Electronic device
AssigneeMitsubishi Electric Corporation
InventorsTakahiro Masuyama, Hirokazu Takabayashi
Life of this patent
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Abstract
An electronic device includes a heat-receiving block, a heat transfer member, and fins. The heat-receiving block has a first main surface to which an electronic component is attached. The heat transfer member is attached to a second main surface of the heat-receiving block opposite to the first main surface, and transfers heat transferred from the electronic component through the heat-receiving block in a direction away from the second main surface. The fins have main surfaces and are attached to the heat transfer member with the main surfaces being inclined with respect to a horizontal plane for a vehicle being located horizontally. The fins dissipate heat transferred from the electronic component through the heat-receiving block and the heat transfer member into ambient air.
Claims20
An electronic device installable on a vehicle, the electronic device comprising:
- a heat-receiving block being heat conductive, the heat-receiving block having a first main surface to which an electronic component is attached;
- a heat transfer member attached to a second main surface of the heat-receiving block, the second main surface being opposite to the first main surface, the heat transfer member extending away from the second main surface to transfer heat transferred from the electronic component through the heat-receiving block in a direction away from the second main surface;
- one or more fins having main surfaces, the one or more fins being attached to the heat transfer member with the main surfaces being inclined at a nonzero angle with respect to a horizontal plane for the vehicle being located horizontally and configured to dissipate heat transferred from the electronic component through the heat-receiving block and the heat transfer member into ambient air;
- and
- a housing accommodating the electronic component, the housing having an opening in a vertically upper portion of the housing, the housing being installable on a roof of the vehicle, wherein
- the heat-receiving block is attached to the housing with the first main surface covering the opening of the housing.
An electronic device installable on a vehicle, the electronic device comprising:
- a heat-receiving block being heat conductive, the heat-receiving block having a first main surface to which an electronic component is attached;
- a heat transfer member attached to a second main surface of the heat-receiving block, the second main surface being opposite to the first main surface, the heat transfer member extending away from the second main surface to transfer heat transferred from the electronic component through the heat-receiving block in a direction away from the second main surface;
- and
- a plurality of fins having main surfaces, the plurality of fins being attached to the heat transfer member with the main surfaces being inclined with respect to a horizontal plane for the vehicle being located horizontally and configured to dissipate heat transferred from the electronic component through the heat-receiving block and the heat transfer member into ambient air, wherein
- the plurality of fins are arranged in a width direction of the vehicle, and
- each fin of the plurality of fins attached to the heat transfer member has, for the vehicle being located horizontally, one of two ends in the width direction nearer a center of the vehicle located vertically lower than the other of the two ends.
An electronic device installable on a vehicle, the electronic device comprising:
- a heat-receiving block being heat conductive, the heat-receiving block having a first main surface to which an electronic component is attached;
- a heat transfer member attached to a second main surface of the heat-receiving block, the second main surface being opposite to the first main surface, the heat transfer member extending away from the second main surface to transfer heat transferred from the electronic component through the heat-receiving block in a direction away from the second main surface;
- and
- a plurality of fins having main surfaces, the plurality of fins being attached to the heat transfer member with the main surfaces being inclined with respect to a horizontal plane for the vehicle being located horizontally and configured to dissipate heat transferred from the electronic component through the heat-receiving block and the heat transfer member into ambient air, wherein
- the plurality of fins are arranged in four rows in a width direction of the vehicle,
- the plurality of fins attached to the heat transfer member include fins in two rows at respective two ends in the width direction, and each of the fins in the two rows at the respective two ends has, for the vehicle being located horizontally, one of two ends in the width direction nearer a center of the vehicle located vertically higher than the other of the two ends, and
- the plurality of fins attached to the heat transfer member include fins in two rows at the center of the vehicle in the width direction, and each of the fins in the two rows at the center has, for the vehicle being located horizontally, one of two ends in the width direction nearer the center of the vehicle vertically lower than the other of the two ends.
Dependencies are inferred from the claim text.