CN201638850U - LED lamp with lens filled with fluorescent glue - Google Patents
LED lamp with lens filled with fluorescent glue Download PDFInfo
- Publication number
- CN201638850U CN201638850U CN2010201692543U CN201020169254U CN201638850U CN 201638850 U CN201638850 U CN 201638850U CN 2010201692543 U CN2010201692543 U CN 2010201692543U CN 201020169254 U CN201020169254 U CN 201020169254U CN 201638850 U CN201638850 U CN 201638850U
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- lens
- led
- glue
- crystal grain
- cavity
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- Expired - Lifetime
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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Abstract
The utility model discloses a light emitting diode (LED) lamp with a lens filled with fluorescent glue, which comprises an LED chip, a base, encapsulation glue, the fluorescent glue and the lens, wherein the LED chip is fixed on the base, the lens covers the LED crystal grains and the base forming a cavity for accommodating the encapsulation glue, a cavity layer used for filling the fluorescent glue is arranged inside the lens, the lens is also provided with a glue injection hole, the curing formed encapsulation glue injected into the cavity through the glue injection hole is covered on the LED crystal grains, and the curing formed fluorescent glue injected through the glue injection hole is arranged in the cavity layer. Through the special processing mode of the fluorescent glue of the utility model, the uniform coating of the fluorescent glue can be realized, LED light spots are uniform, and the color consistency is good. At the same time, the fluorescent glue and chips are separated through the encapsulation glue, when the LED is lighted and the chips generate heat, the degradation influence on the performance of fluorescent powder by heat can be reduced, and the service life of the LED can be prolonged.
Description
Technical field
The utility model relates to light-emitting diode (LED Light Emitting Diode) encapsulation technology, be specifically related to a kind of in lens cavity the LED lamp of injected with fluorescent glue.
Background technology
The main method of making white LED lamp at present is to apply yellow fluorescent powder in the blue-ray LED wafer surface, through the blue-light excited gold-tinted that sends, presents white light with the blue light that sees through.Traditional high-power LED packaging method mainly contains two kinds, and a kind of is the molded lens injecting glue, and another kind is the lens compression moldings.
Molded lens injecting glue technology at LED wafer surface point fluorescent glue, covers lens after being earlier solid brilliant, bonding wire then, injecting glue in lens again, final curing moulding.
The lens die press technology for forming is to form lens in encapsulation process, Fig. 2 is for adopting conventional point powder encapsulated LED modulated structure schematic diagram, a kind of packaging technology of high-powered LED lamp in being 200710030627.1 Chinese patent, application number has been proposed, when this method encapsulates white LED lamp, earlier heating panel and electrode are fixed in the pedestal, with a kind of glue that sticks together the LED wafer is pasted and fixed on the heating panel center, make wafer be positioned at the bowl cup of pedestal 1 and heat-conducting plate formation, gold thread 5 makes wafer 2 be connected with the electrode of pedestal 1 then, in above-mentioned bowl cup, apply fluorescent glue 3 again, wafer 2 is covered by fluorescent glue 3 fully, a hollow lens model 4 is covered lens installation site on pedestal 1, hand-hole by lens model 4 edges and pedestal 1 contact position injects silica gel in lens model 4 then, baking makes the silica gel moulding again, form silica-gel lens, peel lens model at last off.
More than two kinds of LED lamp method for packing be based on all that gluing process finishes, be by fluorescent glue being placed in certain little container, control gel quantity by controlling the plastic emitting time, final self flowing and the surface tension moulding by glue, the method can not be controlled the consistency that is wrapped in wafer top and fluorescent glue layer thickness all around, cause directly over the wafer and fluorescent glue variable thickness all around, wafer be 180 ° luminous, during the fluorescent glue of the light directive variable thickness of sending via wafer, will cause the LED lamp color homogeneity difference that encapsulates out very big.
Summary of the invention
The technical problems to be solved in the utility model is, overcomes the deficiency of existing some fluorescent glue technology, and a kind of be easy to control the LED lamp packaging technology of fluorescent glue thickness, the LED lamp that adopts this technology to make are provided.
In view of above problem, the utility model provides a kind of light-emitting diode (LED) lamp of lens injected with fluorescent glue, comprise LED crystal grain, pedestal, packaging plastic, fluorescent glue, lens, wherein, described LED crystal grain is fixed on the described pedestal, described lens cap residence is stated LED crystal grain and described pedestal and is formed a cavity that holds packaging plastic, and described lens inside has a chamber layer that is used to fill fluorescent glue, and described lens also have hole for injecting glue; Be coated with the packaging plastic of the curing molding that in described cavity, injects by described hole for injecting glue on the described LED crystal grain, the fluorescent glue of the curing molding that injects by described hole for injecting glue is arranged in the layer of described chamber.
Further, described chamber layer has uniform thickness.
Further, the frontal projected area of described chamber layer is not less than 60% of described lens frontal projected area.
Further, described pedestal is a planar structure, and described lens are fluted near the mask of a side of described LED crystal grain, cover described LED crystal grain and described pedestal and form a cavity.
Further, described pedestal has the bowl cup, and described LED crystal grain places described bowl cup, and described lens are fluted near the mask of a side of described LED crystal grain, cover described LED crystal grain and described pedestal and form a cavity.
Further, described groove is a spherical groove, and described chamber layer is spherical structure or domes.
Further, described pedestal has the bowl cup, and described LED crystal grain places described bowl cup, and described lens are planar structure near the face of a side of described LED crystal grain, and LED crystal grain is stated in described lens cap residence and described pedestal forms a cavity.
Further, described chamber layer is planar structure or domes.
Further, described lens are provided with two hole for injecting glue and two steam vents, be used to inject the hole for injecting glue of packaging plastic and the steam vent of the unnecessary colloid of a discharge comprising one, all be communicated with described cavity, and one the hole for injecting glue and that is used to inject fluorescent glue discharge the steam vent of unnecessary colloid, all be communicated with described chamber layer.
The utility model other LED light fixtures more of the same type have following advantage:
In above-mentioned the utility model, earlier the packaging plastic hole for injecting glue is injected colloid, and from the unnecessary colloid of packaging plastic steam vent discharge, inject fluorescent glue from the fluorescent glue hole for injecting glue then, and from the unnecessary fluorescent glue of fluorescent glue steam vent discharge, because being used to fill the cavity thickness of fluorescent glue in the lens can adjust as required, the processing mode of fluorescent glue can realize the even coating of fluorescent glue, when cavity thickness is adjusted into uniform thickness, fluorescent material evenly can be excited during the light directive fluorescent glue that sends via LED, the colour temperature consistency of LED can improve greatly, and LED hot spot colourity is even.Simultaneously have packaging plastic spaced apart between fluorescent glue and the wafer, when LED lights, the wafer adstante febre can reduce the influence of fading of heat to the fluorescent material performance, thereby reduces the light decay of LED, prolongs the LED life-span.
Description of drawings
Fig. 1 is the schematic diagram of product in the prior art;
Fig. 2 adopts conventional point fluorescent glue encapsulated LED structural representation;
Fig. 3 is the profile of the utility model first embodiment;
Fig. 4 is the profile of the utility model second embodiment;
Fig. 5 is the profile of the utility model the 3rd embodiment;
Fig. 6 is the top view of first, second and third embodiment of the utility model;
Fig. 7 is the right view of the utility model injected with fluorescent glue lens;
Fig. 8 is the front view of the utility model injected with fluorescent glue lens.
Embodiment
Below will cooperate graphic and embodiment describes execution mode of the present utility model in detail, by this to the utility model how the application technology means implementation procedure that solves technical problem and reach the technology effect can fully understand and implement according to this.
Core of the present utility model: described lens cap residence is stated LED crystal grain and is formed a cavity that holds packaging plastic, and described lens inside has a chamber layer that is used to fill fluorescent glue, and described lens also have hole for injecting glue; Be coated with the packaging plastic of the curing molding that in described cavity, injects by described hole for injecting glue on the described LED crystal grain, the fluorescent glue of the curing molding that injects by hole for injecting glue is arranged in the layer of described chamber.
The thickness of described whole chamber layer can be adjusted to consistent uniform thickness.
Described lens are provided with two hole for injecting glue and two steam vents, and the steam vent that wherein is used to inject the hole for injecting glue of packaging plastic and discharge unnecessary colloid is communicated with cavity, the steam vent connected chamber layer that is used to inject the hole for injecting glue of fluorescent glue and discharges unnecessary colloid.
