US 12,270,489 B2
Electric valve and assembly method therefor
Lei Zhou, Zhejiang (CN); Yiyuan Pan, Zhejiang (CN); and Liwei Wu, Zhejiang (CN)
Assigned to HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD, Zhejiang (CN)
Appl. No. 17/912,092
Filed by HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Zhejiang (CN)
PCT Filed Feb. 26, 2021, PCT No. PCT/CN2021/077996
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/185048, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010179491.6 (CN), filed on Mar. 16, 2020; and application No. 202020380324.3 (CN), filed on Mar. 23, 2020.
Prior Publication US 2023/0160497 A1, May 25, 2023
Int. Cl. F16K 31/04 (2006.01); B60H 1/00 (2006.01); F16K 41/04 (2006.01); F25B 41/35 (2021.01)
CPC F16K 41/04 (2013.01) [B60H 1/00485 (2013.01); F16K 31/047 (2013.01); F25B 41/35 (2021.01)] 18 Claims
OG exemplary drawing
 
1. An electric valve, comprising a stator assembly, a valve component, a valve body and a sleeve, wherein the stator assembly is located at an outer circumference of the sleeve, the stator assembly is position-limitedly connected or fixedly connected to the valve body, wherein the electric valve further comprises a first sealing member, the stator assembly has a first recessed portion, at least part of an opening of the first recessed portion is arranged toward the valve body, the first sealing member is located in the first recessed portion, the first recessed portion is located at the outer circumference of the sleeve, and the first sealing member is located between the valve body and the stator assembly; the first recessed portion has a first mounting surface and a second mounting surface, wherein, in a radial direction; an inner side portion of the first sealing member abuts against an outer circumferential surface of a side wall of the sleeve, and an outer side portion of the first sealing member abuts against the second mounting surface, and in an axial direction, a position of the first sealing member is limited by the first mounting surface,
wherein the electric valve further comprises a compression nut and a supporting pad, the valve body is position-limitedly connected to the valve component through the compression nut, the sleeve is position-limitedly connected to the valve component, the supporting pad is located at an upper end of the compression nut, the supporting pad is position-limitedly connected to the compression nut or the supporting pad and the compression nut form an integral member, a part of the opening of the first recessed portion is arranged toward the supporting pad, and a lower end surface of the first sealing member abuts against the supporting pad.