CN110325008B - Multi-power tube circuit board assembling device - Google Patents
Multi-power tube circuit board assembling device Download PDFInfo
- Publication number
- CN110325008B CN110325008B CN201910600291.0A CN201910600291A CN110325008B CN 110325008 B CN110325008 B CN 110325008B CN 201910600291 A CN201910600291 A CN 201910600291A CN 110325008 B CN110325008 B CN 110325008B
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- CN
- China
- Prior art keywords
- spring piece
- plate
- power tube
- circuit board
- bottom plate
- 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.)
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- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000012937 correction Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
- H05K7/1405—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by clips or resilient members, e.g. hooks
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The multi-power tube circuit board assembling device is used for assembling a multi-power tube circuit board of a motor controller, a spring piece and a controller radiating bottom plate and comprises a radiating bottom plate fixing mechanism and a spring piece compressing mechanism, wherein the radiating bottom plate fixing mechanism comprises a fixing plate and a positioning column; the spring piece compression mechanism comprises a bottom plate, an upper plate and supporting plates on two sides, wherein a linear guide rail is fixed on the bottom plate, a sliding block is arranged on the linear guide rail, a transverse sliding block connecting plate is fixed on each two sliding blocks, a longitudinal first compression bracket and a longitudinal second compression bracket are fixed at two ends of the sliding block connecting plate, two spring piece clamp strips are arranged, and the spring piece is arranged between the two spring piece clamp strips; the support plate is fixedly provided with a cylinder and an electromagnetic valve, and the movable end of the cylinder is connected with a slide block connecting plate. The assembling tool disclosed by the invention is simple and convenient to operate, flexible in practicability and capable of rapidly installing the multi-power tube circuit boards with different thicknesses by effectively controlling the compression distance of the spring piece.
Description
Technical Field
The invention relates to the technical field of motor controller assembly equipment, in particular to a multi-power tube circuit board assembly device.
Background
The new energy automobile can not discharge toxic gas and cause air pollution, which is a great advantage of the new energy automobile compared with the fuel oil automobile and other vehicles. With the rapid development of new energy automobiles, various structures of the motor controller, which is a core accessory of the new energy automobiles, are also presented. The difference in various structures occurs because of the need to solve the heat dissipation of a large number of electronic devices, especially power transistors, inside the motor controller. The power tube is a core electronic component of the motor controller and is also a main source for generating heat inside the motor controller, and if the generated heat cannot be timely emitted, the service life of the electronic component inside the motor controller can be influenced, so that the service life of the motor controller is shortened and even damaged.
The patch power tube is adopted to weld the power tube on the aluminum circuit board, and then the aluminum circuit board is fixed on the heat dissipation base table by using a plurality of screws manually, but the structure is used to ensure that the operation work efficiency is low, the power tube is easy to damage, the damage rate of the aluminum circuit board is increased, the production and processing cost is increased, and the yield is low.
The spring piece structure is adopted to radiate heat of the power tube circuit board, the clamp strips are manually used when the power tube circuit board is assembled, and the spring piece is compressed for a certain distance by the clamp and then is put into the multi-power tube circuit board. The assembly process is complex and difficult to operate, the production efficiency is extremely low, and the assembly process has certain danger.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides the multi-power tube circuit board assembly device which is simple and convenient to operate, flexible in practicality and high in production efficiency and safety.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a many power tubes circuit board assembly device for the equipment of motor controller's many power tubes circuit board, spring leaf and controller heat dissipation bottom plate, including heat dissipation bottom plate fixed establishment and spring leaf compressing mechanism, heat dissipation bottom plate fixed establishment includes the fixed plate, is equipped with a plurality of locating holes on the fixed plate, is equipped with the reference column in the locating hole, also is equipped with the locating hole that corresponds on the controller heat dissipation bottom plate, and controller heat dissipation bottom plate passes through the reference column with the fixed plate and connects fixedly. The spring piece compression mechanism comprises a bottom plate, an upper plate and supporting plates fixed on the front side and the rear side of the bottom plate and the upper plate, wherein two longitudinal stepped through holes are formed in the upper plate, four longitudinal linear guide rails are fixed on the bottom plate, two sliding blocks are arranged on each linear guide rail, a transverse sliding block connecting plate is fixed on each two sliding blocks of different linear guide rails, longitudinal first compression brackets are fixed at two ends of each two sliding block connecting plates, longitudinal second compression brackets are fixed at two ends of each other two sliding block connecting plates, a plurality of first clamping blocks are arranged on each first compression bracket, a plurality of second clamping blocks are arranged on each second compression bracket, the first clamping blocks and the second clamping blocks penetrate through the stepped through holes to face each other and are staggered, two spring piece clamping bars are arranged between the adjacent first clamping blocks and the second clamping blocks, and the spring piece is arranged between the two spring piece clamping bars; the support plate is fixedly provided with an air cylinder and an electromagnetic valve, and the movable end of the air cylinder is connected with a slide block connecting plate. The electromagnetic valve is used for controlling the flow direction of gas in the air cylinders of the controller, and the two air cylinders respectively control the first compression bracket and the second compression bracket to move oppositely through the sliding block connecting plates.
