JPH1028838A - Deodorizing antibacterial apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high performance deodorizing antibacterial apparatus which is inexpensive, has a simple mechanism, and does not need maintenance for a long period by driving a fan for supplying air to a deodorizing antibacterial catalyst consisting of manganese dioxide, metal oxide, etc. SOLUTION: In an air passage 21 for circulating air in a refrigerator, air is introduced from an air suction port 22 and discharged from an air discharge opening 23, and a fan 24 is driven by a driving device 25. A deodorizing antibacterial catalyst 30 is set in the passage 21. The catalyst 30 is composed at least of manganese dioxide, oxide of copper, iron, etc., active carbon, zeolite, and a binder. When air containing offensive odor components is passed through the catalyst 30 by the fan 24, the components are adsorbed first by active carbon and zeolite to be deodorized promptly by the catalytic action, and bacteria are removed simultaneously. In this way, deodorizing and antibacterial effects can be attained very simply.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing antibacterial device having a function of removing malodorous components and bacteria and mold spores floating in the air.

[0002]

2. Description of the Related Art Conventionally, activated carbon has been mainly used as an adsorbent for removing malodorous odor components existing in a limited space such as a refrigerator. However, the adsorption capacity of activated carbon is limited, and heat may be applied to restore the adsorption capacity,
It is necessary to devise such means as irradiating ultraviolet rays in the presence of a photocatalyst.

[0003] On the other hand, there is an antibacterial filter having an antibacterial function for removing various bacteria and the like floating in the air, but it is difficult to apply the filter to a home refrigerator due to the resistance to ventilation. Not done.

[0004] In order to perform deodorization and antibacterial action in a refrigerator, a degreasing filter supporting an oxide of a transition metal element as a catalyst component as disclosed in Japanese Patent Application Laid-Open No. 5-203336, for example, has been proposed. There is a type in which a deodorizing antibacterial device configured by opposing and combining an antibacterial filter carrying an inorganic material containing silver or a silver compound is provided with a bypass circuit in an air circulation air passage of a refrigerator compartment.

[0005]

However, a deodorizing filter supporting the above-mentioned oxide of a transition metal element as a catalyst component and an antibacterial filter supporting silver or an inorganic material containing a silver compound are opposed to each other and combined. In this case, the structure becomes complicated, and the airflow resistance increases due to the combination of both filters.In fact, the air inside the refrigerator containing the odor passes through the bypass circuit without passing through the deodorizing and antibacterial device with the high airflow resistance, so that the air is deodorized. There is a problem that an antibacterial effect cannot be obtained.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a high-performance deodorizing antibacterial device which is extremely simple in structure.

[0007]

In order to achieve this object, the deodorizing antibacterial device of the present invention comprises at least manganese dioxide and at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium. A deodorizing antibacterial catalyst comprising a substance, activated carbon, zeolite and a binder is used.

Thus, a high performance deodorizing antibacterial device which is extremely simple in structure can be provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a deodorizing antibacterial catalyst comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder. The medium, a fan that blows air to the deodorizing antibacterial catalyst, and a drive device that drives the fan constitute a deodorizing antibacterial device.

[0010] With this configuration, when the air containing the malodorous component passes through the deodorizing antibacterial catalyst by the fan driven by the driving device, it is adsorbed and adsorbed on the activated carbon and zeolite acting as an adsorbent in the deodorizing antibacterial catalyst layer. The substance is immediately changed to a substance having a low odor intensity or deodorized by the catalytic action of manganese dioxide and at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium. In addition, bacteria and mold spores floating in the air, when passing through the deodorizing antibacterial device, manganese dioxide in the deodorizing antibacterial catalyst layer and copper, iron, nickel, cobalt, platinum, at least selected from the group of palladium It is sterilized by one or more oxides. Therefore, a high-performance deodorizing antibacterial device that is inexpensive, has a very simple mechanism, and does not require maintenance for a long time can be obtained.

Further, at least manganese dioxide and copper,
Iron, nickel, cobalt, platinum, a deodorizing antibacterial catalyst comprising at least one or more oxides selected from the group of palladium, activated carbon, zeolite and a binder, a fan for blowing the deodorizing antibacterial catalyst, and the fan A driving device for driving, and a control device for controlling the driving device, wherein the control device drives the fan for a predetermined time at predetermined time intervals, and a deodorant antibacterial for a predetermined time at predetermined time intervals. Since air is blown to the catalyst, energy can be saved, and antibacterial antibacterial in the air can be periodically performed.

Also, at least manganese dioxide and copper,
Iron, nickel, cobalt, platinum, a deodorizing antibacterial catalyst comprising at least one or more oxides selected from the group of palladium, activated carbon, zeolite and a binder, a fan for blowing the deodorizing antibacterial catalyst, and the fan A driving device for driving, a control device for controlling the driving device, and an odor sensor, wherein the control device drives the fan in accordance with an output of the odor sensor, and controls the fan in accordance with an output of the odor sensor. Air to the deodorizing antibacterial catalyst, so that when the smell is weak, the air can be stopped to save energy, and when the smell becomes strong, air is sent to the deodorizing antibacterial catalyst to efficiently deodorize antibacterial in the air. Can be implemented well.

Further, at least manganese dioxide and copper,
Iron, nickel, cobalt, platinum, a deodorizing antibacterial catalyst comprising at least one or more oxides selected from the group of palladium, activated carbon, zeolite and a binder, a fan for blowing the deodorizing antibacterial catalyst, and the fan A driving device for driving, a control device for controlling the driving device, and a temperature sensor, wherein the control device drives the fan in accordance with the output of the temperature sensor, and controls the temperature and odor. Uses the strength of fertility to send air to the deodorizing antibacterial catalyst according to the output of the temperature sensor.When the temperature is low, the smell is weak and when the bacterial reproductive power is weak, stop blowing to save energy. When the temperature rises and the odor becomes strong and the reproductive power of the bacteria becomes strong, the air is sent to the deodorizing antibacterial catalyst to efficiently carry out deodorizing antibacterial in the air.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a deodorizing antibacterial device according to the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a vertical sectional view of a main part of a refrigerator equipped with a deodorizing and antibacterial device according to a first embodiment of the present invention, and FIG. It is.

In FIG. 1, 1 is a refrigerator, 2 is a freezing room, 3 is a door of a freezing room, 4 is a refrigerator room, and 5 is a door of a refrigerator room. 6 is a fan for circulating cool air, 7 is a motor for moving the fan for circulating cool air, and 8 is an evaporator. Numeral 9 is a cool air circulation air passage in the refrigerator compartment, and part A is a cool air return suction port. Reference numeral 20 denotes a deodorizing antibacterial device provided in the refrigerator compartment.

In FIG. 2, reference numeral 21 denotes an air passage for circulating air in the refrigerator room, 22 denotes an air inlet, and 23 denotes an air outlet. The blower fan 24 is driven by a drive device 25, and air flows in the direction of arrow B in FIG. Numeral 30 denotes a deodorizing antibacterial food medium mounted in the air circulation air passage 21.

FIG. 3 is an external perspective view of a honeycomb-shaped deodorizing antibacterial catalyst 30 of the deodorizing antibacterial device in the embodiment.
The air flows in the direction C in FIG.

FIG. 4 is a schematic view showing a deodorizing antibacterial catalyst layer of the deodorizing antibacterial catalyst body 30 in the embodiment.

In FIG. 4 (a), reference numeral 31 denotes a deodorizing and antibacterial catalyst layer for controlling the deodorizing and antibacterial action, and at least manganese dioxide and oxides such as copper, iron, nickel, cobalt, platinum and palladium alone or in combination. And a combination of
Water is added to a high silica zeolite having a silica / alumina ratio of 10 or more and a binder, kneaded, extruded into a honeycomb shape, dried and fired to form a deodorizing antibacterial catalyst layer 31
The deodorizing antibacterial catalyst body 30 is formed only by the above. FIG. 4 (b)
As shown in (1), the deodorizing antibacterial catalyst layer 31 may be formed on a honeycomb-shaped oxide carrier 32 by firing.

With this configuration, the air containing the malodorous component in the refrigerator compartment is supplied to the air suction port 22 of the deodorizing antibacterial device 20.
From the deodorizing antibacterial catalyst layer 31 of the deodorizing antibacterial catalyst 30, which is sucked by a blower fan driven by the driving device 25.
Activated carbon, which acts as an adsorbent, and high-silica zeolites having a silica / alumina ratio of 10 or more, are immediately adsorbed on manganese dioxide and copper, iron, nickel, cobalt, platinum, palladium, etc. The substance is changed to a substance having a low odor intensity or deodorized by the catalytic action.

Bacteria and fungal spores floating in the air pass through the deodorizing antibacterial catalyst 30 and manganese dioxide in the deodorizing antibacterial catalyst layer 31 and copper, iron, nickel, cobalt, platinum, palladium. The bacteria are eliminated by the antibacterial action of the transition metal.

As described above, the deodorizing antibacterial catalyst 30 comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder.
And a fan 24 for blowing the deodorizing antibacterial catalyst body 30;
By mounting the deodorizing antibacterial device 20 including the driving device 25 for driving the fan 24 in a refrigerator, a high performance deodorizing antibacterial device which has low airflow resistance, is inexpensive, has a very simple mechanism, and does not require maintenance for a long period of time. Can be provided.

It is needless to say that the same effect can be obtained when the deodorizing antibacterial device 20 is installed in a freezing room, a vegetable room or the like of a refrigerator.

The same effect can be obtained when the deodorizing antibacterial catalyst 30 is provided in the cool air return suction port A of the cool air circulating air passage of the refrigerator shown in FIG.

(Embodiment 2) Hereinafter, Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 5 is a longitudinal sectional view of a main part of a deodorizing antibacterial device according to Embodiment 2 of the present invention.

In FIG. 5, reference numeral 10a denotes a deodorizing antibacterial device 20.
Is a control device for controlling the driving device 25 of the fan 24 that controls the operation of the fan 24.

FIG. 6 shows a deodorizing antibacterial device 2 in the embodiment.
0 is a block diagram of the control device 10a, and FIG. 7 is a control flowchart of the control device 10a of the second embodiment.

The structure of the deodorizing antibacterial device is the same as that of the first embodiment, and the same components are denoted by the same reference numerals.
Detailed description is omitted.

In FIG. 6, reference numeral 300 denotes an intermittent period timer, which inputs a signal from a power supply and starts operation. A driving timer 301 receives a signal S300 from the power supply and the intermittent timer 300. A driving means 302 and a display means 303 input a signal S301 of a driving timer 301. Drive means 3
02 outputs a signal S302 to the driving device 25. As described above, the control circuit 10a is configured by the intermittent cycle timer 300, the driving timer 301, the driving unit 302, and the display unit 303.

The operation of the deodorizing and antibacterial device mounted on the refrigerator configured as described above will be described below.

According to this configuration, by inputting in advance the driving time and the stopping time of the deodorizing antibacterial device 20 to the driving timer 301 and the intermittent period timer 300, when a driving signal is output from the control device 10a to the driving device 25, The air containing the malodorous component in the refrigerator is supplied to the deodorizing antibacterial device 2
The deodorizing antibacterial catalyst body 30 is sucked in from the air suction port 22 of the
Activated carbon acting as an adsorbent in the deodorizing antibacterial catalyst layer 31 of
The substance adsorbed by the high silica zeolite having a silica / alumina ratio of 10 or more is quickly converted into a substance having a low odor intensity by catalysis such as manganese dioxide and copper, iron, nickel, cobalt, platinum and palladium. It is changed or deodorized.

Bacteria and mold spores floating in the air pass through the deodorizing antibacterial catalyst 30 and are combined with manganese dioxide in the deodorizing antibacterial catalyst layer 31 and copper, iron, nickel, cobalt, platinum, palladium. The bacteria are eliminated by the antibacterial action of the transition metal.

When a stop signal is output from the control device 10a to the drive device 25, the deodorizing antibacterial device 20 is stopped.

The operation of the control circuit will be described below with reference to FIG. First, when power is supplied, the intermittent cycle timer 300 and the driving timer 301 are reset in step 300, and start counting in step 301.

Next, at step 302, the time T300 preset in the drive timer 301 is compared with the count time t300 of the drive timer 301, and if t300 ≧ T300 is satisfied, the logic proceeds to step 303, and otherwise. Advances the logic to step 304.

In step 303, the driving timer 30
1 outputs a signal S301 to the driving means 302, and the driving device 25 receives the signal S302 from the driving means 302 to enter an operating state, and also outputs a signal S301 to the display means 303 from the driving timer 301 to output the signal S301 to the deodorizing antibacterial device 20. Indicates that the vehicle is running, and returns the logic to 301.

On the other hand, in step 304, a signal S 301 is output from the driving timer 301 to the driving means 302, and the driving device 25 outputs the signal S 302 from the driving means 302.
Is input, the driving timer 301 outputs a signal S301 to the display means 303, indicating that the operation of the deodorizing antibacterial device 20 is stopped, and advances the logic to 305.

In step 305, the time T301 preset in the intermittent cycle timer 300 is compared with the count time t301 of the intermittent cycle timer 300. If t301 ≧ T301 is satisfied, the process proceeds to step 300; The logic is returned to step 302.

As described above, the deodorizing antibacterial catalyst 30 comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder.
And a fan 24 for blowing the deodorizing antibacterial catalyst body 30;
By mounting a deodorizing antibacterial device 20 including a driving device 25 for driving the fan 24 and a control device 10a for intermittently controlling the operation of the driving device 25 in a refrigerator, the air path resistance is low, the mechanism is inexpensive, and the mechanism is low. It is possible to provide a refrigerator provided with a high-performance deodorizing antibacterial device which is extremely simple and does not require maintenance for a long period of time. In addition, since air is blown to the deodorizing antibacterial catalyst at predetermined time intervals and for a predetermined time, energy saving can be achieved.

(Embodiment 3) Hereinafter, Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 8 is a vertical sectional view of a main part of a deodorizing antibacterial device according to Embodiment 3 of the present invention.

In FIG. 8, 10b is a deodorizing antibacterial device 20.
Is a control device for controlling the driving device 25 of the fan 24 that controls the operation of the fan 24. Reference numeral 11 denotes an odor sensor that detects an odor in the refrigerator compartment 4 of the refrigerator 1.

FIG. 9 shows a deodorizing antibacterial device 2 in the embodiment.
0 is a block diagram of the control device 10b, and FIG. 10 is a control flowchart of the control device 10b of the embodiment.

The structure of the deodorizing antibacterial device is described in Example 1.
The same reference numerals are given to the same components,
Detailed description is omitted.

In FIG. 9, reference numeral 400 denotes an odor detecting means for detecting the odor of the odor sensor 11 for detecting the odor in the refrigerator compartment 4; 401, a drive control means for inputting a signal of the odor detecting means 400; Output to the device 25. 4
02 is a display means for displaying the operation state of the drive device 25,
The signal of the drive control means 401 is input. Thus, the odor detection means 400, the drive control means 401, the display means 40
2 constitutes the control circuit 10b.

The operation of the deodorizing antibacterial device mounted on the refrigerator configured as described above will be described below.

With this configuration, when a drive signal is output from the odor sensor 11 and the control device 10b to the drive device 25,
The air containing the malodorous component in the refrigerator is sucked in from the air suction port 22 of the deodorizing antibacterial device 20 by the blower fan 24 driven by the driving device 25, and serves as an adsorbent in the deodorizing antibacterial catalyst layer 31 of the deodorizing antibacterial catalyst 30. Activated carbon and high-silica zeolite with a silica / alumina ratio of 10 or more are adsorbed, and the adsorbed substances are quickly converted to manganese dioxide and odor intensity by the catalytic action of copper, iron, nickel, cobalt, platinum, palladium, etc. Or odorless.

When the bacteria and mold spores floating in the air pass through the deodorizing antibacterial catalyst 30, the manganese dioxide in the deodorizing antibacterial catalyst layer 31 and copper, iron, nickel, cobalt, platinum, palladium are removed. The bacteria are eliminated by the antibacterial action of the transition metal.

When a stop signal is output from the control device 10b to the drive device 25, the deodorizing antibacterial device 20 is stopped.

The operation of the control circuit will be described below with reference to FIG. When power is supplied to the control circuit 10b in step 400, a signal S401 is output from the drive control means 401 to the drive device 25 in step 401,
The driving device 25 is in an operating state. Next, in step 402, the signal S401 is also output from the drive control means 401 to the display means 402 to indicate that the deodorizing antibacterial device 20 is operating.

Next, in step 403, the odor in the refrigerator compartment 4 of the refrigerator 1 is detected by the odor detecting means 400, and if the odor (hereinafter, this odor is referred to as th400) satisfies th400 ≦ TH400, the flow proceeds to step 404. The logic is advanced, and otherwise, the operation state of the drive device 25 and the display of the operation of the display means 402 are continued, and step 403 is repeated.

Here, TH400 is an odor value at which the odor threshold level is set, and is a preset value.

Next, at step 404, the odor detecting means 400
A signal S400 is output to the drive control means 401, and a signal S401 is output from the drive control means 401 to the drive device 2.
5 and the driving device 25 is stopped. Next, at step 405, the drive control means 401 sends the signal S4.
01 is output to the display means 402 to indicate that the operation of the deodorizing antibacterial device 20 is stopped, and the logic is changed to step 40.
Proceed to 6. Next, if the power supply is turned on in step 406, the display of the operation stop of the display means 402 and the driving device 2
The operation of Step 5 is continued, and Step 406 is repeated. Otherwise, the logic returns to Step 400, and waits until power is supplied.

As described above, the deodorizing antibacterial catalyst 30 comprising at least manganese dioxide and at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder.
And a fan 24 for blowing the deodorizing antibacterial catalyst body 30;
A drive device 25 for driving the fan 24, a control device 10 b for intermittently controlling the operation of the drive device 25, and an odor sensor 11. The control device 10 b controls the deodorizing antibacterial device 20 according to the output of the odor sensor 11. By controlling the operation of the refrigeration system, it is possible to provide a refrigerator having a high-performance deodorizing antibacterial device that has low airflow resistance, is inexpensive, has a very simple mechanism, and does not require maintenance for a long time. It is needless to say that the operation of the deodorizing antibacterial device 20 is more economical because it depends on the odor intensity in the refrigerator compartment 4.

(Embodiment 4) Hereinafter, Embodiment 4 of the present invention will be described with reference to the drawings. FIG. 11 is a longitudinal sectional view of a main part of a deodorizing antibacterial device according to Embodiment 4 of the present invention.

In FIG. 11, 10c is a deodorizing antibacterial device 2
0 is a control device that controls a drive device 25 of the fan 24 that controls the operation of the fan 24. Reference numeral 12 denotes a temperature sensor for detecting the temperature in the refrigerator compartment 4 of the refrigerator 1.

FIG. 12 is a block diagram of the control device 10c of the deodorizing antibacterial device 20 in the embodiment, and FIG. 13 is a control flowchart of the control device 10c of the embodiment.

The structure of the deodorizing antibacterial device is described in Example 1.
The same reference numerals are given to the same components, and the detailed description thereof will be omitted.

In FIG. 12, reference numeral 500 denotes a temperature detecting means for detecting the temperature of the temperature sensor 12 for detecting the temperature in the refrigerator compartment 4; 501, a drive control means for inputting a signal of the temperature detecting means 500; Output to the device 25.
Reference numeral 502 denotes display means for displaying the operation state of the drive device 25, and receives a signal from the drive control means 501 as an input. Thus, the control circuit 10c is constituted by the temperature detecting means 500, the drive control means 501, and the display means 502.

The operation of the deodorizing antibacterial device mounted on the refrigerator configured as described above will be described below.

With this configuration, when a drive signal is output from the temperature sensor 12 and the control device 10c to the drive device 25, the air containing the malodorous component in the refrigerator is removed from the deodorant antibacterial device 2.
The deodorizing antibacterial catalyst body 30 is sucked in from the air suction port 22 of the
Activated carbon acting as an adsorbent in the deodorizing antibacterial catalyst layer 31 of
The substance adsorbed by the high silica zeolite having a silica / alumina ratio of 10 or more is quickly converted into a substance having a low odor intensity by catalysis such as manganese dioxide and copper, iron, nickel, cobalt, platinum and palladium. It is changed or deodorized.

Bacteria and fungal spores floating in the air pass through the deodorizing antibacterial catalyst 30 and are combined with manganese dioxide in the deodorizing antibacterial catalyst layer 31 and copper, iron, nickel, cobalt platinum, palladium or the like. Is eliminated by the antibacterial action of the transition metal.

When a stop signal is output from the control device 10c to the drive device 25, the deodorizing antibacterial device 20 is stopped.

The operation of the control circuit will be described below with reference to FIG. When power is supplied to the control circuit 10c in step 500, a signal S501 is output from the drive control means 501 to the drive device 25 in step 501, and
The driving device 25 is in an operating state. Next, in step 502, the signal S501 is also output from the drive control means 501 to the display means 502 to indicate that the deodorizing antibacterial device 20 is operating.

Next, in step 503, the temperature in the refrigerator compartment 4 of the refrigerator 1 is detected by the temperature detecting means 500, and if the temperature (hereinafter, this temperature is referred to as th500) satisfies th500 ≦ TH500, the flow proceeds to step 504. The logic is advanced. Otherwise, the operation state of the drive device 25 and the display of the operation of the display means 502 are continued, and step 503 is repeated.

Here, TH500 is an in-chamber temperature value set at the odor threshold level, which is set in advance.

Next, at step 504, the temperature detecting means 500
A signal S500 is output to the drive control means 501, and a signal S501 is output from the drive control means 501 to the drive device 2.
5 and the driving device 25 is stopped. Next, in step 505, the drive control means 501 sends the signal S5.
01 is output to the display means 502 to indicate that the operation of the deodorizing antibacterial device 20 is stopped, and the logic is changed to step 50.
Proceed to 6. Next, if the power is ON in step 506, the display of the operation stop of the display means 502 and the driving device 2
The operation of Step 5 is continued, and Step 506 is repeated. Otherwise, the logic returns to Step 500, and waits until power is supplied.

As described above, the deodorizing antibacterial catalyst 30 comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder.
And a fan 24 for blowing the deodorizing antibacterial catalyst body 30;
It comprises a driving device 25 for driving the fan 24, a control device 10 c for intermittently controlling the operation of the driving device 25, and a temperature sensor 12. The control device 10 c controls the deodorizing antibacterial device 20 according to the output of the temperature sensor 12. By controlling the operation, it is possible to provide a refrigerator equipped with a high-performance deodorizing antibacterial device that has low airflow resistance, is inexpensive, has a very simple mechanism, and does not require maintenance for a long time.

It goes without saying that the temperature detecting means 500 and the drive control means 501 can be constituted by one component such as a bimetal.

[0070]

As described above, the present invention provides a deodorizing method comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder. Since the deodorizing antibacterial device is composed of an antibacterial catalyst, a fan that blows the deodorizing antibacterial catalyst, and a driving device that drives the fan, a high performance that is inexpensive, has a very simple mechanism, and does not require maintenance for a long time. A deodorizing antibacterial device can be obtained.

