Fresh air large cabinet machine

Abstract

The invention belongs to the technical field of air purification devices, and particularly relates to a fresh air large cabinet machine. The fresh air large cabinet machine comprises a cabinet body and a cabinet door arranged at the front part of the cabinet body, wherein a primary filter, an intermediate filter, a heat exchanger and an efficient filter are arranged in the cabinet body from bottomto top in sequence, an air return opening and a fresh air outlet are formed in the top of the cabinet body, an air inlet and an air outlet are formed in the rear part of the cabinet body, the side edge of the efficient filter is provided with a first air return channel communicating with the air return port, the lower end of the first air return channel communicates with the heat exchanger, the side edge of the heat exchanger is provided with a second air return channel and an air mixing channel which communicates with each other, the air mixing channel is formed in the upper portion of the second air return channel, the upper end of the air mixing channel communicates with the efficient filter, and the second air return channel communicates with the heat exchanger. The fresh air large cabinet machine has various modes and can adjust the optimal fresh air mode according to the indoor environment and requirements of users.

Description

technical field [0001] The invention belongs to the technical field of air purification devices, and in particular relates to a fresh air large cabinet machine. [0002] technical background [0003] People have always paid more attention to wearing masks outdoors to avoid the harm of smog, but in fact, the hazards of indoor air pollution are also particularly dangerous. Indoor pollutants mainly include formaldehyde and benzene series, which can induce various physical diseases. In order to solve the problem of indoor pollution, people generally choose indoor purifiers. [0004] Existing cabinet-type fresh air fans only have a single air inlet or return air flow mode, such as the technical solution disclosed in Chinese patent CN208952277U: a cabinet-type fresh air fan, including a cabinet body, the cabinet body is provided with fresh air outlets, air supply Air outlet, return air outlet and air exhaust outlet, air blower, exhaust fan and heat exchanger are arranged in the c...

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned patents are equipped with various functions, such as electrostatic dust removal, ultraviolet sterilization and disinfection, etc., they ignore the demand for traditional fresh air, and their fresh air efficiency and fresh air rate are low.

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