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Drive device for vehicle

A technology for driving devices and vehicles, which is applied to transmission devices, electrical devices, power devices, etc., can solve problems such as inability to properly cool rotating electrical machines, lubricate rotating parts, and increase oil stirring resistance.

Active Publication Date: 2020-05-08
AISIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the oil stored in the internal space of the casing is insufficient, cooling of the stator of the rotating electrical machine and lubrication of rotating parts such as the rotor cannot be properly performed.
On the other hand, when too much oil is accumulated in the inner space of the casing, the stirring resistance of the oil by rotating parts such as the rotor of the rotating electric machine may increase.

Method used

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  • Drive device for vehicle
  • Drive device for vehicle
  • Drive device for vehicle

Examples

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Embodiment Construction

[0024] Hereinafter, a vehicle drive device 100 according to an embodiment of the vehicle drive device will be described with reference to the drawings. figure 1 is an axial sectional view of the vehicle drive device 100, figure 2 is a schematic diagram of the vehicle drive device 100 . The vehicle drive device 100 is, for example, mounted on a hybrid vehicle that uses an internal combustion engine and a rotating electric machine as a driving force source for the first wheels 501 and the second wheels 502, and uses a rotating electric machine as the driving force for the first wheels 501 and the second wheels 502. The driving device of the electric vehicle of the source. Such as figure 1 as well as figure 2 As shown, the vehicle driving device 100 includes only the rotary electric machine 2 as a driving force source for the first wheel 501 and the second wheel 502 . In the case of a four-wheeled vehicle with two-wheel drive, an electric vehicle can thus be realized. In a...

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PUM

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Abstract

A drive device (100) for a vehicle comprises: a rotary electric machine (2); a speed reduction device (3); a differential gear device (4); a case (1) housing the above; and an oil circulation mechanism (8). The rotary electric machine (2) includes: a cylindrical stator (24); and a rotor (21) arranged on a radially inner side (R2) relative to the stator (24). The speed reduction device (3) and thedifferential gear device (4) are arranged coaxially with the rotary electric machine (2). An oil (7) is stored inside the case (1). The oil circulation mechanism (8) circulates the oil (7) inside thecase (1). In a steady circulation state in which the circulation state of the oil (7) is in a steady state, the oil surface (7A) of the oil (7) is located on a lower side (V2) than a lower end of theinner circumferential surface (24a) of the stator (24) and on an upper side (V1) than a lower end of the outer circumferential surface (24b) of the stator (24).

Description

technical field [0001] The present invention relates to a rotary electric machine as a driving force source for a first wheel and a second wheel, a speed reduction device for decelerating the rotation of the rotary electric machine, and transmission of the driving force from the rotary electric machine transmitted through the speed reduction device to the first wheel and the second wheel. A differential gear unit for wheel distribution, and a vehicle drive unit for a case that accommodates them. Background technique [0002] The following Patent Document 1 discloses a vehicle drive device configured to supply oil through an oil pump to a rotating electric machine, a reduction gear unit, and a differential gear unit arranged in a housing, and to lubricate and cool them. [0003] In such a vehicle drive device, it is a problem to appropriately set the amount of oil in the casing. For example, when the oil stored in the internal space of the casing is insufficient, cooling of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04B60K17/04B60K17/16B60L3/00F16H1/28F16H48/06H02K9/19
CPCH02K9/19F16H57/0483F16H57/0476F16H57/0486F16H57/0456F16H57/0471F16H57/0479F16H57/043F16H57/0409F16H57/0447B60K1/00B60K2001/001F16H1/46H02K7/006H02K1/32H02K2213/03H02K7/116B60Y2306/03Y02T10/72B60K17/16B60L15/2036F16H1/28F16H48/06F16H57/04
Inventor 须山大树三治广明市冈光广川口裕贵
Owner AISIN CORP