CN106016959A - Automatic refrigerator deodorization control system based on second-order filter circuit - Google Patents
Automatic refrigerator deodorization control system based on second-order filter circuit Download PDFInfo
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- CN106016959A CN106016959A CN201610528632.4A CN201610528632A CN106016959A CN 106016959 A CN106016959 A CN 106016959A CN 201610528632 A CN201610528632 A CN 201610528632A CN 106016959 A CN106016959 A CN 106016959A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/202—Ozone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
- A61L2209/212—Use of ozone, e.g. generated by UV radiation or electrical discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0415—Treating air flowing to refrigeration compartments by purification by deodorizing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses an automatic refrigerator deodorization control system based on a second-order filter circuit. The system is characterized by being mainly composed of a processing chip U2, a diode rectifier U1, a gas sensor QM, a transformer T, a triode VT1, a polar capacitor C1, a capacitor L1, a voltage-stabilizing diode D2, a polar capacitor C3, a polar capacitor C9, an anti-jamming circuit, the second-order filter circuit in series connection between the positive electrode of the polar capacitor C1 and a pin IN of the processing chip U2 and a polyharmonic vibration trigger circuit in series connection between the anti-jamming circuit and the dotted terminal of an original side inductance coil of the transformer T; and according to the odor concentration, detected by the gas sensor QM, in the refrigerator, a refrigerator is automatically sterilized, disinfected and deodorized, and therefore it is ensured that peculiar smell in the refrigerator can be effectively removed, and the biochemical reaction inside vegetables or fruits is effectively restrained.
Description
Technical field
The present invention relates to electronic applications, specifically, be that a kind of refrigerator based on second-order filter circuit removes automatically
Smelly control system.
Background technology
Traditional electric refrigerator be the porous adsorption utilizing activated carbon to the abnormal flavour adsorbing in refrigerator, but this
Deodorizing method is without bactericidal action, and it is frequently necessary to change activated carbon, and therefore its use is very inconvenient.Along with
The development of science and technology, people begin to use ozone, to substitute activated carbon, electric refrigerator is carried out deodorization.Ozone not only may be used
Refrigerator to be carried out sterilizing and sterilization, and the biochemical reaction of vegetable or fruit internal can also be suppressed, play one
Fixed preservation.
At present, when deodorant for refregerator many employings refrigerator doors is opened, the light-illuminating in case is to the side on photoelectric receiving tube
Formula controls the corona discharge of Deodorising, makes air ionization produce ozone, and this control mode is in refrigerator doors
The abnormal flavour in refrigerator can not be caused not to be eliminated in time carrying out deodorization in refrigerator, thus adds when not opening
Fast biochemical reaction within veterinary antibiotics.
Therefore it provides a kind of deodorant for refregerator that refrigerator automatically can carry out deodorization according to the abnormal flavour in refrigerator controls
System is the task of top priority.
Summary of the invention
It is an object of the invention to overcome deodorant for refregerator pipe of the prior art can not to enter according to the abnormal flavour in refrigerator
The defect of row automatic deodorizing, it is provided that a kind of based on second-order filter circuit refrigerator automatic deodorizing control system.
The present invention is achieved through the following technical solutions: a kind of refrigerator automatic deodorizing based on second-order filter circuit
Control system, mainly by processing chip U2, diode rectifier U1, gas sensor QM, transformator T,
Audion VT1, after positive electrode resistance R1 the colelctor electrode with audion VT1 be connected, negative pole and gas sensing
The polar capacitor C1 that device QM is connected, one end is connected with the positive pole of polar capacitor C1, the other end and three
The inductance L1 that the emitter stage of pole pipe VT1 is connected, is serially connected in positive pole and the process chip U2 of polar capacitor C1
IN pin between second-order filter circuit, N pole with process chip U2 VPOS pin be connected, P
The Zener diode D2 that pole cathode output end with diode rectifier U1 after resistance R4 is connected, positive pole
Be connected with the cathode output end of diode rectifier U1, negative pole exports with the negative pole of diode rectifier U1
End be connected after the polar capacitor C3 of ground connection, positive pole is connected with the Same Name of Ends of transformator T secondary inductance coil,
The polar capacitor C9 that negative pole is connected with the non-same polarity of transformator T secondary inductance coil, respectively with process core
The anti-jamming circuit that the non-same polarity of FDBK pin limit former with the transformator T inductance coil of sheet U2 is connected,
And the multi resonant vibration being serially connected between the Same Name of Ends of anti-jamming circuit and transformator T former limit inductance coil triggers
Circuit forms；The GPOS pin of described process chip U2 and the non-same polarity of transformator T former limit inductance coil
Be connected, its VPOS pin is connected with the cathode output end of diode rectifier U1, its GND pin
Ground connection.
Described second-order filter circuit is by amplifier P1, amplifier P2, audion VT6, positive pole and amplifier
The positive pole of P1 is connected, negative pole as second-order filter circuit input and with the positive pole phase of polar capacitor C1
The polar capacitor C11 connected, positive pole negative pole with polar capacitor C11 after resistance R12 is connected, negative pole
Polar capacitor C10, the P pole of ground connection positive pole with amplifier P1 after resistance R13 is connected, N pole is through electricity
After resistance R16 diode D7, the N pole that is connected with the outfan of amplifier P1 after resistance R15 with three poles
The diode that the base stage of pipe VT6 is connected, P pole negative pole with amplifier P1 after resistance R14 is connected
D8, after one end is connected with the colelctor electrode of audion VT6, the other end is connected with the P pole of diode D8
The inductance L2 of ground connection, positive pole is connected with the outfan of amplifier P1, the transmitting of negative pole and audion VT6
The polar capacitor C12 that pole is connected, negative pole is connected with the positive pole of amplifier P2, positive pole and amplifier P1
The polar capacitor C13 that is connected of outfan, one end is connected with the negative pole of amplifier P2, other end ground connection
Resistance R17, negative pole is connected with the outfan of amplifier P21, positive pole after resistance R18 with amplifier
The polar capacitor C14 that the positive pole of P2 is connected, and one end is connected with the positive pole of amplifier P2, the other end
The adjustable resistance R19 composition being connected with the negative pole of polar capacitor C14；The outfan of described amplifier P2 is made
For the outfan of second-order filter circuit and it is connected with the IN pin processing chip U2.
Described anti-jamming circuit is by audion VT2, audion VT3, and not gate IC1, P pole is after resistance R2
Be connected with the FDBK pin processing chip U2, N pole is connected with the colelctor electrode of audion VT2 two
Pole pipe D1, negative pole emitter stage with audion VT2 after resistance R5 is connected, after positive electrode resistance R6 with
Polar capacitor C5, the P pole that the backward end of not gate IC1 is connected is connected with the base stage of audion VT2, N
Pole be connected with the negative pole of polar capacitor C5 after the diode D3 of ground connection, positive pole after resistance R7 with polarity electricity
Hold C5 positive pole be connected, the polar capacitor C4 of minus earth, positive pole after resistance R3 with audion VT3
The polar capacitor C2 that colelctor electrode is connected, negative pole is connected with the GPOS pin of process chip U2, with
And one end is connected with the emitter stage of audion VT3, the other end is connected with the positive pole of polar capacitor C5
Adjustable resistance R8 forms；The forward end of emitter stage NAND gate IC1 of described audion VT2 is connected；Institute
The positive pole of the colelctor electrode and polar capacitor C4 of stating audion VT3 is connected, its base stage and polar capacitor C5
Positive pole is collectively forming the outfan of anti-jamming circuit and is connected with multi resonant vibration triggering circuit.
Described multi resonant vibration trigger circuit by audion VT4, audion VT5, not gate IC2, not gate IC3,
Not gate IC4, field effect transistor MOS, positive pole colelctor electrode with audion VT5 after resistance R9 is connected,
Polar capacitor C6, the N pole that negative pole is connected with the base stage of audion VT4 and the emitter stage of audion VT5
Be connected, diode D5 that P pole is connected with the emitter stage of audion VT4, one end and audion VT5
The resistance R11 that emitter stage is connected, the forward end of NAND gate IC4 is connected after the other end, negative pole NAND gate
Polar capacitor C7, the N pole warp that the forward end of IC3 is connected, positive pole is connected with the base stage of audion VT5
After resistance R10, the backward end of NAND gate IC2 is connected, P pole is connected with the positive pole of polar capacitor C6 two
Pole pipe D4, the backward end of positive pole NAND gate IC4 is connected, negative pole is connected with the grid of field effect transistor MOS
The polar capacitor C8 connect, and P pole is connected with the source electrode of field effect transistor MOS, N pole and transformator T
The Zener diode D6 composition that the Same Name of Ends of former limit inductance coil is connected；The positive pole of described polar capacitor C6
It is connected with the base stage of audion VT3；The colelctor electrode of described audion VT4 and the positive pole of polar capacitor C5
It is connected；The forward end of the forward end of described not gate IC3 NAND gate IC2 respectively and the forward end of not gate IC4
Be connected, the backward end of its backward end NAND gate IC2 the most respectively is connected with the backward end of not gate IC4；Institute
State the grounded drain of field effect transistor MOS.
For the practical effect of the present invention, described process chip U2 the most preferentially uses the integrated core of AD603
Sheet realizes.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention can be according to the abnormal flavour concentration in the refrigerator detected by gas sensor QM automatically to ice
Case carries out sterilizing, sterilization, deodorization, ensures that the present invention can effectively eliminate the abnormal flavour in refrigerator, has
The biochemical reaction inhibiting vegetable or fruit internal of effect.
(2) signal of telecommunication of gas sensor QM transmission can be filtered by the present invention, effectively eliminates telecommunications
Disturb signal in number, make the signal of telecommunication more steady, ensure that the present invention can accurately control Deodorising to ice
Case carries out deodorization.
(3) electromagnetic interference of voltage can be eliminated or suppress by the present invention, improves the pulse value of output voltage,
Make output voltage and electric current keep stable, thus improve the present invention and control Deodorising refrigerator is carried out deodorization
Stability.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the second-order filter circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but the enforcement of the present invention
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by processing chip U2, diode rectifier U1, gas sensor
QM, transformator T, audion VT1, resistance R1, resistance R4, polar capacitor C1, polar capacitor C3,
Polar capacitor C9, Zener diode D2, inductance L1, second-order filter circuit, anti-jamming circuit, Yi Jiduo
Harmonic motion triggers circuit composition.
During connection, after positive electrode resistance R1 of polar capacitor C1 the colelctor electrode with audion VT1 be connected, its
Negative pole is connected with gas sensor QM.One end of inductance L1 is connected with the positive pole of polar capacitor C1,
Its other end is connected with the emitter stage of audion VT1.Second-order filter circuit is serially connected in polar capacitor C1's
Between positive pole and the IN pin processing chip U2.The N pole of Zener diode D2 is with process chip U2's
VPOS pin is connected, its P pole cathode output end with diode rectifier U1 after resistance R4 is connected
Connect.
Meanwhile, the positive pole of polar capacitor C3 is connected with the cathode output end of diode rectifier U1, it is born
Pole be connected with the cathode output end of diode rectifier U1 after ground connection.The positive pole of polar capacitor C9 and transformation
The Same Name of Ends of device T secondary inductance coil is connected, its negative pole is non-of the same name with transformator T secondary inductance coil
End is connected.Anti-jamming circuit respectively with process the FDBK pin of chip U2 and transformator T former limit electricity
The non-same polarity of sense coil is connected.It is former with transformator T that multi resonant vibration triggering circuit is serially connected in anti-jamming circuit
Between the Same Name of Ends of limit inductance coil.
The non-same polarity of GPOS pin limit former with the transformator T inductance coil of described process chip U2 is connected
Connect, its VPOS pin is connected with the cathode output end of diode rectifier U1, its GND pin ground connection；
The Same Name of Ends of described transformator T secondary inductance coil is connected with Deodorising respectively with non-same polarity；Described two
The input of pole pipe commutator U1 is connected with external power source.
Further, described anti-jamming circuit is by audion VT2, audion VT3, not gate IC1, resistance
R2, resistance R3, resistance R5, resistance R6, resistance R7, adjustable resistance R8, polar capacitor C2, polarity
Electric capacity C4, polar capacitor C5, diode D1, and diode D3 form.
During connection, the P pole of diode D1 is connected with the FDBK pin processing chip U2 after resistance R2
Connect, its N pole is connected with the colelctor electrode of audion VT2.The negative pole of polar capacitor C5 after resistance R5 with
The emitter stage of audion VT2 is connected, the backward end of NAND gate IC1 is connected after its positive electrode resistance R6.
The P pole of diode D3 is connected with the base stage of audion VT2, the negative pole of its N pole and polar capacitor C5
Ground connection after being connected.The positive pole of polar capacitor C4 positive pole with polar capacitor C5 after resistance R7 is connected,
Its minus earth.The positive pole of polar capacitor C2 colelctor electrode with audion VT3 after resistance R3 is connected,
Its negative pole is connected with the GPOS pin processing chip U2.One end of adjustable resistance R8 and audion VT3
Emitter stage be connected, its other end is connected with the positive pole of polar capacitor C5.
The forward end of emitter stage NAND gate IC1 of described audion VT2 is connected；Described audion VT3's
Colelctor electrode is connected with the positive pole of polar capacitor C4, its base stage is collectively forming anti-with the positive pole of polar capacitor C5
Disturb the outfan of circuit and be connected with multi resonant vibration triggering circuit.
Further, described multi resonant vibration trigger circuit by audion VT4, audion VT5, not gate IC2,
Not gate IC3, not gate IC4, field effect transistor MOS, resistance R9, resistance R10, resistance R11, polarity electricity
Hold C6, polar capacitor C7, polar capacitor C8, diode D4, diode D5, and Zener diode
D6 forms.
During connection, the positive pole of polar capacitor C6 colelctor electrode with audion VT5 after resistance R9 is connected,
Its negative pole is connected with the base stage of audion VT4.The N pole of diode D5 and the emitter stage of audion VT5
Be connected, its P pole is connected with the emitter stage of audion VT4.One end of resistance R11 and audion VT5
Emitter stage be connected, the forward end of NAND gate IC4 is connected after its other end.The negative pole of polar capacitor C7
The forward end of NAND gate IC3 is connected, its positive pole is connected with the base stage of audion VT5.Diode D4
N pole backward end of NAND gate IC2 after resistance R10 be connected, its P pole and polar capacitor C6 just
Pole is connected.The backward end of positive pole NAND gate IC4 of polar capacitor C8 is connected, its negative pole and field effect transistor
The grid of MOS is connected.The P pole of Zener diode D6 is connected with the source electrode of field effect transistor MOS, it
The Same Name of Ends of limit former with transformator T, N pole inductance coil is connected.
The positive pole of described polar capacitor C6 is connected with the base stage of audion VT3；Described audion VT4's
Colelctor electrode is connected with the positive pole of polar capacitor C5；The forward end of described not gate IC3 NAND gate IC2 respectively
Forward end is connected with the forward end of not gate IC4, its backward end then distinguishes the backward end of NAND gate IC2 and non-
The backward end of door IC4 is connected；The grounded drain of described field effect transistor MOS.
As in figure 2 it is shown, described second-order filter circuit is by amplifier P1, amplifier P2, audion VT6, electricity
Resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, can
Adjust resistance R19, polar capacitor C10, polar capacitor C11, polar capacitor C12, polar capacitor C13, pole
Property electric capacity C14, diode D7, diode D8, and inductance L2 composition.
During connection, the positive pole of polar capacitor C11 is connected with the positive pole of amplifier P1, its negative pole is as second order
The input of filter circuit is also connected with the positive pole of polar capacitor C1.The positive pole of polar capacitor C10 is through resistance
After R12 the negative pole with polar capacitor C11 be connected, its minus earth.The P pole of diode D7 is through resistance
After R13 the positive pole with amplifier P1 be connected, its N pole after resistance R16 with the outfan of amplifier P1
It is connected.The N pole of diode D8 base stage with audion VT6 after resistance R15 is connected, its P pole
After resistance R14, the negative pole with amplifier P1 is connected.One end of inductance L2 and the current collection of audion VT6
Ground connection after pole is connected, its other end is connected with the P pole of diode D8.
Meanwhile, the positive pole of polar capacitor C12 be connected with the outfan of amplifier P1, its negative pole and audion
The emitter stage of VT6 is connected.The negative pole of polar capacitor C13 is connected with the positive pole of amplifier P2, its positive pole
It is connected with the outfan of amplifier P1.One end of resistance R17 is connected with the negative pole of amplifier P2, it
Other end ground connection.The negative pole of polar capacitor C14 is connected with the outfan of amplifier P21, its positive pole is through electricity
It is connected with the positive pole of amplifier P2 after resistance R18.One end of adjustable resistance R19 and the positive pole of amplifier P2
Be connected, its other end is connected with the negative pole of polar capacitor C14.The outfan conduct of described amplifier P2
The outfan of second-order filter circuit is also connected with the IN pin processing chip U2.
During enforcement, for the practical effect of the present invention, described gas sensor QM the most preferentially have employed
XSAV12801 gas sensor realizes, and this gas sensor QM will detect the abnormal flavour concentration in refrigerator
Information is transferred to after being converted to the signal of telecommunication process chip U2, processes chip U2 then according to the telecommunications received
Number power compare with the baseline signal value processed in chip U2, thus the concentration of abnormal flavour in obtaining refrigerator
Value, when the abnormal flavour concentration value in refrigerator is too high, processes chip U2 and exports the signal of telecommunication, and audion VT2 leads
Logical ,+6V voltage is transferred to not gate IC1 through audion VT2, through not gate IC1 paraphase, and output low level,
Audion VT3 conducting bleeds off the electric charge on polar capacitor C5, and audion VT4 turns on and exports high level, and two
Pole pipe D5 ends, the multi-resonant trigger starting of oscillation being made up of not gate IC2 and not gate IC3 and not gate IC4,
Producing the square wave of 1890Hz, wherein, not gate IC2 and not gate IC3 and not gate IC4 is parallel connection buffer output
Level, square-wave signal is transferred to the grid of field effect transistor MOS by polar capacitor C8 after being filtered, by field effect transistor
MOS amplify after export high-voltage pulse to Deodorising, now, Deodorising start working ghost refrigerator carry out sterilizing,
Sterilization, deodorization, and the biochemical reaction within veterinary antibiotics is suppressed.When processing what chip U2 obtained
When gas sensor QM detects the abnormal flavour concentration value in refrigerator less than baseline signal value, process chip U then
Will not export the signal of telecommunication, audion VT2 then disconnects, and Deodorising then must not be electric, and stops going out refrigerator
Bacterium, sterilization, deodorization.
Meanwhile, the signal of telecommunication of gas sensor QM transmission can be filtered by the present invention, effectively eliminates electricity
Signal disturbs signal, makes the signal of telecommunication more steady, ensure that the present invention can accurately control Deodorising pair
Refrigerator carries out deodorization.The electromagnetic interference of voltage can be eliminated or suppress by the present invention, improves output voltage
Pulse value, makes output voltage and electric current keep stable, thus improves the present invention and control Deodorising and enter refrigerator
The stability of row deodorization.For the practical effect of the present invention, described process chip U2 the most preferentially uses
The integrated chip of AD603 realizes.
According to above-described embodiment, can well realize the present invention.
Claims (5)
1. a refrigerator automatic deodorizing control system based on second-order filter circuit, it is characterised in that main
By processing chip U2, diode rectifier U1, gas sensor QM, transformator T, audion VT1,
After positive electrode resistance R1, the colelctor electrode with audion VT1 is connected, negative pole is connected with gas sensor QM
Polar capacitor C1, one end is connected with the positive pole of polar capacitor C1, the sending out of the other end and audion VT1
The inductance L1 that emitter-base bandgap grading is connected, be serially connected in the positive pole of polar capacitor C1 with the IN pin processing chip U2 it
Between second-order filter circuit, N pole is connected with the VPOS pin processing chip U2, P pole is through resistance R4
The Zener diode D2 that cathode output end with diode rectifier U1 is connected afterwards, positive pole is whole with diode
After the cathode output end of stream device U1 is connected, negative pole is connected with the cathode output end of diode rectifier U1
The polar capacitor C3 of ground connection, positive pole is connected with the Same Name of Ends of transformator T secondary inductance coil, negative pole and change
The polar capacitor C9 that the non-same polarity of depressor T secondary inductance coil is connected, respectively with process chip U2's
The anti-jamming circuit that the non-same polarity of FDBK pin limit former with transformator T inductance coil is connected, and string
The multi resonant vibration being connected between the Same Name of Ends of anti-jamming circuit and transformator T former limit inductance coil triggers circuit group
Become；The non-same polarity of GPOS pin limit former with the transformator T inductance coil of described process chip U2 is connected,
Its VPOS pin is connected with the cathode output end of diode rectifier U1, its GND pin ground connection.
A kind of refrigerator automatic deodorizing based on second-order filter circuit the most according to claim 1 controls system
System, it is characterised in that described second-order filter circuit is by amplifier P1, amplifier P2, audion VT6, just
Pole is connected with the positive pole of amplifier P1, negative pole as second-order filter circuit input and and polar capacitor
The polar capacitor C11 that the positive pole of C1 is connected, positive pole after resistance R12 with the negative pole phase of polar capacitor C11
Connect, polar capacitor C10, the P pole of minus earth positive pole with amplifier P1 after resistance R13 is connected,
Diode D7, the N pole that N pole outfan with amplifier P1 after resistance R16 is connected is through resistance R15
Base stage with audion VT6 is connected afterwards, P pole negative pole with amplifier P1 after resistance R14 is connected
Diode D8, one end is connected with the colelctor electrode of audion VT6, the P pole phase of the other end and diode D8
The inductance L2 of ground connection after connection, positive pole is connected with the outfan of amplifier P1, negative pole and audion VT6
The polar capacitor C12 that is connected of emitter stage, negative pole is connected with the positive pole of amplifier P2, positive pole and amplification
The polar capacitor C13 that the outfan of device P1 is connected, one end is connected with the negative pole of amplifier P2, another
End ground connection resistance R17, negative pole is connected with the outfan of amplifier P21, positive pole after resistance R18 and
The polar capacitor C14 that the positive pole of amplifier P2 is connected, and one end is connected with the positive pole of amplifier P2,
The adjustable resistance R19 composition that the other end is connected with the negative pole of polar capacitor C14；Described amplifier P2's is defeated
Go out the end IN pin as the outfan of second-order filter circuit and with process chip U2 to be connected.
A kind of refrigerator automatic deodorizing based on second-order filter circuit the most according to claim 2 controls system
System, it is characterised in that described anti-jamming circuit is by audion VT2, audion VT3, not gate IC1, P pole
Be connected with the FDBK pin processing chip U2 after resistance R2, the colelctor electrode of N pole and audion VT2
The diode D1 being connected, negative pole emitter stage with audion VT2 after resistance R5 is connected, positive electrical
The base stage of polar capacitor C5, the P pole that after resistance R6, the backward end of NAND gate IC1 is connected and audion VT2
Be connected, N pole be connected with the negative pole of polar capacitor C5 after the diode D3 of ground connection, positive pole is through resistance R7
Afterwards the positive pole with polar capacitor C5 be connected, the polar capacitor C4 of minus earth, positive pole after resistance R3 with
The polarity that the colelctor electrode of audion VT3 is connected, negative pole is connected with the GPOS pin of process chip U2
Electric capacity C2, and one end is connected with the emitter stage of audion VT3, the other end and polar capacitor C5 just
The adjustable resistance R8 composition that pole is connected；The forward end of emitter stage NAND gate IC1 of described audion VT2
It is connected；The colelctor electrode of described audion VT3 is connected with the positive pole of polar capacitor C4, its base stage and pole
Property electric capacity C5 positive pole be collectively forming anti-jamming circuit outfan and with multi resonant vibration trigger circuit be connected.
A kind of refrigerator automatic deodorizing based on second-order filter circuit the most according to claim 3 controls system
System, it is characterised in that described multi resonant vibration trigger circuit by audion VT4, audion VT5, not gate IC2,
Not gate IC3, not gate IC4, field effect transistor MOS, positive pole after resistance R9 with the colelctor electrode of audion VT5
Be connected, polar capacitor C6, N pole that negative pole is connected with the base stage of audion VT4 and audion VT5
The diode D5 that emitter stage is connected, P pole is connected with the emitter stage of audion VT4, one end and three poles
The resistance R11 that the emitter stage of pipe VT5 is connected, the forward end of NAND gate IC4 is connected after the other end, negative
The polar capacitor C7 that the forward end of pole NAND gate IC3 is connected, positive pole is connected with the base stage of audion VT5,
N pole backward end of NAND gate IC2 after resistance R10 is connected, P pole is connected with the positive pole of polar capacitor C6
The diode D4 connect, the backward end of positive pole NAND gate IC4 is connected, the grid of negative pole and field effect transistor MOS
The polar capacitor C8 that pole is connected, and P pole is connected with the source electrode of field effect transistor MOS, N pole and change
The Zener diode D6 composition that the Same Name of Ends of depressor T former limit inductance coil is connected；Described polar capacitor C6
Positive pole be connected with the base stage of audion VT3；The colelctor electrode of described audion VT4 and polar capacitor C5
Positive pole be connected；The forward end of the forward end of described not gate IC3 NAND gate IC2 respectively and not gate IC4's
Forward end is connected, its backward end then distinguish NAND gate IC2 backward end be connected with the backward end of not gate IC4
Connect；The grounded drain of described field effect transistor MOS.
A kind of refrigerator automatic deodorizing based on second-order filter circuit the most according to claim 4 controls system
System, it is characterised in that described process chip U2 is the integrated chip of AD603.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528632.4A CN106016959A (en) | 2016-07-06 | 2016-07-06 | Automatic refrigerator deodorization control system based on second-order filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528632.4A CN106016959A (en) | 2016-07-06 | 2016-07-06 | Automatic refrigerator deodorization control system based on second-order filter circuit |
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| Publication Number | Publication Date |
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| CN106016959A true CN106016959A (en) | 2016-10-12 |
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|---|---|---|---|
| CN201610528632.4A Pending CN106016959A (en) | 2016-07-06 | 2016-07-06 | Automatic refrigerator deodorization control system based on second-order filter circuit |
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| Country | Link |
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| CN (1) | CN106016959A (en) |
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2016
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