TW499297B - Deodorizing device - Google Patents

Abstract

The object of the present invention is to make a deodorizing device to efficiently remove an odorous component contained in a gas even in a closed space in which the gas is not circulated. This deodorizing device is constituted by providing a DC discharge mechanism 27, a photocatalyst module 28, and an ozonolysis catalyst filter 29 in a duct 26. The discharging mechanism 27 is constituted of a wire-like ignition electrode 30 and a pair of counter electrodes 31. The ignition electrode 30 is arranged by shifting the electrode 30 leftward from the lateral center line A of the counter electrodes 31. When a DC high-voltage potential is impressed upon the electrode 30, high-voltage discharge occurs between the electrodes 30 and 31 and an ion wind is generated, resulting in the generation of an air current flowing in the direction expressed by the arrow B in the duct 26. Consequently, the cold air in a refrigerator flows in the duct 26 from an inlet port 26a, is deodorized when the cold air passes through the photocatalyst module 28 and ozonolysis catalyst filter 29, and is discharged into the refrigerator from an outlet port 26b.

Description

499297 A7 __ B7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a deodorizing device for removing odor by removing odorous components in the gas. [Problems to be Solved by the Invention] For example, in a refrigerator, in order to reduce various odors caused by food in the refrigerator or to prevent the odor from being transferred to other foods, a deodorizing mechanism formed by an adsorbent such as activated carbon has traditionally been provided In the refrigerator. However, when the absorbing ability becomes saturated, the absorbing agent loses its effect and must be replaced appropriately. When the adsorption capacity is left in a saturated state, there is a problem that the adsorbent itself emits an odor. For this reason, as a method of extending the deodorizing performance, a platinum assembly catalyst is used near the defrosting heater to absorb the odorous substances contained in the air in the refrigerator. During the defrost, the heater is used Method for decomposing odorous substances by heating. Furthermore, in recent years, as a person who can exert a stronger deodorizing effect, a deodorizing device utilizing the oxidizing power of ozone has been developed or as disclosed in Japanese Patent Application No. 20000-1 8 1 5 1 8 No.'s combination of deodorizing device that discharges light and photocatalyst. In any of the above deodorizing devices, the deodorizing effect can be improved by improving the contact efficiency of odorous substances, sorbents or catalysts, and ozone molecules. To this end, the aforementioned deodorizing device is assembled in a cold air circulation path in a refrigerator to circulate cold air containing odors in the device. Therefore, when applying the above-mentioned deodorizing device to, for example, a cold-air (gas) direct-cooled refrigerator or a boot box, it is necessary to apply the Chinese National Standard (CNS) A4 specification (210X297) for this paper. Public H " One — (Please read the notes on the back before filling out this page)

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Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -4- 499297 A7 B7 V. Description of the Invention (2) (Please read the precautions on the back before filling this page) To install a dedicated fan (for use) of a deodorizing device, The circulation of gas in the deodorizing device causes the entire device to increase the amount and becomes a problem of large size. In addition, even if the refrigerator is provided with a cooling air circulation type using a blower (fan), the installation location of the deodorizing device is limited to the circulation path of the cooling air, and therefore there is a problem that the freedom to install the deodorizing device is low. Furthermore, when the air-supply fan is stopped and the cool air is not circulating, the deodorizing efficiency is lowered. For this reason, it is an object of the present invention to provide a deodorizing device which can extremely efficiently remove odorous components in a gas even in a closed space where no gas is circulated. [Methods for solving problems]

The deodorizing device according to the first patent application scope of the present invention (hereinafter referred to as application item 1 and others are the same) is particularly equipped with: having a counter electrode and a discharge electrode, and applying a DC high voltage to the aforementioned discharge electrode and An ion wind generating mechanism for generating a high voltage discharge between the counter electrodes to generate an ion wind; and a deodorizing mechanism for removing an odor component contained in the gas. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs based on the above structure, because the ionic wind generated by the ion generating mechanism can be applied with high voltage, the gas can flow toward the deodorizing mechanism, so even if it is arranged in a closed space where the gas will not circulate It can also remove odor components contained in gas with good efficiency. In addition, a structure that requires a fan device to flow the gas can be miniaturized, and the noise can be reduced. Ozone can also be generated by high-voltage discharge between the discharge electrode and the counter electrode. Therefore, the oxidizing power of ozone can be used to decompose and remove odorous components. The size of this paper applies Chinese national standard (cns) a4 specifications <210x297 mm) 499297 A7 B7 V. Description of the invention (3) In this case, it is better to have a gas circulation path inside, and to have an ion wind generating mechanism and The deodorizing mechanism is a pipe, and the ion wind generating mechanism is configured to arrange the discharge electrode on the upstream side than the center of the airflow direction of the counter electrode, and the deodorizing mechanism is disposed on the downstream side of the ion generating mechanism (application item 2 inventions). According to the above structure, since the air current is generated in the pipe by the ion wind generated by the ion wind generating mechanism, the gas can be taken into the pipe with good efficiency and directed toward the deodorizing mechanism, so the deodorizing efficiency can be further improved. 〇 The deodorizing mechanism may be configured to include an ultraviolet generation discharge mechanism that generates ultraviolet rays by high-voltage discharge, and decomposes odorous components or harmful substances contained in a gas by a photocatalyst action generated by irradiating the ultraviolet rays. Photocatalyst module formed by other photocatalyst filters (application 3 invention). Further, the deodorizing mechanism is configured to include an odor generating discharge mechanism for generating ozone by high-voltage discharge, and an ozone deodorizing mechanism formed by an ozone decomposition catalyst filter for decomposing the ozone (application 5). Invention). According to the above structure, the odor component in the gas can be decomposed by the oxidizing power of ozone. Furthermore, the deodorizing mechanism described in 'BII' may be configured to include an activated carbon filter including an odorous component or a harmful substance contained in a gas to be adsorbed (the invention of claim 6). However, in any of the above-mentioned applications 3, 4 and 6, the gas containing odorous components can be formed to actively flow toward the deodorizing mechanism. Because this paper scale applies the Chinese National Standard (CNS) A4 specification (210 X297 mm) (Please read the notes on the back before filling this page) Order

