Double cross-flow air conditioner, its fan control device and fan control method
A technology of a control device and a control method, applied in mechanical equipment, high-efficiency regulation technology, climate sustainability, etc., can solve the problems of the influence of the overall operation efficiency of the dual fans, the inability to exert the best performance of the dual fans, etc., so as to improve the operation efficiency. Effect
Active Publication Date: 2018-02-16
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0006] Since the actual efficiency of the two fans is very different, the same speed control method for the two fans cannot give full play to the best performance of the two fans, and the overall operating efficiency of the two fans is affected
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0033] In the double cross-flow air conditioner, the inventors found that the actual efficiency of the two fans is very different. At present, the same speed control method is used for the two fans. Due to the difference in the actual efficiency of the two fans, the best performance of the dual fans cannot be exerted, resulting in the overall operating efficiency of the dual fans being affected. Aiming at this problem, the present invention proposes a fan control scheme for a double cross-flow air conditioner, which controls the rotational speeds of the two fans differently, so that the fan with high efficiency can output more power as much as possible, thereby improving the overall operating efficiency of the dual fans.
[0034] image 3 It is a schematic flowchart of an emb...
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The invention discloses a double-cross-flow air conditioner as well as a fan control device and method of the double-cross-flow air conditioner, relating to the field of air conditioners. The fan control device comprises a fan rotating speed determining unit and a fan rotating speed control unit, wherein the fan rotating speed determining unit is used for determining the rotating speeds of a first fan and a second fan according to the air volume required by heat exchange of the double-cross-flow air conditioner and efficiencies of the two fans, and the determined rotating speed of the first fan is higher than that of the second fan; the fan rotating speed control unit is used for controlling the rotating speeds of the first fan and the second fan according to the rotating speeds of the first fan and the second fan, determined by the fan rotating speed determining unit; and the efficiency of the first fan is higher than that of the second fan. The fan with high efficiency is enabled to output more power as much as possible through distinguishing and controlling the rotating speeds of the two fans, so that the whole operating efficiency of the double fans is increased.
Description
technical field [0001] The invention relates to the field of air conditioning, in particular to a double cross-flow air conditioner, a fan control device and a fan control method thereof. Background technique [0002] In recent years, double cross-flow air conditioners have been proposed in the field of air conditioning, see figure 1 and figure 2 The top view and the front view of the outdoor unit of the shown double cross-flow air conditioner, there are two fans 12,14 and two cross-flow air ducts 22,24 in the outdoor unit of the double cross-flow air conditioner. At present, the industry usually adopts the same rotational speed control method for the two fans, for example, the two fans are controlled to work at a low wind speed. [0003] However, the inventor found through research that the two through-flow air ducts are not completely symmetrical, resulting in a great difference in the actual efficiency of the two fans. against figure 1 Some experimental data can also...
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IPC IPC(8): F24F11/77
CPCF24F11/77Y02B30/70
Inventor 廖敏廖俊杰罗永前熊军吴俊鸿陈志伟陈英强
Owner GREE ELECTRIC APPLIANCES INC