Energy storage device, energy storage system, power utilization device and charging network

Abstract

The utility model relates to energy storage equipment technology and discloses an energy storage device, an energy storage system, a power utilization device and a charging network, the energy storage device comprises a cabinet body, a mounting rack, a battery device and a mounting structure, the mounting structure comprises a first supporting rail, a second supporting rail and a first fastener, a first mounting hole is formed in the first supporting rail, and a second mounting hole is formed in the second supporting rail; a sliding groove is defined by the side, away from the first supporting rail, of the second supporting rail, an avoiding through hole is formed in the groove wall of the sliding groove, matching cavities are further defined by the second supporting rail, the matching cavities are formed in the side, facing the first mounting hole, of the sliding groove at intervals, and a second mounting hole is formed in the first cavity wall, facing the first mounting hole, of each matching cavity. The second supporting rail is an insulating material piece, the first fastening piece fixes the first supporting rail and the second supporting rail, the end of the first fastening piece is located in the matching cavity, and the first fastening piece and the avoiding through hole are arranged in the axial direction of the first mounting hole in a spaced mode. Therefore, the electric isolation between the battery device and the mounting rack can be realized conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage device technology especially to an energy storage device, an energy storage system, an electric device and a charging network. BACKGROUND

[0002] The energy storage device is a device for storing and releasing electric energy, which can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems or temporary power supply systems, etc. The electric energy can be stored as needed and output at appropriate times. However, in the related art, during use of the energy storage device, if insulation failure occurs in the battery device inside the energy storage device, current leakage to the mounting rack of the battery device can occur. Therefore, the mounting structure of the energy storage device needs to be improved. SUMMARY

[0003] The energy storage device, the energy storage system, the electric device and the charging network are provided, the second support rail is provided as an insulating material piece, the second support rail defines a sliding groove, and the end of the first fastener is located in a matching cavity spaced apart from the sliding groove, so that the first fastener is not easy to contact the structure matched in the sliding groove, and electrical isolation between the battery device and the mounting rack is facilitated.

[0004] In a first aspect, an energy storage device is provided, which includes a cabinet, a mounting rack, a battery device and a mounting structure. The cabinet has a mounting cavity, the mounting rack and the battery device are both arranged in the mounting cavity, and the battery device is mounted on the mounting rack through the mounting structure. The mounting structure includes a first support rail, a second support rail and a first fastener. The first support rail is mounted on one of the mounting rack and the battery device. The first support rail has a first mounting hole formed thereon. The second support rail has a sliding groove defined on a side thereof away from the first support rail. An avoiding through hole is formed on a groove wall of the sliding groove. The second support rail further defines a matching cavity. The matching cavity is spaced apart from a side of the sliding groove facing the first mounting hole. A second mounting hole is formed on a first cavity wall of the matching cavity facing the first mounting hole. The second support rail is made of an insulating material. The other one of the mounting rack and the battery device is matched in the sliding groove. The avoiding through hole is opposite to the second mounting hole, so that the first fastener is adapted to pass through the avoiding through hole to be arranged in the first mounting hole and the second mounting hole, and to fix the first support rail and the second support rail. The end of the first fastener is located in the matching cavity, and the first fastener and the avoiding through hole are spaced apart in the axial direction of the first mounting hole.

[0005] In the technical solution, the second support rail is made of insulating material, and a sliding groove is defined on the side of the second support rail away from the first support rail. The first support rail is provided with a first mounting hole, the sliding groove is provided with an avoiding through hole, the matching cavity is provided with a second mounting hole, and the first fastener is adapted to pass through the avoiding through hole and be arranged in the first mounting hole and the second mounting hole. The avoiding through hole facilitates the installation of the first fastener. The matching cavity is arranged in a spaced manner with the sliding groove. The end of the first fastener is located in the matching cavity, and the first fastener and the avoiding through hole are arranged in a spaced manner in the axial direction of the first mounting hole. Therefore, the first fastener is spaced from the structure matched in the sliding groove, so that the first fastener does not electrically conduct between the first support rail and the structure matched in the sliding groove, and the electrical isolation between the battery device and the mounting rack is facilitated.

[0006] In some embodiments, the avoiding through hole, the first mounting hole and the second mounting hole are respectively a plurality of avoiding through holes, a plurality of first mounting holes and a plurality of second mounting holes. The plurality of second mounting holes are arranged in a spaced manner along the length direction of the second support rail. Each first mounting hole corresponds to one avoiding through hole and one second mounting hole. In the technical solution, the avoiding through hole, the first mounting hole and the second mounting hole are respectively a plurality of avoiding through holes, a plurality of first mounting holes and a plurality of second mounting holes. This facilitates the improvement of the matching strength of the first support rail and the second support rail.

[0007] In some embodiments, one of the first support rail and the second support rail is provided with a first stopper at one end of the length direction. The other of the first support rail and the second support rail abuts against the first stopper in the length direction, so as to limit the relative movement of the first support rail and the second support rail in the length direction. In addition, the first stopper blocks the open end of the matching cavity corresponding to the first end of the second support rail in the length direction. In the technical solution, the first stopper limits the relative movement of the first support rail and the second support rail in the length direction, which facilitates the installation of the first support rail and the second support rail. In addition, the first stopper blocks the open end of the matching cavity corresponding to the first end of the second support rail, which reduces the risk of foreign matter entering the matching cavity and damaging the insulation performance of the sliding groove.

[0008] In some embodiments, the first support rail comprises a first plate body and a second plate body. At least one end of the width of the first plate body is connected to the second plate body by bending, so as to define a first mounting groove. The first mounting hole is formed on the first plate body. The second support rail comprises a third plate body, a fourth plate body and a separation piece. At least one end of the width of the third plate body is connected to the fourth plate body by bending, so as to define a second mounting groove. The separation piece is arranged in the second mounting groove and separates the second mounting groove into the sliding groove and the matching cavity. The second mounting hole is formed on the third plate body. The avoiding through hole is formed on the separation piece. The fourth plate body is fixedly connected to the second plate body.

[0009] In the technical scheme, at least one end of the width of the first plate body is bent to connect the second plate body, so as to enhance the structural strength of the first support rail, and the first plate body and the second plate body can define the first mounting groove, thus it is not necessary to separately process the first mounting groove, and the processing difficulty of the first support rail is reduced; the third plate body and the fourth plate body can define the second mounting groove, thus the processing of the second support rail is also reduced, and at least one end of the width of the third plate body is bent to connect the fourth plate body, the partition is arranged in the second mounting groove, and through the cooperation of the third plate body, the fourth plate body and the partition, the structural strength of the second support rail is enhanced; the first mounting hole is formed on the first plate body, and the second mounting hole is formed on the third plate body, so that the first fastener can fix the first plate body and the third plate body, and the cooperation strength of the first support rail and the second support rail is enhanced.

[0010] In some embodiments, the second plate body and the fourth plate body are two respectively, the partition connects the two fourth plate bodies, the mounting structure further comprises at least one of a first pressing piece, a second stop piece and a third stop piece, and at least one of the first pressing piece, the second stop piece and the third stop piece is an insulating material piece, the first pressing piece is arranged in the second mounting groove and on one of the fourth plate bodies, the first pressing piece is arranged apart from the other fourth plate body, and is adapted to apply an extrusion force to the guide rail matched with the sliding groove towards the other fourth plate body; the second stop piece is arranged in the second mounting groove and at a first end of the other fourth plate body in the length direction, and is adapted to stop the guide rail matched with the sliding groove to limit the movement of the guide rail in the length direction; the third stop piece is arranged in the second mounting groove and at a second end of the fourth plate body in the length direction, and at least one of the first support rail and the second support rail is detachably connected with the third stop piece, and the third stop piece is adapted to stop the guide rail matched with the sliding groove to limit the movement of the guide rail in the length direction.

[0011] In the technical scheme, the second plate body and the fourth plate body are two respectively, so as to enhance the cooperation strength of the first support rail and the second support rail; the partition connects the two fourth plate bodies, so as to enhance the structural strength of the second support rail; the first pressing piece, the second stop piece and the third stop piece are insulating material pieces, so that the first pressing piece, the second stop piece and the third stop piece do not affect the insulation performance of the sliding groove, and the sliding groove has good insulation effect; the first pressing piece applies an extrusion force to the guide rail matched with the sliding groove towards the other fourth plate body, so as to enhance the stability of the cooperation of the guide rail and the sliding groove; the second stop piece is adapted to stop the guide rail matched with the sliding groove to limit the movement of the guide rail in the length direction, so as to facilitate the installation of the guide rail; the third stop piece is adapted to stop the guide rail matched with the sliding groove to limit the movement of the guide rail in the length direction, so that the movement of the guide rail in the length direction in the sliding groove is completely limited by the second stop piece and the third stop piece, and the cooperation of the guide rail and the sliding groove is more stable.

[0012] In some embodiments, the first pressing member is fixed to one of the fourth plate bodies by a second fastener, the second fastener is arranged through the second plate body to fix the first pressing member and the second plate body, and the first pressing member covers the second fastener; and / or the mounting structure comprises a second stopper, the second stopper is fixed to the other fourth plate body by a third fastener, the third fastener is arranged through the second plate body to fix the second stopper and the second plate body, and the second stopper covers the third fastener.

[0013] In the above technical solution, the second fastener fixes the first pressing member, the second plate body and the fourth plate body, thereby facilitating reduction in the number of fasteners, facilitating assembly, and preventing the fastener from affecting the insulation performance of the chute because the first pressing member covers the second fastener; and / or the third fastener fixes the second stopper, the fourth plate body and the second plate body, thereby facilitating reduction in the number of fasteners, facilitating assembly, and preventing the fastener from affecting the insulation performance of the chute because the second stopper covers the third fastener.

[0014] In some embodiments, the mounting structure comprises a third stopper, one side of the third stopper is connected with a mounting plate, the mounting plate shields an open end of the fitting cavity corresponding to the second end of the second support rail in the length direction, the end of each second plate body is connected with a first mounting flange, and each first mounting flange is detachably connected with the mounting plate; or the end of one of the second plate bodies is connected with a first mounting flange, the side of the other second plate body away from the first mounting slot is supported with a third support rail, the third support rail is fixed with the first support rail, the end of the third support rail is connected with a second mounting flange, and the first mounting flange and the second mounting flange are respectively detachably connected with the mounting plate.

[0015] In the above technical solution, the mounting plate shields the open end of the fitting cavity corresponding to the second end of the second support rail in the length direction, thereby reducing the possibility of impurities entering the fitting cavity and affecting the sealing performance of the chute; the end of each second plate body is connected with a first mounting flange, and the first mounting flange is detachably connected with the mounting plate, thereby facilitating installation and disassembly of the third stopper; the side of the second plate body away from the first mounting slot is supported with a third support rail, and the third support rail is fixed with the first support rail, thereby facilitating enhancement of the structural strength of the first support rail; the end of the third support rail is connected with a second mounting flange, and the first mounting flange and the second mounting flange are respectively detachably connected with the mounting plate, thereby facilitating disassembly of the third stopper.

[0016] In some embodiments, the mounting structure comprises first pressing members, second stop members and third stop members, the first pressing members are multiple and are arranged at intervals along the length direction, and the intervals between the multiple first pressing members and the other fourth plate body gradually decrease in the direction from the third stop members to the second stop members. In the above technical solution, the intervals between the multiple first pressing members and the other fourth plate body gradually decrease in the direction from the third stop members to the second stop members, so that the extrusion force of the first pressing members on the guide rail matched with the sliding groove gradually increases, and the matching between the guide rail and the sliding groove is more stable and convenient to assemble.

[0017] In some embodiments, the mounting structure comprises first pressing members, the side of the first pressing members facing the other fourth plate body is provided with first buffer members; and / or, the mounting structure comprises second stop members and third stop members, at least one of the second stop members and the third stop members is provided with second buffer members on the side facing the center of the sliding groove.

[0018] In the above technical solution, the side of the first pressing members facing the other fourth plate body is provided with first buffer members, so that the guide rail moves more smoothly in the sliding groove; at least one of the second stop members and the third stop members is provided with second buffer members on the side facing the center of the sliding groove, the second buffer members can reduce the impact of the guide rail on the second stop members and / or the third stop members, and reduce the possibility of deformation of the guide rail, the second stop members and / or the third stop members.

[0019] In some embodiments, the second support rail further comprises a shielding flange, the shielding flange is connected to the end of the fourth plate body away from the third plate body by bending, and covers the end of the corresponding second plate body. In the above technical solution, the shielding flange of the second support rail corresponds to the end of the second plate body, which facilitates reducing the possibility of current leakage through the second plate body.

[0020] In some embodiments, the lower side of the first support rail supports a third support rail, the third support rail is fixed with the first support rail, and the second support rail and the third support rail are located on different sides of the first support rail. In the above technical solution, the third support rail is fixed with the first support rail, which facilitates enhancing the load-bearing capacity of the first support rail, improving the practicability of the mounting structure, and making the setting positions of the second support rail and the third support rail more flexible.

[0021] In some embodiments, the first support rail comprises a first plate body and a second plate body, the lower end of the first plate body is connected to the second plate body by bending, so that the first support rail defines a first mounting slot for accommodating the second support rail, the first mounting hole is formed on the first plate body, the third support rail comprises a fifth plate body and a sixth plate body connected by bending, the fifth plate body is arranged in parallel with the second plate body and is connected to the lower side of the second plate body, the sixth plate body is flush with the first plate body, and the third mounting hole is formed on the sixth plate body. In the above technical solution, the first support rail and the second support rail are fixed by the first fastener, the third support rail is fixed with the first support rail, so that the first support rail, the second support rail and the third support rail are fixed, the third mounting hole is formed on the sixth plate body, and the first support rail, the second support rail and the third support rail can be fixedly connected with the battery device or the mounting rack through the third mounting hole, which facilitates the assembly of the mounting structure.

[0022] In some embodiments, the mounting structure further comprises a shielding piece arranged in the fitting cavity and located between the first fastener and the slot wall of the sliding slot to separate the first fastener and the avoiding through hole, and the shielding piece is made of insulating material. In the above technical solution, the shielding piece is arranged in the fitting cavity and separates the first fastener and the avoiding through hole, and the shielding piece is made of insulating material, which facilitates reducing the possibility of affecting the insulation performance of the sliding slot by the first fastener.

[0023] In some embodiments, the second end of the fitting cavity in the length direction of the first support rail is open to form an opening, and the shielding piece is adapted to be fitted into the fitting cavity through the opening. In the above technical solution, the shielding piece is adapted to be fitted into the fitting cavity through the opening formed by the second end of the first support rail in the length direction, which facilitates the installation of the shielding piece.

[0024] In some embodiments, the fitting cavity has a second cavity wall arranged opposite to the first cavity wall, and the shielding piece comprises a seventh plate body and an eighth plate body, the seventh plate body is abutted against the second cavity wall and located between the first fastener and the avoiding through hole, the width of the seventh plate body is connected to the eighth plate body by bending at both ends, and each eighth plate body extends obliquely to the side of the first mounting hole and abuts against the first cavity wall, and the two eighth plate bodies are away from each other in the direction of the side of the first mounting hole.

[0025] In the above technical solution, the second mounting hole is formed on the first cavity wall, the avoiding through hole is formed on the second cavity wall, the seventh plate body is abutted against the second cavity wall, which effectively separates the first fastener and the avoiding through hole; the eighth plate body extends obliquely to the side of the first mounting hole and abuts against the first cavity wall, and the two eighth plate bodies are away from each other in the direction of the side of the first mounting hole, so that the seventh plate body and the two eighth plate bodies together form a groove with gradually increasing opening, which provides a avoiding space for the installation of the first fastener and reduces the possibility of interference between the shielding piece and the first fastener.

[0026] In some embodiments, the battery device is a plurality, each of which is mounted on the mounting frame by the mounting structure on opposite sides in the horizontal direction, and the opposite sides of the battery device are respectively provided with guide rails, and the first support rail is mounted on the mounting frame and the guide rails are adapted to be slidably fitted in the sliding groove; or the opposite sides of the battery device are respectively provided with mounting structures, and the mounting frame is provided with guide rails, and the guide rails are adapted to be slidably fitted in the sliding groove.

[0027] In the above technical solution, the battery device is mounted on the mounting frame by the mounting structure on opposite sides in the horizontal direction, and the mounting structure has good insulation performance, facilitating electrical isolation of the battery device and the mounting frame, and making the energy storage device more stable in use.

[0028] In some embodiments, the second support rail includes a third plate body and a fourth plate body, the upper and lower ends of the third plate body are respectively connected to the fourth plate body by bending, so as to define a second mounting groove, the mounting structure includes a plurality of first pressing members, the plurality of first pressing members are arranged in the second mounting groove and spaced apart along the length direction, the first pressing members are arranged on the upper fourth plate body and spaced apart from the lower fourth plate body, and the upper surface of the guide rail is provided with a plurality of second pressing members spaced apart along the length direction, each second pressing member is in abutment with a corresponding first pressing member in the up-down direction, the spacing between the plurality of first pressing members and the other fourth plate body decreases in the length direction from the second end of the second support rail to the first end, and the protrusion height of the plurality of second pressing members decreases.

[0029] In the above technical solution, the first pressing members are arranged on the upper fourth plate body and spaced apart from the lower fourth plate body, the upper surface of the guide rail is provided with a plurality of second pressing members spaced apart along the length direction, each second pressing member is in abutment with a corresponding first pressing member in the up-down direction, the spacing between the plurality of first pressing members and the other fourth plate body decreases, and the protrusion height of the plurality of second pressing members decreases, facilitating assembly of the guide rail and the sliding groove, and facilitating enhancement of the stability of the cooperation between the guide rail and the sliding groove, so that the battery device is more stable on the mounting frame.

[0030] In some embodiments, the guide rail is an insulating material piece; or the guide rail includes a metal support piece and a protective piece, the protective piece is an insulating material piece and at least covers the bottom side of the metal support piece. In the above technical solution, the guide rail is an insulating material piece, further reducing the possibility of electrical leakage of the battery device and the mounting frame; or the guide rail includes a metal support piece and a protective piece, the protective piece is an insulating material piece and at least covers the bottom side of the metal support piece, reducing the wear of the bottom of the guide rail and the sliding groove.

[0031] In a second aspect, the embodiments of the present application provide an energy storage system, including a power conversion device and the energy storage device of the first aspect, and the power conversion device is used for electrically connecting the power generation device and the energy storage device.

[0032] In the above technical solution, the power generation device and the energy storage device are electrically connected through a power conversion device to achieve energy exchange between the energy storage device and the power generation device. Furthermore, the energy storage device, through its mounting structure, reduces the possibility of electrical leakage between the battery device and the mounting frame. This facilitates improved stability of the energy storage system during operation.

[0033] Thirdly, embodiments of this application provide an electrical device, including an energy storage device of the first aspect or an energy storage system of the second aspect, wherein the battery device is used to store or provide electrical energy.

[0034] In the above technical solution, the electrical device includes an energy storage device or energy storage system, and the battery device is used to store or provide electrical energy. The energy storage device and energy storage system have good stability. This makes the battery device more stable during use, thus improving the stability of the electrical device during operation.

[0035] Fourthly, embodiments of this application provide a charging network, including a charging pile and an energy storage device (as described in the first aspect) or an energy storage system (as described in the second aspect), wherein the energy storage device is used to provide electrical energy to the charging pile.

[0036] In the above technical solution, the charging network includes an energy storage device or energy storage system. The energy storage device is used to provide power to the charging piles and has good stability. This makes the energy storage device provide power to the charging piles more stably, thus improving the stability of the charging network during operation. Attached Figure Description

[0037] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0038] Figure 1 This is a schematic diagram of the electrical device proposed in an embodiment of the present utility model;

[0039] Figure 2 for Figure 1 A schematic diagram of the battery device shown;

[0040] Figure 3 This is a schematic diagram of the energy storage device proposed in an embodiment of the present utility model;

[0041] Figure 4 for Figure 3 A magnified view of point A, indicated by the center circle;

[0042] Figure 5 for Figure 3 Exploded view of the installation structure shown;

[0043] Figure 6 for Figure 3 The diagram shows the mounting structure and the assembly of the battery device.

[0044] Figure 7 is a schematic view of the mounting structure shown in Figure 3

[0045] Figure 8 is an assembly schematic view of the first support rail and the third support rail shown in Figure 7

[0046] Figure 9 is a schematic view of the second support rail shown in Figure 6

[0047] Figure 10 is another schematic view of the mounting structure shown in Figure 7

[0048] Figure 11 is a schematic view of the battery device and the guide rail assembly proposed in the embodiments of the present application;

[0049] Figure 12 is another schematic view of the energy storage device proposed in the embodiments of the present application;

[0050] Figure 13 is a schematic view of the energy storage system proposed in the embodiments of the present application;

[0051] Figure 14 is a schematic view of the charging network proposed in the embodiments of the present application.

[0052] Reference signs: charging network 5, power utilization device 4, energy storage system 3, energy storage device 2, mounting structure 1,

[0053] ​​​​The first support rail 10, the first mounting hole 12, the first stopper 14, the first plate body 15, the second plate body 16, the first mounting flange 160, the first mounting groove 17, the second support rail 20, the shielding flange 21, the sliding groove 22, the avoiding through hole 220, the matching cavity 24, the first cavity wall 240, the second mounting hole 242, the second cavity wall 244, the third plate body 25, the fourth plate body 26, the first end 260, the second end 262, the open end 2622, the partition 27, the second mounting groove 28, the first pressing part 29, the first buffer 290, the first fastener 30, the end 300, the second fastener 32, the third fastener 34, the second stopper 40, the third stopper 42, the mounting plate 420, the second buffer 46, the shielding part 48, the seventh plate body 480, the eighth plate body 482, the third support rail 50, the second mounting flange 52, the fifth plate body 54, the sixth plate body 56, the third mounting hole 57, the cabinet body 60, the mounting cavity 62, the mounting frame 64, the battery device 66, the guide rail 68, the second pressing part 680, the metal support part 682, the protection part 684, the power conversion device 70, the power generation device 72, the connector 73, the charging pile 74, the controller 75, the motor 76, the box body 77, the first box body 770, the second box body 772, the battery cell 78. DETAILED DESCRIPTION

[0054] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0055] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0056] In the present application, the phrase "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0057] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connected", "connection", "attached" should be understood broadly, for example, can be directly connected, or indirectly connected through an intermediate medium. 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.

[0058] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0059] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the size of various components in the embodiments of the present application shown in the drawings is only exemplary and should not constitute any limitation on the present application. "Multiple" appearing in the present application means two or more (including two).

[0060] The battery device mentioned in the embodiments of the present application refers to a single physical module including one or more battery monomers to provide higher voltage and capacity. The multiple battery monomers of the battery device can be connected in series, parallel or mixed connection through bus components. For example, the battery device mentioned in the present application can be a battery module or a battery pack, etc. The battery module is formed by arranging and fixing multiple battery monomers into a single independent module. As an example, the battery module can be formed by bundling multiple battery monomers with a cable tie. The battery pack generally includes a box for packaging one or more battery monomers or one or more battery modules. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery monomer. Of course, the battery device can also not include a box.

[0061] As an example, the battery device is accommodated in the box by the way of fixing the battery module in the box. As an example, the battery device can also be accommodated in the box by the way of directly fixing multiple battery monomers in the box.

[0062] As an example, the box can include a first box and a second box. The first box and the second box are buckled so that a closed space is formed inside the box to accommodate the battery monomer assembly. Here, closed means covered or closed, which can be sealed or unsealed. The first box can be a top cover or a bottom plate. As an example, the box can include a top cover, a frame and a bottom plate. The top cover and the bottom plate are connected with the frame respectively, so that a closed space is formed inside the box to accommodate the battery monomer.

[0063] In the present application, the battery cell can include a secondary battery, a primary battery, etc., the secondary battery refers to a battery cell that can be activated by charging after discharging; the battery cell can be a lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a sodium lithium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, a sodium ion battery, or a magnesium ion battery, etc., which is not limited by the embodiments of the present application. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc., which is also not limited by the embodiments of the present application. The battery cell is generally divided into three types according to the packaging method: cylindrical battery cell, square battery cell, and soft package battery cell, which is also not limited by the embodiments of the present application.

[0064] Exemplarily, the battery cell can generally include a shell, an electrode assembly, and an electrolyte, the shell is used to accommodate the electrode assembly and the electrolyte, and the shell is provided with at least one positive pole and at least one negative pole. The electrode assembly includes one or more electrode assemblies, and the electrode assembly is formed by stacking or winding the positive pole sheet, the negative pole sheet, and the separator film.

[0065] The positive pole sheet generally includes a positive current collector and a positive active material layer, the positive active material layer is directly or indirectly coated on the positive current collector, the positive current collector without the positive active material layer protrudes from the positive current collector with the positive active material layer, the positive current collector without the positive active material layer serves as a positive tab sheet, and a plurality of positive tab sheets are stacked together and electrically connected to the positive pole. Exemplarily, the plurality of positive tab sheets stacked together can be directly welded to the positive pole to form an electrical connection; or the electrode assembly can further include a positive adapter sheet, the plurality of positive tab sheets stacked together are welded to one end of the positive adapter sheet, and the other end of the positive adapter sheet is welded to the positive pole, so that the positive tab sheet is electrically connected to the positive pole.

[0066] The negative pole sheet generally includes a negative current collector and a negative active material layer, the negative active material layer is directly or indirectly coated on the negative current collector, the negative current collector without the negative active material layer protrudes from the negative current collector with the negative active material layer, the negative current collector without the negative active material layer serves as a negative tab sheet, and a plurality of negative tab sheets are stacked together and electrically connected to the negative pole. Exemplarily, the plurality of negative tab sheets stacked together can be directly welded to the negative pole to form an electrical connection; or the electrode assembly can further include a negative adapter sheet, the plurality of negative tab sheets stacked together are welded to one end of the negative adapter sheet, and the other end of the negative adapter sheet is welded to the negative pole, so that the negative tab sheet is electrically connected to the negative pole. The material of the separator film is not limited, for example, it can be polypropylene or polyethylene, etc.

[0067] In the embodiments of the present application, the energy storage device can include one or more battery devices, and can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems, or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output electrical energy at appropriate times. For example, the energy storage device can store electrical energy during off-peak hours, and provide electrical energy for related users or electrical equipment during peak hours. The energy storage system provided in the embodiments of the present application can be any power system that needs to use an energy storage device.

[0068] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet. In some embodiments, the energy storage device can include a cabinet body and one or more battery devices, and the battery devices are contained in the cabinet body.

[0069] In some embodiments, the energy storage device can include a thermal management module, a master control module, a general control module, a power distribution module, and a fire-fighting module, etc. As an example, the thermal management module can include a liquid cooling unit that provides cooling liquid for adjusting the temperature of battery monomers to each battery device through a pipeline. As an example, the master control module can be a battery management unit of a battery cluster, used for monitoring and managing the battery cluster. The master control module can monitor information such as current, voltage, power, or temperature of the battery cluster. For example, the charging and discharging current and voltage of the battery cluster can be controlled. The master control module includes a slave battery management unit (SBMU), a fusion switch, and other modules. As an example, the general control module can be a battery management unit of the energy storage device, used for monitoring and managing the energy storage device. The general control module can monitor information such as current, voltage, power, state of charge, or temperature of the energy storage device. For example, the charging and discharging current and voltage of the energy storage device can be controlled. As an example, the general control module includes an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and an optical fiber conversion module, etc. As an example, the fire-fighting system includes a control panel, a detector, an alarm device, etc., used for detecting, alarming, or extinguishing the energy storage system. As an example, the power distribution device can be used for power distribution to the power consumption module of the energy storage device.

[0070] At present, with the rapid development of energy storage technology, especially the continuous updating and iteration of large cell technology, the energy density and storage capacity of energy storage devices have been significantly improved, and the application of energy storage devices is more and more extensive, which can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems or temporary power supply systems, etc. The electrical energy can be stored as needed and output at the appropriate time. However, in the related art, during the use of the energy storage device, the battery device and the mounting rack are not insulated, and when the insulation of the battery device inside the energy storage device fails, current leakage to the mounting rack may occur.

[0071] Based on the above considerations, in order to better solve the insulation problem between the battery device and the mounting rack, the energy storage device is provided, which comprises a cabinet body, a mounting rack, a battery device and a mounting structure. The cabinet body has a mounting cavity, the mounting rack and the battery device are arranged in the mounting cavity, and the battery device is mounted on the mounting rack through the mounting structure. The mounting structure comprises: a first support rail, a second support rail and a first fastener. The first support rail is mounted on one of the mounting rack and the battery. The first support rail has a first mounting hole formed thereon. The side of the second support rail away from the first support rail defines a sliding groove. The slot wall of the sliding groove has an avoiding through hole formed thereon. The second support rail also defines a matching cavity. The matching cavity is spaced apart from the side of the sliding groove facing the first mounting hole. The first cavity wall of the matching cavity facing the first mounting hole has a second mounting hole formed thereon. The second support rail is made of insulating material. The other of the mounting rack and the battery device is matched in the sliding groove. The avoiding through hole is opposite to the second mounting hole, so that the first fastener is adapted to pass through the avoiding through hole to be arranged in the first mounting hole and the second mounting hole, and the first support rail and the second support rail are fixed. The end of the first fastener is located in the matching cavity, and the first fastener and the avoiding through hole are spaced apart in the axial direction of the first mounting hole.

[0072] In the above technical solution, the second support rail is made of insulating material, and the side of the second support rail away from the first support rail defines a sliding groove. Therefore, the sliding groove is also made of insulating material. The first support rail has a first mounting hole formed thereon. The slot wall of the sliding groove has an avoiding through hole formed thereon. The matching cavity has a second mounting hole. The first fastener is adapted to pass through the avoiding through hole to be arranged in the first mounting hole and the second mounting hole. The avoiding through hole facilitates the installation of the first fastener. The matching cavity is spaced apart from the sliding groove. The end of the first fastener is located in the matching cavity, and the first fastener and the avoiding through hole are spaced apart in the axial direction of the first mounting hole. Therefore, the first fastener is spaced apart from the structure matched in the sliding groove, so that the first fastener does not electrically conduct between the first support rail and the structure matched in the sliding groove, thereby facilitating the electrical isolation between the battery device and the mounting rack.

[0073] The embodiments of the present application provide a power consumption device using the energy storage device or the energy storage system as a power supply. The power consumption device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric automobile, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric automobile toy, an electric ship toy, an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc. The electric tool can include a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, an electric planer, etc.

[0074] The following embodiments are described in detail with the power consumption device 4 as a vehicle for convenience of description.

[0075] Please refer to Figure 1 , Figure 1 The power consumption device 4 provided by some embodiments of the present application is a structural schematic diagram of a vehicle. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. The vehicle is provided with a battery device 66, which can be arranged at the bottom, the head, or the tail of the vehicle. The battery device 66 can be used for power supply of the vehicle, for example, the battery device 66 can be used as an operating power supply of the vehicle. The vehicle can further include a controller 75 and a motor 76, the controller 75 is used to control the battery device 66 to supply power to the motor 76, for example, to meet the working power demand of the vehicle during starting, navigation, and driving. In some embodiments of the present application, the battery device 66 can not only be used as an operating power supply of the vehicle, but also be used as a driving power supply of the vehicle, to replace or partially replace fuel or natural gas to provide driving power for the vehicle.

[0076] Please refer to Figure 2 , Figure 2The battery cell 78 provided in some embodiments of the present application is used in the structural explosion diagram of the battery device 66. The battery device 66 includes a box 77 and a plurality of battery cells 78, and the battery cells 78 are accommodated in the box 77. Among them, the box 77 is used to provide an assembly space for the battery cell 78, and the box 77 can adopt various structures. In some embodiments, the box 77 can include a first box 770 and a second box 772, and the first box 770 and the second box 772 are covered with each other, and the first box 770 and the second box 772 jointly define an accommodation cavity for accommodating the battery cell 78. The second box 772 can be a hollow structure with one end open, and the first box 770 can be a plate-shaped structure, and the first box 770 is covered on the open side of the second box 772, so that the first box 770 and the second box 772 jointly define the accommodation cavity; or, the first box 770 and the second box 772 can also be hollow structures with one side open (for example Figure 2 As shown), and the open side of the first box 770 is covered on the open side of the second box 772. Of course, the box 77 formed by the first box 770 and the second box 772 can be various shapes, such as a cylinder, or a cuboid, etc.

[0077] In the battery device 66, a plurality of battery cells 78 can be connected in series, in parallel, or in a mixed manner, and the mixed manner means that there are both series and parallel connections among the plurality of battery cells 78. The plurality of battery cells 78 can be directly connected in series, in parallel, or in a mixed manner, and then the whole of the plurality of battery cells 78 is accommodated in the box 77; or, the battery device 66 can also be that the plurality of battery cells 78 are first connected in series, in parallel, or in a mixed manner to form a battery device 66 module, and then a plurality of battery device 66 modules are connected in series, in parallel, or in a mixed manner to form a whole, and are accommodated in the box 77. The battery device 66 can also include other structures, for example, the battery device 66 can also include a busbar for realizing the electrical connection between the plurality of battery cells 78.

[0078] Please refer to Figures 3-7 In the embodiments of the present application, the energy storage device 2 includes a cabinet 60, a mounting frame 64, a battery device 66, and a mounting structure 1, the cabinet 60 has a mounting cavity 62, the mounting frame 64 and the battery device 66 are arranged in the mounting cavity 62, and the battery device 66 is mounted on the mounting frame 64 through the mounting structure 1. By arranging the mounting frame 64, the battery device 66, and the mounting structure 1 in the mounting cavity 62, the mounting cavity 62 provides a relatively closed environment for the operation of the battery device 66, so that the battery device 66 is not easily disturbed by the external environment when it is mounted on the mounting frame 64 through the mounting structure 1, and the battery device 66 can maintain a relatively stable setting position on the mounting frame 64, thereby improving the stability of the operation of the energy storage device 2.

[0079] The mounting structure 1 comprises a first support rail 10, a second support rail 20 and a first fastener 30, the first support rail 10 is mounted on one of a mounting bracket 64 and a battery device 66, the first support rail 10 is formed with a first mounting hole 12, a side of the second support rail 20 away from the first support rail 10 defines a sliding groove 22, the sliding groove 22 is formed with an avoiding through hole 220 on a groove wall of the sliding groove 22, the second support rail 20 further defines a matching cavity 24, the matching cavity 24 is spaced apart from a side of the sliding groove 22 towards the first mounting hole 12, the matching cavity 24 is formed with a second mounting hole 242 on a first cavity wall 240 of the matching cavity 24 towards the first mounting hole 12, the second support rail 20 is a piece of insulating material, the other one of the mounting bracket 64 and the battery device 66 is matched to the sliding groove 22, the avoiding through hole 220 is opposite to the second mounting hole 242, so that the first fastener 30 is adapted to pass through the first mounting hole 12 and the second mounting hole 242 through the avoiding through hole 220, and fix the first support rail 10 and the second support rail 20, an end portion 300 of the first fastener 30 is located in the matching cavity 24, and the first fastener 30 and the avoiding through hole 220 are spaced apart in an axial direction (such as a CC' direction in the figure) of the first mounting hole 12. Figure 4

[0080] ​It can be seen that the second support rail 20 is an insulating material piece, and the second support rail 20 has good insulation performance. The side of the second support rail 20 away from the first support rail 10 defines a sliding groove 22. If the first support rail 10 is installed on the mounting rack 64, the battery device 66 can be matched in the sliding groove 22 in a sliding manner. If the first support rail 10 is installed on the battery device 66, the mounting rack 64 can be matched in the sliding groove 22 in a sliding manner. This is conducive to improving the installation convenience of the battery device 66. The first mounting hole 12 is formed on the first support rail 10. The first mounting hole 12 can be used to at least realize the installation of the first support rail 10. The second support rail 20 further defines a matching cavity 24. The matching cavity 24 is spaced apart from the side of the sliding groove 22 facing the first mounting hole 12. Then, the matching cavity 24 can separate the sliding groove 22 from the first mounting hole 12 and the wall of the first support rail 10 on which the first mounting hole 12 is formed. The avoiding through hole 220 is formed on the groove wall of the sliding groove 22. The second mounting hole 242 is formed on the first cavity wall 240 of the matching cavity 24 facing the first mounting hole 12. The first fastener 30 can pass through the avoiding through hole 220 and the second mounting hole 242 to fix the first support rail 10 and the second support rail 20, so that the cooperation of the first support rail 10 and the second support rail 20 is more stable. The end of the first fastener 30 is located in the matching cavity 24, and the first fastener 30 and the avoiding through hole 220 are spaced apart in the axial direction of the first mounting hole 12. That is, the first fastener 30 does not contact the groove wall of the sliding groove 22. Therefore, the first fastener 30 is spaced apart from the sliding groove 22. It can be seen that the avoiding through hole 220 is provided to facilitate the smooth installation of the first fastener 30. At the same time, the matching cavity 24 is provided so that the first fastener 30 does not contact the structure matched in the sliding groove 22. Therefore, the first fastener 30 does not scratch the structure matched in the sliding groove 22. At the same time, the first fastener 30 does not electrically connect the first support rail 10 and the structure matched in the sliding groove 22. This is conducive to improving the insulation performance between the mounting rack 64 and the battery device 66, and facilitating the electrical isolation between the battery device 66 and the mounting rack 64.

[0081] In addition, the first support rail 10 is adapted to be installed on one of the mounting rack 64 or the battery device 66. The avoiding through hole 220 and the second mounting hole 242 can be located on the opposite two cavity walls of the matching cavity 24, respectively. The first fastener 30 can pass through the avoiding through hole 220 and the second mounting hole 242. The side of the second support rail 20 away from the first support rail 10 provides a space for the installation of the first fastener 30. Workers do not need to install the first fastener 30 in a narrow space, but can install it in a relatively spacious environment, which is conducive to the installation of the first fastener 30. Therefore, the avoiding through hole 220 greatly facilitates the installation of the first fastener 30 and reduces the obstacles in the installation process.

[0082] Exemplarily, the first support rail 10 is installed on the mounting rack 64, the second support rail 20 is installed on the side of the first support rail 10 away from the mounting rack 64, and the first fastener 30 can pass through the first mounting hole 12 and the second mounting hole 242 from the side of the second support rail 20 away from the first support rail 10 through the avoiding through hole 220, so as to facilitate the installation of the first fastener 30. Of course, the first support rail 10 can also be installed on the battery device 66. Optionally, the first fastener 30 is configured such that the first support rail 10 and the second support rail 20 are detachably arranged, for example, the first fastener 30 is a threaded fastener (such as a screw), which facilitates the installation and disassembly of the first support rail 10 and the second support rail 20, facilitates subsequent maintenance and repair, and makes the overall structure more compact and saves space.

[0083] It can be understood that the first support rail 10 can be installed on the mounting rack 64 or the first support rail 10 is installed on the battery device 66, and the installation position of the first support rail 10 is more flexible without affecting the electrical isolation between the mounting rack 64 and the battery device 66. For example, the first support rail 10 is installed on the mounting rack 64, and the first fastener 30 can install the first support rail 10 and the second support rail 20 on the mounting rack 64.

[0084] Optionally, the second support rail 20 is made of an insulating material with high structural strength, such as epoxy resin or nylon, to facilitate the improvement of the service life of the second support rail 20.

[0085] Please refer to Figures 3-10 In some embodiments, the avoiding through hole 220, the first mounting hole 12 and the second mounting hole 242 are respectively a plurality of, a plurality of second mounting holes 242 are arranged along the length direction of the second support rail 20 (such as Figure 5 the AA' direction in the figure), and each first mounting hole 12 corresponds to one avoiding through hole 220 and one second mounting hole 242. It can be understood that a plurality of first mounting holes 12 are arranged along the length direction of the first support rail 10, a plurality of avoiding through holes 220 are arranged along the length direction of the second support rail 20, the length direction of the first support rail 10 is consistent with the length direction of the second support rail 20, and the length direction of the second support rail 20 can be understood as the length direction of the chute 22.

[0086] It can be seen that the avoidance through hole 220, the first mounting hole 12 and the second mounting hole 242 are respectively multiple, and multiple first fasteners 30 can be fixed through the corresponding avoidance through hole 220, the first mounting hole 12 and the second mounting hole 242 to fix the first support rail 10 and the second support rail 20, increase the number of fixed points between the first support rail 10 and the second support rail 20, and facilitate to enhance the stability and reliability of the connection between the first support rail 10 and the second support rail 20; and a single avoidance through hole 220 can be used to avoid a single first fastener 30, and the opening size thereof does not need to be large, which is beneficial to reduce the weakening effect caused by the opening of the avoidance through hole 220 on the second support rail 20.

[0087] Please refer to Figures 5-8 In some embodiments, one end of the length of one of the first support rail 10 and the second support rail 20 is provided with a first stop piece 14. Among them, the other of the first support rail 10 and the second support rail 20 abuts against the first stop piece 14 in the length direction to limit the relative movement of the first support rail 10 and the second support rail 20 in the length direction; and / or the first stop piece 14 blocks the open end of the fitting cavity 24 corresponding to the first end 260 of the second support rail 20 in the length direction. It can be understood that the first stop piece 14 can be located on the first support rail 10, or the first stop piece 14 is located on the second support rail 20.

[0088] It can be seen that the first stop piece 14 can limit the relative movement of the first support rail 10 and the second support rail 20 in the length direction, and the first stop piece 14 can serve as a reference point during the installation of the first support rail 10 and the second support rail 20, making the installation of the first support rail 10 and the second support rail 20 more convenient. The worker only needs to align and push the first support rail 10 and the second support rail 20 to the first stop piece 14, which can ensure that the first support rail 10 and the second support rail 20 can be in the correct installation position in the length direction without the need for additional measurement and adjustment steps, facilitating the subsequent fixation of the first support rail 10 and the second support rail 20 by the first fastener 30. The existence of the first stop piece 14 simplifies the installation process of the first support rail 10 and the second support rail 20; and / or the first stop piece 14 blocks the open end of the fitting cavity 24 corresponding to the first end 260 of the second support rail 20 in the length direction. The first stop piece 14 forms an effective barrier in the fitting cavity 24 corresponding to the first end 260 of the second support rail 20 in the length direction, reducing the possibility of foreign matter entering the fitting cavity 24 and contacting the chute 22 area through the avoidance through hole 220, protecting the insulation performance between the mounting frame 64 and the battery device 66, and improving the reliability of the mounting structure 1.

[0089] Exemplarily, as Figure 7As shown, the first stopper 14 is arranged at one end of the first support rail 10 in a bent manner, and the first stopper 14 extends towards the second support rail 20, and the first stopper 14 abuts against the first end 260 of the second support rail 20, and the first stopper 14 covers the open end of the fitting cavity 24 corresponding to the first end 260.

[0090] Please refer to Figures 4-9 In some embodiments, the fitting cavity 24 has a second cavity wall 244 arranged opposite to the first cavity wall 240, and the second cavity wall 244 is configured as a slot wall of the slot 22.

[0091] It can be seen that the second mounting hole 242 is formed on the first cavity wall 240, the avoiding through hole 220 is formed on the second cavity wall 244, and the avoiding through hole 220 communicates the slot 22 and the fitting cavity 24, the first cavity wall 240 and the second cavity wall 244 are arranged opposite to each other, and the avoiding through hole 220 is opposite to the second mounting hole 242, so as to facilitate the worker to pass the first fastener 30 through the avoiding through hole 220 and the first mounting hole 12 and the second mounting hole 242, and to simplify the structure of the fitting cavity 24 and the structure of the second support rail 20.

[0092] In some embodiments, the first support rail 10 includes a first plate body 15 and a second plate body 16, at least one end of the first plate body 15 in the width direction (such as the BB' direction in the figure) is connected to the second plate body 16 in a bent manner, so as to define a first mounting slot 17, and the first mounting hole 12 is formed on the first plate body 15. Figure 8 The second support rail 20 includes a third plate body 25, a fourth plate body 26 and a partition 27, at least one end of the third plate body 25 in the width direction is connected to the fourth plate body 26 in a bent manner, so as to define a second mounting slot 28, the partition 27 is arranged in the second mounting slot 28 and separates the second mounting slot 28 into the slot 22 and the fitting cavity 24, the second mounting hole 242 is formed on the third plate body 25, the avoiding through hole 220 is formed on the partition 27, and the fourth plate body 26 is fixedly connected to the second plate body 16.

[0093] It can be seen that at least one of the two ends of the width of the first plate body 15 is connected with the second plate body 16 by bending, so that the first support rail 10 is more compact in structure, and the bending connection mode also enhances the stability of the first support rail 10, thereby facilitating the enhancement of the structural strength of the first support rail 10, for example, the cross-sectional shape of the structure defined by the first plate body 15 and the second plate body 16 can be L-shaped or C-shaped; the first plate body 15 and the second plate body 16 define the first mounting slot 17, that is, the first mounting slot 17 is formed by the bending connection of the first plate body 15 and the second plate body 16, thereby reducing the additional mechanical processing steps such as cutting and drilling required for manufacturing the first mounting slot 17, thereby simplifying the production process and reducing the production cost; at least one of the two ends of the width of the third plate body 25 is connected with the third plate body 25 by bending, so that the second support rail 20 defines the second mounting slot 28, the partition piece 27 is arranged in the second mounting slot 28 to separate the second mounting slot 28 into the sliding groove 22 and the matching cavity 24, and through the cooperation of the third plate body 25, the fourth plate body 26 and the partition piece 27, the structure of the second support rail 20 is more compact, and the third plate body 25 and the fourth plate body 26 are connected by bending and the partition piece 27 is arranged in the second mounting slot 28, thereby facilitating the enhancement of the structural strength of the second support rail 20 and the improvement of the service life of the second support rail 20, for example, the cross-sectional shape of the structure defined by the third plate body 25 and the fourth plate body 26 can be L-shaped or C-shaped; the third plate body 25 and the fourth plate body 26 can define the second mounting slot 28, that is, the second mounting slot 28 is formed by the bending connection of the third plate body 25 and the fourth plate body 26, and the partition piece 27 separates the second mounting slot 28 into the sliding groove 22 and the matching cavity 24, thereby reducing the additional mechanical processing steps such as cutting and drilling required for manufacturing the sliding groove 22 and the matching cavity 24, thereby simplifying the production process and reducing the production cost; the first mounting hole 12 is formed on the first plate body 15, and the second mounting hole 242 is formed on the third plate body 25, so that the first fastener 30 can fix the first plate body 15 and the third plate body 25, and the fourth plate body 26 is fixedly connected with the second plate body 16, thereby facilitating the enhancement of the matching strength of the first support rail 10 and the second support rail 20 and making the mounting structure 1 more stable in use.

[0094] It can be understood that the second plate body 16 can be connected with the first plate body 15 at one end of the width of the first plate body 15, or the second plate body 16 can be connected with the first plate body 15 at both ends of the width of the first plate body 15; the fourth plate body 26 can be connected with the third plate body 25 at one end of the width of the third plate body 25, or the fourth plate body 26 can be connected with the third plate body 25 at both ends of the width of the third plate body 25, thereby facilitating the adaptation to different installation environments. The connection mode between the second plate body 16 and the fourth plate body 26 is not specifically limited.

[0095] Please refer to Figures 7-11In some embodiments, the second plate body 16 and the fourth plate body 26 are two, respectively, the partition 27 connects the two fourth plate bodies 26, the mounting structure 1 further comprises at least one of the first pressing member 29, the second stop member 40 and the third stop member 42, and the at least one of the first pressing member 29, the second stop member 40 and the third stop member 42 is an insulating material piece, the first pressing member 29 is arranged in the second mounting groove 28 and is arranged on one of the fourth plate bodies 26, the first pressing member 29 is spaced apart from the other fourth plate body 26, and the first pressing member 29 is adapted to apply a pressing force to the guide rail 68 fitted in the sliding groove 22 towards the other fourth plate body 26; the second stop member 40 is arranged in the second mounting groove 28 and is arranged at the first end 260 of the other fourth plate body 26 in the length direction, the second stop member 40 is adapted to abut against the guide rail 68 fitted in the sliding groove 22 to limit the movement of the guide rail 68 in the length direction; the third stop member 42 is arranged in the second mounting groove 28 and is located at the second end 262 of the fourth plate body 26 in the length direction, at least one of the first support rail 10 and the second support rail 20 is detachably connected with the third stop member 42, and the third stop member 42 is adapted to abut against the guide rail 68 fitted in the sliding groove 22 to limit the movement of the guide rail 68 in the length direction.

[0096] It can be seen that the second plate body 16 is respectively connected to the two ends of the width of the first plate body 15 through bending, and the fourth plate body 26 is respectively connected to the two ends of the width of the third plate body 25 through bending, which facilitates to enhance the structural strength of the first support rail 10 and the second support rail 20, so that the mounting structure 1 is more stable in use; the divider 27 is connected to the two fourth plate bodies 26 to separate the second mounting groove 28 formed by the third plate body 25 and the two fourth plate bodies 26 into the sliding groove 22 and the matching cavity 24, that is, the divider 27 can support the two fourth plate bodies 26, which facilitates to further enhance the structural strength of the second support rail 20; the mounting structure 1 further comprises the first pressing piece 29, the second stop piece 40 and the third stop piece 42 which are insulating material pieces, that is, the first pressing piece 29, the second stop piece 40 and the third stop piece 42 do not affect the insulation performance of the sliding groove 22, so that the sliding groove 22 has good insulation effect; the first pressing piece 29 is arranged in the second mounting groove 28 and is arranged on one of the fourth plate bodies 26, and the first pressing piece 29 is arranged in space with the other fourth plate body 26; when the guide rail 68 is matched with the sliding groove 22, the first pressing piece 29 can exert a pressing force on the guide rail 68 towards the other fourth plate body 26, so that the guide rail 68 is in closer contact with the first pressing piece 29 and the other fourth plate body 26, which facilitates to enhance the stability of the guide rail 68 when matched with the sliding groove 22, so that the mounting structure 1 is more stable in use, and the problem of component damage caused by shaking during transportation of the battery device 66 is improved; the second stop piece 40 is arranged in the second mounting groove 28 and is arranged at the first end 260 of the fourth plate body 26 in the length direction, and the second stop piece 40 is adapted to abut against the guide rail 68 matched with the sliding groove 22 to limit the movement of the guide rail 68 in the length direction, that is, when the second stop piece 40 abuts against the guide rail 68, the second stop piece 40 can limit the guide rail 68 from continuing to move towards the first end 260 of the fourth plate body 26, so that the guide rail 68 is not easy to be pulled out from the first end 260 of the fourth plate body 26, and at the same time, the second stop piece 40 provides a clear reference point for the installation of the guide rail 68, when the guide rail 68 moves along the sliding groove 22 until it comes into contact with the second stop piece 40, it indicates that the guide rail 68 has accurately reached the preset installation position, which simplifies the installation process and enables the staff to quickly confirm the installation state of the guide rail 68, thereby effectively improving the installation efficiency of the guide rail 68 and the sliding groove 22.The third stopper 42 is arranged in the second mounting slot 28 and located at the second end 262 of the fourth plate body 26 in the length direction. The third stopper 42 is detachably connected with at least one of the first support rail 10 and the second support rail 20, facilitating the mounting and dismounting of the third stopper 42. The third stopper 42 is adapted to abuttingly cooperate with the guide rail 68 fitted in the sliding groove 22 to limit the movement of the guide rail 68 in the length direction. When the guide rail 68 is fitted in the sliding groove 22, the third stopper 42 is mounted and abuttingly cooperates with the guide rail 68. The third stopper 42 can limit the movement of the guide rail 68 towards the second end 262 of the fourth plate body 26, so that the guide rail 68 is not easily disengaged from the second end 262 of the fourth plate body 26. If it is needed to disengage the guide rail 68 from the sliding groove 22, the third stopper 42 can be dismounted, and the guide rail 68 can be smoothly moved out of the sliding groove 22 from the second end 262. Meanwhile, the cooperation of the third stopper 42 and the second stopper 40 can limit the movement of the guide rail 68 fitted in the sliding groove 22 in the length direction. That is, the two ends of the guide rail 68 in the length direction are respectively abuttingly cooperated with the second stopper 40 and the third stopper 42, so that the guide rail 68 can be more stable after being fitted in the sliding groove 22.

[0097] It can be understood that the third stopper 42 can be detachably connected with the first support rail 10, or the third stopper 42 can be detachably connected with the second support rail 20, or the third stopper 42 can be detachably connected with both the first support rail 10 and the second support rail 20.

[0098] It can be understood that the first support rail 10 includes the first plate body 15 and the second plate body 16, and the second support rail 20 includes the third plate body 25 and the fourth plate body. The first plate body 15 and the third plate body 25 are oppositely arranged, and the second plate body 16 and the fourth plate body 26 are also oppositely arranged. The first end 260 of the fourth plate body 26 in the length direction is also the first end 260 of the first plate body 15, the second plate body 16, the third plate body 25 and the partition 27, and is also the first end 260 of the first support rail 10 and the second support rail 20. The second end 262 of the fourth plate body 26 in the length direction is also the second end 262 of the first plate body 15, the second plate body 16, the third plate body 25 and the partition 27, and is also the second end 262 of the first support rail 10 and the second support rail 20. Therefore, the first end 260 of the fourth plate body 26 in the length direction is also the first end 260 of the sliding groove 22, the fitting cavity 24 and the first mounting slot 17, and the second end 262 of the fourth plate body 26 in the length direction is also the second end 262 of the sliding groove 22, the fitting cavity 24 and the first mounting slot 17. That is, the second stopper 40 is located at one end of the fourth plate body 26 in the length direction, and the third stopper 42 is located at the other end of the third plate body 25 in the length direction. In other words, the second stopper 40 and the third stopper 42 are respectively arranged at the two ends of the fourth plate body 26 in the length direction.

[0099] Exemplarily, when the worker needs to install the battery device 66 on the mounting rack 64, the guide rail 68 can be inserted into the sliding groove 22 from the second end 262 of the sliding groove 22 and moved towards the first end 260 of the sliding groove 22 until the guide rail 68 is in abutting contact with the second stopper 40 to limit the movement of the guide rail 68 towards the first end 260 of the sliding groove 22, and then the third stopper 42 is installed on the second end 262 of the sliding groove 22 so that the guide rail 68 is in abutting contact with the third stopper 42 to limit the movement of the guide rail 68 towards the first end 260 of the sliding groove 22, thereby completing the assembly of the battery device 66 and the mounting rack 64, i.e., the possibility of the movement of the guide rail 68 at both ends of the sliding groove 22 in the length direction is limited by the second stopper 40 and the third stopper 42, so that the guide rail 68 and the sliding groove 22 are more stable in cooperation; when the worker needs to disassemble the battery device 66 from the mounting rack 64, the third stopper 42 can be disassembled from the second end 262 of the sliding groove 22 first, and then the guide rail 68 is moved towards the second end 262 of the sliding groove 22, thereby completing the disassembly of the battery device 66 and the mounting rack 64, which facilitates to improve the assembly and disassembly efficiency of the worker.

[0100] Optionally, the first pressing member 29, the second stopper 40 and the third stopper 42 are all made of an insulating material with high structural strength, such as epoxy resin or nylon, thereby facilitating to improve the service life of the second support rail 20.

[0101] Please refer to Figures 4-7 In some embodiments, the mounting structure 1 comprises the first pressing member 29, the first pressing member 29 is fixed on one of the fourth plate bodies 26 by the second fastener 32, the second fastener 32 is arranged on the second plate body 16 to fix the first pressing member 29 and the second plate body 16, and the first pressing member 29 covers the second fastener 32; and / or the mounting structure 1 comprises the second stopper 40, the second stopper 40 is fixed on the other fourth plate body 26 by the third fastener 34, the third fastener 34 is arranged on the second plate body 16 to fix the second stopper 40 and the second plate body 16, and the second stopper 40 covers the third fastener 34.

[0102] The first pressing member 29 is fixed on one of the fourth plate bodies 26 by the second fastener 32, and the second fastener 32 is arranged on the second plate body 16 to fix the first pressing member 29 and the second plate body 16, i.e., the second fastener 32 can fix the first pressing member 29, the second plate body 16 and the fourth plate body 26 together, so that the first pressing member 29, the second plate body 16 and the fourth plate body 26 do not need to be fixed respectively, thereby facilitating to reduce the amount of fasteners and facilitating the worker to assemble, and the first pressing member 29 covers the second fastener 32, the first pressing member 29 will be in abutting contact with the guide rail 68, and the insulating first pressing member 29 covering the second fastener 32 makes the second fastener 32 less likely to affect the insulation performance of the sliding groove 22.

[0103] The second stopper 40 is fixed to the fourth plate body 26 by the third fastener 34, and the third fastener 34 is arranged through the second plate body 16 to fix the second stopper 40 and the second plate body 16, that is, the third fastener 34 can fix the second stopper 40, the fourth plate body 26 and the second plate body 16 together, and it is not necessary to fix the second stopper 40, the second plate body 16 and the fourth plate body 26 respectively, thereby reducing the amount of fasteners and facilitating the assembly of the staff. In addition, the second stopper 40 covers the third fastener 34, and the second stopper 40 will be in contact with the guide rail 68. The insulating second stopper 40 covering the third fastener 34 makes the third fastener 34 less likely to affect the insulation performance of the sliding groove 22.

[0104] Optionally, the second fastener 32 and the third fastener 34 are configured such that the first pressing part 29 and the second stopper 40 are detachably arranged, for example, the second fastener 32 and the third fastener 34 are both threaded fasteners (such as screws), and the installation and disassembly of the first pressing part 29 and the second stopper 40 are more convenient, thereby facilitating subsequent maintenance and repair, and making the overall structure more compact and saving space.

[0105] Please refer to Figures 5-7 In some embodiments, the mounting structure 1 comprises a third stopper 42, one side of the third stopper 42 is connected with a mounting plate 420, the mounting plate 420 shields the open end of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20 in the length direction, and the end of each second plate body 16 is connected with a first mounting flange 160, and each first mounting flange 160 is detachably connected with the mounting plate 420.

[0106] It can be seen that one side of the third stopper 42 is connected with the mounting plate 420 to shield the open end of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20 in the length direction, and the mounting plate 420 forms an effective barrier at the open end of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20 in the length direction, thereby reducing the possibility of foreign matter entering the fitting cavity 24 and contacting the sliding groove 22 area through the avoidance through hole 220, protecting the insulation performance of the sliding groove 22 and improving the reliability of the mounting structure 1; the end of each second plate body 16 is connected with the first mounting flange 160, and each first mounting flange 160 is detachably connected with the mounting plate 420, so that the first mounting flange 160 is located at the end of the second plate body 16, providing more operating space for the staff to assemble and disassemble the first mounting flange 160 and the mounting plate 420, thereby facilitating the installation and disassembly of the third stopper 42.

[0107] Please refer to Figures 5-7In other embodiments of the present application, the third stopper 42 is connected with a mounting plate 420 on one side, the mounting plate 420 covers the open end of the length direction of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20, one end of one of the second plate bodies 16 is connected with a first mounting flange 160, the side of the other second plate body 16 away from the first mounting groove 17 supports a third support rail 50, the third support rail 50 is fixed with the first support rail 10, the end of the third support rail 50 is connected with a second mounting flange 52, and the first mounting flange 160 and the second mounting flange 52 are respectively detachably connected with the mounting plate 420.

[0108] It can be seen that the side of one of the second plate bodies 16 away from the first mounting groove 17 supports the third support rail 50, the third support rail 50 is fixed with the first support rail 10, and the third support rail 50 can support the second plate body 16, thereby facilitating the enhancement of the structural strength of the first support rail 10 and the better load bearing capacity of the first support rail 10; the end of the other second plate body 16 is connected with the first mounting flange 160, the end of the third support rail 50 is connected with the second mounting flange 52, and the first mounting flange 160 and the second mounting flange 52 are respectively detachably connected with the mounting plate 420, so that the first mounting flange 160 and the second mounting flange 52 are respectively located at the ends of the second plate body 16 and the third support rail 50, thereby providing a larger operation space for the staff to assemble and disassemble the first mounting flange 160 and the second mounting flange 52 with the mounting plate 420, and facilitating the installation and disassembly of the third stopper 42.

[0109] Please refer to Figures 5-7 In some embodiments, the mounting structure 1 comprises the first pressing part 29, the second stopper 40 and the third stopper 42, the first pressing part 29 is a plurality of and is arranged at intervals along the length direction, and the spacing between the plurality of first pressing parts 29 and the other fourth plate body 26 decreases (such as H1 Figure 6 H2

[0110] It can be seen that the first pressing part 29 is a plurality of and is arranged at intervals along the length direction, the plurality of first pressing parts 29 are all located on one of the fourth plate bodies 26 of the second support rail 20, and the plurality of first pressing parts 29 can all exert an extrusion force on the guide rail 68 fitted in the sliding groove 22 towards the other fourth plate body 26, so that the sliding groove 22 and the guide rail 68 are in contact more closely, thereby facilitating the improvement of the stability of the cooperation between the guide rail 68 and the sliding groove 22.

[0111] In addition, the spacing between the plurality of first pressing members 29 and the other fourth plate body 26 decreases in the direction of the third stopper 42 towards the second stopper 40, the second stopper 40 is located at the first end 260 of the fourth plate body 26, and the third stopper 42 is located at the second end 262 of the fourth plate body 26, that is, in the direction of the second end 262 of the fourth plate body 26 towards the first end 260, the spacing between the plurality of first pressing members 29 and the other fourth plate body 26 decreases, and the worker can install the guide rail 68 on the sliding groove 22 in the direction of the second end 262 of the fourth plate body 26 towards the first end 260. The guide rail 68 sequentially contacts the first pressing members 29 with gradually decreasing spacing, and the plurality of first pressing members 29 will sequentially exert a gradually increasing extrusion force on the guide rail 68, so that the guide rail 68 will be gradually more tightly constrained during movement in the sliding groove 22, thereby facilitating the stability of the cooperation between the guide rail 68 and the sliding groove 22, and when it is necessary to disassemble the guide rail 68 from the sliding groove 22, the same reverse operation can be performed from the second end 262 of the fourth plate body 26 to the first end 260, and the guide rail 68 can be easily separated from the plurality of first pressing members 29, thereby achieving quick disassembly and simplifying the installation and disassembly process.

[0112] Please refer to Figures 5-7 In some embodiments, the mounting structure 1 includes the first pressing member 29, and the side of the first pressing member 29 facing the other fourth plate body 26 is provided with the first buffer 290, that is, when the guide rail 68 is cooperated with the sliding groove 22, the first buffer 290 directly contacts the guide rail 68, and the first pressing member 29 does not directly contact the guide rail 68. The first buffer 290 can absorb the impact of the guide rail 68 when it is cooperated with the sliding groove 22, so that the guide rail 68 moves more smoothly in the sliding groove 22; and / or the mounting structure 1 includes the second stopper 40 and the third stopper 42, and at least one of the second stopper 40 and the third stopper 42 is provided with the second buffer 46 on the side facing the center of the sliding groove 22, that is, when the guide rail 68 is cooperated with the sliding groove 22, the second buffer 46 of the second stopper 40 and / or the third stopper 42 directly contacts the guide rail 68. The second buffer 46 can reduce the impact of the guide rail 68 on the second stopper 40 and / or the third stopper 42, and at the same time, the second buffer 46 deforms to a certain extent to absorb the dimensional error between the guide rail 68 and the sliding groove 22, so that the guide rail 68 is more stable when it is cooperated with the sliding groove 22.

[0113] It can be understood that the second stopper 40 has the second buffer 46, or the third stopper 42 has the second buffer 46, or the second stopper 40 and the third stopper 42 both have the second buffer 46, which facilitates further reducing the possibility of deformation of the guide rail 68, the second stopper 40 and the third stopper 42, thereby improving the service life of the guide rail 68 and the mounting structure 1.

[0114] Optionally, the first buffer 290 is made of foam material, which can withstand large force and long time compression, has good buffering and shockproof effect, and is convenient for improving the service life of the first pressing part 29; the second buffer 46 is made of silicone rubber material, which has good buffering and shockproof performance, and is convenient for improving the service life of the second and / or third stopping part.

[0115] Please refer to Figure 5 , Figure 7 and Figure 9 In some embodiments, the second support rail 20 further comprises a shielding flange 21, which is bent and connected to one end of the fourth plate body 26 away from the third plate body 25, and the shielding flange 21 covers the end of the second plate body 16.

[0116] As can be seen, the shielding flange 21 is bent and connected to one end of the fourth plate body 26 away from the third plate body 25, and the shielding flange 21 covers the end of the second plate body 16, which reduces the possibility of the second plate body 16 contacting the guide rail 68. Even if the second plate body 16 is made of metal considering the structural strength of the first support rail 10, the above-mentioned arrangement still makes the guide rail 68 have good insulation effect when cooperating with the sliding groove 22, thereby improving the reliability of the mounting structure 1.

[0117] Please refer to Figures 4-7 In some embodiments, the lower side of the first support rail 10 is supported by a third support rail 50, which is fixed with the first support rail 10 and can support the first support rail 10, thereby enhancing the load-bearing capacity of the first support rail 10 and improving the practicality of the mounting structure 1. At this time, the second support rail 20 and the third support rail 50 are located on different sides of the first support rail 10. For example, the second support rail 20 can be located on one side of the first support rail 10 in the horizontal direction, or the second support rail 20 can be located on the upper side of the first support rail 10.

[0118] Please refer to Figures 4-7 In some embodiments, the first support rail 10 comprises a first plate body 15 and a second plate body 16, the lower end of the first plate body 15 is bent and connected with the second plate body 16, so as to define a first mounting slot 17 for accommodating the second support rail 20, the first mounting hole 12 is formed on the first plate body 15, the third support rail 50 comprises a fifth plate body 54 and a sixth plate body 56 which are bent and connected, the fifth plate body 54 is arranged in parallel with the second plate body 16 and connected to the lower side of the second plate body 16, the sixth plate body 56 is flush with the first plate body 15, and the third mounting hole 57 is formed on the sixth plate body 56.

[0119] It can be seen that the first installation groove 17 is formed by the bending connection of the first plate body 15 and the second plate body 16, which reduces the additional mechanical processing steps required for manufacturing the first installation groove 17, such as cutting, drilling, etc., thereby simplifying the production process and reducing the production cost; the fifth plate body 54 and the second plate body 16 are arranged in parallel, and the fifth plate body 54 is connected to the lower side of the second plate body 16, and the sixth plate body 56 is flush with the first plate body 15, so that the side surface of the sixth plate body 56 away from the fifth plate body 54 and the side surface of the first plate body 15 away from the second plate body 16 can be in the same plane, and the fifth plate body 54 and the sixth plate body 56 facilitate enhancing the structural strength of the first support rail 10 and improving the carrying capacity of the first support rail 10, and at the same time, the sixth plate body 56 and the first plate body 15 can form a relatively flat mounting surface, and the mounting structure 1 can be reliably installed through the first installation hole 12 and the third installation hole 57, for example, when the mounting structure 1 is installed on the mounting rack 64, the first installation hole 12 and the third installation hole 57 are used to realize the fixed connection with the mounting rack 64, facilitating the assembly of the mounting structure 1.

[0120] Please refer to Figure 4 and Figure 5 In some embodiments, the mounting structure 1 further comprises a shielding piece 48, which is arranged in the matching cavity 24, and the shielding piece 48 is located between the first fastener 30 and the groove wall of the sliding groove 22 to separate the first fastener 30 and the avoidance through hole 220, and the shielding piece 48 is a piece of insulating material.

[0121] It can be seen that the shielding piece 48 is arranged in the matching cavity 24 and shields the first fastener 30 and the avoidance through hole 220, and the shielding piece 48 is a piece of insulating material, which facilitates reducing the possibility of the first fastener 30 extending into the sliding groove 22 due to loosening and affecting the insulation performance between the mounting rack 64 and the battery device 66.

[0122] For example, the worker can fix the first support rail 10 and the second support rail 20 by inserting the first fastener 30 through the avoidance through hole 220 into the first installation hole 12 and the second installation hole 242, and then insert the shielding piece 48 into the matching cavity 24, so that the shielding piece 48 can effectively isolate the first fastener 30 and the avoidance through hole 220, and the shielding piece 48 will not affect the installation of the first fastener 30.

[0123] Please refer to Figures 4-10 In some embodiments, the second end 262 of the matching cavity 24 in the length direction of the first support rail 10 is open to form an opening 2622, and the shielding piece 48 is adapted to be matched in the matching cavity 24 through the opening 2622.

[0124] It can be seen that the shielding piece 48 is adapted to be assembled with the matching cavity 24 through the opening 2622 formed by the second end 262 of the first support rail 10 in the length direction, the opening 2622 provides more space for the installation of the shielding piece 48, and the shielding piece 48 can be matched with the matching cavity 24 in the sliding direction, which facilitates the installation of the shielding piece 48.

[0125] Please refer to Figures 4-10 In some embodiments, the matching cavity 24 has a second cavity wall 244 opposite to the first cavity wall 240, and the shielding piece 48 comprises a seventh plate body 480 and an eighth plate body 482, the seventh plate body 480 is in abutment with the second cavity wall 244, and the seventh plate body 480 is located between the first fastener 30 and the avoidance through hole 220, the width of the seventh plate body 480 is respectively connected with the eighth plate body 482 at both ends, and each eighth plate body 482 extends obliquely to the first cavity wall 240 on the side where the first mounting hole 12 is located, and the two eighth plate bodies 482 are away from each other in the direction of the side where the first mounting hole 12 is located.

[0126] It can be seen that the second mounting hole 242 is formed on the first cavity wall 240, the avoidance through hole 220 is formed on the second cavity wall 244, and the seventh plate body 480 is in abutment with the second cavity wall 244, so that the shielding piece 48 separates the first fastener 30 passing through the second mounting hole 242 from the avoidance through hole 220, so that the first fastener 30 is not easy to directly contact with the avoidance through hole 220 and is not easy to extend into the sliding groove 22, which is beneficial to further improve the insulation performance between the mounting rack 64 and the battery device 66 separated by the second support rail 20.

[0127] In addition, the width of the seventh plate body 480 is respectively connected with the eighth plate body 482 at both ends, the seventh plate body 480 is in abutment with the second cavity wall 244, and each eighth plate body 482 extends obliquely to the first cavity wall 240 on the side where the first mounting hole 12 is located, so that the shielding piece 48 and the matching cavity 24 are more adapted, facilitating the installation of the shielding piece 48, and the two eighth plate bodies 482 are away from each other in the direction of the side where the first mounting hole 12 is located, so that the seventh plate body 480 and the two eighth plate bodies 482 together form a groove with gradually increasing opening, which can realize the avoidance of the first fastener 30 and the shielding piece 48, and reduce the possibility of interference between the shielding piece 48 and the first fastener 30.

[0128] Please refer to Figures 5-10In some embodiments, one of the first support rail 10 and the second support rail 20 is provided with a first stopper 14 at one end of the length thereof, the first stopper 14 is adapted to block the open end of the fitting cavity 24 corresponding to the first end 260 of the second support rail 20 in the length direction, the third stopper 42 is connected with a mounting plate 420 at one side thereof to block the open end of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20 in the length direction, the second end 262 of the fitting cavity 24 in the length direction of the first support rail 10 is open to form an opening 2622, and the blocking member 48 is adapted to be fitted into the fitting cavity 24 through the opening 2622.

[0129] It can be seen that the first stopper 14 blocks the second end 262 of the fitting cavity 24 in the length direction, and the staff only needs to assemble the blocking member 48 through the opening 2622 formed at the second end 262 of the fitting cavity 24, so that the first stopper 14 can reduce the possibility of the blocking member 48 being separated from the first end 260 of the fitting cavity 24, thereby simplifying the installation process of the blocking member 48. Moreover, after the blocking member 48 is installed, the mounting plate 420 can be installed at the first end 260 of the fitting cavity 24, and the mounting plate 420 is adapted to block the second end 262 of the fitting cavity 24 in the length direction, i.e., the mounting plate 420 can reduce the possibility of the blocking member 48 being separated from the second end 262 of the fitting cavity 24. Through the cooperation of the first stopper 14 and the mounting plate 420, the blocking member 48 is not easy to be separated from the fitting cavity 24, thereby improving the reliability of the mounting structure 1.

[0130] Please refer to Figure 3 , Figure 4 , Figure 6 , Figure 11 and Figure 12 In some embodiments, the battery device 66 is provided in plurality, each of the battery devices 66 is installed on the mounting rack 64 through the mounting structure 1 at opposite sides thereof in the horizontal direction, the opposite sides of the battery device 66 are respectively provided with guide rails 68, and the first support rail 10 is installed on the mounting rack 64, and the guide rails 68 are adapted to be slidably fitted into the sliding groove 22. Alternatively, the opposite sides of the battery device 66 are respectively provided with the mounting structure 1, and the mounting rack 64 is provided with the guide rails 68, and the guide rails 68 are adapted to be slidably fitted into the sliding groove 22.

[0131] It can be seen that each of the battery devices 66 is installed on the mounting rack 64 through the mounting structure 1 at opposite sides thereof in the horizontal direction, and the above-mentioned mounting structure 1 has good insulation performance, thereby facilitating the electrical isolation between the battery device 66 and the mounting rack 64, and making the energy storage device 2 more stable during operation.

[0132] In addition, the guide rails 68 can be located on opposite sides of the battery device 66, the first support rail 10 is installed on the mounting frame 64, the guide rails 68 are in sliding fit with the sliding grooves 22 of the second support rail 20, and the second support rail 20 can separate the guide rails 68 from the first support rail 10, and the matching cavities 24 can separate the guide rails 68 from the first fasteners 30, so as to facilitate electrical isolation of the battery device 66 and the mounting frame 64; or, the mounting structure 1 is located on opposite ends of the battery device 66, the guide rails 68 are installed on the mounting frame 64, and the guide rails 68 are in sliding fit with the sliding grooves 22 of the second support rail 10, so as to facilitate electrical isolation of the battery device 66 and the mounting frame 64, and make the positions of the guide rails 68 and the mounting structure 1 more flexible, thereby facilitating different installation environments.

[0133] Please refer to Figures 7-12 In some embodiments, the second support rail 20 includes a third plate body 25 and a fourth plate body 26, the upper and lower ends of the third plate body 25 are respectively bent and connected with the fourth plate body 26, so as to define a second mounting groove 28, part of the second mounting groove 28 participates in forming the sliding groove 22, and another part of the second mounting groove 28 participates in forming the matching cavity 24; the mounting structure 1 includes a plurality of first pressing members 29, the plurality of first pressing members 29 are arranged in the second mounting groove 28 and are spaced apart along the length direction, the first pressing member 29 is arranged on the upper fourth plate body 26 and is spaced apart from the lower fourth plate body 26, and the upper surface of the guide rail 68 is protrudingly provided with a plurality of second pressing members 680 which are spaced apart along the length direction, each second pressing member 680 is in upward and downward abutment with a corresponding first pressing member 29, and the spacing between the plurality of first pressing members 29 and the lower fourth plate body 26 decreases in the length direction along the direction from the second end 262 of the second support rail 20 to the first end 260 (for example, H1 Figure 7 H2 Figure 11 H3

[0134] It can be seen that each second pressing member 680 is in upward and downward abutment with a corresponding first pressing member 29, the protrudingly arranged second pressing member 680 can better contact the first pressing member 29, so that the battery device 66 can be more stable after being installed on the mounting frame 64 through the guide rail 68 and the mounting structure 1, and the protrudingly arranged second pressing member 680 reduces the size requirement for the guide rail 68, that is, even if the size of the guide rail 68 in the upward and downward direction is slightly smaller than the size of the sliding groove 22 in the upward and downward direction, the protrudingly arranged second pressing member 680 can normally contact the first pressing member 29, thereby facilitating the versatility of the mounting structure 1.

[0135] In addition, the spacing between the plurality of first pressing members 29 and the lower fourth plate body 26 decreases in the length direction along the second end 262 of the second support rail 20 towards the first end 260, and the protruding height of the plurality of second pressing members 680 decreases, so that when the first pressing members 29 contact the second pressing members 680, the first pressing members 29 can apply an extrusion force to the guide rail 68 towards the lower fourth plate body 26. When the guide rail 68 moves along the second end 262 of the second support rail 20 towards the first end 260, the guide rail 68 gradually contacts the first pressing members 29 with gradually increasing protruding height, and the second pressing members 680 with gradually decreasing protruding height gradually contact the first pressing members with gradually increasing protruding height in one-to-one correspondence as the guide rail 68 moves, so that the protruding heights of the plurality of first pressing members 29 and the second pressing members 680 can be more adaptive, and the extrusion force of the first pressing members 29 and the second pressing members 680 can be relatively stable, facilitating assembly and disassembly of the guide rail 68 and the sliding groove 22.

[0136] Please refer to Figure 11 In some embodiments, the guide rail 68 is an insulating material piece, which can further reduce the possibility of electrical leakage of the battery device 66 and the mounting rack 64; or the guide rail 68 includes a metal support piece 682 and a protective piece 684, the protective piece 684 is an insulating material piece and at least covers the bottom side of the metal support piece 682. When the battery device 66 is installed in the mounting rack 64, the friction between the bottom of the guide rail 68 and the sliding groove 22 is large due to the weight of the battery device 66, and the bottom of the guide rail 68 and the sliding groove 22 are prone to wear. By providing the protective piece 684 made of insulating material on the bottom of the guide rail 68, the wear between the bottom of the guide rail 68 and the sliding groove 22 is reduced, and even if the sliding groove 22 is worn due to the large friction, the protective piece 684 can still protect the guide rail 68 from directly contacting the worn sliding groove 22, so that the battery device 66 and the mounting rack 64 have good insulation effect, and the reliability of the energy storage system 3 is improved. It can be understood that the protective piece 684 can also cover the side of the metal support piece 682 to further improve the insulation performance between the guide rail 68 and the sliding groove 22.

[0137] Optionally, the protective piece 684 is made of POM or other insulating material with good wear resistance and pressure resistance, and is installed on the bottom side of the metal support piece 682 by pasting or fastening, so as to reduce the wear of the sliding groove 22 and prolong the service life of the sliding groove 22.

[0138] In a second aspect, the embodiments of the present application provide an energy storage system 3, which includes a power conversion device 70 and the energy storage device 2 of the first aspect, and the power conversion device 70 is used to electrically connect a power generation device 72 and the energy storage device 2.

[0139] In the technical solution, the power conversion device 70 is electrically connected to the power generation device 72 and the energy storage device 2, so that the energy storage device 2 and the power generation device 72 exchange energy, and the energy storage device 2 can be installed on the mounting structure 1, so that the possibility of electrical leakage between the battery device 66 and the mounting frame 64 is reduced. Therefore, the stability of the energy storage system 3 in operation can be improved.

[0140] Please refer to Figure 13 In some embodiments, the energy storage system 3 can include one or more energy storage devices 2 and a power conversion device 70 (PCS) connected between the power generation device 72 and the energy storage device 2. The power generation device 72 is used to generate electric energy, and the electric energy generated by the power generation device 72 can be stored in the energy storage device 2 through the power conversion device 70. As an example, the power generation device 72 can be a solar panel, a water power generation device, a fire power generation device, a wind power generation device, etc. The specific type of the power generation device 72 is not limited in the present application.

[0141] In a third aspect, the embodiments of the present application provide a power consumption device 4, which includes the energy storage device 2 of the first aspect or the energy storage system 3 of the second aspect, and the battery device 66 is used to store or provide electric energy.

[0142] In the technical solution, the power consumption device 4 includes the energy storage device 2 or the energy storage system 3, and the battery device 66 is used to store or provide electric energy. The energy storage device 2 and the energy storage system 3 have good stability. Therefore, the battery device 66 is more stable in use, and the stability of the power consumption device 4 in operation can be improved.

[0143] In a fourth aspect, the embodiments of the present application provide a charging network 5, which includes the charging pile 74 and the energy storage device 2 of the first aspect or the energy storage system 3 of the second aspect, and the energy storage device 2 is used to provide electric energy for the charging pile 74.

[0144] In the technical solution, the charging network 5 includes the charging pile 74 and the energy storage device 2, or the charging network 5 includes the charging pile 74 and the energy storage system 3, and the energy storage device 2 is used to provide electric energy for the charging pile 74. The energy storage device 2 has good stability. Therefore, the energy storage device 2 provides electric energy for the charging pile 74 more stably, and the stability of the charging network 5 in operation can be improved.

[0145] Please refer to Figure 14In some embodiments, the charging pile 74 is electrically connected to the battery device 66 in the energy storage device 2 through a cable, and the battery device 66 can provide the stored electrical energy to the charging pile 74. The charging pile 74 has one or more connectors 73 for connecting to the electrical device 4 (such as a vehicle) to charge the electrical device 4. It can be understood that the energy storage device 2 can be located inside the charging pile 74 (for example, a charging and storage integrated machine), or outside the charging pile 74.

[0146] Please refer again to Figures 3-12 The energy storage device 2 of the specific embodiments of the present application is described, which includes a cabinet 60, a mounting frame 64, a plurality of battery devices 66, and a mounting structure 1. The cabinet 60 has a mounting cavity 62, and the mounting frame 64 is arranged in the mounting cavity 62. Each battery device 66 is mounted on the mounting frame 64 by the mounting structure 1 on the opposite sides in the horizontal direction.

[0147] The mounting structure 1 includes a first support rail 10, a second support rail 20, a first fastener 30, a second fastener 32, a first pressing member 29, a first stop member 14, a second stop member 40, a third stop member 42, a third support rail 50, and a shielding member 48.

[0148] The first support rail 10 is a metal material, and the first support rail 10 is adapted to be mounted on the mounting frame 64. The first support rail 10 includes a first plate body 15 and a second plate body 16. The second plate body 16 is connected to the width ends of the first plate body 15 by bending, so that the first support rail 10 defines a first mounting slot 17. A first mounting hole 12 is formed on the first plate body 15.

[0149] The side of the second support rail 20 facing away from the first support rail 10 defines a sliding groove 22, and the groove wall of the sliding groove 22 is formed with a clearance hole 220. The second support rail 20 also defines a fitting cavity 24, which is spaced apart from the side of the sliding groove 22 facing the first support rail 10. The first cavity wall 240 of the fitting cavity 24 facing the first support rail 10 is formed with a second mounting hole 242. The second support rail 20 is a piece of insulating material, and the fitting cavity 24 has a second cavity wall 244 arranged opposite the first cavity wall 240. The second cavity wall 244 is configured as the groove wall of the sliding groove 22 formed with the clearance hole 220. The second support rail 20 includes a third plate body 25, a fourth plate body 26, and a partition 27. The widthwise ends of the third plate body 25 are bent to connect the fourth plate body 26, so that the second support rail 20 defines a second mounting groove 28. The partition 27 is arranged in the second mounting groove 28 and separates the second mounting groove 28 into the sliding groove 22 and the fitting cavity 24. The second mounting hole 242 is formed in the third plate body 25, and the clearance hole 220 is formed in the partition 27. The fourth plate body 26 is fixedly connected to the second plate body 16. The second support rail 20 also includes a shielding flange 21, which is bent to connect to the end of the fourth plate body 26 away from the third plate body 25 and covers the end of the second plate body 16.

[0150] The clearance hole 220 is opposite the second mounting hole 242, so that the first fastener 30 is adapted to pass through the first mounting hole 12 and the second mounting hole 242 through the clearance hole 220 and fix the first support rail 10 and the second support rail 20. The end of the first fastener 30 is located in the fitting cavity 24, and the first fastener 30 is spaced apart from the clearance hole 220 in the axial direction of the first mounting hole 12. The clearance hole 220, the first mounting hole 12, and the second mounting hole 242 are each a plurality of holes. The plurality of second mounting holes 242 are spaced apart along the length direction of the second support rail 20. Each first mounting hole 12 corresponds to one clearance hole 220 and one second mounting hole 242.

[0151] The first support rail 10 has a first stopper 14 at one end of its length. The second support rail 20 is stopped by the first stopper 14 in the length direction to limit the relative movement of the first support rail 10 and the second support rail 20 in the length direction. The first stopper 14 covers the open end of the fitting cavity 24 corresponding to the first end 260 of the second support rail 20 in the length direction.

[0152] The first pressing member 29 is an insulating material member, and is arranged in the second mounting groove 28 and on one of the fourth plate bodies 26. The first pressing member 29 is spaced apart from the other fourth plate body 26, and is adapted to apply a pressing force to the guide rail 68 fitted in the sliding groove 22 towards the other fourth plate body 26. The first pressing member 29 is fixed to one of the fourth plate bodies 26 by the second fastener 32, which is arranged through the second plate body 16 to fix the first pressing member 29 to the second plate body 16. The first pressing member 29 covers the second fastener 32. The first pressing member 29 is a plurality of members and is spaced apart along the length direction. In the direction of the third stop member 42 towards the second stop member 40, the spacing between the plurality of first pressing members 29 and the other fourth plate body 26 decreases. The side of the first pressing member 29 towards the other fourth plate body 26 is provided with a first buffer member 290.

[0153] The second stop member 40 is an insulating material member, and is arranged in the second mounting groove 28 and on the first end 260 of the other fourth plate body 26 in the length direction. The second stop member 40 is adapted to abut against the guide rail 68 fitted in the sliding groove 22 to limit the movement of the guide rail 68 in the length direction. The second stop member 40 is fixed to the other fourth plate body 26 by the third fastener 34, which is arranged through the second plate body 16 to fix the second stop member 40 to the second plate body 16. The second stop member 40 covers the third fastener 34. The side of the second stop member 40 towards the center of the sliding groove 22 is provided with a second buffer member 46.

[0154] The third stop member 42 is an insulating material member, and is arranged in the second mounting groove 28 and on the second end 262 of the fourth plate body 26 in the length direction. At least one of the first support rail 10 and the second support rail 20 is detachably connected to the third stop member 42. The third stop member 42 is adapted to abut against the guide rail 68 fitted in the sliding groove 22 to limit the movement of the guide rail 68 in the length direction. The side of the third stop member 42 is connected to a mounting plate 420, which covers the open end of the fitting cavity 24 corresponding to the second end 262 of the second support rail 20 in the length direction. The end of one of the second plate bodies 16 is connected to a first mounting flange 160. The side of the other second plate body 16 away from the first mounting groove 17 supports a third support rail 50, which is fixed to the first support rail 10. The end of the third support rail 50 is connected to a second mounting flange 52. The first mounting flange 160 and the second mounting flange 52 are detachably connected to the mounting plate 420. The side of the third stop member 42 towards the center of the sliding groove 22 is provided with a second buffer member 46.

[0155] The third support rail 50 is supported on the lower side of the first support rail 10, and is fixed to the first support rail 10. The first support rail 10 includes a first plate body 15 and a second plate body 16. The lower end of the first plate body 15 is bent to connect the second plate body 16, so that the first support rail 10 defines a first mounting slot 17 for accommodating the second support rail 20. The first mounting hole 12 is formed in the first plate body 15. The third support rail 50 includes a fifth plate body 54 and a sixth plate body 56 which are connected by bending. The fifth plate body 54 is arranged in parallel with the second plate body 16 and is connected to the lower side of the second plate body 16. The sixth plate body 56 is flush with the first plate body 15, and the third mounting hole 57 is formed in the sixth plate body 56.

[0156] The shielding piece 48 is made of PC material, has insulation characteristics, is arranged in the matching cavity 24, and is located between the first fastener 30 and the groove wall of the sliding groove 22 to separate the first fastener 30 and the avoiding through hole 220. The shielding piece 48 is made of insulating material, the second end 262 of the matching cavity 24 in the length direction of the first support rail 10 is open to form an opening 2622, the shielding piece 48 is adapted to be matched in the matching cavity 24 through the opening 2622, the matching cavity 24 has a second cavity wall 244 arranged opposite to the first cavity wall 240, the shielding piece 48 includes a seventh plate body 480 and an eighth plate body 482, the seventh plate body 480 is in abutment with the second cavity wall 244 and is located between the first fastener 30 and the avoiding through hole 220, the width of the seventh plate body 480 is bent to connect the eighth plate body 482 at both ends, each eighth plate body 482 extends obliquely to the first cavity wall 240 on the side where the first mounting hole 12 is located, and the two eighth plate bodies 482 are away from each other in the direction of the side where the first mounting hole 12 is located.

[0157] The mounting structure 1 is mounted on the mounting frame 64, and the guide rail 68 is adapted to be slidably matched in the sliding groove 22. The upper surface of the guide rail 68 protrudes a plurality of second pressing pieces 680 which are arranged at intervals in the length direction. Each second pressing piece 680 is in abutment with a corresponding first pressing piece 29 in the up-down direction. In the length direction, the protruding height of the plurality of second pressing pieces 680 decreases in the direction from the second end 262 of the second support rail 20 to the first end 260. The guide rail 68 includes a metal support piece 682 and a protection piece 684. The protection piece 684 is made of insulating material and at least covers the bottom side of the metal support piece 682.

[0158] In the technical scheme, the sliding groove 22 has good insulation performance, the guide rail 68 is matched in the sliding groove 22, electrical isolation between the battery device 66 and the mounting frame 64 can be realized, the reliability of the operation of the energy storage device 2 is improved, the movement of the guide rail 68 in the length direction of the sliding groove 22 can be limited through the second stopper 40 and the third stopper 42, the movement of the guide rail 68 in the height direction in the sliding groove 22 can be limited through the first pressing part 29 and the second pressing part 680, the guide rail 68 is more stable in the sliding groove 22, and the stability of the operation of the energy storage device 2 is improved.

[0159] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0160] The preferred embodiments of the present application have been described above with reference to the drawings, but the present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An energy storage device, characterized by, The energy storage device comprises a cabinet, a mounting frame, a battery device and a mounting structure, the cabinet has a mounting cavity, the mounting frame and the battery device are arranged in the mounting cavity, the battery device is mounted on the mounting frame through the mounting structure, and the mounting structure comprises: a first support rail mounted on one of the mounting frame and the battery device, and a first mounting hole formed on the first support rail; a second support rail, a side of the second support rail away from the first support rail defines a sliding groove, an avoiding through hole is formed on a groove wall of the sliding groove, the second support rail further defines a matching cavity, the matching cavity is arranged on a side of the sliding groove facing the first mounting hole, a second mounting hole is formed on a first cavity wall of the matching cavity facing the first mounting hole, the second support rail is made of insulating material, and the other one of the mounting frame and the battery device is matched with the sliding groove; a first fastener, the avoiding through hole is opposite to the second mounting hole, so that the first fastener is adapted to pass through the avoiding through hole to be arranged in the first mounting hole and the second mounting hole, and the first support rail and the second support rail are fixed, an end of the first fastener is located in the matching cavity, and the first fastener and the avoiding through hole are arranged in an axial direction of the first mounting hole.

2. The energy storage device of claim 1, wherein, The avoiding through hole, the first mounting hole and the second mounting hole are respectively a plurality of, a plurality of second mounting holes are arranged in a length direction of the second support rail, and each first mounting hole corresponds to one avoiding through hole and one second mounting hole.

3. The energy storage device of claim 1, wherein, One of the first support rail and the second support rail is provided with a first stopper at one end in the length direction, the other one of the first support rail and the second support rail abuts against the first stopper in the length direction, so as to limit the relative movement of the first support rail and the second support rail in the length direction; and / or the first stopper blocks an open end of the matching cavity corresponding to the first end of the second support rail in the length direction.

4. The energy storage device according to claim 1, wherein the first support rail comprises a first plate body and a second plate body, at least one end of the first plate body in a width direction is connected to the second plate body through bending, so that the first support rail defines a first mounting groove, and the first mounting hole is formed on the first plate body, the second support rail comprises a third plate body, a fourth plate body and a separation piece, at least one end of the third plate body in a width direction is connected to the fourth plate body through bending, so that the second support rail defines a second mounting groove, the separation piece is arranged in the second mounting groove and separates the second mounting groove into the sliding groove and the matching cavity, the second mounting hole is formed on the third plate body, the avoiding through hole is formed on the separation piece, and the fourth plate body is fixedly connected to the second plate body.

5. The energy storage device of claim 4, wherein, The second plate body and the fourth plate body are two, the partition connects two fourth plate bodies, the mounting structure further comprises at least one of a first pressing piece, a second stop piece and a third stop piece, and the at least one of the first pressing piece, the second stop piece and the third stop piece is an insulating material piece, The first pressing piece is provided on the second mounting groove and on one of the fourth plate bodies, the first pressing piece is spaced apart from the other fourth plate body, and is adapted to apply a pressing force to the guide rail fitted in the sliding groove towards the other fourth plate body; The second stop piece is provided on the second mounting groove and on the first end of the other fourth plate body in the length direction, and the second stop piece is adapted to abut with the guide rail fitted in the sliding groove to limit the movement of the guide rail in the length direction; The third stop piece is provided on the second mounting groove and on the second end of the fourth plate body in the length direction, at least one of the first support rail and the second support rail is detachably connected with the third stop piece, and the third stop piece is adapted to abut with the guide rail fitted in the sliding groove to limit the movement of the guide rail in the length direction.

6. The energy storage device of claim 5, wherein The mounting structure comprises a first pressing piece, the first pressing piece is fixed on one of the fourth plate bodies by a second fastener, the second fastener is provided through the second plate body to fix the first pressing piece and the second plate body, and the first pressing piece covers the second fastener; And / or The mounting structure comprises a second stop piece, the second stop piece is fixed on the other fourth plate body by a third fastener, the third fastener is provided through the second plate body to fix the second stop piece and the second plate body, and the second stop piece covers the third fastener.

7. The energy storage device of claim 5, wherein, The mounting structure comprises a third stop piece, one side of the third stop piece is connected with a mounting plate, the mounting plate shields the open end of the fitting cavity corresponding to the second end of the second support rail in the length direction, The end of each second plate body is connected with a first mounting flange, each first mounting flange is detachably connected with the mounting plate; or The end of one of the second plate bodies is connected with a first mounting flange, the side of the other second plate body away from the first mounting groove is supported by a third support rail, the third support rail is fixed with the first support rail, the end of the third support rail is connected with a second mounting flange, and the first mounting flange and the second mounting flange are respectively detachably connected with the mounting plate.

8. The energy storage device of claim 5, wherein, The mounting structure comprises a first pressing piece, a second stop piece and a third stop piece, the first pressing piece is a plurality of and is spaced apart in the length direction, In the direction of the third stop piece towards the second stop piece, the spacing between the plurality of first pressing pieces and the other fourth plate body decreases.

9. The energy storage device of claim 5, wherein The mounting structure comprises a first pressing piece, one side of the first pressing piece towards the other fourth plate body is provided with a first buffer piece; and / or The mounting structure comprises a second stopper and a third stopper, at least one of the second stopper and the third stopper is provided with a second buffer towards a side of the center of the sliding groove.

10. The energy storage device of claim 4, wherein, The second support rail further comprises a shielding flange, which is connected to one end of the fourth plate body away from the third plate body by bending, and covers the end of the second plate body.

11. The energy storage device of claim 1, wherein, The lower side of the first support rail supports a third support rail, which is fixed with the first support rail, and the second support rail and the third support rail are located on different sides of the first support rail.

12. The energy storage device of claim 11, wherein, The first support rail comprises a first plate body and a second plate body, the lower end of the first plate body is connected to the second plate body by bending, so that the first support rail defines a first mounting slot for accommodating the second support rail, and the first mounting hole is formed on the first plate body, The third support rail comprises a fifth plate body and a sixth plate body connected by bending, the fifth plate body is arranged in parallel with the second plate body and connected to the lower side of the second plate body, and the sixth plate body is flush with the first plate body, and the third mounting hole is formed on the sixth plate body.

13. The energy storage device of any one of claims 1-12, wherein, Further comprising: A shielding member is arranged in the matching cavity and located between the first fastener and the groove wall of the sliding groove to separate the first fastener and the avoiding through hole, and the shielding member is an insulating material member.

14. The energy storage device of claim 13, wherein, The second end of the matching cavity in the length direction of the first support rail is open to form an opening, and the shielding member is adapted to be matched in the matching cavity through the opening.

15. The energy storage device of claim 13, wherein, The matching cavity has a second cavity wall arranged opposite to the first cavity wall, and the shielding member comprises: A seventh plate body is abutted with the second cavity wall and located between the first fastener and the avoiding through hole; An eighth plate body is connected to the width ends of the seventh plate body by bending, each eighth plate body is inclined to extend to abut with the first cavity wall towards the side where the first mounting hole is located, and the two eighth plate bodies are away from each other in the direction towards the side where the first mounting hole is located.

16. The energy storage device of any one of claims 1-12, wherein, The battery device is a plurality of, each of the battery device is installed on the mounting frame by the mounting structure on the opposite sides in the horizontal direction, The opposite sides of the battery device are respectively provided with guide rails, the first support rail is installed on the mounting frame, and the guide rails are adapted to be slidably matched in the sliding groove; or The opposite sides of the battery device are respectively provided with the mounting structure, and the mounting frame is provided with guide rails, and the guide rails are adapted to be slidably matched in the sliding groove.

17. The energy storage device of claim 16, wherein The second support rail comprises a third plate body and a fourth plate body, the upper and lower ends of the third plate body are connected to the fourth plate body by bending, so that the second support rail defines a second mounting slot, the mounting structure comprises a plurality of first pressing members, the plurality of first pressing members are arranged in the second mounting slot and spaced apart along the length direction, the first pressing members are arranged on the upper fourth plate body and spaced apart from the lower fourth plate body, The upper surface of the guide rail is provided with a plurality of second pressing members arranged along the length direction at intervals, each of the second pressing members abutting against the corresponding first pressing member upward and downward, In the length direction, the spacing between the first pressing members and the lower fourth plate body decreases, and the protruding height of the second pressing members decreases, from the second end of the second support rail toward the first end.

18. The energy storage device of claim 16, wherein, The guide rail is an insulating material piece; alternatively, the guide rail comprises a metal support piece and a protective piece, the protective piece being an insulating material piece and at least covering the bottom side of the metal support piece.

19. An energy storage system characterized by, The energy storage device according to any one of claims 1-18, wherein the power conversion device is electrically connected to a power generation device.

20. An electrical device, comprising: The battery device according to any one of claims 1-18 or the energy storage system according to claim 19, wherein the battery device is used for storing or providing electric energy.

21. A charging network characterized in that, The charging pile and the energy storage device according to any one of claims 1-18 or the energy storage system according to claim 19, wherein the energy storage device is used for providing electric energy for the charging pile.

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