KR20120087771A - Apparatus for charging electric vihicle - Google Patents

Abstract

PURPOSE: An apparatus for charging an electric car is provided to reduce costs and time by supplying the charging apparatus integrally manufactured by combining a main body and a base embedded under the ground. CONSTITUTION: A wireless communication unit(10) receives information about a charging type of vehicles from an entering car. A controller(50) decides the charging type of the entering car reference to the received information. An output unit(70) outputs a signal, which is discriminated with the naked eye, according to the controller. A protection unit(20) prevents electrical accidents. A measuring unit(30) measures power amounts supplied to the electric car.

Description

Electric Vehicle Charger {APPARATUS FOR CHARGING ELECTRIC VIHICLE}

The present invention relates to an electric vehicle, and more particularly to an electric vehicle charging device.

Today, automobiles have become a necessity for everyday life. Cars have become more prevalent and occupy an important place in our lives by providing people with fast and convenient mobility.

However, the increase of the existing internal combustion vehicle has caused a serious environmental pollution due to the increase of the exhaust gas emitted from the vehicle. In order to solve the air and environmental pollution problem, researches on electric vehicles (EVs) using electricity, which is a clean fuel, have been actively conducted, and products applying the technology have been released.

Moreover, the demand for environmentally friendly electric vehicles (EVs) is increasing due to global environmental regulations and energy cost reduction trends. In the United States and Europe, the provision of atmospheric preservation laws is mandatory to disseminate EVs. In Korea, as a part of low-carbon green growth, interest and research on green cars (green cars) are actively in progress.

In order to expand the distribution of EVs, it is essential to build a charging infrastructure to charge electric vehicles. In particular, increasing the capacity of the battery of the electric vehicle has a disadvantage in that the weight of the vehicle body weight, there is no limit to the distance that the electric vehicle can run with a single shock. Therefore, it is essential to install a charging station linked with a road network to charge an electric vehicle anytime and anywhere during a long-distance operation including a domestic charging facility.

In addition to the study of the electric vehicle itself, in the use of the charging station, the emphasis on the convenience of the driver, the research to make the driver easier and more convenient to use.

In addition, unlike the internal combustion car, the charging device of the electric vehicle can be installed and operated in various places such as indoor parking lot, outdoor parking lot, performance hall, etc. in addition to the dedicated charging station, the construction and installation of the charging device should be easy and simple.

An object of the present invention is to provide a vehicle charging device that outputs or transmits a predetermined signal to an electric vehicle entering a charging station so that the charging type of the charging device can be easily identified by wireless communication or the naked eye.

Still another object of the present invention is to provide an electric vehicle charging device that is integrally manufactured by combining a base of a charging device buried under the ground with a main body.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the claims, as well as the following description and the annexed drawings.

The vehicle charging apparatus according to the present invention allows the driver to enter the charging station to easily identify the charging type of the charging device by wireless communication or the naked eye even at a long distance, thereby making it more convenient to use the charging station.

In addition, the present invention by supplying a filling device made integrally by combining the base buried below the ground with the main body portion to the construction site, filling, without cumbersome procedures such as tooling work (concrete placing) or concrete drying work at the construction site Only the trench construction according to the standard of the device was carried out, which greatly reduced the cost and time, allowing workers to easily install the charging device regardless of weather conditions.

1 is an exemplary view showing an electric vehicle charging device according to the present invention.
2 is a block diagram of a main body according to the present invention;
Figure 3a is a perspective view of the base according to the present invention.
Figure 3b is a plan view of the base according to the present invention.
Figure 3c is a cross-sectional view of the base according to the present invention.
3D is a cross-sectional view of a base in accordance with another embodiment of the present invention.
Figure 4a shows a skeleton of the base according to the present invention.
Figure 4b is a view of a connecting portion for coupling the body portion and the base.
Figure 4c is an illustration showing another form of the charging device 300 according to the present invention.
Figure 5 is an illustration of the operation of the electric vehicle charging apparatus according to the present invention.

In order to achieve the above object, the electric vehicle charging device according to the present invention,

A main part which mounts the main components of the charging device and performs electric charging on the electric vehicle, a base which is embedded under the ground and provides a retraction path of the power supply line as a base for supporting the main body part, and on the bottom surface of the main body part. It is configured to include a connecting portion for coupling the body portion and the base by bolt binding.

Preferably, the main body may be connected to a power supply line coming in through the wire entry hole of the base, and a power supply unit for supplying power for charging, a measurement unit for measuring the amount of power supplied to an electric vehicle, and may occur in a charging device. A protection unit that prevents an electrical accident such as a short circuit or a short circuit, an input unit that inputs numbers or letters according to a user's operation, an output unit that displays the amount of power measured by the measurement unit, and an electric vehicle. When entering the charging station, the communication unit which establishes communication with the entry vehicle and receives information on the charger type from the entry vehicle, compares the charging type of the entry vehicle and the charging device with reference to the received information, and determines that it can be charged. And a control unit for informing that the entry vehicle can be charged. .

Preferably, the base includes a plurality of anchors, an anchor frame that connects and restrains the anchors in a transverse or vertical direction to maintain high tension and spacing between the plurality of anchors, and anchors that bind the anchors and the anchor frame. It is characterized by consisting of a filling material for binding the anchors and the anchor frame into a structure by bolts and concrete pouring.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is an exemplary view showing an electric vehicle charging device according to the present invention.

As shown in Figure 1, the electric vehicle charging device 300 according to the present invention is largely, the main body 100 for mounting the main components of the charging device, and embedded under the ground to support the main body 100 The base may be divided into a base 200 that provides an incoming path of the power supply line.

2 is a block diagram of a main body according to the present invention.

As shown in FIG. 2, the main body 100 according to the present invention includes a communication unit 10, a protection unit 20, a measurement unit 30, a switch mode power supply 40, a control unit 50, and an input unit ( 60, an output unit 70, and a power supply unit 80 may be included.

However, not all of the components shown in FIG. 2 are essential components. The body portion 100 may be implemented as more components than the illustrated components, and the body portion 100 according to the present invention may be implemented by fewer components.

Hereinafter, the components of the main body 100 according to the present invention will be described.

The communication unit 10 may include one or more components for wireless communication between the main body 100 and the wireless communication system or wireless communication between the main body 100 and a network in which the main body 100 is located. For example, the communication unit 10 may include at least one of a mobile communication module (not shown), a CAN communication module (not shown), and a short range communication module (not shown).

The mobile communication module (or first communication module) transmits and receives a radio signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call signal, or a text / multimedia message. The mobile communication module supports wireless communication (e.g., WCDMA, 3G network, etc.) for linkage with a higher operating system (e.g., charging station central center) or neighboring charging devices. Such an operation may be performed through the short range communication module.

The CAN communication module (or second communication module) is for communication with an electric vehicle and receives state information from the electric vehicle. CAN communication stands for 'Controller Area Network' and is a communication method that sends and receives data by connecting several ECU (Electroinc Control Unit) in parallel.

In CAN communication, the communication line has two buses and floats data on the communication line to bring necessary data (adopted ISO 11898 communication method). The CAN protocol performs multi master communication and is very resistant to noise. It has fast communication speeds (up to 1 Mbps) and can communicate over long distances (eg up to 1000 m at 40 kbps).

The short range communication module (or third communication module) is a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), Zigbee (IEEE 802.15.4), and the like may be used.

The short range communication module according to the present invention performs wireless communication with an electric vehicle according to a Zigbee (IEEE 802.15.4) communication protocol.

ZigBee, defined as the communication protocol IEEE802.15.4, is a short-range low-speed wireless communication technology developed for home, building, and factory automation by enabling low cost and low power. IEEE 802.15.4 defines ZigBee's standards for PHY and MAC, and the ZigBee Alliance defines profiles for layers and applications beyond MAC.

When the electric vehicle enters the charging station, the short-range communication module attempts to communicate with the entering vehicle according to the Zigbee communication protocol, and when communication is established, receives information regarding the charger type from the entering vehicle.

In addition, the short-range communication module performs wireless communication of the RFID reader or smart card reader mounted on the main body 100 for user recognition or bill payment.

The protection unit 20 is a device for preventing an electrical accident (eg, short circuit, short circuit, etc.) of AC electricity that may occur in the charging device 300. It also detects physical and mechanical accidents in addition to electrical accidents. When an electrical (or physical or mechanical) accident occurs, the protection unit 20 reports this to the controller 50 and applies power to the emergency stop button of the input unit 60 so that the emergency stop button flashes.

The measurement unit 30 measures the amount of power supplied to the electric vehicle during charging, and measures the amount of power, voltage, current, and the like.

The switch-mode power supply 40 (hereinafter, referred to as SMPS) is a DC stabilized power supply widely used in electronic communication devices such as electronic calculators, electronic exchangers, and OA devices, and includes a charging device 300. Supply the necessary operating power by itself.

The input unit 60 generates input data for controlling the operation of the terminal according to a user's manipulation. The input unit 60 may include a key pad, a button, a dome switch, a jog wheel, a jog switch, and the like for inputting numbers or letters. When the output unit 70 is a touch screen, the output unit 70 may include an input unit 60. The input unit 60 includes an emergency stop button. When the emergency maintenance button is pushed, the charging device 300 stops operation and power supply flowing into the charging device 300 is cut off.

The output unit 70 is a display device such as an LCD (LCD), and outputs the information processed by the charging device 300 (for example, the amount of power measured by the measurement unit 30). For example, a UI (User Interface) or GUI (Graphic User Interface) related to the voltage, current, power amount, and the like processed by the charging device 300 is displayed. When the output unit 70 matches the charging type of the vehicle and the charging type of the charging device, the output unit 70 catches the driver's attention by performing a blinking like a lamp blinking according to the instruction of the controller 50.

Depending on the embodiment of the charging device 300 may be two or more output unit 70. For example, the plurality of output screens may be spaced apart or integrally disposed on one surface of the charging device 300, or may be disposed on different surfaces.

The power supply unit 80 is connected to a power supply line that enters through a wire entry hole of the base 200 and supplies power for charging.

The control unit 50 is a component (eg, communication unit 10, protection unit 20, measuring unit 30, SMPS 40, control unit 50, input unit 60, output unit 70) In conjunction with, to control the overall operation of the charging device (300).

When the vehicle enters the charging station, the controller 50 attempts to communicate with the vehicle through the short range communication module, and receives communication with the charger type from the vehicle when communication with the vehicle is established. The charger may be notified to the ingress vehicle by referring to the received information.

For example, the controller 50 blinks the lamp (or output unit 70) of the rechargeable charging device so that the driver of the vehicle knows which charging device is rechargeable. As another example, the controller 50 may transmit a number (unique number, identifier, etc.) of the rechargeable charger to the ingress vehicle, and the ingress vehicle may output a voice or a screen to allow the driver to recognize the ingress vehicle.

When the vehicle enters the charging station, when all the charging devices are charging the previously entered vehicles, the controller 50 may enter the remaining charge time together with the chargeable charging device information (eg, unique number, identifier, etc.). By transmitting to a vehicle in use, the driver can determine whether to simply wait at the charging station or move to another station.

Figure 3a is a perspective view of the base 200 according to the present invention, Figure 3b is a plan view of the base according to the present invention, Figure 3c is a cross-sectional view of the base according to the present invention.

As shown in Figures 3a to 3c, the base 200 according to the present invention is transverse so as to maintain a high tension and spacing between a plurality of (eg four) anchors 210 and the anchors 210. Anchor frame 220 to connect and restrain the anchors 210 in the direction or vertical direction, and anchor bolt 230 for binding the anchors 210 and the anchor frame 220, and cast in concrete, anchors It is composed of a filler 240 to bind the 210 and the anchor frame 220 in a structure. The filler 240 is placed in the concrete so that the wire entry hole 250 of the power supply line is formed in the center. As the filler 240, concrete may be replaced with any material as long as it has a material (eg, weight, strength, etc.) of concrete.

The base 200 according to the present invention is a concrete structure coupled to the main body part 100 by the anchor 210 and the anchor bolt 220, and is buried under the ground. In general, the anchoring method is connected with high strength steel (eg anchor 210) to fix the structure of civil engineering or construction on the ground, and maintains high tension in the steel so that the restraint force and transverse load in the transverse or vertical direction are applied to the structure. This is a method for adding.

Base 200 according to the present invention is coupled to the main body portion 100 by bolt binding, is produced integrally in the step of producing the charging device 300, is supplied to the construction site. Therefore, in the construction site, only the trench construction according to the specification of the filling device 300 according to the present invention is made only, because no separate tooling work or concrete drying work such as concrete placement is unnecessary, cost and time are greatly reduced and weather conditions Regardless of the installation work can be carried out.

3D is a cross-sectional view of the base according to another embodiment of the present invention, and relates to a case in which any one of the anchors 210 is used as the ground.

In general, electrical installations are grounded for electrical safety. Grounding works include construction that connects the building ground and grounding directly to the ground using ground rods.

In case of the construction which is grounded directly to the ground by using ground rod, the slow charger should be installed with 3 types of ground (less than 100Ω), and the rapid charger should be installed with special 3 types of ground (less than 10Ω). Since the charger is used by an unspecified number of people, it is desirable to install all three kinds of grounds for safety reasons.

When constructing the grounding work using the ground rod, the grounding wire should be buried to a depth of more than 0.75m in the ground and the metal pipe work (if it is an insulated wire) to prevent the trauma up to 1m above the ground.

Figure 4a is a view showing a skeleton of the base 200 according to the present invention, showing the base 200 before placing concrete. And, Figure 4b is a view of the connecting portion 120 for coupling the body portion 100 and the base 200. The connection part 120 is a part forming the bottom surface of the main body part 100, and as shown in FIG. 4B, as many coupling holes 122 as the number of anchors 210 formed for coupling with the anchors 210 are formed. The central hole 124 is formed in the center of the connection portion 120 to pass through the power supply line.

Coupling of the main body 100 and the base 200 is made through the connecting portion 120, as shown in Figure 4b. When the main body 100 is placed on the base 200, the anchors 210 protruding from the upper surface of the base 200 are inserted into the coupling holes 122 of the connection part 120, and the anchors 210 are inserted into the anchors 210 in the state. When the bolt is inserted, the main body 100 forms a coupling with the base 200.

Figure 4c is an exemplary view showing another form of the charging device 300 according to the present invention.

In the charging device 300 according to the present example, as shown in FIG. 4C, the pillar-shaped connecting part 120 supports the body part 100 between the body part 100 and the base 200.

Figure 5 is an illustration of the operation of the electric vehicle charging apparatus according to the present invention.

This example relates to the operation of the charging device 300 when the electric vehicle enters the charging station for charging.

As shown in FIG. 5, when the electric vehicle enters the charging station, first, the main body 100 attempts to establish communication with the vehicle through the short range communication module. (The main body 100 will be the controller 50 of the charging device 300 that first detects the entrance of the charging station of the electric vehicle.) When the communication with the electric vehicle is established, the controller 50 charges the vehicle. Request information about the type (eg 3.3kW or 6.6kW) and the charging type information is transmitted to all the charging devices of the charging station.

When the information on the charging type is received from the ingress vehicle, the controller 50 first determines whether the charging type of the ingress vehicle and the charging type of the corresponding charging device match. When the charging types match, the controller 50 controls the output unit 70 to perform blinking such as flashing of a lamp. The output unit 70 may display charging type information (for example, 3.3 kW or 6.6 kW, etc.) with blinking.

When the electric vehicle enters the charging station, when all the charging devices are charging the previously entered vehicles, the controller 50 may enter the remaining charge time together with the charger information (eg, unique number, identifier, etc.) that can be charged. The vehicle may be transferred to a vehicle in progress and the driver may output the voice or screen to the driver. By transmitting the remaining charge time to the vehicle being entered, the driver can determine whether to simply wait at the charging station or move to another charging station.

When delivering the remaining charge time, it is preferable to transmit the identification information (eg, unique number, identifier, etc.) and the remaining time of the charging device having the least remaining charge time.

In the present invention, it is preferable to paint the vehicle charging device in different colors according to the charging type (eg, 3.3 kW or 6.6 kW) so that the vehicle driver can easily identify the charging type of the charging device. During the day when color identification is possible, the driver of the vehicle can easily identify the desired charging device from a distance. In addition, in the case of an electric vehicle that cannot communicate with the charging device 300 according to the present invention, the driver can visually identify the charging type of the charging device.

Although the present invention has been described with reference to the embodiment (s) shown in the drawings, this is merely exemplary, and various modifications can be made therefrom by those skilled in the art, and the embodiments described above ( It will be appreciated that all or some of these may be optionally combined. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

As described above, the vehicle charging device according to the present invention allows the driver entering the charging station to easily identify the charging type of the charging device by wireless communication or the naked eye even at a long distance, so that the charging station can be more conveniently used.

In addition, the present invention by supplying the filling device 300 made in one piece by combining the base 200 buried below the ground with the main body 100 to the construction site, the tooling work (concrete placement, etc.) or concrete at the construction site Without the cumbersome procedures such as drying work, only the burr construction that meets the specifications of the charging device is carried out, greatly reducing the cost and time, and allows workers to easily perform the installation of the charging device regardless of weather conditions.

10: communication unit 20: protection unit
30 measurement unit 40 switch mode power supply
50: control unit 60: input unit
70: output unit 80: power supply unit
100: main body 120: coupling hole
140: center hole 200: base
210: anchor 220: anchor frame
230: anchor bolt 240: filler
250: wire entry hole 300: charging device

Claims (7)

A wireless communication unit 10 configured to establish wireless communication with an entry vehicle when the vehicle enters a charging station, and receive information on a charging type of the vehicle from the entry vehicle;
A controller 50 which compares the charging type of the on-vehicle with the charging device with reference to the received information and determines whether it is chargeable;
When the vehicle is chargeable, electric vehicle charging characterized in that it comprises an output unit 70 for outputting a signal that can be confirmed with the naked eye of the driver in accordance with the instructions of the controller to attract the attention of the driver Device. The method of claim 1, wherein the output unit 70
If the vehicle is chargeable, the electric vehicle charging device, characterized in that to display the identification information and type and capacity of the charging device so that the driver can recognize. The method of claim 1,
A power supply unit 80 that receives power for charging through a wire entry hole;
A measurement unit 30 measuring the amount of power supplied to the vehicle when charging starts;
A protection unit 20 for preventing an electrical accident such as a short circuit or a short circuit that may occur in the charging device;
Electric vehicle charging apparatus characterized in that it further comprises an input unit 60 for performing the input of numbers or letters according to the user's operation. The method of claim 1, wherein the controller 50
When all the charging device is charging the vehicle when the vehicle enters the charging station, the electric vehicle charging device, characterized in that for transmitting the identification information of the charging device with the least remaining remaining time and the remaining charging time to the vehicle that is entering. The method of claim 1, wherein the controller 50
The electric vehicle charging device, characterized in that when the vehicle enters the charging station to display the current state information of the charging device through the output unit. The method of claim 1, wherein the wireless communication unit 10
A mobile communication module for wireless communication with an upper operating system or neighboring charging devices;
When the vehicle enters the charging station, the electric vehicle charging comprises a Bluetooth or zigbee communication module configured to establish communication with the entry vehicle and receive information on the type and capacity of the charger from the entry vehicle. Device. The method of claim 1, wherein the charging device 300
An electric vehicle charging device characterized by being painted in different colors according to the charging type, so that the vehicle driver can visually identify the type and capacity of the charging device.

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