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Rotor assembly, motor and vehicle

A rotor and assembly technology, applied in the field of vehicles, can solve the problems of inability to meet high-performance motors, low cooling and lubrication efficiency, etc.

Pending Publication Date: 2022-04-29
WUXI INFIMOTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cooling and lubrication scheme mainly has the problem of low cooling and lubrication efficiency and cannot meet the requirements of high-performance motors

Method used

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  • Rotor assembly, motor and vehicle
  • Rotor assembly, motor and vehicle
  • Rotor assembly, motor and vehicle

Examples

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Embodiment Construction

[0040] The technical solutions herein will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used for explaining the text, rather than limiting the text.

[0041] In one embodiment of this application, as Figure 1 to Figure 4 As shown, a rotor assembly is provided. The rotor assembly includes a rotor core 2 and a rotor shaft 1 , and the rotor core 2 is sleeved on the outer periphery of the rotor shaft 1 . The rotor shaft 1 includes a shaft body 11 and an oil passage groove 12 disposed on the shaft body 11 . The shaft section of the shaft body 11 is provided with an oil inlet channel, and the shaft body 11 can be set as a hollow shaft as a whole. The shaft body 11 can also be a part of the hollow shaft section processed in the partial shaft section of the solid shaft, and the passage in the part of the hollow shaft section is used as an oil inl...

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PUM

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Abstract

The invention provides a rotor assembly, a motor and a vehicle. The rotor assembly comprises a rotor core and a rotor shaft, and the rotor core sleeves the periphery of the rotor shaft; the rotor shaft comprises a shaft body and an oil passing groove. The shaft body comprises an oil inlet section and a matching section, the oil inlet section is provided with an oil inlet channel extending in the axial direction, the rotor iron core is arranged on the peripheral side of the matching section in a sleeving mode, the matching section is provided with an oil inlet inner cavity, the oil inlet channel is communicated with the oil inlet inner cavity, the oil passing groove is formed in the side wall of the matching section, and the oil passing groove is communicated with the oil inlet channel. The oil passing groove is communicated with the oil inlet inner cavity, the oil passing groove penetrates through the side wall of the matching section, and at least part of the inner surface of the rotor iron core is exposed in the oil passing groove, so that cooling lubricating oil passing through the rotor shaft can be guided to the inner surface of the rotor iron core through the oil passing groove; the cooling and lubricating efficiency of the rotor assembly is remarkably improved.

Description

technical field [0001] This article relates to but is not limited to the technical field of vehicles, and in particular relates to a rotor assembly, a motor and a vehicle. Background technique [0002] As one of the core components of the power output of electric vehicles, the motor is required to have high power density, high torque density, high system efficiency, light weight, low cost and better mass production process, etc., in order to meet the needs of users for electric, hybrid The high performance and low cost requirements of electric vehicles. [0003] Cooling lubrication is very important for motors, especially on high performance motors. High-performance motors generate a lot of heat, and cooling and lubrication are required to reduce the operating temperature to the range that the motor sub-parts can bear. Taking the AC asynchronous motor as an example, the main heat-generating components in the motor are stator winding, stator core, rotor core and permanent m...

Claims

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Application Information

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IPC IPC(8): H02K1/32H02K9/19F16C3/02F16N21/00
CPCH02K1/32H02K9/19F16C3/02F16N21/00F16N2210/18
Inventor 倪良军林霄喆谭艳军方亮张胜川韩韬于海生王瑞平肖逸阁
Owner WUXI INFIMOTION TECH CO LTD
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