US 12,146,700 B2
Control system and control method of refrigerator
Jian Ma, Qingdao (CN); Xiaobing Zhu, Qingdao (CN); Weijie Li, Qingdao (CN); Mengcheng Li, Qingdao (CN); Bin Fei, Qingdao (CN); Peng Liu, Qingdao (CN); and Changzhi Wang, Qingdao (CN)
Assigned to QINGDAO HAIER REFRIGERATOR CO., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
Appl. No. 17/916,567
Filed by QINGDAO HAIER REFRIGERATOR CO., LTD., Qingdao (CN); and HAIER SMART HOME CO., LTD., Qingdao (CN)
PCT Filed Feb. 5, 2021, PCT No. PCT/CN2021/075464
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2021/196889, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 202010234075.1 (CN), filed on Mar. 30, 2020.
Prior Publication US 2024/0085086 A1, Mar. 14, 2024
Int. Cl. F25D 17/06 (2006.01); F25D 23/00 (2006.01); F25D 23/10 (2006.01)
CPC F25D 17/062 (2013.01) [F25D 23/003 (2013.01); F25D 23/10 (2013.01); F25D 2323/0023 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A control system of a refrigerator, wherein the refrigerator comprises a compressor compartment and a shielding member, the compressor compartment comprises a built-in space, a compartment wall enclosing the built-in space, and a heat dissipation fan disposed in the built-in space, the compartment wall is provided with a first air port, a second air port and a third air port, the compartment wall comprises a back plate disposed behind the built-in space, and a bottom plate disposed below the built-in space, the first air port and the second air port are disposed on one of the back plate and the bottom plate, the third air port is disposed on the other of the back plate and the bottom plate, the built-in space has a first air passage and a second air passage, the first air passage communicates with the second air port and the first air port and passes through the heat dissipation fan, and the second air passage communicates with the second air port and the third air port and passes through the heat dissipation fan; when the first air port is opened, both the first air passage and the second air passage form a circulation loop with the external; when the first air port is closed by the shielding member, the second air passage forms a circulation loop with the external;
the control system comprises:
a collection unit configured to collect a power-on signal of the refrigerator and a closing signal and an opening signal of the first air port;
a fan control unit connected to the collection unit, and configured to control the heat dissipation fan to operate at a preset rotation speed Nf1 when the collection unit collects the opening signal of the first air port; control the heat dissipation fan to operate at a preset rotation speed Nf2 when the collection unit collects the closing signal of the first air port and the power-on signal of the refrigerator; where Nf2>Nf1.