Multifunctional charging pile indicating lamp strip circuit

Abstract

A multifunctional charging pile indicating lamp band circuit is characterized in that the multifunctional charging pile indicating lamp band circuit is provided with an MCU controller, the MCU controller is connected with a vehicle-mounted bus of a charging vehicle through an RS485 bus circuit, the MCU controller is connected with an indicating lamp band through a PWM drive circuit, and an enabling circuit is further arranged between the MCU controller and the indicating lamp band; the MCU controller is provided with four PWM driving ends, and the four PWM driving ends are respectively an RPWM driving end, a GPWM driving end, a BPWM driving end and a WPWM driving end; the indicating lamp band is provided with a red indicating lamp band, a green indicating lamp band, a blue indicating lamp band and a white indicating lamp band. The beneficial effects are that the charging state of the vehicle and the electric quantity condition of the battery can be displayed comprehensively, the state of the vehicle without a charging indicating lamp and the condition of the battery can be known conveniently, and the safety of the vehicle in the charging process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging pile indicating lamp strip technical field, in particular to a kind of multifunctional charging pile indicating lamp strip circuit. BACKGROUND

[0002] The main role of charging pile indicating lamp strip is to provide the working state information of charging pile to user, help user understand the working condition of charging pile, so as to carry out corresponding operation.

[0003] At present, all new energy vehicles must use charging pile to charge, when charging, sometimes need to know the present power consumption state, unit price, while more intuitive from surface to know the charging capacity and battery state.

[0004] The prior art has the problem that the charging state and battery capacity during charging are not fully displayed. UTILITY MODEL CONTENT

[0005] The multifunctional charging pile indicating lamp strip circuit can intuitively understand the charging state of vehicle and battery condition.

[0006] To achieve the above purpose, the multifunctional charging pile indicating lamp strip circuit provided by the utility model has the key points that the MCU controller is arranged, the MCU controller is connected with the vehicle-mounted bus of charging vehicle through the RS485 bus circuit, the MCU controller is connected with the indicating lamp strip through the PWM driving circuit, and the enabling circuit is further arranged between the MCU controller and the indicating lamp strip.

[0007] The MCU controller is provided with four PWM driving ends, and the four PWM driving ends are respectively RPWM driving end, GPWM driving end, BPWM driving end and WPWM driving end.

[0008] The RPWM driving end is connected with the red indicating lamp strip through the RPWM driving circuit, the GPWM driving end is connected with the green indicating lamp strip through the GPWM driving circuit, the BPWM driving end is connected with the blue indicating lamp strip through the BPWM driving circuit, and the WPWM driving end is connected with the white indicating lamp strip through the WPWM driving circuit.

[0009] The four PWM driving ends are respectively used for driving four different color indicating lamp strips to display.

[0010] Through the above design, the MCU controller obtains the charging information of the charging vehicle through the 485 transceiver, and then controls the driving of the charging pile indicator light strip according to the charging information to perform corresponding charging state effect display, so that the charging state of the vehicle and the battery capacity are fully displayed, which facilitates the understanding of the state of the vehicle without charging indicator light strip and the grasping of the battery condition, and increases the safety during the vehicle charging process.

[0011] As preferred: the RS485 bus circuit is provided with a 485 transceiver IC4, the positive end A and the negative end B of the 485 transceiver IC4 obtain vehicle charging information through the vehicle-mounted bus, the positive end A of the 485 transceiver IC4 is connected to ground through a series connection of a bidirectional voltage stabilizing diode D6, the negative end B of the 485 transceiver IC4 is connected to ground through a series connection of a bidirectional voltage stabilizing diode D5, the positive end A and the negative end B of the 485 transceiver IC4 are further connected in series with a resistor R13, the positive end A of the 485 transceiver IC4 is further connected in series with a resistor R12 and connected to a 5V power supply, and the negative end B of the 485 transceiver IC4 is further connected in series with a resistor R16 and connected to ground.

[0012] The output end RO of the 485 transceiver IC4 is connected to the receiving end PA10 of the MCU controller, the input end DI of the 485 transceiver IC4 is connected to the transmitting end PA9 of the MCU controller, the receiver enable end RE and the driver enable end DE of the 485 transceiver IC4 are connected to the enable driving end PA11 of the MCU controller, and the receiver enable end RE and the driver enable end DE of the 485 transceiver IC4 are further connected in series with a resistor R40 and connected to ground.

[0013] The bidirectional voltage stabilizing diodes D5 and D6 are used for preventing ±15KV electrostatic discharge (ESD) impact protection, and protecting the safety and reliability of the 485 transceiver.

[0014] As preferred: the GPWM driving circuit is provided with a MOS tube Q3 and a MOS tube Q4, the gate of the MOS tube Q3 is connected in series with a resistor R17 and connected to the GPWM driving end, the gate of the MOS tube Q3 is further connected in series with a resistor R32 and connected to ground, the source of the MOS tube Q3 is connected to ground, the drain of the MOS tube Q3 and the drain of the MOS tube Q4 are connected together and connected to a driving power supply V+ through the green indicator light strip, the gate of the MOS tube Q4 is connected in series with a resistor R18 and connected to the GPWM driving end, the gate of the MOS tube Q4 is further connected in series with a resistor R33 and connected to ground, and the source of the MOS tube Q4 is connected to ground.

[0015] The RPWM drive circuit is provided with MOS tube Q5 and MOS tube Q6, the gate of the MOS tube Q5 is connected with the RPWM drive end through a resistor R20, the gate of the MOS tube Q5 is also connected with the ground through a resistor R34, the source of the MOS tube Q5 is connected with the ground, the drain of the MOS tube Q5 and the MOS tube Q6 are connected together and connected with the driving power V+ through the red indicator light band, the gate of the MOS tube Q6 is connected with the RPWM drive end through a resistor R26, the gate of the MOS tube Q6 is also connected with the ground through a resistor R34, the source of the MOS tube Q6 is connected with the ground;

[0016] The BPWM drive circuit is provided with MOS tube Q7 and MOS tube Q8, the gate of the MOS tube Q7 is connected with the BPWM drive end through a resistor R27, the gate of the MOS tube Q7 is also connected with the ground through a resistor R36, the source of the MOS tube Q7 is connected with the ground, the drain of the MOS tube Q7 and the MOS tube Q8 are connected together and connected with the driving power V+ through the blue indicator light band, the gate of the MOS tube Q8 is connected with the BPWM drive end through a resistor R28, the gate of the MOS tube Q8 is also connected with the ground through a resistor R37, the source of the MOS tube Q8 is connected with the ground;

[0017] The WPWM drive circuit is provided with MOS tube Q9 and MOS tube Q10, the gate of the MOS tube Q9 is connected with the WPWM drive end through a resistor R11, the gate of the MOS tube Q9 is also connected with the ground through a resistor R29, the source of the MOS tube Q9 is connected with the ground, the drain of the MOS tube Q9 and the MOS tube Q10 are connected together and connected with the driving power V+ through the white indicator light band, the gate of the MOS tube Q10 is connected with the WPWM drive end through a resistor R14, the gate of the MOS tube Q10 is also connected with the ground through a resistor R30, the source of the MOS tube Q10 is connected with the ground.

[0018] The MCU controller controls the on-off of the corresponding MOS tube and then controls the display of the corresponding indicator light band; since the indicator light band of the charging pile is long, the driving force of one MOS tube is not enough, so two MOS tubes are needed to drive the same color indicator light band at the same time.

[0019] As preferred: the enablement circuit is provided with a resistor R22, the front end of the resistor R22 is connected to the driving control end PA2 of the MCU controller, the front end of the resistor R22 is also connected to the ground through a capacitor C35, the back end of the resistor R22 is connected to the base of a NPN type transistor Q1, the back end of the resistor R22 is also connected to the ground through a resistor R24, the emitter of the transistor Q1 is connected to the ground, the collector of the transistor Q1 is connected to the gate of a MOS tube IC7 and a MOS tube IC8 through a resistor R19, the source of the MOS tube IC7 and the MOS tube IC8 is connected to a driving power supply V+, and the drain of the MOS tube IC7 and the MOS tube IC8 is used to supply power for the indicator light strip.

[0020] The enablement circuit is used to control the on-off of the driving power supply of the indicator light strip.

[0021] As preferred: the vehicle charging information includes but is not limited to battery capacity data and battery temperature data of the vehicle.

[0022] The MCU controller controls the driving charging pile indicator light strip to display corresponding state effects according to the vehicle charging information, and the state effects of the indicator light strip include but are not limited to breathing effect, flowing water effect and constant light effect.

[0023] The state effect display of the indicator light strip is as follows:

[0024] First, in the case that the charging pile is powered on, according to different time periods and power usage (voltage and current), the indicator light strip itself will exhibit different performance states. During the day from 8:00 to 20:00, it is in the current usage peak state, the power consumption is high, the indicator light strip exhibits the flowing water effect and the rate is fast, and the period is 200 ms; during the night from 20:00 to 8:00, it is in the current valley state, the power consumption is low, the indicator light strip exhibits the flowing water effect and the rate is slow, and the period is 800 ms.

[0025] It is judged whether a vehicle enters the charging, if yes, the entire indicator light strip will change to a single color, and the theme is red for display, otherwise it will continue to display the flowing water effect according to the display peak and valley states;

[0026] When the vehicle is charging, the battery capacity feedback by the vehicle machine is represented by the indicator light strip light ratio, for example, if the remaining capacity is 10%, only 1 light of 10 lights on the light strip is on, indicating the battery capacity, and the same ratio of the number of lights is on.

[0027] If the vehicle is in normal charging condition, the last indicator light strip corresponding to the current capacity of the indicator light strip displays in a breathing state, and the light ratio of the light strip should match the percentage of the current capacity, and with the increase of the capacity, this state should be continued downward until full.

[0028] During the charging process, the battery temperature detected by the car machine is also reflected in the lamp strip effect. When the battery temperature is between-40 and 20 degrees, the breathing rate of the lamp indicating the charging in the breathing state in the indicator lamp strip is slow, and the period is 500 ms; when the battery temperature is between 20 and 80 degrees, the breathing rate of the breathing lamp in the indicator lamp strip is faster, and the period is 300 ms; when the battery temperature exceeds 80 degrees, the breathing rate of the breathing lamp in the indicator lamp strip is fast, and the period is 100 ms;

[0029] When the battery power becomes 100%, that is, the battery power is full, the theme color of the entire indicator lamp strip changes to green. At this time, the entire lamp strip will also exhibit different breathing modes at different rates corresponding to the battery temperature. When the temperature is about to exceed the dangerous temperature of the battery, the output voltage of the entire charging pile is reduced to ensure normal charging, and the owner is warned.

[0030] As a preferred: a first power supply circuit is further provided, which outputs working power V+_MCU and driving power V+, the working power V+_MCU is outputted 5V power through a second power supply circuit, and the 5V power is outputted 3.3V power through a third power supply circuit.

[0031] Each power supply circuit is used to supply power to the corresponding circuit module.

[0032] As a preferred: the first power supply circuit is provided with a 24V power supply, which is connected to ground in series with a capacitor C12, connected to ground in series with a bidirectional voltage stabilizing diode D4, connected to ground in series with a resistor R2, connected to ground in series with a capacitor C8, connected to ground in series with a capacitor C9, connected to ground in series with a capacitor C10 and a resistor R38 in sequence, connected to ground in series with a capacitor C7 and a resistor R39 in sequence, connected to ground in series with a capacitor C11, and connected to the anode of a diode D1. The cathode of the diode D1 is connected to the output working power V+_MCU in series with a resistor R1, and the working power V+_MCU is connected to ground in series with a capacitor C1.

[0033] The 24V power supply is also connected with the source of MOS tube IC1 and MOS tube IC2, the drain of MOS tube IC1 and MOS tube IC2 is connected together, the drain of both is connected with the front end of inductor L1, the rear end of inductor L1 outputs driving power supply V+; the gate of MOS tube IC1 and MOS tube IC2 is connected together, the gate of both is connected with the anode of voltage stabilizing diode D2, the cathode of voltage stabilizing diode D2 is connected with the drain common end, the gate common end of MOS tube IC1 and MOS tube IC2 is connected with the anode of voltage stabilizing diode D3, the cathode of voltage stabilizing diode D3 is connected with the drain common end, the gate common end of MOS tube IC1 and MOS tube IC2 is also connected with resistance R3 and then grounded, the gate common end of MOS tube IC1 and MOS tube IC2 is also connected with resistance R4 and then grounded; the drain common end of MOS tube IC1 and MOS tube IC2 is also connected with electrolytic capacitor C2 and then grounded, the drain common end of MOS tube IC1 and MOS tube IC2 is also connected with capacitor C3 and then grounded;

[0034] The driving power supply V+ is connected with capacitor C4 and then grounded, the driving power supply V+ is also connected with capacitor C5 and then grounded, the driving power supply V+ is also connected with capacitor C6 and then grounded.

[0035] As preferred: the secondary power supply circuit is provided with first voltage reducer IC3, the input end of the first voltage reducer IC3 obtains working power supply V+_MCU, the working power supply V+_MCU is also connected with capacitor C20 and then grounded, the working power supply V+_MCU is also connected with capacitor C21 and then grounded, the working power supply V+_MCU is also connected with capacitor C22 and then grounded, the working power supply V+_MCU is also connected with resistance R6 and then connected with the enable end EN of the first voltage reducer IC3, the output state PG end of the first voltage reducer IC3 is connected with resistance R9 and then grounded;

[0036] The output end BST of the first voltage reducer IC3 is connected with resistance R5 and capacitor C13 in sequence and then connected with the front end of inductor L2, the rear end of the inductor L2 is connected with inductor L3 and then outputs 5V power supply, the 5V power supply is connected with capacitor C18 and then grounded, the rear end of the inductor L2 is also connected with capacitor C14 and then grounded, the rear end of the inductor L2 is also connected with capacitor C15 and then grounded, the rear end of the inductor L2 is also connected with capacitor C16 and then grounded, the rear end of the inductor L2 is also connected with capacitor C19 and then grounded, the rear end of the inductor L2 is also connected with capacitor C17 and then grounded;

[0037] The rear end of the inductor L2 is also connected with resistance R8 and resistance R10 in sequence and then grounded, the common end of the resistance R8 and resistance R10 is connected with resistance R7 and then connected with the feedback end FB of the first voltage reducer IC3.

[0038] Preferably, the three-stage power supply circuit includes a second step-down converter IC9. The input terminal of the second step-down converter IC9 receives a 5V power supply. The input terminal of the second step-down converter IC9 is connected in series with a capacitor C24 and then grounded. The output terminal of the second step-down converter IC9 outputs a 3.3V power supply. The output terminal of the second step-down converter IC9 is connected in series with a capacitor C25 and then grounded.

[0039] The beneficial effects of this utility model are: it enables a comprehensive display of the vehicle's charging status and battery power, making it easier for vehicles without charging indicator lights to understand their status and battery condition, and increasing safety during the vehicle charging process. Attached Figure Description

[0040] Figure 1 This is a structural block diagram of the present invention;

[0041] Figure 2 This is the circuit diagram for the MCU controller.

[0042] Figure 3 This is a circuit diagram for the 485 bus.

[0043] Figure 4 This is a PWM drive circuit diagram;

[0044] Figure 5 Enable circuit diagram;

[0045] Figure 6 This is a primary power supply circuit diagram;

[0046] Figure 7 This is a circuit diagram for a two-stage power supply.

[0047] Figure 8 This is a three-stage power supply circuit diagram. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] like Figure 1 , Figure 2 As shown: A multi-functional charging pile indicator light strip circuit is provided, which is equipped with an MCU controller. The MCU controller is connected to the vehicle bus of the charging vehicle via an RS485 bus circuit. The MCU controller is connected to the indicator light strip via a PWM drive circuit. An enable circuit is also provided between the MCU controller and the indicator light strip.

[0050] The MCU controller is provided with four PWM drive ends, and the four PWM drive ends are respectively an RPWM drive end, a GPWM drive end, a BPWM drive end and a WPWM drive end; the indicator light strip is provided with a red indicator light strip, a green indicator light strip, a blue indicator light strip and a white indicator light strip;

[0051] The RPWM drive end is connected with the red indicator light strip through an RPWM drive circuit, the GPWM drive end is connected with the green indicator light strip through a GPWM drive circuit, the BPWM drive end is connected with the blue indicator light strip through a BPWM drive circuit, and the WPWM drive end is connected with the white indicator light strip through a WPWM drive circuit.

[0052] Through the above design, the MCU controller obtains the charging information of the vehicle through the 485 transceiver, and then controls the driving of the charging pile indicator light strip to display the corresponding charging state effect, so as to comprehensively display the charging state and battery capacity of the vehicle, facilitate the understanding of the state of the vehicle without charging indicator light strip and the grasp of the battery condition, and increase the safety during the vehicle charging process.

[0053] The vehicle charging information includes battery capacity data and battery temperature data of the vehicle;

[0054] The MCU controller controls the driving of the charging pile indicator light strip according to the vehicle charging information to display the corresponding state effect, and the state effect of the indicator light strip includes a breathing effect, a flowing water effect and a constant light effect.

[0055] The state effect display of the indicator light strip is as follows:

[0056] First, under the condition that the charging pile is powered on, according to different time periods and power usage (voltage and current), the indicator light strip itself will show different performance states, from 8:00 in the daytime to 20:00 at night, in the current usage peak period, the peak state, the power consumption is high, the indicator light strip shows the flowing water effect and the rate is fast, the period is 200ms; from 20:00 at night to 8:00 in the morning, in the current trough state, the power consumption is low, the indicator light strip shows the flowing water effect and the rate is slow, the period is 800ms;

[0057] It is judged whether a vehicle enters the charging, if yes, the whole indicator light strip will become a single color, and the theme is red for display, otherwise the flowing water effect of the display peak and valley state will continue to be displayed;

[0058] When the vehicle is charging, the battery capacity fed back by the vehicle machine is represented by the indicator light strip light ratio, for example, if the remaining capacity is 10%, only 1 light of 10 lights on the light strip is lit, indicating how much battery capacity, and how many lights are lit.

[0059] If the vehicle is in normal charging condition, the indicator light corresponding to the current power level displays in a breathing state, and the proportion of the light on should match the percentage of the power level at this time. With the increase of the power level, this state should continue downward until full;

[0060] During the charging process, the battery temperature detected by the car machine is also reflected in the light bar effect. When the battery temperature is between-40 and 20 degrees, the breathing rate of the light in the indicator light bar that displays in a breathing state is slow, with a period of 500 ms. When the battery temperature is between 20 and 80 degrees, the breathing rate of the breathing light in the indicator light bar is faster, with a period of 300 ms. When the battery temperature exceeds 80 degrees, the breathing rate of the breathing light in the indicator light bar is fast, with a period of 100 ms.

[0061] When the battery power becomes 100%, i.e. the full battery power, the theme color of the entire indicator light bar changes to green. At this time, the entire light bar will also exhibit a breathing mode with different rates corresponding to the battery temperature. When the temperature is about to exceed the dangerous temperature of the battery, the output voltage of the entire charging pile is reduced to ensure normal charging, while warning the owner.

[0062] As shown in Figure 3 The RS485 bus circuit is provided with a 485 transceiver IC4. The positive end A and the negative end B of the 485 transceiver IC4 obtain vehicle charging information through the vehicle-mounted bus. The positive end A of the 485 transceiver IC4 is connected to the ground through a series connection of a bidirectional voltage stabilizing diode D6. The negative end B of the 485 transceiver IC4 is connected to the ground through a series connection of a bidirectional voltage stabilizing diode D5. The positive end A and the negative end B of the 485 transceiver IC4 are further connected in series with a resistor R13. The positive end A of the 485 transceiver IC4 is connected to a 5V power supply through a series connection of a resistor R12. The negative end B of the 485 transceiver IC4 is connected to the ground through a series connection of a resistor R16.

[0063] The output end RO of the 485 transceiver IC4 is connected to the receiving end PA10 of the MCU controller. The input end DI of the 485 transceiver IC4 is connected to the transmitting end PA9 of the MCU controller. The receiver enable end RE and the driver enable end DE of the 485 transceiver IC4 are connected to the enable driving end PA11 of the MCU controller. The receiver enable end RE and the driver enable end DE of the 485 transceiver IC4 are further connected in common series with a resistor R40 and then connected to the ground.

[0064] As shown in Figure 4The MOS tube Q3, the MOS tube Q4 are arranged in the GPWM drive circuit, the gate of the MOS tube Q3 is connected with the GPWM drive end through the resistance R17, the gate of the MOS tube Q3 is also connected with the ground through the resistance R32, the source of the MOS tube Q3 is connected with the ground, the drain of the MOS tube Q3 and the MOS tube Q4 are connected together, and the green indicator lamp band is connected with the driving power supply V+ through the drain, the gate of the MOS tube Q4 is connected with the GPWM drive end through the resistance R18, the gate of the MOS tube Q4 is also connected with the ground through the resistance R33, and the source of the MOS tube Q4 is connected with the ground.

[0065] The MOS tube Q5, the MOS tube Q6 are arranged in the RPWM drive circuit, the gate of the MOS tube Q5 is connected with the RPWM drive end through the resistance R20, the gate of the MOS tube Q5 is also connected with the ground through the resistance R34, the source of the MOS tube Q5 is connected with the ground, the drain of the MOS tube Q5 and the MOS tube Q6 are connected together, and the red indicator lamp band is connected with the driving power supply V+ through the drain, the gate of the MOS tube Q6 is connected with the RPWM drive end through the resistance R26, the gate of the MOS tube Q6 is also connected with the ground through the resistance R34, and the source of the MOS tube Q6 is connected with the ground.

[0066] The MOS tube Q7, the MOS tube Q8 are arranged in the BPWM drive circuit, the gate of the MOS tube Q7 is connected with the BPWM drive end through the resistance R27, the gate of the MOS tube Q7 is also connected with the ground through the resistance R36, the source of the MOS tube Q7 is connected with the ground, the drain of the MOS tube Q7 and the MOS tube Q8 are connected together, and the blue indicator lamp band is connected with the driving power supply V+ through the drain, the gate of the MOS tube Q8 is connected with the BPWM drive end through the resistance R28, the gate of the MOS tube Q8 is also connected with the ground through the resistance R37, and the source of the MOS tube Q8 is connected with the ground.

[0067] The MOS tube Q9, the MOS tube Q10 are arranged in the WPWM drive circuit, the gate of the MOS tube Q9 is connected with the WPWM drive end through the resistance R11, the gate of the MOS tube Q9 is also connected with the ground through the resistance R29, the source of the MOS tube Q9 is connected with the ground, the drain of the MOS tube Q9 and the MOS tube Q10 are connected together, and the white indicator lamp band is connected with the driving power supply V+ through the drain, the gate of the MOS tube Q10 is connected with the WPWM drive end through the resistance R14, the gate of the MOS tube Q10 is also connected with the ground through the resistance R30, and the source of the MOS tube Q10 is connected with the ground.

[0068] As Figure 5As shown: the enable circuit is provided with a resistance R22, the front end of the resistance R22 is connected to the drive control end PA2 of the MCU controller, the front end of the resistance R22 is also connected to the ground after a capacitor C35, the back end of the resistance R22 is connected to the base of a NPN type transistor Q1, the back end of the resistance R22 is also connected to the ground after a resistance R24, the emitter of the transistor Q1 is connected to the ground, the collector of the transistor Q1 is connected to the gate of a MOS tube IC7 and a MOS tube IC8 after a resistance R19, the source of the MOS tube IC7 and the MOS tube IC8 is connected to a drive power supply V+, the drain of the MOS tube IC7 and the MOS tube IC8 is used to supply power for the indicator light.

[0069] A primary power supply circuit is also provided, which outputs a working power supply V+_MCU and a drive power supply V+, the working power supply V+_MCU is outputted as a 5V power supply through a secondary power supply circuit, and the 5V power supply is outputted as a 3.3V power supply through a tertiary power supply circuit.

[0070] As shown: Figure 6 The primary power supply circuit is provided with a 24V power supply, which is connected to the ground after a capacitor C12, connected to the ground after a bidirectional stabilizing diode D4, connected to the ground after a resistance R2, connected to the ground after a capacitor C8, connected to the ground after a capacitor C9, connected to the ground after a capacitor C10 and a resistance R38 in sequence, connected to the ground after a capacitor C7 and a resistance R39 in sequence, connected to the ground after a capacitor C11, and connected to the anode of a diode D1, the cathode of the diode D1 is connected to the ground after a resistance R1 to output a working power supply V+_MCU, and the working power supply V+_MCU is connected to the ground after a capacitor C1;

[0071] The 24V power supply is also connected to the source of a MOS tube IC1 and a MOS tube IC2, the drain of the MOS tube IC1 and the MOS tube IC2 is connected together, the drain common end of the two is connected to the front end of an inductor L1, the back end of the inductor L1 outputs a drive power supply V+, the gate of the MOS tube IC1 and the MOS tube IC2 is connected together, the gate common end of the two is connected to the anode of a stabilizing diode D2, the cathode of the stabilizing diode D2 is connected to the drain common end, the gate common end of the MOS tube IC1 and the MOS tube IC2 is connected to the anode of a stabilizing diode D3, the cathode of the stabilizing diode D3 is connected to the drain common end, the gate common end of the MOS tube IC1 and the MOS tube IC2 is also connected to the ground after a resistance R3, and connected to the ground after a resistance R4, the drain common end of the MOS tube IC1 and the MOS tube IC2 is also connected to the ground after an electrolytic capacitor C2, and connected to the ground after a capacitor C3;

[0072] The driving power supply V+ is connected to ground after capacitor C4, the driving power supply V+ is also connected to ground after capacitor C5, and the driving power supply V+ is also connected to ground after capacitor C6.

[0073] like Figure 7 As shown: The secondary power supply circuit is equipped with a first step-down converter IC3. The input terminal of the first step-down converter IC3 obtains the working power supply V+_MCU. The working power supply V+_MCU is connected to ground after capacitor C20 in series. The working power supply V+_MCU is also connected to ground after capacitor C21 in series. The working power supply V+_MCU is also connected to ground after capacitor C22 in series. The working power supply V+_MCU is also connected to the enable terminal EN of the first step-down converter IC3 after resistor R6 in series. The output state PG terminal of the first step-down converter IC3 is connected to ground after resistor R9 in series.

[0074] The output terminal BST of the first step-down transformer IC3 is connected to the front end of the inductor L2 after being connected in series with resistor R5 and capacitor C13. The rear end of the inductor L2 is connected in series with inductor L3 to output a 5V power supply. This 5V power supply is connected in series with capacitor C18 and then grounded. The rear end of the inductor L2 is also connected in series with capacitor C14 and then grounded. The rear end of the inductor L2 is also connected in series with capacitor C15 and then grounded. The rear end of the inductor L2 is also connected in series with capacitor C16 and then grounded. The rear end of the inductor L2 is also connected in series with capacitor C19 and then grounded. The rear end of the inductor L2 is also connected in series with capacitor C17 and then grounded.

[0075] The inductor L2 is connected to ground via resistors R8 and R10 in series at its rear end. The common terminal of resistors R8 and R10 is connected to the feedback terminal FB of the first step-down converter IC3 via resistor R7 in series.

[0076] like Figure 8 As shown: The three-stage power supply circuit is equipped with a second step-down transformer IC9. The input terminal of the second step-down transformer IC9 obtains a 5V power supply. The input terminal of the second step-down transformer IC9 is also connected in series with a capacitor C24 and then grounded. The output terminal of the second step-down transformer IC9 outputs a 3.3V power supply. The output terminal of the second step-down transformer IC9 is also connected in series with a capacitor C25 and then grounded.

[0077] In this embodiment, the MCU controller IC5 uses the GD32F303CCT6 chip, the 485 transceiver IC4 uses the ST485Ex chip, the second step-down converter IC9 uses the TS1117BCW33 chip, and the first step-down converter IC3 uses the MPQ4423H chip.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional charging pile indicator light with circuitry, characterized in that: The MCU controller is connected with the vehicle-mounted bus of the charging vehicle through an RS485 bus circuit, the MCU controller is connected with the indicator light belt through a PWM drive circuit, and an enabling circuit is further arranged between the MCU controller and the indicator light belt. The MCU controller is provided with four PWM drive ends, which are respectively an RPWM drive end, a GPWM drive end, a BPWM drive end and a WPWM drive end. The RPWM drive end is connected with the red indicator light belt through an RPWM drive circuit, the GPWM drive end is connected with the green indicator light belt through a GPWM drive circuit, the BPWM drive end is connected with the blue indicator light belt through a BPWM drive circuit, and the WPWM drive end is connected with the white indicator light belt through a WPWM drive circuit.

2. The multi-functional charging pile indicator light strip circuit according to claim 1, characterized in that: The RS485 bus circuit is provided with a 485 transceiver IC4, the positive end A and the negative end B of the 485 transceiver IC4 acquire vehicle charging information through the vehicle-mounted bus, the positive end A of the 485 transceiver IC4 is connected with the ground through a series connection of a bidirectional voltage stabilizing diode D6, the negative end B of the 485 transceiver IC4 is connected with the ground through a series connection of a bidirectional voltage stabilizing diode D5, a resistor R13 is further connected in series between the positive end A and the negative end B of the 485 transceiver IC4, the positive end A of the 485 transceiver IC4 is connected with a 5V power supply through a series connection of a resistor R12, and the negative end B of the 485 transceiver IC4 is connected with the ground through a series connection of a resistor R16. The output end RO of the 485 transceiver IC4 is connected with the receiving end PA10 of the MCU controller, the input end DI of the 485 transceiver IC4 is connected with the sending end PA9 of the MCU controller, the receiver enabling end RE and the driver enabling end DE of the 485 transceiver IC4 are connected with the enabling drive end PA11 of the MCU controller, and the receiver enabling end RE and the driver enabling end DE of the 485 transceiver IC4 are further connected with the ground through a common series connection of a resistor R40.

3. The multi-functional charging post indicator light strip circuit of claim 1, wherein: The GPWM drive circuit is provided with a MOS tube Q3 and a MOS tube Q4, the gate of the MOS tube Q3 is connected with the GPWM drive end through a series connection of a resistor R17, the gate of the MOS tube Q3 is further connected with the ground through a series connection of a resistor R32, the source of the MOS tube Q3 is connected with the ground, the drain of the MOS tube Q3 and the drain of the MOS tube Q4 are connected together and connected with a driving power supply V+ through the green indicator light belt, the gate of the MOS tube Q4 is connected with the GPWM drive end through a series connection of a resistor R18, the gate of the MOS tube Q4 is further connected with the ground through a series connection of a resistor R33, and the source of the MOS tube Q4 is connected with the ground. The RPWM drive circuit is provided with MOS tube Q5 and MOS tube Q6, the gate of the MOS tube Q5 is connected to the RPWM drive end through a resistor R20, the gate of the MOS tube Q5 is also connected to the ground through a resistor R34, the source of the MOS tube Q5 is connected to the ground, the drain of the MOS tube Q5 and the drain of the MOS tube Q6 are connected together and connected to the red indicator light band through a driving power supply V+, the gate of the MOS tube Q6 is connected to the RPWM drive end through a resistor R26, the gate of the MOS tube Q6 is also connected to the ground through a resistor R34, and the source of the MOS tube Q6 is connected to the ground. The BPWM drive circuit is provided with MOS tube Q7 and MOS tube Q8, the gate of the MOS tube Q7 is connected to the BPWM drive end through a resistor R27, the gate of the MOS tube Q7 is also connected to the ground through a resistor R36, the source of the MOS tube Q7 is connected to the ground, the drain of the MOS tube Q7 and the drain of the MOS tube Q8 are connected together and connected to the blue indicator light band through a driving power supply V+, the gate of the MOS tube Q8 is connected to the BPWM drive end through a resistor R28, the gate of the MOS tube Q8 is also connected to the ground through a resistor R37, and the source of the MOS tube Q8 is connected to the ground. The WPWM drive circuit is provided with MOS tube Q9 and MOS tube Q10, the gate of the MOS tube Q9 is connected to the WPWM drive end through a resistor R11, the gate of the MOS tube Q9 is also connected to the ground through a resistor R29, the source of the MOS tube Q9 is connected to the ground, the drain of the MOS tube Q9 and the drain of the MOS tube Q10 are connected together and connected to the white indicator light band through a driving power supply V+, the gate of the MOS tube Q10 is connected to the WPWM drive end through a resistor R14, the gate of the MOS tube Q10 is also connected to the ground through a resistor R30, and the source of the MOS tube Q10 is connected to the ground.

4. The multi-functional charging station indicator light strip circuit of claim 1, wherein: The enable circuit is provided with a resistor R22, the front end of the resistor R22 is connected to the driving control end PA2 of the MCU controller, the front end of the resistor R22 is also connected to the ground through a capacitor C35, the rear end of the resistor R22 is connected to the base of a NPN type transistor Q1, the rear end of the resistor R22 is also connected to the ground through a resistor R24, the emitter of the transistor Q1 is connected to the ground, the collector of the transistor Q1 is connected to the gates of MOS tubes IC7 and IC8 through a resistor R19, the sources of the MOS tubes IC7 and IC8 are connected to a driving power supply V+, and the drains of the MOS tubes IC7 and IC8 are used to supply power to the indicator light band.

5. The multi-functional charging post indicator light strip circuit of claim 2, wherein: The vehicle charging information includes, but is not limited to, battery capacity data and battery temperature data of the vehicle.

6. The multi-functional charging station indicator light strip circuit of claim 1, wherein: A primary power supply circuit is further provided, which outputs a working power supply V+_MCU and a driving power supply V+, the working power supply V+_MCU is output through a secondary power supply circuit to a 5V power supply, and the 5V power supply is output through a tertiary power supply circuit to a 3.3V power supply.

7. The multi-functional charging post indicator light strip circuit of claim 6, wherein: The primary power supply circuit is provided with a 24V power supply connected in series with a capacitor C12 and then grounded, connected in series with a bidirectional stabilizing diode D4 and then grounded, connected in series with a resistor R2 and then grounded, connected in series with a capacitor C8 and then grounded, connected in series with a capacitor C9 and then grounded, connected in series with a capacitor C10 and a resistor R38 and then grounded, connected in series with a capacitor C7 and a resistor R39 and then grounded, connected in series with a capacitor C11 and then grounded, and connected with an anode of a diode D1, and an output of a cathode of the diode D1 is connected in series with a resistor R1 and then outputs a working power supply V+_MCU, and the working power supply V+_MCU is connected in series with a capacitor C1 and then grounded; The 24V power supply is also connected with sources of MOS tubes IC1 and IC2, the drains of the MOS tubes IC1 and IC2 are connected together, the drain common end of the two is connected with a front end of an inductor L1, a rear end of the inductor L1 outputs a driving power supply V+, the gates of the MOS tubes IC1 and IC2 are connected together, the gate common end of the two is connected with an anode of a stabilizing diode D2, a cathode of the stabilizing diode D2 is connected with the drain common end, the gate common end of the MOS tubes IC1 and IC2 is connected with an anode of a stabilizing diode D3, a cathode of the stabilizing diode D3 is connected with the drain common end, the gate common end of the MOS tubes IC1 and IC2 is also connected in series with a resistor R3 and then grounded, and connected in series with a resistor R4 and then grounded; the drain common end of the MOS tubes IC1 and IC2 is also connected in series with an electrolytic capacitor C2 and then grounded, and connected in series with a capacitor C3 and then grounded; The driving power supply V+ is connected in series with a capacitor C4 and then grounded, connected in series with a capacitor C5 and then grounded, and connected in series with a capacitor C6 and then grounded.

8. The multi-functional charging post indicator light strip circuit of claim 6, wherein: The secondary power supply circuit is provided with a first voltage reducer IC3, an input end of the first voltage reducer IC3 obtains a working power supply V+_MCU, the working power supply V+_MCU is also connected in series with a capacitor C20 and then grounded, connected in series with a capacitor C21 and then grounded, connected in series with a capacitor C22 and then grounded, and connected in series with a resistor R6 and then connected with an enable end EN of the first voltage reducer IC3, and an output state PG end of the first voltage reducer IC3 is connected in series with a resistor R9 and then grounded; An output end BST of the first voltage reducer IC3 is connected in series with a resistor R5 and a capacitor C13 and then connected with a front end of an inductor L2, a rear end of the inductor L2 is connected in series with an inductor L3 and then outputs a 5V power supply, the 5V power supply is connected in series with a capacitor C18 and then grounded, the rear end of the inductor L2 is also connected in series with a capacitor C14 and then grounded, connected in series with a capacitor C15 and then grounded, connected in series with a capacitor C16 and then grounded, connected in series with a capacitor C19 and then grounded, and connected in series with a capacitor C17 and then grounded; The back end of the inductor L2 is connected to ground through a resistor R8 and a resistor R10 in sequence, and the common end of the resistor R8 and the resistor R10 is connected to the feedback end FB of the first voltage reducer IC3 through a resistor R7.

9. The multi-functional charging station indicator light strip circuit of claim 6, wherein: The third power supply circuit is provided with a second voltage reducer IC9, the input end of the second voltage reducer IC9 obtains a 5V power supply, the input end of the second voltage reducer IC9 is connected to ground through a capacitor C24 in sequence, and the output end of the second voltage reducer IC9 outputs a 3.3V power supply, and the output end of the second voltage reducer IC9 is connected to ground through a capacitor C25 in sequence.

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