CN107487214A - New-energy automobile charging pile at a slow speed - Google Patents

Abstract

The invention discloses a slow charging pile for new energy vehicles. The power module is provided with a switching power supply, a power meter, a charging pile socket and an AC contactor, the control module is provided with a main control board, and the output end of the power meter is electrically connected to the input end of the switching power supply. The charging gun is provided with an AC output line, and the AC output line is externally connected to the charging interface of the new energy vehicle. The car charging interface provides AC output. The present invention ensures the safe and reliable AC output of the slow charging pile through various methods, realizes the human-computer interaction between the slow charging pile and the user through various methods, reduces the user's learning cost, and improves the ease of use of the slow charging pile. usability and maintainability.

Description

Slow charging pile for new energy vehicles

technical field

The invention belongs to the technical field of charging equipment, and in particular relates to a slow charging pile for new energy vehicles.

Background technique

New energy vehicles represented by plug-in vehicles and pure electric vehicles are driven by industrial policies and consumer demand, and their popularity is becoming increasingly obvious. Unlike gasoline engines or diesel engines that require regular refueling, new energy vehicles such as plug-in vehicles and pure electric vehicles require regular charging.

In order to meet the increasingly strong charging demand of consumers, in addition to personal charging piles, public charging piles have been rapidly popularized. While plug-in vehicles and pure electric vehicles bring convenience to consumers, they generally have defects, which are mainly reflected in the limited capacity of the batteries/batteries they carry, and the cruising range is correspondingly limited. Consumers generally report that there is insufficient power or that it is difficult to find safe and standardized charging equipment.

For this reason, it is necessary to propose a new type of charging pile that can fully meet the charging needs of consumers while ensuring its safety and reliability.

Contents of the invention

Aiming at the state of the prior art, the present invention provides a slow charging pile for new energy vehicles in order to overcome the above defects.

The present invention adopts the following technical scheme, the slow charging pile for new energy vehicles includes a power module and a control module, the power module is provided with a switching power supply, a power meter, a charging pile socket and an AC contactor, and the control module A main control board is provided, the input end of the electricity meter is externally connected to the grid power supply through the terminal, the output end of the electricity meter is electrically connected with the input end of the switching power supply, and the output end of the electricity meter At the same time, it is electrically connected to the input end of the AC contactor, the output end of the AC contactor is electrically connected to the input end of the charging pile socket, and the output end of the AC contactor is electrically connected to the first input interface of the main control board at the same time, The output end of the charging pile socket is electrically connected to the second input interface of the main control board, and the output end of the switching power supply is electrically connected to the third input interface of the main control board;

Charging gun, the charging gun is provided with an AC output line, the AC output line is externally connected to the charging interface of the new energy vehicle, the output end of the charging pile socket is electrically connected to the AC output line of the charging gun at the same time, and the The above new energy vehicle charging interface provides AC output.

According to the above technical solution, the electricity meter is provided with a voltage acquisition circuit and a current acquisition circuit, and the voltage and current acquisition circuits respectively acquire and output voltage signals and current signals, and the main control board is provided with the above-mentioned first input interface. There is an opening and closing circuit, and the opening and closing circuit obtains the above-mentioned voltage signal and current signal and turns on or off the AC output of the charging pile socket according to the above-mentioned voltage signal and current signal.

According to the above technical solution, the main control board is also provided with a backup opening and closing circuit on the first input interface, and the backup opening and closing circuit obtains the above voltage signal and current signal at the same time and conducts according to the above voltage signal and current signal Or turn off the AC output of the AC output line.

According to the above technical solution, the main control board is further provided with a charging connection confirmation circuit on the second input interface, and the charging connection confirmation circuit is used to detect the electrical connection between the AC output line and the charging interface of the new energy vehicle.

According to the above technical solution, the main control board is further provided with a working power interface circuit on the third input interface, and the output end of the switching power supply is electrically connected to the working power interface circuit through the third input interface.

According to the above technical solution, the output voltage of the switching power supply is 24V.

