Novel button structure

Abstract

The utility model discloses a novel button structure, which comprises a shell, a button arranged on the shell and provided with a pressing rod, a circuit board arranged in the shell, a microswitch arranged on the circuit board, a single-arm pressing block arranged in the shell and a springback piece positioned below the single-arm pressing block, the single-arm pressing block comprises a rotating part, a springback contact part, a pressing contact part and a contact track part which are fixed or integrally formed, a fixed shaft is arranged on the shell, the rotating part is in running fit with the fixed shaft, the pressing contact part can be in contact or separated fit with the microswitch, and the springback piece can abut against the springback contact part and provide restoring force for the springback contact part. The pressing rod can abut against the contact rail part and promote the single-arm pressing block to act. The push button is reasonable in structural design, compact in structure, more accurate in part matching, more stable in performance and more stable and reliable in operation, and can be adapted to a product with a smaller internal space, and the pressing stroke of the push button is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive electronics, and more specifically, to a novel button structure. Background Art

[0002] The prior art CN204289194U discloses a button assembly for an automotive control panel, which includes a main base, a rotation control member, and a pressing control member coaxially arranged from outside to inside in sequence. A rotation cavity for the rotation control member to rotate is axially arranged in the middle of the main base, and a sliding cavity for the pressing control member to axially slide is axially arranged in the middle of the rotation control member. The rotation control member includes an upper rotation unit and a lower rotation unit, and the upper rotation unit and the lower rotation unit are circumferentially linked. A contact pin electrically connected to the control panel circuit board is arranged at the other end of the lower rotation unit relative to the upper rotation unit. The upper rotation unit includes a friction strip mounting base, a friction strip mounting cover, and a friction strip. A skirt is arranged on the periphery of the friction strip mounting cover and extends outward. The friction strip includes a clamping part and an operating part, and the lower end surface of the operating part abuts against the upper end surface of the main base.

[0003] The button assembly of the above technical solution realizes the pressing action by the axial sliding of the pressing control seat relative to the lower rotation unit. Therefore, a relatively large installation space is required inside the button assembly, and the existing button structure is not suitable for products with a small internal space. Summary of the Invention

[0004] The utility model overcomes the deficiencies of the prior art and provides a novel button structure with reasonable structural design, which can be adapted to products with a small internal space, reduces the pressing stroke of the button, has a compact structure, more precise part matching, more stable performance, and makes the operation more stable and reliable.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A novel button structure includes a housing, a button provided on the housing and having a pressing rod, a circuit board provided inside the housing, and a micro switch provided on the circuit board. It further includes a single-arm pressing block provided inside the housing and a return spring located below the single-arm pressing block. The single-arm pressing block includes a rotatable part, a return contact part, a pressing contact part, and a contact track part that are fixed or integrally formed. A fixed shaft is provided on the housing, and the rotatable part is rotatably matched with the fixed shaft. The pressing contact part can be in contact or separated from the micro switch. The return spring can abut against the return contact part and provide a restoring force for the return contact part. The pressing rod can abut against the contact track part and cause the single-arm pressing block to act, wherein the rotatable part and the pressing contact part are located on both sides of the contact track part, and the return contact part is arranged corresponding to the position of the contact track part.

[0007] Preferably, a return rubber body is arranged above the circuit board, and the return spring is configured as a protrusion integrally formed on the return rubber body.

[0008] Preferably, a guiding groove is provided at a position on the housing corresponding to the pressing contact portion, and the pressing contact portion is located in the guiding groove and moves up and down relative to the guiding groove.

[0009] Preferably, a limiting hook portion is provided below the single-arm pressing block on the housing, and a limiting strip is provided on the single-arm pressing block corresponding to the limiting hook portion.

[0010] Preferably, there are two resilient contact portions which are located on both sides of the contact track portion, and the number and positions of the resilient members correspond to those of the resilient contact portions.

[0011] Preferably, the limiting strip is fixed or integrally formed on the upper side portion of one of the resilient contact portions.

[0012] Preferably, a receiving opening is provided on the return rubber body, and the micro switch is located in the receiving opening.

[0013] Advantages of the utility model:

[0014] The utility model has a reasonable structural design, can be adapted to products with a relatively small internal space, reduces the pressing stroke of the button, has a compact structure, more precise component matching, more stable performance, and makes the operation more stable and reliable. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of a specific embodiment of the utility model;

[0016] Figure 2 is a sectional view of a specific embodiment of the utility model showing the abutment of the pressing rod and the single-arm pressing block;

[0017] Figure 3 is a schematic structural diagram of a specific embodiment of the utility model showing the housing;

[0018] Figure 4 is a schematic diagram of the internal structure of a specific embodiment of the utility model showing the housing;

[0019] Figure 5 is a schematic structural diagram of a specific embodiment of the utility model showing the single-arm pressing block;

[0020] Figure 6 is a schematic structural diagram of a specific embodiment of the utility model showing the return rubber body.

[0021] In the figure: 1. housing; 11. fixed shaft; 12. guiding groove; 13. limiting hook portion; 2. button; 21. pressing rod; 3. circuit board; 31. micro switch; 4. single-arm pressing block; 41. rotating portion; 42. resilient contact portion; 43. pressing contact portion; 44. contact track portion; 45. limiting strip; 5. resilient member; 6. return rubber body; 61. receiving opening. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] As shown Figure 1-6 in the figure, a new button structure includes a housing 1, a button 2 provided on the housing 1 and having a pressing rod 21, a circuit board 3 provided in the housing 1, and a microswitch 31 provided on the circuit board 3. It also includes a single-arm pressing block 4 provided in the housing 1 and a return spring 5 located below the single-arm pressing block 4. The single-arm pressing block 4 includes a rotatable part 41, a return contact part 42, a pressing contact part 43, and a contact track part 44 that are fixed or integrally formed. A fixed shaft 11 is provided on the housing 1, and the rotatable part 41 is rotatably matched with the fixed shaft 11. The pressing contact part 43 can be in contact or separated from the microswitch 31. The return spring 5 can abut against the return contact part 42 and provide a restoring force for the return contact part 42. The pressing rod 21 can abut against the contact track part 44 and cause the single-arm pressing block 4 to act. Among them, the rotatable part 41 and the pressing contact part 43 are located on both sides of the contact track part 44, and the return contact part 42 is arranged corresponding to the position of the contact track part 44; a return rubber body 6 is provided above the circuit board 3, and the return spring 5 is configured as a protrusion integrally formed on the return rubber body 6.

[0024] By adopting the above technical solution, in the present invention, the single-arm pressing block 4 is rotatably arranged on the fixed shaft 11 of the housing 1 through the rotatable part 41. When pressing, the button 2 drives the pressing rod 21 to move downward. The pressing rod 21 abuts against the contact track part 44 and applies a downward force to the single-arm pressing block 4. At this time, the pressing contact part 43 will move downward and abut against the microswitch 31, and the return contact part 42 presses downward on the return part, where the return part is specifically a protrusion integrally formed on the return rubber body 6. The rubber body has a certain resilience and can provide an upward restoring force for the return contact part 42. In this way, the main innovation point of the present invention lies in setting the structure of the single-arm pressing block 4, which can realize pressing and restoration, enabling the internal microswitch 31 to achieve on-off functions, being suitable for products with a smaller internal space, reducing the pressing stroke of the button 2, having a compact structure, more precise part matching, more stable performance, and making the operation more stable and reliable.

[0025] As an improved specific implementation mode, a guiding groove 12 is provided on the housing 1 corresponding to the position of the pressing contact part 43, and the pressing contact part 43 is located in the guiding groove 12 and moves up and down relative to the guiding groove 12.

[0026] By adopting the above technical solution, the provision of the guiding groove 12 can provide an accommodation space for the pressing contact portion 43 and a good guiding effect for the pressing contact portion 43. Preferably, a guiding strip or a guiding groove 12 structure can be provided between the guiding groove 12 and the pressing contact portion 43 to achieve better guiding performance.

[0027] As an improved specific embodiment, a limiting hook portion 13 is provided on the housing 1 below the single-arm pressing block 4, and a limiting strip 45 is provided on the single-arm pressing block 4 corresponding to the limiting hook portion 13; two resilient contact portions 42 are provided and located on both sides of the contact track portion 44, and the number and position of the resilient members 5 are correspondingly arranged with the resilient contact portions 42; the limiting strip 45 is fixed or integrally formed on the upper side portion of one of the resilient contact portions 42.

[0028] By adopting the above technical solution, the cooperative setting of the limiting hook portion 13 and the limiting strip 45 can provide a limiting effect for the downward movement of the single-arm pressing block 4, preventing damage to the product caused by excessive downward movement. And the provision of two resilient contact portions 42 can provide a better restoring force in cooperation with the resilient members 5. Setting the limiting strip 45 on the upper side portion of one of the resilient contact portions 42 is convenient for manufacturing and forming. Moreover, when the limiting strip 45 touches the limiting hook portion 13, since the resilient contact portion 42 is already in a contact state at this time, it can play a certain buffering role in the touch between the limiting strip 45 and the limiting hook portion 13, better protecting the product components.

[0029] As an improved specific embodiment, an accommodation opening 61 is provided on the return rubber body 6, and the micro switch 31 is located in the accommodation opening 61.

[0030] By adopting the above technical solution, the provision of the accommodation opening 61 facilitates the exposure of the micro switch 31 on the lower circuit board 3 and its contact with the pressing contact portion 43. Moreover, the accommodation opening 61 can also provide a good protection effect on the periphery of the micro switch 31, reducing the possibility of malfunction caused by dust entering due to micro movement.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A novel button structure, comprising a housing (1), a button (2) provided on the housing (1) and having a pressing rod (21), a circuit board (3) provided in the housing (1), and a micro switch (31) provided on the circuit board (3), characterized in that: The invention also comprises a single-arm pressing block (4) arranged in the shell (1) and a resilient member (5) located below the single-arm pressing block (4); the single-arm pressing block (4) comprises a fixed or integrally formed rotating portion (41), a resilient contact portion (42), a pressing contact portion (43) and a contact track portion (44); a fixed shaft (11) is provided on the shell (1); the rotating portion (41) and the fixed shaft (11) are rotatably matched; the pressing contact portion (43) can contact or separate from the micro switch (31); the resilient member (5) can contact the resilient contact portion (42) and provide a restoring force for the resilient contact portion (42); the pressing rod (21) can contact the contact track portion (44) and cause the single-arm pressing block (4) to move; wherein the rotating portion (41) and the pressing contact portion (43) are located on both sides of the contact track portion (44); and the resilient contact portion (42) is arranged corresponding to the position of the contact track portion (44).

2. A new button structure according to claim 1, characterized in that: A return rubber body (6) is arranged above the circuit board (3), and the resilient member (5) is configured as a protrusion integrally formed on the return rubber body (6).

3. A new button structure according to claim 1 or 2, characterized in that: A guide groove (12) is provided on the housing (1) at a position corresponding to the pressing contact portion (43); the pressing contact portion (43) is located in the guide groove (12) and moves up and down relative to the guide groove (12).

4. A new button structure according to claim 3, characterized in that: A limit hook portion (13) is provided on the housing (1) below the single-arm pressing block (4), and a limit strip (45) is provided on the single-arm pressing block (4) corresponding to the limit hook portion (13).

5. A new button structure according to claim 4, characterized in that: Two rebound contact portions (42) are provided and are located on both sides of the contact track portion (44), and the number and positions of the rebound members (5) are arranged corresponding to the rebound contact portions (42).

6. A new button structure according to claim 5, characterized in that: The limiting strip (45) is fixed or integrally formed on the upper side of one of the resilient contact portions (42).

7. A new button structure according to claim 2, characterized in that: The return rubber body (6) is provided with an accommodating opening (61), and the micro switch (31) is located in the accommodating opening (61).

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