CN220672759U

CN220672759U - Energy storage device

Info

Publication number: CN220672759U
Application number: CN202322325692.4U
Authority: CN
Inventors: 李波; 阎杰; 蔡莹蓉; 崔雷
Original assignee: Guangdong Meikong Intelligent Building Co ltd; Shanghai Meikong Smartt Building Co Ltd
Current assignee: Guangdong Meikong Intelligent Building Co ltd; Shanghai Meikong Smartt Building Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-26
Anticipated expiration: 2033-08-28

Abstract

The application discloses an energy storage device belongs to energy storage equipment technical field. The energy storage device comprises an energy storage cabinet and a mounting bracket, wherein the mounting bracket comprises a first connecting part and a second connecting part, the first connecting part is connected with the energy storage cabinet, the second connecting part is provided with a connecting structure which is used for being connected with a wall body, the distance between the connecting structure and the back surface of the energy storage cabinet along the front-back direction is greater than L1, and the requirements are met: l1 is greater than or equal to 10mm, so for have reasonable clearance between energy storage cabinet and the wall body, the setting of clearance is convenient for the back of energy storage cabinet dispels the heat, and the arrangement of circuit of being convenient for simultaneously. And the energy storage device can be prevented from toppling over, so that the safety is improved.

Description

Energy storage device

Technical Field

The application belongs to energy storage equipment technical field, especially relates to an energy storage device.

Background

The dependence of people on power generation is higher and higher, energy storage equipment such as household energy storage power supply is more and more abundant, and when the condition of power failure happens, household energy storage equipment can be used as emergency power supply to supply power for household electric equipment. In the prior art, an energy storage power supply is attached to a wall body, so that heat dissipation of energy storage equipment and wiring harness layout are not facilitated. In addition, the energy storage equipment has certain height and weight, and if the energy storage equipment is toppled over, potential safety hazards are brought to users.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides an energy storage device, solves among the prior art and normally places energy storage power and wall body laminating, so is unfavorable for energy storage equipment heat dissipation and pencil to lay. In addition, the energy storage equipment has certain height and weight, and if the energy storage equipment is toppled over, the potential safety hazard problem is brought to the user.

In a first aspect, the present application provides a connection structure comprising:

an energy storage cabinet; the method comprises the steps of,

the installing support, the installing support includes first connecting portion and second connecting portion, first connecting portion with the energy storage cabinet links to each other, the second connecting portion have be used for with the continuous connection structure of wall body, connection structure with the back of energy storage cabinet is greater than L1 along the distance of fore-and-aft direction, satisfies: l1 is more than or equal to 10mm.

According to the energy storage device provided by the embodiment of the application, as the distance between the connecting structure and the back surface of the energy storage cabinet along the front-back direction is greater than L1, the following conditions are satisfied: l1 is greater than or equal to 10mm, makes as the energy storage cabinet passes through the installing support installs in the wall body, have the clearance between energy storage cabinet and the wall body, the setting of clearance is convenient for the back of energy storage cabinet dispels the heat, and the arrangement of circuit of being convenient for simultaneously, and can also avoid energy storage device to take place to empty, improved the security.

According to an embodiment of the application, the energy storage cabinet includes along a plurality of modules that up-and-down stack gradually and set up, first module in a plurality of modules is equipped with on the wall just opposite with adjacent second module and dodges the groove, dodges the groove and be in the back of first module is opened, first connecting portion is followed dodge the groove stretch into with first module or the second module links to each other.

According to an embodiment of the application, the bottom surface of the first module is provided with the avoidance groove, the second module is located below the first module, and the first connecting portion is connected with the upper surface of the second module.

According to one embodiment of the present application, the first module is a control box, and the second module is a battery module.

According to one embodiment of the present application, the second connection part includes:

the connecting structure is arranged on the first connecting plate;

the second connecting plate is opposite to the first connecting plate and is arranged at intervals, and the first connecting part is connected with the second connecting plate;

the baffle is clamped between the first connecting plate and the second connecting plate, and two ends of the baffle are respectively connected with the first connecting plate and the second connecting plate.

According to an embodiment of the present application, the second connecting portion further includes two first reinforcing plates that are disposed between the first connecting plate and the second connecting plate in a clamping manner, the two first reinforcing plates are disposed opposite and spaced apart along a left-right direction, and two ends of each first reinforcing plate are respectively connected with the first connecting plate and the second connecting plate.

According to one embodiment of the application, the mounting bracket comprises a box body with an open upper end, a part of a front plate of the box body is bent forward to form the first connecting part, and a back plate of the box body forms the second connecting part.

According to one embodiment of the application, the second connecting portion includes a third connecting plate, and the connecting structure is disposed on the third connecting plate;

the first connecting portion comprises a fourth connecting plate, the fourth connecting plate and the third connecting plate are arranged at an included angle, one end of the fourth connecting plate is connected with the third connecting plate, and the other end of the fourth connecting plate is connected with the energy storage cabinet.

According to one embodiment of the application, a portion of the fourth connecting plate is bent towards a direction away from the third connecting plate to form a bent abutting plate, and the bent abutting plate is used for abutting against a side face of the energy storage cabinet.

According to one embodiment of the present application, two second reinforcing plates are convexly arranged on the surface of the third connecting plate, which faces the fourth connecting plate, and the two second reinforcing plates are arranged at intervals in the left-right direction and extend up and down;

the fourth connecting plate is towards the protruding two third reinforcing plates that are equipped with in surface of third connecting plate, two third reinforcing plates set up along controlling to the interval and along last fore-and-aft extension setting, two third reinforcing plates respectively with two second reinforcing plates link to each other.

According to one embodiment of the present application, the mounting bracket includes:

the two ends of the horizontal plate are bent upwards to form a first flanging, and the part, clamped between the two flanging, of the horizontal plate forms the first connecting part;

the lower extreme of vertical board with the rear end of first connecting portion is perpendicular crossing, the both ends of vertical board are buckled forward in order to form two second turn-ups, the rear end of second turn-ups with the lower extreme of first turn-ups links to each other, vertical board presss from both sides locates two the part of second turn-ups forms second connecting portion.

According to an embodiment of the application, the first connecting portion is along upwards and downwards to having two at least bar holes, two at least bar holes are along controlling to the interval setting, each bar hole is all along the fore-and-aft extension setting, each bar hole is used for supplying first connecting piece cartridge, in order to pass through first connecting piece will first connecting portion with energy storage cabinet fixed connection.

According to an embodiment of the application, the connecting structure comprises a plurality of connecting holes, a plurality of connecting holes are arranged at intervals along the left-right direction, and each connecting hole is used for being inserted by a second connecting piece so as to fixedly connect the second connecting part with the wall body through the second connecting piece.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

fig. 1 is a schematic structural diagram of an energy storage device according to an embodiment of the present disclosure;

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

FIG. 3 is a schematic diagram of the first module shown in FIG. 1;

FIG. 4 is a schematic view of the second module and mounting bracket of FIG. 1;

FIG. 5 is a schematic view of a first embodiment of a mounting bracket provided in an embodiment of the present application;

FIG. 6 is a schematic structural view of a second embodiment of a mounting bracket provided in an embodiment of the present application;

FIG. 7 is a schematic view of a third embodiment of a mounting bracket provided in an embodiment of the present application;

FIG. 8 is a schematic structural view of a fourth embodiment of a mounting bracket provided in an embodiment of the present application;

fig. 9 is a schematic structural view of a fifth embodiment of a mounting bracket provided in an embodiment of the present application.

Reference numerals:

an energy storage device 100;

the energy storage cabinet 110, the module 111, the first module 111a, the second module 111b, the control box 112 and the battery module 113;

the mounting bracket 120, the first connecting portion 121, the fourth connecting plate 1211, the bending abutment plate 1212, the second connecting portion 122, the first connecting plate 1221, the second connecting plate 1222, the partition 1223, the first reinforcing plate 1224, the third connecting plate 1225, the second reinforcing plate 1226, the third reinforcing plate 1227, the case 123, the horizontal plate 124, the first flange 1241, the vertical plate 125, the second flange 1251;

a connection structure 130 and a connection hole 131;

the avoidance groove 140;

a bar-shaped hole 150;

a base 160.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The application discloses a connection structure.

A connection structure according to an embodiment of the present application is described below with reference to fig. 1 to 9.

As shown in fig. 1-3, the energy storage device 100 includes an energy storage cabinet 110 and a mounting bracket 120.

The energy storage cabinet 110 is used for storing electricity for users, such as a large-sized charger. In addition, the shape of the energy storage cabinet 110 may be various, for example, the energy storage cabinet 110 may be a cuboid, a cube, a cylinder, or the like, which is not limited in this application.

The installing support 120 includes first connecting portion 121 and second connecting portion 122, and first connecting portion 121 can link to each other with energy storage cabinet 110, and second connecting portion 122 have the connection structure 130 that can link to each other with the wall body, so, can link to each other energy storage equipment 100 with the wall body through connection structure 130, avoid energy storage device 100 to take place to empty, improved the security. The distance between the connection structure 130 and the back surface of the energy storage cabinet 110 along the front-back direction is greater than L1, which satisfies the following conditions: l1 is more than or equal to 10mm.

The first connection portion 121 may be connected to the energy storage cabinet 110 in various manners, for example, in an embodiment, the first connection portion 121 may be screwed to the energy storage cabinet 110 by a threaded connection, and in another embodiment, the first connection portion 121 may also be welded to the energy storage cabinet 110.

The connection structure 130 may be a through hole, and specifically, the through hole may be a circular hole, a rectangular hole, or the like. Of course, in other embodiments, the specific arrangement of the connection structure 130 may be selected according to need, which is not limited in this application.

According to the energy storage device 100 provided in the embodiment of the present application, since the distance between the connection structure 130 and the back surface of the energy storage cabinet 110 along the front-back direction is greater than L1, the following conditions are satisfied: l1 is greater than or equal to 10mm for when energy storage cabinet 110 passes through installing support 120 and installs in the wall body, have reasonable clearance between energy storage cabinet 110 and the wall body, reasonable clearance's setting can be convenient for the back of energy storage cabinet 110 dispel the heat, can be convenient for the arrangement of circuit simultaneously, has improved user's use experience. In addition, the energy storage device can be prevented from toppling over, and the safety is improved.

In an embodiment, the energy storage cabinet 110 may include a plurality of modules 111 stacked in an up-down direction, where a first module 111a of the plurality of modules 111 may be provided with an avoidance groove 140 on a wall surface opposite to an adjacent second module 111b, the avoidance groove 140 may be open at a back surface of the first module 111a, and the first connection portion 121 may extend into the avoidance groove 140 to be connected with the first module 111a or the second module 111b, specifically, for example, the first connection portion 121 may extend into the avoidance groove 140 to be connected with only the first module 111a, or the first connection portion 121 may extend into the avoidance groove 140 to be connected with only the second module 111 b. So set up, can make between first module 111a and the second module 111b zonulae occludens for energy storage cabinet 110 overall structure is firm, can closely laminate between a plurality of modules 111, does not produce the gap, and can avoid energy storage cabinet 110 to install after in place, installing support 120 leaks outward, can improve the installation pleasing to the eye degree.

In the above embodiment, the two adjacent modules 111 may be connected and fixed by a screw, may be fixed by a fastening structure, may be welded and fixed, and the application is not limited thereto.

In addition, the size of depth direction has been reduced through the mode of arranging that a plurality of modules stack, occupation space is littleer, is connected energy storage device and wall body through the installing support that sets up at the energy storage cabinet back, and the heat dissipation of energy storage cabinet and the arrangement of pencil of being convenient for avoid the installing support to leak outward, pleasing to the eye safety again.

Referring to fig. 3, in an embodiment, the bottom surface of the first module 111a may be provided with a avoidance groove 140, and the second module 111b may be located below the first module 111a, so that an installer may simply operate when connecting the first connection portion 121 with the upper surface of the second module 111b, and installation efficiency is improved.

Referring to fig. 1, in an embodiment, the first module 111a may be a control box 111b, and the second module may be a battery module 113, so that the mounting bracket 120 is prevented from leaking, and a high power storage capability of the battery module 113 is ensured.

It should be noted that, in an embodiment, the control box 111b may further be provided with an inverter (box) and a terminal, and in another embodiment, the control box 111b may further be provided at a top end of the energy storage device 100, which is not limited in this application.

Of course, in other embodiments, the first module 111a may be one of the two adjacent battery modules 113 located above, and the second module 111b may be one of the two adjacent battery modules 113 located below, so that the mounting bracket 120 is prevented from leaking out, and the aesthetic appearance is improved.

Referring to fig. 1, the energy storage device 100 may further include a base 160, and the base 160 may be connected to the lowermost module 111, so that the lowermost module 111 is prevented from being damaged during stacking, and the service life of the module 111 is improved.

In addition, in the embodiment of the present application, the control box 112 may be located at the uppermost side, however, in other embodiments, the lowermost battery module 113 among the plurality of battery modules 113 may be connected to the control box 112, and the control box 112 may be connected to the base 160. Specifically, the present application is not limited thereto.

Referring to fig. 2 to 5, in an embodiment, the second connection part 122 may include a first connection plate 1221, a second connection plate 1222, and a partition 1223.

The first connection plate 1221, the connection structure 130 may be disposed on the first connection plate 1221.

It should be noted that, the connection structure 130 may be disposed adjacent to an upper end of the first connection plate 1221, may be disposed adjacent to a lower end of the first connection plate 1221, and the connection structure 130 may be disposed in a middle portion of the connection plate. Of course, in order to firmly connect the first connecting plate 1221 with the wall, the connecting structure 130 may be provided in plurality, and the plurality of connecting structures 130 may be respectively adjacent to the upper end of the first connecting plate 1221, adjacent to the lower end of the first connecting plate 1221, and provided in the middle of the connecting plate.

The second connection plate 1222 may be opposite to and spaced apart from the first connection plate 1221, and the first connection part 121 may be mounted to the second connection plate 1222.

Various manners of mounting the first connection portion 121 on the second connection plate 1222 are available, for example, in an embodiment, the first connection portion 121 may be welded on the second connection plate 1222, and in other embodiments, the first connection portion 121 and the second connection plate 1222 may be integrally formed, which is not limited in this application.

The partition 1223 may be sandwiched between the first connection plate 1221 and the second connection plate 1222, and two ends of the partition 1223 may be connected to the first connection plate 1221 and the second connection plate 1222, respectively, by providing the partition 1223, a space may be formed between the first connection plate 1221 and the second connection plate 1222, so that a distance between the connection structure 130 and the back surface of the energy storage cabinet 110 along the front-back direction is ensured to be greater than L1, which is convenient for heat dissipation and arrangement of circuits.

It should be noted that, there are various ways in which the two ends of the partition 1223 may be connected to the first connection plate 1221 and the second connection plate 1222, for example, in an embodiment, the two ends of the partition 1223 may be welded and fixed to the first connection plate 1221 and the second connection plate 1222, and in other embodiments, the two ends of the partition 1223 may be integrally formed with the first connection plate 1221 and the second connection plate 1222, which is not limited in this application.

Referring to fig. 5, in an embodiment, the second connection portion 122 may further include two first reinforcing plates 1224 sandwiched between the first connection plate 1221 and the second connection plate 1222, the two first reinforcing plates 1224 may be disposed opposite and spaced apart from each other in a left-right direction, and two ends of each first reinforcing plate 1224 may be connected to the first connection plate 1221 and the second connection plate 1222 respectively, so that the stability of connection between the first connection plate 1221 and the second connection plate 1222 may be enhanced by disposing the first reinforcing plates 1224, so as to avoid stress deformation of the first connection plate 1221 and the second connection plate 1222, so that the overall rigidity and strength of the mounting bracket 120 are greatly improved.

Referring to fig. 6, in the embodiment of the present application, the mounting bracket 120 may include a box body 123 with an open upper end, a portion of a front plate of the box body 123 may be bent forward to form a first connection part 121, and a back plate of the box body 123 may form a second connection part 122, so that the mounting bracket 120 is provided, so that a reasonable gap is provided between the energy storage cabinet 110 and the wall, and meanwhile, the cost is saved, the structure is simple, and the strength and hardness of the mounting bracket 120 are relatively high, so that the overall structure of the mounting bracket 120 is stable.

Referring to fig. 7 to 9, in an embodiment, the second connection part 122 may include a third connection plate 1225, the connection structure 130 may be disposed on the third connection plate 1225, the first connection part 121 may include a fourth connection plate 1211, the fourth connection plate 1211 may be disposed at an included angle with the third connection plate 1225, and one end of the fourth connection plate 1211 may be connected to the third connection plate 1225, and the other end of the fourth connection plate 1211 may be connected to the energy storage cabinet 110, so that the structure is simple, and a reasonable gap may be provided between the energy storage cabinet 110 and the wall body to facilitate heat dissipation and arrangement of the wire harness.

Referring to fig. 9, in an embodiment, a portion of the fourth connecting plate 1211 is bent towards a direction away from the third connecting plate 1225 to form a bent abutting plate 1212, and the bent abutting plate 1212 is used to abut against a side surface of the energy storage cabinet 110, so that a gap is formed between the energy storage cabinet 110 and a wall body, so that heat dissipation and harness arrangement of the energy storage cabinet 110 are facilitated, and the structure is simple.

It should be noted that, in an embodiment, the fourth connecting plate 1211 may be a portion on the left and/or right side that is bent toward a direction away from the third connecting plate 1225 to form the bent abutment plate 1212. In yet another embodiment, the middle portion of the fourth connecting plate 1211 may be bent in a left-right upward direction toward a direction away from the third connecting plate 1225 to form a bent abutment plate 1212, which is not limited in this application. As shown in fig. 9, the bending contact plate 1212 and the third connecting plate 1225 are provided at intervals in the front-rear direction, and the interval is set to L2, wherein L2 is equal to or greater than 10mm.

Referring to fig. 7, in an embodiment, the third connecting plate 1225 may be convexly provided with two second reinforcing plates 1226 toward the surface of the fourth connecting plate 1211, the two second reinforcing plates 1226 may be disposed at intervals in the left-right direction and extend in the up-down direction, the fourth connecting plate 1211 may be convexly provided with two third reinforcing plates 1227 toward the surface of the third connecting plate 1225, the two third reinforcing plates 1227 may be disposed at intervals in the left-right direction and extend in the up-front-rear direction, and by making the two third reinforcing plates 1227 respectively connected with the two second reinforcing plates 1226, the third connecting plate 1225 and the fourth connecting plate 1211 are firmly connected, and stress deformation of the third connecting plate 1225 and the fourth connecting plate 1211 is avoided, so that the rigidity and strength of the whole mounting bracket 120 are greatly improved.

Referring to fig. 8, in still another embodiment, the mounting bracket 120 may include a horizontal plate 124 and a vertical plate 125, two ends of the horizontal plate 124 may be bent upward to form a first flange 1241, a portion of the horizontal plate 124 sandwiched between the two first flanges 1241 may form a first connection portion 121, a lower end of the vertical plate 125 may perpendicularly intersect with a rear end of the first connection portion 121, two ends of the vertical plate 125 may be bent forward to form two second flanges 1251, a rear end of the second flange 1251 may be connected with a lower end of the first flange 1241, and a portion of the vertical plate 125 sandwiched between the two second flanges 1251 may form a second connection portion 122.

Referring to fig. 5 to 9, in an embodiment, the first connection portion 121 may be penetrated with at least two strip holes 150 along the up-down direction, at least two strip holes 150 may be arranged along the left-right direction at intervals, each strip hole 150 may be arranged along the front-rear direction in an extending manner, each strip hole 150 may be inserted with a first connector, so that the first connection portion 121 and the energy storage cabinet 110 are fixedly connected through the first connector, and by setting the strip holes 150, the gap between the energy storage cabinet 110 and the wall body can be adjusted as required, so that heat dissipation and arrangement and installation of the wire harness are facilitated.

It should be noted that in the embodiment of the present application, the first connection piece may be a screw, and the corresponding energy storage cabinet 110 is provided with a threaded hole adapted to the screw, so that a threaded section of the screw inserted into the strip-shaped hole 150 may be screwed with the threaded hole of the energy storage cabinet 110, thereby realizing the fixed connection between the first connection portion 121 and the energy storage cabinet 110. When the position of the energy storage cabinet 110 needs to be adjusted, the screw is unscrewed, the position of the screw is slid, the gap between the energy storage cabinet 110 and the wall meets the requirement, and then the screw is screwed, so that the position between the energy storage cabinet 110 and the first connecting portion 121 is fixed, and the operation is simple.

In an embodiment, the connection structure 130 may include a plurality of connection holes 131, where the plurality of connection holes 131 are disposed at intervals along a left-right direction, each connection hole 131 is used for inserting a second connector, and the second connection portion 122 is fixedly connected with the wall body through a plurality of second connectors, so that the connection between the second connector and the wall body is firm.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the present application.

In the description of the present application, "a first feature", "a second feature" may include one or more of the features.

In the description of the present application, the meaning of "plurality" is two or more.

In the description of this application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact by another feature therebetween.

In the description of this application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy storage device, comprising:

an energy storage cabinet; the method comprises the steps of,

2. The energy storage device according to claim 1, wherein the energy storage cabinet comprises a plurality of modules stacked up and down in sequence, a first module of the plurality of modules is provided with an avoidance groove on a wall surface opposite to an adjacent second module, the avoidance groove is opened at the back surface of the first module, and the first connection portion extends into the avoidance groove to be connected with the first module or the second module.

3. The energy storage device of claim 2, wherein the bottom surface of the first module is provided with the avoidance groove, the second module is located below the first module, and the first connection portion is connected to the upper surface of the second module.

4. The energy storage device of claim 3, wherein the first module is a control box and the second module is a battery module.

5. The energy storage device of any of claims 1-4, wherein the second connection portion comprises:

the connecting structure is arranged on the first connecting plate;

6. The energy storage device of claim 5, wherein the second connection portion further comprises two first reinforcing plates sandwiched between the first connection plate and the second connection plate, the two first reinforcing plates are opposite and spaced apart in a left-right direction, and two ends of each first reinforcing plate are respectively connected to the first connection plate and the second connection plate.

7. The energy storage device of any of claims 1-4, wherein the mounting bracket comprises a box open at an upper end, a portion of a front panel of the box being folded forward to form the first connection, and a back panel of the box forming the second connection.

8. The energy storage device of any of claims 1-4, wherein the second connection portion comprises a third connection plate, the connection structure being provided to the third connection plate;

9. The energy storage device of claim 8, wherein a portion of the fourth connection plate is bent toward a direction away from the third connection plate to form a bent abutment plate for abutment with a side of the energy storage cabinet.

10. The energy storage device of claim 8, wherein two second reinforcing plates are convexly arranged on the surface of the third connecting plate, which faces the fourth connecting plate, and the two second reinforcing plates are arranged at intervals along the left-right direction and extend along the upper-lower direction;

11. The energy storage device of any of claims 1-4, wherein the mounting bracket comprises:

12. The energy storage device of any one of claims 1 to 4, wherein the first connecting portion is provided with at least two strip-shaped holes extending in a vertical direction, the at least two strip-shaped holes are arranged at intervals in a horizontal direction, each strip-shaped hole extends in a front-rear direction, and each strip-shaped hole is used for a first connecting piece to be inserted, so that the first connecting portion is fixedly connected with the energy storage cabinet through the first connecting piece.