CN219616884U - Series welding device and series welding machine - Google Patents
Series welding device and series welding machine Download PDFInfo
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- CN219616884U CN219616884U CN202223288142.1U CN202223288142U CN219616884U CN 219616884 U CN219616884 U CN 219616884U CN 202223288142 U CN202223288142 U CN 202223288142U CN 219616884 U CN219616884 U CN 219616884U
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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
Abstract
The utility model discloses a series welding device and a series welding machine for solar cells. The series welding device comprises: the welding device comprises a conveying assembly, a welding strip positioning assembly and a laser welding assembly; the conveying assembly comprises a conveying belt, wherein the conveying belt is used for bearing a plurality of battery pieces and can drive the battery pieces to move along a first direction; the welding strip positioning assembly is used for pressing a plurality of welding strips extending along the first direction on the surface of the battery piece; the laser welding assembly is arranged above the conveying belt, can emit a plurality of light beams, is arranged in one-to-one correspondence with the plurality of welding belts and is used for heating the welding belts in the process that the battery piece moves along the first direction so as to weld the welding belts with the battery piece. The embodiment of the utility model can effectively avoid the temperature non-uniformity caused by welding the infrared lamp tube in the prior art, so as to avoid the condition that the battery piece is bent in the cooling process of the battery string, thereby greatly improving the quality and the yield of the battery string.
Description
Technical Field
The utility model belongs to the field of photovoltaic cell production, and particularly relates to a series welding device and a series welding machine using the series welding device.
Background
In the photovoltaic production field, when the battery piece welds into battery string, traditional mode utilizes infrared lamp pipe heating welding, utilizes the lamp house of infrared lamp pipe group to heat to weld area and battery piece whole for tin on the welding area melts and is in the same place with the bars line adhesion on the battery piece.
However, when the back contact battery string is produced, the welding strip is only welded and adhered to the back surface of the battery piece, and the welding strip is welded to the battery piece due to thermal expansion, and when the battery string is cooled, the welding strip can be cooled and contracted, so that the battery piece belt connected with the welding strip is bent, and the production of the battery string is not facilitated.
Disclosure of Invention
It is therefore an object of the present utility model to provide a series welding device capable of preventing the bending problem of the battery cells and a series welding machine using the same.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a series welding device for solar cells, including: the welding device comprises a conveying assembly, a welding strip positioning assembly and a laser welding assembly; the conveying assembly comprises a conveying belt, wherein the conveying belt is used for bearing a plurality of battery pieces and can drive the battery pieces to move along a first direction; the welding strip positioning assembly is used for pressing a plurality of welding strips extending along a first direction on the surface of the battery piece; the laser welding assembly is arranged above the conveying belt, can emit a plurality of light beams, is arranged in one-to-one correspondence with the plurality of welding belts, and is used for heating the welding belts in the process that the battery piece moves along the first direction so as to weld the welding belts with the battery piece.
In an embodiment of the utility model, the laser welding assembly includes at least one laser emitter and a focusing mirror, wherein the focusing mirror is located between the laser emitter and the conveyor belt and is used for focusing the light beam emitted by the laser emitter to form a focusing point, and the focusing point is located above or below the battery piece.
In an embodiment of the utility model, the laser welding assembly further includes a beam splitter, located between the laser transmitter and the focusing mirror, for splitting the beam into at least two beams, and the focusing mirror is used for focusing each beam to form a focusing point.
In one embodiment of the present utility model, the laser transmitter includes at least two transmitting heads, each of which corresponds to one of the beam splitters.
In an embodiment of the present utility model, the light beam emitted by the laser emitter is a parallel light beam, and the wavelength of the parallel light beam is 1060nm to 1080nm.
In an embodiment of the utility model, the plurality of solder strip positioning assemblies are sequentially arranged on the conveyor belt along the first direction, and are used for synchronously compacting the plurality of solder strips on the battery piece.
