A knob type hand controller

CN224708396UActive Publication Date: 2026-09-01CHANGZHOU KAIDI ELECTRICAL INC
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521553232.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-09-01
Estimated Expiration
2035-07-24

AI Technical Summary

Technical Problem

[0004]1)两段弧形槽由把手与安装轴两个零件拼合而成,而弧形弹簧在拼合前装入,安装过程中弧形弹簧非常容易弹走,装配难度大且效率低;

Benefits of technology

[0030]1)在旋转过程中,中间不动,只有旋钮转动,通过旋钮绕支撑座作双向旋转,旋转时压缩弹簧蓄能,旋钮的凸台触发触控开关,从而控制沙发的动作,旋停时,旋钮复位,对应的姿态停止动作,定位,完成沙发的姿态调节;

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224708396U_ABST
    Figure CN224708396U_ABST
Patent Text Reader

Abstract

The utility model relates to hand controller technical field especially a knob type hand controller, the knob part is in the top shell, and the knob is bidirectional rotation relative to the top shell, the top shell and bottom shell are pasted together, and the annular groove is matched with the shell body sliding slot to form the slide, and the spring is installed in the sliding slot, and the through -going insertion hole that passes through the slide is set up on the slide between two springs along the axial direction, and two springs are separated, and the boss of knob is inserted into the slide through -hole, and extends into the bottom shell, is close to touch -control switch, and the knob rotates, and triggers the touch -control switch on the first circuit board, and controls the action of home. In the rotation process, the middle does not move, only the knob rotates, rotates around the support seat through the knob and makes bidirectional rotation, and the boss triggers the touch -control switch, and controls the action of sofa, and the corresponding posture stops the action when rotating and stopping, and is positioned; the spring realizes the bidirectional rotation self -reset of knob, and the reset position is accurate, and the spring does not come out in the installation process, and the symmetrical layout of double spring offsets the influence of unilateral spring force attenuation, and still can keep balance for a long time.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of hand controller technology, and in particular to a rotary hand controller. Background Technology

[0002] Electric smart home controllers on the market generally use buttons or rocker switches, typically only supporting "pressing" or "flipping" actions, offering limited functionality and lacking a sense of interactive hierarchy. Furthermore, traditional controllers tend to have homogenous industrial designs, often featuring square or strip-shaped plastic casings, lacking innovative forms and failing to meet the aesthetic demands of high-end home environments.

[0003] Based on the above requirements, rotary hand controllers have emerged as a novel design approach. Chinese patent CN217822514U discloses a self-resetting rotary switch operating device, including a handle, a mounting shaft, and two arc-shaped springs. The handle is rotatably mounted on the mounting shaft, forming two circumferentially arranged arc-shaped grooves between the handle and the shaft. The two arc-shaped springs are respectively assembled within these grooves, tensioned between the mounting shaft and the handle. When the handle rotates forward around the mounting shaft, one arc-shaped spring is compressed; when the handle rotates backward around the shaft, the other arc-shaped spring is compressed. After releasing the handle, the compressed arc-shaped springs automatically reset. This technical solution represents a breakthrough in the user experience of hand controllers, but it suffers from the following problems:

[0004] 1) The two arc-shaped grooves are assembled from two parts: the handle and the mounting shaft. The arc spring is installed before assembly. During the installation process, the arc spring is very easy to bounce away, making assembly difficult and inefficient.

[0005] 2) Only curved springs are supported, resulting in higher costs;

[0006] 3) During installation, it is difficult to apply a large preload to the arc springs, and the initial position of the handle depends entirely on the balance of the elasticity of the two arc springs. After long-term use, the elasticity of the arc springs decays unevenly, causing the initial position to shift and the reset to be inaccurate. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a rotary hand controller in order to solve the problems existing in the prior art in the background art.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a knob-type hand controller, including...

[0009] Top shell,

[0010] The bottom shell is assembled at the lower end of the top shell, and the first circuit board is installed inside the bottom shell;

[0011] The knob is installed in the top shell and can rotate bidirectionally relative to the top shell.

[0012] The support base is inserted into the top shell from the knob side, and the knob is axially mounted on the top shell through the support base.

