Combined power distribution cabinet

Abstract

The invention provides a combined power distribution cabinet, which comprises a cabinet body, an air supply box and a cooler. An installation back plate is arranged in the cabinet body; the installation back plate is attached on the inner rear side wall in the cabinet body; and the installation back plate is provided with an automatic tripping monitoring device, a circuit breaker, a line concentration area, a temperature sensor and a PLC. The circuit breaker is connected with a bus and the automatic tripping monitoring device; the temperature sensor is connected with the PLC; a bottom plate ofthe cabinet body is provided with vent holes; the air supply box is arranged at the bottom of the cabinet body, and the air supply box is internally provided with a motor; the motor is in transversetransmission connection with a rotating shaft; the rotating shaft is axially provided with a plurality of cabinet bottom fan blades; and the cooler is arranged at the top of the cabinet body and extends into the cabinet body. No obvious partition plate structure is arranged in the cabinet, so that the permeability is high; and comprehensive cooling of the combined power distribution cabinet can beachieved in combination with a cooling liquid type air supply system, and thus normal operation of power equipment in the power distribution cabinet is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to a combined power distribution cabinet. Background technique [0002] Most of the common power distribution cabinets on the market are closed switch cabinets. The electrical components such as switches, protection, monitoring and control in the closed switch cabinets are all installed in a closed shell made of steel or insulating materials. The closed switchgear has good sealing performance, avoids the intrusion of small animals, and has high safety against electric shock, but due to the good sealing, its heat dissipation is greatly reduced, especially in hot summer, when the external temperature is high, and the closed switchgear The heat generated by each component cannot be dissipated, and it is easy to cause damage to the components due to high temperature, affecting normal use. In order to solve the problem of heat dissipation, fans are installed in some ...

AI Technical Summary

Problems solved by technology

The closed switchgear has good sealing performance, avoids the intrusion of small animals, and has high safety against electric shock, but due to the good sealing, its heat dissipation is greatly reduced, especially in hot summer, when the external temperature is high, and the closed switchgear The heat generated by each component cannot be dissipated, and it is easy to cause damage to the components due to high temperature, affecting normal use

In order to solve the problem of heat dissipation, fans are installed in some power distribution cabinets to cool down. However, in order to facilitate the installation of components and cable access in the power distribution cabinets, there are often partitions, and the wind direction of the fans cannot be effectively circulated in the cabinets. , making it difficult for the airflow driven by the fan to reach each component

The existing power distribution cabinet cannot realize effective heat dissipation in the cabinet while combining various power monitoring components

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