Electrical insulation sealing structure of oil-cooled permanent magnet motor and assembly method

A technology of permanent magnet motor and sealing structure, which is applied in the direction of electromechanical devices, winding insulation shape/style/structure, manufacturing motor generators, etc., and can solve problems such as bulky, insufficient cooling of the stator, and complex motor casings. Achieve the effect of small size, good stator cooling effect and light weight

Active Publication Date: 2019-10-08
HARBIN DONGAN ENGINE GRP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The oil-cooled motor housing generally adopts a sandwich composite structure. A hollow interlayer is designed between the outer surface and the inner surface of the motor housing. The hollow interlayer passes through cooling oil or cooling water. The stator cavity (inner cavity) has no oil. The part of the shell is connected with the outside world, and the electrical insulation and sealing are easy to realize. The disadvantages are that the motor shell is complex, bulky, and the cooling of the stator is insufficient.

Method used

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  • Electrical insulation sealing structure of oil-cooled permanent magnet motor and assembly method
  • Electrical insulation sealing structure of oil-cooled permanent magnet motor and assembly method
  • Electrical insulation sealing structure of oil-cooled permanent magnet motor and assembly method

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Embodiment Construction

[0019] The electric insulation and sealing structure of the oil-cooled permanent magnet motor ( figure 1 ) consists of compression nut 1 (two), metal flat washer 2, positioning backing plate 3, lead terminal with groove 4, positioning insulator 5, O-ring rubber ring 6, and inner insulator 7. The compression nuts 1 (two) and metal flat washers 2 are made of copper material with good electrical conductivity, and are used to effectively fix the electrical insulation and sealing structure components of the oil-cooled permanent magnet motor on the motor On the housing, the positioning backing plate 3 ( figure 2 ) is a symmetrical trimming circle, which is used for the circumferential positioning of the positioning backing plate 3 and the positioning insulator 5; the inner hole of the positioning backing plate 3 has two teeth with a width of δb, and the two teeth Cooperate with the two grooves of the lead terminal 4 with the groove, and prevent the lead terminal 4 with the groove ...

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Abstract

The invention belongs to the technical field of motors, and relates to an electrical insulation sealing structure of an oil-cooled permanent magnet motor and an assembly method. The electrical insulation sealing structure comprises two compression nuts (1), a metal flat gasket (2), a positioning backing plate (3), a slotted lead terminal (4), a positioning insulator (5), an O-shaped rubber ring (6) and an inner insulator (7). The electrical insulation sealing structure of the oil-cooled permanent magnet motor is applicable to a stator oil immersed high-speed permanent magnet motor, and the motor adopting the structure has the advantages of simple shell structure, small volume, light weight and good stator cooling effect; and the electrical insulation structure of the oil-cooled permanent magnet motor has a function of preventing a lead terminal from rotating, not only can realize the electrical insulation of a stator lead-out wire and the shell, but also can realize the good sealing ofcooling oil in a stator inner cavity.

Description

technical field [0001] The invention belongs to the technical field of motors, and relates to an electric insulation and sealing structure and an assembly method of an oil-cooled permanent magnet motor. Background technique [0002] The oil-cooled motor housing generally adopts a sandwich composite structure. A hollow interlayer is designed between the outer surface and the inner surface of the motor housing. The hollow interlayer passes through cooling oil or cooling water. The stator cavity (inner cavity) has no oil. At the place, the parts of the shell are connected with the outside world, and the electrical insulation and sealing are easy to realize. The disadvantages are that the motor shell is complex, bulky, and the cooling of the stator is insufficient. Contents of the invention [0003] The purpose of the present invention is to construct an oil-cooled permanent magnet motor electrical insulation and sealing structure, through the positioning of the positioning in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/34H02K5/22H02K15/00
CPCH02K3/345H02K5/225H02K15/00
Inventor 耿加民何民潘振宇吕亚洲王永恒仝云峰万思博王舒
Owner HARBIN DONGAN ENGINE GRP
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