Battery string production equipment and battery string production method

Abstract

The present invention provides a battery string production device and a battery string production method, the battery string production device comprises a handling device, a stacking device and a welding device; the handling device is used to carry battery cells, welding strips and pressing tools; the stacking device comprises a first conveying device and at least two bearing mechanisms, the first conveying device comprises at least two first conveyor belts, each bearing mechanism comprises a base, a bearing frame and a lifting mechanism; the bearing frame comprises a bearing body and a supporting part; when the lifting mechanism drives the bearing frame to rise, the handling device places the battery cells, welding strips and pressing tools on the supporting part; when the lifting mechanism drives at least two bearing mechanisms to be arranged in a stepped manner, at least two bearing frames are close to each other; when the lifting mechanism drives the bearing frame to descend, the battery cells, welding strips and pressing tools on the bearing frame fall on the first conveyor belt to form a battery string; the battery string production device also comprises a welding device for welding battery strings, and the technical solution provided by the present invention can effectively improve the stacking efficiency of battery strings.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assembly production, and in particular to a battery string production device and a battery string production method. Background Art

[0002] In the production process of photovoltaic cells, there is a process of using cell string welding equipment to weld cell cells and welding ribbons to form cell strings.

[0003] Before welding to form a battery string, the battery cells and welding ribbons are first stacked. The traditional way of stacking the battery cells and welding ribbons is to respectively transport the welding ribbons to a conveying device through a welding ribbon transporting device and transport the battery cells through a battery cell transporting device, so that the welding ribbons and battery cells are stacked in sequence on the conveying device.

[0004] However, the current stacking method of battery cells and welding ribbons is inefficient, which affects the production cycle of battery strings. Summary of the invention

[0005] The object of the present invention is to provide a battery string production device to solve the problem of low battery string production efficiency in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides a battery string production device, the battery string production device includes a handling device, a stacking device and a welding device;

[0007] The handling device is configured to carry battery cells, welding strips and pressing fixtures;

[0008] The stacking device comprises a first conveying device and at least two bearing mechanisms, wherein the first conveying device comprises at least two first conveying belts arranged in parallel, and the at least two bearing mechanisms are arranged below the first conveying belt at intervals from front to back along the extension direction of the first conveying belt, and each of the bearing mechanisms comprises a base, a bearing frame, and a lifting mechanism for driving the bearing frame to rise and fall relative to the base; wherein the bearing frame comprises a bearing body located below the first conveying belt and at least two supporting parts arranged on the bearing body for supporting the battery sheets; the bearing mechanisms are arranged to be able to translate so that adjacent bearing mechanisms can approach or move away from each other;

[0009] Wherein, when the lifting mechanism drives the carrier to rise, the support portion extends upward from the gap between adjacent first conveyor belts and / or the outer side of the first conveyor belt, and the handling device places the battery cell, the welding strip and the pressing tool on the support portion of each of the bearing mechanisms; Wherein, on each of the bearing mechanisms, the battery cell is placed on the support portion, the front section of the welding strip is overlapped on the battery cell, the rear section of the welding strip extends backward from the battery cell, and the pressing tool is pressed on the front section of the welding strip;

[0010] When the lifting mechanism drives the carriers of the at least two carrier mechanisms to be arranged in a ladder-like manner from low to high in a front-to-back direction, the at least two carriers are close to each other so that the battery cells on the higher carrier of the adjacent carriers are stacked on the rear section of the welding strip on the lower carrier;

[0011] When the lifting mechanism drives the carrier to descend, the battery cells, welding strips and pressing tooling stacked on the carrier fall onto the first conveyor belt, and the battery cells and welding strips are stacked on the first conveyor belt to form a battery string;

[0012] The battery string production equipment further includes a welding device for welding the stacked battery strings.

[0013] Preferably, the stacking device further comprises a support plate located below the first conveyor belt and used for supporting the rear section of the welding strip;

[0014] The support plate is provided with a strip groove for the support portion of the carrier to move back and forth;

[0015] The support plate is also provided with a guide groove for guiding the rear section of the welding tape on the carrier. After the stacked battery cells, welding tape and pressing tooling on the carrier fall onto the first conveyor belt, the rear section of the welding tape falls into the guide groove.

[0016] Preferably, the stacking device further comprises a second conveying device, which is located inside the first conveyor belt and downstream of the carrying mechanism;

[0017] The second conveying device includes a second conveyor belt. After the battery cells, welding strips and pressing tools stacked by the supporting mechanism fall onto the first conveyor belt, they are transported by the first conveyor belt to above the second conveyor belt of the second conveying device. The rear section of the welding strip is supported by the second conveyor belt and conveyed synchronously with the first conveyor belt.

[0018] Preferably, the stacking device further comprises a second conveying device, and the second conveying device is located at the rear end of the first conveying device;

[0019] After the battery cells, welding strips and pressing tools stacked on the carrying mechanism fall onto the first conveyor belt, they are conveyed by the first conveyor belt and then conveyed from the first conveyor belt to the second conveyor device.

