CN212094832U - Utmost point ear welding set and electricity core module production facility - Google Patents
Utmost point ear welding set and electricity core module production facility Download PDFInfo
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- CN212094832U CN212094832U CN202020406219.2U CN202020406219U CN212094832U CN 212094832 U CN212094832 U CN 212094832U CN 202020406219 U CN202020406219 U CN 202020406219U CN 212094832 U CN212094832 U CN 212094832U
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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
The utility model provides a utmost point ear welding set and electric core module production facility, utmost point ear welding set are used for welding the utmost point ear after will bending to electric core module, including moving platform and the pressure subassembly, pressure head and the laser-beam welding ware of connecting on moving platform's drive end, wherein: the pressing component is at least arranged on one side of the pressure head, and the end part of the pressing component extends outwards to form the pressure head; when moving platform drive presses subassembly, pressure head and laser-beam welding ware and moves towards utmost point ear, presses the subassembly and presses utmost point ear to electric core module, and the pressure head will press to the utmost point ear of electric core module and compress tightly to electric core module, and the laser-beam welding ware will compress tightly to the utmost point ear welding of electric core module to electric core module. The utility model discloses a set up the pressure subassembly, before the pressure head compressed tightly utmost point ear, the pressure subassembly pressed utmost point ear earlier to electric core module on to make the pressure head can compress tightly utmost point ear intact to electric core module, finally promoted the welding effect, prevented the rosin joint.
Description
Technical Field
The utility model belongs to the technical field of battery production and specifically relates to a utmost point ear welding set and electricity core module production facility.
Background
The soft package battery is used as an important branch of the lithium battery, and is widely applied to the fields of new energy automobiles, 3C products, energy storage and the like due to the advantages of good safety performance, light weight, large battery capacity, good cycle performance and the like.
In the production process of the soft-package lithium battery, a process of welding the tab to the battery pack assembly is provided. Since the tab to be welded is perpendicular to the surface of the electric core assembly in the initial state, the tab is generally bent and then welded. In the welding process, the welding pressure head of the tab welding device compresses the bent tabs to the cell assembly, and the welding head (generally a laser welder) welds the tabs compressed to the cell assembly.
Referring to fig. 1 to 2, the conventional tab welding apparatus has the following technical disadvantages: as shown in fig. 1, the distance between the bent tab 100 and the surface of the core assembly 200 is too large. For the tab 100 with a short length, as shown in fig. 2, the welding pressure head 300 of the tab welding device cannot completely press the tab 200 onto the surface of the electric core assembly 200, the end of the tab 200 is in a tilted state, and a cold joint is easily caused during the welding process.
SUMMERY OF THE UTILITY MODEL
The above-mentioned technical defect to current utmost point ear welding set existence, the utility model discloses the first aspect provides an utmost point ear welding set, the technical scheme of the utility model as follows:
the utility model provides a utmost point ear welding set for the utmost point ear welding after will bending to electric core module, this utmost point ear welding set includes moving platform and connects the subassembly, pressure head and the laser welder that press on moving platform's drive end, wherein:
the pressing component is at least arranged on one side of the pressure head, and the end part of the pressing component extends outwards to form the pressure head;
when moving platform drive presses subassembly, pressure head and laser-beam welding ware and moves towards utmost point ear, presses the subassembly and presses utmost point ear to electric core module, and the pressure head will press to the utmost point ear of electric core module and compress tightly to electric core module, and the laser-beam welding ware will compress tightly to the utmost point ear welding of electric core module to electric core module.
Through setting up the pressure subassembly, before the pressure head compresses tightly utmost point ear, the pressure subassembly will press utmost point ear to electric core module on earlier to make the pressure head can compress tightly utmost point ear to electric core module completely, finally promoted the welding effect, prevented the rosin joint.
In some embodiments, the biasing assembly comprises a push plate that is yieldable upon compression and a push plate drive mechanism, wherein: the push plate driving mechanism is connected to the driving end of the moving platform, the push plate is connected to the driving end of the push plate driving mechanism, the push plate inclines towards the pressure head, and the push plate driving mechanism is configured to drive the push plate to move so that the end part of the push plate extends outwards out of the pressure head; when moving platform drive presses the subassembly and moves towards utmost point ear, the tip of push pedal is contradicted with electric core module after buckling along electric core module surface in order to press utmost point ear to electric core module on.
The utility model provides a simple structure's the subassembly that presses, its push pedal through setting up easy buckling after the pressurized realizes pressing to utmost point ear, and the push pedal is buckled through self after the pressurized and is out of shape and can press utmost point ear to electric core module on.
In some embodiments, the push plate is an elastic material.
The push pedal of elasticity material is easily buckled and is out of shape after contradicting with electric core module, can kick-back rapidly and reset after leaving electric core module.
In some embodiments, the abutment assemblies are provided in two groups, two groups being located on either side of the pressure head.
The both sides of pressure head all set up the subassembly that presses, can realize pressing to the utmost point ear that lies in any side of pressure head.
In some embodiments, a gap for laser to pass through is formed in the pressure head, and laser emitted by the laser welding device irradiates the tab compressed to the battery cell module through the gap on the pressure head so as to weld the tab to the battery cell module.
Through set up the gap that supplies laser to pass through in the pressure head, the laser that laser welding ware sent shines out through the gap to guarantee that laser welding ware's laser can accurately shine to the utmost point ear that compresses tightly position department, promote welding effect.
In some embodiments, the tab welding device further comprises a distance sensor connected to the driving end of the moving platform, the distance sensor is in signal connection with a control system of the moving platform, the distance sensor is used for acquiring distance information between the laser welder and the tab and sending the acquired distance information to the control system of the moving platform, and the moving platform drives the pressing component, the pressure head and the laser welder to move towards the tab based on the distance information.
Through setting up distance sensor, acquire the distance information between laser welder and the utmost point ear to the drive presses subassembly, pressure head and laser welder and accurately removes utmost point ear position.
In some embodiments, the tab welding device further comprises a suction mechanism connected to the drive end of the movable platform, the suction end of the suction mechanism facing the pressure head.
Through setting up the structure of bleeding, can in time take out the high temperature welding slag that splashes among the welding process, prevent to pollute the board or cause the potential safety hazard.
In some embodiments, the pressure head is connected to the driving end of the moving platform through a mounting plate, a window corresponding to the gap on the pressure head is formed on the mounting plate, and the laser welding device is arranged on one side, away from the pressure head, of the mounting plate; the mounting plate is provided with a blowing mechanism which is configured to blow protective gas into the gap of the pressure head.
Through setting up the mounting panel, be connected to moving platform's drive end with the pressure head on, can provide protective gas when the welding through setting up the mechanism of blowing, guaranteed welding quality.
The utility model discloses the second aspect provides an electricity core module production facility, this electricity core module production facility include that electric core conveyor, utmost point ear processing apparatus, electric core pile up the device, the shell device is gone into to electric core, utmost point ear welding set and electric core detection device, and utmost point ear welding set adopts the utility model discloses the utmost point ear welding set that any embodiment of the first aspect provided, wherein: the battery cell conveying device is used for conveying a battery cell, so that the battery cell sequentially passes through the tab processing device, the battery cell stacking device, the battery cell casing entering device, the tab welding device and the battery cell detection device. The tab processing device is used for leveling, cutting and bending tabs of the battery cell. The battery cell stacking device is used for stacking a preset number of battery cells according to a preset mode. The battery cell casing device is used for packaging the stacked battery cells into a battery cell module. And the lug welding device is used for welding lugs to the battery cell module. The battery cell detection device is used for detecting performance parameters of the battery cell module.
Utilize electric core conveyor, utmost point ear processing apparatus, electric core to pile up device, electric core income shell device, utmost point ear welding set and electric core detection device's cooperation, the utility model discloses an automatic production of electric core module has been realized to electric core module production facility, has promoted production efficiency greatly.
Drawings
Fig. 1 is a schematic diagram showing the relative positions of a pressure head and a tab of a conventional tab welding device in one working state.
Fig. 2 is a schematic diagram showing the relative positions of a pressure head and a tab of a conventional tab welding device in another working state.
Fig. 3 is a schematic structural view of the tab welding device according to the present invention at a first viewing angle;
fig. 4 is a schematic structural view of the tab welding device according to the present invention at a second viewing angle;
fig. 5 is a schematic structural view of the tab welding device of the present invention at a third viewing angle;
fig. 6 is a schematic structural view of the tab welding device of the present invention at a fourth viewing angle;
fig. 7 is a schematic structural view of the tab welding device of the present invention at a viewing angle after the movable platform is omitted;
fig. 8 is a schematic structural view of the tab welding device at another viewing angle after the movable platform is omitted;
fig. 9 is a schematic structural view of a pressing assembly and a pressing head in a tab welding device according to the present invention at a first viewing angle;
fig. 10 is a schematic structural view of the pressing assembly and the pressing head in the tab welding device according to the present invention at a second viewing angle;
fig. 11 is a schematic structural view of the pressing assembly and the pressing head in the tab welding device according to the present invention at a third viewing angle;
fig. 12 is a schematic diagram of the relative positions of the push plate and the pressure head in the tab welding device of the present invention and the tab in the first working state;
fig. 13 is a schematic diagram of the relative positions of the push plate and the pressure head in the tab welding device and the tab in the second working state according to the present invention;
fig. 14 is a schematic diagram of the relative positions of the push plate and the pressure head in the tab welding device and the tab in the third operating state according to the present invention.
Description of reference numerals:
1. a mobile platform; 2. a biasing assembly; 3. a pressure head; 4. a distance sensor; 5. a distance sensor drive mechanism; 6. mounting a plate; 21. pushing the plate; 22. a push plate drive mechanism; 31. a gap; 61. a window; 100. a tab; 200. a battery cell module; 300. and welding a pressure head.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Traditional utmost point ear welding set, its welding pressure head can't compress tightly utmost point ear to electric core subassembly completely on the surface, and the end of utmost point ear is the state of perk, consequently causes the rosin joint easily.
The utility model provides a utmost point ear welding set, as shown in fig. 3 to fig. 6, this utmost point ear welding set includes moving platform 1 and connects the subassembly 2, pressure head 3 and the laser welder (not shown) that press on moving platform 1's drive end.
Wherein, the pressing component 2 is arranged at least on one side of the pressure head 3, and the end part of the pressing component 2 is configured to be capable of extending out of the pressure head 3. Moving platform 1 is used for the drive to press against subassembly 2, pressure head 3 and laser welder and move towards or keep away from electric core group to compress tightly utmost point ear and weld to on the busbar of electric core module.
The movable platform 1 may employ various known driving mechanisms, such as a driving mechanism composed of a driving motor, a guide rail, a screw rod, and the like.
During welding, the end of the pressing assembly 2 extends outwards first beyond the pressure head 3. Moving platform 1 drive presses subassembly 2, pressure head 3 and laser welder towards treating welded utmost point ear and remove, and the tip that presses subassembly 2 first contacts with utmost point ear and presses utmost point ear to electric core module to make the length increase that utmost point ear is located on the welding surface. Moving platform 1 continues the drive and presses subassembly 2, pressure head 3 and laser welder and remove, and pressure head 3 compresses tightly utmost point ear to electric core module completely on. Laser that laser welding ware launches then shines the utmost point ear that is compressed tightly to weld utmost point ear to the electricity core module on.
It is thus clear that, through setting up pressure subassembly 2, before pressure head 3 compressed tightly utmost point ear, pressure subassembly 2 pressed utmost point ear to electric core module earlier to make utmost point ear be located the length increase on the welding surface, guarantee that pressure head 3 can compress tightly utmost point ear to electric core module completely, finally promoted the welding effect, prevented rosin joint.
Optionally, the pressing components 2 can be provided with two sets, the two sets of pressing components 2 are respectively arranged on two sides of the pressure head 3, and in the welding process, the two sets of pressing components 2 can realize pressing of the pole lug on any side of the pressure head 2.
As shown in fig. 7 to 8, the pressing member 2 may alternatively include a push plate 21 which is pliable when pressed and a push plate driving mechanism 22. Wherein: the push plate driving mechanism 22 is connected to the driving end of the moving platform 1, the push plate 21 is inclined towards the pressure head 3, and the push plate driving mechanism 22 is used for driving the push plate 21 to move, so that the end part of the push plate 21 extends outwards out of the pressure head 3.
The push plate driving mechanism 22 may employ various known driving mechanisms such as an air cylinder, a motor, and the like. To achieve a smooth bending and springback of the push plate 21, the push plate 21 is generally made of an elastic material, such as ABS plastic.
As shown in fig. 12, during welding, the push plate drive mechanism 22 moves ahead of the push plate 21 so that the end of the push plate 21 extends outward beyond the ram 3.
As shown in fig. 13, the moving platform 1 drives the pressing component 2, the pressing head 3 and the laser welder to move towards the tab 100 to be welded, and the end of the pushing plate 21 first contacts with the tab 100 and drives the tab 100 against the surface of the core component 200. As the moving platform 1 continues to move, the end of the push plate 21 is abutted against the surface of the electric core assembly 200, and the push plate 21 is pressed and then bent along the surface of the electric core assembly 200 to press the tab 100 against the surface of the electric core assembly 200.
As shown in fig. 14, the moving platform 1 continues to move, and the pressing head 3 contacts the tab 100 and completely presses the tab 100 onto the cell module 200. At this time, laser emitted from the laser welder irradiates the compressed tab 100, so that the tab 100 is effectively welded to the battery cell module 200.
As shown in fig. 9-11, in some embodiments, a laser beam passing slit 31 is formed through the indenter 3 in the indenter 3, and a laser welder is provided on the back of the indenter 3, and laser beams from the laser welder are emitted through the slit 31 in the indenter 3. So, among the welding process, 3 compress tightly utmost point ear to the surperficial back of electric core subassembly when the pressure head, the laser that the laser welder sent can shine to the utmost point ear that is compressed tightly accurately on to further promote welding effect, prevent the rosin joint.
Alternatively, as shown in fig. 9 and 11, the ram 3 is connected to the driving end of the moving platform 1 via a mounting plate 6, a window 61 corresponding to the slit 31 of the ram 3 is formed on the mounting plate 6, and the laser welder is disposed on the side of the mounting plate 6 away from the ram 3. The laser emitted by the laser welding device sequentially penetrates through the window 61 on the mounting plate 6 and the gap 31 on the pressure head 3 and then is emitted.
The mounting plate 6 can be provided with a blowing mechanism which is used for blowing protective gas into a gap of the pressure head 3, thereby ensuring the welding quality
Continuing to refer to fig. 3-5, optionally, the utility model discloses a utmost point ear welding set still includes the distance sensor 4 of connection on moving platform 1's drive end, and distance sensor 4 and moving platform 1's control system signal connection, and distance sensor 4 is used for acquireing the distance information between laser welder and the utmost point ear and sends the distance information who obtains for moving platform 1's control system. The moving platform 1 drives the push plate assembly 2, the pressure head 3 and the laser welder to move towards the pole lug based on the acquired distance information.
Optionally, the distance sensor 4 is connected to a driving end of the distance sensor driving mechanism 5, and when distance measurement is required, the distance sensor driving mechanism 5 drives the distance sensor 4 to extend forwards. After the distance measurement is completed, the distance sensor driving mechanism 5 drives the distance sensor 4 to retract.
Optionally, the utility model provides a utmost point ear welding set is still including connecting the mechanism 7 of bleeding on moving platform 1's drive end, and the end of bleeding of mechanism 7 of bleeding is towards pressure head 3. The air exhaust structure 7 can timely exhaust the spattered welding slag in the welding process.
The utility model also provides an electricity core module production facility, this electricity core module production facility include that electric core conveyor, utmost point ear processing apparatus, electric core pile up the device, electric core income shell device, utmost point ear welding set and electric core detection device, and utmost point ear welding set adopts the utility model discloses the utmost point ear welding set that embodiment provided is anyed to the first aspect, wherein: the battery cell conveying device is used for conveying a battery cell, so that the battery cell sequentially passes through the tab processing device, the battery cell stacking device, the battery cell casing entering device, the tab welding device and the battery cell detection device. The tab processing device is used for cutting and bending tabs of the battery cell. The battery cell stacking device is used for stacking a preset number of battery cells according to a preset mode. The battery cell casing device is used for packaging the stacked battery cells into a battery cell module. And the lug welding device is used for welding lugs to the battery cell module. The battery cell detection device is used for detecting performance parameters of the battery cell module.
Through electric core conveyor, utmost point ear processing apparatus, electric core pile up device, electric core income shell device, utmost point ear welding set and electric core detection device's cooperation, the utility model discloses an automatic production of electric core module has been realized to electric core module production facility, has promoted production efficiency greatly.
The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.
Claims (10)
1. The utility model provides a utmost point ear welding set for the utmost point ear welding after will bending to electric core module, a serial communication port, utmost point ear welding set includes moving platform and connects pressing subassembly, pressure head and laser welder on moving platform's the drive end, wherein:
the pressing component is arranged at least on one side of the pressure head, and the end part of the pressing component is configured to extend outwards out of the pressure head;
the moving platform drives the pressing component, the pressure head and the laser welding device move towards the pole lug, the pressing component presses the pole lug to the battery cell module, the pressure head compresses the pole lug pressed to the battery cell module, and the laser welding device welds the pole lug compressed to the battery cell module.
2. The tab welding apparatus as claimed in claim 1, wherein the pressing assembly comprises a push plate which is easily bent after being pressed and a push plate driving mechanism, wherein:
the push plate driving mechanism is connected to the driving end of the moving platform, the push plate is connected to the driving end of the push plate driving mechanism, the push plate is inclined towards the pressure head, and the push plate driving mechanism is configured to drive the push plate to move so that the end part of the push plate extends outwards out of the pressure head;
the moving platform drives when the pressing component moves towards the lug, the tip of the push plate is abutted with the battery cell module and then is bent along the surface of the battery cell module so as to press the lug to the battery cell module.
3. The tab welding apparatus as claimed in claim 2, wherein the push plate is made of an elastic material.
4. The tab welding apparatus as claimed in claim 1, wherein said biasing members are provided in two sets, said sets being located on opposite sides of said pressure head.
5. The tab welding device according to claim 1, wherein a slit is formed in the pressure head for allowing laser to pass through, and laser emitted from the laser welder irradiates the tab pressed against the cell module through the slit on the pressure head to weld the tab to the cell module.
6. The tab welding device according to claim 1, further comprising a distance sensor connected to the driving end of the movable platform, wherein the distance sensor is in signal connection with a control system of the movable platform, the distance sensor is configured to acquire distance information between the laser welder and the tab and send the acquired distance information to the control system of the movable platform, and the movable platform drives the pressing component, the pressure head and the laser welder to move towards the tab based on the distance information.
7. The tab welding device according to claim 6, further comprising a distance sensor drive mechanism, wherein the distance sensor drive mechanism is coupled to the drive end of the mobile platform, and wherein the distance sensor is coupled to the distance sensor drive mechanism.
8. The tab welding apparatus of claim 1 further comprising a suction mechanism coupled to the drive end of the mobile platform, the suction end of the suction mechanism facing the ram.
9. The tab welding apparatus as claimed in claim 1, wherein the pressure head is coupled to the driving end of the movable platform via a mounting plate, the mounting plate having a window formed therein corresponding to the slit in the pressure head, the laser welder being disposed on a side of the mounting plate remote from the pressure head;
and a blowing mechanism is arranged on the mounting plate and is configured to blow protective gas into the gap of the pressure head.
10. The utility model provides an electricity core module production facility, its characterized in that, electricity core module production facility includes electric core conveyor, utmost point ear processing apparatus, electric core and piles up device, electric core income shell device, utmost point ear welding set and electric core detection device, utmost point ear welding set be claim 1 to 9 any one utmost point ear welding set, wherein:
the battery cell conveying device is used for conveying a battery cell, so that the battery cell sequentially passes through the lug processing device, the battery cell stacking device, the battery cell shell entering device, the lug welding device and the battery cell detection device;
the tab processing device is used for cutting and bending tabs of the battery cell;
the battery cell stacking device is used for stacking a preset number of battery cells according to a preset mode;
the battery cell shell entering device is used for packaging the stacked battery cells into a battery cell module;
the tab welding device is used for welding a tab to the battery cell module;
the battery cell detection device is used for detecting performance parameters of the battery cell module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020406219.2U CN212094832U (en) | 2020-03-26 | 2020-03-26 | Utmost point ear welding set and electricity core module production facility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020406219.2U CN212094832U (en) | 2020-03-26 | 2020-03-26 | Utmost point ear welding set and electricity core module production facility |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589402A (en) * | 2022-03-15 | 2022-06-07 | 广州工业技术研究院 | Laser welding device for multilayer current collectors and outer lugs |
| CN114833446A (en) * | 2022-04-29 | 2022-08-02 | 三一技术装备有限公司 | Full laser welding manufacturing method for battery |
| CN117855620A (en) * | 2024-03-08 | 2024-04-09 | 宁德时代新能源科技股份有限公司 | Tab fixing device and tab fixing method |
-
2020
- 2020-03-26 CN CN202020406219.2U patent/CN212094832U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589402A (en) * | 2022-03-15 | 2022-06-07 | 广州工业技术研究院 | Laser welding device for multilayer current collectors and outer lugs |
| CN114833446A (en) * | 2022-04-29 | 2022-08-02 | 三一技术装备有限公司 | Full laser welding manufacturing method for battery |
| CN114833446B (en) * | 2022-04-29 | 2024-04-30 | 三一技术装备有限公司 | Full laser welding manufacturing method for battery |
| CN117855620A (en) * | 2024-03-08 | 2024-04-09 | 宁德时代新能源科技股份有限公司 | Tab fixing device and tab fixing method |
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