KR20000003302A - Electronic noxious insect extriminator - Google Patents

Abstract

PURPOSE: An electronic noxious insect exterminator is provided not to have tolerance for the insects and to enhance the reliability by lasting the extermination effect even the exterminator is used for long time. CONSTITUTION: An electronic noxious insect exterminator comprises:a signal input part(1) to be input with a control signal(CTL); an eruption part(2) controlled to set or reset by a pulse signal input through the signal input part to control the beginning and end of the eruption; and a first counter(5) to count the pulse signal input through the input part and to output the control signal every certain period.

Description

Electronic Pest Control

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic pest exterminator mounted on a cold / cold water purifier to combat pests by generating ultrasonic waves, and in particular, by converting the generated ultrasonic frequency variably every predetermined time unit, so that pests are not resistant to ultrasonic waves. The present invention relates to an electronic pest control device capable of ensuring high reliability in a pest control action.

In the conventional electronic insect exterminator using ultrasonic waves, pests such as cockroaches, mosquitoes, and moths are removed by ultrasonic waves, but after a certain time, the insects have resistance to the ultrasonic frequency, and the effect of insect extermination is extremely reduced. There was a problem.

The present invention seeks to solve the problems of the conventional electronic pest repeller as described above.

The electronic pest repeller of the present invention includes ultrasonic output means for generating ultrasonic waves, frequency setting means for varying ultrasonic frequencies so that the ultrasonic waves generated by the ultrasonic output means have at least two different frequencies, and a predetermined time. And controlling means for controlling the frequency setting means at intervals to prevent pests from being resistant to a particular ultrasonic wave.

The present invention provides an electronic pest repeller that has no fear that the effect of pest control is reduced even if it is used for a long time by varying the generated ultrasonic frequency every predetermined time so that the pests are not resistant to a specific ultrasonic wave.

1 is a block diagram of an electronic pest repeller of the present invention

One embodiment of the electronic pest repeller according to the present invention is shown in FIG. 1.

1, the electronic pest repeller of the present invention; A signal input unit 1 for receiving a control signal CTL, an oscillation unit 2 which is set and reset controlled by a pulse signal input through the signal input unit 1 to control the start and end of oscillation; A resistor R0-R4 and a capacitor C0 for setting the frequency of the ultrasonic wave generated by the oscillator 2 and any one of the resistors R1-R4 may be used as the resistor R0 and the capacitor ( Analog switch (S1-S4) for changing the frequency of the generated ultrasound by connecting to C0), an amplifier (3) for amplifying the ultrasonic signal output from the oscillator (2), and in the amplifier (3) A speaker 4 for combating pests by outputting an amplified ultrasonic signal, and a first counter 5 which is reset while counting a pulse signal input through the signal input unit 1 and outputting a control pulse at a predetermined time; ) And the output of the first counter 5 And a second counter 6 which sequentially turns on the analog switches S1-S4 at a predetermined time by performing a count.

The action of the electronic pest repeller of the present invention configured as described above is performed as follows.

First, when the control signal CTL is input, the control signal CTL is shaped into a signal matching and pulse signal through the signal input unit 1 and input to the oscillator 2 and the first counter 5.

The oscillation unit 1 is set or reset by the pulse signal input through the signal input unit 1 to control the start and end of the oscillation. In the case of the start of the oscillation, the resistor R0, the capacitor C0, and the resistor R1 Generates an ultrasonic signal of a predetermined frequency determined by one resistance value selected among -R4).

That is, when the clock CLK is input to the first counter 5 through the signal input unit 1, the first counter 5 performs a count every time the clock CLK is input (hexadecimal counter). When the count output value reaches the predetermined value Qn, one pulse signal is output, and the pulse signal is input to the second counter 6 at the rear end as the clock CLK.

The output Qn of the first counter 5 is also input as a reset (RST) signal from the signal input section 1 which is next input in the state where the first counter 5 is reset and thus initialized. The count operation continues by the control signal CTL.

On the other hand, the second counter 6 performs a count every time the clock CLK is input from the first counter 5 (decimal counter). In the initial reset state, a signal is output from the output terminal Q0. The first analog switch S1 is turned on by the signal, and when the first switch S1 is turned on, the resistor R1 is connected to the resistor R0 and the capacitor C0 circuit.

Therefore, at this time, the oscillator 2 generates and outputs an ultrasonic signal having a frequency set by K (R 0, R 1, C 0) (K is a constant), and this ultrasonic signal is amplified by the amplifier 3 to generate a speaker ( 4) is output.

Thereafter, as described above, when the counting operation of the first counter 5 and the counting operation of the second counter 6 proceed, and a signal is output from the output terminal Q1 of the second counter 6, the second analog switch S2. ) Is turned on.

When the second analog switch S2 is turned on, the resistor R2 is connected to the resistor R0 and the capacitor C0 circuit.

Therefore, at this time, the oscillator 2 generates and outputs an ultrasonic signal having a different frequency set by K (R 0, R 2, C 0) (K is a constant), and this ultrasonic signal is amplified by the amplifier 3 to generate a speaker. Is outputted as (4).

Thereafter, as described above, when the counting operation of the first counter 5 and the counting operation of the second counter 6 proceed, and a signal is output from the output terminal Q2 of the second counter 6, the third analog switch S3. ) Is turned on.

When the third analog switch S3 is turned on, the resistor R3 is connected to the resistor R0 and the capacitor C0 circuit.

Therefore, at this time, the oscillator 2 generates and outputs an ultrasonic signal of another frequency set by K (R 0, R 3, C 0) (K is a constant), which is amplified by the amplifier 3. It is output to the speaker 4.

Thereafter, as described above, when the counting operation of the first counter 5 and the counting operation of the second counter 6 proceed and a signal is output from the output terminal Q3 of the second counter 6, the fourth analog switch S4. ) Is turned on.

When the fourth analog switch S4 is turned on, the resistor R4 is connected to the resistor R0 and the capacitor C0 circuit.

Therefore, at this time, the oscillator 2 generates and outputs an ultrasonic signal of another frequency set by K (R 0, R 4, C 0) (K is a constant), which is amplified by the amplifier 3. It is output to the speaker 4.

After that, when the count signal is output from the count output terminal Q4 of the second counter 6, the second counter 6 is reset and outputs the signal from the output terminal Q0, so that the process returns to the ultrasonic wave oscillation step of the first set frequency. Done.

By repeating this series of operations, pests are resistant to long-term use with a certain frequency of ultrasonic waves, which can be easily solved by varying the ultrasonic frequency.

In addition, the electronic insect repellent device of the present invention may be used as a single device, but as described above, an embodiment mounted in a cold / hot water purifier or a dish disinfection dryer that requires cleanliness and hygiene management may be easily implemented. In this case, a water purifier or dish disinfection dryer may serve as a pest control function, thereby creating a more hygienic environment.

The electronic pest exterminator of the present invention automatically changes the ultrasonic frequency generated at regular intervals when exterminating pests using ultrasonic waves, thereby preventing pests from becoming resistant.

Therefore, even when used for a long time, the pest exterminating effect is sustained and the pests can be exterminated with high reliability.

Claims (4)

Ultrasonic output means for generating ultrasonic waves, frequency setting means for varying the ultrasonic frequency so as to have a different frequency of at least two stages of the ultrasonic waves generated by the ultrasonic output means, and controls the frequency setting means at predetermined time intervals Electronic pest control device characterized in that it comprises a control means to prevent the pests to withstand a particular ultrasonic resistance. 2. The ultrasonic wave output apparatus according to claim 1, wherein the ultrasonic wave output means comprises an oscillation circuit for oscillating an ultrasonic wave of a predetermined frequency determined by time constant values of a resistor and a condenser, an amplifier circuit for amplifying and outputting an ultrasonic signal output from the oscillation circuit, and a speaker. The frequency setting means includes a plurality of resistors for determining the oscillation time constant of the oscillation circuit and a plurality of analog switches for connecting any one of the respective resistors to the oscillation circuit, and the control means clocks at a predetermined time. And a second counter for counting a first counter and a second counter for counting a first counter output and turning on any one of the plurality of analog switches. The electronic pest eradicator according to claim 1 or 2, wherein the pest exterminator is mounted in a cold / cold water purifier. The electronic pest eradicator according to claim 1 or 2, wherein the pest exterminator is mounted in a dish disinfection dryer.