CN202232698U

CN202232698U - Swept-frequency ultrasonic mouse repeller adopting time base circuit 555

Info

Publication number: CN202232698U
Application number: CN201120350123XU
Authority: CN
Inventors: 韩春龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-30
Anticipated expiration: 2021-09-19

Abstract

The utility model relates to a swept-frequency ultrasonic mouse repeller adopting a time base circuit 555. The ultrasonic mouse repeller comprises a power frequency step-down transformer T, a full-bridge rectification circuit, a swept-frequency oscillator and a transduction circuit; and the swept-frequency oscillator comprises a differential circuit. Mice communicate through ultrasonic waves, have well-developed auditory systems and are very sensitive to ultrasonic waves. Ultrasonic waves produced by an electronic mouse repeller sound harsh and unbearable to mice, enable mice to feel uncomfortable in brains and want to escape desperately, cause such symptoms as inappetence, asitia and twitch or even death to mice due to fear, and eventually repel mice out of such places as homes and production and living places. Since mice in different regions react differently to ultrasonic frequency, during design, the frequency of ultrasonic waves produced by the mouse repeller is within a certain range, namely, the produced ultrasonic waves are swept-frequency ultrasonic waves and are not of certain fixed frequency, and then the mouse repelling effect is good.

Description

Sweep-frequency B ultrasonic rat repellent with time base circuit 555 making

Technical field

The utility model belongs to the application of electronic technology field, is the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 about a kind of.

Background technology

We have known that mouse links up with the ultrasonic mode, and the auditory system of muroid is very flourishing, can accurately judge the source of sound in the dark.Test shows: mouse is responsive especially to the ultrasonic of 30～40kHz, and utilizing ultrasonic rat destruction, protection against rodents or killing mouse is exactly these characteristics of utilizing mouse.It is ear-piercing hard to bear that the ultrasonic that the sweep-frequency B mouse driving device is produced can let mouse listen; Make its brains uncomfortable; Make it too impatiently want to flee the scene; Make symptoms such as it is lost the appetite lest being afraid of, apocleisis, tic, even cause its death, finally reach and mouse expelled places such as household, production, life.If force mouse to be in all the time in the ultrasonic environment, the ultra-high frequency ripple that the sounding body in the mouse driving device sends can stimulate mouse, can disturb and destroy muroid nervous system, the sense of hearing and physiological system, makes the purpose of its physiologic derangement to reach rat destruction, to kill mouse.

Rat destruction, protection against rodents, the effect of the described sweep-frequency B ultrasonic rat repellent made from time base circuit 555 of the utility model are more stable; And it is nontoxic, harmless, radiationless; The secondary pollution that can not cause to environment; 46 decibels of intensity of ultrasonic acoustic wave are lower than normal human's acceptance value, and people's ear was not both heard and human body is had no influence, can comparatively effectively solve mouse and suffer from problem.

Reaction has certain otherness to ultrasonic frequency because of different regional mouse; So when design, make mouse driving device send frequency of ultrasonic certain limit is arranged; That is: what send is the sweep-frequency B ultrasonic, rather than is fixed on some frequencies, thereby rat destruction has reasonable effect.

Below specify this sweep-frequency B ultrasonic rat repellent related relevant technologies in design, manufacturing process made from time base circuit 555.

The utility model content

Goal of the invention and beneficial effect: mouse is linked up with the ultrasonic mode, and the auditory system of muroid is very flourishing, and is very responsive to ultrasonic.Test shows: mouse is responsive especially to the ultrasonic of 30～40kHz; It is ear-piercing hard to bear that the ultrasonic that the electronic type mouse driving device is produced can let mouse listen; Make its brains uncomfortable, make it too impatiently want to flee the scene, make symptoms such as it is lost the appetite lest being afraid of, apocleisis, tic; Even cause its death, finally reach and mouse expelled places such as household, production, life.Reaction has certain otherness to ultrasonic frequency because of different regional mouse; So when design, make mouse driving device send frequency of ultrasonic certain limit is arranged; That is: what send is the sweep-frequency B ultrasonic, rather than is fixed on some frequencies, thereby rat destruction has reasonable effect.

Technical scheme: with the sweep-frequency B ultrasonic rat repellent that time base circuit 555 is made, be made up of power frequency step-down transformer T, full bridge rectifier, sweep-frequency B oscillator and transducing circuit, its characteristic comprises:

Sweep-frequency B oscillator: form by time base circuit IC1, resistance R 2, resistance R 3, capacitor C 2, capacitor C 4; The anodal VCC of 4 pin of time base circuit IC1 and 8 pin connection circuits; 5 pin of time base circuit IC1 connect an end and the differential circuit of capacitor C 2, the other end connection circuit ground GND of 1 pin of time base circuit IC1 and

capacitor C

2, and 7 pin of time base circuit IC1 link to each other with an end of an end of resistance R 2 and resistance R 3; The anodal VCC of the other end connection circuit of resistance R 2; 6 pin of time base circuit IC1 link to each other with the other end of resistance R 3 and an end of capacitor C 4 with 2 pin, the other end connection circuit ground GND of

capacitor C

4, and 3 pin of time base circuit IC1 connect the transducing circuit;

The transducing circuit: electrochemical capacitor C3 and piezo-electric ceramic sounding body HA form, and the positive pole of electrochemical capacitor C3 connects 3 pin of time base circuit IC1, and the negative pole of electrochemical capacitor C3 connects the end of piezo-electric ceramic sounding body HA, the other end connection circuit ground GND of piezo-electric ceramic sounding body HA.

The annexation that the composition of other partial circuits and element are mutual

Differential circuit: form the alternating current input b of a termination full-bridge rectification element QZ of capacitor C 1, other end connecting resistance R1 one end of capacitor C 1,5 pin of resistance R 1 another termination time base circuit IC1 by capacitor C 1 and resistance R 1.

Full bridge rectifier: form by power frequency step-down transformer T, full-bridge rectification element QZ; The two termination 220V AC powers of power frequency step-down transformer T primary coil L1; The two ends of power frequency step-down transformer T secondary coil L2 meet alternating current input a and the alternating current input b of full-bridge rectification element QZ respectively; Full-bridge rectification element QZ direct current cathode output end links to each other with circuit anode VCC, and full-bridge rectification element QZ direct current cathode output end links to each other with circuit ground GND.

The circuit working principle: the circuit of the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 comprises step-down rectifying circuit, sweep-frequency B oscillator, and the sweep-frequency B oscillator is made up of time base circuit IC1, resistance R 2, resistance R 3, capacitor C 2 and capacitor C 4 etc.

Scan frequency obtains from the end of the secondary coil L2 of Industrial Frequency Transformer T; Differential circuit is shaped as the distortion sawtooth waveforms of 50Hz through capacitor C 1, resistance R 1; Control the control utmost point 5 pin of time base circuit IC1 with it; Change the reference voltage value of time base circuit IC1 inside circuit comparator, thereby change the charge and discharge time of time base circuit IC1, reach the purpose that changes the oscillator frequency of oscillation.The ultrasonic output frequency is 20～50KHz, promotes high frequency piezoelectric ceramic sounding body HA and sends ultrasonic, can expel the mouse harm of certain limit.

Description of drawings

Accompanying drawing 1 is that the utility model provides an embodiment circuit working schematic diagram with the sweep-frequency B ultrasonic rat repellent of time base circuit 555 making.

Embodiment

Circuit working schematic diagram and description of drawings according to the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 shown in the accompanying drawing 1; And according to the annexation between the components and parts in the described each several part circuit of utility model content, and the components and parts technical parameter described in the embodiment requires to implement to realize the utility model.

The selection of components and parts and technical parameter thereof

IC1 is a time base circuit, and model is selected the NE555 type for use, and it is 8 pin biserial DIP encapsulation, each pin function difference: 1 pin connection circuit ground; 2 pin are trigger end, 3 pin outputs, and 4 pin preset ends, 5 pin are control voltage; 6 pin thresholdings (threshold value), 7 pin are discharge end, 8 pin connect the positive pole of dc source;

QZ is the full-bridge rectification element, and model selection work electric current is the silicon stack of 1A, or selects for use 4 silicon rectifier diodes to be connected into full bridge rectifier, and model is 1N4001;

Resistance uses metalfilmresistor or fixed carbon resister, and R1 is a resistance, and resistance is 1.5K Ω; R2 is a resistance, and its resistance is 1K Ω; R3 is a resistance, and its resistance is 15K Ω;

C1 is an electric capacity, and capacity is 0.22 μ F; C2 is an electric capacity, and capacity is 0.01 μ F; C3 is an electrochemical capacitor, and capacity is 1 μ F/16V; C4 is a Leaded Ceramic Disc Capacitor, and capacity is 1000PF;

HA is an irony piezo-electric ceramic sounding body, and model is the HTD-27A type, diameter ￠ 27.35mm, and maximum sound intensity is 52dB, the diameter of piezo-electric ceramic sounding body can not be greater than 27mm, otherwise the response of ultrasonic highest frequency will be very limited;

Dc source is made up of power frequency step-down transformer T and full bridge rectifier, and the power of power frequency step-down transformer T is 2W, and the ac output voltage of secondary coil L2 is 9V; The voltage of general dc source is high more, and hyperacoustic power output is big more, must not surpass 12V but the circuitry operating voltage is the highest.

The circuit production main points

The circuit of the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 is so long as the electronic devices and components performance of using is intact; Annexation according to components and parts shown in the accompanying drawing 1 is welded; And the physical connection line conscientiously checked and check; And install, welding errorless after, circuit generally need not be debugged can operate as normal.

Whole elements can be installed on the printed circuit board in the circuit, then circuit board are fixed in the plastic casing.Piezo-electric ceramic sounding body HA directly is bonded at the position of sound hole in the casing with 504 glue with it.Suggestion is not used and is helped audio amplifier, otherwise influences the sounding effect of high-frequency ultrasonic.

Method for using

Ultrasonic has congenitally just can not penetrate barrier, high directivity and the defective such as fast that decays, but the most energy of ultrasonic can through reflection, and mode such as refraction propagate, and then cover whole control space.In order to reach repellent effect preferably, use the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 should note several aspects in places such as warehouses:

First cleans out foreign material such as empty carton as far as possible, reduces the hiding-place of mouse, reduces the dead angle, make as far as possible mouse be exposed to ultrasonic can the scope of radiation within;

Second not must be noted that goods directly is deposited on the ground;

If the 3rd use in the warehouse preferably can be placed on goods on the shelf that overhead a chi is high;

The 4th will provide run away outlet or passage to mouse.

Claims

1. a sweep-frequency B ultrasonic rat repellent made from time base circuit 555 is made up of power frequency step-down transformer T, full bridge rectifier, sweep-frequency B oscillator and transducing circuit, and its characteristic comprises:

The sweep-frequency B oscillator is made up of time base circuit IC1, resistance R 2, resistance R 3, capacitor C 2, capacitor C 4; The anodal VCC of 4 pin of time base circuit IC1 and 8 pin connection circuits; 5 pin of time base circuit IC1 connect an end and the differential circuit of capacitor C 2, the other end connection circuit ground GND of 1 pin of time base circuit IC1 and capacitor C 2, and 7 pin of time base circuit IC1 link to each other with an end of an end of resistance R 2 and resistance R 3; The anodal VCC of the other end connection circuit of resistance R 2; 6 pin of time base circuit IC1 link to each other with the other end of resistance R 3 and an end of capacitor C 4 with 2 pin, the other end connection circuit ground GND of capacitor C 4, and 3 pin of time base circuit IC1 connect the transducing circuit.

2. the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 according to claim 1; It is characterized in that: the transducing circuit is made up of electrochemical capacitor C3 and piezo-electric ceramic sounding body HA; The positive pole of electrochemical capacitor C3 connects 3 pin of time base circuit IC1; The negative pole of electrochemical capacitor C3 connects the end of piezo-electric ceramic sounding body HA, the other end connection circuit ground GND of piezo-electric ceramic sounding body HA.

3. the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 according to claim 1; It is characterized in that: differential circuit is made up of capacitor C 1 and resistance R 1; The alternating current input b of one termination full-bridge rectification element QZ of capacitor C 1; Other end connecting resistance R1 one end of capacitor C 1,5 pin of resistance R 1 another termination time base circuit IC1.

4. the sweep-frequency B ultrasonic rat repellent made from time base circuit 555 according to claim 1; It is characterized in that: full bridge rectifier is made up of power frequency step-down transformer T, full-bridge rectification element QZ; The two termination 220V AC powers of power frequency step-down transformer T primary coil L1; The two ends of power frequency step-down transformer T secondary coil L2 meet alternating current input a and the alternating current input b of full-bridge rectification element QZ respectively; Full-bridge rectification element QZ direct current cathode output end links to each other with circuit anode VCC, and full-bridge rectification element QZ direct current cathode output end links to each other with circuit ground GND.