CN202384336U - Light-emitting diode (LED) light source module - Google Patents
Light-emitting diode (LED) light source module Download PDFInfo
- Publication number
- CN202384336U CN202384336U CN2011205115022U CN201120511502U CN202384336U CN 202384336 U CN202384336 U CN 202384336U CN 2011205115022 U CN2011205115022 U CN 2011205115022U CN 201120511502 U CN201120511502 U CN 201120511502U CN 202384336 U CN202384336 U CN 202384336U
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- light source
- source module
- led light
- metallic plate
- circuit board
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Abstract
The utility model discloses a light-emitting diode (LED) light source module, which comprises a metal plate, a printed circuit board, a chip fixed on the upper surface of the metal plate, a lead connecting the chip and the printed circuit board, a retaining part arranged on the metal plate and a fluorescent powder and silica gel mixture, wherein a pad is arranged on the printed circuit board, the retaining part surrounds the chip, and the fluorescent powder and silica gel mixture is filled in the retaining part and covers the chip. The thickness of the metal plate is smaller than 2mm, an opening is stamped on the metal plate, the printed circuit board is fixed on the lower surface surrounding the opening on the metal plate, and the lead penetrates through the opening to be respectively welded onto the chip and the pad of the printed circuit board. The technical problem that the LED light source module is complicated is solved. The LED light source module has the advantages of being simple in structure, high in light emitting efficiency and convenient to manufacture. Besides, lines can be led out of the lower portion of the LED light source module, and a lamp is convenient to install.
Description
Technical field
The utility model relates to a kind of led light source, particularly a kind of led light source module.
Background technology
LED (light-emitting diode) encapsulation is meant the encapsulation of luminescence chip, compares integrated circuit and is packaged with bigger difference.The encapsulation of LED not only requirement can be protected wick, but also can printing opacity, so the encapsulation of LED has special requirement to encapsulating material.The LED encapsulation is to accomplish the output signal of telecommunication, protection tube core operate as normal, and the function of output visible light, existing electrical quantity has the design and the specification requirement of optical parameter again, can't use common encapsulation technology simply.
The core luminous component of LED is by the pn of p type and n N-type semiconductor N knot tube core, when the pn knot through electric current, electronics is quite mobile with the hole and when combining, and will send visible light, ultraviolet light or near infrared light.But the photon that pn sends in the interface is a non-directional, and promptly the probability to all directions emission is identical.Therefore be not that all light that tube core produces can discharge, this depends primarily on semi-conducting material quality, tube core structure and geometry, encapsulation internal structure and encapsulating material.
Generally speaking, the emission wavelength of LED is 0.2-0.3nm/ ℃ with variations in temperature, and spectral width increases thereupon, influences bright-colored degree.In addition, when flow through pn knot of forward current, the heat generation loss raises pn knot junction temperature.Near room temperature, 1 ℃ of the every rising of temperature, the luminous intensity of LED can correspondingly reduce about 1 ﹪.So the package cooling performance, seem particularly important in the colorimetric purity and the luminous intensity that keep LED to work when luminous.In the past ways that reduce its drive current that adopt reduce pn knot junction temperature more, keep luminous colorimetric purity and intensity of illumination, and the drive current of most LED all remains on about 20mA.But the light output meeting of LED increases along with the increase of electric current, and the drive current of at present a lot of power-type LEDs can reach 70mA, 100mA even 1A level, needs to improve encapsulating structure.
After getting into 21 century, the high efficiency of LED, super brightnessization, panchromaticization constantly develop innovation, and red, orange LED light efficiency has reached 100 lm/W, and green LED is 50 lm/W, and the luminous flux of single LED also reaches tens of lumens (lm).Led chip no longer follows traditional design concept and makes production model with encapsulation, and at the light output facet that increases chip, research and development are not limited only to change the amount of impurities in the material; Lattice defect and dislocation improve internal efficiency; Simultaneously, how to improve tube core and encapsulation internal structure, strengthen the inner probability that produces the photon outgoing of LED; Improve light efficiency, solve heat radiation, get the heavy optimal design of light and heat, improve optical property.
Current many technical staff promote radiating effect for improving heat dispersion, aspect encapsulation, have adopted the encapsulation of COB form, and the citation form of this aluminium base is: in a certain zone is polishing or silver-plated district, in order to fixed chip; Line layer is arranged beyond in this zone, be used for bonding wire and connecting circuit, certain reflective oil plant has generally all been printed in the zone beyond polishing or silver-plated district, and its reflecting rate is basically all below 70%, and the general brightness of COB light source of working it out like this is all lower; In addition, because line layer is on COB light source substrate surface, when the assembling light fixture; Generally all be two leads of weldering on light source substrate, be drawn out to then on the driving power that this is on producing; Increased operation, and lead also there is certain influence in the bright dipping of just facing of substrate.
Summary of the invention
For addressing the above problem, the utility model discloses the led light source module and have simple in structurely, light extraction efficiency is high, easily manufactured advantage, circuit can be drawn from the below of led light source module in addition, is convenient to lamp installation.
The disclosed led light source module of the utility model comprises: metallic plate; Printed circuit board (PCB) has pad on the printed circuit board (PCB); Chip is fixed in the metallic plate upper surface; Lead links to each other chip with printed circuit board (PCB); Enclose shelves, be arranged on the metallic plate, and chip is enclosed in the enclosing; Fluorescent material and silica-gel mixture, fluorescent material and silica-gel mixture are filled in to enclose in the shelves and with chip and cover in fluorescent material and the silica-gel mixture; Plate thickness is less than 2mm, and stamps out opening above that, and printed circuit board (PCB) is fixed in the lower surface around the metallic plate upper shed, and lead passes on the pad that opening is welded to chip and printed circuit board (PCB) respectively.The disclosed led light source module of the utility model has simple in structure, and light extraction efficiency is high, easily manufactured advantage, and circuit can be drawn from the below of led light source module in addition, is convenient to lamp installation.
A kind of improvement of the disclosed led light source module of the utility model, metallic plate are that periphery is the platform shape structure of step.This improvement is set to have the platform shape structure of step through metallic plate, helps led light source module fitting operation in use and the efficiently radiates heat area that has increased metallic plate, has improved radiating efficiency.
Another improvement of the disclosed led light source module of the utility model, metallic plate are surface finish aluminium sheet or electroplate copper coin.This improved metallic plate is surface finish aluminium sheet or sheffield plate, and effectively body has improved the reflecting properties of metallic plate to led light source light, has improved the luminous efficiency of led light source and to utilization efficiency of energy.
Another improvement of the disclosed led light source module of the utility model, metallic plate are upper surface polishing aluminium sheet or upper surface sheffield plate.This improvement is perhaps silver-plated with the reflecting surface polishing of metallic plate, has avoided meaningless consumption and processing to metallic plate, has reduced the production cost of led light source module, has reduced energy consumption effectively, and has improved the efficient of producing.
Another improvement of the disclosed led light source module of the utility model, the metallic plate bottom is provided with groove.This improvement is led in the bottom of metallic plate groove is set; For the led light source module printed circuit board (PCB) fixedly provide a kind of maybe; Simultaneously also can groove be connected chimeric fixture as the installation of light source module, reduce and simplified the structure and the degree of difficulty of using fitting operation of led light source module.
Another improvement of the disclosed led light source module of the utility model, printed circuit board (PCB) is fixed in the groove.This improvement is fixed on the structure of having simplified the led light source module in the groove effectively with printed circuit board (PCB), simultaneously printed circuit board (PCB) is fixed in the groove, has improved the stability of led light source module product structure, has improved the useful life and the security performance of light source module.
Another of the disclosed led light source module of the utility model improved, and groove is arranged on the below of opening, and the internal diameter of opening is less than the internal diameter of groove.Following be convenient to being connected led light source module chips and printed circuit board (PCB) between of this improvement through groove being arranged on opening; Avoided to realizing the additionally punching on the metallic plate that is connected between the two; Simplified the structure of light source module; Also improve the efficient of installing and using of light source module simultaneously, also reduced production cost of products.
Another improvement of the disclosed led light source module of the utility model is enclosed shelves and is fixed on the metallic plate through a glue mode.This improvement is fixed on the metallic plate through the mode that enclosing is adopted some glue, makes enclosing can adopt with the inconsistent material of metallic plate and carries out processing and manufacturing, thereby can the product cost of light source module be controlled, to reduce the production cost of light source module.
Another of the disclosed led light source module of the utility model improved, and is filled with the cylinder that adapts with the openings of sizes shape by one or more the mixture making that form with transparent colloid wherein of white inorganic material powder barium sulfate or calcium sulfate or magnesium sulfate in the opening.This improvement has improved the luminous monochromatic performance of led light source module product effectively through in opening, filling the mixture of white inorganic material powder and transparent colloid, has improved the quality of product.
Another improvement of the disclosed led light source module of the utility model contains several pads in the printed circuit board (PCB), be fixed with some IC or some SMD devices on the part pad.This improvement has improved the integrated level of led light source effectively through adding IC or SMD device, helps under the prerequisite of the power that guarantees led light source, effectively reducing the volume and the specification of led light source module.
The led light source module that the disclosed led light source module of the utility model provides is with the substrate of polished aluminum as fixed chip; The cancellation layer printed circuit board; Be positioned over the opposite side of substrate with printed circuit board (PCB) replacement and with it; Compare with existing COB light source, the major part of substrate can be made the reflecting surface of high reflecting rate, directly improves the efficient of light source; Print the single channel version in addition and be fixed on the back side of substrate, when in use, be crushed between substrate and the radiator, reliability is higher, and is more firm; The line layer of this led light source module is drawn from the below, also is convenient to assemble light fixture and has simple in structurely, and light extraction efficiency is high, easily manufactured advantage, and circuit can be drawn from the below of led light source module in addition, is convenient to lamp installation.
Description of drawings
A kind of embodiment of Fig. 1, the disclosed led light source module of the utility model;
Another embodiment of Fig. 2, the disclosed led light source module of the utility model;
Another embodiment of Fig. 3, the disclosed led light source module of the utility model.
Accompanying drawing is indicated tabulation:
1, metallic plate; 2, printed circuit board (PCB); 3, chip;
4, lead; 5, enclosing; 6, fluorescent material and silica-gel mixture;
7, opening; 8, groove 9, IC/SMD device
Embodiment
Below in conjunction with accompanying drawing and embodiment, further illustrate the utility model, should understand following embodiment only be used to the utility model is described and be not used in the restriction the utility model scope.
To shown in Figure 3, the disclosed led light source module of the utility model comprises: metallic plate 1 like Fig. 1; Printed circuit board (PCB) 2 has pad on the printed circuit board (PCB) 2; Chip 3 is fixed in metallic plate 1 upper surface; Lead 4 links to each other chip 3 with printed circuit board (PCB) 2; Enclose shelves 5, be arranged on the metallic plate 1, and chip 3 is enclosed in the enclosing 5; Fluorescent material and silica-gel mixture 6, fluorescent material and silica-gel mixture 6 are filled in to enclose in the shelves 5 and with chip 3 and cover in fluorescent material and the silica-gel mixture 6; Metallic plate 1 thickness is less than 2mm, and stamps out opening 7 above that, and printed circuit board (PCB) 2 is fixed in the lower surface around metallic plate 1 upper shed 7, and lead 4 passes on the pad that opening is welded to chip 3 and printed circuit board (PCB) 2 respectively.The disclosed led light source module of the utility model has simple in structure, and light extraction efficiency is high, easily manufactured advantage, and circuit can be drawn from the below of led light source module in addition, is convenient to lamp installation.
As a kind of preferred, metallic plate 1 is that periphery is the platform shape structure of step.Be set to have the platform shape structure of step through metallic plate, help led light source module fitting operation in use and the efficiently radiates heat area that has increased metallic plate, improved radiating efficiency.
As a kind of preferred, metallic plate 1 is surface finish aluminium sheet or electroplate copper coin.Through setting metallic plate is surface finish aluminium sheet or sheffield plate, and effectively body has improved the reflecting properties of metallic plate to led light source light, has improved the luminous efficiency of led light source and to utilization efficiency of energy.
As a kind of preferred, metallic plate 1 is upper surface polishing aluminium sheet or upper surface sheffield plate.Through the reflecting surface polishing of metallic plate is perhaps silver-plated, avoided meaningless consumption and processing to metallic plate, reduced the production cost of led light source module, reduce energy consumption effectively, and improved the efficient of producing.
As a kind of preferred, metallic plate 1 bottom is provided with groove 8.Lead in the bottom of metallic plate groove is set; For the led light source module printed circuit board (PCB) fixedly provide a kind of maybe; Simultaneously also can groove be connected chimeric fixture as the installation of light source module, reduce and simplified the structure and the degree of difficulty of using fitting operation of led light source module.
As a kind of preferred, printed circuit board (PCB) 2 is fixed in the groove 8.Through printed circuit board (PCB) being fixed on the structure of having simplified the led light source module in the groove effectively, simultaneously printed circuit board (PCB) is fixed in the groove, improved the stability of led light source module product structure, improved the useful life and the security performance of light source module.
As a kind of preferred, groove 8 is arranged on the below of opening 7, and the internal diameter of opening 7 is less than the internal diameter of groove 8.Through following being convenient to being connected between led light source module chips and the printed circuit board (PCB) that groove is arranged on opening; Avoided to realizing the additionally punching on the metallic plate that is connected between the two; Simplified the structure of light source module; Also improve the efficient of installing and using of light source module simultaneously, also reduced production cost of products.
As a kind of preferred, enclose shelves 5 and be fixed on the metallic plate 1 through a glue mode.Mode through enclosing being adopted some glue is fixed on the metallic plate, makes enclosing can adopt with the inconsistent material of metallic plate and carries out processing and manufacturing, thereby can the product cost of light source module be controlled, to reduce the production cost of light source module.
As a kind of preferred, be filled with the cylinder that adapts with opening 7 size shape in the opening 7 by one or more the mixture making that form with transparent colloid wherein of white inorganic material powder barium sulfate or calcium sulfate or magnesium sulfate.Through in opening, filling the mixture of white inorganic material powder and transparent colloid, improved the luminous monochromatic performance of led light source module product effectively, improved the quality of product.
Another improvement of the disclosed led light source module of the utility model contains several pads in the printed circuit board (PCB), be fixed with some IC or some SMD devices on the part pad.Improve the integrated level of led light source effectively through adding IC or SMD device, helped under the prerequisite of the power that guarantees led light source, effectively reducing the volume and the specification of led light source module.
Embodiment one
As shown in Figure 1; One had punching press obtains required metallic plate 1 on certain thickness polishing aluminium sheet or the sheffield plate, and open an opening 7, a printed circuit board 2 usefulness adhesives are bonded at the back side of metallic plate 1; Let the pad correspondence of printed circuit board (PCB) 2 in opening 7 positions of metallic plate 1; Then chip 3 is fixed on the position of the burnishing surface of metallic plate 1 near opening, then lead 4, the two ends of lead 4 are welded in respectively on chip 3 electrodes on the pad with printed circuit board (PCB) 2; Then in opening 7, fill the mixture of barium sulfate and silica gel; The upper surface of mixture and the upper surface of aluminium sheet are maintained an equal level, around chip 3, apply the corral retaining glue and the enclosing 5 of adhering then, the mixture of then in enclosing glue, filling fluorescent material and silica gel can obtain a kind of embodiment of the described led light source module of the utility model.
Embodiment two
As shown in Figure 2; One had punching press obtains required metallic plate 1 on certain thickness polishing aluminium sheet or the sheffield plate, and punching press forms a groove 8 and an opening 7, printed circuit board (PCB) 2 is embedded in the groove 8; Make the pad of printed circuit board (PCB) 2 corresponding with opening 7; Then in the fixing plurality of chips 3 of the another side of metallic plate 1, with lead 4 chip 3 and printed circuit board (PCB) 2 are electrically connected, an end of lead 4 is welded on the electrode of chip 3; The other end is welded on the pad of printed circuit board (PCB) 2; In the opening 7 of metallic plate 1, fill the mixture of magnesium sulfate and silica gel then, then apply the corral retaining glue and the enclosing 5 of adhering in the periphery of chip, the mixture of in enclosing 5, filling fluorescent material and silica gel then can obtain a kind of embodiment of the described led light source module of the utility model.
Embodiment three
As shown in Figure 3; One had punching press obtains required metallic plate 1 on certain thickness polishing aluminium sheet or the sheffield plate, stamp out a groove 8 and an opening 7, stamp out a projection at opposite side at its edge part; Side at opening 7 is fixed with two row chips 3; Printed circuit board (PCB) 2 is embedded in the groove 8, with lead 4 two row chips 3 is electrically connected, and electrically connects near the chip 3 of opening 7 pad through lead 4 and printed circuit board (PCB) 2; IC/SMD device 9 is arranged on the printed circuit board (PCB) 2; In the groove that is embedded in metallic plate 1 of IC/SMD device 9 correspondences, in opening 7, be filled with the mixture of barium sulfate and silica gel, above metallic plate 1, be coated with the corral retaining glue and the enclosing 5 of adhering; In enclosing 5, be filled with the mixture of fluorescent material and silica gel, can obtain a kind of embodiment of the described led light source module of the utility model.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme of being made up of above technical characterictic combination in any.
The led light source module that the disclosed led light source module of the utility model provides is with the substrate of polished aluminum as fixed chip; The cancellation layer printed circuit board; Be positioned over the opposite side of substrate with printed circuit board (PCB) replacement and with it; Compare with existing COB light source, the major part of substrate can be made the reflecting surface of high reflecting rate, directly improves the efficient of light source; Print the single channel version in addition and be fixed on the back side of substrate, when in use, be crushed between substrate and the radiator, reliability is higher, and is more firm; The line layer of this led light source module is drawn from the below, also is convenient to assemble light fixture and has simple in structurely, and light extraction efficiency is high, easily manufactured advantage, and circuit can be drawn from the below of led light source module in addition, is convenient to lamp installation.
Claims (10)
1. led light source module comprises:
Metallic plate (1);
Printed circuit board (PCB) (2), printed circuit board (PCB) has pad on (2);
Chip (3) is fixed in metallic plate (1) upper surface;
Lead (4) links to each other chip (3) with printed circuit board (PCB) (2);
Enclose shelves (5), be arranged on the metallic plate (1), and chip (3) is enclosed in the enclosing (5);
Fluorescent material and silica-gel mixture (6), fluorescent material and silica-gel mixture (6) are filled in to enclose in the shelves (5) and with chip (3) and cover in fluorescent material and the silica-gel mixture (6);
It is characterized in that: described metallic plate (1) thickness is less than 2mm; And stamp out opening (7) above that; Described printed circuit board (PCB) (2) is fixed on metallic plate (1) upper shed (7) lower surface on every side, and described lead passes on the pad that opening (7) is welded to chip (3) and printed circuit board (PCB) (2) respectively.
2. led light source module according to claim 1 is characterized in that: described metallic plate (1) is the platform shape structure of step for periphery.
3. led light source module according to claim 1 is characterized in that: described metallic plate (1) is surface finish aluminium sheet or electroplate copper coin.
4. led light source module according to claim 3 is characterized in that: described metallic plate (1) is upper surface polishing aluminium sheet or upper surface sheffield plate.
5. led light source module according to claim 1 is characterized in that: described metallic plate (1) bottom is provided with groove.
6. led light source module according to claim 5 is characterized in that: described printed circuit board (PCB) (2) is fixed in the groove.
7. led light source module according to claim 5 is characterized in that: described groove is arranged on the below of opening (7), and the internal diameter of described opening (7) is less than the internal diameter of groove.
8. led light source module according to claim 1 is characterized in that: the described shelves (5) that enclose are fixed on the metallic plate (1) through a glue mode.
9. led light source module according to claim 1 is characterized in that: be filled with the cylinder that adapts with opening (7) size shape by one or more the mixture making that form with transparent colloid wherein of white inorganic material powder barium sulfate or calcium sulfate or magnesium sulfate in the described opening (7).
10. led light source module according to claim 1 is characterized in that: contain several pads in the described printed circuit board (PCB), be fixed with some IC or some SMD devices on the part pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205115022U CN202384336U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205115022U CN202384336U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202384336U true CN202384336U (en) | 2012-08-15 |
Family
ID=46632819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205115022U Expired - Fee Related CN202384336U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) light source module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202384336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208844A (en) * | 2015-01-28 | 2017-09-26 | Lg 伊诺特有限公司 | Light source cell |
| CN110762402A (en) * | 2019-10-18 | 2020-02-07 | 吴少健 | Manufacturing method of matrix type LED lamp source |
-
2011
- 2011-12-09 CN CN2011205115022U patent/CN202384336U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208844A (en) * | 2015-01-28 | 2017-09-26 | Lg 伊诺特有限公司 | Light source cell |
| CN110762402A (en) * | 2019-10-18 | 2020-02-07 | 吴少健 | Manufacturing method of matrix type LED lamp source |
| CN110762402B (en) * | 2019-10-18 | 2021-03-30 | 华南半导体(广东)有限公司 | Manufacturing method of matrix type LED lamp source |
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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: 20120815 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |