CN116995359B

CN116995359B - Battery box, battery cluster, energy storage system and electric equipment

Info

Publication number: CN116995359B
Application number: CN202311236800.9A
Authority: CN
Inventors: 许文倩
Original assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-01-26
Anticipated expiration: 2043-09-25
Also published as: CN116995359A

Abstract

The application relates to a battery box, a battery cluster, an energy storage system and electric equipment, wherein a hanging device comprises a first side plate, the first side plate is provided with a welding part, and the first side plate is used for being welded and fixed on a box body through the welding part; the hanger device is also provided with a window which is communicated with the welding part. When the battery box is mounted, the first side plate is tightly attached to the outer wall of the box body to achieve attaching pre-positioning, welding is applied to the welding portion by operating the welding equipment, and the first side plate can be fixed on the box body in a welding mode, and therefore the hanging lug device and the battery box are assembled and fixed.

Description

Battery box, battery cluster, energy storage system and electric equipment

Technical Field

The application relates to the technical field of batteries, in particular to a battery box, a battery cluster, an energy storage system and electric equipment.

Background

Currently, to enable the integration of multiple battery cases for use, it is common to mount the multiple battery cases to a battery cluster frame to form a battery cluster. In order to facilitate the battery box to be hoisted to the battery cluster frame, the outer part of the battery box is generally provided with hanging lugs, the hanging lugs are locked and fixed with the box body through bolts, and during installation, the hanging hooks are connected with hanging holes on the hanging lugs, so that the battery box can be hoisted to the battery cluster frame.

However, because the weight of a single battery box is heavy, if the specification of the bolts is improper or the battery box is frequently hoisted for a long time, the bolts are extremely easy to deform and break, and the connection between the lugs and the battery box fails, so that the battery box is dropped and damaged; and the adoption of the bolted connection necessarily requires that a threaded hole is formed in the battery box, and the threaded hole is of an open structure and is a stress point, so that the protection level of the battery box can be influenced.

Disclosure of Invention

Based on this, it is necessary to provide a battery box, a battery cluster, an energy storage system and electric equipment aiming at the problems of poor connection reliability and influence on protection level.

In one aspect, the present application provides a battery box, comprising:

a case; the method comprises the steps of,

the hanging device is welded and fixed on the outer wall of the box body and comprises a first side plate, a welding part is arranged on the first side plate, and the first side plate is welded and fixed on the box body of the battery box through the welding part;

the hanger device is also provided with a window which is communicated with the welding part.

In the battery box of the scheme, the hanging lug device is assembled with the box body, so that the battery box is hoisted on the battery cluster frame. Specifically, a welding part is arranged on a first side plate of the hanging lug device, a window is simultaneously designed and manufactured, the window is communicated with the welding part, the first side plate is clung to the outer wall of the box body to achieve pasting pre-positioning during installation, welding is applied to the welding part by operating welding equipment, and the first side plate can be welded and fixed on the box body, so that the hanging lug device and the battery box are assembled and fixed. Compared with the prior art, the welding connection strength is higher, the bearing capacity is strong, the high falling damage in the hoisting and transferring process of the battery box caused by the connection failure of the hanging device and the battery box can be effectively avoided, the threaded hole is not required to be formed in the side wall of the box body in the welding installation mode, the integrity and the structural performance of the box body can be ensured, and the battery box is guaranteed to have excellent protection level.

The technical scheme of the application is further described below:

in one embodiment, the welding portion includes a welding through hole that is provided through the thickness direction of the first side plate. Continuous welding operation is carried out along the hole edge of the welding through hole and the annular joint of the outer wall of the box body, so that an annular welding body can be formed, the first side plate and the box body are welded and fixed, a larger welding area is obtained, and the welding strength is improved.

In one embodiment, the number of the welding through holes is at least two, and at least two welding through holes are arranged at intervals along the length direction of the first side plate. The increase of welding through-hole quantity for the welding point quantity of first curb plate and box increases, and the welding area also further increases, thereby improves the welding strength of hangers device and box greatly.

In one embodiment, the welding part further comprises an outer contour edge of the first side plate, and the outer contour edge of the first side plate is used for welding with a box body of the battery box to form a closed or semi-closed annular welding seam. The hanger device and the box body can be further welded and fixed, and the connection strength is improved.

