CN2121957U

CN2121957U - Refrigerator electronic deodorising sterilizing device

Info

Publication number: CN2121957U
Application number: CN 92212470
Authority: CN
Inventors: 龙建雄; 何颖妹
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-25
Filing date: 1992-03-25
Publication date: 1992-11-18

Abstract

The utility model relates to an electronic deodorizing and sterilizing device for a refrigerator of which the circuit is composed of a half-wave rectifying circuit (1), a unijunction tube oscillating circuit (2), a thyristor pulse switching circuit (3) and a high-pressure discharge circuit (4) which can generate ozone (O-[3]). The electronic deodorizing and sterilizing device for a refrigerator is installed in a cold storage chamber of the refrigerator, and can work synchronously with a compressor of the refrigerator with the working power supply is supplied by an automatic temperature control switch of the refrigerator. The ozone gas which is created in the course of working can remove abnormal flavour in the refrigerator, can sterilize, and can preserve. So the electronic deodorizing and sterilizing device for a refrigerator is beneficial to protect the health of a user of the refrigerator. The circuit has the advantages of simple structure, reasonable design, reliable operation and low cost of manufacture. The utility model is suitable for refrigerators and all kinds of freezing refrigerator, and can be widely used for safe storage of articles which are easy to decay and deteriorate, such as food, etc.

Description

Refrigerator electronic deodorising sterilizing device

This utility model relates to the essential healthcare field of human lives, is meant that further using ozone carries out the device of deodoring and disinfecting to refrigerator inside.

Existing refrigerator is that dependence reduces a large amount of breedings of the temperature inside the box, inhibition microorganism and reaches the anti-corrosive fresh-keeping purpose.Usually the temperature of cold room is enlivened and reproductive status but still have some antibacterials to be under this temperature between 0 ℃-10 ℃.So, in the cold room food holding time long slightly, will be under the effect of antibacterial corrupt gradually and produce the foreign odor flavor, make that people's health is endangered.Although people have grasped the deodorization technology that adopts adsorber at present, its shortcoming is will often change chemistry to fill out agent, thereby can not match with refrigerator producer.Several electronic type refrigerator deodoring and disinfecting devices of patent applied for, generally be to adopt ozonator, or ozonator combined with Burdick lamp, but they are not because circuit structure is too complicated, damage components and parts exactly because circuit design is inconsiderate easily, all fail to be applied on the refrigerator at home.

The purpose of this utility model provides a kind of automatic deodoring and disinfecting device of electronics simple in structure and reasonable in design that can match with current refrigerator and use.

Referring to Fig. 1 this utility model electricity functional-block diagram, the solution of the automatic deodoring and disinfecting device of this electronics is that its circuit part is by half-wave rectifying circuit (1), unijunction transistor oscillating circuit (2), IGCT pulse-switching circuit (3) and can produce ozone (O ₃) high voltage discharge circuit (4) of gas forms.The annexation of these circuit and signal flow are to being, half-wave rectifying circuit (1) outfan provides dc supply and the electric pulse excitation energy is provided for respectively unijunction transistor oscillating circuit (2) and IGCT pulse-switching circuit (3), unijunction transistor oscillating circuit (2) is to IGCT pulse-switching circuit (3) transport pulse triggering signal, and high voltage discharge circuit (4) is accepted the electric impulse signal of IGCT pulse-switching circuit (3) output and converted the electrion energy output to.

This utility model with foregoing circuit structure is with the supporting use of refrigerator the time, it should be installed in the cold room of refrigerator, and the 220V alternating current power supply in the refrigerator is connected to the input of half-wave rectifying circuit of the present utility model (1) through the temperature detect switch (TDS) of refrigerator self, when the compressor start of refrigerator is worked, the 220V power supply is given half-wave rectifying circuit (1) power supply through temperature detect switch (TDS), so high voltage discharge circuit (4) produces ozone (O ₃) gas.Ozone (O ₃) chemical characteristic very active, be easy to generate an oxygen molecule (O ₂) and an oxygen atom (O), this oxygen atom (O) easily with refrigerator in foreign odor flavor gas generation oxidation, thereby removed the foreign odor flavor in the refrigerator, reached the effect that purifies air, simultaneously oxygen atom (O) also be easy to refrigerator in noxious bacteria produce Oxidation, can play the effect of sterilization again.

This utility model circuit structure is simple, and is cheap for manufacturing cost, reasonable in design, uses reliably long working life.During the supporting use of it and refrigerator, directly utilize power supply and temperature automatically controlled switch in the refrigerator, thus easy to install and use, need not the user and operate separately.Its employing enlarges and the perfect use energy supply of current refrigerator, the health that is of value to huge numbers of families' refrigerator user, this device can be contained in electric refrigerator and all deep freezer inside, is widely used in food, medicine, chemicals and the safe storage of other perishable deteriorating item long period.

Below in conjunction with drawings and Examples this utility model is further described.

Fig. 1 is this utility model circuit block diagram;

Fig. 2 is a kind of physical circuit schematic diagram of Fig. 1.

Referring to Fig. 2, half-wave rectifying circuit (1) is by diode D, resistance R ₁And capacitor C ₁Form.The 220V alternating current power supply is given the input of half-wave rectifying circuit (1) by the temperature automatically controlled switch WCK of refrigerator in the refrigerator, so just can be when WCK closure (being compressor start), and this utility model keeps synchronous working.Unijunction transistor oscillating circuit (2) is by unijunction transistor BT, resistance R ₂To R ₄And capacitor C ₂Form.IGCT pulse-switching circuit (3) is made up of the primary coil of IGCT SCR and magnetic core booster transformer KB, and high voltage discharge circuit (4) is made up of secondary coil and the discharge plate DGB of magnetic core booster transformer KB.The impulse oscillation signal that unijunction transistor oscillating circuit (2) produces is from the first base stage b of BT ₁Give the control utmost point G of SCR, make SCR produce more powerful pulse signal, this pulse signal is elementary by the KB's that is in series with SCR, thus the secondary output high pressure of excitation KB and be added in the two ends of discharge plate DGB, make and produce ozone (O by ionic discharge between the pole plate ₃) gas.In Fig. 2 embodiment, in order to add strong production ozone (O ₃) effect, discharge plate DGB adopts E, F, four battery lead plates of M, N, makes three region of discharges that formation is in series between them.Also can be according to the needs of different occasions, select the battery lead plate of other quantity for use and form the region of discharge of other quantity.From Fig. 2 obviously as seen, separate with unijunction transistor oscillating circuit (2) between the control utmost point G of SCR and the rectification high pressure, this has just solved the problem of withstand voltage of this crux element of SCR, thereby makes the entire circuit reliable operation.〉

Claims

1, the automatic deodoring and disinfecting device of a kind of refrigerator electronics is characterized in that, circuit part is by half-wave rectifying circuit (1), unijunction transistor oscillating circuit (2), IGCT pulse-switching circuit (3) and can produce ozone (0 ₃) high voltage discharge circuit (4) of gas forms, half-wave rectifying circuit (1) outfan provides dc supply and electric pulse excitation energy for respectively unijunction transistor oscillating circuit (2) and IGCT pulse-switching circuit (3), unijunction transistor oscillating circuit (2) is to IGCT pulse-switching circuit (3) transport pulse triggering signal, and high voltage discharge circuit (4) is accepted the electric impulse signal of IGCT pulse-switching circuit (3) output and converted the electrion energy output to.

2, the automatic deodoring and disinfecting device of refrigerator electronics as claimed in claim 1 is characterized in that, half-wave rectifying circuit (1) is by diode D, resistance R ₁And capacitor C ₁Form, unijunction transistor oscillating circuit (2) is by unijunction transistor BT, resistance R ₂To R ₄And capacitor C ₂Form, IGCT pulse-switching circuit (3) is made up of the primary coil of IGCT SCR and magnetic core booster transformer K8, and high voltage discharge circuit (4) is made up of secondary coil and the discharge plate DGB of magnetic core booster transformer K8.

3, the automatic deodoring and disinfecting device of electronics as claimed in claim 2 is characterized in that, discharge plate DGB adopts E, F, four battery lead plates of M, N, makes three region of discharges that formation is in series between them.