Battery energy storage device

Abstract

The utility model relates to the technical field of energy storage battery, and solves the problem that the installation of the battery energy storage device is limited by the height of the installation scene. The utility model provides a kind of battery energy storage device, it includes: multiple energy storage mechanisms, energy storage mechanism includes base and one or more stacked connection battery module being arranged on base, and energy storage quick connection structure is provided on base, and energy storage quick connection structure is connected in the battery module adjacent to base: connecting wire harness, its both ends are respectively provided with the wire harness quick connection structure matched with energy storage quick connection structure, and the wire harness quick connection structure of its both ends is respectively detachably connected to the energy storage quick connection structure of any two energy storage mechanisms, for transmitting the communication signal and electric energy between the two energy storage mechanisms connected by it. The utility model overcomes the above technical problems.

Description

Technical Field

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

[0002] With the development of science and technology, battery energy storage devices are playing an increasingly important role in renewable energy integration, grid stability, and distributed energy systems. Especially in photovoltaic energy storage power stations, high-efficiency battery energy storage devices can not only store excess electricity for use during peak periods, but also optimize energy distribution through intelligent management systems, thereby improving the overall system reliability and efficiency.

[0003] Currently, in existing technologies, battery energy storage devices are constructed by stacking modular energy storage batteries, and the number of batteries can be increased or decreased as needed. However, in some application scenarios, customers require larger capacity energy storage devices, meaning a greater number of batteries need to be stacked, resulting in a taller device (typically, a typical battery energy storage device with six battery packs and an inverter module can reach a height of over 2 meters). Customers may not be able to provide sufficient space to accommodate this installation height. Consequently, the installation of battery energy storage devices is not flexible enough, limiting their application scenarios and failing to meet user installation needs, thus further restricting the promotion and utilization of battery energy storage devices. Utility Model Content

[0004] One objective of this invention is to provide a battery energy storage device that can overcome at least one technical defect in the prior art.

[0005] Another further objective of this invention is to improve the installation flexibility of battery energy storage devices, making them compatible with more usage scenarios to meet users' installation and usage needs, thus overcoming the limitations imposed on the promotion and utilization of battery energy storage devices.

[0006] Specifically, this utility model provides a battery energy storage device, which includes:

[0007] Multiple energy storage mechanisms, each including a base and one or more stacked battery modules mounted on the base, with a quick-connect structure for energy storage connected to the battery modules adjacent to the base:

[0008] The connecting harness has a quick-connect structure at each end that matches the quick-connect structure of the energy storage device. The quick-connect structures at both ends can be detachably connected to the quick-connect structures of any two energy storage devices to transmit communication signals and electrical energy between the two connected energy storage devices.

[0009] Furthermore, the energy storage quick-connect structure is located on the outer side of the base to facilitate the connection between the energy storage quick-connect structure and the wire harness quick-connect structure.

[0010] Furthermore, the energy storage quick-connect structure is located on the rear side of the base.

[0011] Furthermore, the base is equipped with a battery stacking terminal connector for connection to the energy storage quick-connect structure, and the battery modules located adjacent to the base are connected to the battery stacking terminal connector; and,

[0012] The top of the base is provided with a connector clearance slot, within which the battery stacking terminal connector is located. The connector clearance slot allows the battery module to connect to the battery stacking terminal connector; and...

[0013] The energy storage quick-connect structure is located behind the connector clearance slot.

[0014] Furthermore, the energy storage quick-connect structure and the wire harness quick-connect structure are respectively configured with matching energy storage quick-connect terminals and wire harness quick-connect terminals.

[0015] Furthermore, the energy storage quick-connect terminal is a quick-connect female terminal, and the wire harness quick-connect terminal is a quick-connect male terminal.

[0016] Furthermore, the connecting harness includes communication lines and power lines arranged side by side; and,

[0017] Both the energy storage quick-connect terminal and the wire harness quick-connect terminal include a communication connection terminal and a power connection terminal that are respectively connected to the communication line and the power line.

[0018] Furthermore, the two energy storage units connected by the connecting harness are arranged adjacent to each other and side by side.

[0019] Furthermore, one of the multiple energy storage mechanisms connected by a connecting harness also includes an energy storage converter module located on top of it, the energy storage converter module being positioned above the battery module; and,

[0020] The energy storage system also includes a power distribution box module and / or a charging pile module stacked with the battery modules; and,

[0021] The charging pile module or distribution box module is located between the energy storage converter module and the battery module; or...

[0022] The charging pile module and the power distribution box module are located between the energy storage converter module and the battery module, with the power distribution box module positioned above the charging pile module.

[0023] Furthermore, energy storage institutions also include:

[0024] The energy storage top cover is designed to match the top of the battery module, charging pile module, power distribution box module, and energy storage converter module.

[0025] The energy storage top cover is installed on the battery module, charging pile module, power distribution box module, or energy storage converter module located on top of the energy storage mechanism.

[0026] Furthermore, the energy storage top cover includes a front cover plate, a rear cover plate, a top cover plate, a left cover plate, and a right cover plate. The front cover plate and the rear cover plate are respectively connected to the front end and the rear end of the top cover plate. The left cover plate is detachably disposed at the left end of the front cover plate, the rear cover plate, and the top cover plate, and is located below the top cover plate and between the front cover plate and the rear cover plate. The right cover plate is detachably disposed at the right end of the front cover plate, the rear cover plate, and the top cover plate, and is located below the top cover plate and between the front cover plate and the rear cover plate.

[0027] The bottom ends of the front cover, rear cover, top cover, left cover, and right cover are set as flat surfaces. The top parts of the battery module, charging pile module, power distribution box module, and energy storage converter module that contact the front cover, rear cover, top cover, left cover, and right cover are set as flat surfaces, respectively.

[0028] This utility model discloses a battery energy storage device that comprises multiple energy storage mechanisms connected by connecting harnesses. The connecting harnesses and energy storage mechanisms are quickly connected via quick-connect structures, allowing the battery modules to be distributed and quickly installed on multiple energy storage mechanisms (or bases) according to the installation site. This overcomes the height limitations of the installation environment. Therefore, this utility model enhances the installation flexibility of the battery energy storage device, making it compatible with more application scenarios to meet user installation and usage needs, and overcoming the limitations imposed on the promotion and utilization of battery energy storage devices.

[0029] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0030] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a battery energy storage device according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the energy storage mechanism in a battery energy storage device according to an embodiment of the present invention;

[0033] Figure 3 yes Figure 2 An enlarged view of point "A" in the diagram;

[0034] Figure 4 This is a schematic diagram of the base and connecting wire harness in a battery energy storage device according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the base in a battery energy storage device according to an embodiment of the present invention;

[0036] Figure 6 This is a front view schematic diagram of a battery energy storage device according to an embodiment of the present invention;

[0037] Figure 7 This is one of the partial exploded schematic diagrams of the energy storage mechanism in a battery energy storage device according to an embodiment of the present invention;

[0038] Figure 8 This is a second partially exploded schematic diagram of the energy storage mechanism in a battery energy storage device according to an embodiment of the present invention;

[0039] Figure 9 yes Figure 2 An enlarged view of section "B" in the middle. Detailed Implementation

[0040] In the description of this embodiment, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, 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 the present invention.

[0041] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0042] Unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] Unless otherwise specified, all terms (including technical and scientific terms) used in the description of these embodiments have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0045] In the description of this embodiment, the terms "this embodiment," "other embodiments," "implementation methods," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0046] The following is combined Figures 1 to 9 The battery energy storage device of this embodiment will be described in detail below.

[0047] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the battery energy storage device may include a connecting harness 200 and a plurality of energy storage mechanisms 100.

[0048] The energy storage mechanism 100 includes a base 110 and one or more stacked battery modules 120 disposed on the base 110. The base 110 is provided with an energy storage quick-connect structure 111, which is connected to the battery modules 120 adjacent to the base 110.

[0049] The two ends of the connecting harness 200 are respectively provided with a quick-connect structure 210 that matches the quick-connect structure 111 of the energy storage. The quick-connect structures 210 at both ends of the connecting harness 200 are detachably connected to the quick-connect structures 111 of any two energy storage mechanisms 100. The connecting harness 200 is used to transmit communication signals and electrical energy between the two energy storage mechanisms 100 connected to it.

[0050] Because the battery energy storage device in this embodiment includes multiple energy storage units 100 connected by connecting harnesses 200, and the connecting harnesses 200 and the energy storage units 100 are quickly connected through energy storage quick-connect structures 111 and 210, the battery energy storage device can quickly and distributedly install battery modules 120 on multiple energy storage units 100 (or bases 110) according to the installation site, thus enabling the installation of the battery energy storage device to overcome the height limitations of the installation scenario. Therefore, this embodiment improves the installation flexibility of the battery energy storage device, making it compatible with more usage scenarios to meet the installation and usage needs of users, and overcoming the limitations imposed on the promotion and utilization of battery energy storage devices.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of the base 110 of this embodiment, each base 110 may be provided with an energy storage quick-connect structure 111, thereby the battery energy storage device of this embodiment may be configured with two energy storage mechanisms 100, and the two energy storage mechanisms 100 may be connected by a connecting wire harness 200.

[0052] In another embodiment of the base 110 of this embodiment, two energy storage quick-connect structures 111 can be provided on each base 110, so that the battery energy storage device of this embodiment can set two or more energy storage mechanisms 100 and connect the two or more energy storage mechanisms 100 through multiple connecting wire harnesses 200.

[0053] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the energy storage quick-connect structure 111 is disposed on the outer side of the base 110 to facilitate the connection between the energy storage quick-connect structure 111 and the wire harness quick-connect structure 210, thereby further improving the installation speed of the battery energy storage device.

[0054] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the energy storage quick-connect structure 111 is disposed on the rear side of the base 110.

[0055] It is understandable that by placing the energy storage quick-connect structure 111 on the rear side of the base 110, the connecting harness 200 and the quick-connect structure 210 can be configured on the rear side of multiple energy storage mechanisms 100, so as to avoid the connecting harness 200 being arranged in front of the battery energy storage device, which would cause clutter in the front space of the battery energy storage device and ensure the normal use of the battery energy storage device.

[0056] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, a battery stacking terminal connector 112 connected to the energy storage quick-connect structure 111 is provided on the base 110, and the battery module 120 provided on the adjacent base 110 is connected to the battery stacking terminal connector 112, thereby realizing the connection between the battery module 120 and the energy storage quick-connect structure 111.

[0057] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, a connector clearance groove 113 is provided on the top of the base 110, and the battery stack terminal connector 112 is disposed in the connector clearance groove 113. The connector clearance groove 113 is used to allow the battery module 120 to be connected to the battery stack terminal connector 112; and the energy storage quick-connect structure 111 is disposed behind the connector clearance groove 113.

[0058] It is understandable that, since the lower side of the battery module 120 is provided with a mounting structure that matches the battery stack terminal connector 112 and protrudes from the lower side of the battery module 120, the setting of the connector clearance groove 113 allows the battery module 120 to be placed on the base 110 and the connection between the mounting structure and the battery stack terminal.

[0059] It is also important to understand that the quick-connect structure 111 is positioned behind the connector clearance groove 113 so that the quick-connect structure 111 is positioned behind the base 110, ensuring the normal operation of the battery energy storage device.

[0060] Reference Figure 4 In this embodiment, the energy storage quick-connect structure 111 and the wire harness quick-connect structure 210 are respectively configured as matching energy storage quick-connect terminals 1111 and wire harness quick-connect terminals 211 to achieve a detachable connection between the energy storage quick-connect structure 111 and the wire harness quick-connect structure 210.

[0061] In some other embodiments, the energy storage quick-connect structure 111 can be configured as a terminal block, and the wire harness quick-connect structure 210 can be the exposed metal part connecting the two ends of the wire harness 200 (or the exposed metal part is wrapped with a metal layer to ensure its electrical connectivity).

[0062] In this embodiment, the energy storage quick-connect terminal 1111 is a quick-connect female terminal, and the wire harness quick-connect terminal 211 is a quick-connect male terminal.

[0063] It is understandable that quick-connect male terminals have pins, and these pins are easily bent, broken, or even damaged during the transportation and assembly of the battery energy storage device, rendering the quick-connect male terminal unusable. If the energy storage quick-connect terminal 1111 is set as a quick-connect male terminal, the base 110 needs to be replaced or the energy storage quick-connect terminal 1111 needs to be repaired, which would increase the operating cost of the battery energy storage device. Therefore, in this embodiment, the wire harness quick-connect terminal 211 can be a quick-connect male terminal. When the pins on the wire harness quick-connect terminal 211 are damaged, the connecting wire harness 200 can be directly replaced, allowing the battery energy storage device to continue to function normally and reducing the operating cost of the battery energy storage device.

[0064] In this embodiment, the connecting harness 200 may include communication lines and power lines arranged side by side.

[0065] It is understood that by setting the connecting harness 200 as a communication line and a power line arranged side by side, the connecting harness 200 can be enabled to transmit communication signals and electrical energy between the two energy storage units 100 connected to it.

[0066] In this embodiment, both the energy storage quick-connect terminal 1111 and the wire harness quick-connect terminal 211 include a communication connection terminal and a power connection terminal that are respectively connected to the communication line and the power line.

[0067] It is understood that both the energy storage quick-connect terminal 1111 and the wire harness quick-connect terminal 211 include communication connection terminals and power connection terminals corresponding to the communication line and power line, thereby enabling the connection of the communication line and power line between the two energy storage mechanisms 100. Specifically, the communication connection terminal and power connection terminal on the energy storage quick-connect terminal 1111 can be a communication jack and a power jack, and the communication connection terminal and power connection terminal on the wire harness quick-connect terminal 211 can be a communication pin and a power pin.

[0068] Reference Figure 1 and Figure 6 In this embodiment, the two energy storage mechanisms 100 connected by the connecting harness 200 are arranged adjacently and side by side. That is, the two energy storage mechanisms 100 connected by the connecting harness 200 and the connecting harness 200 form a U-shaped (dual energy storage mechanism 100) structure, so that the connecting harness 200 can have a shorter size, reduce the production cost of the battery energy storage device, and facilitate the use of the battery energy storage device and the later maintenance of the battery energy storage device (for example, the connecting harness 200 may become messy after the battery energy storage device is installed, or the two energy storage mechanisms 100 connected by the connecting harness 200 may be installed far apart, making the maintenance of the battery energy storage device difficult).

[0069] Reference Figure 1 and Figure 6In this embodiment, one of the multiple energy storage mechanisms 100 connected by the connecting harness 200 also includes an energy storage converter module 130 located on top of the energy storage mechanism 100, and the energy storage converter module 130 is disposed above the battery module 120.

[0070] Understandably, the Power Conversion System (PCS) module can convert the alternating current (AC) from the power grid into direct current (DC) to charge the battery module 120, and can also invert the DC from the battery module 120 back into alternating current (AC) to supply the power grid or load.

[0071] On the one hand, as a high-power device, the energy storage converter module 130 generates a large amount of heat during operation. Therefore, placing the energy storage converter module 130 at the top of the energy storage mechanism 100 utilizes the natural upward movement of hot air, combined with the heat dissipation vents at the top of the cabinet, to accelerate the expulsion of hot air from the energy storage converter module 130 and reduce its internal temperature. On the other hand, top mounting of the energy storage converter module 130 facilitates maintenance and repair by technicians. Furthermore, since the battery module 120 is typically large and heavy, placing it below the energy storage converter module 130 lowers the center of gravity of the entire energy storage mechanism 100, improving its overall stability.

[0072] In addition, the energy storage converter module 130 is equipped with a battery monitoring and management system (BMS) to ensure the normal use of the battery energy storage device and to guarantee the service life of the battery module 120.

[0073] In this embodiment, the energy storage converter module 130 is equipped with a display screen to facilitate the operation and use of the battery energy storage device by users and installation and maintenance personnel.

[0074] Reference Figure 1 In the first embodiment of this example, the energy storage mechanism 100 further includes a power distribution box module 140 stacked with the battery module 120. The power distribution box module 140 is disposed between the energy storage converter module 130 and the battery module 120.

[0075] It is known that by setting up the power distribution box module 140, the battery energy storage device can be ensured to operate efficiently, stably, and safely, thereby improving the reliability, flexibility, and scalability of the battery energy storage device to meet the needs of different application scenarios.

[0076] In addition, the distribution box module 140 is placed between the energy storage converter module 130 and the battery module 120 to separate the energy storage converter module 130 and the battery module 120. On the one hand, this can reduce the risks of high-voltage arcs and short circuits, and ensure the safety of the battery energy storage device. On the other hand, it can prevent the heat from accumulating between the energy storage converter module 130 and the battery module 120, and ensure the use of the battery energy storage device.

[0077] Reference Figure 1 In the second embodiment of this example, the energy storage mechanism 100 further includes a charging pile module 150 stacked with the battery module 120. The charging pile module 150 is disposed between the energy storage converter module 130 and the battery module 120.

[0078] Understandably, the configuration of the charging pile module 150 enriches the functionality of the battery energy storage device and enhances the user experience.

[0079] In addition, by placing the charging pile module 150 between the energy storage converter module 130 and the battery module 120, the charging pile module 150 can be placed at a higher height, which makes it convenient for users to charge or use third-party devices (such as new energy vehicles) and ensure the user experience.

[0080] Reference Figure 1 and Figure 6 In the third embodiment of this example, the energy storage mechanism 100 further includes a power distribution box module 140 and a charging pile module 150 stacked with the battery module 120. The charging pile module 150 and the power distribution box module 140 are disposed between the energy storage converter module 130 and the battery module 120, with the power distribution box module 140 located above the charging pile module 150.

[0081] It is understood that this embodiment can simultaneously achieve the beneficial technical effects that the power distribution box module 140 and the charging pile module 150 can achieve in the two embodiments described above, and will not be elaborated further here.

[0082] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 In this embodiment, the energy storage mechanism 100 may further include an energy storage top cover 160.

[0083] The bottom of the energy storage top cover 160 is matched with the top of the battery module 120, the charging pile module 150, the power distribution box module 140 and the energy storage converter module 130.

[0084] The energy storage top cover 160 is placed on the battery module 120, charging pile module 150, power distribution box module 140 or energy storage converter module 130 located on top of the energy storage mechanism 100.

[0085] Understandably, the energy storage top cover 160 can provide physical protection for the battery module 120, charging pile module 150, power distribution box module 140, or energy storage converter module 130 of the energy storage mechanism 100, avoiding impact damage to the battery module 120, charging pile module 150, power distribution box module 140, or energy storage converter module 130 when they are located on top, thus ensuring the service life of the battery energy storage device.

[0086] Reference Figure 7 and Figure 8 In this embodiment, the energy storage top cover 160 may include a front cover plate 161, a rear cover plate 162, a top cover plate 163, a left cover plate 164, and a right cover plate 165. The front cover plate 161 and the rear cover plate 162 are respectively connected to the front end and the rear end of the top cover plate 163. The left cover plate 164 is disposed at the left end of the front cover plate 161, the rear cover plate 162, and the top cover plate 163, and the left cover plate 164 is located below the top cover plate 163 and between the front cover plate 161 and the rear cover plate 162. The right cover plate 165 is disposed at the right end of the front cover plate 161, the rear cover plate 162, and the top cover plate 163, and the right cover plate 165 is located below the top cover plate 163 and between the front cover plate 161 and the rear cover plate 162.

[0087] The bottom ends of the front cover 161, rear cover 162, top cover 163, left cover 164, and right cover 165 are set as flat surfaces. The tops of the battery module 120, charging pile module 150, distribution box module 140, and energy storage converter module 130 that contact the front cover 161, rear cover 162, top cover 163, left cover 164, and right cover 165 are set as flat surfaces.

[0088] It is understood that the energy storage top cover 160 can be specifically configured as a front cover 161, a rear cover 162, a top cover 163, a left cover 164, and a right cover 165 connected together, so as to enable the energy storage top cover 160 to provide physical protection for the battery module 120, the charging pile module 150, the power distribution box module 140, or the energy storage converter module 130 of the energy storage mechanism 100.

[0089] Furthermore, the bottom ends of the front cover 161, rear cover 162, top cover 163, left cover 164, and right cover 165 are set as flat surfaces. At the same time, the tops of the battery module 120, charging pile module 150, distribution box module 140, and energy storage converter module 130 that contact the front cover 161, rear cover 162, top cover 163, left cover 164, and right cover 165 are set as flat surfaces. This allows the bottom of the energy storage top cover 160 to be universally matched with the tops of the battery module 120, charging pile module 150, distribution box module 140, and energy storage converter module 130.

[0090] Reference Figure 7 and Figure 8 In this embodiment, the left cover plate 164 is detachably disposed on the left end of the front cover plate 161, the rear cover plate 162 and the top cover plate 163, and the right cover plate 165 is detachably disposed on the right end of the front cover plate 161, the rear cover plate 162 and the top cover plate 163.

[0091] It is understood that the battery energy storage device of this embodiment will include multiple energy storage mechanisms 100, and thus have multiple energy storage top covers 160. During the transportation of the battery energy storage device before installation, the multiple energy storage top covers 160 are usually stacked together. If the left cover plate 164 is configured to be integrally connected with the front cover plate 161, the rear cover plate 162 and the top cover plate 163, and the right cover plate 165 is configured to be integrally connected with the front cover plate 161, the rear cover plate 162 and the top cover plate 163, the presence of the left cover plate 164 and the right cover plate 165 will prevent the two energy storage top covers 160 from being stacked together, which will increase the stacking height of the multiple energy storage top covers 160.

[0092] By configuring the left cover plate 164 to be detachably connected to the front cover plate 161, the rear cover plate 162, and the top cover plate 163, and configuring the right cover plate 165 to be detachably connected to the front cover plate 161, the rear cover plate 162, and the top cover plate 163, the left cover plate 164 and the right cover plate 165 can be removed from the energy storage top cover 160 when transporting the battery energy storage device. This allows multiple energy storage top covers 160 to be stacked together, minimizing the height of the stacked energy storage top covers 160 and reducing the transportation space occupied by the multiple energy storage top covers 160, thereby reducing the transportation cost of the energy storage mechanism 100 and the battery energy storage device.

[0093] In a modified embodiment, limiting protrusions (or limiting grooves) can be provided on the planes at the bottom ends of the front cover plate 161, rear cover plate 162, top cover plate 163, left cover plate 164, and right cover plate 165. At the same time, limiting grooves (or limiting protrusions) are provided on the planes at the top of the battery module 120, charging pile module 150, distribution box module 140, and energy storage converter module 130. The limiting protrusions match the limiting grooves, and after the energy storage top cover 160 is assembled onto the energy storage mechanism 100, the limiting protrusions extend into the limiting grooves, so that the energy storage top cover 160 will not be displaced in the front-back, left-right, and right directions, thereby ensuring the connection stability of the energy storage top cover 160 with the battery module 120, charging pile module 150, distribution box module 140, and energy storage converter module 130, respectively.

[0094] Reference Figure 1 , Figure 2 and Figure 9 In this embodiment, heat dissipation holes 310 are provided on the top of the energy storage top cover 160, the left and right sides of the battery module 120, the left and right sides of the charging pile module 150, the left and right sides of the power distribution box module 140, and the left and right sides of the energy storage converter module 130.

[0095] Understandably, the heat dissipation effect of the battery module 120, charging pile module 150, power distribution box module 140 and energy storage converter module 130 can be improved by setting the heat dissipation hole 310, so as to ensure the normal operation of the battery energy storage device.

[0096] Reference Figure 2 and Figure 9 In this embodiment, heat dissipation strips 320 that protrude to the left and right respectively are provided on the left and right sides of the battery module 120, the left and right sides of the charging pile module 150, the left and right sides of the distribution box module 140 and the left and right sides of the energy storage converter module 130, and the adjacent heat dissipation holes 310 are provided. The heat dissipation strips 320 extend in the vertical direction.

[0097] Understandably, the heat dissipation strip 320 can further improve the heat dissipation effect of the battery module 120, charging pile module 150, power distribution box module 140 and energy storage converter module 130, so as to ensure the working performance of the battery energy storage device.

[0098] Reference Figure 1 , Figure 2 and Figure 4In this embodiment, when installing the battery energy storage device, firstly, select an appropriate number of bases 110 and connecting harnesses 200 according to the installation space height of the battery energy storage device, and place multiple bases 110 at the target position. Then, connect the multiple bases 110 through the connecting harnesses 200. Select the number of battery modules 120 according to the design capacity of the battery energy storage device. Configure the charging pile module 150 and the power distribution box module 140 of the battery energy storage device according to the user's usage requirements. Finally, stack and install the battery modules 120, energy storage converter module 130, charging pile module 150 and power distribution box module 140, and cover the top of the energy storage mechanism 100 with the energy storage top cover to complete the installation of the battery energy storage device.

[0099] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A battery energy storage device, characterized in that, include: Multiple energy storage mechanisms, each energy storage mechanism including a base and one or more stacked battery modules disposed on the base, wherein the base is provided with an energy storage quick-connect structure, the energy storage quick-connect structure being connected to the battery modules adjacent to the base: A connecting harness is provided at both ends with a harness quick-connect structure that matches the energy storage quick-connect structure. The harness quick-connect structures at both ends are detachably connected to the energy storage quick-connect structures of any two energy storage mechanisms for transmitting communication signals and electrical energy between the two connected energy storage mechanisms.

2. The battery energy storage device according to claim 1, characterized in that, The energy storage quick-connect structure is located on the outer side of the base to facilitate the connection between the energy storage quick-connect structure and the wire harness quick-connect structure.

3. The battery energy storage device according to claim 2, characterized in that, The energy storage quick-connect structure is located on the rear side of the base.

4. The battery energy storage device according to claim 2, characterized in that, The base is provided with a battery stack terminal connector that connects to the energy storage quick-connect structure, and the battery module provided adjacent to the base is connected to the battery stack terminal connector; and, The top of the base is provided with a connector clearance slot, and the battery stacking terminal connector is disposed within the connector clearance slot. The connector clearance slot is used to allow the battery module to connect to the battery stacking terminal connector; and... The energy storage quick-connect structure is located behind the connector clearance slot.

5. The battery energy storage device according to claim 1, characterized in that, The energy storage quick-connect structure and the wire harness quick-connect structure are respectively configured as matching energy storage quick-connect terminals and wire harness quick-connect terminals.

6. The battery energy storage device according to claim 5, characterized in that, The energy storage quick-connect terminal is a quick-connect female terminal, and the wire harness quick-connect terminal is a quick-connect male terminal.

7. The battery energy storage device according to claim 5, characterized in that, The connecting harness includes communication lines and power lines arranged side by side; and... Both the energy storage quick-connect terminal and the wire harness quick-connect terminal include a communication connection terminal and a power connection terminal that are respectively connected to the communication line and the power line.

8. The battery energy storage device according to claim 1, characterized in that, The two energy storage units connected by the connecting harness are adjacent and side by side.

9. The battery energy storage device according to claim 1, characterized in that, One of the plurality of energy storage mechanisms connected via the connecting harness also includes an energy storage converter module located on top of it, the energy storage converter module being positioned above the battery module; and, The energy storage mechanism also includes a power distribution box module and / or a charging pile module stacked with the battery module; and... The charging pile module or the power distribution box module is disposed between the energy storage converter module and the battery module; or... The charging pile module and the power distribution box module are disposed between the energy storage converter module and the battery module, and the power distribution box module is located above the charging pile module.

10. The battery energy storage device according to claim 9, characterized in that, The energy storage mechanism also includes: The bottom of the energy storage top cover is matched with the top of the battery module, the charging pile module, the power distribution box module and the energy storage converter module; The energy storage top cover is installed on the battery module, the charging pile module, the power distribution box module, or the energy storage converter module located on top of the energy storage mechanism.

11. The battery energy storage device according to claim 10, characterized in that, The energy storage top cover includes a front cover plate, a rear cover plate, a top cover plate, a left cover plate, and a right cover plate. The front cover plate and the rear cover plate are respectively connected to the front end and rear end of the top cover plate. The left cover plate is detachably disposed at the left end of the front cover plate, the rear cover plate, and the top cover plate, and is located below the top cover plate and between the front cover plate and the rear cover plate. The right cover plate is detachably disposed at the right end of the front cover plate, the rear cover plate, and the top cover plate, and is located below the top cover plate and between the front cover plate and the rear cover plate. The bottom ends of the front cover, the rear cover, the top cover, the left cover, and the right cover are set as planes. The top parts of the battery module, the charging pile module, the distribution box module, and the energy storage converter module that contact the front cover, the rear cover, the top cover, the left cover, and the right cover are set as planes.

Images