Temperature control switch
By incorporating an extension section and a groove in the temperature control switch, and utilizing guide posts and guide ramps to stabilize the spring, the problem of damage caused by direct contact between the spring and the PCB board is solved, achieving stable spring extension and contraction while protecting the PCB board.
Patent Information
- Application Number
- CN202520410264.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In existing temperature control switches, the spring directly presses against the PCB board, which can easily lead to damage to the PCB board after prolonged use.
An extension section and a groove are provided on the switch bracket, the spring is placed in the groove, the guide post is sleeved on the spring, and the stability and guiding effect of the spring are ensured by the guide slope and the limiting structure, so as to avoid the spring directly contacting the PCB board.
It protects the PCB board from damage, ensures the stability and guiding effect of the spring's extension and contraction, and improves the service life of the temperature control switch.
Smart Images
Figure CN223927301U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of switches, and more particularly to a temperature control switch. Background Technology
[0002] A temperature control switch is used to control temperature. It consists of a spring-loaded button and a spring; the spring causes the button to spring back after being pressed.
[0003] In existing technology, temperature control switches also include a button insert, a switch bracket, and a PCB board. The button insert and the PCB board are respectively mounted on both sides of the switch bracket, and a spring is mounted on the button insert. To ensure the spring's expansion and contraction space, a through hole is made in the switch bracket for the spring to pass through, so that both ends of the spring abut against the button insert and the PCB board respectively. With this configuration, the spring directly presses against the PCB board, which can easily damage the PCB board due to prolonged pressing. Utility Model Content
[0004] To protect the PCB board, this application provides a temperature control switch.
[0005] This application provides a temperature control switch, which adopts the following technical solution:
[0006] A temperature control switch includes a button liner, a switch bracket, and a spring. The switch bracket has an extension section extending away from the button liner. A groove is formed through the switch bracket. A groove extending along the pressing direction of the button liner to the extension section is formed on the side wall of the switch bracket near the button liner. The spring is disposed in the groove.
[0007] By adopting the above technical solution, the switch bracket extends into the PCB board and has grooves for the spring to be placed. This not only ensures the extension length of the spring, but also prevents the spring from directly pressing against the PCB board. Instead, the spring presses against the bottom wall of the groove, thus avoiding damage to the PCB board.
[0008] Optionally, a guide post is provided in the groove, and the spring is sleeved on the guide post.
[0009] By adopting the above technical solution, the spring is sleeved on the guide post, and the spring is not prone to deformation or skewing when it extends and retracts, thus ensuring the stability of the spring's extension and retraction and minimizing any impact on the button's rebound and reset.
[0010] Optionally, the extension section has a small-diameter hole that extends along the pressing direction of the button liner and communicates with the groove. The diameter of the small-diameter hole is smaller than the diameter of the spring. The diameter of the end of the guide post away from the button liner is smaller than the diameter of the small-diameter hole. The small-diameter hole is used for the guide post to extend into.
[0011] By adopting the above technical solution, the guide post can be set long enough so that when the button is pressed, the guide post can extend into the small-diameter hole, ensuring the guiding effect on the spring.
[0012] Optionally, a guide slope is formed on the side wall of the guide post, and the distance between the guide slope and the central axis of the guide post decreases along the arrangement direction of the button liner and the switch bracket.
[0013] By adopting the above technical solution, the guide ramp makes it easier for workers to install the spring onto the guide post.
[0014] Optionally, a spring groove is provided on the surface of the button liner near the switch bracket, and the spring groove is for the end of the spring to be inserted.
[0015] By adopting the above technical solution, the spring groove allows the spring end to extend into, which can limit the spring end and minimize the swaying of the spring during extension and contraction.
[0016] Optionally, it also includes a knob and a PCB board, wherein the PCB board is mounted on the switch bracket, and the knob is rotatably mounted on the PCB board and electrically connected to the PCB board.
[0017] By adopting the above technical solution, the knob is electrically connected to the PCB board and can rotate relative to the PCB board. When the knob rotates, the control program on the PCB board realizes stepless adjustment of the control temperature.
[0018] Optionally, the knob includes a housing, a connector, and a rotating component. The connector is disposed on the housing, and the rotating component is disposed on the connector. An anti-rotation structure is provided between the housing and the connector, as well as between the connector and the rotating component.
[0019] By adopting the above technical solution, the outer shell is connected to a connecting part and a rotating part, and the transmission is carried out through an anti-rotation structure, so that the rotation of the outer shell drives the connecting part and the rotating part to rotate synchronously. In addition, if the knob is made into an integral structure, the knob will be an irregular structure, which is difficult to manufacture. However, this application separates the knob into an outer shell, a connecting part and a rotating part, which facilitates manufacturing.
[0020] Optionally, the anti-rotation structure includes an anti-rotation groove formed on the outer shell and the rotating component, and an anti-rotation block provided on the connecting component, wherein the anti-rotation groove is used for inserting the anti-rotation block.
