Combined energy storage device

Abstract

The present application relates to the technical field of battery packs, and in particular to a combined energy storage device. The combined energy storage device includes a plurality of single battery cabinets and a plurality of energy storage batteries, each of which includes a detachable support frame, and the support frame encloses an internal energy storage space, in which the energy storage battery is placed; adjacent single battery cabinets are locked and fixedly connected by a locking structure. The technical problems of the existing large energy storage batteries and distribution cabinets, such as the inconvenience of transportation, the large space occupied during transportation, the difficulty of loading and unloading, and the high labor intensity, are solved.

Description

Technical Field

[0001] The present application relates to the technical field of battery packs, and in particular to a combined energy storage device. Background Art

[0002] Temporary power systems are a good way to provide power for short-term projects such as construction sites, outdoor entertainment venues, mining operations, etc. They can even be used as a backup power source in the event of a natural disaster. In particular, entertainment activities such as music festivals and food festivals held at outdoor attractions where power supply is difficult to obtain require the use of a large number of large-scale energy storage batteries as energy to power on-site lighting, communications, entertainment facilities and other equipment.

[0003] Currently, energy storage batteries are often used in combination with devices such as distribution cabinets. However, since large energy storage batteries and supporting distribution cabinets are large and heavy equipment, and energy storage batteries and distribution cabinets need to be transported in categories during transportation, this will not only take up a large transportation space, but also often require multiple vehicles for classified transportation, which is troublesome to transport. At the same time, large-volume and heavy equipment will also make loading and unloading too difficult and labor-intensive. Summary of the invention

[0004] The purpose of this application is to provide a combined energy storage device to solve the technical problems of existing large energy storage batteries and distribution cabinets, such as the inconvenience of transportation, large space occupied during transportation, difficulty in loading and unloading, and high labor intensity.

[0005] The present application provides a combined energy storage device, comprising:

[0006] A plurality of single battery cabinets and a plurality of energy storage batteries, each of the single battery cabinets comprises a detachable support frame, and the support frame encloses an internal energy storage space, and the energy storage battery is placed in the internal energy storage space;

[0007] The adjacent single battery cabinets are locked and fixedly connected via a locking structure.

[0008] Furthermore, the support frame includes a top frame and a bottom frame that are opposite to each other, and four longitudinal support rods that are opposite to each other in pairs;

[0009] Each of the longitudinal support rods is separately arranged, and includes an upper connecting rod and a lower connecting rod. The lower end of the upper connecting rod and the upper end of the lower connecting rod are detachably fixedly connected, the upper end of each upper connecting rod is detachably fixedly connected to the top frame, and the lower end of each lower connecting rod is detachably fixedly connected to the bottom frame.

[0010] Furthermore, each of the upper connecting rods is provided with a first long sliding hole near its upper end, and each of the lower connecting rods is provided with a second long sliding hole near its lower end;

[0011] The four corners of the top frame and the four corners of the bottom frame are respectively provided with positioning slot boxes, and positioning slide bars are provided in the positioning slot boxes. The positioning slide bars can pass through the first long slide hole or the second long slide hole for fixed connection.

[0012] Furthermore, a first connecting hole is provided on the upper connecting rod near its lower end, and a second connecting hole is provided on the lower connecting rod near its upper end. The lower end of the upper connecting rod and the upper end of the lower connecting rod are staggered and overlapped so that the first connecting hole and the second connecting hole are aligned and hingedly fixed by a hinged tube.

[0013] Furthermore, an auxiliary positioning rod is connected between at least one group of two opposite longitudinal support rods of each support frame;

[0014] One end of the auxiliary positioning rod sequentially passes through the first connecting hole and the second connecting hole of one of the longitudinal support rods that are relatively arranged, and then passes through the limiting hole of the limiting clamping plate and is locked and fixed by the first locking nut; the other end of the auxiliary positioning rod sequentially passes through the first connecting hole and the second connecting hole of the other longitudinal support rod that is relatively arranged, and then passes through the limiting hole of the other limiting clamping plate and is locked and fixed by the other first locking nut.

[0015] Furthermore, the limiting clamping plate is provided with positioning pins on the upper and lower sides of the limiting hole, respectively. Correspondingly, the upper connecting rod is provided with a first auxiliary positioning hole corresponding to one of the positioning pins near the first connecting hole, and the lower connecting rod is provided with a second auxiliary positioning hole corresponding to the other positioning pin near the second connecting hole.

[0016] Furthermore, the combined energy storage device also includes a combined base, the top of which is fixedly connected to a plurality of support platforms arranged in rows, and the top of the support platform is fixedly connected to a plurality of the single cell cabinets stacked in sequence from top to bottom.

[0017] Furthermore, the locking structure includes two locking clamps arranged opposite to each other and locking rods whose two ends are respectively fixedly connected to the two locking clamps, and the two locking clamps are respectively provided with four locking pins at their four corners;

[0018] Each of the upper connecting rods and each of the lower connecting rods is provided with a locking hole;

[0019] The multiple locking structures lock and connect the multiple single battery cabinets in rows and columns.

[0020] Furthermore, the two locking holes on the two lower connecting rods on the same side of each two adjacent single battery cabinets in the transverse direction and the two locking holes on the two upper connecting rods on the same side of the two adjacent single battery cabinets below the two single battery cabinets are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of the same locking structure, and the locking rod of the same locking structure is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets; and / or

[0021] The two locking holes on the two upper connecting rods on the same side of each two adjacent single battery cabinets in the transverse direction and the two locking holes on the two lower connecting rods on the same side of the two adjacent single battery cabinets above the two single battery cabinets are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of another locking structure, and the locking rod of the locking structure is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets; and / or

[0022] Base locking holes are respectively provided on the two end sides close to the top on the opposite sides of the support platform, the two base locking holes on the same side of the two adjacent support platforms, and the two locking holes on the two lower connecting rods on the same side of the two single battery cabinets respectively fixedly connected to the tops of the two support platforms are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of the same locking structure, and the locking rod of the same locking structure is arranged to pass through the middle gap surrounded by the two adjacent single battery cabinets and the two adjacent support platforms.

[0023] Furthermore, the combined energy storage device further includes a water cooling assembly, and the water cooling assembly includes:

[0024] A delivery main pipe and a drainage main pipe fixedly engaged with the plurality of support platforms arranged in a row on the combined base on opposite sides, wherein a plurality of delivery diversion pipes and a plurality of drainage diversion pipes are respectively arranged at intervals on the delivery main pipe and the drainage main pipe; and

[0025] A plurality of water cooling plates are respectively arranged between the bottom frame of one of the single battery cabinets and the top frame of the other of the single battery cabinets, between the top frame of one of the single battery cabinets and the bottom frame of the other of the single battery cabinets, and between the top of each of the support platforms and the bottom frame of the single battery cabinet adjacent to the top thereof;

[0026] A cooling coil is fixedly installed inside each of the water-cooled plates, and both ports of the cooling coil are arranged to extend outside the water-cooled plate. One of the ports is connected to the delivery main pipe through the corresponding delivery diversion pipe, and the other port is connected to the drainage main pipe through the corresponding drainage diversion pipe.

[0027] Furthermore, the delivery diverter pipe and the drainage diverter pipe are both arranged in sections, the delivery diverter pipe is formed by a plurality of delivery diverter pipes being fixedly connected by threads in sequence from top to bottom, and the drainage diverter pipe is formed by a plurality of drainage diverter pipes being fixedly connected by threads in sequence from top to bottom;

[0028] The locking rods of each locking structure are spaced apart from each other by a vertically arranged delivery branch pipe and a vertically arranged drainage branch pipe, and the two ports of each water-cooling plate are respectively connected to the first interface of the delivery branch pipe and the second interface of the drainage branch pipe adjacent thereto.

[0029] Furthermore, the top frame and the bottom frame of each single battery cabinet are provided with a concave water plate placement groove, and the water plate placement groove is provided with a water plate through hole, and the top of each support platform is provided with a concave base water plate placement groove;

[0030] The top frame and the bottom frame of each single battery cabinet and the top frame of each support platform are provided with at least two water pipe grooves for positioning the two end sections of the cooling coil. One end of the water pipe groove is connected to the water plate placement groove, and the other end is connected to the outside of the single battery cabinet and is used to be connected to the delivery branch pipe and the drainage branch pipe.

[0031] Furthermore, each of the locking clamps is provided with a clearance groove at the top and bottom to facilitate the passage of the delivery branch pipe and the drainage branch pipe; and / or

[0032] The combined base is provided with a plurality of spaced-apart water pipe placement holders on opposite sides of a plurality of the support platforms arranged in a row, respectively, for respectively engaging the delivery main pipe and the drainage main pipe.

[0033] Furthermore, the combined base includes a first row of combined bases and a second row of combined bases connected side by side, the top of the first row of combined bases is fixedly connected to a plurality of support platforms arranged in a row, the top of the second row of combined bases is slidingly or rollingly connected to a scissors-type lift, the scissors-type lift moves along the extension direction of the rows of the plurality of support platforms, the top of the scissors-type lift is drivingly connected to a lifting platform, and the lifting platform is provided with a battery placement position for placing energy storage batteries.

[0034] Furthermore, the top of the second row of combined bases is provided with a guide groove extending along the row extension direction of the plurality of support platforms, which is used to match the universal wheel or sliding block at the bottom of the scissor lift, and the guide groove is provided with a positioning groove corresponding to the position of each support platform; and / or

[0035] One of the two opposite sides of the top of the lifting platform is respectively provided with a transport pallet, and the other two opposite sides of the top of the lifting platform are respectively provided with transport slots with different positions to control the distance between the two transport pallets, and the battery placement position is set between the two transport pallets.

[0036] Compared with the prior art, the combined energy storage device provided by the present application includes a plurality of single battery cabinets and a plurality of energy storage batteries. The plurality of energy storage batteries are arranged one by one in the internal energy storage space surrounded by the support frames of the plurality of single battery cabinets. The support frames of the single battery cabinets are detachable. During the transportation process, the combined energy storage device provided by the present application not only subdivides the large energy storage battery into a plurality of small single battery cabinets, but also the support frames of each single battery cabinet can be further disassembled and assembled, further refined and compressed into a plurality of parts for classified transportation, and then when used, the single battery cabinets are combined according to the required on-site needs and the energy storage batteries are loaded for use, which greatly reduces the transportation pressure, and the assembled single battery cabinets to be used can be locked and fixedly connected between the adjacent single battery cabinets through the locking structure. Not only does it greatly reduce the transportation pressure, facilitate transportation, greatly reduce the occupied space during transportation, reduce the number of vehicles required for transportation, but also greatly reduce the difficulty and labor intensity of loading and unloading, and it is also convenient to assemble and lock each other for use, improve the integrity, and ensure easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the overall structure of the combined energy storage device provided in the embodiment of the present application;

[0039] Figure 2 A schematic diagram of the structure of a single battery cabinet provided in an embodiment of the present application;

[0040] Figure 3 A partial structural schematic diagram of a single battery cabinet provided in an embodiment of the present application;

[0041] Figure 4A schematic diagram of the structure of the longitudinal support rod provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of the locking structure provided in the embodiment of the present application Figure 1 ;

[0043] Figure 6 A schematic diagram of the locking structure provided in the embodiment of the present application Figure 2 ;

[0044] Figure 7 A schematic diagram of the locking structure provided in the embodiment of the present application Figure 3 ;

[0045] Figure 8 A schematic diagram of a portion of the structure of the combined base and the support platform provided in an embodiment of the present application;

[0046] Fig. 9 A schematic diagram of the structure of the delivery main pipe and the drainage main pipe provided in the embodiment of the present application;

[0047] Fig.10 A schematic diagram of the structure of the water cooling plate provided in the embodiment of the present application;

[0048] Fig.11 This is a schematic diagram of the structure of the scissor lift provided in an embodiment of the present application.

[0049] Reference numerals:

[0050] 10-monocell cabinet;

[0051] 11-Energy storage battery;

[0052] 12- Support frame;

[0053] 121-top frame;

[0054] 122- bottom frame;

[0055] 1221-battery card board;

[0056] 1222-battery slot;

[0057] 123-longitudinal support rod;

[0058] 124-upper connecting rod;

[0059] 1241-first connecting hole;

[0060] 1242-first auxiliary positioning hole;

[0061] 1243-first long sliding hole;

[0062] 125-lower connecting rod;

[0063] 1251-second longest slide hole;

[0064] 126-locking hole;

[0065] 127-water plate placement slot;

[0066] 1271- water plate through hole;

[0067] 128- water pipe groove;

[0068] 13- articulated tube;

[0069] 141- auxiliary positioning rod;

[0070] 142-limiting card plate;

[0071] 1421-positioning pin;

[0072] 143-first locking nut;

[0073] 144-positioning slot box;

[0074] 1441-positioning slide bar;

[0075] 21- first single battery cabinet;

[0076] 22- second single battery cabinet;

[0077] 23- the third single battery cabinet;

[0078] 24- the fourth single battery cabinet;

[0079] 25-Fifth single battery cabinet;

[0080] 26-sixth single battery cabinet;

[0081] 30-locking structure;

[0082] 31-lock the card plate;

[0083] 311-locking staples;

[0084] 312-give-way slot;

[0085] 32-locking lever;

[0086] 331- hexagonal limit block;

[0087] 332-second locking nut;

[0088] 333-Hexagonal auxiliary frame plate;

[0089] 40-combination base;

[0090] 41-first row of combined base;

[0091] 411-Water pipe placement card seat;

[0092] 42-second row of combined base;

[0093] 421-guide groove;

[0094] 4211- positioning groove;

[0095] 43-support platform;

[0096] 431-base locking hole;

[0097] 432-base water plate placement slot;

[0098] 51- water cooling plate;

[0099] 511-port segment;

[0100] 5111 - port;

[0101] 52-assembly frame;

[0102] 61-transportation main pipe;

[0103] 611-transmission shunt pipe interface;

[0104] 612-transportation branch;

[0105] 6121-first interface;

[0106] 62-Drainage main;

[0107] 621- Drainage diversion pipe interface;

[0108] 622-drainage diversion pipe;

[0109] 623-Drainage branch;

[0110] 6231-second interface;

[0111] 63-sealing nut;

[0112] 70- Scissor lift;

[0113] 71-lifting platform;

[0114] 711- transport pallet;

[0115] 712-transport card slot;

[0116] 713-battery placement;

[0117] 72-Universal wheel. DETAILED DESCRIPTION

[0118] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0119] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0120] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0121] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0122] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0123] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0124] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0125] like Figure 1 As shown, an embodiment of the present application provides a combined energy storage device, including a plurality of single cell cabinets 10, each of which includes a detachable support frame 12, and each support frame 12 encloses an internal energy storage space, in which an energy storage battery 11 can be placed, and an energy storage battery 11 can be placed in the internal energy storage space of each single cell cabinet 10. When transported, the detachable support frame 12 can be disassembled into multiple parts for transportation, further compressing the transportation space and facilitating transportation. When in use, it can be assembled into a complete support frame 12 for use, and the adjacent single cell cabinets 10 can be locked and fixedly connected into a whole by a locking structure 30, so as to facilitate the use of the overall battery cabinet.

[0126] Compared with the prior art, the combined energy storage device provided in the embodiment of the present application comprises a plurality of single cell cabinets 10 and a plurality of energy storage batteries 11. The plurality of energy storage batteries 11 are arranged one by one in the internal energy storage space surrounded by the support frames 12 of the plurality of single cell cabinets 10. The support frames 12 of the single cell cabinets 10 are detachably arranged. During transportation, the combined energy storage device provided in the embodiment of the present application not only subdivides the large energy storage battery 11 into a plurality of small single cell cabinets 10, but also the support frames 12 of each single cell cabinet 10 can be further disassembled and assembled, further refined and compressed into a plurality of parts for classified transportation. When in use, the single cell cabinets 10 are combined in quantity according to the on-site requirements and the energy storage batteries 11 are installed for use, which greatly reduces the transportation pressure. Moreover, the assembled single cell cabinets 10 to be used can be locked and fixedly connected between the adjacent single cell cabinets 10 through the locking structure 30. It not only greatly reduces the pressure of transportation, facilitates transportation, greatly reduces the space occupied during transportation, reduces the number of vehicles required for transportation, but also greatly reduces the difficulty and labor intensity of loading and unloading. It is also easy to assemble and lock each other for use, improves the integrity, and ensures ease of use.

[0127] Further, such as Figure 2 and Figure 3 As shown, the aforementioned support frame 12 may specifically include a top frame 121 and a bottom frame 122 that are opposite to each other up and down, and four longitudinal support rods 123 that are opposite to each other in pairs, forming a frame structure similar to a cube or a cuboid.

[0128] Preferably, each longitudinal support rod 123 can be separately provided, each including an upper connecting rod 124 and a lower connecting rod 125, the lower end of the upper connecting rod 124 and the upper end of the lower connecting rod 125 are detachably fixedly connected, the upper end of each upper connecting rod 124 is detachably fixedly connected to the top frame 121, and the lower end of each lower connecting rod 125 is detachably fixedly connected to the bottom frame 122. This facilitates further disassembly and convenient split connection after the energy storage battery 11 is placed.

[0129] Specifically, Figures 2 to 4 As shown, the upper connecting rod 124 mentioned above may be provided with a first connecting hole 1241 near its lower end, and the lower connecting rod 125 mentioned above may be provided with a second connecting hole (not shown in the figure) near its upper end. The lower end of the upper connecting rod 124 and the upper end of the lower connecting rod 125 may be arranged to be staggered, overlapped and overlapped, so that the first connecting hole 1241 and the second connecting hole are aligned and overlapped, and are hingedly fixed by the hinge tube 13 to facilitate the connection between the upper and lower parts. The hinged connection is fixed, the connection is reliable, and it also has buffering elasticity.

[0130] Furthermore, each of the aforementioned upper connecting rods 124 may be provided with a first long sliding hole 1243 near its upper end, and each of the lower connecting rods 125 may be provided with a second long sliding hole 1251 near its lower end; correspondingly, the four corners of each top frame 121 and the four corners of each bottom frame 122 may be provided with a positioning slot box 144 respectively. Specifically, each single battery cabinet 10 may be provided with eight positioning slot boxes 144, and a positioning slide bar 1441 is provided in the positioning slot box 144. The positioning slide bar 1441 can pass through the first long sliding hole 1243 or the second long sliding hole 1251 connected thereto and be fixedly connected, so that the two ends of each longitudinal support rod 123 can be detachably hinged and fixed to the top frame 121 and the bottom frame 122. While being reliably connected, it also has buffering elasticity, and the connection is not easy to be damaged or broken.

[0131] A further embodiment is that Figures 2 to 4 As shown, an auxiliary positioning rod 141 is connected between at least one group of two opposite longitudinal support rods 123 of each support frame 12. The embodiment of the present application is explained by taking the example of two groups of four opposite longitudinal support rods 123 on both sides of the horizontal extension direction of a row of multiple single battery cabinets 10 being provided with two opposite auxiliary positioning rods 141.

[0132] One end of the auxiliary positioning rod 141 passes through the first connecting hole 1241 and the second connecting hole of one of the longitudinal support rods 123 that are relatively set, and then passes through the limiting hole of the limiting clamp 142 and is locked and fixed by the first locking nut 143; similarly, the other end of the auxiliary positioning rod 141 passes through the first connecting hole 1241 and the second connecting hole of the other longitudinal support rod 123 that are relatively set, and then passes through the limiting hole of the other limiting clamp 142 and is locked and fixed by the other first locking nut 143.

[0133] Such arrangement not only utilizes the positions of the first connection holes 1241 and the second connection holes of the aforementioned split upper connection rod 124 and lower connection rod 125 to connect the auxiliary positioning rod 141, but also plays a role in further assisting positioning and limiting, greatly enhancing the structural strength of the single battery cabinet 10 after unfolding.

[0134] Further, the position of the limiting hole on the limiting card plate 142 in the aforementioned embodiment is preferably in the middle position, and the limiting card plate 142 may be provided with positioning pins 1421 on the upper and lower sides of its limiting hole, respectively. Correspondingly, the upper connecting rod 124 may be provided with a first auxiliary positioning hole 1242 corresponding to the positioning pin 1421 located on the upper side near its first connecting hole 1241, and the lower connecting rod 125 may be provided with a second auxiliary positioning hole corresponding to the positioning pin 1421 located on the lower side near its second connecting hole. The positioning pins 1421 and the auxiliary positioning holes are matched and connected and fixed in pairs, so as to further play the role of fixing and limiting, and improve the connection reliability of the limiting card plate 142.

[0135] like Figure 1 and Figure 8 As shown, the combined energy storage device provided in the embodiment of the present application may also include a combined base 40, which is assembled by combining multiple bases in sequence, and the top of the combined base 40 is fixedly connected to multiple support platforms 43 arranged in a row, and the top of the support platform 43 is fixedly connected to multiple single battery cabinets 10 stacked in sequence from top to bottom, so as to facilitate the fixing of the assembled multiple single battery cabinets 10.

[0136] An optional embodiment is as follows Figures 5 to 7 As shown, the locking structure 30 may specifically include two locking plates 31 arranged opposite to each other and locking rods 32 whose two ends are respectively fixedly connected to the two locking plates 31. The two locking plates 31 are respectively provided with four locking nails 311 at their four corners; each upper connecting rod 124 and each lower connecting rod 125 are provided with a locking hole 126; Figure 1 As shown, a plurality of locking structures 30 lock and connect a plurality of single battery cabinets 10 in rows and columns.

[0137] A specific embodiment is as follows Figure 1As shown, there are two locking holes 126 on the two lower connecting rods 125 on the same side of each two adjacent single battery cabinets 10 (such as the first single battery cabinet 21 and the second single battery cabinet 22), and two locking holes 126 on the two upper connecting rods 124 on the same side of the two adjacent single battery cabinets 10 below the two single battery cabinets 10 (such as the third single battery cabinet 23 and the fourth single battery cabinet 24). The four locking holes 126 are respectively fixedly connected and locked with four locking nails 311 of the locking card plate 31 on the same side of the same locking structure 30, and the locking rod 32 of the same locking structure 30 is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets 10 (the first single battery cabinet 21, the second single battery cabinet 22, the third single battery cabinet 23 and the fourth single battery cabinet 24), which not only reasonably utilizes the spatial structure, but also can reliably lock the single battery cabinets 10 adjacent to each other up, down, left and right.

[0138] Similarly, the two locking holes 126 on the two upper connecting rods 124 on the same side of each two adjacent single battery cabinets 10 (such as the first single battery cabinet 21 and the second single battery cabinet 22) in the horizontal direction, and the two locking holes 126 on the two lower connecting rods 125 on the same side of the two adjacent single battery cabinets 10 above the two single battery cabinets 10 (such as the fifth single battery cabinet 25 and the sixth single battery cabinet 26), the four locking holes 126 are respectively fixedly connected and locked with the four locking nails 311 of the locking card plate 31 on the same side of another locking structure 30, and the locking rod 32 of the locking structure 30 is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets 10 (the first single battery cabinet 21, the second single battery cabinet 22, the fifth single battery cabinet 25 and the sixth single battery cabinet 26), which not only reasonably utilizes the spatial structure, but also can reliably lock the single battery cabinets 10 adjacent to each other up, down, left and right.

[0139] Similarly, base locking holes 431 are respectively provided on both end sides near the top on opposite sides of the aforementioned support platform 43; the two base locking holes 431 on the same side of two adjacent support platforms 43, and the two locking holes 126 on the same side of the two lower connecting rods 125 of the two single battery cabinets 10 respectively fixedly connected to the tops of the two support platforms 43, are respectively fixedly connected and locked one by one with the four locking nails 311 of the locking card plate 31 on the same side of the same locking structure 30, and the locking rod 32 of the same locking structure 30 is arranged to pass through the middle gap surrounded by the two adjacent single battery cabinets 10 and the two adjacent support platforms 43, so as to fasten and lock each support platform 43 and each single battery cabinet 10 at the bottom layer together.

[0140] Optional, such as Figure 5 and Figure 6As shown, a hexagonal stop block 331 is fixedly mounted on one end of the aforementioned locking rod 32, and a second locking nut 332 is fixedly mounted on the other end. The locking nut is a hand-tightened nut of a common annular, cap-shaped or butterfly-shaped structure. A hexagonal auxiliary frame plate 333 can also be arranged on the outer periphery of the hexagonal stop block 331, so that when the locking rod 32 is locked with the locking card plates 31 on both sides by using the second locking nut 332, the hexagonal stop block 331 at one end of the locking rod 32 will be stuck in the hexagonal auxiliary frame plate 333 on one side of the locking card plate 31, so that the hexagonal auxiliary frame plate 333 plays a limiting role on the hexagonal stop block 331, thereby preventing the locking rod 32 from rotating by itself, making it convenient to tighten the second locking nut 332 on the locking rod 32, and reducing the difficulty of installing the combined energy storage device.

[0141] like Figures 1 to 3 and Figures 4 to 10 As shown, the combined energy storage device provided in the embodiment of the present application also includes a water cooling component, which includes a delivery main pipe 61 and a drainage main pipe 62 fixedly engaged with the combined base 40 on opposite sides of a plurality of support platforms 43 arranged in a row, and a plurality of delivery shunt pipe interfaces 611 and a plurality of drainage shunt pipe interfaces 621 are respectively arranged at intervals on the delivery main pipe 61 and the drainage main pipe 62, which are respectively used to be connected with the plurality of delivery shunt pipes and the plurality of drainage shunt pipes 622.

[0142] The water cooling assembly also includes a plurality of water cooling plates 51, which are respectively arranged between the bottom frame 122 of one of the single battery cabinets 10 and the top frame 121 of the other single battery cabinet 10 of each two upper and lower adjacent single battery cabinets 10, and between the top frame 121 of one of the single battery cabinets 10 and the bottom frame 122 of the other single battery cabinet 10, and between the top of each support platform 43 and the bottom frame 122 of the single battery cabinet 10 adjacent to its top.

[0143] A cooling coil is fixedly installed inside each water-cooling plate 51 to increase the cooling area. The two ports 5111 (water delivery end and drainage end) of the cooling coil are both arranged outside the water-cooling plate 51. One port 5111 is connected to the delivery main pipe 61 through a corresponding delivery shunt pipe, and the other port 5111 is connected to the drainage main pipe 62 through a corresponding drainage shunt pipe 622. With such an arrangement, the energy storage battery 11 in each single battery cabinet 10 can achieve cooling and heat exchange, so that the working state of the energy storage battery 11 remains stable and heat accumulation is reduced.

[0144] A preferred embodiment is that the aforementioned delivery diversion pipe and drainage diversion pipe 622 can be arranged in sections and sections. Specifically, the delivery diversion pipe can be formed by multiple delivery diversion pipes 612 being threadedly fixedly connected in sequence up and down, and the drainage diversion pipe 622 can be formed by multiple drainage diversion pipes 623 being threadedly fixedly connected in sequence up and down. Specifically, the threaded connection adopted in this application can be achieved by respectively arranging internal threads and external threads at the interface end and the connection end to cooperate with each other in threaded connection.

[0145] Preferably, a vertically arranged delivery branch pipe 612 and a vertically arranged drainage branch pipe 623 may be connected to the locking rod 32 of each locking structure 30 at intervals, and the two ports 5111 of each water-cooling plate 51 are respectively connected to the first interface 6121 of the delivery branch pipe 612 and the second interface 6231 of the drainage branch pipe 623. Preferably, the delivery main pipe 61, the drainage main pipe 62, each delivery branch pipe, each drainage branch pipe 622, each delivery branch pipe 612 and each drainage branch pipe 623 used in the embodiment of the present application are all hoses.

[0146] The water cooling assembly provided in the embodiment of the present application enables, after the combined energy storage device is assembled, the external water source will transport the cooling water through the delivery main pipe 61 to the delivery branch pipe on the same side under the action of water pressure, and then transport it to the cooling coil through the delivery branch pipe 612 on the side, so that the cooling water flows through the cooling coil to dissipate the heat of the energy storage battery 11, so that the working state of the energy storage battery 11 remains stable and heat accumulation is reduced. After flowing through the cooling coil, the cooling water flows into the drainage branch pipe 623 on the other side, and then is discharged through the drainage main pipe 62, completing the circulation of the cooling water.

[0147] More specifically, Figure 3 As shown, the top frame 121 and the bottom frame 122 of each single battery cabinet 10 are both provided with a concave water plate placement groove 127, and the water plate placement groove 127 is provided with a water plate through hole 1271. The arrangement of the water plate through hole 1271 allows the energy storage battery 11 to directly communicate with the upper and lower water cooling plates 51 through the upper and lower water plate through holes 1271 without obstruction, thereby achieving better cooling and heat exchange functions; Figure 8 As shown, the top of each support platform 43 is provided with a concave base water plate placement groove 432; and the top frame 121 and the bottom frame 122 of each single battery cabinet 10 and the top frame position of each support platform 43 are provided with at least two water pipe grooves 128 for positioning the two end sections 511 of the cooling coil, one end of the water pipe groove 128 is connected to the water plate placement groove 127, and the other end is connected to the outside of the single battery cabinet 10, and is used to be connected to the delivery branch pipe 612 and the drainage branch pipe 623.

[0148] Further, such as Fig.10As shown, an assembly frame 52 is also provided on the outer periphery of the water cooling plate 51, and two end sections 511 of the water cooling plate 51 are exposed through the assembly frame 52. The assembly frame 52 is matched with the concave water plate placement groove 127 to further facilitate matching and protect the water cooling plate from scratches.

[0149] Optional, such as Figures 5 to 7 As shown, each locking card plate 31 may be provided with a clearance groove 312 at the top and the bottom to facilitate the passage of the delivery branch pipe 612 and the drainage branch pipe 623.

[0150] Optional, such as Figure 1 and Figure 8 As shown, a plurality of water pipe placement holders 411 arranged at intervals may be respectively provided on opposite sides of a plurality of support platforms 43 arranged in a row on the combined base 40 for respectively engaging the conveying main pipe 61 and the drainage main pipe 62 .

[0151] Optional, such as Figure 7 As shown, a sealing nut 63 can be threadedly fixed on the topmost delivery branch pipe 612 to protect the inside of the delivery branch pipe 612; at the same time, the ends of the idle delivery branch pipe 612 and the drainage branch pipe 623 can also be blocked by setting a sealing nut 63 to prevent cooling water from overflowing from the idle delivery branch pipe 612 and the drainage branch pipe 623 when transporting cooling water.

[0152] like Figure 1 and Fig.11 As shown, the combined energy storage device provided in the embodiment of the present application may also be provided with a scissor-type lift 70. Specifically, the aforementioned combined base 40 may include a first row of combined bases 41 and a second row of combined bases 42 connected side by side, the top of the first row of combined bases 41 is fixedly connected to the aforementioned multiple support platforms 43 arranged in a row, the top of the second row of combined bases 42 is slidably or rollingly connected to the scissor-type lift 70, the scissor-type lift 70 moves along the row extension direction of the multiple support platforms 43, the top of the scissor-type lift 70 is driven and connected to a lifting platform 71, and the lifting platform 71 is provided with a battery placement position 713 for placing the energy storage battery 11.

[0153] With such arrangement, the energy storage battery 11 can be placed in the battery placement position 713 on the top of the lifting platform 71, and the scissor-type lift 70 can transport the energy storage battery 11 to one side of the corresponding three-dimensional single battery cabinet 10, and then move the energy storage battery 11 into the single battery cabinet 10. By repeating the operation, each energy storage battery 11 can be placed in each single battery cabinet 10 in turn, and the installation of the energy storage battery 11 can be completed. The scissor-type lift 70 can greatly reduce the labor intensity of carrying the energy storage battery 11 upward and speed up the installation.

[0154] A further embodiment is that the top of the aforementioned second row of combined bases 42 may be provided with a guide groove 421 extending along the row extension direction of the plurality of support platforms 43, which is used to match the universal wheels 72 or the sliding block at the bottom of the scissor lift 70, and the guide groove 421 is provided with a positioning groove 4211 corresponding to the position of each support platform 43. Specifically, the four corners of the bottom of the scissor lift 70 can be respectively fixed with universal wheels 72, and the top of the second row of combined bases 42 is preferably provided with two guide grooves 421 arranged in parallel at intervals, which are respectively matched with the two universal wheels 72 on the same side.

[0155] With such arrangement, the universal wheels 72 can be inserted into the guide grooves 421 and roll to guide the movement of the scissor-type lift 70, thereby preventing the scissor-type lift 70 from shifting and affecting the installation process of the energy storage battery 11. Moreover, after the scissor-type lift 70 moves to the front of the single battery cabinet 10, the four universal wheels 72 will fall into the positioning grooves 4211, thereby positioning and limiting the scissor-type lift 70, thereby preventing the scissor-type lift 70 from shaking when the energy storage batteries 11 in the vertical row are installed.

[0156] Another further embodiment is, Fig.11 As shown, one of the two opposite sides of the top of the lifting platform 71 can be respectively provided with a transport pallet 711, and the other two opposite sides of the top of the lifting platform 71 are respectively provided with transport slots 712 with different positions, so that the two transport pallets 711 can be inserted into the transport slots 712 with different positions according to the actual size of the energy storage battery 11, so as to control the distance between the two transport pallets 711 to be closer to the energy storage battery 11, and the battery placement position 713 for placing the energy storage battery 11 is set between the two transport pallets 711.

[0157] Such arrangement enables the size of the energy storage battery 11 to be compared, and the two transport pallets 711 to be inserted into the transport card slots 712 at corresponding positions, and then the energy storage battery 11 is placed on the lifting platform 71, so that the transport pallets 711 on both sides limit the energy storage battery 11, to prevent the energy storage battery 11 from slipping off the lifting platform 71 due to the vibration of the scissors-type lift 70 during operation when the scissors-type lift 70 drives the energy storage battery 11 to lift, thereby causing a safety accident.

[0158] Similar, such as Figure 2 and Figure 3 As shown, one of the two opposite sides of the bottom frame 122 of each single battery cabinet 10 can be respectively provided with a battery card plate 1221, and the other two opposite sides can be respectively provided with a battery card slot 1222 with different card positions to control the distance between the two battery card plates 1221 and to more closely fit and fix the energy storage battery 11.

[0159] With such an arrangement, after the energy storage battery 11 is moved from the lifting platform 71 to the interior of the single battery cabinet 10, the two battery clamping plates 1221 can be clamped on the battery clamping slots 1222 of the bottom frame 122, so that the two battery clamping plates 1221 are clamped on both sides of the energy storage battery 11, and the energy storage battery 11 is limited, so that the energy storage battery 11 will not slide off the single battery cabinet 10 during operation, thereby improving the safety performance of the combined energy storage device.

[0160] The assembly process of the single battery cabinet 10 can be: first place a specified number of combined bases 40 together, take out the single battery cabinets 10 corresponding to the number of energy storage batteries 11, pull apart the upper and lower top frames 121 and the bottom frames 122, so that each upper connecting rod 124 and the lower connecting rod 125 are turned from a folded state to a vertical state, and then press the top frame 121 and the bottom frame 122 to make each upper connecting rod 124 and the lower connecting rod 125 snap into the positioning slot box 144, and the positioning slot box 144 limits the longitudinal support rod 123, so that each longitudinal support rod 123 remains in a vertical state, and the unfolding of the single battery cabinet 10 is completed.

[0161] After the single battery cabinet 10 is unfolded, the auxiliary positioning rod 141 is inserted into the two hinged tubes 13 on the same side, and then the two limiting clamps 142 are sleeved on the two ends of the auxiliary positioning rod 141, so that the limiting clamps 142 and the connecting holes of the two upper connecting rods 124 and the lower connecting rod 125 fit each other, and the two positioning nails 1421 are respectively inserted into the two auxiliary positioning holes, and then the two first locking nuts 143 are respectively tightened on the two ends of the auxiliary positioning rod 141 to lock the limiting clamps 142. The other set of limiting clamps 142 and auxiliary positioning rods 141 are installed in the same way.

[0162] Then take out the corresponding number of water-cooling plates 51, first symmetrically place the first group of water-cooling plates 51 in pairs inside the base water plate placement groove 432 on the top of the support platform 43, so that the assembly frame 52 falls inside the base water plate placement groove 432 to support the water-cooling plates 51, and the two end sections 511 of the cooling coil are located inside the two water pipe through grooves 128, and then multiple single battery cabinets 10 are stacked on the top of the support platform 43 and the water-cooling plates 51 in sequence, and the second group of water-cooling plates 51 is placed on the top of the single battery cabinet 10, and so on, each single battery cabinet 10 and the water-cooling plates 51 are stacked in sequence, and then the corresponding number of The locking card plate 31 is successively placed at the junction of four single battery cabinets 10, and at the junction of two single battery cabinets 10 and two support platforms 43, so that the four locking nails 311 on one side of the locking card plate 31 are respectively inserted into the four locking holes 126, or into the two locking holes 126 and the two base locking holes 431, and then the locking rod 32 is inserted between the two locking card plates 31 to lock, so that the locking card plates 31 on both sides lock each single battery cabinet 10 and the support platform 43 together, and the energy storage battery 11 is placed in each single battery cabinet 10 to complete the combination of each single battery cabinet 10 and the energy storage battery 11.

[0163] Then, the delivery main pipe 61 and the drainage main pipe 62 can be placed on the water pipe placement holders 411 on both sides of the support platform 43, and then the delivery branch pipes and the drainage branch pipes 622 are connected to the bottom interfaces of the delivery branch pipe 612 and the drainage branch pipe 623 at the bottom through the clearance grooves 312 on the locking clamps 31 on both sides, so as to complete the waterway connection from the delivery main pipe 61 to the drainage main pipe 62. Then, the corresponding number of plugging nuts 63 are screwed on the top of the top delivery branch pipe 612 and the drainage branch pipe 623 in sequence to block them, and at the same time, the ends of the idle delivery branch pipe 612 and the drainage branch pipe 623 are screwed on the plugging nuts 63; finally, the delivery main pipe 61 is connected to a power water source such as a tap water pipe and a water pump, and one end of the drainage main pipe 62 is placed in a water reservoir or a circulating waterway to complete the installation of the water cooling component.

[0164] The disassembly process of the single battery cabinet 10 can be as follows: during disassembly, the operation can be reversed, and the water cooling assembly, the locking structure 30 and the single battery cabinet 10 can be disassembled in turn, and then the upper connecting rod 124 and the lower connecting rod 125 around the same single battery cabinet 10 are pulled out from the positioning slot box 144, so that the positioning slide bar 1441 slides inside the long slide hole, and then the top frame 121 and the bottom frame 122 are compressed, so that the upper connecting rod 124 and the lower connecting rod 125 rotate along the hinged tube 13, and the two are rotated and overlapped with each other, so that the top frame 121 and the bottom frame 122 are close to each other and contracted, completing the folding and compression of the single battery cabinet, and then the water cooling assembly, the locking structure 30, the single battery cabinet 10, the combined base 40 and the energy storage battery 11 can be classified for storage and transportation.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A combined energy storage device, characterized in that: include: A plurality of single battery cabinets and a plurality of energy storage batteries, each of the single battery cabinets comprises a detachable support frame, and the support frame encloses an internal energy storage space, and the energy storage battery is placed in the internal energy storage space; The adjacent single battery cabinets are locked and fixedly connected via a locking structure; The support frame includes a top frame and a bottom frame that are opposite to each other up and down, and four longitudinal support rods that are opposite to each other in pairs; each of the longitudinal support rods is separately arranged, and includes an upper connecting rod and a lower connecting rod, the lower end of the upper connecting rod and the upper end of the lower connecting rod are detachably fixedly connected, the upper end of each upper connecting rod is detachably fixedly connected to the top frame, and the lower end of each lower connecting rod is detachably fixedly connected to the bottom frame; A first connection hole is provided on the upper connection rod near its lower end, and a second connection hole is provided on the lower connection rod near its upper end. The lower end of the upper connection rod and the upper end of the lower connection rod are staggered and overlapped so that the first connection hole and the second connection hole are aligned and hingedly fixed by an auxiliary positioning rod. The opposite ends of the auxiliary positioning rod are respectively and sequentially passed through the first connection hole and the second connection hole of the two longitudinal support rods arranged opposite to each other and fixedly connected. The locking structure includes two locking plates arranged opposite to each other and locking rods whose two ends are fixedly connected to the two locking plates. The two locking plates are respectively provided with four locking nails at their four corners. Each upper connecting rod and each lower connecting rod is provided with a locking hole. The multiple locking structures lock and arrange the multiple single battery cabinets in rows and columns in sequence.

2. The combined energy storage device according to claim 1, characterized in that: Each of the upper connecting rods is provided with a first long sliding hole near its upper end, and each of the lower connecting rods is provided with a second long sliding hole near its lower end; The four corners of the top frame and the four corners of the bottom frame are respectively provided with positioning slot boxes, and positioning slide bars are provided in the positioning slot boxes. The positioning slide bars can pass through the first long slide hole or the second long slide hole for fixed connection.

3. The combined energy storage device according to claim 1, characterized in that: The opposite ends of the auxiliary positioning rod respectively pass through the first connecting hole and the second connecting hole of the two oppositely arranged longitudinal support rods in sequence, then pass through the limiting hole of the limiting clamping plate and are locked and fixedly connected by a first locking nut.

4. The combined energy storage device according to claim 3, characterized in that: The limiting clamping plate is provided with positioning pins on the upper and lower sides of its limiting hole, respectively. Correspondingly, the upper connecting rod is provided with a first auxiliary positioning hole corresponding to one of the positioning pins near its first connecting hole, and the lower connecting rod is provided with a second auxiliary positioning hole corresponding to the other positioning pin near its second connecting hole.

5. The combined energy storage device according to claim 1, characterized in that: It also includes a combined base, the top of which is fixedly connected to a plurality of support platforms arranged in rows, and the top of the support platform is fixedly connected to a plurality of the single battery cabinets stacked in sequence from top to bottom.

6. The combined energy storage device according to claim 5, characterized in that: The two locking holes on the two lower connecting rods on the same side of each two adjacent single battery cabinets in the transverse direction and the two locking holes on the two upper connecting rods on the same side of the two adjacent single battery cabinets below the two single battery cabinets are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of the same locking structure, and the locking rod of the same locking structure is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets; and / or The two locking holes on the two upper connecting rods on the same side of each two adjacent single battery cabinets in the transverse direction and the two locking holes on the two lower connecting rods on the same side of the two adjacent single battery cabinets above the two single battery cabinets are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of another locking structure, and the locking rod of the locking structure is arranged to pass through the middle gap surrounded by the four adjacent single battery cabinets; and / or Base locking holes are respectively provided on the two end sides close to the top on the opposite sides of the support platform, the two base locking holes on the same side of the two adjacent support platforms, and the two locking holes on the two lower connecting rods on the same side of the two single battery cabinets respectively fixedly connected to the tops of the two support platforms are respectively fixedly connected and locked one by one with the four locking nails of the locking card plate on the same side of the same locking structure, and the locking rod of the same locking structure is arranged to pass through the middle gap surrounded by the two adjacent single battery cabinets and the two adjacent support platforms.

7. The combined energy storage device according to claim 6, characterized in that: It also includes a water cooling assembly, the water cooling assembly comprising: A delivery main pipe and a drainage main pipe fixedly engaged with the plurality of support platforms arranged in a row on the combined base at opposite sides, wherein a plurality of delivery shunt pipes and a plurality of drainage shunt pipes are respectively arranged at intervals on the delivery main pipe and the drainage main pipe; and A plurality of water cooling plates are respectively arranged between the bottom frame of one of the single battery cabinets and the top frame of the other of the single battery cabinets, between the top frame of one of the single battery cabinets and the bottom frame of the other of the single battery cabinets, and between the top of each of the support platforms and the bottom frame of the single battery cabinet adjacent to the top thereof; A cooling coil is fixedly installed inside each of the water-cooled plates, and both ports of the cooling coil are arranged to extend outside the water-cooled plate. One of the ports is connected to the delivery main pipe through the corresponding delivery diversion pipe, and the other port is connected to the drainage main pipe through the corresponding drainage diversion pipe.

8. The combined energy storage device according to claim 7, characterized in that: The delivery shunt pipe and the drainage shunt pipe are both arranged in sections, the delivery shunt pipe is formed by a plurality of delivery shunt pipes being threadedly fixedly connected in sequence from top to bottom, and the drainage shunt pipe is formed by a plurality of drainage shunt pipes being threadedly fixedly connected in sequence from top to bottom; The locking rods of each locking structure are spaced apart from each other by a vertically arranged delivery branch pipe and a vertically arranged drainage branch pipe, and the two ports of each water-cooling plate are respectively connected to the first interface of the delivery branch pipe and the second interface of the drainage branch pipe adjacent thereto.

9. The combined energy storage device according to claim 8, characterized in that: The top frame and the bottom frame of each single battery cabinet are provided with a concave water plate placement groove, and the water plate placement groove is provided with a water plate through hole, and the top of each support platform is provided with a concave base water plate placement groove; The top frame and the bottom frame of each single battery cabinet and the top frame of each support platform are provided with at least two water pipe grooves for positioning the two end sections of the cooling coil. One end of the water pipe groove is connected to the water plate placement groove, and the other end is connected to the outside of the single battery cabinet and is used to be connected to the delivery branch pipe and the drainage branch pipe.

10. The combined energy storage device according to claim 8, characterized in that: Each of the locking clamps is provided with a clearance groove at the top and bottom to facilitate the passage of the delivery branch pipe and the drainage branch pipe; and / or The combined base is provided with a plurality of spaced-apart water pipe placement holders on opposite sides of a plurality of the support platforms arranged in a row, respectively, for respectively engaging the delivery main pipe and the drainage main pipe.

11. The combined energy storage device according to claim 5, characterized in that: The combined base includes a first row of combined bases and a second row of combined bases connected side by side, the top of the first row of combined bases is fixedly connected to a plurality of support platforms arranged in a row, the top of the second row of combined bases is slidably or rollingly connected to a scissors-type lift, the scissors-type lift moves along the extension direction of the rows of the plurality of support platforms, the top of the scissors-type lift is drivingly connected to a lifting platform, and the lifting platform is provided with a battery placement position for placing energy storage batteries.

12. The combined energy storage device according to claim 11, characterized in that: The top of the second row of combined bases is provided with a guide groove extending along the row extension direction of the plurality of support platforms, which is used to match the universal wheel or sliding block at the bottom of the scissor lift, and the guide groove is provided with a positioning groove corresponding to the position of each support platform; and / or One of the two opposite sides of the top of the lifting platform is respectively provided with a transport pallet, and the other two opposite sides of the top of the lifting platform are respectively provided with transport slots with different positions to control the distance between the two transport pallets, and the battery placement position is set between the two transport pallets.

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