CN201532914U

CN201532914U - Breaker bridge-shaped contact

Info

Publication number: CN201532914U
Application number: CN2009202352809U
Authority: CN
Inventors: 叶建新; 徐欢; 唐志军
Original assignee: CHANGSHU TONGRUN SWITCHGEAR FACTORY CO LTD
Current assignee: CHANGSHU TONGRUN SWITCHGEAR FACTORY CO LTD
Priority date: 2009-10-14
Filing date: 2009-10-14
Publication date: 2010-07-21
Anticipated expiration: 2019-10-14

Abstract

The utility model discloses a breaker bridge-shaped contact comprising a first row of contact pieces, a second row of contact pieces, rivets, a bracket and a spring which form an integral structure, wherein the first row of contact pieces and the second row of contact pieces are arranged at two ends of the bracket; the spring is arranged inside the bracket, and two ends of the spring respectively pass between the contact pieces on the first row of contact pieces and the second row of contact pieces and are fixedly arranged on the first row of contact pieces and the second row of contact pieces by the rivets; the first row of contact pieces and the second row of contact pieces are also provided with pin shafts leading the contact pieces to rotate. In the utility model, the contact pieces are added, and contact points are added when the bridge-shaped contact is connected with a connecting copper row; when current flows through the bridge-shaped contact, the heat productivity and the temperature rise are reduced; and in order to more effectively control the heat productivity of the contact, reduce the temperature rise and ensure that a breaker can be reliably operated, the contact pieces are made of copper.

Description

Bridge-shaped contact of breaker

Technical field

The utility model relates to a kind of bridge-shaped contact of breaker that electrical equipment is made the field.

Background technology

Make the field at electrical equipment, circuit breaker adopts bridge-shaped contact to be connected with drawer, the present bridge-shaped contact that uses on the market and when being connected the copper bar connection, because the contact point of bridge-shaped contact is less relatively, when on the contact system during through overcurrent, caloric value is bigger, and temperature rise is higher, has had a strong impact on the use of circuit breaker.

The utility model content

Technical problem to be solved in the utility model provides a kind of reliable, the bridge-shaped contact of breaker that can effectively control contact heating.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of bridge-shaped contact of breaker, comprise and constitute its integrally-built first row's contact chip, second row's contact chip, rivet, support and spring, first row's contact chip, second row's contact chip are made up of contact chip, and described first row's contact chip, second row's contact chip are arranged on the two ends of support; Described spring is arranged in the first row's contact chip and second support of arranging between the contact chip, the two ends of spring are passed respectively between first row's contact chip, second contact chip of arranging on the contact chip, are fixedly installed on first row's contact chip, the second row's contact chip by rivet; Also be provided with the bearing pin that can make its rotation on first row's contact chip, the second row's contact chip.

Two ends up and down at first row's contact chip, second row's contact chip are provided with pad, and are fixed on the contact chip by bearing pin.

On first row's contact chip, second row's contact chip, by two contact chips: go up contact chip and following contact chip and constitute one group, the space that last contact chip and the middle end that is provided with spring of following contact chip are passed.

Like this, the contact chip on first row's contact chip, the second row's contact chip just can be provided with many groups, has increased contact chip.

In order more effectively to control the caloric value of contact, reduce temperature rise, guarantee the reliability service of circuit breaker, the material of described contact chip is a copper.

Advantage of the present utility model is: increased contact chip, bridge-shaped contact increases contact point when being connected copper bar and connecting, and when on the contact during through overcurrent, reduces caloric value, reduces temperature rise.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is an end view of the present utility model.

Fig. 3 be among Fig. 2 along A-A to cutaway view.

Fig. 4 is a vertical view of the present utility model.

Fig. 5 is the mounting structure schematic diagram of spring of the present utility model and bearing pin.

Embodiment

As shown in Figure 1, a kind of bridge-shaped contact of breaker comprises constituting its integrally-built first row's contact chip 8, second row's contact chip 9, rivet 5, support 1 and spring 4 (as shown in Figure 3) that first row's contact chip 8, second row's contact chip 9 are arranged on the two ends of support 1.

Shown in Figure 2 is end view of the present utility model, and visible first row's contact chip 8 among the figure, second row's contact chip 9 are made up of contact chip, and first row's contact chip 8, second is arranged on the contact chip 9 and also is provided with the bearing pin 7 that can make its rotation.

As shown in Figure 3, described spring 4 is arranged in the first row's contact chip 8 and second support of arranging between the contact chip 91, the two ends of spring 4 are passed respectively between first row's contact chip 8, second contact chip of arranging on the contact chip 9, are fixedly installed on first row's contact chip 8, the second row's contact chip 9 by rivet 5.

On first row's contact chip 8, second row's contact chip 9, by two contact chips: go up contact chip 2 and following contact chip 3 constitutes one group, the space that last contact chip 2 and the following contact chip 3 middle ends that are provided with spring 4 are passed.

The utility model is provided with pad 6 at the two ends up and down of first row's contact chip 8, second row's contact chip 9, and is fixed on the contact chip by bearing pin 7.Shown in Figure 4 is vertical view of the present utility model, and first row's contact chip 8, second upper end of arranging contact chip 9 are provided with pad 6 as can be seen among the figure.

During installation, earlier spring 4 and bearing pin 7 are installed, its installation method as shown in Figure 5.With rivet 5 riveted joints, after having riveted, last contact chip 2 and following contact chip 3 should not have catching phenomenon then.

Like this, the contact chip on first row's contact chip 8, the second row's contact chip 9 just can be provided with many groups, has increased contact chip.In order more effectively to control the caloric value of contact, reduce temperature rise, guarantee the reliability service of circuit breaker, the material of described contact chip is a copper.

The foregoing description limits the utility model never in any form, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in the protection range of the present utility model.

Claims

1. bridge-shaped contact of breaker, comprise and constitute its integrally-built first row's contact chip (8), second row's contact chip (9), rivet (5), support (1) and spring (4), first row's contact chip (8), second row's contact chip (9) are made up of contact chip, it is characterized in that: described first row's contact chip (8), second row's contact chip (9) are arranged on the two ends of support (1); Described spring (4) is arranged in the first row's contact chip (8) and second support of arranging between the contact chip (9) (1), the two ends of spring (4) are passed respectively between first row's contact chip (8), second contact chip of arranging on the contact chip (9), are fixedly installed on first row's contact chip (8), the second row's contact chip (9) by rivet (5); Also be provided with the bearing pin (7) that can make its rotation on first row's contact chip (8), the second row's contact chip (9).

2. bridge-shaped contact of breaker according to claim 1 is characterized in that: the two ends up and down at first row's contact chip (8), second row's contact chip (9) are provided with pad (6), and are fixed on the contact chip by bearing pin (7).

3. bridge-shaped contact of breaker according to claim 1, it is characterized in that: on first row's contact chip (8), second row's contact chip (9), by two contact chips: go up one group of contact chip (2) and following contact chip (3) formation, last contact chip (2) and following contact chip (3) centre are provided with the space that the end of spring (4) is passed.

4. according to claim 1,2 or 3 described bridge-shaped contact of breaker, it is characterized in that: the material of described contact chip is a copper.