CN107552909B - Bus bar welding method - Google Patents
Bus bar welding method Download PDFInfo
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- CN107552909B CN107552909B CN201710937934.1A CN201710937934A CN107552909B CN 107552909 B CN107552909 B CN 107552909B CN 201710937934 A CN201710937934 A CN 201710937934A CN 107552909 B CN107552909 B CN 107552909B
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Abstract
The invention provides a bus bar welding method, which is used for welding a first battery string group and a second battery string group which are connected, wherein the first battery string group and the second battery string group respectively comprise more than two parallel battery strings, and the welding operation area comprises a first welding area, a second welding area and a third welding area; in the first welding area, a bus bar is welded to a head welding strip of the first battery string group, in the second welding area, a bus bar is welded to a tail welding strip of the second battery string group, and in the third welding area, the welding strip at the tail of the first battery string group and the head welding strip of the second battery string group are welded to the same bus bar. According to the invention, the first welding area, the second welding area and the third welding area are automatically operated together, so that independent operation is not required, welding of two battery strings is facilitated, manual intervention is not required in the whole process, the transmission line is integrated, the automation level is greatly improved, and the whole work efficiency of battery production can be greatly improved.
Description
Technical Field
The present invention relates generally to an automated battery production line, and more particularly, to a bus bar welding method.
Background
At present, the demand of batteries is increasing, and in the production process of batteries, a plurality of battery strings need to be connected, namely, every two adjacent battery strings are welded together through a bus bar. However, the existing process of welding and connecting the battery strings through the bus bars needs to be carried out independently and manually, so that the automation rate of battery production is seriously affected, and the efficiency of battery production is greatly reduced. In addition, the process of manual welding or manual carrying is adopted, so that the production efficiency is greatly reduced, the safety problem and the working strength problem are caused, and the overall cost of battery production is objectively increased along with the improvement of labor cost.
Therefore, how to improve the automation level of welding the battery string, thereby improving the production efficiency of the battery, reducing the labor cost and avoiding the occurrence of safety problems is a problem which needs to be solved urgently in the industry.
Disclosure of Invention
It is a primary object of the present invention to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a bus bar welding method which is highly automated.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bus bar welding method comprises the steps of welding a first battery string group and a second battery string group which are connected with each other, wherein the first battery string group and the second battery string group respectively comprise more than two parallel battery strings, and an operation area for welding comprises a first welding area, a second welding area and a third welding area; and in the third welding zone, welding the welding strip at the tail part of the first battery string group and the welding strip at the head part of the second battery string group on the same bus bar C.
According to an embodiment of the present invention, in the third lands, an insulating tape is provided on the bus bar C.
According to an embodiment of the present invention, in the third lands, the bus bars C are padded using a transport structure before soldering.
According to an embodiment of the invention, a carrier plate is provided between the transport structure and the bus bar C.
According to an embodiment of the present invention, a heat insulation bar is used in the third welding zone, and the heat insulation bar is arranged above the conveying structure and is padded below the bus bar C.
According to an embodiment of the present invention, the heat insulating strips are disposed on a carrying plate disposed on the conveying structure, or the heat insulating strips are suspended above the conveying structure in a clamping manner, or the heat insulating strips are directly laid on the conveying structure.
According to an embodiment of the present invention, the heat insulating strip is reusable and connected to a drawing structure, and the drawing structure is used for drawing the heat insulating strip on the bearing plate.
According to one embodiment of the invention, the bus bars a, B, C are gripped and laid by a bus bar pick-and-place device.
According to an embodiment of the present invention, the bus bar taking and feeding device and the welding device for welding are provided movably.
According to an embodiment of the present invention, the welding process of the third welding zone comprises any one of the following procedures;
wherein the first process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
lifting the tail part of the first battery string group;
placing a bus bar C to a lower portion of the first battery string;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the second process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
opening the head of the second battery string group;
placing a bus bar C to the lower part of the second battery string group;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the third process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
lifting the tail part of the first battery string group;
placing a bus bar C to a lower portion of the first battery string;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the fourth process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
opening the head of the second battery string group;
placing a bus bar C to the lower part of the second battery string group;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the fifth process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
lifting the tail part of the first battery string group;
placing a heat insulation strip on the lower part of the first battery string group;
placing a busbar C on the insulating bar;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the sixth process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
opening the head of the second battery string group;
placing a heat insulation strip on the lower part of the second battery string group;
placing a busbar C on the insulating bar;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the seventh process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
lifting the tail part of the first battery string group;
placing a heat insulation strip on the lower part of the first battery string group;
placing a busbar C on the insulating bar;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the eighth process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
opening the head of the second battery string group;
placing a heat insulation strip on the lower part of the second battery string group;
placing a busbar C on the insulating bar;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
According to the technical scheme, the bus bar welding method has the advantages and positive effects that:
according to the invention, the first welding area, the second welding area and the third welding area are automatically operated together, so that independent operation is not required, welding of two battery strings is facilitated, manual intervention is not required in the whole process, the transmission line is integrated, the automation level is greatly improved, and the whole work efficiency of battery production can be greatly improved.
Drawings
Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
fig. 1 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the first exemplary embodiment.
Fig. 2 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the second exemplary embodiment.
Fig. 3 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the third exemplary embodiment.
Fig. 4 is a schematic view of the operation of the bus bar welding method of the present invention shown in an exemplary embodiment.
Wherein the reference numerals are as follows:
1. 2, 3, bus bar welding equipment; 10. 20, 30, a bracket; 11. 21, 31, a welding device; 111. 211, 311, telescoping structures; 112. 212, 312, a welding head; 213. a traversing structure; 12. 22, 32, a carrying device; 1201. 2201, 3201, a first bearing surface; 1202. 2202, 3202, a second bearing surface; 1203. 2203, 3203, a third bearing surface; 121. 221, 321, a first bearing mechanism; 122. 222, 322, a second bearing mechanism; 123. 223, 323, a third bearing mechanism; 13. 23, 33, a bus bar taking and delivering device; 131. 231, 331, moving structure; 132. 232, 332, a taking and placing structure; 133. 233, 333, a grasping structure; 14. 24, 34, and a battery string group; 141. 241, 341, a first battery string head welding strip; 142. 242, 342, a second battery string tail welding strip; 143. 243, 343, a first battery string tail welding strip; 144. 244, 344, a second battery string head solder strip; 15. 25, 35, bus bars; 36. a heat insulating strip; 361. a pull structure; 18. a lifting mechanism.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the following description of various examples of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "top," "bottom," "front," "back," "side," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention.
First embodiment
Fig. 1 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the first exemplary embodiment.
As shown in fig. 1, the bus bar welding apparatus 1 of this embodiment includes a welding device 11, a carrier device 12, and a bus bar taking and feeding device 13. The welding device 11 is used for welding the bus bar 15 to the battery string 14, the carrying device 12 is used for carrying the battery string 14 and the bus bar 15, and the bus bar taking and sending device 13 is used for taking and sending the bus bar 15.
In this embodiment, the welding devices 11 are three sets, each of which is mounted on the support 10. Each set of welding devices 11 may comprise a telescopic structure 111 and a welding head 112, wherein the telescopic structure 111 may be movably or fixedly mounted on the frame 10, and the other end is mounted with the welding head 112 such that the welding head 112 can move up and down, and the welding head 112 is used for performing a welding action to weld the battery string 14 and the bus bar 15 together. In addition, in other embodiments, the welding device may also have a structure capable of moving back and forth, left and right to adjust the position to align the position to be welded.
In this embodiment, the carrier device 12 includes a first carrier mechanism 121, a second carrier mechanism 122, and a third carrier mechanism 123. In this embodiment, the first supporting mechanism 121 and the second supporting mechanism 122 are respectively located at two sides of the third supporting mechanism 123, and the top portions of the first supporting mechanism 121, the second supporting mechanism 122 and the third supporting mechanism 123 are respectively a first supporting surface 1201, a second supporting surface 1202 and a third supporting surface 1203. In this embodiment, each of the first supporting mechanism 121 and the second supporting mechanism 122 includes a lifting structure and a left-right fine tuning structure, so as to respectively lift and fine tune the first supporting surface 1201 and the second supporting surface 1202.
