Power supply set for mobile devices, method for supplying power, and mobile devices

Abstract

This provides a practical configuration that can effectively address the additional power demands of mobile vehicles. [Solution] The main input terminal 101 of the switch device 1 attached to the mobile body 9 is connected to the grid power transmission and distribution network 8, and the AC input terminal 21 of the portable battery 2 installed on the mobile body 9 is connected to the battery input terminal 103 of the switch device 1 to store power via the main switch 11. The AC output terminal 22 of the portable battery 2 is connected to the battery output terminal 104 of the switch device 1, and the stored power is supplied to the AC load 71 via the main switch 11 and the AC load terminal 102. The DC equipment 72 is powered by connecting to the DC output terminal 24 of the portable battery 2. When the portable battery 2 is removed while the grid power transmission and distribution network 8 is in use, the main switch 11 is operated to maintain the state in which the grid power transmission and distribution network 8 is connected to the AC load 71.

Description

Technical Field

[0001] The invention of this application relates to a technology for supplying power to electrical equipment provided in various moving bodies such as kitchen cars, trailer houses, and pleasure boats.

Background Art

[0002] In various moving bodies such as kitchen cars, trailer houses, and pleasure boats, it is often necessary to provide an external power source separate from the power source (power source for movement) originally possessed by the moving body. In many cases, this occurs in order to add functions retroactively after the manufacture of the moving body or to operate additional equipment on the moving body. For example, a kitchen car is manufactured by modifying a normal small truck or van for transportation (hereinafter referred to as the original vehicle) to add a kitchen function. At this time, it is often necessary to add a power source for the kitchen function separately from the power source possessed by the original vehicle. The original vehicle often has power output terminals such as cigarette sockets, but they are often 12V DC. On the other hand, in order to implement the kitchen function, AC equipment is often required.

[0003] Equipment for implementing the kitchen function often uses general household or other equipment, but most of them have an AC rated voltage (100V). Therefore, it is unrealistic to use the external power source terminals of the original vehicle. Although it is conceivable to convert and use with a converter, when used for many electrical devices, the battery will be excessively consumed, which is likely to interfere with the original function of the driving function. For these reasons, in order to use electrical equipment regardless of the power output terminals of the original vehicle, it is necessary to separately make an external power source available.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] In the mobile vehicles described above, a typical external power source is the grid transmission and distribution network. In other words, it is possible to use the electricity supplied by the power company through the grid transmission and distribution network (transmission lines). For example, a food truck may be placed in an empty space such as a parking lot of a commercial facility, and an outdoor outlet may be installed on the nearby wall and permitted for use. In such cases, the outdoor outlet should be connected to each electrical device inside the food truck to receive power. For DC equipment, an AC-DC converter should be used as appropriate. Electrical equipment in a food truck may include lighting to illuminate the storefront (separate from the lighting used for driving), an onboard refrigerator, and electrical equipment for cooking (such as an induction grill).

[0006] Thus, there is no particular problem if the grid transmission and distribution network can be used as a power source, but such locations and conditions are not often met, and the grid transmission and distribution network is often unavailable. For example, this could occur when there is an event in a park and food trucks set up there. When the grid power transmission and distribution network is unavailable, generators are used. This is similar to the stalls (food stands) at festivals and fairs. However, the use of generators is often prohibited due to safety concerns, as well as noise and smoke emissions. In such cases, it is likely that food trucks will not be able to set up shop even if requested. Incidentally, food trucks are also useful for providing meals during disasters. In areas experiencing power outages or where there is no power source, evacuation centers may be set up, and food trucks may be dispatched on a volunteer basis to provide meals and other services.

[0007] The problem of external power supply for mobile vehicles is more or less the same for other types of vehicles besides food trucks. For example, in the case of a campervan, in addition to the driving battery, there is a sub-battery that supplies power to the electrical equipment in the cabin. However, since the sub-battery also uses DC power, a separate converter is required when bringing in and using household 100V AC electrical equipment. Furthermore, regardless of whether it uses DC or AC power, there is the problem of the sub-battery being depleted in a short time if many electrical devices are brought in and used. To solve these problems, it is possible to prepare and connect a separate generator, but the use of generators is often prohibited at campsites, so the same problem as with food trucks arises.

[0008] Pleasure boats face similar problems. Power output terminals are often 12V DC, similar to cars, meaning that household 100V AC electrical appliances cannot be used directly. Therefore, it is necessary to bring a generator, but this presents problems with noise and exhaust emissions. In recent years, the electrification of ships has progressed, and there is a growing trend to equip pleasure boats with large DC batteries. Consequently, the wiring from the battery has become very thick to handle the high current, but this thickness creates challenges in handling and maintenance, and also increases the risk of poor contact and fire. Furthermore, even when converting this DC power to AC using an inverter, electrical system risks such as reduced conversion efficiency, overheating, and malfunctions are unavoidable. The present invention was made to solve the problem of power supply in such mobile vehicles, and aims to provide a practical configuration that can effectively respond to additional power demands in mobile vehicles. [Means for solving the problem]

[0009] To solve the above problems, this specification discloses inventions for a power supply set for a mobile device, a method for supplying power, and a mobile device. The disclosed power supply set for a mobile body is a set for supplying power to electrical equipment installed on a mobile body that, after being placed in one location and performing a function, can be moved to another location and placed there and perform a function without being fixed to the location where it was placed. This mobile power supply set includes a portable battery and a switch device. The portable battery has a grid input terminal for receiving and storing power from the grid transmission and distribution network, and an output terminal for supplying the stored power to the electrical equipment. The switching device includes a switch and wiring, and when the grid transmission and distribution network is available, it ensures that the output terminal of the portable battery is connected to the electrical equipment when the grid transmission and distribution network is connected to the grid input terminal of the portable battery, and when the portable battery is disconnected from the grid transmission and distribution network, it ensures that the grid transmission and distribution network is connected to the electrical equipment. Furthermore, in order to solve the above problems, the mobile power supply set is: The portable battery has an input terminal for solar power generation panels, which are a power supply means other than the grid transmission and distribution network, to store energy, and when the solar power generation panel is connected to the input terminal, the output terminal remains connected to electrical equipment. It can have this kind of structure. Furthermore, in order to solve the above problems, the mobile power supply set is: The portable battery has a power input unit that receives power from a power source that generates electricity using a drive source installed on the mobile device for movement, and when power is input to the power input unit, the output terminal remains connected to an electrical device. It can have this kind of structure. Furthermore, in order to solve the above problems, the mobile power supply set is: The mobile device has both DC equipment that operates on DC power and AC equipment that operates on AC power, A portable battery has an AC output terminal that connects to a DC device on the mobile device, and a DC output terminal that connects to a DC device on the mobile device. It can have this kind of structure.

[0010] Furthermore, the disclosed invention relates to a method for supplying power, which involves having the owner of a mobile body that can be placed in one location, perform its function, and then be moved to another location and placed there to perform its function, supply power to electrical equipment installed on the mobile body. This delicious, A power storage step involves connecting the input terminal of a portable battery installed on a mobile device to the grid power transmission and distribution network via a switch device, thereby charging the portable battery with power from the grid power transmission and distribution network, After the power storage step, the power supply step involves supplying power to the electrical equipment installed on the mobile body by connecting it to the output terminal of the portable battery via a power supply line. It is equipped with. In this method, The switching device includes a switch and wiring, and when the grid transmission and distribution network is available, it ensures that the output terminal of the portable battery is connected to the electrical equipment when the grid transmission and distribution network is connected to the grid input terminal of the portable battery, and when the portable battery is disconnected from the grid transmission and distribution network, it ensures that the grid transmission and distribution network is connected to the electrical equipment. Furthermore, in order to solve the above problems, the method for supplying electricity is: The mobile unit is equipped with solar power generation panels, which are a means of power supply other than the grid transmission and distribution network. The portable battery has an input terminal for the solar power generation panels to store energy, and when the solar power generation panels are connected to the input terminal, the output terminal remains connected to electrical equipment. It can have this kind of structure. Furthermore, in order to solve the above problems, the method for supplying electricity is: The mobile unit is equipped with a power source that generates power for movement, and the portable battery has a power input unit that receives this power for storage. When power is input to the power input unit, the output terminal remains connected to an electrical device. It can have this kind of structure. Furthermore, in order to solve the above problems, the method for supplying electricity is: The mobile unit is equipped with electrical equipment including DC equipment that operates on DC power and AC equipment that operates on AC power. A portable battery has a DC output terminal that connects to DC equipment on the mobile device, and an AC output terminal that connects to AC equipment on the mobile device. The power supply step is the step of supplying power to both DC and AC equipment. It can have this kind of structure.

[0011] The mobile body according to the disclosed invention is a mobile body that, after being placed in a certain location and performing a function, can be moved to another location and placed there to perform a function without being fixed to that location. This mobile object, Electrical equipment and, It is equipped with a portable battery and a switch device. The portable battery has a grid input terminal for receiving and storing power from the grid transmission and distribution network, and an output terminal for supplying the stored power to the electrical equipment. The switching device includes a switch and wiring, and when the grid power transmission and distribution network is available, it ensures that the output terminal of the portable battery is connected to the electrical equipment when the grid power transmission and distribution network is connected to the input terminal of the portable battery, and when the portable battery is disconnected from the grid power transmission and distribution network, it ensures that the grid power transmission and distribution network is connected to the electrical equipment. Furthermore, in order to solve the above problems, the mobile body will The portable storage battery has an input terminal for a generator for connecting and storing power from a generator, which is a power supply means other than the grid power transmission and distribution network. When the generator is connected to the input terminal for the generator, the state where the output terminal is connected to the electric device is maintained. It can have such a configuration. Also, in order to solve the above problems, in a moving body, The generator can be a solar power generation panel fixed to the moving body, or a portable solar power generation panel that can be placed at a position where it is taken out of the moving body and irradiated with sunlight after being carried into the moving body. Also, in order to solve the above problems, the moving body The portable storage battery has a drive source generated power input unit for inputting and storing power from a drive source power supply that generates power by a drive source provided for the moving body to move. When power is input to the drive source generated power input unit, the state where the output terminal is connected to the electric device is maintained. It can have such a configuration. Also, in order to solve the above problems, the moving body The electric devices include DC devices that operate with direct current and AC devices that operate with alternating current. The portable storage battery can have a configuration having a DC output terminal connected to a DC device and an AC output terminal connected to an AC device. It can have such a configuration.

Advantages of the Invention

[0012] As described below, according to the present invention, where the grid power transmission and distribution network can be used, the grid power transmission and distribution network is used to store power in the portable storage battery and use AC power, and where the grid power transmission and distribution network cannot be used, the stored power can be used to use AC devices and DC devices. Therefore, a practical configuration that can effectively respond to additional power demands in a moving body is provided. At this time, the use of a generator using fossil fuel can be made unnecessary, so AC devices and DC devices can be used even in places where the use of such a generator is prohibited. Furthermore, when the grid transmission and distribution network is available, the AC output terminal of the portable battery is connected to the AC equipment when the grid transmission and distribution network is connected to the input terminal of the portable battery. Conversely, when the portable battery is removed from the grid transmission and distribution network, the grid transmission and distribution network is connected to the AC equipment. Therefore, even when the portable battery is removed and used in another location, there is no disruption to the use of the grid transmission and distribution network. In this respect, it is a practical configuration. Furthermore, a configuration that allows a portable battery to be charged using the power source enables charging while in transit, making it a suitable configuration when the grid power transmission and distribution network is unavailable for extended periods. [Brief explanation of the drawing]

[0013] [Figure 1] This is a schematic diagram showing a power supply set for a mobile device according to the first embodiment. [Figure 2] This figure shows the schematic configuration of the switch device in the first embodiment. [Figure 3] This diagram shows the schematic configuration of the switch device in the second embodiment. [Modes for carrying out the invention]

[0014] The following describes embodiments for carrying out the present invention. Figure 1 is a schematic diagram showing a mobile power supply set according to the first embodiment. The mobile body of this embodiment is a mobile body that, after being placed in a certain location and performing its function, is not fixed to that location but can be moved to another location, placed there, and perform its function. Such a mobile body can take various forms, but Figure 1 shows an example of a food truck. The power supply set for a mobile body in this embodiment is a set for supplying power to electrical equipment on such a mobile body 9, and comprises a switch device 1 and a portable storage battery 2.

[0015] The power supply set for the mobile unit in this embodiment is an add-on. Add-on means that it is installed after the mobile unit 9 has been manufactured. The example shown in Figure 1 is a food truck, which is manufactured by modifying a vehicle (original vehicle) such as a small truck or van, so there can be two different forms of "add-on". That is, it can mean that it is installed when the food truck is manufactured by modifying the original vehicle, or it can mean that it is installed after the food truck has been manufactured. Either is acceptable, but in this embodiment it means the latter.

[0016] In this embodiment, the switch device 1 houses switches and other elements within a switch box. The switch box is often fixed to a wall or the like inside the mobile unit 9, but it may also simply be placed on a seat or floor without being fixed. The portable battery 2 is often not fixed in any particular way and is simply placed on the floor of the cargo area. It may also be fixed to the wall of the cargo area with an easily detachable belt or the like.

[0017] Figure 2 shows a schematic configuration of the switch device. The switch device 1 consists of terminals 101 to 104 provided on the switch box 10, several switches 11 and 12 provided inside the switch box 10, and wiring connecting the terminals 101 to 104 and the switches 11 and 12. Each switch 11 and 12 includes a lever (not shown), and each lever is exposed on the switch box 10 so that it can be operated by the user.

[0018] The terminals on the switch box 10 include a main input terminal 101, which is a terminal for receiving power from the grid transmission and distribution network 8. As shown in Figure 2, one end of the grid AC cable 81 is connected to the main input terminal 101. The other end of the grid AC cable 81 is connected to, for example, an AC outlet 80 in the user's home, and the main input terminal 101 is short-circuited to the AC outlet 80. Another terminal, an AC load terminal 102, is provided on the switch box 10. The AC load terminal 102 is an output terminal for electrical equipment (AC equipment) 71 that operates at the AC rated voltage (100V) on the mobile unit 9. Furthermore, the switch box 10 is also provided with terminals for the portable battery 2, namely a battery input terminal 103 and a battery output terminal 104.

[0019] As shown in Figure 2, the portable battery 2 has an AC input terminal 21 which receives power at AC100V as a grid input terminal and stores power, AC output terminals 22 and 23 which output the stored power at AC100V, and a DC output terminal 24 which outputs the stored power as DC. The AC input terminal 21 is connected to the battery input terminal 103 of the switch device 1 by an input AC cable 25. In this embodiment, the portable battery 2 has two AC output terminals 22 and 23, which will be referred to as the first AC output terminal 22 and the second AC output terminal 23 below. As shown in Figure 2, the first AC output terminal 22 is connected to the battery output terminal 104 by an output AC cable 26.

[0020] The portable battery 2, although not shown in the diagram, includes a power outage detection circuit and an automatic power supply circuit. The power outage detection circuit detects when the receiving voltage becomes zero while the input AC cable 25 is connected to the AC input terminal 21 (detects a power outage), and also detects when the receiving voltage recovers after the power outage detection (detects the resolution of the power outage). The automatic power supply circuit automatically starts supplying power (outputs AC 100V to the AC output terminal 22) when the power outage detection circuit detects a power outage. These functions are the same as those of a so-called uninterruptible power supply (UPS).

[0021] Furthermore, the portable battery 2 is equipped with a reverse power flow prevention circuit and has a reverse power flow prevention function. Reverse power flow prevention is a function that prevents the stored power from flowing in the reverse direction. In other words, it is a function that prevents power from flowing out of the AC input terminal 21. As a portable battery 2 that has these functions, for example, the Anker Solix C1000 manufactured by Anker Japan can be used.

[0022] As shown in Figure 2, the switch box 10 is provided with a main switch 11. The main switch 11 includes two selection terminals 111 and 112 and one common terminal 113. One of the selection terminals is the first selection terminal 111, which is connected to the main input terminal 101. The other is the second selection terminal 112, which is connected to the battery output terminal 104. The common terminal 113 is connected to the AC load terminal 102. The main switch 11 can be switched between a state in which the first selection terminal 111 is short-circuited to the common terminal 113 and the second selection terminal 112 is open from the common terminal 113, and a state in which the first selection terminal 111 is open from the common terminal 113 and the second selection terminal 112 is short-circuited to the common terminal 113, by operating an operating part such as a lever (not shown).

[0023] Furthermore, as shown in Figure 2, one end of another wire 13 is connected to the first selection terminal 111. This wire 13 connects the first selection terminal 111 to the battery input terminal 103 (hereinafter referred to as the battery input wire). Therefore, the battery input terminal 103 is connected to the main input terminal 101 via the first selection terminal 111 of the main switch 11. As a result, the AC input terminal 21 of the portable battery 2 receives power from the grid transmission and distribution network 8 via the input-side AC cable 25, and energy is stored.

[0024] In the main switch 11, when the first selection terminal 111 is open from the common terminal 113 and the second selection terminal 112 is short-circuited to the common terminal 113, the portable battery 2 and the AC load terminal 102 are connected in series with respect to the main input terminal 101 in this order. Hereinafter, this state will be referred to as the normal state. Furthermore, in the main switch 11, when the first selection terminal 111 is short-circuited to the common terminal 113 and the second selection terminal 112 is short-circuited from the common terminal 113, the portable battery 2 is connected to the grid power transmission and distribution network 8 on the input side, but disconnected from the AC load terminal 102 on the output side. This state ensures the connection of the grid power transmission and distribution network 8 to the AC load terminal 102 when the portable battery 2 is removed from the switch device 1. Hereinafter, this state will be referred to as the state for when the battery is removed. The main switch 11 remains in its normal state unless the portable battery 2 is removed, and is set to the removal state when the grid power transmission and distribution network 8 is used with the portable battery 2 removed.

[0025] As shown in Figure 1, an additional switch 12 is provided on the battery input line 13. The additional switch 12 is a switch that can select between short-circuiting and opening the battery input line 13. The additional switch 12 is provided as a safety device for the battery input terminal 103. The additional switch 12 also has an operating part such as a lever (not shown), and the operating part is exposed on the outside (for example, the front) of the switch box 10. By operating the operating part, the short-circuiting and opening of the battery input line 13 can be switched.

[0026] The portable battery 2 has a pass-through function. Specifically, the internal circuitry is configured so that the AC input terminal 21 and AC output terminals 22 and 23 are always short-circuited, regardless of the charging / discharging state and regardless of which input mode is selected. Therefore, when the main switch 11 is in the normal state as shown in Figure 1, the portable battery 2 is charged with power from the grid transmission and distribution network 8, while power from the grid transmission and distribution network 8 is supplied to the AC equipment 71 via the AC load terminal 102.

[0027] The power supply set for the mobile unit in this embodiment can also be used in conjunction with the solar power generation panel 3. In the example shown in Figure 1, the solar power generation panel 3 is mounted on the roof of the mobile unit 9, but it is also possible to have a configuration in which a portable solar power generation panel is housed in the mobile unit 9 and taken out for use on sunny days. In addition, the solar power generation panel 3 may be fixed to the side or back of the mobile unit 9. As shown in Figure 1, the portable battery 2 is equipped with a first DC input terminal 27 as an input terminal for the solar power generation panel 3. The solar power generation panel 3 is connected to the first DC input terminal 27 by a panel DC cable 31.

[0028] Furthermore, the portable battery 2 can also utilize the power generated by the drive source that the mobile unit 9 is equipped with for mobility. That is, the mobile unit 9 is equipped with a drive source power supply 91 that generates power using the drive source. Since the embodiment in Figure 1 is an example of a food truck, the drive source power supply 91 is an alternator, and its output terminal is a cigarette lighter socket 92. The portable battery 2 is equipped with a 12V input DC input terminal (second DC input terminal) 28 for the cigarette lighter socket, and is connected to the cigarette lighter socket 92 by a DC cable 93 for the cigarette lighter socket. The second DC input terminal 28 is an example of the power input section for the drive source generated in the embodiment.

[0029] As shown in Figure 2, the portable battery 2 is equipped with an input selector switch 20 for switching the power input for storage. The input selector switch 20 is equipped with a storage mode selection switch 20 for switching between power from the AC input terminal 21 (AC mode), power from the DC input terminal 27 (DC mode), or a hybrid (HB) mode that uses both types of power for storage. Although not shown in the figure, in DC mode, it is also possible to switch between power from the solar power generation panel 3 and power from the drive source 91.

[0030] In the configuration shown in Figure 1, when the portable battery 2 is removed while the main input terminal 101 is connected to the power transmission and distribution network 8, the main switch 11 is operated. This point will be explained with reference to Figure 2.

[0031] When removing the portable battery 2 while the main input terminal 101 is connected to the grid transmission and distribution network 8, the main switch 11 and the additional switch 12 must be operated beforehand to set them to the removal state. Specifically, the additional switch 12 is first operated to open it. Then the main switch 11 is operated to short-circuit the first selection terminal 111 to the common terminal 113, and the additional switch 12 is opened. By setting it to the removal state, the portable battery 2 is disconnected from the first AC output terminal 22 and also disconnected from the main input terminal 101. The grid transmission and distribution network 8 is connected to the AC load terminal 102 via the main input terminal 101, the first selection terminal 111 and the common terminal 113 of the main switch 11. Therefore, even when the portable battery 2 is removed, as long as the main input terminal 101 is connected to the grid transmission and distribution network 8, grid power is maintained to be supplied from the AC load terminal 102. If the solar power generation panel 3 is connected to the DC input terminal 27, it is acceptable to leave it as is. However, if you are taking the portable battery 2 outdoors, disconnect the DC cable 31 from the DC input terminal 27. Also, if you are completely removing the portable battery 2, disconnect the cables from the second AC output terminal 23 and the DC output terminal 24.

[0032] The operation of such a mobile power supply set will be described below. The following description also serves as a description of an embodiment of the invention for a method of supplying power. The mobile power supply set is sold to users by a business operator. Therefore, the implementer of the method invention according to this embodiment is the business operator that sold the mobile power supply set. In this example, the user is a user of a food truck, a person who sells food and beverages on the street or elsewhere using the food truck. The business operator or user fixes the switch device 1 to a wall or the like inside the mobile body 9, or installs it in an unobtrusive location inside the mobile body 9. They also install the portable battery 2 inside the mobile body 9. The portable battery 2 is not completely fixed to the mobile body 9, but is placed on the floor or the like, or is detachably fixed with fastening bands or the like.

[0033] The user stops the mobile unit 9 in a location where it can receive power from the grid transmission and distribution network 8. This location could be the user's home parking lot or a location where the owner has permitted the use of an outdoor outlet. Then, the user connects the main input terminal 101 to the grid transmission and distribution network 8 with the grid AC cable 81. That is, the user connects the grid AC cable 81 to the AC outlet 80 at their home or to an AC outlet 80 at an outside facility where their use is permitted, and connects it to the main input terminal 101. The main switch 11 is set to the normal state, and the additional switch 12 is set to the ON (short circuit) state. As a result, the portable battery 2 is charged with power from the grid transmission and distribution network 8, and voltage is applied to the AC load terminal 102.

[0034] In the case of a home parking lot, the AC load terminal 102 is rarely used, but if the AC equipment 71 is fixed to the mobile unit 9 or is used continuously, the AC load terminal 102 may be used in a home parking lot. When operating outside the home, the AC load terminal 102 is used more frequently. Specifically, when the mobile unit 9, which is a food truck, moves to a designated location and begins operations, an AC device 71 is connected to the AC load terminal 102. In addition, another AC device 71 (e.g., a lighting fixture) is connected to the second AC output terminal 23 of the portable battery 2 via an AC cable. Furthermore, a DC device 72 with a suitable voltage is connected to the DC output terminal 24. It is also possible that a DC-DC converter is used to convert to a suitable voltage. It is also possible that an outlet is provided on the wall of the cargo compartment of the mobile unit 9, and the AC load terminal 102 is connected to the outlet via an AC cable.

[0035] In this case, if the location is such as a park where the grid power transmission and distribution network 8 is unavailable, the grid AC cable 81 is not connected to the main input terminal 101, and the power supplied to the AC equipment 71 and DC equipment 72 will be the power stored in the portable battery 2. Furthermore, a solar power generation panel 3 is connected to the first DC input terminal 27 by a DC cable 31, and if it is sunny at home, while out and about, or while driving, the portable battery 2 will be charged with the power generated by the solar power generation panel. This means that power from the portable battery 2 is consumed from each AC output terminal 22, 23 and DC output terminal 24 while the solar power generation panel 3 is being charged. Furthermore, when the mobile unit 9 is in motion, the portable battery 2 can also be charged by power from the drive source power supply 91 input to the second DC input terminal 28.

[0036] In this way, where power from the grid transmission and distribution network 8 is available, the grid AC cable 81 is connected to store power and consume AC power, while where power from the grid transmission and distribution network 8 is unavailable, power from the portable battery 2 is consumed. In this case, it may be necessary to remove the portable battery 2 and use it in another location. For example, if AC equipment 71 or DC equipment 72 is located far away when you are out and it is difficult to supply power by running a cable, you can remove the portable battery 2 and take it to where the AC equipment 71 or DC equipment 72 is located. In this case, if the grid AC cable 81 is connected to the grid transmission and distribution network 8 and grid power is being used, the connection will be disconnected if left as is, so you must operate the main switch 11. That is, after ensuring safety by setting the additional switch 12 to the off (open) state beforehand, switch the main switch 11 from the normal state to the state for removal. This allows you to take the portable battery 2 to another location and use it while maintaining the power supply from the grid transmission and distribution network 8 to the AC equipment 71 or DC equipment 72.

[0037] According to the mobile power supply set of the embodiment described above, where the grid transmission and distribution network 8 is available, the portable battery 2 can be charged and AC power can be used by utilizing the grid transmission and distribution network 8, while where the grid transmission and distribution network 8 is unavailable, the stored power can be used to power AC equipment 71 and DC equipment 72. This provides a practical configuration that can effectively respond to the additional power demand (AC equipment 71 and DC equipment 72) of the mobile unit 9. In this case, the use of generators using fossil fuels can be eliminated, so AC equipment 71 and DC equipment 72 can be used even in places where the use of such generators is prohibited. Furthermore, since the portable battery 2 can be charged using the power source 91, charging can be performed while on the move, making it a suitable configuration for situations where the grid power transmission and distribution network 8 is unavailable for extended periods.

[0038] Furthermore, according to the power supply set for mobile devices of this embodiment, when the grid transmission and distribution network 8 is available, the first AC output terminal 22 of the portable battery 2 is connected to the AC equipment 71 when the grid transmission and distribution network 8 is connected to the AC input terminal 21 of the portable battery 2. Also, when the portable battery 2 is removed from the grid transmission and distribution network 8, the grid transmission and distribution network 8 is connected to the AC equipment 71. Therefore, even when the portable battery 2 is removed and used in another location, there is no disruption to the use of the grid transmission and distribution network 8. In this respect as well, it is a practical configuration.

[0039] The fact that the portable battery 2 is equipped with a reverse power flow prevention function means that users do not need to apply for power. In the configuration of this embodiment, when the switch device 1 is connected to the grid transmission and distribution network 8, if power flows in reverse from the AC input terminal 21 of the portable battery 2, this power will flow into the grid transmission and distribution network 8. Since the power generated by the solar power generation panel 3 will be sent to the grid transmission and distribution network 8, in this case, a so-called power application is required. Power applications are known to be complicated, but in the mobile power supply set of this embodiment, there is no reverse power flow, so a power application is unnecessary, and users can supply power to mobile devices without any hassle. In addition, in the configuration shown in Figure 2, an additional safety switch may be provided on the line between the main input terminal 101 and the main switch 111.

[0040] Next, a power supply set for a mobile device according to a second embodiment will be described. The following description also describes the mobile device according to the second embodiment and the method for supplying power according to the second embodiment. Figure 3 shows a schematic configuration of the switch device in the mobile power supply set of the second embodiment. This mobile power supply set is also retrofitted to the mobile unit 9 and comprises a switch device 1 and a portable battery 2. What distinguishes this mobile power supply set from the one shown in Figure 1 is that when power is stored using the grid transmission and distribution network 8, the portable battery 2 is in parallel with the AC load terminal 102.

[0041] As shown in Figure 3, in the second embodiment, the switch device 1 is provided with a box-internal main line 14 and a battery input line 13, which are branched from the line connected to the main input terminal 101. The box-internal main line 14 extends from the branching point and is connected to the AC load terminal 102 via the main switch 11. The battery output terminal 104 is also connected to the AC load terminal 102 via the main switch 11. The main switch 11 is a switch that shorts the box-internal main line 14 and the AC load terminal 102 (hereinafter referred to as the grid utilization state) when supplying power to the AC equipment 71 using the grid transmission and distribution network 8, and opens the box-internal main line 14 from the AC load terminal 102 and shorts the battery output terminal 104 to the AC load terminal 102 (hereinafter referred to as the battery utilization state) when supplying power to the AC equipment 71 using the portable battery 2 without using the grid transmission and distribution network 8.

[0042] As can be seen from Figure 3, when the main switch 11 is set to the battery utilization state, the portable battery 2 and the AC load terminal 102 are connected in series. That is, when the portable battery 2 is stored using the grid transmission and distribution network 8, it is connected in parallel with the AC load terminal 102, but when it is discharged, it is connected in series with the AC load terminal 102. The portable battery 2 is connected to the main input terminal 101 on the input side, but since the grid AC cable 81 is not connected to the main input terminal 101, the power outage detection circuit works and outputs power from the first AC output terminal 22 to supply power to the AC equipment 71.

[0043] As shown in Figure 3, in the second embodiment as well, an additional switch 12 is provided on the battery input line 13. Here too, the additional switch 12 switches between short-circuiting and opening the battery input line 13, and similarly includes a lever (not shown) exposed on the outer surface of the switch box 10. When removing the portable battery 2, the additional switch 12 is operated to open the battery input line 13. Even if the battery input terminal 103 is accidentally short-circuited while the grid transmission and distribution network 8 is connected, no overcurrent will flow, and the circuit breaker on the distribution board connected to the grid transmission and distribution network 8 will not trip. In addition, in the configuration shown in Figure 3, an additional safety switch may be installed on the track from the main input terminal 101 to the branching point.

[0044] In each of the above configurations, the portable battery 2 is equipped with a DC input terminal 23 and the solar power generation panel 3 is directly connected to it. However, portable batteries that do not have a DC input terminal 23 can also be used. When using a portable battery that does not have a DC input terminal, an inverter is installed in between to convert the DC voltage output from the solar power generation panel to AC 100V AC, and the inverter is connected to the main input terminal 101. Alternatively, an input terminal for the solar power generation panel may be installed in the switch box 10, and a changeover switch may be installed on the battery input line. The changeover switch is a switch that switches whether to store power in the portable battery or in the solar power generation panel depending on the grid power.

[0045] In the above configurations of mobile power supply sets, it has been explained that there is one AC load terminal 102 on the switch box 10, but there may be multiple AC load terminals 102. In this case, the wiring from the first AC output terminal 22 is branched and connected to each AC load terminal 102, but the total amount of current flowing through each AC load terminal 102 is kept within the allowable range of the first AC output terminal 22.

[0046] In the above explanation, a food truck was used as an example of the mobile body 9, but the present invention can be applied to various mobile bodies such as campervans, trailer homes, and pleasure boats. Furthermore, the present invention can also be applied to temporary housing that is installed temporarily. When temporary housing is moved to another location and reinstalled, it falls under the category of a mobile body in the present invention. Furthermore, providing the present invention to small vessels such as pleasure boats offers the advantage of eliminating the need for large DC batteries or allowing the use of smaller ones. This eliminates the complexities of routing thick wiring from large batteries and the associated maintenance, resulting in significant reductions in various electrical system risks.

[0047] In each of the above embodiments, the switch box 10 may not have a main input terminal 101 or an AC load terminal 102, and the cables may simply extend through it. That is, each cable, which serves as the AC cable 81 for the grid, may extend directly and be connected to the first selection terminal 111 of the main switch 11. Similarly, a cable connected to the common terminal 113 of the main switch 11 may extend directly and be connected to an AC device 71 or an outlet. In such a configuration, the switch box 10 is provided with an opening through which these cables are inserted. In addition, in the above configuration, the first selection terminal 111 of the main switch 11 may be the main input terminal and the common terminal 113 may be the AC load terminal.

[0048] In each of the embodiments described above, only one set of switch device 1 and portable battery 2 is provided on the mobile body 9. However, it is also possible to mount multiple sets of switch device 1 and portable battery 2 on the mobile body 9. In this case, each switch device 1 is connected to a distribution board which is the end of the power transmission and distribution network 8. That is, each switch device 1 is connected to a branch switch on the distribution board. [Explanation of Symbols]

[0049] 1. Switching device 10 Switch Box 101 Main Input Terminal 102 AC load terminal 103 Battery input terminal 104 Battery output terminal 11 Main switch 12 Additional switches 2 Portable battery 21 AC input terminals 22 AC output terminals 23 AC output terminals 24 DC output terminals 27 DC input terminals 3. Solar power panels 71 AC equipment 72 DC equipment 8 grid transmission and distribution network 9 Mobile Unit 91 Power supply

Claims

1. A mobile body that, after being placed in one location and performing a function, can be moved to another location without being fixed to that location and placed there to perform a function, and a mobile power supply set for supplying power to electrical equipment installed on the mobile body, It is equipped with a portable battery and a switch device. A portable battery has a grid input terminal for receiving and storing power from the grid transmission and distribution network, and an output terminal for supplying the stored power to the electrical equipment. A mobile power supply set characterized by a switch device including a switch and wiring, which, when the grid power transmission and distribution network is available, ensures that the output terminal of the portable battery is connected to the electrical equipment when the grid power transmission and distribution network is connected to the grid input terminal of the portable battery, and ensures that the grid power transmission and distribution network is connected to the electrical equipment when the portable battery is disconnected from the grid power transmission and distribution network.

2. The portable battery has an input terminal for a solar power generation panel, which is a power supply means other than the grid transmission and distribution network, for storing energy, and the output terminal is maintained connected to the electrical equipment when the solar power generation panel is connected to the input terminal for the panel. This is the mobile power supply set according to claim 1.

3. The portable battery has a drive source power input unit that receives power from a drive source power supply that generates power using a drive source provided for the mobile body to move, and the mobile body power supply set according to claim 1 is characterized in that the output terminal remains connected to the electrical equipment when power is being input to the drive source power input unit.

4. The aforementioned mobile body is equipped with electrical equipment including DC equipment that operates on DC and AC equipment that operates on AC. The portable battery is characterized by having a DC output terminal that is connected to a DC device of the mobile body and an AC output terminal that is connected to an AC device of the mobile body, as described in claim 1, 2, or 3.

5. A method for having the owner of a mobile body, which can be placed in one location and perform a function, and then moved to another location without being fixed to that location and placed there and perform a function, supply power to electrical equipment installed on the mobile body, A power storage step involves connecting the input terminal of a portable battery installed on a mobile device to the grid power transmission and distribution network via a switch device, thereby storing power in the portable battery using electricity from the grid power transmission and distribution network. The system includes a power supply step, which involves supplying power to an electrical device installed on a mobile body by connecting it to the output terminal of a portable battery via a power supply line. A method for supplying power, characterized in that the switching device includes a switch and wiring, and when the grid power transmission and distribution network is available, the output terminal of the portable battery is connected to the electrical equipment when the grid power transmission and distribution network is connected to the input terminal of the portable battery, and when the portable battery is disconnected from the grid power transmission and distribution network, the grid power transmission and distribution network is connected to the electrical equipment.

6. The method for supplying power according to claim 5, characterized in that the mobile body is equipped with a solar power generation panel, which is a power supply means other than the grid transmission and distribution network, the portable storage battery has a panel input terminal for connecting to and storing the solar power generation panel, and the output terminal is maintained connected to the electrical equipment when the solar power generation panel is connected to the panel input terminal.

7. The method for supplying power according to claim 5, characterized in that the mobile body is equipped with a power source that generates power using a drive source for movement, the portable battery has a power input unit that receives power from the power source and stores power, and the output terminal is maintained connected to the electrical equipment when power is input to the power input unit.

8. The aforementioned mobile body is equipped with electrical equipment including DC equipment that operates on DC and AC equipment that operates on AC. The portable battery has a DC output terminal that connects to a DC device on the mobile body and an AC output terminal that connects to an AC device on the mobile body. The method for supplying power according to claim 5, 6, or 7, characterized in that the power supply step is a step of supplying power to both DC equipment and AC equipment.

9. A mobile body that, after being placed in one location and performing its function, can be moved to another location without being fixed to that location and placed there to perform its function, It is equipped with electrical equipment, a portable battery, and a switch device. A portable battery has a grid input terminal for receiving and storing power from the grid transmission and distribution network, and an output terminal for supplying the stored power to the electrical equipment. A mobile device comprising a switch and wiring, characterized in that, when the grid power transmission and distribution network is available, the output terminal of the portable battery is connected to the electrical equipment when the grid power transmission and distribution network is connected to the input terminal of the portable battery, and the grid power transmission and distribution network is connected to the electrical equipment when the portable battery is disconnected from the grid power transmission and distribution network.

10. The portable battery has a panel input terminal for connecting and storing energy from a solar power generation panel, which is a power supply means other than the grid transmission and distribution network, and the mobile body according to claim 9 is characterized in that the output terminal is maintained connected to the electrical equipment when the solar power generation panel is connected to the panel input terminal.

11. The portable battery has a drive source power input unit that receives power from a drive source power supply that generates power by a drive source provided for the mobile body to move, and the mobile body according to claim 9 is characterized in that the output terminal is maintained connected to the electrical equipment when power is input to the drive source power input unit.

12. The aforementioned electrical equipment includes DC equipment that operates on DC power and AC equipment that operates on AC power. The portable battery is characterized by having a DC output terminal for connecting to a DC device and an AC output terminal for connecting to an AC device, as described in 9, 10, or 11.

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