Electric cabinet with efficient heat dissipation labyrinth air duct

Abstract

The invention discloses an electric cabinet with an efficient radiating labyrinth type air channel. The electric cabinet comprises a cabinet body, an electric appliance mounting plate and multiple radiators, wherein a transformer chamber used for mounting a transformer is arranged at the lower part of the cabinet body; the electric appliance mounting plate is arranged on the inner side of the cabinet body; a box-shaped channel is formed between the electric appliance mounting plate and the cabinet body; the bottom of the box-shaped channel is communicated with the transformer chamber to form a main air channel; the multiple radiators are distributed on one side, opposite to the box-shaped channel, of the electric appliance mounting plate; an independent secondary air channel is formed in each radiator separately; the air outlet of each secondary air channel is communicated with the main air channel; the air inlet of each secondary air channel is communicated with an isolation chamber; and the isolation chamber is communicated with the outside of the cabinet, and separated from the main air channel in a sealing manner. According to the electric cabinet with the structure, due to the labyrinth type air channel structure, one independent secondary air channel is distributed for each radiator and each heating unit, so that contradictions among the sealing performance, the thermal radiation, the volume and the cost of the conventional electric cabinet structure is solved; and therefore, the electric cabinet provided by the invention is compact in structure, relatively low in cost, and has good radiating performance and sealing performance as well.

Description

technical field [0001] The invention relates to the field of electrical control cabinets, in particular to an electric cabinet with a labyrinth air duct for high-efficiency heat dissipation. Background technique [0002] As a kind of electronic equipment commonly used in the mechanical field, electrical control cabinets need to meet two important performances in addition to electromagnetic compatibility and other performances in order to work reliably: one is required to have environmental protection performance, including dustproof, anti-corrosion, Moisture-proof, etc., so it must have good airtightness; second, it is required to have a stable and reliable thermal environment, which can control the temperature of the equipment within the allowable range, so it must have good heat dissipation capacity. The electric cabinet with good airtightness often has insufficient heat dissipation; while the electric cabinet with good heat dissipation is generally poor in airtightness. ...

AI Technical Summary

Problems solved by technology

The specific performance is: there is a contradiction between the volume and heat exchange capacity of the heat exchanger, the heat exchange capacity is small, the heat exchange capacity is low; the heat exchange capacity is strong, the volume is large, so the volume of the electric cabinet is affected; and the price of the air conditioner is high , the economy is not good, usually do not use

[0004] The traditional electric cabinet structure is difficult to solve the contradiction between sealing, heat dissipation, volume and cost. Therefore, it is an urgent need to design a new type of electric cabinet with high-efficiency heat dissipation, high sealing, low cost and compact size.

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