Electric vehicle charging system and electronic equipment

Abstract

The embodiment of the utility model discloses an electric vehicle charging system and electronic equipment, and the system comprises an input power supply conversion module which is connected with an electric vehicle charging power supply and is used for receiving an initial power supply input by the electric vehicle charging power supply and outputting current and voltage signals suitable for charging an electric vehicle battery; the output voltage control module is connected with the input power supply conversion module and is used for receiving the current and voltage signals and outputting target current and voltage signals with preset output power; the charging power supply output module is connected with the output voltage control module and is used for receiving the target current and voltage signals and outputting stable target current and voltage signals; and the electric vehicle battery module is connected with the charging power supply output module and is used for receiving the stable target current and voltage signals so as to charge the electric vehicle. An initial power supply input by an electric vehicle charging power supply is received, and stable current and voltage signals suitable for charging an electric vehicle battery are output, so that the charging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging system and electronic equipment. Background Art

[0002] With the improvement of environmental awareness and the transformation of energy structure, electric two-wheeled vehicles have gradually become an important tool for people's daily travel. However, the charging problem of electric two-wheeled vehicles has always been one of the key factors restricting its development. There are many types of charging piles on the market, which requires users to carry multiple chargers, increasing the burden of carrying. Secondly, the charging efficiency of charging piles is low, wasting a lot of time. Utility Model Content

[0003] Based on this, it is necessary to propose an electric vehicle charging system and electronic equipment to address the above problems, which can effectively realize electric vehicle charging by converting the initial power input of the electric vehicle charging power supply into current and voltage signals suitable for charging the electric vehicle battery.

[0004] In a first aspect, the utility model provides an electric vehicle charging system, the electric vehicle charging system comprising:

[0005] An input power conversion module is connected to the electric vehicle charging power supply, and is used to receive the initial power input by the electric vehicle charging power supply, and output current and voltage signals suitable for charging the electric vehicle battery;

[0006] An output voltage control module, connected to the input power conversion module, for receiving current and voltage signals suitable for charging the electric vehicle battery from the input power conversion module, and outputting target current and voltage signals of a preset output power;

[0007] A charging power output module is connected to the output voltage control module and the electric vehicle battery module. The charging power output module receives and outputs the target current and voltage signals to the electric vehicle battery module to provide electric energy for the electric vehicle.

[0008] Optionally, the output voltage control module includes a charging voltage / current adjustment module, which is respectively connected to the input power conversion module and the charging power output module. The charging voltage / current adjustment module is used to receive current and voltage signals suitable for charging the electric vehicle battery from the input power conversion module, and output target current and voltage signal signals to the charging power output module.

[0009] Optionally, the output voltage control module includes: a control chip connected to the input power conversion module; used to receive current and voltage signals suitable for charging the electric vehicle battery input from the input power conversion module;

[0010] A charging state detection module, connected to the control chip and the electric vehicle battery module respectively, for detecting the charging state of the electric vehicle and outputting a first signal representing the charging state to the control chip;

[0011] The charging voltage / current adjustment module is connected to the control chip and the charging power output module respectively, and the control chip is used to receive the first signal and output a second signal to the charging voltage / current adjustment module, wherein the second signal is a signal for controlling the charging voltage / current adjustment module to output a target current and voltage signal.

[0012] Optionally, the system further comprises:

[0013] A communication module, connected to the control chip, used for signal transmission between the input power conversion module and the output voltage control module;

[0014] The communication module is also used to connect to the user terminal, and the control chip is also used to upload the charging status of the electric vehicle to the user terminal through the communication module when the communication module is connected to the user terminal, so that the user can remotely query the battery information of the electric vehicle and remotely control the charging / stop charging of the electric vehicle.

[0015] Optionally, the charging voltage / current adjustment module includes a first transceiver, a first capacitor and a second capacitor;

[0016] The first transceiver is respectively connected to the control chip, the first end of the first capacitor, the first end of the second capacitor and the charging power output module; the second end of the first capacitor C1 and the second end of the second capacitor are both grounded.

