Heat dissipating device having linear heat dissipating unit...

H - Electricity – 05 – K

Patent

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H05K 7/20 (2006.01)

Patent

CA 2691738

A heat dissipating device having a linear heat dissipating unit and a fanless LED lamp using the device are disclosed. The heat dissipating device includes a heat dissipating bracket having a heat absorbing part, and a linear heat dissipating unit which is coupled to the heat dissipating bracket and has a coil shape achieved by the continuous winding of a wire into a spiral shape. The heat dissipating bracket includes an insert hole corresponding to part of the linear heat dissipating unit in such a way as to be in surface contact with the part of the linear heat dissipating unit, and the linear heat dissipating unit protrudes to the outside of the heat absorbing part of the heat dissipating bracket to perform a heat exchange process for dissipating heat through natural convection ventilation. The fanless LED lamp includes the linear heat dissipating unit as a heat dissipating means.

L'invention concerne un dispositif de dissipation thermique à unité de dissipation thermique linéaire et lampe LED sans ventilateur utilisant ce dispositif. Le dispositif de dissipation thermique comprend un support de dissipation thermique présentant un élément d'absorption de chaleur, et une unité de dissipation thermique qui est couplée avec le support de dissipation thermique et qui présente une forme de bobine obtenue par enroulement continu d'un fil en forme de spirale. Le support de dissipation thermique comprend un trou d'insertion correspondant à une partie de l'unité de dissipation thermique linéaire, de manière à être en contact en surface avec la partie de l'unité de dissipation thermique linéaire, cependant que l'unité de dissipation thermique linéaire est en saillie vers l'extérieur de l'élément d'absorption de chaleur du support de dissipation thermique, de manière à effectuer un processus d'échange thermique pour la dissipation de la chaleur par ventilation par convection naturelle. La lampe LED sans ventilateur comprend l'unité de dissipation thermique linéaire, en tant que moyen de dissipation thermique.

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