CN202469553U - LED two-dimensional array light source having flexible circuit board - Google Patents
LED two-dimensional array light source having flexible circuit board Download PDFInfo
- Publication number
- CN202469553U CN202469553U CN2011205302457U CN201120530245U CN202469553U CN 202469553 U CN202469553 U CN 202469553U CN 2011205302457 U CN2011205302457 U CN 2011205302457U CN 201120530245 U CN201120530245 U CN 201120530245U CN 202469553 U CN202469553 U CN 202469553U
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- circuit board
- flexible circuit
- led
- light source
- dimensional array
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Abstract
The utility model discloses an LED two-dimensional array light source having a flexible circuit board. The LED two-dimensional array light source having the flexible circuit board includes a plurality of LED chips or packaged LED beads. The LED two-dimensional array light source having the flexible circuit board is characterized in that the LED two-dimensional array light source having the flexible circuit board also includes a flexible circuit board provided with conducting material having a conducting pattern. A solder mask is printed on the flexible circuit board, thereby forming a plurality of combination areas. The LED chips or the LED beads are pasted on the combination areas directly and are connected with each other through the conducting pattern. Array-type through holes are arranged in the flexible circuit board. The utility model provides the LED two-dimensional array light source having the flexible circuit board and solves problems of a type of a curved surface LED array light source. At the same time, the LED light source heat dissipating effect is improved by adopting the flexible circuit board and array-type through hole technology. The heat dissipating capability and the light emitting efficiency of the emitting light source are improved substantially. The service lifetime is prolonged. The LED two-dimensional array light source having the flexible circuit board is suitable for automatic production. Thus, the LED two-dimensional array light source having the flexible circuit board can be provided to the consumers for using.
Description
Technical field
The utility model belongs to the led light source technical field, particularly relates to a kind of flexible circuit board LED two-dimensional array light source.
Background technology
Along with development of science and technology, the LED lamp relies on the high and low power consumption of luminous efficiency, does not need advantages such as high pressure, security height, is applied in various lighting fields widely.The life-span of led light source and the operating temperature of node have directly gets in touch; At present the LED lamp has only about 50% electric energy to convert luminous energy in the course of the work; Remaining electric energy nearly all changes into heat energy, the temperature of LED lamp is raise, and 10 degrees centigrade of its reliabilities of the every increase of temperature will reduce half.Heat radiation is a big problem.Bad meeting directly causes LED performance and stability to reduce if dispel the heat, bad can the generation life-span that serious light decay influences lamp of dispelling the heat simultaneously.
For example I229948 novel patent case in Taiwan discloses a kind of crystal-coated light-emitting diodes array of packages and encapsulation unit thereof, mainly discloses a light-emitting diode chip for backlight unit and is arranged on the ceramic substrate, and connect the metal connecting line layer on this ceramic substrate.This porcelain substrate is to utilize heat-conducting glue to be arranged in the depression of metal body of heat sink effect together.Heat sinkly finally be connected, heat be dispersed in the surrounding air through convection current go with fin.Under this way; Because this light-emitting diode chip for backlight unit and metal connecting line layer; And also two-layer between this metal body across this thicker ceramic substrate and this heat-conducting glue etc., therefore, the heat on this light-emitting diode chip for backlight unit and the metal connecting line layer; Be can't be transmitted to soon this heat sink on, and then be delivered to and dispel the heat on the radiator.From led chip through thicker substrate, heat-conducting glue, heat sink to radiator, thermal resistance is very big, so radiating effect is bad.
The utility model content
Bad in order to solve in the prior art led light source radiating effect; Performance is not high; The problem that service life is short, the utility model provides a kind of flexible circuit board LED two-dimensional array light source, makes the heat-sinking capability of illuminating source and light extraction efficiency significantly improve; Be fit to automated production simultaneously more, consumption is popular to be used to provide.
In order to address the above problem, the technical scheme that the utility model is taked is:
A kind of flexible circuit board LED two-dimensional array light source; Comprise several led chips or packaged LED lamp pearl; It is characterized in that: also comprise flexible circuit board; Printing perhaps is laminated with the conductive material that has conductive pattern on flexible circuit board, and the printing solder mask forms some lands on flexible circuit board, and said led chip or packaged LED lamp pearl are installed on the land; And linking conducting each other through conductive pattern, no regions of conductive material offers the array through hole on flexible circuit board.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source, it is characterized in that: said flexible circuit board heatproof is more than 250 degrees centigrade, and thickness is below 1 millimeter; Tensile strength is more than 1MPa; Make to reach 2mm and do not rupture being bent to the curvature minimum that fine fisssure does not produce fold.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source is characterized in that: said flexible circuit board adopts transparent polyester class film or other flexible insulating material.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source is characterized in that: said conductive material adopts copper, aluminium, gold, silver, nickel, zinc, iron, graphite material, or adopts transparent conductive oxide.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source is characterized in that: said transparent conductive oxide adopts one or both combinations in tin indium oxide, zinc oxide, other P type transparent conductive oxide film.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source, it is characterized in that: said flexible circuit board thickness is between 0.08mm-0.2mm.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source, it is characterized in that: said led array light source can bend to curved surface light source.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source, it is characterized in that: said curved surface light source is an axial symmetry macaroni light source, comprises cylinder and ellipsoid.
Aforesaid a kind of flexible circuit board LED two-dimensional array light source is characterized in that: apply fluorescent material on the said led chip, perhaps led chip is provided with and covers the transparent dielectric thin film that mixes fluorescent material.
The beneficial effect of the utility model is:
1, the utility model does not have heat sink and radiator, and weight reduction reduces cost, and improves radiating effect, improves light-emitting area
2, compare with traditional LED encapsulated type, this plane or curved face type led light source, the area of dissipation increase is easier to heat radiation; Led chip distribution optimization design simultaneously reduces the caloric value of light source self greatly, has improved the service life of light source.
3, the utility model plane or curved face type led light source.Its advantage is to help fast, High-efficient Production, and automaticity is high, can justifying encapsulate fast, and the reliability of encapsulating products is high, high conformity.
4, the utility model does not adopt thick and heavy aluminium base and the plastic base in the prior art fully; Because the flexible circuit board of the utility model is very thin, the heat of LED lamp is delivered on the flexible base, board at once, then directly through dispelling the heat with cross-ventilation; The LED thermal source and the cross-ventilated passage of heat are the shortest like this; Entire thermal resistance is also minimum, thereby good heat dissipation effect, reduces heat sink simultaneously and component weight and cost radiator.。
5, the utility model is made more small circulation around LED wick or lamp pearl because circuit substrate is that flexible flake section bar matter cooperates via design simultaneously, has improved the heat-sinking capability of led light source.
6, the utility model adopts flat, thin chip justifying structure; Circuit substrate is selected the flexible thin film type material for use; Flexible circuit board LED two-dimensional array light source in use can fold crooked arbitrarily; The practicality that has increased light source design and use has widely increased led light source light extraction efficiency and plasticity, has realized plane and curved surface LED light source.
Description of drawings
Fig. 1 is the structural representation of the utility model flexible circuit board LED two-dimensional array light source.
Fig. 2 is the utility model curved surface light source structural representation.
Fig. 3 is the curved surface light source structural representation that the utility model has transparent medium.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further description.
As shown in Figure 1, a kind of flexible circuit board LED two-dimensional array light source comprises several led chips 1; Flexible circuit board 4 is provided with the conductive material that has conductive pattern 3 on flexible circuit board 4, the printing solder mask forms some lands 5 on flexible circuit board 4; Led chip 1 directly mounts and land 5; And, on flexible circuit board 4, offer array through hole 2 through conductive pattern 3 binding conducting each other, further improve the thermolysis of led array light source.As shown in Figure 2, flexible circuit board 4 can also be crooked, and flexible circuit board LED two-dimensional array light source can be bent to curved surface light source, and curved surface light source is axial symmetry macaroni light source, comprises cylinder and ellipsoid, increased light extraction efficiency like this.As shown in Figure 3, on led chip 1, apply fluorescent material, perhaps led chip is provided with and covers the transparent medium 6 that mixes fluorescent material.The benefit of design has like this: 1, because led chip is real heater, and fluorescent material separates with led chip, help heat radiation.2, the fluorescent material temperature also can reduce with it, improves fluorescent material luminous efficiency 3, fluorescent material away from light emitting source, and light area increases, and helps luminous more even.
