CN109732173A - A kind of contact pin welding tooling and contact pin fixing means - Google Patents
A kind of contact pin welding tooling and contact pin fixing means Download PDFInfo
- Publication number
- CN109732173A CN109732173A CN201910185015.2A CN201910185015A CN109732173A CN 109732173 A CN109732173 A CN 109732173A CN 201910185015 A CN201910185015 A CN 201910185015A CN 109732173 A CN109732173 A CN 109732173A
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- contact pin
- elastomer
- base portion
- groove
- orientation angle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention relates to a kind of contact pin welding tooling and contact pin fixing means, base portion upper end forms fluted, the cooperation of gland portion is formed with several location holes up and down on the top of base portion, gland portion, and location hole is covered on the top of groove behind gland portion and base portion cooperation；Gland portion is configured with elastomer, elastomer is for contact pin to be fixed according to the layout of location hole, elastomer carry it is fixed after contact pin protrude into the ceramic copper-clad plate that groove contact is placed in groove and welded ceramic copper-clad plate to be welded is previously positioned in the bottom-plate body groove of base portion, ceramic copper-clad plate is positioned by interior orientation angle；Gland portion is upsided down the top for being placed on elastomer；The location hole that contact pin is sequentially passed through to gland portion is inserted into the end of contact pin inside elastomer；The contact pin after fixing is carried by elastomer and protrudes into the ceramic copper-clad plate that groove contact is placed in groove, and gland portion is fixed in base portion by outer orientation angle.Welding effect is good, firm welding.
Description
Technical field
The present invention relates to a kind of contact pin welding tooling and contact pin fixing means, belong to welding processing technical field.
Background technique
IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor is (double by BJT
Polar form triode) and MOS (insulating gate type field effect tube) composition compound full-control type voltage driven type power semiconductor.It inserts
Needle plays the role of drawing electrode signal in IGBT encapsulation, therefore the weld strength between contact pin and ceramic copper-clad plate DBC
Become an important indicator of assessment IGBT module performance with quality.Contact pin welding process is by paste solder printing in DBC substrate
On pad, then contact pin is fixed, finally enters in reflow ovens and is welded, welding quality can directly affect the heat dissipation of product
Property and thermal fatigue resistance.
In conventional solution, contact pin in welding process is well fixed be always make us it is worried, since contact pin needs
It passing through from the bottom of top cover, the two is placed on DBC substrate from bottom to top then, contact pin is easy to fall in the process, and one
People also use kinds of processes method to improve since straight, but effect is not apparent.Usual way is first to place DBC
It is placed on welding pedestal together in contact pin bottom, then by top cover, contact pin and DBC substrate, such method, difficulty hand-manipulated
Greatly, it and is easy to touch bonding wire, causes module bad.
Summary of the invention
It is an object of that present invention to provide a kind of contact pin welding tooling and contact pin fixing means, realize contact pin and ceramic copper-clad plate
Close connection after being welded by tin cream, welding effect is good, firm welding, it is therefore prevented that contact pin and ceramic copper-clad plate hold after welding
The phenomenon that easily loosening, it is ensured that the fastness of Product jointing.
The technical scheme to solve the above technical problems is that a kind of contact pin welding tooling, the fixation for contact pin
Welding, including base portion and gland portion, the base portion upper end form fluted, and the gland portion cooperation is in the base portion
Top is formed with several location holes up and down in gland portion, and the location hole is behind the gland portion and base portion cooperation
It is covered on the top of groove；
The gland portion is configured with elastomer, the elastomer be used for by the contact pin according to the layout of the location hole into
Row is fixed, and the contact pin that elastomer carries after fixing protrudes into the groove and contacts the ceramic copper-clad plate being placed in groove, is pulled out
It is welded after elastomer.
As the preferred embodiment of contact pin welding tooling, the base portion includes bottom-plate body, Bian Ti, interior orientation angle and outer positioning
Angle, the bottom-plate body are formed in the bottom of the base portion, and the top of bottom-plate body forms the groove；The side body is located at described
The edge of groove, side body are extended to form upwards by the bottom-plate body；The edge of the groove is arranged in the interior orientation angle, interior
Orientation angle is located at the inside of the side body, is equipped with the first arc notch at interior orientation angle；The outer orientation angle is arranged described interior
The outside of orientation angle, outer orientation angle are located at the edge of the side body.
As the preferred embodiment of contact pin welding tooling, the gland portion includes top plate body, and the edge of the top plate body is inside
Side is recessed to form the second arc notch；The location hole is evenly distributed on the top plate body.
As the preferred embodiment of contact pin welding tooling, the aperture of the location hole is greater than the pin diameter at least 0.2mm.
As the preferred embodiment of contact pin welding tooling, several base portion integral types are arranged with the layout of m × n,
M, n is natural number, and each base portion configures a gland portion.
As the preferred embodiment of contact pin welding tooling, the elastomer uses thermoplastic elastomer (TPE) TPE/TPR.
The embodiment of the present invention also provides a kind of contact pin fixing means, based on above-mentioned welding tooling, comprising the following steps:
Ceramic copper-clad plate to be welded is previously positioned in the bottom-plate body groove of base portion, ceramic copper-clad plate passes through default
Parallactic angle is positioned；
Gland portion is upsided down the top for being placed on elastomer；
The location hole that contact pin is sequentially passed through to gland portion is inserted into the end of contact pin inside elastomer；
The contact pin after fixing, which is carried, by elastomer protrudes into the ceramic copper-clad plate that the groove contact is placed in groove, gland
Portion is fixed in base portion by outer orientation angle；
After pulling out elastomer, contact pin welding is carried out.
As the preferred embodiment of contact pin fixing means, after gland portion is fixed on base portion by outer orientation angle, contact pin and pottery
Porcelain copper-clad plate is in contact impaction state.
As the preferred embodiment of contact pin fixing means, before contact pin welding, pulls out the elastomer and reuse.
The beneficial effects of the present invention are: welding tooling is fixed by elastomer contact pin according to the layout of location hole, bullet
Property body carry it is fixed after contact pin protrude into the ceramic copper-clad plate that groove contact is placed in groove and welded, it is outer fixed that gland portion passes through
After parallactic angle is fixed on base portion, contact pin and ceramic copper-clad plate are in contact impaction state, and contact pin and ceramic copper-clad plate is made to pass through tin
Close connection is realized after cream welding, it is therefore prevented that the phenomenon that contact pin and ceramic copper-clad plate are easy to appear loosening after welding ensures
Product jointing is secured, high-quality and yields is high.Welding tooling can also be sized to m × n times according to soldering furnace size
Column, can placement module quantity it is flexible and changeable, increase space utilization rate, the location hole in gland portion can realize the quantity of contact pin
More, density is high, while the contact pin that can also be arranged according to different flexible designs.Contact pin fixing means through the embodiment of the present invention,
It solves in traditional-handwork operating process that contact pin is easy the phenomenon that falling, while also can avoid touching ceramic copper-clad plate, reduce
Material loss rate, improves yields and production efficiency.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Fig. 1 is contact pin welding tooling structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is contact pin welding tooling base portion structural schematic diagram provided in an embodiment of the present invention；
Fig. 3 is contact pin welding tooling gland portion provided in an embodiment of the present invention structural schematic diagram；
Fig. 4 is the combining structure schematic diagram of contact pin provided in an embodiment of the present invention, elastomer and gland portion；
Fig. 5 is contact pin fixing means flow diagram provided in an embodiment of the present invention；
In figure, 1, base portion；101, groove；102, bottom-plate body；103, Bian Ti；104, interior orientation angle；105, outer orientation angle；
106, the first arc notch；2, gland portion；201, location hole；202, top plate body；203, the second arc notch；3, elastomer.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
As shown in Figure 1, a kind of contact pin welding tooling is provided referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the fixed weldering for contact pins A
It connects, including base portion 1 and gland portion 2, several 1 integral types of base portion are arranged with 2 × 2 layout, each bottom
Portions 1 configure a gland portion 2.1 upper end of base portion forms fluted 101, and groove 101 is for placing ceramics to be welded
Copper-clad plate B.The cooperation of gland portion 2 is formed with several positioning up and down on the top of the base portion 1, gland portion 2
Hole 201, the location hole 201 are covered on the top of groove 101, location hole 201 after the gland portion 2 and base portion 1 cooperate
The quantity that contact pins A can be achieved is more, and density is high, and can also arrange contact pins A according to different flexible designs.The gland portion 2 is configured with
Elastomer 3, for the contact pins A to be fixed according to the layout of the location hole 201, elastomer 3 carries the elastomer 3
The contact pins A after fixation protrudes into the ceramic copper-clad plate B that the contact of groove 101 is placed in groove 101 and is welded.
In one embodiment of contact pin welding tooling, the base portion 1 includes bottom-plate body 102, Bian Ti 103, interior orientation angle
104 and outer orientation angle 105, the bottom-plate body 102 is formed in the bottom of the base portion 1, described in the top of bottom-plate body 102 is formed
Groove 101；The side body 103 is located at the edge of the groove 101, and Bian Ti 103 extends shape by the bottom-plate body 102 upwards
At；The edge of the groove 101 is arranged in the interior orientation angle 104, and interior orientation angle 104 is located at the inside of the side body 103；Institute
The outside that the interior orientation angle 104 is arranged in outer orientation angle 105 is stated, outer orientation angle 105 is located at the edge of the side body 103.It is interior
Orientation angle 104 is for positioning ceramic copper-clad plate B, and interior orientation angle 104 opens up the first arc notch 106 of arc-shaped, convenient for taking
Ceramic copper-clad plate B.The size of interior orientation angle 104 requires strictly, long apart from the bottom ceramic copper-clad plate B lower than the S type upper end of contact pins A
The 0.5mm of degree gives contact pins A one vertical pressure, makes firm welding.
In one embodiment of contact pin welding tooling, the gland portion 2 includes top plate body 202, the side of the top plate body 202
Edge is recessed inwardly forms the second arc notch 203；The location hole 201 is evenly distributed on the top plate body 202.It is described fixed
The aperture in position hole 201 is greater than the contact pins A diameter at least 0.2mm.Second arc notch 203, which facilitates, has welded contact pins A rear pressing cover
The taking-up in portion 2, location hole 201 are used for positioning insertion pin A, it is ensured that accuracy of the contact pins A on ceramic copper-clad plate B location, location hole
201 aperture is greater than contact pins A diameter 0.2mm.Each module has a gland portion 2, and gland portion 2 is mutually indepedent, is independent of each other.
Module number can be increased or decreased according to the actual situation, it is easy to use.Location hole 201 is covered with entire gland portion 2, can be according to difference
Design carry out flexibly arrangement contact pins A.
In one embodiment of contact pin welding tooling, the elastomer 3 uses thermoplastic elastomer (TPE) TPE/TPR.Thermoplasticity
Elastomer TPE/TPR have high intensity, high resilience, can injection molding, have wide range of applications, environment-protecting and non-poisonous safety, Ke Yishi
The plug repeatedly of existing contact pins A, high recycling rate.
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, referring to Fig. 5, the embodiment of the present invention also provides a kind of contact pins A fixing means, is based on
Above-mentioned welding tooling, comprising the following steps:
S1: ceramic copper-clad plate B to be welded is previously positioned in 102 groove 101 of bottom-plate body of base portion 1, ceramics cover
Copper sheet B is positioned by interior orientation angle 104；
S2: gland portion 2 is upsided down the top for being placed on elastomer 3；
S3: contact pins A is sequentially passed through to the location hole 201 in gland portion 2, is inserted into the end of contact pins A inside elastomer 3；
S4: the contact pins A after fixing is carried by elastomer 3 and protrudes into the ceramics that the contact of groove 101 is placed in groove 101
Copper-clad plate B, gland portion 2 are fixed in base portion 1 by outer orientation angle 105；
S5: after pulling out elastomer 3, contact pins A welding is carried out.
In one embodiment of contact pins A fixing means, after gland portion 2 is fixed on base portion 1 by outer orientation angle 105, insert
Needle A and ceramic copper-clad plate B is in contact impaction state.Before contact pins A welding, pulls out the elastomer 3 and reuse.
The welding tooling of the embodiment of the present invention is fixed by 3 contact pins A of elastomer according to the layout of location hole 201, bullet
Property body 3 carry it is fixed after contact pins A protrude into groove 101 and contact the ceramic copper-clad plate B being placed in groove 101 and welded, gland
After portion 2 is fixed on base portion 1 by outer orientation angle 105, contact pins A and ceramic copper-clad plate B are in contact impaction state, make contact pins A
Close connection is realized after welding with ceramic copper-clad plate B by tin cream, it is therefore prevented that contact pins A and ceramic copper-clad plate B are easy after welding
The phenomenon that loosening, which ensure that Product jointing is secured, high-quality and yields is high.Welding tooling can also be according to soldering furnace ruler
It is very little to be sized to m n array formula, can placement module quantity it is flexible and changeable, increase space utilization rate, gland portion 2
Location hole 201 can realize that the quantity of contact pins A is more, and density is high, while the contact pins A that can also be arranged according to different flexible designs.Pass through
The contact pin fixing means of the embodiment of the present invention, since pin tip is fixed on elastomer, when reverse operating, contact pin be will not fall
It falls, solves in traditional-handwork operating process that contact pin is easy the phenomenon that falling, while also can avoid touching ceramic copper-clad plate, drop
Low material loss rate, improves yields and production efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of contact pin welding tooling, for being fixedly welded for contact pin, which is characterized in that including base portion (1) and gland portion
(2), base portion (1) upper end is formed fluted (101), and the gland portion (2) cooperates in the top of the base portion (1),
Several location holes (201) up and down are formed in gland portion (2), the location hole (201) is at the gland portion (2) and bottom
The top of groove (101) is covered on after portions (1) cooperation；
The gland portion (2) is configured with elastomer (3), and the elastomer (3) is used for the contact pin according to the location hole
(201) layout is fixed, elastomer (3) carry it is fixed after the contact pin protrude into the groove (101) contact be placed in it is recessed
Ceramic copper-clad plate in slot (101) is welded after pulling out elastomer (3).
