Knob device and electrical equipment

Abstract

The invention discloses a knob device and electrical equipment, and relates to the technical field of electrical equipment control. The knob is rotationally matched with the base; the feedback assembly comprises a triggering piece and an abutting piece, one of the triggering piece and the abutting piece is connected with the rotary knob, and the other one of the triggering piece and the abutting piece is connected with the base, so that when the rotary knob rotates relative to the base, the triggering piece and the abutting piece can rotate relative to each other; the triggering piece comprises a special-shaped rotating body, the special-shaped rotating body is provided with a special-shaped curved surface, the abutting piece can abut against the special-shaped curved surface in an elastic deformation mode, and when the triggering piece and the abutting piece rotate relatively, the special-shaped curved surface extrudes the abutting piece, so that the triggering piece and the abutting piece rotate relatively. And therefore, the propping piece is elastically deformed and generates non-uniformly changed feedback force. According to the technical scheme, clear feedback can be provided for a user, the user can perceive the adjusting amount, and therefore the knob can be rapidly positioned to the target position.

Description

Technical Field

[0001] This invention relates to the field of electrical control technology, and in particular to a knob device and electrical equipment. Background Technology

[0002] A knob is a common control unit widely used in various household appliances to regulate temperature, brightness, water flow, etc. Depending on the requirements, a knob can be continuously rotated or rotated to a specific position. Currently, most knobs used in shower equipment are continuously rotating knobs. These knobs allow for stepless adjustment, but they lack clear feedback, making it difficult for users to perceive the adjustment amount and quickly position the knob to the desired location. Summary of the Invention

[0003] The main objective of this invention is to provide a knob device and electrical equipment that provides clear feedback to the user when adjusting the knob, allowing the user to perceive the adjustment amount and quickly position the knob to the target position.

[0004] To achieve the above objectives, the present invention provides a knob device comprising:

[0005] Base;

[0006] The knob rotates in conjunction with the base; and

[0007] The feedback component includes a trigger and a stop, one of which is connected to the knob and the other to the base, so that when the knob rotates relative to the base, the trigger and the stop can rotate relative to each other. The trigger includes an irregularly shaped rotating body with an irregularly shaped curved surface, and the stop can elastically deform and abut against the irregularly shaped curved surface. When the trigger and the stop rotate relative to each other, the irregularly shaped curved surface squeezes the stop, causing the stop to elastically deform and generate a non-uniformly changing feedback force.

[0008] In one embodiment, the irregularly shaped rotating body further includes a plurality of protruding teeth spaced apart along the extension direction of the irregularly shaped curved surface, and a groove is formed between two adjacent protruding teeth, the end of the abutment member being used to engage with the groove.

[0009] In one embodiment, the outer peripheral surface of the irregular rotating body forms the irregular curved surface, the irregular curved surface including a convex surface, the middle portion of the convex surface protruding toward a side away from the rotation center of the irregular rotating body.

[0010] In one embodiment, the irregular curved surface further includes a concave surface, which is arranged circumferentially with the convex surface along the irregular rotating body, and the concave surface forms a groove for the end of the abutment to engage.

[0011] In one embodiment, the projection of the irregular rotating body onto a plane perpendicular to its axis has intersecting major and minor axes, the irregular rotating body having the convex surface on at least one side along its minor axis and the concave surface on at least one side along its major axis.

[0012] In one embodiment, the convex surface includes a first convex surface and a second convex surface that are disposed opposite to each other along the minor axis direction of the irregular rotating body, and the concave surface includes a first concave surface and a second concave surface that are disposed opposite to each other along the major axis direction of the irregular rotating body. The first concave surface, the first convex surface, the second concave surface and the second convex surface are connected end to end in sequence along the circumference of the irregular rotating body.

[0013] In one embodiment, the first convex surface and the second convex surface are symmetrically arranged in the minor axis direction of the irregular rotating body;

[0014] And / or, the first concave surface and the second concave surface are symmetrically arranged in the major axis direction of the irregular rotating body.

[0015] In one embodiment, the projection of the concave surface onto a plane perpendicular to the axial direction of the irregular rotating body is a concave profile.

[0016] The minimum radius of the concave profile is greater than the radius of the end of the abutment that engages with the groove;

[0017] And / or, the concave profile has a first endpoint and a second endpoint, and the included angle formed by the sequential connection of the first endpoint, the rotation center of the irregular rotating body and the second endpoint does not exceed 90 degrees.

[0018] In one embodiment, the concave surface includes a first concave surface and a second concave surface arranged radially opposite to each other along the irregular rotating body, the first concave surface forming a first groove and the second concave surface forming a second groove;

[0019] The abutment is provided on one side of the irregular rotating body. When the knob is rotated relative to the base to a preset position, the end of the abutment is engaged in the first groove or the second groove.

[0020] Alternatively, the abutment is provided on each of the opposite sides of the irregular rotating body. When the knob is rotated relative to the base to a preset position, the end of one of the abutments is engaged in the first groove, and the end of the other abutment is engaged in the second groove.

[0021] In one embodiment, the knob is fixedly connected to the trigger, and the abutment is elastically and telescopically mounted on the base. When the knob rotates relative to the base, it drives the trigger to rotate relative to the abutment.

[0022] In one embodiment, the trigger further includes a boss disposed on the side of the irregular rotating body near the knob. The two sides of the boss are respectively provided with a first positioning rib and a second positioning rib of different specifications. The knob has a first positioning groove adapted to the first positioning rib and a second positioning groove adapted to the second positioning rib. The first positioning rib is inserted into the first positioning groove and the second positioning rib is inserted into the second positioning groove.

[0023] And / or, the trigger further includes a boss located on the side of the irregular rotating body near the knob, the knob having at least two connecting portions extending toward the irregular rotating body, the at least two connecting portions surrounding and forming a receiving space for receiving the boss, and the irregular rotating body having an assembly portion that is connected one-to-one with the connecting portions.

[0024] In one embodiment, the base includes a base body and a mounting portion. The mounting portion is located on the side of the base body facing the trigger member. The trigger member has a slot for the mounting portion to be inserted into, and the trigger member is rotatably sleeved around the mounting portion.

[0025] In one embodiment, the abutting member includes a push rod and an elastic member. The push rod is axially movably mounted on the base. One end of the push rod abuts against the irregular rotating body. The elastic member elastically abuts between the push rod and the base and is capable of elastic deformation along the axial direction of the push rod.

[0026] In one embodiment, the base includes a first limiting part and a second limiting part that are opposite to each other and spaced apart. The top rod includes a first rod segment, a shoulder segment and a second rod segment connected sequentially along the axial direction. The free end of the first rod segment abuts against the irregular rotating body. The first limiting part supports the first rod segment, the second limiting part supports the second rod segment, and the shoulder segment is located between the first limiting part and the second limiting part.

[0027] In one embodiment, the knob device further includes a fixing member, the fixing member and the base forming a receiving cavity for accommodating the top rod portion, the receiving cavity having through holes for the first rod segment and the second rod segment to pass through respectively, and the shoulder segment and the elastic member being disposed within the receiving cavity.

[0028] In one embodiment, the knob device further includes a panel with a through hole. The base is fixed to one side of the panel. One end of the knob near the base passes through the through hole and rotates with the base. The other end of the knob protrudes from the side of the panel away from the base. One end of the knob near the base has a fastener that engages with the side of the panel facing the base. The side of the panel facing the base has a stop that engages with the fastener to limit the circumferential rotation of the knob.

[0029] In one embodiment, the outer peripheral surface of the irregular rotating body forms the irregular curved surface, the irregular curved surface has a concave surface, the concave surface is configured to form a groove for the end of the abutment to be engaged, the buckle body is disposed corresponding to the concave surface, and the projection of the buckle body and the concave surface on the radial direction of the knob at least partially overlaps.

[0030] In one embodiment, the knob device further includes a permanent magnet disposed on the knob and a magnetic induction module disposed on the base. The permanent magnet can generate a non-uniform magnetic field as the knob rotates, and the magnetic induction module is used to sense changes in the magnetic field and output corresponding electrical signals.

[0031] In one embodiment, the knob is provided with a mounting cavity, the mounting cavity having a mounting port for inserting the permanent magnet, the permanent magnet being fixed in the mounting cavity, and the knob device further includes an end cap covering the mounting port;

[0032] And / or, the base is provided with a mounting groove, the mounting groove having a mounting opening for the magnetic induction module to be installed, the magnetic induction module being at least partially housed in the mounting groove, and the base having a limiting buckle for limiting the magnetic induction module on the side near the mounting opening.

[0033] The present invention also proposes an electrical device including the knob device described above.

[0034] In one embodiment, the electrical equipment has a water system, the water system is equipped with a flow regulating valve, and the knob device is used to control the flow regulating valve to regulate the flow of the water system.

[0035] The technical solution of this invention provides a feedback component between the base and the knob. This component includes a trigger and a stop. The trigger comprises a shaped rotating body with an irregular curved surface, and the stop can elastically deform and abut against this surface. One of the trigger and the stop is connected to the knob, and the other to the base. When the knob rotates relative to the base, it drives either the trigger or the stop to rotate, causing relative rotation between them. During this relative rotation, the irregular curved surface of the rotating body presses against the stop. Due to the non-uniform undulations of the curved surface, the stop undergoes non-uniform elastic deformation, generating a non-uniform feedback force. This provides clear feedback to the user during knob adjustment, allowing them to perceive the adjustment amount based on changes in the feedback force and quickly position the knob to the target location. Furthermore, this knob device achieves multiple feedback mechanisms—tactile and auditory—through its mechanical structure, eliminating the need for additional electronic units. It is simple, reliable, and cost-effective. Attached Figure Description

[0036] 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 the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of a structure of an embodiment of the knob device provided by the present invention;

[0038] Figure 2 for Figure 1 A cross-sectional structural diagram of the central knob device in its first state;

[0039] Figure 3 for Figure 1 A cross-sectional view of the second state of the central knob device;

[0040] Figure 4 for Figure 1 Exploded view of the central knob mechanism;

[0041] Figure 5 A schematic diagram of the structure of an embodiment of the knob of the knob device provided by the present invention;

[0042] Figure 6 A schematic diagram of the structure of an embodiment of the trigger element of the knob device provided by the present invention;

[0043] Figure 7 for Figure 6 Top view of the trigger element;

[0044] Figure 8 for Figure 6 A structural schematic diagram of the trigger element from another perspective;

[0045] Figure 9 A schematic diagram of the structure of an embodiment of the base of the knob device provided by the present invention;

[0046] Figure 10 A schematic diagram of another embodiment of the knob device provided by the present invention;

[0047] Figure 11 for Figure 10 Exploded view of the central knob mechanism.

[0048] Explanation of icon numbers:

[0049] 100. Knob device; 10. Base; 11. Base body; 12. Mounting part; 13. Support rib; 14. First limiting part; 15. Second limiting part; 16. Snap-fit ​​part; 17. Mounting groove; 18. Limiting buckle; 20. Knob; 21. First positioning groove; 22. Second positioning groove; 23. Connecting part; 24. Mounting cavity; 25. Buckle body; 26. Stepped surface; 30. Trigger element; 31. Irregularly shaped rotating body; 311. Irregularly shaped curved surface; 311a. First convex surface; 311b. Second convex surface; 311c. First Concave surface; 311d, second concave surface; 3111, first groove; 3112, second groove; 312, protruding tooth; 313, assembly part; 32, boss; 33, first positioning rib; 34, second positioning rib; 35, slot; 36, flange; 40, abutment; 41, push rod; 411, first rod segment; 412, shoulder segment; 413, second rod segment; 42, elastic element; 50, fixing element; 60, permanent magnet; 70, magnetic induction module; 80, end cap; 90, panel; 91, through hole; 92, stop part.

[0050] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0053] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, 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 impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0054] A knob is a common control unit widely used in various household appliances to regulate temperature, brightness, water flow, etc. Depending on the requirements, a knob can be continuously rotated or rotated to a specific position. Currently, most knobs used in shower equipment are continuously rotating knobs. These knobs allow for stepless adjustment, but they lack clear feedback, making it difficult for users to perceive the adjustment amount and quickly position the knob to the desired location.

[0055] This invention proposes a knob device 100. By optimizing the structure of the knob device 100, it can provide clear feedback to the user when adjusting the knob 20, so that the user can perceive the adjustment amount and quickly position the knob 20 to the target position.

[0056] The knob device 100 is applied to electrical appliances, including but not limited to controlling the temperature, brightness, and water flow of the electrical appliances. For example, the knob device 100 can be applied to electrical appliances with a water system, adjusting the water temperature or flow rate of the water system. As another example, the knob device 100 can be applied to electrical appliances with a light source, adjusting the brightness and color temperature of the light source. Of course, the knob device 100 can also be applied to other types of electrical appliances, which will not be listed here. The following explanation mainly uses the use of the knob device 100 to adjust the water flow of a shower device as an example.

[0057] Please see Figures 1 to 3In one embodiment of the present invention, the knob device 100 includes a base 10 and a knob 20, which are rotatably engaged with the base 10. In practical applications, the base 10 remains fixed, and the knob 20 is rotated relative to the base 10 by turning it. The user can rotate the knob 20 to a preset target position according to the target adjustment amount to adjust the target parameters of the electrical device (e.g., the water flow of a shower device). The base 10 constitutes the main support structure of the knob device 100. The base 10 can be a one-piece structure or formed by combining multiple components. The knob 20 and the base 10 can be rotatably connected directly or indirectly to allow the knob 20 to rotate relative to the base 10. Optionally, the knob 20 is cylindrical to provide a better feel when turning it. Of course, the knob 20 can also be a square column, a sphere, or other irregular shape. Optionally, the outer peripheral surface of the knob 20 is provided with markings (e.g., scale lines or protrusions) to allow the user to clearly understand the rotation position of the knob 20.

[0058] To enable users to perceive the adjustment amount and quickly position knob 20 to the target location, please combine... Figure 2 and Figure 6 In this embodiment, the knob device 100 further includes a feedback component, which includes a trigger 30 and a stop 40. One of the trigger 30 and the stop 40 is connected to the knob 20, and the other is connected to the base 10, so that when the knob 20 rotates relative to the base 10, the trigger 30 and the stop 40 can rotate relative to each other. The trigger 30 includes an irregularly shaped rotating body 31, which has an irregularly shaped curved surface 311. The stop 40 can elastically deform and abut against the irregularly shaped curved surface 311. When the trigger 30 and the stop 40 rotate relative to each other, the irregularly shaped curved surface 311 squeezes the stop 40, so that the stop 40 undergoes elastic deformation and generates a non-uniformly changing feedback force.

[0059] In this embodiment, the feedback component includes a trigger element 30 and a stop element 40. One of the trigger element 30 and the stop element 40 is connected to the knob 20, and the other is connected to the base 10. For example, the trigger element 30 can be connected to the knob 20, and the stop element 40 can be mounted on the base 10. In this way, when the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger element 30 to rotate as well, so that the trigger element 30 can rotate relative to the stop element 40. Alternatively, the trigger element 30 can be mounted on the base 10, and the stop element 40 can be mounted on the knob 20. In this way, when the knob 20 rotates relative to the base 10, the knob 20 can drive the stop element 40 to rotate as well, so that the stop element 40 can rotate relative to the trigger element 30.

[0060] The trigger element 30 includes an irregularly shaped rotating body 31, which has an irregularly shaped curved surface 311. The irregularly shaped curved surface 311 refers to an irregular curved surface, typically formed by connecting multiple curved surfaces with different degrees and directions of curvature, resulting in a non-uniform undulating variation. The irregularly shaped curved surface 311 can be formed at various locations on the irregularly shaped rotating body 31. For example, it can be formed on the outer peripheral surface of the irregularly shaped rotating body 31; or on the axial end face of the irregularly shaped rotating body 31; or, when the irregularly shaped rotating body 31 is annular, it can be formed on the inner and / or outer annular surfaces of the irregularly shaped rotating body 31. For example, the orthographic projection of the irregular rotating body 31 in the axial direction can be elliptical, olive-shaped, star-shaped or other irregular shapes, and the outer peripheral surface of the irregular rotating body 31 forms an irregular curved surface 311.

[0061] The abutment member 40 elastically deforms and abuts against the irregular curved surface 311. The number of abutment members 40 can be one, two, or more. Optionally, two abutment members 40 are provided, symmetrically arranged on both radial sides of the irregular rotating body 31. The abutment member 40 can be a single component made of an elastic material, or a combined component formed by combining a rigid component (e.g., a push rod 41) and an elastic component 42, as long as it ensures that the abutment member 40 can elastically deform when the trigger member 30 rotates relative to the abutment member 40. Optionally, the abutment member 40 elastically extends and retracts against the irregular curved surface 311. It is understood that after the abutment member 40 undergoes elastic deformation, it has a tendency to recover its elastic deformation, thereby generating a reverse elastic feedback force. The vibration generated by this elastic feedback force allows the user to experience a sense of resistance and friction sound, obtaining tactile and auditory feedback. Furthermore, due to the non-uniform undulations of the irregular curved surface 311, the abutment 40 can generate non-uniform feedback force. This allows the user to experience different feedbacks, enabling them to perceive the adjustment amount based on changes in the feedback force and quickly position the knob 20 to the target location. After prolonged use of the feedback-enabled knob 20, the user can accurately adjust it to the target position through inertia. Moreover, this knob device 100 achieves multiple feedback mechanisms—tactile and auditory—through its mechanical structure, without relying on additional electronic units, making it simple, reliable, and low-cost.

[0062] It is understandable that, depending on the different positions of the irregular curved surface 311 formed on the irregular rotating body 31, the abutment 40 and the irregular rotating body 31 can have various matching methods. For example, when the outer peripheral surface of the irregular rotating body 31 forms the irregular curved surface 311, the abutment 40 can abut against the outer peripheral side of the irregular rotating body 31; as another example, when the axial end face of the irregular rotating body 31 forms the irregular curved surface 311, the abutment 40 can abut against the axial side of the irregular rotating body 31; as yet another example, when the irregular rotating body 31 is arranged in a ring shape, and the inner ring surface of the irregular rotating body 31 forms the irregular curved surface 311, the abutment 40 can be placed in the inner cavity of the irregular rotating body 31 and abut against the inner peripheral side of the irregular rotating body 31.

[0063] The technical solution of the present invention provides a feedback component between the base 10 and the knob 20. The feedback component includes a trigger 30 and a stop 40. The trigger 30 includes an irregularly shaped rotating body 31 with an irregularly shaped curved surface 311. The stop 40 can elastically deform and abut against the irregularly shaped curved surface 311. One of the trigger element 30 and the abutment element 40 is connected to the knob 20, and the other is connected to the base 10. When the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger element 30 or the abutment element 40 to rotate, so that the trigger element 30 and the abutment element 40 can rotate relative to each other. When the trigger element 30 and the abutment element 40 rotate relative to each other, the irregular curved surface 311 of the irregular rotating body 31 presses against the abutment element 40. Because the irregular curved surface 311 has non-uniform undulations, the abutment element 40 can undergo non-uniform elastic deformation and generate non-uniform feedback force. In this way, a clear feedback can be provided to the user during the adjustment of the knob 20. The user can perceive the adjustment amount according to the change of feedback force, thereby quickly positioning the knob 20 to the target position. Furthermore, this knob device 100 can achieve multiple feedback of touch and sound through mechanical structure, without relying on additional electronic units, which is simple, reliable and low cost.

[0064] like Figure 6 As shown, in one embodiment, the irregular rotating body 31 further includes a plurality of protruding teeth 312 arranged at intervals along the extension direction of the irregular curved surface 311, and a groove is formed between two adjacent protruding teeth 312, and the end of the abutment 40 is used to engage with the groove.

[0065] In this embodiment, the irregular rotating body 31 can be configured as an irregular gear with multiple protruding teeth 312. The irregular curved surface 311 of the irregular rotating body 31 is also provided with multiple protruding teeth 312 at intervals along its extension direction. When the irregular rotating body 31 rotates relative to the abutment 40, the collision between the protruding teeth 312 and the abutment 40 can generate clearer vibration feedback, allowing the user to more clearly perceive the resistance and friction sound, obtaining clearer tactile and auditory feedback. This enables the user to perceive the adjustment amount based on changes in the feedback force, thereby quickly and accurately positioning the knob 20 to the target position. When the knob 20 rotates to the preset position, the end of the abutment 40 is located in the groove between the two protruding teeth 312. The protruding teeth 312 on both sides can limit the abutment 40, allowing the knob 20 to only hover in a few specific positions, thus limiting the adjustment level.

[0066] To avoid a feeling of sticking when adjusting the knob 20, optionally, the outer surface of the protruding teeth 312 is smoothly connected to the irregular curved surface 311. Optionally, the outer peripheral surface of the irregular rotating body 31 forms the irregular curved surface 311, and multiple protruding teeth 312 are arranged at intervals along the circumference of the irregular rotating body 31. Optionally, the protruding teeth 312 are configured as protruding ridges extending along the axial direction of the irregular rotating body 31.

[0067] In one embodiment, the outer peripheral surface of the irregular rotating body 31 forms an irregular curved surface 311, which includes a convex surface, the middle of which protrudes toward the side away from the rotation center of the irregular rotating body 31.

[0068] In this embodiment, the number of convex surfaces can be one, two, or more. When there are multiple convex surfaces (i.e., two or more), the multiple convex surfaces can be arranged symmetrically or asymmetrically, and the shapes of the multiple convex surfaces can be the same or different, without specific limitations. The middle part of the convex surface protrudes towards the side away from the rotation center of the irregular rotating body 31. When the abutment 40 moves along the convex surface, the convex surface squeezes the abutment 40, causing the abutment 40 to produce non-uniform elastic deformation, thereby generating a non-uniform feedback force.

[0069] In one embodiment, the irregular curved surface 311 further includes a concave surface, and the concave surface and the convex surface are arranged circumferentially along the irregular rotating body 31. The concave surface forms a groove for the end of the abutment member 40 to engage.

[0070] In this embodiment, the number of concave surfaces can be one, two, or more. When the number of concave surfaces is multiple (i.e., two or more), the multiple concave surfaces can be arranged symmetrically or asymmetrically, and the shapes of the multiple concave surfaces can be the same or different, without specific limitations. The concave surfaces and convex surfaces are arranged along the circumference of the irregular rotating body 31. Optionally, the irregular curved surface 311 has multiple convex surfaces and multiple concave surfaces, and the convex surfaces and concave surfaces are arranged alternately along the circumference of the irregular rotating body 31. The concave surfaces form grooves for the end of the abutment 40 to engage. Thus, when the abutment 40 moves a certain distance along the convex surface, the end of the abutment 40 can slide into the groove, and the groove wall can limit the abutment 40 so that the knob 20 is suspended. In practical applications, it can be set so that when the knob 20 is in the initial position and the maximum adjustment amount, the end of the abutment 40 is in the groove. At this time, the elastic deformation (i.e., compression) of the abutment 40 is the smallest. When the knob 20 is started from the initial position or the maximum adjustment amount, a larger external force is required to make the end of the abutment 40 slide out of the groove. This can effectively provide distinctive tactile feedback.

[0071] like Figure 6 and Figure 7 As shown, in one embodiment, the projection of the irregular rotating body 31 onto a plane perpendicular to its axis has intersecting major and minor axes. The irregular rotating body 31 has a convex surface on at least one side along its minor axis and a concave surface on at least one side along its major axis.

[0072] In this embodiment, the projection of the irregularly shaped rotating body 31 onto a plane perpendicular to its axial direction has intersecting major and minor axes, causing the axial projection of the irregularly shaped rotating body 31 to generally exhibit an olive shape or ellipse, thicker in the middle and smaller at both ends. That is, the irregularly shaped rotating body 31 exhibits a change in diameter along its circumference. The irregularly shaped curved surface 311 includes a convex surface located on at least one side along the minor axis of the irregularly shaped rotating body 31, and a concave surface located on at least one side along the major axis of the irregularly shaped rotating body 31. The number and arrangement of the convex and concave surfaces along the circumference of the irregularly shaped rotating body 31 can vary. For example, the irregularly shaped rotating body 31 may have a convex surface on one side along its minor axis and a concave surface on one side along its major axis, in which case one convex surface and one concave surface are arranged along the circumference of the irregularly shaped rotating body 31. Alternatively, the irregularly shaped rotating body 31 may have convex surfaces on both sides along its minor axis and a concave surface on one side along its major axis. In this case, two convex surfaces and one concave surface are arranged circumferentially around the irregularly shaped rotating body 31, with the concave surface located between the two convex surfaces. Alternatively, the irregularly shaped rotating body 31 may have a convex surface on one side along its minor axis and concave surfaces on both sides along its major axis. In this case, one convex surface and two concave surfaces are arranged circumferentially around the irregularly shaped rotating body 31, with the convex surface located between the two concave surfaces. Alternatively, the irregularly shaped rotating body 31 may have convex surfaces on both sides along its minor axis and concave surfaces on both sides along its major axis. In this case, two concave surfaces and two convex surfaces are arranged alternately circumferentially around the irregularly shaped rotating body 31.

[0073] like Figure 7 As shown, in one embodiment, the convex surface includes a first convex surface 311a and a second convex surface 311b disposed opposite each other along the minor axis direction of the irregular rotating body 31, and the concave surface includes a first concave surface 311c and a second concave surface 311d disposed opposite each other along the major axis direction of the irregular rotating body 31. The first concave surface 311c, the first convex surface 311a, the second concave surface 311d and the second convex surface 311b are arranged along the circumference of the irregular rotating body 31. Connect the beginning and end in sequence.

[0074] In this embodiment, the first convex surface 311a and the second convex surface 311b are located on both sides of the minor axis of the irregular rotating body 31, and the middle part of the first convex surface 311a and the middle part of the second convex surface 311b protrude toward the side away from each other. The first concave surface 311c and the second concave surface 311d are located on both sides of the major axis of the irregular rotating body 31. The first concave surface 311c forms a first groove 3111 for the end of the abutment 40 to be engaged, and the second concave surface 311d forms a second groove 3112 for the end of the abutment 40 to be engaged. The first concave surface 311c, the first convex surface 311a, the second concave surface 311d and the second convex surface 311b are connected end to end along the circumference of the irregular rotating body 31. Optionally, the first groove 3111 and the second groove 3112 are adapted to the shape of the abutment 40 facing the end of the irregular rotating body 31. For example, the first groove 3111 and the second groove 3112 can be designed as an arc groove, a V-shaped groove or other shapes.

[0075] When the abutment 40 moves along the first convex surface 311a or the second convex surface 311b, the abutment 40 is compressed by the first convex surface 311a or the second convex surface 311b, causing the abutment 40 to undergo non-uniform elastic deformation, thereby generating a non-uniform feedback force. Taking the cooperation between the abutment 40 and the first convex surface 311a as an example, when the abutment 40 slides in the extending direction of the first convex surface 311a, the elastic deformation of the abutment 40 shows a trend of increasing and then decreasing. When the abutment 40 is located at the most convex position of the first convex surface 311a, its elastic deformation reaches its maximum. Optionally, the first convex surface 311a is provided with a plurality of protruding teeth 312 spaced apart and evenly distributed along its extension direction, and the second convex surface 311b is provided with a plurality of protruding teeth 312 spaced apart and evenly distributed along its extension direction, so that the abutment 40 can be engaged in the slot between any two adjacent protruding teeth 312 during the movement of the abutment 40 relative to the first convex surface 311a or the second convex surface 311b, so that the knob 20 is suspended. When the knob 20 is in the initial position and the maximum adjustment amount, the end of the abutment 40 is located in the first groove 3111 or the second groove 3112. At this time, the elastic deformation (i.e., the compression) of the abutment 40 is the smallest. When the knob 20 is started from the initial position or the maximum adjustment amount position, a larger external force is required to make the end of the abutment 40 slide out of the first groove 3111 or the second groove 3112, so as to effectively provide distinctive tactile feedback.

[0076] Optionally, the first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b are smoothly connected in sequence to ensure that the abutment 40 can slide smoothly out of the first groove 3111 or the second groove 3112, avoiding jamming. Optionally, the parts where the first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b meet are transitioned by an arc.

[0077] The first convex surface 311a and the second convex surface 311b can be symmetrically or asymmetrically arranged in the minor axis direction of the irregular rotating body 31. The first concave surface 311c and the second concave surface 311d can be symmetrically or asymmetrically arranged in the major axis direction of the irregular rotating body 31.

[0078] Optionally, the first convex surface 311a and the second convex surface 311b are arranged opposite to each other and symmetrically in the minor axis direction of the irregular rotating body 31. And / or, the first concave surface 311c and the second concave surface 311d are arranged opposite to each other and symmetrically in the major axis direction of the irregular rotating body 31. This simplifies the shape and structure of the irregular rotating body 31 and facilitates manufacturing.

[0079] To ensure a more stable engagement between the recessed groove and the abutment, such as Figure 7 As shown, in one embodiment, the projection of the concave surface onto a plane perpendicular to the axial direction of the irregular rotating body 31 is a concave profile; the minimum radius of the concave profile is greater than the radius of the end of the abutment 40 used to engage with the groove.

[0080] In this embodiment, as Figure 7 As shown, taking the first concave surface 311c as an example, the projection of the first concave surface 311c onto a plane perpendicular to the axial direction of the irregular rotating body 31 is the first concave surface profile. The first concave surface profile is arc-shaped, and the arc center O1 of the first concave surface profile is located on the side of the first concave surface 311c away from the rotation center O of the irregular rotating body 31. The line connecting O1 and O coincides with the major axis of the irregular rotating body 31. The distance between any point on the first concave surface profile and the line connecting it to the arc center O1 is the radius r of the first concave surface profile. The minimum value of the radius r of the first concave surface profile is greater than the top. The radius of the end of the abutment 40 that engages with the first groove 3111 is such that when the end of the abutment 40 is engaged in the first groove 3111, the first concave surface can completely cover the end of the abutment 40, making the engagement between the first groove 3111 and the abutment 40 more stable. Only when sufficient external force is applied can the end of the abutment 40 slide out of the first groove 3111, thus preventing the abutment 40 from accidentally sliding out of the first groove 3111 in case of accidental contact, thereby improving the reliability of the knob device 100. For example, in the following embodiment, the abutment 40 includes a push rod 41, which includes a first rod segment 411, a shoulder segment 412, and a second rod segment 413 connected sequentially along the axial direction. The free end of the first rod segment 411 abuts against the irregular rotating body 31, and the minimum radius of the first concave surface profile is greater than the radius of the first rod segment 411. The design of the second concave surface 311d is similar to that of the first concave surface 311c, and will not be described in detail here.

