CN218351646U

CN218351646U - Battery pack

Info

Publication number: CN218351646U
Application number: CN202222789767.XU
Authority: CN
Inventors: 徐庆涛; 伍芝英; 王庆超; 孙飞
Original assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-20
Anticipated expiration: 2032-10-21

Abstract

A battery pack relates to the technical field of power batteries. The battery pack comprises a box body, a first connecting piece fixedly arranged on the box body, a cover body covering the box body and a second connecting piece detachably connected to the cover body, wherein the second connecting piece is connected with the first connecting piece in a clamping mode, so that the cover body is connected with the box body in a clamping mode. This battery package can be convenient for install and dismantle to improve battery package's dismouting efficiency.

Description

Battery pack

Technical Field

The utility model relates to a power battery technical field particularly, relates to a battery pack.

Background

With the rapid development of social economy and the continuous improvement of living standard of people, new energy automobiles gradually move to thousands of households, the new energy automobile industry begins to develop rapidly, and various automobile types emerge endlessly to meet the use requirements of different consumers. The battery pack is the most important component of a new energy automobile, and generally comprises a box body, a cover body covering the box body and a plurality of battery modules arranged in the box body.

The existing cover body and the box body are usually connected through bolts, namely, the cover body and the box body are respectively and correspondingly provided with mounting holes, and the bolts sequentially penetrate through the mounting holes in the cover body and the box body to be connected with nuts. In order to ensure the stability of the connection between the cover and the case, 30 to 60 matched bolts and nuts are usually required for one battery pack, and because the number of the bolts and the nuts is large, the time and the labor are extremely consumed in the actual assembly process, and the assembly and disassembly efficiency is affected. In addition, because the service life of the bolt and the nut is limited, generally about 5 times, in the actual assembly process, the bolt often generates the thread slipping phenomenon, the bolt after thread slipping is clamped in the nut, the longer time is needed for processing, and the assembly and disassembly efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery package can be convenient for install and dismantle to improve the dismouting efficiency of battery package.

The embodiment of the utility model is realized like this:

an embodiment of the utility model provides a battery pack, including box, fixed set up in first connecting piece, lid on the box fit lid on the box and can dismantle connect in second connecting piece on the lid, the second connecting piece with first connecting piece joint is fixed, so that the lid with the box joint is fixed. The battery pack can be conveniently mounted and dismounted, so that the mounting and dismounting efficiency of the battery pack is improved.

Optionally, the first connecting piece includes a first connecting block having a first groove, a clamping table is disposed on a side wall of the first groove, the second connecting piece includes a second connecting block, a shift lever is disposed on the second connecting block, and the second connecting block can be inserted into the first groove, so that the shift lever is clamped and fixed with the clamping table.

Optionally, a second groove is formed in the second connecting block, two adjacent side walls of the second groove are provided with openings, the shifting rod is arranged at one opening of the second groove, a gap is formed between the shifting rod and any one side wall of the second groove, a protruding block is arranged on one side, opposite to the shifting rod, of the shifting rod, away from the second groove, and the protruding block is used for being clamped with the clamping table.

Optionally, one end of the shifting lever is fixedly connected with the bottom of the second groove, and the other end of the shifting lever extends towards one side far away from the bottom of the second groove.

Optionally, the first connecting piece further comprises a connecting plate, the connecting plate is arranged around the periphery of the first connecting block, and the first connecting block is fixedly connected with the box body through the connecting plate.

Optionally, a mounting groove is formed in the side wall of the box body, and the mounting groove is matched with the first connecting piece, so that the first connecting piece is accommodated in the mounting groove.

Optionally, the second connecting piece further comprises a U-shaped connecting plate, the first folding arm and the second folding arm of the U-shaped connecting plate both extend from the side, opposite to the shift lever, of the second connecting block toward the side far away from the shift lever, the first folding arm and the second folding arm of the U-shaped connecting plate are connected with the connecting arm of the U-shaped connecting plate at the side far away from the shift lever, a penetrating port of the U-shaped connecting plate is formed at the side, close to the shift lever, of the first folding arm and the second folding arm of the U-shaped connecting plate, and the cover body is clamped in a working area formed by the first folding arm, the second folding arm and the connecting arm of the U-shaped connecting plate through the penetrating port of the U-shaped connecting plate.

Optionally, one end, away from the second groove bottom of the second connecting block, of the shifting lever protrudes out of one side, away from the first folding arm, of the second folding arm of the U-shaped connecting plate, the second folding arm of the U-shaped connecting plate corresponds to the shifting lever and is provided with a first avoidance hole, and the cover body corresponds to the shifting lever and is provided with a second avoidance hole.

Optionally, the interval is provided with two joint holes on the lid, the second of U-shaped connecting plate is folded one side interval that the arm is close to first folding arm and is provided with two joint buckles, two the joint is buckled with two the joint hole corresponds the joint.

Optionally, the first connecting pieces and the second connecting pieces each include a plurality of pieces, the plurality of first connecting pieces are distributed at intervals along the periphery of the box body, and the plurality of second connecting pieces are distributed at intervals along the periphery of the cover body.

Optionally, the cover body is provided with at least two positioning holes, the box body is provided with at least two positioning pins, and the positioning pins are accommodated in the positioning holes in a limiting manner so as to position and mount the second connecting piece and the first connecting piece.

Optionally, a containing groove is formed in the box body, the containing groove is formed in a surrounding mode along the periphery of the box body, and a sealing element is arranged in the containing groove.

The utility model discloses beneficial effect includes:

the battery pack comprises a box body, a first connecting piece fixedly arranged on the box body, a cover body covering the box body and a second connecting piece detachably connected to the cover body, wherein the second connecting piece is connected with the first connecting piece in a clamping mode, so that the cover body is connected with the box body in a clamping mode. In actual installation, can be earlier with first connecting piece fixed connection on the box, the connection can be dismantled on the lid to the second connecting piece, then is connected second connecting piece and first connecting piece, can accomplish the installation operation to lid and box, otherwise, only needs to remove second connecting piece and first connecting piece to be connected, can accomplish the dismantlement operation to lid and box. Foretell installation operation and dismantlement operation have simple and convenient, need not with the help of the advantage of instrument, compare in the battery package among the prior art and adopt bolt and nut complex connected mode, and the battery package that this application provided can be convenient for install and dismantle to improve the dismouting efficiency of battery package.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a box body and a first connecting piece according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of a cover and a second connecting member according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

fig. 6 is a schematic structural diagram of a first connecting member and a second connecting member according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a battery pack according to an embodiment of the present invention.

Icon: 100-a battery pack; 10-a box body; 11-a hollow structure; 12-mounting grooves; 13-a seal; 14-a locating pin; 15-accommodating the tank; 20-a first connector; 21-a first connection block; 211-a first recess; 212-a snap-fit station; 22-a connecting plate; 30-a cover body; 31-a second avoidance hole; 32-a snap-in hole; 33-positioning holes; 40-a second connector; 41-a second connecting block; 411-a second groove; 412-a deflector rod; 413-bumps; 42-U-shaped connecting plates; 421-a first avoidance hole; 422-first folding arm; 423-second folding arm; 423 a-snap fastener; 424-linking arm.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, an embodiment of the present disclosure provides a battery pack 100, which includes a case 10, a first connecting member 20 fixedly disposed on the case 10, a cover 30 covering the case 10, and a second connecting member 40 detachably connected to the cover 30, wherein the second connecting member 40 is fixed to the first connecting member 20 in a clamping manner, so that the cover 30 is fixed to the case 10 in a clamping manner. The battery pack 100 can be easily mounted and dismounted, thereby improving the efficiency of mounting and dismounting the battery pack 100.

In the actual installation process, as shown in fig. 2 and 3, the first connecting member 20 may be fixedly connected to the box 10, as shown in fig. 4 and 5, the second connecting member 40 may be detachably connected to the cover 30, as shown in fig. 6 and 7, and then the second connecting member 40 is connected to the first connecting member 20, as shown in fig. 1, the installation operation of the cover 30 and the box 10 may be completed, otherwise, the disassembly operation of the cover 30 and the box 10 may be completed only by disconnecting the second connecting member 40 from the first connecting member 20. Foretell installation operation and dismantlement operation have simple and convenient, need not the advantage with the help of the instrument, compare in the battery package among the prior art and adopt bolt and nut complex connected mode, the battery package 100 that this application provided can be convenient for install and dismantle to improve battery package 100's dismouting efficiency.

Specifically, as shown in fig. 6 and 7, in the present embodiment, the first connecting member 20 includes a first connecting block 21 having a first groove 211, a clamping platform 212 is disposed on a side wall of the first groove 211, the second connecting member 40 includes a second connecting block 41, a shift lever 412 is disposed on the second connecting block 41, and the second connecting block 41 can be inserted into the first groove 211, so that the shift lever 412 is clamped and fixed with the clamping platform 212.

In the actual installation process, as shown in fig. 7, since the clamping table 212 is disposed on the side wall of the first groove 211, when the driving lever 412 deforms toward the side close to the second groove 411, the second connecting block 41 can be accommodated in the first groove 211, and when the driving lever 412 resets toward the side away from the second groove 411, the driving lever 412 can be clamped and fixed with the clamping table 212, so that the second connecting block 41 is clamped and fixed with the first connecting block 21, and the cover 30 is clamped and fixed with the box 10. In the actual disassembling process, the driving lever 412 is driven to deform toward the side close to the second groove 411, so that the driving lever 412 is disengaged from the clamping table 212, and then the second connecting block 41 is pulled out from the first groove 211 through the driving lever 412, so that the cover 30 and the box 10 are disengaged from each other, and therefore the cover 30 can be easily taken down from the box 10, and the disassembling operation of the cover 30 and the box 10 is completed.

As shown in fig. 6 and 7, a second groove 411 is disposed on the second connecting block 41, two adjacent sidewalls of the second groove 411 have openings, a shift lever 412 is disposed at one of the openings of the second groove 411, a gap is formed between the shift lever 412 and any one sidewall of the second groove 411, a protrusion 413 is disposed on a side of the shift lever 412 opposite to the shift lever 412 away from the second groove 411, and the protrusion 413 is used for being clamped with the clamping table 212.

It should be noted that, as shown in fig. 6 and fig. 7, a second groove 411 and a shift lever 412 are disposed on the second connecting block 41, wherein two adjacent side walls of the second groove 411 have openings, the shift lever 412 is disposed at one of the openings of the second groove 411, and a gap is formed between an outer wall of the shift lever 412 and any one of the side walls of the second groove 411, so that the shift lever 412 can move in the second groove 411 when being driven to deform. Regarding the actual size of the gap between the outer wall of the shift lever 412 and the corresponding side wall of the second recess 411, those skilled in the art should be able to make reasonable selection and design according to practical situations, and is not limited in particular here.

It should be noted that, as shown in fig. 7, a distance between the shift lever 412 and a side of the second connecting block 41 away from the shift lever 412 should be equal to or less than a distance between the clamping platform 212 and a side of the first groove 211 away from the clamping platform 212, and a distance between a tip of the protrusion 413 and a side of the second connecting block 41 away from the shift lever 412 should be greater than a distance between the clamping platform 212 and a side of the first groove 211 away from the clamping platform 212 and less than a distance between a side wall of the first groove 211 where the clamping platform 212 is disposed and another side wall of the opposite first groove 211, so that when the driving shift lever 412 deforms toward the side close to the second groove 411, the shift lever 412 can drive the protrusion 413 to move toward the side close to the second groove 411, so that the second connecting block 41 can be smoothly accommodated in the first groove 211 without being affected by the protrusion 413, and when the driving shift lever 412 is reset toward the side away from the second groove 411, the shift lever 412 can drive the protrusion 413 to reset together, so that the protrusion 413 can be clamped and fixed to the clamping platform 212 to achieve locking.

As shown in fig. 6 and 7, in the present embodiment, when the shift lever 412 is reset toward the side away from the second groove 411, the side of the shift lever 412 away from the second groove 411 is flush with the side wall of the second connection block 41, and the protrusion 413 protrudes from the side wall of the second connection block 41. In other words, when the shift lever 412 is reset toward the side away from the second groove 411, the distance between the shift lever 412 and the side of the second connecting block 41 away from the shift lever 412 is equal to the distance between the side wall of the second connecting block 41 on the same side as the shift lever 412 and the side wall of the opposite second connecting block 41 (i.e., the side of the second connecting block 41 away from the shift lever 412), and the distance between the tip of the protrusion 413 and the side of the second connecting block 41 away from the shift lever 412 is greater than the distance between the side wall of the second connecting block 41 on the same side as the shift lever 412 and the side wall of the opposite second connecting block 41 (i.e., the side of the second connecting block 41 away from the shift lever 412), so as to improve the sealing performance between the cover 30 and the box 10 on the basis of ensuring that the second connecting block 41 can be smoothly accommodated in the first groove 211 without being affected by the protrusion 413 and the protrusion 413 can be locked by being clamped and fixed to the clamping platform 212.

As shown in fig. 6 and 7, in the present embodiment, one end (i.e., the fixed end) of the lever 412 is fixedly connected to the bottom of the second groove 411, and the other end (i.e., the free end) of the lever 412 extends toward a side away from the bottom of the second groove 411, so that an operator can easily control the free end of the lever 412 to deform the lever 412, and at the same time, the operator can easily pull the second connection block 41 out of the first groove 211 through the free end of the lever 412. Regarding the specific length of the free end of the shift lever 412 protruding out of the top of the second groove 411, those skilled in the art should be able to make a reasonable choice and design according to practical situations, and is not limited in particular here. It should be understood that the actual length of the free end of the shift lever 412 extending beyond the top of the second recess 411 cannot be too short, so as to avoid the inconvenience of exerting an external force on the free end of the shift lever 412 when the operator pulls the second connecting block 41 out of the first recess 211 through the free end of the shift lever 412; the actual length of the free end of the lever 412 extending out of the top of the second recess 411 cannot be too long, so as to avoid the increase of the installation space of the battery pack 100 inside the vehicle due to the free end of the lever 412.

As shown in fig. 3, 6 and 7, in the present embodiment, the first connecting member 20 further includes a connecting plate 22, the connecting plate 22 is disposed around the outer periphery of the first connecting block 21, and the first connecting block 20 is fixedly connected to the box body 10 through the connecting plate 22. Illustratively, the center of the first connecting block 21 coincides with the center of the connecting plate 22. In addition, the connection plate 22 and the case 10 may be fixed by a fixing connection method such as bonding or welding, so as to improve the connection strength between the first connector 20 and the case 10 and ensure the sealing performance between the first connector 20 and the case 10.

As shown in fig. 3 and 7, in the present embodiment, a mounting groove 12 is formed on a side wall of the box body 10, and the mounting groove 12 is matched with the first connecting piece 20, so that the first connecting piece 20 is accommodated in the mounting groove 12, and thus the surface of the connecting plate 22 can be flush with the surface of the box body 10, and the appearance of the box body 10 is more attractive after the first connecting piece 20 is mounted on the box body 10.

As shown in fig. 5 to 7, in the present embodiment, the second connecting member 40 further includes a U-shaped connecting plate 42, the first folding arm 422 and the second folding arm 423 of the U-shaped connecting plate 42 both extend from the side of the second connecting block 41 opposite to the shift lever 412 toward the side away from the shift lever 412, the connecting arm 424 of the U-shaped connecting plate 42 is connected to the side of the first folding arm 422 and the second folding arm 423 of the U-shaped connecting plate 42 away from the shift lever 412, the through opening of the U-shaped connecting plate 42 is formed at the side of the first folding arm 422 and the second folding arm 423 of the U-shaped connecting plate 42 close to the shift lever 412, and the cover 30 is clamped in the working area formed by the first folding arm 422, the second folding arm 423 and the connecting arm 424 of the U-shaped connecting plate 42 through the through opening of the U-shaped connecting plate 42, so that the cover 30 is detachably connected to the second connecting member 40.

For example, as shown in fig. 5 and fig. 7, in the present embodiment, when one end (i.e., the free end) of the shift lever 412 away from the bottom 411 of the second groove protrudes out of one side of the second folding arm 423 of the U-shaped connecting plate 42 away from the first folding arm 422, the second folding arm 423 of the U-shaped connecting plate 42 is provided with a first avoiding hole 421 corresponding to the shift lever 412, and when the shift lever 412 deforms toward one side close to the second groove 411, the shift lever 412 can extend into the first avoiding hole 421, so as to avoid the second folding arm 423 of the U-shaped connecting plate 42 from interfering with the deflection of the shift lever 412 when deforming; the cover 30 is provided with a second avoiding hole 31 corresponding to the shift lever 412, and when the cover 30 extends into a working area formed by the first folding arm 422, the second folding arm 423 and the connecting arm 424 of the U-shaped connecting plate 42 through the through opening of the U-shaped connecting plate 42, the shift lever 412 can extend into the second avoiding hole 31, so as to avoid interference of the shift lever 412 on clamping between the U-shaped connecting plate 42 and the cover 30.

Illustratively, as shown in fig. 5 and 7, in the present embodiment, two fastening holes 32 are provided at intervals on the cover 30, two fastening buckles 423a are provided at intervals on a side of the second folding arm 423 of the U-shaped connecting plate 42 close to the first folding arm 422, and when the cover 30 is clamped in a working area formed by the first folding arm 422 and the second folding arm 423 of the U-shaped connecting plate 42 and the connecting arm 424 connecting the first folding arm 422 and the second folding arm 423, the two fastening buckles 423a are fastened with the two fastening holes 32. The two snap fasteners 423a and the two snap holes 32 are only used for illustration, in the actual production and manufacturing process, the number of the snap fasteners 423a and the snap holes 32 may be one, three or four, and only the number of the snap fasteners 423a and the snap holes 32 need to be in one-to-one correspondence, and those skilled in the art should be able to reasonably select and design according to the actual situation, and no specific limitation is made here. It should be understood that the greater the number of the catching buckles 423a and the catching holes 32, the greater the coupling strength between the U-shaped connecting plate 42 and the cover 30.

In addition, as shown in fig. 3, 6 and 7, when the second connecting member 40 includes the U-shaped connecting plate 42, the connecting plate 22 of the first connecting member 20 may be provided with a fixing groove corresponding to the first folding arm 422 of the U-shaped connecting plate 42, so that the first folding arm 422 of the U-shaped connecting plate 42 is received in the fixing groove, and thus the surface of the first folding arm 422 of the U-shaped connecting plate 42 can be flush with the surface of the connecting plate 22, and the cover 30 clamped in the working area of the U-shaped connecting plate 42 can be flush with the cover 30 covering the connecting plate 22, thereby improving the aesthetic appearance of the cover 30.

As shown in fig. 1, 2 and 4, in the present embodiment, each of the first connecting members 20 and the second connecting members 40 includes a plurality of first connecting members 20 spaced apart along a periphery of the box 10, and a plurality of second connecting members 40 spaced apart along a periphery of the cover 30, so as to improve a connection strength between the cover 30 and the box 10. Regarding the specific number of the first connecting member 20 and the second connecting member 40, those skilled in the art should be able to make reasonable selection and design according to practical situations, and is not limited to the specific number. It should be understood that the greater the number of the first and

second connectors

20 and 40, the greater the coupling strength between the cover 30 and the case 10.

As shown in fig. 1, 2 and 4, in the present embodiment, at least two positioning holes 33 are formed on the cover 30, at least two positioning pins 14 are formed on the box 10, and the positioning pins 14 are received in the positioning holes 33, so that the second connecting block 41 can be aligned with the first groove 211, thereby facilitating the clamping fixation between the cover 30 and the box 10.

As shown in fig. 3 and 7, in the present embodiment, a receiving groove 15 is provided on the case body 10, the receiving groove 15 is surrounded along the periphery of the case body 10, and the sealing member 13 is provided in the receiving groove 15. The sealing element 13 may be a sealing ring, a sealant, or the like, so as to further improve the sealing performance between the cover 30 and the box 10. When the mounting groove 12 is formed on the sidewall of the case 10, the receiving groove 15 may be formed on a side of the mounting groove 12 away from the periphery of the case 10 to prevent the sealing performance between the cover 30 and the case 10 from being degraded due to the mounting groove 12.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a battery pack, its characterized in that, including the box, fixed set up in first connecting piece, lid on the box fit lid on the box and can dismantle connect in second connecting piece on the lid, the second connecting piece with first connecting piece joint is fixed, so that the lid with the box joint is fixed.

2. The battery pack according to claim 1, wherein the first connecting member includes a first connecting block having a first groove, a clamping platform is disposed on a side wall of the first groove, the second connecting member includes a second connecting block, a shift lever is disposed on the second connecting block, and the second connecting block can be inserted into the first groove, so that the shift lever is clamped and fixed with the clamping platform.

3. The battery pack according to claim 2, wherein a second groove is formed in the second connecting block, two adjacent side walls of the second groove are provided with openings, the shift lever is arranged at one of the openings of the second groove, a gap is formed between the shift lever and any one of the side walls of the second groove, a protruding block is arranged on one side, opposite to the shift lever, of the shift lever, which is far away from the second groove, and the protruding block is used for being clamped with the clamping table.

4. The battery pack of claim 3, wherein one end of the lever is fixedly connected to the bottom of the second groove, and the other end of the lever extends toward a side away from the bottom of the second groove.

5. The battery pack of claim 2, wherein the first connector further comprises a connecting plate, the connecting plate is arranged around the periphery of the first connecting block, and the first connecting block is fixedly connected with the box body through the connecting plate.

6. The battery pack of claim 5, wherein the side wall of the case is provided with a mounting groove, and the mounting groove is matched with the first connecting piece, so that the first connecting piece is accommodated in the mounting groove.

7. The battery pack according to claim 2, wherein the second connecting member further includes a U-shaped connecting plate, the first and second arms of the U-shaped connecting plate extend from a side of the second connecting block opposite to the shift lever toward a side away from the shift lever, the first and second arms of the U-shaped connecting plate are connected to the connecting arm of the U-shaped connecting plate at a side away from the shift lever, a through hole for the U-shaped connecting plate is formed at a side of the U-shaped connecting plate close to the shift lever, and the cover is held in the working area formed by the first and second arms of the U-shaped connecting plate and the connecting arm through the through hole of the U-shaped connecting plate.

8. The battery pack according to claim 7, wherein an end of the shift lever away from the bottom of the second groove of the second connecting block protrudes out of a side of the second folded arm of the U-shaped connecting plate away from the first folded arm, a first avoidance hole is formed in the second folded arm of the U-shaped connecting plate corresponding to the shift lever, and a second avoidance hole is formed in the cover body corresponding to the shift lever.

9. The battery pack according to claim 7, wherein the cover body is provided with two clamping holes at intervals, the second folding arm of the U-shaped connecting plate is provided with two clamping buckles at intervals at one side close to the first folding arm, and the two clamping buckles are correspondingly clamped with the two clamping holes.

10. The battery pack of claim 1, wherein the first connector and the second connector each comprise a plurality of first connectors spaced apart along a perimeter of the case and a plurality of second connectors spaced apart along a perimeter of the cover.

11. The battery pack according to claim 1, wherein the cover has at least two positioning holes, and the case has at least two positioning pins, the positioning pins being received in the positioning holes for positioning the second connecting member and the first connecting member.

12. The battery pack of claim 1, wherein the case body is provided with a receiving groove, the receiving groove is defined along a periphery of the case body, and a sealing member is disposed in the receiving groove.