Heat dissipating device for lightings
First Claim
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1. A heat dissipating device for lightings, comprising:
- a light source module, having at least one light source;
a heat sink, connected to the light source module and having a substrate and a plurality of heat dissipating fins extending outward from the substrate, wherein the substrate has an outer curved surface, wherein a plurality of channels is formed between the heat dissipating fins, wherein bottoms, tops and outer sides of the channels are opened, wherein at least one of the heat dissipating fins has an inner edge disconnected from the substrate, wherein the channels respectively have a port formed at an inner side thereof; and
a converter, having one end connected to the heat sink;
wherein a gap is formed between the inner edge of the heat dissipating fins and the converter, and between the inner edge of the heat dissipating fins and the outer curved surface of the substrate alternatively, the gap defines a ring-shaped air passage, the air passage is communicated with the ports of the channels between the heat dissipating fins.
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Abstract
A heat dissipating device for lightings includes a light source module, a heat sink, and a converter. The heat sink has a substrate and a plurality of heat dissipating fins extending outward from the substrate. A plurality of channels is formed between the heat dissipating fins. Insides of the channels respectively have a port open to the center of the heat sink. Thereby, the channels of the heat sink can effectively direct the airflow into the center of the heat sink, enhancing the heat dissipating effect of the heat sink.
14 Citations
10 Claims
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1. A heat dissipating device for lightings, comprising:
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a light source module, having at least one light source; a heat sink, connected to the light source module and having a substrate and a plurality of heat dissipating fins extending outward from the substrate, wherein the substrate has an outer curved surface, wherein a plurality of channels is formed between the heat dissipating fins, wherein bottoms, tops and outer sides of the channels are opened, wherein at least one of the heat dissipating fins has an inner edge disconnected from the substrate, wherein the channels respectively have a port formed at an inner side thereof; and a converter, having one end connected to the heat sink; wherein a gap is formed between the inner edge of the heat dissipating fins and the converter, and between the inner edge of the heat dissipating fins and the outer curved surface of the substrate alternatively, the gap defines a ring-shaped air passage, the air passage is communicated with the ports of the channels between the heat dissipating fins. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification