CN207664031U - The brush coating device of diode chip for backlight unit - Google Patents
The brush coating device of diode chip for backlight unit Download PDFInfo
- Publication number
- CN207664031U CN207664031U CN201721858042.4U CN201721858042U CN207664031U CN 207664031 U CN207664031 U CN 207664031U CN 201721858042 U CN201721858042 U CN 201721858042U CN 207664031 U CN207664031 U CN 207664031U
- Authority
- CN
- China
- Prior art keywords
- hole
- brush coating
- steel mesh
- graphite boat
- backlight unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 40
- 239000011248 coating agent Substances 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 37
- 239000010439 graphite Substances 0.000 claims abstract description 37
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000006071 cream Substances 0.000 claims abstract description 22
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Abstract
The utility model is related to a kind of brush coating devices of diode chip for backlight unit.The brush coating device of the diode chip for backlight unit includes graphite boat and steel mesh, the surface of the graphite boat and the bottom surface of the steel mesh fit, the surface of the graphite boat is equipped with locating piece, the quantity of the locating piece is at least provided with one, the locating piece includes locating shaft, left through-hole and the right through-hole being located in same horizontal line, the left through-hole and right through-hole are respectively arranged at the both sides of the locating shaft, there are three the quantity of the locating shaft is set and three locating shafts are placed equidistant with, and the locating shaft is vertically installed on the graphite boat；The steel mesh is equipped with relief hole and brush coating hole, and the brush coating hole is set to the lower section of the relief hole, and the relief hole is between the locating shaft and the right through-hole.The utility model has the features such as simple in structure, easy to operate, lower tin cream amount is uniform, guarantee product dispensing amount consistency.
Description
Technical field
The utility model belongs to diode technical field of processing equipment, and in particular to a kind of brush coating dress of diode chip for backlight unit
It sets.
Background technology
The general welding that can be all related to chip, pin etc. in the encapsulation process of diode, in welding procedure, lower tin
Cream mostly uses gluing process, and operation is more convenient, but this technique is easy to be influenced by external environment, as ambient air temperature,
The tin cream amount that the variation of plastic squeeze air pressure etc. all be easy to cause pad is uneven, and puts down tin cream and be generally cone, detects glue
Dispensing range size can only be measured when amount, and is unable to measure height, therefore cannot be guaranteed the consistency of produced product dispensing amount,
Welding quality is influenced, to influence the use of final products.
Utility model content
It is for overcome the deficiencies in the prior art, easy to operate the purpose of this utility model is to provide a kind of simple in structure,
Lower tin cream amount is uniform, ensures the brush coating device of the diode chip for backlight unit of product dispensing amount consistency.
To solve the above problems, technical solution used by the utility model is as follows：
A kind of brush coating device of diode chip for backlight unit, including graphite boat and steel mesh, the surface of the graphite boat and the steel mesh
Bottom surface fit, the surface of the graphite boat is equipped with locating piece, and the quantity of the locating piece is described fixed at least provided with one
Position part includes locating shaft, left through-hole and the right through-hole being located in same horizontal line, and the left through-hole and right through-hole are respectively arranged at
The both sides of the locating shaft, the quantity of the locating shaft set there are three and three locating shafts be placed equidistant with, the positioning
Axis is vertically installed on the graphite boat；The steel mesh is equipped with relief hole and brush coating hole, and the brush coating hole is set to described
The lower section of relief hole, the relief hole is between the locating shaft and the right through-hole.
Further, the right through-hole is made of two connected big holes and small sircle hole, the diameter of the big hole with
The diameter of the left through-hole is identical.
Further, the quantity of the relief hole is consistent with the quantity of the locating shaft, and the quantity in the brush coating hole is set as
It is multiple.
Further, the steel mesh is Rectangular Plate Structure, the area of the steel mesh than the graphite boat area greatly simultaneously
And four sides of the steel mesh are equipped with aluminum alloy frame, the frame is circular tube structure.
Further, the opposite sides on the surface of the graphite boat is equipped with mounting hole, and the bottom of the steel mesh is equipped with and consolidates
Determine the corresponding fixed link in hole site, the mounting hole is for housing the fixed link.
Further, the diameter in the brush coating hole is bigger 0.05mm-0.1mm than the diameter of tin cream slot on diode chip for backlight unit.
Further, the steel mesh and the frame are an integral molding structure.