[0081] like Figure 7As shown, in one embodiment, the projection of the concave surface onto a plane perpendicular to the axial direction of the irregular rotating body 31 is a concave profile; the concave profile has a first endpoint and a second endpoint, and the included angle formed by sequentially connecting the first endpoint, the rotation center of the irregular rotating body 31, and the second endpoint does not exceed 90 degrees.

[0082] In this embodiment, taking the first concave surface 311c as an example, the projection of the first concave surface 311c onto a plane perpendicular to the axial direction of the irregular rotating body 31 is the first concave profile. The first concave profile is arc-shaped and has a first endpoint A and a second endpoint B. The included angle formed by connecting the first endpoint A, the rotation center O of the irregular rotating body 31, and the second endpoint B in sequence is α, where α ≤ 90°. The design of the second concave surface 311d is similar to that of the first concave surface 311c, and will not be described again here. In this way, the proportion of the first concave surface 311c and / or the second concave surface 311d to the entire irregular curved surface 311 is not too large, thereby ensuring that the first convex surface 311a and / or the second convex surface 311c can occupy as much of the irregular curved surface 311 as possible, so as to ensure that the abutment 30 has sufficient movement stroke to widen the adjustment range of the knob 20.

[0083] In one embodiment, the concave surface includes a first concave surface 311c and a second concave surface 311d arranged radially opposite to each other along the irregular rotating body 31. The first concave surface 311c forms a first groove 3111, and the second concave surface 311d forms a second groove 3112. For example, the first concave surface 311c and the second concave surface 311d are located on both sides of the long axis of the irregular rotating body 31. Correspondingly, a first groove 3111 and a second groove 3112 are formed on both sides of the long axis of the irregular rotating body 31 for the end of the abutment 40 to engage. The number of abutments 40 can be set to one or more as needed.

[0084] For example, in one embodiment, a stop member 40 is provided on one side of the irregular rotating body 31. When the knob 20 is rotated relative to the base 10 to a preset position, the end of the stop member 40 is engaged in the first groove 3111 or the second groove 3112.

[0085] In this embodiment, there is one abutment member 40. When the knob 20 is rotated, the abutment member 40 can move along the irregular curved surface 311, so that the abutment member 40 can switch between the first groove 3111 and the second groove 3112. For example, when the knob 20 is in the initial position, the end of the abutment member 40 is engaged in the first groove 3111, and when the knob 20 is rotated to the maximum adjustment position, the end of the abutment member 40 is engaged in the second groove 3112.

[0086] For example, such as Figure 2As shown, in another embodiment, the irregular rotating body 31 is provided with abutment members 40 on opposite sides. When the knob 20 is rotated relative to the base 10 to a preset position, the end of one abutment member 40 is engaged in the first groove 3111, and the end of the other abutment member 40 is engaged in the second groove 3112.

[0087] In this embodiment, the preset positions can be the initial position and the maximum adjustment position. Two abutment members 40 are provided. When the knob 20 is in the initial position and the maximum adjustment position, the ends of the two abutment members 40 are respectively located in the first groove 3111 and the second groove 3112. At this time, the elastic deformation (i.e., compression) of the abutment members 40 is minimal. When the knob 20 is activated from the initial position or the maximum adjustment position, a larger external force is required to make the ends of the abutment members 40 slide out of the first groove 3111 and the second groove 3112. This effectively provides distinctive tactile feedback. Furthermore, by providing two abutment members 40, when the knob 20 is in the initial position and the maximum adjustment position, the ends of the two abutment members 40 are respectively located in the first groove 3111 and the second groove 3112, allowing the knob 20 to be more stably suspended in the initial position and the maximum adjustment position.

[0088] like Figure 2 As shown, in one embodiment, the knob 20 is connected and fixed to the trigger member 30, and the abutment member 40 is elastically and telescopically mounted on the base 10. When the knob 20 rotates relative to the base 10, it drives the trigger member 30 to rotate relative to the abutment member 40.

[0089] In this embodiment, the knob 20 and the trigger 30 can be an integral structure or separate structures that are then assembled. The knob 20 and the trigger 30 are connected and fixed using methods including, but not limited to, snap-fit, fastener connection, and adhesive bonding. The abutment 40 is elastically and telescopically mounted on the base 10, with one end of the abutment 40 along its telescopic direction abutting against the irregular curved surface 311 of the irregular rotating body 31. Thus, when the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger 30 to rotate as well, causing relative movement between the trigger 30 and the abutment 40. The irregular curved surface 311 of the irregular rotating body 31 compresses the abutment 40, causing the abutment 40 to undergo non-uniform elastic compression deformation, thereby generating a reverse, non-uniformly changing elastic feedback force. The vibration generated by this elastic feedback force allows the user to experience a sense of resistance and friction sound, obtaining tactile and auditory feedback.

[0090] like Figure 5 and Figure 6As shown, in one embodiment, the trigger 30 further includes a boss 32 disposed on the side of the irregular rotating body 31 near the knob 20. The two sides of the boss 32 are respectively provided with a first positioning rib 33 and a second positioning rib 34 of different specifications. The knob 20 has a first positioning groove 21 adapted to the first positioning rib 33 and a second positioning groove 22 adapted to the second positioning rib 34. The first positioning rib 33 is inserted into the first positioning groove 21 and the second positioning rib 34 is inserted into the second positioning groove 22.

[0091] In this embodiment, the boss 32 is located in the middle of the irregular rotating body 31 and protrudes towards the side near the knob 20. The boss 32 includes, but is not limited to, being cylindrical, square columnar, or other irregular structures. The boss 32 has a first positioning rib 33 and a second positioning rib 34 on both radial sides of the knob 20. The first positioning rib 33 and the second positioning rib 34 have different specifications, which can be due to different shapes or different sizes; that is, the first positioning rib 33 and the second positioning rib 34 are asymmetrical structures. Correspondingly, the knob 20 has a first positioning groove 21 that mates with the first positioning rib 33 and a second positioning groove 22 that mates with the second positioning rib 34. Thus, when assembling the knob 20 and the trigger member 30, assembly can only be achieved by inserting the first positioning rib 33 into the first positioning groove 21 and the second positioning rib 34 into the second positioning groove 22; otherwise, assembly is impossible, thereby achieving a foolproof assembly function. For example, the first positioning rib 33 and the second positioning rib 34 are both elongated strips extending along the axial direction of the irregular rotating body 31. The width of the first positioning rib 33 is different from the width of the second positioning rib 34. Correspondingly, the width of the first positioning groove 21 is adapted to the width of the first positioning rib 33, and the width of the second positioning groove 22 is adapted to the width of the second positioning rib 34.

[0092] like Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, the trigger 30 further includes a boss 32 disposed on the side of the irregular rotating body 31 near the knob 20. The knob 20 has at least two connecting portions 23 extending toward the irregular rotating body 31. The at least two connecting portions 23 surround and form an accommodating space for accommodating the boss 32. The irregular rotating body 31 is provided with an assembly portion 313 that is connected one-to-one with the connecting portions 23.

[0093] In this embodiment, the boss 32 is located in the middle of the irregular rotating body 31 and protrudes towards the side near the knob 20. The boss 32 includes, but is not limited to, being cylindrical, square columnar, or other irregular structures. The knob 20 includes a body and at least two connecting portions 23 located at the bottom of the body. The irregular rotating body 31 has assembly portions 313 corresponding to the connecting portions 23. When the knob 20 and the trigger 30 are assembled in place, the connecting portion 23 of the knob 20 is connected and fixed to the assembly portion 313 of the irregular rotating body 31, and the boss 32 is located within the accommodating space, making the assembly of the knob 20 and the trigger 30 more stable and reliable. Optionally, the connecting portion 23 is columnar and extends towards the irregular rotating body 31. The connecting portion 23 and the assembly portion 313 are respectively provided with connecting holes for fasteners (such as screws, bolts, etc.) to be inserted, and the assembly portion 313 and the connecting portion 23 can be locked and fixed by fasteners. Of course, the connecting part 23 and the assembly part 313 can also be connected and fixed by means of snap-fit ​​connection, interference fit, etc.

