A push button switch

Abstract

The utility model provides a push button switch, including a base, an upper contact, a lower contact, a conductive sheet, a conductive spring, a guide column and a button. The base is provided with an installation cavity with upper and lower openings, a mounting portion is provided in the middle of the installation cavity, a positioning frame is provided in the installation cavity below the mounting portion, the conductive sheet and the lower contact are both mounted on the positioning frame and insulated from each other; the guide column can be movably mounted on the mounting portion, the upper contact is mounted on the lower end of the guide column and is located above the lower contact, the upper and lower ends of the conductive spring are respectively connected to the conductive sheet, and the upper contact and the lower contact are kept at a distance under the action of the conductive spring in normal state, the button can be movably mounted on the upper part of the installation cavity, and pressing the button drives the guide column to move downward to make the upper contact contact with the lower contact. The push button switch in the utility model has a reasonable structure, is easy to assemble, and has stable product performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric switches, in particular to a push button switch. Background Art

[0002] Most switches such as horn switches and storage box switches used on motorcycles adopt push switches, which realize the corresponding switch functions by controlling the contact and separation of the moving and static contacts in the push button switch. Patent document CN2884491Y discloses a push button switch for motorcycles. In the solution of the patent, metal pins and static contacts are used as the input and output connection circuits of the switch, so that the circuit is connected through the metal pins, conductive sheets, moving contacts, and static contacts. The problem with the push button switch in the patent document is that motorcycles are mainly used as a means of transportation for outdoor driving, and the core components such as the conductive sheet, moving contact, static contact and metal pin in the push button switch are all exposed, lacking necessary protective measures, which will affect the stability of the performance of the push button switch to a certain extent. Utility Model Content

[0003] To solve this problem, the utility model provides a push button switch with stable performance.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a push button switch, comprising a base, an upper contact, a lower contact, a conductive sheet, a conductive spring, a guide column and a button. The base is provided with an installation cavity with upper and lower openings, a mounting portion is provided in the middle of the installation cavity, a positioning frame is arranged in the installation cavity below the mounting portion, the conductive sheet and the lower contact are both mounted on the positioning frame and are insulated from each other; the guide column can be movably mounted on the mounting portion up and down, the upper contact is mounted on the lower end of the guide column and is located above the lower contact, the upper contacts at the upper and lower ends of the conductive spring are respectively connected to the conductive sheet, under the action of the conductive spring in normal state, the upper contact and the lower contact keep a distance, the button can be movably mounted on the upper part of the installation cavity, and pressing the button drives the guide column to move downward to make the upper contact contact with the lower contact.

[0006] In some embodiments, the positioning frame is installed through the lower opening of the installation cavity and connected to the base through a snap-fit ​​structure. A limiting cover plate is installed at the bottom of the installation cavity, and the limiting cover plate presses the positioning frame tightly in the installation cavity.

[0007] In some embodiments, the buckle structure includes a matching elastic buckle and a buckle hole, one of which is arranged on the positioning frame, and the other is arranged on the mounting portion.

[0008] In some embodiments, the mounting portion is provided with a mounting hole that passes through from top to bottom, the mounting hole is a stepped hole that is thicker at the bottom and thinner at the top, the guide column is a stepped column that is thicker at the bottom and thinner at the top, the guide column is inserted into the mounting hole from bottom to top, a positioning groove is provided at the lower end of the guide column, and the upper contact is embedded in the positioning groove.

[0009] In some embodiments, the conductive spring is a helical tower spring, the conductive sheet includes an annular portion surrounding the lower contact, the upper end of the helical tower spring is sleeved on the upper contact, the outer periphery of the upper contact is provided with an annular abutting portion abutting against the conductive spring, and the lower end of the helical tower spring abuts against the annular portion.

[0010] In some embodiments, the conductive sheet and the lower contact have power connection ends extending to the lower side of the positioning frame, and the side of the installation cavity is provided with a threading hole for the wire to pass through.

[0011] In some embodiments, a limit cover plate is installed at the bottom of the installation cavity, a stop step is provided in the installation cavity, and the limit cover plate presses the positioning frame against the stop step and covers the lower opening of the installation cavity.

[0012] In some embodiments, a mounting bracket extending outward is provided on the outside of the base.

[0013] In some embodiments, the lower end of the button extends into the installation cavity from the upper end opening of the installation cavity, and a limiting hole is provided on the button. A clamping platform is provided on the side wall of the installation cavity, and the clamping platform cooperates with the limiting hole to limit the button and install it on the base.

[0014] In some embodiments, a fool-proof structure is provided between the button and the mounting cavity.

[0015] The utility model has the positive effects:

[0016] (1) The push button switch structure of the utility model is designed so that the core conducting components are all arranged in the mounting cavity of the base, which plays a good protective role, thereby ensuring the stable performance of the product and having good practicality and popularization. Specifically, when the push button switch is in use, pressing the button drives the guide post to move downward so that the upper contact contacts the lower contact, thereby forming a path between the conductive sheet and the lower contact through the conductive spring and the upper contact to control the conduction of the circuit. When the pressure applied to the button is removed, the upper contact, the guide post and the button move upward and reset under the elastic force of the conductive spring, thereby forming a clear break between the upper contact and the lower contact to control the circuit to be disconnected.

[0017] (2) In the push button switch of the utility model, the positioning frame is installed through the lower end opening of the installation cavity and is connected to the base through a snap-fit ​​structure. A limit cover plate is installed at the bottom of the installation cavity. The limit cover plate presses the positioning frame tightly in the installation cavity. During assembly, the positioning frame can be first pressed into the installation cavity through the lower end opening of the installation cavity, and the positioning frame can be quickly and preliminarily positioned in the installation cavity of the base through the snap-fit ​​structure and the conductive spring can be positioned. Then, the positioning frame can be further pressed and positioned by installing the limit cover plate, thereby ensuring that the positioning frame is reliably fixed in the installation cavity, thereby ensuring the reliability of the installation of the conductive sheet and the lower contact. This facilitates assembly. At the same time, the limit cover plate can shield and protect the wiring parts of the lower contact and the conductive sheet, which is beneficial to ensuring the overall performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural diagram of the push button switch in the utility model;

[0020] Figure 2 for Figure 1 A top view of the push button switch shown;

[0021] Figure 3 For along Figure 2 Sectional view cut along line AA;

[0022] Figure 4 This is a structural diagram of the positioning frame in the utility model;

[0023] Figure 5 It is an exploded view of the push button switch in the utility model.

[0024] Markings shown in the attached drawings: 1-base; 10-threading hole; 11-installation cavity; 110-limiting hole; 12-installation portion; 121-clamping hole; 122-installation hole; 13-installation bracket; 14-anti-mistake slot; 2-upper contact; 20-annular abutment portion; 3-lower contact; 4-conductive sheet; 41-annular portion; 5-conductive spring; 6-guide column; 61-positioning groove; 7-button; 71-clamping table; 72-anti-mistake insertion table; 8-positioning frame; 81-elastic buckle; 9-limiting cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] A push button switch in this embodiment has a structure as shown in FIG. Figures 1 to 5As shown, it includes a base 1, an upper contact 2, a lower contact 3, a conductive sheet 4, a conductive spring 5, a guide column 6 and a button 7. The base 1 is provided with an installation cavity 11 which is open at the top and the bottom. A mounting portion 12 is provided in the middle of the installation cavity 11. A positioning frame 8 is provided in the installation cavity 11 below the mounting portion 12. The conductive sheet 4 and the lower contact 3 are both mounted on the positioning frame 8, and the conductive sheet 4 and the lower contact 3 are insulated; the guide column 6 can be movably mounted on the mounting portion 12 up and down, the upper contact 2 is mounted on the lower end of the guide column 6 and is above the lower contact 3, the conductive spring 5 is preferably made of a metal material with good conductive properties, the upper and lower ends of the conductive spring 5 are respectively connected to the upper contact 2 and the conductive sheet 4, and under normal conditions, under the action of the conductive spring 5 The upper contact 2 and the lower contact 3 maintain a distance, and the button 7 can be movably installed on the upper part of the installation cavity 11. Pressing the button 7 drives the guide column 6 to move downward to make the upper contact 2 contact the lower contact 3, thereby forming a passage between the conductive sheet 4 and the lower contact 3 through the conductive spring 5 and the upper contact 2 to control the circuit conduction. When the pressure applied to the button 7 is removed, the upper contact 2, the guide column 6 and the button 7 move upward and reset under the elastic force of the conductive spring 5, thereby forming an obvious fracture between the upper contact 2 and the lower contact 3 to control the circuit to be broken. The structure in this embodiment is optimized and designed, and the core conductive elements are all arranged in the installation cavity of the base, which plays a good protective role, thereby ensuring stable performance and good practicality.

[0029] For further information, see Figure 3 As shown, the positioning frame 8 is installed through the lower end opening of the installation cavity 11 and is connected to the base 1 through a snap-fit ​​structure. A limiting cover plate 9 is installed at the bottom of the installation cavity 11. The limiting cover plate 9 presses the positioning frame 8 tightly into the installation cavity 11. During assembly, the positioning frame 8 can be first pressed into the installation cavity 11 through the lower end opening of the installation cavity 11, and the positioning frame 8 can be quickly and preliminarily positioned in the installation cavity 11 of the base 1 through the snap-fit ​​structure to position the conductive spring 5. Then, the positioning frame 8 is further pressed and positioned by installing the limiting cover plate 9, thereby ensuring that the positioning frame 8 is reliably fixed in the installation cavity 11, and then ensuring the reliability of the installation of the conductive sheet 4 and the lower contact 3. This facilitates assembly. At the same time, the limiting cover plate 9 can shield and protect the wiring parts of the lower contact 3 and the conductive sheet 4, which is beneficial to ensuring the overall performance of the product.

[0030] like Figure 3 and Figure 4As shown, the buckle structure includes a matching elastic buckle 81 and a buckle hole 121, the elastic buckle 81 is arranged on the positioning frame 8, and the buckle hole 121 is arranged on the mounting portion 12, and the positioning frame 8 is positioned by the cooperation between the elastic buckle 81 and the buckle hole 121; as a variation, in actual operation, the positions of the elastic buckle 81 and the buckle hole 121 can be interchanged, that is, the elastic buckle 81 is arranged on the mounting portion 12, and the buckle hole 121 is correspondingly arranged on the positioning frame 8.

[0031] In some embodiments, the mounting portion 12 is provided with a mounting hole 122 that passes through from top to bottom. The mounting hole 122 is a stepped hole that is thicker at the bottom and thinner at the top. The guide column 6 is a stepped column that is thicker at the bottom and thinner at the top. The guide column 6 is inserted into the mounting hole 122 from bottom to top. A positioning groove 61 is provided at the lower end of the guide column 6. The upper contact 2 is embedded in the positioning groove 61, thereby facilitating the assembly between the upper contact 2 and the guide column 6.

[0032] In some embodiments, the conductive spring 5 is a helical tower spring, the conductive sheet 4 includes an annular portion 41 surrounding the lower contact 3, the upper end of the helical tower spring is sleeved on the upper contact 2, and the outer periphery of the upper contact 2 is provided with an annular abutting portion 20 abutting against the conductive spring 5, and the lower end of the helical tower spring abuts against the annular portion 41. The conductive spring 5 abuts against the annular abutting portion 20 to provide an upward elastic force for the upper contact 2, and good conductive performance is achieved through the contact between the conductive spring 5 and the annular abutting portion 20.

[0033] In some embodiments, Figure 3 As shown, the conductive sheet 4 and the lower contact 3 have a power connection terminal extending to the lower side of the positioning frame 8, and the side of the installation cavity 11 is provided with a threading hole 10 for the wire to pass through, and the end of the wire extends into the installation cavity 11 and is connected to the power connection terminal; further, in order to improve the insulation performance, a barrier rib can be set between the two power connection terminals to increase the creepage distance.

[0034] In some embodiments, a stop step is provided in the installation cavity 11, and the limit cover plate 9 presses the positioning frame 8 against the stop step and covers the lower end opening of the installation cavity 11; the limit cover plate 9 presses the positioning frame 8 against the stop step, and the installation function of the buckle structure can effectively enhance the reliability of the installation of the positioning frame 8. More specifically, the limit cover plate 9 can be fixedly connected to the base 1 by a snap connection, or fixedly connected to the base 1 by screws.

[0035] In order to facilitate the installation of the push button switch, an outwardly extending mounting bracket 13 is provided outside the base 1. When installing the push button switch, the mounting bracket 13 is fixed to a corresponding position on the vehicle.

[0036] In this embodiment, the lower end of the button 7 extends into the installation cavity 11 from the upper end opening of the installation cavity 11. When the button 7 is pressed downward, pressure is applied to the upper end of the guide column 6 to move the guide column 6 downward. A limiting hole 71 is provided on the button 7, and a clamping platform 110 is provided on the side wall of the installation cavity 11. The limiting hole 71 cooperates with the clamping platform 110 to limit the button 7 on the base 1. When the button 7 moves up and down, the clamping platform 110 moves relatively in the limiting hole 71, and the clamping platform 110 and the corresponding end edge of the limiting hole 71 are abutted to play a stopping and limiting role.

[0037] In some embodiments, Figure 5 As shown, an anti-mistake structure is provided between the button 7 and the installation cavity 11, and the anti-mistake structure is provided to prevent the button 7 from being installed in the wrong direction; illustratively, the anti-mistake structure includes an anti-mistake slot 14 provided on the inner wall of the installation cavity 11 and an anti-mistake plug-in platform 72 provided on the side wall of the button 7. When the button 7 is installed in a predetermined direction, the anti-mistake plug-in platform 72 forms a plug-in fit with the anti-mistake slot 14. When the anti-mistake plug-in platform and the anti-mistake slot are misaligned, the button 7 cannot be installed.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A push button switch, comprising a base (1), an upper contact (2), a lower contact (3), a conductive sheet (4), a conductive spring (5), a guide column (6) and a button (7), wherein the base (1) is provided with a mounting cavity (11) open at the top and bottom, and a mounting portion (12) is provided in the middle of the mounting cavity (11), characterized in that: A positioning frame (8) is installed in the installation cavity (11) below the installation part (12); the conductive sheet (4) and the lower contact (3) are both installed on the positioning frame (8) and are insulated from each other; the guide column (6) is installed on the installation part (12) movably up and down; the upper contact (2) is installed at the lower end of the guide column (6) and is located above the lower contact (3); the upper and lower ends of the conductive spring (5) are respectively connected to the upper contact (2) and the conductive sheet (4); in normal state, the upper contact (2) and the lower contact (3) are kept at a distance under the action of the conductive spring (5); the button (7) is movably installed on the upper part of the installation cavity (11); pressing the button (7) drives the guide column (6) to move downward so that the upper contact (2) and the lower contact (3) are in contact.

2. The push button switch according to claim 1, characterized in that: The positioning frame (8) is installed through the lower opening of the installation cavity (11) and is connected to the base (1) through a snap-fit ​​structure. A limiting cover plate (9) is installed at the bottom of the installation cavity (11). The limiting cover plate (9) presses the positioning frame (8) tightly into the installation cavity (11).

3. The push button switch according to claim 2, characterized in that: The buckle structure comprises a matching elastic buckle (81) and a buckle hole (121); one of the elastic buckle (81) and the buckle hole (121) is arranged on the positioning frame (8), and the other is arranged on the mounting portion (12).

4. The push button switch according to claim 1, characterized in that: The mounting portion (12) is provided with a mounting hole (122) which passes through from top to bottom. The mounting hole (122) is a stepped hole which is thicker at the bottom and thinner at the top. The guide column (6) is a stepped column which is thicker at the bottom and thinner at the top. The guide column (6) is inserted into the mounting hole (122) from bottom to top. A positioning groove (61) is provided at the lower end of the guide column (6), and the upper contact (2) is embedded in the positioning groove (61).

5. The push button switch according to claim 1, characterized in that: The conductive spring (5) is a helical tower spring, the conductive sheet (4) comprises an annular portion (41) surrounding the lower contact (3), the upper end of the helical tower spring is sleeved on the upper contact (2), the outer periphery of the upper contact (2) is provided with an annular abutting portion (20) abutting against the conductive spring (5), and the lower end of the helical tower spring abuts against the annular portion (41).

6. The push button switch according to claim 1, characterized in that: The conductive sheet (4) and the lower contact (3) have power connection ends extending to the lower side of the positioning frame (8), and a threading hole (10) for a wire to pass through is provided on the side of the installation cavity (11).

7. The push button switch according to claim 2, characterized in that: A stop step is provided in the installation cavity (11), and the limiting cover plate (9) presses the positioning frame (8) against the stop step and covers the lower opening of the installation cavity (11).

8. The push button switch according to claim 1, characterized in that: An outwardly extending mounting bracket (13) is provided on the outside of the base (1).

9. The push button switch according to claim 1, characterized in that: The lower end of the button (7) extends into the installation cavity (11) from the upper end opening of the installation cavity (11), and a limiting hole (71) is provided on the button (7). A clamping platform (110) is provided on the side wall of the installation cavity (11), and the limiting hole (71) cooperates with the clamping platform (110) to limit the button (7) and install it on the base (1).

10. The push button switch according to claim 9, characterized in that: An anti-fool structure is provided between the button (7) and the installation cavity (11).

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