Heat dissipation device and heat dissipation method for electronic equipment
First Claim
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1. A heat dissipation device for electronic equipment, comprising:
- a circuit board on which a circuit component is mounted;
a heat conduction sheet attached to the circuit component;
a shield case which covers the surface of the circuit board including the circuit component and has a flat plate which is approximately parallel to the surface of the circuit board and to which fixing plates which project from positions of the flat plate corresponding to the circuit component toward the circuit board are formed; and
a heat sink attached to the fixing plates of the shield case, coming into contact with the heat conduction sheet when the surface of the circuit board is covered by the shield case, and including bent heat dissipation plates to be accommodated in the shield case.
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Abstract
According to one embodiment, fixing plates are formed to a shield case which covers a circuit board including a circuit component. When a heat sink, which has bent heat dissipation plates and can be accommodated in a shield case, is attached to the fixing plates and the surface of the circuit board is covered by the shield case, the heat sink comes into contact with the heat conduction sheet attached to the circuit component.
55 Citations
11 Claims
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1. A heat dissipation device for electronic equipment, comprising:
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a circuit board on which a circuit component is mounted;
a heat conduction sheet attached to the circuit component;
a shield case which covers the surface of the circuit board including the circuit component and has a flat plate which is approximately parallel to the surface of the circuit board and to which fixing plates which project from positions of the flat plate corresponding to the circuit component toward the circuit board are formed; and
a heat sink attached to the fixing plates of the shield case, coming into contact with the heat conduction sheet when the surface of the circuit board is covered by the shield case, and including bent heat dissipation plates to be accommodated in the shield case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A heat dissipation device for electronic equipment comprising:
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a circuit board formed in a flat shape;
a flat-shaped circuit component attached to the circuit board such that one surface of the circuit component confronts one surface of the circuit board;
a heat conduction sheet composed of a flexible material and attached to the surface of the circuit component opposite to the surface thereof confronting the circuit board;
a heat sink formed integrally of a base plate in contact with the heat conduction sheet, first side plates extending from ends of the base plate vertically with respect to the surface of the base plate, and heat dissipation plates extending from ends of the first side plates and bent in a predetermined shape; and
a shield case which accommodates the heat sink therein and covering the surface of the circuit board formed integrally of a flat plate disposed approximately parallel to the surface of the circuit board, second side plates extending from the peripheral edges of the flat plate, and fixing plates which project from predetermined positions of the flat plate in the same direction as the second side plates and to which the first side plates of the heat sink are attached.
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11. A heat dissipation method for electronic equipment, comprising:
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a first step of attaching a heat conduction sheet to a circuit component mounted on a circuit board;
a second step of attaching a heat sink having bent heat dissipation plates to fixing plates which project from positions of a flat plate of a shield case approximately parallel to the surface of the circuit board toward the circuit board, wherein the positions correspond to the circuit component, and the shield case covers the circuit board including the circuit component; and
a third step of covering the circuit board by the surface of the shield case such that the heat sink is accommodated in the shield case and comes into contact with the heat conduction sheet.
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Specification