WO2020119335A1 - 一种无线控制电机的启停系统 - Google Patents

一种无线控制电机的启停系统 Download PDF

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Publication number
WO2020119335A1
WO2020119335A1 PCT/CN2019/115796 CN2019115796W WO2020119335A1 WO 2020119335 A1 WO2020119335 A1 WO 2020119335A1 CN 2019115796 W CN2019115796 W CN 2019115796W WO 2020119335 A1 WO2020119335 A1 WO 2020119335A1
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Prior art keywords
relay
switch
motor
control
normally closed
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PCT/CN2019/115796
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English (en)
French (fr)
Inventor
沈礼伟
毛凌
李坤
赵留柱
张能金
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南京天辰礼达电子科技有限公司
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Publication of WO2020119335A1 publication Critical patent/WO2020119335A1/zh

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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
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02Details of starting control
    • H02P1/04Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
    • H02P1/10Manually-operated on/off switch controlling relays or contactors operating sequentially for starting a motor
    • 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
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • 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
    • H02P3/00Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor

Definitions

  • the invention relates to the field of motor control, in particular to a wireless control motor start-stop system.
  • the motor is a commonly used executive component in automatic control systems, and is one of the key products of electromechanical integration. It is widely used in various calculation and control automatic systems.
  • stepper motors With the development of microelectronics and computer technology, the demand and application of stepper motors are increasing day by day.
  • the outstanding advantage of the stepper motor is that it can achieve speed regulation, fast start-stop and forward and reverse control by changing the pulse frequency in a wide frequency range, and the open-loop system composed of it is simple, cheap, and very reliable Therefore, it has extremely wide application in many fields. However, it is currently immature in wireless control and low-voltage to high-voltage control.
  • the present invention provides a wireless control motor start and stop system
  • the present invention can be stable and safe to complete the control of low voltage to high voltage, and the control interface can be expanded to complete the control of multiple devices;
  • the electrical voltage can be expanded, and it can be expanded according to the above electrical logic for higher-level voltage control;
  • the data communication protocol uses the widely used modbus protocol, and the communication method uses lora broadcast mode and 4G, which can be passed through the terminal server or lora
  • the gateway controls the terminal.
  • a wireless control motor start-stop system includes a motor, an AC contactor S3, a relay K1, a switch S1, a switch S2, a relay K2, a relay K3, and a control module.
  • the control module includes a lora module and a 4G module.
  • a 3-phase contactor is used to connect the motor to the AC contactor S3.
  • control module completes control of the system by collecting data from the remote server/lora gateway.
  • the invention has the following beneficial effects: the invention can stably and safely complete the control of low voltage to high voltage, and the control interface can be expanded, which can complete the control of multiple devices at the same time; the electrical voltage can be expanded, which can be expanded according to the above electrical logic For higher-level voltage control; the data communication protocol adopts the widely used modbus protocol, and the communication method adopts lora broadcast mode and 4G.
  • the terminal control can be achieved through a terminal server or a lora gateway.
  • FIG. 1 is a schematic block diagram of a wireless control motor start-stop system of the present invention.
  • FIG. 2 is a block diagram of wireless communication involved in the present invention.
  • a wireless control motor start-stop system provided by the present invention includes a motor, an AC contactor S3, a relay K1, a switch S1, a switch S2, a relay K2, a relay K3, and a control module.
  • the control module includes a lora module and a 4G module.
  • the electrical connection of the solution of the present invention is shown in FIG. 1, a 3-phase contactor is used to connect the motor and the power supply, and the system directly completes the opening and closing of the contactor through the control relay 1, thereby controlling the start and stop of the motor.
  • the present invention can be stable and safe
  • the control of low voltage to high voltage is completed, and the control interface is extensible, which can complete the control of multiple devices at the same time;
  • the electrical voltage is extensible, which can be expanded according to the above electrical logic for higher level voltage control;
  • the working mode in which the motor is turned on is: when the start switch S1 is pressed, the coil of the relay K1 is energized, the normally closed contact of the relay K1 is disconnected, and the normally open contact is turned on. At this time, the current flows from the relay K1 Normally closed contact, normally closed contact of switch S2, normally closed contact of relay K2 to three-phase power supply, at this time the circuit remains conductive, relay K1 remains closed, AC contactor S3 is turned on, and the motor continues to be energized; The reset of the switch S1 will not affect the power supply of the system, and the start switch S1 and the relay K3 are in a parallel state, so the normally open contact of the relay K3 can be turned on to achieve the same effect.
  • the working mode of the motor stop is: when the motor is in the working state, that is, the relay K1 is in the pull-in state, the switch S2 or the normally closed contact of the relay K2 is opened, and the circuit is in the open state at this time, the relay K1 is reset and Switch to the normally closed contact, the circuit is connected to the relay K1 contact, the normally open contact of the switch S1 ⁇ the normally open contact of the relay K3, at this time the system circuit is in the open state, the contactor S3 is disconnected, the three-phase power supply Power supply stopped.
  • the working mode of the wireless control system is as follows: the remote control lora module and the 4G module are integrated in the wireless control system, and the control of the system is completed by receiving data from the remote server/lora gateway.
  • the data communication protocol adopts the standard modbus protocol and can be connected to any system.
  • the electrical control principle part designed by the present invention is not limited to the control of the motor, and the back end can be connected to any high-voltage system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Motor And Converter Starters (AREA)

Abstract

本发明提供了一种无线控制电机的启停系统,包括电机、交流接触器S3、继电器K1、开关S1、开关S2、继电器K2、继电器K3和控制模块,所述控制模块包括lora模块和4G模块,本发明能够能够稳定安全的完成低压对高压的控制,以及控制接口可扩展,可以同时完成多路设备的控制。

Description

一种无线控制电机的启停系统 技术领域
本发明涉及电机控制领域,具体涉及到一种无线控制电机的启停系统。
背景技术
电机是自动控制系统中常用的执行部件,是机电一体化的关键产品之一,广泛地应用在各种计算控制的自动系统中。随着微电子和计算机技术的发展,步进电机的需求和应用量与日俱增。步进电机突出的优点是它可以在宽广的频率范围内,通过改变脉冲频率来实现调速、快速起停和正反转控制等,并且由其组成的开环系统既简单、廉价,又非常可靠,因此在众多领域有着极其广泛的应用。但是目前在无线控制以及低压对高压的控制方面不成熟。
发明内容
为了解决上述不足的缺陷,本发明提供了一种无线控制电机的启停系统,本发明能够能够稳定安全的完成低压对高压的控制,以及控制接口可扩展,可以同时完成多路设备的控制;电气上的电压可扩展,可以按照上述电气逻辑进行拓展,进行更高等级的电压控制;数据通讯协议方面采用广泛应用的modbus协议,通讯方式上采用lora广播模式和4G,可以通过终端服务器或者lora网关实现终端的控制。
一种无线控制电机的启停系统,包括电机、交流接触器S3、继电器K1、开关S1、开关S2、继电器K2、继电器K3和控制模块,所述控制模块包括lora模块和4G模块。
上述的启停系统,其中,所述电机与交流接触器S3之间采用3相接触器连接。
上述的启停系统,其中,当启动开关S1按下后,继电器K1的线圈通电,继电器K1的常闭触点断开,常开触点导通,此时电流从继电器K1的常闭触点,开关S2的常闭触点,继电器K2常闭触点到三相电源,此时电路保持导通,继电器K1保持吸合,交流接触器S3导通,电机持续通电;此时开关S1的复位不会对系统的供电造成影响,启动开关S1和继电器K3处于并联状态。
上述的启停系统,其中,当电机处于工作状态即继电器K1处于吸合状态,断开开关S2的或者继电器K2的常闭触点,此时电路处于断路状态,继电器K1复位并切换到常闭触点,此时电路连接为继电器K1触点,开关S1的常开触点\继电器K3的常开触点,此时系统电路处于断路状态,接触器S3断开,三相电源供电停止。
上述的启停系统,其中,所述控制模块通过收取远程服务器/lora网关的数据完成对系统的控制。
本发明具有以下有益效果:本发明能够能够稳定安全的完成低压对高压的控制,以及控制接口可扩展,可以同时完成多路设备的控制;电气上的电压可扩展,可以按照上述电气逻辑进行拓展,进行更高等级的电压控制;数据通讯协议方面采用广泛应用的modbus协议,通讯方式上采用lora广播模式和4G,可以通过终端服务器或者lora网关实现终端的控制。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明及其特征、外形和优点将会变得更明显。在全部附图中相同的标记指示相同的部分。并未刻意按照比例绘制附图,重点在于示出本发明的主旨。
图1为本发明一种无线控制电机的启停系统的模块示意图。
图2为本发明中涉及的无线通讯框图。
具体实施方式
在下文的描述中,给出了大量具体的细节以便提供对本发明更为彻底的理解。然而,对于本领域技术人员而言显而易见的是,本发明可以无需一个或多个这些细节而得以实施。在其他的例子中,为了避免与本发明发生混淆,对于本领域公知的一些技术特征未进行描述。
为了彻底理解本发明,将在下列的描述中提出详细的步骤以及详细的结构,以便阐释本发明的技术方案。本发明的较佳实施例详细描述如下,然而除了这些详细描述外,本发明还可以具有其他实施方式。
参照图1-图2所示,本发明提供的一种无线控制电机的启停系统,包括电机、交流接触器S3、继电器K1、开关S1、开关S2、继电器K2、继电器K3和控制模块,所述控制模块包括lora模块和4G模块。本发明方案的电气连接如图1所示,电机和电源之间采用3相接触器连接,系统通过控制继电器1直接完成接触器的开合,从而控制电机的启停,本发明能够能够稳定安全的完成低压对高压的控制,以及控制接口可扩展,可以同时完成多路设备的控制;电气上的电压可扩展,可以按照上述电气逻辑进行拓展,进行更高等级的电压控制;数据通讯协议方面采用广泛应用的modbus协议,通讯方式上采用lora广播模式和4G,可以通过终端服务器或者lora网关实现终端的控制。
在本发明中,电机开启的工作模式为:当启动开关S1按下后,继电器K1的线圈通电,继电器K1的常闭触点断开,常开触点导通,此时电流从继电器K1的常闭触点,开关S2的常闭触点,继电器K2常闭触点到三相电源,此时电路保持导通,继电器K1保持吸合,交流接触器S3导通,电机持续通电;此时开关S1的复位不会对系统的供电造成影响,启动开关S1和继电器K3处于并联状态,因此继电器K3的常开触点导通能达到同样的效果。
在本发明中,电机停止的工作模式为:当电机处于工作状态即继电器K1处于吸合状态,断开开关S2的或者继电器K2的常闭触点,此时电路处于断路状态,继电器K1复位并切换到常闭触点,此时电路连接为继电器K1触点,开关S1的常开触点\继电器K3的常开触点,此时系统电路处于断路状态,接触器S3断开,三相电源供电停止。
在本发明中,参照图2所示,无线控制系统的工作方式为:无线控制系统内集成了远距离通信lora模块和4G模块,通过收取远程服务器/lora网关的数据完成对系统的控制。数据的通信协议采用标准的modbus协议,可以接接入到任何系统中。本发明设计的电气控制原理部分不仅仅限于电机的控制,后端可以接入任何高压系统。
以上对本发明的较佳实施例进行了描述。需要理解的是,本发明并不局限于上述特定实施方式,其中未尽详细描述的设备和结构应该理解为用本领域中的普通方式予以实施;任何熟悉本领域的技术人员,在不脱离本发明技术方案范围情况下,都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰,或修改为等同变化的等效实施例,这并不影响本发明的实质内容。因此,凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰,均仍属于本发明技术方案保护的范围内。

Claims (5)

  1. 一种无线控制电机的启停系统,其特征在于,包括电机、交流接触器S3、继电器K1、开关S1、开关S2、继电器K2、继电器K3和控制模块,所述控制模块包括lora模块和4G模块。
  2. 如权利要求1所述的一种无线控制电机的启停系统,其特征在于,所述电机与交流接触器S3之间采用3相接触器连接。
  3. 如权利要求2所述的一种无线控制电机的启停系统,其特征在于,当启动开关S1按下后,继电器K1的线圈通电,继电器K1的常闭触点断开,常开触点导通,此时电流从继电器K1的常闭触点,开关S2的常闭触点,继电器K2常闭触点到三相电源,此时电路保持导通,继电器K1保持吸合,交流接触器S3导通,电机持续通电;此时开关S1的复位不会对系统的供电造成影响,启动开关S1和继电器K3处于并联状态。
  4. 如权利要求3所述的一种无线控制电机的启停系统,其特征在于,当电机处于工作状态即继电器K1处于吸合状态,断开开关S2的或者继电器K2的常闭触点,此时电路处于断路状态,继电器K1复位并切换到常闭触点,此时电路连接为继电器K1触点,开关S1的常开触点\继电器K3的常开触点,此时系统电路处于断路状态,接触器S3断开,三相电源供电停止。
  5. 如权利要求4所述的一种无线控制电机的启停系统,其特征在于,所述控制模块通过收取远程服务器/lora网关的数据完成对系统的控制。
PCT/CN2019/115796 2018-12-11 2019-11-05 一种无线控制电机的启停系统 WO2020119335A1 (zh)

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