Battery assembly production equipment and battery assembly production method

Abstract

The present invention provides a battery assembly production device and a battery assembly production method, the battery assembly production device includes: a welding bearing device, a battery string group providing device, a transverse bus bar providing device, a bypass bus bar providing device and a welding device; the battery string group providing device provides a first battery string group and a second battery string group, the transverse bus bar providing device provides a head end bus bar, a tail end bus bar and an intermediate bus bar; the bypass bus bar providing device provides a bypass bus bar; the bypass bus bar providing device includes a bypass bus bar bearing device, an insulating tape laying device, a bypass bus bar laying device and a hot pressing device; the insulating tape laying device lays the insulating tape on the bypass bus bar bearing device, the bypass bus bar laying device is configured to lay the bypass bus bar on the insulating tape, and the hot pressing device welds the insulating tape and the bypass bus bar together. The technical solution provided by the present invention can efficiently produce battery assemblies.

Description

Technical Field

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

[0002] The production of photovoltaic modules is a process of modularizing single-cell cells. The main steps involved include: using welding ribbons to weld single-cell cells (whole cells that have not been broken or half cells that have been broken) into strings, then arranging the welded cell strings in parallel to form a cell string group, and then welding bus bars on the welding ribbons of the cell string group.

[0003] Currently, in the production process of battery strings, bypass bus bars and end bus bars parallel to the battery strings are usually welded in the battery string.

[0004] To this end, it is necessary to provide a current component production equipment or production method to enable efficient production of battery components. Summary of the invention

[0005] The object of the present invention is to provide a battery assembly production device and a battery assembly production method so as to efficiently produce battery assemblies.

[0006] In order to achieve the above-mentioned object, the present invention provides a battery assembly production device, which includes: a welding support device, a battery string providing device, a transverse bus bar providing device, a bypass bus bar providing device and a welding device;

[0007] The battery string group providing device provides a first battery string group and a second battery string group, wherein the first battery string group and the second battery string group each include at least two battery strings arranged side by side along a width direction of the battery string;

[0008] The transverse busbar providing device is used to provide a head end busbar, a tail end busbar and a middle busbar;

[0009] The bypass busbar providing device is used to provide a bypass busbar;

[0010] The first battery string group, the second battery string group, the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar provided are placed on the welding carrier; wherein the first battery string group and the second battery string group are arranged on the welding carrier along the length direction of the battery string; the head end bus bar is stacked below the head end welding strip of the first battery string group, the middle bus bar is stacked below the tail end welding strip of the first battery string group and the head end welding strip of the second battery string group, and the tail end bus bar is stacked below the tail end welding strip of the second battery string group; the bypass bus bar extends along the length direction of the battery string, and one end of the bypass bus bar is stacked on the head end bus bar, and the other end is stacked on the tail end bus bar;

[0011] The welding device welds the welding strips of the first battery string group and the second battery string group carried on the welding carrying device with the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar to form a battery assembly;

[0012] Among them, the bypass busbar providing device includes a bypass busbar carrying device, an insulating tape laying device, a bypass busbar laying device and a hot pressing device; the insulating tape laying device is configured to lay the insulating tape on the bypass busbar carrying device, the bypass busbar laying device is configured to lay the bypass busbar on the insulating tape of the bypass busbar carrying device, and the hot pressing device welds the insulating tape on the bypass busbar carrying device and the bypass busbar together.

[0013] Preferably, the insulating tape laying device comprises an insulating tape roll, an insulating tape pulling device, an insulating tape pressing device and an insulating tape cutting device, the insulating tape roll is located at the first end of the bypass busbar carrying device, when the insulating tape pulling device pulls the insulating tape from the insulating tape roll and moves to a preset position toward the second end of the bypass busbar carrying device, the insulating tape pressing device presses the insulating tape, and the insulating tape cutting device cuts the pressed insulating tape, and the cut insulating tape is laid on the bypass busbar carrying device;

[0014] The bypass bus bar laying device includes a bypass bus bar roll, a bypass bus bar pulling device, a bypass bus bar pressing device and a bypass bus bar cutting device. The bypass bus bar roll is located at the second end of the bypass bus bar carrying device. When the bypass bus bar pulling device pulls the bus bar from the bypass bus bar roll and moves to a preset position toward the first end of the bypass bus bar carrying device, the bypass bus bar pressing device presses the bus bar, and the bypass bus bar cutting device cuts the pressed bus bar. The bypass bus bar obtained after cutting is laid on the insulating tape of the bypass bus bar carrying device.

[0015] Preferably, the bypass busbar providing device further comprises a first busbar providing device and a first busbar welding device;

[0016] The first bus bar providing device is configured to provide a first bus bar and place the first bus bar on the bypass bus bar of the bypass bus bar carrying device, the first bus bar welding device welds the first bus bar and the bypass bus bar together, and the bypass bus bar providing device provides the bypass bus bar welded with the insulating tape and the first bus bar.

[0017] Preferably, the first busbar providing device comprises a first carrying platform, a first bending mechanism and a first handling device;

[0018] The first carrier is used to carry the busbar to be bent. When the busbar is located on the first carrier and one end thereof extends out of the first carrier, the first handling device presses the busbar against the first carrier, and the first bending mechanism bends the portion of the busbar extending out of the first carrier to form the first busbar in an L shape.

[0019] The first busbar welding device is arranged at the end position of the second end of the bypass busbar carrying device, and the first busbar welding device includes a welding head that can be raised and lowered. When the bypass busbar pulling device pulls the busbar from the bypass busbar coil to a predetermined position, the welding head rises, and the first conveying device absorbs the first busbar from the first carrying platform and places the first busbar at a position of the bypass busbar corresponding to the welding head, and presses the first busbar, and the welding head welds the first busbar to the bypass busbar.

[0020] Preferably, the first busbar providing device further comprises a first busbar pulling device, a first busbar pressing device and a first busbar cutting device;

[0021] When the first bus bar pulling device pulls the bus bar until the front end of the bus bar extends out of the first supporting platform, the first bus bar pressing device presses the bus bar pulled by the first bus bar pulling device, and the first bus bar cutting device cuts the bus bar, and the cut bus bar is located on the first supporting platform and the front end extends out of the first supporting platform.

[0022] Preferably, the transverse bus bar providing device comprises a head end bus bar providing device, a tail end bus bar providing device and an intermediate bus bar providing device, wherein the head end bus bar providing device is used to provide the head end bus bar, the tail end bus bar providing device is used to provide the tail end bus bar, and the intermediate bus bar providing device is used to provide the intermediate bus bar;

[0023] The intermediate bus bar providing device comprises an intermediate bus bar carrying platform, an intermediate bus bar pulling device, an intermediate bus bar cutting device, a second bus bar providing device and a second bus bar welding device, at least two intermediate bus bar carrying platforms are provided, the intermediate bus bar pulling device pulls a bus bar toward each intermediate bus bar carrying platform and the intermediate bus bar cutting device cuts the bus bar, so that each intermediate bus bar carrying platform carries a section of the intermediate bus bar;

[0024] The second bus bar providing device places the second bus bar on the intermediate bus bar of one of the intermediate bus bar carrying platforms, and the second bus bar welding device welds the second bus bar and the intermediate bus bar together;

[0025] The intermediate bus bar providing device provides at least two sections of intermediate bus bars to the welding supporting device, wherein one section of the intermediate bus bar is welded with the second bus bar.

[0026] Preferably, the second busbar providing device comprises a second carrying platform, a second bending mechanism and a second handling device;

[0027] When the busbar is located on the second carrying platform and the front end extends out of the second carrying platform, the second conveying device presses the busbar against the second carrying platform, the second bending mechanism bends the part of the busbar extending from the second carrying platform to form an L-shaped second busbar, and the second conveying device absorbs the second busbar from the second carrying platform and conveys the second busbar to the middle busbar of one of the middle busbar carrying platforms.

[0028] According to another aspect of the present invention, there is also provided a battery assembly production method, the battery assembly production method comprising:

[0029] providing a bypass bus bar by means of a bypass bus bar providing device;

[0030] Providing a head end bus bar, a tail end bus bar and a middle bus bar through a transverse bus bar providing device;

[0031] Providing a first battery string group and a second battery string group by a battery assembly providing device, wherein the first battery string group and the second battery string group each include at least two battery strings arranged side by side along a width direction of the battery string;

[0032] The provided bypass bus bar, the head end bus bar, the end tail end bus bar, the middle bus bar, the first battery string group and the second battery string group are placed on a welding carrier; wherein the first battery string group and the second battery string group are arranged on the welding carrier along the length direction of the battery string; the head end bus bar is stacked below the head end welding strip of the first battery string group, the middle bus bar is stacked below the tail end welding strip of the first battery string group and the head end welding strip of the second battery string group, and the tail end bus bar is stacked below the tail end welding strip of the second battery string group; the bypass bus bar extends along the length direction of the battery string, and one end of the bypass bus bar is stacked on the head end bus bar, and the other end is stacked on the tail end bus bar;

[0033] Controlling the welding device to weld the welding strips of the first battery string group and the second battery string group carried on the welding carrying device with the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar to form a battery assembly;

[0034] Wherein, the control bypass busbar providing device provides a bypass busbar, including:

[0035] Laying insulating tape on the bypass busbar carrier;

[0036] Laying a bypass bus bar on the insulating tape of the bypass bus bar carrying device;

[0037] The bypass bus bar and the insulating tape are welded together.

[0038] Preferably, laying the insulating tape on the bypass busbar supporting device comprises:

[0039] Using an insulating tape pulling device to pull the insulating tape from the insulating tape roll located at the first end of the bypass busbar carrying device toward the second end of the bypass busbar carrying device, and cutting the pulled insulating tape, and laying the cut insulating tape on the bypass busbar carrying device;

[0040] Alternatively, laying the insulating tape on the bypass busbar supporting device comprises:

[0041] Using an insulating tape pulling device to pull the insulating tape from the insulating tape roll located at the first end of the bypass busbar carrying device toward the second end of the bypass busbar carrying device to a first preset position, and cutting the pulled insulating tape, and laying the cut first section of the insulating tape on the bypass busbar carrying device;

[0042] The insulating tape pulling device again pulls the insulating tape from the insulating tape roll toward the second end of the bypass busbar carrying device to a second preset position, and cuts the pulled insulating tape to obtain a second section of insulating tape. The insulating tape pulling device continues to pull the cut second section of insulating tape to a third preset position, and the insulating tape is laid on the bypass busbar carrying device; wherein the first section of insulating tape and the second section of insulating tape are arranged on the bypass busbar carrying device with a gap in the length direction.

[0043] Preferably, laying the bypass busbar on the insulating tape of the bypass busbar carrying device comprises:

[0044] A bypass busbar pulling device is used to pull a busbar from a bypass busbar roll located at the second end of the bypass busbar carrying device toward the first end of the bypass busbar carrying device, and the pulled busbar is cut, and the cut bypass busbar is laid on the insulating tape of the bypass busbar carrying device.

[0045] Preferably, the control bypass busbar providing device provides a bypass busbar, and further comprises:

[0046] The first bus bar is placed at a preset position of the bypass bus bar, and the first bus bar and the bypass bus bar are welded together.

[0047] Preferably, placing the first bus bar at a preset position of the bypass bus bar and welding the first bus bar and the bypass bus bar together comprises:

[0048] The first busbar pulling device is used to pull the busbar until the front end of the busbar exceeds the first bearing platform;

[0049] Cutting the busbar pulled by the first busbar pulling device at a preset position, wherein the cut busbar is located on the first carrying platform and the front end thereof extends out of the first carrying platform;

[0050] The first bending mechanism is used to push the busbar extending from the first carrier upward, so that the busbar on the first carrier is bent to form the first busbar in an L shape; wherein when the first bending mechanism bends the busbar, the first handling device presses the busbar onto the first carrier;

[0051] When the bypass busbar pulling device pulls the busbar to a predetermined position, the welding head of the first busbar welding device is driven to rise, wherein the welding head is located at the end position of the second end of the bypass busbar supporting device, and the first transporting device transports the first busbar to and presses the position of the bypass busbar corresponding to the welding head, and the welding head welds the first busbar to the bypass busbar.

[0052] Preferably, the transverse busbar providing device comprises a head end busbar providing device, a tail end busbar providing device and a middle busbar providing device;

[0053] The method of providing the head end bus bar, the tail end bus bar and the middle bus bar by the transverse bus bar providing device comprises:

[0054] Providing a head-end bus bar through the head-end bus bar providing device, providing a tail-end bus bar through the tail-end bus bar providing device, and providing a middle bus bar through the middle bus bar providing device;

[0055] Wherein, providing the intermediate bus bar by the intermediate bus bar providing device comprises:

[0056] Pulling a busbar toward each of the intermediate busbar carriers and cutting it, so that each intermediate busbar carrier carries a section of the intermediate busbar, wherein at least two intermediate busbar carriers are provided;

[0057] The second bus bar is placed on the middle bus bar of one of the middle bus bar carriers by a second bus bar providing device, and the second bus bar is welded together with the middle bus bar by a second bus bar welding device.

[0058] Preferably, the second busbar providing device comprises a second carrying platform, a second bending mechanism and a second handling device;

[0059] Placing the second bus bar on the middle bus bar of one of the middle bus bar carriers by the second bus bar providing device comprises:

[0060] When the bus bar is pulled until the front end of the bus bar extends out of the second carrier platform, the bus bar is cut, and the cut bus bar is located on the second carrier platform and the front end of the bus bar extends out of the second carrier platform;

[0061] The second conveying device is controlled to press the bus bar onto the second carrier, the second bending mechanism bends the portion of the bus bar extending from the second carrier to form an L-shaped second bus bar, the second conveying device absorbs the second bus bar from the second carrier and conveys the second bus bar to the middle bus bar of one of the middle bus bar carriers

[0062] In the technical solution provided by the present invention, a battery assembly having a bypass bus bar, a head end bus bar, a tail end bus bar and an intermediate bus bar can be produced efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0064] Figure 1 A schematic diagram of the structure of a battery assembly production device according to one embodiment of the present invention;

[0065] Figure 2 A schematic diagram of a battery assembly to be produced according to one embodiment of the present invention;

[0066] Figure 3 A schematic structural diagram of a bypass busbar providing device according to one embodiment of the present invention;

[0067] Figure 4 for Figure 3 A partial enlarged view of

[0068] Figure 5 for Figure 3 A partial enlarged view from another angle;

[0069] Figure 6 for Figure 3 An enlarged view of the structure at the preparation location of the first busbar;

[0070] Figure 7 It is a structural schematic diagram of the hot pressing device (seen from the bottom);

[0071] Figure 8 A schematic diagram of the structure of a device providing an intermediate bus bar.

[0072] Description of Reference Numerals

[0073] 1-welding support device; 2-glass plate; 3-bypass busbar providing device; 31-bypass busbar support device; 32-insulating tape roll; 33-bypass busbar roll; 34-insulating tape traction device; 35-bypass busbar traction device; 36-bypass busbar pressing device; 37-bypass busbar cutting device; 38-hot pressing device; 381-mounting beam; 382-hot pressing block; 3821-hot pressing part; 39-first busbar traction device; 310-first busbar pressing device; 311-first busbar cutting device; 312-first support platform; 313-first bending mechanism; 314-first handling device; 315-first busbar welding device. 4-intermediate bus bar providing device; 41-first intermediate bus bar supporting platform; 42-second intermediate bus bar supporting platform; 43-third intermediate bus bar supporting platform; 44-second supporting platform; 45-second bending mechanism; 46-second bus bar welding device; 47-intermediate bus bar bending mechanism; 48-second handling device. DETAILED DESCRIPTION

[0074] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0075] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0076] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0077] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0078] The present invention provides a battery assembly production device, which includes: a welding carrier 1, a battery string providing device, a transverse bus bar providing device, a bypass bus bar providing device and a welding device;

[0079] The battery string group providing device provides a first battery string group a1 and a second battery string group a2, wherein the first battery string group a1 and the second battery string group a2 each include at least two battery strings arranged side by side along a width direction of the battery string;

[0080] The transverse busbar providing device is used to provide a head end busbar c, a tail end busbar d and a middle busbar e;

[0081] The bypass busbar providing device is used to provide a bypass busbar b;

[0082] The first battery string group a1, the second battery string group a2, the head end bus bar c, the tail end bus bar d, the middle bus bar e and the bypass bus bar b are placed on the welding carrier device 1; wherein, Figure 2As shown, the first battery string group a1 and the second battery string group a2 are arranged on the welding carrier 1 along the length direction of the battery string; the head end bus bar c is stacked below the head end welding strip of the first battery string group a1, the middle bus bar e is stacked below the tail end welding strip of the first battery string group a1 and the head end welding strip of the second battery string group a2, and the tail end bus bar d is stacked below the tail end welding strip of the second battery string group a2; the bypass bus bar b extends along the length direction of the battery string, and one end of the bypass bus bar b is stacked on the head end bus bar c, and the other end is stacked on the tail end bus bar d;

[0083] The welding device welds the welding strips of the first battery string group a1 and the second battery string group a2 carried on the welding carrying device 1 together with the head end bus bar c, the tail end bus bar d, the middle bus bar e and the bypass bus bar b to form a battery assembly;

[0084] Among them, the bypass bus bar providing device includes a bypass bus bar carrying device 31, an insulating tape laying device, a bypass bus bar laying device and a hot pressing device 38; the insulating tape laying device is configured to lay the insulating tape on the bypass bus bar carrying device 31, the bypass bus bar laying device is configured to lay the bypass bus bar on the insulating tape of the bypass bus bar carrying device 31, and the hot pressing device 38 welds the insulating tape and the bypass bus bar on the bypass bus bar carrying device 31 together.

[0085] The battery assembly production equipment provided by the present invention is described in detail below according to a specific embodiment.

[0086] In a specific embodiment, Figure 1 As shown, the battery string group providing device includes a glass plate 2 for carrying the first battery string group a1 and the second battery string group a2 and a battery string group carrying device;

[0087] The battery string providing device may further include a conveying device and a aligning device, wherein the conveying device carries the glass plate 2 and conveys the glass plate 2 to a loading station, and the aligning device aligns the position of the glass plate 2 at the loading station.

[0088] The glass plate 2 is configured to be movable from a loading station to an unloading station. When the glass plate 2 is located at the loading station, the battery string group transporting device transports the first battery string group a1 and the second battery string group a2 on the glass plate 2 to the welding carrier 1;

[0089] When the glass plate 2 moves to the unloading station, the battery string transporting device transports the battery assembly formed after welding on the welding carrying device 1 to the glass plate 2 .

[0090] In this embodiment, if Figure 3-Figure 7 As shown, the bypass busbar providing device includes a bypass busbar carrying device 31 , an insulating tape laying device, a bypass busbar laying device and a hot pressing device 38 .

[0091] like Figure 3 As shown, the insulating tape laying device includes an insulating tape roll 32, an insulating tape pulling device 34, an insulating tape pressing device and an insulating tape cutting device. The insulating tape roll 32 is located at the first end of the bypass busbar carrying device 31. When the insulating tape pulling device 34 pulls the insulating tape from the insulating tape roll 32 and moves to a preset position toward the second end of the bypass busbar carrying device 31, the insulating tape pressing device presses the insulating tape, and the insulating tape cutting device cuts the pressed insulating tape. The cut insulating tape is laid on the bypass busbar carrying device 31;

[0092] The bypass bus bar laying device includes a bypass bus bar roll 33, a bypass bus bar pulling device 35, a bypass bus bar pressing device 36 and a bypass bus bar cutting device 37. The bypass bus bar roll 33 is located at the second end of the bypass bus bar carrying device 31. When the bypass bus bar pulling device 35 pulls the bus bar from the bypass bus bar roll 33 and moves to a preset position toward the first end of the bypass bus bar carrying device 31, the bypass bus bar pressing device 36 presses the bus bar, and the bypass bus bar cutting device 37 cuts the pressed bus bar. The bypass bus bar obtained after cutting is laid on the insulating tape of the bypass bus bar carrying device 31.

[0093] The insulating tape laying device is configured to lay one or at least two parallel insulating tapes on the bypass busbar carrying device 31 , and the bypass busbar laying device is configured to lay one bypass busbar on each of the insulating tapes.

[0094] When laying at least two parallel insulating tapes, at least two parallel insulating tape pulling devices 34 can pull at least two parallel insulating tapes at the same time, and at least two parallel insulating tapes obtained after cutting are laid on the bypass bus bar carrying device 31. Similarly, at least two parallel bypass bus bar pulling devices 35 can pull at least two parallel bus bars at the same time, and at least two parallel bypass bus bars respectively stacked on the insulating tapes are obtained after cutting. Figure 4 and Figure 5 Two side-by-side insulating tape pulls 34 and two side-by-side bypass busbar pulls 35 are shown.

[0095] Preferably, one of the insulating strips comprises at least two insulating strip segments which are arranged in a straight line and at intervals along the length direction, so that the bypass busbar stacked at the interval between the two insulating strip segments can be conductive to facilitate electrical connection with other busbars. In one embodiment, the specific laying process of the insulating tape segment on the bypass busbar carrier 31 is as follows: at least two insulating tape pulling devices 34 each pull an insulating tape, and when one of the insulating tape pulling devices 34 pulls the insulating tape to move to the first preset position, the pulled insulating tape is cut, and the cut first section of the insulating tape is laid on the bypass busbar carrier 31; then the insulating tape pulling device 34 again pulls the insulating tape from the insulating tape roll 32 toward the second end of the bypass busbar carrier 31 to the second preset position, and cuts the insulating tape to obtain the second section of the insulating tape, and the insulating tape pulling device 34 pulls the cut second section of the insulating tape to the third preset position, and the second section of the insulating tape is laid on the bypass busbar carrier 31, and the first section of the insulating tape and the second section of the insulating tape are arranged in a straight line and at intervals in the length direction on the bypass busbar carrier 31, and there is a gap between the first section of the insulating tape and the second section of the insulating tape so that the bypass busbar stacked thereon can be aligned with each other. Figure 2 The middle bus bar e shown is welded. Another insulating tape pulling device 34 pulls the insulating tape parallel to the first section of insulating tape and the second section of insulating tape to a preset position and cuts it.

[0096] In this embodiment, the bypass busbar providing device further includes a first busbar providing device and a first busbar welding device 315;

[0097] The first bus bar providing device is configured to provide a first bus bar and place the first bus bar on the bypass bus bar on the bypass bus bar carrying device 31, the first bus bar welding device 315 welds the first bus bar and the bypass bus bar together, and the bypass bus bar providing device provides the bypass bus bar b welded with the insulating tape and the first bus bar, such as Figure 2 The bypass bus bar b with the first bus bar f1 is shown in FIG.

[0098] Preferably, if Figure 4 and Figure 6 As shown, the first busbar providing device includes a first carrying platform 312, a first bending mechanism 313 and a first transport device 314;

[0099] The first supporting platform 32 is used to support the bus bar to be bent. When the bus bar is located on the first supporting platform 312 and one end extends out of the first supporting platform 312, the first conveying device 314 presses the bus bar onto the first supporting platform 312, and the first bending mechanism 313 bends the part of the bus bar extending from the first supporting platform 312 to form the first bus bar into an L shape.

[0100] The first bending mechanism 313 includes a lifting component that can be lifted and lowered. When the lifting component is lifted, it pushes the bus bar extending from the first supporting platform 312 to bend the bus bar into an L-shaped first bus bar.

[0101] The first handling device 314 is configured to include a frame and an adsorption component that can move laterally and rise and fall relative to the frame. The adsorption component is configured to elastically press against the first bus bar to be adsorbed, and then adsorb the first bus bar and move.

[0102] The first busbar providing device further includes a first busbar pulling device 39, a first busbar pressing device 310 and a first busbar cutting device 311;

[0103] When the first busbar pulling device 39 pulls the busbar until the front end of the busbar extends out of the first carrier platform 312, the first busbar pressing device 310 presses the busbar pulled by the first busbar pulling device 39, and the first busbar cutting device 311 cuts the busbar, and the cut busbar is located on the first carrier platform 312. Then the first conveying device 314 presses the busbar on the first carrier platform 312 and the first bending mechanism 313 bends the portion of the busbar extending out of the first carrier platform 312.

[0104] The first busbar welding device 315 is arranged at the end position of the second end of the bypass busbar carrying device 31, and the first busbar welding device 315 includes a welding head that can be raised and lowered. When the bypass busbar pulling device 35 pulls the busbar from the bypass busbar coil 33 to a predetermined position, the welding head rises, and the first conveying device 314 absorbs the first busbar from the first carrying platform 312 and places the first busbar on the bypass busbar (at this time, the bypass busbar is the uncut busbar pulled by the bypass busbar pulling device 35) at a position corresponding to the welding head, and presses the first busbar, and the welding head welds the first busbar to the bypass busbar. Then, after the bypass busbar pulling device 35 pulls the busbar to continue moving a certain distance, the bypass busbar pressing device 36 presses the busbar, and the bypass busbar cutting device 37 cuts the pressed busbar to obtain a bypass busbar laid on the insulating tape, and then the bypass busbar and the insulating tape are hot-pressed together using the hot pressing device 38.

[0105] Those skilled in the art will appreciate that, after the bypass bus bar and the insulating tape are laid out and welded together, a welding device located above the bypass bus bar is used to weld the first bus bar to the bypass bus bar.

[0106] In this embodiment, since at least two parallel insulating tapes and bypass bus bars corresponding to the insulating tapes are laid on the bypass bus bar carrier device 31, in order to improve welding efficiency, preferably, the hot pressing device 38 is configured to simultaneously weld at least two parallel insulating tapes and the main bus on the bypass bus bar carrier device 31.

[0107] Specific as Figure 7 As shown, the hot pressing device 38 includes a strip-shaped mounting beam 381 , and at least two rows of hot pressing parts 3821 are arranged on the mounting beam 81 . The hot pressing parts 3821 in each row are arranged at intervals along the length direction of the mounting beam 381 .

[0108] More specifically, at least two hot pressing blocks 382 are arranged at intervals along the length direction on the mounting beam 381, and at least two hot pressing parts 3821 are arranged at intervals along the width direction of the mounting beam 381 on each hot pressing block (the figure shows that two hot pressing parts 3821 are arranged on each hot pressing block 382), thereby forming at least two rows of hot pressing parts 3821 along the length direction on the mounting beam 381, so that two parallel bypass bus bars can be welded at the same time.

[0109] Among them, the hot pressing device 38 also includes a driving mechanism for driving the mounting beam 38 to move and descend from one side of the bypass bus bar supporting device 31 toward the top of the bypass bus bar supporting device 31. When welding is required, the driving mechanism drives the mounting beam 38 to move to the top of the bypass bus bar supporting device 31 and then descend, so that each row of hot pressing parts 3821 corresponds to a bypass bus bar.

[0110] The specific process of providing the bypass busbar by using the bypass busbar providing device provided in this embodiment is described below.

[0111] First, the two insulating tape pulling devices 34 are controlled to pull parallel insulating tapes from the insulating tape roll 32 and toward the second end ( Figure 1The insulating tape pulling device 34 pulls the insulating tape to the first preset position, cuts the pulled insulating tape, and lays the cut first section of the insulating tape on the bypass busbar carrying device 31. Then the insulating tape pulling device 34 again pulls the insulating tape from the insulating tape roll 32 toward the second end of the bypass busbar carrying device 31 to the second preset position, and cuts the insulating tape to obtain the second section of the insulating tape. The insulating tape pulling device 34 pulls the cut second section of the insulating tape to the third preset position, and the insulating tape is laid on the bypass busbar carrying device 31; wherein the first section of the insulating tape and the second section of the insulating tape are arranged in a straight line along the length direction on the bypass busbar carrying device 31 with a gap. Another insulating tape pulling device 34 pulls the insulating tape to the fourth preset position, and cuts the insulating tape to obtain an insulating tape laid on the bypass busbar carrying device 31 and parallel to the first section of the insulating tape and the second section of the insulating tape.

[0112] The two bypass busbar pulling devices 35 are controlled to pull parallel busbars from the bypass busbar roll 33 and move them toward the first end ( Figure 1 Move to the right end of the

[0113] During the process of laying the insulating tape and the bypass bus bar, or before laying the insulating tape and the bypass bus bar, the first bus bar pulling device 39 is controlled to pull the bus bar until the front end of the bus bar extends out of the first supporting platform 312, the first bus bar clamping device 310 presses the bus bar pulled by the first bus bar pulling device 39, and the first bus bar cutting device 311 cuts the bus bar, and the cut bus bar is located on the first supporting platform 312.

[0114] The adsorption component of the first conveying device 314 is controlled to translate and descend to press on the busbar of the first loading platform 312 , and the first bending mechanism 313 rises to bend the portion of the busbar extending out of the first loading platform 312 to form an L-shaped first busbar.

[0115] When the bypass busbar traction device 35 pulls the busbar to a predetermined position, the welding head of the first busbar welding device 315 moves upward under the bypass busbar (the welding head is located near the second end of the bypass busbar supporting device 31), and the first conveying device 314 places the adsorbed first busbar at the position of the bypass busbar corresponding to the welding head and presses the first busbar, and the welding head welds the first busbar to the bypass busbar.

[0116] Then, the bypass busbar pulling device 35 pulls the busbar to continue moving. After pulling a certain length, the bypass busbar pressing device 36 presses the busbar, and the bypass busbar cutting device 37 cuts the pressed busbar. Two parallel bypass busbars obtained by cutting are laid on the first insulating tape and the second insulating tape, and the other is laid on another insulating tape parallel to the first insulating tape and the second insulating tape.

[0117] Then, the insulating tape hot pressing device 38 is controlled to hot press the insulating tape and the bypass busbar on the bypass busbar carrying device 31, so that the insulating tape and the bypass busbar are fixed together. Of course, it can be understood that the insulating tape and the bypass busbar can also be fixed together before the first busbar is welded to the bypass busbar.

[0118] In this embodiment, the transverse bus bar providing device includes a head end bus bar providing device, a tail end bus bar providing device and an intermediate bus bar providing device, the head end bus bar providing device is used to provide the head end bus bar c, the tail end bus bar providing device is used to provide the tail end bus bar d, and the intermediate bus bar providing device is used to provide the intermediate bus bar e;

[0119] The intermediate bus bar providing device 4 includes an intermediate bus bar carrying platform, an intermediate bus bar pulling device, an intermediate bus bar cutting device, a second bus bar providing device and a second bus bar welding device. At least two intermediate bus bar carrying platforms are provided. The intermediate bus bar pulling device pulls a bus bar toward each intermediate bus bar carrying platform and the bus bar is cut by the intermediate bus bar cutting device, so that each intermediate bus bar carrying platform carries a section of the intermediate bus bar.

[0120] The second bus bar providing device places the second bus bar on the intermediate bus bar of one of the intermediate bus bar carrying platforms, and the second bus bar welding device welds the second bus bar and the intermediate bus bar together;

[0121] The intermediate bus bar providing device provides at least two sections of intermediate bus bars to the welding carrier device 1 , wherein one section of the intermediate bus bar is welded with the second bus bar.

[0122] Specifically, refer to Figure 8 , Figure 8A plurality of intermediate bus bar carriers are shown, including a first intermediate bus bar carrier 41, a second intermediate bus bar carrier 42 and a third intermediate bus bar carrier 43. After the intermediate bus bar pulling device pulls the bus bar and lays it on the first intermediate bus bar carrier 41, the intermediate bus bar cutting device cuts the bus bar to form a first section of intermediate bus bar e1 located on the first intermediate bus bar carrier 41. Then the intermediate bus bar pulling device pulls the bus bar again to form a second section of intermediate bus bar e2 located on the second intermediate bus bar carrier 42 after cutting the bus bar. The intermediate bus bar pulling device continues to pull the bus bar for the next time and cuts it to form a second section of intermediate bus bar e3 located on the third intermediate bus bar carrier 43. Of course, the intermediate bus bar providing device is not limited to providing three sections of intermediate bus bars, and can also provide more sections of intermediate bus bars.

[0123] The second busbar providing device includes a second carrying platform 44, a second bending mechanism 45 and a second handling device 48;

[0124] When the busbar is located on the second carrier platform 44 and the front end extends out of the second carrier platform 44 (specifically, the busbar can be pulled until the front end of the busbar extends out of the second carrier platform 44, and then cut to obtain the busbar located on the second carrier platform 44), the second conveying device 48 presses the busbar onto the second carrier platform 44, the second bending mechanism 45 bends the part of the busbar extending from the second carrier platform 44 to form an L-shaped second busbar, and the second conveying device 48 absorbs the second busbar from the second carrier platform 44 and conveys the second busbar to the middle busbar of one of the middle busbar carrier platforms. In this embodiment, the second handling device 48 carries the second bus bar to the end of the second intermediate bus bar e2 extending from the second intermediate bus bar support platform 42. The second bus bar welding device 46 includes a welding head located at one end of the second intermediate bus bar support platform 42. The position of the welding head corresponds to the position where the second handling device 48 places the second bus bar. When the welding head of the second bus bar welding device 46 rises and the second handling device 48 presses down the second bus bar, the second bus bar welding device 46 cooperates with the second handling device 48 to weld the second bus bar to the second segment bus bar e2. Figure 2 It is shown that the second bus bar f2 is welded to the second segment of the intermediate bus bar e2.

[0125] In addition, in this embodiment, the intermediate bus bar providing device further includes an intermediate bus bar bending mechanism 47 , and the intermediate bus bar bending mechanism 47 bends a predetermined end portion of the intermediate bus bar on the intermediate bus bar supporting platform.

[0126] like Figure 8FIG. 4 shows that an intermediate bus bar bending mechanism 47 is provided at the end of the first intermediate bus bar support platform 41 for bending one end of the first intermediate bus bar e1 to form a bending portion e11 (eg, Figure 2 The end of the second intermediate bus bar support platform 43 is provided with an intermediate bus bar bending mechanism 47 for bending one end of the third segment intermediate bus bar e3.

[0127] The specific process of producing battery components using the battery component production equipment provided by the present invention is as follows:

[0128] The battery string is transported to the glass plate 2 to form a first battery string group a1 and a second battery string group a2 on the glass plate 2, and then the position of the glass plate 2 at the loading station is regularized;

[0129] The bypass busbar providing device provides a bypass busbar b having an insulating tape and a first busbar f1;

[0130] The head end bus bar providing device provides the head end bus bar c, the tail end bus bar providing device provides the tail end bus bar d, and the middle bus bar providing device provides the middle bus bar e;

[0131] The welding carrier device 1 includes a battery string carrier platform and a busbar carrier platform, wherein the head end busbar c, the tail end busbar d, and the middle busbar e are respectively placed on the busbar carrier platform of the welding carrier device 1, wherein the busbar carrier platform is configured to be liftable;

[0132] The battery string group handling device moves to the upper part of the bypass bus bar carrying device 31, grabs the bypass bus bar b, and then moves to the upper part of the glass plate 2, grabs the first battery string group a1 and the second battery string group a2 above the glass plate 2, places the bypass bus bar b, the first battery string group a1 and the second battery string group a2 on the battery string carrying platform of the welding carrying device 1, and controls the battery string carrying platform to move and / or rotate to regularize the position of each battery string;

[0133] Among them, reference Figure 2 , the head end bus bar c is stacked below the head end welding strip of the first battery string group a1, the middle bus bar e is stacked below the tail end welding strip of the first battery string group a1 and the head end welding strip of the second battery string group a2, and the tail end bus bar d is stacked below the tail end welding strip of the second battery string group a2; the bypass bus bar b extends along the length direction of the battery string, and one end of the bypass bus bar b is stacked on the head end bus bar c, and the other end is stacked on the tail end bus bar d;

[0134] The busbar carrier is controlled to rise, so that the head busbar c, the tail busbar d and the middle busbar e are in contact with the end welding strips of the first battery string group a1 and the second battery string group a2, and the welding device welds each busbar to the end welding strip of the battery string;

[0135] The glass plate 2 is transported from the loading station to the unloading station, and the battery string transport device transports the battery assembly formed by welding on the welding carrier device 1 to the glass plate 2.

[0136] According to another aspect of the present invention, there is also provided a battery assembly production method, the battery assembly production method comprising:

[0137] Providing a bypass bus bar b through a bypass bus bar providing device;

[0138] Providing a head end bus bar c, a tail end bus bar d and a middle bus bar e through a transverse bus bar providing device;

[0139] Provide a first battery string group a1 and a second battery string group a2 by a battery assembly providing device, wherein the first battery string group a1 and the second battery string group a2 each include at least two battery strings arranged side by side along a width direction of the battery string;

[0140] The provided bypass bus bar b, the head end bus bar c, the end tail end bus bar d, the middle bus bar e, the first battery string group a1 and the second battery string group a2 are placed on the welding carrier 1; wherein the first battery string group a1 and the second battery string group a2 are arranged on the welding carrier 1 along the length direction of the battery string; the head end bus bar c is stacked below the head end welding strip of the first battery string group a1, the middle bus bar e is stacked below the tail end welding strip of the first battery string group a1 and the head end welding strip of the second battery string group a2, and the tail end bus bar d is stacked below the tail end welding strip of the second battery string group a2; the bypass bus bar b extends along the length direction of the battery string, and one end of the bypass bus bar b is stacked on the head end bus bar c, and the other end is stacked on the tail end bus bar d;

[0141] Controlling the welding device to weld the welding strips of the first battery string group a1 and the second battery string group a2 carried on the welding carrying device 1 together with the head end bus bar c, the tail end bus bar d, the middle bus bar e and the bypass bus bar b to form a battery assembly;

[0142] Wherein, the control bypass busbar providing device provides a bypass busbar, including:

[0143] Laying an insulating tape on the bypass busbar carrier 31;

[0144] Laying the bypass busbar on the insulating tape of the bypass busbar carrying device 31;

[0145] The bypass bus bar and the insulating tape are welded together.

[0146] The step of laying the insulating tape on the bypass busbar supporting device 31 includes:

[0147] An insulating tape pulling device 34 is used to pull the insulating tape from the insulating tape roll 32 located at the first end of the bypass busbar carrier 31 toward the second end of the bypass busbar carrier 31, and the pulled insulating tape is cut, and the cut insulating tape is laid on the bypass busbar carrier 31;

[0148] Alternatively, laying the insulating tape on the bypass busbar supporting device 31 includes:

[0149] An insulating tape pulling device 34 is used to pull the insulating tape from the insulating tape roll 32 located at the first end of the bypass busbar carrying device 31 toward the second end of the bypass busbar carrying device 31 to a first preset position, and the pulled insulating tape is cut, and the cut first section of the insulating tape is laid on the bypass busbar carrying device 31;

[0150] The insulating tape pulling device 34 again pulls the insulating tape from the insulating tape roll 32 toward the second end of the bypass bus bar carrying device 31 and moves to a second preset position, and cuts the pulled insulating tape to obtain a second section of insulating tape. The insulating tape pulling device 34 continues to pull the cut second section of insulating tape and moves to a third preset position, and the insulating tape is laid on the bypass bus bar carrying device 31; wherein the first section of insulating tape and the second section of insulating tape are arranged on the bypass bus bar carrying device 31 with a gap in the length direction.

[0151] The step of laying the bypass busbar on the insulating tape of the bypass busbar carrying device comprises:

[0152] A bypass busbar pulling device 35 is used to pull the busbar from the bypass busbar roll 33 located at the second end of the bypass busbar carrying device 31 toward the first end of the bypass busbar carrying device 31, and the pulled busbar is cut, and the cut bypass busbar is laid on the insulating tape of the bypass busbar carrying device 31.

[0153] The device for controlling the bypass bus bar to provide the bypass bus bar further comprises:

[0154] The first bus bar is placed at a preset position of the bypass bus bar, and the first bus bar and the bypass bus bar are welded together.

[0155] Placing the first bus bar at a preset position of the bypass bus bar and welding the first bus bar and the bypass bus bar together comprises:

[0156] The first busbar pulling device 35 is used to pull the busbar until the front end of the busbar exceeds the first supporting platform 312;

[0157] Cutting the busbar pulled by the first busbar pulling device 39 at a preset position, the cut busbar is located on the first carrying platform 312 and the front end thereof extends out of the first carrying platform 312;

[0158] The first bending mechanism 313 is used to push the busbar extending from the first carrier 312 upward, so that the busbar on the first carrier 312 is bent to form the first busbar in an L shape; wherein when the first bending mechanism 313 bends the busbar, the first handling device 314 presses the busbar onto the first carrier 312;

[0159] When the bypass busbar pulling device 35 pulls the busbar to a predetermined position, the welding head of the first busbar welding device 315 is driven to rise, wherein the welding head is located at the end position of the second end of the bypass busbar supporting device 31, and the first conveying device 314 conveys the first busbar to and presses it to the position of the bypass busbar corresponding to the welding head, and the welding head welds the first busbar to the bypass busbar.

[0160] The transverse busbar providing device includes a head end busbar providing device, a tail end busbar providing device and a middle busbar providing device;

[0161] The method of providing the head end bus bar c, the tail end bus bar d and the middle bus bar e by the transverse bus bar providing device comprises:

[0162] The head end bus bar c is provided by the head end bus bar providing device, the tail end bus bar d is provided by the tail end bus bar providing device, and the middle bus bar e is provided by the middle bus bar providing device;

[0163] Wherein, providing the intermediate bus bar by the intermediate bus bar providing device comprises:

[0164] Pulling a busbar toward each of the intermediate busbar carriers and cutting it, so that each intermediate busbar carrier carries a section of the intermediate busbar, wherein at least two intermediate busbar carriers are provided;

[0165] The second bus bar is placed on the middle bus bar of one of the middle bus bar carriers by a second bus bar providing device, and the second bus bar is welded together with the middle bus bar by a second bus bar welding device.

[0166] The second busbar providing device includes a second carrying platform 44, a second bending mechanism 45 and a second handling device 48;

[0167] Placing the second bus bar on the middle bus bar of one of the middle bus bar carriers by the second bus bar providing device comprises:

[0168] When the bus bar is pulled until the front end of the bus bar extends out of the second carrier platform 44 , the bus bar is cut, and the cut bus bar is located on the second carrier platform 44 and the front end of the bus bar extends out of the second carrier platform 44 ;

[0169] The second conveying device 48 is controlled to press the bus bar onto the second supporting platform 44, the second bending mechanism 48 bends the part of the bus bar extending from the second supporting platform 44 to form an L-shaped second bus bar, and the second conveying device 48 absorbs the second bus bar from the second supporting platform 44 and conveys the second bus bar to the middle bus bar of one of the middle bus bar supporting platforms.

[0170] The providing the intermediate bus bar by the intermediate bus bar providing device further includes:

[0171] The predetermined end portion of the intermediate bus bar on the intermediate bus bar supporting platform is bent.

[0172] The battery assembly production method provided by the present invention can be implemented using the above-mentioned battery assembly production equipment, and its specific implementation process refers to the above description.

[0173] 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 assembly production equipment, characterized in that: The battery assembly production equipment includes: a welding support device, a battery string providing device, a transverse bus bar providing device, a bypass bus bar providing device and a welding device; The battery string group providing device provides a first battery string group and a second battery string group, wherein the first battery string group and the second battery string group each include at least two battery strings arranged side by side along a width direction of the battery string; The transverse busbar providing device is used to provide a head end busbar, a tail end busbar and a middle busbar; The bypass busbar providing device is used to provide a bypass busbar; The first battery string group, the second battery string group, the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar provided are placed on the welding carrier; wherein the first battery string group and the second battery string group are arranged on the welding carrier along the length direction of the battery string; the head end bus bar is stacked below the head end welding strip of the first battery string group, the middle bus bar is stacked below the tail end welding strip of the first battery string group and the head end welding strip of the second battery string group, and the tail end bus bar is stacked below the tail end welding strip of the second battery string group; the bypass bus bar extends along the length direction of the battery string, and one end of the bypass bus bar is stacked on the head end bus bar, and the other end is stacked on the tail end bus bar; The welding device welds the welding strips of the first battery string group and the second battery string group carried on the welding carrying device with the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar to form a battery assembly; Wherein, the bypass busbar providing device includes a bypass busbar carrying device, an insulating tape laying device, a bypass busbar laying device and a hot pressing device; the insulating tape laying device is configured to lay the insulating tape on the bypass busbar carrying device, the bypass busbar laying device is configured to lay the bypass busbar on the insulating tape of the bypass busbar carrying device, and the hot pressing device welds the insulating tape on the bypass busbar carrying device and the bypass busbar together; The insulating tape laying device comprises an insulating tape roll, an insulating tape pulling device, an insulating tape pressing device and an insulating tape cutting device, wherein the insulating tape roll is located at the first end of the bypass busbar carrying device, and when the insulating tape pulling device pulls the insulating tape from the insulating tape roll and moves to a preset position toward the second end of the bypass busbar carrying device, the insulating tape pressing device presses the insulating tape, and the insulating tape cutting device cuts the pressed insulating tape, and the cut insulating tape is laid on the bypass busbar carrying device; The bypass bus bar laying device includes a bypass bus bar roll, a bypass bus bar pulling device, a bypass bus bar pressing device and a bypass bus bar cutting device. The bypass bus bar roll is located at the second end of the bypass bus bar carrying device. When the bypass bus bar pulling device pulls the bus bar from the bypass bus bar roll and moves to a preset position toward the first end of the bypass bus bar carrying device, the bypass bus bar pressing device presses the bus bar, and the bypass bus bar cutting device cuts the pressed bus bar. The bypass bus bar obtained after cutting is laid on the insulating tape of the bypass bus bar carrying device. The transverse bus bar providing device includes a head end bus bar providing device, a tail end bus bar providing device and an intermediate bus bar providing device, wherein the head end bus bar providing device is used to provide the head end bus bar, the tail end bus bar providing device is used to provide the tail end bus bar, and the intermediate bus bar providing device is used to provide the intermediate bus bar; The intermediate bus bar providing device comprises an intermediate bus bar carrying platform, an intermediate bus bar pulling device, an intermediate bus bar cutting device, a second bus bar providing device and a second bus bar welding device, at least two intermediate bus bar carrying platforms are provided, the intermediate bus bar pulling device pulls a bus bar toward each intermediate bus bar carrying platform and the intermediate bus bar cutting device cuts the bus bar, so that each intermediate bus bar carrying platform carries a section of the intermediate bus bar; The second bus bar providing device places the second bus bar on the intermediate bus bar of one of the intermediate bus bar carrying platforms, and the second bus bar welding device welds the second bus bar and the intermediate bus bar together; The intermediate bus bar providing device provides at least two sections of intermediate bus bars to the welding supporting device, wherein one section of the intermediate bus bar is welded with the second bus bar.

2. The battery assembly production equipment according to claim 1, characterized in that: The bypass busbar providing device also includes a first busbar providing device and a first busbar welding device; The first bus bar providing device is configured to provide a first bus bar and place the first bus bar on the bypass bus bar of the bypass bus bar carrying device, the first bus bar welding device welds the first bus bar and the bypass bus bar together, and the bypass bus bar providing device provides the bypass bus bar welded with the insulating tape and the first bus bar.

3. The battery assembly production equipment according to claim 2, characterized in that: The first busbar providing device includes a first carrying platform, a first bending mechanism and a first handling device; The first carrier is used to carry the busbar to be bent. When the busbar is located on the first carrier and one end thereof extends out of the first carrier, the first handling device presses the busbar against the first carrier, and the first bending mechanism bends the portion of the busbar extending out of the first carrier to form the first busbar in an L shape. The first busbar welding device is arranged at the end position of the second end of the bypass busbar carrying device, and the first busbar welding device includes a welding head that can be raised and lowered. When the bypass busbar pulling device pulls the busbar from the bypass busbar coil to a predetermined position, the welding head rises, and the first conveying device absorbs the first busbar from the first carrying platform and places the first busbar at a position of the bypass busbar corresponding to the welding head, and presses the first busbar, and the welding head welds the first busbar to the bypass busbar.

4. The battery assembly production equipment according to claim 3, characterized in that: The first busbar providing device further includes a first busbar pulling device, a first busbar pressing device and a first busbar cutting device; When the first bus bar pulling device pulls the bus bar until the front end of the bus bar extends out of the first supporting platform, the first bus bar pressing device presses the bus bar pulled by the first bus bar pulling device, and the first bus bar cutting device cuts the bus bar, and the cut bus bar is located on the first supporting platform and the front end extends out of the first supporting platform.

5. The battery assembly production equipment according to claim 4, characterized in that: The second busbar providing device includes a second carrying platform, a second bending mechanism and a second handling device; When the busbar is located on the second carrying platform and the front end extends out of the second carrying platform, the second conveying device presses the busbar against the second carrying platform, the second bending mechanism bends the part of the busbar extending from the second carrying platform to form an L-shaped second busbar, and the second conveying device absorbs the second busbar from the second carrying platform and conveys the second busbar to the middle busbar of one of the middle busbar carrying platforms.

6. A method for producing a battery assembly, characterized in that: Using the battery assembly production equipment according to any one of claims 1 to 5, the battery assembly production method comprises: providing a bypass bus bar by means of a bypass bus bar providing device; Providing a head end bus bar, a tail end bus bar and a middle bus bar through a transverse bus bar providing device; Providing a first battery string group and a second battery string group by a battery assembly providing device, wherein the first battery string group and the second battery string group each include at least two battery strings arranged side by side along a width direction of the battery string; The provided bypass bus bar, the head end bus bar, the tail end bus bar, the middle bus bar, the first battery string group and the second battery string group are placed on a welding carrier; wherein the first battery string group and the second battery string group are arranged on the welding carrier along the length direction of the battery string; the head end bus bar is stacked below the head end welding strip of the first battery string group, the middle bus bar is stacked below the tail end welding strip of the first battery string group and the head end welding strip of the second battery string group, and the tail end bus bar is stacked below the tail end welding strip of the second battery string group; the bypass bus bar extends along the length direction of the battery string, and one end of the bypass bus bar is stacked on the head end bus bar, and the other end is stacked on the tail end bus bar; Controlling the welding device to weld the welding strips of the first battery string group and the second battery string group carried on the welding carrying device with the head end bus bar, the tail end bus bar, the middle bus bar and the bypass bus bar to form a battery assembly; Wherein, the control bypass busbar providing device provides a bypass busbar, including: Laying insulating tape on the bypass busbar carrier; Laying a bypass bus bar on the insulating tape of the bypass bus bar carrying device; The bypass bus bar and the insulating tape are welded together.

7. The battery assembly production method according to claim 6, characterized in that: The step of laying the insulating tape on the bypass busbar supporting device comprises: Using an insulating tape pulling device to pull the insulating tape from the insulating tape roll located at the first end of the bypass busbar carrying device toward the second end of the bypass busbar carrying device, and cutting the pulled insulating tape, and laying the cut insulating tape on the bypass busbar carrying device; Alternatively, laying the insulating tape on the bypass busbar supporting device comprises: Using an insulating tape pulling device to pull the insulating tape from the insulating tape roll located at the first end of the bypass busbar carrying device toward the second end of the bypass busbar carrying device to a first preset position, and cutting the pulled insulating tape, and laying the cut first section of the insulating tape on the bypass busbar carrying device; The insulating tape pulling device again pulls the insulating tape from the insulating tape roll toward the second end of the bypass busbar carrying device to a second preset position, and cuts the pulled insulating tape to obtain a second section of insulating tape. The insulating tape pulling device continues to pull the cut second section of insulating tape to a third preset position, and the insulating tape is laid on the bypass busbar carrying device; wherein the first section of insulating tape and the second section of insulating tape are arranged on the bypass busbar carrying device with a gap in the length direction.

8. The method for producing a battery assembly according to claim 6, characterized in that: The step of laying the bypass busbar on the insulating tape of the bypass busbar carrying device comprises: A bypass busbar pulling device is used to pull a busbar from a bypass busbar roll located at the second end of the bypass busbar carrying device toward the first end of the bypass busbar carrying device, and the pulled busbar is cut, and the cut bypass busbar is laid on the insulating tape of the bypass busbar carrying device.

9. The method for producing a battery assembly according to claim 8, characterized in that: The device for controlling the bypass bus bar to provide the bypass bus bar further comprises: The first bus bar is placed at a preset position of the bypass bus bar, and the first bus bar and the bypass bus bar are welded together.

10. The battery assembly production method according to claim 9, characterized in that: Placing the first bus bar at a preset position of the bypass bus bar and welding the first bus bar and the bypass bus bar together comprises: The first busbar pulling device is used to pull the busbar until the front end of the busbar exceeds the first bearing platform; Cutting the busbar pulled by the first busbar pulling device at a preset position, wherein the cut busbar is located on the first carrying platform and the front end thereof extends out of the first carrying platform; The first bending mechanism is used to push the busbar extending from the first carrier upward, so that the busbar on the first carrier is bent to form the first busbar in an L shape; wherein when the first bending mechanism bends the busbar, the first handling device presses the busbar onto the first carrier; When the bypass busbar pulling device pulls the busbar to a predetermined position, the welding head of the first busbar welding device is driven to rise, wherein the welding head is located at the end position of the second end of the bypass busbar supporting device, and the first transporting device transports the first busbar to and presses the position of the bypass busbar corresponding to the welding head, and the welding head welds the first busbar to the bypass busbar.

11. The method for producing a battery assembly according to claim 6, characterized in that: The transverse busbar providing device includes a head end busbar providing device, a tail end busbar providing device and a middle busbar providing device; The method of providing the head end bus bar, the tail end bus bar and the middle bus bar by the transverse bus bar providing device comprises: Providing a head-end bus bar through the head-end bus bar providing device, providing a tail-end bus bar through the tail-end bus bar providing device, and providing a middle bus bar through the middle bus bar providing device; Wherein, providing the intermediate bus bar by the intermediate bus bar providing device comprises: Pulling a busbar toward each of the intermediate busbar carriers and cutting it, so that each intermediate busbar carrier carries a section of the intermediate busbar, wherein at least two intermediate busbar carriers are provided; The second bus bar is placed on the middle bus bar of one of the middle bus bar carriers by a second bus bar providing device, and the second bus bar is welded together with the middle bus bar by a second bus bar welding device.

12. The method for producing a battery assembly according to claim 11, characterized in that: The second busbar providing device includes a second carrying platform, a second bending mechanism and a second handling device; Placing the second bus bar on the middle bus bar of one of the middle bus bar carriers by the second bus bar providing device comprises: When the bus bar is pulled until the front end of the bus bar extends out of the second carrier platform, the bus bar is cut, and the cut bus bar is located on the second carrier platform and the front end of the bus bar extends out of the second carrier platform; The second conveying device is controlled to press the busbar onto the second carrying platform, the second bending mechanism bends the part of the busbar extending from the second carrying platform to form an L-shaped second busbar, and the second conveying device absorbs the second busbar from the second carrying platform and conveys the second busbar to the middle busbar of one of the middle busbar carrying platforms.

Images