WO2017114229A1 - 用于识别直流电机转子相位的方法、设备及家用电器 - Google Patents

用于识别直流电机转子相位的方法、设备及家用电器 Download PDF

Info

Publication number
WO2017114229A1
WO2017114229A1 PCT/CN2016/111047 CN2016111047W WO2017114229A1 WO 2017114229 A1 WO2017114229 A1 WO 2017114229A1 CN 2016111047 W CN2016111047 W CN 2016111047W WO 2017114229 A1 WO2017114229 A1 WO 2017114229A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase
motor
rotor
identified
resistor
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/CN2016/111047
Other languages
English (en)
French (fr)
Inventor
李益爱
骆建立
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.)
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing 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
Application filed by Midea Group Co Ltd, GD Midea Environment Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of WO2017114229A1 publication Critical patent/WO2017114229A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
    • H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings

Definitions

  • the present invention relates to the field of home appliances, and in particular to a method, device and household appliance for identifying a rotor phase of a DC motor.
  • FIG. 1 is a schematic structural view of a motor system used in the fan.
  • the motor system includes a DC power source 10, a control device 20, a DC motor 30, and a Hall element 40.
  • the control device 20 of the fan senses a position signal of the DC motor rotor through the Hall element 40, thereby controlling the start of the fan according to the position signal. , stop, brake, forward and reverse.
  • a DC motor equipped with a Hall element is costly, and the Hall element needs to be embedded inside the motor, which is difficult to assemble, and the motor casing is bulky.
  • the present invention provides a method for identifying a rotor phase of a DC motor, the method comprising: respectively detecting a back electromotive force Ua, Ub, Uc of a three-phase winding of a DC motor; and comparing the Ua, Ub, The relationship between Uc to identify the phase of the DC motor rotor.
  • the rotor phase is identified as 60-120°; in the case of Ub>Ua>Uc, the rotor phase is identified as 120-180°; in the case of Ub>Uc>Ua, the rotor phase is identified as 180 -240°; in the case of Uc>Ub>Ua, the rotor phase is identified to be 240-300°; and in the case of Uc>Ua>Ub, the rotor phase is identified to be 300-360°.
  • the back electromotive force Ua, Ub of the three-phase winding of the direct current motor can be respectively detected by three voltage detecting devices, Uc.
  • the present invention also provides an apparatus for identifying a rotor phase of a DC motor, the apparatus comprising: a voltage detecting device for detecting a back electromotive force Ua, Ub, Uc of a three-phase winding of the DC motor; and a phase identifying device, Used to compare the relationship between the Ua, Ub, Uc to identify the phase of the DC motor rotor.
  • the phase identification device is configured to: identify a rotor phase of 0-60° in the case of Ua>Uc>Ub; and identify a rotor phase of 60-120° in the case of Ua>Ub>Uc; >Ua>Uc, the rotor phase is identified as 120-180°; in the case of Ub>Uc>Ua, the rotor phase is identified as 180-240°; in the case of Uc>Ub>Ua, the rotor phase is identified as 240-300°; and in the case of Uc>Ua>Ub, the rotor phase is identified to be 300-360°.
  • the voltage detecting device includes three voltage detecting devices for detecting the back electromotive forces Ua, Ub, and Uc, respectively.
  • the circuit structure of each of the three voltage detecting devices is the same, and the first voltage detecting device of the three voltage detecting devices includes: a resistor R1, a resistor R2, and a resistor R3, wherein the resistor R1 and One end of the series circuit formed by connecting resistors R2 in series is connected to one phase winding of the DC motor, and the other end is grounded.
  • One end of the resistor R3 is connected between the resistor R1 and the resistor R2, and the other end is used as an output terminal to calculate the inverse of the phase winding.
  • Ua To the electromotive force Ua.
  • the first voltage detecting device further includes a diode ZD1 and a capacitor C1.
  • the diode ZD1 and the capacitor C1 are respectively connected to the two ends of the resistor R3, and the other ends are respectively grounded.
  • the present invention also provides a home appliance comprising: a DC motor; the above-mentioned device for identifying a rotor phase of a DC motor; and control means for, according to the device for identifying a rotor phase of a DC motor The identified DC motor rotor phase controls the rotation of the DC motor.
  • the household appliance can be a fan.
  • the three-phase back electromotive force detecting circuit of the invention has the advantages of simple structure, convenience and low cost.
  • FIG. 1 is a schematic structural view of a conventional motor system
  • FIG. 2 is a schematic structural view of another embodiment of a conventional motor system
  • FIG. 3 is a schematic structural view of a motor system provided in a household appliance provided by the present invention.
  • FIG. 4 is a circuit diagram showing a motor drive circuit and a voltage detecting device
  • Figure 5 is a schematic diagram showing the relationship between the back electromotive forces Ua, Ub, Uc of the three-phase winding of the DC motor and the phase of the rotor.
  • FIG. 3 is a schematic structural view of a motor system provided in a household appliance provided by the present invention.
  • the present invention also provides a motor system disposed in a home appliance (for example, a fan), the system comprising: a DC power source 10, a DC motor 30, an apparatus 100 for identifying a rotor phase of the DC motor, and The identified rotor phase controls the control device 20 of the direction of rotation of the DC motor.
  • the control device 20 can first supply power to the DC motor 30 by using the DC power source 10 to activate the DC motor 30; and then use the device 100 for identifying the rotor phase of the DC motor to identify the rotor phase of the DC motor, and according to This phase controls the direction of rotation of the DC motor 10.
  • This solution eliminates the need for a Hall device to quickly identify the phase of the DC motor rotor and quickly adjust the fan's direction of operation.
  • the device 100 for identifying the rotor phase of the DC motor may include: a voltage detecting device 110 for detecting back electromotive forces Ua, Ub, Uc of the three-phase winding of the DC motor; and a phase identifying device 120 for The Ua, Ub, Uc are compared to identify the phase of the DC motor rotor.
  • the phase identification device 120 may identify that the rotor phase is 0-60° in the case of Ua>Uc>Ub; and identify the rotor phase as 60-120° in the case of Ua>Ub>Uc; In the case of Ub>Ua>Uc, the rotor phase is identified as 120-180°; in the case of Ub>Uc>Ua, the rotor phase is identified as 180-240°; in the case of Uc>Ub>Ua Next, the rotor phase is identified as 240-300°; and in the case of Uc>Ua>Ub, the rotor phase is identified to be 300-360°.
  • Fig. 4 is a circuit diagram showing a motor drive circuit and a voltage detecting device.
  • the DC motor driver 200 can output a three-phase current to the DC motor 30 according to the PWM signal of the control device 20 to drive the DC motor 30 to operate.
  • the present invention provides three voltage detecting devices for the three-phase windings of the DC motor 30 to detect the back electromotive forces Ua, Ub, Uc of the three-phase windings.
  • the circuit structure of the three voltage detecting devices can be as shown in FIG. 4, the motor is equal to a generator, and the back electromotive force is the three-phase electromotive force of the generator.
  • the voltage detecting device for detecting the back electromotive force Ua includes: a resistor R1, a resistor R2, and a resistor R3, wherein a series circuit formed by connecting the resistor R1 and the resistor R2 in series is connected to one phase winding of the DC motor, and One end is grounded, and one end of the resistor R3 is connected between the resistor R1 and the resistor R2, and the other end is used as an output terminal to calculate the back electromotive force Ua of the phase winding.
  • the voltage Ua is divided by the resistor R1 and the resistor R2, and satisfies the following formula:
  • Uar is the voltage of the output terminal
  • R1 and R2 are resistance values of the resistor R1 and the resistor R2, respectively.
  • the voltage Ua can be calculated by the following formula:
  • phase identification device and the control device of the present invention can be implemented as a control chip (for example, a single chip microcomputer).
  • the voltage Uar in FIG. 4 can be directly input to the AD port of the control chip by the control.
  • the chip calculates the back electromotive force Ua based on the voltage Uar and the above formula (2).
  • the voltage detecting device for detecting the back electromotive force Ua further includes: a diode ZD1 and a capacitor C1, wherein the diode ZD1 and the capacitor C1 are respectively connected to both ends of the resistor R3, and the other ends are respectively grounded.
  • the output voltage Uar of the output terminal can be maintained stable.
  • FIG. 5 also shows a schematic diagram of the relationship between the back electromotive forces Ua, Ub, Uc of the three-phase winding of the DC motor and the phase of the rotor.
  • the phase identification device can determine the specific phase of the rotor of the DC motor based on the detected magnitudes of the Ua, Ub, and Uc electromotive forces in combination with the above table or FIG.
  • the present invention also provides a method for identifying a rotor phase of a DC motor, the method comprising: detecting a back electromotive force Ua, Ub, Uc of the three-phase winding of the DC motor; and comparing the Ua, Ub, Uc to identify the phase of the DC motor rotor.
  • the phase of the rotor of the DC motor can be quickly recognized at the moment of starting the fan and the running direction of the fan can be quickly adjusted without using the Hall device.
  • the three-phase back electromotive force detecting circuit of the invention has the advantages of simple structure, convenience and low cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

一种用于识别直流电机（30）转子相位的方法、设备及家用电器，其可在风扇启动瞬间快速识别直流电机（30）转子的相位并能快速调整风扇的运转方向。该用于识别直流电机（30）转子相位的方法包括：检测直流电机（30）三相绕组的反向电动势Ua、Ub、Uc；以及比较Ua、Ub、Uc，以识别直流电机（30）转子的相位。

Description

用于识别直流电机转子相位的方法、设备及家用电器 技术领域
本发明涉及家电领域，具体地，涉及一种用于识别直流电机转子相位的方法、设备及家用电器。
背景技术
随着技术的发展，直流电机广泛应用于风扇产品，但在现有的采用直流电机的风扇中，基本上采用的都是具有霍尔元件的直流电机。图1为该风扇所采用的电机系统的结构示意图。该电机系统包含直流电源10、控制装置20、直流电机30以及霍尔元件40，该风扇的控制装置20通过霍尔元件40来感应直流电机转子的位置信号，从而根据该位置信号控制风扇的启动、停止、制动、正反转。然而，配备霍尔元件的直流电机成本较高，且霍尔元件需要嵌入电机内部，不易装配，同时电机外壳体积大。
另外，目前还存在未采用具有霍尔元件的直流电机的风扇，其电机系统的结构可如图2所示。对于该类风扇而言，每次风扇启动均需要等待电机运转达到一定的速度之后，控制装置20才能识别直流电机转子的相位，导致风扇启动时会反转一定角度后再正转，且反转角度大小不一致。
发明内容
本发明的目的是提供一种用于识别直流电机转子相位的方法、设备及家用电器，其可在风扇启动瞬间快速识别直流电机转子的相位并能快速调整风扇的运转方向。
为了实现上述目的，本发明提供一种用于识别直流电机转子相位的方法，该方法包括：分别检测直流电机三相绕组的反向电动势Ua、Ub、Uc；以及通过比较所述Ua、Ub、Uc之间的关系，以识别所述直流电机转子的相位。
其中，所述通过比较所述Ua、Ub、Uc之间的关系以识别所述直流电机转子的相位包括：在Ua>Uc>Ub的情况下，识别转子相位为0-60°；在Ua>Ub>Uc的情况下，识别转子相位为60-120°；在Ub>Ua>Uc的情况下，识别转子相位为120-180°；在Ub>Uc>Ua的情况下，识别转子相位为180-240°；在Uc>Ub>Ua的情况下，识别转子相位为240-300°；以及在Uc>Ua>Ub的情况下，识别转子相位为300-360°。
并且，可通过三个电压检测装置分别检测直流电机三相绕组的反向电动势Ua、Ub、 Uc。
相应地，本发明还提供一种用于识别直流电机转子相位的设备，该设备包括：电压检测装置，用于检测直流电机三相绕组的反向电动势Ua、Ub、Uc；以及相位识别装置，用于比较所述Ua、Ub、Uc之间的关系，以识别所述直流电机转子的相位。
其中，所述相位识别装置用于：在Ua>Uc>Ub的情况下，识别转子相位为0-60°；在Ua>Ub>Uc的情况下，识别转子相位为60-120°；在Ub>Ua>Uc的情况下，识别转子相位为120-180°；在Ub>Uc>Ua的情况下，识别转子相位为180-240°；在Uc>Ub>Ua的情况下，识别转子相位为240-300°；以及在Uc>Ua>Ub的情况下，识别转子相位为300-360°。
其中，所述电压检测装置包含分别用于检测所述反向电动势Ua、Ub、Uc的三个电压检测装置。
其中，所述三个电压检测装置中的每个电压检测装置的电路结构相同，所述三个电压检测装置中的第一电压检测装置包含：电阻R1、电阻R2以及电阻R3，其中电阻R1与电阻R2相串联构成的串联电路一端连接所述直流电机的一相绕组，另一端接地，所述电阻R3一端连接在电阻R1与电阻R2之间，另一端作为输出端以计算该相绕组的反向电动势Ua。
其中，Ua＝[(R1+R2)/R2]*Uar，其中，Uar为所述输出端的电压，R1和R2分别为所述电阻R1及电阻R2的阻值。
其中，所述第一电压检测装置还包含：二极管ZD1及电容C1，该二极管ZD1及电容C1分别连接至所述电阻R3两端，另一端分别接地。
相应地，本发明还提供一种家用电器，该家用电器包含：直流电机；上述用于识别直流电机转子相位的设备；以及控制装置，用于根据所述的用于识别直流电机转子相位的设备所识别出的直流电机转子相位，控制所述直流电机的转动。
其中，该家用电器可为风扇。
通过上述技术方案，无需借助霍尔器件，可在风扇启动瞬间快速识别直流电机转子的相位并能快速调整风扇的运转方向。本发明的三相反向电动势检测电路结构简单、方便、成本低。
本发明的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实 施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1为现有的电机系统的结构示意图；
图2为现有的电机系统的另一实施方式的结构示意图；
图3为本发明提供的家用电器内设置的电机系统的结构示意图；
图4示出了电机驱动电路及电压检测装置的电路图；以及
图5为直流电机三相绕组的反向电动势Ua、Ub、Uc与转子所处相位的关系示意图。
附图标记说明
10   直流电源                         20    控制装置
30   直流电机                         40    霍尔元件
100     识别直流电机转子相位的设备    110 电压检测装置
120     相位识别装置                  ZD1～ZD3     二极管
R1～R9电阻                            200 直流电机驱动器
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
图3为本发明提供的家用电器内设置的电机系统的结构示意图。如图3所示，本发明还提供了家用电器(例如，风扇)内设置的电机系统，该系统包含：直流电源10、直流电机30、用于识别直流电机转子相位的设备100、以及根据所识别的转子相位控制所述直流电机转动方向的控制装置20。该控制装置20首先可利用所述直流电源10给所述直流电机30供电，以启动所述直流电机30；之后利用所述识别直流电机转子相位的设备100识别所述直流电机转子相位，并根据该相位来控制所述直流电机10的转动方向。该方案无需借助霍尔器件，可在风扇启动瞬间快速识别直流电机转子的相位并能快速调整风扇的运转方向。
其中，所述用于识别直流电机转子相位的设备100可包括：电压检测装置110，用于检测所述直流电机三相绕组的反向电动势Ua、Ub、Uc；以及相位识别装置120，用于比较所述Ua、Ub、Uc，以识别所述直流电机转子的相位。
具体而言，所述相位识别装置120可在Ua>Uc>Ub的情况下，识别转子相位为0-60°；在Ua>Ub>Uc的情况下，识别转子相位为60-120°；在Ub>Ua>Uc的情况下，识别转子相位为120-180°；在Ub>Uc>Ua的情况下，识别转子相位为180-240°；在Uc>Ub>Ua的情况 下，识别转子相位为240-300°；以及在Uc>Ua>Ub的情况下，识别转子相位为300-360°。
图4示出了电机驱动电路及电压检测装置的电路图。如图4所示，直流电机驱动器200可根据控制装置20的PWM信号来输出三相电流至直流电机30，以驱动该直流电机30运转。本发明提供了分别针对直流电机30的三相绕组，采用了三个电压检测装置以对该三相绕组的反向电动势Ua、Ub、Uc进行检测。该三个电压检测装置的电路结构可如图4所示，电动机等于就是一个发电机，反向电动势就是发电机三相电动势。出于简化说明的目的，仅以用于检测反向电动势Ua的电压检测装置为例进行说明，其他两相的反向电动势Ub、Uc的电压检测装置与反向电动势Ua的电压检测装置的电路结构是相类似的，于此不再赘述。
其中，所述用于检测反向电动势Ua的电压检测装置包括：电阻R1、电阻R2以及电阻R3，其中电阻R1与电阻R2相串联构成的串联电路一端连接所述直流电机的一相绕组，另一端接地，所述电阻R3一端连接在电阻R1与电阻R2之间，另一端作为输出端以计算该相绕组的反向电动势Ua。在该电路中，电压Ua经过电阻R1与电阻R2分压，满足以下公式：
Uar＝[R2/(R1+R2)]*Ua         (1)
其中，Uar为所述输出端的电压，R1和R2分别为所述电阻R1及电阻R2的阻值。
之后，可通过以下公式计算出电压Ua：
Ua＝[(R1+R2)/R2]*Uar         (2)
类似的，另外两相的反向电动势Ub和Uc也可有类似的电压检测装置检测得到。需要说明的是，本发明的相位识别装置及控制装置可被实施为一控制芯片(例如，单片机)，例如，图4中的电压Uar可直接被输入至该控制芯片的AD口，由该控制芯片根据该电压Uar以及上述公式(2)计算反向电动势Ua。
优选地，所述用于检测反向电动势Ua的电压检测装置还包含：二极管ZD1及电容C1，该二极管ZD1及电容C1分别连接至所述电阻R3两端，另一端分别接地。藉此，可维持所述输出端的输出电压Uar稳定。
转子相位与反向电动势Ua、Ub、Uc之间的关系可如下表所示：
转子相位 三相反向电动势
0-60° Ua>Uc>Ub
60-120° Ua>Ub>Uc
120-180° Ub>Ua>Uc
180-240° Ub>Uc>Ua
240-300° Uc>Ub>Ua
300-360° Uc>Ua>Ub
另外，图5亦示出了直流电机三相绕组的反向电动势Ua、Ub、Uc与转子所处相位的关系示意图。相位识别装置可根据检测出的Ua、Ub、Uc电动势大小并结合上述表或图5来判断直流电机转子的具体相位。
相应地，本发明还提供了一种用于识别直流电机转子相位的方法，该方法包括：检测所述直流电机三相绕组的反向电动势Ua、Ub、Uc；以及比较所述Ua、Ub、Uc，以识别所述直流电机转子的相位。有关该方法的具体细节及益处，可参阅上述针对用于识别直流电机转子相位的设备的描述，于此不再赘述。
通过本发明的上述技术方案，无需借助霍尔器件，可在风扇启动瞬间快速识别直流电机转子的相位并能快速调整风扇的运转方向。本发明的三相反向电动势检测电路结构简单、方便、成本低。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (11)

  1. 一种用于识别直流电机转子相位的方法，该方法包括：
    分别检测直流电机三相绕组的反向电动势Ua、Ub、Uc；以及
    通过比较所述Ua、Ub、Uc之间的关系，以识别所述直流电机转子的相位。
  2. 根据权利要求1所述的方法，其特征在于，所述通过比较所述Ua、Ub、Uc之间的关系以识别所述直流电机转子的相位包括：
    在Ua>Uc>Ub的情况下，识别转子相位为0-60°；
    在Ua>Ub>Uc的情况下，识别转子相位为60-120°；
    在Ub>Ua>Uc的情况下，识别转子相位为120-180°；
    在Ub>Uc>Ua的情况下，识别转子相位为180-240°；
    在Uc>Ub>Ua的情况下，识别转子相位为240-300°；以及
    在Uc>Ua>Ub的情况下，识别转子相位为300-360°。
  3. 根据权利要求1或2所述的方法，其特征在于，通过三个电压检测装置分别检测直流电机三相绕组的反向电动势Ua、Ub、Uc。
  4. 一种用于识别直流电机转子相位的设备，其特征在于，该设备包括：
    电压检测装置，用于检测直流电机三相绕组的反向电动势Ua、Ub、Uc；以及
    相位识别装置，用于比较所述Ua、Ub、Uc之间的关系，以识别所述直流电机转子的相位。
  5. 根据权利要求4所述的设备，其特征在于，所述相位识别装置用于：
    在Ua>Uc>Ub的情况下，识别转子相位为0-60°；
    在Ua>Ub>Uc的情况下，识别转子相位为60-120°；
    在Ub>Ua>Uc的情况下，识别转子相位为120-180°；
    在Ub>Uc>Ua的情况下，识别转子相位为180-240°；
    在Uc>Ub>Ua的情况下，识别转子相位为240-300°；以及
    在Uc>Ua>Ub的情况下，识别转子相位为300-360°。
  6. 根据权利要求4或5所述的设备，其特征在于，所述电压检测装置包含分别用于检测所述反向电动势Ua、Ub、Uc的三个电压检测装置。
  7. 根据权利要求6所述的设备，其特征在于，所述三个电压检测装置中的每个电压检测装置的电路结构相同，所述三个电压检测装置中的第一电压检测装置包含：电阻R1、电阻R2以及电阻R3，其中电阻R1与电阻R2相串联构成的串联电路一端连接所述直流电机的一相绕组，另一端接地，所述电阻R3一端连接在电阻R1与电阻R2之间，另一端作为输出端以计算该相绕组的反向电动势Ua。
  8. 根据权利要求7所述的设备，其特征在于，
    Ua＝[(R1+R2)/R2]*Uar，
    其中，Uar为所述输出端的电压，R1和R2分别为所述电阻R1及电阻R2的阻值。
  9. 根据权利要求7所述的设备，其特征在于，所述第一电压检测装置还包含：二极管ZD1及电容C1，该二极管ZD1及电容C1分别连接至所述电阻R3两端，另一端分别接地。
  10. 一种家用电器，其特征在于，该家用电器包含：
    直流电机；
    根据权利要求4-9中任一项权利要求所述的用于识别直流电机转子相位的设备；以及
    控制装置，用于根据所述的用于识别直流电机转子相位的设备所识别出的直流电机转子相位，控制所述直流电机的转动。
  11. 根据权利要求10所述的家用电器，其特征在于，该家用电器为风扇。
PCT/CN2016/111047 2015-12-31 2016-12-20 用于识别直流电机转子相位的方法、设备及家用电器 Ceased WO2017114229A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201511033639.0A CN105490595A (zh) 2015-12-31 2015-12-31 一种用于识别直流电机转子相位的方法、设备及家用电器
CN201511033639.0 2015-12-31

