TWI723348B - Mobile power supply system - Google Patents

Abstract

A mobile power supply system includes a mobile energy storage cabinet and a vehicle head. The mobile energy storage cabinet includes a bearing platform, a cabinet, an energy storage device and a power conversion device arranged in the cabinet, the The energy storage device includes a plurality of batteries. The power conversion device receives external AC power and converts DC power, charges the batteries of the energy storage device, and converts the DC power of the batteries into AC power and then outputs to the outside; the bearing platform includes a plurality of wheels. When the detachment method is combined with the front of the car, the front of the car can drive the mobile energy storage cabinet to move. In this way, the mobile energy storage cabinet can be moved to a place that needs power supply to provide electricity, or moved to a rechargeable place for charging, making the storage and supply of electricity more flexible.

Description

Mobile power supply system

The invention relates to a power supply system; in particular, it refers to a mobile power supply system that can be moved to various places.

In recent years, the global greenhouse effect has become more and more obvious. Although the climate has changed, the scale of natural disasters has become larger and larger. These natural counterattacks have forced people to change their lifestyles as soon as possible to reduce damage to the environment. Among them, the exhaust gas emitted by fuel-engined vehicles is quite destructive to the environment and is one of the factors that cause the greenhouse effect, and exhaust gas has a negative impact on people's health. Therefore, all countries in the world are committed to electric vehicles. To replace fuel-powered vehicles.

The utilization rate of electric vehicles is increasing. For example, electric buses, electric cars, electric cars, etc., can be seen in the streets and alleys, but the charging stations for electric vehicles are not as popular as gas stations. Therefore, The inconvenience of charging has discouraged people who want to buy electric vehicles, which still hinders the promotion of electric vehicles. The reason is that charging stations require a lot of electricity, and power companies need to re-distribute electricity to meet the power needs of charging stations. However, when charging stations need to be popularized, the power company’s re-distribution projects are vast and cannot be Completed in a short time. How to solve the charging problem of electric vehicles is the main topic that needs to be considered in the next step of promoting electric vehicles, so that more people can accept it and use it, and reduce the impact of the greenhouse effect.

In addition, in order to avoid concentrated use of electricity in the same time period and reduce the equipment burden of power plants, power companies will have different charging standards according to different power consumption periods. For example, the electricity price during peak hours is higher than that during off-peak hours to encourage Users use electricity during off-peak hours and reduce the use of electricity during peak hours. Of course, the off-peak power cannot be reserved for use during peak periods, which often results in insufficient power generation during peak periods, and more generator sets are required to respond to peak periods.

In addition, power companies provide contracted power services for users (such as factories) that use more electricity, that is, users purchase a predetermined amount of electricity from the power company at a lower electricity rate and use it within a billing cycle. Of course, when the user's actual power consumption is less than the predetermined power, the user still needs to pay the full amount of the predetermined power, and the unused power cannot be stored, leading to waste of power expenditure.

In view of this, the object of the present invention is to provide a mobile power supply system that can be moved to a place where power supply is needed to supply power, and it can be charged at a place where power can be supplied to save power.

In order to achieve the above-mentioned objective, the present invention provides a mobile power supply system including at least one mobile energy storage cabinet and a vehicle head. The at least one mobile energy storage cabinet includes a bearing platform, a cabinet, an energy storage device, and a vehicle head. A power conversion device, the carrying platform is provided with a plurality of wheels; the cabinet is arranged on the carrying platform, the cabinet has an accommodating space; the energy storage device is accommodated in the accommodating space of the cabinet, and the energy storage The device includes a plurality of storage batteries; the power conversion device is accommodated in the accommodating space of the cabinet and is electrically connected to the energy storage device; the power conversion device receives external AC power and converts DC power into the storage batteries of the energy storage device Charging, and converting the direct current of the batteries into alternating current and outputting to the outside; the head of the vehicle is connected to the bearing platform in a detachable manner, and the head of the vehicle drives the at least one mobile energy storage cabinet to move.

The effect of the present invention is that the front of the car can be detached from the bearing platform to move the mobile energy storage cabinet to the place where power supply is needed, provide power, reduce the vast project of power company re-distribution, and reduce the burden on local power plants. When charging is needed, you can use the front of the car to move the mobile storage cabinet to a rechargeable place, such as moving to a factory, and use the unused power to charge it to save the unused power, or charge it during off-peak hours To save the power during off-peak hours. The car head detached from the carrying platform can go to other locations to perform tasks or move other mobile energy storage cabinets, so as to save space in places where power is needed or where it can be charged, and also improve the economic benefits of the car head.

In order to explain the present invention more clearly, preferred embodiments are described in detail in conjunction with the drawings as follows. Please refer to Figures 1 to 2, which is a mobile power supply system 100 according to a first preferred embodiment of the present invention. It includes a mobile energy storage cabinet 10 and a car head 30. The mobile energy storage cabinet 10 includes a carrier The table 12, a cabinet 14, an energy storage device 16 and a power conversion device 20, in which:

The bottom of the bearing platform 12 has a plurality of wheels 122, and the front end has a first coupling part taking the coupling pin 124 as an example. The cabinet body 14 is disposed on the carrying platform 12 and has an accommodating space 142 for the energy storage device 16 to be accommodated. In this embodiment, the cabinet body 14 can be used in a container of 10 feet, 20 feet, or 40 feet. The energy storage device 16 is electrically connected to the power conversion device 20 and is accommodated in the accommodating space 142 of the cabinet 14. The energy storage device 16 includes a plurality of battery packs 162, and each battery pack 162 has a plurality of storage batteries 162a. There can also be at least one battery pack 162. The power conversion device 20 receives the external AC power and converts the DC power to charge the storage batteries 162a of the energy storage device 16, and converts the DC power of the storage batteries 162a into AC power and outputs it to the outside. The cabinet 14 can be fixedly coupled to the carrying platform 12 or detachably coupled to the carrying platform 12.

The vehicle head 30 has a second coupling part, taking the coupling seat 302 as an example, for connecting with the coupling pin 124 of the bearing platform 12 in a detachable manner. In this way, the vehicle head 30 can drive the mobile energy storage cabinet 10 to move to various places, and can also be moved to a suitable location and use external AC power to convert DC power to charge the battery 162a of the energy storage device 16, or it can be moved to a suitable location. The storage battery 162a of the energy storage device 16 is used to convert AC power to the outside.

In this embodiment, the power conversion device 20 includes a switching module 22 and a conversion module 24 that are electrically connected, and the conversion module 24 is electrically connected to the energy storage device 16, and the switching module 22 has a first input Port 22a and a first output port 22b (ie, at least one output port defined in the present invention). The first input port 22a receives external AC power, and the first output port 22b is for outputting AC power to the outside. The conversion module 24 is used for conversion between direct current and alternating current.

In order to facilitate the connection of the first input port 22a and the first output port 22b to the outside, the mobile energy storage cabinet 10 further includes a collector box 18 disposed in the cabinet body 14. The collector box 18 has an AC input connector 182 And an AC output connector 184, the AC input connector 182 is electrically connected to the first input port 22a, and the AC output connector 184 is electrically connected to the first output port 22b.

The switching module 22 can be operated in one of a charging mode and a power supply mode. The switching module 22 can be designed to automatically operate in a charging mode or a power supply mode, or can be operated in a charging mode or a power supply mode under external control. The operation methods of charging mode and power supply mode will be explained later in conjunction with Figures 3 to 5.

Please cooperate with Figure 3, when the mobile energy storage cabinet 10 is moved to a place with AC power supply facilities, the AC input connector 182 can be connected to the power supply setting, and the switching module 22 is operated in the charging mode. At this time, the switching module 22 receives the AC power from the power supply facility via the first input port 22a and transmits it to the conversion module 24. The conversion module 24 converts the AC power to DC power and transmits it to the energy storage device 16 to charge the battery 162a of the energy storage device 16. For example, move to a factory and use the unused power to charge to save the unused power, or charge during off-peak hours to save the power during off-peak hours.

Please cooperate with Figure 4, when the mobile energy storage cabinet 10 is moved to a place that needs power supply (for example, it needs to be supplied to the grid), the AC output connector 184 can be connected to the grid, and the switching module 22 operates in the power supply mode. At this time, The conversion module 24 receives the DC power from the battery 162a of the energy storage device 16 and converts it to AC power and transmits it to the switching module 22. The first output port 22b of the switching module 22 outputs the AC power through the AC output connector 184 for supply AC power to the grid, thereby reducing the burden on power plants. In this embodiment, when the switching module 22 is operating in the power supply mode, the storage battery 162a is in a discharged state and will not be charged at the same time.

Please cooperate with Figure 5 to move the mobile energy storage cabinet 10 to a place that needs power supply (take the charging station of an electric vehicle as an example), connect the AC output connector 184 to the charging pile, and switch the module 22 to operate in the power supply mode , It can also supply alternating current to the charging pile, which converts the alternating current into direct current to charge the electric vehicle. In this way, the vast project of the power company to re-distribute the charging station is reduced.

It is also worth mentioning that the front 30 detached from the carrying platform 12 can go to other locations to perform tasks or move other mobile energy storage cabinets. In addition to saving space in places where power is needed or where charging is possible, it also improves the front of the vehicle. 30 economic benefits.

In practice, the number of first output ports 22b of the switching module 22 and the number of AC output connectors 184 of the collector box 18 can also be plural respectively, and each first output port 22b is electrically connected to each AC output connector 184, whereby different AC output connectors 184 are connected to different external facilities.

Please refer to FIG. 6, which is a mobile power supply system 200 according to the second preferred embodiment of the present invention. It is based on the first embodiment. The difference is that in this embodiment, one car head 36 corresponds to a plurality of mobile storage devices. The energy cabinet 32, with the detachable design of the front 36 and the carrying platform 34, can be dispatched by one head 36 to move the mobile energy storage cabinets 32 to different locations, for example, three mobile energy storage cabinets 32 can be moved separately To a location with power supply facilities that provide AC power, to a location that needs to be powered to the grid, and to a charging station to supply power to a charging pile. In this way, the electric power dispatching is made more flexible, and a plurality of mobile energy storage cabinets 32 share the same vehicle head 36, which effectively saves the cost of purchasing multiple vehicle heads 36.

Please refer to FIG. 7, which is a mobile power supply system 300 according to the third preferred embodiment of the present invention. It is based on the architecture of the first embodiment. The difference is that the switch module 44 further has a DC input port. 44a and a DC output port 44b. The DC input port 44a is electrically connected to the energy storage device 42, the energy storage device 42 outputs DC power to the DC input port 44a, and the switching module 44 transmits the DC power to the DC input port 44a. The direct current is transmitted to the direct current output port 44b for output. The mobile energy storage cabinet 38 further includes a DC charging device 40, which is electrically connected to the DC output port 44b, and converts the DC power output from the DC output port 44b into a DC charging power; further on the collector box 46 A charging connector 46a is provided, and the charging connector 46a is electrically connected to the DC charging device 40.

In this way, the charging connector 46a can be connected to an external facility (such as an electric vehicle) that needs to be charged, and the charging electric energy can be output to the external facility to supply power to the external facility. The charging power output by the DC charging device 40 can further adjust the voltage and current range of the charging power according to the power required by different external facilities (electric bicycles, electric motorcycles, or electric cars and electric buses) to meet different requirements. Electricity required by external facilities.

Please refer to FIG. 8, which is a mobile power supply system 400 according to the fourth preferred embodiment of the present invention. It is based on the third embodiment. The mobile energy storage cabinet 48 includes a plurality of solar panels 56 and an inverter. 58. The solar panels 56 are arranged above the cabinet 50; the inverter 58 is electrically connected to the solar panels 56, and the inverter 58 converts the direct current output from the solar panels 56 into alternating current output. The switching module 52 further has a second input port 52b electrically connected to the inverter 58 to receive the AC power output by the inverter 58, and then through the conversion module 54 to convert the AC power into DC power into the batteries 60 Recharge. In this embodiment, the switching module 52 can transmit the AC power input to both the first input port 52 a and the second input port 52 b to the conversion module 54. The solar panel 56 and the inverter 58 of this embodiment can also be applied to the mobile power supply system 100 of the first embodiment.

In practice, the switching module 52 can also choose to transmit the AC power input to one of the first input port 52a and the second input port 52b to the conversion module 54. In other words, it further includes a first charging mode and a first charging mode during the charging mode. A second charging mode. When the switching module 52 is operating in the first charging mode, it transmits the AC power of the first input port 52a to the conversion module 54; when the switching module 52 is operating in the second charging mode, it transfers the AC power from the first input port 52a to the conversion module 54; The AC power of the second input port 52b is transmitted to the conversion module 54.

The third and fourth embodiments described above can also be the same as the second embodiment in that one vehicle head corresponds to multiple mobile energy storage cabinets 38 and 48.

According to the above, the mobile power supply system of the present invention, through the detachable design of the front of the car and the mobile energy storage cabinet, can move the mobile energy storage cabinet to a place where power supply is needed to provide power, or move to a rechargeable Charging at a location makes the storage and supply of electricity more flexible. After the front of the vehicle is detachable from the bearing platform, you can leave the power supply location or the rechargeable location, so as to save space in these locations and improve the economic benefits of the front of the vehicle.

The above are only the preferred and feasible embodiments of the present invention. Any equivalent changes made by applying the specification of the present invention and the scope of the patent application should be included in the patent scope of the present invention.

[this invention] 100: Mobile power supply system 10: Mobile energy storage cabinet 12: Bearing platform 122: Wheel 124: Combination pin 14: Cabinet 142: Housing space 16: Energy storage device 162: battery pack 162a: battery 18: collector box 182: AC input connector 184: AC output connector 20: Power conversion device 22: Switch module 22a: first input port 22b: first output port 24: Conversion module 30: front 302: Combination seat 200: Mobile power supply system 32: mobile energy storage cabinet 34: carrying platform 36: front 300: Mobile power supply system 38: mobile energy storage cabinet 40: DC charging device 42: energy storage device 44: Switching module 44a: DC input port 44b: DC output port 46: Collector box 46a charging connector 400: Mobile power supply system 48: mobile energy storage cabinet 50: cabinet 52: switching module 52a: first input port 52b: second input port 54: conversion module 56: solar panel 58: inverter 60: battery

Figure 1 is a schematic diagram of a mobile power supply system according to a first preferred embodiment of the present invention. Figure 2 is a schematic diagram of the mobile energy storage cabinet with the front detachable of the above preferred embodiment of the present invention. Figure 3 is a schematic diagram showing the charging of the battery through the power supply facility. Figure 4 is a schematic diagram showing that the energy storage device supplies AC power to the external power grid via the conversion device. Figure 5 is a schematic diagram showing that the energy storage device supplies AC power to the external charging pile through the conversion device. Fig. 6 is a schematic diagram of a mobile power supply system according to a second preferred embodiment of the present invention. Fig. 7 is a schematic diagram of a mobile power supply system according to a third preferred embodiment of the present invention. Fig. 8 is a schematic diagram of a mobile power supply system according to a fourth preferred embodiment of the present invention.

100: Mobile power supply system

10: Mobile energy storage cabinet

12: Bearing platform

122: Wheel

14: Cabinet

142: accommodating space

16: Energy storage device

162: battery pack

162a: battery

18: Collector box

182: AC input connector

184: AC output connector

20: Power conversion device

22: Switch module

22a: The first input port

22b: The first output port

24: Conversion module

30: front

302: Combination seat

Claims (6)

A mobile power supply system, comprising: at least one mobile energy storage cabinet, including a bearing platform, a cabinet, an energy storage device and a power conversion device, wherein: the bearing platform is provided with a plurality of wheels; the cabinet body Set on the carrying platform, the cabinet has an accommodating space; the energy storage device is accommodated in the accommodating space of the cabinet, the energy storage device includes a plurality of accumulators; the power conversion device is accommodated in the cabinet In the accommodating space of the body, the power conversion device is electrically connected to the energy storage device; the power conversion device receives external AC power and converts DC power to charge the batteries of the energy storage device, and converts the DC power of the batteries into The AC power is output to the outside; a car head is detachably connected to the bearing platform, and the car head drives the at least one mobile energy storage cabinet to move; wherein, the power conversion device includes a switching module and a switch module that are electrically connected to each other. A conversion module, wherein the conversion module is electrically connected to the energy storage device, the switching module can be operated in one of a charging mode and a power supply mode, wherein, in the charging mode, the switching module Receive external AC power and transmit it to the conversion module. The conversion module converts the AC power into DC power to charge the batteries of the energy storage device; in the power supply mode, the conversion module converts the DC power of the batteries Is alternating current and transmitted to the switching module, and output from the switching module to the outside; wherein, the at least one mobile energy storage cabinet includes a collector box disposed in the cabinet; wherein, the switching module operates in In the charging mode, external AC power is transmitted from the collector box to the switching module; Wherein, when the switch module is operated in the power supply mode, the alternating current output by the switch module is output from the collector box to the outside. The mobile power supply system according to claim 1, wherein the switching module has a first input port and at least one output port, the first input port receives external AC power, and the at least one output port outputs the conversion module The AC power transmitted to the outside; wherein, the collector box has an AC input connector and at least one AC output connector, the AC input connector is electrically connected to the first input port, and the at least one AC output connector is electrically connected to the first input port. Is sexually connected to the at least one output port; wherein, when the switching module is operated in the charging mode, the AC input connector of the collector box receives external AC power and transmits it to the first input port; wherein, the switching module When operating in the power supply mode, the AC output from the at least one output port is output to the outside through the at least one AC output connector of the collector box. The mobile power supply system according to claim 1, wherein the switching module has a DC input port and a DC output port, the DC input port is electrically connected to the energy storage device, and the energy storage device outputs DC power to the DC input The switching module transmits the DC power transmitted to the DC input port to the DC output port for output; the at least one mobile energy storage cabinet includes a DC charging device, the DC charging device is electrically connected to the DC output port, the The DC charging device converts the DC power output from the DC output port into a DC charging power; the collector box has a charging connector which is electrically connected to the DC charging device to output the charging power. The mobile power supply system according to claim 2, wherein the at least one mobile energy storage cabinet includes a plurality of solar panels and an inverter, the solar panels are arranged above the cabinet; the inverter is electrically connected The solar panel, the inverter converts the direct current output from the solar panels into alternating current output, and the switching module has a second input port electrically connected to the inverter, To receive the AC power output by the inverter, the switching module transmits the AC power input to at least one of the first input port and the second input port to the conversion module. The mobile power supply system according to claim 4, wherein the switching module transmits alternating current input to both the first input port and the second input port to the conversion module. The mobile power supply system according to claim 1, wherein the number of the at least one mobile energy storage cabinet is plural, and the car head is detachably connected to the bearing platform of one of the mobile energy storage cabinets .

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