CN201636635U - Large-power LED lamp - Google Patents
Large-power LED lamp Download PDFInfo
- Publication number
- CN201636635U CN201636635U CN2010201758428U CN201020175842U CN201636635U CN 201636635 U CN201636635 U CN 201636635U CN 2010201758428 U CN2010201758428 U CN 2010201758428U CN 201020175842 U CN201020175842 U CN 201020175842U CN 201636635 U CN201636635 U CN 201636635U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- led unit
- bearing seat
- load bearing
- heat
- 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
Links
- 239000007769 metal material Substances 0.000 claims description 7
- 238000005476 soldering Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 3
- 238000004080 punching Methods 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides a large-power LED lamp, comprising circuit boards, an LED unit and a bearing seat, wherein the circuit board is provided with punching holes; the circuit boards arranged between the punching holes are nonlinearly connected with one another; the LED unit is electrically connected with the circuit board; and the LED unit is contacted and connected with the bearing seat. The bottom of the circuit board is provided with a welding disc; the upper part of the LED unit is provided with a positive and negative connecting pole; the bottom of the LED unit is provided with a heat-conduction connecting part; the positive connecting pole and the negative connecting pole of the LED unit are electrically connected with the welding disc of the circuit board; the heat-conduction connecting part on the bottom of the LED unit is connected with the bearing seat; and a light outlet part of the LED unit is arranged in the punching holes arranged on the circuit board. In the utility model, the large-power LED lamp adopts the structure and the reflow soldering mode can be used for machining so that the machining time of the luminaire can be shortened; furthermore, as the nonlinear circuit board arrangement structure is adopted so that the phenomena of thrown solder and rosin joint due to different thermal expansion coefficients of bearing seats and circuit board are avoided during the machining and manufacturing process of the LED unit, the finished product rate of the luminaire is greatly improved, and the service life is greatly prolonged.
Description
Technical field
The utility model relates to a kind of lighting, particularly relates to a kind of high-powered LED lamp.
Background technology
Along with the user demand of joint carbon emission reduction and energy conservation, the advantage that the high efficiency of LED and low environment pollute makes LED will become the new light sources that possesses alternative conventional fluorescent of 21 century as the use of light source.But, because LED adopts the electronics of semi-conductive PN junction and the mode of hole generation photon to realize illumination, and LED in actual applications, only can convert about 15% electric energy to luminous energy, other energy all gives off in the mode of heat, so must cause the light fixture heat to improve, so how to dispel the heat becomes the key that can the LED light fixture realize that industrialization and large-power lamp are made.
Existing LED light fixture substitutes high-power traditional high-power illumination light fixture in order to realize the LED light fixture, and the great power LED luminescence unit is used on this type of light fixture.In order to dispel the heat, LED unit seat is located on the metal pedestal, simultaneously, the board sleeve that monoblock is offered perforate is located on the LED unit, metal pedestal, LED unit and circuit board are welded through the Reflow Soldering mode together, LED unit and circuit board electrically connect, and metal pedestal is welded in the LED unit bottom to realize the heat conduction.
Yet, though owing to adopt the Reflow Soldering mode can improve the speed of production and processing, but because circuit board and metal pedestal have different coefficient of heat transfers, so in temperature difference through the Reflow Soldering front and back, the difference of expanding with heat and contract with cold that causes each parts makes LED unit displacement and causes sealing-off between itself and the circuit board.
As shown in Figure 1, a kind of traditional LED lamp includes heat radiating metal seat 1, LED unit 2 and is used to be electrically connected the circuit board 3 of a plurality of LED unit.LED luminescence unit 2 upwards is electrically connected with the pad of circuit board 3 bottoms, and LED unit 2 is close to metal pedestal 1 downwards and is connected the heat that produces with 2 work of LED unit the time and radiate by metal pedestal 1, with the operating temperature of reduction LED unit 2.With metal pedestal 1 usefulness fine copper realize, circuit board 3 usefulness FR-4 realize further specifying, the thermal coefficient of expansion of circuit board 3 is 9.2 * 10
-6K
-1, and the thermal coefficient of expansion of fine copper is 1.7 * 10
-6K
-1When circuit board 3 is of a size of 33.5mm * 33.5mm * 1mm, environment temperature is 20 ℃, the Reflow Soldering welding temperature is 250 ℃, then the lateral expansion amount of this circuit board is 0.07mm, the thermal expansion amount of copper is ignored, then the LED lamp returns back to environment temperature from the welding temperature of Reflow Soldering after welding, and then the pad on LED unit and the circuit board is subjected to recovery stress and rosin joint or sealing-off.So make light fixture to light or to make that the life-span appears in light fixture in actual applications extremely short owing to rosin joint.
The utility model content
The purpose of this utility model is the defective that exists at above-mentioned prior art, and a kind of high-powered LED lamp is provided, and this LED lamp comprises circuit board, LED unit and load bearing seat.Wherein, offer perforation on the circuit board, the circuit board between the perforation is arranged to non-rectilinear and is connected, and load bearing seat is a metal material, the LED unit is electrically connected with circuit board, and the contact of LED unit and load bearing seat is connected the heat that produces with the LED cell operation time and conducts to load bearing seat.The circuit board bottom is provided with welded disc, top, LED unit is provided with the positive and negative connection utmost point, the LED unit bottom is provided with heat-conductive connection part, the positive and negative connection utmost point of LED unit and the welded disc of circuit board electrically connect, the heat-conductive connection part of LED unit bottom is connected with the load bearing seat of being made by metal material that is used to dispel the heat, and the light out part branch of LED unit is located in the perforation of offering on the circuit board.Circuit board between the adjacent perforated becomes S shape or Z shape.Offer locating slot on the circuit board, load bearing seat upwards protrudes out and is formed with fixed leg, and this fixed leg is arranged in the locating slot.Load bearing seat has upwards protruded out fixedly projection, and LED unit seat is located at fixedly on the projection.Circuit board one side is provided with and is used for the bottom-up cable-through hole that passes of lead, and the circuit board upper surface respectively is provided with a welded disc in the cable-through hole both sides, and this welded disc is used for being electrically connected with lead, and lead conducts to the LED unit with electric energy through circuit board.
For solving the problem that prior art exists, provide another kind of high-powered LED lamp based on same inventive concept.This LED lamp comprises circuit board, LED unit and load bearing seat, the circuit board upper surface is provided with welded disc, the LED unit bottom is provided with the positive and negative connection utmost point and heat-conductive connection part, the positive and negative connection utmost point is positioned at the both sides of heat-conductive connection part, the positive and negative connection utmost point of LED unit and the welded disc of circuit board electrically connect, the heat-conductive connection part of LED unit bottom is connected with the load bearing seat of being made by metal material that is used to dispel the heat, the light out part branch of LED unit is located in the perforation of offering on the circuit board, circuit board between the adjacent perforated is S shape or Z shape, offer locating slot on the circuit board, load bearing seat upwards protrudes out and is formed with fixed leg, and this fixed leg is arranged in the locating slot.Load bearing seat has upwards protruded out projection, and projection passes the perforation that is provided with on the circuit board and is connected to the heat-conductive connection part of LED unit.Circuit board one side is provided with and is used for the bottom-up cable-through hole that passes of lead, and the circuit board upper surface respectively is provided with a welded disc in the cable-through hole both sides, and this welded disc is used for being electrically connected with lead, and lead conducts to the LED unit with electric energy through circuit board.
As mentioned above, the utility model high-powered LED lamp adopts structure like this can use the Reflow Soldering mode to process, make shorten the process time of light fixture, and owing to adopt non-directional circuit board that structure is set, make sealing-off and the rosin joint that the LED unit can not cause owing to the circuit board thermal expansion factor different with load bearing seat in processing and manufacturing, the yield rate and the service life of improving light fixture greatly.
Description of drawings
In Figure of description:
Fig. 1 is the schematic perspective view of traditional LED lamp;
Fig. 2 is the utility model high-powered LED lamp schematic perspective view;
Fig. 3 is the three-dimensional exploded view of the utility model high-powered LED lamp.
The description of reference numerals of each element is as follows among the figure:
Locating slot 12 perforation 14
Welded disc 15 cable-through holes 16
Fixing projection 31 fixed legs 32
The specific embodiment
For describing technology contents of the present utility model, architectural feature, the purpose that is realized and effect in detail, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 2, this high-powered LED lamp 100 comprises circuit board 10, LED unit 20 and load bearing seat 30.This LED unit 20 is arranged between circuit board 10 and the load bearing seat 30, and this LED unit 20 upwards is connected with conductive welding disk that circuit board 10 backs are provided with and is close to load bearing seat 30 and is connected with heat conduction.
