CN102263378A

CN102263378A - 4,000A contact box

Info

Publication number: CN102263378A
Application number: CN2010101831362A
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: 2011-11-30

Abstract

The invention discloses a 4,000A contact box, which comprises a contact insulating sleeve, a radiating fin and a radiating fin shield. The end part of the contact insulating sleeve is provided with a mounting plate. A radiator mounting opening and an air guide opening are reserved on the top wall of the contact insulating sleeve. A bottom plate of the radiating fin is arranged at the radiator mounting opening. The radiating fin shield and the contact insulating sleeve form an integral structure molded by once-pouring epoxy resin. A radiation channel is formed between the top wall of the contact insulating sleeve and the radiating fin shield. A hot air outlet of the radiation channel and a line inlet of the contact insulating sleeve are positioned on the same side. When 4,000A current passes through a contact, the copper contact is heated, heat is rapidly dissipated by the radiating fin and discharged by the radiation channel, and simultaneously, hot air in the box is guided into the radiation channel through the air guide opening by an induced draft fan arranged in a switch or a gearbox and is discharged. The radiating fin is arranged and a good radiation channel is formed in the 4,000A contact box, so the 4,000A contact box has high radiation performance, improves the overall performance of a switch cabinet and prolongs the service life of the switch cabinet.

Description

A kind of 4000A contact box

Technical field

The present invention relates to a kind of switch cubicle or become the case parts, specifically relate 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.

Summary of the invention

Purpose of the present invention 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 present invention 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 invention.

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.