CN2060953U

CN2060953U - Electronic disinfecting and freshness-preserving devices

Info

Publication number: CN2060953U
Application number: CN 89221333
Authority: CN
Inventors: 张贺
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-22
Filing date: 1989-12-22
Publication date: 1990-08-22

Abstract

The utility model relates to an electronic disinfecting and freshness-preserving device, comprising a casing and an internal circuit. The technical keys are that the electronic disinfecting and freshness-preserving device adopts a high voltage transformer which can make the 220 volts voltage converted to the high voltage; through the secondary discharge of the discharge device; the air which can continuously enter into a generator generates the high concentration ozone to obtain the sterilizing purpose. When the freshness-preserving is conducted; the voltage is lowered; the ozone in the generator can reduce; the anion can increase, and accordingly, the freshness-preserving purpose can be obtained. The circuit is split into four portions: a power supply portion, a control portion, a high pressure portion, and a generator portion. The utility model has the advantages of simple structure, low cost, electricity saving, good sterilizing effect, etc., and the electronic disinfecting and freshness-preserving device can commonly have the sterilizing and the freshness-preserving functions.

Description

Electronic disinfecting and freshness-preserving devices

The utility model relates to a kind of electronic sterilization preservation device, is applicable to the occasion of disinfectant fresh-keepings such as hospital, clinic, diet service trade and family's tableware, vessel, food, vegetables.

Existing sanitary tableware disinfection cabinet mainly contains the chlorination equipment that methods such as far infrared sterilization, disinfection by ultraviolet light, microwave sterilization, moise-heat sterilization are made, and far infrared disinfection cabinet efficient is low, can not plastic products be sterilized, and Ceramic vessel is had damage; Ultraviolet disinfection cabinet cost height, tableware are hidden part can not sterilize the power consumption height; Microwave sterilization cost height, Disinfection Effect is not good, and microwave is harmful; Moise-heat sterilization cost height, floor space is big, needs to be equipped with proprietary boiler room, and the few user of vessel is unsuitable for sterilizing.

The purpose of this utility model is to overcome above-mentioned shortcoming of the prior art, designs a kind of ozonization, fresh-keeping device.

Key problem in technology of the present utility model is that employing electrion and the air effect generation ozone that constantly feeds discharge space reach sterilisation purpose, changes voltage and current intensity, makes air generation ionization; Produce anion and reach fresh-keeping purpose.

Accompanying drawing 1 is an electronic sterilization preservation device structure chart; Fig. 2 is control, power supply circuits schematic diagram; Fig. 3 is high-tension circuit figure, and Fig. 4 is the electric discharge device structural representation.

In conjunction with the accompanying drawings, narrate content of the present utility model:

Structure as shown in Figure 4, the utility model can be made different size as required.Housing divides two-layer, and its skin can be made by metal or plastics, and internal layer is made of plastics, and disinfection cabinet inside is divided into several layers, is used to place tableware, the vessel that need sterilization or needs fresh-keeping food, vegetables, fruit etc.Shell upper is provided with the regulation and control turn-knob, and these turn-knobs are connected with components and parts in the circuit.

Show that as Fig. 2 to Fig. 4 electronic sterilization described in the utility model, preservation device circuit are divided into four parts: power supply circuits, control circuit, high-tension circuit and generator.

Control circuit mainly is made up of K switch 1 and K2, K1 is the sterilization control switch, K2 is fresh-keeping control switch, light-emitting diode D4 is the sterilization indication, and D5 is fresh-keeping indication, resistance R 4 and R5 polyphone, diode D4 and resistance R 4 parallel connections, the other end of R4 links to each other with AC power, and the other end of R5 links to each other with K switch 2; Diode D5 and resistance R 7 parallel connections, resistance R 6 and R7 series connection, the other end of resistance R 7 links to each other with K switch 1, and the other end of R6 links to each other with AC power, and resistance R 4, R5 and R6, R7 are respectively applied for step-down, guarantee the power supply of light-emitting diode D4 and D5.Timer H is connected with K switch 1, is used for the control of disinfecting time.

220 volts, 50 He Zhi alternating currents, insert the input of transformer B through control circuit, the output of power transformation device B links to each other with bridge rectifier D, capacitor C and bridge rectifier D also connect, be used for filtering, pressurizer G links to each other with K switch 2, is used for guaranteeing when fresh-keeping to the low voltage of high-tension circuit for the 12-13.5 volt.Diode D6 is serially connected between the input of AC power and transformer B, when K switch 1 closure, when K2 opens, alternating current is behind diode D6, and voltage is reduced to 110 volts, through transformer B and bridge rectifier D rectification, capacitor C filtering, pressurizer G voltage stabilizing, to the high-tension circuit power supply, voltage is the 12-13.5 volt; When K2 opens, when K1 was closed, 220 volts alternating currents were through the direct input transformer of K1, and again through bridge rectifier D rectification, capacitor C filtering is that 24-27 lies prostrate to the high-tension circuit power supply.

High-tension circuit is formed in parallel by three identical high-tension transformer T1-T3.The input of three transformer T1-T3 has three taps respectively, tap 1 links to each other with the negative electrode of diode D1-D3 respectively, tap 2 is connected with power supply circuits, tap 3 links to each other with the collector electrode of triode BG1-BG3 respectively, corresponding and the resistance R 1-R3 parallel connection of capacitor C 1-C3, the anode of diode D1-D3 is corresponding respectively to be connected with resistance R 1-R3 one end, and the base stage of the triode BG1-BG3 corresponding other end with resistance R 1-R3 respectively is connected.Three high-tension transformer outputs are linked to each other with discharge tip A ', B ', a C ' of ozone generating-device by 3 of A, B, C through a diode respectively.The emitter of triode BG1-BG3 links to each other with the earth polar of ozone generating-device.

Ozone generating-device is by discharge end, high-pressure stage 1, secondary discharge tip body 2, earth polar 3 and adjustment bolt 4 are formed (seeing Fig. 4 and Fig. 1), tip body 2 and high-pressure stage 1 are fixing, be located between high-pressure stage 1 and the earth polar 3, there is a segment distance in tip body 2 and earth polar 3, adjust bolt 4 and are located at ozone generating-device outer wall side, link to each other with high-pressure stage 1, bolt 4 is adjusted in rotation, can change the distance between high-pressure stage 1 and the earth polar 3.

The course of work of the present utility model is: during sterilization, Closing Switch K1,220 volts alternating current is through transformer B transformation, bridge rectifier, capacitor filtering, become the direct current of 24-27 volt, respectively through the 2-3 of transformer T1-T3 winding, be added to the collector electrode of triode BG1-BG3, in order to obtain high oscillating voltage, form positive feedback through the diode D1-D3 and the resistance R 1-R3 of 1-2 winding, the capacitor C 1-C3 that is connected in parallel on the resistance R 1-R3 is lifting and coupling capacitance, the conversion efficiency that can improve oscillating tube.The 4-5 winding is the trailing edge that utilizes oscillator signal, voltage is promoted, because the △ u/ △ t variate of trailing edge is very big, so at the dc high voltage after high-tension transformer T1-T3 rectification, send into ozone generator by A, B, 3 of C respectively, A ', B ', 3 once discharges of C ', again through high-pressure stage 1 by tip body 2 secondary discharges, with the air effect of continuous feeding, produce high-concentrated ozone, play the effect of sterilization, sterilization.

When fresh-keeping, 220 volts, the alternating voltage of 50Hz cuts through diode D6 series connection.Half voltage of spending the cycle is added to transformer B, the secondary like this direct voltage behind rectifying and wave-filtering also drops to the 12-13 volt thereupon, this voltage is exported the adjustable dc voltage of 3～9V after the pressurizer step-down, be added to the collector electrode of triode BG1-BG3, because service voltage descends, so ozone concentration descends, and the negative ion concentration that forms increases relatively, makes food in the casing or vegetables, fruit reach fresh-keeping purpose.

Be compared with existing technology, the utlity model has simple in structurely, cost is low, can sterilize, again can be fresh-keeping, and sterilization, the advantages such as good refreshing effect.

Claims

1, a kind of electronic sterilization, preservation device by housing, are located at the adjusting turn-knob that is connected with control circuit on the housing, and the screen work composition that is divided into level in the device, it is characterized in that:

A, control circuit mainly are made up of sterilization control switch K1 and fresh-keeping control switch K2, light-emitting diode D4 and resistance R 4 parallel connections, resistance R 4 and R5 series connection, the other end of R4 links to each other with AC power, and the other end of R5 links to each other with K switch 2, diode D5 and resistance R 7 parallel connections, resistance R 6 and R7 series connection, the other end of resistance R 7 links to each other with K switch 1, and the other end of R6 links to each other with AC power, timer H is connected with K switch 1

The output of transformer B links to each other with bridge rectifier D in b, the power supply circuits, capacitor C and bridge rectifier D parallel connection, pressurizer G links to each other with K switch 2, the input of transformer B is connected with K2 with K switch 1, diode D6 is serially connected between the input and AC power of transformer B, when the closed K2 of K1 opens, to 220 volts of alternating currents of transformer B input, the output voltage of power supply circuits is the 24-27 volt, the K2 closure, when K1 opens, through diode D6 to transformer-supplied, the output voltage of power supply circuits is the 12-13.5 volt

C, high-tension circuit is formed in parallel by three identical high-tension transformer T1-T3, the input of three transformer T1-T3 has three taps respectively, tap 1 links to each other with the negative electrode of diode D1-D3 respectively, tap 2 links to each other with power supply circuits, tap 3 respectively with triode BG1-BG3 parallel connection, the anode of diode D1-D3 is connected with the end of resistance R 1-R3 respectively, the base stage of the triode BG1-BG3 corresponding other end with resistance R 1-R3 respectively is connected, the output of T1-T3 respectively through a diode by A, B, a discharge tip A ' B ' of 3 of C and ozone generating-device, C ' links to each other, the emitter of triode BG1-BG3 links to each other with the earth polar of ozone generating-device 3

The tip body 2 of d, ozone generating-device and high-pressure stage 1 are fixing, are located between high-pressure stage 1 and the earth polar 3, adjust bolt 4 and are located at ozone generating-device outer wall side, link to each other with high-pressure stage 1, and bolt 4 is adjusted in rotation, can change the distance between high-pressure stage 1 and the earth polar 3.