WO2020211274A1 - Moteur bldc - Google Patents

Moteur bldc Download PDF

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Publication number
WO2020211274A1
WO2020211274A1 PCT/CN2019/105384 CN2019105384W WO2020211274A1 WO 2020211274 A1 WO2020211274 A1 WO 2020211274A1 CN 2019105384 W CN2019105384 W CN 2019105384W WO 2020211274 A1 WO2020211274 A1 WO 2020211274A1
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WO
WIPO (PCT)
Prior art keywords
port
circuit board
signal
circuit
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/105384
Other languages
English (en)
Chinese (zh)
Inventor
张先胜
赵勇
边文清
王兴梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Broad Ocean Motor Co Ltd
Original Assignee
Zhongshan Broad Ocean Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201920504277.6U external-priority patent/CN209676083U/zh
Priority claimed from CN201920535483.3U external-priority patent/CN209545476U/zh
Priority claimed from CN201920559398.0U external-priority patent/CN209545478U/zh
Application filed by Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Publication of WO2020211274A1 publication Critical patent/WO2020211274A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits

Definitions

  • the utility model relates to a BLDC motor.
  • the general brushless DC motor includes the motor entity and the motor controller.
  • the motor entity includes the stator, rotor part and the motor housing of the motor.
  • the motor controller also needs to be matched with the motor
  • the traditional approach is to develop a motor and motor controller for each user-side control system.
  • motor controllers that dock with the daughter and mother circuit boards.
  • the main functional circuits of the motor controller are set on the mother circuit board, and various interface unit circuits and identification circuits are set on multiple daughter boards.
  • On the circuit board one of the daughter circuit boards is used to connect with the mother circuit board.
  • the identification circuit on the daughter circuit board informs the mother microprocessor on the mother circuit board, and the mother microprocessor automatically configures the I/ on the daughter circuit board.
  • O port type which can be used in different occasions by replacing different sub-circuit boards. It has a wide range of applications. Motor manufacturers reduce the types of motors for easy management, which can reduce motor R&D investment, shorten R&D cycles, reduce product costs, and simplify production Process, improve efficiency.
  • the motor controller includes a motherboard microprocessor, an interface circuit unit and an identification circuit.
  • the motherboard microprocessor is set on the motherboard, and the interface circuit unit,
  • the identification circuit is set on the daughter circuit board, and forms an electrical connection through the docking of the daughter circuit board and the mother circuit board.
  • the identification circuit inputs the identification signal to the motherboard microprocessor, and the motherboard microprocessor automatically configures the interface circuit unit according to the identification signal.
  • the type of each I/o port Different types of interface circuit units matching identification circuits output different signals to form multiple different sub-circuit boards.
  • the output end of the motherboard microprocessor is connected to the power drive circuit module, the output end of the rotor position detection circuit is connected to the input end of the motherboard microprocessor, and the power drive circuit module and the rotor position detection circuit are both arranged on the mother circuit board.
  • the power supply circuit and the analog quantity detection circuit are also arranged on the mother circuit board.
  • the power circuit supplies power for each part of the circuit.
  • the said motherboard microprocessor is a CPU or a single-chip MCU or a digital signal processor DSP.
  • the mother circuit board is provided with a plug-in port 3a, and 11-way lugs are provided in the plug-in port 3a.
  • the 11 lugs on the plug-in port 3a are E, N, L, M1, M2, M3, M4, M5, M6, M7, M8. Each lug can be defined according to the following standards.
  • the three E, N, and L channels are Power input, M1, M2, M3, M4, M5, M6, M7, M8 are the interface signals input by the client control system to the sub-circuit board.
  • a slot 1a is provided on the mother circuit board, and a plug connector 2a is provided on the sub circuit board. The plug connector 2a is nested in the slot 1a to electrically connect the sub circuit board and the mother circuit board.
  • the purpose of the utility model is to provide a BLDC motor, which adopts new electrical specifications, has a relatively simple circuit structure, is convenient to match the signal with the client control system, and forms a relatively common standard, reduces production costs, and avoids sub-circuit board Too many forms are too widespread, easy to manage and promote applications.
  • a BLDC motor includes a motor controller and a motor body.
  • the motor body includes a stator assembly, a rotor assembly and a motor housing.
  • the motor controller includes a mother circuit board and a daughter circuit board.
  • the mother circuit board includes a mother microprocessor, an inverter circuit,
  • the power supply circuit and the detection circuit are characterized in that the sub-circuit board includes a number of unit circuits integrated on the sub-circuit board, and the sub-circuit board is used to plug into the mother circuit board of the motor controller to match the interface signal of the user terminal control system.
  • the several unit circuits mentioned above include the first signal conversion circuit, the second signal conversion circuit, the third signal conversion circuit, the fourth signal conversion circuit and the half-duplex two-way serial communication circuit, the sub-circuit board and the user terminal control system
  • Several ports are set for connection, and the ports are as follows:
  • the PWM port is used for PWM signal input.
  • the PWM signal is converted by the first signal conversion circuit set on the sub-circuit board and then input to the mother circuit board;
  • G port enable switch signal input port, the port signal is converted by the second signal conversion circuit set on the sub-circuit board and then input to the mother circuit board;
  • SW port operating mode switching signal input port, the port signal is converted by the third signal conversion circuit set on the sub-circuit board and then input to the mother circuit board;
  • FG port, speed feedback signal output port, the signal of this port is connected with the fourth signal conversion circuit set on the sub-circuit board, the mother circuit board converts the rotation speed signal of the motor operation through the fourth signal conversion circuit and then outputs it from the FG port;
  • J1 port, jumper port, PWM signal input port is electrically connected to J1 port through a printed circuit on the sub-circuit board, when J1 port is connected to SW port through an external jumper switch K for operating mode switching;
  • R/T port serial communication port, this port is connected with the half-duplex bidirectional serial communication circuit set on the sub-circuit board, and is used to transmit data between the mother circuit board of the motor controller and the user-side control system;
  • GND2 port this port is the common grounding terminal provided by the user-side control system for the sub-circuit board;
  • V port power input port, this port is used by the user-side control system to provide DC power for the sub-circuit board, and the power input from the V port provides power for the half-duplex bidirectional serial communication circuit.
  • the first signal conversion circuit, the second signal conversion circuit, the third signal conversion circuit, and the fourth signal conversion circuit described above are all photoelectric coupling circuits, and the several unit circuits also include identification circuits, which output identification signals BSEL to the mother circuit board so that the mother circuit board can identify the type of the daughter circuit board.
  • the specifications of the PWM speed control signal input from the PWM port mentioned above are: the voltage range is 12V-24V DC, the frequency range is 80Hz-120Hz, and the G port input signal specifications: the voltage is 24V AC, and the frequency range is 50Hz-60Hz.
  • the above-mentioned mother circuit board provides +3.3V DC input power and ground terminal GND1 for the daughter circuit board, the power input of the V port is +15V DC input power, and the enable switch signal input port of the G port is in fan mode Start signal port, SW port is used to switch between constant torque operation mode and constant air volume operation mode, or switch between constant torque operation mode and constant speed operation mode.
  • the several ports mentioned above include 5 gear signal input ports, PWM port, GND2 port and R/T port.
  • the 5 gear signal input ports are M1 port, M2 port, M3 port, M4 port and M5 port. ,among them:
  • the input signals of the M1 port and the M2 port are converted by the first signal conversion circuit provided on the sub-circuit board and then combined into one signal and input to the mother circuit board;
  • the input signals of the M3 port and the M4 port are converted by the second signal conversion circuit provided on the sub-circuit board and combined into one signal input and input to the mother circuit board;
  • the input signals of the M5 port and the PWM port are converted by the third signal conversion circuit provided on the sub-circuit board and then combined into one signal and input to the mother circuit board; among them, the PWM port is used for PWM signal input;
  • R/T port serial communication port, this port is connected with the half-duplex bidirectional serial communication circuit set on the sub-circuit board, and is used to transmit data between the mother circuit board of the motor controller and the user-side control system;
  • GND2 port this port is the common grounding terminal provided by the user-side control system for the sub-circuit board.
  • the above-mentioned first signal conversion circuit is a photoelectric coupling circuit
  • the M1 port is connected to the input terminal of the first signal conversion circuit
  • the M2 port is connected to the input terminal of the first signal conversion circuit after the signal frequency is reduced by half through half-wave rectification processing
  • the second signal conversion circuit is a photoelectric coupling circuit
  • the M3 port is connected to the input end of the second signal conversion circuit
  • the M4 port is half-wave rectified to reduce the signal frequency by half and then connected to the input end of the second signal conversion circuit .
  • the above-mentioned third signal conversion circuit is a photoelectric coupling circuit
  • the M5 port is connected to the input end of the third signal conversion circuit
  • the PWM port is connected to the input end of the third signal conversion circuit after the signal frequency is reduced by half through half-wave rectification.
  • M1 port or M2 port or M3 port or M4 port or M5 port input gear signal specifications meet the following conditions: voltage 24VAC, input voltage frequency range: 50Hz-60Hz.
  • the above-mentioned voltage range 12VDC-24VDC
  • the frequency range of the input voltage is 80Hz-120Hz
  • several unit circuits also include power conversion circuits, M1 port or M2 port or M3 port or M4 port or M5 port is connected to one of the ports
  • the output terminal Vcc of the power conversion circuit provides power supply for the half-duplex bidirectional serial communication circuit.
  • the above-mentioned mother circuit board provides +3.3V DC input power and ground terminal GND1 for the daughter circuit board.
  • Several unit circuits also include identification circuits, which provide identification signals for identifying the type of the daughter circuit boards to the mother circuit board. BSEL.
  • the several unit circuits mentioned above include a power conversion circuit, a PWM signal processing circuit, a VSP signal processing circuit, a daughter board microprocessor, a serial communication circuit and a PWM signal generating circuit, among which:
  • the bus circuit board of the motor controller provides DC input power for the power conversion circuit, and the power conversion circuit outputs two DC power sources and supplies power to the user-side control system;
  • the user-side control system inputs the PWM speed control signal to the interface sub-circuit board, and the PWM speed control signal is processed by the PWM signal processing circuit and then outputs the PWM signal for input to the mother circuit board;
  • the user-side control system inputs the analog voltage speed control signal VSP to the sub-circuit board.
  • the analog voltage speed control signal VSP is processed by the VSP signal processing circuit and input to the daughter board microprocessor.
  • the daughter board microprocessor drives the PWM signal generated by the PWM signal generating circuit. Input to the mother circuit board;
  • the user end control system uses the serial communication circuit to communicate and exchange data with the mother circuit board.
  • the above-mentioned daughter board microprocessor drives the PWM signal and PWM speed control signal generated by the PWM signal generating circuit to be processed by the PWM signal processing circuit, and then the output PWM signal is input to the mother circuit board through the same line.
  • the above-mentioned power conversion circuit outputs +12V and +3.3V two DC power supplies and supplies power to the user-side control system.
  • the user-side control system inputs the PWM speed control signal to the sub-circuit board.
  • the specification is: the voltage range is 12V-24VDC, The frequency range is 80Hz-120Hz, and the user-side control system inputs the analog voltage speed control signal VSP specification to the sub-circuit board: the voltage range is 0V-12V DC.
  • the above-mentioned sub-circuit board is connected to the user-side control system and at least 6 useful ports are provided.
  • the 6 useful ports on the sub-circuit board are:
  • the sub-circuit board provides 12VDC power to the user-side control system
  • the user-side control system inputs PWM speed control signal to the sub-circuit board;
  • GNDISO input port the signal common ground provided by the user-side control system to the sub-circuit board
  • the user terminal control system inputs the analog voltage speed control signal VSP to the sub-circuit board;
  • the sub-circuit board provides 3.3VDC power to the user-side control system
  • R/T half-duplex serial communication port sub-circuit board and user-side control system for mutual data exchange.
  • a power input port V is also provided on the above-mentioned sub-circuit board.
  • the client control system uses the power input port V to provide power for the serial communication circuit.
  • Several unit circuits also include an identification circuit, which is connected to the mother circuit board. Provide the identification signal BSEL, the serial communication ports TXD and RXD are set on the daughter circuit board and the mother circuit board, and the mother circuit board provides +15V and +5V DC input power for the power conversion circuit and provides the grounding port GND.
  • the sub-circuit board of the present utility model is connected with the user-side control system to set a number of ports to adopt relatively simple electrical specifications, simplify the circuit structure, reduce manufacturing costs, and facilitate signal matching with the client-side control system to form a more universal Standards, to avoid too many forms of sub-circuit boards, easy to manage and promote applications.
  • Figure 1 is a wiring diagram of the traditional motor controller and the user-side control system
  • Figure 2 is a schematic block diagram of a traditional motor controller
  • Figure 3 is a schematic diagram of the principle of a traditional motor controller using a daughter-in-circuit board
  • Figure 4 is a schematic diagram of the appearance of a mother circuit board of a traditional motor controller
  • Figure 5 is a schematic diagram of the appearance of a sub-circuit board of a conventional motor controller
  • Figure 6 is a circuit block diagram of the sub-circuit board of the first embodiment of the present invention.
  • Figure 7 is a partial circuit diagram corresponding to Figure 6;
  • FIG. 8 is another part of the circuit diagram corresponding to FIG. 6;
  • Fig. 9 is a block diagram of the motor controller of the first embodiment of the present invention.
  • Figure 10 is a circuit block diagram of a sub-circuit board of the second embodiment of the present invention.
  • FIG. 11 is a partial circuit diagram of the first part corresponding to FIG. 10;
  • FIG. 12 is a partial circuit diagram of the second part corresponding to FIG. 10;
  • FIG. 13 is a partial circuit diagram of the third part corresponding to FIG. 10;
  • Figure 14 is a circuit block diagram of a sub-circuit board of the third embodiment of the present invention.
  • Fig. 15 is a partial circuit diagram corresponding to Fig. 14;
  • Fig. 16 is a partial circuit diagram corresponding to Fig. 14;
  • Fig. 17 is a partial circuit diagram corresponding to Fig. 14.
  • a BLDC motor includes a motor controller and a motor body.
  • the motor body includes a stator assembly, a rotor assembly and a motor housing.
  • the motor controller includes a mother circuit board and a daughter circuit board.
  • the mother circuit board includes a mother microprocessor, an inverter circuit, a power supply circuit and a detection circuit, and is characterized in that: the daughter circuit board includes several unit circuits integrated on the daughter circuit board, and the daughter circuit board is used to plug in The mother circuit board of the motor controller matches the interface signal of the user end control system.
  • the several unit circuits include a first signal conversion circuit 1, a second signal conversion circuit 2, a third signal conversion circuit 3, and a fourth signal conversion circuit 4 and the half-duplex two-way serial communication circuit 5, characterized in that: the sub-circuit board is connected with the user-side control system to set up several ports, and the several ports are:
  • the PWM port is used for PWM signal input.
  • the PWM signal is converted by the first signal conversion circuit 1 provided on the sub-circuit board and then input to the mother circuit board;
  • G port enable switch signal input port, the port signal is converted by the second signal conversion circuit 2 provided on the sub-circuit board and then input to the mother circuit board;
  • SW port operating mode switching signal input port, the signal of this port is converted by the third signal conversion circuit 3 provided on the sub-circuit board and then input to the mother circuit board;
  • the FG port speed feedback signal output port.
  • the signal of this port is connected to the fourth signal conversion circuit 4 set on the sub-circuit board.
  • the mother circuit board converts the rotation speed signal of the motor operation through the fourth signal conversion circuit and outputs it from the FG port ,
  • the speed feedback signal is a pulse signal, calculated based on how many small pulse signals are generated per revolution;
  • J1 port, jumper port, PWM port is electrically connected to J1 port through printed circuit 7 on the sub-circuit board, when J1 port is connected to SW port through external jumper switch K to switch the operating mode; directly use PWM port input
  • the PWM reaches the SW port to switch the operation mode through a printed circuit 7, J1 port, and jumper switch K on the sub-circuit board, without external driving power, simplifying the structure and reducing manufacturing costs.
  • R/T port serial communication port, this port is connected to the half-duplex bidirectional serial communication circuit 5 set on the sub-circuit board, and is used to transmit data between the mother circuit board of the motor controller and the user-side control system;
  • GND2 port this port is the common grounding terminal provided by the user-side control system for the sub-circuit board;
  • the V port is a power input port. This port is used by the user-side control system to provide DC power to the sub-circuit board, and the power input from the V port provides power for the half-duplex bidirectional serial communication circuit 5.
  • the above-mentioned first signal conversion circuit 1, second signal conversion circuit 2, third signal conversion circuit 3, and fourth signal conversion circuit 4 are all photoelectric coupling circuits.
  • the first signal conversion circuit 1 includes an optocoupler chip U601, a resistor R601, a resistor R602, and a capacitor C601, and the output signal I O1 is sent to the motherboard microprocessor;
  • the second signal conversion circuit 2 includes an optocoupler chip U602, a resistor R603, a resistor R604, and Capacitor C602, output signal I O3 to the motherboard microprocessor;
  • the third signal conversion circuit 3 includes optocoupler chip U603, resistor R605, resistor R606 and capacitor C604, output signal I O5 to the motherboard microprocessor;
  • fourth signal conversion Circuit 4 includes optocoupler chip U604, resistor R607 and resistor R608, the speed feedback signal I 06 outputted by the motherboard microprocessor, and the speed feedback signal I 06 is processed by the fourth signal conversion circuit 4 to form a pulse signal and sent
  • the several unit circuits mentioned above also include an identification circuit 6 which outputs an identification signal BSEL to the mother circuit board so that the mother circuit board can identify the type of the daughter circuit board.
  • the specifications of the PWM speed control signal input from the above PWM port are: the voltage range is 12V-24V DC, and the frequency range is 80Hz-120Hz, which is conducive to standardizing the PWM speed control signal.
  • the specifications of the G port input signal mentioned above the voltage is 24V AC, and the frequency range is 50Hz-60Hz.
  • the above-mentioned mother circuit board provides +3.3V DC input power and ground terminal GND1 for the daughter circuit board.
  • the power input of the aforementioned V port is +15V DC input power.
  • the enable switch signal input port of the G port mentioned above is the fan mode start signal port, and the SW port is used to switch between constant torque operation mode and constant air volume operation mode, or to switch between constant torque operation mode and constant torque operation mode. Switch between speed operation modes.
  • this embodiment is a modification based on the first embodiment.
  • the modification points are: a sub-circuit board.
  • the sub-circuit board includes several units integrated on the sub-circuit board.
  • the sub-circuit board is used to plug into the mother circuit board of the motor controller to match the interface signals of the client control system.
  • the several unit circuits include a first signal conversion circuit 1A, a second signal conversion circuit 2A, and a third signal conversion circuit.
  • the signal conversion circuit 3A and the half-duplex two-way serial communication circuit are characterized in that: the sub-circuit board is connected with the user-side control system and is provided with a number of ports, and the plurality of ports include 5 gear signal input ports, PWM ports, GND2 port and R/T port, the 5 gear signal input ports are M1 port, M2 port, M3 port, M4 port and M5 port respectively. Among them:
  • the input signals of the M1 port and M2 port are converted by the first signal conversion circuit 1A provided on the sub-circuit board, and then combined into a signal input to the mother circuit board;
  • the first signal conversion circuit 1A is a photoelectric coupling circuit, which mainly includes a photoelectric coupling chip U401 , Resistor R401, Resistor R421, Capacitor C401, etc.
  • the gear signal of the M1 port is input to the input of the photoelectric coupling chip U401, and the gear signal of the M2 port is processed by half-wave rectification 8A and then the frequency is reduced by half before input to the photoelectric coupling
  • the input terminal of the chip U401, the specifications of the gear signal input from the M1 port or M2 port meet the following conditions: voltage 24VAC, the frequency range of the input voltage is: 50Hz-60Hz, the photoelectric coupling chip U401 processes the gear input signal and sends it To the motherboard microprocessor, through frequency discrimination, it can be judged whether it is the gear signal of the M1 port or the gear signal of the M2 port;
  • the input signals of the M3 port and M4 port are converted by the second signal conversion circuit 2A provided on the sub-circuit board and merged into a signal input to the mother circuit board;
  • the second signal conversion circuit 2A is a photoelectric coupling circuit, which mainly includes photoelectric coupling Chip U402, resistor R402, resistor R419, capacitor C402, etc.
  • the gear signal of the M3 port is input to the input of the photoelectric coupling chip U402
  • the gear signal of the M4 port is processed by half-wave rectification 8A and then the frequency is reduced by half before input
  • the input end of the photoelectric coupling chip U402, the specifications of the gear signal input from the M3 port or M4 port meet the following conditions: voltage 24VAC, the frequency range of the input voltage is: 50Hz-60Hz, the photoelectric coupling chip U402 processes the gear input signal After it is sent to the motherboard microprocessor, it can be judged whether it is the M3 port gear signal or the M4 port gear signal through frequency discrimination;
  • the input signals of the M5 port and the PWM port are converted by the third signal conversion circuit 3A provided on the sub-circuit board, and then combined into a signal input to the mother circuit board; among them, the PWM port is used for PWM signal input; the third signal conversion circuit 3A is
  • the photoelectric coupling circuit mainly includes photoelectric coupling chip U403, resistor R403, resistor R417, capacitor C403, etc.
  • the gear signal of the M5 port is input to the input end of the photoelectric coupling chip U403, and the gear signal of the PWM port is processed by half-wave rectification 8A. After the frequency is reduced by half, it is input to the input end of the photoelectric coupling chip U403.
  • the specifications of the gear signal input from the M5 port meet the following conditions: voltage 24VAC, the frequency range of the input voltage is: 50Hz-60Hz, photoelectric coupling chip U403 After processing the gear input signal, it is sent to the motherboard microprocessor. Through frequency discrimination, it can be judged whether it is the gear signal of the M5 port or the gear signal of the PWM port;
  • the gear signal (voltage 24VAC, input voltage frequency range: 50Hz-60Hz) of the M5 port is used in Figure 8 to obtain a DC DC power supply Vcc through the power conversion circuit 7A, and the DC DC power supply Vcc is a half-duplex bidirectional serial
  • the communication circuit 5A supplies power.
  • the gear signal of the M1 port, M2 port, M3 port, or M4 port can also be used as the input terminal of the power conversion circuit 7A.
  • R/T port serial communication port, this port is connected to the half-duplex bidirectional serial communication circuit 5A set on the sub-circuit board, and is used to transmit data between the mother circuit board of the motor controller and the user-side control system;
  • GND2 port this port is the common grounding terminal provided by the user-side control system for the sub-circuit board.
  • the sub-circuit board of the utility model is aimed at 5 gear signal input ports and 1 PWM port, and only uses 3 unit circuits including the first signal conversion circuit 1A, the second signal conversion circuit 2A, and the third signal conversion circuit 3A for processing. , Simplifying the circuit structure, reducing manufacturing costs, and facilitating signal matching with the client control system; in addition, the output signal of the first signal conversion circuit 1A is input to the mother circuit board through a port, and the output signal of the second signal conversion circuit 2A is passed through a port The port is input to the mother circuit board, and the output signal of the third signal conversion circuit 3A is input to the mother circuit board through a port, which can reduce the occupation of the input signal port resources of the motherboard microprocessor.
  • the first signal conversion circuit 1A is a photoelectric coupling circuit
  • the M1 port is connected to the input end of the first signal conversion circuit 1A
  • the M2 port is processed by half-wave rectification 8A to reduce the signal frequency by half and then connected to the first signal conversion circuit 1A ⁇ input terminal.
  • the second signal conversion circuit 2A is a photoelectric coupling circuit
  • the M3 port is connected to the input end of the second signal conversion circuit 2A
  • the M4 port is processed by half-wave rectification 8A to reduce the signal frequency by half and then connected to the second signal conversion circuit 2A ⁇ input terminal.
  • the third signal conversion circuit 3A is a photoelectric coupling circuit, the M5 port is connected to the input end of the third signal conversion circuit 3A, and the PWM port is processed by half-wave rectification 8A to reduce the signal frequency by half and then connected to the third signal conversion circuit 3A ⁇ input terminal.
  • the specifications of the input gear signal of the M1 port, M2 port, M3 port, M4 port, or M5 port meet the following conditions: the voltage is 24VAC, and the frequency range of the input voltage is: 50Hz-60Hz.
  • the frequency range of the input voltage is 80Hz-120Hz.
  • the aforementioned several unit circuits also include a power conversion circuit.
  • One of the M1 port, M2 port, M3 port, M4 port, or M5 port is connected to the input end of the power conversion circuit 7A, and the output Vcc of the power conversion circuit is half-double.
  • the two-way serial communication circuit 5A provides power supply, which is convenient to use and does not require power supply from the user-side control system.
  • the above-mentioned mother circuit board provides +3.3V DC input power and ground terminal GND1 for the daughter circuit board, simplifying the circuit structure of the daughter circuit board.
  • the above-mentioned several unit circuits also include an identity recognition circuit 6A.
  • the identity recognition circuit 6A provides an identification signal BSEL for identifying the type of the sub-circuit board to the mother circuit board, which is practical and convenient.
  • this embodiment is a modification on the basis of Embodiment 1.
  • the modification points are: a sub-circuit board, which includes a power conversion circuit 1B and a PWM signal processing circuit 3B , VSP signal processing circuit 2B, daughter board microprocessor 4B, serial communication circuit 6B and PWM signal generating circuit 5B, where:
  • the main circuit board of the motor controller provides DC input power for the power conversion circuit 1B, that is, provides two DC power sources of +15V and +5V and the ground terminal GND.
  • the power conversion circuit 1B outputs two DC power supplies and controls the system at the user end Power supply, respectively +12VDC, 3.3VDC two DC power supply and ground terminal GNDI SO;
  • the user-side control system inputs the PWM speed control signal to the interface sub-circuit board, and the PWM speed control signal is processed by the PWM signal processing circuit 3B and then outputs the PWM signal for input to the mother circuit board;
  • the user-side control system inputs the analog voltage speed control signal VSP to the sub-circuit board.
  • the analog voltage speed control signal VSP is processed by the VSP signal processing circuit 2B and input to the daughter board microprocessor 4B.
  • the daughter board microprocessor 4B drives the PWM signal generating circuit 5B.
  • the generated PWM signal is input to the mother circuit board;
  • the user-side control system uses the serial communication circuit 6B to communicate and exchange data with the mother circuit board.
  • the interface sub-circuit board of the utility model has both the PWM speed control function and the VSP speed control function, and can provide two power sources for the user-side control system, and has a serial port communication function, which has diverse functions and strong adaptability. It has a wide range of applications and can meet the diverse needs of customers.
  • the above-mentioned daughter board microprocessor 4B drives the PWM signal generated by the PWM signal generation circuit 5B and the PWM speed control signal is processed by the PWM signal processing circuit 3B, and then the output PWM signal is input to the bus circuit board through the same line, which can further simplify the circuit structure and reduce Occupy port resources.
  • the VSP input port has a signal input, the PWM input port is shielded; when the PWM input port signal is input, the VSP input port is shielded.
  • the above-mentioned power conversion circuit 1B outputs two DC power sources of +12V and +3.3V and supplies power to the user-side control system, which facilitates the use of the user-side control system.
  • the specifications of the above-mentioned user-side control system to input PWM speed control signal to the sub-circuit board are: the voltage range is 12V-24VDC, and the frequency range is 80Hz-120Hz.
  • the above-mentioned client control system inputs the specification of the analog voltage speed control signal VSP to the sub-circuit board: the voltage range is 0V-12V DC.
  • the 8 plug-in ports are M1, M2, M3, M4, M5, M6, M7, and M8 respectively.
  • the control system is connected and set at least 6 useful ports.
  • the 6 useful ports on the sub-circuit board are:
  • the sub-circuit board provides 12VDC power to the user-side control system
  • the user-side control system inputs PWM speed control signal to the sub-circuit board;
  • GNDISO input port the signal common ground provided by the user-side control system to the sub-circuit board
  • the user terminal control system inputs the analog voltage speed control signal VSP to the sub-circuit board;
  • the sub-circuit board provides 3.3VDC power to the user-side control system
  • R/T half-duplex serial communication port sub-circuit board and user-side control system for mutual data exchange.
  • a power input port V is also provided on the above-mentioned sub-circuit board.
  • the client control system uses the power input port V to provide power for the serial communication circuit, or the power conversion circuit 1B output +12V to provide power for the serial communication circuit. .
  • the above-mentioned it also includes an identification circuit 7B.
  • the identification circuit 7B provides an identification signal BSEL to the mother circuit board so that the mother circuit board can identify the interface type of the daughter circuit board.
  • the above-mentioned daughter circuit board and mother circuit board are provided with serial communication ports TXD and RXD.
  • the above-mentioned mother circuit board provides two DC input power sources of +15V and +5V and a ground port GND for the power conversion circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un moteur BLDC, comprenant un organe de commande de moteur et un corps de moteur. Le corps de moteur comprend un élément stator, un élément rotor, et un carter de moteur. L'organe de commande de moteur comprend une carte mère et une carte fille. La carte mère comprend un microprocesseur de carte mère, un circuit inverseur, un circuit d'alimentation électrique, et un circuit de détection. La carte fille comprend plusieurs circuits unitaires intégrés sur cette dernière. La carte fille est destinée à être enfichée dans la carte mère de l'organe de commande de moteur de manière à mettre en correspondance un signal d'interface de système de commande client. Un port de la carte fille fait appel à une nouvelle spécification électrique, favorise la mise en correspondance d'un signal avec un système de commande client d'un utilisateur, forme une norme d'universalité accrue, et facilite la gestion et la promotion d'application.
PCT/CN2019/105384 2019-04-15 2019-09-11 Moteur bldc Ceased WO2020211274A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201920504277.6 2019-04-15
CN201920504277.6U CN209676083U (zh) 2019-04-15 2019-04-15 一种bldc电机接口子线路板及bldc电机
CN201920535483.3U CN209545476U (zh) 2019-04-19 2019-04-19 一种直流无刷电机接口信号转换子线路板及电机
CN201920535483.3 2019-04-19
CN201920559398.0U CN209545478U (zh) 2019-04-23 2019-04-23 一种直流无刷电机接口信号转换子线路板及电机
CN201920559398.0 2019-04-23

Publications (1)

Publication Number Publication Date
WO2020211274A1 true WO2020211274A1 (fr) 2020-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/105384 Ceased WO2020211274A1 (fr) 2019-04-15 2019-09-11 Moteur bldc

Country Status (1)

Country Link
WO (1) WO2020211274A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201165991Y (zh) * 2008-02-05 2008-12-17 台达电子工业股份有限公司 温度感测风扇及其电路板
CN201869145U (zh) * 2010-12-02 2011-06-15 中山大洋电机股份有限公司 一种电子换向电机接口信号转换子线路板
CN203135655U (zh) * 2013-01-31 2013-08-14 中山大洋电机股份有限公司 一种电子换向电机接口信号转换子线路板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201165991Y (zh) * 2008-02-05 2008-12-17 台达电子工业股份有限公司 温度感测风扇及其电路板
CN201869145U (zh) * 2010-12-02 2011-06-15 中山大洋电机股份有限公司 一种电子换向电机接口信号转换子线路板
CN203135655U (zh) * 2013-01-31 2013-08-14 中山大洋电机股份有限公司 一种电子换向电机接口信号转换子线路板

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