CN203477969U - LED bead heat-dissipating circuit board with reflecting board - Google Patents
LED bead heat-dissipating circuit board with reflecting board Download PDFInfo
- Publication number
- CN203477969U CN203477969U CN201320602085.1U CN201320602085U CN203477969U CN 203477969 U CN203477969 U CN 203477969U CN 201320602085 U CN201320602085 U CN 201320602085U CN 203477969 U CN203477969 U CN 203477969U
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- China
- Prior art keywords
- circuit board
- led lamp
- lamp pearl
- reflector
- board
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- 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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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model relates to an LED bead heat-dissipating circuit board with a reflecting board. The LED bead heat-dissipating circuit board with the reflecting board comprises a circuit board body, LED beads, a line board and an insulating layer. According to the technical scheme, bottom faces of the LED beads are directly connected with the heat-conductive circuit board, a barrier of heat conduction does not exist between the bottom faces of the LED beads and the circuit board, and therefore the heat-conduction effect is improved. Meanwhile, protrusions are higher than the surface of the circuit board so that the illumination angle of the LED beads can be effectively enlarged.
Description
Technical field
The utility model belongs to LED field, specifically refers to LED lighting field, refers to especially a kind of LED lamp pearl cooling circuit board with reflector.
Background technology
From nineteen sixties exploitation so far, its application has expanded many fields to LED.LED is mainly critical piece by Light-Emitting Diode, and it utilizes the unidirectional powered of semiconductor P-N knot and realizes luminous.In photoelectric conversion in LED, have heat generation, and the characteristic of LED is luminous efficiency, along with the rising of temperature, decline.In the prior art, in order to guarantee the efficiency of LED, prevent excess Temperature, all adopt the mode that radiating element dispels the heat that installs additional.By statistics, in LED application, radiating element accounts between the 5%-7% of totle drilling cost.
What the circuit board of existing fixed L ED light pearl all adopted is on planar circuit board, to be printed with two flat coppers or aluminium electrode, and LED chip protrudes from circuit board.The circuit board now using, in order to guarantee certain insulating properties, just has a certain impact aspect heat dispersion.Now also there is technology to propose, at two electrode mid portions, be provided with a groove, LED chip is arranged in groove, by reducing the thickness of circuit board, improve heat dispersion, but this technical scheme has influence on the encapsulation of LED chip, the refraction of light or reflection are exerted an adverse impact.
Now also there is technology to propose to hand over LED lamp pearl to be placed on load bearing seat, by load bearing seat, dispel the heat, and, by adding thermal paste heat conduction to improve radiating effect between LED lamp pearl and load bearing seat.But even if the thermal conductivity of load bearing seat and heat-conducting glue is all higher, but every many one decks also can hinder actual heat-conductive characteristic, the radiating effect of this structure is unsatisfactory, and limited to the raising of radiating effect.
Utility model content
The purpose of this utility model is to provide a kind of circuit board that can improve LED lamp pearl radiating effect, and by the technical program, radiating effect and the processing technology that can not only improve LED lamp pearl are simple.
The utility model is achieved through the following technical solutions:
LED lamp pearl cooling circuit board with reflector, comprises circuit board body, LED lamp pearl, wiring board and insulating barrier; On a surface of described circuit board body, be provided with the projection that at least one center line is parallel to the long limit of circuit board; The both sides of projection are disposed with insulating barrier and wiring board, are provided with in the circuit board reflector or be provided with reflector or reflector layer adjacent with wiring board on insulating barrier; The lower negative pole of LED lamp pearl is the wiring board of connection bump both sides respectively, and the bottom surface of LED lamp pearl fits in protruding surface.
The width of described projection is identical or be slightly less than the width of LED lamp pearl bottom surface.
The thickness of described insulating barrier and wiring board and be less than protruding height.
The width of reflector or reflector layer is less than the width of insulating barrier.
The utility model beneficial effect is compared with the existing technology:
1, by the technical program, the bottom surface of LED lamp pearl circuit board direct and heat conduction joins, and centre does not exist heat conducting obstruction, has improved heat-conducting effect.
2, because projection exceeds the surface of circuit board, can effectively expand the irradiating angle of LED lamp pearl.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A cross sectional representation of Fig. 1.
The specific embodiment
By specific embodiment, describe the technical solution of the utility model in detail below, should be understood that, following embodiment is only exemplary, only can be used for explaining and explanation the technical solution of the utility model, and can not to be interpreted as is the restriction to technical solutions of the utility model.
Shown in accompanying drawing 1 and accompanying drawing 2, in the technical program, the material of the heat-conducting effect that circuit board 2 selections have had is as circuit board body, can select to have resin or the metal material of good heat conductivity herein, in process, directly process projection, in the technical program protrusions, be positioned at a projection of the centre of circuit board body, want in other embodiment, if when lower-powered LED lamp pearl circuit board used may need to arrange two rows or above LED lamp pearl string, corresponding projection can be set as required on circuit board.
In the technical program, wiring board 4 can be used in the conductive material of wiring board for fillet shape copper coin or other, and in order to save the material of wiring board, wiring board is narrower, can meet LED lamp pearl electric current used just passable.
On a surface of circuit board 2, be provided with the projection 3 that at least one center line is parallel to the long limit of circuit board; The both sides of projection 3 are disposed with insulating barrier 4 and wiring board 5, and the both positive and negative polarity of LED lamp pearl 1 is the wiring board 5 of connection bump 3 both sides respectively, and the bottom surface of LED lamp pearl fits in protruding surface.
The width of projection is identical or be slightly less than the width of LED lamp pearl bottom surface.The wire that can guarantee like this LED lamp pearl does not contact with the projection on circuit board, prevents that circuit board is charged.If LED lamp pearl bottom surface is square, the width of projection is less than Chang limit, LED lamp pearl bottom surface; If the bottom surface of LED lamp pearl is circular, the width of projection is less than the diameter of the bottom surface of LED lamp pearl.
The thickness of insulating barrier 4 and wiring board 5 and the height that is less than projection 3, can guarantee that the bottom surface of LED lamp pearl is with protruding surface laminating, raising thermal conductivity like this.
On wiring board 5, be provided with reflector 6 or be provided with reflector or reflector layer adjacent with wiring board on insulating barrier; The width of reflector or reflector layer is less than the width of insulating barrier.When reflector or reflector layer are arranged on wiring board, this reflector or reflector layer do not affect being connected of LED lamp pearl and wiring board.When reflector or reflector layer are arranged on insulating barrier, wiring board is near LED lamp pearl, and reflector or reflector layer are positioned at outside, if when the both sides of wiring board all will connect LED lamp pearl, reflector or reflector layer are arranged at the centre position on wiring board; This spline structure is conducive to increase light reflection or the refraction of LED lamp pearl, improves brightness.In the technical scheme of this patent, reflector or reflector layer can be for aluminizing or aluminium sheet and the existing reflection shield material using.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (4)
1. with the LED lamp pearl cooling circuit board of reflector, be characterised in that altogether: comprise circuit board body, LED lamp pearl, wiring board and insulating barrier; On a surface of described circuit board body, be provided with the projection that at least one center line is parallel to the long limit of circuit board; The both sides of projection are disposed with insulating barrier and wiring board, are provided with in the circuit board reflector or be provided with reflector or reflector layer adjacent with wiring board on insulating barrier; The both positive and negative polarity of LED lamp pearl is the wiring board of connection bump both sides respectively, and the bottom surface of LED lamp pearl fits in protruding surface.
2. the LED lamp pearl cooling circuit board with reflector according to claim 1, is characterised in that altogether: the width of described projection is identical or be slightly less than the width of LED lamp pearl bottom surface.
3. the LED lamp pearl cooling circuit board with reflector according to claim 1, is characterised in that altogether: the thickness of described insulating barrier and wiring board and be less than protruding height.
4. the LED lamp pearl cooling circuit board with reflector according to claim 1, is characterised in that: the width of reflector or reflector layer is less than the width of insulating barrier altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602085.1U CN203477969U (en) | 2013-09-24 | 2013-09-24 | LED bead heat-dissipating circuit board with reflecting board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602085.1U CN203477969U (en) | 2013-09-24 | 2013-09-24 | LED bead heat-dissipating circuit board with reflecting board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477969U true CN203477969U (en) | 2014-03-12 |
Family
ID=50226296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320602085.1U Expired - Fee Related CN203477969U (en) | 2013-09-24 | 2013-09-24 | LED bead heat-dissipating circuit board with reflecting board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477969U (en) |
-
2013
- 2013-09-24 CN CN201320602085.1U patent/CN203477969U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |