CN116372363A - Welding method of battery module busbar - Google Patents
Welding method of battery module busbar Download PDFInfo
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- CN116372363A CN116372363A CN202211630954.1A CN202211630954A CN116372363A CN 116372363 A CN116372363 A CN 116372363A CN 202211630954 A CN202211630954 A CN 202211630954A CN 116372363 A CN116372363 A CN 116372363A
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- 238000003466 welding Methods 0.000 title claims abstract description 189
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000035515 penetration Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- 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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- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a welding method of a battery module busbar, which comprises the following steps of S100, placing the busbar and a battery cell at a designated station, enabling an opening on the busbar to correspond to a battery cell pole on the battery cell up and down, and adjusting parameters of welding equipment; s200, photographing the bus bar and the battery cell to obtain the position information of the bus bar and the battery cell; s300, if the positions of the busbar and the battery cell meet preset information, the holes are concentric with the battery cell pole, a welding track is formulated, the welding track is identical to the holes in shape, and the distance between the welding track and the edges of the holes is 0-2mm; s400, welding the busbar and the battery cell electrode post along a welding track by welding equipment, wherein laser beams of the welding equipment cover the busbar and the battery cell electrode post at the same time; s500, observing the quality of the welding line through the opening. The invention provides a welding method of a battery module busbar, which aims to solve the problems that the welding quality cannot be detected after the busbar and a battery core are welded by adopting penetration welding, and the busbar with large thickness cannot be penetrated.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a welding method of a battery module busbar.
Background
The welding of the battery module is an important link, namely the welding of the busbar, which directly influences the service life of the battery module. In the prior art, a penetrating welding mode is adopted for welding the busbar, and the busbar is respectively welded with a plurality of battery cells through laser penetration, so that a battery module is formed. However, the laser welding often has weak welding or cold welding, i.e. the surface of the busbar has welding marks, but only small welding cores exist between the actual busbar and the battery cell terminal, or only physical contact is achieved but effective welding cannot be achieved. If only small welding cores exist in the bus bar and the battery core electrode post, the welding cores can be separated from the electrode post after the battery module is vibrated, so that the connection failure of the bus bar and the battery core is caused. If only physical contact exists between the busbar and the battery core pole, and current transmission cannot be realized, the whole battery module cannot normally operate. The defects cannot be intuitively judged after welding, and the welding quality of the busbar and the battery core electrode post after welding can be deduced only by verifying the quality of welding parameters through a welding tension experiment before welding. Therefore, the phenomenon that the battery module cannot be normally used often occurs in the existing laser welding mode, so that the welding qualification rate of the battery module is lower.
In addition, with the development of new energy automobiles, the charging speed of the battery module is required to be higher and higher, and the bus bar is required to carry more current when the battery module needs to be charged rapidly, so that the thickness of the bus bar needs to be increased. After the thickness of the bus bar is increased, the power of the laser welding equipment is correspondingly increased to realize penetration welding of the bus bar, however, the mode not only needs to consume larger energy, but also is difficult to penetrate the thicker bus bar, so that the welding quality of the bus bar and the battery core is further reduced.
Disclosure of Invention
The invention aims to provide a welding method of a battery module busbar, which aims to solve the problems that the welding quality cannot be detected after the busbar and a battery core are welded by adopting penetration welding, and the busbar with large thickness cannot be penetrated.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is a welding method of a battery module busbar, comprising:
s100, preparing before welding, namely placing a busbar and a battery cell at a designated station, wherein an opening on the busbar corresponds to a battery cell pole on the battery cell up and down, and adjusting parameters of welding equipment;
s200, photographing the busbar and the battery cell, acquiring position information of the busbar and the battery cell, and measuring whether the open hole is concentric with the battery cell pole by a photographing image;
s300, if the positions of the busbar and the battery cell meet preset information, the holes are concentric with the battery cell polar posts, a welding track is formulated, the shape of the welding track is identical to that of the holes, and the distance between the welding track and the edges of the holes is 0-2mm;
s400, the welding equipment welds the busbar and the battery cell pole along the welding track, and the laser beam of the welding equipment covers the busbar and the battery cell pole at the same time;
s500, observing the quality of the welding line through the opening.
In one possible implementation manner, the step S100 specifically includes:
s101, cleaning the surfaces of the busbar and the battery cell pole respectively;
s102, arranging a plurality of battery cells in sequence, and arranging the busbar above the battery cells so that the openings correspond to the battery cell pole columns vertically.
In one possible implementation manner, the step S102 further includes:
s103, placing the arranged multiple electric cores into a welding tool, and enabling the welding tool to compress the busbar and the electric core polar columns.
In one possible implementation manner, the S101 specifically includes:
s1001, dipping alcohol into non-woven fabrics to wipe the surfaces of the busbar and the electric core pole; or ultrasonic cleaning the busbar and the battery core electrode post, and drying; or cleaning the busbar and the battery core pole by adopting a laser cleaning mode.
In one possible implementation, the S100 further includes:
s105, adjusting parameters of the welding equipment to enable the projection width of the laser beam emitted by the welding equipment to be 1.8-3.2mm, namely, the projection of the laser beam covers the busbar and the battery core electrode post at the same time.
In one possible implementation manner, the S200 specifically includes:
s201, photographing the busbar and the battery cell;
s202, respectively measuring the heights of a plurality of electric cores, and determining the height difference among the electric cores;
s203, measuring the distance between the busbar and the battery cell electrode column in the up-down direction;
s204, after measurement, if the distance between the busbar and the battery core electrode post is not more than 0.5mm, starting welding by the welding equipment; and if the distance between the busbar and the battery core electrode post is larger than 0.5mm, the welding equipment does not weld.
In one possible implementation manner, the step S203 further includes:
s205, when the distance between the bus bar and the battery cell polar column is larger than 0.5mm, taking out the bus bar and the corresponding battery cells, adjusting the distance between the bus bar and the battery cell polar column, and then putting the adjusted bus bar and the battery cells into a welding station again.
In one possible implementation manner, the step S500 specifically includes:
s501, photographing welding seams of the busbar and the battery core pole through the opening.
In one possible implementation manner, the step S300 specifically includes:
s301, automatically calculating the welding track according to a visual algorithm by using a photographed image, and automatically calculating the coordinate position of the welding track.
In one possible implementation, in S100, the opening is a circular hole or a regular polygonal hole.
The welding method of the battery module busbar has the beneficial effects that: compared with the prior art, the welding method of the battery module busbar acquires the position information of the busbar and the battery cell by photographing the busbar and the battery cell before welding, and ensures that the battery cell pole column is concentric with the open hole. The welding equipment welds along the welding track that determines, and welding equipment's laser beam covers busbar and electric core post simultaneously, makes the contact of laser beam part after permeating the busbar with electric core post, and another part laser beam is direct to contact with electric core post, and laser makes the busbar and the electric core post melting of opening edge bond together, accomplishes the welding. Because the method of the invention only covers the battery core electrode post by the first part of the laser beam, the laser beam does not need to completely penetrate the bus bar and the battery core electrode post, so the power required by welding the bus bar with the specified thickness is smaller, and the welding energy consumption is reduced. The invention can determine the position information of the bus bar and the battery cell by photographing before welding, ensure that the bus bar and the battery cell are positioned at the designated positions, and reduce the probability of substandard welding caused by unclear positions. After the welding is finished, the quality of the welding seam can be observed through the opening, so that the qualification rate of the welded battery module is ensured, and the problem that the battery module cannot be detected after the cold joint or the missing welding is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a battery module according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural diagram of a bus bar according to an embodiment of the present invention.
In the figure: 1. a battery cell; 101. a cell pole; 2. a busbar; 201. opening holes; 3. and (5) welding tracks.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, a method for welding a bus bar of a battery module according to the present invention will be described. The welding method of the battery module busbar comprises the following steps:
s100, preparing before welding, namely placing a busbar 2 and a battery cell 1 at a designated station, enabling an opening 201 on the busbar 2 to vertically correspond to a battery cell pole 101 on the battery cell 1, and adjusting parameters of welding equipment;
s200, photographing the busbar 2 and the battery cell 1 to obtain the position information of the busbar 2 and the battery cell 1, and measuring whether the opening 201 and the battery cell pole 101 are concentric or not by a photographing image;
s300, if the positions of the busbar 2 and the battery cell 1 meet preset information, and the opening 201 and the battery cell pole 101 are concentric, a welding track 3 is formulated, the welding track 3 is identical to the opening 201 in shape, and the distance between the welding track 3 and the edge of the opening 201 is 1-2mm;
s400, welding the busbar 2 and the battery cell pole 101 along a welding track 3 by welding equipment, wherein laser beams of the welding equipment cover the busbar 2 and the battery cell pole 101 at the same time;
s500, observing the weld quality through the opening 201.
Compared with the prior art, the welding method of the battery module busbar provided by the invention has the advantages that the position information of the busbar 2 and the battery cell 1 is acquired by photographing the busbar 2 and the battery cell 1 before welding, so that the concentricity of the battery cell pole 101 and the open hole 201 is ensured, the phenomenon of welding breakage caused by the fact that the welding track 3 is close to the center of the battery cell pole 101 is avoided, and the phenomenon of damage to the battery cell 1 caused by the fact that the welding track 3 is too close to a round hole of the battery cell pole 101 is also avoided. The welding equipment welds along the determined welding track 3, and the laser beam of the welding equipment covers the busbar 2 and the cell pole 101 at the same time, so that one part of the laser beam is contacted with the cell pole 101 after penetrating through the busbar 2, the other part of the laser beam is directly contacted with the cell pole 101, and the laser beam melts and bonds the busbar 2 at the edge of the opening and the cell pole 101 together, thereby completing the welding. Because the method of the invention only covers the cell pole 101 by a part of the laser beam, the laser beam does not need to completely penetrate the bus bar 2 and the cell pole 101, so that the power required when the bus bar 2 with the specified thickness is welded is smaller, and the welding energy consumption is reduced. The invention can determine the position information of the busbar 2 and the battery cell 1 by photographing before welding, ensure that the busbar 2 and the battery cell 1 are positioned at the designated positions, and reduce the probability of substandard welding caused by inaccurate positions. After the welding is finished, the quality of the welding seam can be observed through the opening 201, the qualification rate of the welded battery module is ensured, and the problem that the battery module cannot be detected after the cold welding or the missing welding is avoided.
It should be noted that, ensuring that the opening 201 is concentric with the cell pole 101 can also ensure that the welding track 3 corresponds to the busbar 2 and the cell pole 101 simultaneously in the up-down direction, so as to avoid the problem that the welding track 3 cannot cover the cell pole 101, resulting in welding failure.
It should be noted that the solution of the present invention is applicable to the busbar 2 with an opening, so the corresponding opening 201 needs to be formed on the busbar 2 when the method is used.
It should be noted that, the photographing device and the welding device are respectively connected with the controller in a communication manner, when the photographing device detects that the position information of the busbar 2 and the battery cell 1 meets the preset information, a starting signal is generated, and the controller controls the welding device to generate the welding track 3 according to the starting signal and performs welding operation along the welding track 3. When the photographing device detects that the position information of the bus bar 2 and the battery cell 1 does not meet the preset information, a stop signal is generated, and the controller controls the welding device to not perform welding operation according to the stop signal.
It should be noted that, the distance measurement by photographing can be completed by using a camera distance meter, which is the prior art, and is not described herein, that is, the distance measurement is completed while photographing.
In some embodiments, referring to fig. 1 to 3, S100 specifically includes:
s101, cleaning the surfaces of the busbar 2 and the battery cell pole 101 respectively;
s102, arranging a plurality of battery cells 1 in sequence, and placing a busbar 2 above the battery cells 1 so that the openings 201 vertically correspond to the battery cell poles 101.
Cleaning the surfaces of the busbar 2 and the battery core pole 101, avoiding the influence of impurities such as greasy dirt on the surface of the busbar 2 or the battery core pole 101 on the welding quality and improving the welding effect. The busbar 2 is placed above the battery cells 1, and the laser beam of the welding device dissolves the busbar 2 and the battery cell pole 101 into a whole during welding, so that a plurality of battery cells 1 form a battery module through the busbar 2.
In some embodiments, referring to fig. 1 to 3, S102 further includes:
s103, placing the arranged multiple battery cells 1 into a welding tool, and enabling the welding tool to press the busbar 2 and the battery cell pole 101.
The electric core 1 is positioned through the welding fixture, so that a plurality of electric cores 1 keep a preset state, the busbar 2 and the electric core pole 101 are pressed through the welding fixture, gaps between the busbar 2 and the electric core pole 101 in the up-down direction are ensured, and the phenomenon that the welding has a fault joint or a welding leakage is avoided.
In some embodiments, referring to fig. 1 to 3, S101 specifically includes:
s1001, dipping alcohol into non-woven fabrics to wipe the surfaces of the busbar 2 and the cell pole 101; or ultrasonic cleaning the busbar 2 and the cell pole 101, and drying; or cleaning the busbar 2 and the cell pole 101 by adopting a laser cleaning mode.
The non-woven fabric is made of polyester fiber and polyester fiber (PET for short) and is made by a needling process, and can be made into various thicknesses, handfeel, hardness and the like. The non-woven fabric has the characteristics of moisture resistance, ventilation, flexibility, portability, flame retardance, no toxicity, no smell, low price, recycling and the like. The non-woven fabric is adopted to wipe the busbar 2 and the battery cell pole 101, so that impurities such as greasy dirt and the like can be effectively removed, and the busbar 2 and the battery cell pole 101 are not easy to damage. The ultrasonic cleaning or the laser cleaning is not required to be in contact with the surface of the workpiece, and the components with smaller volumes such as the busbar 2 and the cell pole 101 can be effectively cleaned, so that the busbar 2 or the cell pole 101 is prevented from being damaged in the contact cleaning process, and the integrity of the busbar 2 and the cell pole 101 is ensured.
In some embodiments, referring to fig. 1 to 3, S100 further includes:
s105, parameters of the welding equipment are adjusted, so that the projection width of the laser beam emitted by the welding equipment is 1.8-3.2mm, namely, the projection of the laser beam covers the busbar 2 and the battery cell pole 101 at the same time.
The projected width of the laser beam is 1.8-3.2mm and the distance of the welding track 3 from the edge of the opening 201 is 1-2mm, so that the width of the laser beam in the laser beam covering opening is 0.8-1.2mm, i.e. the laser beam covers the cell post 1010.8-1.2mm. The scheme in the embodiment can realize the projection of the laser beam and cover the busbar 2 and the battery core pole 101 at the same time, and avoid the laser beam from covering the central part of the battery core pole 101, thereby reducing the probability of explosion welding.
In some embodiments, referring to fig. 1 to 3, S200 specifically includes:
s201, photographing the busbar 2 and the battery cell 1;
s202, respectively measuring the heights of a plurality of battery cells 1, and determining the height difference among the battery cells 1;
s203, measuring the distance between the busbar 2 and the battery cell pole 101 in the up-down direction;
s204, after measurement, if the distance between the busbar 2 and the battery cell pole 101 is not more than 0.5mm, starting welding by the welding equipment; if the distance between the busbar 2 and the cell post 101 is greater than 0.5mm, the welding device does not weld.
And measuring the height difference among all the battery cells 1, and compensating the height of the vibrating mirror during welding so as to ensure that all the battery cells 1 maintain the same defocusing amount during welding and ensure the welding quality. And the distance between the measuring busbar 2 and the electric core pole 101 in the up-down direction is not more than 0.5mm, so that the busbar 2 and the electric core pole 101 can be ensured to be dissolved into a whole, and the quality of a welding seam is ensured to reach the standard.
In some embodiments, referring to fig. 1 to 3, S203 further includes:
and S205, when the distance between the bus bar 2 and the battery cell pole 101 is larger than 0.5mm, taking out the bus bar 2 and the corresponding battery cells 1, adjusting the distance between the bus bar 2 and the battery cell pole 101, and then putting the adjusted bus bar 2 and the battery cells 1 into the welding station again.
When the distance between the busbar 2 and the battery core pole 101 is larger than 0.5mm, welding equipment performs welding, the distance between the busbar 2 and the battery core pole 101 is adjusted after the welding equipment is taken out, the welding equipment is put into a welding station again, and after photographing and ranging, welding is performed if the gap requirement is met. The scheme in the embodiment detects before welding, reduces the probability of false welding or missing welding, and improves the welding quality.
In some embodiments, referring to fig. 1 to 3, S500 specifically includes:
s501, photographing welding seams of the busbar 2 and the battery cell pole 101 through the opening 201.
Compared with naked eye observation, the scheme in the embodiment can display the weld quality after photographing and amplifying, so that the detection precision is improved, and the detection efficiency is improved through mechanized photographing detection.
In some embodiments, referring to fig. 1 to 3, S300 specifically includes:
s301, automatically calculating a welding track 3 according to a visual algorithm by using a photographed image, and automatically calculating the coordinate position of the welding track 3.
According to the coordinates of the welding track 3, the welding equipment automatically performs welding, so that compared with manual welding, the welding efficiency is improved, and the laser beam moves along the welding track 3, so that the welding precision is improved.
In some embodiments, referring to fig. 1 to 3, in S100, the opening 201 is a circular hole or a regular polygonal hole.
The center of the circular or polygonal hole is easily determined to facilitate measuring whether the opening 201 is concentric with the cell post 101 to facilitate braking the welding track 3.
Optionally, the opening 201 is a rectangular hole, the number of sides of the rectangular hole is small, repeated reversing of the welding device is avoided, and the linear track is easier to weld.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The welding method of the battery module busbar is characterized by comprising the following steps of:
s100, preparing before welding, namely placing a busbar and a battery cell at a designated station, wherein an opening on the busbar corresponds to a battery cell pole on the battery cell up and down, and adjusting parameters of welding equipment;
s200, photographing the busbar and the battery cell, acquiring position information of the busbar and the battery cell, and measuring whether the open hole is concentric with the battery cell pole by a photographing image;
s300, if the positions of the busbar and the battery cell meet preset information, the holes are concentric with the battery cell polar posts, a welding track is formulated, the shape of the welding track is identical to that of the holes, and the distance between the welding track and the edges of the holes is 0-2mm;
s400, the welding equipment welds the busbar and the battery cell pole along the welding track, and the laser beam of the welding equipment covers the busbar and the battery cell pole at the same time;
s500, observing the quality of the welding line through the opening.
2. The welding method of the battery module busbar of claim 1, wherein S100 specifically includes:
s101, cleaning the surfaces of the busbar and the battery cell pole respectively;
s102, arranging a plurality of battery cells in sequence, and arranging the busbar above the battery cells so that the openings correspond to the battery cell pole columns vertically.
3. The welding method of a battery module busbar of claim 2, wherein S102 further comprises:
s103, placing the arranged multiple electric cores into a welding tool, and enabling the welding tool to compress the busbar and the electric core polar columns.
4. The welding method of the battery module busbar according to claim 2, wherein S101 specifically includes:
s1001, dipping alcohol into non-woven fabrics to wipe the surfaces of the busbar and the electric core pole; or ultrasonic cleaning the busbar and the battery core electrode post, and drying; or cleaning the busbar and the battery core pole by adopting a laser cleaning mode.
5. The welding method of a battery module busbar of claim 1, wherein S100 further comprises:
s105, adjusting parameters of the welding equipment to enable the projection width of the laser beam emitted by the welding equipment to be 1.8-3.2mm, namely, the projection of the laser beam covers the busbar and the battery core electrode post at the same time.
6. The welding method of the battery module busbar of claim 1, wherein S200 specifically includes:
s201, photographing the busbar and the battery cell;
s202, respectively measuring the heights of a plurality of electric cores, and determining the height difference among the electric cores;
s203, measuring the distance between the busbar and the battery cell electrode column in the up-down direction;
s204, after measurement, if the distance between the busbar and the battery core electrode post is not more than 0.5mm, starting welding by the welding equipment; and if the distance between the busbar and the battery core electrode post is larger than 0.5mm, the welding equipment does not weld.
7. The welding method of battery module busbar of claim 6, wherein S203 further comprises:
s205, when the distance between the bus bar and the battery cell polar column is larger than 0.5mm, taking out the bus bar and the corresponding battery cells, adjusting the distance between the bus bar and the battery cell polar column, and then putting the adjusted bus bar and the battery cells into a welding station again.
8. The welding method of the battery module busbar of claim 1, wherein S500 specifically includes:
s501, photographing welding seams of the busbar and the battery core pole through the opening.
9. The welding method of the battery module busbar of claim 1, wherein S300 specifically includes:
s301, automatically calculating the welding track according to a visual algorithm by using a photographed image, and automatically calculating the coordinate position of the welding track.
10. The welding method of the battery module buss bar according to claim 1, wherein the open holes are circular holes or regular polygonal holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211630954.1A CN116372363A (en) | 2022-12-19 | 2022-12-19 | Welding method of battery module busbar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211630954.1A CN116372363A (en) | 2022-12-19 | 2022-12-19 | Welding method of battery module busbar |
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| CN116372363A true CN116372363A (en) | 2023-07-04 |
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| CN202211630954.1A Pending CN116372363A (en) | 2022-12-19 | 2022-12-19 | Welding method of battery module busbar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117020418A (en) * | 2023-10-09 | 2023-11-10 | 珠海富士智能股份有限公司 | Method and apparatus for manufacturing CCS module of battery pack, and storage medium |
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2022
- 2022-12-19 CN CN202211630954.1A patent/CN116372363A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117020418A (en) * | 2023-10-09 | 2023-11-10 | 珠海富士智能股份有限公司 | Method and apparatus for manufacturing CCS module of battery pack, and storage medium |
| CN117020418B (en) * | 2023-10-09 | 2024-01-16 | 珠海富士智能股份有限公司 | Method and apparatus for manufacturing CCS module of battery pack, and storage medium |
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