CN2220207Y - Automatic curtain machine cabable of remote control - Google Patents

Abstract

The utility model discloses an optical automatically-controlled and infrared remote-controlled curtain device. The utility model is composed of ten parts of an outdoor light detecting circuit, an indoor light detecting circuit, a threshold comparing circuit, an infrared remote-controlled emitting circuit, an infrared remote-controlled receiving circuit, a logic controlling circuit, a driving circuit, a state detecting circuit, an actuating mechanism and a power circuit, the structure of the complete machine, etc. According to the outdoor intensity of illumination and the lighting condition of indoor ambient, the utility model can automatically control the opening and the closing of a double-layer curtain, and the controlling characteristic is fitting to the sitting habits of people's normal life. Meanwhile, the utility model can manually control the opening and the closing of the curtain and can set the state of the curtain, and all the operations are carried out by an infrared remote controller with flexible and convenient use. The utility model adopts the technology of full electronic control and detection is additionally provided with an anti-skid device with an idler wheel, and thus the complete machine has the advantages of strong functions, stable and reliable performance, simple structure, long service life, etc. The length of the guide rail and the drag rope of the utility model is slightly adjusted, and thus the utility model which has simple production and process can be assembled into curtain machines with different forms and specifications.

Description

Remote-controlled full-automatic window curtain driving mechanism

The utility model relates to the curtain open/close control device that adopts photoelectric technology to realize.

At present, all kinds of electronic and remote-controlled curtain machines have appearred both at home and abroad.Its characteristics only are to drive replacement staff stay cord with micro machine, and the switching of curtain still needs the people to operate.Simultaneously, also occurred relying on photoelectric device to control the device that curtain opens and closes automatically.Because have defective on mentality of designing and the scheme, light measuring method and circuit structure are too simple, can only finish the function of opening silk tree daytime qualitative, roughly, there is a big difference with people's normal life daily life custom.The user needs constantly to adjust or manual intervention is carried out in the folding of curtain according to indoor lighting situation and the custom of oneself, thereby greatly reduces practical value, even has lost automatic meaning fully.In addition, because of control circuit is simple, have to use the electric mechanical switch as band mechanical contacts such as relay, limit switches, both reduced reliability and service life, give structural design again, production, assembling and debugging are made troubles.

The purpose of this utility model provides a kind of remote-controlled full-automatic window curtain driving mechanism that can overcome above-mentioned defective.It can be by the comprehensively relatively differentiation to indoor and outdoor light power, and generation really meets the control signal of the normal daily life custom of people automatically, handles curtain and opens and closes.And can carry out manual intervention to curtain by infrared remote controller, arbitrarily set the state and the position of curtain.Simultaneously, by strengthening the electronic control circuit function, simplify drive mechanism, its reliability is improved, performance strengthens, and is easy for installation, uses flexibly, and is easy to make processing.

According to interior decoration development trend and the people requirement to indoor lighting, the utility model can be controlled major and minor two-layer curtain according to the different light conditions of indoor and outdoor.Wherein: main curtain has been meant UV light in the isolating chamber, and thicker close internal layer curtain, secondary curtain refer to be the outer high light of attenuation chamber by day, more frivolous outer curtain.

The utility model is made up of outdoor optical detection circuit 1, room light testing circuit 2, thresholding comparison circuit 3, infra-red remote control radiating circuit 4, infrared remote control receiving circuit 5, logic control circuit 6, drive circuit 7, state detection circuit 8, executing agency's (transmission mechanism 9, actuating motor 11) and power circuit 100 parts; Wherein, the signal output part of outdoor optical detection circuit 1, room light testing circuit 2 respectively with thresholding comparison circuit 3 in main curtain opening threshold compataror, the main curtain input of closing threshold compataror and secondary curtain threshold compataror join; The control end of thresholding comparison circuit 3 outputs and logic control circuit 6 joins, and the input of the signal output part of logic control circuit 6 and drive circuit 7 joins, and the switching device of drive circuit is serially connected in the electric power loop of actuating motor 11; In addition, the control end of logic control circuit 6 also joins with infrared remote control receiving circuit 5 and the output that is serially connected in the state detection circuit 8 in actuating motor 11 electric power loops respectively.Like this, thresholding comparison circuit 3 just can provide control (triggering) signal for respectively logic control circuit 6 according to output signal power outdoor, room light testing circuit 1,2, so that logic control circuit 6 starts by drive circuit 7 or closes actuating motor 11, actuating motor drives major and minor curtain opening by transmission mechanism 9 or closes.

Concrete scheme of the present utility model is as follows:

1. outdoor optical detection circuit adopts precision operational-amplifier to form logafier, has both guaranteed low light level detection sensitivity, and circuit is saturated when avoiding high light to detect again.Its output voltage is directly proportional with the logarithm of incident intensity.Can very detect bat-flying low-light delicately, can adapt to the high light of the positive period of the day from 11 a.m. to 1 p.m in summer again and guarantee to have bigger detection range.With light-sensitive device and the accurate testing environment illumination of precision operational-amplifier intensity, as the foundation of controlling the curtain action automatically, guaranteed curtain opening and closed accurately and reliably with this.

2. mainly to act on be light conditions in the monitoring room to the room light testing circuit, and compare with outdoor incident intensity.Particularly dusk is to m seq, when indoor lighting arranged, and makes indoor intensity of illumination greater than outdoor, promptly when seeing indoor people's activities clearly, sends control signal outdoor, closes main curtain.

The thresholding comparison circuit with the indoor and outdoor light detecting signal with preset thresholding and compare, produce main curtain and secondary curtain and open automatically and shutdown signal.For improving antijamming capability, the destabilizing factor when eliminating curtain switching conversion critical state all adopts the double threshold comparison circuit.

Main curtain automatic shutter signal is produced by outdoor optical detection circuit, room light testing circuit and thresholding comparison circuit.When outdoor light intensity is higher than main curtain preset opening thresholding A1, and indoor light intensity compares when being lower than preset proportion K with outdoor, and threshold compataror produces main curtain opening signal; Preset and close thresholding A2 when outdoor light intensity is lower than main curtain, and indoor light intensity compares when being higher than preset proportion K with outdoor, threshold compataror produces main curtain shutdown signal.The setting of opening thresholding A1 is higher than closes thresholding A2.Open thresholding A1, close thresholding A2 and ratio K can distinguish independent setting.Secondary curtain automatic shutter signal is produced by outdoor optical detection circuit and thresholding comparison circuit.When outdoor light intensity is higher than when presetting secondary curtain and closing thresholding B2, produce shutdown signal.And when outdoor light intensity is lower than secondary curtain preset opening thresholding B1, produce start signal.Opening thresholding B1 can manually set.Close thresholding B2 with opening thresholding B1 automatic setting.

Curtain opening and close the setting range that presets thresholding and taken into full account people daily daily life custom and daylighting requirement under the auto state.

A. early morning master's curtain opening thresholding A1 setting: in case that outdoor light is injected is indoor, in the time of can making indoor intensity of illumination satisfy basic daylighting to require, curtain is just opened automatically.

B. dusk, master's curtain was closed the setting of thresholding A2: in the time of at dusk, people's indoor activity is many than early morning, closes curtain too early and can allow the people be difficult to adapt to.Therefore, close thresholding and should simultaneously, close thresholding and will be higher than a minimum limit value, guarantee that main curtain is not subjected to the interference of outdoor light after darkness, close reliably far below opening thresholding.

C. the setting of indoor and outdoor light intensity preset proportion K: when dusk is indoor lighting arranged, outdoor when seeing indoor situation clearly, main curtain is closed.Because it is lower that main curtain is closed thresholding setting value, so closing of main curtain will be determined by preset proportion K this moment.

D. the setting of secondary curtain switching on daytime thresholding B: when outdoor sunshine is strong, close secondary curtain automatically, otherwise curtain is opened automatically.Open thresholding a little less than closing thresholding.Thresholding B setting range broad, the user can arbitrarily be provided with according to custom.

The infra-red remote control radiating circuit be provided with main curtain unlatching, close, automatically/unlatching of manual conversion and secondary curtain, close, automatically/operated keys such as manual conversion, these six control signals can be encoded, modulated, and be transmitted to the infrared remote control receiving circuit by infrared emission tube.Wherein, automatic/manual switching signal can be set to auto state or manual state by control circuit.All control operations to window curtain driving mechanism are all undertaken by six press keys.

5. infrared remote control receiving circuit is reduced into corresponding six kinds of control signals with the infrared signal demodulation that receives, and exports to logic control circuit.

6. logic control circuit is with the automatic unlatching of six tunnel control signals and threshold compataror generation, and shutdown signal converts the driving signal of drive motors running to.

A. when control circuit is set to manual state: the opening and closing of major and minor two-layer curtain are all finished by pressing on the infrared remote controller corresponding operating key.Button operation one touches and gets final product.Trigger the back curtain and move voluntarily, until opening or closing fully.Also can in the curtain running, press same key once more, curtain is parked in any centre position.Easy and simple to handle random.

B. when control circuit is set to auto state: automatic start signal and shutdown signal control automatically that the switching of curtain produces by the thresholding comparison circuit.Curtain changes automatic adjustment state according to ambient lighting fully.At this moment, the manual unlatching on the infrared remote controller, it is still effective to close button, so that manual intervention curtain state during particular case.

C. being provided with of control circuit auto state or manual state will be undertaken by the automatic/manual conversion keys on the infrared remote controller.Main curtain key and secondary curtain key are independently set state separately respectively, and are shown by the status indicator lamp on the circuit box.

7. drive circuit adopts the running of light-operated bidirectional triode thyristor control reversible electric machine.Because no mechanical contact, reliability improves greatly, and misoperation is few, drives simply, and volume is little, and the life-span is long.Control circuit and motor power are isolated fully, and be safe and reliable.

Executing agency's power adopts reversible ac synchronous motor, directly mains-supplied.Compare with adopting direct current generator, save links such as step-down, rectification, filtering, volume reduces, designs simplification.

8. state detection circuit uses photoelectrical coupler, and its input inserts the motor power loop, and the output signal of output is delivered to logic control circuit.Determine the duty of executing agency by detecting motor working current.Main effect is as follows:

A. when curtain moved to complete opening or closes fully, motor rotation was obstructed, and electric current increases suddenly, and state detection circuit produces the reset enable signal logic control circuit and resets.Motor shuts down.Need not mechanical limit switch and can effectively detect motor operating state.Simplify executing agency's structure.

B. monitor motor ruuning situation constantly.When executing agency occurs unusually, when excessive, state detection circuit resets logic control circuit as curtain resistance in service, and the protection motor is not damaged.

9. executing agency of the present utility model is very succinct.The operation of curtain affects the slide block in the guide rail to realize by rope.Guide rail one end horizontal setting driving wheel is directly driven by alternating current generator at a slow speed.Guide rail other end horizontal setting driven pulley.Drag rope is around on the two-wheeled.If limited block is installed at the guide rail middle part, curtain can open and close to the centre relatively from two ends.If do not adorn limited block on the guide rail, but curtain Xiang Yiduan opens and closes.Owing to do not have limit switch,, can be assembled into the window curtain driving mechanism of different size as long as change the length of guide rail and rope.

For fundamentally eliminating the skidding between driving wheel and the drag rope, except that driving wheel employing elastomeric material is manufactured, on driving wheel, set up a roller, utilize spring to produce a positive pressure F, drag rope is pressed against on the driving wheel, increases the frictional force between driving wheel and the drag rope.Even through long-term tractive, rope becomes and very relaxes, and still can guarantee not have skidding.Both increase the controllability and the reliability of curtain operation, guaranteed the accuracy that state detection circuit detects again.

10. all control circuit is divided into four parts, and wherein: the power unit of drive circuit, state detection circuit and entire circuit and motor together are contained in the control box of window curtain driving mechanism one end.Room light testing circuit, Threshold detection circuit, infrared remote control receiving circuit and logic control circuit are contained in the same circuit box, link by multicore main signal cable and control box, circuit box is suspended from window curtain driving mechanism by an indoor side, and the sensitive surface of circuit state indicator lamp, room light detection means and infrared receiver spare all points to an indoor side.The auto state curtain presets the thresholding setting knob and places the circuit box back side.Outdoor smooth detection head is independent of outside the agent structure, and built-in outdoor optical detection circuit links by light detecting signal cable and control box.Volume is small and exquisite, and the side direction installing hole is arranged, and attached adhesive sticker on the sensitive surface frame can be installed on the window frame or directly and sticks on the glass pane.The infra-red remote control radiating circuit is contained in the remote controller, and remote control distance is more than 10 meters.

The utility model has been compared following advantage with existing all kinds of window curtain driving mechanisms:

1. can be fully automatically according to the unlatching of ambient lighting situation control double-layer window curtain, closure.Control characteristic is fully according to the design of the normal daily life custom of people.Convenient, practicality.

2. employing great dynamic range, intensity of illumination outside the high sensitivity optical detection circuit sensing chamber has improved the photometry performance greatly, for auto state down accurately the action of control curtain foundation is provided.

3. has the indoor light function for monitoring.Can be under the outdoor situation that can see indoor people's activity clearly, particularly when the colour of sky darker, indoor when lighting is arranged, the automatic close window curtain.

4. adopt the double threshold circuit to improve circuit state upset reliability, avoid misoperation.

5. each threshold value all can be adjusted in bigger zone of reasonableness, and the user can be by the wish setting of controlling oneself.

6. adopt infrared remote controller to carry out curtain opening, closure and circuit state setting etc. are operation all.Still can the manual switching of intervening curtain under auto state.Curtain can be set in any centre position.Use very convenient random.

7. adopt reversible at a slow speed ac synchronous motor.Directly civil power drives.Simplified structure.

8. all adopt photoelectric coupled device between control circuit and the motor.Realize the thorough isolation between the strong and weak electricity, be perfectly safe.

9. adopt Electronic Control and detection technique means to greatest extent.Defectives such as it is short both thoroughly to have eliminated the life-span that electric mechanical switch brings, and reliability is low.Simplify electromechanical structure again greatly.And has an electric motor protecting function.

10. on driving wheel, install the roller shoe additional, thoroughly eliminate the skidding between drag rope and the driving wheel.

11. the transmission mechanism structure is succinct, the production assembling is easy flexibly.The length that only need adjust guide rail and drag rope promptly can be made into the product of different size.Other parts can be designed to standarized component.Maintain easily, improve and produce and installation effectiveness.

Below in conjunction with following each accompanying drawing realization of the present utility model is further described:

Fig. 1 is the annexation figure of circuit unit of the present utility model and transmission mechanism;

Fig. 2 is the electrical schematic diagram of each circuit unit of the utility model, and wherein, Fig. 2 A is the electrical schematic diagram of outdoor optical detection circuit 1, room light testing circuit 2 and thresholding comparison circuit 3; Fig. 2 B is the electrical schematic diagram of infrared remote control receiving circuit 5 and logic control circuit 6; Fig. 2 C is the electrical schematic diagram of infra-red remote control radiating circuit 4, drive circuit 7, state detection circuit 8, power circuit 10 and actuating motor 11 (circuit symbol M51 and M52);

Fig. 3 is that the actuating motor 11 of executing agency and the structure and the installation of transmission mechanism 9 concern schematic diagram, wherein Fig. 3 A has reflected the correlation of actuating motor 11 with transmission mechanism, roller shoe, Fig. 3 B has shown the structure of roller shoe, and Fig. 3 C has shown the structure of guide wheel-slide block walking mechanism;

Fig. 4 is a complete machine structure schematic diagram of the present utility model.

