CN102635799B - Distributed radiating LED (light emitting diode) lamp bulb - Google Patents
Distributed radiating LED (light emitting diode) lamp bulb Download PDFInfo
- Publication number
- CN102635799B CN102635799B CN201210097461.6A CN201210097461A CN102635799B CN 102635799 B CN102635799 B CN 102635799B CN 201210097461 A CN201210097461 A CN 201210097461A CN 102635799 B CN102635799 B CN 102635799B
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- Prior art keywords
- radiating
- lamp
- heat
- locating surface
- led bulb
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- 238000001816 cooling Methods 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 241000258971 Brachiopoda Species 0.000 abstract 5
- 230000000694 effects Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 230000009466 transformation Effects 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 invention relates to a distributed radiating LED (light emitting diode) lamp bulb which belongs to the technical field of semiconductor lighting and comprises a conductive lamp head inserting port, a lamp shell, and LED chips which are covered in a lamp cover and are connected with the conductive lamp head, wherein one end of the lamp shell is fixedly connected with the lamp head inserting port by an insulating bracket, the other end of the lamp shell is provided with a conductive insulating board and is buckled with the lamp cover, the conductive insulating board is provided with a group of radiation-shaped radial slot holes, radiating blades are inserted in the radial slot holes, one ends of the radiating blades extend into the lamp shell, each radiating blade comprises a positioning surface and a radiating surface, the positioning surfaces are fixed with the conductive insulating board in a fitting way, the radiating surfaces are vertical to the positioning surfaces, an outer ring of the lamp shell is provided with radiating windows which are distributed at intervals and extend axially, each LED chip is arranged between the positioning surfaces of the adjacent radiating blades in a span way, and radiating pins are respectively welded with the adjacent positioning surfaces. After the distributed radiating LED lamp bulb is adopted, under the condition that the original shape and the original volume of the lamp bulb are not changed, as the radiating performance is improved greatly, the power is increased, and use requirements are met.
Description
Technical field
The present invention relates to a kind of LED bulb, especially a kind of distributed cooling LED bulb, belongs to technical field of semiconductor illumination.
Background technology
According to the applicant understood, the core technology of semiconductor lighting is its luminous efficiency and radiator structure.Current existing LED bulb often adopts the integral heat dissipation structure shown in Fig. 1, and wherein plurality of LEDs chip is fixed on heat carrier by heat-conducting glue, then heat carrier is fixed on integrally-built thermal louver housing.When LED power strengthens, in the time of need to improving radiating effect, must realize by the volume and the cooling surface area that strengthen lamp housing, result not only increases light fixture weight and cost, and is usually subject to the restriction of lamp-mounting structure.
Retrieval is found, application number is that 200920317833.5 Chinese utility model discloses a kind of high-power LED bulb, comprise lamp holder, insulating lamp holder, heat radiation body, lampshade, and LED light source assembly, LED light source assembly is fixed between lampshade and heat radiation body, LED light source assembly is comprised of circuit board and the some LED light sources that are fixed on circuit board, LED light source has three at least, LED bulb lamp also comprises isolated alterating and direct current Source drive, isolated alterating and direct current Source drive is arranged in insulating lamp holder or heat radiation body or insulating lamp holder and the common cavity forming of heat radiation body, one end of isolated alterating and direct current Source drive is connected by power line with LED light source, and the other end is connected with AC power, heat radiation body is provided with the via hole for LED light source assembly is installed.This technical scheme is still integral heat sink structure, therefore improves heat dispersion and be still subject to the restriction of light fixture self structure, is difficult to remarkable improvement under the prerequisite that does not increase volume.
Summary of the invention
The object of the invention is to: the problem existing for above-mentioned prior art, a kind of can not increasing under the prerequisite of volume and external surface area proposed, significantly improve the distributed cooling LED bulb of heat dispersion.
In order to achieve the above object, distributed cooling LED bulb of the present invention comprises conduction lamp holder socket, lamp housing, and covers in the LED chip being electrically connected with conduction lamp holder in lampshade; One end of described lamp housing is connected by insulating support and described lamp holder socket, and the other end is settled heat conductive insulating plate, and is fastened and connected with lampshade; On described heat conductive insulating plate, there is one group of radial radially slotted eye, in described radially slotted eye, the radiator shutter of described lamp housing is stretched in plug-in mounting one end, and described radiator shutter is by forming with fit fixing locating surface and the radiating surface vertical with described locating surface of heat conductive insulating plate; The cylindrical of described lamp housing has axially extended radiator window spaced apart; Described LED chip is cross-placed between the locating surface of adjacent radiator shutter, and heat radiation pin welds with adjacent locating surface respectively.
Like this, the heat of each LED chip is when being directly delivered to by locating surface the radiator shutter being separated from each other, also will be delivered on lamp housing by heat conductive insulating plate, therefore not only in the most direct mode, heat is distributed by conduction and radiation mode, and can make full use of effective area, form three-dimensional heat radiating structure.Especially, the lamp housing of paliform not only makes inner radiator shutter exposed in air, and can form the supplemental air flow in similar revolving horse lantern because thermal current rises, thereby not increasing under the prerequisite of light fixture volume, significantly improves radiating efficiency.
The present invention further improves: described radiating surface is by radially facade that radially slotted eye extends and be positioned at the radially circumferential cambered surface of facade outer end and form.So not only good rigidly, and further increased area of dissipation.
The present invention further improves: the quantity of described radiator window is corresponding with the quantity of described radiator shutter, and described circumferential cambered surface is respectively just to radiator window.Like this, the supplemental air flow that lamp housing goes out can more effectively play thermolysis.
Adopt after the present invention, can, in the situation that not changing the original profile of LED bulb, volume, because heat dispersion improves greatly, improve power, meet user demand.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of prior art.
Fig. 2 is the stereo decomposing structural representation of one embodiment of the invention.
Fig. 3 is the mounting structure schematic diagram of LED chip and radiator shutter in Fig. 2.
Fig. 4 is the structural representation that in Fig. 2, radiator shutter is inserted into insulating heat-conductive plate.
The specific embodiment
Embodiment mono-
The distributed cooling LED bulb of the present embodiment as shown in Figure 2,3, 4, has the lamp housing 3 of conduction lamp holder socket 1, approximate truncated cone-shaped, and covers in the LED chip 10 being electrically connected with conduction lamp holder in the lampshade 7 of hemisphere capitiform.The upper end of lamp housing 3 is connected by insulating support 2 and lamp holder socket 1, and the disc heat conductive insulating plate 4 of thermal conductive ceramic material is settled in lower end, and is fastened and connected with lampshade 7.The cylindrical of lamp housing 3 has axially extended radiator window spaced apart, forms paliform.On heat conductive insulating plate 4, there is one group of radial radially slotted eye 4-1(referring to Fig. 4), in each radially slotted eye, the heat dissipation metal blade 5 in lamp housing 3 is stretched in plug-in mounting one end respectively.Radiator shutter 5 consists of the locating surface 5-1 that fits fixing with heat conductive insulating plate 4 and the radiating surface vertical with locating surface 5-1.The radially facade 5-3 that radiating surface is extended by slotted eye radially and be positioned at the radially circumferential cambered surface 5-2 of facade 5-3 outer end and form.Locating surface 5-1 is outer end and circumferentially extends to form " 7 " font of elbow, each LED chip lays respectively at the inner side of elbow of locating surface 5-1, and be cross-placed between the locating surface 5-1 of adjacent radiator shutter, heat radiation pin welds with two adjacent radiator shutter locating surfaces respectively, therefore can directly heat be conducted to the radiator shutter 5 with 3-D solid structure.Embedding heat-conducting glue between locating surface 5-1 and insulating heat-conductive plate 4, therefore, in self-radiating, can also effectively be transmitted to lamp housing 3 by heat by insulating heat-conductive plate 4.By the trim ring 6 and the securing member that are positioned at heat conductive insulating plate 4 centers, each radiator shutter and insulating support 2 can be fixed together.The radiator window quantity of lamp housing 3 is corresponding with the quantity of radiator shutter 5, and the circumferential cambered surface 5-2 of radiator shutter 5 is respectively just to radiator window.
The present embodiment is when promoting the each contact portion heat-sinking capability of LED chip, and the each parts that make full use of in LED bulb dispel the heat, and form a kind of distributed radiator structure of three-dimensional, relies on lamp housing heat radiation no longer completely.The non-enclosed construction of lamp housing, can produce the convection current air that stack effect causes, significantly improve the radiating effect of radiator shutter, and combine closely between ceramic wafer and lamp housing, after-heat can be spread out by lamp housing, further improve radiating effect.Compared with existing Integral heat dissipation structure, the in the situation that of same volume, radiating effect obviously improves.Therefore, the present embodiment can the most direct mode distribute LED chip heat by conduction, convection current and radiation mode, thereby meets the radiating requirements of high-power LED bulb.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. a distributed cooling LED bulb, comprises conduction lamp holder socket, lamp housing, and covers in the LED chip being electrically connected with conduction lamp holder in lampshade; One end of described lamp housing is connected by insulating support and described lamp holder socket, and the other end is settled heat conductive insulating plate, and is fastened and connected with lampshade; On described heat conductive insulating plate, there is one group of radial radially slotted eye, in described radially slotted eye, the radiator shutter of described lamp housing is stretched in plug-in mounting one end, and described radiator shutter is by forming with fit fixing locating surface and the radiating surface vertical with described locating surface of heat conductive insulating plate; The cylindrical of described lamp housing has axially extended radiator window spaced apart; It is characterized in that: described LED chip is cross-placed between the locating surface of adjacent radiator shutter, and heat radiation pin welds with adjacent locating surface respectively.
