Search International and National Patent Collections

1. (WO2018103727) REFRIGERATING AND FREEZING DEVICE AND CONTROL METHOD THEREFOR

Pub. No.:    WO/2018/103727    International Application No.:    PCT/CN2017/115145
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Sat Dec 09 00:59:59 CET 2017
IPC: F25D 29/00
Applicants: QINGDAO HAIER JOINT STOCK CO., LTD
青岛海尔股份有限公司
Inventors: LOU, Xicai
娄喜才
WANG, Ming
王铭
ZHU, Xiaobing
朱小兵
WANG, Lei
王磊
Title: REFRIGERATING AND FREEZING DEVICE AND CONTROL METHOD THEREFOR
Abstract:
A refrigerating and freezing device and a control method therefor. The method comprises: starting an air extracting pump (40), enabling the air extracting pump (40) to run for a first preset time and then stopping the air extracting pump (40), so that the concentration of nitrogen in an air-regulating fresh-keeping space reaches a preset concentration threshold; detecting whether the air-regulating fresh-keeping space is opened and then closed; and if yes, after the stop duration of the air-regulating fresh-keeping space exceeds a second preset time, controlling the air extracting pump (40) to be started, and enabling the air extracting pump (40) to continually run for the first preset time and then stopping the air extracting pump (40).