Publications (1)

Publication Number Publication Date
WO2017114229A1 true WO2017114229A1 (zh) 2017-07-06

Family

ID=55677380

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/111047 Ceased WO2017114229A1 (zh) 2015-12-31 2016-12-20 用于识别直流电机转子相位的方法、设备及家用电器

Country Status (2)

Country Link
CN (1) CN105490595A (zh)
WO (1) WO2017114229A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105490595A (zh) * 2015-12-31 2016-04-13 广东美的环境电器制造有限公司 一种用于识别直流电机转子相位的方法、设备及家用电器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931353A (zh) * 2010-01-29 2010-12-29 梁伟 汽车空调风扇用无刷直流电机控制方法
CN102055392A (zh) * 2010-12-17 2011-05-11 北京控制工程研究所 一种无刷直流电机无传感器线反电势位置检测方法
CN103018541A (zh) * 2012-11-06 2013-04-03 中南林业科技大学 无刷直流电机反电势过零检测电路及检测方法
US9000703B2 (en) * 2012-11-28 2015-04-07 Stmicroelectronics Asia Pacific Pte. Ltd. Back EMF detection in a brushless DC motor using a virtual center tap circuit
CN105490595A (zh) * 2015-12-31 2016-04-13 广东美的环境电器制造有限公司 一种用于识别直流电机转子相位的方法、设备及家用电器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101262196B (zh) * 2008-04-29 2010-06-02 重庆大学 检测无位置传感器无刷直流电机转子位置的方法
CN103633904A (zh) * 2013-12-09 2014-03-12 国网上海市电力公司 无位置传感器的无刷直流电机控制方法及控制系统
CN104779850A (zh) * 2015-03-19 2015-07-15 四川长虹电器股份有限公司 一种反电动势检测电路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931353A (zh) * 2010-01-29 2010-12-29 梁伟 汽车空调风扇用无刷直流电机控制方法
CN102055392A (zh) * 2010-12-17 2011-05-11 北京控制工程研究所 一种无刷直流电机无传感器线反电势位置检测方法
CN103018541A (zh) * 2012-11-06 2013-04-03 中南林业科技大学 无刷直流电机反电势过零检测电路及检测方法
US9000703B2 (en) * 2012-11-28 2015-04-07 Stmicroelectronics Asia Pacific Pte. Ltd. Back EMF detection in a brushless DC motor using a virtual center tap circuit
CN105490595A (zh) * 2015-12-31 2016-04-13 广东美的环境电器制造有限公司 一种用于识别直流电机转子相位的方法、设备及家用电器

Also Published As

Publication number Publication date
CN105490595A (zh) 2016-04-13

Similar Documents

Publication Publication Date Title
US9479092B2 (en) Motor drive device
US9444377B2 (en) Motor drive control device
US9035582B2 (en) Motor driving apparatus and motor apparatus using the same
JP6217369B2 (ja) モータ制御装置及びモータ制御方法
US9306480B2 (en) Method for controlling ECM motor to output constant torque
CN105027420B (zh) 消耗电力削减装置
CN202840493U (zh) 电机、控制器及其功率驱动模块的过热保护电路
US9929682B2 (en) Motor control device
JP2008259339A (ja) モータ制御回路、ファンモータ
WO2015161530A1 (zh) 一种bldc电机故障状态反馈方法及应用bldc电机、空调系统
CN108075696B (zh) 电机及电机驱动电路
CN109463038B (zh) 电动工具及其无刷电机的驱动方法
WO2017114229A1 (zh) 用于识别直流电机转子相位的方法、设备及家用电器
CN109510405B (zh) 一种无感无刷电机及其防堵转控制方法
CN210672436U (zh) 卷发器控制装置及卷发器
EP2523341A2 (en) Rotor position detecting apparatus
JP3209222U (ja) 磁気センサ、集積回路及びモータ組立体
JP2013021866A (ja) インバータ装置
US20160036300A1 (en) Electronically commutated motor
JP3211277U (ja) 磁気センサ及びその動作段階の制御方法
CN115776094A (zh) 电动工具及其控制方法
CN106597205A (zh) 一种无刷电机接线状态检测方法、装置和驱动器
CN106487192A (zh) 电动工具
JP6311112B2 (ja) ブラシレスｄｃモータ
JP3209223U (ja) 磁気センサ、モータ組立体及び集積回路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16881018

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16881018

Country of ref document: EP

Kind code of ref document: A1