Aircraft high-pressure rescue electric winch

Abstract

The utility model relates to the technical field of rescue electric winches, and provides an aircraft high-pressure rescue electric winch which comprises a protection circuit, a power module, an input module, a control module, a driving module and a control handle. The protection circuit is electrically connected with the input module and is used for reducing the working current; the power supply module is electrically connected with the input module and is used for providing electric energy; the input module is electrically connected with the control module and is used for filtering the signal; the control module is electrically connected with the driving module and is used for transmitting a control signal to the driving module; the control handle is electrically connected with the input module and used for transmitting signals to the input module. By integrating the protection circuit, the power supply module, the input module, the control module, the driving module and the control handle, enough working power is maintained through the control module while the working current is reduced by the protection circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of rescue electric winches, in particular to an aircraft high-voltage rescue electric winch. Background Art

[0002] The rescue electric winch belongs to the equipment and device system of the helicopter. It is mainly used to perform rescue missions. With the assistance of the winch operator and lifeguards, the victims and people in distress are rescued back to the helicopter. It can also be used to lift small cargo. The rescue electric winches currently used in aircraft are mainly powered by DC +28V. The current is large when the product is fully loaded, and the rated current can reach 125A. The motor heats up seriously and the working efficiency is low. With the rapid development of more electric aircraft, the power supply system needs to be able to provide sufficient power to drive the load. Among the power supply systems commonly used on aircraft, the 28V low-voltage DC power supply is difficult to achieve large-capacity requirements due to its low voltage.

[0003] The Chinese patent with the announcement number CN205829466U discloses a multi-state voltage output circuit for a rescue winch, which uses an RC filter circuit to input a PWM control signal, adds a current detection circuit, and controls the winch speed according to the detection result to reduce the working current and the winch operating current. However, the output circuit also reduces the output power. Reducing the working current by reducing the power will cause the output power of the rescue winch to be insufficient to drive the aircraft load. Utility Model Content

[0004] In view of this, the utility model proposes an aircraft high-voltage rescue electric winch to solve the above problems.

[0005] The technical solution of the utility model is implemented as follows: an aircraft high-voltage rescue electric winch, the electric winch comprises a protection circuit, a power module, an input module, a control module, a drive module, and a control handle;

[0006] The protection circuit is electrically connected to the input module and is used to reduce the operating current;

[0007] The power module is electrically connected to the input module and is used to provide electrical energy;

[0008] The input module is electrically connected to the control module and is used to filter the signal;

[0009] The control module is electrically connected to the driving module and is used to transmit the control signal to the driving module;

[0010] The control handle is electrically connected to the input module and is used to transmit signals to the input module.

[0011] Preferably, the control module includes a first control circuit, a second control circuit, a clock circuit, an SPI circuit, a watchdog monitoring circuit, a JTAG download circuit, a signal conversion circuit, a DSP control circuit, a motor drive control circuit, and a power conversion circuit;

[0012] The watchdog monitoring circuit is electrically connected to the first control circuit and the second control circuit, and is used to monitor circuit failures;

[0013] The clock circuit is electrically connected to the first control circuit and the second control circuit, and is used to obtain a time signal;

[0014] The SPI circuit is electrically connected to the first control circuit and the second control circuit for SPI communication;

[0015] The JTAG download circuit is electrically connected to the first control circuit and the second control circuit, and is used to obtain JTAG information;

[0016] The signal conversion circuit is electrically connected to the first control circuit and the second control circuit, and is used to convert the input digital electrical signal;

[0017] The DSP control circuit is electrically connected to the first control circuit and the second control circuit, and is used to process digital electrical signals;

[0018] The motor drive control circuit is electrically connected to the first control circuit and the second control circuit, and is used to output a motor drive control signal;

[0019] The power conversion circuit is electrically connected to the first control circuit and the second control circuit, and is used for converting power supply voltage.

[0020] Preferably, the first control circuit includes a main control chip U5A-U5G, an FPGA chip JA, resistors R1-R6, R91-R94, capacitors C13-C24, and a capacitor C24-1;

[0021] Pin 60 of the main control chip U5D is electrically connected to one end of the resistor R2, pin 61 of the main control chip U5D is electrically connected to one end of the resistor R1, pin 33 of the main control chip U5E is electrically connected to one end of the resistor R5, pin 34 of the main control chip U5E is electrically connected to one end of the resistor R3, pin 35 of the main control chip U5E is electrically connected to one end of the resistor R6, the other end of the resistor R6 is connected to the digital ground, and pin 36 of the main control chip U5E is electrically connected to One end of resistor R4 is electrically connected, and the other ends of resistors R3, R4, and R5 are connected to DV3.3V voltage. Pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U5F are connected to DV3.3V voltage. Pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U5G are connected to digital ground. Pin 1 of chip JA is electrically connected to one end of resistor R94, the other end of resistor R94 is electrically connected to one end of resistor R6, pins 2 and 10 of FPGA chip JA are connected to digital ground, pin 3 of FPGA chip JA is electrically connected to one end of resistor R93, the other end of resistor R93 is electrically connected to one end of resistor R4, pin 4 of FPGA chip JA is connected to DV3.3V voltage, pin 5 of FPGA chip JA is electrically connected to one end of resistor R92, the other end of resistor R92 is electrically connected to one end of R5, pin 9 of FPGA chip JA is electrically connected to one end of resistor R91, the other end of resistor R91 is electrically connected to one end of resistor R4, one end of capacitor C13-C24 is connected to DV3.3V voltage, the other end of capacitor C13-C24 is connected to digital ground, the positive pole of capacitor C24-1 is connected to DV3.3V voltage, and the negative pole of capacitor C24-1 is connected to digital ground.

[0022] Preferably, the second control circuit includes a main control chip U4A-U4G, an FPGA chip JB, resistors R7-R12, R87-R90, capacitors C1-C12, and capacitor C12-1;

[0023] Pin 60 of the main control chip U4D is electrically connected to one end of the resistor R8, pin R61 of the main control chip U4D is electrically connected to one end of the resistor R7, pin 33 of the main control chip U4E is electrically connected to one end of the resistor R10, pin 34 of the main control chip U4E is electrically connected to one end of the resistor R11, pin 35 of the main control chip U4E is electrically connected to one end of the resistor R12, the other end of the resistor R12 is connected to the digital ground, and pin 10 of the main control chip U4E is electrically connected to one end of the resistor R10. 36 is electrically connected to one end of the resistor R9, the other ends of the resistors R9, R10, and R11 are connected to the DV3.3V voltage, the pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U4F are connected to the DV3.3V voltage, the pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U4G are connected to the digital ground, and F Pin 1 of the PGA chip JB is electrically connected to one end of the resistor R90, and the other end of the resistor R90 is electrically connected to one end of the resistor R12. Pins 2 and 10 of the FPGA chip JB are connected to the digital ground. Pin 3 of the FPGA chip JA is electrically connected to one end of the resistor R89, and the other end of the resistor R89 ​​is electrically connected to one end of the resistor R9. Pin 4 of the FPGA chip JB is connected to the DV3.3V voltage. Pin 5 of the FPGA chip JB is electrically connected to one end of the resistor R88, and the other end of the resistor R88 is electrically connected to one end of R10. Pin 9 of the FPGA chip JB is electrically connected to one end of the resistor R87, and the other end of the resistor R87 is electrically connected to one end of the resistor R11. One end of the capacitor C1-C12 is connected to the DV3.3V voltage, and the other end of the capacitor C1-C12 is connected to the digital ground. The positive pole of the capacitor C12-1 is connected to the DV3.3V voltage, and the negative pole of the capacitor C12-1 is connected to the digital ground.

[0024] Preferably, the watchdog monitoring circuit includes a power control chip U6, resistors R15, R16, JP1, JP3, and a capacitor C26;

[0025] Pin 1 of the power control chip U6 is electrically connected to one end of the resistor R15, and the other end of the resistor R15 is connected to the DV5V voltage. Pins 2-4 of the power control chip U6 are connected to the digital ground. Pin 6 of the power control chip U6 is electrically connected to one end of the resistor R16, one end of the resistor JP1, and one end of the resistor JP3. The other end of the resistor R16 is connected to the DV3.3V voltage. The other end of the resistor JP1 is electrically connected to pin 12 of the main control chip U5A and pin 6 of the main control chip U4A. The other end of the resistor JP3 is electrically connected to the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R7, and the other end of the resistor R8. Pin 8 of the power control chip U6 is connected to one end of the capacitor C26 with the DV5V voltage, and the other end of the resistor C26 is connected to the digital ground.

[0026] Preferably, the JTAG download circuit includes a JTAG control chip TG1 and resistors R17-R19;

[0027] Pin 2 of the JTAG control chip TG1 is electrically connected to one end of the resistor R17, the other end of the resistor R17 is connected to the digital ground, pins 4, 8, 10, and 12 of the JTAG control chip TG1 are connected to the digital ground, pin 5 of the JTAG control chip TG1 is connected to the DV3.3V voltage, pin 13 of the JTAG control chip TG1 is electrically connected to one end of the resistor R18, pin 14 of the JTAG control chip TG1 is electrically connected to one end of the resistor R19, and the other end of the resistor R18 and the other end of the resistor R19 are connected to the DV3.3V voltage.

[0028] Preferably, the clock circuit includes a clock chip Y1, resistors R38, R95, capacitors C98, C99;

[0029] Pin 1 of the clock chip Y1 and one end of the resistor R95 are connected to the DV3.3V voltage, pin 2 of the clock chip Y1 is connected to the digital ground, pin 3 of the clock chip Y1 is electrically connected to one end of the resistor R38, the other end of the resistor R38 is electrically connected to one end of the capacitor C99, pin 18 of the main control chip U4A, and pin 18 of the main control chip U5A, the other end of the capacitor C99 is connected to the digital ground, pin 4 of the clock chip Y1 is electrically connected to the other end of the resistor R95 and one end of the capacitor C98, and the capacitor C98 is connected to the digital ground.

[0030] Preferably, the SPI circuit includes an SPI chip U3, resistors R13, R14, and a capacitor C25;

[0031] Pin 3 of the SPI chip U3 is electrically connected to one end of the resistor R14, the other end of the resistor R14 is connected to the DV3.3V voltage, pin 4 of the SPI chip U3 is connected to the digital ground, pin 7 of the SPI chip U3 is electrically connected to one end of the resistor R13, pin 8 of the SPI chip U3 and the other end of the resistor R13 and one end of the capacitor C25 are connected to the DV3.3V voltage, and the other end of the capacitor C25 is connected to the digital ground.

[0032] Preferably, the motor drive control circuit includes four two-input AND gates U12A-U12C, U13A-U13C, a resistor R29, and capacitors C61 and C62;

[0033] Pin 2 of the four-way two-input AND gate U12A is electrically connected to pin 5 of the four-way two-input AND gate U12B, pin 7 of the four-way two-input AND gate U12A is connected to digital ground, pin 14 of the four-way two-input AND gate U12A and one end of capacitor C61 are connected to DV5V voltage, and the other end of capacitor C61 is connected to digital ground, pin 10 of the four-way two-input AND gate U12C and pin 10 of the four-way two-input AND gate U13C are electrically connected to one end of resistor R29, and the other end of resistor R29 is connected to DV5V voltage, pin 2 of the four-way two-input AND gate U13A is electrically connected to pin 5 of the four-way two-input AND gate U13B, pin 7 of the four-way two-input AND gate U13A is connected to digital ground, pin 14 of the four-way two-input AND gate U13A and one end of capacitor C62 are connected to DV5V voltage, and the other end of capacitor C62 is connected to digital ground.

[0034] Preferably, the power conversion circuit includes a power management chip U41, resistors R82, R83, R84, capacitors C63-C75, and inductors L1-L3;

[0035] Pins 1, 7, 9, 12, 13, and 24 of the power management chip U41 are connected to the digital ground, and pins 2, 3, 10, and 11 of the power management chip U41 and one end of the resistor R82, one end of the resistor R83, one end of the capacitor C70, and one end of the capacitor C69 are connected to the DV5V voltage. The other ends of the capacitors C69 and C70 are connected to the digital ground. Pin 8 of the power management chip U41 is electrically connected to the other end of the resistor R82, and pin 6 of the power management chip U41 is electrically connected to the other end of the resistor R83. The other end of the capacitor C73 is connected to the digital ground. Pins 21-23 of the power management chip U41 and one end of the resistor R84, one end of the capacitor C71, and one end of the capacitor C72 are connected to the DV3.3V voltage. The other end of the capacitor C71 and the other end of the capacitor C72 are connected to the digital ground. Pin 18 of the power management chip U41 is connected to the other end of the resistor R84, the other end of the resistor R1, the other end of the resistor R2, and the other end of the resistor R7. The pins 14-16 of the power management chip U41 and one end of the capacitor C74 and one end of the capacitor C75 are connected to the DV1.9V voltage, the other end of the capacitor C74 and the other end of the capacitor C75 are connected to the digital ground, one end of the inductor L1 is connected to the DV3.3V voltage, the other end of the inductor L1 and one end of the capacitor C63 and one end of the capacitor C64 are connected to the AV3.3V voltage, the other end of the capacitor C63 and the other end of the capacitor C64 are connected to the analog ground, one end of the inductor L2 is connected to the DV1.9V voltage, the other end of the inductor L2 and one end of the capacitor C65 and one end of the capacitor C66 are connected to the AV1.9V voltage, the other end of the capacitor C65 and the other end of the capacitor C66 are connected to the analog ground, one end of the inductor L3 is connected to the +5V voltage, the other end of the inductor L3 and one end of the capacitor C67 and one end of the capacitor C68 are connected to the DC5V voltage, and the other end of the capacitor C67 and the other end of the capacitor C68 are connected to the analog ground.

[0036] The utility model provides an aircraft high-voltage rescue electric winch, which has the following beneficial effects compared with the prior art:

[0037] (1) By integrating the protection circuit, power module, input module, control module, drive module and control handle, the protection circuit reduces the operating current while maintaining sufficient operating power through the control module; (2) By reducing the operating current through the protection circuit, ensuring stable power supply, filtering and processing signals to reduce interference, accurately transmitting control signals and improving operation convenience, the high reliability, safety and precise operation of the equipment can be achieved;

[0038] (3) The main control chip is monitored and reset through the watchdog monitoring circuit. It is powered by 5V and 3.3V power supplies and connected to the main control chips U5A and U4A. It can be reset in time when an abnormality occurs in the system, thereby improving the stability and reliability of the entire control system and effectively preventing abnormalities caused by system freezes or long-term operation;

[0039] (4) Stable control of the motor drive is achieved through the cooperation of the four two-input AND gates U12A-U12C, U13A-U13C of the motor drive control circuit, as well as the resistor R29 and the capacitors C61 and C62. Capacitors C61 and C62 are connected to the DV5V voltage and the digital ground respectively, providing stable power supply decoupling for the AND gate circuit; resistor R29 is connected to the DV5V voltage to ensure the stability of the input signals of the AND gates U12C and U13C; the reasonable connection of each AND gate circuit ensures the reliable transmission of the control signal, thereby improving the reliability and response speed of the motor drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 This is a structural diagram of a high-voltage electric winch for aircraft rescue according to the utility model;

[0042] Figure 2 This is a structural diagram of a control module of an aircraft high-voltage rescue electric winch according to the utility model;

[0043] Figure 3 This is a wiring diagram of a first control circuit of an aircraft high-voltage rescue electric winch according to the utility model;

[0044] Figure 4 This is a wiring diagram of the second control circuit of an aircraft high-voltage rescue electric winch of the utility model;

[0045] Figure 5 This is a wiring diagram of a watchdog monitoring circuit for an aircraft high-voltage rescue electric winch according to the utility model;

[0046] Figure 6 This is a wiring diagram of a JTAG download circuit of an aircraft high voltage rescue electric winch of the utility model;

[0047] Figure 7 This is a wiring diagram of a clock circuit of an aircraft high-voltage rescue electric winch according to the utility model;

[0048] Figure 8 This is a wiring diagram of the SPI circuit of an aircraft high-voltage rescue electric winch of the utility model;

[0049] Fig. 9 This is a wiring diagram of a motor drive control circuit of an aircraft high-voltage rescue electric winch according to the utility model;

[0050] Fig.10 This is a wiring diagram of a power conversion circuit of an aircraft high-voltage rescue electric winch according to the utility model;

[0051] Fig.11 This is a wiring diagram of a signal conversion circuit of an aircraft high-voltage rescue electric winch of the utility model;

[0052] Fig.12 The utility model discloses a wiring diagram of a DSP control circuit of an aircraft high-voltage rescue electric winch. DETAILED DESCRIPTION

[0053] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] Provide an aircraft high voltage rescue electric winch, such as Figure 1 As shown, the electric winch includes a protection circuit 1, a power module 2, an input module 3, a control module 4, a drive module 5, and a control handle 6;

[0055] The protection circuit 1 is electrically connected to the input module 3 to reduce the operating current;

[0056] The power module 2 is electrically connected to the input module 3 to provide electrical energy;

[0057] The input module 3 is electrically connected to the control module 4 and is used to filter the signal;

[0058] The control module 3 is electrically connected to the driving module 5 and is used to transmit the control signal to the driving module 5;

[0059] The control handle 6 is electrically connected to the input module 3 and is used to transmit signals to the input module 3 .

[0060] Specifically, by using the protection circuit 1, the electric winch can prevent overcurrent and overvoltage during operation, reduce the operating current, and thus ensure the safety of the equipment and operators.

[0061] The power module 2 provides stable power to ensure that the electric winch can operate normally under various working conditions, thereby improving the reliability of the equipment.

[0062] The input module 3 performs filtering processing on the signal to reduce noise and interference, ensure the accuracy and stability of the input control signal, and improve the control accuracy of the equipment.

[0063] By connecting the control module 4 and the drive module 5, the input control signal is accurately transmitted to the drive module, thereby increasing the working power, ensuring that the operation of the electric winch meets expectations, and improving the accuracy and response speed of the operation.

[0064] The control handle 6 is electrically connected to the input module 3, allowing the operator to directly input control signals through the handle, thereby simplifying the operation process and improving user experience and operation efficiency.

[0065] By protecting the circuit to reduce the operating current, ensure a stable power supply, filter and process signals to reduce interference, accurately transmit control signals and improve operational convenience, the equipment can achieve high reliability, safety and precise operation.

[0066] like Figure 2 As shown, the control module 4 includes a first control circuit 41, a second control circuit 42, a clock circuit 43, an SPI circuit 44, a watchdog monitoring circuit 45, a JTAG download circuit 46, a signal conversion circuit 47, a DSP control circuit 48, a motor drive control circuit 49, and a power conversion circuit 410;

[0067] The watchdog monitoring circuit 45 is electrically connected to the first control circuit 41 and the second control circuit 42 and is used to monitor circuit failures;

[0068] The clock circuit 43 is electrically connected to the first control circuit 41 and the second control circuit 42, and is used to obtain a time signal;

[0069] The SPI circuit 44 is electrically connected to the first control circuit 41 and the second control circuit 42 for SPI communication;

[0070] The JTAG download circuit 46 is electrically connected to the first control circuit 41 and the second control circuit 42, and is used to obtain JTAG information;

[0071] The signal conversion circuit 47 is electrically connected to the first control circuit 41 and the second control circuit 42, and is used to convert the input digital electrical signal;

[0072] The DSP control circuit 48 is electrically connected to the first control circuit 41 and the second control circuit 42 and is used to process digital electrical signals;

[0073] The motor drive control circuit 49 is electrically connected to the first control circuit 41 and the second control circuit 42, and is used to output a motor drive control signal;

[0074] The power conversion circuit 410 is electrically connected to the first control circuit 41 and the second control circuit 42 for converting power voltage.

[0075] like Figure 3 As shown, the first control circuit 41 includes a main control chip U5A-U5G, an FPGA chip JA, resistors R1-R6, R91-R94, capacitors C13-C24, and a capacitor C24-1;

[0076] Pin 60 of the main control chip U5D is electrically connected to one end of the resistor R2, pin 61 of the main control chip U5D is electrically connected to one end of the resistor R1, pin 33 of the main control chip U5E is electrically connected to one end of the resistor R5, pin 34 of the main control chip U5E is electrically connected to one end of the resistor R3, pin 35 of the main control chip U5E is electrically connected to one end of the resistor R6, the other end of the resistor R6 is connected to the digital ground, and pin 36 of the main control chip U5E is electrically connected to One end of resistor R4 is electrically connected, and the other ends of resistors R3, R4, and R5 are connected to DV3.3V voltage. Pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U5F are connected to DV3.3V voltage. Pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U5G are connected to digital ground. Pin 1 of chip JA is electrically connected to one end of resistor R94, the other end of resistor R94 is electrically connected to one end of resistor R6, pins 2 and 10 of FPGA chip JA are connected to digital ground, pin 3 of FPGA chip JA is electrically connected to one end of resistor R93, the other end of resistor R93 is electrically connected to one end of resistor R4, pin 4 of FPGA chip JA is connected to DV3.3V voltage, pin 5 of FPGA chip JA is electrically connected to one end of resistor R92, the other end of resistor R92 is electrically connected to one end of R5, pin 9 of FPGA chip JA is electrically connected to one end of resistor R91, the other end of resistor R91 is electrically connected to one end of resistor R4, one end of capacitor C13-C24 is connected to DV3.3V voltage, the other end of capacitor C13-C24 is connected to digital ground, the positive pole of capacitor C24-1 is connected to DV3.3V voltage, and the negative pole of capacitor C24-1 is connected to digital ground.

[0077] Specifically, the first control circuit 41 performs voltage stabilization, signal filtering and digital ground connection through the cooperation of the main control chip and the FPGA chip, thereby achieving high-precision signal processing and stability of system operation, ensuring reliable operation of the circuit at a voltage of 3.3V.

[0078] like Figure 4 As shown, the second control circuit 42 includes a main control chip U4A-U4G, an FPGA chip JB, resistors R7-R12, R87-R90, capacitors C1-C12, and a capacitor C12-1;

[0079] Pin 60 of the main control chip U4D is electrically connected to one end of the resistor R8, pin R61 of the main control chip U4D is electrically connected to one end of the resistor R7, pin 33 of the main control chip U4E is electrically connected to one end of the resistor R10, pin 34 of the main control chip U4E is electrically connected to one end of the resistor R11, pin 35 of the main control chip U4E is electrically connected to one end of the resistor R12, the other end of the resistor R12 is connected to the digital ground, and pin 10 of the main control chip U4E is electrically connected to one end of the resistor R10. 36 is electrically connected to one end of the resistor R9, the other ends of the resistors R9, R10, and R11 are connected to the DV3.3V voltage, the pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U4F are connected to the DV3.3V voltage, the pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U4G are connected to the digital ground, and F Pin 1 of the PGA chip JB is electrically connected to one end of the resistor R90, and the other end of the resistor R90 is electrically connected to one end of the resistor R12. Pins 2 and 10 of the FPGA chip JB are connected to the digital ground. Pin 3 of the FPGA chip JA is electrically connected to one end of the resistor R89, and the other end of the resistor R89 ​​is electrically connected to one end of the resistor R9. Pin 4 of the FPGA chip JB is connected to the DV3.3V voltage. Pin 5 of the FPGA chip JB is electrically connected to one end of the resistor R88, and the other end of the resistor R88 is electrically connected to one end of R10. Pin 9 of the FPGA chip JB is electrically connected to one end of the resistor R87, and the other end of the resistor R87 is electrically connected to one end of the resistor R11. One end of the capacitor C1-C12 is connected to the DV3.3V voltage, and the other end of the capacitor C1-C12 is connected to the digital ground. The positive pole of the capacitor C12-1 is connected to the DV3.3V voltage, and the negative pole of the capacitor C12-1 is connected to the digital ground.

[0080] Specifically, the second control circuit 42 achieves voltage stabilization, signal filtering and digital ground connection through the coordinated work of the main control chip and the FPGA chip, thereby improving the accuracy of signal processing and the stability of circuit operation, ensuring the reliable operation of the entire control circuit at a voltage of 3.3V.

[0081] like Figure 5 As shown, the watchdog monitoring circuit 45 includes a power control chip U6, resistors R15, R16, JP1, JP3, and a capacitor C26;

[0082] Pin 1 of the power control chip U6 is electrically connected to one end of the resistor R15, and the other end of the resistor R15 is connected to the DV5V voltage. Pins 2-4 of the power control chip U6 are connected to the digital ground. Pin 6 of the power control chip U6 is electrically connected to one end of the resistor R16, one end of the resistor JP1, and one end of the resistor JP3. The other end of the resistor R16 is connected to the DV3.3V voltage. The other end of the resistor JP1 is electrically connected to pin 12 of the main control chip U5A and pin 6 of the main control chip U4A. The other end of the resistor JP3 is electrically connected to the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R7, and the other end of the resistor R8. Pin 8 of the power control chip U6 is connected to one end of the capacitor C26 with the DV5V voltage, and the other end of the resistor C26 is connected to the digital ground.

[0083] Specifically, the watchdog monitoring circuit 45 realizes the monitoring and resetting functions of the main control chip through the power control chip U6 and related resistor and capacitor components. It is powered by 5V and 3.3V power supplies and connected to the main control chips U5A and U4A, and can be reset in time when the system is abnormal, thereby improving the stability and reliability of the entire control system and effectively preventing abnormal situations caused by system crashes or long-term operation.

[0084] like Figure 6 As shown, the JTAG download circuit 46 includes a JTAG control chip TG1 and resistors R17-R19;

[0085] Pin 2 of the JTAG control chip TG1 is electrically connected to one end of the resistor R17, the other end of the resistor R17 is connected to the digital ground, pins 4, 8, 10, and 12 of the JTAG control chip TG1 are connected to the digital ground, pin 5 of the JTAG control chip TG1 is connected to the DV3.3V voltage, pin 13 of the JTAG control chip TG1 is electrically connected to one end of the resistor R18, pin 14 of the JTAG control chip TG1 is electrically connected to one end of the resistor R19, and the other end of the resistor R18 and the other end of the resistor R19 are connected to the DV3.3V voltage.

[0086] Specifically, the JTAG download circuit 46 realizes stable and reliable JTAG programming of the chip through the JTAG control chip TG1 combined with resistors R17, R18 and R19, wherein R17 is used for stable electrical grounding, and R18 and R19 are respectively connected to the DV3.3V voltage to ensure the correct voltage level and improve the integrity and accuracy of the programming signal.

[0087] like Figure 7 As shown, the clock circuit 43 includes a clock chip Y1, resistors R38, R95, and capacitors C98, C99;

[0088] Pin 1 of the clock chip Y1 and one end of the resistor R95 are connected to the DV3.3V voltage, pin 2 of the clock chip Y1 is connected to the digital ground, pin 3 of the clock chip Y1 is electrically connected to one end of the resistor R38, the other end of the resistor R38 is electrically connected to one end of the capacitor C99, pin 18 of the main control chip U4A, and pin 18 of the main control chip U5A, the other end of the capacitor C99 is connected to the digital ground, pin 4 of the clock chip Y1 is electrically connected to the other end of the resistor R95 and one end of the capacitor C98, and the capacitor C98 is connected to the digital ground.

[0089] Specifically, the clock circuit 43 uses the clock chip Y1, resistors R38 and R95, and capacitors C98 and C99 to achieve stable output of the clock signal. The resistor R95 is connected to the DV3.3V voltage to provide a stable power supply voltage for the clock chip; the resistor R38 cooperates with the capacitor C99 to transmit the clock signal generated by the clock chip Y1 to the main control chips U4A and U5A; the capacitors C98 and C99 are used to filter and stabilize the clock signal to ensure reliable signal grounding, thereby ensuring the accuracy and stability of the system clock signal.

[0090] like Figure 8 As shown, the SPI circuit 44 includes a SPI chip U3, resistors R13, R14, and a capacitor C25;

[0091] Pin 3 of the SPI chip U3 is electrically connected to one end of the resistor R14, the other end of the resistor R14 is connected to the DV3.3V voltage, pin 4 of the SPI chip U3 is connected to the digital ground, pin 7 of the SPI chip U3 is electrically connected to one end of the resistor R13, pin 8 of the SPI chip U3 and the other end of the resistor R13 and one end of the capacitor C25 are connected to the DV3.3V voltage, and the other end of the capacitor C25 is connected to the digital ground.

[0092] Specifically, the SPI circuit 44 uses the SPI chip U3 in combination with resistors R13, R14 and capacitor C25 to achieve a stable SPI communication function. Resistor R14 is connected to the DV3.3V voltage to provide the necessary power supply voltage to the chip; resistor R13 cooperates with capacitor C25 to stabilize the voltage of pins 7 and 8, thereby maintaining the integrity and stability of the communication signal; capacitor C25 plays a filtering role, ensuring reliable grounding, providing a stable working environment for SPI communication, and improving the reliability and performance of the overall circuit.

[0093] like Fig. 9 As shown, the motor drive control circuit 49 includes four two-input AND gates U12A-U12C, U13A-U13C, a resistor R29, and capacitors C61 and C62;

[0094] Pin 2 of the four-way two-input AND gate U12A is electrically connected to pin 5 of the four-way two-input AND gate U12B, pin 7 of the four-way two-input AND gate U12A is connected to digital ground, pin 14 of the four-way two-input AND gate U12A and one end of capacitor C61 are connected to DV5V voltage, and the other end of capacitor C61 is connected to digital ground, pin 10 of the four-way two-input AND gate U12C and pin 10 of the four-way two-input AND gate U13C are electrically connected to one end of resistor R29, and the other end of resistor R29 is connected to DV5V voltage, pin 2 of the four-way two-input AND gate U13A is electrically connected to pin 5 of the four-way two-input AND gate U13B, pin 7 of the four-way two-input AND gate U13A is connected to digital ground, pin 14 of the four-way two-input AND gate U13A and one end of capacitor C62 are connected to DV5V voltage, and the other end of capacitor C62 is connected to digital ground.

[0095] Specifically, the motor drive control circuit 49 realizes stable control of the motor drive through the cooperation of four two-input AND gates U12A-U12C, U13A-U13C, as well as resistor R29 and capacitors C61 and C62. Capacitors C61 and C62 are respectively connected to the DV5V voltage and the digital ground, providing a stable power supply decoupling effect for the AND gate circuit; resistor R29 is connected to the DV5V voltage to ensure the stability of the input signals of the AND gates U12C and U13C; the reasonable connection of each AND gate circuit ensures the reliable transmission of the control signal, thereby improving the reliability and response speed of the motor drive system.

[0096] like Fig.10 As shown, the power conversion circuit 410 includes a power management chip U41, resistors R82, R83, R84, capacitors C63-C75, and inductors L1-L3;

[0097] Pins 1, 7, 9, 12, 13, and 24 of the power management chip U41 are connected to the digital ground, and pins 2, 3, 10, and 11 of the power management chip U41 and one end of the resistor R82, one end of the resistor R83, one end of the capacitor C70, and one end of the capacitor C69 are connected to the DV5V voltage. The other ends of the capacitors C69 and C70 are connected to the digital ground. Pin 8 of the power management chip U41 is electrically connected to the other end of the resistor R82, and pin 6 of the power management chip U41 is electrically connected to the other end of the resistor R83. The other end of the capacitor C73 is connected to the digital ground. Pins 21-23 of the power management chip U41 and one end of the resistor R84, one end of the capacitor C71, and one end of the capacitor C72 are connected to the DV3.3V voltage. The other end of the capacitor C71 and the other end of the capacitor C72 are connected to the digital ground. Pin 18 of the power management chip U41 is connected to the other end of the resistor R84, the other end of the resistor R1, the other end of the resistor R2, and the other end of the resistor R7. The pins 14-16 of the power management chip U41 and one end of the capacitor C74 and one end of the capacitor C75 are connected to the DV1.9V voltage, the other end of the capacitor C74 and the other end of the capacitor C75 are connected to the digital ground, one end of the inductor L1 is connected to the DV3.3V voltage, the other end of the inductor L1 and one end of the capacitor C63 and one end of the capacitor C64 are connected to the AV3.3V voltage, the other end of the capacitor C63 and the other end of the capacitor C64 are connected to the analog ground, one end of the inductor L2 is connected to the DV1.9V voltage, the other end of the inductor L2 and one end of the capacitor C65 and one end of the capacitor C66 are connected to the AV1.9V voltage, the other end of the capacitor C65 and the other end of the capacitor C66 are connected to the analog ground, one end of the inductor L3 is connected to the +5V voltage, the other end of the inductor L3 and one end of the capacitor C67 and one end of the capacitor C68 are connected to the DC5V voltage, and the other end of the capacitor C67 and the other end of the capacitor C68 are connected to the analog ground.

[0098] Specifically, the power conversion circuit 410 realizes multi-channel voltage conversion and stable power supply through the precise design of the power management chip U41, resistors R82, R83, R84, capacitors C63-C75 and inductors L1-L3. Capacitors C69 and C70 are connected to the DV5V voltage to provide voltage stabilization and filtering functions, while R82 and R83 ensure the input voltage stability of the power management chip; C71 and C72 are connected to the DV3.3V voltage to improve voltage stability; C74 and C75 are connected to the DV1.9V voltage to provide decoupling function; inductors L1, L2, L3 are used for filtering and energy storage of different voltages respectively, and the combination with C63-C68 further filters the power supply noise, ensuring the purity and stability of the output voltage, thereby enhancing the reliability and efficiency of the overall power system.

[0099] Specifically, in this embodiment, the specific structure of the signal conversion circuit 47 is as follows: Fig.11As shown, the specific structure of the DSP control circuit 48 is as follows Fig.12 shown.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aircraft high voltage rescue electric winch, characterized in that: The electric winch comprises a protection circuit (1), a power module (2), an input module (3), a control module (4), a drive module (5), and a control handle (6); The protection circuit (1) is electrically connected to the input module (3) and is used to reduce the operating current; The power module (2) is electrically connected to the input module (3) and is used to provide electrical energy; The input module (3) is electrically connected to the control module (4) and is used to filter the signal; The control module (4) is electrically connected to the drive module (5) and is used to transmit the control signal to the drive module (5); The control handle (6) is electrically connected to the input module (3) and is used to transmit signals to the input module (3).

2. The aircraft high voltage rescue electric winch according to claim 1, characterized in that: The control module (4) comprises a first control circuit (41), a second control circuit (42), a clock circuit (43), an SPI circuit (44), a watchdog monitoring circuit (45), a JTAG download circuit (46), a signal conversion circuit (47), a DSP control circuit (48), a motor drive control circuit (49), and a power conversion circuit (410); The watchdog monitoring circuit (45) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to monitor circuit failures; The clock circuit (43) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to obtain a time signal; The SPI circuit (44) is electrically connected to the first control circuit (41) and the second control circuit (42) for SPI communication; The JTAG download circuit (46) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to obtain JTAG information; The signal conversion circuit (47) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to convert input digital electrical signals; The DSP control circuit (48) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to process digital electrical signals; The motor drive control circuit (49) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to output a motor drive control signal; The power conversion circuit (410) is electrically connected to the first control circuit (41) and the second control circuit (42) and is used to convert power supply voltage.

3. The aircraft high voltage rescue electric winch according to claim 2, characterized in that: The first control circuit (41) comprises a main control chip U5A-U5G, an FPGA chip JA, resistors R1-R6, R91-R94, capacitors C13-C24, and a capacitor C24-1; Pin 60 of the main control chip U5D is electrically connected to one end of the resistor R2, pin 61 of the main control chip U5D is electrically connected to one end of the resistor R1, pin 33 of the main control chip U5E is electrically connected to one end of the resistor R5, pin 34 of the main control chip U5E is electrically connected to one end of the resistor R3, pin 35 of the main control chip U5E is electrically connected to one end of the resistor R6, the other end of the resistor R6 is connected to the digital ground, and pin 36 of the main control chip U5E is electrically connected to One end of resistor R4 is electrically connected, and the other ends of resistors R3, R4, and R5 are connected to DV3.3V voltage. Pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U5F are connected to DV3.3V voltage. Pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U5G are connected to digital ground. Pin 1 of chip JA is electrically connected to one end of resistor R94, the other end of resistor R94 is electrically connected to one end of resistor R6, pins 2 and 10 of FPGA chip JA are connected to digital ground, pin 3 of FPGA chip JA is electrically connected to one end of resistor R93, the other end of resistor R93 is electrically connected to one end of resistor R4, pin 4 of FPGA chip JA is connected to DV3.3V voltage, pin 5 of FPGA chip JA is electrically connected to one end of resistor R92, the other end of resistor R92 is electrically connected to one end of R5, pin 9 of FPGA chip JA is electrically connected to one end of resistor R91, the other end of resistor R91 is electrically connected to one end of resistor R4, one end of capacitor C13-C24 is connected to DV3.3V voltage, the other end of capacitor C13-C24 is connected to digital ground, the positive pole of capacitor C24-1 is connected to DV3.3V voltage, and the negative pole of capacitor C24-1 is connected to digital ground.

4. The aircraft high voltage rescue electric winch according to claim 3, characterized in that: The second control circuit (42) comprises a main control chip U4A-U4G, an FPGA chip JB, resistors R7-R12, R87-R90, capacitors C1-C12, and a capacitor C12-1; Pin 60 of the main control chip U4D is electrically connected to one end of the resistor R8, pin R61 of the main control chip U4D is electrically connected to one end of the resistor R7, pin 33 of the main control chip U4E is electrically connected to one end of the resistor R10, pin 34 of the main control chip U4E is electrically connected to one end of the resistor R11, pin 35 of the main control chip U4E is electrically connected to one end of the resistor R12, the other end of the resistor R12 is connected to the digital ground, and pin 10 of the main control chip U4E is electrically connected to one end of the resistor R10. 36 is electrically connected to one end of the resistor R9, the other ends of the resistors R9, R10, and R11 are connected to the DV3.3V voltage, the pins 9, 19, 25, 46, 56, 64, 82, 90, 100, 116, 126, and 136 of the main control chip U4F are connected to the DV3.3V voltage, the pins 10, 17, 26, 47, 54, 65, 83, 92, 99, 115, 128, and 135 of the main control chip U4G are connected to the digital ground, and F Pin 1 of the PGA chip JB is electrically connected to one end of the resistor R90, and the other end of the resistor R90 is electrically connected to one end of the resistor R12. Pins 2 and 10 of the FPGA chip JB are connected to the digital ground. Pin 3 of the FPGA chip JA is electrically connected to one end of the resistor R89, and the other end of the resistor R89 ​​is electrically connected to one end of the resistor R9. Pin 4 of the FPGA chip JB is connected to the DV3.3V voltage. Pin 5 of the FPGA chip JB is electrically connected to one end of the resistor R88, and the other end of the resistor R88 is electrically connected to one end of R10. Pin 9 of the FPGA chip JB is electrically connected to one end of the resistor R87, and the other end of the resistor R87 is electrically connected to one end of the resistor R11. One end of the capacitor C1-C12 is connected to the DV3.3V voltage, and the other end of the capacitor C1-C12 is connected to the digital ground. The positive pole of the capacitor C12-1 is connected to the DV3.3V voltage, and the negative pole of the capacitor C12-1 is connected to the digital ground.

5. The aircraft high voltage rescue electric winch according to claim 4, characterized in that: The watchdog monitoring circuit (45) comprises a power control chip U6, resistors R15, R16, JP1, JP3, and a capacitor C26; Pin 1 of the power control chip U6 is electrically connected to one end of the resistor R15, and the other end of the resistor R15 is connected to the DV5V voltage. Pins 2-4 of the power control chip U6 are connected to the digital ground. Pin 6 of the power control chip U6 is electrically connected to one end of the resistor R16, one end of the resistor JP1, and one end of the resistor JP3. The other end of the resistor R16 is connected to the DV3.3V voltage. The other end of the resistor JP1 is electrically connected to pin 12 of the main control chip U5A and pin 6 of the main control chip U4A. The other end of the resistor JP3 is electrically connected to the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R7, and the other end of the resistor R8. Pin 8 of the power control chip U6 is connected to one end of the capacitor C26 with the DV5V voltage, and the other end of the resistor C26 is connected to the digital ground.

6. The aircraft high voltage rescue electric winch according to claim 5, characterized in that: The JTAG download circuit (46) comprises a JTAG control chip TG1 and resistors R17-R19; Pin 2 of the JTAG control chip TG1 is electrically connected to one end of the resistor R17, the other end of the resistor R17 is connected to the digital ground, pins 4, 8, 10, and 12 of the JTAG control chip TG1 are connected to the digital ground, pin 5 of the JTAG control chip TG1 is connected to the DV3.3V voltage, pin 13 of the JTAG control chip TG1 is electrically connected to one end of the resistor R18, pin 14 of the JTAG control chip TG1 is electrically connected to one end of the resistor R19, and the other end of the resistor R18 and the other end of the resistor R19 are connected to the DV3.3V voltage.

7. An aircraft high voltage rescue electric winch as claimed in claim 6, characterized in that: The clock circuit (43) comprises a clock chip Y1, resistors R38, R95, capacitors C98, C99; Pin 1 of the clock chip Y1 and one end of the resistor R95 are connected to the DV3.3V voltage, pin 2 of the clock chip Y1 is connected to the digital ground, pin 3 of the clock chip Y1 is electrically connected to one end of the resistor R38, the other end of the resistor R38 is electrically connected to one end of the capacitor C99, pin 18 of the main control chip U4A, and pin 18 of the main control chip U5A, the other end of the capacitor C99 is connected to the digital ground, pin 4 of the clock chip Y1 is electrically connected to the other end of the resistor R95 and one end of the capacitor C98, and the capacitor C98 is connected to the digital ground.

8. The aircraft high voltage rescue electric winch according to claim 7, characterized in that: The SPI circuit (44) comprises a SPI chip U3, resistors R13, R14, and a capacitor C25; Pin 3 of the SPI chip U3 is electrically connected to one end of the resistor R14, the other end of the resistor R14 is connected to the DV3.3V voltage, pin 4 of the SPI chip U3 is connected to the digital ground, pin 7 of the SPI chip U3 is electrically connected to one end of the resistor R13, pin 8 of the SPI chip U3 and the other end of the resistor R13 and one end of the capacitor C25 are connected to the DV3.3V voltage, and the other end of the capacitor C25 is connected to the digital ground.

9. The aircraft high voltage rescue electric winch according to claim 8, characterized in that: The motor drive control circuit (49) comprises four two-input AND gates U12A-U12C, U13A-U13C, a resistor R29, and capacitors C61 and C62; Pin 2 of the four-way two-input AND gate U12A is electrically connected to pin 5 of the four-way two-input AND gate U12B, pin 7 of the four-way two-input AND gate U12A is connected to digital ground, pin 14 of the four-way two-input AND gate U12A and one end of capacitor C61 are connected to DV5V voltage, and the other end of capacitor C61 is connected to digital ground, pin 10 of the four-way two-input AND gate U12C and pin 10 of the four-way two-input AND gate U13C are electrically connected to one end of resistor R29, and the other end of resistor R29 is connected to DV5V voltage, pin 2 of the four-way two-input AND gate U13A is electrically connected to pin 5 of the four-way two-input AND gate U13B, pin 7 of the four-way two-input AND gate U13A is connected to digital ground, pin 14 of the four-way two-input AND gate U13A and one end of capacitor C62 are connected to DV5V voltage, and the other end of capacitor C62 is connected to digital ground.

10. The aircraft high voltage rescue electric winch according to claim 9, characterized in that: The power conversion circuit (410) comprises a power management chip U41, resistors R82, R83, R84, capacitors C63-C75, and inductors L1-L3; Pins 1, 7, 9, 12, 13, and 24 of the power management chip U41 are connected to the digital ground, and pins 2, 3, 10, and 11 of the power management chip U41 and one end of the resistor R82, one end of the resistor R83, one end of the capacitor C70, and one end of the capacitor C69 are connected to the DV5V voltage. The other ends of the capacitors C69 and C70 are connected to the digital ground. Pin 8 of the power management chip U41 is electrically connected to the other end of the resistor R82, and pin 6 of the power management chip U41 is electrically connected to the other end of the resistor R83. The other end of the capacitor C73 is connected to the digital ground. Pins 21-23 of the power management chip U41 and one end of the resistor R84, one end of the capacitor C71, and one end of the capacitor C72 are connected to the DV3.3V voltage. The other end of the capacitor C71 and the other end of the capacitor C72 are connected to the digital ground. Pin 18 of the power management chip U41 is connected to the other end of the resistor R84, the other end of the resistor R1, the other end of the resistor R2, and the other end of the resistor R7. The pins 14-16 of the power management chip U41 and one end of the capacitor C74 and one end of the capacitor C75 are connected to the DV1.9V voltage, the other end of the capacitor C74 and the other end of the capacitor C75 are connected to the digital ground, one end of the inductor L1 is connected to the DV3.3V voltage, the other end of the inductor L1 and one end of the capacitor C63 and one end of the capacitor C64 are connected to the AV3.3V voltage, the other end of the capacitor C63 and the other end of the capacitor C64 are connected to the analog ground, one end of the inductor L2 is connected to the DV1.9V voltage, the other end of the inductor L2 and one end of the capacitor C65 and one end of the capacitor C66 are connected to the AV1.9V voltage, the other end of the capacitor C65 and the other end of the capacitor C66 are connected to the analog ground, one end of the inductor L3 is connected to the +5V voltage, the other end of the inductor L3 and one end of the capacitor C67 and one end of the capacitor C68 are connected to the DC5V voltage, and the other end of the capacitor C67 and the other end of the capacitor C68 are connected to the analog ground.

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