CN2653891Y - Ultrasonic wave mouse expulsion device - Google Patents
Ultrasonic wave mouse expulsion device Download PDFInfo
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- CN2653891Y CN2653891Y CNU2003201205735U CN200320120573U CN2653891Y CN 2653891 Y CN2653891 Y CN 2653891Y CN U2003201205735 U CNU2003201205735 U CN U2003201205735U CN 200320120573 U CN200320120573 U CN 200320120573U CN 2653891 Y CN2653891 Y CN 2653891Y
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Abstract
The utility model relates to an ultrasonic mouse removing device. The utility model improves the prior ultrasonic mouse removing device and is provided with a circuit which is able to produce hifi cat mew; the utility model is also provided with a timing circuit to spring the circuit in time to make the circuit work; the utility model utilizes the cat mew which is the natural enemy of the mouse to cover the whole prevention and cure space; the utility model overcomes the poor mouse removing effect of the blind ultrasonic area by the piling up and complement of the ultrasonic and the hifi cat mew; and therefore the utility model enhances the mouse removing capability.
Description
(1) technical field:
The utility model relates to a kind of ultrasonic rat repellent.
(2) background technology:
The ultrasonic rat repellent of prior art is a kind of rat destruction instrument of comparatively environmental protection, it is by housing, comprise power circuit, the triangle ramp generator, supersonic generator is at compositions such as interior circuit and ultrasonic acoustical generators, its principle is: the triangle ramp generator produces the triangle oblique wave and the ultrasonic pulse that supersonic generator produced is modulated, thereby obtain the pulse of 20～60KHZ high-frequency electronic, promote the ultrasonic acoustical generator, send the composite ultraphonic ripple of variable-frequency scanning, compressing mouse nervous centralis, cause the strong reflection reaction of auditory system, it can't be stood, feel panic and uneasy, and flee the scene, thereby reach the purpose of rat destruction.Its weak point is, because ultrasonic can not penetrate barrier, and high directivity, decay characteristic such as fast are arranged, so, deploy troops on garrison duty in the space that object is arranged, always have some ultrasonic dead angles, or ultrasonic is through after reflection for several times, reflecting, arrive a certain when zone energy and decay, do not reach the purpose of driving away mouse.So repellent effect is not good.
(3) summary of the invention:
The utility model is intended to overcome above-mentioned weak point, provides a kind of repellent effect better ultrasonic rat repellent.
Invention thinking of the present utility model is:
Also comprise formations such as voice mewing IC circuit and timing trigger circuit in the utility model ultrasonic rat repellent, the one voice mewing IC chip of record the mew of high-fidelity is arranged in the described voice mewing IC circuit, foregoing circuit is powered by the power circuit in the former ultrasonic rat repellent, the audio signal that it produces is sent the high-fidelity mew by Low frequency horn with after high frequency is handled low frequency signal by the ultrasonic acoustical generator in the former ultrasonic rat repellent, also include one in the utility model ultrasonic rat repellent and switch circuit, be used to switch the output of voice mewing IC audio signal and ultrasonic signal.Utilize the yaup of the natural enemy cat of mouse, cover whole control space, by ultrasonic and superposition and complementation the high-fidelity mew, it is not good to have overcome in the ultrasonic blind area repellent effect, thereby has strengthened the ability of rat destruction greatly.
Technical solution of the present utility model is as follows:
A kind of ultrasonic rat repellent, by housing, be loaded on the circuit that comprises power circuit, triangle ramp generator, supersonic generator in the housing and ultrasonic acoustical generator etc. and form,
Described power circuit obtains the galvanic current source with external AC power supply through transformer step-down and current rectifying and wave filtering circuit rectification, filtering and through voltage stabilizing,
Described triangle ramp generator produces the triangle oblique wave and the ultrasonic pulse that supersonic generator produced is modulated, thereby obtains the pulse of 20-60KHZ high-frequency electronic, promotes the ultrasonic acoustical generator, sends the composite ultraphonic ripple of variable-frequency scanning,
It is characterized in that:
Be loaded in the circuit in the housing and also include a Low frequency horn and formations such as a voice mewing IC circuit and timing trigger circuit, one speech chip of record the high-fidelity mew is arranged in the described voice mewing IC circuit, foregoing circuit obtains power supply by power circuit, and its timing trigger circuit produces a signal of telecommunication and triggers speech chip generation audio signal and send the high-fidelity mew by the Low frequency horn that links to each other with this circuit.
Further scheme is: also include one and switch circuit in the described circuit that is loaded in the housing, it controls the ultrasonic pulsative signal that audio signal is exported and supersonic generator the produced output that voice mewing IC circuit is produced simultaneously respectively.
Another improvement project is: the audio signal that described voice mewing IC circuit produces output to Low frequency horn that this circuit links to each other in after the high frequency processing, output to the ultrasonic acoustical generator and send the high-fidelity mew.
More specifically say, in the above-mentioned voice mewing IC circuit,
Described timing trigger circuit is by 555 time base circuit IC3, resistance R 10～11, capacitor C 11 is formed, wherein, 4 of IC3,8 pin insert power supply V+, 1 pin ground connection, 5 pin are vacant, 7 pin insert power supply V+ through R11,2,6 pin link to each other with 7 pin through R10, it inserts on the positive pole of other end ground capacity C11 simultaneously, 3 pin connect the base stage of triode Q1 by R12, the grounded emitter of triode Q2, and its colelctor electrode inserts voice mewing IC4 chips by capacitor C 13, simultaneously by R2 ground connection, at this moment, IC3, resistance R 10～11, capacitor C 11 is formed commutator pulses and is formed loops, thus 3 pin of the IC3 output certain width and the time interval positive pulse, after oppositely amplifying, triode Q1 is negative pulse, by resistance R 2, capacitor C 13 produces a triggering signal for voice mewing IC4 chip;
Record the mew of high-fidelity in the described mewing IC4 speech chip, after obtaining the triggering signal that produces by capacitor C 13, export an audio signal.
The scheme in a step is again:
Described automatic switch-over circuit is made up of sustained diode 1, relay K A, relay switch KA-1, relay switch KA-1, wherein, sustained diode 1 and relay K A back one end that is in parallel is connected with 4,8 pin of power supply V+ and IC3, and the other end is connected with the colelctor electrode of capacitor C 13 and triode Q1;
When timing trigger circuit is worked, relay switch KA-2 adhesive, the audio signal that voice mewing IC4 chip produces outputs to Low frequency horn and ultrasonic acoustical generator, at this moment, relay switch KA-2 is in off-state, and the ultrasonic that 3 pin of IC2 produce can not be exported;
When timing trigger circuit quit work, relay switch KA-2 disconnected, and relay switch KA-2 adhesive is sent supersonic beam thereby the ultrasonic that 3 pin of IC2 produce outputs to the ultrasonic acoustical generator.
Accompanying drawing 1 is a schematic block circuit diagram of the present utility model.
Referring to theory diagram,
External AC power supply obtains galvanic current source V+ through the rectifying and wave-filtering voltage stabilizing.
555 time base circuit IC1 produce the triangle ramp signal, the ultrasonic high-frequency impulse that 555 time base circuit IC2 are produced scans modulation, the 3 pin output continually varying 20KHz～60KHz frequency that makes IC2 is from small to large high frequency ultrasound pulse more from big to small, through automatic switch-over circuit, promote the ultrasonic acoustical generator and send the ultrasonic of variable frequency in the space towards periphery, the duration that modulation period, (duration) that is ultrasonic frequency changed is regulated by potentiometer RP.
Timing circuit IC3 sends commutator pulse, triggers voice mewing IC circuit and produces voice signal, through automatic switch-over circuit, sends the high-fidelity mew by low frequency sound pronunciation device and ultrasonic acoustical generator.
Automatic switch-over circuit is used to switch ultrasonic signal and voice signal outputs to acoustical generator.
Figure 2 shows that circuit diagram of the present utility model.
Accompanying drawing 3 is depicted as the oscillogram of the relevant each point in the circuit of the present utility model.
Below circuit of the present utility model is done more detailed explanation.
External AC power supply offers down column circuits through transformer T1 transformation and through bridge rectifier D3 rectification, C9, C10 filtering acquisition galvanic current source V+.
The triangle sawtooth waveforms forms circuit by 555 time base circuit IC1, capacitor C 1 resistance R 3, potentiometer RP forms, wherein, 4 of IC1,8 pin insert power supply V+, 1 pin ground connection, 5,7 bipods are vacant, 3 pin are through RP, R3 inserts the anodal of electrochemical capacitor C1 and 2,6 pin, the base stage of triode Q2, when 3 pin of IC1 are exported high level, pass through RP, R3 is to capacitor C 1 charging, and when the C1 both end voltage was charged to 2/3V+, the upset of the 3 pin level of IC1 was low level, pass through R3 again, RP discharges to C1, when the C1 both end voltage was put into 1/3V+, 3 pin of IC1 output upset again moved in circles like this for high level, produce triangle sawtooth waveforms Vt at the two ends of capacitor C 1, its cycle is T=0.693*2* (R3+RP) * C1, also is the triangle sawtooth waveforms modulating wave cycle (duration), and its waveform is referring to the waveform b in the accompanying drawing 3.Adjusting RP can change this triangle sawtooth waveforms and modulate wave period (duration).
The base stage of triode Q3 is by 3 pin of resistance R 4 access IC1, and its colelctor electrode promotes the variation of D2 light emitting diode indication modulation period (duration) by R5.
The emitter stage of triode Q2 connects 5 pin by resistance R 1 and 555 time base circuit IC2, here, resistance R 1 triode Q2 forms follower, and the triangle sawtooth waveforms modulating wave that the C1 two ends are produced is transferred to 555 time base circuit IC2, modulates with the high-frequency impulse that IC2 is formed.
20KHz～60KHz frequency ultrasonic wave generator is by 555 time base circuit IC2, resistance R 6,7, capacitor C 3 is formed, wherein, 4,8 pin of IC2 insert power supply V+, 1 pin ground connection, and 5 bipods connect the emitter stage of triode Q2,7 pin insert power supply V+ through R6,2,6 pin insert capacitor C 3 and insert power supply V+ through R7, R6, the base stage of triode Q2, and 3 pin are by relay K A output supersonic range high-frequency impulse.Resistance R 6,7, capacitor C 3 is formed high frequency oscillation circuit, control power supply V+ is through resistance R 6,7 pairs of capacitor C 3 chargings, when the C3 both end voltage is charged to Vt, the 3 pin level upset of IC2 is low level, 7 pin of IC2 are again by 7 pairs of C3 discharges of resistance R, when C3 both end voltage VC is put into (1/2Vt+1/3V+), the 3 pin output of IC2 upset again is high level, move in circles like this, 3 pin output supersonic range high-frequency impulse VO at IC2, because Vt is the triangle sawtooth waveforms that level changes, its oscillogram is seen the c of waveform shown in Fig. 3, so (20KHZ～60KHZ) is a continually varying high-frequency ultrasonic from big to small more from small to large to the frequency of the high-frequency impulse VO of 3 pin of IC2 output, and its oscillogram is seen a of waveform shown in Fig. 3.
Need high-frequency ultrasonic for testing because people's ear can not be felt, capacitor C 2 is in parallel by switch S 1 and capacitor C 3.After pressing testing button S1, capacitance increases, and supersonic range high-frequency impulse VO frequency reduces, and people's ear just can have been heard sound effect that it sends by acoustical generator.
Timing circuit is made up of 555 time base circuit IC3, resistance R 10～11, capacitor C 11, wherein, 4,8 pin of IC3 insert power supply V+, 1 pin ground connection, 5 pin are vacant, 7 pin insert power supply V+ through R11, and 2,6 pin link to each other with 7 pin through R10, and it inserts on the positive pole of other end ground capacity C11 simultaneously, 3 pin connect the base stage of triode Q1 by R12, the grounded emitter of triode Q2, its colelctor electrode inserts voice mewing IC4 circuit by capacitor C 13, simultaneously by R2 ground connection.IC3, resistance R 10～11, capacitor C 11 are formed commutator pulse and are formed the loop, 11 chargings of 11 pairs of capacitor C of resistance R, R10 is to capacitor C 11 discharges, thereby 3 pin of the IC3 output certain width and the positive pulse in the time interval, after triode Q1 oppositely amplifies, be negative pulse, produce a triggering signal for voice mewing IC4 circuit by resistance R 2, capacitor C 13.
Record the mew of high-fidelity in the mewing IC4 speech chip, after obtaining the triggering signal that produces by capacitor C 13, export a Hi-Fi audio signal through relay switch KA-2.
Comprise 3 acoustical generators in the circuit of the present utility model.Low frequency sound pronunciation device obtains the Hi-Fi audio signal pronunciation by mewing IC4 sound circuit, promotes Low frequency horn and high-frequency horn and sends the high-fidelity mewing.High frequency ultrasound wave impulse by the output of 3 pin of IC2, through relay switch KA-1, again respectively through C6 meet ultrasonic acoustical generator WUC1, the power amplifier formed through C5, by R8, triode Q4 meets ultrasonic acoustical generator WUC2 and sends the high-decibel supersonic beam, obtain Hi-Fi audio signal also by relay switch KA-2 by mewing IC4 sound circuit, respectively through C7, connect ultrasonic acoustical generator WUC1 pronunciation, meet ultrasonic acoustical generator WUC2 through C8, the amplifier formed by R8, triode Q4.
The utility model is by the improvement to existing ultrasonic rat repellent, install additional one can send the high-fidelity mew circuit and by one regularly circuit regularly trigger and make it the work sounding, utilize the yaup of the natural enemy cat of mouse, cover whole control space, by ultrasonic and superposition and complementation the high-fidelity mew, it is not good to have overcome in the ultrasonic blind area repellent effect, thereby has strengthened the ability of rat destruction greatly, can be rated as the jinx of mouse.
In the utility model, the low frequency voice signal that mewing IC sound circuit produces is sent by the ultrasonic acoustical generator after high frequency is handled, and has improved the fidelity of tonequality.Repellent effect is better.
The utility model environmentally safe, ultrasonic frequency be at 20～60KHZ, not in the audibility range of the mankind, dog, cat, bird, can interfering TV, radio, computer and other electronic instrument yet, and as audiphone, room, garage remote controller etc.Use cost is low, the automaticity height.
(4) description of drawings:
Accompanying drawing 1 is a theory diagram of the present utility model
Accompanying drawing 2 is the circuit diagram of the utility model embodiment
Accompanying drawing 3 is the oscillogram of relevant each point among the utility model embodiment
(5) embodiment:
Referring to accompanying drawing, the utility model embodiment is made up of housing, the circuit that comprises power circuit, triangle ramp generator, supersonic generator and ultrasonic acoustical generator etc.,
Described power circuit is made up of transformer T1, bridge rectifier D3, C9, C10, and external AC power supply is through transformer T1 transformation and through bridge rectifier D3 rectification, C9, C10 filtering acquisition+15V DC voltage.
Above-mentioned power circuit obtains+and thereby the 15V DC voltage inserts 7812 voltage-stablizers and obtains more stable+12V DC voltage.
Described triangle ramp generator is made up of 555 time base circuit IC1, capacitor C 1 resistance R 3, potentiometer RP, wherein, 4,8 pin of IC1 insert power supply V+, 1 pin ground connection, 5,7 bipods are vacant, 3 pin insert anodal and 2,6 pin of electrochemical capacitor C1, the base stage of triode Q2 through RP, R3, produce triangle sawtooth waveforms Vt at the two ends of capacitor C 1.Adjusting RP can change this triangle sawtooth waveforms and modulate wave period.
The base stage of triode Q3 is by 3 pin of resistance R 4 access IC1, and its colelctor electrode promotes the D2 light emitting diode indication variation of modulation period by R5.
The emitter stage of triode Q2 connects 5 pin by resistance R 1 and 555 time base circuit IC2, here, resistance R 1 triode Q2 forms follower, and the triangle sawtooth waveforms modulating wave that the C1 two ends are produced is transferred to 555 time base circuit IC2, modulates with the high-frequency impulse that IC2 is formed.
20KHz～60KHz frequency ultrasonic wave generator is by 555 time base circuit IC2, resistance R 6,7, capacitor C 3 is formed, wherein, 4,8 pin of IC2 insert power supply V+, 1 pin ground connection, and 5 bipods connect the emitter stage of triode Q2,7 pin insert power supply V+ through R6,2,6 pin insert capacitor C 3 and insert power supply V+ through R7, R6, the base stage of triode Q2, the 3 pin output high-frequency ultrasonic of IC2.
Capacitor C 2 is in parallel by switch S 1 and capacitor C 3, is used for test.When the button of pressing switch S 1, capacitor C 2 is in parallel with capacitor C 3, and the ultrasonic frequency of the 3 pin output of IC2 reduces, and can be the sound effect of people's ear sensation after ultrasonic acoustical generator WUC1, WUC2 just can send frequency conversion.
Timing circuit is made up of 555 time base circuit IC3, resistance R 10～11, capacitor C 11, wherein, 4,8 pin of IC3 insert power supply V+, 1 pin ground connection, 5 pin are vacant, 7 pin insert power supply V+ through R11, and 2,6 pin link to each other with 7 pin through R10, and it inserts on the positive pole of other end ground capacity C11 simultaneously, 3 pin connect the base stage of triode Q1 by R12, the grounded emitter of triode Q2, its colelctor electrode inserts voice mewing IC4 circuit by capacitor C 13, simultaneously by R2 ground connection.IC3, resistance R 10～11, capacitor C 11 are formed commutator pulse and are formed the loop, 11 chargings of 11 pairs of capacitor C of resistance R, R10 is to capacitor C 11 discharges, here the effect of D4, D5 is anti-tampering, thereby 3 pin of IC3 are exported wide 4 seconds 15 minutes positive pulses at interval, after triode Q1 oppositely amplifies, be negative pulse, produce a triggering signal for voice mewing IC4 circuit by resistance R 2, capacitor C 13.
Record the mew of high-fidelity in the mewing IC4 speech chip, after obtaining the triggering signal that produces by capacitor C 13, export a Hi-Fi audio signal through relay switch KA-2.
Comprise 3 acoustical generators in the circuit of the present utility model.Low frequency sound pronunciation device obtains the Hi-Fi audio signal pronunciation by mewing IC4 sound circuit, promotes Low frequency horn and high-frequency horn and sends the high-fidelity mewing.High frequency ultrasound wave impulse by the output of 3 pin of IC2, through relay switch KA-1, again respectively through C6 meet ultrasonic acoustical generator WUC1, the power amplifier formed through C5, by R8, triode Q4 meets ultrasonic acoustical generator WUC2 and sends the high-decibel supersonic beam, obtain Hi-Fi audio signal also by relay switch KA-2 by mewing IC sound circuit, respectively through C7, connect ultrasonic acoustical generator WUC1 pronunciation, meet ultrasonic acoustical generator WUC2 through C8, the amplifier formed by R8, triode Q4.
Automatic switch-over circuit is made up of sustained diode 1, relay K A, relay switch KA-1, relay switch KA-1, wherein, sustained diode 1 and relay K A back one end that is in parallel is connected with 4,8 pin of power supply V+ and IC3, and the other end is connected with the colelctor electrode of capacitor C 13 and triode Q1.When voice mewing IC4 circuit working, relay switch KA-2 adhesive, the audio signal that voice mewing IC4 circuit produces outputs to Low frequency horn and ultrasonic acoustical generator WUC1, WUC2, at this moment, relay switch KA-2 is in off-state, and the ultrasonic that 3 pin of IC2 produce can not be exported; When voice mewing IC4 circuit quit work, relay switch KA-2 disconnected, and relay switch KA-2 adhesive is sent supersonic beam thereby the ultrasonic that 3 pin of IC2 produce outputs to ultrasonic acoustical generator WUC1, WUC2.
Using method: insert civil power, relay indicating light will shinny and flicker, and the speed in adjusting knob controlled ultrasonic scanning cycle, as wonder the sentient effect of people's ear presses the button and just can hear sound effect that frequency conversion is later.Open voice switch, can hear 4 seconds mews, later every interval 15 minutes, mewing automatically.As environmental limitations, but also temporary close voice.
Certainly, under inventive concept of the present utility model, the utility model has multiple form of implementation, as the timing trigger circuit in the embodiment circuit various ways can be arranged.Be not limited to above-mentioned concrete structure, just do not described in detail one by one at this.Simultaneously, it is pointed out that at this mewing IC4 speech chip, 555 time base circuit IC3 etc. are known technology in present embodiment, as using the IC speech chip in the sound broadcast device on the bus, its concrete structure all belongs to those skilled in the art should know technology, does not just give unnecessary details one by one at this.
Innovation part of the present utility model is embodied in: 1, existing ultrasonic rat repellent is improved, with install additional one can send the high-fidelity mew circuit and by one regularly circuit regularly trigger and make it the work sounding, by ultrasonic and superposition and complementation the high-fidelity mew, strengthened the ability of rat destruction.2, by technological means such as employing automatic switch-over circuits, make ultrasonic and the automatic switchover of high-fidelity mew, whole plant automation degree height, it is on duty to need not the people.When 3, the audio signal that mewing IC4 speech chip is produced is delivered to Low frequency horn, send, improved the fidelity of tonequality greatly, thereby repellent effect is better by high frequency treatment reason ultrasonic acoustical generator WUC1, WUC2.
Claims (6)
1, a kind of ultrasonic rat repellent, by housing, be loaded on the circuit that comprises power circuit, triangle ramp generator, supersonic generator in the housing and ultrasonic acoustical generator etc. and form,
Described power circuit obtains the galvanic current source with external AC power supply through transformer step-down and current rectifying and wave filtering circuit rectification, filtering and through voltage stabilizing,
Described triangle ramp generator produces the triangle oblique wave and the ultrasonic pulse that supersonic generator produced is modulated, thereby obtains the pulse of 20～60KHZ high-frequency electronic, promotes the ultrasonic acoustical generator, sends the composite ultraphonic ripple of variable-frequency scanning,
It is characterized in that:
Be loaded in the circuit in the housing and also include a Low frequency horn, include a voice mewing IC circuit of record the speech chip of high-fidelity mew, the timing trigger circuit of control voice mewing IC circuit working etc., described voice mewing IC circuit obtains power supply by above-mentioned power circuit, and its timing trigger circuit produces a signal of telecommunication and triggers speech chip generation audio signal and send the high-fidelity mew by the Low frequency horn that links to each other with this circuit.
2, ultrasonic rat repellent according to claim 1, it is characterized in that: also include one and switch circuit in the described circuit that is loaded in the housing, it controls the ultrasonic pulsative signal that audio signal is exported and supersonic generator the produced output that voice mewing IC circuit is produced simultaneously respectively.
3, ultrasonic rat repellent according to claim 1 is characterized in that: the audio signal that described voice mewing IC circuit produces output to Low frequency horn that this circuit links to each other in after the high frequency processing, output to the ultrasonic acoustical generator and send the high-fidelity mew.
4, ultrasonic rat repellent according to claim 1 is characterized in that:
Described timing trigger circuit is by 555 time base circuit IC3, resistance R 10～11, capacitor C 11 is formed, wherein, 4 of IC3,8 pin insert power supply V+, 1 pin ground connection, 5 pin are vacant, 7 pin insert power supply V+ through R11,2,6 pin link to each other with 7 pin through R10, it inserts on the positive pole of other end ground capacity C11 simultaneously, 3 pin connect the base stage of triode Q1 by R12, the grounded emitter of triode Q2, and its colelctor electrode inserts voice mewing IC4 chips by capacitor C 13, simultaneously by R2 ground connection, at this moment, IC3, resistance R 10～11, capacitor C 11 is formed commutator pulses and is formed loops, thus 3 pin of the IC3 output certain width and the time interval positive pulse, after oppositely amplifying, triode Q1 is negative pulse, by resistance R 2, capacitor C 13 produces a triggering signal for voice mewing IC4 chip;
Record the mew of high-fidelity in the described mewing IC4 speech chip, after obtaining the triggering signal that produces by capacitor C 13, export an audio signal.
5, ultrasonic rat repellent according to claim 4 is characterized in that:
Described automatic switch-over circuit is made up of sustained diode 1, relay K A, relay switch KA-1, relay switch KA-1, wherein, sustained diode 1 and relay K A back one end that is in parallel is connected with 4,8 pin of power supply V+ and IC3, and the other end is connected with the colelctor electrode of capacitor C 13 and triode Q1;
When timing trigger circuit is worked, relay switch KA-2 adhesive, the audio signal that voice mewing IC4 chip produces outputs to Low frequency horn and ultrasonic acoustical generator, at this moment, relay switch KA-2 is in off-state, and the ultrasonic that 3 pin of IC2 produce can not be exported;
When timing trigger circuit quit work, relay switch KA-2 disconnected, and relay switch KA-2 adhesive is sent supersonic beam thereby the ultrasonic that 3 pin of IC2 produce outputs to the ultrasonic acoustical generator.
6, ultrasonic rat repellent according to claim 4, it is characterized in that: the audio signal that described voice mewing IC circuit produces output to Low frequency horn that this circuit links to each other in meet ultrasonic acoustical generator WUC1 through C7, the amplifier of forming through C8, by R8, triode Q4 meets ultrasonic acoustical generator WUC2 and sends the high-fidelity mew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201205735U CN2653891Y (en) | 2003-11-06 | 2003-11-06 | Ultrasonic wave mouse expulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201205735U CN2653891Y (en) | 2003-11-06 | 2003-11-06 | Ultrasonic wave mouse expulsion device |
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| CN2653891Y true CN2653891Y (en) | 2004-11-10 |
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| CNU2003201205735U Expired - Fee Related CN2653891Y (en) | 2003-11-06 | 2003-11-06 | Ultrasonic wave mouse expulsion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379276A (en) * | 2011-07-28 | 2012-03-21 | 刘昭利 | Meow-simulated rat-repelling device |
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2003
- 2003-11-06 CN CNU2003201205735U patent/CN2653891Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379276A (en) * | 2011-07-28 | 2012-03-21 | 刘昭利 | Meow-simulated rat-repelling device |
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