WO2014000481A1 - 一种直流无刷电机 - Google Patents

一种直流无刷电机 Download PDF

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Publication number
WO2014000481A1
WO2014000481A1 PCT/CN2013/073177 CN2013073177W WO2014000481A1 WO 2014000481 A1 WO2014000481 A1 WO 2014000481A1 CN 2013073177 W CN2013073177 W CN 2013073177W WO 2014000481 A1 WO2014000481 A1 WO 2014000481A1
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WIPO (PCT)
Prior art keywords
circuit
control board
microprocessor
motor
brushless
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PCT/CN2013/073177
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English (en)
French (fr)
Inventor
赵勇
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Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Application filed by Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Publication of WO2014000481A1 publication Critical patent/WO2014000481A1/zh
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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
    • H02K11/33—Drive circuits, e.g. power electronics
    • 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
    • H02P6/34—Modelling or simulation for control purposes

Definitions

  • the utility model relates to a direct current brushless motor.
  • the structure of the DC motor is as shown in Fig. 1, including the motor entity A and the motor controller B.
  • the motor body A includes a stator assembly, a rotor assembly and a casing
  • the motor controller B includes a control box and a control installed in the control box.
  • Board C the control box is installed at the bottom of the casing
  • the control board C is integrated with a power supply part, a microprocessor, an IGBT inverter, a motor operating parameter detecting circuit and an interface circuit. Due to the large number of circuit units and complicated structure, the inside of the control box The space is very limited, which brings 4 large difficulties to the layout and heat dissipation of wiring and electronic parts. The electromagnetic interference is also large. Some small-sized DC brushless motors have too little space in the control box to meet the requirements.
  • the object of the present invention is to provide a DC brushless motor.
  • the motor controller includes a control box, a main control board installed in the control box, and a sub-control board electrically connected to the main circuit board outside the control box, thereby
  • the circuit structure of the control board, wiring and electronic parts layout is easy, heat dissipation is good, and the scope of application is wider.
  • a brushless DC motor includes a motor body and a motor controller, the motor body includes a stator assembly, a rotor assembly and a casing, and the motor controller includes a control box, a main control board installed in the control box, and a main unit outside the control box
  • the auxiliary control board of the circuit board is electrically connected, and at least four connection ports are provided for the main control board and the sub control board, and the four connection ports include a DC bus voltage port, a DC low voltage power supply port, a ground port, and a half duplex asynchronous communication port.
  • the main control board described above includes a first microprocessor, an IGBT inverter unit, and motor operating parameters a detecting unit and a first single-wire half-duplex asynchronous communication circuit, the motor operating parameter detecting unit sends a signal to the first microprocessor, the first microprocessor outputs a signal to the IGBT inverter unit, and the IGBT inverter unit controls the stator assembly
  • the auxiliary control board comprises a second microprocessor, a second single-wire half-duplex asynchronous communication circuit and a power supply part, the power supply part supplies power to each part of the circuit, and the first microprocessor passes the first single-wire half-duplex asynchronous communication
  • the circuit, the second single-wire half-duplex asynchronous communication circuit establishes communication with the second microprocessor.
  • the sub-control board described above further includes a dial switch group, and the dial switch group inputs setting data to the second microprocessor.
  • the sub-control board described above is further provided with an input signal interface circuit, and the input signal interface circuit is connected to the input terminal of the second microprocessor.
  • the power supply part described above comprises an anti-electromagnetic interference filter circuit, a rectification circuit and a second DC/DC step-down circuit, the AC input is connected to the input end of the anti-electromagnetic interference filter circuit, and the output end of the anti-electromagnetic interference filter circuit is connected to the input end of the rectification circuit
  • the output end of the rectifier circuit is connected to the input end of the second DC/DC step-down circuit, the output end of the rectifier circuit obtains the DC bus voltage, and the output end of the second DC/DC buck circuit obtains the DC low voltage.
  • the main control board described above further includes a first DC/DC step-down circuit, the first DC/DC step-down circuit is connected to the DC low-voltage power supply port, and the first DC/DC step-down circuit output terminal provides a DC low voltage.
  • the motor operating parameter detecting unit described above includes a Hall element detecting module for detecting the rotor position and the rotational speed.
  • the motor controller comprises a control box, a main control board installed in the control box, and a sub-control board electrically connected to the main circuit board outside the control box, thereby
  • the main control board's circuit structure reduced size, easy layout of wiring and electronic parts, good heat dissipation, can use a small size DC brushless motor, a wider range of applications;
  • the board is provided with at least four connection ports, including DC bus voltage port, DC low voltage power supply port, ground port and half duplex asynchronous communication port, which can make the interface between the main control board and the sub control board become more compact. , the tube circuit.
  • the main control board comprises a first microprocessor, an IGBT inverter unit, a motor operating parameter detecting unit and a first single-wire half-duplex asynchronous communication circuit
  • the auxiliary control board comprises a second microprocessor and a second single-wire half-duplex asynchronous
  • the communication circuit and the power supply part supplies power to each part of the circuit
  • the first microprocessor establishes communication with the second microprocessor through the first single-wire half-duplex asynchronous communication circuit and the second single-wire half-duplex asynchronous communication circuit, and the circuit is distributed.
  • the auxiliary control board further includes a dial switch group, and the dial switch group inputs setting data to the second microprocessor, The second micro-processing controller reads the combined state set by the dial switch group, thereby determining the speed of each gear of the motor, the steering, the running control mode, and the working voltage of the motor, which is very convenient to use; 4) the auxiliary control board is also provided with an input signal interface.
  • the input signal interface circuit is connected to the input end of the second microprocessor to facilitate connection with the client system controller; 5)
  • a first microprocessor control board, a second sub-board microprocessor, the microprocessor accomplished according to two different jobs require different, flexible and convenient to use in combination, help to improve the operation speed and efficiency.
  • FIG. 1 is a schematic structural view of a conventional DC motor
  • Figure 2 is a schematic view of the structure of the present invention.
  • Figure 3 is a view showing the state of use of the present invention.
  • Figure 4 is a circuit block diagram of the main control board and the sub control board of the present invention.
  • FIG. 5 is a specific circuit connection diagram of a single-wire half-duplex asynchronous communication circuit.
  • a DC brushless motor including motor body 1 and motor controller, motor
  • the entity comprises a stator assembly, a rotor assembly and a casing
  • the motor controller comprises a control box 2, a main control board 3 mounted inside the control box 2, and a sub-control board 6 electrically connected to the main circuit board 3 outside the control box 2, the main
  • the control board 3 and the sub-control board 6 are provided with at least four connection ports including a DC bus voltage port Vdc, a DC voltage supply port Vccl, a ground port GND, and a half-duplex asynchronous communication port R/T.
  • the sub-control board 6 is inserted into the socket 6 through the plug 5 on the lead, and the socket 6 is electrically connected to the main control board 3, so that the main control board 3 is connected to the sub-control board 6.
  • the input signal interface circuit on the sub-control board is connected to the user system controller, and the second microprocessor on the sub-control board processes and converts the signal.
  • the main control board includes a first microprocessor, an IGBT inverter unit, a motor operating parameter detecting unit, and a first single-wire half-duplex asynchronous communication circuit, and the motor operating parameter detecting unit sends the signal to the first micro processing.
  • the first microprocessor outputs a signal to the IGBT inverter unit
  • the IGBT inverter unit controls the winding of the winding on the stator assembly
  • the auxiliary control board includes a second microprocessor, a second single-wire half-duplex asynchronous communication circuit, and a power supply.
  • the power supply part supplies power to each part of the circuit, and the first microprocessor establishes communication with the second microprocessor through the first single-wire half-duplex asynchronous communication circuit and the second single-wire half-duplex asynchronous communication circuit, and the secondary control board
  • the utility model further comprises a dial switch group, wherein the dial switch group inputs setting data to the second microprocessor, the auxiliary control board is further provided with an input signal interface circuit, and the input signal interface circuit is connected to the input end of the second microprocessor
  • the power supply part comprises an anti-electromagnetic interference filter circuit, a rectifier circuit and a second DC/DC step-down circuit, and the AC input is connected to the input end of the anti-electromagnetic interference filter circuit, and is resistant to electricity.
  • the output end of the interference filter circuit is connected to the input end of the rectifier circuit, the output end of the rectifier circuit is connected to the input end of the second DC/DC buck circuit, and the output end of the rectifier circuit obtains the DC bus voltage Vdc, and the second DC/DC buck circuit
  • the output terminal obtains DC low voltage Vccl, Vcc2, DC low voltage Vccl is 15V, provides driving voltage for IGBT inverter unit, DC low voltage Vcc2 is 5V, powers the microprocessor, and the main control board also includes a first DC/DC step-down circuit.
  • the first DC/DC step-down circuit is connected to the DC low voltage power supply port vccl,
  • the first DC/DC step-down circuit output terminal provides a DC low voltage Vcc2, and
  • the motor operating parameter detecting unit includes a Hall element detecting module for detecting the rotor position and the rotational speed.
  • the first microprocessor and the second microprocessor are a single chip MCU or a digital signal processor DSP.
  • the single-wire half-duplex asynchronous communication circuit includes a comparator chip IC601, Resistor Rl, resistor R2, resistor R3 and resistor R4, resistor R5, resistor R6, resistor R7 and resistor R8, the fourth pin of the comparator chip IC601 is grounded, the 8th pin is connected to the 15V power supply vccl, the resistor R3, and the resistor R6 are connected in series.
  • the two ends of the comparator chip IC601 are connected between the resistor R3 and the resistor R6, and the third pin and the seventh pin of the comparator chip IC601 are the TXD and RXD connection ports respectively and the microprocessor.
  • the MCU is connected, the resistor R1 and the resistor R5 are connected in series, and the two ends are respectively connected with 15V and ground.
  • the sixth pin of the comparator chip IC601 is connected between the resistor R1 and the resistor R5, and the fifth leg and the first leg of the comparator chip IC601 are connected in parallel.
  • One end of the resistor R8 is connected, and the other end of the resistor R8 is used as an R/T signal output port.
  • the two ends of the resistor R2 are respectively connected with a 15V power supply vccl and a first pin of the comparator chip IC601, and a resistor R4.
  • Vccl 15V power supply terminals are connected and the first comparator IC601 chip pin 3
  • both ends of the resistor R7 are connected to 15V power vccl and pin 7 of comparator IC601 chip.
  • the motor controller of the utility model comprises a control box, a main control board installed in the control box, and a sub-control board electrically connected to the main circuit board outside the control box, thereby recombining the circuit structure, wiring and electronic parts of the main control board
  • the layout is easy, the heat dissipation is good, and the scope of application is wider.

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

Description

一种直流无刷电机
技术领域
本实用新型涉及一种直流无刷电机。
背景技术
目前， 直流电机的结构如图 1所示， 包括电机实体 A和电机控制器 B, 电机实体 A包括定子组件、 转子组件和机壳， 电机控制器 B包括控制盒、 安装 在控制盒里面的控制板 C,控制盒安装在机壳底部，控制板 C集成有电源部分、 微处理器、 IGBT逆变器、 电机运行参数检测电路和接口电路， 由于电路单元 多且结构复杂， 而控制盒里面的空间非常有限， 给布线和电子零件布局、散热 带来 4艮大的困难， 电磁干扰也大， 一些体积较小的直流无刷电机， 由于控制盒 里面的空间太小， 根本不能满足要求。
实用新型内容
本实用新型的目的是提供一种直流无刷电机 ， 电机控制器包括控制盒、 安装在控制盒里面的主控制板和位于控制盒外面与主线路板电连接的副控制 板， 从而筒化主控制板的电路结构， 布线和电子零件布局容易， 散热好， 适用 范围更广。
本实用新型的技术方案如下：
一种直流无刷电机， 包括电机实体和电机控制器， 电机实体包括定子组 件、 转子组件和机壳， 电机控制器包括控制盒、 安装在控制盒里面的主控制板 和位于控制盒外面与主线路板电连接的副控制板，主控制板与副控制板至少设 置 4路连接端口，这四个连接端口包括直流母线电压端口，直流低压供电端口、 接地端口和半双工异步通信端口。
上述所述的主控制板包括第一微处理器、 IGBT逆变单元、 电机运行参数 检测单元和第一单线半双工异步通信电路，电机运行参数检测单元将信号送到 第一微处理器， 第一微处理器输出信号到 IGBT逆变单元， IGBT逆变单元控制 定子组件上的线圏绕组通电， 副控制板包括第二微处理器、第二单线半双工异 步通信电路和电源部分， 电源部分为各部分电路供电， 第一微处理器通过第一 单线半双工异步通信电路、第二单线半双工异步通信电路与第二微处理器建立 通信。
上述所述的副控制板还包括拨码开关组 ,拨码开关组向第二微处理器输入 设定数据。
上述所述的副控制板还设置有输入信号接口电路，输入信号接口电路连接 到第二微处理器的输入端。
上述所述的电源部分包括抗电磁干扰滤波电路、 整流电路和第二 DC/DC 降压电路， 交流输入连接抗电磁干扰滤波电路输入端，抗电磁干扰滤波电路的 输出端连接整流电路的输入端，整流电路的输出端连接第二 DC/DC降压电路输 入端， 整流电路的输出端获取直流母线电压， 第二 DC/DC降压电路的输出端获 取直流低压。
上述所述的主控制板还包括第一 DC/DC降压电路，第一 DC/DC降压电路与 直流低压供电端口连接， 第一 DC/DC降压电路输出端提供直流低压。
上述所述的电机运行参数检测单元包括用于检测转子位置和转速的霍尔 元件检测模块。
本实用新型与现有技术相比具有如下优点： 1 ) 电机控制器包括控制盒、 安装在控制盒里面的主控制板和位于控制盒外面与主线路板电连接的副控制 板， 从而筒化主控制板的电路结构，缩小体积， 布线和电子零件布局容易， 散 热好， 可以使用尺寸较小的直流无刷电机， 适用范围更广； 主控制板与副控制 板至少设置 4路连接端口，这四个连接端口包括直流母线电压端口，直流低压 供电端口、接地端口和半双工异步通信端口， 可以使主控制板与副控制板的接 口变得更加筒单， 筒化电路。 2 )主控制板包括第一微处理器、 IGBT逆变单元、 电机运行参数检测单元和第一单线半双工异步通信电路，副控制板包括第二微 处理器、第二单线半双工异步通信电路和电源部分， 电源部分为各部分电路供 电， 第一微处理器通过第一单线半双工异步通信电路、第二单线半双工异步通 信电路与第二微处理器建立通信， 电路分布结构合理，将电源部分放置在副控 制板， 进一步减少电磁干扰和有效解决散热问题； 3 ) 副控制板还包括拨码开 关组，拨码开关组向第二微处理器输入设定数据， 第二微处理控制器读取拨码 开关组设定的组合状态， 从而决定电机各档转速大小、 转向、 运行控制模式、 电机工作电压， 使用非常方便； 4 ) 副控制板还设置有输入信号接口电路， 输 入信号接口电路连接到第二微处理器的输入端， 方便与用户端系统控制器连 接； 5 )主控制板设置第一微处理器， 副控制板设置第二微处理器， 两个微处 理器根据不同的需要完成不同的个工作， 组合使用灵活方便，有利于提高运算 速度和工作效率。
附图说明：
图 1是传统的直流电机的结构示意图；
图 2是本实用新型的结构示意图；
图 3是本实用新型的使用状态图；
图 4是本实用新型的主控制板与副控制板的电路方框图；
图 5是单线半双工异步通信电路的具体电路连接图。
具体实施方式：
如图 2所示， 一种直流无刷电机， 包括电机实体 1和电机控制器， 电机 实体包括定子组件、 转子组件和机壳， 电机控制器包括控制盒 2、 安装在控制 盒 2里面的主控制板 3和位于控制盒 2外面与主线路板 3电连接的副控制板 6 , 主控制板 3与副控制板 6至少设置 4路连接端口，这四个连接端口包括直流母 线电压端口 Vdc , 直流氏压供电端口 Vccl、接地端口 GND和半双工异步通信端 口 R/T。 副控制板 6通过引线上的插头 5插入到插座 6上， 插座 6与主控制板 3电连接， 这样实现主控制板 3与副控制板 6连接。
如图 3、 图 4所示， 使用时， 利用副控制板上的输入信号接口电路与用户 端系统控制器连接， 由副控制板上的第二微处理器处理和转换信号。
如图 4所示， 主控制板包括第一微处理器、 IGBT逆变单元、 电机运行参 数检测单元和第一单线半双工异步通信电路，电机运行参数检测单元将信号送 到第一微处理器， 第一微处理器输出信号到 IGBT逆变单元， IGBT逆变单元控 制定子组件上的线圏绕组通电， 副控制板包括第二微处理器、第二单线半双工 异步通信电路和电源部分， 电源部分为各部分电路供电， 第一微处理器通过第 一单线半双工异步通信电路、第二单线半双工异步通信电路与第二微处理器建 立通信， 所述的副控制板还包括拨码开关组，拨码开关组向第二微处理器输入 设定数据， 所述的副控制板还设置有输入信号接口电路，输入信号接口电路连 接到第二微处理器的输入端， 电源部分包括抗电磁干扰滤波电路、整流电路和 第二 DC/DC降压电路， 交流输入连接抗电磁干扰滤波电路输入端，抗电磁干扰 滤波电路的输出端连接整流电路的输入端， 整流电路的输出端连接第二 DC/DC 降压电路输入端， 整流电路的输出端获取直流母线电压 Vdc , 第二 DC/DC降压 电路的输出端获取直流低压 Vccl、 Vcc2 , 直流低压 Vccl是 15V, 为 IGBT逆变 单元提供驱动电压， 直流低压 Vcc2是 5V, 为微处理器供电， 主控制板还包括 第一 DC/DC降压电路， 第一 DC/DC降压电路与直流低压供电端口 vccl连接， 第一 DC/DC降压电路输出端提供直流低压 Vcc2 , 电机运行参数检测单元包括 用于检测转子位置和转速的霍尔元件检测模块。第一微处理器与第二微处理器 是单片机 MCU或者数字信号处理器 DSP。
如图 5所示，本实用新型的第一单线半双工异步通信电路或者第二单线半 双工异步通信电路的结构如图 1所示，单线半双工异步通信电路包括比较器芯 片 IC601、 电阻 Rl、 电阻 R2、 电阻 R3和 电阻 R4、 电阻 R5、 电阻 R6、 电阻 R7和 电阻 R8 , 比较器芯片 IC601的第 4脚接地，， 第 8脚接 15V电源 vccl , 电阻 R3、 电阻 R6串联后两端分别连接 15V和地， 比较器芯片 IC601的第 2脚 连接在电阻 R3与电阻 R6之间， 比较器芯片 IC601的第 3脚、 第 7脚分别为 TXD和 RXD连接端口并与微处理器 MCU连接 ， 电阻 Rl、 电阻 R5串联后两端分 别连接 15V和地， 比较器芯片 IC601的第 6脚连接在电阻 R1与电阻 R5之间， 比较器芯片 IC601的第 5脚、 第 1脚并联起来连接电阻 R8的一端， 电阻 R8 的另一端作为 R/T信号输出口，电阻 R2的两端分别连接 15V电源 vccl和比较 器芯片 IC601的第 1脚，电阻 R4的两端分别连接 15V电源 vccl和比较器芯片 IC601的第 3脚， 电阻 R7的两端分别连接 15V电源 vccl和比较器芯片 IC601 的第 7脚。
本实用新型的电机控制器包括控制盒、安装在控制盒里面的主控制板 和位于控制盒外面与主线路板电连接的副控制板，从而筒化主控制板的电路结 构， 布线和电子零件布局容易， 散热好， 适用范围更广。

