Intelligent charging system for two-wheeled and three-wheeled electric vehicle

Abstract

The utility model provides an intelligent charging system for a two-wheeled and three-wheeled electric vehicle. The intelligent charging system comprises an upper computer and a plurality of charging areas, each charging area is provided with a wireless repeater, a plurality of charging piles, a camera and a charging monitoring terminal; the input end of the charging pile is connected to commercial power, and the output end of the charging pile is connected to the charging interface through the charging switch circuit; the controller obtains a charging starting instruction through the display touch screen, and is connected with the charging switch circuit to control the on-off of charging; the controller sends the charging duration information, the current information in the charging process, the voltage information and the electric energy information to the upper computer; in addition, smoke information and flame information of the charging pile are monitored, and alarm information is sent out when abnormity occurs. According to the utility model, the charging process of the two-wheeled and three-wheeled electric vehicle can be monitored, alarm can be carried out on anomalies such as over-charging, over-discharging, over-temperature and the like, smoke and flame can be detected in real time, and the safety of the charging process is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-wheel electric vehicles, and in particular relates to an intelligent charging system for two-wheel and three-wheel electric vehicles. Background Art

[0002] At present, electric tricycles and two-wheelers have brought great convenience to people's production and life, and electric tricycles and two-wheelers have also become one of people's main means of transportation. Electric tricycles and two-wheelers are three-wheeled transportation tools for pulling goods or people, which use batteries and motors to output power and are driven by motors. Electric tricycles and two-wheelers generally use tubular large-capacity, left and right linings, deep discharge, and traction batteries, which can meet the requirements of long-term work and continuous discharge.

[0003] When the existing electric tricycles and two-wheelers are in use, the batteries need to be charged to ensure the normal use of the electric tricycles and two-wheelers. When the electric tricycles and two-wheelers are charged, the charging port of the electric tricycles and two-wheelers is generally connected to an external power source through a charger for charging. After being fully charged, the charger disconnects the power supply.

[0004] During the current charging process, users cannot know the charging process information, such as charging current, voltage, electric energy, and charging time. If there are abnormalities in the charging process, such as overcurrent, overvoltage and other abnormal phenomena, it will cause abnormal charging, and in serious cases, it will cause a fire, affecting the safety of charging. How to obtain the charging process information in time, and give timely alarm feedback when an abnormality occurs, to ensure the smooth progress of the charging process and the safety of the charging process is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model provides an intelligent charging system for two-wheeled and three-wheeled electric vehicles. The system can effectively monitor the charging process to ensure the safety of the charging process.

[0006] The system includes: a host computer and multiple charging areas;

[0007] Each charging area is equipped with a wireless repeater, multiple charging piles, cameras, and a charging monitoring terminal;

[0008] A smoke sensor and a flame sensor are installed on the top of each charging pile;

[0009] The charging monitoring terminal includes: a controller, a display touch screen, a charging status detection module, a wireless communication module and a timing module;

[0010] The input end of the charging pile is connected to the mains, and the output end of the charging pile is connected to the charging interface through a charging switch circuit;

[0011] The controller obtains the charging start instruction through the display touch screen, and controls the charging on and off by connecting with the charging switch circuit;

[0012] The controller is connected to the charging interface through the charging state detection module to obtain the current information, voltage information and electric energy information of the charging process, and obtains the charging time information through the timing module, and displays it on the display touch screen, and also sends the charging time information, the current information, voltage information and electric energy information of the charging process to the host computer through the wireless communication module and the wireless repeater;

[0013] The controller obtains the charging video information captured by the camera through communication connection with the camera, and sends it to the host computer through the wireless communication module and the wireless repeater;

[0014] The controller obtains the smoke information and flame information of the charging pile by communicating with the smoke sensor and the flame sensor respectively, and sends an alarm message to the host computer through the wireless communication module and the wireless repeater when the smoke information exceeds the threshold or the flame information is detected.

[0015] It should be further explained that the charging state detection module includes: a voltage detection module, a current detection module and an electric energy detection module; the controller obtains the voltage information of the charging process by connecting with the voltage detection module;

[0016] The controller obtains the current information of the charging process by connecting with the current detection module;

[0017] The controller obtains the power information of the charging process by connecting with the power detection module.

