JP2011242082A - Household electrical appliance, refrigerator and washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively exhibit disinfection or deodorization effects.SOLUTION: A household electrical appliance includes: a housing part for housing an object to be housed; a mist emission means for creating a mist of hydrogen peroxide and emitting the created mist; a blowing passage for sending the mist emitted from the mist emission means to the housing part; and an ultraviolet irradiation means for irradiating the mist with ultraviolet rays. The ultraviolet irradiation means is spaced from the mist emission means and arranged in or near the housing part.

Description

  Embodiments described herein relate generally to home appliances, refrigerators, and washing machines.

  In household appliances, for example, refrigerators, an ultrasonic atomizer is provided in a duct behind a vegetable room that is a storage room (accommodating unit) for storing vegetables as objects, and the ultrasonic atomizer is discharged from the ultrasonic atomizer. It is considered that mist is supplied (spread) from the duct into the vegetable compartment (see, for example, Patent Document 1).

JP 2006-145080 A

  By the way, OH radicals (hydroxy radicals) that can be generated from water have strong oxidizing power and are expected to be effective in sterilization and deodorization. Therefore, for example, when OH radicals are generated together with mist at the position where the ultrasonic atomizer is provided, and the mist containing the OH radicals is supplied to the vegetable compartment, the OH radical is highly reactive, and the place (object to be supplied) OH radicals disappear before reaching), and the effects of sterilization and deodorization cannot be effectively exhibited.

  Then, the household appliances, refrigerator, and washing machine which can exhibit the effect of disinfection and deodorizing effectively are provided.

  The home appliance of the present embodiment includes a storage unit that stores an object, a mist discharge unit that converts hydrogen peroxide water into a mist, and a ventilation path that sends the mist discharged from the mist discharge unit to the storage unit. And an ultraviolet irradiating means provided in the accommodating portion or in the vicinity of the accommodating portion and irradiating the mist with ultraviolet rays.

  The refrigerator of the present embodiment includes a refrigerator main body having a storage chamber for storing a stored product such as food as an object, mist discharge means for mist-generating and releasing hydrogen peroxide, and mist discharged from the mist discharge means. And an ultraviolet irradiation means for irradiating the mist with ultraviolet light, which is provided in the storage chamber or in the vicinity of the storage chamber and spaced from the mist discharge means. It is characterized by.

  The washing machine of the present embodiment is a water tank disposed in the outer box, a laundry tank disposed in the water tank for storing the laundry as an object, and a hydrogen peroxide solution in the form of mist. A mist discharging means, a ventilation path for sending the mist discharged from the mist discharging means into the washing tub, the mist discharging means being spaced apart from the mist discharging means and provided in the laundry tub or in the vicinity of the washing tub, And an ultraviolet irradiation means for irradiating ultraviolet rays.

A longitudinal side view showing a schematic configuration of the entire refrigerator according to the first embodiment. Expanded longitudinal side view of the vicinity of the ultrasonic atomizer The perspective view which shows schematic structure of an ultrasonic atomizer Block diagram showing electrical configuration Diagram showing the relationship between ultrasonic frequency and action Flow chart showing control contents of ultrasonic atomizer A longitudinal side view showing a schematic configuration of the entire washing machine according to the second embodiment. Rear view of aquarium

Hereinafter, home appliances according to a plurality of embodiments will be described with reference to the drawings.
(First embodiment)
First, 1st Embodiment applied to the refrigerator as household appliances is described with reference to FIGS. As shown in FIG. 1, the refrigerator main body 1 is configured by providing a plurality of storage chambers in a heat insulating box 2 having a vertically long rectangular box shape whose front surface is open. Specifically, in the heat insulation box 2, a refrigeration room 3 and a vegetable room 4 are provided in order from the top, and an ice making room 5 and a small freezer room (not shown) are provided side by side on the lower side, A freezer compartment 7 is provided below these. A known automatic ice making device 8 is provided in the ice making chamber 5. The heat insulating box 2 is basically configured by providing a heat insulating material 2c between an outer box 2a made of steel plate and an inner box 2b made of synthetic resin.

  Each of the refrigerator compartment 3 and the vegetable compartment 4 is a storage compartment in a refrigeration temperature zone (for example, 1 to 4 ° C.), and is partitioned vertically by a plastic partition wall 9. A hinged heat insulating door 3 a is provided on the front surface of the refrigerator compartment 3, and a drawer heat insulating door 4 a is provided on the front surface of the vegetable room 4. The lower case 10a which comprises a storage container is connected with the back surface part of this heat insulation door 4a. An upper case 10b that is smaller than the lower case 10a is provided on the upper portion of the lower case 10a.

  The inside of the refrigerator compartment 3 is divided into a plurality of stages by a plurality of shelf boards 11. A chilled chamber 12 is provided on the right side at the lowermost part (the upper part of the partition wall 9) in the refrigerator compartment 3, and an egg case and an accessory case (not shown) are provided above and below on the left side. On the left side is a water storage tank. A chilled case 13 is provided in the chilled chamber 12 so that it can be taken in and out. In the upper part of the chilled chamber 12, a chilled chamber top plate 12a is provided. The water storage tank is for storing water to be supplied to the ice tray 8 a of the automatic ice making device 8. In the present embodiment, the refrigerator compartment 3, the vegetable compartment 4, and the chilled compartment 12 are storage compartments for storing stored items (not shown) such as foods as objects, and constitute an accommodating portion.

  The ice making room 5, the small freezing room, and the freezing room 7 are all storage rooms in a freezing temperature zone (for example, −10 to −20 ° C.), and are between the vegetable room 4, the ice making room 5, and the small freezing room. Are partitioned vertically by a heat insulating partition wall 14. A drawer-type heat insulating door 5a is provided on the front surface of the ice making chamber 5, and an ice storage container 15 is connected to the back surface of the heat insulating door 5a. Although not shown, a drawer-type heat insulating door connected to a storage container is also provided on the front surface of the small freezer compartment. A drawer-type heat insulating door 7 a to which a storage container 16 is connected is also provided on the front surface of the freezer compartment 7.

