CN113118685B - Novel butterfly welds device - Google Patents
Novel butterfly welds device Download PDFInfo
- Publication number
- CN113118685B CN113118685B CN202110244611.0A CN202110244611A CN113118685B CN 113118685 B CN113118685 B CN 113118685B CN 202110244611 A CN202110244611 A CN 202110244611A CN 113118685 B CN113118685 B CN 113118685B
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- tightening
- limiting
- battery cell
- pressure head
- plate
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- 230000000670 limiting effect Effects 0.000 claims abstract description 67
- 238000003466 welding Methods 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a novel butterfly welding device, which comprises a positioning platform, the battery cover plate, the dry battery cell and the dry battery cell connecting sheet are used for positioning; the battery cell limiting and pre-tightening structure is used for positioning the dry battery cell; the pressure head structure is used for positioning the battery cover plate and the dry battery cell connecting sheet; the battery cell limiting pre-tightening structure comprises a pre-tightening plate, a pre-tightening spring and a guide post, wherein the pre-tightening spring is sleeved on the guide post and used for driving the pre-tightening plate to extrude the dry battery cell, the battery cell limiting pre-tightening structure further comprises a limiting structure used for limiting the movable distance of the pre-tightening plate, and the pre-tightening spring is always in a compressed state. Aiming at the technical problem of inaccurate dry cell limit in the prior art, the invention provides a novel butterfly welding device which can play a role in repeatedly limiting the dry cell position and ensure the consistency of the dry cell position.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a novel butterfly welding device.
Background
The main core components of the aluminum shell battery comprise a battery core, an aluminum shell, a cover plate, electrolyte, a connecting sheet, a PET film, an adhesive tape and the like, the importance of the performance and the safety of the battery core is self-evident, the battery core assembly quality directly determines the battery safety, the electrical performance (capacity, energy, internal resistance and the like) and the electrochemical reaction, and the battery core assembly mode mainly directly influences the dry battery core assembly quality, the ultrasonic welding quality, the laser welding quality and the related raw material quality.
In addition, with the development of industry, the requirements of national new energy related standards are met, the energy density of a battery is required to be higher and higher, lithium battery production enterprises also develop with the industry, the energy density of the battery is higher and higher, but the problems are more and more faced under the background that the energy density of the battery is higher and higher, firstly, the current ultrasonic equipment for welding the tab at home and abroad is basically within 6.5KW, the higher the energy density is, the more the number of battery pole pieces is, and one battery core cannot finish tab welding at one time, so that butterfly welding becomes the main development flow with the development of industry. 2. The larger the energy density is, the larger the size of the battery is, so that the higher the utilization rate of the content space of the battery cell is, the more difficult the battery cell is put into the shell, and the higher the requirement on the consistency of the dry battery cell is.
Compared with butterfly welding and dry cell assembly quality, the current lithium battery industry basically adopts manufacturing dry cells (namely, laminating or winding positive and negative electrode plates and diaphragms into cells), welding lugs of the dry cells and lugs outside the production cells, welding a plurality of dry cells and connecting pieces by ultrasonic welding, connecting the dry cells with the connecting pieces with cover plate lugs by ultrasonic welding preferentially, and connecting the dry cells with the connecting pieces by laser welding basically, so that the quality of the butterfly welding cell directly influences the quality of the dry cells, the limit inaccuracy of the dry cells leads to the phenomena of shell pulling and shell inserting difficulty of the dry cells, breakage of the lugs of the dry cells, short circuit caused by the collision of the lugs, and the like, and the poor shell inserting also directly influences the liquid injection electrical property, even serious battery problems exist.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the technical problem of inaccurate dry cell limit in the prior art, the invention provides a novel butterfly welding device which can play a role in repeatedly limiting the dry cell position and ensure the consistency of the dry cell position.
2. Technical proposal
In order to solve the problems, the technical scheme provided by the invention is as follows:
the novel butterfly welding device comprises a positioning platform for positioning a battery cover plate, a dry battery cell and a dry battery cell connecting sheet; the battery cell limiting and pre-tightening structure is used for positioning the dry battery cell; the pressure head structure is used for positioning the battery cover plate and the dry battery cell connecting sheet; the battery cell limiting pre-tightening structure comprises a pre-tightening plate, a pre-tightening spring and a guide post, wherein the pre-tightening spring is sleeved on the guide post and used for driving the pre-tightening plate to extrude the dry battery cell, the battery cell limiting pre-tightening structure further comprises a limiting structure used for limiting the movable distance of the pre-tightening plate, and the pre-tightening spring is always in a compressed state.
Optionally, limit structure includes the limiting plate that is located the location platform outside, guide post one end links firmly on the pretension board, and the other end links firmly on the limiting plate, have the guide way on the location platform, install on the location platform with guide post matched with guide bearing, guide bearing offsets with pretension spring outer end in order to restrict pretension spring outward motion.
Optionally, the device also comprises a handle for controlling the action of the limiting plate.
Optionally, a limiting strip is arranged on the handle, a limiting groove matched with the limiting strip is arranged on the positioning platform, the limiting strip can slide in the limiting groove until abutting against the end part of the limiting groove, and the pre-tightening plate is located at the pre-tightening position.
Optionally, the handle is rotatable with the limiting plate and is connected, be equipped with on the location platform and be the logical groove of certain angle dislocation setting with the spacing groove.
Optionally, the limiting pretension structure of electric core is provided with one respectively in the location platform both sides.
Optionally, the pressure head structure includes the pressure head, be equipped with a plurality of guide bars on the location platform, be equipped with a plurality of and guide bar one-to-one's guiding hole on the pressure head.
Optionally, the pressure head includes first pressure head and the second pressure head that sets up from top to bottom, but first pressure head and second pressure head relative action just are equipped with a plurality of expansion springs, the guiding hole is located on the second pressure head.
Optionally, the opening at the lower end of the guide hole is in a flaring shape.
Optionally, a plurality of stoppers for limiting the lateral sliding of the dry battery cells are arranged on the positioning platform.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The utility model discloses butterfly welds device because limit structure's spacing effect, guarantees that the pretension board stops at fixed position at every turn, and the deformation length at every turn of pretension spring keeps fixed, and the pretension force release of pretension spring just no longer releases to a certain extent, has guaranteed that the pretension force that produces at every turn when fixing a position is unanimous, plays the effect of the dry electric core position of repetition spacing, ensures the uniformity of dry electric core position.
(2) The utility model discloses butterfly welds device can effectively avoid dry battery spacing inaccurate to lead to dry electric core to go into the shell and pull and go into the shell difficultly, leads to dry electric core tab fracture and tab to bump the wall and lead to phenomenon such as short circuit, also is favorable to producing batch production and reduces risks such as manual error, has improved the product quality, guarantees electric core inner space uniformity, ensures that electric core is inside annotates liquid measure and performance parameter and also ensures battery safety.
Drawings
Fig. 1 is a schematic structural diagram of a novel butterfly welding device according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a novel butterfly welding device according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a novel butterfly welding device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a limiting and pre-tightening structure of a battery cell in a novel butterfly welding device according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a ram in a novel butterfly welding device according to an embodiment of the present invention.
1. Positioning a platform; 1a, a guide groove; 1b, a limit groove; 1c, through grooves; 2. limiting and pre-tightening structure of the battery cell; 21. a pre-tightening plate; 22. a pre-tightening spring; 23. a guide post; 3. a pressure head; 3a, a guide hole; 31. a first ram; 32. a second ram; 4. a limiting plate; 5. a guide bearing; 6. a handle; 61. a limit bar; 62. clamping springs; 7. a guide rod; 8. and a stop block.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to FIGS. 1-5 and examples.
1-5, the novel butterfly welding device of the embodiment comprises a positioning platform 1 for positioning a battery cover plate, a dry battery cell and a dry battery cell connecting sheet; the cell limiting pre-tightening structure 2 is used for positioning the dry cell; the pressure head structure is used for positioning the battery cover plate and the dry battery cell connecting sheet; the battery cell limiting pre-tightening structure 2 comprises a pre-tightening plate 21, a pre-tightening spring 22 and a guide post 23, wherein the pre-tightening plate 21 is positioned on the inner side of the positioning platform 1 and can act towards one side to extrude a dry battery cell, the pre-tightening spring 22 is sleeved on the guide post 23, the guide post 23 can move relative to the positioning platform 1 to achieve the aim of synchronously acting with the pre-tightening plate 21, the pre-tightening spring 22 is used for driving the pre-tightening plate 21 to extrude the dry battery cell, the battery cell limiting structure further comprises a limiting structure used for limiting the moving distance of the pre-tightening plate 21, and the pre-tightening spring 22 is always in a compressed state.
The novel butterfly welding device drives the pre-tightening plate 21 to extrude the dry battery cell through the elastic acting force of the pre-tightening spring 22, the pre-tightening plate 21 is always vertical to the dry battery cell and extrudes the dry battery cell through the guiding action of the guide post 23, the pre-tightening plate 21 is ensured to stop at a fixed position each time due to the limiting action of the limiting structure, the deformation length of the pre-tightening spring 22 each time is kept fixed, the pre-tightening force of the pre-tightening spring 22 is released to a certain extent and is not released any more, the pre-tightening force generated during each positioning is ensured to be consistent, the effect of repeatedly limiting the position of the dry battery cell is achieved, and the consistency of the position of the dry battery cell is ensured; the pressure head structure fully presses the connecting sheet to the battery core electrode post, so that the processing error of the battery connecting sheet and the electrode post is avoided; the utility model discloses butterfly welds device can effectively avoid dry battery spacing inaccurate to lead to dry electric core to go into the shell and pull and go into the shell difficultly, leads to dry electric core tab fracture and tab to bump the wall and lead to phenomenon such as short circuit, also is favorable to producing batch production and reduces risks such as manual error, has improved the product quality, guarantees electric core inner space uniformity, ensures that electric core is inside annotates liquid measure and performance parameter and also ensures battery safety.
As an alternative scheme of the invention, the limiting structure comprises a limiting plate 4 positioned at the outer side of the positioning platform 1, the pre-tightening plate 21 and the limiting plate 4 are respectively positioned at the inner side and the outer side of the same end part of the positioning platform 1, one end of the guide post 23 is fixedly connected to the pre-tightening plate 21, the other end of the guide post 23 is fixedly connected to the limiting plate 4, the positioning platform 1 is provided with a guide groove 1a, the guide post 23 penetrates through the guide groove 1a, the positioning platform 1 is provided with a guide bearing 5 matched with the guide post 23, the guide bearing 5 is arranged at the opening of the outer end of the guide groove 1a, the guide bearing 5 abuts against the outer end of the pre-tightening spring 22 to limit the outward movement of the pre-tightening spring 22, when the limiting plate 4 abuts against the end part of the positioning platform 1, the pre-tightening plate 21 cannot continue to move inwards, as the limiting plate 4 and the pre-tightening plate 21 are fixedly connected together through the guide post 23, the limiting position of each time of the pre-tightening plate 21 is fixed, the deformation length of each time of the pre-tightening spring 22 is unchanged, and the position of each dry cell is ensured.
As an alternative to the present invention, in order to facilitate pulling of the limiting plate 4, a handle 6 for controlling the movement of the limiting plate 4 is further included.
As an alternative scheme of the present invention, the handle 6 is provided with a limit bar 61, the limit bar 61 is perpendicular to the movement direction of the handle 6 and is fixedly connected with the handle 6, the positioning platform 1 is provided with a limit groove 1b matched with the limit bar 61, one side of the limit groove 1b, which is close to the handle 6, is opened to facilitate the entry and exit of the limit bar 61, the limit bar 61 can slide in the limit groove 1b until abutting against the end of the limit groove 1b, at this time, the pretension plate 21 is located at the pretension position, in this way, the limit plate 4 is not always contacted with the end of the positioning platform 1, and when the limit bar 61 abuts against the end of the limit groove 1b, the position of the limit plate 4 is fixed, so that the pretension position of the pretension plate 21 is synchronously fixed.
As an alternative of the present invention, the handle 6 is rotatably connected to the limiting plate 4, two sides of the limiting plate 4 on the handle 6 are respectively sleeved with the clamping springs 62, the clamping springs 62 on two sides simultaneously support against the limiting plate 4 to make the handle 6 drive the limiting plate 4 to move synchronously, and simultaneously make the handle 6 rotate relative to the limiting plate 4, the positioning platform 1 is provided with a through groove 1c which is offset from the limiting groove 1b by a certain angle, the through groove 1c penetrates through the end of the positioning platform 1, compared with the pre-tightening position of the pre-tightening plate 21 by the abutting of the limiting plate 4 against the positioning platform 1, when not in use, the handle 6 can be pulled outwards to draw the limiting strip 61 out of the limiting groove 1b and rotate by a certain angle to align with the through groove 1c, when not in use, the handle 6 is released, the edge of the limiting strip 61 can enter the through groove 1c, and the pre-tightening spring 22 can deform to an initial state (because no structure can obstruct the movement of the limiting strip 61), and the pre-tightening spring 22 is in the initial state to help to ensure the pre-tightening force generated by the subsequent use when not in use.
As an alternative scheme of the invention, in order to realize the positioning of two dry cells at the same time, the cell limiting and pre-tightening structures 2 are respectively arranged on two sides of the positioning platform 1.
As an alternative scheme of the invention, the pressure head structure comprises a pressure head 3, a plurality of guide rods 7 are arranged on the positioning platform 1, a plurality of guide holes 3a which are matched with the guide rods 7 one by one are arranged on the pressure head 3, the guide rods 7 and the guide holes 3a are matched so that the movement direction of the pressure head 3 is limited, the pressure head 3 descends under the extrusion of an external cylinder to extrude a battery cover plate and a dry battery core connecting sheet to realize positioning, and the dry battery core connecting sheet is placed at a position right above the battery cover plate.
As an alternative scheme of the invention, the press head 3 comprises a first press head 31 and a second press head 32 which are arranged up and down, the first press head 31 and the second press head 32 are movably connected, namely, the first press head 31 and the second press head 32 can relatively act, the first press head 31 and the second press head 32 are provided with a plurality of telescopic springs, the guide hole 3a is arranged on the second press head 32, the press head 3 descends under the extrusion of the air cylinder until the guide rod 7 passes through the second press head 32 to prop against the first press head 31, at the moment, the first press head 31 cannot continuously descend, and the second press head 32 fully compresses the battery cover plate and the dry cell connecting sheet which are arranged below under the elastic force of the telescopic springs, so that the welded object is ensured to be fully contacted with the welded object, and phenomena such as cold welding, fire explosion, explosion point and the like are avoided.
As an alternative scheme of the invention, in order to facilitate the guide rod 7 to enter the guide hole 3a, the opening at the lower end of the guide hole 3a is in a flaring shape, and the flaring-shaped guide hole 3a has certain deviation rectifying capability, so that collision between the guide rod 7 and the pressure head 3 can be effectively prevented.
As an alternative scheme of the invention, a plurality of stoppers 8 for limiting the lateral sliding of the dry battery cell are arranged on the positioning platform 1, and a positioning groove of the dry battery cell is formed between the stoppers 8.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (6)
1. Novel butterfly welds device, its characterized in that: comprising
The positioning platform is used for positioning the battery cover plate, the dry battery cell and the dry battery cell connecting sheet;
the battery cell limiting and pre-tightening structure is used for positioning the dry battery cell;
the pressure head structure is used for positioning the battery cover plate and the dry battery cell connecting sheet;
the battery cell limiting pre-tightening structure comprises a pre-tightening plate, a pre-tightening spring and a guide post, wherein the pre-tightening spring is sleeved on the guide post and is used for driving the pre-tightening plate to extrude the dry battery cell; the limiting structure comprises a limiting plate positioned on the outer side of a positioning platform, one end of the guide post is fixedly connected to the pre-tightening plate, the other end of the guide post is fixedly connected to the limiting plate, the positioning platform is provided with a guide groove, a guide bearing matched with the guide post is arranged on the positioning platform, and the guide bearing abuts against the outer end of the pre-tightening spring to limit the outward movement of the pre-tightening spring; the device also comprises a handle for controlling the action of the limiting plate; the handle is provided with a limit bar, the positioning platform is provided with a limit groove matched with the limit bar, the limit bar can slide in the limit groove until the limit bar abuts against the end part of the limit groove, and the pre-tightening plate is positioned at the pre-tightening position; the handle is rotatably connected with the limiting plate, and the positioning platform is provided with a through groove which is staggered with the limiting groove by a certain angle.
2. A novel butterfly welding device according to claim 1, wherein: the battery cell limiting pre-tightening structure is respectively arranged on two sides of the positioning platform.
3. A novel butterfly welding device according to claim 1 or 2, characterized in that: the pressure head structure comprises a pressure head, a plurality of guide rods are arranged on the positioning platform, and a plurality of guide holes matched with the guide rods one by one are formed in the pressure head.
4. A novel butterfly welding device according to claim 3, wherein: the pressure head comprises a first pressure head and a second pressure head which are arranged up and down, the first pressure head and the second pressure head can move relatively and are provided with a plurality of telescopic springs, and the guide hole is arranged on the second pressure head.
5. A novel butterfly welding device according to claim 3, wherein: the lower end opening of the guide hole is flaring.
6. A novel butterfly welding device according to claim 1, wherein: and a plurality of stop blocks for limiting the dry battery cell to slide laterally are arranged on the positioning platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110244611.0A CN113118685B (en) | 2021-03-05 | 2021-03-05 | Novel butterfly welds device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110244611.0A CN113118685B (en) | 2021-03-05 | 2021-03-05 | Novel butterfly welds device |
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| Publication Number | Publication Date |
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| CN113118685A CN113118685A (en) | 2021-07-16 |
| CN113118685B true CN113118685B (en) | 2023-06-02 |
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| CN113857746A (en) * | 2021-09-30 | 2021-12-31 | 长沙格力暖通制冷设备有限公司 | Riveting tool and using method thereof |
| CN115740899A (en) * | 2022-10-28 | 2023-03-07 | 武汉羿变电气有限公司 | DBC welding limiting die for power module |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202550005U (en) * | 2012-04-23 | 2012-11-21 | 中航锂电（洛阳）有限公司 | Battery cell retaining clamp |
| CN204075519U (en) * | 2014-09-01 | 2015-01-07 | 惠州Tcl金能电池有限公司 | Battery pole ear auxiliary device for laser welding |
| CN206717300U (en) * | 2017-05-16 | 2017-12-08 | 宁德时代新能源科技股份有限公司 | Battery core welding tooling |
| CN206898683U (en) * | 2017-07-12 | 2018-01-19 | 鹤壁市诺信电子有限公司 | A kind of lithium battery group welding clamp |
| CN207043636U (en) * | 2017-08-04 | 2018-02-27 | 无锡先导智能装备股份有限公司 | A kind of battery core fixture and fixture device for opening |
| CN208880023U (en) * | 2018-09-20 | 2019-05-21 | 中兴高能技术有限责任公司 | A kind of welding tooling of battery core |
| CN209272804U (en) * | 2018-11-07 | 2019-08-20 | 力信（江苏）能源科技有限责任公司 | Lithium ion battery butterfly welds positioning tool |
| CN209963170U (en) * | 2019-04-16 | 2020-01-17 | 广东嘉拓新能源科技有限公司 | Lithium cell electricity core scalds limit device |
| CN211840590U (en) * | 2020-03-13 | 2020-11-03 | 中瑞联科(天津)新能源技术有限公司 | Laser welding pressing plate for modular battery module |
| CN111900299B (en) * | 2020-08-12 | 2023-12-12 | 浙江南都电源动力股份有限公司 | Aluminum shell battery module frame and welding tool thereof |
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