Microswitch

Abstract

The utility model provides a microswitch. The microswitch comprises a housing, a button assembly, an elastic member and a pin assembly. The shell is provided with a first abutting end; the button assembly comprises a pressing rod and a button, the button abuts against the pressing rod, and the button assembly is located above the shell; the elastic piece is provided with a second abutting end, the elastic piece is connected with the button, the second abutting end is connected with the first abutting end, and the elastic piece is located in the shell; the pin assembly comprises a first pin and a second pin, the first pin is connected with the elastic piece, and when the button is in a downward pressing state, the second pin is connected with the second abutting end; the embodiment of the utility model provides a microswitch, which effectively solves the problems of unstable production quality and low assembly efficiency of products, improves the stability of the microswitch and prolongs the service life of the microswitch.

Description

Technical Field

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

[0002] A micro switch is a switch with a small contact spacing and a snap-action mechanism. It is a contact mechanism that performs switching actions with a specified stroke and a specified force. It is covered with a shell and has a driving rod on the outside. Because the contact spacing of the switch is relatively small, it is called a micro switch. It is also called a sensitive switch, a snap-action switch, and a pressure-activated fast switch. It is used for door switches in anti-theft systems, etc.

[0003] In the related technology, the micro switch includes an upper shell and a lower shell, a button is slidably connected to the lower shell, a moving contact piece and a static contact piece are arranged in the lower shell, the moving contact piece includes an elastic member and a moving piece, the elastic member drives the moving piece to move away from the static contact piece, the moving contact piece is located on the sliding path of the button, and the button drives the moving piece to abut against the static contact piece to realize the connection of the circuit.

[0004] In the prior art, to achieve circuit connectivity, connections need to be made through springs and fixing parts, which makes the assembly process difficult, and has low assembly efficiency and unstable product quality. Utility Model Content

[0005] In view of the above problems, the present utility model is proposed to provide a micro switch that overcomes the above problems or at least partially solves the above problems.

[0006] In order to solve the above problems, the utility model discloses a micro switch, comprising: a shell, a button assembly, an elastic member and a pin assembly; the shell is provided with a first abutment end; the button assembly comprises a pressure rod and a button, the button and the pressure rod abut each other, and the button assembly is located above the shell; the elastic member is provided with a second abutment end, the elastic member is connected to the button, the second abutment end is connected to the first abutment end, and the elastic member is located inside the shell; the pin assembly comprises a first pin and a second pin, the first pin is connected to the elastic member, and when the button is in a pressed state, the second pin is connected to the second abutment end.

[0007] Preferably, the housing is composed of at least two housing components to form a cavity, the button component is movably disposed at the upper end of the housing and extends out of the cavity; the pin component is located at the lower end of the housing and extends out of the cavity.

[0008] Preferably, a pressure rod safety groove is arranged on the upper part of the housing, the pressure rod safety groove is movably connected to one end of the pressure rod, and the middle part of the pressure rod abuts against the button.

[0009] Preferably, the elastic member is in an irregular shape, and the irregular shape is provided with at least one mounting opening and an elastic U-shaped piece.

[0010] Preferably, the first pin and the elastic member mounting opening are snap-connected with the elastic member U-shaped piece.

[0011] Preferably, a limit slot is provided at the upper end of the housing, and the limit slot is connected to the button.

[0012] Preferably, the housing further comprises at least one fixing installation hole.

[0013] Preferably, the pin assembly is provided with at least one fixed mounting hole.

[0014] The utility model includes the following advantages: the utility model proposes a micro switch, which includes a shell, a button assembly, an elastic member and a pin assembly; the shell is provided with a first abutting end; the button assembly includes a pressure rod and a button, the button and the pressure rod are abutted, and the button assembly is located above the shell; the elastic member is provided with a second abutting end, the elastic member is connected to the button, the second abutting end is connected to the first abutting end, and the elastic member is located inside the shell; the pin assembly includes a first pin and a second pin, the first pin is connected to the elastic member, and when the button assembly is in a pressed state, the second pin is connected to the second abutting end, which solves the problems of complicated assembly process and short service life of the switch, simplifies the assembly process, improves the stability of the micro switch and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall structural diagram of a micro switch embodiment of the utility model;

[0016] Figure 2 The utility model is a structural schematic diagram of a micro switch embodiment.

[0017] In the figure, 101, housing; 102, first abutment end; 103, fixed mounting hole; 104, housing fixing assembly; 201, pressure rod; 202, button; 301, elastic member; 302, second abutment end; 303, elastic U-shaped piece; 304, mounting opening; 401, first pin; 402, second pin; 403, second pin abutment end; 404, fixed mounting hole. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Some implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features thereof may be combined with each other.

[0020] Please refer to Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a micro switch, including: a shell 101, a button assembly, an elastic member 301 and a pin assembly; the shell 101 is one of the main key structures of the entire micro switch, and is the core body of the entire micro switch parts assembly. Most of the parts are completed by connecting with the shell 101, and the shell 101 is provided with a first abutting end 102; the button assembly includes a pressure rod 201 and a button 202, the button 202 and the pressure rod 201 abut, and the button assembly is located above the shell; the elastic member 301 is provided with a second abutting end 302, the elastic member 301 is connected to the button 202, the second abutting end 302 is connected to the first abutting end 102, and the elastic member 301 is located inside the shell 101; the pin assembly includes a first pin 401 and a second pin 402, the first pin 401 is connected to the elastic member 301, and when the button assembly is in a pressed state, the second pin 402 is connected to the second abutting end 302.

[0021] As a preferred embodiment, the shell 101 is composed of at least two shell components to form a cavity, the button component is movably arranged at the upper end of the shell 101 and extends out of the cavity; the pin component is located at the lower end of the shell 101 and extends out of the cavity; and the shell 101 is one of the main structures for fixed connection of other components. The shell 101 is assembled from at least two shell components in order to facilitate the connection and fixed connection between the shell 101 and the pressure rod 201, the button 202, the elastic member 301 and the pin component, and to protect the above-mentioned parts. The shell 101 selects a micro switch with a protective cover, a sealing structure or dustproof and waterproof characteristics to ensure the reliability of the equipment and reduce failures.

[0022] During operation, the effect of conducting operation connected by the elastic member 301 will be better. Specifically, by using the irregular shape of the elastic member 301, an arc will be generated when the moving contact piece and the static contact piece are separated. The first abutting end 102 and the second pin abutting end 403 abut the second abutting end 302 up and down through the action of the elastic member, and the abutment ensures the action of the micro switch, so that the micro switch can work normally.

[0023] By setting the elastic member 301 to cooperate with the corresponding button 202 and pin assembly, an arc is generated when the moving contact and the static contact of the micro switch are separated. Since the overall volume of the micro switch is small, the creepage distance between the moving contact and the static contact is small. Therefore, the upper shell and the lower shell need to be made of insulating material with excellent high-voltage resistance. The complexity of the micro switch implementation process is solved, and possible errors and waste in the assembly process can be reduced, and production efficiency is improved, thereby reducing energy consumption overload during the micro switch operation process. Compared with the existing technology, it is more efficient and more convenient, and the stability and service life of the micro switch are improved, saving costs.

[0024] It should be noted that the elastic member 301 can realize the micro switch action process through the elastic change process. In order to ensure the stability of the elastic member 301 during the action, the position direction of the first pin 401 can be adjusted. When the elastic member 301 is in action, the first pin 401 can also be fixed and installed, or further fixed, which can further ensure the stability of the elastic member 301 during operation.

[0025] As a preferred embodiment, a pressure rod safety groove is arranged on the upper part of the housing 101, and the pressure rod safety groove is movably connected to one end of the pressure rod 201, and the middle part of the pressure rod 201 abuts against the button 202. The pressure rod safety groove is arranged to ensure the normal movement of the pressure rod 201. The pressure rod 201 of this embodiment is mainly used to provide a force for the button 202 to move downward. The pressure rod 201 is arranged to facilitate triggering the button 202, and the pressure rod 201 has a long service life and reduces the wear of the button 202 during repeated mechanical movements.

[0026] When the pressing rod 201 completes the action, the button 202 triggers the elastic member 301 to act, and the second abutting end 302 will be connected from the first abutting end 102 to the second pin abutting end 403 to ensure smooth action of the micro switch.

[0027] As a preferred embodiment, the elastic member 301 is in an irregular shape, and the irregular shape is provided with at least one mounting port 304 and an elastic U-shaped piece 303. The first pin 401 is snap-connected with the elastic member mounting port 304 and the elastic U-shaped piece 303. The moving contact piece and the static contact piece of the micro switch will generate an arc when separated. The irregular elastic member 301 is used, which is different from the connection and conduction using springs and fixed parts in the prior art. The existing spring and fixed parts are connected to achieve the arc between the moving contact piece and the static contact piece, and the assembly process is complicated, and the switch device is prone to instability and is more prone to failure. The utility model mainly adopts irregular elastic members. Specifically, the elastic member 301 is mainly composed of an irregular shape on the outside, and at least one fixed mounting port 304 and an elastic U-shaped piece 303 are provided on the inside. The utility model can complete the micro switch action that the prior art needs to achieve through spring fixed parts through elastic members, effectively realizing a compact internal structure, a small gap between contacts, and can quickly transmit force and quickly act to achieve the goal of high sensitivity.

[0028] When the elastic member is working, the elastic member 301 is first triggered by the pressure rod 201 and the button 202, and the second abutment end 302 is connected from the first abutment end 102 to the second pin abutment end 403. Specifically, the connection between the irregular shape and the first pin 401 is as follows: the first pin 401 is provided with a branch connection end, and when the elastic member is fixedly connected, the first pin 401 is snap-connected with the installation port 304 of the elastic member 301 and the elastic U-shaped piece 303 to form a balanced working state.

[0029] As a preferred embodiment, the housing 101 also includes at least one fixed mounting hole 104, and the first pin 401 and the second pin 402 are provided with at least one fixed mounting hole 404. The fixed mounting holes mentioned in this embodiment are all related to the fixed connection of the micro switch, which not only ensures the fixed installation of the micro switch on the equipment, but also ensures the stability of the micro switch during operation.

[0030] As a preferred implementation method, due to the small overall volume of the micro switch, the creepage distance between the moving contact and the static contact is small, which is usually achieved by means of springs, parts and fixings. This embodiment can save costs on materials, reduce the difficulty in assembly, and greatly reduce the power loss rate in the overall micro switch movement function, effectively solving the problems of unstable product production quality and low assembly efficiency, saving costs, and improving the stability of the micro switch and extending its service life.

[0031] Finally, it should be noted that, in this article, relational terms such as first and second, etc. 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 terminal 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 terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0032] The micro switch provided by the utility model is introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A micro switch, characterized in that: include: Housing, button assembly, elastic member and pin assembly; The housing is provided with a first abutment end; The button assembly includes a pressure rod and a button, the button and the pressure rod are in abutment with each other, and the button assembly is located above the housing; The elastic member is provided with a second abutting end, the elastic member is connected to the button, the second abutting end is connected to the first abutting end, and the elastic member is located inside the housing; The pin assembly includes a first pin and a second pin, the first pin is connected to the elastic member, and when the button is in a pressed state, the second pin is connected to the second abutting end.

2. The micro switch according to claim 1, characterized in that: The shell is composed of at least two shell components to form a cavity. The button component is movably arranged at the upper end of the shell and extends out of the cavity; the pin component is located at the lower end of the shell and extends out of the cavity.

3. The micro switch according to claim 1 or 2, characterized in that: A pressure rod safety groove is arranged at the upper part of the housing, the pressure rod safety groove is movably connected to one end of the pressure rod, and the middle part of the pressure rod abuts against the button.

4. The micro switch according to claim 1, characterized in that: The elastic member is in an irregular shape, and the irregular shape is provided with at least one mounting opening and an elastic U-shaped piece.

5. The micro switch according to claim 4, characterized in that: The first pin is snap-connected with the elastic member mounting opening and the elastic U-shaped piece.

6. The micro switch according to claim 1 or 2, characterized in that: A limit slot is provided at the upper end of the shell, and the limit slot is connected to the button.

7. The micro switch according to claim 2, characterized in that: The housing further comprises at least one fixing mounting hole.

8. The micro switch according to claim 1, characterized in that: The pin assembly is provided with at least one fixing installation hole.

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