KR20090109885A - Method and apparatus for examinating noxious insect having piezoelectricity speaker - Google Patents

Abstract

PURPOSE: An apparatus for expelling harmful insect containing piezoelectricity speaker and a method therefore are provided to maximize effect of expelling harmful insect by radiating the light that insects dislike through a piezoelectricity speaker. CONSTITUTION: An apparatus for expelling harmful insect containing piezoelectricity speaker comprises a frequency generating unit(10), an amplifying unit(20), a piezoelectricity speaker unit(30), a lighting-emitting unit(40), a display unit(50), and a control unit(60) are included. The frequency generating unit generates frequency of various bands for expelling harmful insect. The amplifying unit amplifies and outputs frequency generated in the frequency generating unit. The piezoelectricity speaker unit has a bent speaker cover surface and a piezoelectricity vibration plate.

Description

Insect control device and method with piezo speaker {Method and apparatus for examinating noxious insect having piezoelectricity speaker}

The present invention is to combat various kinds of pests (rats, cockroaches, mosquitoes, ants, etc.), and randomly generated (copy (輻射)) to increase the sound pressure through a separate designed piezo speaker of the band hate pests The present invention relates to a pest control device and method including a piezo speaker capable of combating various kinds of pests by causing light of a wavelength that the pests dislike to emit light in a resting period that does not generate frequency.

There are many harmful animals and pests that directly harm human living spaces, such as rats, cockroaches, ticks, and fleas.

Insects such as rats, cockroaches, ants, etc. may also be introduced through food ingredients or product boxes purchased from the market, and may be invaded at any time through upper or lower houses.

 Insects such as rats, cockroaches and ants are not only disgusting, but also carry germs that carry food poisoning and infectious diseases, thereby threatening people's health.

In addition, the characteristics of such pests are that they are very fertile, and in the case of cockroaches or ants, a lot more pests are hidden in the invisible space, and in the case of rats, they are mentally themselves. It can be a tremendous stress and a threat to infants, children and women.

In the case of rats, fires due to electric short-circuits caused by steaming are often reported, and food poisoning may be caused by bacteria in rat feces.

Cockroaches are omnivorous insects that eat anything, and when they eat new foods, they can spew and eat the foods they eat before.

In the case of ants, not only contaminate food, but also bite people, such as infants, causing secondary toxicity, and can carry the disease by holding pathogens such as asthma and allergies.

In order to eliminate pests such as rats, cockroaches and ants, pesticides or poisons suitable for each characteristic were installed everywhere, and the pests were eaten by killing them by eating them.

However, the above method may cause not only harmful animals and pests, but also dogs and cats raised for pets in the house, and may have a fatal effect on infants and young children. In addition, there is a problem that it is troublesome to pay much attention to preventing exposure of killed pests and animal carcasses to children or pets.

In order to solve the various problems as described above, the use of ultrasonic extermination, for example, Utility Model Registration Application Publication No. 1997-2390 (ultrasonic pest extermination), to combat by generating ultrasonic waves that harmful animals or pests do not like The device was designed to increase the rate and to be harmless to humans.

However, the Utility Model Registration Publication No. 1997-2390 used a method of converting the frequency using variable resistance from time to time to prevent immunity of harmful animals and pests by ultrasonic waves of a single frequency. There is a disadvantage that the user must adjust the variable resistance from time to time, the change in the frequency manually adjusted by the user is also a disadvantage that the immune effect is not completely solved.

In addition, there is a disadvantage in that the structure is complicated and large because it is controlled in a fixed circuit.

The present invention is to solve the above-mentioned disadvantages and problems of the prior art, the present invention is to combat various kinds of pests (rats, cockroaches, mosquitoes, ants, etc.), separately from the various frequencies of the band hate pests The piezo speaker is designed to raise sound pressure randomly through the designed piezo speaker, and to produce various kinds of pests by emitting light of wavelengths that do not like pests at rest periods that do not generate frequencies. Its purpose is to provide a pest control device and method.

The pest control device of the present invention for achieving the above object is a frequency generator for generating a frequency of various bands and amplitudes for combating harmful rodents or harmful pests; An amplifier for amplifying and outputting the frequency generated by the frequency generator; A curved speaker cover surface and a piezoelectric element diaphragm are provided to output the frequency amplified by the amplifier through the piezoelectric element diaphragm, and sound waves output from the piezoelectric element diaphragm are output along the curved speaker surface. A piezo speaker unit configured to increase sound pressure so as to have a performance of a horn speaker; A light emitting unit that emits light for combating the harmful rodents or harmful insects; An operation display unit for displaying an operation state of the frequency generator or the light emission unit; And, the control unit for controlling to randomly output the frequency of various bands and amplitudes through the frequency generator according to a program set to combat the harmful rodents or harmful insects or to operate the light emitting unit when the frequency generator is inactive; It is configured to include.

Wherein the frequency generator is a first frequency generating circuit for generating 3KHz to 50KHz frequency to combat harmful rodents such as rats, squirrels, blue bristles, and 10KHz to 50KHz frequency to combat harmful pests such as cockroaches, bats, flying insects It is preferable that the second frequency generating circuit for generating a third frequency generating circuit for generating a frequency of 20KHz to 50KHz in order to combat harmful pests such as mites fleas, ants.

In addition, the light emitting unit is preferably composed of one or more light emitting diodes (LEDs) emitting yellow light disliked by the harmful pests or harmful rodents or a yellow lamp.

On the other hand, the operation display unit preferably comprises a plurality of light emitting diodes (LEDs) for displaying the operation change state or the non-operation state of the frequency generator and the light emitting unit.

The piezo speaker unit includes a speaker main body in which the piezo element diaphragm is installed, and the piezo element diaphragm and the speaker cover are configured to face each other, and the speaker main body is exposed to a plurality of light emitting units for exposing the light emitting unit. A plurality of coupling grooves are formed for coupling a hole and the speaker cover to the speaker body, and a plurality of coupling protrusions for coupling with the plurality of coupling grooves are formed at a surface corresponding to the speaker body among the speaker cover surfaces. desirable.

On the other hand, the present invention pest control method for achieving the above object, has a frequency generating unit and light emitting unit for pest control and the speaker cover surface for outputting the sound wave output from the piezo element diaphragm and the piezo element diaphragm according to the curved surface In the pest control method of the pest control device having a piezo speaker, when the power is supplied to the pest control device, to randomly select the amplitude and band of the frequency for pest control according to a program set in the controller of the pest control device step; Controlling the frequency generator to generate a frequency for combating pests so that the frequency is oscillated for a predetermined time; Generating a frequency for combating the pests in the frequency generator, and outputting the frequency through the piezo speaker after the corresponding frequency is amplified by the amplifier; Determining, by the control unit, to stop the frequency output of the frequency output for combating the pests, stopping the generation of the frequency at the frequency generator, and controlling the light emitting part to emit light for the pest control; And the control unit returns to the step of turning off the light emitting unit when the rest period has elapsed and controlling to select a frequency for combating the pest according to a set program. It is made, including.

In this case, the frequency set in the frequency generating unit for oscillating the pests is preferably set between 1 minute and 10 minutes, and the resting period is preferably between 1 second and 10 seconds.

According to the present invention as described above has the following effects.

Firstly, the frequency of bands that pests dislike is repeatedly (operated) irregularly, and the resting period is minimized to minimize immunity due to the learning effect of the pests, and during the resting period, the insects emit light that the pests dislike. There is an effect that can maximize the effect.

Second, by using a piezo speaker can not only increase the sound pressure, but also can reduce the size of the pest control device.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the pest control device and method having a piezo speaker according to the present invention will be described in detail.

In addition, the terminology used in the present invention is a general term that is currently widely used as possible, but in certain cases, the term is arbitrarily selected by the applicant, and in this case, the meaning is described in detail in the description of the present invention, and a simple term is used. It is to be understood that the present invention is to be understood as a meaning of terms rather than names.

In addition, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly communicate without obscure the subject matter of the present invention by omitting unnecessary description.

1 is a block diagram for explaining a pest control device having a piezo speaker according to an embodiment of the present invention, Figure 2 is a cross-sectional view illustrating the speaker used in the pest control device shown in Figure 1, Figure 3 2 is a perspective view of the speaker shown in FIG. 2, FIG. 4 is a perspective view for explaining a coupling groove of the speaker shown in FIG. 2, and FIG. 5 is a view for explaining the performance improvement by the speaker cover shown in FIG.

As shown in FIG. 1, the pest control device including the piezo speaker according to the first embodiment of the present invention includes outdoor harmful rodents such as rats, squirrels, and bristles, cockroaches, bats, and insects (flies, mosquitoes, etc.). Frequency generator 10 for generating frequencies of various bands and amplitudes for combating harmful pests such as harmful pests, mites, fleas, ants, etc., and an amplifier for amplifying and outputting frequencies generated by the frequency generator 10. 20 and the frequency amplified by the amplification unit 20 are output through the piezoelectric element diaphragm 33, and sound waves output from the piezoelectric element diaphragm 33 are output along the curved speaker cover surface and horn ( horn) Piezo speaker unit 30 to increase the sound pressure output to have the performance of the speaker, a light emitting unit 40 for emitting light for combating harmful rodents or harmful insects, a frequency generator 10 or a light emitting unit ( 4 An operation display unit 50 for displaying an operation state of 0) and one of the first to third frequency generator circuits 11, 12 and 13 of the frequency generator 10 according to a set program. The control unit 60 is configured to control the light emitting unit 40 to operate or to operate when the first to third frequency generating circuits 11, 12, 13 of the frequency generator 10 are inoperative.