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -6-499297 A7 B7 V. Description of the Invention (4) It can deodorize gas with high efficiency. In the invention of claim 3, the photocatalyst filter of the photocatalyst module is configured to fix the photocatalyst particles on the surface of the substrate made of porous ceramics, and the discharge mechanism for ultraviolet generation is formed by the aforementioned photocatalyst filter. The counter electrode of the above-mentioned ultraviolet-generating discharge electrode, which is opposite to the disposed discharge electrode and the counter electrode, is arranged so as to face the ion generating mechanism, and the counter electrode of the ultraviolet-generating discharge mechanism and the counter electrode of the ion-generating mechanism are configured. It is desirable to form a ground potential (the invention of claim 4). According to the above-mentioned structure, even if the photocatalyst filter is arranged in the gas flow path, there is no possibility that the gas flow is greatly hindered. It can also efficiently irradiate non-directional ultraviolet rays generated by the high-voltage discharge between the discharge electrode of the photocatalyst module and the counter electrode to the photocatalyst filter, so that the photocatalyst reaction can be performed with good efficiency. Furthermore, it can prevent The discharge is caused between the ion wind generating mechanism and the photocatalyst module. Furthermore, the ion generating mechanism is formed by a pair of plate-shaped counter electrodes arranged opposite to a direction orthogonal to the airflow direction (vertical intersection), and between the pair of plate-shaped counter electrodes facing the pair. A linear discharge electrode in which the electrodes are parallel and extend in a direction orthogonal to the direction of the air flow (the invention of claim 7). According to the above structure, since the counter electrode is disposed so as to sandwich the discharge electrode from both sides, the amount of ion wind generated can be increased compared to the configuration in which the counter electrode is disposed only on one side of the discharge electrode. The plate-shaped counter electrode is arranged opposite to the direction orthogonal to the airflow direction, so it can be prevented from applying the Chinese National Standard (CNS) A4 specification (210X297 mm1 (read first) (Notes on the back then fill out this page)

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Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 499297 A7 B7 V. Description of Invention (5) Extremely obstructing the air flow. Furthermore, the ion generating mechanism may be configured by a pair of plate-shaped counter electrodes arranged opposite to one direction orthogonal to the direction of the air flow, and a pair of plate-shaped counter electrodes arranged between the pair of plate-shaped counter electrodes and facing the counter electrode. A plurality of discharge cells composed of linear discharge electrodes extending in parallel and extending orthogonally to the direction of the airflow are connected in series toward the direction of the airflow (the invention of claim 8). According to the above structure, it is possible to prevent the flowing gas in the pipe as much as possible, and at the same time, the amount of ion wind can be increased. The ion generating mechanism is composed of a plurality of plate-shaped counter electrodes arranged in parallel to the direction orthogonal to the airflow direction, and each of two counter electrodes arranged opposite to each other among the plurality of counter electrodes, and It is constituted by a plurality of linear electrode arrays extending in a direction parallel to the counter electrode and extending in a direction orthogonal to the air flow direction (the invention of claim 9). According to the above structure, the device can be formed so that the device does not become larger in the direction of the air flow, and the amount of ion wind can be increased. A negative high-voltage potential is applied to the discharge electrode of the ion generating mechanism (application 10 for the invention). According to the above structure, the deodorizing performance can be improved by increasing ozone. A positive high-voltage potential may be applied to the discharge electrode of the ion generating mechanism (the invention of claim 11). According to the above-mentioned structure, since the generation of ozone can be reduced, it is not necessary to arrange an ozone decomposition catalyst, so that the amount can be intended for miniaturization of the device. In addition, when the amount of ozone generated is small, the amount of the ozone reduces the deodorizing performance. Therefore, the present invention is suitable for a place where the amount of odorous components in the gas is small. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page) Order

Printed by the Employees 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-499297 A7 B7 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The voltage changing mechanism for high-voltage potential is also an ideal structure (the invention of application item 12). According to the above structure, the deodorizing performance can be changed in accordance with the amount of odorous components contained in the gas. Furthermore, the deodorizing device of the above-mentioned application items 1 to 12 can be assembled in a direct (connected) cold (but) type refrigerator. Direct-cooled refrigerators do not have a fan device for forcibly circulating air-conditioning in the refrigerator, but according to the above structure, even if the air-conditioning is not circulating in the refrigerator, the air-conditioning in the refrigerator will be actively taken into the refrigerator. In the pipeline, the odor components in the cold air can be brought into contact with the deodorizing structure with good efficiency, so the deodorizing effect can be improved. [Embodiment of the Invention] Hereinafter, a first embodiment in which a deodorizing device according to the present invention is provided in a (electric) refrigerator will be described with reference to Figs. 1 to 5. First, Fig. 3 is a longitudinal sectional side view showing the (electric) refrigerator of the present embodiment. In FIG. 3, the inside of the refrigerator body 1 formed of an adiabatic box is separated into an upper refrigerating compartment 3 and a lower freezing compartment by an adiabatic partition wall 2. In the lower part of the refrigerating compartment 3, a partition plate 5 is formed to form a vegetable-growing compartment 6. The lower vegetable box 6 contains a lower box 7 and an upper box 8 mounted on the upper portion of the lower box 7. A deodorizing device 9 is arranged behind the upper part of the partition plate 5 in the refrigerator compartment 3. The structure of the deodorizing device 9 will be described later. Furthermore, a cooling box 10 is disposed above the partition plate 5. Further, a refrigerating cooler 11 (hereinafter referred to as an R cooler 11) formed by cooling pipes is provided in the deep (inside) wall portion of the refrigerating compartment 3 described above. (Please read the notes on the back before filling out this page).

This paper size applies the Chinese National Standard (CNS) A4 specification (210X29? Mm) -9-499297 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (7) On the other hand, the above-mentioned freezer 4 A box 13 is arranged in the upper freezer compartment 4 which is divided into two upper and lower floors by a partition 12 and an upper box 14 and a lower box 15 are arranged in the lower freezer compartment 4. Also behind the partition plate 12 in the freezing chamber 4, a cooling chamber cooler 17 (hereinafter simply referred to as an F cooler 17) is arranged by a mounting plate 16. A machine room 18 is formed at the rear of the lower part of the refrigerator body 1, and a compressor 19 for a refrigeration cycle (for use) is provided in the machine room 18. The aforementioned compressor 19 is a reciprocating type having a compressor motor 20 (refer to FIG. 4) as a driving source. Fig. 5 shows the refrigeration cycle of the refrigerator in this embodiment. The outlet of the compressor 19 is connected to the inlet of the runner valve 22 through the condenser 21. The flow passage valve 22 is to selectively open (release) the R F output port and the F output port, and the switching (switching) operation is performed in accordance with the forward and reverse rotation of the compressor motor 2 3 (refer to FIG. 4). The RF output port of the flow channel valve 2 2 is connected to the inlet of the R cooler 11 by an RF capillary 2 4. The outlet of the aforementioned R cooler 1 is connected to the inlet of the F cooler 17 and the outlet of the aforementioned F cooler 17 is connected to the suction inlet of the compressor 19. Therefore, when the R F output port is opened, the refrigerant discharged from the compressor 19 is supplied to both the R cooler 11 and the F cooler 17. On the other hand, the F output port of the flow path valve 22 is connected between the outlet of the R cooler 11 and the inlet of the F cooler 17 by an F capillary 25. Therefore, when the F output port of the flow channel valve 22 is opened, the refrigerant discharged from the aforementioned compressor 19 will only be supplied to the lower cooler 17 (please read the precautions on the back before filling this page) is. order

This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 10- 499297 A7 B7 V. Description of invention (8). Next, the structure of the deodorizing device 9 will be described with reference to Figs. 1 and 2. 1 and 2 are a longitudinal sectional side view and an oblique (stereoscopic) view showing the structure of the main part of the deodorizing device 9, respectively. The deodorizing device 9 is formed inside a tube 2 6 formed in a rectangular tube shape, and is constituted by sequentially disposing a DC discharge mechanism 27, a photocatalyst module 28, and an ozone decomposition catalyst 29 from the left side in FIG. Openings 2 6 a and 2 6 b are respectively provided at the left and right ends of the duct 2 6 in FIG. 1, and are configured to cool air in the refrigerator through these openings 2 6 a and 2 6 b ( Gas) circulates in the pipeline 26. The aforementioned DC discharge mechanism 27 is constituted by a linear discharge motor 30 formed of, for example, tungsten or the like, and a pair of flat plate-shaped counter electrodes 31 arranged oppositely. The pair of counter electrodes 31 are arranged along the direction (that is, the left-right direction) in which the cooling air flows through the passage 26. The discharge electrode 30 is parallel to the counter electrode 31 and extends in a direction across which the cold air flows, and is arranged at the center of the counter electrode 31 in the opposite direction. At this time, as shown in FIG. 1, the discharge electrode 30 is disposed on one side of the center line A in the left-right direction of the counter electrode 31, and in this case, it is a position shifted to the left. The aforementioned DC discharge mechanism 27 is configured such that the negative electrode high voltage potential is applied to the aforementioned discharge electrode 30 while the counter electrode 31 is at the ground potential, for example, a DC high voltage potential of 4 · 5 kV is applied. As a result, a corona discharge is caused between the discharge electrode 30 and the counter electrode 31, and ions [negative (-) ions] are generated near the discharge electrode 30. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the notes on the back before filling this page) Order β Printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economic Affairs 11-499297 A7 B7 V. Invention Explanation (9) The Lizi generated near the aforementioned discharge electrode 30 will be directed toward the aforementioned counter electrode 31 by an electric field, and will impinge on neutral molecules (mainly oxygen molecules) in the gas to impart motion ( Move) energy, and move toward the counter electrode 31 together with the neutral molecule. The ions and neutral molecules that move to the counter electrode 31 are called ionic wind. Therefore, the aforementioned DC discharge mechanism 27 can function as an ion wind generating mechanism. In this embodiment, the foregoing discharge electrode 30 is arranged closer to the left side than the center line A of the aforementioned counter electrode 31, so the aforementioned ion wind will be inclined from the discharge electrode 30 toward the counter electrode 31 in the right direction. To flow. Therefore, the airflow generated in the duct 2 6 is drawn by the ion wind and flows in the direction indicated by the arrow mark B in FIG. 1. As a result, the cold air in the refrigerator flows into the duct from the left opening 2 6 a. 2 6 within. The cold air flowing into the duct 26 will flow in the direction of the arrow mark B by the airflow, and will flow out from the opening 2 6b on the right. Therefore, in the following description, the openings 2 6 a and 2 6 b are referred to as an inlet and an outlet, respectively. Furthermore, the position of the discharge electrode 30 of the counter electrode 31 is set such that when a DC high voltage of -4.5 kV is applied between the discharge electrode 30 and the counter electrode 31, it can be generated. 0.1 ~ 0.2〇1 / 3 6 (: The left and right air currents are in the above-mentioned pipe 26. On the other hand, the aforementioned photocatalyst module 28 is formed by a plurality of linear discharge electrodes 3 2 made of tungsten or the like. It consists of two counter electrodes 3 3 formed in a flat plate shape, and two photocatalyst filters each disposed between the aforementioned discharge electrode 32 and the counter electrode 33. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-12- 499297 A7 B7 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (10) The aforementioned plurality of discharge electrodes 3 2 are the same as the aforementioned discharge electrodes. The direction extending across the flow direction of the cold air is extended and arranged as an example. The two opposing electrodes 3 3 are formed in a grid shape, and are arranged so as to sandwich the discharge electrodes 32 from front to back in the direction of cold air flow. Therefore, the counter electrode 33 on the left side is arranged to face the aforementioned DC discharge mechanism 27 in the pipe 26. The aforementioned photocatalyst filter 34 is composed of a substrate made of porous ceramics (such as alumina or silicon dioxide), and a dry or fixed titanium oxide coated on the surface of the substrate. Photocatalyst material. The photocatalyst module 28 is configured to make the counter electrode 3 3 reach the ground potential, and apply a positive pulsed DC high voltage to the discharge electrode 3 2, and apply a pulsed high voltage of about +10 kV, for example. As a result, a discharge is caused between the discharge electrode 32 and the counter electrode 3 3 to generate ultraviolet rays (wavelength 3800 nm or less). Therefore, the discharge electrode 32 can be used as a discharge generator for ultraviolet light generation. For the discharge electrode 30 of the aforementioned DC discharge mechanism 27, when a DC high-voltage potential of -4.5 kV is applied to cause discharge, ions are generated and ozone is generated at the same time. Furthermore, when the discharge electrode 3 2 of the photocatalyst module 28 is applied with a pulsed high voltage potential of about +10 kV to cause a discharge, ozone is generated together with ultraviolet rays. Therefore, in this embodiment, the aforementioned discharge electrodes 30 and 32 and the aforementioned ozone decomposition catalyst filter 29 constitute the ozone deodorizing mechanism, and the aforementioned discharge electrodes 30 and (Please read the precautions on the back before filling in this page)

