Knob structure and electronic device

Abstract

The utility model discloses a knob structure and electronic equipment, will the knob rotatablely be provided in the seat portion, and will multiple limit portions and mounting post elastic connection, make multiple limit piece can produce the elastic displacement amount of far from mounting post. Thus, when the knob rotates to the specific angle, multiple limit pieces can extend into the corresponding clamping slot and be clamped. When the operator no longer drives the knob, the knob will not easily rotate. At the same time, the operator can judge the clamping position of the limit piece and the clamping slot through the hand feeling, which is beneficial to the operator to feel the gear change in the rotation process in real time.

Description

Technical Field

[0001] This utility model relates to the field of control technology, and in particular to a knob structure and electronic device. Background Technology

[0002] In electronic devices such as washing machines, fans, and stereos, knobs are used for multi-level adjustments, allowing operators to make quick and accurate changes. However, this also places higher demands on the adjustment precision of the knobs, making it a problem that needs to be solved. Utility Model Content

[0003] In view of this, the present invention provides a knob structure and electronic device, which utilizes the cooperation of multiple limiting members and multiple slots to limit the rotation position of the knob, thereby improving the control of the knob rotation accuracy.

[0004] According to a first aspect of the present invention, a knob structure is provided, the knob structure comprising:

[0005] Control Department;

[0006] The base includes the mounting column;

[0007] The limiting part includes a plurality of limiting members, which are elastically connected to the mounting post, and the plurality of limiting members generate an elastic displacement away from the mounting post; and

[0008] A knob is rotatably disposed on the mounting base. The inner wall of the knob has a plurality of slots evenly distributed facing the mounting post. When the knob is rotated by a predetermined angle, the plurality of limiting members respectively engage with at least a portion of the plurality of slots, and the control unit generates a control signal.

[0009] Furthermore, the sliding surface also includes multiple transition surfaces that extend circumferentially along the mounting post, and the transition surfaces and the slots are alternately arranged circumferentially along the mounting post.

[0010] The limiting member slides from the slot to the transition surface, and the limiting member moves toward the central area of ​​the mounting column.

[0011] Furthermore, the limiting component includes a latch and a slider;

[0012] The mounting post has multiple slides corresponding to the multiple limiting members. The multiple slides extend radially along the mounting post. The slider is slidably disposed in the corresponding slide. The latch extends toward the sliding surface and abuts.

[0013] Furthermore, the slot has two first guide slopes and a first abutting surface. The two first guide slopes are located on both sides of the first abutting surface, and one side of the first guide slope is connected to the first abutting surface, while the other side is inclined away from the sliding surface and abuts against the transition surface.

[0014] The latch includes two second guide slopes and a second abutment surface. The latch engages with the slot, and the second abutment surface abuts against the first abutment surface. When the knob is rotated, the first guide slope and the second guide slope slide relative to each other, and drive the latch to move toward the center of the mounting post.

[0015] Furthermore, the slide rail includes two parallel sliding grooves, the arrangement direction of the two sliding grooves is perpendicular to the axial direction of the mounting column, the sliding groove has two first contact surfaces and a second contact surface, the second contact surface is located between the two first contact surfaces, and the two second contact surfaces are arranged opposite to each other;

[0016] The number of sliders is two, and they are respectively inserted into the two grooves, and each slider abuts against the two first contact surfaces and the second contact surfaces.

[0017] Furthermore, the slide rail also includes a first receiving groove and a first end face, the first receiving groove being located between the two slide rails, and the first end face facing the sliding surface;

[0018] The limiting member also includes a connecting body, with two sliders protruding from one side of the connecting body and the latch protruding from the other side of the connecting body;

[0019] The limiting part also includes a plurality of first elastic bodies corresponding to a plurality of first receiving grooves. The first elastic body is disposed in the corresponding first receiving groove, with one end abutting against the first end face and the other end abutting against the connecting body. The first elastic body generates elastic compression.

[0020] Furthermore, the knob has a central hole;

[0021] The knob structure also includes:

[0022] A button, disposed in the central hole and including a central post, and the button being operably movable relative to the knob along the axial direction of the central hole, the knob being operably rotatable relative to the button through the central hole; and

[0023] A second elastic body is sleeved on the central post, with one end abutting against the button and the other end abutting against the seat. The second elastic body generates an elastic force that drives the button away from the seat.

[0024] Furthermore, the control unit is disposed on the base and includes a first control unit and a second control unit, wherein the second control unit includes contacts;

[0025] The button includes a pressure head that protrudes from the central post and faces the contact point;

[0026] When the knob is rotated to a predetermined angle, the first control unit generates a first control signal, the pressure head presses against the contact point, and the second control unit generates a second control signal.

[0027] Furthermore, the seat portion includes:

[0028] Chassis; and

[0029] The mounting plate is fixedly connected to the chassis and has a first stepped hole that penetrates the mounting plate, and the mounting plate forms the mounting post.

[0030] The control unit also includes a circuit board disposed on the chassis. The first control unit and the second control unit are disposed on the side of the circuit board near the mounting plate. The second control unit is located in the small diameter section of the first stepped hole, and one end of the second elastic body abuts against the platform of the first stepped hole.

[0031] Furthermore, the knob has a first mounting surface facing the chassis and surrounding the mounting plate;

[0032] The first control unit includes:

[0033] The photoelectric encoder disk is bonded to the first mounting surface on one side and spaced apart from the chassis on the other side.

[0034] A photoelectric sensor is disposed on the circuit board and includes a sensing head, the sensing head being oriented toward the photoelectric encoder.

[0035] Furthermore, the mounting plate has a plurality of first positioning holes;

[0036] The button also includes:

[0037] Pressing body;

[0038] Multiple first anti-rotation pins are correspondingly arranged with multiple first positioning holes, and the pressing body extends into the corresponding first positioning hole respectively; and

[0039] An annular flange is located in the central hole, and the annular flange and the opposite side of the central hole form a first sealing groove;

[0040] The knob structure also includes a first sealing ring, which is disposed in the first sealing groove.

[0041] Furthermore, the knob has a second mounting surface located at one end of the knob;

[0042] The knob structure also includes:

[0043] A retaining ring is fixedly connected to the second mounting surface, and the knob rotates synchronously with the retaining ring. The inner edge of the retaining ring abuts against and slides relative to the edge of the chassis on the side opposite to the mounting plate.

[0044] Furthermore, the central hole is a second-step hole, and the annular flange is located in the large-diameter section of the second-step hole;

[0045] The elastic force at one end of the second elastic body acts on the platform of the second stepped hole through the annular flange, and the elastic force at the other end acts on the retaining ring through the chassis.

[0046] Furthermore, the knob has a second receiving groove located at one end of the knob away from the central hole, and the second mounting surface is located at the top of the second receiving groove;

[0047] The chassis is disposed in the second receiving groove, and a second sealing groove is formed between the side of the chassis and the side of the second receiving groove;

[0048] The knob structure also includes a second sealing ring, which is disposed in the second sealing groove.

[0049] Secondly, this utility model embodiment also provides an electronic device, the electronic device comprising:

[0050] According to the knob structure described in the first aspect above.

[0051] The knob structure and electronic device of this utility model embodiment rotatably mount the knob on the base and elastically connect multiple limiting parts to the mounting post, allowing the multiple limiting parts to generate an elastic displacement away from the mounting post. Thus, the multiple limiting parts move radially along the mounting post and abut against and slide relative to the sliding surface, allowing the multiple limiting parts to generate displacement according to the concavity and convexity of the sliding surface. When the operator rotates the knob, this increases rotational damping and prevents the knob from being jammed by the limiting parts. Furthermore, when the knob is rotated to a specific angle, the multiple limiting parts can extend into the corresponding slots and engage. When the operator no longer drives the knob, the knob will not easily rotate. Simultaneously, the operator can judge the engagement position of the limiting parts and the slots by feel, which helps the operator to perceive the gear changes during rotation in real time. Attached Figure Description

[0052] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0053] Figure 1 This is a schematic diagram of one side of the knob structure according to an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram of the other side of the knob structure in an embodiment of this utility model;

[0055] Figure 3 This is an exploded view of one side of the knob structure according to an embodiment of the present invention;

[0056] Figure 4 This is an exploded view of the other side of the knob structure in an embodiment of this utility model;

[0057] Figure 5 This is an exploded view of the button, mounting plate, and chassis according to an embodiment of the present utility model;

[0058] Figure 6 This is an exploded view of the knob and retaining ring according to an embodiment of the present invention;

[0059] Figure 7 This is a schematic diagram of the installation plate and knob according to an embodiment of the present invention;

[0060] Figure 8 yes Figure 1 Schematic diagram of cross-section at CC;

[0061] Figure 9 yes Figure 3 A magnified view of a portion of region A in the middle;

[0062] Figure 10 yes Figure 4 A magnified view of a portion of region B in the middle;

[0063] Figure 11 yes Figure 8 A magnified view of a portion of region D in the middle.

[0064] Explanation of reference numerals in the attached figures:

[0065] 1- Knob;

[0066] 11-Sliding surface; 111-Slot; 1111-First guide slope; 1112-First abutment surface; 112-Transition surface;

[0067] 12-Center Hole;

[0068] 13-First mounting surface;

[0069] 14 - Second mounting surface;

[0070] 15-Second receiving slot;

[0071] 16-Positioning groove;

[0072] 2-Button;

[0073] 21-Indenter;

[0074] 22-Second elastomer;

[0075] 23-Pressing body;

[0076] 24 - First anti-rotation column;

[0077] 25 - Annular flange;

[0078] 3-Limiting part;

[0079] 31-Limiting element; 311-Latch tongue; 3111-Second guide slope; 3112-Second abutment surface;

[0080] 312 - Slider;

[0081] 313 - Connector;

[0082] 32 - First elastic body;

[0083] 4-Seal;

[0084] 41-Mounting post; 411-Slide rail; 4111-Slide groove; 4112-First receiving groove; 4113-First contact surface; 4114-Second contact surface; 4115-First end face;

[0085] 42-Mounting plate; 421-First step hole; 422-First positioning hole; 423-Second positioning hole; 424-Third positioning hole; 425-First clearance groove;

[0086] 43-Chassis; 431-Second anti-rotation pillar; 432-Second clearance groove;

[0087] 44-Window;

[0088] 5-Control Unit;

[0089] 51-First control unit; 511-Photoelectric encoder; 512-Photoelectric sensor; 5121-Sensing head; 5122-Light source; 513-Double-sided adhesive;

[0090] 52-Second control unit; 521-Contact;

[0091] 53 - Circuit Board;

[0092] 61-First sealing groove; 62-First sealing ring; 63-Second sealing groove; 64-Second sealing ring;

[0093] 7-Retaining ring; 71-Snap-fit ​​component;

[0094] 8-Connector. Detailed Implementation

[0095] The present invention will now be described based on embodiments, but it is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are described in detail. Those skilled in the art will fully understand the present invention even without these details. To avoid obscuring the essence of the present invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0096] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0097] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0098] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0099] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0100] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0101] Figure 1 and Figure 2 This is a schematic diagram of the knob structure in this embodiment.

[0102] In some implementations, such as Figures 1-2 As shown, the knob structure in this embodiment includes a knob 1, a button 2, a base 4, a control unit 5, and a retaining ring 7. The knob 1 can rotate under the operator's control, and the button 2 can be pressed down under the operator's control. The control unit 5 is used for electrical connection with electronic equipment, enabling the knob 1 and button 2 to control the electronic equipment respectively.

[0103] Optionally, the electronic device can be a home appliance, a 3C product, or a car's center console. Taking home appliances as an example, the electronic device could be a microwave oven, oven, rice cooker, or washing machine. The knob structure can be used to adjust parameters such as volume, screen brightness, screen size, focus, or temperature of the electronic device.

[0104] Figure 3 and Figure 4 This is an exploded view of the knob structure in this embodiment. Figure 5 This is an exploded view of button 2, mounting plate 42 and chassis 43 in this embodiment. Figure 6 This is an exploded view of the knob 1 and the retaining ring 7 in this embodiment. Figure 7 This is a schematic diagram of the installation disk 42 and the knob 1 in this embodiment. Figure 8 yes Figure 1 Schematic diagram of cross-section at point AA.

[0105] In some implementations, such as Figure 3-6As shown, the knob structure also includes a limiting part 3. The knob 1 is fixedly connected to the retaining ring 7 to form a receiving cavity. The limiting part 3, the seat 4, and the button 2 are disposed in the receiving cavity, and the knob 1 and the retaining ring 7 are rotatably connected to the seat 4, while the button 2 is slidably connected to the knob 1. The seat 4 includes a mounting post 41, and the limiting part 3 is disposed on the mounting post 41. The mounting post 41 is located in the central region of the receiving cavity. Further referencing... Figure 7 and Figure 8 As shown, the limiting part 3 includes a plurality of limiting members 31, which are elastically connected to the mounting post 41, and in the radial direction of the mounting post 41, the plurality of limiting members 31 generate an elastic displacement away from the mounting post 41.

[0106] Further reference Figure 4 and Figure 8 As shown, the knob 1 has a sliding surface 11 located on the side wall of the receiving cavity. The sliding surface 11 surrounds and faces the mounting post 41. When the knob 1 is rotated, multiple limiting members 31 can slide on the sliding surface 11. In the circumferential direction of the mounting post 41, a portion of the sliding surface 11 is recessed away from the mounting post 41 to form multiple slots 111. The multiple slots 111 face the mounting post 41. When the knob 1 is rotated to a predetermined angle, the multiple limiting members 31 respectively engage with at least a portion of the multiple slots 111. Thus, by utilizing the engagement of the multiple limiting members 31 with the multiple slots 111, the knob 1 is positioned when rotated to a specific angle, preventing the knob 1 from rotating easily. At the same time, the limiting members 31 can slide on the sliding surface 11, allowing the operator to feel damping when rotating, improving the user experience.

[0107] In summary, the knob structure in this embodiment rotatably mounts the knob 1 to the base 4 and elastically connects multiple limiting parts 3 to the mounting post 41, allowing the multiple limiting parts 31 to generate an elastic displacement away from the mounting post 41. Consequently, the multiple limiting parts 31 move radially along the mounting post 41 and abut against and slide relative to the sliding surface 11, enabling the multiple limiting parts 31 to generate displacement according to the unevenness of the sliding surface 11. When the operator rotates the knob 1, this increases rotational damping and prevents the knob 1 from being jammed by the limiting parts 31. Furthermore, when the knob 1 is rotated to a specific angle, the multiple limiting parts 31 can extend into the corresponding slots 111 and engage. When the operator no longer drives the knob 1, the knob 1 will not easily rotate. Simultaneously, the operator can determine the engagement position of the limiting parts 31 and the slots 111 by touch, which helps the operator to feel the gear changes during rotation in real time.

[0108] In some implementations, such as Figure 4As shown, the sliding surface 11 also includes multiple transition surfaces 112. The transition surfaces 112 extend circumferentially along the mounting post 41, and the transition surfaces 112 and the slots 111 are alternately arranged in the circumferential direction of the mounting post 41. During the process of the limiting member 31 sliding from the slot 111 to the transition surface 112, the limiting member 31 moves towards the central region of the mounting post 41.

[0109] Specifically, in this embodiment, there are three limiting members 31, and twelve slots 111 and twelve transition surfaces 112. The three limiting members 31 are evenly distributed along the circumference of the mounting post 41, and the twelve slots 111 are evenly distributed. This allows operators to better determine the correspondence between the rotation angle and different gear positions when adjusting the electronic device.

[0110] Figure 9 yes Figure 3 A magnified view of a portion of region A in the middle.

[0111] In some implementations, such as Figure 9 As shown, the limiting member 31 includes a latch 311 and a slider 312. The mounting post 41 has multiple slides 411 corresponding to the multiple limiting members 31. The multiple slides 411 extend radially along the mounting post 41. The slider 312 is slidably disposed in the corresponding slide 411. The latch 311 extends towards and abuts against the sliding surface 11. In this embodiment, the slides 411 can provide a guiding function for the limiting members 31, allowing the limiting members 31 to move radially along the mounting post 41 (e.g., ...). Figure 5 As shown by the dashed line I in the diagram, this ensures that multiple latches 311 and the sliding surface 11 are in contact with each other in real time.

[0112] Figure 10 yes Figure 4 A magnified view of a portion of region B in the middle.

[0113] In some implementations, such as Figures 9-10 As shown, the slot 111 has two first guide ramps 1111 and a first abutment surface 1112. The two first guide ramps 1111 are located on both sides of the first abutment surface 1112, and one side of the first guide ramp 1111 is connected to the first abutment surface 1112, while the other side is inclined away from the sliding surface 11 and abuts against the transition surface 112. The latch 311 includes two second guide ramps 3111 and a second abutment surface 3112.

[0114] When the latch 311 engages with the slot 111, the second abutment surface 3112 abuts against the first abutment surface 1112. The limiting member 31 prevents the knob 1 from turning easily. When the knob 1 turns in the first direction, the first guide slope 1111 and the second guide slope 3111 on one side of the limiting member 31 slide relative to each other, causing the latch 311 to move towards the center of the mounting post 41, so that the second abutment surface 3112 abuts against the transition surface 112. When the knob 1 turns in the second direction, the first guide slope 1111 and the second guide slope 3111 on the other side of the limiting member 31 slide relative to each other, causing the latch 311 to move towards the center of the mounting post 41, so that the second abutment surface 3112 abuts against the transition surface 112. This reduces the friction between the latch 311 and the slot 111.

[0115] In some implementations, such as Figure 3 , Figure 7 and Figure 9 As shown, the slide rail 411 includes two parallel sliding grooves 4111, the arrangement direction of which is perpendicular to the axial direction of the mounting post 41. Each sliding groove 4111 has two first contact surfaces 4113 and a second contact surface 4114, the second contact surface 4114 being located between the two first contact surfaces 4113 and arranged opposite to each other. Two sliders 312 are respectively inserted into the two sliding grooves 4111, and each slider 312 abuts against the two first contact surfaces 4113 and the second contact surface 4114.

[0116] In this embodiment, each limiting member 31 abuts against four first contact surfaces 4113, thereby effectively preventing the latch 311 from wobbling axially on the mounting post 41 (e.g., Figure 9 (As shown by arrow a1 in the diagram). Each limiting member 31 abuts against two second contact surfaces 4114, thereby effectively preventing the latch 311 from rotating axially along the mounting post 41 when it rubs against the sliding surface 11 (as shown by arrow a1 in the diagram). Figure 9 (As shown by arrow a2 in the diagram). This ensures that the limiting member 31 always moves radially along the mounting post 41. When the operator rotates the knob 1, the limiting member 31 collides with the slot 111, allowing the operator to feel a clear impact, thus improving the user experience.

[0117] In some implementations, such as Figure 7 As shown, the slide 411 also includes a first receiving groove 4112 and a first end face 4115. The first receiving groove 4112 is located between the two slides 4111, and the first end face 4115 faces the sliding surface 11.

