CN209183572U - A kind of LED light source - Google Patents
A kind of LED light source Download PDFInfo
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- CN209183572U CN209183572U CN201821880836.5U CN201821880836U CN209183572U CN 209183572 U CN209183572 U CN 209183572U CN 201821880836 U CN201821880836 U CN 201821880836U CN 209183572 U CN209183572 U CN 209183572U
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- light source
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Abstract
The utility model provides a kind of LED light source, including substrate, fixed multiple LED chips on the substrate, LED chip is fixedly connected with substrate by crystal-bonding adhesive, the fixed LED chip of substrate be coated with front colloid on one side, another side is coated with reverse side colloid, mixed with red fluorescence powder in crystal-bonding adhesive, mixed with green emitting phosphor in the colloid of front.Using this new structure, LED light source has greatly improved on luminous flux, light efficiency and lux maintenance.
Description
Technical field
The utility model relates to LED technology fields, more particularly to a kind of LED light source.
Technical background
With the fast development of illuminating industry, the advantage of LED light source is gradually exploited.
The principle of luminosity of LED light source is that the blue light that LED chip issues excites red green fluorescence powder respectively, generates feux rouges and green
Light, then with remaining blue light at white light.LED light source red fluorescence powder during lighting is easy to be excited by green light,
It on the one hand is because the blue light that LED chip issues excites red green fluorescence powder respectively, red fluorescence powder can be green in this process
Light excitation, reduces the transformation efficiency of the blue light of chip, reduces the luminous efficiency of filament.On the other hand, the bubble of LED light source
Shell, especially milky white bubble, part green light also can excitated red fluorescent powder, reduce the luminous efficiency of filament.Institute to avoid or subtract
Few green light excitated red fluorescent powder in luminescence process, can greatly improve the brightness of LED light source.LED light source due to weak heat-dissipating,
Light decay is serious, and lux maintenance is poor.Filament weak heat-dissipating and at high cost is solved the problems, such as on the basis of existing technology, and is improved
The brightness of LED light source, the light decay for reducing LED light source is now very urgent problem.
Utility model content
To solve the above-mentioned problems, the present invention provides the LED light source that a kind of manufacture craft is simple, at low cost.This is practical new
Type uses following technical scheme:
A kind of LED light source, including substrate, fixed multiple LED chips on the substrate, it is characterised in that: the LED
Chip is fixedly connected with the substrate by crystal-bonding adhesive, and the fixed LED chip of the substrate is coated with front colloid, another side on one side
Reverse side colloid is coated with, mixed with red fluorescence powder in the crystal-bonding adhesive, mixed with green emitting phosphor in the front colloid.
Preferably, the reverse side colloid is silica gel.
Preferably, the reverse side colloid is to add the silica gel for having green emitting phosphor.
The beneficial effects of the utility model are: the LED light source that the utility model uses is in the logical maintenance of luminous flux, light efficiency and light
Have greatly improved in rate, colour rendering index is also improved largely.Red fluorescence powder and green in the LED light source of the utility model
Fluorescent powder is respectively on the two sides of LED chip.Red fluorescence powder is added in crystal-bonding adhesive, then normal die bond bonding wire.Seal LED light source
When positive, green emitting phosphor is only added in silica gel, respectively on the two sides of chip, chip blue light is exciting red green fluorescence powder
Conversion ratio improves when fluorescent powder, reduces excitation of the green light to red fluorescence powder.Largely improve filament luminous flux and
Light efficiency reduces the generation of heat, while colour rendering index also will increase.Reverse side point reverse side colloid, can increase LED light source in this way
Lux maintenance.Present embodiments can apply in the LED light sources such as LED filament, COB light source, CSP light source and patch lamp bead.
Detailed description of the invention
Fig. 1 is one main view of the utility model embodiment
Fig. 2 is that the utility model embodiment one completes the top view after die bond step
Fig. 3 is one structural schematic diagram of the utility model embodiment
Fig. 4 is one cross-sectional view of the utility model embodiment
Fig. 5 is two top view of the utility model embodiment
Fig. 6 is two cross section structure schematic diagram of the utility model embodiment
Figure number explanation: 1, substrate；2, LED chip；3, pin terminals；4, crystal-bonding adhesive；5, front colloid；6, reverse side colloid；
7, bonding wire；8, box dam glue.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown, LED light source in the present embodiment is LED filament, including substrate 1, fixed on substrate 1 multiple
LED chip 2,1 both ends of substrate are equipped with pin terminals 3, and LED chip 2 is fixedly connected with substrate 1 by crystal-bonding adhesive 4, and substrate 1 is fixed
LED chip 2 is coated with front colloid 5 on one side, and another side is coated with reverse side colloid 6, mixed with red fluorescence powder, front in crystal-bonding adhesive 4
Mixed with green emitting phosphor in colloid 5, reverse side colloid 6 is the silica gel mixed with green emitting phosphor, and bonding wire 7 connects each LED chip.
Embodiment two
As shown, LED light source in the present embodiment is COB light source, including substrate 1, fixed on substrate 1 multiple
LED chip 2, LED chip 2 are fixedly connected with substrate 1 by crystal-bonding adhesive 4, and the fixed LED chip 2 of substrate 1 is coated with a corral on one side
Dam glue 8, box dam glue 8 are coated with front colloid 5 in the range of surrounding, and mixed with red fluorescence powder in crystal-bonding adhesive 4, mix in front colloid 5
There is green emitting phosphor, bonding wire 7 connects each LED chip.
Shown in above implementation explanation and attached drawing, it is one of the utility model preferred embodiment, this reality is not limited to this
With novel, therefore such as approximate with the construction of the utility model, device, feature etc., identical person, should all belong to the utility model
It founds within purpose and claim.
Claims (4)
1. a kind of LED light source, including substrate (1), the multiple LED chips (2) being fixed on the substrate (1), it is characterised in that:
The LED chip (2) is fixedly connected with the substrate (1) by crystal-bonding adhesive (4), the substrate (1) fixed LED chip (2)
It is coated on one side front colloid (5), it is glimmering mixed with green in the front colloid (5) mixed with red fluorescence powder in the crystal-bonding adhesive (4)
Light powder.
2. LED light source as described in claim 1, it is characterised in that: another side is coated with reverse side colloid (6).
3. LED light source as claimed in claim 2, it is characterised in that: the reverse side colloid (6) is silica gel.
4. LED light source as claimed in claim 2, it is characterised in that: the reverse side colloid (6) is to add to have green emitting phosphor
Silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821880836.5U CN209183572U (en) | 2018-11-15 | 2018-11-15 | A kind of LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821880836.5U CN209183572U (en) | 2018-11-15 | 2018-11-15 | A kind of LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209183572U true CN209183572U (en) | 2019-07-30 |
Family
ID=67364416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821880836.5U Active CN209183572U (en) | 2018-11-15 | 2018-11-15 | A kind of LED light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209183572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713106A (en) * | 2018-11-15 | 2019-05-03 | 浙江英特来光电科技有限公司 | A kind of LED light source and its dispensing method |
-
2018
- 2018-11-15 CN CN201821880836.5U patent/CN209183572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713106A (en) * | 2018-11-15 | 2019-05-03 | 浙江英特来光电科技有限公司 | A kind of LED light source and its dispensing method |
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