Electrical structure of multifunctional battery energy storage charging-power supply vehicle device

Abstract

The utility model relates to the technical field of power supply, and particularly discloses an electrical structure of a multifunctional battery energy storage charging-power supply vehicle device, which comprises an isolation transformer, a power supply circuit, a charging circuit, and a charging pile module and a battery pack module which are connected with the charging circuit, the charging circuit is used for supplying power to the charging circuit when the battery pack module is charged; the charging circuit is used for taking power from the commercial power grid when the battery pack module is charged, transmitting electric energy to the battery pack module and transmitting the electric energy to the charging pile module and an external load when the battery pack module is discharged. According to the utility model, a plurality of electric vehicles can be charged at the same time, the external load can be supplied with power, the power supply radius can be expanded according to requirements, and the electric quantities of commercial power charging, external load power supply, charging pile power utilization and battery energy storage charging and discharging can be respectively and independently metered, so that the energy consumption management can be better carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field, concretely is a kind of electrical structure of multifunctional battery energy storage charging-power supply vehicle device. BACKGROUND

[0002] During holiday, the queuing congestion phenomenon of electric vehicle in highway service area charging station has become a big trouble of car owners.With the increase of new energy vehicle ownership, every holiday, travel volume surges, and the charging station of highway service area faces great test.In peak period, charging pile is occupied by electric vehicle, and the vehicle waiting for charging is in long line, and some car owners even need to wait for 2,3 hours to charge electricity.This situation not only increases the anxiety of car owner, but also intensifies the traffic pressure during holiday.Some car owners even need to queue for 3 hours in highway service area, and the actual charging time is only 1 hour, which seriously affects travel efficiency.This "charging anxiety" not only affects the travel experience of car owner, but also exposes the deficiency of new energy vehicle charging facility in holiday peak period.

[0003] Therefore, multifunctional battery energy storage charging-power supply vehicle device can be well used, greatly alleviate the charging problem of electric vehicle during holiday, and also can provide emergency power for surrounding electric equipment, increase the reliability of power supply.But the safety of existing external power supply is poor, and the power supply radius range is relatively small, and the intelligent degree of operation is low. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of electrical structure of multifunctional battery energy storage charging-power supply vehicle device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of electrical structure of multifunctional battery energy storage charging-power supply vehicle device, including isolation transformer, power supply circuit, charging circuit and the charging pile module and battery pack module connected with charging circuit, wherein:

[0007] Power supply circuit, connect with commercial power grid, for when battery pack module charges, power supply circuit is used to power supply circuit to charging circuit;

[0008] Charging circuit, for when battery pack module charges, charging circuit is used to commercial power grid and transmits the electric energy to battery pack module and when battery pack module discharges, charging circuit is used to charging pile module and external load with electric energy transmission.

[0009] As a further scheme of the utility model: it further includes energy management system, and energy management system is used to control power supply circuit to power supply circuit, charging circuit to battery pack module and battery pack module to charging pile module.

[0010] As a further scheme of the utility model: the power supply circuit is connected to one side of the isolation transformer, the power supply circuit includes phase line A, phase line B, phase line C and ground wire PE, and a total circuit breaker, a first electric meter and an alternating current power supply indication and surge protection module are arranged between the power supply circuit and the isolation transformer, the total circuit breaker is an alternating current mains line total switch, the first electric meter is used for measuring the charging capacity of the mains power grid, and the charging capacity is the power supply capacity of the power supply circuit to the charging circuit.

[0011] As a further scheme of the utility model: the power supply circuit is connected to one side of the isolation transformer, the power supply circuit includes phase line A, phase line B, phase line C and ground wire PE, and a total circuit breaker, a first electric meter and an alternating current power supply indication and surge protection module are arranged between the power supply circuit and the isolation transformer, the total circuit breaker is an alternating current mains line total switch, the first electric meter is used for measuring the charging capacity of the mains power grid, and the charging capacity is the power supply capacity of the power supply circuit to the charging circuit.

[0012] As a further scheme of the utility model: the charging circuit is connected to the other side of the isolation transformer, and the charging circuit includes A-phase distribution busbar, B-phase distribution busbar, C-phase distribution busbar, zero line busbar and ground wire busbar; the charging pile module includes a first charging pile and a second charging pile, and the battery pack module includes a first battery pack and a second battery pack.

[0013] As a further scheme of the utility model: the first charging pile is connected with the A-phase distribution busbar, the B-phase distribution busbar, the C-phase distribution busbar, the zero line busbar and the ground wire busbar, a first charging pile switch and a third electric meter are arranged in series on the first charging pile; the second charging pile is connected with the A-phase distribution busbar, the B-phase distribution busbar, the C-phase distribution busbar, the zero line busbar and the ground wire busbar, and a second charging pile switch and a fourth electric meter are arranged in series on the second charging pile.

[0014] As a further scheme of the utility model: the first battery pack is connected with the A-phase distribution busbar, the B-phase distribution busbar, the C-phase distribution busbar, the zero line busbar and the ground wire busbar, a first energy storage converter switch, a fifth electric meter and a first energy storage converter are arranged in series on the first battery pack; the second battery pack is connected with the A-phase distribution busbar, the B-phase distribution busbar, the C-phase distribution busbar, the zero line busbar and the ground wire busbar, and a second energy storage converter switch, a sixth electric meter and a second energy storage converter are arranged in series on the second battery pack.

[0015] As a further scheme of the utility model: the charging circuit is connected with a second cable winch, the second cable winch is provided with a second circuit breaker and a second electric meter, the second circuit breaker is an external load power supply switch, and the second electric meter is an external load power supply metering electric meter.

[0016] As a further scheme of the utility model: the charging circuit is sequentially connected with parallel and off-grid switching module, capstan control module, air conditioning module, dynamic ring equipment, auxiliary power module, fire-fighting module and maintenance socket, the parallel and off-grid switching module is used for automatic parallel and off-grid switching;The capstan control module and the air conditioning module are connected with A phase distribution bus, B phase distribution bus, C phase distribution bus, zero line bus and ground wire bus;The dynamic ring equipment is connected with A phase distribution bus, zero line bus and ground wire bus;The auxiliary power module is connected with B phase distribution bus, zero line bus and ground wire bus;The fire-fighting module is connected with C phase distribution bus, zero line bus and ground wire bus;The maintenance socket is connected with B phase distribution bus, zero line bus and ground wire bus.

[0017] As a further scheme of the utility model: the capstan control module is equipped with capstan control box switch, and the capstan control box switch is connected with A phase distribution bus, B phase distribution bus and C phase distribution bus;The air conditioning module is equipped with air conditioning switch, and the air conditioning switch is connected with A phase distribution bus, B phase distribution bus and C phase distribution bus;The dynamic ring equipment is equipped with dynamic ring equipment switch, and the dynamic ring equipment switch is connected with A phase distribution bus and zero line bus;The auxiliary power module is equipped with auxiliary power switch, and the auxiliary power switch is connected with B phase distribution bus and zero line bus;The fire-fighting module is equipped with fire-fighting switch, and the fire-fighting switch is connected with C phase distribution bus and zero line bus;The maintenance socket is equipped with maintenance socket switch, and the maintenance socket switch is connected with B phase distribution bus and zero line bus.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1, the utility model discloses between commercial power and the device increase a set of electric cable's electric capstan, so that the device can be smoothly connected with the power grid, and the length of the cable can be freely retracted according to the application scene demand, and the capstan is electric, and it is convenient to operate, and a set of electric cable's electric capstan is increased between the external load and the device, so that the device can be smoothly connected with the external load (when not being connected with the power grid, the power supply of the electric capstan is provided by the battery module), and the length of the cable can be freely retracted according to the application scene demand, and the capstan is electric, and it is convenient to operate.

[0020] 2, the utility model increases isolation transformer and static switching switch, and the isolation transformer can play electrical isolation, improve the safety of power supply, and increases parallel and off-grid switching controller behind the isolation transformer, when off-grid is converted into grid operating condition, can automatically detect grid voltage, phase sequence, frequency, confirms in normal range after automatically grid-connected success, otherwise does not grid-connect.In grid operating condition, when grid voltage, phase sequence, frequency exceed the threshold value of stipulation, automatically cut off, avoid damaging each electrical component in the device.

[0021] 3、The utility model discloses a multifunctional battery energy storage charging and power supply vehicle device, which can simultaneously charge multiple electric vehicles, supply power to external loads, and expand the power supply radius according to requirements. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the electrical structure of the multifunctional battery energy storage charging and power supply vehicle device.

[0023] In the figure: 1 - energy management system, 2 - uninterrupted power supply, 3 - AC power indicator and surge protection module, 4 - winch control module, 5 - air conditioning module, 6 - rotating equipment, 7 - auxiliary power module, 8 - fire-fighting module, 9 - maintenance socket, 10 - isolation transformer, 11 - grid-connected and off-grid switching module, 12 - transformer temperature controller, 13 - exhaust fan, 14 - No. 2 cable winch, 15 - No. 1 charging pile, 16 - No. 2 charging pile, 17 - No. 1 battery pack, 18 - No. 2 battery pack. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figure 1 In the embodiments of the utility model, the electrical structure of the multifunctional battery energy storage charging and power supply vehicle device comprises an isolation transformer 10, a power supply circuit, a charging circuit, and a charging pile module and a battery pack module connected with the charging circuit, wherein:

[0026] The power supply circuit is connected with a commercial power grid and is used to supply power to the charging circuit when the battery pack module is charging.

[0027] The charging circuit is used to take power from the commercial power grid when the battery pack module is charging, and transmit the electric energy to the battery pack module and the charging pile module and external loads when the battery pack module is discharging.

[0028] Further, in the embodiments of the present application, an energy management system 1 (EMS) is further included, which is used to control the power supply circuit to supply power to the charging circuit, the charging circuit to supply power to the battery pack module, and the battery pack module to supply power to the charging pile module. In addition, a 4G router is additionally arranged in the energy management system 1 to realize remote operation and maintenance.

[0029] The power supply circuit is connected to one side of the isolation transformer 10, and the power supply circuit includes a phase line A, a phase line B, a phase line C and a ground line PE. A total circuit breaker QF0, a first electric meter 1PJ and an AC power indicator and surge protection module 3 are arranged between the power supply circuit and the isolation transformer 10. The total circuit breaker QF0 is an AC power line total switch. The first electric meter 1PJ is used to measure the charging power of the power grid. The charging power is the power provided by the power supply circuit to the charging circuit.

[0030] Further, in the embodiment of the present application, the power supply circuit is provided with a first cable winch 1JP at the front end of the total circuit breaker QF0. The cable on the first cable winch 1JP is connected to the power grid side distribution box. After checking, the power grid side distribution box switch is closed to use the power grid for power supply. In the embodiment, a first cable winch 1JP is added between the power grid and the isolation transformer 10. The first cable winch 1JP is an electric winch, so that the charging and power supply device can be connected to the power grid smoothly (when not connected to the power grid, the power supply of the electric winch is provided by the battery module). The length of the cable in the first cable winch 1JP can be freely contracted according to the application scene requirements. The winch is electric, which is convenient to operate.

[0031] In addition, in the embodiment of the present application, the AC power indicator and surge protection module 3 is provided with a phase series indicator lamp HR, a fuse FU, an AC surge protection switch QF1 and an AC surge SPD. The indicator lamp HR is used to indicate whether the power supply circuit has power. The fuse FU is an indicator lamp protection fuse. The AC surge protection switch QF1 is an AC surge protector. The AC surge SPD can suppress the overvoltage of the power grid or the overvoltage when lightning strikes, so as to avoid the damage of the equipment caused by the overvoltage of the power grid or the overvoltage when lightning strikes.

[0032] It should be further pointed out that the isolation transformer 10 is connected with a temperature controller WK and an exhaust fan FAN. The temperature controller WK is a transformer temperature controller, and the exhaust fan FAN is used for heat dissipation of the transformer.

[0033] In the embodiment of the present application, the charging circuit is connected to the other side of the isolation transformer 10. The charging circuit includes an A-phase distribution bus TMY-A, a B-phase distribution bus TMY-B, a C-phase distribution bus TMY-C, a zero line bus TMY-N and a ground line bus TMY-PE. The charging pile module includes a first charging pile 15 and a second charging pile 16. The battery pack module includes a first battery pack 17 and a second battery pack 18.

[0034] The first charging pile 15 is connected with the A-phase power distribution bus, the B-phase power distribution bus, the C-phase power distribution bus, the zero line bus and the ground line bus, and a first charging pile switch QF3 and a third electric meter 3PJ are connected in series on the first charging pile 15; the second charging pile 16 is connected with the A-phase power distribution bus, the B-phase power distribution bus, the C-phase power distribution bus, the zero line bus and the ground line bus, and a second charging pile switch QF4 and a fourth electric meter 4PJ are connected in series on the second charging pile 16; when the electric vehicle needs to be charged, the first charging pile switch QF3 and the second charging pile switch QF4 are closed, and the charging operation can be performed by scanning the code on the charging pile; during the charging process, the third electric meter 3PJ and the fourth electric meter 4PJ can respectively measure the electric quantity discharged through the first charging pile 15 and the second charging pile 16; in the embodiment, the third electric meter 3PJ and the fourth electric meter 4PJ measure the electric quantity discharged through the charging pile by the third current transformer 3CT and the fourth current transformer 4CT (external load power supply metering current transformer).

[0035] The first battery pack 17 is connected with the A-phase power distribution bus, the B-phase power distribution bus, the C-phase power distribution bus, the zero line bus and the ground line bus, and a first energy storage converter switch QF5, a fifth electric meter 5PJ and a first energy storage converter 1PCS are connected in series on the first battery pack 17; the second battery pack 18 is connected with the A-phase power distribution bus, the B-phase power distribution bus, the C-phase power distribution bus, the zero line bus and the ground line bus, and a second energy storage converter switch QF6, a sixth electric meter 6PJ and a second energy storage converter 2PCS are connected in series on the second battery pack 18; when the charging circuit charges the battery pack module, the fifth electric meter 5PJ and the sixth electric meter 6PJ are used to measure the charging electric quantity of the charging circuit; when the battery pack module discharges the charging circuit, the fifth electric meter 5PJ and the sixth electric meter 6PJ are used to measure the discharging electric quantity of the battery pack module.

[0036] Further, in the embodiment, the charging circuit is connected with a second cable winch 14 (2JP), the second cable winch 14 is provided with a second circuit breaker QF2 and a second electric meter 2PJ, the second circuit breaker QF2 is an external load power supply switch, and the second electric meter 2PJ is an external load power supply metering electric meter; when the external load needs to be powered, the cable on the second cable winch 14 is connected to the power consumption equipment, the second circuit breaker QF2 is closed, and the external power supply can be realized; during the power supply process, the electric quantity discharged by the external load is measured by the second electric meter 2PJ; in the embodiment, the second electric meter 2PJ measures the electric quantity discharged by the external load by the second current transformer 2CT (external load power supply metering current transformer).

[0037] Please refer to Figure 1In the embodiment of the present application, the charging circuit is sequentially connected with the on-off grid switching module 11, the winch control module 4, the air conditioner module 5, the dynamic ring device 6, the auxiliary power module 7, the fire-fighting module 8 and the maintenance socket 9, the on-off grid switching module 11 is used for automatically switching on and off the grid; the winch control module 4 and the air conditioner module 5 are connected with the A-phase power distribution bus, the B-phase power distribution bus, the C-phase power distribution bus, the zero line bus and the ground line bus; the dynamic ring device 6 is connected with the A-phase power distribution bus, the zero line bus and the ground line bus; the auxiliary power module 7 is connected with the B-phase power distribution bus, the zero line bus and the ground line bus; the fire-fighting module 8 is connected with the C-phase power distribution bus, the zero line bus and the ground line bus; and the maintenance socket 9 is connected with the B-phase power distribution bus, the zero line bus and the ground line bus.

[0038] Further, in the embodiment of the present application, the winch control module 4 is provided with a winch control box switch QF8 connected with the A-phase power distribution bus, the B-phase power distribution bus and the C-phase power distribution bus; the air conditioner module 5 is provided with an air conditioner switch QF9 connected with the A-phase power distribution bus, the B-phase power distribution bus and the C-phase power distribution bus; the dynamic ring device 6 is provided with a dynamic ring device switch QF10 connected with the A-phase power distribution bus and the zero line bus; the auxiliary power module 7 is provided with an auxiliary power switch QF11 connected with the B-phase power distribution bus and the zero line bus; the fire-fighting module 8 is provided with a fire-fighting switch QF12 connected with the C-phase power distribution bus and the zero line bus; and the maintenance socket 9 is provided with a maintenance socket switch QF12 connected with the B-phase power distribution bus and the zero line bus. In addition, in the embodiment of the present application, the charging circuit is further connected with an uninterruptible power supply 2 (UPS) provided with an uninterruptible power supply switch QF7.

[0039] In the embodiment of the present application, a method for using the electrical structure of the multifunctional battery energy storage charging and power supply vehicle device comprises the following steps:

[0040] S101, start the uninterruptible power supply 2 and the energy management system 1; close the 1# high voltage box 1HV and the 2# high voltage box 2HV of the battery pack; close the first energy storage converter switch QF5 and the second energy storage converter switch QF6; and the fifth electric meter 5PJ and the sixth electric meter 6PJ respectively measure the electric quantity charged and discharged through the first energy storage converter 1PCS and the second energy storage converter 2PCS;

[0041] S102, operate the energy management system 1 to start the No. 1 energy storage converter 1PCS and the No. 2 energy storage converter 2PCS, output AC power through the battery pack inverter, and make the AC bus (TMY-A, TMY-B, TMY-C, TMY-N) powered;

[0042] S103, close the air conditioner switch QF9, and the air conditioner will operate according to the set operation strategy; close the dynamic ring equipment switch QF10, and the dynamic ring system equipment operates normally to monitor the safety of the equipment operating environment; close the auxiliary power switch QF11, and the auxiliary power equipment operates normally; close the fire switch QF12, and the fire system operates normally; close the cable winch control box switch QF8, and the cable on the No. 1 cable winch 1JP is released through the electric operation mechanism; connect the cable on the No. 1 cable winch 1JP to the power grid side distribution box, check that there is no error, and then close the power grid side distribution box switch.

[0043] S104, close the AC surge protection switch QF1, and the AC surge SPD is connected to the AC bus to avoid overvoltage or lightning overvoltage, which may cause equipment damage; close the AC power line switch QF0, and the isolation transformer TR is powered and the incoming line cabinet power indicator HR is bright;

[0044] S105, the off-grid switching controller STS equipment automatically detects the grid voltage, phase sequence, and frequency, and automatically connects to the grid when correct, otherwise not; the transformer temperature controller WK starts or stops the exhaust fan FAN at the bottom of the transformer according to the temperature setting to cool and ventilate the transformer.

[0045] S106, when it is necessary to take power from the power grid to charge the battery pack module, the energy management system 1 issues an instruction to charge the battery pack module; the No. 1 electric meter 1PJ measures the amount of power charged from the power grid; when the external load needs to be powered, connect the cable on the No. 2 cable winch 2JP to the power consumption equipment, close the load output switch QF2, and power the external load. The No. 2 electric meter 2PJ can measure the amount of power discharged to the external load; when the electric vehicle needs to be charged, close the No. 1 charging pile switch QF3 and the No. 2 charging pile switch QF4, and scan the code on the charging pile to charge. The No. 3 electric meter 3PJ and the No. 4 electric meter 4PJ can measure the amount of power discharged through the charging pile, respectively; the maintenance socket switch QF13 can be closed according to the use requirement.

[0046] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0047] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. An electrical structure of a multi-functional battery energy storage charging-powering vehicle device, characterized by, The charging pile module and the battery pack module are connected with the charging circuit. The power supply circuit is connected with the power grid and is used to supply power to the charging circuit when the battery pack module is charging. The charging circuit is used to take power from the power grid when the battery pack module is charging, and transmit the power to the battery pack module and the charging pile module and the external load when the battery pack module is discharging.

2. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device according to claim 1, characterized in that, The energy management system is used to control the power supply circuit to supply power to the charging circuit, the charging circuit to supply power to the battery pack module, and the battery pack module to supply power to the charging pile module.

3. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 1, wherein, The power supply circuit is connected to one side of the isolation transformer, and includes phase line A, phase line B, phase line C and ground line PE.

4. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 1, wherein, The power supply circuit is located in front of the total circuit breaker and is provided with a first cable winch.

5. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 4, wherein, The charging circuit is connected to the other side of the isolation transformer, and includes A-phase distribution bus, B-phase distribution bus, C-phase distribution bus, zero line bus and ground line bus.

6. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 5, wherein, The first charging pile is connected with the A-phase distribution bus, the B-phase distribution bus, the C-phase distribution bus, the zero line bus and the ground line bus, and a first charging pile switch and a third watt-hour meter are connected in series on the first charging pile.

7. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 6, wherein, The second charging pile is connected with the A-phase distribution bus, the B-phase distribution bus, the C-phase distribution bus, the zero line bus and the ground line bus, and a second charging pile switch and a fourth watt-hour meter are connected in series on the second charging pile.

8. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 7, wherein, The first battery pack is connected with the A-phase distribution bus, the B-phase distribution bus, the C-phase distribution bus, the zero line bus and the ground line bus, and a first energy storage converter switch, a fifth watt-hour meter and a first energy storage converter are connected in series on the first battery pack. The second battery pack is connected with the A-phase distribution bus, the B-phase distribution bus, the C-phase distribution bus, the zero line bus and the ground line bus, and a second energy storage converter switch, a sixth watt-hour meter and a second energy storage converter are connected in series on the second battery pack. The charging circuit is connected with a second cable winch, and the second cable winch is provided with a second circuit breaker and a second watt-hour meter.

9. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 8, wherein, The charging circuit is sequentially connected with a parallel and off-grid switching module, a winch control module, an air conditioner module, a dynamic ring device, an auxiliary power module, a fire-fighting module and a maintenance socket, the parallel and off-grid switching module is used for automatically switching between parallel and off-grid; the winch control module and the air conditioner module are connected with an A-phase power distribution bus, a B-phase power distribution bus, a C-phase power distribution bus, a zero line bus and a ground line bus; the dynamic ring device is connected with the A-phase power distribution bus, the zero line bus and the ground line bus; the auxiliary power module is connected with the B-phase power distribution bus, the zero line bus and the ground line bus; the fire-fighting module is connected with the C-phase power distribution bus, the zero line bus and the ground line bus; and the maintenance socket is connected with the B-phase power distribution bus, the zero line bus and the ground line bus.

10. The electrical configuration of the multi-functional battery energy storage charge-power supply vehicle device, according to claim 9, wherein, The winch control module is provided with a winch control box switch connected with the A-phase power distribution bus, the B-phase power distribution bus and the C-phase power distribution bus; the air conditioner module is provided with an air conditioner switch connected with the A-phase power distribution bus, the B-phase power distribution bus and the C-phase power distribution bus; the dynamic ring device is provided with a dynamic ring device switch connected with the A-phase power distribution bus and the zero line bus; the auxiliary power module is provided with an auxiliary power switch connected with the B-phase power distribution bus and the zero line bus; the fire-fighting module is provided with a fire-fighting switch connected with the C-phase power distribution bus and the zero line bus; and the maintenance socket is provided with a maintenance socket switch connected with the B-phase power distribution bus and the zero line bus.

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