WO2016023389A1 - 一种抽油烟机系统 - Google Patents

一种抽油烟机系统 Download PDF

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Publication number
WO2016023389A1
WO2016023389A1 PCT/CN2015/077455 CN2015077455W WO2016023389A1 WO 2016023389 A1 WO2016023389 A1 WO 2016023389A1 CN 2015077455 W CN2015077455 W CN 2015077455W WO 2016023389 A1 WO2016023389 A1 WO 2016023389A1
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Prior art keywords
range hood
motor
circuit board
control circuit
air
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PCT/CN2015/077455
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English (en)
French (fr)
Inventor
赵勇
王继忠
张先胜
孙海荣
周一桥
张政
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中山大洋电机股份有限公司
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Publication of WO2016023389A1 publication Critical patent/WO2016023389A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the utility model relates to a range hood system.
  • the motor in the traditional household range hood generally adopts single-phase AC motor PSC, single-phase AC motor, low efficiency, relatively energy consumption and loud noise. Controllability is low in intelligence.
  • DC motors have gradually replaced AC motors.
  • DC motors have motor controllers, which use motor controllers to achieve the purpose of electronic commutation of currents. Therefore, there is also an ECM motor (electronically commutated motor) in the industry.
  • Brushless DC motor (BLDC MOTOR), which has the characteristics of high energy saving, high reliability and controllability, low noise, easy to realize intelligence, etc., can solve the shortage of single-phase AC motor.
  • the purpose of the utility model is to provide a range hood system, wherein the fan motor is a constant air volume controlled permanent magnet brushless DC motor, which can automatically adjust the operating parameter according to different external static pressure to output a constant air volume, which can better To solve the above problems, the cost is low and the installation is convenient.
  • a range hood system comprises a casing, a blower, a range hood control circuit board, an air inlet, an air outlet and a air duct are arranged on the casing, and the blower and the range hood control circuit board are installed in the casing
  • the blower comprises a fan motor and a wind wheel, and the wind wheel is driven by the fan motor, and the fan motor drives the wind wheel to rotate, so that the air enters the air duct from the air inlet and then outputs from the air outlet, and the fan motor comprises a motor controller and a motor unit.
  • the motor unit comprises a stator assembly, a rotor assembly and a casing assembly, the stator assembly is mounted on the casing assembly, the stator assembly and the rotor assembly are magnetically coupled, the motor controller comprises a motor control circuit board, and the motor control circuit board layout is micro
  • the static pressure automatically adjusts the operating parameters to output a constant air volume.
  • the range hood control circuit board and the motor control circuit board are connected and communicated with each other, and the range hood control circuit board inputs the set air volume parameter to the microprocessor of the fan motor.
  • the range hood control circuit board and the motor control circuit board described above are integrated into one circuit board.
  • the microprocessor described above calculates the exhausting amount of the range hood according to the operating parameters of the motor unit.
  • the microprocessor sends a signal to drive the alarm circuit to alarm. .
  • the above-mentioned motor control circuit board is provided with an alarm circuit, and the alarm circuit is an audible alarm circuit or a photoelectric alarm circuit.
  • the above-mentioned range hood control circuit board is provided with an alarm circuit.
  • the alarm circuit described above includes the original liquid crystal display of the range hood system, and the control hood of the range hood receives the output alarm signal of the microprocessor and then outputs a signal to the liquid crystal display, and uses the text or the pattern to prompt the air passage blockage.
  • the motor control circuit board described above is also provided with a power supply circuit for supplying power to a part of the circuit.
  • the motor unit described above is equipped with a Hall sensor for detecting the position of the rotor, and the Hall sensor detects the rotor position signal and inputs it to the microprocessor.
  • the above-mentioned motor control circuit board is further arranged with a phase current detecting circuit or a bus current detecting circuit, and the phase current detecting circuit and the bus current detecting circuit respectively detect the phase current signal and the bus current signal of the inverter circuit and input to the micro processor.
  • the fan motor is a permanent magnet brushless DC motor controlled by constant air volume. It can automatically adjust the operating parameters according to different external static pressure to output a constant air volume.
  • the air output is stable, which satisfies the customer's needs well, and the cost is low. Easy to install;
  • the range hood control circuit board and the motor control circuit board are connected to each other, and the range hood control circuit board inputs the set air volume parameter to the microprocessor of the fan motor, and the air volume parameter is convenient to set, and the control of the range hood system is not required.
  • the circuit structure of the circuit board reduces the cost;
  • the range hood control circuit board and the motor control circuit board are integrated into one circuit board, which is compact in structure, can further save space and is convenient to install;
  • the microprocessor calculates the exhausting amount of the range hood according to the operating parameters of the motor unit.
  • the microprocessor sends a signal to drive the alarm circuit to alarm, and the structure Simpler, lower cost, reducing the user's control of the range hood system control circuit board specifically for setting the alarm circuit;
  • the alarm circuit is set on the motor control circuit board.
  • the alarm circuit is an audible alarm circuit or a photoelectric alarm circuit. It is not necessary to change the circuit structure of the control hood of the range hood system, which is more convenient and simple;
  • the alarm circuit is set on the control circuit board of the range hood, which has a simple structure and convenient installation;
  • the alarm circuit includes the original liquid crystal display of the range hood system.
  • the control panel of the range hood receives the output alarm signal from the microprocessor and then outputs the signal to the liquid crystal display.
  • the text or pattern is used to indicate the blockage of the air passage, making full use of the original Some hardware resources, the structure is simpler and the cost is lower.
  • Figure 1 is a schematic view showing the structure of a conventional range hood system
  • FIG. 2 is a control block diagram of a fan motor portion of the range hood system of the present invention
  • Figure 3 is a perspective view of the fan motor of the present invention.
  • FIG. 4 is a perspective view of a motor controller of the fan motor of the present invention.
  • Figure 5 is a cross-sectional view of the fan motor of the present invention.
  • FIG. 6 is a block diagram showing an implementation circuit of a motor controller of the fan motor of the present invention.
  • Figure 7 is a circuit diagram corresponding to Figure 6;
  • Figure 8 is a schematic view showing the connection of the fan motor of the utility model and the control circuit board of the range hood system
  • Figure 9 is a circuit diagram of an alarm circuit in the embodiment.
  • Figure 10 is a circuit diagram of another alarm circuit in the embodiment.
  • the range hood system generally includes the casing 1, the range hood system control circuit board ( Figure Not shown in the drawing), the fan motor 6 and the wind wheel 7, the air inlet 3, the air outlet 4, the air duct 2 are arranged on the casing 1, the fan motor 6 and the wind wheel 7 are installed in the air duct 2, and the fan motor 6 drives the wind wheel 7 Rotating causes air to enter the air duct 2 from the air inlet 3 and then output from the air outlet 4, the fan motor 6 includes a motor controller 62 and a motor unit 61, and the motor unit 61 includes a stator assembly 612, a rotor assembly 613, and a machine
  • the motor controller 62 includes a motor control circuit board 621, and the motor control circuit board 621 is provided with
  • the microprocessor controls the inverter circuit, and the inverter circuit controls the current of each phase coil winding of the stator assembly 612.
  • the fan motor is a constant air volume controlled permanent magnet brushless DC motor, which can automatically adjust and operate according to different external static pressures.
  • Parameter output constant air volume For example, the patents previously filed by our company, the publication numbers are CN103809437, CN103375419 and CN3376743.
  • the permanent magnet synchronous motor with constant air volume control has been disclosed. The specific control structure of the permanent magnet synchronous motor with constant air volume control will not be described here.
  • the permanent magnet synchronous motor controlled by the constant air volume is replaced with the brushless DC motor in the traditional range hood system, so that the range hood can automatically adjust the operating parameter according to different external static pressure to output a constant air volume to meet the needs of users.
  • the rotor position measuring circuit 614 detects the rotor position signal and inputs it to the microprocessor, which controls the inverter circuit, and the inverter circuit controls the on and off of the coil windings of the respective phases of the stator assembly 612.
  • the microprocessor can also control the inverter circuit using a vectorless or square wave without position sensor, and the inverter circuit controls the on and off of the coil windings of the respective phases of the stator assembly 612.
  • a bus current detecting circuit is also arranged on the motor control circuit board, and the bus current detecting circuit detects the bus current signal of the inverter circuit and inputs it to the micro processing.
  • a phase current detecting circuit is arranged on the motor control circuit board, and the phase current detecting circuit detects the phase current signal of the inverter circuit and inputs it to the microprocessor.
  • a range hood system control board is sent to the motor controller via peripheral circuitry and protocol setup information for a custom interface.
  • the motor controller includes a microprocessor - a single-chip microcomputer or a DSP digital signal processor.
  • the fan motor has permanent magnets on the rotor and multi-phase windings on the stator side or in the slots.
  • the wind wheel inside the blower is installed on the output shaft of the fan motor, and the fan motor rotates to bring the airflow generated by the rotation of the wind wheel at a certain speed.
  • the fan motor is a 3-phase brushless DC permanent magnet synchronous motor
  • the rotor position measuring circuit 614 generally adopts three Hall sensors, and the three Hall sensors respectively detect a 360-degree electrical angle cycle.
  • the rotor position changes the energization of each phase coil winding of the stator assembly 12 every 120 degrees of electrical angle to form a 3-phase 6-step control mode.
  • the AC INPUT passes through the full-wave rectifier circuit consisting of diodes D7, D8, D9, and D10, the DC bus voltage Vbus is output at one end of the capacitor C1.
  • the DC bus current Ibus can be changed.
  • the inverter circuit is composed of electronic switch tubes Q1, Q2, Q3, Q4, Q5 and Q6. The control terminals of the electronic switch tubes Q1, Q2, Q3, Q4, Q5 and Q6 are respectively output by the microprocessor.
  • the 6-channel PWM signal (P1, P2, P3, P4, P5, P6) is controlled.
  • the inverter circuit is also connected to the resistor R1 for detecting the bus current Ibus.
  • the bus current detecting circuit converts the detected bus current Ibus of the resistor R1 and transmits it to microprocessor.
  • the range hood control circuit board 100 and the motor control circuit board 621 are connected to each other through five connection ports: port GND, port VSP, port VDC, port VCC, and port FG. .
  • the range hood control circuit board 100 and the motor control circuit board 621 are integrated on one circuit board.
  • an alarm circuit is arranged on the motor control circuit board.
  • the microprocessor When the detected air volume is lower than the set air volume, the microprocessor outputs a signal to the alarm circuit to trigger an alarm.
  • the alarm circuit is an audible and visual alarm circuit, It mainly includes resistors R1 and R2, a light-emitting diode D1 and a speaker.
  • the alarm circuit may also be an audible alarm circuit with a buzzer or a photoelectric alarm circuit with a light-emitting diode D1, and the specific alarm circuit is not limited.
  • the alarm circuit can also be disposed on the range hood control circuit board 100, and the circuit structure is the same, and details are not described herein again.
  • a voice IC having a voice sounding reminding function may be further included on the basis of the above alarm circuit.

Abstract

一种抽油烟机系统，包括机壳（1）、鼓风机和抽油烟机控制线路板，机壳（1）上设置进风口（3）、出风口（4）和风道（2），鼓风机和抽油烟机控制线路板安装在机壳（1）里面，鼓风机包括风机电机（6）和风轮（7），风轮（7）由风机电机（6）驱动，风机电机（6）带动风轮（7）转动使空气从进风口（3）进入风道（2）然后从出风口（4）输出，风机电机（6）包括电机控制器（62）和电机单体（61），电机单体（61）包括定子组件（612）、转子组件（613）和机壳组件（611），定子组件（612）安装在机壳组件（611）上，定子组件（612）和转子组件（613）磁耦合，电机控制器（62）包括电机控制线路板（621），电机控制线路板（621）布局有微处理器、逆变电路，微处理器控制逆变电路，逆变电路控制定子组件（612）的各相线圈绕组的电流，风机电机（6）为恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量。

Description

一种抽油烟机系统 技术领域：
本实用新型涉及一种抽油烟机系统。
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，传统的家用抽油烟机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，直流电机逐渐取代交流电机，直流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)或者叫直流无刷电机(BLDC MOTOR)，它具有节能环保、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。
中国国内或者亚洲其它国家抽油烟机，通常采用无刷直流电机，但这些无刷直流电机都基本采用恒转速控制，由于楼层越高，静压会发生改变，导致输出风量不恒定，不能满足用户的需求。
现有的解决方案：有的在出风口或者风道内加装风压计来判断风量的大小，有的安装风量计来测算风量，但是这样都需要增加格外的硬件，安装布线麻烦，增加额外的成本。
实用新型内容：
本实用新型的目的是提供一种抽油烟机系统，利用风机电机是一台恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量，能较好地解决上述问题，成本较低，安装方便。
本实用新型的目的是通过下述技术方案予以实现的。
一种抽油烟机系统，包括机壳、鼓风机、抽油烟机控制线路板，机壳上设置进风口、出风口、风道，所述的鼓风机和抽油烟机控制线路板安装在机壳里 面，鼓风机包括风机电机和风轮，风轮由风机电机驱动，风机电机带动风轮转动使空气从进风口进入风道然后从出风口输出，所述的风机电机包括电机控制器和电机单体，所述的电机单体包括定子组件、转子组件和机壳组件，定子组件安装在机壳组件上，定子组件和转子组件磁耦合，电机控制器包括电机控制线路板，电机控制线路板布局有微处理器、逆变电路，微处理器控制逆变电路，逆变电路控制定子组件的各相线圈绕组的电流，风机电机是一台恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量。
上述所述的抽油烟机控制线路板与电机控制线路板相互连接通信，抽油烟机控制线路板向风机电机的微处理器输入设定的风量参数。
上述所述的抽油烟机控制线路板与电机控制线路板集成到一个线路板。
上述所述的微处理器根据电机单体的运行参数来计算抽油烟机抽风量，当设定的风量参数与计算抽油烟机抽风量发生一定的偏差时，微处理器发出信号驱动报警电路报警。
上述所述的电机控制线路板上设置报警电路，报警电路是声音报警电路或者光电报警电路。
上述所述的抽油烟机控制线路板上设置报警电路。
上述所述的报警电路包括抽油烟机系统原有的液晶显示器，抽油烟机控制线路板收到微处理器输出报警信号后再输出信号到液晶显示器，利用文字或图案来提示风道堵塞。
上述所述的电机控制线路板上还布局有电源电路为部分电路供电。
上述所述的电机单体安装有检测转子位置的霍尔传感器，霍尔传感器检测转子位置信号并输入到微处理器.
上述所述的电机控制线路板上还布局有一个相电流检测电路或一个母线电流检测电路，相电流检测电路和母线电流检测电路分别检测逆变电路的相电流信号和母线电流信号并输入到微处理器。
本实用新型与现有技术相比，具有如下效果：
1)利用风机电机是一台恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量，风量输出稳定，很好地满足了客户需求，而且成本较低，安装方便；
2)抽油烟机控制线路板与电机控制线路板相互连接通信，抽油烟机控制线路板向风机电机的微处理器输入设定的风量参数，设定风量参数方便，无需改变抽油烟机系统控制线路板的电路结构，降低成本；
3)抽油烟机控制线路板与电机控制线路板集成到一个线路板，结构紧凑，可以进一步节省空间，安装方便；
4)微处理器根据电机单体的运行参数来计算抽油烟机抽风量，当设定的风量参数与计算抽油烟机抽风量发生一定的偏差时，微处理器发出信号驱动报警电路报警，结构更简单，成本更低，减少用户专门为设置报警电路而改动抽油烟机系统控制线路板；
5)电机控制线路板上设置报警电路，报警电路是声音报警电路或者光电报警电路，无须改变抽油烟机系统控制线路板的电路结构，更加方便简单；
6)抽油烟机控制线路板上设置报警电路，结构简单，安装方便；
7)报警电路包括抽油烟机系统原有的液晶显示器，抽油烟机控制线路板收到微处理器输出报警信号后再输出信号到液晶显示器，利用文字或图案来提示风道堵塞，充分利用原有的硬件资源，结构更简单，成本更低。
附图说明：
图1是传统的抽油烟机系统的风道结构示意图；
图2是本实用新型抽油烟机系统的风机电机部分的控制方框图；
图3是本实用新型风机电机的立体图；
图4是本实用新型风机电机的电机控制器的立体图；
图5是本实用新型风机电机的剖视图；
图6是本实用新型风机电机的电机控制器的实施电路方框图；
图7是图6对应的电路图；
图8是本实用新型风机电机与抽油烟机系统控制线路板的连接示意图；
图9是实施例中一种报警电路的电路图；
图10是实施例中另一种报警电路的电路图。
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。
如图1、如图3、图4、图5所示，是一个传统抽油烟机系统管道(简称风道)结构，抽油烟机系统一般包括机壳1、抽油烟机系统控制线路板(图中未画出)、风机电机6和风轮7，机壳1上设置进风口3、出风口4、风道2，风机电机6和风轮7安装在风道2里面，风机电机6带动风轮7转动使空气从进风口3进入风道2，然后从出风口4输出，风机电机6包括电机控制器62和电机单体61，所述的电机单体61包括定子组件612、转子组件613和机壳组件611，定子组件612安装在机壳组件611上，定子组件612和转子组件613磁耦合，电机控制器62包括电机控制线路板621，电机控制线路板621布局有微处理器、逆变电路，微处理器控制逆变电路，逆变电路控制定子组件612的各相线圈绕组的电流，风机电机是一台恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量。如我司早前申请的专利，公开号为CN103809437、CN103375419和CN3376743，早已披露恒风量控制的永磁同步电机，在此不再赘述恒风量控制的永磁同步电机的具体控制结构。把采用该些恒风量控制的永磁同步电机替换传统抽油烟机系统里面的无刷直流电机，以使抽油烟机能根据不同的外部静压自动调节运行参数输出恒定风量，满足用户的需求。
如图6所示，转子位置测量电路614检测转子位置信号并输入到微处理器，微处理器控制逆变电路，逆变电路控制定子组件612的各相线圈绕组的通断电。微处理器还可以采用无位置传感器的矢量或者方波控制逆变电路，逆变电路控制定子组件612的各相线圈绕组的通断电。电机控制线路板上还布局有母线电流检测电路，母线电流检测电路检测逆变电路的母线电流信号并输入到微处理 器。或者电机控制线路板上布局有一个相电流检测电路，相电流检测电路检测逆变电路的相电流信号并输入到微处理器。
如图2所示，一个抽油烟机系统控制线路板通过一个定制的接口的外围电路和协议设置信息发送到电机控制器。电机控制器包括一个微处理器——单片机或DSP数字信号处理器，风机电机转子上有永磁体，在定子侧或槽中有多相绕组。鼓风机里面的风轮安装在风机电机的输出轴上，风机电机旋转带动风轮转动产生的气流以一定的速度。
如图6、图7所示，假设风机电机是3相无刷直流永磁同步电机，转子位置测量电路614一般采用3个霍尔传感器，3个霍尔传感器分别检测一个360度电角度周期的转子位置，每转过120度电角度改变一次定子组件12的各相线圈绕组的通电，形成3相6步控制模式。交流输入(AC INPUT)经过由二级管D7、D8、D9、D10组成的全波整流电路后，在电容C1的一端输出直流母线电压Vbus，直流母线电压Vbus与输入交流电压有关，交流输入(AC INPUT)的电压确定后，3相绕组的线电压UP是PWM斩波输出电压，UP＝Vbus＊w，w是微处理器输入到逆变电路的PWM信号的占空比，改变线电压UP可以改变直流母线电流Ibus，逆变电路由电子开关管Q1、Q2、Q3、Q4、Q5、Q6组成，电子开关管Q1、Q2、Q3、Q4、Q5、Q6的控制端分别由微处理器输出的6路PWM信号(P1、P2、P3、P4、P5、P6)控制，逆变电路还连接电阻R1用于检测母线电流Ibus，母线电流检测电路将电阻R1的检测母线电流Ibus转换后传送到微处理器。
如图8所示，抽油烟机控制线路板100与电机控制线路板621通过5个连接端口相互连接通信，这5个连接端口分别是：端口GND、端口VSP、端口VDC、端口VCC和端口FG。抽油烟机控制线路板100与电机控制线路板621集成到一个线路板上。
如图9所示，电机控制线路板上设置报警电路，当检测风量低于设定风量时，微处理器输出信号到报警电路触发报警。所述的报警电路是声光报警电路， 主要包括电阻R1、R2，发光二极管D1和蜂鸣器(speaker)。但报警电路还可以是具有蜂鸣器(speaker)的声音报警电路或者是具有发光二极管D1的光电报警电路，具体报警电路形式不限。所述的报警电路还可以设置在抽油烟机控制线路板100上，电路结构一样，在此不再赘述。
如图10所示，在上述报警电路的基础上还可以包括具有语音发声提醒功能的语音IC。

Claims (10)

  1. 一种抽油烟机系统，包括机壳、鼓风机、抽油烟机控制线路板，机壳上设置进风口、出风口、风道，所述的鼓风机和抽油烟机控制线路板安装在机壳里面，鼓风机包括风机电机和风轮，风轮由风机电机驱动，风机电机带动风轮转动使空气从进风口进入风道然后从出风口输出，所述的风机电机包括电机控制器和电机单体，所述的电机单体包括定子组件、转子组件和机壳组件，定子组件安装在机壳组件上，定子组件和转子组件磁耦合，电机控制器包括电机控制线路板，电机控制线路板布局有微处理器、逆变电路，微处理器控制逆变电路，逆变电路控制定子组件的各相线圈绕组的电流，其特征在于：风机电机是一台恒风量控制的永磁无刷直流电机，能根据不同的外部静压自动调节运行参数输出恒定风量。
  2. 根据权利要求1所述的一种抽油烟机系统，其特征在于：所述的抽油烟机控制线路板与电机控制线路板相互连接通信，抽油烟机控制线路板向风机电机的微处理器输入设定的风量参数。
  3. 根据权利要求2所述的一种抽油烟机系统，其特征在于：抽油烟机控制线路板与电机控制线路板集成到一个线路板。
  4. 根据权利要求1或2所述的一种抽油烟机系统，其特征在于：微处理器根据电机单体的运行参数来计算抽油烟机抽风量，当设定的风量参数与计算抽油烟机抽风量发生一定的偏差时，微处理器发出信号驱动报警电路报警。
  5. 根据权利要求4所述的一种抽油烟机系统，其特征在于：电机控制线路板上设置报警电路，报警电路是声音报警电路或者光电报警电路。
  6. 根据权利要求4所述的一种抽油烟机系统，其特征在于：抽油烟机控制线路板上设置报警电路。
  7. 根据权利要求6所述的一种抽油烟机系统，其特征在于：报警电路包括抽油烟机系统原有的液晶显示器，抽油烟机控制线路板收到微处理器输出报警信号后再输出信号到液晶显示器，利用文字或图案来提示风道堵塞。
  8. 根据权利要求5所述的一种抽油烟机系统，其特征在于：电机控制线路板上还布局有电源电路为部分电路供电。
  9. 根据权利要求5所述的一种抽油烟机系统，其特征在于：电机单体安装有检测转子位置的霍尔传感器，霍尔传感器检测转子位置信号并输入到微处理器。
  10. 根据权利要求9所述的一种抽油烟机系统，其特征在于：电机控制线路板上还布局有相电流检测电路或母线电流检测电路，相电流检测电路和母线电流检测电路分别检测逆变电路的相电流信号和母线电流信号并输入到微处理器。
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