CN1061883A - Electronic mosquito repellent - Google Patents
Electronic mosquito repellent Download PDFInfo
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- CN1061883A CN1061883A CN 91107527 CN91107527A CN1061883A CN 1061883 A CN1061883 A CN 1061883A CN 91107527 CN91107527 CN 91107527 CN 91107527 A CN91107527 A CN 91107527A CN 1061883 A CN1061883 A CN 1061883A
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- ultrasonic
- electronic mosquito
- mosquito repellent
- acoustical generator
- emission
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Abstract
Electronic mosquito repellent of the present invention comprises ultrasonic oscillator, power amplifier and acoustical generator, the identical oscillator signal of frequency that sends when the supersonic oscillations generation is preyed on bat, and after power amplifier amplifies by acoustical generator to spatial emission, because of the ultrasonic of bat predation to the generation gap, therefore electronic mosquito repellent of the present invention also comprises an occupancy controller, this controller control generator, power amplifier or acoustical generator make acoustical generator simulation bat gap emission ultrasonic.Because electronic mosquito repellent emission of the present invention is similar to the ultrasonic of pulse, thereby power supply of available low-power battery and the more powerful ultrasonic of emission, overcome the not good shortcoming of the little repelling effect of conditional electronic mosquito expelling equipment transmitting power.
Description
The present invention relates to a kind of electronic mosquito repellent, relate in particular to a kind of ultrasonic electronic mosquito repellent.
In order to overcome traditional culicifuge: mosquito-repellent incense has the shortcomings such as influence of smog and repelling effect wind-engaging when using, many electronic mosquito repellents have appearred, the consistent ultrasonic of wing vibration frequency produced resonance when the electronic mosquito repellent emission that has was flown with mosquito, destroyed the flight balance of mosquito; The electronic mosquito repellent that has is launched the ultrasonic that is produced when male mosquito flies escapes female mosquito.The said goods makes repelling effect not good because of sounding power is too little.
For overcoming above-mentioned shortcoming, the invention provides a kind of electronic mosquito repellent, it utilizes all flying insects to escape the principle of its natural enemy-bat, and it is identical that the ultrasonic that this electronic mosquito repellent is produced sends when preying on bat, thereby can reach preferable repelling effect.
Electronic mosquito repellent of the present invention comprises ultrasonic oscillator, power amplifier and acoustical generator, the identical oscillator signal of frequency that sends when the supersonic oscillations generation is preyed on bat, and after power amplifier amplifies by acoustical generator to spatial emission, because of the ultrasonic of bat predation to the generation gap, therefore electronic mosquito repellent of the present invention also comprises an occupancy controller, this controller control generator, power amplifier or acoustical generator make acoustical generator simulation bat gap emission ultrasonic.
Because electronic mosquito repellent emission of the present invention is similar to the ultrasonic of pulse, thereby power supply of available low-power battery and the more powerful ultrasonic of emission, overcome the not good shortcoming of the little repelling effect of conditional electronic mosquito expelling equipment transmitting power.
Fig. 1 is the block diagram of electronic mosquito repellent of the present invention;
Fig. 2 is the working waveform figure of electronic mosquito repellent of the present invention;
Fig. 3, be the concrete electronic-circuit diagram of electronic mosquito repellent of the present invention.
Below in conjunction with accompanying drawing, describe the present invention in detail.
Referring to Fig. 1, Fig. 1 is the block diagram of electronic mosquito repellent of the present invention.It comprises ultrasonic oscillator 1, power amplifier 2 and acoustical generator 3, produce ultrasonic signal by ultrasonic oscillator 1, its frequency is between 15KHZ to 25KHZ, amplify by 2 pairs of these signals of power amplifier then, and deliver to acoustical generator 3, outwards launch ultrasonic by acoustical generator 3, described acoustical generator 3 can be common loudspeaker or piezo-electric ceramic sounding sheet, also can be ultrasonic transducer.
For making the work of acoustical generator 3 gaps, promptly launch interrupted ultrasonic, as shown in Figure 1, electronic mosquito repellent of the present invention also comprises an occupancy controller 4, this occupancy controller 4 can be controlled the work of ultrasonic oscillator 1 gap, make it produce the signal of waveform as shown in Figure 2, this signal amplifies the back by power amplifier 2 and promotes acoustical generator 3 work.This occupancy controller 4 also can be controlled the work of power amplifier 2 gaps, like this, the continuous signal that ultrasonic oscillator 1 produces will become interrupted signal as shown in Figure 2 after the power amplifier 2 of gap work amplifies, promote acoustical generator 3 interrupted sounding by this signal.Can certainly directly control acoustical generator 3 by occupancy controller 4, make its gap work.Through measuring, above-mentioned work and gap ratio are 1: 10 to 1: 30, and its best point is 1: 15.
Referring to Fig. 3, Fig. 3 shows an embodiment who realizes Fig. 1 block diagram.As shown in Figure 3, form back-coupled generator by transistor BG1 and transformer T, and boosted by transformer T and to deliver to ultrasonic transducer CT1 after amplifying, ultrasonic transducer CT1 can equivalence become electric capacity on circuit.After the oscillator starting of oscillation, by charging to C2 after resistance R 4 and the diode D1 rectification, after the voltage on the C2 rises to certain value, by voltage-stabiliser tube D2 and resistance R 2 and capacitor C 2 phosgene brightness pipe V1 conducting in parallel, make C2 pass through resistance R 3, airglow pipe V1 and resistance R 2 discharges are in the C2 charging process, effect because of resistance R 3, FET BG2 conducting, FET BG2 provides bias current by resistance R 1 to transistor BG1, makes BG1 work, after airglow pipe V1 conducting, FET BG2 ends, transistor BG1 loses bias current, the failure of oscillations, thus work in the gap of having realized electronic mosquito repellent.
Claims (3)
1, a kind of electronic mosquito repellent comprises ultrasonic frequency oscillator, power amplifier and acoustical generator, and its feature is controlled described oscillator, power amplifier or acoustical generator also comprising an occupancy controller by this controller, makes acoustical generator gap emission ultrasonic.
2, electronic mosquito repellent as claimed in claim 1 is characterized in that described acoustical generator work and gap ratio are 1: 10 to 1: 30.
3, electronic mosquito repellent as claimed in claim 2 is characterized in that described acoustical generator work and gap ratio are 1: 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107527 CN1061883A (en) | 1991-11-09 | 1991-11-09 | Electronic mosquito repellent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107527 CN1061883A (en) | 1991-11-09 | 1991-11-09 | Electronic mosquito repellent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1061883A true CN1061883A (en) | 1992-06-17 |
Family
ID=4908864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91107527 Pending CN1061883A (en) | 1991-11-09 | 1991-11-09 | Electronic mosquito repellent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138335B (en) * | 2006-09-07 | 2012-10-03 | 深圳Tcl新技术有限公司 | Mosquito repellent television set and mosquito driving controlling method |
-
1991
- 1991-11-09 CN CN 91107527 patent/CN1061883A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138335B (en) * | 2006-09-07 | 2012-10-03 | 深圳Tcl新技术有限公司 | Mosquito repellent television set and mosquito driving controlling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication |