CN207788125U - Welding tooling and welding system - Google Patents
Welding tooling and welding system Download PDFInfo
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- CN207788125U CN207788125U CN201820171913.3U CN201820171913U CN207788125U CN 207788125 U CN207788125 U CN 207788125U CN 201820171913 U CN201820171913 U CN 201820171913U CN 207788125 U CN207788125 U CN 207788125U
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- hole
- elastic connection
- connection structure
- cover board
- welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
Welding tooling and welding system provided by the utility model, are related to electrode welding technical field.Wherein, the welding tooling includes：Pressing plate, the pressing plate are provided with first through hole；One end of elastic connection structure, the elastic connection structure is set to the first through hole, and is provided with the second through-hole being connected to the first through hole；Magnetic connecting structure, the magnetic connecting structure are set to the one end of the elastic connection structure far from the pressing plate, and are provided with the third through-hole being connected to second through-hole.The one end of the magnetic connecting structure far from the elastic connection structure and cover board magnetic attracting, to extrude and fix electrode slice, so that electrode slice can be welded in battery core by laser welding device by the first through hole, the second through-hole and third through-hole.By above-mentioned setting, can improve in the prior art by electrode slice be welded in battery core there is a problem of it is inconvenient.
Description
Technical field
The utility model is related to electrode welding technical fields, in particular to a kind of welding tooling and welding system.
Background technology
With the development of electric vehicle, power supply device of the battery modules as electric vehicle has obtained extensive pass
Note.Wherein, multiple battery cores in battery modules are generally required carries out tandem by electrode slice, to realize the connection in series-parallel of multiple battery cores
Connection.Through inventor the study found that existing be welded in electrode slice has inconvenience in the technology of battery core.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of welding tooling and welding system, to improve existing skill
Electrode slice is welded in battery core in art and there is a problem of inconvenience.
To achieve the above object, the utility model embodiment adopts the following technical scheme that：
A kind of welding tooling, for welding battery modules, the battery modules include battery core, positioned at described battery core one end
Cover board and positioned at electrode slice of the cover board far from the battery core side, the welding tooling includes：
Pressing plate, the pressing plate are provided with first through hole；
One end of elastic connection structure, the elastic connection structure is set to the first through hole, and is provided with and described
Second through-hole of one through-hole connection；
Magnetic connecting structure, the magnetic connecting structure are set to the one end of the elastic connection structure far from the pressing plate,
And it is provided with the third through-hole being connected to second through-hole；
Wherein, the one end of the magnetic connecting structure far from the elastic connection structure and the cover board magnetic attracting, with
The electrode slice is extruded and fixed, so that laser welding device can pass through the first through hole, the second through-hole and third through-hole
The electrode slice is welded in the battery core.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the magnetic connecting structure includes：
The first component, the first component are connect with the one end of the elastic connection structure far from the pressing plate；
Second component, which connect with the one end of the first component far from the elastic connection structure, and institute
Stating second component has magnetic part.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the first component and described
Two components are hollow structure, to form the third through-hole；
Wherein, the first component is provided with the fourth hole not parallel with the setting direction of the third through-hole, with even
Lead to the hollow space and exterior space of the first component.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the second component, which also has, to be protected
Guard, the guard member are sheathed on the magnetic part and cover the outer surface of the magnetic part.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the first through hole is multiple, institute
It is multiple to state elastic connection structure, and the magnetic connecting structure is multiple；
Wherein, the first through hole, the elastic connection structure are identical with the quantity of the magnetic connecting structure, and one by one
It is correspondingly arranged.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the elastic connection structure is spiral shell
Revolve shape spring.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, further include：
Guide frame, which is hollow structure, and is sheathed on the elastic connection structure and magnetic connecting structure.
In the utility model embodiment preferably selects, in above-mentioned welding tooling, the first through hole includes：
One end of first part, the first part is through to one side of the pressing plate far from the elastic connection structure；
Second part, the sectional area of the second part are more than the sectional area of the first part, and with the elastic connection
Structure matches, the elastic connection structure is arranged；
Part III, the sectional area of the Part III are more than the sectional area of the second part, and with the guide frame
Match, so that the guide frame can be moved to the Part III when the elastic connection structure compresses.
The utility model embodiment additionally provides a kind of welding system, for welding battery modules, the battery modules packet
Include battery core, positioned at the cover board of described battery core one end and positioned at electrode slice of the cover board far from the battery core side, the weldering
Welding system includes laser welding device and welding tooling, and the welding tooling includes：
Pressing plate, the pressing plate are provided with first through hole；
One end of elastic connection structure, the elastic connection structure is set to the first through hole, and is provided with and described
Second through-hole of one through-hole connection；
Magnetic connecting structure, the magnetic connecting structure are set to the one end of the elastic connection structure far from the pressing plate,
And it is provided with the third through-hole being connected to second through-hole；
Wherein, the one end of the magnetic connecting structure far from the elastic connection structure and the cover board magnetic attracting, with
The electrode slice is extruded and fixed, so that the laser welding device can pass through the first through hole, the second through-hole and third
The electrode slice is welded in the battery core by through-hole.
In the utility model embodiment preferably selects, in above-mentioned welding system, the cover board includes being located at
First cover board and the second cover board at the battery core both ends, the electrode slice include being located at first cover board far from the battery core one
The electrode film of side and positioned at negative electrode plate of second cover board far from the battery core side；
Wherein, the welding tooling is two groups, the electrode film is fixed on the first cover board, by the negative electricity respectively
Pole piece is fixed on second cover board.
Welding tooling and welding system provided by the utility model pass through pressing plate, elastic connection structure and magnetic connection
Structure is equipped with, and may be implemented quickly and easily electrode slice to be fixed to complete welding job, and complete in welding
The fast quick-detach by welding tooling and battery modules may be implemented afterwards, so as to improve in the prior art because using welding auxiliary equipment
Fixed electrode film and there is a problem of it is fixed inconvenient with dismounting.
Further, by the way that fourth hole is arranged on magnetic connecting structure, the light across third through-hole can be made to transmit
To the perimeter of magnetic connecting structure, to reduce the light reflection inside magnetic connecting structure, and then avoid due to excessive
Light reflection and cause optical camera to there is a problem of that measurement accuracy is low when carrying out ranging.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
Fig. 1 is the application schematic diagram for the welding tooling that the utility model embodiment provides.
Fig. 2 is the structural schematic diagram for the welding tooling that the utility model embodiment provides.
Fig. 3 is the relativeness figure of welding tooling and electrode slice that the utility model embodiment provides.
Fig. 4 is another structural schematic diagram for the welding tooling that the utility model embodiment provides.
Fig. 5 is another structural schematic diagram for the welding tooling that the utility model embodiment provides.
Fig. 6 is the structural schematic diagram for the first through hole that the utility model embodiment provides.
Icon：100- welding toolings；110- pressing plates；111- first through hole；112- first parts；113- second parts；
114- Part III；130- elastic connection structures；150- magnetic connecting structures；The 151- first components；151a- fourth holes；
153- second components；170- guide frames；200- battery modules；210- battery cores；230- cover boards；250- electrode slices.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In the utility model
In description, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as only or imply
Relative importance.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is new in this practicality with concrete condition
Concrete meaning in type.
As shown in Figure 1, the utility model embodiment provides a kind of welding system, for welding battery modules 200.Its
In, the welding system include laser welding device and for assist the laser welding device to the battery modules 200 into
The welding tooling 100 of row welding.
Further, in the present embodiment, the battery modules 200 include battery core 210, cover board 230 and electrode slice
250.The cover board 230 is located at one end of the battery core 210, and is provided with connecting hole.The electrode slice 250 is located at the cover board
230 sides far from the battery core 210, and lug is provided with to pass through the connecting hole to be welded in the battery core 210.
In view of the battery core 210 includes anode and cathode, correspondingly, the cover board 230 may include being located at the electricity
The first cover board and the second cover board of core 210 anode and cathode both ends, the electrode slice 250 include separate positioned at first cover board
The electrode film of 210 side of the battery core and positioned at the negative electrode plate of second cover board far from 210 side of the battery core.Its
In, the lug of the electrode film can be welded in the anode of the battery core 210 across the connecting hole of first cover board, described
The lug of negative electrode plate can pass through the cathode of the connecting hole welding and the battery core 210 of second cover board.
Optionally, the quantity of the welding tooling 100 is unrestricted, for example, either one group, with according to certain elder generation
Sequence welding electrode film and negative electrode plate afterwards, can also be two groups, the electrode film and the negative electrode is respectively welded
Piece.In the present embodiment, the welding tooling 100 is two groups, the electrode film is fixed on the first cover board, by institute respectively
It states negative electrode plate and is fixed on second cover board.
In conjunction with Fig. 2 and Fig. 3, the utility model embodiment also provides a kind of welding tooling can be applied to above-mentioned welding system
100.Wherein, the welding tooling 100 includes pressing plate 110, elastic connection structure 130 and magnetic connecting structure 150.
Further, in the present embodiment, the pressing plate 110 is provided with first through hole 111.The elastic connection structure
130 one end is set to the first through hole 111, and is provided with the second through-hole being connected to the first through hole 111.The magnetic
Property connection structure 150 is set to the one end of the elastic connection structure 130 far from the pressing plate 110, and is provided with and described
The third through-hole of two through-holes connection.
Wherein, the one end of the magnetic connecting structure 150 far from the elastic connection structure 130 and 230 magnetic of the cover board
Property be attracted, to extrude and fix the electrode slice 250, so that laser welding device can pass through the first through hole 111, second
The electrode slice 250 is welded in the battery core 210 by through-hole and third through-hole.
It, can be quickly and easily right by the setting of the magnetic connecting structure 150 and 230 magnetic attracting of the cover board
The electrode slice 250 is fixed on the cover board 230, and can easily dismantle the Welder after completing laser welding
Fill 100.
Optionally, the shape of the pressing plate 110, thickness are unrestricted, can be configured according to actual demand, for example,
It can be rectangular, round or irregular shape.In the present embodiment, the pressing plate 110 is cube structure.
Optionally, the quantity of the first through hole 111 is unrestricted, can be according to battery core 210 in the battery modules 200
Quantity be configured.In the present embodiment, the battery core 210 is multiple, and the first through hole 111 is multiple.Also, it is described
The quantity of first through hole 111 is identical as the quantity of the battery core 210, and is arranged in a one-to-one correspondence.
Wherein, correspondingly, the elastic connection structure 130 is multiple, and the magnetic connecting structure 150 is multiple.Also,
The first through hole 111, the elastic connection structure 130 are identical with the quantity of the magnetic connecting structure 150, and correspond
Setting.
Optionally, the distribution mode of multiple first through hole 111 is unrestricted, can be set according to actual demand
It sets, for example, can be configured according to 210 distribution mode of battery core in battery modules 200.In the present embodiment, the battery
Module 200 includes the battery core 210 that multiple lines and multiple rows are in matrix distribution, for ease of the welding to each battery core 210, multiple described the
One through-hole 111 is in matrix distribution.
Optionally, the shape of the first through hole 111 is unrestricted, can be configured according to actual demand, for example, both
It can be round, can also be rectangular, can also be irregular shape.In the present embodiment, the first through hole 111 is circle
Shape through-hole.
Optionally, the shape of the elastic connection structure 130 is unrestricted, as long as being with certain deformation recovery capability
It can.In the present embodiment, the elastic connection structure 130 is spiral spring.
Wherein, the elastic connection structure 130 and 110 connection type of the pressing plate are unrestricted, either one at
Type can also be detachable connection with fixation.In the present embodiment, the elastic connection structure 130 can with the pressing plate 110
It is detachably connected with, in order to be maintained or replaced respectively.
In conjunction with Fig. 4, in the present embodiment, the magnetic connecting structure 150 may include the first component 151 and second component
153.The first component 151 is connect with the one end of the elastic connection structure 130 far from the pressing plate 110.The second component
153 connect with the one end of the first component 151 far from the elastic connection structure 130, and the second component 153 has magnetic
Property part, with 230 magnetic attracting of the cover board.
Wherein, the first component 151 and the second component 153 are hollow structure, to form the third through-hole.For
Avoid leading to optical camera inside magnetic connecting structure 150 due to excessive light reflection that there are measurement accuracy when carrying out ranging
Low problem is provided with fourth hole 151a in the present embodiment on the first component 151, to be connected to the first component
151 hollow space and exterior space.
Optionally, the setting direction of the fourth hole 151a is unrestricted, for example, either with the third through-hole
Setting direction have certain inclination angle, can also be the setting direction perpendicular to the third through-hole.In the present embodiment, institute
State setting direction of the setting direction perpendicular to the fourth hole 151a of third through-hole.
Wherein, the quantity of the fourth hole 151a is either one, can also be it is multiple, can be according to optical camera
Optical characteristics carry out selection setting.In the present embodiment, the fourth hole 151a is multiple, and multiple fourth holes
151a is uniformly distributed in the first component 151.
In view of the magnetic part is magnet, there are problems that being easily damaged, in the present embodiment, the second component
153 also have guard member.Wherein, the guard member is sheathed on the magnetic part and covers the outer surface of the magnetic part.
In conjunction with Fig. 5, in the present embodiment, the welding tooling 100 can also include guide frame 170, described in raising
Connective stability between pressing plate 110 and the magnetic connecting structure 150.Wherein, the guide frame 170 is hollow structure,
It is sheathed on the elastic connection structure 130 and the magnetic connecting structure 150.
Optionally, the opposite position of the guide frame 170 and the elastic connection structure 130 and magnetic connecting structure 150
It is unrestricted to set relationship, can be configured according to actual demand.In the present embodiment, the elastic connection structure 130 is in
When normal condition, the guide frame 170 covers the subregion of the elastic connection structure 130 and magnetic connecting structure 150,
When the elastic connection structure 130 is in compressive state, the guide frame 170 covers the elastic connection structure 130 simultaneously
The pressing plate 110 is extended to, and the first through hole 111 of the pressing plate 110 is fixed in one end.
Further, for ease of the fixation of the setting and the guide frame 170 of the elastic connection structure 130, at this
In embodiment, in conjunction with Fig. 6, the first through hole 111 may include first part 112, second part 113 and Part III
114。
Wherein, one end of the first part 112 is through to the pressing plate 110 far from the elastic connection structure 130
On one side.The sectional area of the second part 113 be more than the first part 112 sectional area, and with the elastic connection structure
130 match, the elastic connection structure 130 is arranged.The sectional area of the Part III 114 is more than the second part
113 sectional area, and match with the guide frame 170, so that the guide frame 170 can be in the elastic connection knot
Structure 130 is moved to the Part III 114 when compressing.
In conclusion welding tooling 100 provided by the utility model and welding system, pass through pressing plate 110, elastic connection knot
Being equipped with for structure 130 and magnetic connecting structure 150, may be implemented that quickly and easily electrode slice 250 is fixed with complete
At welding job, and may be implemented by the fast quick-detach of welding tooling 100 and battery modules 200, to change after the completion of welding
It is kind to there is a problem of in the prior art because using welding auxiliary equipment fixed electrode film 250 fixed and dismantle inconvenience.Secondly, lead to
The setting fourth hole 151a on magnetic connecting structure 150 is crossed, the light across third through-hole can be made to be transferred to magnetic connection knot
The perimeter of structure 150 to reduce the light reflection inside magnetic connecting structure 150, and then is avoided due to excessive light reflection
And optical camera is caused to there is a problem of that measurement accuracy is low when carrying out ranging.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of welding tooling, for welding battery modules, which is characterized in that the battery modules include battery core, positioned at described
The cover board of battery core one end and positioned at electrode slice of the cover board far from the battery core side, the welding tooling includes：
Pressing plate, the pressing plate are provided with first through hole；
One end of elastic connection structure, the elastic connection structure is set to the first through hole, and is provided with and leads to described first
Second through-hole of hole connection；
Magnetic connecting structure, which is set to the one end of the elastic connection structure far from the pressing plate, and sets
It is equipped with the third through-hole being connected to second through-hole；
Wherein, the one end of the magnetic connecting structure far from the elastic connection structure and the cover board magnetic attracting, to squeeze
And the fixed electrode slice, so that laser welding device can be by the first through hole, the second through-hole and third through-hole by institute
It states electrode slice and is welded in the battery core.
2. welding tooling according to claim 1, which is characterized in that the magnetic connecting structure includes：
The first component, the first component are connect with the one end of the elastic connection structure far from the pressing plate；
Second component, the second component are connect with the one end of the first component far from the elastic connection structure, and described
Two components have magnetic part.
