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1.发明授权公开(公告)号：US09831741B2
公开(公告)日：2017-11-28
申请号：US15011614
申请日：2016-01-31
发明人： Zhao Fan , Yabin Ding , Guoyao Li , Huaican Liu
CPC分类号： H02K5/225 , H01R9/24 , H02K5/22 , H02K2213/03
摘要： Disclosed are a terminal mechanism, a permanent magnet adjustable-speed motor and a centrifugal refrigeration compressor. The terminal mechanism comprises a terminal board, power supply connectors and sealing rings; the terminal board is made of steel, and the magnetic permeability μ of the steel is less than or equal to 1.31×10−6 H/m. The terminal board is a flat board having an upper surface and a lower surface, and is provided with terminal holes thereon. The sealing rings are sleeved on the power supply connectors. The power supply connectors are fixed on the terminal board through the terminal holes. The sealing rings are in sealing engagement with the terminal board, so as to reduce heat generated by an electric eddy current.
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公开(公告)号：US10211687B2
公开(公告)日：2019-02-19
申请号：US14912030
申请日：2014-08-04
发明人： Zhao Fan , Yabin Ding , Ying Chen , Huaican Liu
摘要： A stator and a rotor are mounted inside a case of a permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. An air gap is formed between an inner circle surface of the stator and an outer circle surface of the rotor. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity are disposed in teeth of a stator core. The rotor comprises a rotor core and rotor pressing rings disposed in an axial direction at both sides of the rotor core. A partition is disposed between the rotor core and at least one of the rotor pressing rings. An outer edge of the partition extends into the air gap, thus enhancing the air blocking effect and realizing a higher cooling efficiency.
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公开(公告)号：US10356962B2
公开(公告)日：2019-07-16
申请号：US15024473
申请日：2014-06-25
发明人： Hongbo Li , Hua Liu , Zhiping Zhang , Yu Zhou , Huaican Liu
摘要： The invention discloses a power electronic device cooling system, which includes an air conditioning unit, a coolant pump (31), a bypass throttling element (32) and a cooler. The coolant pump (31) takes liquid from a first condenser (13) of the air conditioning unit, a liquid coolant enters the cooler after being throttled by the bypass throttling element (32), the low-temperature coolant cools a power electronic device at the cooler, and the coolant enters an evaporator (11) of the air conditioning unit to finish a cooling cycle after flowing out of the cooler. The power electronic device cooling system has a good cooling effect, and is high in cooling efficiency, small in equipment size and low in noise, and moreover, the power electronic device may be located in a sealed environment and prevented from influence of dust, and is internally clean and long in operation life.
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公开(公告)号：US10103586B2
公开(公告)日：2018-10-16
申请号：US14912032
申请日：2014-08-01
发明人： Zhao Fan , Yabin Ding , Ying Chen , Huaican Liu
摘要： A stator and a rotor are mounted inside a case of the permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity, are disposed in teeth of a stator core of the stator, and each axial ventilation hole is a taper hole extending in a height direction of each tooth. The width of one end of the axial ventilation hole, which is close to a head of the tooth, is greater than the width of the other end of the axial ventilation hole, which is close to a root of the tooth. The taper holes enable fluid to fully carry out exchange heat at the teeth where heat is generated most intensively.
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