CN217214619U

CN217214619U - Contact structure

Info

Publication number: CN217214619U
Application number: CN202220021742.2U
Authority: CN
Inventors: 蔡元钦; 周国毅; 张悦敦
Original assignee: Wuxi New Hongtai Electrical Technology Co ltd
Current assignee: Wuxi New Hongtai Electrical Technology Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-08-16
Anticipated expiration: 2032-01-05

Abstract

A contact structure, comprising: bridge type contact, female arranging, the one end bottom of bridge type contact is provided with the contact, the contact with bridge type contact structure as an organic whole, female arranging is last to be provided with the contact groove, female arranging is last still to be provided with limit structure, the contact is located the contact groove and pass through limit structure with the contact groove is followed female arranging's spacing cooperation of axial. The utility model discloses not only reduced calorific capacity, avoided appearing the risk that horizontal pulling force leads to contact and female row to break away from moreover, made the utility model discloses a reliability is higher.

Description

Contact structure

Technical Field

The utility model relates to a technical field of circuit breaker especially relates to a contact structure.

Background

As a core power transmission and distribution device in a low-voltage power distribution system, the development trend of circuit breaker products is toward miniaturization of product volume and enlargement of product capacity. The performance of the moving contact as a core component of the circuit breaker directly determines the volume and the current carrying capacity of a product.

Present chinese patent CN211208373U a circuit breaker bridge type contact mechanism through setting up at the convex surface of bridge type contact and setting up the recess on female arranging, realizes increasing contact area of contact and female arranging to the calorific capacity that reduces, but in the above-mentioned embodiment, when horizontal pulling force appears, the phenomenon can break away from with the recess to the convex surface, when breaking away from each other moreover, because bridge type contact swing range is less, can't in time discover the trouble when the installation, thereby lead to the circuit breaker phenomenon of burning out.

Disclosure of Invention

In view of the above problems of the existing circuit breakers, it is an object of the present invention to provide a contact structure with simple structure and high reliability.

The specific technical scheme is as follows:

a contact structure, comprising: bridge type contact, female arranging, the one end bottom of bridge type contact is provided with the contact, the contact with bridge type contact structure as an organic whole, female arranging is last to be provided with the contact groove, female arranging is last still to be provided with limit structure, the contact is located the contact groove and pass through limit structure with the contact groove is followed female arranging's spacing cooperation of axial.

As a further improvement and optimization of the scheme, the contact groove comprises two inclined surfaces, namely a first inclined surface and a second inclined surface, the bottom of the first inclined surface is connected with the bottom of the second inclined surface, and the first inclined surface and the second inclined surface form a V-shaped structure.

As further improvement and optimization of the scheme, the limiting structure is a limiting rib, the limiting rib is connected to the notch of the contact groove, and the limiting rib and the busbar are of an integrated structure.

As a further improvement and optimization of the scheme, the bottom of one side of the limiting rib, which is close to the contact groove, is connected with the top end of the first inclined plane.

As further improvement and optimization of the scheme, one surface of the limiting rib, which is close to the contact groove, is set to be a vertical surface.

As a further improvement and optimization of the scheme, an arc-shaped notch is further arranged on the busbar, an opening of the arc-shaped notch is transversely arranged, and the bottom end of the arc-shaped notch is connected with the top end of the second inclined plane.

As a further improvement and optimization of the scheme, the bottom end of the contact is arranged to be of an arc-shaped structure.

As further improvement and optimization of the scheme, the bottom end of the contact is in contact with the first inclined plane and the second inclined plane, and one side, far away from the arc-shaped notch, of the contact is in transverse limit fit with the vertical surface of the limit rib.

Compared with the prior art, the technical scheme has the positive effects that:

(1) the utility model discloses when the installation, when the bottom of the contact point who sets up on the bridge type contact and the top contact of spacing muscle, the amplitude of fluctuation of bridge type contact is great this moment, easily finds that the contact point is not installed in the contact tank, has reduced because of the contact point does not carry out work at operating position and has leaded to the circuit breaker phenomenon of burning out.

(2) The utility model discloses after the installation, when horizontal pulling force appears, spacing muscle is close to the vertical face of contact groove and the spacing cooperation in one side that arc breach was kept away from to the contact, has effectually prevented that the contact breaks away from out of the contact groove outside, makes the reliability of circuit breaker higher.

(3) The utility model discloses a first inclined plane constitutes "V" shape structure with the second inclined plane, has increased contact surface of contact groove and contact, reduces calorific capacity.

Drawings

Fig. 1 is a schematic diagram of a busbar structure of a contact structure according to the present invention;

fig. 2 is a schematic structural view of a bridge-type contact piece of a contact structure of the present invention;

in the drawings:

1. a busbar; 2. a contact groove; 3. a bridge-type contact; 4. a contact point; 21. an arc-shaped notch; 22. a first inclined surface; 23. a second inclined surface; 24. and limiting ribs.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Fig. 1 is a schematic diagram of a busbar structure of a contact structure according to the present invention; fig. 2 is a schematic structural view of a bridge-type contact piece of a contact structure of the present invention; as shown in fig. 1-2, a contact structure of a preferred embodiment is shown, comprising: bridge type contact 3, female 1 of arranging, bridge type contact 3's one end bottom is provided with contact 4, and contact 4 and bridge type contact 3 be the integral structure, are provided with contact groove 2 and limit structure on female 1 arranging, and contact 4 is located contact groove 2 and transversely spacing cooperation through limit structure and contact groove 2.

Further, as a preferred embodiment, the contact groove 2 includes two inclined surfaces, namely a first inclined surface 22 and a second inclined surface 23, and the bottom of the first inclined surface 22 is connected with the bottom of the second inclined surface 23 to form a "V" shaped structure; the first inclined surface 22 and the second inclined surface 23 form a V-shaped structure, so that the contact area between the contact groove 2 and the contact point 4 is increased, and the heat generation is reduced.

Further, as a preferred embodiment, the limiting structure is a limiting rib 24, the limiting rib 24 is connected at the notch of the contact groove 2, and the limiting rib 24 and the busbar 1 are of an integrated structure.

Further, as a preferred embodiment, the bottom of the limiting rib 24 near the side contacting the groove 2 is connected to the top of the first inclined surface 22.

Further, as a preferred embodiment, one surface of the limiting rib 24 close to the contact groove 2 is set to be a vertical surface.

Further, as a preferred embodiment, the busbar 1 is further provided with an arc-shaped notch 21, an opening of the arc-shaped notch 21 is transversely arranged, and the bottom end of the arc-shaped notch 21 is connected with the top end of the second inclined plane 23.

Further, as a preferred embodiment, the bottom end of the contact 4 is provided in an arc-shaped configuration.

Further, as a preferred embodiment, the bottom end of the contact 4 contacts with the first inclined surface 22 and the second inclined surface 23, and one side of the contact 4 away from the arc notch 21 is laterally in limit fit with the vertical surface of the limit rib 24.

After the installation, when horizontal pulling force appeared, spacing muscle 24 was close to the vertical face of contact groove 2 and the spacing cooperation in one side that arc breach 21 was kept away from to contact 4, and the effectual contact 4 that has prevented breaks away from out of contact groove 2 outside, makes the reliability of circuit breaker higher.

When the installation in this embodiment, when the bottom of the contact 4 that sets up on bridge type contact 3 and the top contact of spacing muscle 24, the swing range of bridge type contact 3 is great this moment, easily finds that contact 4 does not install in contact tank 2, has reduced because of contact 4 does not carry out work at the operating position and leads to the circuit breaker phenomenon of burning out.

After the installation in this embodiment, when horizontal pulling force appears, spacing muscle 24 is close to the vertical face of contact groove 2 and the spacing cooperation in one side that arc breach 21 was kept away from to contact 4, and the effectual contact 4 that has prevented breaks away from out of contact groove 2 outside, makes the reliability of circuit breaker higher.

In the present embodiment, the first inclined surface 22 and the second inclined surface 23 form a "V" shaped structure, so that the contact area between the contact groove 2 and the contact point 4 is increased, and the amount of heat generation is reduced.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. A contact structure, comprising: bridge type contact, female arranging, the one end bottom of bridge type contact is provided with the contact, the contact with bridge type contact structure as an organic whole, female arranging is last to be provided with the contact groove, female arranging is last still to be provided with limit structure, the contact is located the contact groove and pass through limit structure with the contact groove is followed female arranging's spacing cooperation of axial.

2. A contact structure according to claim 1, wherein said contact groove comprises two inclined surfaces, a first inclined surface and a second inclined surface, the bottom of said first inclined surface is connected with the bottom of said second inclined surface, and both of them form a "V" shape.

3. The contact structure according to claim 2, wherein the limiting structure is a limiting rib, the limiting rib is connected to the notch of the contact groove, and the limiting rib and the busbar are integrated.

4. A contact structure according to claim 3, wherein the bottom of the side of the limiting rib near the contact groove is connected to the top end of the first inclined surface.

5. A contact structure according to claim 4, wherein the limiting rib is arranged to be a vertical surface near the contact groove.

6. The contact structure according to claim 5, wherein an arc-shaped notch is further formed in the busbar, an opening of the arc-shaped notch is transversely formed, and the bottom end of the arc-shaped notch is connected with the top end of the second inclined plane.

7. A contact construction according to claim 6, wherein the bottom ends of the contact points are arranged in an arc-shaped configuration.

8. The contact structure according to claim 6, wherein the bottom end of the contact is in contact with the first inclined surface and the second inclined surface, and one side of the contact, which is far away from the arc-shaped notch, is in transverse limit fit with the vertical surface of the limit rib.