CN201992602U - Fin type radiator of LED (light-emitting diode) illuminating device - Google Patents
Fin type radiator of LED (light-emitting diode) illuminating device Download PDFInfo
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- CN201992602U CN201992602U CN201120079291XU CN201120079291U CN201992602U CN 201992602 U CN201992602 U CN 201992602U CN 201120079291X U CN201120079291X U CN 201120079291XU CN 201120079291 U CN201120079291 U CN 201120079291U CN 201992602 U CN201992602 U CN 201992602U
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- fin
- radiator
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- lighting device
- led lighting
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Abstract
The utility model provides a fin type radiator of an LED (light-emitting diode) illuminating device, and relates to a fluorescent lamp type radiator of an LED lamp, which has the advantages that the mass is lighter, the radiating effect is better and the cutting is easy. The radiator comprises a metal base and multiple fins which are arranged on the base; the fins are horizontally arranged on the base in parallel and form a semicircle; the base and the fins are connected in a seamless manner and are integrally molded; and the distances among the fins are equal.
Description
Technical field
The utility model relates to the radiator in a kind of LED lighting device, particularly relates to a kind of radiator of LED lamp of fluorescent lamp type.
Background technology
The modal structure of radiator of the LED illuminating lamp of existing fluorescent lamp type is the sectional view of radiator as shown in Figure 1, and fin 2 is located on the base 1.This class radiator generally is by extrusion modling or the manufacturing of sand casting forming dual mode, also has to adopt fin to be plugged on structure on the base.Referring to Fig. 2, the radiating fin 2 of this structure vertically is distributed on the base 1, and it is that rectangular slab is planar.This radiator fins is heavier, causes radiator integral heavier, and the aluminium alloy consumption is big, and its radiating efficiency is lower, and this fin is as the reinforcement of base, causes the difficult cutting of this radiator, and it can not arbitrarily intercept according to the length of fluorescent lamp.
The utility model content
Technical problem to be solved in the utility model is: a kind of radiator of fin type LED lighting device is provided, overcomes the defective of prior art, make radiator have lighter quality, better radiating effect and cutting are easy to advantage.
In order to solve above-mentioned technical problem, the utility model proposes a kind of radiator of fin type LED lighting device, comprise the base and the fin of metal, fin is located on the base; Laterally a plurality of side by side described fins on described base, described fin semicircular in shape, described base and fin seamless link, one-body molded, the spacing between the fin equates.
Preferably: the semicircle maximum height of described fin is 3 times of spacing between the fin.
Preferably: described metal is an aluminium alloy.
Preferably: described radiator is a strip, and described fin is the backbone shape and distributes on described base.
Preferably: in the middle of the gap on the described base, between the fin, be provided with the screw hole that is used for fixing PCB.
Preferably: the screw hole incompleteness is arranged in described radiator edges at two ends end.
Preferably: described fin comprises big fin and little fin, and semicirculars in shape all.Little fin and big fin can interleave layout, also can be in twos and threes one group spaced apart.The distribution of big fin will be at the position of the LED lamp on the PCB, and big fin will help the heat radiation of LED lamp like this to being positioned at the LED lamp.Finlet sheet materials lack than big fin, can save cost.
Preferably: the ratio of the area of bottom, slit is not less than 1.618 between the area of described fin and the fin.
The beneficial effects of the utility model:
Compared to existing technology, the utility model has adopted the structure of fin cross direction profiles on base, spacing between the fin can be adjusted according to the heat radiation needs, simultaneously, because fin cross direction profiles, it can be designed semicircular in shape covering of the fan structure, the rectangle structure of this and prior art is very different, it has radiused edges and helps gas communication, its radiating effect is better than prior art, and semicircle fin area is little, adds up and has bigger area of dissipation but be distributed in all fins of base, and weight is lighter, and the radiating efficiency of aluminium is higher.This radiator adopts integral type extrusion modling or integral type sand mold die casting and molding, so heat conduction is rapid, no thermal resistance.Particularly this radiator can carry out cutting according to the length of fluorescent tube, and cutting only need be blocked from the base position between the fin and gets final product, the fin of reinforcement formula compared to existing technology, the aluminium alloy that the utility model only need block base thickness gets final product, it is more prone to relatively, therefore cutting is very convenient, more flexible, and versatility is stronger.
Description of drawings
Fig. 1 is the structure chart of cross section of the LED fluorescent lamp heat radiation device of prior art.
Fig. 2 is the vertical view of radiator among Fig. 1.
Fig. 3 is a three-dimensional structure diagram of the present utility model.
Fig. 4 is the Facad structure figure of embodiment among Fig. 3.
Fig. 5 is the end face side direction view of embodiment among Fig. 3.
Fig. 6 is the vertical view of embodiment among Fig. 3.
The specific embodiment
The utility model proposes a kind of radiator of fin type LED lighting device, comprise the base and the fin of metal, fin is located on the base; Laterally a plurality of side by side fins on base.The fin semicircular in shape, base and fin seamless link, one-body molded, the spacing between the fin equates.
