CN211507553U

CN211507553U - Circuit protection device with guide moving contact activity route

Info

Publication number: CN211507553U
Application number: CN202020469849.4U
Authority: CN
Inventors: 王海良
Original assignee: Minpu Electric Co ltd
Current assignee: Minpu Electric Group Co., Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-09-15
Anticipated expiration: 2030-04-02

Abstract

The utility model provides a circuit protection device with guide moving contact activity route, including the circuit protection device main part, be equipped with moving contact, static contact in the circuit protection device main part, in order to restrict the moving contact along setting for the direction activity, be equipped with the guide of the directional activity of guide moving contact in the circuit protection device main part, this guide has a guide, and the moving contact is along the directional activity of this guide when the motion. The utility model discloses a set up the guide and force the moving contact directional activity in divide-shut brake to make the moving contact can not produce the flashover phenomenon that the dislocation avoided or produced when reducing the divide-shut brake in the divide-shut brake.

Description

Circuit protection device with guide moving contact activity route

Technical Field

The utility model belongs to the technical field of circuit protection device, like circuit breaker, fuse etc. especially, relate to a circuit protection device with guide moving contact activity route.

Background

In the current circuit protection device in the market, tripping can occur under the conditions of leakage or overload of a circuit in a circuit breaker, switching-on is needed after maintenance after tripping, or switching-off and switching-on operations are needed to be carried out on the circuit protection device when the circuit needs to be rearranged or maintained, switching-on and switching-off of the circuit protection device are frequent events, while a moving contact in the current circuit protection device is not provided with a guide to move along a fixed direction when moving, so that dislocation of the moving contact in the motion process is easily caused, particularly, a flashover phenomenon can be generated when the moving contact is in contact with a fixed contact due to dislocation in the switching-on process, burning is generated on the fixed contact, the conductive effect is influenced, the damage is caused on parts, and the generated dislocation can lead to overhigh temperature rise of the circuit protection device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a circuit protection device with guide moving contact activity direction is provided, realize the protection to the static contact through guide moving contact activity direction.

The utility model discloses a realize through following technical scheme:

the utility model provides a circuit protection device with guide moving contact activity route, including the circuit protection device main part, be equipped with moving contact, static contact in the circuit protection device main part, in order to restrict the moving contact along setting for the direction activity, be equipped with the guide of the directional activity of guide moving contact in the circuit protection device main part, this guide has a guide, and the moving contact is along the directional activity of this guide when the motion.

Preferably, the guide part is a movable groove, and the movable contact moves directionally in the movable groove when the circuit protection device is switched on and switched off.

Preferably, in order to form the movable groove on the guide member, two plates protruding upwards are arranged on the guide member, the movable groove is formed between the two plates, and the movable contact moves between the two plates during the directional movement. The inner walls of the two plates are smooth planes.

In order to enable the movable contact to be abutted against the fixed contact, preferably, the bottom of the guide piece between the two raised plates is a hollow structure, the fixed contact extends into the movable groove through the hollow structure, and the contact is a boss structure protruding out of the end face of the fixed contact.

In order to clamp the guide piece on the static contact, the hollow structure is preferably sleeved in the end of the static contact, at least one inner wall of the hollow structure of the guide piece is provided with a convex blocking and connecting part, and the blocking and connecting part of the guide piece positions the guide piece at a set position.

In order to enable the iron core on the static contact to be clamped on the static contact, the guide piece is preferably designed to comprise a first limiting portion and a second limiting portion, a clamping groove is formed between the first limiting portion and the second limiting portion, and the static contact and the iron core for increasing electric repulsion force are clamped between the first limiting portion and the second limiting portion. The iron core is clamped into the static contact and then the guide piece is clamped into the iron core, so that the iron core can be limited from sliding out of the static contact.

In order to save cost and facilitate processing, the guide piece is designed to be integrally formed by plastic materials.

The utility model has the advantages that: the utility model discloses a set up the guide and force the moving contact directional activity in divide-shut brake to make the moving contact can not produce the dislocation in divide-shut brake, the arcing phenomenon that produces when avoiding or reducing the divide-shut brake.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the connection structure between the guiding member and the moving and static contacts of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

As shown in fig. 1 and 2, a circuit protection device with a path for guiding a moving contact 1 to move includes a circuit protection device main body, a moving contact 1 and a static contact 2 are disposed in the circuit protection device main body, a guide member 3 for guiding the moving contact 1 to move directionally is disposed in the circuit protection device main body in order to limit the moving contact 1 to move along a set direction, the guide member 3 has a guide portion, and the moving contact 1 moves directionally along the guide portion when moving. In order to save cost and facilitate processing, the guide piece 3 is designed to be integrally formed by plastic materials. It is worth noting that the guiding part is a movable groove, and the movable contact 1 moves directionally in the movable groove when the circuit protection device is switched on and switched off. In order to form a movable groove on the guide member 3, it is further worth noting that two upward-protruding plates 31 are arranged on the guide member 3, a movable groove is formed between the two plates 31, and the movable contact 1 moves between the two plates 31 during the directional movement. The inner walls of the two plates 31 are smooth and flat. In order to make the movable contact 1 collide with the stationary contact 2, it is further noted that a hollow structure 32 is formed at the bottom of the guide 3 between the two raised plates 31, and the contact of the stationary contact 2 extends into the movable slot through the hollow structure. The contact is a boss structure protruding from the end face of the static contact 2. In order to clamp the guide piece 3 on the static contact 2, it is further worth noting that the hollow structure is sleeved in the end of the static contact 2, at least one inner wall of the hollow structure of the guide piece 3 is provided with a convex blocking part 33, and the blocking part 33 of the guide piece 3 positions the guide piece 3 at a set position. In order to enable the iron core 4 on the static contact 2 to be clamped on the static contact 2, it is further noted that the guide 3 is designed to include a first limiting portion 34 and a second limiting portion 35, a clamping groove is formed between the first limiting portion 34 and the second limiting portion 35, and the static contact 2 and the iron core 4 for increasing the electrical repulsive force are clamped between the first limiting portion 34 and the second limiting portion 35. The iron core 4 is clamped into the static contact 2 and then the guide piece 3 is clamped in, so that the iron core 4 can be limited to slide out of the static contact 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a circuit protection device with guide moving contact activity route, includes the circuit protection device main part, is equipped with moving contact, static contact, its characterized in that in the circuit protection device main part: the circuit protection device is characterized in that a guide piece for guiding the moving contact to move directionally is arranged in the circuit protection device main body, the guide piece is provided with a guide part, and the moving contact moves directionally along the guide part when moving.

2. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 1, wherein: the guide part is a movable groove, and the moving contact of the circuit protection device moves in the movable groove in a directional mode when the circuit protection device is switched on and switched off.

3. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 1 or 2, wherein: the guide part is provided with two plates protruding upwards, a movable groove is formed between the two plates, and the moving contact moves between the two plates during directional movement.

4. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 3, wherein: the bottom of the guide piece between the two raised plates is of a hollow structure, and the static contact extends into the movable groove through the hollow structure.

5. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 4, wherein: the hollow structure is sleeved in the end head of the static contact, at least one inner wall of the guide piece hollow structure is provided with a convex blocking and connecting part, and the blocking and connecting part of the guide piece positions the guide piece at a set position.

6. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 5, wherein: the guide piece comprises a first limiting part and a second limiting part, a clamping groove is formed between the first limiting part and the second limiting part, and the static contact and the iron core for increasing the electric repulsion force are clamped between the first limiting part and the second limiting part.

7. A circuit protection device provided with a path for guiding the movement of a movable contact according to claim 6, wherein: the guide piece is made of plastic materials and is integrally formed.