Wall structure, box body and energy storage device

Abstract

The invention discloses a wall body structure, a box body and an energy storage device, and relates to the technical field of energy storage, the wall body structure comprises a first wall plate and a second wall plate, the first wall plate comprises a first connecting end portion, the first connecting end portion is provided with a first notch, the second wall plate comprises a second connecting end portion, the second connecting end portion is connected with the first connecting end portion, and the second connecting end portion is provided with a second notch. The second connecting end part is provided with a second gap, and the first gap and the second gap are opposite and communicated to form an accommodating space. The technical problem that an energy storage device is insufficient in protection strength for equipment such as a battery assembly is solved.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a wall structure, a box and an energy storage device. Background Art

[0002] Battery modules and other equipment can experience thermal runaway in certain circumstances, leading to fire or explosion. Therefore, fire prevention and heat insulation measures should be implemented in energy storage devices used to house battery modules and other equipment to effectively reduce fire risks and protect equipment and personnel. However, existing energy storage devices do not provide adequate protection for battery modules and other equipment. Summary of the Invention

[0003] The present application provides a wall structure, a box and an energy storage device to solve the technical problem that the energy storage device has insufficient protection strength for equipment such as battery components.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a wall structure, which includes a first wall panel and a second wall panel, the first wall panel includes a first connecting end portion, the first connecting end portion is provided with a first notch, the second wall panel includes a second connecting end portion, the second connecting end portion is connected to the first connecting end portion, the second connecting end portion is provided with a second notch, the first notch and the second notch are opposite to each other and connected to form an accommodating space.

[0006] The wall structure in the present application further includes a first reinforcement member, which is disposed in the accommodating space.

[0007] In this way, by setting a first reinforcement, the present application can effectively improve the local strength of the wall structure at the joint, and can optimize the connection performance between the first wall panel and the second wall panel, ensuring that the first wall panel and the second wall panel can have a certain strength, thereby meeting the protection strength requirements of equipment such as battery components.

[0008] Moreover, the first reinforcement member in the present application is arranged in the accommodating space formed by the joint of the first wall panel and the second wall panel. It can be understood that although there is a gap at the joint of the first wall panel and the second wall panel, the first reinforcement member strengthens the strength of the entire wall structure internally, thereby strengthening the strength at the gap.

[0009] In this way, even if the wall structure is formed by splicing multiple wall panels, the strength of the splicing is enhanced due to the reinforcing effect of the first reinforcement. In this way, when encountering severe weather or special conditions, electric current or fire will not flow through the gaps in the splicing, further improving the reliability of the wall structure. At the same time, the reliability of the energy storage device formed by the wall structure is also enhanced, thereby further improving the protection of the entire energy storage device to the battery assembly.

[0010] In some embodiments, the first connecting end portion is provided with a recessed portion, the first notch extending from the bottom surface of the recessed portion in a direction away from the second connecting end portion. The second connecting end portion is provided with a raised portion, the raised portion being received in the recessed portion, and the second notch extending from the top surface of the raised portion in a direction away from the first connecting end portion.

[0011] In some embodiments, the recessed portion includes an open end and a first bottom end, the first bottom end being located on the side of the open end near the first notch, and the width of the open end being smaller than the width of the first bottom end. The raised portion includes a top end and a second bottom end, the second bottom end being located on the side of the top end near the first notch, and the top end being accommodated within the recessed portion. The width of the top end is larger than the width of the open end.

[0012] In some embodiments, along a length direction of the first connecting end, the first wall panel includes a first edge, and the recessed portion extends through the first edge.

[0013] In some embodiments, the materials of the first wall panel, the second wall panel, and the first reinforcement member all include silicate.

[0014] In some embodiments, the wall structure of the present application further includes a second reinforcement member, and the second reinforcement member is located on one side of the connection portion between the first connection end and the second connection end.

[0015] The second reinforcement member includes a first reinforcement portion and a second reinforcement portion that are connected, the orthographic projection of the first reinforcement portion on the first wall panel is at least partially located at the first connection end, and the first reinforcement portion is fixedly connected to the first connection end; the orthographic projection of the second reinforcement portion on the second wall panel is at least partially located at the second connection end, and the second reinforcement portion is fixedly connected to the second connection end.

[0016] In some embodiments, the second reinforcement member includes a first plate portion, a second plate portion and a connecting member, the first plate portion is located on one side of the connecting portion between the first connecting end portion and the second connecting end portion, and the first reinforcement portion and the second reinforcement portion are located on the first plate portion, and the second plate portion is located on the side of the first plate portion away from the connecting portion.

[0017] The connecting member is connected between the first plate portion and the second plate portion. Along the first direction, the width of the first plate portion is greater than the width of the connecting member.

[0018] In some embodiments, the first direction is perpendicular to the length direction of the first connecting end portion.

[0019] In some embodiments, the connecting member is connected to a middle portion of the first plate portion along the first direction.

[0020] In some embodiments, the wall structure of the present application also includes a protective plate, which is arranged on the side of the first wall panel close to the second reinforcement. The protective plate includes a first protective part, a second protective part and a third protective part connected in sequence. The first protective part is connected to the first wall panel, the second protective part is connected to the connecting plate and at least one of the first panel part, and part of the third protective part is connected to the second panel part.

[0021] In some embodiments, at least one of the materials of the protection plate and the second reinforcement comprises unsaturated polyester glass fiber.

[0022] In some embodiments, the wall structure of the present application further includes a third reinforcement member, which is located on a side of the connection portion away from the second reinforcement member.

[0023] The third reinforcement member includes a connected third reinforcement portion and a fourth reinforcement portion, the orthographic projection of the third reinforcement portion on the first wall panel is at least partially located at the first connection end, and the third reinforcement portion is fixedly connected to the first connection end; the orthographic projection of the fourth reinforcement portion on the second wall panel is at least partially located at the second connection end, and the fourth reinforcement portion is fixedly connected to the second connection end.

[0024] In a second aspect, an embodiment of the present application provides a box body, which includes a plurality of interconnected wall structures, at least one of which is the above-mentioned wall structure.

[0025] On the third aspect, an embodiment of the present application provides a box body, which includes multiple interconnected wall structures and at least one shelf, at least one of the wall structures is the above-mentioned wall structure, the shelf is connected to the second plate portion, and the shelf is arranged on the side of the second plate portion facing away from the connecting piece.

[0026] In a fourth aspect, an embodiment of the present application provides an energy storage device, which includes the above-mentioned box and a battery assembly, wherein the box forms a receiving cavity, and the battery assembly is disposed in the receiving cavity.

[0027] In a fifth aspect, an embodiment of the present application provides an energy storage device, which includes the above-mentioned box and battery assembly, the box forms a accommodating cavity, the battery assembly is arranged in the accommodating cavity, and the battery assembly is arranged on a shelf.

[0028] It should be noted that the technical effects brought about by any implementation of the second aspect and the fourth aspect can be referred to the technical effects brought about by the corresponding implementation in the first aspect, and will not be repeated here.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1One of the schematic diagrams of the connection structure of the first wall panel and the second wall panel provided in an embodiment of the present application;

[0031] Figure 2 The second schematic diagram of the connection structure of the first wall panel and the second wall panel provided in the embodiment of the present application;

[0032] Figure 3 A schematic structural diagram of a first reinforcement member provided in an embodiment of the present application;

[0033] Figure 4 A cross-sectional view of a first connecting end and a second connecting end provided in an embodiment of the present application;

[0034] Figure 5 The third schematic diagram of the connection structure between the first wall panel and the second wall panel provided in the embodiment of the present application;

[0035] Figure 6 One of the structural schematic diagrams of the first wall panel provided in an embodiment of the present application;

[0036] Figure 7 The second structural diagram of the first wall panel provided in the embodiment of the present application;

[0037] Figure 8 One of the structural schematic diagrams of the second wall panel provided in an embodiment of the present application;

[0038] Figure 9 The second structural diagram of the second wall panel provided in the embodiment of the present application;

[0039] Figure 10 This is a fourth schematic diagram of the connection structure of the first wall panel and the second wall panel provided in an embodiment of the present application;

[0040] Figure 11 This is a fifth schematic diagram of the connection structure of the first wall panel and the second wall panel provided in an embodiment of the present application;

[0041] Figure 12 A schematic structural diagram of a second reinforcement member provided in an embodiment of the present application;

[0042] Figure 13 A schematic diagram of the installation of the fixing member and the locking member provided in the embodiment of the present application;

[0043] Figure 14 A cross-sectional view of a wall structure provided in an embodiment of the present application;

[0044] Figure 15 One of the structural schematic diagrams of the protection plate provided in the embodiment of the present application;

[0045] Figure 16 This is the second structural schematic diagram of the protection plate provided in the embodiment of the present application.

[0046] Reference numerals:

[0047] 100-first wall panel; 101-first connecting end; 1011-recessed portion; 1011a-first notch; 1011b-open end; 1011c-first bottom end; 200-second wall panel; 201-second connecting end; 2011-raised portion; 2011a-second notch; 2011b-top; 2011c-second bottom end; 300-first reinforcement; 400-second reinforcement; 401-first plate portion; 402-second plate portion; 403-connecting member; 500-protective plate; 501-first protective portion; 502-second protective portion; 503-third protective portion; 600-third reinforcement; 700-shelf; 800-fixing member; 801-locking member. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0052] The descriptions of "perpendicular," "parallel," or "same direction" in this application are not absolute limiting conditions, but rather indicate that a vertical or parallel structural arrangement can be achieved within a preset error range and achieve the corresponding preset effect. For example, "perpendicular" includes both absolute vertical and approximately vertical, where the acceptable deviation range for approximately vertical can be, for example, within 5°. "Parallel" includes both absolute parallel and approximately parallel, where the acceptable deviation range for approximately parallel can be, for example, within 5°. "Same direction" includes both absolute and approximately same direction, where the acceptable deviation range for approximately same direction can be, for example, within 5°.

[0053] In the embodiments of this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] In order to achieve effective protection for energy storage products with a higher protection level, the present application provides an energy storage device, which includes a box body, the box body forms a accommodating cavity, and the accommodating cavity is used to place the energy storage product.

[0055] Exemplarily, the energy storage product is a battery assembly, such as a lithium-ion battery assembly, a lithium-ion battery assembly, or a supercapacitor, which is not limited in this application.

[0056] It should be noted that the battery assembly in this application includes one battery or multiple batteries, and this application does not limit this.

[0057] In some embodiments, the box in the present application includes a plurality of interconnected wall structures.

[0058] It is understandable that the energy storage device is formed by splicing the wall structure, and the wall structure can be a prefabricated component. The wall structure can be flexibly set to adapt to the different size requirements of the energy storage device, and can effectively utilize materials, reduce waste, and achieve better resource allocation and conservation.

[0059] In some embodiments, a wall structure is provided in the present application. It should be noted that at least one of the multiple wall structures included in the box of the present application is this wall structure.

[0060] See also Figure 1The wall structure in the present application includes a first wall panel 100 and a second wall panel 200. The first wall panel 100 includes a first connecting end 101, and the first connecting end 101 is provided with a first notch 1011a. The second wall panel 200 includes a second connecting end 201, and the second connecting end 201 is connected to the first connecting end 101. The second connecting end 201 is provided with a second notch 2011a. The first notch 1011a and the second notch 2011a are opposite to each other and connected to form an accommodating space.

[0061] Exemplarily, the first wall panel 100 and the second wall panel 200 are arranged side by side.

[0062] As another example, see Figure 2 , the first wall panel 100 and the second wall panel 200 are arranged at a certain angle, Figure 2 The vertical arrangement of the first wall panel 100 and the second wall panel 200 is used as an example for illustration.

[0063] The arrangement positions of the first wall panel 100 and the second wall panel 200 in the present application are not limited thereto.

[0064] Further, see Figure 3 and combined Figure 1 , the present application also includes a first reinforcement member 300, which is disposed in the accommodating space.

[0065] It is understood that a seam exists at the joint between the first and second connecting ends. This seam may contain material discontinuities, resulting in reduced strength across the seam. Furthermore, the joint between the first and second connecting ends may deform relative to each other when subjected to force, which may cause additional stress in the first and second wall panels 100, 200, further reducing the strength of the wall structure.