[0020] Preferably, the battery string production equipment further comprises a battery cell conveying device, wherein the battery cell conveying device comprises a third conveying device and a fourth conveying device located downstream of the third conveying device;

[0021] Wherein, one of the third conveying device and the fourth conveying device is configured to include two parallel conveying belts, and the conveying belt of the other is configured to extend into between the two parallel conveying belts, and the upper surfaces of the conveying belts of the third conveying device and the fourth conveying device are flush;

[0022] The transport device comprises a battery cell transport device for transporting battery cells, and the battery cell transport device transports the battery cells from the fourth conveying device and places them on the carrying mechanism.

[0023] Preferably, both sides of the frame of the fourth conveying device located downstream are respectively provided with a tidying mechanism for tidying the conveyed battery sheets;

[0024] The aligning mechanism comprises an aligning frame movably mounted on the frame and rollers arranged on the aligning frame. When the aligning frames on both sides of the frame move toward each other, the aligning wheels align the battery cells from both sides of the battery cells.

[0025] Preferably, the battery string production equipment further comprises a battery cell detection device and a waste box, wherein the battery cell detection device detects the regularized battery cells on the fourth conveying device, and the detected defective battery cells are placed on the waste box.

[0026] Preferably, the handling device comprises a welding strip tool handling device, and the welding strip tool handling device is configured to carry the pressing tool and the welding strip, and place the carried pressing tool and welding strip on the battery cell of the carrying mechanism.

[0027] Preferably, the welding strip tooling handling device comprises a mounting frame and at least two mobile modules arranged in a straight line on the mounting frame, each of the mobile modules comprises a tooling picking mechanism and a welding strip clamping mechanism for clamping the welding strip, and after the tooling picking mechanism of each mobile module picks up and presses the tooling, the welding strip clamping mechanism clamps the welding strip;

[0028] The at least two mobile modules are configured to be able to move toward and away from each other. After the mobile modules move to adjust the spacing between adjacent mobile modules to be consistent with the spacing between adjacent supporting mechanisms, each mobile module releases the clamping tooling and welding ribbon it is carrying onto the battery cell of the corresponding supporting mechanism.

[0029] Preferably, the battery string production equipment further comprises a plurality of welding ribbon rolls for winding welding ribbons, a welding ribbon pulling device for pulling the welding ribbons from the welding ribbon rolls, and a tool conveying device for conveying a pressing tool;

[0030] When the welding tape tool handling device moves to the tool conveying device, the tool picking mechanism of each mobile module picks up a pressing tool from the tool conveying device, and when the welding tape tool handling device moves above the welding tape pulled by the welding tape pulling device, the welding tape clamping mechanism of each mobile module is configured to clamp the pulled welding tape at a predetermined position, and after the welding tape is cut, each mobile module clamps a group of welding tapes;

[0031] The battery string production equipment also includes one or at least two solder strip pressing devices arranged at intervals along the length direction of the solder strip. Before the solder strip clamping mechanism clamps the solder strip, the solder strip pressing device is configured to press the solder strip pulled by the solder strip pulling device, so that the middle part of the solder strip clamped by each of the mobile modules is pressed into a flat or bent structure.

[0032] According to another aspect of the present invention, there is also provided a battery string production method, wherein the battery string production method adopts the battery string production device as described above, wherein the battery string production method comprises:

[0033] Controlling at least two of the support frames of the support mechanisms to move upward so that the support portions of the support frames extend upward out of the first conveyor belt;

[0034] Control the handling device to place the battery cell, the welding tape and the pressing tool on the support portion of each carrier extending from the first conveyor belt, wherein on each of the carriers, the battery cell is placed on the support portion, the front section of the welding tape is overlapped on the battery cell, the rear section of the welding tape extends backward from the battery cell, and the pressing tool is pressed on the front section of the welding tape;

[0035] Controlling at least two of the carriers to be arranged in a ladder-like manner from low to high in a direction from front to back, and controlling the at least two carriers to be close to each other, so that the battery cells on the higher carrier among the adjacent carriers are stacked above the rear section of the welding strip on the lower carrier;

[0036] Controlling the carriers of at least two of the carrier mechanisms to descend, so that the battery cells, welding strips and pressing tools carried by the carriers fall onto the first conveyor belt, and the battery cells and welding strips are stacked on the first conveyor belt to form a battery string;

[0037] The battery string is welded using a welding device.

[0038] Preferably, a second conveying device located downstream of the carrying mechanism is provided inside the first conveyor belt;

[0039] The method of welding the battery string using a welding device comprises:

[0040] The first conveyor belt conveys the carried battery string;

[0041] When the first conveying device conveys the battery string to the upper part of the second conveying device, the rear section of the welding ribbon group of the battery string is supported by the second conveying belt of the second conveying device, and the first conveying device and the second conveying device synchronously convey the battery string to the welding station;

[0042] The welding device located at the welding station is controlled to weld the battery string.

[0043] Preferably, a second conveying device is provided at the tail end of the first conveying device;

[0044] The method of welding the battery string using a welding device comprises:

[0045] The first conveyor belt conveys the battery string carried thereon, and the battery string is transferred to the second conveyor device at the tail end of the first conveyor device;

[0046] The second conveying device conveys the battery string to a welding station;

[0047] The welding device located at the welding station is controlled to weld the battery string.

[0048] Preferably, the handling device includes a battery cell handling device and a welding ribbon tooling handling device;

[0049] The controlling the transport device to place the battery sheet, the welding ribbon and the pressing tool on the supporting portion of each carrier extending out of the first conveyor belt comprises:

[0050] Controlling the battery cell transporting device to transport the battery cells from the battery cell conveying device and place the battery cells on the supporting portion of the carrier;

[0051] The welding strip tool handling device comprises at least two moving modules, and each of the at least two moving modules is controlled to pick up a pressing tool respectively, and each of the moving modules respectively clamps a group of welding strips;

[0052] Each of the mobile modules of the solder strip tooling transport device is controlled to move to a position corresponding to each of the carrying mechanisms, and the solder strip and the pressing tooling transported by each of the mobile modules are placed on the battery cell of the corresponding carrying mechanism.

[0053] In the technical solution provided by the present invention, at least two carrying mechanisms are used to respectively carry the battery cells, welding strips and pressing tooling, and the at least two carrying mechanisms are made to approach each other and then fall onto the first conveyor belt 121 to form a battery string stacked by battery cells and welding strips on the first conveyor belt. This method of stacking battery cells and welding strips can effectively improve the stacking efficiency of the battery string, thereby improving the production efficiency of the battery string. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic diagram of the structure of a battery string production device according to one embodiment of the present invention;

[0055] Figure 2 It is a schematic diagram of the structure of a stacking device in a battery string production device;

[0056] Figure 3 for Figure 2 Side view of

[0057] Figure 4 It is a schematic diagram of the cooperation between multiple bearing mechanisms and a support plate;

[0058] Figure 5 for Figure 4 A top view of

[0059] Figure 6 It is a structural schematic diagram of a battery cell conveying device;

[0060] Figure 7 A schematic diagram of a battery cell conveying device conveying battery cells.

[0061] Description of Reference Numerals

[0062] 1-stacking device; 11-carrying mechanism; 111-carrying body; 112-supporting part; 113-base; 114-lifting mechanism; 12-first conveying device; 121-first conveyor belt; 13-support plate; 131-strip groove; 132-guide groove; 14-second conveying device; 2-cell conveying device; 21-third conveying device; 22-fourth conveying device; 23-regularizing mechanism; 3-cell supply box; 4-waste box; 5-tool conveying device; 6-welding ribbon roll; 7-welding ribbon pressing device; 10-cell; 20-pressing tool. DETAILED DESCRIPTION

[0063] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0064] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known structures, methods, devices, implementations, materials or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0065] For ease of description, spatially relative terms such as "upper", "lower", "left", "right", etc. may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the elements described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can also be positioned in other ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used here can be interpreted accordingly.

[0066] The present invention provides a battery string production device, the battery string production device comprising a handling device, a stacking device 1 and a welding device;

[0067] The handling device is configured to carry battery cells, welding strips and pressing fixtures;

[0068] The stacking device 1 includes a first conveying device 12 and at least two bearing mechanisms 11, wherein the first conveying device 12 includes at least two first conveying belts 121 arranged in parallel, and the at least two bearing mechanisms 11 are arranged below the first conveying belt 121 at intervals from front to back along the extension direction of the first conveying belt 121, and each of the bearing mechanisms 11 includes a base 113, a bearing frame, and a lifting mechanism 114 for driving the bearing frame to rise and fall relative to the base 113; wherein the bearing frame includes a bearing body 111 located below the first conveying belt 121 and at least two supporting parts 112 arranged on the bearing body 111 for supporting battery cells; the bearing mechanism 11 is arranged to be able to translate so that adjacent bearing mechanisms 11 can approach or move away from each other;

[0069] When the lifting mechanism 114 drives the carrier to rise, the support portion 112 extends upward from the gap between adjacent first conveyor belts 121 and / or the outer side of the first conveyor belt, and the handling device places the battery cell, the welding strip and the pressing tool on the support portion 112 of each of the carrying mechanisms 11; on each of the carrying mechanisms 11, the battery cell is placed on the support portion 112, the front section of the welding strip is overlapped on the battery cell, the rear section of the welding strip extends backward from the battery cell, and the pressing tool is pressed on the front section of the welding strip;

[0070] When the lifting mechanism 114 drives the carriers of the at least two carrier mechanisms 11 to be arranged in a ladder-like manner from low to high in the direction from front to back, the at least two carriers are close to each other so that the battery cells on the higher carrier of the adjacent carriers are stacked on the rear section of the welding strip on the lower carrier;

[0071] When the lifting mechanism 114 drives the carrier to descend, the stacked cells, welding strips and pressing tooling on the carrier fall onto the first conveyor belt 121, and the cells and welding strips are stacked on the first conveyor belt 121 to form a cell string, that is, on the first conveyor belt 121, the front section of the i-th group of welding strips is stacked on the i-th cell, and the i+1-th cell is stacked on the rear section of the i-th group of welding strips;

[0072] The battery string production equipment further includes a welding device for welding the stacked battery strings.

[0073] In order to increase the stability of stacking the battery cells and the welding ribbons on the first conveyor belt 121, the first conveyor belt 121 is preferably a steel belt.

[0074] The battery string production equipment provided by the present invention adopts at least two carrying mechanisms 11 to respectively carry battery cells, welding strips and pressing tools when producing battery strings, and the at least two carrying mechanisms 11 are made close to each other and then fall on the first conveyor belt 121 to form a battery string stacked by battery cells and welding strips on the first conveyor belt 121. The method of stacking battery cells and welding strips can effectively improve the stacking efficiency of the battery string, thereby improving the production efficiency of the battery string.

[0075] In one embodiment, preferably, Figure 2 and Figure 3 As shown, the stacking device 1 further includes a support plate 13 located below the first conveyor belt 121 and used for supporting the rear section of the welding ribbon on the carrying mechanism 11 .

[0076] Among them, Figure 4 and Figure 5 As shown (in order to conveniently show the matching relationship between the supporting mechanism 11 and the support plate 13, the first conveyor belt is not shown in the figure), the support plate 13 is provided with a strip groove 131 for the support portion 112 of the supporting frame to move back and forth, and the support portion 112 is configured to be able to pass through the strip groove 131 from bottom to top and extend out of the first conveyor belt 121, and the support portion 112 can move along the strip groove 131.

[0077] The support plate 13 is also provided with a guide groove 132 for guiding the rear section of the welding strip on the carrier. After the stacked battery cells, welding strips and pressing tools on the carrier fall onto the first conveyor belt 121, the rear section of the welding strip falls into the guide groove 132. During the operation of the first conveyor belt 121, each welding strip is supported and guided by the guide groove 132.

[0078] In this embodiment, the stacking device 1 also includes a second conveying device 14, which is located on the inner side of the first conveyor belt 121 and downstream of the supporting mechanism 11; the second conveying device 14 includes a second conveyor belt, and after the battery cells, welding strips and pressing tooling stacked on the supporting mechanism 11 fall onto the first conveyor belt 121, they are conveyed by the first conveyor belt 121 to the top of the second conveyor belt, wherein the rear section of the welding strip stacked on the battery cells is supported by the second conveyor belt and conveyed synchronously with the first conveyor belt 121.

[0079] That is to say, during the conveying process of the first conveyor belt 121, the rear section of the welding tape is transferred from the support plate 13 under the first conveyor belt 121 to the second conveyor belt, and the rear section of the welding tape continues to be supported by the second conveyor belt. Then, the first conveyor belt 121 and the second conveyor belt operate synchronously to jointly convey the battery string formed by stacking battery cells and welding tapes to the welding station, and the battery string is welded at the welding station.

[0080] In order to transport the stacked battery string to the welding station, a second conveying device may also be provided at the tail end of the first conveying device 12;

[0081] After the stacked battery cells, welding strips and pressing tools on the supporting mechanism 11 fall onto the first conveyor belt 121, they are transported by the first conveyor belt 121 and transported from the tail end of the first conveyor belt 121 to the second conveyor device, and then transported by the second conveyor device to the welding station for welding.

[0082] In this embodiment, the battery string production equipment further includes a battery cell conveying device 2. The specific structure of the battery cell conveying device 2 is shown in FIG. Figure 6 and Figure 7 , the cell conveying device 2 includes a third conveying device 21 and a fourth conveying device 22 located downstream of the third conveying device 21;

[0083] Wherein, one of the third conveying device 21 and the fourth conveying device 22 is configured to include two parallel conveying belts, and the conveying belt of the other is configured to extend into between the two parallel conveying belts, and the upper surfaces of the conveying belts of the third conveying device 21 and the fourth conveying device 22 are flush;

[0084] The transport device includes a cell transport device (not shown) for transporting cell sheets. The cell transport device transports the cell sheets from the fourth conveying device 22 and places the cell sheets on the carrying mechanism 11 .

[0085] In the process of conveying the battery cells, the battery cells conveyed to the fourth conveying device 22 can be controlled by controlling the third conveying device 21, thereby controlling the number and / or spacing of the battery cells provided by the third conveying device 21 to the fourth conveying device 22. Therefore, by conveying the battery cells by two intersecting conveying devices, the conveying of the battery cells can be flexibly controlled to meet different requirements for conveying the battery cells.

[0086] In order to facilitate the conveying device to carry the battery cells from the fourth conveying device 22 located downstream, tidying mechanisms 23 for tidying the conveyed battery cells are respectively provided on both sides of the frame of the fourth conveying device 22 located downstream. After the battery cells are tidying by the tidying mechanism 23, the battery cells are in a predetermined position, so that the conveying device conveys the battery cells at the predetermined position, which is conducive to improving the conveying efficiency of the battery cells.

[0087] The tidying mechanism 23 includes a tidying frame movably mounted on the frame of the fourth conveying device 22 and rollers arranged on the tidying frame. When the tidying frames on both sides of the frame move toward each other, the tidying wheels tidy the battery cells from both sides of the battery cells.

[0088] The tidying frame may specifically include a mounting bar movably mounted on the frame and extending in the conveying direction, and at least two roller mounting blocks spaced apart along the length direction on the mounting bar, each of the roller mounting blocks being provided with the roller. The mounting position of the roller mounting block on the mounting bar is adjustable. Of course, the structure of the tidying frame is not limited thereto, and any other structure that is equipped with rollers and can drive the rollers to push the battery cells from both sides of the battery cells may be used.

[0089] Preferably, the battery string production equipment further comprises a battery cell detection device and a waste box 4 , wherein the battery cell detection device detects the regularized battery cells on the fourth conveying device 22 , and the detected defective battery cells are placed on the waste box 4 .

[0090] In this embodiment, the transport device includes a solder strip tooling transport device (not shown in the figure), which is configured to transport the pressing tooling and solder strips, and place the transported pressing tooling and solder strips on the battery cell of the supporting mechanism.

[0091] Preferably, the welding strip tooling handling device comprises a mounting frame and at least two mobile modules arranged in a straight line on the mounting frame, each of the mobile modules comprises a tooling picking mechanism and a welding strip clamping mechanism for clamping the welding strip, and after the tooling picking mechanism of each mobile module picks up and presses the tooling, the welding strip clamping mechanism clamps the welding strip;

[0092] The at least two mobile modules are configured to be able to move toward and away from each other. After the mobile modules move to adjust the spacing between adjacent mobile modules to be consistent with the spacing between adjacent supporting mechanisms 11, each mobile module releases the clamping tooling and welding ribbon it is carrying onto the battery cell of the corresponding supporting mechanism 11.

[0093] Specifically, Figure 1As shown, the battery string production equipment also includes a plurality of welding ribbon rolls 6 for winding welding ribbons, a welding ribbon pulling device for pulling the welding ribbon from the welding ribbon rolls 6, and a tool conveying device 5 for conveying a pressing tool;

[0094] When the welding tape tool handling device moves to the tool conveying device 5, the tool picking mechanism of each mobile module picks up a pressing tool 20 from the tool conveying device 5, and when the welding tape tool handling device moves to the top of the welding tape pulled by the welding tape pulling device, the welding tape clamping mechanism of each mobile module is configured to clamp the pulled welding tape at a predetermined position, and after the welding tape is cut, each mobile module clamps a group of welding tapes;

[0095] Preferably, the battery string production equipment also includes one or at least two solder strip pressing devices 7 arranged at intervals along the length direction of the solder strip. Before the solder strip clamping mechanism clamps the solder strip, the solder strip pressing device 7 is configured to press the solder strip pulled by the solder strip pulling device, so that the middle part of the solder strip clamped by each of the mobile modules is pressed into a flat or bent structure, thereby facilitating the stacking of battery cells and solder strips.

[0096] The welding strip tooling handling device provided in this embodiment can carry at least two components (each component includes a clamping tool and a group of welding strips) at a time by setting at least two mobile modules, and then each mobile module corresponds to a carrying mechanism to release the carried components, thereby greatly improving the handling efficiency.

[0097] Those skilled in the art will appreciate that the transportation of the clamping tool and the soldering strip is not limited to the above-mentioned transportation method. Two independent transportation devices may be provided to transport the clamping tool and the soldering strip respectively. Alternatively, a transportation device may be provided to transport the battery cell, the soldering strip and the clamping tool together.

[0098] According to another aspect of the present invention, there is also provided a battery string production method, wherein the battery string production method adopts the battery string production device as described above, wherein the battery string production method comprises:

[0099] Controlling at least two carriers of the carrier mechanism 11 to move upward, so that the support portions 112 of the carriers extend upward out of the first conveyor belt 121;

[0100] Control the handling device to place the battery cell, the welding tape and the pressing tool on the support portion 112 of each carrier extending out of the first conveyor belt 121, wherein on each of the carrier mechanisms 11, the battery cell is placed on the support portion 112, the front section of the welding tape is overlapped on the battery cell, the rear section of the welding tape extends backwards from the battery cell, and the pressing tool is pressed on the front section of the welding tape;

[0101] Controlling at least two of the carriers to be arranged in a ladder-like manner from low to high in a direction from front to back, and controlling the at least two carriers to be close to each other, so that the battery cells on the higher carrier among the adjacent carriers are stacked above the rear section of the welding strip on the lower carrier;

[0102] Control the support frames of at least two of the support mechanisms 11 to descend, so that the battery cells, welding strips and pressing tools carried by the support frames fall onto the first conveyor belt 121, and the battery cells and welding strips are stacked on the first conveyor belt 121 to form a battery string;

[0103] The battery string is welded using a welding device.

[0104] In one embodiment, preferably, a second conveying device 14 located downstream of the carrying mechanism 11 is provided inside the first conveyor belt 121;

[0105] The method of welding the battery string using a welding device comprises:

[0106] The first conveyor belt 121 conveys the carried battery string;

[0107] When the first conveying device 12 conveys the battery string to the upper part of the second conveying device 14, the rear section of the welding ribbon group of the battery string is supported by the second conveying belt of the second conveying device 14, and the first conveying device 12 and the second conveying device 14 synchronously convey the battery string to the welding station;

[0108] The welding device located at the welding station is controlled to weld the battery string.

[0109] In another embodiment, preferably, a second conveying device 14 is provided at the tail end of the first conveying device 12;

[0110] The method of welding the battery string using a welding device comprises:

[0111] The first conveyor belt 121 conveys the carried battery string, and the battery string is transferred to the second conveyor device at the tail end of the first conveyor device 12;

[0112] The second conveying device conveys the battery string to a welding station;

[0113] The welding device located at the welding station is controlled to weld the battery string.

[0114] In another embodiment, the handling device includes a cell handling device and a ribbon tooling handling device;

[0115] The controlling the transport device to place the battery cell, the welding ribbon and the pressing tool on the supporting portion of each carrier extending out of the first conveyor belt 121 includes:

[0116] Control the cell transport device to transport the cell from the cell conveyor device 2 and place the cell on the support portion 112 of the carrier;

[0117] The welding strip tool handling device comprises at least two moving modules, and each of the at least two moving modules is controlled to pick up a pressing tool respectively, and each of the moving modules respectively clamps a group of welding strips;

[0118] Each of the mobile modules of the solder strip tooling transport device is controlled to move to a position corresponding to one of the carrying mechanisms 11 , and the solder strip and the pressing tooling transported by each of the mobile modules are placed on the battery cell of the corresponding carrying mechanism 11 .

[0119] According to the following Figure 1 The battery string production equipment provided in the illustrated embodiment describes the battery string production process.

[0120] Controlling at least two supporting mechanisms 11 in the stacking device to be arranged at a predetermined distance;

[0121] The lifting mechanism 114 of the carrying mechanism 11 drives the carrying frame to move upward, so that the supporting portion 112 on the carrying frame extends upward from the first conveyor belt 121;

[0122] The manipulator is controlled to carry the battery cells in the battery cell feeding box 3 to the third conveying device 21 of the battery cell conveying device 2. The third conveying device 21 conveys the battery cells 10. When the battery cells 10 are conveyed to the regular position on the fourth conveying device 22, the regularizing mechanism 23 regularizes the position of the battery cells 10 at the regular position. The battery cell conveying device carries the regularized battery cells from the fourth conveying device 22 and places the battery cells on the supporting portion 112 of each carrying mechanism 11.

[0123] Control the welding strip tool handling device to move to the tool conveying device 5, and each moving module of the welding strip tool handling device picks up a pressing tool 20 from the tool conveying device 5;

[0124] The welding tape pulling device pulls a plurality of parallel welding tapes from a plurality of welding tape rolls 6, and the welding tapes pass through at least one welding tape pressing device 7, and the welding tape pressing device 7 presses the predetermined positions of the welding tapes;

[0125] The welding strip tool handling device moves to the top of the pulled welding strip after picking up the pressing tool 20, and the welding strip clamping mechanism provided on each mobile module clamps the predetermined position of the welding strip. After cutting the welding strip, the welding strip clamping mechanism of each mobile module clamps a group of welding strips, wherein the middle position of the welding strip is a flat or bent structure formed by the welding strip pressing device 7;

[0126] Adjust the spacing between the moving modules of the welding ribbon tooling transport device so that the spacing between adjacent moving modules is consistent with the spacing between adjacent carrying mechanisms 11, so that each moving module can correspond to one carrying mechanism 11, and then each moving module places the carried pressing tooling and welding ribbon on the battery cell of the carrying mechanism 11;

[0127] Control the lifting mechanism 114 to drive the carriers of the at least two carrier mechanisms 11 to be arranged in a ladder-like manner from low to high in a front-to-back direction, and then control the at least two carrier mechanisms 11 to be close to each other so that the battery cells on the higher carrier of the adjacent carriers are stacked on the rear section of the welding strip on the lower carrier;

[0128] Control the lifting mechanism 114 to drive the carrier to descend, so that the battery cells, welding strips and pressing tools stacked on the carrier fall onto the first conveyor belt 121, and the battery cells and welding strips are stacked on the first conveyor belt 121 to form a battery string;

[0129] The first conveyor belt 121 conveys the carried battery string forward. During the conveying process, the rear section of the welding ribbon in the battery string is supported by the support plate 13 located below the first conveyor belt 121 and guided by the guide groove 132 on the support plate 13. When the first conveyor belt 121 continues to convey until the welding ribbon is separated from the support plate 13, the rear section of the welding ribbon moves to the second conveyor belt of the second conveying device 14 located downstream of the support plate 13. The first conveyor belt 121 and the second conveyor belt convey synchronously.

