CN204806347U - LED lamps and lanterns heat radiation structure - Google Patents
LED lamps and lanterns heat radiation structure Download PDFInfo
- Publication number
- CN204806347U CN204806347U CN201520528976.6U CN201520528976U CN204806347U CN 204806347 U CN204806347 U CN 204806347U CN 201520528976 U CN201520528976 U CN 201520528976U CN 204806347 U CN204806347 U CN 204806347U
- Authority
- CN
- China
- Prior art keywords
- led lamp
- fin
- insulating trip
- boss
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005855 radiation Effects 0.000 title abstract description 4
- 241001465382 Physalis alkekengi Species 0.000 title abstract 5
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 27
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 239000004519 grease Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012080 ambient air Substances 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides a terminal surface is equipped with the boss, and the boss passes insulating piece and the contact of LED lamp pearl, LED lamp pearl and insulating piece fixed connection of LED lamps and lanterns heat radiation structure, at the fin. The insulating piece be the fine single face printed circuit board of glass. The utility model provides a pair of LED lamps and lanterns heat radiation structure, through adopting foretell structure, LED lamp pearl and fin direct contact can effectively reduce the LED lamp pearl and the difference in temperature between the ambient air on every side. It as radiator part, reaches more ideal radiating effect to cancel aluminium base board. With the aluminium base board of insulator chain board replacement, insulating properties is better, and the cost is lower. Because LED lamp pearl and the reduction of the difference in temperature between the ambient air are on every side compared with the same power LED lamps and lanterns of original design, volume and weight that the LED lamps and lanterns of adoption new design can suitably reduce the fin, further reduce cost.
Description
Technical field
The utility model relates to LED lamp field, particularly a kind of heat dissipation structure of LED lamp.
Background technology
The junction temperature of the light efficiency of LED lamp bead and life-span and LED chip is closely bound up.Have data to show, when LED chip junction temperature is lower than 25 DEG C, the light efficiency that can reach 100% exports; When junction temperature of chip is lower than 60 DEG C, the light efficiency that can reach more than 90% exports; When junction temperature continues to raise, the light efficiency meeting continuous decrease of LED chip, if junction temperature is more than 150 DEG C, the luminous flux of LED chip will drop to less than 70% of nominal luminous flux, and very likely causes the permanent damages of LED lamp bead.Therefore, one of factor first will considered when junction temperature when reducing LED chip work is LED lamp engineers design always.When LED chip is packaged into high-power lamp pearl, can first chip be fixed on a heat dissipation base, it is in package shape to add pin shell etc.And the LED lamp of current main-stream is all first lamp pearl is fixed pin to be welded on aluminium base, again aluminium base is fixed on fin, the heat produced during LED lamp bead work is first transmitted to aluminium base, fin is transmitted to again by aluminium base, finally undertaken conducting or radiation by the peripherad air of fin, when practical application owing to there is the temperature difference between each heat-conduction component, heat-conduction component is more, the accumulation temperature difference is larger, when environment temperature is higher, the junction temperature of LED chip will, far above 25 DEG C, finally cause LED lamp light efficiency to reduce the lost of life.
Therefore, be necessary to design a kind of new radiator structure, effectively can reduce the junction temperature of LED chip, make the junction temperature of chip during LED lamp long-term work also within admissible scope.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of heat dissipation structure of LED lamp, can reduce the temperature difference between LED lamp bead and surrounding air, improves radiating effect, extends the service life of LED lamp, and is convenient to install.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of heat dissipation structure of LED lamp, is provided with boss at the end face of fin, and boss contacts with LED lamp bead through insulating trip, LED lamp bead is fixedly connected with insulating trip, is fixedly connected with between insulating trip with fin.
In preferred scheme, described insulating trip is glass single-clad board.
In preferred scheme, described boss is cylindrical, is provided with the thermal vias passed for boss in the corresponding position of insulating trip.
In optional scheme, insulating trip is provided with screw hole, be provided with screwed hole the end face of fin is corresponding, bolts through bolt holes is connected with screwed hole.