See also Fig. 3, this circuit board 10 is roughly rectangular, circuit board 10 1 sides are provided with and are used for the bottom-up cable-through hole that passes 16 of lead, circuit board 10 upper surfaces respectively are provided with a welded disc 15 in cable-through hole 16 both sides, this welded disc 15 is used for being electrically connected with lead, and lead conducts to LED unit 20 with electric energy through circuit board 10.Respectively offer a perforation 14 on four angular ranges of circuit board 10, the light that this perforation 14 is used to allow LED unit 20 send is derived.Offer two parallel short slots 11 between the adjacent perforation 14 in two left and right sides, make that the wiring boards between two perforation 14 are S-shaped.Be symmetrically arranged with two locating slots 12 on the circuit board 10.These 20 upper surface both sides, LED unit are provided with the conductive solder portion of bar shaped, and the bottom of LED unit 20 is the heat-conducting layer that can weld.
In concrete processing and manufacturing, tin cream is brushed in positive and negative the be connected utmost point place of circuit board 10 with LED unit 20, and tin cream is set in the heat conduction and heat radiation portion of 20 bottoms, LED unit and the contact-making surface place of load bearing seat 30, with the one that is provided with tin cream of circuit board 10, LED unit 20 and load bearing seat 30 through the high temperature reflux weldering, and then realize the LED unit 20 and the electrical connection of circuit board 10 reach with load bearing seat 30 between heat conduction be connected.
In the present embodiment, the quantity of this LED unit 20 is 4, and circuit board 10 and load bearing seat 30 are rectangular.In concrete enforcement, this circuit board 10 can be bar shaped, and corresponding load bearing seat 30 is bar shaped.In order to make light fixture integrated, load bearing seat 30 can be provided with forming V-shape or U-shaped, the bottom that load bearing seat 30 is close in LED unit 20 is provided with, circuit board 10 is provided with perforate and is used to be installed with LED unit 20, offering short slot between the perforate connects to realize the elasticity between each perforate, the mode of offering of this short slot is not limited to and S-shaped or Z-shaped mode, Yi Bian can offer single short slot yet.
This improved circuit board, between the perforation of holding the LED unit, the connecting circuit plate that is non-linear shape or S shape that adopts etched mode to be processed into, when expanding with heat and contract with cold, this S portion is because diameter is thinner, and the stress of generation is very little, this understrressing is to promote led chip, and because heat rises and makes the perk of S shape connecting portion, cooling back S dress connecting portion returns to original state, can not produce Influence of Displacement to led chip.
The relation that is provided with of circuit board, LED unit and load bearing seat can be: the LED unit is arranged on the circuit board, load bearing seat raises up than short projection, this projection passes the perforation that is provided with on the circuit board and is connected to the bottom of LED unit, and the circuit board between the perforation is non-linear shape.
In sum, protection domain of the present utility model is not limited to the foregoing description, still all should belong to interest field of the present utility model as for the change of component count described in this specification or the replacement of equivalent elements etc.
Claims (10)
1. high-powered LED lamp, comprise circuit board, LED unit and load bearing seat, it is characterized in that: offer perforation on the circuit board, circuit board between the perforation is arranged to non-rectilinear and is connected, load bearing seat is a metal material, the LED unit is electrically connected with circuit board, and the contact of LED unit and load bearing seat is connected the heat that produces with the LED cell operation time and conducts to load bearing seat.
2. high-powered LED lamp according to claim 1, it is characterized in that: the circuit board bottom is provided with welded disc, top, LED unit is provided with the positive and negative connection utmost point, the LED unit bottom is provided with heat-conductive connection part, the positive and negative connection utmost point of LED unit and the welded disc of circuit board electrically connect, the heat-conductive connection part of LED unit bottom is connected with the load bearing seat of being made by metal material that is used to dispel the heat, and the light out part branch of LED unit is located in the perforation of offering on the circuit board.
3. high-powered LED lamp according to claim 2 is characterized in that: the circuit board between the adjacent perforated becomes S shape or Z shape
4. high-powered LED lamp according to claim 3 is characterized in that: offer locating slot on the circuit board, load bearing seat upwards protrudes out and is formed with fixed leg, and this fixed leg is arranged in the locating slot.
5. high-powered LED lamp according to claim 4 is characterized in that: load bearing seat has upwards protruded out fixedly projection, and LED unit seat is located at fixedly on the projection.
6. according to the high-powered LED lamp of claim described 5, it is characterized in that: circuit board one side is provided with and is used for the bottom-up cable-through hole that passes of lead, the circuit board upper surface respectively is provided with a welded disc in the cable-through hole both sides, this welded disc is used for being electrically connected with lead, and lead conducts to the LED unit with electric energy through circuit board.
7. high-powered LED lamp according to claim 1, it is characterized in that: the circuit board upper surface is provided with welded disc, the LED unit bottom is provided with the positive and negative connection utmost point and heat-conductive connection part, the positive and negative connection utmost point is positioned at the both sides of heat-conductive connection part, the positive and negative connection utmost point of LED unit and the welded disc of circuit board electrically connect, the heat-conductive connection part of LED unit bottom is connected with the load bearing seat of being made by metal material that is used to dispel the heat, the light out part branch of LED unit is located in the perforation of offering on the circuit board, and the circuit board between the adjacent perforated is S shape or Z shape.
8. high-powered LED lamp according to claim 7 is characterized in that: offer locating slot on the circuit board, load bearing seat upwards protrudes out and is formed with fixed leg, and this fixed leg is arranged in the locating slot.
9. high-powered LED lamp according to claim 8 is characterized in that: load bearing seat has upwards protruded out projection, and projection passes the perforation that is provided with on the circuit board and is connected to the heat-conductive connection part of LED unit.
10. according to the high-powered LED lamp of claim described 9, it is characterized in that: circuit board one side is provided with and is used for the bottom-up cable-through hole that passes of lead, the circuit board upper surface respectively is provided with a welded disc in the cable-through hole both sides, this welded disc is used for being electrically connected with lead, and lead conducts to the LED unit with electric energy through circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201758428U CN201636635U (en) | 2010-04-27 | 2010-04-27 | Large-power LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201758428U CN201636635U (en) | 2010-04-27 | 2010-04-27 | Large-power LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636635U true CN201636635U (en) | 2010-11-17 |
Family
ID=43081127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201758428U Expired - Fee Related CN201636635U (en) | 2010-04-27 | 2010-04-27 | Large-power LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235592A (en) * | 2010-04-27 | 2011-11-09 | 林万炯 | High-power LED (light emitting diode) lamp |
| CN102810534A (en) * | 2011-06-03 | 2012-12-05 | 苏州金美家具有限公司 | LED (light emitting diode) module |
-
2010
- 2010-04-27 CN CN2010201758428U patent/CN201636635U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235592A (en) * | 2010-04-27 | 2011-11-09 | 林万炯 | High-power LED (light emitting diode) lamp |
| CN102235592B (en) * | 2010-04-27 | 2013-07-10 | 林万炯 | High-power LED (light emitting diode) lamp |
| CN102810534A (en) * | 2011-06-03 | 2012-12-05 | 苏州金美家具有限公司 | LED (light emitting diode) module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo hi tech Zone Karl Electronic Co., Ltd. Assignor: Lin Wanjiong Contract record no.: 2011330000760 Denomination of utility model: Ultrahigh-power LED light and manufacturing method thereof Granted publication date: 20101117 License type: Exclusive License Record date: 20110620 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Ningbo hi tech Zone Karl Electronic Co., Ltd. Assignor: Lin Wanjiong Contract record no.: 2011330000760 Date of cancellation: 20111102 |
|
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HI. TECH. PARK COIL ELECTRONIC CO., LTD. Free format text: FORMER OWNER: LIN WANJIONG Effective date: 20111208 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111208 Address after: 315103 Zhejiang city of Ningbo province high tech Zone Juxian Road No. 1345 Patentee after: Ningbo hi tech Zone Karl Electronic Co., Ltd. Address before: 315103 Zhejiang city of Ningbo province high tech Zone Juxian Road No. 1345 Patentee before: Lin Wanjiong |
|
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HI. TECH. PARK SELF ELECTRONICS CO., LTD. Free format text: FORMER OWNER: NINGBO HI. TECH. PARK COIL ELECTRONIC CO., LTD. Effective date: 20140731 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140731 Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee after: SELF ELECTRONICS CO.,LTD. Address before: 315103 Zhejiang city of Ningbo province high tech Zone Juxian Road No. 1345 Patentee before: Ningbo hi tech Zone Karl Electronic Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee after: SELF ELECTRONICS CO., LTD. Address before: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee before: SELF ELECTRONICS CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20160427 |