- 专利标题: Valve Needle Assembly and Electronic Expansion Valve Having Same
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申请号: US18030500申请日: 2021-11-05
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公开(公告)号: US20230408156A1公开(公告)日: 2023-12-21
- 发明人: Shaojun ZHAN , Leqiang LIU , Guanjun XU
- 申请人: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
- 申请人地址: CN Shaoxing, Zhejiang
- 专利权人: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
- 当前专利权人: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
- 当前专利权人地址: CN Shaoxing, Zhejiang
- 优先权: CN 2011446606.X 2020.12.11
- 国际申请: PCT/CN2021/129092 2021.11.05
- 进入国家日期: 2023-04-05
- 主分类号: F25B41/34
- IPC分类号: F25B41/34 ; F16K1/36 ; F16K1/42 ; F16K1/46
摘要:
A valve needle assembly and an electronic expansion valve having same. The valve needle assembly includes: a valve sleeve, the valve sleeve having a cavity, and the valve sleeve having a first end and a second end arranged opposite each other; a bushing movably arranged in the cavity, the bushing being in limiting fit with the first end of the valve sleeve, and the bushing being used for driving the valve sleeve to move; a spring arranged in the cavity, wherein one end of the spring is connected with the bushing, and the other end of the spring is connected with the second end of the valve sleeve; and a sealing member fixedly arranged at the second end of the valve sleeve, the sealing member being configured for closing a valve port.
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