CN214254755U

CN214254755U - Current short circuit tool

Info

Publication number: CN214254755U
Application number: CN202120666488.7U
Authority: CN
Inventors: 陶勇; 卢汪节; 张庞; 都伟杰; 乔惠; 陈媛媛; 杨士东
Original assignee: Anhui Hedian Chint Electrical Complete Equipment Manufacturing Co ltd; Hefei Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Anhui Hedian Chint Electrical Complete Equipment Manufacturing Co ltd; Hefei Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-09-21
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a current shorting tool, comprising a shorting box electrically connected and a plurality of puncturing boxes. The shorting box comprises a shorting box body, a shorting guide block placed in the shorting box body, and a plurality of penetrating shorting boxes. The box body faces the wire tube of the short-circuiting guide block; the puncture box includes a puncture box body, a puncture component placed in the puncture box body, and a short-connection wire electrically connected to the puncture component and one end of which is placed outside the puncture box body. The wire passes through the wire tube and conducts electrical conduction with the short-circuit guide block, and the puncture component punctures and conducts the short-circuit wire of the short-circuit device; the short-circuit guide block is provided with a number of short-circuit guide holes whose axes coincide with the wire tube, and the short-circuit guide holes A compression nut is connected to the upper part, and the short-circuit connection wire is placed in the short-circuit guide hole and pressed by the compression nut to be electrically connected to the short-circuit conductor block; the current short-circuit tool of the utility model does not need to be connected twice during the short-circuit. The device terminals are directly short-circuited, which is fast and has a high short-circuit rate.

Description

Current short circuit tool

Technical Field

The utility model belongs to the electric power system field, more specifically the utility model relates to a current short circuit instrument that says so.

Background

In the process of servicing secondary equipment of an electrical power system, each set of live current terminals may need to be shorted to ensure that no current flows into the secondary equipment, and then the contact block connecting the equipment side and the power supply side may be disconnected to completely isolate the equipment side from the power supply side for inspection of the equipment using an inspection instrument.

Among the prior art, among the electric current short circuit instrument, the short circuit operation is often being connected secondary equipment's terminal and short circuit instrument electricity, and the short circuit operation is inconvenient, and the short circuit is inefficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric current short circuit instrument need not carry out direct short circuit operation with the secondary equipment terminal in the short circuit, and the short circuit operation is quick, and the short circuit rate is high.

The utility model provides a current short circuit tool, including electrically connected short circuit box and a plurality of puncture boxes, short circuit box includes the short circuit box body, arranges in short circuit guide block and a plurality of spool that pass the short circuit box body and towards the short circuit guide block in the short circuit box body; the puncture box comprises a puncture box body, a puncture assembly arranged in the puncture box body and a short-circuit connecting wire which is electrically connected with the puncture assembly and one end of which is arranged outside the puncture box body, the short-circuit connecting wire penetrates through the wire tube and is electrically communicated with the short-circuit guide block, and the puncture assembly punctures and conducts a short-circuit wire of short-circuit equipment;

be provided with on the short circuit guide block a plurality of axes with the short circuit guide hole of spool coincidence, be connected with gland nut on the short circuit guide hole, the short circuit line is arranged in the short circuit guide hole and quilt gland nut compress tightly with short circuit guide block electric conductance.

Preferably, a wire fixing block is arranged in the short circuit box body and is arranged on the outer side of the short circuit guide block to fix the wire pipe.

Preferably, spool internal diameter and short circuit guide hole internal diameter all with the short circuit line external diameter suits.

Preferably, be provided with the short circuit lid on the short circuit box body, the short circuit lid can be dismantled through countersunk screw and be fixed in on the short circuit box body, short circuit guide block and gland nut all enclosed in the short circuit box body.

Preferably, the puncture assembly comprises two puncture pieces which are arranged in parallel, one end of each puncture piece is provided with a serrated puncture part, the other end of each puncture piece is connected with a first conducting strip, the first conducting strip is connected with a second conducting strip, and the short circuit connecting line is electrically connected with the second conducting strip.

Preferably, the first conducting strip and two puncture pieces are integrally formed, the material is copper, and the short circuit connecting line and the first conducting strip are detachably arranged on the second conducting strip through locking screws respectively.

Preferably, the puncture sheet is a copper sheet, and silver is plated at the puncture position.

Preferably, a puncture groove is formed in the puncture box body, the puncture groove is arranged at the position of the puncture part, and the puncture groove is matched with the short connecting wire.

