CN202972674U - Direct-welding type light-emitting diode (LED) down light - Google Patents
Direct-welding type light-emitting diode (LED) down light Download PDFInfo
- Publication number
- CN202972674U CN202972674U CN2012206884619U CN201220688461U CN202972674U CN 202972674 U CN202972674 U CN 202972674U CN 2012206884619 U CN2012206884619 U CN 2012206884619U CN 201220688461 U CN201220688461 U CN 201220688461U CN 202972674 U CN202972674 U CN 202972674U
- Authority
- CN
- China
- Prior art keywords
- led
- pcb board
- light
- heat dissipating
- pcb
- 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.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The utility model discloses a direct-welding type light-emitting diode (LED) down light. The direct-welding type LED down light comprises an LED light bead, a printed circuit board (PCB) and a heat dissipating body. The LED light bead is fixed on one surface of the PCB, and a first soldering paste layer is arranged on the other surface of the PCB. The heat dissipating body is provided with a nickel plate. The PCB is welded with the surface, provided with the nickel plate, of the heat dissipating body through the first soldering paste layer. The heat dissipating body is a disc-shaped light housing with a cavity. The PCB and the LED light bead are arranged on the bottom of the cavity. According to the direct-welding type LED down light, the PCB and the heat dissipating body having heat dissipating effect are welded together, thermal resistance is reduced, heat dissipating speed is improved, light failure of the LED light bead is reduced, service life of LED lamps is prolonged, whole structures of the LED lamps are further optimized, and products structures of the LED lamps are minimized. By displaying of test data, service life of the LED lamps by adopting the direct-welding type LED down light can be more than 10 years.
Description
Technical field
The utility model relates to a kind of LED light fixture, more particularly refers to a kind of directly welded LED Down lamp.
Background technology
In prior art, at the LED light trade, its heat radiation is a technical barrier.So far, each large LED light fixture manufacturing firm does not all have better way to solve this heat dissipation problem.The radiator structure that existing employing aluminium base and thermal grease are bonding causes the heat radiation temperature difference between LED, aluminium base and aluminium base (casing of street lamp) larger, and the LED junction temperature is higher.More than 70 ℃ the time, LED lamp pearl will be subject to badly damaged, causes light decay, affects the life-span of whole LED light fixture when the LED junction temperature.
At present, adopt aluminium base (pcb board a kind of) to be applied on LED, its radiating effect is not good enough.Particularly need to arrange one deck heat radiation adhesive between aluminium base and aluminum alloy casing and be bonded together, thermal resistance is too large.After the LED heat conducted to aluminium base, the heat of aluminium base just can be directly transferred on the casing of street lamp body by thermal paste, caused LED and skin temperature higher.And the junction temperature of LED lamp pearl or LED module is during greater than 75 ℃, and the life-span of LED can shorten greatly.In addition, thermal grease can be aging through long-term the use, can not reach radiating effect and easily cause contact insufficient, and the inhomogeneous local temperature that also can make lamp of dispelling the heat is too high and affect the life-span.
Therefore, be necessary to develop a kind of more direct radiator structure, to solve the heat dissipation problem of LED light fixture.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, and a kind of directly welded LED Down lamp is provided.
For achieving the above object, the utility model is by the following technical solutions:
Directly welded LED Down lamp, comprise LED lamp pearl, pcb board and radiator, the one side of described pcb board is fixed with described LED lamp pearl, another side is provided with the first solder(ing) paste layer, described radiator is provided with nickel coating, the one side welding that described pcb board has nickel coating by the first solder(ing) paste layer of being provided with and radiator; Described radiator is the disc lamp housing that is provided with cavity, and the bottom of cavity is provided with aforesaid pcb board and LED lamp pearl.
Its further technical scheme is: the sidewall of described cavity is taper shape, and is provided with reflector layer; The front end of described disc lamp housing is provided with cover; The centre of described cover is provided with LGP.
Its further technical scheme is: described pcb board is metal pcb board or bakelite pcb board.
Its further technical scheme is: described metal pcb board is to cover copper pcb board, full copper pcb board or aluminium pcb board.
Its further technical scheme is: described LED lamp pearl is several; Described pcb board also is provided be used to the second solder(ing) paste layer that is welded and fixed LED lamp pearl.
The utility model beneficial effect compared with prior art is: the utility model directly welded LED Down lamp, adopted the radiator that pcb board is directly had a thermolysis to weld together, thermal resistance reduces, in advance radiating rate, reduce the light decay of LED lamp pearl, improve the service life of LED light fixture.The overall structure of LED light fixture of having gone forward side by side one-step optimization is more taken advantage of in miniaturization its product structure.Data show after tested, adopt the utility model LED Down lamp, and can arrive more than 10 years its service life.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Description of drawings
Fig. 1 is the solid blast structure chart of the utility model directly welded LED Down lamp specific embodiment.
Description of drawings
The specific embodiment
In order to more fully understand technology contents of the present utility model, below in conjunction with specific embodiment, the technical solution of the utility model is further introduced and explanation, but be not limited to this.
As shown in Figure 1, the utility model directly welded LED Down lamp, comprise non-isolated power supply (not shown), reach the LED lamp pearl 32 that electrically connects with non-isolated power supply, LED lamp pearl 32 is fixed on bakelite pcb board 33, and the one side of bakelite pcb board 33 is provided with for electrically connecting the second solder(ing) paste layer 30(of LED lamp pearl 32 with non-isolated power supply and plays simultaneously the effect that is fixedly connected); The another side of bakelite pcb board 33 connects with the radiator that is provided with (scribble one deck nickel coating on radiator, be used for soldering) welded type, is provided with the first solder(ing) paste layer 35 between bakelite pcb board 33 and radiator; Radiator is the disc lamp housing 34 that is provided with cavity 341, and the bottom of cavity 341 is provided with aforesaid bakelite pcb board 33 and LED lamp pearl 32; The sidewall of cavity 341 is conical, and is provided with reflector layer 342 (can be made of the reflective sheeting material); The front end of disc lamp housing 34 is provided with cover 36; The centre of cover 36 is provided with LGP 37.
In other embodiment, power supply can be also isolated power supply, and pcb board can be also the metal pcb board, such as covering copper pcb board, full copper pcb board or aluminium pcb board.
In process, the first solder(ing) paste layer and the second solder(ing) paste layer can heat welding simultaneously, also can gradation heat welding.
In sum, the utility model directly welded LED Down lamp has adopted the radiator that pcb board is directly had a thermolysis to weld together, and thermal resistance reduces, and radiating rate in advance reduces the light decay of LED lamp pearl, the service life of improving the LED light fixture.The overall structure of LED light fixture of having gone forward side by side one-step optimization is more taken advantage of in miniaturization its product structure.Data show after tested, adopt LED Down lamp of the present utility model, and can arrive more than 10 years its service life.
Above-mentionedly only further illustrate technology contents of the present utility model with embodiment; so that the reader is more readily understood; but do not represent that embodiment of the present utility model only limits to this, any technology of doing according to the utility model is extended or recreation, all is subjected to protection of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (5)
1. directly welded LED Down lamp, it is characterized in that comprising LED lamp pearl, pcb board and radiator, the one side of described pcb board is fixed with described LED lamp pearl, another side is provided with the first solder(ing) paste layer, described radiator is provided with nickel coating, the one side welding that described pcb board has nickel coating by the first solder(ing) paste layer of being provided with and radiator; Described radiator is the disc lamp housing that is provided with cavity, and the bottom of cavity is provided with aforesaid pcb board and LED lamp pearl.
2. directly welded LED Down lamp according to claim 1, is characterized in that the sidewall of described cavity for conical, and be provided with reflector layer; The front end of described disc lamp housing is provided with cover; The centre of described cover is provided with LGP.
3. directly welded LED Down lamp according to claim 1, is characterized in that described pcb board is metal pcb board or bakelite pcb board.
4. directly welded LED Down lamp according to claim 3, is characterized in that described metal pcb board is to cover copper pcb board, full copper pcb board or aluminium pcb board.
5. directly welded LED Down lamp according to claim 1, is characterized in that described LED lamp pearl is several; Described pcb board also is provided be used to the second solder(ing) paste layer that is welded and fixed LED lamp pearl.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206884619U CN202972674U (en) | 2012-12-13 | 2012-12-13 | Direct-welding type light-emitting diode (LED) down light |
| PCT/CN2013/071431 WO2014089931A1 (en) | 2012-12-13 | 2013-02-06 | Direct-welding type led down lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206884619U CN202972674U (en) | 2012-12-13 | 2012-12-13 | Direct-welding type light-emitting diode (LED) down light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972674U true CN202972674U (en) | 2013-06-05 |
Family
ID=48513746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206884619U Expired - Fee Related CN202972674U (en) | 2012-12-13 | 2012-12-13 | Direct-welding type light-emitting diode (LED) down light |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202972674U (en) |
| WO (1) | WO2014089931A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089933A1 (en) * | 2012-12-13 | 2014-06-19 | Lin Peilin | Led lighting apparatus and led lamp with non-isolated power supply |
| CN105221980A (en) * | 2014-06-27 | 2016-01-06 | 安徽兆利光电科技有限公司 | A kind of heat dissipation LED bulkhead lamp capable |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2918153B3 (en) * | 2007-06-29 | 2009-05-22 | Shiun Tsai Tzung | MULTI-LED LAMP HAVING COOLING BODY |
| CN201507806U (en) * | 2009-07-14 | 2010-06-16 | 上海彩煌光电科技有限公司 | LED luminaire with high heat radiation performance |
| CN101881393A (en) * | 2010-07-06 | 2010-11-10 | 中国计量学院 | LED lamp structure capable of conducting heat by using metal base plate and metal solder |
| CN201909197U (en) * | 2010-11-05 | 2011-07-27 | 南京华鼎電子有限公司 | Heat-dissipating device for large-power LED lamp |
| CN202253026U (en) * | 2011-09-21 | 2012-05-30 | 中山市冠华照明灯饰有限公司 | Light-emitting diode (LED) lighting lamp |
| CN102537728A (en) * | 2011-12-16 | 2012-07-04 | 广东朗视光电技术有限公司 | Light-emitting diode lamp of direct-welding fixing aluminum-based plate |
-
2012
- 2012-12-13 CN CN2012206884619U patent/CN202972674U/en not_active Expired - Fee Related
-
2013
- 2013-02-06 WO PCT/CN2013/071431 patent/WO2014089931A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089933A1 (en) * | 2012-12-13 | 2014-06-19 | Lin Peilin | Led lighting apparatus and led lamp with non-isolated power supply |
| CN105221980A (en) * | 2014-06-27 | 2016-01-06 | 安徽兆利光电科技有限公司 | A kind of heat dissipation LED bulkhead lamp capable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014089931A1 (en) | 2014-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130605 Termination date: 20191213 |