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Title:
TOTAL HEAT RECOVERY DEFROSTING CONTROL METHOD AND CONTROL DEVICE, AND AIR CONDITIONING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/042654
Kind Code:
A1
Abstract:
A total heat recovery defrosting control method and control system (10), and an air conditioning apparatus. The method comprises the following steps: operating in a heating mode or a hot water mode; determining whether the current operating status satisfies a defrosting operating condition; if the current operating status satisfies the defrosting operating condition, comparing a heating demand with a hot water demand; if the heating demand is higher than the hot water demand, executing a hot-water defrosting mode; and if the hot water demand is higher than the heating demand, executing a heating defrosting mode. The control system (10) is provided with a defrosting determination module (101), a comparison module (102), and an execution module (103). By means of comparing the heat demand of a total heat recovery set on the heating and water heating of an air conditioner, a heat exchanger demanding less heat is selected to perform defrosting, thus avoiding a great amount of heat being lost by the heat exchanger in an operating mode, reducing the influence thereof on the usage experience of a user, and ensuring a heating demand or hot water demand of the user.

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Inventors:
LENG YU (CN)
SUN HUI (CN)
ZHAO LEI (CN)
LI ZHENHONG (CN)
Application Number:
PCT/CN2020/070797
Publication Date:
March 11, 2021
Filing Date:
January 08, 2020
Export Citation:
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Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F24F11/42
Foreign References:
CN104359177A2015-02-18
CN105074359A2015-11-18
CN201935471U2011-08-17
CN106482292A2017-03-08
CN102095294A2011-06-15
CN205991639U2017-03-01
CN103267362A2013-08-28
JP2008039299A2008-02-21
CN201212721Y2009-03-25
Other References:
See also references of EP 4027070A4
Attorney, Agent or Firm:
QINGDAO LZ PATENT AND TRADEMARK OFFICE CO., LTD. (CN)
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