CN202554546U

CN202554546U - Electronic air purification device

Info

Publication number: CN202554546U
Application number: CN2012202156769U
Authority: CN
Inventors: 刘喆
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-14
Filing date: 2012-05-14
Publication date: 2012-11-28
Anticipated expiration: 2022-05-14

Abstract

The utility model discloses an electronic air purification device which comprises a 12V direct-current power supply, a self-excited oscillator circuit, a negative high-voltage rectification circuit and a high-voltage amplification circuit, wherein the selected model of a power switch integrated circuit IC1 in the self-excited oscillator circuit is TWH8751. According to the electronic air purification device, air is ionized by negative high voltage via an electronic manner, so that the contents of negative oxygen ions and a certain amount of ozone in indoor air are increased, the quality of the indoor air is improved, the indoor air is kept fresh and benefit is brought to human health. Medical clinic practice proves that the negative ions have auxiliary curative effects for the diseases in the aspects such as the respiratory system, circulatory system and nervous system of a human body and is beneficial to human health and conductive to improving the work efficiency, so that the electronic air purification device is especially suitable for the air purification of closed places such as families, offices and public places and also suitable for application in the medical field.

Description

The electronic air purifier

Technical field

This utility model belongs to electronic technology and air purifying process field, relates to a kind of electronic air purifier.

Background technology

The pollution of urban air now constantly aggravates, in the room air quality of sealing worse and worse.Harmful organisms such as excessive accumulative antibacterial, virus not only produce niff in the air, make the air dirt unpleasant, also can cause the problem of harmful healths such as headache, skin or eyes are irritated, tired, absent minded.

The electronic air purifier utilizes the electronics mode to make the negative high voltage ionized air, with increase negative oxygen ion and the content of a certain amount of ozone in room air, thereby improves IAQ, keeps room air pure and fresh, helps health.The clinical medicine practice shows: negative oxygen ion all has auxiliary curative effect to the disease of the aspects such as respiratory system, blood circulation and nervous system of human body, both has been of value to health, also helps increasing work efficiency.Thereby it is specially adapted to the air cleaning in sealing places such as family, office, public place, also is adapted at medical domain and uses.

Below specify the related in force correlation technique content of this electronic air purifier.

The utility model content

Goal of the invention and beneficial effect: the electronic air purifier utilizes the electronics mode to make the negative high voltage ionized air; To increase negative oxygen ion and the content of a certain amount of ozone in room air; Thereby improve IAQ, keep room air pure and fresh, help health.The clinical medicine practice shows: negative oxygen ion all has auxiliary curative effect to the disease of the aspects such as respiratory system, blood circulation and nervous system of human body, both has been of value to health, also helps increasing work efficiency.Thereby it is specially adapted to the air cleaning in sealing places such as family, office, public place, also is adapted at medical domain and uses.

The circuit working principle: the circuit of electronic air purifier is that core devices is formed negative oxygen ion generator with TWH8751; Because the 2nd foot of TWH8751 is electronegative potential in the circuit; Agitator is starting of oscillation at once; Its frequency of oscillation is about 1KHz, can obtain about 6KV high pressure at the secondary coil L2 of impulse type booster transformer B, through producing negative oxygen ion after the high voltage silicon rectifier stack D2 rectification.The negative high voltage discharger adopts open, can improve the concentration of negative oxygen ion greatly, and limit the concentration of ozone.When negative oxygen ion reached finite concentration in the room air, abnormal flavour or smog in promptly can decontamination chamber be realized the purpose of fresh air.

Technical scheme: the electronic air purifier, it comprises 12V dc source, self-excited oscillator circuit, negative high voltage rectification circuit and electrion device, it is characterized in that:

The self-excited oscillator circuit: the vibration winding L 1 by power switch circuit IC1, resistance R 1, electric capacity of the dacron C1, resistance R 2 and impulse type booster transformer B is formed; The model that power switch circuit IC1 selects for use is TWH8751; The anodal VCC of the 5th foot connection circuit of power switch circuit IC1; The 1st foot of power switch circuit IC1 connects the end of electric capacity of the dacron C1 and an end of resistance R 2; The 3rd foot connection circuit ground GND of the other end of electric capacity of the dacron C1 and power switch circuit IC1; One end of the other end of the 4th foot connecting resistance R2 of power switch circuit IC1 and impulse type booster transformer B vibration winding L 1, the anodal VCC of other end connection circuit of impulse type booster transformer B vibration winding L 1;

Negative high voltage rectification circuit and electrion device: secondary coil L2, high voltage silicon rectifier stack D2, electrocution-proof protection resistance R 3 and electrion device by impulse type booster transformer B are formed; The termination circuit ground GND of impulse type booster transformer B secondary coil L2; The negative pole of another termination high voltage silicon rectifier stack D2 of impulse type booster transformer B secondary coil L2 connects the electrion device after the positive pole serial connection electrocution-proof protection resistance R 3 of high voltage silicon rectifier stack D2.

The 12V dc power anode links to each other with circuit anode VCC, and the 12V dc power cathode links to each other with circuit ground GND.

Description of drawings

Accompanying drawing 1 is the circuit working schematic diagram of electronic air purifier; B is the impulse type booster transformer in the accompanying drawing 1.

The specific embodiment

Specification requirement according to the components and parts of the circuit working schematic diagram of the electronic air purifier shown in the accompanying drawing 1 and description of drawings and the following stated is implemented, and can realize this utility model.

The selection of components and parts and technical parameter

IC1 is a power switch circuit, and the model of selecting for use is TWH8751, and it adopts the TOP-220 encapsulation; Its internal circuit is by input stage; Buffer amplifier and Darlington power output stage are formed, and are provided with feedback control loop and subtract the flow pattern output protection circuit, and it has 5 pins;

D1 is a high voltage silicon rectifier stack, and the technical parameter of selecting for use is 18kV;

The resistance of resistance R 1 is that 220 Ω, power are 1/4W; The resistance of resistance R 2 is 100K, and resistance R 3 is an electrocution-proof protection resistance, and power is 2W, and its resistance is 3.6～4.7M Ω;

C1 is an electric capacity of the dacron, and capacity is 0.01 μ F;

The 12V dc source, the selection work electric current is greater than the regulated power supply of 600mA.

Circuit production main points and circuit debugging

The making of impulse type booster transformer B: adopt the transformation of the way of 14 inch black and white television discrete line output transformers, vibration winding L 1 usefulness ￠ 0.6mm enamel-covered wire is flat around 45 circles, and secondary coil L2 uses the high voltage package of former black and white television line output transformer; If as selecting the integrated line output transformer transformation of the way for use, then machine volume is littler;

The making of electrion device: on the copper clad plate that is of a size of long 170mm * wide 40mm, bore 3 rounds, 16 holes of every row, every bore dia is 0.8mm.Require nickel plating pin length consistent, and tip point is good more more, pin is inserted in the hole one by one and welds, require each solder joint slick and sly; Attention: the lead-in wire of nearly ten thousand volts negative high-voltage end must use black and white television line output high-voltage connection;

The circuit of electronic air purifier is as long as the components and parts performance of using is intact; Annexation according to components and parts shown in the accompanying drawing 1 is welded; The physics wiring is conscientiously checked and check errorless after, the circuit of this device need not debugged and get final product operate as normal;

During circuit debugging, the resistance of adjustable resistance R2 makes circuitry reach the highest circuit debugging of promptly accusing of power saving, output voltage and accomplishes.

Claims

1. electronic air purifier, it comprises 12V dc source, self-excited oscillator circuit, negative high voltage rectification circuit and electrion device, it is characterized in that:

The self-excited oscillator circuit is made up of the vibration winding L 1 of power switch circuit IC1, resistance R 1, electric capacity of the dacron C1, resistance R 2 and impulse type booster transformer (B); The model that power switch circuit IC1 selects for use is TWH8751; The anodal VCC of the 5th foot connection circuit of power switch circuit IC1; The 1st foot of power switch circuit IC1 connects the end of electric capacity of the dacron C1 and an end of resistance R 2; The 3rd foot connection circuit ground GND of the other end of electric capacity of the dacron C1 and power switch circuit IC1; One end of the other end of the 4th foot connecting resistance R2 of power switch circuit IC1 and impulse type booster transformer (B) vibration winding L 1, the anodal VCC of other end connection circuit of impulse type booster transformer (B) vibration winding L 1;

Negative high voltage rectification circuit and electrion device are made up of secondary coil L2, high voltage silicon rectifier stack D2, electrocution-proof protection resistance R 3 and the electrion device of impulse type booster transformer (B); The termination circuit ground GND of impulse type booster transformer (B) secondary coil L2; The negative pole of another termination high voltage silicon rectifier stack D2 of impulse type booster transformer (B) secondary coil L2 connects the electrion device after the positive pole serial connection electrocution-proof protection resistance R 3 of high voltage silicon rectifier stack D2.

2. electronic air purifier according to claim 1 is characterized in that: the 12V dc power anode links to each other with circuit anode VCC, and the 12V dc power cathode links to each other with circuit ground GND.