Heat-radiation structure of electric unit box
AssigneeYazaki Corporation
InventorsHiroaki Kamo, Kazuhiro Kawachi
Life of this patent
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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.
Claims7
A heat-radiation structure of an electronic-unit box, comprising:
- a box body including a primary peripheral wall;
- a secondary peripheral wall located inside said primary peripheral wall, wherein an air layer is formed between said primary peripheral wall and said secondary peripheral wall;
- an electronic unit received in said secondary peripheral wall;
- an air intake and an air outlet formed in said box body so as to communicate with said air layer so that said air layer forms into air flow paths between said air intake and said air outlet;
- and
- air interrupting walls formed to bridge between said primary and secondary peripheral walls and located in said air layer so as to be between said air intake and said air outlet in a shorter one of said air flow paths so that the flow of cooling air is blocked by said air interrupting walls and only passable through a longer one of said air flow paths of said air layer from said air intake to said air outlet.
Dependencies are inferred from the claim text.