[0013] The top shell has an annular groove on its bottom surface and a sliding groove on its top surface. After the top and bottom shells are assembled, the annular groove and the sliding groove cooperate to form a slide. Springs are provided on both sides of the slide. A through hole is provided in the middle of the slide. The boss of the knob is inserted into the through hole of the slide and extends into the bottom shell. Two springs are located on both sides of the boss. Two touch switches are provided on the first circuit board. In the initial position, the boss does not trigger the touch switches. When the knob is rotated, the boss of the knob rotates and compresses one side of the spring, and the end of the boss triggers the touch switch. When the rotation is stopped and the knob is released, the knob returns to the initial position under the action of the spring.

[0014] Further through-holes are divided into annular groove through-holes on the top shell and sliding groove through-holes on the top surface of the bottom shell and middle shell body.

[0015] A limiting structure is provided on the inner wall of the annular groove. The limiting structure is located on the inner wall of the annular groove with the annular groove through hole. The limiting structure divides the annular groove into an initial slide groove and a symmetrically arranged spring slide groove. The spring is installed in the spring slide groove, and the boss of the knob is inserted into the initial slide groove.

[0016] Furthermore, the bottom shell includes a shell body and a bottom cover, the groove is formed on the top surface of the shell body, and the groove through hole is formed on the bottom surface of the groove;

[0017] Limiting through holes are opened on the shell body plates at both ends of the slide, and the limiting structure in the top shell is inserted into the limiting through holes to form a closed slide.

[0018] The further groove has a notch on its edge, which cooperates with the limiting structure in the top shell;

[0019] The upper plate of the shell body has a protrusion in the middle, and a through hole is provided in the middle of the protrusion.

[0020] Furthermore, a rotating groove is provided on the upper plate of the top shell, and a central through hole is provided at the center of the rotating groove. A limiting protrusion is provided on the bottom surface of the rotating groove, and the inner side of the limiting protrusion is flush with the inner wall of the central through hole.

[0021] The further support includes a support body, a connecting part, and an extension part, which are connected in a stepped manner.

[0022] The extension is inserted into the central through hole of the top shell. A support through hole is provided on the middle plate of the extension. Screw holes are also provided on the plate of the extension on both sides of the support through hole. A protrusion is provided on the inner peripheral wall of the support through hole. A groove is cut through the transverse direction of the extension at the center of the bottom surface of the extension. The bottom surface of the groove is the bottom surface of the protrusion.

[0023] The edge of the connecting part is provided with symmetrically arranged limiting holes and mounting posts, and the limiting holes cooperate with the limiting protrusions in the top shell.

[0024] The further knob includes a knob body, which is a knob body with a knob groove. A knob through hole is provided at the middle position of the bottom of the knob groove. A second raceway is provided on the bottom surface of the knob groove. A downward-facing boss is provided on the bottom surface of the knob.

[0025] A second circuit board is placed on a further support base. The bottom surface of the support base body has an upwardly protruding part, the top surface of the protruding part is flat, and a positioning post for positioning the second circuit board is installed on the top surface of the protruding part. The bottom surface of the protruding part has an upwardly concave first raceway. After the support base and the knob are assembled, the first raceway and the second raceway in the knob are assembled into a complete raceway. Steel balls for reducing friction are placed in the raceway.

[0026] A second circuit board is placed on a further support and sealed by an end cap. The end cap and the second circuit board are axially mounted on the support. A plug is installed on the lower surface of the second circuit board, and a display screen and / or USB port and / or light are integrated on the upper surface of the second circuit board.

[0027] The first circuit board is located between the shell body and the bottom cover. A socket is provided on the surface of the first circuit board. The plug and socket are connected in the second circuit board. The second circuit board and the first circuit board are electrically connected. A bottom cover through hole is provided in the center of the bottom cover. The cable passes through the bottom cover through hole and connects to the first circuit board.

[0028] Two touch switches are located on the edge of the first circuit board, facing the through-hole. The touch switches have openings. When the knob is rotated, the knob's protrusion enters the opening, triggering the touch switch.

[0029] The beneficial effects of this utility model are:

[0030] 1) During the rotation, the center remains stationary, only the knob rotates. The knob rotates bidirectionally around the support base. When rotating, the spring is compressed and stores energy. The knob's protrusion triggers the touch switch, thereby controlling the sofa's movement. When the rotation stops, the knob resets, the corresponding posture stops, and the sofa is positioned, thus completing the posture adjustment.

