CN104033751A - LED lamp having heat dissipation function - Google Patents
LED lamp having heat dissipation function Download PDFInfo
- Publication number
- CN104033751A CN104033751A CN201310074530.6A CN201310074530A CN104033751A CN 104033751 A CN104033751 A CN 104033751A CN 201310074530 A CN201310074530 A CN 201310074530A CN 104033751 A CN104033751 A CN 104033751A
- Authority
- CN
- China
- Prior art keywords
- light fixture
- led light
- radiator
- sinking function
- heat sinking
- 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.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 title abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 4
- 230000005855 radiation Effects 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 210000003608 fece Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an LED lamp having a heat dissipation function. The LED lamp comprises a heat dissipation body, a temperature uniforming steam chamber, a circuit module and at least one LED unit, wherein the heat dissipation body is made of solid metals, and an upper surface and a lower surface are respectively formed at the top and the bottom of the heat dissipation body. The upper surface is provided with a highest point and extends slantly downwards towards the periphery from the highest point, a plurality of protruded blocks are formed on the upper surface and distributed on the upper surface granularly, and a plurality of flow channels are formed between the protruded blocks and extends towards the edge of the heat dissipation body from high to low. A concave part is concavely arranged on the lower surface from bottom to top, the bottom surface of the concave part is flat, the heat dissipation body extends downwards outwards along the bottom surface of the concave part to form an eave part, and an inner inclined plane extending inwards upwards from the bottom edge of the eave part is formed between the concave part and the eave part. The top surface of the temperature uniforming steam chamber adheres to the bottom surface of the concave part; the top surface of the circuit module adheres to the bottom surface of the temperature uniforming steam chamber; and the at least one LED unit is arranged on the bottom surface of the circuit module.
Description
Technical field
The present invention is relevant with LED light fixture, refers to especially a kind of LED light fixture with heat sinking function with great heat radiation effect.
Background technology
Traditional outdoor LED (light emitting diode) light fixture (for example LED street lamp), owing to must considering in open air the environmental factors such as sun solarization of exposing to wind and rain, tend to use a shell to be coated being used for luminous LED chip and associated circuit board thereof in LED light fixture, make rainwater can not enter the short circuit causing on circuit.Because LED light fixture can be supervened high heat in the time working, therefore conventionally can add again a radiator radiating effect is provided again.But, because radiator and LED chip all can be wrapped by the enclosure, cause the air in this shell effectively outwards to shed, make radiating effect limited, such LED light fixture usually can be because of the overheated service life that shortens LED chip.
Some dealer has also made the fin of some quantity on shell, it forms for multiple fins parallel setting, and (this is known structure, hold not with graphic representation), allow the area of dissipation of shell strengthen with this, so that inner high temperature can effectively be discharged, the effect also decreasing with each assembly temperature of scheming to reach in shell.But such radiating effect is very limited.
In addition the set-up mode that, in case surface multiple fin is set also has the dirty problem of easy delay.Traditional multi-disc run-in index radiating fin, its spacing is closeer, while use out of doors, rainwater while raining can fall into the gap between fin, and fallen leaves also may be stuck between gap, or birds excreta and dust etc., all probably be stuck in gap, in the course of time, dirty meeting is solidified, and also may not be certain to wash away totally dirty even if now rain.And the surface that radiating fin contacts with air is covered in dirty meeting, make the radiating efficiency variation of radiating fin.
Summary of the invention
For the problems referred to above, main purpose of the present invention is to provide a kind of LED light fixture with heat sinking function, and it can have than the better radiating effect of existing LED light fixture.
A further object of the present invention is to provide a kind of LED light fixture with heat sinking function, and it can, in the case of not arranging known shell, be used in open air.
Another object of the present invention is to provide a kind of LED light fixture with heat sinking function, and its surperficial heat dissipation design can not blocked leaf or birds excreta, can effectively allow rainwater flow down, and can maintain good heat dissipation.
For achieving the above object, a kind of LED light fixture with heat sinking function provided by the present invention, is characterized in that including: a radiator is solid metal, forms respectively a upper surface and a lower surface in top, the bottom of described radiator; Described upper surface has a peak, described upper surface is tilted to downward-extension by described peak to surrounding, and described upper surface forms multiple projections, each described projection is laid in described upper surface with graininess, and between each described projection, form multiple runners, each described runner presents shape and the edge extension to described radiator from high to low; Described lower surface is arranged with a recess from lower to upper, the bottom surface of described recess is flat condition, and described radiator stretches out along the bottom surface of described recess and forms an eaves portion, and between described recess and described eaves portion, form an interior inclined-plane upwards being extended internally by described eaves portion root edge downwards; One samming vapor chamber, is attached at the bottom surface of described recess with its end face; One circuit module, is attached at the bottom surface of described samming vapor chamber with its end face; At least one LED unit, is located at the bottom surface of described circuit module.
In the technical scheme of the invention described above, described peak is in the central authorities of described upper surface.
Also include a lampshade, be located at the lower surface of described radiator by below, and contain described LED unit, described circuit module and described samming vapor chamber; Described lampshade is provided with multiple pores.
Described lampshade inwall applies one deck heat radiation paint.
Also include at least one group of external terminal, be electrically connected on described circuit module, for being external in power supply.
Each described runner is arranged or random interlace arrangement radially at described upper surface.
Between described samming vapor chamber and described radiator, be provided with a heat eliminating medium.
Described samming vapor chamber is fixed on described radiator by multiple fasteners in the mode that can dismantle.
Described circuit module is the printed circuit that a circuit board or is directly printed on described samming vapor chamber bottom surface, or is a circuit paster that contains described at least one LED unit.
The height of each described projection is less than the width of each described runner.
Adopt technique scheme, effect that the present invention has is: one, have than the better radiating effect of known LED light fixture; Two, can in the situation that shell not being set, be used in open air; Three, the design of the projection on the upper surface of radiator of the present invention can't be blocked leaf or birds excreta, can effectively allow rainwater flow down, to maintain good heat dissipation.
Brief description of the drawings
Fig. 1 is the top view of the present invention's the first preferred embodiment;
Fig. 2 is the cutaway view along 2-2 hatching line in Fig. 1;
Fig. 3 is the cross-sectional schematic of the present invention's the first preferred embodiment, shows difform projection section;
Fig. 4 is the Local Members constitutional diagram of the present invention's the first preferred embodiment, shows the assembled state of samming vapor chamber, circuit module and LED unit;
Fig. 5 is the inversion combination stereogram of the present invention's the first preferred embodiment, and shows the state of radiator partly cut-away;
Fig. 6 is the use state diagram of the present invention's the first preferred embodiment;
Fig. 7 is the top view of the present invention's the second preferred embodiment;
Fig. 8 is the cutaway view along 8-8 hatching line in Fig. 7.
Detailed description of the invention
In order to describe structure of the present invention and feature place in detail, the following preferred embodiment of existing act also coordinates brief description of the drawings as rear, wherein:
As shown in Figures 1 to 5, a kind of LED light fixture 10 with heat sinking function that the present invention's the first preferred embodiment provides, is mainly made up of a radiator 11, a samming vapor chamber 21, a circuit module 31 and at least one LED unit 41, wherein:
Radiator 11, is solid metal, when enforcement, can make by forging type, forms respectively a upper surface 12 and a lower surface 16 in top, the bottom of radiator 11.Upper surface 12 has a peak 121, upper surface 12 is tilted to downward-extension by peak 121 to surrounding, and upper surface 12 forms multiple projections 13, each projection 13 is laid in upper surface 12 with graininess, and between each projection 13, form multiple runners 14, each runner 14 presents middle height and extends to low shape and to the edge of radiator 11.Lower surface 16 is arranged with a downward opening recess 161 from lower to upper, the bottom surface of recess 161 is flat condition, and radiator 11 stretches out downwards along the bottom surface of recess 161 and forms an eaves portion 17, and between recess 161 and eaves portion 17, forms an interior inclined-plane 171 upwards being extended internally by eaves portion 17 root edges.Radiator 11 is in the drawings taking spherical shape as example, but can be also cone-shaped or high and low form around in the middle of other.
The peak 121 of radiator 11 can design in any place that is positioned at upper surface 12 according to the demand in design, and in the present embodiment taking the central authorities that are positioned at upper surface 12 as example.In addition, each projection 13 can be also variform, for example round point shape, roofing tile shape, massif shape or other shapes, and in Fig. 2, taking round point shape as example, Fig. 3 shows the state that projection 13 is massif shape.Again, in the present embodiment, each runner 14 is to be arranged as radially example at upper surface 12, and, in Fig. 1, be to be represented by dotted lines several runners.
Samming vapor chamber 21, is attached at the bottom surface of recess 161 with its end face.Structure and the known heat pipe of samming vapor chamber 21 inside are similar, have the effect of quick samming, and therefore its detailed structure appearance does not repeat.
Circuit module 31, is attached at the bottom surface of samming vapor chamber 21 with its end face.Circuit module 31 can be a circuit board or and is directly printed on the printed circuit of samming vapor chamber 21 bottom surfaces, or can be also a circuit paster that contains at least one LED unit 41, is taking circuit board as example in the present embodiment.
At least one LED unit 41, quantitatively taking one as example, is located at the bottom surface of circuit module 31 in the present embodiment.The structure such as LED chip, sealing of LED unit 41 belongs to known, holds and does not repeat.
