CN201048102Y

CN201048102Y - Stationary contact of ground switch

Info

Publication number: CN201048102Y
Application number: CNU2007200130354U
Authority: CN
Inventors: 毕新华; 张洪臣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-25
Filing date: 2007-06-25
Publication date: 2008-04-16
Anticipated expiration: 2017-06-25

Abstract

The utility model relates to a ground switch fixed contact, which is composed of a contact body made of red copper. The ground switch fixed contact is characterized in that the thickness of the cross section of the contact body is 4-6mm, and the middle transition place of the contact body is provided with a strengthening rib. Because the utility model has the current direction that a main bus-bar and a fixed contact and a vertical knife are earthed, the current capacity does not directly relate to the cross section of the fixed contact. While meeting the precondition of ensuring the electric performance and the mechanical performance to be the same, the thickness of the cross section of the fixed contact is changed from the original 10-12mm into 4-6mm, thus the cooper material can be reduced by about 50 percent, the consumption of the coloured metallic red copper is saved greatly, thereby lowering the production cost.

Description

The earthed switch fixed contact

Technical field

The utility model belongs to the appliance switch annex, particularly a kind of earthed switch fixed contact.

Background technology

The earthed switch fixed contact is mainly used in specifically being installed on the transducer on the interior earthed switch of high-tension switch cabinet.Existing earthed switch fixed contact is one and adopts red copper to make that its thickness is 10-12mm.The earthed switch fixed contact of this structure is to calculate ampacity according to the cross-sectional area of fixed contact, and in fact the sense of current is by main bus bar, fixed contact, upright cutter ground connection, thus ampacity and fixed contact cross-sectional area do not have direct relation.The tranverse sectional thickness of fixed contact is excessive, can only cause raw-material waste, increases production cost.

Summary of the invention

The purpose of this utility model is to solve the problems referred to above that prior art exists, and provides a kind of and is guaranteeing can to save raw material under the constant prerequisite of electric property and mechanical performance, the earthed switch fixed contact that reduces production costs.

The utility model is achieved in that the contact body that it is made by red copper constitutes, and its special character is: the tranverse sectional thickness of described contact body is 4-6mm, and the middle transition place of contact body is provided with reinforcement.

It is dull and stereotyped that above-mentioned earthed switch fixed contact, contact body launch the back, and the punching press of dull and stereotyped process bends moulding, is provided with pressing plate at the afterbody of contact body, and the pressing plate both sides are stuck in the contact body afterbody.

The utility model has the advantages that: because the sense of current is by main bus bar, fixed contact, upright cutter ground connection, so ampacity and fixed contact cross-sectional area do not have direct relation.Guaranteeing under the constant prerequisite of electric property and mechanical performance, changing the tranverse sectional thickness of fixed contact into 4-6mm by original 10-12mm, can reduce copper material about 50%, saving the consumption of non-ferrous metal red copper greatly, thereby reduced production costs.

Description of drawings

Fig. 1 is front view of the present utility model (corresponding embodiment 1);

Fig. 2 is the right view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is front view of the present utility model (corresponding embodiment 2);

Fig. 5 is the right view of Fig. 4;

Fig. 6 is the vertical view of Fig. 4;

Fig. 7 is Fig. 6 center platen right view;

Fig. 8 is that middle contact body is launched schematic diagram among Fig. 4;

Fig. 9 is the right view of Fig. 8.

Embodiment

Embodiment 1:

As shown in Figure 1-Figure 3, the utility model is made of the contact body 1 that adopts red copper to make, contact body 1 is through smart casting or draw moulding, the tranverse sectional thickness of described contact body 1 is 4-6mm, and the middle transition place of contact body 1 is provided with reinforcement 2, to strengthen the mechanical strength of fixed contact, prevent distortion.

Embodiment 2:

As Fig. 4-shown in Figure 9, the utility model is made of the contact body 1 that adopts red copper to make, and the tranverse sectional thickness of described contact body 1 is 4-6mm, and the middle transition place of contact body 1 is provided with reinforcement 2, it is flat board 101 that contact body 1 is launched the back, and dull and stereotyped 101 process punching presses bend moulding.Afterbody (fixed position) in contact body 1 is provided with pressing plate 3, and pressing plate 3 both sides are stuck in contact body 1 afterbody, in case contact body 1 afterbody distending when installing.

Claims

1. earthed switch fixed contact, the contact body of being made by red copper (1) constitutes, and it is characterized in that: the tranverse sectional thickness of described contact body (1) is 4-6mm, and the middle transition place of contact body (1) is provided with reinforcement (2).

2. earthed switch fixed contact according to claim 1, it is characterized in that: contact body (1) is launched the back and is dull and stereotyped (101), dull and stereotyped (101) bend moulding through punching press, are provided with pressing plate (3) at the afterbody of contact body (1), and pressing plate (3) both sides are stuck in contact body (1) afterbody.