2. a kind of contact pin welding tooling according to claim 1, which is characterized in that the base portion (1) includes bottom-plate body
(102), side body (103), interior orientation angle (104) and outer orientation angle (105), the bottom-plate body (102) are formed in the base portion
(1) bottom, the top of bottom-plate body (102) form the groove (101)；The side body (103) is located at the groove (101)
Edge, side body (103) are extended to form upwards by the bottom-plate body (102)；The interior orientation angle (104) is arranged in the groove
(101) edge, interior orientation angle (104) are located at the inside of the side body (103), are equipped with the first arc at interior orientation angle (104)
Notch (106)；The outer orientation angle (105) is arranged in the outside of the interior orientation angle (104), and outer orientation angle (105) is located at institute
State the edge of side body (103).
3. a kind of contact pin welding tooling according to claim 1, which is characterized in that the gland portion (2) includes top plate body
(202), the edge of the top plate body (202) is recessed inwardly forms the second arc notch (203)；The location hole (201) is equal
It is even to be distributed on the top plate body (202).
4. a kind of contact pin welding tooling according to claim 1, which is characterized in that the aperture of the location hole (201) is big
In the pin diameter at least 0.2mm.
5. a kind of contact pin welding tooling according to claim 1, which is characterized in that several base portion (1) integral types
It is arranged with the layout of m × n, m, n are natural number, and each base portion (1) configures a gland portion (2).
6. a kind of contact pin welding tooling according to claim 1, which is characterized in that the elastomer (3) uses thermoplasticity
Elastomer (3) TPE/TPR.
7. a kind of contact pin fixing means, based on the welding tooling as described in claim 1 to 6 any one, which is characterized in that packet
Include following steps:
Ceramic copper-clad plate to be welded is previously positioned in bottom-plate body (102) groove (101) of base portion (1), ceramic copper-clad
Plate is positioned by interior orientation angle (104)；
Gland portion (2) are upsided down the top for being placed on elastomer (3)；
The location hole (201) that contact pin is sequentially passed through to gland portion (2) makes the end of contact pin be inserted into elastomer (3) internal；
The ceramics that the groove (101) contact is placed in groove (101) are protruded by contact pin of elastomer (3) carrying after fixed to cover
Copper sheet, gland portion (2) are fixed on base portion (1) by outer orientation angle (105)；
After pulling out elastomer (3), contact pin welding is carried out.
8. a kind of contact pin fixing means according to claim 7, which is characterized in that gland portion (2) pass through outer orientation angle
(105) after being fixed on base portion (1), contact pin and ceramic copper-clad plate are in contact impaction state.
9. a kind of contact pin fixing means according to claim 7, which is characterized in that before contact pin welding, pull out the elasticity
Body (3) is reused.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185015.2A CN109732173A (en) | 2019-03-12 | 2019-03-12 | A kind of contact pin welding tooling and contact pin fixing means |
| PCT/CN2019/119749 WO2020181828A1 (en) | 2019-03-12 | 2019-11-20 | Pin soldering tool and pin fixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185015.2A CN109732173A (en) | 2019-03-12 | 2019-03-12 | A kind of contact pin welding tooling and contact pin fixing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109732173A true CN109732173A (en) | 2019-05-10 |
Family
ID=66370216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910185015.2A Withdrawn CN109732173A (en) | 2019-03-12 | 2019-03-12 | A kind of contact pin welding tooling and contact pin fixing means |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109732173A (en) |
| WO (1) | WO2020181828A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181828A1 (en) * | 2019-03-12 | 2020-09-17 | 烟台台芯电子科技有限公司 | Pin soldering tool and pin fixing method |
| CN113629470A (en) * | 2021-07-27 | 2021-11-09 | 北京无线电测量研究所 | Multi-form pressure transmission device and method for micro-strip sheet brazing |
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| WO2020181828A1 (en) * | 2019-03-12 | 2020-09-17 | 烟台台芯电子科技有限公司 | Pin soldering tool and pin fixing method |
| CN113629470A (en) * | 2021-07-27 | 2021-11-09 | 北京无线电测量研究所 | Multi-form pressure transmission device and method for micro-strip sheet brazing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020181828A1 (en) | 2020-09-17 |
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Application publication date: 20190510 |
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| WW01 | Invention patent application withdrawn after publication |