CN210017597U

CN210017597U - Intelligent mosquito dispeller

Info

Publication number: CN210017597U
Application number: CN201920596911.3U
Authority: CN
Inventors: 周天沛
Original assignee: Xuzhou College of Industrial Technology
Current assignee: Xuzhou College of Industrial Technology
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-02-07
Anticipated expiration: 2029-04-28

Abstract

An intelligent mosquito dispeller, wherein an oscillating circuit comprises resistors R1 and R2, capacitors C1, C2 and C3, an integrated circuit IC1, a battery E and a power switch S1; the power amplifier circuit comprises resistors R3 and R4, capacitors C4 and C5, diodes D1 and D2, triodes BG1, BG2 and BG3 and a loudspeaker SW; only the female mosquito will bite the person, and the male mosquito will escape after the female mosquito comes. The utility model is to simulate the sound wave signal of 25kHz that the male mosquito flies to the formula power amplifier circuit is launched out through analogizing to draw by class B, has reached the mosquito repellent effect. The utility model discloses simple structure, the mosquito repellent accuracy is high, and uses the injury-free to the human body for a long time.

Description

Intelligent mosquito dispeller

Technical Field

The utility model relates to a mosquito repellant, in particular to an intelligent mosquito repellant.

Background

In the hot summer, if some methods for repelling mosquitoes are not available, mosquito bites not only affect the sleep of the people, but also may bring adverse harm to the health of the people, because the mosquitoes carry some viruses and possibly bring threats to the health of the people.

The common mosquito repelling method is a mosquito repellent incense or an electric mosquito repellent, but the common mosquito repelling method has certain harm to human bodies after long-term use.

Disclosure of Invention

To the problem that above-mentioned prior art exists, the utility model provides an intelligence mosquito repellant, simple structure, the mosquito repellent accuracy is high, and uses harmless to the human body for a long time.

In order to achieve the purpose, the utility model provides an intelligent mosquito dispeller, which comprises an oscillating circuit and a power amplifier circuit, wherein the oscillating circuit comprises resistors R1 and R2, capacitors C1, C2 and C3, an integrated circuit IC1, a battery E and a power switch S1; the power amplifier circuit comprises resistors R3 and R4, capacitors C4 and C5, diodes D1 and D2, triodes BG1, BG2 and BG3 and a loudspeaker SW;

the negative electrode of the battery E is connected with one end of a power switch S1, the positive electrode of the battery E is respectively connected with the positive electrode of a capacitor C1, the pin 4 of an integrated circuit IC1, the pin 8 of the integrated circuit IC1, one end of a resistor R1, one end of a resistor R4 and the collector of a triode BG2, the other end of a resistor R1 is respectively connected with one end of a resistor R2 and the pin 7 of an integrated circuit IC1, the other end of a resistor R2 is respectively connected with the pin 2 of an integrated circuit IC1, the pin 6 of the integrated circuit IC1 and one end of a capacitor C2, the pin 5 of the integrated circuit IC1 is connected with one end of a capacitor C3, the pin 3 of the integrated circuit IC 3 is connected with the negative electrode of a capacitor C3, the positive electrode of the capacitor C3 is respectively connected with one end of a resistor R3, the base of a triode BG3 and the positive electrode of a diode D3, the negative electrode of a diode D3 is connected with the emitter of the diode D3, and the other end of the resistor, An emitter of the transistor BG3, an anode of the capacitor C5, a collector of the transistor BG1 is connected with a cathode of the diode D2 and a base of the transistor BG3 respectively, a cathode of the capacitor C5 is connected with one end of the speaker SW, and the other end of the speaker SW, a collector of the transistor BG3, an emitter of the transistor BG1, the other end of the capacitor C3, a pin 1 of the integrated circuit IC1, the other end of the capacitor C2, a cathode of the capacitor C1 and the other end of the power switch S1 are all grounded.

As a further improvement of the utility model, the model of the integrated circuit IC1 is NE 555.

As a further improvement of the utility model, triode BG1 is the NPN cast, and the model is 9014, and triode BG2 is the NPN cast, and the model is 8550, and triode BG3 is the PNP cast, and the model is 8050.

As a further improvement of the present invention, the model of the diodes D1 and D2 is IN4118, and the voltage of the battery E is 9V.

Compared with the prior art, the utility model discloses an oscillating circuit includes resistance R1, R2, electric capacity C1, C2, C3, integrated circuit IC1, battery E and switch S1; the power amplifier circuit comprises resistors R3 and R4, capacitors C4 and C5, diodes D1 and D2, triodes BG1, BG2 and BG3 and a loudspeaker SW; only the female mosquito will bite the person, and the male mosquito will escape after the female mosquito comes. The utility model is to simulate the sound wave signal of 25kHz that the male mosquito flies to the formula power amplifier circuit is launched out through analogizing to draw by class B, has reached the mosquito repellent effect. The utility model discloses simple structure, the mosquito repellent accuracy is high, and uses the injury-free to the human body for a long time.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, an intelligent mosquito dispeller comprises an oscillation circuit and a power amplifier circuit, wherein the oscillation circuit comprises resistors R1 and R2, capacitors C1, C2 and C3, an integrated circuit IC1, a battery E and a power switch S1; the power amplifier circuit comprises resistors R3 and R4, capacitors C4 and C5, diodes D1 and D2, triodes BG1, BG2 and BG3 and a loudspeaker SW;

The resistance values of these elements in fig. 1 are well known and can be adjusted as required by those skilled in the art.

The working principle of the utility model is as follows: as shown in fig. 1, when the power switch S1 is pressed, the integrated circuit IC1 and the multivibrator circuit including the resistors R1 and R2 and the capacitor C2 start to operate, and output a square pulse with a period of 0.7 × (R1+2R2) × C2 equal to 0.04 × 10^-3s, i.e., the output frequency of 25kHz, which is the frequency of the sonic signal generated by the flight of the male mosquitoes. In order to obtain the output signal of sufficient range, the utility model discloses a power amplifier circuit compares class A power amplifier, the utility model discloses a class B analogizes two triodes BG2, BG3 of drawing formula power amplifier circuit wheel flow work in two half cycles, and its efficiency is higher, and diode D1, D2 are in order to eliminate the crossover distortion.

Claims

1. An intelligent mosquito dispeller comprises an oscillation circuit and a power amplifier circuit, and is characterized in that the oscillation circuit comprises resistors R1 and R2, capacitors C1, C2 and C3, an integrated circuit IC1, a battery E and a power switch S1; the power amplifier circuit comprises resistors R3 and R4, capacitors C4 and C5, diodes D1 and D2, triodes BG1, BG2 and BG3 and a loudspeaker SW;

2. The intelligent mosquito dispeller of claim 1, wherein the integrated circuit IC1 is NE555 in model.

3. The intelligent mosquito dispeller of claim 1, wherein the transistor BG1 is an NPN tube type, model 9014, the transistor BG2 is an NPN tube type, model 8550, and the transistor BG3 is a PNP tube type, model 8050.

4. The intelligent mosquito dispeller of claim 1, wherein the diodes D1 and D2 are IN4118, and the voltage of the battery E is 9V.