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Electric vehicle

A technology for electric vehicles and rotating motors, applied in electric vehicles, hybrid vehicles, motor vehicles, etc., can solve problems such as short circuit and grounding of rotating motors, and achieve the effect of preventing short circuit or grounding and reliable protection

Active Publication Date: 2014-12-17
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Here, if the case is a conductive shell such as aluminum, fragments of the damaged side cover may come into contact with conductive parts such as windings or bus bars of the rotating electrical machine, which may cause a short circuit or grounding of the rotating electrical machine.
In addition, when part of the side frame penetrates into the case from the damaged part of the side cover, the part of the side frame comes into contact with the conductive part, which may cause a short circuit or grounding of the rotating electric machine.

Method used

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Embodiment Construction

[0059] Below, refer to Figure 1 to Figure 7 , a preferred embodiment of the electric vehicle according to the present invention will be described in detail.

[0060] [Structure of the first embodiment]

[0061] refer to Figure 1 to Figure 5 Next, an electric powered vehicle 10A (hereinafter also referred to as "vehicle 10A") according to the first embodiment will be described.

[0062] Such as figure 1 As shown, a vehicle 10A has a travel motor 12 (hereinafter also referred to as "motor 12") as a rotating electrical machine. The electric motor 12 is a driving source for generating driving force of the vehicle 10A. That is, electric motor 12 is, for example, a three-phase AC brushless type, and generates driving force of vehicle 10A based on electric power supplied from a battery (not shown) via an inverter. In addition, the electric motor 12 also functions as a generator, and outputs electric power (regenerative power) generated by regeneration to the battery, thereby c...

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Abstract

The invention provides an electric vehicle capable of preventing the short circuit or grounding of a rotation motor even a side cover of the electric vehicle is damaged due to a side frame or one portion of the side frame is intruded into a shell due to the damage of the side cover. In a vehicle (10A) as the electric vehicle, a cover component (34) is arranged between a motor (12) and a side cover (18b) in a motor shell (18). Observing from the rotating shaft direction (X1, X2), the cover component (34) covers a coil end (52) and a portion of a motor rotor (14). In the condition, a first shortest distance (d1) between the motor rotor (14) and the cover component (34) along the rotating shaft direction (X1, X2) is set shorter than a second shortest distance (d2) between the coil end (52) and the cover component (34) along the rotating shaft direction (X1, X2) (d1<d2).

Description

technical field [0001] The present invention relates to an electric vehicle including a rotating electric machine accommodated in a case, a transmission coupled to and driven by a rotating shaft of the rotating electric machine, and side frames extending in the front-rear direction of the vehicle. Background technique [0002] Patent Document 1 discloses a structure in which a transmission is coupled to a rotating shaft of a rotating electrical machine to drive the transmission, and the rotating electrical machine and the transmission are accommodated in a housing. [0003] 【Prior technical literature】 [0004] 【Patent Literature】 [0005] [Patent Document 1] International Publication No. 2012 / 046307 Pamphlet [0006] 【Summary of Invention】 [0007] 【Problems to be solved by the invention】 [0008] However, in an electric vehicle having a rotating electric machine and a transmission, when the rotating electric machine is disposed outside the transmission in the vehicle w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00H02K5/04
CPCY02T10/62Y02T10/64
Inventor 河合则和
Owner HONDA MOTOR CO LTD
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