  Although not shown in detail in the refrigerator main body 1 as a whole, the refrigerator 17 for cooling the refrigerator compartment 3 and the vegetable compartment 4, the ice making chamber 5, the small freezer compartment, and the freezer compartment 7 are cooled. A refrigeration cycle comprising two coolers, a refrigeration cooler 18 for doing so, is incorporated. A machine room 19 is provided on the back side of the lower end of the refrigerator body 1, and although not shown in detail, a compressor 20 and a condenser constituting a refrigeration cycle are disposed in the machine room 19. A cooling fan, a defrosted water evaporating dish 21 and the like for cooling them are disposed. A control device 22 in which a microcomputer or the like for controlling the whole is mounted is provided near the rear lower portion of the refrigerator body 1.

  A refrigeration cooler chamber 23 is provided behind the freezing chamber 7 in the refrigerator body 1. In the refrigeration cooler chamber 23, the refrigeration cooler 18 is disposed at the lower portion, and a refrigeration blower fan 24 is disposed at the upper portion. A cold air outlet 25a is provided in the middle part of the front surface of the freezer cooler chamber 23, and a return port 25b is provided in the lower end part. The refrigeration cooler 18 is provided with a defrost heater (not shown).

  In this configuration, after the refrigeration blower fan 24 is driven, the cold air generated by the refrigeration cooler 18 is supplied from the cold air outlet 25a into the ice making chamber 5, the small freezer compartment, and the freezer compartment 7. Circulation is performed such that the return port 25b returns to the refrigeration cooler chamber 23. Thereby, the ice making room 5, the small freezer room, and the freezer room 7 are cooled. A drainage basin 26 that receives defrost water when the refrigeration cooler 18 is defrosted is provided below the refrigeration cooler 18. The defrost water received by the drainage basin 26 is guided to the defrost water evaporating tray 21 provided in the machine chamber 19 outside the warehouse, and evaporates.

  And in the back part of the said refrigerator compartment 3 and the vegetable compartment 4 in the refrigerator main body 1, the said cooler 17 and the cold air | gas produced | generated by this refrigerator refrigerator 17 are sent to the said refrigerator compartment 3 (and vegetable compartment 4). A cold air duct 27 for supplying the air inside, a refrigeration blower fan 28 for circulating the cold air, and the like are arranged as follows. That is, a refrigeration cooler chamber 29 constituting a part of the cold air duct 27 is provided behind the lowermost stage of the refrigeration chamber 3 in the refrigerator main body 1 (behind the chilled chamber 12). A refrigeration cooler 17 is disposed in the inside 29. Although not shown, the refrigeration cooler 17 is also provided with a defrost heater.

  A cold air supply duct 30 extending upward is provided above the refrigerating cooler chamber 29, and the upper end portion of the refrigerating cooler chamber 29 communicates with the lower end portion of the cold air supply duct 30. In this case, the cold air duct 27 is constituted by the refrigeration cooler chamber 29 and the cold air supply duct 30. As shown in FIG. 2, the front wall 29 a of the refrigeration cooler chamber 29 bulges forward from the cold air supply duct 30. A heat insulating material 31 having heat insulating properties is provided on the back side of the front wall 29a. At the front of the cold air supply duct 30, a plurality of cold air supply ports 32 that open into the refrigerator compartment 3 are provided.

  A drainage basin 33 for receiving defrost water from the refrigeration cooler 17 is provided below the refrigeration cooler 17 in the lower part of the refrigeration cooler chamber 29. The defrosted water received by the drainage basin 33 is also led to the defrosting water evaporating dish 21 provided in the machine room 19 outside the cabinet, similarly to the defrosting water received by the drainage basin 26, It is supposed to evaporate. The left and right length dimensions and the front and rear depth dimensions of the drainage basin 33 are set to be larger than the left and right length dimensions and the front and rear depth dimensions of the refrigeration cooler 17, and defrosting dripping from the refrigeration cooler 17. It is configured to receive all water.

  The refrigeration blower fan 28 is disposed behind the vegetable compartment 4 below the drainage basin 33, and a blower duct 34 and a suction port 35 are provided. Among them, the air duct 34 communicates with the refrigeration cooler chamber 29 (cold air duct 27) so that the upper end of the air duct 34 bypasses the drainage basin 33. The suction port 35 is opened at the rear part of the vegetable compartment 4. Note that communication ports 36 are formed at the left and right corners of the rear part of the partition wall 9 that forms the bottom of the refrigerator compartment 3. The communication port 36 allows the refrigerator compartment 3 to communicate with the vegetable compartment 4 below it.

  In this configuration, when the refrigeration blower fan 28 is driven, the air in the vegetable compartment 4 is sucked into the refrigeration blower fan 28 side from the suction port 35, as indicated mainly by the white arrow in FIG. The sucked air is blown out to the air duct 34 side. The air blown out to the blower duct 34 side passes through the cold air duct 27 (the refrigeration cooler chamber 29 and the cold air supply duct 30) and is blown out into the refrigerating chamber 3 from the plurality of cold air supply ports 32. The air blown into the refrigerator compartment 3 is also supplied into the vegetable compartment 4 through the communication port 36, and finally circulated by being sucked into the refrigerator fan 28 for refrigerator. In this process, the air passing through the refrigerating cooler chamber 29 is cooled by the refrigerating cooler 17 to become cold air, and the cold air is supplied to the refrigerating chamber 3 and the vegetable chamber 4, whereby the refrigerating chamber 3 and the vegetable chamber 4 is cooled to a temperature in the refrigeration temperature zone.

  A dedicated mist duct 37 is provided on the front side of the cooler cooler chamber 29 in the cold air duct 27 so as to be located on the right side when viewed from the front and behind the chilled chamber 12. As shown in FIG. 2, the mist dedicated duct 37 is formed by a front wall 29 a of the refrigeration cooler chamber 29 and a duct component 38 attached to the front surface of the refrigeration cooler chamber 29. . In the lower part of the refrigeration cooler chamber 29, an ultrasonic atomizing device 40 constituting a mist discharge means is disposed below the mist dedicated duct 37. Hereinafter, the ultrasonic atomizer 40 will be described.

  The ultrasonic atomizer 40 includes a water storage container 41 constituting a water storage section, and a first ultrasonic vibrator 42 and a second ultrasonic vibrator 43 provided at the bottom of the water storage container 41. As shown in FIG. 3, the water storage container 41 is composed of a rectangular container main body 41a and a cover 42a attached to the upper surface of the container main body 41a. It is located between the refrigeration cooler 17 and the drainage basin 33 and is attached closer to the front.

  The cover 41b of the water storage container 41 is provided with a cylindrical mist discharge port 44 projecting upward on the upper surface of the front portion, and a rectangular opening 45 is formed at the rear portion. Is inserted into the mist dedicated duct 37 from below through the step 29b of the front wall 29a of the refrigeration cooler chamber 29 and the lower part of the duct component 38. The opening 45 is positioned below the refrigeration cooler 17, and when the refrigeration cooler 17 is defrosted, the defrost water dripped from the refrigeration cooler 17 is received by the container body 41 a through the opening 45. And stored.

  Further, the cover 41b is provided with a downward partition plate 46 located between the mist discharge port 44 and the opening 45, and the partition plate 46 allows the interior of the water storage container 41 to be connected to the front chamber 46a and the rear portion. It is partitioned into a chamber 46b. The lower end portion of the partition plate 46 is spaced upward from the bottom surface of the container body 41a, and the front chamber 46a and the rear chamber 46b communicate with each other at the lower portion. When the water storage container 41 is attached to the refrigeration cooler chamber 29, the upper portion is separated from the refrigeration cooler 17, the rear portion is separated from the rear inner surface of the refrigeration cooler chamber 29, and the lower portion is separated from the drainage basin 33. is doing.

  The first ultrasonic transducer 42 and the second ultrasonic transducer 43 are arranged at the bottom of the front chamber 46a in the bottom of the container body 41a. These first and second ultrasonic transducers 42 and 43 have different vibration frequencies. Specifically, the vibration frequency of the first ultrasonic transducer 42 is set to, for example, 200 kHz to 600 kHz, which is a frequency suitable for generating hydrogen peroxide water from water, as will be described later. Further, the vibration frequency of the second ultrasonic vibrator 43 is higher than the vibration frequency of the first ultrasonic vibrator 42 and is a frequency suitable for atomizing water (hydrogen peroxide solution). It is set to 1.6 MHz to 2.4 MHz. Accordingly, the vibration frequency of the first ultrasonic vibrator 42 that generates hydrogen peroxide from water is set lower than the vibration frequency of the second ultrasonic vibrator 43 that atomizes water (hydrogen peroxide water). ing. As shown in FIG. 5, the ultrasonic frequency is 20 kHz to 10 MHz (the horizontal axis in FIG. 5 is the vibration frequency).

  As shown in FIG. 4, a power supply 47 that supplies power to the first ultrasonic transducer 42 and the second ultrasonic transducer 43 is provided, and the control device 22 controls the first ultrasonic oscillation. The electric power suitable for the child 42 and the second ultrasonic transducer 43 is switched and supplied. Here, as will be described later, mist is generated in the water storage container 41 by the ultrasonic vibration of the second ultrasonic vibrator 43, and the mist M is mainly sent into the mist dedicated duct 37 from the mist discharge port 44. .

  A mist cold air supply port 49 is provided in the upper part of the rear part of the mist dedicated duct 37. The mist cold air supply port 49 has a rear portion communicating with the upper portion of the refrigeration cooler chamber 29 and a front portion communicating with the mist dedicated duct 37 so that a part of the cold air flowing through the refrigeration cooler chamber 29 can be obtained. The mist cold air supply port 49 is supplied into the mist dedicated duct 37 (see arrow A1 in FIG. 2). A chilled chamber outlet 50 is provided in the upper part of the front part of the mist dedicated duct 37, and a part of the cold air supplied from the mist cold air supply port 49 into the mist dedicated duct 37 and the mist dedicated duct. A part of the mist M in the duct 37 is supplied into the chilled chamber 12 from the chilled chamber outlet 50 (see arrow B1 in FIG. 2).

  Further, a mist duct 51 for a refrigerator compartment is provided on the upper part of the mist dedicated duct 37. The refrigerator mist duct 51 has a crank shape, the lower end refrigerator compartment outlet 51a communicates with the mist dedicated duct 37, and the upper end 51b communicates upward with the cold air supply duct 30. Yes. Accordingly, a part of the mist M of the mist dedicated duct 37 is also supplied into the refrigerating room 3 through the refrigerating room mist duct 51 and the cold air supply duct 30 (see arrow B2 in FIG. 2). ).

  Further, a vegetable room outlet 52 is provided below the mist dedicated duct 37. The vegetable room outlet 52 communicates with the vegetable room 4 through the communication port 36, and a part of the mist M in the mist dedicated duct 37 passes through the communication port 36 from the vegetable room outlet 52. 4 is also supplied (see arrow B3 in FIG. 2).

  Here, in the present embodiment, the mist exclusive duct 37, the mist duct 51 for the refrigeration room, and the cold air supply duct 30 respectively receive the mist M discharged from the ultrasonic atomizer 40 as mist discharge means. The ventilation path sent to the chilled room 12, the refrigerator compartment 3, and the vegetable compartment 4 which comprise an accommodating part is comprised. Of these, the mist dedicated duct 37 and the refrigerator mist duct 51 have bent portions, respectively.

  As shown in FIG. 1, the refrigerator compartment 3 is divided into a plurality of compartments by a plurality of shelf boards 11, and ultraviolet LEDs 53 constituting ultraviolet radiation means are attached to the side walls of the compartments. Moreover, the ultraviolet LED 53 is also attached to the front upper part in the chilled room 12, and the ultraviolet LED 53 is also attached to the front upper part and the lower case 10 a in the vegetable room 4. Therefore, the ultraviolet LED 53 is provided apart from the ultrasonic atomizing device 40 which is a mist emitting means, and is provided in the refrigerated chamber 3, the chilled chamber 12 and the vegetable chamber 4 which are storage units.

  Next, the operation of the above configuration will be described. As described above, when the refrigerator compartment 3 and the vegetable compartment 4 are cooled, the cold air cooled by the refrigerator refrigerator 17 is mainly indicated by white arrows in FIG. As shown in the figure, it passes through the cold air supply duct 30 and is supplied into the refrigerating chamber 3 from a plurality of cold air supply ports 32, and a part thereof is from the mist cold air supply port 49 to the mist dedicated duct 37 and the chilled chamber outlet 50. The chilled chamber 12 is also supplied through. The cold air supplied into the refrigerator compartment 3 and the chilled compartment 12 contributes to cooling of stored items such as foods, and then merges and is also supplied into the vegetable compartment 4 from the communication port 36. The cooling air supplied into the vegetable compartment 4 contributes to the cooling of stored items such as vegetables, and then is sucked into the refrigeration fan 28 side from the suction port 35 and cooled again by the refrigeration cooler 17. repeat.

  Next, the operation of the ultrasonic atomizer 40 will be described. The ultrasonic atomizer 40 is controlled by the controller 22. When the ultrasonic atomizer 40 is driven, the controller 22 first drives the first ultrasonic transducer 42 to generate hydrogen peroxide solution as shown in FIG. 6 (step S1). ). The vibration frequency at this time is set to 200 kHz to 600 kHz. When the first ultrasonic vibrator 42 is driven at this vibration frequency, the vibration is transmitted to the water stored in the water storage container 41 to generate hydrogen peroxide, whereby the water in the water storage container 41 is peroxidized. Hydrogen water is obtained (see FIG. 5).

This phenomenon is considered to be the following mechanism. When the first ultrasonic vibrator 42 is vibrated at 200 kHz to 600 kHz, fine cavitation (water bubbles) is generated in the water stored in the water storage container 41, and cavitation grows by continuing the vibration. . After the cavitation grows, high energy is transmitted to the surroundings by repelling and a lot of OH radicals (hydroxy radicals) are generated. Then, due to the high reactivity of OH radicals, they are combined to produce hydrogen peroxide (H ₂ O ₂ ).

  When the control device 22 performs the step of generating hydrogen peroxide from water in this way for a predetermined time ΔT1, for example, 60 minutes (step S2), the control device 22 stops driving the first ultrasonic transducer 42 (step S3). ).

  Next, the control apparatus 22 performs the process which drives the 2nd ultrasonic transducer | vibrator 43 and generates mist (step S4). The vibration frequency at this time is set to 1.6 MHz to 2.4 MHz. When the second ultrasonic vibrator 43 is driven at this vibration frequency, high energy is added to the hydrogen peroxide solution stored in the water storage container 41. Then, ultrasonic energy is concentrated on the liquid surface, and mist is scattered from the liquid surface by the energy. This mist includes hydrogen peroxide and water, and is supplied as mist M of hydrogen peroxide water mainly into the mist dedicated duct 37 from the mist discharge port 44. As shown in FIG. 5, in the atomization region where water is misted (atomized), the particle diameter of the mist decreases as the vibration frequency increases.

  Part of the mist M supplied into the mist dedicated duct 37 is supplied into the chilled chamber 12 from the chilled chamber outlet 50 (see arrow B1 in FIG. 2). A part of the mist M supplied into the mist dedicated duct 37 passes through the mist duct 51 for the refrigeration room and the cold air supply duct 30 and is also supplied into the refrigeration room 3 from each cold air supply port 32 ( (See arrow B2 in FIG. 2). Furthermore, a part of the mist M supplied into the mist dedicated duct 37 is also supplied into the vegetable compartment 4 from the vegetable compartment outlet 52 through the communication port 36 (see arrow B3 in FIG. 2).

  The mist M supplied to the chilled chamber 12 is irradiated with ultraviolet rays by the ultraviolet LED 53 in the chilled chamber 12, so that OH radicals are generated in the chilled chamber 12. In this case, it is sprayed on the stored items (objects) accommodated in the chilled chamber 12. At this time, when the mist M in which the hydrogen peroxide solution is mist is irradiated with ultraviolet rays, OH radicals are more likely to be generated than in the case where the mist in which simple water is mist is irradiated with ultraviolet rays. OH radicals have strong oxidizing power and exert sterilization and deodorizing effects. OH radicals are said to be highly reactive and have a short lifetime, but in this embodiment, OH radicals are generated and sprayed in the immediate vicinity of the object, so sterilization and deodorization of OH radicals on the object The effect of can be exhibited effectively. Further, the mist M can be expected to have a moisturizing effect.

  Similarly to the chilled room 12, the mist M supplied to the refrigerated room 3 is irradiated with ultraviolet rays from the ultraviolet LED 53 provided in the refrigerated room 3 in the refrigerated room 3. OH radicals are generated, and the mist M containing the OH radicals is sprayed on the stored items (objects) accommodated in the refrigerator compartment 3, and the effects of sterilization, deodorization, and moisture retention can be expected.

  Further, in the vegetable room 4, similarly to the chilled room 12, the mist M supplied in the vegetable room 4 is irradiated with ultraviolet rays by the ultraviolet LED 53 provided in the vegetable room 4, so that the vegetable room 4 OH radicals are generated in the mist, and the mist M containing the OH radicals is sprayed on the stored items (objects) stored in the vegetable compartment 4, so that the effects of sterilization, deodorization, and moisture retention can be expected.

  When the process of generating the mist M from the hydrogen peroxide solution is performed for a predetermined time ΔT2, for example, 60 minutes (step S5), the control device 22 stops driving the second ultrasonic transducer 43 (step S5). S6). Thereby, one mist supply process is complete | finished. The control device 22 repeats such a mist supply process, for example, every predetermined time. The ultraviolet LED 53 may be turned on and off in conjunction with the mist generation process, or may be continuously turned on.

According to the first embodiment described above, the following operational effects can be obtained.
In the ultrasonic atomizer 40, hydrogen peroxide water is misted, and the mist M is supplied to the chilled chamber 12, the refrigerated chamber 3, and the vegetable chamber 4, each of which constitutes a storage section, through the dedicated mist duct 37. In the chilled room 12, the refrigerator room 3, and the vegetable room 4, the supplied mist M is irradiated with ultraviolet rays by the ultraviolet LED 53. Thereby, in the chilled room 12, the refrigerated room 3, and the vegetable room 4, the mist radicals are irradiated with ultraviolet rays by irradiating the mist M in the vicinity of the respective stored items (objects). The effect of sterilization and deodorization can be exhibited effectively.

  Dedicated duct for mist that constitutes an air passage for sending the mist M of the hydrogen peroxide generated in the ultrasonic atomizer 40 to the chilled chamber 12, the refrigerator compartment 3, and the vegetable compartment 4 which are the object storage units. 37. Although the mist duct 51 for the refrigerator compartment has a bent portion in the middle, each ultraviolet LED 53 irradiates the mist M after passing through the bent portion (downstream from the bent portion) with ultraviolet rays. Since it is installed in the position, specifically, the chilled room 12, the refrigerator room 3, and the vegetable room 4, it prevents the OH radical generated by the irradiation of ultraviolet rays from disappearing at the bent part of the air passage. And the effect of OH radicals can be effectively exhibited.

  Among the storage units, the refrigerator compartment 3 is divided into a plurality of shelves 11 by the shelf plate 11. However, since the ultraviolet LED is installed in each compartment, the effect of OH radicals can be effectively exhibited by this. .

  The ultrasonic atomizing device 40 constituting the mist releasing means includes a water storage container 41 for storing water, and first and second ultrasonic vibrators 42 and 43, and the first ultrasonic vibrator 42 The hydrogen peroxide solution is generated from the water stored in the water storage container 41, and the hydrogen peroxide solution is misted and released by the second ultrasonic transducer 43. Thereby, both the production | generation of hydrogen peroxide water and discharge | release of mist can be performed with one ultrasonic atomizer 40. FIG.

  A first ultrasonic vibrator 42 and a second ultrasonic vibrator 43 having different vibration frequencies are provided. Of these, the first ultrasonic vibrator 42 is a vibration frequency suitable for generating hydrogen peroxide water. The second ultrasonic transducer 43 is driven at a vibration frequency suitable for misting the hydrogen peroxide solution. By appropriately using the first ultrasonic transducer 42 and the second ultrasonic transducer 43, the vibration frequency can be switched. Thereby, the production | generation and mist formation of hydrogen peroxide water can be favorably performed with the one ultrasonic atomizer 40. FIG.

  Since the water to be misted in the ultrasonic atomizer 40 uses the defrost water of the refrigeration cooler 17 stored in the water storage container 41, the water supply to the water storage container 41 can be automatically performed. This saves the user the trouble of supplying water.

  Further, the ultraviolet light itself irradiated from the ultraviolet LED 53 has a bactericidal effect, and a synergistic effect can be expected together with the effect of the OH radical. In this case, it is more effective to irradiate ultraviolet rays in the direction in which the hydrogen peroxide mist M is supplied. In the above-described example, for example, when the ultraviolet LED 53 is disposed at a position where ultraviolet rays are irradiated toward the cold air supply port 32 from which the mist M of hydrogen peroxide water is blown, ultraviolet rays are emitted to the entire mist M blown from the cold air supply port 32. In addition to being able to irradiate, a sterilizing effect by ultraviolet rays can be obtained at positions near the ultraviolet rays.

  In the first embodiment described above, the ultraviolet LED 53 is installed in the chilled room 12, the refrigerated room 3, and the vegetable room 4 which are accommodation parts (storage rooms), but is not limited to this, for example, mist to these accommodation parts You may make it install in the blower outlet 50 for chilled rooms, the cold air supply port 32, and the blower outlet 52 for vegetable rooms used as the M outlet. Further, when the ultraviolet LED 53 is provided in the vicinity of the storage unit (storage chamber), for example, it is provided on the door of the storage unit so as to irradiate the storage unit. That's fine.

  When an ultraviolet LED is used as the ultraviolet irradiation means, it is desirable to use an LED that irradiates ultraviolet rays (particularly 365 nm) in a long wavelength region (315 nm to 400 nm) out of the ultraviolet wavelength region of 10 nm to 400 nm. As the ultraviolet irradiation means, an ultraviolet lamp can be used instead of the ultraviolet LED.

(Second Embodiment)
Next, 2nd Embodiment applied to the drum-type washing machine provided with the drying function as household appliances is described with reference to FIG. 7 and FIG. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment, description is abbreviate | omitted, and a different part is demonstrated.

  The outer box 61 constituting the outer shell of the washing machine has a substantially rectangular box shape, and the front surface 61a is formed in a slanted shape with a front lowering. The front surface 61a is provided with a laundry entrance / exit 62, and a door 63 for opening / closing the laundry entrance / exit 62 is rotatably provided. The door 63 has a double structure. In addition, an operation panel 64 is provided above the front surface 61 a of the outer box 61, and a control device 65 that constitutes a control means is provided on the back side of the operation panel 64. The operation panel 64 is provided with various switches for selecting various driving courses and starting driving, for example. The control device 65 is mainly composed of, for example, a microcomputer, and has a function of controlling the overall operation of the washing machine based on various input signals and previously stored control programs.

  A water tank 66 is elastically supported in the outer box 61 via a damper 67. The water tank 66 has a bottomed cylindrical shape with a closed rear surface, and is disposed in a horizontal axis state in which the axial direction is in the front-rear direction and in an inclined state in which the rear side is lowered. A front opening of the water tub 66 is connected to the laundry entrance 62 by a bellows 68. A drum 69 is rotatably disposed in the water tank 66. The drum 69 also has a bottomed cylindrical shape with a closed rear surface, and is arranged in a horizontal axis state in which the axial direction is the front-rear direction and an inclined state in which the rear side is lowered, like the water tank 66.

  For example, a liquid-sealed rotary balancer 70 is provided at the peripheral edge of the front opening of the drum 69. The front opening of the drum 69 communicates with the laundry entrance / exit 62, and the laundry is accommodated in the drum 69 through the laundry entrance / exit 62 so as to be put in and out. A plurality of baffles 71 are provided in the inner peripheral portion of the drum 69, and a plurality of holes 72 through which water and air can be passed are formed in the peripheral wall portion (body portion) of the drum 69. A plurality of hot air inlets 73 are formed on the rear wall of the drum 69 in an annular arrangement that is concentric with the central axis. The drum 69 constitutes a storage unit that stores a laundry (not shown) as an object. In the present embodiment, the drum 69 functions as a washing tub, a dewatering tub, and a drying tub.

  The water tank 66 has a hot air outlet 74 formed in the upper part of the front (above the front opening), and the hot air inlet 75 in the upper part of the rear surface facing the rotation locus of the hot air introduction port 73. Is formed. A water injection case 77 is connected to the upper part of the water tank 66 through a water supply hose 76. A tap water receiving port 79 is connected to the water injection case 77 through a water supply valve 78. A water supply hose connected to a tap faucet (not shown) is connected to the tap water receiving port 79, and tap water is supplied from the tap water receiving port 79 through a water supply valve 78, a water injection case 77, and a water supply hose 76. The water tank 66 and the drum 69 are supplied. In addition, detergents (detergents, softeners, bleaches, etc.) are put into the water injection case 77, and these detergents are supplied into the water tank 66 together with tap water. Yes.

  A drainage port 80 is formed at the bottom of the bottom of the water tank 66, and a drainage hose 82 is connected to the drainage port 80 via a drainage valve 81. When the drain valve 81 is opened, the water in the water tank 66 is discharged out of the machine through the drain hose 82.

  A washing machine motor 83 is attached to the back surface of the water tub 66, and a rotating shaft 84 of the washing machine motor 83 projects into the water tub 66. The distal end portion of the rotation shaft 84 is connected to the center portion of the rear surface of the drum 69. Thereby, the drum 69 is coaxially supported by the water tank 66 so that rotation is possible. This washing machine is configured to directly rotate and drive the drum 69 by a washing machine motor 83, and adopts a direct drive system using the washing machine motor 83. In this case, the washing machine motor 83 is composed of an outer rotor type brushless DC motor.

  A base plate 85 is disposed below the water tank 66 (on the bottom surface of the outer box 5), and a ventilation duct 86 is disposed on the base plate 85. The ventilation duct 86 has an air inlet 87 at the upper part of the front end, and the hot air outlet 74 of the water tank 66 is connected to the air inlet 87 via a connection hose 88 and a return air duct 89. ing. The return air duct 89 is piped so as to bypass the side portion of the front opening of the water tank 66.

  A casing 92 of a circulation fan 91 is connected to the rear end portion of the ventilation duct 86, and a discharge port 92 a of the casing 92 is connected to the hot air of the water tank 66 via the connection hose 93 and the air supply duct 94. Connected to the inlet 75. As shown in FIG. 8, the air supply duct 94 is piped so as to bypass the right side of the washing machine motor 83 when viewed from the back side of the water tub 66 (washing machine). The air supply duct 94 has a bent portion 94a curved at the top. Here, the return air duct 89, the connection hose 88, the ventilation duct 86, the casing 92 of the circulation fan 91, the connection hose 93, and the air supply duct 94 constitute a circulation air path 95 connected to the water tank 66. .

  In this case, the circulation fan 91 is constituted by a centrifugal fan. That is, the circulation fan 91 has a centrifugal impeller 96 inside the casing 92 and a fan motor 97 that rotates the centrifugal impeller 96 outside the casing 92. The circulation blower 91 functions as a blower that circulates the air in the water tank 66 (in the drum 60) through the circulation air passage 95.

  An evaporator 98 (corresponding to dehumidifying means) is arranged at the front part and a condenser 99 (corresponding to heating means) is arranged at the rear part of the circulation duct 95 inside the ventilation duct 86. Although neither the evaporator 98 nor the condenser 99 is shown in detail in detail, the evaporator 98 and the condenser 99 are of a finned tube type in which a large number of heat transfer fins are arranged at a fine pitch, and are excellent in heat exchange. A wind flowing through the ventilation duct 86 (see arrows shown by solid lines in FIG. 7) passes between the fins.

  The evaporator 98 and the condenser 99 constitute a heat pump 101 together with the compressor 100 and a flow rate control valve (for example, an electronic control valve) (not shown). In this heat pump 101, the compressor 100, the condenser 99, the flow rate control valve, and the evaporator 98 are cycle-connected in this order (refrigeration cycle) by the refrigerant circulation pipe, and the refrigerant is supplied by operating the compressor 100. It is designed to circulate. The air flowing in the circulating air passage 95 is cooled and dehumidified by the evaporator 98 and heated by the condenser 99 to be warmed. The laundry in the drum 69 is dried by heating and dehumidification with the warm air.

  In the washing machine having such a configuration, the ultrasonic atomizing device 103 constituting the mist discharging means is provided in the middle portion of the circulation air passage 95, specifically, in the lower portion of the air supply duct 94. This ultrasonic atomizer 103 is different from the ultrasonic atomizer 40 of the first embodiment in the following points. That is, although the mist discharge port 44 is provided in the cover 41b of the water storage container 41 constituting the water storage unit, the opening 45 and the partition plate 46 for receiving defrost water are not provided. A mist connection duct 104 is provided below the air supply duct 94, and the water storage container 41 is disposed below the mist connection duct 104, and the upper end portion of the mist discharge port 44 is connected to the mist connection duct 104. Is inserted from below.

  One end of a water supply hose 105 for mist is connected to the container main body 41 a of the water storage container 41. The other end of the water supply hose 105 for mist is connected to the water supply valve 78, and tap water is supplied to the water storage container 41 via the water supply hose 105 for mist by switching the water supply valve 78. Is possible. In addition, the 1st ultrasonic transducer | vibrator 42 and the 2nd ultrasonic transducer | vibrator 43 are provided in the bottom part of the container main body 41a similarly to the ultrasonic atomizer 40 of 1st Embodiment.

  Here, when mist is generated in the water storage container 41 by driving the second ultrasonic transducer 43, the mist M is discharged to the air supply duct 94 through the mist connection duct 104. The mist M discharged to the air supply duct 94 passes through the air supply duct 94 together with the hot air flowing through the circulation air passage 95, and is supplied into the drum 69 through the hot air inlet 75 and the hot air inlet 73. Therefore, in this case, the air supply duct 94 constitutes a blower passage that sends the mist M discharged from the ultrasonic atomizer 103 into the drum 69 (washing tub, housing portion).

  Then, the mist M (warm air) is positioned so as to sandwich the warm air inlet 75 in the vicinity of the warm air inlet 75 serving as a supply port for supplying the mist M (warm air) from the air supply duct 94 to the drum 69 (washing tub, accommodating portion). Individual ultraviolet LEDs 53 (ultraviolet irradiation means) are provided. The ultraviolet LED 53 irradiates the mist M passing through the hot air inlet 75 with ultraviolet rays. In this case, the ultraviolet LED 53 provided in the vicinity of the hot air inlet 75 is separated from the ultrasonic atomizing device 103 and is provided in the vicinity of the drum 69 (washing tub, accommodating portion).

  In addition, on the inner surface of the door 63, an ultraviolet LED 53 is installed at a position facing the opening of the drum 69 from the front. The ultraviolet LED 53 installed on the door 63 irradiates the mist M supplied into the drum 69 through the opening of the drum 69 with ultraviolet rays. In this case, the ultraviolet LED 53 installed on the door 63 is also separated from the ultrasonic atomizer 103 and is provided in the vicinity of the drum 69 (washing tub, storage section).

  Note that the ultraviolet LED 53 may be provided around the opening of the water tank 66 as long as it can irradiate ultraviolet rays into the drum 69. Further, the ultraviolet LED 53 can be provided inside the drum 69 (washing tub, accommodating portion) using, for example, a battery as a driving source.

  In the case of the above configuration, for example, during the washing operation before the drying operation, the first ultrasonic vibrator 42 in the ultrasonic atomizer 103 is driven (vibration frequency: 200 kHz to 600 kHz) to Hydrogen peroxide water is generated from water. During the drying operation, the second ultrasonic transducer 43 is driven (vibration frequency: 1.6 MHz to 2.4 MHz) to mist hydrogen peroxide water in the water storage container 41, It discharges from the mist discharge port 44. The discharged mist M passes through the air supply duct 94 together with the hot air flowing through the circulation air passage 95, is supplied into the drum 69 through the hot air inlet 75 and the hot air inlet 73, and is scattered on the laundry in the drum 69. The During the drying operation, the drum 69 is rotated forward and reverse at a low speed, whereby the laundry in the drum 69 is agitated.

  At this time, when the mist M passes through the hot air inlet 75, OH radicals are generated by irradiating the mist M with the ultraviolet rays of the ultraviolet LED 53, and the mist M containing the OH radicals is applied to the laundry in the drum 69. It will be sprayed. Further, since ultraviolet rays are also irradiated into the drum 69 from the ultraviolet LED 53 provided on the door 63, OH radicals are also generated from the mist M in the drum 69. By spraying the OH radicals on the laundry, it is possible to expect the effects of sterilization and deodorization of the laundry in the drum 69.

According to the second embodiment described above, the following operational effects can be obtained.
In the ultrasonic atomizer 103, the hydrogen peroxide solution is misted, and the mist M is supplied into the drum 69 containing the laundry through the air supply duct 94, and the mist M from the air supply duct 94 to the drum 69 is supplied. In the warm air inlet 75 serving as a supply port, UV light is irradiated to the mist M passing therethrough by the UV LED 53, and in addition, the UV LED 53 provided on the door 63 is also irradiated with UV light in the drum 69. Thereby, the effects of sterilization and deodorization by the OH radicals can be effectively exhibited by irradiating the mist M with ultraviolet rays to generate OH radicals and spraying them near the laundry to be the object.

  The air supply duct 94 that constitutes the air passage for sending the mist M of the hydrogen peroxide solution generated in the ultrasonic atomizer 103 to the drum 69 that is the object storage unit has a bent portion 94a on the way. However, each ultraviolet LED 53 passes through the bent portion 94a (on the downstream side of the bent portion 94a) and irradiates the mist M with ultraviolet rays, specifically, a temperature serving as a supply port to the drum 69. Since it is installed in the air inlet 75 and the door 63 which is a position for direct irradiation in the drum 69, it is possible to prevent the OH radicals generated by the irradiation of ultraviolet rays from disappearing at the bent portion 94a of the air passage, The effect of OH radicals can be exhibited effectively.

  In the second embodiment described above, in the washing and drying machine having a drying function, the air supply duct 94 of the circulation air passage 95 for drying is used as an air passage for sending the mist M to the drum 69. It can also be applied to non-functional washing machines. In this case, it is necessary to provide a dedicated air passage and a blower. Further, the present invention is not limited to the drum type washing machine, and can be applied to a vertical washing machine in which the axis of the washing tub is directed in the vertical direction.

  As described above, according to the home electric appliance of the present embodiment, the hydrogen peroxide solution is made into a mist by the mist releasing means and discharged, and the mist is supplied through the air passage to the storage unit in which the object is stored. At this time, the mist is irradiated with ultraviolet rays by ultraviolet irradiation means. Here, by irradiating the mist of hydrogen peroxide water with ultraviolet rays, OH radicals (hydroxy radicals) having strong oxidizing power are generated, and the mist containing the OH radicals is supplied to the object, so that sterilization and Deodorizing effect can be expected. At this time, since OH radicals have high reactivity and have a short lifetime and disappear in a short time, it is preferable to irradiate ultraviolet rays near the object. Therefore, in the present embodiment, the ultraviolet irradiation means is separated from the mist generation means and is provided in or near the accommodation portion, and can irradiate the mist with ultraviolet rays near the object. A radical can be made to act effectively on a target object, and sterilization and a deodorizing effect can be exhibited effectively.

  In the refrigerator of the present embodiment, the above-described means is applied to the refrigerator, and OH radicals can be effectively acted on stored items such as foods stored in a storage room as an object. A deodorizing effect can be exhibited effectively.

  In the washing machine of the present embodiment, the above-described means is applied to the washing machine, and OH radicals can be effectively acted on the laundry stored in the washing tub as an object, so that sterilization and deodorization can be performed. The effect can be exhibited effectively.

  In each of the above-described embodiments, the hydrogen peroxide solution is generated by the vibration of the ultrasonic vibrator. However, this may be performed by other means, for example, a known electrolyzer.

  In the drawings, 1 is a refrigerator main body, 3 is a refrigerator compartment (storage room, storage part), 4 is a vegetable room (storage room, storage part), 12 is a chilled room (storage room, storage part), 22 is a control device, 30 Is a cool air supply duct (air flow path), 37 is a duct exclusively for mist (air flow path), 40 is an ultrasonic atomizer (mist discharge means), 41 is a water storage container (water storage part), and 42 is a first ultrasonic vibration. Child, 43 is a second ultrasonic vibrator, 51 is a duct for mist for a refrigerator compartment (air blowing path), 53 is an ultraviolet LED (ultraviolet irradiation means), 61 is an outer box, 65 is a control device, 66 is a water tank, 69 Denotes a drum (washing tub, housing portion), 75 denotes a hot air inlet (supply port), 94 denotes an air supply duct (air supply passage), 94a denotes a bent portion, and 103 denotes an ultrasonic atomizer (mist discharge means).

Claims (9)

A storage section for storing the object;
Mist releasing means for mist-generating and releasing hydrogen peroxide water;
An air passage that sends the mist discharged from the mist discharge means to the housing;
And an ultraviolet irradiation unit that is provided in or near the storage unit and that irradiates the mist with ultraviolet rays.   2. The air passage has a bent portion in the middle thereof, and the ultraviolet irradiation means is installed at a position for irradiating the mist after passing through the bent portion with ultraviolet rays. The home appliance described.   The household electrical appliance according to claim 1, wherein the housing section is divided into a plurality of sections, and the ultraviolet irradiation means is installed in each section of the housing section.   The household electrical appliance according to any one of claims 1 to 3, wherein the ultraviolet irradiation means is installed in the vicinity of a supply port that supplies the mist from the air passage to the housing unit.   The mist releasing means includes a water storage section for storing water and an ultrasonic vibrator, and generates hydrogen peroxide water from the water stored in the water storage section by the ultrasonic vibrator, and the peroxidation thereof. The household electrical appliance according to any one of claims 1 to 4, wherein hydrogen water is misted and released.   6. The home appliance according to claim 5, wherein the frequency of the ultrasonic transducer is switchable.   The frequency of the ultrasonic vibrator can be switched between a frequency for generating hydrogen peroxide solution and a frequency for misting the hydrogen peroxide solution, and the frequency for generating the hydrogen peroxide solution is The household electrical appliance according to claim 6, wherein the frequency is lower than a frequency at the time of misting the hydrogen peroxide solution. A refrigerator body having a storage room for storing a stored product such as food as an object;
Mist releasing means for mist-generating and releasing hydrogen peroxide water;
An air passage for sending the mist discharged from the mist discharge means to the storage chamber;
A refrigerator comprising: an ultraviolet irradiation unit that is spaced apart from the mist discharging unit and is provided in or near the storage chamber and irradiates the mist with ultraviolet rays. A water tank disposed in the outer box;
A washing tub disposed in the water tub and containing the laundry as an object,
Mist releasing means for mist-generating and releasing hydrogen peroxide water;
An air passage for sending the mist released from the mist releasing means to the washing tub;
A washing machine, comprising: an ultraviolet irradiation unit that is provided in the laundry tub or in the vicinity of the laundry tub and that irradiates the mist with ultraviolet rays.

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