US 11,808,475 B2
Air conditioner and electrical heating control method therefor and control device thereof
Fengchun Wang, Qingdao (CN); Limin Sun, Qingdao (CN); and Sue Liu, Qingdao (CN)
Assigned to QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
Appl. No. 17/442,570
Filed by QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
PCT Filed Sep. 19, 2019, PCT No. PCT/CN2019/106570
§ 371(c)(1), (2) Date Sep. 23, 2021,
PCT Pub. No. WO2020/192044, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 201910233189.1 (CN), filed on Mar. 26, 2019.
Prior Publication US 2022/0349610 A1, Nov. 3, 2022
Int. Cl. F24F 11/65 (2018.01); F24F 11/64 (2018.01); F24F 1/0093 (2019.01)
CPC F24F 11/65 (2018.01) [F24F 1/0093 (2019.02); F24F 11/64 (2018.01)] 3 Claims
OG exemplary drawing
 
1. An electric heating control method for air conditioner, wherein an indoor unit of air conditioner is provided with an electric heating module and an indoor fan; the electric heating module includes an electric heating unit and an electric heating control circuit; wherein the indoor unit is further provided with an auxiliary fan and the electric heating control method comprises:
turning on the electric heating unit and the auxiliary fan when electric heating start condition is satisfied,
dissipating heat produced by the electric heating unit from an air outlet of the indoor unit during the operation of the auxiliary fan,
executing following process cyclically after the electric heating unit and the auxiliary fan starting running:
obtaining a current running speed of the indoor fan and comparing the current running speed with a preset speed;
stopping the auxiliary fan when the current running speed of the indoor fan is not less than the preset speed and the auxiliary fan is in operation;
starting the auxiliary fan when the current running speed is less than the preset speed and the auxiliary fan is not working;
wherein as the electric heating start condition being satisfied, the electric heating control circuit controls the operation of the electric heating unit and the auxiliary fan, and
wherein the auxiliary fan is arranged at a position close to the electric heating unit.