[0018] It should be further explained that the power detection module includes: resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 and power detection chip U1;

[0019] The interface 4 of the power detection chip U1 is respectively connected to the second end of the resistor R2 and the first end of the capacitor C1; the first end of the resistor R2 is connected to the second end of the resistor R1; the first end of the resistor R1 and the first end of the resistor R3 are respectively connected to the first input end of the power detection module;

[0020] The second end of capacitor C1, the first end of capacitor C2, the second end of capacitor C5, the second end of capacitor C6, the second end of resistor R8, the second end of capacitor C3, the second end of resistor R9, the second end of capacitor C4 and the interface of power detection chip U1 are grounded respectively;

[0021] The second end of capacitor C2 and the second end of resistor R3 are respectively connected to interface 5 of electric energy detection chip U1; interface 8 of electric energy detection chip U1 is respectively connected to the second end of resistor R7, the first end of resistor R8 and the first end of capacitor C3; the first end of resistor R7 is connected to the second input end of electric energy detection module through resistor R6, resistor R5 and resistor R4; interface 9 of electric energy detection chip U1 is respectively connected to the first end of resistor R9 and the first end of capacitor C4; interface 12 of electric energy detection chip U1 is connected to power supply through resistor R10; interface 20 of electric energy detection chip U1 is respectively connected to the first end of crystal oscillator Y1 and the first end of capacitor C5; interface 19 of electric energy detection chip U1 is respectively connected to the second end of crystal oscillator Y1 and the first end of capacitor C6;

[0022] The power detection chip U1 uses the RN8209D chip.

[0023] It should be further explained that the voltage detection module includes: resistor R11, resistor R12 and resistor R13; the first end and the sliding end of resistor R11 are grounded respectively; the second end of resistor R11 is connected to the first end of resistor R12 and the first end of resistor R13 respectively; the second end of resistor R12 is connected to the power supply; the second end of resistor R13 is connected to the detection end.

[0024] It should be further explained that the current detection module includes: resistor R21, resistor R22, capacitor C11 and INA193AIDBVT current management chip U2; interface three of INA193AIDBVT current management chip U2, the first end of resistor R21, and the first end of resistor R22 are respectively connected to the input end of the current detection module; interface four of INA193AIDBVT current management chip U2, the second end of resistor R21, and the second end of resistor R22 are respectively connected to the output end of the current detection module; interface five of INA193AIDBVT current management chip U2 is grounded through capacitor C11.

[0025] It should be further explained that the charging switch circuit includes: a resistor R31, a resistor R32, a resistor R33, a resistor R34, a photoelectric isolation module U3, a light emitting diode D11 and a transistor Q1;

[0026] The first input end of the photoelectric isolation module U3 is connected to the power supply through the resistor R31; the first output end of the photoelectric isolation module U3 and the first end of the resistor R34 are respectively connected to the power supply; the second output end of the photoelectric isolation module U3 is connected to the first end of the resistor R32, the second end of the resistor R32 and the second end of the resistor R33 are respectively connected to the base of the transistor Q1, the emitter of the transistor Q1 and the first end of the resistor R33 are respectively grounded, the second end of the resistor R34 is connected to the anode of the light-emitting diode D11, the cathode of the light-emitting diode D11 and the first end of the contactor coil J1 are respectively connected to the power supply; the second end of the contactor coil J1 is connected to the collector of the transistor Q1.

[0027] It should be further explained that the controller adopts STC15W4K32S4 single chip microcomputer, or adopts STC15F2K60S2 single chip microcomputer, or adopts ARM microprocessor. The charging monitoring terminal also includes: a memory, and the controller is communicatively connected with the memory.

[0028] It should be further explained that the smoke sensor adopts the MQ-2 smoke sensor; the flame sensor adopts the D-LE703 series flame sensor; the timing module adopts the DS1302 clock chip; and the wireless communication module adopts the SIM300C module.

[0029] It should be further explained that a card reader is also installed on each charging pile; the display touch screen is also used to display a QR code for starting charging.

