CN105864987A - Power source voltage-stabilized type automatically-controlled air exchange system - Google Patents
Power source voltage-stabilized type automatically-controlled air exchange system Download PDFInfo
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- CN105864987A CN105864987A CN201610357107.0A CN201610357107A CN105864987A CN 105864987 A CN105864987 A CN 105864987A CN 201610357107 A CN201610357107 A CN 201610357107A CN 105864987 A CN105864987 A CN 105864987A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Power Engineering (AREA)
- Quality & Reliability (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a power source voltage-stabilized type automatically-controlled air exchange system. The air exchange system is characterized in that the system is mainly composed of a programmable controller, a voltage-stabilizing rectifier circuit, an A/D converter, a memory, an air exchange control circuit, a power source, an air quality sensor and an air exchange device, wherein the voltage-stabilizing rectifier circuit, the A/D converter, the memory and the air exchange control circuit are all connected with the programmable controller, the power source is connected with the voltage-stabilizing rectifier circuit, the air quality sensor is connected with the A/D converter, and the air exchange device is connected with the air exchange control circuit. The air exchange system is simple in structure and low in cost; the programmable controller judges whether the air exchange device needs to be started or not according to indoor air quality signals collected by the air quality sensor, and therefore the air exchange device can be stopped working when the indoor air quality is good; the purpose that air is automatically exchanged according to the odor generation condition in the environment is achieved, and the air exchange system is suitable for application and popularization.
Description
Technical field
The present invention relates to a kind of air exchange system, specifically refer to a kind of power supply type voltage regulation automatic controlling ventilating system.
Background technology
At present, owing to urban population increases severely and the development need in city, City Building becomes increasingly huger
Greatly, these mega structure things will be divided into the most independent multiple small space, and these are individually independent
Small space the most all there is certain closure, thus it cannot be guaranteed that and keep smooth and easy between ambient atmosphere
Circulation, therefore in these spaces produce abnormal flavour be then not easy to automatically disperse.Generally use air conditioner at present
Or the air regenerating device such as exhaust fan takes a breath, thus abnormal flavour is spilt in air, and external world's fresh air is led
Enter.But, the occupation mode of most air regenerating device is the most all that people one enter indoor and are switched on, or
Person waits until that people have snuffed abnormal flavour by olfactory sensation and have been then turned on, and thinks elimination of off flavor or until people the most intuitively
Turn off when leaving.Gas with foreign flavor is often unfavorable for that people's is healthy, waits until that snuffing abnormal flavour is carried out again
Ventilation explanation human body has been drawn into gas with foreign flavor, and always on air regenerating device also will result in waste greatly,
On the one hand air regenerating device needs power consumption, and equipment also will be caused use mill by the most always on air regenerating device
Loss.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, it is provided that one is not only simple in structure, and with low cost,
The situation of abnormal flavour can also be produced according to environment and automatically carry out the power supply type voltage regulation automatic controlling ventilating system taken a breath.
The present invention is achieved through the following technical solutions:
A kind of power supply type voltage regulation automatic controlling ventilating system, mainly by Programmable Logic Controller, equal and programmable control
Voltage stabilizing rectification circuit, A/D converter, memorizer and the ventilation control circuit that device processed is connected, whole with voltage stabilizing
The power supply that current circuit is connected, the air mass sensor being connected with A/D converter, and control with ventilation
The air interchanger composition that circuit processed is connected；Described ventilation control circuit includes integrated chip U1, input
Be connected with Programmable Logic Controller, triggering circuit that outfan is connected with integrated chip U1, and input
The control circuit that end is connected with integrated chip U1, outfan is connected with air interchanger.
Further, described voltage stabilizing rectification circuit is by three terminal regulator U2, operational amplifier P, audion
VT6, audion VT7, positive pole positive input terminal with operational amplifier P after resistance R18 is connected, negative
Electric capacity C8, the N pole of pole ground connection negative input end with operational amplifier P after resistance R17 is connected, P
Input that pole collectively constitutes voltage stabilizing rectification circuit with the positive pole of electric capacity C8 the voltage stabilizing two being connected with power supply
Pole pipe D8, the resistance R16 being serially connected between the N pole of Zener diode D8 and the positive pole of electric capacity C8, string
The resistance R19 being connected between the positive pole of electric capacity C8 and the colelctor electrode of audion VT6, positive pole is through resistance R20
Be connected with the N pole of Zener diode D8 afterwards, electricity that negative pole is connected with the outfan of operational amplifier P
Hold C9, N pole be connected with the outfan of operational amplifier P, the VIN of P pole and three terminal regulator U2
Zener diode D9, the P pole that pin is connected positive pole with electric capacity C9 after resistance R21 is connected, N
The Zener diode D10 that pole is connected with the emitter stage of audion VT7, is serially connected in sending out of audion VT6
Resistance R22 between the ADJ pin of emitter-base bandgap grading and three terminal regulator U2, is serially connected in three terminal regulator U2's
Resistance R24 between the base stage of VOUT pin and audion VT7, positive pole is with three terminal regulator U2's
ADJ pin is connected, negative pole is connected with the VOUT pin of three terminal regulator U2 after resistance R23
Electric capacity C10, and N pole is connected with the positive pole of electric capacity C10, P pole is total to the base stage of triode VT7
With the outfan forming voltage stabilizing rectification circuit the Zener diode D11 group being connected with Programmable Logic Controller
Become；The outfan of described operational amplifier P is connected with the base stage of audion VT6, described three-terminal voltage-stabilizing
The VOUT pin of device U2 is connected with the colelctor electrode of audion VT7.
Further, described triggering circuit is by audion VT1, and audion VT2, P pole is through resistance R1
The diode that colelctor electrode with audion VT1 is connected afterwards, N pole is connected with the base stage of audion VT1
D1, positive pole colelctor electrode with audion VT1 after resistance R2 is connected, the electric capacity C1 of minus earth,
Positive pole is connected with the emitter stage of audion VT1, negative pole positive pole with electric capacity C1 after resistance R3 is connected
The electric capacity C2 connect, positive pole base stage with audion VT1 after relay K is connected, negative pole and audion
Electric capacity C3, the P pole that the emitter stage of VT2 is connected is connected with the emitter stage of audion VT1, N pole with
The diode D2 that the emitter stage of audion VT2 is connected, positive pole after resistance R4 with the negative pole of electric capacity C2
Be connected, electric capacity C4, the N pole of minus earth is connected with the colelctor electrode of audion VT2, P pole and three
The diode D3 that is connected of base stage of level pipe VT2, one end positive pole with electric capacity C3 after resistance R5 is connected
Connect, resistance R7 that the other end is connected with the base stage of audion VT2, one end and resistance R5 and resistance R7
The resistance R6 that junction point is connected, the other end is connected with the SCLK pin of integrated chip U1, and
The resistance R8 composition being serially connected between the base stage of audion VT2 and the RESET pin of integrated chip U1；
The CS pin of described integrated chip U1 is connected with SCLK pin, its GND pin ground connection；Described electricity
The positive pole holding C4 is connected with the colelctor electrode of audion VT2, and the P pole of described diode D1 is as triggering
The input of circuit.
Further, described control circuit is by audion VT3, audion VT4, audion VT5, P
Pole VDD pin with integrated chip U1 after resistance R9 is connected, N pole is sent out with audion VT4's
The diode D4 that emitter-base bandgap grading is connected, one end is connected with the DIN pin of integrated chip U1, the other end with
The resistance R10 that the base stage of audion VT4 is connected, positive pole is connected with the base stage of audion VT4, bears
The electric capacity C5 that pole is connected with the emitter stage of triode VT3, positive pole after resistance R12 with audion VT4
Colelctor electrode be connected, the electric capacity C6 of minus earth, one end is connected with the emitter stage of audion VT4,
The resistance R11 that the other end is connected with the colelctor electrode of audion VT5, positive pole after resistance R13 with three poles
The colelctor electrode of pipe VT5 is connected, the electric capacity C7 of minus earth, is serially connected in positive pole and the electric capacity of electric capacity C6
Resistance R14, P pole between the positive pole of C7 is connected with the colelctor electrode of audion VT4, N pole and three poles
Diode D6, the N pole that the emitter stage of pipe VT5 is connected is connected with the colelctor electrode of audion VT5, P
The diode D5 that pole is connected with the base stage of audion VT5, and the emitter stage of P pole and audion VT5
Be connected, diode D7 composition that N pole base stage with audion VT5 after resistance R15 is connected；Institute
The colelctor electrode stating audion VT3 is connected with DRDY pin and the DOUT pin of control chip U respectively,
Its base stage is connected with the positive pole of electric capacity C6, the base stage of described audion VT4 and the P pole of diode D4
Being connected, the positive pole of described electric capacity C7 is connected with the N pole of diode D7, described audion VT5's
Base stage is connected with air interchanger after the normally opened contact K-1 of relay K.
In order to the present invention is better achieved, described air interchanger is air-cooler or exhaust fan.
In order to ensure effect, described control chip U is the integrated chip of AD7705.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention is not only simple in structure, and with low cost, and Programmable Logic Controller can be according to air matter
The IAQ (indoor air quality) signal of quantity sensor collection judges whether to need to open air interchanger, thus can be in indoor
Stopping air interchanger work when air quality is preferable, the situation that can realize producing abnormal flavour according to environment is entered automatically
The purpose of row ventilation, makes the present invention the most intelligent, and it is the most convenient to use.
(2) the voltage stabilizing rectification circuit of the present invention can carry out voltage stabilizing rectification process to power supply, in order to for compiling
Range controller provides more stable voltage x current.
(3) the triggering circuit of the present invention can be used for triggering the integrated chip U1 of startup, when Programmable Logic Controller root
Then to triggering electricity when judging to need to start air interchanger according to the air mass signal of air mass sensor collection
Road sends startup control signal, and relay K obtains electric and turns on triggering circuit, can start integrated chip U1,
Thus can be convenient for automatically controlling.
(4) control circuit of the present invention can be used for controlling air interchanger work, when relay K obtains electric, institute
Stating the normally opened contact K-1 conducting of relay K, described integrated chip U1 starts backward control circuit and sends control
Signal processed, control circuit then controls air interchanger and starts and take a breath.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the ventilation control circuit of the present invention.
Fig. 3 is the electrical block diagram of the voltage stabilizing rectification circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment
As shown in Figures 1 to 3, the automatic controlling ventilating system of the present invention, mainly by Programmable Logic Controller, all
Voltage stabilizing rectification circuit, A/D converter, memorizer and the ventilation control circuit being connected with Programmable Logic Controller,
The power supply being connected with voltage stabilizing rectification circuit, the air mass sensor being connected with A/D converter, and
The air interchanger composition being connected with ventilation control circuit.Described air mass sensor uses
The air mass sensor of TGS2600 model, this air mass sensor is for gathering the air quality of indoor
Signal, and the air mass signal transmission of collection is carried out signal conversion, A/D converter to A/D converter
Again the control quality signal after conversion is sent to Programmable Logic Controller.Programmable Logic Controller presets sky
Related data is also stored son in memory by the related data of makings amount, and Programmable Logic Controller is by air quality
The air mass signal of sensor acquisition contrasts with related data set in advance.When comparing result is room
When interior air quality is poor, Controlled by Programmable Controller sends startup control signal, then to ventilation control circuit
Start air interchanger and take a breath；When comparing result be IAQ (indoor air quality) preferable time Programmable Logic Controller control
Make and send stopping control signal to ventilation control circuit, then stop air interchanger and take a breath.
Described air interchanger can be air-cooler, it is also possible to be exhaust fan, can select according to using needs.
Described ventilation control circuit includes integrated chip U1, and input is connected with Programmable Logic Controller, outfan
The triggering circuit being connected with integrated chip U1, and input is connected with integrated chip U1, exports
The control circuit that end is connected with air interchanger.Integrated chip U1 in the present embodiment uses AD7705
Integrated chip.
As in figure 2 it is shown, concrete, described triggering circuit is by audion VT1, audion VT2, resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electricity
Hold C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2 and diode D3
Composition.
During connection, the P pole of described diode D1 colelctor electrode with audion VT1 after resistance R1 is connected
Connecing, its N pole is connected with the base stage of audion VT1.The positive pole of described electric capacity C1 after resistance R2 with
The colelctor electrode of audion VT1 is connected, the electric capacity C1 of its minus earth.The positive pole of described electric capacity C2 with
The emitter stage of audion VT1 is connected, and its negative pole positive pole with electric capacity C1 after resistance R3 is connected.
The positive pole of described electric capacity C3 base stage with audion VT1 after relay K is connected, its negative pole and three poles
The emitter stage of pipe VT2 is connected.The P pole of described diode D2 is connected with the emitter stage of audion VT1
Connecing, its N pole is connected with the emitter stage of audion VT2.The positive pole of described electric capacity C4 is after resistance R4
It is connected with the negative pole of electric capacity C2, its minus earth.The N pole of described diode D3 and audion VT2
Colelctor electrode be connected, its P pole is connected with the base stage of triode VT2.One end warp of described resistance R7
After resistance R5, the positive pole with electric capacity C3 is connected, and its other end is connected with the base stage of audion VT2.
One end of described resistance R6 is connected with the junction point of resistance R5 and resistance R7, its other end and integrated core
The SCLK pin of sheet U1 is connected.Described resistance R8 is serially connected in the base stage of audion VT2 and integrated core
Between the RESET pin of sheet U1.Meanwhile, the CS pin of described integrated chip U1 and SCLK pin
It is connected, its GND pin ground connection.The positive pole of described electric capacity C4 is connected with the colelctor electrode of audion VT2
Connecing, the P pole of described diode D1 is as the input triggering circuit.
Described control circuit is by audion VT3, audion VT4, audion VT5, resistance R9, resistance
R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C5, electric capacity
C6, electric capacity C7, diode D4, diode D5, diode D6 and diode D7 form.
During connection, the P pole of described diode D4 after resistance R9 with the VDD pin of integrated chip U1
Being connected, its N pole is connected with the emitter stage of audion VT4.One end of described resistance R10 is with integrated
The DIN pin of chip U1 is connected, and its other end is connected with the base stage of audion VT4.Described electricity
The positive pole holding C5 is connected with the base stage of audion VT4, the emitter stage phase of its negative pole and triode VT3
Connect.The positive pole of described electric capacity C6 colelctor electrode with audion VT4 after resistance R12 is connected, and it is born
Pole ground connection.One end of described resistance R11 is connected with the emitter stage of audion VT4, its other end and three
The colelctor electrode of pole pipe VT5 is connected.The positive pole of described electric capacity C7 after resistance R13 with audion VT5
Colelctor electrode be connected, its minus earth.Described resistance R14 is serially connected in positive pole and the electric capacity C7 of electric capacity C6
Positive pole between.The P pole of described diode D6 is connected with the colelctor electrode of audion VT4, its N pole
It is connected with the emitter stage of audion VT5.The N pole of described diode D5 and the current collection of audion VT5
Pole is connected, and its P pole is connected with the base stage of audion VT5.The P pole of described diode D7 and three poles
The emitter stage of pipe VT5 is connected, and its N pole base stage with audion VT5 after resistance R15 is connected.
Meanwhile, the colelctor electrode of described audion VT3 respectively with DRDY pin and the DOUT of control chip U
Pin is connected, its base stage is connected with the positive pole of electric capacity C6, the base stage of described audion VT4 and two poles
The P pole of pipe D4 is connected, and the positive pole of described electric capacity C7 is connected with the N pole of diode D7, described
The base stage of audion VT5 is connected with air interchanger after the normally opened contact K-1 of relay K.
Described triggering circuit is used for triggering the integrated chip U1 of startup, when Programmable Logic Controller is according to air quality
Then startup is sent to triggering circuit when the air mass signal of sensor acquisition judges to need to start air interchanger
Control signal, relay K obtains electric and turns on triggering circuit, can start integrated chip U1.Described control
Circuit is used for controlling air interchanger work, when relay K obtains electric, the normally opened contact K-1 of described relay K
Conducting, described integrated chip U1 starts backward control circuit and sends control signal, and control circuit then controls to change
Device of air starts and takes a breath.When the air quality that Programmable Logic Controller gathers according to air mass sensor
Then send the control signal stopping air interchanger work, relay to triggering circuit when signal judges to stop ventilation
K dead electricity break trigger circuit, can stop integrated chip U1 work.Meanwhile, described relay K
Normally opened contact K-1 disconnects, and can stop air interchanger work.
As it is shown on figure 3, described voltage stabilizing rectification circuit is by three terminal regulator U2, operational amplifier P, three poles
Pipe VT6, audion VT7, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20,
Resistance R21, resistance R22, resistance R23, resistance R24, electric capacity C8, electric capacity C9, electric capacity C10,
Zener diode D8, Zener diode D9, Zener diode D10 and Zener diode D11 form.
During connection, the positive pole of described electric capacity C8 after resistance R18 with the positive input terminal phase of operational amplifier P
Connect, its minus earth.The N pole of described Zener diode D8 after resistance R17 with operational amplifier P
Negative input end be connected, the positive pole of its P pole and electric capacity C8 collectively constitutes the input of voltage stabilizing rectification circuit
And be connected with power supply.Described resistance R16 with electric capacity C8 is just being serially connected in the N pole of Zener diode D8
Between pole, described resistance R19 is serially connected between the positive pole of electric capacity C8 and the colelctor electrode of audion VT6.Institute
State the positive pole of the electric capacity C9 N pole with Zener diode D8 after resistance R20 to be connected, its negative pole and fortune
The outfan calculating amplifier P is connected.The N pole of described Zener diode D9 is defeated with operational amplifier P's
Going out end to be connected, its P pole is connected with the VIN pin of three terminal regulator U2.Described Zener diode
The P pole of D10 positive pole with electric capacity C9 after resistance R21 is connected, and its N pole is with audion VT7's
Emitter stage is connected.Described resistance R22 is serially connected in emitter stage and the three terminal regulator U2 of audion VT6
ADJ pin between, described resistance R24 is serially connected in VOUT pin and three poles of three terminal regulator U2
Between the base stage of pipe VT7.The positive pole of described electric capacity C10 is connected with the ADJ pin of three terminal regulator U2
Connecing, its negative pole VOUT pin with three terminal regulator U2 after resistance R23 is connected.Described voltage stabilizing two
The N pole of pole pipe D11 is connected with the positive pole of electric capacity C10, and its P pole is common with the base stage of triode VT7
Form the outfan of voltage stabilizing rectification circuit and be connected with Programmable Logic Controller.
Meanwhile, the outfan of described operational amplifier P is connected with the base stage of audion VT6, its positive electricity
Source connects+5V power supply, its negative supply termination-5V power supply.The VOUT pin of described three terminal regulator U2
It is connected with the colelctor electrode of audion VT7.Three terminal regulator U2 in the present embodiment uses LM317
Power supply in three terminal regulator, and the present embodiment is 220V civil power.By the voltage stabilizing rectified current of the present invention
Power supply can be carried out voltage stabilizing rectification process, more stable voltage x current can be provided for Programmable Logic Controller.
As it has been described above, just can preferably realize the present invention.
Claims (6)
1. a power supply type voltage regulation automatic controlling ventilating system, it is characterised in that: main by PLC technology
Device, the voltage stabilizing rectification circuit being all connected with Programmable Logic Controller, A/D converter, memorizer and ventilation control
Circuit processed, the power supply being connected with voltage stabilizing rectification circuit, the air quality being connected with A/D converter senses
Device, and the air interchanger composition being connected with ventilation control circuit；Described ventilation control circuit includes integrated
Chip U1, the triggering that input is connected with Programmable Logic Controller, outfan is connected with integrated chip U1
Circuit, and the control electricity that input is connected with integrated chip U1, outfan is connected with air interchanger
Road.
A kind of power supply type voltage regulation automatic controlling ventilating system the most according to claim 1, its feature exists
In: described voltage stabilizing rectification circuit is by three terminal regulator U2, operational amplifier P, audion VT6, three poles
Pipe VT7, positive pole positive input terminal with operational amplifier P after resistance R18 is connected, minus earth
Electric capacity C8, N pole negative input end with operational amplifier P after resistance R17 is connected, P pole and electric capacity
Input that the positive pole of C8 collectively constitutes voltage stabilizing rectification circuit the Zener diode D8 being connected with power supply,
The resistance R16 being serially connected between the N pole of Zener diode D8 and the positive pole of electric capacity C8, is serially connected in electric capacity
Resistance R19 between positive pole and the colelctor electrode of audion VT6 of C8, positive pole after resistance R20 with voltage stabilizing
The electric capacity C9, N that the N pole of diode D8 is connected, negative pole is connected with the outfan of operational amplifier P
Pole is connected with the outfan of operational amplifier P, P pole is connected with the VIN pin of three terminal regulator U2
Zener diode D9, P pole positive pole with electric capacity C9 after resistance R21 be connected, N pole and audion
The Zener diode D10 that the emitter stage of VT7 is connected, is serially connected in emitter stage and three ends of audion VT6
Resistance R22 between the ADJ pin of manostat U2, is serially connected in the VOUT pin of three terminal regulator U2
And the resistance R24 between the base stage of audion VT7, the ADJ pin phase of positive pole and three terminal regulator U2
The electric capacity C10 that connection, negative pole are connected with the VOUT pin of three terminal regulator U2 after resistance R23,
And N pole is connected with the positive pole of electric capacity C10, P pole collectively constitutes voltage stabilizing with the base stage of triode VT7
The outfan of rectification circuit the Zener diode D11 composition being connected with Programmable Logic Controller；Described computing
The outfan of amplifier P is connected with the base stage of audion VT6, the VOUT of described three terminal regulator U2
Pin is connected with the colelctor electrode of audion VT7.
A kind of power supply type voltage regulation automatic controlling ventilating system the most according to claim 2, its feature exists
In: described triggering circuit by audion VT1, audion VT2, P pole after resistance R1 with audion VT1
The diode D1 that colelctor electrode is connected, N pole is connected with the base stage of audion VT1, positive pole is through resistance
After R2 the colelctor electrode with audion VT1 be connected, the electric capacity C1 of minus earth, positive pole and audion VT1
The electric capacity C2 that emitter stage is connected, negative pole positive pole with electric capacity C1 after resistance R3 is connected, positive pole
After relay K, the base stage with audion VT1 is connected, negative pole is connected with the emitter stage of audion VT2
Electric capacity C3, the P pole connect is connected with the emitter stage of audion VT1, the transmitting of N pole and audion VT2
The diode D2 that pole is connected, positive pole negative pole with electric capacity C2 after resistance R4 is connected, minus earth
Electric capacity C4, N pole be connected with the colelctor electrode of audion VT2, the base stage phase of P pole and triode VT2
The diode D3 connected, one end positive pole with electric capacity C3 after resistance R5 is connected, the other end and three poles
The resistance R7 that the base stage of pipe VT2 is connected, one end is connected with the junction point of resistance R5 and resistance R7,
The resistance R6 that the other end is connected with the SCLK pin of integrated chip U1, and it is serially connected in audion VT2
Base stage and the RESET pin of integrated chip U1 between resistance R8 composition；Described integrated chip U1
CS pin be connected with SCLK pin, its GND pin ground connection；The positive pole and three of described electric capacity C4
The colelctor electrode of pole pipe VT2 is connected, and the P pole of described diode D1 is as the input triggering circuit.
A kind of power supply type voltage regulation automatic controlling ventilating system the most according to claim 3, its feature exists
In: described control circuit is by audion VT3, audion VT4, and audion VT5, P pole is through resistance R9
VDD pin with integrated chip U1 is connected afterwards, N pole is connected with the emitter stage of audion VT4
Diode D4, one end is connected with the DIN pin of integrated chip U1, the other end and audion VT4
The resistance R10 that base stage is connected, positive pole is connected with the base stage of audion VT4, negative pole and triode VT3
The electric capacity C5 that is connected of emitter stage, positive pole colelctor electrode with audion VT4 after resistance R12 is connected,
The electric capacity C6 of minus earth, one end is connected with the emitter stage of audion VT4, the other end and audion VT5
The resistance R11 that is connected of colelctor electrode, positive pole colelctor electrode with audion VT5 after resistance R13 is connected
Connect, the electric capacity C7 of minus earth, be serially connected in the resistance between the positive pole of electric capacity C6 and the positive pole of electric capacity C7
R14, P pole is connected with the colelctor electrode of audion VT4, N pole is connected with the emitter stage of audion VT5
Diode D6, N pole be connected with the colelctor electrode of audion VT5, the base stage of P pole and audion VT5
The diode D5 being connected, and P pole is connected with the emitter stage of audion VT5, N pole is through resistance R15
The diode D7 composition that base stage with audion VT5 is connected afterwards；The colelctor electrode of described audion VT3
Be connected with DRDY pin and the DOUT pin of control chip U respectively, its base stage and electric capacity C6
Positive pole is connected, and the base stage of described audion VT4 is connected with the P pole of diode D4, described electric capacity
The positive pole of C7 is connected with the N pole of diode D7, and the base stage of described audion VT5 is through relay K
It is connected with air interchanger after normally opened contact K-1.
5. according to a kind of power supply type voltage regulation automatic controlling ventilating system described in any one of Claims 1 to 4,
It is characterized in that: described air interchanger is air-cooler or exhaust fan.
A kind of power supply type voltage regulation automatic controlling ventilating system the most according to claim 5, its feature exists
In: described control chip U is the integrated chip of AD7705.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357107.0A CN105864987A (en) | 2016-05-25 | 2016-05-25 | Power source voltage-stabilized type automatically-controlled air exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357107.0A CN105864987A (en) | 2016-05-25 | 2016-05-25 | Power source voltage-stabilized type automatically-controlled air exchange system |
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| Publication Number | Publication Date |
|---|---|
| CN105864987A true CN105864987A (en) | 2016-08-17 |
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|---|---|---|---|
| CN201610357107.0A Pending CN105864987A (en) | 2016-05-25 | 2016-05-25 | Power source voltage-stabilized type automatically-controlled air exchange system |
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| Country | Link |
|---|---|
| CN (1) | CN105864987A (en) |
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2016
- 2016-05-25 CN CN201610357107.0A patent/CN105864987A/en active Pending
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Application publication date: 20160817 |