Mobile energy storage equipment

Abstract

A mobile energy storage device disclosed by the present invention comprises a cabinet and a control system, the cabinet is internally divided into an energy storage bin and a power distribution bin which are mutually independent, the side wall of the energy storage bin is provided with a main air inlet, the cabinet is provided with a bin door with a ventilation hole corresponding to the main air inlet, and an air duct plate with a ventilation hole is arranged between the two bins. The top of one side, back to the main air inlet, of the cabinet is provided with an air outlet simultaneously communicated with the two bins. According to the system, a control part is prevented from being affected by a high-heat device through partition layout, the air duct is optimized in combination with the rising characteristic of hot air flow, the heat dissipation effect of the cabinet is greatly improved, the heat dissipation efficiency of the cabinet is improved, and the heat dissipation efficiency of the cabinet is improved. Stable operation of the equipment under outdoor complex working conditions is guaranteed, and the control system is arranged in the energy storage bin and the power distribution bin.

Description

Technical Field

[0001] This invention relates to the field of energy storage system technology, and more specifically, to a mobile energy storage device. Background Technology

[0002] In outdoor construction machinery and off-road vehicle operation scenarios, low-voltage mobile energy storage devices are the core energy supply devices to ensure their continuous operation.

[0003] Existing mobile energy storage devices suffer from unreasonable structural designs, with a prominent conflict between waterproofing and heat dissipation. Most existing low-voltage energy storage systems employ a single-cavity structure, integrating the battery, BMS control system, EMS main control system, power conversion module, and auxiliary functional components into a single cavity. For complex systems with multiple inputs and outputs, this structure results in a large number of ports, all of which must meet stringent waterproofing requirements. This not only makes component selection difficult and costly but also increases the risk of safety hazards due to waterproofing seal failure. Furthermore, the concentrated heat-generating components within the single cavity lead to low heat dissipation efficiency, further impacting equipment stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a mobile energy storage device, comprising: The cabinet contains separate energy storage and power distribution compartments. The side wall of the power storage compartment is provided with a main air inlet that connects to the outside of the cabinet. An air duct plate is provided between the power storage compartment and the control and power distribution compartment. The air duct plate is provided with multiple first ventilation holes. An air outlet is located on the top side of the cabinet facing away from the main air inlet. The air outlet is connected to both the power storage compartment and the control and power distribution compartment. The cabinet is equipped with a first door, which covers the main air inlet and is rotatably connected to the cabinet, and has multiple second ventilation holes.

[0005] The control system is located in both the energy storage compartment and the power distribution compartment.

[0006] The inner wall of the first compartment door is provided with a first louver, and the side of the first louver facing the energy storage compartment has multiple first guide plates, which are inclined upwards.

[0007] According to one embodiment of the present invention, a fan assembly is provided at the air outlet, the fan assembly is arranged across the top of the energy storage compartment and the power distribution compartment, and the fan assembly includes a plurality of cooling fans arranged along the length of the cabinet.

[0008] According to one embodiment of the present invention, a second louver is provided at the air outlet, the second louver is covered on the outside of the fan assembly, and a plurality of second guide plates are provided on the side facing the outside of the cabinet, the plurality of second guide plates being inclined downward.

[0009] According to one embodiment of the present invention, the first compartment door is further provided with a dust cover, which includes a grille cover and a dust net. The grille cover is detachably installed over the first louver, and the dust net is installed between the grille cover and the first louver.

[0010] According to one embodiment of the present invention, the air outlet is further provided with a dustproof net, which is installed on the outside of the second louver.

[0011] According to one embodiment of the present invention, the air duct plate and the first compartment door are staggered along the length of the cabinet.

[0012] According to one embodiment of the present invention, the cabinet is provided with an operation panel and input / output modules on one side of the power distribution compartment. The cabinet is also provided with a charging gun storage area, which is located below the air outlet and close to the operation panel.

[0013] According to one embodiment of the present invention, the cabinet is further provided with an inspection port and a second compartment door. The second compartment door is connected to the power distribution compartment and covers the inspection port. The operation panel is located on the outside of the second compartment door, and the input / output module is located below the operation panel.

[0014] According to one embodiment of the present invention, the control system includes a power distribution control unit and a power energy storage unit. The power distribution control unit and the power energy storage unit are electrically connected, and the power distribution control unit is located in a power distribution compartment, while the power energy storage unit is located in an energy storage compartment. The power distribution control unit includes a control board, an AC output module, a DC output module, a mains charging module, and a charging pile charging module. The power energy storage unit includes a bidirectional inverter, a DC module, and an energy storage module. The control board is electrically connected to the charging pile charging module, the DC output module, the bidirectional inverter, the DC module, and the energy storage module, respectively. The charging pile charging module is connected to the mains charging module and the bidirectional inverter, and the charging pile charging module and the mains charging module are interlocked. The mains charging module is connected to the bidirectional inverter. The AC output module is connected to the bidirectional inverter. The DC output module is connected to the DC module. The bidirectional inverter is connected to the energy storage module. The energy storage module is also connected to the DC module.

[0015] The beneficial effects of this invention are: it separates the energy storage compartment and the power distribution compartment into two relatively independent compartments, preventing the components in the energy storage compartment that generate excessive heat from affecting the components in the power distribution compartment. At the same time, the design of the air duct greatly improves the heat dissipation effect of the cabinet. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is one of the schematic diagrams of the mobile energy storage device in Example 1; Figure 2This is the second schematic diagram of the mobile energy storage device structure in Example 1; Figure 3 This is a sectional view of the top of the cabinet in Example 1; Figure 4 This is a sectional view of the side of the cabinet in Example 1; Figure 5 This is a schematic diagram of the exploded structure of the first compartment door in Example 1; Figure 6 This is a schematic diagram of the exploded structure of the air outlet in Example 1; Figure 7 This is a schematic diagram of the control system in Example 2. Detailed Implementation

[0017] The following drawings disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0018] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0019] Example 1 See Figures 1-6 , Figure 1 This is one of the schematic diagrams of the mobile energy storage device in Example 1. Figure 2 This is the second schematic diagram of the mobile energy storage device in Example 1. Figure 3 This is a sectional view of the top of the cabinet in Example 1. Figure 4 This is a sectional view of the side of the cabinet in Example 1. Figure 5 This is a schematic diagram of the exploded structure of the first compartment door in Example 1. Figure 6This is a schematic diagram of the exploded structure of the air outlet in Embodiment 1. A mobile energy storage device in this example includes a cabinet 1 and a control system 2. The cabinet 1 contains mutually separated energy storage compartments 11 and power distribution compartments 12. The side wall of the energy storage compartment 11 has a main air inlet 111 communicating with the outside of the cabinet 1. A duct plate 13 is provided between the energy storage compartment 11 and the control distribution compartment 12, and the duct plate 13 has multiple first ventilation holes 131. An air outlet 14 is provided on the top of the side of the cabinet 1 facing away from the main air inlet 111, and the air outlet 14 communicates with both the energy storage compartment 11 and the control distribution compartment 12. The cabinet 1 has a first door 15, which covers the main air inlet 111 and is rotatably connected to the cabinet 1, and has multiple second ventilation holes 151. The control system 2 is located in both the energy storage compartment 11 and the power distribution compartment 12. In practical implementation, the energy storage compartment 11 is used to integrate core power components that generate a lot of heat and require high-voltage protection, including battery packs, bidirectional inverters, DC-DC modules, battery control high-voltage boxes, and auxiliary systems. The power distribution compartment 12 is used to centrally arrange control and power distribution components, including EMS control boards, EVCC modules, auxiliary power supplies, and contactors. External airflow enters the main air inlet 111 through the second ventilation hole 151 of the first compartment door 15. Part of the airflow flows directly through the components inside the energy storage compartment 11 and is discharged from the air outlet 14. The other part enters the power distribution compartment 12 through the first ventilation hole 131 of the air duct plate 13, flows through the components inside the power distribution compartment 12, and is discharged from the air outlet 14, forming a dual-compartment collaborative heat dissipation air duct. At the same time, since the air outlet 14 is located at the top on the other side of the main air inlet 111, after the airflow enters the cabinet 1, the hot air rises and the cold air sinks due to the low density of hot air. Therefore, the airflow above is denser and more conducive to heat dissipation. In this example, the energy storage compartment 11 and the power distribution compartment 12 are separated into two relatively independent compartments to prevent the components in the energy storage compartment from generating excessive heat and affecting the components in the power distribution compartment. At the same time, the design of the air duct greatly improves the heat dissipation effect of the cabinet.

[0020] Specifically, the air duct plate 13 and the first compartment door 15 are staggered along the length of the cabinet 1. This staggered arrangement of the air duct plate 13 and the first compartment door 15 creates a non-linear airflow path for the airflow entering through the second ventilation hole 151 and the main air inlet 111, forming a bent airflow path. During this bend, moisture and some dust settle due to inertia, further reducing the risk of them entering the power distribution compartment 12 through the first ventilation hole 131. Simultaneously, it prevents the airflow from directly impacting the air duct plate 13, allowing for a more even distribution of airflow between the two compartments and improving heat dissipation uniformity. In practice, a waterproof rubber ring can be installed at the junction of the first compartment door 15 and the main air inlet 111.

[0021] Preferably, the inner wall of the first door 15 is provided with a first louver 151, and the side of the first louver 151 facing the energy storage compartment 11 has multiple first guide plates 1511, which are inclined upwards. In this way, on the one hand, it guides the airflow entering the main air inlet 111, so that the airflow flows more evenly into the interior of the energy storage compartment 11 and the air duct plate 13, avoiding local airflow congestion. On the other hand, the inclined upward structure can block some of the reverse-flowing water vapor or impurities, reducing the risk of them entering the energy storage compartment 11, while improving the rationality of the airflow path and helping to enhance heat dissipation efficiency.

[0022] Furthermore, a fan assembly 141 is provided at the air outlet 14, spanning the top of the energy storage compartment 11 and the power distribution compartment 12. The fan assembly 141 includes multiple cooling fans 1411 arranged along the length of the cabinet 1. All cooling fans 1411 are electrically connected to the control system 2. By setting up the fan assembly 141, the hot airflow in the two compartments is accelerated, forming an active exhaust cooling effect. Compared with natural cooling, this significantly increases the airflow circulation speed, quickly removing the heat generated by the devices in the two compartments, avoiding local overheating, meeting the heat dissipation requirements of the high-heat devices in the energy storage compartment 11, and ensuring stable system operation.

[0023] Preferably, the first compartment door 15 is further provided with a dust cover 152, which includes a grille cover 1521 and a dustproof net 1522. The grille cover 1521 is detachably installed over the first louver 151, and the dustproof net 1522 is located between the grille cover 1521 and the first louver 1522. The dustproof net 1522 further filters fine dust in the airflow, significantly improving the cleanliness of the airflow entering the main air inlet 111, preventing dust from adhering to the surface of the heating devices and the first ventilation holes 131 of the air duct plate 13 inside the energy storage compartment 11, preventing a decrease in heat dissipation efficiency or device failure. Furthermore, the detachable design of the grille cover 1521 facilitates the cleaning and replacement of the dustproof net 1522, reducing maintenance costs. In specific implementations, the grille cover 1521 can be fixed to the first compartment door 15 with screws.

[0024] Preferably, a second louver 142 is provided at the air outlet 14, covering the outside of the fan assembly 141. The side of the louver 142 facing the outside of the cabinet 1 has multiple second guide vanes 1421, which are inclined downwards. The second louver 142 and the inclined downward-facing second guide vanes 1421 at the air outlet 14 can effectively prevent rainwater, dust, and other external impurities from directly intruding into the fan assembly 141 and the cabinet 1, especially preventing rainwater from seeping into the two compartments in the opposite direction of the airflow.

[0025] Preferably, the air outlet 14 is also provided with a dust filter 143, which is installed on the outside of the second louver 142. Similarly, the dust filter 143 can filter dust and impurities in the outside air, preventing them from entering the cabinet 1 through the air outlet 14, preventing dust from adhering to the blades of the cooling fan 1411 of the fan assembly 141 or the surface of the components in the two compartments, ensuring the normal operation of the fan assembly 141 and the heat dissipation effect of the components, while reducing the frequency of dust cleaning of the internal components and extending the service life of the equipment.

[0026] Furthermore, the cabinet 1, located on one side of the power distribution compartment 12, is equipped with an operation panel 161 and an input / output module 17. The cabinet 1 also includes a charging gun storage area 18, situated below the air outlet 14 and close to the operation panel 161. The operation panel 1611 is electrically connected to the control system 2. It is understood that centralizing the operation panel 1611, the input / output module 17, and the charging gun storage area 18 on one side of the power distribution compartment 12, with the charging gun storage area 18 close to the operation panel 1611 and located below the air outlet 14, centralizes operation, wiring, and charging gun storage. Users can complete charging / discharging operations, status checks, and charging gun storage without having to move around the cabinet 1, adapting to confined space usage scenarios and significantly improving operational convenience. In this example, the operation panel 16 integrates an LCD screen, input / output switches, working status indicator lights, and an emergency stop switch. The input / output module 17 integrates a DC output plug 2131, an AC socket 2121, an auxiliary power socket 2161, a charging pile charging base 2151, and an AC power industrial socket 2141. The charging gun storage area 18 includes a winding reel 181 and a hanging hook 182. The winding reel 181 is used to store the charging gun cable of the DC low-voltage output plug during transportation to avoid cable wear. The hanging hook 182 is used to hang the charging gun during daily use for easy and quick access. It is also on the same plane as the operation panel 1611 for convenient operation.

[0027] The cabinet 1 also includes an inspection port 16 and a second door 161. The second door 161 connects to the power distribution compartment 12 and covers the inspection port 16. An operation panel 1611 is located on the outside of the second door 161, and an input / output module 17 is located below the operation panel 1611. The inspection port 16 and the second door 161 enable separate maintenance of the power distribution compartment 12. The operation panel 1611 on the outside of the second door 161 and the input / output module 17 below it integrate the operation and maintenance areas. Opening the second door 161 allows direct maintenance of the control and power distribution components within the power distribution compartment 12 without disassembling other structures, reducing maintenance difficulty. Furthermore, the vertical arrangement of the operation panel 1611 and the input / output module 17 optimizes the utilization of the side space of the cabinet 1, making the overall structure more compact and the operation logic clearer. Similarly, in practical implementation, a waterproof rubber ring can be installed at the connection between the second door 161 and the inspection port.

[0028] In summary, in this example, the energy storage compartment 11 and the power distribution compartment 12 are separated into two relatively independent compartments to prevent the components in the energy storage compartment from generating excessive heat and affecting the components in the power distribution compartment. At the same time, the design of the air duct greatly improves the heat dissipation effect of the cabinet.

[0029] Example 2 Please refer to Figure 7 , Figure 7 This is a schematic diagram of the control system in Embodiment 2. In this example, the control system 2 includes a power distribution control unit 21 and a power storage unit 22. The power distribution control unit 21 is located in the power distribution compartment 12, and the power storage unit 22 is located in the energy storage compartment 11, so that the power distribution control unit 21 and the power storage unit 22 are separated from each other, and the power distribution control unit 21 and the power storage unit 22 are electrically connected.

[0030] By separating the power distribution control unit 21 and the power storage unit 22, the installation and maintenance of the devices are facilitated. At the same time, this separation layout also provides favorable conditions for independent heat dissipation of different functional components. The power distribution control unit 21 can design a targeted heat dissipation path according to its own heat generation characteristics, and the power storage unit 22 can also quickly dissipate heat through an independent heat dissipation structure, further improving the system's operational reliability and service life.

[0031] Furthermore, the power distribution control unit 21 includes a control board 211, an AC output module 212, a DC output module 213, a mains charging module 214, and a charging pile charging module 215. One end of each of the AC output module 212, DC output module 213, mains charging module 214, and charging pile charging module 215 is exposed on one side of the power distribution compartment 12. The power storage unit 22 includes a bidirectional inverter 221, a DC module 222, and an energy storage module 223. During connection, the control board 211 is electrically connected to the charging pile charging module 215, the DC output module 213, the bidirectional inverter 221, the DC module 222, and the energy storage module 223. The charging pile charging module 215 is connected to both the mains charging module 214 and the bidirectional inverter 221, and the charging pile charging module 215 is interlocked with the mains charging module 214. The mains charging module 214 is connected to the bidirectional inverter 221. The AC output module 212 is connected to the bidirectional inverter 221. The DC output module 213 is connected to the DC module 222. The bidirectional inverter 221 is connected to the energy storage module 223, which is also connected to the DC module 222.

[0032] In this example, the control board 211 is also connected to the operation panel 161. The user can send signals to the control board 211 through the operation panel 161 to control the mobile energy storage device to switch operating modes.

[0033] In actual use, the control board 211 coordinates the working status of each module to control the entire system. The charging module 215 connects to either an AC or DC charging pile. When the charging module 215 connects to an AC charging pile, the user sends an AC charging signal to the control board 211 via the operation panel 161. Upon receiving the signal, the control board 211 activates the AC charging mode and then controls the bidirectional inverter 221 to activate the rectification mode. During charging, the AC charging pile outputs AC power to the charging module 215, which then outputs the AC power to the bidirectional inverter 221. The bidirectional inverter 221 receives the AC power from the AC charging pile and converts it to DC power, which is then output to the energy storage module 223 to charge it. It should be noted that when the charging module 215 of the charging pile is connected to the AC charging pile, the AC charging module 214 is turned off, forming an interlock between the charging module 215 of the charging pile and the AC charging module 214. This prevents the charging module 215 of the charging pile and the AC charging module 214 from working at the same time, thus improving the safety of the system.

[0034] When the charging module 215 of the charging pile is connected to the DC charging pile, the user sends a DC charging signal to the control board 211 through the operation panel 161. After receiving the DC charging signal, the control board 211 activates the DC charging mode. After activating the DC charging mode, the control board 211 controls the DC module 222 to start. During charging, the DC charging pile outputs DC power to the charging module 215. After passing through the charging module 215, the DC power is input to the energy storage module 223 to charge the energy storage module 223.

[0035] The mains charging module 214 is used to connect to the mains power supply. When the mains charging module 214 is connected to the mains power supply, the user can activate the mains charging mode via the operation panel 161. After activating the mains charging mode, the control board 211 controls the mains charging module 214 to conduct and controls the charging pile charging module 215 to cut off, while simultaneously controlling the bidirectional inverter 221 to activate the rectification mode. During charging, the mains current is input and passes through the mains charging module 214, and then the mains current is input to the bidirectional inverter 221. The bidirectional inverter 221 receives the mains current and rectifies it into DC output. The DC output from the bidirectional inverter 221 is input into the energy storage module 223 to charge the energy storage module 223.

[0036] The DC output module 213 is used to connect to external electrical equipment. When the DC output module 213 is connected to the external electrical equipment, the user controls the control board 211 to activate the DC output mode via the operation panel 161. After activating the DC output mode, the control board 211 controls the DC module 222 to turn on and controls the energy storage module 223 to discharge. The energy storage module 223 outputs an electrical signal, which is then converted into a suitable voltage output by the DC module 222. The output electrical signal is then output to the external electrical equipment via the DC output module 213 to power the external electrical equipment. It should be noted that the DC module is a DC-DC module, used for voltage conversion, and is existing technology.

[0037] The AC output module 212 is used to connect to external electrical equipment and provide AC power to it. When the external electrical equipment is connected to the AC output module 212, the user controls the control board 211 to activate the AC output mode via the operation panel 161. After activating the AC output mode, the control board 211 controls the bidirectional inverter 221 to activate the inverter mode and controls the energy storage module 223 to discharge. The DC power released by the energy storage module 223 is input into the bidirectional inverter 221 and converted into AC power output. The AC power output by the bidirectional inverter 221 is then output to the external electrical equipment via the AC output module 212 to power it.

[0038] Thus, by setting up AC output module 212, DC output module 213, mains charging module 214, and charging pile module 215, the mobile energy storage device has multiple charging and discharging methods, greatly improving the system's practicality and adaptability to various scenarios. In outdoor operation scenarios, users can flexibly choose DC or AC output according to the type of electrical equipment without the need for additional conversion equipment; and in different charging environments, whether connected to a mains socket or using a public charging pile, the energy storage module 223 can be quickly replenished with power, effectively solving the problem of single charging method and limited use of traditional energy storage devices, and meeting the power needs of multiple scenarios such as home emergency, outdoor camping, and small-scale projects.

[0039] Furthermore, the charging module 215 includes a charging base 2151, an interlocking relay K2, an EVCC module 2152, relays K3 and K4. One end of the charging base 2151 is exposed in the power distribution compartment 12 for connection to the charging pile. The charging base 2151 has AC-L, AC-N, PE, CS, CP, DC+, and DC- terminals. The interlocking relay K2 has terminals 1, 2, 3, 4, 5, 6, 7, and 8. During connection, the AC-L and AC-N terminals are connected to terminals 1 and 2 of the interlocking relay K2, respectively; the PE terminal is grounded; and the CS and CP terminals are connected to the EVCC module 2152. Terminals 3 and 4 of the interlocking relay K2 are connected to the mains charging module 214, and terminals 5-8 of the interlocking relay K2 are connected to the bidirectional inverter 221. The DC+ terminal is connected to one end of relay K3, and the other end of relay K3 is connected to bidirectional inverter 221. The DC- terminal is connected to one end of relay K4, and the other end of relay K4 is connected to bidirectional inverter 221.

[0040] It should be noted that the EVCC module 2152 is used for converting PLC communication from European / American standard charging piles to Chinese standard CAN communication. This module, through its built-in protocol conversion algorithm, can parse and convert the PLC (Power Line Carrier) communication signals used by European or American standard charging piles, making them conform to the format and transmission requirements of the Chinese standard CAN communication protocol. This achieves communication compatibility between mobile energy storage devices and charging piles of different standards, ensuring accurate and stable data exchange during the charging process.

[0041] When the AC charging pile is connected to the charging base 2151, the user controls the control board 211 to activate the AC charging mode via the operation panel 161. After activating the AC charging mode, the control board 211 controls the interlock relay K2 to turn on terminals 1 and 2, while turning off terminals 3 and 4. Simultaneously, the control board 211 controls the bidirectional inverter 221 to activate the rectification mode. Then, the control board 211 communicates with the energy storage module 223 to obtain the required charging signal. After obtaining the required charging signal from the energy storage module 223, the control board 211 sends communication information to the AC charging pile. The AC charging pile receives the communication information and outputs an electrical signal accordingly. The electrical signal output from the AC charging pile is input to the AC-L and AC-N terminals, output to the charging base 2151, passes through the interlock relay K2, and then enters the bidirectional inverter 221. The bidirectional inverter 221 receives and rectifies the electrical signal into DC output. The DC output from the bidirectional inverter 221 is input into the energy storage module 223 to charge the energy storage module 223.

[0042] When the DC charging pile is connected to the charging base 2151, the user controls the control board 211 to activate the DC charging pile charging mode via the operation panel 161. After activating the DC charging mode, the control board 211 controls the interlock relay K2 to open, and then the control board 211 communicates with the energy storage module 223 to obtain the charging signal required by the energy storage module 223. After obtaining the charging signal required by the energy storage module 223, the control board 211 sends communication information to the DC charging pile according to the charging signal required by the energy storage module 223. After receiving the communication information, the DC charging pile outputs an electrical signal according to the communication information. At the same time, the control board 211 controls relays K3 and K4 to close. The DC power output from the DC charging pile is output from the DC+ and DC- terminals, and then output to the energy storage module 223 through relays K3 and K4 to charge the energy storage module 223.

[0043] The mains charging module 214 includes an industrial mains socket 2141, one end of which is exposed in the distribution compartment 12. The industrial mains socket 2141 has an AC-L1 terminal, an AC-N1 terminal, and a PE terminal, wherein the PE terminal is grounded, and the AC-L1 and AC-N1 terminals are connected to terminals 3 and 4 of the interlock relay K2, respectively. When the industrial mains socket 2141 is connected to the mains power, the user controls the control board 211 to activate the mains charging mode via the operation panel 161. After activating the mains charging mode, the control board 211 controls terminals 3 and 4 of the interlock relay K3 to conduct, while simultaneously controlling terminals 1 and 2 to cut off. Then, the control board 211 controls the bidirectional inverter 221 to activate the rectification mode. Mains current is input from the industrial mains socket 2141, then passes through the interlock relay K2, and is input to the bidirectional inverter 221. The bidirectional inverter 221 receives the mains current and rectifies it into direct current. Meanwhile, the control board 211 communicates with the energy storage module 223 to obtain the charging signal required by the energy storage module 223, and then controls the bidirectional inverter 221 to output DC power according to the charging signal required by the energy storage module 223. The DC power output by the bidirectional inverter 221 is input into the energy storage module 223 to charge the energy storage module 223.

[0044] The AC output module 212 includes an AC socket 2121 and a relay K1. One end of the AC socket 2121 is exposed in the distribution compartment 12. The AC socket 2121 has an AC-L2 terminal and an AC-N2 terminal, which are connected to one end of the relay K1. The other end of the relay K1 is connected to the bidirectional inverter 221.

[0045] When an external electrical appliance is connected to the AC output module 212, the user controls the control board 211 to activate the AC output mode via the operation panel 161. After activating the AC output mode, the control board 211 controls the relay K1 to close. Simultaneously, the control board 211 communicates with the energy storage module 223 to obtain the charging signal required by the energy storage module 223. Then, the control board 211 controls the bidirectional inverter 221 to activate the inverter mode. After the control board 211 controls the bidirectional inverter 221 to activate the inverter mode, it controls the energy storage module 223 to discharge according to the charging signal required by the energy storage module 223. The discharge current from the energy storage module 223 is input into the bidirectional inverter 221. The bidirectional inverter 221 receives the discharge current released by the energy storage module 223 and inverts it into AC power before outputting it. The AC power output from the bidirectional inverter 221 is then output to the AC socket 2121 after passing through the relay K1, supplying power to the electrical equipment connected to the AC socket 2121.

[0046] The DC output module 213 includes a DC output plug 2131, relay K8, and relay K9. One end of the DC output plug 2131 is exposed in the power distribution compartment 12. The DC output plug 2131 has a CANH terminal, a CANL terminal, a DC+ terminal, and a DC- terminal. The CANH and CANL terminals of the DC output plug 2131 are connected to the control board 211, the DC+ terminal is connected to one end of relay K8, the DC- terminal is connected to one end of relay K9, and the other ends of relays K8 and K9 are connected to the DC module 222.

[0047] In this example, the DC output plug 2131 is used to connect to the low-voltage non-road vehicle. When the low-voltage non-road vehicle is connected to the DC output plug 2131, the user controls the control board 211 to activate the DC output mode via the operation panel 161. After activating the DC output mode, the control board 211 communicates with the low-voltage non-road vehicle through the CANH and CANL terminals of the DC output plug 2131 to obtain the charging information of the low-voltage non-road vehicle. After obtaining the charging information of the low-voltage non-road vehicle, the control board 211 generates a DC output signal based on the charging information and sends the DC output signal to the energy storage module 223. The energy storage module 223 receives the DC output signal and discharges according to the DC output signal. At the same time, the control board 211 controls relays K8 and K9 to close. The electrical signal output by the energy storage module 223 is input to the DC output plug 2131 after passing through relays K8 and K9, and then output to the low-voltage non-road vehicle through the DC output plug 2131 to supply power to the low-voltage non-road vehicle.

[0048] Furthermore, the power distribution control unit 21 also includes an auxiliary power supply module 216. The auxiliary power supply module 216 can supply power to electrical appliances such as industrial lighting and power tools. The auxiliary power supply module 216 includes an auxiliary power socket 2161, an auxiliary power supply 2162, and a relay K5. One end of the auxiliary power socket 2161 is exposed in the power distribution compartment 12. The auxiliary power socket 2161 has a 24V- terminal and a 24V+ terminal. During connection, the 24V- terminal and the 24V+ terminal are respectively connected to the auxiliary power supply 2162. One end of the relay K5 is connected to the auxiliary power supply 2162, and the other end is connected to the energy storage module 223.

[0049] When an electrical appliance is connected to the auxiliary power supply module 216, the user controls the control board 211 to activate the auxiliary power supply via the operation panel 161. After activating the auxiliary power supply, the control board 211 controls the relay K5 to close, and then controls the energy storage module 223 to discharge. The energy storage module 223 releases DC power, which passes through the relay K5 and is input to the auxiliary power supply 2162. The auxiliary power supply 2162 receives the DC power and converts it into 24V DC power before outputting it. The 24V DC power output from the auxiliary power supply 2162 is sent to the auxiliary power socket 2161 to power the electrical equipment connected to the auxiliary power socket 2161.

[0050] Furthermore, the energy storage module 223 includes a high-voltage box 2231 and a battery pack 2232. The high-voltage box 2231 is electrically connected to both the control board 211 and the battery pack 2232. The high-voltage box 2231 is used to control the battery pack 2232, and it has a built-in BMS system and related systems, which can realize real-time status detection, charging and discharging control, and protection functions for the battery pack 2232. The battery pack 2232 is used for energy storage.

[0051] In this example, the power distribution control unit 21 also includes a relay K6, one end of which is connected to the energy storage module 223, and the other end is connected to the bidirectional inverter 221. The relay K6 is used to control the on or off state between the energy storage module 223 and the bidirectional inverter 221.

[0052] When the control system 2 activates the AC output mode, the control board 211 controls relays K6 and K1 to close. Then, the control board 211 controls the energy storage module 223 to output an electrical signal. This signal passes through relay K6 and is input into the bidirectional inverter 221. The bidirectional inverter 221 then converts the electrical signal from the energy storage module 223 into AC power and outputs it. The AC power output from the bidirectional inverter 221 passes through relay K1 and is input into the AC socket 2121, which then supplies power to external electrical appliances.

[0053] In this example, the power distribution control unit 21 also includes a relay K7, one end of which is connected to the DC module 222, and the other end is connected to the energy storage module 223. The relay K7 is used to control the connection and disconnection between the energy storage module 223 and the DC module 222.

[0054] When the control system 2 activates the DC output mode, the control board 211 controls relays K7, K8, and K9 to close. Then, the control board 211 controls the energy storage module 223 to output an electrical signal. This signal passes through relay K7 and is input into the DC module 222. The DC module 222 then adjusts the voltage of the signal and outputs the adjusted signal. The signal output from the DC module 222 passes through relay K8 and is then output to the DC output connector 2131, which supplies power to external electrical appliances.

[0055] Furthermore, in this example, the bidirectional inverter 221, high-voltage box 2231, DC module 222, and battery pack 2232 all have an IP65 waterproof protection rating, effectively preventing smoke and dust or moisture from entering. This ensures that the energy storage device can still operate stably in outdoor rain, humid environments, or dusty scenarios, effectively improving the applicability and safety of mobile energy storage devices in complex environments, extending the service life of each core component, and reducing the risk of failure caused by external environmental factors.

[0056] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A mobile energy storage device, characterized in that, The system includes a cabinet (1) and a control system (2). The cabinet (1) is provided with an energy storage compartment (11) and a power distribution compartment (12) that are separated from each other. The side wall of the energy storage compartment (11) is provided with a main air inlet (111) that communicates with the outside of the cabinet (1). A duct plate (13) is provided between the energy storage compartment (11) and the power distribution compartment (12). The duct plate (13) is provided with a plurality of first ventilation holes (131). An air outlet (14) is provided on the top of the side of the cabinet (1) facing away from the main air inlet (111). The air outlet (14) communicates with both the energy storage compartment (11) and the power distribution compartment (12). The cabinet (1) is provided with a first compartment door (15). The first compartment door (15) covers the main air inlet (111) and is rotatably connected to the cabinet (1). It has a plurality of second ventilation holes (151). The control system (2) is located in the energy storage compartment (11) and the power distribution compartment (12).

2. The mobile energy storage device according to claim 1, characterized in that, The inner wall of the first door (15) is provided with a first louver (152). The first louver (152) has multiple first guide plates (1521) on the side facing the energy storage compartment (11). The first guide plates (1521) are inclined upward.

3. The mobile energy storage device according to claim 1, characterized in that, A fan assembly (141) is provided at the air outlet (14). The fan assembly (141) is set across the top of the energy storage compartment (11) and the power distribution compartment (12). The fan assembly (141) includes multiple cooling fans (1411) arranged along the length of the cabinet (1). The multiple cooling fans (1411) are electrically connected to the control system (2).

4. The mobile energy storage device according to claim 3, characterized in that, The air outlet (14) is provided with a second louver (142), which covers the outside of the fan group (141). The side of the fan group (141) facing the outside of the cabinet (1) has multiple second guide plates (1421), which are inclined downwards.

5. The mobile energy storage device according to claim 2, characterized in that, The first door (15) is also provided with a dust cover (153), which includes a fence cover (1531) and a dust net (1532). The fence cover (1531) is detachably installed outside the first louver (152), and the dust net (1532) is located between the fence cover (1531) and the first louver (152).

6. The mobile energy storage device according to claim 3, characterized in that, The air outlet (14) is also provided with a dustproof net (143), which is installed on the outside of the second louver (142).

7. The mobile energy storage device according to claim 1, characterized in that, The air duct plate (13) and the first compartment door (15) are staggered along the length of the cabinet (1).

8. The mobile energy storage device according to claim 1, characterized in that, The cabinet (1) is located on one side of the power distribution compartment (12) and is equipped with an operation panel (1611) and an input / output module (17). The cabinet (1) is also equipped with a charging gun storage area (18), which is located below the air outlet (14) and close to the side of the operation panel (1611). The operation panel (1611) is electrically connected to the control system (2).

9. The mobile energy storage device according to claim 8, characterized in that, The cabinet (1) is also provided with an inspection port (16) and a second compartment door (161). The second compartment door (162) is connected to the power distribution compartment (12). The second compartment door (161) covers the inspection port (16). The operation panel (1611) is located outside the second compartment door (161). The input / output module (17) is located below the operation panel (1611).

10. The mobile energy storage device according to claim 1, characterized in that, The control system (2) includes a power distribution control unit (21) and a power energy storage unit (22). The power distribution control unit (21) is electrically connected to the power energy storage unit (22), and the power distribution control unit (21) is located in the power distribution compartment (12), while the power energy storage unit (22) is located in the energy storage compartment (11). The power distribution control unit (21) includes a control board (211), an AC output module (212), a DC output module (213), a mains charging module (214), and a charging pile charging module (215). The power energy storage unit (22) includes a bidirectional inverter (221), a DC module (222), and an energy storage module (223). The control board (211) is connected to the charging pile charging module (215) and the DC output module (214), respectively. 3) The bidirectional inverter (221), DC module (222), and energy storage module (223) are electrically connected; the charging pile module (215) is connected to the mains charging module (214) and the bidirectional inverter (221) respectively, and the charging pile module (215) and the mains charging module (214) are interlocked; the mains charging module (214) is connected to the bidirectional inverter (221); the AC output module (212) is connected to the bidirectional inverter (221); the DC output module (213) is connected to the DC module (222); the bidirectional inverter (221) is connected to the energy storage module (223); the energy storage module (223) is also connected to the DC module (222).

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