Sealed high-low voltage power distribution cabinet

Abstract

The invention discloses a sealed high-low voltage power distribution cabinet. The cabinet comprises a cabinet body, a heat dissipation fan is installed at the top of the cabinet body, the heat dissipation fan sucks external air into an installation cavity in the cabinet body and exhausts the external air from an exhaust port in the bottom of the cabinet body, the cabinet body is provided with a cabinet door, a hollow silica gel sealing ring is embedded in one surface, right opposite to the cabinet door, of the cabinet body, and after the cabinet door is closed, the cabinet door is in contact sealing with the slightly convex silica gel sealing ring; the power distribution cabinet not only has a very good dustproof effect, but also does not need to solve the problem of dust collection, the collected dust is used for filling the hollow silica gel sealing ring, the internal solid degree of the sealing ring is increased, thermal deformation of the sealing ring can be effectively prevented in the later period, the sealing effect is improved, and the sealing time is prolonged.

Description

technical field [0001] The invention relates to the field of power distribution cabinets, in particular to a sealed high and low voltage power distribution cabinet. Background technique [0002] Power distribution cabinets are commonly used power equipment and are used in many occasions. Since the power distribution cabinet is an electrical device, it needs to have very good dustproof and sealing capabilities: [0003] The importance of dust protection: [0004] 1. It is to prevent some exposed components in the cabinet from being covered by dust. If it is covered by dust and then absorbs moisture in the air, it will corrode some exposed components, which may lead to reduced insulation, short circuit, grounding, etc. for a long time malfunction, and may even result in the risk of electric shock. [0005] 2. Excessive dust coverage will lead to high electrostatic current in the case of humid air, which will also cause the risk of electric shock during operation, and excess...

AI Technical Summary

Problems solved by technology

[0004] 1. It is to prevent some exposed components in the cabinet from being covered by dust. If it is covered by dust and then absorbs moisture in the air, it will corrode some exposed components, which may lead to reduced insulation, short circuit, grounding, etc. for a long time malfunction, which may even result in the risk of electric shock

[0005] 2. Excessive dust coverage will lead to high electrostatic current in the case of humid air, which will also cause the risk of electric shock during operation, and excessive dust coverage will corrode the components of the box, which will also greatly Shorten the service life of components

However, the adsorbed dust will increase as time goes by, so it needs to be cleaned regularly, otherwise there will still be dust entering, which will also affect the effect of electrostatic dust removal

[0007] In addition, a sealing ring needs to be installed on the cabinet door. This sealing ring will age after a long time of use, and will also produce thermal deformation during use, resulting in poor sealing performance of the sealing ring. Aging is a common problem of all sealing rings, and thermal deformation will also cause The sealing performance of the sealing ring becomes poor. Since the sealing ring is an elastic part as a whole, it is prone to deformation and cannot be restored. The product has poor shaping ability and cannot maintain its shape for a long time.

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