KR102401989B1 - A mobile charging system that combines alternating current single-phase and three-phase based on internal batteries to satisfy both fast charging speed and charging accessibility - Google Patents

Abstract

A mobile charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing single-phase and three-phase alternating current based on the built-in battery of the present invention,
In user authentication, without using external standby power, micro-current limiting device, or USB terminal, the battery power of the built-in battery provided in the portable charger is used as power for user authentication. To provide a mobile charging system that can be equipped with a strong security function by applying a limiting factor.
Accordingly, the mobile charging system that satisfies both fast charging speed and charging accessibility by mixing single-phase and three-phase AC based on the built-in battery according to an embodiment of the present invention is a mobile power demand that enables rapid charging and slow charging with a single device. As a charging system of the device, a three-phase power socket for rapid charging and a single-phase power socket for slow charging are integrally provided, and an authentication outlet that is driven by power for user authentication and supplies three-phase power and single-phase power by user authentication ; And a three-phase power plug for rapid charging and a single-phase power plug for slow charging are integrally provided, and one end is connected to the authentication outlet to receive the three-phase power and the single-phase power, and the other end is a connector of a power demand device A mobile charger connected to the to supply charging current; includes, but the mobile charger is characterized in that it further includes a built-in battery and capable of using battery power as power for authentication.

Description

A mobile charging system that combines alternating current single-phase and three-phase based on internal batteries to satisfy both fast charging speed and charging accessibility}

The present invention relates to a mobile charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing single-phase and three-phase alternating current based on a built-in battery. Two types of outlets for charging and slow charging are integrated, and two types of plugs for quick charging and slow charging are integrated to correspond to this, and external power is used for user authentication. It relates to a portable charging system with improved security as well as being able to use it regardless of location and external power source by performing the authentication procedure using the battery built into the charger without doing so.

More specifically, the mobile charging system that satisfies both fast charging speed and charging accessibility by mixing AC single-phase and three-phase AC based on the built-in battery of the present invention is the In the process of going through the authentication process, the power of the battery built into the power intermediary module in the portable charger is used as power for user authentication, so the standby power of the authentication outlet is not used, so unnecessary power consumption does not occur. By not using a micro-current or power from a smart device connected to the USB terminal, it does not have a micro-current limiting device or UBS terminal. It is a device that provides optimized power supply while maintaining a high level of security by preventing behavior and exposure of user information. It relates to a portable charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing single-phase and three-phase alternating current based on a built-in battery, which can rapidly increase operational efficiency and ease of use of eco-friendly portable charging devices.

Power demand devices that must be charged using a large amount of electricity, particularly mobile power demand devices such as electric vehicles, are increasing. Such power demand devices sometimes require the owner of the power demand device to receive power from a place they do not own or reside. For this reason, for example, for an electric vehicle, a user who enables the vehicle owner to connect to an electrical outlet and receive power from a place he does not own or reside, for example at a public electric charging station, a shopping mall or an apartment parking lot. Power supply devices such as outlets, electric vehicle chargers, and connectors with built-in authentication functions have been developed.

However, in order for a user to receive authentication for charging electricity for a mobile power demand device such as an electric vehicle, it is necessary to connect an electric vehicle to an electrical outlet for authentication and use it to receive authentication power, so standby power is required. In some cases, a small current in a certified outlet or a battery in a portable charger is used to solve this problem, but due to the fact that a micro current limiter or UBS terminal is provided, there is also a problem of relatively poor security. can be

In addition, since these power supply devices are separately equipped and operated for rapid charging and slow charging, users who own a mobile power demand device are inconvenient to always have a mobile charging device for fast charging and slow charging, respectively. There is this.

Moreover, in the same time period when the user wants to charge the power demand device, fast charging and slow charging are not efficiently distributed and set according to the power supply and demand situation, but fast charging or slow charging depending on the components of the charging facility where the user is located. It is operated as a system that determines whether or not

Therefore, it is a relatively simple facility that can utilize the existing power distribution system as it is, does not require space expansion or set up a new space, and can check the power supply and demand status in real time to support charging as quickly as possible. There is a need for an improvement plan for the simultaneous use of fast charging and slow charging that can be built through supplementation.

In addition, unauthorized use of electric power by unauthorized users, which may occur in the power supply facility, and an ambiguous and error-prone billing system, etc., should be promptly improved for the dissemination of eco-friendly electric vehicles.

In addition, the need for portable chargers using general outlets is rapidly increasing due to the limitation of the number of fixed chargers installed in buildings such as apartments.

Republic of Korea Patent Publication No. 10-2012-0109914 Korean Patent Publication No. 10-2012-0012922

The present invention was created to solve the problems in the prior art, and in the process of user authentication when charging a power demand device, the power of the built-in battery provided in the power intermediary module in the charger is used for user authentication. By using it as a power source, it does not use standby power to provide power for authentication, so it is possible to prevent unnecessary power consumption and problems due to indefinite billing. The purpose of this is to provide a mobile charging system that can apply many restrictions to enable a stronger security action as it can only be used in

In addition, rapid charging and slow charging allow charging of power demand devices through a single integrated device, thereby increasing user convenience and efficient mobile charging power supply and demand, as well as a sharp decrease in costs due to infrastructure expansion, and a rapid increase in charging facilities. The maximum charging current is set from the server in consideration of the power supply and demand situation, and charging power is supplied through the charging current automatically without user intervention, so that user convenience and safety can be improved, and the main power supply status is stable. An object of the present invention is to provide a device capable of rapidly and stably charging a plurality of power demanding devices while maintaining the current state, and simplifying and automating the charging process for power use related to charging of the power demanding devices.

The above objects and various advantages of the present invention will become more apparent from preferred embodiments of the present invention by those skilled in the art.

The present invention is to achieve the above object,

A mobile charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing AC single-phase and three-phase AC based on a built-in battery according to an embodiment of the present invention is a mobile power demand device capable of fast charging and slow charging with a single device. A charging system comprising: an authentication outlet having a three-phase power socket for rapid charging and a single-phase power socket for slow charging integrally provided, driven by power for user authentication, and supplying three-phase power and single-phase power by user authentication; And a three-phase power plug for rapid charging and a single-phase power plug for slow charging are integrally provided, and one end is connected to the authentication outlet to receive the three-phase power and the single-phase power, and the other end is a connector of a power demand device A portable charger connected to the to supply charging current; includes, but the portable charger has a built-in battery and further includes that the battery power can be used as power for authentication.

According to one embodiment, the authentication outlet is provided with a three-phase switchgear which is a three-phase power circuit and a single-phase switchgear which is a single-phase power circuit, and in order to supply or cut off power to the outside from the main power source, the three-phase switchgear or the single-phase switchgear a power relay unit for controlling connection or short circuit; an outlet terminal provided in a shape in contact with the mobile charger and receiving authentication power for user authentication and an authentication outlet operation code from the mobile charger; an outlet power supply unit in which the three-phase power socket and the single-phase power socket are integrally provided and are provided in a shape in contact with the mobile charger, and supply the three-phase power or the single-phase power to the outside; and an outlet control unit driven by the authentication power and storing the authentication outlet ID to determine whether it corresponds to the authentication outlet operation password.

According to an embodiment, the mobile charger includes an authentication plug and a power intermediary module, the authentication plug is connected to the outlet terminal to transmit and receive the authentication outlet ID and the authentication outlet operation password, and the authentication power a plug terminal that transmits; It is connected in a shape corresponding to the outlet power supply, and is provided with a three-phase power plug and a single-phase power plug integrally, and a plug power supply unit for receiving three-phase power and single-phase power;

The power intermediary module provides the authentication power to the authentication outlet, transmits the authentication outlet ID to the intermediary server, and receives the authentication outlet operation password from the intermediary server and transmits it to the authentication outlet. Charger control unit ; a wireless communication unit for allowing the charger control unit to access the intermediate server and a public network such as the Internet as a medium; a power relay metering unit connected to the plug power supply unit, receiving the authentication power and transmitting it to the charger control unit, receiving the three-phase power supply and the single-phase power supply unit and providing it to a power demand device; and a connector terminal connected to the power relay metering unit to transmit power to the power demand device via a connector.

According to one embodiment, the outlet control unit receives the set value of the charging current allowed to be used in the user's power demand device from the intermediary server, and transmits it to the power relay unit, and the power relay unit sets the charging current Depending on the value, it includes connecting or shorting a three-phase switchgear or a single-phase switchgear.

According to an embodiment, the authentication outlet is provided with a USB terminal and a smart device is connected to use the power of the smart device as power for authentication, and the authentication outlet is provided with a microcurrent limiting device and a microcurrent when the portable charger is connected. It generates and further includes that which can be used as power for authentication.

The details of other embodiments are included in the detailed description and drawings.

According to the portable charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing single-phase and three-phase alternating current based on the built-in battery of the present invention, the following effects can be obtained.

First, by using the power of the internal battery provided in the charger in the process of user authentication in the charging of the power demand device, standby power is not required, so unnecessary power consumption and billing arbitration can be prevented.

Second, since a micro-current generating device or USB terminal for user authentication is not installed, the device of the present invention can be composed only of genuine parts, so that many limiting factors that can be used only between genuine parts can be set, resulting in a stronger security action it can be possible

Third, rapid charging and slow charging can be performed through a single integrated device, so user convenience and safety can be increased, and charging infrastructure can be expanded by solving the problem of insufficient space for charging infrastructure and reducing costs due to infrastructure expansion. This can increase charging convenience and accelerate the spread of electric vehicles.

Fourth, it is possible to prevent unnecessary power consumption and challenging behavior by not consuming standby power while maintaining security, and to simplify and automate the billing process for power use related to charging of power demanding devices.

Fifth, only by connecting this plug of the portable charging device to an outlet, the maximum charging current is allocated in consideration of the power supply and demand situation without user intervention, and based on this, the automatic control of the electronic switch is made, thereby greatly improving user convenience and safety.

1 is a diagram illustrating a configuration using a microcurrent as power for authentication according to an embodiment of the present invention.
2 is a diagram illustrating a configuration in which power of a smart device having a USB terminal and connected to the USB terminal is used as power for authentication, according to an embodiment of the present invention.
3 is a diagram illustrating a configuration in which an internal battery is used as power for authentication according to an embodiment of the present invention.
4 is a flowchart for explaining a charging procedure using a microcurrent as power for authentication according to an embodiment of the present invention.
5 is a flowchart illustrating a charging procedure using power of a smart device connected to a USB terminal as power for authentication, according to an embodiment of the present invention.
6 is a flowchart illustrating a charging procedure using an internal battery as power for authentication according to an embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structural or functional descriptions are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be modified and implemented in various forms. and the scope of the present invention should not be construed as being limited to the embodiments described in detail below.

In addition, since the embodiment according to the concept of the present invention may have various changes and may have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

However, this is not intended to limit the embodiments according to the concept of the present invention to the specific disclosed form, and it should be understood that all modifications, equivalents and substitutes included in the spirit and scope of the present invention are included.

This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description.

It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

1 is a diagram showing a configuration using a microcurrent as power for authentication according to an embodiment of the present invention, and FIG. 2 is a USB terminal 111 according to an embodiment of the present invention, and a USB terminal It is a diagram showing a configuration using the power of the smart device connected to 111 as power for authentication, and FIG. 3 is a diagram showing a configuration using the internal battery 461 as power for authentication in an embodiment of the present invention.

4 is a flowchart for explaining a charging procedure using a microcurrent as power for authentication in an embodiment of the present invention, and FIG. 5 is a smart device connected to the USB terminal 111 in an embodiment of the present invention. It is a flowchart for explaining a charging procedure using power for authentication as power for authentication, and FIG. 6 is a flowchart for explaining a charging procedure using the internal battery 461 as power for authentication, according to an embodiment of the present invention.

A portable charging system that simultaneously satisfies fast charging speed and charging accessibility by mixing AC single-phase and 3-phase AC based on a built-in battery according to a preferred embodiment of the present invention includes an authentication outlet 100 and a portable charger 200 characterized by being

The authentication outlet 100 of the present invention is an outlet terminal 110, an outlet control unit 120, a power relay unit 130, an outlet power unit 140, a micro-current limiting device 150, a normally closed relay, 151) is characterized in that it is comprised,

The mobile charger 200 of the present invention is characterized in that it is configured to include an authentication plug 300 and a power intermediary module 400 .

At this time, the authentication plug 300 may be configured to include a plug terminal 310 and a plug power supply unit 320 , and the plug power supply unit 320 includes a single-phase power plug 321 and a three-phase power plug 322 . is composed by

In addition, the power intermediary module 400 may be configured to include a charger control unit 410 , a power relay metering unit 420 , a wireless communication unit 430 , a connector terminal 440 , and a display unit 450 .

As the biggest feature according to an embodiment of the present invention, the power relay unit 130 and the outlet power unit 140 of the authentication outlet 100, the plug power unit 320 of the authentication plug 300, the power intermediary The power relay metering unit 420 of the module 400 is configured to include a module for receiving and processing three-phase power and single-phase power at the same time.

Accordingly, an integrated charging device capable of selectively performing rapid charging and slow charging through a single facility is provided, and the selection of rapid charging and slow charging further includes a feature that is automatically determined through the outlet control unit 120 without user intervention. .

The authentication plug 300 of the mobile charger 200 of the present invention is configured to include a 3-phase 5-pin type plug for rapid charging and a single-phase 3-pin type plug for slow charging integrally.

In addition, in response to the shape of the authentication plug 300, the outlet power unit 140 of the authentication outlet 100 is configured to include a 3-phase 5-pin type socket for rapid charging and a single-phase 3-pin type socket for slow charging in one piece.

In the case of existing outlets, a 3-phase 5-pin socket for rapid charging and a single-phase 3-pin socket for slow charging are separately configured according to the nature of each infrastructure such as a charging place, for example, an electric vehicle charging station or a building such as an apartment building.

Accordingly, the existing mobile charger 200 also had the inconvenience of having to separately provide a 3-phase 5-pin type plug for fast charging and a single-phase 3-pin type plug for slow charging.

In addition, since the authentication outlet 100 is selectively installed and operated for each facility for convenience, regardless of the number of users who want power demand or the type of power demand device 600, it is rapidly Charging may not be possible.

In addition, if you want to operate the authentication outlet 100 for fast charging and slow charging in the same place, it is difficult to implement due to cost and space barriers because separate wiring and space over a specific area are required.

However, according to the present invention, while using the power line of the existing main power supply 10 as it is, the authentication outlet 100 can be configured as an integral type supporting both three-phase and single-phase, and the user can use the power line of the existing main power supply 10 as it is. Only the mobile charger 200 equipped with the authentication plug 300 can selectively operate fast charging and slow charging under optimal conditions depending on the power situation.

In this case, the selective operation of fast charging and slow charging does not mean a manual mode in which a specific power source is selected according to user intervention.

This prioritizes rapid charging, but considering the power operation situation of the main power supply 10 and the availability of power such as simultaneous connection users, the charger control unit 410 and the authentication outlet 100 built into the mobile charger 200 It means that it is automatically determined by the outlet control unit 120 provided in the .

In addition, the automatic control for each power supply and demand situation as described above may be configured including that the user can variably operate through the setting of a set value according to the charging system, the type of the power demand device 600, the future charging plan, etc. in advance. can

The authentication outlet 100 according to the present invention may be externally configured to include a 3-phase 5-pin socket and a single-phase 3-pin socket arranged side by side.

In this case, the authentication outlet 100 may have a shape of a connector, such as a cable built into the wall of the building or extending from the wall of the building to the outside, and there is no restriction on the shape of the location.

The authentication plug 300 according to the present invention is configured to include a 3-phase 5-pin plug and a single-phase 3-pin plug arranged side by side in correspondence with the shape of the authentication outlet 100 .

Therefore, when the authentication plug 300 is coupled to the authentication outlet 100, it can be specified that the three-phase power and the single-phase power are simultaneously formed and electrically coupled.

On the other hand, the selection of three-phase power and single-phase power is automatically made without user intervention through the authentication procedure of the external intermediary server 700 through the charger control unit 410 of the power intermediary module built in the mobile charger 200, It will be described in detail through the following description of the operating principle of the present invention.

Hereinafter, after a charging method using a microcurrent as authentication power according to an embodiment of the present invention is described as a whole, the order for each component including the function of the integrated charging device of three-phase power and single-phase power and the user authentication procedure to be explained as

The authentication outlet 100 of the present invention is, as described above, the outlet terminal 110, the outlet control unit 120, the power relay unit 130, the outlet power unit 140, the micro-current limiting device 150, the normally closed relay ( Normal Closed Relay, 151) may be included.

The authentication outlet 100 of the present invention determines whether or not to provide power by authenticating whether a user who wants to receive power through the power demand device 600 such as a mobile charging device has a suitable path and qualifications, and the main power supply (10) It is a power supply device having a function of supplying power to the user's power demand device 600 from the.

In this case, the main power source 10 includes, for example, a power source based on an electric vehicle charging station or an electric vehicle charging system of an assembly building.

The authentication outlet 100 according to the present invention can be applied not only to electric vehicles but also to all power demand devices 600 that require charging using a large amount of power, and clarify security and billing through the user authentication procedure and challenge It means a power supply with a function to prevent it.

In the standby state of the authentication outlet 100 , that is, in the initialization state, the power relay unit 130 is in an OFF state, and the microcurrent limiting device 150 is in an ON state.

In addition, in a state in which the authentication plug 300 is not coupled to the authentication outlet 100 , since the entire circuit is not a closed loop, a microcurrent does not flow, and the user inserts the authentication plug 300 into the authentication outlet 100 . When connected, the inside of the authentication outlet 100 that was in the disconnected state is converted into a closed loop state in which the entire circuit is connected.

At this time, a minute current comes out from the main power supply 10 and flows to the single-phase power socket 141 of the outlet power supply unit 140 through the micro-current limiting device 150 that is in an ON state.

The microcurrent is used as authentication power to authenticate the user's mobile charger 200 in the standby state.

The microcurrent moves to the single-phase power plug 321 of the plug power unit 320 of the portable charger 200 through the single-phase power socket 141 of the outlet power unit 140, and the charger control unit of the power intermediary module 400 ( 410) is supplied.

The charger control unit 410 requests the authentication outlet 100 ID information from the outlet control unit 120 of the authentication outlet 100 through a microcurrent.

The outlet control unit 120 is driven by a small current, which is power for authentication, and transmits the ID of the authentication outlet 100 to the plug terminal 310 of the mobile charger 200 .

The ID of the authentication outlet 100 received at the plug terminal 310 is sent to the charger control unit 410 of the power intermediary module 400, and the charger control unit 410 is an external intermediary server through the wireless communication unit 430. While transmitting the ID of the corresponding authentication outlet 100 and the ID of the mobile charger 200 to 700, the operation password of the authentication outlet 100 and the available charging current setting are requested.

When it is determined that the power supply to the user is permitted based on the ID information, the intermediary server 700 transmits the operation password of the authentication outlet 100 to the authentication outlet 100 through the mobile charger 200 .

In addition, the mediation server 700 confirms the specifications of the power mediation module 400 of the authentication outlet 100 and the mobile charger 200, and the type of charging current that the user can receive in consideration of the power supply and demand situation. to set

The intermediary server 700 transmits the operation password of the authentication outlet 100 to the mobile charger 200 and at the same time transmits the type of charging current allowed to the user and a charging start command to the mobile charger 200 .

The mobile charger 200 transmits the authentication outlet 100 ID and the charging current type received from the intermediary server 700 to the authentication outlet 100, and the outlet control unit 120 of the authentication outlet 100 is the outlet terminal 110 ) to receive the information.

If the operation password of the authentication outlet 100 received through the mobile charger 200 corresponds to the authentication outlet 100 ID information, the outlet control unit 120 is charged power through the mobile charger 200 to the power demand device ( 600) to be supplied.

The outlet control unit 120 first turns on the power relay unit 130, which is in an OFF state, in order to supply power to the power demand device 600 from the main power source 10 .

At this time, the outlet control unit 120 immediately after turning on the power relay unit 130, a normally closed relay (Normal Closed Relay, 151) connected to the input terminal or output terminal of the micro-current limiting device 150 is open (open) That is, by switching to the off (off) state, it serves to block and protect the excessive amount of power flowing into the micro-current limiting device (150).

In addition, the outlet control unit 120 controls the power relay unit 130 based on the type of charging current received from the mediation server 700 and the charging start command.

The power relay unit 130 selectively opens and closes the three-phase power source and the single-phase power source according to the type of charging current received through the outlet control unit 120 .

That is, for example, if 32A three-phase charging current for rapid charging is set and a charge command is received, the power relay unit 130 closes the three-phase switch 132 to the three-phase power socket 142. The charging current is supplied, and the single-phase switch 131 is opened at the same time to block the flow of current through the single-phase switch 131 .

Conversely, if the 16A single-phase charging current for slow charging is set and a charging command is received, the power relay unit 130 closes the single-phase switch 131 to supply the charging current to the single-phase power socket 141, At the same time, the three-phase switch 132 is opened to block the flow of current through the three-phase switch 132 .

As a third example, when 32A single-phase charging current is set and a charging command is received, the power relay unit 130 closes the single-phase common part of the three-phase switch 132 and charges the charging current to the three-phase power socket 142 . supply, and at the same time open the single-phase switch 131 to block the flow of current through the single-phase switch 131

The authentication plug 300 of the mobile charger 200 transmits the fast or slow charging current received from the outlet power unit 140 to the connector terminal 440 through the power relay metering unit 420 .

When the mobile charger 200 to which the power demand device 600 is connected is connected, the micro-current limiting device 150 generates a micro-current and supplies it to the mobile charger 200 .

The microcurrent may be a low current of several tens of mA or less, and is used as power for authentication. Power for authentication may be used for a signal requesting an ID of the authentication outlet 100 .

When the power demand device 600 is disconnected from the authentication outlet 100, the micro-current limiting device 150 may be configured not to generate a micro-current any more, preferably for the power demand device 600 When the power supply procedure is in progress, the outlet control unit 120 may block the flow of micro-current for protection of the micro-current limiting device 150 .

Since the microcurrent does not flow when the mobile charger 200 is not connected to the authentication outlet 100 , standby power consumption in the authentication outlet 100 does not occur.

The micro-current limiting device 150 may be implemented inexpensively and simply by connecting two resistors in parallel in one embodiment.

The micro-current limiting device 150 may be implemented as a resettable fuse in another embodiment. An example of the resettable fuse is a polyswitch, which is an electronic device manufactured by Reychem of the United States. Polyswitch is in a very low resistance (0~5ohm) state, and when an overcurrent flows into the circuit, it changes to a high resistance by Joule heat caused by the overcurrent. In this way, when the polyswitch changes to a fixed term, the circuit is opened and the polyswitch acts like a fuse. The difference from general fuses is that resettable fuses can be reused as they return to a low resistance state when the cause of overcurrent is removed. In the present invention, the poly switch may be selected to have an allowable power capable of limiting the magnitude of the microcurrent to several tens of mA or less. For example, a polyswitch having an allowable power of 20W or less may be selected.

On the other hand, according to this configuration, the microcurrent can be completely controlled, but when the power for authentication is not temporarily supplied due to an external shock during charging, the power relay unit 130 is turned off, but in the power demand device 600 , Since the large power is being charged, the amount of power has inertia and the large power is in a state to be supplied through the micro-current limiting device 150 .

At this time, hundreds to thousands of times the limit power is instantaneously supplied to the micro-current limiting device 150, and the micro-current limiting device 150 blocks it.

However, there is a fear that the micro-current limiting device 150 may be permanently burned out by a wattage storm that is several hundred to several thousand times the allowable amount, and thus may not operate as a normal function.

Therefore, a normally closed relay (151) is additionally provided in the microcurrent limiting device 150, and the relay is closed (close), that is, while maintaining the On state when power for control is not supplied. , when the supply procedure of charging power is started, power for control is supplied to the normally closed relay (Normal Closed Relay, 151) and switched to an open, that is, off state, thereby reducing the burnout of the micro-current limiting device 150. can be prevented

On the other hand, electrical safety is ensured by completely blocking the current of several tens of mA flowing to the single-phase power socket 141, where the power use for authentication has ended, so that the three-phase power socket 142 and the single-phase power socket 141 cannot be used at the same time. can

On the other hand, according to a special embodiment of the present invention,

The outlet control unit 120 operates by receiving power for authentication from the mobile charger 200 .

The mobile charger 200 receives a micro-current from the authentication outlet 100, converts the micro-current into power for authentication, and then through the plug terminal 310 of the mobile charger 200, the authentication outlet 100 outlet of It is transmitted to the terminal 110 , and the outlet control unit 120 receives power for authentication through the outlet terminal 110 .

Specifically, the outlet control unit 120 receives the authentication power generated and delivered under the control of the charger control unit 410 of the mobile charger 200, that is, the authentication outlet 100 ID request signal, and the authentication outlet 100. In response to the ID request signal, the authentication outlet 100 transmits ID information to the plug terminal 310 through the outlet terminal 110 .

Here, the authentication outlet 100 ID verification procedure, in addition to the above method, attaching an RFID tag or NFC tag to the authentication outlet 100, and installing an RFID reader or NFC reader in the mobile charger 200, the authentication outlet ( 100) may be performed in a manner of directly reading ID information from.

In addition, when the authentication outlet 100 transmits a flexible key value together with the authentication outlet 100 ID information to the mobile charger 200, security can be further strengthened.

On the other hand, in the present invention, the role of the outlet control unit 120, unlike the existing user authentication outlet or connector, is not limited to obtaining ID information of the authentication outlet 100 and opening/closing the power supply through it.

The outlet control unit 120 receives the set value of the charging current to be supplied to the power demand device 600 set by the intermediary server 700 through the mobile charger 200 connected to the authentication outlet 100 as a medium, The authentication outlet 100 is controlled so that charging power can be supplied with the set charging current.

The outlet control unit 120 is a three-phase switchgear and a single-phase switchgear 131 of the power relay unit 130 according to the set value of the received charging current when the operation password of the received authentication outlet 100 corresponds to its ID. Adjust the open and close so that the appropriate charging power is supplied.

That is, if 32A three-phase charging current for rapid charging is set in the user's power demand device, the outlet control unit 120 closes the three-phase switch 132 to supply charging power, and vice versa, 16A single-phase charging for slow charging If the current is set, the outlet control unit 120 closes the single-phase switch 131 to supply charging power.

In addition, if 32A single-phase charging current is set, the outlet control unit 120 partially closes the single-phase common part of the three-phase switch 132 to supply charging power.

The power relay unit 130 is configured to include a three-phase switch 132, which is a passage for supplying single-phase or three-phase power, and a single-phase switch 131, which is a passage for supplying single-phase power.

In the standby state, the power relay unit 130 is in an OFF state, and the three-phase switch 132 and the single-phase switch 131 of the power relay unit 130 are in an open state and the power supply is cut off. keep

The power relay unit 130, after the outlet control unit 120 receives the operation password of the authentication outlet 100 and the set value of the charging current to be supplied from the external intermediary server 700, by the control of the outlet control unit 120 can be driven

That is, when the power relay unit 130 is turned on in the outlet control unit 120 according to the set value of the charging current and a signal corresponding to the set value of the charging current is transmitted, the three-phase switchgear 132 or the single-phase switchgear As 131 is closed, the circuit is connected to supply power.

After the three-phase switch 132 or the single-phase switch 131 of the power relay unit 130 is closed once, using a part of the DC power supplied from the plug terminal 310 or the AC power supplied from the main power supply 10 , the three-phase switchgear 132 or the single-phase switchgear 131 can be maintained closed. As an example, according to the specification of the three-phase switchgear 132 or the single-phase switchgear 131, AC power may be used to control the three-phase switchgear 132 or the single-phase switchgear 131. In this case, the main power supply 10 Since it is possible to keep the three-phase switch 132 or the single-phase switch 131 closed by using a portion of the AC power from

In other words, the outlet control unit 120 is operated by DC power, but in comparison, the three-phase switchgear 132 or the single-phase switchgear 131 is triggered by receiving DC power from the outside and is then driven by AC power. this can be maintained.

When the three-phase switchgear 132 or the single-phase switchgear 131 is maintained closed by using the DC power supplied from the outlet terminal 110, the portable charger 200 is disconnected from the authentication outlet 100. When the plug DC power for controlling the three-phase switch 132 or the single-phase switch 131 is not supplied from the terminal 310, so that the three-phase switch 132 or the single-phase switch 131 is opened.

On the other hand, in the case of maintaining the closing of the three-phase switchgear 132 or the single-phase switch 131 using a part of the AC power supplied from the main power source 10, the mobile charger 200 is separated from the authentication outlet 100. When the circuit to which the main power supply 10 is supplied is opened, AC power can no longer be supplied from the main power source 10, so that the three-phase switchgear 132 or the single-phase switchgear 131 is opened.

In addition, when the mobile charger 200 is disconnected from the authentication outlet 100, when the DC power is triggered and then the main power is maintained to operate, the periodic oscillation of the DC power or other signals is detected and the periodic oscillation is It can be turned off when the undetected limit set time is exceeded.

On the other hand, the power relay unit 130 may be configured to include three types of switchgear, such as a single-phase switchgear 131 for 16A, a three-phase switchgear 132 for 32A, and a single-phase common part of the three-phase switchgear 132 for 32A. have.

This is for a case in which, among the power demand devices 600, single-phase power is used, but the external shape is provided with a 5-pin plug, that is, each having a single-phase 3-pin type, 3-phase 5-pin type, and single-phase 5-pin type plug. This is to maintain compatibility while coping with power supply to all of the power demand devices 600 .

At this time, the single-phase switchgear 131 for 16A is connected to the single-phase power socket 141 having a single-phase 3-pin type, and the 3-phase switch 132 for 32A is a 3-phase power socket 142 having a 3-phase 5-pin type. It is connected to two phases (eg S (L2), T (L3)), and the single-phase common part of the three-phase switch 132 for 32A is one phase (eg, R) of the three-phase power socket 142 . (L1)) is connected.

In this case, the neutral wire is connected only to the single-phase common portion of the single-phase switch 131 for 16A and the three-phase switch 132 for 32A. The ground wire is always connected to all power sockets.

Therefore, when supplying charging power to the three-phase power supply for 32A for rapid charging, that is, the three-phase power socket 142, the three-phase switch 132 for 32A must be completely closed and connected to the three-phase power supply to the three-phase power socket ( 142) will be supplied.

In addition, in the case of the power demand device 600 that uses a single-phase power source but has a 5-pin type and is based on high-capacity power charging, the single-phase switch 131 for 16A and the three-phase switch 132 for 32A are open It is characterized in that the charging power is supplied through the three-phase power socket 142 only by the state of maintaining the closing of the single-phase common part of the three-phase switch 132 for 32A without an additional closing operation in the state.

The mobile charger 200 of the present invention has one end connected to the authentication outlet 100 and the other end connected to a power demand device 600 such as an electric vehicle, and an authentication plug 300 and a power intermediary module 400. is comprised of

The authentication plug 300 includes a plug terminal 310, a plug power unit 320, and the power intermediary module 400 is a charger control unit 410, a power relay metering unit 420, a wireless communication unit 430, a connector It may be configured to include a terminal 440 and a display unit 450 .

The plug power supply unit 320 of the authentication plug 300 is composed of a single-phase power plug 321 and a three-phase power plug 322, and externally, a single-phase 3-pin plug and a 3-phase 5-pin plug are integrally provided, It has a shape corresponding to the single-phase power socket 141 (single-phase 3-pin socket) and the 3-phase power socket 142 (3-phase 5-pin socket) of the power outlet 140 of the authentication outlet 100 .

The authentication plug 300 generates a microcurrent while being coupled to the authentication outlet 100, and the plug terminal 310 transmits the microcurrent received from the authentication outlet 100 to the authentication outlet 100 as power for authentication. function.

In addition, the plug terminal 310 of the authentication plug 300 receives the authentication outlet 100 ID information from the authentication outlet 100 and provides it to the charger control unit 410 , and the plug power supply unit 320 is from the main power supply 10 . It serves as a passage for providing the provided charging power to the power demand device 600 via the power relay metering unit 420 of the power intermediary module 400 .

Meanwhile, the plug terminal 310 of the authentication plug 300 may be connected to the outlet terminal 110 of the authentication outlet 100 by wire or wirelessly, according to an embodiment of the present invention.

For example, the plug terminal 310 wirelessly transmits power for authentication to the outlet terminal 110 , and is implemented in the form of a wireless power transmission and information transmission/reception unit capable of wirelessly transmitting and receiving information with the outlet terminal 110 . can be

Correspondingly, in the case of a wireless connection, the outlet terminal 110 wirelessly receives power for authentication from the plug terminal 310 , and wirelessly receives and transmits wireless power capable of transmitting and receiving information to and from the plug terminal 310 . It may be implemented in the form of a unit.

The wireless information transmission/reception unit may be used in a combination of at least one of an electromagnetic wave type and an optical type.

The charger control unit 410 supplies power for authentication to the outlet control unit 120, requests and receives authentication outlet 100 ID information, and obtains a set value of authentication outlet 100 operation password and charging current from the intermediary server 700, etc. to control

In addition, the charger control unit 410 serves to supply charging power to the power demand device 600 , while transmitting information necessary for billing processing for power use to the intermediary server 700 .

On the other hand, the charger control unit 410 downloads the authentication outlet 100 password to be used next time at the end of the authentication sequence from the intermediary server 700 according to an embodiment of the present invention, and transmits it to the outlet control unit 120 to be stored. can be With this configuration, it is possible to prevent password leakage due to the use of a fixed password.

That is, since the intermediary server 700 and the outlet control unit 120 can compare the floating password with each other, if a new password to be used next time is not input, the charging start becomes impossible, and accordingly, the password leakage prevention function can be strengthened.

Alternatively, according to another embodiment of the present invention, the authentication outlet 100 operation password may be obtained from the database built in the mobile charger 200 or the power demanding device (600).

However, if the number of authentication outlets 100 increases, it may be difficult to store all authentication outlets 100 operation passwords inside the mobile charger 200 or the power demand device 600 . Therefore, it is preferable to configure the mobile charger 200 to obtain the authentication outlet 100 operation password from the intermediate server 700 located outside through the wireless communication unit 430 in the authentication outlet 100 operation password acquisition process.

Thus, when the authentication outlet 100 from the outside to obtain the operation password, the intermediate server 700 is provided and can reduce the risk of leakage of the operation password, which may occur when not managed separately, the entire authentication outlet 100 can be reduced.

The power relay metering unit 420 opens and closes the power supplied from the authentication outlet 100 via the plug power unit 320 and measures the amount of power. The metered power is supplied to the power demand device 600 connected to the mobile charger 200 by the connector 500 .

At the same time, the measured amount of power information is transmitted to the charger control unit 410, and based on the amount of power measured according to the control of the charger control unit 410, through wireless communication through the wireless communication unit 430, the intermediary server 700 The information on the amount of power to be charged to the power demand device 600 is transmitted.

The display unit 450 may be built-in to the mobile charger 200 or may be provided as a separate external product.

The display unit 450 may display a communication state between the mobile charger 200 and the intermediary server 700 and a charging state.

In this case, the communication state means the data transmission/reception state between the mobile charging device and the intermediary server 700, whether the ID transmission and normal reception of the authentication outlet 100, and the operation password transmission of the authentication outlet 100 And whether normal reception or not, the charging current set value allocated to the mobile charging device from the intermediary server 700, the power billing cost, etc. may be included.

In addition, the charging status may include a real-time charging step, remaining amount of charging, charging speed, classification of charging power, and the like.

On the other hand, according to an embodiment of the present invention, the connector 500 for connection to the power demand device 600 such as an electric vehicle and the power intermediary module 400 of the mobile charger 200 are implemented in an integrated form. can

According to this implementation form, since the power intermediary module 400 is embedded in the connector 500, the risk of damage, flooding, theft, etc. of the power intermediary module 400 can be reduced. In addition to this, a mechanical and electronic locking device for theft prevention may be built in the power intermediary module 400 in the form of a connector 500 .

In addition, according to another embodiment of the present invention, the authentication plug 300 and the power intermediary module 400 may be implemented in a mutually independent form using a cable or an intermediate connector. In this case, for charging, after connecting the authentication plug 300 to the power intermediary module 400 , the user may connect the authentication plug 300 to the authentication outlet 100 .

On the other hand, the power intermediary module 400 is built in a power demand device represented by an electric vehicle, and it is also possible to replace the internal battery 461 with an existing battery of the power demand device 600 .

A charging process using a microcurrent as power for authentication according to an embodiment of the present invention is as follows, and FIG. 4 is a flowchart for explaining the process.

In step S100, the process of connecting the authentication plug 300 to the authentication outlet 100 and the power demand device 600 and the connector 500 are connected is performed.

In step S110, a process of generating a small current and supplying it from the main power supply 10 through the microcurrent limiting device 150 is performed.

In step S120, a small current flows and is supplied to the power intermediary module 400, and the power intermediary module 400 converts the microcurrent into authentication power and uses the same.

In step S130, a process of obtaining the authentication outlet 100 ID information transmitted by the power intermediary module 400 from the authentication outlet 100 is performed.

In step S140, the power intermediary module 400 transmits the authentication outlet 100 ID and the ID of the mobile charger 200 to the intermediary server 700, and the process of requesting the authentication outlet 100 operation password is performed.

In step S150, the intermediate server 700 transmits the authentication outlet 100 operation password to the power brokerage module 400 is performed.

In step S160, a process of confirming the specifications of the authentication outlet 100 and the power intermediary module 400 in the intermediary server 700 is performed.

In step S170, a process of setting a charging current to be supplied to the user's power demand device 600 in the intermediary server 700 and transmitting a charging start command is performed.

In step S180, a process of supplying charging power from the main power supply 10 by closing a single-phase or three-phase switch suitable for the charging current set by the intermediary server 700 in the authentication outlet 100 is performed.

In step S190, as the power supply is started, charging of the power demanding device 600 is started.

On the other hand, according to a special embodiment of the present invention, it is possible to use the power of the smart device as the authentication power through the USB terminal 111 without using the microcurrent as the authentication power.

This can be implemented by providing a USB terminal 111 in the authentication outlet 100 and connecting the user's smart device to the USB terminal 111 .

In this case, the micro-current becomes unnecessary, and therefore the micro-current limiting device 150 may not be used. Using this, instead of the portable charger 200 of FIG. 2, an ICPD (In-Cable Control and Protection Device) having a plug power supply unit 320, a power relay, and a connector terminal 440 as main components is used. can also be recharged. As shown in FIG. 2 , power for authentication of the smart device may be transmitted to the mobile charger 200 through the outlet terminal 110 , and in this case, a USB standard portable auxiliary battery may be used instead of the smart device.

In addition, the smart device connected to the USB terminal 111 of the authentication outlet 100 connects to the Internet network by itself, and provides the authentication outlet 100 ID to the intermediary server 700 by running an app for mobile charging and operates A data transmission/reception procedure to obtain a password can be performed.

The charging process using the power of the smart device as authentication power via the USB terminal 111 according to the special embodiment is as follows, and FIG. 5 is a flowchart for explaining the process.

In step S200, a process of connecting the user's smart device, for example, a smart phone or tablet PC connected to the Internet network and capable of running a mobile charging device app, to the USB terminal 111 of the authentication outlet 100 is performed.

In step S210, power is supplied from the user's smart device to the authentication outlet 100 to generate authentication power is performed.

In step S220, when the authentication outlet 100 is driven through the authentication power supplied from the user's smart device, the smart device automatically recognizes the authentication outlet 100, and the mobile charging device app of the smart device is driven process is carried out.

In step S230, the process of acquiring the ID of the authentication outlet 100 in the mobile charging device app of the smart device is performed.

In step S240, the app of the smart device connects to the intermediary server 700, transmits the authentication outlet 100 ID and the ID of the mobile charger 200, and sets the charging current, charging time and charging amount, and then the payment process is performed do,

In step S250, the smart device acquires the operation password of the authentication outlet 100 from the mediation server 700, and transmits it to the authentication server is performed.

In step S260, the process of transmitting the charging current, charging time, and charging amount for the user's power demand device 600 set by the intermediary server 700 to the authentication outlet 100 by the smart device is performed.

In step S270, a preparation process for supplying the corresponding power from the main power to the user's power demand device 600 is performed by closing the three-phase or single-phase switch 131 suitable for the charging current received from the authentication outlet 100 .

In step S280, the process of connecting the authentication plug 300 to the authentication outlet 100 and the power demand device 600 and the connector 500 are connected is performed.

In step S290, as power supply is started, charging of the power demanding device 600 is started.

On the other hand, according to another special embodiment of the present invention, the internal battery 461 is provided inside the power intermediary module without using a microcurrent as power for authentication, and the power of the internal battery 461 is used for authentication can be used for power.

3 is a view showing a state in which the internal battery 461 and the battery management unit 460 are provided in the power intermediary module, and FIG. 6 is a flowchart for explaining a process of using the internal battery 461 as power for authentication.

A procedure for using the internal battery 461 as power for authentication will be described with reference to FIGS. 3 and 6 .

In step S300, the process of connecting the authentication plug 300 to the authentication outlet 100 and the power demand device 600 and the connector 500 are connected is performed.

In step S310, a process of supplying power for power generation for authentication from the internal battery 461 of the power intermediary module 400 of the mobile charger 200 to the authentication outlet 100 is performed.

In step S320, the authentication outlet 100 is driven through the authentication power of step S110, and the power intermediary module 400 acquires the ID of the authentication outlet 100 is performed.

In step S330, the power intermediary module 400 transmits the authentication outlet 100 ID and the ID of the mobile charger 200 to the intermediary server 700 through the wireless communication unit 430 is performed.

In step S340, the intermediate server 700 transmits the authentication outlet 100 operation password to the power brokerage module 400 is performed.

In step S350, a process of confirming the specifications of the authentication outlet 100 and the power intermediary module 400 in the intermediary server 700 is performed.

In step S360, a process of setting a charging current to be supplied to the user's power demand device 600 in the intermediary server 700 and transmitting a charging start command is performed.

In step S370, a process of supplying charging power from the main power supply 10 by closing a single-phase or three-phase switch suitable for the charging current set by the intermediate server 700 in the authentication outlet 100 is performed.

In step S380, as power supply is started, charging of the power demanding device 600 is started.

In the charging process of the power demand device 600 described above, in some cases, the allowable current amount of the authentication outlet 100 may be different due to restrictions due to a power transmission line or the like. In preparation for such a case, it is necessary to classify and provide information on the amount of allowable current of the authentication outlet 100 .

As a specific providing method, first, the authentication outlet 100 directly provides the allowable current amount information to the mobile charger 200 through the authentication outlet 100 ID information, second, the authentication outlet 100 corresponds to the ID information There is a method in which information on the allowable current amount of the authentication outlet 100 is stored in the intermediary server 700 and the mobile charger 200 receives the stored permissible current information from the intermediary server 700 during the authentication process.

On the other hand, according to another special embodiment of the present invention, according to the mutual authentication of the authentication outlet 100 and the mobile charger 200, a current greater than the allowable current specified according to the external dimension standards of the plug and outlet can be selectively flowed. .

According to the development of materials and monitoring technology, it is possible to allow a large current to flow, but the allowable current, which was limited to distinguish the appearance, can be set upward. In this case, by adding a temperature sensor and a buzzer to the authentication outlet 100, a warning sound may be generated according to the temperature rise, and it is also possible to cut off the power supply by operating the electromagnetic switch.

According to an embodiment of the present invention, when the authentication procedure is performed using the microcurrent flowing by the operation of connecting the mobile charger 200 to the authentication outlet 100, the mobile charger 200 does not have its own battery. you don't have to

Furthermore, since the size of the micro-current is limited by using the micro-current limiting device 150, most electric devices, including cell phone chargers and electric shavers, use power even when connected to the authentication outlet 100 without going through an authentication procedure. can't get

Specifically, at the time of non-authentication (ie, before the authentication procedure), the maximum value of the microcurrent in the authentication outlet 100 may be, for example, 10mA. Therefore, for example, when a heater of rated power of 3,000W is connected to the authentication outlet 100, only power of a maximum of 2.2W (220V*10mA=2.2W) can be supplied, so before the authentication procedure, the electric heater cannot be used at all.

As another example, in the case of a smartphone charger, a current of 0.15A is required, and since the maximum value of the microcurrent provided by the authentication outlet 100 is, for example, only 10mA, the smartphone charger cannot be used at all before the authentication procedure. none.

In other words, the micro-current (10 mA) has a sufficient size as a power source for authentication to go through the authentication process, but even an electric device with a small power consumption, such as a smartphone charger, cannot be used realistically with this micro-current. Even if electricity corresponding to the maximum value of microcurrent is used without permission for the whole month, the amount of electricity is only 220V*0.01A*24 hours*31 days = 1.63kWh, and when converted into money, it does not reach 200 won.

In addition, according to an embodiment of the present invention, a micro current flows only when the mobile charger 200 is connected to the authentication outlet 100 , and when the mobile charger 200 is separated from the authentication outlet 100 , the power relay When the unit 130 is opened, current no longer flows from the main power source 10 to the portable charger 200 through the outlet power unit 140 of the authentication outlet 100 and the plug power unit 320 of the portable charger 200.

When the mobile charger 200 is not connected to the authentication outlet 100, even a small current does not flow. Therefore, the parts for user authentication do not consume power, that is, standby power during the standby operation of the authentication outlet 100. .

Thereby, the problem of mismatch between a person who bears the cost of standby power (eg, a building owner, etc.) and an actual user (eg, an electric vehicle owner, etc.) does not occur.

In addition, according to another embodiment of the present invention, the mobile charger 200 may not have its own battery. In this case, when the mobile charger 200 is separated from the authentication outlet 100, the mobile charger 200 is Since it is no longer possible to transmit power charge amount information to the intermediary server 700, a problem related thereto may occur.

In order to solve this, the wireless communication unit 430 of the mobile charger 200 may be configured to communicate with the intermediary server 700 periodically.

Specifically, the wireless communication unit 430 of the mobile charger 200 may communicate with the intermediary server 700 at each unit time period to transmit information on the amount of power charged per unit time to the intermediary server.

If the power demand device 600, for example, the electric vehicle is fully charged, the mobile charger 200 is connected to the authentication outlet 100 to calculate the amount of power charged for the entire time that power is supplied.

However, unlike this, if the mobile charger 200 is separated from the authentication outlet 100 in the middle without fully charging the electric vehicle, the intermediary server 700 in the last unit time period before separation (ie, before communication interruption) It can be regarded as the amount of charge of power in a unit time period in which separation (ie, communication interruption) occurred.

For example, when the unit time period is 1 minute, when 10 minutes have elapsed after charging, the last power charge is transmitted to the intermediary server 700, and if charging is stopped between 10 and 11 minutes, between 9 and 10 minutes can be regarded as the power charge between 10 and 11 minutes. This consideration is based on the fact that when an electric vehicle is charged, it is charged to the rated capacity up to 80 to 90% of the full charge, and then the amount of current drops sharply after that.

Alternatively, the unit time period may be arbitrarily selected such as 10 minutes, 5 minutes, 30 seconds, etc. instead of 1 minute. If the electric vehicle is not fully charged and disconnected in the middle, as can be seen from the above assumptions, as the unit time period increases, the electric vehicle power charge amount will be overestimated, and as the unit time period becomes smaller, the electric vehicle power The filling amount will be calculated more accurately.

Therefore, it would be ideal if the power charge amount information was transmitted in real time, but there is a problem in terms of cost because the communication cost greatly increases due to a problem such as data communication amount.

Preferably, the unit time period may be 1 minute as in the previous example. In this case, if an electric vehicle is charged at 3.3 kW per hour by applying the electric vehicle electricity rate system, an average electricity bill of 330 won per hour is generated. Therefore, if one minute is the unit time period, the electricity bill for one minute is 5.5 won.

As described in detail above, according to the present invention, there is an effect that a charging system capable of stably charging the plurality of power demanding devices 600 while stably maintaining the power state of the main power supply 10 is provided.

In addition, there is an effect that the power demand device 600 charging system capable of preventing unnecessary power consumption by using the authentication outlet 100 that does not consume standby power while maintaining security is provided.

In addition, there is an effect that the power demand device 600 charging system capable of simplifying and automating the charging process for power use related to the charging of the power demand device 600 is provided.

In addition, a charging system capable of improving user convenience is provided by adaptively responding to changes in the power situation of the main power source 10 and automatically performing charging stop and resume operations for the power demand device 600 without user intervention has the effect of being

On the other hand, in the case of supplying large power according to the charging of the power demand device 600 , heat is generated in the internal terminal portion of the authentication outlet 100 and the mobile charger 200 , and there is a risk of fire. In order to cope with this, the charging power supply section between the power relay unit 130 and the outlet power unit 140 of the authentication outlet 100, the plug power unit 320 and the power relay metering unit 420 of the mobile charger 200, and By additionally providing a temperature sensor in the charging power supply section between the connector terminals 440, it is possible to measure the temperature of the heating part to control the amount of charging (charger control unit 410, outlet control unit 120) or stop charging.

On the other hand, the charging-related technology used in the present invention can be applied in an equivalent way to discharging such as V2G (Vehicle To Grid) depending on power supply and demand conditions. The discharge current can be set and supplied to the house and grid in the same way as the charging current setting, and for the power transmitted in the reverse direction in this way, the discharge price can be paid from the electric power company according to the amount of power.

The embodiments of the present invention described above are merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and equivalent other embodiments are possible therefrom.

Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Moreover, it is to be understood that the present invention covers all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

10: main power
100: authentication outlet
110: outlet terminal
111: USB terminal
120: outlet control unit
130: power relay unit
131: single-phase switchgear
132: 3-phase switchgear
140: outlet power unit
141: single-phase power socket
142: 3-phase power socket
150: micro current limiting device
151: Normal Closed Relay
200: portable charger
300: authentication plug
310: plug terminal
320: plug power supply
321: single-phase power plug
322: 3-phase power plug
400: power intermediary module
410: charger control unit
420: power relay metering unit
430: wireless communication unit
440: connector terminal
450: display unit
460: battery management unit
461: internal battery
500: connector
600: power demand device
700: mediation server

Claims (5)

As a charging system for a mobile power demand device, in which rapid charging and slow charging are possible with a single device, and charging is operated by connecting to an external intermediary server and receiving an authentication socket operation password,
A three-phase power socket for rapid charging and a single-phase power socket for slow charging are integrally provided, and the authentication outlet is driven by power for user authentication and supplies three-phase power and single-phase power by user authentication; and
A three-phase power plug for rapid charging and a single-phase power plug for slow charging are integrally provided, and one end is connected to the authentication outlet to receive the three-phase power and the single-phase power, and the other end is to the connector of the power demanding device. A portable charger connected to supply charging current; including,
The portable charger further includes a built-in battery and capable of using battery power as power for authentication,
authentication outlet,
a power relay unit for controlling the connection or short circuit of a three-phase switchgear and a single-phase switchgear to supply or cut off external power from the main power source;
an outlet terminal provided in a shape in contact with the mobile charger and receiving authentication power and an authentication outlet operation code from the mobile charger;
an outlet power unit provided in a shape in contact with the mobile charger and supplying three-phase power or single-phase power to the outside; and
It is driven by power for authentication and stores the authentication outlet ID to determine whether the authentication outlet operation password corresponds to the outlet control unit; includes;
The intermediary server sends the type of charging current and charging start command to the power demand device according to the power operation status of the main power source and the availability of power such as concurrently connected users, and the outlet control unit sends the type of charging current and the charging start command to the power demanding device. is transmitted to the power relay unit, and the power relay unit automatically opens and closes three-phase switchgear and single-phase switchgear selectively according to the type of charging current, so that three-phase power and single-phase power can be selected without user intervention.
The authentication outlet is equipped with a USB terminal, and the user's smart device has a built-in mobile charging device app. When the smart device is connected to the USB terminal, power is supplied from the smart device to the authentication outlet and is used as power for authentication to drive the authentication outlet. , when the authentication outlet is activated, the smart device automatically recognizes the authentication outlet, and the mobile charging device app of the smart device is automatically driven to connect to the intermediary server, and after receiving the authentication outlet ID from the authentication outlet, along with the mobile charger ID It is transmitted to the intermediary server, and the authentication outlet operation password is received from the intermediary server and transmitted to the authentication outlet. Fast charging by mixing single-phase and three-phase alternating current based on a built-in battery, characterized in that the mobile power demanding device can be charged using a smart device even if there is no standby power in the device and there is no Internet network connected to the certified outlet A mobile charging system that satisfies both speed and charging accessibility. delete According to claim 1,
The mobile charger is composed of an authentication plug and a power intermediary module,
The authentication plug is
a plug terminal connected to the outlet terminal to transmit and receive the authentication outlet ID and the authentication outlet operation password, and transmit the authentication power;
It is connected in a shape corresponding to the outlet power supply, and is provided with a three-phase power plug and a single-phase power plug integrally, and a plug power supply unit for receiving three-phase power and single-phase power;
The power intermediary module,
a charger control unit that provides the authentication power to the authentication outlet, transmits the authentication outlet ID to an intermediate server, receives the authentication outlet operation password from the intermediate server, and transmits it to the authentication outlet;
a wireless communication unit that allows the charger control unit to access the intermediate server and a public network such as the Internet as a medium;
a power relay metering unit connected to the plug power supply unit, receiving the authentication power and transmitting it to the charger control unit, receiving the three-phase power supply and the single-phase power supply unit and providing it to a power demand device;
A connector terminal connected to the power relay metering unit to transmit power to the power demand device through a connector; fast charging speed and charging by mixing AC single-phase and three-phase AC based on a built-in battery, characterized in that it comprises a A portable charging system that satisfies accessibility at the same time. According to claim 1,
The outlet control unit receives the set value of the charging current allowed to be used in the user's power demand device from the intermediary server, and transmits it to the power relay unit, wherein the power relay unit is a three-phase switchgear according to the set value of the charging current. Alternatively, a mobile charging system that satisfies both fast charging speed and charging accessibility by mixing AC single-phase and 3-phase AC based on a built-in battery including connecting or shorting a single-phase switchgear. According to claim 1,
The authentication outlet is equipped with a micro-current limiting device to generate a micro-current when the mobile charger is connected and can be used as power for authentication. A mobile charging system that satisfies charging accessibility at the same time.

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