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Novel stator core for electric automobile oil-cooled motor

A technology for stator iron cores and electric vehicles, applied in electric vehicles, motors, vehicle parts, etc., can solve the problems of inability to use ultra-thin silicon steel sheets, inability to stack iron cores, large deformation, etc., to improve material utilization, The effect of improving motor efficiency and reducing iron consumption

Pending Publication Date: 2021-04-30
ZHEJIANG LEAPMOTOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: too thin a silicon steel sheet will cause too much deformation after stamping, and it cannot be stacked into an iron core. Silicon steel sheet

Method used

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  • Novel stator core for electric automobile oil-cooled motor
  • Novel stator core for electric automobile oil-cooled motor
  • Novel stator core for electric automobile oil-cooled motor

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] The specific embodiments of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings.

[0022] A new type of stator core for electric vehicle oil-cooled motor, such as figure 1 As shown, it includes a stator core, a permanent magnet rotor and a rotating shaft. The permanent magnet rotor and the stator core are sequentially sleeved on the rotating shaft. The stator core includes several stator cores a1, several stator cores b2 and stator core c3 , the number of stator core a1 and stator core b2 is the same, and the stator core a1 and stator core b2 are distributed on both sides of the stator core c3 in pairs. The stator core a1 and the stator core b2 have the same number and are distributed in pairs on both sides of the stator core c3, that is, when the stator core a1 and the stator core b2 are a pair, the stator core c3 is located between the stator core a1 and the stator core b2. In the...

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PUM

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Abstract

The invention discloses a novel stator iron core for an electric automobile oil-cooled motor, and the stator core comprises a plurality of stator cores a, a plurality of stator cores b, and a stator core c, and each stator core a is in staggered rotating fit with one corresponding stator core b, each stator core a, each stator core b and the stator core c respectively comprise a plurality of iron core splicing blocks, the iron core splicing block of each stator core a and the iron core splicing block of each stator core b are respectively provided with a plurality of oil holes, and the number of the iron core splicing blocks of each stator core a, each stator core b and the stator core c is equal. Each stator core of the oil-cooled motor is formed by splicing the iron core splicing blocks, so that the material utilization rate of the stator cores is improved, the volume of a unit silicon steel sheet is reduced, the stator cores can use ultrathin silicon steel sheets with a thickness of 0.2mm, the iron loss of the stator cores is further reduced, and the motor efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a stator core for a novel electric vehicle oil-cooled electric motor. Background technique [0002] There are copper loss, iron loss and other stray losses during the operation of the motor, which will cause the temperature rise of the motor to rise continuously. When the temperature of the motor exceeds the limit operating temperature of the motor insulation material, the motor will be short-circuited and burned, so the motor is cooled. Heat dissipation is one of the key factors affecting the reliability of motors; energy saving and emission reduction is the eternal pursuit of human beings, and the efficiency of motors directly affects the efficiency of the entire electric drive power assembly, thereby affecting the cruising range of the vehicle; the cost of the motor accounts for the entire electric drive force 20%~30% of the assembly cost, so reducing the cost of the m...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K1/20H02K1/18
CPCH02K1/12H02K1/20H02K1/18Y02T10/64
Inventor 梁飞飞汤卫平岳卫东刘强巫存
Owner ZHEJIANG LEAPMOTOR TECH CO LTD