Preferably, a universal joint is arranged between the movable end of the cylinder and the slide block connecting plate. The air cylinder is connected with the outer slide block connecting plate through a universal joint.
Preferably, the upper plate is fixed with a clamp strip correction block on the left and right, and the clamp strip correction block is provided with a plurality of protruding blocks, and the protruding blocks are positioned between the two spring leaf clamp strips and used for improving deflection deformation of the spring leaf clamp strips due to stress.
Preferably, a plurality of triangular fixing blocks are arranged at the connection positions of the upper plate or the bottom plate and the supporting plate. Generally, one is arranged on each of the left side and the right side of the connecting position, so that the strength of the mechanism is improved.
Preferably, four longitudinal grooves are formed in the bottom plate, and the linear guide rail is fixed in the grooves, so that the installation accuracy and the connection strength are improved.
Preferably, the number of the positioning holes at each position on the fixing plate is multiple, and the positioning columns are arranged at different positions, so that the fixing of the controller radiating bottom plates with different sizes on the fixing mechanism of the device is realized.
Preferably, the second compression bracket main body has a right-angle bending, and the second clamping block and the first clamping block are on the same longitudinal plane, so that the spring piece is stressed and contracted more uniformly.
Preferably, a limiting block is arranged at the turning part of the stepped through hole, so that the displacement stroke of the compression bracket can be limited.
Preferably, the two sides of the spring piece are provided with outward protruding outer protruding parts, the two sides of the spring piece clamp strip are provided with clamping grooves matched with the end parts of the two sides of the spring piece, and the outer protruding parts are propped against the multi-power tube of the multi-power tube circuit board.
Preferably, the spring piece intermediate connecting section is provided with a limiting hole and a fixing hole, the controller radiating bottom plate is provided with a limiting column and a fixing screw hole, and the spring piece is fixed between the side walls of the controller radiating bottom plate through screws. The spring piece evagination portion presses the multi-power tube part of the multi-power tube circuit board on the side wall, and the structures of the limit holes, the limit columns, the fixing holes and the fixing screw holes are used for positioning and fixing during assembly, such as spring piece movement during spring piece clamp strip extraction prevention and spring piece fixation after assembly.
The invention has the beneficial effects that: the device is suitable for good fixation of the radiating bottom plates of the controllers with various sizes, the electromagnetic valve is electrified or powered off to control the flow direction of gas, the controller cylinder moves, a series of parts are used for generating linkage, the spring piece is compressed, gaps are generated, the rapid assembly of the circuit board with the multiple power tubes is realized, the operation is simple and convenient, the practicability is flexible, and the problems that the operation of manually assembling the circuit board with the multiple power tubes is complex and the production efficiency is extremely low are effectively solved.
According to the scheme, the whole device can be adapted to the base tables with different sizes, the applicability is strong, the flexibility is good, the operation is simple, the production efficiency is greatly improved, and the personal safety is ensured.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a perspective view of the upper part of the fixing plate of the present invention;
figure 5 is a perspective view of a spring leaf according to the present invention;
figure 6 is a cross-sectional view of a spring clip strip of the present invention;
FIG. 7 is a perspective view of the fixing plate and the following parts in the present invention;
FIG. 8 is a perspective view of the lower portion of the upper plate of the present invention;
FIG. 9 is a perspective view of a first compression bracket and a second compression bracket of the present invention;
FIG. 10 is a perspective view of the base plate, upper plate and support plate of the present invention;
fig. 11 is an assembled schematic diagram of the circuit board with multiple power tubes according to the invention.
