A threading board and energy storage device

Abstract

The application discloses a threading board and an energy storage device, and belongs to the technical field of threading boards. The threading board comprises a board body, a cover is sealed to a threading hole, the board body has a first opening, the threading hole and the first opening are communicated, a sealing element is arranged on one side of the board body facing the box, the sealing element has a second opening and a plurality of third openings, the second opening is communicated with the threading hole and the first opening, a plurality of limiting columns are connected with the board body and are arranged in the third openings, and one end of the limiting column away from the board body is abutted with the box. In this way, the cable passes through the first opening, the second opening and the threading hole in sequence to realize the electrical connection between the electrical components in the box and the outside. At the same time, the board body compresses the sealing element to achieve the sealing effect on the cable. In this process, the spacing between the board body and the box is limited by the limiting column, which can not only ensure that the compression amount of the sealing element can achieve the sealing effect, but also avoid the failure of the sealing element caused by excessive compression, thereby improving the stability of the sealing and fixing of the cable.

Description

Technical Field

[0001] This application belongs to the field of wiring board technology, specifically relating to a wiring board and energy storage device. Background Technology

[0002] The internal and external parts of the energy storage system are isolated by a enclosure, but the internal electrical components need to be connected to the external parts via cables. Therefore, a cable guide plate is required to connect the cables and the enclosure when they pass through it.

[0003] In related technologies, EPDM (Ethylene Propylene Diene Methylene) adhesive strips are pasted on the wiring board and fixed with rivet screws and nuts on the box body.

[0004] However, during the assembly of the wiring board, it is difficult to control the tightening force of the rivet screws and nuts. Too little tightening force will result in poor sealing effect of the EPDM sealing strip, failing to achieve the expected sealing effect; too much tightening force will result in excessive compression of the EPDM sealing strip, which will lead to material failure after long-term use. Utility Model Content

[0005] Purpose of this application: This application provides a threading board to solve the problem of difficulty in controlling the locking force during the assembly process of the threading board; this application also provides an energy storage device.

[0006] This application provides a cable guide plate disposed in a housing, the housing having cable holes, the cable guide plate comprising:

[0007] A plate body is sealed to the threading hole; the plate body has a first opening, and the threading hole is connected to the first opening.

[0008] A sealing element is disposed on the side of the plate facing the housing; the sealing element has a second opening and a plurality of third openings; the second opening communicates with the wire hole and the first opening.

[0009] Multiple limiting posts are connected to the plate and pass through the third opening, with the end of the limiting post away from the plate abutting against the box.

[0010] In some embodiments, along the direction from the plate to the housing, the seal has a remaining thickness after compression, and the dimension of the limiting post within the third opening is equal to the remaining thickness.

[0011] In some embodiments, the remaining thickness is 50% to 70% of the original thickness.

[0012] In some embodiments, a plurality of the third openings are evenly distributed on the seal, and the number of the limiting posts is the same as the number of the third openings.

[0013] In some embodiments, the seal has a plurality of apex corners, each of which is provided with at least one third opening, through which the limiting post passes.

[0014] In some embodiments, the seal has a plurality of connecting portions connected between two adjacent apex corners, and each connecting portion is provided with at least one third opening through which the limiting post passes.

[0015] In some embodiments, along the direction from the plate to the housing, the first opening has a first orthographic projection on the housing, the second opening has a second orthographic projection on the housing, and the first orthographic projection and the wire hole are located inside the second orthographic projection.

[0016] In some embodiments, the plate has a third orthographic projection on the box along the direction from the plate to the box, and the second orthographic projection is located inside the third orthographic projection.

[0017] In some embodiments, the seal has a fourth orthographic projection on the housing along the direction from the plate to the housing, and the third orthographic projection and the fourth orthographic projection at least partially overlap.

[0018] In some embodiments, a connector is also included;

[0019] The plate has a fourth opening, the sealing element has a fifth opening, and the housing has a sixth opening. The connector passes through the fourth opening, the fifth opening, and the sixth opening in sequence to connect the plate and the housing.

[0020] In some embodiments, the plate is an aluminum plate and the seal is an EPDM rubber seal.

[0021] Accordingly, this application also provides an energy storage device, comprising:

[0022] The housing has wire through holes;

[0023] The threading plate as described in any of the above embodiments covers the threading hole;

[0024] The cable passes sequentially through the first opening of the plate, the second opening of the seal, and the wire hole into the housing.

[0025] Beneficial Effects: Compared with the prior art, the cable guide provided in this application embodiment is disposed in a box with cable holes. The box has cable holes, and the cable guide includes: a plate body that covers the cable holes; the plate body has a first opening, and the cable holes and the first opening are connected; a sealing element disposed on the side of the plate body facing the box; the sealing element has a second opening and multiple third openings; the second opening is connected to the cable holes and the first opening; and multiple limiting posts connected to the plate body and passing through the third openings, with the ends of the limiting posts away from the plate body abutting against the box body. Thus, the cable passes through the first opening, the second opening, and the cable holes in sequence to achieve electrical connection between the internal electrical components of the box and the external environment. Simultaneously, the plate body compresses the sealing element to achieve a sealing effect on the cable. In this process, by setting the limiting posts to limit the distance between the plate body and the box body, it is possible to ensure that the compression of the sealing element achieves a sealing effect while preventing the sealing element from being over-compressed and failing, thereby improving the stability of the cable sealing and fixing.

[0026] It is understood that, compared with the prior art, the energy storage device provided in this application embodiment includes all the technical features and technical effects of the above-mentioned wiring board, and will not be repeated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the threading plate provided in the embodiments of this application;

[0029] Figure 2 This is an exploded structural diagram of the threading plate provided in the embodiments of this application;

[0030] Figure 3 This is a front view of the threading plate provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 Schematic diagram of the cross section of AA;

[0032] Figure 5 Another structural schematic diagram of the threading plate provided in the embodiments of this application;

[0033] Figure 6 A schematic diagram of another structure of the threading plate provided in the embodiments of this application;

[0034] Figure 7 This is a schematic diagram of the structure of the energy storage device provided in the embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100 - Cable guide plate; 110 - Plate body; 111 - First opening; 112 - Fourth opening; 113 - Seventh opening; 120 - Seal; 121 - Second opening; 122 - Third opening; 123 - Top corner; 124 - Connecting part; 125 - Fifth opening; 130 - Limiting post; 140 - Connecting part; 200 - Box body; 210 - Cable hole; 220 - Sixth opening; 300 - Cable. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application 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 this application described herein can be implemented in orders other than those illustrated or described herein. In the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, the terms "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 explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0039] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments and may not be to scale. The modules or processes shown in the drawings are not necessarily essential for implementing this application and therefore should not be used to limit the scope of protection of this application.

[0040] Currently, the energy storage system enclosure 200 is typically made of galvanized steel. When cables 300 pass through, eddy currents are generated in the enclosure 200, leading to significant heat generation and affecting the internal temperature and power transmission consumption of the energy storage system. Therefore, a cable guide plate 100 is usually installed to prevent the generation of eddy currents. The cable guide plate 100 is made of a material with low magnetic permeability, with EPDM adhesive strips pasted on the back, and is secured using rivet screws and nuts on the enclosure 200. However, during the assembly of the cable guide plate 100, the tightening force of the rivet screws and nuts is difficult to control. Insufficient tightening force will result in poor sealing of the EPDM adhesive strip, failing to achieve the expected sealing effect; excessive tightening force will cause excessive compression of the EPDM sealing strip, leading to material failure over long-term use.

[0041] In view of this, this application provides a threading board 100, which is connected to the board body 110 by a plurality of limiting posts 130 and threaded through a third opening 122. The end of the limiting post 130 away from the board body 110 abuts against the box body 200, so as to solve at least part of the above-mentioned technical problems.

[0042] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the threading board 100 provided in the embodiments of this application; Figure 2 This is an exploded structural diagram of the wiring board 100 provided in an embodiment of this application. This application provides a wiring board 100 disposed in a housing 200, the housing 200 having a wiring hole 210. The wiring board 100 includes: a plate 110, a sealing member 120, and multiple limiting posts 130. The plate 110 covers the wiring hole 210; the plate 110 has a first opening 111, which communicates with the wiring hole 210; the sealing member 120 is disposed on the side of the plate 110 facing the housing 200; the sealing member 120 has a second opening 121 and multiple third openings 122; the second opening 121 communicates with the wiring hole 210 and the first opening 111; the multiple limiting posts 130 are connected to the plate 110 and pass through the third openings 122, with one end of the limiting post 130 away from the plate 110 abutting against the housing 200.

[0043] Specifically, the sealing element 120 is located on the side of the plate 110 facing the housing 200. The second opening 121 is connected to the wiring hole 210 and the first opening 111 of the plate 110, forming a tight protective barrier. This effectively prevents water, dust, moisture, and other impurities from entering the housing 200 through the wiring hole 210, providing an ideal operating environment for the electrical components inside the housing 200 and improving the stability and reliability of the energy storage system. Secondly, multiple limiting posts 130 are connected to the plate 110 and pass through the third opening 122 of the sealing element 120. The end away from the plate 110 abuts against the housing 200, which can precisely constrain the position of the cable 300, preventing the cable 300 from shifting or rubbing due to vibration and shaking during equipment operation, protecting the cable 300 sheath, extending the cable 300's service life, and making the wiring neater and more orderly.

[0044] Thus, the cable 300 passes sequentially through the first opening 111, the second opening 121, and the wire hole 210 to achieve electrical connection between the internal electrical components of the enclosure 200 and the external environment. Simultaneously, the sealing element 120 is compressed by the plate 110 to achieve a sealing effect on the cable 300. During this process, a limiting post 130 is used to limit the distance between the plate 110 and the enclosure 200, ensuring that the compression of the sealing element 120 achieves a sealing effect while preventing it from being over-compressed and failing, thereby improving the stability of the sealing and fixing of the cable 300.

[0045] Please refer to the following: Figure 3 and Figure 4 , Figure 3 This is a front view of the threading plate provided in an embodiment of this application; Figure 4 for Figure 3 A cross-sectional schematic diagram of AA; in some embodiments, along the direction from plate 110 to box 200, seal 120 has the remaining thickness after compression, and the dimension of limit post 130 within the third opening 122 is equal to the remaining thickness.

[0046] Specifically, during installation, the wiring board 100 of this embodiment requires first placing the sealing member 120 on the side of the housing 200 facing the board 110, with the limiting post 130 inserted into the third opening 122. Then, the board 110 is placed on the side of the sealing member 120 away from the housing 200, and the sealing member 120 is compressed for installation until the limiting post 130 and the housing 200 abut. When the dimension of the limiting post 130 within the third opening 122 is equal to the remaining thickness, the limiting post 130 can precisely limit the degree of compression of the sealing member 120. Furthermore, the remaining thickness can be selected as the optimal compression condition for the sealing member 120. Thus, when the wiring board 100 is installed, the board body 110 and the limiting post 130 cooperate to accurately achieve the optimal compression of the seal 120, so that the board body 110 and the box 200 maintain the best sealing state, and the seal 120 also maintains the best compression state, further enhancing the stability of the connection between the wiring board 100 and the box 200.

[0047] In some embodiments, the remaining thickness is 50% to 70% of the original thickness.

[0048] Specifically, the remaining thickness can be any one of 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, or 70% of the original thickness, or a value between any two. Within the range of 50% to 70%, the seal 120 maintains sufficient thickness after compression to effectively fill the gap between the plate 110 and the housing 200, sealing and securing the cable 300 while maintaining the stability of the internal environment of the housing 200. Furthermore, it allows the seal 120 to retain appropriate elasticity, enabling it to recover its original shape well even under external forces. Thus, even after repeated vibrations and thermal expansion and contraction during long-term use, the seal 120 can still fit tightly against the plate 110, the housing 200 and the cable 300, continuously perform its sealing function, and extend the service life of the seal 120.

[0049] In some embodiments, a plurality of third openings 122 are evenly distributed on the seal 120, and the number of limiting posts 130 is the same as the number of third openings 122.

[0050] Specifically, the evenly distributed third opening 122 cooperates with the limiting post 130, ensuring that when the sealing element 120 is compressed, the corresponding parts of the plate 110 and the third opening 122 can evenly abut against the limiting post 130, and the plate 110 is evenly supported, thereby dispersing the connection force between the plate 110 and the housing 200. Simultaneously, all parts of the sealing element 120 are evenly compressed. Thus, the sealing element 120 forms a uniform sealing pressure between the plate 110 and the housing 200, ensuring a consistent sealing effect throughout the sealing element 120 and preventing localized overly tight or loose seals.

[0051] Please see Figure 5 , Figure 5 This is another structural schematic diagram of the threading plate 100 provided in the embodiments of this application; in some embodiments, the sealing member 120 has a plurality of apex corners 123, and each apex corner 123 is provided with at least one third opening 122, and a limiting post 130 is passed through the third opening 122.

[0052] Specifically, the apex 123 of the seal 120 is usually a critical sealing point. Therefore, in this embodiment, at least one third opening 122 is provided on each apex 123 of the seal 120, and a limiting post 130 is inserted therethrough. This strengthens the fit between the apex 123 of the seal 120 and the plate 110 and the housing 200, preventing deformation or displacement of the seal 120 at the apex 123 and increasing the sealing performance of the apex 123. Simultaneously, the limiting post 130 supports the plate 110 through the third opening 122 at the apex 123, making the pressure on the seal 120 at the apex 123 more uniform. When the plate 110 presses against the seal 120, the limiting post 130 at the apex 123 can evenly distribute the pressure on the plate 110, preventing excessive or insufficient local pressure at the apex 123 of the seal 120, thereby optimizing the overall pressure distribution on the seal 120 and further improving the sealing effect and service life of the seal 120.

[0053] Please see Figure 6 , Figure 6 This is another structural schematic diagram of the threading plate 100 provided in the embodiments of this application; in some embodiments, the sealing member 120 has a plurality of connecting portions 124, the connecting portions 124 are connected between two adjacent apex corners 123, and each connecting portion 124 is provided with at least one third opening 122, and a limiting post 130 is passed through the third opening 122.

[0054] In this embodiment, a third opening 122 is provided in the connecting portion 124, and a limiting post 130 is inserted through it. This allows the connecting portion 124 to fit more tightly against the plate 110 and the housing 200 under the pressure of the plate 110, effectively filling any gaps that may exist at the location of the connecting portion 124. Combined with the sealing cooperation at the apex corner 123, this strengthens the sealing performance of the entire sealing element 120 and reduces the possibility of leakage. Simultaneously, when the plate 110 presses the sealing element 120 against the housing 200, the limiting post 130 on the connecting portion 124 ensures that the pressure on the connecting portion 124 is more uniform, avoiding situations where the localized force is too large or too small. This makes the deformation of the sealing element 120 at the connecting portion 124 more uniform, preventing undesirable deformations such as twisting and wrinkling caused by uneven force, thereby ensuring the overall shape stability and consistent sealing effect of the sealing element 120.

[0055] In some embodiments, along the direction from the plate 110 to the housing 200, the first opening 111 has a first orthographic projection on the housing 200, and the second opening 121 has a second orthographic projection on the housing 200. The first orthographic projection and the wire hole 210 are located inside the second orthographic projection.

[0056] This ensures that after the cable 300 exits through the through hole 210, it can accurately pass through the second opening 121 and then through the first opening 111, thus achieving precise cable positioning and preventing the cable 300 from shifting or going astray during the cable threading process. Simultaneously, once the cable threading plate 100 is installed, the sealing element 120 surrounds the cable 300 within the area formed by the plate 110, the sealing element 120, and the housing 200, providing stable protection for the cable 300.

[0057] In some embodiments, along the direction from the plate 110 to the housing 200, the plate 110 has a third orthographic projection on the housing 200, and the second orthographic projection is located inside the third orthographic projection.

[0058] Specifically, the second orthographic projection is located inside the third orthographic projection, meaning that the second opening 121 on the seal 120 is covered by the projection of the edge of the plate 110. Even if the size of the seal 120 is larger than the size of the plate 110, when the plate 110 is connected to the housing 200, it can ensure that the plate 110 can effectively compress the second opening 121 and the surrounding area on the seal 120, allowing the seal 120 to better fill the gap between the plate 110 and the housing 200, and strengthening the sealing effect to protect the cable 300. Secondly, since the second opening 121 is within the projection range of the edge of the plate 110, the compression of the seal 120 by the plate 110 during installation is more even, avoiding deformation, damage, or displacement of the seal 120 due to excessive local force, which helps to improve the stability and reliability of the seal 120 and ensure the sealing performance of the cable tray 100 during long-term use.

[0059] In some embodiments, along the direction from the plate 110 to the housing 200, the seal 120 has a fourth orthographic projection on the housing 200, and the third orthographic projection and the fourth orthographic projection at least partially overlap.

[0060] Specifically, the third and fourth orthographic projections at least partially overlap, indicating that the plate 110 and the seal 120 at least partially overlap and cover each other. Even if the plate 110 and the seal 120 are different in size, when the plate 110 is connected to the housing 200, the plate 110 can exert a more uniform and effective compression on the seal 120, causing the seal 120 to better fill the gap between the plate 110 and the housing 200, thereby enhancing the sealing effect and protecting the cable 300 and the components inside the housing 200.

[0061] Please refer to it again. Figure 5 In some embodiments, the wiring board 100 further includes a connector 140; the board body 110 has a fourth opening 112, the sealing member 120 has a fifth opening 125, and the housing 200 has a sixth opening 220. The connector 140 passes through the fourth opening 112, the fifth opening 125 and the sixth opening 220 in sequence to connect the board body 110 and the housing 200.

[0062] Specifically, connector 140 passes sequentially through the fourth opening 112, the fifth opening 125, and the sixth opening 220, thus penetrating the plate 110, the seal 120, and the enclosure 200, tightly connecting the three together to form a stable integrated structure. In this way, the cable tray 100 can withstand certain external forces and vibrations, and is less prone to loosening or separation, thereby ensuring the stability of the sealed fixation of the cable 300. Furthermore, this connection method is relatively simple; during installation, connector 140 only needs to be sequentially passed through the fourth opening 112, the fifth opening 125, and the sixth opening 220 and secured, and disassembly is also convenient. Moreover, the specifications and installation position of connector 140 can be designed and adjusted according to actual needs, improving the flexibility and versatility of the connection between the cable tray 100 and the enclosure 200, and making it suitable for different types and sizes of enclosures 200 and cable trays 100.

[0063] In some embodiments, the plate 110 is an aluminum plate 110, and the seal 120 is an EPDM rubber seal 120.

[0064] Specifically, the aluminum plate 110 has a low density, is lightweight, and is highly corrosion-resistant. Therefore, using an aluminum plate 110 can adapt to different working environments and extend the service life of the cable tray 100. Furthermore, the aluminum plate 110 has excellent electrical and thermal conductivity, which helps to quickly conduct electrical charges away in special situations (such as electrostatic discharge protection), ensuring the safety of the cable 300. Its good thermal conductivity also helps to dissipate the heat generated during the cable pulling process in a timely manner, preventing heat accumulation from adversely affecting the cable 300.

[0065] The EPDM rubber seal 120 possesses excellent weather resistance, exhibiting strong resistance to natural factors such as sunlight, ozone, and rain, and is not prone to aging or cracking. This allows the seal 120 to maintain good performance during long-term use, effectively preventing dust and moisture from entering the cable 300 or housing 200, even in outdoor or harsh environments. Furthermore, the EPDM rubber seal 120 has high elasticity and flexibility, adapting to different surface shapes and dimensional errors, thus forming a tight seal between the plate 110 and the housing 200, providing reliable sealing protection for both the housing 200 and the cable 300. Moreover, the EPDM rubber seal 120 has good resistance to various chemicals and is not easily corroded by acids, alkalis, oils, or other chemicals. Therefore, in working environments where exposure to chemicals is possible, the EPDM rubber seal 120 maintains stable performance and will not fail due to chemical corrosion, improving the adaptability and reliability of the cable tray 100.

[0066] In summary, in this embodiment, the cable 300 passes sequentially through the first opening 111, the second opening 121, and the wire hole 210 to achieve electrical connection between the internal electrical components of the housing 200 and the external environment. Simultaneously, the sealing member 120 is compressed by the plate 110 to achieve a sealing effect on the cable 300. During this process, the distance between the plate 110 and the housing 200 is limited by the setting of the limiting post 130, ensuring that the compression of the sealing member 120 achieves a sealing effect while preventing the sealing member 120 from being over-compressed and failing, thereby improving the stability of the sealing and fixing of the cable 300.

[0067] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application. Accordingly, this application also provides an energy storage device, including: a housing 200, a wiring plate 100 as described in any of the above embodiments, and a cable 300. The housing 200 has a wiring hole 210, the wiring plate 100 covers the wiring hole 210, and the cable 300 sequentially passes through a first opening 111 of the plate 110, a second opening 121 of the seal 120, and the wiring hole 210 to enter the housing 200.

[0068] It is understood that, compared with the prior art, the energy storage device provided in this application embodiment includes all the technical features and technical effects of the above-mentioned wiring board 100, which will not be repeated here.

[0069] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0070] The sealing caps provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A threading board (100), characterized in that, The housing (200) is provided with a wire threading hole (210), and the wire threading plate (100) includes: A plate (110) is sealed to the thread hole (210); the plate (110) has a first opening (111), and the thread hole (210) and the first opening (111) are connected; A sealing element (120) is disposed on the side of the plate (110) facing the housing (200); the sealing element (120) has a second opening (121) and a plurality of third openings (122); the second opening (121) communicates with the wire hole (210) and the first opening (111); Multiple limiting posts (130) are connected to the plate (110) and pass through the third opening (122). The end of the limiting post (130) away from the plate (110) abuts against the box (200).

2. The threading plate (100) according to claim 1, characterized in that, Along the direction from the plate (110) to the box (200), the seal (120) has a remaining thickness after compression, and the dimension of the limiting post (130) within the third opening (122) is equal to the remaining thickness.

3. The threading plate (100) according to claim 2, characterized in that, The remaining thickness is 50% to 70% of the original thickness.

4. The threading plate (100) according to claim 1, characterized in that, Multiple third openings (122) are evenly distributed on the seal (120), and the number of limiting posts (130) is the same as the number of third openings (122).

5. The threading plate (100) according to claim 1, characterized in that, The seal (120) has a plurality of apex corners (123), each of the apex corners (123) being provided with at least one of the third openings (122), and the limiting post (130) passing through the third opening (122).

6. The threading plate (100) according to claim 5, characterized in that, The seal (120) has a plurality of connecting portions (124) connected between two adjacent apex corners (123), and each connecting portion (124) is provided with at least one third opening (122), through which the limiting post (130) passes.

7. The threading plate (100) according to claim 1, characterized in that, Along the direction from the plate (110) to the box (200), the first opening (111) has a first orthographic projection on the box (200), and the second opening (121) has a second orthographic projection on the box (200). The first orthographic projection and the wire hole (210) are located inside the second orthographic projection.

8. The threading plate (100) according to claim 7, characterized in that, Along the direction from the plate (110) to the box (200), the plate (110) has a third orthographic projection on the box (200), and the second orthographic projection is located inside the third orthographic projection.

9. The threading plate (100) according to claim 8, characterized in that, Along the direction from the plate (110) to the housing (200), the seal (120) has a fourth orthographic projection on the housing (200), and the third orthographic projection and the fourth orthographic projection at least partially overlap.

10. The threading plate (100) according to claim 1, characterized in that, It also includes connectors (140); The plate (110) has a fourth opening (112), the sealing member (120) has a fifth opening (125), the box (200) has a sixth opening (220), and the connector (140) passes through the fourth opening (112), the fifth opening (125) and the sixth opening (220) in sequence to connect the plate (110) and the box (200).

11. The threading plate (100) according to claim 1, characterized in that, The plate (110) is an aluminum plate (110), and the seal (120) is an EPDM rubber seal (120).

12. An energy storage device, characterized in that, include: The housing (200) has a wire hole (210); The threading plate (100) as described in any one of claims 1 to 11, wherein the threading plate (100) covers the threading hole (210); A cable (300) is introduced into the housing (200) by passing sequentially through the first opening (111) of the plate (110), the second opening (121) of the seal (120) and the wire hole (210).

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