CN203826922U - An intelligent air switch device - Google Patents

An intelligent air switch device Download PDF

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Publication number
CN203826922U
CN203826922U CN201420223990.0U CN201420223990U CN203826922U CN 203826922 U CN203826922 U CN 203826922U CN 201420223990 U CN201420223990 U CN 201420223990U CN 203826922 U CN203826922 U CN 203826922U
Authority
CN
China
Prior art keywords
module
air switch
switch
voltage
chip processor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201420223990.0U
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Chinese (zh)
Inventor
宋远军
王�华
孔晓涵
张平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nanjing Power Supply Co of Jiangsu Electric Power Co
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nanjing Power Supply Co of Jiangsu Electric Power Co
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 State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Nanjing Power Supply Co of Jiangsu Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201420223990.0U priority Critical patent/CN203826922U/en
Application granted granted Critical
Publication of CN203826922U publication Critical patent/CN203826922U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/40Display of information, e.g. of data or controls

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  • Keying Circuit Devices (AREA)

Abstract

The utility model relates to an air switch apparatus, and belongs to the technical field of power supply control. The apparatus comprises an air switch which is in series connection in a live line and which controls on-off and a motor module driving the air switch to carry out-off switching. A front segment circuit and a rear segment circuit of the air switch are respectively provided with a signal acquisition terminal of a front voltage current module and a signal acquisition terminal of a rear voltage current module. Signal output terminals of the front voltage current module and the rear voltage current module are respectively connected with corresponding signal input terminals of a micro processing chip. A control output terminal of the micro processing chip is connected with a controlled terminal of the motor drive module through a drive module. A wireless communication terminal and a display communication terminal of the micro processing chip are respectively connected with a wireless communication module and a touch display screen. After the adoption of the intelligent air switch device of the utility model, control parameters such as self-recovery and protection values can be changed according to needs conveniently, and control can be carried out through a network, so that reliability of power supplying is substantially raised.

Description

Intelligent air switching device
Technical field
The utility model relates to a kind of switch, and especially a kind of air switching device, belongs to power supply control technical field.
Background technology
Air switch be a kind of take air as dielectric, manually or electric switch-on, snap close keep closing position, tripping mechanism effect is tripped and have the low tension switch of arc-control device, be widely used in 500V AC and DC device once, in circuit, play the fault currents such as connection, disjunction and carrying rated operational current and short circuit, overload.When overload, short circuit, lower voltage occurring in circuit or disappearing, air switch energy automatic shutdown circuit, realizes required protection.For a long time, in the following low voltage power distribution network of 500V, adopt the low tension switch that traditional snap close is combined with release to realize automatic switch-over circuit always.Yet, along with the non-linear equipments such as increasing frequency converter, electromagnetic oven are used, increasing sharply of nonlinear-load quantity, cause existing in low-voltage network a large amount of harmonic waves, voltage flicker, degradation problem temporarily, the number of times of air switch misoperation in low-voltage network is significantly raise, have a strong impact on the reliability of power supply.
Retrieval discovery, the Chinese utility model patent application that application number is 201210342670.2 discloses a kind of intelligent air switching system, and in this system, PLC ammeter connects the input of air switch, and the output of air switch connects PLC module; PLC ammeter is used for recording power information, and to PLC module, sends power information by air switch; PLC module also connects primary processor, for receiving power information, and power information is sent to primary processor; Primary processor also connects display module, for described power information is processed, and sends to display module to show result.Described air switch system, by integrated PLC module, primary processor and the display module of arranging on existing air switch, in the situation that not needing complicated installation, facilitates user to understand in time power information, and then rational utilization of electricity, electrical energy saving.
In addition; application number is that 201020137270.4 Chinese patent discloses a kind of Special-purpose air switch for intelligent electric energy meter, the moving contact with arc-extinguish chamber (3), overcurrent protection thermal relay (4), short-circuit protection coil (7), tripping mechanism (5), tripping coil (6), piezo-resistance (2), detection of electrical leakage coil (8), leak(age) test button (14), back-moving spring (1), low pass filter (9), bidirectional triode thyristor (13), voltage stabilizing didoe (12), is consisted of.The protective device of described Special-purpose air switch comprises the high-frequency filter circuit that the Γ shape low pass filter that is comprised of LC forms; By detection of electrical leakage coil and tripping coil, form leakage protection circuit; By short-circuited coil and overcurrent protection thermal relay, form overcurrent protection and short-circuit protection circuit; The overvoltage crowbar being formed by bidirectional triode thyristor, voltage stabilizing didoe; The lightning protection circuit being formed by piezo-resistance.
Yet; applicant thinks; above-mentioned prior art all exists from control difficult parameters such as recovery, protection values to change, can not participate in the problem of networking; its adjusting function is limited; cannot for example, by means of communication easily (WIFI, GPRS; or touch screen) to controlling threshold value, revise, can not, as one sees fit from main regulation, cause the reliability of power supply control not ideal enough.
Summary of the invention
The purpose of this utility model is: the problem existing for above-mentioned prior art, proposes a kind ofly can facilitate as required input control parameter, and can participate in the intelligent air switching device of networking, power supply reliability is high.
In order to reach above object, intelligent air switching device of the present utility model mainly comprises being connected on controls the air switch of break-make and the motor module that drives air switch to carry out break-make switching in live wire, in the leading portion of described air switch and back segment circuit, be respectively equipped with the signals collecting end of preposition and rearmounted electric current and voltage module, described signal output part preposition and rearmounted electric current and voltage module connects respectively the corresponding signal input of micro-chip processor, the control output end of described micro-chip processor connects the controlled end of described motor drive module by driver module, the wireless telecommunications end of described micro-chip processor and demonstration communication terminal connect respectively wireless communication module and touch display screen curtain.
Intelligent air switch of the present utility model has following functions:
The 1 control function that opens circuit: can obtain air switch two sections voltage, current signal value by preposition and rearmounted electric current and voltage sampling module, be transported in micro-chip processor, realize when current value higher than the overcurrent value arranging or magnitude of voltage lower than the under voltage value arranging, send signal to driver module, drive motors module disconnects air switch, and on display screen, show that air switch disconnects, by wireless communication module superior system, send current air switch and disconnected and disconnected the electric current and voltage instantaneous value signal that front electric current and voltage sampling module gathers.
2 networking superior system and the function that certainly restores electricity: after superior system is analyzed the electric current and voltage before disconnecting, show that electric current and voltage belongs in safe range, send the signal that restores electricity, be transferred to micro-chip processor, again by driver module drive motors module, merge air switch, restore electricity.After the electric current and voltage before disconnecting is analyzed, show that electric current and voltage does not belong in safe range, inverse signal is to wireless communication module, after micro-chip processor receives, keep air switch to disconnect, and show fault message on touch display screen curtain, prompting is manually got rid of.
3 can operation recovery function of supplying power: when the operation that restores electricity of operation touch display screen curtain, can carry signal to micro-chip processor, make it by driver module, order about motor module merging air switch and restore electricity.
Therefore, adopt after the utility model, can facilitate as required change to control parameter from recovery, protection value etc., and can control by networking, greatly improve power supply reliability.
Further, the transformer that described air switch leading portion is drawn, after single-phase rectifier, is exported respectively direct current and is entered mains switch and reserve battery module, and described reserve battery connects the power end of described micro-chip processor by power supply chip.Motor module has the first and second power ends, and described the first and second power ends connect respectively single-phase rectifier and reserve battery module.
Further again, the power supply of described micro-chip processor selects the power supply of controlling termination mains switch to select controlled end.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of an embodiment of the utility model.
Label in figure is expressed as: 1, air switch; 2, mains switch; 3, forward voltage current acquisition module (DAM-3505/T type, Beijing Art Technology Development Co., Ltd. sells); 4, transformer; 5, single-phase rectifier; 6, reserve battery; 7, power supply chip; 8, motor module; 9, driver module (seven-star worm board L298N type); 10, TMS320F2812 chip; 11, GPRS and WIFI module; 12, touch display screen curtain; 13, rearmounted electric current and voltage acquisition module.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described further.
In mainly comprising being connected on live wire, the switching device of intelligent air shown in Fig. 1 controls the air switch 1 of break-make and the motor module 8 that drives air switch to carry out break-make switching.In the leading portion of air switch 1 and back segment circuit, be respectively equipped with the signals collecting end of forward voltage current module 3 and rearmounted electric current and voltage module 13, the signal output part of preposition and rearmounted electric current and voltage module 3,13 meets respectively corresponding signal input ADCINA0-7, the ADCINB0-7 of TMS320F2812 micro-chip processor 10, the control output end PWM1-6 of micro-chip processor 10 connects the controlled end of motor drive module 8 by driver module 9, and then controls the switch motion of air switch 1.The wireless telecommunications end SCI mouth of micro-chip processor 10 connects GPRS and the WIFI module 11 as wireless communication module, display screen 12 is touched in the contact of its demonstration communication terminal I/O mouth, and touch display screen curtain adopts the high function touch screen of NT31C-ST142 (B)-V2 model.
In addition, the 220V/5V transformer 4 that air switch 1 leading portion is drawn is after single-phase rectifier 5, export respectively direct current and enter mains switch 2 and reserve battery module 6, reserve battery 6 connects the power end of TMS320F2812 micro-chip processor 10 by power supply chip 7, is its power supply.Motor module 8 has the first and second power ends, the first and second power ends connect respectively single-phase rectifier 5 and reserve battery module 6, the power supply that the power supply of TMS320F2812 micro-chip processor 10 selects control end PWM7-12 to connect mains switch 2 is selected controlled end, thereby control, this switch is powered by single-phase rectifier 5 or by 6 power supplies of reserve battery module, guarantee its reliably working.The mains switch 2 of the present embodiment is SP3T switch.
During work, electric current and voltage sampling module 313 obtains switch 1 two sections voltage, current signal value, be transported in TMS320F2812 chip 10, realize when current value higher than the overcurrent value arranging or magnitude of voltage lower than the under voltage value arranging, cut-off switch 1, and on touch display screen curtain 12, show that air switch disconnects, then send by GPRS and WIFI module 11 superior systems the signal that current air switch has disconnected and disconnected the electric current and voltage instantaneous value of front electric current and voltage sampling module 313 collections.
When operation touch display screen curtain 12, click the operation that restores electricity, touch display screen curtain 12 is carried signal to TMS320F2812 chip 10, TMS320F2812 chip 10 output signals, operation driver module 9, drive motors module 8, merges switch 1, restores electricity.
After the electric current and voltage before disconnecting being analyzed in superior system, show that electric current and voltage belongs in safe range, in 2s, send the signal that restores electricity, GPRS and WIFI module 11 are received after signal, are transferred to TMS320F2812 chip 10, TMS320F2812 chip 10 output signals, operation driver module 9, drive motors module 8, merges switch 1, restores electricity.After the electric current and voltage before disconnecting is analyzed, show that electric current and voltage does not belong in safe range, inverse signal, to GPRS and WIFI module 11, is transferred to TMS320F2812 chip 10, do not carry out and merge switch 1, and demonstration on touch display screen curtain 12 " exists fault to need manually to get rid of ".
In the time cannot connecting superior system, system, according to the electric current and voltage data that restored electricity last time, compares, as is less than upper secondary data,, after 10s, try to restore electricity, TMS320F2812 chip 10 output signals, operation driver module 9, drive motors module 8, merges switch 1, restores electricity.After restoring electricity, in 100ms, electric current and voltage is uprushed and is greater than limit value, TMS320F2812 chip 10 output signals, operation driver module 9, drive motors module 8, cut-off switch 1, and exist fault to need manually to get rid of to 12 transmission of touch display screen curtain, to GPRS and WIFI module 11, transmit " existing fault to need manually to get rid of " signal, and be sent to superior system.
By operation touch display screen curtain 12, overcurrent value, under voltage value are set.Or overcurrent value, under voltage value are set in superior system, then by GPRS and WIFI module 11, are transferred to TMS320F2812 chip 10.
In addition, when electric current and voltage sampling module 3,13 obtains respectively air switch 1 upper and lower two sections of voltages, current signal value and is transported in TMS320F2812 chip 10, when electric current and voltage sampling module 3 has voltage and current signal, TMS320F2812 chip 10 is controlled mains switch 2 by PWM7-12 output signal and is connected single-phase rectifier 5 and motor module 8.When electric current and voltage sampling module 3 no-voltage current signal, TMS320F2812 chip 10 is controlled mains switch 2 by PWM7-12 output signal and is connected reserve battery 6 and motor module 8.Simultaneously; because TMS320F2812 controls mains switch 2 by the output of PWM mouth; therefore can realize the latch-up protection to circuit: when the power-off of higher level's circuit; forward voltage current acquisition module 3 does not collect signal; and as there is distributed power source in home network; and generate electricity; make circuit in home network have electricity; rearmounted electric current and voltage acquisition module 13 collects signal and returns; micro-chip processor will directly pass through PWM mouth output signal; disconnecting power switch 2, guarantees not occur the abnormal anti-power transmission accident that misoperation causes.
As can be seen here, adopt after the hardware circuit of the present embodiment intelligent air switching device, power supply adjusting function is more perfect, reliable, and tool has the following advantages:
1, system operation limit can be by the input of network or touch-screen and convenient change, has self-recovering function after power-off, can automatically adjust power-off limit value according to long-term power-off data;
2,, owing to controlling motor module by motor drive module, therefore can realize the circuit breaker lock that prevents abnormal anti-power transmission;
3, adopt motor module to make service speed rapider, service life is longer, overhauls convenient;
4, the setting of WIFI and GPRS network interface has realized networking transfer of data and the control of intelligent air switch easily.

Claims (4)

1. an intelligent air switching device, comprise being connected on and in live wire, control the air switch of break-make and the motor module that drives air switch to carry out break-make switching, it is characterized in that: the signals collecting end that is respectively equipped with preposition and rearmounted electric current and voltage module in the leading portion of described air switch and back segment circuit, described signal output part preposition and rearmounted electric current and voltage module connects respectively the corresponding signal input of micro-chip processor, the control output end of described micro-chip processor connects the controlled end of described motor drive module by driver module, the wireless telecommunications end of described micro-chip processor and demonstration communication terminal connect respectively wireless communication module and touch display screen curtain.
2. intelligent air switching device according to claim 1, it is characterized in that: the transformer that described air switch leading portion is drawn is after single-phase rectifier, export respectively direct current and enter mains switch and reserve battery module, described reserve battery connects the power end of described micro-chip processor by power supply chip, motor module has the first and second power ends, and described the first and second power ends connect respectively single-phase rectifier and reserve battery module.
3. intelligent air switching device according to claim 2, is characterized in that: the power supply of described micro-chip processor selects the power supply of controlling termination mains switch to select controlled end.
4. intelligent air switching device according to claim 3, is characterized in that: described mains switch is SP3T switch.
CN201420223990.0U 2014-05-04 2014-05-04 An intelligent air switch device Expired - Fee Related CN203826922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420223990.0U CN203826922U (en) 2014-05-04 2014-05-04 An intelligent air switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420223990.0U CN203826922U (en) 2014-05-04 2014-05-04 An intelligent air switch device

Publications (1)

Publication Number Publication Date
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Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104836189A (en) * 2015-04-14 2015-08-12 华南理工大学建筑设计研究院 Electric protective device capable of being self reset and remotely reset and method thereof
CN105356621A (en) * 2015-12-22 2016-02-24 南京思飞捷软件科技有限公司 Air switch, system for air switches and working procedure
CN113078034A (en) * 2021-04-26 2021-07-06 福建工程学院 Household air switch device capable of automatically switching on after tripping and control method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104836189A (en) * 2015-04-14 2015-08-12 华南理工大学建筑设计研究院 Electric protective device capable of being self reset and remotely reset and method thereof
CN104836189B (en) * 2015-04-14 2018-01-26 华南理工大学建筑设计研究院 It is a kind of can Self-resetting and remote reset electric protective device and its method
CN105356621A (en) * 2015-12-22 2016-02-24 南京思飞捷软件科技有限公司 Air switch, system for air switches and working procedure
CN105356621B (en) * 2015-12-22 2018-05-15 南京思飞捷软件科技有限公司 A kind of air switch and air switch system and workflow
CN113078034A (en) * 2021-04-26 2021-07-06 福建工程学院 Household air switch device capable of automatically switching on after tripping and control method
CN113078034B (en) * 2021-04-26 2023-04-21 福建工程学院 Air switch device for automatic closing after tripping for household and control method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140910

Termination date: 20150504

EXPY Termination of patent right or utility model