JP4353993B2 - Drum type washer / dryer - Google Patents

Description

  The present invention relates to a drum type washing and drying machine.

  A drum-type washing / drying machine generally includes a drum rotatably disposed in a water tank, and performs washing, rinsing, and drying on laundry such as clothes accommodated in the drum. In recent years, a product with increased added value has been proposed by adding functions to this drum type washing and drying machine to deodorize odors attached to clothes and to disinfect bacteria and the like (Patent Document 1). 2).

  Patent Document 1 discloses a drum-type washing and drying machine equipped with an ion generator that generates positive ions and negative ions having the effect of sterilizing airborne bacteria in the air. This drum-type washing and drying machine is provided with an ion generator at a position above the water tank in the middle of a circulating air passage that is routed forward through the back and above the water tank. One end of the circulation air passage is connected to an outlet opening at the lower back of the aquarium, and the other end of the circulation air passage is packed to adhere to the opening / closing lid provided at the periphery of the opening of the aquarium. The positive ions and negative ions generated from the ion generator are supplied into the drum through the circulation air passage. Patent Document 1 also proposes an ion generator provided above the rear part of the water tank, the ion discharge port of which is directly connected to the water tank, and positive ions and negative ions are directly supplied into the drum. .

Patent Document 2 discloses a drum-type washing and drying machine equipped with an ozone generator that generates ozone having an effect of deodorizing odors attached to clothes and sterilizing bacteria. This drum type washing and drying machine supplies ozone generated from an ozone generator provided in the lower part of the water tank in the middle of a circulating air path (dry air path) routed forward through the back and above the water tank. For this purpose, a supply path is connected. One end of the circulation air passage is connected to an outlet (exit) that opens at the lower back of the water tank, and the other end of the circulation air passage is connected to a circulation opening (inlet) provided at the upper front of the water tank. Thus, the ozone generated from the ozone generator is supplied to the circulation air passage through the supply passage, so that the ozone is further supplied into the drum through the circulation air passage.
Japanese Patent Publication No. 2003-135889 (see FIGS. 1 and 3) JP 2007-195896 A (see FIG. 2)

  However, in Patent Document 1, since the outlet of the circulating air passage or the ion discharge port is connected to the water tank, the detergent bubbles that have jumped out of the water tank in the washing process and the rinsing process enter the circulating air path or the ion supply path, It sometimes adhered to the generator. Moreover, the water vapor | steam which distribute | circulates a circulation air path at the drying process may adhere to an ion generator. In addition, since the ion generator is installed above the washing tub, when the temperature inside the machine rises, hot air stays around the ion generator and the temperature of the ion generator rises abnormally. was there. In these cases, the reliability of the ion generator decreases. In addition, since the outlet of the circulation air passage or the ion discharge port and the water tank are directly connected, there is a risk that if the water tank vibrates, the connection part may be damaged or cracked, and the number of parts for the direct connection As a result, there is a problem that the work is increased, resulting in a complicated structure and high cost. In addition, since the circulation air passage passes above the water tank, it is necessary to secure a space for disposing the circulation air passage and the ion generation device above the interior of the machine, which causes a problem that the apparatus becomes large.

  Moreover, in patent document 2, since ozone which is unfavorable for health is used for a human body, ensuring safety, such as providing an ozone leakage prevention structure, was essential. In addition, there are problems that parts that come into contact with ozone are easily corroded, the frequency of parts replacement increases, and the maintenance cost increases, and the product life is shortened due to the end of production of replacement parts. In addition, after the deodorizing / sterilizing operation using ozone, there is a problem that an ozone odor is generated when the opening / closing lid is opened and the laundry in the drum is taken out.

  The present invention has been made in view of the above problems, and stably generates ions having a sterilizing and deodorizing action from an ion generator, and the air in the drum regardless of the vibration of the water tank or the drum or the vibration. An object of the present invention is to provide a drum-type washing and drying machine that can efficiently remove odors and germs generated from clothing by stably supplying the air to a circulation air passage that circulates water.

In order to achieve the above object, a drum type washing and drying machine of the present invention includes a water tank, a drum rotatably disposed in the water tank, and a laundry drum for washing, dehydrating and drying, and the drum. A circulation air passage for taking out the air from one end and returning it to the drum from the other end, and a heating means provided in the circulation air passage for heating the air flowing through the circulation air passage. In the drum-type washing / drying machine, an ion generator that is disposed above the water tank and generates ions having a sterilizing and deodorizing action by discharge, and an ion supply blowing unit that blows ions generated from the ion generator. An ion supply air passage for supplying ions generated from the ion generator to an ion inlet hole provided in the upper part of the water tank, and one end of the ion supply air passage is connected to a blower outlet of the air blowing means. The other end to one end of said ion-supplying air path is connected to the outlet of the blower means, the other end is opposed spaced toward the ion feed-in hole as an ion outlet, the diameter of the ion outlet is A steam receiving portion that is larger than the ion introduction hole and is formed around the other end of the ion supply air passage so that the steam ejected from the ion introduction hole to the outside of the water tank is dropped into the outer surface of the water tank. It is characterized by providing .

  In the drum-type washing and drying machine of the present invention, the ion generator generates positive ions and negative ions.

  According to this configuration, positive ions and negative ions are harmless to the human body and are not corrosive to parts. Therefore, safety is higher than conventional products using ozone, and an increase in maintenance costs can be prevented.

  The drum type washing and drying machine according to the present invention is characterized in that the ion inlet hole communicates with a space inside the back surface of the water tank and outside the back surface of the drum.

  According to this configuration, the ions fed into the space inside the back of the water tank and outside the back of the drum through the ion feed hole are mixed with the air flowing through the circulation air passage from the space and supplied into the drum. The Therefore, it is not necessary to separately provide a special path for guiding ions to the circulation air path.

  In the drum type washing and drying machine of the present invention, a circulation blower for forcibly circulating the air in the circulation air passage is provided outside the back surface of the water tank, and the ion inlet hole is vertically above the circulation blower. It is characterized by having located.

  According to this configuration, ions are fed from the ion feed hole toward the most negative pressure in the space inside the back surface of the water tank and outside the back surface of the drum, and efficiently circulate through the circulation air passage. Ions can be mixed into the air.

  Further, the drum type washing and drying machine of the present invention is characterized in that the circulation air passage is formed in a space below the inner peripheral surface of the water tank and below the outer peripheral surface of the drum.

  According to this configuration, since the circulation air passage is not routed above the water tank, the dead space existing above the water tank is effectively used to arrange the ion generating device, the blowing means, and the ion supply air passage. Is possible.

  Moreover, the drum type washing / drying machine of the present invention is characterized in that the ion supply air passage is a duct made of hard resin.

  According to this configuration, since the ion supply air passage can be formed with a robust duct, if the duct shape is unified with a shape that can bypass the existing parts installed in the aircraft, the dead space in the aircraft can be effectively used. In addition, the cost of parts can be reduced.

  The drum type washing and drying machine of the present invention is characterized in that a check valve is provided at the outlet of the blowing means.

  According to this configuration, detergent bubbles leak out of the water tank at the upper part of the water tank in the washing process or rinsing process, or water vapor generated in the drying process is ejected from the ion inlet hole at the upper part of the water tank. Even if it enters the road, the detergent foam and water vapor are blocked by the check valve provided at the outlet of the blowing means, so that the detergent foam and water vapor are prevented from adhering to the ion generator. Therefore, positive ions and negative ions can be reliably generated from the ion generator.

  Moreover, the drum type washing / drying machine of the present invention is characterized in that a filter is provided at the suction port of the blowing means.

  According to this configuration, even if dust is contained in the air sucked into the ion supply air passage by the operation of the air blowing means, the dust is captured by the filter provided at the suction port of the ion supply air passage, so that the ion generator The dust is prevented from adhering to the surface. Therefore, positive ions and negative ions can be reliably generated from the ion generator.

  Further, the drum type washing and drying machine of the present invention is a steam receiver for dropping the steam sprayed from the ion inlet hole to the outside of the water tank to the outside of the water tank around the other end of the ion supply air passage. It is characterized by providing a section.

  According to this configuration, the water vapor generated in the drying process and ejected from the hole in the upper part of the water tank collides with the steam receiving part provided in the peripheral part of the other end of the ion supply air passage to form water droplets. Water droplets drop on the outer surface of the water tank along the wall surface of the steam receiving portion. Therefore, water vapor can be prevented from entering the ion supply air passage.

  Moreover, the drum type washing / drying machine of the present invention is characterized in that the ion inlet hole is a hole for venting the water tank.

  According to this configuration, since the air vent hole provided in the upper part of the water tank can be used as an ion inlet hole, it is not necessary to change the mold for manufacturing the water tank, and the manufacturing cost of the drum type washing and drying machine can be reduced. .

  According to the present invention, the other end (discharge port) of the ion supply air passage is separated from the ion inlet hole provided in the upper part of the water tank, so that the detergent bubbles are transferred to the ion transport part in the upper part of the water tank in the washing process and the rinsing process. Even if water leaks from the inlet to the outside of the water tank, or water vapor is generated from the clothes in the drum during the drying process and is ejected from the ion inlet hole at the top of the water tank, the detergent bubbles and water vapor enter the air supply path. Is suppressed. Therefore, ions that have sterilization and deodorizing action can be stably generated from the ion generator, and can be stably supplied to the circulation air passage that circulates the air in the drum regardless of the vibration of the water tank or the drum. Thus, it is possible to efficiently remove odors and germs generated from clothing.

  Hereinafter, a drum-type washing and drying machine according to an embodiment of the present invention will be described with reference to FIGS. 1 is a schematic view of a drum-type washing / drying machine as viewed from obliquely upward, FIG. 2 is a schematic longitudinal sectional view of the drum-type washing and drying machine viewed from the right side by cutting near the left end of FIG. 1, and FIG. (A direction parallel to CL in FIG. 2) FIG. 3 is a schematic longitudinal sectional view showing a configuration inside the aquarium as seen from the rear. FIG. 4 is a schematic longitudinal sectional view of the drum type washing and drying machine cut from the right end of FIG. 1 and viewed from the right side, and FIG. 5 is a schematic view of the upper part of the machine viewed from obliquely above with the top plate removed.

  As shown in FIG. 1, the drum-type washing and drying machine according to the embodiment of the present invention includes an outer box 1 that constitutes an appearance surface thereof. The outer box 1 includes a top plate 2 on the top surface and a base 3 on the bottom, and includes a body portion 4 forming front, rear, left and right surfaces. The top plate 2 is provided with a step portion 2a which is lowered by one step on the rear side, and a tap water supply port 9 and a bath water supply port 10 which will be described later are arranged on the step portion 2a. In addition, as shown in FIG. 2, a metal part to which one end of a suspension 52, 54 is connected at the center in the front-rear direction of the drum type washing and drying machine on the back side of the top plate 2 (inside the outer box 1). A suspension mounting portion 17 made of a plate material is provided.

  The base 3 has a substantially rectangular horizontal cross-section, and the front and rear, left and right surfaces of the body 3 constituting the upper part thereof become smaller by one step toward the inner side of the drum-type washing and drying machine body. Configured as follows. Below the bottom surface of the bottom base 3, legs 3 a that are in contact with the floor surface and support the drum type washing and drying machine at the time of installation are attached in the vicinity of each vertex of the substantially rectangular bottom base 3. Further, on the upper side of the bottom surface of the base 3, damper mounting portions 18 and 19 to which one ends of the dampers 50 and 51 are connected are arranged. When the drum-type washing and drying machine is viewed from the front side, the damper mounting portion 18 is disposed on the left side, and the damper mounting portion 19 is disposed on the right side, and the damper mounting portion 18 and the damper mounting portion 19 are the same when viewed from the side. Configured to be position. In FIG. 2, the reference numeral of the damper mounting portion 19 is shown in parentheses with respect to the reference numeral of the damper mounting portion 18, and this is shown by the damper mounting portion 18 and the damper as viewed from the side in the direction shown in the drawing. It shows that the attachment portion 19 is attached at the same position.

  As shown in FIG. 2, the body 4 has a substantially rectangular horizontal cross section, and the front side thereof is seen from the side so that the surface is inclined rearward with respect to the vertical surface as it goes upward. Are configured in a substantially arc shape. As shown in FIG. 1, on the front side of the body portion 4, an outer box opening 4 a that communicates the inside and outside of the outer box 1, a detergent case 6 that contains detergent, bleach, and softener, and operation keys and display units And an operation panel 7 having.

  The outer box opening 4a is opened and closed by an open / close door 5 attached to the body 4 so as to be slidable in the vertical direction. The detergent case 6 includes a container (not shown) provided on the inner side of the body 4 and is slidable in the front-rear direction on the upper left portion of the outer box opening 4 a of the body 4. The operation panel 7 is provided at the upper right part of the outer box opening 4a of the body part 4 on the right side of the detergent case 6, and can input various settings and operation instructions by the user's operation.

  As shown in FIG. 2, a control circuit 8 for controlling the operation of the drum type washer / dryer is disposed on the back side of an operation panel 7 to be described later, which is the inner side of the drum type washer / dryer. The control circuit 8 appropriately sets an operation program such as “standard course”, “big course”, and “dry course” stored in the storage means (not shown) so that the user appropriately sets the washing process, the rinsing process, and the dehydrating operation ( , And the drying step), or the operation of each part of the drum type laundry dryer is controlled so that each step is performed independently. In the drum type washing and drying machine of the present invention, as will be described later, in addition to such washing, rinsing, dehydrating and drying processes, clothing is stored in the drum as a single process, and positive ions and negative ions are discharged. By supplying air containing ions into the drum, it is possible to perform a sterilization and deodorizing operation for removing odors and germs generated from clothing.

  As shown in FIG. 2, tap water supply for supplying water from a faucet (not shown) for supplying city water into the drum type washing / drying machine is provided on the step portion 2a which is one step lower on the rear side of the top plate 2. A mouth 9 and a bath water supply port 10 for supplying bath water into the drum type washing and drying machine are provided. The city water supplied from the tap water supply port 9 passes through a water supply pipe 11, a detergent case 6, a water supply container 12 provided with the detergent case 6, a water supply duct 13 that connects the water supply container 12 and a water tank 20 to be described later. 20 flows in. A water supply valve 14 is provided in the water supply pipe 11, and the supply of city water into the water tank 20 is controlled by opening and closing the water supply valve 14 based on control from the control circuit 8. The water supply duct 13 is made of a flexible material such as nylon or rubber, for example, and is configured to hardly transmit the vibration of the water tank 20 to the outer case 1.

