Energy storage device

Abstract

An energy storage device. The energy storage device comprises at least two stacking modules. The at least two stacking modules are vertically stacked together. Two stacking modules stacked adjacent to each other are laterally positioned by means of a protrusion (207) being disposed in a recess (208), and are electrically connected by means of plug insertion between a first electrical plug interface (209) and a second electrical plug interface (210). The protrusion (207) and the recess (208) are respectively provided on the bottom surface of the upper stacking module and the top surface of the lower stacking module stacked adjacent to the upper stacking module.

Description

Energy storage device

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 202322953521.6, filed on November 1, 2023, entitled “Energy Storage Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to mobile power supply technology, and specifically to an energy storage device. Background Art

[0004] When working outdoors, due to the lack of electricity at the work site, it is usually necessary to use a mobile power supply. In the related art, even if the energy part of the energy storage device can be stacked, the controller and the energy part are mostly made together. The controller is not easy to disassemble. When a fault occurs and needs to be repaired, the energy part and the controller often need to be transported together. The transportation burden is heavy, and the energy part is flammable and explosive. Due to policy reasons, it may be rejected by a third party for mail transportation, resulting in inconvenience in return for repair. In addition, when the existing energy storage device stacks the energy parts together, it is necessary to use an external cable to connect the various energy parts. It is inconvenient to use and operate, and it is easy to be restricted in space. After connection, it is easy to be pulled out of the connection, and the cable is easy to lose.

[0005] Summary of the Invention

[0006] According to various embodiments of the present application, an energy storage device is provided.

[0007] An energy storage device includes at least two stacking modules, one of which is a control module and the other is an energy module. The at least two stacking modules are stacked up and down together. The two adjacent stacking modules are laterally positioned by a protrusion located in a groove and electrically connected by plugging a first electrical plug interface into a second electrical plug interface. The protrusion and the groove are separately arranged on the bottom surface of the upper stacking module and the top surface of the lower stacking module of the adjacent stack.

[0008] In some embodiments, the groove and the first electrical plug interface are located on the top surface of the lower stacking module, the protrusion and the second electrical plug interface are located on the bottom surface of the upper stacking module, and the second electrical plug interface protrudes from the bottom surface of the upper stacking module and the height of the protrusion is no greater than the height of the protrusion protruding from the bottom surface of the upper stacking module.

[0009] In some embodiments, the first electrical plug interface and / or the second electrical plug interface are provided with a protective cap.

[0010] In some embodiments, the energy module has a detachable cover, and a detachable controller is disposed inside the cover.

[0011] In some embodiments, the control module is configured with at least a power supply interface and a control switch.

[0012] In some embodiments, the energy module is configured with wheels and a pull rod.

[0013] In some embodiments, two adjacent stacking modules are locked together by a lock to prevent them from being separated in the vertical direction.

[0014] In some embodiments, the lock is configured to move laterally on a stacking module of an adjacent stack. The lock has a transverse latch portion, and a transverse socket is provided on another stacking module of the adjacent stack. The transverse latch portion is inserted into the transverse socket to lock the two stacking modules of the adjacent stack together.

[0015] In some embodiments, the transverse latch portion is inserted into the transverse insertion hole by the elastic force of a first elastic element, and the first elastic element acts on the lock buckle and the stacking module configured with the lock buckle.

[0016] In some embodiments, a bevel is provided on the lock, and another stacking module is provided with a push portion pointing to the bevel. When the two stacking modules are stacked together, the push portion squeezes the bevel to first force the lock to move laterally to make way, and then the horizontal latch portion is inserted into the horizontal insertion hole by the elastic force of the first elastic element.

[0017] In some embodiments, a stopper is swingably configured on the lock, and a second elastic element acts on the stopper; the stopper and the second elastic element are configured as follows: when the transverse pin portion is disengaged from the transverse insertion hole, the stopper is tilted and protrudes from the lock portion by the elastic force of the second elastic element and laterally presses against another stacking module to prevent the transverse pin portion from being inserted into the transverse insertion hole by the elastic force of the first elastic element; when the two stacking modules are stacked together, the other stacking module squeezes the stopper and overcomes the elastic force of the second elastic element to force the stopper to retract into the lock, thereby releasing the obstruction for the transverse pin portion to be inserted into the transverse insertion hole by the elastic force of the first elastic element.

[0018] In some embodiments, another stacking module is provided with a pressing portion pointing toward the stopper, so that when the two stacking modules are stacked together, the pressing portion squeezes the stopper and overcomes the elastic force of the second elastic element to force the stopper to retract into the lock.

[0019] In some embodiments, the stopper is limited to the lock buckle in the direction of the elastic force of the second elastic element.

[0020] In some embodiments, the lock buckle is configured in a recess, and constraint grooves are provided on both sides of the recess, and blocking edges are provided at the ends of the constraint grooves. Elastic claws are provided on both sides of the lock buckle, and the two side portions of the lock buckle are located in the corresponding constraint grooves and the elastic claws elastically contact the side walls of the constraint grooves. The ends of the elastic claws are blocked by the blocking edges to prevent the lock buckle from falling out of the recess.

[0021] In some embodiments, a lock buckle is flipped over and configured on one stacking module of an adjacent stack. The lock buckle has a hook, and a hook portion is provided on another stacking module of the adjacent stack. The hook of the lock buckle hooks the hook portion, thereby locking the two stacking modules together. Accordingly, after the two stacking modules are stacked together, the lock buckle is manually flipped over so that the hook hooks the hook portion, thereby locking the two stacking modules together.

[0022] The present application stacks the stacking modules together up and down, and the two adjacent stacking modules are positioned laterally by means of a protrusion located in a groove, and are electrically connected by means of a first electrical plug interface and a second electrical plug interface. The protrusion and the groove are separately provided on the bottom surface of the upper stacking module and the top surface of the lower stacking module of the adjacent stack. When the control module needs to be repaired, the control module can be disassembled and delivered to a third party for mail transportation, and the transportation burden is small and not subject to policy restrictions. Moreover, when the stacking modules are stacked together, the first electrical plug interface and the second electrical plug interface are plugged together to achieve electrical connection, without the need for external cable connection. It is easy to use and operate, not easy to disconnect, and not subject to space restrictions. In this stacking method, the stacking modules stacked together will not be dislocated laterally, thereby ensuring reliable continuous flight.

[0023] The present application prevents the stacked modules from being separated in the vertical direction by locking two adjacent stacked modules together with a lock, thereby avoiding the stacked modules from being detached. The stacking process can be relied upon for self-locking or can be locked manually after the stacking is completed.

[0024] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to better describe and illustrate the embodiments and / or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the accompanying drawings should not be considered to limit the scope of the disclosed inventions, the presently described embodiments and / or examples, and any of the best modes currently understood for these inventions.

[0026] FIG1 is a schematic diagram of a stacking relationship of energy storage devices according to one or more embodiments.

[0027] FIG. 2 is a schematic diagram of the stacking relationship of the energy storage devices in FIG. 1 from another perspective.

[0028] FIG3 is an enlarged view of portion A in FIG1 .

[0029] FIG4 is an enlarged view of portion B in FIG2 .

[0030] FIG5 is a schematic diagram of the energy storage devices shown in FIG1-2 stacked together.

[0031] FIG6 is a schematic diagram of an orthographic projection of the energy storage device shown in FIG5 from one viewing angle.

[0032] FIG7 is an enlarged partial cross-sectional view taken along the line AA in FIG6 .

[0033] FIG8 is a schematic diagram of a stackable energy module of the present application.

[0034] FIG. 9 is a schematic diagram of the structure shown in FIG. 8 from another perspective.

[0035] FIG10 is a partial enlarged orthographic projection schematic diagram of the lock shown in FIG8 .

[0036] FIG11 is an enlarged cross-sectional view taken along line BB in FIG10 .

[0037] FIG12 is an enlarged CC sectional view of FIG10 .

[0038] FIG13 is a cross-sectional view taken along the line DD in FIG11 .

[0039] FIG14 is a schematic diagram of the disassembly and assembly relationship of the lock of the energy module shown in FIG8-9.

[0040] FIG. 15 is a schematic diagram of the structure shown in FIG. 14 from another perspective.

[0041] FIG16 is a schematic diagram of the lock shown in FIG14-15.

[0042] FIG. 17 is a schematic diagram of the structure shown in FIG. 16 from another perspective.

[0043] FIG18 is a schematic diagram of the structural decomposition of the lock shown in FIG16-17.

[0044] FIG19 is a schematic diagram of the structure shown in FIG18 from another perspective.

[0045] FIG. 20 is a schematic diagram of energy storage devices stacked together according to one or more embodiments.

[0046] FIG. 21 is a schematic structural diagram of a lock according to one or more embodiments.

[0047] FIG22 is a schematic diagram showing the configuration of the controller of the energy module of the present application.

[0048] 23 is a partial cross-sectional view of an energy storage device in a locked state according to one or more embodiments.

[0049] 24 is a partial cross-sectional view of an energy storage device in an unlocked state according to one or more embodiments.

[0050] 25 is a partial cross-sectional view of an energy storage device in a locked state according to one or more embodiments.

[0051] 26 is a partial cross-sectional view of an energy storage device in an unlocked state according to one or more embodiments.

[0052] Description of the numbers in the figure:

[0053] 100 control module, 101 power supply interface, 102 control switch,

[0054] 201 first energy module; 202 second energy module; 203 cover plate; 204 controller; 205 wheel; 206 pull rod; 207 protrusion; 208 groove; 209 first electrical plug interface; 210 second electrical plug interface; 211 transverse insertion hole; 212 pushing portion; 213 pressing portion; 214 recess; 215 restraining groove; 216 blocking edge; 217 side wall; 218 hooking portion;

[0055] 300 lock; 301 transverse latch portion; 302 first elastic element; 303 inclined surface; 304 stopper; 305 second elastic element; 306 elastic claw; 307 side portion; 308 hook;

[0056] 30 first matching structure; 31 first matching member; 32 second movable member; 321 base; assembly groove 3204; positioning block 324;

[0057] 40 second matching structure; 41 second matching component; 43 stop portion. DETAILED DESCRIPTION

[0058] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0059] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a method or product that includes a series of technical features is not necessarily limited to those technical features clearly listed, and may also include other technical features that are not clearly listed and can be included in the method or product.

[0060] In the description of this application, it should be understood that the terms "upper" and "lower" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. "Up" and "down" are opposite directions.

[0061] In the description of this application, it should be understood that the technical features defined by terms such as "first" and "second" with sequential concepts are only used to clearly describe the defined technical features so that the defined technical features can be clearly distinguished from other technical features, and do not represent such naming in actual implementation. Therefore, it cannot be understood as a limitation on this application.

[0062] The present application is described in detail below with reference to specific embodiments and accompanying drawings.

[0063] In one embodiment, as shown in Figures 1-7, the energy storage device includes two stacked modules: one is a control module 100, and the other is a first energy module 201. The control module 100 is equipped with a power supply interface 101, a control switch 102, and other interfaces for external power supply, such as a USB port. The first energy module 201 integrates a battery. Therefore, the stored energy of the first energy module 201 is output externally through the control module 100. The control module 100 and the first energy module 201 are stacked together, with the control module 100 on top and the first energy module 201 on the bottom. The control module on top is referred to as the upper stacked module, and the first energy module on the bottom is referred to as the lower stacked module. The control module 100 and the first energy module 201 are laterally positioned by a protrusion 207 located within a groove 208. The protrusion 207 is provided on the bottom surface of the control module 100, and the groove 208 is provided on the top surface of the first energy module 201. Furthermore, the control module 100 and the first energy module 201 are electrically connected via the first electrical connector 209 and the second electrical connector 210. The first electrical connector 209 is located on the top surface of the first energy module 201, while the second electrical connector 210 is located on the bottom surface of the control module 100. The second electrical connector 210 protrudes from the bottom surface of the control module 100, similar to the protrusion 207, and the height of the protrusion is no greater than the height of the protrusion 207. When the control module 100 is placed on the ground using the protrusion 207 as a support, the second electrical connector 210 is not subjected to force and is protected from damage. Both the first electrical connector 209 and the second electrical connector 210 are equipped with protective caps to prevent water and damage.

[0064] The first energy module 201 is equipped with wheels 205 and a pull rod 206 , and the pull rod 206 is used to drag the first energy module 201 or the stacked first energy modules 201 and the control module 100 to move.

[0065] As shown in FIG. 22 , the first energy module 201 has a detachable cover plate 203 , and a detachable controller 204 is disposed inside the cover plate 203 .

[0066] Therefore, the energy storage device shown in Figures 1-7 can be separated from the flammable and explosive first energy module 201 for mail transportation, regardless of whether the control module 100 or the controller 204 within the first energy module 201 requires maintenance. This allows for unrestricted and minimal shipping. When stacked, electrical connection is automatically established by plugging the first electrical connector 209 into the second electrical connector 210.

[0067] To prevent accidental separation of stacking modules, two adjacent stacking modules are locked together by a lock 300 to prevent them from separating vertically. Thus, the two adjacent stacking modules cannot separate vertically or laterally due to the locking of the lock 300 and the positioning of the protrusion 207 and the groove 208, and can be firmly combined.

[0068] In this embodiment, a locking buckle 300 is disposed on two opposing edges of the top surface of the first energy module 201, and the locking buckle 300 is capable of lateral movement on the first energy module 201. The locking buckle 300 has a transverse latch portion 301. The stacked control modules 100 are provided with transverse insertion holes 211. The transverse latch portion 301 is inserted into the transverse insertion holes 211 to lock the stacked first energy module 201 and control module 100 together. In other embodiments, the locking buckle 300 and the transverse insertion holes 211 can be interchanged.

[0069] The transverse latch portion 301 is inserted into the transverse insertion hole 211 by the elastic force of the first elastic element 302 . The first elastic element 302 is two helical compression springs that are laterally supported on the lock buckle 300 and the first energy module 201 .

[0070] As shown in Figures 16-19, the lock buckle 300 is provided with a slope 303, and the control module 100 is provided with a push portion 212 pointing to the slope 303. When the control module 100 is stacked on the first energy module 201, the push portion 212 squeezes the slope 303 to first force the lock buckle 300 to move horizontally to make way, and then the horizontal latch portion 301 is inserted into the horizontal insertion hole 211 by the elastic force of the first elastic element 302.

[0071] As shown in Figures 16-19, a stopper 304 is swingably configured on the lock buckle 300. The stopper 304 is assembled on the lock buckle 300 by rotating the pin shaft to achieve swing. A second elastic element 305 acts on the stopper 304. The second elastic element 305 is a pagoda-shaped helical compression spring. The pagoda-shaped helical compression spring is upright and the two ends of the pagoda-shaped helical compression spring are respectively supported on the lock buckle 300 and the stopper 304 to apply an upward elastic force to the stopper 304. According to this assembly method, the block 304 and the second elastic element 305 are configured as follows: when the transverse pin portion 301 is disengaged from the transverse socket 211, the block 304 is lifted up and protrudes from the lock buckle 300 by the elastic force of the second elastic element 305 and presses against the control module 100 laterally to prevent the transverse pin portion 301 from being inserted into the transverse socket 211 by the elastic force of the first elastic element 302; when the control module 100 and the first energy module 201 are stacked together, the control module 100 squeezes the block 304 and overcomes the elastic force of the second elastic element 305 to force the block 304 to swing downward and retract into the lock buckle 300, thereby releasing the said obstruction for the transverse pin portion 301 to be inserted into the transverse socket 211 by the elastic force of the first elastic element 302.

[0072] In some embodiments, the control module 100 is provided with a pressing portion 213 directed toward the stopper 304. Moreover, the swing end of the stopper 304 is blocked by the lock 300, thereby being limited to the lock in the elastic direction of the second elastic element 305.

[0073] The first energy module 201 is provided with a recess 214, and the lock buckle 300 is disposed in the recess 214. Specifically, the recess 214 is provided with a restraining groove 215 on both sides, and a blocking edge 216 is provided at the end of the restraining groove 215. Elastic claws 306 are provided on both sides of the lock buckle 300. The two side portions 307 of the lock buckle are located in the corresponding restraining grooves 215, and the elastic claws 306 elastically contact the side walls of the restraining grooves 215. The ends of the elastic claws 306 are blocked by the blocking edge 216 to prevent the lock buckle from escaping from the recess.

[0074] In the energy storage device shown in Figures 1-7, when the first energy module 201 is separated from the control module 100 as shown in Figure 1-2, the latch 300 is locked by the elastic force of the first elastic element. To stack the control module 100 on the first energy module 201 from the position shown in Figures 1-2, the control module 100 is stacked on the first energy module 201, with the protrusion 207 facing the groove 208 and the second electrical connection 210 facing the first electrical connection 209. During this process, the compression portion 213 of the control module compresses the block 304, and the pushing portion 212 of the control module 100 squeezes the inclined surface 303, first forcing the lock 300 to move laterally to make way, and then the horizontal latch portion 301 is inserted into the horizontal insertion hole 211 by the elastic force of the first elastic element 302, reaching the state shown in Figures 6-7. At this time, the control module 100 and the first energy module 201 are positioned laterally by the cooperation of the protrusion 207 and the groove 208. The control module 100 and the first energy module 201 are locked together by the lock to prevent the two from separating in the up and down directions, thereby forming the control module 100 and the first energy module 201 into a whole.

[0075] When the control module 100 is to be removed from the first energy module 201 in the state shown in Figures 6-7, the lock 300 is pulled outward until the block 304 moves out of the compression portion 213 of the control module and the transverse latch portion 301 exits the transverse insertion hole 211. The block 304 then swings upward under the elastic force of the second elastic element 305 and laterally abuts against the compression portion 213 to prevent the transverse latch portion 301 from being inserted into the transverse insertion hole 211. In this state, the control module 100 can be moved upward from the first energy module 201 to be separated from the first energy module 201.

[0076] In one embodiment, as shown in Figure 20, the energy storage device includes three stacked modules, one stacked module is the control module 100, and the other two stacked modules are the first energy module 201 and the second energy module 202. Compared with Example 1, this embodiment includes a second energy module 202 as shown in Figures 8-15, the bottom surface of the second energy module 201 is provided with a protrusion 207, a first electrical plug interface 209 and a horizontal plug hole 211, and the top surface of the second energy module 202 is provided with a groove 208, a second electrical plug interface 210 and a lock 300. In this embodiment, the second energy module 202 is placed between the first energy module 201 and the control module 100. The rest of the structure is the same as that of Example 1 and is not described in detail. In view of the structure of the second energy module 202, two or more second energy modules 202 can be stacked together one by one. Therefore, in other embodiments, the energy storage device can be embodied as a situation in which one control module 100 and three or more energy modules are stacked.

[0077] In one embodiment, as shown in FIG21 , a locking mechanism is provided. In this embodiment, a locking mechanism 300 is configured on one stacking module by axial rotation. The locking mechanism 300 includes a hook 308. A hook portion 218 is provided on another stacking module. The hook 308 engages the hook portion 218, locking the two stacking modules together. Thus, the locking mechanism 300 of this embodiment can be used to lock adjacent stacking modules together.

[0078] To stack two stacking modules together, first place the upper stacking module on the lower stacking module and then lock the upper and lower stacking modules with the lock 300. To separate two adjacent stacking modules, first unlock the lock 300 and then move the upper stacking module upwards away from the lower stacking module.

[0079] In one embodiment, as shown in Figures 23-24, the locking structure is replaced by a magnetic structure. The upper stacking module is provided with a first mating structure 30, and the lower stacking module is provided with a second mating structure 40. The first mating structure 30 and the second mating structure 40 have a locked state and an unlocked state. In the locked state, the first mating structure 30 and the second mating structure 40 are locked to connect the upper stacking module and the lower stacking module. In the unlocked state, the first mating structure 30 and the second mating structure 40 can be unlocked. The first mating structure 30 and the second mating structure 40 are unlocked and / or locked by magnetic force.

[0080] By setting up a first matching structure 30 and a second matching structure 40, the present application can utilize the matching between the first matching structure 30 and the second matching structure 40 to effectively connect the upper stacking module and the lower stacking module, thereby improving the stability during stacking, and can fully utilize the storage space while ensuring transportation stability and safety after stacking.

[0081] The position of the first mating structure 30 and the second mating structure 40 in the locked state is defined as the locked position, and the position in the unlocked state is defined as the unlocked position, wherein the first mating structure 30 and the second mating structure 40 realize the positioning of the unlocked position and / or the locked position through magnetic force.

[0082] The first matching structure 30 includes a first matching piece 31 , and the second matching structure 40 includes a second matching piece 41 . The first matching piece 31 and the second matching piece 41 are matched together by magnetic attraction.

[0083] Furthermore, in one embodiment, one of the first mating structure 30 and the second mating structure 40 is configured with a magnet, and the other is configured with a ferromagnet. That is, one of the first mating component 31 and the second mating component 41 is configured as a magnet, and the other is configured as a ferromagnet. In this way, magnetic attraction between the first mating component 31 and the second mating component 41 can be achieved.

[0084] It should be noted that a magnet is an object that can generate a magnetic field. A ferromagnet is an object with ferromagnetic properties that can be attracted by a magnetic field. It is usually made of materials such as iron, cobalt, nickel, or alloys, or a polymer material with these components, such as an iron-plastic part.

[0085] In another embodiment, magnets may be configured in both the first mating structure 30 and the second mating structure 40 , that is, the first mating piece 31 and the second mating piece 41 may be configured as magnets, so that magnetic attraction or magnetic repulsion of the first mating piece 31 and the second mating piece 41 can be achieved.

[0086] In other embodiments, electromagnets may be configured within the first mating structure 30 and / or the second mating structure 40. That is, the first mating member 31 and / or the second mating member 41 may be configured as electromagnets. By applying an electric current, the first mating member 31 and / or the second mating member 41 may generate magnetism, thereby providing greater flexibility in mating. Here, the example of both the first mating member 31 and the second mating member 41 being electromagnets is used for illustration.

[0087] In one embodiment, the first mating structure 30 further includes a first movable member 32, which is movably connected to the upper stacking module. The first mating member 31 is mounted on the first movable member 32. In other words, in this embodiment, the first movable member 32 drives the first mating member 31 to move, thereby achieving locking and unlocking between the first mating structure 30 and the second mating structure 40. In other words, the position between the second mating member 41 and the lower stacking module remains essentially unchanged, so external force is required to move the first movable member 32 to achieve unlocking.

[0088] The first movable member 32 is slidably connected to the upper stacking module in the horizontal direction. The first matching member 31 and the second matching member 41 are magnetically matched in the vertical direction. Here, the first matching member 31 and the second matching member 41 can be magnetically matched in a locked state.

[0089] When the first and second mating members 31 and 41 are magnetically engaged in the locked state, the magnetic attraction forces acting on them position the first and second mating structures 30 and 40. To unlock, an external force is applied to move the first movable member 32, displacing the first and second mating members 31 and 41. Alternatively, an electromagnet could be used to dissipate the magnetic force of the first or second mating member 31, 41, and allow the first movable member 32 to move, achieving automatic unlocking.

[0090] In one embodiment, the first movable member 32 includes a base 321, which is movably connected to the upper stacking module. The base 321 defines a mounting slot 3201, into which the first mating member 31 is received. This allows the first mating member 31 to be mounted on the base 321. The mounting slots 3201 can be located in the center of the base 321 or arranged symmetrically.

[0091] In one embodiment, as shown in Figures 25-26, the first movable member 32 further includes a positioning block 324. The base 321 defines a mounting groove 3201. The positioning block 324 is installed in the mounting groove 3201 and is movably connected to the base 321. In addition, at least a portion of the positioning block 324 can protrude from the mounting groove 3201. Specifically, at least a portion of the positioning block 324 forms the first mating member 31, or the first mating member 31 is mounted on the positioning block 324.

[0092] The positioning block 324 can move within the assembly slot 3201 as shown in Figures 25 and 26 . One end of the positioning block 324 is rotatably connected to the base 321, creating line or surface contact between the positioning block 324 and the second mating member 41. This allows the positioning block 324 to move in the lateral direction, thereby ensuring proper mating and positioning between the first mating member 31 and the second mating member 41.

[0093] The second mating structure 40 further includes a stopper 43 disposed on the lower stacking module 20, and the stopper 43 may be disposed proximate to the second mating member 41. When the first mating member 31 and the second mating member 41 are magnetically attracted to each other, the positioning block 324 is at least partially stopped by the stopper 43, thereby limiting the movement of the first movable member 32 and maintaining its position. This provides a more reliable positioning effect.

[0094] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An energy storage device, comprising at least two stacked modules, one of which is a control module and the other stacked modules are energy modules, characterized in that: The at least two stacking modules are stacked together up and down, wherein the two adjacent stacking modules are laterally positioned by a protrusion located in a groove and electrically connected by plugging a first electrical plug interface into a second electrical plug interface, and the protrusion and the groove are separately arranged on the bottom surface of the upper stacking module and the top surface of the lower stacking module of the adjacent stack.

2. The energy storage device according to claim 1, wherein: The first electrical plug interface and the second electrical plug interface are separately disposed on the bottom surface of the adjacently stacked upper stacking module and the top surface of the lower stacking module.

3. The energy storage device according to claim 1, wherein: The groove and the first electrical plug interface are located on the top surface of the lower stacking module, the protrusion and the second electrical plug interface are located on the bottom surface of the upper stacking module, and the second electrical plug interface protrudes from the bottom surface of the upper stacking module and the protruding height is not greater than the height of the protrusion protruding from the bottom surface of the upper stacking module.

4. The energy storage device according to claim 1, wherein: The first electrical plug interface and / or the second electrical plug interface is provided with a protective cap.

5. The energy storage device according to claim 1, wherein: The energy module has a detachable cover plate, and a detachable controller is arranged inside the cover plate.

6. The energy storage device according to claim 1, wherein: The control module is at least configured with a power supply interface and a control switch.

7. The energy storage device according to claim 1, wherein: The energy module is equipped with wheels and a pull rod.

8. The energy storage device according to any one of claims 1 to 7, wherein: Two adjacent stacking modules are locked together by a lock to prevent them from being separated in the up and down directions.

9. The energy storage device according to claim 8, wherein: The lock buckle is laterally movable and configured on a stacking module of an adjacent stack. The lock buckle has a transverse latch portion. Another stacking module of the adjacent stack is provided with a transverse insertion hole. The transverse latch portion is inserted into the transverse insertion hole to lock the two stacking modules of the adjacent stack together.

10. The energy storage device according to claim 9, wherein: The transverse latch portion is inserted into the transverse insertion hole by the elastic force of a first elastic element, and the first elastic element acts on the lock buckle and the stacking module configured with the lock buckle.

11. The energy storage device according to claim 10, wherein: The lock buckle is provided with an inclined surface, and another stacking module is provided with a push portion pointing to the inclined surface. When the two stacking modules are stacked together, the push portion squeezes the inclined surface to first force the lock buckle to move laterally to give way, and then the transverse latch portion is inserted into the transverse insertion hole through the elastic force of the first elastic element.

12. The energy storage device according to claim 10, wherein: A stopper is swingably arranged on the lock buckle, and a second elastic element acts on the stopper; The block and the second elastic element are configured such that when the transverse latch portion is removed from the transverse insertion hole, the block is tilted up by the elastic force of the second elastic element to protrude from the lock buckle and laterally abut against another stacking module to prevent the transverse latch portion from being inserted into the transverse insertion hole by the elastic force of the first elastic element; When two stacking modules are stacked together, the other stacking module presses the stopper and overcomes the elastic force of the second elastic element to force the stopper to retract into the lock buckle, thereby releasing the obstruction and allowing the transverse latch portion to be inserted into the transverse insertion hole by the elastic force of the first elastic element.

13. The energy storage device according to claim 11, wherein: The other stacking module is provided with a pressing portion directed toward the stopper.

14. The energy storage device according to claim 11, wherein: The stopper is limited to the lock buckle in the elastic force direction of the second elastic element.

15. The energy storage device according to claim 9, wherein: The lock buckle is configured in a recess, and constraint grooves are provided on both sides of the recess, and blocking edges are provided at the ends of the constraint grooves. Elastic claws are provided on both side surfaces of the lock buckle, and the two side portions of the lock buckle are located in the corresponding constraint grooves and the elastic claws are elastically in contact with the side walls of the constraint grooves, and the ends of the elastic claws are blocked by the blocking edges to prevent the lock buckle from escaping from the recess.

16. The energy storage device according to claim 8, wherein: The lock buckle is flipped and configured on one stacking module of the adjacent stack. The lock buckle has a hook. A hooking portion is provided on another stacking module of the adjacent stack. The hook of the lock buckle hooks the hooking portion to lock the two stacking modules of the adjacent stack together.

17. The energy storage device according to any one of claims 1 to 7, wherein: The upper stacking module is provided with a first matching structure, and the lower stacking module is provided with a second matching structure; The first matching structure and the second matching structure have a locked state and an unlocked state, and in the locked state, the first matching structure and the second matching structure are locked to connect the upper stacking module and the lower stacking module; In the unlocked state, the first mating structure and the second mating structure can be unlocked; Wherein, the first matching structure and the second matching structure are unlocked and / or locked by magnetic force.

18. The energy storage device according to claim 17, wherein: The first matching structure includes a first matching piece, the second matching structure includes a second matching piece, and the first matching piece and the second matching piece are matched by magnetic attraction.

19. The energy storage device according to claim 18, wherein: The first matching structure further includes a first movable member, and the first movable member is movably connected to the upper stacking module; Wherein, the first matching part is installed on the first movable part.

20. The energy storage device according to claim 19, wherein: The first movable member includes a base, and the base is movably connected to the upper stacking module.

21. The energy storage device according to claim 20, wherein: The second matching piece is installed on the lower stacking module, and the first matching piece and the second matching piece are matched by magnetic attraction.

22. The energy storage device according to claim 21, wherein: The first movable member is slidably connected to the upper stacking module along a lateral direction; the first matching member and the second matching member are magnetically matched along a vertical direction.

23. The energy storage device according to claim 22, wherein: The base is provided with an assembly groove, and the first matching piece is accommodated in the assembly groove; or, the first movable piece also includes a positioning block, the base is provided with an assembly groove, the positioning block is installed in the assembly groove and is movably connected to the base, and at least a part of the positioning block can protrude from the assembly groove; wherein, at least a part of the positioning block forms the first matching piece, or, the first matching piece is installed on the positioning block.

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