[0118] Further reference Figure 9As shown, the limiting member 31 also includes a connecting body 313, with two sliders 312 protruding from one side of the connecting body 313 and a latch 311 protruding from the other side of the connecting body 313. The limiting part 3 also includes a plurality of first elastic bodies 32 corresponding to a plurality of first receiving grooves 4112. The first elastic bodies 32 are disposed in the corresponding first receiving grooves 4112, with one end abutting against the first end face 4115 and the other end abutting against the connecting body 313, and the first elastic bodies 32 generate elastic compression.

[0119] Specifically, the first receiving groove 4112 is connected to two sliding grooves 4111 on both sides. The first elastic body 32 is a compression spring, which drives multiple limiting members 31 away from the mounting post 41. The first receiving groove 4112 has two first arc surfaces. The opposite sides of the two sliders 312 each have a second arc surface. The two first arc surfaces and the two second arc surfaces together form a limiting channel. The limiting channel contacts the side of the compression spring, preventing the compression spring from moving freely within the sliding groove 411 when the compression spring is compressed.

[0120] In some implementations, such as Figure 6 As shown, knob 1 has a central hole 12. Further referencing... Figures 3-4 As shown, the knob structure also includes a button 2 and a second elastic body 22. The button 2 is disposed in the central hole 12, and the button 2 is operably movable relative to the knob 1 along the axial direction of the central hole 12. The knob 1 is operably rotated relative to the button 2 through the central hole 12. One end of the second elastic body 22 abuts against the button 2, and the other end abuts against the seat 4. The second elastic body 22 generates an elastic force that drives the button 2 away from the seat 4.

[0121] In this embodiment, the second elastic body 22 can be a compression spring, which can drive the button 2 to reset promptly. A central post passes through the compression spring and is used to position it. Simultaneously, both the knob 1 and the button 2 can move independently under the operator's control without affecting each other. For example, the operator can press the button 2 with their thumb and then flick it with their index or middle finger. This allows for simultaneous or separate driving of the knob 1 and the button 2.

[0122] In some implementations, such as Figure 3 and Figure 8As shown, the knob structure also includes a control unit 5. The control unit 5 is disposed on the base 4 and includes a first control unit 51 and a second control unit 52, the second control unit 52 including a contact 521. The button 2 includes a pressing head 21 facing the contact 521. When the knob 1 is rotated by a predetermined angle, the first control unit 51 generates a first control signal to control the electronic device. When the pressing head 21 presses against the contact 521, the second control unit 52 generates a second control signal to control the electronic device. For example, the first control signal is configured to control volume, brightness, or the washing mode of a washing machine. The second control signal is configured to control the power on / off, or to switch the usage mode of the electronic device by multiple presses.

[0123] In some implementations, such as Figure 3 , Figure 5 and Figure 8 As shown, the base 4 includes a mounting plate 42 and a base 43. The mounting plate 42 is fixedly connected to the base 43. The mounting plate 42 has a first stepped hole 421 that penetrates the mounting plate 42, forming a mounting post 41. The control unit 5 also includes a circuit board 53, which is disposed on the base 43. A first control unit 51 and a second control unit 52 are disposed on the side of the circuit board 53 near the mounting plate 42. The second control unit 52 is located in the small-diameter section of the first stepped hole 421. Further referencing... Figure 8 As shown, one end of the second elastic body 22 abuts against the platform of the first stepped hole 421.

[0124] In this embodiment, the circuit board 53 is located between the mounting plate 42 and the chassis 43. The second elastic body 22 is supported by the first stepped hole 421, which prevents the second elastic body 22 from contacting the control unit 5, thereby facilitating the installation and protection of the control unit 5.

[0125] Preferably, such as Figure 3 , Figure 5 and Figure 8 As shown, the knob structure also includes multiple connectors 8, which can be screws. The base 43 near the mounting plate 42 also has multiple second anti-rotation posts 431 protruding from its side, and the base 43 has multiple through holes. The mounting plate 42 has multiple second positioning holes 423 and multiple third positioning holes 424. The third positioning holes 424 can be threaded holes. Multiple screws pass through the through holes and are threaded into the third positioning holes 424, thus fixing the mounting plate 42 to the base 43. For example, the circuit board 53 is first installed on the base 43, and then the mounting plate 42 is fixed to the top of the base 43. Simultaneously, the multiple second anti-rotation posts 431 are respectively inserted into the multiple second positioning holes 423 to ensure the installation accuracy between the mounting plate 42 and the base 43.

[0126] Figure 11 yes Figure 8 A magnified view of a portion of region D in the middle.

[0127] In some implementations, such as Figure 6 As shown, the knob 1 has a first mounting surface 13, which faces the chassis 43 and surrounds the mounting plate 42. Further referencing... Figures 3-4 As shown, the first control unit 51 includes an optical encoder 511 and an optical sensor 512. One side of the optical encoder 511 is bonded to the first mounting surface 13, and the other side is spaced apart from the chassis 43 and the optical sensor 512 (e.g., Figure 8 (As shown in distances L1 and L2). The photoelectric sensor 512 is disposed on the circuit board 53 and includes a sensing head 5121, which faces the photoelectric code disk 511 and is used to identify the code of the photoelectric code disk 511. This avoids mutual friction between the photoelectric code disk 511 and the base 4.

