JPH05149671A - Refrigerator with freezer chamber - Google Patents

Abstract

PURPOSE:To prevent generation of smell and transfer of the smell to foodstuff by providing a forced-circulation type deodorizer in a tightly closed space in a refrigerator with tightly closed space such as a low temperature chamber. CONSTITUTION:A chilled case 7 is provided slidably in forward and rearward directions in a low temperature chamber 5 formed by partitioning a part of a refrigeration chamber 3 and a low temperature box 9 is formed around the outer periphery of the case 7, which is fixed in a refrigerator. And a deodorizing box 22 for exclusive use for the box 9 is disposed at the rear of the box 9. A blower 25 for forced circulation of air in the case 7, fan 26, deodorizing catalyst 24, and a power source electrode 23 for generating ozone are installed in the box 22. A blowoff hole 28 and a suction hole 29 are formed through the box 9 and the case 7 and a shielding plate 27 is provided to close the holes 28, 29 respectively. As a result, the interior of the box 22 is deodorized always and even if foodstuff is stored without using lap, generation of smell and the transfer of the smell is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to food storage in a cold room of a refrigerator / freezer.

[0002]

2. Description of the Related Art FIGS.
FIG. 9 is a perspective view and a cross-sectional view showing a conventional freezer-refrigerator disclosed in Japanese Patent No. 969, in which 1 is a refrigerator body, 2 is a freezer compartment, and 3 is a refrigerating compartment, which are insulated by a partition wall 4. Reference numeral 5 is a low temperature room divided into a part of the refrigerating room 3, and 6 is a vegetable room. Reference numeral 7 is a chilled case in the low temperature chamber 5, and 8 is a lid body that opens and closes the front surface of the chilled case 7. 9
Is a low temperature box forming the low temperature chamber 5 around the chilled case 7. A partition wall 10 is formed by a heat insulating wall 10a and upper and lower decorative covers 10b and 10c. A cold air passage 11 is formed between the lower surface of the low temperature box 9 and the partition wall 10, and a refrigerating chamber is formed in a part of the partition wall 10. A communication port 12 that communicates with is formed. Reference numeral 13 is a cold air passage to the refrigerating room, and the cold air discharge port 1 thereof
A damper thermostat 14 that automatically opens and closes 3a controls the amount of cold air. Reference numeral 15 denotes a cold air passage for cooling a part of the cold air controlled by the damper thermostat 14 to cool the low temperature chamber 5, and communicates with the cold air passage 11.

Next, the operation will be described. The cool air cooled by the cooler (not shown) is blown by the fan (not shown), and a part of the cool air is passed through the cool air passage 13 to the refrigerating chamber 3.
Because the amount of cold air is controlled by the damper thermostat 14 that automatically opens and closes the cool air discharge port 13a according to the temperature inside the refrigerator, the refrigerating chamber 3 is cooled to a predetermined temperature 3 ° C., and a part of the cool air cools the low temperature chamber 5. The low temperature chamber 5 is cooled to a predetermined temperature of 0 ° C. through the cold air passage 11 and the cold air flows into the cold storage chamber 3 through the communication port 12.

[0004]

Since the conventional refrigerator-freezer is constructed as described above, the low temperature chamber 7 is indirectly cooled from the outer periphery, but food is not wrapped in the low temperature chamber 7 or is simply packaged. When stored in, it may not be completely sealed due to the generation of odors and the transfer of odors between foods. Therefore, the cold room 7
Since the inside cannot be kept at high humidity of 80 to 90%, the food is stored without wrapping or in simple packaging to reduce the water content of the food,
The odor transfer could not be controlled and stored.

Further, the conventional refrigerator-freezer is especially used in a low temperature room or a vegetable room where bacteria and mold are adhered to the inside of the refrigerator and foods when the cool air is blown by the fan, and the air is indirectly cooled. When food was stored without wrapping or in simple packaging, there was a possibility of drying and adhesion of bacteria to food. Therefore, there is a problem that it is necessary to store the food in a wrap or the like, which is troublesome.

The present invention has been made to solve the above-mentioned problems. Even if the inside of the low temperature chamber is closed, no odor is generated in the low temperature chamber and no odor is transferred to the food. Since it can be kept at 80 to 90% PH), even if chilled food or the like is stored without wrapping, it is an object of the present invention to suppress water loss and odor transfer of the food and to enable high quality storage.

Further, according to the present invention, the low temperature room and the vegetable room are hermetically sealed and kept at high humidity, and even if the food is stored without wrapping or in simple packaging, it does not dry and does not have bacteria and mold attached to it, and is of high quality. The purpose is to prevent bacteria, mold, etc. from being released into the refrigerator and adhering to foods and the refrigerator, as well as being able to be preserved.

[0008]

According to a first aspect of the present invention, there is provided a refrigerator-freezer having a closed space such as a low temperature room or a vegetable room, and a forced circulation type deodorizing device is provided in the closed space.

According to a second aspect of the present invention, there is provided a freezer-refrigerator according to the first aspect, wherein the detecting means for detecting the opening / closing of the refrigerator door, the integrating means for integrating the door opening / closing frequency from the output of the detecting means, and the door opening / closing. A control means for detecting the frequent opening and closing time of the door from the frequency and controlling the operation of the deodorizing device is provided.

A refrigerating refrigerator according to a third aspect of the present invention is a freezing refrigerator having a freezing compartment, a refrigerating compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and is connected to a high pressure generator. First electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower And an ion generator comprising a deodorizing catalyst provided between the first electrode and the second electrode.

According to another aspect of the present invention, there is provided a freezer-refrigerator having a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, which is provided in a low temperature compartment of the refrigerator compartment and is connected to a high pressure generator. A first electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower An ion generator including a deodorizing catalyst provided between the first electrode and the second electrode is provided.

A refrigerating refrigerator according to a fifth aspect is a freezing refrigerator having a freezing compartment, a refrigerating compartment, a vegetable compartment, etc., which are partitioned by partition walls, and is provided in a low temperature compartment of the refrigerating compartment and connected to a high pressure generator. A plurality of first electrodes having different lengths, a dielectric provided between the first electrode and the second electrode, and forced circulation of cold air in the discharge space between the first electrode and the second electrode. An ion generator comprising a blower and a deodorizing catalyst provided between the blower and the first electrode and the second electrode is provided.

According to a sixth aspect of the present invention, there is provided a freezer-refrigerator including a freezer compartment, a refrigerating compartment, a vegetable compartment, etc., which are partitioned by partition walls. , Forced circulation of cold air in the first electrode connected to the high-voltage generator, the dielectric provided between the first electrode and the second electrode, and the discharge space between the first electrode and the second electrode The blower includes an ion generator including the blower and a deodorizing catalyst provided between the blower and the first electrode and the second electrode.

The refrigerating refrigerator according to claim 7 is a refrigerating refrigerator including a freezing compartment, a refrigerating compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in each of the compartments to generate a high voltage of a relatively high frequency. Forced circulation of cold air in the first electrode connected to the high-voltage generator, the dielectric provided between the first electrode and the second electrode, and the discharge space between the first electrode and the second electrode. A blower to be provided, and an ion generator comprising this blower and a deodorizing catalyst provided between the first electrode and the second electrode, wherein the operating time of the blower is longer than the operating time of the high pressure generator. is there.

The refrigerator / freezer of claim 8 is a refrigerator / freezer including a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high pressure generator. And a first electrode with a sharp tip,
A dielectric provided between the first electrode and the second electrode,
A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode were provided. It is a thing.

The refrigerator / freezer according to claim 9 is a refrigerator / freezer having a freezing compartment, a refrigerating compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high pressure generator. First electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower An ion generator comprising a deodorizing catalyst provided between the first electrode and the second electrode is provided, the first electrode and the second electrode are attached to an integral fixture, and the first electrode is exposed only at the tip. It was done.

The refrigerator / freezer of claim 10 is a refrigerator / freezer provided with a refrigerator compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high pressure generator. A first electrode, and a dielectric having a hole forming a discharge space between the first electrode and the second electrode,
A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode were provided. It is a thing.

[0018]

In the refrigerating refrigerator according to the first aspect of the present invention, even if food is stored in the closed space by the dedicated deodorizing device without wrapping, the food is kept at a high humidity and is prevented from drying and odor transfer, and can be stored with high quality.

In the refrigerating refrigerator according to the second aspect of the present invention, the operation control is performed by detecting the door opening / closing frequency and according to the stored condition of the food and the used condition of the refrigerator, so that the food is kept at high humidity even if it is stored without wrapping. Suppression of dripping, drying, and odor transfer enables high-quality storage.

In the refrigerating refrigerator according to the third aspect, the ozone generated by the ion generator provided in the refrigerator and the air containing the odor component are oxidatively decomposed by the deodorizing catalyst, so that the odor generation and the odor transfer of the food can be suppressed. Negative ions adhere to the food surface and the food surface is negatively charged, which prevents bacteria and mold from adhering.

In the refrigerating refrigerator according to claim 4, the ozone generated by the ion generator provided in the sealed low temperature chamber and the air containing the odor component are oxidatively decomposed by the deodorizing catalyst, so that the odor generation and the odor transfer of the food can be prevented. In addition to suppressing, negative ions adhere to the food surface, and the food surface is negatively charged, which prevents bacteria and mold from adhering.

In the refrigerator according to the fifth aspect, ions and ozone can be supplied simultaneously and stably.

According to the sixth aspect of the present invention, even if the food is stored in a low temperature room or a vegetable room without wrapping it or storing it in a simple package, bacteria and mold will not adhere and the packaging will not be troublesome. Can be saved.

The freezer-refrigerator according to claim 7 can more stably and efficiently generate ions, prevent bacteria and molds floating in the refrigerator from adhering to foods and walls, and can preserve high-quality foods. ..

In the refrigerating refrigerator according to the eighth aspect, the first electrode has a rigidity that does not deform even if a slight load is applied, so that a stable ozone generation amount can be secured.

The refrigerator-freezer of claim 9 can secure a stable ozone generation amount.

In the refrigerating refrigerator according to the tenth aspect, the gap distance can be kept constant and a stable ozone generation amount can be secured.

[0028]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. In the description of the freezer-refrigerator of the present embodiment, the same or corresponding parts as those of the conventional example are designated by the same reference numerals in the drawings, and the description thereof will be omitted. In FIGS. 1 to 3, 7 is a chilled case that opens forward and upward in a low temperature chamber 5 defined by a part of the refrigerating chamber 3 and slides back and forth. It is a low temperature box fixedly installed in. Reference numeral 8 is a lid body that closes the front opening of the chilled case 7. Reference numeral 16 denotes an upper surface cooling plate that closes the upper opening of the chilled case 7, and is attached and fixed to the outer peripheral flange of the low temperature box 9. Reference numeral 22 denotes a deodorizing box dedicated to the low temperature box 9 installed on the back side of the low temperature box 9. Inside the deodorizing box 22, a blower 25 for forcedly circulating the air in the chilled case 7, a fan 26 and a deodorizing catalyst 2 are provided.
4. An ozone generating power supply electrode 23 is installed. The low temperature box 9 and the chilled case 7 have an outlet hole 28 and an inlet hole 29, and the chilled case 7 has an outlet hole 28.
A shielding plate 27 is installed in the suction port hole portion 29 to projectively close the suction port hole portion 29 and the suction port hole portion 29. Reference numeral 4 is a partition wall that divides the freezer compartment 2 and the refrigerating compartment 3 and forms a floor surface of the freezer compartment 2a.
And the heat insulating member 4c. A cold air passage 15 for cooling part of the cold air controlled by the damper thermostat 14 from the cold air outlet 13a of the cold air passage 13 to the refrigerating compartment 3 is formed in the partition wall 4 to cool the cold compartment 3. The ceiling surface 4b is blown out from the cold air discharge port 18 which is partially opened, and cold air is flown between the ceiling surface of the refrigerating chamber 3 and the upper surface cooling plate 16 to cool indirectly from the upper surface. 20 is a cooler, 2
1 is an internal fan. The air passages of the outlet hole portion 28 and the suction hole portion 29 of the deodorizing box 22 penetrate the cold air passage 19 between the chilled case 7 and the low temperature box 9, but since the periphery of the air passage is surely divided. The cold air for cooling the surroundings of the chilled case 7 does not enter the deodorization box 22, and the atmosphere in the chilled case does not flow out of the deodorization box 22 into the cold air passage 19.