[0021] By adopting the above technical solution, the outer shell, connecting parts and rotating parts can rotate synchronously by inserting the anti-rotation block into the anti-rotation groove, which ensures stable transmission. Moreover, the structure of the anti-rotation block and anti-rotation groove is simple and easy to process.
[0022] Optionally, the connector is provided with a buckle, and the rotating part is provided with a slot for the buckle to be inserted. The connector and the rotating part are connected by the buckle and the slot.
[0023] By adopting the above technical solution, the connector and the rotating part are snapped together, which facilitates the assembly and disassembly of the connector and the rotating part.
[0024] Optionally, a guide slope is formed on the side wall of the rotating component, and the distance between the guide slope and the rotation axis of the rotating component increases along the direction in which the buckle slides into the slot.
[0025] By adopting the above technical solution, the guide slope can guide the deformation of the buckle, prevent the buckle from being stuck by the side wall of the rotating part when the connecting part and the rotating part move relative to each other, and facilitate assembly.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. It not only ensures the extension and retraction length of the spring, but also prevents damage to the PCB board;
[0028] 2. The spring is sleeved on the guide post to ensure the stability of the spring's extension and contraction;
[0029] 3. The guide post can be set long enough to ensure the guiding effect on the spring. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of this application.
[0031] Figure 2 It is along Figure 1 Sectional view of AA.
[0032] Figure 3 yes Figure 2 Enlarged view of section B in the middle.
[0033] Figure 4 This is a structural diagram of the button component displayed in this application.
[0034] Figure 5 It is along Figure 1 A sectional view of CC.
[0035] Figure 6 yes Figure 5 Enlarged view of point D in the middle.
[0036] Figure 7 This is a schematic diagram of the knob in this application.
[0037] Figure 8 This is an exploded view of the knob in this application.
[0038] Explanation of reference numerals in the attached drawings: 1. Button liner; 11. Guide post; 111. Guide slope; 12. Spring groove; 2. Switch bracket; 21. Extension section; 22. Groove; 23. Small diameter hole; 3. Spring; 4. Knob; 41. Housing; 42. Connector; 421. Buckle; 43. Rotating component; 431. Slot; 432. Guide slope; 5. PCB board; 51. Mounting hole; 6. Fixing component; 61. Mounting rod; 7. Anti-rotation structure; 71. Anti-rotation groove; 72. Anti-rotation block; 8. Button panel; 9. Button assembly. Detailed Implementation
[0039] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.
[0040] This application discloses a temperature control switch. (Refer to...) Figure 1 and Figure 2 The temperature control switch includes a button panel 8, a button inner liner 1, a switch bracket 2, a PCB board 5, and a spring 3. The button panel 8 is mounted on the button inner liner 1. The button inner liner 1 and the PCB board 5 are respectively arranged on both sides of the switch bracket 2. The button inner liner 1 and the switch bracket 2 are snap-fit connected. The PCB board 5 is fixedly mounted on the switch bracket 2 by a bolt assembly.
[0041] Reference Figure 2 and Figure 3 An extension segment 21 is integrally formed on the side wall of the switch bracket 2 away from the button liner 1, extending in a direction away from the button liner 1. A groove 22 is formed on the side wall of the switch bracket 2 near the button liner 1, extending along the extension direction of the spring 3 to the extension segment 21, and the spring 3 extends and retracts within the groove 22.
[0042] Reference Figure 2 and Figure 3 A guide post 11 is integrally formed on the side wall of the button liner 1 near the switch bracket 2. The guide post 11 extends in the direction close to the switch bracket 2 and is coaxially arranged with the groove 22. The spring 3 is sleeved on the guide post 11. A guide slope 111 is formed on the side wall of the guide post 11. The distance between the guide slope 111 and the central axis of the guide post 11 gradually decreases along the arrangement direction of the button liner 1 and the switch bracket 2, thereby facilitating the installation of the spring 3. In this embodiment, the guide post 11 is frustum-shaped, and the guide slope 111 is the outer peripheral surface of the guide post 11.
[0043] Reference Figure 2 and Figure 3The extension section 21 has a small-diameter hole 23 extending along the extension direction of the spring 3, with a diameter smaller than that of the groove 22. The small-diameter hole 23 is coaxially arranged with the groove 22 and communicates with the groove 22. The diameter of the small-diameter hole 23 is smaller than that of the spring 3. The diameter of the end of the guide post 11 near the PCB board 5 is smaller than that of the small-diameter hole 23. The guide post 11 extends into the small-diameter hole 23.
[0044] Reference Figure 2 and Figure 3 A spring groove 12 is provided on the inner liner of the button 1 around the outer periphery of the guide post 11. The spring groove 12 allows the end of the spring 3 near the inner liner of the button to be inserted, thereby limiting the end of the spring 3.
[0045] Reference Figure 2 and Figure 4 The button liner 1 has four button components 9, which correspond to four sets of springs 3. The button components 9 are used for personalized control of temperature, light and other functions.
[0046] Reference Figure 5 A fixing component 6 is mounted on the PCB board 5. The PCB board 5 has mounting holes 51. A mounting rod 61 is integrally formed on the fixing component 6, and the mounting holes 51 allow the mounting rod 61 to be inserted. The fixing component 6 is electrically connected to the PCB board 5. The temperature control switch also includes a knob 4, which is rotatably mounted on and electrically connected to the fixing component 6. The knob 4 includes a housing 41, a connector 42, and a rotating component 43, which are sequentially fixedly connected. The housing 41 and the connector 42, as well as the connector 42 and the rotating component 43, are snap-fitted together. The housing 41, the connector 42, and the rotating component 43 are all rotating bodies.
[0047] Reference Figure 5 and Figure 6 Taking the snap-fit connection between the connector 42 and the rotating part 43 as an example, the connector 42 has a snap-fit 421 integrally formed on it, and the rotating part 43 has a slot 431 for the snap-fit 421 to be inserted into. A guide slope 432 is formed on the side wall of the rotating part 43. The distance between the guide slope 432 and the rotation axis of the rotating part 43 gradually increases along the direction in which the snap-fit 421 slides into the slot 431. The guide slope 432 is used for the snap-fit 421 to abut against, so as to guide the deformation of the snap-fit 421.
[0048] Reference Figure 7 and Figure 8 An anti-rotation structure 7 is provided between the outer shell 41 and the connector 42 and between the connector 42 and the rotating member 43. The anti-rotation structure 7 includes an anti-rotation groove 71 formed on the outer shell 41 and the rotating member 43 and an anti-rotation block 72 integrally formed on the connector 42. The anti-rotation groove 71 is for the anti-rotation block 72 to be inserted.
[0049] The working principle of a temperature control switch according to an embodiment of this application is as follows: Knob 4 can be pressed to trigger the main switch circuit, and can also be rotated to infinitely adjust the temperature. Users can adjust the temperature or lighting by pressing the button panel 8. When the button panel 8 is pressed, the button inner liner 1 moves towards the switch bracket 2, compressing the spring 3. The end of the guide post 11 extends into the small-diameter hole 23, guiding the extension and retraction of the spring 3.
[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A temperature controlled switch, characterized by: The key lining (1), the switch support (2) and the spring (3) are included, the extension section (21) extending away from the key lining (1) is formed on the switch support (2), the recess (22) extending to the extension section (21) along the pressing direction of the key lining (1) is opened on the side wall of the switch support (2) close to the key lining (1), and the spring (3) is arranged in the recess (22).
2. The temperature controlled switch of claim 1, wherein: The guide column (11) is arranged in the recess (22), and the spring (3) is sleeved on the guide column (11).
3. The temperature controlled switch of claim 2, wherein: The small-diameter hole (23) extending along the pressing direction of the key lining (1) and communicating with the recess (22) is opened on the extension section (21), the diameter of the small-diameter hole (23) is smaller than the diameter of the spring (3), the diameter of the end of the guide column (11) away from the key lining (1) is smaller than the diameter of the small-diameter hole (23), and the small-diameter hole (23) is used for the guide column (11) to extend into.
4. The temperature controlled switch of claim 2, wherein: The guide inclined surface (111) is formed on the side wall of the guide column (11), and the distance between the guide inclined surface (111) and the central axis of the guide column (11) decreases along the arrangement direction of the key lining (1) and the switch support (2).
5. The temperature controlled switch of claim 1, wherein: The spring groove (12) is opened on the surface of the key lining (1) close to the switch support (2), and the end of the spring (3) is inserted into the spring groove (12).
6. The temperature controlled switch of claim 1, wherein: The knob (4) and the PCB board (5) are further included, the PCB board (5) is arranged on the switch support (2), and the knob (4) is rotationally arranged on the PCB board (5) and electrically connected with the PCB board (5).
7. A thermostatic switch according to claim 6, characterised in that: The knob (4) includes the shell (41), the connecting piece (42) and the rotating piece (43), the connecting piece (42) is arranged on the shell (41), the rotating piece (43) is arranged on the connecting piece (42), and the stop structure (7) is arranged between the shell (41) and the connecting piece (42) and between the connecting piece (42) and the rotating piece (43).
8. The temperature controlled switch of claim 7, wherein: The stop structure (7) includes the stop groove (71) opened on the shell (41) and the rotating piece (43) and the stop block (72) arranged on the connecting piece (42), and the stop groove (71) is used for the stop block (72) to be inserted.
9. The temperature controlled switch of claim 7, wherein: The buckle (421) is arranged on the connecting piece (42), the clamping groove (431) for the buckle (421) to be inserted is opened on the rotating piece (43), and the connecting piece (42) and the rotating piece (43) are buckled and connected through the buckle (421) and the clamping groove (431).
10. The temperature controlled switch of claim 9, wherein: The guide inclined surface (432) is formed on the side wall of the rotating piece (43), and the distance between the guide inclined surface (432) and the rotating axis of the rotating piece (43) increases along the direction in which the buckle (421) slides into the clamping groove (431).