Energy storage device

Abstract

The invention discloses an energy storage device, and belongs to the technical field of energy storage equipment. The energy storage device comprises an energy storage cabinet and a mounting support, the mounting support 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 used for being connected with a wall, the distance between the connecting structure and the back face of the energy storage cabinet in the front-back direction is larger than L1, and L1 is larger than or equal to 10 mm. A reasonable gap is formed between the energy storage cabinet and the wall body, heat dissipation of the back face of the energy storage cabinet is facilitated due to the arrangement of the gap, and meanwhile line arrangement is facilitated. And the energy storage device can be prevented from toppling over, so that the safety is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of energy storage equipment, and in particular, relates to an energy storage device. Background Art

[0002] People are becoming more and more dependent on electricity, and energy storage devices such as home energy storage power supplies are becoming more and more abundant. When a power outage occurs, home energy storage devices can be used as emergency power supplies to power home electrical devices. In the prior art, energy storage power supplies are usually placed close to the wall, which is not conducive to the heat dissipation of energy storage devices and the wiring harness layout. In addition, energy storage devices have a certain height and weight. If they fall over, it will bring safety hazards to users. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an energy storage device to solve the problem that the energy storage power supply is usually placed close to the wall in the prior art, which is not conducive to the heat dissipation of the energy storage device and the wiring harness layout. In addition, the energy storage device has a certain height and weight, and if it falls over, it will bring safety hazards to users.

[0004] In a first aspect, the present application provides a connection structure, including:

[0005] Energy storage cabinets; and,

[0006] The mounting bracket includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the energy storage cabinet, the second connecting portion has a connecting structure for connecting to a wall, and the distance between the connecting structure and the back side of the energy storage cabinet in the front-to-back direction is greater than L1, satisfying: L1≥10mm.

[0007] According to the energy storage device provided in the embodiment of the present application, since the distance between the connection structure and the back side of the energy storage cabinet in the front-to-back direction is greater than L1, and satisfies: L1 ≥ 10 mm, when the energy storage cabinet is installed on the wall through the mounting bracket, there is a gap between the energy storage cabinet and the wall. The setting of the gap facilitates heat dissipation from the back side of the energy storage cabinet and the layout of the lines, and can also prevent the energy storage device from tipping over, thereby improving safety.

[0008] According to one embodiment of the present application, the energy storage cabinet includes a plurality of modules stacked in sequence in an up-down direction, a first module among the plurality of modules is provided with an avoidance groove on a wall surface opposite to an adjacent second module, the avoidance groove is open on the back side of the first module, and the first connecting portion extends from the avoidance groove to be connected to the first module or the second module.

[0009] According to an embodiment of the present application, the avoidance groove is provided on the bottom surface of the first module, the second module is located below the first module, and the first connecting portion is connected to the upper surface of the second module.

[0010] According to one embodiment of the present application, the first module is a control box, and the second module is a battery module.

[0011] According to one embodiment of the present application, the second connecting portion includes:

[0012] A first connecting plate, wherein the connecting structure is provided on the first connecting plate;

[0013] a second connecting plate, opposite to and spaced from the first connecting plate, wherein the first connecting portion is connected to the second connecting plate;

[0014] The partition is sandwiched between the first connecting plate and the second connecting plate, and two ends of the partition are respectively connected to the first connecting plate and the second connecting plate.

[0015] According to one embodiment of the present application, the second connecting portion also includes two first reinforcing plates clamped between the first connecting plate and the second connecting plate, the two first reinforcing plates are opposite to each other and spaced apart in the left-right direction, and the two ends of each of the first reinforcing plates are respectively connected to the first connecting plate and the second connecting plate.

[0016] According to an embodiment of the present application, the mounting bracket includes a box body with an open upper end, a portion of a front plate of the box body is bent forward to form the first connecting portion, and a back plate of the box body forms the second connecting portion.

[0017] According to an embodiment of the present application, the second connection portion includes a third connection plate, and the connection structure is provided on the third connection plate;

[0018] The first connecting portion includes a fourth connecting plate, the fourth connecting plate is arranged at an angle with the third connecting plate, one end of the fourth connecting plate is connected to the third connecting plate, and the other end of the fourth connecting plate is connected to the energy storage cabinet.

[0019] According to an embodiment of the present application, a portion of the fourth connecting plate is bent in a direction away from the third connecting plate to form a bent abutting plate, and the bent abutting plate is used to abut against a side surface of the energy storage cabinet.

[0020] According to an embodiment of the present application, two second reinforcing plates are protruded from the surface of the third connecting plate facing the fourth connecting plate, and the two second reinforcing plates are arranged at intervals in the left-right direction and extend in the up-down direction;

[0021] The surface of the fourth connecting plate facing the third connecting plate is protruded with two third reinforcing plates, the two third reinforcing plates are spaced apart in the left-right direction and extend in the upper front-back direction, and the two third reinforcing plates are respectively connected to the two second reinforcing plates.

[0022] According to one embodiment of the present application, the mounting bracket includes:

[0023] A horizontal plate, both ends of which are bent upward to form a first flange, and a portion of the horizontal plate sandwiched between the two flanges forms the first connecting portion;

[0024] A vertical plate, the lower end of which intersects perpendicularly with the rear end of the first connecting portion, the two ends of the vertical plate are bent forward to form two second flanges, the rear end of the second flange is connected to the lower end of the first flange, and the vertical plate is clamped between the two second flanges to form the second connecting portion.

[0025] According to one embodiment of the present application, the first connecting portion is provided with at least two strip holes along the up-down direction, the at least two strip holes are arranged at intervals along the left-right direction, each of the strip holes is extended along the front-back direction, and each of the strip holes is used for the first connecting member to be inserted, so as to fix the first connecting portion to the energy storage cabinet through the first connecting member.

[0026] According to one embodiment of the present application, the connection structure includes a plurality of connection holes, which are spaced apart in the left-right direction, and each of the connection holes is used for inserting a second connection member to fix the second connection portion to the wall through the second connection member.

[0027] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of the structure of the energy storage device provided in an embodiment of the present application;

[0030] Figure 2 yes Figure 1 A partial enlarged schematic diagram in the middle;

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure of the first module;

[0032] Figure 4 yes Figure 1A schematic diagram of the structure of the second module and the mounting bracket;

[0033] Figure 5 is a structural schematic diagram of a first embodiment of a mounting bracket provided in an embodiment of the present application;

[0034] Figure 6 is a structural schematic diagram of a second embodiment of the mounting bracket provided in an embodiment of the present application;

[0035] Figure 7 is a structural schematic diagram of a third embodiment of a mounting bracket provided in an embodiment of the present application;

[0036] Figure 8 is a schematic structural diagram of a fourth embodiment of a mounting bracket provided in an embodiment of the present application;

[0037] Fig. 9 It is a structural schematic diagram of the fifth embodiment of the mounting bracket provided in the embodiment of the present application.

[0038] Reference numerals:

[0039] Energy storage device 100;

[0040] Energy storage cabinet 110, module 111, first module 111a, second module 111b, control box 112, battery module 113;

[0041] The mounting bracket 120, the first connecting portion 121, the fourth connecting plate 1211, the bent abutting plate 1212, the second connecting portion 122, the first connecting plate 1221, the second connecting plate 1222, the partition plate 1223, the first reinforcing plate 1224, the third connecting plate 1225, the second reinforcing plate 1226, the third reinforcing plate 1227, the box body 123, the horizontal plate 124, the first flange 1241, the vertical plate 125, and the second flange 1251;

[0042] A connecting structure 130 and a connecting hole 131;

[0043] Avoidance slot 140;

[0044] Strip hole 150;

[0045] Base 160. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0047] The present application discloses a connection structure.

[0048] Reference below Figures 1 to 9 A connection structure according to an embodiment of the present application is described.

[0049] like Figures 1 to 3 As shown, the energy storage device 100 includes an energy storage cabinet 110 and a mounting bracket 120 .

[0050] The energy storage cabinet 110 is used to store electricity for use by the user, like a large power bank. In addition, the energy storage cabinet 110 has a variety of shapes, for example, the energy storage cabinet 110 can be a cuboid, a cube or a cylinder, etc., and this application does not limit this.

[0051] The mounting bracket 120 includes a first connection portion 121 and a second connection portion 122. The first connection portion 121 can be connected to the energy storage cabinet 110, and the second connection portion 122 has a connection structure 130 that can be connected to a wall. In this way, the energy storage device 100 can be connected to the wall through the connection structure 130 to prevent the energy storage device 100 from tipping over, thereby improving safety. The distance between the connection structure 130 and the back of the energy storage cabinet 110 along the front-to-back direction is greater than L1, satisfying: L1 ≥ 10 mm.

[0052] There are many ways to connect the first connection portion 121 to the energy storage cabinet 110. For example, in one embodiment, the first connection portion 121 and the energy storage cabinet 110 can be threadedly fixed by a screw connection. In another embodiment, the first connection portion 121 can also be fixed to the energy storage cabinet 110 by welding. Specifically, this application does not limit this.

[0053] In addition, the connection structure 130 may be a through hole, and specifically, the shape of the through hole may be a circular hole, or a long hole, etc. Of course, in other embodiments, the specific configuration of the connection structure 130 may be selected as required, and the present application does not limit this.

[0054] 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 of the energy storage cabinet 110 along the front-to-back direction is greater than L1, and satisfies: L1 ≥ 10 mm, when the energy storage cabinet 110 is installed on the wall through the mounting bracket 120, there is a reasonable gap between the energy storage cabinet 110 and the wall. The setting of a reasonable gap can facilitate heat dissipation on the back of the energy storage cabinet 110, and at the same time, it can facilitate the layout of the lines, thereby improving the user experience. In addition, it can also prevent the energy storage device from tipping over, thereby improving safety.

[0055] In one embodiment, the energy storage cabinet 110 may include a plurality of modules 111 stacked in sequence in an up-down direction, and a first module 111a among the plurality of modules 111 may be provided with an avoidance groove 140 on a wall surface directly opposite to an adjacent second module 111b, and the avoidance groove 140 may be open on the back of the first module 111a, and the first connection portion 121 may extend from the avoidance groove 140 to be connected to the first module 111a or the second module 111b. Specifically, for example, the first connection portion 121 may extend from the avoidance groove 140 to be connected only to the first module 111a, or the first connection portion 121 may extend from the avoidance groove 140 to be connected only to the second module 111b. Such an arrangement can ensure that the first module 111a and the second module 111b are tightly connected, so that the overall structure of the energy storage cabinet 110 is stable, and the multiple modules 111 can fit tightly without any gaps. It can also prevent the mounting bracket 120 from leaking out after the energy storage cabinet 110 is installed in place, thereby improving the aesthetics of the installation.

[0056] It should be noted that, in the above embodiment, two adjacent modules 111 may be connected and fixed by means of screw connections, or by means of a snap-fit ​​structure, or by means of welding, etc., and this application does not impose any limitation on this.

[0057] In addition, the stacking of multiple modules reduces the depth dimension and occupies less space. The energy storage device is connected to the wall through the mounting bracket set on the back of the energy storage cabinet, which facilitates the heat dissipation of the energy storage cabinet and the layout of the wiring harness, avoids the leakage of the mounting bracket, and is beautiful and safe.

[0058] Reference Figure 3 In one embodiment, the bottom surface of the first module 111a may be provided with an avoidance groove 140, and the second module 111b may be located below the first module 111a, so that the installer can easily operate when connecting the first connecting portion 121 to the upper surface of the second module 111b, thereby improving the installation efficiency.

[0059] Reference Figure 1 In one embodiment, the first module 111a may be a control box 111b, and the second module may be a battery module 113. This arrangement can avoid leakage of the mounting bracket 120 and ensure that the battery module 113 has a high power storage capacity.

[0060] It should be noted that, in one embodiment, an inverter (box) and terminals may be provided on the control box 111b. In another embodiment, the control box 111b may be provided at the top of the energy storage device 100. Specifically, this application does not limit this.

[0061] Of course, in other embodiments, the first module 111a may also be the upper one of two adjacent battery modules 113, and the second module 111b may be the lower one of two adjacent battery modules 113. In this way, the mounting bracket 120 can be prevented from leaking out and the aesthetics can be improved.

[0062] Reference Figure 1 The energy storage device 100 may further include a base 160 , and the base 160 may be connected to the bottommost module 111 , so as to avoid damage to the bottommost module 111 during stacking, thereby increasing the service life of the module 111 .

[0063] In addition, in the embodiment of the present application, the control box 112 may be located at the top, and of course, in other embodiments, the battery module 113 at the bottom of 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 does not limit this.

[0064] Reference Figures 2 to 5 In one embodiment, the second connection portion 122 may include a first connection plate 1221 , a second connection plate 1222 and a partition plate 1223 .

[0065] The first connecting plate 1221 , on which the connecting structure 130 may be disposed.

[0066] It should be noted that the connection structure 130 can be arranged adjacent to the upper end of the first connection plate 1221, or adjacent to the lower end of the first connection plate 1221, or in the middle of the connection plate. Of course, in order to firmly connect the first connection plate 1221 to the wall, a plurality of connection structures 130 can be arranged, and the plurality of connection structures 130 can be respectively adjacent to the upper end of the first connection plate 1221, adjacent to the lower end of the first connection plate 1221, and in the middle of the connection plate.

[0067] The second connecting plate 1222 may be opposite to and spaced apart from the first connecting plate 1221 , and the first connecting portion 121 may be mounted on the second connecting plate 1222 .

[0068] There are many ways to install the first connecting portion 121 on the second connecting plate 1222. For example, in one embodiment, the first connecting portion 121 can be welded and installed on the second connecting plate 1222. In other embodiments, the first connecting portion 121 and the second connecting plate 1222 can also be integrally formed, etc. This application does not limit this.

[0069] The partition 1223 can be clamped between the first connecting plate 1221 and the second connecting plate 1222, and the two ends of the partition 1223 can be connected to the first connecting plate 1221 and the second connecting plate 1222 respectively. By setting the partition 1223, a gap can be formed between the first connecting plate 1221 and the second connecting plate 1222, ensuring that the distance between the connecting structure 130 and the back side of the energy storage cabinet 110 along the front-to-back direction is greater than L1, which is convenient for heat dissipation and line layout.

[0070] It should be noted that there are various ways in which the two ends of the partition 1223 can be respectively connected to the first connecting plate 1221 and the second connecting plate 1222. For example, in one embodiment, the two ends of the partition 1223 can be respectively welded and fixed to the first connecting plate 1221 and the second connecting plate 1222. In other embodiments, the two ends of the partition 1223 can also be respectively integrally formed with the first connecting plate 1221 and the second connecting plate 1222. Specifically, the present application does not limit this.

[0071] Reference Figure 5 In one embodiment, the second connecting portion 122 may further include two first reinforcing plates 1224 sandwiched between the first connecting plate 1221 and the second connecting plate 1222. The two first reinforcing plates 1224 may be arranged opposite to each other and spaced apart in the left-right direction. The two ends of each first reinforcing plate 1224 may be respectively connected to the first connecting plate 1221 and the second connecting plate 1222. By setting up the first reinforcing plates 1224, the stability of the connection between the first connecting plate 1221 and the second connecting plate 1222 may be enhanced, and the first connecting plate 1221 and the second connecting plate 1222 may be prevented from being deformed by force, thereby greatly improving the overall hardness and strength of the mounting bracket 120.

[0072] Reference Figure 6 In an 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 portion 121, and a back plate of the box body 123 may form a second connection portion 122. Such an arrangement can save costs while ensuring a reasonable gap between the energy storage cabinet 110 and the wall, and has a simple structure. The strength and hardness of the mounting bracket 120 are relatively large, so that the overall structure of the mounting bracket 120 is stable.

[0073] Reference Figures 7 to 9In one embodiment, the second connection portion 122 may include a third connection plate 1225, the connection structure 130 may be arranged on the third connection plate 1225, the first connection portion 121 may include a fourth connection plate 1211, the fourth connection plate 1211 may be arranged at an 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. With such an arrangement, the structure is simple and a reasonable gap can be provided between the energy storage cabinet 110 and the wall to facilitate heat dissipation and the arrangement of wiring harnesses.

[0074] Reference Fig. 9 In one embodiment, a portion of the fourth connecting plate 1211 is bent in 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 the side of the energy storage cabinet 110. Such an arrangement allows a gap to be provided between the energy storage cabinet 110 and the wall, which is convenient for heat dissipation and wiring harness arrangement of the energy storage cabinet 110, and has a simple structure.

[0075] It should be noted that, in one embodiment, the fourth connecting plate 1211 may be bent at the left and / or right side in a direction away from the third connecting plate 1225 to form the bent abutting plate 1212. In another embodiment, the middle portion of the fourth connecting plate 1211 may be bent in a direction away from the third connecting plate 1225 in a left-right and upward direction to form the bent abutting plate 1212. Specifically, this application does not limit this. Fig. 9 As shown, the bent abutment plate 1212 and the third connecting plate 1225 are spaced apart in the front-to-back direction, and the space is set to be L2, wherein L2≥10 mm.

[0076] Reference Figure 7 In one embodiment, the third connecting plate 1225 may be provided with two second reinforcing plates 1226 protruding from the surface of the fourth connecting plate 1211, and the two second reinforcing plates 1226 may be arranged at intervals in the left-right direction and extend in the up-down direction. The fourth connecting plate 1211 may be provided with two third reinforcing plates 1227 protruding from the surface of the third connecting plate 1225, and the two third reinforcing plates 1227 may be arranged at intervals in the left-right direction and extend in the up-down direction. By allowing the two third reinforcing plates 1227 to be respectively connected to the two second reinforcing plates 1226, the third connecting plate 1225 and the fourth connecting plate 1211 are firmly connected, the third connecting plate 1225 and the fourth connecting plate 1211 are prevented from being deformed by force, and the overall hardness and strength of the mounting bracket 120 are greatly improved.

[0077] Reference Figure 8In another embodiment, the mounting bracket 120 may include a horizontal plate 124 and a vertical plate 125, the two ends of the horizontal plate 124 may be bent upward to form a first flange 1241, the portion of the horizontal plate 124 sandwiched between the two first flanges 1241 may form a first connecting portion 121, the lower end of the vertical plate 125 and the rear end of the first connecting portion 121 may intersect vertically, the two ends of the vertical plate 125 may be bent forward to form two second flanges 1251, the rear end of the second flange 1251 may be connected to the lower end of the first flange 1241, and the portion of the vertical plate 125 sandwiched between the two second flanges 1251 may form a second connecting portion 122. With such a configuration, the structure is simple and easy to process, so that the horizontal plate 124 and the vertical plate 125 are firmly connected, the horizontal plate 124 and the vertical plate 125 are prevented from being deformed by force, and the overall hardness and strength of the mounting bracket 120 are greatly improved.

[0078] Reference Figures 5 to 9 In one embodiment, the first connection portion 121 may be provided with at least two strip holes 150 in the up-down direction, the at least two strip holes 150 may be spaced apart in the left-right direction, each strip hole 150 may be extended in the front-back direction, each strip hole 150 may be inserted into the first connection member, so as to fix the first connection portion 121 to the energy storage cabinet 110 through the first connection member. In this way, by providing the strip holes 150, the gap between the energy storage cabinet 110 and the wall can be adjusted as needed, which is convenient for heat dissipation and the arrangement and installation of the wiring harness.

[0079] It should be noted that, in the embodiment of the present application, the first connecting member may be a screw, and a threaded hole matching the screw is provided on the corresponding energy storage cabinet 110, and the threaded section of the screw inserted in the strip hole 150 may be threadedly connected to the threaded hole of the energy storage cabinet 110, thereby realizing a fixed connection between the first connecting portion 121 and the energy storage cabinet 110. When it is necessary to adjust the position of the energy storage cabinet 110, the screw is loosened, the position of the sliding screw is adjusted so that the gap between the energy storage cabinet 110 and the wall meets the requirements, and then the screw is tightened so that the position between the energy storage cabinet 110 and the first connecting portion 121 is fixed, and the operation is simple.

[0080] In one embodiment, the connection structure 130 may include a plurality of connection holes 131, which are spaced apart in the left-right direction, and each connection hole 131 is used for inserting a second connection member. The second connection portion 122 is fixedly connected to the wall through the plurality of second connection members, so that the second connection member and the wall are firmly connected.

[0081] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0082] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and 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 therefore should not be understood as a limitation on the present application.

[0083] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0084] In the description of the present application, “plurality” means two or more.

[0085] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0086] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0088] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage device, characterized in that: include: Energy storage cabinet; as well as, The mounting bracket includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the energy storage cabinet, the second connecting portion has a connecting structure for connecting to a wall, and the distance between the connecting structure and the back side of the energy storage cabinet in the front-to-back direction is greater than L1, satisfying: L1≥10mm.

2. The energy storage device according to claim 1, characterized in that: The energy storage cabinet includes a plurality of modules stacked in sequence in an up-down direction, a first module among the plurality of modules is provided with an avoidance groove on a wall surface directly opposite to an adjacent second module, the avoidance groove is open on the back side of the first module, and the first connecting portion extends from the avoidance groove to be connected to the first module or the second module.

3. The energy storage device according to claim 2, characterized in that: The avoidance groove is provided on the bottom surface of the first module, the second module is located below the first module, and the first connecting portion is connected to the upper surface of the second module.

4. The energy storage device according to claim 3, characterized in that: The first module is a control box, and the second module is a battery module.

5. The energy storage device according to any one of claims 1 to 4, characterized in that: The second connecting portion comprises: A first connecting plate, wherein the connecting structure is provided on the first connecting plate; a second connecting plate, opposite to and spaced from the first connecting plate, wherein the first connecting portion is connected to the second connecting plate; The partition is sandwiched between the first connecting plate and the second connecting plate, and two ends of the partition are respectively connected to the first connecting plate and the second connecting plate.

6. The energy storage device according to claim 5, characterized in that: The second connection portion also includes two first reinforcing plates sandwiched between the first connection plate and the second connection plate. The two first reinforcing plates are opposite to each other and spaced apart in the left-right direction. Both ends of each first reinforcing plate are respectively connected to the first connection plate and the second connection plate.

7. The energy storage device according to any one of claims 1 to 4, characterized in that: The mounting bracket includes a box body with an open upper end, a portion of a front plate of the box body is bent forward to form the first connecting portion, and a back plate of the box body forms the second connecting portion.

8. The energy storage device according to any one of claims 1 to 4, characterized in that: The second connecting portion includes a third connecting plate, and the connecting structure is provided on the third connecting plate; The first connecting portion includes a fourth connecting plate, the fourth connecting plate is arranged at an angle with the third connecting plate, one end of the fourth connecting plate is connected to the third connecting plate, and the other end of the fourth connecting plate is connected to the energy storage cabinet.

9. The energy storage device according to claim 8, characterized in that: A portion of the fourth connecting plate is bent in a direction away from the third connecting plate to form a bent abutting plate, and the bent abutting plate is used to abut against a side surface of the energy storage cabinet.

10. The energy storage device according to claim 8, characterized in that: Two second reinforcing plates are protruded from the surface of the third connecting plate facing the fourth connecting plate, and the two second reinforcing plates are arranged at intervals in the left-right direction and extend in the up-down direction; The surface of the fourth connecting plate facing the third connecting plate is protruded with two third reinforcing plates, the two third reinforcing plates are spaced apart in the left-right direction and extend in the upper front-back direction, and the two third reinforcing plates are respectively connected to the two second reinforcing plates.

11. The energy storage device according to any one of claims 1 to 4, characterized in that: The mounting bracket comprises: A horizontal plate, both ends of which are bent upward to form a first flange, and a portion of the horizontal plate sandwiched between the two flanges forms the first connecting portion; A vertical plate, the lower end of which intersects perpendicularly with the rear end of the first connecting portion, the two ends of the vertical plate are bent forward to form two second flanges, the rear end of the second flange is connected to the lower end of the first flange, and the vertical plate is clamped between the two second flanges to form the second connecting portion.

12. The energy storage device according to any one of claims 1 to 4, characterized in that: The first connecting portion is provided with at least two strip holes along the up-down direction, and the at least two strip holes are arranged at intervals along the left-right direction. Each of the strip holes is extended along the front-back direction, and each of the strip holes is used for inserting the first connecting member to fix the first connecting portion to the energy storage cabinet through the first connecting member.

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