Cooling and heating fan device with adjustable inlet air

Abstract

The invention discloses a cooling and heating fan device with adjustable inlet air. The cooling and heating fan device is characterized in that a section of radial air inlet channel is further arranged on a rear mesh enclosure located between fan blades and a heating assembly, a section of closed annular air channel is formed in the front end of the rear mesh enclosure and coaxially connected with the radial air inlet channel, a plurality of axially-arranged partition strips are arranged on the radial air inlet channel, a radial air inlet gap is formed between every two adjacent partition strips, a cylindrical air blocking ring is further arranged at the radial air inlet channel, and the air blocking ring is attached to the surface of the whole radial air inlet channel and can rotate along the circumferential surface of the radial air inlet channel; and the air blocking ring is of a grid structure, and a plurality of axially-arranged grid bars are arranged on the air blocking ring. When the grid bars on the air blocking ring rotate to the positions of the radial air inlet gaps, the radial air inlet gaps in the radial air inlet channel are closed, and when the grid bars on the air blocking ring rotate to the positions of the partition strips, the radial air inlet gaps in the radial air inlet channel are opened, the phenomenon that cold air is mixed during warm air can be completely avoided, and the body feeling of a user is effectively improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a cooling and heating fan device with adjustable air intake. Background technique [0002] Heaters or fans are essential appliances in modern households. At present, there are either a single heater or a single fan on the market, but there are very few products that can truly combine the functions of heater heating and fan blowing. It is a cooling and heating type circulation fan. The cooling and heating circulation fan can be used not only as a heater, but also as a fan. Due to the fixed product structure of the cooling and heating circulation fan, the axial flow fan blades enter the air synchronously in both radial and axial directions, and the air intake volume is large. When warm air is needed, the hot air blown out is also mixed with cold air, especially around the entire front net, and the body feeling is not very ideal. [0003] For example, the Chinese patent ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the existing axial-flow cooling and heating circulation fan has a large amount of heating air mixed with unheated cold air, resulting in an unsatisfactory somatosensory effect. The adjustable cooling and heating fan device can not only realize the adjustment of the cold air volume, but also improve the heating effect

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