[0130] When the battery string on the first conveyor belt 121 is conveyed to the welding station, the welding device located at the welding station welds the battery string.

[0131] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A battery string production device, characterized in that: The battery string production equipment includes a handling device, a stacking device and a welding device; The handling device is configured to carry battery cells, welding strips and pressing fixtures; The stacking device comprises a first conveying device and at least two bearing mechanisms, wherein the first conveying device comprises at least two first conveying belts arranged in parallel, and the at least two bearing mechanisms are arranged below the first conveying belt at intervals from front to back along the extension direction of the first conveying belt, and each of the bearing mechanisms comprises a base, a bearing frame, and a lifting mechanism for driving the bearing frame to rise and fall relative to the base; wherein the bearing frame comprises a bearing body located below the first conveying belt and at least two supporting parts arranged on the bearing body for supporting the battery sheets; the bearing mechanisms are arranged to be able to translate so that adjacent bearing mechanisms can approach or move away from each other; Wherein, when the lifting mechanism drives the carrier to rise, the support portion extends upward from the gap between adjacent first conveyor belts and / or the outer side of the first conveyor belt, and the handling device places the battery cell, the welding strip and the pressing tool on the support portion of each of the bearing mechanisms; Wherein, on each of the bearing mechanisms, the battery cell is placed on the support portion, the front section of the welding strip is overlapped on the battery cell, the rear section of the welding strip extends backward from the battery cell, and the pressing tool is pressed on the front section of the welding strip; When the lifting mechanism drives the carriers of the at least two carrier mechanisms to be arranged in a ladder-like manner from low to high in a front-to-back direction, the at least two carriers are close to each other so that the battery cells on the higher carrier of the adjacent carriers are stacked on the rear section of the welding strip on the lower carrier; When the lifting mechanism drives the carrier to descend, the battery cells, welding strips and pressing tooling stacked on the carrier fall onto the first conveyor belt, and the battery cells and welding strips are stacked on the first conveyor belt to form a battery string; The battery string production equipment further includes a welding device for welding the stacked battery strings.

2. The battery string production equipment according to claim 1, characterized in that: The stacking device further comprises a support plate located below the first conveyor belt and used for supporting the rear section of the welding strip; The support plate is provided with a strip groove for the support portion of the carrier to move back and forth; The support plate is also provided with a guide groove for guiding the rear section of the welding tape on the carrier. After the stacked battery cells, welding tape and pressing tooling on the carrier fall onto the first conveyor belt, the rear section of the welding tape falls into the guide groove.

3. The battery string production equipment according to claim 1, characterized in that: The stacking device further comprises a second conveying device, which is located inside the first conveying belt and downstream of the carrying mechanism; The second conveying device includes a second conveyor belt. After the battery cells, welding strips and pressing tools stacked by the supporting mechanism fall onto the first conveyor belt, they are transported by the first conveyor belt to above the second conveyor belt of the second conveying device. The rear section of the welding strip is supported by the second conveyor belt and conveyed synchronously with the first conveyor belt.

4. The battery string production equipment according to claim 1, characterized in that: The stacking device further comprises a second conveying device, wherein the second conveying device is located at the rear end of the first conveying device; After the battery cells, welding strips and pressing tools stacked on the carrying mechanism fall onto the first conveyor belt, they are conveyed by the first conveyor belt and then conveyed from the first conveyor belt to the second conveyor device.

5. The battery string production equipment according to any one of claims 1 to 4, characterized in that: The battery string production equipment further includes a battery cell conveying device, wherein the battery cell conveying device includes a third conveying device and a fourth conveying device located downstream of the third conveying device; Wherein, one of the third conveying device and the fourth conveying device is configured to include two parallel conveying belts, and the conveying belt of the other is configured to extend into between the two parallel conveying belts, and the upper surfaces of the conveying belts of the third conveying device and the fourth conveying device are flush; The transport device comprises a battery cell transport device for transporting battery cells, and the battery cell transport device transports the battery cells from the fourth conveying device and places them on the carrying mechanism.

6. The battery string production equipment according to claim 5, characterized in that: Both sides of the frame of the fourth conveying device located downstream are respectively provided with a tidying mechanism for tidying the conveyed battery sheets; The aligning mechanism comprises an aligning frame movably mounted on the frame and rollers arranged on the aligning frame. When the aligning frames on both sides of the frame move toward each other, the rollers align the battery cells from both sides of the battery cells.

7. The battery string production equipment according to claim 6, characterized in that: The battery string production equipment also includes a battery cell detection device and a waste box. The battery cell detection device detects the regularized battery cells on the fourth conveying device, and the defective battery cells detected are placed on the waste box.

