CN104283545A - Ultrasonic amplitude control circuit device and ultrasonic humidifier - Google Patents
Ultrasonic amplitude control circuit device and ultrasonic humidifier Download PDFInfo
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- CN104283545A CN104283545A CN201310280428.1A CN201310280428A CN104283545A CN 104283545 A CN104283545 A CN 104283545A CN 201310280428 A CN201310280428 A CN 201310280428A CN 104283545 A CN104283545 A CN 104283545A
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- circuit
- type triode
- amplitude control
- control circuit
- resistance
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- 239000003595 mist Substances 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 230000010355 oscillation Effects 0.000 claims abstract description 4
- 230000026683 transduction Effects 0.000 claims description 14
- 238000010361 transduction Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides an ultrasonic amplitude control circuit device and an ultrasonic humidifier. The device comprises a fog quantity setting circuit, an oscillating circuit, a sampling circuit and an amplitude control circuit; the fog amount setting circuit comprises a triode Q3, a power supply and a control end; the power supply is connected with the collector electrode of the triode Q3; the amplitude control circuit comprises a triode Q2 and a resistor R6, the collector of the triode Q2 is connected with the oscillation circuit, and the emitter of the triode is connected with the fog amount setting circuit; the oscillating circuit comprises a transducer B1 and a capacitance three-point oscillating circuit; the sampling circuit is connected with the transducer B1 and is used for acquiring the voltage of the transducer B1; the sampling circuit is connected with the base of a transistor Q2. After the structure is adopted, the invention has the following advantages: the humidifier has the advantages of low cost, high circuit stability and reliability, and capability of accurately controlling the power and the mist output of the humidifier.
Description
Technical field
The present invention relates to household appliance technical field, particularly a kind of ultrasonic amplitude control circuit device and ultrasonic humidifier.
Background technology
Along with improving constantly of people's living standard, the application of ultrasonic humidifier in people's life is also more and more extensive.
But in existing ultrasonic humidifier, because the parameter of the triode of transduction piece and oscillating circuit is inconsistent, thus cause when producing in batches, the deviation (generally having ± 60ml/h) of atomization quantity is comparatively large, has influence on the quality of ultrasonic humidifier.The consistency of ultrasonic humidifier atomization quantity during in order to ensure to produce in batches, general machine, need in oscillating circuit, add manual adjustment semifixed resistor, Modulating Power adjusts atomization quantity, to ensure the consistency of its atomization quantity.But the defect that the method being undertaken adjusting by semifixed resistor exists is poor reliability, and accuracy is not high, operating difficulties, and cost is higher.
Summary of the invention
The object of this invention is to provide a kind of accurate, stable, efficient, with low cost ultrasonic amplitude control circuit device and ultrasonic humidifier.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of ultrasonic amplitude control circuit device, comprises mist amount initialization circuit, oscillating circuit, sample circuit and amplitude control circuit;
Described mist amount initialization circuit comprises NPN type triode Q3, power supply and control end;
Described power supply is connected with the collector electrode of described NPN type triode Q3;
Described control end is connected with described NPN type triode Q3 base stage, for regulating NPN type triode Q3 emitter current according to the setting of mist amount;
The base earth of described triode Q3;
Described amplitude control circuit comprises PNP type triode Q2 and biasing resistor R6;
Described PNP type triode Q2 emitter is connected with NPN type triode Q3 emitter;
The collector electrode of described PNP type triode Q2 is connected with described oscillating circuit, powers for giving described oscillating circuit;
The base stage of described PNP type triode Q2 is connected with sample circuit;
Described oscillating circuit comprises transduction piece B1 and Colpitts oscillation circuit;
Described sample circuit is connected with described transduction piece B1, for gathering the oscillating voltage of described transduction piece B1;
Described sample circuit is connected with the base stage of described PNP type triode Q2, the base voltage of described PNP type triode Q2 is changed according to the oscillating voltage collected, the change of the potential difference of the emitter of described PNP type triode Q2 and the base stage of described PNP type triode Q2, change the internal resistance of described PNP type triode, thus change conduction amount.
More preferably, described sample circuit also comprises resistance R4, resistance R5, because the magnitude of voltage sampled is very large, can damages circuit devcie, therefore resistance R4, resistance R5, for dividing potential drop, make the voltage sampled within amplitude control circuit operating voltage range.
More preferably, described sample circuit also comprises rectification circuit, and the AC rectification for sampling is direct current;
Described rectification circuit comprises diode D1, diode D2;
Described transduction piece is connected with described diode D1 positive pole by resistance R4;
Described diode D1 negative pole is connected with diode D2 positive pole;
Described diode D2 negative pole is connected with the base stage of described triode Q2.
More preferably, described rectification circuit also comprises electric capacity C7;
Described electric capacity C7 one end contact resistance R4, R5, the other end connects rectification circuit.For isolating alternating voltage.
More preferably, described sample circuit also comprises electric capacity C9, for carrying out filtering to the oscillating voltage collected; Described electric capacity C9 positive pole is connected with the base stage of described triode Q2, and negative pole is connected with described diode D1 positive pole and ground connection.
More preferably, described sample circuit also comprises resistance R7;
Described resistance R7 one end is connected with the base stage of described triode Q2 and described electric capacity C9 positive pole respectively, and other end ground connection, as load resistance.
The present invention also provides a kind of ultrasonic humidifier, comprises the ultrasonic amplitude control circuit device of above any one technical characteristic.
The invention has the beneficial effects as follows:
After adopting said structure, tool of the present invention is had the following advantages: with low cost, do not need manual operation, circuit stability, reliability are higher, accurately can control power and the fog-supplying amount of humidifier.
Accompanying drawing explanation
Fig. 1 is ultrasonic amplitude control circuit apparatus structure schematic diagram of the present invention;
Fig. 2 is ultrasonic amplitude control circuit one embodiment circuit diagram of the present invention;
Wherein: 1 mist amount initialization circuit; 2 oscillating circuits; 3 amplitude control circuits; 4 sample circuits.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, ultrasonic amplitude control circuit device of the present invention and ultrasonic humidifier are further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, 2, a kind of amplitude control circuit device, comprises mist amount initialization circuit 1, oscillating circuit 2, sample circuit 4 and amplitude control circuit 3;
Mist amount initialization circuit 1 comprises NPN type triode Q3, power supply and control end;
Power supply is connected with the collector electrode of NPN type triode Q3;
Control end is connected with NPN type triode Q3 base stage, for regulating NPN type triode Q3 emitter current according to the setting of mist amount;
The base earth of described triode Q3;
Amplitude control circuit 3 comprises PNP type triode Q2 and biasing resistor R6;
PNP type triode Q2 emitter is connected with NPN type triode Q3 emitter;
The collector electrode of PNP type triode Q2 is connected with oscillating circuit 2, powers for giving oscillating circuit 2;
The base stage of PNP type triode Q2 is connected with sample circuit;
Oscillating circuit 2 comprises transduction piece B1 and Colpitts oscillation circuit;
Sample circuit 4 is connected with transduction piece B1, for gathering the oscillating voltage of transduction piece B1;
Sample circuit 4 is connected with the base stage of PNP type triode Q2, the base voltage of PNP type triode Q2 is changed according to the oscillating voltage collected, the change of the potential difference of the emitter of PNP type triode Q2 and the base stage of PNP type triode Q2, change the internal resistance of described PNP type triode, thus change conduction amount, regulate the collector current of PNP type triode Q2.
The oscillating voltage collecting transduction piece B1 when sample circuit 4 increases, under current mist amount set point, between the base stage of PNP type triode Q2 and emitter, potential difference diminishes, the base voltage of PNP type triode Q2 exceedes current set value, the interior resistive of PNP type triode Q2 is large, conduction amount diminishes, thus reduces the operating current of oscillating circuit 2, thus reduces power.This mode eliminates manual regulative mode, achieves Automated condtrol, and controls more accurate, stable, efficient, also a saving cost simultaneously and is easy to operation.
More preferably, as a kind of embodiment of the present invention, sample circuit 4 also comprises resistance R4, R5, for dividing potential drop, makes the voltage sampled within amplitude control circuit operating voltage range.
Because the magnitude of voltage sampled is very large, can circuit devcie be damaged, therefore resistance R4, resistance R5, for dividing potential drop, make the voltage sampled within amplitude control circuit operating voltage range.
More preferably, as another kind of embodiment of the present invention, sample circuit 4 comprises rectification circuit, and the AC rectification for sampling is direct current;
Described rectification circuit comprises diode D1, diode D2;
Transduction piece is connected with diode D1 positive pole by resistance R4;
Diode D1 negative pole is connected with diode D2 positive pole;
Diode D2 negative pole is connected with the base stage of PNP type triode Q2.
More preferably, as another kind of embodiment of the present invention, rectification circuit also comprises electric capacity C7;
Described electric capacity C7 one end contact resistance R4, R5, the other end connects rectification circuit, for isolating alternating voltage.
More preferably, sample circuit 4 also comprises electric capacity C9, for carrying out filtering to the oscillating voltage collected; Electric capacity C9 positive pole is connected with the base stage of PNP type triode Q2, and negative pole is connected with diode D1 positive pole and ground connection.
More preferably, as another kind of embodiment of the present invention, sample circuit 4 also comprises resistance R7;
Resistance R7 one end is connected with the base stage of PNP type triode Q2 and electric capacity C9 positive pole respectively, and other end ground connection, as load resistance.
In the present embodiment, also provide a kind of ultrasonic humidifier, comprise this ultrasonic amplitude control circuit device described in above any one embodiment.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (7)
1. a ultrasonic amplitude control circuit device, is characterized in that:
Comprise mist amount initialization circuit, oscillating circuit, sample circuit and amplitude control circuit;
Described mist amount initialization circuit comprises NPN type triode Q3, power supply and control end;
Described power supply is connected with the collector electrode of described NPN type triode Q3;
Described control end is connected with the base stage of described NPN type triode Q3, for regulating the emitter current of NPN type triode Q3 according to the setting of mist amount;
The base earth of described NPN type triode Q3;
Described amplitude control circuit comprises PNP type triode Q2 and biasing resistor R6;
The emitter of described PNP type triode Q2 is connected with the emitter of NPN type triode Q3;
The collector electrode of described PNP type triode Q2 is connected with described oscillating circuit, powers for giving described oscillating circuit;
The base stage of described PNP type triode Q2 is connected with sample circuit;
Described oscillating circuit comprises transduction piece B1 and Colpitts oscillation circuit;
Described sample circuit is connected with described transduction piece B1, for gathering the oscillating voltage of described transduction piece B1;
Described sample circuit is connected with the base stage of described PNP type triode Q2, the base voltage of described PNP type triode Q2 is changed according to the oscillating voltage collected, the change of the potential difference of the emitter of described PNP type triode Q2 and the base stage of described PNP type triode Q2, change the internal resistance of described PNP type triode Q2, thus change conduction amount.
2. ultrasonic amplitude control circuit device according to claim 1, is characterized in that:
Described sample circuit also comprises resistance R4, resistance R5;
Described resistance R4 and described resistance R5, for dividing potential drop, makes the voltage sampled within amplitude control circuit operating voltage range.
3. ultrasonic amplitude control circuit device according to claim 2, is characterized in that:
Described sample circuit also comprises rectification circuit, and the AC rectification for sampling is direct current;
Described rectification circuit comprises diode D1, diode D2;
Described transduction piece is connected with described diode D1 positive pole by resistance R4;
Described diode D1 negative pole is connected with diode D2 positive pole;
Described diode D2 negative pole is connected with the base stage of described triode Q2.
4. ultrasonic amplitude control circuit device according to claim 3, is characterized in that:
Described rectification circuit also comprises electric capacity C7;
Described electric capacity C7 one end contact resistance R4, R5, the other end connects rectification circuit, for isolating alternating voltage.
5. ultrasonic amplitude control circuit device according to claim 3, is characterized in that:
Described sample circuit also comprises electric capacity C9, for carrying out filtering to the oscillating voltage collected;
Described electric capacity C9 positive pole is connected with the base stage of described triode Q2, and negative pole is connected with described diode D1 positive pole and ground connection.