[0066] The present application arranges the first reinforcement member 300 in the accommodating space formed by the first notch 1011a and the second notch 2011a, that is, the first reinforcement member 300 is added at the splicing position of the first connection end and the second connection end, which can significantly improve the bearing capacity of the splicing position of the first connection end and the second connection end, making it more consistent with the strength of the first wall and the second wall.

[0067] The first reinforcement 300 not only enhances the local strength of the joint between the first connection end and the second connection end, but also helps to improve the rigidity of the overall wall structure and enhance the anti-deformation capability.

[0068] Furthermore, in order to improve the connection strength between the first reinforcement member 300 and the accommodating space, the first reinforcement member 300 is interference-fitted with the accommodating space, while also improving the sealing performance of the entire wall structure.

[0069] For example, after the first wall panel 100 and the second wall panel 200 are spliced together, a compressor can be used to press the first reinforcement 300 into the accommodating space, so that there is a strong expansion force between the first reinforcement 300 and the accommodating space, so that the unsealing of the splicing position of the first connection end 101 and the second connection end 201 is infinitely reduced, thereby improving the integrity of the entire wall structure, and effectively solving the problem of no fire protection or insufficient fire protection at the splicing points of traditional wall panels, thereby optimizing the fire protection and thermal insulation performance of the spliced wall panels.

[0070] It should be noted that the shape of the first reinforcement member 300 and the accommodating space may be the same or different, and this application does not impose any limitation on this.

[0071] For ease of explanation, see, for example, Figure 3 and combined Figure 1 , the first reinforcement member 300 is rectangular, and the accommodating space is rectangular.

[0072] In some embodiments, the materials of the first wall panel 100 , the second wall panel 200 , and the first reinforcement member 300 all include silicate.

[0073] It is understood that the first wall panel 100, the second wall panel 200, and the first reinforcement 300 are made of silicate boards. Silicate boards have excellent high-temperature resistance, maintaining structural stability under high-temperature conditions and resisting combustion. Their primary components are silica sand and hydrated calcium silicate, and they undergo a high-temperature steam curing process to effectively resist flames.

[0074] At the same time, silicate boards have good thermal insulation properties and can effectively prevent heat transfer. This allows them to prevent fire from spreading through walls, ceilings and other structures during fire prevention.

[0075] In this way, the wall structure formed by the first wall panel 100, the second wall panel 200 and the first reinforcement 300 has good fire resistance and can meet the fire protection requirements of the energy storage device.

[0076] At the same time, the first reinforcement member 300 in the present application can prevent the flame from seeping out from the joint between the first wall panel 100 and the second wall panel 200, so that the joint between the first wall panel 100 and the second wall panel 200 also has fire resistance.

[0077] It should be noted that the thickness of the first wall panel 100, the second wall panel 200, and the first reinforcement member 300 can be set according to different fire protection requirements, and this application does not limit this. Among them, at a high temperature of above 1000°C, a silicate board with a thickness of 20mm can provide 1 hour of fire resistance.

[0078] In order to meet the fire resistance requirement of each cabin class for 2 hours while the average temperature rise does not exceed 100°C, for example, the thickness of the first wall panel 100 in this application is 45 mm, and the thickness of the second wall panel 200 is 45 mm.

[0079] The cross-sectional dimensions of the first reinforcement 300 in one direction are: the width of the first reinforcement 300 is greater than or equal to 9.5 mm and less than or equal to 10.5 mm; the length of the first reinforcement 300 is greater than or equal to 99.5 mm and less than or equal to 100.5 mm.

[0080] It is understandable that the width actually refers to the thickness of the first reinforcement member. In some embodiments, the end surface of the first connection end 101 is in contact with the end surface of the second connection end 201 .

[0081] In other embodiments, see Figure 4 The first connection end portion 101 is provided with a recessed portion 1011 , and the first notch 1011 a extends from the bottom surface of the recessed portion 1011 in a direction away from the second connection end portion 201 .

[0082] The second connection end portion 201 is provided with a protrusion 2011 . The protrusion 2011 is received in the recess 1011 . The second notch 2011 a extends from the top surface of the protrusion 2011 in a direction away from the first connection end portion 101 .

[0083] In this way, through the cooperation between the raised portion 2011 and the recessed portion 1011, the gap at the joint of the first wall and the second wall can be further effectively reduced, thereby reducing heat conduction and cooling loss, and improving the overall energy efficiency and thermal insulation performance of the wall structure.

[0084] At the same time, the raised portion 2011 and the recessed portion 1011 can provide a larger contact area for the first connection end and the second connection end, thereby enhancing the connection strength at the joint of the first connection end and the second connection end and reducing the risk of loosening and tearing of the wall structure.

[0085] At the same time, it is easier to align the panels when splicing the first wall panel 100 and the second wall panel 200, ensuring that the first wall panel 100 and the second wall panel 200 maintain the correct position during installation, further reducing the difficulty of aligning the opening of the first notch 1011a and the opening of the second notch 2011a, and improving the accuracy and efficiency of construction.

[0086] In some embodiments, the first wall panel 100 includes a first connecting portion and a second connecting portion that are oppositely disposed, and the second wall panel 200 includes a first connecting portion and a second connecting portion that are oppositely disposed.

[0087] In other embodiments, the first wall panel 100 includes at least two first connection portions that are oppositely disposed, and the second wall panel 200 includes at least two second connection portions that are oppositely disposed.

[0088] See also Figure 5 and combined Figure 6 The first wall panel 100 and the second wall panel 200 are spliced in sequence to form the wall structure in the present application. For example, the first wall panel 100 in the present application includes a first connecting portion and a second connecting portion that are relatively arranged, and the second wall panel 200 includes a first connecting portion and a second connecting portion that are relatively arranged.

[0089] In some embodiments, see Figure 7 and combined Figure 4 The recessed portion 1011 includes an open end 1011b and a first bottom end 1011c. The first bottom end 1011c is located on a side of the open end 1011b close to the first notch 1011a. The width of the open end 1011b is smaller than the width of the first bottom end 1011c.

[0090] See also Figure 8 、 Figure 9 and combined Figure 4 The raised portion 2011 includes a top end 2011b and a second bottom end 2011c. The second bottom end 2011c is located on a side of the top end 2011b close to the first notch 1011a. The top end 2011b is accommodated in the recessed portion 1011.

[0091] Furthermore, in order to confine the top end 2011b within the recessed portion 1011, the width of the top end 2011b is greater than the width of the opening end 1011b. In this way, the opening section can effectively limit the top end 2011b in the length direction of the first connecting end.

[0092] Furthermore, in order to ensure the sealing of the connection between the first connecting end and the second connecting section, the top 2011b of the protrusion 2011 is fitted with the first bottom end 1011c of the recessed portion 1011, the wall of the recessed portion 1011 is fitted with the wall of the protrusion 2011, and the wall of the open end 1011b of the recessed portion 1011 is abutted with the second bottom end 2011c of the protrusion 2011.

[0093] Therefore, the present application can achieve a fastened connection between the recessed portion 1011 and the raised portion 2011 .

[0094] As another example, the recessed portion 1011 and the raised portion 2011 may be a matching structure in an arc shape or a stepped shape, etc., which is not limited in the present application.

[0095] In some embodiments, see Figure 10 and combined Figure 11Along the length direction of the first connecting end, the first wall panel 100 includes a first edge, and the recessed portion 1011 extends through and passes through the first edge.

[0096] It is understandable that the protrusion 2011 can slide into the recessed portion 1011 through the first edge, so as to facilitate the splicing of the first connection end and the second connection end.

[0097] In some embodiments, see Figure 12 The wall structure in the present application further includes a second reinforcement member 400 , which is located on one side of the connection portion between the first connection end portion 101 and the second connection end portion 201 .

[0098] The second reinforcement member 400 includes a first reinforcement portion and a second reinforcement portion connected to each other, the orthographic projection of the first reinforcement portion on the first wall panel 100 is located at the first connection end 101, and the first reinforcement portion is fixedly connected to the first connection end 101; the orthographic projection of the second reinforcement portion on the second wall panel 200 is located at the second connection end 201, and the second reinforcement portion is fixedly connected to the second connection end 201.

[0099] Among them, the orthographic projection is obtained by "projecting" the points of a three-dimensional object onto a plane in a direction perpendicular to the projection plane.

[0100] The first wall panel 100 is regarded as a plane, and the orthographic projection of the first reinforcement portion on the first wall panel 100 refers to a two-dimensional shape or outline of the first reinforcement portion projected on the plane.

[0101] The second wall panel 200 is regarded as a plane, and the orthographic projection of the second reinforcement portion on the second wall panel 200 refers to a two-dimensional shape or outline of the second reinforcement portion projected on the plane.

[0102] In this way, the first reinforcement portion and the second reinforcement portion can cover the joint between the first connection end portion 101 and the second connection end portion 201 , further enhancing the connection strength at that joint.

[0103] Furthermore, the second reinforcement member 400 can be used to carry components, so that other parts can be installed on the wall structure, thereby fully utilizing the space in the energy storage device.

[0104] In some embodiments, see Figure 4 The second reinforcement member 400 includes a first plate portion 401, a second plate portion 402, and a connecting member 403. The first plate portion 401 is located on one side of the connection portion between the first connecting end portion 101 and the second connecting end portion 201, and the first reinforcement portion and the second reinforcement portion are located on the first plate portion 401. The second plate portion 402 is located on the side of the first plate portion 401 facing away from the connection portion, and the connecting member 403 is connected between the first plate portion 401 and the second plate portion 402.

[0105] Along the first direction, the width of the first plate portion 401 is greater than the width of the connecting member 403 , and the width of the second plate portion 402 is greater than the width of the connecting member 403 . The first direction is perpendicular to the length direction of the first connecting end portion 101 .

[0106] It can be understood that an installation space can be formed between the second plate portion 402 and the connecting portion to facilitate installation by the user.

[0107] In some embodiments, see Figure 13 The box in the present application further includes at least one shelf 700 , which is connected to the second plate portion 402 , and the shelf 700 is disposed on a side of the second plate portion 402 facing away from the connecting member 403 .

[0108] In this way, the shelf 700 can provide a placement location for equipment in the energy storage device.

[0109] For example, the battery assembly is installed on the shelf 700, thereby making full use of the vertical space, increasing the storage capacity, and allowing more goods to be stored in a limited area.

[0110] At the same time, the battery components are placed in an orderly manner on the shelf 700, which reduces the risk of mutual collision and crushing, and can effectively protect the safety of the battery components.

[0111] Further, see Figure 13 The present application also includes at least one fixing member 800 and a locking member 801. The shelf 700 is connected to the second plate portion 402 through the fixing member 800. The fixing member 800 passes through the second plate portion 402. The locking member 801 is arranged in the installation space, and the locking member 801 is connected with the fixing member 800.

[0112] Illustratively, the fixing member 800 includes a bolt, and the locking member 801 includes a nut.

[0113] like Figure 12 As shown, the nut is arranged in the installation space formed between the second plate portion 402 and the connecting portion. The installer can screw the nut through the installation space formed here, which is convenient for the installer to operate.

[0114] In some embodiments, see Figure 13 , the fixing member 800 is located in the middle of the first plate portion 401 .

[0115] In this way, the second plate portion 402 and the connecting portion can form an installation space on both sides, providing installation space for the installer to fix the fixing member 800 and the locking member 801.

[0116] In some embodiments, see Figure 4The wall structure in the present application further includes a third reinforcement member 600 , which is located on the side of the connection portion away from the second reinforcement member 400 .

[0117] The third reinforcement member 600 includes a third reinforcement portion and a fourth reinforcement portion that are connected. The orthographic projection of the third reinforcement portion on the first wall panel 100 is located at the first connection end 101, and the third reinforcement portion is fixedly connected to the first connection end 101; the orthographic projection of the fourth reinforcement portion on the second wall panel 200 is located at the second connection end 201, and the fourth reinforcement portion is fixedly connected to the second connection end 201.

[0118] It can be understood that by adding the third reinforcement member 600 , protection can be provided on both sides of the connection position between the first connection end and the second connection section, further enhancing the stability of the wall structure.

[0119] Furthermore, the structure of the third reinforcement 600 and the connection method with other components are consistent with those of the second reinforcement 400 .

[0120] In some embodiments, see Figure 15 , the wall structure in this application also includes a protective plate 500.

[0121] See also Figure 15 and combined Figure 14 and Figure 16 The protective plate 500 is arranged on one side of the first wall panel 100 close to the second reinforcement 400. The protective plate 500 includes a first protective part 501, a second protective part 502 and a third protective part 503 connected in sequence. The first protective part 501 is connected to the first wall panel 100, the second protective part 502 is connected to at least one of the connecting plate and the first plate part 401, and part of the third protective part 503 is connected to the second plate part 402.

[0122] It can be understood that the protection plate 500 can not only protect the first wall panel 100 , but also protect the first reinforcement 300 and the second reinforcement 400 , thereby further improving the reliability of the wall structure.

[0123] That is, the protection plate 500 can be embedded in the recess formed by the second reinforcement member 400 , further improving the compactness between the protection plate 500 and the wall.

[0124] Exemplarily, the second reinforcement member 400 is bonded to the first wall panel 100 .

[0125] In another exemplary embodiment, the protection plate 500 is bonded to the first wall panel 100 and the second reinforcement member 400 .

[0126] In this way, the first wall panel 100 and the second wall panel 200 can be completely wrapped in the area of the protective plate 500 and the second reinforcement 400, avoiding exposed gaps at the joints of the first wall panel 100 and the second wall panel 200, which would cause the system to fail the pressure resistance test.

[0127] In some embodiments, the material of the protection plate 500 , the second reinforcement 400 , and the third reinforcement 600 includes unsaturated polyester glass fiber.

[0128] On the one hand, unsaturated polyester glass fiber has high tensile strength, compressive strength and impact resistance, which can effectively improve the stability of the wall structure.

[0129] On the other hand, unsaturated polyester glass fiber has excellent electrical insulation properties, which can make the entire wall structure have good insulation properties.

[0130] On this basis, the wall structure in this application not only meets high fire resistance requirements but also has high insulation properties.

[0131] It should be noted that the dimensions of the protection plate 500 , the second reinforcement 400 and the third reinforcement 600 are not limited in this application and can be designed according to different requirements of the energy storage device.

[0132] Among them, 1mm thick unsaturated polyester glass fiber board can withstand a voltage of 12KV.

[0133] For example, in order to meet the requirement of withstand voltage of 50KV, the thickness of the protection plate 500, the second reinforcement member 400 and the third reinforcement member 600 in the present application are all 5mm.

[0134] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0135] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

[0136] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A wall structure, characterized in that: include: A first wall panel (100), the first wall panel (100) comprising a first connecting end portion (101), the first connecting end portion (101) being provided with a first notch (1011a); A second wall panel (200), the second wall panel (200) comprising a second connecting end portion (201), the second connecting end portion (201) being connected to the first connecting end portion (101), the second connecting end portion (201) being provided with a second notch (2011a), the first notch (1011a) and the second notch (2011a) being opposite to and connected to form an accommodating space; A first reinforcement member (300), wherein the first reinforcement member (300) is arranged in the accommodating space.

2. The wall structure according to claim 1, characterized in that: The first connecting end portion (101) is provided with a recessed portion (1011), and the first notch (1011a) extends from the bottom surface of the recessed portion (1011) in a direction away from the second connecting end portion (201); The second connecting end portion (201) is provided with a protrusion (2011), the protrusion (2011) is accommodated in the recess (1011), and the second notch (2011a) extends from the top surface of the protrusion (2011) in a direction away from the first connecting end portion (101).

3. The wall structure according to claim 2, characterized in that: The recessed portion (1011) comprises an open end (1011b) and a first bottom end (1011c), wherein the first bottom end (1011c) is located on a side of the open end (1011b) close to the first notch (1011a), and a width of the open end (1011b) is smaller than a width of the first bottom end (1011c); The raised portion (2011) comprises a top end (2011b) and a second bottom end (2011c), wherein the second bottom end (2011c) is located on a side of the top end (2011b) close to the first notch (1011a), and the top end (2011b) is accommodated in the recessed portion (1011); Wherein, the width of the top end (2011b) is greater than the width of the opening end (1011b).

4. The wall structure according to claim 2, characterized in that: Along the length direction of the first connecting end, the first wall panel (100) comprises a first edge, and the recessed portion (1011) extends through and passes through the first edge.

5. The wall structure according to any one of claims 1 to 4, characterized in that: At least one of the materials of the first wall panel (100), the second wall panel (200), and the first reinforcement member (300) includes silicate.

6. The wall structure according to claim 1, characterized in that: Also includes: a second reinforcement member (400), the second reinforcement member (400) being located on one side of a connection portion between the first connection end portion (101) and the second connection end portion (201); The second reinforcement member (400) includes a first reinforcement portion and a second reinforcement portion connected to each other, wherein an orthographic projection of the first reinforcement portion on the first wall panel (100) is at least partially located at the first connection end portion (101), and the first reinforcement portion is fixedly connected to the first connection end portion (101); and an orthographic projection of the second reinforcement portion on the second wall panel (200) is at least partially located at the second connection end portion (201), and the second reinforcement portion is fixedly connected to the second connection end portion (201).

7. The wall structure according to claim 6, characterized in that: The second reinforcement member (400) comprises: a first plate portion (401), the first plate portion (401) being located on one side of a connection portion between the first connecting end portion (101) and the second connecting end portion (201), and the first reinforcement portion and the second reinforcement portion being located on the first plate portion (401); a second plate portion (402), the second plate portion (402) being located on a side of the first plate portion (401) facing away from the connection portion; A connecting member (403) is connected between the first plate portion (401) and the second plate portion (402), and along a first direction, the width of the first plate portion (401) is greater than the width of the connecting member (403).

8. The wall structure according to claim 7, characterized in that: The first direction is perpendicular to the length direction of the first connecting end portion (101).

9. The wall structure according to claim 7, characterized in that: The connecting member (403) is connected to the middle portion of the first plate portion (401) along the first direction.

10. The wall structure according to claim 7, characterized in that: Also includes: A protective plate (500) is provided on a side of the first wall panel (100) close to the second reinforcement member (400), and the protective plate (500) includes a first protective portion (501), a second protective portion (502), and a third protective portion (503) connected in sequence, wherein the first protective portion (501) is connected to the first wall panel (100), the second protective portion (502) is connected to at least one of the connecting plate and the first panel portion (401), and a portion of the third protective portion (503) is connected to the second panel portion (402).

11. The wall structure according to claim 10, characterized in that: At least one of the materials of the protection plate (500) and the second reinforcement (400) includes unsaturated polyester glass fiber.

12. The wall structure according to any one of claims 6 to 11, characterized in that: Also includes: a third reinforcing member (600), the third reinforcing member (600) being located on a side of the connecting portion facing away from the second reinforcing member (400); The third reinforcement member (600) includes a third reinforcement portion and a fourth reinforcement portion that are connected, wherein the orthographic projection of the third reinforcement portion on the first wall panel (100) is at least partially located at the first connection end portion (101), and the third reinforcement portion is fixedly connected to the first connection end portion (101); and the orthographic projection of the fourth reinforcement portion on the second wall panel (200) is at least partially located at the second connection end portion (201), and the fourth reinforcement portion is fixedly connected to the second connection end portion (201).

13. A box, characterized in that: include: A plurality of interconnected wall structures, at least one of which is the wall structure according to any one of claims 1 to 12.

14. A box, characterized in that: include: a plurality of interconnected wall structures, at least one of the wall structures being the wall structure according to any one of claims 7 to 12; At least one shelf (700), the shelf (700) is connected to the second plate portion (402), and the shelf (700) is arranged on a side of the second plate portion (402) facing away from the connecting member (403).

15. An energy storage device, characterized in that: include: At least one box according to claim 13 or 14, wherein the box forms a receiving cavity; A battery assembly is arranged in the accommodating cavity.

16. An energy storage device, characterized in that: include: At least one box according to claim 14, wherein the box forms a receiving cavity; A battery assembly is provided in the accommodating cavity, and the battery assembly is provided on the shelf (700).

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