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Harness arrangement structure of vehicle

A wire harness and wire technology, which is applied in the field of wire harness arrangement structure, can solve the problems that no special consideration is made, and the high-voltage battery power supply cannot be cut off, so as to achieve the effect of improving safety

Active Publication Date: 2013-12-04
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the second harness is damaged and touches the vehicle body (ground), the main relay remains energized even if the switchgear is turned on, making it impossible to cut off the power supply from the high-voltage battery
[0007] In addition, Japanese Patent Laid-Open Publication No. 2010-12868 discloses a protection structure for a wiring harness that connects a high-voltage battery installed under the bottom plate to an inverter, but the disconnection or grounding of the power supply circuit to the main relay , without special consideration

Method used

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  • Harness arrangement structure of vehicle
  • Harness arrangement structure of vehicle
  • Harness arrangement structure of vehicle

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Embodiment Construction

[0036] exist figure 1 In , V is a vehicle, and the outline of the vehicle V is shown by a dotted line. Inside the vehicle V, a vehicle compartment 1 and an engine compartment 2 are provided, and a dash panel 3 is provided between the vehicle compartment 1 and the engine compartment 2 to separate them. In addition, in the present embodiment, the vehicle V is an electric vehicle. Therefore, there is no engine (internal combustion engine) in the vehicle V, but in this specification, the large storage space in front of the vehicle cabin that houses the power unit and the like is conventionally called an engine room.

[0037] Inside the engine room 2, a traveling motor 5 is provided. The output of the traveling motor 5 is transmitted to the left and right front wheels 8 as drive wheels via the transaxle 6 , the left and right drive shafts 7 , and the like. In addition, the rear wheels 9 are driven wheels that are not driven by the traveling motor 5 . In the engine room 2, an in...

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PUM

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Abstract

A feeder circuit for a main relay to control ON of OFF of an electric supply from a high-voltage battery is constituted at least by a first harness, the main relay, a second harness and switch means which are connected in series from a plus-terminal side of a low-voltage battery to a vehicle-body ground side. The first harness and the second harness are arranged to be adjacent to each other in a specified range having a specified length so that both thereof in the above-described specified range are damaged in a vehicle collision or the like.

Description

technical field [0001] The present invention relates to an arrangement structure of a wire harness. Background technique [0002] Recently, hybrid vehicles and electric vehicles equipped with running motors are rapidly spreading. An electric vehicle is provided with a high-voltage battery for supplying power to a running motor in addition to a normal low-voltage battery. The power supply of the high-voltage battery is turned on and off by the main relay, and the main relay (more specifically, its relay coil) is driven by using the low-voltage battery as a power source. [0003] In order to cut off the power supply from the high-voltage battery by turning off the main relay when an abnormal situation such as a vehicle collision occurs, a switch device is provided in the middle of the power supply circuit of the main relay. More specifically, the switching device is provided between the main relay and the low voltage battery. As a switching device, semiconductor elements (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L50/64
CPCB60R16/0215Y02E60/10H01M50/204H01M50/249B60L50/64Y02T10/70
Inventor 前本敏文阿南义明村井健佐藤宏树松川刚志末富隆雅上筱贤治濑尾宣英
Owner MAZDA MOTOR CORP
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