According to the above technical solution, the slow charging pile for new energy vehicles also includes a protection module, the protection module is provided with a leakage protector and an overvoltage protector, and the leakage protector is arranged between the input end of the electricity meter and the Between the connection terminals, the overvoltage protector is connected in parallel with the leakage protector; the protection module is also provided with a surge protector, and the main control board is also provided with a fourth input interface, and the main control board is located above The fourth input interface is also provided with a surge protection circuit, and the surge protector is electrically connected to the surge protection circuit through the fourth input interface; the protection module is also provided with an emergency stop button, and the main control board is also provided with a second Five input interfaces, the main control board is also provided with an emergency stop protection circuit on the fifth input interface, and the emergency stop button is electrically connected to the emergency stop protection circuit through the fifth input interface.

According to the above technical solution, the slow charging pile for new energy vehicles also includes an interactive module, the interactive module is provided with a touch display screen, and the main control board is also provided with a first input and output interface. The above-mentioned first input and output interface is also provided with an information processing circuit, and the touch display screen and the electricity meter are electrically connected to the information processing circuit through the first input and output interface at the same time, and the information processing circuit is used for temporarily storing data information. The touch screen reads and displays the above-mentioned data information; the interactive module also includes a card reader, and the main control board is also provided with a second input and output interface, and the main control board is also provided with a second input and output interface on the above-mentioned second input and output interface. The card information read-write circuit, the card reader is electrically connected to the card information read-write circuit through the second input and output interface; the interactive module also includes an indicator light, and the main control board is also provided with a third input and output interface, the The indicator light is electrically connected to the information processing circuit through the third input and output interface.

According to the above technical solution, the above data information includes but not limited to charging voltage, charging current, charging time, consumption cost, and the indicator lights include a power indicator light, a charging status indicator light, a fault indicator light and an emergency stop indicator light.

According to the above technical solution, the slow charging pile for new energy vehicles also includes a communication module, the communication module is provided with a wireless transmitter and a wireless receiver, and the communication module sends or receives data through the wireless transmitter and wireless receiver Information, the communication mode of the wireless transmitter and wireless receiver includes but not limited to GSM, GPRS, CDMA, WCDMA, LTE, WIFI, Bluetooth.

The beneficial effect of the slow charging pile for new energy vehicles disclosed by the present invention is to ensure that the slow charging pile realizes safe and reliable AC output through various ways, and to realize the human connection between the slow charging pile and the user through various ways. Computer interaction reduces the user's learning cost and improves the ease of use and maintainability of slow charging piles.

Description of drawings

Fig. 1 is a system block diagram of a preferred embodiment of the present invention.

Reference signs include: 10-power supply module; 11-switching power supply; 12-watt-hour meter; 121-voltage acquisition circuit; 122-current acquisition circuit; 13-charging pile socket; 14-AC contactor; 15 terminal block; 20-control module; 21-main control board; 211-opening and closing circuit; 212-backup opening and closing circuit; 213-charging connection confirmation circuit; 214-working power interface circuit; 215-surge protection circuit; 216-emergency Stop protection circuit; 217-information processing circuit; 218-card information reading and writing circuit; 30-protection module; 31-leakage protector; 32-overvoltage protector; 33-surge protector; 34-emergency stop button; 40 -interactive module; 41-touch display; 42-indicator; 421-power indicator; 422-charging status indicator; 423-fault indicator; 424-emergency stop indicator; 43-card reader; 50-communication Module; 51-wireless transmitter; 52-wireless receiver; 60-charging gun; 61-AC output line.

detailed description

The invention discloses a slow charging pile for new energy vehicles. The specific implementation of the invention will be further described below in combination with preferred embodiments.

Referring to Figure 1 of the accompanying drawings, Figure 1 shows the modular structure of the slow charging pile for new energy vehicles. Preferably, the slow charging pile for new energy vehicles includes a power module 10 and a control module 20, and the power module 10 is provided with a switching power supply 11, a power meter 12, a charging pile socket 13 and an AC contactor 14. The control module 20 is provided with a main control board 21 . Wherein, the input end of the electricity meter 12 is externally connected to the grid power supply through the terminal 15, the output end of the electricity meter 12 is electrically connected to the input end of the switching power supply 11, and the output of the electricity meter 12 terminal is electrically connected to the input end of the AC contactor 14 at the same time, the output end of the AC contactor 14 is electrically connected to the input end of the charging pile socket 13, and the output end of the AC contactor 14 is simultaneously connected to the first terminal of the main control board 21. An input interface is electrically connected, the output end of the charging pile socket 13 is electrically connected to the second input interface of the main control board 21 , the output end of the switching power supply 11 is electrically connected to the third input interface of the main control board 21 .

Preferably, the slow charging pile for new energy vehicles also includes a charging gun 60, the charging gun 60 is provided with an AC output line (charging head) 61, and the AC output line 61 is externally connected to the charging interface of the new energy vehicle, so The output end of the charging pile socket 13 is electrically connected to the AC output line 61 of the charging gun 60 at the same time, and provides AC output to the charging interface of the new energy vehicle through the AC output line 61 .

Preferably, the watt-hour meter 12 is provided with a voltage acquisition circuit 121 and a current acquisition circuit 122, and the voltage and current acquisition circuits 121, 122 respectively acquire and output voltage signals and current signals, and the main control board 21 is in the above-mentioned first The input interface is provided with an opening and closing circuit 211, and the opening and closing circuit 211 acquires the above-mentioned voltage signal and current signal and turns on or off the AC output of the charging pile socket 13 according to the above-mentioned voltage signal and current signal.

Further, the main control board 21 is also provided with a backup opening and closing circuit 212 at the above-mentioned first input interface, and the backup opening and closing circuit 212 simultaneously obtains the above-mentioned voltage signal and current signal and conducts a circuit according to the above-mentioned voltage signal and current signal. The AC output of the AC output line 61 is turned on or off.

Preferably, the main control board 21 is further provided with a charging connection confirmation circuit 213 on the second input interface, and the charging connection confirmation circuit 213 is used to detect the electrical connection between the AC output line 61 and the charging interface of the new energy vehicle. Optionally, the charging connection confirmation circuit 213 can continuously output microcurrent through the AC output line 61. When the new energy vehicle charging interface and the AC output line 61 are electrically connected to each other, the charging connection confirmation circuit 213 can continuously detect For the above-mentioned micro-current, when it is detected that the duration of the above-mentioned micro-current exceeds a preset duration, it can be determined that an electrical connection has been established between the AC output line 61 and the slow charging pile for new energy vehicles.

Preferably, the main control board 21 is further provided with a working power interface circuit 214 at the third input interface, and the output end of the switching power supply 11 is electrically connected to the working power interface circuit 214 through the third input interface. Wherein, the output voltage of the switching power supply 11 is 24V. In other words, the working voltage of the working power interface circuit 214 is 24V.

Preferably, the slow charging pile for new energy vehicles further includes a protection module 30 , and the protection module 30 is provided with a leakage protector 31 and an overvoltage protector 32 . Wherein, the leakage protector 31 is arranged between the input end of the electricity meter 12 and the connection terminal 15, and the overvoltage protector 32 is connected in parallel with the leakage protector 31, so as to stop the AC output in time when an accident occurs. AC output on line 61.

Preferably, the protection module 30 is also provided with a surge protector 33, the main control board 21 is also provided with a fourth input interface, and the main control board 21 is also provided with a surge protection circuit on the fourth input interface 215. The surge protector 33 is electrically connected to the surge protection circuit 215 through the fourth input interface, so as to stop the AC output of the AC output line 61 in time when an unexpected event occurs.

Preferably, the protection module 30 is also provided with an emergency stop button 34, the main control board 21 is also provided with a fifth input interface, and the main control board 21 is also provided with an emergency stop protection circuit 216 on the fifth input interface , the emergency stop button 34 is electrically connected to the emergency stop protection circuit 216 through the fifth input interface, so as to stop the AC output of the AC output line 61 in time when an unexpected event occurs.

Preferably, the slow charging pile for new energy vehicles also includes an interactive module 40, the interactive module is provided with a touch display 41, the main control board 21 is also provided with a first input and output interface, and the main control board 21 An information processing circuit 217 is also provided on the first input and output interface, and the touch screen 41 and the electricity meter 12 are electrically connected to the information processing circuit 217 through the first input and output interface at the same time. Wherein, the information processing circuit 217 is used for temporarily storing data information such as voltage signals provided by the touch screen 41 and/or the electricity meter 12 . Wherein, the touch screen 41 reads and displays the above data information. Wherein, the above-mentioned data information includes but not limited to charging voltage, charging current, charging time, consumption cost.

Preferably, the interactive module also includes a card reader 43, the main control board 21 is also provided with a second input and output interface, and the main control board 21 is also provided with a card information read-write circuit on the second input and output interface 218, the card reader 43 is electrically connected to the card information reading and writing circuit 218 through the second input and output interface.

Preferably, the interactive module further includes an indicator light 42, and the main control board 21 is also provided with a third input and output interface, and the indicator light 42 is electrically connected to the information processing circuit 217 through the third input and output interface, and the indication The lights 42 include a power indicator 421 , a charging status indicator 422 , a fault indicator 423 and an emergency stop indicator 424 .

Preferably, the slow charging pile for new energy vehicles also includes a communication module 50, the communication module 50 is provided with a wireless transmitter 51 and a wireless receiver 52, and the communication module 50 passes the wireless transmitter 51 and the wireless receiver 52 Send or receive data information to realize data communication and control command transmission. Wherein, the communication modes of the wireless transmitter 51 and the wireless receiver 52 include but not limited to GSM, GPRS, CDMA, WCDMA, LTE, WIFI, Bluetooth.

It is worth mentioning that the above preferred embodiments may also include modified implementations. For example, the main control board 21 can also hide various input/output interfaces and be directly electrically connected with electrical appliances. For example, the output end of the switching power supply 11 is directly electrically connected to the working power interface circuit 214 .

Optionally, the main control board 21 can also be provided with a microprocessor controller, which replaces the above-mentioned specific circuits of the main control board, for example, the microprocessor controller realizes the connection confirmation function of the charging connection confirmation circuit 213 .

For those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modifications made within the spirit and principles of the present invention, Equivalent replacements, improvements, etc., should all be included in the protection scope of the present invention.

Claims (10)

1. A kind of 1. new-energy automobile charging pile at a slow speed, it is characterised in that including：

   Power module and control module, the power module are provided with Switching Power Supply, watt-hour meter scale, charging pile socket and connect with exchanging Tentaculum, the control module are provided with master board, and the input of the watt-hour meter scale is external in power network electricity by binding post Source, the output end of the watt-hour meter scale electrically connect with the input of Switching Power Supply, and the output end of the watt-hour meter scale is simultaneously Being electrically connected with the input of A.C. contactor, the output end of the A.C. contactor electrically connects with the input of charging pile socket, The output end of the A.C. contactor electrically connects with the first input interface of master board simultaneously, the output of the charging pile socket End electrically connects with the second input interface of master board, the output end of the Switching Power Supply and the 3rd input interface of master board Electrical connection；

   Charging gun, the charging gun are provided with exchange outlet line, and the exchange outlet line is external in new-energy automobile charging Mouthful, the output end of the charging pile socket exchanges outlet line electrical connection with charging gun simultaneously, by exchange outlet line to Above-mentioned new-energy automobile charging inlet provides exchange output.
2. 2. new-energy automobile according to claim 1 charging pile at a slow speed, it is characterised in that the watt-hour meter scale is provided with Voltage collection circuit and current collection circuit, the voltage and current Acquisition Circuit gathers respectively and output voltage signal and electricity Signal is flowed, the master board is provided with sub-switch circuit in above-mentioned first input interface, and the sub-switch circuit obtains above-mentioned electricity Press signal to be turned on current signal and according to above-mentioned voltage signal and current signal or to turn off exchanging for charging pile socket defeated Go out.
3. 3. new-energy automobile according to claim 2 charging pile at a slow speed, it is characterised in that the master board is above-mentioned First input interface is additionally provided with standby sub-switch circuit, and the standby sub-switch circuit obtains above-mentioned voltage signal and electric current simultaneously Signal and the exchange output for exchanging outlet line with current signal conducting or shut-off according to above-mentioned voltage signal.
4. 4. the new-energy automobile according to any claim in claims 1 or 2 is with charging pile, its feature exist at a slow speed In the master board is additionally provided with charging connection in above-mentioned second input interface and confirms circuit, and the charging connection confirms circuit For detecting the electrical connection between exchange outlet line and new-energy automobile charging inlet.
5. 5. the new-energy automobile according to any claim in claims 1 or 2 is with charging pile, its feature exist at a slow speed In the master board is additionally provided with working power interface circuit, the output end of the Switching Power Supply in above-mentioned 3rd input interface Electrically connected by the 3rd input interface with working power interface circuit.
6. 6. new-energy automobile according to claim 5 charging pile at a slow speed, it is characterised in that the output of the Switching Power Supply Voltage is 24V.
7. 7. the new-energy automobile according to any claim in claims 1 or 2 is with charging pile, its feature exist at a slow speed In the new-energy automobile also includes protection module with charging pile at a slow speed, and the protection module is provided with earth leakage protective device and overvoltage Protector, the earth leakage protective device are arranged between the input and binding post of watt-hour meter scale, the overvoltage protector with Earth leakage protective device is connected in parallel；The protection module is additionally provided with Surge Protector, and the master board is additionally provided with the 4th input and connect Mouthful, the master board is additionally provided with surge protection circuit in above-mentioned 4th input interface, and the Surge Protector is defeated by the 4th Incoming interface electrically connects surge protection circuit；The protection module is additionally provided with scram button, and it is defeated that the master board is additionally provided with the 5th Incoming interface, the master board are additionally provided with jerk protection circuit in above-mentioned 5th input interface, and the scram button passes through the 5th Input interface electrically connects jerk protection circuit.
8. 8. the new-energy automobile according to any claim in claims 1 or 2 is with charging pile, its feature exist at a slow speed In the new-energy automobile also includes interactive module with charging pile at a slow speed, and the interactive module is provided with touch display screen, the master Control panel is additionally provided with the first input/output interface, and the master board is additionally provided with information processing in above-mentioned first input/output interface Circuit, the touch display screen and watt-hour meter scale electrically connect information-processing circuit, institute by the first input/output interface simultaneously State information-processing circuit and be used for temporal data information, the touch display screen reads and shows above-mentioned data message；The friendship Mutual module also includes card reader, and the master board is additionally provided with the second input/output interface, and the master board is above-mentioned second Input/output interface is additionally provided with card image read/write circuit, and the card reader electrically connects card by the second input/output interface and believed Cease read/write circuit；The interactive module also includes indicator lamp, and the master board is additionally provided with the 3rd input/output interface, the finger Show that lamp electrically connects information-processing circuit by above-mentioned 3rd input/output interface.
9. 9. new-energy automobile according to claim 8 charging pile at a slow speed, it is characterised in that above-mentioned data message include but Charging voltage, charging current, charging duration, consumption charge are not limited to, the indicator lamp includes power supply indicator, charged state refers to Show lamp, malfunction indicator lamp and jerk indicator lamp.
10. 10. new-energy automobile according to claim 1 charging pile at a slow speed, it is characterised in that the new-energy automobile is used Charging pile also includes communication module at a slow speed, and the communication module is provided with wireless launcher and wireless receiver, the communication module Data message is sent or received by wireless launcher and wireless receiver, and the wireless launcher and wireless receiver lead to News mode includes but is not limited to GSM, GPRS, CDMA, WCDMA, LTE, WIFI, Bluetooth.