US 12,264,861 B2
Controller, air conditioner, and high-pressure protection circuit
Yongsong Lv, Zhejiang (CN); Guojian Qiu, Zhejiang (CN); and Lusi Zhang, Zhejiang (CN)
Assigned to HANGZHOU LEADERWAY ELECTRONICS CO., LTD, Hangzhou (CN)
Filed by HANGZHOU LEADERWAY ELECTRONICS CO., LTD, Zhejiang (CN)
Filed on Jul. 29, 2022, as Appl. No. 17/877,222.
Application 17/877,222 is a continuation of application No. PCT/CN2022/086148, filed on Apr. 11, 2022.
Claims priority of application No. 202120778332.8 (CN), filed on Apr. 16, 2021; and application No. 202120789232.5 (CN), filed on Apr. 16, 2021.
Prior Publication US 2022/0381497 A1, Dec. 1, 2022
Int. Cl. F25B 49/02 (2006.01); H02M 1/42 (2007.01); H02M 3/335 (2006.01)
CPC F25B 49/022 (2013.01) [H02M 1/42 (2013.01); H02M 3/33507 (2013.01); F25B 2600/021 (2013.01); F25B 2700/19 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller for controlling an air conditioner, comprising a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit;
wherein an input end of the first rectifier unit is capable of being electrically connected to an input power supply, an output end of the first rectifier unit is capable of being electrically connected to an input end of the power conversion unit, and the first rectifier unit is configured to convert an input alternating current (AC) into a high-voltage direct current (DC) and output the high-voltage DC to the power conversion unit;
wherein an output end of the power conversion unit is capable of being electrically connected to a power supply end of the low-voltage control unit, and the power conversion unit is configured to convert the high-voltage DC into a low-voltage DC and output the low-voltage DC to the power supply end of the low-voltage control unit to supply power to the low-voltage control unit;
wherein the HPS wiring terminal is capable of being electrically connected to a pressure switch, the HPS wiring terminal is connected to a front end of the power supply end of the low-voltage control unit so as to be capable of switching off or switching on a power supply voltage of the low-voltage control unit; and
wherein an output end of the low-voltage control unit is connected to a control end of the high-voltage operating unit, and the low-voltage control unit is configured to output a control signal to control operation of the high-voltage operating unit.