3. welding tooling according to claim 2, which is characterized in that the first component and the second component are hollow
Structure, to form the third through-hole；
Wherein, the first component is provided with the fourth hole not parallel with the setting direction of the third through-hole, to be connected to
State the hollow space and exterior space of the first component.
4. welding tooling according to claim 2, which is characterized in that the second component also has guard member, the protection
Part is sheathed on the magnetic part and covers the outer surface of the magnetic part.
5. welding tooling according to any one of claims 1-4, which is characterized in that the first through hole is multiple, institute
It is multiple to state elastic connection structure, and the magnetic connecting structure is multiple；
Wherein, the first through hole, the elastic connection structure are identical with the quantity of the magnetic connecting structure, and correspond
Setting.
6. welding tooling according to any one of claims 1-4, which is characterized in that the elastic connection structure is spiral
Shape spring.
7. welding tooling according to any one of claims 1-4, which is characterized in that further include：
Guide frame, which is hollow structure, and is sheathed on the elastic connection structure and magnetic connecting structure.
8. welding tooling according to claim 7, which is characterized in that the first through hole includes：
One end of first part, the first part is through to one side of the pressing plate far from the elastic connection structure；
Second part, the sectional area of the second part are more than the sectional area of the first part, and with the elastic connection structure
Match, the elastic connection structure is arranged；
Part III, the sectional area of the Part III are more than the sectional area of the second part, and with the guide frame phase
Match, so that the guide frame can be moved to the Part III when the elastic connection structure compresses.
9. a kind of welding system, for welding battery modules, which is characterized in that the battery modules include battery core, positioned at described
The cover board of battery core one end and positioned at electrode slice of the cover board far from the battery core side, the welding system includes Laser Welding
Device and welding tooling are connect, the welding tooling includes：
Pressing plate, the pressing plate are provided with first through hole；
One end of elastic connection structure, the elastic connection structure is set to the first through hole, and is provided with and leads to described first
Second through-hole of hole connection；
Magnetic connecting structure, which is set to the one end of the elastic connection structure far from the pressing plate, and sets
It is equipped with the third through-hole being connected to second through-hole；
Wherein, the one end of the magnetic connecting structure far from the elastic connection structure and the cover board magnetic attracting, to squeeze
And the fixed electrode slice, so that the laser welding device can pass through the first through hole, the second through-hole and third through-hole
The electrode slice is welded in the battery core.
10. the welding system according to claim 9, which is characterized in that the cover board includes being located at the battery core two
First cover board and the second cover board at end, the electrode slice include being located at positive electrode of first cover board far from the battery core side
Piece and positioned at negative electrode plate of second cover board far from the battery core side；
Wherein, the welding tooling is two groups, the electrode film is fixed on the first cover board, by the negative electrode plate respectively
It is fixed on second cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171913.3U CN207788125U (en) | 2018-01-31 | 2018-01-31 | Welding tooling and welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171913.3U CN207788125U (en) | 2018-01-31 | 2018-01-31 | Welding tooling and welding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207788125U true CN207788125U (en) | 2018-08-31 |
Family
ID=63267701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820171913.3U Active CN207788125U (en) | 2018-01-31 | 2018-01-31 | Welding tooling and welding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067801A (en) * | 2018-01-31 | 2018-05-25 | 华霆（合肥）动力技术有限公司 | Welding tooling and welding system |
| CN115213513A (en) * | 2022-07-14 | 2022-10-21 | 中国电子科技集团公司第二十九研究所 | Multi-chip vacuum eutectic welding device and method |
-
2018
- 2018-01-31 CN CN201820171913.3U patent/CN207788125U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067801A (en) * | 2018-01-31 | 2018-05-25 | 华霆（合肥）动力技术有限公司 | Welding tooling and welding system |
| CN108067801B (en) * | 2018-01-31 | 2024-05-07 | 华霆（合肥）动力技术有限公司 | Welding tool and welding system |
| CN115213513A (en) * | 2022-07-14 | 2022-10-21 | 中国电子科技集团公司第二十九研究所 | Multi-chip vacuum eutectic welding device and method |
| CN115213513B (en) * | 2022-07-14 | 2023-09-26 | 中国电子科技集团公司第二十九研究所 | Multi-chip vacuum eutectic welding device and method |
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