CN209929191U

CN209929191U - Explosion-proof micro-gap switch

Info

Publication number: CN209929191U
Application number: CN201921183134.6U
Authority: CN
Inventors: 黄炎; 陈列
Original assignee: Huizhou Feng Wei Wei Qi Electronic Technology Co Ltd
Current assignee: Huizhou Feng Wei Wei Qi Electronic Technology Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-01-10
Anticipated expiration: 2029-07-25

Abstract

The utility model belongs to the technical field of the micro-gap switch technique and specifically relates to an explosion-proof micro-gap switch, including the micro-gap switch body, the micro-gap switch body includes micro-gap switch casing and casing apron, the fixed first screw hole of having seted up on the casing apron openly, first screw hole inside fixation is equipped with interior hex bolts, casing apron's front center department is fixed and has been seted up first mounting groove, the internally mounted of first mounting groove has first fin heat piece subassembly, first fin heat piece subassembly includes fin heat piece and connection. The utility model discloses a design micro-gap switch casing and housing cover all adopt the aluminum alloy die-casting shaping and the surface is handled through high-pressure spraying plastics to first fin hot plate subassembly and second fin hot plate subassembly all adopt the copper product matter on having replaced current shell for the micro-gap switch of plastics and micro-gap switch body, because the heat conductivility of copper, can scatter and disappear away the temperature of micro-gap switch body fast, thereby make micro-gap switch have blast proof effect.

Description

Explosion-proof micro-gap switch

Technical Field

The utility model relates to a micro-gap switch technical field specifically is an explosion-proof micro-gap switch.

Background

The microswitch is a switch with a micro contact interval and a quick-acting mechanism, a contact mechanism for switching action by a specified stroke and a specified force is covered by a shell, and a driving rod is arranged outside the microswitch, so the microswitch is named as the microswitch, the traditional microswitch is provided with a plastic shell, when in operation, an external force pushes a metal contact of the microswitch inside through a nylon push rod, so that the microswitch is switched on and off, electric sparks are generated at the moment of switching on and off the contact, and the sparks are generated for a plurality of times along with long-time use, so the sparks are always accompanied with temperature, the temperature can be accumulated, the inside of the microswitch is in a relatively sealed state, and the microswitch is an ignition source because the temperature cannot be timely eliminated and changes along with time, so the microswitch can be slowly corroded due to the plastic shell, in complex circuit elements and interleaving of wires, using microswitches with plastic housings is prone to fire or explosion and reduces the lifetime of the microswitch.

To sum up, the utility model discloses a design an explosion-proof micro-gap switch and solve the problem that exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof micro-gap switch to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an explosion-proof microswitch comprises a microswitch body, wherein the microswitch body comprises a microswitch shell and a shell cover plate, a first threaded hole is fixedly formed in the front of the shell cover plate, an inner hexagonal screw is fixedly arranged in the first threaded hole, a first mounting groove is fixedly formed in the center of the front of the shell cover plate, a first fin heating element assembly is mounted in the first mounting groove and comprises a fin heating element and a connecting block, a second threaded hole is fixedly formed in the connecting block, a second mounting groove is fixedly formed in the center of the back of the microswitch shell, a second fin heating element assembly is mounted in the second mounting groove, a first terminal is fixedly arranged at the left end of the microswitch shell, a second terminal is fixedly arranged at the bottom of the microswitch shell, and one end of a movable arm is fixedly connected to the end face of the microswitch shell, the end face of the other end of the movable arm is connected with a button roller, and a button is fixedly arranged below the movable arm and on the microswitch shell.

Preferably, the microswitch shell and the shell cover plate are both formed by aluminum alloy in a die-casting mode, and the surfaces of the microswitch shell and the shell cover plate are subjected to high-pressure plastic spraying treatment.

Preferably, the microswitch housing and the housing cover plate are connected through an inner hexagon screw in a first threaded hole in the housing cover plate, and the connection mode is threaded connection.

Preferably, the inside of the second threaded hole on the connecting block is provided with an inner hexagon screw, and the connecting block is in threaded connection with the shell cover plate through the inner hexagon screw.

Preferably, the connecting blocks are symmetrically arranged in two groups based on the fin heat pieces as an axis, and the first fin heat piece assembly and the second fin heat piece assembly are integrally formed by copper materials.

Preferably, the first fin heat assembly and the second fin heat assembly have the same structure and the same connecting structure.

Preferably, the first threaded holes are four in number and are all arranged at four corners of the cover plate of the shell, and the movable arm is made of 304# stainless steel and is connected with the button roller in a rotating manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, all adopt aluminum alloy die-casting shaping and the surface is handled through high-pressure spraying plastics through micro-gap switch casing and casing apron to having replaced current shell for the micro-gap switch of plastics, having solved can produce the electric spark in the contact and disconnected twinkling of an eye, along with long-time use, produce the spark many times, the spark is the problem that the micro-gap switch of plastics slowly corrodes to the shell along with the transition of time, and then has prolonged micro-gap switch's life and make micro-gap switch have blast proof effect.

2. The utility model discloses in, all adopt copper product matter integrated into one piece to form through first finned heat piece subassembly and second finned heat piece subassembly on the micro-gap switch body, because the heat conductivility of copper, can scatter and disappear away the temperature of micro-gap switch body fast, thereby the accumulation of having solved the temperature makes the shell slowly "scorch" soft for the micro-gap switch of plastics, along with the time migration, finally cause micro-gap switch to be the ignition source, in the crisscross of complicated circuit component and electric wire, cause conflagration or the problem of explosion easily, thereby make micro-gap switch have blast proof effect.