In one embodiment, the hanging device is provided with a rectangular box body structure, and further comprises a second side plate, a top plate and a bottom plate, wherein the second side plate is arranged opposite to the first side plate, and the top plate is connected between the first side plate and the second side plate;

the window takes the connecting side edge of the second side plate and the bottom plate as a starting point, and extends to the connecting side edge of the first side plate and the top plate along the circumferential direction. The opening area of the window is large enough, so that more abundant operation space can be provided for welding equipment to apply welding processing to the welding part, and processing convenience is improved.

In one embodiment, the second side plate is provided with a first lifting hole and a second lifting hole, the first lifting hole is close to one end of the hanging lug device in the length direction, and the second lifting hole is close to the other end of the hanging lug device in the length direction. The two ends of the length direction of the hanging lug device are simultaneously subjected to uniform hanging force, so that the stability of the pose of the battery box is ensured, and the battery box is convenient to be mounted on a battery cluster frame subsequently.

In one embodiment, a side of the bottom plate away from the first side plate is set as an abutment side, and the abutment side is used for abutting against a battery cluster frame. The butt side can be through carrying out the butt with the battery cluster frame to realize the pre-installation location to the battery box, in order to improve the pre-installation stability.

In one embodiment, the hanging device further comprises a first end plate, the first end plate is arranged at one end of the hanging device in the length direction and is respectively connected with the first side plate, the top plate, the second side plate and the bottom plate, the first end plate is provided with a positioning hole, and the first end plate is used for being in positioning fit with the positioning plate on the battery cluster frame through the positioning hole. The first end plate and the locating plate are locked and fixed, so that the battery box is fixed on the battery cluster frame, and the installation stability and reliability are ensured.

In one embodiment, the hanging device further comprises a second end plate, the second end plate is arranged at the other end of the hanging device in the length direction and is respectively connected with the first side plate, the top plate, the second side plate and the bottom plate, an extension part is arranged at one end of the bottom plate corresponding to the second end plate, the extension part stretches out of the second end plate, and the extension part is provided with a fixing hole. The second extension part is fixedly locked with the battery cluster frame, so that the battery box can be more firmly fixed at the mounting position, and the stability and safety in the subsequent use and transportation processes are ensured.

In one embodiment, the case is rectangular, the length extension direction of the hanging device is consistent with the length direction of the case, and two ends of the hanging device in the length direction extend to two ends of the case in the length direction respectively to be matched with the battery cluster rack in a mounting manner. The contact area of the hanging device and the box body is increased, the welded area is larger after welding, and the connection strength and reliability of the hanging device and the box body are improved.

In another aspect, the present application also provides a battery box, which includes:

a case; the method comprises the steps of,

at least one hanger device as described above, said hanger device being welded to the outer wall of said housing.

In addition, the present application also provides a battery cluster, which includes:

a battery cluster frame; the method comprises the steps of,

at least one battery box as described above, said battery box being mounted on said battery cluster frame.

In addition, the application also provides an energy storage system, which comprises the battery cluster.

Finally, the present application also provides an electrical device, which includes:

an electricity consumption main body; the method comprises the steps of,

the energy storage system is electrically connected with the power utilization main body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an ear hanging device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a battery box in an embodiment.

Fig. 3 is a schematic view of a battery cluster according to an embodiment.

Fig. 4 is a schematic structural diagram of another view of fig. 3.

Fig. 5 is a schematic structural diagram of an energy storage system according to an embodiment.

Fig. 6 is a schematic structural diagram of an electric device according to an embodiment.

Reference numerals illustrate:

10. a hanging device; 11. a first side plate; 111. a welding part; 12. a window; 13. a second side plate; 131. a first lifting hole; 132. a second lifting hole; 14. a top plate; 15. a bottom plate; 151. an abutment side; 152. an extension; 152a, fixing holes; 16. a first end plate; 161. positioning holes; 17. a second end plate; 20. a case; 20a, a battery box; 30. a battery cluster; 31. a battery cluster frame; 311. a positioning plate; 100. an energy storage system; 200. an electric device; 210. an electricity-consuming body.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 and 2, fig. 2 shows a battery box 20a of an embodiment, which includes a box body 20 and at least one hanger device 10, wherein the hanger device 10 is welded and fixed on the outer wall of the box body 20.

The hanging device 10 can be used as an auxiliary lifting appliance of the battery box 20a, when the battery box 20a needs to be lifted onto the battery cluster frame 31, the hanging device 10 can be reliably connected with a lifting hook of lifting equipment, and the battery box 20a can be conveniently transported and lifted by the lifting equipment.

Alternatively, in order to ensure that the battery box 20a is stressed uniformly and stable in posture during the transferring and hanging processes, two hanging devices 10 are mounted on one box 20, and the two hanging devices 10 are respectively mounted on two opposite sides of the box 20.

Of course, when the case 20 is rectangular, four hanging devices 10 may be simultaneously provided, and each side wall of the case 20 is provided with one hanging device 10, so that stability and reliability of hanging the battery case 20a can be further improved.

In this embodiment, the case 20 is rectangular, the length extending direction of the hanging device 10 is consistent with the length direction of the case 20, and two ends of the hanging device 10 in the length direction extend to two ends of the case 20 in the length direction respectively to be mounted and matched with the battery cluster frame 31. The contact area between the hanging device 10 and the box body 20 is increased, and the welded area is larger after welding, so that the connection strength and reliability of the hanging device 10 and the box body 20 are improved; and the two ends of the hanger device 10 in the length direction are easier to be installed and fixed with the battery cluster frame 31, so that the influence of interference between the box body 20 and the battery cluster frame 31 on normal connection of the hanger device 10 and the battery cluster frame 31 is avoided.

Fig. 1 shows an embodiment of a suspension loop device 10 comprising a suspension loop device 10, the suspension loop device 10 comprising a first side plate 11, the first side plate 11 being provided with a weld 111, the first side plate 11 being intended to be welded to a housing 20 by means of the weld 111; the ear-hanging device 10 is further provided with a window 12, the window 12 being in communication with the weld 111.

With continued reference to fig. 3 and fig. 4, implementing the technical solution of the present embodiment has the following advantages: the hanger device 10 of the above-described embodiment is used for assembly with the case 20 so that the battery case 20a is hung on the battery cluster frame 31. Specifically, the welding part 111 is arranged on the first side plate 11 of the hanging device 10, the window 12 is simultaneously designed and manufactured, the window 12 is communicated with the welding part 111, the first side plate 11 is firstly clung to the outer wall of the box body 20 to realize overlaying pre-positioning during installation, and then the welding part 111 is welded by operating welding equipment, so that the first side plate 11 is welded and fixed on the box body 20, and the hanging device 10 and the box body 20 are assembled and fixed.

Compared with the prior art, the welding connection strength is higher, the bearing capacity is strong, the high falling damage in the lifting and transferring process of the battery box 20a caused by the connection failure of the hanging device 10 and the box 20 can be effectively avoided, the welding installation mode is not required to be provided with threaded holes on the side wall of the box 20, the integrity and the structural performance of the box 20 can be ensured, and the battery box 20a is ensured to have excellent protection level.

It will be appreciated that the purpose of the window 12 is that, after the first side plate 11 is brought into close proximity with the outer wall of the housing 20 of the battery box 20a, the welding apparatus can extend into the hanger device 10 from the other side of the hanger device 10 away from the housing 20 and contact the welding portion 111 so as to complete the welding operation of the first side plate 11 with the housing.

For example, the welding device may be, but is not limited to, a welding gun. The welding equipment can be manually operated by a welder or automatically and automatically finish welding operation, and the welding equipment is flexibly selected according to actual needs.

In some embodiments, the welding portion 111 includes a welding through hole disposed through the thickness direction of the first side plate 11.

On the one hand, during welding processing, the welding equipment can extend into the welding through hole, and continuous welding operation is carried out along the hole edge of the welding through hole and the annular seam of the outer wall of the box body 20, so that an annular welding body can be formed, the first side plate 11 and the box body 20 are welded and fixed, a larger welding area is obtained, and the welding strength is improved; on the other hand, the welding through holes reduce the manufacturing material of the first side plate 11, thereby achieving the weight reduction effect.

Further, in view of the large weight of the case 20, in order to enhance the welding strength between the hanger device 10 and the case 20 to obtain sufficient bearing capacity of the hanger device 10, at least two welding through holes are provided in this embodiment, and the at least two welding through holes are arranged at intervals along the length direction of the first side plate 11.

The number of the welding through holes is increased, so that the number of welding points between the first side plate 11 and the box body 20 is increased, the length of the welding lines is prolonged, the welding area is further increased, and the welding strength of the hanging device 10 and the box body 20 is greatly improved.

The shape and size of the welding through hole can be designed according to actual needs, for example, in this embodiment, the welding through hole adopts an oval hole, and the length direction of the oval hole is consistent with the length direction of the first side plate 11.

It should be noted that, on the basis of the application of welding to the welding through hole, the welding portion further includes an outer peripheral edge of the first side plate 11, and the outer peripheral edge of the first side plate 11 is used for welding with the case 20 of the battery case 20a to form a closed or semi-closed annular welding seam. Therefore, the first side plate 11 and the box body 20 are welded along the outer contour edge of the first side plate 11, so that the hanger device 10 and the box body 20 can be further welded and fixed, and the connection strength is improved.

Furthermore, on the basis of any of the above embodiments, the hanger device 10 is provided in a rectangular box structure. Compared with the prior art in which the hanging device 10 generally adopts a plate-shaped structure, the rectangular box body 20 has higher structural stability and stronger bearing capacity, and is beneficial to improving the assembly reliability of the hanging device 10 and the box body 20, so that the heavier box body 20 can be borne, and the problem of connection failure is prevented.

With continued reference to fig. 1, in particular, the suspension loop arrangement 10 comprises, in addition to the first side plate 11, a second side plate 13, a top plate 14 and a bottom plate 15. The first side plate 11 and the second side plate 13 are arranged opposite to each other at intervals, the top plate 14 and the bottom plate 15 are arranged opposite to each other at intervals, and the top plate 14 is connected between the first side plate 11 and the second side plate 13, so that the first side plate 11, the top plate 14, the second side plate 13 and the bottom plate 15 are sequentially connected in the circumferential direction.

The window 12 extends from the connecting side of the second side plate 13 and the bottom plate 15 to the connecting side of the first side plate 11 and the top plate 14 along the circumferential direction. At this time, the opening area of the window 12 is large enough to provide a more abundant operation space for the welding equipment to apply the welding process to the welding portion 111, improving the processing convenience.

Further, the second side plate 13 is provided with a first hanging hole 131 and a second hanging hole 132, the first hanging hole 131 is arranged near one end of the hanging device 10 in the length direction, and the second hanging hole 132 is arranged near the other end of the hanging device 10 in the length direction.

Therefore, when the hanging device 10 is welded and installed with the box body 20 and the battery box 20a is hoisted, two hanging hooks can be adopted to be connected with the first hoisting hole 131 and the second hoisting hole 132 simultaneously, so that the two ends of the hanging device 10 in the length direction are subjected to uniform hanging force simultaneously, the stability of the pose of the battery box 20a is further ensured, and the battery box 20a is convenient to be mounted on the battery cluster frame 31 subsequently.

With continued reference to fig. 1, a side of the bottom plate 15 away from the first side plate 11 is provided as an abutment side 151, and the abutment side 151 is used for abutting against the battery cluster frame 31. After the battery box 20a is lifted onto the battery cluster frame 31, the abutting side 151 can abut against the battery cluster frame 31, so that the pre-installation positioning of the battery box 20a is realized, the pre-installation stability is improved, and the battery box 20a is prevented from accidentally falling from the battery cluster frame 31 due to unstable gravity, vibration and other reasons before the battery box is not completely fixed.

With continued reference to fig. 1, fig. 3 and fig. 4, the hanger device 10 further includes a first end plate 16, where the first end plate 16 is disposed at one end of the hanger device 10 in the length direction and is connected to the first side plate 11, the top plate 14, the second side plate 13 and the bottom plate 15, and the first end plate 16 is provided with a positioning hole 161, and the first end plate 16 is used for positioning and matching with the positioning plate 311 on the battery cluster frame 31 through the positioning hole 161.

Specifically, the positioning plate 311 of the battery cluster frame 31 is provided with a through hole or a threaded hole, taking the threaded hole as an example, when the battery box 20a is hoisted to the battery cluster frame 31, the first end plate 16 is close to the positioning plate 311, and the positioning hole 161 is aligned with the threaded hole, so that the first end plate 16 and the positioning plate 311 can be locked and fixed by adopting the bolt group to pass through the positioning hole 161 and then locked to the threaded hole, thereby fixing the battery box 20a to the battery cluster frame 31, and ensuring stable and reliable installation.

In addition, in still other embodiments, the hanging device 10 further includes a second end plate 17, the second end plate 17 is disposed at the other end of the hanging device 10 in the length direction, and is connected to the first side plate 11, the top plate 14, the second side plate 13 and the bottom plate 15 respectively, one end of the bottom plate 15 corresponding to the second end plate 17 is provided with an extension portion 152, the extension portion 152 extends out of the second end plate 17, and the extension portion 152 is provided with a fixing hole 152a.

Similarly, the battery cluster frame 31 is further provided with a matching hole, the matching hole can be a through hole or a threaded hole, taking the threaded hole as an example, the first end plate 16 and the positioning plate 311 are accurately matched, the fixing hole 152a on the extending part 152 can be aligned with the threaded hole, and the bolt group is adopted to pass through the fixing hole 152a and then is locked in the threaded hole, so that the second extending part 152 and the battery cluster frame 31 can be locked and fixed, the effect of simultaneously locking two sides of the battery box 20a is achieved, the battery box 20a can be more firmly fixed at the installation position, and the stability and safety in the subsequent use and transportation process are ensured.

Further, when the hanger device 10 in this embodiment is in the installation and use state, the first end plate 16 is in the vertical plane and is consistent with the lifting direction of the lifting device, and the extension portion 152 is in the horizontal plane, so that the difficulty in aligning the battery box 20a lifted to the battery cluster frame 31 can be reduced, that is, even if a certain transverse distance exists between the first end plate 16 and the positioning plate 311 due to errors during the lifting device, after the battery box 20a is lifted to the battery cluster frame 31, only the battery box 20a needs to be moved transversely, so that the first end plate 16 and the positioning plate 311 can be matched accurately and the fixing hole 152a on the extension portion 152 can be aligned with the threaded hole synchronously.

As shown in fig. 5, in addition to the above, the present application further provides an energy storage system 100, which includes an energy storage cabinet, a battery cluster 30, a liquid cooling unit, and the like. The battery cluster 30 and the liquid cooling unit are respectively arranged at preset positions in the energy storage cabinet, the battery cluster 30 comprises a battery cluster frame 31 and at least one battery box 20a as above, and the battery box 20a is arranged on the battery cluster frame 31.

Preferably, two or more battery boxes 20a are simultaneously mounted on one battery cluster frame 31, so that the energy storage capacity of the energy storage cabinet can be increased. The liquid cooling unit is connected with the battery box 20a through a liquid cooling pipeline, so that the heat management of the battery box 20a can be realized, and the battery box 20a can work safely and reliably for a long time.

With continued reference to fig. 6, the present application further provides an electrical device 200, including an electrical main body 210 and an energy storage system 100, where the energy storage system 100 is electrically connected to the electrical main body 210.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A battery box, comprising:

a case; the method comprises the steps of,

the hanging device is also provided with a window which is communicated with the welding part;

the box body is rectangular, the length extension direction of the hanging lug device is consistent with the length direction of the box body, and the two ends of the hanging lug device in the length direction extend to the two ends of the box body in the length direction respectively so as to be matched with the battery cluster frame in a mounting way;

the hanging device is of a rectangular box structure and further comprises a second side plate, a top plate and a bottom plate, wherein the second side plate is arranged opposite to the first side plate, and the top plate is connected between the first side plate and the second side plate; the second side plate is provided with a first lifting hole and a second lifting hole, the first lifting hole is arranged close to one end of the hanging lug device in the length direction, and the second lifting hole is arranged close to the other end of the hanging lug device in the length direction;

the window takes the connecting side edge of the second side plate and the bottom plate as a starting point, and extends to the connecting side edge of the first side plate and the top plate along the circumferential direction.

2. The battery box according to claim 1, wherein the welding portion includes a welding through hole provided through a thickness direction of the first side plate.

3. The battery box according to claim 2, wherein at least two of the welding through holes are provided, and at least two of the welding through holes are arranged at intervals along the length direction of the first side plate.

4. The battery box of claim 2, wherein the weld further comprises an outer contoured edge of the first side plate for welding with a box body of the battery box to form a closed or semi-closed girth weld.

5. The battery box of claim 1, wherein a side of the bottom plate remote from the first side plate is provided as an abutment side for abutting against a battery cluster frame.

6. The battery box of claim 1, wherein the hanger device further comprises a first end plate disposed at one end of the hanger device in a length direction and connected to the first side plate, the top plate, the second side plate and the bottom plate, respectively, the first end plate being provided with positioning holes for positioning engagement with the positioning plates on the battery cluster frame through the positioning holes.

7. The battery box according to claim 1, wherein the hanger device further comprises a second end plate disposed at the other end of the hanger device in the length direction and connected to the first side plate, the top plate, the second side plate and the bottom plate, respectively, an extension portion is provided at one end of the bottom plate corresponding to the second end plate, the extension portion protrudes out of the second end plate, and the extension portion is provided with a fixing hole.

8. A battery cluster, comprising:

a battery cluster frame; the method comprises the steps of,

at least one battery box according to any one of claims 1 to 7, which is mounted on the battery cluster frame.

9. An energy storage system comprising the battery cluster of claim 8.

10. A powered device, comprising:

an electricity consumption main body; the method comprises the steps of,

the energy storage system of claim 9, the energy storage system being electrically connected to the power-consuming body.