KR100406093B1 - Deodorization device and refrigerator - Google Patents

Abstract

Provided are a deodorizing device capable of preventing the occurrence of condensation in a boost transformer, and a refrigerator provided with the deodorizing device.

The case 54 of the deodorizing device 11 installed in the refrigerator is divided into two, the transsil 57 and the electrode chamber 59, and the boost transformer 58 is disposed in the transsil 57 to provide the cold air in the refrigerator. Avoid exposure. The ozone generating electrode 60 for ozone generation and the catalyst 61 for differentiating ozone and odor components are disposed in the electrode chamber 59 through which circulation cold air flows.

Description

Deodorizer and Refrigerator {DEODORIZATION DEVICE AND REFRIGERATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing device arranged in a circulation path of cold air in a refrigerator and configured to deodorize the refrigerator by generating and decomposing ozone, and a refrigerator comprising the deodorizing device.

Some refrigerators are provided with a deodorizing device which oxidizes and deodorizes odor components, bacteria, etc. in the refrigerator by active oxygen generated by decomposing after generating ozone. In order to generate ozone, a high voltage of about 4 k to 5 kV is generated by a boost transformer and applied to an electrode of a discharge type along the surface, and corona discharge is generated to ionize an inert gas in the air.

However, in the conventional configuration, the boost transformer is disposed in the refrigerator together with the discharge electrodes, so that the cold air circulating in the refrigerator is exposed directly to the outside air introduced into the refrigerator when the door is opened or closed. Therefore, dew condensation may arise in a boost transformer by the temperature difference of cold and outside air in a refrigerator.

This invention is made | formed in view of the said situation, The objective is to provide the deodorizing apparatus which can prevent generation | occurrence | production of the dew condensation in a boost transformer, and the refrigerator provided with the deodorizing apparatus.

The deodorizing apparatus according to claim 1 is arranged in a circulation path of cold air in the refrigerator, and in the deodorization in the refrigerator by using ozone, a boost transformer is arranged in the first chamber configured to block the inflow of the cold air. And an ozone generating electrode electrically connected to the secondary side of the boost transformer, and ozone decomposing means for decomposing ozone generated by the ozone generating electrode in a second chamber configured to allow the cold air to flow. It is done.

In this configuration, the boost transformer is arranged in the first chamber to be cut off from the cold air circulating in the refrigerator, and only the ozone generating electrode is exposed to the circulating cold air in the second chamber. When the door of the refrigerator is opened or closed, the refrigerator is not directly exposed to the outside air introduced into the refrigerator. Therefore, the temperature change around the boost transformer is very alleviated, and condensation is prevented from occurring.

In this case, as described in claim 2, it is preferable that both surfaces of the discharge surface where the discharge of the ozone generating electrode is generated and the non-discharge surface that is the back side thereof are located in the second chamber. That is, in the discharge surface of the ozone generating electrode, surface temperature rises because discharge generate | occur | produces. Therefore, when the discharge surface and the non-discharge surface are in different environments, the temperature gradient of both becomes large and the thermal stress applied to the ozone generating electrode becomes large. Therefore, by positioning both surfaces in the second chamber, the temperature gradient between both becomes small and the thermal stress applied to the ozone generating electrode is reduced.

In addition, as described in claim 3, the ozone decomposing means may be disposed below the ozone generating electrode. That is, since ozone is heavier than air, it naturally moves downward from the position where it is generated. Therefore, if an ozone decomposing means is disposed below the ozone generating electrode, ozone decomposition and oxidative decomposition of odorous components accompanying it are performed efficiently. Will be.

In addition, as described in claim 4, the ozone generating electrode may be disposed on the inflow side of the circulating cold air, and the ozone decomposition means may be disposed on the outflow side of the circulating cold air. With this arrangement, the deodorizing action by the generation of ozone and its decomposition is efficiently performed in accordance with the flow of the circulating cold air.

In addition, as described in claim 5, a cover structure configured to cover the periphery of the ozone generating electrode may be provided. In such a configuration, the ozone generating electrode is also prevented from coming into direct contact with the outside air or the like that flows into the refrigerator when the door of the refrigerator is opened or closed, for example, and a sudden rise in temperature is suppressed.

In this case, as described in claim 6, a tightening structure for suppressing the flow rate may be provided at a portion where the ozone-containing air flows out of the lid structure. That is, generally, the discharge start voltage of a discharge electrode has the characteristic to rise with a change with time. For this reason, it is preferable that the voltage applied to the ozone generating electrode is also set in advance in anticipation of the rise of the discharge start voltage.

In this case, it is considered that in the initial stage of starting use, the generation concentration of ozone is relatively high. Therefore, by providing a tightening structure for suppressing the amount of outflow of ozone-containing air and preventing direct contact of air containing high concentration of ozone with the ozone decomposing means, deterioration of the ozone decomposing means and the like are suppressed.

In the above case, as described in claim 7, an ozone diffusion means for diffusing ozone-containing air may be provided between the ozone generating electrode and the ozone decomposition means. If comprised in this way, it can prevent that the air containing high concentration of ozone directly contacts ozone decomposing means similarly to Claim 6. Moreover, when used together with the structure of Claim 6, the effect of the said prevention can be heightened more.

The deodorizing apparatus according to claim 8 is arranged in a circulation path of cold air in the refrigerator, and is configured to be spaced apart from the transsil in which the boost transformer is arranged in performing deodorization in the refrigerator by using ozone. An electrode chamber in which an ozone generating electrode is electrically connected to a secondary side of the boost transformer; and a communication port communicating with the electrode chamber, configured to allow circulation of the circulating cold air, and to be supplied through the communication port. And a cold air circulation chamber in which ozone decomposition means for decomposing ozone is disposed.

That is, the boost transformer arranged in the trans chamber is cut off from the cold air circulating in the refrigerator as in claim 1. In the cold air distribution chamber, circulation cold air in the refrigerator is distributed, and ozone is supplied from the electrode chamber via a communication port. Therefore, the ozone generation electrode in the electrode chamber is also not directly in contact with the circulating cold air in the refrigerator or the outside air introduced into the refrigerator at the time of opening or closing the door, so that the temperature change in the ozone generation electrode is suppressed.

In this case, as described in claim 9, it is preferable to arrange the ozone decomposing means corresponding to the portion of the communication port. That is, in the cold air circulation chamber, the ozone and the air containing the odor are mixed in the vicinity where ozone generated in the electrode chamber is supplied through the communication port. Therefore, when the ozone decomposing means is disposed corresponding to the portion of the communication port, decomposition of the odor is efficiently performed.

In addition, as described in claim 10, both surfaces of the discharge surface where the discharge of the ozone generating electrode is generated and the non-discharge surface that is the rear surface may be placed in the electrode chamber. You can get it.

In addition, as described in claim 11, the ozone generated in the electrode chamber may be configured to drop to the cold air circulation chamber side by its own weight. In this configuration, the cold air is utilized by utilizing the property that ozone is heavier than air. It is possible to easily supply ozone to the distribution chamber.

In this case, as described in claim 12, the ozone generating electrode may be disposed in a direction parallel to the direction in which ozone falls on the cold air flow chamber side. When configured in this way, the ozone generating electrode generates By preventing the flow of ozone toward the cold air distribution chamber side, it is possible to supply ozone smoothly.

In the above-described case, as described in claim 13, the ozone generating electrode may be disposed so that its discharge surface is in the longitudinal direction, and if configured in this way, it is possible to prevent dust or the like from being deposited on the ozone generating electrode. Can be.

In addition, as described in claim 14, the primary terminal of the boost transformer may be disposed downward. If configured in this way, it is possible to prevent water from invading the primary side of the boost transformer by, for example, a supply wire.

In addition, as described in claim 15, the foreign matter intrusion prevention grill may be disposed at the inlet portion of the circulating cold air, and when configured in this way, foreign matter such as food may enter the inlet port and the deodorization efficiency can be prevented. .

Since the refrigerator of Claim 16 is equipped with the deodorizing apparatus in any one of Claims 1-15, the generation | occurrence | production of the dew condensation in a boost transformer is prevented, and the deodorizing effect in a refrigerator is maintained in the stable state.

In this case, as described in claim 17, it is preferable to arrange the deodorizing device on the return path side of the circulation cold air. That is, since the circulating cold air on the return path side has been circulated in the refrigerator until then, it is considered to contain more offensive odor components. Therefore, deodorization is performed efficiently in this way.

Further, as described in claim 18, when the cold air generated by the cooler common to the refrigerating compartment and the vegetable compartment is configured to circulate, and the deodorizing device is disposed at the boundary portion where the circulating cold air flows from the refrigerating compartment side to the vegetable compartment side. do. When comprised in this way, the part used as the dead space can be used efficiently, and the fall of the food storage volume in a refrigerator can be suppressed large.

In this case, as described in claim 19, a concave portion for preventing the intrusion of water may be formed in a portion of the bottom side of the refrigerating chamber in which the inlet of the circulation cold air in the deodorizer is located. Since moisture is trapped by the recessed part of the front side, intrusion of moisture into the deodorizer can be prevented.

Further, as described in claim 20, the deodorizing device may be disposed in the circulating cold air suction unit in the refrigerating chamber. That is, since the circulating cold air intake portion is located at the distal end of the return path of the circulating cold air, the circulating cold air reaching the portion includes the odor component at the maximum. Therefore, this structure further improves the deodorization efficiency.

The refrigerator according to claim 21 includes a boost transformer arranged in a transsil provided to block circulation cold air in the refrigerator, an electrode for ozone generation electrically connected to a secondary side of the boost transformer, and disposed outside of the transsil; An ozone decomposing means for decomposing ozone generated by the ozone generating electrode is provided, and only a part of the circulating cold air can be circulated to the deodorizing apparatus which deodorizes by circulating circulating cold air in the refrigerating chamber.

In this configuration, the boost transformer is arranged in the transsil to be cut off from the cold air circulating in the refrigerator, and only the ozone generating electrode is exposed to the circulating cold air outside the transsil. When the door of the refrigerator is opened or closed, the boost transformer is not directly exposed to the outside air introduced into the refrigerator. Therefore, the temperature change around the boost transformer is very alleviated, and condensation is prevented from occurring.

Since the circulating cold air introduced into the deodorizing device passes through the ozone decomposing means together with the ozone generated by the ozone generating electrode disposed outside the transsil, when the entire circulating cold air is introduced into the deodorizing device, the ozone decomposition is carried out. There is a fear that the circulation of the cold air is stagnant due to the resistance when passing through the means, and the cooling performance is lowered. Therefore, deodorization can be performed after only a part of circulating cold air flows through a deodorization apparatus, after preventing the fall of cooling performance.

In addition, if too much circulating cold air is passed through the deodorizing device, there is a possibility of exceeding the limit of the decomposition reaction rate of ozone in the ozone decomposing means, in which case ozone cannot be decomposed completely, resulting in a decrease in deodorization efficiency. At the same time, there is a possibility that ozone is excessively leaked into the refrigerator. Also in this respect, by making only a part of circulation cold air circulate to a deodorization apparatus, adjustment can be aimed at keeping deodorization efficiency appropriately.

In this case, as described in claim 22, it is preferable to set the flow rate per hour of circulation cold air with respect to a deodorizing apparatus to 4 times or more of the refrigerator compartment volume. In such a configuration, the circulation flow rate of the circulating cold air with respect to the deodorizing device is appropriately set in accordance with the volume of the refrigerating chamber, so that the deodorizing efficiency in the deodorizing device can be ensured satisfactorily.

In addition, as described in claim 23, the flow rate of the circulation cold air with respect to the deodorizer may be configured to be changeable. In this way, even when the amount of food or the like stored in the refrigerator is changed, By increasing or decreasing the circulation amount of circulation cold air, the deodorization efficiency in a deodorization apparatus can be maintained suitably.

In this case, as described in claim 24, the deodorizing apparatus may be provided with a dedicated fan for circulating the circulating cold air. When configured in this way, the circulating cold air is supplied to the deodorizing apparatus by the dedicated fan independently of the state of the cooling operation. It becomes possible to carry out deodorization by circulating.

In addition, as described in claim 25, the ratio between the circulation cold air circulated to the deodorizer and the circulation cold air circulated to other portions may be configured to be changeable. That is, even when the flow rate of circulating cold air in a refrigerator is constant, the quantity of circulating cold air circulated to a deodorizer can be changed relatively by changing the ratio of the quantity which distribute | circulates to a deodorizing apparatus and the quantity circulating to other parts. .

In addition, as described in claim 26, a switch for increasing the amount of air flow of the circulating cold air may be provided, and in this configuration, when the user desires to strongly deodorize, the deodorizing device is operated by operating the switch. It is possible to improve the deodorization efficiency by circulating a lot of circulating cold air.

Further, as described in claim 27, the deodorizing efficiency can be adjusted by intermittently operating the deodorizing device. In other words, if the amount of ozone generated in the deodorizer is constant, the concentration of ozone is relatively changed when the volume of the refrigerating chamber is different. Therefore, when the volume of the refrigerating chamber is small, the deodorizing efficiency is reduced with respect to the volume of the refrigerating chamber by shortening the operating time of the deodorizing device to reduce the operation rate (for example, operating for 36 seconds in one minute period, stopping for 24 seconds, etc.). It can be adjusted to be appropriate.

In addition, as described in claim 28, the operation time of the deodorizing device may be configured to be changed depending on the flow rate of the circulation cold air for the deodorizing device. For example, when the flow rate of circulation cold air with respect to a deodorization apparatus increases, deodorization efficiency will improve suitably when the operation time of a deodorization apparatus is lengthened accordingly. On the contrary, when the circulation amount of circulation cold air decreases, it is possible to prevent the stagnation of ozone in the deodorizer by shortening the operating time of the deodorizer.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the configuration of a deodorization apparatus as a first embodiment of the present invention.

Figure 2 is a longitudinal side view of the refrigerator.

Fig. 3 is a view corresponding to Fig. 2 showing a second embodiment of the present invention.

4 is a front view of the deodorizing device.

Fig. 5 is a perspective view showing the construction of a part of the deodorizer as the third embodiment of the present invention.

6 is a perspective view showing the structure of a lid structure and a tightening structure as a fourth embodiment of the present invention;

Fig. 7 is a perspective view showing a configuration in which a diffusion plate is added to the configuration in Fig. 6 as a fifth embodiment of the present invention.

FIG. 8 is a view corresponding to FIG. 2 showing a sixth embodiment of the present invention; FIG.

9 is a view corresponding to FIG. 1;

10 is a plan view of the deodorizer.

Fig. 11 is an enlarged vertical side view of a part centered on the deodorizer.

Fig. 12 is a view corresponding to Fig. 9 showing a seventh embodiment of the present invention.

Fig. 13 is an exploded perspective view of a deodorization device as an eighth embodiment of the present invention.

FIG. 14A is a longitudinal side view showing the main part of the refrigerator, and FIG. 14B is an enlarged view of the main part of FIG. 14A;

FIG. 15A is a longitudinal side view schematically showing the structure of an ozone generating electrode, FIG. 15B is a plan view of the ozone generating electrode, and FIG. 15C is an enlarged view showing the shape of the discharge electrode in FIG. 15B.

Fig. 16 is a diagram showing the results of a deodorization test using ammonia as an indicator gas when the air volume of the circulating cold air passing through the deodorizer is changed.

Fig. 17 shows the results of the sensory test in the case where the air volume of the circulating cold air passing through the deodorizer is changed.

FIG. 18 is a view corresponding to FIG. 14B showing a ninth embodiment of the present invention; FIG.

Fig. 19 is a front view of a louver portion showing a tenth embodiment of the present invention, Fig. 19A is a view showing a state in which the louver portion is sealed, and Fig. 19B is a view showing a state in which the louver portion is opened.

20 is a plan view of a partition plate with a deodorizing device according to an eleventh embodiment of the present invention, FIG. 20A is a view showing a state in which a distribution port part is sealed, and FIG. 20B is a view in which the distribution port part is opened. A diagram showing a state.

Fig. 21 is a twelfth embodiment of the present invention, showing an operation pattern in the case of intermittently operating a deodorizer;

<Explanation of symbols for the main parts of the drawings>

5, 5A: partition plate (cold room bottom plate) 6: cold storage room

11, 11A: deodorizer 38: cold air intake

57: trans chamber (1st room) 58: boosting transformer

58c: Primary terminal 58a, 58b: Secondary terminal

59: electrode chamber (second chamber) 60: electrode for ozone generation

61 catalyst (Ozone decomposition means) 63: cover structure

64 tightening structure 65 diffusion plate (ozone diffusion means)

66: deodorizer 67D: lower floor (cold air distribution room)

68a: communication port 71: transsil

72: electrode chamber 73: catalyst (ozone decomposition means)

75: partition plate (refrigeration chamber bottom plate) 75b: recess

76: grill 77, 77A: deodorizer

79b: ozone outflow hole (communication port) 80: transsil

81: electrode chamber 82: cold air circulation chamber

84: ozone generating electrode 96: fan (dedicated fan)

Hereinafter, a first embodiment of the present invention will be described with reference to Figs. In Fig. 2 showing a longitudinal side view of the refrigerator, the refrigerator main body 1 has a rectangular box shape in which the front side is opened, the inner box 3 is disposed in the outer box 2, and the outer box 2 and the inner side thereof. It is formed by filling a heat insulating material 4 such as urethane foam between the boxes 3. In addition, a horizontal synthetic resin partition plate (refrigeration chamber bottom plate) 5 is fixed to the inner surface of the inner box 3. The partition plate 5 forms the refrigerating chamber 6 in the upper part of the refrigerator main body 1, and the R door 7 is rotatably attached to the front end of the refrigerating chamber 6. As shown in FIG.

A plurality of protrusions (not shown) are formed on the upper surface of the partition plate 5, and the chilled case 8 is mounted on the plurality of protrusions. The chilled case 8 has a container shape in which the upper surface and the front surface are opened, and a cold air passage 9 is formed between the lower surface of the chilled case 8 and the upper surface of the partition plate 5. Reference numeral 10 also shows a lid for opening and closing the front of the chilled case 8.

In addition, a part of the partition plate 5 is opened, and the deodorizing device 11 is fitted in the opening. The support plate 100 is fixed to the lower side of the deodorizing device 11 to support the deodorizing device 11. In addition, a cold air passage 101 is formed between the partition plate 5 and the support plate 100.

In the inner box 3, it is located below the partition plate 5, and the heat insulation partition plate 12 is fixed. The heat insulating partition plate 12 is formed by storing foamed styrol in a case made of synthetic resin, and a vegetable chamber 13 is formed between the heat insulating partition plate 12 and the partition plate 5. The vegetable chamber 13 passes through the deodorizing device 11 arranged in the partition plate 5 into the refrigerating chamber 6 (functioning as part of the refrigerating chamber 6), and at the front end of the vegetable chamber 13 there is a V door. (14) is attached so that sliding to the front-back direction is possible.

The lower case 15 is accommodated in the vegetable chamber 13. The lower case 15 has a container shape in which an upper surface thereof is opened, and the upper case 16 is mounted on the lower case 15. The upper case 16 blocks a portion except the front end portion of the upper surface of the lower case 15 to form a container shape with an open upper surface. A lid 17 is attached to the upper surface of the upper case 16 so as to be openable and close, and a cold air passage 18 is formed between the lid 17 and the partition plate 5.

The freezer compartment 19 is formed below the heat insulation partition plate 12. The freezing chamber 19 is thermally decoupled from the upper vegetable chamber 13 and the refrigerating chamber 6, and the upper door 20 and the lower door 21 are moved forward and backward at the front end of the freezing chamber 19. It is mounted so as to be slidable, and the freezing cases 22 and 23 are accommodated in two stages up and down in the freezer compartment 19.

The machine room 24 is formed in the lower end part of the refrigerator main body 1, and the compressor 25 of a refrigeration cycle is arrange | positioned in the machine room 24. As shown in FIG. This compressor 25 is a reciprocating type which uses the compressor motor 26 as a drive source, and the compressor motor 26 is electrically connected to the main control apparatus (all not shown) via a drive circuit. The main control device mainly comprises a microcomputer and is arranged in the refrigerator main body 1.

The R cold air generating chamber 36 is formed in the rear part of the vegetable chamber 13, and the R evaporator 33 is accommodated in the R cold air generating chamber 36. As shown in FIG. The R cold air generating chamber 36 has a cylindrical cold air discharge port 37 and a louver-shaped cold air intake port 38, and the cold air discharge port 37 is inserted into the upper case 16.

An approximately L-shaped duct cover 39 is fixed in the refrigerator compartment 6. The duct cover 39 is made of synthetic resin, and the duct cover 39 is formed with a plurality of cold air discharge holes 40 opened in the refrigerating chamber 6. The duct cover 39 cooperates with the rear plate of the inner box 3 to form an L-shaped passage-shaped cold air duct 41, and the upper end of the cold air duct 41 is opened in the refrigerating chamber 6, and the cold air duct The lower end of 41 passes through the R cold air generating chamber 36.

The R fan motor 42 is accommodated in the R cold air generating chamber 36, and the R fan motor 42 is electrically connected to the main control device via a drive circuit (not shown). The R fan 43 is connected to the rotation shaft of the R fan motor 42, and cold air is circulated in the following path during the rotation of the R fan 43. Reference numeral 44 also denotes an R fan apparatus composed of an R fan motor 42 and an R fan 43. This R fan apparatus 44 is corresponded to the refrigerator for refrigerators, and cooperates with the R evaporator 33, and comprises the R cooling apparatus 45 corresponding to the refrigerator compartment cooling apparatus.

<About the circulation path of cold air in the refrigerator compartment 6 and the vegetable compartment 13>

A part of the air is discharged from the R cold air generating chamber 36 through the cold air discharge port 37 into the upper case 16 and through the cold air outlet hole 46 formed in the front end portion of the lid 17. ) Is released. And it flows downward along the front surface of the lower case 15, flows back along the lower surface of the lower case 15, and is returned to the R cold air production | generation chamber 36 through the cold air intake port 38. As shown in FIG. At this time, the R evaporator 33 is cold-aired by cooling the air, thereby cooling the inside of the vegetable chamber 13.

The remaining air is discharged into the refrigerating chamber 6 from the inside of the R cold air generating chamber 36 through the plurality of cold air discharging holes 40 and the upper end of the cold air duct 41, and the cold air passage below the chilled case 8 ( 9) flows into. And it flows into the vegetable chamber 13 through the deodorizing apparatus 11 and the cold air passage 101 which are fitted to the partition board 5, and flows inside the cold air passage 18 forward. Subsequently, it flows downward along the front surface of the lower case 15, flows backward along the lower surface of the lower case 15, and returns to the R cold air generating chamber 36 through the cold air intake port 38. At this time, the R evaporator 33 is cold-aired by cooling the air, thereby cooling the refrigerating chamber 6 and the vegetable chamber 13. That is, the deodorizing device 11 is arrange | positioned at the return path side of circulation cold air.

The F cold air generation chamber 47 is formed in the rear part of the freezing chamber 19, and the cold air discharge port 48 and the cold air intake port 49 are provided in the upper end part and the lower end part of the F cold air generation chamber 47. The F evaporator 34 and the F fan motor 50 are accommodated in the F cold air generating chamber 47, and the F fan motor 50 is electrically connected to the main control device via a drive circuit (not shown). .

The F fan 51 is connected to the rotation shaft of the F fan motor 50, and cold air is circulated in the following path during the rotation of the F fan 51. Reference numeral 52 also shows an F fan apparatus composed of an F fan motor 50 and an F fan 51. This F fan apparatus 52 corresponds to a freezer blower, and cooperates with the F evaporator 34 to form an F cooler 53 corresponding to a freezer cooler.

<About the circulation path of cold air in the freezing chamber 19>

Air is discharged into the freezing chamber 19 from the F cold air generating chamber 47 through the cold air discharge port 48, and returns to the F cold air generating chamber 47 through the cold air inlet 49. At this time, the F evaporator 34 is cold-aired by cooling the air, thereby cooling the inside of the freezing chamber 19.

1 is a perspective view showing the configuration of the deodorizing device 11. The deodorizing device 11 has a case 54 made of resin forming a rectangular box shape, but the lower side of FIG. 1 of the case 54 is open. The resin used for the case 54 may be either transparent or non-transparent, but in the present embodiment, the resin is transparent for convenience of explanation.

In the case 54, a transsil (first chamber) 57 is formed by partition walls 55 and 56 formed into partitions corresponding to one corner of the upper right side when viewed from the side of the front side of FIG. A small boosting transformer 58 is disposed inside the transsil 57. The boost transformer 58 is supplied with electricity from a primary terminal (not shown), and the secondary terminals 58a and 58b penetrate through the partition wall 56 and are exposed to the outside of the transsil 57. In addition, spaces other than the trans chamber 57 inside the case 54 form the electrode chamber (second chamber) 59.

The ozone generating electrode 60 which electrically discharges along the surface is electrically connected to the secondary terminal 58a, 58b. The ozone generating electrode 60 is composed of a rectangular thin plate-shaped ceramic plate 60a and two metal electrodes (not shown) connected to the secondary terminals 58a and 58b, respectively, and one electrode is a ceramic plate. It is exposed to the surface (left side of FIG. 1, discharge surface) of 60a (discharge electrode), and the other electrode is molded inside the ceramic plate 60a (induction electrode). In addition, a ceramic coating is applied to the surface of the discharge electrode to suppress deterioration over time due to discharge. When a high voltage of about 4.5 kV AC boosted by the boost transformer 58 is applied to these two metal electrodes, both metal electrodes are discharged through the ceramic plate 60a.

Further, the inlet port 54a for accommodating the air containing the odor in the refrigerator is opened in a rectangular shape on the left side of Fig. 1 of the case 54, and the outlet port 54b, which is an open portion below the case 54, is opened. ), A catalyst (ozone decomposition means) 61 is arranged to block the outlet port 54b.

The catalyst 61 is formed by forming a honeycomb (molded article) or a metal honeycomb made of a manganese oxide base or a metal honeycomb in a rectangular plate shape to form a core material, and is configured by fixing a catalyst component. By providing the honeycomb structure in this way, the contact area between the catalyst 61 and ozone or malodorous component is secured to be larger, and the decomposition efficiency is improved. The air deodorized in the catalyst 61 flows out to the lower side in FIG. In addition, in the figure, the honeycomb structure is shown by the rectangle for convenience of illustration.

The deodorizing apparatus 11 comprised as mentioned above is arrange | positioned at the partition board 5 so that the suction port 54a may be upward in FIG. 2, ie, it will be facing the refrigerator compartment 6 side.

Next, the operation of the present embodiment will be described. First, the deodorizing action of the deodorizing device 11 will be described. The deodorizer 11 acts electrochemically as a so-called plasma deodorizer. That is, when a high voltage is applied to the ozone generating electrode 60, corona discharge is generated, and an inert gas such as Ar (argon) contained in the air is ionized to enter a plasma state.

[Equation 1]

Ar → Ar ⁺ + e

When electrons generated by the ionization of formula 1 collide with oxygen atoms (O ₂ ), active oxygen (O) is generated.

[Equation 2]

O ₂ → O + O

Ozone (O ₃ ) is generated when the active oxygen (O) generated in the equation ( ₂ ) combines with the oxygen atom (O ₂ ).

[Equation 3]

O ₂ + O → O ₃

Ozone (O ₃ ) generated by the process of the above formulas (1) to ( ₃ ) is mixed with the air containing the odor flowing from the inlet port (54a) by cooling the cool air in the refrigerator. Then, when the ozone (O ₃₎ and the odor components adsorbed on the surface of the catalyst 61, the ozone (O ₃₎ is decomposed to generate active oxygen (O). Since active oxygen (O) has a very strong oxidizing power, the odor component is oxidized and decomposed. Air deodorized in this way flows out from the outlet port 54b.

The above deodorizing action is performed in the circulation path of the cold air in the refrigerating chamber 6 described above. That is, the odor-containing air flows into the inlet port 54a along with the cold air passage 9, and the air deodorized from the outlet port 54b flows out into the cold air passage 101 in the vegetable chamber 13. .

In this case, since the boost transformer 58 is arranged in the trans chamber 57, only the ozone generating electrode 60 which generates ozone is blocked from the cold air circulating in the refrigerator, and is disposed in the electrode chamber 59. They are exposed to cold air.

According to the present embodiment as described above, since the boost transformer 58 is disposed in the trans chamber 57, the boost transformer 58 is directly exposed to the cold air circulating in the refrigerator, or the R door 7 of the refrigerator is When opened and closed, it is not directly exposed to outside air flowing into the refrigerator. Therefore, the temperature change around the boost transformer 58 can be alleviated very much to prevent the occurrence of condensation, and the life of the boost transformer 58 can be prolonged to improve reliability.

In addition, since both surfaces of the discharge surface of the ozone generating electrode 60 and the non-discharge surface on the rear surface thereof are both positioned in the electrode chamber 59, the temperature gradient between both surfaces is made smaller, so that the ozone generating electrode ( 60) can reduce the thermal stress applied. Therefore, the lifetime of the ozone generating electrode 60 can also be extended. In addition, since the ozone generating electrode 60 was disposed on the inflow side of the circulating cold air, and the catalyst 61 was disposed on the outflow side of the circulating cold air, the ozone generation and the deodorization effect due to its decomposition were performed. It can run efficiently along the flow.

According to the present embodiment, the cold air generated by the common cooling device 45R is circulated in the refrigerating chamber 6 and the vegetable chamber 13, and the circulating cold air is stored in the vegetable chamber 13 from the refrigerating chamber 6 side. Since the deodorizing apparatus 11 is arrange | positioned at the boundary part which flows in to the side, the part which was a dead space can be used efficiently, and the reduction of the volume in a refrigerator can be suppressed considerably. Moreover, by arrange | positioning the deodorizing apparatus 11 to the return path side of circulation cold air in this way, it is possible to efficiently deodorize the air (return air) containing more bad smell components by circulating and conveying the inside of a refrigerator by cold air until then. have.

3 and 4 show a second embodiment of the present invention, in which the same parts as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted, and only different parts will be described below. In the second embodiment, the arrangement of the deodorizing device 11 is only different. That is, the partition plate 5 of the first embodiment was replaced with the partition plate 5A, and the plurality of cold air distribution ports (only one is shown) at the position where the deodorizing device 11 was disposed on the partition plate 5A. 62 is provided.

And 11 A of deodorizing apparatuses are arrange | positioned at the wall surface in which the cold air suction opening 38 of the vegetable chamber 13 is formed. In Fig. 4 showing the front side, the deodorizing device 11A is located below the cold air discharge port 37 and between two cold air intake ports 38, with the suction port 54a facing the inside of the vegetable chamber 13. It is arranged. 3, the shape of the case 54A of the deodorizing device 11A is slightly different from the case 54 of the deodorizing device 11. That is, the outlet port 54b in the first embodiment is clogged, and instead, the outlet port 54c is formed so as to communicate with the R cold air generating chamber 36 on the back side of the case 54A. In addition, a filter is disposed at the suction port 54a.

According to the second embodiment configured as described above, since the deodorizing device 11A is disposed at the portion where the cold air intake port 38 in the vegetable chamber 13 is formed, at the end of the return path of the circulating cold air, in the case of the first embodiment In comparison with the above, deodorization of air containing more malodorous components can be performed more efficiently. The catalyst 61 was disposed below the ozone generating electrode 60. That is, since ozone is heavier than air, since it moves naturally downward, when comprised in this way, ozone produced in the vicinity of the ozone generating electrode 60 will move to the direction of the catalyst 61 naturally. Therefore, decomposition of ozone and oxidative decomposition of the malodorous component accompanying it can be performed efficiently. Further, since the ozone generating electrode 60 is disposed so that its discharge surface is in the longitudinal direction (vertical direction), it is possible to prevent dust or the like from being deposited on the ozone generating electrode 60.

Fig. 5 shows a third embodiment of the present invention, and only a portion different from the second embodiment will be described. In the third embodiment, when the deodorizing device 11A is disposed as in the second embodiment, the cover structure 63 covers the periphery of the ozone generating electrode 60 disposed in the electrode chamber 59. That is, the lid structure 63 is formed so as to form a rectangular box shape in which the bottom surface side is opened by, for example, a resin, and is disposed so as to cover the ozone generating electrode 60 from above. In addition, the secondary terminals 58a and 58b of the boost transformer 58 penetrate the upper surface of the lid structure 63. In addition, the other component parts abbreviate | omit illustration.

According to the third embodiment configured as described above, by covering the periphery of the ozone generating electrode 60 with the cover structure 63, ozone generation to the outside air introduced into the refrigerator when the V door 14 of the refrigerator is opened and closed. The direct contact with the dragon electrode 60 can be prevented. Therefore, also in the ozone generating electrode 60, it is possible to prevent the sudden rise in temperature due to contact with the outside air, thereby further reducing the thermal stress can prolong the life of the ozone generating electrode 60.

6 shows a fourth embodiment of the present invention, and only a portion different from the third embodiment will be described. In the fourth embodiment, the rectangular plate-like fastening structure 64 is disposed on the bottom face side that is open in the lid structure 63 of the third embodiment. In the tightening structure 64, for example, three circular openings 64a are provided, and air containing ozone generated near the ozone generating electrode 60 flows out from the opening 64a of the tightening structure 64 to be lowered. To the catalyst 61.

That is, generally, the discharge start voltage of the ozone generating electrode 60 has the characteristic to rise with time-dependent change. For this reason, it is preferable to set the voltage applied to the ozone generating electrode 60 also high previously, anticipating the raise of a discharge start voltage. In doing so, it is considered that the generated concentration of ozone is relatively high in the initial stage of starting use.

Therefore, according to the fourth embodiment configured as described above, since the air containing ozone gradually flows out from the opening 64a to the outside, the air containing the high concentration of ozone is prevented from directly contacting the catalyst 61. This can suppress deterioration of the catalyst 61 and the like.

7 shows a fifth embodiment of the present invention, and only portions different from the fourth embodiment will be described. In the fifth embodiment, the diffusion plate (ozone diffusion means) 65 is disposed substantially parallel between the cover structure 63 in which the tightening structure 64 is disposed on the bottom face side and the catalyst 61.

According to the fifth embodiment configured as described above, the air containing ozone flowing out from the opening 64a of the tightening structure 64 is once blocked by the diffusion plate 65 and in the peripheral direction of the diffusion plate 65. It diffuses to move and then descends toward catalyst 61. Therefore, since the diffusion plate 65 can also prevent the air containing high concentration of ozone from directly contacting the catalyst 61, the effect of suppressing deterioration of the catalyst 61 can be further improved.

8 to 11 show a sixth embodiment of the present invention, in which the same parts as those of the first embodiment are denoted by the same reference numerals, and explanations thereof will be omitted. Only different parts will be described below. In the deodorizing device 66 in the seventh embodiment, the structure of the case 67 is different from the case 54 of the deodorizing device 11, and the refrigerating compartment 6 and the vegetable compartment 13 are substantially the same as in the first embodiment. It is arranged at the boundary part with).

First, the configuration of the deodorizing device 66 will be described with reference to FIGS. 9 to 11. The substantially rectangular box-shaped case 67 is divided into two vertical layers by partition walls 68 formed in the horizontal direction. The lower floor portion (cold air circulation chamber) 67D is provided with a suction port 67Da opened toward the front surface of the refrigerating chamber 6.

In the upper layer portion 67U, a transsil 71 is formed at one corner of the upper right portion of FIG. 10 by partition walls 69 and 70 in the vertical direction, and portions other than the transsil 71 are formed in the electrode chamber 72. ) A boost transformer 58 is disposed in the trans chamber 71. The secondary terminals 58a and 58b of the boost transformer 58 penetrate through the partition wall 69 and are exposed to the electrode chamber 72. The secondary terminal terminals 58a and 58b have ozone generating electrodes 60A. This is electrically connected. 60 A of ozone generating electrodes are arrange | positioned so that a discharge surface may become a vertical direction (vertical direction).

The partition wall 70 extends in the left direction in FIG. 10 so as to narrow the path where ozone generated near the ozone generating electrode 60A is toward the lower layer portion 67D. In addition, a communication port 68a communicating with the lower layer part 67D is formed at one corner of the lower right side of FIG. 10 in the partition wall 68. At the upper left corner of FIG. 10 of the upper layer portion 67U, a small intake port 67Ua for flowing air in the upper layer portion 67U is formed.

In FIG. 11, the cross section of the boundary part of the deodorizing apparatus 66, the refrigerator compartment 6, and the vegetable compartment 13 is enlarged. The lower right part of FIG. 11 of the lower layer part 67D is formed so that it may slightly protrude downward, and the bottom part part is open | released. And in order to block the open part, the catalyst (ozone decomposition means) 73 which is substantially the same structure as the catalyst 61 of 1st Example is arrange | positioned. In other words, the catalyst 73 is disposed directly below the corresponding portion of the communication port 68a.

In addition, the primary terminal 58c (only one is shown in FIG. 11) of the boost transformer 58 is disposed downward from the right end portion of FIG. 11 of the case of the boost transformer 58, and the primary terminal The supply wire 74 exposed and discharged from the outside of the deodorizing device 66 is connected to 58c.

The deodorizing device 66 configured as described above is incorporated in a partition plate (refrigeration chamber bottom plate) 75 forming a boundary portion between the refrigerating chamber 6 and the vegetable chamber 13 as shown in Figs. 8 and 11. The partition plate 75, which replaces the partition plate 5 of the first embodiment, is inclined in an inclined direction to an intermediate portion extending inward from the front side (left side in FIG. 8) of the refrigerating compartment 6. Has 75a. And the recessed part 75b is formed in the position just before it reaches the suction port 67Da of the deodorizing device 66 from the inclination part 75a.

A fitting hole for attaching the deodorizing device 66 is formed in the inward direction of the refrigerator from the recess 75b, and an outlet 67Db of the lower layer portion 67D of the deodorizing device 66 is formed in the fitting hole. Is fitted.

Next, the operation of the sixth embodiment will be described. The circulation path of cold air in the refrigerating chamber 6 and the vegetable chamber 13 is the same as that of the first embodiment, and the electrochemical action of the deodorizing device 66 is also the same. That is, the cold air circulating along the cold air passage 9 in the refrigerating chamber 6 is introduced into the inlet 67Da of the deodorizing device 66, and the lower layer 67D is circulated through the catalyst 73 and the outlet 67Db. It flows out into the vegetable chamber 13.

In the upper layer portion 67U of the deodorizing device 66, ozone is generated in the vicinity of the electrode 60A for ozone generation in the electrode chamber 72. As described above, when cold air flows through the lower layer portion 67D, air in the refrigerator flows into the electrode chamber 72 slightly through the intake hole 69. In doing so, the generated ozone returns to the partition wall 70, flows inward, and falls to the lower layer portion 67D via the communication port 68a. Then, the air in the refrigerator including ozone and odor is mixed in the vicinity of the communication port 68a, and the catalyst 73 performs decomposition of ozone and oxidative decomposition of the odor component. And the deodorized air flows out into the vegetable chamber 13 from the outlet 67Db.

As described above, according to the sixth embodiment, the boost transformer 58 is disposed in the trans chamber 71 formed in the upper layer portion 67U of the case 67, and the ozone generating electrode 60A is placed in the electrode chamber 72. The ozone generated in the electrode chamber 72 is supplied to the lower layer portion 67D via the communication port 68a, mixed with the odor-containing air circulating through the lower layer portion 67D, and the ozone is generated by the catalyst 73. And odor components.

Therefore, similarly to the first embodiment and the like, the temperature change of the boost transformer 58 is suppressed and the outside air introduced into the refrigerator during the circulation cold air in the refrigerator or the opening / closing of the R door 7 is also applied to the ozone generating electrode 60A. The temperature change can be suppressed by preventing direct contact. Further, since the catalyst 73 is disposed corresponding to the portion of the communication port 68a to which ozone is supplied, decomposition of ozone and odor can be efficiently performed.

In addition, according to the sixth embodiment, since the primary terminal 58c of the boost transformer 58 is disposed downward, moisture enters the primary side of the boost transformer 58 via the supply wire 74 or the like. Can be prevented. In addition, since the recessed part 75b was formed in the front part 75a of the partition plate 75 in the front side where the inflow opening 67Da of circulation cold air in the deodorizer 66 is located, a partition plate ( Moisture intended to be directed from 75 to the inlet 67Da can be supplemented by the recessed portion 75b to prevent intrusion of moisture into the deodorizing device 66.

12 shows a seventh embodiment of the present invention, and only portions different from the sixth embodiment will be described. In the seventh embodiment, a grill 76 is provided at the inlet port 67Da of the deodorizing device 66 to prevent foreign matter from entering. In such a configuration, it is possible to prevent food or the like from entering the inlet port 67Da and to prevent the deodorization efficiency from being lowered.

13 to 17 show an eighth embodiment of the present invention. The structure of the deodorizing device 77 in the eighth embodiment is slightly different from the structure of the deodorizing device 66 in the sixth or seventh embodiment. The deodorizing device 77 is disposed in the circulation path of the cold air between the refrigerating chamber 6 and the vegetable chamber 13 similarly to the first embodiment and the like, but replaces the partition plate 5 as shown in FIGS. 13 and 14. One partition plate 78 constitutes a part of the deodorizing device 77. In the case 79 of the deodorizing device 77, only the transsil 80 and the electrode chamber 81 are formed, and the case 79 is formed between the two in the state where the case 79 is stuck to the partition plate 78. The cold air circulation chamber 82 is formed by the space.

FIG. 13 is an exploded perspective view of the deodorizing device 77, FIG. 14A is a longitudinal side view of the arrangement of the deodorizing device 77 of the refrigerator, and FIG. 14B is an enlarged view showing the main part of FIG. 14A. The direction in which the boost transformer 58 is arranged in the transsil 80 formed on the front left side of the case 79 is 90 ° different from the arrangement direction in the sixth embodiment, and is relative to the inside direction of the refrigerator. It is arrange | positioned in the horizontal direction. The ozone generating electrode 84 is connected to the secondary terminals 58a and 58b of the boost transformer 58 penetrating through the partition wall 83 of the transsil 80 in place of the ozone generating electrode 60A. .

The case 79 portion located below the ozone generating electrode 84 has an inclined portion 79a (see Fig. 14B) slightly inclined toward the inner side of the electrode chamber 81, and the ozone generating electrode ( 84) Ozone generated in the vicinity is guided to the rear side of the electrode chamber 81. A plurality of ozone outflow holes 79b are formed in the case 79 portion at the back side of the electrode chamber 81, and the ozone is dropped into the cold air circulation chamber 82 below.

The upper cover 85 is attached to the upper portion of the case 79 to cover the trans chamber 80 and the electrode chamber 81. In addition, the louver (grill) 86 is formed in the front part of the case 79 so that it may extend downward, and when the case 79 adheres to the partition plate 78, the cold air | gas distribution chamber 82 will be provided. It is designed to prevent foreign matter from entering.

Next, the configuration on the partition plate 78 side will be described. In the partition plate 78 where the case 79 is stuck, a recessed mounting recess 87 is formed. On both sides of the mounting concave portion 87, distribution ports 88 and 88 for directly introducing the circulating cold air in the refrigerator into the vegetable chamber 13 without passing through the deodorizing device 77 are provided. In the mounting recess 87, when the user accidentally spills water or the like into the refrigerator on the front side of the site where the louver 86 of the case 79 is located, the water or the like penetrates into the deodorizing device 77. Drainage holes 89 are formed to prevent them from being made.

In the mounting recess 87, the inclined portion 90 inclined toward the rear side is also formed on the rear side of the portion where the louver 86 is located so as to prevent intrusion of foreign matter or water. At the end of the mounting recess 87, the ozone decomposition catalyst 73 is arranged such that the ventilation direction by the honeycomb shape is directed in the vertical direction as in the sixth embodiment or the like.

A soft tape (sponge, not shown) is wound around the outer circumferential portion of the ozone decomposition catalyst 73, and is pressed into the arrangement portion of the case 79. However, a lattice-shaped protective measure 91 is provided on the lower surface side of the arrangement portion. Formed. Since the core material of the ozone decomposition catalyst 73 has great brittleness, for example, in a manufacturing process or the like, if an operator inadvertently contacts the ozone decomposition catalyst 73 from the lower side of the case 79, it cracks or flaws. There is concern. Thus, a protective measure 91 is provided below the case 79 to prevent the ozone decomposition catalyst 73 from being damaged.

Further, ribs 92 are formed at the rear peripheral edge of the mounting recess 87 on which the case 79 is mounted so as to surround three peripheral surfaces of the case 79 in a mounted state. This rib 92 is also for suppressing intrusion of water or the like into the deodorizing device 77 from the surroundings. 14 shows the state where the ozone generating electrode 84 is removed.

Next, the structure of the ozone generating electrode 84 connected to the secondary side terminals 58a and 58b of the boost transformer 58 is described with reference to FIG. 15A is a longitudinal side view schematically showing the structure of the ozone generating electrode 84 (the thickness dimension of the ceramic substrate is exaggerated than actually), and FIG. 15B is a plan view of the ozone generating electrode 84. The ozone generating electrode 84 is basically discharged along the same surface as the ozone generating electrode 60 or the like in the first embodiment or the like, and is an induction electrode 94 disposed inside the ceramic substrate 93. ) And a discharge electrode 95 disposed in the vicinity of the surface (discharge surface) of the ceramic substrate 93, but the shape of the discharge electrode 95 is characteristic.

FIG. 15C is an enlarged view of the shape of the discharge electrode 95 in FIG. 15B. The discharge electrodes 95 are provided with projections 95a having a shape projecting in the plurality of places in the vertical direction in Fig. 15C. Since the electric field concentrates on this part by forming the protrusion part 95a of such a shape, the discharge start voltage in the ozone generating electrode 84 acts to fall.

Next, the operation of the eighth embodiment will be described with reference to Figs. When cold air in the refrigerator circulates in the refrigerating compartment 6 and the vegetable compartment 13, most of the cooling air (for example, about 95%) is formed in the partition 88 and the discharge port 88 or the drainage hole 89 formed as described above. It flows directly into the vegetable chamber 13 side from the refrigerating chamber 6 side via the via. Then, about 5% of the circulating cold air is adjusted via the deodorizer 77. Specifically, if the total air volume of the cold air circulating in the refrigerating chamber 6 and the vegetable chamber 13 is 40 m 3 / H, about 2 m 3 / H is introduced into the deodorizing device 77. If the combined volume of the refrigerating chamber 6 and the vegetable chamber 13 is 350 liters, the cool air of the amount of air, which is about six times the volume per hour, flows through the deodorizer 77.

The energization of the step-up transformer 58 of the deodorizing device 77 is performed, and ozone generated near the ozone generating electrode 84 is heavier than air. Therefore, the inclined portion 79a of the electrode chamber 81 is removed by its own weight. Therefore, it moves to the rear side and falls to the cold air | cooled air flow chamber 82 below through the ozone outflow hole 79b. The circulating cold air flowing into the cold air flow passage 82 of the deodorizing device 77 via the louver 86 is directed toward the ozone decomposition catalyst 73 in a mixed state with ozone falling from above. The odor component and the like contained in the circulating cold air are oxidatively decomposed by the active oxygen of ozone decomposed in the same manner as in the above embodiments.

Here, FIG. 16 shows the result of the deodorization test using ammonia as the indicator gas when the air volume of the circulating cold air passing through the deodorizer 77 is changed. When the amount of air passing through the deodorizing device 77 per hour becomes four times or more with respect to the volumes of the refrigerating chamber 6 and the vegetable chamber 13, it is within 60 minutes that the residual ratio of ammonia becomes 10% or less.

17 shows the results of the sensory test in the case of changing the air volume of the circulating cold air passing through the deodorizer 77 as in FIG. In the test, 200 g of retort curry is stored in the refrigerator compartment 6 in an open state and taken out after 24 hours, and then, after 5 hours has elapsed, the odor in the refrigerating compartment 6 is taken, and the odor level is adjusted in three stages (food frailty, 1: almost felt, 2: felt minimally, 3: felt surely). Also from this result, when the passage air volume per hour becomes four times or more with respect to the volumes of the refrigerating chamber 6 and the vegetable chamber 13, the deodorizing effect is assured.

As described above, according to the eighth embodiment, the ozone generated in the electrode chamber 81 of the deodorizing device 77 is caused to fall to the cold air circulation chamber 82 side by its own weight, and thus the cold air distribution chamber 82 is used. It is possible to easily supply ozone to the. And since the ozone generation electrode 80 was arrange | positioned in the direction parallel to the direction in which ozone falls to the cold air | atmosphere distribution chamber 82 side, the ozone which the ozone generation electrode 84 generate | occur | produced is cold air | gas distribution chamber ( It is possible to supply ozone smoothly without disturbing the flow intended to be directed to 82).

In addition, according to the eighth embodiment, since only a part of the circulating cold air is circulated to the deodorizing device 77, the deodorizing is performed after preventing the deterioration of the cooling performance of the refrigerator without excessively interrupting the circulation of the cold air. You can run In addition, it is possible to prevent cold air having a quantity of air that exceeds the ozone decomposition reaction rate of the ozone decomposition catalyst 73 in the deodorizer 77 from flowing to the deodorizer 77, so that adjustment can be made to maintain the deodorization efficiency appropriately. It becomes possible.

And since the circulation volume per hour of circulation cold air with respect to the deodorizing apparatus 77 was set to four times or more (6 times) of the volume of the refrigerator compartment 6 and the vegetable compartment 13, The flow rate of the circulation cold air with respect to the deodorizing apparatus 77 is set suitably according to a volume, and the deodorizing efficiency in the deodorizing apparatus 77 can be ensured favorably.

Further, according to the eighth embodiment, even when the ozone generating electrode 84 exhibits a tendency that nitrogen oxide or the like is deposited on the surface of the discharge electrode 95 to make it difficult to discharge by repeating the discharge, the projections 95a are removed. Since the discharge start voltage is substantially lowered by the formation, the actual voltage drop becomes a margin, and as a result, the discharge function can be maintained for a long time.

18 shows a ninth embodiment of the present invention, and only portions different from the eighth embodiment will be described. In the ninth embodiment, the fan 96 dedicated to the deodorizing device 77 is disposed on the circulation cold air outlet side of the deodorizing device 77, that is, the lower side of the protection measure 91 of the case 79. The fan 96 can operate independently of the R fan 43 for circulating cold air, and can be switched ON / OFF by a user's operation (for example, by installing a switch in the R door 7 of the refrigerator). It is possible to increase or decrease the amount of air.

According to the ninth embodiment configured as described above, by providing the fan 96 dedicated to the deodorizing device 77, the air volume of the cold air circulated to the deodorizing device 77 regardless of the cooling operation state of the refrigerating chamber 6 is provided. For example, when the amount of food in the refrigerator is small and the user does not feel the need to perform deodorization, the fan 96 is stopped, and when the amount of food in the refrigerator increases, the user feels the need to perform deodorization. The deodorizing device 77 can be deodorized by operating the 96. In addition, since the fan 96 can increase or decrease the amount of air flowing through the deodorizer 77, the deodorization efficiency when the user drives the deodorizer 77 can be adjusted.

If deodorization is unnecessary, stopping the fan 96 and stopping the energization of the boost transformer 58 also can reduce power consumption and prolong the life of the ozone decomposition catalyst 73. It becomes possible.

19 shows a tenth embodiment of the present invention, and only portions different from those of the eighth embodiment will be described. In the tenth embodiment, the deodorizing device 77A is configured by attaching the shutter 97 rotatable with respect to the inflow direction of the circulation cold air to the louver 86 portion of the deodorizing device 77. The rotation of the shutter 97 is performed by, for example, providing an operator (not shown) such as a lever at a position at which the user can operate the front portion of the deodorizing device 77A, and operating the operator.

FIG. 19 is a front view of the louver 86 portion, FIG. 19A shows a state where the louver 86 portion is sealed by making the shutter 97 approximately perpendicular to the inflow direction of the circulating cold air, and FIG. 19B shows the shutter 97 ) Is shown in a state where the louver 86 portion is opened by making it approximately parallel to the inflow direction of the circulating cold air.

According to the tenth embodiment configured as described above, even when the amount of circulating cold air in the refrigerator is constant, the amount of cold air circulated to the deodorizing device 77A by rotating the shutter 97 and the vegetable compartment directly through the distribution port 88 are obtained. The ratio of the amount of cold air circulated to side (13) can be changed, and deodorization efficiency can be adjusted.

Fig. 20 shows an eleventh embodiment of the present invention, and only a portion different from the eighth embodiment will be described. In the eleventh embodiment, the shutters 98 having the same function as the shutters 97 provided in the deodorizing device 77A in the tenth embodiment in the distribution ports 88 and 88 provided in the partition plate 78. Install it.

Fig. 20 is a plan view of the partition plate 78 with the deodorizing device 77 attached thereto, and Fig. 20A shows that the flow outlet 88 is sealed by making the shutter 98 substantially perpendicular to the inflow direction of the circulating cold air. A state is shown, and FIG. 20B shows a state where the flow port 88 is opened by making the shutter 98 substantially parallel to the inflow direction of the circulating cold air.

According to the eleventh embodiment configured as described above, even in the case where the air volume of the circulating cold air in the refrigerator is constant as in the tenth embodiment, the amount of cold air to be distributed to the deodorizer 77 by rotating the shutter 98 and the distribution port 88 The ratio of the amount of cold air to be circulated directly to the vegetable chamber 13 side can be changed relatively, and the deodorization efficiency can be adjusted.

Figure 21 shows a twelfth embodiment of the present invention. The refrigerator has various volumes in the refrigerator (in this case, the volumes of the refrigerator compartment 6 and the vegetable compartment 13) depending on the product. Therefore, when the same deodorizing device 77 is applied to a refrigerator having a different volume in the refrigerator, the ozone concentration is increased in the refrigerator having a small volume in the refrigerator. For example, even when any abnormality occurs in the ozone decomposition catalyst 73 so that ozone cannot be decomposed normally, the ozone concentration should be suppressed to 0.1 ppm or less in order to ensure safety.

Thus, the deodorizing efficiency is adjusted by intermittently operating the deodorizing device 77 in accordance with the volume in the refrigerator of each refrigerator. For example, after the deodorizing device 77 is operated for 36 seconds in one minute period as shown in Fig. 21, the driving pattern is stopped for 24 seconds (in this case, 60% of driving rate). . In this way, by operating the deodorizing device 77 intermittently, it can be adjusted so that the deodorizing efficiency of ozone generated by the deodorizing device 77 with respect to the volume in the refrigerator of the refrigerator compartment is appropriate. Therefore, it becomes possible to apply the deodorizing apparatus 77 to a plurality of refrigerators with different volumes in the refrigerator in common.

The present invention is not limited to the above-described embodiments and the embodiments described in the drawings, and the following modifications or extensions are possible.

In the first embodiment, the discharging surface of the ozone generating electrode 60 may be arranged in the longitudinal direction. If comprised in this way, the volume of dust can be prevented similarly to 2nd Example.

The diffusion plate 65 of the fifth embodiment may be provided in the configuration of the third embodiment. Note that the ozone diffusion means is not limited to the diffusion plate 65, and the shape may be used as long as it serves to diffuse ozone.

In the fifth embodiment, the concave portion 75b may be provided as necessary.

In the sixth embodiment, the catalyst 73 may not necessarily be disposed corresponding to the portion of the communication port 68a. In addition, the primary terminal 58c of the boost transformer 58 does not necessarily need to be disposed downward.

The location of the deodorizing device is not limited to the illustrated one, and may be changed as appropriate.

In the ninth embodiment, the fan 96 may be disposed on the front side of the louver 86 of the deodorizer 77.

In addition, a switch for increasing the air volume of the circulating cold air may be provided, for example, in the R door 7, and when configured in this way, when the user desires to strongly deodorize, the deodorizing device ( 77) it is possible to improve the deodorization efficiency by circulating a lot of circulating cold air.

The operation time of the deodorizer 77 may be changed in accordance with the flow rate of the circulation cold air with respect to the deodorizer 77. For example, in the case where the circulation flow rate of the circulating cold air with respect to the deodorizing device 77 increases, the deodorizing efficiency is appropriately improved by lengthening the operating time of the deodorizing device 77 accordingly. On the contrary, when the circulation volume of circulating cold air is reduced, it is possible to prevent the stagnation of ozone in the deodorizing device 77 by shortening the operating time of the deodorizing device 77.

Since this invention is as having demonstrated above, the following effects are acquired.

In the deodorizing apparatus according to claim 1, the boosting transformer is arranged in the first chamber to be cut off from the cold air circulating in the refrigerator, and only the ozone generating electrode is exposed to the circulating cold air in the second chamber. When the door of the refrigerator is opened or closed, the refrigerator is not directly exposed to the outside air introduced into the refrigerator. Therefore, the temperature change around the boost transformer is very alleviated, and condensation is prevented from occurring.

According to the deodorizing apparatus according to claim 2, since both surfaces of the discharge surface where the discharge of the ozone generating electrode is generated and the non-discharge surface that is the back side thereof are placed in the second chamber, the temperature gradient between both is reduced to reduce the temperature of the ozone generating electrode. It can reduce the thermal stress applied to, and prolong the life.

According to the deodorizing apparatus of claim 3, since the ozone decomposing means is disposed below the ozone generating electrode, the decomposition of ozone and the oxidative decomposition of the odor component accompanying it can be performed efficiently.

According to the deodorizing apparatus according to claim 4, the ozone generating electrode is arranged on the inflow side of the circulating cold air, and the ozone decomposing means is arranged on the outflow side of the circulating cold air. Can run efficiently according to the flow of.

According to the deodorizing apparatus according to claim 5, since the cover structure is formed so as to cover the periphery of the ozone generating electrode, the external air or the like introduced into the refrigerator at the time of opening / closing the door is also in direct contact with the ozone generating electrode. It is possible to prevent the sudden rise in temperature.

According to the deodorizing apparatus according to claim 6, since a tightening structure for suppressing the flow rate is provided at a portion where the ozone-containing air flows out of the cover structure, air containing high concentrations of ozone is prevented from directly contacting the ozone decomposing means. The degradation of the ozone decomposing means can be suppressed.

According to the deodorizing apparatus according to claim 7, since an ozone diffusing means for diffusing ozone-containing air is provided between the ozone generating electrode and the ozone decomposing means, air similarly to claim 6 contains high concentration of ozone in the ozone decomposing means. Can prevent direct contact.

According to the deodorizing apparatus according to claim 8, the boosting transformer disposed in the transsil is blocked from cold air circulating in the refrigerator as in claim 1, and the circulating cold air in the refrigerator is circulated in the cold air distribution chamber, and a communication port is provided from the electrode chamber. Ozone is supplied via Therefore, the ozone generating electrode in the electrode chamber is also not directly in contact with the circulating cold air in the refrigerator or the outside air introduced into the refrigerator at the time of opening or closing of the door, so that the temperature change in the ozone generating electrode can be suppressed.

According to the deodorizing apparatus according to claim 9, since the ozone decomposing means is disposed corresponding to the portion of the communication port, decomposition of the odor can be efficiently performed.

According to the deodorizing apparatus according to claim 10, since both surfaces of the discharge surface where the discharge of the ozone generating electrode is generated and the non-discharge surface that is the rear surface thereof are placed in the electrode chamber, the structure of claim 8 or 9 also includes claims 2 and 2. The same effect can be obtained.

According to the deodorizing apparatus according to claim 11, since ozone generated in the electrode chamber is dropped to the cold air circulation chamber side by its own weight, ozone is easily supplied to the cold air distribution chamber by utilizing the property that ozone is heavier than air. It becomes possible.

According to the deodorizing apparatus according to claim 12, since the ozone generating electrode is arranged in a direction parallel to the direction in which ozone falls on the cold air circulation chamber side, when configured in this way, the ozone generated by the ozone generating electrode is By preventing the flow toward the cold air distribution chamber side, ozone can be smoothly supplied.

According to the deodorizing apparatus according to claim 13, since the electrode for ozone generating is disposed so that its discharge surface is in the longitudinal direction, it is possible to prevent the dust and the like from being deposited on the ozone generating electrode.

According to the deodorizing apparatus according to claim 14, since the primary terminal of the boost transformer is disposed downward, it is possible to prevent water from invading the primary side of the boost transformer by, for example, a supply wire or the like.

According to the deodorizing apparatus according to claim 15, since the foreign matter intrusion prevention grill is disposed at the inlet portion of the circulation cold air, foreign matters such as food can enter the inlet port and the deodorization efficiency can be prevented.

According to the refrigerator of Claim 16, since the deodorization apparatus of any one of Claims 1-12 is provided, the dew condensation in a boost transformer is prevented, and the deodorizing effect in a refrigerator is continued in a stable state.

According to the refrigerator of Claim 17, since the deodorizer is arrange | positioned at the return path side of circulation cold air, the odor of the air containing more odor components can be performed efficiently.

According to the refrigerator according to claim 18, since the cold air generated by the cooler common to the refrigerating compartment and the vegetable compartment is circulated, the deodorizing device is disposed at a boundary portion where the circulating cold air flows from the refrigerating compartment side to the vegetable compartment side. The part which was a dead space can be used efficiently, and the fall of the food storage volume in a refrigerator can be suppressed large.

According to the refrigerator of Claim 19, since the recessed part for preventing moisture intrusion is formed in the part of the refrigerator compartment bottom plate at the front side where the inlet of circulation cold air in a deodorizer is located, the moisture which wishes to face an inlet is captured by the recessed part. Thus, intrusion of moisture into the deodorizing device can be prevented.

According to the refrigerator of Claim 20, since a deodorization apparatus is arrange | positioned at the circulating cold air suction part in a refrigerating compartment, deodorization efficiency can be improved further by placing a deodorizer at the terminal part of the return path of circulating cold air.

According to the refrigerator of claim 21, the boost transformer is arranged in the transsil to be cut off from the cold air circulating in the refrigerator, and only the ozone generating electrode is exposed to the circulating cold air outside the transsil. When the door of the refrigerator is opened or closed, the boost transformer is not directly exposed to the outside air introduced into the refrigerator. Therefore, the temperature change around the boost transformer can be alleviated very much to prevent the occurrence of condensation and prolong the service life.

Since only a part of the circulating cold air is circulated to the deodorizing apparatus for deodorizing by circulating the circulating cold air in the refrigerating chamber, the deodorization can be performed after preventing the deterioration of the cooling performance. Moreover, adjustment can be aimed at so that deodorization efficiency can be maintained suitably.

According to the refrigerator according to claim 22, since the amount of circulation of circulating cold air for the deodorizing device is set to 4 times or more of the refrigerating chamber volume, the amount of circulation of circulating cold air for the deodorizing device is appropriately set according to the volume of the refrigerating chamber. The deodorization efficiency in can be ensured favorably.

According to the refrigerator of Claim 23, since the circulation amount of circulation cold air with respect to a deodorizer is comprised so that change is possible, even if the quantity of food etc. which are stored in a refrigerator changes, the circulation quantity of circulation cold air with respect to a deodorization device is changed accordingly. By doing so, the deodorization efficiency in a deodorization apparatus can be maintained suitably.

According to the refrigerator according to claim 24, since the deodorizing device is provided with a dedicated fan for circulating cold air, it is possible to carry out deodorization by circulating cold air to the deodorizing device by a dedicated fan independently of the state of the cooling operation. It becomes possible.

According to the refrigerator of Claim 25, since the ratio of the circulation cold air which distributes to the deodorizing apparatus and the circulation cold air which distribute | circulates to another part is comprised so that change is possible, even when the flow volume of circulation cold air in a refrigerator is constant, The amount of circulation cold air circulated to the deodorizer can be relatively changed by changing the ratio of the amount circulated to the deodorizer and the amount circulated to other portions.

According to the refrigerator according to claim 26, since a switch for increasing the amount of air flow of circulating cold air is provided, when the user desires to perform deodorization strongly, a lot of circulating cold air is circulated by the deodorizing device by operating the switch. To improve the deodorization efficiency.

According to the refrigerator of claim 27, the deodorizing efficiency can be adjusted by intermittently operating the deodorizing device, so that the deodorizing efficiency can be adjusted appropriately with respect to the volume of the refrigerating chamber.

According to the refrigerator according to claim 28, since the operating time of the deodorizing device is changed according to the circulation amount of circulating cold air for the deodorizing device, for example, when the circulation amount of circulating cold air for the deodorizing device is increased, The longer the operation time, the better the deodorization efficiency. On the contrary, when the circulation amount of circulation cold air decreases, it is possible to prevent the stagnation of ozone in the deodorizer by shortening the operating time of the deodorizer.

Claims (28)

A deodorizing apparatus disposed in a circulation path of cold air in a refrigerator and performing deodorization in the refrigerator by using ozone, Place a boost transformer in a first chamber configured to block the inflow of cold air, An ozone generating electrode electrically connected to a secondary side of the boost transformer, and ozone decomposing means for decomposing ozone generated by the ozone generating electrode is disposed in a second chamber configured to allow the cold air to flow; Deodorizer. The deodorizing apparatus according to claim 1, wherein the ozone generating electrode is located in both sides of a discharge surface on which discharge occurs and a non-discharge surface that is a back surface thereof in a second chamber. The deodorizing device according to claim 1 or 2, wherein the ozone decomposing means is disposed below the ozone generating electrode. The deodorizing apparatus according to claim 1 or 2, wherein the ozone generating electrode is arranged on the inflow side of the circulation cold air, and the ozone decomposition means is arranged on the outflow side of the circulation cold air. The deodorizing apparatus according to claim 1 or 2, further comprising a cover structure configured to cover the periphery of the ozone generating electrode. The deodorizing device according to claim 5, wherein a tightening structure for suppressing the flow rate is provided at a portion where the ozone-containing air flows out of the lid structure. The deodorizing apparatus according to claim 1 or 2, further comprising ozone diffusing means for diffusing ozone-containing air between the ozone generating electrode and the ozone decomposing means. A deodorizing apparatus disposed in a circulation path of cold air in a refrigerator and performing deodorization in the refrigerator by using ozone, A transsil in which the boost transformer is disposed, An electrode chamber configured to be spaced apart from the trans chamber, and having an ozone generating electrode electrically connected to a secondary side of the boost transformer; A deodorizing device comprising a communication port communicating with the electrode chamber, configured to allow circulation of the cold air, and an ozone decomposing means arranged to decompose ozone supplied through the communication port. . The deodorizing apparatus according to claim 8, wherein the ozone decomposing means is disposed corresponding to the portion of the communication port. 10. The deodorizing apparatus according to claim 8 or 9, wherein the ozone generating electrode is located at both sides of a discharge surface on which discharge occurs and a non-discharge surface that is a rear surface thereof. The deodorizing apparatus according to claim 8 or 9, wherein the ozone generated in the electrode chamber is configured to drop to the cold air circulation chamber side by its own weight. 12. The deodorizing apparatus according to claim 11, wherein the ozone generating electrode is disposed in a direction parallel to the direction in which ozone falls to the cold air circulation chamber side. The deodorization apparatus according to claim 1 or 8, wherein the discharge face of the ozone generating electrode is arranged in the longitudinal direction. The deodorizing device according to claim 1 or 8, wherein the primary terminal of the boost transformer is disposed downward. The deodorizing device according to claim 1 or 8, wherein a grill for preventing foreign matter from entering is arranged at an inlet portion of the circulation cold air. A refrigerator comprising the deodorizing device according to claim 1. The refrigerator according to claim 16, wherein a deodorizing device is disposed on the return path side of the circulation cold air. The cold air generated by the cooler common to the refrigerating compartment and the vegetable compartment is circulated, and a deodorizing device is disposed at a boundary portion at which the circulating cold air flows from the refrigerating compartment side to the vegetable compartment side. Refrigerator. 19. The refrigerator according to claim 18, wherein a recess for preventing water intrusion is formed in a portion of the bottom surface of the refrigerating chamber in which the inlet of the circulating cold air in the deodorizer is located. 18. The refrigerator according to claim 17, wherein a deodorizing device is arranged at a circulating cold air suction part in the refrigerating compartment. A boost transformer arranged in a transsil provided to block circulating cold air in the refrigerator, an ozone generating electrode electrically connected to a secondary side of the boost transformer, and disposed outside of the transsil, and the ozone generating electrode A refrigerator comprising: an ozone decomposing means for decomposing generated ozone, wherein only a part of the circulating cold air can be circulated in a deodorizing device that deodorizes by circulating circulating cold air in a refrigerating compartment. The refrigerator according to claim 21, wherein the flow rate per hour of the circulation cold air to the deodorizer is set at least four times the volume of the refrigerator compartment. The refrigerator according to claim 21 or 22, wherein the flow rate of the circulation cold air in the deodorizing apparatus is configured to be changeable. The refrigerator according to claim 23, comprising a dedicated fan for circulating cold air in the deodorizing device. The refrigerator according to claim 23, wherein the ratio between the circulation cold air circulated to the deodorizer and the circulation cold air circulated to other portions is configured to be changeable. The refrigerator according to claim 23, wherein a switch for increasing the amount of air flow of the circulating cold air is provided. The refrigerator according to claim 21 or 22, wherein the deodorizing efficiency can be adjusted by intermittently operating the deodorizing device. The refrigerator according to claim 27, wherein the operation time of the deodorizing device is configured to be changed according to the flow rate of circulating cold air to the deodorizing device.