JPH0240475A - Refrigerator with deodorizing function - Google Patents

Abstract

PURPOSE:To generate ozone efficiently excluding unnecessary conduction of a high voltage generator and contrive electric power saving by a method wherein the conduction of the high voltage generator is controlled by a signal in accordance with the detected concentration of ozone in a refrigerator to generate ozone. CONSTITUTION:An ozone generating unit 36 is arranged near the outlet port 35 of a ventilating passage 16 communicated with a refrigerating chamber 9 from a fan 14 in the refrigerator. A controller 44 is constituted of an ozone concentration judging means 45, judging the concentration of ozone by a signal from an ozone detecting means 43 detecting the ozone in the refrigerator, and a high voltage generating and driving means 46, controlling the conduction of the high voltage generator of an ozone generating unit 36 based on the concentration judged by the judging means 45. The high voltage generating and driving means 46 is driven only when the concentration, judged by the ozone concentration judging means 45, is reduced to a value lower than a predetermined value. According to this method, unnecessary conduction of the ozone generator may be excluded and ozone may be generated efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator with a deodorizing function that removes ozonized air, deodorizes the inside of the refrigerator, and maintains and improves the freshness of food.

BACKGROUND OF THE INVENTION In recent years, refrigerators have been proposed in which an ozone generator is installed in a refrigerator compartment or a freezer compartment to deodorize the interior of the refrigerator.

An example of the conventionally proposed refrigerator mentioned above will be described below with reference to the drawings.

FIG. 6 is a sectional view of a conventional refrigerator. Reference numeral 1 denotes a three-door refrigerator body, which is composed of an outer box 2, an inner box 3, and a urethane foam insulation material 4 formed in the gap between the two.
Three doors 5.6.7 are arranged in the front opening of. The three doors are respectively connected to the freezer compartment 8 of the refrigerator main body 1. A refrigerator compartment 9° is arranged corresponding to the opening of the vegetable compartment 10.

Inside the partition wall surrounded by the bottom plate 11 of the freezer compartment 8 and the top plate 12 of the refrigerator compartment 9, there is an evaporator 13 and an internal fan 14 behind it.
have. In addition, the back of the freezer compartment 8 and the refrigerator compartment 9
Ventilation passages 15 and 16 are formed at the upper back side of the evaporator 13 to introduce cooling air from the evaporator 13 into each chamber. 1
7 is a compressor. A deodorizing device 18 is placed at the rear of the refrigerator compartment 9. Next, the configuration of the deodorizing device 18 will be explained.

FIG. 6 is an enlarged sectional view of the deodorizing device 18.

In FIG. 6, 19 is a case, and 2Q and 21 are internal air A (including odor) provided through the case 19.
An ozone generator 22, an ozone reaction chamber 23, and an ozone decomposition filter 24 are arranged in this order from the inflow hole 2o side at the inflow hole and the deodorized air discharge hole.

The ozone generating liquid @ 22 is supplied to a flat high voltage electrode 27 made of a nutless steel metal 26 and a borosilicate glass dielectric 26 bonded with a silicone adhesive, and a flat low voltage electrode made of a nutless steel metal. The electrode 28, the air gap 29 interposed between the dielectric 26 of the high voltage electrode 27 and the low voltage electrode 28, and the support frame 30 that supports the picture electrode.
It is composed of. And the ozone generator 2
2. A high voltage generator 32 for the ozone generator 22 is disposed at a location separated by the ozone decomposition filter 24 and the partition plate 31. 33 is a connection cord that connects the ozone generator 22 and the high voltage generator 32.

The operation of the refrigerator configured as described above will be explained below using FIG. 7. The freezer compartment 8, the refrigerator compartment 9. Various foods are stored in the vegetable compartment 10, and each food is maintained at an appropriate temperature. However, if the temperature in each compartment rises approximately 1 to 2 degrees Celsius above the set temperature due to opening or closing of the refrigerator door, etc. The compressor 17 is operated by a thermoswitch (not shown), the evaporator 13 is cooled by the circulation of the Fronganese refrigerant, and the internal fan 14 is used to cool the evaporator 13 through the ventilation passage 15.16. The cold air flows into the freezer compartment 8 and the refrigerator compartment 9, respectively.

The ozone generator 22 operates in synchronization with the operation of the compressor 17 as shown in FIG. 7(a), and the circulating cool air (
In other words, when the indoor air A (containing odor) flows into the deodorizing device 18 through its inflow hole 20, and a pulp-like high voltage is applied between the high voltage electrode 27 and the low voltage electrode 28 from the high voltage generator 32, the voltage between the two electrodes increases. An electric discharge is generated, the oxygen contained in the passing indoor air A is changed into ozone, and the ozone-containing air is converted into highly concentrated ozonized air, and malodorous components are decomposed in the ozone reaction chamber 23.

Here, unreacted ozone is removed from the ozone decomposition filter 2.
4, it is decomposed into oxygen and discharged through the discharge hole 21 to the refrigerator compartment 9 as shown by arrow B in FIG. Or again,
The ozone generator 22 was operated in synchronization with the door 6 of the refrigerator compartment 9 and the door 5 of the freezer compartment 8, as shown in FIG. 7(b), and as shown in FIG. 7(C). It was operated by a timer (not shown) installed inside the refrigerator.

Problems to be Solved by the Invention However, with the above configuration, the ozone generator operates regardless of the ozone concentration in the refrigerator, so there is a problem that efficient ozone generation cannot be performed.

In view of the above problems, the present invention provides a refrigerator with a deodorizing function that operates an ozone generator only when the ozone concentration is low and can efficiently generate ozone.

Means for Solving the Problem In order to achieve this object, the refrigerator with a deodorizing function of the present invention includes an ozone generator installed in the refrigerator, a high voltage generator applied to the ozone generator, and an ozone generator installed in the refrigerator. an ozone detection means for detecting the ozone concentration, an ozone concentration determination means for determining the ozone concentration based on the signal from the ozone detection means, and a high voltage generation drive means for controlling energization to the high voltage generation device based on the determined concentration. It consists of a control device.

Effect: With this configuration, the ozone concentration inside the refrigerator is detected, and the power supply to the high voltage generator is controlled using a signal according to the concentration, eliminating unnecessary power supply, resulting in efficient ozone generation. .

EXAMPLE Hereinafter, a refrigerator according to an embodiment of the present invention will be described with reference to the drawings. Components that are the same as those in the conventional example are given the same numbers, and their explanations will be omitted.

In FIGS. 1 and 2, reference numeral 34 denotes the refrigerator body of the present invention, and an ozone generator 36 is disposed near the outlet 35 of the ventilation passage 16 leading from the internal fan 14 to the refrigerator compartment 9. 37 is a case, 38 is an inlet for air in the refrigerator from the ventilation passage 16, which is bored in the case 37, and 38' is an outlet for deodorized air. From the inlet 38 side, a high voltage generator 39, an ozone generator 40, an ozone decomposition filter 41
, a deodorizing fan 42 is provided. 43 is an ozone detection means for detecting ozone inside the refrigerator. Reference numeral 44 denotes a control device that includes an ozone concentration determining means 46 that determines the concentration based on the signal from the ozone detecting means 43, and a high voltage generation drive means 46 that controls energization to the high voltage generator 39 based on the determined concentration. It is configured. A covered electric wire 47 connects the high voltage generator 39 and the ozone generator 4o.

The operation of the refrigerator configured as above will be explained. The ozone generator 4o is the high voltage generator 39.
When a high voltage is applied, a discharge occurs and ozone is generated in the surrounding area. The generated ozone is transferred to the internal fan 1.
4 deodorizes the odor components in the warehouse through forced circulation, and the remaining ozone is decomposed by the ozone decomposition filter 41.

A control flowchart of the ozone generator 36 will be explained with reference to FIG. At step 101 in FIG. 3, the ozone concentration determining means 45 determines the ozone concentration d and compares it with a preset value. Dl If it's big, step 1
Proceed to 06. In step 105, the power supply to the high voltage generator is turned off and the process proceeds to step 106. In step 106, after waiting for a certain time safe, step 1
Return to 01.

If pd is not larger than Dl in step 101, y
, proceed to step 102. In step 102, it is compared with another preset value D2 (Dl>D2), and if pd is smaller than D2, the process proceeds to step 103. In step 103, continuous high voltage application is started in the energization pattern 1 shown in FIG. 4(a), and the process proceeds to step 106. If the result of step 102 is d≧D2, the process proceeds to step 104. In step 104, high voltage 0N10FF energization is started in the energization pattern 2 shown in FIG. 4(b), and the process proceeds to step 1o6.

According to the above control flowchart, the energization state as shown in FIG. 4(0) is established, and the energization is efficiently carried out according to the ozone concentration.

As described above, according to this embodiment, the ozone detection means 43 for detecting ozone in the refrigerator is provided in the refrigerator, and the concentration is determined by the diosine concentration determination means 45 based on the signal from there, and the ozone generator 36 By supplying electricity, efficient ozone generation can be achieved and power savings can be achieved. Also,
Since the time for which electricity is applied to the ozone generator per unit period is shortened, the life of the ozone generator can be extended.

Effects of the Invention As described above, the present invention includes an ozone generator installed in a refrigerator, a high voltage generator that generates a high voltage to be applied to the ozone generator, and an ozone detection means that detects ozone in the refrigerator. and a control device comprising ozone concentration determining means for determining ozone concentration based on the signal from the ozone detecting means and high voltage generation drive means for controlling energization to the high voltage generation device based on the determined concentration. As a result, the power supply to the ozone generator is controlled according to the decrease in ozone concentration due to the decomposition and natural decomposition of odor components in the refrigerator, so that ozone can be efficiently generated and power can be saved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the ozone generator shown in FIG. 1, FIG. 3 is a control flowchart for energizing the ozone generator, and FIG. A time chart showing the energization status of the ozone generator, -
FIG. 6 is a sectional view of a conventional refrigerator, FIG. 6 is an enlarged sectional view of the deodorizing device shown in FIG. 5, and FIG. 7 is a diagram showing the energized state of the ozone generator in the conventional example. 39... High voltage generator, 40... Ozone generator, 43... Ozone detection means, 44...
. . . Control device, 45 . . . Ozone concentration determination means, 46 . . . High voltage generation drive means. Name of agent: Patent attorney Shigetaka Awano and one other person
Oson cane knowledge f receiving 4≠ --- Enlightenment (4p 4 % ft 45 - Oduso Elegy return judgment child actor 4 - High amount J5 generation W acting child actor (go 2. n (C) 3q - - Kougo Hoshuko 1 Wa°-Saizon!i!8-.! Figure Figure Figure (li) 10,000 million/Z

Claims (1)

[Claims] An ozone generator installed in the refrigerator, a high voltage generator that generates a high voltage to be applied to the ozone generator, an ozone detection device that detects ozone in the refrigerator, and an ozone detection device that detects ozone based on a signal from the ozone detection device. A refrigerator with a deodorizing function, comprising: a control device comprising an ozone concentration determining means for determining the ozone concentration; and a high voltage generation drive means for controlling energization to the high voltage generator based on the determined concentration.