3. The utility model discloses in, all adopt the aluminum alloy die-casting shaping and the surface is handled through high-pressure spraying plastics through micro-gap switch casing and housing cover board to first fin hot plate subassembly and second fin hot plate subassembly all adopt copper product matter integrated into one piece to form on having replaced current shell for the micro-gap switch of plastics and micro-gap switch body, because the heat conductivility of copper, can scatter and disappear away the temperature of micro-gap switch body fast, thereby make micro-gap switch have blast proof effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall left-side view structure of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is a schematic structural view of the first fin heating element assembly of the present invention.

In the figure: the automatic temperature control device comprises a microswitch body 1, a microswitch shell 2, a shell cover plate 3, a first threaded hole 4, a hexagon socket screw 5, a first mounting groove 6, a first fin heating element assembly 7, a fin heating element 8, a connecting block 9, a second threaded hole 10, a second mounting groove 11, a second fin heating element assembly 12, a first terminal 13, a second terminal 14, a movable arm 15, a button roller 16 and a button 17.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

an explosion-proof microswitch comprises a microswitch body 1, the microswitch body 1 comprises a microswitch shell 2 and a shell cover plate 3, a first threaded hole 4 is fixedly formed in the front of the shell cover plate 3, an inner hexagon screw 5 is fixedly arranged in the first threaded hole 4, a first mounting groove 6 is fixedly formed in the center of the front of the shell cover plate 3, a first fin component 7 is mounted in the first mounting groove 6, the first fin component 7 comprises a fin 8 and a connecting block 9, a second threaded hole 10 is fixedly formed in the connecting block 9, a second mounting groove 11 is fixedly formed in the center of the back of the microswitch shell 2, a second fin component 12 is mounted in the second mounting groove 11, a first terminal 13 is fixedly arranged at the left end of the microswitch shell 2, a second terminal 14 is fixedly arranged at the bottom of the microswitch shell 2, and one end of a movable arm 15 is fixedly connected to the end face of the microswitch shell 2, a button roller 16 is connected to the end surface of the other end of the movable arm 15, and a button 17 is fixedly provided below the movable arm 15 and on the microswitch housing 2.

The utility model discloses work flow: when the microswitch is used, the microswitch shell 2 and the shell cover plate 3 are both formed by aluminum alloy die-casting and the surfaces of the microswitch shell and the shell cover plate are subjected to high-pressure plastic spraying treatment, so that the microswitch replaces the existing microswitch with a plastic shell, the problems that electric sparks are generated at the moment of contact connection and disconnection, sparks are generated for many times along with long-time use, and the microswitch with a plastic shell is slowly eroded by the change of the sparks along with time are solved, the service life of the microswitch is further prolonged, the first finned heat sheet component 7 and the second finned heat sheet component 12 on the microswitch body 1 are integrally formed by copper materials, the temperature in the microswitch body 1 can be rapidly dissipated due to the heat conduction performance of copper, the problem that the microswitch with a plastic shell is slowly scorched and softened along with the change of time due to the accumulation of temperature is solved, and finally the microswitch is used as an ignition source, in complex circuit elements and in the interleaving of wires, fire or explosion problems are easily caused, so that the microswitch has an explosion-proof function.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An explosion-proof micro-gap switch, includes micro-gap switch body (1), its characterized in that: the micro switch body (1) comprises a micro switch shell (2) and a shell cover plate (3), a first threaded hole (4) is fixedly formed in the front of the shell cover plate (3), an inner hexagonal screw (5) is fixedly arranged in the first threaded hole (4), a first mounting groove (6) is fixedly formed in the front center of the shell cover plate (3), a first fin assembly (7) is mounted in the first mounting groove (6), the first fin assembly (7) comprises a fin (8) and a connecting block (9), a second threaded hole (10) is fixedly formed in the connecting block (9), a second mounting groove (11) is fixedly formed in the back center of the micro switch shell (2), a second fin assembly (12) is mounted in the second mounting groove (11), and a first terminal (13) is fixedly arranged at the left end of the micro switch shell (2), the bottom of micro-gap switch casing (2) is fixed and is equipped with second terminal (14), the one end of fixedly connected with swing arm (15) on the terminal surface of micro-gap switch casing (2), the terminal surface of the swing arm (15) other end is connected with button gyro wheel (16), the below of swing arm (15) is and be located micro-gap switch casing (2) and fixedly be equipped with button (17).

2. An explosion proof microswitch as in claim 1 wherein: the microswitch shell (2) and the shell cover plate (3) are both formed by aluminum alloy die-casting, and the surfaces of the microswitch shell and the shell cover plate are subjected to high-pressure plastic spraying treatment.

3. An explosion proof microswitch as in claim 1 wherein: the micro-switch shell (2) is connected with the shell cover plate (3) through an inner hexagon screw (5) inside a first threaded hole (4) in the shell cover plate (3), and the connection mode is threaded connection.

4. An explosion proof microswitch as in claim 1 wherein: the inside of second screw hole (10) is equipped with socket cap screw (5) on connecting block (9) and connecting block (9) pass through socket cap screw (5) threaded connection casing apron (3).

5. An explosion proof microswitch as in claim 1 wherein: the connecting blocks (9) are symmetrically arranged into two groups for the axis based on the fin hot pieces (8), and the first fin hot piece assembly (7) and the second fin hot piece assembly (12) are made of copper materials and are integrally formed.

6. An explosion proof microswitch as in claim 1 wherein: the first fin assembly (7) and the second fin assembly (12) are identical in structure and connection structure.

7. An explosion proof microswitch as in claim 1 wherein: the first threaded holes (4) are four and are all arranged at four corners of the shell cover plate (3), and the movable arm (15) is made of 304# stainless steel and is connected with the button roller (16) in a rotating mode.