Two-stage fan system, air conditioner outdoor unit and air conditioner
A fan system and air conditioner room technology, applied in air conditioning systems, space heating and ventilation, heating methods, etc., can solve the uneven heat dissipation capacity of the upper and lower pipelines of the heat exchanger, the uneven distribution of the flow field of the heat exchanger, and the impact Heat exchanger fin performance and other issues, to ensure the normal performance, improve performance, reduce the effect of the gap
Active Publication Date: 2020-12-18
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
[0003] However, due to the high height of the heat exchanger of the top outlet air outdoor unit, when the fan 2' rotates in the upper part of the chamber of the heat exchanger housing 1', it enters the cavity of the heat exchanger housing 1' from the air inlet 4' The air volume inside the room decreases successively from top to bottom (such as figure 1 As shown, the direction of the arrow is the direction of air circulation, and the length of the arrow represents the air volume entering the 1' chamber of the heat exchanger shell), and the difference between the upper and lower air volumes can be as large as 3 times, resulting in uneven distribution of the flow field of the heat exchanger , which affects the performance of the fins of the heat exchanger, resulting in uneven heat dissipation capacity of the upper and lower pipes of the heat exchanger, thereby reducing the performance of the entire air conditioner
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[0028] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.
[0029] In the description of the present invention, it should be noted that: (1) Figure 7 The direction of the arrow in indicates the direction of air circulation after the operation of the two-stage fan system; (2) the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear" etc. Based on the positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as R...
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The present invention proposes a two-stage fan system, an outdoor unit of an air conditioner, and an air conditioner, wherein the two-stage fan system includes a first fan unit that can introduce air from the upper part of the side of the heat exchanger to the top of the heat exchanger, and can introduce the air The second fan unit introduced from the lower part of the side of the heat exchanger to the top of the heat exchanger, the first fan unit is located above the second fan unit, the rotating shaft of the first fan unit and the second fan unit Coaxial and arranged along the vertical direction, the outdoor unit of the air conditioner and the air conditioner both include the above-mentioned two-stage fan system. The invention can improve the uniformity of the flow field of the heat exchanger.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a two-stage fan system, an outdoor unit of an air conditioner and an air conditioner. Background technique [0002] The structure of the top outlet outdoor unit is as follows: figure 1 As shown, it includes a heat exchanger shell 1' and a fan 2'. The heat exchanger shell 1' has an air outlet 3' and an air inlet 4'. The air outlet 3' is located on the top of the heat exchanger shell, and the air inlet 4' is located on the side of the heat exchanger shell 1', the fan 2' is an axial fan, the fan 2' is rotatably installed above the heat exchanger shell 1', and the rotating shaft of the fan 2' is set in the vertical direction, The fan 2' is located on the upper part of the chamber of the heat exchanger shell 1', when the fan 2' rotates, the air flows along figure 1 The direction of the arrow enters from the air inlet 4' and exits from the air outlet 3'. [0003...
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IPC IPC(8): F24F1/38
CPCF24F1/38
Inventor 赵鹏飞王洪新李文阳车家强王庆杰
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST