CN208570651U - A kind of SMD white light lamp bead structure suitable for outdoor display screen - Google Patents
A kind of SMD white light lamp bead structure suitable for outdoor display screen Download PDFInfo
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- CN208570651U CN208570651U CN201820802078.9U CN201820802078U CN208570651U CN 208570651 U CN208570651 U CN 208570651U CN 201820802078 U CN201820802078 U CN 201820802078U CN 208570651 U CN208570651 U CN 208570651U
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Abstract
The utility model belongs to paster LED product technical field, a kind of SMD white light lamp bead structure suitable for outdoor display screen is specifically disclosed, including SMD bracket and the blue-light LED chip and fluorescent powder that are placed on SMD bracket, the SMD bracket is the frame structure that injection molding again is stretched through bending.The lamp bead is that will have the SMD bracket of high moisture energy to generate white light by blue chip excitated fluorescent powder, and realize that SMD white light lamp bead directly applies to the effect that outdoor display screen replaces straight cutting lamp bead with the mode that epoxy glue encapsulates, good illumination effect, and SMD miniaturized structure, it is able to achieve more densification when being assembled into screen body, is more advantageous to and realizes the lightening of outdoor display screen, while its heat dissipation area is big, good heat dissipation effect, long service life.
Description
Technical field
The utility model belongs to paster LED product technical field, in particular to is suitable for the SMD white light of outdoor display screen
Pearl structure is to push SMD white light to outdoor display screen field, for replacing traditional direct insertion white light product.
Background technique
In the prior art, the lamp bead or traditional straight cutting that white light led display screen uses, lamp bead as shown in Figure 1,
By direct insertion LED by injecting liquid-state epoxy resin in led shaping mold cavity, the good led bracket of pressure welding is then lunged, baking is put into
It is allowed in case after epoxy resin cure, led is detached to i.e. molding mode from die cavity and is encapsulated.
Direct insertion LED type difference, outer dimension is not also identical, and the white light led display screen is common as shown in Figure 1, Figure 2
The pin length L1 of 5 lamp bead bracket 1 ' of be generally 14mm, the long L2 of the crown top of burner is generally 4.8mm, width W1 is generally 3.45mm,
High H1 is generally 5.5mm.It by the bulky limitation of straight cutting lamp bead, is assembled into after display screen module, the thickness of mould group is general
Reach 22.5mm.
Common straight cutting lamp bead crown top of burner shape is oval dome, concave crown or flat-top at present, due to crown top of burner shape it is different most
The light emitting angle formed afterwards also can be variant, and if 5 lamp bead of on display screen is oval dome, light emitting angle is generally X-axis:
80 °, Y-axis: 30 °；Because therefore the difference of the direction lamp bead X/Y light emitting angle itself dresses up the left and right after screen body and up and down direction
There is also differences for visible angle.Additionally, due to the pin design of straight cutting lamp bead, attachment is at pin and PCB contact area after screen body
It is small, the case where can not shedding there are heat aggregation.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, disclose a kind of SMD for being applicable to outdoor display screen
White light lamp bead, the lamp bead are that will have the SMD bracket of high moisture energy to generate white light by blue chip excitated fluorescent powder, are used in combination
The mode of epoxy glue encapsulation realizes that SMD white light lamp bead directly applies to the effect that outdoor display screen replaces straight cutting lamp bead, illumination effect
Fruit is good, and SMD miniaturized structure, is able to achieve more densification when being assembled into screen body, is more advantageous to and realizes the light of outdoor display screen
Thinning, while its heat dissipation area is big, good heat dissipation effect, long service life.
In order to reach above-mentioned technical purpose, the utility model is realized by following technical scheme:
A kind of SMD white light lamp bead structure suitable for outdoor display screen described in the utility model, including SMD bracket and set
In blue-light LED chip and fluorescent powder on SMD bracket, the SMD bracket is the frame body knot that injection molding again is stretched through bending
Structure.
As the further improvement of above-mentioned technology, the SMD bracket is the lid cap-shaped structure of bending.
As the further improvement of above-mentioned technology, the SMD bracket is to be pasted by its positive and negative pin and PCB by tin cream
It closes, the positive and negative pin of the SMD bracket is distributed in frame bottom two sides.
Specifically, tin face length >=1.5mm, width >=0.4mm on the positive and negative pin.
In the present invention, tensile elongation >=0.5mm of the SMD bracket.
In the present invention, the SMD stent-type is by low light attenuation epoxy glue package, then fluorescent powder is mixed low light
The injection intracavitary baking molding of SMD carrier cup forms after the epoxy glue that declines stirring.
Compared with prior art, the utility model has the beneficial effects that
(1) open air SMD white light lamp bead described in the utility model, heat dissipation area is big, good heat dissipation effect；
(2) open air SMD white light lamp bead described in the utility model, by being designed using Dampproof SMD bracket, collocation
Low light attenuation epoxy glue is packaged, and realizes SMD white light finally for outdoor white light display screen effect, while low light attenuation epoxy
For glue compared to silica gel, the lower oxygen flow penetrability of low light attenuation epoxy glue more can guarantee that SMD lamp bead uses the property in environment outdoors
It can require.
(3) open air SMD white light lamp bead described in the utility model, due to the inclined-plane of wall of cup in the packing forms of SMD bracket
Or the light of the intracavitary sending of cambered surface energy reflector, the light concentration degree for the light that blue-light LED chip is issued can be increased, to increase
The light emitting angle of LED encapsulation, the light emitting angle of lamp bead become larger, and the visible angle for being assembled into display screen is wider therewith, this is practical new
The X-axis and Y-axis light emitting angle for the SMD white light that type is related to are 110 ° ± 10.
(4) open air SMD white light lamp bead described in the utility model is assembled into screen body due to the diminution of SMD structure size
Density is able to achieve more crypto set, is more advantageous to and realizes the lightening of screen body；It is much higher than simultaneously using the patch efficiency at end, SMD
The attachment efficiency of straight cutting, and it is more advantageous on production cost, it is suitable for large-scale promotion application.
Detailed description of the invention
The utility model is described in detail in the following with reference to the drawings and specific embodiments:
Fig. 1 is the structural schematic diagram one of existing traditional direct insertion 5 lamp bead；
Fig. 2 is the structural schematic diagram two of existing traditional direct insertion 5 lamp bead；
Fig. 3 is SMD white light lamp bead structural schematic diagram one described in the utility model；
Fig. 4 is SMD white light lamp bead structural schematic diagram two described in the utility model.
Specific embodiment
A kind of SMD white light lamp bead structure suitable for outdoor display screen described in the utility model, as shown in Figure 3, Figure 4,
Including SMD bracket 1 and the blue-light LED chip being placed on SMD bracket 12 and fluorescent powder 3, the SMD bracket 1 is to be drawn by bending
The frame structure of injection molding again is stretched, specifically, the SMD bracket 1 is the lid cap-shaped structure of bending.When installation, the SMD
Bracket 1 is bonded with PCB by tin cream by its positive and negative pin, and the positive and negative pin 11 of the SMD bracket 1 is distributed in frame bottom
Two sides, and on the positive and negative pin 11 tin face length >=1.5mm, width >=10.4mm.
In the present invention, tensile elongation >=0.5mm of the SMD bracket 1.
The specific installation process of the SMD bracket 1 is as follows:
(1) firstly, the SMD bracket 1 is passed through low light attenuation epoxy glue package；
(2) then, then fluorescent powder 3 is mixed low light attenuation epoxy glue to be stirred, it is intracavitary that SMD carrier cup is injected after stirring
Baking molding forms.
The utility model is not limited to above embodiment, and all various changes or modifications to the utility model do not take off
Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model
Within the scope of, then the utility model is also implied that comprising these modification and variations.
Claims (6)
1. a kind of SMD white light lamp bead structure suitable for outdoor display screen, it is characterised in that: including SMD bracket and be placed in SMD branch
Blue-light LED chip and fluorescent powder on frame, the SMD bracket are the frame structure that injection molding again is stretched through bending.
2. the SMD white light lamp bead structure according to claim 1 suitable for outdoor display screen, it is characterised in that: the SMD
Bracket is the lid cap-shaped structure of bending.
3. the SMD white light lamp bead structure according to claim 2 suitable for outdoor display screen, it is characterised in that: the SMD
Bracket is to be bonded with PCB by tin cream by its positive and negative pin, and the positive and negative pin of the SMD bracket is distributed in frame bottom two
Side.
4. the SMD white light lamp bead structure according to claim 3 suitable for outdoor display screen, it is characterised in that: it is described just
Tin face length >=1.5mm, width >=0.4mm on negative pin.
5. the SMD white light lamp bead structure according to claim 3 suitable for outdoor display screen, it is characterised in that: the SMD
Tensile elongation >=0.5mm of bracket.
6. the SMD white light lamp bead structure according to claim 1 suitable for outdoor display screen, it is characterised in that: the SMD
Stent-type is by low light attenuation epoxy glue package, then will inject SMD carrier cup after the stirring of fluorescent powder mixing low light attenuation epoxy glue
Intracavitary baking molding forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802078.9U CN208570651U (en) | 2018-05-28 | 2018-05-28 | A kind of SMD white light lamp bead structure suitable for outdoor display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802078.9U CN208570651U (en) | 2018-05-28 | 2018-05-28 | A kind of SMD white light lamp bead structure suitable for outdoor display screen |
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| Publication Number | Publication Date |
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| CN208570651U true CN208570651U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820802078.9U Active CN208570651U (en) | 2018-05-28 | 2018-05-28 | A kind of SMD white light lamp bead structure suitable for outdoor display screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085725A (en) * | 2019-04-18 | 2019-08-02 | 惠州市长方照明节能科技有限公司 | A kind of color-adjustable LED stretching bracket |
| CN110429171A (en) * | 2019-07-03 | 2019-11-08 | 惠州市长方照明节能科技有限公司 | A kind of ultimate elongation improvement heat transfer bracket |
-
2018
- 2018-05-28 CN CN201820802078.9U patent/CN208570651U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085725A (en) * | 2019-04-18 | 2019-08-02 | 惠州市长方照明节能科技有限公司 | A kind of color-adjustable LED stretching bracket |
| CN110429171A (en) * | 2019-07-03 | 2019-11-08 | 惠州市长方照明节能科技有限公司 | A kind of ultimate elongation improvement heat transfer bracket |
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