WO2017181578A1 - 一种电机控制器及应用其的ecm电机 - Google Patents

一种电机控制器及应用其的ecm电机 Download PDF

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Publication number
WO2017181578A1
WO2017181578A1 PCT/CN2016/098490 CN2016098490W WO2017181578A1 WO 2017181578 A1 WO2017181578 A1 WO 2017181578A1 CN 2016098490 W CN2016098490 W CN 2016098490W WO 2017181578 A1 WO2017181578 A1 WO 2017181578A1
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WIPO (PCT)
Prior art keywords
signal
motor
input
pwm signal
gear position
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Ceased
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PCT/CN2016/098490
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English (en)
French (fr)
Inventor
边文清
张笛
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Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Publication of WO2017181578A1 publication Critical patent/WO2017181578A1/zh
Priority to US15/866,431 priority Critical patent/US10425034B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • 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
    • H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
    • 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
    • H02P6/04—Arrangements for controlling or regulating the speed or torque of more than one 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • 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
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • 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
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters

Definitions

  • the utility model relates to an ECM motor to which a motor controller is applied.
  • the motor in the traditional domestic central air conditioner generally adopts single-phase AC motor PSC, single-phase AC motor, low efficiency, relatively energy consumption and loud noise.
  • the degree of control intelligence is low.
  • a permanent magnet synchronous motor has emerged. This kind of motor has a motor controller, and the motor controller is used to realize the electronic commutation of current. Therefore, there is also an electronically commutated motor in the industry.
  • the permanent magnet synchronous motor has the characteristics of high energy saving, high reliability and controllability, low noise, and easy realization of intelligence, which can solve the shortage of single-phase AC motor.
  • the ECM motor on the market generally has 5-6 gear input lines (used to select different running speeds of the motor, there may be 1 PWM input line (for motor speed regulation), as shown in Figure 1, Figure 2
  • the ECM motor generally includes a motor body 1 and a motor controller 2, and the motor controller 2 includes a gear position detecting circuit, a power supply portion, a microprocessor, an inverter circuit, and a rotor position detecting circuit, 5
  • the gear input lines (N1, N2, N3, N4, N5), the common signal line COM and the power line (N, L), the ground line G and the PWM signal input line P0 are all taken out from the motor controller 2, and the PWM signal input line is drawn.
  • P0 can input PWM signal for motor speed regulation.
  • Motor controller 2 also extends a pair of communication connection terminals J1, a pair of steering setting terminals J2 and a pair of voltage double conversion terminals J3.
  • the motor can be realized by shorting the steering setting terminal J3.
  • the jumper In the forward rotation or reverse rotation operation, the jumper can be short-circuited by the double-voltage conversion terminal J2 to make the motor in one-time or double-pressure operation state, and the communication connection (serial communication) can be established externally through the communication connection terminal J1.
  • the motor controller 2 has more lead wires, occupies a certain space and leads to an increase in cost, and most of the lead wires are connected to the I/O common port of the microprocessor in the motor controller, and the microprocessor The I/O port resources are very tight.
  • the purpose of the utility model is to provide a motor controller and an ECM motor using the same, which fully utilizes the resources in the microprocessor, reduces the number of I/O ports occupied by the gear input lines, simplifies the structure and reduces the cost.
  • a motor controller comprises a microprocessor, an inverter circuit, a gear position detecting circuit and a power supply part, wherein an output end of the power supply part supplies power to each part of the circuit, and the PWM signal is input to the microprocessor through the isolation circuit through the PWM signal input line.
  • the utility model is characterized in that: a signal recognition unit is arranged in the microprocessor, wherein a motor gear position signal enters a signal recognition unit in the microprocessor through a PWM signal input line and an isolation circuit, and the signal recognition unit distinguishes the input of the PWM signal input line. Whether the signal is a PWM signal or a motor gear signal.
  • the motor gear signal described above is a 24 VAC signal or a 115 VAC signal or a 230 VAC signal.
  • the PWM signal input line described above is connected to the timer multiplexed I/O port of the microprocessor through an isolation circuit.
  • the motor gear signals of the other roads are input through a plurality of gear position input lines, the gear position detecting circuit is connected to a plurality of gear position input lines, and the gear position detecting circuit sends a plurality of road gear gear signals to the general purpose I/ of the microprocessor.
  • the microprocessor selects the operating parameters of the motor according to the detected motor gear signal of each gear position input line and the input motor gear position signal of the PWM signal input line, and controls the motor to operate according to the selected operating parameter.
  • the signal recognition unit described above is a hardware unit, which may be a spectrum identifier.
  • the frequency of the input signal of the PWM signal input line is 50HZ or 60HZ, it is regarded as a motor gear position signal; when the input signal of the PWM signal input line is The frequency is not equal to 50HZ or 60HZ and is regarded as a PWM signal.
  • the yoke signal recognition unit is a software unit.
  • the frequency of the input signal of the PWM signal input line is 50 Hz or 60 Hz, it is regarded as a motor gear position signal; when the frequency of the input signal of the PWM signal input line is not equal to 50 Hz or 60 Hz, Think of it as a PWM signal.
  • the isolation circuit described above is an optocoupler isolation circuit.
  • An ECM motor includes a motor controller and a motor body, the motor body including a rotor assembly, a stator assembly, and a casing assembly, and the motor controller employs the motor controller described above.
  • one of the motor gear position signals can also enter the signal recognition unit in the microprocessor through the PWM signal input line and the isolation circuit, and the signal recognition unit distinguishes whether the input signal of the PWM signal input line is a PWM signal or a motor file Bit signal, make full use of the resources inside the microprocessor, reduce the number of I/O ports occupied by the gear input line, simplify the structure (ie, the external lead can be reduced by one), and reduce the cost;
  • the isolation circuit is an optocoupler isolation circuit, and the motor gear position signal is 24VAC or 115VAC or 230VAC, and the adaptation range is wide;
  • the signal recognition unit is a hardware unit, which can be a spectrum recognizer or a software unit, which is simple in structure and easy to implement.
  • FIG. 1 is a schematic structural view of a conventional ECM motor
  • FIG. 2 is a schematic structural view of a lead wire of a conventional ECM motor
  • FIG. 3 is a circuit block diagram of a motor controller of a conventional ECM motor
  • FIG. 4 is a circuit block diagram of the motor controller of the present invention.
  • Figure 5 is a circuit diagram of the isolation circuit of the present invention.
  • Embodiment 1 As shown in FIG. 4 and FIG. 5, the utility model relates to a motor controller of an ECM motor, comprising a microprocessor, an inverter circuit, a gear position detecting circuit and a power supply part on a control circuit board, and a power supply part.
  • the input end of the ECM filtering is connected to the AC input
  • the output end of the ECM filter is connected to the input end of the rectification filter
  • the rectification filter outputs the bus voltage and is connected with the DC-DC conversion
  • the Hall element Hall detects the rotor position signal of the motor and sends it to the microprocessor, which controls the motor operation through the inverter circuit.
  • the motor controller of ECM motor has 5 gear input signals S1, S2, S3, S4, S5, one PWM signal is used for motor speed regulation, PWM signal is input through PWM signal input line P0 and sent to micro-processing through isolation circuit Inside the microprocessor, a signal recognition unit is arranged in the microprocessor, wherein a motor gear position signal S5 can also enter a signal recognition unit in the microprocessor through the PWM signal input line P0 and the isolation circuit, and the signal recognition unit distinguishes the PWM signal input line.
  • the input signal is the PWM signal or the motor gear signal S5.
  • the motor gear signals S1, S2, S3, S4, S5 are 24 VAC signals or 115 VAC signals or 230 VAC signals.
  • the PWM signal input line P0 is connected to the timer multiplexed I/O port of the microprocessor through an isolation circuit.
  • the motor gear signals S1, S2, S3, and S4 of the remaining roads are input through a plurality of gear position input lines N1, N2, N3, and N4, and the gear position detecting circuit is provided with a plurality of independent detecting units 21, 22, 23, and 24,
  • the detecting units 21, 22, 23, 24 are respectively connected to a plurality of gear position input lines N1, N2, N3, N4, and the gear position detecting circuit sends a plurality of road gear position signals S1, S2, S3, S4 to the microprocessor.
  • the general-purpose I/O port the microprocessor selects the operating parameters of the motor according to the detected motor gear position signals S1, S2, S3, S4 of the respective gear position input lines and the motor gear position signal S5 of the PWM signal input line P0. And control the motor to run according to the selected operating parameters.
  • the signal identification unit described above may be a hardware unit, which may be a spectrum identifier.
  • the frequency of the input signal of the PWM signal input line P0 is 50HZ or 60HZ, it is regarded as a motor gear position signal; when the PWM signal input line p0
  • the frequency of the input signal is not equal to 50HZ or 60HZ, which is regarded as a PWM signal and is used for speed regulation of the motor.
  • the general utility power or 24VAC the frequency is 50HZ or 60HZ
  • the spectrum recognizer can recognize the connected frequencies and output signals to the microprocessor.
  • the signal identification unit described above may also be a software unit (implemented by a program module in the microprocessor).
  • the frequency of the input signal of the PWM signal input line is 50HZ or 60HZ, it is regarded as a motor gear position signal; when the PWM signal is The input signal input frequency of the input line is not equal to 50HZ or 60HZ and is regarded as a PWM signal.
  • the isolation circuit shown in FIG. 5 is an optocoupler isolation circuit including a resistor R1, a resistor R2, a diode D1, and an optocoupler IC.
  • the optocoupler isolation circuit output frequency is 50HZ or The 60HZ square wave signal can be read by the microprocessor through the timer multiplexing I/O port and judged by the software program module.
  • Embodiment 2 A motor controller and a motor body are included.
  • the motor body includes a rotor assembly, a stator assembly, and a casing assembly.
  • the motor controller adopts the motor controller described in Embodiment 1.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Ac Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

一种电机控制器及应用其的ECM电机，电机控制器（2）包括微处理器、逆变电路、档位检测电路和电源部分，电源部分的输出端为各部分电路供电，PWM信号通过PWM信号输入线（P0）通过隔离电路输入到微处理器里面，其特征在于：微处理器里面设置信号识别单元，其中一路电机档位信号还可以通过PWM信号输入线（P0）、隔离电路进入到微处理器里的信号识别单元，信号识别单元区分出PWM信号输入线（P0）的输入信号是PWM信号还是电机档位信号（S5）；它充分利用微处理器里面的资源，减少档位输入线占用的I/O端口数量，简化结构，降低成本。

Description

一种电机控制器及应用其的ECM电机 技术领域：
本实用新型涉及一种电机控制器应用其的ECM电机。
背景技术：
近几年，随着电器领域竞争日趋激烈，对产品技术要求不断提高，如要求产品节能环保、可控性智能化程度高、开发周期短、噪音小等。作为核心部件——电机，无疑成为解决上述技术问题的关键部件，传统的家用中央空调里面的电机普遍采用单相交流电机PSC，单相交流电机，效率低，比较耗能、噪音也大，可控性智能程度低。随着电机技术的发展，出现了永磁同步电机，该种电机带有电机控制器，利用电机控制器实现电流的电子换向的目的，所以行业里也有人简称ECM电机(electronically commutated motor)，永磁同步电机具有节能环保、可靠性和可控性都比较高、噪音小、容易实现智能化等特点，可以解决单相交流电机的不足。
目前，市场上的ECM电机，一般带有5-6条档位输入线(用于选择电机的不同运行转速，可能有1条PWM输入线(用于电机调速)，如图1、图2和图3所示，所示，ECM电机一般包括电机实体1和电机控制器2，电机控制器2包括档位检测电路、电源部分，微处理器、逆变电路和转子位置检测电路，5条档位输入线(N1、N2、N3、N4、N5)、公共信号线COM和电源线(N、L)、接地线G和PWM信号输入线P0都从电机控制器2引出，PWM信号输入线P0可以输入PWM信号进行电机调速，电机控制器2上还伸出一对通信连接端子J1、一对转向设置端子J2和一对倍压转换端子J3，可以通过短接转向设置端子J3实现电机正转或者反转运行，可以通过倍压转换端子J2进行跳线短接使电机处于一倍压或者二倍压的运行状态，可以通过通信连接端子J1对外建立通信连接(串行通信)。
有鉴于此，电机控制器2引出线较多，占用一定的空间和导致成本的增加，且大部分的引出线都与电机控制器里面的微处理器的I/O普通端口连接，微处理器的I/O端口资源非常紧张。
发明内容：
本实用新型的目的是提供一种电机控制器及应用其的ECM电机，它充分利用微处理器里面的资源，减少档位输入线占用的I/O端口数量，简化结构，降低成本。
本实用新型的目的是通过下述技术方案予以实现的。
一种电机控制器，包括微处理器、逆变电路、档位检测电路和电源部分，电源部分的输出端为各部分电路供电，PWM信号通过PWM信号输入线通过隔离电路输入到微处理器里面，其特征在于：微处理器里面设置信号识别单元，其中一路电机档位信号通过PWM信号输入线、隔离电路进入到微处理器里的信号识别单元，信号识别单元区分出PWM信号输入线的输入信号是PWM信号还是电机档位信号。
上述所述的电机档位信号是24VAC信号或者是115VAC信号或者230VAC信号。
上述所述的PWM信号输入线通过隔离电路连接在微处理器的定时器复用I/O端口。
上述其余各路的电机档位信号通过若干路档位输入线输入，档位检测电路连接若干路档位输入线，档位检测电路将若干路电机档位信号送到微处理器的通用I/O端口，微处理器根据检测到的各路档位输入线的电机档位信号和PWM信号输入线的输入的电机档位信号选择电机的运行参数，并控制电机按选择的运行参数运行。
上述所述的信号识别单元是一个硬件单元，可以是一个频谱识别器，当PWM信号输入线的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线的输入信号的频率不等于50HZ或者60HZ，视为PWM信号。
上述所述轭信号识别单元是一个软件单元，当PWM信号输入线的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线的输入信号的频率不等于50HZ或者60HZ，视为PWM信号。
上述所述的隔离电路是一个光耦隔离电路。
一种ECM电机，包括电机控制器和电机实体，电机实体包括转子组件、定子组件和机壳组件，电机控制器采用权利要求上述的电机控制器。
本实用新型与现有技术相比，具有如下效果：
1)本实用新型其中一路电机档位信号还可以通过PWM信号输入线、隔离电路进入到微处理器里的信号识别单元，信号识别单元区分出PWM信号输入线的输入信号是PWM信号还是电机档位信号，充分利用微处理器里面的资源，减少档位输入线占用的I/O端口数量，简化结构(即外接引线可以减少1根)，降低成本；
2)所述的隔离电路是一个光耦隔离电路，电机档位信号是24VAC或者是115VAC或者230VAC，适应范围广；
3)信号识别单元是一个硬件单元，可以是一个频谱识别器，或者是一个软件单元，结构简单，容易实现。
附图说明：
图1是现有ECM电机的结构示意图；
图2是现有ECM电机的引出线的结构示意图；
图3是现有ECM电机的电机控制器的电路方框图；
图4是本实用新型的电机控制器的电路方框图；
图5是本实用新型隔离电路的电路图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一：如图4、图5所示，本实用新型是一种ECM电机的电机控制器，包括控制线路板上的微处理器、逆变电路、档位检测电路和电源部分，电源部分包括ECM滤波、整流滤波和DC-DC变换，ECM滤波的输入端连接交流输入，ECM滤波的输出端与整流滤波的输入端连接，整流滤波输出母线电压并与DC-DC变换连接，DC-DC变换输出+15V、+5V，母线电压、+15V、+5V为各部分电路供电， 霍尔元件Hall检测电机的转子位置信号并送到微处理器，微处理器通过逆变电路控制电机运行。ECM电机的电机控制器有5个档位输入信号S1、S2、S3、S4、S5，1个PWM信号用于电机调速，PWM信号通过PWM信号输入线P0输入并通过隔离电路输送到微处理器里面，微处理器里面设置信号识别单元，其中一路电机档位信号S5还可以通过PWM信号输入线P0、隔离电路进入到微处理器里的信号识别单元，信号识别单元区分出PWM信号输入线的输入信号是PWM信号还是电机档位信号S5。电机档位信号S1、S2、S3、S4、S5是24VAC信号或者是115VAC信号或者230VAC信号。PWM信号输入线P0通过隔离电路连接在微处理器的定时器复用I/O端口。其余各路的电机档位信号S1、S2、S3、S4通过若干路档位输入线N1、N2、N3、N4输入，档位检测电路设置若干个独立的检测单元21、22、23、24，这些检测单元21、22、23、24分别连接若干路档位输入线N1、N2、N3、N4，档位检测电路将若干路电机档位信号S1、S2、S3、S4送到微处理器的通用I/O端口，微处理器根据检测到的各路档位输入线的电机档位信号S1、S2、S3、S4和PWM信号输入线P0的输入的电机档位信号S5选择电机的运行参数，并控制电机按选择的运行参数运行。
上述所述的信号识别单元可以是一个硬件单元，可以是一个频谱识别器，当PWM信号输入线P0的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线p0的输入信号的频率不等于50HZ或者60HZ，视为PWM信号，用于电机的调速。一般的市电或者24VAC，其频率是50HZ或者60HZ，频谱识别器能识别这连个频率，并输出信号到微处理器。
上述所述的信号识别单元也可以是一个软件单元(通过微处理器里面的程序模块实现)，当PWM信号输入线的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线的输入信号的频率不等于50HZ或者60HZ，视为PWM信号。
如图5所示隔离电路是一个光耦隔离电路，包括电阻R1、电阻R2、二极管D1和光耦IC。当24VAV档位信号S5输入时，光耦隔离电路输出频率为50HZ或 者60HZ的方波信号，微处理器能通过定时器复用I/O端口读取，并用软件程序模块来判断。
实施例二：包括电机控制器和电机实体，电机实体包括转子组件、定子组件和机壳组件，电机控制器采用实施例一所述的电机控制器。
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本发明的保护范围之内。

Claims (8)

  1. 一种电机控制器，包括微处理器、逆变电路、档位检测电路和电源部分，电源部分的输出端为各部分电路供电，PWM信号通过PWM信号输入线通过隔离电路输入到微处理器里面，其特征在于：微处理器里面设置信号识别单元，其中一路电机档位信号通过PWM信号输入线、隔离电路进入到微处理器里的信号识别单元，信号识别单元区分出PWM信号输入线的输入信号是PWM信号还是电机档位信号。
  2. 根据权利要求1所述的一种电机控制器，其特征在于：电机档位信号是24VAC信号或者是115VAC信号或者230VAC信号。
  3. 根据权利要求1或2所述的一种电机控制器，其特征在于：PWM信号输入线通过隔离电路连接在微处理器的定时器复用I/O端口。
  4. 根据权利要求3所述的一种电机控制器，其特征在于：其余各路的电机档位信号通过若干路档位输入线输入，档位检测电路连接若干路档位输入线，档位检测电路将若干路电机档位信号送到微处理器的通用I/O端口，微处理器根据检测到的各路档位输入线的电机档位信号和PWM信号输入线的输入的电机档位信号选择电机的运行参数，并控制电机按选择的运行参数运行。
  5. 根据权利要求3所述的一种电机控制器，其特征在于：信号识别单元是一个硬件单元，可以是一个频谱识别器，当PWM信号输入线的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线的输入信号的频率不等于50HZ或者60HZ，视为PWM信号。
  6. 根据权利要求3所述的一种电机控制器，其特征在于：信号识别单元是一个软件单元，当PWM信号输入线的输入信号的频率是50HZ或者60HZ，视为电机档位信号；当PWM信号输入线的输入信号的频率不等于50HZ或者60HZ，视为PWM信号。
  7. 根据权利要求3所述的一种电机控制器，其特征在于：隔离电路是一个光耦隔离电路。
  8. 一种ECM电机，包括电机控制器和电机实体，电机实体包括转子组件、定子组件和机壳组件，其特征在于：电机控制器采用权利要求1至7所述的任何一项电机控制器。
PCT/CN2016/098490 2016-04-21 2016-09-08 一种电机控制器及应用其的ecm电机 Ceased WO2017181578A1 (zh)

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