Battery pack disassembling and maintaining structure, battery shell and battery pack

Abstract

The utility model provides a battery pack disassembly maintenance structure, a battery shell and a battery pack. The battery pack disassembling and maintaining structure comprises a maintaining surface cover and a connector, a mounting opening is formed in the maintenance surface cover and is communicated with the interior of the battery shell main body; the connector comprises an outer frame and a guide connecting piece, and the outer frame and the guide connecting piece are fixedly connected with each other; the outer frame is arranged around the periphery of the guide connecting piece, and a dismounting edge part is arranged on the side, away from the guide connecting piece, of the outer frame; the outer frame is provided with a mounting opening, the connector is arranged at the mounting opening, part of the outer frame abuts against the mounting opening, and the dismounting edge part is detachably connected to the maintenance surface cover. According to the invention, only the connection between the maintenance surface cover and the single connector can be released by dismounting the dismounting edge part of the outer frame in the corresponding connector and the maintenance surface cover, and only the unmatched connector can be dismounted and replaced, so that the waste of the intact connector can be reduced.

Description

Technical Field

[0001] This disclosure relates to the technical field of power batteries, and in particular to a battery pack disassembly and maintenance structure, battery casing, and battery pack. Background Technology

[0002] In recent years, shared and battery swapping batteries have been increasingly widely used in two-wheeled electric vehicles used for food delivery and express delivery. Due to differences in models of two-wheeled electric vehicles from different manufacturers, the structure, number, or location of connectors such as charging ports, discharging ports, and communication ports on the vehicle body may vary. In such cases, the connectors of the battery pack need to be replaced to achieve compatibility. However, due to structural design reasons, battery packs such as those disclosed in Chinese patent document CN115441281A replace the connectors by replacing the base. This results in all connectors on the base being replaced, causing some intact connectors to be discarded and wasted. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a battery pack disassembly and maintenance structure, battery casing and battery pack that can be flexibly disassembled and assembled to adapt to different types of connectors.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A battery pack disassembly and maintenance structure includes a maintenance cover and a connector;

[0006] The maintenance cover is detachably installed at the inspection port of the battery casing body; the maintenance cover has an installation port that communicates with the interior of the battery casing body;

[0007] The connector includes an outer frame and a guide member, the outer frame and the guide member being fixedly connected to each other; the outer frame is arranged around the outer periphery of the guide member, and the outer frame has a detachable edge portion on the side away from the guide member;

[0008] The connector is located at the mounting port, a portion of the outer frame abuts against the mounting port, and the detachable edge is detachably connected to the maintenance cover; the guide is used to detachably connect to the charging and discharging port of the cell module inside the battery casing body to charge or discharge the cell module.

[0009] In some embodiments, the battery pack disassembly and maintenance structure further includes a connecting component, through which the disassembly / removal edge is locked to the maintenance cover.

[0010] In some embodiments, the connecting assembly includes an outer locking member and an inner locking member; the inner locking member is mounted on the maintenance cover, and the outer locking member is mounted on the disassembly edge, with the inner locking member and the outer locking member having a concave-convex fit.

[0011] In some embodiments, the inner locking member is disposed on the side of the maintenance cover away from the disassembly edge, and the outer locking member is disposed on the side of the disassembly edge away from the maintenance cover; a portion of the outer locking member penetrates the disassembly edge and the maintenance cover, and is screwed or snapped onto the inner wall of the inner locking member.

[0012] In some embodiments, the maintenance cover has a first connecting hole, and the disassembly edge has a second connecting hole; a portion of the inner locking member is embedded in the first connecting hole, and the inner cavity of the inner locking member communicates with the second connecting hole; a platform is formed on the peripheral wall of the inner locking member, and the platform presses against the side of the maintenance cover away from the disassembly edge; the outer locking member is disposed through the second connecting hole, and a portion of the outer locking member is engaged with the hole wall of the second connecting hole; another portion of the outer locking member is located in the inner cavity of the inner locking member and is threadedly connected to the inner cavity wall of the inner locking member.

[0013] In some embodiments, a portion of the outer frame extends away from the guide and forms the detachable edge; the detachable edge snaps onto the maintenance cover located at the edge of the mounting opening.

[0014] In some embodiments, the connector further includes a wire and a plug-in port, wherein a first end of the wire is fixedly connected to the conductor, and the plug-in port is fixedly installed on a second end of the wire; the plug-in port is used for plugging and unplugging into the charging and discharging port of the battery module.

[0015] In some embodiments, the battery pack disassembly and maintenance structure further includes a waterproof pad disposed along the edge of the maintenance cover; the waterproof pad is used to press against the battery housing body located at the edge of the access port to seal the access port.

[0016] A battery casing includes a battery casing body and a battery pack disassembly and maintenance structure according to any of the above embodiments; the battery casing body has an inspection port, and the battery casing body extends at the edge of the inspection port to form a support platform; a maintenance cover is disposed on the inspection port and presses against the support platform; the edge of the maintenance cover is connected to the support platform by threaded fasteners.

[0017] A battery pack includes a cell module and a battery casing according to any of the above embodiments; the cell module is disposed within the battery casing body, and the conductive member is detachably connected to the cell module.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] 1) Since the outer frame's detachable edge is detachably connected to the maintenance cover, and the conductor is detachably electrically connected to the charging and discharging port of the cell module inside the battery casing, when only part of the connector structure on the maintenance cover is incompatible with the connector structure on the two-wheeled electric vehicle, the connection between the maintenance cover and a single connector can be disconnected by removing the detachable edge of the outer frame of the corresponding connector from the maintenance cover. Only the incompatible connector can be disassembled and replaced, thereby reducing the waste of intact connectors.

[0020] 2) Since the maintenance cover is detachably installed at the inspection port of the battery casing, when the number or position of the connectors on the maintenance cover does not match the number or position of the connectors on the two-wheeled electric vehicle, the maintenance cover can be removed from the inspection port of the battery casing and replaced with a maintenance cover whose number or position matches the number or position of the connectors on the two-wheeled electric vehicle. Furthermore, the intact connectors on the original maintenance cover can be disassembled one by one and reinstalled on the new maintenance cover for continued use, thereby reducing the occurrence of intact connectors being discarded and wasted. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of a battery pack disassembly and maintenance structure according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 The exploded view of the battery pack disassembly and maintenance structure is shown below;

[0024] Figure 3 for Figure 1 The enlarged view shown at point A in the middle;

[0025] Figure 4 for Figure 1 A schematic diagram of the back of the maintenance cover of the battery pack disassembly and maintenance structure shown;

[0026] Figure 5 This is a schematic diagram of the structure of a battery pack according to another embodiment of the present disclosure.

[0027] Figure label:

[0028] 10. Battery casing;

[0029] 100. Battery pack disassembly and maintenance structure;

[0030] 110. Maintenance cover; 1101. Mounting port; 1102. First connection hole;

[0031] 120. Connector; 1210. Outer frame; 1211. Detachable edge; 1201. Second connection hole; 1220. Guide; 1230. Wire; 1240. Plug-in port;

[0032] 130. Connecting component; 1310. External locking component; 1320. Internal locking component; 1321. Platform;

[0033] 140. Waterproof mat;

[0034] 200. Battery casing body; 210. Inspection port; 2110. Support platform;

[0035] 310. Charging / discharging port. Detailed Implementation

[0036] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0040] Please refer to the following: Figure 1 and Figure 2 One embodiment of the battery pack disassembly and maintenance structure 100 includes a maintenance cover 110 and a connector 120; the maintenance cover 110 is detachably installed at the inspection port 210 of the battery casing body 200; the maintenance cover 110 has an installation port 1101, which communicates with the interior of the battery casing body 200; the connector 120 includes an outer frame 1210 and a guide member 1220, the outer frame 1210 and the guide member 1220 being fixedly connected to each other; the outer frame... 1210 is arranged around the outer periphery of the conductor 1220. The outer frame 1210 has a detachable edge portion 1211 on the side away from the conductor 1220. The connector 120 is disposed at the mounting port 1101. A portion of the outer frame 1210 abuts against the mounting port 1101. The detachable edge portion 1211 is detachably connected to the maintenance cover 110. The conductor 1220 is used to detachably connect to the charging and discharging port of the cell module inside the battery casing body to charge or discharge the cell module.

[0041] It is understandable that, since the detachable edge 1211 of the outer frame 1210 is detachably connected to the maintenance cover 110, and the conductor 1220 is detachably electrically connected to the charging and discharging port of the cell module inside the battery casing 200, when only part of the connector 120 on the maintenance cover 110 is incompatible with the structure of the connector 120 on the two-wheeled electric vehicle, the connection between the maintenance cover 110 and a single connector 120 can be disconnected by disassembling the detachable edge 1211 of the outer frame 1210 and the maintenance cover 110. Only the incompatible connector 120 can be disassembled and replaced, thereby reducing the occurrence of intact connectors 120 being discarded and wasted.

[0042] It is understandable that, since the maintenance cover 110 is detachably installed at the inspection port 210 of the battery housing body 200, when the number or position of the connectors 120 on the maintenance cover 110 does not match the number or position of the connectors 120 on the two-wheeled electric vehicle, the maintenance cover 110 can be removed from the inspection port 210 of the battery housing body 200, thereby replacing the maintenance cover 110 with a number or position of the mounting port 1101 that matches the number or position of the connectors 120 on the two-wheeled electric vehicle. Furthermore, the intact connectors 120 on the original maintenance cover 110 can also be disassembled one by one and reinstalled on the new maintenance cover 110 for continued use, thereby reducing the occurrence of intact connectors 120 being discarded and wasted.

[0043] In one embodiment, the maintenance cover 110 has at least two mounting ports 1101; the number of connectors 120 is at least two, and the connectors 120 are at least one of a charging connector, a discharging connector, or a communication connector. See also... Figure 1 In this embodiment, the maintenance cover 110 has two mounting ports 1101. A charging connector can be detachably installed at one mounting port 1101, and a discharging connector can be detachably installed at the other mounting port 1101. The battery pack can be charged through the charging connector, and the two-wheeled electric vehicle can be powered by plugging into the connector on the two-wheeled electric vehicle through the discharging connector.

[0044] Please see Figure 1 In some embodiments, the battery pack disassembly and maintenance structure 100 further includes a connecting assembly 130, through which the disassembly edge 1211 is locked to the maintenance cover 110. It is understood that locking the disassembly edge 1211 and the maintenance cover 110 together via the connecting assembly 130 ensures a tight fit, reducing the likelihood of loosening of the connector 120 during insertion and removal from the vehicle body. Simultaneously, releasing the lock between the connecting assemblies 130 allows the disassembly edge 1211 to separate from the maintenance cover 110 for easier disassembly. Specifically, the connecting assembly 130 may consist of bolts and nuts, or screws and threaded sleeves; however, this is not limited, and those skilled in the art can make other selections as needed.

[0045] Please see Figure 3 In some embodiments, the connecting assembly 130 includes an outer locking member 1310 and an inner locking member 1320; the inner locking member 1320 is mounted on the maintenance cover 110, and the outer locking member 1310 is mounted on the disassembly edge portion 1211, with the inner locking member 1320 and the outer locking member 1310 having a concave-convex fit. It can be understood that because the inner locking member 1320 mounted on the maintenance cover 110 and the outer locking member 1310 mounted on the disassembly edge portion 1211 have a concave-convex fit, for example, a portion of the inner locking member 1320 protrudes into the outer locking member 1310, the interference between the portion of the inner locking member 1320 protruding into the outer locking member 1310 and the inner wall of the outer locking member 1310 can further prevent loosening of the inner locking member 1320 and the outer locking member 1310 in the horizontal direction, thereby fixing the disassembly edge portion 1211 and the maintenance cover 110 in a horizontally fixed position. Alternatively, a portion of the outer locking member 1310 may protrude into the inner locking member 1320. The interference between the portion of the outer locking member 1310 protruding into the inner locking member 1320 and the inner wall of the inner locking member 1320 can further prevent the inner locking member 1320 and the outer locking member 1310 from loosening in the horizontal direction, so that the disassembly edge 1211 and the maintenance cover 110 are relatively fixed in the horizontal direction.

[0046] Please see Figure 3 In some embodiments, the inner locking member 1320 is disposed on the side of the maintenance cover 110 away from the disassembly edge 1211, and the outer locking member 1310 is disposed on the side of the disassembly edge 1211 away from the maintenance cover 110; a portion of the outer locking member 1310 penetrates the disassembly edge 1211 and the maintenance cover 110, and is screwed or snapped onto the inner wall of the inner locking member 1320. It can be understood that since a portion of the outer locking member 1310 disposed on the side of the disassembly edge 1211 away from the maintenance cover 110 penetrates the disassembly edge 1211 and the maintenance cover 110 and is screwed onto the inner wall of the inner locking member 1320 disposed on the side of the maintenance cover 110 away from the disassembly edge 1211, or a portion of the outer locking member 1310 disposed on the side of the disassembly edge 1211 away from the maintenance cover 110 penetrates the disassembly edge 1211 and the maintenance cover 110, the inner locking member 1320 is disposed on the side of the maintenance cover 110 away from the disassembly edge 1211. The faceplate 110 is snapped onto the inner wall of the inner locking member 1320 located on the side of the maintenance faceplate 110 away from the disassembly edge 1211, thereby enabling the inner locking member 1320 and the outer locking member 1310 to lock together. The inner locking member 1320 presses against the maintenance faceplate 110, and the outer locking member 1310 presses against the disassembly edge 1211, so that the disassembly edge 1211 and the maintenance faceplate 110 can move closer together under pressure, and finally be connected more tightly.

[0047] Please refer to the following: Figure 2 and Figure 3In some embodiments, the maintenance cover 110 has a first connecting hole 1102, and the disassembly edge 1211 has a second connecting hole 1201; a portion of the inner locking member 1320 is embedded in the first connecting hole 1102, and the inner cavity of the inner locking member 1320 communicates with the second connecting hole 1201; abutment 1321 is formed protruding on the outer peripheral wall of the inner locking member 1320, and abutment 1321 presses against the side of the maintenance cover 110 away from the disassembly edge 1211; an outer locking member 1310 is disposed through the second connecting hole 1201, and a portion of the outer locking member 1310 is engaged with the hole wall of the second connecting hole 1201; another portion of the outer locking member 1310 is located in the inner cavity of the inner locking member 1320 and is threadedly connected to the inner cavity wall of the inner locking member 1320. It is understood that, since the abutment 1321 formed on the outer peripheral wall of the inner locking member 1320 presses against the side of the maintenance cover 110 away from the disassembly edge 1211, after the outer locking member 1310 passes through the second connecting hole 1201, by making a part of the outer locking member 1310 engage with the hole wall of the second connecting hole 1201 and making the other part of the outer locking member 1310 threadedly connected to the inner cavity wall of the inner locking member 1320, it is possible to lock the maintenance cover 110 and the disassembly edge 1211 by turning the outer locking member 1310, or to unlock the maintenance cover 110 and the disassembly edge 1211 by turning the outer locking member 1310 to facilitate the disassembly and replacement of the connector 120. In this embodiment, the inner locking member 1320 is a threaded sleeve and the outer locking member 1310 is a screw. Of course, this is not limited, and those skilled in the art can make other choices as needed.

[0048] Please see Figure 1 In some embodiments, a portion of the outer frame 1210 extends away from the guide member 1220 and forms a removable edge 1211; the removable edge 1211 snaps onto the maintenance cover 110 located at the edge of the mounting opening 1101. It is understood that because the removable edge 1211 snaps onto the maintenance cover 110 located at the edge of the mounting opening 1101, the edge of the mounting opening 1101 can be sealed by the removable edge 1211, thereby preventing water leakage from the mounting opening 1101.

[0049] Please see Figure 2In some embodiments, the connector 120 further includes a wire 1230 and a plug-in port 1240. The first end of the wire 1230 is fixedly connected to the conductor 1220, and the plug-in port 1240 is fixedly mounted on the second end of the wire 1230. The plug-in port 1240 is used for plugging and unplugging into the charging / discharging port 310 of the battery cell module. It can be understood that because the first end of the wire 1230 is fixedly connected to the conductor 1220, the plug-in port 1240 on the second end of the wire 1230 can more flexibly pull the wire 1230 according to the position of the battery cell module within the battery casing 200, thereby allowing the plug-in port 1240 to be plugged and unplugged into the charging / discharging port 310 of the battery cell module. In this way, not only can the battery cell module be electrically connected to the conductor 1220, but the plug-in port 1240 and the charging / discharging port 310 can also be quickly disassembled.

[0050] Please see Figure 4 In some embodiments, the battery pack disassembly and maintenance structure 100 further includes a waterproof pad 140 disposed along the edge of the maintenance cover 110. The waterproof pad 140 is used to press against the battery casing body 200 located at the edge of the access port 210 to seal the access port 210. It can be understood that, since the waterproof pad 140 is disposed along the edge of the maintenance cover 110, when the maintenance cover 110 is installed at the access port 210 of the battery casing body 200, the access port 210 can be sealed by the waterproof pad 140 pressing against the battery casing body 200 located at the edge of the access port 210, thereby further improving the waterproof performance of the battery pack.

[0051] Please see Figure 5 This disclosure also provides a battery casing 10, including a battery casing body 200 and a battery pack disassembly and maintenance structure 100 of any of the above embodiments; the battery casing body 200 has an access port 210, and the battery casing body 200 extends at the edge of the access port 210 to form a support platform 2110; a maintenance cover 110 is placed over the access port 210 and presses against the support platform 2110; the edge of the maintenance cover 110 is connected to the support platform 2110 by threaded fasteners. It can be understood that since the edge of the maintenance cover 110 is connected to the support platform 2110 by threaded fasteners, the support platform 2110 can support the maintenance cover 110 flat, and the edge of the maintenance cover 110 can be pressed against the support platform 2110 by tightening the threaded fasteners, thereby allowing the maintenance cover 110 to be securely installed at the access port 210, or the maintenance cover 110 can be separated from the support platform 2110 by tightening the threaded fasteners for easy disassembly and replacement.

[0052] Please see Figure 5This disclosure also provides a battery pack, including a cell module and a battery casing 10 of any of the above embodiments; the cell module is disposed within the battery casing body 200, and the conductor 1220 is detachably connected to the cell module. It can be understood that by applying the battery casing 10 of this disclosure to a battery pack, since the detachable edge 1211 of the outer frame 1210 is detachably connected to the maintenance cover 110, and the conductor 1220 is detachably connected to the cell module within the battery casing body 200, when only a portion of the connector 120 on the maintenance cover 110 is incompatible with the structure of the connector 120 on the two-wheeled electric vehicle, the connection between the maintenance cover 110 and a single connector 120 can be disconnected by disassembling the detachable edge 1211 of the outer frame 1210 and the maintenance cover 110. This allows for the replacement of only the incompatible connector 120, thereby reducing the waste of intact connectors 120.

[0053] Compared with the prior art, this disclosure has at least the following advantages:

[0054] 1) Since the detachable edge 1211 of the outer frame 1210 is detachably connected to the maintenance cover 110, and the conductor 1220 is detachably connected to the cell module inside the battery casing 200, when only part of the connector 120 on the maintenance cover 110 is not compatible with the structure of the connector 120 on the two-wheeled electric vehicle, the connection between the maintenance cover 110 and a single connector 120 can be disconnected by removing the detachable edge 1211 of the outer frame 1210 and the maintenance cover 110. Only the incompatible connector 120 can be disassembled and replaced, thereby reducing the occurrence of intact connectors 120 being discarded and wasted.

[0055] 2) Since the maintenance cover 110 is detachably installed at the inspection port 210 of the battery housing body 200, when the number or position of the connectors 120 on the maintenance cover 110 is not compatible with the number or position of the connectors 120 on the two-wheeled electric vehicle, the maintenance cover 110 can be removed from the inspection port 210 of the battery housing body 200, thereby replacing the maintenance cover 110 with a number or position of the mounting port 1101 that is compatible with the number or position of the connectors 120 on the two-wheeled electric vehicle. Furthermore, the intact connectors 120 on the original maintenance cover 110 can also be disassembled one by one and reinstalled on the new maintenance cover 110 for continued use, thereby reducing the occurrence of intact connectors 120 being discarded and wasted.

[0056] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A battery pack disassembly maintenance structure characterized by comprising: The maintenance cover and the connector are included; The maintenance cover is used for detachable installation at the access hole of the battery shell body; the maintenance cover is provided with a mounting hole, and the mounting hole is communicated with the inside of the battery shell body; The connector includes an outer frame and a lead connector, the outer frame and the lead connector are fixedly connected with each other; the outer frame is arranged around the outer periphery of the lead connector, and the outer frame is provided with a dismounting edge portion on the side away from the lead connector; The connector is arranged at the mounting hole, part of the outer frame abuts against the mounting hole, and the dismounting edge portion is detachably connected with the maintenance cover; the lead connector is used for detachable electrical connection with the charging and discharging port of the battery cell module in the battery shell body, so as to charge or discharge the battery cell module.

2. The battery pack disassembly maintenance structure according to claim 1, characterized by, The battery pack disassembly and maintenance structure further includes a connecting assembly, and the dismounting edge portion is locked and matched with the maintenance cover through the connecting assembly.

3. The battery pack disassembly maintenance structure according to claim 2, characterized by, The connecting assembly includes an outer lock and an inner lock; the inner lock is installed on the maintenance cover, the outer lock is installed on the dismounting edge portion, and the inner lock and the outer lock are concave-convex matched.

4. The battery pack disassembly maintenance structure according to claim 3, characterized by, The inner lock is arranged on the side of the maintenance cover away from the dismounting edge portion, and the outer lock is arranged on the side of the dismounting edge portion away from the maintenance cover; part of the outer lock penetrates the dismounting edge portion and the maintenance cover, and is screwed or clamped to the inner wall of the inner lock.

5. The battery pack disassembly maintenance structure according to claim 3, characterized by, First connecting holes are formed in the maintenance cover, and second connecting holes are formed in the dismounting edge portion; part of the inner lock is embedded in the first connecting hole, and the inner cavity of the inner lock is communicated with the second connecting hole; a resisting table is formed on the peripheral wall of the inner lock; the resisting table is pressed on the side of the maintenance cover away from the dismounting edge portion; the outer lock penetrates the second connecting hole, and part of the outer lock is clamped to the hole wall of the second connecting hole; the other part of the outer lock is located in the inner cavity of the inner lock and is screwed to the inner cavity wall of the inner lock.

6. The battery pack disassembly maintenance structure according to claim 1, characterized by, Part of the outer frame extends away from the lead connector and forms the dismounting edge portion; the dismounting edge portion is clamped on the maintenance cover at the edge of the mounting hole.

7. The battery pack disassembly maintenance structure according to claim 1, characterized by, The connector further includes a wire and a plug-in port; the first end of the wire is fixedly connected with the lead connector, and the plug-in port is fixedly installed on the second end of the wire; the plug-in port is used for plug-in connection with the charging and discharging port of the battery cell module.

8. The battery pack disassembly maintenance structure according to claim 1, characterized by, The battery pack disassembly and maintenance structure further includes a waterproof pad arranged along the edge of the maintenance cover; the waterproof pad is used for pressing on the battery shell body at the edge of the access hole to seal the access hole.

9. A battery housing, characterized by The battery pack disassembly and maintenance structure of any one of claims 1 to 8 is included in a battery shell body, an inspection opening is formed in the battery shell body, the battery shell body extends at the edge of the inspection opening and forms a supporting platform, a maintenance surface cover is arranged at the inspection opening and is pressed on the supporting platform, and the edge of the maintenance surface cover is connected to the supporting platform through a threaded fastener.

10. A battery pack, characterized by, The battery shell of claim 9 includes a battery cell module, the battery cell module is arranged in the battery shell body, and the lead connector is detachably connected to the battery cell module.

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