Heat-radiation structure of electric unit box

Details Heat-radiation structure of electric unit box Heat-radiation structure of electric unit box

1997-04-15

1999-01-05

Thompson, Gregory D.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

H05K 720

Patent

active

058569090

ABSTRACT:
A heat-radiation structure of an electronic-unit box in which an air layer is formed between a primary peripheral wall of the electronic-unit box and a secondary peripheral wall located inside the primary peripheral wall, and an electronic unit is received inside the secondary peripheral wall, an air intake and an air outlet are provided in a box body so as to communicate with the air layer, and air interrupting walls are provided in a shorter peripheral-distance-side flow path of the air layer between the air intake and the air outlet so that cooling air passes through a longer peripheral-distance-side flow path of the air layer from the air intake to the air outlet. Preferably, an electric fan is provided at the air outlet.

REFERENCES:
patent: 4646202 (1987-02-01), Hook et al.
patent: 5274530 (1993-12-01), Anderson
patent: 5493474 (1996-02-01), Schrohowsky et al.

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