[0031] 2) The knob achieves bidirectional rotation and self-reset via a spring, with precise reset position and easy installation. The spring will not come out during installation, and the symmetrical layout of the two springs offsets the effect of unilateral spring force attenuation, maintaining balance even after long-term use and improving customer experience.

[0032] 3) Simplify the structure and save costs; because the top shell has a limit structure and spring groove, not only can arc springs be used, but also cheaper ordinary direct compression springs can be used. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a structural schematic diagram of another aspect of the present invention;

[0036] Figure 3 This is an exploded view of this utility model;

[0037] Figure 4 This is a cross-sectional view of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of the present invention after the spring and knob are installed inside the top shell;

[0039] Figure 6 This is a schematic diagram of the top shell structure of this utility model;

[0040] Figure 7 This is a utility model Figure 6 A structural diagram from another direction;

[0041] Figure 8 A schematic diagram of the structure of the shell body of this utility model;

[0042] Figure 9 This is a utility model Figure 8 A structural diagram from another direction;

[0043] Figure 10 This is a front view of the knob of this utility model;

[0044] Figure 11 This is a perspective view of the knob of this utility model;

[0045] Figure 12 This is a schematic diagram of the structure of the support base of this utility model;

[0046] Figure 13 This is a utility model Figure 11 Structural diagram;

[0047] Figure 14 This is a schematic diagram of the structure of the first circuit board of this utility model;

[0048] Figure 15 This is a schematic diagram of the structure of this utility model after the panel is opened;

[0049] In the diagram: 1. Top shell, 2. Limiting structure, 3. Spring groove, 4. Spring, 5. Initial groove, 6. Annular groove through hole, 7. Knob, 8. First circuit board, 9. Shell body, 10. Boss, 11. Groove, 12. Notch, 13. Groove through hole, 14. Rotating countersunk groove, 15. Protrusion, 16. Through hole, 17. Limiting through hole, 18. Socket, 19. Touch switch, 20. Center through hole. 21. Support base, 22. Limiting protrusion, 23. Knob recess, 24. Knob through hole, 25. Bottom cover, 26. Second circuit board, 27. Plug, 28. Extension, 29. Support through hole, 30. Limiting hole, 31. Bottom cover through hole, 32. Annular groove, 33. Second raceway, 34. Screw hole, 35. Groove, 36. Mounting post, 37. Protrusion, 38. First raceway, 39. Positioning post. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0051] like Figures 1-15 The rotary hand controller shown can be applied to smart home products such as electric sofas and electric beds, including...

[0052] Top shell 1,

[0053] The bottom shell is assembled at the lower end of the top shell 1. The bottom shell includes a shell body 9 and a bottom cover 25, and a first circuit board 8 is installed inside the bottom shell.

[0054] Knob 7 is inserted into top shell 1 and can rotate bidirectionally relative to top shell 1.

[0055] Support base 21 is inserted into top shell 1 from one side of knob 7 and is circumferentially fixed to top shell 1. Knob 7 is axially mounted on top shell 1 through support base 21.

[0056] The top shell 1 has an annular groove 32 on its bottom surface and a sliding groove 11 on its top surface. After the top shell 1 and the bottom shell are assembled, the annular groove 32 and the sliding groove 11 cooperate to form a sliding track, such as... Figure 7 As shown, symmetrically arranged springs 4 are installed in the slide. A through hole is opened in the slide between the two springs 4 along the axial direction to separate the two springs 4. The boss 10 of the knob 7 is inserted into the through hole of the slide and extends into the bottom shell, close to the touch switch 19 on the first circuit board 8. The knob 7 is rotated to compress one side of the spring 4, and the boss 10 of the knob 7 triggers the touch switch 19 on the first circuit board 8.

[0057] like Figures 7-8As shown, the through-hole is divided into an annular groove through-hole 6 opened on the top shell 1 and a sliding groove through-hole 13 opened on the top surface of the bottom shell and middle shell body 9.

[0058] like Figure 7 As shown, a limiting structure 2 is provided on the inner wall of the annular groove 32. The limiting structure 2 is located on the inner wall of the annular groove 32 with the annular groove through hole 6. The limiting structure 2 divides the annular groove 32 to form an initial sliding groove 5 and a symmetrically arranged spring sliding groove 3. At the same time, the design of the limiting structure 2 and the spring sliding groove 3 allows the spring 4 to be pre-stable installed in the spring sliding groove 3 of the top shell 1. The spring 4 will not come out during the installation process, and the structure is simplified and the installation is convenient.

[0059] like Figure 5 As shown, spring 4 is installed in spring groove 3. When spring 4 is installed, it is in a compressed state, realizing the bidirectional rotation and self-resetting of knob 7. The reset position is highly accurate. The symmetrical layout of the two springs 4 offsets the effect of unilateral elastic force attenuation. It can still maintain balance after long-term use. In addition, spring 4 is an arc spring or a cheaper direct compression spring, which saves costs.

[0060] The boss 10 of the knob 7 is inserted into the initial slide groove 5, which is the initial position of the boss 10 of the knob 7.

[0061] like Figure 6 As shown, a rotating groove 14 is provided on the upper plate of the top shell 1, and a central through hole 20 is provided at the center of the rotating groove 14 to form a rotating axis, ensuring that the force is even when the knob 7 rotates in both directions; a limiting protrusion 22 is provided on the bottom surface of the rotating groove 14, and the inner side of the limiting protrusion 22 is flush with the inner wall of the central through hole 20.

[0062] like Figures 8-9 As shown, the slide groove 11 is formed on the top surface of the shell body 9, and the slide groove through hole 13 is formed on the bottom surface of the slide groove 11;

[0063] Limiting through holes 17 are opened on the shell body 9 plate at both ends of the slide groove 11. The limiting structure 2 in the top shell 1 is inserted into the limiting through hole 17 to form a closed slide groove 11.

[0064] like Figure 8 As shown, a notch 12 is provided on the edge of the groove 11, and the notch 12 cooperates with the limiting structure 2 in the top shell 1.

[0065] A protrusion 15 is provided in the middle of the upper plate of the shell body 9. A through hole 16 is provided in the middle of the protrusion 15. The protrusion 15 is nested with the through hole 20 in the center of the top shell to form a double positioning and enhance the overall structural rigidity.

[0066] like Figures 10-11As shown, the knob 7 includes a knob body. The upper outer peripheral wall of the knob body is provided with a friction part to increase friction and facilitate the rotation of the knob 7. The knob body is a knob body with a knob groove 23. The knob body and the rotation groove 14 of the top shell 1 are nested together to improve the rotation stability of the knob and reduce shaking.

[0067] A knob through hole 24 is provided at the bottom center of the knob recess 23, such as... Figure 10 As shown, a second raceway 33 is provided on the bottom surface of the knob recess 23; as Figure 11 As shown, the bottom surface of the knob 7 has a downward-facing boss 10.

[0068] like Figures 12-13 As shown, the support base 21 includes a support base body, a connecting part, and an extension part 28, which are connected in a stepped manner.

[0069] The extension 28 is inserted into the central through hole 20 of the top shell 1. A support through hole 29 is provided on the middle plate surface of the extension 28. The second circuit board 26 is located on the upper surface of the support base 21, and the plug 27 on the second circuit board 26 is inserted into the support through hole 29, achieving a compact layout and facilitating rapid assembly.

[0070] Screw holes 34 are also provided on the plate surface of the extension 28 on both sides of the support through hole 29. A protrusion is provided on the inner peripheral wall of the support through hole 29. A groove 35 that runs through the transverse direction of the extension 28 is cut at the center of the bottom surface of the extension 28. The bottom surface of the groove 35 is the bottom surface of the protrusion.

[0071] like Figure 12 As shown, symmetrically arranged limiting holes 30 and mounting posts 36 are provided on the edge of the connecting part. The limiting holes 30 cooperate with the limiting protrusions 22 in the top shell 1 to limit the installation position of the support 21 and improve assembly efficiency.

