US 12,078,369 B2
Air conditioner anti-frosting control method and apparatus
Hua Liu, Zhuhai (CN); Wei Wang, Zhuhai (CN); Shimin Liang, Zhuhai (CN); Yuying Sun, Zhuhai (CN); and Dexing Duan, Zhuhai (CN)
Assigned to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
Appl. No. 17/438,255
Filed by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
PCT Filed Dec. 23, 2019, PCT No. PCT/CN2019/127443
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/181874, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 201910189938.5 (CN), filed on Mar. 13, 2019.
Prior Publication US 2022/0186961 A1, Jun. 16, 2022
Int. Cl. F24F 11/42 (2018.01); F24F 11/63 (2018.01)
CPC F24F 11/42 (2018.01) [F24F 11/63 (2018.01)] 12 Claims
OG exemplary drawing
 
1. An air conditioner anti-frosting control method, comprising:
determining an average defrosting frequency of an air conditioner unit in a current climate;
determining a target defrosting frequency according to the average defrosting frequency; and
determining a heat exchange temperature difference according to the target defrosting frequency and controlling the air conditioning unit to operate according to the heat exchange temperature difference,
wherein determining the average defrosting frequency of the air conditioner unit in the current climate further comprises:
acquiring a meteorological parameter of an area where the air conditioner unit is located; and
calculating the average defrosting frequency of the air conditioner unit according to the meteorological parameter and a frosting map determined by the air conditioner unit;
wherein a horizontal coordinate of the frosting map is air temperature and a longitudinal coordinate is relative air humidity, the frosting map comprises: a dew-forming area, a non-frosting area and a frosting area; the frosting area contains equal-rate frosting curves for dividing the frosting area into various frosting sub-areas, and the frosting sub-areas comprise at least one of: a first frost area. a second frosting area and a third frost area, each frosting sub-area corresponding to one defrosting frequency, the defrosting frequency of the first frost area is less than a first preset defrosting frequency, the defrosting frequency of the third frost area is greater than a second preset defrosting frequency, the defrosting frequency of the second frosting area is between the first preset defrosting frequency and the second preset defrosting frequency, and the first preset defrosting frequency is less than the second preset defrosting frequency.