WO2021151281A1 - Energy-saving circuit and starting device - Google Patents

Energy-saving circuit and starting device Download PDF

Info

Publication number
WO2021151281A1
WO2021151281A1 PCT/CN2020/103482 CN2020103482W WO2021151281A1 WO 2021151281 A1 WO2021151281 A1 WO 2021151281A1 CN 2020103482 W CN2020103482 W CN 2020103482W WO 2021151281 A1 WO2021151281 A1 WO 2021151281A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
voltage
control
load
energy
Prior art date
Application number
PCT/CN2020/103482
Other languages
French (fr)
Chinese (zh)
Inventor
郭桥石
刘建德
贾宝华
Original Assignee
郭桥石
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 郭桥石 filed Critical 郭桥石
Publication of WO2021151281A1 publication Critical patent/WO2021151281A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters

Definitions

  • the invention relates to an energy-saving circuit and a starting device, in particular to an energy-saving circuit suitable for energy-saving maintenance and pulse starting (driving) of loads such as contactors (relays), solenoid valves, electromagnets, etc., and an energy-saving circuit for load pulses
  • loads such as contactors (relays), solenoid valves, electromagnets, etc.
  • an energy-saving circuit for load pulses The boot device to start.
  • loads such as contactors (relays), solenoid valves, electromagnets, etc. are commonly used in electronic control systems such as new energy vehicles, rail transit, ships, aviation, automation control, and motor drive.
  • the traditional control circuit uses a higher voltage control power supply to control the load RY (electromagnetic system) by controlling the switch K (note: multiple switches can be connected in series, or in parallel, or in a hybrid connection) (as shown in Figure 1), Since the load RY is in the normally open state, a large current is required to drive it to close, and the voltage and output current of the control power supply must be sufficient to drive the relevant load RY to act.
  • the purpose of the present invention is to solve the problems of high voltage and large circuit energy consumption of contactors (relays), solenoid valves, electromagnets, etc. in the existing electronic control system, and to provide a simple circuit, low cost, good energy-saving effect, and safety. High-performance energy-saving circuit and a starting device with a wide range of applications and easy implementation.
  • the control switch and the load required to save energy form a first series circuit.
  • the first series circuit is used to connect the first power supply.
  • the first switch and load form a second series circuit.
  • the second series circuit is used to connect the second series circuit. Power supply, the voltage of the first power supply is lower than the voltage of the second power supply; the first switch is a voltage detection switch for detecting that the control switch is closed; the control switch is closed, the second power supply drives the load, and then the first power supply maintains power to the load.
  • an energy-saving circuit in which the control switch K and the load RY required for energy-saving are connected in series form a first series circuit, and the first series circuit is used to connect the first power supply PA (PA terminal input).
  • the first switch S1 and the load RY form a second series circuit.
  • the second series circuit is used to connect the second power supply PB (input at the PB terminal).
  • the voltage of the first power supply PA is lower than the voltage of the second power supply PB; the first switch S1 is the voltage
  • the detection switch is used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load. Then, the first switch S1 is turned off (or the second power supply PB stops supplying power), the first The power supply PA maintains power supply to the load to achieve the purpose of energy saving.
  • the invention has the advantages of reasonable design, simple circuit, low cost, good energy-saving effect and high safety.
  • Figure 1 is a schematic diagram of the technical background of the present invention.
  • FIG. 2 is a schematic diagram of the energy-saving circuit and starting device of the present invention.
  • Fig. 3 is a schematic diagram of the first embodiment of the energy-saving circuit and starting device of the present invention.
  • Fig. 4 is a schematic diagram of the first switch of the energy-saving circuit and starting device of the present invention.
  • Fig. 5 is a schematic diagram of the second embodiment of the energy-saving circuit and starting device of the present invention.
  • Fig. 3 The first embodiment of the energy-saving circuit and starting device of the present invention is shown in Fig. 3:
  • the control switch K and the energy-saving load RY are connected in series to form a first series circuit.
  • the first series circuit is connected to the first power source PA (PA terminal input) through a unidirectional conducting device DA (diode).
  • S1, load RY constitute a second series circuit, the second series circuit is used to connect the second power supply PB (input at PB), the voltage of the first power supply PA is less than the voltage of the second power supply PB;
  • the first switch S1 is a voltage detection switch, Used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load RY, and then the first switch S1 is turned off (or the second power supply PB stops supplying power), and the first power supply PA Maintain power supply to the load to achieve the purpose of energy saving.
  • a starting device based on the above energy-saving circuit includes a first switch S1, a second switch S2, and a control unit A.
  • the control signal of the second switch S2 is provided by the control unit A, and the second power source PB is connected to the second switch S2 through the second switch S2.
  • the second series circuit is connected; the number of the first switch S1, the control switch K, and the load RY is one or more.
  • It also includes a photoelectric coupling unit B composed of a resistor R2 and a photocoupler OPT1, and a second capacitor C2 (the resistor R1 in series is used for current limiting).
  • the photoelectric coupling unit B and the second capacitor C2 are connected to the common terminal PC connected to the first switch S1 and the second switch S2.
  • the other end of the photoelectric coupling unit B and the second capacitor C2 is connected to the first power supply PA (or can The power supply PB is connected or connected to the ground), and the voltage signal of the common terminal PC connected to the first switch S1 and the second switch S2 is provided to the control unit A through the photoelectric coupling unit B.
  • the first switch S1 at least includes a semi-controlled device TR1 and a first capacitor C1.
  • the voltage across the load RY (or both ends of the control switch K) is coupled to the triggering pole of the semi-controlled device TR1 through the first capacitor C1, and is used to detect the rise in the voltage of the load RY (or the drop in the voltage across the control switch K);
  • the first switch S1 can use the circuit shown in Figure 4, which consists of a semi-controlled device TR1 (bidirectional thyristor), a first diode D1, a second diode D2, a first capacitor C1, and a resistor. R3 composition.
  • the semi-controlled device TR1 and the first diode D1 are connected in series, and the voltage of the load RY (or the control switch K) is coupled to the trigger electrode of the semi-controlled device TR1 through the resistor R3 and the first capacitor C1; the anode of the second diode D2 It is connected with the trigger pole of the semi-controlled device TR1 to prevent the semi-controlled device TR1 from being triggered when the voltage drops across the load RY.
  • control unit A it is possible to eliminate the need for the control unit A to independently control each first switch S1 (semi-controlled device) when multiple loads are driven, thereby simplifying the circuit.
  • Fig. 5 The second embodiment of the energy-saving circuit and starting device of the present invention is shown in Fig. 5:
  • the control switch K and the energy-saving load RY are connected in series to form a first series circuit.
  • the first series circuit is connected to the first power source PA (PA terminal input) through a unidirectional conducting device DA (diode).
  • S1, load RY constitute a second series circuit, the second series circuit is used to connect the second power supply PB (input at PB), the voltage of the first power supply PA is less than the voltage of the second power supply PB;
  • the first switch S1 is a voltage detection switch, Used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load RY, and then the first switch S1 is turned off (or the second power supply PB stops supplying power), and the first power supply PA Maintain power to the load RY to achieve the purpose of energy saving.
  • a startup device based on the above energy-saving circuit which includes a first switch S1, the first switch S1 is composed of a first device SCR1, a second switch S2, a control unit A, and the second power supply PB passes through a second switch S2 and a first switch S2.
  • the device SCR1 is connected to the load RY, and the control signal of the first device SCR1 and the control signal of the second switch S2 are provided by the control unit A.
  • the control unit A is used to detect that the control switch K is closed, and can also be used to detect the voltage at the common terminal N1 of the control switch K and the load RY (the voltage at both ends of the control switch K, or the voltage of the load RY); the second switch S2, the first The voltage signal of the common terminal PC of the device SCR1 is transmitted to the control unit A (to facilitate the control unit A to detect the working status of the second switch S2 and the first device SCR1); the number of the first device SCR1, the control switch K, and the load RY is one, or For more than one.
  • the first device SCR1 is a semi-controlled device, which has the advantages of strong overload and low cost
  • the second switch S2 is a controllable switch, preferably a fully controlled device (such as a triode, a field effect tube, an IGBT, etc.) ); Because the price of fully-controlled devices with the same withstand voltage and the same maximum operating current is much higher than that of semi-controlled devices with the same specifications (the current price of 25 amperes/1200 volts IGBTs is dozens of 25 amperes/1200 volts unidirectional thyristor prices Times), the second switch S2 adopts a semi-controlled device, which has the advantages of being able to withstand positive and negative voltages, strong overload capacity, low cost, current zero-crossing cutoff, and convenient driving; multi-channel (two-channel, or more than two-channel) first device SCR1 uses the second switch S2 and the control unit A to drive multiple loads, which has the advantages of high utilization of fully-controlled devices, low cost, small size
  • a voltage-limiting device VT is connected to the common end of the second switch S2 and the first device SCR1 (a diode and a Zener diode can be used in series, and the Zener diode can also be a varistor or a transient suppression diode; or a varistor alone
  • the load RY forms a loop through the voltage-limiting device VT and the first device SCR1, which gives full play to the characteristics of the semi-controlled device's current zero-crossing shutdown, so that the first switch S1 is in the second switch S2 After being cut off, it is cut off to prevent overvoltage generation; the second switch S2 does not need to work in the amplification area during the turn-off process, and has the advantages of low loss and low temperature rise, and realizes that the load RY can be quickly released after power failure.
  • the first device SCR1 of this embodiment is a semi-controlled device (semi-controlled switch).
  • a full-controlled device full-controlled switch, or mechanical switch
  • the second switch S2 can be omitted, and the control unit A can directly control
  • the first device SCR1 realizes the start of the load.
  • each control switch K is connected in series with the unidirectional conduction device DA to reduce the workload of the second switch S2; the control unit A may also be used to detect that the control switch K is disconnected When the control switch K is turned off, the first device S1 and the second switch S2 are controlled to be turned on, so that the control switch K can be extinguished.
  • the control unit A of the above embodiment preferably has a programmable device built in (the definition of a programmable device in the present invention: a microcontroller, a programmable logic device, etc., the same device).
  • the control unit A is an intelligent unit with a built-in control program. It uses programmable devices to realize voltage detection, pulse width control and delay control of the second switch S2 conduction without increasing hardware resources or adding very few hardware resources (
  • the control unit stores the time parameters of driving load pulse width and delay control), which is conducive to simplifying the circuit; the voltage signal of the common terminal PC is connected to the control unit A (programmable device), and the control unit A understands (each channel) in real time. Whether the control device TR1 (SCR1) is cut off to meet the response speed required by the (multi-channel) load drive.
  • J1 can be an external power port (used to provide the working energy of the control unit A, or used to provide the second power supply, the second power supply PB can also use another power supply, which is optional; the working power supply of the control unit A preferably uses the first power supply , And can be omitted when it is not used as the second power input); J2 is the communication port (optional), used to transmit and receive related information.
  • the voltage of the first power supply is set to not have the drive load RY action.
  • the voltage value of the first power supply is preferably less than or equal to 1/2 of the voltage value of the second power supply (at least 75% energy saving). In order to achieve sufficient energy to maintain the electromagnetic system (load), it is recommended not to be less than the second power supply. 1/10 of the voltage value of the power supply.
  • the conduction time of the first switch S1 is between 10 and 100 milliseconds.
  • the starting device of the present invention can be used as a product with a wide range of application, convenient use, and mass production, convenient for safety certification, popularization and use, and can be implemented without changing the original circuit action logic, which is extremely beneficial to change the existing contactor , Relay, solenoid valve, electromagnet energy saving technology is difficult to popularize, the above starting device can be placed in a shell, connected to the external control switch K through the terminal, the specific shape can be flexibly designed according to needs.
  • the load in the above embodiment is an electric switch such as a contactor (relay).
  • any driving target can also be defined as a load, such as a solenoid valve, an electromagnet, and so on.
  • a capacitor discharge or charge
  • the physical characteristics of capacitor charging or discharging are used to reduce the mechanical impact of the electromagnetic system.
  • the original control power supply is used as the second power supply (for example, when the original control power supply is AC, the rectifier can be selected as required, or another DC power supply can be used as the The second power supply), add a low-power DC power supply (which can be built into the control unit A, using a switching power supply, or a power frequency transformer rectified power supply) as the first power supply, which is extremely convenient for implementation and popularization.
  • a low-power DC power supply which can be built into the control unit A, using a switching power supply, or a power frequency transformer rectified power supply
  • the signal of the control switch K (such as a relay) can also be used to provide the control unit A; or control The control signal of the switch K (provided by the J2 communication port) is transmitted to the control unit A; or the auxiliary switch signal of the control switch K is transmitted to the control unit A, so that the control unit A can control the conduction of the first switch S1.
  • control switch can be a manual switch (button switch, rocker switch, toggle switch), or relay (contactor), or travel switch.
  • the above load is preferably a load that does not have a single voltage (power supply) operating capability, that is, the load requires two voltages (power supply) of the pulse start voltage (second power supply) and the sustain voltage (first power supply) to work normally. Because the load has the ability to work with a single power supply, the required cost is higher, the quality is larger, and the volume is larger.
  • the second switch preferably adopts a semiconductor switch (a fully-controlled device, a triode, a field effect tube, an IGBT, etc., which has the advantage of unlimited number of actions).
  • the second switch is recommended to use a current-limiting switch (a current-limiting switch circuit composed of a semiconductor circuit, including a constant current switch circuit), which can limit the drive current.
  • the first power supply and the second power supply are both direct current power supplies.
  • the present invention has the following advantages:
  • the low-voltage first power supply is used as the system control loop (secondary loop) power supply, which has good energy-saving effect and can greatly reduce the control loop.
  • the withstand voltage index and insulation requirements of the components are conducive to reducing costs, reducing volume, and improving working reliability; electric pulses start the load, and the control circuit is in a low-voltage working state for a long time, which has high safety.
  • the first switch is a voltage detection switch, which is used to detect that the control switch is closed.
  • the closed control switch is used to provide a voltage signal, and the load can be maintained voltage; the control switch can also be used to cut off the sustain voltage of the load, with a wide application range and simple circuit.
  • the first power supply provides the sustaining voltage of the load
  • the second power supply provides pulse driving the load, which can reduce the risk of the electromagnetic system coils from burning out, and has a good energy-saving effect.
  • the high voltage starts the load
  • the low voltage the first power supply
  • the making current of the control switch (the current in the closing process) is the maintenance current, and the breaking voltage is the maintenance voltage, according to the low breaking voltage through the control switch (for example, in the locomotive industry, it is used to cut 2A/110V DC and cut 2A
  • the price difference of 30VDC control mechanical switches can be up to several tens of times, and the control switch can be a switch with a low rated working voltage.
  • the invention can effectively reduce the cost of the control switch and improve the reliability of the control switch.
  • the same starting device can be used to drive multiple contactors, relays, solenoid valves, and electromagnets of different specifications, or hybrid (any two or three contactors, solenoid valves, and electromagnets) drive, which has a wide range of applications , Strong versatility, extremely conducive to popularization and promotion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

An energy-saving circuit for performing energy-saving maintenance and pulse start (drive) on an electromagnetic system (load), and a starting device. Control switches (K) and loads (RY) requiring energy-saving form a first series circuit, the first series circuit being used to be connected to a first power source (PA); first switches (S1) and the loads (RY) form a second series circuit, the second series circuit being used to be connected to a second power source (PB); the voltage of the first power source (PA) is less than the voltage of the second power source (PB); the first switches (S1) are voltage detection switches for detecting the closing of the control switches (K); and if the control switches (K) are closed, the second power source (PB) drives the loads (RY), and the first power source (PA) maintains power supply to the loads (RY). The circuit is simple, and has a low cost, a good energy-saving effect, and high safety.

Description

节能电路及启动装置Energy-saving circuit and starting device 技术领域Technical field
本发明涉及一种节能电路及启动装置，特别是一种适合对接触器(继电器)、电磁阀、电磁铁等负载起节能维持、脉冲启动(驱动)的节能电路，及一种用于负载脉冲启动的启动装置。The invention relates to an energy-saving circuit and a starting device, in particular to an energy-saving circuit suitable for energy-saving maintenance and pulse starting (driving) of loads such as contactors (relays), solenoid valves, electromagnets, etc., and an energy-saving circuit for load pulses The boot device to start.
背景技术Background technique
目前在新能源汽车、轨道交通、舰船、航空、自动化控制、电机拖动等电控***中，普遍使用接触器(继电器)、电磁阀、电磁铁等负载。传统控制电路采用较高电压的控制电源通过控制开关K(注：可以多个开关串联，或并联，或混联等方式组成)对负载RY(电磁***)进行控制(如图1所示)，由于负载RY处于常开状态时，需要很大的电流驱动其闭合，该控制电源的电压和输出电流必须足够驱动相关负载RY动作。其实在负载RY闭合完成后，仅需很小的电流(提供很低电压给负载)维持其闭合状态即可。传统电路存在电路功耗大，控制开关K接通或分断大的电流，控制开关K需要分断较高的电压、***安全性低等缺点。At present, loads such as contactors (relays), solenoid valves, electromagnets, etc. are commonly used in electronic control systems such as new energy vehicles, rail transit, ships, aviation, automation control, and motor drive. The traditional control circuit uses a higher voltage control power supply to control the load RY (electromagnetic system) by controlling the switch K (note: multiple switches can be connected in series, or in parallel, or in a hybrid connection) (as shown in Figure 1), Since the load RY is in the normally open state, a large current is required to drive it to close, and the voltage and output current of the control power supply must be sufficient to drive the relevant load RY to act. In fact, after the load RY is closed, only a small current (providing a very low voltage to the load) is required to maintain its closed state. Traditional circuits have disadvantages such as large circuit power consumption, the control switch K turns on or breaks large currents, the control switch K needs to break a higher voltage, and the system safety is low.
发明内容Summary of the invention
本发明的目的在于解决现有电控***中接触器(继电器)、电磁阀、电磁铁等存在电压高、电路能耗大等的问题，提供一种电路简单、成本低、节能效果好、安全性高的节能电路及一种适用范围广、方便实施的启动装置。The purpose of the present invention is to solve the problems of high voltage and large circuit energy consumption of contactors (relays), solenoid valves, electromagnets, etc. in the existing electronic control system, and to provide a simple circuit, low cost, good energy-saving effect, and safety. High-performance energy-saving circuit and a starting device with a wide range of applications and easy implementation.
实现本发明的目的是通过以下技术方案来达到的：The purpose of the present invention is achieved through the following technical solutions:
一种节能电路，控制开关、所需节能的负载组成第一串联电路，第一串联电路用于连接第一电源，第一开关、负载组成第二串联电路，第二串联电路用于连接第二电源，第一电源的电压小于第二电源的电压；第一开关为电压检测开关，用于检测控制开关闭合；控制开关闭合，第二电源驱动负载，然后第一电源维持对负载供电。An energy-saving circuit. The control switch and the load required to save energy form a first series circuit. The first series circuit is used to connect the first power supply. The first switch and load form a second series circuit. The second series circuit is used to connect the second series circuit. Power supply, the voltage of the first power supply is lower than the voltage of the second power supply; the first switch is a voltage detection switch for detecting that the control switch is closed; the control switch is closed, the second power supply drives the load, and then the first power supply maintains power to the load.
工作原理：如图2所示，一种节能电路，控制开关K、所需节能的负载RY串联组成第一串联电路，第一串联电路用于连接第一电源PA(PA端输入)。第一开关S1、负载RY组成第二串联电路，第二串联电路用于连接第二电源PB(PB端输入)，第一电源PA的电压小于第二电源PB的电压；第一开关S1为电压检测开关，用于检测控制开关K闭合；当控制开关K闭合，第一开关S1导通，第二电源PB驱动负载，然后，第一开关S1截止(或第二电源PB停止供电)，第一电源PA维持对负载供电，实现节能的目的。Working principle: As shown in Fig. 2, an energy-saving circuit in which the control switch K and the load RY required for energy-saving are connected in series form a first series circuit, and the first series circuit is used to connect the first power supply PA (PA terminal input). The first switch S1 and the load RY form a second series circuit. The second series circuit is used to connect the second power supply PB (input at the PB terminal). The voltage of the first power supply PA is lower than the voltage of the second power supply PB; the first switch S1 is the voltage The detection switch is used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load. Then, the first switch S1 is turned off (or the second power supply PB stops supplying power), the first The power supply PA maintains power supply to the load to achieve the purpose of energy saving.
本发明设计合理，具有电路简单、成本低、节能效果好、安全性高的优点。The invention has the advantages of reasonable design, simple circuit, low cost, good energy-saving effect and high safety.
附图说明Description of the drawings
图1是本发明技术背景原理图。Figure 1 is a schematic diagram of the technical background of the present invention.
图2是本发明节能电路及启动装置原理图。Figure 2 is a schematic diagram of the energy-saving circuit and starting device of the present invention.
图3是本发明节能电路及启动装置实施例一原理图。Fig. 3 is a schematic diagram of the first embodiment of the energy-saving circuit and starting device of the present invention.
图4是本发明节能电路及启动装置之第一开关原理图。Fig. 4 is a schematic diagram of the first switch of the energy-saving circuit and starting device of the present invention.
图5是本发明节能电路及启动装置实施例二原理图。Fig. 5 is a schematic diagram of the second embodiment of the energy-saving circuit and starting device of the present invention.
具体实施方式Detailed ways
本发明节能电路及启动装置的实施例一，如图3所示：The first embodiment of the energy-saving circuit and starting device of the present invention is shown in Fig. 3:
一种节能电路，控制开关K、所需节能的负载RY串联组成第一串联电路，第一串联电路通过单向导通器件DA(二极管)与第一电源PA(PA端输入)连接，第一开关S1、负载RY组成第二串联电路，第二串联电路用于连接第二电源PB(PB端输入)，第一电源PA的电压小于第二电源PB的电压；第一开关S1为电压检测开关，用于检测控制开关K闭合；当控制开关K闭合，第一开关S1导通，第二电源PB驱动负载RY，然后，第一开关S1截止(或第二电源PB停止供电)，第一电源PA维持对负载供电，实现节能的目的。An energy-saving circuit. The control switch K and the energy-saving load RY are connected in series to form a first series circuit. The first series circuit is connected to the first power source PA (PA terminal input) through a unidirectional conducting device DA (diode). S1, load RY constitute a second series circuit, the second series circuit is used to connect the second power supply PB (input at PB), the voltage of the first power supply PA is less than the voltage of the second power supply PB; the first switch S1 is a voltage detection switch, Used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load RY, and then the first switch S1 is turned off (or the second power supply PB stops supplying power), and the first power supply PA Maintain power supply to the load to achieve the purpose of energy saving.
一种基于以上的节能电路的启动装置，其包括第一开关S1、第二开关S2、控制单元A，第二开关S2的控制信号由控制单元A提供，第二电源PB通过第二开关S2与第二串联电路连接；第一开关S1、控制开关K、负载RY数量为一，或一以上。还包括由电阻R2与光电耦合器OPT1组成的光电耦合单元B、第二电容C2(串联的电阻R1用于限流)。光电耦合单元B、第二电容C2与第一开关S1、第二开关S2连接的共同端PC连接，光电耦合单元B、第二电容C2的另一端与第一电源PA连接(也可以与第二电源PB连接，或对地连接)，第一开关S1、第二开关S2连接的共同端PC的电压信号通过光电耦合单元B提供至控制单元A。A starting device based on the above energy-saving circuit includes a first switch S1, a second switch S2, and a control unit A. The control signal of the second switch S2 is provided by the control unit A, and the second power source PB is connected to the second switch S2 through the second switch S2. The second series circuit is connected; the number of the first switch S1, the control switch K, and the load RY is one or more. It also includes a photoelectric coupling unit B composed of a resistor R2 and a photocoupler OPT1, and a second capacitor C2 (the resistor R1 in series is used for current limiting). The photoelectric coupling unit B and the second capacitor C2 are connected to the common terminal PC connected to the first switch S1 and the second switch S2. The other end of the photoelectric coupling unit B and the second capacitor C2 is connected to the first power supply PA (or can The power supply PB is connected or connected to the ground), and the voltage signal of the common terminal PC connected to the first switch S1 and the second switch S2 is provided to the control unit A through the photoelectric coupling unit B.
第一开关S1：至少包括半控型器件TR1、第一电容C1。负载RY两端(或控制开关K两端)的电压通过第一电容C1耦合至半控型器件TR1触发极，用于检测负载RY电压的上升(或检测控制开关K两端电压的下降)；实际使用时，第一开关S1可以采用如图4所示的电路，其由半控型器件TR1(双向晶闸管)、第一二极管D1、第二二极管D2、第一电容C1、电阻R3组成。半控型器件TR1、第一二极管D1串联，负载RY(或控制开关K)的电压通过电阻R3、第一电容C1耦合至半控型器件TR1触发极；第二二极管D2的阳极与半控型器件TR1的触发极连接，用于防止在负载RY两端出现电压下降时触发半控型器件TR1。The first switch S1: at least includes a semi-controlled device TR1 and a first capacitor C1. The voltage across the load RY (or both ends of the control switch K) is coupled to the triggering pole of the semi-controlled device TR1 through the first capacitor C1, and is used to detect the rise in the voltage of the load RY (or the drop in the voltage across the control switch K); In actual use, the first switch S1 can use the circuit shown in Figure 4, which consists of a semi-controlled device TR1 (bidirectional thyristor), a first diode D1, a second diode D2, a first capacitor C1, and a resistor. R3 composition. The semi-controlled device TR1 and the first diode D1 are connected in series, and the voltage of the load RY (or the control switch K) is coupled to the trigger electrode of the semi-controlled device TR1 through the resistor R3 and the first capacitor C1; the anode of the second diode D2 It is connected with the trigger pole of the semi-controlled device TR1 to prevent the semi-controlled device TR1 from being triggered when the voltage drops across the load RY.
本实施例，可以使得在多路负载驱动时，无需控制单元A对每个第一开关S1(半控型器件)进行独立控制，简化电路。In this embodiment, it is possible to eliminate the need for the control unit A to independently control each first switch S1 (semi-controlled device) when multiple loads are driven, thereby simplifying the circuit.
本发明节能电路及启动装置的实施例二，如图5所示：The second embodiment of the energy-saving circuit and starting device of the present invention is shown in Fig. 5:
一种节能电路，控制开关K、所需节能的负载RY串联组成第一串联电路，第一串联电路通过单向导通器件DA(二极管)与第一电源PA(PA端输入)连接，第一开关S1、负载RY组成第二串联电路，第二串联电路用于连接第二电源PB(PB端输入)，第一电源PA的电压小于第二电源PB的电压；第一开关S1为电压检测开关，用于检测控制开关K闭合；当控制开关K闭合，第一开关S1导通，第二电源PB驱动负载RY，然后，第一开关S1截止(或第二电源PB停止供电)，第一电源PA维持对负载RY供电，实现节能的目的。An energy-saving circuit. The control switch K and the energy-saving load RY are connected in series to form a first series circuit. The first series circuit is connected to the first power source PA (PA terminal input) through a unidirectional conducting device DA (diode). S1, load RY constitute a second series circuit, the second series circuit is used to connect the second power supply PB (input at PB), the voltage of the first power supply PA is less than the voltage of the second power supply PB; the first switch S1 is a voltage detection switch, Used to detect that the control switch K is closed; when the control switch K is closed, the first switch S1 is turned on, and the second power supply PB drives the load RY, and then the first switch S1 is turned off (or the second power supply PB stops supplying power), and the first power supply PA Maintain power to the load RY to achieve the purpose of energy saving.
一种基于以上的节能电路的启动装置，其包括第一开关S1，第一开关S1由第一器件SCR1、第二开关S2、控制单元A组成，第二电源PB通过第二开关S2、第一器件SCR1与负载RY连接，第一器件SCR1的控制信号、第二开关S2的控制信号由控制单元A提供。控制单元A用于检测控制开关K闭合，也可用于检测控制开关K与负载RY共同端N1的电压(为控制开关K两端的电压，或为负载RY的电压)；第二开关S2、第一器件SCR1的共同端PC的电压信号传递至控制单元A(方便控制单元A检测第二开关S2、第一器件SCR1的工作状态)；第一器件SCR1、控制开关K、负载RY数量为一，或为一以上。A startup device based on the above energy-saving circuit, which includes a first switch S1, the first switch S1 is composed of a first device SCR1, a second switch S2, a control unit A, and the second power supply PB passes through a second switch S2 and a first switch S2. The device SCR1 is connected to the load RY, and the control signal of the first device SCR1 and the control signal of the second switch S2 are provided by the control unit A. The control unit A is used to detect that the control switch K is closed, and can also be used to detect the voltage at the common terminal N1 of the control switch K and the load RY (the voltage at both ends of the control switch K, or the voltage of the load RY); the second switch S2, the first The voltage signal of the common terminal PC of the device SCR1 is transmitted to the control unit A (to facilitate the control unit A to detect the working status of the second switch S2 and the first device SCR1); the number of the first device SCR1, the control switch K, and the load RY is one, or For more than one.
本实施例，第一器件SCR1为半控型器件，具有过载力强、成本低的优点；第二开关S2为可控型开关，优选为全控型器件(如三极管、场效应管、IGBT等)；由于相同耐压、相同最大工作电流的全控型器件价格远高于相同规格的半控型器件(目前25安培/1200伏特的IGBT价格为25安培/1200伏特单向晶闸管价格的几十倍)，第二开关S2采用半控型器件具有可承受正反电压、过载能力强、成本低、电流过零截止、驱动方便的优点；多路(二路，或二路以上)第一器件SCR1共同使用第二开关S2、控制单元A对多路负载进行驱动，具有全控型器件利用率高、成本低、体积小、响应速度快的优点；In this embodiment, the first device SCR1 is a semi-controlled device, which has the advantages of strong overload and low cost; the second switch S2 is a controllable switch, preferably a fully controlled device (such as a triode, a field effect tube, an IGBT, etc.) ); Because the price of fully-controlled devices with the same withstand voltage and the same maximum operating current is much higher than that of semi-controlled devices with the same specifications (the current price of 25 amperes/1200 volts IGBTs is dozens of 25 amperes/1200 volts unidirectional thyristor prices Times), the second switch S2 adopts a semi-controlled device, which has the advantages of being able to withstand positive and negative voltages, strong overload capacity, low cost, current zero-crossing cutoff, and convenient driving; multi-channel (two-channel, or more than two-channel) first device SCR1 uses the second switch S2 and the control unit A to drive multiple loads, which has the advantages of high utilization of fully-controlled devices, low cost, small size and fast response speed;
在第二开关S2、第一器件SCR1的共同端连接限压器件VT(可以采用二极管与稳压二极管串联组成，稳压二极管也可以采用压敏电阻，或瞬态抑制二极管；或单独采用压敏电阻)，负载RY失电后，负载RY通过限压器件VT、第一器件SCR1形成回路，其充分发挥了半控型器件电流过零关断的特点，使得第一开关S1在第二开关S2截止后截止，防止过电压产生；第二开关S2在关断过程中无需工作在放大区，具有损耗小、温升低的优点，且实现负载RY失电后能快速释放。A voltage-limiting device VT is connected to the common end of the second switch S2 and the first device SCR1 (a diode and a Zener diode can be used in series, and the Zener diode can also be a varistor or a transient suppression diode; or a varistor alone After the load RY loses power, the load RY forms a loop through the voltage-limiting device VT and the first device SCR1, which gives full play to the characteristics of the semi-controlled device's current zero-crossing shutdown, so that the first switch S1 is in the second switch S2 After being cut off, it is cut off to prevent overvoltage generation; the second switch S2 does not need to work in the amplification area during the turn-off process, and has the advantages of low loss and low temperature rise, and realizes that the load RY can be quickly released after power failure.
本实施例第一器件SCR1为半控型器件(半控型开关)，当采用全控型器件(全控型开 关，或机械开关)时，第二开关S2可省略，控制单元A可以直接控制第一器件SCR1实现对负载启动。The first device SCR1 of this embodiment is a semi-controlled device (semi-controlled switch). When a full-controlled device (full-controlled switch, or mechanical switch) is used, the second switch S2 can be omitted, and the control unit A can directly control The first device SCR1 realizes the start of the load.
本实施例，也可以采用多个单向导通器件，每路控制开关K分别串联单向导通器件DA，用于减少第二开关S2的工作负荷；控制单元A也可用于检测控制开关K断开，当控制开关K断开时，控制第一器件S1和第二开关S2导通，可实现对控制开关K灭弧。In this embodiment, multiple unidirectional conduction devices may also be used, and each control switch K is connected in series with the unidirectional conduction device DA to reduce the workload of the second switch S2; the control unit A may also be used to detect that the control switch K is disconnected When the control switch K is turned off, the first device S1 and the second switch S2 are controlled to be turned on, so that the control switch K can be extinguished.
以上实施例的控制单元A：优选内置一可编程器件(本发明可编程器件的定义：为微控制器、可编程逻辑器件等等同器件)。控制单元A内置控制程序的智能化单元，在不增加硬件资源或增加极少硬件资源的条件下，利用可编程器件实现电压检测、对第二开关S2导通的脉冲宽度控制和延时控制(控制单元存储有驱动负载脉宽及延时控制的时间参数)，有利于简化电路；共同端PC的电压信号连接至控制单元A(可编程器件)，控制单元A实时地了解(各路)半控型器件TR1(SCR1)是否截止，满足(多路)负载驱动所需的响应速度。The control unit A of the above embodiment: preferably has a programmable device built in (the definition of a programmable device in the present invention: a microcontroller, a programmable logic device, etc., the same device). The control unit A is an intelligent unit with a built-in control program. It uses programmable devices to realize voltage detection, pulse width control and delay control of the second switch S2 conduction without increasing hardware resources or adding very few hardware resources ( The control unit stores the time parameters of driving load pulse width and delay control), which is conducive to simplifying the circuit; the voltage signal of the common terminal PC is connected to the control unit A (programmable device), and the control unit A understands (each channel) in real time. Whether the control device TR1 (SCR1) is cut off to meet the response speed required by the (multi-channel) load drive.
J1可外接电源端口(用于提供控制单元A的工作能量，或用于提供第二电源，第二电源PB也可以采用另外电源，为可选；控制单元A的工作电源优选采用第一电源供电，且不作为第二电源输入时可省略)；J2为通信端口(可选)，用于传输和接收相关信息。J1 can be an external power port (used to provide the working energy of the control unit A, or used to provide the second power supply, the second power supply PB can also use another power supply, which is optional; the working power supply of the control unit A preferably uses the first power supply , And can be omitted when it is not used as the second power input); J2 is the communication port (optional), used to transmit and receive related information.
以上实施例，优选方案：The above embodiment, the preferred solution:
1、为节约不必要能耗，第一电源的电压设定为不具备驱动负载RY动作。1. In order to save unnecessary energy consumption, the voltage of the first power supply is set to not have the drive load RY action.
2、以上实施例优选第一电源的电压值小于或等于第二电源的电压值的1/2(至少节能75％)，为达到足够的维持电磁***(负载)的能量，建议不小于第二电源的电压值的1/10。2. In the above embodiments, the voltage value of the first power supply is preferably less than or equal to 1/2 of the voltage value of the second power supply (at least 75% energy saving). In order to achieve sufficient energy to maintain the electromagnetic system (load), it is recommended not to be less than the second power supply. 1/10 of the voltage value of the power supply.
3、第一开关S1的导通时间在10至100毫秒之间。3. The conduction time of the first switch S1 is between 10 and 100 milliseconds.
本发明启动装置，可作为一适用范围广、使用方便、批量化生产的产品，方便安全认证，普及推广使用，无需对原来电路动作逻辑进行改动，即可实施，极其有利于改变现有接触器、继电器、电磁阀、电磁铁节能技术难以普及的现状，可以把以上启动装置放置一外壳内，通过端子与外部控制开关K连接，其具体外形可以根据需要灵活设计。The starting device of the present invention can be used as a product with a wide range of application, convenient use, and mass production, convenient for safety certification, popularization and use, and can be implemented without changing the original circuit action logic, which is extremely beneficial to change the existing contactor , Relay, solenoid valve, electromagnet energy saving technology is difficult to popularize, the above starting device can be placed in a shell, connected to the external control switch K through the terminal, the specific shape can be flexibly designed according to needs.
以上实施例负载为接触器(继电器)等电开关。本发明中，任何驱动目标也可定义为负载，如电磁阀、电磁铁等。The load in the above embodiment is an electric switch such as a contactor (relay). In the present invention, any driving target can also be defined as a load, such as a solenoid valve, an electromagnet, and so on.
以上实施例，为减少电磁***的机械冲击，可以采用电容(放电，或充电)通过第一开关提供负载驱动脉冲能量，利用电容充电或放电的物理特性，实现减少电磁***的机械冲击。In the above embodiments, in order to reduce the mechanical impact of the electromagnetic system, a capacitor (discharge or charge) can be used to provide load driving pulse energy through the first switch, and the physical characteristics of capacitor charging or discharging are used to reduce the mechanical impact of the electromagnetic system.
采用本发明启动装置对现有电控***改造时，只要在原有控制开关上串联一二极管，原控制电源作为第二电源(如原来控制电源为交流时根据需要选择整流，或采用另外直流电源作为第二电源)，增加一小功率直流电源(可内置在控制单元A中，采用开关电源，或采用 工频变压器整流电源)作为第一电源即可，极其方便实施，推广使用。When using the starting device of the present invention to transform the existing electronic control system, as long as a diode is connected in series with the original control switch, the original control power supply is used as the second power supply (for example, when the original control power supply is AC, the rectifier can be selected as required, or another DC power supply can be used as the The second power supply), add a low-power DC power supply (which can be built into the control unit A, using a switching power supply, or a power frequency transformer rectified power supply) as the first power supply, which is extremely convenient for implementation and popularization.
以上实施例，实际应用中，当不采用对N1的电压检测，或不采用对控制开关K进行电流检测时，也可以采用控制开关K(如为继电器)的信号由控制单元A提供；或控制开关K的控制信号(可由J2通信口提供)传递至控制单元A；或控制开关K的辅助开关信号传递至控制单元A，实现控制单元A对第一开关S1导通控制。In the above embodiments, in practical applications, when the voltage detection of N1 is not used, or the current detection of the control switch K is not used, the signal of the control switch K (such as a relay) can also be used to provide the control unit A; or control The control signal of the switch K (provided by the J2 communication port) is transmitted to the control unit A; or the auxiliary switch signal of the control switch K is transmitted to the control unit A, so that the control unit A can control the conduction of the first switch S1.
以上实施例，控制开关可以为手动开关(按钮开关、船型开关、钮子开关)，或继电器(接触器)，或行程开关。In the above embodiment, the control switch can be a manual switch (button switch, rocker switch, toggle switch), or relay (contactor), or travel switch.
以上负载优选不具备单一电压(电源)工作能力的负载，即负载需要脉冲启动电压(第二电源)和维持电压(第一电源)两个电压(电源)才能正常工作。因为负载在具备单一电源工作能力的情况下，所需的成本更高、质量更大、体积更大。The above load is preferably a load that does not have a single voltage (power supply) operating capability, that is, the load requires two voltages (power supply) of the pulse start voltage (second power supply) and the sustain voltage (first power supply) to work normally. Because the load has the ability to work with a single power supply, the required cost is higher, the quality is larger, and the volume is larger.
以上实施例，第二开关优选采用半导体开关(全控型器件，三极管、场效应管、IGBT等，具有不限动作次数的优点)。第二开关建议采用限流开关(采用半导体电路组成的限流开关电路，包括恒流开关电路)，可限制驱动电流。In the above embodiments, the second switch preferably adopts a semiconductor switch (a fully-controlled device, a triode, a field effect tube, an IGBT, etc., which has the advantage of unlimited number of actions). The second switch is recommended to use a current-limiting switch (a current-limiting switch circuit composed of a semiconductor circuit, including a constant current switch circuit), which can limit the drive current.
以上实施例，第一电源和第二电源均为直流电源。In the above embodiment, the first power supply and the second power supply are both direct current power supplies.
综上所述，本发明具有以下优点：In summary, the present invention has the following advantages:
1、与传统的控制电路的高电压控制电源(单一电源供电)供电相比，低电压的第一电源作为***控制回路(二次回路)电源，其节能效果好，可大幅度减低控制回路各元器件的耐压指标及绝缘要求，有利于减低成本，减少体积、提高工作的可靠性；电脉冲启动负载，控制电路长期处于低电压工作状态，具有很高的安全性。1. Compared with the high-voltage control power supply (single power supply) of the traditional control circuit, the low-voltage first power supply is used as the system control loop (secondary loop) power supply, which has good energy-saving effect and can greatly reduce the control loop. The withstand voltage index and insulation requirements of the components are conducive to reducing costs, reducing volume, and improving working reliability; electric pulses start the load, and the control circuit is in a low-voltage working state for a long time, which has high safety.
2、第一开关为电压检测开关，用于检测控制开关闭合。利用控制开关闭合提供电压信号，并实现负载得到维持电压；控制开关也可用于切断负载的维持电压，适用范围广、电路简单。2. The first switch is a voltage detection switch, which is used to detect that the control switch is closed. The closed control switch is used to provide a voltage signal, and the load can be maintained voltage; the control switch can also be used to cut off the sustain voltage of the load, with a wide application range and simple circuit.
3、第一电源提供负载的维持电压，第二电源提供脉冲驱动负载，可降低电磁***线圈烧毁的风险，节能效果好。同时高电压(第二电源)启动负载，低电压(第一电源)提供负载维持电压，在第一电源、第二电源与负载之间线路较长且线径很细的条件下(可降低成本)，有效克服线损，稳定驱动负载。3. The first power supply provides the sustaining voltage of the load, and the second power supply provides pulse driving the load, which can reduce the risk of the electromagnetic system coils from burning out, and has a good energy-saving effect. At the same time, the high voltage (the second power supply) starts the load, and the low voltage (the first power supply) provides the load sustaining voltage. Under the condition that the line between the first power supply, the second power supply and the load is long and the wire diameter is very thin (can reduce the cost ), effectively overcome the line loss and stably drive the load.
4、由于控制开关的接通电流(闭合过程的电流)为维持电流，分断的电压为维持电压，根据通过控制开关分断电压低(如在机车行业，用于切除2A/110V DC与切除2A/30VDC的控制机械开关的价格差异最高可达几十倍以上，)的特点，控制开关可以选用额定工作电压低的开关。本发明可以有效降低控制开关成本和提高控制开关工作的可靠性。4. Since the making current of the control switch (the current in the closing process) is the maintenance current, and the breaking voltage is the maintenance voltage, according to the low breaking voltage through the control switch (for example, in the locomotive industry, it is used to cut 2A/110V DC and cut 2A The price difference of 30VDC control mechanical switches can be up to several tens of times, and the control switch can be a switch with a low rated working voltage. The invention can effectively reduce the cost of the control switch and improve the reliability of the control switch.
5、可以实现同一个启动装置用于多个不同规格接触器、继电器、电磁阀、电磁铁的驱动，或混合(接触器、电磁阀、电磁铁任二、或任三)驱动，适应范围广、通用性强，极有利于普及推广。5. The same starting device can be used to drive multiple contactors, relays, solenoid valves, and electromagnets of different specifications, or hybrid (any two or three contactors, solenoid valves, and electromagnets) drive, which has a wide range of applications , Strong versatility, extremely conducive to popularization and promotion.