Here, reference numeral 70 denotes a power supply unit 70 for supplying power to the pest control device. The input power is designed to use AC 100 to 220V (free volt) or 220V only, and the output power is DC (direct current). ) Configure rectifier circuit and install fuse inside.

The frequency generator 10 includes a first frequency generator 11 for generating a frequency for combating outdoor harmful rodents such as rats, squirrels, blue bristles, cockroaches, bats, and insects (fly, mosquitoes, etc.). A second frequency generating circuit 12 for generating a frequency for combating harmful pests and a third frequency generating circuit 13 for generating a frequency for combating harmful pests such as mites fleas, ants, etc. Frequency generator circuit 11 is a circuit for generating a frequency of 3KHz to 50KHz to combat harmful rodents such as rats, squirrels, blue bristles, etc., the second frequency generator circuit 12 is cockroaches, bats, flying insects (fly, mosquitoes) Etc.) to generate a harmful frequency such as 10KHz to 50KHz in order to combat harmful pests, and the third frequency generating circuit 13 is a harmful pest such as mites, fleas and ants. A circuit for generating a frequency of 20KHz to 50KHz in order to fight against.

As described above, the first to third frequency generating circuits 11, 12, and 13 generating the frequencies of different bands adjust the frequency amplitudes of the corresponding bands under the control of the controller 60, and the amplifier 30 Will output

The light emitting unit 40 may be composed of one or more light emitting diodes (LEDs) emitting light (eg, yellow light) disliked by pests or harmful rodents, or may be configured by a separate yellow lamp.

The operation display unit 50 is a display unit for displaying the operation (change) state or the non-operation state of the frequency generator 10 and the light emitting unit 40, and may be configured as, for example, a light emitting diode (LED).

The controller 60 controls the first to third frequency generators 11 and 12 and 13 of the frequency generator 10 to generate a frequency of a set band, but uses a pulse width modulation (PWM) scheme. To control the frequency amplitude of the band. Meanwhile, the controller 60 randomly operates one of the first to third frequency generator circuits 11, 12 and 13 for a predetermined time (for example, 1 minute to 10 minutes), and the frequency generator 10 The first to third frequency generating circuits 11, 12, and 13 are placed in idle state (for example, 1 second to 10 seconds). At this time, in the resting period, power is supplied to the light emitting unit 40 so that light (yellow light) disliked by harmful rodents or harmful pests is emitted.

In other words, for harmful rodents or pests, the frequencies of various bands are basically generated at random, but in order for the harmful rodents or pests not to generate frequencies in order to eliminate the learning effect (immunity) for the frequency band, In the off-season, light of the wavelengths that pests dislike is emitted.

On the other hand, the speaker unit 30 may be configured as a separate speaker to increase the sound pressure rather than a conventional speaker. To this end, in the present invention, the speaker unit is configured by using a piezo element in the speaker unit 30.

2 to 4, the speaker of the present invention is basically a speaker main body 31, the speaker cover 32, the piezoelectric element diaphragm 33, the light emitting portion 40 as shown in FIG. The light emitting part exposure hole 34 for exposing and the speaker cover 32 are composed of a plurality of coupling grooves 35 for coupling the speaker body 31. And it can be seen that a plurality of coupling projections 36 for coupling with a plurality of coupling grooves 35 on the surface corresponding to the speaker body 31 of the speaker cover 32.

In brief description of a general speaker, a speaker refers to a sound aroma device that converts an electrical signal into vibration of a diaphragm to generate a small density wave in the air to radiate sound waves, which is a type in which the diaphragm is directly placed in the air. Radiation speakers are called, and the type of diaphragm is placed in the horn.

The most common type of radiator is a cone speaker, which is commonly used in radio and stereo equipment. Conspeakers use a lot of conical plates in the diaphragm, and a coin type is used more than an electromagnetic type magnetic speaker. Basically, they are less efficient than horn speakers, but they are inexpensive and compact.

The hybrid type is a trumpet speaker that can be seen outdoors, such as a station or a playground. It is used for mid-sized and smaller speakers because it has good electrical and acoustic characteristics and does not require a sound box to accommodate the speaker. There is a characteristic that the lowest frequency of sound that can be limited.

On the other hand, people generally do not hear high frequency ultrasounds emitted by dolphins or bats, and conversely, even when the frequencies are too low.

In general, the frequency of sound a human can hear is called an audible frequency, which is a frequency range of about 16Hz to 20,000Hz (20KHz). In everyday life, the sound heard through music does not fall below 10 kHz or significantly exceed 10 kHz.

Therefore, in the present invention, the control unit 60 controls the frequency generating unit 10 to generate a frequency for exterminating insects, and is initially set to properly generate a frequency in the 3 KHz to 50 KHz band depending on the place. can do. For example, in a space where a person lives (home, office), the frequency band above the audible frequency band is set to generate a frequency for pest control, and in a space where a person does not live (outdoor, warehouse, etc.) It can be set to generate a frequency for combating pests.

In addition, in the pest control device having a piezo speaker of the present invention, in order to improve the sound pressure compared to the size of the piezo speaker unit 30, the cover surface facing the piezo element diaphragm 33 of the cover 32 surface (horn) In this case, the horn can be designed by the following equation.

First, when the horn width is m, the sound velocity is c, and the cutoff frequency is 1500 Hz, m = 4πfc / c can be obtained as 4 * 3.14 * 1500/34340 = 0.55m ² .

And when the opening area of the horn is Sm, the opening area m = c ² Can be found as / 4πfc ² .

If x is the length of the horn, x = (e / m) log10 (e / m ro). Where e is the natural coefficient (constant) and ro is the slot area of the horn.

On the other hand, when the area of the opening of the horn is Sm, it can be found as Sm = So ^mx . Where So is the slot area (inlet area of the horn), e is the natural coefficient, m is the width of the horn as described above, and x is the length of the horn.

In the design of the horn of the present invention, the cross section is doubled because the length of the horn is constant so that the cross section can be doubled even when cutting any part of the central horn.

In addition, the cut-off frequency in the present invention can be used in the range of 1500Hz to 3000Hz, when the diameter of the slot (inlet) of the horn is 10mm, the diameter of the opening surface of the horn is 72.8mm, and the length (full length) of the horn is 72mm. Although the shape of the actual speaker cover 32 has a curved shape in which the irregularities as shown in FIGS. 2 to 4 are repeated, the actual performance is the same as that of a horn speaker as shown in FIG. 5. do. In other words, the sound wave output through the piezoelectric element diaphragm 33 hits the speaker cover 32 and is output along the curvature, thereby producing the same performance as the horn speaker shown in FIG. 5.

When the piezoelectric element speaker is used, the thickness of the diaphragm becomes thinner than the diaphragm used in the general speaker by using the piezoelectric element diaphragm, and thus, the size of the pest control device can be reduced by the piezoelectric element diaphragm. Ultrasonic wave with high sound pressure is generated along the curve of the), so it is possible to achieve the performance of the horn speaker even if the speaker is not specially configured in the form of a horn. It can be seen that the effect is to produce a pest control device that can be reduced in size but excellent in ultrasonic performance.

6 is a flowchart illustrating a pest control method using a pest control device having a piezo speaker according to the present invention.

In the pest control method according to the present invention, when power is supplied to the pest control device (S10), a frequency for pest control is randomly selected according to the set program (S20).

Accordingly, the control unit controls so that the corresponding frequency is oscillated in one of the first to third frequency generating circuits (S30).

Then, the frequency generating circuit generates a frequency for combating pests, and the frequency is amplified by the amplifier and then the sound pressure is increased through the piezo speaker unit (S40).

On the other hand, the control unit determines the pause of the frequency output for combating pests (S50). That is, it is determined whether the time for which the frequency is output is set (for example, 1 minute to 10 minutes) has elapsed. This is to prevent the immunity of pests that may occur even if the frequencies of different bands and amplitudes are randomly repeated as described above.

As a result of the determination (S50), the control unit stops the operation of the first to third frequency generating circuits of the frequency generating unit, and supplies power to the light emitting unit so that the light for exterminating insects emits light for a predetermined time (S60). . In this case, the light emission may be continuously emitted for a set time (for example, 1 second to 10 seconds), or may be repeatedly turned on / off within the set time.

However, if the determination result (S50) is not the pause time, steps S20 to S40 are repeated.

Then, it is determined through the light emitting unit that the light emission time for combating pests, that is, the resting period has elapsed (S70).

As a result of the determination (S70), when the corresponding time has elapsed, the light emitting unit is turned off, and the method returns to the step S20 of selecting a frequency for exterminating insects according to the set program.

Although the present invention has been described as an example and another example as described above, the present invention is not necessarily limited to these examples, and various modifications can be made without departing from the spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical idea of the present invention but to explain the present invention, and the scope of the technical idea of the present invention is not limited by these examples. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a block diagram for explaining a pest control device having a piezo speaker according to an embodiment of the present invention,

2 is a cross-sectional view illustrating a speaker used in the pest control device shown in FIG. 1;

3 is a perspective view of the speaker shown in FIG.

4 is a perspective view illustrating a coupling groove of the speaker illustrated in FIG. 2;

5 is a view for explaining the performance improvement by the speaker cover shown in FIG.

6 is a flowchart illustrating a pest control method using a pest control device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: frequency generator 11, 12, 13: frequency generator circuit

20: amplification unit 30: piezo speaker unit

31: speaker body 32: speaker cover

33: piezo element diaphragm 34: light emitting portion exposed hole

35: coupling groove 36: coupling protrusion

40: light emitting unit 50: operation display unit

60 control unit 70 power supply unit

Claims (7)

A frequency generator for generating harmful rodents and frequencies of various bands and amplitudes for combating harmful pests; An amplifier for amplifying and outputting the frequency generated by the frequency generator; A curved speaker cover surface and a piezoelectric element diaphragm are provided to output the frequency amplified by the amplifier through the piezoelectric element diaphragm, and sound waves output from the piezoelectric element diaphragm are output along the curved speaker surface. A piezo speaker unit configured to increase sound pressure so as to have a performance of a horn speaker; A light emitting unit that emits light for combating the harmful rodents or harmful insects; An operation display unit for displaying an operation state of the frequency generator or the light emission unit; And, A controller for controlling to randomly output frequencies of various bands and amplitudes through the frequency generator according to a program set to combat the harmful rodents or insects or to operate the light emitting unit when the frequency generator is inoperative; Pest control device having a piezo speaker characterized in that comprises a. The method of claim 1, The frequency generator comprises a first frequency generating circuit for generating a frequency of 3KHz to 50KHz to combat harmful rodents such as rats, squirrels, and bristles, and 10KHz to 50KHz frequency to combat harmful pests such as cockroaches, bats and flying insects. A pest control device comprising a piezo speaker comprising a second frequency generating circuit for generating and a third frequency generating circuit for generating a frequency of 20KHz to 50KHz to combat harmful pests such as mites fleas and ants. The method of claim 1, The light emitting unit is a pest control device comprising a piezo speaker, characterized in that composed of one or more light emitting diodes (LEDs) for emitting yellow light disliked by the harmful pests or harmful rodents. The method of claim 1, And the operation display unit comprises a plurality of light emitting diodes (LEDs) for displaying an operation change state or a non-operation state of the frequency generator and the light emitting unit. The method of claim 1, The piezo speaker unit includes a speaker main body in which the piezo element diaphragm is installed, and the piezo element diaphragm and the speaker cover are configured to face each other, and the speaker main body exposes a plurality of light emitting units to expose the light emitting unit. And a plurality of coupling grooves for coupling the speaker cover to the speaker body, and a plurality of coupling protrusions for coupling with the plurality of coupling grooves on a surface corresponding to the speaker body among the speaker cover surfaces. A pest control device provided with a piezo speaker. In the pest control method of the pest control device comprising a piezo speaker having a frequency generating unit for exterminating the insect, and a light emitting unit and a piezo speaker diaphragm and a speaker cover surface for outputting sound waves output from the piezo element diaphragm according to the curved surface, When power is supplied to the pest control device, randomly selecting an amplitude and a band of a frequency for pest control according to a program set in the controller of the pest control device; Controlling the frequency generator to generate a frequency for combating pests so that the frequency is oscillated for a predetermined time; Generating a frequency for combating the pests in the frequency generator, and outputting the frequency through the piezo speaker after the corresponding frequency is amplified by the amplifier; Determining, by the control unit, to stop the frequency output of the frequency output for combating the pests, stopping the generation of the frequency at the frequency generator, and controlling the light emitting part to emit light for the pest control; And, The control unit returns to the step of turning off the light emitting part when the rest period has elapsed, and controlling to select a frequency for the pest control according to a set program; Pest control method comprising a. The method of claim 6, In the frequency generating unit, the frequency set to oscillate for pest control is between 1 minute and 10 minutes, and the resting period is characterized in that the pest is between 1 second to 10 seconds.

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