In-vehicle electronic device and vehicle having the electronic device

Patent metadata

Field	Value
Publication number	US-9258934-B2
Application number	US-201314404391-A
Country	US
Kind code	B2
Filing date	Apr 12, 2013
Priority date	May 29, 2012
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

An in-vehicle electronic device is provided which can ensure resistance to static electricity for the in-vehicle electronic device covered with a resin case, is more downsized smaller in the number of components, and inexpensive. An in-vehicle electronic device 43 includes: a resin housing (resin case) 5 ; a control board 7 that is covered with the housing, and accommodated within the housing a battery harness 27 that is a power wiring which supplies power to the control board; a signal harness 31 that is an input/output signal wiring that transmits an input/output signal to the control board; and a metal bracket 1 that fixes the resin housing to a vehicle main body. In the device, a distance between a projection 35 of the metal bracket 1 and the battery harness 27 is set to be shorter than a distance between the projection 25 of the metal bracket 1 and the signal harness 31 to form a discharge gap 33.

First claim

The invention claimed is:

1. An in-vehicle electronic device comprising: a resin housing; a control board that is covered with the housing, and accommodated within the housing; a power wiring that supplies power to the control board; an input/output signal wiring that transmits an input/output signal to the control board; and a metal bracket which fixes the resin housing to a vehicle main body,
wherein a distance between the metal bracket and the power wiring is set to be shorter than a distance between the metal bracket and the input/output signal wiring to form a discharge gap.

2. The in-vehicle electronic device according to claim 1 , wherein the power wiring is connected to a vehicle GND or a vehicle battery (negative electrode).

3. The in-vehicle electronic device according to claim 1 , wherein the power wiring is connected to a vehicle battery (positive electrode).

4. The in-vehicle electronic device according to claim 1 , wherein the metal bracket has a structure serving as the vehicle main body.

5. The in-vehicle electronic device according to claim 1 , wherein the metal bracket has a structure serving as a bracket of a load device integrated with the in-vehicle electronic device.

6. The in-vehicle electronic device according claim 1 , wherein the power wiring is connected to the vehicle battery.

Assignees

• Hitachi Automotive Systems Ltd

Inventors

• Saito Masashi

Classifications

• B60R16/0239 Primary

  Electronic boxes · CPC title

• H05K9/0067

  Devices for protecting against damage from electrostatic discharge · CPC title

• H05K5/0073

  having specific features for mounting the housing on an external structure · CPC title

• B60R16/02

  electric {constitutive elements} · CPC title

• H02G3/10

  for surface mounting on a wall · CPC title