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Patent Searching and Data


Title:
HEAT PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2021/008331
Kind Code:
A1
Abstract:
The present invention relates to the technical field of heat exchange, and in particular, provides a heat pump unit. The present invention aims at solving the problem of poor means used by existing heat pump units for stably operating under a low ambient temperature and a high pressure ratio. To this end, the heat pump unit in the present invention comprises a main circulation loop and a liquid spray pipeline in communication with the main circulation loop. The main circulation loop is provided with a compressor, a first heat exchanger, a throttling component, and a second heat exchanger which are in communication with each other. In a heating mode, the first heat exchanger is used as an evaporator, and the second heat exchanger is used as a condenser. The throttling component is provided between the first heat exchanger and the second heat exchanger. One end of the liquid spray pipeline is connected to the compressor, and the other end of the liquid spray pipeline is connected between the first heat exchanger and the throttling component, so that a cooled heat exchange medium can be introduced into the compressor so as to effectively decrease the evaporation temperature of the compressor, and thus effectively reducing costs while ensuring that the heat pump unit can stably operate under a low ambient temperature and a high pressure ratio.

Inventors:
XIE JIPEI (CN)
ZHANG HONGLIANG (CN)
LI LIN (CN)
XU ZHIQIANG (CN)
ZHAO LEI (CN)
LIU QIANKUN (CN)
Application Number:
PCT/CN2020/098504
Publication Date:
January 21, 2021
Filing Date:
June 28, 2020
Export Citation:
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Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25B30/02; F25B41/00
Foreign References:
CN210772875U2020-06-16
CN202304098U2012-07-04
CN206330315U2017-07-14
CN107477916A2017-12-15
CN207081247U2018-03-09
CN207831739U2018-09-07
CN108106043A2018-06-01
CN205026783U2016-02-10
CN203405023U2014-01-22
CN103615836A2014-03-05
CN103557633A2014-02-05
KR101715863B12017-03-14
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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