CN218351646U - Battery pack - Google Patents

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

a battery pack

technical field

The utility model relates to the technical field of power batteries, in particular to a battery pack.

Background technique

With the rapid development of social economy and the continuous improvement of people's living standards, new energy vehicles have gradually entered thousands of households, and the new energy vehicle industry has begun to develop rapidly. Various models emerge in an endless stream to meet the needs of different consumers. The battery pack is the most important part of a new energy vehicle, and generally includes a box body, a cover body covering the box body, and a plurality of battery modules arranged in the box body.

The existing cover and box are usually connected by bolts, that is, the cover and the box are respectively provided with corresponding installation holes, and the bolts pass through the installation holes on the cover and the box in turn to connect with nuts. In order to ensure the stability of the connection between the cover and the box, a battery pack usually needs to use 30 to 60 matching bolts and nuts. Due to the large number of bolts and nuts, it is extremely time-consuming in the actual assembly process. Power consumption affects the efficiency of disassembly and assembly. In addition, due to the limited service life of bolts and nuts, generally about 5 times, in the actual assembly process, bolts often slipped, and the bolts after slipping were stuck in the nuts, which took longer It will seriously affect the efficiency of disassembly and assembly.

Utility model content

The purpose of the utility model is to provide a battery pack, which can be easily installed and disassembled, thereby improving the disassembly efficiency of the battery pack.

Embodiments of the utility model are achieved in that:

An embodiment of the utility model provides a battery pack, which includes a box body, a first connector fixedly arranged on the box body, a cover body that covers the box body, and a cover body that is detachably connected to the cover body The second connecting piece is clamped and fixed with the first connecting piece, so that the cover and the box are clamped and fixed. The battery pack can be easily installed and disassembled, thereby improving the disassembly efficiency of the battery pack.

Optionally, the first connecting piece includes a first connecting block having a first groove, a side wall of the first groove is provided with a locking platform, and the second connecting piece includes a second connecting block, A lever is provided on the second connection block, and the second connection block can be plugged into the first groove, so that the lever is clamped and fixed with the clamping platform.

Optionally, the second connection block is provided with a second groove, and two adjacent side walls of the second groove have openings, and the driving rod is arranged in the second groove. There is an opening, and there is a gap between the driving rod and any side wall of the second groove, and a protrusion is provided on the side of the driving rod far away from the second groove and opposite to the driving rod , the protrusion is used for engaging with the engaging platform.

Optionally, one end of the driving rod is fixedly connected to the bottom of the second groove, and the other end of the driving rod extends toward a side away from the bottom of the second groove.

Optionally, the first connecting member further includes a connecting plate arranged along the outer circumference of the first connecting block, and the first connecting block is fixedly connected to the box through the connecting plate.

Optionally, a mounting groove is provided on the side wall of the box, and the mounting groove matches the first connecting piece, so that the first connecting piece is accommodated in the mounting groove.

Optionally, the second connecting piece further includes a U-shaped connecting plate, and the first and second folding arms of the U-shaped connecting plate are connected from a side of the second connecting block opposite to the driving lever. The side extends toward the side away from the driving rod, the first folding arm and the second folding arm of the U-shaped connecting plate are connected to the connecting arm of the U-shaped connecting plate on the side away from the driving rod, and the One side of the first folded arm and the second folded arm of the U-shaped connecting plate close to the driving lever is formed with a passage opening of the U-shaped connecting plate, and the cover body passes through the passing opening of the U-shaped connecting plate Clamped in the working area formed by the first folding arm, the second folding arm and the connecting arm of the U-shaped connecting plate.

Optionally, the end of the driving lever away from the bottom of the second groove of the second connecting block protrudes from the side of the second folding arm of the U-shaped connecting plate away from the first folding arm, and the U The second folding arm of the shaped connecting plate is provided with a first escape hole corresponding to the driving rod, and the cover is provided with a second avoiding hole corresponding to the driving rod.

Optionally, two locking holes are arranged at intervals on the cover, and two engaging buckles are arranged at intervals on the side of the second folding arm of the U-shaped connecting plate close to the first folding arm. The snap-in buckle is correspondingly snapped into the two snap-in holes.

Optionally, both the first connector and the second connector include a plurality, the plurality of first connectors are distributed at intervals along the periphery of the box, and the plurality of second connectors are distributed along the circumference of the box. The periphery of the cover body is distributed at intervals.

Optionally, the cover is provided with at least two positioning holes, and the box is provided with at least two positioning pins, and the positioning pins are limitedly accommodated in the positioning holes, so that the first The second connecting piece is positioned and installed with the first connecting piece.

Optionally, a receiving groove is provided on the box body, the receiving groove is arranged along the periphery of the box body, and a sealing member is arranged in the receiving groove.

The beneficial effects of the utility model embodiment include:

The battery pack includes a box body, a first connecting piece fixedly arranged on the box body, a cover body covered on the box body, and a second connecting piece detachably connected to the cover body, the second connecting piece is connected to the first connecting piece The parts are clamped and fixed so that the cover and the box are clamped and fixed. In the actual installation process, the first connecting piece can be fixedly connected to the box body, the second connecting piece can be detachably connected to the cover, and then the second connecting piece can be connected with the first connecting piece to complete For the installation operation of the cover body and the box body, on the contrary, the disassembly operation of the cover body and the box body can be completed only by disconnecting the second connecting piece from the first connecting piece. The above-mentioned installation and disassembly operations have the advantages of being simple and convenient without the need for tools. Compared with the battery pack in the prior art that uses bolts and nuts to cooperate, the battery pack provided by the application can be easily installed and disassembled, thereby improving The disassembly and assembly efficiency of the battery pack.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

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

Fig. 2 is a schematic structural view of the box body and the first connector provided by the embodiment of the present invention;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

Fig. 4 is a schematic structural view of the cover and the second connector provided by the embodiment of the present invention;

Fig. 5 is a partial enlarged view of place B in Fig. 4;

Fig. 6 is a schematic structural diagram of the first connector and the second connector provided by the embodiment of the present invention;

Fig. 7 is a schematic cross-sectional view of the battery pack provided by the embodiment of the present invention.

Icons: 100-battery pack; 10-box; 11-hollow structure; 12-installation groove; 13-sealing; 14-locating pin; ; -Second connecting block; 411-Second groove; 412-Drive lever; 413-Bump; 42-U-shaped connecting plate; 421-First escape hole; 422-First folding arm; 423-Second folding arm ; 423a-snap buckle; 424-connecting arm.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is absolutely level or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be connected internally between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Please refer to FIG. 1 to FIG. 7 , the embodiment of the present application provides a battery pack 100 , including a box body 10 , a first connector 20 fixedly arranged on the box body 10 , and a cover body 30 covering the box body 10 And the second connecting piece 40 detachably connected to the cover 30 , the second connecting piece 40 is clamped and fixed with the first connecting piece 20 , so that the cover 30 is clamped and fixed with the box body 10 . The battery pack 100 can be easily installed and disassembled, thereby improving the disassembly efficiency of the battery pack 100 .

In the actual installation process, as shown in Figure 2 and Figure 3, the first connecting piece 20 can be fixedly connected to the box body 10 first, as shown in Figure 4 and Figure 5, the second connecting piece 40 can be detachably connected to the cover body 30, as shown in Figure 6 and Figure 7, and then connect the second connector 40 with the first connector 20, as shown in Figure 1, the installation operation of the cover 30 and the box body 10 can be completed , On the contrary, the disassembly operation of the cover body 30 and the box body 10 can be completed only by disconnecting the second connecting member 40 from the first connecting member 20 . The above-mentioned installation and disassembly operations have the advantages of being simple and convenient, without the need for tools. Compared with the battery pack in the prior art that uses bolts and nuts to cooperate with each other, the battery pack 100 provided by the present application can be easily installed and disassembled, thereby The disassembly and assembly efficiency of the battery pack 100 is improved.

Specifically, as shown in FIG. 6 and FIG. 7 , in this embodiment, the first connecting member 20 includes a first connecting block 21 having a first groove 211 , and the side wall of the first groove 211 is provided with snap-fit The platform 212, the second connecting piece 40 includes a second connecting block 41, the second connecting block 41 is provided with a lever 412, the second connecting block 41 can be plugged into the first groove 211, so that the lever 412 is connected with the card The connecting platform 212 is clamped and fixed.

In the actual installation process, as shown in FIG. 7 , since the side wall of the first groove 211 is provided with a clamping platform 212 , when the driving lever 412 is deformed 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 is driven toward the side away from the second groove 411 to reset, the lever 412 can be engaged with the clamping platform 212 fixed, so that the second connection block 41 is clamped and fixed with the first connection block 21 , and then the cover 30 is clamped and fixed with the box body 10 . In the actual disassembly process, it is only necessary to drive the lever 412 to deform toward the side close to the second groove 411, so that the lever 412 is released from the clamping platform 212, and then the second connecting block is connected by the lever 412. 41 is pulled out from the first groove 211, so that the cover 30 and the box body 10 can be disengaged, so that the cover 30 can be easily removed from the box body 10, and the cover 30 and the box body 10 are completed. Disassembly operation.

As shown in FIG. 6 and FIG. 7 , the second connecting block 41 is provided with a second groove 411 , the two adjacent side walls of the second groove 411 have openings, and the driving rod 412 is arranged in the second groove 411 One of the openings, and there is a gap between the driving rod 412 and any side wall of the second groove 411, and the side of the driving rod 412 away from the second groove 411 opposite to the driving rod 412 is provided with a protrusion 413, and the protrusion The block 413 is used for clamping with the clamping platform 212 .

It should be noted that, as shown in FIG. 6 and FIG. 7 , the second connecting block 41 is provided with a second groove 411 and a lever 412 , wherein two adjacent side walls of the second groove 411 have openings , the driving rod 412 is arranged at one of the openings of the second groove 411, and there is a gap between the outer wall of the driving rod 412 and any side wall of the second groove 411, so that when the driving rod 412 is driven to deform Can move in the second groove 411 . Regarding the actual size of the gap between the outer wall of the lever 412 and the corresponding side wall of the second groove 411 , those skilled in the art should be able to make a reasonable selection and design according to the actual situation, and no specific limitation is made here.

It should be noted that, as shown in FIG. 7 , the distance between the lever 412 and the side of the second connecting block 41 away from the lever 412 should be equal to or smaller than that between the clamping platform 212 and the first groove 211 away from the clamping platform 212 The distance between the side of the protruding block 413 and the side of the second connecting block 41 away from the lever 412 should be greater than the side of the clamping platform 212 and the first groove 211 away from the clamping platform 212 The distance between them is smaller than the distance between the side wall of the first groove 211 provided with the clamping platform 212 and the other side wall of the opposite first groove 211, so that when the driving lever 412 approaches the first groove When one side of the second groove 411 is deformed, the 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 without being affected by the protrusion 413. Placed in the first groove 211, when the driving lever 412 is driven towards the side away from the second groove 411 to reset, the lever 412 can drive the bump 413 to reset together, so that the bump 413 can be connected with the clamping platform 212 Locking is realized by clamping and fixing.

As shown in FIGS. 6 and 7 , in this embodiment, when the lever 412 resets toward the side away from the second groove 411 , the side of the lever 412 away from the second groove 411 and the second connecting block 41 The side walls of the second connecting block 41 are flush with each other, and the protrusion 413 protrudes from the side wall of the second connecting block 41 . In other words, when the lever 412 resets toward the side away from the second groove 411 , the distance between the lever 412 and the side of the second connecting block 41 away from the lever 412 is equal to the distance between the lever 412 and the side on the same side as the lever 412 . The distance between the side wall of the second connecting block 41 and the side wall of the opposite second connecting block 41 (that is, the side of the second connecting block 41 away from the lever 412), the tip of the projection 413 and the second connecting block 41 The distance between the side away from the driving rod 412 is greater than the side wall of the second connecting block 41 on the same side as the driving rod 412 and the side wall of the opposite second connecting block 41 (that is, the second connecting block 41 is far away from the driving rod 412 The distance between one side of ) is to ensure that the second connection block 41 can be smoothly accommodated in the first groove 211 without being affected by the bump 413 and that the bump 413 can be clamped and fixed with the clamping platform 212 to achieve On the basis of locking, the sealing performance between the cover body 30 and the box body 10 is improved as much as possible.

As shown in Figures 6 and 7, in this embodiment, one end (ie, the fixed end) of the driving rod 412 is fixedly connected to the bottom of the second groove 411, and the other end (ie, the free end) of the driving rod 412 faces away from One side of the bottom of the second groove 411 extends, so that the operator can easily pass the free end of the control lever 412 to deform the lever 412, and at the same time, the operator can easily pass through the free end of the lever 412. The free end pulls the second connecting block 41 out of the first groove 211 . Regarding the specific length of the free end of the driving rod 412 protruding from the groove top of the second groove 411 , those skilled in the art should be able to make a reasonable selection and design according to the actual situation, and no specific limitation is made here. It should be understood that the actual length of the free end of the driving rod 412 protruding from the top of the second groove 411 cannot be too short, so as to prevent the operator from pulling the second connecting block 41 from the first groove through the free end of the driving rod 412 . When pulling out in 211, it is inconvenient to apply external force to act on the free end of driving lever 412; This leads to an increase in the installation space required for the battery pack 100 inside the car.

As shown in Fig. 3, Fig. 6 and Fig. 7, in this embodiment, the first connecting piece 20 further includes a connecting plate 22, and the connecting plate 22 is arranged along the outer periphery of the first connecting block 21, and the first connecting block 20 is connected by The board 22 is fixedly connected with the box body 10 . Exemplarily, the center of the first connecting block 21 coincides with the center of the connecting plate 22 . In addition, the connecting plate 22 and the box body 10 can be fixed by bonding, welding and other fixed connection methods to improve the connection strength between the first connecting piece 20 and the box body 10, and can also ensure that the first connecting piece 20 and the box body The sealing performance between the body 10.

As shown in Fig. 3 and Fig. 7, in this embodiment, the side wall of the box body 10 is provided with a mounting groove 12, and the mounting groove 12 is matched with the first connecting piece 20, so that the first connecting piece 20 is accommodated in the Installed in the groove 12, so that the surface of the connecting plate 22 can be flush with the surface of the box body 10, thereby improving the aesthetic appearance of the box body 10 after the first connecting member 20 is installed on the box body 10.

As shown in Figures 5 to 7, in this embodiment, the second connecting member 40 further includes a U-shaped connecting plate 42, and the first folded arm 422 and the second folded arm 423 of the U-shaped connecting plate 42 are connected from the second joint. One side of the block 41 opposite to the driving rod 412 extends toward the side away from the driving rod 412, and the first folding arm 422 and the second folding arm 423 of the U-shaped connecting plate 42 are connected with a U-shaped connection on the side away from the driving rod 412. The connecting arm 424 of the plate 42, the first folded arm 422 and the second folded arm 423 of the U-shaped connecting plate 42 are formed with a U-shaped connecting plate 42 on the side close to the driving lever 412, and the cover body 30 is connected by a U-shaped The through opening of the plate 42 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, so that the cover body 30 is detachably connected with the second connecting piece 40 .

For example, as shown in FIGS. 5 and 7 , in this embodiment, when the end (that is, the free end) of the lever 412 away from the bottom 411 of the second groove protrudes from the second folding arm of the U-shaped connecting plate 42 423 away from the side of the first folded arm 422, the second folded arm 423 of the U-shaped connecting plate 42 is provided with a first avoidance hole 421 corresponding to the lever 412, and when the lever 412 faces the side close to the second groove 411 During deformation, the driving rod 412 can be extended into the first escape hole 421, so as to prevent the second folding arm 423 of the U-shaped connecting plate 42 from interfering with the deflection of the driving rod 412 during deformation; The second avoidance hole 31, when the cover body 30 stretches into 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 opening of the U-shaped connecting plate 42, The driving rod 412 can extend into the second escape hole 31 to prevent the driving rod 412 from interfering with the engagement between the U-shaped connecting plate 42 and the cover 30 .

For example, as shown in FIG. 5 and FIG. 7 , in this embodiment, two locking holes 32 are arranged at intervals on the cover body 30 , and the second folding arm 423 of the U-shaped connecting plate 42 is close to the first folding arm 422 . Two buckles 423a are provided at intervals on one side. When the cover body 30 is clamped on the first folded arm 422 and the second folded arm 423 of the U-shaped connecting plate 42 and the joint connecting the first folded arm 422 and the second folded arm 423 When within the working area formed by the connecting arm 424 , the two buckles 423 a are engaged with the two snap holes 32 correspondingly. The above-mentioned two snap-fit buckles 423a and two snap-fit holes 32 are only used for illustration. In the actual manufacturing process, the number of snap-fit buckles 423a and snap-fit holes 32 can be one, three or four. For example, it is only necessary to make one-to-one correspondence between the numbers of the snap-in buckles 423a and the snap-in holes 32 , and those skilled in the art should be able to make reasonable selections and designs according to actual conditions, and no specific limitation is set here. It should be understood that the greater the number of snap-fit buckles 423 a and snap-fit holes 32 , the greater the connection strength between the U-shaped connecting plate 42 and the cover body 30 .

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

As shown in FIG. 1 , FIG. 2 and FIG. 4 , in this embodiment, the first connector 20 and the second connector 40 each include a plurality, and the plurality of first connectors 20 are distributed at intervals along the periphery of the box body 10 , A plurality of second connecting members 40 are distributed at intervals along the periphery of the cover body 30 to improve the connection strength between the cover body 30 and the box body 10 . As for 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 the actual situation, and there is no specific limitation here. It should be understood that the greater the number of the first connecting member 20 and the second connecting member 40 , the greater the connection strength between the cover body 30 and the box body 10 .

As shown in Figure 1, Figure 2 and Figure 4, in this embodiment, at least two positioning holes 33 are provided on the cover body 30, and at least two positioning pins 14 are provided on the box body 10, and the positioning pins 14 are accommodated in In the positioning hole 33 , the second connection block 41 can be aligned with the first groove 211 , so as to facilitate the fastening and fixing between the cover body 30 and the box body 10 .

As shown in FIG. 3 and FIG. 7 , in this embodiment, the housing 10 is provided with a receiving groove 15 , the receiving groove 15 is arranged along the periphery of the housing 10 , and a sealing member 13 is arranged in the receiving groove 15 . Wherein, the sealing member 13 may be a sealing ring, sealant, etc., so as to further improve the sealing performance between the cover body 30 and the box body 10 . When the side wall of the box body 10 is provided with the installation groove 12, the receiving groove 15 can be located on the side of the installation groove 12 away from the periphery of the box body 10, so as to avoid the sealing performance between the cover body 30 and the box body 10 caused by the installation groove 12 Decline.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (12)

1. A battery pack, characterized in that it comprises a box body, a first connector fixedly arranged on the box body, a cover body covered on the box body, and a cover body detachably connected to the cover body The second connecting piece is clamped and fixed with the first connecting piece, so that the cover and the box are clamped and fixed. 2. The battery pack according to claim 1, wherein the first connecting member comprises a first connecting block having a first groove, and a side wall of the first groove is provided with a clamping platform, The second connecting piece includes a second connecting block, and the second connecting block is provided with a lever, and the second connecting block can be plugged into the first groove, so that the lever is connected to the The clamping platform is clamped and fixed. 3. The battery pack according to claim 2, wherein the second connection block is provided with a second groove, and two adjacent side walls of the second groove have openings, the The driving rod is arranged at one of the openings of the second groove, and there is a gap between the driving rod and any side wall of the second groove, and the driving rod is far away from the side wall of the second groove. A protruding block is provided on the opposite side of the driving lever, and the protruding block is used for clamping with the clamping platform. 4. The battery pack according to 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 faces away from the second groove One side of the groove bottom extends. 5. The battery pack according to claim 2, wherein the first connecting piece further comprises a connecting plate, the connecting plate is provided along the outer circumference of the first connecting block, and the first connecting block passes through The connecting plate is fixedly connected with the box body. 6. The battery pack according to claim 5, wherein a mounting groove is provided on the side wall of the box, and the mounting groove is matched with the first connecting piece, so that the first connecting piece The parts are accommodated in the installation groove. 7. The battery pack according to claim 2, wherein the second connecting member further comprises a U-shaped connecting plate, the first and second folded arms of the U-shaped connecting plate are formed from the first folded arm. The side opposite to the driving lever of the two connecting blocks extends toward the side away from the driving lever, and the first folding arm and the second folding arm of the U-shaped connecting plate are connected to a side far away from the driving lever. The connecting arm of the U-shaped connecting plate, the first folded arm and the second folded arm of the U-shaped connecting plate are formed with a passage opening of the U-shaped connecting plate on a side close to the driving lever, and the cover The body is clamped in the working area formed by the first folding arm, the second folding arm and the connecting arm of the U-shaped connecting plate through the passage opening of the U-shaped connecting plate. 8. The battery pack according to claim 7, wherein the end of the lever away from the bottom of the second groove of the second connecting block protrudes from the second folding arm of the U-shaped connecting plate On the side away from the first folding arm, a first escape hole is provided on the second folding arm of the U-shaped connecting plate corresponding to the driving rod, and a second avoiding hole is provided on the cover corresponding to the driving rod. 9 . The battery pack according to claim 7 , wherein two locking holes are arranged at intervals on the cover, and the second folded arm of the U-shaped connecting plate is spaced apart from the side close to the first folded arm. There are two snap-in buckles, and the two snap-in buckles are correspondingly snapped into the two snap-in holes. 10. The battery pack according to claim 1, wherein each of the first connector and the second connector comprises a plurality of the first connectors spaced along the periphery of the box Distributed, a plurality of the second connectors are distributed at intervals along the periphery of the cover. 11. The battery pack according to claim 1, wherein at least two positioning holes are provided on the cover, and at least two positioning pins are provided on the box, and the positioning pins limit and accommodate In the positioning hole, the second connecting piece is positioned and installed with the first connecting piece. 12 . The battery pack according to claim 1 , wherein a receiving groove is provided on the box body, the receiving groove is arranged along a periphery of the box body, and a sealing member is arranged in the receiving groove. 13 .

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