Claims (15)

  1. 一种节能电路，控制开关、所需节能的负载组成第一串联电路，所述第一串联电路用于连接第一电源，其特征是：第一开关、所述负载组成第二串联电路，所述第二串联电路用于连接第二电源，所述第一电源的电压小于所述第二电源的电压；所述第一开关为电压检测开关，用于检测所述控制开关闭合；所述控制开关闭合，所述第二电源驱动所述负载，然后所述第一电源维持对所述负载供电。An energy-saving circuit. Control switches and loads required to save energy form a first series circuit. The first series circuit is used to connect a first power source. The first series circuit is characterized in that: the first switch and the load form a second series circuit. The second series circuit is used to connect a second power source, and the voltage of the first power source is less than the voltage of the second power source; the first switch is a voltage detection switch, and is used to detect that the control switch is closed; The switch is closed, the second power source drives the load, and then the first power source maintains power to the load.
  2. 根据权利要求1所述的节能电路，其特征是：所述负载不具备所述第一电源、所述第二电源任一单一电源工作能力。The energy-saving circuit according to claim 1, wherein the load does not have the working capability of either the first power supply or the second power supply.
  3. 根据权利要求1所述的节能电路，其特征是：所述第一串联电路通过一单向导通器件与所述第一电源连接。The energy-saving circuit of claim 1, wherein the first series circuit is connected to the first power source through a unidirectional conducting device.
  4. 根据权利要求1所述的节能电路，其特征是：所述第一开关为一半导体开关，或为一机械开关。The energy-saving circuit of claim 1, wherein the first switch is a semiconductor switch or a mechanical switch.
  5. 根据权利要求1所述的节能电路，其特征是：所述负载为继电器，或为接触器，或为电磁铁、或为电磁阀。The energy-saving circuit according to claim 1, wherein the load is a relay, or a contactor, or an electromagnet, or a solenoid valve.
  6. 根据权利要求1所述的驱动电路，其特征是：所述第一电源、所述第二电源为直流电源。The driving circuit according to claim 1, wherein the first power source and the second power source are DC power sources.
  7. 一种基于权利要求1至6所述的节能电路的启动装置，其特征是：其包括所述第一开关、第二开关、一控制单元，所述第二开关的控制信号由所述控制单元提供，所述第二电源通过所述第二开关与所述第二串联电路连接，所述第一开关、所述控制开关、所述负载数量为一，或一以上。A starting device based on the energy-saving circuit of claims 1 to 6, characterized in that it comprises the first switch, the second switch, and a control unit, and the control signal of the second switch is controlled by the control unit It is provided that the second power source is connected to the second series circuit through the second switch, and the number of the first switch, the control switch, and the load is one or more.
  8. 根据权利要求7所述的启动装置，其特征是：所述第一开关、所述第二开关连接的共同端的电压信号传递至所述控制单元。8. The starting device according to claim 7, wherein the voltage signal of the common terminal connected by the first switch and the second switch is transmitted to the control unit.
  9. 根据权利要求8所述的启动装置，其特征是：所述第一开关至少包括半控型器件、第一电容，所述负载两端或所述控制开关两端的电压通过所述第一电容耦合至所述半控型器件的触发极。The starting device according to claim 8, wherein the first switch includes at least a semi-controlled device and a first capacitor, and the voltage across the load or the control switch is coupled through the first capacitor To the trigger pole of the semi-controlled device.
  10. 根据权利要求8所述的启动装置，其特征是：包括光电耦合单元、第二电容，所述光电耦合单元、所述第二电容与所述共同端连接，所述电压信号通过所述光电耦合单元提供给所述控制单元。The starting device according to claim 8, characterized in that it comprises a photoelectric coupling unit and a second capacitor, the photoelectric coupling unit and the second capacitor are connected to the common terminal, and the voltage signal passes through the photoelectric coupling The unit is provided to the control unit.
  11. 一种基于权利要求1至6所述的节能电路的启动装置，其特征是：其包括所述第一开关，所述第一开关由第一器件、一控制单元组成，所述第一器件的控制信号由所述控制单元提供，所述控制单元检测所述控制开关与所述负载共同端的电压，所述控制单元用于检测所述控制开关闭合，所述第一器件、所述控制开关、所述负载数量为一，或一以上。A starting device based on the energy-saving circuit of claims 1 to 6, characterized in that it comprises the first switch, which is composed of a first device and a control unit, and the The control signal is provided by the control unit, the control unit detects the voltage at the common terminal of the control switch and the load, the control unit is used to detect that the control switch is closed, the first device, the control switch, The number of loads is one or more.
  12. 根据权利要求11所述的启动装置，其特征是：所述电压为所述控制开关两端的电压，或为所述负载的电压。The starting device according to claim 11, wherein the voltage is the voltage across the control switch or the voltage of the load.
  13. 一种基于权利要求1至6所述的节能电路的启动装置，其特征是：其包括所述第一开关，所述第一开关由第一器件、第二开关、一控制单元组成，所述第二电源通过所述第二开关、所述第一器件与所述负载连接，所述第一器件为半控型器件，所述第一器件的控制信号、所述第二开关的控制信号由所述控制单元提供，所述控制单元检测所述控制开关与所述负载共同端的电压，所述控制单元用于检测所述控制开关闭合，所述第一器件、所述控制开关、所述负载数量为一以上。A starting device based on the energy-saving circuit of claims 1 to 6, characterized in that it comprises the first switch, which is composed of a first device, a second switch, and a control unit, and The second power supply is connected to the load through the second switch and the first device. The first device is a semi-controlled device. The control signal of the first device and the control signal of the second switch are determined by The control unit provides that the control unit detects the voltage at the common terminal of the control switch and the load, the control unit is used to detect that the control switch is closed, the first device, the control switch, and the load The number is more than one.
  14. 根据权利要求13所述的启动装置，其特征是：所述第二开关、所述第一器件的共同端的电压信号传递至所述控制单元。The starting device according to claim 13, wherein the voltage signal of the common terminal of the second switch and the first device is transmitted to the control unit.
  15. 根据权利要求13所述的启动装置，其特征是：所述第二开关、所述第一器件的共同端连接限压器件。The starting device according to claim 13, wherein the common terminal of the second switch and the first device is connected to a voltage limiting device.
PCT/CN2020/103482 2020-01-31 2020-07-22 Energy-saving circuit and starting device WO2021151281A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN202010077740 2020-01-31
CN202010077740.0 2020-01-31
CN202010083417.4 2020-02-09
CN202010083417 2020-02-09
CN202010109559.3 2020-02-22
CN202010109559 2020-02-22

Publications (1)

Publication Number Publication Date
WO2021151281A1 true WO2021151281A1 (en) 2021-08-05

Family

ID=77078572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/103482 WO2021151281A1 (en) 2020-01-31 2020-07-22 Energy-saving circuit and starting device

Country Status (1)

Country Link
WO (1) WO2021151281A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361402A (en) * 2011-10-21 2012-02-22 广州金升阳科技有限公司 Switching power supply circuit
US20120146537A1 (en) * 2010-12-08 2012-06-14 Sheng-Hann Lee Variable-inductor electronic ballasts
CN104134998A (en) * 2014-08-05 2014-11-05 南京南瑞继保电气有限公司 Starting method and stopping method for static synchronous series compensator
CN204441888U (en) * 2015-03-20 2015-07-01 宋刚 A kind of two-wire electronic switch off-state power supply circuits and intelligent switch
CN108336901A (en) * 2012-12-28 2018-07-27 快捷半导体(苏州)有限公司 Start-up circuit
CN108962647A (en) * 2017-07-24 2018-12-07 广州市金矢电子有限公司 Direct current arc-control device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120146537A1 (en) * 2010-12-08 2012-06-14 Sheng-Hann Lee Variable-inductor electronic ballasts
CN102361402A (en) * 2011-10-21 2012-02-22 广州金升阳科技有限公司 Switching power supply circuit
CN108336901A (en) * 2012-12-28 2018-07-27 快捷半导体(苏州)有限公司 Start-up circuit
CN104134998A (en) * 2014-08-05 2014-11-05 南京南瑞继保电气有限公司 Starting method and stopping method for static synchronous series compensator
CN204441888U (en) * 2015-03-20 2015-07-01 宋刚 A kind of two-wire electronic switch off-state power supply circuits and intelligent switch
CN108962647A (en) * 2017-07-24 2018-12-07 广州市金矢电子有限公司 Direct current arc-control device

Similar Documents

Publication Publication Date Title
CN105428118A (en) Arc extinguishing device and non-arc switch
EP4394835A1 (en) Energy-saving control method for contactor
CN202586484U (en) Double-circuit power supply circuit having precharge function during electrification and high-voltage frequency converter
CN102931032B (en) Low-voltage AC/DC control and protection electrical appliance
CN102946106B (en) Silicon controlled rectifier combination switch
CN103972871A (en) Direct-current feeder non-arc switch with low power consumption and overcurrent and overvoltage protection function and method for implementing direct-current feeder non-arc switch
WO2021151281A1 (en) Energy-saving circuit and starting device
CN203250689U (en) Constant magnetic-holding alternating-current contactor control circuit
CN103247475B (en) Constant-magnetic maintaining AC contactor control circuit and control method thereof
CN202949231U (en) Intelligent zero-crossing switching silicon controlled combination switch
CN202363371U (en) Alternating-current high-voltage bistable permanent magnet contactor
CN208337164U (en) Capacitor switching combination switch control module
CN203552988U (en) High-voltage direct-current circuit breaker based on double switches
WO2021151282A1 (en) Energy-saving circuit and starting apparatus
CN214480541U (en) Bistable contactor capable of electrically switching on and off and automatically switching on
CN102683111A (en) Intelligent composite AC contactor
CN110658450A (en) Relay full-load test device and method for reducing energy consumption
CN203721637U (en) Composite switch
CN208747402U (en) Band-type brake control circuit and elevator device
WO2021151385A1 (en) Energy saving circuit and starting device
CN211318675U (en) Relay full load test device
CN203367136U (en) Controller with permanent-magnet mechanism
CN105895451A (en) AC/DC universal intelligent contactor
CN206195352U (en) Pole -mounted circuit -breaker complete set operating power source system
CN106444605B (en) Permanent magnet switch intelligent controller realized by PLC

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: 20917247

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: 20917247

Country of ref document: EP

Kind code of ref document: A1