Movable multifunctional power supply equipment

Abstract

The utility model relates to movable multifunctional power supply equipment which comprises an external power supply interface, an internal charging interface and a power supply circuit, the power supply circuit comprises a battery module unit, a high-voltage box unit, a weak current power supply unit, an energy management system unit and an energy storage converter, and the battery module unit is connected with the high-voltage box unit. Battery modules are arranged in the battery module units; the high-voltage box unit is respectively connected with the energy management system unit, the energy storage converter and the weak current power supply unit; the energy storage converter is respectively connected with the external power supply interface, the high-voltage box unit and the energy management system unit; the energy management system unit is respectively connected with the high-voltage box unit, the energy storage converter and the weak current power supply unit; the weak current power supply unit is connected with the battery module unit, the high-voltage box unit and the energy management system unit. And the internal charging interface comprises an alternating current charging interface connected with the energy storage converter and a direct current charging interface connected with the high-voltage box unit. The vehicle-mounted charger can be used for flexibly and quickly charging different products such as automobiles and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage and power supply, in particular to a movable multifunctional power supply device. Background Art

[0002] With the implementation of environmental protection and sustainable development, new energy devices such as electric vehicles are becoming increasingly common. However, the corresponding supporting power supply facilities are relatively lagging, unable to fully meet the demand. Especially for electric vehicles traveling long distances at high speeds, their users generally have charging anxiety. The existing power supply facilities are mainly fixed charging piles built at fixed points, generally fixedly installed in residential communities, parks, underground parking lots of shopping malls, highway service stations, and some other large places. For electric vehicles on the road with power consumption requirements, they basically cannot be met, which is also the main difficulty for electric vehicle users. Moreover, these fixed charging piles require land and fixed space, and generally have some problems such as time-consuming and costly civil construction, large difficulty in capacity expansion and cable laying, and long cost recovery period. These problems are particularly prominent for the currently large-capacity DC fast charging piles. In addition, the commonly configured AC slow charging piles and DC fast charging piles of the existing charging piles mainly adopt AC charging technology, with AC input. There are different degrees of restrictions on the categories and specifications of the electrical equipment they serve, and the utilization rate is relatively low.

[0003] In the prior art, Patent CN202111447974.0 discloses a movable charging pile for new energy vehicles and its working method. The charging pile includes a base and a first support rod. The upper end of the first support rod is bolted to the four corner positions of the lower end of the base; slidable adjustment locking seat structures are respectively installed on the left and right sides at the middle position inside the base; charging pile mechanisms are respectively installed on the upper ends of the slidable adjustment locking seat structures. Through the arrangement of the disc spring between the fixed box and the winding roller, this patent facilitates the wire storage work during use, thus preventing wire chaos from affecting the charging work. The movable function of this patent is to drive the charging pile by sliding a short distance on the slide rail support rod. However, when the charging pile of this patent is applied as a whole, the construction mode of a fixed charging pile is still adopted, and the power supply mode and the types of power supply equipment are still the traditional single mode for a single power-consuming product. For another example, Patent CN202311727885.0 discloses a power supply system and power supply method for new energy vehicles, including a charging module, a cloud processing platform, a scheduling system, and a fixed charging station installed on the vehicle body; an information processing module is also installed on the vehicle body, and the information processing module is electrically connected to the charging module. The purpose is to facilitate the transmission of the signal of the fixed charging station to the information processing module, thereby forming an information network with multiple different vehicle bodies, so as to reasonably allocate the usage of the charging piles and mobile battery packs inside the fixed charging station, and improve the utilization rate of the charging piles and mobile battery packs inside different fixed charging stations. This patent is not only based on the application of fixed charging piles, but also has a single power supply mode, and still targets a single product in terms of the types of power supply equipment. It cannot supply power to multiple devices outside the vehicle simultaneously, nor can it provide multiple charging modes for electrical equipment such as vehicles.

[0004] Therefore, it is urgent to research and develop better power supply equipment to flexibly meet the power consumption needs of new energy vehicles and other equipment of different categories and specifications under different working conditions. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a movable multi-functional power supply equipment in view of the problems existing in the prior art, which saves construction land, greatly reduces the input cost, and can flexibly meet the different charging needs of different users.

[0006] The technical solution for the present utility model to solve the problem is: a movable multi-functional power supply device, including an external power supply interface, an internal charging interface, and a power supply circuit. The external power supply interface and the internal charging interface are respectively connected to the power supply circuit. The power supply circuit includes a battery module unit, a high-voltage box unit, a weak-current power supply unit, an energy management system unit, and a battery energy storage converter. Among them, the battery module unit is connected to the high-voltage box unit, and battery modules are provided in the battery module unit; the high-voltage box unit is respectively connected to the energy management system unit, the battery energy storage converter, and the weak-current power supply unit; the battery energy storage converter is respectively connected to the external power supply interface, the high-voltage box unit, and the energy management system unit; the energy management system unit is respectively connected to the high-voltage box unit, the battery energy storage converter, and the weak-current power supply unit; the weak-current power supply unit is respectively connected to the battery module unit, the high-voltage box unit, and the energy management system unit; the internal charging interface includes an AC charging interface and a DC charging interface. The DC charging interface is connected to the high-voltage box unit, and the AC charging interface is connected to the battery energy storage converter; the external power supply interface includes a DC charging pile unit and an AC charging pile unit. The DC charging pile unit and the AC charging pile unit are respectively connected to the battery energy storage converter.

[0007] Further, in the movable multi-functional power supply device of the present utility model, the battery module unit includes more than two groups of battery modules. In each group of battery modules, a battery pack, a battery management unit, a fuse, a heating device, and a cooling device respectively connected to the battery pack are provided; the battery modules in each group are connected in series; the high-voltage box unit includes a battery cluster control unit; the battery management units provided in each group of battery modules are all connected to the battery cluster control unit; the battery cluster control unit is respectively connected to the energy management system unit and the battery energy storage converter.

[0008] Preferably, in the movable multi-functional power supply device of the present utility model, the high-voltage box unit further includes a main positive relay, a main negative relay, and a heating relay. The main positive relay, the main negative relay, and the heating relay are respectively connected to the battery cluster control unit; the heating relay is connected in series with the heating devices provided in each battery module.

[0009] Preferably, in the movable multi-functional power supply device of the present utility model, the heating device is arranged near the bottom of the battery module housing inside the battery module housing, and the heating device is a polyimide film.

[0010] Preferably, in the movable multi-functional power supply device of the present utility model, cooling unit interface terminals are provided on the housings of each group of battery modules, and the cooling unit interface terminals are connected to the cooling device.

[0011] Further, in the movable multi-functional power supply device of the present utility model, the low-voltage power supply unit includes a black start switch, an isolating switch power supply, and a power supply module connected in sequence. The black start switch is connected to the high-voltage box unit, and the power supply module is connected to the energy management system unit.

[0012] Preferably, in the movable multi-functional power supply device of the present utility model, the isolating switch power supply is a DC24V power supply, and the power supply module is a DC12V power supply.

[0013] Further, in the movable multi-functional power supply device of the present utility model, the energy management system unit includes an industrial gateway, an industrial Ethernet switch, and an industrial control all-in-one machine connected in sequence; the industrial gateway is connected to the high-voltage box unit; the industrial Ethernet switch is connected to the energy storage inverter; the industrial gateway, the industrial Ethernet switch, and the industrial control all-in-one machine are respectively connected to the low-voltage power supply unit.

[0014] Further, in the movable multi-functional power supply device of the present utility model, an indicator light unit is further included. The indicator light unit includes more than two groups of indicator lights, at least including a first indicator light and a second indicator light; wherein, the first indicator light is connected to the mains input end; the second indicator light is connected to the circuit breaker.

[0015] Further, in the movable multi-functional power supply device of the present utility model, the movable multi-functional power supply device further includes an IoT network communication device, and the IoT network communication device is arranged in the DC charging pile unit and / or the AC charging pile unit.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: It provides an innovative power supply device that can achieve fast charging for devices such as pure electric vehicles and hybrid electric vehicles, and can also quickly supply power to other electrical products such as outdoor speakers, other power tools, and emergency rescue equipment. At the same time, it can meet the power consumption needs of multiple products with different specifications, and has multiple selectable power supply modes and can be adjusted according to needs, so as to be able to implement relevant charging operations highly flexibly, stably and reliably, and is easy to apply. It is conducive to the overall movement of the device according to the needs of different application scenarios and electrical equipment, without the need for construction such as land occupation, transformer capacity expansion, and cable laying, greatly reducing the cost investment compared with fixed charging piles, and being more suitable for field operations than other charging equipment. Therefore, it is conducive to solving the power consumption difficulties of devices such as electric vehicles at places where fixed charging piles are not installed or are not suitable for installation, effectively alleviating the anxiety of relevant users, and also providing an effective supplement to the application of charging piles, making up for the market shortage, solving some pain points of existing charging piles, and being suitable for popularization and application in the fields of energy storage and power supply demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the structural block diagram (1) of the movable multi-functional power supply device in some embodiments of the present utility model;

[0018] Figure 2 It is the structural block diagram (2) of the movable multi-functional power supply device in some embodiments of the present utility model;

[0019] Figure 3 It is the partial circuit structure schematic diagram (1) of the power supply circuit of the movable multi-functional power supply device in some embodiments of the present utility model;

[0020] Figure 4 It is the partial circuit structure schematic diagram (2) of the power supply circuit of the movable multi-functional power supply device in some embodiments of the present utility model;

[0021] Figure 5 It is the partial circuit structure schematic diagram (3) of the power supply circuit of the movable multi-functional power supply device in some embodiments of the present utility model;

[0022] Figure 6 It is the partial circuit structure schematic diagram (4) of the power supply circuit of the movable multi-functional power supply device in some embodiments of the present utility model;

[0023] Figure 7 It is the schematic diagram of the distribution of the wiring pins of the vehicle communication interface of the movable multi-functional power supply device in some embodiments of the present utility model;

[0024] Figure 8 It is the schematic diagram of the distribution of the wiring pins of the DC charging interface of the movable multi-functional power supply device in some embodiments of the present utility model;

[0025] Figure 9 For Figure 7 the wiring pins of the vehicle communication interface and Figure 8 the partial corresponding connection relationship and function table of the wiring pins of the DC charging interface.

[0026] As shown in the figure:

[0027] PCS - Energy Storage Inverter; BMU - Battery Management Unit; BCU - Battery Cluster Control Unit; SB1 - PCS Control Switch; QF8 - Black Start Switch;

[0028] LA1 - First Indicator Light, LA2 - Second Indicator Light, LA3 - Third Indicator Light;

[0029] QF1 - First Circuit Breaker, QF2 - Second Circuit Breaker, QF3 - Third Circuit Breaker, QF4 - Fourth Circuit Breaker, QF5 - Fifth Circuit Breaker, QF6 - Sixth Circuit Breaker, QF7 - Seventh Circuit Breaker;

[0030] XS1 - DC Charging Interface, XS2 - AC Charging Interface;

[0031] K1 - Main Positive Relay, K2 - Main Negative Relay, K3 - Heating Relay, K4 - Maintenance Switch, R1 - Pre - charge Resistor, HR1 - Current Hall Sensor, FU1 - First Fuse, FU2 - Second Fuse, FU3 - Third Fuse. Specific Embodiments

[0032] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments, but the protection scope of the present utility model is not restricted by any of the embodiments and is not limited thereto. Additionally, in order to avoid causing unnecessary confusion to the essence of the present utility model, well - known structural components, components, circuits, and usage methods are not described in detail.

[0033] Embodiment 1

[0034] In some embodiments of the present utility model, such as Figure 1-2As shown in the figure, the movable multi-functional power supply device of the present utility model includes an external power supply interface, an internal charging interface, and a power supply circuit. The external power supply interface and the internal charging interface are respectively connected to the power supply circuit. The power supply circuit includes a battery module unit, a high-voltage box unit, a power conversion system (PCS for short), an energy management system unit (EMS for short), and a low-voltage power supply unit. Among them, the battery module unit is connected to the high-voltage box unit, and battery modules are provided in the battery module unit; the high-voltage box unit is respectively connected to the energy management system unit, the power conversion system, and the low-voltage power supply unit; the power conversion system is respectively connected to the external power supply interface, the high-voltage box unit, and the energy management system unit; the energy management system unit is respectively connected to the high-voltage box unit, the power conversion system, and the low-voltage power supply unit; the low-voltage power supply unit is respectively connected to the battery module unit, the high-voltage box unit, and the energy management system unit; the internal charging interface includes an AC charging interface and a DC charging interface. The DC charging interface is connected to the high-voltage box unit, and the AC charging interface is connected to the power conversion system; the external power supply interface includes a DC charging pile unit and an AC charging pile unit. The DC charging pile unit and the AC charging pile unit are respectively connected to the power conversion system.

[0035] In the above embodiments, under the control of the energy management system unit, the battery module unit is used to sequentially output current to the DC charging pile unit and / or the AC charging pile unit in the external power supply interface via the high-voltage box unit and the energy storage converter, send the status information of the battery module unit to the high-voltage box unit, and receive instructions sent by the high-voltage box unit. Among them, the battery module unit provides output current externally through the internal battery modules; the high-voltage box unit is used to receive the status information of the battery module unit and send it to the energy management system unit and the energy storage converter, receive instructions sent by the energy management system unit, and send instructions to the battery module unit; the energy storage converter is used to send the status information of the energy storage converter to the energy management system unit, receive instructions sent by the energy management system unit, receive information sent by the high-voltage box unit, adjust the current input to the DC charging pile unit, and adjust the current input to the AC charging pile unit; the energy management system unit is used to process the received information, send instructions to the high-voltage box unit and the energy storage converter according to the data processing situation, and control the shutdown of the movable multi-functional power supply device; the weak current power supply unit is used to supply power to the electrical components in the battery module unit, the high-voltage box unit and the energy management system unit; the DC charging pile unit is used to charge the external devices to be charged with the current adjusted by the energy storage converter; the AC charging pile unit is used to charge the external devices to be charged with the current adjusted by the energy storage converter; the AC charging interface is used to charge the battery module unit internally with alternating current; the DC charging interface is used to charge the battery module unit internally with direct current quickly. Thus, through the organic combination of each unit, the utility model can realize movable power supply without relying on the main power supply, which is beneficial to making up for the deficiencies of fixed charging piles, alleviating the charging anxiety of users of electrical equipment such as electric vehicles far from the main power supply or fixed charging piles, effectively reducing the municipal burden, greatly reducing the cost investment compared with the fixed-site construction of charging piles, and being convenient for field operations far from the urban area.

[0036] In the above embodiments, the DC charging pile unit can select existing DC charging piles and auxiliary devices such as DC charging guns; the AC charging pile unit can select existing AC charging piles and auxiliary devices such as AC charging guns; the battery modules of the battery module unit, the high-voltage box unit, the energy storage converter, the energy management system unit and the weak current power supply unit can all be composed of existing systems or components; therefore, the utility model is also suitable for large-scale popularization and application in various places.

[0037] When specifically applying the present utility model to supply power to a target electrical device, the battery module unit sequentially outputs current to the DC charging pile unit and / or the AC charging pile unit through the high-voltage box unit and the energy storage inverter. The battery module unit is further configured to send the status information of the battery module unit to the high-voltage box unit and receive instructions sent by the high-voltage box unit. Among them, the battery module unit provides output current externally through the internal battery modules to facilitate ensuring sufficient power supply; the high-voltage box unit receives the status information of the battery module unit and sends it to the energy management system unit and the energy storage inverter, receives instructions sent by the energy management system unit, and sends instructions to the battery module unit; the energy storage inverter sends the status information of the energy storage inverter to the energy management system unit, receives instructions sent by the energy management system unit, receives information sent by the high-voltage box unit, and adjusts the current input to the DC charging pile unit and / or the AC charging pile unit; the energy management system unit processes the received information, and sends instructions to the high-voltage box unit, sends instructions to the energy storage inverter, and controls the shutdown of the movable multi-functional power supply device according to the data processing situation; the weak current power supply unit supplies power to the electrical components in the battery module unit, the high-voltage box unit, and the energy management system unit; the DC charging pile unit and / or the AC charging pile unit deliver and charge the external electrical device with the current adjusted by the energy storage inverter. Through the application of this power supply device, it is possible to achieve independence from the dependence on the fixed charging device for the mains power, thereby enabling flexible movement according to the power consumption target, and further realizing the charging of the target electrical device.

[0038] In the above embodiments, when powering the target external electrical equipment, specifically, according to the charging settings of the target electrical equipment, a DC charging pile unit or an AC charging pile unit can be selected for charging. During the power supply application process, when using the DC charging pile unit to charge external electrical equipment such as electric vehicles, the current entering the DC charging pile unit is the current adjusted by inversion through the energy storage inverter. This current is alternating current. After this alternating current enters the DC charging pile unit, it is converted into direct current again in the DC charging pile unit and then output by the DC charging gun. Compared with the existing DC charging piles, the current adjustment process of DC inversion is added, thus ensuring that the power supply device of the present invention can move according to the position of the external electrical equipment that requires DC charging. After the power supply device of the present invention moves to the destination, the DC charging gun of the DC charging pile unit is plugged into the charging interface of the electrical equipment, such as the fast charging port of an electric vehicle, to output direct current and quickly charge the electric vehicle according to the communication protocol specified by the industry. When using the AC charging pile unit to charge external electrical equipment such as electric vehicles, the current entering the AC charging pile unit is the current adjusted by inversion through the energy storage inverter. Compared with the existing AC charging piles, the current adjustment process of DC inversion is added, thus ensuring that the power supply device of the present invention can move according to the position of the external electrical equipment that requires AC charging. After the power supply device of the present invention moves to the destination, the AC charging gun of the AC charging pile unit is plugged into the charging interface of the electrical equipment, such as the slow charging port of an electric vehicle, to output single-phase alternating current and charge the electric vehicle according to the communication protocol specified by the industry.

[0039] In the above embodiments, to ensure efficient regulation and simple operation of the system, preferably, as Figure 3 shown, the power supply circuit further includes a PCS control switch SB1, and the PCS control switch is connected to the energy storage inverter; the PCS control switch is used to control the start and stop of the energy storage inverter. When the PCS control switch is in the closed state, the energy storage inverter is in the normal operating state of starting up, including operations such as performing DC inversion on the current entering the DC charging pile unit and / or the AC charging pile unit; when the PCS control switch is disconnected, after sending an alarm signal to the energy management system unit, the energy storage inverter shuts down and disconnects the network connection with the energy management system unit, and also stops performing operations such as DC inversion on the current entering the DC charging pile unit and / or the AC charging pile unit.

[0040] In the above embodiments, to ensure that the power supply device supplies power to external electrical equipment and meets the needs of different working conditions, preferably, the DC charging pile unit can be connected to the commercial power or the energy storage inverter; the AC charging pile unit can be connected to the commercial power or the energy storage inverter; the energy storage inverter can also be connected in parallel with the commercial power and the DC charging pile unit respectively at the same time, and / or, the energy storage inverter can be connected in parallel with the commercial power and the AC charging pile unit respectively at the same time. In specific applications, multiple power supply modes can be provided for external electrical equipment, and the specific power supply mode can be selected according to the on and off states of the PCS and the working conditions of the electrical equipment to be used.

[0041] When the energy storage inverter is in the on state and the DC charging pile unit is connected to the energy storage inverter, after the PCS performs DC-AC inversion on the direct current input to the PCS from the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is input to the DC charging pile unit, and the DC charging pile unit then supplies power to the external electrical equipment; when the energy storage inverter is in the on state and the AC charging pile unit is connected to the energy storage inverter, after the PCS performs DC-AC inversion on the direct current input to the PCS from the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is input to the AC charging pile unit, and the AC charging pile unit then supplies power to the external electrical equipment; when the energy storage inverter is in the on state and both the DC charging pile unit and the AC charging pile unit are respectively connected in parallel with the energy storage inverter, after the PCS performs DC-AC inversion on the direct current input to the PCS from the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is respectively input to the DC charging pile unit and the AC charging pile unit at the same time, and the DC charging pile unit and the AC charging pile unit then respectively supply power to the external electrical equipment; thus, while supplying power to one or two electrical equipment, off-grid power discharge is achieved. When the energy storage inverter is in the off state, the DC charging pile unit can be connected to the commercial power, and the DC charging pile unit supplies power to the external electrical equipment; when the energy storage inverter is in the off state, the AC charging pile unit can be connected to the commercial power, and the AC charging pile unit supplies power to the external electrical equipment; when the energy storage inverter is in the off state, the DC charging pile unit and the AC charging pile unit can be respectively connected to the commercial power at the same time, and the DC charging pile unit and the AC charging pile unit respectively supply power to the external electrical equipment at the same time; thus, while supplying power to one or two electrical equipment, grid-connected power discharge without the PCS is achieved.

[0042] When the energy storage converter is in the startup state, when the energy storage converter is respectively and simultaneously connected in parallel with the commercial power and the DC charging pile unit, after the PCS performs DC inversion on the direct current input to the PCS by the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is simultaneously input into the commercial power grid and the DC charging pile unit, realizing power supply to external electrical equipment and energy feedback to the grid where the commercial power is located; when the energy storage converter is in the startup state, when the energy storage converter is respectively and simultaneously connected in parallel with the commercial power and the AC charging pile unit, after the PCS performs DC inversion on the direct current input to the PCS by the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is simultaneously input into the commercial power grid and the AC charging pile unit, realizing power supply to external electrical equipment and energy feedback to the grid where the commercial power is located; when the energy storage converter is in the startup state, when the energy storage converter is respectively and simultaneously connected in parallel with the commercial power, the DC charging pile unit and the AC charging pile unit, after the PCS performs DC inversion on the direct current input to the PCS by the battery module unit through the high-voltage box unit, the obtained three-phase alternating current is simultaneously input into the commercial power grid, the DC charging pile unit and the AC charging pile unit, and through the DC charging pile unit and the AC charging pile unit, power supply to external electrical equipment is respectively realized while energy feedback to the grid where the commercial power is located is achieved; thus, power supply to one or two electrical equipment is realized while grid-connected discharging is achieved. The above application of various power supply modes such as off-grid or grid-connected for one or two electrical equipment facilitates power supply to electrical equipment of different specifications, and also provides a choice of various power supply control methods for different types of users, which is conducive to fully eliminating power consumption anxiety.

[0043] In the above embodiment, to enhance the effective regulation and control of power supply to external equipment, preferably, the connection state of the DC charging pile unit with the commercial power or the energy storage converter is controlled by three groups of circuit breakers, the connection state of the AC charging pile unit with the commercial power or the energy storage converter is controlled by three groups of circuit breakers, the connection state of the energy storage converter with the commercial power, the DC charging pile unit or the AC charging pile unit is controlled by three groups of circuit breakers, and the connection state of the energy storage converter with the commercial power, the DC charging pile unit and the AC charging pile unit is controlled by four groups of circuit breakers, so as to facilitate power supply control according to the working condition requirements. Preferably, as Figure 3As shown, the connection state between the DC charging pile unit and the mains power or the energy storage converter is controlled by the first circuit breaker QF1, the second circuit breaker QF2, and the third circuit breaker QF3. Among them, when the first circuit breaker QF1 is disconnected and the second circuit breaker QF2 and the third circuit breaker QF3 are closed, the DC charging pile unit is connected to the energy storage converter, and the off-grid discharge can be achieved to supply power to an external electrical device; when both the first circuit breaker QF1 and the third circuit breaker QF3 are closed and the second circuit breaker QF2 is disconnected, the DC charging pile unit is connected to the mains power, and the grid-connected discharge without the PCS can be achieved to supply power to an external electrical device. Preferably, when the first circuit breaker QF1, the second circuit breaker QF2, and the third circuit breaker QF3 are all closed, the energy storage converter is connected in parallel with the mains power and the DC charging pile unit simultaneously and respectively, and the grid-connected discharge operation mode of supplying power to an external electrical device and realizing energy feedback to the grid where the mains power is located can be achieved. Preferably, as Figure 3 As shown, the connection state between the AC charging pile unit and the mains power or the energy storage converter is controlled by the first circuit breaker QF1, the second circuit breaker QF2, and the fourth circuit breaker QF4. Among them, when the first circuit breaker QF1 is disconnected and the second circuit breaker QF2 and the fourth circuit breaker QF4 are closed, the AC charging pile unit is connected to the energy storage converter, and the off-grid discharge can be achieved to supply power to an external electrical device; when both the first circuit breaker QF1 and the fourth circuit breaker QF4 are closed and the second circuit breaker QF2 is disconnected, the AC charging pile unit is connected to the mains power, and the grid-connected discharge can be achieved to supply power to an external electrical device; when the first circuit breaker QF1, the second circuit breaker QF2, and the fourth circuit breaker QF4 are all closed, the energy storage converter is connected in parallel with the mains power and the AC charging pile unit simultaneously and respectively, and the grid-connected discharge operation mode of supplying power to an external electrical device and realizing energy feedback to the grid where the mains power is located can be achieved. Preferably, as Figure 3As shown, when the first circuit breaker QF1 is disconnected and the second circuit breaker QF2, the third circuit breaker QF3, and the fourth circuit breaker QF4 are all closed, the DC charging pile unit and the AC charging pile unit are simultaneously and respectively connected in parallel with the energy storage converter, enabling the above-mentioned off-grid discharge to supply power to two external electrical devices simultaneously; when the first circuit breaker QF1, the third circuit breaker QF3, and the fourth circuit breaker QF4 are all closed and the second circuit breaker QF2 is disconnected, the DC charging pile unit and the AC charging pile unit are respectively connected to the mains power, enabling the above-mentioned grid-connected discharge without the PCS to supply power to two external electrical devices simultaneously; when the first circuit breaker QF1, the second circuit breaker QF2, the third circuit breaker QF3, and the fourth circuit breaker QF4 are all closed, the energy storage converter is simultaneously and respectively connected in parallel with the mains power, the DC charging pile unit, and the AC charging pile unit, enabling the above-mentioned grid-connected discharge operation mode of supplying power to two external electrical devices and simultaneously feeding back energy to the grid where the mains power is located.

[0044] Embodiment 2

[0045] In some embodiments of the present invention, the basic structure is set the same as that in Embodiment 1. Specifically, to enhance the stability of power supply, the battery module unit includes two or more battery modules. For example, Figure 6 as shown, taking the battery module unit composed of two battery modules, namely battery module A and battery module B, as an example, in each of the battery modules, a battery pack, a battery management unit (referred to as BMU for short), a fuse, a heating device, and a cooling device are respectively provided and connected to the battery pack; the battery modules are connected in series; the high-voltage box unit includes a battery cluster control unit (referred to as BCU for short); the battery management units provided in each of the battery modules are all connected to the battery cluster control unit; the battery cluster control unit is respectively connected to the energy management system unit and the energy storage converter.

[0046] In the above embodiments, the battery pack is used to output direct current. The battery pack is composed of lithium batteries and / or storage batteries or other batteries with good energy storage and charge-discharge effects, preferably a lithium battery pack. The Battery Management Unit (BMU) is used to collect the voltage and temperature status information of each battery cell in the battery module, perform voltage equalization, and send the status information of each battery cell collected through the CAN bus to the BCU. The fuse is used to provide overcurrent protection for the battery pack. The heating device and the cooling device are used to ensure the stable working temperature of the battery module. The battery cluster control unit is used to receive the information sent by the BMU and send the status information of the battery module unit to the EMS and PCS, receive the current information sent by the battery module unit, send it to the PCS, and perform insulation detection on the battery module unit, send the insulation detection information of the battery module to the EMS, receive the instructions sent by the EMS, and send instructions to the heating device or the cooling device. Bidirectional communication is carried out between the battery cluster control unit and the energy management system unit through the CAN communication bus.

[0047] In the specific application process, the energy management system unit processes the information about the battery module received, and sends instructions to the BCU according to the data processing situation. Among them, the BCU sends the received control temperature instruction about the battery module to the heating device or the cooling device to control the working temperature of the battery module. The heating device is controlled to heat the battery module when the temperature is less than or equal to the lowest limit value of the set working temperature, and the cooling device is controlled to cool the battery module when the temperature is greater than or equal to the highest limit value of the set working temperature. Thus, while ensuring power supply to external electrical equipment, the stability of power supply to the battery module unit is ensured within the system. The BCU sends the status information of the battery module unit, such as the battery working status, fault status, etc., to the PCS. The PCS performs charge-discharge control according to the received information. Among them, when receiving the fault information of the battery module, the PCS sends an alarm signal to the EMS and stops working, that is, the PCS stops operating such as DC inversion of the current entering the DC charging pile unit and / or the AC charging pile unit. After receiving the alarm signal, the EMS sends a charge-discharge control instruction of the battery module to the BCU; thus, the shutdown of the movable multifunctional power supply device is realized.

[0048] In the above embodiments, preferably, as Figure 6As shown, the high-voltage box unit further includes a main positive relay, a main negative relay, and a heating relay. The main positive relay, the main negative relay, and the heating relay are respectively connected to the battery cluster control unit; the heating relay is connected in series with the heating devices provided in each battery module. In specific applications, the BCU sends the heating instruction regarding the battery module received from the EMS to the heating relay. After the heating relay is turned on, it is then sent to the heating device to start controlling the working temperature of the battery module. In addition, in specific applications, the BCU sends the charge and discharge control instructions regarding the battery module received from the EMS to the main positive relay and the main negative relay. Among them, when it is necessary to charge the battery module, the main positive relay and the main negative relay are turned on; when it is necessary for the battery module to discharge externally, the main positive relay and the main negative relay are turned on; when it is necessary to stop charging or discharging, the main positive relay and the main negative relay are turned off; thus, the charge and discharge control of the battery module is achieved.

[0049] In the above embodiment, preferably, the heating device is installed inside the housing of the battery module and is disposed near the bottom of the housing, that is, the heating devices inside each group of battery modules are installed inside the corresponding battery module housing. The heating device is preferably a polyimide film (i.e., a PI heating film). In specific applications, the BMU sends the battery cell temperature information collected and monitored in real time to the BCU. When the temperature is less than or equal to the lowest limit of the set working temperature, the BCU outputs an instruction to the heating relay. The heating relay is turned on, and the heating device provided in the corresponding battery module is turned on to start heating; when the temperature reaches the set working temperature range, the BCU outputs an instruction to the heating relay, and the heating relay K3 is turned off, and the heating device provided in the corresponding battery module is turned off, and the heating ends. Thus, the guarantee for the efficient and stable operation of the battery module is enhanced.

[0050] In the above embodiment, preferably, cooling unit interface terminals are provided on the housings of each group of battery modules. The cooling unit interface terminals are connected to the cooling device and are also connected to the BCU, that is, the cooling devices provided in each group of battery modules are connected to the BCU through the cooling unit interface terminals on their housings. In specific applications, the BMU sends the battery cell temperature information monitored in real time to the BCU. When the temperature of the battery module is greater than or equal to the highest limit of the set working temperature, the BCU outputs a refrigeration start instruction to the cooling device provided in the corresponding battery module. The cooling device provided in the corresponding battery module is turned on to start refrigeration; when the temperature reaches the set working temperature range such as 25 °C, the BCU outputs a refrigeration end instruction to the cooling device provided in the corresponding battery module. The cooling device provided in the corresponding battery module is turned off to end refrigeration. Thus, further guarantee is provided for the working stability and service life of the battery module.

[0051] Embodiment 3

[0052] In some embodiments of the present utility model, the basic structure is set the same as that in Embodiment 1 and / or Embodiment 2. Specifically, to enhance the operation stability of the movable multi-functional power supply device of the present utility model, as Figure 3 or Figure 4 or Figure 5 shown, the energy management system unit includes an industrial gateway, an industrial Ethernet switch, and an industrial control all-in-one computer that are connected in sequence; the industrial gateway is connected to the high-voltage box unit; the industrial Ethernet switch is connected to the energy storage converter; the industrial gateway, the industrial Ethernet switch, and the industrial control all-in-one computer are respectively connected to the weak-current power supply unit.

[0053] In the above embodiment, the industrial gateway is used to realize the conversion between CAN communication and Ethernet (English name: Ethernet) network communication; the industrial Ethernet switch is used to realize multi-channel network connection and information exchange through Ethernet; the industrial control all-in-one computer is used to realize human-computer interaction, data processing, control instruction sending, and realize two-way communication with PCS and BCU. Thus, through the simple combination of the industrial gateway, the industrial Ethernet switch, and the industrial control all-in-one computer, the overall energy scheduling management of the system is realized. Specifically, through the two-way communication between the energy management system unit and BCU and PCS, that is, receiving the information sent by BCU and PCS, and performing data processing on the received information, and sending instructions to BCU and sending instructions to PCS according to the data processing situation, the charging and discharging control of the movable multi-functional power supply device of the present utility model is realized, and it can also display real-time data, query historical data, and display abnormal information through a human-computer interaction interface, and can also fully display the voltage, temperature of each single cell of the battery module and the input and output information of PCS, etc.

[0054] In the above embodiment, the EMS performs two-way network communication with the BCU installed in the high-voltage box unit through the industrial gateway via the CAN communication bus. The state information of the battery module received by the BCU includes voltage and temperature state signals, which are transmitted to the industrial control all-in-one computer through the industrial gateway and the industrial Ethernet switch via Ethernet; the EMS performs two-way network communication with the energy storage converter through the industrial Ethernet switch, receives state information signals such as voltage, current, temperature, accident state, abnormal state, and switch state of PCS through Ethernet, and transmits them to the industrial control all-in-one computer through Ethernet; in the industrial control all-in-one computer of the EMS, the received information is processed, and according to the data processing situation, instructions related to the battery module are sent to the BCU through Ethernet via the industrial Ethernet switch, the industrial gateway, and the CAN communication bus; instructions related to PCS are sent to PCS through Ethernet via the industrial Ethernet switch; thereby realizing the control of the charging and discharging state of the energy storage element battery module.

[0055] In the above embodiments, to ensure the data processing and monitoring of the EMS, a database module is provided in the industrial control all-in-one computer of the EMS. A data storage module is provided in the database module. The data storage module preferably includes a real-time database and a historical database. Among them, the real-time database is used to load the real-time data collected by the system, and its value is continuously updated according to the real-time changes of the operating conditions, recording the current state of the monitored device unit. The historical database is used for the long-term preservation of important data.

[0056] In the above embodiments, to ensure the efficient monitoring of the system by the EMS, preferably, an accident alarm unit and a pre-warning alarm unit are provided in the industrial control all-in-one computer of the EMS. Among them, the accident alarm unit is used to send alarm signals for overvoltage and overheating caused by abnormal operations. The pre-warning alarm unit is used to send alarm signals for abnormal status information, or over-limit of voltage quantity, over-limit of current quantity, over-limit of temperature quantity, etc. Preferably, in the industrial control all-in-one computer of the EMS, a PCS fault warning information status table and a fault alarm information record are provided. Among them, the PCS fault warning information status table is used to display the fault warning statuses such as CAN communication fault of the PCS, reverse sequence of grid voltage, unbalance of grid voltage, over-voltage and under-voltage of bus, fan fault, inverter overload, etc. The fault alarm information record is used to record the date, time, type, level, value, etc. of the fault occurrence.

[0057] Embodiment 4

[0058] In some embodiments of the present invention, the basic structure is set the same as that of Embodiment 1, and / or Embodiment 2, and / or Embodiment 3. Specifically, to ensure the stable operation of the power supply equipment, as Figure 3 or Figure 4 or Figure 5 shown, the weak current power supply unit includes a black start switch QF8, an isolating switch power supply and a power module connected to each other. The black start switch QF8 is connected to the high-voltage box unit, and the power module is connected to the energy management system unit.

[0059] In the above embodiments, the specifications of the isolating switch power supply and the power module can be selected according to the specific working conditions. Preferably, the isolating switch power supply is a DC24V power supply (i.e., a direct current 24V power supply), and the power module is a DC12V power supply (i.e., a direct current 12V power supply). In specific applications, when the black start switch QF8 is turned on, the isolating switch power supply supplies power to the power module, each BMU in the battery module unit, the BCU in the high-voltage box unit, the industrial gateway and the industrial Ethernet switch in the EMS with a 24V voltage power supply. The power module supplies power to the industrial control all-in-one computer in the EMS, providing a DC12V working power supply, thereby ensuring the stable operation of the power supply equipment.

[0060] In the above embodiments, the low-voltage power supply unit is configured by combining the isolation switch power supply and the power module. Compared with conventional switch-mode power supplies, it has better energy management control performance, i.e., EMC performance. Correspondingly, it has extremely wide voltage input and high isolation voltage characteristics, low ripple noise, and is more convenient for input undervoltage protection, reverse connection protection, output overcurrent, overvoltage, and short-circuit protection. The DC input voltage range is preferably 200 - 1000 VDC.

[0061] Embodiment 5

[0062] In some embodiments of the present invention, the basic structure is set the same as in Embodiment 1, and / or Embodiment 2, and / or Embodiment 3, and / or Embodiment 4. Specifically, to ensure the stable operation of the power supply device, the battery module unit needs to be charged in a timely manner, as Figure 3-5 As shown, the internal power supply interfaces of the movable multi-functional power supply device of the present invention include a DC charging interface XS1 and an AC charging interface XS2. The DC charging interface is connected to the high-voltage box unit, and the AC charging interface is connected to the energy storage inverter. Among them, preferably, the DC charging interface does not include a low-voltage auxiliary power supply.

[0063] In the above embodiments, the AC charging interface XS2 is used to charge the battery module unit internally with alternating current; the DC charging interface XS1 is used to charge the battery module unit internally with direct current quickly. Compared with the existing DC charging pile interface, the DC charging interface XS1 of the present invention does not include a low-voltage auxiliary power supply, that is, there is no low-voltage auxiliary voltage A+ and A-. Thus, with a simplified DC charging interface circuit setting, direct current quick charging is achieved.

[0064] During specific application, during the power supply control process, when it is necessary to charge the battery module unit with direct current, the AC side of the energy storage inverter is disconnected. For example, by disconnecting the second circuit breaker QF2, the AC side of the PCS is in a disconnected state. Then, a non-vehicle-mounted charger is used to connect to the DC charging interface XS1, and the battery module unit is directly charged through the high-voltage box unit, that is, direct current quick charging of each battery pack in the battery module unit is achieved;

[0065] When it is necessary to charge the battery module unit with alternating current, the AC side of the energy storage inverter is in a connected state. For example, by closing the second circuit breaker QF2, the AC side of the PCS is in a connected state. The three-phase alternating current of the mains power from the power grid is connected to the AC charging interface XS2, and the three-phase alternating current of the mains power from the power grid starts to be rectified into direct current by the PCS and then charges the battery module unit, that is, alternating current charging of each battery pack in the battery module unit is achieved.

[0066] Embodiment 6

[0067] In some embodiments of the present utility model, the basic structure is set the same as that of Embodiment 1, and / or Embodiment 2, and / or Embodiment 3, and / or Embodiment 4, and / or Embodiment 5. Specifically, to improve the utilization rate of power supply equipment, as Figure 5 shown, the movable multi-functional power supply equipment of the present utility model further includes a multi-specification voltage and power output interface unit. The multi-specification voltage and power output interface unit includes more than two groups of output interfaces, and each of the output interfaces is connected to the energy storage converter.

[0068] In specific applications, during the power supply control process, when it is necessary to supply power to more than three external electrical equipment, each external electrical equipment is connected through the multi-specification voltage and power output interface unit, and / or the DC charging pile unit, and / or the AC charging pile unit. When the energy storage converter is in the on state, by connecting the energy storage converter in parallel with the multi-specification voltage and power output interface unit connected to the external electrical equipment, and / or the DC charging pile unit, and / or the AC charging pile unit respectively at the same time. After the energy storage converter performs DC inversion on the direct current input from the battery module unit, the obtained three-phase alternating current is input into the multi-specification voltage and power output interface unit, and / or the DC charging pile unit, and / or the AC charging pile unit at the same time. The multi-specification voltage and power output interface unit, and / or the DC charging pile unit, and / or the AC charging pile unit supply power to the external electrical equipment respectively. Thus, it is possible to realize simultaneous power supply to more than three external electrical equipment through more than two groups of output interfaces of the multi-specification voltage and power output interface unit alone, or simultaneous power supply to more than three external electrical equipment through more than two groups of output interfaces of the multi-specification voltage and power output interface unit and the DC charging pile unit together, or simultaneous power supply to more than three external electrical equipment through more than two groups of output interfaces of the multi-specification voltage and power output interface unit and the AC charging pile unit together, or simultaneous power supply to more than four external electrical equipment through more than two groups of output interfaces of the multi-specification voltage and power output interface unit and the DC charging pile unit and the AC charging pile unit together.

[0069] In the above embodiments, in the multi-specification voltage and power output interface unit, each of the output interfaces can output different powers; the multi-specification voltage and power output interface unit preferably includes an AC 380V output interface, i.e., a three-phase alternating current output interface, an AC 220V output interface, i.e., a single-phase alternating current output interface, and a DC 5V output interface; preferably, the currents that the AC 380V output interface can output are 16A and 25A, and the currents that the AC 220V output interface can output are 10A and 16A; preferably, the DC 5V output interface is a USB interface. Thus, compared with the existing conventional single-voltage or single-current output interfaces, the setting of the multi-specification voltage and power output interface unit, with the output of multiple voltages and currents, is conducive to meeting the needs of people's daily electrical equipment. While meeting the charging of pure electric vehicles and hybrid electric vehicles, it can also conveniently supply power to other electrical equipment such as mobile phones, outdoor speakers, and emergency rescue equipment. Compared with the significant increase in fixed charging pile service products, it can also greatly improve the utilization rate of power supply equipment, and correspondingly is conducive to saving space and other resources.

[0070] In the above embodiments, preferably, each of the output interfaces is connected to the energy storage converter through a circuit breaker. More preferably, the AC 380V output interface is controlled for its connection state by the fifth circuit breaker QF5, the AC 220V output interface capable of outputting 16A current is controlled for its connection state by the sixth circuit breaker QF6, and the AC 220V output interface capable of outputting 10A current is controlled for its connection state by the seventh circuit breaker QF7, so that users can conveniently start different output interfaces according to different needs to meet their power consumption requirements. More preferably, the inlets of the three-phase circuit breaker, the fifth circuit breaker QF5, the single-phase circuit breaker, the sixth circuit breaker QF6, and the single-phase circuit breaker, the seventh circuit breaker QF7 are connected in parallel by wires to the outlet of the first circuit breaker QF1 and the inlet of the second circuit breaker QF2; the outlet of the three-phase circuit breaker, the fifth circuit breaker QF5 is connected in parallel by wires to a 25A three-phase interface and a 16A three-phase interface; when in use, the second circuit breaker QF2 and the fifth circuit breaker QF5 are turned on, and the direct current output by the battery module is inverted into alternating current by the PCS and sent to the 25A three-phase interface and the 16A three-phase interface; the outlet of the single-phase circuit breaker, the sixth circuit breaker QF6 is connected in parallel by wires to two 16A single-phase interfaces; when in use, the second circuit breaker QF2 and the sixth circuit breaker QF6 are turned on, and the direct current output by the battery module is inverted into alternating current by the PCS and delivered to the two 16A single-phase interfaces. More preferably, USB interfaces are attached to both of the two 16A single-phase interfaces, and the USB interface can output a voltage and current of 5V and 2A; the outlet of the single-phase circuit breaker, the seventh circuit breaker QF7 is connected in parallel by wires to two 10A single-phase interfaces. When the second circuit breaker QF2 and the seventh circuit breaker QF7 are turned on, the direct current output by the battery module is inverted into alternating current by the PCS and delivered to the above two 10A single-phase interfaces. More preferably, USB interfaces are attached to both of the two 10A single-phase interfaces, and the USB interface can output a voltage and current of 5V and 2A; in specific applications, selection can be made according to the working conditions. Thus, more selectable charging application interfaces are provided for users, and while increasing convenience, the cumbersome operations and resource costs required for the configuration of existing power supply equipment are also effectively saved.

[0071] Embodiment 7

[0072] In some embodiments of the present invention, the basic structure is set the same as that of Embodiment 1, and / or Embodiment 2, and / or Embodiment 3, and / or Embodiment 4, and / or Embodiment 5, and / or Embodiment 6. Specifically, to enhance the stability and reliability of system operation, the movable multifunctional power supply device of the present invention further includes an indicator light unit, as Figure 3 shown, the indicator light unit includes more than two groups of indicator lights, at least including a first indicator light and a second indicator light; wherein, the first indicator light is connected to the mains input end; the second indicator light is connected to the second circuit breaker.

[0073] In the above embodiments, preferably, as Figure 4-5 shown, the indicator light unit includes three groups of indicator lights, namely, the three groups of indicator lights are the first indicator light LA1, the second indicator light LA2, and the third indicator light LA3 respectively; wherein, the first indicator light LA1 is connected to the mains power input terminal; the second indicator light LA2 is connected to the second circuit breaker QF2; the third indicator light LA3 is respectively connected to the first circuit breaker QF1, the second circuit breaker QF2, and the circuit breaker for controlling the access of the external load, wherein the circuit breaker for controlling the access of the external load is such as the third circuit breaker QF3, the fourth circuit breaker QF4, the fifth circuit breaker QF5, the sixth circuit breaker QF6, and the seventh circuit breaker QF7.

[0074] In the above embodiments, the first indicator light is used to indicate the connection of the mains power, the second indicator light is used to indicate that the energy storage converter has been connected, and the third indicator light is used to indicate that the external load access can be started. In specific applications, when the first indicator light LA1 is on, it indicates that the three-phase alternating current of the grid mains power is connected to the power supply device; when the second circuit breaker QF2 is closed and connected, and the second indicator light LA2 is on, it indicates that the side of the PCS connected to the alternating current has been connected to the power supply device; when the first circuit breaker QF1 and / or the second circuit breaker QF2 is closed and connected, and the third indicator light LA3 is on, it indicates that the external load such as an electric vehicle and other electrical equipment can be accessed. Specifically, according to the charging requirements of the connected external load, the circuit breaker for controlling the access of the external load is connected, such as closing and connecting the circuit breaker (QF5, and / or QF6, and / or QF7) of the corresponding output interface, and / or closing and connecting the circuit breaker (QF3) of the DC charging pile unit, and / or closing and connecting the circuit breaker (QF4) of the AC charging pile unit; thus, compared with the subsequent indication that the load has been accessed when the existing indicator light is on, the above setting enables the operator to effectively avoid system operation failures caused by load connection failures by indicating in advance that the load can be accessed, and there is no need to set multiple indicator lights for accessing multiple external loads, thereby effectively saving the circuit cost.

[0075] Embodiment 8

[0076] In some embodiments of the present invention, the basic structure is set the same as that of Embodiment 1, and / or Embodiment 2, and / or Embodiment 3, and / or Embodiment 4, and / or Embodiment 5, and / or Embodiment 6, and / or Embodiment 7. Specifically, to enhance the stable operation of the system, such as Figure 3-6As shown, the high-voltage box unit includes a battery cluster control unit, and also includes a main positive relay K1, a main negative relay K2, a heating relay K3, and also includes a pre-charge resistor R1, a current Hall sensor HR1, a maintenance switch K4, and a fuse FU3; wherein, the main positive relay K1 is respectively connected to the maintenance switch K4, the pre-charge resistor R1, and the BCU; the current Hall sensor HR1 is connected to the BCU; the main negative relay K2 is connected to the BCU; the heating relay K3 is respectively connected to the fuse FU3 and the BCU.

[0077] In the above embodiment, to enhance the guarantee for the system, preferably, as Figure 6 shown, the main positive end of the battery module unit (i.e., Figure 6 the battery main positive shown in Figure 6The total negative terminal of the battery shown is connected to the total negative input terminal of the high-voltage box unit; the total positive input terminal of the high-voltage box unit is connected to one end of the total positive copper busbar, and the other end of the total positive copper busbar is respectively connected to one end of the maintenance switch K4 and the input terminal of the black start switch QF8; the other end of the maintenance switch K4 is respectively connected to one leg of the main contact of the total positive relay K1 and one end of the pre-charge resistor R1, and the other leg of the main contact of the total positive relay K1 and the other end of the pre-charge resistor R1 are both connected to the total positive output terminal of the high-voltage box unit. Thus, the pre-charge resistor R1 serves as a shunt branch at the moment when the main contact of the total positive relay K1 is closed, and can prevent the main contact from being adhered due to the instantaneous large current. Both ends of the pre-charge resistor R1 and the two legs of the main contact of the total positive relay K1 are respectively connected to the wiring terminals J1-1 and J1-5 of the BCU. Both ends of the coil of the total positive relay K1 are respectively connected to the wiring terminals J2-32 and J3-9 of the BCU. The current Hall sensor HR1 is used to collect the total current output by each battery of the battery module unit for the BCU to calculate power, over-current protection, etc. The current Hall sensor HR1 is sleeved on the total positive copper busbar from the maintenance switch K4 to one end of the main contact of the total positive relay K1. The Hall H signal terminal and the Hall L signal terminal of the current Hall sensor HR1 are respectively connected to the wiring terminals J2-24 and J2-7 of the BCU, and the power supply pins 5V and GND of the current Hall sensor HR1 are respectively connected to the wiring terminals J2-8 and J2-25 of the BCU. The total negative input terminal of the high-voltage box unit is connected to one end of the total negative copper busbar, and the other end of the total negative copper busbar is respectively connected to one leg of the main contact of the total negative relay K2, the input terminal of the black start switch QF8, J1-3 / J1-7 of the BCU, and the heating negative terminal J3-6 (for connecting the wire to the negative terminal of the battery module heating control terminal). The other leg of the main contact of the total negative relay K2 is connected to the total negative output terminal of the high-voltage box unit. Both ends of the coil of the total negative relay K2 are respectively connected to the wiring terminals J2-32 and J3-18 of the BCU. One leg of the main contact of the heating relay K3 is respectively connected to the total positive output terminal of the high-voltage box unit and the wiring terminal J1-5 of the BCU, and the other leg of the main contact of the heating relay K3 is connected to one end of the heating fuse FU3, and the other end of the heating fuse FU3 is connected to the heating positive terminal J2-32. Both ends of the coil of the heating relay K3 are respectively connected to the wiring terminals J2-32 and J3-6 of the BCU.

[0078] In the above embodiment, for the convenience of the regulation and transfer of the power supply device, preferably, as Figure 6As shown, the battery module unit includes two sets of battery modules connected in series, namely battery module A and battery module B. Preferably, the positive electrode of the internal battery pack of battery module A is connected to one end of fuse FU1, and the other end of fuse FU1 is connected to the total positive incoming line terminal of the high-voltage box unit; the negative electrode of the internal battery pack of battery module A is connected to one end of fuse FU2 inside battery module B, and the other end of fuse FU2 is connected to the positive electrode of the internal battery pack of battery module B, and the negative electrode of the internal battery pack of battery module B is connected to the total negative incoming line terminal of the high-voltage box unit. The CAN communication and 24V power supply terminals of battery module A and the CAN communication and 24V power supply terminals of battery module B respectively lead out wires for corresponding parallel connection and then connected to the BCU; specifically, the CAN communication and DC24V power supply interface terminals of battery module A and battery module B lead out wires for parallel connection to form five wires CANH, CANL, SG, 24V+, 24V- which are respectively connected to the wiring terminals J2-27, J2-11, the housing ground, J2-1, J2-17 of the BCU; thus, the parallel-connected CAN is used for communication between each BMU and the BCU; the voltage of the DC24V power supply interface comes from the output of the BCU and serves as the working power supply for each BMU.

[0079] In the above embodiment, to enhance the guarantee of the efficient and stable operation of the battery module unit, the heating device is installed inside the housing of the battery module and is arranged close to the bottom, that is, the heating devices inside each group of battery modules are installed inside the corresponding battery module housing and close to the inner bottom of the housing. The heating device is preferably a polyimide film (i.e., PI heating film). In specific applications, the BMU will send the real-time collected and monitored battery cell temperature information to the BCU through CAN. When the temperature is less than or equal to the lowest limit of the set working temperature, the BCU outputs a low-level instruction to the coil of the heating relay K3 of the high-voltage box unit. When the coil of the heating relay K3 is energized and turned on, the heating device provided in the corresponding battery module is energized and turned on to start heating; when the temperature reaches the set working temperature such as 25°C, the BCU outputs a high-level instruction to the coil of the heating relay K3, and the coil of the heating relay K3 loses power and disconnects, and the heating device provided in the corresponding battery module disconnects and the heating ends.

[0080] In the above embodiments, to ensure the stable operation and service life of the battery module unit, preferably, a cooling unit interface terminal is provided on the housing of each group of the battery modules. The cooling unit interface terminal is connected to the cooling device and the BCU, that is, the cooling devices provided in each group of battery modules are connected to the BCU through the cooling unit interface terminals on their housings. In specific applications, the BMU sends the monitored battery cell temperature information to the BCU through the CAN in real time. When the temperature of the battery module is greater than or equal to the set maximum limit of the working temperature, the BCU outputs a refrigeration start command to the cooling device provided in the corresponding battery module, and the cooling device provided in the corresponding battery module is turned on, and the cooling unit in the cooling device starts to refrigerate. When the temperature reaches the set working temperature range, such as 25 °C, the BCU outputs a refrigeration end command to the cooling device provided in the corresponding battery module, and the cooling device provided in the corresponding battery module is turned off, ending the refrigeration.

[0081] In the above embodiments, to further ensure the stable operation of the system, a vehicle communication interface is also provided, and the vehicle communication interface is connected to the BCU. Preferably, as Figure 6-9 shown, the vehicle communication interface pins A (24V+), B (24V-) are respectively connected to the wiring terminals J2-32 and J2-16 of the BCU; the vehicle communication interface pins C (vehicle CANH), D (vehicle CANL), E (CAN shield) are respectively connected to the wiring terminals J2-12, J2-29 and the housing end of the BCU; the vehicle communication interface pins F (fast charge CANH), G (fast charge CANL) are respectively connected to the wiring terminals J2-9 and J2-10 of the BCU; the vehicle communication interface pin N (non-vehicle charger charging connection confirmation, i.e., CC2) is connected to J2-5 of the BCU; the vehicle communication interface pin P (charging wake-up) is connected to the wiring terminal J2-15 of the BCU; the vehicle communication interface pin H (cooling control negative terminal of the cooling device of the battery module) is connected to the wiring terminal J2-16 of the BCU, and the pin V (cooling control positive terminal of the cooling device of the battery module) is connected to the wiring terminal J3-10 of the BCU.

[0082] In the above embodiments, to further ensure stable DC charging of the battery module unit, such as Figure 3-9As shown, preferably, the DC charging interface XS1 is respectively connected to the high-voltage box unit, the vehicle communication interface, and the housing of the movable multi-functional power supply device through wires. Among them, the first pin (DC+) of the DC charging interface XS1 is connected to the total positive output terminal of the high-voltage box unit, the second pin (DC-) is connected to the total negative output terminal of the high-voltage box unit, the third pin (PE) is connected to the housing of the movable multi-functional power supply device, the fourth pin (S+) is connected to the F pin (fast charging CANH) of the vehicle communication interface, and the back pin of the fifth pin (S-) is connected to the G pin (fast charging CANL) of the vehicle communication interface for CAN communication between the off-vehicle charger and the BCU; the back pin of the seventh pin (CC2) of the DC charging interface XS1 is connected to the N pin of the vehicle communication interface for charging connection confirmation between the off-vehicle charger and the BCU. In the specific application process, when charging the battery module with DC power, first turn on the black start switch QF8, and the isolation switch power supply converts the high voltage of the battery module into 24V voltage. The 24V voltage provides power guarantee for the operation of the BCU, the BMU inside the battery module, the industrial gateway of the EMS, the industrial Ethernet switch, and the industrial control all-in-one computer; after the industrial control all-in-one computer starts, under its control, the display screen lights up, the monitoring is ready, the communication between the monitoring interface EMS and the BCU, and between the BCU and the BMU is displayed normally, and the "close" button on the monitoring interface is in the closed state; insert the DC charging gun of the off-vehicle charger into the DC charging interface XS1, the DC charging gun will communicate with the BCU to complete the charging connection confirmation, and the off-vehicle charger starts to charge the battery module unit of the power supply device. The display screen of the industrial control all-in-one computer real-time displays the charging status. When the charging is completed, turn off the power of the off-vehicle charger, remove the DC charging gun of the off-vehicle charger from the DC charging interface XS1, and click the "stop" button on the monitoring interface of the industrial control all-in-one computer to end the DC charging of the battery module.

[0083] In the above embodiment, to further ensure stable AC charging of the battery module unit, such as Figure 3-5As shown, preferably, the pins on the back of the AC charging interface XS2 are connected to the incoming line terminal of the mains input switch, i.e., the first circuit breaker QF1, through wires. The first circuit breaker QF1 is a three-phase circuit breaker. The outgoing line terminal of the first circuit breaker QF1 is connected in parallel to the incoming line terminals of the second circuit breaker QF2, the third circuit breaker QF3, the fourth circuit breaker QF4, the fifth circuit breaker QF5, the sixth circuit breaker QF6, and the seventh circuit breaker QF7 through wires. The outgoing line terminal of the second circuit breaker QF2 is connected to the AC side terminal of the PCS. In the specific application process, when charging the battery module unit with AC power, first close the PCS control switch SB1 of the movable multifunctional power supply device to start the PCS. Then, turn on the black start switch QF8, and the isolation switch power supply converts the high voltage of the battery module into 24V voltage, which provides power guarantee for the operation of the BCU, the BMU of the battery module, the industrial gateway of the EMS system, the industrial Ethernet switch, and the industrial control all-in-one computer. After the industrial control all-in-one computer is started, under its control, the display screen lights up, the monitoring is ready, and the communication indicator lights of the monitoring interfaces EMS and BCU, PCS and EMS, and PCS and BCU show normal. The "Close" button on the monitoring interface is in the closed state. Connect the three-phase AC power supply of the mains to the AC charging interface XS2, and the first indicator light LA1 lights up. Then, turn on the first circuit breaker QF1, and the third indicator light LA3 lights up. Then, turn on the second circuit breaker QF2, and the second indicator light LA2 lights up. At this time, the PCS is successfully connected to the mains. Then, enter the charging power value in the "Grid-connected Charge and Discharge Power Setting" box on the monitoring interface of the industrial control all-in-one computer, click the "Grid-connected Mode" button, and finally click the "Start" button. Then, the three-phase AC power supply from the grid starts to charge the battery module after being rectified by the PCS. After the charging is completed, press the "Stop" button on the monitoring interface of the industrial control all-in-one computer, remove the AC charging gun from the AC charging interface XS2, the first indicator light LA1 goes out, disconnect the second circuit breaker QF2 and the first circuit breaker QF1, the second indicator light LA2 goes out, and the third indicator light LA3 goes out. Then, the AC charging of the battery module ends.

[0084] In the above embodiment, to ensure the stable operation of the weak power supply unit for the internal electrical components of the system, preferably, as Figure 3-6As shown in the figure, the incoming line terminals of the black start switch QF8 are respectively connected to the total positive incoming line terminal and the total negative incoming line terminal of the high-voltage box unit, that is, the total positive terminal and the total negative terminal of the battery module, through wires. The outgoing line terminal of the black start switch QF8 is connected to the input voltage terminal of the disconnector power supply. The output voltage terminals 24V+ and 24V- of the disconnector power supply are respectively connected to the terminal J2-32 and J2-16 of the BCU, the V1+ and V1- terminals of the industrial Ethernet switch of the EMS, the V+ and V- terminals of the industrial gateway of the EMS, and the V2+ and V2- terminals of the input end of the DC12V power module through wires, so as to facilitate the disconnector power supply to provide working power for the BCU, the industrial Ethernet switch, the industrial gateway, and the 12V power module respectively. The 12V+ and 12V- terminals of the output end of the DC12V power module are connected to the power supply terminal of the industrial control computer of the EMS through wires, so as to provide 12V working power for the industrial control computer.

[0085] In the above embodiment, to enhance the stability of the operation of the power supply equipment, as Figure 3-5 shown, preferably, the AC-side operating voltage range of the energy storage converter (PCS) is 380V - 400V, and the DC-side operating voltage range is 150 - 750V. The AC-side terminals L1-1, L2-1, L3-1, and N-1 of the energy storage converter (PCS) are respectively connected to the outgoing line terminals of the second circuit breaker QF2, so as to ensure that the AC side of the energy storage converter (PCS) is respectively connected to the DC charging pile unit, the AC charging pile unit, and the multi-specification voltage and power output interface unit. The DC-side terminals DC+ and DC- of the energy storage converter (PCS) are respectively connected to the total positive outgoing line terminal and the total negative outgoing line terminal of the high-voltage box unit through wires, so as to ensure that the DC side of the energy storage converter (PCS) is connected to the high-voltage box unit. The Ethernet port, that is, the Ethernet port of the energy storage converter (PCS), is connected to port 2 of the industrial Ethernet switch of the EMS through a category 5 twisted pair, so as to ensure stable two-way network communication between the PCS and the EMS. The R-IN+ terminal and the R-IN- terminal of the energy storage converter (PCS) are connected to the PCS control switch SB1 through wires, so as to control the start and stop of the operation of the PCS through the PCS control switch.

[0086] In the above embodiment, to enhance the operation monitoring of the power supply equipment, preferably, as Figure 3-9 shown, in the energy management system unit, the CANH terminal and the CANL terminal of the CAN communication bus interface of the industrial gateway are respectively connected to the pin C and pin D of the vehicle communication interface through CAN twisted pairs. The Ethernet port, that is, the Ethernet port of the industrial gateway, is connected to port 1 of the industrial Ethernet switch through a category 5 twisted pair, and port 3 of the industrial Ethernet switch is connected to the Ethernet port of the industrial control computer through a category 5 twisted pair.

[0087] In the above embodiments, to enhance the guarantee of the operation stability of the indicator light unit, preferably, as Figure 4-5 shown, the first indicator light LA1 is connected to the A end and the N end of the incoming line end of the first circuit breaker QF1 through a wire; the second indicator light LA2 is connected to the L1-1 end and the N-1 end of the outgoing line end of the second circuit breaker QF2 through a wire; the third indicator light LA3 is connected in parallel to the L1 end and the N end of the outgoing line end of the first circuit breaker QF1, the incoming line end of the second circuit breaker QF2, the incoming line end of the third circuit breaker QF3, the incoming line end of the fourth circuit breaker QF4, the incoming line end of the fifth circuit breaker QF5, the incoming line end of the sixth circuit breaker QF6, and the incoming line end of the seventh circuit breaker QF7 through a wire; thus, an effective and stable indication of the operation of the power supply equipment is achieved.

[0088] Embodiment 9

[0089] In some embodiments of the present utility model, the basic structure is set the same as that of Embodiment 1, and / or Embodiment 2, and / or Embodiment 3, and / or Embodiment 4, and / or Embodiment 5, and / or Embodiment 6, and / or Embodiment 7, and / or Embodiment 8. Specifically, for the convenience of users to monitor the charging situation of their electrical equipment, the movable multi-functional power supply device further includes an Internet of Things communication device (not shown in the figure), and the Internet of Things communication device is arranged in the DC charging pile unit and / or the AC charging pile unit.

[0090] In the above embodiments, preferably, the Internet of Things communication device is a 3G, and / or 4G, and / or 5G communication device. In specific applications, charging data, electricity charges, and other information generated by the DC charging pile unit or the AC charging pile unit will reach the charging Internet of Things cloud platform through the Internet of Things communication device. Charging users such as electric vehicles can query information such as the charged amount, charging duration, and actual payment amount through the mobile phone APP.

[0091] In the above embodiments, to more accurately monitor the external power supply information of the movable multi-functional power supply device, preferably, the Internet of Things communication device is separately arranged at each output interface of the DC charging pile unit, the AC charging pile unit, and the multi-specification voltage and power output interface unit. Thus, charging data, electricity charges, and other information generated after each external load is connected will reach the charging Internet of Things cloud platform or other relevant real-time statistical devices for electricity consumption information through the Internet of Things communication device. Charging users corresponding to the relevant external loads can query information such as the charged amount, charging duration, and actual payment amount through the mobile phone APP.

[0092] Application Example

[0093] To further illustrate the application function effects of the movable multi-functional power supply device of the present utility model, more specific application demonstrations are provided, but the application of the present utility model is not limited thereto.

[0094] Taking the application of a 60 kWh mobile multi-functional power supply device as an example, it can be charged directly with a non-vehicle-mounted DC charger or charged alternately with mains power. When using the 60 kWh mobile multi-functional power supply device to charge an electrical device, it can charge a pure electric vehicle or supply power to other electrical appliances. Moreover, when supplying power externally, it can charge directly or alternately as needed, and can also supply power to different types of electrical devices through multi-specification voltage and power output interfaces. The specific application process is as follows:

[0095] When charging it directly with a non-vehicle-mounted DC charger, taking the example of using a 7 kW non-vehicle-mounted DC charger to charge the 60 kWh mobile multi-functional power supply device: First, close the black start switch QF8 of the mobile multi-functional power supply device to connect the weak power supply unit and ensure the operation of the BCU, BMU, EMS, etc. After the industrial control computer of the EMS starts, under its control, the display screen lights up and the monitoring is ready. In the monitoring interface of the industrial control computer, the green lights indicating the communication between the BMU and the BCU and the communication between the BCU and the EMS are on, indicating that all communications are normal. The "closed" key on the monitoring interface of the industrial control computer shows the closed state. Turn on the power of the 7 kW non-vehicle-mounted DC charger and insert the DC charging gun of the 7 kW non-vehicle-mounted DC charger into the DC charging interface of the energy station. The BCU communicates with the DC charging gun of the 7 kW non-vehicle-mounted DC charger to complete the CC2 charging connection confirmation. The DC charging gun is locked and the charging preparation is completed. Then, click "off-grid mode" in the monitoring interface, and the off-grid status indicator light comes on, and the charging starts. The industrial control computer display screen shows the charging status in real time, and it can be observed that the value of the battery power is increasing. When the battery is fully charged, the charging ends. Then press the "stop" key on the monitoring interface, the DC charging gun is unlocked, and the DC charging gun of the 7 kW non-vehicle-mounted DC charger is removed, and the direct current charging of the 60 kWh mobile multi-functional power supply device is completed.

[0096] When using the commercial power supply to charge the mobile multi-functional power supply device for AC charging, taking the example of charging a 60 kWh mobile multi-functional power supply device with 380V three-phase commercial AC power: First, close the PCS control switch SB1 of the mobile multi-functional power supply device to start the PCS, and close the black start switch QF8 of the mobile multi-functional power supply device to connect the weak power supply unit to ensure the operation of BCU, BMU, EMS, etc. After the industrial control computer of the EMS starts, under its control, the display screen lights up, the monitoring is ready, and the communications between the monitoring interfaces of EMS and BCU, PCS and EMS, PCS and BCU, and BCU and BMU are displayed normally. The "Closed" button on the industrial control computer monitoring interface shows the closed state; close the first circuit breaker QF1 and the second circuit breaker QF2; then, click the "Grid-connected Mode" button on the monitoring interface and enter the charging power in the "Grid-connected Charge and Discharge Power Setting" box; next, connect the 380V three-phase commercial AC power to the AC charging interface, and the first indicator light LA1 lights up, the second indicator light LA2 lights up, and the third indicator light LA3 lights up; then, click the "Start" button on the monitoring interface, and the charging starts. The industrial control computer display screen displays the charging status in real time, and it can be observed that the value of the battery power is rising. When the battery power reaches the full scale, press the "Stop" button on the monitoring interface, and the charging ends. Disconnect the connection of the AC charging interface, and the AC charging of the 60 kWh mobile multi-functional power supply device is completed.

[0097] When using a 60 kWh mobile multi-functional power supply device to charge an electrical device with direct current, taking the direct current charging of the Leapmotor T03 pure electric vehicle as an example: First, close the PCS control switch SB1 of the mobile multi-functional power supply device to start the PCS, then close the black start switch QF8 to connect the weak current power supply unit to ensure the operation of the BCU, BMU, EMS, etc. After the industrial control computer of the EMS starts, under its control, the display screen lights up, the monitoring is ready, and the communications between the monitoring interface EMS and BCU, PCS and EMS, PCS and BCU, and BCU and BMU are displayed normally. The "Closed" button on the industrial control computer monitoring interface shows the closed state; close the second circuit breaker QF2. The lighting of the second indicator LA2 indicates that the PCS is connected to the input end of the DC charging pile, and the lighting of the third indicator LA3 indicates that an external load can be connected; then close the third circuit breaker QF3. Then, click the "Off-grid Mode" button on the monitoring interface to start the DC charging pile unit; then insert the DC charging gun of the DC charging pile unit into the fast charging port of the Leapmotor T03 electric vehicle. The DC gun is locked. After the DC charging pile unit and the BMS of the electric vehicle communicate and confirm, click the "Auto Full Charge" button on the screen of the DC charging pile unit to start charging the Leapmotor T03 electric vehicle. During this charging process, the DC voltage output by the battery module in the mobile multi-functional power supply device is inverted into 380 V alternating current by the PCS, and then transmitted to the DC charging pile unit, and the DC charging pile unit then charges the Leapmotor T03 electric vehicle; after the charging is completed, remove the DC charging gun from the fast charging port of the Leapmotor T03 electric vehicle, disconnect the third circuit breaker QF3 and the second circuit breaker QF2, and the direct current charging of the Leapmotor T03 electric vehicle ends.

[0098] When using a 60 kWh movable multi-functional power supply device to charge an electrical device with alternating current, taking the example of charging a Leapmotor T03 pure electric vehicle with alternating current: Close the PCS control switch SB1 of the movable multi-functional power supply device, start the PCS, close the black start switch QF8, connect the weak current power supply unit to ensure the operation of the BCU, BMU, EMS, etc. After the industrial control computer of the EMS starts, under its control, the display screen lights up, the monitoring is ready, and the communications between the monitoring interface EMS and BCU, PCS and EMS, PCS and BCU, and BCU and BMU are displayed normally. The "Close" button on the industrial control computer monitoring interface shows a closed state; Close the second circuit breaker QF2. The lighting of the second indicator LA2 indicates that the PCS is connected to the input end of the AC charging pile, and the lighting of the third indicator LA3 indicates that an external load can be connected; Then close the fourth circuit breaker QF4 to start the AC charging pile unit; Then, click the "Off-grid Mode" button on the monitoring interface, and then insert the AC charging gun of the AC charging pile unit into the slow charging port of the Leapmotor T03 electric vehicle. The AC gun is locked. After the communication between the Leapmotor T03 electric vehicle and the movable multi-functional power supply device is confirmed, the movable multi-functional power supply device starts to charge the Leapmotor T03 electric vehicle. During this charging process, the DC voltage output by the battery module in the movable multi-functional power supply device is inverted into 380V alternating current through the PCS, and then converted into single-phase 220V voltage and transmitted to the AC charging pile unit, and the AC charging pile unit then charges the Leapmotor T03 electric vehicle; After the charging is completed, remove the AC charging gun from the slow charging port of the Leapmotor T03 electric vehicle, disconnect the fourth circuit breaker QF4 and the second circuit breaker QF2, and the AC charging of the Leapmotor T03 electric vehicle ends.

[0099] When some electrical appliances are not suitable for charging with a DC charging pile unit or an AC charging pile unit, they can be charged using other specified voltage and power output interfaces. Taking the charging of an argon arc welder, an outdoor oven, and an outdoor speaker as examples: Close the PCS control switch SB1 of the mobile multi-functional power supply device to start the PCS. Close the black start switch QF8 to connect the weak current power supply unit and ensure the operation of the BCU, BMU, EMS, etc. After the industrial control computer of the EMS is started, under its control, the display screen lights up, and the monitoring is ready. The communication displays of the monitoring interfaces EMS and BCU, PCS and EMS, PCS and BCU, and BCU and BMU are normal. The "Close" button on the industrial control computer monitoring interface shows a closed state. Close the second circuit breaker QF2. The lighting of the second indicator LA2 indicates that the PCS is connected to the input terminal of the corresponding other specified voltage and power output interface. Close the circuit breakers QF5, QF6, and QF7. Connect a portable argon arc welder to the 25A three-phase AC interface of the AC 380V output interface, and the argon arc welder gets powered on and works. Connect an outdoor oven to the 16A single-phase AC interface of the AC 220V output interface, and the oven gets powered on and works. Connect an outdoor speaker to the 10A single-phase AC interface of the AC 220V output interface, and the speaker gets powered on and works. After the above electrical appliances are used, just disconnect QF5, QF6, and QF7 respectively; other electrical appliances can also be connected simultaneously or separately according to needs.

[0100] Through the application of the present utility model, it can be seen that the mobile multi-functional power supply device of the present utility model, with its innovative structural design, integrates DC charging and discharging and energy storage, as well as AC charging and discharging and energy storage. It can meet the charging needs of different types and specifications of electrical equipment such as new energy vehicles under different working conditions, and has a high degree of mobility and flexibility. It can flexibly charge external electrical equipment and the system itself internally. The system operates stably and reliably, and the operation is simple and fast. It is conducive to overall movement according to the needs of different application scenarios and electrical equipment. Compared with the existing fixed charging piles, it greatly saves the occupied space and economic costs, can efficiently meet the charging needs of users of electric vehicles, etc. in transit, in remote suburbs, or other places without fixed charging piles, effectively alleviates the charging anxiety of relevant users, and can serve as a good supplement to the existing charging pile market, especially suitable for popularization and use in areas with requirements for flexible power supply.

[0101] The present utility model is not limited to the above embodiments. Any obvious improvement or change made by those skilled in the art to the above embodiments will not exceed the concept of the present utility model and the protection scope of the appended claims.

Claims

1. A mobile multifunctional power supply device, comprising an external power supply interface, an internal charging interface and a power supply circuit, wherein the external power supply interface and the internal charging interface are respectively connected to the power supply circuit, wherein: The power supply circuit includes a battery module unit, a high-voltage box unit, a weak current power supply unit, an energy management system unit and an energy storage converter, wherein: The battery module unit is connected to the high-voltage box unit, and a battery module is arranged in the battery module unit; The high-voltage box unit is respectively connected to the energy management system unit, the energy storage converter, and the weak current power supply unit; The energy storage converter is respectively connected to the external power supply interface, the high voltage box unit, and the energy management system unit; The energy management system unit is connected to the high-voltage box unit, the energy storage converter, and the weak current power supply unit respectively; The weak current power supply unit is connected to the battery module unit, the high voltage box unit, and the energy management system unit respectively; The internal charging interface includes an AC charging interface and a DC charging interface, the DC charging interface is connected to the high-voltage box unit, and the AC charging interface is connected to the energy storage converter; The external power supply interface includes a DC charging pile unit and an AC charging pile unit, and the DC charging pile unit and the AC charging pile unit are respectively connected to the energy storage converter.

2. The mobile multifunctional power supply device according to claim 1, characterized in that: The battery module unit includes more than two groups of battery modules, each group of the battery modules is provided with a battery pack, and a battery management unit, a fuse, a heating device, and a cooling device respectively connected to the battery pack; The battery modules of each group are connected in series; The high voltage box unit includes a battery cluster control unit; The battery management units arranged in each group of the battery modules are connected to the battery cluster control unit; The battery cluster control unit is connected to the energy management system unit and the energy storage converter respectively.

3. The mobile multifunctional power supply device according to claim 2, characterized in that: The high-voltage box unit further includes a total positive relay, a total negative relay, and a heating relay, wherein the total positive relay, the total negative relay, and the heating relay are respectively connected to the battery cluster control unit; The heating relay is connected in series with a heating device provided in each of the battery modules.

4. The mobile multifunctional power supply device according to claim 2, characterized in that: The heating device is arranged in the shell of the battery module near the bottom of the shell, and the heating device is a polyimide film.

5. The mobile multifunctional power supply device according to claim 2, characterized in that: A cooling unit interface terminal is provided on the housing of each group of the battery modules, and the cooling unit interface terminal is connected to the cooling device.

6. The mobile multifunctional power supply device according to claim 1, characterized in that: The weak current power supply unit includes a black start switch, an isolating switch power supply and a power supply module which are connected in sequence. The black start switch is connected to the high voltage box unit. The power supply module is connected to the energy management system unit.

7. The mobile multifunctional power supply device according to claim 6, characterized in that: The isolating switch power supply is a DC24V power supply, and the power supply module is a DC12V power supply.

8. The mobile multifunctional power supply device according to claim 1, characterized in that: The energy management system unit includes an industrial gateway, an industrial Ethernet switch and an industrial control integrated machine which are connected in sequence; The industrial gateway is connected to the high-voltage box unit; The industrial Ethernet switch is connected to the energy storage converter; The industrial gateway, the industrial Ethernet switch, and the industrial control all-in-one machine are respectively connected to the weak current power supply unit.

9. The mobile multifunctional power supply device according to claim 1, characterized in that: The mobile multifunctional power supply device also includes an indicator light unit, which includes more than two groups of indicator lights, including at least a first indicator light and a second indicator light; wherein the first indicator light is connected to the mains input terminal; and the second indicator light is connected to the circuit breaker.

10. The mobile multifunctional power supply device according to any one of claims 1 to 9, characterized in that: The mobile multifunctional power supply device also includes an Internet of Things network communication device, and the Internet of Things network communication device is arranged in the DC charging pile unit and / or the AC charging pile unit.

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