Further, by providing a control device for driving the fan at predetermined time intervals for a predetermined time, the deodorizing antibacterial device can be operated intermittently, and more economical operation becomes possible.

A drive unit for driving the fan of the deodorizing and antibacterial device, a control unit for controlling the driving unit, and an odor sensor are provided. The control unit drives the fan according to the output of the odor sensor to control the deodorizing and antibacterial device. Since the device is operated, a deodorizing and antibacterial effect according to the odor intensity in the air can be obtained, and it is economical and can always keep the odor intensity in the air constant.

A drive unit for driving a fan of the deodorizing and antibacterial device, a control unit for controlling the driving unit, and a temperature sensor are provided. The control unit drives the fan according to the output of the temperature sensor to control the deodorizing and antibacterial device. In order to operate the device, the deodorizing antibacterial effect according to the temperature in the air is obtained, and the odor concentration in the air and the growth of bacteria are generally proportional to the temperature, so that the odor intensity and the growth of bacteria are Deodorizing antibacterial effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a refrigerator equipped with a deodorizing antibacterial device according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the deodorizing antibacterial device in the embodiment.

FIG. 3 is an external perspective view of the deodorizing antibacterial catalyst according to the embodiment.

FIG. 4 (a) is a schematic cross-sectional view showing a deodorizing antibacterial catalyst layer of the deodorizing antibacterial catalyst in the embodiment. (B) A state in which the deodorizing antibacterial catalyst layer of the deodorizing antibacterial catalyst in the embodiment is provided on an oxide carrier. Schematic sectional view showing

FIG. 5 is a longitudinal sectional view of a main part of a refrigerator equipped with a deodorizing antibacterial device according to a second embodiment of the present invention.

FIG. 6 is a block diagram of a control device of the deodorizing antibacterial device in the embodiment.

FIG. 7 is a flowchart of a control device of the deodorizing antibacterial device in the embodiment.

FIG. 8 is a longitudinal sectional view of a main part of a refrigerator equipped with a deodorizing antibacterial device according to Embodiment 3 of the present invention.

FIG. 9 is a block diagram of a control device of the deodorizing antibacterial device in the embodiment.

FIG. 10 is a flowchart of a control device of the deodorizing antibacterial device in the embodiment.

FIG. 11 is a longitudinal sectional view of a main part of a refrigerator equipped with a deodorizing antibacterial device according to a fourth embodiment of the present invention.

FIG. 12 is a block diagram of a control device of the deodorizing antibacterial device in the embodiment.

FIG. 13 is a flowchart of a control device of the deodorizing antibacterial device in the embodiment.

[Explanation of symbols]

 10a, 10b, 10c Control device 11 Odor sensor 12 Temperature sensor 20 Deodorizing antibacterial device 24 Fan 25 Drive device 30 Deodorizing antibacterial catalyst body 31 Deodorizing antibacterial catalyst layer 32 Oxide carrier

Claims (4)

[Claims] 1. A deodorizing antibacterial catalyst comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder; A deodorizing antibacterial device comprising a fan for blowing air to the catalyst and a driving device for driving the fan. 2. A deodorizing and antibacterial catalyst comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder. A fan that blows the catalyst, a driving device that drives the fan, and a control device that controls the driving device;
The deodorizing antibacterial device, wherein the control device drives the fan for a predetermined time at regular intervals. 3. A deodorizing and antibacterial catalyst comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder. A fan that blows the catalyst, a driving device that drives the fan, a control device that controls the driving device, and an odor sensor, wherein the control device drives the fan according to an output of the odor sensor. A deodorizing antibacterial device characterized by being made to be. 4. A deodorizing and antibacterial catalyst comprising at least manganese dioxide, at least one oxide selected from the group consisting of copper, iron, nickel, cobalt, platinum and palladium, activated carbon, zeolite and a binder. A fan that blows the catalyst, a driving device that drives the fan, a control device that controls the driving device, and a temperature sensor, wherein the control device drives the fan according to an output of the temperature sensor. A deodorizing antibacterial device characterized by being made to be.