In the figure: 1. a fixing plate; 1.1, positioning holes; 2. positioning columns; 3. a bottom plate; 3.1, grooves; 4. an upper plate; 4.1, stepped through holes; 5. a support plate; 6. a linear guide rail; 7. a slide block; 8. a slide block connecting plate; 9. a first compression bracket; 9.1, a first clamping block; 10. a second compression bracket; 10.1, a second clamping block; 11. a cylinder; 12. an electromagnetic valve; 13. a spring clip strip; 13.1, clamping grooves; 14. a universal joint; 15. a clamp bar correction block; 15.1, bumps; 16. a triangular fixed block; 17. a limiting block; 100. a spring piece; 101. an outer protruding portion; 102. an end portion; 103. a limiting hole; 200. a controller heat dissipation base plate; 201. a sidewall; 202. a limit column; 300. a multi-power tube circuit board; 301. a multi-power tube.
Detailed Description
The invention is further illustrated by the following detailed description and the accompanying drawings.
The implementation mode is as follows: as shown in fig. 1-5 and 11, the multi-power tube circuit board assembling device is used for assembling a spring plate 100 of a motor controller, a controller heat dissipation base plate 200 and a multi-power tube circuit board 300. The two sides of the spring piece 100 are provided with an outer protruding portion 101 and an end portion 102 which protrude outwards, a limiting hole 103 and a fixing hole 104 are formed in the middle connecting section, a plurality of side walls 201 are arranged on the controller radiating bottom plate 200, limiting columns 202 and fixing screw holes 203 are formed between the side walls 201, the spring piece 100 is fixed between the side walls 201 of the controller radiating bottom plate 200 through screws, and the outer protruding portion 101 presses a multi-power tube 301 of the multi-power tube circuit board 300 on the side walls 201 on the two sides. The assembling device comprises a radiating bottom plate fixing mechanism and a spring piece compressing mechanism.
Referring to fig. 7, the fixing mechanism for the heat dissipation base plate comprises a fixing plate 1, wherein a plurality of positioning holes 1.1 are formed in the fixing plate 1, the number of the positioning holes 1.1 is multiple, and positioning columns 2 are arranged in the positioning holes 1.1.
Referring to fig. 7 to 8 and 10, the spring leaf compressing mechanism includes a bottom plate 3, an upper plate 4, and support plates 5 fixed on the front and rear sides of the bottom plate 3 and the upper plate 4, wherein a plurality of triangular fixing blocks 16 are arranged at the connection positions of the upper plate 4 or the bottom plate 3 and the support plates 5, and the fixing plates 1 are fixed on the upper plate 4. Two longitudinal stepped through holes 4.1 are formed in the upper plate 4, limiting blocks 17 are arranged at turning positions of the stepped through holes 4.1, four longitudinal grooves 3.1 are formed in the bottom plate 3, linear guide rails 6 are respectively fixed in the grooves 3.1, two sliding blocks 7 are arranged on each linear guide rail 6, and a transverse sliding block connecting plate 8 is fixed on each two sliding blocks 7. The support plate 5 is fixedly provided with an air cylinder 11 and an electromagnetic valve 12, and movable ends of the two air cylinders 11 are respectively provided with a universal joint 14 to connect the two slide block connecting plates 8 on the outer side.
Referring to fig. 9, two ends of two slider connecting plates 8 are fixed with longitudinal first compression brackets 9, two ends of the other two slider connecting plates 8 are fixed with longitudinal second compression brackets 10, a plurality of first clamping blocks 9.1 are arranged on the first compression brackets 9, a plurality of second clamping blocks 10.1 are arranged on the second compression brackets 10, the first clamping blocks 9.1 and the second clamping blocks 10.1 penetrate through the stepped through holes 4.1 to be opposite and staggered, and grooves with opposite directions are respectively arranged on the first clamping blocks 9.1 and the second clamping blocks 10.1. The main body of the second compression bracket 10 has a right-angle bend, and the second clamping block 10.1 and the first clamping block 9.1 are on the same longitudinal plane.
As shown in fig. 6, two spring piece clamp strips 13 are arranged between the adjacent first clamping blocks 9.1 and second clamping blocks 10.1, the spring piece 100 is arranged between the two spring piece clamp strips 13, and clamping grooves 13.1 matched with end parts 102 on two sides of the spring piece 100 are formed on two sides of the spring piece clamp strips 13. The upper plate 4 is fixed with a clamp strip correction block 15 from left to right, a plurality of protruding blocks 15.1 are arranged on the clamp strip correction block 15, and the protruding blocks 15.1 are positioned between the end parts of the two spring piece clamp strips 13.
The working mode is as follows: after the spring piece 100 is put between the spring piece clamp strips 13 and then put into the controller radiating bottom plate 200, then the controller radiating bottom plate 200 is put on the fixed plate 1, the fixing is ensured through the locating column 2 and the fixing screw, after the electromagnetic valve 12 is electrified, gas enters the two cylinders 11 to push the universal joint 14 connected with the two cylinders, the universal joint 14 drives the slide block connecting plate 8 fixed on the slide block 7 to move towards the middle, at the moment, the first compression bracket 9 and the second compression bracket 10 fixed on the slide block connecting plate 8 also move relatively at the same time, the distance between the first clamping block 9.1 and the second clamping block 10.1 is reduced, so that the distance between the spring piece clamp strips 13 pre-put on the spring piece 100 is reduced, the spring piece 100 is compressed, and after enough gaps are generated between the outer convex part 101 of the spring piece 100 and the side wall 201 of the controller radiating bottom plate 200, the multi-power tube circuit board 300 is put. After the above operation is completed, the electromagnetic valve 12 is powered off, the air cylinder 11 is reset, the spring piece 100 opens the outer flange 101 to press the multi-power tube 301 of the multi-power tube circuit board 300 on the side wall 201, and the spring piece clamp strip 13 is removed, so that the mounted multi-power tube circuit board 300, the spring piece 100 and the controller heat dissipation base plate 200 can be removed.
The above embodiments are merely examples of the present invention, but the present invention is not limited thereto, and the present invention may be applied to similar products, and any person skilled in the art who is skilled in the field of the present invention shall make changes or modifications within the scope of the present invention.
Claims (6)
1. The utility model provides a many power tube circuit board assembly device for the equipment of spring leaf (100) of motor controller, controller heat dissipation bottom plate (200) and many power tube circuit board (300), its characterized in that: the heat dissipation base plate fixing mechanism comprises a fixing plate (1), a plurality of positioning holes (1.1) are formed in the fixing plate (1), and positioning columns (2) are arranged in the positioning holes (1.1);
the spring piece compression mechanism comprises a bottom plate (3), an upper plate (4) and support plates (5) fixed on the front side and the rear side of the bottom plate (3) and the upper plate (4), wherein two longitudinal stepped through holes (4.1) are formed in the upper plate (4), four longitudinal linear guide rails (6) are fixed on the bottom plate (3), two sliding blocks (7) are arranged on each linear guide rail (6), a transverse sliding block connecting plate (8) is fixed on each two sliding blocks (7), longitudinal first compression brackets (9) are fixed at two ends of each two sliding block connecting plates (8), longitudinal second compression brackets (10) are fixed at two ends of each other two sliding block connecting plates (8), a plurality of first clamping blocks (9.1) are arranged on each first compression bracket (9), a plurality of second clamping blocks (10.1) are arranged on each second compression bracket (10), the first clamping blocks (9.1) and the second clamping blocks (10.1) penetrate through the stepped through holes (4.1) and are arranged in a staggered mode, and two spring pieces (13) are arranged between the two adjacent first clamping blocks (9.1) and the two spring pieces (13);
an air cylinder (11) and an electromagnetic valve (12) are fixed on the supporting plate (5), and the movable end of the air cylinder (11) is connected with the sliding block connecting plate (8);
the two side surfaces of the spring piece (100) are provided with outer protruding parts (101), and the two sides of the spring piece clamp strip (13) are provided with clamping grooves (13.1) matched with the two side end parts (102) of the spring piece (100);
a limiting hole (103) and a fixing hole (104) are formed in the middle connecting section of the spring piece (100), a limiting column (202) and a fixing screw hole (203) are formed in the controller radiating bottom plate (200), the spring piece (100) is fixed between the side walls (201) of the controller radiating bottom plate (200) through screws, and the outer protruding part (101) presses a multi-power tube (301) of the multi-power tube circuit board (300) on the side walls (201);
a universal joint (14) is arranged between the movable end of the air cylinder (11) and the slide block connecting plate (8);
the upper plate (4) is fixed with a clamp strip correction block (15) left and right, a plurality of protruding blocks (15.1) are arranged on the clamp strip correction block (15), and the protruding blocks (15.1) are positioned between the two spring piece clamp strips (13).
