Energy storage battery module and manufacturing equipment thereof

Abstract

The invention discloses an energy storage battery module and manufacturing equipment thereof, the battery module comprises a frame body, a support plate is mounted at the bottom of the frame body, the frame body and the support plate form a battery box, and a battery pack is contained in the battery box; the manufacturing equipment is welding equipment, a laser welding head is arranged on one side of the first support, and the supporting plate and the frame body which abut against each other can be welded together through the laser welding head. A frame body is positioned from the inner side through a right prism in the equipment, accurate positioning is achieved through air pressure driving, the problem that the frame body deforms due to inconsistent force when a clamp is manually used for fixing is solved, the shape stability of the frame body is guaranteed, and then the quality consistency of subsequent welding is improved; the whole positioning, feeding and pressing process is automatically carried out, the frame body and the cover plate do not need to be fixed by manually adjusting the clamp for multiple times, the manual operation time is shortened, the complexity degree is reduced, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of battery module technology, and in particular to an energy storage battery module and its manufacturing equipment. Background Technology

[0002] Energy storage battery modules are the core components of energy storage systems. They are composed of multiple cells connected in series, parallel or mixed configurations, and integrate a battery management system (BMS), thermal management system, structural frame and electrical connectors to achieve efficient storage and release of electrical energy.

[0003] The production of energy storage battery modules requires the manufacture of suitable housings to house the battery packs, protecting the batteries and facilitating the use of the energy storage battery modules. The housing is manufactured by workers using clamps to fix a rectangular frame, then placing the bottom cover plate on the frame and positioning it using clamps, followed by laser welding. However, manually fixing the frame and cover plate with clamps results in inconsistent clamping force, leading to frame deformation and requiring multiple adjustments. This reduces work efficiency and results in inconsistent welding quality.

[0004] Therefore, this application proposes an energy storage battery module and its manufacturing equipment. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems by providing an energy storage battery module and its manufacturing equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An energy storage battery module includes a frame, a support plate is installed at the bottom of the frame, the frame and the support plate form a battery box, and a battery pack is contained inside the battery box.

[0008] Preferably, the frame is rectangular, and the support plate is welded to the frame using welding equipment.

[0009] This invention also discloses a manufacturing equipment for an energy storage battery module. This equipment is a welding device, which includes a first support, a second support mounted on the upper end of the first support, a third support fixed on one side of the second support, a hollow block fixedly connected to the first support, and four straight prisms on the hollow block that can slide on the first support and be positioned against the frame from the inside. A feeding mechanism is mounted on the third support that can feed a support plate onto the frame. After the feeding mechanism feeds the support plate onto the frame, it moves away from the frame. A downward-moving pressure plate is mounted on the second support that can tightly press the support plate and the frame fixed by the straight prisms together. A laser welding head is provided on one side of the first support that can weld the opposing support plate and frame together.

[0010] Preferably, four first piston cylinders are fixed on the hollow block, a first movable piston is slidably connected inside the first piston cylinder, a power rod is fixed on the first movable piston, an installation block is fixed at the end of the power rod, and the straight prism is fixed on the installation block.

[0011] Preferably, the feeding mechanism includes a movable plate sliding on a third support, four support feet fixed on the movable plate, a material frame for placing the support plate fixed on the four support feet, an electric push rod mounted on the third support, a drive rod fixed to the output end of the electric push rod, a fixed block fixed on the movable plate, the drive rod passing through the fixed block and slidably connected to it, an L-shaped push plate slidably connected to the movable plate and fixedly connected to the drive rod, and a first spring fixed to the L-shaped push plate and the fixed block.

[0012] Preferably, the third bracket is provided with two guide grooves, and a guide block is slidably connected in the guide groove, and the guide block is fixedly connected to the bottom of the moving plate.

[0013] Preferably, two limiting blocks are fixed on the movable plate, and the limiting blocks can abut against the second bracket.

[0014] Preferably, it further includes a limiting mechanism, which includes a notch at the end of the movable plate, the notch being able to engage with the outside of the frame and slide against it, and two guide strips for guiding the support plate are fixed on the movable plate.

[0015] Preferably, a second piston cylinder is mounted on the second bracket, a second movable piston is slidably connected inside the second piston cylinder, a second spring is fixed to the second movable piston and the second piston cylinder, a spring tube is fixed to the bottom of the second movable piston, and the pressure plate is fixed to the bottom of the spring tube.

[0016] Preferably, a positioning plate is fixed to the bottom of the third bracket, a third piston cylinder is fixed to the positioning plate, a third movable piston is slidably connected inside the third piston cylinder, a third spring is fixed to the third movable piston and the third piston cylinder, a driven rod is fixed to the third movable piston, a strip groove is provided through the third bracket and the movable plate, a driving block fixed to the bottom of the L-shaped pusher plate is slidably connected inside the strip groove, the driving block and the driven rod are arranged opposite to each other, the third piston cylinder is connected to the hollow block and the second piston cylinder through a first connecting pipe and a second connecting pipe respectively, a first solenoid valve is installed on the first connecting pipe, and a second solenoid valve is installed on the second connecting pipe.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows:

[0018] 1. Air is mainly delivered into the hollow block. The air is then distributed to the four first piston cylinders through the hollow block. The increased air in the first piston cylinders drives the first moving piston to move. The movement of the first moving piston drives the drive rod and the straight prism to move. Finally, the four straight prisms abut against the four corners of the frame, thereby positioning the frame internally without the need for manual intervention.

[0019] 2. The frame is positioned from the inside by straight prisms in the equipment, and precise positioning is achieved by using air pressure. This avoids the problem of frame deformation caused by inconsistent force when fixing with clamps manually, ensuring the stability of the frame shape and thus improving the consistency of subsequent welding quality.

[0020] 3. The L-shaped pusher plate is driven by the electric push rod, which pushes the L-shaped pusher plate to move and pushes the support plate on the moving plate to move. The support plate moves stably under the guidance of the support feet and guide strips, which can realize automatic feeding of the support plate.

[0021] 4. Since the pressure plate limits the support plate on the upper side and the guide bar guides the support plate, the electric push rod stops working and the support plate moves into place. This can stably limit the support plate and ensure that it is aligned with the frame without the need for manual adjustment.

[0022] 5. When the spring tube is in a compressed state, it works in conjunction with the air to drive the second moving piston, so that the pressure plate can press against the support plate on the upper side, ensuring that the support plate and the frame are tightly pressed together, thus guaranteeing the quality of subsequent welding.

[0023] 6. The output end of the electric push rod moves back, causing the plate and other components to move away from the frame, thus not hindering the laser welding head from welding the frame and the support plate.

[0024] In summary, this invention uses straight prisms in the equipment to position the frame from the inside, and utilizes air pressure to achieve precise positioning. This avoids the problem of frame deformation caused by inconsistent force when manually fixing with clamps, ensuring the stability of the frame shape and thus improving the consistency of subsequent welding quality. The entire positioning, feeding, and pressing process is automated, eliminating the need for manual adjustment of clamps to fix the frame and cover plate, reducing the time and complexity of manual operation, and significantly improving production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a manufacturing equipment for an energy storage battery module proposed in this invention;

[0026] Figure 2 This is a rear view of a manufacturing equipment for an energy storage battery module according to the present invention.

[0027] Figure 3 This is a schematic diagram of the structure of the first piston cylinder in a manufacturing equipment for an energy storage battery module proposed in this invention;

[0028] Figure 4 This is a schematic diagram of the disassembled third support in a manufacturing equipment for an energy storage battery module proposed in this invention;

[0029] Figure 5 This is a front view of a manufacturing equipment for an energy storage battery module proposed in this invention;

[0030] Figure 6 This is a cross-sectional view of the third piston cylinder in a manufacturing equipment for an energy storage battery module proposed in this invention.

[0031] Figure 7 This is a cross-sectional view of the second piston cylinder in a manufacturing equipment for an energy storage battery module proposed in this invention.

[0032] Figure 8 This is a schematic diagram of the structure of an energy storage battery module proposed in this invention.

[0033] In the diagram: 1 First support, 2 Second support, 3 Third support, 4 Laser welding head, 5 Hollow block, 6 Straight prism, 7 Power rod, 8 First piston cylinder, 9 First moving piston, 10 Second piston cylinder, 11 Spring tube, 12 Pressure plate, 13 Second connecting pipe, 14 Second solenoid valve, 15 Material frame, 16 Moving plate, 17 L-shaped push plate, 18 Fixed block, 19 Electric push rod, 20 Drive rod, 21 First spring, 22 Third piston cylinder, 23 Positioning plate, 24 First connecting pipe, 25 First solenoid valve, 26 Driven rod, 27 Drive block, 28 Second moving piston, 29 Second spring, 30 Third moving piston, 31 Third spring, 32 Guide groove, 33 Guide block, 34 Limiting block, 35 Guide strip, 36 Support foot, 37 Notch, 38 Frame, 39 Support plate, 40 Battery pack, 41 Strip groove. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Reference Figure 8 An energy storage battery module and its manufacturing equipment include a frame 38, a support plate 39 installed at the bottom of the frame 38, the frame 38 and the support plate 39 forming a battery box, and a battery pack 40 is contained inside the battery box. The frame 38 is rectangular, and the support plate 39 is welded to the frame 38 by welding equipment.

[0036] Reference Figures 1-7 The present invention also discloses a manufacturing equipment for an energy storage battery module. The manufacturing equipment is a welding equipment, which includes a first support 1, a second support 2 installed on the upper end of the first support 1, a third support 3 fixed on one side of the second support 2, a hollow block 5 fixedly connected to the first support 1, four straight prisms 6 that can slide on the first support 1 and be positioned on the frame 38 from the inside on the hollow block 5, four first piston cylinders 8 fixed on the hollow block 5, a first movable piston 9 slidably connected inside the first piston cylinder 8, a power rod 7 fixed on the first movable piston 9, an installation block fixed at the end of the power rod 7, and the straight prisms 6 fixed on the installation block.

[0037] The third support 3 is equipped with a feeding mechanism that can convey the support plate 39 to the frame 38. After the feeding mechanism conveys the support plate 39 to the frame 38, it will move away from the frame 38. The feeding mechanism includes a movable plate 16 that slides on the third support 3. The third support 3 is provided with two guide grooves 32. A guide block 33 is slidably connected in the guide grooves 32. The guide block 33 is fixedly connected to the bottom of the movable plate 16, so as to ensure the stable movement of the movable plate 16.

[0038] Two limiting blocks 34 are fixed on the movable plate 16. The limiting blocks 34 can abut against the second bracket 2, thus limiting the movable plate 16 and preventing it from moving further.

[0039] It also includes a limiting mechanism, which includes a notch 37 at the end of the movable plate 16. The notch 37 can be fastened to the outside of the frame 38 and slide against it. Two guide strips 35 are fixed on the movable plate 16 to guide the support plate 39, ensuring that the support plate 39 is stably pushed onto the frame 38.

[0040] Four support feet 36 are fixed on the movable plate 16, and a material frame 15 for placing the support plate 39 is fixed on the four support feet 36. An electric push rod 19 is installed on the third bracket 3. A drive rod 20 is fixed to the output end of the electric push rod 19. A fixing block 18 is fixed on the movable plate 16. The drive rod 20 passes through the fixing block 18 and is slidably connected to it. An L-shaped push plate 17 is slidably connected to the movable plate 16 and is fixedly connected to the drive rod 20. A first spring 21 is fixed on the L-shaped push plate 17 and the fixing block 18.

[0041] The second bracket 2 is equipped with a downward-moving pressure plate 12, and a second piston cylinder 10 is also installed on the second bracket 2. A second movable piston 28 is slidably connected inside the second piston cylinder 10. A second spring 29 is fixed to the second movable piston 28 and the second piston cylinder 10. A spring tube 11 is fixed to the bottom of the second movable piston 28, and the pressure plate 12 is fixed to the bottom of the spring tube 11. The spring tube 11 consists of two slidably connected sleeves, and a connecting spring is fixed to the two sleeves.

[0042] A positioning plate 23 is fixed to the bottom of the third support 3. A third piston cylinder 22 is fixed to the positioning plate 23. A third moving piston 30 is slidably connected inside the third piston cylinder 22. A third spring 31 is fixed to the third moving piston 30 and the third piston cylinder 22. A driven rod 26 is fixed to the third moving piston 30. A strip groove 41 is provided through the third support 3 and the moving plate 16. A drive block 27 fixed to the bottom of the L-shaped pusher plate 17 is slidably connected inside the strip groove 41. The drive block 27 and the driven rod 26 are arranged opposite to each other. The third piston cylinder 22 is connected to the hollow block 5 and the second piston cylinder 10 through the first connecting pipe 24 and the second connecting pipe 13, respectively. A first solenoid valve 25 is installed on the first connecting pipe 24 and a second solenoid valve 14 is installed on the second connecting pipe 13.

[0043] The pressure plate 12 can press the support plate 39 and the frame 38 fixed by the straight prism 6 tightly together. The first bracket 1 is provided with a laser welding head 4 on one side, which can weld the opposing support plate 39 and frame 38 together.

[0044] In use, the support plate 39 is stacked inside the material frame 15. Due to gravity, the support plate 39 at the bottom abuts against the upper end of the moving plate 16. The frame 38 is placed on the first bracket 1 with the corner facing the straight prism 6. Then, the electric push rod 19 is started.

[0045] The electric push rod 19 drives the drive rod 20 to move. Under the action of the first spring 21, the drive rod 20 drives the fixed block 18, the first spring 21, the L-shaped push plate 17 and the moving plate 16 to move synchronously. When the limit block 34 on the moving plate 16 abuts against the second bracket 2, the moving plate 16 cannot move. When the output end of the electric push rod 19 continues to move, the drive rod 20 and the fixed block 18 move relative to each other. At this time, the first spring 21 is stretched, that is, the L-shaped push plate 17 moves relative to the moving plate 16 and the material frame 15.

[0046] During the movement of the L-shaped pusher plate 17, the drive block 27 moves. The drive block 27 moves and abuts against the driven rod 26, driving the driven rod 26 and the third moving piston 30 to move. The movement of the third moving piston 30 compresses the internal air and delivers it to the hollow block 5 and the second piston cylinder 10 through the first connecting pipe 24 and the second connecting pipe 13, respectively. Since the second spring 29 dampens the movement of the second moving piston 28, the air is mainly delivered to the hollow block 5. The air is diverted through the hollow block 5 to the four first piston cylinders 8. The increased air in the first piston cylinders 8 drives the first moving piston 9 to move. The movement of the first moving piston 9 drives the power rod 7 and the straight prism 6 to move. Finally, the four straight prisms 6 abut against the four corners of the frame 38, thereby positioning the frame 38 internally without the need for manual positioning.

[0047] As mentioned above, since the straight prism 6 cannot move, feedback is sent to the first piston cylinder 8, that is, the pressure of the air supplied to the first piston cylinder 8 increases.

[0048] When the movable plate 16 cannot move, the notch 37 is fastened to the outside of the frame 38, and the upper end of the frame 38 is flush with the upper end of the movable plate 16. The L-shaped pusher plate 17 is pushed by the drive rod 20 driven by the electric push rod 19. The drive rod 20 pushes the L-shaped pusher plate 17 to move and pushes the support plate 39 located on the movable plate 16 to move. The support plate 39 moves stably under the guidance of the support foot 36 and the guide strip 35. Finally, the electric push rod 19 stops working.

[0049] During the movement of the L-shaped pusher plate 17, the drive block 27 continues to squeeze the driven rod 26 and move it. Air is delivered to the second piston cylinder 10 through the second connecting pipe 13. The pressure inside the second piston cylinder 10 increases, driving the second moving piston 28, the spring tube 11, and the pressure plate 12 to move downward. When the support plate 39 moves below the pressure plate 12, the pressure plate 12 abuts against the support plate 39. As the support plate 39 is pushed to continue moving, relative movement occurs between the pressure plate 12 and the support plate 39. At this time, the electric push rod 19 continues to work, and the spring tube 11 is compressed. Since the pressure plate 12 limits the support plate 39 on the upper side, the guide strip 35 guides the support plate 39, the electric push rod 19 stops working, and the support plate 39 moves into place. In this way, the support plate 39 can be stably limited and can be aligned with the frame 38 without manual adjustment.

[0050] When the spring tube 11 is in a compressed state, it works in conjunction with the air to drive the second moving piston 28, so that the pressure plate 12 can press against the support plate 39 on the upper side, ensuring that the support plate 39 and the frame 38 are tightly pressed together, thus guaranteeing the quality of subsequent welding.

[0051] Next, the first solenoid valve 25 and the second solenoid valve 14 close, completing the sealing of the first connecting pipe 25 and the second connecting pipe 13, so that air will not flow back.

[0052] Then, the output end of the electric push rod 19 moves back along with the moving plate 16 and moves away from the frame 38, so as not to obstruct the laser welding head 4 from welding the frame 38 and the support plate 39; the laser welding head 4 is driven by the robotic arm to move and complete the welding of the frame 38 and the support plate 39.

[0053] After welding is completed, the first solenoid valve 25 and the second solenoid valve 14 are opened, the electric push rod 19 is fully reset, all structures are reset, and the support plate 39 in the material frame 15 moves down again due to gravity and abuts against the moving plate 16. The above working process is repeated to complete the welding of the frame 38 and the support plate 39.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An energy storage battery module, comprising a frame (38), characterized in that, A support plate (39) is installed at the bottom of the frame (38), and the frame (38) and the support plate (39) form a battery box, which contains a battery pack (40).