Compared with prior art, the beneficial effects of the utility model are：Multiple locating pieces can be set on graphite boat, carry core
The lower tablet of piece is placed on graphite boat and is fixed by locating piece, steel mesh is then pressed in blanking on piece so that on steel mesh
Brush coating hole aligned with core on piece tin cream slot, then again on the surface of steel mesh with brush board brush tin cream, tin cream by brush coating hole into
Enter in the tin cream slot of chip, dispensing is completed.The present apparatus can carry out dispensing in batches, greatly improve work efficiency, and structure letter
List, easy to use, the tin cream amount uniformity in the tin cream slot on each chip, the welding effect after ensure that and product matter
Amount.
Description of the drawings
Fig. 1 is the structural schematic diagram of graphite boat in the utility model；
Fig. 2 is the structural schematic diagram of steel mesh in the utility model；
Fig. 3 is the upward view of Fig. 2；
Fig. 4 is the structural schematic diagram that lower tablet is mounted on graphite boat；
Fig. 5 is that steel mesh is placed on the structural schematic diagram on graphite boat in the utility model；
In attached drawing, 1 is graphite boat, and 2 be steel mesh, and 21 be relief hole, and 22 be brush coating hole, and 23 be frame, and 3 be locating piece, 31
It is left through-hole for locating shaft, 32,33 be right through-hole, and 331 be big hole, and 332 be small sircle hole, and 4 be mounting hole, and 5 be fixed link.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Such as Fig. 1 to Fig. 5, a kind of brush coating device of diode chip for backlight unit, including graphite boat 1 and steel mesh 2, the graphite boat 1
Surface and the bottom surface of the steel mesh 2 fit, and the surface of the graphite boat 1 is equipped with 7 locating pieces 3, and a locating piece 3 is installed
One lower tablet can place 7 lower tablets on such a graphite boat 1, improve working efficiency, and each locating piece 3 includes position
In locating shaft 31, left through-hole 32 and right through-hole 33 in same horizontal line, the left through-hole 32 and right through-hole 33 are respectively arranged at
The both sides of the locating shaft 31, the quantity of the locating shaft 31 in every group of locating piece 3 set there are three and three positioning
Axis 31 is placed equidistant with, and the locating shaft 31 is vertically installed on the graphite boat 1；The steel mesh 2 is equipped with 21 He of relief hole
Brush coating hole 22, the brush coating hole 22 are set to the lower section of the relief hole 21, and the relief hole 21 is located at 31 He of the locating shaft
Between the right through-hole 33, lower tablet is fixed on by locating shaft 31 on graphite boat 1, such as blanking on piece has many positioning
Hole is connected by location hole with locating shaft 31, and lower tablet would not move, to the accuracy of brush coating, and after the completion of brush coating,
Be inserted into left through-hole 32 or right through-hole 33, lower tablet can be jacked up from the back side of graphite boat 1 by a bat, make lower tablet with
Graphite boat 1 detaches, simple in structure, and feeding is convenient.
The right through-hole 33 is made of two connected big holes 331 and small sircle hole 331, the diameter of the big hole 331
Identical as the diameter of the left through-hole 32, lower tablet has many holes corresponding with 331 position of small sircle hole, by this some holes and
Small sircle hole 331 can finely tune the position of lower tablet, to ensure final brush coating effect.
The quantity of the relief hole 21 is consistent with the quantity of the locating shaft 31, and locating shaft 31 has 21 in the present embodiment,
So the quantity of relief hole 21 is also 21, after steel mesh 2 is placed on graphite boat 1, relief hole 21 is located in 31 He of locating shaft
Between big hole 331, relief hole 21 can prevent being pressed on graphite boat 1 of steel mesh tension so that lower tablet damage, the brush coating hole
22 quantity is identical as the quantity of tin cream slot on graphite boat 1.
The steel mesh 2 is Rectangular Plate Structure, and the area of the steel mesh 2 is bigger than the area of the graphite boat 1 and described
Four sides of steel mesh 2 are equipped with aluminum alloy frame 23, and the frame 23 is that circular tube structure is taken by 23 steel mesh easy to operation of frame
It takes conveniently.
