Energy storage valve tower and energy storage system

Abstract

The utility model relates to an energy storage valve tower and an energy storage system, and the energy storage valve tower comprises a first energy storage prefabricated cabin which is used for installing an energy storage battery; an energy storage battery is mounted in the second energy storage prefabricated cabin; the first energy storage prefabricated cabin and the adjacent second energy storage prefabricated cabin are stacked and connected through at least two connecting mechanisms; the connecting mechanism comprises a first connecting piece arranged on the periphery of the bottom of the first energy storage prefabricated cabin; the second connecting piece is correspondingly arranged on the periphery of the top of the second energy storage prefabricated cabin, and the first connecting piece and the second connecting piece are connected in a mortise and tenon joint mode. According to the energy storage valve tower, the first energy storage prefabricated cabin and the adjacent second energy storage prefabricated cabin can form stable stacking connection through the corresponding first connecting pieces and second connecting pieces in a mortise and tenon joint connection mode, and the connecting operation of the multiple energy storage prefabricated cabins is simplified; and the firmness and the stability of stacking connection of a plurality of containers are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to an energy storage valve tower and an energy storage system. BACKGROUND

[0002] In the related art, two adjacent energy storage prefabricated cabins are directly connected and fixed by using a hinge or a lock structure. This stacking connection method is complicated and can cause the two adjacent energy storage prefabricated cabins to be not firmly connected and stacked, which can cause the energy storage prefabricated cabin to be unstable. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve the problem that the current stacking connection method of multiple energy storage prefabricated cabins is complicated and not firm, which can cause the energy storage prefabricated cabin to be unstable. To this end, the present application provides an energy storage valve tower and an energy storage system.

[0004] In a first aspect, the present application provides an energy storage valve tower, comprising:

[0005] a first energy storage prefabricated cabin, which is used for installing an energy storage battery;

[0006] a second energy storage prefabricated cabin, which is used for installing an energy storage battery;

[0007] a connecting mechanism, which is used for connecting the first energy storage prefabricated cabin and the second energy storage prefabricated cabin;

[0008] The connecting mechanism comprises:

[0009] a first connecting piece, which is arranged at the bottom periphery of the first energy storage prefabricated cabin;

[0010] a second connecting piece, which is arranged at the top periphery of the second energy storage prefabricated cabin, and the first connecting piece and the second connecting piece are connected by a mortise and tenon joint.

[0011] The energy storage valve tower according to the first aspect of the present application has at least the following beneficial effects:

[0012] The energy storage valve tower of the present application is connected by the first connecting piece and the second connecting piece of the connecting mechanism, so that the first energy storage prefabricated cabin and the second energy storage prefabricated cabin can be connected by the mortise and tenon joint, which simplifies the connection operation of multiple prefabricated cabins, effectively improves the firmness and stability of the stacking connection of multiple energy storage prefabricated cabins, reduces the probability of relative loosening or sliding of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin after stacking connection, and reduces the risk of overturning of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0013] In some embodiments, the first connecting member is arranged at a corner of the bottom of the first energy storage prefabricated cabin, and the second connecting member is correspondingly arranged at a corner of the top of the second energy storage prefabricated cabin; or the first connecting member is arranged at a non-corner of the bottom of the first energy storage prefabricated cabin, and the second connecting member is correspondingly arranged at a non-corner of the top of the second energy storage prefabricated cabin.

[0014] In this way, the stability of the stacked connection of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin is improved.

[0015] In some embodiments, the first connecting member is provided with a first through hole and a limiting portion intersecting the first through hole; the second connecting member comprises a base and a locking member connected to the base, and the locking member can pass through the first through hole and rotate relative to the first through hole to limit the limiting portion.

[0016] In this way, by the cooperation of the first through hole on the first connecting member, the limiting portion intersecting the first through hole, and the locking member of the second connecting member, the second energy storage prefabricated cabin is moved a distance relative to the first energy storage prefabricated cabin and then rotated a certain angle relative to the first energy storage prefabricated cabin, so that the second energy storage prefabricated cabin and the first energy storage prefabricated cabin form a mortise and tenon structure, the second energy storage prefabricated cabin and the first energy storage prefabricated cabin are stably stacked and connected, the stacked connection operation of the second energy storage prefabricated cabin and the first energy storage prefabricated cabin is simplified, and the stability of the stacked connection of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin is effectively improved.

[0017] In some embodiments, an active cavity is formed in the first connecting member and communicates with the first through hole, and the active cavity is used for moving and rotating the locking member relative to the first connecting member.

[0018] In this way, the active cavity can provide a space for the locking member to move and rotate relative to the first connecting member, so that the locking member does not interfere with the rest of the first connecting member during the limiting cooperation between the locking member on the second connecting member and the limiting portion on the first connecting member, and the smoothness of the limiting cooperation between the locking member and the limiting portion is improved.

[0019] In some embodiments, the locking member comprises a head portion and a rod portion connected integrally, the head portion extends into the active cavity and limits the limiting portion, the rod portion is detachably connected to the base, and the outer periphery of the head portion protrudes from the rod portion.

[0020] In this way, after the locking member moves through the first through hole on the first connecting member and then rotates relative to the first through hole, the head portion of the locking member can stably limit the limiting portion on the first connecting member, and the first energy storage prefabricated cabin and the second energy storage prefabricated cabin form a stable mortise and tenon connection structure.

[0021] In some embodiments, the base is provided with an abutting portion for the first connecting member to abut against, and the abutting portion is configured to limit the circumferential movement of the first connecting member.

[0022] In this way, the probability of the first connecting member slipping relative to the second connecting member is reduced, and the stability of the connection between the first connecting member and the second connecting member is improved, thereby improving the stability of the stacked connection between the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0023] In some embodiments, the connecting mechanism further comprises a shock-absorbing member provided on the abutting portion and configured to provide elastic buffering for the first connecting member.

[0024] In this way, the shock-absorbing member, which is limited and pressed between the first connecting member and the base, can absorb the impact between the first connecting member and the second connecting member, thereby reducing the vibration in the up-down direction of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin, and further improving the stability of the stacked connection between the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0025] In some embodiments, the shock-absorbing member is configured in a disc spring structure.

[0026] In this way, the disc spring has good elastic stretching performance and can provide stable elastic buffering for the first connecting member, and the cost of the disc spring is relatively low.

[0027] In some embodiments, the connecting mechanism further comprises a stop assembly configured to limit the movement of the locking member relative to the first connecting member and to release the limitation on the locking member.

[0028] In this way, after the locking member on the second connecting member is limited and matched with the limiting portion of the first connecting member, the locking member cannot rotate around the axis of the first connecting member, nor can it move vertically relative to the first connecting member, that is, it cannot be disengaged from the limiting and matching with the limiting portion, thereby improving the stability of the limiting and matching between the locking member and the limiting portion.

[0029] In some embodiments, the stop assembly comprises a stop member and a plug-in portion provided on the locking member, and the stop member passes through the first connecting member and is plug-in matched with the plug-in portion.

[0030] In this way, the locking member is locked on the first connecting member, and the first connecting member and the second connecting member are kept stationary relative to each other as a whole, thereby improving the stability of the stacked connection between the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0031] In some embodiments, an end of the stop member away from the plug-in portion is provided with a buckling portion, an outer wall of the first connecting member is provided with a second through hole for the stop member to pass through, and the buckling portion can be buckled in the second through hole.

[0032] In this way, the up-down direction and the left-right direction of the locking piece are limited by the stopper, so that the locking piece is stably locked by the limiting part, thereby improving the stability of the limiting cooperation between the locking piece and the limiting part.

[0033] In some embodiments, the locking piece is further connected with the base by a key.

[0034] In this way, the locking piece is stably connected with the base, and the locking piece cannot rotate around the axis of the base, thereby indirectly improving the stability of the limiting cooperation between the locking piece and the limiting part.

[0035] In some embodiments, the connecting mechanism further comprises a third connecting piece, a fourth connecting piece, and an insulation piece, the third connecting piece and the fourth connecting piece are respectively arranged at two ends of the insulation piece, the third connecting piece is connected with the first connecting piece by a mortise and tenon joint, and the fourth connecting piece is connected with the second connecting piece by a mortise and tenon joint.

[0036] In this way, the first energy storage prefabricated cabin and the second energy storage prefabricated cabin are connected by two pairs or continuously distributed mortise and tenon joints, thereby further improving the stability of the stacked connection of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0037] In some embodiments, the third connecting piece and the fourth connecting piece are both flange-connected with the insulation piece.

[0038] In this way, on the one hand, the third connecting piece and the fourth connecting piece can be quickly disassembled; on the other hand, after the first energy storage prefabricated cabin and the second energy storage prefabricated cabin are connected in a stacked manner, the load is mainly borne by the flanges on the third connecting piece, the fourth connecting piece, and the insulation piece, thereby reducing the probability of hard damage to the first connecting piece, the second connecting piece, the third connecting piece, the fourth connecting piece, and the insulation piece, and further improving the stability of the stacked connection of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin.

[0039] In some embodiments, the energy storage valve tower further comprises a support platform, the second energy storage prefabricated cabin is supported on the support platform, and the second energy storage prefabricated cabin is connected with the support platform in an equipotential manner.

[0040] In this way, the support platform provides basic support for the first energy storage prefabricated cabin and the second energy storage prefabricated cabin connected in stack, and serves as the main force receiving component at the bottom of the first energy storage prefabricated cabin and the second energy storage prefabricated cabin connected in stack, thereby enhancing the stability of the connection between the first energy storage prefabricated cabin and the second energy storage prefabricated cabin. In addition, by connecting the second energy storage prefabricated cabin to the support platform at the same potential, the second energy storage prefabricated cabin and the support platform at the bottom thereof form an equipotential body, thereby eliminating the floating potential of the metal components on the second energy storage prefabricated cabin and enhancing the stability and reliability of the energy storage valve tower in the corresponding high-pressure environment.

[0041] In some embodiments, the first energy storage prefabricated cabin is one of an energy storage container, an electrical cabinet, and a support frame; and / or the second energy storage prefabricated cabin is one of an energy storage container, an electrical cabinet, and a support frame.

[0042] In this way, the connection structure composed of the first connecting member and the second connecting member has improved adaptability to different types of energy storage prefabricated cabin structures.

[0043] In a second aspect, the present application provides an energy storage system, which comprises the energy storage valve tower described above.

[0044] According to the energy storage system of the second aspect of the present application, at least the following beneficial effects are achieved:

[0045] The energy storage system of the present application has better use reliability due to the configuration of the energy storage valve tower described above, and the multiple energy storage prefabricated cabins connected in stack on the energy storage valve tower have good connection firmness and stability.

[0046] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, features and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0047] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered as limitations on the present application. Moreover, in all the drawings, like reference numerals refer to the same or similar components. In the drawings:

[0048] Figure 1 The structure of the energy storage valve tower of the embodiments of the present application is shown in the schematic diagram.

[0049] Figure 2 The structure of the energy storage valve tower of the embodiments of the present application is shown in the schematic diagram. Figure 1 The partial enlarged view of A in FIG. 4.

[0050] Figure 3 Structure diagram of the connecting mechanism of the embodiment of the present application Figure 1 .

[0051] Figure 4 Structure diagram of the connecting mechanism of the embodiment of the present application

[0052] Figure 5 Structure diagram of the connecting mechanism of the embodiment of the present application

[0053] Figure 6 Structure diagram of the connecting mechanism of the embodiment of the present application Figure 2 .

[0054] Figure 7 Structure diagram of the connecting mechanism of the embodiment of the present application

[0055] Figure 8 Structure diagram of the connecting mechanism of the embodiment of the present application Figure 3 .

[0056] Figure 9 Structure diagram of the energy storage system of the embodiment of the present application

[0057] Explanation of reference numerals: first energy storage prefabricated cabin 10; second energy storage prefabricated cabin 20; connecting mechanism 30; first connecting piece 31; first through port 311; limiting part 312; movable cavity 313; second through port 314; second connecting piece 32; base 321; abutting part 3211; locking piece 322; head part 3221; rod part 3222; fastener 323; damping piece 33; stop assembly 34; stop piece 341; buckling part 3411; plug-in part 342; third connecting piece 35; fourth connecting piece 36; insulation piece 37; monitoring background 101; system controller 102; energy storage sub-module 103; battery management system 104; sub-module controller 105. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0059] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0060] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under the second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0063] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intervening element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms used herein are for purposes of description and are not meant to be limiting.

[0064] The energy storage prefabricated cabin is a specially designed energy storage system, which has the advantages of high efficiency, stability, flexibility, energy saving, etc., and can meet the needs of different fields for energy storage equipment.

[0065] In order to reduce the occupied space and cost during storage and transportation, a plurality of energy storage prefabricated cabins are generally stored in a stacked manner. When a plurality of energy storage prefabricated cabins are integrated into an energy storage valve tower structure, the plurality of energy storage prefabricated cabins also need to be stacked and arranged.

[0066] In the related art, two adjacent energy storage prefabricated cabins are directly locked and fixed by using a hinge or a lock structure. This stacking and connecting method is relatively cumbersome, and it is easy to cause the two adjacent energy storage prefabricated cabins to be not firmly stacked and connected, which causes the energy storage prefabricated cabin to have the risk of overturning.

[0067] Therefore, in view of the problems that the current stacking and connecting method of a plurality of energy storage prefabricated cabins is cumbersome and not firm, and the energy storage prefabricated cabin has the risk of overturning, one or more embodiments of the present application provide an energy storage valve tower. By providing a connecting mechanism, the first energy storage prefabricated cabin and the adjacent second energy storage prefabricated cabin can be firmly stacked and connected in a mortise and tenon connection manner through corresponding first and second connecting pieces. This simplifies the connection operation of a plurality of energy storage prefabricated cabins, effectively improves the firmness and stability of the stacking and connecting of a plurality of energy storage prefabricated cabins, reduces the probability of relative looseness or sliding of the first and second energy storage prefabricated cabins after stacking and connecting, and reduces the risk of overturning of the first and second energy storage prefabricated cabins.

[0068] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the embodiments of the present application provide an energy storage valve tower, which comprises a first energy storage prefabricated cabin 10, a second energy storage prefabricated cabin 20, and a connecting mechanism 30. The first energy storage prefabricated cabin 10 and the adjacent second energy storage prefabricated cabin 20 are stacked and connected by at least two connecting mechanisms 30.

[0069] Among them, the first energy storage prefabricated cabin 10 is used for installing energy storage batteries, and the second energy storage prefabricated cabin 20 is also used for installing energy storage batteries.

[0070] The connecting mechanism 30 comprises a first connecting piece 31 and a second connecting piece 32. The first connecting piece 31 is arranged at the bottom periphery of the first energy storage prefabricated cabin 10. The second connecting piece 32 is correspondingly arranged at the top periphery of the second energy storage prefabricated cabin 20. The first connecting piece 31 and the second connecting piece 32 are connected by mortise and tenon.

[0071] It should be noted that the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 refer to integrated equipment cabins for pre-assembling and debugging energy storage equipment and related systems, such as batteries, water-cooled fire extinguishing systems, controllers, functional converters, etc. The first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 can be directly transported to the installation site for on-site installation. One type of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 can be an energy storage container.

[0072] In this application, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are energy storage prefabricated cabins with substantially the same shape and structure, both of which can be polygonal column structures, such as square columns, hexagonal columns, etc. The first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are both internally configured to install energy storage batteries such as battery modules.

[0073] When the first energy storage prefabricated cabin 10 is a sub-module in a chain-type energy storage, the first energy storage prefabricated cabin 10 is also used to install functional components such as power converters and electrical compartments.

[0074] Similarly, when the second energy storage prefabricated cabin 20 is a sub-module in a chain-type energy storage, the second energy storage prefabricated cabin 20 is also used to install functional components such as power converters and electrical compartments.

[0075] The bottom periphery of the first energy storage prefabricated cabin 10 can be understood as the circumferential edge part of the bottom surface of the first energy storage prefabricated cabin 10. The top periphery of the first energy storage prefabricated cabin 10 can be understood as the circumferential edge part of the top surface of the first energy storage prefabricated cabin 10. The second energy storage prefabricated cabin 20 is similar, and will not be described here.

[0076] The bottom corner of the first energy storage prefabricated cabin 10 can be understood as the connection part of the two adjacent outer edges of the bottom surface of the first energy storage prefabricated cabin 10. The top corner of the first energy storage prefabricated cabin 10 can be understood as the connection part of the two adjacent outer edges of the top surface of the first energy storage prefabricated cabin 10. The second energy storage prefabricated cabin 20 is similar, and will not be described here.

[0077] Correspondingly, the bottom non-corner of the first energy storage prefabricated cabin 10 can be understood as all the outer edge parts of the bottom surface of the first energy storage prefabricated cabin 10. The top non-corner of the first energy storage prefabricated cabin 10 can be understood as all the outer edge parts of the top surface of the first energy storage prefabricated cabin 10. The second energy storage prefabricated cabin 20 is similar, and will not be described here.

[0078] It can be understood that the bottom non-corner area and the bottom corner area of the first energy storage prefabricated cabin 10 jointly define the bottom periphery of the first energy storage prefabricated cabin 10, and the top non-corner area and the top corner area of the first energy storage prefabricated cabin 10 jointly define the top periphery of the first energy storage prefabricated cabin 10. The second energy storage prefabricated cabin 20 is the same, and will not be repeated here.

[0079] In addition, the number of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 is equal, both of which can be one or multiple, and the specific number is not limited, which can be set according to the application requirements of the energy storage valve tower.

[0080] When the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are both one, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected by stacking up and down through the connecting mechanism 30, and the second energy storage prefabricated cabin 20 is in the lower layer and the first energy storage prefabricated cabin 10 is in the upper layer.

[0081] When the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are both multiple, all the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected by stacking up and down in turn, and along the direction from bottom to top of the stacking, the first energy storage prefabricated cabin 10 is double-layered and the second energy storage prefabricated cabin 20 is single-layered, and one of all the second energy storage prefabricated cabin 20 is in the lowermost layer.

[0082] And, when all the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected by stacking up and down through the connecting mechanism 30, the second energy storage prefabricated cabin 20 in the lowermost layer is generally fixed and installed on the ground or a support platform directly or indirectly, so as to improve the space utilization.

[0083] Referring to Figure 1 , the present application takes a single first energy storage prefabricated cabin 10 and a single second energy storage prefabricated cabin 20 as an embodiment to be stacked up and down. At this time, the second energy storage prefabricated cabin 20 is located at the bottom of the first energy storage prefabricated cabin 10 and can be fixed and installed on the ground or a corresponding support platform.

[0084] Under this embodiment, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected by stacking through four connecting mechanisms 30, and the four connecting mechanisms 30 are respectively distributed in the four corner areas between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, which can improve the stability of the stacking connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0085] In the connecting mechanism 30 of this embodiment, the first connecting piece 31 can be directly fixed at the corresponding corner of the bottom of the first energy storage prefabricated cabin 10 by welding, clamping, threaded connection and the like. Similarly, the second connecting piece 32 can also be directly fixed at the corresponding corner of the top of the second energy storage prefabricated cabin 20 by welding, clamping, threaded connection and the like.

[0086] When the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are stacked and connected, the first energy storage prefabricated cabin 10 or the second energy storage prefabricated cabin 20 can be positioned as a reference, and then the second connecting piece 32 on the second energy storage prefabricated cabin 20 is connected with the first connecting piece 31 on the first energy storage prefabricated cabin 10 in a mortise and tenon connection. The operation is simple, and at the same time, the mortise and tenon connection structure formed by the first connecting piece 31 and the second connecting piece 32 can make the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 stably engage with each other, improve the firmness and stability of the stacked connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, and reduce the probability of relative looseness or sliding of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 after being stacked and connected, and also reduce the hidden danger of overturning of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0087] It can be understood that, by cooperation of the first connecting piece 31 and the second connecting piece 32 of the connecting mechanism 30, the first energy storage prefabricated cabin 10 and the adjacent second energy storage prefabricated cabin 20 can be stably stacked and connected in a mortise and tenon connection through the corresponding first connecting piece 31 and the second connecting piece 32. The connection operation of the plurality of energy storage prefabricated cabins is simplified, and the firmness and stability of the stacked connection of the plurality of energy storage prefabricated cabins are effectively improved, the probability of relative looseness or sliding of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 after being stacked and connected is reduced, and the hidden danger of overturning of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 is also reduced.

[0088] In some embodiments of the present application, the first connecting piece 31 is arranged at the bottom corner of the first energy storage prefabricated cabin 10, and the second connecting piece 32 is correspondingly arranged at the top corner of the second energy storage prefabricated cabin 20.

[0089] Specifically, referring to Figure 1 , the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are stacked and connected through four connecting mechanisms 30. The four first connecting pieces 31 are respectively arranged at the bottom four corners of the first energy storage prefabricated cabin 10, and correspondingly, the four second connecting pieces 32 are respectively arranged at the top four corners of the second energy storage prefabricated cabin 20.

[0090] In this way, the four connecting mechanisms 30 are respectively distributed in the four corner regions between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, so that the second energy storage prefabricated cabin 20 bears the gravity of the first energy storage prefabricated cabin 10 on it relatively uniformly, and the stability of the stacked connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 is improved.

[0091] Of course, in other embodiments, in addition to arranging the connecting mechanism 30 in the four corner regions between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, the connecting mechanism 30 can also be arranged in the non-corner regions between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0092] That is, the first connecting piece 31 of the connecting mechanism 30 can be arranged at a non-corner of the bottom of the first energy storage prefabricated cabin 10, and the second connecting piece 32 is correspondingly arranged at a non-corner of the top of the second energy storage prefabricated cabin 20.

[0093] As in one embodiment, the first connecting piece 31 is arranged at the middle of the bottom edge beam of the first energy storage prefabricated cabin 10, and the second connecting piece 32 is correspondingly arranged at the middle of the top edge beam of the second energy storage prefabricated cabin 20, and the first connecting piece 31 and the second connecting piece 32 are connected in a top-down corresponding mortise and tenon joint.

[0094] Further, in another embodiment, a plurality of first connecting pieces 31 are arranged at the bottom of the first energy storage prefabricated cabin 10 in a circumferential interval, and a plurality of second connecting pieces 32 are arranged at the top of the second energy storage prefabricated cabin 20 in a circumferential interval, and the first connecting pieces 31 and the second connecting pieces 32 are one-to-one corresponding and connected in a mortise and tenon joint.

[0095] In this way, the plurality of mortise and tenon joint structures formed by the plurality of first connecting pieces 31 and the plurality of second connecting pieces 32 further improve the stability of the stacking connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0096] In some embodiments of the present application, referring to Figure 3 , Figure 4 and Figure 5 , the first connecting piece 31 is provided with a first through opening 311 and a limiting portion 312 distributed transversely to the first through opening 311; the second connecting piece 32 includes a base 321 and a locking piece 322 connected to the base 321, the locking piece 322 can pass through the first through opening 311 and rotate relative to the first through opening 311 to limit the limiting portion 312.

[0097] Specifically, the first connecting piece 31 is in the form of a square corner piece structure, the first through opening 311 penetrates the bottom of the first connecting piece 31, and the limiting portion 312 is configured as a limiting groove opened in the first connecting piece 31 and having a slot opening toward the first through opening 311.

[0098] The base 321 of the second connecting piece 32 is directly or indirectly fixed to the top corner of the second energy storage prefabricated cabin 20, and the locking piece 322 is vertically arranged on the base 321 and protrudes toward the first connecting piece 31 relative to the base 321.

[0099] When performing the stacking connection operation of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, referring to Figure 1、 Figure 2 and Figure 4 With the first energy storage prefabricated cabin 10 at the upper layer as the positioning reference, the first energy storage prefabricated cabin 10 can be suspended in the air by lifting equipment such as a crane or an elevator, and at the same time, the second energy storage prefabricated cabin 20 at the lower layer is vertically aligned with the first energy storage prefabricated cabin 10 at the upper layer. Then, the second energy storage prefabricated cabin 20 is lifted upward by the mechanical equipment such as the crane or the elevator, so that the locking piece 322 on the second energy storage prefabricated cabin 20 passes through the first through hole 311 on the first connecting piece 31. Then, the second energy storage prefabricated cabin 20 is rotated as a whole by 90° around its own axis, so that the locking piece 322 is rotated to be vertically aligned with the limiting part 312 on the first connecting piece 31. After the second energy storage prefabricated cabin 20 is moved downward by a small distance, the locking piece 322 on the second energy storage prefabricated cabin 20 is stopped by the limiting part 312 on the first connecting piece 31, so as to be limited by the limiting part 312.

[0100] At this time, the first connecting piece 31 on the first energy storage prefabricated cabin 10 and the second connecting piece 32 on the second energy storage prefabricated cabin 20 form a mortise and tenon engagement connection, and are locked and limited to each other, so that the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are stably stacked and connected. Finally, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 which have been stacked and connected are stably placed on the ground or a support platform by the corresponding lifting equipment, and the stacking and connecting operation of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 is completed.

[0101] When a plurality of first energy storage prefabricated cabins 10 and second energy storage prefabricated cabins 20 need to be stacked and connected, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 which are adjacent to each other in the upper and lower directions can be stacked and connected by the above-mentioned manner.

[0102] When the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 which are stacked and connected need to be disassembled and separated, the operation opposite to the stacking and connecting operation can be performed to disassemble and separate the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, which will not be described herein again.

[0103] It can be understood that, by the cooperation of the first through hole 311 on the first connecting piece 31, the limiting part 312 intersecting and distributed with the first through hole 311, and the locking piece 322 of the second connecting piece 32, after the second energy storage prefabricated cabin 20 is moved by a distance relative to the first energy storage prefabricated cabin 10 and then rotated by a certain angle relative to the first energy storage prefabricated cabin 10, the second energy storage prefabricated cabin 20 and the first energy storage prefabricated cabin 10 form a mortise and tenon engagement structure, so that the second energy storage prefabricated cabin 20 and the first energy storage prefabricated cabin 10 are stably stacked and connected, which simplifies the stacking and connecting operation of the second energy storage prefabricated cabin 20 and the first energy storage prefabricated cabin 10, and effectively improves the stability of the stacking and connecting of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0104] Further, referring to Figure 3 and Figure 4 , the interior of the first connecting piece 31 is formed with a movable cavity 313 communicated with the first through port 311, and the movable cavity 313 is used for moving and rotating the locking piece 322 relative to the first connecting piece 31.

[0105] Specifically, the first connecting piece 31 is square-shaped and is configured as a hollow shell structure, and the interior of the shell is formed with the movable cavity 313 communicated with the first through port 311. The first connecting piece 31 is directly welded at the bottom corner of the first energy storage prefabricated cabin 10, so that the position of the first connecting piece 31 on the first energy storage prefabricated cabin 10 is kept stable.

[0106] It is easy to understand that when the stacking connection operation of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 is performed, the second energy storage prefabricated cabin 20 is lifted upward, and the locking piece 322 of the second connecting piece 32 on the second energy storage prefabricated cabin 20 is moved into the movable cavity 313 in the first connecting piece 31 after vertically passing through the first through port 311 of the first connecting piece 31. The second energy storage prefabricated cabin 20 is rotated as a whole, so that the locking piece 322 of the second connecting piece 32 is rotated around the axis of the first connecting piece 31 to the upper and lower alignment of the locking piece 322 and the limiting part 312 in the first connecting piece 31. After the second energy storage prefabricated cabin 20 is moved downward by a small distance, the locking piece 322 on the second energy storage prefabricated cabin 20 is stopped by the limiting part 312 on the first connecting piece 31, so as to be limited and matched with the limiting part 312.

[0107] In this way, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 form a mortise and tenon engagement connection structure, so that the stacking connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 can be kept firm and stable.

[0108] It is not difficult to understand that by forming the movable cavity 313 communicated with the first through port 311 in the interior of the first connecting piece 31, the movable cavity 313 can provide the locking piece 322 with the avoiding space for moving and rotating relative to the first connecting piece 31, so that the locking piece 322 does not interfere with the remaining parts of the first connecting piece 31 during the limiting and matching process of the locking piece 322 and the limiting part 312 on the first connecting piece 31, and the smoothness of the limiting and matching of the locking piece 322 and the limiting part 312 is improved.

[0109] Further, referring to Figure 3 , Figure 4 and Figure 5The locking member 322 comprises a head 3221 and a rod 3222, the head 3221 extends into the movable cavity 313 and is limited by the limiting part 312, and the rod 3222 is detachably connected with the base 321, and the outer periphery of the head 3221 protrudes from the rod 3222.

[0110] Specifically, the locking member 322 is configured as a bolt structure, the head 3221 of the locking member 322 can be but is not limited to a strip shape or a circular shape, the rod 3222 of the locking member 322 is in a cylindrical shape, and it is easy to understand that the outer diameter of the head 3221 of the locking member 322 is greater than the outer diameter of the rod 3222 of the locking member 322. Correspondingly, the first through hole 311 on the first connecting member 31 is in a strip hole or a circular hole shape matched with the shape of the head 3221 of the locking member 322, and the limiting part 312 is configured as a limiting groove with an opening facing upward.

[0111] It is not difficult to understand that, during the movement of the locking member 322 driven by the second energy storage prefabricated cabin 20 through the first through hole 311, the head 3221 of the locking member 322 will first be above the first through hole 311 and the limiting part 312, at which time the head 3221 of the locking member 322 is vertically distributed with the limiting part 312. During this process, because the rod 3222 of the locking member 322 is connected with the base 321 arranged on the second energy storage prefabricated cabin 20, the locking member 322 and the second energy storage prefabricated cabin 20 remain relatively stationary.

[0112] Then, the locking member 322 is rotated by 90° relative to the first connecting member 31 driven by the second energy storage prefabricated cabin 20, so that the head 3221 of the locking member 322 is rotated to a position vertically aligned with the limiting part 312, and the second energy storage prefabricated cabin 20 drives the locking member 322 to move downward until the head 3221 of the locking member 322 is stopped and limited by the limiting part 312, thereby achieving the limiting cooperation between the locking member 322 and the limiting part 312, so as to form the mortise and tenon connection between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0113] It can be understood that, by configuring the locking member 322 as a structure having the head 3221 and the rod 3222, the head 3221 of the locking member 322 can form a stable limiting cooperation with the limiting part 312 on the first connecting member 31 after the locking member 322 moves through the first through hole 311 on the first connecting member 31 and is rotated relative to the first through hole 311, thereby forming a stable mortise and tenon connection structure between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0114] Meanwhile, the rod part 3222 with a smaller outer diameter on the locking part 322 does not form structural interference with the first through hole 311, so that the locking part 322 can freely move and rotate in the movable cavity 313 in the first connecting part 31, facilitating the separation of the locking part 322 from the first connecting part 31, and unlocking the mortise and tenon connection between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, facilitating the disassembly and separation of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0115] Further, referring to Figure 4 and Figure 5 , the base 321 is provided with an abutting part 3211 for abutting the first connecting part 31, and the abutting part 3211 is configured to limit the circumferential direction of the first connecting part 31.

[0116] Specifically, the abutting part 3211 is a stop groove formed on the base 321, the shape of the stop groove is matched with the shape of the bottom of the first connecting part 31, and the slot of the stop groove is slightly larger than the outer diameter of the first connecting part 31, so that the first connecting part 31 can be accurately abutted in the stop groove.

[0117] It is easy to understand that when the locking part 322 on the second connecting part 32 is stably limited and matched with the limiting part 312 on the first connecting part 31, the bottom of the first connecting part 31 will be positioned and abutted on the abutting part 3211 on the base 321 on the second connecting part 32, and the circumferential inner wall of the abutting part 3211 will stop and limit the bottom of the first connecting part 31, reducing the probability of sliding of the first connecting part 31 relative to the second connecting part 32, improving the connection stability of the first connecting part 31 and the second connecting part 32, and further improving the stability of the stacking connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0118] Further, referring to Figure 4 and Figure 5 , the connecting mechanism 30 further comprises a damping part 33, which is arranged on the abutting part 3211 and used for providing elastic buffering for the first connecting part 31.

[0119] Specifically, the damping part 33 is configured as a disc spring structure, which has good elastic stretching performance and can provide stable elastic buffering for the first connecting part 31, and at the same time, the cost of the disc spring is relatively low.

[0120] Of course, the damping part 33 can also be an elastic structure such as a spring or a spring sheet, and can also be a damping shock absorber, which can be a spring type damping shock absorber, a hydraulic type damping shock absorber, a disc spring type damping shock absorber, etc.

[0121] The abutting part 3211 is a stop groove provided on the base 321, the damping member 33 is arranged on the stop groove, and the thickness of the damping member 33 is less than the depth of the stop groove, so that the stop groove is in excess of the space for the first connecting member 31 to abut, and the circumferential inner wall of the stop groove also serves as a corresponding stop limiting for the damping member 33, reducing the probability of the damping member 33 slipping in the stop groove, and keeping the position of the damping member 33 stable.

[0122] A positioning hole is formed at the center of the damping member 33 and the center of the base 321, and the positioning hole on the damping member 33 is coaxially aligned with the positioning hole on the base 321. The rod part 3222 of the locking member 322 is screwed with the fastener 323 on the base 321 after passing through the positioning holes on the damping member 33 and the base 321 from top to bottom. In this way, the locking member 322 is positioned and fixed on the base 321, and at the same time, the damping member 33 can also be kept in abutment with the stop groove of the base 321 under the limiting action of the rod part 3222 of the locking member 322.

[0123] It should be understood that when the locking member 322 on the second connecting member 32 is stably limited and matched with the limiting part 312 on the first connecting member 31, the bottom of the first connecting member 31 limits and holds the damping member 33 on the base 321 of the second connecting member 32.

[0124] When the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 connected in stack are shaken or shaken, the damping member 33 limited and held between the first connecting member 31 and the base 321 can absorb the impact between the first connecting member 31 and the second connecting member 32, so as to reduce the vibration in the up-down direction of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, and further improve the stability of the stack connection between the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0125] Of course, in other embodiments, the damping member 33 can also be configured as a groove structure matched with the shape of the stop groove, and the damping member 33 is attached to the inner wall of the stop groove as a whole. In this way, the bottom of the damping member 33 reduces the vibration in the up-down direction of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20, and the circumferential side of the damping member 33 reduces the vibration in the horizontal direction of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20. In this way, the damping effect of the damping member 33 is improved.

[0126] Further, referring to Figure 6 and Figure 7 , the connecting mechanism 30 further comprises a stop assembly 34 configured to limit the movement of the locking member 322 relative to the first connecting member 31 and to release the limitation on the locking member 322.

[0127] The setting of the stop assembly 34 makes the locking piece 322 on the second connecting piece 32 unable to rotate around the axis of the first connecting piece 31 and move vertically relative to the first connecting piece 31 after the locking piece 322 is limited by the limiting portion 312 of the first connecting piece 31, that is, the locking piece 322 is unable to be out of the limiting cooperation with the limiting portion 312, thereby improving the stability of the limiting cooperation between the locking piece 322 and the limiting portion 312.

[0128] The locking piece 322 on the second connecting piece 32 is out of the limiting cooperation with the limiting portion 312 in the manner of moving and rotating relative to the first connecting piece 31 by the stop assembly 34 releasing the limitation on the locking piece 322, so as to disassemble and separate the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0129] Further, referring to the drawings, the stop assembly 34 comprises a stop piece 341 and a plug-in portion 342 provided on the locking piece 322, and the stop piece 341 passes through the first connecting piece 31 and is in plug-in cooperation with the plug-in portion 342.

[0130] Specifically, the stop piece 341 is a plug pin, and the plug-in portion 342 is a plug-in hole provided on the side wall of the locking piece 322.

[0131] When the locking piece 322 on the second connecting piece 32 is in limiting cooperation with the limiting portion 312 on the first connecting piece 31, the stop piece 341 can pass through the first connecting piece 31 and be plugged into the plug-in portion 342 on the locking piece 322 in a corresponding manner, so as to lock the locking piece 322 on the first connecting piece 31, and make the first connecting piece 31 and the second connecting piece 32 as a whole keep still relative to each other, thereby improving the stability of the stacked connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0132] Further, referring to Figure 7 , one end of the stop piece 341 away from the plug-in portion 342 is provided with a buckling portion 3411, the outer wall of the first connecting piece 31 is provided with a second through hole 314 through which the stop piece 341 passes, and the buckling portion 3411 can be buckled in the second through hole 314.

[0133] Specifically, the second through hole 314 and the first through hole 311 are respectively provided on the adjacent outer walls of the first connecting piece 31, and the second through hole 314 and the first through hole 311 are perpendicular to each other in space.

[0134] The stop piece 341 is substantially in the structure of a bolt, the head of the stop piece 341 forms the buckling portion 3411, and the rod portion of the stop piece 341 is in plug-in cooperation with the plug-in portion 342.

[0135] It should be understood that when the locking member 322 on the second connecting member 32 forms a limiting fit with the limiting portion 312 on the first connecting member 31, the stop member 341 is horizontally inserted into the insertion portion 342 on the locking member 322, and the buckling portion 3411 on the stop member 341 is positioned and buckled at the second through hole 314.

[0136] In this way, the buckling of the buckling portion 3411 and the second through hole 314 in combination with the insertion of the stop member 341 and the locking member 322 improves the stability of the limiting fit between the locking member 322 and the limiting portion 312.

[0137] Further, referring to Figure 4 and Figure 5 , the second connecting member 32 further comprises a fastener 323 provided on the base 321, and the end of the locking member 322 away from the first connecting member 31 passes through the base 321 and is detachably connected with the fastener 323.

[0138] Specifically, the rod portion 3222 of the locking member 322 is provided with external threads, and the fastener 323 is configured as a nut structure, and the rod portion 3222 of the locking member 322 passes through the base 321 and is threadedly connected with the fastener 323. In this way, the locking member 322 can be easily disassembled and replaced.

[0139] In addition, the locking member 322 is also keyed to the base 321.

[0140] For example, referring to Figure 6 and Figure 7 , the outer wall of the rod portion 3222 of the locking member 322 is provided with a clamping key (not shown in the figure), and a center hole (not shown in the figure) is provided at the center of the base 321 for the rod portion 3222 of the locking member 322 to pass through, and the inner wall of the center hole is also formed with a clamping hole (not shown in the figure) extending along the radial direction of the center hole, and the clamping key on the rod portion 3222 of the locking member 322 corresponds to the clamping hole at the center of the base 321, so that the locking member 322 is keyed to the base 321, and the locking member 322 is stably positioned and connected with the base 321, and the locking member 322 cannot rotate around the axis of the base 321, thereby indirectly improving the stability of the limiting fit between the locking member 322 and the limiting portion 312.

[0141] In some embodiments of the present application, referring to Figure 1 and Figure 8 , the connecting mechanism 30 further comprises a third connecting member 35, a fourth connecting member 36, and an insulating member 37, the third connecting member 35 and the fourth connecting member 36 are respectively provided at two ends of the insulating member 37, the third connecting member 35 is mortise and tenon connected with the first connecting member 31, and the fourth connecting member 36 is mortise and tenon connected with the second connecting member 32.

[0142] Specifically, the insulating member 37 can be an insulator, which is an insulating control for forming good insulation between the power equipment or other conductors installed in the energy storage valve tower and the ground. The insulator can be made of ceramic, glass or composite insulating material. The insulating member 37 can also be other structures that play an insulating role.

[0143] The insulating member 37 is in the shape of a vertical rod, and the third connecting member 35 and the fourth connecting member 36 are respectively detachably connected to the upper end and the lower end of the insulating member 37. The structure of the third connecting member 35 can be completely the same as that of the second connecting member 32, so that the mortise and tenon connection structure formed by the third connecting member 35 and the first connecting member 31 is completely consistent with the above-mentioned mortise and tenon connection structure formed by the first connecting member 31 and the second connecting member 32, which will not be described here. Similarly, the structure of the fourth connecting member 36 can be completely the same as that of the first connecting member 31, so that the mortise and tenon connection structure formed by the fourth connecting member 36 and the second connecting member 32 is completely consistent with the above-mentioned mortise and tenon connection structure formed by the first connecting member 31 and the second connecting member 32, which will not be described here.

[0144] Of course, in other embodiments, the third connecting member 35 and the fourth connecting member 36 are respectively detachably connected to the upper end and the lower end of the insulating member 37, and the third connecting member 35 and the fourth connecting member 36 are both completely the same as the structure of the second connecting member 32, at this time, the second connecting member 32 arranged on the top of the second energy storage prefabricated cabin 20 is completely the same as the structure of the above-mentioned first connecting member 31. At this time, the mortise and tenon connection structure formed by the first connecting member 31 and the third connecting member 35 is distributed in mirror image with the mortise and tenon connection structure formed by the second connecting member 32 and the fourth connecting member 36 with respect to the insulating member 37.

[0145] It is not difficult to understand that through the above arrangement, the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected in a butt joint through two pairs or continuous distribution of mortise and tenon structures, further improving the stability of the stacking connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0146] Further, referring to Figure 8 , the third connecting member 35 and the fourth connecting member 36 are both flange-connected with the insulating member 37.

[0147] Specifically, the two ends of the insulating member 37 are respectively provided with a first flange and a second flange, and the third connecting member 35 and the fourth connecting member 36 are respectively provided with a third flange and a fourth flange at the corresponding positions.

[0148] By flange connecting the third connecting piece 35 and the fourth connecting piece 36 with the insulating piece 37, on the one hand, the third connecting piece 35 and the fourth connecting piece 36 can be quickly disassembled; on the other hand, after the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 are connected in a stacked manner, the load is mainly borne by the flanges on the third connecting piece 35, the fourth connecting piece 36 and the insulating piece 37, thereby reducing the probability of hard damage of the first connecting piece 31, the second connecting piece 32, the third connecting piece 35, the fourth connecting piece 36 and the insulating piece 37, and further improving the stability of the stacked connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0149] In addition, in some embodiments of the present application, the energy storage valve tower further comprises a support platform (not shown in the figure), the second energy storage prefabricated cabin 20 is supported on the support platform, and the second energy storage prefabricated cabin 20 is connected to the support platform in an equipotential manner.

[0150] Specifically, the support platform can be but is not limited to a circular table, a square table, etc., the support surface of the support platform is a horizontal plane, a plurality of insulating pieces are arranged on the bottom periphery of the support platform, and the support platform can be directly placed on the ground. Of course, the support platform can also be detachably installed on the ground through the insulating pieces. The insulating piece can be an insulator, which is an insulating control device for forming good insulation between the power equipment or other conductors on the support platform and the ground. The insulator can be made of ceramic, glass or composite insulating material.

[0151] Similarly, a plurality of insulating pieces can be arranged on the bottom periphery of the second energy storage prefabricated cabin 20, and the second energy storage prefabricated cabin 20 is detachably installed on the support platform through the insulating pieces, for example, the second energy storage prefabricated cabin 20 is fixed on the support platform in a flange connection manner through the insulating pieces. The insulating piece also plays the role of electrical insulation.

[0152] The support platform is provided with an equipotential connecting body, which refers to a conductive body fixed on the support platform. The equipotential connecting body on the support platform is connected to each metal component on the second energy storage prefabricated cabin 20 through a connecting wire. Each metal component on the second energy storage prefabricated cabin 20 refers to a metal connecting terminal, a shell tip portion, a cooling pipeline and other structural components on the second energy storage prefabricated cabin 20.

[0153] Through the arrangement of the support platform, the support platform provides basic support for the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 connected in a stacked manner. As the main force bearing component at the bottom of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 connected in a stacked manner, the support platform strengthens the stability of the connection of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0154] By connecting the second energy storage prefabricated cabin 20 with the support platform at the same potential, the second energy storage prefabricated cabin 20 and the support platform at the bottom thereof form an equipotential body, the floating potential of the metal components on the second energy storage prefabricated cabin 20 is eliminated, and the stability and reliability of the energy storage valve tower in the corresponding high-pressure environment are strengthened.

[0155] In some embodiments of the present application, the first energy storage prefabricated cabin 10 is one of an energy storage container, an electrical cabinet, and a support frame. In this way, the adaptability of the connection structure 30 composed of the first connecting piece 31 and the second connecting piece 32 to different types of energy storage prefabricated cabin structures is improved.

[0156] The prefabricated cabin refers to an intelligent device cabin integrating functions such as device installation, operation, and maintenance, which can be used for the construction of a smart substation and can also be used for energy storage power systems such as hydroelectric, thermal, wind, and solar power stations.

[0157] The electrical cabinet refers to a power distribution cabinet, an electrical cabinet, an electrical control cabinet, etc. in the energy storage valve tower, which is used to protect and control power equipment to enable the energy storage valve tower to operate stably.

[0158] The support frame refers to a hollow rectangular frame used to install energy storage submodules such as electrical cabinets and other functional components in the energy storage valve tower.

[0159] Similarly, the second energy storage prefabricated cabin 20 is one of an energy storage container, an electrical cabinet, and a support frame, so as to improve the adaptability of the connection structure 30 composed of the first connecting piece 31 and the second connecting piece 32 to different types of energy storage prefabricated cabin structures.

[0160] In addition, the present application also provides an energy storage system, which comprises the energy storage valve tower of any one of the above embodiments.

[0161] The energy storage system of the present application can be understood as a device or system for storing and releasing energy, which aims to store energy when needed and release the stored energy when energy demand exceeds supply or energy supply is unstable to meet the demand. The energy storage system can be an energy storage power system such as a hydroelectric, thermal, wind, and solar power station.

[0162] Of course, in some embodiments, the energy storage system can also be directly understood as the energy storage valve tower of any one of the above embodiments.

[0163] Specifically, referring to Figure 9The energy storage system comprises a monitoring background 101, a system controller (Valve BaseController, VBC) 102, a plurality of energy storage sub-modules 103 (which can be understood as the first energy storage prefabricated cabin or the second energy storage prefabricated cabin), a battery management controller (Battery Management Controller, BMC) 104 and a sub-module controller (Sub-Module Controller, SMC) 105 corresponding to each energy storage sub-module (Sub-Module, SM) 103, and the battery management controller 104 and the sub-module controller 105 are one-to-one communication connection; the monitoring background 101 is communication connection with the system controller 102 and each battery management controller 104 respectively, and the system controller 102 is also communication connection with each sub-module controller 105 respectively; the battery management controller 104 is used for acquiring state information of the corresponding energy storage sub-module 103; the sub-module controller 105 is used for controlling the corresponding energy storage sub-module 103; the monitoring background 101 is used for state monitoring; and the system controller 102 is used for acquiring communication states of each communication path in the energy storage system and performing corresponding processing actions according to the communication states.

[0164] In the embodiment of the application, the energy storage system comprises a plurality of energy storage sub-modules 103, each energy storage sub-module 103 can be composed of a plurality of electric cabinets in series and / or parallel, each electric cabinet can be composed of a plurality of electric boxes in series and / or parallel, and each electric box can be composed of a plurality of batteries in series and / or parallel, as shown in the following figure. Figure 9

[0165] The energy storage system further comprises a battery management controller 104 corresponding to the energy storage sub-module 103, the battery management controller 104 can collect state information of the corresponding energy storage sub-module 103, and is responsible for detecting the state, performance and health state of the battery and the like. The above state information can include voltage, current, temperature, charging and discharging state, state of charge (State Of Charge, SOC), state of health (State of Health, SOH) and the like.

[0166] The energy storage system further comprises a sub-module controller 105 in one-to-one communication connection with the battery management controller 104. The battery management controller 104 can transmit the collected state information to the sub-module controller 105, and the sub-module controller 105 can also transmit control instructions to the battery management controller 104, so as to control the corresponding energy storage sub-module 103. For example, the energy storage sub-module 103 is controlled to be put into the energy storage system or cut out of the energy storage system, and the energy storage sub-module 103 can also be controlled to charge, discharge and the like.

[0167] ​The energy storage system further comprises a system controller 102 and a monitoring background 101, the system controller 102 is in communication connection with the plurality of submodule controllers 105 and the monitoring background 101 respectively, and the monitoring background 101 is also in communication connection with the plurality of battery management controllers 104. The system controller 102 can acquire the state information collected by the battery management controller 104 through the submodule controller 105 and transmit the state information to the monitoring background 101. The system controller 102 can also acquire the state information collected by the battery management controller 104 through the monitoring background 101. The system controller 102 can send control instructions to the submodule controller 105 according to the state information, so as to control each energy storage submodule 103. The system controller 102 can determine the communication state of each communication path and take corresponding processing actions when communication failure occurs. The monitoring background 101 can monitor the state of the system controller 102 through communication with the system controller 102, and also can monitor the state of the battery management controller 104 through communication with the battery management controller 104. The monitoring background 101 is mainly used for monitoring the state, and in some embodiments, the monitoring background 101 and the system controller 102 can be integrated into one hardware device as two components.

[0168] It can be understood that the energy storage system of the embodiment of the present application has better use reliability due to the configuration of the energy storage valve tower, and the stacked connection of the plurality of energy storage prefabricated cabins on the energy storage valve tower has good connection firmness and stability.

[0169] Referring to Figures 1 to 9 The embodiment of the present application provides an energy storage valve tower and an energy storage system.

[0170] The energy storage valve tower comprises a first energy storage prefabricated cabin 10, a second energy storage prefabricated cabin 20 and a connecting mechanism 30. The first energy storage prefabricated cabin 10 is used for installing energy storage batteries. The second energy storage prefabricated cabin 20 is used for installing energy storage batteries. The first energy storage prefabricated cabin 10 and the adjacent second energy storage prefabricated cabin 20 are connected by at least two connecting mechanisms 30. The connecting mechanism 30 comprises a first connecting piece 31 arranged at the bottom periphery of the first energy storage prefabricated cabin 10, and a second connecting piece 32 arranged at the top periphery of the second energy storage prefabricated cabin 20. The first connecting piece 31 and the second connecting piece 32 are connected by mortise and tenon connection.

[0171] The energy storage valve tower of the embodiment of the present application is capable of stably stacking and connecting the first energy storage prefabricated cabin 10 and the adjacent second energy storage prefabricated cabin 20 through the first connecting piece 31 and the second connecting piece 32 in a mortise and tenon connection manner, which simplifies the connecting operation of the plurality of energy storage prefabricated cabins, effectively improves the firmness and stability of the stacked connection of the plurality of energy storage prefabricated cabins, and reduces the probability of relative looseness or sliding of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20 after the stacked connection, and also reduces the hidden danger of overturning of the first energy storage prefabricated cabin 10 and the second energy storage prefabricated cabin 20.

[0172] The energy storage system of the embodiment of the present application has better use reliability due to the configuration of the energy storage valve tower.

[0173] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0174] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An energy storage valve tower, characterized in that, include: The first energy storage prefabricated compartment is used to install energy storage batteries. The second energy storage prefabricated compartment is used to install energy storage batteries; The first energy storage prefabricated module and the adjacent second energy storage prefabricated module are stacked and connected by at least two of the connecting mechanisms. The connecting mechanism includes: The first connector is located at the bottom periphery of the first energy storage prefabricated compartment; The second connector is located on the top periphery of the second energy storage prefabricated cabin, and the first connector and the second connector are connected by tenon and mortise joints.

2. The energy storage valve tower according to claim 1, characterized in that... , The first connector is located at the bottom corner of the first prefabricated energy storage compartment, and the second connector is located at the top corner of the second prefabricated energy storage compartment; and / or, The first connector is located at the bottom of the first energy storage prefabricated compartment, excluding the corners, and the second connector is located at the top of the second energy storage prefabricated compartment, excluding the corners.

3. The energy storage valve tower according to claim 1, characterized in that... , The first connector has a first opening and a limiting part that intersects with the first opening; The second connector includes a base and a locking member connected to the base. The locking member can pass through the first opening and rotate relative to the first opening to engage with the limiting part.

4. The energy storage valve tower according to claim 3, characterized in that... The first connector has a movable cavity inside that communicates with the first opening. The movable cavity is used for the locking member to move and rotate relative to the first connector.

5. The energy storage valve tower according to claim 4, characterized in that... The locking member includes an integrally connected head and a rod. The head extends into the movable cavity and is limited and engaged with the limiting part. The rod is detachably connected to the base, and the outer periphery of the head protrudes from the rod.

6. The energy storage valve tower according to claim 3, characterized in that... The base is provided with abutting part for the first connector to abut against, and the abutting part is configured to limit the circumferential movement of the first connector.

7. The energy storage valve tower according to claim 6, characterized in that... The connecting mechanism further includes a shock absorber, which is disposed on the abutment portion and is used to provide elastic cushioning for the first connecting member.

8. The energy storage valve tower according to claim 7, characterized in that... The shock absorber is constructed as a disc spring structure.

9. The energy storage valve tower according to claim 3, characterized in that, The connecting mechanism further includes a stop component configured to restrict the movement of the locking member relative to the first connecting member and to release the restriction on the locking member.

10. The energy storage valve tower according to claim 9, characterized in that, The stop assembly includes a stop member and a plug portion formed on the locking member, wherein the stop member passes through the first connector and is plugged into the plug portion.

11. The energy storage valve tower according to claim 10, characterized in that, The stop member has a fastening part at one end away from the insertion part, and the outer wall of the first connector has a second opening through which the stop member passes, and the fastening part can be fastened to the second opening.

12. The energy storage valve tower according to any one of claims 3 to 10, characterized in that, The locking element is also connected to the base key.

13. The energy storage valve tower according to any one of claims 1 to 12, characterized in that, The connecting mechanism further includes a third connector, a fourth connector, and an insulating component. The third connector and the fourth connector are respectively disposed at both ends of the insulating component. The third connector is mortised and tenoned with the first connector, and the fourth connector is mortised and tenoned with the second connector.

14. The energy storage valve tower according to claim 13, characterized in that... Both the third and fourth connectors are connected to the flange of the insulating component.

15. The energy storage valve tower according to any one of claims 1 to 12, characterized in that... The energy storage valve tower also includes a support platform, the second energy storage prefabricated compartment is supported on the support platform, and the second energy storage prefabricated compartment is equipotentially connected to the support platform.

16. The energy storage valve tower according to any one of claims 1 to 12, characterized in that... The first prefabricated energy storage compartment is one of an energy storage container, an electrical cabinet, or a support frame; and / or, the second prefabricated energy storage compartment is one of an energy storage container, an electrical cabinet, or a support frame.

17. An energy storage system, characterized in that, Including the energy storage valve tower as described in any one of claims 1 to 16.

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