CN2445507Y - Power automatic controller for facsimile apparatus - Google Patents

Abstract

The utility model relates to a power automatic controller for a facsimile machine, which comprises a box body. The utility model is characterized in that a telephone line, the input port and the output port of a power line, a power switch K1, and AN are arranged on the box; a circuit board is arranged in the box; the circuit is provided with a signal receiving circuit which is composed of a full bridge S2 which is composed of resistors R3 R9, and diodes D5-D8, a capacitor C5, a potentiometer W2, an integrated block IC1, transistors T2 T4, a relay J1, etc., a time delay control circuit which is composed of a potentiometer W1, a capacitor C6, resistors R5 R8 R, a triode T3, relays J2 J3, etc., a monitoring circuit which is composed of a full bridge S1 which is composed of a resistor R< L >, and diodes D1 D4, a potentiometer W1, a photoelectric coupler H, etc., and a voltage control circuit. The utility model has the advantages that the energy consumption can be reduced, and the service life of the facsimile machine can be prolonged.

Description

The facsimile machine power supply automatic controller

The utility model relates to a kind of power control, especially the facsimile machine power supply automatic controller.

Facsimile machine is a kind of active office equipment, and it need consume certain electric energy, even during standby, and the electronic rate that also approximately will consume 10-20W.General no staff on duty facsimile machine in the office, the power supply of facsimile machine often places normally open, and this has not only accelerated the aging of facsimile machine, has shortened useful life, also consumes appreciable electric power resource virtually.In addition, the instability of power supply grid occurs sometimes round the clock that pressure reduction can reach more than 150 volts, does not reach the voltage scope of application of facsimile machine, often burns out the situation of facsimile machine, has caused extra financial burden to the user, and has influenced normal use again.

The purpose of this utility model is to provide a kind of facsimile machine power supply automatic controller, and it can make facsimile machine when work connect automatically or cut off the electricity supply and alarm bell when not working, and does not need staff on duty, has saved the energy, has prolonged facsimile machine useful life.

The purpose of this utility model is achieved in that a kind of facsimile machine power supply automatic controller, includes a box body, and box body is provided with telephone wire input port L ₁With L ₂, mains electricity input end mouth A ₁With A ₂, meet facsimile machine output port of power source A ₃With A ₄, meet facsimile machine signal line output port L ₃With L ₄And mains switch K ₁With push-button switch AN, be provided with circuit board P in the box, it is characterized in that circuit board P is provided with signal receiving circuit, delay control circuit, facsimile machine work observation circuit and voltage control circuit, described signal receiving circuit is by resistance R ₃With R ₉, four diode D ₅-D ₈The full-bridge S that constitutes ₂, filter capacitor C ₅, adjustable potentiometer W ₂, time base ic chip ₁, three plate pipe T ₂With T ₄, relay J ₁Deng composition; Described delay control circuit is by adjustable potentiometer W ₃, electrochemical capacitor C ₆, resistance R ₅R ₈R ₁₀, triode T ₃, relay J ₂With J ₃, diode D ₁₁Deng composition; Described facsimile machine work observation circuit is by sample resistance R _L, four diode D ₁-D ₄The full-bridge S that constitutes ₁, adjustable potentiometer W ₁, photoelectronic coupler H, triode T ₁, capacitor C ₁With C ₃, resistance R ₁, electrochemical capacitor C ₂With C ₄, second tube sheet D ₉With D ₁₀, integrated package of pressure-stabilizing IC ₂Deng composition; Described voltage control circuit is by triode T ₃, resistance R ₈With R ₁₀With diode D ₁₁Form.

This utility model is reasonable in design, assembling is simple, easy to use, cost is low, have energy-conservation, prolong the facsimile machine practical value in useful life.

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

Fig. 1 is the utility model front view.

Fig. 2 is a circuit diagram of the present utility model.

