Knob switch, device with homogenizing structure, detection device and wall switch

Abstract

The application provides a rotary switch, comprising a first circuit board and a rotary knob assembly, the rotary knob assembly comprising: a sensing part electrically connected with the first circuit board; a triggering part at least partially sleeved outside the sensing part, capable of rotating around the sensing part, and triggering the sensing part to output a pulse signal with a time difference during rotation; a locking part fixedly connected with the first circuit board, abutting against at least part of the upper surface of the triggering part to limit axial displacement of the triggering part; and the locking part being buckled to the sensing part, thereby fixing the sensing part to the first circuit board. The rotary switch provided by the application not only enables the locking part to lock the triggering part to the sensing part, thereby improving the rotating feeling of the rotary knob assembly, but also enables the locking part to fix the sensing part to the first circuit board, thereby making the connection between the sensing part and the first circuit board more secure and improving the reliability of the rotary knob assembly.

Description

Technical Field

[0001] This application relates to the field of switch technology, and in particular to a rotary switch, a device with a light-diffusing structure, a detection device, and a wall switch. Background Technology

[0002] With the popularization of digitalization and networking, smart homes have been integrated into the lives of ordinary people. From lighting and curtains to robot vacuum cleaners, whole-house smart control is also widely used.

[0003] Among them, rotary switches are highly sought after in the smart home market and have a large customer base. This is because, compared with mobile app or screen panel control, rotary switches offer a more intuitive and convenient operating experience, a more agile feel, and a significant cost-performance advantage.

[0004] As existing rotary switches gradually move towards high-end products, users have increasingly higher requirements for the feel of rotary operation and the overall quality of the product, and the performance of rotary switches needs to be improved. Summary of the Invention

[0005] To address the above problems, the present invention provides a rotary switch, a device with a light-diffusing structure, a detection device, and a wall switch;

[0006] According to a first aspect of the present invention, a rotary switch is provided, comprising a first circuit board and a rotary assembly, the rotary assembly comprising: a sensor electrically connected to the first circuit board; a trigger at least partially sleeved on the outside of the sensor and rotatable around the sensor, triggering the sensor to output a pulse signal with a time difference during rotation; and a latching member fixedly connected to the first circuit board, the latching member abutting against at least a portion of the upper surface of the triggering member to restrict the axial displacement of the triggering member; the latching member fastening to the sensor, thereby fixing the sensor to the first circuit board.

[0007] According to a second aspect of the present invention, an apparatus with a light-uniforming structure is provided, comprising: a first circuit board; a light-emitting unit disposed on the first circuit board; a light-uniforming cover corresponding to the position of the light-emitting unit, wherein light emitted by the light-emitting unit is uniformly diffused outward by the light-uniforming cover; a light-blocking member disposed on the side of the light-uniforming cover away from the light-emitting unit, the light-blocking member blocking a portion of the light-uniforming cover to block a portion of the light emitted by the light-uniforming cover; the light-uniforming cover includes an incident light area and an exit light area, wherein light emitted by the light-emitting unit irradiates the light-uniforming cover to form the incident light area in the irradiated area of ​​the light-uniforming cover, and the area of ​​the light-emitting cover emitting light outward constitutes the exit light area; the projection pattern of the exit light area on the first circuit board is set as a first projection pattern, and the projection pattern of the exit light area on the first circuit board is set as a second projection pattern, wherein the first projection pattern and the second projection pattern do not overlap.

[0008] According to a third aspect of the present invention, a detection device is provided, comprising: a middle shell; a movable member movably connected to the middle shell such that the movable member can move toward the middle shell in response to a control force; and a sensor disposed on the side of the middle shell opposite to the movable member for detecting relevant air parameters; wherein the middle shell has a plurality of vent holes extending through the area covered by the movable member, and the position of the sensor corresponds to the vent holes; when the movable member moves toward the middle shell, the movable member drives air into the vent holes to enhance the detection accuracy of the sensor.

[0009] According to a fourth aspect of the present invention, a rotary switch is provided, comprising: a middle shell; a rotary assembly fixed relative to the middle shell, wherein a portion of the rotary assembly is rotatable and, during rotation, triggers the rotary assembly to output a pulse signal; an upper shell covering the middle shell, wherein a first end of the upper shell is magnetically connected to the middle shell; the upper shell having a rotary through hole at a corresponding position of the rotary assembly, the rotary assembly passing through the rotary through hole and at least partially protruding from a first surface of the upper shell, the first surface being the surface of the upper shell away from the middle shell. The outer diameter of the knob assembly is set to ΦA, the distance from the center line of the knob assembly to the edge of the first end of the upper shell is set to L1, the diameter of the knob through hole is set to ΦB, the distance from the center line of the knob through hole to the edge of the first end of the upper shell is set to L2, and the height of the knob assembly protruding from the first surface is set to H. The knob assembly and the upper shell satisfy the relationship: ((L2+ΦB / 2)^2-(L1+ΦA / 2)^2)^0.5≤H.

[0010] According to a fifth aspect of the present invention, a rotary switch is provided, comprising a first circuit board and a rotary assembly, the rotary assembly comprising: a sensing element electrically connected to the first circuit board; a trigger element at least partially sleeved on the outside of the sensing element and capable of rotating around the sensing element, triggering the sensing element to output a pulse signal during rotation; and an operating element sleeved on the outside of the trigger element and capable of driving the trigger element to rotate; wherein, a first snap-fit ​​unit is provided on the side wall of the trigger element, and a second snap-fit ​​unit adapted to the first snap-fit ​​unit is provided on the inner wall of the operating element; a plurality of first positioning grooves are evenly distributed on the outer wall of the trigger element, the first positioning grooves extending from a first end of the trigger element toward a second direction; a second positioning portion protruding from the inner wall of the operating element and adapted to the first positioning groove; the first end is the end of the trigger element away from the first circuit board, and the second direction is the direction of the trigger element toward the first circuit board; when the operating element is sleeved on the trigger element, the second positioning portion is inserted into the first positioning groove from the first end of the first positioning groove and is positioned and engaged with the first positioning groove, while the second snap-fit ​​unit snaps onto the first snap-fit ​​unit.

[0011] According to a sixth aspect of the present invention, a wall switch is provided, comprising: a base shell configured as a slotted structure with one end open; a third circuit board fixedly installed inside the base shell; a base shell buckle integrally formed on the side wall of the base shell, the third circuit board being inserted into the open end of the base shell and snapped into the base shell buckle; a dividing slit is provided on the side wall of the base shell, such that the side wall of the base shell is divided to form the base shell buckle; the dividing slit extends through the inner and outer sides of the side wall of the base shell, and the position of the dividing slit corresponds to the third circuit board, for providing heat dissipation for the third circuit board.

[0012] The beneficial effects of the present invention include at least the following:

[0013] (1) The rotary switch provided by the present invention can not only lock the trigger to the sensing element, so that the trigger can rotate but cannot be separated from the sensing element, thereby improving the tightness of the fit between the trigger and the sensing element and thus improving the rotation feel of the rotary assembly, but also can fix the sensing element to the first circuit board, so that the connection between the sensing element and the first circuit board is tighter, the rotary assembly has higher reliability of operation, and improves the operation feel.

[0014] (2) The device with a uniform light structure provided by the present invention makes the first projection pattern and the second projection pattern of the uniform light cover not overlap, so that the light entrance area and the light exit area of ​​the uniform light cover are misaligned relative to the light emitting unit. The light emitted by the light emitting unit is dispersed and turned inside the uniform light cover before being emitted outward, which makes the uniform light effect better and can still have a good uniform light effect when the uniform light space is small, thereby reducing the overall thickness of the device.

[0015] (3) The detection device provided by the present invention sets the sensor at the relative position of the vent hole, and drives the external air into the vent hole through the movement of the movable part, thereby driving the air around the sensor to circulate, making the relevant indicators detected by the sensor more accurate.

[0016] (4) The rotary switch provided by the present invention satisfies the following relationship between the rotary assembly and the upper shell: ((L2+ΦB / 2)^2-(L1+ΦA / 2)^2)^0.5≤H, which can prevent the upper shell from falling off accidentally;

[0017] (5) The rotary switch provided by the present invention has a first positioning groove that not only provides an installation guide for the operating component, making the assembly efficiency higher, but also the first positioning groove and the second positioning part can reduce the rotation gap between the trigger and the operating component. In addition, the first positioning groove also provides a guiding function for pressing the operating component, making the pressing feel of the operating component better.

[0018] (6) The rotary switch provided by the present invention has a bottom shell buckle that can not only snap and fix the third circuit board, making the installation of the third circuit board convenient and improving the assembly efficiency; but also the dividing seam of the bottom shell buckle runs through the inner and outer sides of the bottom shell, and the dividing seam corresponds to the position of the third circuit board, which can help the third circuit board dissipate heat and improve the heat dissipation performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an exploded view of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the knob assembly structure according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of the trigger and sensing elements according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of an embodiment of the present invention;

[0024] Figure 5 yes Figure 4 Enlarged view of part A in the image;

[0025] Figure 6 This is a schematic diagram of the guide brush and brush head structure according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the guide brush and brush head structure according to an embodiment of the present invention;

[0027] Figure 8a This is a pulse signal diagram according to an embodiment of the present invention;

[0028] Figure 8b This is a pulse signal diagram according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the guide brush and brush head structure according to an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the guide brush and brush head structure according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the guide brush and brush head structure according to an embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of an embodiment of the present invention;

[0033] Figure 13 This is an exploded sectional view of an embodiment of the present invention;

[0034] Figure 14 This is a cross-sectional view of an embodiment of the present invention;

[0035] Figure 15 This is an installation diagram of an embodiment of the present invention;

[0036] Figure 16 This is a schematic diagram of the operating component structure according to an embodiment of the present invention;

[0037] Figure 17 This is an exploded sectional view of an embodiment of the present invention;

[0038] Figure 18 This is an exploded sectional view of an embodiment of the present invention;

[0039] Figure 19 This is an exploded sectional view of an embodiment of the present invention;

[0040] Figure 20 This is a cross-sectional view of an embodiment of the present invention;

[0041] Figure 21 This is an exploded sectional view of an embodiment of the present invention;

[0042] Figure 22 This is a cross-sectional view of an embodiment of the present invention;

[0043] Figure 23 This is an exploded sectional view of an embodiment of the present invention;

[0044] Figure 24 This is an exploded view of an embodiment of the present invention;

[0045] Figure 25 This is an exploded view of an embodiment of the present invention;

[0046] Figure 26 This is a cross-sectional view of an embodiment of the present invention;

[0047] Figure 27 This is an exploded view of an embodiment of the present invention;

[0048] Figure 28 This is a cross-sectional view of an embodiment of the present invention;

[0049] Figure 29 This is a cross-sectional view of an embodiment of the present invention;

[0050] Figure 30 This is an exploded view of an embodiment of the present invention;

[0051] Figure 31 This is an exploded sectional view of an embodiment of the present invention;

[0052] Figure 32 This is a perspective sectional view of an embodiment of the present invention;

[0053] Figure 33 This is an exploded sectional view of an embodiment of the present invention;

[0054] Figure 34 This is an exploded view of an embodiment of the present invention;

[0055] Figure 35 This is an exploded view of an embodiment of the present invention;

[0056] Figure 36 This is a schematic diagram of the bottom shell structure according to an embodiment of the present invention;

[0057] Figure 37 This is a schematic diagram of the structure of an embodiment of the present invention;

[0058] Figure 38 This is an exploded view of an embodiment of the present invention;

[0059] Figure 39 This is a partial cross-sectional view of an embodiment of the present invention;

[0060] Figure 40 This is a perspective cross-sectional view of an embodiment of the present invention;

[0061] Figure 41 yes Figure 40 Enlarged view of part B;

[0062] Figure 42 yes Figure 40 Enlarged view of part C;

[0063] Figure 43This is a schematic diagram of the structure of an embodiment of the present invention;

[0064] Figure 44 This is an exploded view of an embodiment of the present invention;

[0065] Figure 45 This is a schematic diagram of the structure of an embodiment of the present invention;

[0066] Figure 46 This is a schematic diagram of the structure of an embodiment of the present invention;

[0067] Figure 47 This is a schematic diagram of the shell structure in an embodiment of the present invention;

[0068] Figure 48 yes Figure 47 Enlarged view of part D in the image;

[0069] Figure 49 This is an exploded view of an embodiment of the present invention;

[0070] Figure 50 This is an exploded view of an embodiment of the present invention;

[0071] Figure 51 This is a schematic diagram of the structure when the upper shell of an embodiment of the present invention is lifted;

[0072] Figure 52 This is a cross-sectional view of an embodiment of the present invention;

[0073] Figure 53 This is a cross-sectional view of the upper shell of an embodiment of the present invention when it is lifted.

[0074] Figure 54 This is a simplified schematic diagram of the upper shell and knob assembly according to an embodiment of the present invention;

[0075] Figure 55 This is a schematic diagram of the connection circuit of the sensing element and the triggering element according to an embodiment of the present invention;

[0076] Figure 56 This is a partial circuit diagram of the sensing element, trigger element, and first circuit board according to an embodiment of the present invention.

[0077] Figure label:

[0078] 1. Knob on; 5. Knob assembly; 50. Light shield;

[0079] 51. Trigger; 511. Brush head; 512. Brush ring; 5121. Brush arm; 513. First socket; 5131. First snap-fit ​​unit; 5132. First snap-fit ​​groove; 5133. First positioning part; 5134. First positioning groove; 514. First rotary seat; 515. First segment recess;

[0080] 52. Sensing element; 521. Guide brush plate; 5211. First guide brush plate; 5212. Second guide brush plate; 5213. Third guide brush plate; 5214. Conductive area; 5215. Insulating area; 5216. Reinforcing part; 522. Second sleeve part; 5221. Fourth snap-fit ​​unit; 5222. Third positioning groove; 5223. Second snap-fit ​​groove; 523. Second rotary seat; 5231. Claw limiting groove;

[0081] 53. Locking component; 531. First section protrusion; 532. Annular spring; 5321. Positioning protrusion; 533. Locking claw; 534. Annular pressing part; 535. Fixing claw;

[0082] 54. Operating component; 541. Second snap-fit ​​unit; 5411. First snap-fit; 542. Second positioning part; 5431. Bearing; 5432. Spring mounting bracket; 5433. First spring; 544. Third positioning part; 545. Operating component snap-fit; 546. Display screen receiving slot;

[0083] 55. Display screen; 551. Anti-foolproof protrusion on display screen; 552. Locking ring; 5521. Locking buckle; 553. Ribbon cable;

[0084] 56. Display screen bracket; 561. Bearing part; 5611. Limiting part; 5612. Anti-fooling recess; 5613. Second spring; 562. Insertion part; 5621. Third snap-fit ​​unit; 5622. Third positioning rib; 5623. Second buckle; 563. Threaded connecting post;

[0085] 57. Operating sleeve; 571. Fourth positioning part; 572. Recessed annular groove; 573. Pressure transmission part; 58. Light-transmitting sheet; 59. Contact part;

[0086] 6. First circuit board; 61. Proximity sensing module; 62. First detection switch; 621. Second detection switch; 622. Physical switch; 623. Third detection switch; 63. Spring contact; 64. First pin hole; 65. Light-emitting unit; 66. Circuit board through hole; 661. Connection through hole; 67. LED light; 68. Temperature and humidity sensor; 680. Sensor; 69. Conductive spring contact;

[0087] 7. First housing; 71. First pin; 72. Second housing; 721. Second insertion part; 73. Second circuit board; 74. Middle housing; 741. Light-transmitting hole; 742. Light-shielding part; 743. Middle housing through hole; 744. Light-diffusing cover buckle; 745. Pivot shaft; 746. Spring limiting rib; 747. Button latching position; 748. Button through hole; 749. Button light-transmitting hole; 751. Button groove; 752. Vent hole; 753. Sensor surrounding rib; 754. Screw through hole; 755. Permanent magnet; 756. Middle housing buckle; 757. Button battery; 758. Control button;

[0088] 76. Bottom shell; 761. Bottom shell snap-fit ​​position; 762. Bottom shell positioning hole; 763. Mounting hole; 764. Third circuit board; 7641. Wiring terminal; 7642. Wiring spring; 7643. Wiring bolt; 7644. Wiring tube; 765. Bottom shell clip; 766. Anti-slip pad; 767. Heat dissipation hole;

[0089] 77. Top shell; 771. Metal sheet; 772. Metal sheet mounting groove; 773. Limiting protrusion; 774. Hole insertion protrusion; 775. Knob through hole; 78. Button cover; 780. Moving part; 781. Button claw; 782. Button spring; 783. Button latch; 784. Button pressing part; 785. Button rib; 79. Pin header; 791. Nut header;

[0090] 8. Uniform light cover; 81. Light entrance area; 82. Light exit area; 83. Light shielding section receiving groove; 84. Enclosing section; 10. Processing module. Detailed Implementation

[0091] In the description of this invention, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0092] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0093] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0094] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the present invention.

[0095] According to a first aspect of the embodiments of the present invention, please refer to Figures 1-56 The present invention provides a rotary switch 1, which is specifically illustrated below. Existing rotary switches suffer from poor tactile feedback due to a loose fit between the trigger and sensing elements, and the insufficiently secure connection between the knob and the circuit board results in poor operational reliability. To address this problem, the present invention provides a rotary switch 1, such as... Figures 1-4 As shown, the rotary switch 1 includes a first circuit board 6, a rotary assembly 5, and a processing module 10. The rotary assembly 5 includes: a sensor 52 electrically connected to the first circuit board 6; a trigger 51, at least partially sleeved on the outside of the sensor 52, capable of rotating around the sensor 52, and triggering the sensor 52 to output a pulse signal with a time difference during rotation; and a locking member 53 fixedly connected to the first circuit board 6, the locking member 53 abutting against at least a portion of the upper surface of the trigger 51 to limit the axial displacement of the trigger 51; the locking member 53 fastens to the sensor 52, thereby fixing the sensor 52 to the first circuit board 6; the processing module 10 is electrically connected to the sensor 52, used to receive the pulse signal with a time difference output by the sensor 52, and determine the adjustment step size of the rotation control of the trigger 51 based on the pulse signal, generate and send out a control signal based on the adjustment step size, so that the control result pointed to by the control signal can be executed by the corresponding controlled device. The electrical connection can be understood as a conductive connection, which can be achieved through welding, wire connection, plugging, etc. The pulse signal with a time difference can be understood as the sensing element 52 having at least three signal output contacts, capable of outputting pulse signals in pairs (e.g., Figure 8aAs shown in the figure, different pulse signals have timing differences. The processing module 10 determines the rotation direction of the trigger 51 by analyzing the timing differences. In some preferred embodiments, the pulse signal output by the sensing element 52 can be a pulse signal generated by magnetic induction, a pulse signal generated by alternating conduction of conductive sheets, or a pulse signal generated by other means. The locking element 53 provided in this embodiment of the invention can not only lock the trigger 51 to the sensing element 52, so that the trigger 51 can rotate but cannot detach from the sensing element 52, thereby improving the tightness of the fit between the trigger 51 and the sensing element 52 and improving the rotation feel of the knob assembly 5, but also fix the sensing element 52 to the first circuit board 6, making the connection between the sensing element 52 and the first circuit board 6 more secure, the operation reliability of the knob assembly 5 is higher, and the operation feel is improved.

[0096] In some preferred embodiments, such as Figures 3-11 As shown, the sensing element 52 is provided with a plurality of guide brushes 521, which are electrically connected to the first circuit board 6 respectively, and the guide brushes 521 are not electrically connected to each other; the triggering element 51 is provided with a plurality of brush heads 511 that are electrically connected to each other facing the guide brushes 521, for abutting the guide brushes 521; wherein, the guide brushes 521 include at least a first guide brush 5211, a second guide brush 5212 and a third guide brush 5213, the first guide brush 5211 and the second guide brush 5212 are respectively provided with a plurality of conductive areas 5214 at intervals, and an insulating area 5215 is provided between two adjacent conductive areas 5214, and each conductive area 5215 of the same guide brush 521 is insulating. The brushes 5211 and 5212 are electrically connected to a first potential, and the brush 5213 is electrically connected to a second potential. When the trigger 51 rotates relative to the sensing element 52, the brush head 511 passes over the conductive area 5214, the insulating area 5215, and the brush 5213, continuously changing the conductivity relationship between the brushes 521. There is a preset phase angle between the conductive area 5214 of the first brush 5211 and the conductive area 5214 of the second brush 5212, so that a pulse signal with a time difference is formed between the brushes 521. The first guide brush 5211 and the second guide brush 5212 are respectively alternately provided with the conductive area 5214 and the insulating area 5215. When the brush head 511 swipes across the guide brush 521, the brush head 511 alternately switches the conduction relationship with the conductive area, thereby outputting a pulse signal. A preset phase angle exists between the conductive area 5214 of the first guide brush 5211 and the conductive area 5214 of the second guide brush 5212. Figure 7The γ angle (in the image) causes the conduction relationship between the brush head 511 and the first guide brush 5211 and the second guide brush 5212 to be asynchronous, resulting in a timing difference in the pulse signals output by the two guide brushes relative to the third guide brush 5213. Furthermore, this timing difference can be directly controlled by controlling the preset phase angle, making pulse signal control simpler and more direct. Compared to a magnetic induction encoder, this invention uses a switching conduction method between the brush head 511 and the guide brush 521, resulting in faster pulse signal transitions. Figure 8a The diagram shown is a pulse diagram according to an embodiment of the present invention. As can be seen from the diagram, the pulse signal generated by the structure provided by the present invention has a very short transition time, thus making the timing of the pulse signal transition more controllable. Preferably, the first brush piece 5211 and the second brush piece 5212 are electrically connected to a high potential, and the third brush piece 5213 is grounded. When the brush head 511 conducts the first brush piece 5211 and the third brush piece 5213, the first brush piece 5211 changes from a high level to a low level. When the brush head 511 conducts the second brush piece 5212 and the third brush piece 5213, the second brush piece 5212 changes from a high level to a low level, thereby outputting as shown in the diagram. Figure 8a The pulse signal shown.

[0097] Furthermore, such as Figure 8bAs shown, the pulse signal includes an alternating first level signal and a second level signal. The first level signal generates a first fluctuation when switching to the second level signal, and the second level signal generates a second fluctuation when switching back to the first level signal. When the trigger 51 rotates at an angular velocity of 360° / s, the duration of the first fluctuation and the second fluctuation is less than 6ms. The criteria for determining the first fluctuation and the second fluctuation are related to a first level threshold and a second level threshold. When the value of the level signal is greater than the first level threshold, the current level signal is determined to be a first level signal; when the value of the level signal is less than the second level threshold, the current level signal is determined to be a second level signal. In a preferred embodiment, the first level threshold = 0.7 × (first level signal value - second level signal value) + second level signal value, and the second level threshold = 0.3 × (first level signal value - second level signal value) + second level signal value. The first level signal value is equal to the first potential connected to the first brush plate 5211, and the second level signal value is equal to the second potential connected to the second brush plate 5212. During the conversion of the first level signal to the second level signal, the first time the level signal breaks through the first level threshold is considered as triggering the first fluctuation, and the last time the level signal breaks through the second level threshold is considered as the end of the first fluctuation. The duration of the first fluctuation can be derived from this, and similarly, the duration of the second fluctuation can be calculated. Because this invention uses a brush head 511 and a guide brush 521, the level switching is relatively direct and rapid, resulting in very short durations for both the first and second fluctuations. In this embodiment, the durations of the first and second fluctuations are controlled to be below 6ms, enabling rapid switching between the first and second level signals. This allows the processing module 10 to more accurately identify the level signal and also facilitates the rotation of the knob assembly 5 into divisions. Specifically, if the switching time between the first and second level signals is long, the accuracy requirement for the division point of the knob assembly 5 rotating one division becomes very high. Due to manufacturing errors, there may be situations where the knob assembly 5 cannot trigger a pulse signal when rotating one division, or where rotating one division triggers two pulse signals consecutively. Therefore, by controlling the duration of the first and second fluctuations within a small range during the design process, the stability of the knob assembly 5 can be improved. At the same time, the precision requirement of the dividing point when the knob assembly 5 rotates one notch can be reduced, thereby reducing the manufacturing precision requirements and manufacturing difficulty.

[0098] The specific structure of the brush head 511 is as follows: Figure 6As shown, the brush head 511 and a brush ring 512 are integrally formed. Multiple brush arms 5121 are cut from the outer edge of the brush ring 512. Each brush arm 5121 bends downwards relative to the brush ring 512, and then bends downwards again at its end before bending upwards to form the brush head 511, which abuts against the guide brush plate 521 to achieve electrical conductivity. The brush ring 512 has multiple brush ring mounting holes for fixed installation on the lower surface of the trigger member 51. Figure 5 As shown, under the abutting action of the latching member 53, the trigger member 51 presses against the brush ring 512, and then against the brush head 511. The brush head 511 undergoes elastic deformation, which increases the contact area between the brush head 511 and the guide brush plate 521, thereby enhancing the conductivity between the brush head 511 and the guide brush plate 521.

[0099] Furthermore, such as Figure 6 and Figure 7 As shown, the guide brushes 521 are spaced apart and mutually enclose each other to form a ring-like structure. The central angle shared by the conductive area 5214 and an adjacent insulating area 5215 is denoted as ε. A preset interval is provided between the end of the first guide brush 5211 facing the third guide brush 5213 and the second guide brush 5212, such that the preset phase angle is generated between the conductive areas 5214 of the first guide brush 5211 and the conductive areas 5214 of the second guide brush 5212. The central angle occupied by the preset interval is denoted as γ. The number of brush heads 511 is m. Then, ε and γ satisfy the relationship: 360 / m + (k - 0.75) × ε / 2 ≤ γ ≤ 360 / m + (k - 0.25) × ε / 2, where k is a positive integer. The angle measurement unit of this invention is degrees, not radians. The ring-like structure can be a circular ring, a semi-circular ring, a square ring, or other ring or semi-circular structures. This invention controls the timing difference of a pulse signal by controlling the central angle γ occupied by the preset interval, achieving precise control of the timing difference while maintaining low manufacturing cost. When γ = 360 / m + (k - 0.5) × ε / 2, the waveform of the pulse signal is as follows: Figure 8aAs shown in the figure, the first pulse signal is the pulse signal between the first guide brush 5211 and the third guide brush 5213, and the second pulse signal is the pulse signal between the second guide brush 5212 and the third guide brush 5213. As can be seen from the figure, the second pulse signal lags behind the first pulse signal by 1 / 4 of a waveform cycle. The interval between the two dashed lines in the figure represents the travel distance of the knob assembly 5 rotating one notch. In a preferred embodiment, the knob assembly 5 rotates 30 notches in one revolution. It can be seen from the figure that when the timing difference decreases to a certain limit, due to manufacturing errors, the timing difference may disappear or become unrecognizable. When the timing difference increases to another limit, the precision of the notch division point for the knob assembly 5 rotating one notch is very high. Due to manufacturing errors, the knob assembly 5 may not trigger a pulse signal when rotating one notch, or it may trigger two pulse signals consecutively when rotating one notch. Therefore, during the design process, the central angle γ occupied by the preset interval should be as close as possible to 360 / m + (k - 0.5) × ε / 2. This improves the stability of the knob assembly 5 while reducing manufacturing precision requirements. Through multiple experiments, the inventors have verified that setting the γ value to 360 / m + (k - 0.75) × ε / 2 ≤ γ ≤ 360 / m + (k - 0.25) × ε / 2 makes the timing of triggering feedback when the knob assembly 5 rotates one notch more appropriate. This effectively reduces the requirements for manufacturing precision, thereby lowering manufacturing difficulty. Furthermore, the error rate when the knob assembly 5 rotates one notch is lower, making the control feedback of the knob assembly 5 more responsive and the operation more stable and reliable. In some preferred embodiments, controlling ε and γ to satisfy the relationship: 360 / m + (k - 0.6) × ε / 2 ≤ γ ≤ 360 / m + (k - 0.3) × ε / 2 further improves the stability of the knob assembly 5 and reduces the requirements for manufacturing precision. Furthermore, if the number of conductive areas 5214 on the first guide brush 5211 is set to b, then the included angle θ between adjacent brush heads 511 satisfies the relationship: θ=b×ε, so that when the knob assembly 5 rotates one revolution, the brush head 511 and the conductive area 5214 can form a complete conductive cycle, so as to ensure that the knob assembly 5 can trigger a pulse signal every time it is rotated.

[0100] For easier observation, Figures 7-11 The area where the middle brush head 511 contacts the guide brush plate 521 is simplified to a small circle.

[0101] In some embodiments, such as Figure 7 and Figure 9 As shown, in an embodiment where the number of brush heads 511 is m=5, γ=360 / m+(k-0.5)×ε / 2, and k takes values ​​of 1, 7, 4, and 13, the knob assembly 5 rotates one revolution, and the number of divisions n=30. When m=5, the included angle between adjacent brush heads 511 is θ=360 / m=72°, b=n / (2×m)=3, and ε=θ / b=24°. Figure 7The left figure shows an embodiment with k=1. According to the above formula, γ=78°. At this time, if the brush head 511 rotates clockwise, the left brush head 511 will disengage from the conductive area 5214 of the first guide brush plate 5211, and the right brush head 511 will be located at the center of the conductive area 5214 of the second guide brush plate 5212. That is, the pulse of the first guide brush plate 5211 is earlier than the pulse of the second guide brush plate 5212. The pulse waveform diagram is shown below. Figure 8a As shown, the timing difference between the two pulses is equal to 1 / 4 of a waveform period, achieving the expected design requirements. Furthermore, since the guide brush 521 is sleeved on the sensing element 52, to facilitate the installation of the guide brush 521, a large insulation is extended from the end of the first guide brush 5211 and the second guide brush 5212 that faces away from the third guide brush 5213, and a reinforcing part 5216 is provided at the end of the large insulation area to enhance the strength of the guide brush 521.

[0102] Figure 7 The right figure shows an embodiment when k=7. According to the above formula, γ=150°. At this time, if the brush head 511 rotates clockwise, the left brush head 511 has already disengaged from the conductive area 5214 of the first guide brush 5211, and the right brush head 511 is about to disengage from the conductive area 5214 of the second guide brush 5212. That is, the pulse of the first guide brush 5211 is earlier than the pulse of the second guide brush 5212. The pulse waveform diagram is as follows. Figure 8a As shown, the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements.

[0103] Figure 9 The left figure shows an embodiment when k=4. According to the formula provided above, γ=114° can be calculated. At this time, if the brush head 511 rotates clockwise, the left brush head 511 will enter the conductive area 5214 of the first guide brush 5211, and the right brush head 511 will reach the center position of the conductive area 5214 of the second guide brush 5212. That is, the pulse of the second guide brush 5212 is earlier than the pulse of the first guide brush 5211, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements. Figure 9 The right figure shows an embodiment when k=13. According to the formula provided above, γ=222° can be calculated. At this time, if the brush head 511 rotates clockwise, the right brush head 511 will be about to detach from the conductive area 5214 of the second guide brush 5212, and the left brush head 511 will reach the center position of the insulating area 5215 of the first guide brush 5211. That is, the pulse of the first guide brush 5211 is earlier than the pulse of the second guide brush 5212, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements.

[0104] In some embodiments, such as Figure 10As shown, the number of brush heads 511 is m = 3, k = 1 or 2, the included angle between brush heads 511 is θ = 360 / m = 120°, the number of divisions rotated by the knob assembly 5 in one revolution is n = 30 divisions, the number of conductive areas 5214 on the first guide brush plate 5211 is b = n / (2×m) = 5, ε = θ / b = 24°. Figure 10 The left figure shows an example when k=1. According to the formula provided above, γ=360 / m+(k-0.5)×ε / 2=126°. At this time, if the brush head 511 rotates clockwise, the right brush head 511 will soon detach from the conductive area 5214 of the second guide brush 5212, and the left brush head 511 will soon reach the center position of the insulating area 5215 of the first guide brush 5211. That is, the pulse of the second guide brush 5212 is earlier than the pulse of the first guide brush 5211, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements. Figure 10 The right figure shows an example when k=2. According to the formula provided above, γ=360 / m+(k-0.5)×ε / 2=138°. At this time, if the brush head 511 rotates clockwise, the left brush head 511 will soon detach from the conductive area 5214 of the first guide brush 5211, and the right brush head 511 will soon reach the center position of the insulating area 5215 of the second guide brush 5212. That is, the pulse of the first guide brush 5211 is earlier than the pulse of the second guide brush 5212, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements.

[0105] In some embodiments, such as Figure 9 and Figure 11 As shown, the number of brush heads 511, m = 4, 5, or 6, and k ≤ 25. (As...) Figure 11 As shown in the left figure, the number of brush heads 511 is m = 4, k = 3, the included angle between brush heads 511 is θ = 360 / m = 90°, the number of divisions rotated by the knob assembly 5 in one revolution is n = 32 divisions, the number of conductive areas 5214 on the first guide brush plate 5211 is b = n / (2×m) = 4, ε = θ / b = 22.5°, γ = 360 / m + (k - 0.5) × ε / 2 = 118.125°. If the brush head 511 rotates clockwise, the right brush head 511 will soon enter the conductive area 5214 of the second guide brush plate 5212, and the left brush head 511 will have reached the center position of the conductive area 5214 of the first guide brush plate 5211. That is, the pulse of the first guide brush plate 5211 is earlier than the pulse of the second guide brush plate 5212, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, achieving the expected design requirements. Figure 11As shown in the right figure, the number of brush heads 511 is m=6, k=1, the included angle between brush heads 511 is θ=360 / m=60°, the number of divisions rotated by the knob assembly 5 in one revolution is n=24, the number of conductive areas 5214 on the first guide brush plate 5211 is b=n / (2×m)=2, ε=θ / b=30°, γ=360 / m+(k-0.5)×ε / 2=67.5°. At this time, if the brush head 511 rotates clockwise, the right brush head 511 will enter the conductive area 5214 of the second guide brush plate 5212, and the left brush head 511 has reached the center position of the conductive area 5214 of the first guide brush plate 5211. That is, the pulse of the first guide brush plate 5211 is earlier than the pulse of the second guide brush plate 5212, and the timing difference between the two pulses is equal to 1 / 4 of a waveform period, which meets the expected design requirements.

[0106] The embodiments provided in this invention are merely exemplary embodiments, and the scope of protection of this invention is not limited thereto. Any embodiment that satisfies the ε and γ relationship provided in this invention is within the scope of protection of this invention.

[0107] Furthermore, such as Figure 7 , Figure 9 , Figure 10 and Figure 11 As shown, the central angle occupied by the conductive area 5214 is set as α, and α and ε satisfy the relationship: 0.25×ε≤α≤0.75×ε. Setting the value of α close to 0.5 of the value of ε makes the time occupied by the low level and the high level of the pulse wave similar, thus increasing the allowable error range of the division point when the knob assembly 5 rotates one notch. This further improves the stability of the output pulse wave during the rotation of the knob assembly 5, while reducing the manufacturing precision requirements. In some preferred embodiments, α=0.5×ε.

[0108] Furthermore, such as Figure 7 , Figure 9 , Figure 10 and Figure 11 As shown, the central angle occupied by the third guide brush 5213 is set as β, and β and m satisfy the relationship: 360 / m≤β≤360 / m-5. This ensures that when one brush head 511 contacts the conductive area 5214, the other brush head 511 will inevitably contact the third guide brush 5213, thus guaranteeing the stability of the pulse signal output.

[0109] Furthermore, such as Figure 3 and Figure 2 As shown, the trigger 51 includes a first socket portion 513, and the sensing element 52 includes a second socket portion 522; the first socket portion 513 and the second socket portion 522 are constructed in a cylindrical shape, the first socket portion 513 is sleeved on the second socket portion 522, and is rotatable around the second socket portion 522. Further, as...Figures 3-5 As shown, the first socket 513 has a first rotating seat 514 at its end, and the second socket 522 has a second rotating seat 523 at its end. The guide brush 521 is laid on the second rotating seat 523 facing the first rotating seat 514, and the brush head 511 is disposed on the first rotating seat 514 facing the second rotating seat 523. When the first socket 513 is fitted onto the second socket 522, the brush head 511 abuts against the guide brush 521. Further, the second rotating seat 523 has a recessed groove (not shown in the figure) that matches the shape of the guide brush 521, which is used to install the guide brush 521, so that the upper surface of the guide brush 521 is flush with the upper surface of the second rotating seat 523, reducing the stepped feel of the brush head 511 traversing the conductive area 5214 and the insulating area 5215, and making the rotation of the trigger 51 smoother.

[0110] Furthermore, such as Figure 3 As shown, the trigger 51 is surrounded by a plurality of first segment recesses 515, and the latching member 53 and / or the sensing member 52 is provided with at least one first segment protrusion 531 adapted to the first segment recesses 515. When the trigger 51 rotates relative to the sensing member 52, the first segment protrusion 531 and each of the first segment recesses 515 alternately engage, so that the trigger 51 produces a segmented feel during rotation. The number of first segment recesses 515 is set to n, and n and ε satisfy the relationship: 630 / ε≤n≤810 / ε, so that the number of first segment recesses 515 corresponds to the number of rotations of the knob assembly 5 in one revolution, ensuring that the sensing member 52 outputs a pulse signal for each rotation of the trigger 51. The number of first segment recesses 515, i.e., the number of rotations of the trigger 51 in one revolution, is equal to n.

[0111] Furthermore, such as Figure 3 and Figure 5As shown, the upper surface of the first rotary seat 514 is surrounded by a plurality of first segment recesses 515. The locking member 53 abuts against the upper surface of the first rotary seat 514 and has a first segment protrusion 531 protruding towards the upper surface of the first rotary seat 514. When the trigger member 51 rotates relative to the sensing member 52, the first segment protrusion 531 alternately engages with each of the first segment recesses 515, so that the trigger member 51 generates the segmented feeling during rotation. Further, the locking member 53 includes an annular spring piece 532, which is disposed on the side of the locking member 53 facing the first rotary seat 514. The annular spring piece 532 is integrally formed with the first segment protrusion 531; wherein, the side end of the annular spring piece 532 has a positioning protrusion 5321 for engaging with the locking member 53 for positioning. The positioning protrusion 5321 is constructed as forked arms protruding outward from both sides of the annular spring piece 532. The forked arms are forked into the two sides of the latching claws 533 of the latching member 53 to achieve positioning of the annular spring piece 532 and the latching member 53. The latching claws 533 of the latching member 53 are engaged with the claw limiting grooves 5231 of the sensing member 52, so that the annular spring piece 532 is positioned with the sensing member 52. In turn, the annular spring piece 532 is indirectly positioned with the guide brush piece 521, so that the phase angle of the first segment protrusion 531 corresponds to the guide brush piece 521 of the sensing member 52, so as to control the phase angle of the brush head 511 relative to the guide brush piece 521, ensuring that the sensing member 52 outputs a pulse signal for every turn of the knob assembly 5. Furthermore, the annular spring 532 is constructed as a concave arc-shaped structure with a low center and high sides. The positioning protrusions 5321 on both sides of the annular spring 532 are located higher than the first segment protrusion 531, and the first segment protrusion 531 is located at the lowest position of the annular spring 532, so as to ensure that the first segment protrusion 531 can completely abut against the first segment recess 515. The annular spring 532 is clamped and pressed by the locking member 53 and the first rotating seat 514 to undergo elastic deformation, so as to enhance the abutting force of the first segment protrusion 531 and improve the segment feel when the trigger member 51 rotates.

[0112] In another embodiment (not shown in the figure), the second rotary seat 523 is recessed with a first receiving groove, the first rotary seat 514 is received in the first receiving groove, the side of the first rotary seat 514 is surrounded by a plurality of first segment recesses 515, and the side wall of the first receiving groove is provided with at least one first segment protrusion 531. When the trigger 51 rotates relative to the sensing element 52, the first segment protrusion 531 and each of the first segment recesses 515 alternately cooperate to make the trigger 51 generate the segmented feeling during rotation.

[0113] Furthermore, such as Figure 3 and Figure 2As shown, the locking member 53 includes an annular pressing portion 534 and a plurality of fastening claws 533 extending from the outer edge of the annular pressing portion 534 toward the first circuit board 6. The annular pressing portion 534 abuts against the upper surface of the first rotary seat 514, and the fastening claws 533, after being bent, fasten to the lower surface of the second rotary seat 523, so as to clamp the first rotary seat 514 between the annular pressing portion 534 and the second rotary seat 523. The annular pressing portion 534 is constructed as a ring, the inner diameter of which is adapted to the outer diameter of the first sleeve portion 513, and the annular pressing portion 534 is sleeved around the first sleeve portion 513. Further, a plurality of fixing claws 535 extending from the outer edge of the annular pressing portion 534 toward the first circuit board 6 are welded to the first circuit board 6 to achieve a fixed connection between the locking member 53 and the first circuit board 6. Furthermore, the second rotary seat 523 has at least two downwardly protruding positioning posts, and the first circuit board 6 has positioning holes adapted to the positioning posts. The positioning posts are inserted into the positioning holes to position the sensing element 52. Furthermore, the side wall of the second rotary seat 523 has a plurality of claw limiting grooves 5231 recessed therein. Each claw limiting groove 5231 respectively accommodates the latching claw 533 and the fixing claw 535, so that the second rotary seat 523 and the latching element 53 are normally positioned, thereby realizing the indirect positioning of the annular spring piece 532 and the guide brush piece 521.

[0114] Furthermore, such as Figure 2 As shown, the first circuit board 6 is equipped with a proximity sensing module 61 for sensing changes in the electric field within a preset area. The latching member 53 is electrically connected to the proximity sensing module 61, and the latching member 53 is made of metal, thus serving as an antenna for the proximity sensing module 61. The preset area can be the area directly in front of the first circuit board 6. Using the latching member 53 as the antenna (sensing electrode) of the proximity sensing module 61 not only improves the space utilization of the first circuit board 6, but also, because the height of the latching member 53 is higher than that of the first circuit board 6, results in better sensing performance from the sensing module 61.

[0115] Furthermore, such as Figure 2 and Figure 3 As shown, the locking member 53 includes an annular pressing part 534 and a plurality of fixing claws 535 extending from the outer edge of the annular pressing part 534 toward the first circuit board 6. The fixing claws 535 are soldered to the first circuit board 6, and the locking member 53 is electrically connected to the proximity sensing module 61 through the fixing claws 535.

[0116] like Figure 55As shown, the first sensing end of the sensing element 52 is electrically connected to a first power source, so as to send out a first level signal in response to the rotation of the trigger element 51 controlling the on / off of the first power source.

[0117] The second sensing end of the sensing element 52 is electrically connected to a second power source, so as to send out a second level signal in response to the rotation control of the trigger element 51 to control the on / off of the second power source.

[0118] In this circuit, the first sensing terminal and the second sensing terminal of the sensing element 52 are either of ES1, and the first power supply and the second power supply can be 3.3V power supplies. The 3.3V power supply is connected to the level output terminal KA via resistors R9 and R25, and the 3.3V power supply is connected to the level output terminal KB via resistors R11 and R26. When ES1 is turned on or off in response to the rotation of the trigger element 51, the KA and KB terminals output high and low level pulses with phase. The rotary switch can identify the direction of the user's rotation of the rotary knob assembly 5 (e.g., clockwise or counterclockwise rotation) by judging the phase difference, and can also identify the knob rotation scale by the number of pulses to determine the adjustment step size of the knob rotation. In addition, capacitors C17 and C19 are reserved in the circuit for filtering.

[0119] Furthermore, considering that when the sensing terminal of the sensor 52 is turned on in response to the rotation of the trigger 51, the sensing terminal of the sensor 52 is grounded and outputs a low level, the power supply connected to it will generate a continuous leakage current. If the sensing terminal 52 is always in the on state, the leakage current will last for too long, resulting in significant energy consumption. When the rotary switch is powered by a battery, the standby time of the rotary switch will be reduced, requiring users to replace the battery frequently, which will affect the user experience.

[0120] Based on this, such as Figure 55 As shown, the sensing terminal of the sensing element 52, for example, its level output terminal KA, is electrically connected to the first terminal of the first switching transistor Q3, the control terminal of the first switching transistor Q3 is electrically connected to the voltage control unit, and the second terminal of the first switching transistor Q3 is electrically connected to the third power supply DVCC-3.

[0121] When the sensing end of the sensing element 52 is disconnected in response to the rotation of the trigger element 51, the voltage control unit outputs a first voltage control signal to turn on the first switch Q3, and KA sends a high-level signal outward based on the third power supply DVCC-3.

[0122] When the sensing terminal of the sensing element 52 is turned on in response to the rotation of the trigger element 51, the voltage control unit outputs a second voltage control signal to turn off the first switch Q3 and send a low-level signal to KA.

[0123] Optionally, the voltage control unit includes a second switch Q2, a fourth power supply DVCC-4, and a fifth power supply DVCC-5. The first terminal of the second switch Q2 is electrically connected to the control terminal of the first switch Q3, the second terminal of the second switch Q2 is connected to the fourth power supply DVCC-4, and the control terminal of the second switch Q2 is connected to the fifth power supply DVCC-5.

[0124] When the sensing end of the sensing element 52 is disconnected in response to the rotation of the trigger element 51, the fifth power supply DVCC-5 controls the second switch Q2 to turn off, so as to output a first voltage control signal to the control end of the first switch Q3, so that the first switch is turned on.

[0125] When the sensing terminal of the sensing element 52 is turned on in response to the rotation of the trigger element 51, the fifth power supply DVCC-5 controls the second switch Q2 to turn on, so as to output a second voltage control signal to the control terminal of the first switch Q3, causing the first switch Q3 to turn off. The first and second switches are MOSFETs.

[0126] In addition, it may include resistors R16 and R17 connected between the fifth power supply DVCC-5 and KA, resistor R18 connected between the fourth power supply DVCC-4 and the second switch Q2, resistors R19 and R20 connected to the control terminal of the first switch Q3, and resistor R21 connected between the third power supply DVCC-3 and the first switch Q3.

[0127] In this embodiment, if only pull-up resistors are used at both ends of KA and KB, such as Figure 55 R9 and R11 in the circuit are kept at a high level. When KA and KB are both at a low level, it is equivalent to directly grounding one end of the pull-up resistor. This will greatly increase power consumption (taking a 100K pull-up resistor as an example, at 3V, there will be a leakage current of 60uA in both paths until the KA and KB terminals change level). Increasing the pull-up resistor can reduce leakage current, but the chip will not be able to recognize the high level after the resistance is increased. Therefore, a method is used... Figure 56 The circuitry in the diagram solves the above problems;

[0128] For KA: When knob ES1 is in the open state, the base of Q2 is pulled up by R16, and Q2 is in the off state. At this time, the base of Q3 is pulled down by R20, and Q3 is in the on state. KA's voltage level is high at this time. When knob ES1 changes from the open state to the closed state, the base of Q2 is pulled down by R17, causing Q2's voltage level to rise. GS When the conduction threshold is reached, Q2 is in the conducting state. At this time, the base of Q3 is pulled up by R18, causing V of Q3 to... GSIf the conduction threshold is not reached, Q3 is in the off state, and KA is at a low level at this time, simultaneously disconnecting the pull-up resistor from ground; that is, the connection between the third power supply DVCC-3 and ground through the resistor is turned off, and no leakage current is generated by the third power supply DVCC-3. Although the fifth power supply DVCC-5 can be connected to ground through R16 and R17, the leakage current can be reduced by configuring R16 and R17 with high-value resistors, and this will not affect the high-level output of the third power supply DVCC-3 when the knob ES1 is off, making it easy for the chip to recognize.

[0129] For the circuit and principle of the KB section, please refer to the description of KA, which will not be repeated here.

[0130] Further, please refer to Figure 1 , Figures 12-29 ,like Figure 15 As shown, the knob assembly 5 further includes an operating member 54, sleeved on the outer side of the first sleeve portion 513; a first engaging unit 5131 is provided on the side wall of the first sleeve portion 513, and a second engaging unit 541 is provided on the inner wall of the operating member 54. The second engaging unit 541 engages with the first engaging unit 5131, so that the operating member 54 can drive the trigger member 51 to rotate. The second engaging unit 541 can be a buckle or a metal spring, and the first engaging unit 5131 can be a engaging groove that cooperates with the first engaging unit 5131, or a method that can be implemented by those skilled in the art.

[0131] Furthermore, such as Figure 15 As shown, the first latching unit 5131 includes at least one first latching groove 5132, and the second latching unit 541 includes at least one first latch 5411. The first latch 5411 latches into the first latching groove 5132 to limit the extreme position of the operating member 54 moving toward the first direction, which is the direction in which the trigger member 51 moves away from the first circuit board 6. The first direction is already... Figure 14 According to the winning bid, in a specific embodiment, the outer wall of the first socket portion 513 is evenly provided with three first snap-fit ​​grooves 5132, the first snap-fit ​​grooves 5132 extend toward the first circuit board 6, and the inner wall of the operating member 54 is correspondingly provided with three first buckles 5411, the first buckles 5411 snap into the first snap-fit ​​grooves 5132, so that the operating member 54 can perform a pressing movement along the first snap-fit ​​grooves 5132.

[0132] Furthermore, such as Figure 15 and Figure 16As shown, the outer wall of the first socket 513 is provided with a first positioning part 5133, and the inner wall of the operating member 54 is provided with a second positioning part 542 adapted to the first positioning part 5133. When the operating member 54 is sleeved on the first socket 513, the second positioning part 542 and the first positioning part 5133 are positioned and engaged, so that the operating member 54 can drive the trigger member 51 to rotate. Using the positioning engagement of the first positioning part 5133 and the second positioning part 542 can improve the normal positioning accuracy of the operating member 54, reduce the rotational gap between the operating member 54 and the first socket 513, and make the knob assembly 5 easier to operate. Further, the first positioning part 5133 includes at least one first positioning groove 5134, and the second positioning part 542 includes at least one first positioning rib. The first positioning rib is inserted into the first positioning groove 5134 to realize the positioning engagement of the second positioning part 542 and the first positioning part 5133. In one specific embodiment, the outer wall of the first socket 513 is evenly provided with three first positioning grooves 5134. The first positioning grooves 5134 extend downward from the upper end of the first socket 513. The operating member 54 is provided with three first positioning ribs. The first positioning ribs are in clearance fit with the first positioning grooves 5134. The operating member 54 can move along the first positioning grooves 5134 so that the operating member 54 can generate a pressing motion.

[0133] Furthermore, the knob assembly 5 also includes an operating housing (not shown in the figure), which is sleeved on the outside of the operating member 54. The outer wall of the operating member 54 is provided with a third positioning portion, and the inner wall of the operating housing is correspondingly provided with a fourth positioning portion. The third positioning portion and the fourth positioning portion are positioned and engaged, allowing the operating housing to drive the operating member 54 to rotate. Further, the third positioning portion includes at least one second positioning rib, and the fourth positioning portion includes at least one second positioning groove. The second positioning rib is inserted into the second positioning groove to achieve the positioning engagement between the third positioning portion and the fourth positioning portion. Further, the operating housing is constructed as a cylindrical structure or a cap-like structure; the operating housing is made of metal. Sleeving the operating housing onto the outside of the operating member 54 improves the surface strength of the operating member 54, enhances its wear resistance, and improves the tactile feel of the operating member 54.

[0134] Furthermore, such as Figures 13-20 As shown, the operating member 54 extends toward the first circuit board 6 and is provided with an abutment portion 59. The first circuit board 6 is provided with a first detection switch 62 at a position corresponding to the abutment portion 59. The operating member 54 is configured to move toward the first circuit board 6 in response to a driving force and drive the abutment portion 59 to press against the first detection switch 62.

[0135] Furthermore, such as Figures 14-18As shown, the operating member 54 is constructed as a cap-like structure with a closed first end and an open second end. A contact portion 59 extends from the center of the first end toward the first circuit board 6, passing through the second sleeve portion 522 and positioned above the first detection switch 62. Specifically, the first end of the operating member 54 is the end away from the first circuit board 6, and the second end is the end toward the first circuit board 6. Further, as... Figure 15 and Figure 16 As shown, the operating component 54 is constructed as a knob, including a control part disposed on the outer ring and a drive part disposed on the inner ring. The control part is used to receive the user's driving force, and the drive part is provided with a second snap-fit ​​unit 541 and a second positioning part 542 for connecting the first socket part 513. A connecting rib is provided between the control part and the drive part to strengthen the strength of the control part and the drive part. An arc-shaped reinforcing rib is provided on the inner side of the drive part to strengthen the strength of the drive part and reduce the amount of deformation of the drive part during injection molding. Further, the abutment part 59 is constructed as a boss with a cross-section similar to a "Y" or "X" shape to reduce the amount of deformation of the abutment part 59 during injection molding.

[0136] Furthermore, such as Figures 13-15As shown, the first latching unit 5131 includes at least one first latching groove 5132 extending toward the first circuit board 6, and the second latching unit 541 includes at least one first latch 5411. The first latch 5411 can latch onto the first latching groove 5132 and slide along the first latching groove 5132. When the operating member 54 moves toward the first circuit board 6 in response to the driving force, the first latch 5411 slides along the first latching groove 5132, and the contact portion 59 presses against and triggers the first detection switch 62. When the driving force is removed, the operating member 54 returns to its initial position under the elastic force of the first detection switch 62. In this embodiment of the invention, the operating member 54 is reset by the elastic force of the first detection switch 62 itself without adding an additional reset structure. This not only simplifies the structure but also reduces the reset force, making the pressing force of the operating member 54 lighter, the trigger feedback clearer, and improving the pressing feel. When the first detection switch 62 is triggered, its spring force changes abruptly. During the pressing / resetting process, the operating element 54 is only subjected to the spring force of the first detection switch 62, allowing the feedback from the first detection switch 62 to be transmitted to the user more directly. This makes the trigger feedback clearer and further improves the control feel of the operating element 54. Furthermore, the first detection switch 62 uses a micro switch. Micro switches have lower trigger force, crisper trigger feedback, and a clearer feedback sound, allowing the user to enjoy a light pressing feel while clearly feeling the feedback from the detection switch, greatly improving the control experience of the operating element 54. Rotary switches are often used as dimming switches in the smart home field. Rotary switches are frequently rotated while being pressed, but existing rotary switches generally have an additional reset element, making pressing relatively difficult. This embodiment of the invention uses the detection switch as a reset element, reducing the required pressing force and improving the trigger feedback of the detection switch, greatly improving the control feel of the rotary switch, which is of great significance to rotary switches.

[0137] Furthermore, the second positioning part 542 of the operating member 54 and the first positioning part 5133 of the first sleeve part 513 are fitted with a clearance, with the clearance set to 0.06mm-0.25mm, which reduces the friction when the operating member 54 is pressed and reset, making the pressing feel smoother.

[0138] Furthermore, such as Figure 15 and Figure 14 As shown, the distance between the upper surface of the first latch 5411 and the upper end of the first latching groove 5132 in a first direction is set to be less than or equal to 1.1 mm, where the first direction is the direction in which the trigger 51 is away from the first circuit board 6. The first direction has already been... Figure 14Specifically, when the operating component 54 is installed on the first socket 513, the first latch 5411 of the operating component 54 is engaged with the first latching groove 5132. The upper end of the first latching groove 5132 limits the first latch 5411 in the first direction. Since the operating component 54 is reset only by the spring force of the first detection switch 62, the distance between the first latch 5411 and the first latching groove 5132 in the first direction is set to be less than or equal to 1.1mm, so that the contact part 59 is close to the first detection switch 62 in its natural state, so that the operating component 54 will not be loose in the first direction.

[0139] In another embodiment, such as Figure 17 As shown, a spring piece 63 is provided between the first detection switch 62 and the contact portion 59. The two ends of the spring piece 63 are bent towards the first circuit board 6 and fixed to the first circuit board 6. The spring piece 63 can elastically deform in response to the pressure of the contact portion 59. When the operating member 54 moves towards the first circuit board 6 in response to the driving force, the contact portion 59 presses against the spring piece 63, causing the spring piece 63 to elastically deform, thereby pressing and triggering the first detection switch 62. When the driving force is removed, the operating member 54 returns to its initial position under the elastic force of the spring piece 63. The elastic deformation of the spring piece 63 in response to the pressure of the contact portion 59 can be understood as the spring piece 63 being made of an elastic material, covering the first detection switch 62, with the contact portion 59 pressing against the upper surface of the spring piece 63. The spring piece 63 can be deformed downwards by the pressure of the contact portion 59, thereby triggering the first detection switch 62. The advantages of using a spring plate 63 to provide the reset force to the operating element 54 are as follows: First, when the operating element 54 is not activated by the first detection switch 62, it will be supported by the spring plate 63 and will not be loose under the elastic force of the spring plate 63; Second, compared with using a spring to provide the reset force, the spring plate 63 will not hinder the rotation of the operating element 54, allowing the operating element 54 to continue rotating when pressed; Third, the spring plate 63 occupies less space and is suitable for the narrow space within the knob assembly 5; Fourth, the elastic force provided by the spring plate 63 is relatively small, which has little impact on the pressing feel of the operating element 54.

[0140] In another embodiment, such as Figure 18As shown, a bearing 5431 is installed at the end of the contact part 59. The contact part 59 is inserted into the inner ring of the bearing 5431. A spring mounting bracket 5432 is sleeved on the outer ring of the bearing 5431. A first spring 5433 is disposed between the spring mounting bracket 5432 and the first circuit board 6. When the operating member 54 moves toward the first circuit board 6 in response to the driving force, the contact part 59 drives the bearing 5431 and the spring mounting bracket 5432 to move toward the first circuit board 6, pressing against the first spring 5433 to produce elastic deformation. When the driving force is removed, the operating member 54 returns to its initial position under the elastic force of the first spring 5433. In this embodiment, the first spring 5433 provides the operating member 54 with a stable reset force and preload force, so that the operating member 54 will not be loose. The bearing 5431 ensures that the operating member 54 rotates smoothly, further improving the control feel of the operating member 54. Furthermore, the end of the contact portion 59 is provided with a first annular step, which abuts against the upper surface of the inner ring of the bearing 5431 to limit the upward displacement of the bearing 5431. The spring mounting bracket 5432 is provided with a second annular step facing the bearing 5431, which abuts against the lower surface of the outer ring of the bearing 5431 to limit the downward displacement of the bearing 5431. The spring mounting bracket 5432 is provided with a third annular step facing the spring, which abuts against the upper surface of the first spring 5433 and is sleeved on the outside of the first spring 5433 to limit the first spring 5433 in the horizontal direction. Under the elastic force of the first spring 5433, the bearing 5431 and the spring mounting bracket 5432 abut against the end of the contact portion 59.

[0141] Furthermore, such as Figure 14 , Figure 17 and Figure 18 As shown, the distance between the operating member 54 and the trigger member 51 in the first direction is set to be greater than or equal to 0.5 mm. The first direction is the direction in which the trigger member 51 is away from the first circuit board 6, so that the operating member 54 has enough pressing space and the first detection switch 62 can be successfully triggered when the user presses the edge of the operating member 54.

[0142] In another embodiment, such as Figure 19 and Figure 20As shown, the operating member 54 has a ring-shaped structure, with a ring-shaped contact portion 59 protruding from its end face facing the first circuit board 6. At least three first detection switches 62 are evenly distributed along the contact portion 59 at corresponding positions on the first circuit board 6, with the contact portion 59 abutting against the first detection switches 62. The three first detection switches 62 are arranged in a ring, their positions corresponding to the ring-shaped contact portion 59. The operating member 54 is sleeved on the outside of the first socket portion 513 and can slide up and down relative to the first socket portion 513. The specific structure has been described in detail above and will not be repeated here. The relatively large gap between the operating member 54 and the first socket portion 513 allows the operating member 54 to tilt slightly, thereby triggering only one of the first detection switches 62. The solution provided in this embodiment enables omnidirectional pressing of the operating member 54, meaning that pressing the edge of the operating member 54 can also trigger the first detection switch 62, improving the handling feel. Furthermore, the first latching unit 5131 includes at least one first latching groove (not shown in the figure) extending toward the first circuit board 6, and the second latching unit 541 includes at least one first latch (not shown in the figure). The first latch can latch onto the first latching groove and slide along the first latching groove. When the operating member 54 moves toward the first circuit board 6 in response to the driving force, the first latch slides along the first latching groove, and the abutting part 59 presses against and triggers the first detection switch 62. When the driving force is removed, the operating member 54 returns to its initial position under the elastic force of the first detection switch 62.

[0143] Furthermore, such as Figure 19 and Figure 20As shown, the knob assembly 5 further includes: a display screen 55, electrically connected to the first circuit board 6; a display screen bracket 56, one end of which is fixedly connected to the second sleeve portion 522, and the other end of which is fitted with the display screen 55; an operating sleeve 57, sleeved on the outside of the operating member 54, and capable of driving the operating member 54 to rotate; an abutment ring extending outward from the side of the operating member 54, abutting against the lower end of the operating sleeve 57, so that the operating sleeve 57 can drive the operating member 54 to move towards the first circuit board 6; a light-transmitting sheet 58, covering the operating sleeve 57, and forming a knob internal space with the operating sleeve 57, the display screen 55 being housed in the knob internal space, which can improve the dustproof and moisture-proof performance of the knob assembly 5. The display screen bracket 56 is snapped into the second sleeve portion 522 via a buckle, and the operating member 54 is snapped into the first sleeve portion 513 via a first buckle 5411. The inner wall of the operating sleeve 57 is provided with a positioning groove (not shown in the figure) along a first direction, and the outer side of the operating member 54 is provided with a positioning rib (not shown in the figure) that cooperates with the positioning groove. The positioning rib is inserted into the positioning groove so that the operating sleeve 57 drives the operating member 54 to rotate. Furthermore, the light-transmitting sheet 58 is bonded to the operating sleeve 57 and is sealed to it, further improving the dustproof and moisture-proof performance of the knob assembly 5. Furthermore, a pressing gap is provided between the light-transmitting sheet 58 and the display screen 55 to provide space for the operating member 54 to press the first detection switch 62. The light-transmitting sheet 58 is made of transparent material, allowing the content displayed on the display screen 55 to be shown to the outside.

[0144] In another embodiment, such as Figure 21 and Figure 22As shown, the rotary switch 1 further includes: a first housing 7, at least partially parallel to the first circuit board 6; the first circuit board 6 is slidably connected to the first housing 7, allowing the first circuit board 6 to move closer to or away from the first housing 7; a first detection switch 62 is welded to the side of the first circuit board 6 facing away from the knob assembly 5, and the first detection switch 62 abuts against the first housing 7; the knob assembly 5 responds to a driving force by pressing against the first circuit board 6, causing the first circuit board 6 to move closer to the first housing 7, causing the first housing 7 to press against and trigger the first detection switch 62. The first circuit board 6 is slidably connected to the first housing 7, which can be a shaft-hole type insertion, a slider-rail type connection, or other slidable connection. The first circuit board 6 is movable relative to the first housing 7, and the sensing element 52 of the knob assembly 5 is welded to the side facing away from the first housing 7. The first housing 7 has a trigger boss at a corresponding position of the first detection switch 62, and the trigger boss abuts against the first detection switch 62. The knob assembly 5 moves the first circuit board 6 closer to the first housing 7, and the trigger boss presses against and triggers the first detection switch 62. Furthermore, a second circuit board 73 is disposed between the first housing 7 and the first circuit board 6. The second circuit board 73 is electrically connected to the first circuit board 6. The first circuit board 6 transmits the signal from the first detection switch 62 to the second circuit board 73, and the second circuit board 73 processes the signal. In the solution provided in this embodiment, the first circuit board 6 moves downward along with the knob assembly 5 to trigger the first detection element on the lower surface of the first circuit board 6, so that the parts of the knob assembly 5 do not undergo relative displacement in the first direction, the frictional force of pressing the knob assembly 5 is smaller, and the internal structure of the knob assembly 5 can be designed to be more compact.

[0145] Furthermore, the first housing 7 has a first pin 71 protruding towards the first circuit board 6. The first pin 71 is perpendicular to the first circuit board 6. The first circuit board 6 has a first pin hole 64 at a corresponding position of the first pin 71. The first pin hole 64 can move along the first pin 71 to achieve a sliding connection between the first circuit board 6 and the first housing 7. Furthermore, a middle shell 74 is provided above the first circuit board 6. The middle shell 74 is fixedly connected to the first housing 7 and abuts against the upper surface of the first circuit board 6 to restrict the upward movement of the first circuit board 6.

[0146] Furthermore, such as Figure 21 and Figure 22As shown, the knob assembly 5 further includes: a display screen 55, electrically connected to the first circuit board 6; a display screen bracket 56, one end of which is snapped into the second sleeve portion 522, and the other end of which is mounted on the display screen 55; an operating member 54, sleeved on the outside of the first sleeve portion 513 and snapped into the first sleeve portion 513; an operating sleeve 57, sleeved on the outside of the operating member 54 and fixedly connected to the operating member 54; and a light-transmitting sheet 58, covering the operating sleeve 57 and forming a knob internal space with the operating sleeve 57, wherein the display screen 55 is housed in the knob internal space. The light-transmitting sheet 58 is made of transparent material and is used to display the content displayed on the screen 55 to the outside. The screen 55 is bonded to the operating sleeve 57 and is sealed to the operating sleeve 57. The screen 55 and the screen bracket 56 are clamped and fixed between the light-transmitting sheet 58 and the operating component 54, so that the operating sleeve 57, the operating component 54, the screen bracket 56 and the screen 55 form a whole. It is snapped with the sensing component 52 and the trigger component 51. Each part limits each other, reducing the limiting structure. Moreover, the light-transmitting sheet 58 can be closer to the screen 55, and the external display effect is better.

[0147] In some embodiments, such as Figures 23-29 As shown, the knob assembly 5 includes: a display screen 55, electrically connected to the first circuit board 6; and a display screen bracket 56, one end of which is inserted into the second socket portion 522, and the other end of which is used to mount the display screen 55. Further, the display screen bracket 56 includes a support portion 561 and a insertion portion 562. The insertion portion 562 is inserted into the second socket portion 522 and its rotational freedom is restricted by the second socket portion 522. The support portion 561 is provided with a mounting position adapted to the shape of the display screen 55 for mounting the display screen 55. The display screen 55 is connected to the first circuit board 6 via a ribbon cable 553. The function of the display screen bracket 56 is to fix the display screen 55 to the sensing element 52, ensuring that the display screen 55 remains stationary when the trigger element 51 rotates, and preventing the ribbon cable 553 from breaking.

[0148] Furthermore, such as Figure 26 and Figure 27As shown, the side wall of the insertion part 562 is provided with a third snap-fit ​​unit 5621, and the inner wall of the second socket part 522 is provided with a fourth snap-fit ​​unit 5221 adapted to the third snap-fit ​​unit 5621. When the insertion part 562 is inserted into the second socket part 522, the third snap-fit ​​unit 5621 snaps into the fourth snap-fit ​​unit 5221. Further, the third snap-fit ​​unit 5621 includes at least one second buckle 5623, and the fourth snap-fit ​​unit 5221 includes at least one second snap-fit ​​groove 5223. The second buckle 5623 snaps into the second snap-fit ​​groove 5223 to limit the extreme position of the display screen bracket 56 moving towards the first direction. The lower surface of the bearing part 561 abuts against the upper end of the sensing element 52 to limit the extreme position of the display screen bracket 56 moving away from the first circuit board 6.

[0149] Furthermore, such as Figure 27 As shown, the inner wall of the second socket 522 is provided with at least one third positioning groove (not shown in the figure), and the outer wall of the insertion part 562 is provided with a third positioning rib 5622 adapted to the third positioning groove. The extension direction of the third positioning rib 5622 is parallel to the first direction, and the third positioning rib 5622 is inserted into the third positioning groove to limit the rotation of the display screen bracket 56. The first direction is the direction in which the trigger 51 is away from the first circuit board 6. Further, the shape of the display screen 55 is polygonal. The side wall of the mounting position is surrounded by multiple limiting parts 5611, which abut against the side of the display screen 55 to limit the display screen 55. Specifically, the limiting part 5611 is a limiting rib. One side of the display screen 55 is provided with a display screen anti-fooling protrusion 551, and the corresponding limiting part 5611 is provided with an anti-fooling recess 5612. The anti-fooling recess 5612 can accommodate the anti-fooling protrusion and is used to prevent fooling when installing the display screen 55. Compared to a circular display screen 55, a polygonal display screen 55 is easier to position in the horizontal direction, avoids changes in the phase angle of the display screen 55, and is also less expensive.

[0150] Furthermore, such as Figure 27As shown, a locking ring 552 is provided above the display screen 55, covering the display screen 55. The locking ring 552 is fixedly connected to the display screen bracket 56 to fix the display screen 55 to the display screen bracket 56. The fixing connection between the locking ring 552 and the display screen bracket 56 can be achieved by snap-fitting, fastening, adhesive, screw connection, or other methods. The first function of the locking ring 552 is to fix the display screen 55. The second function is to shield the corners of the display screen 55. Since a polygonal display screen 55 is used, to accommodate the circular knob, the display area is limited to a circle. The locking ring 552 is used to shield the corners of the polygonal display screen 55, exposing only the display screen 55 within the inner circle of the locking ring 552 to provide a better display effect. Additionally, a ring of light-emitting units 65 is provided around the sensor 52 on the surface of the first circuit board 6. The locking ring 552 has a light-shielding effect, preventing the light emitted by the light-emitting units 65 from passing through the sides of the polygonal display screen 55.

[0151] Furthermore, the outer edge of the locking ring 552 extends toward the display screen bracket 56 with multiple latches 5521. The side of the display screen bracket 56 is provided with a fastening protrusion at the corresponding position of the latches 5521. The latches 5521 fasten to the fastening protrusions to achieve a fixed connection between the display screen 55 and the display screen bracket 56.

[0152] Furthermore, the sides of the display screen 55 are coated with a light-shielding layer. Since the display screen 55 is a polygonal display screen and is made of glass, there is a risk of light leakage in the middle of the side of the display screen 55. Blackening the sides of the display screen 55 can prevent the light emitted by the light-emitting unit 65 from leaking out from the sides of the display screen 55.

[0153] In some embodiments, such as Figures 23-32 As shown, the knob assembly 5 further includes an operating member 54 and an operating sleeve 57. The operating member 54 is sleeved on the outside of the first sleeve portion 513 and engages with it. The operating sleeve 57 is sleeved on the outside of the operating member 54 and is positioned to engage with it, allowing the operating sleeve 57 to drive the first sleeve portion 513 to rotate via the operating member 54. The operating sleeve 57 receives the user's driving force, and the operating member 54 transmits this driving force to the trigger member 51, causing the trigger member 51 to rotate around the sensing member 52, thereby generating the pulse signal. Furthermore, the operating sleeve 57 is integrally formed from metal, which improves the tactile feel and aesthetics of the knob assembly 5.

[0154] Furthermore, such as Figure 24 and Figure 23As shown, the side wall of the first sleeve portion 513 is provided with at least one first snap-fit ​​groove 5132, and the inner wall of the operating member 54 is provided with a first buckle 5411 adapted to the first snap-fit ​​groove 5132. When the operating member 54 is sleeved on the first sleeve portion 513, the first buckle 5411 snaps into the first snap-fit ​​groove 5132 to achieve the snap-fit ​​engagement. Specifically, the outer wall of the first sleeve portion 513 is evenly distributed with three first snap-fit ​​grooves 5132, which extend toward the first circuit board 6. The inner wall of the operating member 54 is correspondingly provided with three first buckles 5411, which snap into the first snap-fit ​​grooves 5132, allowing the operating member 54 to perform a pressing movement along the first snap-fit ​​grooves 5132. Furthermore, the outer wall of the first socket 513 is provided with a first positioning part 5133, and the inner wall of the operating member 54 is provided with a second positioning part 542 adapted to the first positioning part 5133. When the operating member 54 is sleeved on the first socket 513, the second positioning part 542 and the first positioning part 5133 are positioned and engaged, so that the operating member 54 can drive the trigger member 51 to rotate. Using the positioning engagement of the first positioning part 5133 and the second positioning part 542 can reduce the rotational clearance between the operating member 54 and the first socket 513, making the operation of the knob assembly 5 more responsive. Furthermore, the first positioning part 5133 includes at least one first positioning groove 5134, and the second positioning part 542 includes at least one first positioning rib. The first positioning rib is inserted into the first positioning groove 5134 to achieve the positioning engagement of the second positioning part 542 and the first positioning part 5133. In a specific embodiment, the outer wall of the first sleeve portion 513 is evenly provided with three first positioning grooves 5134. The first positioning grooves 5134 extend downward from the upper end of the first sleeve portion 513. The operating member 54 is provided with three first positioning ribs. The first positioning ribs are in clearance fit with the first positioning grooves 5134, so that the operating member 54 can move along the first positioning grooves 5134.

[0155] Furthermore, such as Figures 23-28As shown, the outer wall of the operating member 54 is provided with a third positioning part 544, and the inner wall of the operating sleeve 57 is correspondingly provided with a fourth positioning part 571. The third positioning part 544 and the fourth positioning part 571 are positioned and engaged, so that the operating sleeve 57 can drive the operating member 54 to rotate. Further, the third positioning part 544 includes at least one second positioning rib, and the fourth positioning part 571 includes at least one second positioning groove. The second positioning rib is inserted into the second positioning groove to achieve the positioning engagement between the third positioning part 544 and the fourth positioning part 571. Further, the outer wall of the operating member 54 is provided with an operating member latch 545, and the operating sleeve 57 is provided with a concave annular groove 572 around the corresponding position of the operating member latch 545. The operating member latch 545 is engaged with the concave annular groove 572 to limit the axial displacement of the operating sleeve 57.

[0156] Furthermore, such as Figures 30-32 as well as Figures 23-32 As shown, a light-transmitting sheet 58 is provided on the side of the display screen 55 away from the first circuit board 6 to display the content displayed on the display screen 55 to the outside. The light-transmitting sheet 58 is sealed to the operating sleeve 57. The light-transmitting sheet 58 covers the operating sleeve 57 and forms an internal space for the knob with the operating sleeve 57. The display screen 55 is housed in the internal space of the knob. The sealed connection between the light-transmitting sheet 58 and the operating sleeve 57 can improve the dustproof and moisture-proof performance of the knob assembly 5.

[0157] In some embodiments, such as Figures 23-27 As shown, the distance between the display screen 55 and the light-transmitting sheet 58 is less than or equal to 2mm, so as to improve the display effect of the display screen 55.

[0158] Furthermore, the display screen 55 is polygonal in shape, and a light-shielding film is adhered to the inner side of the light-transmitting sheet 58, with the light-shielding film surrounding the edge of the light-transmitting sheet 58. The area enclosed by the inner edge of the light-shielding film projects a first projection pattern onto the display screen 55, and the first projection pattern is contained within the display screen 55. Specifically, a ring of light-emitting units 65 is arranged around the sensor 52 on the surface of the first circuit board 6. Due to the use of a polygonal display screen 55, there is a risk of light leakage at the middle of the side of the display screen 55. The light-shielding film adhered to the inner side of the light-transmitting sheet 58 can prevent light leakage. Moreover, the fact that the first projection pattern is contained within the display screen 55 can be understood as the light-shielding film only exposing the display screen 55 within the inner edge range of the light-shielding film, in order to provide a better display effect.

[0159] In one specific embodiment, such as Figure 45 and Figure 24As shown, the rotary switch 1 does not have the first detection switch 62, meaning the rotary assembly 5 can only respond to rotation operations, not pressing operations. The display screen 55 is fixedly connected to the second socket 522 of the sensing element 52 via the display screen bracket 56. The rotary switch 1 provided in this embodiment has four buttons (e.g., ...). Figure 45 and Figures 28-29 Since the number of buttons is sufficient for most usage scenarios, the pressing function of the knob assembly 5 is omitted in this embodiment, which simplifies the structure of the knob assembly 5, thereby reducing the difficulty of processing and assembly, improving the tightness of the fit between the parts of the knob assembly 5, making its rotation feel better, and improving its dustproof and moisture-proof performance.

[0160] In other embodiments, such as Figure 28 As shown, the display screen bracket 56 has an abutment portion 59 at one end facing the first circuit board 6, and the first circuit board 6 has a first detection switch 62 at a corresponding position of the abutment portion 59. The display screen bracket 56 is configured to move toward the first circuit board 6 in response to a driving force, thereby causing the abutment portion 59 to press against the first detection switch 62. The configuration of the display screen bracket 56 to move toward the first circuit board 6 in response to a driving force can be understood as the display screen bracket 56 being directly or indirectly connected to the first circuit board 6 via a sliding joint, allowing the display screen bracket 56 to move toward or away from the first circuit board 6.

[0161] In one specific embodiment, such as Figure 29As shown, the operating member 54 is sleeved on the first sleeve portion 513 and can slide axially relative to the first sleeve portion 513; the operating sleeve 57 is sleeved on the outside of the operating member 54 and is positioned and engaged with the operating member 54, so that the operating sleeve 57 can drive the first sleeve portion 513 to rotate through the operating member 54; at least a portion of the operating sleeve 57 abuts against the upper end of the display screen bracket 56, so that the operating sleeve 57 can move towards the first circuit board 6 in response to the driving force, thereby driving the display screen bracket 56 to trigger the first detection switch 62. Further, the operating sleeve 57 has a pressure transmission part 573 protruding towards the support portion 561 of the display screen bracket 56, and the pressure transmission part 573 abuts against the upper surface of the support portion 561; the operating sleeve 57 transmits the driving force to the support portion 561 through the pressure transmission part 573, driving the display screen bracket 56 to move towards the first circuit board 6. Specifically, the pressure transmission part 573 is an annular protrusion extending inward from the inner wall of the operating sleeve 57. Further, a light-transmitting sheet 58 is provided on the side of the display screen 55 away from the first circuit board 6 to display the content shown on the display screen 55. The light-transmitting sheet 58 is fixedly and sealed to the operating sleeve 57, allowing the light-transmitting sheet 58 to respond to the driving force and move the operating sleeve 57 toward the first circuit board 6, thereby triggering the first detection switch 62. When the user presses the light-transmitting sheet 58, the driving force provided by the user is transmitted through the light-transmitting sheet 58 to the operating sleeve 57, and then to the display screen bracket 56, causing the display screen bracket 56 to move toward the first circuit board 6, thereby triggering the first detection switch 62. When the user rotates the operating sleeve 57, the rotational force is transmitted from the operating sleeve 57 to the operating member 54, causing the operating member 54 to drive the trigger member 51 to rotate, thereby causing the sensing member 52 to output a pulse signal. During this process, the display screen bracket 56 remains stationary. In this embodiment, the display screen 55 is clamped between the light-transmitting sheet 58 and the display screen bracket 56, so that the light-transmitting sheet 58 is closer to the display screen 55, resulting in a better display effect. Moreover, the light-transmitting sheet 58 is sealed to the operating sleeve 57, which improves the dustproof and moisture-proof performance of the knob assembly 5.

[0162] In another embodiment, such as Figure 29As shown, the inner wall of the second socket 522 extends toward the first circuit board 6 and is provided with a second latching groove 5223. The side wall of the insertion part 562 is provided with a second buckle 5623 adapted to the second latching groove 5223. The second buckle 5623 can slide along the second latching groove 5223. When the display bracket 56 moves toward the first circuit board 6 in response to the driving force, the second buckle 5623 slides along the second latching groove 5223, and the abutment part 59 presses against and triggers the first detection switch 62. Further, the second latching groove 5223 extends from the middle position of the inner wall of the second socket 522 toward the first circuit board 6 to limit the extreme position of the insertion part 562 moving toward the first direction, which is the direction in which the trigger 51 moves away from the first circuit board 6. The first direction has already been defined. Figure 29 The winning bid is complete. Further, a light-transmitting sheet 58 is provided on the side of the display screen 55 away from the first circuit board 6 to display the content shown on the display screen 55. The light-transmitting sheet 58 is adhered to the support portion 561 of the display screen bracket 56. In this embodiment, the display screen 55 is clamped between the light-transmitting sheet 58 and the display screen bracket 56. The light-transmitting sheet 58 is fixedly connected to the display screen bracket 56. The user can press the light-transmitting sheet 58 to move the display screen bracket 56 downwards, thereby triggering the first detection switch 62.

[0163] Furthermore, such as Figure 29 As shown, the knob assembly 5 also includes an operating member 54, which is sleeved on the outside of the first sleeve portion 513 and can drive the first sleeve portion 513 to rotate. The operating member 54 has a display screen receiving groove 546 facing the support portion 561, and the display screen receiving groove 546 encloses the support portion 561. A pressing gap is provided between the lower surface of the support portion 561 and the bottom of the display screen receiving groove 546, and a rotation gap is provided between the side of the support portion 561 and the side of the display screen receiving groove 546, so that the display screen bracket 56 and the operating member 54 are not linked. When the user presses the light-transmitting sheet 58, the light-transmitting sheet 58 drives the display screen bracket 56 to move downwards, thereby triggering the first detection switch 62. When the user rotates the operating member 54, the operating member 54 drives the first sleeve portion 513 to rotate, thereby the sensor 52 outputs the pulse signal. The pressing and rotating movements of the knob assembly 5 provided in this embodiment do not interfere with each other, resulting in less friction and smoother operation.

[0164] Furthermore, such as Figures 30-33As shown, the support portion 561 of the display screen bracket 56 extends toward the first circuit board 6 and is provided with the abutting portion 59. A second spring 5613 is provided between the support portion 561 and the first circuit board 6 to provide a restoring force to the display screen bracket 56. The second spring 5613 is sleeved on the abutting portion 59. When the display screen bracket 56 moves toward the first circuit board 6, the support portion 561 presses against the second spring 5613 and undergoes elastic deformation.

[0165] In some embodiments, such as Figure 30 As shown, Figure 31 This is an exploded view of a rotary wireless switch with a display screen (55). Figure 32 This is a schematic diagram of the installation of a knob assembly with a display screen 55. Figure 33 This is a cross-sectional perspective view of a rotary wall switch with a display screen 55. Figures 30-33 This is a schematic diagram of a rotary switch 1 without a display screen 55. Figures 30-33 The rotary switch 1 provided by the present invention further includes: a second housing 72, the second housing 72 having a second insertion portion 721 protruding towards the rotary assembly 5, the rotary assembly 5 being sleeved on the second insertion portion 721 via a second sleeve portion 522, allowing the rotary assembly 5 to slide towards the second housing 72; simultaneously, the second sleeve portion 522 being engaged with the second insertion portion 721, restricting the horizontal rotation of the second sleeve portion 522 by the second insertion portion 721; a second circuit board 73, fixed relative to the second housing 72 and electrically connected to the first circuit board 6, the second circuit board 73 having a first detection switch 62 facing the first circuit board 6, the rotary assembly 5 pressing against and triggering the first detection switch 62 when the rotary assembly 5 slides towards the second housing 72; the rotary assembly 5 further includes an operating member 54, sleeved on the outside of the first sleeve portion 513 and engaged with the first sleeve portion 513, the operating member 54 being able to drive the first sleeve portion 513 to rotate. When the user rotates the operating element 54, the operating element 54 drives the first socket portion 513 to rotate, thereby causing the sensing element 52 to output a pulse signal. Figures 30-33 In the illustrated embodiment, the sensor 52 is soldered to the first circuit board 6, that is, the first circuit board 6 is indirectly connected to the second plug-in portion 721 of the second housing 72 through the sensor 52. At the same time, the first circuit board 6 is also indirectly connected to the operating member 54 through the sensor 52 and the trigger 51. Thus, the first circuit board 6 and the knob assembly 5 are combined to form a knob module, which is connected to the second plug-in portion 721. When the operator pulls the knob assembly 5 outward, the knob assembly 5 together with the first circuit board 6 can be removed from the second plug-in portion 721. The operator can quickly replace different knob modules according to the different functional requirements of the knob switch 1.

[0166] It should be noted that in these embodiments, such as Figures 30-33 As shown, the sensor 52, the trigger 51 and the first circuit board 6 are mounted upside down as a whole on the knob assembly 5, that is, the first circuit board 6 is mounted above the sensor 52 and the opening of the second socket 522 faces downward, so that the knob assembly 5 is inserted into the second plug-in part 721 from top to bottom.

[0167] Furthermore, such as Figure 27 As shown, the inner wall of the second socket 522 is provided with at least one third locking groove (not shown in the figure), and the outer wall of the second insertion part 721 is provided with at least one third latch (not shown in the figure). The third latch engages with the third locking groove to limit the extreme position of the operating member 54 moving towards the first direction, which is the direction in which the trigger member 51 moves away from the first circuit board 6. The length of the third locking groove (not shown in the figure) is adapted to the third latch (not shown in the figure), so that the second socket 522 can slide axially relative to the second insertion part 721. The structure of the third locking groove and the third latch is similar to... Figures 30-33 The structures in the embodiments are the same, the only difference being the opposite direction, which will not be described in detail here. Specifically, the length of the first snap-fit ​​groove 5132 is adapted to the first buckle 5411, the first snap-fit ​​groove 5132 extends toward the first circuit board 6, and its length is greater than the head length of the first buckle 5411, so that the head of the first buckle 5411 can slide along the first snap-fit ​​groove 5132, and then the knob assembly 5 can slide toward the second housing 72.

[0168] Furthermore, such as Figure 27 As shown, the inner wall of the second socket 522 is provided with at least one third positioning groove 5222 (not shown in the figure), and the outer wall of the second insertion part 721 is provided with a third positioning rib 5622 (not shown in the figure) that matches the third positioning groove 5222. When the second insertion part 721 is inserted into the second socket 522, the third positioning rib 5622 is inserted into the third positioning groove 5222, so that the second socket 522 is restricted from horizontal rotation by the second insertion part 721. The structure of the third positioning groove 5222 and the third positioning rib 5622 is similar to... Figures 30-33 The structures in the embodiments are the same, the only difference being that the directions are opposite, which will not be repeated here. In this embodiment, the cooperation of the third positioning groove 5222 and the third positioning rib 5622 makes the horizontal rotation of the second sleeve part 522 more stable, so that the rotation feel of the knob assembly 5 will not be loose.

[0169] Furthermore, such as Figure 24As shown, the side wall of the first sleeve portion 513 is provided with at least one first snap-fit ​​groove 5132 (not shown in the figure), and the inner wall of the operating member 54 is provided with at least one first buckle 5411 (not shown in the figure). The first buckle 5411 snaps into the first snap-fit ​​groove 5132 to snap the operating member 54 into the first sleeve portion 513. Further, the outer wall of the first sleeve portion 513 is provided with a first positioning portion 5133, and the inner wall of the operating member 54 is provided with a second positioning portion 542 that is adapted to the first positioning portion 5133. When the operating member 54 is sleeved on the first sleeve portion 513, the second positioning portion 542 and the first positioning portion 5133 are positioned and engaged, so that the operating member 54 can drive the trigger member 51 to rotate. Furthermore, the first positioning part 5133 includes at least one first positioning groove 5134 (not shown in the figure), and the second positioning part 542 includes at least one first positioning rib (not shown in the figure). The first positioning rib is inserted into the first positioning groove 5134 to achieve positioning engagement between the second positioning part 542 and the first positioning part 5133. The structures of the first snap-fit ​​groove 5132, the first snap-fit ​​5411, the first positioning groove 5134, and the first positioning rib are similar to... Figures 30-32 The structures in the embodiments are the same, the only difference being that the directions are reversed, which will not be described again here.

[0170] In some embodiments, such as Figure 30 As shown, Figure 31 This is an exploded view of a rotary wireless switch with a display screen (55). Figure 32 This is a schematic diagram of the installation of a knob assembly with a display screen 55. Figures 30-32 A cross-sectional perspective view of a rotary wall switch with a display screen 55, as shown below. Figures 30-32As shown, the knob assembly 5 further includes: a display screen 55, disposed on the side of the first circuit board 6 facing away from the second housing 72, the display screen 55 being electrically connected to the first circuit board 6; and a display screen bracket 56, fixedly connected to the first circuit board 6, the display screen bracket 56 having a mounting position adapted to the shape of the display screen 55 for mounting the display screen 55. Further, the display screen bracket 56 extends toward the second circuit board 73 with a contact portion 59, and the second circuit board 73 has the first detection switch 62 soldered at a corresponding position on the contact portion 59. When the knob assembly 5 slides toward the second housing 72, the contact portion 59 presses against and triggers the first detection switch 62. The first circuit board 6 is fixedly connected to the side of the display screen bracket 56 facing the second circuit board 73, the first circuit board 6 and the second circuit board 73 being located at opposite ends of the second insertion portion 721. The first circuit board 6 has a through hole for the contact portion 59 at a corresponding position on the contact portion 59, the contact portion 59 passing through the through hole and the second insertion portion 721, and positioned above the first detection switch 62. Specifically, the lower surface of the display screen bracket 56 is provided with three threaded connecting posts 563, and the first circuit board 6 is provided with three connecting through holes 661. The connecting through holes 661 are sleeved on the threaded connecting posts 563 and locked by screws (not shown in the figure). The operating member 54 can respond to the pressing pressure to drive the trigger member 51 to move downward. The trigger member 51 drives the first circuit board 6 to move, and then the first circuit board 6 drives the display screen bracket 56 to move downward, so that the contact part 59 presses down against the first detection switch 62.