In an embodiment of the utility model, the welding strip positioning assembly includes a pressing frame and a plurality of rows of elastic pressing pins arranged on the pressing frame in parallel along a second direction, wherein each row of elastic pressing pins is used for pressing one welding strip; a space for laser to pass through is arranged between two adjacent elastic pressing needles in each row of the elastic pressing needles; the second direction is perpendicular to the first direction.
In one embodiment of the present utility model, the plurality of laser transmitters are arranged in one row or two rows in a staggered manner; each laser emitter is used for emitting laser to at least one welding strip.
In one embodiment of the utility model, the delivery assembly further comprises a support member; the conveying belt is provided with a through hole, the supporting part is provided with a negative pressure adsorption hole, and the negative pressure adsorption hole adsorbs and positions the battery piece to a preset position of the conveying belt through the through hole so that the battery piece is conveyed along with the conveying belt.
In a second aspect, an embodiment of the present utility model provides a string welding machine, where the string welding machine employs the string welding device provided in the first aspect, and the string welding machine further includes a battery piece feeding device, a welding strip feeding device, and a tooling feeding device, where the battery piece feeding device is used for providing a battery piece to the conveying assembly, the welding strip feeding device is used for providing a welding strip to the conveying assembly, and the tooling feeding device is used for providing a welding strip positioning assembly to the conveying assembly; the battery piece feeding device and the welding strip feeding device stack the battery piece and the welding strip to the conveying assembly, and the tool feeding device is used for conveying the welding strip positioning assembly to the conveying assembly so as to compress and position the stacked battery piece and welding strip; the conveying assembly is used for conveying the stacked battery pieces, the welding strips and the welding strip positioning assembly to the laser welding station for conveying, and the laser welding assembly is used for welding the battery pieces and the welding strips into a battery string in the conveying process of the conveying assembly.
According to the technical scheme, the series welding device and the series welding machine have the advantages that:
according to the embodiment of the utility model, the plurality of battery pieces are driven to move along the first direction by the conveyor belt, the welding belt is pressed on the surfaces of the battery pieces by the welding belt positioning assembly, and then the laser welding assembly emits a plurality of light beams for heating the local part of each welding belt by laser so as to weld the welding belt with the plurality of battery pieces. By adopting the design, the situation that the whole welding strip is heated and expanded and the battery piece strip connected with the welding strip is bent due to shrinkage in the cooling process of the welding strip caused by welding of an infrared lamp tube in the prior art can be effectively avoided, so that the quality and the yield of the battery string are greatly improved; and the situation that the solder strip and the battery piece are subjected to cold welding or overselding can be avoided, so that the welding quality is greatly improved. In addition, the service life of the laser welding assembly can be prolonged, and the replacement and maintenance period of the infrared lamp tube in the prior art is reduced, so that the application and maintenance cost is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained by those skilled in the art without any inventive effort.
Fig. 1 is a schematic front view of a series welding device according to an embodiment of the present utility model;
fig. 2 is a schematic side view of a series welding device according to an embodiment of the present utility model;
fig. 3 is a schematic top view of a series welding device according to an embodiment of the present utility model.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many 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 the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
In the following description of different examples of the utility model, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration different exemplary structures, systems, and steps in which aspects of the utility model 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 utility model. Moreover, although the terms "top," "bottom," "front," "rear," "side," and the like may be used herein to describe various example features and elements of the utility model, these terms are used herein merely for convenience, e.g., as in the illustrated orientation of the examples in the figures. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the utility model.
The following describes the technical scheme of the present utility model and how the technical scheme of the present utility model solves the above technical problems in detail with specific embodiments.
An embodiment of the present utility model provides a series welding device for solar cells 101, where a schematic structural diagram of the series welding device is shown in fig. 1, and the series welding device includes: comprising the following steps: a conveying assembly 1, a welding strip positioning assembly 2 and a laser welding assembly 3; the conveying assembly 1 comprises a conveying belt 11, wherein the conveying belt 11 is used for bearing a plurality of battery pieces 101 and can drive the battery pieces 101 to move along a first direction; the welding strip positioning assembly 2 is used for pressing a plurality of welding strips extending along a first direction on the surface of the battery piece 101; the laser welding assembly 3 is disposed above the conveyor belt 11, and the laser welding assembly 3 can emit a plurality of light beams, and the plurality of light beams are disposed in one-to-one correspondence with the plurality of welding strips, so as to heat the welding strips in the process of moving the battery piece 101 along the first direction, so as to weld the welding strips with the battery piece 101.
As shown in fig. 1, the series welding device is used for welding the battery pieces 101 so that a plurality of battery pieces 101 can be connected in series to form a battery string, but the embodiment of the utility model is not limited to a specific type of battery string, for example, the series welding device of the embodiment of the utility model can be applied to a back contact (Interdigitated Back Contact, IBC) battery string, that is, a battery string with only one side provided with a grating, so the embodiment of the utility model is not limited thereto, and a person skilled in the art can adjust the arrangement according to the actual situation. The conveying assembly 1 comprises a conveying belt 11 made of flexible materials, the top surface of the conveying belt 11 extends along the horizontal direction and is used for bearing a plurality of battery pieces 101, the battery pieces 101 can be arranged in parallel along a first direction, the conveying belt 11 can drive a plurality of batteries to move along the first direction, and the first direction can be the left-right direction shown in the drawing. The strap positioning assembly 2 may be a unitary body that can be used to compress a plurality of straps on a plurality of battery cells 101. The solder strip may be an integral strip structure, and the solder strip extends along the first direction and is pressed against the surfaces of the plurality of battery pieces 101 under the cooperation of the solder strip positioning assembly 2. The laser welding assembly 3 may be suspended above the conveyor belt 11, and may be connected to the conveyor assembly 1 or independently disposed, which is not limited in this embodiment of the present utility model. The laser welding assembly 3 may emit a plurality of light beams toward the battery piece 101, the plurality of light beams being juxtaposed along an arrangement direction of the plurality of solder strips, and the plurality of light beams being disposed in one-to-one correspondence with the plurality of solder strips. In practical application, the conveyor belt 11 can drive the battery piece 101 to move along a first direction, for example, from right to left, and in the process of moving the battery piece 101 along the first direction, the plurality of light beams can heat the plurality of welding strips respectively, so that the welding strips are melted in a punctiform manner for welding with the battery piece 101.
According to the embodiment of the utility model, the plurality of battery pieces are driven to move along the first direction by the conveyor belt, the welding belt is pressed on the surfaces of the battery pieces by the welding belt positioning assembly, and then the laser welding assembly emits a plurality of light beams for heating the local part of each welding belt by laser so as to weld the welding belt with the plurality of battery pieces. By adopting the design, the situation that the whole welding strip is heated and expanded and the battery piece strip connected with the welding strip is bent due to shrinkage in the cooling process of the welding strip caused by welding of an infrared lamp tube in the prior art can be effectively avoided, so that the quality and the yield of the battery string are greatly improved; and the situation that the solder strip and the battery piece are subjected to cold welding or overselding can be avoided, so that the welding quality is greatly improved. In addition, the service life of the laser welding assembly can be prolonged, and the replacement and maintenance period of the infrared lamp tube in the prior art is reduced, so that the application and maintenance cost is greatly reduced.
In an embodiment of the present utility model, as shown in fig. 1 and 2, the laser welding assembly 3 includes at least one laser emitter 31 and a focusing lens (not shown) disposed between the laser emitter 31 and the conveyor belt 11, for focusing the light beam emitted from the laser emitter 31 to form a focusing point, and the focusing point is located above or below the battery piece 101.
