CN207823219U - A kind of centrifuge for COB encapsulation - Google Patents
A kind of centrifuge for COB encapsulation Download PDFInfo
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- CN207823219U CN207823219U CN201721713296.7U CN201721713296U CN207823219U CN 207823219 U CN207823219 U CN 207823219U CN 201721713296 U CN201721713296 U CN 201721713296U CN 207823219 U CN207823219 U CN 207823219U
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- cob
- crossbeam
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- holding table
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Abstract
The utility model discloses a kind of centrifuges for COB encapsulation, including driving device, pedestal, spin axis frame, crossbeam, get rid of arm, articles holding table and material box；The driving device links with the spin axis frame；The lower end of the spin axis frame connects the pedestal, upper end connects the crossbeam, and described arm one end of getting rid of is hinged with the crossbeam, and the other end is connect with the articles holding table；The articles holding table is for fixing the material box, and the material box is for placing COB in flakes.Fluorescent powder is effectively equably fallen to COB substrates by this for the COB centrifugation functions encapsulated.
Description
Technical field
The utility model is related to COB encapsulation technologies fields, and in particular to a kind of centrifuge for COB encapsulation.
Background technology
(Chip On Board, volume is larger, the appearance and sizes such as generally 19mm × 19mm × 1.5mm, power by COB LED
In 10w or more) encapsulation of form is now more and more ripe, but application end also has increasingly higher demands to COB.Wherein, high
The requirement of power, high power density gradually becomes normality.It is conventional to put under powder technique with COB power, the raising of power density,
COB glue surface temperature is far above the junction temperature of LED, this is just that COB brings prodigious reliability hidden danger.In order to reduce glue surface temperature, industry
It has inside accepted through technology controlling and process and the fluorescent powder of LED is coated to can be effectively improved glue surface temperature close to chip excessively high
Problem.
May be implemented fluorescent powder being coated to effect close to LED chip by the way of centrifuging after dispensing, and take compared with
It is short.The centrifuge that has had is just like basket centrifuge shown in Fig. 1,2 at present, this centrifuge wait for centrifugal material in side and
When above, uncured fluorescent glue easily flows out；Horizontal rotating disc formula centrifuge as shown in Figure 3, the centrifuge of both types is
Through solution SMD LED (Surface Mounting Device, small volume, generally 3.5mm × 2.8mm that can be relatively good
The appearance and size of × 1.2mm, power 1w or less) fluorescent powder coating problem.But larger-size COB LED fluorescent powders are applied
It covers or helpless.In addition, the limitation of basket centrifuge cylinder sizes is very big, room for improvement is limited, it is also difficult to realize and criticize
Quantization production；And disk centrifuge structure is relative complex, the size limitation of radius of turn is also very big.Two kinds of centrifuges can not
Meet the needs of larger sized COB LED fluorescent powders coating.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model, which is to provide for one kind, so that fluorescent powder is uniformly sunk
The centrifuge for COB encapsulation in COB substrates drops.
The purpose of this utility model is realized using following technical scheme：
A kind of centrifuge for COB encapsulation, including driving device, pedestal, spin axis frame, crossbeam, get rid of arm, articles holding table and object
Magazine；Driving device links with spin axis frame；The lower end connect base of spin axis frame, upper end connecting cross beam get rid of arm one end and are cut with scissors with crossbeam
It connects, the other end is connect with articles holding table；Articles holding table is for fixing material box, and material box is for placing COB in flakes.
Further, the length of crossbeam is 0.1-1m；It gets rid of arm and gets rid of arm to be scalable.
Further, the Extensible ranging from 0.1-0.5m of arm is got rid of.
Further, articles holding table is hinged with arm is got rid of.
Further, top or articles holding table or crossbeam both ends are equipped with solidification equipment on spin axis frame.
Further, the quantity of crossbeam is 2 or more, and crossbeam is uniformly distributed relative to spin axis frame.
Further, crossbeam is equipped with balance element.
Further, balance element is the balance pipe for filling liquid and both ends sealing.
Further, articles holding table is additionally provided with for the fixed fixing piece of material box.
Further, if the card slot being clamped in flakes for COB equipped with dried layer in material box.
Compared with prior art, the beneficial effects of the utility model are：
Centrifuge provided by the utility model for COB encapsulation, by incrementally increasing the centrifugation component of horizontal direction, from
And make COB globally track risings in flakes, what fluorescent powder was unevenly distributed on COB substrates when effectively preventing horizontal centrifugal asks
Topic, also effectively prevents in vertical centrifugal process, and in same COB, above the unbalance stress of different COB units is caused into flakes
The low problem of product rate.
Description of the drawings
Fig. 1 is the effect schematic diagram of basket centrifuge；
Fig. 2 is the structural schematic diagram of basket centrifuge；
Fig. 3 is the structural schematic diagram of horizontal type centrifuger；
Fig. 4 is the structural schematic diagram of the utility model.
In figure, each reference numeral：1, pedestal；2, spin axis frame；3, crossbeam；4, arm is got rid of；5, articles holding table；6, material box；7、COB
In flakes；8, balance element.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further：
As shown in figure 4, the utility model provides a kind of centrifuge for COB encapsulation, including driving device, pedestal 1, rotation
Pedestal 2, crossbeam 3 get rid of arm 4, articles holding table 5 and material box 6；Driving device links with spin axis frame 2；The lower end of spin axis frame 2 connects bottom
Seat 1, upper end connecting cross beam 3 get rid of arm one end and are hinged with crossbeam 3, and the other end is connect with articles holding table 5；Articles holding table 5 is for fixing material
Box 6, material box 6 is for placing COB in flakes 7.
This is used for the centrifuge of COB encapsulation, COB connections is positioned over material box 6, then material box 6 is fixed on articles holding table
5, driving device drives spin axis frame 2 to rotate, and is rotated to make the drive of crossbeam 3 get rid of arm 4, the COB in articles holding table 5 in flakes 7 by
Under the double action of centrifugal force and gravity, in arc line type rise, to make the fluorescent powder being placed in uncured fluorescent glue by
Centrifugal force gradually increase, when speed is accelerated to when getting rid of arm 4 in horizontal position, fluorescent powder by very big centrifugal force, to
Make fluorescent powder rapid subsidence extremely to COB substrates.
This is used for centrifuge of COB encapsulation, because in 5 loading process of articles holding table, with the increase of centrifugal force, and in hanging down
Histogram to gravity collective effect in COB in flakes 7, fluorescent powder is distributed on COB substrates when to effectively prevent horizontal centrifugal
Uneven problem, also effectively prevents in vertical centrifugal process, and the stress of different COB units is not on same COB in flakes 7
The problem for causing yield rate low.
This is used for the centrifuge of COB encapsulation, and the quantity of crossbeam is 2 or more, and crossbeam is uniformly distributed relative to spin axis frame.I.e.
From the point of view of overlooking visual angle, crossbeam is in angularly to be distributed in the circular orbit of its operating.Specifically, when the quantity of crossbeam is 2
When, two crossbeams are in 180 ° of distributions, and when the quantity of crossbeam is 3, three crossbeams are mutually 120 °, when crossbeam quantity is 6,
6 crossbeams are mutually 60 ° of distributions.This for COB encapsulation centrifuge in crossbeam quantity, it is therefore preferable to 2 or 3 integer
Times.So that the crossbeam in operation process, keeps preferable stationarity.Centrifugation provided by the utility model for COB encapsulation
Machine can be adapted for the encapsulation of relatively large sized COB LED, have preferable application.
Centrifuge provided by the utility model for COB encapsulation, excellent it is suitable for COB LED move past the following institute of size
Show：The length of crossbeam 3 is 0.1-1m；It gets rid of arm 4 and gets rid of arm 4 to be scalable, get rid of the Extensible ranging from 0.1-0.5m of arm 4.
The utility model have studied the COB of different light-emitting surface diameters in flakes 7 with the relationship of centrifugation diameter and speed, as a result
As shown in the table：
I.e. centrifugation diameter=crossbeam 3 is grown+gets rid of the length of arm 4 × 2, i.e. 3 long D of crossbeam and the length relation for getting rid of 4 long L of arm meet following
Relational expression, 300mm≤D+2L≤1400mm.
Centrifuge provided by the utility model for COB encapsulation may be equipped with solidification equipment.I.e. at this for COB
The centrifuge high speed rotation of encapsulation 7 is heating and curing in flakes to COB to when getting rid of arm 4 in level.
The embodiment of solidification equipment is including but not limited to following two：
1) solidification equipment is infrared radiation solidification equipment, and installation position includes but not limited to 3 liang of top or crossbeam on pedestal 2
End or articles holding table 5；
2) solidification equipment is electrical heating type solidification equipment, and installation position is preferably 5 bottom of articles holding table.
Centrifuge provided by the utility model for COB encapsulation can improve the centrifuge by following approach
Stationarity is centrifuged, to improve the quality of COB encapsulation：
1) articles holding table 5 is hinged with arm 4 is got rid of, and spin axis frame 2 can be relative to the perpendicular rotation where crossbeam 3；That is COB is in flakes
7 are placed in material box 6, only where crossbeam 3 perpendicular and horizontal plane rotation, to not reduce COB in flakes 7 not
Regular motion makes fluorescent powder be distributed in fluorescent glue more uniformly；
2) a pair of of articles holding table 5 is axisymmetricly distributed relative to spin axis frame 2, is distributed using axisymmetric, and when centrifugation makes centrifugation
Machine operates steadily；
3) crossbeam 3 is equipped with balance element 8, uneven with the distribution of weight for adjusting 3 both ends of crossbeam, wherein balance element 8 it is specific
Mode includes but not limited to the balance pipe for filling liquid and both ends sealing；
4) articles holding table 5 is additionally provided with for 6 fixed fixing piece of material box, and the realization method of fixing piece includes but not limited to bottom surface
The modes such as bonding, elastic webbing binding.
The material box 6 of the utility model can be used accommodate multi-layer C OB in flakes 7 mode, if as material box 6 in equipped with dried layer
For COB in flakes 7 clamping card slot.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (10)
1. it is a kind of for COB encapsulation centrifuge, which is characterized in that including driving device, pedestal, spin axis frame, crossbeam, get rid of arm,
Articles holding table and material box；The driving device links with the spin axis frame；The lower end of the spin axis frame connects the pedestal, upper end
The crossbeam is connected, described arm one end of getting rid of is hinged with the crossbeam, and the other end is connect with the articles holding table；The articles holding table is used for
The fixed material box, the material box is for placing COB in flakes.
2. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that the length of the crossbeam is 0.1-
1m；The arm that gets rid of gets rid of arm to be scalable.
3. the centrifuge according to claim 2 for COB encapsulation, which is characterized in that the Extensible for getting rid of arm
Ranging from 0.1-0.5m.
4. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that the articles holding table gets rid of arm with described
It is hinged.
5. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that top or set on the spin axis frame
Object platform or the crossbeam both ends are equipped with solidification equipment.
6. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that the quantity of crossbeam is 2 or more,
Crossbeam is uniformly distributed relative to spin axis frame.
7. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that the crossbeam is equipped with balance element.
8. the centrifuge according to claim 7 for COB encapsulation, which is characterized in that the balance element is to fill liquid
And the balance pipe of both ends sealing.
9. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that the articles holding table is additionally provided with for institute
State the fixed fixing piece of material box.
10. the centrifuge according to claim 1 for COB encapsulation, which is characterized in that be equipped in the material box several
The card slot that layer is clamped in flakes for COB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713296.7U CN207823219U (en) | 2017-12-11 | 2017-12-11 | A kind of centrifuge for COB encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713296.7U CN207823219U (en) | 2017-12-11 | 2017-12-11 | A kind of centrifuge for COB encapsulation |
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| Publication Number | Publication Date |
|---|---|
| CN207823219U true CN207823219U (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721713296.7U Active CN207823219U (en) | 2017-12-11 | 2017-12-11 | A kind of centrifuge for COB encapsulation |
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| CN (1) | CN207823219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080155A (en) * | 2017-12-11 | 2018-05-29 | 广州硅能照明有限公司 | A centrifuge for COB encapsulation |
-
2017
- 2017-12-11 CN CN201721713296.7U patent/CN207823219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080155A (en) * | 2017-12-11 | 2018-05-29 | 广州硅能照明有限公司 | A centrifuge for COB encapsulation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 510000 Room 201, building A4, No. 11, Kaiyuan Avenue, Huangpu District, Guangzhou, Guangdong Patentee after: Silicon energy photoelectric semiconductor (Guangzhou) Co.,Ltd. Address before: 510530 second floor, building A4, No. 11, Kaiyuan Avenue, Science City, Guangzhou high tech Industrial Development Zone, Guangzhou, Guangdong Province Patentee before: GUANGZHOU LEDTEEN OPTOELECTRONICS Co.,Ltd. |
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| CP03 | Change of name, title or address |