CN201306630Y - A lighting device and heat radiator thereof - Google Patents
A lighting device and heat radiator thereof Download PDFInfo
- Publication number
- CN201306630Y CN201306630Y CNU2008202124691U CN200820212469U CN201306630Y CN 201306630 Y CN201306630 Y CN 201306630Y CN U2008202124691 U CNU2008202124691 U CN U2008202124691U CN 200820212469 U CN200820212469 U CN 200820212469U CN 201306630 Y CN201306630 Y CN 201306630Y
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- pedestal
- lighting device
- radiator
- led
- base
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model discloses a lighting device and heat radiator thereof; the lighting device comprises a heat radiator and a LED; the heat radiator comprises a base and a plurality of fins; the base of the heat radiator includes a concave groove, or the base is hollow in central axis direction; the LED is arranged in the concave groove bottom or the hollow base; the fins are extended from the peripheral outer wall of the base. The lighting device and heat radiator thereof can effectively guarantee the lighting quality and service life of lighting device.
Description
Technical field
The utility model relates to a kind of lighting device, particularly relates to light emitting diode (LED, Light-emitting Diode) lamp and radiator thereof.
Background technology
LED can be used as a kind of light source of high benefit.Because little, the low power consumption and other advantages of volume, LED is widely used in fields such as automobile, traffic lights indication, screen display even illumination.During as illuminations, lighting device is compared its power saving rate with incandescent lamp, fluorescent lamp and can be reached more than 70%.
Along with the development of application demand, need more and more high power illumination devices.But as characteristics of solid light source itself, the heat that high-power more LED sends when work is also high more.Can these heats that send in time derive or distribute, and becomes the key factor that influences LED luminescent quality and life-span.For effectively dispelling the heat the instrument of heat radiation when prior art provides a kind of aluminum extruded formula radiator to be used as LED work.Described radiator roughly is a square structure, comprises plate-shaped base and at the vertically and horizontally arranged a plurality of fins of pedestal one side.The another side of described pedestal is then installed LED.The high heat that radiator by fin structure comes to produce when LED worked is evacuated.
The inventor finds through long-term practice, when using more high-power LED or adopt a plurality of LED to work, the radiator that needs larger volume is led light source work, but when requiring radiator to be the certain volume restriction, its heat dispersion is not good enough, be that above-mentioned prior art radiator is failed fine characteristics in conjunction with led light source to satisfy the application need of led light source, be difficult to guarantee luminescent quality and the life-span of LED.
The utility model content
Be difficult to guarantee the luminescent quality of LED and the technological deficiency in life-span owing to radiating efficiency is not high for solving the prior art lighting device, the utility model provides a kind of and dispels the heat well, effectively guarantees the lighting device and the radiator thereof in LED luminescent quality and life-span.
A kind of lighting device is provided, comprise radiator and LED, described radiator comprises pedestal and a plurality of fin, the pedestal of described radiator comprises groove, or described pedestal is in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, and described fin extends from the outer wall all around of described pedestal.
In the better embodiment, the fin length of described pedestal one end is long than the other end, and forming cross section, described pedestal central shaft place is bowl-shape structure.
In the better embodiment, the madial wall of the bowl-shape opening part of described pedestal has first bulge loop, also further comprise the lens that are arranged on the described LED exiting surface and the ring-type card on the lens, sidewall has second bulge loop around the described lens, described card peripheral part has downward extension and trip outwardly, second bulge loop of the described lens of the downward jam of described card peripheral part, its trip probe under first bulge loop of described pedestal madial wall and described first bulge loop of jam upwards.
In the better embodiment, described fin is thicker near the part of pedestal, away from the attenuation that diminishes gradually of the direction of pedestal.
In the better embodiment, further comprise fixing described bowl-shape radiator bottom base, be arranged on control panel assembly and metallic conduction pin on the base, described metallic conduction pin one end runs through described base to connect power supply, the described control panel assembly of another termination, the output of described control panel assembly meets described LED.
In the better embodiment, further comprise fixing described bowl-shape radiator bottom lamp holder, described lamp holder is to have externally threaded universal socket, or outer wall has the universal socket of outstanding buckle, or the universal socket of electrode buckle form.
In the better embodiment, further comprise the substrate of the described LED of surface bears, the bottom surface of described substrate fits in the bottom portion of groove of described pedestal or the side of described substrate connects described pedestal madial wall, and then described LED is fixed on the described radiator.
In the better embodiment, described number of fins is between 18 to 26.
A kind of radiator also is provided, comprise pedestal and a plurality of fin, the pedestal of described radiator comprises groove, or described pedestal is in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, and described fin extends from the outer wall all around of described pedestal.
The beneficial effects of the utility model are: be different from the lighting device that prior art adopts the square structure radiator, the utility model especially at the led light source small size, in the characteristics of special angle output light, the technical scheme of outer wall distribution fin around pedestal is proposed; Simultaneously, LED is arranged in the pedestal, like this, the heat that produces during LED work is transferred to radiator base immediately, and pedestal promptly is the center with LED, and heat is exhaled from fin all around.From hot transmission route, heat is dispersed rapidly from all directions from described radiator mediad, reaches the technique effect of big area of dissipation under the small size situation, so radiating efficiency obviously improves the luminescent quality and the life-span of assurance lighting device; Simultaneously, utilize the certain characteristics of LED lighting angle that LED is located in the radiator, do not influence the volume that LED reduces entire lighting device luminous the time more dexterously, save material and good looking appearance.
Description of drawings
Fig. 1 is the assembling schematic diagram of the utility model lighting device first embodiment;
Fig. 2 is the schematic perspective view of radiator among Fig. 1;
Fig. 3 is the schematic perspective view of radiator under the handstand situation among Fig. 1;
Fig. 4 is the schematic perspective view of LED and substrate in combination among Fig. 1;
Fig. 5 is the schematic perspective view of lens among Fig. 1;
Fig. 6 is the schematic perspective view of card among Fig. 1;
Fig. 7 is the schematic perspective view of base among Fig. 1;
Fig. 8 is the schematic perspective view after the lighting device assembling among Fig. 1;
Fig. 9 is the side schematic view after the lighting device assembling among Fig. 1;
Figure 10 is the schematic perspective view of the base in the utility model lighting device second embodiment;
Figure 11 is the schematic perspective view of the lamp holder in the utility model lighting device second embodiment;
Figure 12 is the schematic perspective view after the assembling of the utility model lighting device second embodiment;
Figure 13 is the schematic perspective view of the lamp holder in the utility model lighting device the 3rd embodiment;
Figure 14 is the schematic perspective view after the assembling of the utility model lighting device the 3rd embodiment;
Figure 15 is the schematic perspective view of the lamp holder in the utility model lighting device the 4th embodiment;
Figure 16 is the side schematic view after the assembling of the utility model lighting device the 4th embodiment.
The specific embodiment
The practice of inventor of the present utility model through for a long time led light source being combined with radiator, export the characteristics of light at the led light source small size, at special angle, the outer wall all around of inventing out radiator base is provided with the technical scheme of fin, with the area of dissipation of effective increase radiator, to reach the technique effect of area of dissipation bigger under the small size situation.Simultaneously LED is arranged in the radiator, and leaves a blank so that light penetrates, do not influence the volume that LED reduces entire lighting device luminous the time more dexterously, the utility model is further specified below in conjunction with drawings and embodiments in the direction of LED output light.
Consulting Fig. 1, is the assembling schematic diagram of the utility model lighting device first embodiment.Described lighting device comprises stacked successively base 110, metallic conduction pin 120, control panel assembly 130, screw 140, radiator 150, LED and board unit 170, lens and ring-type card 190.
Consult Fig. 2 and Fig. 3 together, described radiator 150 is aluminum extruded formula structures, adopts the aluminium of 99% purity to make, and comprises pedestal 151 and a plurality of fin 152.Described pedestal 151 comprises groove 1513, and the bottom 1512 (shown in Figure 2) of groove 1513 has a plurality of through holes (not indicating), and the opening part madial wall of groove 1512 has first bulge loop 1511.
Described fin 152 is parallel to the central shaft of described pedestal 151, and all from described column pedestal 151 around outer wall radially extend.Fin 152 length of described pedestal 151 1 ends are long than the other end, and forming cross section, described pedestal 151 central shaft place is bowl-shape structure.The opening of described pedestal bowl structure is the opening of described groove 1513.In addition, described fin 152 is thicker near the part of pedestals 151, and in the attenuation that diminishes gradually of the radial direction away from pedestal 151.
In the present embodiment, described fin 152 is small-sized fin, and its quantity is between the 18-26 sheet, and in other embodiments, described fin can suitably be done greatly, and quantity then can correspondingly reduce.
Consult Fig. 4, described LED and board unit 170 comprise substrate 171 and are carried on the LED 172 on substrate 171 1 surfaces.Bottom surface applying said base 151 grooves 1513 bottoms of described substrate 171, and then described LED 172 is fixed on the described radiator 150.The periphery of described substrate 171 also comprises screw hole 173.
Consult Fig. 5, described lens 180 are positioned at exiting surface one side of LED 172.Lens 180 are turbination structures, and less bottom is over against the exiting surface of described LED 172, and bigger top is a light gasing surface.Sidewall has second bulge loop 181 around the described lens 180.
Consult Fig. 6, described card 190 is to adopt V0 to electroplate ABS (AcrylonitrileButadiene Styrene, the acrylonitrile-butadiene-styrene copolymer) card of level, is arranged on the lens 180.The circular periphery inboard of described card 190 has downward extension and trip 191 outwardly.In when assembling, second bulge loop 181 of the described lens 180 of the described downward jam of card 190 peripheral parts, its trip 191 probe under first bulge loop 1511 of described radiator 150 pedestals 151 madial walls and described first bulge loop 1511 of jam upwards.Simultaneously, described first bulge loop 1511 of jam under the circular periphery lateral of described card 190, and then lens 180 and card 190 are fixed on the described radiator 150 simultaneously.Card 190 and lens 180 bigger bottoms flush with described radiator end face substantially.
Consult Fig. 7, described base 110 is used to accommodate control panel assembly 130, and fixing described bowl-shape radiator 150 bottoms.Described base 110 comprises screw hole post 111, during assembling, utilize the screw hole 173 on LED and the board unit 170, the through hole of groove 1513 bottoms 1512 in radiator 150 pedestals 151, adopt screw 140 grades above-mentioned LED and board unit 170, radiator 150 and foot of radiator 110 lockings.
During assembling, described base 110 fixing described control panel assemblies 130 adopt screw 140 grades to connect described base 110, radiator 150 and LED and board unit 170.Described metallic conduction pin 120 1 ends run through described base 110 to connect the power supply of outside, the described control panel assembly 130 of another termination.The output of described control panel assembly 130 meets described LED 172.Be assembled at last as Fig. 8 and lighting device shown in Figure 9.
In sum, be different from the lighting device that prior art adopts the square structure radiator, the utility model especially at the led light source small size, in the characteristics of special angle output light, propose around radiator 150 pedestals 151, to be provided with the technical scheme of fin 152.Simultaneously, LED 172 is arranged in the pedestal 151, like this, the heat that produces during LED 172 work is transferred to radiator 150 pedestals 151 by substrate 171 immediately, and pedestal 151 is the center with LED 172 promptly, and heat is exhaled from fin 152 all around.From hot transmission route, except leaving the space that LED emits beam for, entire radiator 150 is the bowl bodies of the deep trouth of outer wall arrangement all around, heat is dispersed rapidly from all directions from described bowl bodies mediad, reach the technique effect that to obtain bigger area of dissipation under the small size situation, therefore radiating efficiency obviously improves, and guarantees the luminescent quality and the life-span of lighting device; Simultaneously, utilize the certain characteristics of LED lighting angle that LED 172 is located in the radiator 150, do not influence the volume that LED 172 reduces entire lighting device luminous the time more dexterously, save material and good looking appearance.
Consult Figure 10 and Figure 11, the utility model second embodiment comprises base 220 and lamp holder 210.Described base 220 is similar with the base 120 of above-mentioned the utility model first embodiment, also comprises screw hole post 221.Described lamp holder 210 is the universal sockets that can patch common lamp socket, has external screw thread and interior rib-loop.Cooperate the interior rib-loop of lamp holder 210, the outer rib-loop of above-mentioned base 220 bottoms can screw in described lamp holder 210, to make up described base 220 and lamp holder 210, obtains structure as shown in figure 12.
Consult Figure 13, the lamp holder of the utility model lighting device can also be the universal socket that adopts independent buckle form, and promptly the outer wall at lamp holder 310 is provided with outstanding buckle 311, and electrode 312 then is arranged on lamp holder 310 bottoms fully.Described lamp holder 310 can cooperate the base 220 in above-mentioned second embodiment, obtains structure as shown in figure 14.The lighting device of this structure can be fit to other to be used, and makes that the range of application of the utility model lighting device is wider.
Consult Figure 15, the lamp holder of the utility model lighting device can also be the universal socket that adopts electrode buckle form, the big tip electrode 411 that is about to lamp holder 410 bottoms is as outstanding buckle, can be buckled in the respective electrical socket, both the priming illumination device was also connected power supply simultaneously, obtained structure as shown in figure 16.The lighting device of this structure can be fit to more other to be used, and makes that the range of application of the utility model lighting device is wider.
In addition, the radiator 150 of present embodiment and substrate 171 can adopt the aluminium of 99% purity to make, and prove through repetition test, for undersized fin, the fin 152 of 18 to 26 quantity can reach higher radiating effect, has higher quality and long service life when guaranteeing the work of the utility model lighting device.
And the lamp holder 210,310,410th of this lighting device embodiment, universal socket is suitable for the socket of present most lighting device, and is easy to use.
In more embodiments, the pedestal of described radiator can be made the structure in central axis direction hollow, and described LED then can be set directly in the described hollow base, or is carried on substrate surface, and the side by substrate connects described pedestal madial wall.Can adopt the tin material as between described substrate 171 and radiator 150 pedestals 151 and the heat-conduction medium between LED 172 and the substrate 171, its preferable selection can be solid-state tin (being tin bar) or liquid tin or paste tin (being tin cream) or other then material that is equal to etc.In addition, said base 151 and substrate 171 can adopt same metal material or different metal material to constitute.And this metal material is gold, silver, copper, aluminium or its alloy formation.
Need to prove, the core component of the utility model lighting device comprises radiator and LED, described radiator comprises pedestal and a plurality of fin, the pedestal of described radiator comprises groove, or described pedestal is in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, described fin extends from the outer wall all around of described pedestal, as long as possess said structure, promptly constitute complete embodiment, because such embodiment is different from the lighting device that prior art adopts the square structure radiator, fin promptly is set around radiator base, the heat that LED is produced exhales from fin all around, reach the technique effect that to obtain bigger area of dissipation under the small size situation, therefore, can improve radiating efficiency equally, guarantee the luminescent quality and the life-span of lighting device; Reduce volume simultaneously and save material, good looking appearance.
In like manner, the radiator that has said structure, promptly radiator comprises pedestal and a plurality of fin, the pedestal of described radiator comprises groove or in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, and described fin extends from the outer wall all around of described pedestal.Such radiator also constitutes complete embodiment, and also is the part of the utility model design, belongs to same inventive concept.
