CN217788682U

CN217788682U - Multifunctional battery box

Info

Publication number: CN217788682U
Application number: CN202221102087.XU
Authority: CN
Inventors: 朱中槐; 韦银涛; 龚木红
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-11-11
Anticipated expiration: 2032-05-09

Abstract

The utility model belongs to the technical field of new forms of energy power battery, a multifunctional battery box is disclosed, including box and case lid, still include: the fixing hole groups of one kind are used for installing the battery modules of one kind; the second type of switching hole group is used for installing a second type of battery module; the switching support, the switching support with the box can be dismantled and be connected, second switching punch combination sets up on the switching support, the installation that can compatible multiple battery module reduces manufacturing cost.

Description

Multifunctional battery box

Technical Field

The utility model relates to a new forms of energy power battery technical field especially relates to a multifunctional battery box.

Background

In recent years, new energy vehicles are rapidly developed, new energy electric vehicles are more and more widely applied, and the battery box is used as an important component in a battery system and plays a role in bearing and protecting the battery module.

Current battery box all designs and customizes to specific battery module structure, and one set of box corresponds a battery module. In the battery system development process, when there are multiple different battery modules, just need design multiple different battery boxes alone, lead to the commonality of battery box poor, product development cycle and production cycle are longer, and research and development cost is high, and the mould of box is with high costs, causes the manufacturing cost of battery box higher from this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multifunctional battery box, the installation that can compatible multiple battery module reduces production manufacturing cost.

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

a multifunctional battery box, includes box and case lid, the box has mutually perpendicular's first direction and second direction, still includes:

the first fixed hole group and the second fixed hole group respectively comprise a plurality of fixed holes, and the first fixed hole group is used for installing a first battery module;

the second type of switching hole groups are arranged on the box body and comprise a first switching hole group and a second switching hole group which are respectively arranged on two opposite sides of the box body, the first switching hole group and the second switching hole group respectively comprise a plurality of switching holes, and the second type of switching hole groups are used for installing second type of battery modules;

the switching support is detachably connected with the box body, and the second switching hole group is arranged on the switching support.

Preferably, the box body is provided with a first hole site setting plate group and a second hole site setting plate group, the first fixed hole group is arranged on the first hole site setting plate group, and the second fixed hole group is arranged on the second hole site setting plate group.

Preferably, the first porthole group is provided on the first porthole provision plate group.

Preferably, reinforcing ribs are connected between the first hole site setting plate group and the second hole site setting plate group and the box body respectively.

Preferably, the box body is provided with a mounting block, and a switching fixing bolt is connected between the mounting block and the switching bracket.

Preferably, the bottom of the switching support is provided with a mounting groove, and the mounting groove is used for the mounting block to extend into.

Preferably, the box body is provided with a plurality of supporting blocks, and the supporting blocks extend into the mounting grooves and are abutted to the switching support.

Preferably, the multifunctional battery box further comprises a battery management unit bracket, and the battery management unit bracket is provided with two battery management units.

Preferably, the battery management unit support comprises:

the bracket body is used for mounting one battery management unit and is detachably connected with the box cover;

and the connecting plate is used for mounting the other battery management unit and is fixedly connected with the bracket body.

Preferably, the support body is provided with a heat dissipation through groove, and the two battery management units are respectively arranged on two sides of the heat dissipation through groove.

The utility model has the advantages that:

the utility model provides a multifunctional battery box, when installing a type of battery module, need not to install the switching support, as long as through a type of fixed punch combination with a type of battery module install on the box can, when needs install two types of battery modules, with the switching support mounting on the box, rethread two types of switching punch combinations with two types of battery modules install on the box can for multifunctional battery box can compatible multiple battery module's installation, has reduced the production manufacturing cost of battery box.

Drawings

Fig. 1 is a schematic structural view of a multifunctional battery box of the present invention;

FIG. 2 is a schematic structural view of a first fixed hole set and a second fixed hole set according to the present invention;

fig. 3 is a schematic structural view of a type of battery module of the present invention mounted on a box body;

FIG. 4 is a schematic structural diagram of a first through hole set and a second through hole set in the present invention;

fig. 5 is a schematic structural view of the second-class battery module of the present invention mounted on the box body;

fig. 6 is a partial schematic view of the adaptor rack structure according to the present invention;

fig. 7 is an exploded view of the multifunctional battery box of the present invention;

FIG. 8 is a partial enlarged view at A in FIG. 7;

fig. 9 is an exploded view of the battery management unit bracket and the battery management unit of the present invention.

In the figure:

1. a box body; 11. a first hole site setting plate group; 111. a first hole site setting plate; 112. a second hole site setting plate; 113. a third aperture position setting plate; 114. a fourth hole position setting plate; 12. a second hole site setting plate group; 121. a fifth hole position setting plate; 122. a sixth hole position setting plate; 123. a seventh hole position setting plate; 124. an eighth hole position setting plate; 125. a ninth hole position setting plate; 126. a tenth hole site setting plate; 13. mounting blocks; 14. a support block; 15. reinforcing ribs; 16. maintaining the window; 17. a maintenance switch; 18. a heat dissipation channel; 2. a box cover; 21. closing the fastening bolt; 22. a second knock-down plate; 221. disassembling the bolt; 3. a group of fixed holes; 31. a first set of fixed holes; 311. a first fixing hole; 312. a second fixing hole; 313. a third fixing hole; 314. a fourth fixing hole; 315. a fifth fixing hole; 316. a sixth fixing hole; 32. a second set of anchor holes; 321. a seventh fixing hole; 322. an eighth fixing hole; 323. a ninth fixing hole; 324. a tenth fixing hole; 325. an eleventh fixing hole; 326. a twelfth fixing hole; 4. a first-type battery module; 41. a set of anchor bolts; 5. a second type of switching hole group; 51. a first group of transfer holes; 511. a first switch hole; 512. a second transfer hole; 513. a third transfer hole; 514. a fourth switch hole; 515. a fifth transfer hole; 516. a sixth transfer port; 52. a second group of transfer holes; 521. a seventh transfer port; 522. an eighth switching hole; 523. a ninth transfer port; 524. a tenth switch hole; 525. a tenth transfer port; 526. a twelfth transfer port; 6. a second type battery module; 61. a second type of set bolt; 7. a transfer bracket; 71. a fixed bolt is connected in a switching way; 72. mounting grooves; 8. a battery management unit support; 81. a stent body; 811. a heat dissipation through groove; 812. a placement groove; 8121. a first connecting bolt; 813. a first stripper plate; 82. a connecting plate; 821. a second mounting bolt; 9. a battery management unit; 91. an extension plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

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; either directly or indirectly through intervening media, either internally or in any other relationship. 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 disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely 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", etc. are used in an orientation or positional relationship based on that 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 particular orientation, be constructed and operated in a particular orientation, 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 have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the present embodiment provides a multifunctional battery box, which includes a box body 1 and a box cover 2, wherein the box body 1 is provided with a first-type fixing hole group 3 for installing and fixing a first-type battery module 4, and a second-type switching hole group 5 for installing and fixing a second-type battery module 6. The box body 2 is detachably connected with a switching support 7, one part of the second type switching hole group 5 is arranged on the switching support 7, when one type of battery module 4 is installed, the switching support 7 does not need to be installed, and one type of battery module 4 is installed on the box body 1 through the first type of fixing hole group 3; when needing to install two types of battery modules 6, install switching support 7 on box 2, rethread two types of switching punch combination 5 with two types of battery modules 6 install on box 1 can, the installation of multi-functional battery box compatible multiple battery module has reduced the manufacturing cost of battery box.

The box body 1 has a first direction and a second direction perpendicular to each other, and in this embodiment, the first direction is an X direction shown in fig. 1, that is, a width direction of the box body 1; the second direction is the Y direction shown in fig. 1, i.e., the longitudinal direction of the case body 1, and the Z direction shown in fig. 1 is the height direction of the multifunctional battery case. The modules in one type of battery modules 4 are different in size in the first direction and the same in size in the second direction, i.e., the modules in one type of battery modules 4 have different width sizes and the same length size; the modules in the second type of battery modules 6 have different sizes in the first direction and the same size in the second direction, and the first type of battery modules 4 and the second type of battery modules 6 have different sizes in the second direction, that is, the modules in the second type of battery modules 6 have different width sizes and the same length sizes, and the length sizes of the modules in the second type of battery modules 6 are different from the length sizes of the modules in the first type of battery modules 4; the one-type battery module 4 and the second-type battery module 6 cover various sizes of battery module types.

As shown in fig. 2, the box body 1 is provided with a first hole site setting plate group 11 and a second hole site setting plate group 12, and the first hole site setting plate group 11 and the second hole site setting plate group 12 are respectively disposed on two sides of the box body 1 in the width direction.

Specifically, first hole site sets up board group 11 includes first hole site sets up board 111, second hole site sets up board 112, third hole site sets up board 113 and fourth hole site sets up board 114 that arrange along box 1 width direction in proper order, is connected with strengthening rib 15 between first hole site sets up board group 11 and the box 1, and strengthening rib 15 can increase the joint strength of first hole site sets up board group 11 and box 1, and then increases the structural strength of battery box. The number and the positions of the hole position setting plates in the first hole position setting plate group 11 can be flexibly designed according to specific use conditions and market requirements.

The second hole site setting plate group 12 includes a fifth hole site setting plate 121, a sixth hole site setting plate 122, a seventh hole site setting plate 123, an eighth hole site setting plate 124, a ninth hole site setting plate 125 and a tenth hole site setting plate 126 which are sequentially arranged along the width direction of the box body 1, and a reinforcing rib 15 is connected between the second hole site setting plate group 12 and the inner wall of the box body 1 to increase the connection strength between the second hole site setting plate group 12 and the box body 1, and further increase the structural strength of the battery box. When making the battery module install in the battery box, increase the gap between battery module and battery box inner wall for the battery box has better radiating effect. The number and positions of the hole position setting plates in the second hole position setting plate group 12 can be flexibly designed according to specific use conditions and market requirements.

The fixing hole groups 3 of one kind include a first fixing hole group 31 and a second fixing hole group 32, and the first fixing hole group 31 and the second fixing hole group 32 are respectively arranged at both sides of the case 1 in the width direction.

Specifically, the first fixing hole group 31 includes a first fixing hole 311, a second fixing hole 312, a third fixing hole 313, a fourth fixing hole 314, a fifth fixing hole 315, and a sixth fixing hole 316 that are arranged in this order in the width direction of the case 1. Among them, the first fixing hole 311 is provided on the first hole position setting plate 111, the second fixing hole 312 and the third fixing hole 313 are provided on the second hole position setting plate 112, the fourth fixing hole 314 and the fifth fixing hole 315 are provided on the third hole position setting plate 113, and the sixth fixing hole 316 is provided on the fourth hole position setting plate 114. The number and position of the fixing holes in the first fixing hole group 31 can be flexibly designed according to specific use conditions and market requirements.

The second fixing hole group 32 includes a seventh fixing hole 321, an eighth fixing hole 322, a ninth fixing hole 323, a tenth fixing hole 324, an eleventh fixing hole 325, and a twelfth fixing hole 326, which are arranged at a time in the width direction of the case 1. Wherein, the seventh fixing hole 321 is disposed on the fifth hole position setting plate 121, the eighth fixing hole 322 is disposed on the sixth hole position setting plate 122, the ninth fixing hole 323 is disposed on the seventh hole position setting plate 123, the tenth fixing hole 324 is disposed on the eighth hole position setting plate 124, the eleventh fixing hole 325 is disposed on the ninth hole position setting plate 125, and the twelfth fixing hole 326 is disposed on the tenth hole position setting plate 126. The number and position of the fixing holes in the second fixing hole group 32 can be flexibly designed according to specific use cases and market requirements.

As shown in fig. 2 and 3, the distance between the first fixing hole group 31 and the second fixing hole group 32 corresponds to the installation dimension of the battery module 4 of one kind in the longitudinal direction, and the battery module 4 of one kind is installed and fixed to the case 1 by using the fixing bolt group 41 of one kind in cooperation with the fixing hole group 3 of one kind.

As shown in FIG. 4, the second type of through-hole sets 5 includes a first through-hole set 51 and a second through-hole set 52, and the first through-hole set 51 and the second through-hole set 52 are respectively disposed at two sides of the housing 1 in the width direction.

Specifically, the first transfer hole group 51 includes a first transfer hole 511, a second transfer hole 512, a third transfer hole 513, a fourth transfer hole 514, a fifth transfer hole 515, and a sixth transfer hole 516, which are sequentially arranged in the width direction of the case 1. The first hole position setting plate group 51 is arranged on the first hole position setting plate group 11, and the first hole position setting plate group 51 is adjacent to the first fixing hole group 31, so that the space utilization rate in the battery box is improved. Among them, the first switch hole 511 is disposed on the first hole site setting plate 111, the second switch hole 512 and the third switch hole 513 are disposed on the second hole site setting plate 112, the fourth switch hole 514 and the fifth switch hole 515 are disposed on the third hole site setting plate 113, and the sixth switch hole 516 is disposed on the fourth hole site setting plate 114. The number and the position of the switching holes in the first switching hole group 51 can be flexibly designed according to specific use conditions and market requirements.

The box body 1 is provided with a switching bracket 7, the switching bracket 7 is parallel to the width direction of the box body 1, and the second switching hole group 52 is arranged on the switching bracket 7. Specifically, the second through hole group 52 includes a seventh through hole 521, an eighth through hole 522, a ninth through hole 523, a tenth through hole 524, an eleventh through hole 525 and a twelfth through hole 526 which are sequentially arranged along the width direction of the box body 1 and are opened on the through bracket 7. The number and the position of the holes in the second set of holes 52 can be flexibly designed according to specific use cases and market requirements.

As shown in fig. 4 and 5, the distance between the first and second through

holes

51 and 52 corresponds to the mounting dimension of the second-type battery module 6 in the longitudinal direction, and the second-type battery module 6 is mounted and fixed to the case 1 by the use of the second-type fixing bolt set 61 in cooperation with the second-type through hole set 5.

As shown in fig. 6, the bottom of the adaptor bracket 7 is provided with mounting grooves 72, and the mounting grooves 72 penetrate through both ends of the adaptor bracket 7. The case 1 is provided with one mounting block 13 and three support blocks 14. Installation piece 13 is L shape, one side is fixed with the laminating of box 1 inner wall, another side extends to box 1 is inside, extending direction is parallel with box 1's width direction, installation piece 13 is located the one end of the length direction of switching support 7 mounting groove 72, installation piece 13 deepens in mounting groove 72, the lateral wall of installation piece 13 and the inside wall butt of mounting groove 72, the roof of installation piece 13 and the groove top butt of mounting groove 72, the terminal surface of switching support 7 and the inner wall butt of box 1. The length direction of a plurality of supporting shoe 14 edge mounting groove 72 is arranged, and in the supporting shoe 14 stretched into mounting groove 72, the lateral wall of supporting shoe 14 and the inside wall butt of mounting groove 72, the roof of supporting shoe 14 and the groove top butt of mounting groove 72. A switching fixing bolt 71 is connected between the mounting block 13 and the switching bracket 7, a switching fixing bolt 71 is also connected between the support block 14 and the switching bracket 7, the switching fixing bolt 71 enables the switching bracket 7 and the box body 1 to be detachably and fixedly connected, and besides a bolt connection mode, other detachable and fixed connection modes, such as clamping, plugging and the like, can be adopted. Installation piece 13 and supporting shoe 14 play the effect of location and support to switching support 7, and the installation of switching support 7 from top to bottom of being convenient for is on box 1, has been propped switching support 7 simultaneously, cooperates with mounting groove 72 for switching support 7 bottom has more heat dissipation spaces, restricts rocking of switching support 7 on width direction and length direction, when guaranteeing structural strength, reduces the weight of switching support 7. The installation block 13 and the supporting block 14 are detachably fixed on the box body 1 through bolts, and when other types of battery modules need to be installed, the positions of the installation block 13 and the supporting block 14 on the box body are changed, so that the position of the switching support 7 on the box body 1 can be adjusted, and the switching support can be adapted to installation and use of more different types of battery boxes. When installing a type of battery module 4, only need to switching support 7 from box 1 pull down can, installation piece 13 and supporting shoe 14 also can pull down in the lump for space utilization in the battery box obtains improving, and the radiating effect of battery module is better, also makes the battery box when guaranteeing that it bears and guard action, reduces the weight of battery box simultaneously, and is light more. The switching support 7 of different battery boxes can be used interchangeably or used for standby, the edges of the mounting block 13 and the supporting block 14 are subjected to rounding treatment, excessive abrasion generated when the switching support 7 is detached or mounted is reduced, the switching support 7 is more convenient to use, and the interchangeability and the service life of the switching support 7 are also improved.

As shown in fig. 7, 8 and 9, the box cover 2 covers the box body 1 from above, the box body 1 and the box cover 2 are fixedly connected through a closed fastening bolt 21, a Battery Management Unit bracket 8 is arranged in the Battery box, and two Battery Management units 9 (BMU) are mounted on the Battery Management Unit bracket 8. The battery management unit support 8 includes a support body 81, a placement groove 812 is provided on the support body 81, a heat dissipation through groove 811 is provided at the center of the placement groove 812 for the support body 81, one battery management unit 9 is provided on each of both sides of the heat dissipation through groove 811, and the battery management unit 9 is provided with an extension plate 91. One battery management unit 9 is mounted in the placement groove 812, and the extension plate 91 is fixedly connected to the bracket body 81 by the first mounting bolt. Another battery management unit 9 is arranged on the other side of the bracket body 81, a connecting plate 82 is arranged on the bracket body 81, the cross section of the connecting plate 82 is in an L shape, the connecting plate 82 is fixedly connected with the bracket body 81, another battery management unit 9 is fixedly connected with the extending plate 91 and the connecting plate 82 through a second mounting bolt 821, the another battery management unit 9 is supported by the L-shaped connecting plate 82, and the connecting plate 82 is matched with the heat dissipation through groove 811, so that the adjacent outer walls of the two battery management units 9 cannot be in direct contact but have a gap, and the heat dissipation effect is facilitated.

The bracket body 81 is detachably connected to the case cover 2. Specifically, the bracket body 81 is fixedly connected with two first detaching plates 813, the inner wall of the box cover 2 is provided with a second detaching plate 22 for installing the battery management unit bracket 8, detaching bolts 221 are arranged between the first detaching plates 813 and the second detaching plate 22, and the battery management unit bracket 8 is fixed on the box cover 2 through the detaching bolts 221. The battery management unit support 8 can adapt to the models of various battery management units 9, and when the types of the modules are different, the corresponding battery management units 9 can be flexibly installed according to specific use requirements.

The placement groove 812 and the second detaching plate 22 leave a gap between the holder body 81 and the inner wall of the case lid 2 where the battery management unit 9 is placed. The box cover 2 is provided with a maintenance window 16 and a maintenance switch 17, the maintenance window 16 is opposite to the position of the battery management unit support 8, the maintenance switch 17 is electrically connected with the battery management unit 9 in the battery box, when the battery box needs to be replaced or maintained, relevant equipment is closed through the maintenance switch 17, the mode that the box cover 2 is detached from the box body 1 through the maintenance window 16 can be selected, the operation is carried out on the inner part of the battery box, and the operation is convenient.

In the embodiment, the box body 1 is used as a main component for installing the battery module, the box body 1 is a casting part, the casting process is to cast liquid metal into a casting cavity matched with the shape of a part, and after the liquid metal is cooled and solidified, a part or a blank is obtained, so that the box body is suitable for producing parts with complex shapes, the cutting processing amount is less, the structural strength of the box body 1 is stable, and the processing cost of the box body 1 can be reduced; case lid 2 has the effect of sealing 1 and protecting 1 interior equipment of box, case lid 2 is the sheet metal component, the sheet metal component forms through panel beating technology processing for sheet metal, light in weight, intensity is high and with low costs, when the module in a type 4 or two types of battery module 6 highly differs not greatly, can be without the height dimension of change case lid 2, certain space has between case lid 2 and the module, itself just can compatible not co-altitude module, when the module of installation highly differs greatly, can cooperate 1 use of box through the case lid 2 of installation co-altitude, make the structural design of this battery case nimble, the function is reliable, more can be compatible the installation of the battery module of more models.

The following describes the implementation principle of the multifunctional battery box in this embodiment: when installing a type of battery module 4, as long as through a type of fixed punch combination 3 with a type of battery module 4 install on box 1 can, when needs install two type of battery module 6, with the switching support 7 installation, then through two type of switching punch combination 5 with two type of battery module 6 install on box 1 can, a type of battery module 4 has included the different battery module of multiple size in the first direction, two type of battery module 6 has included the different battery module of multiple size in the first direction, and a type of battery module 4 and two type of battery module 6 size in the second direction are also different. Through the reasonable distribution of screw hole position, realize the reliable installation of not unidimensional module. Not only can adapt to the different electric quantity demands of battery box in a flexible way, can also share the mould expense, reduce 1 manufacturing cost of box. The multifunctional battery box is compatible with the installation of various battery modules, and the production and manufacturing cost of the battery box is reduced.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a multifunctional battery box, includes box (1) and case lid (2), its characterized in that still includes:

the fixing hole groups (3) are arranged on the box body (1), the fixing hole groups (3) comprise a first fixing hole group (31) and a second fixing hole group (32) which are respectively arranged on two opposite sides of the box body (1), the first fixing hole group (31) and the second fixing hole group (32) both comprise a plurality of fixing holes, and the fixing hole groups (3) are used for installing battery modules (4);

the battery box comprises a box body (1), a first switching hole group (51) and a second switching hole group (52), wherein the first switching hole group (51) and the second switching hole group (52) are respectively arranged on two opposite sides of the box body (1), the first switching hole group (51) and the second switching hole group (52) both comprise a plurality of switching holes, and the second switching hole group (5) is used for installing a second battery module (6);

the switching support (7), switching support (7) with box (1) detachable connection, second switching punch combination (52) set up on switching support (7).

2. The multifunctional battery box according to claim 1, wherein the box body (1) is provided with a first hole site setting plate group (11) and a second hole site setting plate group (12), the first fixing hole group (31) is provided on the first hole site setting plate group (11), and the second fixing hole group (32) is provided on the second hole site setting plate group (12).

3. The multi-functional battery box according to claim 2, characterized in that the first porthole group (51) is provided on the first porthole-providing plate group (11).

4. The multifunctional battery box according to claim 2, characterized in that a reinforcing rib (15) is connected between each of the first hole site setting plate group (11) and the second hole site setting plate group (12) and the box body (1).

5. The multifunctional battery box according to claim 1, characterized in that the box body (1) is provided with a mounting block (13), and a switching fixing bolt (71) is connected between the mounting block (13) and the switching bracket (7).

6. The multifunctional battery box according to claim 5, characterized in that the bottom of the adapting bracket (7) is provided with a mounting groove (72), and the mounting groove (72) is used for the mounting block (13) to extend into.

7. The multifunctional battery box according to claim 6, characterized in that the box body (1) is provided with a plurality of supporting blocks (14), and the supporting blocks (14) extend into the mounting grooves (72) and are abutted against the adapting bracket (7).

8. The multifunctional battery box according to claim 1, characterized in that the multifunctional battery box further comprises a battery management unit bracket (8), and two battery management units (9) are mounted on the battery management unit bracket (8).

9. Multifunctional battery box according to claim 8, characterized in that the battery management unit support (8) comprises:

the bracket body (81) is used for installing one battery management unit (9), and the bracket body (81) is detachably connected with the box cover (2);

and the connecting plate (82) is used for installing the other battery management unit (9), and the connecting plate (82) is fixedly connected with the bracket body (81).

10. The multifunctional battery box according to claim 9, wherein the bracket body (81) is provided with a heat dissipation through groove (811), and the two battery management units (9) are respectively disposed on two sides of the heat dissipation through groove (811).