Circuit and system for awakening and dormancy of direct-current pile vehicle machine

Abstract

The utility model provides a DC pile vehicle machine awakening sleep circuit, two ends of which are communicated with a vehicle machine control unit and a charging pile control unit, and the DC pile vehicle machine awakening sleep circuit is characterized in that an optical coupler comprises a first pin, a second pin and a third pin, the first pin is connected with the charging pile control unit, the second pin is connected with the vehicle machine control unit, and the third pin is grounded; wherein the first pin and the second pin are connected to form a first loop communicated with the vehicle machine control unit and the charging pile control unit, and when the charging pile control unit outputs high voltage, the optical coupler is communicated with the first loop so as to charge a vehicle; the second pin and the third pin are connected to form a second loop used for outputting low voltage at the charging pile control unit, and the optical coupler cuts off the first loop and enables the second loop to be connected. According to the charging circuit, the charging efficiency of the new energy electric vehicle is effectively improved, and a stable and reliable working environment is provided.

Description

Technical Field

[0001] The present application relates to the field of new energy electric vehicles, and in particular to a DC charging station vehicle machine awakening sleep circuit and system. Background Art

[0002] New energy electric vehicles refer to vehicles that use electric motors as a power source and use electricity to power the vehicle. With the increasing global attention to reducing greenhouse gas emissions, new energy electric vehicles have become an important direction for the development of the automotive industry. New energy electric vehicle charging piles are the core components of this infrastructure. Their function is to convert city electricity into direct current suitable for electric vehicles and provide energy supply for electric vehicles.

[0003] In the existing new energy electric vehicle charging system, the microcontroller unit (MCU) of the vehicle system is responsible for managing the communication and charging process between the vehicle and the charging pile. When the vehicle is connected to the charging pile, if no charging operation is performed within a certain period of time, such as when the user has made an appointment for charging at a low electricity price at night or while waiting in line, the vehicle system MCU may automatically enter a dormant state to save energy. In this case, the user usually needs to manually re-plug the charging gun or perform other physical operations to wake up the vehicle system MCU to start the charging process. This method that relies on user intervention is not only inconvenient, but may also cause wear and tear on the charging interface due to repeated operations.

[0004] Therefore, it is necessary to provide a circuit solution for a vehicle to go into sleep mode and automatically wake up from sleep mode. Utility Model Content

[0005] In view of this, it is necessary to provide a circuit for automatically waking up a vehicle from sleep mode to solve the above problems.

[0006] The embodiment of the present application provides a DC pile vehicle machine wake-up sleep circuit, including:

[0007] The optical coupler comprises a first pin, a second pin and a third pin, wherein the first pin is connected to the charging pile control unit, the second pin is connected to the vehicle control unit, and the third pin is grounded;

[0008] The first pin and the second pin are connected to form a first loop connecting the vehicle control unit and the charging pile control unit, so that when the charging pile control unit outputs a high voltage, the optical coupler connects the first loop to charge the vehicle;

[0009] The second pin is connected to the third pin to form a second loop, which is used to output a low voltage in the charging pile control unit. The optical coupler cuts off the first loop and connects the second loop.

[0010] In at least one embodiment of the present application, the sleep circuit also includes a power module and a fourth pin of the optocoupler, wherein the power module is connected to the first pin and communicated with the fourth pin to form a third loop for providing a stable operating voltage for the optocoupler.

[0011] In at least one embodiment of the present application, the optocoupler further includes: a light emitting diode and a photosensitive element; the positive terminal of the light emitting diode is the first pin, the negative terminal is the fourth pin, one end of the photosensitive element is the second pin, and the other end is the third pin.

[0012] In at least one embodiment of the present application, the threshold of the photosensitive element is lower than the threshold of the charging pile control unit, and the first circuit is turned on; the threshold of the photosensitive element is higher than the threshold of the charging pile control unit, and the second circuit is turned on.

[0013] In at least one embodiment of the present application, a diode is further included, the diode including a fifth pin and a sixth pin, the fifth pin is connected between the fourth pin and the charging pile control unit, and the sixth pin is connected between the first pin and the power module.

[0014] In at least one embodiment of the present application, the cathode of the diode is the sixth pin, and the anode of the diode is the fifth pin, which is used to prevent reverse voltage of the first loop.

[0015] In at least one embodiment of the present application, a resistor is further included; one end of the resistor is connected to the sixth pin, and the other end of the resistor is connected to the power module.

[0016] In at least one embodiment of the present application, the DC pile vehicle machine wake-up sleep circuit also includes a charging port, which is connected to the second pin; when the vehicle is charging, the voltage value of the charging port is 6V, and the voltage value under the first circuit is greater than the voltage value under the second circuit.

[0017] In at least one embodiment of the present application, the DC pile vehicle machine wake-up sleep circuit further includes an input port, and the input port is connected to the fifth pin.

[0018] In at least one embodiment of the present application, a DC pile truck machine wake-up and sleep-down system includes any of the DC pile truck machine wake-up and sleep-down circuits described above.

[0019] The above-mentioned DC pile vehicle machine wake-up and sleep circuit realizes the automatic wake-up function of new energy electric vehicles in sleep state by designing an optocoupler circuit. When the charging pile control unit outputs a high voltage, the optocoupler will connect the first circuit so that the vehicle can be charged, and when the charging pile control unit outputs a low voltage, the optocoupler will cut off the first circuit and connect the second circuit, thereby realizing the vehicle's sleep state. This new type of DC pile vehicle machine wake-up and sleep circuit can effectively improve the charging efficiency and safety of new energy electric vehicles, provide a stable and reliable working environment, and provide strong support for the development and promotion of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the first circuit in one embodiment of the present application.

[0021] Figure 2 Schematic diagram of the structure of the second circuit in one embodiment of the present application.

[0022] Figure 3 Schematic diagram of the structure of the third loop in one embodiment of the present application.

[0023] Figure 4 FIG. 4 is a flow chart of a charging circuit in an embodiment of the present application.

[0024] Main component symbols

[0025] 90. Optocoupler; D45. Light-emitting diode; D451. First pin; D452. Fourth pin; U42. Photosensitive element; U421. Second pin; U422. Third pin; D46. Diode; D461. Fifth pin; D462. Sixth pin; R. Resistor; 10. Charging port; 20. Vehicle control unit; 30. Power module; 40. Input port; 50. Charging pile control unit; 60. First circuit; 70. Second circuit; 80. Third circuit; 100. DC pile vehicle wake-up and sleep circuit. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0027] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0028] The embodiment of the present application provides a DC pile vehicle machine wake-up sleep circuit, including:

[0029] The optical coupler comprises a first pin, a second pin and a third pin, wherein the first pin is connected to the charging pile control unit, the second pin is connected to the vehicle control unit, and the third pin is grounded;

[0030] The first pin and the second pin are connected to form a first loop connecting the vehicle control unit and the charging pile control unit, so that when the charging pile control unit outputs a high voltage, the optical coupler connects the first loop to charge the vehicle;

[0031] The second pin is connected to the third pin to form a second loop, which is used to output a low voltage in the charging pile control unit, and the optical coupler cuts off the first loop and connects the second loop. The optical coupler also includes a fourth pin.

[0032] The above-mentioned DC pile vehicle machine wake-up and sleep circuit realizes the automatic wake-up function of new energy electric vehicles in sleep state by designing a combination circuit of an optocoupler and a diode. When the charging pile control unit outputs a high voltage, the optocoupler will connect the first circuit so that the vehicle can be charged, and when the charging pile control unit outputs a low voltage, the optocoupler will cut off the first circuit and connect the second circuit, thereby realizing the vehicle's sleep state. This new type of DC pile vehicle machine wake-up and sleep circuit can effectively improve the charging efficiency and safety of new energy electric vehicles, provide a stable and reliable working environment, and provide strong support for the development and promotion of new energy vehicles.

[0033] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1-Figure 4 The embodiment of the present application provides a DC pile vehicle machine wake-up sleep circuit 100, and the DC pile vehicle machine wake-up sleep circuit 100 includes an optical coupler 90. The optical coupler 90 includes a first pin D451, a second pin U421, and a third pin U422, wherein the first pin D451 is connected to the charging pile control unit 50, the second pin U421 is connected to the vehicle machine control unit 20, and the third pin U422 is grounded.

[0035] Among them, the first pin D451 and the second pin U421 are connected to form a first circuit 60 connecting the vehicle control unit 20 and the charging pile control unit 50, and when the charging pile control unit 50 outputs a high voltage, the optical coupler 90 connects the first circuit 60 for charging the vehicle; the second pin U421 and the third pin U422 are connected to form a second circuit 70, and when the charging pile control unit 50 outputs a low voltage, the optical coupler 90 cuts off the first circuit 60 and connects the second circuit 70.

[0036] Specifically, the optocoupler 90 is a photoelectric device used to provide isolation and signal transmission between different circuits, and the three pins here are used to connect different circuit units. The first pin D451 is connected to the charging pile control unit 50, so that the optocoupler 90 can receive signals from the charging pile control unit 50.

[0037] The second pin U421 is connected to the vehicle control unit 20, which enables the optocoupler 90 to send a signal to the vehicle control unit 20. The third pin U422 is grounded to provide a reference potential to ensure the safe and stable operation of the equipment. When the charging pile control unit 50 outputs a high voltage, the optocoupler 90 connects to the first circuit 60, allowing current to pass through, thereby charging the vehicle. This design provides an efficient charging mode when the vehicle needs to be charged. When the charging pile control unit 50 outputs a low voltage, the optocoupler 90 cuts off the first circuit 60 and connects the second circuit 70, which usually means that the vehicle enters a dormant state.

[0038] Furthermore, when the vehicle needs to be charged, the charging pile control unit 50 outputs a high voltage signal. After receiving the signal, the optical coupler 90 transmits the signal to the vehicle control unit 20 through the first circuit 60 to start the charging process. When the vehicle enters a dormant state, the charging pile control unit 50 outputs a low voltage signal, and the optical coupler 90 switches to the second circuit 70. After receiving the signal, the vehicle control unit 20 determines that the charging gun is disconnected, and the vehicle control unit 20 is awakened. The charging pile control unit 50 outputs a high voltage signal again and starts normal charging.

[0039] In a specific embodiment, the sleep circuit also includes a power module 30 and a fourth pin D452 of the optocoupler 90 , wherein the power module 30 is connected to the first pin D451 and is connected to the fourth pin D452 to form a third loop 80 for providing a stable operating voltage for the optocoupler 90 .

[0040] Specifically, the third circuit 80 is formed by the power module 30, the first pin D451 and the fourth pin D452. This circuit is specifically used to provide a stable working voltage for the optical coupler 90. The existence of the third circuit 80 enables the optical coupler 90 to work under an independent stable voltage source. When the system is started, the power module 30 starts to work, and provides a stable working voltage to the fourth pin D452 of the optical coupler 90 through the third circuit 80. After receiving the stable voltage from the power module 30, the optical coupler 90 communicates with the vehicle control unit 20 through the first circuit 60 or the second circuit 70 according to the signal of the charging pile control unit 50 to control the charging or dormant state of the vehicle. When the charging process starts, the charging pile control unit 50 outputs a high voltage signal, and the optical coupler 90 transmits the signal to the vehicle control unit 20 through the first circuit 60. If the charging pile control unit 50 outputs a low voltage signal, the optical coupler 90 cuts off the first circuit 60 and transmits the signal to the vehicle control unit 20 through the second circuit 70, so that the vehicle enters a dormant state.

[0041] Furthermore, the function of the power module 30 is to provide a stable power supply to ensure that the optical coupler 90 can operate at a constant voltage, thereby avoiding unstable performance or damage due to voltage fluctuations. The fourth pin D452 is usually used to receive a bias voltage, which is necessary for the light-emitting diode D45 of the optical coupler 90 to emit light normally and drive the photosensitive element U42. The introduction of the fourth pin D452 can ensure that the optical coupler 90 operates in the best working state and improve the accuracy and response speed of signal transmission.

[0042] In a specific embodiment, the optical coupler 90 also includes: a light emitting diode D45 and a photosensitive element U42; the positive terminal of the light emitting diode D45 is the first pin D451, and the negative terminal is the fourth pin D452; one end of the photosensitive element U42 is the second pin U421, and the other end is the third pin U422.

[0043] Specifically, the light-emitting diode D45 acts as a light source in the optocoupler 90, and emits light when current passes through it. The function of the photosensitive element U42 is to detect the light emitted by the light-emitting diode D45 and generate a corresponding electrical signal. The first pin D451 is connected to the charging pile control unit 50 for receiving an input signal. The fourth pin D452 is used to complete the circuit connection of the light-emitting diode D45, and is usually connected to the power module 30 to provide a bias voltage. The second pin U421 is connected to the vehicle control unit 20, and is used to transmit the electrical signal generated after the light signal received by the photosensitive element U42. The third pin U422 is grounded to provide a reference potential for the photosensitive element U42.

[0044] Furthermore, when the vehicle is charging normally, the charging pile control unit 50 sends a high voltage signal, and the current flows through the light-emitting diode D45, causing it to emit light. The emitted light is detected by the photosensitive element U42, and the photosensitive element U42 therefore generates an electrical signal and transmits it to the vehicle control unit 20 through the second pin U421. When the vehicle enters a dormant state, the charging pile control unit 50 sends a low voltage signal, the light-emitting diode D45 does not emit light or the light-emitting effect is weak, the photosensitive element U42 does not generate an electrical signal, and the vehicle control unit 20 recognizes the lack of a signal through the second pin U421. The vehicle side determines that the charging gun is disconnected, the vehicle control unit 20 is awakened, and the charging pile control unit 50 re-outputs a high voltage signal to start normal charging.

[0045] In a specific example, the threshold of the photosensitive element U42 is lower than the threshold of the charging pile control unit 50, and the first circuit 60 is turned on; the threshold of the photosensitive element U42 is higher than the threshold of the charging pile control unit 50, and the second circuit 70 is turned on.

[0046] Specifically, the threshold of the photosensitive element U42 refers to the minimum light intensity required for it to start conducting. When the threshold of the photosensitive element U42 is higher than the threshold of the charging pile control unit 50, it indicates that the light signal generated by the photosensitive element U42 is weak and not suitable for charging. At this time, the circuit will conduct the second loop 70. When the charging pile control unit 50 outputs a high level, the threshold of the photosensitive element U42 is set lower than the level output by the charging pile control unit 50, and the photosensitive element U42 is turned on, thereby allowing current to pass, opening the first loop 60, and starting to charge the vehicle.

[0047] Furthermore, when the vehicle starts to charge, the charging pile control unit 50 outputs a high level, the threshold of the photosensitive element U42 is lower than the threshold of the charging pile control unit 50, the first circuit 60 is turned on, and charging starts normally. When the vehicle enters a dormant state, the charging pile control unit 50 outputs a low level, the threshold of the photosensitive element U42 is higher than the threshold of the charging pile control unit 50, the second circuit 70 is turned on and the first circuit 60 is turned on and off, so that the circuit between the vehicle control unit 20 and the charging pile control unit 50 is disconnected, and the vehicle control unit 20 is awakened, and the charging pile control unit 50 outputs a high level again, and charging can be carried out normally.

[0048] In a specific embodiment, a diode D46 is further included, and the diode D46 includes a fifth pin D461 and a sixth pin D462, the fifth pin D461 is connected between the fourth pin D452 and the charging pile control unit 50, and the sixth pin D462 is connected between the first pin D451 and the power module 30.

[0049] Specifically, the fifth pin D461 is connected between the fourth pin D452 (the negative terminal of the optocoupler 90) and the charging pile control unit 50. Such a connection allows the current to flow from the charging pile control unit 50 to the fourth pin D452 of the optocoupler 90, but prevents the current from the fourth pin D452 to the charging pile control unit 50, thereby protecting the charging pile control unit 50. The sixth pin D462 is connected between the first pin D451 (the positive terminal of the optocoupler 90) and the power module 30. Such a connection allows the current to flow from the power module 30 to the first pin D451 of the optocoupler 90, but prevents the current from the first pin D451 to the power module 30, thereby protecting the power module 30.

[0050] Further, when the charging pile control unit 50 outputs a high voltage, the current flows into the diode D46 through the fifth pin D461. Due to the unidirectional conductivity of the diode D46, the current enters the optocoupler 90 through the first pin D451, and cannot flow back to the charging pile control unit 50. At the same time, the power module 30 provides a stable operating voltage for the optocoupler 90 through the third circuit 80, and the current passes through the sixth pin D462, and then supplies the optocoupler 90 through the first pin D451, so that it cannot flow back to the power module 30. When the charging pile control unit 50 outputs a low voltage, the optocoupler 90 cuts off the first circuit 60 and turns on the second circuit 70, and the vehicle enters a dormant state. At this time, the diode D46 still blocks any possible reverse current to protect the safety of the circuit. This DC pile vehicle wake-up dormancy circuit 100 is particularly suitable for use in the charging system of electric vehicles, in which the charging pile control unit 50 and the power module 30 need to be protected from the influence of current reversal.

[0051] In a specific example, the cathode of the diode D46 is the sixth pin D462 , and the anode of the diode D46 is the fifth pin D461 , which is used to prevent the reverse voltage of the first loop 60 .

[0052] Specifically, when the power module 30 provides the operating voltage to the optical coupler 90, the current enters the diode D46 from the power module 30 through the sixth pin D462. Due to the unidirectional conductivity of the diode D46, the current continues to flow to the first pin D451 and enters the optical coupler 90. If a reverse voltage appears in the first loop 60, the diode D46 prevents such voltage from flowing to the power module 30. Similarly, when the charging pile control unit 50 sends a signal to the optical coupler 90, the current enters the diode D46 through the fifth pin D461 and then flows to the optical coupler 90. If a reverse voltage appears in the third loop 80, the diode D46 prevents such voltage from flowing to the charging pile control unit 50.

[0053] In a specific embodiment, a resistor R is further included; one end of the resistor R is connected to the sixth pin D462 , and the other end of the resistor R is connected to the power module 30 .

[0054] Specifically, the introduction of the resistor R is to limit the flow of current in the third loop 80 and protect the circuit from the influence of excessive current. One end of the resistor R is connected to the sixth pin D462 of the diode D46, that is, the cathode of the diode D46, to avoid excessive current from the power module 30 to the first pin D451 of the optical coupler 90, thereby preventing damage to the optical coupler 90 or other components in the circuit. The other end of the resistor R is connected to the power module 30, so that the resistor R is located between the power module 30 and the optical coupler 90, thereby limiting the current.

[0055] Furthermore, when the power module 30 provides the operating voltage to the optical coupler 90, the current first passes through the resistor R. Due to the current limiting effect of the resistor R, the magnitude of the current is controlled within a safe range. Then the current enters the diode D46 through the sixth pin D462. Due to the unidirectional conductivity of the diode D46, the current continues to flow to the first pin D451 and enters the optical coupler 90. If a momentary high current or voltage spike occurs in the circuit, the resistor R will absorb this part of the extra electrical energy to protect the optical coupler 90 and the power module 30 from damage.

[0056] In a specific embodiment, the DC charging pile vehicle machine wake-up sleep circuit 100 also includes a charging port 10, which is connected to the second pin U421; when the vehicle is charging, the voltage value of the charging port 10 is 6V, and the voltage value under the first circuit 60 is greater than the voltage value under the second circuit 70.

[0057] Specifically, the introduction of the charging port 10 is to provide a physical connection point when the vehicle is charged, which is used to connect the external charger to the charging system of the vehicle. The charging port 10 is connected to the second pin U421 of the optocoupler 90, that is, one end of the photosensitive element U42, in order to transmit signals during the charging process. When the vehicle is charging, the voltage value of the charging port 10 is set to 6V, which is the voltage range required for the normal operation of the optocoupler 90. This setting ensures that the optocoupler 90 can accurately convert the signal when receiving the light signal, thereby controlling the charging or sleep state of the vehicle.

[0058] Furthermore, the voltage value under the first circuit 60 is greater than the voltage value under the second circuit 70, which makes the voltage value of the charging port 10 under the first circuit 60 (for charging control) of the optical coupler 90 set to be higher than the voltage value under the second circuit 70 (for sleep control). This ensures that the optical coupler 90 can accurately turn on or off the corresponding circuit in different states. When the vehicle needs to be charged, the charging pile control unit 50 will set the voltage value under the first circuit 60 to a high voltage value, and this high voltage value will cause the optical coupler 90 to turn on the first circuit 60, thereby allowing current to flow and start the charging process. When the vehicle enters the sleep state, the charging pile control unit 50 is set to a low voltage value, and this low voltage value will cause the optical coupler 90 to cut off the first circuit 60 and turn on the second circuit 70, so that the voltage of the charging port 10 is pulled down, and the vehicle control unit 20 determines that the charging circuit is disconnected, and the vehicle control unit 20 is awakened, and the charging pile control unit 50 outputs a high level again, so that the vehicle resumes charging.

[0059] In a specific embodiment, the DC charging pile vehicle machine wake-up sleep circuit 100 further includes an input port 40 , and the input port 40 is connected to the fifth pin D461 .

[0060] Specifically, the input port 40 is introduced to provide an interface for external signal or data input. The input port 40 is connected to the charging pile control unit 50 to transmit control instructions or other information from the charging pile control unit 50. When charging normally, the charging pile control unit 50 controls the input port 40 to be high level, and the optical coupler 90 will turn on the first circuit 60, allowing current to flow, thereby starting the charging process. When the vehicle enters a dormant state, the charging pile control unit 50 controls the input port 40 to be low level, and the optical coupler 90 will cut off the first circuit 60 and turn on the second circuit 70, so that the vehicle enters a dormant state, and the vehicle control unit 20 determines that the charging circuit is disconnected, and the vehicle control unit 20 is awakened. After awakening, the charging process is restarted, and charging can be performed normally.

[0061] In a specific example, a DC pile truck machine wake-up and sleep-down system includes any of the DC pile truck machine wake-up and sleep-down circuits 100 described above.

[0062] Specifically, when the vehicle is connected to the DC charging pile and starts charging, the charging pile control unit 50 sends a high voltage signal through the first circuit 60. The optical coupler 90 detects the high voltage signal, conducts through the first circuit 60, activates the vehicle control unit 20, and makes it ready to receive charging. When the vehicle enters a dormant state, the charging pile control unit 50 outputs a low voltage signal, the optical coupler 90 cuts off the first circuit 60, and conducts through the second circuit 70, so that the vehicle control unit 20 enters a dormant state. When the charging pile control unit 50 needs to reactivate the vehicle control unit 20, it can automatically wake up the vehicle from sleep by changing the output voltage.

[0063] Thus, by designing the optocoupler 90 circuit, the automatic wake-up function of the new energy electric vehicle in the dormant state is realized. When the charging pile control unit 50 outputs a high voltage, the optocoupler 90 will connect the first circuit 60 so that the vehicle can be charged, and when the charging pile control unit 50 outputs a low voltage, the optocoupler 90 will cut off the first circuit 60 and connect the second circuit 70, thereby realizing the dormant state of the vehicle. This new type of DC pile vehicle machine wake-up dormant circuit 100 can effectively improve the charging efficiency and safety of new energy electric vehicles, provide a stable and reliable working environment, and provide strong support for the development and promotion of new energy vehicles.

[0064] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A DC charging pile vehicle machine wake-up sleep circuit, the two ends of which are connected to the vehicle machine control unit and the charging pile control unit, characterized in that: include: The optical coupler comprises a first pin, a second pin and a third pin, wherein the first pin is connected to the charging pile control unit, the second pin is connected to the vehicle control unit, and the third pin is grounded; The first pin and the second pin are connected to form a first loop connecting the vehicle control unit and the charging pile control unit, so that when the charging pile control unit outputs a high voltage, the optical coupler connects the first loop to charge the vehicle; The second pin is connected to the third pin to form a second loop, which is used to output a low voltage in the charging pile control unit. The optical coupler cuts off the first loop and connects the second loop.

2. A DC pile truck machine wake-up sleep circuit according to claim 1, characterized in that: The sleep circuit also includes a power module and a fourth pin of the optical coupler. The power module is connected to the first pin and communicated with the fourth pin to form a third loop for providing a stable operating voltage for the optical coupler.

3. A DC pile truck machine wake-up sleep circuit according to claim 2, characterized in that: The optical coupler further includes: a light emitting diode and a photosensitive element; the positive terminal of the light emitting diode is the first pin, the negative terminal is the fourth pin, one end of the photosensitive element is the second pin, and the other end is the third pin.

4. A DC pile truck machine wake-up sleep circuit according to claim 3, characterized in that: The threshold of the photosensitive element is lower than the threshold of the charging pile control unit, and the first circuit is turned on; the threshold of the photosensitive element is higher than the threshold of the charging pile control unit, and the second circuit is turned on.

5. A DC pile truck machine wake-up sleep circuit according to claim 2, characterized in that: It also includes a diode, which includes a fifth pin and a sixth pin, the fifth pin is connected between the fourth pin and the charging pile control unit, and the sixth pin is connected between the first pin and the power module.

6. A DC pile truck machine wake-up sleep circuit according to claim 5, characterized in that: The cathode of the diode is the sixth pin, and the anode of the diode is the fifth pin, which are used to prevent the reverse voltage of the first loop.

7. A DC pile truck machine wake-up sleep circuit according to claim 5, characterized in that: It also includes resistors; One end of the resistor is connected to the sixth pin, and the other end is connected to the power module.

8. A DC pile truck machine wake-up sleep circuit according to claim 1, characterized in that: The DC charging pile vehicle machine awakening and dormant circuit also includes a charging port, and the charging port is connected to the second pin; When the vehicle is charging, the voltage value of the charging port is 6V, and the voltage value of the first circuit is greater than the voltage value of the second circuit.

9. A DC pile truck machine wake-up sleep circuit according to claim 5, characterized in that: The DC pile vehicle machine wake-up sleep circuit also includes an input port, and the input port is connected to the fifth pin.

10. A DC pile truck machine awakening dormancy system, characterized in that: It comprises the DC pile truck machine awakening sleep circuit as described in any one of claims 1-9.

Images