All-vanadium redox flow battery electric pile assembling and positioning device

Abstract

The utility model discloses an all-vanadium redox flow battery stack assembling and positioning device which comprises a positioning base used for being assembled with a positioning phase of a working table top device, and the positioning base is used for carrying out bolt positioning on an end plate on one side of a battery stack; the first positioning side plate is arranged on one side of the positioning base in the first direction, and the first positioning side plate at least upwards extends to the lower part of an end plate on the other side of the battery stack so as to be used for enabling the stack components to be attached to realize positioning in the first direction; and the second positioning side plate is arranged on one side of the positioning base along a second direction perpendicular to the first direction, and the second positioning side plate at least upwards extends to the lower part of an end plate on the other side of the battery stack so as to be used for realizing positioning in the second direction by enabling the stack components to be attached to each other. According to the utility model, the operation is simpler, the working time is effectively saved, the stacking efficiency is greatly improved, the production cost can be reduced, and meanwhile, the produced electric pile is better in sealing property and consistency and more excellent in performance.

Description

Technical Field

[0001] This utility model relates to the field of flow battery technology, and in particular to a positioning device for assembling a vanadium redox flow battery stack. Background Technology

[0002] The entire production process of a vanadium redox flow battery stack involves many processes, among which the stack assembly process involves stacking and securing stack components such as end plates, current collectors, carbon felt, bipolar plates, plate frames, and proton exchange membranes. During the stacking process, to ensure the stack's sealing and performance consistency, the stack materials need to be stacked as neatly as possible. In existing stack assembly processes, locating pins are typically used to ensure the stacking accuracy of the stack materials. However, using locating pins for material positioning presents the following problems: 1. When the locating hole accuracy is low, it is difficult to guarantee the positioning accuracy of the locating pins for the stack materials; 2. When the locating hole accuracy is high, inserting and removing the locating pins in actual use becomes very difficult, and even if the stacking accuracy is high, it may significantly affect the overall positioning accuracy of the stack during securing and subsequent processes, thus impacting the stack's performance. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a vanadium redox flow battery stack assembly and positioning device, which has the advantages of fast and convenient positioning.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] According to an embodiment of this utility model, a positioning device for assembling a vanadium redox flow battery stack is provided, comprising:

[0006] A positioning base for assembling with a positioning device on a workbench surface, the positioning base being used for pin positioning of an end plate on one side of a battery stack.

[0007] A first positioning side plate is disposed on one side of the positioning base along the first direction. A first clearance space, adapted to the end plate, is formed between the first positioning side plate and the positioning base. The first positioning side plate extends upwards at least to below the end plate on the other side of the battery stack to facilitate positioning of the battery stack components in the first direction.

[0008] A second positioning side plate is disposed on the positioning base along a second direction perpendicular to the first direction. A second clearance space is formed between the second positioning side plate and the positioning base to match the end plate. The second positioning side plate extends upward at least to below the end plate on the other side of the battery stack to enable positioning of the power stack components in the second direction.

[0009] To achieve the above technical solution, when assembling the battery stack, firstly, the positioning base is fixed on the work platform. Then, the end plate on one side of the battery stack is positioned and installed on the positioning base using pins. Subsequently, the first and second positioning side plates are installed on the positioning base. Due to the setting of the first and second clearance spaces, the first and second positioning side plates will not interfere with the end plate during installation. Then, the current collector, carbon felt, bipolar plate frame, bipolar plate, proton exchange membrane, and other stack components are stacked sequentially. During the stacking process, they are simultaneously brought into contact with the first and second positioning side plates, thus achieving rapid positioning of each stack component. After all stack components are assembled, the first and second positioning side plates are then... The positioning side plate is removed, and then the other end plate is installed. At the same time, the positioning holes around the end plate are used to accurately position it with the other end plate, and then it can be fastened to complete the stack assembly process. The vanadium redox flow battery stack assembly positioning device of this utility model uses two surfaces to achieve the positioning of the stack components. Positioning pins are only used to complete the auxiliary positioning when the end plate is placed at the end. In the stack assembly process, the stacking of stack components such as carbon felt, bipolar plate frame, bipolar plate, and proton exchange membrane is the core of the stack assembly. Compared with the existing stack assembly process, the operation is simpler, effectively saves working time, greatly improves the stack assembly efficiency, and can reduce production costs. At the same time, the produced stack has better sealing and consistency and superior performance.

[0010] In some exemplary embodiments, the positioning base is provided with a plurality of mounting holes for inserting locking components to assemble with the worktable surface.

[0011] The above technical solution enables the fixed installation of the positioning base and the worktable.

[0012] In some exemplary embodiments, the positioning base is further provided with a plurality of pin holes corresponding to the positioning holes on the end plate, the pin holes being used to insert pins to position the end plate.

[0013] The above technical solution achieves the positioning of the positioning base and the end plate.

[0014] In some exemplary embodiments, the first positioning side plate includes: a first connecting plate for assembly with the positioning base, and a first positioning plate for abutting against the fuel cell component, wherein the first connecting plate is inverted L-shaped, and a first clearance space is formed between the first connecting plate and the positioning base.

[0015] In some exemplary embodiments, the positioning base has a plurality of first fixing holes on its side along the first direction, and the first connecting plate has a plurality of first locking holes adapted to the first fixing holes. The first fixing holes and the first locking holes are used to insert fasteners to lock the first positioning side plate.

[0016] The above technical solution enables the installation and fixation of the first positioning side plate and the positioning base.

[0017] In some exemplary embodiments, the second positioning side plate includes: a second connecting plate for assembly with the positioning base, and a second positioning plate for abutting against the fuel cell component, the second connecting plate being inverted L-shaped, and a second clearance space being formed between the second connecting plate and the positioning base.

[0018] In some exemplary embodiments, the positioning base has a plurality of second fixing holes on its side along the second direction, and the second connecting plate has a plurality of second locking holes adapted to the second fixing holes. The second fixing holes and the second locking holes are used to insert fasteners to lock the second positioning side plate.

[0019] The above technical solution enables the installation and fixation of the second positioning side plate and the positioning base.

[0020] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0021] This utility model provides a vanadium redox flow battery stack assembly and positioning device. During battery stack assembly, a positioning base is first fixed to a working platform. Then, an end plate on one side of the battery stack is positioned and installed on the positioning base using pins. Subsequently, a first positioning side plate and a second positioning side plate are installed onto the positioning base. Due to the presence of first and second clearance spaces, the first and second positioning side plates do not interfere with the end plate during installation. The current collector, carbon felt, bipolar plate frame, bipolar plate, proton exchange membrane, and other stack components are then stacked sequentially. During stacking, these components simultaneously abut against the first and second positioning side plates, enabling rapid positioning of each stack component. After all stack components are assembled, the device is ready for assembly. The first and second positioning side plates are removed, and then the other end plate is installed. At the same time, the positioning holes around the end plate are used to accurately position it with another end plate, and then the stack assembly process is completed. The vanadium redox flow battery stack assembly positioning device of this utility model uses two surfaces to achieve the positioning of the stack components. Positioning pins are only used to complete the auxiliary positioning when the end plate is placed at the end. In the stack assembly process, the stacking of stack components such as carbon felt, bipolar plate frame, bipolar plate, and proton exchange membrane is the core of the stack assembly. Compared with the existing stack assembly process, the operation is simpler, effectively saves working time, greatly improves the stack assembly efficiency, and can reduce production costs. At the same time, the produced stack has better sealing and consistency and superior performance. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the assembly structure of the vanadium redox flow battery stack assembly positioning device and the battery stack in an embodiment of this utility model.

[0023] Figure 2 This is an exploded structural diagram of the vanadium redox flow battery stack assembly and positioning device and the battery stack in an embodiment of this utility model.

[0024] Figure 3 This is a schematic diagram of the vanadium redox flow battery stack assembly and positioning device in an embodiment of this utility model.

[0025] Figure 4 This is a schematic diagram of the positioning base in an embodiment of the present utility model.

[0026] The numbers and letters in the diagram represent the names of the corresponding components:

[0027] 10. Positioning base; 11. Mounting hole; 12. Pin hole; 13. First fixing hole; 14. Second fixing hole; 20. First positioning side plate; 21. First connecting plate; 22. First positioning plate; 23. First clearance space; 24. First locking hole; 30. Second positioning side plate; 31. Second connecting plate; 32. Second positioning plate; 33. Second clearance space; 34. Second locking hole; 40. End plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 4As shown, this utility model embodiment provides a vanadium redox flow battery stack assembly positioning device, including: a positioning base 10 for assembling with a positioning device on a workbench surface, the positioning base 10 being used for pin positioning of an end plate 40 on one side of the battery stack; a first positioning side plate 20 disposed on one side of the positioning base 10 along a first direction, the first positioning side plate 20 and the positioning base 10 forming a first clearance space 23 adapted to the end plate 40, and the first positioning side plate 20 extending upward at least to below the end plate 40 on the other side of the battery stack for positioning the power stack components against each other in the first direction; and a second positioning side plate 30 disposed on one side of the positioning base 10 along a second direction perpendicular to the first direction, the second positioning side plate 30 and the positioning base 10 forming a second clearance space 33 adapted to the end plate 40, and the second positioning side plate 30 extending upward at least to below the end plate 40 on the other side of the battery stack for positioning the power stack components against each other in the second direction.

[0030] Specifically, the positioning base 10 is provided with a plurality of mounting holes 11. The mounting holes 11 are used to insert locking members and assemble with the worktable surface, thereby realizing the fixed installation of the positioning base 10 and the worktable surface. The mounting holes 11 are located in the middle position near the edge of the positioning base 10. The mounting holes 11 can be threaded holes. The positioning base 10 is fixed by screwing screws upward into the bottom of the worktable and threading them into the mounting holes 11. In some embodiments, the mounting holes 11 can also be through holes. The positioning base 10 is fixed by providing positioning pins on the worktable surface and interfering with the mounting holes 11.

[0031] Meanwhile, the positioning base 10 is also provided with a number of pin holes 12 corresponding to the positioning holes on the end plate 40. The pin holes 12 are used to insert pins to position the end plate 40, thereby realizing the positioning of the positioning base 10 and the end plate 40. Usually, the positioning holes on the end plate 40 are set at the corners, so the pin holes 12 are also set at the four corners of the positioning base 10.

[0032] The first positioning side plate 20 includes: a first connecting plate 21 for assembly with the positioning base 10, and a first positioning plate 22 for contact with the battery stack components. The first connecting plate 21 and the first positioning plate 22 are integrally formed. The first connecting plate 21 is inverted L-shaped, and a first clearance space 23 is formed between the first connecting plate 21 and the positioning base 10. The first positioning plate 22 extends upward to below the end plate 40 on the other side of the battery stack. The positioning base 10 has a plurality of first fixing holes 13 on its side along the first direction. The first connecting plate 21 has a plurality of first locking holes 24 that are adapted to the first fixing holes 13. The first fixing holes 13 and the first locking holes 24 are used to insert fasteners to lock the first positioning side plate 20, thereby realizing the installation and fixation of the first positioning side plate 20 and the positioning base 10. Typically, the first fixing holes 13 are through holes, the first locking holes 24 are threaded holes, and the fasteners are screws, which pass through the first fixing holes 13 and are threadedly connected to the first locking holes 24 to fix the first positioning side plate 20.

[0033] The second positioning side plate 30 includes: a second connecting plate 31 for assembly with the positioning base 10, and a second positioning plate 32 for contact with the battery stack components. The second connecting plate 31 and the second positioning plate 32 are integrally formed. The second connecting plate 31 is inverted L-shaped, and a second clearance space 33 is formed between the second connecting plate 31 and the positioning base 10. The second positioning plate 32 extends upward to below the end plates 40 on the other two sides of the battery stack. The positioning base 10 has a plurality of second fixing holes 14 on its side along the second direction. The second connecting plate 31 has a plurality of second locking holes 34 that are adapted to the second fixing holes 14. The second fixing holes 14 and the second locking holes 34 are used to insert fasteners to lock the second positioning side plate 30, thereby realizing the installation and fixation of the second positioning side plate 30 and the positioning base 10. Similarly, the second fixing holes 14 are usually through holes, the second locking holes 34 are threaded holes, and the fasteners are screws, which pass through the second fixing holes 14 and are threadedly connected to the second locking holes 34 to realize the fixation of the second positioning side plate 30.

[0034] When assembling the battery stack, first fix the positioning base 10 on the work platform, then install the end plate 40 on one side of the battery stack onto the positioning base 10 using pins. Next, install the first positioning side plate 20 and the second positioning side plate 30 onto the positioning base 10. Due to the first clearance space 23 and the second clearance space 33, the first positioning side plate 20 and the second positioning side plate 30 will not interfere with the end plate 40 during installation. Then, stack components such as the current collector, carbon felt, bipolar plate frame, bipolar plate, and proton exchange membrane are stacked sequentially, simultaneously abutting against the first positioning side plate 20 and the second positioning side plate 30 during the stacking process, thus achieving rapid positioning of each stack component. After all stack components are assembled, the first positioning side plate 20 is then installed. Remove the second positioning side plate 30 and then install the other end plate 40. Simultaneously, use the positioning holes around the end plate 40 to accurately position it with the other end plate 40, and then fasten it to complete the stack assembly process. The vanadium redox flow battery stack assembly positioning device of this utility model uses two surfaces to achieve the positioning of the stack components. Only when the end plate 40 is placed at the end is a positioning pin used to complete the auxiliary positioning. In the stack assembly process, the stacking of stack components such as carbon felt, bipolar plate frame, bipolar plate, and proton exchange membrane is the core of the stack assembly. Compared with the existing stack assembly process, the operation is simpler, effectively saves working time, greatly improves the stack assembly efficiency, and can reduce production costs. At the same time, the produced stack has better sealing and consistency and superior performance.

[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A positioning device for assembling a vanadium redox flow battery stack, characterized in that, include: A positioning base for assembling with a positioning device on a workbench surface, the positioning base being used for pin positioning of an end plate on one side of a battery stack. A first positioning side plate is disposed on one side of the positioning base along the first direction. A first clearance space, adapted to the end plate, is formed between the first positioning side plate and the positioning base. The first positioning side plate extends upwards at least to below the end plate on the other side of the battery stack to facilitate positioning of the battery stack components in the first direction. A second positioning side plate is disposed on the positioning base along a second direction perpendicular to the first direction. A second clearance space is formed between the second positioning side plate and the positioning base to match the end plate. The second positioning side plate extends upward at least to below the end plate on the other side of the battery stack to enable positioning of the power stack components in the second direction.

2. The vanadium redox flow battery stack assembly and positioning device according to claim 1, characterized in that, The positioning base is provided with several mounting holes, which are used to insert locking components for assembly with the worktable surface.

3. The vanadium redox flow battery stack assembly and positioning device according to claim 1, characterized in that, The positioning base is also provided with several pin holes corresponding to the positioning holes on the end plate. The pin holes are used to insert pins to position the end plate.

4. The vanadium redox flow battery stack assembly and positioning device according to claim 1, characterized in that, The first positioning side plate includes: a first connecting plate for assembly with the positioning base, and a first positioning plate for contact with the fuel cell component. The first connecting plate is inverted L-shaped, and the first clearance space is formed between the first connecting plate and the positioning base.

5. The vanadium redox flow battery stack assembly and positioning device according to claim 4, characterized in that, The positioning base has a plurality of first fixing holes along the side of the first direction, and the first connecting plate has a plurality of first locking holes that are adapted to the first fixing holes. The first fixing holes and the first locking holes are used to insert fasteners to lock the first positioning side plate.

6. The vanadium redox flow battery stack assembly and positioning device according to claim 1, characterized in that, The second positioning side plate includes: a second connecting plate for assembly with the positioning base, and a second positioning plate for contact with the fuel cell component. The second connecting plate is inverted L-shaped, and a second clearance space is formed between the second connecting plate and the positioning base.

7. The vanadium redox flow battery stack assembly and positioning device according to claim 6, characterized in that, The positioning base is provided with a plurality of second fixing holes along the side of the second direction, and the second connecting plate is provided with a plurality of second locking holes that are adapted to the second fixing holes. The second fixing holes and the second locking holes are used to insert fasteners to lock the second positioning side plate.

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