Preferably, a puncture box cover is detachably fixed on the puncture box body through screws, and the puncture assembly is sealed in the puncture box body.

The utility model discloses technical scheme's a current short circuit instrument's beneficial effect is:

1. through being connected puncture box and short circuit box electricity, the short-circuit line of short circuit secondary side equipment realizes the electric conductance with puncture box puncture, has effectually avoided directly carrying out the operation of short circuit with short-circuit line and terminal box in the short circuit operation, short circuit easy operation, and the short circuit is quick, has avoided electrically conductive fixed waiting operation in the short circuit.

2. The puncture assembly has high conductivity and strong puncture capability, and the short-circuit rate is improved.

Drawings

FIG. 1 is a schematic view of a short-circuit tool according to the present invention in a short-circuit operation state,

figure 2 is a schematic view of the internal structure of figure 1,

figure 3 is a schematic view of the structure of the puncture box,

fig. 4 is a schematic diagram of a short-circuit box structure.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.

As shown in fig. 1 and fig. 2, the utility model discloses technical scheme a current short circuit instrument, including short circuit box 1 and a plurality of puncture box 2 of electricity connection. The shorting line 100 of the shorting device is punctured inside the puncture box 2 and is finally connected to the shorting box by a conductive device or the like. A plurality of binding post on the short circuit equipment all are connected with the short circuit box electricity, have realized the short circuit of short circuit equipment promptly. According to the prior art, the number of the wires on the secondary side equipment of the transformer is generally four or seven, the puncture boxes 2 are generally four or seven, and the positions, which are in short connection with the puncture boxes 2, on the short connection box 1 are generally four or seven.

As shown in fig. 4, the shorting box 1 includes a shorting box body 11, a shorting guide 13 disposed in the shorting box body 11, and a plurality of conduits 12 passing through the shorting box body 11 and facing the shorting guide 13. Still be provided with solidus piece 14 in the short circuit box body 11, solidus piece 14 is arranged in short circuit guide block 13 outside and is realized fixing spool 12. The short-circuit wire 22 is prevented from sliding, moving or rotating in the short-circuit process, and the short-circuit wire 22 and the short-circuit guide block 13 are prevented from sliding or falling off. The inner diameter of the conduit 12 and the inner diameter of the short circuit guide hole 130 are both adapted to the outer diameter of the short circuit wire 22. So that the shorting line 22 will not move or slide in the short circuit, and normal operation of the short circuit is ensured.

As shown in fig. 3, the puncture cassette 2 includes a puncture cassette body 21, a puncture set disposed in the puncture cassette body 21, and a short connection line 22 electrically connected to the puncture set and having one end disposed outside the puncture cassette body 21. The shorting connector 22 extends through the conduit 12 and is in electrical communication with the shorting guide 13, and the puncture assembly punctures a shorting device shorting connector 100. During short circuit, firstly, the short circuit connecting wire 22 penetrates through the wire tube 12 and is electrically communicated and fixed with the short circuit guide block 13, then the short circuit wire 100 and the puncture group puncture damage, the short circuit of the short circuit wire 100 and the short circuit guide block 13 is realized, the operation is simple and quick, and the problem of direct short circuit operation of the short circuit wire 100 and the puncture guide block 13 is avoided. The short circuit guide block 13 is provided with a plurality of short circuit guide holes 13 with the axes coinciding with the line tubes 12, the short circuit guide holes 13 are connected with compression nuts, and the short circuit connecting line 22 is arranged in the short circuit guide holes 130 and is compressed by the compression nuts to be electrically communicated with the short circuit guide block 13. Based on above-mentioned technical scheme, penetrate the spool 12 with short circuit line 22 in and compress tightly on the short circuit guide hole 130 of puncture guide block 13 through gland nut, realize the short circuit, the operation baldric is quick, short circuit connection 22 is compressed tightly, avoids taking place the scheduling problem that drops.

As fig. 4, be provided with short circuit lid 15 on the short circuit box body 11, short circuit lid 15 can be dismantled through countersunk screw and be fixed in on the short circuit box body 11, and short circuit guide block 13 and gland nut are all sealed in short circuit box body 11, and the problem of being touched after avoiding gland nut to take electricity, the security performance is high.

As shown in fig. 3, the puncturing assembly includes two puncturing sheets 23 arranged in parallel, one end of each puncturing sheet 23 is provided with a saw-toothed puncturing portion 231, the other end of each puncturing sheet 23 is connected with a first conductive sheet 24, the first conductive sheet 24 is connected with a second conductive sheet 25, and the short circuit connecting line 22 is electrically connected with the second conductive sheet 25. The first conductive strip increases the conductive area to ensure electrical continuity between shorting link 22 and shorting link 100. The first conductive sheet 24 and the two piercing sheets 24 are integrally formed, and the material is copper. The short circuit connecting line 22 and the first conducting strip 24 are detachably arranged on the second conducting strip 25 through locking screws respectively, so that electric conduction is realized. The puncture sheet 23 is a copper sheet, and silver is plated at the position of the puncture part 231, so that the conductive capability of the puncture sheet 23 is effectively improved.

As shown in fig. 3, the puncture case body 21 is provided with a puncture groove 23, the puncture groove 23 is disposed at the position of the puncture portion 231, and the puncture groove 23 is adapted to the shorting wire 100, so that the puncture portion 231 can smoothly puncture the insulating layer outside the shorting wire 100 during puncturing, thereby achieving electrical conduction. The puncture box body 21 is detachably fixed with a puncture box cover 27 through screws, and the puncture assembly is sealed in the puncture box body 11, so that the safety is ensured, and meanwhile, the puncture operation is also convenient.

In the technical scheme, through the design of the structure of the puncture box 2, the secondary current short-circuit rate reaches more than 60%, the overall withstand voltage of the short-circuit equipment in the short circuit is not lower than 400V, the tensile resistance of a short-circuit connecting line of the short circuit is not less than 100N, and the problems that the short-circuit connecting line deforms and the like are avoided. This technical scheme's electric current short circuit instrument can used repeatedly many times, and the general fault location that appears can continue to use after changing the threading piece at the puncture piece.

The technical solution of the present invention is to provide an improved method for manufacturing a semiconductor device, which is characterized in that the method is not limited by the above-mentioned method, and the method is not substantially improved by the method and the device, or the method and the device are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. A current short-circuit tool, characterized in that it comprises a short-circuit box and several puncture boxes that are electrically connected, and the short-circuit box comprises a short-circuit box body, a short-circuit guide block placed in the short-circuit box body and a plurality of wire tubes passing through the shorting box body and facing the shorting guide block; the puncture box includes a puncture box body, a puncture component placed in the puncture box body, and one end electrically connected to the puncture component. A short-circuit connection line placed outside the puncture box body, the short-circuit connection line passes through the wire tube and is electrically connected to the short-circuit lead block, and the puncture component punctures and conducts the short circuit of the short-circuit device. wiring;

The short-circuit guide block is provided with a number of short-circuit guide holes whose axes coincide with the wire tube, a compression nut is connected to the short-circuit guide holes, and the short-circuit connection wires are placed in the short-circuit guide holes. inside and is pressed by the compression nut and electrically connected to the short-circuit lead block.

2 . The current shorting tool according to claim 1 , wherein a wire fixing block is arranged in the shorting box body, and the wire fixing block is placed outside the shorting guide block to realize the wire pipe. 3 . fixed.

3 . The current shorting tool according to claim 1 , wherein the inner diameter of the wire tube and the inner diameter of the shorting guide hole are compatible with the outer diameter of the shorting wire. 4 .

4 . The current shorting tool according to claim 1 , wherein a shorting box cover is provided on the shorting box body, and the shorting box cover is detachably fixed to the On the short-circuit box body, the short-circuit guide block and the compression nut are both enclosed in the short-circuit box body.

5 . The current shorting tool according to claim 1 , wherein the piercing assembly comprises two piercing sheets arranged in parallel, one end of the two piercing sheets is provided with a serrated piercing part, and the other end is connected with A first conductive sheet, a second conductive sheet is connected to the first conductive sheet, and the short connection line is electrically connected to the second conductive sheet.

6 . The current short-circuiting tool according to claim 5 , wherein the first conductive sheet and the two piercing sheets are integrally formed, and the material is copper, and the short-circuit connection wire and the first conductive sheet are made of copper. 7 . A conductive sheet is detachably placed on the second conductive sheet through locking screws, respectively.

7 . The current short-circuiting tool according to claim 5 , wherein the piercing piece is a copper piece, and the piercing portion is plated with silver. 8 .

8 . The current shorting tool according to claim 5 , wherein a puncture groove is provided in the puncture box, the puncture groove is placed at the position of the puncture part, and the puncture groove and the short Wiring is compatible.

9 . The current shorting tool according to claim 1 , wherein a puncture box cover is detachably fixed on the puncture box body by means of screws, and the puncture assembly is enclosed in the puncture box body. 10 .