Electrolytic cell stack structure and electrolytic cell stack

Abstract

The utility model discloses an electrolytic cell stack structure and an electrolytic cell stack, the stack structure comprises a bottom plate and a supporting assembly, the supporting assembly is arranged on the bottom plate, the supporting assembly comprises at least two supporting columns, each supporting column is provided with a mounting groove, the shape of the inner wall of each mounting groove is matched with the shape of at least part of the periphery of a cell stack unit, and the supporting columns are arranged on the bottom plate. The cell stack units are located between the supporting columns, and the peripheries of the cell stack units are located in the mounting grooves. According to the technical scheme, the installation efficiency of sequentially stacking the multiple cell stack units in the stacking structure is improved, the assembling time of the stacking structure is shortened, and the stability and reliability of the stacking structure are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic cells, in particular to an electrolytic cell stacking structure and an electrolytic cell stack. BACKGROUND

[0002] In the related art, the electrolytic cell stacking structure is usually fixedly installed through connecting pieces such as bolts and nuts, and the structure is complex. When disassembling, the nuts and bolts need to be removed and installed one by one, and the installation and disassembly efficiency is low. In addition, the bolts protrude from the stacking structure and are directly in contact with the water supply, which can easily cause corrosion of the bolts, thereby affecting the stability of the stacking structure. CONTENT OF THE UTILITY MODEL

[0003] The electrolytic cell stacking structure and the electrolytic cell stack provided by the embodiments of the present application can improve the installation efficiency of the plurality of cell stack units stacked in the stacking structure in sequence, shorten the assembly time of the stacking structure, and improve the stability and reliability of the stacking structure.

[0004] In a first aspect, the embodiments of the present application provide an electrolytic cell stacking structure, which comprises a bottom plate and a support assembly. The support assembly is arranged on the bottom plate, and the support assembly comprises at least two support columns. Each support column has an installation slot thereon, and the inner wall shape of the installation slot matches at least part of the outer peripheral shape of the electrolytic cell. The cell stack unit is located between the support columns, and the outer periphery of the cell stack unit is located in the installation slot.

[0005] The technical scheme of the present application provides the bottom plate and the support assembly in the stacking structure. The support assembly comprises at least two support columns, and each support column has an installation slot thereon. When the plurality of cell stack units are stacked in the stacking structure in sequence, the installation slot can provide a guiding effect for each cell stack unit, ensuring that the cell stack unit remains stable during the stacking process. The precise positioning of the cell stack unit is achieved through the installation slot, avoiding position deviation during installation, improving the stacking and assembly efficiency of the cell stack unit, and improving the stability and reliability of the stacking structure.

[0006] According to the foregoing embodiments of the first aspect of the present application, the stacking structure further comprises a top plate. The top plate is arranged correspondingly to the bottom plate, and the support column is connected between the bottom plate and the top plate.

[0007] According to the foregoing embodiments of the first aspect of the present application, the stacking structure further comprises a first elastic member and a second elastic member. The first elastic member is arranged between the top plate and the support assembly. The second elastic member is located in the installation slot and arranged between the cell stack unit and the bottom plate.

[0008] According to the foregoing embodiments of the first aspect of the present application, the top plate has a mounting protrusion on the side facing the support column, and the first elastic member can be connected with the mounting protrusion.

[0009] According to any one of the foregoing embodiments of the first aspect of the present application, the bottom plate is integrally formed with the support assembly.

[0010] According to any one of the foregoing embodiments of the first aspect of the present application, the support assembly further comprises a mounting portion connected with the support column, the mounting portion being provided with a first mounting hole, the top plate being provided with a second mounting hole, and the first mounting hole and the second mounting hole being capable of being matched and connected through a connecting piece.

[0011] According to the foregoing embodiment of the first aspect of the present application, the mounting portion comprises a mounting plate.

[0012] In a second aspect, the embodiments of the present application provide an electrolytic cell stack, which comprises at least two cell stack units and the electrolytic cell stacking structure according to any one of the foregoing embodiments of the first aspect of the present application, and the cell stack units are stacked in the stacking structure.

[0013] The electrolytic cell stack of the technical solution of the present application comprises at least two cell stack units, each of which is sequentially stacked in the stacking structure, and the stacking structure comprises a bottom plate and a support assembly, the support assembly comprising at least two support columns, each of which is provided with a mounting groove, when the plurality of cell stack units are stacked in the stacking structure, the mounting groove can provide a guiding action for each cell stack unit, ensuring that the cell stack unit remains stable during the stacking process, and the precise positioning of the cell stack unit is realized through the mounting groove, avoiding position deviation during installation, improving the assembly efficiency of the electrolytic cell stack, and also improving the stability and reliability of the stacking structure.

[0014] According to the foregoing embodiment of the second aspect of the present application, the outer periphery of each cell stack unit comprises at least one positioning structure, the shape of the positioning structure matches the shape of the inner wall of the mounting groove, and the positioning structure can move in the mounting groove, so that the cell stack unit can be sequentially stacked and installed in the stacking structure under the guidance of the mounting groove.

[0015] According to the foregoing embodiment of the second aspect of the present application, the mounting groove has an arc-shaped guiding surface, and the positioning structure has an arc-shaped guiding lug. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the electrolytic cell stacking structure of the present application;

[0017] Figure 2 It is an exploded structural schematic diagram of an embodiment of the electrolytic cell stacking structure of the present application;

[0018] Figure 3 It is a structural schematic diagram of the bottom plate and the support assembly in an embodiment of the electrolytic cell stacking structure of the present application;

[0019] Figure 4Figure 6 is a structural schematic diagram of a support column in an embodiment of the electrolytic cell stack structure of the present application.

[0020] Figure 5 Figure 7 is a structural schematic diagram of a top plate in an embodiment of the electrolytic cell stack structure of the present application.

[0021] Figure 6 Figure 8 is a structural schematic diagram of the overall structure of another embodiment of the electrolytic cell stack structure of the present application.

[0022] Figure 7 Figure 9 is a structural schematic diagram of a support column in another embodiment of the electrolytic cell stack structure of the present application.

[0023] Figure 8 Figure 10 is a structural schematic diagram of a top plate in another embodiment of the electrolytic cell stack structure of the present application.

[0024] Figure 9 Figure 11 is a structural schematic diagram of a battery stack unit in an embodiment of the electrolytic cell stack of the present application.

[0025] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Bottom plate - 100, support assembly - 200, top plate - 300, first elastic member - 400, battery stack unit - 500, second elastic member - 600.

[0027] Support column - 210, mounting portion - 220, mounting protrusion - 310, second mounting hole - 320, mounting end - 330, positioning structure - 510.

[0028] Mounting groove - 211, first mounting hole - 221, guide lug - 511.

[0029] Guide surface - 2111. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0033] The electrolytic cell stacking structure and the electrolytic cell stack provided by the embodiments of the present application can facilitate the installation efficiency of the plurality of electrolytic cells stacked in the stacking structure in sequence, shorten the assembly time of the stacking structure, and improve the stability and reliability of the stacking structure.

[0034] As shown in Figures 1-2 The electrolytic cell stacking structure provided by the embodiments of the present application includes a bottom plate 100 and a support assembly 200, the support assembly 200 is arranged on the bottom plate 100, and the support assembly 200 includes at least two support columns 210, as shown in Figures 3-4 Each support column 210 is provided with a mounting groove 211, the inner wall shape of the mounting groove 211 matches the at least partial outer peripheral shape of the cell stack unit 500, the cell stack unit 500 is located between the support columns 210, and the outer periphery of the cell stack unit 500 is located in the mounting groove 211, so that the cell stack unit 500 can be stacked and installed in the stacking structure in sequence under the guidance of the mounting groove 211.

[0035] In the related art, the electrolytic cell stacking structure usually stacks the cell stack units 500 together by the upper and lower end plates through the bolt, nut and disc spring, the structure is complex, and when disassembling, the nut and bolt need to be removed and installed one by one, the installation and disassembly efficiency is low, and the bolt protrudes from the stacking structure and is directly in contact with the water supply, which is easy to cause corrosion problem of the bolt, thereby affecting the stability of the stacking structure. The technical scheme of the present application sets the bottom plate 100 and the support assembly 200 in the stacking structure, the support assembly 200 includes at least two support columns 210, each support column 210 is provided with a mounting groove 211, when the plurality of cell stack units 500 are stacked in the stacking structure, the operator puts the cell stack unit 500 into the bottom plate 100 from above the bottom plate 100 in sequence, the mounting groove 211 can provide a guiding effect for each cell stack unit 500, reduces the human intervention, ensures that the cell stack unit 500 remains stable during the stacking process, and realizes the precise positioning of the cell stack unit 500 through the mounting groove 211, avoids the position deviation during installation, improves the stacking and assembly efficiency of the cell stack unit 500, and can also improve the stability and reliability of the stacking structure.

[0036] Preferably, the base plate 100 and the support assembly 200 are integrally formed, which reduces the number of connecting parts between the base plate 100 and the support assembly 200, thus improving the efficiency of installation and disassembly. Furthermore, by modularly integrating the base plate 100 and the support assembly 200, the battery stack unit 500 is easily installed within the stacked structure, shortening the stacking assembly time, improving the stability of the stacked structure and the overall structural strength, and reducing manufacturing costs.

[0037] like Figures 1-2 As shown, the stacking structure also includes a top plate 300. The top plate 300 is correspondingly arranged with the bottom plate 100, and the support column 210 is connected between the bottom plate 100 and the top plate 300. This helps to ensure the structural integrity of the battery stack unit 500 under pressure operation. The connection between the top plate 300 and the bottom plate 100 enhances the stability of the overall stacking structure and provides effective support for the battery stack unit 500, making it suitable for withstanding pressure from different directions.

[0038] like Figures 1-2 As shown, the stacked structure also includes a first elastic element 400 and a second elastic element 600. The first elastic element 400 is disposed between the top plate 300 and the support assembly 200, and the second elastic element 600 is located in the mounting groove 211 and disposed between the battery stack unit 500 closest to the bottom plate 100 and the bottom plate 100 within the stacked structure. During charging and discharging, the battery stack unit 500 will undergo linear expansion due to factors such as chemical reactions, thermal expansion, gas accumulation, and the cumulative effect of the stacked structure. Excessive expansion force may affect the overall strength of the stacked structure and may cause safety accidents. By setting the first elastic element 400 between the top plate 300 and the support assembly 200, and the second elastic element 600 between the battery stack unit 500 and the bottom plate 100, the linear expansion of the battery stack unit 500 can be absorbed by the elastic deformation capacity of the first elastic element 400 and the second elastic element 600. Preferably, the first elastic element 400 and the second elastic element 600 are disc springs. When the disc spring is under pressure, it can undergo axial deformation and simultaneously apply a reverse rebound force. When the battery stack unit 500 undergoes linear expansion, the disc spring can absorb the volume change through its own elastic deformation, converting the stress of linear expansion into the deformation stress of the disc spring. This prevents the linear expansion force from acting directly on the structural components of the battery stack unit. Furthermore, the disc spring can provide constant elastic force within a certain compression range. This means that even if the battery stack unit 500 continues to expand, the disc spring can maintain a uniform clamping force on the battery stack unit 500, preventing loosening of the contact between components within the stacked structure or stress concentration. This avoids problems such as device failure or performance degradation that may occur due to the linear expansion of the battery stack unit 500.

[0039] like Figure 5As shown, the top plate 300 has a mounting protrusion 310 on the side facing the support column 210, which is arranged in a stepped manner relative to the top plate 300. The inner hole diameter of the first elastic member 400 matches the diameter of the mounting protrusion 310, so that the first elastic member 400 can be sleeved on the outer periphery of the mounting protrusion 310. During assembly, the first elastic member 400 is connected to the mounting protrusion 310 by external force. The first elastic member 400 maintains the connection with the mounting protrusion 310 by relying on the elastic rebound force of itself. It should be noted that the size tolerance of the mounting protrusion 310 and the inner hole of the first elastic member 400 needs to be reasonably designed to ensure that the pressing force is moderate. The mounting protrusion 310 facilitates the fixation and positioning of the first elastic member 400, ensures that the expansion of the battery stack unit 500 during operation is effectively controlled, and improves the stability of the system operation.

[0040] As shown in Figures 3-4 The support assembly 200 further includes mounting portions 220, one of which connects the support column 210 and the top plate 300, and the other of which connects the support column 210 and the bottom plate 100. Preferably, the mounting portion 220 includes an L-shaped mounting plate, as shown in Figure 5 The top plate 300 has a mounting end 330 matched with the L-shaped mounting plate, and the mounting protrusion 310 is arranged on the mounting end 330. The L-shaped mounting plate provides an additional support surface, which helps to improve the connection strength of the support assembly 200, the top plate 300 and the bottom plate 100, and is suitable for occasions requiring higher stability.

[0041] As shown in Figure 1 The bottom plate 100 is quadrangular, and the support assembly 200 includes four support columns 210 evenly distributed at the four corners of the bottom plate 100 to achieve better support effect. The number of the first elastic member 400 and the second elastic member 600 in the stacking structure corresponds to the number of the support column 210 respectively. Each support column 210 has a first elastic member 400 between it and the top plate 300, and each mounting groove 211 has a second elastic member 600 inside it. The second elastic member 600 is arranged between the battery stack unit 500 and the bottom plate 100, and can absorb the linear expansion of the battery stack unit 500 from the top and bottom directions respectively, which is conducive to improving the stability of the stacking structure and improving electrical safety.

[0042] As shown in Figure 1As shown, in one embodiment of this application, when stacking multiple battery stack units 500 within a stacking structure, the operator sequentially places the second elastic member 600, the multiple battery stack units 500, and other structures into the base plate 100 from above. Guided by the mounting groove 211, the battery stack units 500 are sequentially stacked within the stacking structure. Then, the first elastic member 400 is placed into the stacking structure from above the base plate 100, with one end of the first elastic member 400 contacting the support component 200. Finally, the top plate 300 is welded to the mounting portion 220, and the other end of the first elastic member 400 is connected to the mounting protrusion 310. This installation method helps reduce the number of bolts and nuts on the top plate 300, improving efficiency during installation and disassembly. Furthermore, the top plate 300, support component 200, and base plate 100 are combined into a single unit, improving the stability of the stacking structure and the overall structural strength.

[0043] like Figures 6-8 As shown, in another embodiment of this application, a first mounting hole 221 is provided on the mounting portion 220 connected to the top plate 300, and a second mounting hole 320 corresponding to the first mounting hole 221 is provided on the top plate 300. The first mounting hole 221 and the second mounting hole 320 can be matched and connected by a connector to detachably connect the top plate 300 and the support assembly 200, which facilitates the later maintenance of the battery stack unit 500. Furthermore, the connector used to connect the top plate 300 and the mounting portion 220 is relatively short, which facilitates quick installation and improves the efficiency of installation and disassembly. In this embodiment, the connector is a bolt. Additionally, a waterproof and anti-corrosion coating can be applied to the surface of the connector, or waterproof and anti-corrosion materials can be provided in the first mounting hole 221 and the second mounting hole 320, thereby improving the corrosion resistance of the device.

[0044] like Figure 8 As shown, the second mounting hole 320 is provided at the mounting end 330, and the top plate 300 has two second mounting holes 320. The two second mounting holes 320 are located on opposite sides of the mounting protrusion 310. The mounting part 220 also includes two first mounting holes 221. The first mounting holes 221 and the second mounting holes 320 cooperate with each other to achieve multi-point support, so as to distribute pressure and improve the overall structural strength.

[0045] like Figure 1 or Figure 6 As shown, this application provides an electrolytic cell stack, which includes at least two cell stack units 500 and an electrolytic cell stack structure according to any of the foregoing embodiments of this application, wherein the cell stack units 500 are stacked within the stack structure. Figures 1-2 As shown, the stacked structure includes a base plate 100 and a support assembly 200. The support assembly 200 is disposed on the base plate 100 and includes at least two support columns 210, as shown.Figures 3-4 As shown in the drawings, each support column 210 has a mounting groove 211 on it respectively, the inner wall shape of the mounting groove 211 matches the outer peripheral shape of at least part of the battery stack unit 500, so that the battery stack unit 500 can be sequentially stacked and mounted in the stacking structure under the guidance of the mounting groove 211.

[0046] The electrolytic cell stack of the technical scheme of the present application comprises at least two battery stack units 500, each battery stack unit 500 is sequentially stacked and arranged in the stacking structure, the stacking structure comprises a bottom plate 100 and a support assembly 200, the support assembly 200 comprises at least two support columns 210, each support column 210 has a mounting groove 211 on it respectively, when the plurality of battery stack units 500 are stacked in the stacking structure, the mounting groove 211 can provide a guiding effect for each battery stack unit 500, ensuring that the battery stack unit 500 remains stable during the stacking process, and the precise positioning of the battery stack unit 500 is realized through the mounting groove 211, avoiding position deviation during installation, improving the assembly efficiency of the electrolytic cell stack, and also improving the stability and reliability of the stacking structure. By stacking the battery stack unit 500 in the stacking structure, modular design can be realized, which is suitable for different scale production needs.

[0047] As shown in the drawings, the outer periphery of each battery stack unit 500 comprises at least one positioning structure 510, the shape of the positioning structure 510 matches the inner wall shape of the mounting groove 211, the positioning structure 510 can move in the mounting groove 211, so that the battery stack unit 500 can be sequentially stacked and mounted in the stacking structure under the guidance of the mounting groove 211, the positioning structure 510 is beneficial to ensure the lateral fixation of the battery stack unit 500 during the stacking process, improve the positioning accuracy, reduce the installation error, and simplify the operation. Preferably, as shown in the drawings, the mounting groove 211 has an arc-shaped guiding surface 2111, as shown in the drawings, the positioning structure 510 has an arc-shaped guiding lug 511. The arc-shaped guiding surface 2111 and the arc-shaped guiding lug 511 cooperate to reduce the friction of the battery stack unit 500 during installation, ensure the smoothness of assembly, and improve the stacking efficiency. Figure 1 Figure 4 Figure 9

[0048] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made according to the contents of the present application specification and drawings, or direct / indirect application in other related technical fields within the concept of the present application are included in the patent protection scope of the present application.​​​

Claims

1. An electrolytic cell stack structure, characterized by, The stack structure comprises: a bottom plate (100); and a support assembly (200) arranged on the bottom plate (100), the support assembly (200) comprising at least two support columns (210), each of the support columns (210) being provided with a mounting groove (211) on the support column (210), an inner wall of the mounting groove (211) being shaped to match at least a part of an outer periphery of a cell stack unit (500), the cell stack unit (500) being arranged between the support columns (210), and the outer periphery of the cell stack unit (500) being arranged in the mounting groove (211).

2. The stack structure of claim 1, wherein, The stack structure further comprises: a top plate (300) arranged opposite to the bottom plate (100), the support columns (210) being connected between the bottom plate (100) and the top plate (300).

3. The stack structure of claim 2, wherein, The stack structure further comprises: a first elastic member (400) arranged between the top plate (300) and the support assembly (200); and a second elastic member (600) arranged in the mounting groove (211) and between the cell stack unit (500) and the bottom plate (100).

4. The stack structure of claim 3, wherein, The top plate (300) is provided with a mounting protrusion (310) on a side of the top plate (300) facing the support columns (210), the first elastic member (400) being connected to the mounting protrusion (310).

5. The stacked structure according to any one of claims 1 to 4, wherein The bottom plate (100) and the support assembly (200) are integrally formed.

6. The stacked structure according to any one of claims 2 to 4, wherein The support assembly (200) further comprises a mounting portion (220) connected to the support columns (210), the mounting portion (220) being provided with a first mounting hole (221), the top plate (300) being provided with a second mounting hole (320), the first mounting hole (221) and the second mounting hole (320) being connectable by a connecting member.

7. The stacked structure of claim 6, wherein, The mounting portion (220) comprises a mounting plate.

8. An electrolyser stack characterised in that, The electrolytic cell stack comprises: at least two cell stack units (500); and The electrolytic cell stack structure according to any one of claims 1 to 7, the cell stack units (500) being arranged in the stack structure.

9. An electrolyser stack as claimed in claim 8, wherein, An outer periphery of each of the cell stack units (500) comprises at least one positioning structure (510) shaped to match an inner wall of the mounting groove (211), the positioning structure (510) being movable in the mounting groove (211) so that the cell stack units (500) can be arranged in the stack structure in sequence under guidance of the mounting groove (211).

10. An electrolyser stack as claimed in claim 9, wherein, The mounting groove (211) has an arc-shaped guiding surface (2111), and the positioning structure (510) has an arc-shaped guiding lug (511).

Images