[0171] Furthermore, such as Figure 25 As shown, the knob assembly 5 further includes an operating sleeve 57, sleeved on the outside of the operating member 54. The outer wall of the operating member 54 is provided with a third positioning part 544 (not shown in the figure), and the inner wall of the operating sleeve 57 is correspondingly provided with a fourth positioning part 571 (not shown in the figure). The third positioning part 544 and the fourth positioning part 571 are positioned and engaged, allowing the operating sleeve 57 to drive the operating member 54 to rotate. Further, the third positioning part 544 includes at least one second positioning rib (not shown in the figure), and the fourth positioning part 571 includes at least one second positioning groove (not shown in the figure). The second positioning rib is inserted into the second positioning groove to achieve the positioning engagement of the third positioning part 544 and the fourth positioning part 571. The structure of the operating sleeve 57, the second positioning rib, and the second positioning groove is similar to... Figure 33The structure is the same in the embodiments and will not be described again here. The operating sleeve 57 is made of metal. The function of the operating sleeve 57 is to improve the surface strength of the operating component 54, enhance its wear resistance, and improve the operating feel of the operating component 54. Further, a light-transmitting sheet 58 is provided on the side of the display screen 55 away from the first circuit board 6 to display the content displayed on the display screen 55 to the outside. The light-transmitting sheet 58 is sealed to the operating sleeve 57. The light-transmitting sheet 58 and the operating sleeve 57 form a knob internal space, and the display screen 55 and the first circuit board 6 are housed in the knob internal space. In this embodiment, the operating component 54, trigger component 51, sensor component 52, display screen 55, display screen bracket 56, operating sleeve 57 and first circuit board 6 are combined into a knob module. This module can be quickly installed into the second plug-in portion 721 of the second housing 72, and the operator can also quickly remove the knob module from the second plug-in portion 721, which improves assembly efficiency and improves the part interchangeability between different models of knob switches 1, reducing mold costs.

[0172] In another embodiment, such as Figure 31 As shown, compared to Figures 1-50 The embodiment shown differs in that a display screen 55 is not provided. The operating member 54 extends toward the second circuit board 73 and has a contact portion 59. The second circuit board 73 has a first detection switch 62 at a corresponding position on the contact portion 59. When the knob assembly 5 slides toward the second housing 72, the operating member 54 moves toward the first circuit board 6, causing the contact portion 59 to trigger the first detection switch 62. In this embodiment, the operating member 54, trigger member 51, sensing member 52, and first circuit board 6 are combined into another knob module. This module can be quickly installed into the second insertion portion 721 of the second housing 72 and can be quickly removed and replaced with other modules, improving assembly efficiency. At the same time, it improves the part interchangeability between different models of knob switches 1 and reduces mold costs. Furthermore, the operating member 54 is constructed as a hat-like structure with a closed first end and an open second end. The contact portion 59 extends from the center of the first end of the operating member 54. The first circuit board 6 is placed inside the operating member 54. The contact portion 59 passes through the first circuit board 6 and the second socket portion 522 and is positioned above the first detection switch 62. The first end of the operating member 54 is the end away from the first circuit board 6, and the second end is the end facing the first circuit board 6.

[0173] In some embodiments, such as Figure 35As shown, the rotary switch 1 further includes: a middle shell 74, on which the first circuit board 6 is fixedly mounted; and a bottom shell 76, detachably connected to the middle shell 74. The bottom shell 76 and the first shell 7 are the same shell, and the middle shell 74 and the second shell 72 are the same shell. The detachable connection between the bottom shell 76 and the middle shell 74 can be a snap-fit, magnetic connection, screw connection, or other detachable connection method. In a preferred embodiment, such as... Figure 34 As shown, the bottom shell 76 and the middle shell 74 are connected by snap-fit. The first circuit board 6 is fixedly installed on the middle shell 74 by snap-fit, screw connection, adhesive, or other fixed connection methods. In a preferred embodiment, such as... Figures 1-50 As shown, the first circuit board 6 is fastened to the middle shell 74 by screws.

[0174] Further, please refer to Figures 38-44 ,exist Figure 39 In this configuration, the first circuit board 6 is provided with multiple light-emitting units 65, and a light-diffusing cover 8 is mounted on the middle shell 74 at a position opposite to the light-emitting units 65. The light emitted by the light-emitting units 65 is diffused outward after being diffused by the light-diffusing cover 8. In a specific embodiment, the light-diffusing cover 8 is positioned directly above the light-emitting units 65. Further, as... Figure 38As shown, the uniform light mask 8 includes an incident light area 81 and an exit light area 82. The light emitted by the light-emitting unit 65 illuminates the uniform light mask 8, forming the incident light area 81 in the illuminated area of ​​the uniform light mask 8. The area of ​​the uniform light mask 8 that emits light outward constitutes the exit light area 82. The projection pattern of the exit light area 82 onto the first circuit board 6 is set as a first projection pattern, and the projection pattern of the exit light area 82 onto the first circuit board 6 is set as a second projection pattern. The first projection pattern and the second projection pattern do not coincide. In existing uniform light structures, the incident light area 81 and the exit light area 82 of the uniform light mask 8 are generally positioned directly opposite the light-emitting unit 65. If the uniform light space is insufficient, the light emitted by the light-emitting unit 65 will not be evenly dispersed, resulting in poor uniform light effect. In the prior art, to solve this problem, the distance between the uniform light mask 8 and the light-emitting unit 65 is generally increased to give the light emitted by the light-emitting unit 65 enough space to mix. However, this makes the uniform light structure occupy a large volume and wastes space. The light-uniforming structure provided by this invention de-aligns the first and second projection patterns of the light-uniforming mask 8, causing the light-incident area 81 and light-exit area 82 of the light-uniforming mask 8 to be misaligned relative to the light-emitting unit 65. The light emitted by the light-emitting unit 65 is dispersed and deflected within the light-uniforming mask 8 before being emitted outwards. This effectively reduces the distance between the light-uniforming mask 8 and the light-emitting unit 65 while ensuring a uniform light effect. In some specific embodiments, the distance between the light-emitting unit 65 and the light-incident area 81 is set to be less than or equal to 9 mm. The light-uniforming mask structure designed in this invention can still ensure a good uniform light effect even when the uniform light space is small. Furthermore, setting the distance between the light-emitting unit 65 and the light-incident area 81 to be less than or equal to 9 mm can reduce the space occupied by the light-uniforming structure, thereby reducing the overall thickness of the device.

[0175] The device with a uniform light structure provided by this invention is not limited to the rotary switch 1. Any product that uses this uniform light structure is within the protection scope of this invention.

[0176] In some preferred embodiments, the light-emitting unit 65 may be an LED lamp or other electronic components capable of emitting light. Preferably, the light-emitting unit 65 is configured as a colored LED lamp.

[0177] Furthermore, such as Figure 39 , Figure 41 , Figure 44 and Figure 39As shown, the middle shell 74 has light-transmitting holes 741 at corresponding positions of each of the light-emitting units 65. The light-transmitting holes 741 are located between the light-emitting unit 65 and the light-diffusing cover 8. Light emitted by the light-emitting unit 65 passes through the light-transmitting holes 741 and illuminates the light-diffusing cover 8. Further, each of the light-transmitting holes 741 has a light-shielding portion 742 protruding towards the light-diffusing cover 8. The light-shielding portion 742 is located on the side of the light-transmitting hole 741 near the light-emitting area 82. A portion of the light emitted by the light-emitting unit 65 is blocked by the light-shielding portion 742 before illuminating the light-diffusing cover 8. The light-shielding portion 742 can be a strip-shaped protrusion, a combination of multiple protrusions forming the light-shielding portion 742, or other forms of protrusions used to block light. The function of the light-shielding part 742 is to block a portion of the light emitted by the light-emitting unit 65. After the light is dispersed within the light-diffusing cover 8, it exits from the light-emitting area 82 between the two light-transmitting holes 741, further enhancing the light-diffusing effect. By placing the light-shielding part 742 on the side of the light-transmitting hole 741 closer to the light-emitting area 82, the path of the light transmitted from the light-incident area 81 to the light-emitting area 82 of the light-diffusing cover 8 is blocked, further weakening the light directly opposite the light-emitting unit 65 and enhancing the light-diffusing effect. In a specific embodiment, the light-shielding part 742 is constructed as a light-shielding rib extending from the middle shell 74.

[0178] Furthermore, such as Figure 41 , Figure 44 and Figures 38-41 As shown, the light-diffusing cover 8 has a light-shielding portion receiving groove 83 recessed at the corresponding position of the light-shielding portion 742, for accommodating the light-shielding portion 742, so that a portion of the light incident on the light-incident area 81 of the light-diffusing cover 8 is blocked by the light-shielding portion 742 and then transmitted to the light-emitting area 82. The light-shielding portion 742 further weakens the light directly opposite the light-emitting unit 65, improving the light-diffusing effect. In addition, the shape of the light-shielding portion receiving groove 83 is adapted to the light-shielding portion 742, so that the lower surface of the light-diffusing cover 8 can fit against the middle shell 74.

[0179] In one specific embodiment, such as Figures 23-24 , Figure 39As shown, each of the light-emitting units 65 is arranged around the sensing element 52. The light-diffusing cover 8 is constructed as a ring structure adapted to the distribution shape of the light-emitting units 65. The light-diffusing cover 8 is at least partially located between the knob assembly 5 and the middle shell 74. The knob assembly 5 covers a portion of the surface of the light-diffusing cover 8, leaving another portion of the surface of the light-diffusing cover 8 exposed to form the light-emitting area 82. Further, the outer diameter of the light-diffusing cover 8 is larger than the outer diameter of the knob assembly 5, causing the side of the light-diffusing cover 8 to protrude from the side of the knob assembly 5, thereby forming the light-emitting area 82 on the outer side of the knob assembly 5. The side of the light-diffusing cover 8 protrudes from the side of the knob assembly 5, causing the outer ring of the knob assembly 5 to emit light. Combined with the flowing light effect of each light-emitting unit 65, the rotary switch 1 has a high-tech feel.

[0180] Furthermore, such as Figure 41 and Figure 38 As shown, the outer edge of the light-diffusing cover 8 extends towards the knob assembly 5, forming a surrounding portion 84 that surrounds the side of the knob assembly 5. The surrounding portion 84 improves the dustproof performance between the light-diffusing cover 8 and the knob assembly 5, while also enhancing the light-diffusing effect of the light-diffusing cover 8. Since the operating member 54 needs to be pressed to activate the first detection switch 62, a pressing gap is provided between the operating member 54 and the light-diffusing cover 8. The surrounding portion 84 can block this pressing gap, improving dustproof performance. Simultaneously, the surrounding portion 84 protrudes from the upper surface of the light-diffusing cover 8, making the cross-section of the light-diffusing cover 8 resemble an "N" shape. The light-emitting area 82 is located at the upper end of the surrounding portion 84, causing the light to diffuse outwards after multiple bends within the light-diffusing cover 8, thus improving the light-diffusing performance of the light-diffusing cover 8.

[0181] Furthermore, such as Figure 47 and Figure 43 As shown, the first circuit board 6 is fixedly installed on the inner side of the middle shell 74. The middle shell 74 has a middle shell through hole 743 at the corresponding position of the knob assembly 5. The knob assembly 5 passes through the middle shell through hole 743 and is partially placed on the outer side of the middle shell 74. The shape of the middle shell through hole 743 is adapted to the shape of the sensing element 52, and the middle shell through hole 743 is sleeved on the sensing element 52. Further, the edge of the middle shell through hole 743 is provided with a plurality of light-diffusing cover buckles 744 facing the light-diffusing cover 8. The light-diffusing cover buckles 744 are engaged with the light-diffusing cover 8, fixing the light-diffusing cover 8 to the middle shell 74.

[0182] In another embodiment, such as Figure 44 and Figure 45As shown, the light-emitting units 65 are arranged in an elongated shape, and the light-diffusing mask 8 is constructed as an elongated structure adapted to the distribution shape of the light-emitting units 65. An upper shell 77 is provided on the outer side of the middle shell 74, which blocks a portion of the surface of the light-diffusing mask 8, leaving the other portion exposed to form the light-emitting area 82. The middle shell 74 has an elongated light-transmitting hole 741. Light emitted by the light-emitting units 65 passes through the light-transmitting hole 741 and illuminates the light-incident area 81. After being scattered inside the light-diffusing mask 8, the light exits from the light-emitting area 82. The projections of the light-incident area 81 and the light-emitting area 82 on the first circuit board 6 do not coincide, thus providing a better light-diffusing effect. The light-diffusing mask 8 structure provided by this invention is not limited to a circular or elongated shape; it can also be polygonal or other shapes.

[0183] In some embodiments (not shown in the figure), the opening of the light-transmitting hole 741 facing the end of the light-emitting unit 65 is designated as a first opening, and the opening of the light-transmitting hole 741 facing the end of the light-diffusing cover 8 is designated as a second opening; the size of the first opening is smaller than the size of the second opening, that is, the light-transmitting hole 741 is a trumpet-shaped hole, which makes the opening of the light-transmitting hole 741 facing the end of the light-diffusing cover 8 larger, the light transmission performance is better, and the light-diffusing effect of the light-diffusing cover 8 is better.

[0184] In some embodiments, such as Figure 37 and Figure 45 As shown, the middle shell 74 is provided with at least one button cover 78. The first circuit board 6 is provided with a second detection switch 621 at a corresponding position of each button cover 78. The button cover 78 can be pressed relative to the middle shell 74, and in the pressing movement, it presses against and triggers the second detection switch 621. The button cover 78 is movably connected to the middle shell 74, allowing the button cover 78 to be pressed relative to the middle shell 74. Specifically, the connection method can be a pivotal connection between one end of the button cover 78 and the middle shell 74, a slider-slide connection, an elastic locking mechanism via an elastic arm, or other movable connection methods.

[0185] In one specific embodiment, such as Figure 37 and Figure 45As shown, one end of the button cover 78 is provided with a button claw 781 facing the middle shell 74. The middle shell 74 is provided with a pivot shaft 745 that matches the button claw 781. The button claw 781 is engaged with the pivot shaft 745, allowing the button cover 78 to perform the pressing movement based on the pivot shaft 745. The button claw 781 has a claw hole. In this embodiment, the claw hole is circular and adapted to the pivot shaft 745, allowing the pivot shaft 745 to rotate within the claw hole. In another embodiment, the claw hole is a racetrack-shaped circle parallel to the pressing direction (not shown in the figure). When the button claw 781 is engaged with the pivot shaft 745, the pivot shaft 745 is embedded in the claw hole and can slide within the claw hole, thereby enabling the button cover 78 to achieve omnidirectional pressing. That is, pressing either the pivot end or the engaging end of the button cover 78 will cause the button cover 78 to move downward, thereby triggering the second detection switch 621.

[0186] Furthermore, such as Figure 37 and Figure 45 As shown, the middle shell 74 is disposed between the button cover 78 and the first circuit board 6. A button spring 782 is disposed between the button cover 78 and the middle shell 74 to provide a restoring force to the button cover 78. The button spring 782 is located at the end of the button cover 78 away from the button claw 781. Further, the middle shell 74 has a spring mounting groove at the location of the button spring 782. A spring limiting rib 746 protrudes inside the spring mounting groove. The button spring 782 is placed in the spring mounting groove, and the spring limiting rib 746 is inserted into the button spring 782 to limit the button spring 782. Furthermore, the button cover 78 has a button latch 783 at the end away from the button claw 781 facing the middle shell 74, and the middle shell 74 has a button engagement position 747. The button latch 783 engages with the button engagement position 747 to restrict the button cover 78 to be parallel to the middle shell 74, so that the button cover 78 is flush with the upper shell 77.

[0187] Furthermore, such as Figure 37 and Figure 44 As shown, the button cover 78 has a protruding button pressing part 784 facing the second detection switch 621. When the button cover 78 is pressed, the button pressing part 784 presses against and triggers the second detection switch 621. Further, the middle shell 74 is disposed between the button cover 78 and the first circuit board 6. The middle shell 74 has a button through hole 748 at a position corresponding to the button pressing part 784. The button pressing part 784 passes through the button through hole 748 and abuts against the second detection switch 621.

[0188] Furthermore, such as Figure 45, Figure 37 and Figure 45 As shown, the first circuit board 6 has an LED 67 at a corresponding position on the key cover 78. The key cover 78 has a light-transmitting part (not shown in the figure), and the light emitted by the LED 67 is transmitted to the outside through the light-transmitting part. Further, the shape of the light-transmitting part is set as a predetermined pattern or text, and the light emitted by the LED 67 is transmitted through the light-transmitting part to display the pattern or text on the surface of the key cover 78. Further, the key cover 78 is integrally molded from a light-transmitting material, and a light-shielding layer is covered on the surface of the key cover 78. The light-shielding layer is removed according to a predetermined shape to form the light-transmitting part. In a specific embodiment, the key cover 78 is integrally injection molded from a semi-transparent material. A layer of light-shielding paint is sprayed onto the outer surface of the key cover 78, and finally, a predetermined pattern or text is laser-engraved on the outer surface of the key cover 78, so that the light-shielding paint in the laser-engraved area is removed, and the laser-engraved area becomes light-transmitting to display the pattern or text to the user. Furthermore, the middle shell 74 is disposed between the button cover 78 and the first circuit board 6, and the middle shell 74 has a button light-transmitting hole 749 at the corresponding position of the LED lamp 67, and the light emitted by the LED lamp 67 is irradiated to the light-transmitting part through the light-transmitting hole 749.

[0189] Furthermore, such as Figure 37 and Figure 45 As shown, button cover 78 extends from its periphery toward the middle shell 74 to form button ribs 785. The middle shell 74 is recessed with rib grooves. When the button is not pressed, the button ribs 785 are at least partially accommodated in the button grooves 751, so that the button ribs 785 can block the light emitted by the LED 67 and prevent light leakage from the side of the button cover 78. At the same time, the button ribs 785 can strengthen the structural strength of the button cover 78.

[0190] In some embodiments, such as Figure 47 , Figure 48 and Figure 48 As shown, Figure 47 for Figure 45The enlarged view of part D shows that the middle shell 74 is disposed between the button cover 78 and the first circuit board 6. The middle shell 74 has multiple vent holes 752 extending through the area covered by the button cover 78. A temperature and humidity sensor 68 is disposed on the first circuit board 6 at a position corresponding to each vent hole 752. The temperature and humidity sensor 68 can be a temperature sensor, a humidity sensor, or a combined temperature and humidity sensor. The area covered by the button cover 78 can be understood as the area projected onto the first circuit board 6 by the button cover 78. In this embodiment, the temperature and humidity sensor 68 is placed below the button cover 78. The pressing motion of the button cover 78 draws external air into the vent holes 752, promoting air circulation around the temperature and humidity sensor 68, thus making the temperature and / or humidity detected by the sensor more accurate.

[0191] Furthermore, such as Figure 48 As shown, the temperature and humidity sensor 68 is located at the corner of the middle shell 74, such as... Figure 45 As shown, the inner wall of the middle shell 74 is provided with a sensor surrounding rib 753, which, together with the inner wall of the middle shell 74 and the first circuit board 6, forms an airflow cavity, which encloses the temperature and humidity sensor 68. The airflow cavity has a vent hole 752 opening on the outer side of the middle shell 74. The temperature and humidity sensor 68 is used to detect ambient temperature and humidity. The sensor surrounding rib 753 prevents air from flowing from inside the rotary switch 1 to the temperature and humidity sensor 68, thus avoiding increased detection errors. Furthermore, placing the temperature and humidity sensor 68 at one corner of the middle shell 74 keeps it away from other electronic components, preventing interference from heat generated by these components. Additionally, when the rotary switch 1 provided by this invention is a wall switch and is installed on a wall, the first circuit board 6 will be close to the wall, allowing the wall to evenly distribute the heat generated by the rotary switch 1, making the temperature detected by the temperature sensor closer to the ambient temperature. Further, as... Figures 35-37 As shown, the middle shell 74 has ventilation holes 752 on its front and side. When the button cover 78 is pressed, it causes air to flow in the airflow chamber. When the button cover 78 is pressed, air can be forced into the airflow chamber from the ventilation holes 752 on the front of the middle shell 74 and then forced out from the ventilation holes 752 on the side of the middle shell 74, ensuring that fresh air enters the airflow chamber and improving the detection accuracy of the temperature and humidity sensor 68.

[0192] Furthermore, such as Figure 45 , Figure 46 , Figure 49 and Figure 34As shown, the rotary switch 1 also includes an upper shell 77, which is detachably connected to the middle shell 74. The bottom shell 76 has a mounting hole 763 through which it is mounted externally. The middle shell 74 has a screw through hole 754 at a position corresponding to the mounting hole 763, for screws to pass through the screw through hole 754 and for mounting the bottom shell 76 externally. The upper shell 77 covers the middle shell 74 and covers the screw through hole 754. The detachable connection can be a magnetic connection, a snap-fit ​​connection, a screw connection, or other detachable connections. By using a detachable connection method, the appearance of the rotary switch 1 can be changed by changing the material of the upper shell 77. Combined with a detachable button cover 78, the appearance of the entire rotary switch 1 can be quickly changed. For example, the upper shell 77 can be quickly switched between a metal material, a plastic material, or a glass material. Meanwhile, the upper shell 77 covers the middle shell 74 and conceals the screws through the hole 754, making the rotary switch 1 more aesthetically pleasing. Furthermore, as... Figure 35 and Figure 37 As shown, the first circuit board 6 is installed between the middle shell 74 and the bottom shell 76. The first circuit board 6 has through holes 66 at corresponding positions of the mounting holes 763 for screws to pass through. Further, as... Figures 45-47 As shown, the upper shell 77 has a knob passage hole 775 at the corresponding position of the knob assembly 5, and the upper part of the knob assembly 5 passes through the knob passage hole 775 and is placed above the upper shell 77.

[0193] In a preferred embodiment, such as Figure 47 As shown, where Figure 46 This is the view of the middle shell 74 when flipped over. The upper shell 77 is magnetically connected to the middle shell 74; wherein, permanent magnets 755 are provided at both ends of the middle shell 74, and an iron plate 771 is provided on the upper shell 77 facing the middle shell 74. The iron plate 771 corresponds to the position of the permanent magnets 755, so that the upper shell 77 is attracted to the middle shell 74. The magnetic connection facilitates quick assembly and disassembly of the upper shell 77, thereby facilitating the installation of the bottom shell 76 on the wall.

[0194] Furthermore, such as Figure 45 and Figure 47As shown, the upper shell 77 has a metal sheet mounting groove 772 facing the middle shell 74, and the shape of the metal sheet mounting groove 772 is adapted to the shape of the metal sheet 771; a limiting protrusion 773 is provided inside the metal sheet mounting groove 772, and the metal sheet 771 has a limiting hole that cooperates with the limiting protrusion 773. When the metal sheet 771 is installed in the metal sheet mounting groove 772, the limiting protrusion 773 is inserted into the limiting hole to limit the metal sheet. Furthermore, the width of the limiting hole facing the middle shell 74 is greater than its width facing the upper shell 77, and the width of the end of the limiting protrusion 773 is greater than its root width, so that the iron piece 771 is fixedly limited in the iron piece mounting groove 772; the limiting protrusion 773 and the upper shell 77 are integrally injection molded, and the iron piece 771 is placed inside the mold of the upper shell 77 to injection mold the upper shell 77. The limiting hole forms the limiting protrusion 773 during the injection molding process, commonly known as in-mold injection molding. Furthermore, the upper shell 77 has a hole insertion protrusion 774 protruding at the corresponding position of the screw through hole 754 in the middle shell 74. The hole insertion protrusion 774 is inserted into the screw through hole 754 and cooperates with the screw through hole 754, so that the upper shell 77 and the middle shell 74 are mutually positioned.

[0195] Furthermore, such as Figure 34 As shown, the middle shell 74 has a permanent magnet mounting groove on the side opposite to the upper shell 77. The shape of the permanent magnet mounting groove is adapted to the permanent magnet 755, and the permanent magnet 755 is fixedly installed in the permanent magnet mounting groove. Furthermore, double-sided adhesive is attached to the surface of the permanent magnet 755 to increase the friction between the permanent magnet 755 and the permanent magnet mounting groove, preventing the permanent magnet 755 from shaking.

[0196] In another embodiment, the upper shell 77 is provided with an upper shell buckle (not shown in the figure) facing the middle shell 74, and the middle shell 74 is provided with a middle shell snap-fit ​​position adapted to the upper shell buckle. The upper shell buckle snaps into the middle shell snap-fit ​​position to realize the detachable connection between the upper shell 77 and the middle shell 74.

[0197] Furthermore, such as Figure 35 , Figure 50 and Figure 34 As shown, Figure 35 This is a schematic diagram of the installation of the first circuit board 6. Figure 50 This is an example of a rotary wall switch. The rotary wall switch is installed on a wall, connected to the household power line and an appliance, and can directly control the operation of the appliance. Figure 35In this embodiment of a rotary wireless switch, the switch is battery-powered and controls electrical appliances by transmitting wireless signals. In both embodiments, the middle shell 74 has a middle shell latch 756 facing the bottom shell 76, and the bottom shell 76 has a corresponding bottom shell latching position 761. The middle shell latch 756 latches onto the bottom shell latching position 761, allowing for a detachable connection between the middle shell 74 and the bottom shell 76. Specifically, the middle shell 74 has sleeve walls extending around its perimeter towards the bottom shell 76. These sleeve walls are fitted onto the sides of the bottom shell 76, and the middle shell latch 756 protrudes from the inner side of the sleeve walls. The bottom shell latching position 761 is correspondingly located on the side of the bottom shell 76, and it is constructed as a step. The middle shell latch 756 latches onto this step.

[0198] Furthermore, such as Figure 50 and Figure 35 As shown, Figure 50 This is an example of a rotary wall switch. Figure 50 In this embodiment of a rotary wireless switch, two positioning holes 762 are recessed on the surface of the bottom shell 76 away from the middle shell 74. The bottom shell 76 can be attached to an external mounting bracket (not shown in the figure) by means of the permanent magnet 755, and the positioning holes 762 can be positioned in conjunction with the external mounting bracket. The external mounting bracket is made of iron and can be attracted by the permanent magnet 755. The external mounting bracket has multiple switch mounting positions and can accommodate multiple switches. The external mounting bracket is mounted on a wall. The rotary wireless switch provided in this embodiment can be attached to the external mounting bracket or an iron surface (such as a door, refrigerator, etc.) for use, or it can be removed and carried for convenient and quick use. The permanent magnet 755 inside the rotary wireless switch can attract both the upper shell 77 and the external mounting bracket or iron surface, eliminating the need for an additional permanent magnet 755 and improving structural utilization. Furthermore, as... Figure 50 As shown, in an embodiment of the rotary wireless switch, two anti-slip stickers 766 are attached to the outer side of the bottom shell 76 to prevent the rotary switch 1 from sliding when it is attached to an iron surface.

[0199] Furthermore, such as Figure 49As shown, the first circuit board 6 is located between the middle shell 74 and the bottom shell 76. The first circuit board 6 has at least one battery mounting position for mounting a button cell battery 757 and electrically connecting to the button cell battery 757. The middle shell 74 extends a battery clip towards the bottom shell 76 at a corresponding position of the battery mounting position to hold the button cell battery 757. Specifically, two battery mounting positions are symmetrically arranged at both ends of one side of the first circuit board 6. Conductive spring contacts 69 are welded to the battery mounting positions, and the conductive spring contacts 69 abut against the button cell battery 757 to conduct electricity. When replacing the battery, the user only needs to remove the bottom shell 76, making the operation convenient.

[0200] Furthermore, such as Figure 34 As shown, a physical switch 622 is soldered onto the first circuit board 6, which can control the circuit connection between the battery mounting position and the first circuit board 6. A switch through-hole is formed in the middle shell 74 at a corresponding position of the physical switch 622, and the physical switch 622 passes through the switch through-hole and is exposed outside the middle shell 74. The physical switch 622 can be a toggle switch, a power switch, a push-button switch, or other physical switches.

[0201] Furthermore, such as Figure 35 As shown, the first circuit board 6 is further provided with: a processing module 10, which is electrically connected to the sensing element 52 and is capable of receiving the pulse signal generated by the sensing element 52; and a wireless communication module (not shown in the figure), which is electrically connected to the processing module 10 and is capable of sending wireless messages to the outside world in response to the pulse signal.

[0202] like Figure 37 , Figure 38 and Figure 37 As shown, the illustration depicts an embodiment of a rotary wall switch. The rotary wall switch also includes a first relay electrically connected to an external wire; as... Figure 36As shown, a control button 758 is provided in the area covered by the upper shell 77 within the middle shell 74, which can control the on / off state of the first relay. The control button 758 can be integrally formed into the middle shell 74, or it can be detachably connected to the middle shell 74. A third detection switch 623 can be provided below the control button 758. The third detection switch 623 can be a physical switch, electrically connected to the terminal block 7641, physically controlling the on / off state of the terminal block 7641; or it can be an electronic switch, electrically connected to the central control module, which is electrically connected to a relay. The control button 758 controls the on / off state of the terminal block 7641 through the relay. In this embodiment, the control button 758 is placed within the area covered by the upper shell 77. Combined with the magnetic connection between the upper shell 77 and the middle shell 74, the user can quickly open the upper shell 77 to control the on / off state of the first electrical appliance connected to the rotary switch 1, which is convenient and quick. Furthermore, the upper shell 77 covers the control button 758, improving the overall aesthetics of the switch. Furthermore, the first circuit board 6 is provided with a third detection switch 623 at the position corresponding to the control button 758, and the control button 758 abuts against the third detection switch 623; the first circuit board 6 is also provided with a processing module 10, which is electrically connected to the third detection switch 623 and the sensing element 52; Figure 40 As shown, the bottom shell 76 is provided with a third circuit board 764, and the first relay is disposed on the third circuit board 764. The third circuit board 764 is electrically connected to the first circuit board 6, so that the first relay is electrically connected to the processing module 10; the third detection switch 623 controls the on / off state of the first relay through the processing module 10. Wherein, as... Figure 42 and Figure 35 As shown, the third circuit board 764 is a power board with soldered terminals 7641 for connecting external wires. The first circuit board 6 is a low-voltage board with a central control module, a first detection switch 62, and a second detection switch 621 soldered on it. Compared to directly controlling the power supply to the terminals 7641 via a physical switch, this embodiment uses an electronic switch to control the power supply to the terminals 7641 via a relay. The advantage is that it simplifies the structure and saves space on the first circuit board 6. Specifically, if the third detection switch 623 were a physical switch, it would need to be soldered onto the third circuit board 764, requiring holes to be made on the first circuit board 6 for the physical switch to pass through. The physical switch would then pass through the holes and be positioned below the control button 758. Compared to an electronic switch, a physical switch offers higher security, but the structure is more complex, and holes need to be made on the first circuit board 6, resulting in low space utilization and making it difficult to isolate high-voltage and low-voltage circuits. Therefore, in this embodiment, an electronic switch is chosen for the third detection switch 623. Furthermore, the third detection switch 623 is a tactile switch.

[0203] Furthermore, such as Figure 36 ,Figure 14 and Figure 40 As shown, a third circuit board 764 is fixedly installed inside the bottom shell 76. The third circuit board 764 is connected to the first circuit board 6 via pin headers 79 and nuts 791. Further, the bottom shell 76 is constructed as a groove-shaped structure with one open end, and a bottom shell clip 765 is integrally formed on its side wall. The third circuit board 764 is inserted through the open end of the bottom shell 76 and snapped into the bottom shell clip 765 to fix the third circuit board 76 to the bottom shell 76.

[0204] Furthermore, such as Figure 42 and Figure 42 As shown, the third circuit board 764 is provided with: at least one terminal block 7641 for connecting external wires; at least one second relay electrically connected to the terminal block 7641; a voltage conversion module electrically connected to the terminal block 7641 and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a processing module 10 electrically connected to the sensing element 52 and the second relay, capable of receiving the pulse signal generated by the sensing element 52 and controlling the on / off state of the second relay. In this embodiment, the invention can be used as a control switch for thermostats, dimmers, etc. Users can adjust the knob assembly 5 to cause the sensing element 52 to output a pulse signal. The processing module 10 receives the pulse signal and controls the on / off state of the relay, thereby controlling the electrical appliance connected to the terminal block 7641 to change its operating state.

[0205] Furthermore, such as Figures 37-44 As shown, the terminal block 7641 includes a wire spring 7642, a wire bolt 7643, and a wire sleeve 7644. The wire sleeve 7644 is sleeved on the wire spring 7642. The wire sleeve 7644 has a wire thread hole that matches the wire bolt 7643. The wire bolt 7643 passes through the wire thread hole and abuts against the wire spring 7642. When the user connects the wire, the wire is inserted into the wire sleeve, and the wire bolt 7643 is tightened, so that the wire is clamped and fixed between the wire sleeve and the wire spring 7642, thereby making the wire and the wire spring 7642 conductive.

[0206] According to a second aspect of the present invention, an apparatus with a light-uniforming structure is also provided, such as... Figures 23-24 and Figure 38As shown, in existing light-uniforming structures, the light-incident area 81 and light-outcident area 82 of the light-uniforming mask 8 are generally positioned directly opposite the light-emitting unit 65. If the light-uniforming space is insufficient, the light emitted by the light-emitting unit 65 will not diffuse evenly, resulting in poor light-uniforming effect. In the prior art, to solve this problem, the distance between the light-uniforming mask 8 and the light-emitting unit 65 is generally increased to allow sufficient space for mixing of the light emitted by the light-emitting unit 65. However, this results in a larger volume for the light-uniforming structure, wasting space. This invention provides a device with a light-uniforming structure that can effectively reduce the distance between the light-uniforming mask 8 and the light-emitting unit 65 while ensuring the light-uniforming effect, thereby improving space utilization. The device with a uniform light structure includes: a first circuit board 6; a light-emitting unit 65 disposed on the first circuit board 6; a uniform light cover 8 corresponding to the position of the light-emitting unit 65, wherein the light emitted by the light-emitting unit 65 is uniformly diffused outward after being uniformly diffused by the uniform light cover 8; a light-blocking member 50 disposed on the side of the uniform light cover 8 away from the light-emitting unit 65, wherein the light-blocking member 50 blocks a portion of the uniform light cover 8 to block part of the light emitted by the uniform light cover 8; the uniform light cover 8 includes an incident light area 81 and an exit light area 82, wherein the light emitted by the light-emitting unit 65 irradiates the uniform light cover 8 to form the incident light area 81 in the irradiated area of ​​the uniform light cover 8, and the area of ​​the uniform light cover 8 that emits light outward constitutes the exit light area 82; the projection pattern of the exit light area 82 on the first circuit board 6 is set as a first projection pattern, and the projection pattern of the exit light area 82 on the first circuit board 6 is set as a second projection pattern, wherein the first projection pattern and the second projection pattern do not overlap. The device with a uniform light structure can be a smart switch, lamp, wireless doorbell, thermostat, or other light-emitting electronic device. This invention uses a rotary switch as an example to describe the device with the uniform light structure in detail, but the protection of this invention is not limited to this. Any device using the uniform light structure provided by this invention is within the scope of protection of this invention. The light-blocking component 50 can be understood as a part or component capable of blocking light, such as a housing, knob, button, or other light-blocking structure. The light-blocking component 50 blocks part of the uniform light cover 8, so that the uniform light cover 8 can only emit light externally through the light-emitting area 82. The uniform light structure provided in this embodiment of the invention prevents the first projection pattern and the second projection pattern of the uniform light cover 8 from coinciding, causing the light-incident area 81 and the light-emitting area 82 of the uniform light cover 8 to be misaligned relative to the light-emitting unit 65. The light emitted by the light-emitting unit 65 is dispersed and deflected inside the uniform light cover 8 before being emitted externally, resulting in a better uniform light effect and maintaining a good uniform light effect even when the uniform light space is small.In some specific embodiments, the distance between the light-emitting unit 65 and the light-incident area 81 is set to be less than or equal to 9 mm. The light-uniform mask structure designed in this invention can still ensure good light uniformity when the light uniform space is small. Furthermore, setting the distance between the light-emitting unit 65 and the light-incident area 81 to be less than or equal to 9 mm can reduce the space occupied by the light uniform structure, thereby reducing the overall thickness of the device.

[0207] Furthermore, such as Figure 39 , Figure 41 , Figure 44 and Figure 39 As shown, the device with a uniform light structure further includes a middle shell 74 for mounting the uniform light cover 8. The first circuit board 6 is provided with a plurality of light-emitting units 65. The middle shell 74 has light-transmitting holes 741 at corresponding positions of each light-emitting unit 65. The light-transmitting holes 741 are located between the light-emitting unit 65 and the uniform light cover 8. The light emitted by the light-emitting unit 65 passes through the light-transmitting holes 741 and illuminates the uniform light cover 8. Further, each light-transmitting hole 741 has a light-shielding part 742 protruding towards the uniform light cover 8. The light-shielding part 742 is located on the side of the light-transmitting hole 741 near the light-emitting area 82. A portion of the light emitted by the light-emitting unit 65 is blocked by the light-shielding part 742 and then illuminates the uniform light cover 8. The light-shielding part 742 can be a strip-shaped protrusion, or multiple protrusions combined to form the light-shielding part 742, or other forms of protrusions for blocking light. The function of the light-shielding part 742 is to block a portion of the light emitted by the light-emitting unit 65. After the light is dispersed within the light-diffusing cover 8, it exits from the light-emitting area 82 between the two light-transmitting holes 741, further enhancing the light-diffusing effect. By placing the light-shielding part 742 on the side of the light-transmitting hole 741 closer to the light-emitting area 82, the path of the light transmitted from the light-incident area 81 to the light-emitting area 82 of the light-diffusing cover 8 is blocked, further weakening the light directly opposite the light-emitting unit 65 and enhancing the light-diffusing effect. In a specific embodiment, the light-shielding part 742 is constructed as a light-shielding rib extending from the middle shell 74.

[0208] Furthermore, such as Figure 41 , Figure 44 and Figures 38-41 As shown, the light-diffusing cover 8 has a light-shielding portion receiving groove 83 recessed at the corresponding position of the light-shielding portion 742, for accommodating the light-shielding portion 742, so that a portion of the light incident on the light-incident area 81 of the light-diffusing cover 8 is blocked by the light-shielding portion 742 and then transmitted to the light-emitting area 82. The light-shielding portion 742 further weakens the light directly opposite the light-emitting unit 65, improving the light-diffusing effect. In addition, the shape of the light-shielding portion receiving groove 83 is adapted to the light-shielding portion 742, so that the lower surface of the light-diffusing cover 8 can fit against the middle shell 74.

[0209] In one specific embodiment, such asFigures 23-24 , Figure 39 As shown, the device with a uniform light structure is a rotary wall switch. The light-blocking member 50 is configured as a rotary assembly 5, which includes: a sensor 52 fixedly connected to the first circuit board 6; a trigger 51 at least partially sleeved on the outside of the sensor 52 and capable of rotating around the sensor 52, triggering the sensor 52 to output a pulse signal with a time difference during rotation; each of the light-emitting units 65 is arranged around the sensor 52, and the uniform light cover 8 is constructed as a ring structure adapted to the distribution shape of the light-emitting units 65. The technical details of the rotary assembly 5 have been described in detail above and will not be repeated here. Furthermore, the uniform light cover 8 is at least partially located between the rotary assembly 5 and the middle shell 74, and the rotary assembly 5 blocks a portion of the surface of the uniform light cover 8, leaving another portion of the surface of the uniform light cover 8 exposed to form the light-emitting area 82. Furthermore, the outer diameter of the light-diffusing cover 8 is larger than the outer diameter of the knob assembly 5, causing the side of the light-diffusing cover 8 to protrude from the side of the knob assembly 5, thereby forming the light-emitting area 82 on the outer side of the knob assembly 5. In this embodiment, the side of the light-diffusing cover 8 protrudes from the side of the knob assembly 5, causing the outer circumference of the knob assembly 5 to emit light. Combined with the flowing light effect of each light-emitting unit 65, the knob switch 1 has a high-tech feel. In a preferred embodiment, the light-emitting unit 65 can be an LED light or other light-emitting electronic components. Preferably, the light-emitting unit 65 is set as a colored LED light.

[0210] Furthermore, such as Figure 41 and Figure 38 As shown, the outer edge of the light-diffusing cover 8 extends towards the knob assembly 5, forming a surrounding portion 84 that surrounds the side of the knob assembly 5. The surrounding portion 84 improves the dustproof performance between the light-diffusing cover 8 and the knob assembly 5, while also enhancing the light-diffusing effect of the light-diffusing cover 8. Since the operating member 54 needs to be pressed to activate the first detection switch 62, a pressing gap is provided between the operating member 54 and the light-diffusing cover 8. The surrounding portion 84 can block this pressing gap, improving dustproof performance. Simultaneously, the surrounding portion 84 protrudes from the upper surface of the light-diffusing cover 8, making the cross-section of the light-diffusing cover 8 resemble an "N" shape. The light-emitting area 82 is located at the upper end of the surrounding portion 84, causing the light to diffuse outwards after multiple bends within the light-diffusing cover 8, thus improving the light-diffusing performance of the light-diffusing cover 8.

[0211] Furthermore, such as Figure 47 and Figure 43As shown, the first circuit board 6 is fixedly installed on the inner side of the middle shell 74. The middle shell 74 has a middle shell through hole 743 at the corresponding position of the knob assembly 5. The knob assembly 5 passes through the middle shell through hole 743 and is partially placed on the outer side of the middle shell 74. The shape of the middle shell through hole 743 is adapted to the shape of the sensing element 52 so that the middle shell through hole 743 is fitted onto the sensing element 52. Further, a plurality of light-diffusing cover buckles 744 are provided on the edge of the middle shell through hole 743 facing the light-diffusing cover 8. The light-diffusing cover buckles 744 are engaged with the light-diffusing cover 8, fixing the light-diffusing cover 8 to the middle shell 74.

[0212] Furthermore, the device with the uniform light structure also includes: a bottom shell 76, detachably connected to the middle shell 74; a third circuit board 764 is fixedly installed inside the bottom shell 76, and the third circuit board 764 is connected to the first circuit board 6 via pin headers 79 and socket headers 791; the third circuit board 764 is provided with: at least one terminal block 7641 for connecting external wires; at least one relay electrically connected to the terminal block 7641; a voltage conversion module electrically connected to the terminal block 7641 and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a processing module 10, electrically connected to the sensing element 52 and the relay, capable of receiving the pulse signal generated by the sensing element 52 and controlling the on / off state of the relay. The technical details of the bottom shell 76, the third circuit board 764, and the processing module 10 have been described in detail above and will not be repeated here.

[0213] In another embodiment, such as Figure 44 and Figure 24 As shown, the light-emitting units 65 are arranged in an elongated shape, and the light-diffusing mask 8 is constructed as an elongated structure adapted to the distribution shape of the light-emitting units 65. An upper shell 77 is provided on the outer side of the middle shell 74, which blocks a portion of the surface of the light-diffusing mask 8, leaving the other portion exposed to form the light-emitting area 82. The middle shell 74 has an elongated light-transmitting hole 741. Light emitted by the light-emitting units 65 passes through the light-transmitting hole 741 and illuminates the light-incident area 81. After being scattered inside the light-diffusing mask 8, the light exits from the light-emitting area 82. The projections of the light-incident area 81 and the light-emitting area 82 on the first circuit board 6 do not coincide, thus providing a better light-diffusing effect. The light-diffusing mask 8 structure provided by this invention is not limited to a circular or elongated shape; it can also be polygonal or other shapes.

[0214] In some embodiments (not shown in the figure), the opening of the light-transmitting hole 741 facing the end of the light-emitting unit 65 is designated as a first opening, and the opening of the light-transmitting hole 741 facing the end of the light-diffusing cover 8 is designated as a second opening; the size of the first opening is smaller than the size of the second opening, that is, the light-transmitting hole 741 is a trumpet-shaped hole, which makes the opening of the light-transmitting hole 741 facing the end of the light-diffusing cover 8 larger, the light transmission performance is better, and the light-diffusing effect of the light-diffusing cover 8 is better.

[0215] According to a third aspect of the present invention, a detection device is provided, such as... Figure 45 , Figure 47 , Figure 48 , Figure 37 , Figure 23 and Figure 48 As shown, Figure 47 for Figure 47 Enlarged view of part D, Figure 24 The view is shown after the middle shell 74 is flipped over. The detection device includes: the middle shell 74; a movable member 780 movably connected to the middle shell 74, such that the movable member 780 can move at least partially toward the middle shell 74 in response to a control force; and a sensor 680 disposed on the side of the middle shell 74 opposite to the movable member 780, used to detect relevant air parameters. The movable member 780 can be a movable component such as a button cover, movable plate, rocker arm, or button. The movable connection can be a pivotal connection, sliding connection, rolling connection, or other feasible connection method, allowing the movable member 780 to move toward and away from the middle shell 74. The sensor 680 can be a temperature sensor, humidity sensor, temperature and humidity sensor, particulate matter detection sensor, specific gas concentration detection sensor, or other sensors capable of detecting various air parameters. The relevant air parameters can be temperature, humidity, inhalable particulate matter, formaldehyde concentration, sulfur dioxide concentration, nitrogen dioxide concentration, carbon dioxide concentration, or oxygen concentration, etc.

[0216] The middle shell 74 has multiple vent holes 752 extending through the area covered by the movable member 780. The sensor 780 is positioned corresponding to the vent holes 752. When the movable member 780 moves towards the middle shell 74, it draws air into the vent holes 752, thereby enhancing the detection accuracy of the sensor 780. The area covered by the movable member 780 can be understood as the area projected onto the middle shell 74 by the movable member 780. Existing devices for detecting air quality typically place the sensor 680 near the outer shell, with small holes in the shell for detection. This method results in poor detection accuracy. In this embodiment, the sensor 680 is positioned opposite the vent holes 752. The movement of the movable member 780 draws external air into the vent holes 752, promoting air circulation around the sensor 680 and making the detected indicators more accurate.

[0217] Furthermore, the sensor 680 can be fixed by soldering to a circuit board, or it can be fixed to the middle shell 74 and then connected to the circuit board by wires to transmit the detection results; the sensor 780 and the vent 752 can be arranged facing each other so that the moving part 780 can drive the air around the sensor 680 to flow.

[0218] Furthermore, such as Figure 45 , Figure 47 , Figure 48 , Figure 37 , Figure 23 and ​ As shown, the detection device further includes a first circuit board 6, disposed on the side of the middle shell 74 opposite to the movable member 780. The sensor 680 is soldered to the first circuit board 6. The movable member 780 is constructed as a button cover 78. The first circuit board 6 is provided with a second detection switch 621 at a corresponding position on the button cover 78. When the button cover 78 moves toward the middle shell 74, the button cover 78 draws air from outside the middle shell 74 into the vent hole 752. Simultaneously, the button cover 78 presses against and triggers the second detection switch 621. In this embodiment, the sensor 680 is positioned below the button cover 78, allowing external air to be drawn into the vent hole 752 when the user presses the button cover 78, thus improving the accuracy of the sensor 680's detection. Furthermore, there are four button covers 78, which are laid on the surface of the middle shell 74 and correspond to different functions. The button cover 78 corresponding to the vent 752 can be set to a more commonly used button function, such as the confirmation button, wake-up / sleep button, up and down arrow keys, etc., which can increase the usage frequency of the button 78 and further improve the detection accuracy of the sensor 680.

[0219] For example, the sensor 780 may be a temperature and humidity sensor 78 for detecting temperature and humidity, and the detection device may be a temperature control switch; in other embodiments, the detection device may be other electronic devices.

[0220] Furthermore, such as Figure 45 As shown, the sensor 680 is disposed at the corner of the middle shell 74. The corner can be understood as an edge or corner location. Distributing the sensor 680 at the corner of the middle shell 74 keeps it away from other electronic components, preventing the heat from these components from interfering with the sensor 680's detection accuracy. Furthermore, when the detection device provided by this invention is a wall switch, the first circuit board 6 will be close to the wall surface when installed on the wall. The wall surface can evenly distribute the heat generated by the device, reducing the impact of heat on the sensor 680.

[0221] Furthermore, such as Figure 48 As shown, the inner wall of the middle shell 74 is provided with a sensor surrounding rib 753, which, together with the inner wall of the middle shell 74 and the first circuit board 6, forms an airflow cavity, which encloses the sensor 680; as Figure 45 As shown, the airflow cavity has ventilation holes 752 on its front and side faces of the middle shell 74. When the button cover 78 is pressed, the distance between the button cover 78 and the middle shell 74 decreases, thereby driving airflow within the airflow cavity. The front face of the middle shell 74 can be understood as the surface of the middle shell 74 facing the button cover 78. The sensor 680 in this embodiment is used to detect ambient temperature and humidity. The sensor surrounding rib 753 prevents airflow from inside the device from reaching the sensor 680 and causing an overestimation of the detected temperature. The function of the airflow cavity is to force air into the airflow cavity from the ventilation holes 752 on the front face of the middle shell 74 when the button cover 78 is pressed, and then force it out from the ventilation holes 752 on the side face of the middle shell 74, ensuring fresh air enters the airflow cavity and improving the detection accuracy of the sensor 680.

[0222] Furthermore, such as Figure 45 and Figure 48 As shown, the vent 752 on the side of the middle shell 74 is constructed as an elongated strip extending towards the first circuit board 6. When the button cover 78 moves towards the middle shell 74, the vent 752 on the side of the middle shell 74 is at least partially exposed to ensure that the air in the airflow cavity can flow out smoothly without being blocked. The elongated vent 752 enhances the air permeability of the sensor 680 and improves the detection accuracy of the sensor 680.

[0223] Furthermore, such as Figure 45 and Figure 37As shown, one end of the button cover 78 is provided with a button claw 781, and the middle shell 74 is provided with a pivot shaft 745 that matches the button claw 781. The button claw 781 engages with the pivot shaft 745 to achieve the movable connection, allowing the button cover 78 to pivot based on the pivot shaft 745. Further, a button spring 782 is provided between the button cover 78 and the middle shell 74 to provide a restoring force to the button cover 78; wherein the button spring 782 is located at the end of the button cover 78 away from the button claw 781. Further, at least one button latch 783 is provided on the end of the button cover 78 away from the button claw 781 facing the middle shell 74, and the middle shell 74 is provided with a button engagement position 747. The button latch 783 engages with the button engagement position 747 to restrict the button cover 78 from being parallel to the middle shell 74. Furthermore, the middle shell 74 has a spring mounting groove at the location of the button spring 782, and a spring limiting rib 746 protrudes inside the spring mounting groove. The button spring 782 is placed in the spring mounting groove, and the spring limiting rib 746 is inserted into the button spring 782 to limit the button spring 782. Furthermore, the button cover 78 has a button pressing part 784 protruding towards the second detection switch 621. When the button cover 78 is pressed, the button pressing part 784 presses against and triggers the second detection switch 621. The middle shell 74 has a pressing through hole at the corresponding position of the button pressing part 784, and the button pressing part 784 passes through the pressing through hole and abuts against the second detection switch 621.

[0224] Furthermore, such as Figure 35 and Figure 36 As shown, the detection device further includes: a bottom shell 76, detachably connected to the middle shell 74; a third circuit board 764 is fixedly installed inside the bottom shell 76, and the third circuit board 764 is connected to the first circuit board 6 via pin headers 79 and female headers 791; the third circuit board 764 is provided with: at least one terminal block 7641 for connecting external wires; at least one relay electrically connected to the terminal block 7641; a voltage conversion module electrically connected to the terminal block 7641 and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a processing module 10, electrically connected to the second detection switch 621 and the relay, capable of controlling the relay to open or close in response to the triggering of the second detection switch 621. The technical details of the bottom shell 76, the third circuit board 764, and each electronic component have been described in detail above and will not be repeated here.

[0225] According to a fourth aspect of the present invention, a rotary switch is provided, such as... Figures 52-54, Figures 45-46 and Figures 34-37 As shown, the rotary switch includes: a middle shell 74; a rotary assembly 5 fixed relative to the middle shell 74, a portion of which is rotatable and triggers the output of a pulse signal during rotation; and an upper shell 77 covering the middle shell 74, with its first end magnetically connected to the middle shell 74. The upper shell 77 has a rotary through hole 775 at a position corresponding to the rotary assembly 5, through which the rotary assembly 5 passes and at least partially protrudes from a first surface of the upper shell 77, the first surface being the side of the upper shell 77 away from the middle shell 74. The rotary assembly 5 includes a trigger 51, a sensor 52, a locking element 53, an operating element 54, and other components, the specific structure of which has been described in detail above and will not be repeated here.

[0226] like Figures 52-54 As shown, the outer diameter of the knob assembly 5 is set to ΦA, the distance from the center line of the knob assembly 5 to the edge of the first end of the upper shell 77 is set to L1, the diameter of the knob through hole 775 is set to ΦB, the distance from the center line of the knob through hole 775 to the edge of the first end of the upper shell 77 is set to L2, and the height of the knob assembly 5 protruding from the first surface is set to H. The knob assembly 5 and the upper shell 77 satisfy the relationship: ((L2+ΦB / 2)^2-(L1+ΦA / 2)^2)^0.5≤H. Wherein, as... Figure 52 As shown, the outer diameter ΦA of the knob assembly 5 is taken as the outer diameter of the upper end of the knob assembly 5. The first end of the upper shell 77 can be either side of the upper shell 77, and the measurement methods of L1 and L2 are as follows. Figure 52 As shown. In this embodiment, the center line of the knob assembly 5 coincides with the center line of the knob through hole 775, i.e., L1 = L2. In other embodiments, the center line of the knob assembly 5 and the center line of the knob through hole 775 may not coincide, but any embodiment that satisfies the above relationship is within the protection scope of this invention. Since the upper shell 77 and the middle shell 74 are magnetically connected, the upper shell 77 is at risk of falling off upon impact. To prevent the upper shell 77 from accidentally detaching, the inventors designed the knob assembly 5 and the upper shell 77 to satisfy the above relationship, thus avoiding the upper shell 77 from accidentally falling off. Specifically, as shown... Figure 51 As shown, the first end is the right end of the upper shell 77 in the figure. When the user accidentally bumps the left end of the upper shell 77, the upper shell 77 rotates around the right end under the attraction of the magnetic force of the right end, and the left end of the upper shell 77 tilts upward. Because the knob through hole 775 is blocked by the knob assembly 5 (as shown in the figure), the first end is the right end of the upper shell 77. Figure 53 As shown in the figure, this prevents the upper shell 77 from detaching from the knob assembly 5, thereby avoiding accidental drop.

[0227] The upper shell 77 and the middle shell 74 are magnetically connected. The appearance of the knob switch 1 can be changed by changing the material of the upper shell 77. In addition, with the detachable button cover 78, the appearance of the entire knob switch 1 can be quickly changed. For example, the upper shell 77 can be quickly switched to a metal material, a plastic material, or a glass material.

[0228] Furthermore, such as Figure 52 , Figure 53 , Figures 45-46 and Figure 34 As shown, the first end and the second end of the upper shell 77, located away from the first end, are magnetically connected to the middle shell 74. Each of the first and second ends is provided with a first magnetic attractor, and the middle shell 74 is provided with a second magnetic attractor at a corresponding position to the first magnetic attractor. The first and second magnetic attractors attract each other to achieve the magnetic connection. Since the second end of the upper shell 77 is magnetically connected to the middle shell 74, when the second end of the upper shell 77 is tilted up, it will be pulled back to its initial state under the action of magnetic force. In this embodiment, the first magnetic attractor is an iron sheet 771, and the second magnetic attractor is a permanent magnet 755. In other embodiments, the first magnetic attractor can be a permanent magnet, the second magnetic attractor can be an iron sheet, or both magnetic attractors can be permanent magnets.

[0229] Furthermore, such as Figure 46 and Figure 45 As shown, the upper shell 77 has a metal sheet mounting groove 772 facing the middle shell 74, and the shape of the metal sheet mounting groove 772 is adapted to the shape of the metal sheet 771; a limiting protrusion 773 is provided inside the metal sheet mounting groove 772, and the metal sheet 771 has a limiting hole that cooperates with the limiting protrusion 773. When the metal sheet 771 is installed in the metal sheet mounting groove 772, the limiting protrusion 773 is inserted into the limiting hole to limit the metal sheet. Furthermore, the width of the limiting hole facing the middle shell 74 is greater than its width facing the upper shell 77, and the width of the end of the limiting protrusion 773 is greater than its root width, so that the iron piece 771 is fixedly limited in the iron piece mounting groove 772; the limiting protrusion 773 and the upper shell 77 are integrally injection molded, and the iron piece 771 is placed inside the mold of the upper shell 77 to injection mold the upper shell 77. The limiting hole forms the limiting protrusion 773 during the injection molding process, commonly known as in-mold injection molding.

[0230] Furthermore, such as Figure 34 and Figure 52As shown, the middle shell 74 has a permanent magnet mounting groove on the side opposite to the upper shell 77. The shape of the permanent magnet mounting groove is adapted to the permanent magnet 755. The permanent magnet 755 is inserted into the opening end of the permanent magnet mounting groove and fixedly installed in the permanent magnet mounting groove. Further, double-sided adhesive is attached to the surface of the permanent magnet 755 to increase the friction between the permanent magnet 755 and the permanent magnet mounting groove, preventing the permanent magnet 755 from shaking. Further, the rotary switch also includes a first circuit board 6, disposed on the side of the middle shell 74 away from the upper shell 77. The rotary assembly 5 is soldered to the first circuit board 6; wherein the first circuit board 6 covers the opening end of the permanent magnet mounting groove to prevent the permanent magnet 755 from detaching from the permanent magnet mounting groove.

[0231] Furthermore, such as Figures 13-15 and Figures 35-36 As shown, the rotary switch also includes a bottom shell 76, which is detachably connected to the middle shell 74. The bottom shell 76 has a mounting hole 763, and the middle shell 74 has a screw through hole 754 at a corresponding position to the mounting hole 763, for screws to pass through the screw through hole 754, and for mounting the bottom shell 76 externally. The upper shell 77 covers the screw through hole 754. The technical details of the bottom shell 76 and the middle shell 74 have been described in detail above and will not be repeated here. In this embodiment, the upper shell 77 covers the screw through hole 754, making the rotary switch 1 more aesthetically pleasing.

[0232] Furthermore, such as Figure 37 and Figure 15 As shown, the rotary switch also includes a first relay (not shown in the figure), which is electrically connected to an external wire; the middle shell 74 is provided with a control button 758 within the area covered by the upper shell 77, which can control the on / off state of the first relay. The technical details of the control button 758 have been described in detail above and will not be repeated here. In this embodiment, the control button 758 is placed within the area covered by the upper shell 77. Combined with the magnetic connection between the upper shell 77 and the middle shell 74, the user can quickly open the upper shell 77 to control the power supply to the first electrical appliance connected to the rotary switch, which is convenient and quick. Furthermore, the upper shell 77 covers the control button 758, making the overall appearance of the switch more aesthetically pleasing.

[0233] Furthermore, such as Figures 13-15 and Figures 35-36As shown, the rotary switch further includes: a first circuit board 6, disposed on the side of the middle shell 74 away from the upper shell 77, the rotary assembly 5 being soldered to the first circuit board 6; a bottom shell 76, detachably connected to the middle shell 74; a third circuit board 764 fixedly installed inside the bottom shell 76, the third circuit board 764 being connected to the first circuit board 6 via pin headers 79 and female headers 791; the third circuit board 764 is provided with: at least one terminal for connecting external wires; a voltage conversion module, electrically connected to the terminal and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a processing module 10, electrically connected to the rotary assembly 5 and the first relay, capable of receiving the pulse signal generated by the rotary assembly 5 and controlling the on / off state of the first relay. The technical details of the first circuit board 6, the bottom shell 76, the third circuit board 764, and each electronic component have been described in detail above and will not be repeated here.

[0234] According to a fifth aspect of the present invention, a rotary switch is provided; see [link to relevant documentation]. Figures 15-16 , Figures 1-3 , Figures 23-24 Among them, such as Figures 15-16 and Figures 2-3 As shown, the rotary switch includes a first circuit board 6 and a rotary assembly 5. The rotary assembly 6 includes: a sensor 52 electrically connected to the first circuit board; a trigger 51, at least partially sleeved on the outside of the sensor 52, and capable of rotating around the sensor 52, triggering the sensor 52 to output a pulse signal during rotation; and an operating member 54 sleeved on the outside of the trigger 51, capable of driving the trigger 51 to rotate. The technical details of the rotary assembly 5 and the first circuit board 6 have been described in detail above and will not be repeated here.

[0235] The trigger member 51 has a first latching unit 5131 on its side wall, and the operating member 54 has a second latching unit 541 adapted to the first latching unit 5131 on its inner wall. The outer wall of the trigger member 51 has a plurality of first positioning grooves 5134 evenly distributed, and the first positioning grooves 5134 extend from the first end of the trigger member 51 toward the second direction. The inner wall of the operating member 54 has a second positioning part 542 protruding, adapted to the first positioning groove 5134. The first end is the end of the trigger member 51 away from the first circuit board 6, and the second direction is the direction of the trigger member 51 toward the first circuit board 6. When the operating member 54 is sleeved on the trigger member 51, the second positioning part 542 is inserted into the first positioning groove 5134 from the first end of the first positioning groove 5134 and is positioned and engaged with the first positioning groove 5134. At the same time, the second latching unit 541 latches onto the first latching unit 5131. The second snap-fit ​​unit 541 can be a snap-fit ​​or a metal spring, and the first snap-fit ​​unit 5131 can be a snap-fit ​​groove that mates with the first snap-fit ​​unit 5131, or a method that can be implemented by those skilled in the art. The second positioning part 542 can be a positioning rib, a positioning block, or a positioning protrusion, etc.

[0236] The first positioning groove 5134 in this embodiment of the invention not only provides an installation guide for the operating member 54, making the assembly efficiency higher, but also the first positioning groove 5134 and the second positioning part 542 can reduce the rotation gap between the trigger member 51 and the operating member 54. In addition, the first positioning groove 5134 also provides a guiding function for the pressing of the operating member 54, making the pressing feel of the operating member 54 better. Specifically, existing rotary switches lack a first positioning groove 5134 and a second positioning part 542. When installing the second snap-fit ​​unit 541, the operator must first align it with the first snap-fit ​​unit 5131 before snapping it in. If the second snap-fit ​​unit 541 is not fully aligned with the first snap-fit ​​unit 5131, the trigger 51 can rotate around the sensing element 52. This causes the operating element 54, once fitted onto the trigger 51, to rotate with it. The operating element 54 cannot adjust its phase angle and must be removed and repositioned, significantly reducing assembly efficiency. The first positioning groove 5134 provided in this embodiment extends from the first end of the trigger 51 towards the second direction, positioning the operating element 54... The installation has a guiding function. When installing the operating part 54, the operator does not need to align it in advance. He only needs to place the operating part 54 on the upper end of the trigger 51. If the first positioning groove 5134 and the second positioning part 542 are aligned, the operating part 54 can be inserted. If the first positioning groove 5134 and the second positioning part 542 are not aligned, the operating part 54 cannot be inserted. In this case, since the trigger 51 will not rotate with the operating part 54, the operator only needs to rotate the operating part 54 to adjust the angle to insert it, which greatly improves the assembly efficiency. Moreover, the outer wall of the trigger 51 is evenly distributed with multiple first positioning grooves 5134. The operating part 54 can be inserted into the trigger 51 at multiple phase angles, which reduces the angle range that the operating part 54 needs to be adjusted and further improves the assembly efficiency.

[0237] Furthermore, the positioning groove 5134 and the second positioning part 542 are positioned and cooperated to improve the normal positioning accuracy of the operating member 54 and reduce the rotation gap between the operating member 54 and the first sleeve part 513, making the knob assembly 5 easier to operate. In addition, the first positioning groove 5134 can provide a guiding effect for the pressing of the operating member 54, so that the operating member 54 can accurately trigger the first detection switch 62 when pressed, improving the pressing feel.

[0238] Furthermore, such as Figure 15 and Figure 16 As shown, the second positioning part 542 is configured as a positioning rib extending toward the first circuit board 6, and the width of the second positioning part toward the first circuit board is smaller than its width away from the first circuit board. That is, the second positioning part 542 is a cone shape that is larger at the top and smaller at the bottom, so that the second positioning part 542 can be inserted into the first positioning groove 5134, further improving the assembly efficiency of the operating member 54.

[0239] Furthermore, such as Figures 14-16 and Figure 3 As shown, the first latching unit 5131 includes a plurality of first latching slots 5132 evenly distributed along the sidewall of the trigger member 51, and the second latching unit 541 includes a plurality of first latches 5411. The first latches 5411 are latched into the first latching slots 5132 to limit the extreme position of the operating member 54 moving toward a first direction, which is the direction in which the trigger member 51 moves away from the first circuit board 6. The first direction is already... Figure 14 According to the winning bid, in a specific embodiment, the outer wall of the first socket portion 513 is evenly provided with three first snap-fit ​​grooves 5132, the first snap-fit ​​grooves 5132 extend toward the first circuit board 6, and the inner wall of the operating member 54 is correspondingly provided with three first buckles 5411, the first buckles 5411 snap into the first snap-fit ​​grooves 5132, so that the operating member 54 can perform a pressing movement along the first snap-fit ​​grooves 5132.

[0240] Furthermore, such as Figures 13-16 As shown, the operating member 54 extends toward the first circuit board 6 and is provided with an abutment portion 59. The first circuit board 6 is provided with a first detection switch 62 at a position corresponding to the abutment portion 59. The operating member 54 is configured to move toward the first circuit board 6 in response to a driving force and drive the abutment portion 59 to press against the first detection switch 62.

[0241] Furthermore, Figures 13-16 As shown, the operating member 54 is constructed as a hat-like structure, including a closed end and an open end. The abutting portion 59 extends from the closed end of the operating member 54. The closed end of the operating member 54 is located at the end of the operating member 54 away from the first circuit board 6, and the open end of the operating member 54 is located at the end of the operating member 54 facing the first circuit board 6. Further, the abutting portion 59 is constructed as a boss with a cross-section resembling a "Y" or "X" shape, used to reduce the deformation of the abutting portion 59 during injection molding.

[0242] Furthermore, Figures 13-15As shown, the first latching groove 5132 extends toward the first circuit board 6, allowing the first latch 5411 to slide along the first latching groove 5132. When the operating member 54 moves toward the first circuit board 6 in response to the driving force, the first latch 5411 slides along the first latching groove 5132, and the contact portion 59 presses against and triggers the first detection switch 62. When the driving force is removed, the operating member 54 returns to its initial position under the elastic force of the first detection switch 62. The first positioning groove 5134 provided in this embodiment can provide a guiding function for the pressing of the operating member 54, enabling the operating member 54 to accurately trigger the first detection switch 62 when pressed, thus improving the pressing feel. Moreover, this embodiment uses the elastic force of the first detection switch 62 itself to reset the operating member 54 without adding an additional reset structure, which not only simplifies the structure but also reduces the reset force, making the pressing force of the operating member 54 lighter, the trigger feedback clearer, and improving the pressing feel. When the first detection switch 62 is triggered, its spring force changes abruptly. During the pressing / resetting process, the operating element 54 is only subjected to the spring force of the first detection switch 62, allowing the feedback from the first detection switch 62 to be transmitted to the user more directly. This makes the trigger feedback clearer and further improves the control feel of the operating element 54. Furthermore, the first detection switch 62 uses a micro switch. Micro switches have lower trigger force, crisper trigger feedback, and a clearer feedback sound, allowing the user to enjoy a light pressing feel while clearly feeling the feedback from the detection switch, greatly improving the control experience of the operating element 54. Rotary switches are often used as dimming switches in the smart home field. Rotary switches are frequently rotated while being pressed, but existing rotary switches generally have an additional reset element, making pressing relatively difficult. This embodiment of the invention uses the detection switch as a reset element, reducing the required pressing force and improving the trigger feedback of the detection switch, greatly improving the control feel of the rotary switch, which is of great significance to rotary switches.

[0243] In another embodiment, such as Figure 27 and Figure 29 As shown, the knob assembly further includes: a display screen 55, electrically connected to the first circuit board 6; and a display screen bracket 56 for mounting the display screen 55. The display screen bracket 56 includes a support portion 561 and a insertion portion 562. The insertion portion 562 is inserted into the sensing element 52 and its rotational freedom is restricted by the sensing element 52. The support portion 561 is provided with a mounting position adapted to the shape of the display screen 55 for mounting the display screen 55. The technical details of the display screen 55 and the display screen bracket 56 have been described in detail above and will not be repeated here.

[0244] Furthermore, such as Figure 29As shown, the display screen bracket 56 has an abutment portion 59 at one end facing the first circuit board 6, and the first circuit board 6 has a first detection switch 62 at a corresponding position of the abutment portion 59. The display screen bracket 56 is configured to move toward the first circuit board 6 in response to a driving force, thereby causing the abutment portion 59 to press against the first detection switch 62. Further, the inner wall of the sensing element 52 extends toward the first circuit board 6 and has a second latching groove 5132. The side wall of the insertion portion 562 has a second latch 5411 that matches the second latching groove 5132. The second latch 5411 is engaged with the second latching groove 5132 and can slide along the second latching groove 5132. When the display screen bracket 56 moves toward the first circuit board 6 in response to the driving force, the second latch 5411 slides along the second latching groove 5132, and the abutment portion 59 presses against and triggers the first detection switch 62. Furthermore, a light-transmitting sheet 58 is provided on the side of the display screen 55 away from the first circuit board 6 to display the content shown on the display screen to the outside. The light-transmitting sheet 58 is adhered to the supporting part 561. Figure 29 The technical details of the relevant embodiments have been described in detail above and will not be repeated here.

[0245] According to a sixth aspect of the present invention, a wall switch is provided; see below. Figure 1 , Figures 12-15 and Figures 35-36 ,like Figure 36 and Figure 35As shown, the wall switch includes: a base shell 76, configured as a slotted structure with one open end; a third circuit board 764, fixedly installed inside the base shell 76; a base shell latch 765 integrally formed on the side wall of the base shell 76, into which the third circuit board 764 is inserted and latched by the base shell latch 765; a dividing slit is formed on the side wall of the base shell 76, dividing the side wall of the base shell 76 to form the base shell latch 765; the dividing slit extends through the inner and outer sides of the side wall of the base shell 76, and the position of the dividing slit corresponds to the third circuit board 764, for providing heat dissipation for the third circuit board 764. The slotted structure can be understood as the base shell 76 having an open top, including four mutually enclosing side walls and a bottom wall. The position of the dividing slit corresponding to the third circuit board 764 can be understood as the third circuit board 764 being placed near the dividing slit or near the center of the dividing slit, so that the electronic components on the third circuit board 764 are dissipated. In existing wall switches, the electronic components of the third circuit board 764, which connect to high voltage, generate significant heat. Therefore, heat dissipation holes 767 are typically provided in the bottom shell 76 for heat dissipation. However, the location of these holes 767 is relatively low and far from the third circuit board 764, resulting in poor heat dissipation. The bottom shell clip 765 provided in this embodiment not only securely holds the third circuit board 764, making installation convenient and improving assembly efficiency, but also features a dividing slit that runs through the inner and outer sides of the bottom shell 76, corresponding to the position of the third circuit board 764, thus aiding in heat dissipation and improving heat dissipation performance. Furthermore, the bottom shell 76 has heat dissipation holes 767, allowing the dividing slit and the holes 767 to work together, further enhancing the heat dissipation performance of the bottom shell 76.

[0246] Furthermore, such as Figure 36 As shown, the sidewalls of the bottom shell 76 include a first sidewall and a second sidewall disposed opposite to each other, and two bottom shell clips 765 are respectively arranged side by side on the first sidewall and the second sidewall. The bottom shell clips 765 are disposed on the opposite first sidewall and second sidewall to facilitate the assembly and disassembly of the third circuit board 764, improving assembly efficiency; the two bottom shell clips 765 on one sidewall are arranged side by side to more stably fix the third circuit board 764 and improve heat dissipation performance.

[0247] Furthermore, such as Figure 14 and Figure 36As shown, the dividing seam includes a first dividing seam and a second dividing seam disposed opposite to each other, and a third dividing seam connecting the first dividing seam and the second dividing seam. The third dividing seam is disposed at one end of the first dividing seam facing the opening end of the bottom shell 76. The distance between the second surface of the third circuit board 764 and the third dividing seam in a first direction is set to L5, and the length of the first dividing seam is set to L6. Then, L5 and L6 satisfy the relationship: 0.4 × L6 ≤ L5 ≤ 0.9 × L6. The second surface is the side of the third circuit board 764 facing the opening end of the bottom shell, and the first direction is the direction of the third circuit board 764 facing the opening end of the bottom shell. The first direction is already defined in the diagram. Figure 14 The selected value is indicated. In this embodiment, L5 and L6 satisfy the relationship: 0.4×L6≤L5≤0.9×L6, which optimizes the location of the third circuit board 764 and provides better heat dissipation.

[0248] like Figure 36 and Figure 14 As shown, the bottom shell buckle 765 includes a buckle arm and a buckle protrusion disposed at the end of the buckle arm. The buckle arm is integrally formed on the side wall of the bottom shell 76, and the buckle protrusion is engaged with the second surface of the third circuit board 764.

[0249] Furthermore, such as Figure 35 and Figure 36 As shown, the wall switch further includes: a middle shell 74, detachably connected to the bottom shell 76; and a first circuit board 6, fixedly mounted on the middle shell 74. The first circuit board 6 and the third circuit board 764 are connected via pin headers 79 and nuts 791. Further, the middle shell 74 has a middle shell latch 756 facing the bottom shell 76, and the bottom shell 76 has a corresponding bottom shell latching position 761. The middle shell latch 756 latches onto the bottom shell latching position 761 to achieve a detachable connection between the middle shell 74 and the bottom shell 76. The technical details of the middle shell 74 and the first circuit board 6 have been described in detail above and will not be repeated here.

[0250] Furthermore, such as Figures 12-15 As shown, the middle shell 74 is provided with at least one button cover 78. The first circuit board is provided with a second detection switch 621 at a corresponding position of each of the six button covers 78. The button cover 78 can be pressed relative to the middle shell 74, and in the pressing movement, it presses against and triggers the second detection switch 621. The technical details of the button cover 78 and the second detection switch 621 have been described in detail above and will not be repeated here.

[0251] In one specific embodiment, the third circuit board 764 is provided with: at least one terminal block 7641 for connecting external wires; at least one second relay electrically connected to the terminal block 7641; a voltage conversion module electrically connected to the terminal block 7641 and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a main control module 10 electrically connected to the second detection switch 621 and the second relay, which can control the second relay to switch on or off in response to the triggering of the second detection switch 621.

[0252] In another specific embodiment, such as Figure 1 and Figures 12-15 As shown, the wall switch is a rotary switch, and further includes: a rotary assembly 5, fixed relative to the middle shell 74, a portion of the rotary assembly 5 being rotatable, and triggering the rotary assembly 5 to output a pulse signal during rotation; at least one terminal block 7641, disposed on the third circuit board 764, for connecting external wires; at least one first relay, disposed on the third circuit board 764, electrically connected to the terminal block 7641; a voltage conversion module, disposed on the third circuit board 764, electrically connected to the terminal block 7641 and the first circuit board 6, for converting high-voltage AC power into low-voltage DC power and providing power to the first circuit board 6; the first circuit board 6 is provided with a processing module 10, electrically connected to the rotary assembly 5 and the first relay, capable of receiving the pulse signal generated by the rotary assembly 5 and controlling the on / off state of the first relay.

[0253] Furthermore, such as Figure 2-5 As shown, the knob assembly 5 includes: a sensor 52 electrically connected to the first circuit board 6; a trigger 51, at least partially sleeved on the outside of the sensor 52, and capable of rotating around the sensor 52, triggering the sensor 52 to output a pulse signal with a time difference during rotation; and a locking member 53 fixedly connected to the first circuit board 6, the locking member 53 abutting against at least a portion of the upper surface of the trigger 51 to limit the axial displacement of the trigger 51; the locking member 53 fastens to the sensor 52, thereby fixing the sensor 52 to the first circuit board 6. The technical details related to the knob assembly 5 have been described in detail above and will not be repeated here.

[0254] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rotary switch, characterized in that, Includes a first circuit board and a knob assembly, the knob assembly comprising: The sensing element is electrically connected to the first circuit board; A trigger element is at least partially sleeved on the outside of the sensor element and is capable of rotating around the sensor element, and triggers the sensor element to output a pulse signal with a time difference during the rotation process; A locking element is fixedly connected to the first circuit board. The locking element abuts against at least a portion of the upper surface of the trigger element to restrict the axial displacement of the trigger element. The locking element is fastened to the sensing element, thereby fixing the sensing element to the first circuit board. The sensing element is provided with multiple guide brushes, which are electrically connected to the first circuit board respectively, and the guide brushes are not electrically connected to each other. The trigger element is provided with multiple brush heads that are interconnected and face the guide brush plate, for abutting the guide brush plate; The guide brush plate includes at least a first guide brush plate, a second guide brush plate, and a third guide brush plate. The first guide brush plate and the second guide brush plate are respectively provided with a plurality of conductive areas at intervals. An insulating area is provided between two adjacent conductive areas. The conductive areas of the same guide brush plate are interconnected. The first and second guide brushes are electrically connected to a first potential, and the third guide brush is electrically connected to a second potential. When the trigger rotates relative to the sensing element, the brush head passes over the conductive area, the insulating area, and the third guide brush, continuously changing the conductivity relationship between each guide brush. There is a preset phase angle between the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush, so that a pulse signal with a time difference is formed between each guide brush. The guide brushes are spaced apart and surround each other to form a ring-like structure; wherein, the central angle shared by the conductive area and an adjacent insulating area is denoted as ε, and a preset interval is provided between the end of the first guide brush facing the third guide brush and the second guide brush, such that the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush generate the preset phase angle; wherein, the central angle occupied by the preset interval is denoted as γ, and the number of brush heads is m, then ε and γ satisfy the following relationship: 360 / m+(k-0.75)×ε / 2≤γ≤360 / m+(k-0.25)×ε / 2, where k is a positive integer.

2. A rotary switch according to claim 1, characterized in that, The pulse signal includes an alternating first level signal and a second level signal, wherein the first level signal generates a first fluctuation when switching to the second level signal, and the second level signal generates a second fluctuation when switching to the first level signal. When the trigger rotates at an angular velocity of 360° / s, the duration of the first fluctuation and the second fluctuation is less than 6ms respectively.

3. A rotary switch according to claim 1, characterized in that, The relationship between ε and γ is: 360 / m+(k-0.6)×ε / 2≤γ≤360 / m+(k-0.3)×ε / 2.

4. A rotary switch according to claim 1, characterized in that, The trigger is surrounded by a plurality of first segment recesses, and the latch and / or the sensor is provided with at least one first segment protrusion adapted to the first segment recesses. When the trigger rotates relative to the sensor, the first segment protrusion and each of the first segment recesses alternately engage, so that the trigger produces a segmented feel during rotation. If the number of depressions in the first segment is set to n, then n and ε satisfy the relationship: 630 / ε≤n≤810 / ε.

5. A rotary switch according to claim 1, characterized in that, The central angle occupied by the conductive region is set as α, and α and ε satisfy the relationship: 0.25×ε≤α≤0.75×ε.

6. A rotary switch according to claim 1, characterized in that, The central angle occupied by the third guide brush is set as β, and β and m satisfy the relationship: 360 / m≤β≤360 / m-5.

7. A rotary switch according to claim 1, characterized in that, The number of brush heads is m=3, and k=1 or 2.

8. A rotary switch according to claim 1, characterized in that, The number of brush heads m = 4, 5 or 6, and k ≤ 25.

9. A rotary switch according to any one of claims 1-8, characterized in that, The trigger includes a first socket portion, and the sensing element includes a second socket portion; The first socket and the second socket are constructed in a cylindrical shape. The first socket is fitted onto the second socket and can rotate around the second socket.

10. A rotary switch according to claim 9, characterized in that, The first socket is provided with a first rotary seat at its end, and the second socket is provided with a second rotary seat at its end; The second rotary seat is provided with the guide brush plate facing the first rotary seat, and the first rotary seat is provided with the brush head facing the second rotary seat; when the first sleeve is fitted onto the second sleeve, the brush head abuts against the guide brush plate.

11. A rotary switch according to claim 10, characterized in that, The upper surface of the first rotary seat is provided with a plurality of first segment recesses. The locking member abuts against the upper surface of the first rotary seat and has a first segment protrusion protruding towards the upper surface of the first rotary seat. When the triggering member rotates relative to the sensing member, the first segment protrusion and each of the first segment recesses alternately cooperate to make the triggering member generate the segment feeling during rotation.

12. A rotary switch according to claim 11, characterized in that, The locking component includes an annular spring piece disposed on the side of the locking component facing the first rotary seat. The annular spring piece is integrally formed with the first segment protrusion. The annular spring piece has a positioning protrusion at its side end for cooperating with the locking component for positioning.

13. A rotary switch according to claim 10, characterized in that, The second rotary seat is recessed and provided with a first receiving groove. The first rotary seat is received in the first receiving groove. The side of the first rotary seat is surrounded by a plurality of first segment recesses. The side wall of the first receiving groove is provided with at least one first segment protrusion. When the trigger rotates relative to the sensing element, the first segment protrusion and each of the first segment recesses alternately cooperate to make the trigger generate the segmented feeling during rotation.

14. A rotary switch according to claim 10, characterized in that, The locking component includes an annular pressing part and a plurality of locking claws extending from the outer edge of the annular pressing part toward the first circuit board. The annular pressing part abuts against the upper surface of the first rotary seat, and the locking claws are bent and locked onto the lower surface of the second rotary seat to clamp the first rotary seat between the annular pressing part and the second rotary seat.

15. A rotary switch according to claim 14, characterized in that, Multiple fixing claws extend from the outer edge of the annular pressing part toward the first circuit board. The fixing claws are welded to the first circuit board to achieve a fixed connection between the locking member and the first circuit board.

16. A rotary switch according to claim 15, characterized in that, The second rotary seat has at least two positioning posts protruding downwards, and the first circuit board has positioning holes adapted to the positioning posts, with the positioning posts inserted into the positioning holes.

17. A rotary switch according to claim 15, characterized in that, The side wall of the second rotary seat is recessed and provided with multiple claw limiting grooves. Each claw limiting groove accommodates the latching claw and the fixing claw, so that the second rotary seat and the locking member are normally positioned.

18. A rotary switch according to claim 1, characterized in that, The first sensing end of the sensing element is electrically connected to a first power source, so as to emit a first level signal in response to the rotation of the trigger element controlling the switching on and off of the first power source. The second sensing terminal of the sensor is electrically connected to a second power source, so as to emit a second level signal in response to the rotation control of the trigger to control the on / off of the second power source.

19. A rotary switch according to claim 1, characterized in that, The sensing end of the sensing element is electrically connected to the first end of the first switching transistor, the control end of the first switching transistor is electrically connected to the voltage control unit, and the second end of the first switching transistor is electrically connected to the third power supply. When the sensing end of the sensor disconnects in response to the rotation of the trigger, the voltage control unit outputs a first voltage control signal to turn on the first switch, and the sensing end of the sensor emits a high-level signal based on the third power supply. When the sensing terminal of the sensor is turned on in response to the rotation of the trigger, the voltage control unit outputs a second voltage control signal to turn off the first switch and the sensing terminal of the sensor outputs a low-level signal.

20. A rotary switch according to claim 19, characterized in that, The voltage control unit includes a second switching transistor, a fourth power supply, and a fifth power supply. The first end of the second switching transistor is electrically connected to the control end of the first switching transistor, the second end of the second switching transistor is connected to the fourth power supply, and the control end of the second switching transistor is connected to the fifth power supply. When the sensing end of the sensing element disconnects in response to the rotation of the trigger element, the fifth power supply controls the second switch to turn off, so as to output a first voltage control signal to the control end of the first switch, thereby turning on the first switch. When the sensing end of the sensor is turned on in response to the rotation of the trigger, the fifth power supply controls the second switch to turn on, so as to output a second voltage control signal to the control end of the first switch, thereby turning off the first switch.

21. A rotary switch according to claim 20, characterized in that, The first switch and the second switch are MOSFETs.

22. A rotary switch according to claim 1, characterized in that, The trigger includes a first socket portion, and the sensing element includes a second socket portion; The first socket and the second socket are constructed in a cylindrical shape. The first socket is fitted onto the second socket and can rotate around the second socket.

23. A rotary switch according to claim 22, characterized in that, The first circuit board is equipped with a proximity sensing module for sensing changes in the electric field within a preset area; The latch is electrically connected to the proximity sensing module, and the latch is made of metal, so that the latch serves as an antenna for the proximity sensing module.

24. A rotary switch according to claim 23, characterized in that, The locking component includes an annular pressing part and a plurality of fixing claws extending from the outer edge of the annular pressing part toward the first circuit board. The fixing claws are welded to the first circuit board, and the locking component is electrically connected to the proximity sensing module through the fixing claws.

25. A rotary switch according to claim 22, characterized in that, The knob assembly also includes an operating element, which is sleeved on the outside of the first sleeve portion; The first socket is provided with a first snap-fit ​​unit on its side wall, and the operating member is provided with a second snap-fit ​​unit on its inner wall. The second snap-fit ​​unit snaps into the first snap-fit ​​unit so that the operating member can drive the trigger member to rotate.

26. A rotary switch according to claim 25, characterized in that, The outer wall of the first socket is provided with a first positioning part, and the inner wall of the operating member is provided with a second positioning part that is adapted to the first positioning part. When the operating member is sleeved on the first socket, the second positioning part and the first positioning part are positioned and cooperated, so that the operating member can drive the trigger member to rotate.

27. A rotary switch according to claim 26, characterized in that, The first positioning part includes at least one first positioning groove, and the second positioning part includes at least one first positioning rib. The first positioning rib is inserted into the first positioning groove to achieve positioning cooperation between the second positioning part and the first positioning part.

28. A rotary switch according to claim 25, characterized in that, The first latching unit includes at least one first latching slot, and the second latching unit includes at least one first latch. The first latch engages with the first latching slot to limit the extreme position of the operating member moving toward a first direction, whereby the first direction is the direction in which the trigger member moves away from the first circuit board.

29. A rotary switch according to claim 25, characterized in that, The knob assembly also includes an operating housing, which is sleeved on the outside of the operating member. The outer wall of the operating member is provided with a third positioning part, and the inner wall of the operating housing is provided with a corresponding fourth positioning part. The third positioning part and the fourth positioning part are positioned and cooperated, so that the operating housing can drive the operating member to rotate.

30. A rotary switch according to claim 29, characterized in that, The third positioning part includes at least one second positioning rib, and the fourth positioning part includes at least one second positioning groove. The second positioning rib is inserted into the second positioning groove to achieve positioning cooperation between the third positioning part and the fourth positioning part.

31. A rotary switch according to claim 29, characterized in that, The control housing is constructed in a cylindrical or cap-like shape; the control housing is made of metal.

32. A rotary switch according to claim 25, characterized in that, The operating component extends toward the first circuit board and is provided with a contact portion, and the first circuit board is provided with a first detection switch at a position corresponding to the contact portion; The operating element is configured to move toward the first circuit board in response to a driving force, thereby causing the abutment portion to press against the first detection switch.

33. A rotary switch according to claim 32, characterized in that, The operating component is constructed as a hat-shaped structure with a closed first end and an open second end. A contact portion extends from the center of the first end toward the first circuit board. The contact portion passes through the second sleeve portion and is positioned above the first detection switch. Wherein, the first end of the operating component is the end away from the first circuit board, and the second end is the end facing the first circuit board.

34. A rotary switch according to claim 33, characterized in that, The contact part is constructed as a protrusion with a cross-section similar to a "Y" or "X".

35. A rotary switch according to claim 32, characterized in that, The first snap-fit ​​unit includes at least one first snap-fit ​​groove extending toward the first circuit board, and the second snap-fit ​​unit includes at least one first snap-fit, the first snap-fit ​​being able to snap into the first snap-fit ​​groove and slide along the first snap-fit ​​groove; When the operating member moves toward the first circuit board in response to the driving force, the first latch slides along the first snap-fit ​​groove, and the abutting part presses against and triggers the first detection switch; when the driving force is removed, the operating member returns to its initial position under the elastic force of the first detection switch.

