CN205208493U - LED heat radiating structure - Google Patents
LED heat radiating structure Download PDFInfo
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- CN205208493U CN205208493U CN201520779692.4U CN201520779692U CN205208493U CN 205208493 U CN205208493 U CN 205208493U CN 201520779692 U CN201520779692 U CN 201520779692U CN 205208493 U CN205208493 U CN 205208493U
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- cylinder
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- led heat
- radiation fins
- heat
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Abstract
The utility model provides a LED heat radiating structure, includes that hollow cylinder and heat radiation fins organize, the cavity internal surface of hollow cylinder has the capillary structure of aluminite powder and the mixed sintering of copper powder, heat radiation fins group comprises a plurality of heat radiation fins, and each heat radiation fins includes extension piece and " U " type structure, the extension piece along the radial equipartition setting of cylinder on the outer face of cylinder of cylinder, " U " type structure is extended at extension piece tip, extending direction and the radial unanimity of cylinder. The utility model discloses a LED heat radiating structure, heat -sinking capability is strong, can satisfy the demand of high -power LED heat dissipation on current phase.
Description
Technical field
The utility model relates to LED technical field of heat dissipation, specifically provides a kind of LED heat dissipation structure.
Background technology
The same with conventional light source, semiconductor light emitting diode (LED) also can produce heat during operation, and how much it depends on overall luminous efficiency.Under powering up energy outside, the radiation recombination generation electroluminescent in electronics and hole, the light radiated near PN junction also needs just can arrive at external world's (air) through the semiconductor medium of chip (chip) itself and encapsulation medium.Combination current injection efficiency, radioluminescence quantum efficiency, chip exterior light extraction efficiency etc., finally probably only have the input electric energy conversion of 30-40% to be luminous energy, and the energy of all the other 60-70% mainly transforms heat energy with the form of the lattice vibration of non-radiative recombination generation.The method of LED heat radiation mainly contains: fan, heat pipe etc., the technology how utilizing thermodynamics to combine with air fluid mechanics realizes heat conduction, heat-radiating integrated radiator structure, makes the even more ideal technological difficulties being people always and thirsting for solving of radiator heat-dissipation effect.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is the LED heat dissipation structure providing a kind of better heat-radiation effect.
For achieving the above object, this aspect adopts following technical scheme:
A kind of LED heat dissipation structure, comprise cylinder and the radiating fin group of hollow, the cylindrical cavity inner surface of described hollow has the capillary structure of aluminium powder and copper powder mixed sintering, described radiating fin group is made up of some radiating fins, each radiating fin comprises extension sheet and " U " type structure, described extension sheet is arranged on cylindrical external cylindrical surface along cylinder radial equipartition, and described " U " type structure extends in extension sheet end, and bearing of trend is radial consistent with cylinder.
Further, described " U " type structure is replaced by " mountain " type structure.
A kind of LED heat dissipation structure of the present utility model, heat-sinking capability is strong, can meet present stage great power LED cooling demand.
Accompanying drawing explanation
Fig. 1 is the structural representation in a LED heat dissipation structure direction of the present utility model;
Fig. 2 is the A-A sectional view in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Refer to Fig. 1 and Fig. 2, a kind of LED heat dissipation structure of the present utility model, comprise cylinder 1 and the radiating fin group 2 of hollow, radiating fin group 2 is in emitting shape.The cavity inner surface of the cylinder 1 of described hollow has the capillary structure of aluminium powder and copper powder mixed sintering.Described radiating fin group 2 is made up of some radiating fins.Each radiating fin comprises extension sheet 21 and " U " type structure 22.Described extension sheet 21 is arranged on cylinder external cylindrical surface along cylinder 1 radial equipartition.Described " U " type structure 22 extends in extension sheet 21 end, and bearing of trend is radial consistent with cylinder 1.
Further, in order to increase radiating effect, described " U " type structure 22 can replace by " mountain " structure, and dispel the heat wider, effect is better.
LED heat dissipation structure of the present utility model, by arranging described radiating fin group 2, described radiating fin group 2 is made up of some radiating fins.Each radiating fin comprises extension sheet 21 and " U " type structure 22, and heat-sinking capability is strong, can meet present stage great power LED cooling demand.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (2)
1. a LED heat dissipation structure, it is characterized in that: the cylinder and the radiating fin group that comprise hollow, the cylindrical cavity inner surface of described hollow has the capillary structure of aluminium powder and copper powder mixed sintering, described radiating fin group is made up of some radiating fins, each radiating fin comprises extension sheet and " U " type structure, described extension sheet is arranged on cylindrical external cylindrical surface along cylinder radial equipartition, described " U " type structure extends in extension sheet end, and bearing of trend is radial consistent with cylinder.
2. according to LED heat dissipation structure according to claim 1, it is characterized in that: described " U " type structure is replaced by " mountain " type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779692.4U CN205208493U (en) | 2015-10-09 | 2015-10-09 | LED heat radiating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779692.4U CN205208493U (en) | 2015-10-09 | 2015-10-09 | LED heat radiating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205208493U true CN205208493U (en) | 2016-05-04 |
Family
ID=55846210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520779692.4U Active CN205208493U (en) | 2015-10-09 | 2015-10-09 | LED heat radiating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205208493U (en) |
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2015
- 2015-10-09 CN CN201520779692.4U patent/CN205208493U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED heat dissipating structure Effective date of registration: 20170811 Granted publication date: 20160504 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd Pledgor: CHONGQING FEICHENG METAL PRODUCT CO., LTD. Registration number: 2017440000064 |