Switch cabinet

Abstract

The invention relates to a switch cabinet. The switch cabinet comprises a cabinet body, a bus chamber, a circuit breaker chamber and a cable chamber are arranged in the cabinet body, the bus chamber and the circuit breaker chamber are separated through an upper partition plate, and an upper isolation static contact is arranged on the upper partition plate; the circuit breaker chamber and the cable chamber are separated through a lower partition plate, a lower isolation static contact is arranged on the lower partition plate, a solid-sealed polar pole is arranged in the circuit breaker chamber and provided with an upper wire outlet seat and a lower wire outlet seat, an upper isolation moving contact is installed on the upper wire outlet seat, a lower isolation moving contact is installed on the lower wire outlet seat, the upper isolation moving contact and the lower isolation moving contact are both of a vertically-through hollow structure, the lower isolation static contact is provided with a lower communicating hole communicating an inner cavity of the lower isolation static contact with the cable chamber, the upper isolation static contact is provided with an upper communicating hole communicating an inner cavity of the upper isolation static contact with the bus chamber, and the wall surface of the bus chamber is provided with an exhaust hole communicated with the inside and outside of the bus chamber; and the switch cabinet also comprises a heat dissipation fan which is used for enabling external cold air to enter the inner cavity of the lower isolation static contact through the lower communication hole.

Description

technical field [0001] The invention relates to a switch cabinet and belongs to the technical field of power distribution equipment. Background technique [0002] At present, some switch cabinets are arranged vertically inside, that is, the three-phase main circuit is arranged along the depth direction of the cabinet. For example, a switchgear disclosed in the Chinese patent document with the authorized announcement number CN103683016B takes the direction of the larger size of the switchgear in the horizontal direction as the front and rear direction, and the switchgear includes a busbar room, a circuit breaker room and a cable The busbar room and the circuit breaker room are separated by an upper partition, and three upper isolation sleeves are arranged at intervals along the front and rear directions on the upper partition, and the upper isolation sleeve has an upper isolation static contact; the circuit breaker room and the cable room Separated by the lower partition, th...

AI Technical Summary

Problems solved by technology

At present, there is no reasonable and effective heat dissipation system for the switchgear with the above arrangement. If the heat cannot be dissipated in time, the temperature of the electrical contact parts will rise, which will affect the normal use of the switchgear.

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