8. The battery string production equipment according to any one of claims 1 to 4, characterized in that: The transport device comprises a welding strip tool transport device, and the welding strip tool transport device is configured to transport a pressing tool and welding strips, and place the transported pressing tool and welding strips on the battery sheet of the carrying mechanism.

9. The battery string production equipment according to claim 8, characterized in that: The welding strip tooling handling device comprises a mounting frame and at least two movable modules arranged along a straight line on the mounting frame, each movable module comprises a tooling picking mechanism and a welding strip clamping mechanism for clamping the welding strip, and after the tooling picking mechanism of each movable module picks up and presses the tooling, the welding strip clamping mechanism clamps the welding strip; The at least two mobile modules are configured to be able to move toward and away from each other. After the mobile modules move to adjust the spacing between adjacent mobile modules to be consistent with the spacing between adjacent supporting mechanisms, each mobile module releases the clamping tooling and welding ribbon it is carrying onto the battery cell of the corresponding supporting mechanism.

10. The battery string production equipment according to claim 9, characterized in that: The battery string production equipment also includes a plurality of welding ribbon rolls for winding welding ribbons, a welding ribbon pulling device for pulling the welding ribbons from the welding ribbon rolls, and a tool conveying device for conveying a pressing tool; When the welding tape tool handling device moves to the tool conveying device, the tool picking mechanism of each mobile module picks up a pressing tool from the tool conveying device, and when the welding tape tool handling device moves above the welding tape pulled by the welding tape pulling device, the welding tape clamping mechanism of each mobile module is configured to clamp the pulled welding tape at a predetermined position, and after the welding tape is cut, each mobile module clamps a group of welding tapes; The battery string production equipment also includes one or at least two solder strip pressing devices arranged at intervals along the length direction of the solder strip. Before the solder strip clamping mechanism clamps the solder strip, the solder strip pressing device is configured to press the solder strip pulled by the solder strip pulling device, so that the middle part of the solder strip clamped by each of the mobile modules is pressed into a flat or bent structure.

11. A method for producing a battery string, characterized in that: The battery string production method is used for the battery string production equipment according to claim 1, wherein the battery string production method comprises: Controlling at least two of the support frames of the support mechanisms to move upward so that the support portions of the support frames extend upward out of the first conveyor belt; Control the handling device to place the battery cell, the welding tape and the pressing tool on the support portion of each carrier extending from the first conveyor belt, wherein on each of the carriers, the battery cell is placed on the support portion, the front section of the welding tape is overlapped on the battery cell, the rear section of the welding tape extends backward from the battery cell, and the pressing tool is pressed on the front section of the welding tape; Controlling at least two of the carriers to be arranged in a ladder-like manner from low to high in a direction from front to back, and controlling the at least two carriers to be close to each other, so that the battery cells on the higher carrier among the adjacent carriers are stacked above the rear section of the welding strip on the lower carrier; Controlling the carriers of at least two of the carrier mechanisms to descend, so that the battery cells, welding strips and pressing tools carried by the carriers fall onto the first conveyor belt, and the battery cells and welding strips are stacked on the first conveyor belt to form a battery string; The battery string is welded using a welding device.

12. The battery string production method according to claim 11, characterized in that: A second conveying device is provided on the inner side of the first conveyor belt and is located downstream of the carrying mechanism; The method of welding the battery string using a welding device comprises: The first conveyor belt conveys the carried battery string; When the first conveying device conveys the battery string to the upper part of the second conveying device, the rear section of the welding ribbon group of the battery string is supported by the second conveying belt of the second conveying device, and the first conveying device and the second conveying device synchronously convey the battery string to the welding station; The welding device located at the welding station is controlled to weld the battery string.

13. The method for producing a battery string according to claim 11, characterized in that: A second conveying device is provided at the tail end of the first conveying device; The method of welding the battery string using a welding device comprises: The first conveyor belt conveys the battery string carried thereon, and the battery string is transferred to the second conveyor device at the tail end of the first conveyor device; The second conveying device conveys the battery string to a welding station; The welding device located at the welding station is controlled to weld the battery string.

14. The method for producing a battery string according to any one of claims 11 to 13, characterized in that: The handling device includes a battery cell handling device and a welding strip tooling handling device; The controlling the transport device to place the battery cell, the welding ribbon and the pressing tool on the supporting portion of each carrier extending out of the first conveyor belt comprises: Controlling the battery cell transporting device to transport the battery cells from the battery cell conveying device and place the battery cells on the supporting portion of the carrier; The welding strip tool handling device comprises at least two moving modules, and each of the at least two moving modules is controlled to pick up a pressing tool respectively, and each of the moving modules respectively clamps a group of welding strips; Each of the mobile modules of the solder strip tooling transport device is controlled to move to a position corresponding to each of the carrying mechanisms, and the solder strip and the pressing tooling transported by each of the mobile modules are placed on the battery cell of the corresponding carrying mechanism.

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