[0128] Optionally, the photoelectric code disk 511 is bonded to the first mounting surface 13 using double-sided adhesive 513. The first control unit 51 is configured as a reflective photoelectric encoder, and the first control unit 51 also includes a light source 5122 (e.g., Figure 11 (As shown). The side of the photoelectric code disk 511 facing away from the first mounting surface 13 has a reflective metal coating, which forms an encoding pattern. A light source 5122 illuminates it to collect the reflected light through a photoelectric sensor 512, which is configured to analyze the rotation angle of the knob 1.

[0129] Optionally, such as Figure 3 , Figure 4 , Figure 8 and Figure 11 As shown, the mounting plate 42 has a first clearance groove 425 facing the chassis 43. The chassis 43 has a second clearance groove 432 facing the mounting plate 42. When the mounting plate 42 is fixed to the chassis 43, the first clearance groove 425 and the second clearance groove 432 engage to form a first light chamber. This first light chamber is used to house the first control unit 51, the second control unit 52, and part of the circuit board 53. The top of the first light chamber has a window 44, and part of the photoelectric encoder 511 corresponds to this window 44. When the photoelectric encoder 511 rotates, each area of ​​the photoelectric encoder 511 passes through the window 44 in sequence. Thus, the illumination intensity of the light source 5122 on the photoelectric encoder 511 is increased through the first light chamber, making the image acquired by the photoelectric sensor 512 clearer.

[0130] The circuit board 53 can be configured as a flexible circuit board 53. The circuit board 53 is fixed to the bottom of the second clearance groove 432, and the bottom of the second clearance groove 432 is also provided with a channel for the end of the circuit board 53 to pass through. This ensures that there is sufficient distance between the photoelectric sensor 512 and the light source 5122 and the photoelectric code disk 511 (e.g., ...). Figure 11(as shown by distance L2 in the figure) to achieve image acquisition.

[0131] Furthermore, the number of slots 111 is twelve, evenly distributed. The first control signal generated by the first control unit 51 includes first gear information to twelfth gear information, with each of the twelve gear information types corresponding to one of the twelve slots 111. The first control unit 51 is configured to not generate gear information in response to a rotation angle of less than 30 degrees on the photoelectric encoder 511 acquired by the first control unit 51. When the rotation angle is 30 degrees, the sequence of the gear information is incremented by one. Conversely, when the rotation angle is -60 degrees, the sequence of the gear information is decremented by two.

[0132] In some implementations, such as Figure 5 and Figure 7 As shown, the mounting plate 42 has a plurality of first positioning holes 422. Further referencing... Figure 4 As shown, button 2 also includes a pressing body 23, a plurality of first anti-rotation posts 24, and an annular flange 25. The plurality of first anti-rotation posts 24 are correspondingly arranged with a plurality of first positioning holes 422, and the pressing body 23 extends into the corresponding first positioning holes 422. The annular flange 25 is located in the central hole 12, and a first sealing groove 61 is formed on the opposite side of the annular flange 25 and the central hole 12. Further referencing... Figure 8 As shown, the knob structure also includes a first sealing ring 62, which is disposed in the first sealing groove 61.

[0133] Specifically, when button 2 moves up and down, the first anti-rotation post 24 moves linearly within the first positioning hole 422. The first sealing groove 61 is located on the annular flange 25. The inner and outer sides of the first sealing groove 61 abut against the annular flange 25 and the central hole 12, respectively, thereby sealing the gap between the knob 1 and button 2 to prevent liquid or dust from entering. However, the first sealing ring 62 also creates friction between the knob 1 and button 2. When the knob 1 rotates, the rotational torque is transmitted to button 2 through the first sealing ring 62. Therefore, in this embodiment, the first anti-rotation post 24 and the first positioning hole 422 cooperate to prevent the knob 1 from driving the button 2 to rotate.

[0134] In some implementations, such as Figure 6 As shown, the knob 1 has a second mounting surface 14, which is located at one end of the knob 1. The knob structure also includes a retaining ring 7. The retaining ring 7 is fixedly connected to the second mounting surface 14, and the knob 1 rotates synchronously with the retaining ring 7. Further referencing... Figure 8 As shown, the inner edge of the retaining ring 7 abuts against and slides relative to the edge of the chassis 43 on the side opposite to the mounting plate 42.

[0135] Specifically, such as Figure 6As shown, the second mounting surface 14 is provided with multiple positioning grooves 16. The retaining ring 7 is fixedly connected to the positioning grooves 16 via a snap-fit ​​member 71. Adhesive can also be provided on the retaining ring 7, the snap-fit ​​member 71, and the second mounting surface 14 to increase the fixing strength. The engagement of the snap-fit ​​member 71 with the positioning grooves 16 ensures that the knob 1 and the retaining ring 7 rotate synchronously. Thus, the knob 1 and the seat 4 are positioned axially on the mounting post 41.

