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Conductive bearing

A conductive bearing, conductive ground technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve problems such as bearing electrical corrosion

Inactive Publication Date: 2020-10-20
HUNAN CSR TIMES ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the solutions in the prior art, the present invention provides a conductive bearing, which uses the conductive attachment on the bearing to directly lead the discharge current generated by the motor shaft to the casing, so that the bearing will not be damaged, thereby solving the problem of bearing electrical discharge. corrosion problem

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  • Conductive bearing

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings, and the features of the present invention will be further revealed in the following detailed description.

[0028] The transmission system of a pure electric vehicle is usually composed of a motor, a gearbox, a drive shaft and a rear axle. There are many bearings in the transmission system components, and the quality of each bearing used is also different, which causes the discharge current of the motor shaft to pass through the bearing with the smallest resistance value, resulting in bearing damage. Even if all bearings use insulated bearings, the same phenomenon will still occur after the vehicle has been in operation for a long time.

[0029] As mentioned before, when the motor is running, the motor shaft will generate shaft voltage. This shaft voltage creates a discharge current, which is characterized by looping along the path of least resistance. When the curre...

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Abstract

The invention provides a conductive bearing as well as a permanent magnet motor adopting the conductive bearing and a vehicle. The conductive bearing comprises a bearing inner ring, a bearing outer ring, a ball and a conductive accessory, wherein the ball is arranged between the bearing inner ring and the bearing outer ring; and the conductive accessory is conductively connected with the bearing outer ring and a rotating shaft borne by the conductive bearing.

Description

technical field [0001] The present invention relates to a bearing, and more particularly, to a conductive bearing and a permanent magnet motor and a vehicle using the conductive bearing. Background technique [0002] With the development of new energy vehicles, battery technology is becoming more and more mature and charging devices are becoming more and more perfect, the use of pure electric vehicles is increasing year by year. Pure electric vehicles have the characteristics of less air pollution, low noise, and high comfort, and are increasingly used in urban buses. [0003] As passengers have higher and higher requirements for the comfort of buses, pure electric vehicles have no engines, and the transmission system (including motors, gearboxes, rear axles, etc.) is the main source of vibration and noise. Therefore, the NVH (noise, vibration and harshness) of the transmission system is closely related to the comfort of pure electric vehicles, and the noise and abnormal no...

Claims

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Application Information

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IPC IPC(8): F16C19/52F16C33/58F16C33/62
CPCF16C19/52F16C33/58F16C33/62
Inventor 田景笔赵铃彭再武石魏刘文弢张昊田冠军李明王澍龙熊琦玮罗宏亮张领向科鹏罗骁李政颖谢权
Owner HUNAN CSR TIMES ELECTRIC VEHICLE