2. The multi-power tube circuit board assembly device of claim 1, wherein: the connection position of the upper plate (4) or the bottom plate (3) and the supporting plate (5) is provided with a plurality of triangular fixing blocks (16).
3. The multi-power tube circuit board assembly device of claim 1, wherein: four longitudinal grooves (3.1) are formed in the bottom plate (3), and the linear guide rail (6) is fixed in the grooves (3.1).
4. The multi-power tube circuit board assembly device of claim 1, wherein: the number of the positioning holes (1.1) at each position on the fixing plate (1) is multiple.
5. The multi-power tube circuit board assembly device of claim 1, wherein: the main body of the second compression bracket (10) is provided with a right-angle bending, and the second clamping block (10.1) and the first clamping block (9.1) are arranged on the same longitudinal plane.
6. The multi-power tube circuit board assembly device of claim 5, wherein: a limiting block (17) is arranged at the turning part of the stepped through hole (4.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600291.0A CN110325008B (en) | 2019-07-04 | 2019-07-04 | Multi-power tube circuit board assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600291.0A CN110325008B (en) | 2019-07-04 | 2019-07-04 | Multi-power tube circuit board assembling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110325008A CN110325008A (en) | 2019-10-11 |
| CN110325008B true CN110325008B (en) | 2024-03-22 |
Family
ID=68122646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910600291.0A Active CN110325008B (en) | 2019-07-04 | 2019-07-04 | Multi-power tube circuit board assembling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110325008B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111447755B (en) * | 2020-04-15 | 2022-11-01 | 重庆宗申电子科技有限公司 | Manufacturing and assembling method of controller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5731955A (en) * | 1996-02-05 | 1998-03-24 | Ford Motor Company | Spring clip for electronics assembly |
| CN1834663A (en) * | 2005-03-16 | 2006-09-20 | 李海暻 | Printed circuit holding device |
| CN101355870A (en) * | 2007-07-25 | 2009-01-28 | 深圳富泰宏精密工业有限公司 | Control tool |
| CN101841992A (en) * | 2009-03-18 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Assembly fixture for heat dissipation module |
| CN206065841U (en) * | 2016-07-01 | 2017-04-05 | 江苏协昌电子科技股份有限公司 | A kind of controller for electric vehicle spring leaf automatic assembling frock |
| CN108336892A (en) * | 2017-05-25 | 2018-07-27 | 泰达电子股份有限公司 | Power module and its package assembly and assemble method |
| CN210247313U (en) * | 2019-07-04 | 2020-04-03 | 杭州洲钜电子科技有限公司 | Multi-power tube circuit board assembling device |
-
2019
- 2019-07-04 CN CN201910600291.0A patent/CN110325008B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5731955A (en) * | 1996-02-05 | 1998-03-24 | Ford Motor Company | Spring clip for electronics assembly |
| CN1834663A (en) * | 2005-03-16 | 2006-09-20 | 李海暻 | Printed circuit holding device |
| CN101355870A (en) * | 2007-07-25 | 2009-01-28 | 深圳富泰宏精密工业有限公司 | Control tool |
| CN101841992A (en) * | 2009-03-18 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Assembly fixture for heat dissipation module |
| CN206065841U (en) * | 2016-07-01 | 2017-04-05 | 江苏协昌电子科技股份有限公司 | A kind of controller for electric vehicle spring leaf automatic assembling frock |
| CN108336892A (en) * | 2017-05-25 | 2018-07-27 | 泰达电子股份有限公司 | Power module and its package assembly and assemble method |
| CN210247313U (en) * | 2019-07-04 | 2020-04-03 | 杭州洲钜电子科技有限公司 | Multi-power tube circuit board assembling device |
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| Publication number | Publication date |
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| CN110325008A (en) | 2019-10-11 |
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