In this embodiment, the third supporting mechanism 123 includes a conveying structure (not shown), which may be a conveying belt, a roller, etc., and a supporting plate, such as a glass plate, may be disposed on the conveying structure to facilitate conveying and placing the battery string 14. In this embodiment, the two battery strings 14 are connected in series, i.e. connected end to end, and the first battery string tail welding strip 143 and the second battery string head welding strip 144 are welded by the bus bar 15, and optionally, an insulating strip is further provided. In addition, the first string head bonding tape 141 is welded to communicate with the circuit through the bus bar 15, and the second string tail bonding tape 142 is welded to communicate with the circuit through the bus bar 15. The welding of the first string head solder strip 141 corresponds to the bus bar 15 on the first carrier 121, and the welding of the second string tail solder strip 142 corresponds to the bus bar 15 on the second carrier 122. The bus bars 15 on the third supporting mechanism 123 correspond to the first cell string tail welding strip 143 and the second cell string head welding strip 144 at the same time, and are welded to the first cell string tail welding strip and the second cell string head welding strip at the same time.
In this embodiment, the bus bar taking and feeding device 13 is selectively used to automatically grip and transfer the bus bar 15 onto the third carrying surface 1203 of the third carrying mechanism 123. In this embodiment, the bus bar taking and feeding device 13 includes a moving structure 131, a taking and placing structure 132, and a grabbing structure 133. The moving structure 131 is used to move the pick-and-place structure 132 and the grabbing structure 133 to correspond to the positions of grabbing and releasing the bus bar 15. The pick-and-place structure 132 may move up and down to contact the grabbing structure 133 with the bus bar 15 or place the bus bar 15 on the third carrying surface 1203. The gripping structure 133 may be a suction cup or a robot to facilitate automatic gripping and releasing of the bus bar 15.
In this embodiment, a lift mechanism 18 may also optionally be used, the lift mechanism 18 being used to lift the portions of the battery string 14 proximate the first battery string tail solder strip 143 and the second battery string head solder strip 144 to facilitate placement of the bus bar 15 thereunder. The opening mechanism 18 may be provided in one set as shown in fig. 1, or may be provided in two sets at the same time, as the case may be. The function of the opening mechanism 18 can be replaced by the bus bar taking and sending device 13, and the structure is the same as the bus bar taking and sending device 13, which is not described herein again.
In this embodiment, a part of the bus bar 15 is placed on the first bearing surface 1201 and the second bearing surface 1202 respectively by manual or mechanical operation, and the part of the bus bar 15 is placed near the bearing device 12. The two battery strings 14 are then placed on the third carrier 123 and adjusted in place. When welding is performed, the bus bar 15 is positioned by adjusting the lifting structure and the left-right fine adjustment structure of the first bearing mechanism 121 and the second bearing mechanism 122. Meanwhile, the tail of the first battery string 14 is lifted by the lifting mechanism 18, the bus bar 15 is placed on the third bearing surface 1203 by the bus bar taking and feeding device 13 and is located below the tail of the first battery string 14, then the head of the second battery string 14 is lifted by the lifting mechanism 18, and the bus bar 15 is moved below the position where the first battery string tail welding strip 143 and the second battery string head welding strip 144 are centered by the bus bar taking and feeding device 13. After the position is determined properly, all the bus bars and the solder strips are soldered by the soldering device 11. In addition, the bus bar 15 may be automatically taken and placed on line, and conveyed to the place through line production, specifically determined according to actual needs.
Second embodiment
Fig. 2 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the second exemplary embodiment.
As shown in fig. 2, the bus bar welding apparatus 2 of this embodiment includes a welding device 21, a carrying device 22, and a bus bar taking and feeding device 23. The welding device 21, the carrying device 22 and the bus bar taking and feeding device 23 have substantially the same structure as the first embodiment, and the detailed structure is understood by referring to the description of the first embodiment and referring to fig. 2, and will not be described herein.
Compared with the first embodiment, in this embodiment, there is one welding device 21, a traverse structure 213 is added in the welding device 21, the telescopic structure 211 is installed on the support 20 through the traverse structure 213, and the traverse structure 213 can be sequentially moved to three different welding positions according to the welding requirement to weld the welding head 25 and the battery string group 24 respectively.
In addition, in this embodiment, compared with the first embodiment, the bus bar taking and feeding device 23 is used to open the corresponding position of the battery string 24 to place the bus bar 25 at the proper position. Specifically, the picking and placing structure 232 and the grabbing structure 233 are moved by the moving structure 231 to be above the solder strip 243 corresponding to the tail of the first battery string set, then the picking and placing structure 232 pushes the grabbing structure 233 to fall, the grabbing structure 233 grabs the tail of the first battery string set 24, and then the moving structure 231 moves towards the head of the first battery string set 24, so that the tail of the first battery string set 24 is turned over, and a gap is left. The bus bar 25 is placed in the gap by the bus bar taking and feeding device 23 in the above-described manner, the head of the second battery string set 24 is opened again by using the bus bar taking and feeding device 23, the bus bar 25 is moved to the center position by continuing to use the bus bar taking and feeding device 23, and finally the opened portion of the battery string set 24 is reset by using the bus bar taking and feeding device 23.
Third embodiment
Fig. 3 is a schematic view of the structure of an apparatus used in the bus bar welding method of the present invention shown in the third exemplary embodiment.
As shown in fig. 3, the bus bar welding apparatus 3 of this embodiment includes a welding device 31, a carrying device 32, and a bus bar taking and feeding device 33. The structures of the welding device 31, the carrying device 32 and the bus bar taking and feeding device 33 are basically the same as those of the first embodiment and the second embodiment, and the specific structures are described in the first embodiment and the second embodiment and understood with reference to fig. 3, and will not be described herein.
Compared with the first and second embodiments, in this embodiment, the heat insulating bars 36 are additionally provided on the third bearing surface 3203, and the bus bars 35 are provided on the heat insulating bars 36, so that the influence of the welding device 31 on the third bearing surface 3203 during welding is reduced. In addition, the insulating strips 36 may be reused for cost reduction and ease of operation. The heat insulating strip 36 is connected with a drawing structure 361, the heat insulating strip 36 is laid before the bus bar 35 is placed on the third bearing surface 3203, automatic laying is achieved, and when the heat insulating strip 36 needs to be taken back, the drawing structure 361 draws the heat insulating strip 36 back.
In addition, in contrast to the first and second embodiments, the third carrying surface 3203 in this embodiment is formed by the upper surface of the carrying plate, the lower part of which is placed on the transportation structure. The two battery strings 34 are conveniently placed in advance using the carrier plate, which may be a glass plate or a steel plate. Finally, when the carrier plate is not used, the heat insulating strip 36 may be transferred and placed on the third carrier mechanism 323 by using an automatic grabbing structure. The form of the automatic grabbing structure may refer to the bus bar taking and conveying device 33, and the third bearing mechanism 323 may be a fixed structure or a conveying structure, so as to facilitate the position adjustment of the third bearing surface 3203.
Finally, the bus bar welding method of the invention welds the first battery string group and the second battery string group which are connected, the first battery string group and the second battery string group both comprise more than two parallel battery strings, and the welding comprises a first welding area, a second welding area and a third welding area; in the first welding area, a bus bar A is welded to a head welding strip of the first battery string group, in the second welding area, a bus bar B is welded to a tail welding strip of the second battery string group, and in the third welding area, the welding strip at the tail of the first battery string group and the head welding strip of the second battery string group are welded to the same bus bar C.
Wherein optionally, in the third lands, an insulating tape is provided on the bus bar C.
Fig. 4 is a schematic view of the operation of the bus bar welding method of the present invention shown in an exemplary embodiment. As shown in fig. 4, in this embodiment, the welding process of the third welding zone is as follows:
1. placing the first battery string set and the second battery string set to a welding position;
2. lifting the tail part of the first battery string group;
3. placing a bus bar C to a lower portion of the first battery string;
4. opening the head of the second battery string group;
5. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
6. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
In addition, in other embodiments, different processes may be used, and the following description will be provided for different processes.
Wherein the second process comprises the steps of:
1. placing the first battery string set and the second battery string set to a welding position;
2. opening the head of the second battery string group;
3. placing a bus bar C to the lower part of the second battery string group;
4. lifting the tail part of the first battery string group;
5. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
6. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The third process comprises the following steps:
1. placing the first battery string set and the second battery string set to a welding position;
2. adjusting the positions of the first battery string group and the second battery string group;
3. lifting the tail part of the first battery string group;
4. placing a bus bar C to a lower portion of the first battery string;
5. opening the head of the second battery string group;
6. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
7. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The fourth process comprises the following steps:
1. placing the first battery string set and the second battery string set to a welding position;
2. adjusting the positions of the first battery string group and the second battery string group;
3. opening the head of the second battery string group;
4. placing a bus bar C to the lower part of the second battery string group;
5. lifting the tail part of the first battery string group;
6. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
7. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The fifth process comprises the following steps:
1. placing the first battery string set and the second battery string set to a welding position;
2. lifting the tail part of the first battery string group;
3. placing a heat insulation strip on the lower part of the first battery string group;
4. placing a busbar C on the insulating bar;
5. opening the head of the second battery string group;
6. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
7. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The sixth process includes the steps of:
1. placing the first battery string set and the second battery string set to a welding position;
2. opening the head of the second battery string group;
3. placing a heat insulation strip on the lower part of the second battery string group;
4. placing a busbar C on the insulating bar;
5. lifting the tail part of the first battery string group;
6. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
7. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The seventh process includes the steps of:
1. placing the first battery string set and the second battery string set to a welding position;
2. adjusting the positions of the first battery string group and the second battery string group;
3. lifting the tail part of the first battery string group;
4. placing a heat insulation strip on the lower part of the first battery string group;
5. placing a busbar C on the insulating bar;
6. opening the head of the second battery string group;
7. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
8. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
The eighth process includes the steps of:
1. placing the first battery string set and the second battery string set to a welding position;
2. adjusting the positions of the first battery string group and the second battery string group;
3. opening the head of the second battery string group;
4. placing a heat insulation strip on the lower part of the second battery string group;
5. placing a busbar C on the insulating bar;
6. lifting the tail part of the first battery string group;
7. adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
8. and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
In addition, it should be noted that the different structures of the above embodiments can be cross-combined with each other, and for reasons of space, they are not described herein one by one, but all cross-combination schemes are all included in the scope of the present invention.
It should be understood by those of ordinary skill in the art that the specific constructions and processes illustrated in the foregoing detailed description are exemplary only, and are not limiting. Furthermore, the various features shown above can be combined in various possible ways to form new solutions, or other modifications, by a person skilled in the art, all falling within the scope of the present invention.
Claims (9)
1. A bus bar welding method is characterized in that a first battery string group and a second battery string group which are connected are welded, the first battery string group and the second battery string group respectively comprise more than two parallel battery strings, and the welding operation area comprises a first welding area, a second welding area and a third welding area; in the first welding area, welding a bus bar A to a head welding strip of the first battery string group, in the second welding area, welding a bus bar B to a tail welding strip of the second battery string group, and in the third welding area, welding a welding strip at the tail of the first battery string group and a head welding strip of the second battery string group on the same bus bar C;
the welding process of the third welding area comprises any one of the following processes;
wherein the first process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
lifting the tail part of the first battery string group;
placing a bus bar C to a lower portion of the first battery string;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the second process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
opening the head of the second battery string group;
placing a bus bar C to the lower part of the second battery string group;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the third process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
lifting the tail part of the first battery string group;
placing a bus bar C to a lower portion of the first battery string;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the fourth process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
opening the head of the second battery string group;
placing a bus bar C to the lower part of the second battery string group;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the fifth process comprises the following steps:
placing the first battery string set and the second battery string set to a welding position;
lifting the tail part of the first battery string group;
placing a heat insulation strip on the lower part of the first battery string group;
placing a busbar C on the insulating bar;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the sixth process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
opening the head of the second battery string group;
placing a heat insulation strip on the lower part of the second battery string group;
placing a busbar C on the insulating bar;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the seventh process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
lifting the tail part of the first battery string group;
placing a heat insulation strip C to the lower part of the first battery string group;
placing a busbar C on the insulating bar;
opening the head of the second battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
welding the bus bar C with a welding strip at the tail part of the first battery string group and welding the bus bar C with a welding strip at the head part of the second battery string group;
the eighth process includes the steps of:
placing the first battery string set and the second battery string set to a welding position;
adjusting the positions of the first battery string group and the second battery string group;
opening the head of the second battery string group;
placing a heat insulation strip on the lower part of the second battery string group;
placing a busbar C on the insulating bar;
lifting the tail part of the first battery string group;
adjusting the bus bar C to be below the connecting position of the tail of the first battery string group and the head of the second battery string group;
and welding the bus bar C with the tail welding strip of the first battery string group and welding the bus bar C with the head welding strip of the second battery string group.
2. The bus bar welding method according to claim 1, wherein in the third land, an insulating tape is provided on the bus bar C.
3. The bus bar welding method according to claim 1, wherein in the third land, the bus bar C is padded using a conveying structure before welding.
4. The bus bar welding method according to claim 3, wherein a carrier plate is provided between the transport structure and the bus bar C.
5. The method of claim 4, wherein a thermal barrier strip is used in the third welding zone, the thermal barrier strip being disposed above the transport structure and underlaid below the bus bar C.
6. The method of claim 5, wherein the heat shield strips are arranged on a carrier plate arranged on the conveying structure, or wherein the heat shield strips are suspended in a clamped manner above the conveying structure, or wherein the heat shield strips are laid directly on the conveying structure.
7. The method of claim 5, wherein the heat shielding strip is reused and connected to a draw structure for drawing the heat shielding strip on the carrier plate.
8. The bus bar welding method according to claim 1, wherein the bus bar a, the bus bar B, and the bus bar C are grasped and laid by a bus bar take-and-feed device.
9. The bus bar welding method according to claim 8, wherein the bus bar take-and-feed device and the welding device for the welding are each movably provided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710937934.1A CN107552909B (en) | 2017-09-30 | 2017-09-30 | Bus bar welding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710937934.1A CN107552909B (en) | 2017-09-30 | 2017-09-30 | Bus bar welding method |
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| CN107552909B true CN107552909B (en) | 2020-07-17 |
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| CN110299433B (en) * | 2019-07-15 | 2024-04-05 | 河北羿珩科技有限责任公司 | Full-automatic stitch welding machine |
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| CN102790106A (en) * | 2012-08-20 | 2012-11-21 | 江苏永能光伏科技有限公司 | Arrangement structure of batteries in solar photovoltaic module |
| CN203707150U (en) * | 2013-12-19 | 2014-07-09 | 大连艾珂光电技术有限公司 | Solar cell module capable of saving cell material |
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| KR100908569B1 (en) * | 2005-11-02 | 2009-07-22 | 주식회사 엘지화학 | Manufacturing method of battery module |
| JP4661830B2 (en) * | 2007-06-15 | 2011-03-30 | トヨタ自動車株式会社 | Power module |
| CN101958351B (en) * | 2010-04-20 | 2013-05-15 | 常州天合光能有限公司 | Solar cell module with a plurality of junction boxes |
| CN102120285B (en) * | 2010-11-23 | 2012-08-29 | 常州尖能光伏科技有限公司 | Method for welding crystalline silicon solar energy assembly bus bar and interconnector |
| WO2012148100A2 (en) * | 2011-04-26 | 2012-11-01 | 주식회사 엘지화학 | Bus bar having a novel structure, and battery module including same |
| EP2607008B1 (en) * | 2011-12-19 | 2016-11-09 | Komax Holding AG | Soldering device for fixing an electrically conductive strip to a bus bar of a solar cell by means of inductive soldering |
| CN205414756U (en) * | 2016-03-17 | 2016-08-03 | 无锡奥特维科技股份有限公司 | Automatic stringer battery piece conveying mechanism |
| CN106881546A (en) * | 2017-04-15 | 2017-06-23 | 无锡奥特维科技股份有限公司 | A kind of cell piece series welding system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790106A (en) * | 2012-08-20 | 2012-11-21 | 江苏永能光伏科技有限公司 | Arrangement structure of batteries in solar photovoltaic module |
| CN203707150U (en) * | 2013-12-19 | 2014-07-09 | 大连艾珂光电技术有限公司 | Solar cell module capable of saving cell material |
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