CN2826025Y

CN2826025Y - Ventilator with temperature controller

Info

Publication number: CN2826025Y
Application number: CNU2005200448724U
Authority: CN
Inventors: 朱根弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-08
Filing date: 2005-09-08
Publication date: 2006-10-11
Anticipated expiration: 2015-09-08

Abstract

The utility model discloses a ventilator with a temperature controller, which has the advantages of simple circuit, low cost and complete functions, can set the controlling value according to the different seasons and needs and can be controlled automatically according to the temperature difference indoor and outdoor. The utility model is mainly composed of a temperature detecting circuit, a duty ratio circuit, a positive and reverse circuit, a controlling circuit of a wind turning plate, a delaying, recognition and protection circuit and an accessory circuit. The utility model is suitable for the automatic control of the ventilation equipment of the high-rise buildings and the automatic control of the ventilation of the domestic living rooms.

Description

The temperature control ventilation fan

Technical field

The utility model relates to a kind of room ventilation ventilation fan, especially a kind of can be according to indoor, the outdoor temperature difference, automatically control and can be according to the dutycycle temperature control ventilation fan of control automatically.

Background technique

At present, known indoor air-changing fan is made up of control power switch, motor, flabellum and shell.When indoor need the ventilation, need manually-operable control power switch, its mode of operation is single, can not control automatically according to real-time needs.When indoor air-changing is finished, need manual-lock, when the people goes out to have forgotten to close, not only waste electric energy, also there is potential safety hazard.

Summary of the invention

The purpose of this utility model is to overcome in the prior art to need manually-operable ventilation fan, deficiency that mode of operation is single, provide that a kind of circuit is simple, with low cost, Perfect in shape and function, can set controlling value according to Various Seasonal, different needs, and automatically in the sensing chamber, outdoor temperature difference temperature control ventilation fan that control automatically, that can control automatically according to dutycycle.

The purpose of this utility model is achieved by following technical proposals.

Newly establish a control circuit board in the shell of prior art, this circuit board contains: room temperature inductor 1, outdoor temperature inductor 2, voltage comparator 3, temperature sensing circuit power switch 4, temperature sensing circuit tutorial light 5, OR circuit 6, EDM Generator of Adjustable Duty Ratio circuit 7, pierce circuit 8, clockwise and anticlockwise control 9, gate turnoff thyristor circuit 10, identification delay protection circuit 11, gate turnoff thyristor circuit 12, the turnover panel that keeps out the wind control 13, to the power circuit 14 and the power switch 15 of complete machine power supply.

Described room temperature inductor 1, outdoor temperature inductor 2, voltage comparator 3 constitute temperature sensing circuit.Room temperature inductor 1, outdoor temperature inductor 2 respectively in the sensing chamber, outdoor temperature and connect voltage comparator 3 respectively, the output of the output of described temperature sensing circuit and EDM Generator of Adjustable Duty Ratio circuit 7 is connected OR circuit 6 respectively, and OR circuit 6 outputs divide three the tunnel; One tunnel connection oscillator 8, the output of oscillator 8 also divides two the tunnel; One the tunnel connects clockwise and anticlockwise control 9, and described clockwise and anticlockwise control 9 connects the prior art motor and controls the prior art motor positive and inverse.The second tunnel of described OR circuit 6 outputs connect and control gate

turnoff thyristor circuit

10,10 outputs of gate turnoff thyristor circuit connect the turnover panel control circuit 13 that keeps out the wind, the described turnover panel control circuit 13 that keeps out the wind is electromagnet, control prior art the opening, closing of turnover panel of keeping out the wind.Described OR circuit 6 output Third Roads connect identification delay protection electricity 11; another road of the output of described oscillator 8 also connects identification delay protection electricity 11; the output of described identification delay protection circuit 11 connects gate turnoff thyristor 12; gate turnoff thyristor 12 is connected with the prior art motor, and the alternating current 220V of described power circuit 14 connects gate turnoff thyristor circuit 10 and gate turnoff thyristor circuit 12.It removes the export-oriented complete machine power supply of temperature sensing circuit the DC of described power circuit 14, described DC connects temperature sensing circuit power switch 4, described temperature sensing circuit power switch 4 also connects indicator light circuit 5, the break-make of described power switch 15 control entire product power supplys.

Adopt technique scheme, the utility model is compared with prior art, and beneficial effect is tangible.

The temperature detection pattern: use air-conditioning summer: room temperature is lower than outdoor temperature, temperature difference circuit of the present utility model is not worked, time has been grown, the indoor air muddiness, time base circuit of the present utility model is worked by the dutycycle mode, as: worked 5 minutes, and stopped 55 minutes, hocket (specifically adjustable) holding chamber inner air flow, fresh.Close room temperature is higher than when outdoor when air-conditioning reaches set time, temperature difference circuit working of the present utility model carries out air inlet, exhaust incessantly, makes indoor air fresh, refrigerant.Especially more apparent it is important to the setting of evening sleep for this function.

Duty cycle mode: can not use temperature difference circuit of the present utility model when season of air-conditioning or winter using air-conditioning to heat, time base circuit of the present utility model is worked by the dutycycle mode, promptly work a period of time, stop a period of time (specifically adjustable), hocket, take a breath during work, make inner air flow, fresh.Because duty cycle mode is a kind of intermittent duty, therefore energy-conservation, reduce potential safety hazard, improve the working life of product.

When the utility model work, the turnover panel that keeps out the wind is opened automatically, is not worked to close when the utility model and close automatically.

The figure explanation of bowing

Fig. 1 is the utility model temperature control ventilation fan schematic block circuit diagram

Fig. 2 is that the Fig. 1 that bows discerns the delay protection circuit theory diagrams

Embodiment

The utility model is described in further detail below in conjunction with the Fig. 1 that bows.

Among Fig. 1: room temperature inductor 1, outdoor temperature inductor 2, be connected and place respectively indoor, the outdoor end of prior art shell by lead, joint and control circuit board, described temperature inductor is that a kind of thermistor constitutes.Described room temperature inductor 1, outdoor temperature inductor 2 be series resistors respectively, constitute bleeder circuit and and voltage comparator 3+hold to be connected with an end, described voltage comparator 3 is integrated operational amplifiers 741, voltage comparator 3 outputs=1 when room temperature is higher than outdoor temperature; When room temperature was lower than outdoor temperature, voltage comparator 3 outputs=0 when output=1, started OR circuit 6 work, and when output=0, OR circuit 6 is not worked.

Described EDM Generator of Adjustable Duty Ratio circuit 7 is by time base circuit 555 and charge circuit resistance, charging and discharging circuit potentiometer, discharge and recharge diode, charge and discharge capacitance constitutes, it is 60 minutes that adjusting capacitance-resistance parameter makes the period of vibration of EDM Generator of Adjustable Duty Ratio circuit 7, regulator potentiometer makes EDM Generator of Adjustable Duty Ratio, when output=1, start OR circuit 6 work, when output=0, OR circuit 6 is not worked.

When OR circuit 6 outputs=1, work:

Its output divides three the tunnel; One tunnel the 4th pin preset end that connects the pierce circuit 8 that is made of time base circuit 555 and resistance, potentiometer, electric capacity makes its work, and be 2 minutes its period of vibration, high-low level each 1 minute, and the output of described pierce circuit 8 also divides two the tunnel; One the tunnel connects clockwise and anticlockwise control 9, when the output of pierce circuit 8=1, the just commentaries on classics coupled condition of control clockwise and anticlockwise control 9, when the output of pierce circuit 8=0, the counter-rotating coupled condition of control clockwise and anticlockwise control 9, described clockwise and anticlockwise control 9 connect the prior art motor and control its clockwise and anticlockwise.The second tunnel of described OR circuit 6 outputs connect the control end of gate

turnoff thyristor circuit

10,10 conductings of gate turnoff thyristor circuit, because gate turnoff thyristor circuit 10 is connected with the turnover panel control 13 of keeping out the wind, the alternating current 220V of power circuit 14 is by the electromagnet power supply of gate turnoff thyristor circuit 10 to the turnover panel control 13 of keeping out the wind, the adhesive of electromagnet with discharge the control prior art ventilating fan turnover panel that keeps out the wind and open and close.The Third Road output of described OR circuit 6 is connected with the protective circuit input end Ui2 of identification delay protection circuit 11, and another road of the output of above-mentioned pierce circuit 8 connects the input end Ui1 of the recognition circuit of identification delay protection circuit 11.

The recognition circuit of described identification delay protection circuit 11 can be discerned the rising edge and the trailing edge of the output clockwise and anticlockwise square signal of pierce circuit 8 automatically; in other words: when input signal Ui1 jumps 0 by 1; or by 0 jumping 1 o'clock, Uo1 can both export a pulse by 1 jumping 0, and circuit is seen Fig. 2.Principle analysis: among Fig. 2,1 inverting function of reverser, D1, D2 are isolating diodes, rise simultaneously to eliminate the level be added in D1, D2 forward end and jumped 0 o'clock by 1, sharp pulse under the differential that C1, C2 produce, C1, C2 play the differential coupling, and R1, R2 are charging resistor.As input end Ui1=1, reverser 1 output=0, D1 anti-partially by, D2 conducting, C2 two terminal voltages can not suddenly change, C2 output terminal=1, OR-NOT circuit Uo1 output terminal=0, the C2 output end voltage is to the R2 charging and descend subsequently.As input end Ui1=0, reverser 1 output=1, D1 conducting, D2 instead end partially, C1 two terminal voltages can not be suddenlyd change, C1 output terminal=1, OR-NOT circuit Uo1 output=0, and the C1 output end voltage descends to the R1 charging subsequently.Conclusion: do not have the input end Ui1 of appointing by 1 jumping 0 or by 0 jumping 1, OR-NOT circuit Uo1 is by 1 jumping 0.

The delay circuit of described identification delay protection circuit 11 is the monostable circuits that are made of 555 time base circuits and capacitance resistance component, and when it was subjected to the recognition circuit triggering, exporting a temporarily steady time was the high level in 5 seconds, turns back to stable state subsequently.

The protective circuit of described identification delay protection circuit 11 is to be made of reverser 2 and AND circuit.When identifying input signal Ui1, recognition circuit jumps 0 by 1; or by 0 jumping 1 o'clock (clockwise and anticlockwise switching); temporarily steady time of monostable circuit output is the high level in 5 seconds; be output as low level through reverser 2; the AND circuit of protective circuit output Uo2 be 5 second low level; control gate turnoff thyristor 12 turn-offs; the motor dead electricity is in order; when monostable circuit is got back to stable state; be output as high level through reverser 2; Uo2 gets back to high level with door output, 12 conductings of control gate turnoff thyristor, and motor is to original reverse startup.Gate turnoff thyristor 12 is connected with the prior art motor.The alternating current 220V of described power circuit 14 powers up for the prior art motor by gate turnoff thyristor 12.

When OR circuit 6 outputs=0, standby:

Its output divides three the tunnel; The 4th pin preset end of one tunnel connection oscillator circuit 8 resets it.The second the tunnel connects the control end of gate turnoff thyristor circuit 10, and gate turnoff thyristor circuit 10 turn-offs, and the prior art ventilating fan turnover panel that keeps out the wind is closed.The output Third Road of described OR circuit 6 is connected with the AND circuit of the protective circuit of identification delay protection circuit 11, and AND circuit output Uo2 is a low level, gate turnoff thyristor 12, prior art motor dead electricity.

The DC of described power circuit 14 is the alternating current 220V of power circuit 14 VDC through step-down, rectification, it is except the export-oriented complete machine power supply of temperature sensing circuit, described DC connects temperature sensing circuit power switch 4, and pass through temperature detection power switch 4 and power to temperature sensing circuit, it is bright when temperature sensing circuit is worked that described temperature detection power switch 4 also connects indicator light circuit 5, otherwise do not work.The break-make of described power switch 15 control entire product power supplys.Described temperature sensing circuit power switch 4 and power switch 15 are interlock pullswitches of prior art.

Claims

1, a kind of temperature control ventilation fan, it comprises: control power switch, motor, flabellum and shell, it is characterized in that: further comprising a temperature sensing circuit, it can distinguish in the sensing chamber, outdoor temperature; An EDM Generator of Adjustable Duty Ratio circuit (7), it can export period of vibration is 60 minutes, the square signal of EDM Generator of Adjustable Duty Ratio; The OR circuit of work of a control complete machine or standby (6); The control circuit of a control prior art motor positive and inverse of forming by pierce circuit (8) and positive and negative rotation circuit (9), its output of described pierce circuit (8) is 2 minutes period of vibration, each square signal of 1 minute of high-low level, described positive and negative rotation circuit (9) is subjected to the control of pierce circuit (8) to switch the Placement of positive and negative rotation circuit (9), realizes the clockwise and anticlockwise of prior art motor; Turnover panel circuit of being made up of gate turnoff thyristor circuit (10) and the turnover panel that keeps out the wind control (13) that keeps out the wind is controlled prior art the opening, closing of turnover panel of keeping out the wind; The protective circuit of a protection prior art motor of forming by identification delay protection circuit (11) and gate turnoff thyristor (12), the recognition circuit of described identification delay protection circuit (11) can be discerned the clockwise and anticlockwise high-low level square signal from pierce circuit (8) automatically, the delay circuit of described identification delay protection circuit (11) is that the monostable circuit that 555 time base circuits constitute also can be delayed time for 5 seconds, the protective circuit of described identification delay protection circuit (11) is made up of reverser 2 and AND circuit, and it can be according to the break-make of the State Control gate turnoff thyristor (12) of OR circuit (6) and pierce circuit (8); Power circuit (14) to the complete machine power supply;

The output of the output of described temperature sensing circuit and EDM Generator of Adjustable Duty Ratio circuit (7) is connected OR circuit (6) respectively; The 4th pin preset end of described OR circuit 6 output connection oscillator (8), the output of described oscillator (8) connects positive and negative rotation circuit (9), and described positive and negative rotation circuit (9) connects the prior art motor and controls the prior art motor positive and inverse; The output of described OR circuit (6) also connects the control end of gate turnoff thyristor circuit (10), 10 outputs of gate turnoff thyristor circuit connect the turnover panel control (13) of keeping out the wind, described keep out the wind turnover panel control (13) and the prior art shell turnover panel that keeps out the wind links to each other the alternating current 220V connection gate turnoff thyristor circuit 10 of described power circuit (14); Another road of the output of described OR circuit (6) connects the protective circuit input end Ui2 of identification delay protection circuit (11); another road of output of described oscillator (8) also connects the recognition circuit input end Ui1 of identification delay protection circuit (11); the output Uo2 of described identification delay protection electricity (11) connects the control end of gate turnoff thyristor (12); gate turnoff thyristor 12 is connected with the prior art motor, and the alternating current 220V of described power circuit (14) is connected with gate turnoff thyristor circuit (12).

2, temperature control ventilation fan according to claim 1, it is characterized in that: described temperature sensing circuit is indoor, the outdoor end that is connected and places respectively the prior art shell by room temperature inductor (1), outdoor temperature inductor (2), by lead, joint and control circuit board, they are series resistors respectively, constitute bleeder circuit and respectively with voltage comparator (3)+end and-hold to be connected, described voltage comparator (3) is an integrated operational amplifier 741.

3, temperature control ventilation fan according to claim 1 is characterized in that: described EDM Generator of Adjustable Duty Ratio circuit 7 is by time base circuit 555 and charge circuit resistance, charging and discharging circuit potentiometer, discharge and recharge diode, charge and discharge capacitance constitutes.

4, temperature control ventilation fan according to claim 1 is characterized in that: described positive and negative rotation circuit (9) is a relay.

5, temperature control ventilation fan according to claim 1 is characterized in that: the described turnover panel control (13) of keeping out the wind is electromagnet.

6, temperature control ventilation fan according to claim 1 is characterized in that: the recognition circuit of described identification delay protection circuit (11) is by reverser 1, D1, D2, C1, C2, and R1, R2 and OR-NOT circuit are formed; Input end Ui1 is connected with reverser 1 input end and D2 anode, reverser 1 output terminal connects the D1 anode, one end of D1 negative terminal and capacitor C 1 is connected, one end of the other end of capacitor C 1 and resistance R 1 is connected and is connected with an input end of NOR gate, the end of the negative terminal of D2 and C2 is connected, one end of the other end of C2 and resistance R 2 is connected and is connected with another input end of NOR gate, and the other end of R1 is connected and ground connection with the other end of R2, and the output Uo1 of NOR gate is the output terminal of recognition circuit.