Described packaging plastic generally comprises: silica gel, epoxy resin or silicones; Described fluorescent glue is generally mixtures one or more in fluorescent material and silica gel, epoxy resin or the silicones; Described lens are transparent hemisphere or other shapes, and its material generally comprises as organic materials such as silica gel, epoxy resin, Merlon or as inorganic material such as glass.
LED crystal grain can be one or many.
Following with reference to description of drawings embodiment of the present utility model.
Fig. 3 is the profile of the utility model first embodiment, and Fig. 6 is the top view of the utility model first embodiment.Present embodiment comprises: pedestal 1, LED crystal grain 2, packaging plastic 3, fluorescent glue 4, lens 5, gold thread 6, fluorescent glue hole for injecting glue 7, fluorescent glue steam vent 8, packaging plastic hole for injecting glue 9, packaging plastic steam vent 10, fluorescent glue cavity 11.
Earlier a LEDs crystal grain 2 is sticked together the gluing solid brilliant position that is connected on pedestal 1 by elargol or other, with gold thread 6 LED crystal grain 1 and pedestal 1 are realized being electrically connected then, lens 5 are installed on the relevant position of pedestal 1, described lens 5 cover described LED crystal grain 2, because lens 5 are fluted, button covers described LED crystal grain 2 backs and forms a cavity to hold packaging plastic, simultaneously described lens are provided with a thin layer cavity (Jiao Dao) that is used to fill fluorescent glue near the face (being the surface of groove near described cavity) of described LED crystal grain, are shaped to a planar structure;
Described lens also are provided with fluorescent glue hole for injecting glue 7, fluorescent glue steam vent 8, packaging plastic hole for injecting glue 9, packaging plastic steam vent 10; Use spot gluing equipment to inject an amount of packing colloid from packaging plastic hole for injecting glue 9, unnecessary colloid is discharged from packaging plastic steam vent 10, inject an amount of fluorescent colloid from fluorescent glue hole for injecting glue 7 then, unnecessary colloid is discharged from fluorescent glue steam vent 8, the final curing moulding, promptly finish the encapsulation of LED, solidify the packaging plastic that is coated with curing molding on the described LED crystal grain in back, the fluorescent glue of curing molding is arranged in the described thin layer cavity.
Fig. 4 is the profile of the utility model second embodiment, and Fig. 6 is the top view of the utility model second embodiment.The difference of the present embodiment and first embodiment is, described lens are provided with a thin layer cavity (Jiao Dao) that is used to fill fluorescent glue near the face of described LED crystal grain, and it is shaped to domes, and LED crystal grain 2 is connected on the solid brilliant position of pedestal 1 by flip chip bonding.
Fig. 5 is the profile of the utility model the 3rd embodiment, and Fig. 6 is the top view of the utility model the 3rd embodiment.The difference of present embodiment and first and second embodiment is that lens 5 are a planar structure.
Need to prove, in the foregoing description, lens are used to fill the cavity thickness of fluorescent glue and can adjust as required, when the thickness of cavity is homogeneous thickness, fluorescent material evenly can be excited during the light directive fluorescent glue that sends via the LED lamp, the colour temperature consistency of LED can improve greatly, and LED light spot is even.The frontal projected area of described chamber layer is not less than 60% of described lens frontal projected area, goes out luminous energy all by described chamber layer with what guarantee described LED crystal grain.
In addition, for this programme, pedestal can be planar structure, and this just requires lens fluted near the mask of a side of LED crystal grain, can cover LED crystal grain and pedestal and form a cavity; Described pedestal also can have the bowl cup, and described LED crystal grain places described bowl cup, and this moment, lens still can be provided with groove near the face of a side of described LED crystal grain, covered described LED crystal grain and described pedestal and formed a cavity;
For above-mentioned situation, groove can be sphere or arcuate recess, and the chamber layer also can be sphere or domes.
For this programme, pedestal can have the bowl cup, and LED crystal grain places described bowl cup, and the face of a side of the close described LED crystal grain of lens can also be planar structure, and LED crystal grain is stated in the lens cap residence and described pedestal forms a cavity;
For above-mentioned situation, the chamber layer also can be planar structure or domes.
Corresponding above-mentioned LED product structure, the utility model has also proposed the LED method for packing by injected with fluorescent glue in lens cavity, be applied to the above-mentioned LED that comprises pedestal, LED crystal grain, pedestal, gold thread, packaging plastic, fluorescent glue, lens, specifically comprise following operation:
Described LED crystal grain is fixed on the pedestal, and finishes by lead and to be electrically connected;
On described LED crystal grain, described lens are provided with a uniform thin layer cavity of thickness that is used to fill fluorescent glue near the face of described LED crystal grain with described lens cap;
Inject packing colloid from the hole for injecting glue of described lens and cover described LED crystal grain, inject fluorescent colloid from the hole for injecting glue of described lens to described thin layer cavity again, finish the LED encapsulation behind the curing molding.
The operating procedure of method of the present utility model is corresponding with the architectural feature of aforementioned LED product, can give unnecessary details no longer one by one with reference to the explanation of before product section.
In addition, the utility model is applied to above-mentioned LED lamp, a kind of lens of supporting that fluorescent glue injects have also been proposed, with reference to figure 7 and Fig. 8, be respectively the right view and the front view of the utility model injected with fluorescent glue lens, described lens are provided with a uniform thin layer cavity of thickness that is used to fill fluorescent glue, also are provided with the steam vent that is used to inject the hole for injecting glue of fluorescent glue and gets rid of unnecessary fluorescent glue.
Described lens are provided with two hole for injecting glue and two steam vents, the steam vent 10 that wherein is used to inject the hole for injecting glue 9 of packaging plastic and discharge unnecessary colloid is communicated with the cavity that substrate forms with described lens, the steam vent 8 that is used to inject the hole for injecting glue 7 of fluorescent glue and discharge unnecessary colloid is positioned at the position of the thin layer cavity of described lens, is communicated with described thin layer cavity (Jiao Dao).
Though the disclosed execution mode of the utility model as above, yet described content is not in order to direct qualification protection range of the present utility model.Technical staff in the technical field under any the utility model under the prerequisite that does not break away from the disclosed spirit and scope of the utility model, can do a little change what implement in form and on the details.Protection range of the present utility model still must be as the criterion with the scope that appending claims was defined.
Claims (9)
1. the light-emitting diode of a lens injected with fluorescent glue (LED) lamp is characterized in that, comprises LED crystal grain, pedestal, packaging plastic, fluorescent glue, lens,
Wherein, described LED crystal grain is fixed on the described pedestal, and described lens cap residence is stated LED crystal grain and described pedestal and formed a cavity that holds packaging plastic, and described lens inside has a chamber layer that is used to fill fluorescent glue, and described lens also have hole for injecting glue; Be coated with the packaging plastic of the curing molding that in described cavity, injects by described hole for injecting glue on the described LED crystal grain, the fluorescent glue of the curing molding that injects by described hole for injecting glue is arranged in the layer of described chamber.
2. LED lamp as claimed in claim 1 is characterized in that,
Described chamber layer has uniform thickness.
3. LED lamp as claimed in claim 2 is characterized in that,
The frontal projected area of described chamber layer is not less than 60% of described lens frontal projected area.
4. LED lamp as claimed in claim 3 is characterized in that,
Described pedestal is a planar structure, and described lens are fluted near the mask of a side of described LED crystal grain, cover described LED crystal grain and described pedestal and form a cavity.
5. LED lamp as claimed in claim 3 is characterized in that,
Described pedestal has the bowl cup, and described LED crystal grain places described bowl cup, and described lens are fluted near the mask of a side of described LED crystal grain, cover described LED crystal grain and described pedestal and form a cavity.
6. as claim 4 or 5 described LED lamps, it is characterized in that,
Described groove is a spherical groove, and described chamber layer is spherical structure or domes.
7. LED lamp as claimed in claim 3 is characterized in that,
Described pedestal has the bowl cup, and described LED crystal grain places described bowl cup, and described lens are planar structure near the face of a side of described LED crystal grain, and LED crystal grain is stated in described lens cap residence and described pedestal forms a cavity.
8. LED lamp as claimed in claim 7 is characterized in that,
Described chamber layer is planar structure or domes.
9. as claim 4 or 5 or 8 described LED lamps, it is characterized in that,
Described lens are provided with two hole for injecting glue and two steam vents, be used to inject the hole for injecting glue of packaging plastic and the steam vent of the unnecessary colloid of a discharge comprising one, all be communicated with described cavity, and one the hole for injecting glue and that is used to inject fluorescent glue discharge the steam vent of unnecessary colloid, all be communicated with described chamber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201692543U CN201638850U (en) | 2010-04-20 | 2010-04-20 | LED lamp with lens filled with fluorescent glue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201692543U CN201638850U (en) | 2010-04-20 | 2010-04-20 | LED lamp with lens filled with fluorescent glue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638850U true CN201638850U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201692543U Expired - Lifetime CN201638850U (en) | 2010-04-20 | 2010-04-20 | LED lamp with lens filled with fluorescent glue |
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| CN (1) | CN201638850U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826590A (en) * | 2010-04-20 | 2010-09-08 | 北京朗波尔光电股份有限公司 | LED lamp with lens injected with fluorescent glue and packaging method thereof |
| CN102867902A (en) * | 2012-10-08 | 2013-01-09 | 江苏国星电器有限公司 | LED (light-emitting diode) lamp capable of enhancing white light consistency and improving light spots and packaging method of LED lamp |
| CN102891235A (en) * | 2011-07-20 | 2013-01-23 | 山东华光光电子有限公司 | High-output low-attenuation white light LED (light emitting diode) and manufacturing method thereof |
| CN102969308A (en) * | 2012-11-20 | 2013-03-13 | 彩虹奥特姆（湖北）光电有限公司 | LED (light-emitting diode) lamp structure and packaging method thereof |
| CN103094268A (en) * | 2011-11-04 | 2013-05-08 | 杭州华普永明光电股份有限公司 | Light-emitting diode (LED) module used for commercial lighting and manufacturing method thereof |
| CN114199185A (en) * | 2021-12-10 | 2022-03-18 | 重庆航伟光电科技有限公司 | Airtight packaging structure of distance measuring optical device for vehicle |
-
2010
- 2010-04-20 CN CN2010201692543U patent/CN201638850U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826590A (en) * | 2010-04-20 | 2010-09-08 | 北京朗波尔光电股份有限公司 | LED lamp with lens injected with fluorescent glue and packaging method thereof |
| CN102891235A (en) * | 2011-07-20 | 2013-01-23 | 山东华光光电子有限公司 | High-output low-attenuation white light LED (light emitting diode) and manufacturing method thereof |
| CN102891235B (en) * | 2011-07-20 | 2015-02-18 | 山东华光光电子有限公司 | High-output low-attenuation white light LED (light emitting diode) and manufacturing method thereof |
| CN103094268A (en) * | 2011-11-04 | 2013-05-08 | 杭州华普永明光电股份有限公司 | Light-emitting diode (LED) module used for commercial lighting and manufacturing method thereof |
| CN102867902A (en) * | 2012-10-08 | 2013-01-09 | 江苏国星电器有限公司 | LED (light-emitting diode) lamp capable of enhancing white light consistency and improving light spots and packaging method of LED lamp |
| CN102969308A (en) * | 2012-11-20 | 2013-03-13 | 彩虹奥特姆（湖北）光电有限公司 | LED (light-emitting diode) lamp structure and packaging method thereof |
| CN102969308B (en) * | 2012-11-20 | 2015-05-20 | 彩虹奥特姆（湖北）光电有限公司 | LED (light-emitting diode) lamp structure and packaging method thereof |
| CN114199185A (en) * | 2021-12-10 | 2022-03-18 | 重庆航伟光电科技有限公司 | Airtight packaging structure of distance measuring optical device for vehicle |
| CN114199185B (en) * | 2021-12-10 | 2024-06-07 | 重庆航伟光电科技有限公司 | Airtight packaging structure of distance measuring optical device for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING LANDSKY LIGHTING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING LAMPOWER PHOTOELECTRIC CO., LTD. Effective date: 20111219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100176 CHAOYANG, BEIJING TO: 100025 CHAOYANG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20111219 Address after: 2000 business center 100 No. 100025 Beijing Chaoyang District City eight Zhuang Xili No. 1 building 15 layer Patentee after: BEIJING LANDSKY LIGHTING TECHNOLOGY CO., LTD. Address before: 100176, No. two, No. 28, Hai Lu, Beijing economic and Technological Development Zone, Beijing Patentee before: Beijing Lampearl Photoelectric Co.,Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |