Electric power distributor for use in motor vehicle
First Claim
1. An electric power distributor to be mounted on a motor vehicle for distributing electric power from a power source installed in the motor vehicle to a plurality of electric load units equipped in the motor vehicle, the power electric distributor comprising:
- a plurality of semiconductor operative elements which are incorporated in a power supply circuit from the power source to the electric load units;
a control circuit board including a control circuit for controlling operation of the semiconductor operative elements, the control circuit board being disposed to cover the plurality of semiconductor operative elements with a space between the control circuit board and the semiconductor operative elements;
a heat transfer layer attached to the control circuit board on a side of the control circuit board facing the semiconductor operative elements;
a housing for enclosing the semiconductor operative elements and the control circuit board;
a heat releasing member attached to the semiconductor operative elements and exposed to outside of the housing to release heat caused on the semiconductor operative elements; and
a heat transfer member heat-conductively connected between the heat transfer layer and the heat releasing member to transfer heat received by the heat transfer layer to the heat releasing member.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric power distributor mountable on a motor vehicle for distributing power from a power source installed in the motor vehicle to a plurality of electric load units equipped in the vehicle has a plurality of semiconductor operative elements which are incorporated in a power supply circuit from the power source to the electric load units; a control circuit board incorporated with a control circuit for controlling an operation of the semiconductor operative elements; a housing for encasing the semiconductor operative elements and the control circuit board therein; and a heat releasing member provided on an outer surface of the housing to release heat transferred from the semiconductor operative elements outside of the housing. The control circuit board is arranged at such a position as to be mounted over the semiconductor operative elements from a side of the housing opposite to the mounted side of the heat releasing member with respect to the semiconductor operative elements, and is formed with a heat transfer layer on a side of the control circuit board as opposed to the semiconductor operative elements. The heat transfer layer and the heat releasing member are connected by a heat transfer member.
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Citations
9 Claims
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1. An electric power distributor to be mounted on a motor vehicle for distributing electric power from a power source installed in the motor vehicle to a plurality of electric load units equipped in the motor vehicle, the power electric distributor comprising:
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a plurality of semiconductor operative elements which are incorporated in a power supply circuit from the power source to the electric load units;
a control circuit board including a control circuit for controlling operation of the semiconductor operative elements, the control circuit board being disposed to cover the plurality of semiconductor operative elements with a space between the control circuit board and the semiconductor operative elements;
a heat transfer layer attached to the control circuit board on a side of the control circuit board facing the semiconductor operative elements;
a housing for enclosing the semiconductor operative elements and the control circuit board;
a heat releasing member attached to the semiconductor operative elements and exposed to outside of the housing to release heat caused on the semiconductor operative elements; and
a heat transfer member heat-conductively connected between the heat transfer layer and the heat releasing member to transfer heat received by the heat transfer layer to the heat releasing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification