Power supply driving circuit of electric roller shoes

Abstract

The utility model discloses a power supply drive circuit for electric roller shoes, including a power supply circuit for power supply, the power supply circuit supplies power to an onboard drive circuit, the power supply circuit and the onboard drive circuit are built into the electric roller shoes, the onboard drive circuit communicates with the remote control drive circuit via Bluetooth, the onboard drive circuit includes an isolation chip circuit, the isolation chip circuit is connected to a half-bridge drive circuit, and the half-bridge drive circuit is connected to a drive motor of the electric roller shoes. In the utility model, the power supply circuit uses a power supply voltage divider circuit to divide the power supply, stabilizes the output through a power supply voltage stabilizing output circuit, and detects the power through a power supply power detection circuit. In the utility model, the onboard drive circuit outputs circuit signals through an isolation chip circuit and a half-bridge drive circuit, and can perform non-disassembly detection of the motor connection through a motor connection detection circuit. The utility model provides a complete set of circuit connections to meet the use of electric roller shoes.

Description

Technical Field

[0001] The utility model belongs to the field of electric roller shoe driving, and in particular relates to a power supply driving circuit of an electric roller shoe. Background Art

[0002] Electric roller shoes, also known as electric skateboards or electric skateboards, are a modern form of personal transportation that combines traditional roller shoes with electric motor technology. The shoes have wheels and electric motors on the bottom, and users can control speed and direction through remote control or built-in sensors. Electric roller shoes provide a fun and environmentally friendly way to travel, especially for short trips or recreational activities.

[0003] At present, there is no power supply and drive circuit for electric roller shoes. Summary of the invention

[0004] The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a power supply driving circuit for electric roller shoes.

[0005] The technical solution of the utility model is: a power supply drive circuit of an electric roller shoe, including a power supply circuit for power supply, the power supply circuit supplies power to an onboard drive circuit, the power supply circuit and the onboard drive circuit are built into the electric roller shoe, the onboard drive circuit communicates with the remote control drive circuit via Bluetooth, the onboard drive circuit includes an isolation chip circuit, the isolation chip circuit is connected to a half-bridge drive circuit, and the half-bridge drive circuit is connected to a drive motor of the electric roller shoe.

[0006] Furthermore, the half-bridge driving circuit converts the high and low level signals received and outputs the working or stopping voltage of the MOS tube.

[0007] Furthermore, the MOS tube and the MBR20100CT Schottky diode of the half-bridge driving circuit are connected in parallel to rectify and drive the current output by the motor.

[0008] Furthermore, the power supply circuit includes a power supply voltage divider circuit, a power supply voltage stabilization output circuit, a fuse protection circuit, and a power supply power detection circuit. The power supply voltage divider circuit divides the 24V power supply and outputs a 12V power supply voltage for the half-bridge drive circuit.

[0009] Furthermore, the power supply voltage stabilization output circuit performs voltage stabilization and filtering on the output voltage to supply power to the isolation chip circuit.

[0010] Furthermore, a fuse is provided in the fuse protection circuit to avoid circuit overload and protect circuit components.

[0011] Furthermore, the onboard drive circuit includes an isolation chip circuit, a half-bridge drive circuit, a motor connection detection circuit, a circuit board log output detection circuit, a power supply external interface circuit, a main chip program burning interface circuit, an LED indication circuit, and a synchronization circuit.

[0012] Furthermore, the remote control driving circuit includes a remote control charging circuit, a remote control voltage conversion circuit, a remote control voltage stabilizing output circuit, a remote control control circuit, a battery voltage detection circuit, an OLED display circuit, a remote control Bluetooth communication circuit, and a motor end communication circuit.

[0013] Furthermore, the remote control Bluetooth communication circuit and the motor end communication circuit communicate with each other via Bluetooth.

[0014] The beneficial effects of the utility model are as follows:

[0015] The power supply circuit of the utility model adopts a power supply voltage divider circuit to divide the power supply voltage, a power supply voltage stabilizing output circuit to stabilize the output voltage, and a power supply electric quantity detection circuit to detect the electric quantity.

[0016] In the utility model, the onboard drive circuit outputs the circuit signal through the isolation chip circuit and the half-bridge drive circuit, and the motor connection can be detected in a non-disassembly manner through the motor connection detection circuit.

[0017] In the utility model, the remote control driving circuit realizes voltage conversion through the remote control voltage conversion circuit, realizes voltage stabilization output through the remote control voltage stabilization output circuit, and realizes direct display of circuit parameters through the OLED display circuit.

[0018] The utility model provides a complete set of circuit connections for powering and driving the electric roller shoes, thereby meeting the use requirements of the electric roller shoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a circuit module diagram of the utility model;

[0020] Figure 2 is a circuit diagram of a power voltage divider circuit in the present invention;

[0021] Figure 3 A circuit diagram of a power supply voltage stabilization output circuit in the present invention;

[0022] Figure 4 is a circuit diagram of the fuse protection circuit in the present invention;

[0023] Figure 5 A circuit diagram of a power supply electric quantity detection circuit in the present invention;

[0024] Figure 6 A circuit diagram of the isolation chip circuit in the present invention;

[0025] Figure 7 is a circuit diagram of a half-bridge driving circuit in the present invention;

[0026] Figure 8 A circuit diagram of a motor connection detection circuit in the present invention;

[0027] Fig. 9 A circuit diagram of a circuit board log output detection circuit in the present invention;

[0028] Fig.10 A circuit diagram of a power supply external interface circuit in the present invention;

[0029] Fig.11 A circuit diagram of a main chip program burning interface circuit in the present invention;

[0030] Fig.12 It is a circuit diagram of the LED indicator circuit in the present invention;

[0031] Fig.13 is a circuit diagram of a synchronization circuit in the present invention;

[0032] Fig.14 A circuit diagram of a remote controller charging circuit in the present invention;

[0033] Fig.15 is a circuit diagram of a voltage conversion circuit of a remote controller in the present invention;

[0034] FIG16 is a circuit diagram of a voltage-stabilizing output circuit of a remote controller in the present invention;

[0035] Fig.17 is a circuit diagram of a remote controller control circuit in the present invention;

[0036] Fig.18 is a circuit diagram of a battery voltage detection circuit in the present invention;

[0037] Fig.19 A circuit diagram of an OLED display circuit in the present invention;

[0038] Fig. 20 is a circuit diagram of a Bluetooth communication circuit of a remote controller in the present invention;

[0039] Fig.21 The motor end communication circuit of the present invention;

[0040] in:

[0041] 1 Power supply circuit 2 Onboard drive circuit

[0042] 3. Remote control drive circuit

[0043] 11 Power supply voltage divider circuit 12 Power supply voltage stabilization output circuit

[0044] 13 Fuse protection circuit 14 Power supply detection circuit

[0045] 21 Isolation chip circuit 22 Half-bridge drive circuit

[0046] 23 Motor connection detection circuit 24 Circuit board log output detection circuit

[0047] 25 Power supply external interface circuit 26 Main chip program burning interface circuit

[0048] 27 led indication circuit 28 synchronization circuit

[0049] 31 Remote controller charging circuit 32 Remote controller voltage conversion circuit

[0050] 33 Remote control voltage stabilization output circuit 34 Remote control control circuit

[0051] 35 battery voltage detection circuit 36 ​​oled display circuit

[0052] 37 Remote controller Bluetooth communication circuit 38 Motor end communication circuit DETAILED DESCRIPTION

[0053] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0054] like Figures 1 to 21 As shown, a power supply drive circuit of an electric roller shoe includes a power supply circuit 1 for power supply, the power supply circuit 1 supplies power to an onboard drive circuit 2, the power supply circuit 1 and the onboard drive circuit 2 are built into the electric roller shoe, the onboard drive circuit 2 communicates with the remote control drive circuit 3 via Bluetooth, the onboard drive circuit 2 includes an isolation chip circuit 21, the isolation chip circuit 21 is connected to a half-bridge drive circuit 22, and the half-bridge drive circuit 22 is connected to a drive motor of the electric roller shoe.

[0055] The half-bridge driving circuit 22 converts the high and low level signals received and outputs the working or stopping voltage of the MOS tube.

[0056] The MOS tube and the MBR20100CT Schottky diode of the half-bridge driving circuit 22 are connected in parallel to rectify and drive the current output by the motor.

[0057] The power supply circuit 1 includes a power supply voltage divider circuit 11, a power supply voltage stabilization output circuit 12, a fuse protection circuit 13, and a power supply power detection circuit 14. The power supply voltage divider circuit 11 divides the 24V power supply and outputs a 12V power supply voltage for the half-bridge drive circuit 22.

[0058] The power supply voltage stabilization output circuit 12 performs voltage stabilization and filtering on the output voltage to supply power to the isolation chip circuit 21 .

[0059] The fuse protection circuit 13 is provided with a fuse to prevent circuit overload and protect circuit components.

[0060] The onboard drive circuit 2 includes an isolation chip circuit 21, a half-bridge drive circuit 22, a motor connection detection circuit 23, a circuit board log output detection circuit 24, a power supply external interface circuit 25, a main chip program burning interface circuit 26, an LED indication circuit 27, and a synchronization circuit 28.

[0061] The remote control driving circuit 3 includes a remote control charging circuit 31, a remote control voltage conversion circuit 32, a remote control voltage stabilizing output circuit 33, a remote control control circuit 34, a battery voltage detection circuit 35, an OLED display circuit 36, a remote control Bluetooth communication circuit 37, and a motor end communication circuit 38.

[0062] The remote controller Bluetooth communication circuit 37 and the motor end communication circuit 38 communicate with each other via Bluetooth.

[0063] Specifically, the power supply circuit 1 is powered by a DC 24V power lithium battery, and uses electrolytic capacitors (220nf-1000nf), chip capacitors and SMBJ24CATVS transient voltage suppression diodes to stabilize and filter the power supply, and absorb current pulses generated by starting and stopping the motor.

[0064] Specifically, Figure 2 It is a circuit diagram of the power voltage divider circuit in the present invention. The power voltage divider circuit 11 uses TPS54302DDCR to divide the 24V power supply and output a 12V voltage for powering the half-bridge driver IR2104STRPBF in the half-bridge drive circuit 22.

[0065] The buck converter TPS54302DDCR includes a GND terminal, a BOOT terminal, a SW terminal, an EN terminal, a VIN terminal, and an FB terminal. The VIN terminal is connected to a parallel circuit group. The parallel circuit group includes a transient voltage suppression diode and three capacitors in parallel. The transient voltage suppression diode may not be limited to SMBJ24CA; the BOOT terminal is connected in series with a capacitor C2 and an inductor L1; the BOOT terminal and the FB terminal are connected with a resistor R1 and a resistor R2 in series, and a capacitor C5 is connected in parallel at both ends of the resistor R2, a resistor R3 is connected to the ground terminal and the FB terminal, and capacitors C1 and C3 are connected in parallel to the ground terminal and the BOOT terminal.

[0066] Specifically, Figure 3This is a circuit diagram of the power supply voltage stabilization output circuit in the present invention. The power supply voltage stabilization output circuit 12 adopts the AMS1117-3.3 positive low-voltage regulator to output a 3.3V voltage, and the output 3.3V voltage is connected in parallel with a capacitor for voltage stabilization and filtering, which is used for the main chip N32G030C8L7 and the Bluetooth module; at the same time, the AMS1117-3.3 regulator is connected to the LED. When the remote control is paired with the host, the LED will flash, and when the Bluetooth is connected to the host, the LED will be always on.

[0067] The AMS1117-3.3 voltage regulator includes a VOUT terminal, a VIN terminal, and a TAB terminal. Capacitors C11 and C12 are connected in parallel between the VOUT terminal and the ground terminal, and capacitors C15 and C16 are connected in parallel between the VIN terminal and the ground terminal.

[0068] Specifically, Figure 4 The circuit diagram of the fuse protection circuit in the present invention is shown in FIG. 1 . The fuse protection circuit 13 includes a fuse (10A) for protecting the circuit board from current overload and equipment damage.

[0069] Specifically, Figure 5 : is a circuit diagram of the power supply power detection circuit in the present invention. The power supply power detection circuit 14 is connected to the voltage detection of the main control chip to monitor the battery power supply of the DC motor.

[0070] The power supply capacity detection circuit 14 includes resistors R4, R5, R6, and C8. Resistor R4 is connected to the VBAT terminal, resistor R5 is connected to the BAT_ADC terminal, resistor R6 and capacitor C8 are connected in parallel to the GND terminal, and finally the free ends of the three are connected.

[0071] Specifically, Figure 6 This is a circuit diagram of the isolation chip circuit in the present invention. The isolation chip circuit 21 adopts the 74LV245APW isolation chip, so that the main control chip and the half-bridge chip are not directly connected, and the signal of the main chip is converted into a control signal and output to the IR2104STRPBF half-bridge driver for controlling the start, speed, stop and reverse information of the motor.

[0072] Specifically, the A0 end of the 74LV245APW isolation chip is connected to the MOT_PWM1 end, the A1 end is connected to the MOT_PWM2 end, the A3 end is connected to the SE_PWM1 end, the VCC end is connected in series with C19, the B0 end is connected to the MOTPWM_1 end, the B1 end is connected to the MOTPWM_2 end, and the B15 end is connected to the SEPWM_1 end; a resistor R16 is connected between the MOT_PWM1 end and the ground end, a resistor R15 is connected between the MOT_PWM2 end and the ground end, and a resistor R14 is connected between the SE_PWM1 end and the ground end; a resistor R9 is connected between the MOTPWM_1 end and the ground end, a resistor R10 is connected between the MOTPWM_2 end and the ground end, and a resistor R11 is connected between the SEPWM_1 end and the ground end.

[0073] Specifically, Figure 7 The circuit diagram of the half-bridge driving circuit in the present invention is as follows. After receiving the signal (high or low level) from the transceiver, the half-bridge driving circuit 22 converts the signal and outputs it as the working or stopping voltage of the MOS tube (P75NF75). The MOS tube (P75NF75) is connected in parallel with the MBR20100CT Schottky diode to rectify the current output by the motor and control the current of the motor according to the PWM value, thereby realizing the speed control of the motor.

[0074] Specifically, Figure 8 2 is a circuit diagram of the motor connection detection circuit in the present invention. The motor connection detection circuit 23 facilitates detection of the motor without disassembling the motor. The motor connection detection circuit 23 is the J2 detection point.

[0075] Specifically, Fig. 9 This is a circuit diagram of the circuit board log output detection circuit in the present invention. The circuit board log output detection circuit 24 is used to detect information received by the main chip, signal interference, etc., and improve the circuit board according to the detection results; and a main chip reset interface is provided to reset the main chip.

[0076] Specifically, Fig.10 2 is a circuit diagram of the power external interface circuit of the present invention. The power external interface circuit 25 is used to access a 3.3V chip device.

[0077] The power external interface circuit 25 includes capacitors C30, C31, C32, and C33 connected in parallel.

[0078] Specifically, Fig.11 2 is a circuit diagram of a main chip program burning interface circuit in the present invention. The main chip program burning interface circuit 26 is used for debugging and burning programs to the main chip.

[0079] Specifically, Fig.12 : is a circuit diagram of the LED indication circuit in the present invention, wherein the LED indication circuit 27 is used for connecting signal indication. The LED indication circuit 27 includes a light emitting diode D14.

[0080] Specifically, Fig.13 : is a circuit diagram of the synchronization circuit in the present invention, wherein the synchronization circuit 28 is used to synchronize the clock frequency of the control board with the remote controller for signal transmission.

[0081] Specifically, Fig.14 The circuit diagram of the remote control charging circuit in the present invention is shown in FIG. 31. The remote control charging circuit 31 uses the TP4054 chip as a power linear charger. When charging, the LED light connected to its pin will flash. After charging is completed, the LED will go out, indicating that the battery of the remote control is fully charged.

[0082] A resistor R1 and an LED are connected in series to one pin of the TP4054 chip, and capacitors are connected in series to two ground pins of the TP4054 chip.

[0083] Specifically, Fig.15 3 is a circuit diagram of a remote control voltage conversion circuit in the present invention. The remote control voltage conversion circuit 32 uses H7651-3V3 as a voltage converter, outputs a 3.3V voltage, and connects a capacitor in parallel to the voltage for rectification and filtering.

[0084] Specifically, Figure 16 is a circuit diagram of the remote control voltage stabilization output circuit in the present invention, and the remote control voltage stabilization output circuit 33 uses the RT9193 fixed voltage regulator chip to stabilize the 3.3V voltage; it is used to power the main control chip N32G030K8L7, the remote control display, the serial port debugging interface, and the Bluetooth communication module.

[0085] Specifically, Fig.17 : is a circuit diagram of the remote control circuit of the present invention, wherein the remote control circuit 34 adopts the main control chip N32G030K8L7.

[0086] Specifically, Fig.18 is a circuit diagram of a battery voltage detection circuit in the present invention. The battery voltage detection circuit 35 is used to monitor the battery power of the remote controller.

[0087] Specifically, Fig.19 This is a circuit diagram of the OLED display circuit in the present invention. The OLED display circuit 36 ​​is used to display circuit parameters, and the circuit parameters can be used to feedback information related to the electric roller skates, such as the battery power of each electric roller skate, the current speed, the battery temperature, the forward and reverse rotation of the motor, the current control gear, the battery power of the remote control, and the current ambient temperature.

[0088] Specifically, Fig. 20 is a circuit diagram of the Bluetooth communication circuit of the remote controller in the present invention, Fig.21 It is the motor end communication circuit in the present invention, and the remote control Bluetooth communication circuit 37 and the motor end communication circuit 38 perform Bluetooth communication.

[0089] The motor drive board of the utility model monitors the temperature of the power supply battery and stops the motor output when the temperature exceeds 60 degrees, thereby protecting the battery from overload.

[0090] In the utility model, when the remote controller of the electric roller shoe is powered off or exceeds the receiving range, the power circuit of the electric roller shoe will stop supplying power.

[0091] The power supply circuit of the utility model adopts a power supply voltage divider circuit to divide the power supply voltage, a power supply voltage stabilizing output circuit to stabilize the output voltage, and a power supply electric quantity detection circuit to detect the electric quantity.

[0092] In the utility model, the onboard drive circuit outputs the circuit signal through the isolation chip circuit and the half-bridge drive circuit, and the motor connection can be detected in a non-disassembly manner through the motor connection detection circuit.

[0093] In the utility model, the remote control driving circuit realizes voltage conversion through the remote control voltage conversion circuit, realizes voltage stabilization output through the remote control voltage stabilization output circuit, and realizes direct display of circuit parameters through the OLED display circuit.

[0094] The utility model provides a complete set of circuit connections for powering and driving the electric roller shoes, thereby meeting the use requirements of the electric roller shoes.

Claims

1. A power supply driving circuit for electric roller shoes, comprising a power supply circuit (1) for power supply, characterized in that: The power supply circuit (1) supplies power to the onboard drive circuit (2); the power supply circuit (1) and the onboard drive circuit (2) are built into the electric roller shoe; the onboard drive circuit (2) communicates with the remote control drive circuit (3) via Bluetooth; the onboard drive circuit (2) comprises an isolation chip circuit (21); the isolation chip circuit (21) is connected to a half-bridge drive circuit (22); and the half-bridge drive circuit (22) is connected to a drive motor of the electric roller shoe.

2. The power supply driving circuit of the electric roller shoe according to claim 1, characterized in that: The half-bridge driving circuit (22) converts the high and low level signals received, and outputs the working or stopping voltage of the MOS tube.

3. The power supply driving circuit of the electric roller shoe according to claim 2, characterized in that: The MOS tube and the MBR20100CT Schottky diode of the half-bridge drive circuit (22) are connected in parallel to rectify and drive the current output by the motor.

4. The power supply driving circuit of the electric roller shoe according to claim 3, characterized in that: The power supply circuit (1) comprises a power supply voltage divider circuit (11), a power supply voltage stabilization output circuit (12), a fuse protection circuit (13), and a power supply quantity detection circuit (14); the power supply voltage divider circuit (11) divides the 24V power supply to output a 12V power supply voltage for the half-bridge drive circuit (22).

5. The power supply driving circuit of the electric roller shoe according to claim 4, characterized in that: The power supply voltage stabilization output circuit (12) performs voltage stabilization and filtering on the output voltage to supply power to the isolation chip circuit (21).

6. The power supply driving circuit of the electric roller shoe according to claim 4, characterized in that: The fuse protection circuit (13) is provided with a fuse to prevent circuit overload and protect circuit components.

7. The power supply driving circuit of the electric roller shoe according to claim 1, characterized in that: The onboard drive circuit (2) comprises an isolation chip circuit (21), a half-bridge drive circuit (22), a motor connection detection circuit (23), a circuit board log output detection circuit (24), a power supply external interface circuit (25), a main chip program burning interface circuit (26), an LED indication circuit (27), and a synchronization circuit (28).

8. The power supply driving circuit of the electric roller shoe according to claim 1, characterized in that: The remote control driving circuit (3) comprises a remote control charging circuit (31), a remote control voltage conversion circuit (32), a remote control voltage stabilization output circuit (33), a remote control control circuit (34), a battery voltage detection circuit (35), an OLED display circuit (36), a remote control Bluetooth communication circuit (37), and a motor end communication circuit (38).

9. The power supply driving circuit of the electric roller shoe according to claim 8, characterized in that: The remote controller Bluetooth communication circuit (37) and the motor end communication circuit (38) communicate via Bluetooth.

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