CN202678406U - Split type dimmable SMD-LED incandescent lamp - Google Patents
Split type dimmable SMD-LED incandescent lamp Download PDFInfo
- Publication number
- CN202678406U CN202678406U CN2012203065907U CN201220306590U CN202678406U CN 202678406 U CN202678406 U CN 202678406U CN 2012203065907 U CN2012203065907 U CN 2012203065907U CN 201220306590 U CN201220306590 U CN 201220306590U CN 202678406 U CN202678406 U CN 202678406U
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- Prior art keywords
- hole
- light
- luminescence chip
- reflection
- chip
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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
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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Abstract
The utility model relates to a split type dimmable SMD-LED incandescent lamp. Due to the adoption of the split type dimmable SMD-LED incandescent lamp, the technical problems in the prior art, which are large light attenuation and poor light color consistency of white light due to high junction temperature and mutual interference among chips encapsulated in a bowl, and low light efficiency due to the mutual absorption of light wave energy of the chips, are solved. The incandescent lamp comprises a base. The upper surface of the base is provided with a bowl hole. The base is internally provided with pins. The bottom of the bowl hole is provided with a plurality of light-emitting chips. Partition plates are arranged in the bowl hole. The bowl hole is divided into a plurality of reflection holes through the partition plates. Each of the light-emitting chips is separately arranged in one of the reflection holes. Each reflection hole is filled with fluorescent glue or sealing glue respectively. The split type dimmable SMD-LED incandescent lamp has the advantages of small junction temperature, no interference among light-emitting chips, longer service life and higher light efficiency.
Description
Technical field
The utility model relates to a kind of LED luminescence technology, especially relate to a kind of junction temperature little, avoided between the luminescence chip disturbing, the life-span is longer, the white lamp of the better separate type tunable optical of light efficiency paster LED.
Background technology
Because the white lamp of traditional SMD LED only has a bowl cup, only encapsulate blue wafer, the luminous yellow fluorescent powder that excites of blue chip produces gold-tinted like this, so that blue light mixes the generation white light according to a certain percentage with gold-tinted, this white light only contains blue light and gold-tinted, spectrum is single, owing to only having a kind of blue chip, color rendering is poor.Or in same bowl cup, encapsulate simultaneously blue red crystalline substance and improve color rendering, this kind packing forms all is encapsulated in the same fluorescent colloid owing to blue red wafer, because blue red chip all is potted in the same bowl cup by fluorescent glue, two kinds of chips are lighted simultaneously, each other all can heat production, the phase mutual interference, junction temperature can be higher than independent encapsulation, chip can absorb light-wave energy each other, the energy that simultaneously fluorescent glue also can absorptive red light, can cause like this light efficiency on the low side, because heat dissipation problem can cause red white light light decay deviation large, cause photochromic unanimously causing property very poor.Be 200920206360.1 such as the patent No., name is called the Chinese utility model patent of a kind of full-color SMD LED, comprise support, chip, gold thread, PPA plastic plate and the chip of gold thread connection bracket, wherein be provided with border circular areas on the PPA plastic plate surface, the chip yi word pattern is arranged in the border circular areas, the encapsulation glue with chip package on the PPA of support plastic plate.This patent all is encapsulated in chip in the border circular areas exactly, so just has above-mentioned shortcoming, chip each other all can heat production, the phase mutual interference, it is high that junction temperature is wanted, and chip can absorb light-wave energy each other, can cause like this light efficiency on the low side, because heat dissipation problem can cause white light light decay deviation large, cause photochromic consistency very poor in addition.
Summary of the invention
The utility model mainly be solve phase mutual interference between there is chip package in prior art in a bowl cup the chip, junction temperature high, cause large, the photochromic consistency of white light light decay poor, and absorption light-wave energy each other between the chip, cause the low technical problem of light efficiency, provide a kind of junction temperature little, avoided between the luminescence chip disturbing, the life-span is longer, the white lamp of the better separate type tunable optical of light efficiency paster LED.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the white lamp of a kind of separate type tunable optical patch SMD LED, comprise pedestal, be provided with bowl cup hole at pedestal upper surface, be provided with pin in the pedestal, be provided with some luminescence chips in bottom, bowl cup hole, it is characterized in that: in described bowl cup hole, be provided with demarcation strip, demarcation strip is separated into several reflection holes with bowl cup hole, described luminescence chip is arranged on separately respectively in the reflection hole, is filled with respectively fluorescent glue or casting glue in each reflection hole.The utility model luminescence chip is installed and is adopted separate type, demarcation strip is separated into some uniform reflection holes with bowl cup hole, luminescence chip independently is arranged in each reflection hole and encapsulates separately, avoided like this absorbing between the luminescence chip the each other interference of light-wave energy, reduced the junction temperature of chip, improved thermal diffusivity, so that white light light decay deviation is little, also avoid simultaneously fluorescent glue to the absorption of the energy of the luminescence chip light that need not the fluorescent glue encapsulation, improved light efficiency.Adopt dividing plate that setting is separated in bowl cup hole, so that each reflection hole distribution is compacter, greatly reduced the area of pedestal, so that the LED lamp body is long-pending less, has satisfied the higher LED display of pixel and made requirement.
As a kind of preferred version, described demarcation strip is separated into two reflection holes with bowl cup hole, described pin is provided with two, two pins reveal respectively to put in two reflection holes and form pad, described luminescence chip comprises the first luminescence chip and the second luminescence chip, and the first luminescence chip and the second luminescence chip are separately positioned on the pad of two reflection hole bottoms.This demarcation strip is yi word pattern, and is horizontal in the middle of bowl cup hole, and bowl cup hole is divided into monosymmetric reflection hole, so that reflection hole distributes compactlyer, conserve space has more reduced the volume of LED lamp like this.
As a kind of preferred version, in the reflection hole that is provided with the first luminescence chip, be filled with fluorescent glue, in being provided with the radiation hole of the second luminescence chip, be filled with casting glue.Mix forming white light behind the optical excitation fluorescent glue that the first luminescence chip sends, mix again forming the more white light of high color rendering index (CRI) with the second luminescence chip.
As a kind of preferred version, described the first luminescence chip is blue chip, and described the second luminescence chip is red light chips or gold-tinted chip.The second luminescence chip is red light chips or gold-tinted chip, and the fluorescent glue mixed light forms white light.
As a kind of preferred version, described fluorescent glue is the fluorescent glue that includes yellow fluorescent powder, and described casting glue is transparent epoxy resin.
As a kind of preferred version, the hole that bowl cup Kong Weisi bar arc-shaped side consists of.This is used for arranging luminescence chip so that the general circular port of bowl cup boring ratio wants large so that bowl cup hole can be separated out more reflection hole.
As a kind of preferred version, the face of described demarcation strip both sides is the inclined-plane.So that the reflection hole light extraction efficiency after separating is higher.
Therefore, the utility model advantage is: adopt separate type 1., avoided absorbing between the luminescence chip the each other interference of light-wave energy, reduced the junction temperature of chip, improved thermal diffusivity, so that white light light decay deviation is little, also avoided simultaneously fluorescent glue to the absorption of the energy of the luminescence chip light that need not the fluorescent glue encapsulation, improved light efficiency; 2. so that each reflection hole distribution is compacter, greatly reduced the area of pedestal, so that the LED lamp body is long-pending less, has satisfied the higher LED display of pixel and made requirement.
Description of drawings
Accompanying drawing 1 is the not front a kind of structural representation of sealing of the utility model;
Accompanying drawing 2 is a kind of structural representations after the utility model sealing.
1-pedestal 2-pin 3-bowl cup hole 4-demarcation strip 5-luminescence chip 6-fluorescent glue 7-casting glue 8-reflection hole 9-the first luminescence chip 10-the second luminescence chip.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
The white lamp of a kind of separate type tunable optical of the present embodiment patch SMD LED, as depicted in figs. 1 and 2, it includes a pedestal 1, this pedestal is made by the PPA material, be provided with bowl cup hole 3 in the middle of this pedestal upper surface, for area increased, this bowl cup hole is the hole body with four arc-shaped side structures.
Be provided with two pins 2 in pedestal, expose respectively in the pedestal both sides at these pin two ends, forms anodal pin and negative pole pin, and pin exposes on top, bottom, bowl cup hole and divides the pad that forms for luminescence chip 5 is installed.
Also be provided with the demarcation strip 4 of an in-line in bowl cup hole, this demarcation strip and pedestal are made into integration, and demarcation strip is divided into two symmetrical reflection holes 8 with bowl cup hole, and in order to improve light extraction efficiency, the demarcation strip both sides are designed to ramp structure.Article two, the pad of pin formation lays respectively at two reflection holes bottoms, luminescence chip comprises the first luminescence chip 9 and the second luminescence chip 10, this first luminescence chip is used for mixing the generation white light, the first luminescence chip is blue chip in the present embodiment, the second luminescence chip 10 is used for becoming with the white light colour mixture white light of high colour developing, the present embodiment adopts red light chips, two luminescence chips are separately positioned in two reflection holes, luminescence chip is anodal to be connected with the pin positive terminal, and the luminescence chip negative pole is connected on the negative pole end of pin by gold thread.Two luminescence chips form circuit in parallel, can regulate through the electric current of each luminescence chip, and this is so that the LED lamp can be realized the light modulation toning.
As shown in Figure 2, in being provided with the reflection hole of blue chip, be filled with fluorescent glue 6, this fluorescent glue is the fluorescent glue that contains yellow fluorescent powder.And in being provided with the reflection hole of red light chips, be filled with the casting glue 7 that is consisted of by transparent epoxy resin.Blue chip is exactly the yellow fluorescent powder generation mixed white light in the independent excitation fluorescent glue like this, and red chip realizes mixed light with white light after then seeing through transparent casting glue, obtains the white light of higher colour developing.In addition, this red chip can also change yellow chip into, and its effect also is the same.The present embodiment adopts separate type, avoided absorbing between the luminescence chip the each other interference of light-wave energy, reduced the junction temperature of chip, improved thermal diffusivity, so that white light light decay deviation is little, also avoid simultaneously fluorescent glue to the absorption of the energy of the luminescence chip light that need not the fluorescent glue encapsulation, improved light efficiency; 2. so that each reflection hole distribution is compacter, greatly reduced the area of pedestal, so that the LED lamp body is long-pending less, has satisfied the higher LED display of pixel and made requirement.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as pedestal, bowl cup hole, reflection hole, pin, demarcation strip, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. white lamp of separate type tunable optical patch SMD LED, comprise pedestal, be provided with bowl cup hole at pedestal upper surface, be provided with pin in the pedestal, be provided with some luminescence chips in bottom, bowl cup hole, it is characterized in that: be provided with demarcation strip (4) in described bowl cup hole (3), demarcation strip is separated into several reflection holes (8) with bowl cup hole, described luminescence chip is arranged on separately respectively in the reflection hole, is filled with respectively fluorescent glue (6) or casting glue (7) in each reflection hole.
2. the white lamp of separate type tunable optical patch SMD LED according to claim 1, it is characterized in that described demarcation strip (4) is separated into two reflection holes (8) with bowl cup hole (3), described pin is provided with two, two pins reveal respectively to put in two reflection holes and form pad, described luminescence chip comprises the first luminescence chip (9) and the second luminescence chip (10), and the first luminescence chip and the second luminescence chip are separately positioned on the pad of two reflection hole bottoms.
3. the white lamp of separate type tunable optical patch SMD LED according to claim 2, it is characterized in that in the reflection hole that is provided with the first luminescence chip (9) (8), being filled with fluorescent glue, in the reflection hole that is provided with the second luminescence chip (10) (8), be filled with casting glue.
4. according to claim 2 or the white lamp of 3 described separate type tunable optical patch SMD LED, it is characterized in that described the first luminescence chip (9) is blue chip, described the second luminescence chip (10) is red light chips or gold-tinted chip.
5. according to claim 1 and 2 or the white lamp of 3 described separate type tunable optical patch SMD LED, it is characterized in that described fluorescent glue (6) for including the fluorescent glue of yellow fluorescent powder, described casting glue (7) is transparent epoxy resin.
6. according to claim 1 and 2 or the white lamp of 3 described separate type tunable optical patch SMD LED, it is characterized in that the holes that four arc-shaped sides in position, bowl cup hole (3) consist of.
7. according to claim 2 or the white lamp of 3 described separate type tunable optical patch SMD LED, it is characterized in that the face of described demarcation strip (4) both sides is the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203065907U CN202678406U (en) | 2012-06-25 | 2012-06-25 | Split type dimmable SMD-LED incandescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203065907U CN202678406U (en) | 2012-06-25 | 2012-06-25 | Split type dimmable SMD-LED incandescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678406U true CN202678406U (en) | 2013-01-16 |
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ID=47499286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203065907U Expired - Lifetime CN202678406U (en) | 2012-06-25 | 2012-06-25 | Split type dimmable SMD-LED incandescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678406U (en) |
-
2012
- 2012-06-25 CN CN2012203065907U patent/CN202678406U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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| CX01 | Expiry of patent term |