US 11,725,652 B2
Electric oil pump
Bingjiu Yin, Zhejiang (CN); Wei Ye, Zhejiang (CN); Yongfeng Sun, Zhejiang (CN); Kai Zhang, Zhejiang (CN); Zhiwang Wu, Zhejiang (CN); and Fangxu Qian, Zhejiang (CN)
Assigned to ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD, Zhejiang (CN)
Appl. No. 17/50,195
Filed by ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD, Zhejiang (CN)
PCT Filed May 27, 2019, PCT No. PCT/CN2019/088618
§ 371(c)(1), (2) Date Oct. 23, 2020,
PCT Pub. No. WO2019/228312, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 201810519273.5 (CN), filed on May 28, 2018.
Prior Publication US 2021/0239115 A1, Aug. 5, 2021
Int. Cl. F04C 11/00 (2006.01); F04C 2/10 (2006.01)
CPC F04C 11/008 (2013.01) [F04C 2/10 (2013.01); F04C 2240/10 (2013.01); F04C 2240/20 (2013.01); F04C 2240/30 (2013.01); F04C 2240/60 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An electric oil pump, comprising:
a pump housing provided with an inner pump cavity, wherein the inner pump cavity comprises a first cavity and a second cavity that are in communication with each other;
a first rotor assembly disposed in the first cavity;
a stator assembly and a second rotor assembly that are disposed in the second cavity;
a pump shaft, wherein the first rotor assembly is disposed adjacent to a first end of the pump shaft, part of the first rotor assembly is connected to the pump shaft, and the second rotor assembly is disposed adjacent to a second end of the pump shaft and is connected to the pump shaft;
an electric control board assembly;
an isolating member, wherein the stator assembly is disposed at a first side of the isolating member, the electric control board assembly is disposed at a second side of the isolating member, and the isolating member is connected to the pump housing; and
a wiring terminal fixedly connected to the isolating member;
wherein a connecting position between the wiring terminal and the isolating member is sealed and a connecting position between the isolating member and the pump housing is sealed, so that the second cavity is unable to communicate with one side of the isolating member where the electric control board assembly is located via the connecting position between the wiring terminal and the isolating member, and via the connecting position between the isolating member and the pump housing; and
wherein the isolating member is provided with a groove recessed from an upper surface of the isolating member, the wiring terminal is configured to pass through the groove, a sealant is filled between an outer periphery of the wiring terminal and an inner wall of the groove, so that the connecting position between the wiring terminal and the isolating member is sealed.