CN207247152U - A kind of LED lamp heat sink - Google Patents
A kind of LED lamp heat sink Download PDFInfo
- Publication number
- CN207247152U CN207247152U CN201721216652.4U CN201721216652U CN207247152U CN 207247152 U CN207247152 U CN 207247152U CN 201721216652 U CN201721216652 U CN 201721216652U CN 207247152 U CN207247152 U CN 207247152U
- Authority
- CN
- China
- Prior art keywords
- led lamp
- heat sink
- lower cover
- heronsbill
- lamp heat
- 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
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Abstract
The utility model discloses a kind of LED lamp heat sink, the fin being distributed including heronsbill profiled body (1) and its external circumferential, the axis direction of heronsbill profiled body (1) has a vacuum cavity for running through heronsbill profiled body (1) both ends of the surface, working medium is filled with vacuum cavity, vacuum cavity both ends are respectively upper cover plate (2) and lower cover (3), are connecting plate (4) below lower cover (3)；There is the parallel linear pattern microflute of multiple row in the upper surface of lower cover (3).The utility model utilization rate is high, and heat dissipation thermal resistance is smaller, and radiating efficiency is high, can meet the radiating requirements of high-powered LED lamp.
Description
Technical field
It the utility model is related to LED lamp heat sink technical field, and in particular to a kind of radiator knot of new and effective heat exchange
Structure.
Background technology
LED light because it has the advantages that high luminous efficiency, energy-efficient, extra long life, environmentally protective, safety coefficient is high,
It is widely used in traffic lights, Building facade lighting, mark and indicative illumination, public place of entertainment stage illumination, lighting, vehicle in one's power
The various fields such as pilot light, large-area displays screen, general lighting, generate good economic benefit and social benefit.And
The operating temperature of LED light has a direct impact the factors such as its luminous efficiency, service life, as luminous power is increasing,
Radiate it is undesirable in the case of, the service life of LED can be greatly decreased, and traditional LED radiator has been unable to meet the need of its heat radiation power
Ask, therefore develop novel efficient heat radiator, it appears it is particularly important that.
Traditional LED radiator inside heronsbill section bar using solid material as shown in figure 4, formed.Traditional LED heat dissipations
The operation principle of device is：LED light adstante febre, conducts heat on heronsbill profiled body, recycles the crowd of heronsbill section bar
More fins, to achieve the purpose that increasing heat radiation area, the radiator conduction inequality is even, and the temperature field of heronsbill profiled body is uneven
Even, temperature is very high at the fever of LED light, low away from the temperature at LED light fever, the profit of heronsbill profiled body outer surface
Low with rate, heat dissipation thermal resistance is big, and radiating efficiency is low, can not meet the radiating requirements of great power LED etc..
The content of the invention
The technical problems to be solved in the utility model is：A kind of LED lamp heat sink is provided, utilization rate is high, heat dissipation thermal resistance compared with
Small, radiating efficiency is high, can meet the radiating requirements of high-powered LED lamp.
The utility model is achieved by following technical solution：
A kind of LED lamp heat sink, including heronsbill profiled body and its fin of external circumferential distribution, the sun flower pattern
The axis direction of material main body has a vacuum cavity for running through heronsbill profiled body both ends of the surface, and working medium is filled with vacuum cavity,
Vacuum cavity both ends are respectively upper cover plate and lower cover, are connecting plate below lower cover；
There is the parallel linear pattern microflute of multiple row in the upper surface of the lower cover.
The working medium is distilled water.
The vacuum cavity is circular cylindrical cavity, and the inner wall of cavity is shiny surface.
The lower face of the upper cover plate is shiny surface, and vacuum pumping opening is provided with upper cover plate.
The connecting plate is Circular Plate, and there are a round boss, round boss diameter and connecting plate in the lower cover lower face
On inner ring bore dia it is equal.
The lower cover is connected with connecting plate by agitating friction weldering.
Through hole, threaded hole and wire casing are provided with the lower cover and connecting plate.
The linear pattern width of mini longitudinal channels is between 0.1mm~0.2mm, its height is between 1mm~2mm.
The operation principle of the utility model is：
(1) radiator make use of the principle of flat-plate heat pipe, will be made of upper cover plate, heronsbill profiled body and lower cover
Closed cavity, inject certain working medium after which is vacuumized, LED light heats the working medium, using the working medium extremely low
Vacuum condition under, gaseous state is just vaporizated into by liquid at a lower temperature, when phase transformation takes away the substantial amounts of latent heat of vaporization, efficiently
Conduct heat on the inner wall of heronsbill profiled body, using the great surface area of heronsbill profiled body, most heat at last
It is transmitted in air.The working medium of gas is on the inner wall of heronsbill profiled body, after heat is conducted to heronsbill profiled body,
Liquid is condensed into, under gravity, flows back at lower cover, so moves in circles, is constantly transmitted to LED light heat greatly
In gas.The radiator make use of the principle of heat pipe, due to phase transformation reaction of the working medium between liquid/vapor, make its heat transfer
Efficiency greatly improves the heat conductivility of heat sink than the common high decades of times of fine copper, or even hundreds of times.
(2) when radiator works, working medium is undergone phase transition at lower cover, gaseous state is vaporizated into by liquid, due to lower cover
The presence of upper microflute, the phase change transition degree of working medium can be fiercer, will undergo phase transition conversion at very low temperature, into one
The thermal resistance reduced is walked, improves heat dissipation performance.
For the utility model compared with traditional LED lamp heat sink, the radiator of the utility model make use of the principle of heat pipe,
When temperature is very low at LED light fever, conduction heat is just had begun to, and heronsbill section bar internal temperature field is very uniform, heat
Heat must be conducted in air by measuring from the inner homogeneous of heronsbill section bar, and the utilization rate of heronsbill profiled body outer surface is high.Together
When, microflute is used on lower cover so that the phase transition process in heat pipe occurs more violent, causes dissipating for the new radiator
The thermal efficiency is very high, greatly improves the heat conductivility of heat sink.
Brief description of the drawings
Fig. 1 is LED lamp heat sink outline drawing；
Fig. 2 and Fig. 5 is each part composition schematic diagram of LED lamp heat sink；
Fig. 3 is the microflute schematic diagram in Circular Plate；
Fig. 4 is traditional LED lamp heat sink schematic diagram.
Embodiment
The technical solution of the utility model is further described below in conjunction with the accompanying drawings, but claimed scope is not limited to
It is described.
As shown in Figures 1 to 3, LED lamp heat sink mainly includes following four part：
(1) upper cover plate 2, rounded, lower surface is smooth, there is the bleeding point vacuumized, 2 main function of upper cover plate thereon
It is：The cavity of a closing is formed with heronsbill profiled body 1 and lower cover 3, working medium, such as distilled water are housed in the cavity；
(2) heronsbill profiled body 1,1 external circumferential of heronsbill profiled body are multi-disc fin, heronsbill profiled body 1
Main function is：A, it forms the cavity of a closing with upper cover plate 2 and lower cover 3.B, the main body as radiator, by inside
Heat is conducted to air；
(3) lower cover 3 (band microflute), its main function is：A, itself and upper cover plate 2 and the composition of lower cover 3 one are closed
Cavity.B, the heat for sending LED light is efficiently conducted to working medium.C, one is formed with connecting plate 4, it is logical using what is be provided with thereon
Hole, wire casing, threaded hole mounted LED lamp and other annexes；
(4) connecting plate, is annulus tabular, its main function is：One is formed with lower cover 3, mounted LED lamp and other attached
Part, i.e., as shown in figure 5, there is a round boss in 3 lower face of lower cover, which is engaged (in insertion in annular distance) with connecting plate 4,
Boss diameter is equal with the inner ring bore dia on connecting plate 4, and connecting plate 4 is connected in one with lower cover 3 by agitating friction weldering welding
Rise.Microflute in Circular Plate as shown in figure 3, the width of microflute between 0.1mm~0.2mm, its height is between 1mm~2mm.
Claims (7)
1. a kind of LED lamp heat sink, including heronsbill profiled body (1) and its fin of external circumferential distribution, it is characterised in that：
The axis direction of the heronsbill profiled body (1) has a vacuum cavity for running through heronsbill profiled body (1) both ends of the surface, vacuum
Working medium is filled with cavity, vacuum cavity both ends are respectively upper cover plate (2) and lower cover (3), are connecting plate below lower cover (3)
(4)；
There is the parallel linear pattern microflute of multiple row in the upper surface of the lower cover (3).
A kind of 2. LED lamp heat sink according to claim 1, it is characterised in that：The vacuum cavity is circular cylindrical cavity,
The inner wall of cavity is shiny surface.
A kind of 3. LED lamp heat sink according to claim 1, it is characterised in that：The lower face of the upper cover plate (2) is light
Sliding surface, upper cover plate are provided with vacuum pumping opening on (2).
A kind of 4. LED lamp heat sink according to claim 1, it is characterised in that：The connecting plate (4) is Circular Plate, institute
Stating lower cover (3) lower face has a round boss, and round boss diameter is equal with the inner ring bore dia on connecting plate (4).
A kind of 5. LED lamp heat sink according to claim 1, it is characterised in that：The lower cover (3) and connecting plate (4)
It is connected by agitating friction weldering.
A kind of 6. LED lamp heat sink according to claim 1, it is characterised in that：The lower cover (3) and connecting plate (4)
On be provided with through hole, threaded hole and wire casing.
A kind of 7. LED lamp heat sink according to claim 1, it is characterised in that：The linear pattern width of mini longitudinal channels is in 0.1mm
Between~0.2mm, its height is between 1mm~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216652.4U CN207247152U (en) | 2017-09-21 | 2017-09-21 | A kind of LED lamp heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216652.4U CN207247152U (en) | 2017-09-21 | 2017-09-21 | A kind of LED lamp heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207247152U true CN207247152U (en) | 2018-04-17 |
Family
ID=61885976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721216652.4U Expired - Fee Related CN207247152U (en) | 2017-09-21 | 2017-09-21 | A kind of LED lamp heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207247152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864743A (en) * | 2021-10-21 | 2021-12-31 | 中国科学院工程热物理研究所 | Photo-thermal integrated radiator |
-
2017
- 2017-09-21 CN CN201721216652.4U patent/CN207247152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864743A (en) * | 2021-10-21 | 2021-12-31 | 中国科学院工程热物理研究所 | Photo-thermal integrated radiator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |