CN208923821U

CN208923821U - A kind of intelligence is operated a switch contactor

Info

Publication number: CN208923821U
Application number: CN201821657020.6U
Authority: CN
Inventors: 芮胜骏; 刘海雄; 范进生
Original assignee: Wuxi San Pu Electric Power Technology Co Ltd
Current assignee: Wuxi San Pu Electric Power Technology Co Ltd
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2019-05-31
Anticipated expiration: 2028-10-12

Abstract

The utility model provides a kind of intelligence and operates a switch contactor and its control method, including power module, acquisition module, MCU main control module and module of operating a switch；Power module, for providing operating voltage to module of operating a switch, main control module；Acquisition module, for acquiring line voltage distribution；Main control module, for calculating the collected voltage of acquisition module；It operates a switch module, for operation of operating a switch.The utility model can gathering line road in real time voltage condition, if outside need triggering is operated a switch function, high-frequency is detected whether in dead-center position, it detects for the first time in zero point, it operates a switch with regard to operating module of operating a switch, substantially increases the service life of product, improve security performance.

Description

A kind of intelligence is operated a switch contactor

Technical field

It operates a switch contactor the utility model relates to electric field more particularly to a kind of intelligence.

Background technique

With popularizing for electric power, user is also higher and higher to the intelligent requirements of electric power.Intelligent contactor is electric system In an indispensable important component, however, traditional brake-pulling device, arbitrarily operates a switch, especially in crest voltage It is also easy to produce strong electric arc when operating a switch, easily feeler is destroyed and reduces product service life, has seriously threatened residential electricity consumption safety.

Utility model content

Purpose of utility model: the purpose of this utility model is that in view of the deficiencies of the prior art, providing one kind can draw It operates a switch again after prejudging dead-center position before lock, the service life for substantially increasing product is intelligently operated a switch contactor and its controlling party Method.

In order to reach above-mentioned purpose of utility model, the utility model is such completion: a kind of intelligence is operated a switch contactor, For the single-phase household electrical environment of AC 220V, it is characterised in that including power module, acquisition module, module of operating a switch and MCU master control mould Block, power module connect MCU main control module, and MCU main control module connects operate a switch module and acquisition module；

The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, by ACDC circuit by AC 220V DC 12V is changed into, is powered to relay in module of operating a switch, DC 3.3V circuit is then turned for 12V power conversion DC by DC 12V 5v, then 3.3V is converted to by 5V and is powered to the chip in main control module；

The acquisition module includes mutual inductor circuit, and the alternating current of 220V is passed through mutual induction of voltage for voltage value equal proportion It is contracted in the detectable range of ADC pin of MCU main control module, connects the ADC pin of MCU main control module；

The MCU main control module is with 72MHz full speed running, collection voltages V information；

Module of operating a switch is operated a switch.

Preferably, MCU main control module enhances cake core using STM32F103C8T6.

ACDC circuit and DC 12V in above-mentioned power module turn DC 3.3V circuit and belong to the prior art, Gu circuit Composition is no longer repeated, and MCU main control module is also the micro-control unit of the prior art, also known as one chip microcomputer.

To realize the utility model aim, provides a kind of intelligence and operate a switch contactor control method, it is characterised in that including Following steps: firstly, line voltage distribution is dropped to MCU in the case where normal power supply, using the mutual inductor of acquisition module by equipment In the detectable range of the ADC pin of main control module；

When external or inside is operated a switch, MCU main control module detects ADC pin voltage, passes through in house software The voltage V of algorithm, detection time t define k=V/t. as V=0, and k=0 is zero crossing at this time, high-frequency acquires the value of k, Signal is issued to module of operating a switch as k=0-0.01V/S, module of operating a switch implements operation of operating a switch.

The utility model has the beneficial effects that the utility model has the advantages that compared with traditional technology

1, the utility model the voltage condition of gathering line road can need when line electrical leakage, short circuit in real time Implementation operates a switch circuit come when protecting circuit safety, this equipment can detect whether to detect for the first time in dead-center position with high-frequency In zero point, operates a switch with regard to operating module of operating a switch, substantially increase the service life of product, improve security performance.

Detailed description of the invention

Fig. 1 is the structural block diagram of embodiment 1.

Fig. 2 is the circuit diagram of MCU main control module part.

Fig. 3 is the ACDC circuit diagram of power module.

Fig. 4 is that the DC 12V of power module turns DC 3.3V circuit diagram.

Fig. 5 is the circuit diagram of module of operating a switch.

Fig. 6 is the circuit diagram of acquisition module.

Specific embodiment

Embodiment 1: the contactor as shown in Figure 1, a kind of intelligence is operated a switch is used for the single-phase household electrical environment of AC 220V, feature It is to include power module, acquisition module, module of operating a switch and MCU main control module, power module connects MCU main control module, MCU master Control module connects operate a switch module and acquisition module；

The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, by ACDC circuit by AC 220V DC 12V is changed into, is powered to relay in module of operating a switch, DC 3.3V circuit is then turned for 12V power conversion DC by DC 12V 5v, then 3.3V is converted to by 5V and is powered to the chip in MCU main control module；

Module of operating a switch is operated a switch.

Embodiment 2: when line electrical leakage, short circuit, need to carry out circuit of operating a switch come when protecting circuit safety, the intelligence The alternating current of 220V is converted into the relay that direct current supplies electricity to operate a switch in module by the ACDC circuit of power module in contactor of capable of operating a switch Gas power supply, is converted into 3.3V direct current for the alternating current of 220V and supplies electricity to chip in MCU main control module powering, can also be with power module The alternating current of 220V is converted into the relay power supply that 12V DC supplies electricity to operate a switch in module, then 12V DC electricity is converted into 3.3V Direct current supplies electricity to the power supply of the chip in main control module, and the chip in main control module is that STM32F103C8T6 enhances cake core.Acquire mould Line voltage distribution will be dropped to ADC after voltage value scaled down by mutual induction of voltage using mutual inductor by the alternating current of 220V by block In the detectable range of pin, collection voltages V information；MCU main control module is calculated by collected voltage V, when calculating Detection time is t, and k=V/t, high-frequency acquires K value, as k=0-0.01V/S to module sending signal of operating a switch, module of operating a switch Implement operation of operating a switch.

Embodiment 3: in view of module of operating a switch has movement to postpone, due to being the alternating current of 50hz, the period is 20ms, so choosing Take operate a switch module complete once operate a switch operation time be 20Nms, N be 1 to 10 natural number, detect exchange zero point after, The equipment for module of operating a switch is completed just operate a switch in dead-center position when once-through operation timing node, substantially increases product Service life；The time that module of operating a switch completes primary operation of operating a switch is preferably 40ms, after detecting exchange zero point, two weeks It can just operate a switch when the node of phase.

Claims

The contactor 1. a kind of intelligence is operated a switch is used for the single-phase household electrical environment of AC 220V, it is characterised in that including power module, adopt Collect module, module of operating a switch and MCU main control module, power module connects MCU main control module, and MCU main control module connects module of operating a switch And acquisition module；

The power module includes that ACDC circuit and DC 12V turn DC 3.3V circuit, is changed into AC 220V by ACDC circuit DC 12V powers to relay in module of operating a switch, and then turns DC 3.3V circuit for 12V power conversion DC 5v by DC 12V, 3.3V is converted to by 5V again to power to the chip in MCU main control module；

The acquisition module includes mutual inductor circuit, and the alternating current of 220V is passed through mutual induction of voltage for voltage value scaled down In the range detectable to the ADC pin of MCU main control module, the ADC pin of MCU main control module is connected；

The MCU main control module is with 72MHz full speed running, collection voltages V information；

Module of operating a switch is operated a switch.
The contactor 2. a kind of intelligence according to claim 1 is operated a switch, it is characterised in that MCU main control module uses STM32F103C8T6 enhances cake core.