US 12,222,127 B2
Air conditioner, control method and control device thereof
Feng Wei, Zhuhai (CN); Haidong Lin, Zhuhai (CN); Si Sun, Zhuhai (CN); Chuanhua Wang, Zhuhai (CN); Enquan Zhang, Zhuhai (CN); Pengju Zhao, Zhuhai (CN); Pu Zhao, Zhuhai (CN); and Huaben Li, Zhuhai (CN)
Assigned to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Guangdong (CN)
Filed by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Guangdong (CN)
Filed on Apr. 4, 2022, as Appl. No. 17/713,051.
Application 17/713,051 is a continuation in part of application No. 16/342,533, abandoned, previously published as PCT/CN2017/103464, filed on Sep. 26, 2017.
Claims priority of application No. 201610903627.7 (CN), filed on Oct. 17, 2016.
Prior Publication US 2022/0228767 A1, Jul. 21, 2022
Int. Cl. F24F 11/86 (2018.01); F24F 11/63 (2018.01)
CPC F24F 11/86 (2018.01) [F24F 11/63 (2018.01)] 17 Claims
OG exemplary drawing
 
1. A control method of an air conditioner, comprising:
acquiring a temperature (T1) of injected vapor and a pressure (P1) of the injected vapor of a compressor of the air conditioner, to obtain a superheat degree (TG) of the injected vapor of the compressor of the air conditioner and a continuous duration (tc) of the superheat degree (TG) of the injected vapor; the continuous duration (tc) of the superheat degree (TG) of the injected vapor being a time period during which the superheat degree (TG) of the injected vapor continues;
if the continuous duration (tc) is greater than or equal to a first preset value (tMAX), and if an exhaust temperature (T2) of the compressor is less than a critical value (TL) of the exhaust temperature of the compressor within the continuous duration (tc), controlling the compressor to be in a shutdown state, and controlling the compressor to restart or to be in a shutdown protection state according to the number (N) of shutdowns of the compressor; and
if the continuous duration (tc) is less than the first preset value (tMAX), and if the exhaust temperature (T2) of the compressor is less than the critical value (TL) of the exhaust temperature of the compressor within the continuous duration (tc), controlling the compressor to remain in an operating state.