Battery pack fixing assembly, energy storage device and energy storage equipment

Abstract

The utility model discloses a battery pack fixing assembly, an energy storage device and energy storage equipment, and relates to the technical field of battery pack storage devices. The battery pack fixing assembly comprises at least three supporting pieces, each supporting piece comprises a column body and a plurality of supporting bodies, and the supporting bodies are arranged at intervals in the preset direction and connected with the column body; wherein the at least three supporting pieces are arranged at intervals and annularly arranged on the peripheral sides of the multiple battery packs, the column bodies are used for abutting against the side faces of the battery packs, the supporting bodies are arranged between every two adjacent battery packs and abut against the bottom faces of the battery packs, and the multiple supporting bodies abutting against the bottom face of the same battery pack are arranged at intervals. The battery pack fixing assembly provided by the utility model is low in material consumption, simple in structure and low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pack storage devices, in particular to a battery pack fixing assembly, an energy storage device and an energy storage equipment. BACKGROUND

[0002] At present, the existing battery pack storage and transportation method is to install the battery pack in a cabinet and transport the whole machine to the user. The cabinet for storing the battery pack usually needs to be customized, and the structure is complex and expensive. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a battery pack fixing assembly, an energy storage device and an energy storage equipment to solve one of the technical problems in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] In a first aspect, the present application provides a battery pack fixing assembly, comprising:

[0006] At least three supporting members, each of which comprises a column body and a plurality of supporting bodies, the plurality of supporting bodies being spaced apart along a predetermined direction and connected to the column body respectively;

[0007] Among them, the at least three supporting members are spaced apart and arranged around the periphery of a plurality of battery packs, the column body abuts the side surface of the battery pack, the supporting body is arranged between two adjacent battery packs and abuts the bottom surface of the battery pack, and a plurality of supporting bodies abutting the same bottom surface of the battery pack are spaced apart.

[0008] In one embodiment of the first aspect, the column body comprises at least one sub-column body, the supporting body comprises a first supporting block, two adjacent sub-column bodies are connected by the first supporting block, and the first supporting block is arranged between two adjacent battery packs and abuts the bottom surface of the battery pack.

[0009] In one embodiment of the first aspect, the sub-column body is provided with two first connecting parts, the two first connecting parts are spaced apart along the predetermined direction, the first connecting part is arranged at the end of the sub-column body, and the first supporting block is connected with the first connecting part.

[0010] In one embodiment of the first aspect, the sub-column body is further provided with at least one second connecting part, and the at least one second connecting part is arranged between the two first connecting parts.

[0011] The support body further comprises at least one second support block, one of the second support blocks is connected with one of the second connecting parts, and the second support block is arranged between two adjacent battery packs and abuts against the bottom surface of the battery packs.

[0012] In one of the embodiments of the first aspect, the first support block comprises a shell and a reinforcing body, the reinforcing body is accommodated in the shell, and two first connecting parts are arranged on the reinforcing body and are connected with the first connecting parts of the adjacent sub-column bodies, respectively.

[0013] In one of the embodiments of the first aspect, the reinforcing body comprises a plurality of reinforcing ribs, the ends of the reinforcing ribs are connected with the inner wall of the shell, and the reinforcing ribs are arranged in a cross shape.

[0014] In the second aspect, the embodiments of the present application further provide a power storage device, which comprises:

[0015] a plurality of battery packs, the battery packs are arranged at intervals along the preset direction, and the battery packs comprise a shell;

[0016] In any of the above embodiments, the battery pack fixing assembly, the support body and the column body are electrically connected, and at least one of the support members is electrically connected with the shell.

[0017] In one of the embodiments of the second aspect, the support body and the column body are made of a metal material, and the shell is provided with an electrically conductive area, the electrically conductive area is arranged at the abutting position of the column body and the shell and / or the electrically conductive area is arranged at the abutting position of the support body and the shell.

[0018] In one of the embodiments of the second aspect, the battery pack fixing assembly is further provided with a grounding terminal, and the grounding terminal is electrically connected with the shell.

[0019] In the third aspect, the embodiments of the present application further provide a power storage device, which comprises the power storage device in any of the above embodiments.

[0020] Compared with the prior art, the present application has the following beneficial effects: the present application provides a battery pack fixing assembly, which comprises at least three support members, the support members comprise a column body and a plurality of support bodies, the support bodies are arranged at intervals along a preset direction and are connected with the column body, respectively; wherein, the at least three support members are arranged at intervals and are arranged around the circumferential side of the plurality of battery packs, the column body abuts against the side surface of the battery pack, and the circumferential side of the battery pack is limited;

[0021] The support body is arranged between two adjacent battery packs and abuts the bottom surface of the battery pack to support and fix the battery pack. In the related art, the support body arranged below the battery pack is a continuous structure for linear support or surface support of the battery pack. In the present application, the plurality of support bodies abutting the bottom surface of the same battery pack are arranged at intervals to support the battery pack at multiple points, so that the battery pack can be stably placed, the structure of the support body is simplified, the consumables are saved, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 A perspective view of a battery pack energy storage device in some embodiments of the present application is shown.

[0024] Figure 2 Another perspective view of a battery pack energy storage device in some embodiments of the present application is shown.

[0025] Figure 3 An exploded view of a sub-column and a support body in some embodiments of the present application is shown.

[0026] Figure 4 An assembled view of a sub-column and a support body in some embodiments of the present application is shown.

[0027] Figure 5 A structural view of a first support block in some embodiments of the present application is shown.

[0028] Main element symbol explanation: 1000-energy storage device; D1-preset direction;

[0029] 110-battery pack; 111-side surface; 112-bottom surface; 113-top surface; 114-outer shell; 115-conductive area;

[0030] 120-support; 121-column; 122-support body; 1211-sub-column; 1221-first support block; 12111-first connecting part; 12112-second connecting part; 1222-second support block; 12211-housing; 12212-strengthening body; 12213-first docking part; 12214-stiffening rib; 12215-intersection. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described below in detail with reference to examples shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0032] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] In the related art, in addition to fixing the battery pack by using a cabinet, in some schemes, a fixing frame is also used to fix the battery pack. Compared with the cabinet, the structure of the fixing frame is simpler and the cost is lower. Generally, the structure of the fixing frame is four vertical support rods, and a horizontal plate is installed on the vertical support rods for placing the battery pack. Thus, the structure of the fixing frame is complex and the amount of materials is large.

[0037] As shown in Figure 1 , the embodiment of the present application provides a battery pack fixing assembly (not shown in the figure) for fixing the battery pack 110.

[0038] The battery pack fixing assembly comprises at least three support members 120, the support member 120 comprises a column body 121 and a plurality of support bodies 122, the plurality of support bodies 122 are arranged at intervals along a preset direction D1 and are connected with the column body 121 respectively.

[0039] Among them, the at least three support members 120 are arranged at intervals and annularly arranged on the circumferential side of the plurality of battery packs 110, the column body 121 abuts against the side surface 111 of the battery pack 110, and the circumferential side of the battery pack 110 is limited.

[0040] The support body 122 is arranged between the adjacent two battery packs 110 and abuts against the bottom surface 112 of the battery pack 110, and the battery pack 110 is supported and fixed. In the related art, the support body 122 arranged below the battery pack 110 is a continuous structure, which linearly supports or face supports the battery pack 110. In the present application, the plurality of support bodies 122 abutting against the bottom surface 112 of the same battery pack 110 are arranged at intervals, which multi-point supports the battery pack 110, so that the battery pack 110 can be stably placed, the structure of the support body 122 is simplified, the materials are saved, and the cost is reduced.

[0041] In the present embodiment, the support body 122 is arranged between the adjacent two battery packs 110, the support body 122 abuts against the bottom surface 112 of the upper battery pack 110, and also abuts against the top surface 113 of the lower battery pack 110, so as to reduce the volume of the battery pack fixing assembly.

[0042] It should be noted that the preset direction D1 is the height direction of the battery pack 110, the top surface 113 and the bottom surface 112 of the battery pack 110 are perpendicular to the preset direction D1 respectively, and the side surface 111 of the battery pack 110 is parallel to the preset direction D1.

[0043] As shown in Figure 1 , the battery pack 110 has four side surfaces 111 arranged parallel to the preset direction D1. One of the side surfaces 111 is provided with a plurality of ports for wiring, so that the adjacent battery packs 110 are connected in series or in parallel.

[0044] Each battery pack 110 is placed in the same direction, and the sides 111 for connecting multiple battery packs 110 in series or in parallel are spaced apart along a preset direction D1 to facilitate wiring.

[0045] To avoid interference between the support member 120 and the wires, in this embodiment, the support member 120 is not located on the side where the battery pack 110 is connected, and at least three support members 120 are arranged around the other three sides 111 of the battery pack 110.

[0046] There are two ways to arrange at least three support members 120 rings around the battery pack 110.

[0047] One method is that the column 121 of the support member 120 abuts against three different sides 111 of the battery pack 110. In this way, the three supports 122 abutting against the bottom surface 112 of the same battery pack 110 form a three-point support for the battery pack 110, and the line connecting the three points forms a triangle, which provides stable support for the battery pack 110.

[0048] It is understood that the number of multiple support members 120 located on the same side 111 of the battery pack 110 can be increased or decreased as needed, and the multiple support members 120 abutting against the same side 111 of the battery pack 110 are spaced apart.

[0049] Another way is: such as Figure 1 As shown, the two opposite sides 111 of the support member 120 abut against each other. In this way, the four support bodies 122 abutting against the bottom surface 112 of the same battery pack 110 form a four-point support for the battery pack 110, and the line connecting the four points forms a quadrilateral, providing stable support for the battery pack 110.

[0050] It is understandable that the number of multiple support members 120 located on the same side 111 of the battery pack 110 can be increased or decreased as needed, and the multiple support members 120 abutting against the same side 111 of the battery pack 110 can be spaced apart.

[0051] In related technologies, some fixtures cannot be disassembled after they are manufactured, and their overall structure and size are fixed, which takes up a lot of space and is not conducive to transportation; some fixtures can be disassembled, but the size of the disassembled parts is large, which is not conducive to storage and transportation.

[0052] To address the aforementioned issues, the column 121 includes at least one sub-column 1211, and the support 122 includes a first support block 1221. The first support block 1221 connects two adjacent sub-columns 1211 and is positioned between two adjacent battery packs 110, abutting against the bottom surface 112 of the battery pack 110. By providing at least one sub-column 1211, and connecting adjacent sub-columns 1211 via the first support block 1221, the volume of the column 121 can be reduced, facilitating storage and transportation.

[0053] The first support block 1221 has the functions of connecting two adjacent sub-pillars 1211, supporting the battery pack 110, and separating two adjacent battery packs 110 to avoid mutual extrusion and deformation of the battery packs 110.

[0054] In some embodiments, the sub-pillar 1211 is provided with two first connecting portions 12111, which are arranged at intervals along the preset direction D1. The first connecting portion 12111 is arranged at the end of the sub-pillar 1211, and the first support block 1221 is connected with the first connecting portion 12111.

[0055] In the present embodiment, as shown in Figure 3 , the first connecting portion 12111 is two spaced screw holes, and each screw hole is provided with a screw. In other embodiments, the first connecting portion 12111 is a protrusion capable of being clamped, or the first connecting portion 12111 is a groove capable of clamping the protrusion.

[0056] In some embodiments, the sub-pillar 1211 is further provided with at least one second connecting portion 12112, which is arranged between the two first connecting portions 12111.

[0057] The support body 122 further comprises at least one second support block 1222, one second support block 1222 corresponding to one second connecting portion 12112. The second support block 1222 is arranged between two adjacent battery packs 110 and abuts against the bottom surface 112 of the battery pack 110.

[0058] It can be understood that the length of the sub-pillar 1211 can be set as required.

[0059] In the present embodiment, as shown in Figure 3 , the length of each sub-pillar 1211 = the height of a single battery pack 110 + the height of a single first support block 1221. In this way, the second support block 1222 can be omitted, and the specifications of each sub-pillar 1211 are uniform, improving the processing efficiency. When it is necessary to assemble battery packs 110 of different heights, the length of the sub-pillar 1211 can be adjusted accordingly.

[0060] In other embodiments, as shown in Figure 4 , the length of the sub-pillar 1211 = N*the height of the battery pack 110 + the height of the first support block 1221 + M*the height of the second support block 1222. Wherein, N and M are positive integers, N≥2, M≥1. By lengthening the length of the sub-pillar 1211, the assembly efficiency of the battery pack fixing assembly and the plurality of battery packs 110 can be improved. In addition, by adjusting the connecting position of the second support block 1222 and the sub-pillar 1211, the sub-pillar 1211 can be placed on battery packs 110 of different heights.

[0061] In the embodiment, the sub-column 1211 is in the shape of a long strip, reducing the consumption of materials and the cost. In other embodiments, the sub-column 1211 is in the shape of a long hollow structure, such as a square, a triangle, an I-shaped, a D-shaped, etc., in cross section, improving the stability, reducing the weight, and reducing the cost.

[0062] In the embodiment, the first support block 1221 and the second support block 1222 are of the same structure, improving the consistency of the support body 122, reducing the processing procedures, and reducing the cost.

[0063] In some embodiments, the first support block 1221 comprises a shell 12211 and a reinforcing body 12212, and the reinforcing body 12212 is accommodated in the shell 12211. In this way, the first support block 1221 is in the shape of a hollow structure, reducing the consumption of materials and the cost, and at the same time, the strength of the first support block 1221 is improved by setting the reinforcing body 12212, reducing or even preventing the deformation of the first support block 1221, and prolonging the service life.