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MW This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 499297 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (11) 3 2 Will be used as a discharge for ozone generation Institutions to make a difference. FIG. 4 shows the electrical structure of the refrigerator according to this embodiment. Control device 3 5 is connected with R temperature sensor 36, lower temperature sensor 37, R evaporator temperature sensor 3 8, F evaporator temperature sensor 3 9, R door switch 4 0, V door Switch 4 1. The aforementioned R temperature sensor 36 and F temperature sensor 37 are each constituted by a thermal resistor (device), and each output a temperature signal in response to a voltage level in the refrigerating compartment 3 and the freezing compartment 4 . The aforementioned R evaporator temperature sensor 38 and F evaporator temperature sensor 39 are composed of uniform thermal resistors, and each output a voltage level corresponding to the surface temperature of the R cooler 11 and the lower cooler 17 Temperature signal. The R door switch 40 and the V door switch 41 are detection switches for detecting the opening and closing of the refrigerating compartment door 扉 3a and the vegetable compartment door 各 6a, respectively, and can output their opening and closing detection signals. The internal ROM in the aforementioned control device 35 is the operation control program of the refrigerator, and is driven by the drive circuit 42 according to the aforementioned control program and according to the temperature signals from the aforementioned temperature sensors 36 to 39. The aforementioned compressor motor 20 and the aforementioned valve motor 23 are controlled. The control device 35 is configured to drive and control the high voltage application unit 43 to apply a negative DC high voltage to the discharge electrode 30 of the DC discharge mechanism 27, and to drive and control the high voltage application unit 44 to apply a positive voltage. The pulsed DC high voltage is applied to the discharge electrodes 32 of the photocatalyst module 28. Next, the operation of this embodiment will be described focusing on the deodorizing operation of the deodorizing device 9 described above. When the deodorizing device 9 is started by the aforementioned control device 35, a high-voltage discharge will be generated in the DC discharge mechanism 27. The paper size applies the Chinese National Standard (CNS) Α4 specification (210X297). (Please first (Read the notes on the back and fill out this page)

14-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 499297 A7 B7 V. Description of the invention (12) Between the electrode 30 and the counter electrode 31, while generating ion wind, ozone will also be generated. Also, a high voltage discharge is generated between the discharge electrode 32 and the counter electrode 33 of the photocatalyst module 28, and ultraviolet rays and ozone are generated. As a result, the airflow in the direction indicated by arrow B in the duct 26 is generated, and as the airflow is generated, the cold air flowing from the inflow port 2 6a into the refrigerating compartment 3 containing the odor component is in the duct 2 6 Inside, and reach the aforementioned DC discharge mechanism 27. When passing through the aforementioned DC discharge mechanism 27, the ozone generated by the high-voltage discharge is mixed with the cold air and directed toward the photocatalyst module in the backward stage. In the aforementioned photocatalyst module 28, ozone is generated together with ultraviolet rays by high-voltage discharge. Therefore, the cold air mixed with the ozone in the aforementioned DC discharge mechanism 27, when passing through the photocatalyst module 28, is further mixed with ozone to reach the ozone decomposition catalyst filter 29 at a later stage. In the aforementioned ozone decomposition catalyst filter 29, ozone is decomposed to generate active oxygen, and the oxidizing power of the active oxygen is used to oxidize and decompose odor components. As for the cold air which is deodorized as described above, it flows out of the refrigerating compartment 3 from the outlet port 2 6 b of the duct 26. As described above, according to this embodiment, a DC discharge mechanism 2 7 for generating an air current in the direction of the arrow mark B by the ion wind is generated at the same time as the ion wind is generated by the high-voltage discharge while being arranged in the pipe 26. The cold air taken actively into the refrigerator by the aforementioned ion wind is deodorized and then discharged into the refrigerator. Therefore, even a direct-cooled (electric) refrigerator that does not constitute cold air circulating in the refrigerator can also be used. Good efficiency to remove odor components from cold air. This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

15- 499297 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (13) Furthermore, the aforementioned DC discharge mechanism 27 is configured to arrange the discharge electrode 30 in the so-called centerline A of the counter electrode 31 A simple structure leaning on one side to generate an air flow in the direction of the arrow mark B in the duct 26. Therefore, a structure in which cold air is circulated in the duct 26 compared with a fan device can be intended to be silent and compact. The DC discharge mechanism 27 is disposed on the upstream side of the photocatalyst module 28, and the discharge electrode 30 is disposed on the upstream side than the center line of the counter electrode 31. Therefore, the aforementioned counter electrode 31 can be kept away from the aforementioned photocatalyst module 28, so that the occurrence of a discharge between the aforementioned counter electrode 31 and the discharge electrode 3 2 and the opposing electrode 3 3 of the aforementioned photocatalyst module 28 can be prevented. Furthermore, the counter electrode 3 1 of the DC discharge mechanism 27 and the counter electrode 3 3 of the photocatalyst module 28 are each set to a ground potential. Therefore, generation of a discharge between the aforementioned counter electrodes 3 1 and 3 3 can be avoided. Furthermore, in this embodiment, a negative DC high voltage is applied to generate the ozone at the aforementioned direct current mechanism 27, and a photocatalyst module 28 is provided to generate ultraviolet and ozone, and the ultraviolet and ozone are used for decomposition. Removes odorous components. Therefore, it can decompose and remove various odor components, etc. ', and can exert a powerful deodorizing effect. It is different from a deodorizing device that uses an adsorbent such as activated carbon, and does not require the replacement of the adsorbent or the replenishment of pharmaceutical ingredients. It is further configured to decompose ozone by disposing an ozone decomposition catalyst filter 29, so that the ozone concentration in the refrigerating compartment 3 can be prevented from increasing excessively, and each component in the refrigerator can be prevented from degrading uranium. This paper size applies to Chinese National Standard (CNS) A4 (210 × 297 mm) (Please read the precautions on the back before filling this page)

499297 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (14) The DC discharge mechanism 2 7 is composed of a linear discharge electrode 30 and a plate-shaped counter electrode 31, so it is more insulated. The surface discharge method for discharging objects can obtain a space for deodorizing treatment in the pipeline 26. Furthermore, arranging two pairs of counter electrodes 31 on both sides of the aforementioned discharge electrode 30 makes it possible to increase the amount of ionic wind, compared to a structure in which only the counter electrode is disposed on the side of the discharge electrode 30. Improve deodorization efficiency. In the photocatalyst module 28, the photocatalyst filter 34 is arranged between the discharge electrode 32 and the counter electrode 33, so there is no direction due to the high voltage discharge between the discharge electrode 3 2 and the counter electrode 33. The natural ultraviolet rays can be efficiently irradiated to the photocatalyst filter 34, so that the photocatalyst reaction can be performed with good efficiency. Since the counter electrode 3 3 and the photocatalyst filter 34 are arranged on both the upstream side and the downstream side of the discharge electrode 32, the utilization efficiency of the ultraviolet rays generated in the photocatalyst module 28 can be improved. In addition, since the photocatalyst filter 34 is configured to fix the surface of the substrate made of porous ceramics with titanium oxide fixed, even if it is arranged in the cooling air flow path, the cooling air flow will not be hindered too much. In addition, a larger area for fixing titanium oxide to a substrate can be obtained, and therefore, a photocatalytic reaction with good efficiency can be performed even when the amount of titanium oxide used is minimized. Fig. 6 shows a second embodiment of the present invention, and the differences from the first embodiment will be described. It should be noted that the same parts as those in the first embodiment are denoted by the same reference numerals. In this second embodiment, the ion wind generating mechanism of the deodorizing device 9 is configured with a plurality of, for example, two DC discharge mechanisms 2 7 are applied to the pipe. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (please (Read the notes on the back before filling out this page)

-17- 499297 A7 B7 V. Description of invention (15) 2 6. In this state, the aforementioned direct-current discharge mechanisms 27 are arranged in series in the direction of gas flow. Therefore, the aforementioned DC discharge mechanism 27 can function as a discharge unit. According to the above configuration, the amount of ion wind generated in the DC discharge mechanism 27 can be increased, and the amount of cold air flowing into the duct 26 can be increased, so that the deodorizing performance can be improved. The other structures are the same as those of the first embodiment, so that the same effects as those of the first embodiment can be obtained. Fig. 7 shows a third embodiment of the present invention, and the differences from the first embodiment will be described. In addition, the same parts as those in the first embodiment will be assigned the same symbols. In this third embodiment, the DC discharge mechanism 27 as the ion wind generating mechanism of the deodorizing device 9 is configured such that a plurality of parallel electrodes are arranged in parallel to the direction in which the airflow flows, for example, four counter electrodes 31, And the structure of the discharge electrode 30 arranged between the two opposing electrodes 31 in the aforementioned opposing electrode 31. Even in such a state, the aforementioned discharge electrode 30 is arranged closer to the left side than the center line of the aforementioned counter electrode 31. According to the above structure, the amount of ion wind generated by the DC discharge mechanism 27 can be increased, so that By increasing the amount of cold air flowing into the duct 26, the deodorizing performance can be improved. It is also different from the second embodiment described above, and does not increase the size of the device. In addition, since the other structures are the same as those of the first embodiment, the same effects as those of the first embodiment can be obtained. Fig. 8 shows a fourth embodiment of the present invention. Differences from the first embodiment will be described. In addition, the same parts as those in the first embodiment will be assigned the same symbols. In this fourth embodiment, the paper size to be applied to the deodorizing device applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

1T printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -18- 499297 A7 B7 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (16) 9 DC discharge mechanism 2 7 of the aforementioned discharge electrode 3 0 DC The high voltage is configured to be controllable and variable. That is, the control device 35 is configured to drive and control the high voltage application unit 43 to apply a DC high voltage of 4 to 6 kV to the discharge electrode 30. Therefore, in this embodiment, the control device 35 and the high-voltage application unit 43 can function as a voltage changing mechanism. In this state, a sensor for detecting odor components such as the concentration of ammonia in the refrigerator may be provided, and the applied voltage may be changed in response to the detection result of the sensor. According to such a structure, the deodorizing performance can be changed according to the amount of odor components in the refrigerator, and the odor components in the cold air can be removed with good efficiency. In addition, since other structures are the same as those of the first embodiment, the same effects as those of the first embodiment can be obtained. Fig. 9 shows a fifth embodiment of the present invention, and the differences from the first embodiment will be described. In addition, the same parts as those in the first embodiment will be assigned the same symbols. In the fifth embodiment, the photocatalyst module group 28 of the deodorizing device 9 is omitted. That is, the deodorizing device 9 performs decomposition using only ozone to remove ozone components. According to the above-mentioned structure, although the deodorizing performance is lower than that of the deodorizing device 9 of the first embodiment, the weight of the omitted photocatalyst module 28 can be reduced in size. Fig. 10 shows a sixth embodiment of the present invention, and the differences from the first embodiment will be described. In addition, the same parts as those in the first embodiment will be assigned the same reference numerals. In the embodiment of the main body 6, a DC discharge mechanism 5 1 and an activated carbon filter 5 2 are arranged in a pipe 2 6 to constitute a deodorizing device 9 (please read the precautions on the back before filling this page)

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This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) -19- 499297 A7 B7 V. Description of invention (17) (Please read the precautions on the back before filling this page). Although the DC discharge mechanism 51 is composed of the discharge electrode 30 and the counter electrode 31 similarly to the DC discharge mechanism 27 shown in the first embodiment, a positive DC high voltage is applied to the discharge electrode 30. Potential, such as a DC high voltage potential of + 4 · 5 k V. In the above structure, when a DC high-voltage potential of + 4 · 5 k V is applied to the foregoing discharge electrode, an ion wind is generated and flows in the direction of arrow mark B. The air current flows in the pipe 26. As a result, the cold air in the refrigerator flows into the duct 26 through the inlet 26a. After passing through the DC discharge mechanism 51, it reaches the activated carbon filter 52. When passing through the activated carbon filter 52, the odor components in the cold air are attracted to the activated carbon filter 52, and the deodorized cold air is discharged from the outflow port 26b into the refrigerator. Therefore, according to the deodorizing device 9 having the above structure, the cold air containing the odorous components in the refrigerator can be actively taken into the pipes 26, so the odorous components in the refrigerator can be removed with good efficiency.

〇 According to the above structure, the deodorizing device 9 is formed by arranging a DC discharge mechanism 51 and an activated carbon filter 5 2 in the pipeline 26. Therefore, it is possible to print the Italian device by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy Miniaturization. Furthermore, in the deodorizing device 9 having the above-mentioned structure, although the adsorption capacity of the activated carbon filter 52 is saturated, it is necessary to perform replacement work. However, as compared with a conventional deodorizing device having only an activated carbon filter, it has the effect of increasing the so-called deodorizing property because it can actively flow cold air into the duct 26. In addition to applying +4.5 kV DC high voltage electricity located in the aforementioned discharge power, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -20-printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 499297 A7 _ B7 V. Description of the invention (18) When the pole is 30, the ozone concentration generated by the aforementioned DC discharge mechanism 51 will be reduced to about 1/5 of the ozone concentration generated by the aforementioned DC discharge mechanism 27. Therefore, even if the deodorizing device 9 having the above structure is not provided with an ozone decomposition catalyst, the ozone concentration in the refrigerator will not be excessively increased. Fig. 11 shows a seventh embodiment of the present invention. Differences from the sixth embodiment will be described. In addition, the same parts as those in the sixth embodiment will be assigned the same symbols. That is, in the seventh embodiment, a photocatalyst module 28 is disposed on the downstream side of the DC discharge mechanism 51 in place of the activated carbon filter 5 2 of the deodorizing device 9. When a positive pulsed DC voltage is applied between the discharge electrode 3 2 and the counter-electrical device 3 3 of the aforementioned photocatalyst module 28, ozone is generated together with ultraviolet rays, but the amount of ozone generated is small. Therefore, according to the above structure, the cold air flowing into the pipe 26 through the inlet 26a, when passing through the photocatalyst module 28, is mainly oxidized and decomposed by the photocatalyst to odor components such as ammonia. Further, as described above, the odor generation amount of the DC discharge mechanism 51 is also small. Therefore, even if no ozone decomposition catalyst is provided, the ozone concentration in the refrigerator will not be excessively increased. Fig. 12 shows an eighth embodiment of a freezer-refrigerator to which the present invention is applied in an air-conditioning-circulating refrigerator. The differences from the first embodiment will be described. The freezer-refrigerator according to this embodiment is configured so that the inside of the refrigerating compartment 3 and the vegetable compartment 6 are implemented by a freezer cooler 6 1 (hereinafter, simply referred to as an R cooler 6 1). That is, in the depth (rear) of the above-mentioned vegetable-growing room 6, the partition wall ^ The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

-21-499297 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (19) 6 2 to form a cooler room for the refrigerator compartment 63. The upper part of the cooler room 63 is provided with a fan device 6 4 for a refrigerating room, and in cooperation with the fan device 6 4, a cylindrical cold air discharge portion 6 2 a is provided on the partition wall 6 2. The upper part. The front-end opening portion of the cold air discharge portion 6 2 a is located in the upper box 8 housed in the vegetable compartment 6. A cover 8 b with a cold air outlet 8 a is installed on the upper case 8 so as to be openable and closable. The R cooler 61 is arranged in the lower part of the cooler 63. Furthermore, a cool air inlet 65 in the form of a louver is arranged in front of the lower part of the partition wall 62. In the deep part and the upper part of the refrigerating compartment 3, a duct cover 6 6 having a slightly L-shape is formed to form a cooling air duct 67. The duct cover 66 is formed with a plurality of cold air discharge holes 6a. In the above structure, when the fan device 64 is operated, a part of the cold air in the cooler chamber 63 will be discharged from the cold air outlet 6 2 a into the upper box 8 as shown by the arrow mark in FIG. 12. And it is put out from the space between the upper box 8 and the partition plate 5 through the cold air outlet 8a. Then, part of the cold air will flow into the lower box 7, and the rest will flow along the front and bottom of the lower box 7, and then return to the cooler chamber 63 through the cold air suction port 65. On the other hand, the remaining cold air in the cooler chamber 63 is as shown by the arrow marks in FIG. 12 and rises through the cold air duct 67 and is discharged from the cold air outlet 6 6 a and the upper end of the cold air duct 6 7 for refrigeration. Room 3. Then, it passes between the cooling box 10 and the partition plate 5 and flows into the duct 26 of the deodorizing device 9 from the inflow port 26a. That is, in the present embodiment, the aforementioned deodorizing device 9 is arranged on a circulation path of cold air. This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

Order. Sample-22- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 499297 A7 B7 V. Description of the invention (20) Therefore, according to the above structure, in addition to the ion wind generated by the DC discharge mechanism 27, it can be used. The cold air in the refrigerator is circulated to take in the cold air into the pipes 26 with good efficiency. In the above-mentioned freezer refrigerator, when the fan device 64 is stopped driving, the cold air does not circulate in the refrigerator. However, in the above-mentioned deodorizing device 9, even when the cooling air in the circulating refrigerator (storage) stops flowing, the cooling air in the refrigerator can be actively flowed into the duct 26 by the ionic wind produced by the DC discharge mechanism 27. Therefore, the deodorization efficiency in a freezer and refrigerator can be improved. The present invention is not limited to the embodiments described above and described in the drawings, and may be deformed or expanded, for example, as described below. In the DC discharge mechanism, although the discharge electrode is disposed to sandwich the counter electrode from both sides, the counter electrode may be disposed only on one side. The aforementioned counter electrode may also be formed into a grid (grid) or a line. In this case, since the flow of the gas is not hindered greatly, the counter electrode can be arranged on the side of the direction of the gas flow across the discharge electrode and on the side of the gas flow direction of the discharge electrode. The counter electrode can be made negative. In this case, a repulsive force acts between the ions generated by the discharge electrode and the counter electrode. Therefore, when the discharge electrode is arranged in the DC discharge machine to form a side closer to the one side than the center of the airflow direction of the counter electrode, ion wind that flows from the discharge electrode to one side is generated. Specifically, when the counter electrode 31 of the DC discharge mechanism 27 of the first embodiment is set to a negative potential, the ion wind will flow in a direction opposite to the arrow mark B. In the sixth and seventh embodiments, the DC discharge mechanism 51 can also be made to flow below the deodorizing mechanism (activated carbon filter 5 2 and photocatalyst module 2 8). The paper size applies the Chinese National Standard (CNS) A4 specification. (210X297 mm) (Please read the notes on the back before filling this page)

-23- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 499297 A7 B7 _ V. Description of Invention (21). In the above-mentioned embodiment, the DC discharge mechanism 51 is used exclusively as a blower to generate an effector '. Therefore, even if it is arranged on either the upstream side or the downstream side, the same effect can be obtained. The polarity of the voltage to be applied to the discharge electrodes 32 of the photocatalyst module 28 can also be negative. At this time, since the amount of ozone generated is increased, an effect of improving the so-called deodorizing efficiency by ozone (active oxygen) can be obtained. The deodorizing device of the present invention can also be applied to closed spaces other than (electric) refrigerators, such as shoe boxes or closets, toilets, changing rooms in gyms, and the like. [Effects of the Invention] As can be seen from the above description, the deodorizing device according to the present invention is capable of generating an ion wind between the discharge electrode and the counter electrode of the ion wind generating mechanism to cause a high voltage discharge to generate gas. It can actively come into contact with the deodorizing mechanism, thereby improving the deodorizing performance. Compared with the structure equipped with a fan device to circulate the airflow, it can be intended to reduce the size and noise. Furthermore, ozone is generated by high-voltage discharge. Therefore, the oxidizing power of ozone can be used to decompose and remove odor components. [Brief Description of the Drawings] FIG. 1 is a schematic vertical cross-sectional view showing a first embodiment of the present invention, which is a deodorizing device. Fig. 2 is a perspective (stereoscopic) view showing the internal structure of the deodorizing device. Fig. 3 is a longitudinal sectional view of a direct cooling type refrigerator. This paper size applies to China National Standard (CNS) A4 (210X297 mm) 1 -24- (Please read the precautions on the back before filling this page)

499297 A7 _ B7 _ 5. Explanation of the invention (Figure 4 shows the functional block of the electrical structure. Figure 5 shows the structure of the refrigeration cycle in a pattern. Figure 6 shows the second embodiment of the present invention, which is equivalent to Figure 1 Fig. 7 is a diagram corresponding to Fig. 1 showing a third embodiment of the present invention. Fig. 8 is a diagram corresponding to Fig. 1 showing a fourth embodiment of the present invention. Fig. 9 is a diagram corresponding to Fig. 1 showing a fifth embodiment of the present invention. Fig. 10 is a diagram corresponding to Fig. 1 showing a sixth embodiment of the present invention. Fig. 11 is a diagram corresponding to Fig. 1 showing a seventh embodiment of the present invention. Fig. 12 is a diagram showing an eighth embodiment of the present invention. Figure 1 is equivalent. [Explanation of Symbols] 1: Refrigerator body, 2: Insulated partition wall 3: Refrigerator compartment, 3 a: Refrigerator compartment door 4: Freezer compartment, 5: Partition 6: Vegetable compartment, 6a: Vegetable Door 扉 7: Upper box, 8: Lower box 9: Deodorizing device, 1 ·· Cooling box Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs (Please read the precautions on the back before filling this page) 11: R Cooling 17: F cooler 1 2: partition 1 3: box, 1 4: upper box, 1 5: lower box 16: mounting plate, 1 8 ·· machine room 1 9: compressor 2 0 : Compressor motor, 2 1: Condenser, 2 2: Flow path valve 2 3 · · Valve motor, 2 4 · · RF capillary, 2 5: F capillary 2 6: Pipe, 2 6 a, 2 6 b: Open The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -25- 499297 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (2 $ 2 7, 5 1: DC discharge mechanism (Ion wind generating mechanism) 2 8: Photocatalyst module (deodorizing mechanism), 29: Ozone decomposition catalyst filter (ozone deodorizing mechanism), 30: Discharge electrode (discharge mechanism for ozone generating, ozone deodorizing mechanism) ) 3.1: Counter electrode (discharge electrode for ozone generation, ozone deodorizing mechanism), 3 2: Discharge electrode (discharge electrode for ultraviolet generation, ozone deodorization mechanism, discharge mechanism for ozone generation), 3 3: Counter electrode ( Discharge mechanism for ultraviolet generation, ozone deodorization mechanism, discharge mechanism for ozone generation) 3 4: Photocatalyst filter, 3 5: Control device (voltage change mechanism) 3 6: R temperature sensor, 37: F temperature sensor Heater 38: R evaporator temperature sensor, 39: F evaporator Temperature sensor 4 0: R door switch, 4 1: V door switch 4 2: Drive circuit 4 3, 4 4: High voltage application unit (voltage changing mechanism) 5 2: Activated carbon filter (deodorizing mechanism). 6 1: R cooler, 6 2: Partition wall, 6 2 a: Cooling air outlet 63: Cooler room, 64: Fan unit 6 5: Cooling air inlet 66: Pipe cover, 66a: Cooling air outlet 6 7: Air-conditioning pipes. (Please read the notes on the back before filling out this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm)

Claims (1)

499297 No. 90122509 Patent Application Chinese Application for Patent Scope Amendment May 1991 Amendment A8 B8 C8 D8 May / 09 Amendment / Correction / Supplementary Scope of Patent Application 1. A deodorizing device, which is specially equipped with : It has a counter electrode and a discharge electrode, and a high DC voltage is applied to the foregoing (please read the precautions on the back before filling this page). A high voltage discharge is caused between the discharge electrode and the counter electrode to generate ion wind. Mechanism; and a deodorizing mechanism for removing odorous components contained in the gas. 2. The deodorizing device according to item 1 of the scope of the patent application, which is a pipe having a gas flow path inside to accommodate the ion wind generating mechanism and the deodorizing mechanism, and the aforementioned ion wind generating mechanism is a discharge electrode The deodorizing mechanism is disposed closer to the upstream side than the center of the airflow direction of the counter electrode, and the deodorizing mechanism is disposed downstream of the ion generating mechanism. 3. The deodorizing device according to item 1 or 2 of the scope of patent application, wherein the deodorizing mechanism is provided with an ultraviolet generating and discharging mechanism for generating ultraviolet rays by high voltage discharge; and a photocatalyst function for irradiating the ultraviolet rays A photocatalyst module composed of a photocatalyst filter that decomposes odorous components or harmful substances contained in a gas. 4 · If the deodorization device of item 3 of the patent application scope, in which the photocatalyst filter of the printed module printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Photocatalyst Economy, the photocatalyst particles are fixed on the surface of the substrate made of porous ceramic The discharge mechanism for ultraviolet generation is composed of a discharge electrode and a counter electrode arranged opposite to each other through the photocatalyst filter. The counter electrode of the discharge mechanism for ultraviolet generation is arranged to face the ion generating mechanism. In addition, the counter electrode of the ultraviolet generating discharge mechanism and the counter electrode of the ion generating mechanism form a ground potential. · 5 · If the deodorization device of item 1 or 2 of the scope of the patent application, the scale of deduction is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm): 499297 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 6. The scope of the patent application The odor mechanism is equipped with an ozone deodorization mechanism composed of a high-voltage discharge to generate ozone odor generation discharge mechanism; and an ozone decomposition catalyst filter for decomposing the aforementioned ozone. 6. The deodorizing device according to item 1 or 2 of the scope of patent application, wherein the deodorizing mechanism is configured with an activated carbon filter for absorbing odorous components and harmful substances contained in the gas. 7. The deodorizing device according to item 1 or 2 of the scope of patent application, wherein the ion generating mechanism is configured by a pair of plate-shaped counter electrodes opposed in a direction orthogonal to (or perpendicular to) the airflow direction; and A linear discharge electrode extending between the pair of plate-shaped counter electrodes and extending in a direction parallel to the counter electrodes and in a direction orthogonal to the airflow direction. 8. The deodorizing device according to item 1 or 2 of the scope of patent application, wherein the ion generating mechanism uses a pair of plate-shaped counter electrodes arranged to be opposite to one of the directions orthogonal to the direction of the air flow; A plurality of discharge units composed of linear discharge electrodes extending between the plate-shaped counter electrodes in a direction parallel to the counter electrode and extending in a direction orthogonal to the air flow direction are arranged in series in the air flow direction. 9 · If the deodorization device of item 1 or 2 of the patent application scope, wherein the ion generating mechanism is composed of a plurality of plate-shaped counter electrodes arranged in parallel with the direction of the airflow in parallel; and Each of the electrodes is formed by a plurality of discharge electrodes in a line shape extending in a direction parallel to the aforementioned counter electrode and extending in a direction orthogonal to the direction of the air flow. 1 0 · If the deodorization device of the 1st or 2nd scope of the patent application, the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 2 _ (Please read the precautions on the back before filling in this Page) c_ Order 499297 A8 B8 C8 D8 cavity, patent application enclosing the discharge electrode surrounding the ion generating mechanism, a negative high voltage potential is applied. 1 1. The deodorizing device according to item 1 or 2 of the scope of patent application, wherein a positive high voltage potential is applied to the discharge electrode of the ion generating mechanism. 12. The deodorizing device according to item 1 or 2 of the scope of patent application, which includes a voltage changing mechanism that changes a high piezoelectric potential applied between the discharge electrode and the counter electrode of the ion generating mechanism. 1 3 · The deodorizing device according to item 1 or 2 of the scope of patent application, which is assembled in the box of a direct-cooled (electric) refrigerator. (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is sized for China National Standard (CNS) A4 (210X297 mm)