KR20150109608A - Apparatus for charging electric vehicle - Google Patents

Abstract

According to the present invention, disclosed is an apparatus for charging an electric vehicle, which has compatibility for charging the electric vehicle regardless of the charge standard of the electric vehicle and can charge the electric vehicle regardless of location and position. The apparatus for charging an electric vehicle according to the present invention includes a power storage module which has at least one secondary battery and stores power; a power conversion module which converts power stored in the power storage module; and a power serving interface which is connected to a charge interface formed in the electric vehicle and supplies power converted by the power conversion module to the electric vehicle.

Description

[0001] Apparatus for charging electric vehicle [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle charging technology, and more particularly, to a portable electric vehicle charging device capable of charging electric vehicles of various electric power standards.

In recent years, demand for portable electronic products such as notebook computers, video cameras, and portable telephones has been rapidly increased, and development of batteries, robots, and satellites for energy storage has been accelerated. Thus, a high performance rechargeable battery Researches are being actively conducted.

The secondary rechargeable batteries are nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel- It is very popular because of its low self-discharge rate and high energy density.

On the other hand, as carbon energy is gradually depleted and the interest in the environment is increasing, demand for hybrid cars and electric vehicles is gradually increasing worldwide, including the United States, Europe, Japan, and Korea. Since such hybrid vehicles and electric vehicles use electric energy stored in battery packs to obtain vehicle driving power, they are more fuel-efficient than automobiles using only engines, and do not emit pollutants or reduce emissions of pollutants, I am getting a good response. Therefore, more attention and research are focused on automotive batteries, which are key components of hybrid cars and electric vehicles.

However, despite the intensive interest and research on electric vehicles and hybrid vehicles, the production and sales of electric vehicles and hybrid vehicles are far below expectations.

As described above, the reason why the demand of the electric vehicle can not be increased as expected is that there are not many charging stations that can charge the electric vehicle and that the electric vehicle can be charged quickly This is because the device has not been developed.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing an electric vehicle charging system according to the prior art; Fig.

Referring to FIG. 1, the electric vehicle 10 is supplied with electric power in a manner similar to that of a conventional fossil fuel automobile. That is, the electric vehicle 10 is connected to the charging stand 20 and is supplied with power from the charging stand 20. At this time, a charging interface (for example, a charging receptacle) provided in the electric vehicle 10 and a charging interface (for example, a charging plug) provided in the charging stand are connected to each other to supply power from the charging stand to the electric vehicle.

However, since the conventional charging stand 20 does not have mobility, it is difficult to charge the electric vehicle 10 which has been completely discharged during operation and has been shut down during the operation in the conventional electric vehicle charging system There is a problem.

In addition, according to the conventional electric vehicle charging system, there is a problem that it is difficult to supply a charging electric power suitable for the standard of an electric vehicle.

Electric vehicles are required to be supplied with electric power in conformity with the electric power standards used by electric vehicles, because electric power used differs depending on their types. For example, there may be an electric vehicle that is powered by DC power, or alternatively, there may be a vehicle that is powered by AC power. Also, some electric vehicles can be powered by 220V, and other electric vehicles can be powered by different sizes of electric power. Therefore, the electric vehicle charging apparatus is not required to uniformly supply electric power of the same type and size, but needs to supply suitable electric power according to the electric power standard used by the electric vehicle.

In other words, in the case of a conventional automobile other than an electric car, there is a gasoline-driven automobile and a gasoline-driven automobile. The gasoline-driven automobile must be charged with gasoline. do. Likewise, in the case of an electric vehicle, an AC electric vehicle using an alternating current must be supplied with AC power, and an electric vehicle using a DC electric current needs to be supplied with DC power.

However, according to the conventional electric vehicle charging system, different electric vehicle charging devices are used according to charging standards of electric vehicles. As a result, compatibility of the electric vehicle charging apparatus for charging the electric vehicle is deteriorated.

In other words, in the past, an electric vehicle charging device capable of charging an electric vehicle that is supplied with AC power and an electric vehicle charging device capable of charging an electric vehicle that is supplied with DC power have been separately provided as separate devices It is installed and operated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an electric vehicle which is compatible with an electric vehicle so as to be able to charge the electric vehicle irrespective of the charging standard, And an object of the present invention is to provide a vehicle charging apparatus.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It is also to be understood that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations thereof.

According to an aspect of the present invention, there is provided an electric vehicle charging apparatus comprising: a power storage module including at least one secondary battery to store electric power; A power conversion module for converting power stored in the power storage module; And a power supply interface connected to a charging interface provided in the electric vehicle for supplying electric power converted by the electric power conversion module to the electric vehicle.

According to an aspect of the invention, the power conversion module comprises at least two power converters, wherein the power serving interface is comprised of at least two charging plugs, each of the at least two charging plugs having a 1: 1).

Preferably, the mobile communication terminal further includes a charging information communication interface connected to the vehicle communication interface provided in the electric vehicle for transmitting and receiving charging information.

More preferably, the charging information communication interface is constituted by two or more connectors, and the two or more connectors are respectively provided in the two or more charging plugs, and when the charging plug is connected to an outlet of the electric vehicle, And is communicatively coupled to a vehicle communication interface of the vehicle.

Still preferably, the charging information includes charging state information of the electric vehicle.

More preferably, the power supply control module further includes a supply power control module for adjusting an amount of electric power supplied to the electric vehicle according to the charge state information.

According to another aspect of the present invention, there is further provided a power conversion control module for generating a power conversion signal for converting power into electric power corresponding to a charging standard of the electric vehicle, and transmitting the power conversion signal to the power conversion module And the power conversion module converts power stored in the power storage module according to the power conversion signal.

Preferably, the mobile communication terminal further includes a charging information communication interface connected to the vehicle communication interface provided in the electric vehicle for transmitting and receiving charging information.

More preferably, the charging information includes charging standard information of the electric vehicle, and the power conversion control module generates the power conversion signal using the charging standard information received from the automobile communication interface .

Still preferably, the charging information includes charging state information of the electric vehicle.

More preferably, the power supply control module further includes a supply power control module for adjusting an amount of electric power supplied to the electric vehicle according to the charge state information.

Meanwhile, the electric vehicle charging apparatus according to the present invention may be a component of a vehicle.

According to the present invention, the electric vehicle charging apparatus can charge the electric vehicle irrespective of the charging standard of the electric vehicle.

According to an aspect of the present invention, an electric vehicle charging apparatus is provided with a charging plug and a power converter of various sizes, so that the electric vehicle can be charged regardless of the charging standard of the electric vehicle.

According to another aspect of the present invention, an electric vehicle charging apparatus receives charging standard information of an electric vehicle and can supply charging electric power to the electric automobile in accordance with the charging standard of the electric vehicle using such charging standard information.

Further, according to the present invention, the electric vehicle charging apparatus can charge the electric vehicle without depending on the position of the electric vehicle requiring charging.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention, And should not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing an electric vehicle charging system according to the prior art; Fig.
2 is a diagram showing an example of a charging system according to the present invention.
3 is a schematic view of an electric vehicle charging apparatus according to an embodiment of the present invention.
FIG. 4 is a view showing a state where an electric vehicle driven with single-phase AC power is charged using an electric vehicle charging apparatus according to an embodiment of the present invention.
FIG. 5 is a schematic view showing a charging information communication interface further included in an electric vehicle charging apparatus according to an embodiment of the present invention. Referring to FIG.
6 is a functional block diagram of an electric vehicle charging apparatus according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The embodiments of the present invention are provided to explain the present invention more fully to the ordinary artisan, so that the shape and size of the components in the drawings may be exaggerated, omitted or schematically shown for clarity. Thus, the size or ratio of each component does not entirely reflect the actual size or ratio.

2 is a diagram showing an example of a charging system according to the present invention.

Referring to FIG. 2, the electric vehicle charging system according to the present invention includes an electric vehicle 100 and an electric vehicle charging apparatus 200.

The electric vehicle 100 can be supplied with electric energy from the electric vehicle charging apparatus 200 as a vehicle that is driven by using electric energy as a power source. The electric vehicle may include a charging interface 110. The charging interface 110 may be connected to the electric power serving interface 210 provided in the electric vehicle charging apparatus to provide a charging path through which electric power can be supplied from the electric vehicle charging apparatus 200.

In the present invention, the electric vehicle 100 means a vehicle in which at least a part of the power source is electric energy, and is used as a concept including not only a pure electric vehicle but also a hybrid vehicle.

The electric vehicle 100 can be classified into various types according to the electric power to be used. As an example of the electric vehicle 100, there may be an electric vehicle supplied with AC power from the outside, and in another example, there may be an electric vehicle supplied with DC power from the outside. More specifically, the type of the electric vehicle 100 can be further subdivided according to the magnitude of electric power supplied thereto.

In the above example, an electric vehicle supplied with AC power from the outside includes a power conversion device and a secondary battery that convert AC power into DC power, converts AC power supplied from the outside into DC power, The battery can be charged.

Also, in the above example, an electric vehicle supplied with DC power from the outside can be equipped with a secondary battery inside and can charge the secondary battery provided therein by using the DC power supplied from the outside.

These electric vehicles can be driven using electric energy stored in the secondary battery.

Hereinafter, an electric vehicle of three kinds or standard will be described as an example. In other words, when distinguishing based on the supplied power, there are two types of electric vehicles: a single-phase AC electric vehicle supplied with single-phase AC power, a three-phase AC electric vehicle supplied with three-phase AC power, There may be a DC electric vehicle powered by electricity.

However, these three kinds or standards are only set for convenience of explanation, and therefore the present invention is not limited to this kind or standard.

Advantageously, the electric vehicle 100 further comprises a vehicle communication interface. This automobile communication interface is a device for communicating with an external device, in particular, with the electric vehicle charging device 200.

The automobile communication interface may be connected to a charging information communication interface provided in the electric vehicle charging apparatus 200 to be described later to transmit and receive charging information.

Here, the charging information may include charging standard information and / or charging status information as various information used to charge the electric vehicle 100. [

The charging standard information may be information on the type of electric power that the electric vehicle 100 can receive. For example, the charging standard information of the electric vehicle 100 driven by the DC power may include information indicating that DC power is supplied to the electric vehicle 100 and the magnitude of the DC power.

The charge state information is information on the charge state of the electric vehicle 100 before charging starts, during charging, or when charging is completed. For example, the charging status information may be information indicating a full charge capacity of the electric vehicle 100, a quantity of electric power currently stored in the electric vehicle 100, an amount of electric power supplied from the electric vehicle charging apparatus 200 to the electric vehicle 100, The magnitude of the supply current and the supply voltage supplied from the apparatus 200, and the current state information of the electric vehicle 100 (normal, abnormal, etc.). Through such charge state information, the electric vehicle charging apparatus can calculate the amount of electric power to be supplied to the electric vehicle 100 for full charge, the amount of electric power to be supplied to the electric vehicle 100 to charge the electric vehicle 100 up to the target amount of charge .

2, an electric vehicle charging apparatus 200 according to the present invention is an apparatus for supplying electric energy to an electric vehicle 100, and includes an electric power storage module 230, a power conversion module 220, And an interface 210.

Further, the electric vehicle charging apparatus 200 may be provided in the vehicle V. [ That is, as shown in the example of FIG. 2, the electric vehicle charging apparatus 200 according to the present invention can be mounted on the vehicle V and have mobility. However, the form in which the electric vehicle charging apparatus 200 according to the present invention is provided in the vehicle V is not limited to the example shown in FIG. 2, the electric vehicle charging apparatus 200 may be mounted on the upper portion of the vehicle V as a separate component, and the vehicle V and the electric vehicle charging apparatus 200 may be mounted But may also be embodied in an integrated form.

The power storage module 230 may include one or more secondary batteries. The power storage module 230 may be a collection of secondary batteries in which one or more secondary batteries are connected in series and / or in parallel. The maximum output and / or maximum capacity of the power storage module 230 may be determined according to the serial-parallel type of one or more secondary batteries.

The power conversion module 220 may convert the power stored in the power storage module 230. Here, the conversion of electric power includes a conversion of the type of electric power such as converting AC power into DC power or conversely DC power into AC power, and secondly, converting the magnitude of electric power Is used. Here, the conversion between AC power and DC power may include conversion between single-phase AC power and DC power and conversion between three-phase AC power and DC power.

The power conversion module 220 may include one or more power converters for conversion between alternating current and direct current, and magnitude conversion of power. More specifically, the power converter may include an AC-DC converter capable of converting AC and DC, and a DC-DC converter capable of converting the magnitude of DC power. have.

The power serving interface 210 is a component connected to the charging interface 110 provided in the electric vehicle 100. That is, the power serving interface 210 may provide a power supply path for the electric vehicle 100 and the electric vehicle charging apparatus 200. In other words, the power serving interface 210 may be connected to the charging interface 110 provided in the electric vehicle 100 so that electric power stored in the electric power storage module 230 is supplied to the electric vehicle 100 .

In particular, the power serving interface 210 can supply electric power to the electric vehicle 100 by using the power conversion module 220 described above.

Preferably, the electric vehicle charging apparatus 200 according to the present invention may further include a charging information communication interface. The charging information communication interface may communicate with a vehicle communication interface provided in the electric vehicle 100 to transmit and receive charging information.

The charging information may include charging standard information and / or charging status information, as described above. The electric vehicle charging apparatus 200 can supply charging electric power suitable for the electric vehicle 100 by transmitting and receiving charging information through the charging information communication interface and can control the amount of electric power supplied to the electric vehicle 100.

Such a charging information communication interface may be configured as a connector and may be communicatively coupled to a vehicle communication interface of the electric vehicle 100 corresponding to such a connector. That is, the automobile communication interface of the electric vehicle 100 may also be composed of a connector corresponding to the connector. In addition, the charging information communication interface may be communicatively coupled to the vehicle communication interface of the electric vehicle 100 in a wireless communication manner, and is not limited to a specific communication method.

Hereinafter, a specific embodiment of the electric vehicle charging apparatus 200 capable of charging the electric vehicle 100 regardless of the charging standard of the electric vehicle 100 will be described.

≪ Embodiment having two or more charging plugs >

3 is a schematic view of an electric vehicle charging apparatus according to an embodiment of the present invention.

Referring to FIG. 3, an electric vehicle charging apparatus 200 according to an embodiment of the present invention includes a power storage module 230, a power conversion module 220, and a power serving interface 210.

In particular, the power conversion module 220 may include two or more power converters, and the power serving interface 210 may include two or more charging plugs corresponding to the two or more power converters. That is, the power servicing interface 210 is composed of two or more charging plugs, each of which may correspond to two or more power converters in a one-to-one correspondence.

3, the power conversion module 220 includes three power converters 221, 222, and 223, and the power serving interface 210 includes three charging plugs 211, 212, and 213 Respectively. The three power converters 221, 222, and 223 are configured to correspond one-to-one with three charging plugs 211, 212, and 213, respectively. Here, the three power converters 221, 222, and 223 may be referred to as a first power converter 221, a second power converter 222, and a third power converter 223, respectively, and three charging plugs 211 212, and 213 may be termed a first charging plug 211, a second charging plug 212 and a third charging plug 213, and each power converter may be termed a 1: 1 .

That is, the first power converter 221 is connected to the first charging plug 211, the second power converter 222 is connected to the second charging plug 212, and the third power converter 223 is connected to the third And is connected to the charging plug 213.

In the embodiment of FIG. 3, the first power converter 221 is a power converter capable of converting single-phase alternating-current power into direct-current power or vice versa. Accordingly, the first power converter 221 can convert the DC power stored in the power storage module 230 into single-phase AC power.

A first charging plug 211 is connected to the first power converter 221. The first charging plug 211 can be connected to a socket corresponding to the first charging plug 211. Here, the outlet is an outlet provided in the electric vehicle 100.

That is, the single-phase AC power converted by the first power converter 221 can be supplied to the electric vehicle 100 through the first charging plug 211 connected to the first power converter 221. In other words, the electric vehicle, which can be driven by receiving the single-phase AC power, can receive the single-phase AC power converted by the first power converter 221 through the first charging plug 211.

In the embodiment of FIG. 3, the second power converter 222 is a power converter that can convert three-phase alternating current power into direct current power or vice versa. Therefore, the second power converter 222 can convert the DC power stored in the power storage module 230 into three-phase AC power.

This second power converter 222 is connected to the second charging plug 212 and the second charging plug 212 can be connected to the socket corresponding to the second charging plug 212. Here, the outlet is an outlet provided in the electric vehicle.

That is, the three-phase AC power converted by the second power converter 222 is supplied to the electric vehicle through the second charging plug 212 connected to the second power converter 222 in the same manner as the first power converter or the like Can be supplied. In other words, the electric vehicle, which can be driven by receiving the three-phase AC power, can receive the three-phase AC power converted by the second power converter 222 through the second charging plug 212.

In the embodiment of FIG. 3, the third power converter 223 is a power converter capable of converting DC power into DC power of another magnitude. Accordingly, the third power converter 223 can convert the DC power stored in the power storage module 230 into DC power of another magnitude.

A third charging plug 213 may be connected to the third power converter 223 and a third charging plug 213 may be connected to an outlet corresponding to the third charging plug 213. [ Accordingly, the electric vehicle, which can be driven by the DC power of a predetermined size, can receive the DC power having the predetermined magnitude converted by the third power converter 223 through the third charging plug 213.

That is, in the embodiment of FIG. 3, the electric vehicles having any one of the three kinds of standards are respectively connected to the first charging plug 211, the second charging plug 212 and the third charging plug 213 And can be connected to one charging plug to receive power. To this end, the electric vehicle may be provided with an outlet through which a charging plug can be connected.

When a charging plug conforming to the specification of an electric vehicle is connected to the outlet of the electric vehicle, electric power can be supplied to the electric vehicle according to the electric vehicle specification. Therefore, the electric vehicle charging apparatus 200 according to an embodiment of the present invention can charge all kinds of electric vehicles.

That is, in the above-described example, the electric vehicle using the single-phase AC power can be charged through the first charging plug 211 and the first power converter 221, and the electric vehicle using the three- The electric power can be charged through the charging plug 212 and the second power converter 222 and the electric vehicle using the DC power can be charged through the third charging plug 213 and the third power converter 223. [

To this end, the electric vehicle charging apparatus 200 according to an embodiment of the present invention includes at least two electric power converters and a plurality of charging plugs, each of which converts electric power according to the standard of an electric vehicle in common use. In the present specification, the electric automobile has been described as having three specifications in total, but the standard of the electric automobile actually used may be different from that of the electric automobile, and the number of the electric power converter and the charging plug is increased or decreased can do.

FIG. 4 is a view showing a state where an electric vehicle driven with single-phase AC power is charged using an electric vehicle charging apparatus according to an embodiment of the present invention.

Referring to FIG. 4, an electric vehicle 100 driven by single-phase AC power and an electric vehicle charging apparatus 200 according to an embodiment of the present invention are shown. On the other hand, at the rear of the electric vehicle 100, an outlet J is provided. The receptacle J has a shape corresponding to the first charging plug 211 capable of supplying single-phase AC power. Therefore, the first charging plug 211 among the three charging plugs provided in the electric vehicle charging apparatus 200 can be inserted into the outlet J of the electric vehicle 100 shown in Fig. Thus, after the first charging plug 211 is inserted and connected to the outlet J of the electric vehicle 100, the single-phase alternating-current power converted by the first electric power converter 221 is supplied to the electric vehicle 100 .

3 and FIG. 4, the shapes of the respective charging plugs are shown as being different from each other, but the present invention is not necessarily limited to these embodiments. That is, at least some of the shapes of the respective charging plugs may be embodied in the same form.

Preferably, the electric vehicle 100 and the electric vehicle charging apparatus 200 can control the amount of electric power supplied to the electric vehicle 100 by communicating with each other and transmitting / receiving information.

To this end, the electric vehicle may be equipped with a vehicle communication interface, and the electric vehicle charging apparatus 200 may further include a charging information communication interface. The charging information communication interface can communicate with the automobile communication interface to transmit and receive charging information.

More preferably, the charging information communication interface may be composed of two or more connectors. At this time, the two or more connectors may be formed in the number corresponding to the two or more charging plugs described above, and each of the charging plugs may be provided with the connector. Also, the automobile communication interface of the electric vehicle 100 may be formed of a connector and provided in an outlet provided in the electric vehicle 100 as well. Therefore, when the charging plug is connected to the outlet of the electric vehicle 100, a power supply path can be formed and a communication path can be formed. In other words, when the charging plug is connected to the outlet of the electric vehicle 100, the connector provided in the charging plug of the electric vehicle charging apparatus 200 and the connector provided in the outlet of the electric vehicle 100 are connected, 100 and the charging information communication interface of the electric vehicle charging apparatus 200 can be communicatively connected to each other.

Thus, when the electric connection between the electric vehicle 100 and the electric vehicle charging apparatus 200 is established, the electric vehicle 100 and the electric vehicle charging apparatus 200 can transmit and receive the charging information.

In particular, the charge information may include charge state information of the electric vehicle 100. The charge state information includes at least one of a full charge capacity of the electric vehicle 100, a quantity of electric power stored in the electric vehicle 100, a quantity of electric power supplied from the electric vehicle charging apparatus 200 to the electric vehicle 100, State information of the electric vehicle 100, and the like. Therefore, the electric vehicle charging apparatus 200 receives the information on the full charge capacity of the electric vehicle 100 and the electric energy stored in the electric vehicle 100 from the electric vehicle 100, and calculates the amount of electric power to be supplied So that the amount of electric power to be supplied to the electric vehicle 100 can be adjusted.

To this end, the electric vehicle charging apparatus 200 may further include a supply power control module that controls the amount of electric power supplied to the electric vehicle 100 using the charge state information.

For example, the supply power control module calculates the difference between the full charge capacity of the electric vehicle 100 and the electric power stored in the electric vehicle 100 to charge the electric vehicle 100, and calculates the amount of electric power to be supplied can do.

As another example, the supply power control module may calculate the difference between the target amount of charge of the electric vehicle 100 and the amount of electric power stored in the electric vehicle 100 to charge the electric vehicle 100 to the target charge amount, Can be calculated.

As another example, when an emergency situation such as overheating occurs in the electric vehicle 100 during the charging of the electric vehicle 100, the supply power control module receives the emergency information from the charging information communication interface The electric power supplied to the electric vehicle 100 is set to 0 so that no electric power is supplied to the electric vehicle 100. [

In this way, the supply power control module can adjust the amount of power supplied to the electric vehicle 100 using the charge state information after receiving the charge state information from the charge information communication interface.

FIG. 5 is a schematic view showing a charging information communication interface further included in an electric vehicle charging apparatus according to an embodiment of the present invention. Referring to FIG. In the embodiment shown in Fig. 5, the car communication interface of the electric vehicle 100 and the charge information communication interface of the electric vehicle charging apparatus 200 are configured by connectors C1 and C2, respectively.

5, a connector C2 for communication is further provided inside the charging plug 211 of the electric vehicle charging apparatus 200, and a connector (not shown) having a shape corresponding to the connector C2 C1 are provided in an outlet J of the electric vehicle 100. [ In addition to the power line L1 for supplying electric power to the electric vehicle 100, a communication line L2 for communication is further provided. The electric vehicle charging apparatus 200 is also provided with a supply power control module (not shown) for receiving charging information, in particular charging state information, through the communication line L2 and controlling the amount of electric power supplied to the electric vehicle 100 by using the charging information, May be further provided.

Therefore, when the charging plug 211 shown in Fig. 5 is connected to the receptacle J of the electric vehicle 100, the connector C2 of the electric vehicle charging apparatus 200 and the connector of the electric vehicle 100 (C1) are connected to each other, a power supply path is formed and a communication connection is established between the electric vehicle (100) and the electric vehicle charging apparatus (200). Information on the full charge capacity of the electric vehicle 100, the amount of electric power stored in the electric vehicle 100, etc. from the electric vehicle 100 can be transmitted to the supply power control module through the communication line L2. The supply power control module can estimate the amount of electric power to be supplied to the electric vehicle 100 using this information, and electric power can be supplied to the electric vehicle 100 based on the calculated amount of electric power.

≪ Embodiment to perform power conversion using charging standard information of electric vehicle >

6 is a functional block diagram of an electric vehicle charging apparatus according to another embodiment of the present invention.

Referring to FIG. 6, an electric vehicle charging apparatus 200 according to another embodiment of the present invention includes a power storage module 230, a power conversion module 220, and a power serving interface 210, Conversion control module 250, a charging information communication interface 240 and a supply power control module 260. [

The power storage module 230 may include one or more secondary batteries to store power.

The power serving interface 210 may be connected to the charging interface 110 provided in the electric vehicle 100 so that electric power stored in the electric power storage module 230 may be supplied to the electric vehicle 100. [ At this time, the power serving interface 210 can supply the electric power converted by the power conversion module 220 to the electric vehicle 100.

The power conversion module 220 may convert the type and / or size of power stored in the power storage module 230. To this end, the power conversion module 220 may include one or more power converters.

In particular, the power conversion module 220 may convert the power stored in the power storage module 230 according to a power conversion signal generated by the power conversion control module 250 to be described later. That is, the power conversion module 220 receives the power conversion signal generated by the power conversion control module 250 to be described later, and then converts the power conversion signal into a power corresponding to the charging standard of the electric vehicle 100 Power can be converted.

The power conversion control module 250 may generate a power conversion signal and transmit the generated power conversion signal to the power conversion module 220. Here, the power conversion signal includes information on the charging standard. That is, the power conversion control module 250 generates a power conversion signal including information on the charging standard so as to provide the electric vehicle 100 with charging power suitable for the charging standard of the electric vehicle 100 to be charged To the power conversion module (220).

The charging information communication interface 240 may communicate with a vehicle communication interface provided in the electric vehicle 100 to transmit and receive charging information.

Preferably, the charging information communication interface 240 is connected to the electric vehicle 100, receives the charging standard information of the electric vehicle 100, and transmits the received charging standard information to the electric power conversion control module 250 . The power conversion control module 250 can generate the power conversion signal using the charging standard information received from the charging information communication interface 240. [

For example, when the electric vehicle 100 communicating with the electric vehicle charging apparatus 200 is a vehicle using a single-phase AC voltage, the electric vehicle 100 transmits the charging standard information through the charging information communication interface 240 To the electric vehicle charging apparatus (200). The charging information communication interface 240 transmits the received charging standard information to the power conversion control module 250. The power conversion control module 250 generates a power conversion signal using the charging standard information received from the charging information communication interface 240. [ Since the charge standard information received from the electric vehicle 100 is a single-phase AC voltage, this information is included in the power conversion signal. The generated power conversion signal is transmitted to the power conversion module 220, and the power conversion module 220 converts the power stored in the power storage module 230 into single-phase AC power according to the power conversion signal. As a result, the power serving interface 210 can supply the single-phase AC power converted by the power conversion module 220 to the electric vehicle 100.

When the electric vehicle 100 communicating with the electric vehicle charging apparatus 200 uses the three-phase AC power or the direct current power, the electric power is converted by the same method as the above-described method, . Therefore, repetitive description will be omitted.

That is, the electric vehicle charging apparatus 200 according to another embodiment of the present invention receives charging standard information from the electric vehicle 100, converts the electric power into a charging standard used by the electric vehicle 100, And the converted electric power can be supplied to the electric vehicle 100. [

More preferably, the charging information communication interface can receive the charging status information from the electric vehicle 100 and transmit the received charging status information to the supply power control module 260. [ The supply power control module 260 can adjust the amount of electric power supplied to the electric vehicle 100 using the charge state information after receiving the charge state information.

For example, in order to fully charge the electric vehicle 100, the charging information communication interface 240 receives information about the full charge capacity of the electric vehicle 100 from the electric vehicle 100 and the amount of electric power stored in the electric vehicle 100 Lt; / RTI > The supply power control module 260 can calculate the amount of power to be supplied to the electric vehicle 100 by calculating the difference between the full charge capacity of the electric vehicle 100 and the electric power stored in the electric vehicle 100. [

As another example, in order to charge the electric vehicle 100 up to the target amount of charge, the charging information communication interface 240 from the electric vehicle 100 is connected to the target charging amount of the electric vehicle 100 and the electric power amount stored in the electric vehicle 100 Information can be received. The supply power control module 260 calculates the difference between the target amount of charge of the electric vehicle 100 and the amount of electric power stored in the electric vehicle 100 in order to charge the electric vehicle 100 to the target charge amount, The amount of power to be supplied can be calculated.

As another example, when an emergency such as overheating occurs in the electric vehicle 100 during the charging of the electric vehicle 100, the charging information communication interface 240 receives the emergency information from the electric vehicle 100 . When receiving the emergency information, the supply power control module 260 sets the electric power supplied to the electric vehicle 100 to 0 so that electric power is no longer supplied to the electric vehicle 100.

As described above, the supply power control module 260 can adjust the amount of electric power supplied to the electric vehicle 100 using the charge state information after receiving the charge state information through the charge information communication interface 240 .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

In describing various embodiments of the present invention, the components labeled '~ module' should be understood to be functionally distinct elements rather than physically distinct elements. Thus, each component may be selectively integrated with another component, or each component may be divided into sub-components. However, it should be apparent to those skilled in the art that, even if the components are integrated or divided, the integrated or divided components should be construed as being within the scope of the present invention if the identity of the functions can be recognized.

100: Electric vehicle
200: electric vehicle charging device
210: Power serving interface
220: power conversion module
230: Power storage module
V: vehicle

Claims (12)

A power storage module having one or more secondary cells to store power;
A power conversion module for converting power stored in the power storage module; And
A charging interface provided in the electric vehicle for supplying electric power converted by the electric power conversion module to the electric vehicle,
And an electric motor for charging the electric vehicle. The method according to claim 1,
Wherein the power conversion module includes at least two power converters,
Wherein said power servicing interface is comprised of at least two charging plugs, each of said at least two charging plugs corresponding to said at least two power converters in a one-to-one correspondence. 3. The method of claim 2,
Further comprising a charging information communication interface connected to and communicating with a car communication interface provided in the electric vehicle for transmitting and receiving charging information. The method of claim 3,
Wherein the charging information communication interface is constituted by two or more connectors, wherein the two or more connectors are respectively provided in the two or more charging plugs, and when the charging plug is connected to an outlet of the electric vehicle, And the electric motor is connected to the electric motor. The method of claim 3,
Wherein the charging information includes charging state information of the electric vehicle. 6. The method of claim 5,
Further comprising a supply power control module for controlling an amount of electric power supplied to the electric vehicle according to the charge state information. The method according to claim 1,
Further comprising a power conversion control module for generating a power conversion signal for converting power into power corresponding to a charging standard of the electric vehicle and for transmitting the power conversion signal to the power conversion module,
Wherein the power conversion module converts power stored in the power storage module according to the power conversion signal. 8. The method of claim 7,
Further comprising a charging information communication interface connected to and communicating with a car communication interface provided in the electric vehicle for transmitting and receiving charging information. 9. The method of claim 8,
Wherein the charging information includes charging standard information of the electric vehicle,
Wherein the power conversion control module generates the power conversion signal using the charging standard information received from the automobile communication interface. 9. The method of claim 8,
Wherein the charging information includes charging state information of the electric vehicle. 11. The method of claim 10,
Further comprising a supply power control module for controlling an amount of electric power supplied to the electric vehicle according to the charge state information. A vehicle comprising an electric vehicle charging device according to any one of the preceding claims.

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