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Vehicle drive device

A vehicle driving device and electric motor technology, which is applied in the direction of power device, transmission device, electric power device, etc., and can solve the problems of easy and large motor loss

Active Publication Date: 2019-07-05
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As in the device described in Patent Document 1, when the rotation axis of the motor faces the vehicle height direction, the rotor of the motor needs to be supported by bearings so that the rotor of the motor can rotate around the shaft and bear the gravity of the rotor in the direction of gravity. Therefore, the motor The loss caused by the bearing is easy to increase

Method used

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Embodiment Construction

[0016] Below, refer to Figure 1 to Figure 7 One embodiment of the present invention will be described. figure 1 It is a front view schematically showing the configuration of main parts of the vehicle drive device 100 according to one embodiment of the present invention. This vehicle drive device 100 has an electric motor 1 and outputs travel drive torque obtained by using the electric motor 1 as a drive source to drive wheels of the vehicle. Therefore, the vehicle drive device 100 is mounted on a vehicle having the electric motor 1 as a driving source, such as an electric vehicle or a hybrid vehicle. In addition, the electric motor 1 can also be used as a generator.

[0017] figure 2 It is a side view showing an example in which the vehicle drive device 100 is mounted on a vehicle. Here, an example in which the vehicle drive device 100 is arranged between the left and right front wheels 103 and used as a front wheel drive device is shown. In addition, the vehicle drive ...

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Abstract

A vehicle drive device includes: a motor (1) having a rotor (10) that rotates about an axis (CL 1) in the vertical direction and a stator (20) disposed around the rotor (10); a shaft (6) which is provided inside the rotor (10) and is rotatable about an axis (CL 1); a torque transmission mechanism (50) that transmits the torque of the electric motor (1) to the shaft (6); a housing (30) that surrounds the stator (20); and a bearing (42) which is attached to the bottom wall (32) of the housing (30), supports the bottom of the rotor (10), and is capable of rotating the rotor (10) about the axis (CL 1) while receiving the weight of the rotor (10).

Description

technical field [0001] The invention relates to a vehicle driving device which uses an electric motor to drive the vehicle. Background technique [0002] As such a device, a device is conventionally known in which the motor is arranged below the vehicle seat with the rotation axis of the motor facing the vehicle height direction, and the torque of the motor is utilized by a shaft and a shaft mounted at the center of the rotor of the motor. A device that transmits a pair of bevel gears to the propeller shaft. Such a device is described in Patent Document 1, for example. [0003] As in the device described in Patent Document 1, when the rotation axis of the motor faces the vehicle height direction, the rotor of the motor needs to be supported by bearings so that the rotor of the motor can rotate around the shaft and bear the gravity of the rotor in the direction of gravity. Therefore, the motor The wear and tear caused by bearings tends to increase. [0004] prior art liter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/10H02K7/116H02K5/16H02K5/173B60K1/00F16H1/28F16H57/021
CPCH02K7/10H02K7/116H02K5/16H02K5/173B60K1/00F16H1/28F16H57/021H02K7/006H02K7/085B60K2001/001B60K6/26B60K7/0007B60K6/405B60L2240/423B60K2007/0076B60K2007/0084B60K2007/0061B60K6/42
Inventor A·皮丁
Owner HONDA MOTOR CO LTD