Next, the circuit configuration of the deodorizing box 22 will be described with reference to FIG. In the figure, 33 is a deodorizing box 22.
The control unit for controlling the stop of operation of the refrigerator is composed of a microcomputer or the like, and is integrally configured with a control unit (not shown) for controlling the operation of the refrigerator body 1. A deodorizing box drive circuit 34 is connected to the control unit 33. A relay 36 for turning on / off a power supply 35 supplied to the blower 25 and the ozone generating power supply electrode 23 in response to a signal from the control unit 33.
Is opened and closed to operate or stop the deodorization box 22.

Next, the cooling action of the first embodiment will be described. The cool air cooled by the cooler 20 is the internal fan 21.
And is blown out to the freezing compartment 2 to cool the freezing compartment 2. A part of the cool air is guided to the cool air discharge port 13a through the cool air flow path 13 to the refrigerating chamber 3, and the cool air discharge port 13a.
The amount of cold air is controlled by the damper thermostat 14 that opens and closes to cool the inside of the refrigerating chamber 3 to a predetermined temperature of 3 ° C. on the other hand,
A part of the cold air is a cold air passage 15 provided in the partition wall 4.
Through the cold storage chamber 3 and the ceiling surface 4b from the cold air discharge port 18 that partially opens, the cool air flows above the upper surface cooling plate 16 formed of the hydrophilic porous resin material 17, and indirectly from the upper surface to the low temperature chamber. The inside of 5 is cooled to a predetermined temperature of 0 ° C.

A cool air passage 19 is provided between the chilled case 7 and the low temperature box 9 on the back surface and the lower surface, and after cooling the upper surface cooling plate 16, a part of the cool air flows into the cold air passage 19 and is cooled from the upper surface, the rear surface and the bottom surface. I do. However, since the upper surface through which the cool air flows first has the lowest temperature, the temperatures of the lower surface and the back surface do not become so low and the food does not freeze.

Next, in the low temperature chamber 5, the front opening of the low temperature case 7 is closed by the lid body 8, and the upper opening is closed by the upper cooling plate 16 formed of the hydrophilic porous resin material 17. Since the cold air has a closed structure that does not directly enter the chilled case 7, if the food is stored without wrapping, the inside of the chilled case 7 becomes high humidity due to evaporation of some water from the food.

The odor generated from the food when the food is stored without wrapping is forcibly circulated in the deodorizing box 22 from the suction hole 29 by the blower 25 and the fan 26, and the deodorizing catalyst 24 and the ozone generating power electrode. The molecule 22 is analyzed to have no odor and is circulated again in the chilled case 7 through the outlet hole 28. Since the air outlet hole portion 28 is closed by the shield plate 27, the circulating air does not come into direct contact with the food.

Further, by arranging them below the blow-out hole portion 28 and the suction-port hole portion 29, it is taken care that moisture of food or the like does not easily reach the upper parts in the deodorizing box 22.

Next, the operation control of deodorization by the control unit 33 will be described. In order to maximize the deodorizing effect, the blower 25 is continuously operated and more air is circulated, but for the food in the low temperature box 9, the surface of the food tends to be dried due to the wind speed. The life of the blower 25 and the power supply electrode 23 also has a problem. For this reason, as shown in the time chart of FIG. 4, deodorization operation is performed for a certain period of time to perform intensive deodorization for obtaining a rapid deodorizing effect at the time of rising of odor, such as when food is added, to lower the odor level. Then, in order to maintain the effect of concentrated deodorization, intermittent deodorization operation such as b operation and c stop for a shorter time than concentrated deodorization a is performed to suppress the generation of odor.

Example 2. In the first embodiment described above, the low temperature chamber 5 in the refrigerating chamber 3 is a closed space, and the dedicated deodorizing device is installed. However, as shown in FIG. Also in the vegetable compartment (which may be a chilled compartment in which the temperature range is 0 ° C.) closed by the lid 31 having the packing 32, the dedicated deodorizing box 22 is similarly installed on the rear surface of the vegetable case 30,
Even if food such as vegetables is stored without wrapping by performing concentrated and intermittent operation control, the surface of the food is not dried and odor transfer is prevented and the food is stored in high quality, similar to the above-mentioned example. Produce an effect.

Example 3. The third embodiment of the present invention will be described below with reference to the drawings. In FIGS. 7 and 8, reference numeral 7 denotes a chilled case that opens in the front and upper sides and slides back and forth in the low temperature chamber 5 defined in a part of the refrigerating chamber 3, and 9 forms the outer periphery of the chilled case 7 and the inside of the refrigerator. It is a low temperature box fixedly installed in. Reference numeral 8 is a lid body that closes the front opening of the chilled case 7. Reference numeral 16 denotes an upper surface cooling plate that closes the upper opening of the chilled case 7, and is attached and fixed to the outer peripheral flange of the low temperature box 9. Reference numeral 22 denotes a deodorizing box dedicated to the low temperature box 9 installed on the back side of the low temperature box 9. Inside the deodorizing box 22, a blower 25 for forcedly circulating the air in the chilled case 7, a fan 26 and a deodorizing catalyst 2 are provided.
4. An ozone generating power supply electrode 23 is installed. The low temperature box 9 and the chilled case 7 have an outlet hole 28 and a suction hole 29, and 4 is a partition wall that divides the freezing compartment 2 and the refrigerating compartment 3 and forms a floor surface of the freezing compartment 2. 4a and the heat insulating member 4c. A cold air passage 15 for cooling part of the cold air controlled by the damper thermostat 14 from the cold air outlet 13a of the cold air passage 13 to the refrigerating compartment 3 is formed in the partition wall 4 to cool the cold compartment 3. The ceiling surface 4b is blown out from the cold air discharge port 18 which is partially opened, and cold air is flown between the ceiling surface of the refrigerating chamber 3 and the upper surface cooling plate 16 to indirectly cool from the upper surface. 20 is a cooler, 2
1 is an internal fan.

Next, the cooling action of the third embodiment will be described. The cool air cooled by the cooler 20 is used as the internal fan 2
1 is blown and blown into the freezing chamber 2 to cool the cooling chamber 2. A part of the cool air is guided to the cool air discharge port 13a through the cool air flow path 13 to the refrigerating chamber 3, and the cool air discharge port 13a.
The amount of cold air is controlled by the damper thermostat 14 that opens and closes to cool the inside of the refrigerating chamber 3 to a predetermined temperature of 3 ° C. On the other hand, a part of the cold air is blown out from the cold air discharge port 18 which partially opens the refrigerating chamber 3 and the ceiling surface 4b through the cold air passage 15 provided in the partition wall 4, and the hydrophilic porous resin material 17 is used. Cool air flows above the formed upper surface cooling plate 16 to indirectly cool the inside of the low temperature chamber 5 to a predetermined temperature of 0 ° C. from the upper surface.

Further, a cool air passage 19 is provided between the chilled case 7 and the low temperature box 9 on the back surface and the lower surface, and after cooling the upper surface cooling plate 16, a part of the cool air flows into the cold air passage 19 and is cooled from the upper surface, the back surface and the bottom surface. I do. Since the upper surface through which cold air flows first has the lowest temperature, the temperatures of the lower surface and the back surface do not become so low and the food does not freeze. Next, the inside of the low temperature chamber 5 is closed by the lid 8 at the front opening of the low temperature case 7, and closed by the top cooling plate 16 formed of the hydrophilic porous resin material 17 at the top opening.
Since the cold air has a closed structure that does not enter the chilled case 7 directly, if the food is stored without wrapping, the inside of the chilled case 7 will have a high humidity due to evaporation of some water from the food.

The odor generated from the food when the food is stored without wrapping is forcibly circulated in the deodorizing box 22 by the blower 25 and the fan 26 through the suction hole 29, the deodorizing catalyst 24, the ozone generating power electrode. The molecule 22 is analyzed to have no odor and is circulated again in the chilled case 7 through the outlet hole 28.

Next, the operation control of the deodorizing device of the present invention will be described. In FIG. 9, there is a door opening / closing detection device 40 such as a switch as a means for detecting the opening / closing of the door of a refrigerating room or the like, and outputs the opening / closing state of the door to the microcomputer 41. The microcomputer 41 determines whether the drive unit 42 is energized, and the deodorizing device 22 is operated.

Next, the contents of the operation determining means 47 of the deodorizing device 22 will be described with reference to FIG. 10 using a control block diagram.
The door opening / closing input means 44 detects that the door is in an open state, and the door opening signal input by the door opening / closing frequency accumulating means 45 is input to accumulate the door opening number per unit time. The frequency / time detecting means 46 detects the frequent time by inputting the number of doors opened per unit time, and the deodorizing apparatus operation determining means 47 detects the frequent opening / closing of the doors and the deodorizing apparatus 2 is operated at the time when food is often stored.
Operate 2 and decide the operation so as to prevent the generation of odor and the transfer of odor to food.

Example 4. Although the deodorizing device 22 is operated according to the opening / closing frequency of the refrigerating room door in the above embodiment, the deodorizing device 22 may be operated according to the opening / closing frequency of the lid body 8.

Example 5. The fifth embodiment of the present invention will be described below. 7 and 8, a temperature detecting element 37 for detecting the temperature in the low temperature chamber 5 is installed so as to come into contact with the back surface of the chilled case 7. Next, the operation control of the deodorizing device according to the fifth embodiment of the present invention will be described. In FIG. 11, a temperature detecting device 38 such as a temperature detecting element 37 is provided as a temperature detecting means for the low temperature chamber 5, and outputs the temperature of the low temperature chamber 5 to the microcomputer 41. The microcomputer 41 determines whether the drive unit 42 is energized, and the deodorizing device 22 is operated.

Next, the contents of the operation determining means 54 of the deodorizing device 22 will be described with reference to FIG. 12 with reference to a control block diagram.
The temperature detecting means 52 detects the temperature in the low temperature chamber 5, and the temperature of the low temperature chamber 5 inputted by the food feeding time detecting means 53 detects whether or not food has been fed. When food is added, the temperature rises and is detected. The deodorizing device operation determining means 54 operates the deodorizing device 22 when the temperature of the low temperature chamber 5 rises and the food is stored, and determines the operation so as to prevent generation of odor and transfer of odor to food.

Example 6. Embodiment 6 of the present invention will be described below with reference to the drawings. In the description of the refrigerator / freezer of this embodiment, the same parts as those in the conventional example and the first embodiment are designated by the same reference numerals in the drawings, and the description thereof will be omitted. In FIGS. 13-16, 22 is an ion generator dedicated to the low temperature box 9. 23 is an ionizer, 23a is a high pressure generator, and 23b
Is a first electrode which is a thin metal wire connected to the high voltage generator 23a, 23c is a second electrode which is a thin metal wire connected to the high voltage generator 23a, and 23d is a flat plate provided in close contact with the second electrode 23c It is a dielectric. 30 is the first electrode 2
It is a discharge space between 3b and the second electrode 23c. Reference numeral 25 is a blower for forcibly circulating the negative ions generated in the discharge space 24 together with cold air, and 26 is a fan. Reference numeral 24 is a deodorizing catalyst installed at the entrance and exit of the first electrode 23b and the second electrode 23c.

Next, the ion generator of the sixth embodiment will be described. When a high voltage is applied from the high voltage generator 23a to the first electrode 23b, which is a thin metal wire having a length of a ₁ and a ₂ (a ₁ <a ₂ ), and the second electrode 23c, which is a flat metal electrode, The periphery of the one electrode 23b becomes a plasma state, and the electrons travel toward the second electrode 23c. At this time, length a ₁
A discharge distance d ₁ for the first electrode 23b ₁ of a length a ₂
Of the discharge distance d ₂ with respect to the first electrode 23b ₂ of
d _1> d _2, and the the energy level E ₁ of the emitted electrons in the discharge space 24 from the first electrode 23b ₁ of the length a _1,
The relationship between the energy level E _{2 of the} electrons emitted from the first electrode 23b _{2 having} the length a ₂ into the discharge space 30 is E ₁ <E ₂
Is. The electrons emitted from the first electrode 23b _{1 having} the length a ₁ have a long discharge distance and a low energy level, and are absorbed by, for example, oxygen molecules in the discharge space 30 to generate negative ions. The generated negative ions are the second electrode 23.
Before it flows to c, it is discharged from the ion generator 22 by the blower 25, discharged into the chilled case 7 by the fan 21 together with the cool air, and adheres to the surface of the food stored in the chilled case 7, becomes negatively charged, mold, etc. To prevent the occurrence of. The electrons emitted from the first electrode 23b _{2 having} the length a ₂ have a short discharge distance and a high energy level, and decompose oxygen molecules in the discharge space 24 to generate ozone. The generated ozone is
The blower 25 and the fan 26 forcibly oxidize and decompose the air containing the odorous components taken into the ion generating device 22, and this oxidative decomposition action is promoted by the deodorizing catalyst 24, and the deodorized air is blown into the outlet hole. It is circulated again in the chilled case 7 from the section.

Example 7. Embodiment 7 of the present invention will be described below with reference to the drawings. In the description of the refrigerator-freezer of the present embodiment, the same parts as those of the conventional example are designated by the same reference numerals in the drawings, and the description thereof will be omitted. 17 to 20, 22 is an ion generator, and the ionizer 2 is provided in the ion generator 22.
3 are installed. 23a is a high voltage generator, 23b is a first electrode which is a metal thin wire connected to the high voltage generator 23a, 23c is a second electrode which is a flat metal wire connected to the high voltage generator 23a, and 23d is a second electrode. It is a flat plate-shaped dielectric provided in close contact with the electrode 23c. Reference numeral 30 is a discharge space between the first electrode 23b and the second electrode 23c. Two
Reference numeral 5 is a blower for forcibly circulating the negative ions generated in the discharge space 30 together with the cool air, and 26 is a fan. 20
Is a cooler installed on the back of the freezer compartment 2, and 21 is a refrigerator fan for forced circulation of cold air in the refrigerator.

Next, the cooling action of this embodiment will be described. The cool air cooled by the cooler 20 is used as the internal fan 2
A part of the cold air that is blown by 1 and is blown to the freezing compartment 2 to cool the cooling compartment 2 is blown to the refrigerating compartment 3 through the cool air duct, and circulates in the refrigerator 1 to cool the refrigerating compartment 3. There is.

Next, the ion generator of the present invention will be described. When a high voltage is applied to the first electrode 23b and the second electrode 23c by the high voltage generator 23a, the periphery of the first electrode 23b is in a plasma state and the electrons travel toward the second electrode 23c. At that time, electrons are absorbed by, for example, oxygen molecules in the discharge space 24, and negative ions are generated. The generated negative ions are discharged from the ion generator 22 by the blower 25 before flowing to the second electrode 23c, and are discharged into the inside by the fan 21 inside the refrigerator together with the cool air, and are attached to the inside wall of the inside of the refrigerator, food stored in the inside, and the like. It is electrically charged to prevent mold and the like.

Example 8. The eighth embodiment of the present invention will be described below. In FIG. 20, reference numeral 7 denotes a chilled case that opens in the front and the upper to slide back and forth in the low temperature chamber 5 defined in a part of the refrigerating chamber 3, and 9 forms the outer periphery of the chilled case 7 and is fixed in the refrigerator. It is a low temperature box installed. 8
Is a lid body that closes the front opening of the chilled case 7. Reference numeral 16 denotes an upper surface cooling plate that closes the upper opening of the chilled case 7 and is attached to the outer peripheral flange of the low temperature box 9. Reference numeral 22 denotes a dedicated ion generator installed on the back side of the low temperature box 9.

In the low temperature box 9, the cold air blown from the cold air discharge port which partially opens the refrigerating chamber 3 and the ceiling surface 4b flows to the upper side of the upper surface cooling plate 16 and is indirectly cooled from the upper surface. Since the lower greenhouse 5 is closed by the lid body 8 at the front and the upper part is closed by the upper surface cooling plate 16, the chilled case 7
Since it has a closed structure in which cold air does not enter directly, if the food is stored without wrapping, the inside of the chilled case 7 becomes high humidity due to the evaporation of some water from the food.

The negative ions emitted by the ion generator 22 adhere to the surface of the food stored in the chilled case 7, and the surface of the food is negatively charged. -Repels mold and the like, so food can be stored in high quality without the need for packaging.

Example 9. The ninth embodiment of the present invention will be described below. In FIG. 21, reference numeral 27 is a vegetable case installed in the vegetable compartment 6 and having an upper opening, and 28 is a lid body installed so as to close the upper part of the vegetable case 27. Two
Reference numeral 2 is a dedicated ion generator installed on the back surface of the vegetable case 27. Since the vegetable case 27 has a closed structure that does not allow cold air to enter directly by the lid body 28, even if food is stored without wrapping as in the second embodiment, bacteria and mold are repelled by negative ions, and high quality is achieved. Can be saved.

Example 10. Next, a tenth embodiment of the present invention will be described. Since the high-voltage generator 23a outputs a high voltage at a relatively high frequency, the surroundings of the first electrode 23b enter into a plasma state and electrons proceed toward the second electrode 23c, but the probability that the electrons are absorbed by the second electrode 23c. Becomes smaller and becomes more likely to exist as negative ions between the first and second electrodes. As shown in FIG. 22, the first electrode 2 is provided between a and a ′.
Negative ions are generated at the tip of 3b. When a high voltage is output at a high frequency, the polarity of the electrode changes instantaneously, so the probability of being absorbed by the second electrode 23c only during aa 'decreases. In addition, the influence of frequency on the generation of ions will be described with reference to a graph based on one experimental data shown in FIG. In the figure, d is the first electrode 23b and the second electrode 23.
The distance between c, N is the number of the first electrodes 23b, Vo-p is the firing voltage, and A is the air volume of the blower 25. As shown in FIG. 23, it was found that a large number of ions were generated when the frequency was about 40 Hz to 60 Hz, and when the frequency was too low or too high, the number of ions generated was small and the frequency was relatively high. It turns out that is good. It should be noted that this optimum relatively high frequency is the above d, N, V
It depends on the conditions such as op and A. Also,
For example, when the operation of the high pressure generator 23a is stopped, the blower 2
No. 5 operates the blower 25 longer than the high-pressure generator 23a, such as delaying the stop slightly, so that the negative ions generated between the first and second electrodes can be sufficiently circulated to the outside of the ion generator, so that they can be used efficiently. it can.

Example 11. Next, an eleventh embodiment of the present invention will be described. In FIG. 24, the first electrode 23b has a diameter of a certain thickness and has a sharp tip only at the tip so that the first electrode 23b has rigidity not to be deformed by some load. The distance between the gaps of the electrodes 23c is stabilized.

The amount of generated ions and the amount of generated ozone are shown in FIG.
As shown in the graph of FIG. 5, the first electrode 23b and the second electrode 2
The distance between the gaps 3c has a great influence, and it is necessary to secure a stable generation amount.
In order to prevent the deformation of the first electrode 23b, the first electrode 23b has a certain thickness so as to have a rigidity that does not deform even if a slight load is applied, and the first electrode 23b has a shape in which only the tip of the discharge is sharpened. To do.

Example 12 Next, a twelfth embodiment of the present invention will be described. In FIG. 26, 31 is the first electrode 23.
b is a fixture for fixing the second electrode 23c, 31b is a cover that exposes only the tip of the first electrode 23b and covers the other outer peripheral portion, and is formed integrally with the fixture 31. The distance between the gap between the electrode 23b and the second electrode 23c is stabilized.

The amount of generated ions and the amount of generated ozone are shown in FIG.
As shown in the graph of FIG. 5, the first electrode 23b and the second electrode 2
The influence of the gap distance of 3c is large, and in order to secure a stable generation amount, the first electrode 23b and the second electrode 23c are attached by the same attachment and the first electrode 23 of the metal thin wire is attached.
In order to prevent the deformation of b, only the tip end portion of the discharge is exposed and the other outer peripheral portion is closed and fixed by the cover 31b.

Example 13. Next, a thirteenth embodiment of the present invention will be described. In FIGS. 27 and 28, 23d is a dielectric integrally formed with the first electrode 23b and the second electrode 23c, and inside the first electrode 23b and the second electrode 23c.
Has a hole portion 24 which is a discharge space between. 25 is a blower for forcibly circulating the negative ions generated in the holes 24 together with the cool air, 26 is a fan, and 24 is the first electrode 23.
b, a deodorizing catalyst installed at the entrance / exit of the second electrode 23c.

As shown in the graph of FIG. 25, the amount of generated ions and the amount of generated ozone are greatly influenced by the gap distance between the first electrode 23b and the second electrode 23c. Therefore, in order to secure a stable generated amount, First electrode 23b and second electrode 2
By forming 3c integrally with the dielectric 23d, the gap distance is kept constant.

[0062]

The present invention has the following effects.
The freezer-refrigerator according to claim 1 has a closed space such as a low temperature room or a vegetable room. Since the closed space is provided with a forced circulation type deodorizing device, the user can store food without wrapping. Even if the water content of the food is reduced, the odor is generated, and the odor transfer is maintained at a high humidity, the drying and odor transfer are suppressed, the dryness is prevented, and high quality food can be stored.

According to a second aspect of the present invention, there is provided a freezer-refrigerator according to the first aspect, wherein the detecting means for detecting the opening / closing of the refrigerator door, the integrating means for integrating the door opening / closing frequency from the output of the detecting means, and the door opening / closing. The frequency of opening and closing of the door is detected from the frequency, and the control device that controls the operation of the deodorizing device is provided.Therefore, the operation control detects the frequency of opening and closing the door and adjusts to the storage condition of food and the use condition of the refrigerator. Therefore, even if it is stored without wrapping, the food can be kept at high humidity, and it can be stored with high quality by suppressing drying and odor transfer.

The freezer-refrigerator according to claim 3 is a freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc., which are partitioned by partition walls, and is provided in at least one of the compartments and connected to a high pressure generator. First electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower And an ion generator consisting of a deodorizing catalyst provided between the first electrode and the second electrode, so that the odor component is generated by the ozone and the deodorizing catalyst generated by the ion generator provided in the refrigerator. Since the air containing air is oxidized and decomposed, odor generation and odor transfer of food are suppressed, and since negative ions are attached to the surface of the food and the surface of the food is negatively charged, adhesion of bacteria and mold can be prevented.

The freezer-refrigerator according to claim 4 is a freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in the low temperature compartment of the refrigerator compartment and connected to a high pressure generator. A first electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower Since the configuration is provided with an ion generator consisting of the deodorizing catalyst provided between the first electrode and the second electrode, the odor is generated by the ozone and the deodorizing catalyst generated by the ion generating device provided in the closed low temperature chamber. Oxidative decomposition of the air containing the components of suppresses the generation and transfer of odors of food,
Negative ions adhere to the food surface, and the food surface is negatively charged, so that adhesion of bacteria and mold can be prevented.

The freezer-refrigerator according to claim 5 is a freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in a low temperature compartment of the refrigerator compartment and connected to a high pressure generator. A plurality of first electrodes having different lengths, a dielectric provided between the first electrode and the second electrode, and forced circulation of cold air in the discharge space between the first electrode and the second electrode. Since the blower and the ion generator including the blower and the deodorizing catalyst provided between the first electrode and the second electrode are provided, it is possible to stably and simultaneously supply ions and ozone. it can.

The freezer-refrigerator according to claim 6 is a freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in a container whose upper part is sealed with a lid. , Forced circulation of cold air in the first electrode connected to the high-voltage generator, the dielectric provided between the first electrode and the second electrode, and the discharge space between the first electrode and the second electrode Since it is configured to include an ion generator composed of a blower and a blower and a deodorizing catalyst provided between the first electrode and the second electrode, there is no need to wrap food in a low temperature room or a vegetable room, or a simple method. Even if it is stored in a package, it is possible to store high-quality foods without the attachment of bacteria and mold and without the labor of packaging.

The refrigerator-freezer of claim 7 is a refrigerator-freezer having a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in each of the compartments to generate a high voltage of a relatively high frequency. Forced circulation of cold air in the first electrode connected to the high-voltage generator, the dielectric provided between the first electrode and the second electrode, and the discharge space between the first electrode and the second electrode. A blower to be provided, and an ion generator comprising the blower and a deodorizing catalyst provided between the first electrode and the second electrode, wherein the operating time of the blower is longer than the operating time of the high pressure generator. Therefore, it is possible to more stably and efficiently generate ions and prevent bacteria and mold floating in the refrigerator from adhering to foods and walls, and to preserve high-quality foods.

The freezer-refrigerator according to claim 8 is a freezer-freezer having a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high-voltage generator. And a first electrode with a sharp tip,
A dielectric provided between the first electrode and the second electrode,
A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode were provided. Since it is configured, the first electrode has rigidity that does not deform even if a slight load is applied, so that a stable ozone generation amount can be secured.

The freezer-refrigerator according to claim 9 is a freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high pressure generator. First electrode, a dielectric provided between the first electrode and the second electrode, a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and this blower An ion generator comprising a deodorizing catalyst provided between the first electrode and the second electrode is provided, the first electrode and the second electrode are attached to an integral fixture, and the first electrode is exposed only at the tip. With this configuration, it is possible to secure a stable ozone generation amount.

The freezer-refrigerator according to claim 10 is a freezer-freezer having a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and is provided in at least one of the compartments and connected to a high-voltage generator. A first electrode, and a dielectric having a hole forming a discharge space between the first electrode and the second electrode,
A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode were provided. Since the configuration is adopted, the gap distance can be kept constant and a stable ozone generation amount can be secured.

[Brief description of drawings]

FIG. 1 is a side sectional view of a refrigerator-freezer according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of a low temperature room of the refrigerator-freezer according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG. 2 of the refrigerator-freezer according to the first embodiment of the present invention.

FIG. 4 is an odor diffusion / deodorization curve diagram during deodorization operation control of the refrigerator / freezer according to the first embodiment of the present invention.

FIG. 5 is a side sectional view of a refrigerator-freezer according to a second embodiment of the present invention.

FIG. 6 is a circuit diagram of a deodorizing device for a refrigerator / freezer according to a second embodiment of the present invention.

FIG. 7 is a side sectional view of a refrigerator-freezer according to a third embodiment of the present invention.

FIG. 8 is a side sectional view of a low temperature room of a refrigerator-freezer according to a third embodiment of the present invention.

FIG. 9 is a block circuit diagram of a control device for a refrigerator / freezer according to a third embodiment of the present invention.

FIG. 10 is a block diagram of a control device for a refrigerator / freezer according to a third embodiment of the present invention.

FIG. 11 is a block circuit diagram of a control device for a refrigerator-freezer according to a fifth embodiment of the present invention.

FIG. 12 is a block diagram of a control device for a refrigerator / freezer according to a fifth embodiment of the present invention.

FIG. 13 is a sectional view of an ion generator for a refrigerator / freezer according to a sixth embodiment of the present invention.

FIG. 14 is a block circuit diagram of an ion generator for a refrigerator / freezer according to a sixth embodiment of the present invention.

FIG. 15 is a sectional view of a refrigerator-freezer according to a sixth embodiment of the present invention.

FIG. 16 is a cross-sectional view showing an ion generator of a refrigerator / freezer according to a sixth embodiment of the present invention as seen from the front direction.

FIG. 17 is a side sectional view of a refrigerator-freezer according to a seventh embodiment of the present invention.

FIG. 18 is a sectional view of an ion generator for a refrigerator / freezer according to a seventh embodiment of the present invention.

FIG. 19 is a block circuit diagram of an ion generator for a refrigerator / freezer according to a seventh embodiment of the present invention.

FIG. 20 is a sectional view of a refrigerator-freezer according to a seventh embodiment of the present invention.

FIG. 21 is a sectional view of a refrigerator-freezer according to Embodiment 9 of the present invention.

FIG. 22 is an output waveform diagram of the high voltage generator of the refrigerator / freezer according to Embodiment 10 of the present invention.

FIG. 23 is a diagram showing the influence of the pulse frequency on the ion concentration of the refrigerator-freezer according to Embodiment 10 of the present invention.

FIG. 24 is a sectional view of an ion generator for a refrigerator / freezer according to an eleventh embodiment of the present invention.

FIG. 25 is a block circuit diagram of an ion generator for a refrigerator / freezer according to an eleventh embodiment of the present invention.

FIG. 26 is a cross-sectional view of an ion generator for a refrigerator / freezer according to a twelfth embodiment of the present invention.

FIG. 27 is a sectional view of an ion generator for a refrigerator / freezer according to a thirteenth embodiment of the present invention.

FIG. 28 is a block circuit diagram of an ion generator for a refrigerator / freezer according to a thirteenth embodiment of the present invention.

FIG. 29 is an overall perspective view of a conventional refrigerator-freezer.

FIG. 30 is a side sectional view of a low temperature chamber of a conventional refrigerator-freezer.

[Explanation of symbols]

 1 Refrigerator / Refrigerator 5 Low greenhouse 22 Deodorizing box (ion generator) 23a High-pressure generator 23b First electrode 23c which is a fine metal wire 23c Second electrode which is a flat metal electrode 23d Dielectric 24 Discharge space 25 Blower 30 Vegetable case 31 Installation Tool 31a Cover 41 Microcomputer 44 Door open / close detection means 45 Door open / close frequency integration means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Nakagawa 3-18-1, Oga, Shizuoka City Shizuoka Manufacturing Co., Ltd.

Claims (10)

[Claims] 1. A freezer-refrigerator having a closed space such as a low greenhouse or a vegetable compartment, wherein the closed space is provided with a forced circulation type deodorizing device. 2. Deodorizing means for detecting the opening and closing of the refrigerator door, integrating means for integrating the door opening and closing frequency from the output of this detecting means, and frequent door opening and closing times based on the door opening and closing frequency for deodorization. The refrigerator-freezer according to claim 1, further comprising a control unit that controls the operation of the device. 3. A freezer compartment, a refrigerating compartment, which are partitioned by partition walls.
In a freezer-refrigerator provided with a vegetable compartment or the like, a first electrode provided in at least one of the respective compartments and connected to a high-voltage generator, and a dielectric provided between the first electrode and the second electrode A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator comprising the blower and the deodorizing catalyst provided between the first electrode and the second electrode. A freezer and refrigerator equipped. 4. A freezer compartment, a refrigerating compartment, which is partitioned by partition walls.
In a freezer-refrigerator provided with a vegetable compartment and the like, provided in a low temperature compartment of the refrigerating compartment, a first electrode connected to a high pressure generator,
A dielectric provided between the first electrode and the second electrode,
A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode were provided. Freezer refrigerator. 5. A freezer compartment, a refrigerating compartment, which are partitioned by partition walls,
In a freezer-refrigerator provided with a vegetable compartment and the like, provided in a low temperature compartment of the refrigerating compartment, a plurality of first electrodes having different lengths connected to a high-voltage generator, and between the first electrode and the second electrode. From the provided dielectric, a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and a deodorizing catalyst provided between the blower and the first electrode and the second electrode Refrigerator with an ion generator. 6. A freezing room, a refrigerating room, which is partitioned by a partition wall,
In a freezer-refrigerator equipped with a vegetable compartment and the like, a first electrode provided in a container whose upper part above the vegetable compartment is sealed with a lid and connected to a high-voltage generator, and between the first electrode and the second electrode. And a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and a deodorizing catalyst provided between the blower and the first electrode and the second electrode. Refrigerator with an ion generator consisting of. 7. A freezer compartment, a refrigerating compartment, which are partitioned by partition walls,
In a refrigerator having a vegetable compartment and the like, a first electrode provided in each of the compartments and connected to a high-voltage generator that generates a high voltage of a relatively high frequency, and between the first electrode and the second electrode. And a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and a deodorizing catalyst provided between the blower and the first electrode and the second electrode. Refrigerator / refrigerator in which the operating time of the blower is longer than the operating time of the high-pressure generator. 8. A freezer compartment, a refrigerating compartment, which are partitioned by partition walls,
In a freezer-refrigerator provided with a vegetable compartment, etc., provided in at least one of the respective compartments, connected to a high-voltage generator, a first electrode having a sharp tip, and the first electrode and the second electrode A dielectric provided therebetween, a blower for forcedly circulating cold air in the discharge space between the first electrode and the second electrode, and a deodorizing catalyst provided between the blower and the first electrode and the second electrode Refrigerator with an ion generator consisting of. 9. A freezer compartment, a refrigerating compartment, which is partitioned by a partition wall,
In a refrigerator having a vegetable compartment and the like, a first electrode provided in at least one of the chambers and connected to a high-voltage generator, and a dielectric provided between the first electrode and the second electrode. A blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, and an ion generator including the blower and a deodorizing catalyst provided between the first electrode and the second electrode The first electrode and the second electrode are attached to an integral fixture, and the first electrode is a refrigerator having a free end exposed. 10. A freezer-refrigerator provided with a freezer compartment, a refrigerator compartment, a vegetable compartment, etc. partitioned by partition walls, and a first electrode provided in at least one of the compartments and connected to a high-voltage generator. , A dielectric having a hole forming a discharge space between the first electrode and the second electrode, a blower for forcibly circulating cold air in the discharge space between the first electrode and the second electrode, the blower and the blower A refrigerator-freezer having an ion generator including a deodorizing catalyst provided between a first electrode and a second electrode.