[0094] Please refer to Figure 2 , Figure 8 and Figure 9 In one embodiment, the base 10 includes a base body 11 and a mounting part 12. The mounting part 12 is located on the side of the base body 11 facing the trigger member 30. The trigger member 30 is provided with a slot 35 for the mounting part 12 to be inserted into. The trigger member 30 is rotatably sleeved around the mounting part 12.

[0095] In this embodiment, the trigger 30 has a slot 35 open towards the base 10. The mounting portion 12 of the base 10 is inserted into the slot 35, so that the mounting portion 12 can support the knob 20 and the trigger 30, making the assembly of the three more stable and reliable. Furthermore, the trigger 30 can rotate relative to the mounting portion 12, thus not affecting the knob 20's ability to rotate the trigger 30 relative to the base 10. Optionally, the trigger 30 includes a shaped rotating body 31 and a boss 32 located on the side of the shaped rotating body facing the knob 20. A slot 35 is formed inside the boss 32, extending along the height direction of the boss 32 and penetrating the side of the shaped rotating body 31 near the base 10. Optionally, the boss 32 includes a top wall and an outer ring wall and an inner ring wall extending from the top wall toward the base 10. The outer ring wall surrounds the outer periphery of the inner ring wall, and an annular slot 35 is formed between the outer ring wall and the inner ring wall. Correspondingly, the mounting part 12 is hollow cylindrical and is inserted between the outer ring wall and the inner ring wall of the boss 32 to ensure assembly stability.

[0096] Please refer to Figure 2 , Figure 8 and Figure 9In one embodiment, the base 10 further includes a support rib 13 disposed on the side of the base body 11 facing the trigger member 30, and the outer periphery of the mounting portion 12 is provided with at least one ring of support ribs 13, which are used to support the irregular rotating body 31. In this embodiment, by supporting the irregular rotating body 31 with the support ribs 13, the contact area between the irregular rotating body 31 and the base 10 can be reduced, thereby reducing the frictional resistance when the irregular rotating body 31 rotates. The number of support ribs 13 can be adaptively set according to the cross-sectional area of ​​the irregular rotating body 31 to ensure stable support for the irregular rotating body 31. For example, the outer periphery of the mounting portion 12 is provided with two rings of support ribs 13, which are spaced apart.

[0097] like Figure 2 and Figure 9 As shown, in one embodiment, the trigger 30 further includes a flange 36 on the side of the irregular rotating body 31 facing the seat body 11, the flange 36 forming an inlet for the mounting part 12 to be inserted into the slot 35.

[0098] like Figure 2 As shown, in one embodiment, the abutment 40 includes a push rod 41 and an elastic member 42. The push rod 41 is axially movable and mounted on the base 10. One end of the push rod 41 abuts against the irregular rotating body 31. The elastic member 42 elastically abuts between the push rod 41 and the base 10 and can elastically deform along the axial direction of the push rod 41.

[0099] In this embodiment, the push rod 41 is axially movable on the base 10, meaning that the push rod 41 can move relative to the base 40 along its axial direction under external force. When the irregularly shaped rotating body 31 rotates relative to the abutment 40, the irregularly shaped curved surface 311 presses against the end of the push rod 41, thereby pushing the push rod 41 to move axially. During the movement of the push rod 41, the elastic element 42 is compressed, causing the elastic element 42 to undergo elastic deformation. The vibration generated by the reaction force of the elastic element 42 allows the user to feel a sense of resistance and friction, obtaining tactile and auditory feedback. The elastic element 42 includes, but is not limited to, springs, elastic rubber columns, or other elastic structures. Optionally, the end of the push rod 41 that contacts the irregularly shaped rotating body 31 forms a spherical contact.

[0100] like Figure 2 and Figure 4 As shown, in one embodiment, the base 10 includes a first limiting part 14 and a second limiting part 15 that are opposite to and spaced apart. The top rod 41 includes a first rod segment 411, a shoulder segment 412 and a second rod segment 413 connected sequentially along the axial direction. The free end of the first rod segment 411 abuts against the irregular rotating body 31. The first limiting part 14 supports the first rod segment 411, the second limiting part 15 supports the second rod segment 413, and the shoulder segment 412 is located between the first limiting part 14 and the second limiting part 15.

[0101] In this embodiment, the cross-sectional dimension of the shoulder section 412 is larger than that of the first rod section 411 and the second rod section 413. Optionally, the elastic member 42 is sleeved around the second rod section 413, and both ends of the elastic member 42 elastically abut against the shoulder section 412 and the second limiting part 15, respectively. For example, the elastic member 42 can be a spring sleeved around the second rod section 413. The second rod section 413 can fix the elastic member 42 and guide its expansion and contraction. When the trigger member 30 rotates relative to the abutting member 40, it can squeeze the push rod 41, causing the push rod 41 to move linearly along the axial direction. The shoulder of the push rod 41 applies a force to the elastic member 42, causing the elastic member 42 to compress and deform. The elastic member 42 then generates a reverse force. The vibration generated by the reaction force of the elastic member 42 allows the user to feel a sense of resistance and friction, thus obtaining tactile and auditory feedback. The first limiting part 14 and the second limiting part 15 can support the first segment 411 and the second segment 413 of the top rod 41, and can also limit the movement range of the elastic member 42 and the shoulder. Optionally, the first limiting part 14 has a first support groove for accommodating the first segment 411, and the second limiting part 15 has a second support groove for accommodating the second segment 413. For example, the first segment 411 and the second segment 413 are cylindrical, and correspondingly, the first support groove and the second support groove can be arc-shaped grooves.

[0102] like Figure 2 , Figure 4 and Figure 9 As shown, in one embodiment, the knob device 100 further includes a fixing member 50, which and the base 10 surround to form a receiving cavity for accommodating the top rod 41. The receiving cavity has through holes for the first rod segment 411 and the second rod segment 413 to pass through respectively. The shoulder segment 412 and the elastic member 42 are disposed in the receiving cavity.

[0103] In this embodiment, the fastener 50 and the base 10 can be assembled using methods including but not limited to snap-fit ​​fixing, adhesive fixing, and screw fixing, as long as the fastener 50 and the base 10 can form a receiving cavity for partially accommodating the push rod 41. Optionally, the base 10 has a snap-fit ​​portion 16 that snaps into the fastener 50. The fastener 50 has a hollow shell structure open to one side of the base 10. The base 10 is provided with the snap-fit ​​portion 16, and the fastener 50 snaps into the snap-fit ​​portion 16 to achieve a detachable connection between the fastener 50 and the base 10. The fastener 50 and the base 10 cooperate to facilitate the installation and removal of the abutment 40. The fastener 50 can limit the vertical movement of the push rod 41 and the elastic member 42 and guide the axial movement of the push rod 41 and the elastic member 42. Optionally, the base 10 includes a base body 11 and a snap-fit ​​portion 16 disposed on the side of the base body 11 facing the abutment member 40. The snap-fit ​​portion 16 includes two elastic buckles that are opposite to each other and spaced apart, and the fixing member 50 is snapped between the two elastic buckles.

[0104] like Figure 2 and Figure 4 As shown, in one embodiment, the outer peripheral surface of the irregular rotating body 31 forms an irregular curved surface 311, the irregular curved surface 311 has a concave surface, the concave surface forms a groove for the end of the abutment 40 to be engaged, the buckle body 25 is provided corresponding to the concave surface, and the buckle body 25 and the projection of the concave surface on the radial direction of the knob 20 at least partially overlap.

