CN218887411U - Battery pack and battery system - Google Patents

Abstract

The utility model relates to a battery technology field, concretely relates to battery package and battery system. The battery pack includes: the battery box comprises a box body, an extension part and a connecting piece, wherein the box body is provided with a frame, and a battery cell is suitable to be placed in the box body; the extending part is fixedly arranged on the frame and protrudes out of the peripheral surface of the frame; the connecting piece is detachably connected with the extending part and is suitable for being detachably connected with the external fixing piece so as to fix the box body. The extending parts are fixedly arranged on the outer peripheral surfaces of the frames, and the connecting pieces are detachably connected with the extending parts, so that the matching of different external fixing pieces can be realized by replacing the connecting pieces with different sizes, the structure of the box body is kept unchanged, the size of the connecting piece to be replaced is relatively small, the box body is convenient to disassemble and assemble and replace, and the working efficiency is improved; when external structures such as vehicles of installation battery package bump and extrude, the connecting piece can also protect the box, only need when the maintenance change the connecting piece can, promote the box security, reduce after-sale cost of maintenance.

Description

Battery pack and battery system

Technical Field

The utility model relates to a battery technology field, concretely relates to battery package and battery system.

Background

The battery pack is used as an important power part of a new energy automobile, and the structure of the battery pack is often complex. The box body of the battery pack is a main body supporting structure of the battery pack, which not only plays a role of accommodating and supporting the battery core, but also needs to be connected with the body of the automobile, needs to be provided with circuit elements of a battery management system, and the like, so that the box body is usually provided with a plurality of different connecting structures to connect different parts or be connected with an external structure. However, most of the connecting structures on the box body in the prior art are integrally formed with the box body, have fixed sizes, are not beneficial to matching different parts or external structures, bring inconvenience to the assembly and disassembly of the box body and the connected parts thereof, and bring inconvenience to the use of the battery pack.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the inconvenient defect of connection structure dismouting on the box of the battery package among the prior art to a battery package and battery system of dismouting are carried out to the box of being convenient for is provided.

In order to solve the above problem, the utility model provides a battery pack, include: the box body is provided with a frame, and the battery cell is suitable to be placed in the box body; the extension part is fixedly arranged on the frame and protrudes out of the peripheral surface of the frame; and the connecting piece is detachably connected with the extension part and is suitable for being detachably connected with the external fixing piece so as to fix the box body.

Optionally, the connecting piece is in threaded connection with the extension part; and/or the connecting piece is in threaded connection with the external fixing piece.

Optionally, the distance H from the lower surface of the extension part to the lower surface of the box body is 3% -30% of the height H of the box body; and/or the distance a of the extending part protruding out of the peripheral surface of the frame is 0.5-6.5% of the width of the box body.

Optionally, the lower surface of the connecting piece is lower than the lower surface of the box body.

Optionally, the connecting piece includes a first connecting portion and a second connecting portion, the first connecting portion is connected with the extending portion, the second connecting portion is connected with the external fixing piece, and the thickness h2 of the first connecting portion is 0.5-2 times of the distance h from the lower surface of the extending portion to the lower surface of the box body.

Optionally, the battery pack further includes: an integrated circuit board; and the bracket component is detachably arranged on the frame and is suitable for clamping the integrated circuit board.

Optionally, the bracket assembly includes a first bracket and a second bracket, the first bracket is located above the second bracket, the first bracket and the second bracket are arranged at an interval, and the integrated circuit board is located between the first bracket and the second bracket.

Optionally, a protruding portion is disposed on the outer circumferential surface of the frame, and the first support and the second support are detachably connected to the protruding portion respectively.

Optionally, the first bracket, the second bracket and the integrated circuit board are connected by gluing, or the first bracket, the second bracket and the integrated circuit board are connected by an elastic material.

The utility model also provides a battery system, include: the battery pack is provided.

