Electronic card unit and method for removing heat from a heat-generating component on a printed circuit board
AssigneeNEC Corporation
InventorTakashi Oyamada
Life of this patent
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Abstract
A heat-radiating structure of an electronic card unit is compact and reinforces a printed circuit board while improving heat radiation efficiency. Card unit 6 has dual function reinforcing plate-heat dissipaters 17 and 18 at the upper and lower edges of a printed circuit board 12 on which a heat-generating component 19 is mounted. Heat generated by component 19 is conducted to the reinforcing plate-heat dissipaters by passing a fluid in a heat pipe 21, a heat-conducting sheet 31 or a heat radiation circulation pipe 41 to be removed into the air. The reinforcing plates-heat dissipaters 17 and 18 are formed with a plurality of air vents 17a and 18a.
Claims12
An electronic module which has a circuit board on which a heat-generating component is mounted and is intended to be inserted into an electronic equipment frame, comprising:
- a reinforcing plate fixed to at least one of the upper and lower edges of said circuit board;
- and
- a heat-conducting structure conducting heat generated by said heat-generating component to said reinforcing plate,
- wherein said reinforcing plate has a plurality of air vents.
A method for removing heat from heat-generating component provided with a heat-absorbing element on a circuit board, said method comprising:
- conducting heat from the heat-absorbing element on the heat generating component to a reinforcing plate fixed to at least one of the upper and lower edges of the circuit board, via a heat-conducting member,
- wherein the reinforcing plate has a plurality of air vents for removing the heat from the heat generating component through the heat radiation circulation pipe.
Dependencies are inferred from the claim text.