CN200973192Y

CN200973192Y - Auto-controller of lighting

Info

Publication number: CN200973192Y
Application number: CN 200620011150
Authority: CN
Inventors: 肖鑫峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-18
Filing date: 2006-10-18
Publication date: 2007-11-07
Anticipated expiration: 2016-10-18

Abstract

The utility model discloses an illumination automatic controller, which comprises a power supply circuit, a micro-computer timer, a timer power supply circuit, a DC amplifying executing circuit and an automatic optical-control and acousto-optic alarming circuit. The utility model also comprises an over-voltage and an over-current protection circuits, wherein the over-voltage protection circuit is to add the power supply circuit transformer with the secondary loop (L3); the super-voltage induction current undergoes the voltage division, rectification and delayed amplification to activate the relay and break off the power supply; the over-current protection circuit is to connect on the power supply output in series with the current mutual inductor (HB); and the over-current induction voltage undergoes the voltage division, rectification and delayed amplification to activate the relay and break off the power supply, thereby playing the function of over-current and over-voltage protection and giving out the acousto-optic alarm.

Description

A kind of illumination automatic controller

Technical field

The utility model belongs to lighting controller.

Background technology

In the farming and animal husbandry production process, illumination is extremely important.For example laying hen is in laying period, require the light application time of every day must reach 16 hours, because the sunshine duration on daytime is not enough, also handy light carries out light filling, and carries out switch lamp according to the intensity of illumination in the hen house, the time of light filling is morning and evening two light filling preferably, as turning on light morning, daybreak turns off the light, and turns on light at dusk again, illumination reaches the time (16 hours) turns off the light again, finishes the illumination of whole day like this.Have a kind of its structure of timing light-operated switch to comprise in the market, power circuit, microcomputer time controller, timer power supply circuits, direct current amplify executive circuit and automatic light-operated circuit.Though this timing light-operated switch can reach the purpose of replenishing automatically, defective is when over-voltage and over-current occurring, can not play a protective role.Because the overwhelming majority is raised chickens the family all in the rural area; rural power grids are very chaotic by dress, management, lack regular maintenance; the overvoltage phenomenon often appears in the influence that adds thunder and lightning; also have the equipment of electricity consumption photograph, quality is low, and is lack of standardization by adorning; the short circuit overcurrent phenomenon often appears; therefore with phenomenon the lighter damaged line equipment, weight person causes the injury and the loss of personal property, is sought after the full automatic controller of the light-operated and over-voltage over-current protection function of a kind of timing.

Summary of the invention

The purpose of this utility model is a kind of illumination automatic controller that overvoltage, overcurrent protection function are arranged of design.

For addressing the above problem, structure of the present utility model is, it comprises that power circuit, microcomputer time controller, timer power supply circuits, direct current amplify executive circuit, automatic light-operated electricity and sound light alarming circuit, and its feature also comprises, overvoltage and current foldback circuit.Wherein:

Described overvoltage crowbar one is to increase secondary coil L on the power circuit transformer ₃, coil L ₃To first triode b utmost point, through e utmost point ground connection, first triode c utmost point is succeeded the electrical equipment normally-closed contact to induced current through first divider resistance, the second rectification triode, first delay capacitor, first voltage stabilizing didoe.When power input voltage raises, coil L ₃Voltage increases and makes first triode conducting, the relay adhesive, and normally-closed contact disconnects, and plays the overvoltage protection effect, and the normally opened contact closure is sent sound and light alarm.

Described current foldback circuit two is serial connection current transformer HB on power supply output line; current transformer secondary coil induced voltage is connected to second triode b utmost point through second divider resistance, second rectifier diode, second delay capacitor, second voltage stabilizing didoe; through e utmost point ground connection, second triode c utmost point engage relay normally-closed contact.When the output current overrate, make second triode conducting, the relay adhesive, normally-closed contact disconnects, and plays overcurrent protection, and the normally opened contact closure is sent sound and light alarm.

Description of drawings

Fig. 1 is the embodiment of the present application circuit theory diagrams, is over-voltage over-current protection circuit in the empty frame among the figure.

Among the figure: ZR ₂Be first divider resistance, ZR ₃Be second divider resistance, D ₁₀, D ₁₁Be first and second rectifier diode, C ₅, C ₆Be first and second delay capacitor, WD ₄, WD ₅Be first and second voltage stabilizing didoe, T ₅, T ₆Be first and second triode.

Embodiment

With reference to Fig. 1, describe circuit theory in detail.

(1) K switch ₁, resistance R, transformer B ₁, diode D ₁_ D ₄, capacitor C ₁, C ₂, integrated circuit (7812) IC constituted power supply stabilization circuit, resistance R ₁, Light-Emitting Diode LED ₁Constitute power indicating circuit, the secondary coil L of transformer B ₂On voltage through D ₁_ D ₄, C ₁Rectifying and wave-filtering IC voltage stabilizing obtains the 12V direct voltage and uses for late-class circuit.

(2) DSQ is a Timer with microprocessor, but its configuration switch lamp time, and when the 2 pin output high potential of the setting-up time DSQ that reaches " opening ", when the setting-up time that reaches " pass ", 2 pin recover electronegative potential: resistance R ₃, diode D ₅, resistance R ₂, voltage-stabiliser tube WD ₁, capacitor C ₇, C ₈Battery E has constituted the uninterrupted power supply circuit of Timer with microprocessor DSQ, under the normal situation of voltage, by R ₃Step-down is through WD ₁Voltage stabilizing is through D ₅, R ₂One the tunnel for the DSQ use, and another road provides charging current for battery E.When electric current had a power failure, battery E power supply kept the internally stored program of DSQ constant.

(3) resistance R ₆, triode T ₁, T ₂, diode D ₆, capacitor C ₉, relay J ₁Having constituted direct current amplifies and executive circuit.When reaching the setting-up time of " opening ", worker's pin output HIGH voltage of Timer with microprocessor DSQ, this voltage is through resistance R ₄Meet T ₁Base stage make T ₁, T ₂Conducting, relay J ₁Adhesive, J ₁Normally opened contact J _1-1, J _1-2, closure, 220V current input terminal IN, J ₁Two contact J _1-1, J _1-2Be connected to the defeated end of power supply OUT, make illumination work.Resistance R ₂, optical diode LED ₂Constituted working indicating, K ₃Be hand switch.

(4) resistance R ₈, voltage-stabiliser tube WD ₂, resistance R ₉, variable resistor ZR ₁, triode T ₃, T ₄And light-sensitive element LED ₃Constituted light-operated circuit.When intensity of illumination is reduced to WD gradually ₃Cut-off state the time, T ₃End T ₃The high-voltage signal of collector electrode is through D ₇, C ₄, R ₁₂Time-delay is again through R ₁₃Meet T ₄Base stage, T ₄T after the conducting ₁Base stage step-down current potential thereupon, T ₁, T ₂End relay J ₁Discharge J ₁Normally opened contact J _1-1, J _1-2Disconnection, lighting apparatus quits work, and at dusk, intensity of illumination dies down, and the light-sensitive element internal resistance increases, and A point current potential raises, when height arrives WD ₃Puncture voltage, WD ₃Conducting, T ₃Conducting thereupon, T ₃Collector electrode become electronegative potential, through capacitor C ₄And R ₁₃Time-lag action, T ₄Base stage also become electronegative potential, T ₄End T ₄Collector electrode, become high potential, T ₁Base stage recover high potential, T ₁, T ₁Conducting, J ₁Adhesive, lighting apparatus is resumed work.When arriving " pass " of timing, 2 pin of DSQ output electronegative potential, T ₁, T ₂End J ₁Discharge, lighting apparatus quits work.This moment T ₄Though the external high potential of collector electrode, because of diode D ₈Acting in opposition, do not influence T ₁The electronegative potential of base stage, T ₁, T ₂Still be in cut-off state.Thereby finished the darg program.

(5) transformer B ₁Secondary coil L ₃, resistance R ₁₅, variable resistor ZR ₂, diode D ₁₀, voltage-stabiliser tube WD ₄, triode T ₅Reach auxiliary circuit and constituted overvoltage crowbar, when input IN voltage raises, B ₁Secondary L ₃On voltage increase, this voltage is through R ₁₅, ZR ₂Dividing potential drop D ₁₀Rectification C ₅Time-delay is again through WD ₄Meet T ₅Base stage.Work as L ₃On voltage be raised to certain value (by ZR ₂Decision) WD ₄Puncture conducting, T ₅Conducting, relay J ₂Adhesive, J ₂Normally-closed contact outage quit work.Simultaneously, J ₂The normally opened contact closure, direct voltage one road device BZ taking alarm, the one tunnel through R ₄Sending and receiving optical diode LED ₂Indicate, another road is through R ₅, D ₉, WD ₄, and T ₅Base stage link to each other, make T ₅Safeguard and continue conducting.

(6) current transformer HB ₁, resistance R ₁₈, variable resistor ZR ₃, diode D ₁₁, voltage-stabiliser tube WD ₅, triode T ₆Reach auxiliary circuit and constituted current foldback circuit, when the overflow-type short circuit phenomenon appearred in lighting apparatus, the voltage on HB level of instrument transformer was through R ₁₈, ZR ₃Dividing potential drop, D ₁₁Rectification, C ₆Time-delay is after WD ₅Meet T ₆Base stage, work as L ₂On voltage meet or exceed set point (by ZR ₃Decision), WD ₅Puncture conducting, T ₆Conducting, J ₂Adhesive, the same overvoltage protection of the course of work.Play the purpose of overcurrent protection thus.Reply normally when electric current and voltage, remove and report to the police, current switch K ₁Close and got final product in 1 minute.

During installation with light-sensitive element LED ₃Be fixed on outdoorly with lead-in wire, ZR is adjusted in the place that not influenced by indoor light ₁Set suitable intensity of illumination.Timer is set that open morning and close evening, controller gets final product work.

Claims

1, a kind of illumination automatic controller, it comprises that power circuit, microcomputer time controller, timer power supply circuits, direct current amplify executive circuit, automatic light-operated electricity and sound light alarming circuit, its feature also comprises, overvoltage and current foldback circuit, wherein:

Described overvoltage crowbar is to increase secondary coil (L on the power circuit transformer ₃), coil (L ₃) to first triode b utmost point, through e utmost point ground connection, first triode c utmost point is succeeded the electrical equipment normally-closed contact to induced current through first divider resistance, the second rectification triode, first delay capacitor, first voltage stabilizing didoe;

Described current foldback circuit is to be connected in series current transformer (HB) on power supply output line; current transformer secondary coil induced voltage is connected to second triode b utmost point through second divider resistance, second rectifier diode, second delay capacitor, second voltage stabilizing didoe; through e utmost point ground connection, second triode c utmost point engage relay normally-closed contact.