Heat dissipation housing for led lamp

Abstract

The present invention is to provide a heat dissipation housing for an LED lamp, which is made as a one-piece member by metal casting and formed with a receiving channel axially passing therethrough. A plurality of cooling fins axially are formed on an outer surface of the housing, wherein each said cooling fin is radially extended out of the housing and formed therein with a plurality of heat dissipation holes, and has two opposite sides with an included angle defined therebetween. Therefore, when an LED lamp installed on an end of the receiving channel starts to emit light, heat exchange between the LED lamp and the ambient cooling air outside the housing can be carried out through the cooling fins and the heat dissipation holes by both of thermal conduction and thermal convection, so as to effectively enhance the heat dissipation efficiency of the housing for the LED lamp.

Description

FIELD OF THE INVENTIONThe present invention relates to a housing for an LED lamp, more particularly to a heat dissipation housing for an LED lamp, of which an outer surface is axially formed with a plurality of cooling fins. Each of the cooling fins is radially extended out of the heat dissipation housing and formed with a plurality of heat dissipation holes therein for communicating the air inside and outside the heat dissipation housing, wherein each of the cooling fins has two opposite sides, and an included angle is defined between the two opposite sides. Thus, when an LED lamp is installed on the heat dissipation housing and starts to emit light, heat exchange between heat generated by the LED lamp and the ambient cooling air outside the heat dissipation housing can be carried out through the cooling fins and the heat dissipation holes by both of thermal conduction and thermal convection, so as to effectively enhance the heat dissipation efficiency of the housing for the LED la...

Examples

Embodiment Construction

Generally, while a light emitting diode (LED) emits color light, the LED generates a large amount of heat. Thus, an LED lamp installed with LEDs is generally provided with a heat dissipation housing to dissipate heat generated by the LEDs to the ambient environment. Typically, the manufacturing methods of the heat dissipation housing can be classified into metal extrusion and metal casting. For a heat dissipation housing manufactured by metal extrusion, a pure metal plate (such as an aluminum plate) is extruded to integrate into one piece, so as to form the heat dissipation housing. However, the heat dissipation housing manufactured by metal extrusion has a rougher surface, so that the rougher surface must be finished by a secondary processing. It causes that the processing procedures are complicated and cost more time and manpower of manufacturers, so that the manufacture cost of the heat dissipation housing will be increased and the market competitiveness of the manufacturers will...

FIELD OF THE INVENTIONThe present invention relates to a housing for an LED lamp, more particularly to a heat dissipation housing for an LED lamp, of which an outer surface is axially formed with a plurality of cooling fins. Each of the cooling fins is radially extended out of the heat dissipation housing and formed with a plurality of heat dissipation holes therein for communicating the air inside and outside the heat dissipation housing, wherein each of the cooling fins has two opposite sides, and an included angle is defined between the two opposite sides. Thus, when an LED lamp is installed on the heat dissipation housing and starts to emit light, heat exchange between heat generated by the LED lamp and the ambient cooling air outside the heat dissipation housing can be carried out through the cooling fins and the heat dissipation holes by both of thermal conduction and thermal convection, so as to effectively enhance the heat dissipation efficiency of the housing for the LED la...

Examples

Embodiment Construction

Generally, while a light emitting diode (LED) emits color light, the LED generates a large amount of heat. Thus, an LED lamp installed with LEDs is generally provided with a heat dissipation housing to dissipate heat generated by the LEDs to the ambient environment. Typically, the manufacturing methods of the heat dissipation housing can be classified into metal extrusion and metal casting. For a heat dissipation housing manufactured by metal extrusion, a pure metal plate (such as an aluminum plate) is extruded to integrate into one piece, so as to form the heat dissipation housing. However, the heat dissipation housing manufactured by metal extrusion has a rougher surface, so that the rougher surface must be finished by a secondary processing. It causes that the processing procedures are complicated and cost more time and manpower of manufacturers, so that the manufacture cost of the heat dissipation housing will be increased and the market competitiveness of the manufacturers will...

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