CN203656659U - Led lamp - Google Patents
Led lamp Download PDFInfo
- Publication number
- CN203656659U CN203656659U CN201320881705.XU CN201320881705U CN203656659U CN 203656659 U CN203656659 U CN 203656659U CN 201320881705 U CN201320881705 U CN 201320881705U CN 203656659 U CN203656659 U CN 203656659U
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- Prior art keywords
- led light
- light fixture
- circuit board
- radiator
- heat
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- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000002309 gasification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides an LED lamp and relates to the field of illuminators, which comprises an LED light source, a circuit board, a driving power supply and a radiator. The radiator comprises a heat-dissipating board and a heat exchange cavity. The heat-dissipating board is arranged at one end of the heat exchange cavity. The heat exchange cavity is internally provided with a liquid heat exchange medium. The LED light source is arranged on the circuit board. The circuit board is arranged on the heat-dissipating board. The driving power supply is connected with the circuit board. According to the technical scheme of the utility model, the radiator with the phase-transition heat exchange cavity is adopted as the radiator of the LED lamp, so that the heat-dissipating efficiency of the radiator is greatly improved. Therefore, the LED lamp is larger in cooling speed. Even if LEDs adopted by the LED lamp are large in power, the LED lamp is still effective in heat-dissipating effect. In this way, the LED lamp is prevented from being overheated, and the service life of the LED lamp is prolonged.
Description
Technical field
The utility model relates to ligthing paraphernalia field, in particular to a kind of LED light fixture.
Background technology
LED is light emitting diode, is the luminous semi-conductor electricity sub-element of a kind of energy.Occurred as far back as 1962, in recent years continuous being gradually developed to is used as illumination, adopt the LED streetlamp energy-saving of LED as light source, the life-span is long, and the response time is short, environmental protection and luminous color are pure, the trend of following illumination, but the still not good problem of ubiquity radiating effect of existing LED lamp, after high-powered LED lamp or long-time use, LED lamp heating is large, even can cause security incident the service life that affects LED lamp.
Utility model content
The purpose of this utility model is to provide a kind of LED light fixture, to solve the above problems.
The LED light fixture providing at the utility model, comprise LED light source, circuit board, driving power and radiator, described radiator comprises heat sink and heat exchanging chamber, described heat sink is arranged on one end of described heat exchanging chamber, in described heat exchanging chamber, be provided with liquid heat transfer medium, described LED light source is arranged on described circuit board, and described circuit board is arranged on described heat sink, and described driving power is connected with described circuit board.
The heat of LED light fixture concentrates on circuit board, circuit board is arranged on heat sink, utilize the heat exchanging chamber and the fin that are connected with heat sink to carry out heat exchange, because heat exchanging chamber adopts phase-change heat-exchange, by the gasification of liquid heat transfer medium and the circulation of liquefaction, improve radiating efficiency and the radiating rate of whole LED light fixture.
Further, described LED light fixture also comprises lampshade and lamp socket, and described lampshade is buckled on described circuit board, and described lamp socket is connected with the other end of described heat exchanging chamber.Employing lampshade and lamp socket can ensure the safety of internal circuit, increase the service life of LED light fixture.
Further, the inwall of described heat exchanging chamber is provided with capillary channel, can realize the transmission of liquid heat transfer medium by capillary channel, be not subject to user to restriction.
Further, described heat exchanging chamber inside is vacuum.The heat exchanging chamber internal thermal resistance of vacuum is less, and heat exchange efficiency is higher, and radiating rate is fast.
Further, described radiator also comprises fin, and described fin is arranged on the outer wall of described heat exchanging chamber.Can expand further heat exchange area by fin is installed, improve radiating efficiency, make radiating rate faster.
Further, described fin is provided with groove.Groove can increase the heat exchange area of fin, improves radiating rate.
Further, the free end of described fin is provided with U-shaped sheet, and U-shaped sheet can space efficient, further increases heat exchange area.
Further, described fin is radial fins.Radial fins is easy to process, and structural strength is large, is not easy to occur deformation.
Further, between described radiator and described driving power, be provided with splash guard.Can effectively avoid Liquid Penetrant in driving power by splash guard is set, damage the circuit in driving power.
Further, mind-set circuit board direction depression in described heat sink.The heat sink of depression is more conducive to condensed liquid heat transfer medium and flows, and improves heat exchange efficiency.
The beneficial effects of the utility model are to adopt to comprise that the radiator in phase-change heat-exchange chamber is as the radiator of LED light fixture, greatly improve the radiating efficiency of radiator, cooling velocity is faster, make the high-power LED light fixture also can efficiently radiates heat, avoid LED light fixture overheated, extended the service life of LED light fixture.
Brief description of the drawings
The cutaway view of the LED light fixture that Fig. 1 provides for the utility model the first embodiment;
The cutaway view of the LED light fixture that Fig. 2 provides for the utility model the second embodiment;
The schematic diagram of the radiator of the LED light fixture that Fig. 3 provides for the utility model the second embodiment;
The cutaway view of the LED light fixture that Fig. 4 provides for the utility model the 3rd embodiment;
The top view of the radiator of the LED light fixture that Fig. 5 provides for the utility model the 3rd embodiment;
The schematic diagram of the radiator of the LED light fixture that Fig. 6 provides for the utility model the 3rd embodiment.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figure 1, the LED light fixture that the utility model the first embodiment provides, comprise, LED light source 2, circuit board, driving power 5 and radiator, described radiator comprises heat sink 9 and heat exchanging chamber 7, heat sink 9 is arranged on one end of heat exchanging chamber 7, in heat exchanging chamber 7, be provided with liquid heat transfer medium 10, LED light source 2 is arranged on circuit board 3, and circuit board 3 is arranged on heat sink 9, and driving power 5 is connected with circuit board 3.
The LED light fixture that the present embodiment provides is by utilizing the heat exchanging chamber 7 in radiator mainly to dispel the heat, the built-in liquid heat transfer medium 10 of heat exchanging chamber 7, in the time there is the temperature difference in the two ends of heat exchanging chamber, liquid heat transfer medium 10 is in hot junction heat absorption evaporation, and shift to cold junction fast, after cold junction release heat, be condensed into liquid, inwall along heat exchanging chamber 7 is got back to hot junction, the continuous circulation of liquefying by the gasification of liquid heat transfer medium 10, the a large amount of heat in hot junction is shifted rapidly, the temperature in hot junction just can lower fast, the heat-transfer rate of whole radiator is fast, heat conductivility is stable, cyclic fluctuation is little, life-span is long, ensure that LED light fixture can be not overheated, extend the service life of LED light fixture.
As Figure 2-3, the LED light fixture that the utility model the second embodiment provides, comprise lampshade 1, LED light source 2, circuit board 3, driving power 5, radiator and lamp socket 6, described radiator comprises heat sink 9, fin and heat exchanging chamber 7, heat sink 9 is arranged on one end of heat exchanging chamber 7, fin is radial fins 8, radial fins 8 is arranged on the outer wall of heat exchanging chamber 7, in heat exchanging chamber 7, be provided with liquid heat transfer medium 10, LED light source 2 is arranged on circuit board 3, circuit board 3 is arranged on heat sink 9, driving power 5 is connected with circuit board 3, driving power 5 is placed in lamp socket 6, lampshade 1 cover is buckled on circuit board 3, lamp socket 6 is connected with the other end of heat exchanging chamber 7.
The LED light fixture that the present embodiment provides utilizes lampshade 1 and lamp socket 6 to ensure the safety of internal circuit, increases the service life of LED light fixture.Be arranged on the radial fins 8 of heat exchanging chamber 7 outer walls, improved further the power of radiator, the heat-transfer rate of whole radiator is accelerated.
As Figure 4-Figure 6, the LED light fixture that the utility model the 3rd embodiment provides, comprise lampshade 1, LED light source 2, circuit board 3, driving power 5, radiator and lamp socket 6, described radiator comprises heat sink 9, fin and heat exchanging chamber 7, heat sink 9 is arranged on one end of heat exchanging chamber 7, mind-set circuit board 3 direction depressions in heat sink 9.Fin is radial fins 8, radial fins 8 is arranged on the outer wall of heat exchanging chamber 7, in heat exchanging chamber 7, be provided with liquid heat transfer medium 10, LED light source 2 is arranged on circuit board 3, circuit board 3 is arranged on heat sink 9, and driving power 5 is connected with circuit board 3, and driving power 5 is placed in lamp socket 6, lampshade 1 cover is buckled on circuit board 3, and lamp socket 6 is connected with the other end of heat exchanging chamber 7.Heat exchanging chamber 7 inwalls are provided with capillary channel 13.Heat exchanging chamber 7 inside are vacuum.Radial fins 8 is provided with groove 12.Radial fins 8 radial radiation shapes are arranged on heat exchanging chamber 7 outer walls.The free end of radial fins 8 is provided with U-shaped sheet 11.Described radiator squeezes type processing.Between described radiator and driving power 5, be provided with splash guard 14.
By the radial fins 8 that is arranged on heat exchanging chamber 7 outer walls, improve further the power of radiator, the fin of the present embodiment is radial fins 8 instead of the fin that adopts other shapes, because the fin structure of other shapes is unstable, easily there is deformation, also more complicated of processing simultaneously, ratio of briquetting is low, increases manufacturing cost.Radial fins 8 is provided with groove 12, and free end is provided with U-shaped sheet 11, and the area of dissipation that these have all increased radial fins 8, has improved radiating efficiency.
The heat exchanging chamber 7 of vacuum, thermal resistance is less, heat exchange efficiency is higher, has realized more fast heat radiation, and the offering of capillary channel 13, can utilize capillarity, realize the use of the different directions of this light fixture, even LED light fixture is used upward, the liquid heat transfer medium 10 of condensation can flow along capillary channel 13, overcome centrifugal force, again get back to hot junction and continue endothermic gasification.Between radiator and driving power 5, splash guard 14 is set, can effectively avoids water to penetrate in driving power 5, burn out driving power 5, splash guard 14 make LED light fixture that the present embodiment provides can environment in the open in relieved use.
When the radiator of the LED light fixture that provides of processing the present embodiment, can adopt and squeeze type process technology.Adopt the radiator of the type of squeezing processing to there is good ratio of briquetting and structural strength, in use, be subject to thermogenetic should diminishing, long service life, good heat dissipation effect.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a LED light fixture, it is characterized in that, comprise LED light source, circuit board, driving power and radiator, described radiator comprises heat sink and heat exchanging chamber, described heat sink is arranged on one end of described heat exchanging chamber, in described heat exchanging chamber, is provided with liquid heat transfer medium, and described LED light source is arranged on described circuit board, described circuit board is arranged on described heat sink, and described driving power is connected with described circuit board.
2. LED light fixture according to claim 1, is characterized in that, described LED light fixture also comprises lampshade and lamp socket, and described lampshade is buckled on described circuit board, and described lamp socket is connected with the other end of described heat exchanging chamber.
3. LED light fixture according to claim 1, is characterized in that, the inwall of described heat exchanging chamber is provided with capillary channel.
4. LED light fixture according to claim 1, is characterized in that, described heat exchanging chamber inside is vacuum.
5. LED light fixture according to claim 1, is characterized in that, described radiator also comprises fin, and described fin is arranged on the outer wall of described heat exchanging chamber.
6. LED light fixture according to claim 5, is characterized in that, described fin is provided with groove.
7. LED light fixture according to claim 5, is characterized in that, the free end of described fin is provided with U-shaped sheet.
8. LED light fixture according to claim 5, is characterized in that, described fin is radial fins.
9. LED light fixture according to claim 1, is characterized in that, between described radiator and described driving power, is provided with splash guard.
10. LED light fixture according to claim 1, is characterized in that, mind-set circuit board direction depression in described heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881705.XU CN203656659U (en) | 2013-12-30 | 2013-12-30 | Led lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881705.XU CN203656659U (en) | 2013-12-30 | 2013-12-30 | Led lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656659U true CN203656659U (en) | 2014-06-18 |
Family
ID=50923042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320881705.XU Expired - Lifetime CN203656659U (en) | 2013-12-30 | 2013-12-30 | Led lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931326A (en) * | 2017-04-24 | 2017-07-07 | 宁波力品格相变照明有限公司 | One kind is integrally formed microflute group's radiating solid phosphor LED lamp |
-
2013
- 2013-12-30 CN CN201320881705.XU patent/CN203656659U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931326A (en) * | 2017-04-24 | 2017-07-07 | 宁波力品格相变照明有限公司 | One kind is integrally formed microflute group's radiating solid phosphor LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |