CN2883920Y - Radiation structure for closed LED system - Google Patents
Radiation structure for closed LED system Download PDFInfo
- Publication number
- CN2883920Y CN2883920Y CNU2005200099051U CN200520009905U CN2883920Y CN 2883920 Y CN2883920 Y CN 2883920Y CN U2005200099051 U CNU2005200099051 U CN U2005200099051U CN 200520009905 U CN200520009905 U CN 200520009905U CN 2883920 Y CN2883920 Y CN 2883920Y
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- Prior art keywords
- emitting diode
- diode system
- light
- fin
- airtight
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- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model relates to a heat removal structure used for the airtight light emitting diode system, which is characterized in that the back of the circuit board comprising a plurality of light emitting diodes is covered with a radiation fin capable of both conducting heat and isolating. A support is attached between the heat radiator and the metal enclosure. The utility model has the advantages of having simple structure and low production cost, conducting the intersystem heat effectively, and improving the system life effectively.
Description
Technical field
The utility model relates to a kind of semiconductor lighting engineering application technology, especially relates to a kind of radiator structure that is used for airtight light-emitting diode system.
Background technology
The serious heating problem of ubiquity in high-power and high density LED (LED) system, the rising of junction temperature make the very fast reduction of the luminous intensity of LED even the ability of losing the job.Especially under water in airtight LED such as lamp decoration system, heat dissipation problem is even more serious, and general operating ambient temperature may be higher than 80-90 ℃, near or surpassed the limiting temperature of LED and electronic component, cause LED and electronic component to lose the operate as normal ability very soon, even burn very soon.Therefore, the heating problem that solves under high-power and high density LED system, the especially closed environment is one of key technology of promoting the semiconductor lighting engineering.
Think, cause the reason of airtight LED system radiating difficulties such as lamp decoration under water to be: have heat sinking function metal shell because conduction can not with LED pin or circuit board between contact, cause only relying between LED and the metal shell air to conduct heat, the air thermal resistance is big, thermal conductivity is low, reduced the radiating efficiency of metal shell, the heating that makes electronic component produce can't effectively remove, and is particularly serious in closed system.
Summary of the invention
The purpose of this utility model provides a kind of LED system of energy efficiently radiates heat, its technical solution is: a kind of radiator structure that is used for airtight light-emitting diode system is characterized in that: be coated with the fin that heat conduction is insulated again at the wiring board back side that light emitting diode is housed.Between fin and metal shell, be connected with support.
Described fin or be the film shape, or be block.Its shape or be square, or be circular, or be polygon, or be only to cover the netted of led pins.Described fin is made up of one or more layers insulating materials.Described fin is the combination of any one or they in the materials such as diamond, DLC, aluminium nitride, silicon nitride, boron nitride, carborundum, silica, beryllium oxide, non-crystalline silicon, polysilicon.
The described combination that is supported for any one or they in the metal materials such as copper, aluminium, silver.Its shape or be cylinder, or be ring cylinder.
The utility model has the advantages that: simple in structure, production cost is low, the heat of internal system effectively can be conducted, and can effectively improve lifetime of system.
Description of drawings
Accompanying drawing is a structure chart of the present utility model.
In the accompanying drawing, 1 is light emitting diode, and 2 is wiring board, and 3 is plastic casing, and 4 is transparent glass, and 5 is metal shell, and 6 is fin, and 7 for supporting.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to accompanying drawing, light emitting diode 1, wiring board 2, plastic casing 3, transparent glass 4 and metal shell 5 constitute an airtight light-emitting diode system, a kind of radiator structure that is used for airtight light-emitting diode system is characterized in that: the fin 6 that is coated with not only heat conduction at wiring board 2 back sides that light emitting diode 1 is housed but also insulate.Between fin 6 and metal shell 5, be connected with and support 7.The utility model has changed the radiating mode that present LED system relies on air to conduct heat, and fin 6 has adopted the high heat conductive insulating material that can insulate and have the good heat conductive performance, can combine closely with heater element, has promoted radiating efficiency.
Described fin 6 or be the film shape, or be piece (sheet) shape.Its shape or be rectangle, or be circular, or be polygon, or be pin netted that only covers light emitting diode 1.Fin 6 can be the combination of any one or they in diamond, DLC, aluminium nitride, silicon nitride, boron nitride, carborundum, silica, beryllium oxide, non-crystalline silicon, the polysilicon etc.
Described support 7 is the combination of any one or they in the heat conductivility good metal materials such as copper, aluminium, silver, has the effect of auxiliary heat dissipation.Described support 7 or be cylinder, or be ring cylinder.
Claims (8)
1, a kind of radiator structure that is used for airtight light-emitting diode system is characterized in that: the fin (6) that is coated with insulation at the wiring board that light emitting diode (1) is housed (2) back side.
2, the radiator structure that is used for airtight light-emitting diode system according to claim 1 is characterized in that: be connected with support (7) between fin (6) and metal shell (5).
3, the radiator structure that is used for airtight light-emitting diode system according to claim 1 is characterized in that: described fin (6) or for the film shape, or be piece/sheet.
4, the radiator structure that is used for airtight light-emitting diode system according to claim 3 is characterized in that: the shape of described fin (6) or for square, or be circular, or be polygon, or be only to cover the netted of light emitting diode (1) pin.
5, according to claim 1, the 3 or 4 described radiator structures that are used for airtight light-emitting diode system, it is characterized in that: described fin (6) is made up of one or more layers insulating materials, and the thickness of every layer of insulating materials is 0.001 μ m-5000 μ m.
6, according to claim 1, the 3 or 4 described radiator structures that are used for airtight light-emitting diode system, it is characterized in that: described fin (6) is the combination of any one or they in the diamond, DLC, aluminium nitride, silicon nitride, boron nitride, carborundum, silica, beryllium oxide, non-crystalline silicon, polysilicon.
7, the radiator structure that is used for airtight light-emitting diode system according to claim 2 is characterized in that: support the combination that (7) are any one or they in copper, aluminium, the silver.
8, the radiator structure that is used for airtight light-emitting diode system according to claim 2 is characterized in that: described support (7) or for cylinder, or be ring cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200099051U CN2883920Y (en) | 2005-09-05 | 2005-09-05 | Radiation structure for closed LED system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200099051U CN2883920Y (en) | 2005-09-05 | 2005-09-05 | Radiation structure for closed LED system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883920Y true CN2883920Y (en) | 2007-03-28 |
Family
ID=37956981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200099051U Expired - Fee Related CN2883920Y (en) | 2005-09-05 | 2005-09-05 | Radiation structure for closed LED system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883920Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931333A (en) * | 2012-11-08 | 2013-02-13 | 杭州天柱科技有限公司 | White-light light-emitting diode (LED) apparatus using cubic boron nitride film to promote radiation of chips |
-
2005
- 2005-09-05 CN CNU2005200099051U patent/CN2883920Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931333A (en) * | 2012-11-08 | 2013-02-13 | 杭州天柱科技有限公司 | White-light light-emitting diode (LED) apparatus using cubic boron nitride film to promote radiation of chips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |