Module end plate and battery provided with same

Abstract

The utility model relates to battery technology field and provide a kind of module end plate and the battery with it are provided.The utility model discloses module end plate includes end plate main body, output pole pedestal and protective cover;Wherein, output pole pedestal is integrally formed with end plate main body, protective cover and output pole pedestal are detachably connected, and between protective cover and output pole pedestal is equipped with limit component, and limit component is used to limit protective cover relative to output pole pedestal movement.The utility model discloses module end plate, can cancel the output pole pedestal of separate setting, simplify the quantity and type of parts in module, to facilitate the efficiency of module assembly is improved, simultaneously, still can improve the structural stability and use effect of module, thus can facilitate the efficiency of battery production line and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a module end plate and a battery having thereon. Background Technology

[0002] A battery module is an integrated assembly of several battery cells, typically connected together by a busbar bracket assembly. Modules are electrically connected to each other via output electrode assemblies and connecting copper busbars. Existing output electrode assemblies usually consist of a base and a protective cover, with the base mounted on an end plate and the protective cover mounted on the base. However, existing output electrode assemblies suffer from low assembly efficiency and weak stability in the installation and use of the base and protective cover, which is detrimental to improving module assembly efficiency and module quality. Utility Model Content

[0003] In view of this, the present invention aims to provide a module end plate, which is beneficial to improving module assembly efficiency and structural stability.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A module end plate is disposed at both ends of a battery cell module along its length. It includes an end plate body, an output electrode base disposed on the end plate body, and a protective cover disposed on the output electrode base. The protective cover is used to protect the output electrode busbar installed on the output electrode base.

[0006] The output electrode base is integrally formed with the end plate body. The protective cover and the output electrode base are detachably connected. A limiting component is provided between the protective cover and the output electrode base. The limiting component is used to restrict the movement of the protective cover relative to the output electrode base.

[0007] Furthermore, the protective cover and the output electrode base are connected by a snap-fit ​​assembly; the snap-fit ​​assembly includes a plurality of snap-fit ​​protrusions on the output electrode base and a plurality of snap-fit ​​slots on the protective cover, with each snap-fit ​​protrusion correspondingly snapping into each of the snap-fit ​​slots.

[0008] Furthermore, the plurality of snap-fit ​​protrusions include a first snap-fit ​​protrusion located on the top of the output electrode base, and second snap-fit ​​protrusions located at both ends of the output electrode base along the length direction of the end plate body; the plurality of snap-fit ​​slots include a first snap-fit ​​slot that snaps into the first snap-fit ​​protrusion, and a second snap-fit ​​slot that snaps into each of the second snap-fit ​​protrusions in a one-to-one correspondence.

[0009] Furthermore, the protective cover is provided with a first snap-fit ​​arm extending toward one side of the output electrode base, and the first snap-fit ​​groove is provided on the first snap-fit ​​arm; the limiting component includes a limiting groove provided on the top of the output electrode base, the limiting groove is arranged along the thickness direction of the end plate body, and the limiting groove allows the first snap-fit ​​arm to be inserted, thereby limiting the first snap-fit ​​arm in the length direction of the end plate body.

[0010] Furthermore, the end of the first latching arm away from the protective cover is provided with an outwardly bent operating part, and the operating part is supported by external operation, so that when the first latching arm moves away from the output electrode base, it can form a disengagement between the first latching slot and the first latching protrusion; and / or, each of the latching protrusions is provided with a guide surface, the guide surface being used to guide each of the latching protrusions to engage or disengage from the corresponding latching slot.

[0011] Furthermore, the limiting component includes a plurality of limiting walls disposed on the output electrode base, each of the limiting walls being located on the side of the output electrode base facing the protective cover; at least the top and both ends of the output electrode base are provided with the limiting walls to form an mounting groove for installing the output electrode busbar between the limiting walls, and each of the limiting walls abuts against the protective cover to limit the protective cover in the thickness direction of the end plate body.

[0012] Furthermore, the mounting slot has a first opening at one end of the output electrode base and a second opening at the bottom of the output electrode base. The first opening is for the output electrode busbar to be inserted, and the second opening is for the conductive connection bar connecting the two battery cell modules to be inserted.

[0013] Furthermore, the protective cover is provided with a plurality of second latching arms extending toward the output electrode base. Each second latching groove is correspondingly provided on each second latching arm, and each second latching arm has a limiting post on its inner sidewall. Each limiting post abuts against the bottom of the limiting wall at the same end, and the bottom of the first latching arm abuts against the limiting groove, thereby limiting the protective cover in the height direction of the end plate body. And / or, the inner sidewall of each second latching arm abuts against the outer sidewall of the limiting wall at the same end, thereby limiting the protective cover in the length direction of the end plate body.

[0014] Furthermore, the output electrode base is located at the end of the end plate body along its length, and side protective portions are provided at both ends of the protective cover along the length of the end plate body; the projected outline of the side protective portion at least partially overlaps with the projected outline of the module cover in the battery cell module along the length of the end plate body, so that the side protective portion can protect the output electrode bus located at the side corner of the battery cell module, and / or, each of the side protective portions is connected to the protective cover by a breakable connector, and the breakable connector can be disconnected from either the protective cover or the side protective portion under external force.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] (1) The module end plate of this utility model can eliminate the need for a separately set output electrode base by integrally forming the output electrode base and the end plate body, simplifying the number and types of parts in the module. The protective cover and the output electrode base are detachably connected to improve the module assembly efficiency. At the same time, by setting a limiting component to restrict the movement of the protective cover, the module's structural stability and performance can be improved on the basis of improving the module assembly efficiency, thereby improving the efficiency and quality of the battery production line.

[0017] (2) The protective cover and the output pole base are connected by a snap-fit ​​assembly, which facilitates the easy disassembly and assembly of the protective cover. The use of multiple snap-fit ​​protrusions and multiple slots simplifies the structure, reduces costs, and increases the snap-fit ​​stability of the protective cover.

[0018] (3) The first snap-fit ​​protrusion is located on the top of the output electrode base, and each of the second snap-fit ​​protrusions is located at both ends of the output electrode base along the length direction of the end plate body. This makes the line connecting the first snap-fit ​​protrusion and each of the second snap-fit ​​protrusions form a triangle, which in turn improves the snap-fit ​​stability between the protective cover and the output electrode base.

[0019] (4) The first snap-fit ​​arm and the limiting groove are used together to limit the first snap-fit ​​arm in the length direction of the end plate body, that is, to limit the top of the protective cover in the length direction of the end plate body, so as to restrict the movement of the protective cover relative to the output pole base.

[0020] (5) An operating section is provided to facilitate the assembly and disassembly of the first snap-fit ​​arm. At the same time, by providing a guide surface, the snap-fit ​​convenience between each snap-fit ​​protrusion and its corresponding snap-fit ​​slot can be improved.

[0021] (6) By setting the limiting walls at the top and both ends of the output electrode base, it is beneficial to form an installation groove. At the same time, each limiting wall abuts against the protective cover, which can also help prevent the protective cover from moving in the thickness direction of the end plate body, thereby improving the installation stability of the protective cover.

[0022] (7) The mounting slot has a first opening and a second opening, which facilitates the installation of the output stage bus and the assembly between two adjacent battery cell modules.

[0023] (8) Each limiting post abuts against the bottom of the limiting wall at the same end, and the bottom of the first locking arm abuts against the limiting groove, which can prevent the protective cover from moving in the height direction of the end plate body. At the same time, the inner side wall of each second locking arm abuts against the outer side arm of the limiting wall at the same end, which can also prevent the protective cover from moving in the length direction of the end plate body, thereby improving the reliability of the installation and use of the protective cover.

[0024] (9) Side protection sections are provided, and along the length of the end plate body, the projected outline of the side protection sections at least partially overlaps with the projected outline of the module cover in the battery cell module. This facilitates protection of the output busbar located at the side corner of the battery cell module, improving the protection effect of the output busbar. Simultaneously, each side protection section is connected to the protective cover via a detachable connector, allowing the side protection sections to be detached according to usage requirements, thus accommodating the installation and connection of more busbars.

[0025] This utility model also proposes a battery, including a cell module and module end plates as described above disposed at both ends of the cell module in the length direction.

[0026] The battery described in this utility model has the aforementioned module end plate, which has the same beneficial effects as traditional technology, and will not be described in detail here. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of the module end plate according to an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 This is a schematic diagram of the structure of the end plate body according to an embodiment of the present utility model;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the second snap-fit ​​protrusion described in an embodiment of the present invention;

[0033] Figures 6 to 8 These are schematic diagrams of the protective cover described in this utility model embodiment from different perspectives;

[0034] Figure 9 for Figure 8 Sectional view along the DD direction;

[0035] Figure 10 for Figure 9 Enlarged view of point C in the middle;

[0036] Figure 11 and Figure 12 These are schematic diagrams of the protective cover being disassembled and assembled according to different perspectives in an embodiment of this utility model.

[0037] Figure 13 This is a schematic diagram of the structure of the conductive connection bus and the output bus as described in the embodiment of this utility model.

[0038] Figure 14 This is a schematic diagram of the structure of the protective cover and module cover during assembly according to an embodiment of the present utility model;

[0039] Explanation of reference numerals in the attached figures:

[0040] 11. End plate main body;

[0041] 12. Output pole base; 120. Limiting groove; 121. Snap-fit ​​protrusion; 121a. First snap-fit ​​protrusion; 121b. Second snap-fit ​​protrusion; 1211. First guide surface; 1212. Second guide surface; 122. Limiting wall; 123. Mounting groove; 1231. First opening; 1232. Second opening;

[0042] 13. Protective cover; 131. Cover body; 132. First locking arm; 1321. First locking slot; 1322. Operating part; 133. Second locking arm; 1331. Second locking slot; 1332. Limiting post; 134. Side protection part; 135. Breakable connector; 1351. Root;

[0043] 20. Battery cell module;

[0044] 21. Individual battery cell; 22. Output busbar; 23. Module cover; 24. Conductive connection bar. Detailed Implementation

[0045] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0047] Furthermore, in the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0049] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0051] An embodiment of the first aspect of this utility model provides a module end plate disposed at the end of the cell module 20 in the length direction, which can simplify the structure of the output electrode assembly, reduce the use of parts, and thus help improve the module assembly efficiency and structural stability.

[0052] In the existing technology, the output electrode assembly has problems such as low assembly efficiency and weak installation and use stability of the base and protective cover 13, which is not conducive to improving the module assembly efficiency and module quality.

[0053] In view of this, in order to overcome the shortcomings of the prior art, the module end plate in this embodiment combines... Figures 1 to 14 As shown, the overall design includes an end plate body 11, an output electrode base 12 disposed on the end plate body 11, and a protective cover 13 disposed on the output electrode base 12. The protective cover 13 is used to protect the output electrode bus 22 installed on the output electrode base 12.

[0054] The output electrode base 12 is integrally formed with the end plate body 11. The protective cover 13 and the output electrode base 12 are detachably connected. A limiting component is provided between the protective cover 13 and the output electrode base 12. The limiting component is used to restrict the movement of the protective cover 13 relative to the output electrode base 12.

[0055] Therefore, by integrally molding the output electrode base 12 with the end plate body 11, the separately set output electrode base 12 can be eliminated, simplifying the number and types of components in the module. Furthermore, the protective cover 13 and the output electrode base 12 are detachably connected, which helps to improve the module assembly efficiency. At the same time, by setting a limiting component to restrict the movement of the protective cover 13, the structural stability and performance of the module can be improved on the basis of improving the module assembly efficiency, thereby benefiting the improvement of battery production line efficiency and quality.

[0056] Based on the above general introduction, specifically, the battery cell module 20 of this embodiment includes a battery cell group formed by stacking a plurality of individual battery cells 21 in sequence, the above-mentioned module end plates disposed at both ends in the length direction, and module top covers 23 disposed on both sides in the width direction. Meanwhile, the above-mentioned output electrode busbars 22 are preferably disposed on both sides in the width direction of the battery cell module 20 and located inside the module top cover 23 on the same side. The two ends of the output electrode busbars 22 along the length direction of the battery cell module 20 are bent and extended toward the end plate body 11 at the same end and installed on the corresponding output electrode base 12.

[0057] It should be noted that the direction-related descriptions in this embodiment are merely illustrative examples. In actual implementation, the direction descriptions in this embodiment vary depending on the orientation of the end plate body 11; that is, each direction in this embodiment refers to a relative coordinate system with the end plate body 11 as the reference. Moreover, in this embodiment, the length direction of the end plate body 11 is the width direction of the cell module 20, the height direction of the end plate body 11 is the height direction of the cell module 20, and the thickness direction of the end plate body 11 is the length direction of the cell module 20.

[0058] At this time, combined Figures 2 to 7As shown, in some exemplary embodiments, the protective cover 13 and the output electrode base 12 are connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a plurality of snap-fit ​​protrusions 121 provided on the output electrode base 12 and a plurality of snap-fit ​​slots provided on the protective cover 13, with each snap-fit ​​protrusion 121 snapping into a corresponding snap-fit ​​slot.

[0059] Understandably, the protective cover 13 and the output electrode base 12 are connected by a snap-fit ​​assembly, which facilitates the easy installation and removal of the protective cover. Furthermore, the use of multiple snap-fit ​​protrusions 121 and multiple slots simplifies the structure, reduces costs, and increases the snap-fit ​​stability of the protective cover 13.

[0060] In some exemplary embodiments, specifically in this embodiment, the plurality of snap-fit ​​protrusions 121 include a first snap-fit ​​protrusion 121a disposed on the top of the output electrode base 12, and second snap-fit ​​protrusions 121b disposed at both ends of the output electrode base 12 along the length direction of the end plate body 11. Simultaneously, the plurality of slots include a first slot 1321 that snaps into the first snap-fit ​​protrusion 121a, and a second slot 1331 that snaps into each of the second snap-fit ​​protrusions 121b in a one-to-one correspondence.

[0061] The first snap-fit ​​protrusion 121a is disposed on the top of the output electrode base 12, and each of the second snap-fit ​​protrusions 121b is disposed at both ends of the output electrode base 12 along the length direction of the end plate body 11. This makes the line connecting the first snap-fit ​​protrusion 121a and each of the second snap-fit ​​protrusions 121b form a triangle, which in turn improves the snap-fit ​​stability between the protective cover 13 and the output electrode base 12.

[0062] Of course, in the specific implementation of this embodiment, the number and arrangement of the snap-fit ​​protrusions 121 and the snap-fit ​​slots can be set and adjusted according to the actual snap-fit ​​requirements between the protective cover 13 and the output electrode base 12, in addition to the above-mentioned arrangement. For example, the first snap-fit ​​protrusion 121a on the top of the output electrode base 12 can be two that are spaced apart along the length of the end plate body 11, and the first snap-fit ​​slot 1321 can be set one-to-one with the first snap-fit ​​protrusion 121a. Alternatively, the second snap-fit ​​protrusion 121b on the end of the output electrode base 12 facing the end plate body 11 can be two that are spaced apart along the height of the end plate body 11, and each second snap-fit ​​protrusion 121b can be equipped with a corresponding second snap-fit ​​slot 1331, etc.

[0063] Furthermore, in some of the exemplary implementations, combined with Figure 2 , Figure 4 and Figure 6As shown, the protective cover 13 is provided with a first latching arm 132 extending towards the output electrode base 12, and a first latching groove 1321 is provided on the first latching arm 132. Furthermore, the limiting component includes a limiting groove 120 provided on the top of the output electrode base 12. The limiting groove 120 is arranged along the thickness direction of the end plate body 11, and the limiting groove 120 allows the first latching arm 132 to be inserted, thereby limiting the first latching arm 132 in the length direction of the end plate body 11.

[0064] By using the first snap-fit ​​arm 132 in conjunction with the limiting groove 120, the first snap-fit ​​arm 132 can be limited in the length direction of the end plate body 11, that is, the top of the protective cover 13 is limited in the length direction of the end plate body 11, so as to restrict the movement of the protective cover 13 relative to the output electrode base 12.

[0065] In some exemplary embodiments, the end of the first latching arm 132 away from the protective cover 13 is provided with an outwardly bent operating part 1322. The operating part 1322 is supported by external operation so that when the first latching arm 132 moves away from the output electrode base 12, it can form a disengagement between the first latching groove 1321 and the first latching protrusion 121a, so as to facilitate the disassembly and assembly of the first latching arm 132.

[0066] Meanwhile, in some of the exemplary implementations, such as Figure 4 and Figure 5 As shown, each snap-fit ​​protrusion 121 is provided with a guide surface, which is used to guide each snap-fit ​​protrusion 121 into or out of its corresponding slot. This improves the ease of engagement between each snap-fit ​​protrusion 121 and its corresponding slot.

[0067] In some exemplary embodiments, the second snap-fit ​​protrusion 121b is used as an example. Specifically, the second snap-fit ​​protrusion 121b has a first guide surface 1211 on both sides along the height direction of the end plate and a second guide surface 1212 on both sides along the thickness direction of the end plate. The first guide surface 1211 can preferably be configured as a slope or an arc surface, and the second guide surface 1212 can preferably be configured as a slope, so as to facilitate the second snap-fit ​​protrusion 121b to snap into or disengage from the second slot 1331.

[0068] Furthermore, in some of the exemplary implementations, combined with Figures 2 to 4As shown, the limiting assembly includes a plurality of limiting walls 122 disposed on the output electrode base 12, each limiting wall 122 being located on the side of the output electrode base 12 facing the protective cover 13. Simultaneously, at least the top and both ends of the output electrode base 12 are provided with limiting walls 122 to form a mounting groove 123 for mounting the output electrode busbar 22 between the limiting walls 122, and each limiting wall 122 abuts against the protective cover 13 to limit the protective cover 13 in the thickness direction of the end plate body 11.

[0069] Thus, by setting the limiting wall 122 at the top and both ends of the output electrode base 12, it is beneficial to form the mounting groove 123. At the same time, each limiting wall 122 abuts against the protective cover 13, which can also help prevent the protective cover 13 from moving in the thickness direction of the end plate body 11, thereby improving the installation stability of the protective cover 13.

[0070] In specific implementations, in some exemplary embodiments, the mounting slot 123 of this embodiment has a first opening 1231 at one end of the output electrode base 12 and a second opening 1232 at the bottom of the output electrode base 12. The first opening 1231 is for the output electrode busbar 22 to be inserted, and the second opening 1232 is for the conductive connection bar 24 connecting the two battery cell modules 20 to be inserted.

[0071] The mounting slot 123 has a first opening 1231 and a second opening 1232, which facilitates the installation of the output stage bus located on the side of the cell module 20, as well as the assembly between two adjacent cell modules 20. Specifically, as shown... Figure 13 As shown, the output bus 22 is inserted into the mounting slot 123 through the first opening 1231, and the conductive connector 24 is inserted into the mounting slot 123 through the second opening 1232, and is installed on the output base 12 together with the output bus 22 by bolts.

[0072] In some of the exemplary implementations, the combination continues Figure 4 , Figure 6 and Figure 7 As shown, the protective cover 13 is provided with multiple second latching arms 133 extending towards the output electrode base 12. Each second latching slot 1331 is correspondingly located on each second latching arm 133, and each second latching arm 133 has a limiting post 1332 on its inner sidewall. Furthermore, each limiting post 1332 abuts against the bottom of the limiting wall 122 at the same end, and the bottom of the first latching arm 132 abuts against the limiting slot 120, thereby limiting the protective cover 13 in the height direction of the end plate body 11. This arrangement prevents the protective cover 13 from moving in the height direction of the end plate body 11.

[0073] Meanwhile, in some exemplary embodiments, the inner wall of each second latching arm 133 abuts against the outer arm of the limiting wall 122 at the same end, thereby limiting the protective cover 13 in the length direction of the end plate body 11. The main advantage of this arrangement is that it can prevent the protective cover 13 from moving in the length direction of the end plate body 11, thereby improving the reliability of the installation and use of the protective cover 13.

[0074] In addition, combined Figures 6 to 10 As shown, in some exemplary embodiments, the output pole base 12 is located at the end of the end plate body 11 along the length direction, and the protective cover 13 has side protective portions 134 at both ends along the length direction of the end plate body 11.

[0075] Among them, see Figure 14 As shown, in the length direction of the end plate body 11, the projected outline of the side protection part 134 at least partially overlaps with the projected outline of the module cover 23 in the cell module 20, so that the side protection part 134 can protect the output electrode busbar 22 located at the side corner of the cell module 20.

[0076] It is understandable that by providing the side protection part 134 and ensuring that the projected outline of the side protection part 134 overlaps at least partially with the projected outline of the module cover 23 in the cell module 20 along the length of the end plate body 11, it is possible to form protection for the output bus 22 located at the side corner of the cell module 20 and improve the protection effect of the output bus 22.

[0077] In specific implementation, the protective cover 13 of this embodiment includes a cover body 131 with a cavity. The cover body 131 has an edge that surrounds the opening portion forming the cavity. The first latching arm 132 and each of the second latching arms 133 extend outward from the edge of the cover body 131. Meanwhile, as... Figure 8 As shown, the cross-section of the side protection part 134 can be arc-shaped so that the side of the side protection part 134 away from the cover body 131 extends to the output bus 22 and partially overlaps with the module cover 23, thereby improving the protection effect on the output bus 22.

[0078] Furthermore, in some exemplary embodiments, each side protection section 134 is connected to the protective cover 13 via a detachable connector 135, which can be disconnected from either the protective cover 13 or the side protection section 134 under external force. Thus, the side protection section 134 can be detached according to usage requirements to accommodate the installation and connection of more busbars.

[0079] In specific implementation, the number and arrangement of the aforementioned breakable connectors 135 can be set and adjusted according to the actual disassembly requirements of the side protection section 134. For example, they can be multiple connectors spaced apart along the height direction of the end plate body 11, and such as Figure 10 As shown, the cross-sectional area of ​​the root portion 1351 connecting each detachable connector 135 to the cover body 131 is smaller than the cross-sectional area of ​​the connection end connecting each detachable connector 135 to the side protection portion 134, so that the side protection portion 134 can be detached from the cover body 131.

[0080] In this embodiment, in some exemplary implementations, such as Figure 11 and Figure 12 As shown, the protective cover 13 can be repeatedly disassembled after installation, and the disassembly is convenient and simple, as detailed below.

[0081] First, engage the operating part 1322 of the first latching arm 132 on the protective cover 13, causing the first latching arm 132 to deform until the first latching groove 1321 disengages from the first latching protrusion 121a in the limiting groove 120. Next, continue to raise the first latching arm 132 of the protective cover 13 (or raise the top of the protective cover 13), causing the protective cover 13 to rotate around the contact points between each limiting post 1332 and the bottom of the corresponding limiting wall 122, until each of the second latching arms 133 of the protective cover 13 deforms, causing the second latching protrusion 121b to disengage from the corresponding second latching groove 1331, thereby disassembling the protective cover 13. When it is necessary to install the protective cover 13, simply reverse the above operations.

[0082] A second aspect of this utility model provides a battery, which includes a cell module 20 and module end plates disposed at both ends of the cell module 20 along its length.

[0083] The battery in this embodiment, by setting the module end plate described above, has the same beneficial effects as the traditional technology, and will not be described in detail here.

[0084] In some exemplary embodiments, in the battery cell module 20 of this embodiment, the output bus 22 is preferably arranged on both sides of the width direction of the battery cell module 20 to avoid occupying the arrangement space in the height direction of the battery cell module 20. The module end plate can be well adapted to the output bus 22 arranged on the side. The relevant description is as above and will not be repeated here.

[0085] The above descriptions are merely some embodiments of this utility model and are not intended to limit the utility model. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A module end plate, disposed at both ends along the length of a battery cell module, characterized in that: It includes an end plate body, an output electrode base disposed on the end plate body, and a protective cover disposed on the output electrode base, the protective cover being used to protect the output electrode bus installed on the output electrode base; The output electrode base is integrally formed with the end plate body. The protective cover and the output electrode base are detachably connected. A limiting component is provided between the protective cover and the output electrode base. The limiting component is used to restrict the movement of the protective cover relative to the output electrode base.

2. The module end plate according to claim 1, characterized in that: The protective cover and the output electrode base are connected by a snap-fit ​​assembly; The snap-fit ​​assembly includes multiple snap-fit ​​protrusions on the output electrode base and multiple snap-fit ​​slots on the protective cover, with each snap-fit ​​protrusion corresponding to and snapping into each of the snap-fit ​​slots.

3. The module end plate according to claim 2, characterized in that: The multiple snap-fit ​​protrusions include a first snap-fit ​​protrusion located on the top of the output electrode base, and second snap-fit ​​protrusions located at both ends of the output electrode base along the length direction of the end plate body. The plurality of slots include a first slot that engages with the first engaging protrusion, and a second slot that engages with each of the second engaging protrusions in a one-to-one correspondence.

4. The module end plate according to claim 3, characterized in that: The protective cover is provided with a first snap-fit ​​arm extending toward the output electrode base, and the first snap-fit ​​slot is provided on the first snap-fit ​​arm; The limiting component includes a limiting groove disposed on the top of the output electrode base. The limiting groove is arranged along the thickness direction of the end plate body, and the limiting groove allows the first snap-fit ​​arm to be inserted, thereby limiting the first snap-fit ​​arm in the length direction of the end plate body.

5. The module end plate according to claim 4, characterized in that: The end of the first snap-fit ​​arm away from the protective cover is provided with an outwardly bent operating part, and the operating part is supported by external operation so that when the first snap-fit ​​arm moves away from the output electrode base, it can form a disengagement between the first snap-fit ​​groove and the first snap-fit ​​protrusion. And / or, Each of the snap-fit ​​protrusions is provided with a guide surface, which is used to guide each of the snap-fit ​​protrusions to snap into or disengage from the corresponding snap-fit ​​slot.

6. The module end plate according to claim 3, characterized in that: The limiting component includes a plurality of limiting walls disposed on the output electrode base, each of the limiting walls being located on the side of the output electrode base facing the protective cover; The limiting walls are provided at least at the top and both ends of the output electrode base to form an installation groove for the output electrode busbar to be installed between the limiting walls, and each limiting wall abuts against the protective cover to limit the protective cover in the thickness direction of the end plate body.

7. The module end plate according to claim 6, characterized in that: The mounting slot has a first opening at one end of the output electrode base and a second opening at the bottom of the output electrode base. The first opening is for the output electrode busbar to be inserted, and the second opening is for the conductive connection bar connecting the two battery cell modules to be inserted.

8. The module end plate according to claim 6, characterized in that: The protective cover is provided with a plurality of second locking arms extending toward the output electrode base. Each second locking slot is correspondingly provided on each second locking arm, and each second locking arm is provided with a limiting post on its inner sidewall. Each of the limiting posts abuts against the bottom of the limiting wall at the same end, and the bottom of the first snap-fit ​​arm abuts against the limiting groove, thereby limiting the protective cover in the height direction of the end plate body. And / or, the inner sidewall of each of the second snap-fit ​​arms abuts against the outer sidewall of the limiting wall at the same end, thereby limiting the protective cover in the length direction of the end plate body.

9. The module end plate according to any one of claims 1 to 8, characterized in that: The output electrode base is located at the end of the end plate body along the length direction, and the protective cover has side protective parts at both ends along the length direction of the end plate body. Along the length of the end plate body, the projected outline of the side protection portion at least partially overlaps with the projected outline of the module cover in the battery cell module, so that the side protection portion can protect the output bus located at the corner of the side of the battery cell module, and / or, each of the side protection portions is connected to the protective cover by a breakable connector, which can be disconnected from either the protective cover or the side protection portion under external force.

10. A battery, characterized in that: It includes a battery cell module and module end plates as described in any one of claims 1 to 9 disposed at both ends of the battery cell module along its length.

Images