Positive-pressure ventilating outdoor cabinet

Abstract

The invention discloses a positive-pressure ventilating outdoor cabinet which has relatively high dustproof function and waterproof function, thereby facilitating replacement and cleaning of a second filtering device. The positive-pressure ventilating outdoor cabinet comprises a cabinet body with a cabinet door. The cabinet body is internally provided with an area for accommodating a plurality of equipment modules. The cabinet door of the cabinet body is provided with an air inlet. The air inlet outer cover of the cabinet body is provided with a cabinet air inlet cover. The inside air inlet of the cabinet door is provided with a first filtering device and a fan assembly which are fixed relative to the cabinet door, wherein the first filtering device and the fan assembly are successively arranged in an air inlet direction. The upper position in the cabinet body is provided with an air outlet pipe. Furthermore the air outlet end of the air outlet pipe is arranged on one surface of the cabinet body, wherein the surface of the cabinet body faces the cabinet door equipped side of the cabinet body. The air inlet end of the air outlet pipe faces an area for accommodating a plurality of equipment modules in the cabinet body. The second filtering device is inserted into the cabinet body from the cabinet door equipped side to the air outlet end equipped side. The second filtering device covers the air inlet end of the air outlet pipe.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a positive pressure ventilation outdoor cabinet. Background technique [0002] Direct ventilation air cooling is widely used in outdoor cabinets, and its heat dissipation system has a simple structure and high heat dissipation efficiency. Due to the scattered positions of the heat loads in the outdoor cabinet and the different air duct directions of the electronic modules, fans are usually used to take away the heat in the outdoor cabinet with positive pressure ventilation. Harmful substances such as dust particles from the outside can easily enter the internal environment through the gaps in the cabinet, which will endanger the reliable operation of the electronic modules in the outdoor cabinet. [0003] In order to solve the problem that the outdoor cabinets are easy to enter the dust through the gaps of the cabinets, in the prior art, fans are used to blow air in...

AI Technical Summary

Problems solved by technology

However, the front-forward and front-out arrangement method is adopted, and the air inlet and outlet filters are arranged on the cabinet door, which occupies a large installation space, and the hot and cold air flows in and out at the front, which is prone to the problem of short circuit of the air circuit; Outlet layout, the air outlet filter is usually installed at the rear, and the door needs to be opened at the rear of the cabinet to maintain the air outlet filter, thus destroying the airtightness of the cabinet, increasing the risk of water and dust entering through the gap in the cabinet door, and greatly increasing cabinet cost

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