6. ultrasonic amplitude control circuit device according to claim 5, is characterized in that:
Described sample circuit also comprises resistance R7;
Described resistance R7 one end is connected with the base stage of described triode Q2 and described electric capacity C9 positive pole respectively, and other end ground connection, as load resistance.
7. a ultrasonic humidifier, is characterized in that:
Comprise the ultrasonic amplitude control circuit device described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280428.1A CN104283545A (en) | 2013-07-04 | 2013-07-04 | Ultrasonic amplitude control circuit device and ultrasonic humidifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280428.1A CN104283545A (en) | 2013-07-04 | 2013-07-04 | Ultrasonic amplitude control circuit device and ultrasonic humidifier |
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| Publication Number | Publication Date |
|---|---|
| CN104283545A true CN104283545A (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310280428.1A Pending CN104283545A (en) | 2013-07-04 | 2013-07-04 | Ultrasonic amplitude control circuit device and ultrasonic humidifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524373A (en) * | 2016-11-16 | 2017-03-22 | 广州奥迪威传感应用科技有限公司 | Humidifying method and device and aroma humidifier |
| CN110057061A (en) * | 2018-09-05 | 2019-07-26 | 佛山市顺德区德尔玛电器有限公司 | A kind of humidifier atomization PID control system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220745A (en) * | 1975-07-22 | 1977-02-16 | Matsushita Electric Ind Co Ltd | Oscillator for ultrasonic wave vibrator |
| CN200957394Y (en) * | 2006-09-30 | 2007-10-10 | 王剑 | Ultrasonic atomizer circuit |
| CN201885353U (en) * | 2010-11-15 | 2011-06-29 | 珠海格力电器股份有限公司 | Ultrasonic humidifier |
| CN202002249U (en) * | 2010-11-18 | 2011-10-05 | 珠海格力电器股份有限公司 | Ultrasonic humidifier with overheat self-locking protection |
| CN202238482U (en) * | 2011-09-02 | 2012-05-30 | 杨义根 | Ultrasonic atomizer |
| CN203340046U (en) * | 2013-07-04 | 2013-12-11 | 珠海格力电器股份有限公司 | Ultrasonic amplitude control circuit device and ultrasonic humidifier |
-
2013
- 2013-07-04 CN CN201310280428.1A patent/CN104283545A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220745A (en) * | 1975-07-22 | 1977-02-16 | Matsushita Electric Ind Co Ltd | Oscillator for ultrasonic wave vibrator |
| CN200957394Y (en) * | 2006-09-30 | 2007-10-10 | 王剑 | Ultrasonic atomizer circuit |
| CN201885353U (en) * | 2010-11-15 | 2011-06-29 | 珠海格力电器股份有限公司 | Ultrasonic humidifier |
| CN202002249U (en) * | 2010-11-18 | 2011-10-05 | 珠海格力电器股份有限公司 | Ultrasonic humidifier with overheat self-locking protection |
| CN202238482U (en) * | 2011-09-02 | 2012-05-30 | 杨义根 | Ultrasonic atomizer |
| CN203340046U (en) * | 2013-07-04 | 2013-12-11 | 珠海格力电器股份有限公司 | Ultrasonic amplitude control circuit device and ultrasonic humidifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524373A (en) * | 2016-11-16 | 2017-03-22 | 广州奥迪威传感应用科技有限公司 | Humidifying method and device and aroma humidifier |
| CN106524373B (en) * | 2016-11-16 | 2022-04-01 | 广州奥迪威传感应用科技有限公司 | Humidifying method, humidifying device and aromatherapy machine |
| CN110057061A (en) * | 2018-09-05 | 2019-07-26 | 佛山市顺德区德尔玛电器有限公司 | A kind of humidifier atomization PID control system and method |
| CN110057061B (en) * | 2018-09-05 | 2021-08-17 | 广东德尔玛科技股份有限公司 | Humidifier atomizing PID control system |
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Application publication date: 20150114 |