Integrated fresh air fan

Abstract

The invention discloses an integrated fresh air fan which comprises a shell, wherein the shell is provided with an outdoor air inlet, an outdoor air outlet, an indoor air inlet and an indoor air outlet, the outdoor air inlet and the outdoor air outlet are provided with valves for controlling the on and off, the interior of the shell is further provided with a first fan, a second fan and a filter unit, outdoor air is sucked in by the first fan through the outdoor air inlet and is sent to the filter unit, and the output end of the filter unit is respectively connected to the indoor air outlet and the outdoor air outlet; indoor air is sucked in by the second fan through the indoor air inlet and is respectively sent to the indoor air outlet and the outdoor air outlet. According to the integrated fresh air fan, indoor and outdoor ventilation circulation and single indoor air circulation are realized by adopting the rotation of valve rotating plates; outdoor fresh air can be led in, and indoor air can also be purified; the integrated fresh air fan is simple in structure, light in weight, simple and convenient to install and operate, low in cost, high in efficiency, saved in space and convenient to maintain and replace.

Description

technical field [0001] The invention relates to an indoor and outdoor ventilation device, in particular to an integrated fresh air fan. Background technique [0002] The fresh air system is based on the principle that fresh air is sent to the room by special equipment on one side of the closed room, and then discharged from the other side by special equipment to the outside. The principle of "fresh air flow field" will be formed indoors, so as to meet the requirements of indoor fresh air exchange. need. Ensure that the air entering the room is clean. In this way, the purpose of purifying the indoor air is achieved. The fresh air system is composed of fans, air inlets, exhaust outlets and various pipes and joints. The air inlet and exhaust outlet of most fresh air fans need to be set separately, so two ventilation pipes need to be installed, resulting in the overall volume of the equipment, heavy weight, and complicated structure. The maintenance and replacement cost is h...

AI Technical Summary

Problems solved by technology

The air inlet and exhaust outlet of most fresh air fans need to be set separately, so two ventilation pipes need to be installed, resulting in the overall volume of the equipment, heavy weight, and complicated structure. High cost of repair and replacement

It is still unable to effectively meet the needs of users

[0003] Most of the existing fresh air fans only have a simple ventilation function. For customers who have functional requirements for indoor air purification such as formaldehyde removal, they cannot meet the needs and can only be handled by special air purification equipment.

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