CN101377290B - LED lamp with heat radiation structure - Google Patents
LED lamp with heat radiation structure Download PDFInfo
- Publication number
- CN101377290B CN101377290B CN2007100767668A CN200710076766A CN101377290B CN 101377290 B CN101377290 B CN 101377290B CN 2007100767668 A CN2007100767668 A CN 2007100767668A CN 200710076766 A CN200710076766 A CN 200710076766A CN 101377290 B CN101377290 B CN 101377290B
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- Prior art keywords
- fin
- led lamp
- radiator
- endothermic section
- light emitting
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- 230000005855 radiation Effects 0.000 title claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 241000278713 Theora Species 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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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 invention provides an LED lamp, which comprises an LED module and a radiator attached to and used to cool the LED module. The radiator consists of a heat absorption part contacting with the LED module, wherein, a plurality of radiating fins are mounted on the upper surface of the heat absorption part, one side wall is connected to the outside ends of the radiating fins; the outside ends of the radiating fins protrude the external edge of the heat absorption part, and air channels communicated with each other are surrounded by the heat absorption part, the side wall and two adjacent radiating fins. Compared with the prior art, the air channels, which are arranged on the radiator of the LED of the invention, are capable of enhancing the contact of the air and the radiator, and the same time strengthening the vertical convection of air in the heat absorption part. The invention achieves better cooling effect only through the structural design of the radiator, and ensures the efficient and stable operation of the LED lamp.
Description
Technical field
The present invention relates to a kind of led lamp, be meant a kind of led lamp especially with radiator structure.
Background technology
Light emitting diode is as a kind of light emitting source efficiently, has many characteristics such as environmental protection, brightness height, power saving, life-span be long and applied to various fields widely, as lighting apparatus such as street lamps.But, can produce a large amount of heats during light emitting diode work, if these heats can not get distributing timely, make light emitting diode produce superheating phenomenon easily, and then cause its luminous efficiency to descend.
At the traditional solution of electronic element radiating problem one radiator is installed on heat-generating electronic elements normally, this radiator comprises the base plate that closely contacts with electronic component, is located at the some radiating fins on the base plate.This radiator generally only depends on radiation mode outwards to dispel the heat, and efficient is lower, easily causes gathering of heat, influences the luminous efficiency of led lamp.For strengthening mobile, the enhance heat effect of radiator surrounding air, on radiator, increase by a fan, but fan self is easy to generate heat, produces noise, and increased the whole power consumption of led lamp, cost is increased.
Summary of the invention
In view of this, be necessary to provide a kind of led lamp with radiator structure, its radiator structure can carry out good heat radiation to light emitting diode module by steering current.
A kind of led lamp, comprise that a light emitting diode module, is in order to be sticked and to cool off the radiator of described light emitting diode module, described radiator comprises the endothermic section that contacts with light emitting diode module, the upper surface of wherein said endothermic section is equipped with some fin, and a sidewall connects the outboard end of described fin; The outboard end of described fin exceeds the external margin of endothermic section, and surrounds some gas channels that are communicated with up and down jointly by endothermic section, sidewall and two adjacent fin, and described air passage directs airflow flows to radiator.
Compared with prior art, form some gas channels on the radiator of led lamp of the present invention, can strengthen contacting of air and radiator, strengthen air simultaneously in radiating part convection current up and down, the present invention only can realize the led lamp better radiating effect by the design on the heat spreader structures, has guaranteed that light emitting diode module efficiently, stably work.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Description of drawings
Fig. 1 is the three-dimensional assembly diagram of led lamp of the present invention.
Fig. 2 is the three-dimensional exploded view of Fig. 1.
Fig. 3 is the inversion figure of LED radiator among Fig. 2.
Fig. 4 is the vertical view of LED radiator among Fig. 2.
Fig. 5 is that the air-flow of radiator moves towards figure among Fig. 1.
The specific embodiment
As shown in Figures 1 and 2, led lamp of the present invention comprises that a light emitting diode module 700, covers at the lamp holder 900 that lampshade 300 and on this radiator 100 is installed on radiator 100 tops in order to the radiator 100, that is sticked and cool off this light emitting diode module 700.One drive circuit module 800 is contained in this radiator 100 and with light emitting diode module 700 and electrically connects.
Described light emitting diode module 700 comprises some light emitting diodes (figure does not show) and carries the circuit board 701 of these light emitting diodes.Circuit board 701 is provided with the installing hole 703 at some intervals, and these light emitting diodes are embedded in the corresponding installing hole 703 and with circuit board 701 and electrically connect.The center of circuit board 701 is provided with a through hole 705.
Lampshade 300 is located at its inside for the hollow bowl structure and with light emitting diode module 700, and it is normally made by transparent plastics, glass or other materials.This lampshade 300 is placed in the bottom of described radiator 100, and the chamber of forming a sealing with radiator 100 is with ccontaining light emitting diode module 700 and stop objects such as dust, insect to enter the lighting effects that lampshade 300 influences light emitting diode module 700.
The appearance profile of described radiator 100 roughly is the inverted round table shape, and the materials such as aluminium good by heat conductivility is made into integration.Described radiator 100 comprises an endothermic section 10, from the endothermic section 10 end face central vertical upwardly extending one cylindric connecting portion 40, be positioned at some first, second fin 20,30 of endothermic section 10 upper surfaces and connect the annular sidewall 50 of first, second fin 20,30.These first, second fin 20,30 extend towards the center of radiator 100 and radially distribute around connecting portion 40.This annular sidewall 50 connects the outermost end of first, second fin 20,30, and these first, second fin 20,30 are around in its inside.
Please further consult Fig. 3 and Fig. 4, described endothermic section 10 is in the form of annular discs, and it comprises an absorber plate 11 of a circle and a ring wall 13 that extends vertically downward from these absorber plate 11 outers.One centre bore 15 is arranged at the center of absorber plate 11, and this centre bore 15 is corresponding with through hole 705 on the circuit board 701, so that the electric wire on the circuit board 701 (figure does not show) electrically connects with drive circuit die set 800.Described light emitting diode module 700 comprises a pad (figure does not show), and this pad is sticked at the basal surface of absorber plate 11.Described light emitting diode module 700 is installed in the basal surface of this pad.Described lampshade 300 is tightly connected with the ring wall 13 of endothermic section 11.
The periphery of described connecting portion 40 has outwards protruded out four projections 41 symmetrically along axis direction, and the middle part of each projection 41 all offers a Luo hole 42 so that retaining element such as screw etc. close and lamp holder 900 is fixed on the radiator 100 with this Luo hole 42 Luo.Four Luo posts 43 be formed at the centre bore 15 that is distributed in absorber plate 11 on the absorber plate 11, uniformly around and be located in connecting portion 40 inside, be used for screw fit drive circuit die set 800 being fixed in the connecting portion 40 of radiator 100.
Described first, second fin 20,30 is formed at the upper surface of described endothermic section, and radially distributes around connecting portion 40.Each first fin 20 and each second fin, 30 staggered, evenly setting at interval.Each first fin 20 is along absorber plate 11 is radially long than each second fin 30, the vertical direction height is concordant.The medial extremity of first fin 20 than the medial extremity of second fin 30 more near connecting portion 40.The outboard end of first, second fin 20,30 exceeds absorber plate 11 external margins of endothermic section 10 and links to each other with the inner surface of annular sidewall 50.
Please consult Fig. 2 once more, described drive circuit die set 800 comprises a polygon circuit plate 802 and is arranged at some electronic components 804 of these circuit board 802 tops.Described drive circuit die set 800 is contained in the connecting portion 40 of radiator 100, is used to drive the brightness of light emitting diode module 700 and control led lamp.
Described lamp holder 900 is installed on the top of radiator 100, and it comprises that a connecting portion 902 cylindraceous reaches from this outward extending circular cover 904 in connecting portion 902 bottoms.The periphery of this cover plate 904 has evenly outwards protruded out four lugs 906.The middle part of each lug 906 is provided with an installing hole 908, and corresponding Luo hole 42 is corresponding on the connecting portion 40 of this installing hole 908 and radiator 100.Screw passes the installing hole 908 of cover plate 904 and screws togather with Luo hole 42 on the connecting portion 40, and lamp holder 900 is fixed on the radiator 100.
See also Fig. 5, during use, after the light emitting diode energising, light emitting diode produces light, plays the effect of illumination; Meanwhile, the heat that light emitting diode produces is absorbed and conducts to rapidly first, second fin 20,30 of the side of being fixed thereon by the absorber plate 11 of endothermic section 10, goes thereby heat is dispersed in the external environment condition.At this moment, the cold air that is positioned at the gas channel 62 of annular region 60 rises and leaves because of heat absorption expand into the less hot-air of density; Because leaving of hot-air causes radiator 100 tops and below to produce draught head, mends gas channel 62 thereby the cold air that is positioned at radiator 100 belows is risen; This part cold air passes the gas channel 62 on the annular region 60 and the heat that absorbs on the radiator 100 is transformed into hot-air once again afterwards, thereby realizes cross-ventilation constantly, constantly takes away the heat of led lamp.So, light emitting diode can work in the normal temperature range, can guarantee the illuminating effect of light fixture and prolong its service life.
Claims (9)
1. led lamp, comprise that a light emitting diode module, is in order to be sticked and to cool off the radiator of described light emitting diode module, described radiator comprises the endothermic section that contacts with light emitting diode module, it is characterized in that: the upper surface of described endothermic section is equipped with some fin, and a sidewall connects the outboard end of described fin; The outboard end of described fin exceeds the external margin of endothermic section, and surrounds some gas channels that are communicated with up and down jointly by endothermic section, sidewall and two adjacent fin.
2. led lamp as claimed in claim 1 is characterized in that: form a ring-shaped continuous zone between the outside of described inside surface of side wall and endothermic section, described gas channel is arranged in the described zone.
3. led lamp as claimed in claim 1, it is characterized in that: described fin comprises some first fin and second fin that extend towards the radiator center from sidewall, and staggered, the even setting at interval of described first and second fin and described each first fin are radially than each second heat radiation length of a film.
4. as each described led lamp in the claim 1 to 3, it is characterized in that: described sidewall is horn-like, and the ora terminalis diameter is big down for ora terminalis diameter on it.
5. led lamp as claimed in claim 4 is characterized in that: the top of described sidewall and the edge of bottom respectively with the edge coplane of the top and the bottom of first, second fin.
6. led lamp as claimed in claim 1 is characterized in that: described endothermic section is in the form of annular discs, and it comprises a circular absorber plate and from the peripheral ring wall that extends downwards of described absorber plate, described light emitting diode module is installed in the basal surface of absorber plate.
7. led lamp as claimed in claim 6 is characterized in that: described radiator further comprises one from the absorber plate of endothermic section upwardly extending one cylindric connecting portion, and described fin radially distributes around described connecting portion.
8. led lamp as claimed in claim 7 is characterized in that: the one drive circuit module is contained in the described connecting portion, and a lamp holder is installed on the connecting portion top.
9. led lamp as claimed in claim 8 is characterized in that: a lampshade places endothermic section below, and is tightly connected with the ring wall of endothermic section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100767668A CN101377290B (en) | 2007-08-31 | 2007-08-31 | LED lamp with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100767668A CN101377290B (en) | 2007-08-31 | 2007-08-31 | LED lamp with heat radiation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101377290A CN101377290A (en) | 2009-03-04 |
| CN101377290B true CN101377290B (en) | 2011-08-31 |
Family
ID=40420955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100767668A Active CN101377290B (en) | 2007-08-31 | 2007-08-31 | LED lamp with heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101377290B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076219A1 (en) * | 2009-12-21 | 2011-06-30 | Martin Professional A/S | Cooling module for multiple light source projecting device |
| CN101858520B (en) * | 2010-06-01 | 2011-12-14 | 深圳市兴皓地电子有限公司 | LED light source |
| DE102011008613B4 (en) * | 2011-01-14 | 2016-10-20 | Osram Gmbh | lighting device |
| CN104728673A (en) * | 2015-03-03 | 2015-06-24 | 善研光电科技（上海）有限公司 | Tube lamp with cooler |
| CN106705001A (en) * | 2017-03-01 | 2017-05-24 | 深圳盈特创智能科技有限公司 | LED lamp radiator and LED lamp |
| CN208204930U (en) * | 2018-06-22 | 2018-12-07 | 苏州欧普照明有限公司 | A kind of shell and lighting device |
| CN108980703B (en) * | 2018-08-13 | 2024-04-19 | 广东汉通光电科技有限公司 | Industrial and mining lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532362Y (en) * | 2002-01-22 | 2003-01-22 | 林锡煌 | LCD lamp |
| CN2783126Y (en) * | 2005-01-28 | 2006-05-24 | 林光增 | Radiation structure for high power LED lamp set |
| CN200940818Y (en) * | 2006-06-14 | 2007-08-29 | 协禧电机股份有限公司 | LEd lamp with high heat radiation property |
-
2007
- 2007-08-31 CN CN2007100767668A patent/CN101377290B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532362Y (en) * | 2002-01-22 | 2003-01-22 | 林锡煌 | LCD lamp |
| CN2783126Y (en) * | 2005-01-28 | 2006-05-24 | 林光增 | Radiation structure for high power LED lamp set |
| CN200940818Y (en) * | 2006-06-14 | 2007-08-29 | 协禧电机股份有限公司 | LEd lamp with high heat radiation property |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101377290A (en) | 2009-03-04 |
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Owner name: CHAMP TECH OPTICAL (FOSHAN) CORPORATION Free format text: FORMER OWNER: FUHUAI (SHENZHENG) PRECISION INDUSTRY CO., LTD. Effective date: 20130322 |
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Free format text: CORRECT: ADDRESS; FROM: 518109 SHENZHEN, GUANGDONG PROVINCE TO: 528051 FOSHAN, GUANGDONG PROVINCE |
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Effective date of registration: 20130322 Address after: 528051, Huabao North Road, Chengxi Industrial Zone, Chancheng District, Guangdong, Foshan, 35 Patentee after: Quanyida Technology (Foshan) Co., Ltd. Patentee after: Foxconn Precision Industry Co., Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Patentee before: Fuhuai (Shenzheng) Precision Industry Co., Ltd. Patentee before: Foxconn Precision Industry Co., Ltd. |
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Effective date of registration: 20170511 Address after: 528051, Huabao North Road, Chengxi Industrial Zone, Chancheng District, Guangdong, Foshan, 35 Patentee after: Quanyida Technology (Foshan) Co., Ltd. Address before: 528051, Huabao North Road, Chengxi Industrial Zone, Chancheng District, Guangdong, Foshan, 35 Co-patentee before: Foxconn Precision Industry Co., Ltd. Patentee before: Quanyida Technology (Foshan) Co., Ltd. |
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Effective date of registration: 20180330 Address after: 030006 East Street 8, Taiyuan economic and Technological Development Zone, Shanxi Province, room 327 Patentee after: SHANXI ROAD & BRIDGE GROUP TRAFFIC ELECTROMECHANICAL ENGINEERING CO., LTD. Address before: 528051, Huabao North Road, Chengxi Industrial Zone, Chancheng District, Guangdong, Foshan, 35 Patentee before: Quanyida Technology (Foshan) Co., Ltd. |
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