Vehicular control device

Patent metadata

Field	Value
Publication number	US-10499514-B2
Application number	US-201515565698-A
Country	US
Kind code	B2
Filing date	May 12, 2015
Priority date	May 12, 2015
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

A vehicular control device includes: one housing to contain modules having electronic components; a main circuit wiring connecting a first pair of modules; a main circuit wiring connecting a second pair of modules; and a main circuit wiring connecting a third pair of modules. The main circuit wiring, in which a maximum value of current flowing therein is greater than or equal to a first threshold, extends to an exterior of the housing.

First claim

The invention claimed is:

1. A vehicular control device comprising:
a housing to contain a plurality of modules having electronic components;
a main circuit wiring to interconnect the modules contained in the housing, and the main circuit wiring extending exterior of the housing; and
a covering member directly attached to the main circuit wiring that extends exterior of the housing, wherein
the covering member is waterproof, electrically insulating and has thermal conductivity;
the portion of the main circuit wiring extending to the exterior of the housing is disposed apart from the housing; and
when the vehicular control device is attached to a vehicle main body via an attachment member, the portion of the main circuit wiring is disposed within a range such that a distance from one surface of the vehicular control device facing the vehicle main body is less than or equal to a length of the attachment member in a direction of attachment of the vehicular control device via the attachment member to the vehicle main body.

2. A vehicular control device comprising:
a housing to contain a plurality of modules having electronic components;
a main circuit wiring to interconnect the modules contained in the housing, and the main circuit wiring extending exterior of the housing;
a covering member directly attached to the main circuit wiring that extends exterior of the housing;
an opening formed in the housing and facing one surface of a module of the modules, the one surface having a connecting part connected to the main circuit wiring, the opening having an exterior shape smaller than an exterior shape of the one surface of the module of the plurality of modules; and
a waterproofing member disposed along the opening, contacting the housing and the one surface of the module, and having a waterproofing function, wherein
the covering member is waterproof, electrically insulating and has thermal conductivity; and
the main circuit wiring connects to the connecting part through the opening, and
the connecting part is waterproof.

3. A vehicular control device comprising:
a housing to contain a plurality of modules having electronic components;
a main circuit wiring to interconnect the modules contained in the housing, and the main circuit wiring extending exterior of the housing; and
a covering member directly attached to the main circuit wiring that extends exterior of the housing, wherein
the covering member is waterproof, electrically insulating and has thermal conductivity; and
an electronic component of the electronic components is disposed in the interior of the module at a distance from the housing based on a heat-generation amount of the electronic component, an electrical conductivity of the housing and a desired heat dissipation performance of the vehicle control device.

4. The vehicular control device according to claim 1 , wherein an electronic component of the electronic components having a relatively high heat-generation amount is arranged so that a surface having a largest surface area is disposed facing one surface of the housing positioned most closely to the electronic component.

5. The vehicular control device according to claim 2 , wherein an electronic component of the electronic components having a relatively high heat-generation amount is arranged so that a surface having a largest surface area is disposed facing one surface of the housing positioned most closely to the electronic component.

6. The vehicular control device according to claim 3 , wherein an electronic component of the electronic components having a relatively high heat-generation amount is arranged so that a surface having a largest surface area is disposed facing one surface of the housing positioned most closely to the electronic component.

7. The vehicular control device according to claim 4 , wherein an exterior surface of the electronic component other than the surface having a largest surface area is covered by a thermal insulation member.

8. The vehicular control device according to claim 5 , wherein an exterior surface of the electronic component other than the surface having a largest surface area is covered by a thermal insulation member.

9. The vehicular control device according to claim 6 , wherein an exterior surface of the electronic component other than the surface having a largest surface area is covered by a thermal insulation member.

10. The vehicular control device according to claim 1 , further comprising a fin extending from an exterior surface of the housing.

11. The vehicular control device according to claim 2 , further comprising a fin extending from an exterior surface of the housing.

12. The vehicular control device according to claim 3 , further comprising a fin extending from an exterior surface of the housing.

Assignees

• Mitsubishi Electric Corp

Inventors

• Miyamoto Naoya
• Mamoto Yasuaki

Classifications

• B61C3/00

  Electric locomotives or railcars (characterised by power transmission B61C9/00; electrical features B60L; H02) · CPC title

• B60R16/0231

  Circuits relating to the driving or the functioning of the vehicle (monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P) · CPC title

• H05K7/20409

  Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing · CPC title

• B61C17/00

  Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems · CPC title

• H05K7/2089

  for power electronics, e.g. for inverters for controlling motor · CPC title