As shown in fig. 1 and 2, the laser welding assembly 3 may include a plurality of laser emitters 31 and a plurality of focusing mirrors, where the plurality of laser emitters 31 are arranged, for example, along a width direction of the conveyor belt 11, for emitting a plurality of light beams. The focusing mirrors are disposed in one-to-one correspondence with the plurality of laser transmitters 31, and are used for focusing the light beams emitted by the laser transmitters to form a focusing point, and the focusing point may be located above or below the battery piece 101. Specifically, since the focusing point is a certain distance from the battery piece 101 and the welding strip in the vertical height, the welding area can be increased in practical application, and over welding of the battery strings caused by overhigh temperature can be avoided, so that the welding efficiency and the welding quality are further improved, and the yield of the battery strings is further improved greatly. It should be noted that, the embodiment of the present utility model is not limited to a specific distance between the focusing point and the surface of the battery piece 101 in the vertical direction, and therefore, the solder strip and the battery piece 101 may be soldered even if they do not pass through the exact center of the light beam. Therefore, the embodiment of the utility model is not limited to this, and the person skilled in the art can adjust the setting according to the actual situation.
It should be noted that, the embodiment of the present utility model is not limited to the specific implementation of the laser emitter 31 and the focusing mirror, for example, a single laser emitter 31 may also emit multiple light beams at the same time, and the focusing mirror may be integrally formed with multiple lenses having a focusing function. Therefore, the embodiment of the utility model is not limited to this, and the person skilled in the art can adjust the setting according to the actual situation.
In an embodiment of the present utility model, as shown in fig. 1 and 2, the laser welding assembly 3 further includes a beam splitter (not shown) located between the laser transmitter 31 and a focusing lens for splitting the light beam into at least two light beams, and the focusing lens is used for focusing each light beam to form a focusing point. Specifically, the beam splitter may be a rotating beam splitter, but the embodiment of the present utility model is not limited to the specific type of beam splitter, and a person skilled in the art may adjust the setting according to the actual situation. The beam splitter may be disposed between the optical paths of the laser emitter 31 and the focusing mirror, and the beam splitter may split a single light beam emitted from the laser emitter 31 into at least two light beams, and then each light beam is focused by the focusing mirror alone to form a focusing point. By adopting the design, the number of the laser transmitters 31 can be greatly reduced, for example, the number of the laser transmitters 31 can be only half of the number of the welding strips, so that the application and maintenance cost of the laser transmitters 31 can be greatly reduced, the embodiment of the utility model is simple in structure, and the cost of disassembly, assembly and maintenance is greatly reduced.
In one embodiment of the present utility model, as shown in fig. 1 and 2, the laser transmitter 31 includes at least two transmitting heads, each of which corresponds to one beam splitter. Specifically, the single laser transmitter 31 may include at least two transmitting heads to transmit two light beams, but the embodiment of the present utility model does not limit the number of transmitting heads included in the laser transmitter 31, and the number of transmitting heads may be adjusted according to actual requirements. Further, each emission head is correspondingly provided with a spectroscope, and the spectroscope is positioned on an optical path between the emission head and the focusing mirror, so that the spectroscope can divide the light beam of each emission head into at least two light beams. In an embodiment of the present utility model, the number of the laser transmitters 31 may be one fourth of the number of the solder strips, so as to further reduce the application and maintenance costs of the laser transmitters 31, and further reduce the complexity of the structure, thereby saving space and greatly improving the disassembly and maintenance efficiency.
In one embodiment of the present utility model, as shown in fig. 1 and 2, the laser emitter 31 emits a parallel beam with a wavelength of 1060nm to 1080nm. Specifically, the laser emitter 31 emits a parallel light beam, and the reflection of light can be greatly reduced by adopting the design, so that the welding efficiency and the welding quality are improved, and the yield of the battery string is further improved. Further, the wavelength of the parallel light beam may be set to 1060nm, 1062nm, 1063nm, 1064nm, 1066nm, 1068nm, 1069nm, 1071nm, 1073nm, 1074nm, 1076nm, 1078nm, 1079nm, or 1080nm.
In an embodiment of the present utility model, as shown in fig. 1 and 3, a plurality of solder strip positioning assemblies 2 are sequentially arranged on a conveyor belt 11 along a first direction, for synchronously pressing a plurality of solder strips on a battery piece 101. Specifically, the plurality of solder strip positioning assemblies 2 may be sequentially arranged along the extending direction of the conveyor belt 11 so as to be disposed in one-to-one correspondence with the plurality of battery pieces 101, that is, the plurality of solder strip positioning assemblies 2 are sequentially arranged on the conveyor belt 11 along the first direction. Each of the strap positioning assemblies 2 is capable of pressing a plurality of straps located on a single battery piece 101, thereby achieving the purpose of pressing the plurality of straps onto the plurality of battery pieces 101. By adopting the design, the embodiment of the utility model can freely adjust the number of the welding strip positioning assemblies 2 according to the number of the battery pieces 101 so as to realize the free adjustment of the number of the battery pieces 101 of each battery string, thereby greatly improving the applicability and the application range of the embodiment of the utility model and reducing the application and maintenance cost. It should be noted that, the embodiment of the present utility model is not limited to the specific implementation of the solder strip positioning assembly 2, for example, the solder strip positioning assembly 2 may also be combined in an odd number or an even number, so as to further improve the flexibility of the embodiment of the present utility model. Therefore, the embodiment of the utility model is not limited to this, and the person skilled in the art can adjust the setting according to the actual situation
In an embodiment of the present utility model, as shown in fig. 1 and 3, the welding strip positioning assembly 2 includes a pressing frame and a plurality of rows of elastic pressing pins (not shown in the drawings) arranged on the pressing frame in parallel along a second direction, each row of elastic pressing pins is used for pressing a welding strip, and a space for passing laser is provided between two adjacent elastic pressing pins in each row of elastic pressing pins; the second direction is perpendicular to the first direction. Specifically, the pressing frame may adopt a rectangular frame structure, and a plurality of ribs may be integrally formed in the pressing frame, the plurality of ribs being juxtaposed in the first direction and extending in the second direction for mounting a plurality of rows of elastic pressing pins. The second direction and the first direction are both horizontal directions and are perpendicular to each other, in other words, the first direction is the length direction of the conveyor belt 11, and the second direction is the width direction of the conveyor belt 11. The elastic pressing pins of the plurality of rows are arranged in parallel along the second direction, for example, each elastic pressing pin is arranged at the bottom of each rib so as to form one row of elastic pressing pins, and then the elastic pressing pins of the plurality of rows are arranged along the extending direction of the rib. In practical application, the pressing frame covers the periphery of the battery piece 101, the multiple rows of elastic pressing pins are respectively pressed on the multiple welding strips so as to be used for pressing the multiple welding strips, and any two adjacent ribs are provided with gaps for the light beam of the laser emitter 31 to pass through so as to heat and weld the welding strips.
In an embodiment of the present utility model, as shown in fig. 1 and 2, there are a plurality of laser transmitters 31, and the plurality of laser transmitters 31 are arranged in one row or two rows in a staggered manner, and each laser transmitter 31 is used for transmitting laser to at least one welding strip correspondingly. Specifically, the specific number of the laser emitters 31 is set corresponding to the number of the bonding pads, and the plurality of laser emitters 31 are arranged in a row along the second direction such that each laser emitter 31 is set in one-to-one correspondence with each bonding pad. Since the laser transmitters 31 may have two transmitting heads, each laser transmitter 31 may also correspond to two bonding pads, i.e., each laser transmitter 31 is configured to transmit laser light to at least one bonding pad. Further, the number of the laser transmitters 31 is set corresponding to the number of the bonding tapes, and the plurality of laser transmitters 31 are arranged in two rows along the second direction and are staggered in a crossing manner, so that each laser transmitter 31 and each bonding tape can be set correspondingly. By adopting the design, the structure of the embodiment of the utility model is flexible to set, the space occupation can be greatly saved, and the problem that the gap between two welding strips is smaller and cannot be applied is avoided, so that the applicability and the application range of the embodiment of the utility model are further improved.
It should be noted that the embodiment of the present utility model is not limited to the specific number of laser transmitters 31, and the excitation transmitters may be set according to the number of solder strips, or according to the number of transmitting heads and the specification of the beam splitter. Therefore, the embodiment of the utility model is not limited to this, and the person skilled in the art can adjust the setting according to the actual situation.
In an embodiment of the present utility model, as shown in fig. 1 and 3, the conveying assembly 1 further includes a supporting member 12; the conveyor belt 11 is provided with a through hole, and the supporting member 12 is provided with a negative pressure adsorption hole, and the negative pressure adsorption hole adsorbs and positions the battery piece 101 to a predetermined position of the conveyor belt 11 through the through hole, so that the battery piece 101 is conveyed along with the conveyor belt 11. Specifically, the conveyor belt 11 is of a flexible belt-like structure, and is wound around the support member 12. The top of the supporting member 12 is provided with a negative pressure suction hole, which can be connected to a negative pressure device for providing negative pressure to the negative pressure suction hole. Through holes penetrate through the conveying belt 11, and when the through holes of the conveying belt 11 are aligned with the negative pressure adsorption holes, the negative pressure adsorption holes can adsorb and position the battery pieces 101 on the preset positions of the conveying belt 11 through the through holes, so that the conveying belt 11 can drive the battery pieces 101 to move along the first direction. By adopting the design, the embodiment of the utility model can realize the positioning of the battery piece 101 by adopting a simpler structure, thereby greatly improving the usability of the embodiment of the utility model and greatly reducing the application and maintenance cost.
Based on the same conception, the embodiment of the utility model provides a series welding machine, which adopts the series welding device provided by the above embodiments, and further comprises a battery piece feeding device, a welding strip feeding device and a tooling feeding device, wherein the battery piece feeding device is used for providing a battery piece for a conveying assembly, the welding strip feeding device is used for providing a welding strip for the conveying assembly, and the tooling feeding device is used for providing a welding strip positioning assembly for the conveying assembly; the battery piece feeding device and the welding strip feeding device are used for stacking the battery piece and the welding strip on the conveying assembly, and the tool feeding device is used for conveying the welding strip positioning assembly to the conveying assembly so as to compress and position the stacked battery piece and the welding strip; the conveying assembly is used for conveying the stacked battery pieces, the welding strips and the welding strip positioning assembly to the laser welding station for conveying, and the laser welding assembly is used for welding the battery pieces and the welding strips into a battery string in the conveying process of the conveying assembly.
By applying the embodiment of the utility model, at least the following beneficial effects can be realized:
according to the embodiment of the utility model, the plurality of battery pieces are driven to move along the first direction by the conveyor belt, the welding belt is pressed on the surfaces of the battery pieces by the welding belt positioning assembly, and then the laser welding assembly emits a plurality of light beams for heating the local part of each welding belt by laser so as to weld the welding belt with the plurality of battery pieces. By adopting the design, only the area to be welded can be locally heated, so that the situation that the whole welding strip is heated, welded and welded to the battery piece due to the adoption of infrared lamp tube welding in the prior art, and the battery piece is bent due to the shrinkage of the welding strip in the cooling process of the battery string is effectively avoided, and the quality and the yield of the battery string are greatly improved; and the situation that the solder strip and the battery piece are subjected to cold welding or overselding can be avoided, so that the welding quality is greatly improved. Further, the laser welding component emits infrared laser. In addition, the service life of the laser welding assembly can be prolonged, and the replacement and maintenance period of the infrared lamp tube in the prior art is reduced, so that the application and maintenance cost is greatly reduced.
It will be appreciated by persons skilled in the art that the particular structures and processes shown in the above detailed description are illustrative only and not limiting. Moreover, those skilled in the art to which the utility model pertains will appreciate that various features described above may be combined in any number of possible ways to form new embodiments, or that other modifications are within the scope of the utility model.
Claims (10)
1. A solar cell string welding device, comprising: the welding device comprises a conveying assembly, a welding strip positioning assembly and a laser welding assembly;
the conveying assembly comprises a conveying belt, wherein the conveying belt is used for bearing a plurality of battery pieces and can drive the battery pieces to move along a first direction;
the welding strip positioning assembly is used for pressing a plurality of welding strips extending along a first direction on the surface of the battery piece;
the laser welding assembly is arranged above the conveying belt, can emit a plurality of light beams, is arranged in one-to-one correspondence with the plurality of welding belts, and is used for heating the welding belts in the process that the battery piece moves along the first direction so as to weld the welding belts with the battery piece.
2. The device of claim 1, wherein the laser welding assembly comprises at least one laser transmitter and a focusing lens, the focusing lens being positioned between the laser transmitter and the conveyor belt for focusing the beam of light emitted from the laser transmitter to form a focused point, the focused point being positioned above or below the battery plate.
3. The apparatus of claim 2, wherein the laser welding assembly further comprises a beam splitter positioned between the laser transmitter and the focusing mirror for splitting the beam into at least two beams, the focusing mirror for focusing each beam to form a focal point.
4. A series welding apparatus as defined in claim 3 wherein said laser transmitter includes at least two transmitter heads, one for each of said beam splitters.
5. The series welding device as defined in claim 2, wherein the beam emitted by the laser emitter is a parallel beam, and the wavelength of the parallel beam is 1060nm to 1080nm.
6. The string welding device of claim 1, wherein a plurality of the strap positioning assemblies are sequentially arranged on the conveyor belt along the first direction for synchronously pressing a plurality of the straps on the battery piece.
7. The string welding device as defined in claim 6, wherein the strap positioning assembly comprises a press frame and a plurality of rows of elastic press pins arranged in parallel on the press frame along a second direction, each row of elastic press pins being used for pressing a strap;
a space for laser to pass through is arranged between two adjacent elastic pressing needles in each row of the elastic pressing needles;
the second direction is perpendicular to the first direction.
8. The string welding apparatus of claim 2, wherein the plurality of laser transmitters are arranged in a row or two rows offset;
each laser emitter is used for emitting laser to at least one welding strip.
9. The string welding apparatus of claim 1, wherein the transport assembly further comprises a support member;
the conveying belt is provided with a through hole, the supporting part is provided with a negative pressure adsorption hole, and the negative pressure adsorption hole adsorbs and positions the battery piece to a preset position of the conveying belt through the through hole so that the battery piece is conveyed along with the conveying belt.
10. A series welding machine is characterized in that the series welding machine adopts the series welding device as claimed in any one of claims 1-9, and further comprises a battery piece feeding device, a welding strip feeding device and a tool feeding device,
the battery piece feeding device is used for providing battery pieces for the conveying assembly, the welding strip feeding device is used for providing welding strips for the conveying assembly, and the tool feeding device is used for providing welding strip positioning assemblies for the conveying assembly;
the battery piece feeding device and the welding strip feeding device stack the battery piece and the welding strip to the conveying assembly, and the tool feeding device is used for conveying the welding strip positioning assembly to the conveying assembly so as to compress and position the stacked battery piece and welding strip;
the conveying assembly is used for conveying the stacked battery pieces, the welding strips and the welding strip positioning assembly to the laser welding station for conveying, and the laser welding assembly is used for welding the battery pieces and the welding strips into a battery string in the conveying process of the conveying assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223288142.1U CN219616884U (en) | 2022-12-08 | 2022-12-08 | Series welding device and series welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223288142.1U CN219616884U (en) | 2022-12-08 | 2022-12-08 | Series welding device and series welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219616884U true CN219616884U (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223288142.1U Active CN219616884U (en) | 2022-12-08 | 2022-12-08 | Series welding device and series welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219616884U (en) |
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2022
- 2022-12-08 CN CN202223288142.1U patent/CN219616884U/en active Active
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