WO2022222682A1 - 直流有刷电机转速的控制方法及系统、存储介质、吹风机 - Google Patents

直流有刷电机转速的控制方法及系统、存储介质、吹风机 Download PDF

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WO2022222682A1
WO2022222682A1 PCT/CN2022/082800 CN2022082800W WO2022222682A1 WO 2022222682 A1 WO2022222682 A1 WO 2022222682A1 CN 2022082800 W CN2022082800 W CN 2022082800W WO 2022222682 A1 WO2022222682 A1 WO 2022222682A1
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motor
waves
control
conduction
current
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PCT/CN2022/082800
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English (en)
French (fr)
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张亚东
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追觅创新科技(苏州)有限公司
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements 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
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/04Hot-air producers
    • A45D20/08Hot-air producers heated electrically
    • A45D20/10Hand-held drying devices, e.g. air douches
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/04Hot-air producers
    • A45D20/08Hot-air producers heated electrically
    • A45D20/10Hand-held drying devices, e.g. air douches
    • A45D20/12Details thereof or accessories therefor, e.g. nozzles, stands

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  • the invention relates to the field of rotational speed control of a hair dryer, in particular to a method for controlling the rotational speed of a DC brush motor.
  • the present invention provides a method for controlling the rotational speed of a DC brush motor.
  • the present invention stabilizes the rotational speed of the motor by controlling the conduction half-wave number of the motor in a plurality of alternating current half-waves.
  • the present invention provides a method for controlling the rotational speed of a DC brush motor, comprising the following steps:
  • control cycle of the motor in the control circuit of the hair dryer; wherein, the control cycle includes several AC half-waves;
  • the electric motor conduction half-wave number is the number of electric conduction half-waves in the plurality of AC half-waves .
  • the step further includes:
  • the determining the relationship between the conduction half-wave number of the motor and the power supply voltage includes: a heating wire in the control circuit is connected in series with the motor, and the power supply voltage is used to supply the heating wire to the power supply voltage.
  • the motor is powered; the formula of the motor conduction half-wave number n is:
  • Rm is the resistance of the heating wire
  • Rh is the resistance of the motor
  • Vms is the voltage across the motor
  • Ac is the power supply voltage of the control circuit
  • m is the half-cycle included in the control cycle of the motor. wave number; wherein, the voltage across the motor is the measured value.
  • the step further includes:
  • the temperature of the hair dryer is obtained through a temperature sensor to obtain the current power of the motor; wherein, the temperature sensor is used to detect the temperature at the air outlet of the hair dryer.
  • the steps include:
  • the method further includes:
  • a number of the electric motor conduction half-wave numbers are dispersed into the control period.
  • the invention also provides a speed control system of the DC brush motor, which includes a setting module and a control module; wherein,
  • the setting module is configured to set the control cycle of the motor in the control circuit of the hair dryer; wherein, the control cycle includes several AC half-waves;
  • the control module is configured to configure the conduction half-wave number of the motor in the several AC half-waves, so as to control the power supply voltage of the motor in the control circuit.
  • it also includes a dispersing module; wherein,
  • the dispersing module is configured to, after determining the number of the conduction half-wave numbers, perform dispersing a plurality of the electric motor conduction half-wave numbers into the control period;
  • the control module includes an acquisition unit and a judgment unit; wherein,
  • the obtaining unit is configured to obtain the temperature of the hair dryer through a temperature sensor to obtain the current power of the motor; wherein the temperature sensor is used to detect the temperature at the air outlet of the hair dryer;
  • the judging unit is configured to maintain the current number of the conduction half-wave numbers when the acquired power of the current motor is within a set threshold range;
  • the present invention also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to a method for controlling the rotational speed of a DC brush motor.
  • the present invention also provides a hair dryer, comprising a hair dryer body and an electronic device, the electronic device comprising: a processor; a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor,
  • the program includes a method for controlling the rotational speed of a DC brush motor; the blower body includes a motor for driving the fan blades to rotate.
  • the invention discloses a method and system for controlling the rotational speed of a DC brush motor, a storage medium, equipment, and a hair dryer.
  • the control method includes setting a control cycle of the motor in a control circuit of the hair dryer, and configuring the number of half-waves that the motor conducts in the control cycle. , to control the power supply voltage of the motor; this control method enables the hair dryer to maintain a relatively constant speed under different mains voltages, improves the stability of the fan speed, reduces the noise generated when the hair dryer is running, and prolongs the service life of the hair dryer.
  • FIG. 1 is a flowchart of a method for controlling the rotational speed of a DC brushed motor according to the present invention
  • FIG. 2 is a flowchart of an embodiment of a method for controlling the rotational speed of a DC brushed motor according to the present invention
  • FIG. 3 is a block diagram of a system for controlling the rotational speed of a brushed DC motor according to the present invention
  • FIG. 4 is an overall structural diagram of a hair dryer of the present invention.
  • the present invention provides a method for controlling the rotational speed of a DC brush motor, as shown in Figure 1 and Figure 2, comprising the following steps:
  • the control cycle of the motor in the control circuit of the hair dryer wherein, the control cycle includes several AC half-waves.
  • the fan control principle is to control whether the fan circuit is turned on at the zero-crossing point of the commercial power to control the switch and speed of the fan; the minimum control accuracy is an AC half-wave.
  • one control cycle of the fan is set to include several AC half-waves, for example, one control cycle is set to have 80 AC half-waves.
  • the control circuit of the hair dryer includes a motor and a heating wire connected in series, wherein the constant power of the motor can be equivalent to a constant voltage across the motor because the motor resistance remains unchanged; the resistance of the heating wire in the control circuit is also considered to be fixed.
  • Vm represents the voltage across the motor
  • Rh is the resistance of the motor
  • Rm is the resistance of the heating wire
  • Ac is the mains voltage, that is, the power supply voltage of the motor.
  • Vm represents the voltage across the motor
  • Rh is the resistance of the motor
  • Rm is the resistance of the heating wire
  • Vm/80 is the output voltage of the motor on each AC half-wave.
  • the standard speed of the motor is measured at a voltage of 220V, and the corresponding voltage across the motor is Vms; it should be understood that the voltage across the motor can be obtained through real-time detection to obtain the voltage value, that is, the voltage value is a constant.
  • Vms is the voltage at both ends of the motor
  • Rh is the resistance of the motor
  • Rm is the resistance of the heating wire
  • Ac is the mains voltage, that is, the power supply voltage of the motor
  • n is the number of conduction half-waves of the fan in 80 half-wave cycles.
  • m is the number of AC half-waves included in one control cycle.
  • Vms is the voltage value detected in real time, so the value is a constant, and the resistance of the motor and the heating wire are all fixed values, so only n and Ac are variable values in this formula.
  • the value of Ac is stabilized by adjusting and controlling the value of n, that is, by adjusting and controlling the number of conduction half-waves in one control cycle to stabilize the mains voltage, that is, the power supply voltage value of the motor, so as to stabilize the rotational speed of the fan. Reduce the noise produced by the blower when it is running.
  • m is the half-wave number in one control cycle. After it is set in step S1, it will be uniformly controlled in accordance with the value set in step S1 in subsequent cycles, and will not change; therefore, in the above formula where m is also a constant.
  • the temperature of the hair dryer is obtained through a temperature sensor to obtain the power of the current motor, and the number of half-waves in which the motor is turned on in several half-waves is determined according to the current power of the motor; wherein, the temperature sensor is preferably used to detect the power of the hair dryer. temperature at the air outlet.
  • the power of the motor can also be obtained in other ways, such as direct detection by a detection instrument, etc., which are all within the protection scope of the present invention.
  • the motor of the hair dryer When the temperature at the air outlet detected by the temperature sensor is too high, the motor of the hair dryer will reduce its power; on the contrary, when the temperature at the air outlet is low, the motor of the hair dryer will increase its power. Therefore, the power of the motor of the blower has a corresponding relationship with the temperature of the air outlet detected by the temperature sensor. Specifically, the temperature sensor feeds back the detected temperature to the MCU control unit, the MCU processes the received temperature data, and the MCU obtains the power of the motor corresponding to the received temperature data.
  • step S2 it also includes steps:
  • the n value in step S2 is dispersed into the control period, that is, m half-waves.
  • the n conduction half-wave numbers can be uniformly distributed into the m half-waves; as an alternative, the n conduction half-wave numbers can also be randomly distributed into the m half-waves.
  • the present invention also provides a speed control system of a DC brush motor, as shown in FIG. 3 , including a setting module and a control module; wherein,
  • the setting module is configured to set the control cycle of the motor in the control circuit of the hair dryer; wherein, the control cycle includes several AC half-waves;
  • the control module is configured to configure the conduction half-wave number of the motor in the several AC half-waves, so as to control the power supply voltage of the motor in the control circuit.
  • it also includes a dispersing module; wherein,
  • the dispersing module is configured to, after determining the number of the conduction half-wave numbers, perform dispersing a plurality of the electric motor conduction half-wave numbers into the control period;
  • the control module includes an acquisition unit and a judgment unit; wherein,
  • the obtaining unit is configured to obtain the temperature of the hair dryer through a temperature sensor to obtain the current power of the motor; wherein the temperature sensor is used to detect the temperature at the air outlet of the hair dryer;
  • the judging unit is configured to maintain the current number of the conduction half-wave numbers when the acquired power of the current motor is within a set threshold range;
  • the present invention also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to a method for controlling the rotational speed of a DC brush motor.
  • the present invention also provides a hair dryer, as shown in FIG. 4 , comprising a hair dryer body 100 and an electronic device, wherein the electronic device includes: a processor; a memory; and a program, wherein the program is stored in the memory and used by Configured to be executed by a processor, the program includes a method for executing a speed control method of a DC brush motor; the blower body 100 includes a motor 130 for driving the fan blades to rotate.
  • the hair dryer body 100 includes a motor 130, a heating wire 120, a fan blade 140 driven by the motor 130, and a casing.
  • the motor 130 is used to drive the fan blade 140 to rotate.
  • a temperature sensor 160 is provided at the air outlet 110 of the casing, and the temperature sensor 160 is used for The temperature at the air outlet 110 is detected, and the selection switch 150 is used to adjust the operation mode of the blower.
  • the invention discloses a method and system for controlling the rotational speed of a DC brush motor, a storage medium, equipment, and a hair dryer.
  • the control method includes setting a control cycle of the motor in a control circuit of the hair dryer, and configuring the number of half-waves that the motor conducts in the control cycle. , to control the power supply voltage of the motor; this control method enables the hair dryer to maintain a relatively constant speed under different mains voltages, improves the stability of the fan speed, reduces the noise generated when the hair dryer is running, and prolongs the service life of the hair dryer.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

本发明提供一种直流有刷电机转速的控制方法,该方法通过设定吹风机的控制电路中电机的控制周期;配置若干交流半波中电机导通半波数,以控制控制电路中电机的供电电压。本发明提供一种直流有刷电机转速的控制系统、存储介质、吹风机。本发明的控制方法包括设定吹风机的控制电路中电机的控制周期,通过配置控制周期中电机导通半波数,以控制电机的供电电压;该控制方法使得吹风机在不同的市电电压下维持一个比较恒定的转速,提高出风机转速的稳定性,降低吹风机运行时候产生的噪声同时延长吹风机的使用寿命。

Description

直流有刷电机转速的控制方法及系统、存储介质、吹风机
本公开要求如下专利申请的优先权:于2021年04月19日提交中国专利局、申请号为202110420195.5、发明名称为“直流有刷电机转速的控制方法及系统、存储介质、吹风机”的中国专利申请;上述专利申请的全部内容通过引用结合在本公开中。
技术领域
本发明涉及吹风机转速控制领域,尤其涉及一种直流有刷电机转速的控制方法。
背景技术
目前,现有大部分有刷吹风机无法根据市电电压来调整转速,会根据市电同步而有比较大的转速变化。市电电压越高转速越高,市电电压越低转速越低,无法让转速比较好的恒定在一定范围。当市电电压高于正常对应转速偏高,长时间的工作会降低电机的使用寿命,噪声也会明显提高。
发明内容
为了克服现有技术的不足,本发明提供一种直流有刷电机转速的控制方法。
本发明通过控制电机在多个交流半波中的导通半波数,以稳定电机的转速。
本发明提供一种直流有刷电机转速的控制方法,包括如下步骤:
设定吹风机的控制电路中电机的控制周期;其中,所述控制周期包括若 干交流半波;
配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压;其中,所述电机导通半波数为所述若干交流半波中电机导通的半波数量。
优选地,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压中,还包括:
确定所述电机导通半波数与所述供电电压的关系;根据二者的关系配置所述若干交流半波中的电机导通半波数的数量。
优选地,所述确定所述电机导通半波数与所述供电电压的关系,包括:所述控制电路中的发热丝与所述电机串联,所述供电电压用于给所述发热丝与所述电机供电;所述电机导通半波数n的公式为:
Figure PCTCN2022082800-appb-000001
其中,Rm为所述发热丝的电阻,Rh为所述电机的电阻,Vms为所述电机两端的电压,Ac为所述控制电路的供电电压,m为所述电机的控制周期中包含的半波数;其中,所述电机两端的电压为实测值。
优选地,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压中,还包括:
通过温度传感器获取吹风机的温度,以获取当前电机的功率;其中,所述温度传感器用于检测吹风机的出风口处的温度。
优选地,在步骤通过温度传感器获取吹风机的温度,以获取当前电机的功率中,包括:
当获取的所述当前电机的功率在设定阈值范围内,则维持当前的所述导通半波数的数量;
当获取的所述当前电机的功率大于设定阈值范围时,则降低所述导通半波数的数量;
当获取的当前电机的功率小于设定阈值范围时,则升高所述导通半波数的数量。
优选地,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压之后,还包括:
在确定所述导通半波数的数量后,将若干个所述电机导通半波数分散至所述控制周期中。
本发明还提供一种直流有刷电机转速的控制系统,包括设定模块与控制模块;其中,
所述设定模块,被配置用于设定吹风机的控制电路中电机的控制周期;其中,所述控制周期包括若干交流半波;
所述控制模块,被配置用于配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压。
优选地,还包括分散模块;其中,
所述分散模块,被配置用于在确定所述导通半波数的数量后,执行将若干个所述电机导通半波数分散至所述控制周期中;
所述控制模块包括获取单元与判断单元;其中,
所述获取单元,被配置用于通过温度传感器获取吹风机的温度,以获取当前电机的功率;其中,所述温度传感器用于检测吹风机的出风口处的温度;
所述判断单元,被配置用于当获取的所述当前电机的功率在设定阈值范围内,则维持当前的所述导通半波数的数量;
当获取的所述当前电机的功率大于设定阈值范围时,则降低所述导通半波数的数量;
当获取的当前电机的功率小于设定阈值范围时,则升高所述导通半波数的数量。
本发明还提供一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行一种直流有刷电机转速的控制方法。
本发明还提供一种吹风机,包括吹风机本体与电子设备,所述电子设备包括:处理器;存储器;以及程序,其中所述程序被存储在所述存储器中,并且被配置成由处理器执行,所述程序包括用于执行一种直流有刷电机转速的控制方法;所述吹风机本体包括用于驱动风叶转动的电机。
相比现有技术,本发明的有益效果在于:
本发明公开了一种直流有刷电机转速的控制方法及系统、存储介质、设备、吹风机,该控制方法包括设定吹风机的控制电路中电机的控制周期,通过配置控制周期中电机导通半波数,以控制电机的供电电压;该控制方法使得吹风机在不同的市电电压下维持一个比较恒定的转速,提高出风机转速的稳定性,降低吹风机运行时候产生的噪声同时延长吹风机的使用寿命。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为本发明的一种直流有刷电机转速的控制方法的流程图;
图2为本发明的一种直流有刷电机转速的控制方法的一个实施例的流程图;
图3为本发明的一种直流有刷电机转速的控制系统的模块图;
图4为本发明的一种吹风机的整体结构图。
具体实施方式
下面,结合附图以及具体实施方式,对本发明做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
本发明提供一种直流有刷电机转速的控制方法,如图1、图2所示,包括如下步骤:
S1、设定吹风机的控制电路中电机的控制周期;其中,控制周期包括若干交流半波。在一个实施例中,风机控制原理是控制风机电路在市电过零点是否导通来控制风机的开关与转速大小;最小的控制精度为一个交流半波。为了精确的调整风机转速,设定风机的一个控制周期包括若干交流半波,比如:一个控制周期设置有80个交流半波。
S2、配置若干交流半波中电机导通半波数,以控制控制电路中电机的供电电压;其中,所述电机导通半波数为所述若干交流半波中电机导通的半波数量。在一个实施例中,确定所述电机导通半波数与供电电压的关系;根据二者的关系配置若干交流半波中的电机导通半波数的数量。具体的,吹风机的控制电路包括由电机与一个发热丝串联,其中,电机的恒功率,由于电机电阻不变,可以等效为电机两端电压不变;该控制电路中的发热丝的电阻也认为是固定不变的。
根据控制电路我们得出电机两端电压与交流的关系公式:
电机两端电压=供电电压*电机电阻/(电机电阻+发热丝电阻),通过公式表达如下:
Figure PCTCN2022082800-appb-000002
其中,Vm代表电机两端的电压,Rh为电机的电阻,Rm为发热丝电阻,Ac为市电电压即电机的供电电压。
比如:吹风机的控制周期设置有80个交流半波,则对应的每个交流半波 在电机上的输出电压的公式为:
Figure PCTCN2022082800-appb-000003
其中,Vm代表电机两端的电压,Rh为电机的电阻,Rm为发热丝电阻,Vm/80为电机在每个交流半波上的输出电压。
需要说明的是:电机的标准转速在220V电压下测得,对应的电机两端电压为Vms;应当理解为,电机两端的电压可通过实时检测获得电压值即电压值为一个常数。
具体地的表达电机两端的电压的公式为:
Figure PCTCN2022082800-appb-000004
其中,Vms为电机两端的电压,Rh为电机的电阻,Rm为发热丝电阻,Ac为市电电压即电机的供电电压,n为风机在80个半波周期内的导通半波数。
需要说明的是,吹风机的控制电路中电机的控制周期包括的交流半波的数量可根据具体情况进行设定,在上述公式中通过m来表达,公式如下:
Figure PCTCN2022082800-appb-000005
其中,m为一个控制周期内包括的交流半波的数量。
将上述公式进行转换下,公式如下:
Figure PCTCN2022082800-appb-000006
其中,Vms为实时检测的电压值故此数值为一个常数,电机的电阻、发热丝电阻都为定值,故在该公式中只有n与Ac为变值。在本实施例中,通过调节控制n的值以稳定Ac的值,即通过调节控制一个控制周期中的导通半波数的数量来稳定市电电压即电机的供电电压值,以稳定风机的转速降低吹风机运行时产生的噪声。
需要说明的是:m即一个控制周期内的半波数,在步骤S1中设定以后, 在后续的各个周期中将统一按照步骤S1中设定的值进行控制,不发生改变;故在上述公式中m也是一个常数。
在一个实施例中,通过温度传感器获取吹风机的温度,以获取当前电机的功率,根据当前电机的功率来确定若干半波中的电机导通半波数;其中,优选地温度传感器用于检测吹风机的出风口处的温度。需要说明的是,还可以通过其他方式获取电机的功率,比如直接通过检测仪器检测等,都在本发明的保护范围内。
具体地,当获取的当前电机的功率在设定阈值范围内,则维持当前的导通半波数的数量;
当获取的当前电机的功率大于设定阈值范围时,则降低导通半波数的数量;
当获取的当前电机的功率小于设定阈值范围时,则升高导通半波数的数量。
当温度传感器检测到的出风口处的温度过高,则吹风机的电机会降低其功率;相反当出风口处的温度较低,则吹风机的电机会升高其功率。故吹风机的电机的功率与温度传感器检测到出风口的温度具有对应的关系。具体的,温度传感器将检测的温度反馈给MCU控制单元,MCU根据接收的温度数据进行处理,MCU获取接收的温度数据所对应的电机的功率,当获取的当前的电机功率大于设定阈值范围,则降低导通半波数的数量即电机功率;当获取的当前的电机功率小于设定阈值范围,则升高导通半波数的数量;当获取的当前的电机功率在设定阈值范围时,则维持导通半波数的数量。
在步骤S2之后还包括步骤:
S3、在确定导通半波数的数量后,将若干个电机导通半波数分散至控制周期中。在确定步骤S2中的n值后,将n值分散至控制周期即m个半波中。具体地,分散的方式可选择将n个导通半波数均匀分布至m个半波中;作为可替换的,也可将n个导通半波数随机分布至m个半波中。
需要说明的是:在一个控制周期中,控制的交流半波的数量越大,则电机的电压控制的越稳定;但同时控制资源占用比也比较大。故在一个控制周期内根据具体情况选择合适的交流半波数量。
本发明还提供一种直流有刷电机转速的控制系统,如图3所示,包括设定模块与控制模块;其中,
所述设定模块,被配置用于设定吹风机的控制电路中电机的控制周期;其中,所述控制周期包括若干交流半波;
所述控制模块,被配置用于配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压。
优选地,还包括分散模块;其中,
所述分散模块,被配置用于在确定所述导通半波数的数量后,执行将若干个所述电机导通半波数分散至所述控制周期中;
所述控制模块包括获取单元与判断单元;其中,
所述获取单元,被配置用于通过温度传感器获取吹风机的温度,以获取当前电机的功率;其中,所述温度传感器用于检测吹风机的出风口处的温度;
所述判断单元,被配置用于当获取的所述当前电机的功率在设定阈值范围内,则维持当前的所述导通半波数的数量;
当获取的所述当前电机的功率大于设定阈值范围时,则降低所述导通半波数的数量;
当获取的当前电机的功率小于设定阈值范围时,则升高所述导通半波数的数量。
本发明还提供一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行一种直流有刷电机转速的控制方法。
本发明还提供一种吹风机,如图4所示,包括吹风机本体100与电子设备,所述电子设备包括:处理器;存储器;以及程序,其中所述程序被存储在所述存储器中,并且被配置成由处理器执行,所述程序包括用于执行一种 直流有刷电机转速的控制方法;所述吹风机本体100包括用于驱动风叶转动的电机130。
吹风机本体100包括电机130、发热丝120、电机130驱动的风叶140、壳体,电机130用于驱动风叶140旋转,壳体的出风口110处设置有温度传感器160,温度传感器160用于检测出风口110处的温度,选择开关150用于调节吹风机的运行模式。
本发明公开了一种直流有刷电机转速的控制方法及系统、存储介质、设备、吹风机,该控制方法包括设定吹风机的控制电路中电机的控制周期,通过配置控制周期中电机导通半波数,以控制电机的供电电压;该控制方法使得吹风机在不同的市电电压下维持一个比较恒定的转速,提高出风机转速的稳定性,降低吹风机运行时候产生的噪声同时延长吹风机的使用寿命。
以上,仅为本发明的较佳实施例而已,并非对本发明作任何形式上的限制;凡本行业的普通技术人员均可按说明书附图所示和以上而顺畅地实施本发明;但是,凡熟悉本专业的技术人员在不脱离本发明技术方案范围内,利用以上所揭示的技术内容而做出的些许更动、修饰与演变的等同变化,均为本发明的等效实施例;同时,凡依据本发明的实质技术对以上实施例所作的任何等同变化的更动、修饰与演变等,均仍属于本发明的技术方案的保护范围之内。

Claims (10)

  1. 一种直流有刷电机转速的控制方法,其特征在于,包括如下步骤:
    设定吹风机的控制电路中电机的控制周期;其中,所述控制周期包括若干交流半波;
    配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压;其中,所述电机导通半波数为所述若干交流半波中电机导通的半波数量。
  2. 如权利要求1所述的一种直流有刷电机转速的控制方法,其特征在于,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压中,还包括:
    确定所述电机导通半波数与所述供电电压的关系;根据二者的关系配置所述若干交流半波中的电机导通半波数的数量。
  3. 如权利要求2所述的一种直流有刷电机转速的控制方法,其特征在于,所述确定所述电机导通半波数与所述供电电压的关系,包括:
    所述控制电路中的发热丝与所述电机串联,所述供电电压用于给所述发热丝与所述电机供电;所述电机导通半波数n的公式为:
    Figure PCTCN2022082800-appb-100001
    其中,Rm为所述发热丝的电阻,Rh为所述电机的电阻,Vms为所述电机两端的电压,Ac为所述控制电路的供电电压,m为所述电机的控制周期中包含的半波数;其中,所述电机两端的电压为实测值。
  4. 如权利要求2所述的一种直流有刷电机转速的控制方法,其特征在于,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压中,还包括:
    通过温度传感器获取吹风机的温度,以获取当前电机的功率;其中,所述温度传感器用于检测吹风机的出风口处的温度。
  5. 如权利要求4所述的一种直流有刷电机转速的控制方法,其特征在于, 在步骤通过温度传感器获取吹风机的温度,以获取当前电机的功率中,包括:
    当获取的所述当前电机的功率在设定阈值范围内,则维持当前的所述导通半波数的数量;
    当获取的所述当前电机的功率大于设定阈值范围时,则降低所述导通半波数的数量;
    当获取的当前电机的功率小于设定阈值范围时,则升高所述导通半波数的数量。
  6. 如权利要求2所述的一种直流有刷电机转速的控制方法,其特征在于,在步骤配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压之后,还包括:
    在确定所述导通半波数的数量后,将若干个所述电机导通半波数分散至所述控制周期中。
  7. 一种直流有刷电机转速的控制系统,其特征在于,包括设定模块与控制模块;其中,
    所述设定模块,被配置用于设定吹风机的控制电路中电机的控制周期;其中,所述控制周期包括若干交流半波;
    所述控制模块,被配置用于配置所述若干交流半波中电机导通半波数,以控制所述控制电路中电机的供电电压。
  8. 如权利要求7所述的一种直流有刷电机转速的控制系统,其特征在于,还包括分散模块;其中,
    所述分散模块,被配置用于在确定所述导通半波数的数量后,执行将若干个所述电机导通半波数分散至所述控制周期中;
    所述控制模块包括获取单元与判断单元;其中,
    所述获取单元,被配置用于通过温度传感器获取吹风机的温度,以获取当前电机的功率;其中,所述温度传感器用于检测吹风机的出风口处的温度;
    所述判断单元,被配置用于当获取的所述当前电机的功率在设定阈值范 围内,则维持当前的所述导通半波数的数量;
    当获取的所述当前电机的功率大于设定阈值范围时,则降低所述导通半波数的数量;
    当获取的当前电机的功率小于设定阈值范围时,则升高所述导通半波数的数量。
  9. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于:所述计算机程序被处理器执行如权利要求1-6中任一项所述的方法。
  10. 一种吹风机,其特征在于,包括吹风机本体与电子设备,所述电子设备包括:处理器;存储器;以及程序,其中所述程序被存储在所述存储器中,并且被配置成由处理器执行,所述程序包括用于执行如权利要求1-6中任一项所述的方法;所述吹风机本体包括用于驱动风叶转动的电机。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011136471A2 (ko) * 2010-04-30 2011-11-03 주식회사 한울아이씨텍 에너지 분산 공급 방식의 전력 공급 제어 장치 및 방법
CN102522932A (zh) * 2011-11-30 2012-06-27 四川长虹电器股份有限公司 空调直流无刷电机系统及其转速控制方法
CN102846182A (zh) * 2012-09-05 2013-01-02 浙江苏泊尔家电制造有限公司 电炊具及其加热控制方法
CN105867450A (zh) * 2016-04-12 2016-08-17 广东美的厨房电器制造有限公司 烹饪设备及其控制方法
CN112994543A (zh) * 2021-04-19 2021-06-18 追创科技(苏州)有限公司 直流有刷电机转速的控制方法及系统、存储介质、吹风机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106705364B (zh) * 2016-12-28 2019-10-01 青岛海尔空调器有限总公司 空调器低温制冷工况下室外风机的控制方法和空调器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011136471A2 (ko) * 2010-04-30 2011-11-03 주식회사 한울아이씨텍 에너지 분산 공급 방식의 전력 공급 제어 장치 및 방법
CN102522932A (zh) * 2011-11-30 2012-06-27 四川长虹电器股份有限公司 空调直流无刷电机系统及其转速控制方法
CN102846182A (zh) * 2012-09-05 2013-01-02 浙江苏泊尔家电制造有限公司 电炊具及其加热控制方法
CN105867450A (zh) * 2016-04-12 2016-08-17 广东美的厨房电器制造有限公司 烹饪设备及其控制方法
CN112994543A (zh) * 2021-04-19 2021-06-18 追创科技(苏州)有限公司 直流有刷电机转速的控制方法及系统、存储介质、吹风机

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