Air-conditioner internal unit and air conditioner

Abstract

The invention relates to an air-conditioner internal unit and an air conditioner. The air-conditioner internal unit comprises an internal air duct (11) and a counter-rotating fan (2), wherein the internal air duct (11) communicates with an air inlet (12) and an air exhaust (13) of the air-conditioner internal unit, and the counter-rotating fan (2) is arranged in the internal air duct (11) and used for guiding an air flow to flow to the air exhaust (13) along the internal air duct (11) from the air inlet (12). According to the air-conditioner internal unit and the air conditioner, the counter-rotating fan is arranged in the internal air duct of the air-conditioner internal unit to guide the air flow, and compared with an existing scheme of adopting a centrifugal fan or an axial flow fan with a larger size for meeting the air supply requirement, the installation space occupied by the counter-rotating fan is smaller under the condition of meeting the same air supply requirement, and therefore the installation requirements of more applicable occasions can be met, especially occasions with compact installation space requirements.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner inner unit and an air conditioner. Background technique [0002] Commercial air conditioners are widely used, and different usage occasions make the requirements for commercial air conditioners also different. Take the internal air conditioner used on ships as an example. Due to the limited space on ships, there are very strict requirements on the size of commercial air conditioners. Many air-conditioning internal units of existing commercial air conditioners include centrifugal fans, motors, heat exchangers and other components. Since the air intake direction and exhaust direction of centrifugal fans are perpendicular to each other, the size of commercial air conditioners is limited by this feature. It is difficult to reduce, and there are many restrictions on the installation position and direction of the centrifugal fan in the design of the air conditioner. ...

AI Technical Summary

Problems solved by technology

Many air-conditioning internal units of existing commercial air conditioners include centrifugal fans, motors, heat exchangers and other components. Because the direction of air intake and exhaust direction of centrifugal fans are perpendicular to each other, the size of commercial air conditioners is limited by this feature. It is difficult to reduce, and there are many restrictions on the installation position and direction of the centrifugal fan in the design of the air conditioner

[0003] For the air-conditioning internal unit, if an axial flow fan is used instead of a centrifugal fan, its working pressure is small and it is difficult to meet the air supply requirements. If you want to increase the working pressure, you must increase the size of the axial flow fan, thereby making the air conditioner The overall size still cannot be reduced, which limits the use occasions that require installation space

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