Its operation principle is as follows: by phone wire input port L ₁With L ₂The input bell signal is through resistance R ₃Step-down, D ₅-D ₈The full-bridge S that forms ₂Rectification, filter capacitor C ₅After the filtering, positive voltage is by potentiometer W ₂Be added to triode T ₂Base stage, make T ₂Resistance R is passed through in conducting ₄With T ₂The integrated IC that collector electrode links to each other ₁2. pin become electronegative potential, IC ₁The internal circuit upset, IC ₁3. pin output high potential, through resistance R ₉Be added to triode T ₄Base stage, T ₄Conducting is with T ₄The relay J that collector electrode links to each other ₁Adhesive, facsimile machine power supply and holding wire are connected respectively, have finished signal reception work; Simultaneously, by potentiometer W ₃With capacitor C ₆The time-delay of forming is partly started working, and positive voltage passes through W ₃To C ₆C is worked as in charging ₆Positive pole/IC ₁6. 7. pin voltage reaches IC ₁8. 2/3 of pin voltage o'clock, IC ₁The internal circuit upset, IC ₁3. pin output electronegative potential, T ₄End J ₁Disconnect, facsimile machine power supply and holding wire are cut off respectively; When facsimile machine is in when receiving with transmit status, the machine operation of facsimile machine, source current is apparently higher than holding state, at this moment, voltage sampling resistor R _LThe voltage at two ends raises, through D ₁-D ₄The full-bridge S that forms ₁, the wave-wave capacitor C ₁After the filtering, by potentiometer W ₁Be added to the luminous tube two ends of photoelectronic coupler H, luminous tube brightness increases, and the receiving tube resistance diminishes, and positive supply is through resistance R ₁, be added to triode T by receiving tube ₁Base stage, T ₁Conducting is with T ₁The relay J that links to each other of collector electrode ₂Adhesive, the capacitor C of time-delay this moment part ₆Cathode voltage passes through resistance R ₅Discharge makes ic chip ₁2. pin current potential can not be higher than 2/3 of 8. pin current potential, then J ₁All the time adhesive, facsimile machine works on, after hours, the stall of facsimile machine motor, voltage sampling resistor R _LBoth end voltage descends, and the brightness of photoelectronic coupler H luminous tube reduces, and it is big that the receiving tube resistance becomes, triode T ₁End relay J ₂Disconnect, then capacitor C ₆Begin charging again, work as C ₆Cathode voltage reaches ic chip ₁2/3 o'clock of 8. pin voltage, IC ₁3. pin output electronegative potential, triode T ₄End relay J ₁Disconnect, the facsimile machine dump reaches effect energy-conservation and the protection facsimile machine.When needs outwards send fax, as long as click by resistance R ₆With ic chip ₁The push-button switch AN that links to each other of 2. pin, ic chip ₁2. pin become electronegative potential, 3. pin output high potential, triode T ₄Conducting, relay J ₁Adhesive, facsimile machine energising work, simultaneously, facsimile machine working state monitoring part also brings into operation, and keeps facsimile machine work, after the work for the treatment of is finished, cuts off the facsimile machine power supply by the time-delay control section.

Claims (2)

1. a facsimile machine power supply automatic controller includes a box body, and box body is provided with telephone wire input port L ₁With L ₂, mains electricity input end mouth A ₁With A ₂, meet facsimile machine output port of power source A ₃With A ₄, meet facsimile machine signal line output port L ₈With L ₄And mains switch K ₁With button switch AN, be provided with circuit board P in the box body, it is characterized in that: circuit board P is provided with signal receiving circuit, delay control circuit, facsimile machine work observation circuit and voltage control circuit.

2. power supply automatic controller according to claim 1 is characterized in that: described signal receiving circuit is by resistance R ₂R ₃R ₄R ₆R ₇R ₉R ₁₀, four diode D ₅-D ₈The full-bridge S that constitutes ₂, filter capacitor C ₅, adjustable potentiometer W ₂, time base ic chip ₁, triode T ₂With T ₄, relay J ₂Deng composition, its incoming line mouth L ₁With resistance R ₃An end link to each other R ₃The other end and incoming line mouth L ₂Respectively with full-bridge S ₂Two ac input ends link to each other full-bridge S ₂Positive output end and filter capacitor C ₅An end and adjustable potentiometer W ₂An end join W ₂The other end and triode T ₂Base stage, resistance R ₂An end link to each other R ₂The other end and triode T ₂The equal ground connection of emitter, T ₂Collector electrode connect resistance R ₄An end, R ₄The other end, resistance R ₇An end and resistance R ₆An end connect time base ic chip jointly ₁2. pin, R ₇Another termination IC ₁8. pin, R ₆The end of another termination push-button switch AN, IC ₁5. pin connect capacitor C ₇An end, 3. pin connecting resistance R ₉An end, R ₉Another termination triode T ₄Base stage, T ₄Grounded emitter, T ₄Collector electrode and relay J ₁One end of pull-in winding, resistance R ₁₀An end link to each other J ₁The other end of pull-in winding and IC ₁8. pin link to each other IC ₁4. pin and capacitor C ₈Positive pole, diode D ₁₂Positive pole link to each other D ₁₂Negative pole meet IC ₁8. pin, IC ₁6. link to each other with 7. pin; Described delay control circuit is by adjustable potentiometer W ₃, electrochemical capacitor C ₆, resistance R ₅R ₈, triode T ₃, relay J ₂With J ₃, diode D ₁₁, its capacitor C ₆Positive pole, adjustable potentiometer W ₃An end, resistance R ₅An end altogether and IC ₁6. 7. pin link to each other potentiometer W ₃Another termination IC ₁8. pin, C ₆Minus earth, R ₅The other end and relay at J ₂The fixed contact of often opening connect J ₂Moving contact ground connection, resistance R ₁₀The other end and diode D ₁₁Negative pole link to each other D ₁₁Positive pole meet triode T ₃Base stage and resistance R ₈An end, R ₈The other end and T ₃Emitter connect+the 9V power supply on, T ₃Collector electrode meets IC ₁8. pin on, incoming line mouth L ₁With relay J _1-2Second group of moving contact link to each other, often open fixed contact for second group and meet delivery outlet L ₃, incoming line mouth L ₂Directly and delivery outlet L ₄Link to each other; Described facsimile machine work observation circuit is by sample resistance RL, four diode D ₁-D ₄The full-bridge S that constitutes ₁, adjustable potentiometer W ₁, photoelectronic coupler H, triode T ₁, capacitor C ₁With C ₃, resistance R ₁, electrochemical capacitor C ₂With C ₄, diode C ₉With C ₁₀, integrated package of pressure-stabilizing IC ₂Deng composition, its ac power input end mouth A ₁Meet mains switch K ₁An end, K ₁The other end and the input of transformer B 1., sample resistance R _LAn end and full-bridge S ₁An input link to each other R _LThe other end and full-bridge S ₁Another input and power output A ₄Link to each other full-bridge S ₁Positive output end and capacitor C ₁An end and adjustable potentiometer W ₁An end join full-bridge S ₁Negative output termination C ₁The other end, and join with the luminous tube negative pole of photoelectronic coupler H, the luminous tube positive pole of photoelectronic coupler H meets W ₁The other end, the receiving tube negative pole of photoelectronic coupler H meets triode T ₁Base stage, T ₁Grounded emitter, T ₁Collector connecting relay J ₂Control coil one end, J ₂The control coil other end and resistance R ₁One termination+9V power supply, R ₁The receiving tube positive pole of another termination photoelectronic coupler H, power input mouth A ₂Connect 2. pin and the relay J of transformer B _1-1First group of moving contact, J _1-1First group often open fixed contact and meet output port of power source A ₃, the low-voltage output centre tap of transformer B is pin ground connection 4., 3. pin and 5. pin respectively with diode D ₉With D ₁₀Positive pole join D ₉And D ₁₀Negative pole link to each other, and with electrochemical capacitor C ₂Positive pole, capacitor C ₃One end, integrated package of pressure-stabilizing IC ₂1. pin join IC ₂2. pin ground connection, 3. pin meets electrochemical capacitor C ₄Positive pole, C ₄Negative pole, C ₂Negative pole and C ₃The equal ground connection of the other end, K switch ₂Succeed electrical equipment J _1-2Second group of moving contact with often open fixed contact; Described voltage control circuit is by triode T ₃, resistance R ₈With R ₁₀With diode D ₁₁Form.