Fig. 1 has embodied the annexation of critical piece of the present utility model (circuit unit), and it is made up of the executing agency that outdoor optical detection circuit 1, room light testing circuit 2, thresholding comparison circuit 3, infra-red remote control radiating circuit 4, infrared remote control receiving circuit 5, logic control circuit 6, drive circuit 7, state detection circuit 8, power circuit 10, actuating motor 11 and transmission mechanism 9 constitute.Wherein, the signal output part of outdoor optical detection circuit 1, room light testing circuit 2 respectively with thresholding comparison circuit 3 in the main curtain input of closing threshold compataror, main curtain opening threshold compataror and secondary curtain threshold compataror join; The control end of the output of thresholding comparison circuit 3 and logic control circuit 6 joins; The input of the signal output part of logic control circuit 6 and drive circuit 7 joins; The switching device of drive circuit (light-operated bidirectional triode thyristor) is serially connected in the electric power loop of actuating motor 11; The control end of logic control circuit 6 also joins with infrared remote control receiving circuit 5 and the output that is serially connected in the state detection circuit 8 in actuating motor 11 electric power loops respectively in addition.Thresholding comparison circuit 3 just can be according to light intensity signal control logic control circuit 6 outdoor, that room light testing circuit 1,2 detects like this, start by drive circuit 7 then or close actuating motor 11, make actuating motor 11 drive major and minor curtain openings or close by transmission mechanism 9.

Fig. 2 has shown the electric structure of each circuit unit among Fig. 1.With reference to Fig. 2 A, outdoor optical detection circuit 1 is made up of photodiode PH11, operational amplifier IC11, diode D11, potentiometer W11, resistance R 11～R13, R214, capacitor C 11, C12.Wherein, PH11 and load D11 thereof are connected to the IC11 positive input terminal, and D11 can be considered a nonlinear resistance, and its C-V characteristic makes IC11 output voltage amplitude of variation be directly proportional with the logarithm of incident intensity.W11 is connected to negative input end and the output of IC11, gain adjustable.R12, R13 are connected to the IC11 negative input end, and R13 plays temperature compensation function.Logafier of they common compositions, output voltage is a benchmark with supply voltage VCC, and negative sense changes, and promptly the relative VCC of the strong more output voltage of incident light is low more.Output signal is divided four tunnel comparator IC21:A～IC21:D inputs of exporting to room light testing circuit 2 and thresholding comparison circuit 3 respectively.Room light testing circuit 2 is made up of comparator IC21:C, phototriode PH21, potentiometer W23, diode D22, resistance R 24～R26, R210, R212, R216, R217 and capacitor C 22.R217, D22 connect the IC21:C output, and are connected to the positive input terminal of IC21:C through R216.The negative input end of IC21:C connects the output of IC11 through R215, and output is connected to the R end of IC22.R24～R26, W23 are the laod network of PH21, and its output is connected to the positive input terminal of IC21:C, and IC21:C imports the indoor light intensity signal of outdoor light detecting signal and PH21 detection.When indoor light intensity signal when outdoor, its output R-S trigger IC22 can be resetted by force (closing curtain).W23 is that indoor and outdoor light intensity preset proportion is adjusted potentiometer, can adjust when outdoor light darker, the indoor opportunity that curtain is closed when lighting is arranged.Thresholding comparison circuit 3 is made up of comparator IC21:A, IC21:B, IC21:D, R-S trigger IC22, inverter ic 23:A～IC23:F, diode D21,1D31～D34, potentiometer W21, W22, W24, resistance R 21～R23, R27～R29, R31～R34, R211, R213, R215, capacitor C 21, C23, C24, C31～C34.The positive input terminal of IC21:A, IC21:B and the negative input end of IC21:D connect the output of IC11 through R215.R21, W21, R22, W22, R23 and R27, W24, R28 are serially connected in the positive and negative end of power supply respectively, and the negative input end of IC21:A, IC21:B and the positive input terminal of IC21:D are connected on the sliding end of W21, W22, W24 respectively.IC21:B is main curtain opening threshold compataror, and its input compares outdoor light detecting signal and the unlatching threshold voltage of being determined by W22, and the TRIG end of output termination IC22 can be with IC22 set (unlatching curtain); IC21:A is that main curtain is closed threshold compataror, and the IHR end of its output termination IC22 can make IC22 reset (closing curtain), and threshold voltage is closed in the W21 decision; IC2I:D forms secondary curtain threshold compataror, and threshold value is set by W24.D21 connects the IC21:D output and links to each other with the IC21:D positive input terminal by W24.Adding D21 is lower than the unlatching threshold value and closes threshold value, improves the circuit antijamming capability.IC23:A～IC23:F with IC22 and IC21:D represent main curtain open (high level) automatically with secondary curtain, close (low level) the output signal shaping, separate.Wherein, the input of the output of IC22 and IC23:A, IC23:B, output are connected in series.Input, the output of IC21:D output and IC23:C, IC23:D, IC23:E, IC23:F are connected in series.Four differential circuits are formed in D31～34, C31～34, R31～34, the output of IC23:A, IC23:B, IC23:E, IC23:F extracts the rising edge of four road signals respectively through differential circuit, again through IC31:A, IC31:B, IC32:A, IC32:B shaping, form main curtain opening, close, secondary curtain opening, close four the tunnel and control narrow pulse signal automatically, export to logic control circuit 6.With reference to Fig. 2 B, logic control circuit 6 is made up of NAND gate IC31:A～IC31:C, IC32:A～IC32:C, d type flip flop IC33:A, IC33:B, IC34:A, IC34:B, inverter ic 43:E, IC43:F.IC33:A and IC34:A are the unlatching trigger of major and minor curtain, and IC33:B and IC34:B are the trigger of closing of major and minor curtain, control curtain opening respectively and close after being set.The reversed-phase output of IC33:A, IC33:B, IC34:A, IC34:B is connected to T51～T54 respectively.Positive output end links to each other with separately D end through IC31:C, IC32:C.Guarantee that the opening and closing trigger can not be set simultaneously.The D end of IC33:A, IC33:B and IC34:A, IC34:B links to each other with IC32:A, IC32:B input with IC31:A, IC31:B with IC43:F through IC43:E respectively.Effect is at curtain opening or closes and seal automatic control signal in the running, guarantees can not produce misoperation because of the curtain motion changes indoor light.Infrared remote control receiving circuit 5 is made up of infrared ray reception, demodulator IC41, decoder IC42, inverter ic 43:A～IC43:D or door IC44:A～IC44:D, photodiode PH41, LED 41, LED42, triode T41, T42, diode D41～D48, resistance R 41～R49, R410～R415, capacitor C 41～C49, C410～C413.PH41 is connected to the PH end of IC41.The IN end of the OUT termination IC42 of IC41.The signal that IC41, IC42 receive PH41 carries out being reduced to corresponding six tunnel manual signals after demodulation, the decoding, the A of IC42, B end is exported automatic/manual switching signal of major and minor curtain, is connected to the input of IC31:A, IC31:B and IC32:A, IC32:B respectively.Be manual state during low level, can seal the automatic control signal of corresponding major and minor curtain.High level is an auto state, sends ruddiness and green glow demonstration corresponding state through T41, T42 driving LED 41, LED42; Other four output C～F of IC42 export the manual signal of major and minor curtain, reach the two-way differential circuit of being made up of D41～D48, C46～C49, C410～C413, R48, R49, R410～R415 through IC43:A～IC43:D respectively and extract rising, trailing edge.By IC44:A～IC44:D shaping, convert level signal to major and minor curtain manual narrow pulse signal again.Export to the CLK end of IC33:A, IC33:B, IC34:A, IC34:B.With reference to Fig. 2 C, infra-red remote control radiating circuit 4 is made up of coding, modulator IC71, button K71～K76, transistor T 71, LED 71, diode D71, D72, resistance R 71～R73, capacitor C 71～C74.Main curtain automatically/manual conversion, secondary curtain automatically/manual conversion, main curtain opening, close, secondary curtain opening, close six tunnel manual signals and import by K71～K76 respectively.K71～K76 is connected to A～F end of IC71.After IC71 encodes, modulates signal, export T71 to by OUT end, amplify through T71, driving LED 71 is launched signal.Drive circuit 7 is made up of triode T51～T54, light thyrister form photoelectrical coupler OPT51～OPT54, resistance R 51～R58, capacitor C 53, C54.The input of OPT51～OPT54 inserts T51～T54 output loop respectively.OPT51, OPT52 and OPT53, OPT54 output insert motor M 51 and M52 electric power loop respectively.The OPT52 that OPT51 that T51 drives and T52 drive can make running of motor M 51 forwards and antiport respectively, the OPT52 that OPT53 that T53 drives and T54 drive makes running of motor M 52 forwards and antiport, wherein during the T51 conducting, the light emitting diode that drives among the OPT51 triggers the conducting of bi-directional light controllable silicon, thereby connect the motor power loop, make main actuating motor M51 forward running, main curtain opening.And during the T52 conducting, trigger the OPT52 conducting, and M51 is with antiport, and main curtain is closed.In like manner T53, T54, OPT53～OPT54 will drive secondary actuating motor and open and close secondary curtain.C53, C54 are the motor shift capacitor.Because the electricity that adopts light emitting diode to trigger between light controllable silicon realization control circuit and the motor power is isolated, electrical insulation capability and antijamming capability have been improved greatly, state detection circuit 8 is by photoelectrical coupler OPT55, OPT56, comparator IC51:A, IC51:B, diode D51, D52, potentiometer W51, W52, resistance R 35, R36, R59, R510～R512, R517, R518, capacitor C 35, C36, C51, C52, C55, C56 forms, wherein OPT55 and OPT56 input insert the electric power loop of motor M 51 and M52 respectively, output is connected to IC51:A and IC51:B negative input end, and IC51:A and IC51:B output are connected to d type flip flop IC33:A respectively, IC33:B and IC34:A, the SD end of IC34:B.When M51 or M52 electric current increased, the output voltage of IC51:A or IC51:B was during by high step-down, and d type flip flop IC33:A and IC33:B or IC34:A and IC34:B are reset, and motor shuts down.W51, W52 are adjustable reduction position initial control level.Power circuit 10 is made up of transformer B1, rectifier DB, three terminal regulator IC61, capacitor C 61, C62.

The course of work of control circuit is: all operations of window curtain driving mechanism is undertaken by the button K71～K76 on the remote controller.Coding, modulator IC71 are to pairing six signals coding of button, modulation, amplify through triode T71, be transmitted to photodiode PH41 by infrarede emitting diode LED71, infrared reception, demodulator IC41 is with signal amplification, demodulation and export to decoder IC42, its six output terminals A～F output corresponding six operations of button K71～K76 input.K71, K72 be major and minor curtain automatically/manual conversion keys, after being pressed, IC42 output terminals A or B output high level, main curtain or secondary curtain will be in auto state, at this moment, LED 41 or LED42 are lighted in triode T41 or T42 conducting.Pressed once more when this key, curtain will be in manual state.So alternately.As making main curtain opening, can press button K73, the C end output level upset of decoder IC42 correspondence.If level is uprised by low, C46, D41, R48 will extract its rising edge; If level by high step-down, through inverter ic 43:B paraphase, extracts its trailing edge by C47, D42, R49, a warp or a door IC44:A shaping become narrow pulse signal, so whenever press K73 one time, IC44:A will export a burst pulse, make d type flip flop IC33:A state turnover once.Therefore,, can make IC33:A set when pressing K73, motor M 51 runnings, main curtain opening is pressed K73 again, and IC33:A will be reset, and the motor operation stops, and curtain can be parked in the centre position, continues to press K73, and curtain moves once more, opens fully until curtain.In like manner, the same operation that K74, K75 and K76 correspondence that main curtain is closed, secondary curtain opening and secondary curtain are closed.No matter curtain is in manual control or auto state, and these operations are all unaffected.

Under the auto state, when early morning, the daylight was gradually bright, outdoor illumination variation increased the electric current among the photodiode PH11 gradually.Amplifier IC11 output voltage reduces gradually from VCC (supply voltage), the positive input voltage of main curtain opening threshold compataror IC21:B decreases, when being lower than inverting input unlatching thresholding preset voltage, output voltage is uprised by low, makes R-S trigger IC22 set.This signal is after two phase inverter shapings, the differential circuit of being made up of D31, C31, R31 extracts rising edge, form a narrow pulse signal, make d type flip flop IC33:A set, form main curtain opening signal, trigger photoelectrical coupler OPT51 through triode T51 and make motor M 51 forward rotation, main curtain opening.Behind main curtain complete opening, motor M 51 operations are obstructed, and electric current increases, and through photoelectrical coupler OPT55, makes comparator IC51:A output voltage by high step-down, and IC33:A resets with d type flip flop, and motor M 51 stops operating automatically.The daylight is gradually dark at dusk, electric current reduces gradually among the photodiode PH11, amplifier IC11 output voltage gos up, at this moment, if indoor have a lighting, electric current is bigger among the phototriode PH21, and the positive input voltage of comparator IC21:C is lower than reverse input end voltage, output resets output low level by force with R-S trigger IC22; If during indoor no lighting, darker up to the colour of sky, amplifier IC11 output voltage is lower than the main curtain of being determined by W21 when closing threshold voltage, and comparator IC21:A exports high level, and R-S trigger IC22 is resetted.The reset signal of IC22 is through inverter ic 23:A paraphase, shaping, and the differential circuit of being made up of C32, R32, D32 extracts its trailing edge, forms narrow pulse signal, makes D trigger IC33:B set, motor M 51 antiports, and main curtain is closed automatically.When if daytime, particularly high noon, daylight was stronger, amplifier IC11 output voltage is lower than the secondary curtain of being determined by W24 and closes threshold voltage, comparator IC21:D output voltage is uprised by low, extract through shaping, separation, rising edge, make d type flip flop IC34:B set, motor M 52 antiports, secondary curtain will be closed automatically.After intensity of sunshine weakened, comparator IC21:D reverse input end voltage went up gradually, when being higher than positive input voltage, output voltage is extracted through shaping, paraphase, separation, trailing edge by high step-down, makes d type flip flop IC34:A set, the running of motor M 52 forwards, secondary curtain is opened automatically.

During manual state, the low level that decoder IC42 output terminals A or B produce will make NAND gate IC31:A, IC31:B or corresponding main curtain or the secondary curtain automatic control signal of IC32:A, IC32:B sealing.At this moment, the operation of curtain will be controlled by button K73～K76 only.

Coding, modulator IC71 adopt LC2190, and infrared reception, demodulator IC41 adopt CX20106, and decoder IC42 adopts LC2200, and the R-S trigger adopts time base circuit NE555.

Fig. 3 has shown the structure of executing agency (9,11).Wherein: 11. actuating motors; 12. driving wheel; 13. driven pulley; 14. anti-skidding roller: can rotate with the drag rope direction of motion; 15. anti-skidding roller frame: the gap between anti-skidding roller and the driving wheel is changed with drag rope; 16. roller rotating shaft; 17. roller frame rotating shaft; 18. spring holder; 19. spring: an end is fixed on the spring holder, and the other end is fixed on the roller frame, and its torsion can make anti-skidding roller press to driving wheel; 20. drag rope; 21. guide rail; 22. slide block: connect guide rail and curtain, and curtain is slided along guide rail; 23. guide wheel: roll support slipper along the guide rail inside groove; 24. curtain link; 25. guide rail limited block: can be fixed on the guide rail middle part, make the two-way relative folding of curtain.Also can omit, make the unidirectional folding of curtain; 26. rope-slide block brace: drag rope and head end slide block are fixed.To use the identical executing agency of two covers for the double-layer window curtain machine.

Fig. 4 is according to the complete machine structure schematic diagram that the utility model proposes.11. actuating motor; 12. driving wheel; 13. driven pulley; 14. anti-skidding roller; 15. anti-skidding roller frame; 20. drag rope; 21. guide rail; 22. slide block; 23. guide wheel; 24. curtain link; 27. control box; 28. driven wheel seat; 29. outdoor smooth detection head; 30. circuit box; 31. infra-red remote control transmitter; 32. infrared ray receive window; 33. status indicator lamp; 34. room light detection window; 35. infrared ray launch window; 36. six tunnel control buttons; 37. control circuit board; 38. circuit power transformer; 39. main signal cable; 40. light detecting signal cable; 41. feed cable; 42. installing hole.

In Fig. 3, transmission mechanism is by a roller shoe of being made up of roller frame 15, roller rotating shaft 16, roller frame rotating shaft 17, spring holder 18, spring 19, anti-skidding roller 14, utilize the elastic force of spring 19 that the anti-skidding roller 14 on the anti-skidding roller frame 15 is pressed to driving wheel 12, increase the frictional force between driving wheel 12 and the drag rope 20.Driving wheel 12 adopts elastomeric material to make.

In complete machine structure shown in Figure 4, be connected with main signal cable 39 between circuit box 30 and the control box 27, and circuit box 30 overhangs control box 27 by an indoor side.Outdoor smooth detection head 29 links to each other with control box 27 by light detecting signal cable 40, and side direction installing hole and the attached adhesive sticker of sensitive surface frame are arranged on it, can be installed on the window frame or directly to stick on the glass pane.

Claims (7)

1. remote-controlled full-automatic window curtain driving mechanism is characterized in that being made up of outdoor optical detection circuit 1, room light testing circuit 2, thresholding comparison circuit 3, infra-red remote control radiating circuit 4, infrared remote control receiving circuit 5, logic control circuit 6, drive circuit 7, state detection circuit 8, power circuit 10 and the executing agency that is made of actuating motor 11, transmission mechanism 9; Wherein: the signal output part of outdoor optical detection circuit 1, room light testing circuit 2 respectively with thresholding comparison circuit 3 in the main curtain input of closing threshold compataror, main curtain opening threshold compataror and secondary curtain threshold compataror join; The control end of the output of thresholding comparison circuit 3 and logic control circuit 6 joins; The input of the signal output part of logic control circuit 6 and drive circuit 7 joins; The switching device of drive circuit 7 (light controllable silicon) is serially connected in the electric power loop of actuating motor 11; In addition, the control end of logic control circuit 6 also joins with infrared remote control receiving circuit 5 and the output that is serially connected in the state detection circuit 8 in actuating motor 11 electric power loops respectively.

2. remote-controlled full-automatic window curtain driving mechanism according to claim 1 is characterized in that:

A. form outdoor optical detection circuit 1 by amplifier IC11, photodiode PH11, diode D11, resistance R 11, R12, R13, R214, potentiometer W11, capacitor C 11 and C12.PH11 and D11 are connected to the IC11 positive input terminal, and R12, R13 are connected to the IC11 negative input end, and W11 is connected to negative input end and the output of IC11;

B. form room light testing circuit 2 by comparator IC21:C, phototriode PH21, diode D22, resistance R 24, R25, R26, R210, R212, R216, R217, potentiometer W23 and capacitor C 22.R24～R26, W23 are the laod network of PH21, and it exports the positive input terminal that is connected to IC21:C through R216, and R217, D22 are connected to positive input terminal and the output of IC21:C through R216.The negative input end of IC21:C connects the output of IC11 through R215, and its output is connected to the R end of IC22 through R210;

C. form thresholding comparison circuit 3 by comparator IC21:A, IC21:B, IC21:D, R-S trigger IC22, inverter ic 23:A, IC23:B, IC23:C, IC23:D, IC23:E, IC23:F, diode D21, ID31, D32, D33, D34, resistance R 21, R22, R23, R27, R28, R29, R31, R32, R33, R34, R211, R213, R215, capacitor C 21, C23, C24, C31, C32, C33, C34, potentiometer W21, W22 and W24.The positive input terminal of IC21:A, IC21:B and the negative input end of IC21:D connect the output of IC11 through R215.R21, W21, R22, W22, R23 and R27, W24, R28 are serially connected in the positive and negative end of power supply respectively, and the negative input end of IC21:A, IC21:B and the positive input terminal of IC21:D are connected on the sliding end of W21, W22, W24 respectively.The THR end of the output termination IC22 of IC21:A, the TRIG end of the output termination IC22 of IC21:B, input, the output of the output of IC22 and IC23:A, IC23:B are connected in series.D21 connects the IC21:D output and links to each other with the IC21:D positive input terminal by W24.Input, the output of IC21:D output and IC23:C, IC23:D, IC23:E, IC23:F are connected in series.The output of IC23:A, IC23:B, IC23:E, IC23:F respectively through C31～34, four differential circuits forming of D31～D34, R31～R34 are connected to IC31:A, IC31:B, IC32:A, IC32:B input;

D. form infra-red remote control radiating circuit 4 by coding, modulator IC71, triode T71, LED 71, diode D71, D72, resistance R 71, R72, R73, capacitor C 71, C72, C73, C74, button K71, K72, K73, K74, K75, K76 and battery DC71.K71～K76 is connected to A～F end of IC71.The OUT end of IC71 amplifies driving LED 71 through T71;

E. by reception, demodulator IC41, decoder IC42, inverter ic 43:A, IC43:B, IC43:C, IC43:D, or door IC44:A, IC44:B, IC44:C, IC44:D, photodiode PH41, triode T41, T42, LED 41, LED42, diode D41, D42, D43, D44, D45, D46, D47, D48, resistance R 41, R42, R43, R44, R45, R46, R47, R48, R49, R410, R411, R412, R413, R414, R415, capacitor C 41, C42, C43, C44, C45, C46, C47, C48, C49, C410, C411, C412 and C413 form infrared remote control receiving circuit 5.PH41 connects the PH end of IC41.The IN end of the OUT termination IC42 of IC41.The A output termination IC31:A of IC42, IC31:B input, B output termination IC32:A, IC32:B input, and respectively through T41, T42 driving LED 41, LED42.Four output C～F in addition of IC42 link to each other with the CLK end of IC33:A:IC33:B, IC34:A, IC34:B with the shaping circuit that IC44:A, IC44:B, IC44:C, IC44:D form through the two-way differential circuit that IC43:A～IC43:D, C46～C49, C410～C413, D41～D48, R48, R49R410～R415 form respectively;

F. form logic control circuit 6 by NAND gate IC31:A, IC31:B, IC31:C, IC32:A, IC3:B, IC32:C, d type flip flop IC33:A, IC33:B, IC34:A, IC34:B, inverter ic 43:E and IC43:F.The reversed-phase output of IC33:A, IC33:B, IC34:A, IC34:B is connected to T51～T54 respectively.Positive output end is held through the D that IC31:C, IC32:C connect separately.The D end of IC33:A, IC33:B and IC34:A, IC34:B links to each other with IC32:A, IC32:B input with IC31:A, IC31:B with IC43:F through IC43:E respectively, and the output of IC31:A, IC31:B, IC32:A, IC32:B links to each other with the CD end of IC33:A, IC33:B, IC34:A, IC34:B respectively;

G. form drive circuit 7 by triode T51, T52, T53, T54, light thyrister form photo-coupler OPT51, OPT52, OPT53, OPT54, resistance R 51, R52, R53, R54, R55, R56, R57, R58, capacitor C 53 and C54.The input of OPT51～OPT54 inserts T51～T54 output loop respectively.OPT51, OPT52 and OPT53, OPT54 output insert motor M 51 and M52 electric power loop respectively;

H. form state detection circuit 8 by comparator IC51:A, IC51:B, photo-coupler OPT55, OPT56, diode D51, D52, resistance R 35, R36, R59, R510, R511, R512, R517, R518, potentiometer W51, W52, capacitor C 35, C36, C51, C52, C55 and C56.Wherein OPT55 and OPT56 input insert the electric power loop of motor M 51 and M52 respectively, output is connected to IC51:A and IC51:B negative input end, and IC51:A and IC51:B output are connected to the SD end of d type flip flop IC33:A, IC33:B and IC34:A, IC34:B respectively.

3. remote-controlled according to claim 1 full-automatic window curtain driving mechanism, the described outdoor optical detection circuit of its feature is a logarithm amplifying circuit.

4. remote-controlled according to claim 1 full-automatic window curtain driving mechanism, the described thresholding comparison circuit of its feature adopts the double threshold comparison circuit.

5. remote-controlled according to claim 1 full-automatic window curtain driving mechanism, the described logic control circuit of its feature adopts double D trigger to make the opening and closing trigger respectively.

6. remote-controlled according to claim 1 full-automatic window curtain driving mechanism, the described state detection circuit of its feature adopts photoelectrical coupler OPT55, OPT56, and its input inserts electric motor loop, output termination comparator.

7. remote-controlled according to claim 1 full-automatic window curtain driving mechanism, there is a roller shoe in the described executing agency of its feature.

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