2. The energy storage battery module according to claim 1, characterized in that, The frame (38) is rectangular, and the support plate (39) is welded to the frame (38) by welding equipment.

3. A manufacturing apparatus for an energy storage battery module according to claim 2, characterized in that, The preparation equipment is a welding device, which includes a first support (1), a second support (2) installed on the upper end of the first support (1), a third support (3) fixed on one side of the second support (2), a hollow block (5) fixedly connected to the first support (1), and four straight prisms (6) on the hollow block (5) that can slide on the first support (1) and be positioned on the frame (38) from the inside. A support plate capable of conveying a support plate to the frame (38) is installed on the third support (3). The feeding mechanism of 39) conveys the support plate (39) to the frame (38) and then moves away from the frame (38). The second bracket (2) is equipped with a pressure plate (12) that can move down. The pressure plate (12) can press the support plate (39) and the frame (38) fixed by the straight prism (6) tightly together. A laser welding head (4) is provided on one side of the first bracket (1). The laser welding head (4) can weld the opposing support plate (39) and frame (38) together.

4. The manufacturing equipment for an energy storage battery module according to claim 3, characterized in that, Four first piston cylinders (8) are fixed on the hollow block (5). A first movable piston (9) is slidably connected inside the first piston cylinder (8). A power rod (7) is fixed on the first movable piston (9). An installation block is fixed at the end of the power rod (7). The straight prism (6) is fixed on the installation block.

5. The manufacturing equipment for an energy storage battery module according to claim 4, characterized in that, The feeding mechanism includes a movable plate (16) that slides on a third support (3). Four support feet (36) are fixed on the movable plate (16). A material frame (15) for placing a support plate (39) is fixed on the four support feet (36). An electric push rod (19) is installed on the third support (3). A drive rod (20) is fixed at the output end of the electric push rod (19). A fixing block (18) is fixed on the movable plate (16). The drive rod (20) passes through the fixing block (18) and is slidably connected to it. An L-shaped push plate (17) that is fixedly connected to the drive rod (20) is slidably connected on the movable plate (16). A first spring (21) is fixed on the L-shaped push plate (17) and the fixing block (18).

6. The manufacturing equipment for an energy storage battery module according to claim 5, characterized in that, The third bracket (3) is provided with two guide grooves (32), and a guide block (33) is slidably connected in the guide groove (32). The guide block (33) is fixedly connected to the bottom of the moving plate (16).

7. The manufacturing equipment for an energy storage battery module according to claim 5, characterized in that, Two limiting blocks (34) are fixed on the movable plate (16), and the limiting blocks (34) can abut against the second bracket (2).

8. The manufacturing equipment for an energy storage battery module according to claim 5, characterized in that, It also includes a limiting mechanism, which includes a notch (37) provided at the end of the movable plate (16), the notch (37) being able to be fastened to the outside of the frame (38) and slide against it, and two guide strips (35) fixed on the movable plate (16) to guide the support plate (39).

9. The manufacturing equipment for an energy storage battery module according to claim 3, characterized in that, A second piston cylinder (10) is installed on the second bracket (2). A second movable piston (28) is slidably connected inside the second piston cylinder (10). A second spring (29) is fixed on the second movable piston (28) and the second piston cylinder (10). A spring tube (11) is fixed at the bottom of the second movable piston (28). The pressure plate (12) is fixed at the bottom of the spring tube (11).

10. The manufacturing equipment for an energy storage battery module according to claim 9, characterized in that, A positioning plate (23) is fixed to the bottom of the third bracket (3), and a third piston cylinder (22) is fixed on the positioning plate (23). A third moving piston (30) is slidably connected inside the third piston cylinder (22). A third spring (31) is fixed on the third moving piston (30) and the third piston cylinder (22). A driven rod (26) is fixed on the third moving piston (30). A strip groove (41) is provided through the third bracket (3) and the moving plate (16). A drive block (27) fixed to the bottom of an L-shaped pusher plate (17) is slidably connected inside the strip groove (41). The drive block (27) is arranged opposite to the driven rod (26). The third piston cylinder (22) is connected to the hollow block (5) and the second piston cylinder (10) through the first connecting pipe (24) and the second connecting pipe (13) respectively. A first solenoid valve (25) is installed on the first connecting pipe (24), and a second solenoid valve (14) is installed on the second connecting pipe (13).

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