[0064] The reinforcing body 12212 is provided with two first connecting parts 12213, and the two first connecting parts 12213 are respectively connected with the first connecting part 12111 of the adjacent sub-column 1211. As shown in Figure 3 , the first connecting part 12213 is two spaced screw holes, which are connected with the screw in the first connecting part 12111. The shape and structure of the first connecting part 12213 can be adjusted accordingly with the change of the first connecting part 12111.

[0065] It should be noted that the first connecting part 12111 and the first connecting part 12213 can also be electrically connected, so that the sub-column 1211 and the first support block 1221 are electrically connected.

[0066] In some embodiments, the reinforcing body 12212 comprises a plurality of reinforcing ribs 12214, and the end of each reinforcing rib 12214 is connected with the inner wall of the shell 12211. The plurality of reinforcing ribs 12214 are cross-connected and form a cross point 12215, and the cross section of the cross point 12215 is in the shape of a ring, such as a circle, a square, a triangle, a polygon, etc.

[0067] As shown in Figure 5 , the four reinforcing ribs 12214 are cross-connected, and the cross point 12215 is located at the center position of the shell 114, so that the reinforcing body 12212 effectively and uniformly supports the four directions of the shell 12211.

[0068] Compared with the intersection 12215 being a solid intersection 12215, by setting the cross section of the intersection 12215 in a ring shape, the stress surface of the intersection 12215 is increased, the pressure bearing capacity of the reinforcing body 12212 is enhanced, and a fixing surface is also provided to fix the first butt joint 12213.

[0069] By setting the reinforcing body 12212, the first support block 1221 has good load bearing capacity. Figure 1 and Figure 2 As shown in the drawings, the four first support blocks 1221 at the lowermost position support the entire battery pack fixing assembly, and the first support blocks 1221 are not prone to deformation, so that a support base does not need to be additionally made, and the cost is reduced.

[0070] In some embodiments, the sub-column 1211 is a sheet metal part, and the first support block 1221 is an aluminum extrusion. The cost of a single aluminum extrusion and sheet metal part is about 5-6 yuan, and compared with the customized cabinet and fixing frame in the related art, the economic benefit of the present application is significant.

[0071] Sheet metal part refers to a metal part manufactured by sheet metal processing technology.

[0072] Aluminum extrusion is a part manufactured by aluminum extrusion process. Aluminum extrusion is used to produce various profiles with complex cross sections. Aluminum extrusion has the advantages of light weight, high strength, good thermal and electrical conductivity, and corrosion resistance.

[0073] In the related art, a plurality of battery packs stored in the cabinet or fixing frame need to be connected through grounding wires, and then connected to an external grounding point, so that the grounding wires need to be used, and multiple connection operations need to be performed.

[0074] To solve the above problems, the present application also provides a power storage device 1000, which comprises a plurality of battery packs 110 and the battery pack fixing assembly in any of the above embodiments.

[0075] The plurality of battery packs 110 are arranged at intervals along a predetermined direction D1, the battery pack 110 comprises an outer shell 114, the support body 122 and the column 121 are electrically connected, and at least one support 120 is electrically connected with the outer shell 114, so that the support body 122 and the column 121 play a role of replacing the grounding wire, and the grounding wire does not need to be additionally arranged, thereby reducing the cost.

[0076] In the present embodiment, the support body 122 and the column 121 are made of metal material, and the outer shell 114 is provided with a conductive area 115, the conductive area 115 is arranged at the abutting position of the column 121 and the outer shell 114, and / or the conductive area 115 is arranged at the abutting position of the support body 122 and the outer shell 114.

[0077] It should be noted that the shell 114 of the battery pack 110 is usually provided with an insulating coating, and the conductive area 115 is not provided with an insulating coating. The shell 114 not provided with an insulating coating is in abutment with the support body 122 or the column body 121, that is, the electrical connection can be achieved, and the structure is simple and practical.

[0078] In the embodiment, the shape of the conductive area 115 is rectangular, and in other embodiments, the shape of the conductive area 115 can be set as required.

[0079] In the embodiment, as shown in Figure 1 The conductive areas 115 of the plurality of battery packs 110 are uniformly arranged at the abutment positions of the sub-column bodies 1211 and the shells 114, so that the current on the shell 114 of each battery pack 110 is transmitted to the corresponding sub-column body 1211, the adjacent sub-column bodies 1211 are conducted through the first support block 1221, and the electrical connection between the shells 114 of the plurality of battery packs 110 is formed through the support 120.

[0080] In the embodiment, the energy storage device 1000 is also provided with a grounding terminal (not shown in the figure), which is arranged on any battery pack 110, and the grounding terminal is electrically connected with the shell 114 of the battery pack 110, and then the grounding terminal and an external grounding point are connected through a grounding wire, so that all the battery packs 110 are grounded, and the installation is simplified.

[0081] In other embodiments, the lowermost first support block 1221 can also be installed on a grounding seat through a grounding seat to achieve grounding, and the grounding terminal can also be arranged on the support 120, and then the grounding terminal and an external grounding point are connected through a grounding wire, so that all the battery packs 110 are grounded, and the installation is simplified.

[0082] The application also provides an energy storage device, which includes the energy storage device 1000 in any of the above embodiments, and thus has all the beneficial effects of the energy storage device 1000 in any of the above embodiments, which will not be repeated here.

[0083] The column support 120 and the battery pack 110 are assembled to form a rack-type energy storage product, which has a simple structure and low cost compared with the 19-inch standard cabinet or non-standard cabinet in the related art, and can reduce the selling price to benefit the users economically.

[0084] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terms "comprise", "comprising", "include", "including", "contain", "containing" or variations thereof are used inclusively and do not exclude the additional inclusion of unrecited features, structures, materials, or characteristics.

[0085] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be interpreted as limiting the present application, and ordinary skilled people in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A battery pack fixing assembly, characterized in that, include: At least three support members (120), each of the support members (120) includes a column (121) and a plurality of support bodies (122), the plurality of support bodies (122) are spaced apart along a preset direction (D1) and are respectively connected to the column (121); The at least three support members (120) are spaced apart and arranged around the periphery of the plurality of battery packs (110). The column (121) is used to abut against the side (111) of the battery pack (110). The support (122) is located between two adjacent battery packs (110) and abuts against the bottom surface (112) of the battery pack (110). The plurality of support members (122) abutting against the bottom surface (112) of the same battery pack (110) are spaced apart.

2. The battery pack fixing assembly according to claim 1, characterized in that, The column (121) includes at least one sub-column (1211), and the support (122) includes a first support block (1221). Two adjacent sub-columns (1211) are connected by the first support block (1221). The first support block (1221) is located between two adjacent battery packs (110) and abuts against the bottom surface (112) of the battery pack (110).

3. The battery pack fixing assembly according to claim 2, characterized in that, The sub-column (1211) is provided with two first connecting parts (12111), the two first connecting parts (12111) are arranged at intervals along the preset direction (D1), the first connecting parts (12111) are located at the ends of the sub-column (1211), and the first support block (1221) is connected to the first connecting parts (12111).

4. The battery pack fixing assembly according to claim 3, characterized in that, The sub-pillar (1211) is also provided with at least one second connecting part (12112), which is located between the two first connecting parts (12111); The support (122) further includes at least one second support block (1222), one second support block (1222) is connected to one second connecting part (12112), the second support block (1222) is disposed between two adjacent battery packs (110) and abuts against the bottom surface (112) of the battery pack (110).

5. The battery pack fixing assembly according to claim 3, characterized in that, The first support block (1221) includes a shell (12211) and a reinforcing body (12212). The reinforcing body (12212) is housed within the shell (12211). The reinforcing body (12212) is provided with two first docking portions (12213). The two first docking portions (12213) are respectively connected to the first connecting portions (12111) of the adjacent sub-pillars (1211).

6. The battery pack fixing assembly (100) according to claim 5, characterized in that, The reinforcing body (12212) includes a plurality of reinforcing ribs (12214), the end of each reinforcing rib (12214) being connected to the inner wall of the shell (12211), and the plurality of reinforcing ribs (12214) being arranged crosswise.

7. An energy storage device, characterized in that, include: Multiple battery packs (110) are arranged at intervals along the preset direction (D1), and each battery pack (110) includes a housing (114). The battery pack fixing assembly (100) according to any one of claims 1 to 6, wherein the support (122) and the column (121) are electrically connected, and at least one of the support members (120) is electrically connected to the outer casing (114).

8. The energy storage device according to claim 7, characterized in that, The support (122) and the column (121) are made of metal. The outer shell (114) is provided with a conductive area (115). The conductive area (115) is located at the contact position between the column (121) and the outer shell (114) and / or the conductive area (115) is located at the contact position between the support (122) and the outer shell (114).

9. The energy storage device according to claim 7, characterized in that, The energy storage device (1000) is also provided with a grounding terminal, which is electrically connected to the outer casing (114).

10. An energy storage device, characterized in that, The energy storage device (1000) includes any one of claims 7 to 9.

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