Be noted that also in other embodiments, the pedestal of described radiator is not limited to hollow structure; Described LED also can directly be fixed on the radiator, does not need substrate; Described cell-shell, base etc. also can adopt any suitable shape; Described lamp holder also is not limited to the holder structure of incandescent lighting device, but can adopt any suitable holder structure; Described radiator or substrate are not limited to adopt aluminum to make, and can adopt other suitable metal materials that comprise copper to make.
More than a kind of lighting device provided by the utility model and radiator thereof are described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1, a kind of lighting device, comprise radiator and LED, described radiator comprises pedestal and a plurality of fin, it is characterized in that: the pedestal of described radiator comprises groove, or described pedestal is in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, and described fin extends from the outer wall all around of described pedestal.
2, lighting device according to claim 1 is characterized in that: the fin length of described pedestal one end is long than the other end, and forming cross section, described pedestal central shaft place is bowl-shape structure.
3, lighting device according to claim 2, it is characterized in that: the madial wall of the bowl-shape opening part of described pedestal has first bulge loop, also further comprise the lens that are arranged on the described LED exiting surface and the ring-type card on the lens, sidewall has second bulge loop around the described lens, described card peripheral part has downward extension and trip outwardly, second bulge loop of the described lens of the downward jam of described card peripheral part, its trip probe under first bulge loop of described pedestal madial wall and described first bulge loop of jam upwards.
4, lighting device according to claim 2 is characterized in that: described fin is thicker near the part of pedestal, away from the attenuation that diminishes gradually of the direction of pedestal.
5, lighting device according to claim 2, it is characterized in that: further comprise fixing described bowl-shape radiator bottom base, be arranged on control panel assembly and metallic conduction pin on the base, described metallic conduction pin one end runs through described base to connect power supply, the described control panel assembly of another termination, the output of described control panel assembly meets described LED.
6, lighting device according to claim 2, it is characterized in that: further comprise fixing described bowl-shape radiator bottom lamp holder, described lamp holder is to have externally threaded universal socket, or outer wall has the universal socket of outstanding buckle, or the universal socket of electrode buckle form.
7, according to each described lighting device of claim 1 to 6, it is characterized in that: the substrate that further comprises the described LED of surface bears, the bottom surface of described substrate fits in the bottom portion of groove of described pedestal or the side of described substrate connects described pedestal madial wall, and then described LED is fixed on the described radiator.
8, according to each described lighting device of claim 1 to 6, it is characterized in that: described radiator is aluminum extruded formula structure.
9, according to each described lighting device of claim 1 to 6, it is characterized in that: described number of fins is between 18 to 26.
10, a kind of radiator, comprise pedestal and a plurality of fin, it is characterized in that: the pedestal of described radiator comprises groove or in central axis direction hollow, described LED is arranged in described bottom portion of groove or the hollow base, and described fin extends from the outer wall all around of described pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124691U CN201306630Y (en) | 2008-10-21 | 2008-10-21 | A lighting device and heat radiator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124691U CN201306630Y (en) | 2008-10-21 | 2008-10-21 | A lighting device and heat radiator thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201306630Y true CN201306630Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202124691U Expired - Fee Related CN201306630Y (en) | 2008-10-21 | 2008-10-21 | A lighting device and heat radiator thereof |
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| CN (1) | CN201306630Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322539A (en) * | 2013-06-21 | 2013-09-25 | 华南理工大学 | LED (light-emitting diode) bulb lamp radiator with small holes formed in radiating body |
-
2008
- 2008-10-21 CN CNU2008202124691U patent/CN201306630Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322539A (en) * | 2013-06-21 | 2013-09-25 | 华南理工大学 | LED (light-emitting diode) bulb lamp radiator with small holes formed in radiating body |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20171021 |