Battery pack and battery pack single-side welding equipment

Abstract

The invention discloses a battery pack and battery pack single-face welding equipment, and relates to the technical field of battery pack single-face welding, the battery pack single-face welding equipment comprises a battery loading frame, battery bodies are arranged in the battery loading frame in an array mode, a pressing frame is arranged on the upper side of the battery loading frame, and electrode bus plates are arranged in the battery loading frame in an array mode; a nickel sheet is arranged on the upper side of the battery body; and the clamping mechanism comprises a bearing bottom plate and triangular clamping blocks, the battery loading frame is placed on the bearing bottom plate, and the left side and the right side of the bearing bottom plate are each movably provided with two sets of triangular clamping blocks. Based on an existing manual welding mode and a spot welding machine without an automatic moving function, the arranged equipment has the capacity of clamping and moving a battery pack, the size is small, the production cost is low, the equipment is more suitable for production of small battery packs, and due to the automatic moving capacity, the equipment can be separated from workers for automatic welding during welding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pack single-sided welding, in particular to a battery pack and a battery pack single-sided welding device. BACKGROUND

[0002] Battery pack single-sided welding is an important process in battery assembly, and is often carried out by using a single-sided lithium battery full-automatic spot welding machine and other devices, which is suitable for assembling various cylindrical batteries. The process feature is that the battery monomer can be clamped on the tooling frame for single-sided welding, and through specific cell opening and welding opening design, the positive and negative electrodes of the battery can be welded with the busbar on the same side. The existing welding of the battery pack is mainly achieved by using a spot welding machine to fixedly connect the battery and the nickel sheet. The existing automatic spot welding machine has the ability to automatically move the battery, but the automatic welding machine is generally used for welding large batteries and has a large floor area, high use cost and production cost, and is not suitable for the production and welding of small battery packs. The welding of the existing small battery pack is mainly achieved by using a spot welding machine without the ability to automatically move the battery. However, in the welding process, skilled workers are needed, and the welding efficiency depends on the skill of the workers. In the process of manual welding, virtual welding and other welding conditions may occur, and flash may occur during welding. In addition, the worker needs to indicate the welding position, which may cause damage to the worker's eyes in the case of long-time work. SUMMARY

[0003] The present application relates to the technical field of battery pack single-sided welding, in particular to a battery pack and a battery pack single-sided welding device.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a battery pack and a battery pack single-sided welding device, comprising a battery loading frame, wherein the battery loading frame is provided with battery bodies in an array, the upper side of the battery loading frame is provided with a pressing frame, the battery loading frame is provided with an electrode busbar in an array, and the upper side of the battery body is provided with a nickel sheet. A clamping mechanism is arranged, which comprises a receiving base plate and a triangular clamping block, the battery loading frame is placed on the receiving base plate, and two groups of triangular clamping blocks are movably arranged on the left and right sides of the receiving base plate. A displacement mechanism is arranged, which comprises a mounting frame and a mounting base plate, the receiving base plate is movably arranged on the mounting frame, and the mounting frame is movably arranged on the mounting base plate. A fixed leveling mechanism is arranged, which comprises a first mounting block and a suction cup, the four corners of the mounting frame are provided with first mounting blocks, and the first mounting blocks are movably provided with suction cups.

[0005] Preferably, the clamping mechanism further comprises mounting side plates, connecting horizontal plates, limiting holes, limiting rods, springs and clamping grooves, the left and right sides of the receiving base plate are fixedly provided with mounting side plates, the opposite sides of the mounting side plates are movably provided with connecting horizontal plates, the lower ends of the connecting horizontal plates are not in contact with the upper side of the receiving base plate, the front and rear ends of the connecting horizontal plates are fixedly provided with two groups of triangular clamping blocks, limiting holes are formed in the four groups of triangular clamping blocks, limiting rods are fixedly installed at the front and rear ends of the opposite sides of the mounting side plates, the limiting rods are movably inserted into the limiting holes, springs are sleeved on the four groups of limiting rods, one end of the spring is in contact with the triangular clamping block, and the left and right ends of the lower side of the battery loading frame are provided with two groups of clamping grooves.

[0006] Preferably, the clamping mechanism further comprises a pulling plate and a reinforcing side plate, the pulling plate is fixedly installed on the upper side of the connecting horizontal plate, the cross section of the pulling plate is L-shaped, the lower side of the pulling plate is not in contact with the upper side of the mounting side plate, and the left and right sides of the battery loading frame are fixedly provided with reinforcing side plates.

[0007] Preferably, the displacement mechanism further comprises a first fixed block, a first screw sleeve, a first roller, a limiting roller groove, a driving motor and a first screw rod, a first fixed block is fixedly installed at the center position of the lower side of the receiving base plate, a first screw sleeve is fixedly installed at the center position of the first fixed block, first rollers are rotatably installed at the front sides of the first fixed block, limiting roller grooves are formed in the front and rear opposite sides of the mounting frame, the first rollers roll in the limiting roller grooves, a driving motor is fixedly installed at one end of the mounting frame, a first screw rod is fixedly installed on the output shaft of the driving motor, the first screw rod is rotatably installed in the mounting frame, the first screw sleeve is threadedly sleeved on the first screw rod, and the first fixed block is not in contact with the inner side of the mounting frame.

[0008] Preferably, the displacement mechanism further comprises a mounting long rod, a second roller and a triangular support, mounting long rods are fixedly installed at the front and rear sides of the upper end of the mounting frame, the left and right ends of the mounting long rods exceed the left and right ends of the mounting frame, second rollers are arrayed and rotatably installed on the upper side of the mounting long rod, triangular supports are fixedly installed at the lower sides of the left and right ends of the mounting long rod, the triangular supports are fixedly installed on the mounting frame, the upper end of the second roller is higher than the upper end of the mounting frame, and the lower side of the receiving base plate is in contact with the second roller.

[0009] Preferably, the displacement mechanism further comprises a double-head motor, gears, third rollers, gear slots and limiting side frames, the double-head motor is fixedly installed on the front side of the mounting frame, gears are fixedly installed on the output shafts of the double-head motor, third rollers are arrayed and rotatably installed on the left and right sides of the mounting frame, two groups of gear slots are formed in the upper side of the mounting base, the gears are engaged with the gear slots, limiting side frames are fixedly installed on the left and right ends of the mounting base, and the third rollers roll in the limiting side frames.

[0010] Preferably, the fixed leveling mechanism further comprises second screw sleeves, second screw rods, rotating shafts, second mounting blocks and second fixing blocks, the first mounting blocks are fixedly installed on the front and rear sides of the limiting side frames, the second screw sleeves are fixedly installed on the first mounting blocks, the second screw sleeves are threadedly connected to the second screw rods, the rotating shafts are rotatably installed in the second screw rods, the second mounting blocks are fixedly installed on the lower sides of the rotating shafts, and the second fixing blocks are arranged on the lower sides of the second mounting blocks.

[0011] Preferably, the fixed leveling mechanism further comprises second fixing blocks, clamping round blocks and clamping round grooves, the second fixing blocks are fixedly installed on the lower sides of the second mounting blocks, the clamping round blocks are fixedly installed on the upper sides of the suction cups, the clamping round grooves are formed in the clamping round blocks, the shapes of the clamping round grooves are matched with the shapes of the second fixing blocks, and the second fixing blocks are clamped in the clamping round grooves.

[0012] Preferably, first placing grooves are arrayed in the battery loading frame, the battery bodies are inserted into the first placing grooves, second placing grooves are arrayed on the upper side of the battery loading frame, the upper end of the electrode bus plate is located in the second placing grooves, and the positions of the second placing grooves are opposite to those of the first placing grooves.

[0013] Preferably, limiting round rings are arrayed and fixedly installed on the lower side of the pressing frame, the positions of the limiting round rings are opposite to those of the battery bodies, the limiting round rings are inserted into the upper side of the battery bodies, third placing grooves are arrayed on the pressing frame, welding grooves are arrayed on the nickel sheets, and the positions of the welding grooves are opposite to those of the battery bodies and the upper end of the electrode bus plate.

[0014] Compared with the prior art, the present application has the following advantages: 1. The device is based on the existing manual welding method and the spot welder without automatic movement, has the ability to clamp and move the battery pack, has a small volume, low production cost and is more suitable for the production of small battery packs. Since the device has the ability to automatically move, it can be automatically welded without workers during welding, thereby making the production efficiency of the device more stable and greatly reducing the damage of welding flash to workers. 2、The battery pack designed in the application is based on the mode of the existing battery pack, the electrode busbar is arranged to make the battery pack can be single-sided welded, the upper end position of the electrode busbar is opposite to the position of the nickel piece upper welding groove, the welding process is more simple, the battery loading frame is designed to be more convenient and stable to be fixed on the clamping mechanism matched therewith, the convenience of the equipment in use is increased, the fixing and leveling mechanism is further arranged on the equipment to stabilize and level the whole equipment, so that the equipment can adapt to different processing conditions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure schematic diagram provided for the embodiment of the application is shown in the figure; Figure 2 The structure separation schematic diagram provided for the embodiment of the application is shown in the figure; Figure 3 The structure schematic diagram of the displacement mechanism provided for the embodiment of the application is shown in the figure; Figure 4 The structure schematic diagram of the clamping mechanism provided for the embodiment of the application is shown in the figure; Figure 5 The structure separation schematic diagram of the clamping mechanism provided for the embodiment of the application is shown in the figure; Figure 6 The structure schematic diagram of the fixing and leveling mechanism provided for the embodiment of the application is shown in the figure; Figure 7 The structure separation schematic diagram of the fixing and leveling mechanism provided for the embodiment of the application is shown in the figure; Figure 8 The structure separation schematic diagram of the battery loading frame provided for the embodiment of the application is shown in the figure; Figure 9 The structure section schematic diagram of the battery loading frame provided for the embodiment of the application is shown in the figure; Figure 10 The structure separation schematic diagram of the battery loading frame provided for the embodiment of the application is shown in the figure; Figure 5 The local enlarged schematic diagram of A in the figure is shown in the figure.

[0016] In the figure: 1, battery loading frame; 2, battery body; 3, pressing frame; 4, electrode busbar; 5, nickel sheet; 6, clamping mechanism; 601, receiving bottom plate; 602, mounting side plate; 603, connecting cross plate; 604, triangular clamping block; 605, limiting hole; 606, limiting rod; 607, spring; 608, pulling plate; 609, reinforcing side plate; 610, clamping groove; 7, displacement mechanism; 701, first fixed block; 702, first screw sleeve; 703, first roller; 704, mounting frame; 705, limiting roller groove; 706, driving motor; 707, first screw rod; 708, mounting long rod; 709, second roller; 710, triangular bracket; 711, double-head motor; 712, gear; 713, third roller; 714, mounting bottom plate; 715, gear slot; 716, limiting side frame; 8, fixed leveling mechanism; 801, first mounting block; 802, second screw sleeve; 803, second screw rod; 804, suction cup; 805, rotating shaft; 806, second mounting block; 807, second fixed block; 808, clamping round block; 809, clamping round groove; 9, first placing groove; 10, second placing groove; 11, limiting ring; 12, third placing groove; 13, welding groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-10 The present application provides a technical solution: a battery pack and a single-sided welding device for a battery pack, which comprises a battery loading frame 1, wherein battery bodies 2 are arranged in an array in the battery loading frame 1, and a pressing frame 3 is arranged on the upper side of the battery loading frame 1; electrode busbars 4 are arranged in an array in the battery loading frame 1, and nickel sheets 5 are arranged on the upper side of the battery bodies 2; The clamping mechanism 6 comprises a receiving bottom plate 601 and triangular clamping blocks 604, and the battery loading frame 1 is placed on the receiving bottom plate 601, and two groups of triangular clamping blocks 604 are movably arranged on the left and right sides of the receiving bottom plate 601; The displacement mechanism 7 comprises a mounting frame 704 and a mounting bottom plate 714, and the receiving bottom plate 601 is movably arranged on the mounting frame 704, and the mounting frame 704 is movably arranged on the mounting bottom plate 714; The fixed leveling mechanism 8 comprises a first mounting block 801 and a suction cup 804. The first mounting block 801 is arranged at the four corners of the mounting frame 704, and the suction cup 804 is movably arranged on the first mounting block 801. The device is used in the existing manual welding process of the battery pack. In the case of a spot welding machine and a worker, the existing small battery pack is welded by loading the battery body 2 between the battery loading frame 1 and the pressing frame 3, then placing the nickel sheet 5 on the electrode of the battery body 2, and then manually controlling the spot welding machine and moving the battery loading frame 1 to weld the battery body 2. During the welding process, the battery pack needs to be turned over. The battery pack in the device is used for single-sided welding. The electrodes are aligned through the electrode busbar 4 to achieve single-sided welding, so that the battery pack does not need to be turned over during welding, increasing the convenience of welding, eliminating the turning process, and increasing the accuracy of welding. In addition to the battery pack in the device, the device is used to eliminate the manual movement of the battery loading frame 1 during welding. This method not only improves the accuracy of welding and makes the product quality more stable, but also allows the worker to not look directly at the welding area during the welding process of the battery pack, which can greatly reduce the damage to the worker's eyes during production. The device is also provided with a fixed leveling mechanism 8 to fix and level the device, so that the device can adapt to different processing environments. In summary, the device has the functions of single-sided welding and automatic welding of the battery pack through the design of the battery loading frame 1 and the independent movement device of the remaining devices. Compared with the existing automatic welding equipment, the manufacturing and use cost is lower, the applicability is stronger, and it is more suitable for the existing worker welding mode.

[0019] Further, the clamping mechanism 6 further comprises a mounting side plate 602, a connecting horizontal plate 603, a limiting hole 605, a limiting rod 606, a spring 607 and a clamping groove 610. The mounting side plates 602 are fixedly installed on the left and right sides of the receiving bottom plate 601. The opposite sides of the mounting side plates 602 are movably provided with the connecting horizontal plates 603. The lower ends of the connecting horizontal plates 603 are not in contact with the upper side of the receiving bottom plate 601. The front and rear ends of the connecting horizontal plates 603 are fixedly installed with two groups of triangular clamping blocks 604. The limiting holes 605 are formed in the four groups of triangular clamping blocks 604. The limiting rods 606 are fixedly installed on the front and rear ends of the opposite sides of the mounting side plates 602. The limiting rods 606 are movably inserted into the limiting holes 605. The springs 607 are sleeved on the four groups of limiting rods 606. One end of the spring 607 abuts against the triangular clamping block 604. The left and right ends of the lower side of the battery loading frame 1 are provided with two groups of clamping grooves 610. The triangular clamping blocks 604 are clamped in the clamping grooves 610. The schematic diagram of the structure is Figure 5 、 Figure 8 and Figure 10When the spring 607 is in the state of not being compressed, the end of the limiting rod 606 does not exceed the upper end of the inclined surface of the triangular clamping block 604, which can avoid the blocking of the downward movement of the battery loading frame 1 by the limiting rod 606 during the retraction of the triangular clamping block 604. The structure cooperates with the clamping groove 610 on the battery loading frame 1 and the inclined surface on the triangular clamping block 604, so that the worker only needs to press the lower side of the battery loading frame 1 against the triangular clamping block 604 downward to complete the fixing of the battery loading frame 1 when fixing the battery loading frame 1, which makes the loading of the battery loading frame 1 very convenient; Further, the clamping mechanism 6 further comprises a pulling plate 608 and a reinforcing side plate 609. The pulling plate 608 is fixedly installed on the upper side of the connecting horizontal plate 603. The cross section of the pulling plate 608 is L-shaped. The lower side of the pulling plate 608 does not contact the upper side of the mounting side plate 602. The left and right sides of the battery loading frame 1 are fixedly installed with the reinforcing side plate 609. The schematic diagram of the structure is Figure 5 and Figure 8 The existence of the pulling plate 608 can make the worker more convenient to pull the connecting horizontal plate 603, so as to release the limiting of the triangular clamping block 604 on the battery loading frame 1. The reinforcing side plate 609 not only can reinforce the battery loading frame 1 itself, so that the battery loading frame 1 is not easy to deform, but also can make the sponge tape not need to be pasted on the battery body 2 during the assembly process before the upper shell is fixed. This is the existing technology. The existence of the reinforcing side plate 609 can increase the bonding area between the sponge tape and the battery pack, and can make the battery body 2 not need to be disassembled without removing the sponge tape. In addition, the reinforcing side plate 609 also has the function of making the worker convenient to disassemble the battery loading frame 1. After the nickel sheet 5 is welded, the worker needs to disassemble the battery loading frame 1 manually. The disassembly process is that the worker places the palm on the pulling plate 608. Because of the shape of the pulling plate 608, the worker can open the palm towards the triangular clamping block 604, so that the triangular clamping block 604 is no longer inserted in the clamping groove 610. Then the worker can support the reinforcing side plate 609 with fingers, so that the battery loading frame 1 is lifted up, thereby making the triangular clamping block 604 and the clamping groove 610 misaligned, so that the worker can more conveniently take out the battery loading frame 1, which increases the convenience of the worker to disassemble the battery loading frame 1. Combined with the convenient loading function realized in the above, the convenient disassembly of the battery loading frame 1 is realized; Further, the displacement mechanism 7 further comprises a first fixed block 701, a first screw sleeve 702, a first roller 703, a limiting roller groove 705, a driving motor 706 and a first screw rod 707, the first fixed block 701 is fixedly installed at the center position of the lower side of the bearing bottom plate 601, the first screw sleeve 702 is fixedly installed at the center position of the first fixed block 701, the first roller 703 is rotatably installed at the front side of the first fixed block 701, the limiting roller groove 705 is formed at the opposite sides of the front and back of the mounting frame 704, the first roller 703 rolls in the limiting roller groove 705, the driving motor 706 is fixedly installed at one end of the mounting frame 704, the first screw rod 707 is fixedly installed on the output shaft of the driving motor 706 and rotatably installed in the mounting frame 704, the first screw sleeve 702 is threadedly connected to the first screw rod 707, and the first fixed block 701 is not in contact with the inner side of the mounting frame 704. The schematic diagram of the structure is Figure 2 and Figure 3 The main function of the structure is that the battery loading frame 1 can move in the left and right directions, the first roller 703 can not only reduce the resistance of the bearing bottom plate 601 during movement, but also limit the self-rotation of the first fixed block 701, the first fixed block 701 is connected to the first screw rod 707 through the first screw sleeve 702, which can not only drive the bearing bottom plate 601 to move, but also avoid the horizontal rotation of the first roller 703, and the two can interact and limit each other to realize stable movement with low resistance. Further, the displacement mechanism 7 further comprises a first fixed block 701, a first screw sleeve 702, a first roller 703, a limiting roller groove 705, a driving motor 706 and a first screw rod 707, the first fixed block 701 is fixedly installed at the center position of the lower side of the bearing bottom plate 601, the first screw sleeve 702 is fixedly installed at the center position of the first fixed block 701, the first roller 703 is rotatably installed at the front side of the first fixed block 701, the limiting roller groove 705 is formed at the opposite sides of the front and back of the mounting frame 704, the first roller 703 rolls in the limiting roller groove 705, the driving motor 706 is fixedly installed at one end of the mounting frame 704, the first screw rod 707 is fixedly installed on the output shaft of the driving motor 706 and rotatably installed in the mounting frame 704, the first screw sleeve 702 is threadedly connected to the first screw rod 707, and the first fixed block 701 is not in contact with the inner side of the mounting frame 704. The schematic diagram of the structure is Figure 3 The structure can further reduce the resistance of the battery loading frame 1 during left and right movement. The reason for reducing the resistance of the battery loading frame 1 in the left and right directions is that the direction of the welding groove 13, Figure 1As shown, the long side of the welding groove 13 is parallel to the driving movement direction of the driving motor 706, and the welding groove 13 needs to be welded twice in the actual welding process, which indicates that the battery loading frame 1 needs to be moved and stopped frequently in the left-right direction, so low resistance is needed when moving left and right to increase the stability of the driving motor 706 when driving. Since the receiving bottom plate 601 will be out of sync with the mounting frame 704 when moving left and right, the extended mounting long rod 708 can provide support after the battery loading frame 1 moves to avoid the instability of the center of gravity after the receiving bottom plate 601 moves. The triangular support 710 can increase the stability of the mounting long rod 708 itself; Further, the displacement mechanism 7 further comprises a double-head motor 711, a gear 712, a third roller 713, a tooth groove 715 and a limiting side frame 716. The double-head motor 711 is fixedly installed on the front side of the mounting frame 704. The output shaft of the double-head motor 711 is fixedly installed with the gear 712. The left and right sides of the mounting frame 704 are arrayed with the third roller 713. The upper side of the mounting bottom plate 714 is provided with two groups of tooth grooves 715. The gear 712 is engaged with the tooth groove 715. The left and right ends of the mounting bottom plate 714 are fixedly installed with the limiting side frame 716. The third roller 713 rolls in the limiting side frame 716. The schematic diagram of the structure is Figure 3 and Figure 6 The main function of this structure is to drive the battery loading frame 1 to move forward and backward. This moving method is mainly to fix the double-head motor 711 on the mounting frame 704. The mounting frame 704 is provided with a control panel, which can centrally control the driving motor 706 and the double-head motor 711. There is no need to connect additional lines due to movement, which makes the logical cooperation between the device and the spot welding machine more convenient and increases the stability of the device when in use; Further, the fixed leveling mechanism 8 further comprises a second screw sleeve 802, a second screw rod 803, a rotating shaft 805, a second mounting block 806 and a second fixed block 807. The first mounting block 801 is fixedly installed on the front and rear sides of the limiting side frame 716. The first mounting block 801 is fixedly installed with the second screw sleeve 802. The second screw sleeve 802 is threadedly connected to the second screw rod 803. The second screw rod 803 is rotatably installed with the rotating shaft 805. The lower side of the rotating shaft 805 is fixedly installed with the second mounting block 806. The lower side of the second mounting block 806 is provided with the second fixed block 807. The schematic diagram of the structure is Figure 6 and Figure 7 This structure can adjust the position of the suction cup 804 in the vertical direction, so that the whole device can be leveled, mainly to adapt to different processing environments, such as some spot welding machines that come with a processing platform. The processing platform may be smaller than the device, and the height error between the platform and the desktop can be eliminated through this mechanism; Furthermore, the leveling mechanism 8 also includes a second fixing block 807, a locking circular block 808, and a locking circular groove 809. The second fixing block 807 is fixedly installed on the lower side of the second mounting block 806, and the locking circular block 808 is fixedly installed on the upper side of the suction cup 804. The locking circular block 808 has a locking circular groove 809, the shape of which matches the shape of the second fixing block 807, and the second fixing block 807 engages within the locking circular groove 809. A schematic diagram of this structure is shown below. Figure 7 ,by Figure 7 For example, the left side of the engaging groove 809 is wider than the right side, and the upper side of the second fixing block 807 is narrower than the lower side. In this way, the engaging block 808 can be engaged with the second fixing block 807 by its own elasticity and is not easy to detach. The purpose is to make the suction cup 804 replaceable. As a part that stabilizes the equipment, if the suction cup 804 fails, the equipment will become unstable. Therefore, the suction cup 804 can be easily replaced by a convenient disassembly and assembly method, which increases the functionality of the equipment during use. Furthermore, the battery loading frame 1 has a first placement slot 9 arrayed within it, and the battery body 2 is inserted into the first placement slot 9. A second placement slot 10 is arrayed on the upper side of the battery loading frame 1, and the upper end of the electrode busbar 4 is located within the second placement slot 10. The positions of the second placement slot 10 and the first placement slot 9 are opposite each other. A schematic diagram of this structure is shown below. Figure 9 This structure allows the second column of negative electrodes to be located on both sides of the first column of positive electrodes under the conduction of the electrode busbar 4, and then connected in series by welding the nickel sheets 5. This method makes the welding of the nickel sheets 5 more convenient, the battery loading frame 1 needs to be moved less, and increases the stability of the equipment during use. Furthermore, a limiting ring 11 is fixedly installed on the lower side of the pressing frame 3, with the position of the limiting ring 11 opposite to the position of the battery body 2. The limiting ring 11 is inserted into the upper side of the battery body 2. A third placement groove 12 is arrayed on the pressing frame 3, and a welding groove 13 is arrayed on the nickel sheet 5. The position of the welding groove 13 is opposite to the position of the battery body 2 and the upper end of the electrode busbar 4. A schematic diagram of this structure is shown below. Figure 8 The limiting ring 11 not only allows the pressing frame 3 to be stably mounted on the upper side of the battery loading frame 1, but also separates the battery body 2 so that the battery body 2 is more stable after installation. Some of the nickel sheet 5 will have protruding ends for connection with the circuit board. The third placement groove 12 is used to place the protruding parts of the nickel sheet 5.

[0020] Working principle: when the battery loading frame 1 is used, the battery loading frame 1 is placed on the upper side of the receiving bottom plate 601, then pressed, so that the lower side of the battery loading frame 1 is in contact with the triangular clamping block 604, under the guidance of the inclined surface of the triangular clamping block 604, the triangular clamping block 604 moves along the limiting rod 606 and compresses the spring 607, until the triangular clamping block 604 can be clamped in the clamping groove 610, that is, the fixing of the battery loading frame 1 is completed, when the fixing is released, the palm is placed on the pulling plate 608, the triangular clamping block 604 is no longer inserted in the clamping groove 610 by opening the palm, the fingers are supported on the reinforced side plate 609, so that the battery loading frame 1 is lifted, so that the triangular clamping block 604 and the clamping groove 610 are dislocated, that is, the disassembly of the battery loading frame 1 is completed.

[0021] When it is necessary to make the battery loading frame 1 move, the driving motor 706 is started, the output shaft drives the first screw rod 707 to rotate, so that the first fixed block 701 and the receiving bottom plate 601 are driven to move left and right through the thread action between the first screw rod 707 and the first screw sleeve 702, the double-head motor 711 is started, the gear 712 rotates, and the battery loading frame 1 is driven to move forward and backward through the meshing between the gear 712 and the tooth groove 715, so that the left and right and forward and backward movement can cooperate with the spot welding machine to realize automatic welding.

[0022] When the fixed leveling mechanism 8 is used, the second screw rod 803 is rotated, so that the suction cup 804 is driven to move up and down through the thread action between the second screw rod 803 and the second screw sleeve 802, when it is necessary to disassemble the suction cup 804, the suction cup 804 is transversely slid, so that the clamping round block 808 is separated from the second fixed block 807.

[0023] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus.

[0024] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A battery pack and a battery pack single-sided welding apparatus, comprising a battery loading frame (1), wherein battery bodies (2) are arranged in an array inside the battery loading frame (1), characterized in that: The upper side of the battery loading frame (1) is provided with a pressing frame (3), and the battery loading frame (1) is provided with an electrode bus plate (4) in an array; the upper side of the battery body (2) is provided with a nickel sheet (5); The clamping mechanism (6) comprises a receiving bottom plate (601) and a triangular clamping block (604), the battery loading frame (1) is placed on the receiving bottom plate (601), and two groups of triangular clamping blocks (604) are movably arranged on the left and right sides of the receiving bottom plate (601); The displacement mechanism (7) comprises a mounting frame (704) and a mounting bottom plate (714), the receiving bottom plate (601) is movably arranged on the mounting frame (704), and the mounting frame (704) is movably arranged on the mounting bottom plate (714); The fixed leveling mechanism (8) comprises a first mounting block (801) and a suction disc (804), the four corners of the mounting frame (704) are provided with the first mounting block (801), and the suction disc (804) is movably arranged on the first mounting block (801).

2. The battery pack and battery pack single-sided welding apparatus according to claim 1, characterized by: The clamping mechanism (6) further comprises a mounting side plate (602), a connecting horizontal plate (603), a limiting hole (605), a limiting rod (606), a spring (607) and a clamping groove (610), the mounting side plate (602) is fixedly installed on the left and right sides of the receiving bottom plate (601), the opposite sides of the mounting side plate (602) are movably provided with the connecting horizontal plate (603), the lower end of the connecting horizontal plate (603) is not in contact with the upper side of the receiving bottom plate (601), the front and rear ends of the connecting horizontal plate (603) are fixedly provided with two groups of triangular clamping blocks (604), the limiting hole (605) is formed in the four groups of triangular clamping blocks (604), the limiting rod (606) is fixedly installed on the front and rear ends of the opposite sides of the mounting side plate (602), the limiting rod (606) is movably inserted into the limiting hole (605), the spring (607) is sleeved on the four groups of limiting rods (606), one end of the spring (607) is in abutment with the triangular clamping block (604), and the left and right ends of the lower side of the battery loading frame (1) are provided with two groups of clamping grooves (610), and the triangular clamping block (604) is clamped in the clamping groove (610).

3. The battery pack and battery pack single-sided welding apparatus according to claim 2, characterized by: The clamping mechanism (6) further comprises a pulling plate (608) and a reinforcing side plate (609), the pulling plate (608) is fixedly installed on the upper side of the connecting horizontal plate (603), the cross section of the pulling plate (608) is L-shaped, the lower side of the pulling plate (608) is not in contact with the upper side of the mounting side plate (602), and the left and right sides of the battery loading frame (1) are fixedly provided with the reinforcing side plate (609).

4. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The displacement mechanism (7) further includes a first fixed block (701), a first threaded sleeve (702), a first roller (703), a limiting roller groove (705), a driving motor (706) and a first screw rod (707), the center position of the lower side of the bearing bottom plate (601) is fixedly installed with the first fixed block (701), the center position of the first fixed block (701) is fixedly installed with the first threaded sleeve (702), the front side of the first fixed block (701) is rotatably installed with the first roller (703) on both sides, the front and rear opposite sides in the mounting frame (704) are provided with limiting roller grooves (705), the first roller (703) rolls in the limiting roller groove (705), one end of the mounting frame (704) is fixedly installed with the driving motor (706), the output shaft of the driving motor (706) is fixedly installed with the first screw rod (707), the first screw rod (707) is rotatably installed in the mounting frame (704), the first threaded sleeve (702) is threaded on the first screw rod (707), and the first fixed block (701) is not in contact with the inner side of the mounting frame (704).

5. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The displacement mechanism (7) further includes a mounting long rod (708), a second roller (709) and a triangular support (710), the front and rear sides of the upper end of the mounting frame (704) are fixedly installed with the mounting long rod (708), the left and right ends of the mounting long rod (708) exceed the left and right ends of the mounting frame (704), the upper side of the mounting long rod (708) is rotatably installed with the second roller (709), the lower side of the left and right ends of the mounting long rod (708) is fixedly installed with the triangular support (710), the triangular support (710) is fixedly installed on the mounting frame (704), the upper end of the second roller (709) is higher than the upper end of the mounting frame (704), and the lower side of the bearing bottom plate (601) is in contact with the second roller (709).

6. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The displacement mechanism (7) further includes a double-head motor (711), a gear (712), a third roller (713), a gear slot (715) and a limiting side frame (716), the front side of the mounting frame (704) is fixedly installed with the double-head motor (711), the output shaft of the double-head motor (711) is fixedly installed with the gear (712), the left and right sides of the mounting frame (704) are rotatably installed with the third roller (713), the upper side of the mounting bottom plate (714) is provided with two groups of gear slots (715), the gear (712) is engaged with the gear slot (715), and the left and right ends of the mounting bottom plate (714) are fixedly installed with the limiting side frame (716). The third roller (713) rolls in the limiting side frame (716).

7. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The fixed leveling mechanism (8) further comprises a second screw sleeve (802), a second screw rod (803), a rotating shaft (805), a second mounting block (806) and a second fixed block (807), the first mounting block (801) is fixedly installed on the front and rear sides of the limiting side frame (716), the first mounting block (801) is fixedly installed with the second screw sleeve (802), the second screw sleeve (802) is sleeved on the second screw rod (803) through threads, the second screw rod (803) is rotatably installed with the rotating shaft (805), the lower side of the rotating shaft (805) is fixedly installed with the second mounting block (806), and the lower side of the second mounting block (806) is provided with the second fixed block (807).

8. The battery pack and battery pack single-sided welding apparatus according to claim 7, characterized by: The fixed leveling mechanism (8) further comprises a second fixed block (807), a clamping round block (808) and a clamping round groove (809), the lower side of the second mounting block (806) is fixedly installed with the second fixed block (807), the upper side of the suction cup (804) is fixedly installed with the clamping round block (808), the clamping round block (808) is provided with the clamping round groove (809), the shape of the clamping round groove (809) is matched with the shape of the second fixed block (807), and the second fixed block (807) is clamped in the clamping round groove (809).

9. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The battery loading frame (1) is arrayed with a first placing groove (9), the battery body (2) is inserted into the first placing groove (9), the upper side of the battery loading frame (1) is arrayed with a second placing groove (10), the upper end of the electrode bus plate (4) is located in the second placing groove (10), and the position of the second placing groove (10) is opposite to that of the first placing groove (9).

10. The battery pack and battery pack single-sided welding apparatus of claim 1, wherein: The lower side of the pressing frame (3) is arrayed with a limiting circular ring (11), the position of the limiting circular ring (11) is opposite to that of the battery body (2), the limiting circular ring (11) is inserted into the upper side of the battery body (2), the pressing frame (3) is arrayed with a third placing groove (12), the nickel sheet (5) is arrayed with a welding groove (13), and the position of the welding groove (13) is opposite to that of the battery body (2) and the upper end of the electrode bus plate (4).

Images