The opposite sides on the surface of the graphite boat 1 is equipped with mounting hole 4, and the bottom of the steel mesh 2 is equipped with and mounting hole 4
Corresponding fixed link 5 is set, the mounting hole 4 is for housing the fixed link 5, after being inserted into mounting hole 4 by fixed link 5,
Steel mesh 2 is just fixed, and can not be moved, and brush coating hole 22 and tin cream slot face at this time, ensure that the accuracy of brush coating.
The diameter in the brush coating hole 22 is bigger 0.05mm-0.1mm than the diameter of tin cream slot on diode chip for backlight unit, for example, this reality
Apply a diameter of 0.43mm of tin cream slot in a chips, and a diameter of 0.5mm in brush coating hole 22.
The steel mesh 2 and the frame 23 are an integral molding structure, simple in structure, securely.
Specifically, multiple lower tablets are placed on graphite boat and are fixed, the location hole set of the blanking on piece with chip
On locating shaft, then steel mesh is placed on the surface of graphite boat to and is pushed down lower tablet, fixed link is packed into mounting hole, brushes at this time
Glue hole is targeted by the tin cream slot on chip, and then tin cream is poured on the surface of steel mesh, with scraper drawout and makes all brush coatings
Tin cream is filled up in hole.Brush coating just completes in this way.The present apparatus can carry out dispensing in batches, greatly improve work efficiency, Er Qiejie
Structure is simple, easy to use, the tin cream amount uniformity in the tin cream slot on each chip, the welding effect after ensure that and production
Quality.
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 (7)
1. a kind of brush coating device of diode chip for backlight unit, it is characterised in that：Including graphite boat and steel mesh, the surface of the graphite boat with
The bottom surface of the steel mesh fits, and the surface of the graphite boat is equipped with locating piece, and the quantity of the locating piece is at least provided with one
A, the locating piece includes locating shaft, left through-hole and the right through-hole being located in same horizontal line, the left through-hole and right through-hole point
Be not set to the both sides of the locating shaft, the quantity of the locating shaft set there are three and three locating shafts be placed equidistant with,
The locating shaft is vertically installed on the graphite boat；The steel mesh is equipped with relief hole and brush coating hole, and the brush coating hole is set
It is placed in the lower section of the relief hole, the relief hole is between the locating shaft and the right through-hole.
2. the brush coating device of diode chip for backlight unit according to claim 1, it is characterised in that：The right through-hole is connected by two
Big hole and small sircle hole constitute, the diameter of the big hole is identical as the diameter of left through-hole.
3. the brush coating device of diode chip for backlight unit according to claim 1, it is characterised in that：The quantity of the relief hole and institute
The quantity for stating locating shaft is consistent, and the quantity in the brush coating hole is set as multiple.
4. the brush coating device of diode chip for backlight unit according to claim 1, it is characterised in that：The steel mesh is that rectangle is hardened
The area of structure, the steel mesh is bigger than the area of the graphite boat and four sides of the steel mesh are equipped with aluminum alloy frame, described
Frame is circular tube structure.
5. the brush coating device of diode chip for backlight unit according to claim 4, it is characterised in that：The phase on the surface of the graphite boat
Mounting hole is equipped with to both sides, the bottom of the steel mesh is equipped with fixed link corresponding with mounting hole position, and the mounting hole is used for
House the fixed link.
6. the brush coating device of diode chip for backlight unit according to claim 1, it is characterised in that：The diameter in the brush coating hole is than two
The big 0.05mm-0.1mm of the diameter of tin cream slot on pole pipe chip.
7. the brush coating device of diode chip for backlight unit according to claim 4, it is characterised in that：The steel mesh and the frame are
Integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858042.4U CN207664031U (en) | 2017-12-26 | 2017-12-26 | The brush coating device of diode chip for backlight unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858042.4U CN207664031U (en) | 2017-12-26 | 2017-12-26 | The brush coating device of diode chip for backlight unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664031U true CN207664031U (en) | 2018-07-27 |
Family
ID=62943475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721858042.4U Expired - Fee Related CN207664031U (en) | 2017-12-26 | 2017-12-26 | The brush coating device of diode chip for backlight unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262104A (en) * | 2018-11-19 | 2019-01-25 | 苏州安洁科技股份有限公司 | A kind of method that print solder paste back nut is accurately positioned |
-
2017
- 2017-12-26 CN CN201721858042.4U patent/CN207664031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262104A (en) * | 2018-11-19 | 2019-01-25 | 苏州安洁科技股份有限公司 | A kind of method that print solder paste back nut is accurately positioned |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |