CN218569028U

CN218569028U - Battery pack

Info

Publication number: CN218569028U
Application number: CN202222830668.1U
Authority: CN
Inventors: 周宇鹏; 张泽昊
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-03
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a battery pack relates to battery pack technical field. The battery pack comprises a frame body, side plates and end plates, wherein the frame body comprises a bottom plate, a first baffle and a second baffle, the first baffle and the second baffle are respectively connected with two adjacent sides of the bottom plate, and a plurality of battery cores are arranged on the bottom plate side by side and are fixedly adhered to the bottom plate. The side plate and the end plate are respectively connected to the other two adjacent sides of the bottom plate, the side plate is arranged opposite to the first baffle, the end plate is arranged opposite to the second baffle, and the side plate and the first baffle simultaneously apply clamping force to the plurality of battery cells; and/or the end plate and the second baffle jointly exert clamping force on the plurality of battery cells. The battery pack can reduce the weight and cost of the battery pack, is simple to produce and operate, and reduces the material and labor cost. And the electric connection failure caused by the displacement of the battery core can be avoided, and the safety of the battery pack is improved.

Description

Battery pack

Technical Field

The utility model relates to a battery package technical field especially relates to a battery package.

Background

The battery module in the battery pack supplies energy to electric equipment, in order to reduce the weight and the cost of the battery pack, the manufacturing process of the battery cell → the module → the whole pack is simplified into the battery cell → the whole pack at present, the intermediate state of the module is removed, and the weight and the cost of the whole pack can be reduced by the technology. The battery pack in the prior art is provided with heat-conducting silica gel sheets on the bottom plate and the side plate of the box body, and the battery cell is tightly pressed by the convex points on the heat-conducting silica gel sheets acting on the side wall of the battery cell. However, this kind of positioning method is not stable, and when the battery pack receives a large impact force such as a collision, the battery core is easy to shift, which may cause an electrical connection failure, and the safety cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery pack, which can not only reduce the weight and cost of the battery pack; and the safety of the battery pack can be ensured.

To achieve the purpose, the utility model adopts the following technical proposal:

a battery pack, comprising:

the battery cell structure comprises a frame body, a battery cell and a battery cell, wherein the frame body comprises a bottom plate, a first baffle and a second baffle, the first baffle and the second baffle are respectively connected with two adjacent sides of the bottom plate, and a plurality of battery cells are placed on the bottom plate in parallel and are fixedly adhered to the bottom plate;

the side plates and the end plates are respectively connected to two adjacent sides of the bottom plate, the side plates are arranged opposite to the first baffle, the end plates are arranged opposite to the second baffle, and the side plates and the first baffle jointly apply clamping force to the plurality of battery cells; and/or the end plate and the second baffle jointly exert clamping force on the battery cores.

As an alternative of the battery pack, the gluing path on the bottom plate is S-shaped, and the glue overflowing area is greater than 80% of the contact area between the battery core and the bottom plate.

As an alternative of the battery pack, the side plate and the first baffle are both provided with a limiting structure, the limiting structure protrudes out of the inner wall of the side plate and the inner wall of the first baffle, and clamping force is applied to the plurality of battery cores through the two limiting structures.

As an alternative of the battery pack, a buffer groove is formed in one side, close to the battery core, of the limiting structure.

As an alternative of the battery pack, the battery pack further comprises a limiting barrier, the limiting barrier is located between the battery core and the end plates, and two ends of the limiting barrier are respectively connected with the side plates and the first baffle.

As an alternative of the battery pack, the inner wall of the second barrier is provided with a buffering projection.

As an alternative of the battery pack, the bottom plate is provided with a first connecting member, and the side plate is connected with the bottom plate through the first connecting member.

As an alternative of the battery pack, the first connecting piece includes a first connecting plate and a first limiting plate, the first connecting plate is connected with the side plate, the first limiting plates are provided with a plurality of intervals, the first limiting plates are perpendicular to the first connecting plate and face the first baffle, and the first limiting plates are used for limiting the positions of the battery cores.

As an alternative of the battery pack, the battery pack further includes an upper cover, and the first baffle and the side plate are connected to the upper cover; and/or the presence of a gas in the gas,

the second baffle and the end plate are connected with the upper cover.

As an alternative of the battery pack, the upper cover comprises an upper cover body and a plurality of second connecting plates perpendicular to the upper cover body, and the upper ends of the first baffle, the second baffle and the side plates are provided with third connecting plates in fit connection with the second connecting plates.

As an alternative of the battery pack, a fixing member is disposed on the third connecting plate at the upper end of the first baffle and/or the third connecting plate at the upper end of the side plate, and the fixing member is used for fixing the collecting wire harness of the battery core.

As an alternative of the battery pack, a connecting frame is arranged on one side of the end plate close to the second baffle plate, and the end plate is connected with the first baffle plate and the side plate through the connecting frame; and/or the presence of a gas in the gas,

the end plate is connected with the bottom plate and the upper cover through the connecting frame.

As an alternative to the battery pack, the outer wall of the first flap and/or the side panel is provided with a handle.

As an alternative of the battery pack, the battery pack further includes a second connector for fixing the battery pack.

The utility model has the advantages that:

the utility model provides a battery pack, including framework, curb plate and end plate, a plurality of electric cores are placed side by side in the bottom plate, and with bottom plate adhesive fixation. The framework passes through the bottom plate, first baffle and second baffle carry out the spacing of three direction to a plurality of electric cores, a plurality of electric cores are put into the framework, be in natural state, then connect the curb plate in the opposite side of first baffle again, exert the clamp force to a plurality of electric cores simultaneously through curb plate and first baffle, increase both sides clamp force to electric core, set up the end plate in the opposite side of second baffle at last, the clamp force is exerted to a plurality of electric cores jointly to end plate and second baffle, further guarantee the stability of electric core. The battery pack not only can reduce the weight of the battery pack, but also is simple to produce and operate, and reduces the material and labor cost. And through a plurality of electric cores of bottom plate adhesive fixation, then exert the clamp force to a plurality of electric cores through curb plate and first baffle cooperation, end plate and second baffle exert the clamp force to a plurality of electric cores jointly, and a plurality of electric cores are more firm, and the battery package is when receiving external force striking, avoids electric core to shift the electric connection inefficacy that leads to, has improved the security of battery package.

Drawings

Fig. 1 is an exploded view of a frame body, side plates, end plates, limit bars and an upper cover according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a gluing path on a base plate according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a plurality of battery cells placed in a frame according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a side plate according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a plurality of battery cells, which are placed in a frame body and then are matched with a side plate and a limiting barrier strip according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a hidden upper cover of a battery pack according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

In the figure:

100. an electric core;

1. a frame body; 11. a base plate; 111. AB glue; 112. a first connecting member; 1121. a first connecting plate; 1122. a first limit plate; 12. a first baffle plate; 13. a second baffle; 131. a buffer protrusion; 132. a sixth threaded hole;

2. a side plate; 21. A fourth connecting plate;

3. an end plate; 31. A connecting frame;

4. a limiting structure; 41. a buffer groove;

5. a limiting barrier strip;

6. a second connecting member;

7. an upper cover; 71. An upper cover body; 72. A second connecting plate;

8. a third connecting plate; 81. A fixing member; 82. A third threaded hole;

9. a handle.

Detailed Description

In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further explained below by means of specific embodiments in conjunction with the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1 to 4, the present embodiment provides a battery pack, which includes a frame 1, a side plate 2, and an end plate 3, where the frame 1 includes a bottom plate 11, and a first baffle 12 and a second baffle 13 connected to two adjacent sides of the bottom plate 11, respectively, and a plurality of battery cells 100 are placed in parallel on the bottom plate 11, and are fixed to the bottom plate 11 by gluing. The side plate 2 and the end plate 3 are respectively connected to two adjacent sides of the bottom plate 11, the side plate 2 is arranged opposite to the first baffle plate 12, the end plate 3 is arranged opposite to the second baffle plate 13, and the side plate 2 and the first baffle plate 12 apply clamping force to the plurality of battery cells 100 at the same time; and/or the end plate 3 and the second baffle 13 collectively apply a clamping force to the plurality of battery cells 100.

The end plate 3 is provided with a battery management unit, and the plurality of battery cores 100 are electrically connected with the battery management unit, so that the battery pack can provide electric energy for external electric equipment.

The first baffle plate 12 and the second baffle plate 13 are welded with the bottom plate 11 to form the frame body 1 of an integrated structure, the AB glue 111 is coated on the bottom plate 11, the AB glue 111 has high bonding strength, and the battery cell 100 can be fixed on the bottom plate 11, so that the bottom of the battery cell 100 is firmly fixed.

Framework 1 is through bottom plate 11, first baffle 12 and second baffle 13 carry out the spacing of three direction to a plurality of electric cores 100, a plurality of electric cores 100 are put into framework 1, be in natural state, then connect curb plate 2 in the opposite side of first baffle 12, exert the clamp force to a plurality of electric cores 100 simultaneously through curb plate 2 and first baffle 12, increase both sides clamp force to electric core 100, set up end plate 3 in the opposite side of second baffle 13 at last, end plate 3 and second baffle 13 exert the clamp force to a plurality of electric cores 100 jointly, further guarantee electric core 100's stability. The battery pack not only can reduce the weight of the battery pack, but also is simple to produce and operate, and reduces the material and labor cost. And through a plurality of electric cores 100 of bottom plate 11 adhesive fixation, then exert the clamp force to a plurality of electric cores 100 through curb plate 2 and the cooperation of first baffle 12, end plate 3 and second baffle 13 exert the clamp force to a plurality of electric cores 100 jointly for a plurality of electric cores 100 are more firm, and the battery package is when receiving external force striking, avoids electric core 100 to shift the electric connection inefficacy that leads to, has improved the security of battery package.

As an alternative of the battery pack, the gluing path on the bottom plate 11 is S-shaped, and the glue overflow area is greater than 80% of the contact area between the battery cell 100 and the bottom plate 11. With such an arrangement, the firmness of bonding the bottom of the battery cell 100 can be ensured.

Optionally, the battery cells 100 are arranged along the length direction or the width direction of the S-shaped gluing path. In the present embodiment, the battery cells 100 are arranged along the width direction of the S-shaped gluing path. Of course, in other embodiments, the battery cells 100 may also be disposed along the length direction of the S-shaped gluing path.

After a plurality of batteries 100 are put into the frame body 1, the side plate 2 is installed, the first connecting piece 112 is arranged on the bottom plate 11, and the side plate 2 is connected with the bottom plate 11 through the first connecting piece 112. Specifically, the first connecting member 112 includes a first connecting plate 1121 and a first limiting plate 1122, the first connecting plate 1121 is connected to the side plate 2, the first limiting plate 1122 is provided at intervals in a plurality, the first limiting plates 1122 are perpendicular to the first connecting plate 1121 and all face the first baffle 12, and the first limiting plate 1122 is used for limiting the positions of the plurality of battery cells 100. A plurality of first threaded holes are formed in the first connection plate 1121, a first connection hole is formed in a position, corresponding to the first threaded hole, of the side plate 2, and a first screw penetrates through the first connection hole to be in threaded connection with the first threaded hole, so that the side plate 2 is fixedly connected with the bottom plate 11. The first restriction plates 1122 abut against the side walls of the battery cells 100, and restrict the positions of the battery cells 100 when the battery cells 100 are placed in the housing 1.

Curb plate 2 and baffle exert the clamp force to electric core 100 jointly, all are provided with limit structure 4 on curb plate 2 and the first baffle 12, and the clamp force is exerted to a plurality of electric cores 100 through two limit structure 4 to the inner wall setting of the inner wall of limit structure 4 protrusion curb plate 2 and first baffle 12. Limiting structure 4 is the stopper that sets up along the length direction of curb plate 2 and the length direction of first baffle 12, and this stopper is the cuboid form, comprises four angle steel and a steel sheet, and a lateral wall of angle steel and the inner wall welding of curb plate 2, another lateral wall are the lateral wall of the stopper of cuboid form, and the steel sheet covers on four angle steel for with a plurality of electric core 100 butt, the steel sheet of both sides is pressed from both sides tightly a plurality of electric core 100's both sides. The limiting structure 4 manufactured in this way is simple in structure, easy to manufacture, large in contact area with the plurality of battery cells 100, and free from increasing the weight of the battery pack.

The clamping force required by two sides of the plurality of battery cells 100 is calculated through simulation, and the clamping force is adjusted by changing the height of the limiting structure 4. The length of limit structure 4 equals the total length of one side that a plurality of batteries 100 and curb plate 2 are relative, and limit structure 4's height is higher, and the clamp force is big more.

One end of the side plate 2 close to the second baffle 13 is further provided with a fourth connecting plate 21, the fourth connecting plate 21 is perpendicular to the side plate 2 and is connected with the second baffle 13 through the fourth connecting plate 21, a sixth connecting hole is formed in the fourth connecting plate 21, a sixth threaded hole 132 is formed in the second baffle 13 corresponding to the sixth connecting hole, and a sixth screw penetrates through the sixth connecting hole and is in threaded connection with the sixth threaded hole 132.

When the battery core 100 works, the battery core 100 can be heated to expand, and one side of the limiting structure 4, which is close to the battery core 100, is provided with a buffer groove 41. A certain deformation space is provided for the battery core 100 during expansion and deformation through the buffer groove 41, and the deformation of the side plate 2 and the first baffle 12 under stress is avoided.

In this embodiment, two transverse buffer grooves are arranged at intervals along the height direction of the limiting structure 4, and a longitudinal buffer groove is arranged between the two transverse buffer grooves.

As shown in fig. 5, in order to prevent the battery cell 100 from moving toward the end plate 3 under the impact of an external force and damaging the battery management unit on the end plate 3, the battery pack further includes a limiting barrier 5, the limiting barrier 5 is located between the battery cell 100 and the end plate 3, and two ends of the limiting barrier 5 are respectively connected to the side plate 2 and the first baffle 12.

In this embodiment, two ends of the limiting barrier 5 are respectively connected to one side of the two limiting structures 4 close to the end plate 3. One side that two limit structure 4 are close to end plate 3 all is provided with the second screw hole, and the both ends of spacing blend stop 5 all are provided with the second connecting hole, and the second screw passes second connecting hole and second screw hole spiro union.

Of course, in other embodiments, the two ends of the limit stop 5 may be directly connected to the side plate 2 and the first baffle 12.

Spacing blend stop 5 is made by the channel-section steel, and the tank bottom of channel-section steel is used for restricting the position of electric core 100, and the both sides wall of channel-section steel all extends to the direction that is close to end plate 3 to leave between messenger's electric core 100 and the end plate 3 and dodge the space, in order to dodge the battery management unit.

Meanwhile, in order to avoid damage to the battery cell 100 in the battery pack caused by external force impacting the second baffle 13, the inner wall of the second baffle 13 is provided with a buffering protrusion 131. The cell 100 can be prevented from being damaged by external force striking the second barrier 13 by the buffering protrusion 131. Meanwhile, the buffer protrusions 131 and the limiting barrier strips 5 jointly clamp a plurality of battery cells 100.

As shown in fig. 1, 6 and 7, after the two ends of the limiting barrier 5 are respectively fixed on the two limiting structures 4, the end plate 3 is then installed, the battery pack further includes an upper cover 7, and after the end plate 3 is installed, the battery pack is finally closed by the upper cover 7 to protect the battery core 100.

A connecting frame 31 is arranged on one side of the end plate 3 close to the second baffle plate 13, and the end plate 3 is connected with the first baffle plate 12 and the side plate 2 through the connecting frame 31; and/or the end plate 3 is connected with the bottom plate 11 and the upper cover 7 through a connecting frame 31.

In this embodiment, four side walls of the connection frame 31 are all provided with fourth threaded holes, the first baffle 12, the upper cover 7, the side plate 2 and the bottom plate 11 are all provided with fourth connection holes, and fourth screws pass through the fourth connection holes and are screwed with the fourth threaded holes. Of course, in other embodiments, the connection frame 31 may be connected only to the first baffle plate 12 and the side plate 2 which are oppositely arranged, or only to the bottom plate 11 and the upper cover 7 which are oppositely arranged.

Optionally, the first baffle plate 12 and the side plate 2 are connected with the upper cover 7; and/or the second end plate 13 and the end plate 3 are connected with the upper cover 7.

In the present embodiment, the upper cover 7 is connected to each of the first barrier 12, the second barrier 13, the side plate 2, and the end plate 3. Specifically, the upper cover 7 includes an upper cover body 71 and a second connecting plate 72 perpendicular to the upper cover body 71, the number of the second connecting plates 72 is three, and the upper ends of the first baffle plate 12, the second baffle plate 13 and the side plate 2 are provided with third connecting plates 8 connected with the second connecting plates 72 in a matching manner. A third connecting hole is formed in the second connecting plate 72, a third threaded hole 82 is formed in the third connecting plate 8 corresponding to the third connecting hole, and a third screw penetrates through the third connecting hole and is in threaded connection with the third threaded hole 82.

Of course, in other embodiments, the upper cover 7 may be connected only to the first baffle plate 12 and the side plate 2 which are oppositely arranged, or only to the second baffle plate 13 and the end plate 3 which are oppositely arranged.

As an alternative of the battery pack, a fixing member 81 is disposed on the third connecting plate 8 at the upper end of the first baffle 12 and/or the third connecting plate 8 at the upper end of the side plate 2, and the fixing member 81 is used for fixing the collecting harness of the battery core 100. The fixing member 81 is provided as a fixing ring, and concentrates the collecting wire harness of each of the battery cells 100 to the fixing ring.

In this embodiment, two rows of battery cells 100 are provided in the battery pack, two fixing rings are provided on the third connecting plate 8 at the upper end of the first baffle 12, the two fixing rings are provided corresponding to the two rows of battery cells 100, and the collecting harnesses of the battery cells 100 located in the same row are all fixed on the fixing rings corresponding thereto.

Of course, in other embodiments, the number of the fixing rings is not limited, and the fixing rings may be provided only on the third connecting plate 8 at the upper end of the side plate 2; or, the third connecting plate 8 at the upper end of the first baffle plate 12 and the third connecting plate 8 at the upper end of the side plate 2 are both provided with fixing rings.

In order to facilitate the handling of the battery pack, the first baffle 12 and/or the outer wall of the side plate 2 is provided with a handle 9.

In this embodiment, the outer wall of first baffle 12 and curb plate 2 all is provided with handle 9, through two handle 9 transport battery package, convenient laborsaving.

Of course, in other embodiments, the battery pack can be carried by one handle 9, and the one handle 9 can be arranged on the outer wall of the first baffle plate 12 or the outer wall of the side plate 2.

As an alternative to the battery pack, the battery pack further includes a second connector 6, and the second connector 6 is used to fix the battery pack. The number of the second connecting pieces 6 is two, the outer walls of the side plates 2 and the outer wall of the first baffle plate 12 are respectively provided with one second connecting piece 6, and the battery pack is fixed through the two second connecting pieces 6.

The second connecting piece 6 is an angle steel, one side wall of the angle steel is provided with a fifth connecting hole, fifth threaded holes are formed in the side plate 2 and the first baffle plate 12 and correspond to the fifth connecting hole, and a fifth screw penetrates through the fifth connecting hole to be in threaded connection with the fifth threaded holes. The other side wall is provided with a waist-shaped hole, and the battery pack is fixed at the installation position of the electric equipment through the waist-shaped hole.

The battery pack provided by the embodiment can be applied to electric equipment such as communication products or vehicles, the safety performance of the communication products or vehicles using the battery pack is improved, the processing procedure is simple, the material and labor cost are saved, and the cost of the communication products or vehicles is reduced.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A battery pack, comprising:

the frame body (1) comprises a bottom plate (11), and a first baffle plate (12) and a second baffle plate (13) which are respectively connected with two adjacent sides of the bottom plate (11), wherein a plurality of battery cells (100) are arranged on the bottom plate (11) in parallel and are fixedly adhered to the bottom plate (11);

the side plates (2) and the end plates (3) are respectively connected to two adjacent sides of the bottom plate (11), the side plates (2) are arranged opposite to the first baffle (12), the end plates (3) are arranged opposite to the second baffle (13), and the side plates (2) and the first baffle (12) jointly apply clamping force to the plurality of battery cores (100); and/or the end plate (3) and the second baffle (13) jointly exert clamping force on the plurality of battery cells (100).

2. The battery pack according to claim 1, wherein the gluing path on the bottom plate (11) is S-shaped, and the glue overflow area is greater than 80% of the contact area between the battery cell (100) and the bottom plate (11).

3. The battery pack according to claim 1, wherein the side plate (2) and the first baffle (12) are provided with a limiting structure (4), the limiting structure (4) is arranged to protrude from an inner wall of the side plate (2) and an inner wall of the first baffle (12), and a clamping force is applied to the plurality of battery cells (100) through the two limiting structures (4).

4. The battery pack according to claim 3, wherein a buffer groove (41) is formed on one side of the limiting structure (4) close to the battery core (100).

5. The battery pack according to claim 1, further comprising a limiting barrier (5), wherein the limiting barrier (5) is located between the battery core (100) and the end plate (3), and two ends of the limiting barrier (5) are respectively connected to the side plate (2) and the first baffle (12).

6. The battery pack according to claim 1, wherein the inner wall of the second shutter (13) is provided with a buffering protrusion (131).

7. The battery pack according to claim 1, wherein a first connector (112) is provided on the bottom plate (11), and the side plate (2) is connected to the bottom plate (11) through the first connector (112).

8. The battery pack according to claim 7, wherein the first connecting member (112) comprises a first connecting plate (1121) and a first limiting plate (1122), the first connecting plate (1121) is connected to the side plate (2), the first limiting plate (1122) is arranged in a plurality of spaced positions, the first limiting plates (1122) are perpendicular to the first connecting plate (1121) and face the first baffle (12), and the first limiting plates (1122) are used for limiting the positions of the battery cells (100).

9. The battery pack according to claim 1, further comprising an upper cover (7), wherein the first baffle plate (12) and the side plate (2) are connected to the upper cover (7); and/or the presence of a gas in the gas,

the second baffle (13) and the end plate (3) are connected with the upper cover (7).

10. The battery pack according to claim 9, wherein the upper cover (7) comprises an upper cover body (71) and a second connecting plate (72) perpendicular to the upper cover body (71), the second connecting plate (72) is provided in plurality, and the upper ends of the first baffle (12), the second baffle (13) and the side plates (2) are provided with third connecting plates (8) cooperatively connected with the second connecting plate (72).

11. The battery pack according to claim 10, wherein a fixing member (81) is disposed on the third connecting plate (8) at the upper end of the first baffle (12) and/or the third connecting plate (8) at the upper end of the side plate (2), and the fixing member (81) is used for fixing a collecting harness of the battery core (100).

12. The battery pack according to claim 9, wherein a connecting frame (31) is provided on a side of the end plate (3) adjacent to the second barrier (13), and the end plate (3) is connected to the first barrier (12) and the side plate (2) via the connecting frame (31); and/or the presence of a gas in the gas,

the end plate (3) is connected with the bottom plate (11) and the upper cover (7) through the connecting frame (31).

13. Battery pack according to any of claims 1-12, characterized in that the outer wall of the first flap (12) and/or the side plate (2) is provided with a handle (9).

14. A battery pack according to any of claims 1-12, further comprising a second connector (6), the second connector (6) being adapted to secure the battery pack.