HEAT CONVECTION DISSIPATER FOR LED LAMP

• US 20090129092A1
• Filed: 11/21/2007
• Published: 05/21/2009
• Est. Priority Date: 11/21/2007
• Status: Abandoned Application

• Current Assignee: Shyh-Ming Chen
• Original Assignee: Shyh-Ming Chen
• Inventors: Chen, Shyh-Ming
• Application Number:
  US11/943,590
• Publication Number:
  US 20090129092A1
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21S 45/43 using gas
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 29/503 of light sources cooling arrangements structurally associated with gas-discharge or vapour-discharge lamps H01J61/52; cooling arrangements structurally associated with electric incandescent lamps H01K1/58; cooling arrangements structurally associated with light-emitting diodes H01L33/64
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• CPC Class Codes: F21V 29/71 using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: F28F 1/32 the means having portions engaging further tubular elements

Abstract

A heat convection dissipater for an LED lamp, comprises a convection heat dissipating device for an LED lamp, a light emitting diode module having a plurality of light emitting diodes; a heat dissipating unit behind the light emitting diode module for dissipating heat from the light emitting diode module set; a housing having a plurality of air holes at a lateral side thereof; the housing being engaged to the heat dissipating unit so as to form an internal space; and a blade wheel combined to the housing. Heat from the light emitting diodes is transferred to the internal space through the heat dissipating unit; external air is guided into the internal space through the air holes so as to drive air originally in the internal space flows toward the blade wheel to push the blade wheel to rotate so as to circulate the air in the internal space.

Claims

1. A heat convection dissipater for an LED lamp, comprising;

a convection heat dissipating device for an LED lamp;

a light emitting diode module having a plurality of light emitting diodes;

a heat dissipating unit behind the light emitting diode module for dissipating heat from the light emitting diode module set;

a housing having a plurality of air holes at a lateral side thereof;

the housing being engaged to the heat dissipating unit so as to form an internal space; and

a blade wheel combined to the housing; and

wherein heat from the light emitting diodes is transferred to the internal space through the heat dissipating unit;

external air is guided into the internal space through the air holes so as to drive air originally in the internal space flows toward the blade wheel to push the blade wheel to rotate so as to circulate the air in the internal space.

2. The heat convection dissipater for an LED lamp as claimed in claim 1, further comprising an optical mask which is coupled to the housing so as to define an internal space;

and the optical mask is installed before the light emitting diode module.

3. The heat convection dissipater for an LED lamp as claimed in claim 2, wherein the housing has a plurality of through holes for assisting air convection.

4. The heat convection dissipater for an LED lamp as claimed in claim 1, wherein the heat dissipating unit includes a heat tube, a plurality of heat dissipating fins and a seat.

5. The heat convection dissipater for an LED lamp as claimed in claim 4, wherein the light emitting diodes of the light emitting diode module are embedded into the seat.

6. The heat convection dissipater for an LED lamp as claimed in claim 1, wherein the air holes are formed at a lateral side of the housing and the blade wheel is also installed at the lateral side of the housing.

7. The heat convection dissipater for an LED lamp as claimed in claim 1, wherein the housing has a cambered shape.

8. The heat convection dissipater for an LED lamp as claimed in claim 1, wherein the housing has a tapered shape.

9. The heat convection dissipater for an LED lamp as claimed in claim 1, wherein a width of the housing is greater than that of the optical mask;

and the air holes are installed at the same level as the light emitting diode module.