CN105374174A - Humidifier water shortage alarm system based on rectification circuit - Google Patents
Humidifier water shortage alarm system based on rectification circuit Download PDFInfo
- Publication number
- CN105374174A CN105374174A CN201510943730.XA CN201510943730A CN105374174A CN 105374174 A CN105374174 A CN 105374174A CN 201510943730 A CN201510943730 A CN 201510943730A CN 105374174 A CN105374174 A CN 105374174A
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- triode
- pole
- diode
- electric capacity
- resistance
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
Abstract
The invention discloses a humidifier water shortage alarm system based on a rectification circuit, which is characterized by comprising a central processor, an A/D converter, a water shortage alarm circuit, a displayer, a power supply, a water level sensor connected to the A/D converter and a rectification circuit which is connected between the power supply and the water shortage alarm circuit in series, wherein the A/D converter, the water shortage alarm circuit, the displayer, and the power supply are connected to the central processor. The invention not only is simple in structure and low in the cost, but also can perform alarming through the water shortage circuit when the water is in the shortage in the humidifier. The invention can prompt the user to add water, which is very intelligent and applicable to popularization.
Description
Technical field
The present invention relates to a kind of warning system, specifically refer to a kind of humidifier shortage alarming system based on rectification circuit.
Background technology
Humidifier is because can carry out humidification to room air and be subject to the favor of people gradually, and especially wintry weather is dry, and humidifier has just become the requisite household electrical appliance of a lot of people.Need when using humidifier to add water in humidifier, by the mode by spraying by water eruption in atmosphere, along with the continual eruption water smoke of humidifier, the water in humidifier is by fewer and feweri for humidifier.After the water in humidifier has been erupted, humidifier will no longer be sprayed, and therefore can not continue to carry out humidification to room air.The humidifier of current use cannot notify that user's water is finished, humidifier therefore often can be caused in initiate mode but cannot carry out the situation of humidification because of anhydrous.Humidifier works in anhydrous conditions and easily causes humidifier fault, goes back the wastes power energy simultaneously.
Summary of the invention
The humidifier that the object of the invention is to overcome use cannot notify that user's water is finished; therefore humidifier often can be caused in initiate mode but the defect of the situation of humidification cannot be carried out because of anhydrous; not only structure is simple to provide one; and with low cost, can also water shortage in humidifier time point out user to add water in time the humidifier shortage alarming system based on rectification circuit.
The present invention is achieved through the following technical solutions:
A kind of humidifier shortage alarming system based on rectification circuit, primarily of central processing unit, the A/D converter be all connected with central processing unit, lack of water warning circuit, display and power supply, the level sensor be connected with A/D converter, and the rectification circuit be serially connected between power supply and lack of water warning circuit forms; Described power supply is also connected with level sensor; The power supply input circuit that described lack of water warning circuit is connected with rectification circuit by input end, the signal input circuit that input end is connected with central processing unit, and the warning circuit be connected with signal input circuit with power supply input circuit respectively forms.
Further, described rectification circuit is by diode rectifier U, triode VT6, triode VT7, field effect transistor Q2, positive pole is connected with the positive output end of diode rectifier U, the electric capacity C6 that negative pole is connected with the negative output terminal of diode rectifier U, positive pole is connected with the positive pole of electric capacity C6 after diode D8, the electric capacity C7 that negative pole is connected with the collector of triode VT7, be serially connected in the resistance R11 between the collector of triode VT6 and the emitter of triode VT7, one end is connected with the emitter of triode VT6, the resistance R10 that the other end is connected with the negative pole of electric capacity C6, P pole is connected with the drain electrode of field effect transistor Q2, the diode D9 that N pole is connected with the negative pole of electric capacity C6, positive pole is connected with the grid of field effect transistor Q2 after resistance R12, the electric capacity C8 that negative pole is connected with the negative pole of electric capacity C6, P pole is connected with the positive pole of electric capacity C8, the diode D10 that N pole is connected with the base stage of triode VT7, and the negative pole of one end and electric capacity C8 jointly as rectification circuit output terminal and be connected with power supply input circuit, the resistance R13 that the other end is connected with the base stage of triode VT7 forms, the base stage of described triode VT6 is connected with the positive pole of electric capacity C6, and its emitter is connected with the source electrode of field effect transistor Q2, and the grid of described field effect transistor Q2 is connected with the collector of triode VT7, two input ends of described diode rectifier U as rectification circuit input end and be connected with power supply.
