Assembling system of vanadium redox flow electric pile

Abstract

The utility model relates to the technical field of vanadium redox flow galvanic piles, in particular to a vanadium redox flow galvanic pile assembling system which comprises a bottom plate, a pressing mechanism, an assembling frame and a controller, the pressing mechanism is composed of a first linear driving unit and supporting frames, the multiple supporting frames are perpendicularly arranged on the bottom plate and form a placement position of the assembly frame, and the first linear driving unit is arranged at the top of the supporting frames; a galvanic pile placing position is arranged in the assembly frame, a carrier plate mechanism is arranged at the bottom of the galvanic pile placing position, the carrier plate mechanism is composed of an elastic supporting assembly and a second linear driving unit, the second linear driving unit is arranged below the elastic supporting assembly, and the output end of the second linear driving unit is connected with the elastic supporting assembly; a pressure sensor is arranged in the electric pile placing position, the pressure sensor is electrically connected with a controller, and the controller is electrically connected with the first linear driving unit and the second linear driving unit. According to the utility model, the stability of the galvanic pile can be ensured, the galvanic pile is prevented from shifting, and the assembly precision of the galvanic pile is improved.

Description

Technical Field

[0001] This utility model relates to the field of vanadium liquid flow stack technology, and more specifically, to an assembly system for a vanadium liquid flow stack. Background Technology

[0002] A vanadium redox battery is a redox battery that uses vanadium as the active material in a circulating liquid state. The electrical energy of the vanadium battery is stored as chemical energy in a sulfuric acid electrolyte containing vanadium ions of different valence states. An external circulating pump forces the electrolyte into the battery stack, where it circulates within closed loops of different storage tanks and half-cells under mechanical power. A proton exchange membrane serves as the separator in the battery pack. The electrolyte solution flows parallel across the electrode surfaces, undergoing electrochemical reactions. Current is collected and conducted through dual electrode plates, thus achieving the interconversion of electrical and chemical energy, enabling the battery to charge and discharge.

[0003] During the assembly of vanadium redox flow battery stacks, a certain pressure needs to be applied before they are fixedly connected to ensure the compactness of the stack structure. Different stack structures require different pressures. If the applied pressure does not match the stack structure, the construction of the internal structure of the stack will deviate, resulting in reduced assembly accuracy and potentially causing the stack to malfunction. Utility Model Content

[0004] The purpose of this invention is to provide an assembly system for a vanadium redox flow (VRF) fuel cell. A first linear drive unit presses the VRF fuel cell together, while a carrier plate mechanism supports it and a support frame limits its position. This ensures the VRF fuel cell is stably placed within its designated mounting position, guaranteeing its stability and preventing displacement. Furthermore, a second linear drive unit adjusts the pressure based on the internal pressure of the mounting position, thereby improving the assembly accuracy of the VRF fuel cell and addressing the technical problems mentioned in the background section.

[0005] This utility model is achieved through the following technical solution: an assembly system for a vanadium liquid flow stack, comprising a base plate, a pressing mechanism, an assembly frame, and a controller;

[0006] The pressing mechanism is located above the base plate and consists of a first linear drive unit, a support frame, and a pressing head. Multiple support frames are provided and are vertically arranged on the base plate to form a frame placement position. The assembly frame is installed in the frame placement position. The first linear drive unit is located on the top of the support frame and its output end is connected to the pressing head to drive the pressing head to move along a first direction perpendicular to the upper surface of the base plate.

[0007] The assembly frame is provided with an electric stack placement position, and a carrier plate mechanism is provided at the bottom of the electric stack placement position. The carrier plate mechanism is composed of an elastic support component and a second linear drive unit. The second linear drive unit is located below the elastic support component, and its output end is connected to the elastic support component to drive the elastic support component to move along the first direction.

[0008] A pressure sensor is provided in the stack placement position. The signal output terminal of the pressure sensor is electrically connected to the controller. The signal output terminal of the controller is electrically connected to the first linear drive unit and the second linear drive unit.

[0009] According to a preferred embodiment, the support frame is provided in two sets. Each set of the support frame consists of two vertical plates extending along a first direction and a horizontal plate disposed on the top of the vertical plates and extending along a second direction. The first end of the vertical plate is connected to the top of the bottom plate, and the second end of the vertical plate is connected to one end of the horizontal plate in the same set of support frames. A longitudinal plate extending along a third direction is connected between the horizontal plates in the two sets of support frames. The area between the horizontal plate and the longitudinal plate in the two sets of support frames is greater than or equal to the area of ​​the top opening of the assembly frame. The second direction is the length direction of the bottom plate, and the third direction is the width direction of the bottom plate.

[0010] According to a preferred embodiment, the support frame further includes a movable plate disposed on the top of the horizontal plate, the movable plate being disposed parallel to the vertical plate, the first linear drive unit being disposed on the top of the movable plate, the horizontal plate having a sliding groove along a second direction, the length of the sliding groove being greater than or equal to the length of the top opening of the assembly frame, and a slider being disposed at the bottom of the movable plate, the slider being slidably engaged with the sliding groove.

[0011] According to a preferred embodiment, the movable plate and the first linear drive unit are each provided in two groups, and the movable plate and the first linear drive unit are arranged in a one-to-one correspondence in each group.

[0012] According to a preferred embodiment, the first linear drive unit is a pneumatic cylinder.

[0013] According to a preferred embodiment, the elastic support assembly is composed of a first support plate and a second support plate. The lower end face of the first support plate is connected to the output end of the second linear drive unit. The upper end face of the first support plate is provided with a plurality of first receiving grooves. An elastic element is provided in the first receiving groove. The bottom end of the elastic element is connected to the inner wall of the first receiving groove, and the top end of the elastic element is connected to the lower end face of the second support plate.

[0014] According to a preferred embodiment, the second linear drive unit consists of a third support plate, a piston, and a medium conveying pipe. The upper surface of the third support plate is provided with a plurality of second receiving grooves. The piston is slidably disposed in the second receiving grooves. The medium conveying pipe is integrally formed with the third support plate. The inlet end of the medium conveying pipe is connected to the medium supply unit, and the outlet end of the medium conveying pipe is connected to the interior of the second receiving groove.

[0015] According to a preferred embodiment, the medium supply unit is an external gas source, which is electrically connected to the controller.

[0016] The technical solution of the vanadium liquid flow stack assembly system provided by this utility model has at least the following advantages and beneficial effects: (1) This utility model uses a first linear drive unit to press the vanadium liquid flow stack, and at the same time uses a carrier plate mechanism to support the vanadium liquid flow stack and a support frame to limit the vanadium liquid flow stack, so that the vanadium liquid flow stack can be stably placed in the stack placement position, ensuring the stability of the vanadium liquid flow stack and avoiding the vanadium liquid flow stack from shifting. At the same time, the second linear drive unit adjusts the pressure according to the internal pressure of the stack placement position, thereby improving the assembly accuracy of the vanadium liquid flow stack; (2) By setting two sets of first linear drive units and moving assembly of the moving plate, good contact between the pressure head and the outer end cover of the stack can be achieved to meet the assembly requirements of different stack structures and improve the applicability. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the vanadium liquid flow stack assembly system provided in Embodiment 1 of this utility model;

[0018] Figure 2 An assembly diagram of the vanadium liquid flow stack assembly system provided in Embodiment 1 of this utility model;

[0019] Figure 3 A partial structural schematic diagram of the carrier plate mechanism provided in Embodiment 3 of this utility model;

[0020] Reference numerals: 100-base plate, 200-pressing mechanism, 210-first linear drive unit, 220-support frame, 221-vertical plate, 222-horizontal plate, 223-longitudinal plate, 224-moving plate, 225-slide groove, 230-pressing head, 300-assembly frame, 400-carrier plate mechanism, 410-elastic support member, 411-first support plate, 412-second support plate, 413-first receiving groove, 414-elastic member, 420-second linear drive unit, 421-third support plate, 422-piston, 423-medium conveying pipe, 424-second receiving groove, 500-fuel stack. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Example 1

[0023] See Figure 1 As shown in the figure, this application provides an assembly system for a vanadium liquid flow stack, including a base plate 100, a pressing mechanism 200, an assembly frame 300, and a controller.

[0024] The pressing mechanism 200 is located above the base plate 100 and consists of a first linear drive unit 210, a support frame 220, and a pressing head 230. Multiple support frames 220 are provided and are vertically arranged on the base plate 100 to form a frame placement position. The assembly frame 300 is installed in the frame placement position and can be moved out of the frame placement position along a first direction. The first linear drive unit 210 is located on the top of the support frame 220 and its output end is connected to the pressing head 230 to drive the pressing head 230 to move along a first direction perpendicular to the upper surface of the base plate 100.

[0025] See Figure 2 As shown, the assembly frame 300 has a fuel cell stack placement position for placing the fuel cell stack 500 structure to be assembled; the bottom of the fuel cell stack placement position has a carrier plate mechanism 400, which is composed of an elastic support component and a second linear drive unit 420; the second linear drive unit 420 is located below the elastic support component, and its output end is connected to the elastic support component to drive the elastic support component to move along the first direction.

[0026] A pressure sensor is provided in the fuel cell stack placement position. The pressure sensor is used to acquire the pressure signal in the fuel cell stack placement position. The signal output terminal of the pressure sensor is electrically connected to the controller to send the acquired pressure signal to the controller. The signal output terminal of the controller is electrically connected to the first linear drive unit 210 and the second linear drive unit 420 to send control signals to the first linear drive unit 210 and the second linear drive unit 420.

[0027] Specifically, the vanadium redox flow stack assembly system provided in this application uses a first linear drive unit 210 to press the vanadium redox flow stack, a carrier plate mechanism 400 to support the vanadium redox flow stack, and a support frame 220 to limit the vanadium redox flow stack, so that the vanadium redox flow stack can be stably placed in the stack placement position, ensuring the stability of the vanadium redox flow stack and preventing the vanadium redox flow stack from shifting. At the same time, the second linear drive unit 420 adjusts the pressure according to the internal pressure of the stack placement position, thereby improving the assembly accuracy of the vanadium redox flow stack.

[0028] Example 2

[0029] This embodiment, based on the technical solution provided in Embodiment 1, further explains the design of the pressing mechanism 200:

[0030] In one specific implementation, the support frame 220 is provided in two sets. Each set of support frames 220 consists of two vertical plates 221 extending in a first direction and a horizontal plate 222 disposed on the top of the vertical plates 221 and extending in a second direction. The vertical plates 221 are arranged in parallel. The first end of the vertical plate 221 is connected to the top of the base plate 100, and the second end of the vertical plate 221 is connected to one end of the horizontal plate 222 in the same set of support frames 220. A longitudinal plate 223 extending in a third direction is connected between the horizontal plates 222 in the two sets of support frames 220. The area between the horizontal plate 222 and the longitudinal plate 223 in the two sets of support frames 220 is greater than or equal to the area of ​​the top opening of the assembly frame 300, providing a sufficiently large entrance for the electrode plates, electrode frames, etc. to be assembled. Specifically, the second direction is the length direction of the base plate 100, and the third direction is the width direction of the base plate 100.

[0031] Specifically, the vanadium redox flow fuel cell assembly system provided in this embodiment can effectively fix the assembly frame 300 through two sets of support frames 220, and at the same time improve the stability of components such as the top first linear drive unit 210, preventing the assembly frame 300 or the first linear drive unit 210 from shifting and affecting the assembly accuracy of the fuel cell 500.

[0032] Furthermore, the support frame 220 also includes a movable plate 224 disposed on the top of the horizontal plate 222. The movable plate 224 is disposed parallel to the vertical plate 223. The first linear drive unit 210 is disposed on the top of the movable plate 224. The horizontal plate 222 is provided with a sliding groove 225 along the second direction. The length of the sliding groove 225 is greater than or equal to the length of the top opening of the assembly frame 300. The bottom of the movable plate 224 is provided with a slider. The slider slides in cooperation with the sliding groove 225. The movable plate 224 can carry the first linear drive unit 210 to move, which can achieve good contact between the pressure head 230 and the outer end cover of the fuel cell stack 500, so as to adapt to the assembly requirements of different fuel cell stack 500 structures and have stronger versatility.

[0033] Furthermore, two sets of movable plates 224 and first linear drive units 210 are provided, with each set of movable plates 224 and first linear drive units 210 corresponding to each other. Specifically, the two sets of movable plates 224 and first linear drive units 210 can effectively apply force to the components waiting to be assembled on the outer end cover of the fuel cell stack 500, so that the pressure head 230 can act on both sides of the outer end cover of the fuel cell stack 500 simultaneously, thereby ensuring the clamping effect and improving the compactness of the fuel cell stack 500 structure.

[0034] Furthermore, the first linear drive unit 210 is a pneumatic cylinder. Specifically, using a pneumatic cylinder as a power source makes the movement of the pressure head 230 more stable and reliable.

[0035] Example 3

[0036] This embodiment further illustrates the elastic support component based on the technical solution provided in any one of Embodiments 1 to 2:

[0037] As one specific implementation method, see Figure 3 As shown, the elastic support assembly is composed of a first support plate 411 and a second support plate 412. The lower end face of the first support plate 411 is connected to the output end of the second linear drive unit 420. The upper end face of the first support plate 411 is provided with a plurality of first receiving grooves 413. An elastic member 414 is provided in the first receiving groove 413. The bottom end of the elastic member 414 is connected to the inner wall of the first receiving groove 413, and the top end of the elastic member 414 is connected to the lower end face of the second support plate 412.

[0038] Specifically, the elastic support components can absorb the impact caused by external vibrations and other factors, thereby preventing damage to the components to be assembled. They also act as a buffer, preventing cracks or breaks in the electrode plates during assembly.

[0039] Example 4

[0040] This embodiment further explains the design of the second linear drive unit 420 based on the technical solution provided in Embodiment 3:

[0041] In one specific implementation, the second linear drive unit 420 is composed of a third support plate 421, a piston 422, and a medium conveying pipe 423. The upper end surface of the third support plate 421 is provided with a plurality of second receiving grooves 424. The piston 422 is slidably disposed in the second receiving grooves 424. The medium conveying pipe 423 is integrally formed with the third support plate 421. The inlet end of the medium conveying pipe 423 is connected to the medium supply unit, and the outlet end of the medium conveying pipe 423 is connected to the inside of the second receiving grooves 424.

[0042] Specifically, in this embodiment, the second linear drive unit 420 can adjust the pressure according to the internal pressure of the fuel cell placement position, thereby improving the assembly accuracy of the vanadium liquid flow fuel cell. On the other hand, it can also lift the assembled fuel cell 500 upwards, making it easier to remove the fuel cell 500 from the assembly frame 300.

[0043] Furthermore, the medium supply unit is an external air source, which is electrically connected to the controller.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An assembly system for a vanadium redox flow stack, characterized in that, It includes a base plate (100), a pressing mechanism (200), an assembly frame (300), and a controller; The pressing mechanism (200) is located above the base plate (100) and consists of a first linear drive unit (210), a support frame (220), and a pressing head (230). Multiple support frames (220) are provided and are vertically arranged on the base plate (100) to form a frame placement position. The assembly frame (300) is installed in the frame placement position. The first linear drive unit (210) is located on the top of the support frame (220) and its output end is connected to the pressing head (230) to drive the pressing head (230) to move along a first direction perpendicular to the upper surface of the base plate (100). The assembly frame (300) is provided with an electric stack placement position. The bottom of the electric stack placement position is provided with a carrier plate mechanism (400). The carrier plate mechanism (400) is composed of an elastic support component and a second linear drive unit (420). The second linear drive unit (420) is located below the elastic support component, and its output end is connected to the elastic support component to drive the elastic support component to move along the first direction. A pressure sensor is provided in the stack placement position. The signal output terminal of the pressure sensor is electrically connected to the controller. The signal output terminal of the controller is electrically connected to the first linear drive unit (210) and the second linear drive unit (420).

2. The vanadium redox flow stack assembly system as described in claim 1, characterized in that, The support frame (220) is provided in two sets. Each set of the support frame (220) consists of two vertical plates (221) extending in a first direction and a horizontal plate (222) set on the top of the vertical plate (221) and extending in a second direction. The first end of the vertical plate (221) is connected to the top of the base plate (100), and the second end of the vertical plate (221) is connected to one end of the horizontal plate (222) in the same set of support frames (220). The horizontal plates (222) in the two sets of support frames (220) are connected by a vertical plate (223) extending in a third direction. The area between the horizontal plate (222) and the vertical plate (223) in the two sets of support frames (220) is greater than or equal to the area of ​​the top opening of the assembled frame (300). The second direction is the length direction of the base plate (100), and the third direction is the width direction of the base plate (100).

3. The vanadium redox flow stack assembly system as described in claim 2, characterized in that, The support frame (220) also includes a movable plate (224) disposed on the top of the horizontal plate (222). The movable plate (224) is disposed parallel to the vertical plate (223). The first linear drive unit (210) is disposed on the top of the movable plate (224). The horizontal plate (222) is provided with a sliding groove (225) along the second direction. The length of the sliding groove (225) is greater than or equal to the length of the top opening of the assembly frame (300). The bottom of the movable plate (224) is provided with a slider, which slides in cooperation with the sliding groove (225).

4. The vanadium redox flow stack assembly system as described in claim 3, characterized in that, The movable plate (224) and the first linear drive unit (210) are each provided in two sets, and the movable plate (224) and the first linear drive unit (210) are arranged in a one-to-one correspondence in each set.

5. The vanadium redox flow stack assembly system as described in claim 4, characterized in that, The first linear drive unit (210) is a pneumatic cylinder.

6. The assembly system for a vanadium redox flow stack as described in any one of claims 1 to 5, characterized in that, The elastic support assembly is composed of a first support plate (411) and a second support plate (412). The lower end face of the first support plate (411) is connected to the output end of the second linear drive unit (420). The upper end face of the first support plate (411) is provided with a plurality of first receiving grooves (413). An elastic element (414) is provided in the first receiving groove (413). The bottom end of the elastic element (414) is connected to the inner wall of the first receiving groove (413), and the top end of the elastic element (414) is connected to the lower end face of the second support plate (412).

7. The vanadium redox flow stack assembly system as described in claim 6, characterized in that, The second linear drive unit (420) is composed of a third support plate (421), a piston (422) and a medium conveying pipe (423). The upper end surface of the third support plate (421) is provided with a plurality of second receiving grooves (424). The piston (422) is slidably disposed in the second receiving grooves (424). The medium conveying pipe (423) is integrally formed with the third support plate (421). The inlet end of the medium conveying pipe (423) is connected to the medium supply unit, and the outlet end of the medium conveying pipe (423) is connected to the inside of the second receiving groove (424).

8. The vanadium redox flow stack assembly system as described in claim 7, characterized in that, The medium supply unit is an external gas source, which is electrically connected to the controller.

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