An EDI module end plate

Abstract

The utility model discloses an EDI module end plate belongs to water purification processing field, has solved the inconvenient problem of electrode plate disassembly of prior art, and the technical scheme that solves this problem includes end plate body, electrode plate and sealing plate, and end plate body is equipped with the mounting groove, and the electrode plate is embedded in the mounting groove and is attached with the side wall of mounting groove, and the sealing plate cover is equipped with the mounting groove and is detachably connected with end plate body, and the side wall of mounting groove is equipped with the notch that communicates with mounting groove, and the notch is equipped with lateral opening and top opening, and the notch is equipped with the pressing block that can move along the vertical direction, and the pressing block is matched with the lateral opening and the side surface of electrode plate, and the pressing block is acted on by the external force and is equipped with at least the first position that is flush with the top of mounting groove and the second position that makes electrode plate side surface expose along the vertical direction and sinks, and when the pressing block is in the second position, the area of the notch on the upper portion of pressing block forms the operation space.

Description

Technical Field

[0001] This utility model relates to the field of water purification processing, and in particular to an EDI module end plate. Background Technology

[0002] Electro-deionization (EDI) is a pure water preparation technology that combines ion exchange, ion exchange membrane, and ion electromigration technologies. EDI modules contain positive and negative electrode plates that provide the necessary electrical energy for ion exchange. For example, utility model patents such as CN217173358U and CN221862094U disclose electrode plates embedded in the mounting groove of the end plate body and fitting snugly against the side wall of the groove, with the exterior covered and fixed by a sealing plate. In actual maintenance, electrode plates are prone to scaling or aging after long-term operation, requiring periodic disassembly, cleaning, or replacement. However, due to the extremely small gap between the electrode plate and the sealing plate, workers cannot directly grasp the electrode plate with their fingers and usually need to use tools such as pry bars for disassembly. But due to the limited space, the pry bar operation is severely insufficient, making disassembly difficult and easily scratching or damaging the electrode plate surface. It may also damage the sealing structure of the mounting groove, leading to secondary damage. Utility Model Content

[0003] The purpose of this invention is to provide an EDI module end plate that solves the problem of inconvenient electrode plate disassembly in the prior art, making electrode plate disassembly more convenient.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an EDI module end plate, comprising an end plate body, an electrode plate, and a sealing plate. The end plate body is provided with a mounting groove, the electrode plate is embedded in the mounting groove and fits against the side wall of the mounting groove, the sealing plate covers the mounting groove and is detachably connected to the end plate body, the side wall of the mounting groove is provided with a notch communicating with the mounting groove, the notch is provided with a lateral opening and a top opening, and a pressing block that can move vertically is provided in the notch. The pressing block cooperates with the side surface of the electrode plate through the lateral opening. When the pressing block is subjected to external force, it has at least a first position flush with the top of the mounting groove and a second position that sinks vertically to expose the side of the electrode plate. When the pressing block is in the second position, the area above the pressing block forms an operating space.

[0005] After adopting the above technical solution, the present invention has the following advantages: By setting a notch with a lateral opening and a top opening on the side wall of the mounting groove, and arranging a vertically movable pressing block in the notch, the pressing block only needs to be manually pushed. When the pressing block is in the first position, its top surface is flush with or smoothly transitions to the top of the mounting groove, without affecting the installation and sealing of the sealing plate. When it is necessary to remove the electrode plate, press the pressing block down to the second position. The pressing block sinks vertically, exposing the side of the electrode plate. At the same time, sufficient operating space is formed in the area above the pressing block where the notch is located, making it easy for external tools or fingers to enter and thus smoothly grasp the electrode plate for removal or replacement. The whole process is simple to operate, reduces damage to the electrode plate and sealing structure, and significantly improves the convenience and safety of maintenance.

[0006] Furthermore, the notch is located in the middle of the side wall of the mounting groove.

[0007] Using the aforementioned technical solution, after the pressing block sinks to the second position, the operating space formed by the notch in the middle of the side wall can correspond to the middle position of the electrode plate. The operator can grab the electrode plate from the middle area where the force is more evenly distributed. This makes it easier to apply force and avoids the electrode plate tilting or getting stuck due to eccentric force as much as possible. It also reduces the risk of the electrode plate deforming or being damaged due to uneven force during the grabbing process.

[0008] Furthermore, the sidewall of the mounting groove is provided with at least two notches, the notches are located on two opposite sidewalls of the mounting groove, and each mounting groove is provided with the pressing block.

[0009] By adopting the aforementioned technical solution, the pressing blocks on both sides form symmetrical and balanced lateral limiting and support for the electrode plate, which minimizes the risk of displacement or tilting of the electrode plate due to unilateral force during installation or operation. This significantly improves the stability and positioning accuracy of the electrode plate in contact with the side wall of the mounting groove. Secondly, when disassembling, the pressing blocks at the notches on both sides sink synchronously, creating operating space on both sides of the electrode plate. Workers can apply force from both sides simultaneously to grab the electrode plate, making the force on the electrode plate more balanced. This not only makes it easier to remove the electrode plate from the mounting groove, but also minimizes the risk of electrode plate deformation or edge damage caused by unilateral gripping.

[0010] Furthermore, the notch is provided with an elastic element that tends to keep the pressing block in the first position.

[0011] By adopting the aforementioned technical solution, the pressing block can be stably positioned in the first position, flush with the top of the mounting slot, without the need for additional fixing structures. This provides reliable lateral support and positioning for the electrode plate, minimizing the risk of the pressing block accidentally sinking due to vibration, water flow impact, or other factors during EDI module operation. This prevents the electrode plate from loosening or shifting, ensuring the tightness of the fit between the electrode plate and the side wall of the mounting slot, as well as the overall sealing and operational stability of the module. Secondly, the automatic reset function of the elastic element simplifies the operation process. After the electrode plate is disassembled and maintained, there is no need to manually adjust the position of the pressing block. Simply release the external force, and the pressing block will automatically spring back to the first position under the action of the elastic element, facilitating a quick restoration of the module assembly state and improving maintenance efficiency.

[0012] Furthermore, the inner wall of the notch and the pressing block are provided with a damping structure that generates a damping force when the pressing block is reset from the second position to the first position.

[0013] The above technical solution allows the pressing block to slowly rebound to the first position after the external force is released, extending the time it takes to return from the second position. During this period, the pressing block remains in a depressed state, the side of the electrode plate remains exposed, and the operating space remains stable. Users do not need to continuously press to maintain the second position and can simultaneously remove or install / remove the electrode plate or the sealing plate with both hands, effectively freeing up their hands and improving maintenance convenience and operational efficiency.

[0014] Furthermore, the damping structure includes a first damping friction surface disposed on the inner wall of the notch and a second damping friction surface disposed on the surface of the pressing block. The second damping friction surface and the first damping friction surface are in frictional contact with each other, and both the first damping friction surface and the second damping friction surface are offset from the electrode plate.

[0015] Through the above technical solution, the first damping friction surface and the second damping friction surface rub against each other to generate damping force, so as to realize the slow rebound when the pressing block is reset to the first position. At the same time, the first damping friction surface and the second damping friction surface are staggered from the electrode plate to avoid the friction area being directly opposite the electrode plate as much as possible, thereby preventing the surface of the electrode plate from being scratched or worn during the pressing or resetting process.

[0016] Furthermore, a sealing element for sealing the gap between the pressing block and the inner wall of the notch is provided, and the sealing element is integrally formed with the pressing block.

[0017] The above technical solution can effectively prevent fluid leakage along the notch during the reciprocating motion of the pressing block, improve the overall sealing performance of the end plate, and make the connection between the sealing element and the pressing block reliable, avoiding assembly detachment or misalignment as much as possible, while reducing the number of parts and simplifying the assembly process.

[0018] Furthermore, the bottom of the notch is inclined upwards from the outside inwards towards the mounting groove.

[0019] With the above technical solution, the liquid flows outward naturally under the action of gravity, which can effectively prevent external liquid from flowing into the installation groove from the top opening or side opening along the bottom of the notch, thereby minimizing the risk of water seeping into the electrode plate area and causing short circuits, corrosion or insulation failure.

[0020] Furthermore, the sidewall of the mounting groove includes at least a long side and a short side, and the pressing block is disposed on the long side.

[0021] With the above technical solution, the pressing block is set on the long side, which can make full use of the larger arrangement space on the long side, facilitates the installation structure design and motion guidance. At the same time, when disassembling the electrode plate, a prying force is applied from the side corresponding to the long side, causing the electrode plate to rotate around the short side and come out. Since the contact area between the short side and the electrode plate is smaller than that between the long side and the electrode plate, and the frictional resistance is proportional to the contact area, only a small prying force is needed to pry up the electrode plate, achieving labor-saving and smooth disassembly.

[0022] Furthermore, the sealing plate covers the pressing block.

[0023] Through the above technical solution, the sealing plate can press the pressing block tightly when covering the electrode plate, thereby effectively limiting the position of both the electrode plate and the pressing block, preventing the electrode plate from falling out of the mounting groove as much as possible. Simultaneously, the elastic element provides continuous upward elastic support to the pressing block, forming a double-sided limit to prevent it from loosening due to vibration during equipment operation, thus ensuring the pressing block remains stably in the first position as much as possible. At the same time, the sealing plate covers the space above the pressing block, preventing external foreign objects, liquids, or dust from entering the notch, improving the overall sealing and safety of the end plate, achieving integrated protection, simplifying external protection design, and facilitating on-site maintenance and cleaning. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the EDI module end plate of this utility model;

[0026] Figure 2 This is an exploded view of the EDI module end board of this utility model;

[0027] Figure 3 This is a partial structural diagram of the EDI module end plate when the pressing block is in the first position in this utility model;

[0028] Figure 4 This is a partial structural cross-sectional view of the EDI module end plate when the pressing block is in the first position in this utility model;

[0029] Figure 5 This is a schematic diagram of the end plate body when the pressing block is in the first position in this utility model;

[0030] Figure 6 This is a partial structural diagram of the EDI module end plate when the pressing block is in the second position in this utility model;

[0031] Figure 7 This is a partial structural cross-sectional view of the EDI module end plate when the pressing block is in the second position in this utility model;

[0032] Figure 8 This is a schematic diagram of the end plate body when the pressing block is in the second position in this utility model;

[0033] In the figure, 10 is the end plate body; 11 is the mounting groove; 12 is the side wall; 121 is the long side; 122 is the short side; 13 is the notch; 131 is the top opening; 132 is the side opening; 133 is the operating space; 20 is the electrode plate; 30 is the sealing plate; 40 is the pressing block; and 50 is the elastic element. Detailed Implementation

[0034] 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.

[0035] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0036] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0037] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0038] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0039] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0040] like Figures 1 to 8 As shown, this utility model provides an EDI module end plate, including an end plate body 10, an electrode plate 20, and a sealing plate 30. The end plate body 10 is provided with a mounting groove 11. The electrode plate 20 is embedded in the mounting groove 11 and fits against the side wall 12 of the mounting groove 11. The sealing plate 30 covers the mounting groove 11 and is detachably connected to the end plate body 10. The side wall 12 of the mounting groove 11 is provided with a notch 13 communicating with the mounting groove 11. The notch 13 is provided with a lateral opening 132 and a top opening 131. A pressing block 40 that can move vertically is provided in the notch 13. The pressing block 40 cooperates with the side surface of the electrode plate 20 through the lateral opening 132. When the pressing block 40 is subjected to external force, it has at least a first position flush with the top of the mounting groove 11 and a second position that sinks vertically to expose the side of the electrode plate 20. When the pressing block 40 is in the second position, the area of ​​the notch 13 above the pressing block 40 forms an operating space 133.

[0041] By providing a notch 13 with a lateral opening 132 and a top opening 131 on the side wall 12 of the mounting groove 11, and configuring a vertically movable pressing block 40 within the notch 13, the pressing block 40 can be manually pushed. When the pressing block 40 is in the first position, its top surface is flush with or smoothly transitions to the top of the mounting groove 11, without affecting the installation and sealing of the sealing plate 30. When it is necessary to remove the electrode plate 20, the pressing block 40 is pressed down to the second position, and the pressing block 40 sinks vertically, exposing the side of the electrode plate 20. At the same time, sufficient operating space 133 is formed in the area of ​​the notch 13 above the pressing block 40, which facilitates the entry of external tools or fingers to smoothly grasp the electrode plate 20 for removal or replacement. The whole process is simple to operate, reduces damage to the electrode plate 20 and the sealing structure, and significantly improves the convenience and safety of maintenance.

[0042] It should be noted that the quick-release installation device for EDI electrode plates is used in conventional EDI water treatment devices. EDI water treatment devices typically include an inlet, an outlet, a desalination chamber and a concentrate chamber formed by stacked ion exchange membranes, an electrode chamber, an electrode plate 20, and an external power distribution box. During operation, the electrode plate 20 is powered by the power distribution box. Raw water enters the desalination chamber through the inlet, and a stable electric field is formed between the anode and cathode, driving the ions in the desalination chamber to migrate in a directional manner. Cations move towards the cathode and pass through the cation exchange membrane into the concentrate chamber; anions move towards the anode and pass through the anion exchange membrane into the concentrate chamber, thereby achieving continuous removal of ions from the water. The purified water is discharged from the outlet.

[0043] To facilitate operation, an elastic element 50 is provided within the notch 13 to maintain the pressing block 40 in a first position. The elastic element 50 is located between the bottom of the pressing block 40 and the bottom surface of the notch 13. Without additional fixing structures, the pressing block 40 can be stably positioned in the first position, flush with the top of the mounting groove 11, providing reliable lateral support and positioning for the electrode plate 20. This minimizes the risk of the pressing block 40 accidentally sinking due to vibration, water flow impact, or other factors during EDI module operation, thus preventing the electrode plate 20 from loosening or shifting. This ensures the tightness of the fit between the electrode plate 20 and the side wall 12 of the mounting groove 11, as well as the overall sealing and operational stability of the module. Furthermore, the automatic reset function of the elastic element 50 simplifies the operation process. After disassembling and maintaining the electrode plate 20, there is no need to manually adjust the position of the pressing block 40. Simply releasing the external force allows the pressing block 40 to automatically spring back to the first position under the action of the elastic element 50, facilitating quick restoration of the module assembly state and improving maintenance efficiency.

[0044] It should be noted that the elastic element 50 can be a spring. Springs have a more stable structure, reliable elastic performance, and are easy to install and maintain.

[0045] To further facilitate operation, the inner wall of the notch 13 and the pressing block 40 are provided with a damping structure that generates damping force when the pressing block 40 resets from the second position to the first position. This allows the pressing block 40 to slowly rebound to the first position after the external force is released, prolonging the time it takes to return from the second position. During this period, the pressing block 40 remains in a sunken state, the side of the electrode plate 20 remains exposed, and the operating space 133 is stably maintained. The user does not need to continuously press to maintain the second position and can simultaneously remove or install / remove the electrode plate 20 or the sealing plate 30 with both hands, effectively freeing up their hands and improving maintenance convenience and operational efficiency.

[0046] Specifically, the damping structure includes a first damping friction surface on the inner wall of the notch 13 and a second damping friction surface on the surface of the pressing block 40. The second damping friction surface and the first damping friction surface are in frictional contact with each other, and both the first damping friction surface and the second damping friction surface are offset from the electrode plate 20.

[0047] The first and second damping friction surfaces come into contact with each other to generate damping force, which enables the pressing block 40 to slowly rebound when it resets to the first position. At the same time, the first and second damping friction surfaces are staggered from the electrode plate 20 to avoid the friction area being directly opposite the electrode plate 20 as much as possible, thereby preventing the surface of the electrode plate 20 from being scratched or worn during pressing or resetting.

[0048] Furthermore, the notch 13 is located in the middle of the side wall 12 of the mounting groove 11. After the pressing block 40 sinks to the second position, the operating space 133 formed by the notch 13 in the middle of the side wall 12 can correspond to the middle position of the electrode plate 20. The operator can grasp the electrode plate 20 from the middle area where the force is more even. This makes it easier to apply force and avoids the electrode plate 20 tilting or getting stuck due to eccentric force as much as possible. It also reduces the risk of the electrode plate 20 being deformed or damaged due to uneven force during the grasping process.

[0049] To make operation easier, the sidewall 12 of the mounting groove 11 is rectangular, and the sidewall 12 of the mounting groove 11 includes at least a long side 121 and a short side 122. The pressing block 40 is set on the long side 121. The pressing block 40 is set on the long side 121, which makes full use of the larger arrangement space of the long side 121, facilitates the installation structure design and movement guidance. When disassembling the electrode plate 20, a prying force is applied from the side corresponding to the long side 121, so that the electrode plate 20 rotates around the short side 122 and comes out. Since the contact area between the short side 122 and the electrode plate 20 is smaller than the contact area between the long side 121 and the electrode plate 20, and the frictional resistance is proportional to the contact area, only a small prying force is needed to pry up the electrode plate 20, so as to achieve effortless and smooth disassembly.

[0050] When the sealing plate 30 covers the electrode plate 20, it can press the pressing block 40, thereby effectively limiting the position of both the top of the electrode plate 20 and the top of the pressing block 40, preventing the electrode plate 20 from falling out of the mounting groove 11 as much as possible. At the same time, the elastic element 50 provides continuous upward elastic support to the pressing block 40, thereby limiting the pressing block 40 on both sides and preventing it from loosening due to vibration during equipment operation, thus ensuring that the pressing block 40 is stably maintained in the first position as much as possible. Meanwhile, the sealing plate 30 covers the space above the pressing block 40, preventing external foreign objects, liquids or dust from entering the notch 13, improving the overall sealing and safety of the end plate, achieving integrated protection, simplifying the external protection design, and facilitating on-site maintenance and cleaning.

[0051] It should be noted that the sealing plate 30 is connected to the end plate body 10 by screws, so as to achieve detachable fixation.

[0052] Furthermore, a sealing element is provided between the inner walls of the pressing block 40 and the notch 13 to seal the gap between them. The sealing element is integrally formed with the pressing block 40. This effectively prevents fluid leakage along the notch 13 during the reciprocating motion of the pressing block 40, improves the overall sealing performance of the end plate, and the integrally formed structure ensures a reliable connection between the sealing element and the pressing block 40, minimizing assembly detachment or misalignment, while also reducing the number of parts and simplifying the assembly process.

[0053] It should be noted that the seal is made of an elastic material and has elastic and rebound properties. It is used to fill the gap between the pressing block 40 and the inner wall of the notch 13 to achieve a seal and prevent leakage. The seal also serves as a second damping friction surface, which directly contacts the first damping friction surface on the inner wall of the notch 13 and generates frictional resistance. It provides a stable damping force during the process of the pressing block 40 resetting from the second position to the first position, thus slowing down its rebound speed.

[0054] Furthermore, the bottom of the notch 13 is inclined upwards from the outside to the inside towards the mounting groove 11. Under the action of gravity, the liquid flows outwards naturally, which can effectively prevent external liquid from flowing into the mounting groove 11 from the top opening 131 or the side opening 132 along the bottom of the notch 13, thereby minimizing the risk of moisture seeping into the electrode plate 20 area and causing short circuits, corrosion or insulation failure.

[0055] During disassembly, first remove the screws on the sealing plate 30 with a screwdriver, then remove the sealing plate 30. Next, press the pressing block 40 down to the second position. The pressing block 40 sinks vertically, exposing the side of the electrode plate 20. At the same time, sufficient operating space 133 is formed in the area of ​​the notch 13 above the pressing block 40, allowing external tools or fingers to easily grasp and disassemble the electrode plate 20. During installation, simply place the electrode plate 20 back into the mounting slot 11, then cover it with the sealing plate 30 and tighten the screws on the sealing plate 30 to press the sealing plate 30 into place, completing the assembly.

[0056] Understandably, in other embodiments, the pressing block may be equipped with a self-locking mechanism to achieve bistable switching, where pressing once keeps it in the second position and pressing again automatically resets it to the first position. The self-locking mechanism includes an elastic buckle on the pressing block, and a locking boss is provided on the inner wall of the notch corresponding to the second position. In the initial state, the pressing block is located in the first position under the elastic force of the elastic element, and the elastic buckle is located above the locking boss. When the pressing block is pressed down for the first time, the elastic buckle is squeezed by the lower surface of the locking boss and undergoes elastic deformation. After passing the locking boss, it returns to its original shape, and its end abuts against the lower part of the locking boss, locking the pressing block in the second position, so that the side of the electrode plate is continuously exposed, allowing the operator sufficient time to disassemble the electrode plate. When pressed down for the second time, the elastic buckle is deformed again by force, disengaging from the lower part of the locking boss and releasing the lock. At this time, the elastic element releases its stored energy, driving the pressing block to automatically reset upward to the first position.

[0057] Understandably, in other embodiments, the sidewalls of the mounting slot are provided with at least two notches, such as two notches, four notches, or other suitable numbers. The notches are located on two opposite sidewalls of the mounting slot, and each mounting slot is provided with a pressing block. The pressing blocks on both sides form symmetrical and balanced lateral limiting and support for the electrode plate, minimizing the risk of the electrode plate shifting or tilting due to unilateral force during installation or operation. This significantly improves the stability and positioning accuracy of the electrode plate's fit with the sidewalls of the mounting slot. Secondly, when disassembling, the pressing blocks at the notches on both sides sink synchronously, creating operating space on both opposite sides of the electrode plate. Workers can apply force from both sides simultaneously to grasp the electrode plate, making the force on the electrode plate more balanced. This not only makes it easier to remove the electrode plate from the mounting slot but also minimizes the risk of electrode plate deformation or edge damage caused by unilateral grasping. This is especially true for larger electrode plates, where bilateral grasping is easier.

[0058] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. An EDI module end plate, comprising an end plate body, an electrode plate, and a sealing plate, wherein the end plate body is provided with a mounting groove, the electrode plate is embedded in the mounting groove and abuts against the side wall of the mounting groove, and the sealing plate covers the mounting groove and is detachably connected to the end plate body, characterized in that: The side wall of the mounting groove is provided with a notch communicating with the mounting groove. The notch has a lateral opening and a top opening. A pressing block that can move vertically is provided in the notch. The pressing block cooperates with the side surface of the electrode plate through the lateral opening. When the pressing block is subjected to external force, it has at least a first position flush with the top of the mounting groove and a second position that sinks vertically to expose the side of the electrode plate. When the pressing block is in the second position, the area above the pressing block where the notch is located forms an operating space.

2. The EDI module end board according to claim 1, characterized in that, The notch is located in the middle of the side wall of the mounting groove.

3. The EDI module end board according to claim 1 or 2, characterized in that, The sidewall of the mounting groove is provided with at least two notches, which are located on two opposite sidewalls of the mounting groove, and each mounting groove is provided with the pressing block.

4. The EDI module end board according to claim 1, characterized in that, The notch is provided with an elastic element that tends to keep the pressing block in the first position.

5. The EDI module end board according to claim 4, characterized in that, The inner wall of the notch and the pressing block are provided with a damping structure that generates damping force when the pressing block is reset from the second position to the first position.

6. The EDI module end board according to claim 5, characterized in that, The damping structure includes a first damping friction surface on the inner wall of the notch and a second damping friction surface on the surface of the pressing block. The second damping friction surface and the first damping friction surface are in frictional contact with each other. Both the first damping friction surface and the second damping friction surface are offset from the electrode plate.

7. The EDI module end board according to claim 1, characterized in that, A sealing element is provided between the pressing block and the inner wall of the notch to seal the gap between them, and the sealing element is integrally formed with the pressing block.

8. The EDI module end board according to claim 1, characterized in that, The bottom of the notch is inclined upwards from the outside inwards towards the mounting groove.

9. The EDI module end board according to claim 1, characterized in that, The sidewall of the mounting groove includes at least a long side and a short side, and the pressing block is disposed on the long side.

10. The EDI module end board according to claim 1, characterized in that, The sealing plate covers the pressing block.

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