[0136] In some implementations, such as Figure 3 , Figure 4 and Figure 8 As shown, the knob 1 has a second receiving groove 15, located at the end of the knob 1 away from the central hole 12, and a second mounting surface 14 is located at the top of the second receiving groove 15. A base 43 is disposed in the second receiving groove 15, and a second sealing groove 63 is formed between the side of the base 43 and the side of the second receiving groove 15. The knob structure also includes a second sealing ring 64, which is disposed in the second sealing groove 63. The second sealing groove 63 can be disposed in the base 43.

[0137] Specifically, in this embodiment, the second sealing ring 64 increases the sealing between the knob 1 and the base 4. Furthermore, the second sealing ring 64 also creates friction between the knob 1 and the base 43. Therefore, in this embodiment, the second anti-rotation post 431 and the second positioning hole 423, as well as the first anti-rotation post 24 and the first positioning hole 422, ensure that the button 2, the mounting plate 42, and the base 43 will not rotate when the knob 1 is rotated.

[0138] In some implementations, such as Figure 6 and Figure 8 As shown, the central hole 12 is the second stepped hole, and the annular flange 25 is located in the large-diameter section of the second stepped hole. The elastic force at one end of the second elastic body 22 acts on the platform of the second stepped hole through the annular flange 25, and the elastic force at the other end acts on the retaining ring 7 through the base plate 43.

[0139] Thus, the elastic force of the second elastic body 22 restricts the button 2 and the seat 4 between the knob 1 and the retaining ring 7. When the button 2 is pressed down, although the button 2 separates from the platform of the second stepped hole, the lower edge of the seat 4 remains in contact with the retaining ring 7. This ensures the clearance between the photoelectric encoder 511 and the seat 4. Figure 11 (as shown by distance L1 in the diagram).

[0140] In an alternative implementation, the button 2, the second elastic body 22, the seat 4, and the retaining ring 7 in this embodiment can be assembled in the following manner: Figure 8In the direction indicated by the middle arrow a3, button 2, second elastic body 22, and seat 4 are sequentially installed into knob 1, and finally the retaining ring 7 is placed on knob 1. This allows the elastic force of the second elastic body 22 to separate the photoelectric encoder 511 from the chassis 43, and the photoelectric encoder 511 is always positioned above and adjacent to window 44.

[0141] Furthermore, such as Figure 7 and Figure 9 As shown, along the axial direction of the mounting post 41, the latch 311 and the slider 312 are located at both ends of the connecting body 313. During the process of inserting the knob 1 into the mounting plate 42, the operator can drive the limiting member 31 to move towards the center of the mounting post 41 through the gap between the connecting body 313 and the latch 311, so as to compress the first elastic body 32, allowing multiple latches 311 to enter into the central hole 12 and abut against the sliding surface 11.

[0142] In an alternative implementation, the knob structure in the above embodiments can be applied to electronic devices.

[0143] In summary, in this embodiment, the electronic device rotatably mounts the knob 1 to the base 4 and elastically connects multiple limiting parts 3 to the mounting post 41, allowing the multiple limiting parts 31 to generate an elastic displacement away from the mounting post 41. Consequently, the multiple limiting parts 31 move radially along the mounting post 41 and abut against and slide relative to the sliding surface 11, allowing them to displace according to the unevenness of the sliding surface 11. When the operator rotates the knob 1, this increases rotational damping and prevents the knob 1 from being jammed by the limiting parts 31. Furthermore, when the knob 1 is rotated to a specific angle, the multiple limiting parts 31 can extend into the corresponding slots 111 and engage. When the operator no longer drives the knob 1, it prevents the knob 1 from rotating easily. Simultaneously, the operator can determine the engagement position of the limiting parts 31 with the slots 111 by touch, allowing the operator to feel the gear changes during rotation in real time.

[0144] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A knob structure, characterized in that, The knob structure includes: Control Department; The base includes the mounting column; The limiting part includes a plurality of limiting members, which are elastically connected to the mounting post, and the plurality of limiting members generate an elastic displacement away from the mounting post; and A knob is rotatably disposed on the base. The inner wall of the knob has a plurality of slots evenly distributed facing the mounting post. When the knob is rotated by a predetermined angle, the plurality of limiting members respectively engage with at least a portion of the plurality of slots, and the control unit generates a control signal.

2. The knob structure according to claim 1, characterized in that, The knob has a sliding surface, a portion of which is recessed in a direction away from the mounting post to form multiple slots. The sliding surface also includes multiple transition surfaces that extend circumferentially along the mounting post. In the circumferential direction of the mounting post, the transition surfaces and the slots are alternately arranged. The plurality of limiting members slide on the sliding surface, and the limiting members slide from the slot to the transition surface, and the limiting members move toward the central region of the mounting post.

