CN201656263U

CN201656263U - 4000A contact box

Info

Publication number: CN201656263U
Application number: CN2010202035981U
Authority: CN
Inventors: 冯文伶; 关振哲
Original assignee: SHENYANG FEICHI ELECTRICAL EQUIPMENT CO Ltd
Current assignee: SHENYANG FEICHI ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2010-05-26
Filing date: 2010-05-26
Publication date: 2010-11-24
Anticipated expiration: 2020-05-26

Abstract

The utility model discloses a 4000A contact box, which comprises a contact insulating sleeve, radiating fins and a radiating fin cover, wherein the end part of the contact insulating sleeve is provided with a mounting plate, the top wall of the contact insulating sleeve is provided with a radiator mounting port and an air guide port, a bottom plate of the radiating fins is arranged at the radiator mounting port, and the radiating fin cover and the contact insulating sleeve have an integral structure cast by epoxy resin at one step; a radiating passage is formed between the top wall of the contact insulating sleeve and the radiating fin cover, and a hot air outlet of the radiating passage and a wire inlet of the contact insulating sleeve are positioned on the same side; and when 4000A current passes through a contact, the copper contact emits heat, the heat is quickly dissipated through the radiating fins and discharged by the radiating passage, and meanwhile, the hot air in the box is guided into the radiating passage through the air guide port by a draught fan arranged in a switch or a variable box and exhausted. Because the radiating fins are arranged in the contact box and the good radiating passage is formed, the contact box has good heat dissipation performance and improves the integral performance and service life of a switch cabinet.

Description

A kind of 4000A contact box

Technical field

The utility model relates to a kind of switch cubicle or becomes the case parts, specifically relates to a kind of contact box.

Background technology

Switch cubicle is provided with at least one contact, it is conductor, a stationary contact as current transformer or voltage transformer is first-class, contact box is contained on the contact, when having big electric current to pass through on the contact, as the 4000A electric current, contact can generate heat, and the heat that produces owing to contact can not distribute from contact box inside soon, thereby makes the heat of assembling in the contact box increasing, easily cause the contact oxidation, increase resistance, and then produce bigger heat, cause insulation system to destroy, cause short circuit, reduced the useful life and the security performance of equipment.

The utility model content

The purpose of this utility model is the problem at prior art contact box weak heat-dissipating, provides a kind of heat dispersion good contact box.

The technical scheme that adopts is:

A kind of 4000A contact box comprises the contact insulating sleeve, and this contact insulating sleeve end is provided with installation panel, on the madial wall of contact insulating sleeve end a plurality of skirts of climbing is set, and its technical essential is:

On the roof of contact insulating sleeve, be equiped with fin; Offer air guide port on the roof of this contact insulating sleeve, this air guide port is positioned at the fin inboard;

Above-mentioned fin is provided with insulating cover, and this insulating cover and contact insulating sleeve are one-time formed overall structure, the inner heat dissipation channel that forms of insulating cover, and the heat dissipation channel outlet is positioned at the same side with the incoming line of contact box.

Because the utility model is built-in with fin, and forms good heat dissipation channel, therefore has good performance of heat dissipation, the heat that contact produces can be shed rapidly, keep contact to be in the works fine environment, thereby avoid short circuit accident to take place, improved switch cubicle overall performance and useful life.

Description of drawings

Fig. 1 is a front view of the present utility model.

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

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

Fig. 4 is the A-A view of Fig. 1.

Embodiment

A kind of 4000A contact box comprises contact insulating sleeve 1, fin 2 and radiating fin cover 3; The end of contact insulating sleeve 1 is provided with mounting panel 4, on the roof 7 of contact insulating sleeve 1, offer radiator installing port 5 and air guide port 6, the base plate of fin 2 is installed in radiator installing port 5 places, and radiating fin cover 3 and contact insulating sleeve 1 are the overall structure by the epoxy resin one-time cast-forming; Form heat dissipation channel 8 between the roof 7 of contact insulating sleeve 1 and the radiating fin cover 3, the heat outlet 9 of heat dissipation channel 8 is positioned at the same side with the incoming line 10 of contact insulating sleeve.

When contact 4000A electric current passes through, the copper contact heating, heat dispels the heat rapidly through fin, and discharges through heat dissipation channel, and hot gas is entered heat dissipation channel 8 with hot blast through air guide port 6 and is discharged by the induced draft fan that is installed in switch or the change case in the box simultaneously.

Claims

1. a 4000A contact box comprises contact insulating sleeve (1), fin (2) and radiating fin cover (3); The end of contact insulating sleeve (1) is provided with mounting panel (4), it is characterized in that on the roof (7) of contact insulating sleeve (1), offering radiator installing port (5) and air guide port (6), the base plate of fin (2) is installed in radiator installing port (5) and locates, and radiating fin cover (3) and contact insulating sleeve (1) are the overall structure by the epoxy resin one-time cast-forming; Form heat dissipation channel (8) between the roof (7) of contact insulating sleeve (1) and the radiating fin cover (3), the heat outlet (9) of heat dissipation channel (8) is positioned at the same side with the incoming line (10) of contact insulating sleeve.