CN220372402U - IGBT positioning welding and paste coating jig - Google Patents
IGBT positioning welding and paste coating jig Download PDFInfo
- Publication number
- CN220372402U CN220372402U CN202321435932.XU CN202321435932U CN220372402U CN 220372402 U CN220372402 U CN 220372402U CN 202321435932 U CN202321435932 U CN 202321435932U CN 220372402 U CN220372402 U CN 220372402U
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- bottom plate
- igbt
- cavity
- hole
- locating pin
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- 238000003466 welding Methods 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 title description 4
- 239000011248 coating agent Substances 0.000 title description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000006071 cream Substances 0.000 claims abstract description 10
- 230000001174 ascending effect Effects 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model belongs to the control module field of making specifically is an IGBT fixed-position welding and scribble cream tool, including the bottom plate, with bottom plate complex steel mesh, the central authorities of the upper surface of bottom plate are equipped with the ascending cavity of opening, the interior bottom surface of cavity is the plane, the inline is equipped with a plurality of holes of dodging on the interior bottom surface of cavity, preset the clearance between the adjacent two dodging holes, respectively be equipped with a row of locating pin on the interior bottom surface of cavity in the both sides of the queue that all dodges the hole formation, the queue that all locating pins that is located the same one side of dodging the hole formed is parallel with the queue of dodging the hole, the length of every locating pin all is less than the degree of depth of cavity, be located the same side locating pin of dodging the hole and correspond one and dodge the hole, this application adopts the mode that the bottom surface is planar cavity cooperation locating pin on the bottom plate, make through the locating pin fixed with the IGBT that waits to assemble, and make with the even of scribbling on the IGBT welded A board.
Description
Technical Field
The application belongs to the control module field of making, specifically is an IGBT fixed-position welding and scribbles cream tool.
Background
At present, when the IGBT and the PCBA board are assembled together, the IGBT and the PCBA board are welded first, and then the IGBT is pasted after being welded. The concrete engineering is as follows: the IGBT is manually pre-locked at first and then welded in a single mode, so that 6 IGBTs are easily inconsistent in height and uneven in paste coating during welding of the IGBT and the PCBA board, the thermal resistance of a contact surface is increased, the temperature rise is higher, the quality of a product is reduced, the production requirement is difficult to meet, and the reject ratio of the product is higher finally.
Disclosure of Invention
The purpose of this application is according to prior art's shortcoming, adopts the mode that the bottom surface is planar cavity cooperation locating pin on the bottom plate, has designed an IGBT fixed position welding and scribble cream tool for can be through the locating pin with waiting to assemble the IGBT chucking fixed back again with corresponding PCBA board and IGBT welding and rubber coating, thereby solved how to make all IGBTs highly uniform and how to make and scribble the even problem of cream on the PCBA board after the welding.
The technical scheme adopted by the application is as follows:
the utility model provides an IGBT fixed-position welding and scribble cream tool, includes the bottom plate, with bottom plate complex steel mesh, the central authorities of the upper surface of bottom plate are equipped with the ascending cavity of opening, the interior bottom surface of cavity is the plane, the inline is equipped with a plurality of holes of dodging on the interior bottom surface of cavity, and the clearance is preset between two adjacent dodging the hole, on the interior bottom surface of cavity all dodging the both sides of the hole-formed queue respectively are equipped with a row of locating pin, are located the queue that all locating pins of the same side of the hole-formed queue with dodge the hole-formed queue is parallel, every the length of locating pin all is less than the degree of depth of cavity is located every two in the same side locating pin of the hole-formed queue dodge the hole corresponds one dodge the hole.
Preferably, a limiting plate matched with the steel mesh is arranged on the side wall of the bottom plate.
Preferably, the shape and size of the steel mesh is equal to the shape and size of the upper surface of the bottom plate, the limiting plate comprises a first part and a second part, the first part is perpendicular to the upper surface of the bottom plate, the top end of the first part is higher than the upper surface of the bottom plate, the bottom end of the first part is fixedly connected with the outer side of the bottom plate, the bottom end of the second part is connected with the top end of the first part, the distance from the top end of the second part to the side wall of the bottom plate is greater than the distance from the bottom end of the second part to the side wall of the bottom plate, and the joint of the first part and the second part is in smooth transition towards one side of the steel mesh.
Preferably, the steel mesh comprises a mesh body and a mesh frame, the shape and the size of the mesh frame are equal to those of the upper surface of the bottom plate, a plurality of mesh bodies are arranged in the mesh frame in a linear manner, and when the steel mesh is covered on the upper surface of the bottom plate, each mesh body is correspondingly positioned right above one avoidance hole.
Preferably, the bottom plate is rectangular, and each side wall of the bottom plate is provided with at least one limiting plate.
Preferably, the net frame is made of wood materials, and the net body is made of steel wires.
Preferably, the first and second portions are each resilient.
The beneficial effects of this application are:
1. the utility model discloses a mode that bottom surface is planar cavity cooperation locating pin on the bottom plate has designed an IGBT fixed-position welding and has scribbled cream tool for can be through the locating pin with waiting to assemble the IGBT chucking fixed back again with corresponding PCBA board and IGBT welding and rubber coating, thereby solved how to make all IGBTs highly uniform, and how to make and scribble the even problem of cream on the PCBA board after the welding.
2. The setting of limiting plate in this application is in order to guarantee that the steel mesh lid closes on bottom plate 1 is steady, is convenient for scribble the cream.
3. The mode that constitutes limiting plate set to by first part and second part in this application, the convenience closes the steel mesh lid on the bottom plate to can guarantee that the steel mesh that the lid was closed on the bottom plate is stable at the rubberizing in-process.
Drawings
FIG. 1 is a schematic structural view of a base plate of the present application;
FIG. 2 is a schematic view of the bottom surface of FIG. 1;
FIG. 3 is a schematic diagram of the structure of a base plate with an IGBT and PCBA board disposed thereon;
FIG. 4 is a schematic diagram of the structure of the IGBT and PCBA board welded together in FIG. 3 placed on a base plate after being flipped over;
fig. 5 is a schematic view of the structure of fig. 4 after the steel mesh is covered on the bottom plate.
Wherein, 1, the bottom plate; 2. a cavity; 3. avoidance holes; 4. a positioning pin; 5. a first portion; 6. a second portion; 7. a net body; 8. a screen frame; 9. an IGBT; 10. PCBA board.
Detailed Description
Referring to fig. 1-5, an IGBT positioning welding and paste applying jig comprises a bottom plate 1, a steel mesh matched with the bottom plate 1, a cavity 2 with an upward opening is arranged in the center of the upper surface of the bottom plate 1, the inner bottom surface of the cavity 2 is a plane, a plurality of avoidance holes 3 are arranged on the inner bottom surface of the cavity 2 in a linear manner, a preset gap is reserved between two adjacent avoidance holes 3, a row of positioning pins 4 are respectively arranged on two sides of a queue formed by all the avoidance holes 3 on the inner bottom surface of the cavity 2, the queue formed by all the positioning pins 4 positioned on the same side of the queue of the avoidance holes 3 is parallel to the queue of the avoidance holes 3, the length of each positioning pin 4 is smaller than the depth of the cavity 2, and each two positioning pins 4 positioned on the same side of the queue of the avoidance holes 3 correspond to one avoidance hole 3.
In this embodiment, when in use, firstly, the IGBT9 is placed in the cavity 2, and meanwhile, the positioning hole on the IGBT9 is sleeved on the positioning pin 4, so that the state of fig. 3 is formed, then, one PCBA board 10 is placed on each IGBT9, then, the corresponding IGBT9 and PCBA board 10 are welded together, then, the whole body formed by each welded IGBT9 and PCBA board 10 is turned over, so that the state of fig. 4 is formed, wherein the setting of the avoiding hole 3 is that after the whole body formed by the IGBT9 and the PCBA board 10 is turned over, the avoiding hole 3 can avoid the plug-in on the PCBA board 10; finally, the steel mesh is covered on the bottom plate 1, and then the whole body formed by the welded IGBT9 and the PCBA 10 is coated with paste, and the purpose of the paste is to dissipate heat when the whole body formed by the welded IGBT9 and the welded PCBA 10 works. The positioning pins 4 fix the IGBTs 9 to ensure that all the IGBTs 9 positioned in the concave cavity 2 are at the same height, so that no uneven situation occurs, and the paste attached to each IGBT9 is as much as the paste in the paste coating process, namely the paste is uniform; the setting of steel mesh more makes can be even with the cream dispersion when the rubberizing, further makes the rubberizing even.
As a preferable mode, a limit plate matched with the steel mesh is arranged on the side wall of the bottom plate 1. The limiting plate is arranged to ensure that the steel mesh is covered on the bottom plate 1 stably, so that the paste can be conveniently coated.
As a preferred mode, the shape and size of the steel mesh is equal to the shape and size of the upper surface of the bottom plate 1, the limiting plate comprises a first part 5 and a second part 6, the first part 5 is perpendicular to the upper surface of the bottom plate 1, the top end of the first part 5 is higher than the upper surface of the bottom plate 1, the bottom end of the first part 5 is fixedly connected with the outer side of the bottom plate 1, the bottom end of the second part 6 is connected with the top end of the first part 5, the distance from the top end of the second part 6 to the side wall of the bottom plate 1 is greater than the distance from the bottom end of the second part 6 to the side wall of the bottom plate 1, and the connection position of the first part 5 and the second part 6 is in smooth transition towards one side of the steel mesh. The arrangement of the first part 5 and the second part 6 facilitates the covering of the steel mesh on the base plate 1 and ensures that the steel mesh covered on the base plate 1 is stable during the pasting process.
As a preferable mode, the steel mesh comprises a mesh body 7 and a mesh frame 8, the shape and the size of the mesh frame 8 are equal to those of the upper surface of the bottom plate 1, a plurality of mesh bodies 7 are arranged in the mesh frame 8 in a linear manner, and when the steel mesh is covered on the upper surface of the bottom plate 1, each mesh body 7 is correspondingly positioned right above one avoidance hole 3. Through the setting of net body 7 and net frame 8 for in the rubberizing in-process, only the rubberizing of net body 7 department can.
As a preferable mode, the shape of the bottom plate 1 is cuboid, and at least one limiting plate is arranged on each side wall of the bottom plate 1.
Preferably, the net frame 8 is made of wood, and the net body 7 is made of steel wires. The service life of the net body 1 can be prolonged by the arrangement, and the net frame 8 made of wood materials can lighten the quality of the jig under the use effect of not affecting the normal functions.
As a preferred way, both the first portion 5 and the second portion 6 are elastic. This placement facilitates the covering of the steel mesh on the bottom plate 1.
Claims (7)
1. IGBT fixed-position welding and scribble cream tool, its characterized in that, including bottom plate (1), with bottom plate (1) complex steel mesh, the central authorities of the upper surface of bottom plate (1) are equipped with ascending cavity (2) of opening, the interior bottom surface of cavity (2) is the plane, the inline is equipped with a plurality of holes (3) of dodging on the interior bottom surface of cavity (2), and the clearance is preset between two adjacent dodging holes (3), on the interior bottom surface of cavity (2) all dodge the both sides of the queue that hole (3) formed respectively are equipped with one row of locating pin (4), be located dodge the queue that hole (3) the same side of queue all locating pin (4) formed with dodge the queue of hole (3) is parallel, every the length of locating pin (4) all is less than the degree of depth of cavity (2), be located dodge every two in the same side locating pin of the queue of hole (3) locating pin the locating pin corresponds one dodge hole (3).
2. The IGBT positioning welding and paste applying jig according to claim 1, wherein limiting plates matched with the steel mesh are arranged on the side wall of the bottom plate (1).
3. The IGBT positioning welding and paste applying jig according to claim 2, wherein the shape and size of the steel mesh are equal to those of the upper surface of the bottom plate (1), the limiting plate comprises a first part (5) and a second part (6), the first part (5) is perpendicular to the upper surface of the bottom plate (1), the top end of the first part (5) is higher than the upper surface of the bottom plate (1), the bottom end of the first part (5) is fixedly connected with the outer side of the bottom plate (1), the bottom end of the second part (6) is connected with the top end of the first part (5), the distance from the top end of the second part (6) to the side wall of the bottom plate (1) is larger than the distance from the bottom end of the second part (6) to the side wall of the bottom plate (1), and the joint of the first part (5) and the second part (6) is in smooth transition towards one side of the steel mesh.
4. The IGBT positioning welding and paste applying jig according to claim 3, wherein the steel mesh comprises a mesh body (7) and a mesh frame (8), the shape and the size of the mesh frame (8) are equal to those of the upper surface of the bottom plate (1), a plurality of mesh bodies (7) are arranged in the mesh frame (8) in a linear manner, and when the steel mesh is covered on the upper surface of the bottom plate (1), each mesh body (7) is correspondingly positioned right above one avoidance hole (3).
5. The IGBT positioning welding and paste applying jig according to claim 3, wherein the bottom plate (1) is rectangular, and at least one limiting plate is arranged on each side wall of the bottom plate (1).
6. The IGBT positioning welding and paste applying jig according to claim 4, wherein the net frame (8) is made of wood materials, and the net body (7) is made of steel wires.
7. An IGBT tack welding and paste application jig according to claim 3, characterized in that the first part (5) and the second part (6) are both elastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321435932.XU CN220372402U (en) | 2023-06-07 | 2023-06-07 | IGBT positioning welding and paste coating jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321435932.XU CN220372402U (en) | 2023-06-07 | 2023-06-07 | IGBT positioning welding and paste coating jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220372402U true CN220372402U (en) | 2024-01-23 |
Family
ID=89561717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321435932.XU Active CN220372402U (en) | 2023-06-07 | 2023-06-07 | IGBT positioning welding and paste coating jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220372402U (en) |
-
2023
- 2023-06-07 CN CN202321435932.XU patent/CN220372402U/en active Active
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