Further, described power supply input circuit is by triode VT1, triode VT2, one end is connected with the base stage of triode VT7 after resistance R13, the inductance L that the other end is connected with the emitter of triode VT1 after diode D1, positive pole is connected with the tie point of inductance L with diode D1, the electric capacity C1 of minus earth, be serially connected in the resistance R1 between the base stage of triode VT1 and the base stage of triode VT2, be serially connected in the resistance R2 between the collector of triode VT1 and the collector of triode VT2, and P pole is connected with the collector of triode VT1, the diode D2 that N pole is connected with the emitter of triode VT2 forms, the emitter of described triode VT1 is connected with warning circuit, and its collector is connected with signal input circuit, and its base stage is connected with the negative pole of electric capacity C8.
Further, described signal input circuit is by triode VT3, triode VT4, field effect transistor Q1, N pole is connected with the collector of triode VT3, the diode D3 that P pole is connected with the collector of triode VT1 after relay K, positive pole is connected with the emitter of triode VT3, the electric capacity C2 that negative pole is connected with the source electrode of field effect transistor Q1 after resistance R5, be serially connected in the resistance R3 between the base stage of triode VT3 and the base stage of triode VT4, one end is connected with the emitter of triode VT3, the resistance R4 of other end ground connection, P pole is connected with the emitter of triode VT4, the diode D4 that N pole is connected with the grid of field effect transistor Q1, positive pole is connected with the collector of triode VT4, the electric capacity C3 of minus earth, and the resistance R6 be serially connected between the collector of triode VT4 and the drain electrode of field effect transistor Q1 forms, the grid of described field effect transistor Q1 is connected with warning circuit after the normally opened contact K-1 of relay K, and the base stage of described triode VT3 is connected with central processing unit as the input end of signal input circuit.
In order to ensure effect, described warning circuit is by triode VT5, one end is connected with the emitter of triode VT1, the resistance R7 that the other end is connected with the base stage of triode VT5, P pole is connected with the grid of field effect transistor Q1 after the normally opened contact K-1 of relay K, the diode D7 that N pole is connected with the collector of triode VT5 after resistance R8, P pole is connected with the emitter of triode VT5, the diode D6 that N pole is connected with the N pole of diode D7 after resistance R9, positive pole is connected with the base stage of triode VT5 after diode D5, the electric capacity C5 that negative pole is connected with the N pole of diode D6 after acoustical generator BL, the LED be in parallel with acoustical generator BL, and positive pole is connected with the N pole of diode D7, the electric capacity C4 of minus earth forms.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention's not only simple in structure and low in cost, its lack of water warning circuit also can in humidifier alarm user immediately during water shortage, cause humidifier fault to prevent humidifier from working in anhydrous conditions, simultaneously the also wastes power energy.
(2) lack of water warning circuit of the present invention is the combination of power supply input circuit, signal input circuit and warning circuit three, power supply input circuit is used for processing supply voltage, for whole lack of water warning circuit provides stable voltage, ensure the stable operation of whole circuit; Signal input circuit can receive the control signal of central processing unit and turning circuit when humidifier water shortage, so that report to the police; Warning circuit is reported to the police by warning lamp and acoustical generator after signal input circuit must conduct simultaneously, therefore can ensure that the present invention reports to the police immediately when the water shortage of humidifier.
(3) rectification circuit is provided with between power supply of the present invention and lack of water warning circuit, rectifying and voltage-stabilizing process can be carried out to power supply by rectification circuit, so that provide stable current/voltage for lack of water warning circuit, thus the stable operation of lack of water warning circuit can be ensured.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of lack of water warning circuit of the present invention.
Fig. 3 is the electrical block diagram of rectification circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, shortage alarming system of the present invention, primarily of central processing unit, the A/D converter be all connected with central processing unit, lack of water warning circuit, display and power supply, the level sensor be connected with A/D converter, and the rectification circuit be serially connected between power supply and lack of water warning circuit forms; Described power supply is also connected with level sensor.During use, it is inner for filling the cavity bottom of water that described level sensor is arranged on humidifier, and when the water yield of humidifier inside is sufficient, level sensor will not had by water logging, thus cannot gather water level information, and warning system of the present invention is in dormant state.When the water shortage of humidifier inside, level sensor will surface.Simultaneously, level sensor gathers water level information and this water level information is sent to A/D converter and carries out analog to digital conversion, thus the water level signal of level sensor collection is converted to the signal that central processing unit can carry out computing, and this signal is sent to central processing unit.What adopt in the present embodiment is ADC0809A/D converter, and what described central processing unit adopted is SOP8 integrated chip.Water level information shows over the display after the signal after conversion is carried out computing by described central processing unit, and send a control signal to shortage alarming system, shortage alarming system then can report to the police to point out user to need to add water simultaneously.
During enforcement, described lack of water warning circuit is made up of power supply input circuit, signal input circuit and warning circuit, wherein, the power supply input circuit that described lack of water warning circuit is connected with power supply by input end, the signal input circuit that input end is connected with central processing unit, and the warning circuit be connected with signal input circuit with power supply input circuit respectively forms.
Concrete, as shown in Figure 2, described power supply input circuit is by triode VT1, and triode VT2, inductance L, resistance R1, resistance R2, diode D1, diode D2 and electric capacity C1 form.During connection, one end of described inductance L and the base stage of triode VT1 are jointly as the input end of power supply input circuit, and its other end is connected with the emitter of triode VT1 after diode D1.Wherein, the P pole of described diode D1 is connected with inductance L, and its N pole is then connected with the emitter of triode VT1.The positive pole of described electric capacity C1 is connected with the tie point of inductance L with diode D1, its minus earth.Described resistance R1 is serially connected between the base stage of triode VT1 and the base stage of triode VT2, and described resistance R2 is serially connected between the collector of triode VT1 and the collector of triode VT2.The P pole of described diode D2 is connected with the collector of triode VT1, and its N pole is connected with the emitter of triode VT2.
Meanwhile, the emitter of described triode VT1 is connected with warning circuit, and its collector is connected with signal input circuit.Described power supply input circuit can process power supply, so that provide the supply voltage of stable operation for whole lack of water warning circuit.
Described signal input circuit is by triode VT3, and triode VT4, field effect transistor Q1, relay K, diode D3, diode D4, electric capacity C2, electric capacity C3, resistance R3, resistance R4, resistance R5 and resistance R6 form.During connection, the N pole of described diode D3 is connected with the collector of triode VT3, and its P pole is connected with the collector of triode VT1 after relay K.The positive pole of described electric capacity C2 is connected with the emitter of triode VT3, and its negative pole is connected with the source electrode of field effect transistor Q1 after resistance R5.Described resistance R3 is serially connected between the base stage of triode VT3 and the base stage of triode VT4.One end of described resistance R4 is connected with the emitter of triode VT3, its other end ground connection.The P pole of described diode D4 is connected with the emitter of triode VT4, and its N pole is connected with the grid of field effect transistor Q1.The positive pole of described electric capacity C3 is connected with the collector of triode VT4, its minus earth.Between the collector that described resistance R6 is serially connected in triode VT4 and the drain electrode of field effect transistor Q1.
Meanwhile, the grid of described field effect transistor Q1 is connected with warning circuit after the normally opened contact K-1 of relay K, and the base stage of described triode VT3 is connected with the ZCD pin of SOP8 integrated chip as the input end of signal input circuit.A/D converter in the present embodiment is connected with the MULT pin of SOP8 integrated chip, and described display is connected with the COMP pin of SOP8 integrated chip, and described power supply is then connected with VCC pin with the INV pin of SOP8 integrated chip respectively.
When in humidifier during water shortage, central processing unit then sends control signal, the control signal input lack of water warning circuit that central processing unit then can send by described signal input circuit, thus reports to the police by warning circuit.Concrete, when the water yield in humidifier is sufficient, signal input circuit can not get the control signal that central processing unit sends, and central processing unit sends low level signal to signal input circuit, the normally opened contact K-1 of relay K remains open, and warning system is in dormant state.When in humidifier during water shortage, central processing unit sends high level alarm control signal, and relay K obtains electric, and its normally opened contact K-1 closes, and get final product guide alarm circuit, warning circuit can be reported to the police, thus reminding user adds water.
Described warning circuit is by triode VT5, and resistance R7, resistance R8, resistance R9, diode D5, diode D6, diode D7, electric capacity C4, electric capacity C5, acoustical generator BL and LED form.During connection, one end of described resistance R7 is connected with the emitter of triode VT1, and its other end is connected with the base stage of triode VT5.The P pole of described diode D7 is connected with the grid of field effect transistor Q1 after the normally opened contact K-1 of relay K, and its N pole is connected with the collector of triode VT5 after resistance R8.The P pole of described diode D6 is connected with the emitter of triode VT5, and its N pole is connected with the N pole of diode D7 after resistance R9.The positive pole of described electric capacity C5 is connected with the base stage of triode VT5 after diode D5, and its negative pole is connected with the N pole of diode D6 after acoustical generator BL.Wherein, the P pole of described diode D5 is connected with the positive pole of electric capacity C5, and its N pole is connected with the base stage of triode VT5.The luminescence that described diode (LED) and acoustical generator BL are in parallel.The positive pole of described electric capacity C4 is connected with the N pole of diode D7, its minus earth.When in humidifier during water shortage, described warning circuit is provided with acoustical generator BL and diode (LED), can be reported to the police by warning lamp and chimes of doom simultaneously.
As shown in Figure 3, described rectification circuit is by diode rectifier U, and triode VT6, triode VT7, field effect transistor Q2, electric capacity C6, electric capacity C7, electric capacity C8, diode D8, diode D9, diode D10, resistance R10, resistance R11, resistance R12 and resistance R13 form.
During connection, the positive pole of described electric capacity C6 is connected with the positive output end of diode rectifier U, and its negative pole is connected with the negative output terminal of diode rectifier U.The positive pole of described electric capacity C7 is connected with the positive pole of electric capacity C6 after diode D8, and its negative pole is connected with the collector of triode VT7.Wherein, the P pole of described diode D8 is connected with the positive pole of electric capacity C6, and its N pole is then connected with the positive pole of electric capacity C7.Described resistance R11 is serially connected between the collector of triode VT6 and the emitter of triode VT7.One end of described resistance R10 is connected with the emitter of triode VT6, and its other end is connected with the negative pole of electric capacity C6.The P pole of described diode D9 is connected with the drain electrode of field effect transistor Q2, and its N pole is connected with the negative pole of electric capacity C6.The positive pole of described electric capacity C8 is connected with the grid of field effect transistor Q2 after resistance R12, and its negative pole is connected with the negative pole of electric capacity C6.The P pole of described diode D10 is connected with the positive pole of electric capacity C8, and its N pole is connected with the base stage of triode VT7.One end of described resistance R13 is connected with the P pole of diode D1 after inductance L, and its other end is connected with the base stage of triode VT7, and the negative pole of described electric capacity C8 is also connected with the base stage of triode VT1.
Meanwhile, the base stage of described triode VT6 is connected with the positive pole of electric capacity C6, and its emitter is connected with the source electrode of field effect transistor Q2, and the grid of described field effect transistor Q2 is connected with the collector of triode VT7.Two input ends of described diode rectifier U as rectification circuit input end and be connected with power supply.
Rectification circuit is arranged between power supply and lack of water warning circuit, can carry out rectifying and voltage-stabilizing process to power supply, so that provide stable current/voltage for lack of water warning circuit, thus can ensure the stable operation of lack of water warning circuit.Wherein, described diode rectifier U and electric capacity C6 forms a current rectifying and wave filtering circuit, can carry out rectifying and wave-filtering process to power supply.Described triode VT6, field effect transistor Q2, triode VT7, diode D8, electric capacity C7, resistance R11 and resistance R10 can carry out voltage stabilizing process to circuit, and described resistance R12, resistance R13, diode D9, diode D10 and electric capacity C8 can carry out denoising to circuit.By the setting of rectification circuit, namely can be the current/voltage that lack of water warning circuit provides stable.
As mentioned above, just the present invention can be realized preferably.
Claims (5)
1. the humidifier shortage alarming system based on rectification circuit, it is characterized in that: primarily of central processing unit, the A/D converter be all connected with central processing unit, lack of water warning circuit, display and power supply, the level sensor be connected with A/D converter, and the rectification circuit be serially connected between power supply and lack of water warning circuit forms; Described power supply is also connected with level sensor; The power supply input circuit that described lack of water warning circuit is connected with rectification circuit by input end, the signal input circuit that input end is connected with central processing unit, and the warning circuit be connected with signal input circuit with power supply input circuit respectively forms.
2. a kind of humidifier shortage alarming system based on rectification circuit according to claim 1, it is characterized in that: described rectification circuit is by diode rectifier U, triode VT6, triode VT7, field effect transistor Q2, positive pole is connected with the positive output end of diode rectifier U, the electric capacity C6 that negative pole is connected with the negative output terminal of diode rectifier U, positive pole is connected with the positive pole of electric capacity C6 after diode D8, the electric capacity C7 that negative pole is connected with the collector of triode VT7, be serially connected in the resistance R11 between the collector of triode VT6 and the emitter of triode VT7, one end is connected with the emitter of triode VT6, the resistance R10 that the other end is connected with the negative pole of electric capacity C6, P pole is connected with the drain electrode of field effect transistor Q2, the diode D9 that N pole is connected with the negative pole of electric capacity C6, positive pole is connected with the grid of field effect transistor Q2 after resistance R12, the electric capacity C8 that negative pole is connected with the negative pole of electric capacity C6, P pole is connected with the positive pole of electric capacity C8, the diode D10 that N pole is connected with the base stage of triode VT7, and the negative pole of one end and electric capacity C8 jointly as rectification circuit output terminal and be connected with power supply input circuit, the resistance R13 that the other end is connected with the base stage of triode VT7 forms, the base stage of described triode VT6 is connected with the positive pole of electric capacity C6, and its emitter is connected with the source electrode of field effect transistor Q2, and the grid of described field effect transistor Q2 is connected with the collector of triode VT7, two input ends of described diode rectifier U as rectification circuit input end and be connected with power supply.
3. a kind of humidifier shortage alarming system based on rectification circuit according to claim 2, it is characterized in that: described power supply input circuit is by triode VT1, triode VT2, one end is connected with the base stage of triode VT7 after resistance R13, the inductance L that the other end is connected with the emitter of triode VT1 after diode D1, positive pole is connected with the tie point of inductance L with diode D1, the electric capacity C1 of minus earth, be serially connected in the resistance R1 between the base stage of triode VT1 and the base stage of triode VT2, be serially connected in the resistance R2 between the collector of triode VT1 and the collector of triode VT2, and P pole is connected with the collector of triode VT1, the diode D2 that N pole is connected with the emitter of triode VT2 forms, the emitter of described triode VT1 is connected with warning circuit, and its collector is connected with signal input circuit, and its base stage is connected with the negative pole of electric capacity C8.
4. a kind of humidifier shortage alarming system based on rectification circuit according to claim 3, it is characterized in that: described signal input circuit is by triode VT3, triode VT4, field effect transistor Q1, N pole is connected with the collector of triode VT3, the diode D3 that P pole is connected with the collector of triode VT1 after relay K, positive pole is connected with the emitter of triode VT3, the electric capacity C2 that negative pole is connected with the source electrode of field effect transistor Q1 after resistance R5, be serially connected in the resistance R3 between the base stage of triode VT3 and the base stage of triode VT4, one end is connected with the emitter of triode VT3, the resistance R4 of other end ground connection, P pole is connected with the emitter of triode VT4, the diode D4 that N pole is connected with the grid of field effect transistor Q1, positive pole is connected with the collector of triode VT4, the electric capacity C3 of minus earth, and the resistance R6 be serially connected between the collector of triode VT4 and the drain electrode of field effect transistor Q1 forms, the grid of described field effect transistor Q1 is connected with warning circuit after the normally opened contact K-1 of relay K, and the base stage of described triode VT3 is connected with central processing unit as the input end of signal input circuit.
5. a kind of humidifier shortage alarming system based on rectification circuit according to claim 4, it is characterized in that: described warning circuit is by triode VT5, one end is connected with the emitter of triode VT1, the resistance R7 that the other end is connected with the base stage of triode VT5, P pole is connected with the grid of field effect transistor Q1 after the normally opened contact K-1 of relay K, the diode D7 that N pole is connected with the collector of triode VT5 after resistance R8, P pole is connected with the emitter of triode VT5, the diode D6 that N pole is connected with the N pole of diode D7 after resistance R9, positive pole is connected with the base stage of triode VT5 after diode D5, the electric capacity C5 that negative pole is connected with the N pole of diode D6 after acoustical generator BL, the LED be in parallel with acoustical generator BL, and positive pole is connected with the N pole of diode D7, the electric capacity C4 of minus earth forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943730.XA CN105374174A (en) | 2015-12-16 | 2015-12-16 | Humidifier water shortage alarm system based on rectification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943730.XA CN105374174A (en) | 2015-12-16 | 2015-12-16 | Humidifier water shortage alarm system based on rectification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105374174A true CN105374174A (en) | 2016-03-02 |
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ID=55376326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510943730.XA Withdrawn CN105374174A (en) | 2015-12-16 | 2015-12-16 | Humidifier water shortage alarm system based on rectification circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374174A (en) |
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2015
- 2015-12-16 CN CN201510943730.XA patent/CN105374174A/en not_active Withdrawn
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Application publication date: 20160302 |