[0105] In this embodiment, the number and position of the buckle body 25 and the concave surface are respectively arranged. The projections of the buckle body 25 and the concave surface on the radial side of the knob 20 at least partially overlap. Through the cooperation between the buckle body 25 and the stop part 92, and through the cooperation between the groove constructed by the concave surface and the abutment 40, the maximum rotation position of the knob 20 can be limited. Through the double limiting effect, it can be ensured that when one of them fails, the other can continue to play the limiting role, so as to ensure the reliability of the knob device 100. Optionally, the irregular curved surface 311 has a first concave surface 311c and a second concave surface 311d arranged radially opposite each other. The outer peripheral surface of the knob 20 near the base 10 is provided with two buckle bodies 25 arranged radially opposite each other. One buckle body 25 is arranged corresponding to the first concave surface 311c, and the projection of the buckle body 25 and the first concave surface 311c on the radial direction of the knob 20 is at least partially overlapping. The other buckle body 25 is arranged corresponding to the second concave surface 311d, and the projection of the buckle body 25 and the second concave surface 311d on the radial direction of the knob 20 is at least partially overlapping.

[0106] like Figure 10 and Figure 11As shown, in one embodiment, the knob device 100 further includes a panel 90, which has a through hole 91. The base 10 is fixed to one side of the panel 90. One end of the knob 20 near the base 10 passes through the through hole 91 and is rotatably engaged with the base 10. The other end of the knob 20 protrudes from the side of the panel 90 away from the base 10. One end of the knob 20 near the base 10 is provided with a fastener 25, which is fastened to the side of the panel 90 facing the base 10. The side of the panel 90 facing the base 10 is provided with a stop 92, which is used to limit the circumferential rotation of the knob 20 by engaging with the fastener 25.

[0107] In this embodiment, the knob 20 has fasteners 25 on opposite sides of its end near the base 10. These fasteners 25 are capable of elastic deformation. During assembly, the end of the knob 20 with the fasteners 25 is pressed into the side of the panel 90 near the base 10 through the through hole 91, allowing the knob 20 to rotate with the base 10. The base 10 can be connected and fixed to the panel 90 by fasteners, snap-fit ​​connections, or other means. In this way, the knob 20, panel 90, and base 10 can be assembled into a single unit, allowing the knob 20 to rotate relative to the panel 90 and the base 10. The snap-fit ​​engagement between the fasteners 25 and the panel 90 restricts the axial displacement of the knob 20, preventing it from coming out of the through hole 91. Furthermore, a stop 92 is provided on the side of the panel 90 facing the base 10. For example, the stop 92 can be a raised rib located around the through hole 91. When the knob 20 is rotated to the preset position, one of the latches 25 engages with the stop 92 to limit the circumferential rotation of the knob 20. For example, when the knob 20 starts to rotate from the initial position and the unidirectional rotation reaches 180°, the stop 92 will abut against the latch 25 on one side of the knob 20, preventing the knob 20 from being turned further in the original direction. This structure can be used to limit the circumferential rotation of the knob 20, indicating to the user that the adjustment range has reached its maximum value.

[0108] Based on the above embodiments, such as Figure 3 As shown, in one embodiment, the knob device 100 further includes a permanent magnet 60 disposed on the knob 20 and a magnetic induction module 70 disposed on the base 10. The permanent magnet 60 can generate a non-uniform magnetic field as the knob 20 rotates, and the magnetic induction module 70 is used to sense changes in the magnetic field and output corresponding electrical signals.

[0109] In this embodiment, the knob device 100 is an electromagnetic induction knob 20, with a permanent magnet 60 mounted on it. The permanent magnet 60 is fixed relative to the knob 20, and when the knob 20 rotates, it drives the permanent magnet 60 to rotate as well. The permanent magnet 60 is designed to generate a non-uniformly changing magnetic field; for example, it can be a T-shaped structure or other irregularly shaped structure. The magnetic induction module 70 is fixed to the base 10. The magnetic induction module 70 contains electronic components and control circuits that can sense changes in the magnetic field. When the knob 20 drives the permanent magnet 60 to rotate, the magnetic induction module 70 can sense changes in the magnetic field lines in space and output corresponding control signals. Thus, when the user adjusts the knob 20, the knob 20 drives the permanent magnet 60 to rotate, and the permanent magnet 60 generates a non-uniform magnetic field. After sensing the change in the magnetic field, the magnetic induction module 70 can output corresponding electrical signals to regulate target parameters such as water output, brightness, and temperature of the electrical equipment. By using an irregularly shaped permanent magnet 60 to generate a non-uniform magnetic field as the knob 20 rotates, the magnetic induction module 70 can be simplified, its size reduced, and its cost lowered.

[0110] The permanent magnet 60 can be located inside the knob 20, exposed on the outside of the knob 20, or inserted into the surface of the knob 20, as long as the permanent magnet 60 and the knob 20 remain relatively fixed, that is, their relative positions remain stationary when the knob 20 is rotated. There are various ways to fix the permanent magnet 60 to the knob 20, including but not limited to using adhesive, glue sealing, screw fixing, clips, and magnet injection molding.

[0111] To facilitate the installation of the permanent magnet 60, such as Figure 2 and Figure 4 As shown, in one embodiment, the knob 20 has a mounting cavity 24 with a mounting opening for inserting a permanent magnet 60. The permanent magnet 60 is fixed inside the mounting cavity 24. The knob device 100 also includes an end cap 80 covering the mounting opening. In this embodiment, fixing the permanent magnet 60 within the mounting cavity 24 formed by the knob 20 and the end cap 80 provides waterproofing and dustproofing for the permanent magnet 60. Optionally, the end of the knob 20 near the mounting opening has a stepped surface 26, and the end cap 80 abuts against the stepped surface 26 and covers the mounting opening. The knob 20 and the end cap 80 can be two separate entities or an inseparable entity.

[0112] To facilitate the installation of the magnetic induction module 70, such as Figure 3 and Figure 9As shown, in one embodiment, the base 10 is provided with a mounting groove 17, which has a mounting opening for the magnetic induction module 70 to be inserted. The magnetic induction module 70 is at least partially accommodated within the mounting groove 17. A limiting buckle 18 for limiting the magnetic induction module 70 is provided on the side of the base 10 near the mounting opening. In this embodiment, the mounting groove 17 is provided on the side of the base 10. During assembly, the magnetic induction module 70 is inserted into the mounting groove 17 from the mounting opening. The limiting buckle 18 limits the magnetic induction module 70, preventing it from detaching from the mounting groove 17. This assembly structure also facilitates the removal of the magnetic induction module 70 from the base 10.

[0113] This invention also proposes an electrical device including a knob device 100. The specific structure of the knob device 100 is as described in the above embodiments. Since this electrical device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The knob device 100 includes, but is not limited to, functions for controlling the flow rate, temperature, brightness, etc., of the electrical device. For example, the knob device 100 can be applied to electrical devices with a water system to adjust the water temperature or flow rate of the water system. As another example, the knob device 100 can be applied to electrical devices with a light source to adjust the brightness, color temperature, etc., of the light source.

[0114] In one embodiment, the electrical equipment has a water system, which is equipped with a flow regulating valve. A knob device 100 is used to control the flow regulating valve to regulate the flow rate of the water system.

[0115] In this embodiment, when a user needs to adjust the flow rate of the water system (e.g., inlet or outlet flow rate), they can turn the knob 20, which in turn moves the valve core of the flow regulating valve to achieve flow regulation. Optionally, when the knob device 100 has a built-in permanent magnet 60 and a magnetic induction module 70, the flow regulating valve can be an electric regulating valve electrically connected to the magnetic induction module 70. When the user adjusts the knob 20, the knob 20 drives the permanent magnet 60 to rotate, generating a non-uniform magnetic field. After sensing the change in the magnetic field, the magnetic induction module 70 can output a corresponding electrical signal, which is transmitted to the flow regulating valve to regulate the flow rate of the water system. The electrical equipment with the water system includes, but is not limited to, shower equipment, washing machines, water heaters, and water purifiers.

[0116] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A knob device, characterized in that, include: Base; The knob rotates in conjunction with the base. as well as The feedback component includes a trigger and a stop, one of which is connected to the knob and the other to the base, so that when the knob rotates relative to the base, the trigger and the stop can rotate relative to each other. The trigger includes an irregularly shaped rotating body with an irregularly shaped curved surface, and the stop can elastically deform and abut against the irregularly shaped curved surface. When the trigger and the stop rotate relative to each other, the irregularly shaped curved surface squeezes the stop, causing the stop to elastically deform and generate a non-uniformly changing feedback force.

2. The knob device as described in claim 1, characterized in that, The irregularly shaped rotating body also includes a plurality of protruding teeth arranged at intervals along the extension direction of the irregularly shaped curved surface, and a groove is formed between two adjacent protruding teeth. The end of the abutment is used to engage with the groove.

3. The knob device as described in claim 1, characterized in that, The outer peripheral surface of the irregular rotating body forms the irregular curved surface, which includes a convex surface. The middle part of the convex surface protrudes toward the side away from the rotation center of the irregular rotating body.

4. The knob device as described in claim 3, characterized in that, The irregular curved surface also includes a concave surface, which is arranged along the circumference of the irregular rotating body with the convex surface. The concave surface forms a groove for the end of the abutment to be engaged.

5. The knob device as described in claim 4, characterized in that, The projection of the irregular rotating body onto a plane perpendicular to its axis has intersecting major and minor axes. The irregular rotating body has a convex surface on at least one side along its minor axis and a concave surface on at least one side along its major axis.

6. The knob device as described in claim 5, characterized in that, The convex surface includes a first convex surface and a second convex surface that are arranged opposite each other along the minor axis direction of the irregular rotating body, and the concave surface includes a first concave surface and a second concave surface that are arranged opposite each other along the major axis direction of the irregular rotating body. The first concave surface, the first convex surface, the second concave surface and the second convex surface are connected end to end along the circumference of the irregular rotating body.

7. The knob device as described in claim 6, characterized in that, The first convex surface and the second convex surface are symmetrically arranged in the minor axis direction of the irregular rotating body; And / or, the first concave surface and the second concave surface are symmetrically arranged in the major axis direction of the irregular rotating body.

8. The knob device as described in claim 4, characterized in that, The projection of the concave surface onto a plane perpendicular to the axial direction of the irregular rotating body is a concave profile. The minimum radius of the concave profile is greater than the radius of the end of the abutment that engages with the groove; And / or, the concave profile has a first endpoint and a second endpoint, and the included angle formed by the sequential connection of the first endpoint, the rotation center of the irregular rotating body and the second endpoint does not exceed 90 degrees.

9. The knob device as claimed in claim 4, characterized in that, The concave surface includes a first concave surface and a second concave surface that are radially opposite to each other along the irregular rotating body. The first concave surface forms a first groove, and the second concave surface forms a second groove. The abutment is provided on one side of the irregular rotating body. When the knob is rotated relative to the base to a preset position, the end of the abutment is engaged in the first groove or the second groove. Alternatively, the abutment is provided on each of the opposite sides of the irregular rotating body. When the knob is rotated relative to the base to a preset position, the end of one of the abutments is engaged in the first groove, and the end of the other abutment is engaged in the second groove.

10. The knob device as claimed in claim 1, characterized in that, The knob is fixedly connected to the trigger, and the abutment is elastically and retractably mounted on the base. When the knob rotates relative to the base, it drives the trigger to rotate relative to the abutment.

11. The knob device as claimed in claim 10, characterized in that, The trigger also includes a boss on the side of the irregular rotating body near the knob. The two sides of the boss are respectively provided with a first positioning rib and a second positioning rib of different specifications. The knob has a first positioning groove adapted to the first positioning rib and a second positioning groove adapted to the second positioning rib. The first positioning rib is inserted into the first positioning groove and the second positioning rib is inserted into the second positioning groove. And / or, the trigger further includes a boss located on the side of the irregular rotating body near the knob, the knob having at least two connecting portions extending toward the irregular rotating body, the at least two connecting portions surrounding and forming a receiving space for receiving the boss, and the irregular rotating body having an assembly portion that is connected one-to-one with the connecting portions.

12. The knob device as claimed in claim 10, characterized in that, The base includes a base body and a mounting part. The mounting part is located on the side of the base body facing the trigger. The trigger has a slot for the mounting part to be inserted into, and the trigger is rotatably sleeved around the mounting part.

13. The knob device as claimed in claim 10, characterized in that, The abutting component includes a push rod and an elastic element. The push rod is axially movable and mounted on the base. One end of the push rod abuts against the irregular rotating body. The elastic element elastically abuts between the push rod and the base and can elastically deform along the axial direction of the push rod.

14. The knob device as claimed in claim 13, characterized in that, The base includes a first limiting part and a second limiting part that are opposite to each other and spaced apart. The top rod includes a first rod segment, a shoulder segment and a second rod segment connected sequentially along the axial direction. The free end of the first rod segment abuts against the irregular rotating body. The first limiting part supports the first rod segment, the second limiting part supports the second rod segment, and the shoulder segment is located between the first limiting part and the second limiting part.

15. The knob device as claimed in claim 14, characterized in that, The knob device further includes a fixing member, which and the base surround to form a receiving cavity for accommodating the top rod portion. The receiving cavity has through holes for the first rod segment and the second rod segment to pass through respectively. The shoulder segment and the elastic member are disposed in the receiving cavity.

16. The knob device as claimed in claim 1, characterized in that, The knob device also includes a panel with a through hole. The base is fixed to one side of the panel. One end of the knob near the base passes through the through hole and rotates with the base. The other end of the knob protrudes from the side of the panel away from the base. One end of the knob near the base has a fastener that engages with the side of the panel facing the base. The side of the panel facing the base has a stop that engages with the fastener to limit the circumferential rotation of the knob.

17. The knob device as claimed in claim 16, characterized in that, The outer peripheral surface of the irregular rotating body forms the irregular curved surface, which has a concave surface. The concave surface forms a groove for the end of the abutment to be engaged. The buckle body is provided corresponding to the concave surface, and the projection of the buckle body and the concave surface on the radial direction of the knob at least partially overlaps.

18. The knob device as claimed in any one of claims 1 to 17, characterized in that, The knob device also includes a permanent magnet disposed on the knob and a magnetic induction module disposed on the base. The permanent magnet can generate a non-uniform magnetic field as the knob rotates, and the magnetic induction module is used to sense changes in the magnetic field and output corresponding electrical signals.

19. The knob device as claimed in claim 18, characterized in that, The knob is provided with a mounting cavity, the mounting cavity having a mounting port for inserting the permanent magnet, the permanent magnet being fixed inside the mounting cavity, and the knob device further includes an end cap covering the mounting port; And / or, the base is provided with a mounting groove, the mounting groove having a mounting opening for the magnetic induction module to be installed, the magnetic induction module being at least partially housed in the mounting groove, and the base having a limiting buckle for limiting the magnetic induction module on the side near the mounting opening.

20. An electrical appliance, characterized in that, Includes the knob device as described in any one of claims 1 to 19.

21. The electrical equipment as described in claim 20, characterized in that, The electrical equipment has a water system, which is equipped with a flow regulating valve. The knob is used to control the flow regulating valve to regulate the flow of the water system.

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