The utility model has the advantages of it is following:

1. the extending part is fixedly arranged on the outer peripheral surface of the frame, and the connecting piece is detachably connected with the extending part, so that the matching of different external fixing pieces can be realized by replacing the connecting pieces with different sizes, the structure of the box body is kept unchanged, the size of the connecting piece to be replaced is relatively small, the box body is convenient to disassemble and assemble and replace, and the working efficiency is improved; when external structures such as vehicles and the like provided with the battery packs collide and extrude, the box body can be protected by the connecting piece, namely the connecting piece bears the extrusion force to protect the box body from being damaged, and only the connecting piece needs to be replaced during maintenance, so that the safety of the box body is improved, and the after-sale maintenance cost is reduced; in addition, the size of the box body can be reduced, and the weight of the box body can be reduced.

2. The lowest point of the connecting piece is lower than the lowest point of the box body, so that the box body can be protected by the connecting piece contacting with a support or the ground when the battery pack is placed; and when the vehicle is in a working condition that the bottom of the vehicle is pressed through a deceleration strip or a road, the main body part of the battery pack is protected through the connecting piece.

3. Can dismantle the bracket component centre gripping integrated circuit board of being connected through setting up and frame, realize supporting and fixing the integrated circuit board, the mode of centre gripping is less to integrated circuit board's destructiveness, when needs assembly or dismantlement integrated circuit board, only need the dismouting bracket component can, the operation of being convenient for, easy dismounting.

4. Carry out the centre gripping restraint to integrated circuit board through two supports of upper and lower interval setting first support and second support, first support is connected with frame detachably from the top, the second support is connected with frame detachably from the below, thereby can assemble or dismantle first support or from below dismouting second support from the top, can realize assembling or dismantling integrated circuit board from two directions in top or below, in the actual operation, can come the optional operation direction according to the surrounding environment restriction, high selectivity, the operation of being convenient for, for the equipment of battery package and maintenance provide the convenience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a partially enlarged schematic view of portion A of FIG. 1;

fig. 3 shows a schematic front view of the battery pack of fig. 1;

FIG. 4 is an enlarged partial view of portion B of FIG. 3;

fig. 5 is a schematic view showing a structure of the battery pack of fig. 3 with the connector removed;

FIG. 6 is an enlarged partial schematic view of portion C of FIG. 5;

fig. 7 shows a schematic structural diagram of a connector according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating another view angle of a battery pack according to an embodiment of the present invention;

fig. 9 is a partially enlarged schematic view of the battery pack of fig. 8;

fig. 10 is a schematic view illustrating a connection structure between an ic board and a bracket assembly and a frame according to an embodiment of the present invention;

fig. 11 shows a schematic top view of the battery pack of fig. 1.

Description of the reference numerals:

10. a box body; 11. a frame; 111. an inner beam; 112. an outer edge beam; 12. an extension portion; 13. a boss portion; 20. a connecting member; 21. a first connection portion; 22. a second connecting portion; 30. an integrated circuit board; 40. a bracket assembly; 41. a first bracket; 42. a second bracket; 43. a bending part; 44. a limiting part; 50. an electric core; 61. a first threaded connection; 62. a second threaded connection.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

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 orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 11, a battery pack of the present embodiment includes: the battery cell protection device comprises a box body 10, an extension part 12 and a connecting piece 20, wherein the box body 10 is provided with a frame 11, and the box body 10 is suitable for placing a battery cell 50; the extension part 12 is fixedly arranged on the frame 11 and protrudes out of the peripheral surface of the frame 11; the connector 20 is detachably coupled to the extension 12 and is adapted to be detachably coupled to an external fixture to fix the housing 10.

The box body 10 is a main body supporting structure of the battery pack, the frame 11 is disposed around the box body 10 to form a side surface of the box body 10, and an outer peripheral surface of the frame 11 refers to a surface of the frame 11 facing the outer side of the box body 10; the external fixing member is used for fixing the box body 10 and can be a chassis of a vehicle or the like; the connecting member 20 for connecting the battery pack with the external fixing member in the prior art is usually integrally formed with the frame 11, and is not detachable, and when the battery pack needs to be matched with different vehicles, the box body 10 for replacing the whole battery pack needs to be adopted due to different shapes or sizes of the required connecting member 20, which brings inconvenience to the use of the battery pack.

By applying the battery pack of the embodiment, the extending part 12 is fixedly arranged on the outer peripheral surface of the frame 11, and the connecting part 20 is detachably connected with the extending part 12, so that the adaptation to different external fixing parts can be realized by replacing the connecting parts 20 with different sizes, the structure of the box body 10 is kept unchanged, the connecting parts 20 to be replaced are relatively small in size, convenient to assemble and disassemble and convenient to replace, and the working efficiency is improved; when external structures such as vehicles provided with battery packs collide and extrude, the connecting piece 20 can also protect the box body 10, namely the connecting piece 20 firstly bears extrusion force to protect the box body 10 from being damaged, and then only the connecting piece 20 needs to be replaced during maintenance, so that the safety of the box body is improved, and the after-sale maintenance cost is reduced; in addition, the size of the case 10 can be reduced, and the weight of the case 10 can be reduced.

Preferably, the connecting member 20 is a one-piece member, which is easy to install and has high strength. It will be appreciated that, as an alternative embodiment, the connecting member 20 may be formed by a plurality of separate components, and the structure is flexible and can be flexibly adjusted according to the specific structure of the connecting portion of the external fixing member.

Preferably, the connecting member 20 is formed by extrusion molding or die-casting of an integral aluminum alloy, and the connecting member 20 is made of a metal plate material suitable for stamping and welding.

Preferably, the extension portions 12 are provided on both sides of the case 10 in the "width direction" indicated by an arrow in fig. 11, or both sides in the "front-rear direction" indicated by an arrow in fig. 11, or on three sides of both sides in the "width direction" and the rear side in the "front-rear direction"; the extension 12 is provided with a through hole or a threaded hole, and is connected to the connector 20 through a threaded connector, or connected to the connector 20 through a rivet/press nut, or the like.

In the present embodiment, the connector 20 is threadedly coupled to the extension 12; the connector 20 is threadedly coupled to the external fixture. The threaded connection is convenient to disassemble and assemble, firm in connection and high in reliability. Specifically, the connector 20 is connected to the extension 12 by a first threaded connector 61, and the connector 20 is connected to the external fixture by a second threaded connector 62. Alternatively, the first and second threaded connectors 61 and 62 are bolts or screws, which are common, readily available, and low cost.

Preferably, the thickness t of the extension 12 is 0.4 to 3 of the diameter of the first threaded connector 61.

In this embodiment, the extension portion 12 is disposed at a position close to the lower surface of the box 10, and a distance H from the lower surface of the extension portion 12 to the lower surface of the box 10 is 3% to 30% of a height H of the box 10, which is beneficial to structural stability, and correspondingly, the connection member 20 is mounted at a position close to the lower surface of the box 10, and preferably, the distance H from the lower surface of the extension portion 12 to the lower surface of the box 10 has a value range of 5 mm to 30mm. It is understood that, as an alternative embodiment, the extension part 12 may be disposed at a position close to the upper surface of the case 10, in this case, the extension part 12 is vertically symmetrical to the structure shown in fig. 4, the distance between the upper surface of the extension part 12 and the upper surface of the case 10 is H, and H is 3% to 30% of the height H of the case 10, and the structural stability may also be achieved, and correspondingly, the connection part 20 is installed at a position close to the upper surface of the case 10. Wherein the lower surface means a surface in a direction of "down" indicated by an arrow in fig. 4; the upper surface refers to a surface in a direction indicated by an arrow "up" in fig. 4.

In this embodiment, the distance a that the extension portion 12 protrudes from the outer circumferential surface of the frame 11 is 0.5% to 6.5% of the width of the box 10, so that not only can the reliable connection with the connection member 20 be ensured and a sufficient installation position be provided for the installation of the connection member 20, but also the outward extension size of the box 10 can be minimized and the volume can be reduced. Here, the width of the case 10 refers to a dimension W of the case 10 in a "width direction" indicated by an arrow in fig. 5. Preferably, the distance a of the extension 12 protruding the outer peripheral surface of the frame 11 ranges from 10 to 60mm.

In the present embodiment, when the extension 12 is disposed at a position close to the lower surface of the housing 10, the lower surface of the connection member 20 is lower than the lower surface of the housing 10. That is, the lowest point of the connecting member 20 is lower than the lowest point of the case body 10, so that the case body 10 can be protected by the connecting member 20 contacting with a support or the ground when the battery pack is placed; and when the vehicle is in a working condition of pressing and dragging the bottom through a speed bump or a road, the main body part of the battery pack is protected through the connecting piece 20. Wherein the lower surface refers to a surface in a direction in which an arrow indicates "down" in fig. 4.

In this embodiment, the connection member 20 includes a first connection portion 21 and a second connection portion 22, the first connection portion 21 is fixedly connected to the second connection portion 22, the first connection portion 21 is connected to the extension portion 12, and the second connection portion 22 is connected to the external fixing member, so that the connection between the box 10 and the external fixing member through the connection member 20 is achieved, and the structure is simple and the connection reliability is high. The thickness h2 of the first connection portion 21 is 0.5-2 times the distance h from the lower surface of the extension portion 12 to the lower surface of the case 10, and sufficient connection strength can be provided, specifically, the thickness h2 of the first connection portion 21 ranges from 4 to 30mm, preferably, when the connection member 20 is disposed at a position close to the lower surface of the case 10, the thickness h2 of the first connection portion 21 has a value greater than 8mm, and in an assembled state of the connection member 20 and the case 10, the lowest point of the first connection portion 21 is lower than the lowest point of the first threaded connection member 61, so that the first threaded connection member 61 can be protected, the first threaded connection member 61 is prevented from being loosened due to collision, and the structural stability is improved.

Preferably, the first threaded connecting piece 61 adopts M6-M10 bolts, the second threaded connecting piece 62 adopts M10-M12 bolts, the first threaded connecting piece 61 adopts bolts with smaller diameters to reduce the occupied space of the box body 10, and the second threaded connecting piece 62 adopts bolts with relatively larger diameters to reduce the number of bolt connections, thereby facilitating the disassembly and assembly.

Preferably, the number of first threaded connections 61 is greater than or equal to the number of second threaded connections 62.

In this embodiment, the battery pack further includes: the integrated circuit board assembly comprises an integrated circuit board 30 and a bracket assembly 40, wherein the bracket assembly 40 is detachably arranged on the frame 11 and is suitable for clamping the integrated circuit board 30. Can dismantle bracket component centre gripping integrated circuit board 30 of being connected through setting up and frame 11, realize support and fixed to integrated circuit board 30, the mode of centre gripping is less to integrated circuit board 30's destructiveness, when needs assembly or dismantlement integrated circuit board 30, only need dismouting bracket component 40 can, be convenient for operate easy dismounting. It should be noted that the integrated circuit board 30 is used to collect or process the cell signals and interact with a battery management system or a vehicle management system.

In the present embodiment, the bracket assembly 40 includes a first bracket 41 and a second bracket 42, the first bracket 41 is located above the second bracket 42, the first bracket 41 and the second bracket 42 are arranged at an interval, the integrated circuit board 30 is located between the first bracket 41 and the second bracket 42, and the first bracket 41 and the second bracket 42 constrain two opposite edges of the integrated circuit board 30 from two opposite directions. Set up two supports of first support 41 and second support 42 through upper and lower interval and carry out the centre gripping restraint to integrated circuit board 30, first support 41 is connected with frame 11 detachably from the top, second support 42 is connected with frame 11 detachably from the below, thereby can assemble or dismantle first support 41 or from below dismouting second support 42 from the top, can realize assembling or dismantling integrated circuit board 30 from top or two directions in below, in the actual operation, can select the operation direction according to the surrounding environment restriction, the alternative is high, and convenient operation provides the convenience for the equipment and the maintenance of battery package. Here, up and down refer to directions of "up and down" indicated by arrows in fig. 10.

It should be noted that, the integrated circuit board 30 in the battery pack in the prior art is usually directly connected and fixed to the frame 11 by bolts, but the bolt fixing manner has directionality, and can only be assembled and disassembled from a fixed direction, and the integrated circuit board 30 cannot be assembled and disassembled from different directions, which brings inconvenience to the operation.

In this embodiment, a protruding portion 13 is disposed on the outer peripheral surface of the frame 11, the protruding portion 13 protrudes out of the outer peripheral surface of the frame 11, the first bracket 41 and the second bracket 42 are detachably connected to the protruding portion 13, the protruding portion 13 provides a connection position for the first bracket 41 and the second bracket 42, the first bracket 41 is connected to the upper surface of the protruding portion 13, and the second bracket 42 is connected to the lower surface of the protruding portion 13, so as to facilitate the operation of detaching and installing the first bracket 41 and the second bracket 42. Here, the upper surface refers to a surface in a direction of "upper" indicated by an arrow in fig. 10, and the lower surface refers to a surface in a direction of "lower" indicated by an arrow in fig. 10.

Preferably, the first bracket 41 and the second bracket 42 are in threaded connection with the boss 13, and specifically, the first bracket 41 and the second bracket 42 are connected with the boss 13 through bolts or screws, which are easily available, low in cost, good in connection stability and convenient to disassemble and assemble.

Preferably, the protruding portion 13 is disposed on the outer side beam 112 toward one side of the inner side beam 111, wherein the outer side beam 112 and the inner side beam 111 are disposed on one side of the box body 10 to jointly form the frame 11 of the side, the outer side beam 112 is disposed on the outer side of the inner side beam 111, the outer side beam 112 and the inner side beam 111 are disposed at an interval, and the protruding portion 13 is disposed between the outer side beam 112 and the inner side beam 111, so that the bracket assembly 40 is disposed between the outer side beam 112 and the inner side beam 111, when the frame 11 deforms under the external force, the bracket assembly 40 abuts against the outer side beam 112 and the inner side beam 111 to form a supporting effect, increase a force transmission path, and improve the structural strength. Wherein, the outer side means a side toward the outside of the case 10.

In the present embodiment, the first bracket 41 and the second bracket 42 are connected to the integrated circuit board 30 by gluing. When the integrated circuit board 30 is disassembled, the disassembly can be realized by destroying the adhesive connection, and the operation is convenient. Preferably, the first bracket 41 and the second bracket 42 are fixed to the integrated circuit board 30 by gluing with double-sided tape, structural adhesive, or the like. It will be appreciated that, as an alternative embodiment, the connection between the first and second brackets 41, 42 and the integrated circuit board 30 is made by an elastic material, and when the bracket assembly 40 is connected to the boss 13 in the assembled state, the constraint on the integrated circuit board 30 is formed by compressing the elastic material to deform, which also facilitates the assembly and disassembly of the integrated circuit board 30 and is more convenient than an adhesive connection.

Preferably, the first and second supports 41 and 42 are bent, a bent portion 43 is formed at a middle portion of the supports, a distance between the first and second supports 41 and 42 is greater at an end connected to the integrated circuit board 30 than at an end connected to the protruding portion 13, and the bent portion 43 has a certain elastic deformation capability so as to clamp the integrated circuit board 30 by elastic deformation thereof.

Preferably, the first bracket 41 and the second bracket 42 further have a limiting portion 44, the integrated circuit board 30 is clamped at the limiting portion 44 to limit the integrated circuit board 30, and specifically, the limiting portion 44 is a groove structure or other common limiting structure features.

It is preferable that the height of the integrated circuit board 30, which is a dimension in the "up and down" direction indicated by the arrow in fig. 10, is 0.4 to 0.8 times the height of the battery pack to ensure structural stability.

Optionally, the number of the integrated circuit boards 30 is one or more, correspondingly, the number of the bracket assemblies 40 is equal to the number of the integrated circuit boards 30, and each bracket assembly 40 holds and fixes one integrated circuit board 30, and the specific number can be designed according to the actual requirement of the battery pack.

The utility model also provides a battery system, it includes: the battery pack is used for a vehicle or an energy storage system.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the size of the main body part of the box body 10 is reduced, more vehicles can be adapted by replacing the connecting piece 20, the development period and the cost of the battery pack are reduced, and the wide applicability of products is increased.

2. The bottom of the connecting piece 20 is lower than the bottom of the box 10, so that the bottom of the box 10 can be protected when passing through a speed bump, a road edge and the like.

3. The connecting member 20 can bear the external force to press and protect the case 10.

4. The connecting member 20 may be made of a material different from that of the box 10, so as to achieve a matching design with different requirements of reinforcement, cost reduction, weight reduction, and the like.

5. The integrated circuit board 30 is fixedly restrained in a clamping manner by using a bracket assembly 40, and the bracket assembly 40 comprises a first bracket 41 and a second bracket 42 which are arranged at intervals up and down, so that the integrated circuit board 30 can be conveniently detached from different directions and can be compatible with the integrated circuit boards 30 with different specifications.

6. The bracket component 40 is arranged between the outer side beam 112 and the inner side beam 111, and when the battery pack is extruded by external force, the bracket component 40 can increase a force transmission channel to play a supporting role and protect the frame 11.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims (10)

1. A battery pack, comprising:

the battery box comprises a box body and a battery cover, wherein the box body is provided with a frame and is suitable for placing a battery cell;

the extension part is fixedly arranged on the frame and protrudes out of the peripheral surface of the frame;

and the connecting piece is detachably connected with the extending part and is suitable for being detachably connected with an external fixing piece so as to fix the box body.

2. The battery pack of claim 1, wherein the connector is threadedly connected to the extension;

and/or the connecting piece is in threaded connection with the external fixing piece.

3. The battery pack according to claim 1, wherein a distance H from a lower surface of the extension portion to a lower surface of the case is 3% to 30% of a height H of the case, or a distance H from an upper surface of the extension portion to an upper surface of the case is 3% to 30% of the height H of the case;

and/or the distance a of the extending part protruding out of the peripheral surface of the frame is 0.5% -6.5% of the width of the box body.

4. The battery pack according to claim 1, wherein the lower surface of the connector is lower than the lower surface of the case.

5. The battery pack according to claim 1, wherein the connecting member includes a first connecting portion connected to the extending portion and a second connecting portion connected to the external fixing member, and a thickness h2 of the first connecting portion is 0.5 to 2 times a distance h from a lower surface of the extending portion to a lower surface of the case.

6. The battery pack according to any one of claims 1 to 5, further comprising:

an integrated circuit board;

the bracket component is detachably arranged on the frame and is suitable for clamping the integrated circuit board.

7. The battery pack of claim 6, wherein the bracket assembly comprises a first bracket and a second bracket, the first bracket is positioned above the second bracket and the first bracket and the second bracket are spaced apart, and the IC board is positioned between the first bracket and the second bracket.

8. The battery pack according to claim 7, wherein a protrusion is provided on an outer circumferential surface of the frame, and the first holder and the second holder are detachably connected to the protrusion, respectively.

9. The battery pack according to claim 7, wherein the first bracket, the second bracket, and the ic board are connected by gluing, or the first bracket, the second bracket, and the ic board are connected by an elastic material.

10. A battery system, comprising: the battery pack according to any one of claims 1 to 9.

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