Rectangular distributed micro-storage device and energy storage system

Abstract

The utility model provides a rectangular distributed micro-storage device and an energy storage system, and the micro-storage device comprises a rectangular housing; the battery module is arranged in the rectangular shell, the battery module comprises a first frame, a second frame and a plurality of cylindrical battery cells, the first frame and the second frame are arranged at intervals in the thickness direction of the rectangular shell, and the cylindrical battery cells are clamped between the first frame and the second frame in the thickness direction of the rectangular shell; the plurality of cylindrical battery cells are distributed in a matrix shape along the plane direction of the rectangular shell; the control module is electrically connected with the cylindrical battery cell, the control module is arranged in the rectangular shell, and the control module and the battery module are arranged at intervals in the length direction in the plane direction of the rectangular shell. According to the rectangular distributed micro-storage device and the energy storage system disclosed by the invention, the micro-storage device is relatively small in size and relatively regular in rectangular structure, so that flexible adaptation of the micro-storage device is realized, and different energy storage requirements are met.

Description

Technical Field

[0001] The present disclosure relates to the field of energy storage technology, and in particular to a rectangular distributed micro storage device and an energy storage system. Background Art

[0002] Distributed micro-storage is similar to a micro-energy storage power station, whose operation is unaffected by the pressure of urban power supply. During low-demand periods, micro-storage devices can recharge themselves to provide backup power during peak hours or power outages. In addition to serving as an emergency power source, micro-storage devices can also help balance electricity demand, thereby saving electricity costs.

[0003] However, existing distributed micro-storage devices have complex structures, poor flexibility, and low adaptability, making it difficult to meet different energy storage needs. Summary of the Invention

[0004] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the present disclosure is to provide a rectangular distributed micro storage device and energy storage system.

[0006] To achieve the above-mentioned purpose, the first aspect of the present disclosure provides a rectangular distributed micro-storage device, comprising: a rectangular shell; a battery module, the battery module is arranged in the rectangular shell, and the battery module comprises: a first frame, a second frame and a plurality of cylindrical battery cells, the first frame and the second frame are arranged at intervals along the thickness direction of the rectangular shell, and the cylindrical battery cells are clamped between the first frame and the second frame along the thickness direction of the rectangular shell, and the plurality of cylindrical battery cells are distributed in a matrix shape along the plane direction of the rectangular shell; a control module, the control module and the cylindrical battery cells are electrically connected, and the control module is arranged in the rectangular shell, and the control module and the battery module are arranged at intervals along the length direction in the plane direction of the rectangular shell.

[0007] Optionally, the battery module also includes: a plurality of threaded rods, which penetrate the first frame and the second frame along the thickness direction of the rectangular shell, and are distributed at circumferential intervals along the first frame and the second frame; a plurality of first nuts, which are threaded on the threaded rods, and the first nuts abut against the side of the first frame away from the second frame; and a plurality of second nuts, which are threaded on the threaded rods, and the second nuts abut against the side of the second frame away from the first frame.

[0008] Optionally, a plurality of first slots spaced circumferentially between the first frame and the second frame are provided on a side of the first frame away from the second frame, and the first nut is located in the first slot; a plurality of second slots spaced circumferentially between the first frame and the second frame are provided on a side of the second frame away from the first frame, and the second nut is located in the second slot.

[0009] Optionally, the first frame is provided with a plurality of first card slots distributed in a matrix shape along the plane direction of the rectangular shell, and the second frame is provided with a plurality of second card slots distributed in a matrix shape along the plane direction of the rectangular shell, and the first card slots and the second card slots are arranged opposite to each other; wherein, one end of the cylindrical battery cell is clamped in the first card slot, and the end of the cylindrical battery cell away from the first card slot is clamped in the second card slot.

[0010] Optionally, the battery module further includes: a plurality of positive bus plates, the positive bus plates being arranged on a side of the first frame away from the second frame, and the positive bus plates being electrically connected to the positive pole of at least one of the cylindrical battery cells; and a plurality of negative bus plates, the negative bus plates being arranged on a side of the second frame away from the first frame, and the negative bus plates being electrically connected to the negative pole of at least one of the cylindrical battery cells.

[0011] Optionally, the micro storage device further includes: a plurality of first thermally conductive colloids, the first thermally conductive colloids being arranged between a side of the first frame away from the second frame and an inner wall of the rectangular shell; and / or a plurality of second thermally conductive colloids, the second thermally conductive colloids being arranged between a side of the second frame away from the first frame and an inner wall of the rectangular shell.

[0012] Optionally, the micro storage device further includes: a plurality of heat-conducting fins, the heat-conducting fins being arranged on the outer wall of the rectangular shell, and the plurality of heat-conducting fins being distributed at intervals.

[0013] Optionally, the micro storage device further comprises: an isolating explosion-proof honeycomb mesh, wherein the isolating explosion-proof honeycomb mesh is arranged on the outer wall of the rectangular shell.

[0014] Optionally, the micro storage device further includes: an automatic fire extinguishing sticker, which is arranged on the inner wall of the rectangular shell.

[0015] A second aspect of the present disclosure provides an energy storage system, comprising: a plurality of rectangular distributed micro storage devices as provided in the first aspect of the present disclosure, wherein the plurality of micro storage devices are arranged in a stacked manner.

[0016] The technical solution provided by the present disclosure may have the following beneficial effects:

[0017] It can be understood that since the cylindrical battery cells are clamped between the first frame and the second frame along the thickness direction of the rectangular shell, and the multiple cylindrical battery cells are distributed in a matrix shape along the plane direction of the rectangular shell, the battery module constitutes a relatively compact and regular structure. At the same time, since the control module and the battery module are arranged at intervals along the length direction in the plane direction of the rectangular shell, the control module and the battery module can be compactly arranged in the rectangular shell; thus, by utilizing the arrangement of the battery module and the control module in the rectangular shell, a smaller volume and a more regular rectangular structure of the micro storage device are achieved, which is conducive to the flexible adaptation of the micro storage device, thereby meeting different energy storage needs.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic structural diagram of a rectangular distributed micro storage device proposed in one embodiment of the present disclosure;

[0021] As shown in the figure: 1. Rectangular shell;

[0022] 2. Battery module, 21. First frame, 22. Second frame, 23. Cylindrical cell, 24. Threaded rod, 25. First notch, 26. First slot, 27. Second slot, 28. Positive busbar;

[0023] 3. Control module. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0025] like Figure 1As shown, the embodiment of the present disclosure proposes a rectangular distributed micro-storage device, including: a rectangular shell 1, a battery module 2 and a control module 3. The battery module 2 is arranged in the rectangular shell 1, and the battery module 2 includes: a first frame 21, a second frame 22 and a plurality of cylindrical battery cells 23. The first frame 21 and the second frame 22 are arranged at intervals along the thickness direction of the rectangular shell 1, and the cylindrical battery cells 23 are clamped between the first frame 21 and the second frame 22 along the thickness direction of the rectangular shell 1. The plurality of cylindrical battery cells 23 are distributed in a matrix shape along the plane direction of the rectangular shell 1. The control module 3 and the cylindrical battery cells 23 are electrically connected, and the control module 3 is arranged in the rectangular shell 1. The control module 3 and the battery module 2 are arranged at intervals along the length direction in the plane direction of the rectangular shell 1.

[0026] It can be understood that since the cylindrical battery cells 23 are clamped between the first frame 21 and the second frame 22 along the thickness direction of the rectangular shell 1, and multiple cylindrical battery cells 23 are distributed in a matrix shape along the plane direction of the rectangular shell 1, the battery module 2 constitutes a relatively compact and regular structure. At the same time, since the control module 3 and the battery module 2 are arranged at intervals along the length direction in the plane direction of the rectangular shell 1, the control module 3 and the battery module 2 can be compactly arranged in the rectangular shell 1.

[0027] Thus, by arranging the battery module 2 and the control module 3 in the rectangular housing 1, a smaller volume and a more regular rectangular structure of the micro storage device are achieved, which is conducive to flexible adaptation of the micro storage device and thus meets different energy storage needs.

[0028] It should be noted that the rectangular shell 1 is used to support and protect the battery module 2, control module 3, etc. The specific type of the rectangular shell 1 can be set according to actual needs and is not limited to this. For example, the rectangular shell 1 can be a hollow shell structure close to the shape of a cuboid. The plane directions of the rectangular shell 1 include: length direction and width direction, and the thickness direction of the rectangular shell 1 is perpendicular to the plane direction. The rectangular shell 1 can be made of a material with high thermal conductivity, such as aluminum alloy, to improve the heat dissipation efficiency of the micro storage device. Furthermore, the rectangular shell 1 can be made of aluminum plates by stir friction welding, which is a simple process and thus minimizes construction costs.

[0029] The first frame 21, the second frame 22 and the plurality of cylindrical battery cells 23 constitute a battery module 2 that is nearly rectangular in shape, and the control module 3 and the battery module 2 are arranged at intervals along the length direction of the rectangular shell 1, so that the micro storage device has a compact structure and a regular appearance.

[0030] The cylindrical battery cell 23 is a battery cell with a cylindrical structure, for example: a cylindrical battery cell, etc. The specific type of the cylindrical battery cell 23 can be set according to actual needs and is not limited to this. For example, the positive terminal, pressure relief valve, etc. of the cylindrical battery cell 23 are all located at one end of the cylindrical battery cell 23, and the negative terminal of the cylindrical battery cell 23 is located at the other end of the cylindrical battery cell 23. The model of the cylindrical battery cell 23 can be 46800.

[0031] The first frame 21 and the second frame 22 are used to integrate multiple cylindrical battery cells 23 into a regular overall structure. The specific types of the first frame 21 and the second frame 22 can be set according to actual needs and are not limited to this. For example, the first frame 21 and the second frame 22 can be rectangular plate structures respectively, and the first frame 21 and the second frame 22 can be made of lightweight materials such as plastic to reduce cost and weight.

[0032] The cylindrical battery cell 23 is clamped between the first frame 21 and the second frame 22 , which not only satisfies the stable charging and discharging function of the micro storage device, but also facilitates assembly and disassembly, making the micro storage device more flexible.

[0033] The control module 3 is used to control the charging and discharging of the cylindrical battery cells 23. The specific type of the control module 3 can be set according to actual needs and is not limited to this. For example, the control module 3 can be a module structure close to the shape of a rectangular parallelepiped. The control module 3 can integrate BMS (Battery Management System), BDU (Battery Disconnect Unit), etc., wherein the BMS is used for battery management, status monitoring, etc. The BMS usually controls the cylindrical battery cells 23 through the PCS (Power Conversion System), and the PCS can be independently arranged outside the rectangular shell 1; the BDU is used to execute the operating mode and perform switching operations on the battery circuit.

[0034] like Figure 1 As shown, in some embodiments, the battery module 2 further includes: a plurality of threaded rods 24, a plurality of first nuts (not shown in the figure) and a plurality of second nuts (not shown in the figure), the threaded rods 24 penetrate the first frame 21 and the second frame 22 along the thickness direction of the rectangular shell 1, and the plurality of threaded rods 24 are distributed at intervals along the circumference of the first frame 21 and the second frame 22, the first nut thread is set on the threaded rod 24, and the first nut and the side of the first frame 21 away from the second frame 22 are abutted, the second nut thread is set on the threaded rod 24, and the second nut and the side of the second frame 22 away from the first frame 21 are abutted.

[0035] It can be understood that since the threaded rod 24 passes through the first frame 21 and the second frame 22 along the thickness direction of the rectangular shell 1, and the first nut thread is set on the threaded rod 24 and abuts against the side of the first frame 21 away from the second frame 22, the second nut thread is set on the threaded rod 24 and abuts against the side of the second frame 22 away from the first frame 21, the first frame 21 and the second frame 22 can utilize the cooperation of multiple threaded rods 24, multiple first nuts and multiple second nuts to stably clamp and fix multiple cylindrical battery cells 23, thereby realizing the integrated and regular arrangement of the battery module 2, and at the same time facilitating the disassembly and assembly of the battery module 2, making the micro storage device more flexible.

[0036] It should be noted that the threaded rod 24 is used to cooperate with the first nut and the second nut to lock and fix the first frame 21 and the second frame 22. The specific type of the threaded rod 24 can be set according to actual needs and is not limited to this. For example, the threaded rod 24 is a rod structure with an external thread, and multiple threaded rods 24 are evenly distributed along the circumference of the first frame 21 and the second frame 22.

[0037] The first nut is used to lock and fix the first frame 21 and the second frame 22. Since the cylindrical battery cell 23 is located between the first frame 21 and the second frame 22, when the first nut and the first frame 21 are tightened, a firm connection between the first frame 21 and the cylindrical battery cell 23 can be achieved. The specific type of the first nut can be set according to actual needs and is not limited to this. For example, the first nut is a ring seat structure with an internal thread, and the internal thread of the first nut is adapted to the external thread of the threaded rod 24.

[0038] The second nut is used to lock and fix the first frame 21 and the second frame 22. Since the cylindrical battery cell 23 is located between the first frame 21 and the second frame 22, when the second nut and the second frame 22 are tightened, a firm connection between the second frame 22 and the cylindrical battery cell 23 can be achieved. The specific type of the second nut can be set according to actual needs and is not limited to this. For example, the second nut is a ring seat structure with an internal thread, and the internal thread of the second nut is adapted to the external thread of the threaded rod 24.

[0039] like Figure 1 As shown, in some embodiments, a plurality of first slots 25 circumferentially spaced apart between the first frame 21 and the second frame 22 are provided on a side of the first frame 21 away from the second frame 22, and the first nut is located in the first slot 25; a plurality of second slots (not shown in the figure) circumferentially spaced apart between the first frame 21 and the second frame 22 are provided on a side of the second frame 22 away from the first frame 21, and the second nut is located in the second slot.

[0040] It can be understood that since a plurality of first notches 25 are provided on the side of the first frame 21 away from the second frame 22 and are circumferentially spaced apart from each other, and the first nut is located in the first notch 25, the first nut can not only clamp and fix the plurality of cylindrical battery cells 23 by the first frame 21 and the second frame 22, but also avoid protruding from the first frame 21 by utilizing the first notch 25, thereby ensuring the regularity of the shape of the battery module 2, and further facilitating the compact integrated arrangement of the micro storage device.

[0041] Since a plurality of second notches spaced circumferentially along the first frame 21 and the second frame 22 are provided on a side of the second frame 22 away from the first frame 21, and the second nut is located in the second notch, the second nut can not only clamp and fix the plurality of cylindrical battery cells 23 between the first frame 21 and the second frame 22, but also avoid protruding from the second frame 22 by utilizing the second notch, thereby ensuring the regularity of the shape of the battery module 2 and further facilitating the compact integrated layout of the micro storage device.

[0042] It should be noted that the first notch 25 is used to accommodate the first nut. The specific type of the first notch 25 can be set according to actual needs and is not limited to this. For example, the first notch 25 can be a circular blind hole structure with a diameter larger than that of the first nut.

[0043] The second notch is used to accommodate the second nut. The specific type of the second notch can be set according to actual needs and is not limited to this. For example, the second notch can be a circular blind hole structure with a diameter larger than that of the second nut.

[0044] like Figure 1 As shown, in some embodiments, the first frame 21 is provided with a plurality of first slots 26 distributed in a matrix along the plane of the rectangular housing 1, and the second frame 22 is provided with a plurality of second slots 27 distributed in a matrix along the plane of the rectangular housing 1, with the first slots 26 and the second slots 27 being arranged opposite each other. One end of the cylindrical battery cell 23 is secured in the first slot 26, and the end of the cylindrical battery cell 23 away from the first slot 26 is secured in the second slot 27.

[0045] It can be understood that since one end of the cylindrical battery cell 23 is clamped in the first clamping slot 26, and the end of the cylindrical battery cell 23 away from the first clamping slot 26 is clamped in the second clamping slot 27, the cylindrical battery cell 23 can utilize the limiting position of the first clamping slot 26 and the limiting position of the second clamping slot 27 to be clamped between the first frame 21 and the second frame 22, thereby ensuring the stable integrated layout of the battery module 2.

[0046] It should be noted that the first card slot 26 is used to clamp one end of the cylindrical battery cell 23 away from the second card slot 27. The specific type of the first card slot 26 can be set according to actual needs and is not limited to this. For example, the shape of the first card slot 26 is adapted to the end of the cylindrical battery cell 23, and the size of the first card slot 26 is larger than the end size of the cylindrical battery cell 23.

[0047] The second slot 27 is used to hold one end of the cylindrical battery cell 23 away from the first slot 26. The specific type of the second slot 27 can be set according to actual needs and is not limited to this. For example, the shape of the second slot 27 is adapted to the end of the cylindrical battery cell 23, and the size of the second slot 27 is larger than the end size of the cylindrical battery cell 23.

[0048] like Figure 1 As shown, in some embodiments, the battery module 2 further includes: a plurality of positive bus plates 28 and a plurality of negative bus plates (not shown in the figure), the positive bus plate 28 is arranged on a side of the first frame 21 away from the second frame 22, and the positive bus plate 28 is electrically connected to the positive pole of at least one cylindrical battery cell 23, and the negative bus plate is arranged on a side of the second frame 22 away from the first frame 21, and the negative bus plate is electrically connected to the negative pole of at least one cylindrical battery cell 23.

[0049] It can be understood that since the positive busbar 28 is arranged on the side of the first frame 21 away from the second frame 22, and the positive busbar 28 is electrically connected to the positive pole of at least one cylindrical battery cell 23, the positive poles of multiple cylindrical battery cells 23 can be converged using multiple positive busbars 28, thereby facilitating stable charging and discharging operation of the battery module 2.

[0050] Since the negative busbar is arranged on the side of the second frame 22 away from the first frame 21, and the negative busbar is electrically connected to the negative pole of at least one cylindrical battery cell 23, the negative poles of multiple cylindrical battery cells 23 can be converged using multiple negative busbars, thereby facilitating stable charging and discharging operation of the battery module 2.

[0051] It should be noted that the positive busbar 28 is used for the busbar of the positive electrode of at least one cylindrical battery cell 23, and the negative busbar is used for the busbar of the negative electrode of at least one cylindrical battery cell 23. The positive busbar 28 corresponds to the negative busbar. The specific types of the positive busbar 28 and the negative busbar can be set according to actual needs and are not limited to this. For example, the positive busbar 28 can be an aluminum busbar, and the positive busbar 28 and the positive electrode of the cylindrical battery cell 23 can be electrically connected by ultrasonic welding. The negative busbar can be a nickel busbar, and the negative busbar and the negative electrode of the cylindrical battery cell 23 can be electrically connected by ultrasonic welding. The positive busbar 28 and the negative busbar are finally electrically connected to the PCS to realize charging and discharging operation using the PCS under the control of the control module 3.

[0052] Among them, multiple cylindrical battery cells 23 can be connected in parallel and / or in series to achieve centralized input or output of current. The corresponding numbers of positive busbars 28, negative busbars and cylindrical battery cells 23 can be set according to the specific series and parallel connection method, and there is no restriction on this.

[0053] The positive busbar 28 and the negative busbar may also be used to arrange a PFC (Power Factor Correction) sampling harness, etc., without limitation.

[0054] In some embodiments, the micro storage device further includes: a plurality of first thermally conductive colloids, which are arranged between a side of the first frame 21 away from the second frame 22 and an inner wall of the rectangular housing 1 .

[0055] It can be understood that since the first thermally conductive colloid is arranged between the side of the first frame 21 away from the second frame 22 and the inner wall of the rectangular shell 1, the first frame 21 can not only be stably set on the inner wall of the rectangular shell 1 by using the first thermally conductive colloid, but also can use the first thermally conductive colloid to achieve rapid heat dissipation, thereby ensuring the stable and safe operation of the cylindrical battery cell 23.

[0056] It should be noted that the first thermally conductive colloid is used for bonding and heat conduction. The specific type of the first thermally conductive colloid can be set according to actual needs and is not limited to this. For example, the first thermally conductive colloid can be a solidified body after the thermally conductive glue is filled between the first frame 21 and the inner wall of the rectangular shell 1.

[0057] In some embodiments, the micro storage device further includes: a plurality of second thermally conductive colloids, which are arranged between a side of the second frame 22 away from the first frame 21 and an inner wall of the rectangular housing 1 .

[0058] It can be understood that since the second thermally conductive colloid is arranged between the side of the second frame 22 away from the first frame 21 and the inner wall of the rectangular shell 1, the second frame 22 can not only be stably set on the inner wall of the rectangular shell 1 by using the second thermally conductive colloid, but also can use the second thermally conductive colloid to achieve rapid heat dissipation, thereby ensuring the stable and safe operation of the cylindrical battery cell 23.

[0059] It should be noted that the second thermally conductive colloid is used for bonding and heat conduction. The specific type of the second thermally conductive colloid can be set according to actual needs and is not limited to this. For example, the second thermally conductive colloid can be a solidified body after the thermally conductive glue is filled between the second frame 22 and the inner wall of the rectangular shell 1.

[0060] In some embodiments, the micro storage device further includes: a plurality of heat conducting fins, which are arranged on the outer wall of the rectangular housing 1 and are distributed at intervals.

[0061] It can be understood that since the thermal fins are arranged on the outer wall of the rectangular shell 1 and multiple thermal fins are distributed at intervals, the heat on the rectangular shell 1 can be quickly discharged by conduction of the thermal fins, thereby achieving a higher heat dissipation efficiency of the micro storage device, and thus ensuring the stable and safe operation of the micro storage device.

[0062] It should be noted that the thermal fins are used for heat conduction. The specific type of the thermal fins can be set according to actual needs and is not limited to this. For example, the thermal fins can be strip-shaped metal sheets.

[0063] In some embodiments, the micro storage device further includes: an isolation and explosion-proof honeycomb mesh, which is arranged on the outer wall of the rectangular shell 1.

[0064] It can be understood that since the barrier explosion-proof honeycomb mesh is arranged on the outer wall of the rectangular shell 1, the rectangular shell 1 can utilize the fire isolation and explosion suppression function of the barrier explosion-proof honeycomb mesh to reduce the risk of thermal runaway, thereby ensuring the stable and safe operation of the micro storage device.

[0065] It should be noted that the barrier explosion-proof honeycomb mesh is used to reduce the risk of explosion and fire. The specific type of the barrier explosion-proof honeycomb mesh can be set according to actual needs and is not limited to this. For example, the barrier explosion-proof honeycomb mesh can be a honeycomb mesh made of aluminum alloy material. The interior of the honeycomb aluminum mesh is designed with a laminated structure to form a honeycomb grid. This unique structure divides the interior of the container into many tiny "small compartments", which can effectively curb the spread of flames and prevent the spread of fire. At the same time, the honeycomb structure of the aluminum alloy has extremely high thermal conductivity and can quickly absorb the heat generated by combustion, thereby reducing the temperature after combustion and reducing the expansion of the reaction gas, thereby suppressing the sharp rise in pressure inside the container.

[0066] In some embodiments, the micro storage device further includes: an automatic fire extinguishing sticker, which is arranged on the inner wall of the rectangular shell 1.

[0067] It can be understood that since the automatic fire extinguishing sticker is set on the inner wall of the rectangular shell 1, the rectangular shell 1 can use the automatic fire extinguishing function of the automatic fire extinguishing sticker to reduce the risk of thermal runaway, thereby ensuring the stable and safe operation of the micro storage device.

[0068] It should be noted that the automatic fire extinguishing sticker is used to reduce the risk of explosion and fire. The specific type of the automatic fire extinguishing sticker can be set according to actual needs and is not limited to this. Among them, the automatic fire extinguishing sticker is a type of automatic fire extinguishing device, which is attached to the rectangular shell 1 and contains chemicals for extinguishing fires.

[0069] The embodiment of the present disclosure further proposes an energy storage system, comprising: a plurality of rectangular distributed micro storage devices as in the embodiment of the present disclosure, wherein the plurality of micro storage devices are stacked.

[0070] It can be understood that since the cylindrical battery cells 23 are clamped between the first frame 21 and the second frame 22 along the thickness direction of the rectangular shell 1, and multiple cylindrical battery cells 23 are distributed in a matrix shape along the plane direction of the rectangular shell 1, the battery module 2 constitutes a relatively compact and regular structure. At the same time, since the control module 3 and the battery module 2 are arranged at intervals along the length direction in the plane direction of the rectangular shell 1, the control module 3 and the battery module 2 can be compactly arranged in the rectangular shell 1.

[0071] Thus, by arranging the battery module 2 and the control module 3 in the rectangular housing 1, a smaller volume and a more regular rectangular structure of the micro storage device are achieved, which is conducive to flexible adaptation of the micro storage device and thus meets different energy storage needs.

[0072] It should be noted that the integrated regular structure of the micro storage device is realized by stacking arrangement, thereby utilizing modular design, which is simpler and more convenient to use.

[0073] In the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0074] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0075] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0076] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A rectangular distributed micro storage device, characterized in that: include: rectangular shell; A battery module, the battery module being disposed within the rectangular housing and comprising: a first frame, a second frame, and a plurality of cylindrical battery cells, the first frame and the second frame being spaced apart along a thickness direction of the rectangular housing, the cylindrical battery cells being clamped between the first frame and the second frame along the thickness direction of the rectangular housing, and the plurality of cylindrical battery cells being distributed in a matrix along a plane direction of the rectangular housing; A control module is electrically connected to the cylindrical battery core, and the control module is disposed in the rectangular shell. The control module and the battery module are spaced apart along a length direction in a plane direction of the rectangular shell.

2. The rectangular distributed micro storage device according to claim 1, characterized in that: The battery module further includes: a plurality of threaded rods, wherein the threaded rods penetrate the first frame and the second frame along the thickness direction of the rectangular shell, and the plurality of threaded rods are distributed at intervals along the circumference of the first frame and the second frame; a plurality of first nuts, wherein the first nuts are threadedly disposed on the threaded rod, and the first nuts abut against a side of the first frame away from the second frame; A plurality of second nuts are threadedly disposed on the threaded rod, and the second nuts abut against a side of the second frame away from the first frame.

3. The rectangular distributed micro storage device according to claim 2, characterized in that: A plurality of first notches spaced apart along the circumference of the first frame and the second frame are provided on a side of the first frame away from the second frame, and the first nut is located in the first notch; A side of the second frame away from the first frame is provided with a plurality of second notches spaced apart along the circumference of the first frame and the second frame, and the second nuts are located in the second notches.

4. The rectangular distributed micro storage device according to claim 1, characterized in that: The first frame is provided with a plurality of first card slots distributed in a matrix along the plane direction of the rectangular shell, and the second frame is provided with a plurality of second card slots distributed in a matrix along the plane direction of the rectangular shell, and the first card slots and the second card slots are arranged opposite to each other; One end of the cylindrical battery core is clamped in the first clamping slot, and the end of the cylindrical battery core away from the first clamping slot is clamped in the second clamping slot.

5. The rectangular distributed micro storage device according to claim 1, characterized in that: The battery module further includes: a plurality of positive busbars, each of which is disposed on a side of the first frame away from the second frame and electrically connected to a positive electrode of at least one of the cylindrical cells; A plurality of negative busbars are provided on a side of the second frame away from the first frame, and the negative busbars are electrically connected to the negative electrode of at least one of the cylindrical battery cells.

6. The rectangular distributed micro storage device according to claim 1, characterized in that: The micro storage device also includes: a plurality of first heat-conducting colloids, wherein the first heat-conducting colloids are arranged between a side of the first frame away from the second frame and an inner wall of the rectangular shell; and / or A plurality of second thermally conductive adhesives are provided between a side of the second frame away from the first frame and an inner wall of the rectangular housing.

7. The rectangular distributed micro storage device according to claim 1, characterized in that: The micro storage device further comprises: A plurality of heat-conducting fins are provided on the outer wall of the rectangular shell, and the plurality of heat-conducting fins are distributed at intervals.

8. The rectangular distributed micro storage device according to claim 1, characterized in that: The micro storage device further comprises: The barrier explosion-proof honeycomb mesh is arranged on the outer wall of the rectangular shell.

9. The rectangular distributed micro storage device according to claim 1, characterized in that: The micro storage device further comprises: An automatic fire extinguishing sticker is arranged on the inner wall of the rectangular shell.

10. An energy storage system, characterized in that: include: A plurality of rectangular distributed micro storage devices according to any one of claims 1 to 9, wherein the plurality of said micro storage devices are arranged in a stacked manner.

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