36. A rotary switch according to claim 35, characterized in that, The distance between the upper surface of the first buckle and the upper end of the first snap-fit ​​groove in a first direction is set to be less than or equal to 1.1 mm, where the first direction is the direction in which the trigger is away from the first circuit board.

37. A rotary switch according to claim 32, characterized in that, A spring is provided between the first detection switch and the contact part. The two ends of the spring are bent toward the first circuit board and fixed to the first circuit board. The spring can undergo elastic deformation in response to the pressure of the contact part. When the operating member moves toward the first circuit board in response to the driving force, the abutting part presses against the spring, the spring undergoes elastic deformation, and then the spring presses against and triggers the first detection switch; when the driving force is removed, the operating member returns to its initial position under the elastic force of the spring.

38. A rotary switch according to claim 32, characterized in that, A bearing is installed at the end of the abutting part, the abutting part is inserted into the inner ring of the bearing, a spring mounting bracket is sleeved on the outer ring of the bearing, and a first spring is provided between the spring mounting bracket and the first circuit board; When the operating member moves toward the first circuit board in response to the driving force, the abutting part drives the bearing and the spring mounting bracket to move toward the first circuit board, pressing against the first spring to produce elastic deformation; when the driving force is removed, the operating member returns to its initial position under the elastic force of the first spring.

39. A rotary switch according to claim 32, characterized in that, The distance between the operating element and the trigger element in a first direction is set to be greater than or equal to 0.5 mm, where the first direction is the direction in which the trigger element is away from the first circuit board.

40. A rotary switch according to claim 32, characterized in that, The operating component is a ring-shaped structure, and an annular contact portion is protruding from the end face facing the first circuit board. At least three first detection switches are evenly distributed along the contact portion at corresponding positions on the first circuit board, and the contact portion abuts against the first detection switches.

41. A rotary switch according to claim 40, characterized in that, The first snap-fit ​​unit includes at least one first snap-fit ​​groove extending toward the first circuit board, and the second snap-fit ​​unit includes at least one first snap-fit, the first snap-fit ​​being able to snap into the first snap-fit ​​groove and slide along the first snap-fit ​​groove; When the operating member moves toward the first circuit board in response to the driving force, the first latch slides along the first snap-fit ​​groove, and the abutting part presses against and triggers the first detection switch; when the driving force is removed, the operating member returns to its initial position under the elastic force of the first detection switch.

42. A rotary switch according to claim 40, characterized in that, The knob assembly also includes: The display screen is electrically connected to the first circuit board. A display screen bracket, one end of which is fixedly connected to the second sleeve, and the other end of which is fitted with the display screen; An operating sleeve is fitted onto the outside of the operating component and is capable of driving the operating component to rotate; The operating component extends outward from its side to form an abutment ring that abuts against the lower end of the operating sleeve, thereby enabling the operating sleeve to drive the operating component to move toward the first circuit board. A light-transmitting sheet is placed over the operating sleeve and forms an internal space for a knob with the operating sleeve. The display screen is housed within the internal space of the knob.

43. A rotary switch according to claim 22, characterized in that, Also includes: The first housing is at least partially parallel to the first circuit board; The first circuit board is slidably connected to the first housing, allowing the first circuit board to move closer to or further away from the first housing; A first detection switch is soldered to the side of the first circuit board opposite to the knob assembly, and the first detection switch abuts against the first housing; The knob assembly responds to a driving force by pressing against the first circuit board, causing the first circuit board to move closer to the first housing, so that the first housing presses against and triggers the first detection switch.

44. A rotary switch according to claim 43, characterized in that, The first housing has a first pin protruding towards the first circuit board. The first pin is perpendicular to the first circuit board. The first circuit board has a first pin hole at the position corresponding to the first pin. The first pin hole can move along the first pin to realize the sliding connection between the first circuit board and the first housing.

45. A rotary switch according to claim 43, characterized in that, The knob assembly also includes: The display screen is electrically connected to the first circuit board. The display screen bracket has one end snapped into the second sleeve and the other end mounted with the display screen. The operating component is sleeved on the outside of the first sleeve portion and engages with the first sleeve portion; An operating sleeve is fitted onto the outside of the operating component and is fixedly connected to the operating component; A light-transmitting sheet is placed over the operating sleeve and forms an internal space for a knob with the operating sleeve. The display screen is housed within the internal space of the knob.

46. ​​A rotary switch according to claim 22, characterized in that, The knob assembly also includes: The display screen is electrically connected to the first circuit board. The display screen bracket has one end inserted into the second socket and the other end mounted on the display screen.

47. A rotary switch according to claim 46, characterized in that, The display screen bracket includes a support part and a plug-in part. The plug-in part is inserted into the second socket part and its rotational freedom is restricted by the second socket part. The support part is provided with a mounting position adapted to the shape of the display screen for mounting the display screen.

48. A rotary switch according to claim 47, characterized in that, The side wall of the plug-in part is provided with a third snap-fit ​​unit, and the inner wall of the second socket part is provided with a fourth snap-fit ​​unit that is adapted to the third snap-fit ​​unit. When the plug-in part is inserted into the second socket part, the third snap-fit ​​unit snaps into the fourth snap-fit ​​unit.

49. A rotary switch according to claim 48, characterized in that, The third latching unit includes at least one second latch, and the fourth latching unit includes at least one second latching groove. The second latch engages with the second latching groove to limit the extreme position of the display bracket's movement toward the first direction. The lower surface of the bearing portion abuts against the upper end of the sensing element to limit the extreme position of the display bracket's movement in the opposite direction of the first direction, where the first direction is the direction in which the trigger element moves away from the first circuit board.

50. A rotary switch according to claim 47, characterized in that, The inner wall of the second socket is provided with at least one third positioning groove, and the outer wall of the insertion part is provided with a third positioning rib adapted to the third positioning groove. The extension direction of the third positioning rib is parallel to the first direction. The third positioning rib is inserted into the third positioning groove to limit the rotation of the display screen bracket. The first direction is the direction in which the trigger is away from the first circuit board.

51. A rotary switch according to claim 47, characterized in that, The display screen is polygonal in shape.

52. A rotary switch according to claim 51, characterized in that, The sidewall of the mounting position is surrounded by multiple limiting parts, which abut against the side of the display screen to limit the display screen.

53. A rotary switch according to claim 51, characterized in that, A locking ring is provided above the display screen, and the locking ring covers the display screen; the locking ring is fixedly connected to the display screen bracket to fix the display screen to the display screen bracket.

54. A rotary switch according to claim 53, characterized in that, Multiple latches extend from the outer edge of the locking ring toward the display screen bracket. The side of the display screen bracket has a latching protrusion at the corresponding position of the latch. The latch engages with the latching protrusion to achieve a fixed connection between the display screen and the display screen bracket.

55. A rotary switch according to claim 51, characterized in that, The sides of the display screen are coated with a light-shielding layer.

56. A rotary switch according to claim 47, characterized in that, The knob assembly further includes an operating member and a control sleeve. The operating member is sleeved on the outside of the first sleeve portion and engages with the first sleeve portion. The control sleeve is sleeved on the outside of the operating member and engages with the operating member in a positioning manner, so that the control sleeve can drive the first sleeve portion to rotate through the operating member.

57. A rotary switch according to claim 56, characterized in that, The side wall of the first sleeve portion is provided with at least one first snap-fit ​​groove, and the inner wall of the operating member is provided with a first buckle that is adapted to the first snap-fit ​​groove. When the operating member is sleeved on the first sleeve portion, the first buckle snaps into the first snap-fit ​​groove to achieve the snap-fit ​​engagement.

58. A rotary switch according to claim 56, characterized in that, The outer wall of the operating component is provided with a third positioning part, and the inner wall of the operating sleeve is provided with a corresponding fourth positioning part. The third positioning part and the fourth positioning part are positioned and cooperated, so that the operating sleeve can drive the operating component to rotate.

59. A rotary switch according to claim 58, characterized in that, The third positioning part includes at least one second positioning rib, and the fourth positioning part includes at least one second positioning groove. The second positioning rib is inserted into the second positioning groove to achieve positioning cooperation between the third positioning part and the fourth positioning part.

60. A rotary switch according to claim 56, characterized in that, The outer wall of the operating component is provided with an operating component buckle, and the operating sleeve is provided with a concave annular groove around the corresponding position of the operating component buckle. The operating component buckle is engaged with the concave annular groove to limit the axial displacement of the operating sleeve.

61. A rotary switch according to claim 56, characterized in that, The control sleeve is integrally formed from metal material.

62. A rotary switch according to claim 56, characterized in that, A light-transmitting sheet is provided on the side of the display screen away from the first circuit board to display the content displayed on the display screen to the outside. The light-transmitting sheet is sealed and connected to the operating sleeve.

63. A rotary switch according to claim 62, characterized in that, The display screen is polygonal in shape, and a light-shielding part is attached to the inner side of the light-transmitting sheet. The light-shielding part is arranged around the edge of the light-transmitting sheet. The area enclosed by the inner edge of the light-shielding part is projected toward the display screen to form a first projection pattern, and the first projection pattern is contained within the display screen.

64. A rotary switch according to claim 47, characterized in that, The display screen bracket has an abutment portion at one end facing the first circuit board, and the first circuit board has a first detection switch at a corresponding position of the abutment portion; The display bracket is configured to move toward the first circuit board in response to a driving force, thereby causing the abutment to press against the first detection switch.

65. A rotary switch according to claim 64, characterized in that, The inner wall of the second socket extends toward the first circuit board and is provided with a second snap-fit ​​groove. The side wall of the plug-in part is provided with a second buckle that matches the second snap-fit ​​groove. The second buckle can slide along the second snap-fit ​​groove. When the display bracket moves toward the first circuit board in response to the driving force, the second buckle slides along the second snap-fit ​​groove, and the abutting part presses against and triggers the first detection switch.

66. A rotary switch according to claim 65, characterized in that, The second snap-fit ​​groove extends from the middle of the inner wall of the second socket toward the first circuit board to limit the extreme position of the insertion part in a first direction, which is the direction in which the trigger moves away from the first circuit board.

67. A rotary switch according to claim 65, characterized in that, A light-transmitting sheet is provided on the side of the display screen away from the first circuit board to display the content displayed on the display screen to the outside. The light-transmitting sheet is adhered to the support part.

68. A rotary switch according to claim 67, characterized in that, The knob assembly also includes an operating element, which is sleeved on the outside of the first sleeve portion and can drive the first sleeve portion to rotate. The operating component is provided with a display screen receiving groove facing the support portion, and the display screen receiving groove encloses the support portion; a pressing gap is provided between the lower surface of the support portion and the bottom of the display screen receiving groove, and a rotation gap is provided between the side of the support portion and the side of the display screen receiving groove, so that the display screen bracket and the operating component are not linked.

69. A rotary switch according to claim 67, characterized in that, The support portion of the display screen bracket extends toward the first circuit board and is provided with the abutting portion. A second spring is provided between the support portion and the first circuit board. The second spring is sleeved on the abutting portion. When the display screen bracket moves toward the first circuit board, the support portion presses against the second spring and undergoes elastic deformation.

70. A rotary switch according to claim 64, characterized in that, The knob assembly further includes an operating member and an operating sleeve. The operating member is sleeved on the first sleeve portion and is axially slidable relative to the first sleeve portion. The operating sleeve is sleeved on the outside of the operating member and is positioned and engaged with the operating member, so that the operating sleeve can drive the first sleeve part to rotate through the operating member. The operating sleeve at least partially abuts against the upper end of the display screen bracket, enabling the operating sleeve to move toward the first circuit board in response to the driving force, thereby causing the display screen bracket to trigger the first detection switch.

71. A rotary switch according to claim 70, characterized in that, The operating sleeve has a pressure transmission part protruding towards the support part, and the pressure transmission part abuts against the upper surface of the support part; the operating sleeve transmits the driving force to the support part through the pressure transmission part, driving the display screen bracket to move towards the first circuit board.

72. A rotary switch according to claim 70, characterized in that, A light-transmitting sheet is provided on the side of the display screen away from the first circuit board to display the content displayed on the display screen to the outside. The light-transmitting sheet is fixed and sealed to the operating sleeve, so that the light-transmitting sheet can respond to the driving force to drive the operating sleeve toward the first circuit board, thereby triggering the first detection switch.

73. A rotary switch according to claim 22, characterized in that, Also includes: The second housing has a second insertion portion protruding towards the knob assembly. The knob assembly is sleeved on the second insertion portion via the second socket portion, allowing the knob assembly to slide towards the second housing. Simultaneously, the second socket portion engages with the second insertion portion, restricting the horizontal rotation of the second socket portion. The second circuit board is fixed relative to the second housing and electrically connected to the first circuit board. The second circuit board is provided with a first detection switch facing the first circuit board. When the knob assembly slides toward the second housing, the knob assembly presses against and triggers the first detection switch. The knob assembly also includes an operating component, which is sleeved on the outside of the first sleeve and engaged with the first sleeve. The operating component can drive the first sleeve to rotate.

74. A rotary switch according to claim 73, characterized in that, The inner wall of the second socket is provided with at least one third snap-fit ​​groove, and the outer wall of the second plug-in part is provided with at least one third buckle. The third buckle snaps into the third snap-fit ​​groove to limit the extreme position of the operating member moving toward the first direction, where the first direction is the direction in which the trigger member moves away from the first circuit board. The length of the third snap-fit ​​groove is adapted to the third snap-fit, so that the second socket can slide axially relative to the second insertion part.

75. A rotary switch according to claim 73, characterized in that, The inner wall of the second socket is provided with at least one third positioning groove, and the outer wall of the second insertion part is provided with a third positioning rib that is adapted to the third positioning groove. When the second insertion part is inserted into the second socket, the third positioning rib is inserted into the third positioning groove, so that the second socket is restricted from rotating in the horizontal direction by the second insertion part.

76. A rotary switch according to claim 73, characterized in that, The side wall of the first socket is provided with at least one first snap-fit ​​groove, and the inner wall of the operating member is provided with at least one first buckle. The first buckle snaps into the first snap-fit ​​groove to snap the operating member into the first socket.

77. A rotary switch according to claim 73, characterized in that, The outer wall of the first socket is provided with a first positioning part, and the inner wall of the operating member is provided with a second positioning part that is adapted to the first positioning part. When the operating member is sleeved on the first socket, the second positioning part and the first positioning part are positioned and cooperated, so that the operating member can drive the trigger member to rotate.

78. A rotary switch according to claim 77, characterized in that, The first positioning part includes at least one first positioning groove, and the second positioning part includes at least one first positioning rib. The first positioning rib is inserted into the first positioning groove to achieve positioning cooperation between the second positioning part and the first positioning part.

79. A rotary switch according to claim 73, characterized in that, The knob assembly also includes: A display screen is disposed on the side of the first circuit board opposite to the second housing, and the display screen is electrically connected to the first circuit board; The display screen bracket is fixedly connected to the first circuit board. The display screen bracket is provided with a mounting position that is adapted to the shape of the display screen for mounting the display screen.

80. A rotary switch according to claim 79, characterized in that, The display screen bracket extends toward the second circuit board and is provided with an abutment portion. The second circuit board is welded with the first detection switch at a corresponding position of the abutment portion. When the knob assembly slides toward the second housing, the abutment portion presses against and triggers the first detection switch. The first circuit board is fixedly connected to the side of the display screen bracket facing the second circuit board. The first circuit board and the second circuit board are located at opposite ends of the second plug-in portion. The first circuit board has a through hole for the abutment portion at the corresponding position of the abutment portion. The abutment portion passes through the through hole for the abutment portion and the second plug-in portion and is positioned above the first detection switch.

81. A rotary switch according to claim 79, characterized in that, The knob assembly also includes an operating sleeve fitted on the outside of the operating member. The outer wall of the operating member is provided with a third positioning part, and the inner wall of the operating sleeve is provided with a corresponding fourth positioning part. The third positioning part and the fourth positioning part are positioned and engaged, so that the operating sleeve can drive the operating member to rotate.

82. A rotary switch according to claim 81, characterized in that, The third positioning part includes at least one second positioning rib, and the fourth positioning part includes at least one second positioning groove. The second positioning rib is inserted into the second positioning groove to achieve positioning cooperation between the third positioning part and the fourth positioning part.

83. A rotary switch according to claim 81, characterized in that, A light-transmitting sheet is provided on the side of the display screen away from the first circuit board to display the content displayed on the display screen to the outside. The light-transmitting sheet is sealed and connected to the operating sleeve. The light-transmitting sheet and the operating sleeve form an internal space for a knob, and the display screen and the first circuit board are housed within the internal space of the knob.

84. A rotary switch according to claim 73, characterized in that, The operating component extends toward the second circuit board and has an abutment portion. The second circuit board has the first detection switch at a corresponding position of the abutment portion. When the knob assembly slides toward the second housing, the operating component moves toward the first circuit board, causing the abutment portion to trigger the first detection switch.

85. A rotary switch according to claim 84, characterized in that, The operating component is constructed as a hat-shaped structure with a closed first end and an open second end. The contact portion extends from the center of the first end of the operating component. The first circuit board is placed inside the operating component. The contact portion passes through the first circuit board and the second sleeve portion and is positioned above the first detection switch. Wherein, the first end of the operating component is the end away from the first circuit board, and the second end is the end facing the first circuit board.

86. A rotary switch according to any one of claims 1-8 and 10-85, characterized in that, Also includes: The first circuit board is fixedly mounted on the middle shell; The bottom shell is detachably connected to the middle shell.

87. A rotary switch according to claim 86, characterized in that, The first circuit board is provided with multiple light-emitting units, and a light-diffusing cover is installed on the middle shell at the position opposite to the light-emitting units. The light emitted by the light-emitting units is diffused outward after being diffused by the light-diffusing cover.

88. A rotary switch according to claim 87, characterized in that, The uniform light cover includes an incident light area and an exit light area. The light emitted by the light-emitting unit illuminates the uniform light cover to form the incident light area in the illuminated area of ​​the uniform light cover, and the area of ​​the uniform light cover that emits light to the outside constitutes the exit light area. The projection pattern of the light-emitting area on the first circuit board is set as a first projection pattern, and the projection pattern of the light-emitting area on the first circuit board is set as a second projection pattern, wherein the first projection pattern and the second projection pattern do not overlap.

89. A rotary switch according to claim 88, characterized in that, The distance between the light-emitting unit and the incident light area is set to be less than or equal to 9 mm.

90. A rotary switch according to claim 88, characterized in that, The middle shell has light-transmitting holes at the corresponding positions of each of the light-emitting units. The light-transmitting holes are located between the light-emitting units and the light-uniforming cover. The light emitted by the light-emitting units passes through the light-transmitting holes and illuminates the light-uniforming cover.

91. A rotary switch according to claim 90, characterized in that, Each of the light-transmitting holes has a light-shielding part protruding towards the light-diffusing cover. The light-shielding part is located on the side of the light-transmitting hole closer to the light-emitting area. A portion of the light emitted by the light-emitting unit is blocked by the light-shielding part and then shines onto the light-diffusing cover.

92. A rotary switch according to claim 91, characterized in that, The light-shielding part is constructed as a light-shielding rib extending from the middle shell.

93. A rotary switch according to claim 91, characterized in that, The light-diffusing mask has a recessed light-diffusing part receiving groove at the corresponding position of the light-diffusing part, which is used to accommodate the light-diffusing part, so that a portion of the light incident on the light-incident area of ​​the light-diffusing mask is blocked by the light-diffusing part and then transmitted to the light-outceasing area.

94. A rotary switch according to claim 91, characterized in that, Each of the light-emitting units is arranged around the sensing element, and the uniform light cover is constructed as a ring structure adapted to the distribution shape of the light-emitting units; The light-diffusing mask is at least partially located between the knob assembly and the middle shell, and the knob assembly covers a portion of the surface of the light-diffusing mask, leaving another portion of the surface of the light-diffusing mask exposed to form the light-emitting area.

95. A rotary switch according to claim 94, characterized in that, The outer diameter of the light-diffusing mask is larger than the outer diameter of the knob assembly, so that the side of the light-diffusing mask protrudes from the side of the knob assembly, thereby forming the light-emitting area on the outside of the knob assembly.

96. A rotary switch according to claim 95, characterized in that, The outer edge of the light-diffusing cover extends around the knob assembly, forming a surrounding portion that surrounds the side of the knob assembly.

97. A rotary switch according to claim 94, characterized in that, The first circuit board is fixedly installed on the inner side of the middle shell. The middle shell has a through hole at the corresponding position of the knob assembly. The knob assembly passes through the through hole and is partially placed on the outer side of the middle shell. The shape of the through hole in the middle shell is adapted to the shape of the sensing element, and the through hole in the middle shell is fitted onto the sensing element.

98. A rotary switch according to claim 97, characterized in that, Multiple light-diffusing cover buckles are provided on the edge of the through hole of the middle shell facing the light-diffusing cover. The light-diffusing cover buckles are engaged with the light-diffusing cover to fix the light-diffusing cover to the middle shell.

99. A rotary switch according to claim 91, characterized in that, Each of the light-emitting units is arranged in a long strip shape, and the uniform light mask is constructed as a long strip structure that matches the distribution shape of the light-emitting units; The outer side of the middle shell is covered by an upper shell, which blocks a part of the surface of the light-diffusing mask, leaving another part of the surface of the light-diffusing mask exposed to form the light-emitting area.

100. A rotary switch according to claim 99, characterized in that, The light-diffusing cover has a light-shielding receiving groove at the corresponding position of the light-shielding part, which is used to accommodate the light-shielding part, so that a portion of the light incident on the light-incident area is blocked by the light-shielding part and then transmitted to the light-outceasing area.

101. A rotary switch according to claim 90, characterized in that, The opening of the light-transmitting hole facing the end of the light-emitting unit is designated as the first opening, and the opening of the light-transmitting hole facing the end of the light-diffusing cover is designated as the second opening; the size of the first opening is smaller than the size of the second opening.

102. A rotary switch according to claim 86, characterized in that, The middle shell is provided with at least one button cover, and the first circuit board is provided with a second detection switch at the corresponding position of each button cover. The button cover can be pressed relative to the middle shell, and presses against and triggers the second detection switch during the pressing movement.

103. A rotary switch according to claim 102, characterized in that, The middle shell is disposed between the button cover and the first circuit board. The middle shell has multiple ventilation holes through the area covered by the button cover. The first circuit board has a temperature and humidity sensor at the position corresponding to the ventilation holes.

104. A rotary switch according to claim 103, characterized in that, The temperature and humidity sensor is located at the corner of the middle shell. The inner wall of the middle shell is provided with a sensor surrounding rib, which together with the inner wall of the middle shell and the first circuit board forms an airflow cavity, which encloses the temperature and humidity sensor. The airflow cavity has a vent hole facing the outer side of the middle shell.

105. A rotary switch according to claim 104, characterized in that, The vent holes are respectively provided on the front and side of the middle shell. When the button cover is pressed, the button cover drives the air in the airflow cavity to flow.

106. A rotary switch according to claim 102, characterized in that, One end of the button cover is provided with a button claw facing the middle shell. The middle shell is provided with a pivot shaft that matches the button claw. The button claw engages with the pivot shaft, so that the button cover can perform the pressing movement based on the pivot shaft.

107. A rotary switch according to claim 102, characterized in that, One end of the button cover is provided with a button claw facing the middle shell, and the middle shell is provided with a pivot shaft that matches the button claw. The button claw is engaged with the pivot shaft. The button claw has a claw hole, which is a racetrack circle parallel to the pressing direction. When the button claw is engaged with the pivot shaft, the pivot shaft is embedded in the claw hole and can slide within the claw hole.

108. A rotary switch according to any one of claims 106 and 107, characterized in that, The middle shell is disposed between the button cover and the first circuit board, and a button spring is disposed between the button cover and the middle shell to provide a restoring force to the button cover; wherein, the button spring is located at the end of the button cover away from the button claw.

109. A rotary switch according to claim 108, characterized in that, The middle shell has a spring mounting groove at the location of the button spring. A spring limiting rib protrudes inside the spring mounting groove. The button spring is placed in the spring mounting groove, and the spring limiting rib is inserted into the button spring to limit the button spring.

110. A rotary switch according to claim 109, characterized in that, The button cover has a button latch at the end away from the button claw facing the middle shell. The middle shell has a button engagement position. The button latch engages with the button engagement position to restrict the button cover from being parallel to the middle shell.

111. A rotary switch according to claim 102, characterized in that, The button cover has a protruding button pressing part facing the second detection switch. When the button cover is pressed, the button pressing part presses against and triggers the second detection switch.

112. A rotary switch according to claim 111, characterized in that, The middle shell is disposed between the button cover and the first circuit board. The middle shell has a button through hole at the position corresponding to the button pressing part. The button pressing part passes through the button through hole and abuts against the second detection switch.

113. A rotary switch according to claim 102, characterized in that, The first circuit board has an LED light at a corresponding position on the button cover. The button cover has a light-transmitting part, and the light emitted by the LED light is transmitted to the outside through the light-transmitting part.

114. A rotary switch according to claim 113, characterized in that, The shape of the light-transmitting part is set as a predetermined pattern or text. The light emitted by the LED light is transmitted through the light-transmitting part and displays the pattern or text on the surface of the button cover.

115. A rotary switch according to claim 114, characterized in that, The button cover is integrally molded from a light-transmitting material. A light-shielding layer is covered on the surface of the button cover. The light-shielding layer is removed according to a predetermined shape to form the light-transmitting part.

116. A rotary switch according to any one of claims 113-115, characterized in that, The middle shell is disposed between the button cover and the first circuit board. The middle shell has a button light-transmitting hole at the corresponding position of the LED light. The light emitted by the LED light shines on the light-transmitting part through the light-transmitting hole.

117. A rotary switch according to claim 116, characterized in that, The button cover has button ribs extending from its four edges toward the middle shell. The middle shell has recessed grooves for the ribs. When the button is not pressed, the button ribs are at least partially accommodated in the button grooves.

118. A rotary switch according to claim 86, characterized in that, It also includes an upper shell, which is detachably connected to the middle shell; The bottom shell has a mounting hole through which it is installed externally; the middle shell has a screw through hole at the corresponding position of the mounting hole, through which a screw passes and the bottom shell is installed externally; wherein, the upper shell covers the middle shell and covers the screw through hole.

119. A rotary switch according to claim 118, characterized in that, The upper shell is provided with an upper shell buckle facing the middle shell, and the middle shell is provided with a middle shell snap-fit ​​position adapted to the upper shell buckle. The upper shell buckle snaps into the middle shell snap-fit ​​position to realize the detachable connection between the upper shell and the middle shell.

120. A rotary switch according to claim 118, characterized in that, The upper shell and the middle shell are magnetically connected; wherein, permanent magnets are provided at both ends of the middle shell, and iron plates are provided on the upper shell facing the middle shell, with the iron plates corresponding to the positions of the permanent magnets, so that the upper shell is attracted to the middle shell.

121. A rotary switch according to claim 120, characterized in that, The upper shell has a metal plate mounting groove facing the middle shell, and the shape of the metal plate mounting groove is adapted to the shape of the metal plate; The iron sheet mounting groove has a limiting protrusion inside, and the iron sheet has a limiting hole that matches the limiting protrusion. When the iron sheet is installed in the iron sheet mounting groove, the limiting protrusion is inserted into the limiting hole to limit the iron sheet.

122. A rotary switch according to claim 121, characterized in that, The width of the limiting hole facing the middle shell is greater than its width facing the upper shell, and the width of the end of the limiting protrusion is greater than the width of the root, so that the iron sheet is fixedly limited in the iron sheet mounting groove. The limiting protrusion is integrally injection molded with the upper shell. The iron sheet is placed inside the mold of the upper shell to injection mold the upper shell. The limiting hole forms the limiting protrusion during the injection molding process.

123. A rotary switch according to claim 120, characterized in that, The middle shell has a permanent magnet mounting groove on the side opposite to the upper shell. The shape of the permanent magnet mounting groove is adapted to the permanent magnet, and the permanent magnet is fixedly installed in the permanent magnet mounting groove.

124. A rotary switch according to claim 120, characterized in that, The middle shell is provided with a middle shell buckle facing the bottom shell, and the bottom shell is provided with a corresponding bottom shell snap-fit ​​position. The middle shell buckle snaps into the bottom shell snap-fit ​​position to realize the detachable connection between the middle shell and the bottom shell.

125. A rotary switch according to claim 124, characterized in that, The bottom shell has two positioning holes recessed on the side of the middle shell away from the middle shell. The bottom shell can be attached to an external mounting bracket by the permanent magnet, and the positioning holes can be positioned in conjunction with the external mounting bracket.

126. A rotary switch according to claim 124, characterized in that, The first circuit board is located between the middle shell and the bottom shell; the first circuit board has at least one battery mounting position, which can install a button battery and is electrically connected to the button battery. The middle shell extends a battery clip toward the bottom shell at the corresponding position of the battery mounting position to secure the button battery.

127. A rotary switch according to claim 126, characterized in that, The first circuit board is soldered with a physical switch that can control the circuit connection between the battery mounting position and the first circuit board. The middle shell has a switch through hole at the corresponding position of the physical switch, and the physical switch passes through the switch through hole and is exposed outside the middle shell.

128. A rotary switch according to claim 126, characterized in that, The first circuit board is also provided with: The processing module is electrically connected to the sensing element and is capable of receiving the pulse signal generated by the sensing element; The wireless communication module is electrically connected to the processing module and is capable of sending wireless messages in response to the pulse signal.

129. A rotary switch according to any one of claims 118-125, characterized in that, It also includes a first relay, which is electrically connected to an external conductor; The middle shell has a control button within the area covered by the upper shell, which can control the on / off state of the first relay.

130. A rotary switch according to claim 129, characterized in that, The first circuit board has a third detection switch at the position corresponding to the control button, and the control button abuts against the third detection switch; The first circuit board is also provided with a processing module, which is electrically connected to the third detection switch and the sensing element; The bottom shell is provided with a third circuit board, and the first relay is disposed on the third circuit board. The third circuit board is electrically connected to the first circuit board, so that the first relay is electrically connected to the processing module; the third detection switch controls the first relay to turn on and off through the processing module.

131. A rotary switch according to claim 86, characterized in that, A third circuit board is fixedly installed inside the bottom shell, and the third circuit board is connected to the first circuit board through a pin header and a nut header.

132. A rotary switch according to claim 131, characterized in that, The bottom shell is a groove-shaped structure with one open end. The side wall is integrally formed with a bottom shell buckle. The third circuit board is inserted into the bottom shell through the open end and snapped into the bottom shell buckle to fix the third circuit board to the bottom shell.

133. A rotary switch according to claim 131, characterized in that, The third circuit board is provided with: At least one terminal block is provided for connecting external wires; At least one second relay is electrically connected to the terminal block; A voltage conversion module, electrically connected to the terminal block and the first circuit board, is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The first circuit board is equipped with a processing module that is electrically connected to the sensing element and the second relay. It is capable of receiving the pulse signal generated by the sensing element and controlling the on / off state of the second relay.

134. A device with a light-uniforming structure, characterized in that, Includes a first circuit board and a knob assembly, the knob assembly comprising: The sensing element is electrically connected to the first circuit board; A trigger element is at least partially sleeved on the outside of the sensor element and is capable of rotating around the sensor element, and triggers the sensor element to output a pulse signal with a time difference during the rotation process; A locking element is fixedly connected to the first circuit board. The locking element abuts against at least a portion of the upper surface of the trigger element to restrict the axial displacement of the trigger element. The locking element is fastened to the sensing element, thereby fixing the sensing element to the first circuit board. The sensing element is provided with multiple guide brushes, which are electrically connected to the first circuit board respectively, and the guide brushes are not electrically connected to each other. The trigger element is provided with multiple brush heads that are interconnected and face the guide brush plate, for abutting the guide brush plate; The guide brush plate includes at least a first guide brush plate, a second guide brush plate, and a third guide brush plate. The first guide brush plate and the second guide brush plate are respectively provided with a plurality of conductive areas at intervals. An insulating area is provided between two adjacent conductive areas. The conductive areas of the same guide brush plate are interconnected. The first and second guide brushes are electrically connected to a first potential, and the third guide brush is electrically connected to a second potential. When the trigger rotates relative to the sensing element, the brush head passes over the conductive area, the insulating area, and the third guide brush, continuously changing the conductivity relationship between each guide brush. There is a preset phase angle between the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush, so that a pulse signal with a time difference is formed between each guide brush. The guide brushes are spaced apart and surround each other to form a ring-like structure; wherein, the central angle shared by the conductive area and an adjacent insulating area is denoted as ε, and a preset interval is provided between the end of the first guide brush facing the third guide brush and the second guide brush, such that the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush generate the preset phase angle; wherein, the central angle occupied by the preset interval is denoted as γ, and the number of brush heads is m, then ε and γ satisfy the following relationship: 360 / m+(k-0.75)×ε / 2≤γ≤360 / m+(k-0.25)×ε / 2, where k is a positive integer; The device with the light-uniforming structure further includes: The light-emitting unit is disposed on the first circuit board; A light-diffusing mask is positioned corresponding to the light-emitting unit. The light emitted by the light-emitting unit is diffused outwards after being uniformly diffused by the light-diffusing mask. A light-blocking component is disposed on the side of the light-diffusing mask opposite to the light-emitting unit. The light-blocking component blocks part of the light-diffusing mask to block part of the light emitted by the light-diffusing mask. The uniform light cover includes an incident light area and an exit light area. The light emitted by the light-emitting unit illuminates the uniform light cover to form the incident light area in the illuminated area of ​​the uniform light cover, and the area of ​​the uniform light cover that emits light to the outside constitutes the exit light area. The projection pattern of the light-emitting area on the first circuit board is set as a first projection pattern, and the projection pattern of the light-emitting area on the first circuit board is set as a second projection pattern, wherein the first projection pattern and the second projection pattern do not overlap.

135. The device with a uniform light structure according to claim 134, characterized in that, The distance between the light-emitting unit and the incident light area is set to be less than or equal to 9 mm.

136. The device with a uniform light structure according to claim 134, characterized in that, Also includes: The middle shell is used to mount the light-diffusing cover; The first circuit board is provided with multiple light-emitting units. The middle shell has light-transmitting holes at the corresponding positions of each of the light-emitting units. The light-transmitting holes are located between the light-emitting units and the light-uniforming cover. The light emitted by the light-emitting units passes through the light-transmitting holes and illuminates the light-uniforming cover.

137. The device with a uniform light structure according to claim 136, characterized in that, Each of the light-transmitting holes has a light-shielding part protruding towards the light-diffusing cover. The light-shielding part is located on the side of the light-transmitting hole closer to the light-emitting area. A portion of the light emitted by the light-emitting unit is blocked by the light-shielding part and then shines onto the light-diffusing cover.

138. The device with a uniform light structure according to claim 137, characterized in that, The light-shielding part is constructed as a light-shielding rib extending from the middle shell.

139. The device with a uniform light structure according to claim 137, characterized in that, The light-diffusing mask has a recessed light-diffusing part receiving groove at the corresponding position of the light-diffusing part, which is used to accommodate the light-diffusing part, so that a portion of the light incident on the light-incident area of ​​the light-diffusing mask is blocked by the light-diffusing part and then transmitted to the light-outceasing area.

140. The device with a uniform light structure according to claim 137, characterized in that, The light-blocking element is configured as the knob assembly, and the knob assembly includes the sensing element and the trigger element; Each of the light-emitting units is arranged around the sensing element, and the uniform light cover is constructed as a ring structure adapted to the distribution shape of the light-emitting units.

141. The device with a uniform light structure according to claim 140, characterized in that, The light-diffusing mask is at least partially located between the knob assembly and the middle shell, and the knob assembly covers a portion of the surface of the light-diffusing mask, leaving another portion of the surface of the light-diffusing mask exposed to form the light-emitting area.

142. The device with a uniform light structure according to claim 141, characterized in that, The outer diameter of the light-diffusing mask is larger than the outer diameter of the knob assembly, so that the side of the light-diffusing mask protrudes from the side of the knob assembly, thereby forming the light-emitting area on the outside of the knob assembly.

143. The device with a uniform light structure according to claim 142, characterized in that, The outer edge of the light-diffusing cover extends around the knob assembly, forming a surrounding portion that surrounds the side of the knob assembly.

144. The device with a uniform light structure according to claim 141, characterized in that, The first circuit board is fixedly installed on the inner side of the middle shell. The middle shell has a through hole at the corresponding position of the knob assembly. The knob assembly passes through the through hole and is partially placed on the outer side of the middle shell. The shape of the through hole in the middle shell is adapted to the shape of the sensing element, so that the through hole in the middle shell is fitted onto the sensing element.

145. The device with a uniform light structure according to claim 144, characterized in that, Multiple light-diffusing cover buckles are provided on the edge of the through hole of the middle shell facing the light-diffusing cover. The light-diffusing cover buckles are engaged with the light-diffusing cover to fix the light-diffusing cover to the middle shell.

146. The device with a uniform light structure according to any one of claims 140-145, characterized in that, Also includes: The bottom shell is detachably connected to the middle shell; A third circuit board is fixedly installed inside the bottom shell, and the third circuit board is connected to the first circuit board through a pin header and a nut header. The third circuit board is provided with: At least one terminal block is provided for connecting external wires; At least one relay is electrically connected to the terminal block; A voltage conversion module, electrically connected to the terminal block and the first circuit board, is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The first circuit board is equipped with a processing module that is electrically connected to the sensing element and the relay. It is capable of receiving the pulse signal generated by the sensing element and controlling the on / off state of the relay.

147. The device with a uniform light structure according to claim 137, characterized in that, Each of the light-emitting units is arranged in a long strip shape, and the uniform light mask is constructed as a long strip structure that matches the distribution shape of the light-emitting units; The outer side of the middle shell is covered by an upper shell, which blocks a part of the surface of the light-diffusing mask, leaving another part of the surface of the light-diffusing mask exposed to form the light-emitting area.

148. The device with a uniform light structure according to claim 136, characterized in that, The opening of the light-transmitting hole facing the end of the light-emitting unit is designated as the first opening, and the opening of the light-transmitting hole facing the end of the light-diffusing cover is designated as the second opening; the size of the first opening is smaller than the size of the second opening.

149. A detection device applicable to the rotary switch as described in claim 1, characterized in that, include: Middle shell; A movable member is movably connected to the middle shell, such that the movable member can move at least a portion toward the middle shell in response to a control force; A sensor, located on the side of the middle shell opposite to the moving part, is used to detect relevant air parameters; The middle shell has multiple vent holes extending through the area covered by the movable part, and the position of the sensor corresponds to the vent holes. When the movable part moves toward the middle shell, it drives air into the vent holes to enhance the detection accuracy of the sensor.

150. A detection device according to claim 149, characterized in that, It also includes a first circuit board disposed on the side of the middle shell opposite to the movable part, and the sensor is soldered to the first circuit board; The movable component is a button cover. The first circuit board has a second detection switch at a corresponding position on the button cover. When the button cover moves toward the middle shell, the button cover causes air from the outside of the middle shell to enter the vent hole. At the same time, the button cover presses against and triggers the second detection switch.

151. A detection device according to claim 150, characterized in that, The sensor is located at the corner of the middle shell.

152. The detection device according to claim 151, characterized in that, The inner wall of the middle shell is provided with sensor surrounding ribs, which together with the inner wall of the middle shell and the first circuit board form an airflow cavity, which encloses the sensor; the airflow cavity has ventilation holes on the front and side of the middle shell respectively.

153. The detection device according to claim 152, characterized in that, The vent on the side of the middle shell is constructed as an elongated strip extending toward the first circuit board. When the button cover faces the middle shell, the vent on the side of the middle shell is at least partially exposed.

154. A detection device according to any one of claims 150-153, characterized in that, One end of the button cover is provided with a button claw, and the middle shell is provided with a pivot shaft that matches the button claw. The button claw engages with the pivot shaft to achieve the movable connection, so that the button cover can pivot based on the pivot shaft.

155. A detection device according to claim 154, characterized in that, A button spring is provided between the button cover and the middle shell to provide a restoring force to the button cover; The button spring is located at the end of the button cover away from the button claw.

156. A detection device according to claim 155, characterized in that, The button cover has at least one button latch at the end away from the button claw facing the middle shell. The middle shell has a button engagement position, and the button latch engages with the button engagement position to restrict the button cover from being parallel to the middle shell.

157. A detection device according to claim 155, characterized in that, The middle shell has a spring mounting groove at the location of the button spring. A spring limiting rib protrudes inside the spring mounting groove. The button spring is placed in the spring mounting groove, and the spring limiting rib is inserted into the button spring to limit the button spring.

158. A detection device according to any one of claims 150-153, characterized in that, The button cover has a protruding button pressing part facing the second detection switch. When the button cover moves towards the middle shell, the button pressing part presses against and triggers the second detection switch. The middle shell has a pressing through hole at the position corresponding to the button pressing part, and the button pressing part passes through the pressing through hole and abuts against the second detection switch.

159. A detection device according to any one of claims 150-153, characterized in that, Also includes: The bottom shell is detachably connected to the middle shell; A third circuit board is fixedly installed inside the bottom shell, and the third circuit board is connected to the first circuit board through a pin header and a nut header. The third circuit board is provided with: At least one terminal block is provided for connecting external wires; At least one relay is electrically connected to the terminal block; A voltage conversion module, electrically connected to the terminal block and the first circuit board, is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The first circuit board is equipped with a processing module that is electrically connected to the second detection switch and the relay, and can control the relay to turn on or off in response to the triggering of the second detection switch.

160. A rotary switch, characterized in that, Includes a first circuit board and a knob assembly, the knob assembly comprising: The sensing element is electrically connected to the first circuit board; A trigger element is at least partially sleeved on the outside of the sensor element and is capable of rotating around the sensor element, and triggers the sensor element to output a pulse signal with a time difference during the rotation process; A locking element is fixedly connected to the first circuit board. The locking element abuts against at least a portion of the upper surface of the trigger element to restrict the axial displacement of the trigger element. The locking element is fastened to the sensing element, thereby fixing the sensing element to the first circuit board. The sensing element is provided with multiple guide brushes, which are electrically connected to the first circuit board respectively, and the guide brushes are not electrically connected to each other. The trigger element is provided with multiple brush heads that are interconnected and face the guide brush plate, for abutting the guide brush plate; The guide brush plate includes at least a first guide brush plate, a second guide brush plate, and a third guide brush plate. The first guide brush plate and the second guide brush plate are respectively provided with a plurality of conductive areas at intervals. An insulating area is provided between two adjacent conductive areas. The conductive areas of the same guide brush plate are interconnected. The first and second guide brushes are electrically connected to a first potential, and the third guide brush is electrically connected to a second potential. When the trigger rotates relative to the sensing element, the brush head passes over the conductive area, the insulating area, and the third guide brush, continuously changing the conductivity relationship between each guide brush. There is a preset phase angle between the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush, so that a pulse signal with a time difference is formed between each guide brush. The guide brushes are spaced apart and surround each other to form a ring-like structure; wherein, the central angle shared by the conductive area and an adjacent insulating area is denoted as ε, and a preset interval is provided between the end of the first guide brush facing the third guide brush and the second guide brush, such that the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush generate the preset phase angle; wherein, the central angle occupied by the preset interval is denoted as γ, and the number of brush heads is m, then ε and γ satisfy the following relationship: 360 / m+(k-0.75)×ε / 2≤γ≤360 / m+(k-0.25)×ε / 2, where k is a positive integer; The rotary switch also includes: The middle shell has a knob assembly fixed relative to it, and a portion of the knob assembly is rotatable, triggering the knob assembly to output the pulse signal during rotation. An upper shell is disposed on the middle shell, and the first end of the upper shell is magnetically connected to the middle shell; the upper shell has a knob through hole at the corresponding position of the knob assembly, the knob assembly passes through the knob through hole and at least partially protrudes from the first surface of the upper shell, the first surface being the side of the upper shell away from the middle shell; The outer diameter of the knob assembly is set to ΦA, the distance from the center line of the knob assembly to the edge of the first end of the upper shell is set to L1, the diameter of the knob through hole is set to ΦB, the distance from the center line of the knob through hole to the edge of the first end of the upper shell is set to L2, and the height of the knob assembly protruding from the first surface is set to H. The knob assembly and the upper shell satisfy the relationship: ((L2+ΦB / 2)^2-(L1+ΦA / 2)^2)^0.5≤H.

161. A rotary switch according to claim 160, characterized in that, The first end and the second end away from the first end of the upper shell are magnetically connected to the middle shell, respectively. The first end and the second end are respectively provided with a first magnetic attraction element, and the middle shell is provided with a second magnetic attraction element at the corresponding position of the first magnetic attraction element. The first magnetic attraction element and the second magnetic attraction element attract each other to achieve the magnetic connection.

162. A rotary switch according to claim 161, characterized in that, The first magnetic attractor is an iron sheet, and the second magnetic attractor is a permanent magnet.

163. A rotary switch according to claim 162, characterized in that, The upper shell has a metal plate mounting groove facing the middle shell, and the shape of the metal plate mounting groove is adapted to the shape of the metal plate; The iron sheet mounting groove has a limiting protrusion inside, and the iron sheet has a limiting hole that matches the limiting protrusion. When the iron sheet is installed in the iron sheet mounting groove, the limiting protrusion is inserted into the limiting hole to limit the iron sheet.

164. A rotary switch according to claim 163, characterized in that, The width of the limiting hole facing the middle shell is greater than its width facing the upper shell, and the width of the end of the limiting protrusion is greater than the width of the root, so that the iron sheet is fixedly limited in the iron sheet mounting groove. The limiting protrusion is integrally injection molded with the upper shell. The iron sheet is placed inside the mold of the upper shell to injection mold the upper shell. The limiting hole forms the limiting protrusion during the injection molding process.

165. A rotary switch according to claim 162, characterized in that, The middle shell has a permanent magnet mounting groove on the side opposite to the upper shell. The shape of the permanent magnet mounting groove is adapted to the permanent magnet. The permanent magnet is inserted into the opening end of the permanent magnet mounting groove and fixedly installed in the permanent magnet mounting groove.

166. A rotary switch according to claim 165, characterized in that, It also includes a first circuit board disposed on the side of the middle shell away from the upper shell, and the knob assembly is soldered to the first circuit board; The first circuit board is disposed on the opening end of the permanent magnet mounting groove.

167. A rotary switch according to any one of claims 160-166, characterized in that, It also includes a bottom shell, which is detachably connected to the middle shell; The bottom shell has a mounting hole, and the middle shell has a screw through hole at the corresponding position of the mounting hole, for screws to pass through the screw through hole and for mounting the bottom shell to the outside; wherein, the upper shell covers the screw through hole.

168. A rotary switch according to any one of claims 160-166, characterized in that, It also includes a first relay, which is electrically connected to an external conductor; The middle shell has a control button within the area covered by the upper shell, which can control the on / off state of the first relay.

169. A rotary switch according to claim 168, characterized in that, Also includes: A first circuit board is disposed on the side of the middle shell away from the upper shell, and the knob assembly is soldered to the first circuit board; The bottom shell is detachably connected to the middle shell; A third circuit board is fixedly installed inside the bottom shell, and the third circuit board is connected to the first circuit board through a pin header and a nut header. The third circuit board is provided with: At least one terminal block is provided for connecting external wires; A voltage conversion module, electrically connected to the terminal block and the first circuit board, is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The first circuit board is equipped with a processing module that is electrically connected to the knob assembly and the first relay. It is capable of receiving the pulse signal generated by the knob assembly and controlling the on / off state of the first relay.

170. A rotary switch, characterized in that, Includes a first circuit board and a knob assembly, the knob assembly comprising: The sensing element is electrically connected to the first circuit board; A trigger element is at least partially sleeved on the outside of the sensor element and is capable of rotating around the sensor element, and triggers the sensor element to output a pulse signal with a time difference during the rotation process; A locking element is fixedly connected to the first circuit board. The locking element abuts against at least a portion of the upper surface of the trigger element to restrict the axial displacement of the trigger element. The locking element is fastened to the sensing element, thereby fixing the sensing element to the first circuit board. The sensing element is provided with multiple guide brushes, which are electrically connected to the first circuit board respectively, and the guide brushes are not electrically connected to each other. The trigger element is provided with multiple brush heads that are interconnected and face the guide brush plate, for abutting the guide brush plate; The guide brush plate includes at least a first guide brush plate, a second guide brush plate, and a third guide brush plate. The first guide brush plate and the second guide brush plate are respectively provided with a plurality of conductive areas at intervals. An insulating area is provided between two adjacent conductive areas. The conductive areas of the same guide brush plate are interconnected. The first and second guide brushes are electrically connected to a first potential, and the third guide brush is electrically connected to a second potential. When the trigger rotates relative to the sensing element, the brush head passes over the conductive area, the insulating area, and the third guide brush, continuously changing the conductivity relationship between each guide brush. There is a preset phase angle between the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush, so that a pulse signal with a time difference is formed between each guide brush. The guide brushes are spaced apart and surround each other to form a ring-like structure; wherein, the central angle shared by the conductive area and an adjacent insulating area is denoted as ε, and a preset interval is provided between the end of the first guide brush facing the third guide brush and the second guide brush, such that the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush generate the preset phase angle; wherein, the central angle occupied by the preset interval is denoted as γ, and the number of brush heads is m, then ε and γ satisfy the following relationship: 360 / m+(k-0.75)×ε / 2≤γ≤360 / m+(k-0.25)×ε / 2, where k is a positive integer; The rotary switch also includes an operating component, which is sleeved on the outside of the trigger component and can drive the trigger component to rotate; The trigger member has a first snap-fit ​​unit on its side wall, and the operating member has a second snap-fit ​​unit adapted to the first snap-fit ​​unit on its inner wall. The trigger member has a plurality of first positioning grooves evenly distributed on its outer wall, each first positioning groove extending from a first end of the trigger member toward a second direction. The operating member has a second positioning portion protruding from its inner wall, adapted to the first positioning groove. The first end is the end of the trigger member away from the first circuit board, and the second direction is the direction in which the trigger member faces the first circuit board. When the operating component is fitted onto the trigger component, the second positioning part is inserted into the first positioning groove from the first end of the first positioning groove and is positioned and engaged with the first positioning groove. At the same time, the second snap-fit ​​unit snaps into the first snap-fit ​​unit.

171. A rotary switch according to claim 170, characterized in that, The second positioning part is configured as a positioning rib extending toward the first circuit board, and the width of the second positioning part toward the first circuit board is smaller than its width away from the first circuit board.

172. A rotary switch according to claim 170, characterized in that, The first latching unit includes a plurality of first latching slots evenly distributed along the side wall of the trigger member, and the second latching unit includes a plurality of first latches. The first latches are latched into the first latching slots to limit the extreme position of the operating member moving toward a first direction, the first direction being the direction in which the trigger member moves away from the first circuit board.

173. A rotary switch according to claim 172, characterized in that, The operating component extends toward the first circuit board and is provided with a contact portion, and the first circuit board is provided with a first detection switch at a position corresponding to the contact portion; The operating element is configured to move toward the first circuit board in response to a driving force, thereby causing the abutment portion to press against the first detection switch.

174. A rotary switch according to claim 173, characterized in that, The operating element is constructed as a hat-shaped structure, which includes a closed end and an open end, and the contact portion extends from the closed end of the operating element; The closed end of the operating element is located at the end of the operating element away from the first circuit board, and the open end of the operating element is located at the end of the operating element facing the first circuit board.

175. A rotary switch according to claim 173, characterized in that, The contact part is constructed as a protrusion with a cross-section similar to a "Y" or "X".

176. A rotary switch according to claim 173, characterized in that, The first snap-fit ​​groove extends toward the first circuit board, allowing the first buckle to slide along the first snap-fit ​​groove; When the operating member moves toward the first circuit board in response to the driving force, the first latch slides along the first snap-fit ​​groove, and the abutting part presses against and triggers the first detection switch; when the driving force is removed, the operating member returns to its initial position under the elastic force of the first detection switch.

177. A rotary switch according to claim 170, characterized in that, The knob assembly also includes: The display screen is electrically connected to the first circuit board. A display screen bracket is used to mount the display screen. The display screen bracket includes a support part and a plug-in part. The plug-in part is inserted into the sensing element and its rotational freedom is restricted by the sensing element. The support part is provided with a mounting position adapted to the shape of the display screen for mounting the display screen.

178. A rotary switch according to claim 177, characterized in that, The display screen bracket has an abutment portion at one end facing the first circuit board, and the first circuit board has a first detection switch at a corresponding position of the abutment portion; The display bracket is configured to move toward the first circuit board in response to a driving force, thereby causing the abutment to press against the first detection switch.

179. A rotary switch according to claim 178, characterized in that, The inner wall of the sensor extends toward the first circuit board and is provided with a second snap-fit ​​groove. The side wall of the plug-in part is provided with a second buckle that is adapted to the second snap-fit ​​groove. The second buckle is snapped into the second snap-fit ​​groove and can slide along the second snap-fit ​​groove. When the display bracket moves toward the first circuit board in response to the driving force, the second buckle slides along the second snap-fit ​​groove, and the abutting part presses against and triggers the first detection switch.

180. A rotary switch according to claim 179, characterized in that, A light-transmitting sheet is provided on the side of the display screen away from the first circuit board to display the content displayed on the display screen to the outside. The light-transmitting sheet is adhered to the support part.

181. A wall switch, characterized in that, Includes a first circuit board and a knob assembly, the knob assembly comprising: The sensing element is electrically connected to the first circuit board; A trigger element is at least partially sleeved on the outside of the sensor element and is capable of rotating around the sensor element, and triggers the sensor element to output a pulse signal with a time difference during the rotation process; A locking element is fixedly connected to the first circuit board. The locking element abuts against at least a portion of the upper surface of the trigger element to restrict the axial displacement of the trigger element. The locking element is fastened to the sensing element, thereby fixing the sensing element to the first circuit board. The sensing element is provided with multiple guide brushes, which are electrically connected to the first circuit board respectively, and the guide brushes are not electrically connected to each other. The trigger element is provided with multiple brush heads that are interconnected and face the guide brush plate, for abutting the guide brush plate; The guide brush plate includes at least a first guide brush plate, a second guide brush plate, and a third guide brush plate. The first guide brush plate and the second guide brush plate are respectively provided with a plurality of conductive areas at intervals. An insulating area is provided between two adjacent conductive areas. The conductive areas of the same guide brush plate are interconnected. The first and second guide brushes are electrically connected to a first potential, and the third guide brush is electrically connected to a second potential. When the trigger rotates relative to the sensing element, the brush head passes over the conductive area, the insulating area, and the third guide brush, continuously changing the conductivity relationship between each guide brush. There is a preset phase angle between the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush, so that a pulse signal with a time difference is formed between each guide brush. The guide brushes are spaced apart and surround each other to form a ring-like structure; wherein, the central angle shared by the conductive area and an adjacent insulating area is denoted as ε, and a preset interval is provided between the end of the first guide brush facing the third guide brush and the second guide brush, such that the conductive area of ​​the first guide brush and the conductive area of ​​the second guide brush generate the preset phase angle; wherein, the central angle occupied by the preset interval is denoted as γ, and the number of brush heads is m, then ε and γ satisfy the following relationship: 360 / m+(k-0.75)×ε / 2≤γ≤360 / m+(k-0.25)×ε / 2, where k is a positive integer; The wall switch also includes: The bottom shell is constructed as a groove-shaped structure with one end open; The third circuit board is fixedly installed inside the bottom shell; The bottom shell has an integrally formed bottom shell buckle on its side wall, and the third circuit board is inserted into the bottom shell through the opening end and snapped into the bottom shell buckle. The bottom shell has a dividing slit on its side wall, which divides the bottom shell side wall to form the bottom shell buckle; the dividing slit extends through the inner and outer sides of the bottom shell side wall, and the position of the dividing slit corresponds to the third circuit board, which is used to provide heat dissipation for the third circuit board.

182. A wall switch according to claim 181, characterized in that, The bottom shell has heat dissipation holes.

183. A wall switch according to claim 182, characterized in that, The sidewalls of the bottom shell include a first sidewall and a second sidewall disposed opposite to each other, and the first sidewall and the second sidewall are respectively provided with two bottom shell buckles side by side.

184. A wall switch according to claim 181, characterized in that, The dividing seam includes a first dividing seam and a second dividing seam disposed opposite to each other, and a third dividing seam connecting the first dividing seam and the second dividing seam, wherein the third dividing seam is disposed at the end of the first dividing seam facing the opening end of the bottom shell. Wherein, the distance between the second surface of the third circuit board and the third dividing seam in the first direction is set as L5, and the length of the first dividing seam is set as L6. Then, L5 and L6 satisfy the relationship: 0.4×L6≤L5≤0.9×L6; the second surface is the side of the third circuit board facing the opening end of the bottom shell, and the first direction is the direction of the third circuit board facing the opening end of the bottom shell.

185. A wall switch according to claim 184, characterized in that, The bottom shell buckle includes a buckle arm and a buckle protrusion disposed at the end of the buckle arm. The buckle arm is integrally formed on the side wall of the bottom shell, and the buckle protrusion is engaged with the second surface of the third circuit board.

186. A wall switch according to any one of claims 181-185, characterized in that, Also includes: The middle shell is detachably connected to the bottom shell; The first circuit board is fixedly installed on the middle shell, and the first circuit board and the third circuit board are connected by a pin header and a nut header.

187. A wall switch according to claim 186, characterized in that, The middle shell is provided with at least one button cover, and the first circuit board is provided with a second detection switch at the corresponding position of each button cover. The button cover can be pressed relative to the middle shell, and presses against and triggers the second detection switch during the pressing movement.

188. A wall switch according to claim 186, characterized in that, The middle shell is provided with a middle shell buckle facing the bottom shell, and the bottom shell is provided with a corresponding bottom shell snap-fit ​​position. The middle shell buckle snaps into the bottom shell snap-fit ​​position to realize the detachable connection between the middle shell and the bottom shell.

189. A wall switch according to claim 187, characterized in that, The third circuit board is provided with: At least one terminal block is provided for connecting external wires; At least one second relay is electrically connected to the terminal block; A voltage conversion module, electrically connected to the terminal block and the first circuit board, is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The first circuit board is equipped with a main control module, which is electrically connected to the second detection switch and the second relay, and can control the second relay to turn on and off in response to the triggering of the second detection switch.

190. A wall switch according to claim 186, characterized in that, Also includes: At least one terminal block is provided on the third circuit board for connecting external wires; At least one first relay is disposed on the third circuit board and electrically connected to the terminal block; A voltage conversion module is disposed on the third circuit board and electrically connected to the terminal block and the first circuit board. It is used to convert high-voltage AC power into low-voltage DC power and provide power to the first circuit board. The knob assembly is fixed relative to the middle shell, and a portion of the knob assembly is rotatable, triggering the knob assembly to output the pulse signal during rotation. The first circuit board is equipped with a processing module that is electrically connected to the knob assembly and the first relay. It is capable of receiving the pulse signal generated by the knob assembly and controlling the on / off state of the first relay.

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