An energy storage cabinet

Abstract

The utility model relates to battery energy storage system technical field, especially a kind of energy storage cabinet, including battery cluster frame and the electrical cabinet of being located in the one side of battery cluster frame, at least two layers of containing space for placing battery pack are arranged in battery cluster frame, connecting assembly is equipped between battery pack and electrical cabinet, battery pack is electrically connected with electrical cabinet by connecting assembly;Power distribution module and battery management module for controlling the charging or discharging operation of battery pack are provided in electrical cabinet.The energy storage cabinet of the utility model is integrated into electrical cabinet by setting electrical cabinet, and power distribution module and battery management module are installed, battery pack is electrically connected with electrical cabinet by connecting assembly, it is convenient to install and maintain, and, improve energy density.

Description

Technical Field

[0001] This utility model relates to the field of battery energy storage system technology, and in particular to an energy storage cabinet. Background Technology

[0002] In order to increase the energy density of the energy storage cabinet within its original dimensions, the space inside the cabinet used for installing power distribution modules and other components has been compressed, making installation and maintenance inconvenient and reducing work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an energy storage cabinet that is easy to install and maintain, and to improve the energy density of the energy storage cabinet.

[0004] To achieve the above objectives, this utility model proposes an energy storage cabinet, including a battery cluster rack and an electrical cabinet located on one side of the battery cluster rack. The battery cluster rack has at least two layers of storage space arranged in an array for placing battery packs. A connecting component is provided between the battery packs and the electrical cabinet, and the battery packs are electrically connected to the electrical cabinet through the connecting component. The electrical cabinet is equipped with a power distribution module and a battery management module for controlling the charging or discharging operation of the battery packs.

[0005] Optionally, the battery pack rack includes a frame and a support assembly, with each accommodating space having a corresponding support assembly, which is fixedly connected to the frame to support the battery pack.

[0006] Optionally, the support assembly includes at least two parallel guide rails extending along the length of the battery cluster frame, on which the battery pack is placed. Each guide rail includes a support plate and a positioning plate perpendicular to each other. The support plate supports the battery pack, and the positioning plate defines the relative position of the battery pack and the battery cluster frame along the width of the battery cluster frame.

[0007] Optionally, the battery pack is provided with a mounting plate corresponding to the support plate, the mounting plate abutting against the support plate and being able to slide relative to the support plate.

[0008] The energy storage cabinet of this utility model also includes fasteners. The mounting plate and the support plate are respectively provided with a first connecting hole and a second connecting hole. The fasteners are inserted into the first connecting hole and the second connecting hole and are fixedly connected to the support plate to limit the relative position of the battery pack and the battery cluster frame.

[0009] Optionally, the connection component includes a first connector and a second connector that plugs into and mates with the first connector. Each battery pack in each layer of the accommodating space has a first connector on the side closest to the electrical cabinet, and the electrical cabinet has a second connector corresponding to each first connector.

[0010] Optionally, the connection component also includes a series bar for connecting every two adjacent second connectors in series.

[0011] Optionally, the power distribution module includes a cabinet power distribution unit and a high-voltage power distribution unit. The cabinet power distribution unit is used to supply power and coordinate the power and control signals between the battery pack and the battery management module, while the high-voltage power distribution unit is used to distribute and transmit the power of the battery pack in a high-voltage environment.

[0012] Optionally, the electrical cabinet is also equipped with output connectors for electrical connection to external devices or the power grid interface.

[0013] Compared with the prior art, the technical solution of this utility model has the following advantages: The energy storage cabinet of this utility model integrates the power distribution module and the battery management module into the electrical cabinet by setting up an electrical cabinet. The battery pack is electrically connected to the electrical cabinet through the connecting components, which facilitates installation and maintenance, and improves energy density. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the energy storage cabinet of this utility model.

[0016] Figure 2 This is an exploded view of the energy storage cabinet of this utility model.

[0017] Figure 3 This is an exploded view of the energy storage cabinet of this utility model from another perspective.

[0018] Figure 4 This is a partially enlarged schematic diagram of the battery cluster frame of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the energy storage cabinet of this utility model from another perspective.

[0020] Figure 6 This is a schematic cross-sectional view of the energy storage cabinet of this utility model along the AA direction.

[0021] In the picture:

[0022] 1-Battery cluster rack; 11-Frame; 12-Guide rail; 121-Support plate; 122-Limiting plate;

[0023] 2-Electrical cabinet; 21-Power distribution module; 211-Complete cabinet power distribution unit; 212-High voltage power distribution unit; 22-Battery management module; 23-Output connector;

[0024] 3-Battery pack; 31-Mounting plate; 311-First connection hole;

[0025] 4-Connecting component; 41-First connector; 42-Second connector; 43-Serial busbar. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can mean that two components are internally connected. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The terms “first”, “second”, etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0030] The terms “including,” “comprising,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0031] The terms "an embodiment," "as an example," or "in an example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which may be included in at least one embodiment or example of this application. These illustrative expressions do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Where there is no conflict, the embodiments and features described in these embodiments can be combined in a suitable manner.

[0032] Please see Figure 1 This utility model provides an energy storage cabinet, including a battery cluster rack 1 and an electrical cabinet 2 disposed on one side of the battery cluster rack 1. Specifically, the battery cluster rack 1 has at least two layers of accommodating spaces arranged in an array for placing battery packs 3. A connecting component 4 is provided between the battery packs 3 and the electrical cabinet 2, and the battery packs 3 are electrically connected to the electrical cabinet 2 through the connecting component 4. Further, the electrical cabinet 2 is provided with a power distribution module 21 and a battery management module 22 for controlling the charging or discharging operation of the battery packs 3.

[0033] Please see Figure 2 In some embodiments, the battery management module 22 includes at least one of a battery control unit and a battery management unit. The battery management unit is used to monitor the state parameters of the battery pack 3, such as voltage and temperature, and to perform overvoltage protection or undervoltage protection measures, thereby monitoring the health status of the battery pack 3 in real time. The battery control unit is used to aggregate data from multiple battery management units and to estimate the state of charge, health status, and make decisions on thermal management strategies.

[0034] Please continue reading. Figure 2 In one embodiment, the power distribution module 21 includes a cabinet power distribution unit 211 and a high-voltage power distribution unit 212. The cabinet power distribution unit 211 is used to supply power and coordinate the power and control signals between the battery pack 3 and the battery management module 22. The high-voltage power distribution unit 212 is used to distribute and transmit the power of the battery pack 3 in a high-voltage environment.

[0035] By integrating the power distribution module 21 and the battery management module 22 into the electrical cabinet 2, the energy storage cabinet has a compact structure, which can improve the energy density of the energy storage cabinet and facilitate installation and maintenance. In addition, the fact that the power distribution module 21 and the battery management module 22 are located inside the electrical cabinet 2 simplifies the structure of the battery pack 3. Compared with the traditional method of building the battery management module 22 into the battery pack 3, it can reduce the number of components inside the battery pack 3, thereby reducing the number of mounting holes or wiring harness through holes on the battery pack 3, improving the sealing performance of the battery pack 3, and helping to ensure the normal operation of the energy storage cabinet.

[0036] Please see Figure 3In some embodiments, the battery cluster rack 1 includes a frame 11 and a support assembly, the support assembly being fixedly connected to the frame 11 for supporting the battery pack 3. Optionally, the support assembly is fixedly connected to the frame 11 by welding, fastener connection, or snap-fit, and each accommodating space is provided with a corresponding support assembly.

[0037] Please see Figure 3 and Figure 4 Specifically, in this embodiment, the support assembly includes at least two parallel guide rails 12 extending along the length of the battery cluster frame 1, with the battery pack 3 placed on the at least two guide rails 12. Specifically, each guide rail 12 includes a support plate 121 and a limiting plate 122 perpendicular to each other. The support plate 121 supports the battery pack 3, and the limiting plate 122 defines the relative position of the battery pack 3 and the battery cluster frame 1 along the width direction of the battery cluster frame 1. In other embodiments, the support assembly includes a support plate connected to the inner wall of the cluster frame, or other structures capable of supporting the battery pack; this is not limited here.

[0038] The energy storage cabinet of this utility model also includes fasteners (not shown in the figure). The outer shell of the battery pack 3 is provided with a mounting plate 31 corresponding to the support plate 121. The mounting plate 31 abuts against the support plate 121 and can slide relative to the support plate 121. Optionally, the mounting plate 31 and the support plate 121 are respectively provided with a first connecting hole 311 and a second connecting hole. The fastener passes through the first connecting hole 311 and the second connecting hole and is fixedly connected to the support plate 121 to limit the relative position of the battery pack 3 and the battery cluster frame 1. Through the cooperation between the mounting plate 31 and the cluster frame, a gap is made between the outer shell of the battery pack 3 and the frame 11, which facilitates the battery pack 3 to slide into or out of the accommodating space along the length direction of the guide rail 12 during installation or disassembly.

[0039] In one embodiment, the fastener is a bolt. When the battery pack 3 is placed in the accommodating space of the battery cluster frame 1, the bolt is passed sequentially through the first connecting hole 311 of the mounting plate 31 and the second connecting hole of the guide rail 12, and a nut is screwed into the bottom of the bolt, so that the mounting plate 31 and the support plate 121 are clamped between the bolt and the nut, thereby fixing the battery pack 3 to the battery cluster frame 1. Optionally, the nut is fixed to the area corresponding to the second connecting hole at the bottom of the support plate 121 of the guide rail 12, so that the installation or removal of the battery pack 3 and the support plate 121 can be completed simply by turning the bolt, which facilitates the installation or removal of the battery pack 3 and the support plate 121.

[0040] Please combine Figures 3 to 6The connecting component 4 includes a first connector 41 and a second connector 42 that plugs into and engages with the first connector 41. Each battery pack 3 in each layer of the accommodating space has a first connector 41 on the side closest to the electrical cabinet 2, and the electrical cabinet 2 has a second connector 42 corresponding to each first connector 41. During installation, the battery pack 3 slides into the accommodating space of the battery cluster rack 1 along the length direction of the guide rail 12. When it slides to a preset position, the first connector 41 can be plugged into the second connector 42. During disassembly, after removing the bolts, the battery pack 3 is pulled out along the length direction of the guide rail 12, so that the first connector 41 and the second connector 42 are separated. Separation can be completed without manually plugging or unplugging the connectors, thus facilitating disassembly.

[0041] Please see Figure 2 The connecting component 4 also includes a series busbar 43, which is used to connect two adjacent second connectors 42 in series, thereby connecting the battery packs 3 of each two adjacent layers in the battery cluster rack 1, and thus increasing the voltage of the energy storage cabinet. The series busbar 43 can be made of copper, which helps to reduce resistance, reduce energy loss during battery transmission, and facilitates installation and disassembly.

[0042] In one embodiment, the electrical cabinet 2 is also provided with an output connector 23, which is used to electrically connect to external equipment or the power grid interface. The energy storage cabinet can be quickly connected to external equipment or the power grid through the output connector 23.

[0043] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An energy storage cabinet, characterized by: The device includes a battery rack (1) and an electrical cabinet (2) located on one side of the battery rack (1). The battery rack (1) has at least two layers of storage space for placing battery packs (3). A connecting component (4) is provided between the battery packs (3) and the electrical cabinet (2). The battery packs (3) are electrically connected to the electrical cabinet (2) through the connecting component (4). The electrical cabinet (2) is provided with a power distribution module (21) and a battery management module (22) for controlling the charging or discharging operation of the battery packs (3).

2. The energy storage cabinet of claim 1, wherein: The battery pack rack (1) includes a frame (11) and a support component. Each of the accommodating spaces is provided with a corresponding support component. The support component is fixedly connected to the frame (11) and is used to support the battery pack (3).

3. The energy storage cabinet of claim 2, wherein: The support assembly includes at least two guide rails (12) arranged parallel to each other, the at least two guide rails (12) extending along the length direction of the battery cluster frame (1), and the battery pack (3) is placed on the at least two guide rails (12).

4. The energy storage cabinet of claim 3, wherein: The guide rail (12) includes a support plate (121) and a limiting plate (122) that are perpendicular to each other. The support plate (121) carries the battery pack (3), and the limiting plate (122) is used to limit the relative position of the battery pack (3) and the battery cluster frame (1) along the width direction of the battery cluster frame (1).

5. The energy storage cabinet of claim 4, wherein: The battery pack (3) is provided with a mounting plate (31) corresponding to the support plate (121). The mounting plate (31) abuts against the support plate (121) and can slide relative to the support plate (121).

6. The energy storage cabinet of claim 5, wherein: It also includes fasteners. The mounting plate (31) and the support plate (121) are respectively provided with a first connection hole (311) and a second connection hole. The fasteners are inserted into the first connection hole (311) and the second connection hole and are fixedly connected to the support plate (121) to limit the relative position of the battery pack (3) and the battery cluster frame (1).

7. The energy storage cabinet of claim 1, wherein: The connection component (4) includes a first connector (41) and a second connector (42) that is plugged into the first connector (41). Each battery pack (3) in each layer of the accommodating space is provided with a first connector (41) on the side near the electrical cabinet (2). The electrical cabinet (2) is provided with a second connector (42) corresponding to each first connector (41).

8. The energy storage cabinet of claim 7, wherein: The connection component (4) further includes a series bar (43) for connecting each two adjacent second connectors (42) in series.

9. The energy storage cabinet according to claim 1, characterized in that: The power distribution module (21) includes a cabinet power distribution unit (211) and a high-voltage power distribution unit (212). The cabinet power distribution unit (211) is used to supply power and coordinate the power and control signals between the battery pack (3) and the battery management module (22). The high-voltage power distribution unit (212) is used to distribute and transmit the power of the battery pack (3) in a high-voltage environment.

10. The energy storage cabinet according to claim 1, characterized in that: The electrical cabinet (2) is also provided with an output connector (23), which is used to electrically connect to external equipment or power grid interface.

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