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A device, air conditioner and method for preventing cooling fan from reversing

A technology for cooling fans and fan motors, which is applied in air-conditioning systems, heating methods, space heating and ventilation, etc. It can solve problems such as failure of cooling fans to start, and achieve the effect of improving cleanliness

Active Publication Date: 2018-12-21
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiments of the present invention provide a device, an air conditioner and a method for preventing the cooling fan from reversing, so as to solve the technical problem that the cooling fan rotates in the reverse direction when the headwind blows to the cooling fan, thereby causing the cooling fan to fail to start.

Method used

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  • A device, air conditioner and method for preventing cooling fan from reversing
  • A device, air conditioner and method for preventing cooling fan from reversing
  • A device, air conditioner and method for preventing cooling fan from reversing

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Embodiment 1

[0049] figure 1 It is a structural schematic diagram of the device for preventing the reverse rotation of the cooling fan provided by Embodiment 1 of the present invention. figure 2 It is a schematic diagram of the installation of the device for preventing the reverse rotation of the cooling fan provided by Embodiment 1 of the present invention. see figure 1 and figure 2 , the device for preventing the cooling fan from reversing, including: a frame 1, the frame 1 is used to be arranged on the outside of the cooling fan (not shown in the figure); a grille 2, the grille 2 is arranged on the frame 1 It is at the air inlet and is movably connected with the frame 1 for changing the air intake direction of the frame 1 by controlling the movement of the grille 2 . Depend on figure 1 and figure 2 It can be seen that the frame 1 is installed on the outside of the outdoor unit and arranged on the outside of the cooling fan. A grille 2 is arranged at the air inlet of the frame 1...

Embodiment 2

[0065] Figure 4 It is a schematic flowchart of the method for preventing the cooling fan from reversing according to the second embodiment of the present invention. The method for preventing the reverse rotation of the cooling fan provided in this embodiment is implemented by using the device for preventing the reverse rotation of the cooling fan provided in the above embodiment.

[0066] see Figure 4 , the method for preventing the cooling fan from reversing, comprising:

[0067] Step 210, controlling the relative angle between the grille and the frame to change the wind direction.

[0068] Since the outdoor unit of the air conditioner is located outdoors, and the outdoor environment is constantly changing. If the air conditioner is installed in the windy northern region, in spring and autumn, the outdoor unit is often blown into the interior of the outdoor unit due to the strong outdoor wind, driving the cooling fan of the outdoor unit to reverse, and then the cooling f...

Embodiment 3

[0075] Figure 5 It is a schematic flowchart of the method for preventing the cooling fan from reversing according to Embodiment 3 of the present invention. This embodiment is based on the second embodiment. Further, the method further includes: if the fan motor fails to start, reversely control the relative angle between the grille and the frame to change the Inlet wind direction; start the fan motor, and judge whether the fan motor starts successfully. If the fan motor is started successfully, when the cooling fan motor rotates at a speed satisfying a preset condition, the air intake direction is changed to achieve a maximum air output volume.

[0076] see Figure 5 , the method for preventing the cooling fan from reversing, comprising:

[0077] Step 310, controlling the relative angle between the grille and the frame, so as to change the air inlet direction.

[0078] Step 320, start the fan motor, and judge whether the fan motor is started successfully.

[0079] Step 3...

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Abstract

The invention discloses a device and method for preventing a cooling fan from rotating reversely and an air conditioner. The device comprises a frame and a grating, wherein the frame is used for being arranged on the outer side of the cooling fan, the grating is arranged at an air inlet of the frame and movably connected with the frame, and the air inflow direction of the frame can be changed by controlling movement of the grating. By arranging the grating capable of rotating by a certain angle at an air outlet of an outdoor unit and controlling the angle of the grating, reverse air blown into the inner side of the outdoor unit is reduced, a motor start failure caused by high-speed reverse rotation at the initial stage of cooling fan motor drive is prevented, and thus the variable-frequency air conditioner can be started in different outside wind force environments. Meanwhile, foreign matter or dust entering the outdoor unit of the air conditioner can be reduced by closing the grating, and thus the system cleanliness can be improved.

Description

technical field [0001] The invention relates to the technical field of cooling fans, in particular to a device, an air conditioner and a method for preventing the cooling fan from reversing. Background technique [0002] Air conditioners include cooling and heating functions, and can be divided into integrated and split types. Generally speaking, the indoor unit of the split type air conditioner is installed indoors for cooling the room. The outdoor unit is located outdoors and connected to the indoor unit through refrigerant pipes. The outdoor unit is in contact with the outside air and uses the outside air as the cooling medium. After condensing the refrigerant gas in the condenser, the refrigerant is supplied to the evaporator of the indoor unit through the refrigerant pipe. The outdoor unit includes a compressor, a condenser, and a cooling fan. The compressor compresses the refrigerant and supplies it to the condenser. The air condenser condenses the refrigerant. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/48F24F11/79
CPCF24F1/48F24F11/30
Inventor 刘杰陈翀庞伟岳元龙关福成
Owner GREE ELECTRIC APPLIANCES INC
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