3. The knob structure according to claim 2, characterized in that, The limiting component includes a latch and a slider; The mounting post has multiple slides corresponding to the multiple limiting members. The multiple slides extend radially along the mounting post. The slider is slidably disposed in the corresponding slide. The latch extends toward the sliding surface and abuts.

4. The knob structure according to claim 3, characterized in that, The slot has two first guide slopes and a first abutting surface. The two first guide slopes are located on both sides of the first abutting surface, and one side of the first guide slope is connected to the first abutting surface, while the other side is inclined away from the sliding surface and abuts against the transition surface. The latch includes two second guide slopes and a second abutment surface. The latch engages with the slot, and the second abutment surface abuts against the first abutment surface. When the knob is rotated, the first guide slope and the second guide slope slide relative to each other, and drive the latch to move toward the center of the mounting post.

5. The knob structure according to claim 3, characterized in that, The slide rail includes two parallel sliding grooves, the arrangement direction of the two sliding grooves is perpendicular to the axis of the mounting column, and the sliding groove has two first contact surfaces and a second contact surface, the second contact surface is located between the two first contact surfaces, and the two second contact surfaces are arranged opposite to each other. The number of sliders is two, and they are respectively inserted into the two grooves, and each slider abuts against the two first contact surfaces and the second contact surfaces.

6. The knob structure according to claim 5, characterized in that, The slide rail further includes a first receiving groove and a first end face, the first receiving groove being located between the two slide rails, and the first end face facing the sliding surface; The limiting member also includes a connecting body, with two sliders protruding from one side of the connecting body and the latch protruding from the other side of the connecting body; The limiting part also includes a plurality of first elastic bodies corresponding to a plurality of first receiving grooves. The first elastic body is disposed in the corresponding first receiving groove, with one end abutting against the first end face and the other end abutting against the connecting body. The first elastic body generates elastic compression.

7. The knob structure according to claim 1, characterized in that, The knob has a central hole; The knob structure also includes: A button, disposed in the central hole and including a central post, and the button being operably movable relative to the knob along the axial direction of the central hole, the knob being operably rotatable relative to the button through the central hole; and A second elastic body is sleeved on the central post, with one end abutting against the button and the other end abutting against the seat. The second elastic body generates an elastic force that drives the button away from the seat.

8. The knob structure according to claim 7, characterized in that, The control unit is disposed on the base and includes a first control unit and a second control unit, wherein the second control unit includes contacts; The button includes a pressure head that protrudes from the end of the central post and faces the contact point; When the knob is rotated to a predetermined angle, the first control unit generates a first control signal, the pressure head presses against the contact point, and the second control unit generates a second control signal.

9. The knob structure according to claim 8, characterized in that, The seat includes: Chassis; and The mounting plate is fixedly connected to the chassis and has a first stepped hole that penetrates the mounting plate, and the mounting plate forms the mounting post. The control unit also includes a circuit board disposed on the chassis. The first control unit and the second control unit are disposed on the side of the circuit board near the mounting plate. The second control unit is located in the small diameter section of the first stepped hole, and one end of the second elastic body abuts against the platform of the first stepped hole.

10. The knob structure according to claim 9, characterized in that, The knob has a first mounting surface facing the chassis and surrounding the mounting plate; The first control unit includes: The photoelectric encoder disk is bonded to the first mounting surface on one side and spaced apart from the chassis on the other side. A photoelectric sensor is disposed on the circuit board and includes a sensing head, the sensing head being oriented toward the photoelectric encoder.

11. The knob structure according to claim 9, characterized in that, The mounting plate has multiple first positioning holes; The button also includes: Pressing body; Multiple first anti-rotation pins are correspondingly arranged with multiple first positioning holes, and the pressing body extends into the corresponding first positioning hole respectively; and An annular flange is located in the central hole, and the annular flange and the opposite side of the central hole form a first sealing groove; The knob structure also includes a first sealing ring, which is disposed in the first sealing groove.

12. The knob structure according to claim 11, characterized in that, The knob has a second mounting surface located at one end of the knob; The knob structure also includes: A retaining ring is fixedly connected to the second mounting surface, and the knob rotates synchronously with the retaining ring. The inner edge of the retaining ring abuts against and slides relative to the edge of the chassis on the side opposite to the mounting plate.

13. The knob structure according to claim 12, characterized in that, The central hole is a second-step hole, and the annular flange is located in the large-diameter section of the second-step hole; The elastic force at one end of the second elastic body acts on the platform of the second stepped hole through the annular flange, and the elastic force at the other end acts on the retaining ring through the chassis.

14. The knob structure according to claim 12, characterized in that, The knob has a second receiving groove located at one end of the knob away from the central hole, and the second mounting surface is located at the top of the second receiving groove; The chassis is disposed in the second receiving groove, and a second sealing groove is formed between the side of the chassis and the side of the second receiving groove; The knob structure also includes a second sealing ring, which is disposed in the second sealing groove.

15. An electronic device, characterized in that, The electronic device includes: The knob structure according to any one of claims 1-14.

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