Flexible circuit board 4 heatproofs are more than 250 degrees centigrade, and thickness is between 0.08mm-0.2mm, and tensile strength makes to reach 2mm and do not rupture being bent to the curvature minimum that fine fisssure does not produce fold more than 5MPa.
Flexible circuit board 4 should have characteristics such as certain soldering resistance, frivolous, mechanical strength.Flexible circuit board 4 adopts transparent polyester class films, like Merlon (PC), polymethyl methacrylate (PMMA), gather a kind of in the first imido film.
Conductive material adopts the one or more combination in copper, aluminium, silver, gold, nickel, zinc, iron, the graphite material.Wherein the preparation of conductive pattern 3 can obtain through methods such as printing, printing, electrostatic sprayings.The printing solder mask forms accurate in size chips incorporate district 5 on flexible circuit board 4.
Conductive material adopts a kind of in the thin-film materials such as Copper Foil, aluminium foil, silver foil.Wherein the preparation of conductive pattern 3 can directly form the circuit substrate with conductive pattern through technology such as laser engraving, etching, punching presses, and back printing solder mask on flexible circuit board 4 forms accurate in size chips incorporate district 5.
Conductive material also can adopt tin indium oxide, one or both combinations of the medium transparent conductive oxide of zinc oxide.
On the land 5 that led chip 1 can be fixed on through modes such as soldering, paster, laser, plasma welding, the design of conductive pattern 3 can adopt method for computer simulation to come optimised devices whole optics, electricity and thermal property.
Conductive pattern 3 is directly or indirectly to be formed on this flexible circuit board 4; For example directly use calendering process on circuit substrate, to cover copper; And then carry out patterning dry film, exposure, development, etching, striping, zinc-plated plumbous step, to obtain having the conductive pattern 3 of predetermined circuit patterns.The pad (pad) that comprises the both positive and negative polarity that is used to connect this led chip 1 in this conductive pattern 3.
This led chip 1 can use heat-conducting glue or scolding tin, is fixed in the land 5 of flexible circuit board 4 reservations.This led chip 1 can be selected ruddiness, green glow or blue-light LED chip for use, if hope to send white light, can use high-power blue-light LED chip collocation fluorescent material.
Flexible circuit board LED two-dimensional array light source has following characteristics:
1, plane formula justifying encapsulated semiconductor helps quick, High-efficient Production, and automaticity is high, can justifying encapsulate fast.The reliability of encapsulating products is high, high conformity.
2, circuit substrate is selected the flexible thin film type material for use, has increased heat radiation, light extraction efficiency and the plasticity of led light source.
3, the via design on the circuit substrate has increased the heat-sinking capability of led light source greatly.
4, on circuit substrate, directly form conductive pattern, saved the problem of single product needed independent wiring.
5, compare with traditional LED encapsulated type, this flat, thin membranous type justifying packaged LED product is easier to heat radiation, and selecting for use of flexible circuit board realized plane and curved surface light source simultaneously, has increased the popularity that led light source is used.
More than show and described basic principle, principal character and the advantage of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (1)
1. flexible circuit board LED two-dimensional array light source; Comprise several led chips or packaged LED lamp pearl; It is characterized in that: also comprise flexible circuit board; Printing perhaps is laminated with the conductive material that has conductive pattern on flexible circuit board, and the printing solder mask forms some lands on flexible circuit board, and said led chip or packaged LED lamp pearl are installed on the land; And linking conducting each other through conductive pattern, no regions of conductive material offers the array through hole on flexible circuit board.
2, a kind of flexible circuit board LED two-dimensional array light source according to claim 1; It is characterized in that: said flexible circuit board heatproof is more than 250 degrees centigrade; Thickness is below 1 millimeter, and tensile strength makes to reach 2mm and do not rupture being bent to the curvature minimum more than 1MPa; Fine fisssure does not produce fold.
3, a kind of flexible circuit board LED two-dimensional array light source according to claim 2 is characterized in that: said flexible circuit board adopts transparent polyester class film.
4, a kind of flexible circuit board LED two-dimensional array light source according to claim 3, it is characterized in that: said flexible circuit board thickness is between 0.08mm-0.2mm.
5, a kind of flexible circuit board LED two-dimensional array light source according to claim 4, it is characterized in that: said led array light source bends to curved surface light source.
6, a kind of flexible circuit board LED two-dimensional array light source according to claim 5, it is characterized in that: said curved surface light source is an axial symmetry macaroni light source, comprises cylinder and ellipsoid.
7, a kind of flexible circuit board LED two-dimensional array light source according to claim 6 is characterized in that: apply fluorescent material on the said led chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205302457U CN202469553U (en) | 2011-12-16 | 2011-12-16 | LED two-dimensional array light source having flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205302457U CN202469553U (en) | 2011-12-16 | 2011-12-16 | LED two-dimensional array light source having flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469553U true CN202469553U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205302457U Expired - Fee Related CN202469553U (en) | 2011-12-16 | 2011-12-16 | LED two-dimensional array light source having flexible circuit board |
Country Status (1)
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| CN (1) | CN202469553U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818146A (en) * | 2012-06-29 | 2012-12-12 | 王知康 | Omni-directional light emitting type plastic coated LED (light-emitting diode) module made from thin copper foil, and processing method of such LED module |
| CN102818145A (en) * | 2012-06-29 | 2012-12-12 | 王知康 | Combined type LED (light-emitting diode) module without radiator, and production method thereof |
| WO2015058730A1 (en) * | 2013-10-23 | 2015-04-30 | Koukaam A.S. | Irradiation equipment for cctv cameras |
| CN105226167A (en) * | 2015-11-02 | 2016-01-06 | 杭州电子科技大学 | A kind of flexible LED filament of full angle luminescence and manufacture method thereof |
| CN110538068A (en) * | 2019-09-25 | 2019-12-06 | 江西隆成医疗器械有限公司 | LED light source assembly for thermal moxibustion therapeutic apparatus and preparation method thereof |
| CN117429200A (en) * | 2023-11-30 | 2024-01-23 | 温州格洛博电子有限公司 | Decorative patch with built-in flexible circuit LED enhanced decoration and production method thereof |
-
2011
- 2011-12-16 CN CN2011205302457U patent/CN202469553U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818146A (en) * | 2012-06-29 | 2012-12-12 | 王知康 | Omni-directional light emitting type plastic coated LED (light-emitting diode) module made from thin copper foil, and processing method of such LED module |
| CN102818145A (en) * | 2012-06-29 | 2012-12-12 | 王知康 | Combined type LED (light-emitting diode) module without radiator, and production method thereof |
| CN102818146B (en) * | 2012-06-29 | 2014-10-29 | 王知康 | Omni-directional light emitting type plastic coated LED (light-emitting diode) module made from thin copper foil, and processing method of such LED module |
| CN102818145B (en) * | 2012-06-29 | 2014-10-29 | 王知康 | Combined type LED (light-emitting diode) module without radiator, and production method thereof |
| WO2015058730A1 (en) * | 2013-10-23 | 2015-04-30 | Koukaam A.S. | Irradiation equipment for cctv cameras |
| CN105226167A (en) * | 2015-11-02 | 2016-01-06 | 杭州电子科技大学 | A kind of flexible LED filament of full angle luminescence and manufacture method thereof |
| CN105226167B (en) * | 2015-11-02 | 2017-06-27 | 杭州电子科技大学 | A kind of luminous flexible LED filament of full angle and its manufacture method |
| CN110538068A (en) * | 2019-09-25 | 2019-12-06 | 江西隆成医疗器械有限公司 | LED light source assembly for thermal moxibustion therapeutic apparatus and preparation method thereof |
| CN117429200A (en) * | 2023-11-30 | 2024-01-23 | 温州格洛博电子有限公司 | Decorative patch with built-in flexible circuit LED enhanced decoration and production method thereof |
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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 |
Granted publication date: 20121003 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |