CN203352211U - Alternating current charging post and a control system thereof - Google Patents

Abstract

The utility model discloses an AC charging pile and a control system for the AC charging pile. The AC charging pile of the utility model includes: a charging pile body; a main control circuit arranged in the charging pile body; a wireless communication module arranged in the charging pile body and connected with the main control circuit for transmitting the AC charging pile status information. Through the utility model, the user can remotely obtain the use condition of the AC charging pile, which facilitates the use of the user.

Description

AC charging pile and AC charging pile control system

technical field

The utility model relates to the technical field of charging piles, in particular to an AC charging pile and a control system for the AC charging pile.

Background technique

The function of the AC charging pile is similar to the refueling machine in the gas station. It can be fixed on the ground and installed in public buildings (such as public buildings, shopping malls, public parking lots, etc.) The electric vehicle of the charger is used, the input end of the AC charging pile is directly connected with the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. On the human-computer interaction interface provided by the charging pile, you can use a specific charging card to swipe the card to perform corresponding operations such as charging mode, charging time, and cost data printing. The display screen of the charging pile can display data such as charging amount, cost, and charging time.

AC charging pile, also known as AC power supply device, is fixedly installed outside the electric vehicle and connected to the AC power grid. The AC charging pile only provides power output and needs to be connected to the on-board charger to charge the electric vehicle.

AC charging piles usually have the following functions:

1. Can provide AC power supply capability.

2. It has protection functions such as leakage, short circuit, overvoltage, undervoltage, and overcurrent to ensure the safe and reliable operation of the charging pile.

3. It has the necessary man-machine interface for display and operation.

4. AC charging metering.

5. Set up card swiping interface, support RFID card, IC card and other common card swiping methods, and can configure printer to provide bill printing function.

6. It has complete safety protection measures such as connection status judgment and control guidance of the charging interface.

The power requirements of the AC charging pile are: the input voltage is single-phase AC220V±10%; the output frequency is 50Hz±2%; the output is AC (AC) 220V/7KW.

At present, most of the popular AC charging pile products on the market are large and floor-standing. The large, floor-standing AC charging pile wastes space and equipment costs both in the internal space and in the external size, and in the prior art, most of the charging indicators of the AC charging pile are ordinary LED lights. It is easy to be damaged for a period of time, which is not conducive to popularization. In actual use, due to the inability to remotely obtain the usage status of AC charging piles in advance, it often happens that some AC charging piles are idle, while other parts of AC charging piles have many users waiting in line to use them.

Aiming at the problem that the usage status of the AC charging pile cannot be obtained remotely in the prior art, no effective solution has been proposed yet.

Utility model content

The main purpose of the utility model is to provide an AC charging pile and an AC charging pile control system to solve the problem in the prior art that the usage status of the AC charging pile cannot be obtained remotely.

In order to achieve the above purpose, according to one aspect of the present utility model, an AC charging pile is provided. The AC charging pile according to the utility model includes: a charging pile body; a main control circuit arranged in the charging pile body; a wireless communication module arranged in the charging pile body and connected with the main control circuit for transmission Status information of the AC charging pile.

Further, the wireless communication module is a communication module using GPRS data communication service.

Further, the AC charging pile also includes: a status indicator light, which is installed on the charging pile body and connected with the main control circuit, and is used to display the status of the AC charging pile.

Further, the status indicator light is a full-color LED light.

Further, the main control circuit includes: a switching power supply; an output contactor connected between the AC power grid and the charging interface for controlling the on and off of charging; an output contactor control circuit connected with the output contactor , The output contactor control circuit includes a contactor coil for controlling the on and off of the output contactor.

Further, the main control circuit also includes: an air switch, connected between the AC charging pile and the AC grid, for providing short-circuit protection for the main control circuit; A-type leakage protection device, connected with the air switch, for providing short-circuit protection for the main control circuit; The control circuit provides leakage protection; and the lightning arrester is connected with the air switch to provide overvoltage protection for the main control circuit.

Further, the AC charging pile also includes: a card reader connected to the main control circuit for reading information of the charging card.

Further, the AC charging pile also includes: an electric meter, which is connected to the main control circuit and used to measure the charging power.

In order to achieve the above purpose, according to another aspect of the present utility model, a control system for an AC charging pile is provided.

The AC charging pile control system according to the present invention includes: a background server; a user terminal connected to the background server through a wireless network; and an AC charging pile connected to the background server through a wireless network.

The utility model solves the problem in the prior art that the usage status of the AC charging pile cannot be obtained remotely, so that the user can remotely obtain the usage status of the AC charging pile, which facilitates the use of the user.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a schematic structural diagram of an AC charging pile according to an embodiment of the present invention;

Fig. 2 is a main control circuit diagram of an AC charging pile according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of a charging process of an AC charging pile according to an embodiment of the present invention; and

Fig. 4 is a schematic diagram of an AC charging pile control system according to an embodiment of the present invention.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The utility model provides an AC charging pile. Fig. 1 is a schematic diagram of the structure of an AC charging pile according to an embodiment of the present invention. As shown in FIG. 1 , the AC charging pile mainly includes a charging pile body 10 , a main control circuit and a wireless communication module 121 . The main control circuit is set in the body of the charging pile. The wireless communication module 121 is arranged in the charging pile body and connected with the main control circuit for transmitting the status information of the AC charging pile.

For the wireless communication module 121, preferably, a communication module of the GPRS data communication service can be used, so that the AC charging pile can communicate through the wireless communication module 121 using the GPRS data communication service, so that the AC charging pile can communicate at a higher communication data transmission rate. It is fast and also reduces equipment costs and communication costs.

In the AC charging pile provided in this embodiment, due to the addition of the wireless communication module 121, the status information of the AC charging pile (such as whether it is in use, whether there is an appointment, whether it is idle, etc.) charging pile control station), the background server will send the status information of the AC charging pile to the user, so that the user can remotely obtain the usage status of the AC charging pile, which is convenient for the user, and at the same time achieves the convenience of unifying the charging station management effect.

Preferably, the AC charging pile in this embodiment further includes a status indicator light 11, which is installed on the charging pile body 10 and connected to the main control circuit for displaying the status of the AC charging pile. The addition of the status indicator light 11 enables the user to know the status of the AC charging pile concisely, accurately and quickly, and improves the use efficiency of the AC charging pile.

Preferably, the status indicator light 11 of the AC charging pile in this embodiment adopts a colorful light designed with full-color LED lights, and the current working state of the AC charging pile can be judged by the display of the colorful light. The color description of the indicator light corresponding to the state of the AC charging pile is shown in Table 1:

Table 1

AC charging pile status Status Light Color stand-by green light waiting for connection Blue light always flashing connected Blue light is always on Charge solid yellow light reserve Purple light is always on disabled White light is always on Fault Steady red light Invalid operation Red light keeps flashing

The display colors corresponding to the various states of the AC charging pile can also be combined in other ways, and the display ways described in Table 1 do not constitute an improper limitation of the present invention.

In the AC charging pile provided in this embodiment, since the colorful lights are added, and the colorful lights are brightly colored and have obvious color differences, the effect of being able to easily distinguish the working status of the AC charging pile is achieved. At the same time, the colorful lamp has a long service life and is not easy to be damaged, which reduces the cost of repair and maintenance. In addition, the status of the AC charging pile can also be expanded. When the function needs to be expanded, other colors or color changes can be added according to the expanded function to correspond to the expanded status display.

As shown in FIG. 1 , the AC charging pile of this embodiment also includes a main control board 12 , a card reader 13 , an electric meter 14 and a charging interface 15 . The main control board 12 of the above-mentioned equipment, the card reader 13 , the electric meter 14 and the charging interface 15 are all arranged in the AC charging pile body 10 . The main control board 12 is the main control center of the AC charging pile, and is used to control the work of other devices. The main control board 12 includes a main control circuit and a wireless communication module 121, wherein the wireless communication module is used to transmit the information of the AC charging pile. Status information (such as whether it is in use, whether it has an appointment, whether it is idle, etc.). The card reader 13 is connected with the main control circuit, and is used to read the information of the charging card (such as whether the charging card is valid), wherein the charging card can be an RFID card, an IC card, and the like. The addition of the card reader 13 enables the AC charging pile to automatically identify the user. The electric meter 14 is used to measure the charging power, and the electric meter 14 starts measuring at the same time of charging. After the charging is completed, the electric meter sends the measured electric quantity information to the main control board 12 through 485 communication; the charging interface 15 is used to provide an AC power output port for the external electric vehicle .

Fig. 2 is a main control circuit diagram of the AC charging pile according to the embodiment of the present invention. As shown in Fig. 2, the main control circuit of the AC charging pile in this embodiment includes: a switching power supply S1, an output contactor 1KM and an output contactor control circuit. The switching power supply S1 is connected to the AC to provide power to the main control board 12, and the main control board 12 provides the electric energy of the switching power supply S1 to the card reader 13, the status indicator light 11 and the wireless communication module 121; the output contactor 1KM Connected between live line L and neutral line N of the AC power grid, used to control the power supply of the grid to the AC charging pile on and off; the output contactor control circuit includes a contactor coil 1KM-1, which is used to control the output contactor 1KM on and off. When the contactor coil 1KM-1 has current passing through, the output contactor 1KM pulls in, and the grid starts to provide electric energy to the AC charging pile. When the charging interface 15 is connected to the vehicle charger, the charging car can be charged. The air circuit of the output contactor of the main control circuit also includes a manual switch SA and a switch K, and the manual switch SA, the switch K and the output coil 1KM-1 are serially connected in series.

Preferably, the main control circuit further includes: an air switch QF, a type A leakage protection device and a lightning arrester BLQ. The air switch QF is connected between the AC charging pile and the AC power grid to provide short-circuit protection for the main control circuit. When a short-circuit fault occurs in the main control circuit of the AC charging pile, the air switch QF is disconnected, and the short circuit to the main control circuit has been reached. protective effect. The A-type leakage protection device is connected with the air switch to provide leakage protection for the main control circuit. When the main control circuit has leakage, the A-type leakage protection device will automatically cut off the connection with the AC grid to prevent the AC charging pile from being damaged due to leakage. And user's injury; Lightning arrester BLQ is connected with air switch, is used for providing overvoltage protection to described main control circuit. When the voltage at the current input terminal of the AC charging pile is too large, or when it is struck by lightning, the arrester BLQ can pray for the release of overvoltage energy and lightning, and protect the AC charging pile from being damaged due to excessive voltage.

At the same time, the AC charging pile of this embodiment simplifies the human-computer interaction interface, and all charging operation procedures and corresponding phenomena are written on the charging pile body, which can make the user perform charging operations more concisely, and is convenient for first-time users to perform faster. Learn the charging process; adopt modern automobile streamlined integration technology, optimize the structure of the AC charging pile, make the AC charging pile greatly improved in the occupied space, and its volume is equivalent to a wall-mounted air conditioner, making the AC charging pile of this embodiment It can be hung on the wall, which saves space and is conducive to quantitative production and popularization.

The charging process of this embodiment will be described in detail below according to FIG. 1 and FIG. 2 .

Since the card reader 13, the status indicator light 11 and the wireless communication module 121 are powered by the switching power supply S1, these devices are always in a working state. After the card reader 13 reads the charging card information, it first judges whether the charging card information is valid. If the charging card information is valid, the main control board 12 controls the conduction contactor coil 1KM-1, so that the output contactor 1KM conducts through the charging interface 15 to provide AC power to the external electric vehicle. When the main control circuit is turned on, the ammeter 14 starts to measure the charging quantity. During this process, the main control board 12 will control the display of the status indicator 11 according to the usage of the AC charging pile (for example, the green light is always on when it is not in use, and the yellow light is always on when it is charging, etc.). After the charging is completed, the main control board 12 can read the information of the electric meter through 485 communication, etc., and deduct the corresponding fee from the card according to the charging electric quantity actually used by the user. In addition, the main control board 12 sends the information such as the electric quantity, time and cost charged by the user to the background server through the GPRS data communication service by controlling the wireless communication module 121. way) to the user.

Fig. 3 is a schematic diagram of a charging process of an AC charging pile according to an embodiment of the present invention. As shown in Figure 3, first, the user sends the charging reservation information to the background server by using SMS (or MMS, email, etc.), and through the interaction between the background server and the data information of the AC charging pile, the AC charging pile that can be charged is known. , and go to charge according to the scheduled time.

When the card reader reads the user's charging card information, it first judges whether the charging card information is valid. If the charging card information is valid, it controls the charging main control circuit through the main control board, and provides AC power to the external electric vehicle through the charging interface. When the main control circuit is connected, the ammeter starts to measure the charging quantity. During this process, the main control board will control the display of the status indicator light according to the usage of the AC charging pile (for example, the green light is always on when it is in use, and the yellow light is always on when it is charging, etc.). After charging, the main control board can read the meter information through 485 communication and other methods, and deduct the corresponding fee from the card according to the actual charging power used by the user. In addition, by controlling the wireless communication module, the main control board sends information such as the user’s charging power, time and cost to the background server through GPRS data communication services, etc., and the background server can send the above information through SMS (or MMS, email and other similar communication methods) sent to the user.

According to an embodiment of the present invention, a control system for an AC charging pile is provided.

Fig. 5 is a schematic diagram of an AC charging pile control system according to an embodiment of the present invention. As shown in FIG. 5 , the AC charging pile control system includes: a background server; a user terminal connected to the background server through a wireless network; an AC charging pile connected to the background server through a wireless network. The background server, the user terminal and the AC charging pile can exchange reservation information, AC charging pile status information and charging information.

The status information of the AC charging pile (such as whether it is in use, whether there is an appointment, whether it is idle, etc.) can be sent to the background server in time through the wireless communication module. Status information of the AC charging pile. When the user needs to make an appointment for charging, the user terminal sends the appointment information to the background server to make an appointment, and the background server uses the data information on the usage of each AC charging pile sent back by the wireless communication module in the AC charging pile in each place to analyze the idle state. AC charging pile, and send the geographical information of the AC charging pile to the user terminal. At the same time, the background server locks the idle AC charging pile to the user through wireless communication, and other users will display that the operation is invalid. When the user finishes charging, the background server can send information such as the power, time and cost of the user's charging to the user by text message (or MMS, email, and other similar communication methods).

From the above description, it can be seen that in the AC charging pile of the present invention, due to the addition of a wireless communication module, the status information of the AC charging pile (such as whether it is in use, whether there is an appointment, whether it is idle, etc.) can be sent in time To the background server, the user can obtain information such as the usage status of the AC charging pile by making an appointment with the background server, so the purpose of enabling the user to remotely obtain the usage status of the AC charging pile is achieved, which is convenient for the user to use, and at the same time, achieves the convenience of charging The effect of the unified management of the site.

At the same time, since the AC charging pile of the utility model adds colorful lights, and the colorful lights have bright colors and obvious color differences, the effect of being able to easily distinguish the state of the AC charging pile is achieved. At the same time, the colorful lamp has a long service life and is not easy to be damaged, which reduces the cost of repair and maintenance. In addition, the status of the AC charging pile can also be expanded. When the function needs to be expanded, other colors or color changes can be added according to the expanded function to correspond to the expanded status display.

In addition, the AC charging pile of the embodiment of the utility model simplifies the human-computer interaction interface, and all charging operation procedures and corresponding phenomena are written on the charging pile body, which can make the user perform charging operations more concisely, and is convenient for first-time users Learn the charging process faster; adopt modern automobile streamlined integration technology, optimize the structure of the AC charging pile, so that the AC charging pile has a great improvement in the occupied space, and its volume is equivalent to a wall-mounted air conditioner, making the AC The charging pile can be hung on the wall, which saves space and is conducive to quantitative production and popularization.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. an alternating-current charging pile, is characterized in that, comprising:

The charging pile pile body;

Main control circuit, be arranged in described charging pile pile body; And

Wireless communication module, be arranged in described charging pile pile body, and be connected with described main control circuit, for transmitting the state information of described alternating-current charging pile.

2. alternating-current charging pile according to claim 1, is characterized in that, described wireless communication module is the communication module that adopts the GPRS data communication service.

3. alternating-current charging pile according to claim 1, is characterized in that, also comprises:

Status indicator lamp, be arranged on described charging pile pile body, and be connected with described main control circuit, for showing the state of described alternating-current charging pile.

4. alternating-current charging pile according to claim 3, is characterized in that, described status indicator lamp is full-color LED lamp.

5. alternating-current charging pile according to claim 1, is characterized in that, described main control circuit comprises:

Switching Power Supply;

Output contactor, be connected between AC network and charging inlet, for controlling the connecting and disconnecting of charging; And

The output contactor control circuit, be connected with described output contactor, and described output contactor control circuit comprises contactor coil, for controlling the connecting and disconnecting of described output contactor.

6. alternating-current charging pile according to claim 5, is characterized in that, described main control circuit also comprises:

Air switch, be connected between described alternating-current charging pile and described AC network, for the short-circuit protection to described main control circuit is provided;

A type earth leakage protective device, be connected with described air switch, for to described main control circuit, providing earth leakage protective; And

Lightning arrester, be connected with described air switch, for to described main control circuit, providing overvoltage protection.

7. alternating-current charging pile according to claim 1, is characterized in that, also comprises:

Card reader, be connected with described main control circuit, for reading the information of recharged card.

8. alternating-current charging pile according to claim 1, is characterized in that, also comprises:

Ammeter, be connected with described main control circuit, for measuring charge capacity.

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