In optional scheme, described insulating trip is positioned at housing, and fin is connected with housing by screw, and is pressed between fin and housing by insulating trip.
In optional scheme, be provided with buckle on a heat sink, insulating trip locks by buckle.
In preferred scheme, between boss and LED lamp bead, be provided with heat-conducting silicone grease or graphite pads.
In preferred scheme, the height of described boss is greater than the thickness of insulating trip.
In preferred scheme, the connection bonding with fin of described insulating trip.
A kind of heat dissipation structure of LED lamp that the utility model provides, by adopting above-mentioned structure, comparing as prior art and having the following advantages and beneficial effect:
1, the LED lamp bead in the utility model directly contacts with fin, effectively can reduce the temperature difference between LED lamp bead and ambient air.
2, cancel aluminium base as heat dissipation element, reach more preferably radiating effect.Replace aluminium base with insulating circuit board, insulating properties are better, and cost is lower.
3, because the temperature difference between LED lamp bead and ambient air reduces, compared with the equal-wattage LED lamp originally designed, adopt the LED lamp of new design suitably can reduce the volume and weight of fin, reduce costs further.
4, adopt the mounting structure of buckle-type, install very quick, be applicable to production line balance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the integrally-built explosive view of the utility model.
Fig. 2 is the schematic diagram of buckle connected mode in the utility model.
In figure: fin 1, boss 11, screwed hole 12, buckle 13, insulating trip 2, circuit pad 21, thermal vias 22, screw hole 23, LED lamp bead 3, pin 31.
Detailed description of the invention
As in Fig. 1,2, a kind of heat dissipation structure of LED lamp, is provided with boss 11 at the end face of fin 1, and boss 11 contacts with LED lamp bead 3 through insulating trip 2, and LED lamp bead 3 is fixedly connected with insulating trip 2, is fixedly connected with between insulating trip 2 with fin 1.Structure thus, fin 1 directly contacts with LED lamp bead 3, better heat-radiation effect.
Fin can adopt the material that the thermal conductivity factors such as 6063 anodic oxidation aluminiums or copper material are higher, and the cylindrical boss of diameter 6mm height 1.5mm transformed out by the mould before utilizing in corresponding position.
In preferred scheme, described insulating trip 2 is glass single-clad board.The pin 31 of LED lamp bead is welded on the related circuit solder joint 21 of insulating trip 2, and the pin 31 of LED lamp bead and fin 1 electric insulation.Structure thus, insulation effect is better, and cost is lower.Insulating trip 2 in this example
The circular hole of a 7mm is opened in the heat dissipation base position of LED lamp bead.
In preferred scheme, the height of described boss 11 is greater than the thickness of insulating trip 2.Structure thus, guarantees that the contact between boss 11 and LED lamp bead 3 is tight, good heat conduction effect.
In preferred scheme, described boss 11 is cylindrical, is provided with in the corresponding position of insulating trip 2 thermal vias 22 passed for boss 11.Structure thus, is convenient to processing.Certain boss 11 is square-column-shaped, and it is also feasible that the thermal vias 22 of insulating trip also should be square hole mutually.
Optional scheme, as in Fig. 1, insulating trip 2 is provided with screw hole 23, and be provided with screwed hole 12 the end face of fin 1 is corresponding, bolts through bolt holes 23 is connected with screwed hole 12.Structure thus, fixing comparatively reliable, fin 1 is tight with the contact of LED lamp bead 3, not easily gets loose.
In optional scheme, described insulating trip 2 is positioned at housing, and fin 1 is connected with housing by screw, and is pressed between fin 1 and housing by insulating trip 2.Structure thus, installs comparatively easy, but higher for installation positioning accuracy request.
In optional scheme, fin 1 is provided with buckle 13, insulating trip 2 locks by buckle 13.Buckle 13 is the column with barb, is provided with hole or groove accordingly on fin 1, and pressed on a heat sink by insulating trip 2, the groove at insulating trip 2 edge or the hole of centre catch on by the barb of buckle 13, thus fixed insulation sheet 2.Structure thus, installs the easiest, is convenient to realize pipelining.But the mould of fin 1 is comparatively complicated.
