WO2020001054A1 - Module de commande de circuit d'alimentation électrique - Google Patents

Module de commande de circuit d'alimentation électrique Download PDF

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Publication number
WO2020001054A1
WO2020001054A1 PCT/CN2019/076641 CN2019076641W WO2020001054A1 WO 2020001054 A1 WO2020001054 A1 WO 2020001054A1 CN 2019076641 W CN2019076641 W CN 2019076641W WO 2020001054 A1 WO2020001054 A1 WO 2020001054A1
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WO
WIPO (PCT)
Prior art keywords
capacitor
contactor
power supply
relay
transistor
Prior art date
Application number
PCT/CN2019/076641
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English (en)
Chinese (zh)
Inventor
覃锋
黄国生
李屹
Original Assignee
深圳光峰科技股份有限公司
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 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2020001054A1 publication Critical patent/WO2020001054A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device

Definitions

  • the invention relates to the technical field of power supply, and in particular to a power supply line control module.
  • the standby power consumption of the entire machine should be less than 0.5W. Cutting off the power supply of the entire power supply system will not be able to meet this requirement, and in normal work, it is necessary to supply power to these power supplies.
  • the existing solution is to manually disconnect the circuit breaker of the high-voltage power supply, which is dangerous and has a low degree of automation. .
  • the main purpose of the present invention is to propose a power supply line control module, which adopts a switching circuit composed of discrete components to achieve the effect of low voltage and small current control of high voltage and high current, reduces standby losses, has high cost performance, is safe and reliable, and has good versatility. .
  • the present invention provides a power supply line control module, which is connected between a circuit breaker and a load, and is characterized by comprising: an MCU, a switching circuit, and an AC contactor, wherein the switching circuit is disposed on the circuit breaker. Between the AC contactor and the AC contactor, the AC contactor is used to drive a load, and a control instruction issued by the MCU controls the on and off states of the switching circuit, and the switching state of the AC contactor is controlled by the switching circuit.
  • the switch circuit includes: a standby module U7, a resistor R475, a resistor R477, a capacitor C2, a capacitor C38, a capacitor C430, a diode D13, a MOS tube Q5, a transistor Q6, and a relay LS1, wherein the ACIL tube of the standby module U7 Pin is connected to the live line L of the filter output terminal, the ACIN pin of the standby module U7 is connected to the neutral line N of the filter output terminal, the V + pin of the standby module U7 is connected to one end of the capacitor C38, one end of the resistor R475, and one of the capacitor C2 One end, the cathode of diode D13, the + 5VSB power interface and one end of the coil of relay LS1 are connected.
  • the V-pin of the standby module U7 is grounded with the other end of capacitor C38, and the other end of capacitor C2 is connected to the anode of diode D13 and the transistor Q6.
  • the collector and the other end of the coil of relay LS1 are connected; the other end of resistor R475 is connected to the drain of MOS transistor Q5, the source of MOS transistor Q5 is connected to the base of transistor Q6, and the gate of MOS transistor Q5 is connected to resistor R477.
  • capacitor C430 and the control signal CTRL sent by the MCU the other end of capacitor C430 is grounded with the other end of capacitor R477 and the emitter of transistor Q6; one of the normally closed nodes of relay LS1 A1 coil end and the other end connected to the AC contactor neutral line N, a normally closed relay nodes LS1 is connected to the AC contactor coil terminal A3 is connected to the live wire L.
  • the parameter of the capacitor C38 is 220 ⁇ F
  • the parameter of the capacitor C2 is 0.1 ⁇ F
  • the parameter of the capacitor C430 is 0.1 ⁇ F / 100V.
  • the resistance value of the resistor R475 is 4.7K ⁇ , and the resistance value of the resistor R477 is 100K ⁇ .
  • the model of the transistor Q6 is MMBT222A, and the model of the MOS transistor Q5 is 2N7002.
  • the power supply system of the MCU is connected to the + 5VSB power interface.
  • the MOS transistor Q5 is turned on, the transistor Q6 is turned on, and the relay LS1 is closed.
  • the normally closed node of the relay LS1 is in a closed state, and a current flows through the coil of the AC contactor.
  • the main contact of the AC contactor is closed, and the main current supplies power to the load through the AC contactor.
  • control signal CTRL when the control signal CTRL is at a low level, the MOS tube Q5 is disconnected, the transistor Q6 is disconnected, the coil of the relay LS1 is de-energized, the normally closed node is disconnected, and the coil of the AC contactor is de-energized.
  • the main contact of the AC contactor is opened, and the load is powered off.
  • a power supply line control module provided by the present invention is connected between a circuit breaker and a load, and is characterized by comprising: an MCU, a switch circuit, and an AC contactor, wherein the switch circuit is disposed between the circuit breaker and the AC contact.
  • the AC contactor is used to drive the load, and the control command issued by the MCU controls the on and off states of the switching circuit, and the switching state of the AC contactor is controlled by the switching circuit.
  • the control signal sent by the MCU is low voltage
  • the current (using 5V power supply system) can be used to control the switching state of the 220V AC contactor.
  • the switching circuit composed of discrete components is used to achieve the effect of low voltage and small current control of high voltage and high current, reducing standby losses and high cost performance. , Safe, reliable and versatile.
  • FIG. 1 is a functional structure diagram of a power supply line control module according to an embodiment of the present invention
  • FIG. 2 is a circuit diagram of a switching circuit according to an embodiment of the present invention.
  • FIG. 3 is an internal structure diagram of an AC contactor according to an embodiment of the present invention.
  • a power supply line control module includes a circuit breaker, a filter, and an AC contactor connected in sequence, and further includes an MCU and a switching circuit, and the switching circuit is provided in the filtering. Between the contactor and the AC contactor, the ON and OFF states of the switching circuit are controlled according to control instructions issued by the MCU, and then the switching state of the AC contactor is controlled.
  • a switching circuit composed of discrete components is used to achieve the effect of low voltage and small current controlling high voltage and high current, reducing standby losses, high cost performance, safety and reliability, and good versatility.
  • the power supply line control module is adapted to close or cut off the load of the high-voltage and high-current circuit after giving a control signal; .
  • the cut-off signal sent by the MCU
  • the entire power supply system can achieve very low standby power consumption; after receiving the close signal, it automatically closes and enters the normal working state.
  • control signal sent by the MCU is a low voltage and small current (a 5V power supply system is used in this embodiment), which can be used to control the switching state of the 220V AC contactor, which achieves the effect of low voltage and small current controlling high voltage and high current. .
  • a power supply system as an example, including two 1800W power supplies and two 300W power supplies. If the power supply of these power supplies is not cut off, the system's standby power consumption is less than 0.5W. In normal operation, these power supplies need to be powered. During normal operation, the current of the entire power supply system reaches 27A and the voltage is 220V. This level of voltage and current is no longer suitable for manual control, and the control system in this embodiment can be used.
  • the MCU control system is powered by 3.3V, and 3.3V is converted from 5V.
  • the conversion efficiency from 5V to 3.3V is high.
  • 3.3V puts the MCU in sleep state during standby, and the power can be less than 0.5W.
  • the switch circuit includes: a standby module U7, a resistor R475, a resistor R477, a capacitor C2, a capacitor C38, a capacitor C430, a diode D13, a MOS transistor Q5, a transistor Q6, and a relay LS1,
  • the ACIL pin of the standby module U7 is connected to the live wire L of the filter output terminal
  • the ACIN pin of the standby module U7 is connected to the neutral wire N of the filter output terminal
  • the V-pin of the standby module U7 is grounded with the other end of the capacitor C38, and the other end of the capacitor C2 Connected to the anode of diode D13, the collector of transistor Q6 and the other end of the coil
  • the gate of the tube Q5 is connected to one end of the resistor R477, one end of the capacitor C430, and the control signal CTRL issued by the MCU.
  • the other end of the capacitor C430 is grounded together with the other end of the capacitor R477 and the emitter of the transistor Q6; relay L
  • One end of the normally closed node of S1 is connected to the neutral line N
  • the other end of the normally closed node of the relay LS1 is connected to the coil terminal A1 of the AC contactor
  • the coil terminal A3 of the AC contactor is connected to the live wire L.
  • the parameter of the capacitor C38 is 220 ⁇ F
  • the parameter of the capacitor C2 is 0.1 ⁇ F
  • the parameter of the capacitor C430 is 0.1 ⁇ F / 100V.
  • the resistance value of the resistor R475 is 4.7K ⁇ , and the resistance value of the resistor R477 is 100K ⁇ .
  • the model of the transistor Q6 is MMBT222A
  • the model of the MOS transistor Q5 is 2N7002.
  • the power supply system of the MCU is connected to the + 5VSB power interface.
  • the relay is a 5V relay.
  • the power supply system of the MCU and the power supply system of the relay can share the 5V system.
  • the 5V power supply system is very easy to obtain and very safe. In high-power applications, the requirement of standby power consumption less than 0.5W can be easily realized, avoiding wasting power when the whole machine is in standby.
  • A1 and A3 are the coil ports.
  • the coil When the AC power L and N are connected to A1 and A3, respectively, the coil generates a magnetic field.
  • the upper silicon steel sheet is subjected to magnetic force and moves downward. The magnetic force overcomes the elastic force of the spring, the moving contact moves down, and the dynamic and static contact come into contact; when there is no current in the coil, the elastic force of the spring moves the moving contact upward, and the dynamic and static contact opens.
  • the MOS transistor Q5 when the control signal CTRL is at a high level, the MOS transistor Q5 is turned on, the transistor Q6 is turned on, and the relay LS1 is closed.
  • the normally closed node of the relay LS1 is closed, and the coil of the AC contactor has a current flow.
  • the main contact of the AC contactor is closed, and the main current supplies power to the load through the AC contactor.
  • sequence numbers of the foregoing embodiments of the present invention are merely for description, and do not represent the superiority or inferiority of the embodiments.

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

Abstract

La présente invention concerne le domaine technique de l'alimentation électrique et concerne un module de commande de circuit d'alimentation électrique, comprenant un disjoncteur, un filtre, un contacteur à courant alternatif connectés en séquence, et comprenant en outre une MCU et un circuit de commutation. Le circuit de commutation est disposé entre le filtre et le contacteur à courant alternatif. Le circuit de commutation est commandé pour s'allumer et s'éteindre selon une instruction de commande émise par la MCU, de telle sorte que le contacteur à courant alternatif est commandé pour être allumé et éteint. Le circuit de commutation constitué de composants discrets est utilisé pour réaliser la commande d'un courant élevé haute tension par un faible courant basse tension, ce qui permet de réduire la perte de puissance en veille et d'obtenir une rentabilité, une sécurité, une fiabilité satisfaisantes ainsi qu'une bonne polyvalence.
PCT/CN2019/076641 2018-06-28 2019-03-01 Module de commande de circuit d'alimentation électrique WO2020001054A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810685344.9A CN110660613B (zh) 2018-06-28 2018-06-28 一种供电线路控制模块
CN201810685344.9 2018-06-28

Publications (1)

Publication Number Publication Date
WO2020001054A1 true WO2020001054A1 (fr) 2020-01-02

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CN (1) CN110660613B (fr)
WO (1) WO2020001054A1 (fr)

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CN113394053A (zh) * 2021-05-28 2021-09-14 联合汽车电子有限公司 车载继电器低边驱动电路
CN113555911A (zh) * 2021-08-03 2021-10-26 山东佐耀智能装备股份有限公司 一种基于相变材料储能中央空调电网调峰系统
CN113641202A (zh) * 2021-07-23 2021-11-12 温州联盈教育科技有限公司 面向高校教学用电源电路调节控制系统
CN113872259A (zh) * 2020-06-30 2021-12-31 比亚迪股份有限公司 接触器、直流充电配电盒及车辆

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CN205264605U (zh) * 2015-12-28 2016-05-25 北京新能源汽车股份有限公司 交流接触器的控制电路
CN106783395A (zh) * 2017-01-04 2017-05-31 江苏金坛绿能新能源科技有限公司 一种灭弧继电器及其灭弧方法

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CN103971991A (zh) * 2014-04-30 2014-08-06 中冶南方工程技术有限公司 一种外接的接触器节能装置
US20150348728A1 (en) * 2014-06-03 2015-12-03 Hamilton Sundstrand Corporation Method of redundant monitoring and protection of ac power generation channels
CN104599901A (zh) * 2015-02-03 2015-05-06 珠海格力电器股份有限公司 用于接触器的检测电路
CN205264605U (zh) * 2015-12-28 2016-05-25 北京新能源汽车股份有限公司 交流接触器的控制电路
CN106783395A (zh) * 2017-01-04 2017-05-31 江苏金坛绿能新能源科技有限公司 一种灭弧继电器及其灭弧方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872259A (zh) * 2020-06-30 2021-12-31 比亚迪股份有限公司 接触器、直流充电配电盒及车辆
CN113394053A (zh) * 2021-05-28 2021-09-14 联合汽车电子有限公司 车载继电器低边驱动电路
CN113394053B (zh) * 2021-05-28 2024-02-23 联合汽车电子有限公司 车载继电器低边驱动电路
CN113641202A (zh) * 2021-07-23 2021-11-12 温州联盈教育科技有限公司 面向高校教学用电源电路调节控制系统
CN113555911A (zh) * 2021-08-03 2021-10-26 山东佐耀智能装备股份有限公司 一种基于相变材料储能中央空调电网调峰系统
CN113555911B (zh) * 2021-08-03 2022-04-15 山东佐耀智能装备股份有限公司 一种基于相变材料储能中央空调电网调峰系统

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