[0017] Optionally, the charging voltage / current adjustment module further includes a first resistor, a second resistor, a third capacitor, a fourth capacitor and a fifth capacitor;

[0018] The first end of the first resistor is respectively connected to the first transceiver, the first end of the third capacitor and the charging power output module, and the second end of the first resistor is respectively connected to the first end of the fourth capacitor and the first end of the second resistor;

[0019] The first end of the second resistor is connected to the first end of the fourth capacitor, and the second end of the second resistor is respectively connected to the first transceiver, the first end of the fifth capacitor and the charging power output module;

[0020] The second end of the fourth capacitor is respectively connected to the second end of the third capacitor and the second end of the fifth capacitor, and the second end of the fourth capacitor is grounded;

[0021] The first end of the third capacitor is respectively connected to the first transceiver and the charging power output module, and the second end of the third capacitor is grounded;

[0022] A first end of the fifth capacitor is respectively connected to the first transceiver and the charging power output module, and a second end of the fifth capacitor C5 is grounded.

[0023] Optionally, the charging state detection module includes a second transceiver, a sixth capacitor and a seventh capacitor;

[0024] The second transceiver is respectively connected to the control chip, the first end of the sixth capacitor, the first end of the seventh capacitor and the electric vehicle battery module; the second end of the sixth capacitor and the second end of the seventh capacitor are both grounded.

[0025] Optionally, the charging state detection module further includes a third resistor, a fourth resistor, an eighth capacitor, a ninth capacitor and a tenth capacitor;

[0026] The first end of the third resistor is respectively connected to the second transceiver, the first end of the eighth capacitor and the electric vehicle battery module, and the second end of the third resistor is respectively connected to the first end of the ninth capacitor and the first end of the fourth resistor;

[0027] The first end of the fourth resistor is connected to the first end of the ninth capacitor, and the second end of the fourth resistor is respectively connected to the second transceiver, the first end of the tenth capacitor and the electric vehicle battery module;

[0028] The second end of the ninth capacitor is respectively connected to the second end of the eighth capacitor and the second end of the tenth capacitor, and the second end of the ninth capacitor is grounded;

[0029] A first end of the eighth capacitor is connected to the second transceiver and the electric vehicle battery module respectively, and a second end of the eighth capacitor is grounded;

[0030] The first end of the tenth capacitor is respectively connected to the second transceiver and the electric vehicle battery module, and the second end of the tenth capacitor is grounded.

[0031] Optionally, the output voltage control module includes

[0032] A heat dissipation module, used to dissipate the heat generated by the output voltage control module;

[0033] The heat dissipation module includes a fifth resistor, a sixth resistor, a transistor and a heat sink;

[0034] The first end of the fifth resistor is connected to the control chip, and the second end of the fifth resistor is respectively connected to the first end of the sixth resistor and the base of the transistor; the collector of the transistor is connected to the heat sink, the emitter of the transistor is connected to the second end of the sixth resistor, and the emitter E of the transistor is grounded;

[0035] A second end of the sixth resistor is grounded.

[0036] In a second aspect, the utility model provides an electronic device, which includes the electric vehicle charging system as described in the first aspect.

[0037] The embodiment of the utility model has the following beneficial effects: an electric vehicle charging system, the system includes an input power conversion module, an output voltage control module, a charging power output module and an electric vehicle battery module, the input power conversion module is connected to the electric vehicle charging power supply, used to receive the initial power input of the electric vehicle charging power supply, and output the current and voltage signal suitable for charging the electric vehicle battery, the output voltage control module is connected to the input power conversion module, used to receive the current and voltage signal suitable for charging the electric vehicle battery from the input power conversion module, and output the target current and voltage signal of the preset output power; the charging power output module is connected to the output voltage control module, used to receive the target current and voltage signal input from the output voltage control module, and output the stable target current and voltage signal; the electric vehicle battery module is connected to the charging power output module, and the electric vehicle battery module is used to receive the stable target current and voltage signal input by the charging power output module, so as to realize charging the electric vehicle. By receiving the initial power input of the electric vehicle charging power supply, the stable current and voltage signal suitable for charging the electric vehicle battery is output, so as to improve the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below 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.

[0039] in:

[0040] Figure 1 An electric vehicle charging system in an embodiment of the present application;

[0041] Figure 2 This is a circuit diagram of an output voltage control module according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The utility model provides an electric vehicle charging system, which can be built into an electric vehicle and is used to convert an external electric vehicle charging power source used to charge the electric vehicle, and convert it into a current and voltage signal suitable for charging the electric vehicle battery. The external electric vehicle charging power source can be obtained through an electric vehicle charging pile or a household charging socket.

[0044] Reference Figure 1 , Figure 1 The utility model provides an electric vehicle charging system, such as Figure 1 As shown, the system includes an input power conversion module 10 , an output voltage control module 20 and a charging power output module 30 , wherein the input power conversion module 10 is connected to the output voltage control module 20 , and the output voltage control module 20 is connected to the charging power output module 30 .

[0045] The input power conversion module 10 may include a variety of charging bases, such as a fast charging base (i.e., DC charging) and a slow charging base (i.e., AC charging). The charging base can be connected to an existing electric vehicle charging pile socket, such as a DC charging pile, an AC charging pile, and a household socket, etc. The input power conversion module 10 is used to receive the initial power input of the electric vehicle charging power supply, and output a current and voltage signal suitable for charging the electric vehicle battery to the output voltage control module 20. The input power conversion module 10 may also include a transformer and a filter, wherein the charging base is connected to the transformer, and the transformer is connected to the filter. The specific connection method can refer to the prior art. The transformer is used to receive the initial power input via the charging base, and convert the input high-voltage AC power into a low-voltage AC power suitable for the subsequent circuit operation. The filter is used to receive the low-voltage AC power input by the transformer, eliminate the noise in the low-voltage AC power, and provide pure DC power. In the charger, the filter can reduce the voltage instability caused by power grid fluctuations and ensure the stability during the charging process.

[0046] The output voltage control module 20 is used to receive the current and voltage signals suitable for charging the electric vehicle battery input from the input power conversion module 10 , and output the target current and voltage signals of the preset output power to the charging power output module 30 .

[0047] The charging power supply output module 30 is used to receive the target current and voltage signals input from the output voltage control module 20. The charging power supply output module 30 is connected to the electric vehicle battery module 40 to output stable target current and voltage signals to the electric vehicle battery module to realize charging of the electric vehicle. The electric vehicle battery module is used to provide electric energy for the electric vehicle. The charging power supply output module 30 can be a voltage stabilizer, and the function of the voltage stabilizer is to maintain the stability of the output voltage. In a possible implementation, the charging power supply output module 30 may include a voltage stabilizer and a protection circuit. In the charger, the voltage stabilizer usually adopts a linear voltage stabilizer or a switch voltage stabilizer to ensure that the output voltage remains constant even when the load changes. The protection circuit can be a circuit that can realize overcurrent protection, overvoltage protection, overtemperature protection and short circuit protection, etc., and can refer to the prior art. Among them, in a possible implementation, the voltage stabilizer is connected to the protection circuit, and its specific connection method can also refer to the prior art. These protection mechanisms can cut off the power supply in time under abnormal conditions to avoid damage to the equipment and ensure the safety of the user. The electric vehicle battery module 40 can be used to provide electric energy to the electric vehicle, such as an electric vehicle battery.

[0048] In one possible design, the output voltage control module includes a charging voltage / current adjustment module, which is respectively connected to the input power conversion module and the charging power output module. The charging voltage / current adjustment module is used to receive current and voltage signals suitable for charging the electric vehicle battery from the input power conversion module, and output target current and voltage signal signals to the charging power output module.

[0049] In a possible design, the output voltage control module 20 includes a control chip U3, which is connected to the input power conversion module 10. Specifically, the control chip U3 can be connected to the filter of the input power conversion module 10, and the control chip U3 is used to receive the current and voltage signals suitable for charging the electric vehicle battery input from the input power conversion module.

[0050] In a possible design, the system also includes a communication module 50, which is respectively connected to the input power conversion module 10 and the output voltage control module 20. Specifically, the communication module 50 is respectively connected to the control chip U3 and the filter of the input power conversion module 10.

[0051] The communication module 50 is used for signal transmission between the input power conversion module 10 and the output voltage control module 20. For example, the input power conversion module 10 outputs current and voltage signals suitable for charging the battery of the electric vehicle to the communication module 50. The communication module 50 is used to receive the current and voltage signals suitable for charging the battery of the electric vehicle output by the input power conversion module 10, and output the current and voltage signals suitable for charging the battery of the electric vehicle to the output voltage control module 20. The communication module 50 may be a CAN communication interface.

[0052] In one possible design, the output voltage control module 20 includes a charging status detection module 201 and a charging voltage / current adjustment module 202. The charging status detection module 201 is connected to the control chip U3 and the electric vehicle battery module 40 respectively. The charging status detection module 201 is used to detect the charging status of the electric vehicle and output a first signal representing the charging status to the control chip U3, wherein the charging status may include the battery level of the electric vehicle battery, the electric vehicle battery temperature, the electric vehicle battery voltage, the electric vehicle battery current, etc.

[0053] The charging voltage / current adjustment module 202 is connected to the control chip U3 and the charging power output module 30 respectively. The control chip U3 is used to receive the first signal and output the second signal to the charging voltage / current adjustment module 202, wherein the second signal is a signal for controlling the charging voltage / current adjustment module to output the target current and voltage signal. The charging voltage / current adjustment module 202 is used to receive the second signal and output the target current and voltage signal to the charging power output module 30. Specifically, the charging voltage / current adjustment module 202 receives the second signal and receives the current and voltage signal suitable for charging the battery of the electric vehicle output from the control chip U3, and outputs the received current and voltage signal suitable for charging the battery of the electric vehicle as the target current and voltage signal to the charging power output module 30. The control chip U3 has the ability to dynamically adjust the output power and automatically optimize the charging current and voltage to achieve a fast and safe charging process.

[0054] In a possible design, the communication module 50 has both built-in Wi-Fi and Bluetooth communication modules. The communication module 50 can also be connected to a user terminal, which can be a user app, a smart phone or other electronic device. The output voltage control module 20 is also used to upload the charging status of the electric vehicle to the user terminal when the communication module 50 is connected to the user terminal, so that the user can remotely query the battery information of the electric vehicle and remotely control the charging / stop charging of the electric vehicle. Specifically, the control chip U3 is connected to the communication module 50, and the control chip U3 outputs the first signal to the communication module 50. The communication module 50 is used to receive the first signal and output it to the user terminal. The user terminal is used to display the charging status, so that the user can remotely query the battery information of the electric vehicle and remotely control the charging / stop charging of the electric vehicle.

[0055] Reference Figure 2 , Figure 2 A circuit diagram of an output voltage control module provided by the utility model, such as Figure 2 As shown, the control chip U3 is respectively connected to the charging state detection module 201 and the charging voltage / current adjustment module 202. The charging voltage / current adjustment module 202 includes a first transceiver U1, a first capacitor C1 and a second capacitor C2. The model of the control chip U3 can be APM32F103CBT6. The first transceiver U1 is respectively connected to the control chip U3, the first end of the first capacitor C1, the first end of the second capacitor C2 and the charging power output module 30; the second end of the first capacitor C1 and the second end of the second capacitor C2 are both grounded. The first transceiver U1 includes a TXD pin, a RXD pin, a STB pin, a VIO pin, a VCC pin, a GND pin, a CANH pin and a CANL pin, wherein RXD and TXD are two terms commonly used in data communication, RXD represents receiving data, and TXD represents sending data, VCC is a power supply pin, GND is a ground pin, STB represents a switch pin in the circuit, that is, a control pin, when STB is a high level, the switch power supply starts working, and when STB is a low level, the switch power supply stops working, VIO is the power input pin when the I / O port is used as a digital pin, CANH and CANL are bus signals, specifically, the TXD pin and RXD pin of the first transceiver U1 are connected to the control pins respectively. The control chip U3, the STB pin of the first transceiver U1 is respectively connected to the second end of the second capacitor C2 and the GND pin of the first transceiver U1, the GND pin of the first transceiver U1 is connected to the second end of the second capacitor C2, the GND pin of the first transceiver U1 is grounded, the VIO pin of the first transceiver U1 is respectively connected to the first power supply V1 and the first end of the second capacitor C2, the first end of the second capacitor C2 is connected to the first power supply V1, wherein the first power supply V1 can be +3V3E, the VCC pin of the first transceiver U1 is respectively connected to the second power supply V2 and the first end of the first capacitor C1, the first end of the first capacitor C1 is connected to the second power supply V2, and the CANH pin and CANL pin of the first transceiver U1 are connected to the charging power output module 30.

[0056] In a possible design, the charging voltage / current adjustment module 202 further includes a first resistor R1, a second resistor R2, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5, wherein a first end of the first resistor R1 is respectively connected to the first transceiver U1, a first end of the third capacitor C3 and the charging power output module 30, and a second end of the first resistor R1 is respectively connected to a first end of the fourth capacitor C4 and a first end of the second resistor R2; a first end of the second resistor R2 is connected to a first end of the fourth capacitor C4, and a second end of the second resistor R2 is respectively connected to the first transceiver U1, a first end of the fifth capacitor C5 and the charging power output module 30; a second end of the fourth capacitor C4 is respectively connected to a second end of the third capacitor C3 and a second end of the fifth capacitor C5, and a second end of the fourth capacitor C4 is grounded; a first end of the third capacitor C3 is respectively connected to the first transceiver U1 and the charging power output module 30, and a second end of the third capacitor C3 is grounded; a first end of the fifth capacitor C5 is respectively connected to the first transceiver U1 and the charging power output module 30, and a second end of the fifth capacitor C5 is grounded. Specifically, the CANH pin of the first transceiver U1 is respectively connected to the first end of the first resistor R1, the first end of the third capacitor C3 and the charging power output module 30, the second end of the second resistor R2 is connected to the CANL pin of the first transceiver U1, and the first end of the fifth capacitor C5 is connected to the CANL pin of the first transceiver U1.

[0057] The charging voltage / current adjustment module may be connected to the voltage stabilizer of the charging power output module 30 , and the specific connection method may refer to the prior art.

[0058] In a possible design, the charging status detection module 201 includes a second transceiver U2, a sixth capacitor C6 and a seventh capacitor C7, and the second transceiver U2 is respectively connected to the control chip U3, the first end of the sixth capacitor C6, the first end of the seventh capacitor C7 and the electric vehicle battery module; the second end of the sixth capacitor C6 and the second end of the seventh capacitor C7 are both grounded. The second transceiver U2 includes a TXD pin, a RXD pin, a STB pin, a VIO pin, a VCC pin, a GND pin, a CANH pin and a CANL pin. Specifically, the TXD pin and the RXD pin of the second transceiver U2 are respectively connected to the control chip U3, the STB pin of the second transceiver U2 is respectively connected to the second end of the seventh capacitor C7 and the GND pin of the second transceiver U2, the GND pin of the second transceiver U2 is connected to the second end of the seventh capacitor C7, the GND pin of the second transceiver U2 is grounded, the VIO pin of the second transceiver U2 is respectively connected to the third power supply V3 and the first end of the seventh capacitor C7, the first end of the seventh capacitor C7 is connected to the third power supply V3, wherein the third power supply V3 can be +3V3E, the VCC pin of the second transceiver U2 is respectively connected to the fourth power supply V4 and the first end of the sixth capacitor C6, the first end of the sixth capacitor C6 is connected to the fourth power supply V4, and the CANH pin and the CANL pin of the second transceiver U2 are connected to the electric vehicle battery module.

[0059] In a possible design, the charging state detection module 201 also includes a third resistor R3, a fourth resistor R4, an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10; the first end of the third resistor R3 is respectively connected to the second transceiver U2, the first end of the eighth capacitor C8 and the electric vehicle battery module, and the second end of the third resistor R3 is respectively connected to the first end of the ninth capacitor C9 and the first end of the fourth resistor R4; the first end of the fourth resistor R4 is connected to the first end of the ninth capacitor C9, and the second end of the fourth resistor R4 is respectively connected to the second transceiver U2, the first end of the tenth capacitor C10 and the electric vehicle battery module; the second end of the ninth capacitor C9 is respectively connected to the second end of the eighth capacitor C8 and the second end of the tenth capacitor C10, and the second end of the ninth capacitor C9 is grounded; the first end of the eighth capacitor C8 is respectively connected to the second transceiver U2 and the electric vehicle battery module, and the second end of the eighth capacitor C8 is grounded; the first end of the tenth capacitor C10 is respectively connected to the second transceiver U2 and the electric vehicle battery module, and the second end of the tenth capacitor C10 is grounded.

[0060] Specifically, the CANH pin of the second transceiver U2 is respectively connected to the first end of the third resistor R3, the first end of the eighth capacitor C8 and the input power conversion module 10, the second end of the fourth resistor R4 is connected to the CANL pin of the second transceiver U2, and the first end of the tenth capacitor C10 is connected to the CANL pin of the second transceiver U2.

[0061] In a possible design, the output voltage control module 20 includes a heat dissipation module 203 for dissipating the heat generated by the output voltage control module, and the heat dissipation module 203 includes a fifth resistor R5, a sixth resistor R6, a transistor Q1, and a heat sink FAN_CTRL. The first end of the fifth resistor R5 is connected to the control chip U3, and the second end of the fifth resistor R5 is respectively connected to the first end of the sixth resistor R6 and the base B of the transistor Q1; the collector C of the transistor Q1 is connected to the heat sink, the emitter E of the transistor Q1 is connected to the second end of the sixth resistor R6, and the emitter E of the transistor Q1 is grounded; the second end of the sixth resistor R6 is grounded.

[0062] In one possible design, the output voltage control module 20 also includes a control chip power module 204, which is used to provide power to the control chip, wherein the control chip power module 204 includes an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13 and a fourteenth capacitor C14. The first end of the eleventh capacitor C11 is respectively connected to the control chip U3, the first end of the twelfth capacitor C12, the first end of the thirteenth capacitor C13, the first end of the fourteenth capacitor C14 and the fifth power supply V5, the first end of the twelfth capacitor C12 is respectively connected to the control chip U3, the first end of the thirteenth capacitor C13, the first end of the fourteenth capacitor C14 and the fifth power supply V5, the first end of the thirteenth capacitor C13 is respectively connected to the control chip U3, the first end of the fourteenth capacitor C14 and the fifth power supply V5, the first end of the fourteenth capacitor C14 is respectively connected to the control chip and the fifth power supply V5, the second end of the eleventh capacitor C11 is respectively connected to the control chip, the second end of the twelfth capacitor C12, the second end of the thirteenth capacitor C13 and the second end of the fourteenth capacitor C14, the second end of the twelfth capacitor C12 is respectively connected to the control chip U3, the second end of the thirteenth capacitor C13 and the second end of the fourteenth capacitor C14, the second end of the thirteenth capacitor C13 is respectively connected to the control chip U3 and the second end of the fourteenth capacitor C14, and the second end of the fourteenth capacitor C14 is connected to the control chip U3. A second end of the eleventh capacitor C11 , a second end of the twelfth capacitor C12 , a second end of the thirteenth capacitor C13 , and a second end of the fourteenth capacitor C14 are all grounded.

[0063] In a possible design, the output voltage control module 20 also includes a fifteenth capacitor C15, a sixteenth capacitor C16 and a crystal oscillator Y1, wherein the first end of the fifteenth capacitor C15 is connected to the control chip U3 and the first end of the crystal oscillator Y1, wherein the first end of the fifteenth capacitor C15 can be connected to the OSC_IN pin of the control chip U3, the OSC_IN pin is used to receive the clock signal input of the external crystal oscillator, the second end of the fifteenth capacitor C15 is connected to the first end of the sixteenth capacitor C16, the second end of the sixteenth capacitor C16 is respectively connected to the second end of the crystal oscillator Y1 and the control chip U3, wherein the second end of the sixteenth capacitor C16 can be connected to the OSC_OUT pin of the crystal oscillator Y1, the OSC_OUT pin is used to output the clock signal after amplification and shaping by the crystal oscillator Y1. The third end and the fourth end of the crystal oscillator Y1 are both grounded, and the second end of the fifteenth capacitor C15 and the first end of the sixteenth capacitor are both grounded. The model of the crystal oscillator Y1 can be FA-20H.

[0064] In a possible design, the output voltage control module 20 further includes a seventh resistor R7, a first end of the seventh resistor R7 is connected to the BOOT0 pin of the control chip U3, and a second end of the seventh resistor R7 is grounded.

[0065] In one possible design, the output voltage control module 20 also includes a light-emitting diode D1 and an eighth resistor R8, the cathode of the light-emitting diode D1 is connected to the control chip U3, the anode of the light-emitting diode D1 is connected to the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is connected to the sixth power supply.

[0066] In a possible design, the output voltage control module 20 also includes a charging indication module 205, and the charging indication module 205 is used to indicate the charging state. The charging indication module 205 also includes a ninth resistor R9, a tenth resistor R10, a first indicator light RED, and a second indicator light GRN, wherein the first end of the ninth resistor R9 is connected to the control chip U3, the second end of the ninth resistor R9 is connected to the first indicator light RED, the first end of the tenth resistor R10 is connected to the control chip U3, and the second end of the tenth resistor R10 is connected to the second indicator light GRN, wherein the first indicator light RED and the second indicator light GRN are indicators of different colors, and the first indicator light RED and the second indicator light GRN can be used to indicate different charging states, such as the first indicator light RED is a red indicator light, and the second indicator light is a green indicator light, the first indicator light RED is used to indicate that the battery of the electric vehicle is fully charged, and the second indicator light is used to indicate that the battery of the electric vehicle is not fully charged. An intuitive LED indicator light can be provided to display the charging state and charging progress.

[0067] The system further comprises a housing module 60, which can be an external protective shell of each module, used to protect internal circuits and components, while being convenient for users to carry and use.

[0068] The above system, because the input power conversion module has a variety of bases, can be connected to the sockets of various existing charging piles, and will receive the initial power input of the electric vehicle charging power supply, and output the current and voltage signals suitable for charging the electric vehicle battery, which can avoid the need to carry multiple chargers. In addition, the system uses a control chip to achieve fast charging and efficient energy utilization. The system supports mobile phone APP remote control and charging status query functions, which improves user convenience. Finally, the system has multiple protection functions such as overcurrent, overvoltage, and overtemperature, which can ensure the safety of users and equipment.

[0069] In an embodiment of the present invention, an electronic device is also provided. The electronic device comprises: Figure 1 or Figure 2 The electric vehicle charging system in the illustrated embodiment. The electronic device may be a charger that can be built into an electric vehicle.

[0070] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An electric vehicle charging system, characterized in that: The system comprises: An input power conversion module is connected to the electric vehicle charging power supply, and is used to receive the initial power input by the electric vehicle charging power supply, and output current and voltage signals suitable for charging the electric vehicle battery; An output voltage control module, connected to the input power conversion module, for receiving current and voltage signals suitable for charging the electric vehicle battery from the input power conversion module, and outputting target current and voltage signals of a preset output power; A charging power output module is connected to the output voltage control module and the electric vehicle battery module. The charging power output module receives and outputs the target current and voltage signals to the electric vehicle battery module to provide electric energy for the electric vehicle.

2. The system according to claim 1, characterized in that The output voltage control module includes a charging voltage / current adjustment module, which is respectively connected to the input power conversion module and the charging power output module. The charging voltage / current adjustment module is used to receive current and voltage signals suitable for charging the electric vehicle battery from the input power conversion module, and output target current and voltage signal signals to the charging power output module.

3. The system according to claim 2, characterized in that The output voltage control module comprises: A control chip connected to the input power conversion module; used to receive current and voltage signals suitable for charging the electric vehicle battery input from the input power conversion module; A charging state detection module, connected to the control chip and the electric vehicle battery module respectively, for detecting the charging state of the electric vehicle and outputting a first signal representing the charging state to the control chip; The charging voltage / current adjustment module is connected to the control chip and the charging power output module respectively, and the control chip is used to receive the first signal and output a second signal to the charging voltage / current adjustment module, wherein the second signal is a signal for controlling the charging voltage / current adjustment module to output a target current and voltage signal.

4. The system according to claim 3, characterized in that The system further comprises: A communication module, connected to the control chip, used for signal transmission between the input power conversion module and the output voltage control module; The communication module is also used to connect to the user terminal, and the control chip is also used to upload the charging status of the electric vehicle to the user terminal through the communication module when the communication module is connected to the user terminal, so that the user can remotely query the battery information of the electric vehicle and remotely control the charging / stop charging of the electric vehicle.

5. The system according to claim 4, characterized in that The charging voltage / current adjustment module includes a first transceiver, a first capacitor and a second capacitor; The first transceiver is respectively connected to the control chip, the first end of the first capacitor, the first end of the second capacitor and the charging power output module; the second end of the first capacitor C1 and the second end of the second capacitor are both grounded.

6. The system according to claim 5, characterized in that The charging voltage / current adjustment module also includes a first resistor, a second resistor, a third capacitor, a fourth capacitor and a fifth capacitor; The first end of the first resistor is respectively connected to the first transceiver, the first end of the third capacitor and the charging power output module, and the second end of the first resistor is respectively connected to the first end of the fourth capacitor and the first end of the second resistor; The first end of the second resistor is connected to the first end of the fourth capacitor, and the second end of the second resistor is respectively connected to the first transceiver, the first end of the fifth capacitor and the charging power output module; The second end of the fourth capacitor is respectively connected to the second end of the third capacitor and the second end of the fifth capacitor, and the second end of the fourth capacitor is grounded; The first end of the third capacitor is respectively connected to the first transceiver and the charging power output module, and the second end of the third capacitor is grounded; The first end of the fifth capacitor is respectively connected to the first transceiver and the charging power output module, and the second end of the fifth capacitor C5 is grounded.

7. The system according to claim 5, characterized in that The charging state detection module includes a second transceiver, a sixth capacitor and a seventh capacitor; The second transceiver is respectively connected to the control chip, the first end of the sixth capacitor, the first end of the seventh capacitor and the electric vehicle battery module; the second end of the sixth capacitor and the second end of the seventh capacitor are both grounded.

8. The system according to claim 7, characterized in that The charging state detection module also includes a third resistor, a fourth resistor, an eighth capacitor, a ninth capacitor and a tenth capacitor; The first end of the third resistor is respectively connected to the second transceiver, the first end of the eighth capacitor and the electric vehicle battery module, and the second end of the third resistor is respectively connected to the first end of the ninth capacitor and the first end of the fourth resistor; The first end of the fourth resistor is connected to the first end of the ninth capacitor, and the second end of the fourth resistor is respectively connected to the second transceiver, the first end of the tenth capacitor and the electric vehicle battery module; The second end of the ninth capacitor is respectively connected to the second end of the eighth capacitor and the second end of the tenth capacitor, and the second end of the ninth capacitor is grounded; A first end of the eighth capacitor is connected to the second transceiver and the electric vehicle battery module respectively, and a second end of the eighth capacitor is grounded; The first end of the tenth capacitor is respectively connected to the second transceiver and the electric vehicle battery module, and the second end of the tenth capacitor is grounded.

9. The system according to claim 5, characterized in that The output voltage control module comprises: A heat dissipation module, used to dissipate heat generated by the output voltage control module; The heat dissipation module includes a fifth resistor, a sixth resistor, a transistor and a heat sink; The first end of the fifth resistor is connected to the control chip, and the second end of the fifth resistor is respectively connected to the first end of the sixth resistor and the base of the transistor; the collector of the transistor is connected to the heat sink, the emitter of the transistor is connected to the second end of the sixth resistor, and the emitter E of the transistor is grounded; A second end of the sixth resistor is grounded.

10. An electronic device, characterized in that: The electronic device comprises the electric vehicle charging system according to any one of claims 1 to 9.

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