In preferred scheme, between boss 11 and LED lamp bead 3, be provided with heat-conducting silicone grease or graphite pads.Structure thus, makes heat-conducting silicone grease or graphite pads fully fill gap between the boss 11 of fin 1 and LED lamp bead 3, improves heat-conducting effect further.
First LED lamp bead 3 is soldered on the circuit pad 21 of insulating trip 2 by correct polarity during installation, and heat-conducting silicone grease is smeared on the boss of fin 1, then the position of the thermal vias 22 of the insulating trip 2 welded is installed on insulating trip 2 to boss, screw, buckle or chemical adhesive is used to fix, make the radiating surface of LED lamp bead 3 and the boss surface close contact of fin, realize the good heat radiating of LED lamp bead 3.Other installation steps are identical with traditional LED lamp tool.
The above embodiments are only optimal technical scheme of the present utility model, and should not be considered as restriction of the present utility model.Each preference in this example, under the principle of not conflicting, can combine mutually.The technical scheme that protection domain of the present utility model should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection domain of the present utility model.
Claims (9)
1. a heat dissipation structure of LED lamp, it is characterized in that: be provided with boss (11) at the end face of fin (1), boss (11) contacts with LED lamp bead (3) through insulating trip (2), LED lamp bead (3) is fixedly connected with insulating trip (2), is fixedly connected with between insulating trip (2) with fin (1).
2. a kind of heat dissipation structure of LED lamp according to claim 1, is characterized in that: described insulating trip (2) is glass single-clad board.
3. a kind of heat dissipation structure of LED lamp according to claim 1, is characterized in that: described boss (11), for cylindrical, is provided with in the corresponding position of insulating trip (2) thermal vias (22) passed for boss (11).
4. a kind of heat dissipation structure of LED lamp according to any one of claim 1 ~ 3, it is characterized in that: on insulating trip (2), be provided with screw hole (23), be provided with screwed hole (12) the end face of fin (1) is corresponding, bolts through bolt holes (23) is connected with screwed hole (12).
5. a kind of heat dissipation structure of LED lamp according to any one of claim 1 ~ 3, it is characterized in that: described insulating trip (2) is positioned at housing, fin (1) is connected with housing by screw, and is pressed between fin (1) and housing by insulating trip (2).
6. a kind of heat dissipation structure of LED lamp according to any one of claim 1 ~ 3, is characterized in that: on fin (1), be provided with buckle (13), and insulating trip (2) locks by buckle (13).
7. a kind of heat dissipation structure of LED lamp according to any one of claim 1 ~ 3, is characterized in that: between boss (11) and LED lamp bead (3), be provided with heat-conducting silicone grease or graphite pads.
8. a kind of heat dissipation structure of LED lamp according to claim 1, is characterized in that: the height of described boss (11) is greater than the thickness of insulating trip (2).
9. a kind of heat dissipation structure of LED lamp according to any one of claim 1 ~ 3, is characterized in that: described insulating trip (2) and fin (1) bonding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520528976.6U CN204806347U (en) | 2015-07-21 | 2015-07-21 | LED lamps and lanterns heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520528976.6U CN204806347U (en) | 2015-07-21 | 2015-07-21 | LED lamps and lanterns heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204806347U true CN204806347U (en) | 2015-11-25 |
Family
ID=54591166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520528976.6U Expired - Fee Related CN204806347U (en) | 2015-07-21 | 2015-07-21 | LED lamps and lanterns heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204806347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388056A (en) * | 2017-08-25 | 2017-11-24 | 中山进成塑料制品有限公司 | A kind of light fixture |
-
2015
- 2015-07-21 CN CN201520528976.6U patent/CN204806347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388056A (en) * | 2017-08-25 | 2017-11-24 | 中山进成塑料制品有限公司 | A kind of light fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |