CN202473620U - Copper and steel integrated static contact - Google Patents

Abstract

The utility model provides a copper and steel integrated static contact. The copper and steel integrated static contact comprises a contact main body and a steel bracket, wherein the contact main body and the steel bracket are cast together with precision. The copper and steel integrated static contact is characterized in that a hollow-out structure is arranged at the part of the steel bracket in the contact main body; or a gap or a raised edge is formed at the edge of the part of the steel bracket in the contact main body; or any two structures or three structures of the hollow-out structure, the gap and the raised edge are simultaneously arranged at the part of the steel bracket in the contact main body. Through the hollow-out structure, the gap and the raised edge, the contact main body and the steel bracket are firmly combined with each other; therefore, the copper and steel integrated static contact provided by the utility model has the advantages of more stable structure, much simpler machining procedures and more stable electric performance, and the service life of the copper and steel integrated static contact is obviously prolonged.

Description

Copper bearing steel all-in-one static contact

Technical field

The utility model belongs to the appliance switch annex, particularly a kind of copper bearing steel all-in-one static contact.

Background technology

Fixed contact is mainly used in specifically being installed on the transducer on the earthed switch in the high-tension switch cabinet.Existing fixed contact rear portion is that support, front portion are contact body, and front and rear is one and adopts copper material to process.Its integral body is copper material, add need mill man-hour, operations such as plane, press-bending, the production cycle is long, waste of raw materials is many, causes fixed contact production efficiency low, manufacturing cost is high.In CN201048090, proposed a kind of " separated static contact ", it is to be configured to propping up by contact body, and its special character is: described contact body is that split is connected with support, and support is a steel material.Because contact body is the red copper profile shapes, manufacturing procedure is many, so waste of material is big.This separated static contact concrete structure is divided into two kinds again, and a kind of is that support overlaps on contact body, connects through bolt when dispatching from the factory; Need after taking apart when the user uses busbar is connected with bolt with contact body, support three again; Complex operation, switching performance is bad, causes electric conductivity to reduce.Another kind of structure be contact body with support between dock the back welding, machining period is long, need the postorder processing, weld is easy to generate slag inclusion, dry joint, structure is insecure.

In order to improve the weak point of above-mentioned separated static contact; Copper bearing steel all-in-one static contact has been proposed among the CN201638694U; Being that described contact body and steel bracket are smart casts together; And be positioned at the contact body position at steel bracket and be provided with and blurt out, the blurting out back that stretches forms and inserts pawl, through blurting out and slotting pawl combines contact body and steel bracket securely.The fixed contact of this version useless red copper capable of using is processed, and manufacturing procedure is simple, under the prerequisite that does not change electric property, has reduced production cost.Yet the applicant is constantly finding that still there is following deficiency in this copper bearing steel all-in-one static contact in research and the production practices: 1, the version of steel bracket causes precision casting technology complicated, is not easy to processing; Because contact body and steel bracket junction thickness are limited, slotting pawl is difficult to play the effect that reinforcement is connected firmly.

Summary of the invention

The utility model technical problem to be solved provides the copper bearing steel all-in-one static contact that a kind of structure is firm more, be convenient to process, and its electric property is more stable, has significantly improved useful life.

The technical scheme of the utility model is: this copper bearing steel all-in-one static contact; Constitute by contact body and steel bracket; The smart casting of said contact body and steel bracket together; Its special character is: be positioned at the contact body position at steel bracket engraved structure is set; Or be positioned at edge, contact body position at steel bracket breach or nib be set, or be arranged in any two kinds of structures or three kinds of structures that the contact body position is provided with engraved structure, breach, nib simultaneously at steel bracket, through engraved structure, breach, nib with contact body and firm the combining of steel bracket.

[0007]The quantity of said breach is a plurality of.

The quantity of said nib is a plurality of.

Said nib extends to the steel bracket both sides.

And extend to said steel bracket both sides.

The beneficial effect of the utility model is: the steel bracket of this fixed contact is positioned at the contact body position and arranges engraved structure, breach or nib, can reinforce combining of contact body and steel bracket to a greater extent, and electric property is more stable, increases the service life.In addition, engraved structure, breach or nib all can be realized in the stamping procedure of bad plate of hair, need not to stretch etc., further simplify so manufacturing procedure is got back.Simultaneously, the contact body of the utility model is still smart casting with steel bracket and is in the same place, and then it can realize the regeneration of old and useless red copper tailing under the prerequisite that does not change electric property, practices thrift non-ferrous metal, reduces production costs.

Description of drawings

Fig. 1 is the structural representation of the utility model (corresponding embodiment 1);

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

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

Fig. 4 is the vertical view of steel bracket among Fig. 1;

Fig. 5 is the right view of steel bracket among Fig. 1;

Fig. 6 is the structural representation of the utility model (corresponding embodiment 2);

Fig. 7 is the vertical view of steel bracket among Fig. 6;

Fig. 8 is the right view of steel bracket among Fig. 6;

Fig. 9 is the structural representation of the utility model (corresponding embodiment 3);

Figure 10 is the vertical view of steel bracket among Fig. 9;

Figure 11 is the right view of steel bracket among Fig. 9;

Figure 12 is the structural representation of the utility model steel bracket (corresponding embodiment 4);

Figure 13 is the right view of Figure 12.

Sequence number explanation among the figure: 1-contact body, 2-steel bracket, 3-engraved structure, 4-nib, 5-breach.

Embodiment

Embodiment 1

Like Fig. 1～shown in Figure 5, this copper bearing steel all-in-one static contact is made up of contact body 1 and steel bracket 2, and contact body 1 and steel bracket 2 smart castings are together.Wherein, be positioned at contact body 1 position at steel bracket 2 engraved structure 3 evenly is set.

Embodiment 2

Like Fig. 6～shown in Figure 8, this copper bearing steel all-in-one static contact is made up of contact body 1 and steel bracket 2, and contact body 1 and steel bracket 2 smart castings are together.Be positioned at edge, contact body 1 position at steel bracket 2 a plurality of nibs 4 evenly are set, said nib 4 extends to steel bracket 2 both sides, is example with four nibs among the figure, and reality is not limited by present embodiment.

Embodiment 3

Like Fig. 9～shown in Figure 11, this copper bearing steel all-in-one static contact is made up of contact body 1 and steel bracket 2, and contact body 1 and steel bracket 2 smart castings are together.Being positioned at contact body 1 position at steel bracket 2 and being provided with a plurality of breach 5, is example with two among the figure, and reality is not limited by present embodiment.

Embodiment 4

Like Figure 12, shown in Figure 13, this copper bearing steel all-in-one static contact is made up of contact body 1 and steel bracket 2, contact body 1 and steel bracket 2 smart castings together.Be positioned at contact body 1 position at steel bracket 2 and be provided with engraved structure 3, nib 4 and breach 5 simultaneously.Also can in engraved structure 3, nib 4 and breach 5, select two kinds of versions to be arranged on the steel bracket 2.

Claims (4)

1. copper bearing steel all-in-one static contact; Constitute by contact body and steel bracket; The smart casting of said contact body and steel bracket together; It is characterized in that: be positioned at the contact body position at steel bracket engraved structure is set, or be positioned at edge, contact body position at steel bracket breach or nib are set, or be arranged in any two kinds of structures or three kinds of structures that the contact body position is provided with engraved structure, breach, nib simultaneously at steel bracket.

2. copper bearing steel all-in-one static contact according to claim 1 is characterized in that: the quantity of said breach is a plurality of.

3. copper bearing steel all-in-one static contact according to claim 1 is characterized in that: the quantity of said nib is a plurality of.

4. copper bearing steel all-in-one static contact according to claim 3 is characterized in that: said nib extends to the steel bracket both sides.

Images