Claims

权利要求
1、 一种直流无刷电机， 包括电机实体和电机控制器， 电机实体包括定子 组件、 转子组件和机壳， 其特征在于： 电机控制器包括控制盒、 安装在控制盒 里面的主控制板和位于控制盒外面与主线路板电连接的副控制板，主控制板与 副控制板至少设置 4路连接端口，这四个连接端口包括直流母线电压端口， 直 流低压供电端口、 接地端口和半双工异步通信端口。
2、 根据权利要求 1所述的一种直流无刷电机， 其特征在于： 所述的主控 制板包括第一微处理器、 IGBT 逆变单元、 电机运行参数检测单元和第一单线 半双工异步通信电路， 电机运行参数检测单元将信号送到第一微处理器， 第一 微处理器输出信号到 IGBT逆变单元， IGBT逆变单元控制定子组件上的线圏绕 组通电， 副控制板包括第二微处理器、第二单线半双工异步通信电路和电源部 分， 电源部分为各部分电路供电， 第一微处理器通过第一单线半双工异步通信 电路、 第二单线半双工异步通信电路与第二微处理器建立通信。
3、 根据权利要求 2所述的一种直流无刷电机， 其特征在于： 所述的副控 制板还包括拨码开关组， 拨码开关组向第二微处理器输入设定数据。
4、 根据权利要求 3所述的一种直流无刷电机， 其特征在于： 所述的副控 制板还设置有输入信号接口电路，输入信号接口电路连接到第二微处理器的输 入端。
5、 根据权利要求 2所述的一种直流无刷电机， 其特征在于： 电源部分包 括抗电磁干扰滤波电路、整流电路和第二 DC/DC降压电路， 交流输入连接抗电 磁干扰滤波电路输入端， 抗电磁干扰滤波电路的输出端连接整流电路的输入 端， 整流电路的输出端连接第二 DC/DC降压电路输入端， 整流电路的输出端获 取直流母线电压， 第二 DC/DC降压电路的输出端获取直流低压。
6、 根据权利要求 5所述的一种直流无刷电机， 其特征在于： 主控制板还 包括第一 DC/DC降压电路， 第一 DC/DC降压电路与直流低压供电端口连接， 第 一 DC/DC降压电路输出端提供直流低压。
7、 根据权利要求 2所述的一种直流无刷电机， 其特征在于： 电机运行参 数检测单元包括用于检测转子位置和转速的霍尔元件检测模块。
PCT/CN2013/073177 2012-06-30 2013-03-26 一种直流无刷电机 Ceased WO2014000481A1 (zh)

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CN202721643U (zh) * 2012-06-30 2013-02-06 中山大洋电机股份有限公司 一种直流无刷电机
CN109116231A (zh) * 2018-06-25 2019-01-01 珠海格力电器股份有限公司 一种无刷直流电机emi测试方法及系统
CN210780619U (zh) * 2019-11-26 2020-06-16 中山大洋电机股份有限公司 一种兼容性转接线路板及应用其的电器设备系统
CN116345965A (zh) * 2023-04-24 2023-06-27 广东易立高科技有限公司 一种机房空调dc直流电机驱动板

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