CN107258761A - A kind of sound wave device for expelling mosquitos - Google Patents
A kind of sound wave device for expelling mosquitos Download PDFInfo
- Publication number
- CN107258761A CN107258761A CN201710584012.7A CN201710584012A CN107258761A CN 107258761 A CN107258761 A CN 107258761A CN 201710584012 A CN201710584012 A CN 201710584012A CN 107258761 A CN107258761 A CN 107258761A
- Authority
- CN
- China
- Prior art keywords
- sound wave
- interface
- piezoelectricity
- tweeter
- multivibrator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241000256113 Culicidae Species 0.000 title claims abstract description 12
- 241000255925 Diptera Species 0.000 abstract description 11
- 239000000077 insect repellent Substances 0.000 abstract description 5
- 230000002045 lasting effect Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention discloses a kind of sound wave device for expelling mosquitos, including body, the body is provided with piezoelectricity tweeter and the sound wave generation circuit for driving the loudspeaker, and the sound wave generation circuit is utilized：First multivibrator exports 230Hz vibration wave, second multivibrator exports 5Hz control signal ripple, control signal ripple is caused between the input interface of analog switch and output interface with 5Hz frequency break-make by the gating interface of analog switch, so that 230Hz vibration wave drives piezoelectricity tweeter with 5Hz frequencies, so that piezoelectricity tweeter sends lasting 0.2s 230Hz sound waves every 0.2s, because people is not so good as mosquito to the sensitivity of sound, this desultory sound wave can not cause the sense of hearing of people, but the attention of mosquito can be caused, so as to not produce noise pollution while mosquito repellent is ensured.
Description
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of sound wave device for expelling mosquitos.
Background technology
Current being mainly using sound wave come the scheme of mosquito repellent drives female mosquito using the sensitive sound wave of female mosquito is 230Hz
Son, sends 230Hz sound wave to drive mosquito using loudspeaker, but is due to the 230Hz sound that can recognize of sound wave behaviour ear
Audio frequency range, therefore, noise pollution is often caused using sound wave mosquito repelling function, influences the normal life of people.
So while using sound wave mosquito repelling function effect very well, but the few can use this scheme.
The content of the invention
In order to solve the above problems, the invention provides a kind of sound wave device for expelling mosquitos, the sound wave device for expelling mosquitos is ensureing mosquito repellent effect
Noise pollution is not resulted in while fruit, the normal life of people is influenceed.
The present invention solve its technical problem solution be：Set on a kind of sound wave device for expelling mosquitos, including body, the body
There are piezoelectricity tweeter and the sound wave generation circuit for driving the loudspeaker, the sound wave generation circuit includes：Output
The first multivibrator, analog switch, the second multivibrator for exporting 5Hz control signal ripples, the mould of 230Hz vibration waves
Intend switch and be provided with input interface, output interface, the choosing for controlling the input interface to connect or disconnect with the output interface
Mouth is connected, the output end of first multivibrator is connected with the input interface, the output interface is high with the piezoelectricity
Band loudspeaker is connected, and the output end of second multivibrator is connected with the gating interface.
Further, first, second multivibrator includes NE555 timers.
Further, the analog switch is CD4051 chips.
The beneficial effects of the invention are as follows：First multivibrator exports 230Hz vibration wave, the output of the second multivibrator
5Hz control signal ripple, control signal ripple causes input interface and the output of analog switch by the gating interface of analog switch
With 5Hz frequency break-make between interface, so that 230Hz vibration wave drives piezoelectricity tweeter with 5Hz frequencies, make
The 230Hz sound waves that piezoelectricity tweeter sends lasting 0.2s every 0.2s are obtained, because people is not so good as mosquito to the sensitivity of sound,
This desultory sound wave can not cause the sense of hearing of people, but can cause the attention of mosquito, so as to ensure mosquito repellent
Do not produce noise pollution simultaneously.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than is all implemented
Example, those skilled in the art on the premise of not paying creative work, can also obtain other designs according to these accompanying drawings
Scheme and accompanying drawing.
Fig. 1 is the circuit connection diagram of sound wave generation circuit.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing clear
Chu, it is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of embodiment, rather than whole embodiments, based on embodiments of the invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/annexations, not singly refer to component and directly connect, and refer to be added deduct by adding according to specific implementation situation
Few couple auxiliary, to constitute more excellent draw bail.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
Embodiment 1, with reference to Fig. 1, a kind of sound wave device for expelling mosquitos, including body, the body is provided with piezoelectricity tweeter
A4 and the sound wave generation circuit for driving the loudspeaker, the sound wave generation circuit include：Export the first of 230Hz vibration waves
Multivibrator a1, analog switch a3, the second multivibrator a2 for exporting 5Hz control signal ripples, first multi-harmonic-oscillations
Device a1 includes the first NE555 timers U4, first resistor R1, second resistance R2, the first electric capacity C1, the second resistance R2, the
One resistance R1, the first electric capacity C1 connect, the 7th pin and the first resistor R1 and second of the first NE555 timers U4
Node connection between resistance R2, the second pin of the first NE555 timers U4, the 6th pin with the first resistor
Node connection between R1 and the first electric capacity C1, by adjusting first, second resistance R1, R2, the first electric capacity C1 parameter value, makes
The resistance for obtaining first resistor R1 in the first NE555 timers U4 output end output 230Hz vibration wave, the present embodiment is 3000
Ω, second resistance R2 resistance are 220 Ω, and the first electric capacity C1 capacitance is 1uf, it is hereby achieved that 230Hz vibration wave.
Similarly, the second multivibrator a2 includes：2nd NE555 timers U5,3rd resistor R3, the 4th resistance R4,
Two electric capacity C2, the 4th resistance R4,3rd resistor R3, the second electric capacity C2 series connection, the 7th of the 2nd NE555 timers U5 the
Node connection between pin and the 4th resistance R4 and 3rd resistor R3, the second of the 2nd NE555 timers U5 draws
The node of pin, the 6th pin between the 3rd resistor R3 and the second electric capacity C2 is connected, and passes through adjustment the 4th, 3rd resistor
R4, R3, the second electric capacity C2 parameter value so that the 2nd NE555 timers U5 output end exports 5Hz control signal ripple, this
3rd resistor R3 resistance is that 1M Ω, the 4th resistance R4 resistance are 86K Ω in embodiment, and the second electric capacity C2 capacitance is
1uf, it is hereby achieved that 5Hz control signal ripple.
The analog switch a3 is provided with input interface E, output interface F, for controlling the input interface and the output
Orifice or the gating interface G of disconnection, the output end of the first multivibrator a1 pass through coupled capacitor and the input
Interface E connections, the output interface F is connected by push-pull circuit with the piezoelectricity tweeter a4, second multi-resonant
The output end for swinging device a2 is connected by coupled capacitor with the gating interface G.
The sound wave device for expelling mosquitos of the structure is utilized：First multivibrator a1 exports 230Hz vibration wave, the second multi-harmonic-oscillations
Device a2 exports 5Hz control signal ripple, and control signal ripple causes the input of analog switch by analog switch a3 gating interface G
With 5Hz frequency break-make between interface E and output interface F, so that 230Hz vibration wave is recommended with 5Hz frequencies to drive
Circuit so that piezoelectricity tweeter a4 sends lasting 0.2s 230Hz sound waves, the sensitivity due to people to sound every 0.2s
Not as mosquito, this desultory sound wave can not cause the sense of hearing of people, but can cause the attention of mosquito, so as to protect
Noise pollution is not produced while card mosquito repellent.
As optimization, the analog switch a3 is CD4051 chips.CD4051 chips have low conduction impedance and very low
Cut-off leakage current.With good passband characteristic, the wave distortion in switching process can be prevented.
The better embodiment to the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent modifications or replace on the premise of without prejudice to spirit of the invention
Change, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (3)
1. a kind of sound wave device for expelling mosquitos, including body, it is characterised in that：The body is provided with piezoelectricity tweeter and for driving
The sound wave generation circuit of the loudspeaker is moved, the sound wave generation circuit includes：Export the first multi-harmonic-oscillations of 230Hz vibration waves
Device, analog switch, the second multivibrator for exporting 5Hz control signal ripples, the analog switch connect provided with input interface, output
Mouth, the gating interface for controlling the input interface to connect or disconnect with the output interface, first multivibrator
Output end be connected with the input interface, the output interface is connected with the piezoelectricity tweeter, second multi resonant
The output end of oscillator is connected with the gating interface.
2. a kind of sound wave device for expelling mosquitos according to claim 1, it is characterised in that：First, second multivibrator is equal
Including NE555 timers.
3. according to a kind of sound wave device for expelling mosquitos described in claim 1, it is characterised in that：The analog switch is CD4051 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584012.7A CN107258761B (en) | 2017-07-18 | 2017-07-18 | Acoustic wave mosquito dispeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584012.7A CN107258761B (en) | 2017-07-18 | 2017-07-18 | Acoustic wave mosquito dispeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107258761A true CN107258761A (en) | 2017-10-20 |
| CN107258761B CN107258761B (en) | 2023-10-31 |
Family
ID=60077718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710584012.7A Active CN107258761B (en) | 2017-07-18 | 2017-07-18 | Acoustic wave mosquito dispeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107258761B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2338647A1 (en) * | 1976-01-22 | 1977-08-19 | Anselme Gilbert | Electronic insect and animal repellent - has HF and LF oscillators with frequency ranges regulated by capacitors and potentiometer |
| WO2013132230A1 (en) * | 2012-03-08 | 2013-09-12 | Killgerm Group Limited | Insect disablement device and method |
| JP2015112098A (en) * | 2013-12-16 | 2015-06-22 | 公立大学法人県立広島大学 | Vermin threatening apparatus and vermin threatening system |
| CN207040655U (en) * | 2017-07-18 | 2018-02-27 | 佛山科学技术学院 | A kind of sound wave device for expelling mosquitos |
-
2017
- 2017-07-18 CN CN201710584012.7A patent/CN107258761B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2338647A1 (en) * | 1976-01-22 | 1977-08-19 | Anselme Gilbert | Electronic insect and animal repellent - has HF and LF oscillators with frequency ranges regulated by capacitors and potentiometer |
| WO2013132230A1 (en) * | 2012-03-08 | 2013-09-12 | Killgerm Group Limited | Insect disablement device and method |
| JP2015112098A (en) * | 2013-12-16 | 2015-06-22 | 公立大学法人県立広島大学 | Vermin threatening apparatus and vermin threatening system |
| CN207040655U (en) * | 2017-07-18 | 2018-02-27 | 佛山科学技术学院 | A kind of sound wave device for expelling mosquitos |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107258761B (en) | 2023-10-31 |
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