US 6,650,087 B2Granted

Vehicle having an electrical connection box and electrical connection box for use in the vehicle

AssigneeSumitomo Wiring Systems, Ltd.

InventorsEriko Yuasa, Shuji Yamakawa, Shinshu Kato

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Abstract

An electrical connection box is provided for a vehicle which has a low-voltage battery of maximum output voltage selected from 14V and 28V, and a high-voltage battery of output voltage higher than that of said first battery structure. The electrical connection box has an insulation plate and, fixed on one face of said insulation plate, first bus bars connected in use to the first battery and second bus bars connected in use to the second battery so that the first and second bus bars are at different potentials. In order to reduce a risk of electrical leakage paths on the insulation plate, at least one of the following features is present: (i) the first bus bars and the second bus bars are separated on the face of the insulation plate by an air insulation zone of width in the range of from about 1 mm to about 30 mm, (ii) an insulation wall stands up on the insulation plate between the first bus bars and the second bus bars, (iii) the second bus bars are embedded in the insulating material.

Claims24

Dependent claims

A vehicle comprising:

an internal combustion engine providing motive drive of the vehicle;
a first, low-voltage battery structure comprising at least one secondary battery, and having a nominal maximum output voltage selected from a range of from about 14V to about 28V;
a second, high-voltage battery structure comprising at least one secondary battery, and having a nominal maximum output voltage higher than that of said first battery structure and not more than 200V;
a plurality of electrical devices powered by said first and second battery structures;
and
an electrical connection box containing an electrical circuit therein which effects connection between said first and second battery structures and said plurality of electrical devices said electrical circuit having an insulation plate and, fixed on one face of said insulation plate, at least one first bus bar connected to said first battery structure and at least one second bus bar connected to said second battery structure, whereby in operation said first and second bus bars are at different potentials,
wherein, in order to reduce a risk of electrical leakage paths on said insulation plate, at least one of the following features is present:
(i) said at least one first bus bar and said at least one second bus bar are separated on said face of said insulation plate by an air insulation zone containing no bus bars and having a width in a range of from about 1 mm to about 30 mm;
(ii) an insulation wall is upstanding from said face of said insulation plate between said at least one first bus bar and said at least one second bus bar;
and
(iii) said at least one second bus bar is at least partially embedded in insulating material including at least one of synthetic resin and grease, while said at least one first bus bar is exposed on said face of said insulation plate.

8 more elements

An electrical connection box adapted for use in a vehicle which has a first, low-voltage battery structure comprising at least one secondary battery, and having a nominal maximum output voltage selected from a range of from about 14V to about 28V, and a second, high-voltage battery structure comprising at least one secondary battery, and having a nominal maximum output voltage higher than that of said first battery structure and not more than 200V, said electrical connection box containing an electrical circuit having an insulation plate and, fixed on one face of said insulation plate, at least one first bus bar adapted to be connected in use to said first battery structure and at least one second bus bar adapted to be connected in use to said second battery structure, whereby in operation said first and second bus bars are at different potentials,

wherein, in order to reduce a risk of electrical leakage paths on said insulation plate, at least one of the following features is present:
(i) said at least one first bus bar and said at least one second bus bar are separated on said face of said insulation plate by an air insulation zone containing no bus bars and having a width in the range of from about 1 mm to about 30 mm,
(ii) an insulation wall is upstanding from said face of said insulation plate between said at least one first bus bar and said at least one second bus bar,
(iii) said at least one second bus bar is at least partially embedded in insulating material including at least one synthetic resin and grease, while said at least one first bus is exposed on said face of said insulation plate.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/897,906Filed 5 Jul 2001
Priority: JP 2000-2022354 Jul 2000
Published: US 2002/0003377 A110 Jan 2002
Granted: 18 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H05K 1/0256
High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating…
H01R 9/226
Bases, e.g. strip, block, panel: comprising a plurality of conductive flat strips providing connection between wires or components
H05K 7/026
Arrangements of circuit components or wiring on supporting structure: multiple connections subassemblies
H01R 2201/26
Connectors or connections adapted for particular applications: for vehicles