The framework of first embodiment of the invention is more than described, next the use state of this first embodiment has been described.
As shown in Figures 1 to 6, the LED light fixture 10 with heat sinking function provided by the present invention before use, is to be arranged on a supporter 91 with radiator 11, for example, be arranged in a vertical rod, and LED unit 41 mode is down arranged.
In use, LED unit 41 is luminous irradiations down, and the heat energy that LED unit 41 produces when luminous just conducts to samming vapor chamber 21 by circuit module 31, by the quick even temperature effect of samming vapor chamber 21, can be by the very fast heat energy radiator 11 that is directed to, and dispel the heat by the huge surface area of radiator 11.When rainy, rainwater can be flowed down along each runner 14 by the upper surface of radiator 11 12, is dripped by eaves portion 17.The setting on the interior inclined-plane 171 by eaves portion 17, just can not flow to samming vapor chamber 21 and circuit module 31 at the rainwater of eaves portion 17, therefore just can not cause the problem of short circuit.In addition, coordinate the design of runner 14 by the graininess of each projection 13, can make leaf or birds excreta can not be stuck in the upper surface 12 of radiator 11, and can effectively allow rainwater flow down, and then be maintained good heat sinking function.Even and if use is indoor, also because its surface is only that graininess projection coordinates the design of runner, and can make dust be difficult for being stuck in surface, still can maintain good heat sinking function.
As can be seen here, effect that this first embodiment can reach is: one, have than the better radiating effect of known LED light fixture; Two, can in the situation that shell not being set, be used in open air; Three, projection 13 designs of radiator 11 upper surfaces 12 of the present invention can't be blocked leaf or birds excreta, can effectively allow rainwater flow down, and can maintain good heat dissipation.
For another example shown in Fig. 7 to Fig. 8, be a kind of LED light fixture 50 with heat sinking function that the present invention's the second preferred embodiment provides, its primary structure is generally same as aforementioned the first embodiment, and difference is:
The shaped slightly of each projection 53 is drops, and is different from the projection 13 of the first embodiment.
Each runner 54 random interlace on upper surface is arranged.This arrangement mode is different from aforementioned the first embodiment, and more various flow path can be provided.
Between radiator 51 and samming vapor chamber 61, be provided with a heat eliminating medium 62, for example thermal grease, scolding tin (material) or heat radiation paster, be attached to the local bottom surface of recess 561 and the local top surface of samming vapor chamber 61 of radiator 51.By the setting of heat eliminating medium 62, can make radiator 51 and the contact-making surface of samming vapor chamber 61 connect larger, and then make the better effects if of heat radiation.
Samming vapor chamber 61 is to be fixed on removably radiator 51 by multiple fasteners 64.Fastener 64 is known member, and its detailed structure appearance does not repeat.By each fastener 64, can improve the convenience of assembling samming vapor chamber 61.
The height of each projection 53 of the upper surface of radiator 51 is less than the width of each runner 54.Thus, can make each projection 53 can be too not high, and then more be difficult for blocking the foreign material such as leaf.
At least one LED unit 81 is taking multiple as example in this second embodiment.
This second embodiment also includes a lampshade 85 and one group of external terminal 87.
Lampshade 85, is located at the lower surface of radiator 51 by below, and contains each LED unit 81, circuit module 71 and samming vapor chamber 61.Lampshade 85 can be transparent light-passing board, or can be also translucent diffuser plate.Can be each LED unit 81, circuit module 71 and samming vapor chamber 61 extra protection effect is provided.In addition, on lampshade 85, be also provided with multiple pores 851, can make the air in lampshade 85 communicate and circulate with extraneous air, or can form flow phenomenon with outside air.
External terminal 87, is electrically connected on circuit module 71, is used for being external in power supply.Thus, can improve the convenience that connects power supply while installation.
Must supplementary notes, on lampshade 85, can be coated with heat radiation paint (not shown), can be thus by thermal energy conduction to radiator 51, and then improving heat radiation efficiency.Or, on lampshade, can be coated with astigmatism paint (not shown), or lampshade itself formation scattering surface (the lampshade surface of for example car light), can make the light that LED unit 81 sends carry out scattering according to required optical characteristics.
All the other structures of this second embodiment and the effect that can reach are all generally same as aforementioned the first embodiment, hold and no longer give and repeating.
Circuit module, LED unit or radiator surface in aforementioned two embodiment, all can apply one deck marine glue, again to improve the effect of waterproof.Because the technology itself that applies marine glue is known techniques, therefore hold no longer with graphic representation.
Claims (10)
1. a LED light fixture with heat sinking function, is characterized in that including:
One radiator, is solid metal, forms respectively a upper surface and a lower surface in top, the bottom of described radiator; Described upper surface has a peak, described upper surface is tilted to downward-extension by described peak to surrounding, and described upper surface forms multiple projections, each described projection is laid in described upper surface with graininess, and between each described projection, form multiple runners, each described runner presents shape and the edge extension to described radiator from high to low; Described lower surface is arranged with a recess from lower to upper, the bottom surface of described recess is flat condition, and described radiator stretches out along the bottom surface of described recess and forms an eaves portion, and between described recess and described eaves portion, form an interior inclined-plane upwards being extended internally by described eaves portion root edge downwards;
One samming vapor chamber, is attached at the bottom surface of described recess with its end face;
One circuit module, is attached at the bottom surface of described samming vapor chamber with its end face;
At least one LED unit, is located at the bottom surface of described circuit module.
2. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: described peak is in the central authorities of described upper surface.
3. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: also include a lampshade, be located at the lower surface of described radiator by below, and contain described LED unit, described circuit module and described samming vapor chamber; Described lampshade is provided with multiple pores.
4. the LED light fixture with heat sinking function as claimed in claim 3, is characterized in that: described lampshade inwall applies one deck heat radiation paint.
5. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: also include at least one group of external terminal, be electrically connected on described circuit module, for being external in power supply.
6. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: each described runner is arranged or random interlace arrangement radially at described upper surface.
7. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: between described samming vapor chamber and described radiator, be provided with a heat eliminating medium.
8. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: described samming vapor chamber is fixed on described radiator by multiple fasteners in the mode that can dismantle.
9. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: described circuit module is the printed circuit that a circuit board or is directly printed on described samming vapor chamber bottom surface, or is a circuit paster that contains described at least one LED unit.
10. the LED light fixture with heat sinking function as claimed in claim 1, is characterized in that: the height of each described projection is less than the width of each described runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310074530.6A CN104033751B (en) | 2013-03-08 | 2013-03-08 | There is the LED lamp of heat sinking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310074530.6A CN104033751B (en) | 2013-03-08 | 2013-03-08 | There is the LED lamp of heat sinking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033751A true CN104033751A (en) | 2014-09-10 |
| CN104033751B CN104033751B (en) | 2016-08-24 |
Family
ID=51464644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310074530.6A Active CN104033751B (en) | 2013-03-08 | 2013-03-08 | There is the LED lamp of heat sinking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033751B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057450Y (en) * | 2007-04-03 | 2008-05-07 | 宁翔科技股份有限公司 | LED lamp structure |
| CN201074795Y (en) * | 2007-09-07 | 2008-06-18 | 深圳市九洲光电子有限公司 | Street lamp cooling device |
| US20090323343A1 (en) * | 2008-06-30 | 2009-12-31 | Pei-Choa Wang | Lamp base improvement of a street lamp |
| CN201696896U (en) * | 2009-04-20 | 2011-01-05 | 南京永乐光电科技有限公司 | Cross-ventilation radiator type high-power LED lamp |
| US20120087118A1 (en) * | 2010-10-07 | 2012-04-12 | Hubbell Incorporated | Led luminaire having lateral cooling fins and adaptive led assembly |
-
2013
- 2013-03-08 CN CN201310074530.6A patent/CN104033751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057450Y (en) * | 2007-04-03 | 2008-05-07 | 宁翔科技股份有限公司 | LED lamp structure |
| CN201074795Y (en) * | 2007-09-07 | 2008-06-18 | 深圳市九洲光电子有限公司 | Street lamp cooling device |
| US20090323343A1 (en) * | 2008-06-30 | 2009-12-31 | Pei-Choa Wang | Lamp base improvement of a street lamp |
| CN201696896U (en) * | 2009-04-20 | 2011-01-05 | 南京永乐光电科技有限公司 | Cross-ventilation radiator type high-power LED lamp |
| US20120087118A1 (en) * | 2010-10-07 | 2012-04-12 | Hubbell Incorporated | Led luminaire having lateral cooling fins and adaptive led assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033751B (en) | 2016-08-24 |
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Effective date of registration: 20170516 Address after: Chinese Taiwan Taoyuan District of Zhongli City Ren Mei two Street No. 116 Patentee after: Jin Jide Address before: The British Virgin Islands holding investment rudderow Cheng Maine Jie Fat Building 3 floor jeep Patentee before: ACMECOOLS TECH. Ltd. |
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Effective date of registration: 20240723 Address after: No. 12, Lane 218, Weihang Road, Baoshan District, Shanghai Patentee after: Swartec (Shanghai) semiconductor technology Co.,Ltd. Country or region after: China Address before: 116 Renmei Second Street, Zhongli District, Taoyuan, Taiwan, China, China Patentee before: Jin Jide Country or region before: TaiWan, China |