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Patent Searching and Data


Title:
AIR CONDITIONING SYSTEM, AND ELECTRONIC EXPANSION VALVE AND ELECTROMAGNETIC COIL STRUCTURE OF ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2020/024877
Kind Code:
A1
Abstract:
Provided is an electromagnetic coil structure, comprising a coil assembly (110), an insulating protective plate (120), a sealant (130) and a lead assembly (140). The coil assembly (110) comprises a plastic packaging shell (111) and a coil (112) accommodated and fixed in the plastic packaging shell (111). The insulating protective plate (120) is arranged at a side wall (1111) of the plastic packaging shell (111), and an accommodating cavity (121) with a wire outlet (122) is formed between the insulating protective shell and the side wall (1111). The accommodating cavity (121) is divided into a fixed cavity (1211) and an extending cavity (1212). The extending cavity (1212) is located at one end, close to the wire outlet (122) of the accommodating cavity (121). The sealant (130) is accommodated and solidified in the fixed cavity (1211). A sealant surface (131) is formed at one end, close to the wire outlet (122), of the sealant (130). The lead assembly (140) comprises a lead (141), with one end of the lead (141) being embedded in the sealant (130) and being electrically connected to the coil (112), and the other end thereof extending out of the wire outlet (122). Further provided are an electronic expansion valve comprising the electromagnetic coil structure and an air conditioning system comprising the electronic expansion valve. The electromagnetic coil structure can reduce the occurrence of a lead sheath rupturing, a lead breaking, etc., which are caused by the lead being excessively bent, thereby prolonging the service life of the lead and the electromagnetic coil structure.

Inventors:
ZENG QINGJUN (CN)
ZHAO JUN (CN)
Application Number:
PCT/CN2019/097884
Publication Date:
February 06, 2020
Filing Date:
July 26, 2019
Export Citation:
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Assignee:
ZHEJIANG DUNAN HETIAN METAL CO (CN)
TIANJIN HUAXIN MACHINERT CO LTD (CN)
International Classes:
F16K31/06
Foreign References:
CN208935520U2019-06-04
CN105742002A2016-07-06
CN105742002A2016-07-06
CN102537479A2012-07-04
CN106151646A2016-11-23
CN104455637A2015-03-25
JP2005291266A2005-10-20
JP2006333664A2006-12-07
Attorney, Agent or Firm:
HANGZHOU HUAJIN LIANZHE INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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