[0030] It can be seen from the above technical solutions that the utility model has the following advantages:

[0031] The intelligent charging system for two-wheeled and three-wheeled electric vehicles provided by the utility model can obtain the current information, voltage information, electric energy information, smoke information, flame information and charging video information of the charging process in real time, so that the monitoring personnel and the charging personnel can timely understand the real-time charging situation, and can adjust the charging parameters based on the charging needs to ensure the smooth progress of the charging process and meet the charging requirements. When an abnormality occurs, an alarm prompt can be issued in time to ensure the safety of the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a schematic diagram of the intelligent charging system for two-wheeled and three-wheeled electric vehicles;

[0034] Figure 2 It is a schematic diagram of an embodiment of a smart charging system for two-wheeled and three-wheeled electric vehicles;

[0035] Figure 3 This is the circuit diagram of the electric energy detection module;

[0036] Figure 4 This is the circuit diagram of the voltage detection module;

[0037] Figure 5 This is the circuit diagram of the current detection module;

[0038] Figure 6 This is the charging switch circuit diagram. DETAILED DESCRIPTION

[0039] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0040] like Figures 1 to 6 As shown, the two-wheeled and three-wheeled electric vehicle intelligent charging system provided by the utility model includes: a host computer and multiple charging areas.

[0041] Each charging area is equipped with a wireless repeater, multiple charging piles, a camera, and a charging monitoring terminal. The wireless repeater serves to upload the operating status information and related information of the charging area to the host computer. The charging monitoring terminal can obtain the operating information of each charging pile in real time, and upload the operating information of each charging pile to the host computer through the wireless repeater. Optionally, the host computer can send the operating information of the charging pile to the corresponding user's mobile phone, so that the user can understand the current charging information.

[0042] In order to ensure the safety of the charging process and to promptly handle any abnormalities that occur during the charging process, in this embodiment, a smoke sensor and a flame sensor are provided on the top of each charging pile.

[0043] In this embodiment, the charging monitoring terminal includes: a controller, a display touch screen, a charging status detection module, a wireless communication module and a timing module; the input end of the charging pile is connected to the mains, and the output end of the charging pile is connected to the charging interface through a charging switch circuit; the controller obtains a charging start instruction through the display touch screen, and controls the on and off of charging by connecting to the charging switch circuit;

[0044] The controller is connected to the charging interface through the charging state detection module to obtain the current information, voltage information and electric energy information of the charging process, and obtains the charging time information through the timing module, and displays it on the display touch screen, and also sends the charging time information, the current information, voltage information and electric energy information of the charging process to the host computer through the wireless communication module and the wireless repeater;

[0045] The controller obtains the charging video information captured by the camera by communicating with the camera, and sends it to the host computer through the wireless communication module and the wireless repeater; the controller obtains the smoke information and flame information of the charging pile by communicating with the smoke sensor and the flame sensor respectively, and sends an alarm message to the host computer through the wireless communication module and the wireless repeater when the smoke information exceeds the threshold or the flame information is detected.

[0046] In this way, the two-wheeled and three-wheeled electric vehicle intelligent charging system involved in this embodiment can ensure that the charging process information is uploaded to the host computer in a timely manner, so that the monitoring personnel can learn the charging process information and handle it in time when an abnormality occurs.

[0047] Optionally, the controller of this embodiment can monitor the voltage, current, temperature and other key parameters of the two-wheeled and three-wheeled electric vehicle battery in real time; preferably, the charging status can be analyzed according to edge computing to optimize and adjust the charging parameters, thereby ensuring charging safety.

[0048] For ease of use, the preferred method of this embodiment can configure a card reader in the system, display a QR code module on the display touch screen, configure a charging APP applet, etc., so that users can interact with the charging monitoring terminal through the host computer and obtain charging information, such as the charging status, charging power, and charging time, so that users can intuitively understand the current status of the charging pile, improve charging efficiency, and reduce waiting time. Users can also choose charging gears, payment methods, etc., and query the usage and fault information of the charging pile at the same time, providing a convenient user experience. Users can also register and fill in their own electric vehicle brands; daily usage, such as daily mileage, charging frequency and other electric vehicle information to meet the charging requirements of two-wheeled and three-wheeled electric vehicles.

[0049] In this embodiment, in order to obtain the charging process information, the charging status detection module includes: a voltage detection module, a current detection module and an electric energy detection module; the controller obtains the voltage information of the charging process by connecting to the voltage detection module; the controller obtains the current information of the charging process by connecting to the current detection module; the controller obtains the electric energy information of the charging process by connecting to the electric energy detection module.

[0050] Specifically, the electric energy detection module includes: resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 and electric energy detection chip U1; interface four of the electric energy detection chip U1 is respectively connected to the second end of resistor R2 and the first end of capacitor C1; the first end of resistor R2 is connected to the second end of resistor R1; the first end of resistor R1 and the first end of resistor R3 are respectively connected to the first input end of the electric energy detection module; the second end of capacitor C1, the first end of capacitor C2, the second end of capacitor C5, the second end of capacitor C6, the second end of resistor R8, the second end of capacitor C3, the second end of resistor R9, the second end of capacitor C4 and the electric energy detection chip U 1 interface ten is respectively grounded; the second end of capacitor C2 and the second end of resistor R3 are respectively connected to interface five of electric energy detection chip U1; interface eight of electric energy detection chip U1 is respectively connected to the second end of resistor R7, the first end of resistor R8 and the first end of capacitor C3; the first end of resistor R7 is connected to the second input end of the electric energy detection module through resistor R6, resistor R5 and resistor R4; interface nine of electric energy detection chip U1 is respectively connected to the first end of resistor R9 and the first end of capacitor C4; interface twelve of electric energy detection chip U1 is connected to the power supply through resistor R10; interface twenty of electric energy detection chip U1 is respectively connected to the first end of crystal oscillator Y1 and the first end of capacitor C5; interface nineteen of electric energy detection chip U1 is respectively connected to the second end of crystal oscillator Y1 and the first end of capacitor C6; electric energy detection chip U1 adopts RN8209D chip.

[0051] The voltage detection module of this embodiment includes: resistor R11, resistor R12 and resistor R13; the first end and the sliding end of resistor R11 are grounded respectively; the second end of resistor R11 is connected to the first end of resistor R12 and the first end of resistor R13 respectively; the second end of resistor R12 is connected to the power supply; the second end of resistor R13 is connected to the detection end. The controller can learn the charging voltage through the output end of the voltage detection module. Resistor R11 is an adjustable resistor, and the voltage range is detected.

[0052] The current detection module of this embodiment includes: resistor R21, resistor R22, capacitor C11 and INA193AIDBVT current management chip U2; INA193AIDBVT current management chip U2 interface three, resistor R21 first end, resistor R22 first end are respectively connected to the current detection module input end; INA193AIDBVT current management chip U2 interface four, resistor R21 second end, resistor R22 second end are respectively connected to the current detection module output end; INA193AIDBVT current management chip U2 interface five is grounded through capacitor C11. The voltage value at both ends of resistor R21 can be detected, and the current information can be obtained in combination with the resistance value of resistor R21.

[0053] Optionally, the controller can obtain the battery's voltage, current, power and other parameters during the charging process, as well as the changing patterns of each parameter during the charging process, and identify key stages in the charging process, such as constant current charging, constant voltage charging and trickle charging, etc. The charging status is analyzed based on the monitored data and the charging process to ensure charging safety and charging efficiency for two-wheeled and three-wheeled electric vehicles.

[0054] In this embodiment, the control mode for charging on and off can be implemented based on the charging switch circuit. Optionally, the charging switch circuit includes: resistor R31, resistor R32, resistor R33, resistor R34, photoelectric isolation module U3, light emitting diode D11 and transistor Q1; the first input end of the photoelectric isolation module U3 is connected to the power supply through the resistor R31; the first output end of the photoelectric isolation module U3 and the first end of the resistor R34 are respectively connected to the power supply; the second output end of the photoelectric isolation module U3 is connected to the first end of the resistor R32, the second end of the resistor R32 and the second end of the resistor R33 are respectively connected to the base of the transistor Q1, the emitter of the transistor Q1 and the first end of the resistor R33 are respectively grounded, the second end of the resistor R34 is connected to the anode of the light emitting diode D11, the cathode of the light emitting diode D11 and the first end of the contactor coil J1 are respectively connected to the power supply; the second end of the contactor coil J1 is connected to the collector of the transistor Q1.

[0055] Based on the control of the contactor coil J1, the on-off control between the output end of the charging pile and the charging interface can be realized. When charging, the two-wheeled and three-wheeled electric vehicle can be plugged into the charging interface, and after issuing a start charging command, the controller controls the charging of the two-wheeled and three-wheeled electric vehicle through the charging switch circuit.

[0056] The technology described in the two-wheeled and three-wheeled electric vehicle intelligent charging system provided by the utility model can be implemented in hardware, software, firmware or any combination thereof. The various features described as modules, units or components can be implemented together in an integrated logic device or separately as discrete but interoperable logic devices or other hardware devices. In some cases, various features of the electronic circuit can be implemented as one or more integrated circuit devices, such as integrated circuit chips or chipsets.

[0057] If implemented in hardware, the present invention relates to a device, such as a processor or an integrated circuit device, such as an integrated circuit chip or chipset. Alternatively or additionally, if implemented in software or firmware, the technology may be implemented at least in part by a computer-readable data storage medium, including instructions that, when executed, cause a processor to perform one or more of the above methods. For example, a computer-readable data storage medium may store instructions such as those executed by a processor.

[0058] Of course, the controller, wireless repeater, camera, smoke sensor, flame sensor, timing module, wireless communication module, card reader and display touch screen involved in the present invention can adopt the circuit forms and common models commonly used in the field. The present invention does not limit the specific models. Based on the knowledge scope of technical personnel in this field, the corresponding circuit forms and specific models can be anticipated to realize the functions of the present invention.

[0059] Specifically, the controller may be software and / or firmware executed by a processing circuit that may include one or more processors, such as one or more digital signal processors (DSPs), general-purpose microprocessors, application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other integrated circuits, or discrete logic circuits. Therefore, the term "processor" as used herein may refer to any of the aforementioned structures or any other structure that is more suitable for implementing the technology described herein. Among them, the controller uses an STC15W4K32S4 single-chip microcomputer, or an STC15F2K60S2 single-chip microcomputer, or an ARM microprocessor. The smoke sensor uses an MQ-2 smoke sensor; the flame sensor uses a D-LE703 series flame sensor; the timing module uses a DS1302 clock chip; and the wireless communication module uses a SIM300C module.

[0060] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A two-wheeled and three-wheeled electric vehicle intelligent charging system, characterized in that: Includes: host computer and multiple charging areas; Each charging area is equipped with a wireless repeater, multiple charging piles, cameras, and a charging monitoring terminal; A smoke sensor and a flame sensor are installed on the top of each charging pile; The charging monitoring terminal includes: a controller, a display touch screen, a charging status detection module, a wireless communication module and a timing module; The input end of the charging pile is connected to the mains, and the output end of the charging pile is connected to the charging interface through a charging switch circuit; The controller obtains the charging start instruction through the display touch screen, and controls the charging on and off by connecting with the charging switch circuit; The controller is connected to the charging interface through the charging state detection module to obtain the current information, voltage information and electric energy information of the charging process, and obtains the charging time information through the timing module, and displays it on the display touch screen, and also sends the charging time information, the current information, voltage information and electric energy information of the charging process to the host computer through the wireless communication module and the wireless repeater; The controller obtains the charging video information captured by the camera through communication connection with the camera, and sends it to the host computer through the wireless communication module and the wireless repeater; The controller obtains the smoke information and flame information of the charging pile by communicating with the smoke sensor and the flame sensor respectively, and sends an alarm message to the host computer through the wireless communication module and the wireless repeater when the smoke information exceeds the threshold or the flame information is detected.

2. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 1 is characterized in that: The charging state detection module includes: a voltage detection module, a current detection module and an electric energy detection module; the controller obtains the voltage information of the charging process by connecting with the voltage detection module; The controller obtains the current information of the charging process by connecting with the current detection module; The controller obtains the power information of the charging process by connecting with the power detection module.

3. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 2 is characterized in that: The electric energy detection module includes: a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6 and an electric energy detection chip U1; The interface 4 of the power detection chip U1 is respectively connected to the second end of the resistor R2 and the first end of the capacitor C1; the first end of the resistor R2 is connected to the second end of the resistor R1; the first end of the resistor R1 and the first end of the resistor R3 are respectively connected to the first input end of the power detection module; The second end of capacitor C1, the first end of capacitor C2, the second end of capacitor C5, the second end of capacitor C6, the second end of resistor R8, the second end of capacitor C3, the second end of resistor R9, the second end of capacitor C4 and the interface of power detection chip U1 are grounded respectively; The second end of capacitor C2 and the second end of resistor R3 are respectively connected to interface 5 of electric energy detection chip U1; interface 8 of electric energy detection chip U1 is respectively connected to the second end of resistor R7, the first end of resistor R8 and the first end of capacitor C3; the first end of resistor R7 is connected to the second input end of electric energy detection module through resistor R6, resistor R5 and resistor R4; interface 9 of electric energy detection chip U1 is respectively connected to the first end of resistor R9 and the first end of capacitor C4; interface 12 of electric energy detection chip U1 is connected to power supply through resistor R10; interface 20 of electric energy detection chip U1 is respectively connected to the first end of crystal oscillator Y1 and the first end of capacitor C5; interface 19 of electric energy detection chip U1 is respectively connected to the second end of crystal oscillator Y1 and the first end of capacitor C6; The power detection chip U1 uses the RN8209D chip.

4. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 2 is characterized in that: The voltage detection module includes: resistor R11, resistor R12 and resistor R13; the first end and the sliding end of resistor R11 are grounded respectively; the second end of resistor R11 is connected to the first end of resistor R12 and the first end of resistor R13 respectively; the second end of resistor R12 is connected to the power supply; the second end of resistor R13 is connected to the detection end.

5. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 2 is characterized in that: The current detection module includes: resistor R21, resistor R22, capacitor C11 and INA193AIDBVT current management chip U2; interface three of INA193AIDBVT current management chip U2, the first end of resistor R21, and the first end of resistor R22 are respectively connected to the input end of the current detection module; interface four of INA193AIDBVT current management chip U2, the second end of resistor R21, and the second end of resistor R22 are respectively connected to the output end of the current detection module; interface five of INA193AIDBVT current management chip U2 is grounded through capacitor C11.

6. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 1 or 2, characterized in that: The charging switch circuit includes: a resistor R31, a resistor R32, a resistor R33, a resistor R34, a photoelectric isolation module U3, a light emitting diode D11 and a transistor Q1; The first input end of the photoelectric isolation module U3 is connected to the power supply through the resistor R31; the first output end of the photoelectric isolation module U3 and the first end of the resistor R34 are respectively connected to the power supply; the second output end of the photoelectric isolation module U3 is connected to the first end of the resistor R32, the second end of the resistor R32 and the second end of the resistor R33 are respectively connected to the base of the transistor Q1, the emitter of the transistor Q1 and the first end of the resistor R33 are respectively grounded, the second end of the resistor R34 is connected to the anode of the light-emitting diode D11, the cathode of the light-emitting diode D11 and the first end of the contactor coil J1 are respectively connected to the power supply; the second end of the contactor coil J1 is connected to the collector of the transistor Q1.

7. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 1 or 2, characterized in that: The controller adopts STC15W4K32S4 single-chip microcomputer, or STC15F2K60S2 single-chip microcomputer, or ARM microprocessor.

8. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 1 or 2, characterized in that: The charging monitoring terminal also includes: a memory, and the controller is communicatively connected with the memory.

9. The intelligent charging system for two-wheeled and three-wheeled electric vehicles according to claim 1 or 2, characterized in that the smoke The sensor uses MQ-2 smoke sensor; The flame sensor adopts D-LE703 series flame sensor; The timing module uses DS1302 clock chip; The wireless communication module uses the SIM300C module.

10. The two-wheeled and three-wheeled electric vehicle intelligent charging system according to claim 1 or 2, characterized in that: A card reader is also installed on each charging station; The display touch screen is also used to display a QR code for charging activation.

Images