JP2548245B2 - refrigerator - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a refrigerator that deodorizes the air in a refrigerator with ozone.

2. Description of the Related Art In recent years, a refrigerator has been proposed in which an ozone generator is installed in a refrigerator to deodorize the inside of the refrigerator.

An example thereof will be described below with reference to FIGS. 6 and 7. Reference numeral 1 denotes a refrigerator main body, which is composed of an outer box 2, an inner box 3 and a heat insulating material 4 filled between the boxes 2 and 3. A first partition wall 5 contains a cooler 6 and a blower 7 for forced ventilation therein, and a freezer compartment 8 is formed in the upper part. 9 is the first
A second compartment wall provided below the compartment wall 5 of the refrigerator compartment at the bottom
10 sections are formed. 11 is the first partition wall 5 and the second
It is a low temperature chamber partitioned between the partition walls 9 of FIG. Reference numeral 12 is a duct for guiding the air cooled by the cooler 6 to the freezer compartment 8, the refrigerator compartment 10 and the low temperature compartment 11 by the blower 7, and cold air flows into the inlets of the refrigerator compartment 10 and the low temperature compartment 11. Damper thermos 13 and 14 for adjusting the quantity are provided respectively. Reference numeral 15 is a control panel containing a damper thermo 13 of the refrigerating compartment, and a heat insulating material 16 internally forms a discharge air passage 17 communicating with the duct 12 via the damper thermo 13. Reference numeral 18 denotes a deodorizing device, which is attached to the upper part of the refrigerator compartment 10. Reference numeral 19 is a compressor provided at the bottom of the main body 1.

Next, the configuration of the deodorizing device 18 will be described. In the figure, 20 is a case, 21 is an air supply port for indoor air, and 22 is an exhaust port for deodorized air. 23 is a high voltage generator, 24 is a high voltage electrode 25,
Ozone generated gas composed of the low-voltage electrode 26, 27 is an ozone reaction chamber, 28 is a filter-like ozone decomposition catalyst, and Mn, Ni
And the like, its oxide, or its supported material. 29
Is an electric blower provided between the air supply port 21 and the exhaust port 22. The ozone generator 24 and the electric blower 29 are configured to operate in synchronization with, for example, the blower 7 for cooling the inside of the refrigerator.

Next, the operation of this structure will be described. Various foods are stored in the freezing room 8, the refrigerating room 10, and the low temperature room 11 and are maintained at appropriate temperatures, but when the room temperature rises, a thermo switch (not shown) works to compress the food. The fan 19 and the blower 7 are operated, and the cooler 6
The cold air cooled by the duct passes through the duct 12 and the freezer compartment 8 and the refrigerator compartment 1
0, sent to cold room 11. Here, cold air flows into the refrigerating compartment 10 via the damper thermostat 13 and then through the discharge air passage 17 in the control panel 15. At this time, the ozone generator 24
The electric blower 29 operates in synchronization with the operation of the blower 7 to generate a silent discharge between the electrodes 25, 26 to which a high voltage is applied between the high voltage electrode 25 and the low voltage electrode 26 by the high voltage generator 23. Then, the electric blower 29 of the deodorization device 18 changes the oxygen contained in the air (including the odor) flowing in through the air supply port 21 into ozone to generate ozonized air, and the ozone reaction chamber 27 The strong oxidizing action of ozone decomposes the malodorous component into another substance. Further, unreacted ozone in the ozone reaction chamber 27 is decomposed into oxygen by the ozone decomposition catalyst 28, and clean air is discharged from the exhaust port 22 into the refrigerating chamber 10.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above configuration, since the air that generates ozone and the air that deodorizes are the same air in the refrigerating chamber 10 that is supplied from the air supply port 21, refrigeration Due to the moisture generated from the food stored in the chamber 10 and the ingress of outside moisture by opening and closing the door, the humidity is relatively high and the ozone generation efficiency is not so good. For this reason, an ozone generator 24 having a relatively large capacity is required, and for this reason, it is necessary to enlarge the high pressure generator 23. As a result, there is a problem in that the deodorizing device 18 itself becomes large and the effective internal volume of the refrigerating room 10 is obstructed. Furthermore, there is also a problem that the amount of ozone generated also fluctuates in response to fluctuations in the humidity in the refrigerator compartment 10, the ozone concentration in the ozone reaction chamber 27 changes, and the deodorizing effect also changes. It was

In view of the above problems, the present invention provides a refrigerator having a deodorizing device having a stable deodorizing performance (ozone generation) without reducing the effective internal volume of the refrigerating compartment.

Means for Solving the Problems In order to solve the above problems, the refrigerator of the present invention has a first air inlet for sucking low-humidity air to be ozonized and a first air inlet, and A deodorizing device including a duct case having a second intake port for sucking air and an exhaust port, an ozone generator provided near the first intake port in the duct case, and a blower and an ozone decomposing catalyst. It is a thing.

Effect The present invention has the above-described configuration to suck low-humidity air from the first intake port and inhale air containing odor in the refrigerator from the second intake port. It produces ozone efficiently and stably without being affected, and decomposes and removes odors.

Example A refrigerator according to an example of the present invention will be described below with reference to the drawings. The same components as those of the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted. In FIGS. 1 to 5, reference numeral 40 is a refrigerator body. Reference numeral 17a is a cool air discharge air passage to the refrigerating compartment 10 in the control panel 15, and 17b is a control panel for supplying the first intake port 32 of the deodorizing device 30.
It is the cool air discharge air passage in 15. A duct case 31 has a first intake port 32, a second intake port 33, and an exhaust port 34. 35
Is a high-pressure generator, 36 is an ozone generator, and the first intake port 32
Is provided in the vicinity of. 37 is an ozone reaction chamber, 38 is a filter-like ozone decomposition catalyst, and 39 is an electric blower.

Next, the configuration of the ozone generator 36 will be described. 45
Is a flat plate-shaped induction electrode made of stainless steel-based metal, and a borosilicate glass dielectric 41 is applied to the periphery thereof. Further, a thin wire-shaped discharge electrode 42 made of tungsten metal is provided on one surface of the borosilicate glass dielectric 41. Also, the electrodes 42, 45 are connected to the high voltage generator 35 by the solder 43.
PVC-coated electric wire 44 from

The operation of this configuration will be described. The ozone generator 36 is of a creeping discharge type (conventionally a silent discharge type).
When a high frequency voltage is applied to the discharge electrode 42, a high frequency creeping streamer discharge stronger than the discharge electrode 42 occurs, and ozone is generated.

The low-humidity cool air discharged from the cool air discharge air passage 17b is sucked by the electric blower 39 from the first intake port 32, and ozone is generated by the action of the ozone generator 36. The generated ozone is sent to the ozone reaction chamber 37. At the same time, the air containing odor in the refrigerating chamber 10 is also sucked through the second intake port 33 and reacts with ozone in the ozone reaction chamber 37 to decompose and remove the malodorous component.

Further, unreacted ozone in the ozone reaction chamber 37 is decomposed by the ozone decomposition catalyst 38 into clean cool air, and flows into the refrigerating chamber 10.

Here, as for the relationship between the ozone generation amount of the ozone generator 36 and the absolute humidity, as shown in FIG. 5, when the absolute humidity is high, the ozone generation amount is low, and conversely, when the absolute humidity is low, the ozone generation amount is high. . Therefore, the ozone generator 36 is installed in the refrigerator 10
Since the cool air having a low absolute humidity is sucked through the first suction port 32 independently of the second suction port 33 for sucking the internal air, the ozone generation capacity is high. Therefore, unlike the conventional example, there is no need to sacrifice the effective internal volume of the refrigerating chamber 10 by enlarging the device in order to enhance the ozone generation capacity. Also, even if the type and amount of food to be stored, or the humidity inside the refrigerating room 10 becomes high or fluctuates due to opening and closing of the door, ozone generation always takes in cool cold air from the first intake port 32. Since it is stable, the deodorizing performance is also stable.

Although the borosilicate glass dielectric is used in the ozone generator 36, the same effect can be obtained by using a dielectric such as alumina.

EFFECTS OF THE INVENTION As described above, according to the present invention, the first intake port for sucking the low-humidity air to be ozoned, and the second intake port and the exhaust gas for sucking the air in the storage separately from the first intake port. A duct case having a mouth, an ozone generator provided near the first intake port in the duct case, a blower, and a deodorizing device composed of an ozone decomposition catalyst, without reducing the effective internal volume of the refrigerating chamber. It is possible to maintain stable deodorizing performance (ozone generation).

[Brief description of drawings]

FIG. 1 is a sectional view of a refrigerator showing one embodiment of the present invention, and FIG.
The figure is an enlarged sectional view of the deodorizing device in FIG. 1, FIG. 3 is an enlarged plan view of the ozone generator of FIGS. 1 and 2, and FIG. 4 is a sectional view of the ozone generator of FIG. 5 and 5 are diagrams showing the ozone generation efficiency of the ozone generators of FIGS. 3 and 4, FIG. 6 is a sectional view of a conventional refrigerator, and FIG. 7 is a deodorizing device in FIG. FIG. 30 ... Deodorizer, 31 ... Duct case, 32 ... First inlet, 33 ... Second inlet, 34 ... Exhaust, 36 ... Ozone generator, 38 ... Ozone decomposition catalyst, 39: Electric blower.

Claims (1)

(57) [Claims] 1. A first intake port for intake of low-humidity air to be ozonized, a second intake port for intake of air in the refrigerator, and an exhaust port separately from the first intake port. Deodorization consisting of a duct case, an ozone generator provided near the first intake port in the duct case, an electric blower provided downstream of the first intake port and the second intake port, and an ozone decomposition catalyst Refrigerator with a device.