Plunger type microswitch

Abstract

The utility model relates to a plunger type microswitch, and belongs to the technical field of microswitches. The microswitch comprises a microswitch body and a touch mechanism, and a switch button is arranged on the microswitch body. The touch mechanism comprises a support fixed to the microswitch body and a fixing piece fixed to the support, the fixing piece is of a hollow structure, a plunger button and an abutting piece are arranged in an inner cavity of the fixing piece, and the abutting piece is arranged at the bottom of the plunger button and used for abutting against the switch key. An elastic piece used for buffering is arranged between the abutting piece and the plunger button. When the abutting piece abuts against the switch button to achieve opening or closing of the switch button, the elastic piece buffers the whole structure to a certain degree, damage to the switch button caused by acting force directly transmitted to the switch button is avoided, and the service life of the switch button is prevented from being affected.

Description

Technical Field

[0001] The present application relates to the technical field of micro switches, and in particular to a plunger type micro switch. Background Art

[0002] A micro switch is a contact mechanism with a small contact spacing and a snap-action mechanism. It uses a specified stroke and a specified force to perform a switch action. Because the contact spacing of the switch is relatively small, it is called a micro switch, also known as a sensitive switch. The external mechanical force acts on the action reed through the transmission element. When the action reed moves to the critical point, an instantaneous action occurs, causing the moving contact at the end of the action reed to quickly connect or disconnect with the fixed contact.

[0003] There are many types of micro switches. Micro switches with external brackets and plunger buttons are not widely used in the market, and most of them have plunger buttons directly acting on the micro switches. There is no buffer structure between the plunger button and the switch button of the micro switch, so that the switch button of the micro switch directly receives the force from the plunger button, which makes the switch button of the micro switch easy to be damaged, resulting in a shorter life of the switch button. Especially when used in special occasions such as solar panel production equipment under high temperature environment, higher requirements are placed on the reliability and service life of the micro switch. Summary of the invention

[0004] The embodiment of the present application provides a plunger type micro switch to solve the problem in the related art that the plunger button of the plunger type micro switch is in direct contact with the switch key of the micro switch, which affects the service life of the switch key of the micro switch.

[0005] The present application embodiment provides a plunger type micro switch, comprising:

[0006] A micro switch body, wherein a switch button is arranged on the micro switch body;

[0007] The trigger mechanism includes a bracket fixed to the micro switch body and a fixing member fixed to the bracket. The fixing member is a hollow structure, and a plunger button and a resisting member arranged at the bottom of the plunger button for resisting the switch button are arranged in its inner cavity. An elastic member for buffering is arranged between the resisting member and the plunger button.

[0008] In some embodiments, the fixing member is a threaded tube, one end of which is riveted to the bracket.

[0009] In some embodiments, the elastic member is a spring, one end of which is fixed to the plunger button and the other end of which is fixed to the abutment member.

[0010] In some embodiments, the resisting member includes a resisting segment fixed to the spring, and a vertical segment perpendicular to the resisting segment, wherein the vertical segment extends into the inner coil of the spring.

[0011] In some embodiments, the bracket is "L"-shaped, comprising a first fixed section fixed to the side wall of the microswitch body, and a second fixed section perpendicular to the first fixed section and fixed to the top of the microswitch body, the second fixed section comprising a top surface section, the top surface section being arranged at intervals along the height direction at the top of the microswitch body, the top surface section being provided with an opening for installing the fixing member.

[0012] In some embodiments, the bracket and the micro switch body are riveted or fixedly connected by screws.

[0013] In some embodiments, a limiting surface is protruded from the inner wall of the threaded tube, and a step surface matching the limiting surface is provided at one end of the plunger button.

[0014] In some embodiments, the side wall of the threaded tube is provided with a turning surface.

[0015] In some embodiments, a nut is provided on the outer wall of the threaded tube.

[0016] In some embodiments, the plunger button is made of stainless steel, and arc chamfers are provided on the end surface edges of the plunger button and the abutment member.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] An embodiment of the present application provides a plunger-type micro switch, comprising a micro switch body and a trigger mechanism, wherein the micro switch body is provided with a switch button; the trigger mechanism comprises a bracket fixed to the micro switch body, and a fixing member fixed to the bracket, wherein the fixing member is a hollow structure, and a plunger button and a resisting member arranged at the bottom of the plunger button for resisting the switch button are arranged in its inner cavity, and an elastic member for buffering is arranged between the resisting member and the plunger button.

[0019] In actual use, the plunger button of a conventional plunger-type microswitch is in direct contact with the switch button of the microswitch, and the plunger button abuts against the switch button of the microswitch to realize the opening or closing of the switch button. However, in the long run, since the plunger button and the switch button directly abut with each other and there is no buffer mechanism in between, the service life of the switch button of the microswitch will be affected. However, the plunger-type microswitch of the present application includes a microswitch body and a touch mechanism, and the touch mechanism includes a bracket fixed to the microswitch body, and a fixing member fixed to the bracket, and the fixing member is of a hollow structure, and its inner cavity is provided with a plunger button and a resisting member provided at the bottom of the plunger button for abutting against the switch button, and a buffering member is provided between the resisting member and the plunger button. In actual use, since the elastic member is arranged between the plunger button and the resistance member, when the plunger button is pressed, the plunger button does not directly resist the switch button of the micro switch, but uses the resistance member to resist the switch button, and an elastic member for buffering is arranged between the resistance member and the plunger button. When the resistance member resists the switch button to realize the opening or closing of the switch button, the elastic member brings a certain buffer to the overall structure, avoiding the force directly transmitted to the switch button to cause damage to the switch button, so as to avoid affecting the service life of the switch button. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 An exploded diagram of the structure provided in the embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the structure after assembly;

[0023] Figure 3 for Figure 1 Schematic diagram of the fixing parts;

[0024] Figure 4 for Figure 3 Schematic diagram from another perspective;

[0025] Figure 5 for Figure 1 Schematic diagram of the center plunger button.

[0026] Reference numerals:

[0027] 1. Micro switch body; 2. Trigger mechanism; 3. Nut; 4. Rivet; 11. Switch button; 21. Bracket; 22. Fixing piece; 23. Plunger button; 24. Resistance piece; 25. Elastic piece; 211. First fixing section; 212. Second fixing section; 221. Limiting surface; 222. Turning surface; 231. Step surface; 241. Resistance section; 242. Vertical section; 2121. Top section. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The embodiment of the present application provides a plunger type micro switch, which can solve the problem in the related art that the plunger button of the plunger type micro switch is in direct contact with the switch key of the micro switch, thereby affecting the service life of the switch key of the micro switch.

[0030] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a plunger type micro switch, including a micro switch body 1 and a trigger mechanism 2, wherein a switch button 11 is arranged on the micro switch body 1; the trigger mechanism 2 includes a bracket 21 fixed to the micro switch body 1, and a fixing member 22 fixed to the bracket 21, wherein the fixing member 22 is a hollow structure, wherein a plunger button 23 and a resisting member 24 arranged at the bottom of the plunger button 23 for resisting the switch button 11 are arranged in its inner cavity, and an elastic member 25 for buffering is arranged between the resisting member 24 and the plunger button 23.

[0031] In actual use, the plunger button 23 of a conventional plunger-type microswitch is in direct contact with the switch button 11 of the microswitch, and the plunger button 23 abuts against the switch button 11 of the microswitch to realize the opening or closing of the switch button 11. However, in the long run, since the plunger button 23 and the switch button 11 directly abut, and there is no buffer mechanism in between, the service life of the switch button 11 of the microswitch will be affected. However, the plunger-type microswitch of the present application includes a microswitch body 1 and a touch mechanism 2. The touch mechanism 2 includes a bracket 21 fixed to the microswitch body 1, and a fixing member 22 fixed to the bracket 21. The fixing member 22 is a hollow structure, and its inner cavity is provided with a plunger button 23 and a resisting member 24 provided at the bottom of the plunger button 23 for resisting the switch button 11. An elastic member 25 for buffering is provided between the resisting member 24 and the plunger button 23. In actual use, the plunger button 23 of the present application is in direct contact with the switch button 11, and the switch button 11 is directly abutted. In actual use, the plunger button 23 of the present application is in direct contact with the switch button 11, and the switch button 11 is directly abutted against the switch button 1 ... In actual use, since an elastic member 25 is provided between the plunger button 23 and the resistance member 24, when the plunger button 23 is pressed, the plunger button 23 does not directly resist the switch button 11 of the micro switch, but uses the resistance member 24 to resist the switch button 11, and an elastic member 25 for buffering is provided between the resistance member 24 and the plunger button 23. When the resistance member 24 resists the switch button 11 to realize the opening or closing of the switch button 11, the elastic member 25 brings a certain buffer to the overall structure, avoiding the force directly transmitted to the switch button 11 to cause damage to the switch button 11, so as to avoid affecting the service life of the switch button 11.

[0032] In addition, by providing an elastic member 25 for buffering between the abutment 24 and the plunger button 23, when the abutment 24 abuts against the switch button 11 to turn the switch button 11 on or off, the provision of the elastic member 25 can not only provide a certain buffering effect to the overall structure and protect the switch, but also increase the overtravel of the switch. In practical applications, the micro switch may not be placed in a completely horizontal state in the application scenario. For example, when the micro switch is used under the tray of the equipment, due to the flatness error around the tray, if there is no overtravel to ensure reliable operation, the micro switch may have poor conduction or fail to achieve the opening action. However, since the elastic member 25 is provided between the abutment 24 and the plunger button 23, the micro switch has the reliability of overtravel, avoiding unfavorable situations such as failure to smoothly turn on the switch.

[0033] In some optional embodiments, such as Figure 1 and Figure 2As shown, the fixing member 22 is a threaded tube, one end of which is riveted to the bracket 21. The elastic member 25 is a spring, one end of which is fixed to the plunger button 23, and the other end is fixed to the abutment 24. The elastic member 25 is a spring, which has a low cost and can play a buffering role. When the plunger button 23 moves downward, driving the abutment 24 to abut the switch button 11 to realize the opening or closing of the switch button 11, the spring can buffer and prevent the force of the plunger button 23 from damaging the switch button 11, so as to avoid affecting the service life of the switch button 11.

[0034] In some optional embodiments, such as Figure 1 As shown, the resisting member 24 includes a resisting section 241 fixed to the spring, and a vertical section 242 perpendicular to the resisting section 241, and the vertical section 242 extends into the inner circle of the spring. The resisting member 24 is in a "T" shape, and its resisting section 241 can resist the switch button 11 to realize the opening or closing of the switch button 11, and the vertical section 242 extends into the inner circle of the spring, and the spring can be used to limit the resisting member 24 in the horizontal direction.

[0035] In some optional embodiments, the bracket 21 is riveted or fixedly connected to the micro switch body 1 by screws. Figure 1 and Figure 2 As shown, the micro switch body 1 and the bracket 21 are riveted on both sides. Compared with single-side riveting, this type of fixing method is more reliable and is convenient for improving the service life of the overall structure.

[0036] In some optional embodiments, such as Figure 1 and Figure 2 As shown, the bracket 21 is "L"-shaped, and includes a first fixing section 211 fixed to the side wall of the micro switch body 1, and a second fixing section 212 perpendicular to the first fixing section 211 and fixed to the top of the micro switch body 1. The second fixing section 212 includes a top surface section 2121, which is arranged at intervals on the top of the micro switch body 1 along the height direction, and the top surface section 2121 is provided with an opening for installing the fixing member 22. In actual use, the first fixing section 211 and the second fixing section 212 are both semi-enclosed structures, which semi-enclose and fix the microswitch body 1. The first fixing section 211 and the second fixing section 212 are both fixed to the microswitch body 1 by rivets 4. The second fixing section 212 includes a top surface section 2121, and the top surface section 2121 is arranged at intervals along the height direction at the top of the microswitch body 1, that is, there is a certain space between the top surface section 2121 and the top of the microswitch body 1, providing a certain installation space for the trigger mechanism 2. An opening for installing the fixing member 22 is opened on the top surface section 2121, and the opening is opened at the top of the switch button 11, and the fixing member 22 is fixed through the opening. In actual use, the resistance member 24 is arranged at the bottom of the top surface section 2121, located at the top of the switch button 11, so as to facilitate resistance to the switch button 11.

[0037] In some optional embodiments, such as Figures 3 to 5 As shown, a limited surface 221 is protruded from the inner wall of the threaded tube, and a step surface 231 matching the limit surface 221 is provided at one end of the plunger button 23. A limited surface 221 is protruded from the inner wall of the threaded tube, and a step surface 231 matching the limit surface 221 is provided at one end of the plunger button 23. When the plunger button 23 is installed in the hollow threaded tube, the step surface 231 of the plunger button 23 contacts the limit surface 221 of the inner wall of the threaded tube, and the threaded tube limits the plunger button 23 to prevent the plunger button 23 from falling out of the threaded tube.

[0038] In some optional embodiments, the plunger button 23 is made of stainless steel, which can ensure the service life and durability of the plunger button 23. The plunger button 23 and the abutment 24 are both provided with arc chamfers at their end edges. The arc chamfers can prevent the plunger button 23 and the abutment 24 from scratching other structures when they are in action. In some use cases, the height of the plunger button 23 can be made into a variety of specifications with different heights according to actual requirements to meet the use in different situations.

[0039] In actual use, the shell of the micro switch body 1 is made of high-temperature resistant engineering plastic material, which is suitable for use in high-temperature environments, thereby increasing the application range of the micro switch.

[0040] In some embodiments, Figure 2 and Figure 3 As shown, the side wall of the threaded tube is provided with a turning surface 222, which is convenient for installation and fastening, saving time and effort. A nut 3 is provided on the outer wall of the threaded tube, which is convenient for installation and docking with an external mechanism.

[0041] In summary, the plunger type micro switch of the present application includes a micro switch body 1 and a trigger mechanism 2, and a switch button 11 is arranged on the micro switch body 1; the trigger mechanism 2 includes a bracket 21 fixed to the micro switch body 1, and a fixing member 22 fixed to the bracket 21, the fixing member 22 is a hollow structure, and a plunger button 23 and a resisting member 24 arranged at the bottom of the plunger button 23 for resisting the switch button 11 are arranged in its inner cavity, and an elastic member 25 for buffering is arranged between the resisting member 24 and the plunger button 23.

[0042] In actual use, the plunger button 23 of a conventional plunger-type microswitch is in direct contact with the switch button 11 of the microswitch, and the plunger button 23 abuts against the switch button 11 of the microswitch to realize the opening or closing of the switch button 11. However, in the long run, since the plunger button 23 and the switch button 11 directly abut, and there is no buffer mechanism in between, the service life of the switch button 11 of the microswitch will be affected. However, the plunger-type microswitch of the present application includes a microswitch body 1 and a touch mechanism 2. The touch mechanism 2 includes a bracket 21 fixed to the microswitch body 1, and a fixing member 22 fixed to the bracket 21. The fixing member 22 is a hollow structure, and its inner cavity is provided with a plunger button 23 and a resisting member 24 provided at the bottom of the plunger button 23 for resisting the switch button 11. An elastic member 25 for buffering is provided between the resisting member 24 and the plunger button 23. In actual use, the plunger button 23 of the present application is in direct contact with the switch button 11, and the switch button 11 is directly abutted. In actual use, the plunger button 23 of the present application is in direct contact with the switch button 11, and the switch button 11 is directly abutted against the switch button 1 ... In actual use, since an elastic member 25 is provided between the plunger button 23 and the resistance member 24, when the plunger button 23 is pressed, the plunger button 23 does not directly resist the switch button 11 of the micro switch, but uses the resistance member 24 to resist the switch button 11, and an elastic member 25 for buffering is provided between the resistance member 24 and the plunger button 23. When the resistance member 24 resists the switch button 11 to realize the opening or closing of the switch button 11, the elastic member 25 brings a certain buffer to the overall structure, avoiding the force directly transmitted to the switch button 11 to cause damage to the switch button 11, so as to avoid affecting the service life of the switch button 11.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0044] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0045] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A plunger type micro switch, characterized in that: include: A micro switch body (1), wherein a switch button (11) is provided on the micro switch body (1); A trigger mechanism (2), the trigger mechanism (2) comprising a bracket (21) fixed to the micro switch body (1), and a fixing member (22) fixed to the bracket (21), the fixing member (22) being a hollow structure, the inner cavity of which is provided with a plunger button (23) and a resisting member (24) disposed at the bottom of the plunger button (23) for resisting the switch button (11), and an elastic member (25) for buffering is disposed between the resisting member (24) and the plunger button (23).

2. A plunger type micro switch as claimed in claim 1, characterized in that: The fixing member (22) is a threaded tube, one end of which is riveted to the bracket (21).

3. A plunger type micro switch according to claim 1, characterized in that: The elastic member (25) is a spring, one end of which is fixed to the plunger button (23) and the other end of which is fixed to the resisting member (24).

4. A plunger type micro switch as claimed in claim 3, characterized in that: The resisting member (24) comprises a resisting section (241) fixed to the spring, and a vertical section (242) perpendicular to the resisting section (241), wherein the vertical section (242) extends into the inner ring of the spring.

5. A plunger type micro switch as claimed in claim 1, characterized in that: The bracket (21) is in an "L" shape, and comprises a first fixing section (211) fixed to the side wall of the micro switch body (1), and a second fixing section (212) perpendicular to the first fixing section (211) and fixed to the top of the micro switch body (1), the second fixing section (212) comprising a top surface section (2121), the top surface section (2121) being arranged at intervals along the height direction at the top of the micro switch body (1), and the top surface section (2121) is provided with an opening for mounting the fixing member (22).

6. A plunger type micro switch as claimed in claim 1, characterized in that: The bracket (21) and the micro switch body (1) are riveted or fixedly connected by screws.

7. A plunger type micro switch as claimed in claim 2, characterized in that: A limiting surface (221) is protruding from the inner wall of the threaded tube, and a step surface (231) matching the limiting surface (221) is provided at one end of the plunger button (23).

8. A plunger type micro switch as claimed in claim 2, characterized in that: The side wall of the threaded tube is provided with a turning surface (222).

9. A plunger type micro switch as claimed in claim 2, characterized in that: A nut (3) is arranged on the outer wall of the threaded tube.

10. A plunger type micro switch as claimed in claim 1, characterized in that: The plunger button (23) is made of stainless steel, and arc chamfers are arranged at the end surface edges of the plunger button (23) and the abutment member (24).

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