[0072] like Figure 12 As shown, the bottom surface of the support body has an upwardly protruding part 37, such as... Figure 13 As shown, the bottom surface of the protrusion 37 is provided with an upwardly concave first raceway 38. After the support base 21 and the knob 7 are assembled, the first raceway 38 and the second raceway 33 in the knob 7 are assembled into a complete raceway. Steel balls are placed in the raceway to reduce friction. The friction between the support base 21 and the knob 7 is reduced by the steel balls, thereby improving the smoothness of rotation.

[0073] The top surface of the protrusion 37 is flat, and a positioning post 39 for positioning the second circuit board 26 is installed on the top surface of the protrusion 37.

[0074] like Figure 14As shown, a second circuit board 26 is placed on the support base 21 and sealed by an end cover. The end cover and the second circuit board 26 are axially mounted on the support base 21. The second circuit board 26 is plugged into the first circuit board 8 to form an electrical connection. In addition, the second circuit board 26 integrates a display screen and / or a USB port and / or a light.

[0075] like Figure 14 As shown, the first circuit board 8 is located between the housing body 9 and the bottom cover 25. A socket 18 is provided on the surface of the first circuit board 8. The plug 27 in the second circuit board 26 is connected to the socket 18, simplifying the maintenance and replacement process. The second circuit board 26 and the first circuit board 8 form an electrical connection. The circuit design is modular. A bottom cover through hole 31 is provided in the center of the bottom cover 25. The cable passes through the bottom cover through hole 31 and connects to the first circuit board 8. The bottom cover through hole 31 provides cable routing space to avoid internal wiring tangling. The cable connects to various electrical control components in the home.

[0076] The first circuit board 8 is equipped with two touch switches 19, which are directly opposite the through-hole. The touch switches 19 have openings to ensure that the knob protrusion 10 accurately triggers the switch action and reduces misoperation. When the knob 7 is rotated, the protrusion 10 of the knob 7 rotates into the opening and triggers the touch switch 19.

[0077] Work process:

[0078] Step 1: Initial position, spring 4 is located in the spring groove 3 of the top shell 1, and the shell body 9 radially limits spring 4;

[0079] Step 2: The knob 7 is located in the rotating groove 14 of the top shell 1 and is fixed by the support base 21. The knob 7 can rotate bidirectionally around the support base 21. The operation positions include the first operation position and the second operation position. The two operation knob 7 are in opposite directions. When in the first operation position or the second operation position, the boss 10 on the knob 7 will trigger the touch switch 19 in the rotation direction.

[0080] Step 3: Stop rotating and release knob 7. Knob 7 returns to its initial position from the first or second operating position due to the restoring force of spring 4. Boss 10 releases the trigger touch switch 19.

[0081] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotary hand controller, characterized in that: include Top shell (1), The bottom shell is assembled at the lower end of the top shell (1), and the first circuit board (8) is installed inside the bottom shell; Knob (7), the knob (7) is partially installed in the top shell (1), and the knob (7) can rotate bidirectionally relative to the top shell (1); Support base (21) is inserted into top shell (1) from the knob (7) side, and knob (7) is axially mounted on top shell (1) through support base (21); The bottom surface of the top shell (1) is provided with an annular groove (32), and the top surface of the bottom shell is provided with a sliding groove (11). After the top shell (1) and the bottom shell are assembled, the annular groove (32) and the sliding groove (11) cooperate to form a slide. Springs (4) are provided on both sides of the slide. A through hole is provided in the middle of the slide. The boss (10) of the knob (7) is inserted into the through hole of the slide and extends into the bottom shell. The two springs (4) are located on both sides of the boss (10). Two touch switches (19) are provided on the first circuit board (8). In the initial position, the boss (10) does not trigger the touch switch (19). When the knob (7) is rotated, the boss (10) of the knob (7) rotates and compresses one side of the spring (4). The end of the boss (10) triggers the touch switch (19). When the rotation is stopped and the knob (7) is released, the knob (7) returns to the initial position under the action of the spring (4).

2. A rotary hand controller according to claim 1, characterized in that: The through holes are respectively the annular groove through hole (6) opened on the top shell (1) and the sliding groove through hole (13) opened on the top surface of the bottom shell and the middle shell body (9). A limiting structure (2) is provided on the inner wall of the annular groove (32). The limiting structure (2) is located on the inner wall of the annular groove (32) with the annular groove through hole (6). The limiting structure (2) divides the annular groove (32) into an initial slide groove (5) and a symmetrically arranged spring slide groove (3). The spring (4) is installed in the spring slide groove (3). The boss (10) of the knob (7) is inserted into the initial slide groove (5).

3. A rotary hand controller according to claim 1, characterized in that: The bottom shell includes a shell body (9) and a bottom cover (25). The groove (11) is formed on the top surface of the shell body (9), and the groove through hole (13) is formed on the bottom surface of the groove (11). Limiting through holes (17) are opened on the plate surface of the shell body (9) at both ends of the slide (11), and the limiting structure (2) in the top shell (1) is inserted into the limiting through hole (17) to form a closed slide (11).

4. A rotary hand controller according to claim 2, characterized in that: The groove (11) has a notch (12) on its edge, which cooperates with the limiting structure (2) in the top shell (1); The upper plate of the shell body (9) has a protrusion (15) in the middle, and a through hole (16) is provided in the middle of the protrusion (15).

5. A rotary hand controller according to claim 1, characterized in that: The top shell (1) has a rotating groove (14) on its upper plate surface. A central through hole (20) is provided at the center of the rotating groove (14). A limiting protrusion (22) is provided on the bottom surface of the rotating groove (14). The inner side of the limiting protrusion (22) is flush with the inner wall of the central through hole (20).

6. A knob controller according to claim 5, wherein: The support base (21) includes a support base body, a connecting part and an extension part (28), which are connected in a stepped manner. The extension (28) is inserted into the central through hole (20) of the top shell (1). A support through hole (29) is provided on the middle plate of the extension (28). Screw holes (34) are also provided on the plate of the extension (28) on both sides of the support through hole (29). A protrusion is provided on the inner peripheral wall of the support through hole (29). A groove (35) is cut in the center of the bottom surface of the extension (28) in the transverse direction. The bottom surface of the groove (35) is a raised bottom surface. The edge of the connecting part is provided with symmetrically arranged limiting holes (30) and mounting posts (36), and the limiting holes (30) cooperate with the limiting protrusions (22) in the top shell (1).

7. A knob controller according to claim 1, wherein: The knob (7) includes a knob body, which is a knob body with a knob groove (23). A knob through hole (24) is provided at the middle position of the bottom of the knob groove (23). A second raceway (33) is provided on the bottom surface of the knob groove (23). A downward-facing boss (10) is provided on the bottom surface of the knob (7).

8. A knob controller according to claim 7, wherein: The support base (21) is on which a second circuit board (26) is placed. The bottom surface of the support base body is provided with an upward protrusion (37). The top surface of the protrusion (37) is a plane. A positioning post (39) for positioning the second circuit board (26) is installed on the top surface of the protrusion (37). The bottom surface of the protrusion (37) is provided with an upwardly concave first raceway (38). After the support base (21) and the knob (7) are assembled, the first raceway (38) and the second raceway (33) in the knob (7) are assembled into a complete raceway. Steel balls for reducing friction are placed in the raceway.

9. A knob controller according to claim 1, wherein: The support base (21) is on which a second circuit board (26) is placed and sealed by an end cap. The end cap and the second circuit board (26) are axially mounted on the support base (21). A plug (27) is installed on the lower surface of the second circuit board (26), and a display screen and / or USB port and / or light are integrated on the upper surface of the second circuit board (26).

10. A knob controller according to claim 9, wherein: The first circuit board (8) is located between the shell body (9) and the bottom cover (25). A socket (18) is provided on the surface of the first circuit board (8). The plug (27) in the second circuit board (26) is connected to the socket (18). The second circuit board (26) and the first circuit board (8) are electrically connected. A bottom cover through hole (31) is provided at the center of the bottom cover (25). The cable passes through the bottom cover through hole (31) and connects to the first circuit board (8). Two touch switches (19) are provided at the edge of the first circuit board (8). The touch switches (19) are directly opposite the through-hole. The touch switches (19) have openings. When the knob (7) is rotated, the boss (10) of the knob (7) rotates into the opening and triggers the touch switches (19).

Citation Information

Patent Citations

  • Self-resetting rotary switch operating device

    CN217822514U