To structure embodiment illustrated in fig. 5, this radiator comprises aluminium alloy base 5 and fin 4 as Fig. 3, and fin 4 is located on the base 5.Laterally a plurality of side by side fins 4 on base 5.Fin 4 semicirculars in shape, base 5 and fin 4 seamless links, one-body molded, the spacing between the fin equates.Radiator integral is a strip, and fin is the backbone shape and distributes on base 5.Base 5 and fin 4 adopt integral type extrusion modling or integral type sand mold die casting and molding, so heat conduction is rapid, no thermal resistance.
Optimal way, the semicircle maximum height of fin are 3 times of spacing between the fin.By following calculating, can calculate the ratio of semicircle fin and the area of the bottom 800 in slit 8.
If fin semicircle radius is r, the spacing x=r/3 between the fin then, and the area of fin is s1=∏ r
2÷ 2 ≈ 14x
2, the area s2=x*2r=6x of bottom 800
2, s1/s2=2.355 then.The fin area is more than the twice of bottom area, helps fin heat radiation, and since the LED present position in position, fin axis, so the low semicircular structure in high both sides can maximal efficiency in the middle of the fin that the heat radiation needs are provided.If the fin area is littler than bottom area, then can cause radiation effect of fin to be lower than the bottom heat radiation, so just be unfavorable for the integral heat sink of radiator.Heat radiation is observed and is detected according to reality, s1/s2=1.618, and promptly s2/s1=0.618 is a kind of golden section proportioning, as long as s2/s1＜≤0.618 all is fine.
As shown in Figure 5, both sides are provided with the convex shape button limit 3 that is used to clamp aluminium base PCB below base 5, and this button limit 3 is one-body molded with base 5.Button 3 relative bases, 5 outsides, limit turnover 300, it crosses a groove 301 that is used to block lampshade with base 5.In the middle of the gap on the base 5, between the fin, be provided with the screw hole 9 that is used for fixing PCB.In radiator edges at two ends end screw hole incompleteness 7 is arranged.
In the foregoing description, button limit 3 is optional structure.The structure of non-outside turnover also can be adopted in button limit 3.Described screw hole incomplete 7 is left over for the cutting that stays after the radiator cutting, if cutting place does not have screw hole, then just there is not the screw hole incompleteness in the radiator edge.Radiator can be connected by screw with the fixing of PCB, and can not connect yet, and only have the button limit that radiator and PCB are linked together by screw, but this connected mode, radiating effect can reduce, and the fixing of them can variation.Radiator is except adopting aluminium alloy in addition, can also coated fine aluminium, copper and copper alloy, and other heat sink material commonly used.Fin can also be made up of big fin and finlet sheet, and semicirculars in shape all.Little fin and big fin can interleave layout, also can be in twos and threes one group spaced apart.The distribution of big fin will be at the position of the LED lamp on the PCB, and big fin will help the heat radiation of LED lamp like this to being positioned at the LED lamp.Finlet sheet materials lack than big fin, can save cost.
Claims (8)
1. the radiator of a fin type LED lighting device comprises the base and the fin of metal, and fin is located on the base; It is characterized in that: laterally a plurality of side by side described fins on described base, described fin semicircular in shape, described base and fin seamless link, one-body molded, the spacing between the fin equates.
2. the radiator of fin type LED lighting device according to claim 1 is characterized in that: the semicircle maximum height of described fin is 3 times of spacing between the fin.
3. the radiator of fin type LED lighting device according to claim 1 is characterized in that: described metal is an aluminium alloy.
4. the radiator of fin type LED lighting device according to claim 1 is characterized in that: described radiator is a strip, and described fin is the backbone shape and distributes on described base.
5. the radiator of fin type LED lighting device according to claim 1 is characterized in that: be provided with the screw hole that is used for fixing PCB in the middle of the gap on the described base, between the fin.
6. the radiator of fin type LED lighting device according to claim 5 is characterized in that: in described radiator edges at two ends end the screw hole incompleteness is arranged.
7. the radiator of fin type LED lighting device according to claim 1 is characterized in that: described fin comprises big fin and little fin, and semicirculars in shape all.
8. the radiator of fin type LED lighting device according to claim 1 is characterized in that: the ratio of the area of bottom, slit is not less than 1.618 between the area of described fin and the fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079291XU CN201992602U (en) | 2011-03-23 | 2011-03-23 | Fin type radiator of LED (light-emitting diode) illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120079291XU CN201992602U (en) | 2011-03-23 | 2011-03-23 | Fin type radiator of LED (light-emitting diode) illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992602U true CN201992602U (en) | 2011-09-28 |
Family
ID=44669092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120079291XU Expired - Fee Related CN201992602U (en) | 2011-03-23 | 2011-03-23 | Fin type radiator of LED (light-emitting diode) illuminating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201992602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109158A (en) * | 2011-03-23 | 2011-06-29 | 江苏金来顺光电科技有限公司 | Radiator of finned light emitting diode (LED) lighting device |
-
2011
- 2011-03-23 CN CN201120079291XU patent/CN201992602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109158A (en) * | 2011-03-23 | 2011-06-29 | 江苏金来顺光电科技有限公司 | Radiator of finned light emitting diode (LED) lighting device |
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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: 20110928 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |