Mobile energy storage system and mobile energy storage vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JERRY MIND ENERGY CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-16
Smart Images
Figure CN224366962U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power technology, and in particular to mobile energy storage systems and mobile energy storage vehicles. Background Technology
[0002] With the development of new energy technologies and power systems, mobile energy storage vehicles, as flexible power supply and regulation devices, are widely used in emergency power supply, new energy consumption, oil and gas extraction, and power supply security in remote areas. However, existing mobile energy storage vehicles still have significant technical bottlenecks in their structural design. For example, the unreasonable layout of various internal devices in mobile energy storage vehicles leads to low space utilization, making the vehicles extremely large and limiting their mobility and adaptability to different scenarios. Moreover, unreasonable layouts result in low heat dissipation efficiency, affecting the stability of equipment operation. Utility Model Content
[0003] Therefore, it is necessary to provide a mobile energy storage system and a mobile energy storage vehicle to address at least one of the technical problems mentioned above.
[0004] This application provides a mobile energy storage system, the mobile energy storage system comprising:
[0005] A mobile chassis, wherein the mobile chassis comprises at least a first chassis and a second chassis connected together;
[0006] Temperature control device, wherein the temperature control device is disposed on the first chassis;
[0007] An energy management device is disposed on the first chassis and located behind the temperature control device;
[0008] An energy storage device, wherein the energy storage device is disposed on the second chassis;
[0009] Inverter, the inverter being mounted on the second chassis;
[0010] A transformer unit comprising at least two transformers, each transformer having a different voltage level, wherein a plurality of transformers are disposed on at least one of the first chassis and the second chassis.
[0011] In one embodiment, the transformer unit includes:
[0012] A low-voltage control cabinet is installed on the first chassis and is located behind the temperature control device.
[0013] A high-voltage transformer is mounted on the second chassis and is located behind the inverter.
[0014] A high-voltage junction box is installed on the second chassis and is located behind the inverter.
[0015] A low-voltage transformer is disposed on the second chassis and located behind the inverter.
[0016] In one embodiment, the voltage rating of the low-voltage transformer is configured to 480V; and / or,
[0017] The voltage rating of the high-voltage transformer is configured to be 13.8 kV; and / or,
[0018] The distance between the low-voltage control cabinet and the temperature control device is less than the distance between the energy management device and the temperature control device; and / or,
[0019] The second chassis includes a front area and a rear area, with the energy storage device located in the front area and the inverter, the high-voltage transformer, the high-voltage junction box, and the low-voltage transformer located in the rear area; and / or,
[0020] The inverter is located behind the energy storage device.
[0021] In one embodiment, the length of the first chassis is greater than or equal to 3000 mm, and the length of the temperature control device is less than or equal to 2000 mm; and / or,
[0022] The first chassis is located in front of the second chassis; and / or,
[0023] The height of the first chassis is greater than the height of the second chassis; and / or,
[0024] The temperature control device is configured as an air-cooled device or a liquid-cooled device; and / or,
[0025] The mobile chassis is configured as a car chassis or a semi-trailer chassis.
[0026] In one embodiment, the energy storage device includes a high-voltage junction box and at least one battery cluster, each battery cluster comprising a plurality of battery packs connected in parallel, and the high-voltage junction box being connected in parallel with the plurality of battery clusters.
[0027] In one embodiment, the energy storage device includes at least one mounting rack, a plurality of battery packs are disposed inside the mounting rack, a high-voltage junction box is disposed at the bottom of the mounting rack, and each battery pack is fixedly mounted to the mounting rack by at least one locking member.
[0028] In one embodiment, the energy storage device further includes a battery compartment, the number of battery clusters being configured to be several, the several battery clusters being disposed within the compartment of the battery compartment, wherein maintenance space is provided between adjacent battery clusters.
[0029] In one embodiment, the battery compartment is provided with corner fittings, the mobile chassis is provided with a rotary lock, the battery compartment is connected to the mobile chassis via the corner fittings, and the corner fittings are locked or unlocked to the mobile chassis via the rotary lock.
[0030] In one embodiment, the mobile energy storage system includes:
[0031] Firefighting equipment, wherein the firefighting equipment is installed on the mobile chassis; and / or,
[0032] The chassis hull includes a hull frame, a cover hull, and several doors. The hull frame is disposed on the mobile chassis, the cover hull is disposed on the hull frame, and the doors are disposed on the cover hull.
[0033] This application provides a mobile energy storage vehicle, which includes the mobile energy storage system.
[0034] In the aforementioned mobile energy storage systems and vehicles, the energy storage device should be positioned as close to the front as possible to shift the center of gravity forward, ensuring the load complies with road regulations. Placing the temperature control device on the front of the first chassis maximizes the surface area for direct heat exchange with the outside environment, avoiding obstruction and loss of airflow caused by other equipment on the front or rear of the temperature control device. Furthermore, the inverter's internal circuit board on the rear second chassis also requires heat dissipation, necessitating heat exchange with the outside. Positioning the temperature control device on the front of the first chassis and the inverter on the second chassis keeps the temperature control device as far away from the inverter as possible, preventing turbulent heat exchange gases caused by excessive proximity when both are dissipating heat, which could affect temperature control performance. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of a mobile energy storage vehicle provided in one embodiment of this application.
[0036] Figure 2 For example Figure 1 An enlarged schematic diagram of the fit between the corner fittings and the rotary lock of the mobile energy storage vehicle.
[0037] Figure 3 This is a schematic diagram of the structure of a mobile energy storage system provided in one embodiment of this application.
[0038] Figure 4 For example Figure 3The diagram shows the power connection of the mobile energy storage system.
[0039] Figure 5 For example Figure 1 The diagram shows the structure of the energy storage device in the mobile energy storage vehicle.
[0040] Figure 6 For example Figure 5 The diagram shows the structure of the battery cluster in the energy storage device.
[0041] Figure 7 For example Figure 5 The diagram shows the assembly structure of the battery cluster and battery compartment of the energy storage device.
[0042] Figure 8 For example Figure 7 A partially enlarged schematic diagram of the first location of the battery cluster and battery compartment shown.
[0043] Figure 9 For example Figure 7 A partially enlarged schematic diagram of the second location of the battery cluster and battery compartment shown.
[0044] Icon labels:
[0045] 1000. Mobile chassis; 2000. Temperature control device; 3000. Energy management device; 4000. Energy storage device; 5000. Inverter; 6000. Low-voltage control cabinet; 7000. High-voltage transformer; 8000. High-voltage junction box; 9000. Low-voltage transformer;
[0046] 1100, First chassis; 1200, Second chassis; 1210, Forward area; 1220, Rear area; 1300, Chassis hull; 1310, Hull frame; 1320, Covering hull; 1330, Hatch door;
[0047] 4100 Battery cluster; 4110 High-voltage junction box; 4120 Battery pack; 4121 Connecting cable; 4130 Assembly frame; 4131 Locking component;
[0048] 4200 Battery compartment; 4210 Corner fittings; 4220 Rotary lock;
[0049] 4300, maintenance space. Detailed Implementation
[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0056] See Figure 1 As shown, this application provides a mobile energy storage vehicle, which includes a mobile energy storage system. (See reference...) Figure 2 and Figure 3 As shown, the mobile energy storage system may include a mobile chassis 1000, a temperature control device 2000, an energy management device 3000, an energy storage device 4000, an inverter 5000, and a transformer unit, etc. The mobile chassis 1000 can be configured as a car chassis or a semi-trailer chassis, etc., responsible for carrying the temperature control device 2000, energy management device 3000, energy storage device 4000, inverter 5000, and transformer unit, and serving a transportation function. It should be noted that the mobile chassis 1000 can be divided into a first chassis 1100 and a second chassis 1200. The first chassis 1100 is located in front of the second chassis 1200, and the height of the first chassis 1100 is greater than the height of the second chassis 1200.
[0057] Continue reading Figure 2 and Figure 3As shown, the mobile chassis 1000 includes at least a first chassis 1100 and a second chassis 1200 connected together. A temperature control device 2000 may be located on the first chassis 1100. An energy management device 3000 may be located on the first chassis 1100, and is situated behind the temperature control device 2000. An energy storage device 4000 may be located on the second chassis 1200. An inverter 5000 may be located on the second chassis 1200. The transformer unit includes at least two transformers, each with a different voltage rating, and several transformers are located on at least one of the first chassis 1100 and the second chassis 1200.
[0058] The mobile energy storage system is supported by a mobile chassis 1000. The overall weight and load on each axle must be considered to meet road regulations. Firstly, in addition to considering the total system weight, the most important component in the layout is the energy storage device 4000, which accounts for the majority of the weight distribution. Calculations and experiments show that the energy storage device 4000 needs to be placed as close to the front as possible to shift the center of gravity forward, ensuring the load meets road regulations.
[0059] The temperature control device 2000 can be configured as an air-cooled or liquid-cooled device depending on the cooling medium. It primarily controls the heat of the energy storage device 4000 and also provides heat dissipation for other equipment in the mobile energy storage vehicle. In the above structural layout, based on the structural characteristics of the temperature control device 2000 (such as a liquid chiller or air-cooled air conditioner), the top and sides of the temperature control device 2000 need to exchange heat with the outside environment in multiple directions. Therefore, placing the temperature control device 2000 on the front of the first chassis 1100 ensures that the surface of the temperature control device 2000 directly exchanges heat with the outside environment as much as possible. Compared to placing the temperature control device 2000 in the approximate middle position of the mobile chassis 1000, this avoids obstruction and loss of airflow caused by other equipment on the front and rear sides of the temperature control device 2000.
[0060] Furthermore, the internal circuit board of the inverter 5000 located in the second chassis 1200 at the rear also needs heat dissipation. Therefore, the inverter 5000 also needs to exchange heat with the outside. Placing the temperature control device 2000 in the first chassis 1100 at the front and the inverter 5000 in the second chassis 1200 can also keep the temperature control device 2000 as far away from the inverter 5000 as possible, so as to avoid the heat exchange gas disturbance caused by the close distance when the two are dissipating heat at the same time, which would affect the temperature control effect.
[0061] The inverter 5000 can be composed of a DC / AC bidirectional converter and a control unit, and has bidirectional conversion capabilities. In charging mode, the inverter 5000 converts external AC power into DC power through its DC / AC bidirectional converter and stores the electrical energy in the energy storage device 4000. In discharging mode, the process is reversed, converting the DC power from the energy storage device 4000 into AC power for external output. The inverter 5000 and the energy storage device 4000 are not integrated in the above design layout primarily because the wiring harness connecting the inverter 5000 to the back end is far more extensive than the cable connecting it to the energy storage device 4000, making assembly and disassembly inconvenient.
[0062] Considering that the commonly used voltage levels in North American industrial sectors are 480V and 13.8kV, in one embodiment, the transformer unit may include a low-voltage control cabinet 6000, a high-voltage transformer 7000, a high-voltage junction box 8000, and a low-voltage transformer 9000. The inverter 5000 may be located behind the energy storage device 4000 or in other locations. The inverter 5000 may be connected to the energy storage device 4000 and the high-voltage transformer 7000 and low-voltage transformer 9000 respectively. Preferably, the inverter 5000 is connected between the energy storage device 4000 and the high-voltage transformer 7000 and low-voltage transformer 9000 for easy wiring connections.
[0063] A low-voltage control cabinet 6000 is located on the first chassis 1100, and is situated behind the temperature control device 2000. A high-voltage transformer 7000 is located on the second chassis 1200, and is situated behind the inverter 5000. A high-voltage wiring cabinet 8000 is located on the second chassis 1200, and is situated behind the inverter 5000. A low-voltage transformer 9000 is located on the second chassis 1200, and is situated behind the inverter 5000. The second chassis 1200 may include a front area 1210 and a rear area 1220. The energy storage device 4000 is located in the front area 1210, and the inverter 5000, high-voltage transformer 7000, high-voltage wiring cabinet 8000, and low-voltage transformer 9000 are located in the rear area 1220.
[0064] The spacing between the low-voltage control cabinet 6000 and the temperature control device 2000 can be designed to be smaller than the spacing between the energy management device 3000 and the temperature control device 2000. The low-voltage control cabinet 6000 is connected to the low-voltage transformer 9000, which outputs a low-level voltage. The high-voltage transformer 7000 is connected to the high-voltage junction box 8000, which outputs a high-level voltage. In this case, the voltage level of the low-voltage transformer 9000 can be configured to 480V, and the voltage level of the high-voltage transformer 7000 can be configured to 13.8kV, outputting 480V and 13.8kV respectively. In addition, those skilled in the art can choose to install three or more transformers according to actual needs, thereby providing other combinations of voltage levels.
[0065] Several external loads can be connected to the low-voltage control cabinet 6000 and the high-voltage junction box 8000 via aviation plugs or other quick-connect methods, making plugging and unplugging simple and efficient. The high-voltage cables matched to the high-voltage junction box 8000 generally have a larger diameter and bending radius, making them inconvenient to bend. To ensure heat dissipation and current carrying capacity, copper busbars are mostly used instead of high-voltage cables, therefore the distance between the high-voltage junction box 8000 and the high-voltage transformer 7000 cannot be too far. Therefore, the high-voltage junction box 8000 and the high-voltage transformer 7000 can be connected as follows: Figure 2 As shown, it is also arranged in the rear area 1220 of the second chassis 1200. At the same time, equipment with high-voltage parts can also be integrated together and centrally isolated, so the current arrangement is the most reasonable.
[0066] A towing device, such as a towing pin, can be installed at the front of the mobile chassis 1000. This towing device connects to the tractor unit, and the mobile chassis 1000 can be steered using the towing device as the center. To avoid interference with the rear of the tractor unit during steering, the length of the mobile chassis 1000 is typically no less than 3000mm, while the overall width or thickness of the temperature control device 2000 (such as a liquid chiller or air-cooled air conditioner) is generally no greater than 2000mm. Therefore, the remaining space on the first chassis 1100 can be used to house the low-voltage control cabinet 6000 and the energy management device 3000. This fully utilizes the space of the first chassis 1100 while ensuring that the distance between the temperature control device 2000 and the energy storage device 4000 is not too great, allowing the length of the liquid cooling pipes and air-cooling channels to be designed within a reasonable range.
[0067] The Energy Management Device 3000 can include both hardware and software structures. The hardware structure mainly includes sensors, control switches, and actuators, while the software structure mainly includes the control system. The Energy Management Device 3000 is primarily responsible for data management and monitoring, control strategies, fault diagnosis and maintenance, and safety protection functions. (See also...) Figure 4As shown, the status of the energy storage device 4000, such as voltage, current, temperature, SOC, SOH, and other fault and alarm information, can be fed back to the energy management device 3000 through the BMS. At the same time, the energy management device 3000 also collects information from other devices through a specific communication interface to perform data management, monitoring, control, and optimization, ensuring the stable and efficient operation of the system.
[0068] See Figures 5 to 9 As shown, in one embodiment, the energy storage device 4000 may include a high-voltage junction box 4110 and at least one battery cluster 4100. Each battery cluster 4100 includes several battery packs 4120 connected in parallel. The high-voltage junction box 4110 is connected to the battery cluster 4100. All battery packs 4120 have the same specifications (such as voltage level, capacity, etc.). The positive and negative terminals of all battery packs 4120 are connected in series via connecting cables 4121 to form a battery cluster 4100 with a higher voltage level. The battery cluster 4100 is then connected to the high-voltage junction box 4110.
[0069] The high-voltage junction box 4110 may contain circuit breakers, pre-charge relays, fuses, shunts, pre-charge resistors, etc., and integrates the battery cluster 4100 management unit (BCU) and switching power supply. Its main functions include electrical connection and distribution, protection and safety control, signal monitoring and control, and providing external interfaces. Different battery clusters 4100 can be connected in parallel through each high-voltage junction box 4110 to form a battery stack. Because the battery clusters 4100 are connected in parallel, the voltage level of the battery stack is the same as that of the battery clusters 4100, and the parallel connection between battery clusters 4100 only changes the total system capacity.
[0070] In one embodiment, the energy storage device 4000 includes at least one mounting frame 4130, with several battery packs 4120 assembled inside the mounting frame 4130. A high-voltage junction box 4110 is located at the bottom of the mounting frame 4130. Each battery pack 4120 is fixedly mounted to the mounting frame 4130 by at least one locking element 4131. For example, the locking element 4131 can be installed at suitable positions such as the front and side of each battery pack 4120. When a single battery pack 4120 malfunctions and needs to be removed, maintenance personnel can disassemble the battery pack 4120 individually from the front and side of the battery cluster 4100, improving maintenance efficiency.
[0071] In one embodiment, the energy storage device 4000 further includes a battery compartment 4200, which may be an integral welded skid. The number of battery clusters 4100 is configured to be several, and the several battery clusters 4100 are arranged in the compartment of the battery compartment 4200. A maintenance space 4300 is provided between adjacent battery clusters 4100 to facilitate maintenance personnel to enter the maintenance space 4300 to perform disassembly, maintenance and other operations on the battery pack 4120, thereby ensuring the stable transportation of the battery pack 4120.
[0072] In one embodiment, the battery compartment 4200 is equipped with corner fittings 4210, and the mobile chassis 1000 is equipped with a rotary lock 4220. The battery compartment 4200 is connected to the mobile chassis 1000 via the corner fittings 4210, and the corner fittings 4210 are locked or unlocked to the mobile chassis 1000 via the rotary lock 4220. Therefore, through the cooperation between the corner fittings 4210 and the rotary lock 4220, the energy storage device 4000 can be quickly disassembled and assembled relative to the mobile chassis 1000. For example, under different road regulations, in areas where there is a risk of overloading, the energy storage device 4000 can be completely disassembled and transported separately by another chassis vehicle, avoiding overloading violations by the mobile energy storage vehicle.
[0073] In one embodiment, the mobile energy storage system may further include fire-fighting equipment and a chassis 1300. The fire-fighting equipment is installed on the mobile chassis 1000 and may include a fire control panel, detectors, fire cylinders, fire piping, sprinklers, fans, and control boxes, integrating detection, fire-fighting medium storage, and discharge devices. The detectors can monitor information such as temperature, smoke, and combustible gases in real time. In the event of thermal runaway, the fire-fighting equipment will promptly discharge extinguishing media to suppress the fire.
[0074] The chassis hull 1300 includes a hull frame 1310, a cover shell 1320, and several hatches 1330. The hull frame 1310 is mounted on the mobile chassis 1000, the cover shell 1320 is mounted on the hull frame 1310, and the hatches 1330 are mounted on the cover shell 1320. Furthermore, louvers can be installed at locations requiring heat dissipation, such as the temperature control device 2000, the low-voltage transformer 9000, and the high-voltage transformer 7000, to facilitate heat exchange. The cover shell 1320 can be detachable for easy hoisting of internal equipment. The high-voltage transformer 7000 and the high-voltage junction box 8000 are centrally located at the rear of the vehicle body and isolated, forming a high-voltage chamber. A protective door equipped with a sensor switch can be installed in the high-voltage chamber. When an operator opens the protective door, the sensor switch sends a signal to the EMS, cutting off power to the system and preventing operators from accidentally entering the high-voltage chamber and causing an accident.
[0075] Several battery clusters 4100 of the energy storage device 4000 can be combined to form a DC bus. The DC bus is connected to the inverter 5000, and after being converted into AC power, it is connected to transformers of different voltage levels, such as high-voltage transformer 7000 and low-voltage transformer 9000, to convert the voltage level to the value required by the back end. It can be used in conjunction with other power sources (grid power, generators, wind / solar microgrid systems, etc.) to supply power to the load.
[0076] In conjunction with mains power or generator sets, the mobile energy storage system assists the grid / generator set output through grid-connected mode. In grid-connected mode, charging and discharging can be switched manually or automatically. When the working load power exceeds the grid / generator set power, the energy storage system discharges to supplement the grid / generator set power. When the working load power is less than or equal to the grid / generator set power, the mobile energy storage system charges to absorb excess power from the grid / generator set.
[0077] It can be used as a black start power source to provide power for generator start-up and lubrication systems. When the power grid fails and the generator shuts down, the DC bus loses power, and the signal is synchronously transmitted to the energy storage system, which can immediately switch to off-grid mode with a millisecond-level response, ensuring uninterrupted power supply at the site. In conjunction with a microgrid, it can store the electrical energy generated by wind / solar power and then discharge it externally.
[0078] This mobile energy storage vehicle can perform functions such as peak shaving and valley filling, smoothing fluctuations, peak and frequency regulation, black start, and emergency power supply for power systems. The vehicle integrates a mobile chassis 1000 at its bottom, enhancing its mobility and flexibility. The mobile energy storage vehicle can be integrated with solar, wind, and other microgrids to store and release electricity. For example, it can work with the power grid to profit from peak-valley price differences, or it can be used with diesel generators and gas turbines to provide power to areas without grid coverage. Alternatively, it can also be used as an emergency power supply vehicle.
[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A mobile energy storage system, characterized in that, The mobile energy storage system includes: A mobile chassis, wherein the mobile chassis comprises at least a first chassis and a second chassis connected together; Temperature control device, wherein the temperature control device is disposed on the first chassis; An energy management device is disposed on the first chassis and located behind the temperature control device; An energy storage device, wherein the energy storage device is disposed on the second chassis; Inverter, the inverter being mounted on the second chassis; A transformer unit comprising at least two transformers, each transformer having a different voltage level, wherein a plurality of transformers are disposed on at least one of the first chassis and the second chassis.
2. The mobile energy storage system according to claim 1, characterized in that, The transformer unit includes: A low-voltage control cabinet is installed on the first chassis and is located behind the temperature control device. A high-voltage transformer is mounted on the second chassis and is located behind the inverter. A high-voltage junction box is installed on the second chassis and is located behind the inverter. A low-voltage transformer is disposed on the second chassis and located behind the inverter.
3. The mobile energy storage system according to claim 2, characterized in that, The voltage rating of the low-voltage transformer is configured to 480V; and / or, The voltage rating of the high-voltage transformer is configured to be 13.8 kV; and / or, The distance between the low-voltage control cabinet and the temperature control device is less than the distance between the energy management device and the temperature control device; And / or, The second chassis includes a front area and a rear area, with the energy storage device located in the front area and the inverter, the high-voltage transformer, the high-voltage junction box, and the low-voltage transformer located in the rear area; and / or, The inverter is located behind the energy storage device.
4. The mobile energy storage system according to claim 1, characterized in that, The length of the first chassis is greater than or equal to 3000 mm, and the length of the temperature control device is less than or equal to 2000 mm; and / or, The first chassis is located in front of the second chassis; And / or, The height of the first chassis is greater than the height of the second chassis; and / or, The temperature control device is configured as an air-cooled device or a liquid-cooled device; and / or, The mobile chassis is configured as a car chassis or a semi-trailer chassis.
5. The mobile energy storage system according to claim 1, characterized in that, The energy storage device includes a high-voltage junction box and at least one battery cluster, each battery cluster containing several battery packs connected in parallel, and the high-voltage junction box is connected in parallel with several battery clusters.
6. The mobile energy storage system according to claim 5, characterized in that, The energy storage device includes at least one mounting frame, with a plurality of battery packs housed inside the mounting frame, a high-voltage junction box located at the bottom of the mounting frame, and each battery pack being fixedly mounted to the mounting frame by at least one locking element.
7. The mobile energy storage system according to claim 6, characterized in that, The energy storage device also includes a battery compartment, and the number of battery clusters is configured to be several. Several battery clusters are arranged inside the battery compartment, wherein maintenance space is provided between adjacent battery clusters.
8. The mobile energy storage system according to claim 7, characterized in that, The battery compartment is equipped with corner fittings, and the mobile chassis is equipped with a rotary lock. The battery compartment is connected to the mobile chassis via the corner fittings, and the corner fittings are locked or unlocked to the mobile chassis via the rotary lock.
9. The mobile energy storage system according to claim 1, characterized in that, The mobile energy storage system includes: Firefighting equipment, wherein the firefighting equipment is installed on the mobile chassis; and / or, The chassis hull includes a hull frame, a cover hull, and several doors. The hull frame is disposed on the mobile chassis, the cover hull is disposed on the hull frame, and the doors are disposed on the cover hull.
10. A mobile energy storage vehicle, characterized in that, The mobile energy storage vehicle includes the mobile energy storage system as described in any one of claims 1-9.