A high-power all-vanadium redox flow battery stack

Abstract

The utility model discloses a kind of high-power all-vanadium redox battery stack, including battery stack body, workbench and body fixing device, the top of workbench is placed battery stack body and is provided with guide slot, the body fixing device includes clamping motor, horizontal bidirectional screw rod, moving block and moving frame, two moving blocks are slidably installed in the inside of the both ends of guide slot, two moving frames are symmetrically arranged in the both sides of battery stack body and are respectively fixed in the top of two moving blocks, the horizontal bidirectional screw rod is respectively connected with two moving blocks by the two opposite threads of its surface with thread, the clamping motor is fixed in the side of workbench, and the output end of clamping motor is fixedly connected with horizontal bidirectional screw rod. The utility model utilizes the power provided by clamping motor to drive the clamping heat dissipation frame on two moving frames to clamp battery stack body, dismounting operation is very convenient, can improve the dismounting efficiency of all-vanadium redox battery stack, reduce the labor intensity of personnel.

Description

Technical Field

[0001] This utility model relates to a high-power all-vanadium redox flow battery stack, belonging to the field of fuel cell technology. Background Technology

[0002] A vanadium redox flow battery is a renewable energy battery used to store electrical energy. It uses two vanadium solutions of different concentrations as electrolytes and stores and releases electrical energy through a reaction between the anode and cathode.

[0003] Existing vanadium redox flow battery stacks use end plates on both sides and multiple bolts to connect and fix components such as bipolar plates. Due to the large number of bolts, assembly or disassembly is very troublesome, requiring workers to use tools to tighten multiple bolts. This not only increases the labor intensity of workers, but also takes a long time to disassemble and assemble, greatly reducing work efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-power vanadium redox flow battery stack, thereby improving the assembly and disassembly efficiency of the vanadium redox flow battery stack and reducing the labor intensity of workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-power vanadium redox flow battery stack includes a battery stack body, a workbench, and a body fixing device. The battery stack body is placed on the top of the workbench and has a guide groove. The body fixing device includes a clamping motor, a horizontal bidirectional threaded rod, two moving blocks, and two moving frames. The two moving blocks are slidably installed inside both ends of the guide groove. The two moving frames are symmetrically arranged on both sides of the battery stack body and are respectively fixed to the top of the two moving blocks. The horizontal bidirectional threaded rod is rotatably connected inside the guide groove and is threaded to the two moving blocks through two opposite threads on its surface. The clamping motor is fixed to one side of the workbench, and the output end of the clamping motor is fixedly connected to one end of the horizontal bidirectional threaded rod.

[0006] The aforementioned high-power vanadium redox flow battery stack has a clamping mechanism on the side of each movable frame opposite to the battery stack body. The clamping mechanism includes a vertical bidirectional screw with both ends rotatably connected to the movable frame and two clamping heat sinks. The vertical bidirectional screw is threaded to the two clamping heat sinks through two opposite threads on its surface. The upper end of the vertical bidirectional screw is connected to the screw drive mechanism.

[0007] In the aforementioned high-power vanadium redox flow battery stack, the clamping heat dissipation frame is composed of a horizontal plate and a vertical plate connected together. The horizontal plate is threadedly connected to a vertical bidirectional screw, and the vertical plate is attached to the battery stack body.

[0008] In the aforementioned high-power vanadium redox flow battery stack, a vertical limiting rod is fixedly connected to the side of the movable frame opposite to the battery stack body. The limiting rod slides through the limiting hole inside the horizontal plate of the clamping heat sink frame.

[0009] The aforementioned high-power vanadium redox flow battery stack includes a screw drive mechanism comprising a portal frame, a drive motor, a square transmission rod parallel to the horizontal bidirectional threaded rod, and two rotating shafts. The top beam of the support frame is parallel to the horizontal bidirectional threaded rod. The two side columns of the support frame are located outside the two movable frames and are fixedly connected to the worktable. The square transmission rod is located in the adjustment groove at the bottom of the beam of the support frame. Both ends of the square transmission rod are fixedly connected to the two rotating shafts, which are rotatably connected to the beam of the support frame. The drive motor is fixed to one side of the support frame, and the output end of the drive motor is fixedly connected to one end of a rotating shaft via a coupling. Each vertical bidirectional screw has a meshing driven bevel gear and a driving bevel gear at its top. The driven bevel gear is fixedly connected to the vertical bidirectional screw, and the driving bevel gear is rotatably connected to a support plate fixed to the top of the movable frame. The square transmission rod passes through the rotating groove on the support plate and slides through the square hole in the middle of the driving bevel gear.

[0010] In the aforementioned high-power vanadium redox flow battery stack, the clamping motor is fixed to one side of the support frame, and the output end of the clamping motor extends through the column of the support frame to the inside of the guide groove and is connected to the horizontal bidirectional threaded rod.

[0011] The aforementioned high-power vanadium redox flow battery stack has a circulating cooling device installed on the support frame. The circulating cooling device includes a water tank and a water pump. The water outlet pipe of the water tank is connected to the water inlet of the water pump. Each vertical plate of the clamping heat sink has a cooling water channel inside. The horizontal plates of the clamping heat sink have symmetrical water guide holes inside at both ends. The two ends of the cooling water channel are respectively connected to the water guide holes inside the two ends of the horizontal plate. The water guide hole at one end of the horizontal plate is connected to the drain pipe at the water outlet of the water pump through a water supply hose. The water guide hole at the other end of the horizontal plate is connected to the return water pipe of the water tank through a water supply hose.

[0012] In the aforementioned high-power vanadium redox flow battery stack, the internal cooling water channels of the vertical plate of the clamping heat sink are S-shaped.

[0013] This invention utilizes a clamping motor to drive two moving frames with clamping and heat dissipation brackets to clamp and fix the battery stack body. Compared with traditional high-power vanadium redox flow battery stacks, the disassembly and assembly operations are very convenient and quick, improving the efficiency of disassembly and assembly of vanadium redox flow battery stacks and reducing the labor intensity of workers. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the screw drive mechanism. Figure 3 This is a schematic diagram of the clamping mechanism; Figure 4 This is a schematic diagram of the installation of the movable block; Figure 5 for Figure 2 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the circulating cooling device. Figure 7 This is a schematic diagram of the cooling water channel structure.

[0016] The following are the labels in the diagram: 1. Workbench; 2. Battery stack body; 3. Support frame; 4. Extension plate; 5. Moving frame; 6. Guide groove; 7. Clamping motor; 8. Horizontal double-threaded rod; 9. Moving block; 10. Clamping heat sink; 11. Vertical double-threaded screw; 12. Limiting rod; 13. Driven bevel gear; 14. Driving bevel gear; 15. Support plate; 16. Rotating groove; 17. Rotating shaft; 18. Square transmission rod; 19. Adjusting groove; 20. Drive motor; 21. Water tank; 22. Water pump; 23. Drain pipe; 24. Return water pipe; 25. Outlet water pipe; 26. Water supply hose; 27. Water guide hole; 28. Cooling water channel; 29. ​​Fixing plate; 30. Fixing screw. Detailed Implementation

[0017] This invention addresses the shortcomings of existing technologies by providing a high-power all-vanadium redox flow battery stack.

[0018] Please see Figure 1-7 This utility model includes a vanadium redox flow battery stack body 2, a workbench 1, and a body fixing device. The top of the workbench 1 is provided with a guide groove 6. The body fixing device includes a clamping motor 7, a horizontal bidirectional threaded rod 8, two moving blocks 9, and two moving frames 5. The two moving blocks 9 are slidably installed inside the two ends of the guide groove 6. The battery stack body 2 is placed in the middle of the workbench 1. The two moving frames 5 are respectively fixed on the top of the two moving blocks 9. The two moving frames 5 are symmetrically arranged on both sides of the battery stack body 2. Each moving frame 5 has a clamping mechanism on the side opposite to the battery stack body 2.

[0019] The clamping mechanism includes a vertical bidirectional screw 11 with both ends rotatably connected to the movable frame 5. Two symmetrical clamping heat dissipation frames 10 are threaded onto the surface of the vertical bidirectional screw 11. Each clamping heat dissipation frame 10 is formed by connecting a horizontal plate and a vertical plate, with an L-shaped cross-section. The horizontal plate is threaded onto the vertical bidirectional screw 11, and the vertical plate rests against the battery stack body 2. A driven bevel gear 13 is fixedly connected to the top of the vertical bidirectional screw 11. A support plate 15 is fixedly connected to the top of the movable frame 5. A driving bevel gear 14 is rotatably connected to one side of the support plate 15. A rotating groove 16, coaxial with the driving bevel gear 14, is opened inside the support plate 15. A portal frame 3 is fixedly connected to the worktable 1. The top crossbeam of the support frame 3 is parallel to the guide groove 6. The two side columns of the support frame 3 are located outside the two movable frames 5 and fixedly connected to the worktable 1. An axial adjustment groove 19 is opened at the bottom of the crossbeam of the support frame 3. Rotary couplings 16 are rotatably connected to both ends of the adjustment groove 19. Two symmetrical rotating shafts 17 are fixedly connected to a square transmission rod 18. The square transmission rod 18 and the two rotating shafts 17 are parallel to the guide groove 6. The square transmission rod 18 passes through the rotating groove 16 and is rotatably connected to the support plate 15. The square transmission rod 18 passes through the square hole in the middle of the active bevel gear 14 and is slidably connected to the active bevel gear 14. The square transmission rod 18 can both drive the active bevel gear 14 to rotate and slide in the square hole in the middle of the active bevel gear 14. The surface of the active bevel gear 14 meshes with the surface of the driven bevel gear 13. A drive motor 20 is fixedly connected to one side of the support frame 3. The output end of the drive motor 20 rotates through the column of the support frame 3 and extends into the interior of the adjustment groove 19. The output end of the drive motor 20 is fixedly connected to one end of the rotating shaft 17 through a coupling. A circulating cooling device is provided on the support frame 3. The battery stack body 2 is an existing structure and will not be described in detail here.

[0020] After the drive motor 20 starts, it drives the square transmission rod 18 to rotate through the rotating shaft 17, and the square transmission rod 18 drives the active bevel gear 14 to rotate. The active bevel gear 14 drives the vertical double-direction screw 11 to rotate through the driven bevel gear 13, and the vertical double-direction screw 11 drives the two clamping heat sinks 10 to move relative to each other, so that the device can position and fix the battery stack body 2 of different heights, and improve the application range of the device to a certain extent.

[0021] A clamping motor 7 is fixedly connected to one side of the support frame 3. The clamping motor 7 is an existing structure and will not be described in detail here. The output end of the clamping motor 7 rotates through the column of the support frame 3 and extends into the interior of the guide groove 6. The interior of the guide groove 6 is rotatably connected to a horizontal bidirectional threaded rod 8 parallel to the square transmission rod 18. The surface of the horizontal bidirectional threaded rod 8 is connected to the internal thread of the moving block 9. The two moving blocks 9 are respectively set on two opposite threads on the surface of the horizontal bidirectional threaded rod 8. One end of the horizontal bidirectional threaded rod 8 is connected to the output end of the clamping motor 7. After the clamping motor 7 is started, it drives the horizontal bidirectional threaded rod 8 to rotate, so that the horizontal bidirectional threaded rod 8 drives the two moving blocks 9 to move relative to each other under the restriction of the guide groove 6. This causes the two moving frames 5 to drive the two clamping heat dissipation frames 10 to clamp and fix the battery stack body 2, making the fixing of the battery stack body 2 more convenient and allowing the staff to use the device more easily.

[0022] A vertical limiting rod 12 is fixedly connected to the side of the movable frame 5 opposite to the battery stack body 2. The limiting rod 12 slides through the limiting hole inside the horizontal plate of the clamping heat sink 10. The limiting rod 12 can restrict the movement direction of the clamping heat sink 10 and make the two clamping heat sink 10 move more smoothly relative to each other. This allows the device to clamp and fix the battery stack body 2 of different heights, and improves the range of use of the device, making it more convenient for workers to use the device.

[0023] The circulating cooling device includes a water tank 21, the bottom of which is fixedly connected to the top of a support frame 3. Extension plates 4 are fixedly connected to both sides of the support frame 3, and the tops of the extension plates 4 are fixedly connected to the bottom of the water tank 21. The water tank 21 can hold coolant. A water pump 22 is fixedly connected to the top of the support frame 3. An outlet pipe 25 is fixedly connected to the inlet end of the water pump 22. The end of the outlet pipe 25 furthest from the water pump 22 communicates with the interior of the water tank 21. A [missing information - likely a device or component] is fixedly connected to the outlet end of the water pump 22. The drain pipe 23 is a rigid pipe. Two flexible water hoses 26 are fixedly connected inside the drain pipe 23, extending to the outside of the drain pipe 23. The horizontal plate of the clamping heat sink 10 has symmetrical water guide holes 27 at both ends. The end of the water hose 26 away from the drain pipe 23 connects to the water guide hole 27 at one end of the horizontal plate. The vertical plate of the clamping heat sink 10 has S-shaped cooling water channels 28 inside. The two ends of the cooling water channels 28 connect to the horizontal plate at both ends. The water guide hole 27 at one end is connected, and the water tank 21 is provided with a return water pipe 24 extending to the outside of the water tank 21. The return water pipe 24 is also a rigid pipe, and a water supply hose 26 is also provided on the return water pipe 24. The water supply hose 26 on the return water pipe 24 is connected to the water guide hole 27 at the other end of the horizontal plate, so that the coolant can form a circulation. The water pump 22 can draw the coolant inside the water tank 21 through the outlet pipe 25, and discharge it into the water guide hole 27 and the interior of the cooling water channel 28 through the drain pipe 23 and the water supply hose 26 on the drain pipe 23. This allows the coolant to absorb the heat of the battery stack body 2, making the heat dissipation of the battery stack body 2 smoother and enabling the battery stack body 2 to operate more smoothly. The coolant inside the cooling water channel 28 enters the interior of the water tank 21 through another water guide hole 27 and the water supply hose 26 on the return water pipe 24, forming a circulation, and enabling the device to dissipate the heat of the battery stack body 2 more smoothly.

[0024] The operating steps for a high-power vanadium redox flow battery stack are as follows: S1. The staff places the battery stack body 2 between two movable frames 5 and sets a suitable pad at the bottom of the battery stack body 2 so that the distance between the center line of the side wall of the battery stack body 2 and the two clamping heat dissipation frames 10 on the vertical bidirectional screw 11 is equal. The drive motor 20 is started. The drive motor 20 drives the square transmission rod 18 to rotate through the rotating shaft 17. The square transmission rod 18 drives the active bevel gear 14 to rotate. The active bevel gear 14 drives the vertical bidirectional screw 11 to rotate through the driven bevel gear 13. The vertical bidirectional screw 11 drives the two clamping heat dissipation frames 10 to move relative to each other so that the two clamping heat dissipation frames 10 adapt to the height of the battery stack body 2, which facilitates the positioning and fixing of the battery stack body 2. S2. Start the clamping motor 7. The clamping motor 7 drives the horizontal bidirectional threaded rod 8 to rotate. Under the restriction of the guide groove 6, the horizontal bidirectional threaded rod 8 drives the two moving blocks 9 to move relative to each other. The two moving frames 5 drive the two clamping heat dissipation frames 10 to clamp and fix the battery stack body 2, making the fixing of the battery stack body 2 more convenient. At the same time, the assembly and disassembly of the battery stack body 2 are smoother through the moving frames 5 and the clamping heat dissipation frames 10. S3. Start the water pump 22 to draw coolant from the water tank 21 through the outlet pipe 25, and discharge the coolant into the water guide hole 27 and the cooling water channel 28 through the drain pipe 23 and the water supply hose 26 on the drain pipe 23. This allows the coolant to absorb the heat of the battery stack body 2, making the heat dissipation of the battery stack body 2 smoother and enabling the battery stack body 2 to operate more smoothly. The coolant inside the cooling water channel 28 enters the water tank 21 through the water guide hole 27 at the other end of the clamping heat sink 10 and the water supply hose 26 on the return pipe 24 to form a circulation, enabling the device to dissipate the heat of the battery stack body 2 more smoothly.

[0025] The advantages of this utility model are: This invention utilizes a clamping motor to drive a horizontal bidirectional threaded rod, which in turn drives two clamping heat sinks via two moving blocks to clamp and fix the battery stack body. Compared with traditional high-power vanadium redox flow battery stacks, the disassembly and assembly operations are much more convenient and faster, improving the efficiency of vanadium redox flow battery stack assembly and disassembly and assembly and reducing the labor intensity of workers.

[0026] This invention uses a water pump, drain pipe, and water supply hose to discharge coolant from the water tank into the water guide hole and cooling water channel, enabling the coolant to absorb heat from the battery stack body, thus facilitating heat dissipation and smoother operation of the battery stack body. The coolant inside the cooling water channel circulates through the water guide hole on the other side of the clamping heat sink, the water supply hose, and the water supply hose on the return pipe, returning to the interior of the water tank via the return pipe, further enhancing the device's ability to dissipate heat from the battery stack body.

[0027] This invention uses a vertical bidirectional screw to drive two clamping heat dissipation frames to move relative to each other, enabling the device to position and fix battery stack bodies of different heights, and thus expanding the range of applications of the device.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-power all-vanadium redox flow battery stack, characterized in that, The device includes a battery stack body (2), a workbench (1), and a body fixing device. The battery stack body (2) is placed on the top of the workbench (1) and a guide groove (6) is provided. The body fixing device includes a clamping motor (7), a horizontal bidirectional threaded rod (8), two moving blocks (9) and two moving frames (5). The two moving blocks (9) are slidably installed inside the two ends of the guide groove (6). The two moving frames (5) are symmetrically arranged on both sides of the battery stack body (2) and fixed on the top of the two moving blocks (9) respectively. The horizontal bidirectional threaded rod (8) is rotatably connected inside the guide groove (6) and is threaded to the two moving blocks (9) respectively through two opposite threads on its surface. The clamping motor (7) is fixed on one side of the workbench (1), and the output end of the clamping motor (7) is fixedly connected to one end of the horizontal bidirectional threaded rod (8).

2. The high-power all-vanadium redox flow battery stack according to claim 1, characterized in that, Each movable frame (5) is provided with a clamping mechanism on the side opposite to the battery stack body (2). The clamping mechanism includes a vertical bidirectional screw (11) with both ends rotatably connected to the movable frame (5) and two clamping heat sinks (10). The vertical bidirectional screw (11) is threaded to the two clamping heat sinks (10) through two opposite threads on its surface. The upper end of the vertical bidirectional screw (11) is connected to the screw drive mechanism.

3. A high-power all-vanadium redox flow battery stack according to claim 2, characterized in that, The clamping heat sink (10) is composed of a horizontal plate and a vertical plate connected together. The horizontal plate is threadedly connected to a vertical bidirectional screw (11), and the vertical plate is attached to the battery stack body (2).

4. A high-power all-vanadium redox flow battery stack according to claim 3, characterized in that, The movable frame (5) is fixedly connected to a vertical limiting rod (12) on the side opposite to the battery stack body (2). The limiting rod (12) slides through the limiting hole inside the horizontal plate of the clamping heat sink frame (10).

5. A high-power all-vanadium redox flow battery stack according to claim 4, characterized in that, The screw drive mechanism includes a portal frame (3), a drive motor (20), a square transmission rod (18) parallel to the horizontal bidirectional threaded rod (8), and two rotating shafts (17). The top crossbeam of the support frame (3) is parallel to the horizontal bidirectional threaded rod (8). The two side columns of the support frame (3) are located outside the two movable frames (5) and are fixedly connected to the worktable (1). The square transmission rod (18) is located in the adjustment groove (19) at the bottom of the crossbeam of the support frame (3). The two ends of the square transmission rod (18) are fixedly connected to the two rotating shafts (17) respectively. The two rotating shafts (17) are rotatably connected to the crossbeam of the support frame (3). The drive motor (20) is fixed on one side of the support frame (3), and the output end of the drive motor (20) is fixedly connected to one end of a rotating shaft (17) through a coupling; each vertical bidirectional screw (11) has a driven bevel gear (13) and a driving bevel gear (14) meshing with each other at its top. The driven bevel gear (13) is fixedly connected to the vertical bidirectional screw (11), and the driving bevel gear (14) is rotatably connected to the support plate (15) fixed on the top of the moving frame (5). The square transmission rod (18) passes through the rotating groove (16) on the support plate (15) and slides through the square hole in the middle of the driving bevel gear (14).

6. A high-power all-vanadium redox flow battery stack according to claim 5, characterized in that, The clamping motor (7) is fixed on one side of the support frame (3). The output end of the clamping motor (7) extends through the column of the support frame (3) to the inside of the guide groove (6) and is connected to the horizontal bidirectional threaded rod (8).

7. A high-power all-vanadium redox flow battery stack according to claim 6, characterized in that, The support frame (3) is equipped with a circulating cooling device, which includes a water tank (21) and a water pump (22). The water outlet pipe (25) of the water tank (21) is connected to the water inlet end of the water pump (22). Each clamping heat dissipation frame (10) has a cooling water channel (28) inside its vertical plate. The horizontal plate of the clamping heat dissipation frame (10) has symmetrical water guide holes (27) inside both ends. The two ends of the cooling water channel (28) are respectively connected to the water guide holes (27) inside both ends of the horizontal plate. The water guide hole (27) at one end of the horizontal plate is connected to the drain pipe (23) at the water outlet end of the water pump (22) through a water supply hose. The water guide hole (27) at the other end of the horizontal plate is connected to the return water pipe (24) of the water tank (21) through a water supply hose.

8. A high-power all-vanadium redox flow battery stack according to claim 7, characterized in that, The internal cooling water channel (28) of the vertical plate of the clamping heat sink (10) is S-shaped.

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