2. distributed cooling LED bulb according to claim 1, is characterized in that: the radially facade that described radiating surface is extended by slotted eye radially and be positioned at the radially circumferential cambered surface of facade outer end and form.
3. distributed cooling LED bulb according to claim 2, is characterized in that: the quantity of described radiator window is corresponding with the quantity of described radiator shutter, and described circumferential cambered surface is respectively just to radiator window.
4. distributed cooling LED bulb according to claim 3, is characterized in that: described locating surface is outer end and circumferentially extends to form " 7 " font of elbow.
5. distributed cooling LED bulb according to claim 4, is characterized in that: described LED chip is positioned at the inner side of elbow of described locating surface.
6. distributed cooling LED bulb according to claim 5, is characterized in that: embedding heat-conducting glue between described locating surface and insulating heat-conductive plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097461.6A CN102635799B (en) | 2012-04-01 | 2012-04-01 | Distributed radiating LED (light emitting diode) lamp bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097461.6A CN102635799B (en) | 2012-04-01 | 2012-04-01 | Distributed radiating LED (light emitting diode) lamp bulb |
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| Publication Number | Publication Date |
|---|---|
| CN102635799A CN102635799A (en) | 2012-08-15 |
| CN102635799B true CN102635799B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210097461.6A Expired - Fee Related CN102635799B (en) | 2012-04-01 | 2012-04-01 | Distributed radiating LED (light emitting diode) lamp bulb |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881340Y (en) * | 2006-03-03 | 2007-03-21 | 超众科技股份有限公司 | LED lamp and its radiating structure |
| DE202008016231U1 (en) * | 2008-12-08 | 2009-03-05 | Huang, Tsung-Hsien, Yuan Shan | Heat sink module |
| CN201983014U (en) * | 2010-12-31 | 2011-09-21 | 浙江生辉照明有限公司 | Combined type LED lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7663229B2 (en) * | 2006-07-12 | 2010-02-16 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Lighting device |
| US20100103666A1 (en) * | 2008-10-28 | 2010-04-29 | Kun-Jung Chang | Led lamp bulb structure |
| TW201043844A (en) * | 2009-06-01 | 2010-12-16 | Yu-Lin Chu | Heat dissipating structure for LED lamp |
-
2012
- 2012-04-01 CN CN201210097461.6A patent/CN102635799B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881340Y (en) * | 2006-03-03 | 2007-03-21 | 超众科技股份有限公司 | LED lamp and its radiating structure |
| DE202008016231U1 (en) * | 2008-12-08 | 2009-03-05 | Huang, Tsung-Hsien, Yuan Shan | Heat sink module |
| CN201983014U (en) * | 2010-12-31 | 2011-09-21 | 浙江生辉照明有限公司 | Combined type LED lamp |
Non-Patent Citations (2)
| Title |
|---|
| 分布式大功率LED路灯散热器的结构设计;刘红等;《轻工机械》;20110831;第29卷(第4期);第97-100页 * |
| 刘红等.分布式大功率LED路灯散热器的结构设计.《轻工机械》.2011,第29卷(第4期),第97-100页. |
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| CN102635799A (en) | 2012-08-15 |
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Owner name: CHANGZHOU HUAJIA VEHICLE INDUSTRY CO., LTD. Free format text: FORMER OWNER: WU JIANHUA Effective date: 20140320 Free format text: FORMER OWNER: TANG CENGHUI ZHANG JIANGONG Effective date: 20140320 |
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Inventor after: He Chaoxu Inventor after: Wu Jianhua Inventor after: Tang Zenghui Inventor after: Zhang Jiangong Inventor after: Wu Jie Inventor before: Wu Jianhua Inventor before: Tang Zenghui Inventor before: Zhang Jiangong |
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Free format text: CORRECT: INVENTOR; FROM: WU JIANHUA TANG CENGHUI ZHANG JIANGONG TO: HE CHAOXU WU JIANHUA TANG CENGHUI ZHANG JIANGONG WU JIE |
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Effective date of registration: 20140320 Address after: No. 57, Tongjiang East Road, Xiaohe Town, Xinbei District, Jiangsu, Changzhou Applicant after: CHANGZHOU HUAJIA VECHICLE INDUSTRY CO., LTD. Address before: 213614, information industry park, Changzhou science and Education City, No. 801 middle Wu Road, Jiangsu, Changzhou, 1 Applicant before: Wu Jianhua Applicant before: Tang Zenghui Applicant before: Zhang Jiangong |
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