JPH034277Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a deodorizing device for food storages such as refrigerators and constant temperature storages.

[Prior art]

In general, when food is stored in a refrigerator, various odors are emitted from the food, which can make people feel disgusted when the refrigerator door is opened, or the odors of other foods may transfer to the stored food, spoiling the flavor of the food. There were some drawbacks. Conventionally, activated carbon was placed inside the refrigerator and its adsorption properties were used to remove odors from inside the refrigerator. It is difficult to judge whether the activated carbon has reached the saturated adsorption amount or not, and the activated carbon has to be replaced every short period of time.

〔the purpose〕

The present invention aims to provide a deodorizing device for food storage that is small and lightweight and can provide a stable deodorizing effect, and is particularly concerned with improving the ozone reaction chamber.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained based on the drawings. As shown in Figs. 2, an ozone generator 3, an ozone reaction chamber 4, and an ozone decomposition device 5 made of an ozone decomposition filter that is removably fitted in the vertical direction are arranged in order from the inlet hole 1 side. be.

The ozone generator 3 includes a flat high voltage electrode 9 formed by molding a stainless steel metal plate 6 into an epoxy resin dielectric 7, and a flat high voltage electrode 9 made of stainless steel metal.
, a flat low-voltage electrode 10 made of stainless steel metal, and an air gap 11 interposed between the dielectric 7 of these high-voltage electrodes 9 and the low-voltage electrode 10;
It is composed of a support frame 12 that supports both electrodes, and is used as an air supply device for generating air flow between the inflow hole 1 and the discharge hole 2. For example, a food storage deodorizing device is installed between the decomposition device 5 and the discharge hole 2. A motor M-driven fan 13 is provided inside (or outside) the device, and a high voltage generator 15 for the ozone generator 3 is provided upstream of the ozone generator 3 .

Reference numeral 18 denotes a partition plate installed between the ozone generator 3 and the ozone decomposition device 5, made of an electrically insulating material, around which the mixed gas from the ozone reaction chamber 4 is directed to the ozone decomposition device 3 side. A gap 19 for guiding is formed. The partition plate 18 is for preventing a discharge phenomenon between the high voltage electrode 9 of the ozone generator 3 and the ozone decomposition device 3 (activated carbon filter).

In FIG. 1, 16 is a power plug, and 17 is a fuse. Also Juan 13
is interposed between the downstream side of the air flow of the ozone decomposition device 5 and the discharge hole 2.

The electric circuit of this food storage deodorizing device is constructed as shown in FIG. That is, the commercial AC power supply AC includes a motor M of the fan 13, a transformer T for generating a high voltage between the high voltage electrode 9 and the low voltage electrode 10 of the ozone generator 3, and a resistor R.
1, R2, R3, capacitors C1, C2, thyristor SCR, and diodes D1, D2 are connected.

Next, to explain the operation, in FIG. 1, the fan 13 is
The air taken into the refrigerator passes through an air gap 11 between a high-voltage electrode 9 and a stainless-steel metal low-voltage electrode 10, which are made of plate-shaped stainless steel metal molded with an epoxy resin dielectric 7. When doing so, high voltage generator 1
A stable silent discharge is generated by the high voltage supplied from 5, and the oxygen contained in the air (odor) in the refrigerator is changed into ozone (O ₃ ), which further reacts with malodorous components in the ozone reaction chamber 4. However, unreacted ozone is oxidized and removed by the ozone decomposition device 5, and this treated air passes through the fan 13 and is discharged from the exhaust hole 2 into the refrigerator. In the above, as shown in the electric circuit of the high voltage generator 15 in FIG.
Capacitor C2 is charged via resistor R1 and diode D1 during the positive half cycle of the sinusoidal voltage supplied by R1. Next, during the negative half cycle, capacitor C1 is charged via resistor R2,
When the capacitor C2 reaches the switching voltage of the thyristor SCR, a gate current flows through the resistor R3, current flows through the high voltage transformer T, and a pulsed high voltage is generated on the secondary side of the high voltage transformer T.
10, ozone is generated by discharge.

The food storage deodorizing device of the above embodiment has the following effects.

(b) Since the ozone decomposition device (activated carbon filter) 5 is conductive, if the ozone decomposition device 5 and the high voltage electrode are too close to each other, a phenomenon occurs in which electric discharge occurs between the high voltage electrode 9 and the ozone decomposition device 5. However, by providing the insulating partition plate 18 in the ozone reaction chamber 4, the distance between the high voltage electrode 9 and the ozone decomposition device 5 can be shortened, and the device can be made smaller.

(b) Activated carbon has an excellent initial deodorizing effect and then rapidly decreases, but the deodorizing effect of the food storage deodorizing device of the present invention is stable.

(c) By replacing the filter ozone decomposition device 5 every long period, it can be used semi-permanently.

(d) The entire device is small, lightweight, and consumes low power.

(e) Excellent bactericidal action.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

〔effect〕

Since the present invention is constructed as described above, it is possible to obtain an efficient and stable deodorizing effect using ozone, and also to expect a sterilizing effect due to the ozone, thereby obtaining a deodorizing device that is also hygienically good. Of course, by arranging a partition plate made of electrically insulating material between the ozone generator and the ozone decomposition device, unnecessary discharge phenomena between the two can be eliminated, and the distance between the two can be minimized. This has the remarkable effect that the entire device can be designed to be small and compact.

[Brief explanation of drawings]

The drawings show a deodorizing device for food storage according to an embodiment of the present invention. Fig. 1 is an overall perspective view showing the case in a see-through state, Fig. 2 is a partially cutaway plan view of Fig. 1, and Fig. 3 is an electrical A circuit diagram is shown. A... Case, 1... Inner air inflow hole, 2...
Exhaust hole, 3... Ozone generator, 4... Ozone reaction chamber, 5... Ozone decomposition device, 9... High voltage electrode,
10...Low voltage electrode, 13...Fan, 18...Partition plate.

Claims (1)

[Scope of utility model registration request] It is installed in an air flow path between a case formed with an internal air inflow hole and an exhaust hole, and a high voltage electrode and a low voltage electrode to generate ozone. A deodorizing device for food storage, which is equipped with an ozone generator, an ozone reaction chamber in which the ozone generated by the ozone generator reacts with malodorous components, and an ozone decomposition device located in front of the ozone reaction chamber. A deodorizing device for food storage, characterized in that a partition plate made of electrically insulating material is arranged between the ozone generator and the ozone decomposition device.