CN213519833U

CN213519833U - Magnetic protection module of switch device

Info

Publication number: CN213519833U
Application number: CN202021650105.9U
Authority: CN
Inventors: 刘时胜; 王斌; 周文静; 付志强
Original assignee: Jiangxi Hangtong Electric Technology Co ltd; Shanghai Retel Electric Technology Co ltd
Current assignee: Jiangxi Hangtong Electric Technology Co ltd; Shanghai Retel Electric Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-06-22
Anticipated expiration: 2030-08-10

Abstract

The utility model provides a switching device's magnetism protection module, including casing and magnetism trip assembly, the utility model discloses a be provided with coil skeleton, move iron core and quiet iron core, coil skeleton's inside left side is provided with mobilizable iron core that moves, quiet iron core fixed connection is in coil skeleton's inside right side, during the use, through the operation of accomplishing the breaking circuit that moves the iron core can be quick, and simultaneously, compare in traditional iron core, move the iron core and set up inside the coil, the magnetism induction line around the coil is concentrated and is passed the inside of moving the iron core, thereby make the iron core possess faster response speed, and then the action response speed when having improved the whole breaking circuit of device, the embedding sets up the iron core that moves inside the coil and is favorable to reducing the product volume, and is more practical.

Description

Magnetic protection module of switch device

Technical Field

The utility model relates to the field of switch technology, concretely relates to switching device's magnetism protection module.

Background

The circuit breaker is one kind of switch, in order to guarantee the electric safety of users, the magnetic protection device used for cutting off the circuit is generally equipped with in the circuit breaker, when the short circuit appears in the circuit or transships the question, the magnetic protection device can all be fast automatic break-off circuit, avoid the accident to expand, there are various magnetic protection devices used for switch on the market at present, wherein, there are electromagnetic tripping devices relatively more common, when the serious overload appears in the circuit or fault such as short circuit, electromagnetic tripping device produces the magnetic force of enough big to overcome the reaction force of the spring and thus attract the armature, finish the work of the automatic open circuit, has played the effect of short-circuit protection;

however, the conventional magnetic protection module used in the circuit breaker generally comprises a magnetic yoke, an iron core and an armature, the iron core occupies a large part of the volume in the magnetic protection module, and the overlarge volume hinders the development of the miniature circuit breaker and affects the overall performance of the product, so that the electromagnetic trip device in the prior art needs to be optimized.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model discloses aim at solving among the prior art iron core and occuping the technical problem that the volume is too big to lead to influencing product wholeness ability, provide a switching device's magnetism protection module.

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

a magnetic protection module for a switching device, comprising: the magnetic release component is embedded in the shell;

the housing includes: the locking mechanism comprises a mechanism assembly, a trip rod, a supporting shaft, a conversion piece, a placing groove and a return spring, wherein the mechanism assembly is arranged below the inner part of the shell, the trip rod is embedded in the mechanism assembly, the supporting shaft is fixedly connected to the upper part of the inner part of the shell, the conversion piece is nested on one side, close to the shell, of the supporting shaft, the placing groove is formed in the outer side of the conversion piece, and the return spring is nested on one side, far away from the shell, of the supporting shaft;

the magnetic trip assembly includes: coil skeleton, move iron core, dropout ejector pin and quiet iron core, coil skeleton sets up in the top of magnetism trip subassembly, it sets up in coil skeleton's inside to move the iron core embedding, dropout ejector pin fixed connection is in the right flank center department that moves the iron core, quiet iron core embedding sets up in coil skeleton's inside right side.

Preferably, one end of the trip rod, which is far away from the mechanism component, is embedded in the placing groove.

Preferably, one end of the return spring abuts against the converting piece, and the other end of the return spring abuts against the shell.

Preferably, the coil framework is wound with a coil in a spiral arrangement at the outer side.

Preferably, a space is arranged between the movable iron core and the static iron core, and the length of the space is the same as that of the tripping ejector rod.

Has the advantages that:

(1) the utility model discloses a be provided with coil skeleton, move iron core and quiet iron core, coil skeleton's inside left side is provided with mobilizable iron core that moves, quiet iron core fixed connection is on coil skeleton's inside right side, during the use, through the operation of accomplishing the broken circuit that the iron core can be quick, and simultaneously, compare in traditional iron core, it sets up inside the coil to move the iron core, the inside of moving the iron core is passed in the concentrated magnetic induction line around the coil, thereby it has faster response speed to make the iron core possess, and then the action response speed when having improved the whole broken circuit of device, the embedding sets up the inside iron core that moves of coil and is favorable to dwindling the product volume, and is more practical.

Drawings

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

Fig. 2 is a schematic view of a local structure of the magnetic trip assembly of the present invention.

Fig. 3 is a schematic view of the local structure of the movable iron core of the present invention.

Fig. 4 is a schematic view of a local structure of the conversion block of the present invention.

Fig. 5 is an enlarged schematic structural diagram of fig. 1A of the present invention.

Description of the reference numerals

The magnetic trip device comprises a shell 1, a mechanism component 101, a trip bar 102, a supporting shaft 103, a conversion piece 104, a placement groove 105, a return spring 106, a magnetic trip component 2, a coil framework 201, a movable iron core 202, a trip ejector rod 203 and a static iron core 204.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In an embodiment of the present invention, as shown in fig. 1 to 5, a magnetic protection module of a switching device includes: the magnetic release device comprises a shell 1 and a magnetic release component 2, wherein the magnetic release component 2 is embedded in the shell 1;

the housing 1 includes: the mechanism comprises a mechanism assembly 101, a trip rod 102, a supporting shaft 103, a conversion piece 104, a placement groove 105 and a return spring 106, wherein the mechanism assembly 101 is arranged below the inner part of the shell 1, the trip rod 102 is embedded in the mechanism assembly 101, the supporting shaft 103 is fixedly connected to the upper part of the inner part of the shell 1, the conversion piece 104 is nested on one side of the supporting shaft 103 close to the shell 1, the placement groove 105 is arranged on the outer side of the conversion piece 104, and the return spring 106 is nested on one side of the supporting shaft 103 far away from the shell 1;

the magnetic trip assembly 2 includes: coil skeleton 201, move iron core 202, tripping ejector rod 203 and quiet iron core 204, coil skeleton 201 sets up in the top of magnetism trip assembly 2, moves the iron core 202 embedding and sets up in the inside of coil skeleton 201, and tripping ejector rod 203 fixed connection moves the right flank center department of iron core 202, and quiet iron core 204 embedding sets up in the inside right side of coil skeleton 201.

This embodiment is preferable, and the one end embedding that trip bar 102 kept away from mechanism's subassembly 101 sets up in the inside of standing groove 105, is convenient for install trip bar 102 through standing groove 105, and standing groove 105 can play spacing effect to trip bar 102 simultaneously, and when converter 104 hit trip bar 102, trip bar 102's response time is faster, and simultaneously, trip bar 102's action will be more accurate, makes the whole more reliable of device through standing groove 105.

Preferably, in this embodiment, one end of the return spring 106 abuts against the converting element 104, and the other end of the return spring 106 abuts against the housing 1, so that when a user pulls the mechanism assembly 101 to perform a closing operation, the return spring 106 can restore the converting element 104 to an initial position through its own extrusion, and the user can easily complete the closing operation.

In this embodiment, a coil is preferably wound around the bobbin 201, and the movement of the plunger 202 is controlled by generating a magnetic force by the coil on the outside of the bobbin 201.

Preferably, in this embodiment, a distance is provided between the movable iron core 202 and the stationary iron core 204, the length of the distance is the same as the length of the trip rod 203, when a fault such as a short circuit or an overload occurs in a circuit, the current in the coil is increased, and the magnetic force generated by the coil is increased, so that the movable iron core 202 inside the coil bobbin 201 drives the trip rod 203 to move toward the stationary iron core 204, and the trip rod 203 impacts the converting element 104, so that the converting element 104 strikes the trip rod 102, and the breaking operation of the circuit is completed.

The working principle is as follows: firstly, when the device is used, the whole device is assembled inside the switch, and the whole device is connected with a conductive loop in the switch in series, then, when the current in the circuit normally runs, the movable iron core 202 is positioned at the left side inside the coil framework 101, the tripping ejector rod 203 and the conversion piece 104 are in a separated state, then, when the circuit has faults such as short circuit or overload, the current in the coil is increased, the magnetic force generated by the coil is increased, the movable iron core 202 inside the coil framework 201 drives the tripping ejector rod 203 to move towards the direction of the static iron core 204, finally, the tripping ejector rod 203 impacts the conversion piece 104, the conversion piece 104 strikes the tripping rod 102, the mechanism component enters a tripping state, and the breaking operation of the circuit is completed.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. In the technical idea scope of the present invention, it can be right to the technical solution of the present invention perform multiple simple modifications, including each technical feature combined in any other suitable manner, these simple modifications and combinations should be regarded as the disclosed content of the present invention, and all belong to the protection scope of the present invention.

Claims

1. A magnetic protection module for a switching device, comprising: casing (1) and magnetism trip unit (2), its characterized in that: the magnetic trip component (2) is embedded in the shell (1);

the housing (1) comprises: the mechanism comprises a mechanism assembly (101), a trip rod (102), a supporting shaft (103), a conversion piece (104), a placing groove (105) and a return spring (106), wherein the mechanism assembly (101) is arranged below the inside of the shell (1), the trip rod (102) is embedded in the mechanism assembly (101), the supporting shaft (103) is fixedly connected above the inside of the shell (1), the conversion piece (104) is nested on one side, close to the shell (1), of the supporting shaft (103), the placing groove (105) is arranged on the outer side of the conversion piece (104), and the return spring (106) is nested on one side, far away from the shell (1), of the supporting shaft (103);

the magnetic trip assembly (2) comprises: coil skeleton (201), move iron core (202), dropout ejector pin (203) and quiet iron core (204), coil skeleton (201) sets up in the top of magnetism trip assembly (2), it sets up in the inside of coil skeleton (201) to move iron core (202) embedding, dropout ejector pin (203) fixed connection is in the right flank center department of moving iron core (202), quiet iron core (204) embedding sets up in the inside right side of coil skeleton (201).

2. A magnetic protection module of a switching device according to claim 1, characterized in that: one end of the trip rod (102) far away from the mechanism component (101) is embedded in the placing groove (105).

3. A magnetic protection module of a switching device according to claim 1, characterized in that: one end of the return spring (106) is arranged to abut against the conversion piece (104), and the other end of the return spring (106) is arranged to abut against the shell (1).

4. A magnetic protection module of a switching device according to claim 1, characterized in that: and the outer side of the coil framework (201) is wound with a coil which is spirally arranged.

5. A magnetic protection module of a switching device according to claim 1, characterized in that: a distance is arranged between the movable iron core (202) and the static iron core (204), and the length of the distance is the same as that of the tripping ejector rod (203).