  In addition, a drying water supply pipe 38 is connected to the upstream side of the water supply valve 14 in the water flow direction of the water supply pipe 11. The drying water supply pipe 38 is provided with a drying water supply valve 48. The drying water supply valve 48 is opened and closed based on control from the control circuit 8 to pour city water into the heat exchange plate 41 described later. Control is made.

  Also, the bath water sucked from the bath water supply port 10 passes through the bath water pipe 15, the detergent case 6, the water supply container 12 provided with this detergent case 6, the water supply duct 13 connecting the water supply container 12 and the water tank 20, It flows into a water tank 20 to be described later. The bath water pipe 15 is provided with a bath water pump 16, and the bath water pump 16 is driven or stopped based on the control from the control circuit 8 to control the supply of bath water into the water tank 20. The

  As shown in FIG. 2, a water tank 20 having a bottomed cylindrical shape is disposed inside the outer box 1 so that the rear side thereof is inclined downward by 5 to 30 ° with respect to the horizontal plane. As shown in FIG. 3, the water tank 20 has a cylindrical shape on the upper side peripheral wall as viewed from the axial direction of the cylinder (direction parallel to CL in FIG. 2), and a part of the lower side peripheral wall is outside. It is formed so as to protrude to the radial side. The water tank 20 is configured by connecting a front portion 21 that forms the front side with respect to the axial direction and a rear portion 22 that forms the rear side with respect to the axial direction of the water tank 20 with screws 29. The front portion 21 is provided with a suspension attachment portion 23 to which one end of the suspension 52 is connected to the central portion of the upper outer peripheral surface thereof. The rear portion 22 is provided with a suspension attachment portion 25 to which one end of the suspension 54 is connected to the rear central portion of the upper outer peripheral surface. Further, the rear portion 22 is provided with damper mounting portions 26 and 27 in which one ends of the dampers 50 and 51 are connected to the lower outer peripheral surface. When viewed from the front side of the drum type washing and drying machine, the damper mounting portion 26 is arranged on the left side, and the damper mounting portion 27 is on the right side, and the damper mounting portion 26 and the damper mounting portion 27 are located at the same position when viewed from the side. It is comprised so that.

  Moreover, as shown in FIG. 2, the front part 21 is provided with a water tank opening 21a that opens to face the outer box opening 4a. A door packing 28 is attached to the water tank opening 21a so as to connect each opening in a watertight manner to the outer box opening 4a. The door packing 28 includes a bellows portion 28 a and is difficult to transmit vibration of the water tank 20 to the outer box 1. When the open / close door 5 is closed, the open / close door 5 and the seal portion 28b of the door packing 28 are in close contact with each other in a watertight manner, so that liquid in the water tank 20 can be prevented from leaking from the outer box opening 4a. A water supply duct 13 is connected to the upper central portion of the water tank 20, and water supplied from the tap water supply port 9 and the bath water supply port 10 flows into the water tank 20 through the water supply duct 13.

  On the other hand, in the place where the height from the floor surface in the lower rear part of the water tank 20 is the lowest, as shown in FIG. 2, liquid such as water and washing liquid in the water tank 20 is discharged to the outside of the water tank 20. A drainage duct 30 is connected. The drainage duct 30 is connected to a drainage hose 32 that communicates with the outside of the drum-type washing / drying machine main body through a filter unit 31 that removes lint in the liquid flowing from the water tank 20 and a drainage valve 33. . The drain valve 33 is controlled to open and close based on the control of the control circuit 8 to control the discharge of water from the water tank 20.

  As shown in FIG. 2, a drum 34 having a bottomed cylindrical shape is provided inside the water tank 20, and the cylindrical shaft (CL in FIG. 2) is located on the rear side with respect to the horizontal axis, as in the water tank 20. It is arranged so as to be inclined downward by 5 to 30 °. As shown in FIG. 3, the cylindrical shaft of the drum 34 is arranged substantially concentrically with the cylindrical shaft of the upper peripheral wall of the water tank 20. That is, the distance between the lower side peripheral wall of the drum 34 and the lower side peripheral wall protruding to the outer diameter side of the water tank 20 is configured to be larger than the distance between the upper side peripheral wall of the drum 34 and the upper side peripheral wall of the water tank 20. A blower duct 39 to be described later is disposed in a space between the lower peripheral wall of the drum 34 and the lower peripheral wall protruding to the outer diameter side of the water tank 20. The drum 34 is provided with a drum opening 34a that opens opposite to the outer box opening 4a and the water tank opening 21a, and the outer box opening 4a, the water tank opening 21a, and the drum opening 34a are interposed therebetween. Thus, the laundry is put into and out of the drum 34.

  The drum 34 is provided with a large number of small holes 34b over the entire circumferential surface of the drum 34 (in FIG. 2, only twelve small holes 34b are shown, and the other small holes 34b are not shown). The small holes 34b allow the inside of the water tank 20 and the inside of the drum 34 to communicate with each other, so that air and liquid between the inside of the water tank 20 and the inside of the drum 34 can enter and exit. A baffle 34 c is provided on the inner wall surface of the drum 34 so as to protrude toward the cylindrical central axis of the drum 34. The baffles 34c are arranged at, for example, three locations (three rotation axes) at 120 ° intervals so as to be rotationally symmetric having n (n = 2 or more natural numbers) rotation axes in the circumferential direction. The baffle 34c performs washing or rinsing of the laundry by repeatedly lifting the contained laundry and dropping it into the washing water or rinsing water as the drum 34 rotates in the washing step or the rinsing step.

  A drum shaft 34 d whose axial direction is the same as the cylindrical shaft of the drum 34 is provided at the center of the back surface of the drum 34 so as to protrude rearward. The drum shaft 34 d passes through the bottom surface of the rear portion 22 that forms the rear side of the water tank 20, and the front end portion of the drum shaft 34 d enters a motor 36 that is an electric motor attached to the rear surface side of the rear portion 22 with a screw 35. The motor 36 has a motor cover 36a that covers the outer periphery thereof, a bearing 36b that rotatably supports the drum shaft 34d, a rotor 36c that rotationally drives the drum shaft 34d, and a rotational driving force applied to the rotor 36c by magnetic force. And a stator 36d. The motor 36 drives the rotor 36 c via the stator 36 d based on the control by the control circuit 8, and rotates the drum 34.

  Further, in the periphery of the drum opening 34a, there is provided a throttle portion 34e formed so that the peripheral surface of the drum 34 has a small diameter toward the inside in the radial direction, and a liquid balancer 37 is fixed along the outer periphery thereof. The liquid balancer 37 includes a hollow outer shell having an annular shape and a liquid such as salt water enclosed therein. This liquid balancer 37 can cancel out the imbalance by the movement of the liquid inside, especially when an imbalance occurs due to the bias of the laundry during the high-speed rotation of the dehydration process.

  As shown in FIG. 4, a blower duct 39 is formed in the right side space below the inner peripheral surface of the water tank 20 and below the outer peripheral surface of the drum 34. The air duct 39 constitutes a circulation air path for taking out the air in the drum 34 from the rear end and returning it from the front end to the drum 34. The rear end of the air duct 39 is connected to a fan case 45 described later. The front end of the air duct 39 constitutes an air outlet 39a located between the lower edge of the water tank opening 21a and the lower edge of the drum opening 34a. Hot air is blown out toward the lower part of the space in the drum 34 through the air blowing port 39a.

  As shown in FIG. 3, a heater portion 40 (heating means) is provided in the air duct 39. The heater unit 40 includes a heater case 43 and a heater 44 disposed in the heater case 43. The heater 44 heats the washing water and the rinsing water in the washing process and the rinsing process to improve the washing effect and the rinsing effect, and heats the air in the water tank in the drying process.

  As shown in FIG. 2, a heat exchange plate 41 for dehumidification is disposed in the space on the left side below the inner peripheral surface of the water tank 20 and below the outer peripheral surface of the drum 34. The heat exchange plate 41 has an open cross-sectional shape, and cools the air in the water tank 20 by flowing water supplied from the tap water supply port 9 through the drying water supply pipe 38 to the upper surface in the drying process.

  As shown in FIG. 3, a blower 42 (circulation blower) is provided on the left side (right side as viewed from the back side) of the lower back of the water tank 20. The blower 42 includes a fan case 45, blades 46 accommodated in the fan case 45, and a fan motor 47 that rotationally drives the blades 46. The fan motor 47 is directly connected to the blade 46, and rotates the blade 46 by direct drive driving. The blower 42 sucks air that has passed through the heat exchange plate 41 and discharges the sucked air to the heater unit 40 in the blower duct 39.

  That is, in the drying process of the drum type laundry dryer, the air heated by the heater unit 40 flows into the drum 34 from the air blowing port 39a through the air blowing duct 39 and vaporizes the moisture of the laundry. The moist air containing a large amount of vaporized water is cooled by the heat exchange plate 41, and the moisture is condensed to become dry air. This dried air is reheated by the heater 40 in the air duct 39 via the air blowing fan 42 and is used for removing moisture from the laundry. The drying process proceeds by repeating these operations until the laundry is completely dried. Moreover, since the heater part 40, the heat exchange plate 41, and the air blower 42 are provided in the lower part of the water tank 20, in the washing process and the rinsing process, these members are submerged in the washing water and the rinsing water, and the yarn adhered to these members Debris and the like can be removed.

  Next, an ion wind supply unit that is a characteristic configuration of the drum type washing and drying machine of the present invention will be described with reference to FIGS. 4 is a schematic longitudinal sectional view of the drum type washing and drying machine as viewed from the right side, FIG. 5 is a schematic view of the upper part of the machine as viewed obliquely from above with the top plate removed, and FIG. 6 is a side view of the ion wind supply unit. FIG.

  As shown in FIGS. 4 and 5, the ion wind supply unit 60 includes an ion generator 61 that generates positive ions and negative ions by discharge, and a blower that blows positive ions and negative ions generated from the ion generator 61 ( (Blowing means for ion supply) 62 and the air for supplying positive ions and negative ions generated from the ion generator 61 to the air duct (circulation air passage) 39 through the cylindrical ion inlet hole 22a provided in the upper part of the water tank 20. A duct (ion supply air passage) 63.

The ion generator 61 is a device that generates positive ions and negative ions with respect to the air taken in by the blower 62. Specifically, for example, by applying an alternating high voltage between the electrodes, an ionization phenomenon due to discharge or the like occurs in the atmosphere, and positive ions and negative ions are generated. In this case, for example, as a H ⁺ positive ions produced (H ₂ O) _n, as the negative ions e.g. _{^{O 2 - (H 2 O)}} n is mainly generated.

These positive ions H ⁺ (H ₂ O) _n and negative ions O ₂ ⁻ (H ₂ O) _n react chemically to generate H ₂ O ₂ or .OH as an active species. Since H ₂ O ₂ or .OH exhibits extremely strong activity, it is known that they can surround and remove suspended particles in the air and suspended matter such as suspended sterilization. Here, .OH is a kind of active species and represents radical OH. Formation of H ₂ O ₂ or _.OH from H ⁺ (H ₂ O) _n and O ₂ ⁻ (H ₂ O) _m is represented by the following chemical formula.

H ⁺ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _m
→ OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ 2.OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  This OH acts on the C—C bond, C═C bond, C═O bond, etc. of the organic compound that is the source of the odor and decomposes to produce a deodorizing effect. Hereinafter, the decomposition action of a substance that causes a typical odor is shown by a chemical formula.

Reaction with acetic acid:
CH ₃ COOH + 8 · OH → 2CO ₂ + 6H ₂ O (4)
Reaction with acetaldehyde:
CH ₃ CHO + 10 · OH → 2CO ₂ + 7H ₂ O (5)
Reaction with benzene:
C ₆ H ₆ + 30 · OH → 6CO ₂ + 18H ₂ O (6)

  As shown in FIG. 6, the blower 62 includes a fan case 64, blades 65 accommodated in the fan case 64, and an ion supply fan motor 66 that rotationally drives the blades 65. The fan case 64 is an integrally molded product of resin. As shown in FIG. 5, a circular suction port 64a having a cross-shaped crosspiece is opened on the upper surface, and as shown in FIG. Is formed. As shown in FIG. 6, a check valve 67 is attached to the air outlet 64 b so that air does not flow back into the fan case 64. The suction port 64a is provided with a filter 68 so as to cover the crosspiece.

  The ion supply fan motor 66 is directly connected to the blade 65 and rotates the blade 65 by direct drive. The blower 62 sucks air through a heat dissipation opening (not shown) provided in the outer box 1 and discharges the sucked air to the blower duct 63.

  The ion generator 61 is attached to the rear surface of the upper surface of the fan case 64 from the suction port 64a, and the discharge part is located in the ventilation path from the suction port 64a to the blower port 64b. The fan case 64 is fixed to the suspension mounting portion 17 (see FIG. 2) and the upper right end portion of the outer box 1 with screws. Thereby, the ion generator 61 and the air blower 62 can be arrange | positioned using the dead space which can be carried out on the outer peripheral right upper side of the water tank 20 effectively.

  As shown in FIGS. 4 and 5, a cylindrical ion inlet hole 22 a for venting air is integrally provided at the upper left portion of the peripheral surface of the rear portion 22 of the water tank 20. When water is supplied into the drum 34 with the pressure inside the water tank 20 increased, there is a risk of backflow. To prevent this, an ion inlet hole 22a is provided to leak air pressure in the water tank 20. ing.

  The air duct 63 is a hard resin molded product formed in an upper and lower divided structure, and is created by fitting upper and lower parts together. As shown in FIG. 6, an inflow port 63 a facing forward is formed at one end of the air duct 63. The inlet 63 a of the air duct 63 is connected to the outlet 64 b of the fan case 64. As shown in FIG. 5, the body portion of the air duct 63 has a gently curved planar shape that extends from the right to the left on the outer peripheral surface of the rear portion 22 of the water tank 20. As shown in FIG. 6, an outlet 63 b facing downward is formed at the other end of the air duct 63. The outlet 63b of the air duct 63 is disposed so as to face (separate) the ion inlet hole 22a at the upper part of the water tank. Here, the distance between the outlet 63b of the air duct 63 and the ion inlet hole 22a in the upper part of the water tank is set to be about 17 mm in a normal state, and the ion inlet hole 22a is pushed up when the water tank 20 vibrates. It is set to the shortest distance at which positive ions and negative ions generated from the ion generator 61 can be efficiently supplied into the water tank 20 while avoiding the collision caused by the above. In addition, the ion inlet hole diameter of the outlet 63b of the air duct 63 is set to about 29 mm, and the hole diameter of the ion inlet hole 22a in the upper part of the water tank is set to about 23 mm, respectively. By making it larger than the hole diameter of the inlet hole 22a, it is designed to cope with an error in the position of the hole 22a when the water tank 20 is disposed.

  Around the outlet 63b of the air duct 63, a steam receiving portion 63c is integrally formed for making the steam sprayed from the ion inlet hole 22a to the outside of the water tank 20 into water droplets and dropping it outside the peripheral surface of the water tank 20. ing.

  FIG. 7 is a plan view of an example of an operation panel of the drum type washing and drying machine. The operation panel 7 is provided with a power-on key 72, a power-off key 73, a washing / drying switch key 74, and a start / pause key 75. The power-on key 72 and the power-off key 73 are keys for supplying / stopping power to the drum type washing / drying machine. The washing / drying switching key 74 is a key to be pressed when selecting whether to perform washing and dehydration or only drying clothes, that is, to select a washing course and a drying course. The start / pause key 75 is a key for instructing to start the operation of the drum type washer / dryer and to pause the operation in the middle.

  The operation panel 7 is provided with a course key 76 and a drying course key 77. The couskey 76 is a key that is pressed when washing and dehydration are performed and drying is not performed, that is, when a washing course is selected. The drying course key 77 is a key that is pressed to select a drying course when the drying course is selected or when a drying course is added to the washing course.

  For example, when the course key 76 is pressed, among the plurality of processing contents displayed in 3 rows and 2 columns above, the processing contents related to washing are sequentially switched and displayed according to the press. For example, the display is switched from top to bottom and from left to right. Specifically, when the course key 76 is pressed once, “Standard” lights up, and when the course key 76 is pressed once again, “Standard” turns off and “warm water” lights up, and the course key 76 is further turned on. When is pressed, the washing contents are sequentially selected such that “hot water” is turned off and “big” is turned on instead.

  Even when the drying course key 77 is pressed, the processing content related to washing and drying and the processing content related to drying can be sequentially selected.

  Further, a sterilization / deodorizing key 78 is provided on the operation panel 7. The disinfecting / deodorizing key 78 is a key that is operated when it is desired to deodorize and deodorize odors and the like adhering to the clothing although it is not necessary to wash the clothing. For example, if there is a garment in which the smell of cigarettes is worrisome, the garment is accommodated in the drum 34 and the sterilization / deodorizing key 78 is pressed. Is displayed → “30 minutes” is displayed → “_10 minutes” is displayed → “_30 minutes” is displayed. Here, the underbar “_” means that the drum 34 is rotated during the sterilization and deodorization operation. When the start / pause key 75 is pressed in a state where “10 minutes” or “30 minutes” is displayed, the drum 34 does not rotate for the displayed time, and air containing positive ions and negative ions is displayed. When the start / pause key 75 is pressed while “_10 minutes” or “_30 minutes” is displayed, the drum 34 rotates while the drum 34 is rotating, and positive ions and negatives are displayed. Air containing ions is supplied into the drum 34, and the sterilization / deodorization process of the clothing is performed as a process independent of washing and drying. That is, the sterilization / deodorization key 78 is a key for independently performing the processing when it is desired to deodorize / deodorize clothes that need not be washed. In this embodiment, the sterilization and deodorizing operation to be executed in a state in which “10 minutes” or “_10 minutes” is displayed is in a state in which “10 minutes course”, “30 minutes” or “_30 minutes” is displayed. The sterilization / deodorization operation to be performed is referred to as a “30 minute course”.

  The operation panel 7 is arranged with other keys and various indications indicating the driving situation. However, they are not directly related to the present invention, and the description thereof will be omitted.

  FIG. 8 is a control circuit block diagram of the drum-type washing and drying machine, and is a control block diagram showing only the components related to the operation that characterizes the present invention. The control circuit 8 (see FIG. 2) is provided with a control unit 81 composed of a CPU, a ROM, a RAM, and the like. Command signals from the power-on key 72, the start / pause key 75, the sterilization / deodorizing key 78, etc. provided on the operation panel 71 are given to the control unit 81. Further, detection signals from a thermistor 57 and a water level sensor 58 provided in the fan casing 45 (see FIG. 2) are also given to the control unit 81. The thermistor control unit 81 responds to a given command signal by the motor 36, the fan motor 47, the heater 44, the ion generator 61, the ion supply fan motor 66, the drying water supply valve 48, the drain valve 33, and the lock mechanism 49. Control the operation of

<10 minutes course>
9 is a flowchart showing an example of a 10-minute course of the sterilization and deodorizing operation performed by the control unit 81 shown in FIG. 8, and FIG. 10 is a flowchart showing an example of the heater ON / OFF switching control in step S113 of FIG. 11 is a flowchart showing an example of fan motor rotation speed switching control in step S114 of FIG. FIG. 12 shows the operation of the drum 34, the lock mechanism 49, the ion generator 61, the ion supply fan motor 66, the fan motor 47, the heater 44, the drying water supply valve 48, the drain valve 33, and the motor 36 at that time. It is a timing chart which shows. Next, a description will be given with reference to the timing chart of FIG. 12 mainly based on the flowcharts of FIGS.

  When the 10-minute course starts, the control unit 81 activates the lock mechanism 49 (step S100), determines the presence or absence of drum rotation (step S101), and displays an underscore “_” on the display unit 79. If so, the motor 36 is operated to slowly rotate the drum 34 forward (step S102).

  If the under bar “_” is not displayed on the display unit 79, the motor 36 is not operated. That is, the sterilization and deodorization operation is performed without rotating the drum 34. If sterilization and deodorization is performed without rotating the drum 34, it is effective for so-called delicate clothing that may be damaged or lost its shape.

  Next, the control unit 81 turns on the fan motor 47 (step S103) and simultaneously turns on the heater 44 (step S104). Thereby, the air in the drum 34 is circulated through the blower duct 39, and the air is heated by the heater 44. As will be described later, the fan motor 47 is switched between two large and small rotation speeds (3500 rpm, 1750 rpm) during operation for low power consumption, but the rotation speed during driving is “high” (3500 rpm). Set to number of revolutions.

  The ion generator 61 is also turned on (step S105), and at the same time, the ion supply fan motor 66 is turned on (step S106). As a result, positive ions and negative ions generated from the ion generator 61 pass through the air duct 63 into the space between the rear side of the drum 34 and the rear side of the water tank 20 from the ion inlet hole 22a on the upper left side of the water tank 20. Supplied. Since this space is under negative pressure due to the operation of the blower 42, the suction force even if the outlet 63b of the blower duct 63 and the ion inlet hole 22a of the water tank 20 are opposed to each other as described above. Therefore, positive ions and negative ions can be supplied efficiently. Thereafter, the ion generator 61 and the ion supply fan motor 66 are maintained in the ON state until the sterilization and deodorization operation is completed.

  Then, the drying water supply valve 48 is turned on (step S107). At this time, the drain valve 33 remains off. As a result, city water is collected in the space between the inner peripheral surface of the bottom of the water tank 20 and the outer peripheral surface of the drum 34, and the air heated by the heater 44 circulates to generate water vapor on the surface of the heat exchange plate 41. . Therefore, the clothes accommodated in the drum 34 are steamed with the heated water vapor, so that a soft finish can be obtained. Further, since it is known that the sterilization and deodorizing action of positive ions and negative ions increases as the humidity increases, the humidity in the drum 34 is increased to activate the action of positive ions and negative ions. In addition, water-soluble components out of odor components from clothes are dissolved in water vapor drifting in the drum 34, and the deodorizing effect is enhanced.

  In addition, since the air cannot be blown if the inside of the air duct 39 is blocked with water, the water level is monitored by the water level sensor 58 during the water supply so that the water is not accumulated more than necessary, and when the water level reaches a predetermined level (step S108). Then, the drying water supply valve 48 is turned off (step S109).

  When 3 minutes have elapsed from the start of water supply (step S110), the drain valve 33 is turned on (step S111), and the water supply valve for drying is turned on (step S112). Thereby, the accumulated water is drained out of the machine. Thereafter, the drain valve 33 is maintained in the ON state until the sterilization and deodorization operation is finished.

  Thereafter, the heater 44 is controlled to be turned on / off based on the temperature detected by the thermistor 57 (step S113). For example, as shown in FIG. 10, when the detected temperature of the thermistor 57 becomes 70 ° C. or higher (step S201), the heater 44 is turned off (step S202), and when the detected temperature of the thermistor 57 becomes 67 ° C. or lower (step S203). The heater 44 is turned on (step S204). As a result, low power consumption can be achieved and the temperature inside the drum can be maintained around 60 ° C.

  Further, the fan motor 47 is controlled so as to switch the rotational speed based on the on / off state of the heater 44 and the detection result of the thermistor 57 (step S114). For example, as shown in FIG. 11, when the heater 44 is off (step S301) and the temperature detected by the thermistor 57 is 70 ° C. or lower (step S302), the rotational speed of the fan motor 47 is set to “small” ( 1750 rpm), and when the heater 44 is on (step S301), the rotational speed of the fan motor 47 is set to “high” (3500 rpm) (step S304). Thereby, low power consumption and low noise are realized.

  In addition, if the drum 34 is rotated at the time of the sterilization and deodorization, the clothes accommodated in the drum 34 are agitated in the drum 34, so that the clothes are evenly exposed to positive ions and negative ions, and are sterilized. Deodorization efficiency is improved.

  On the other hand, in a stationary state of the drum 34, the clothes accommodated in the drum 34 do not move, and air containing positive ions and negative ions is supplied to the clothes, so that the clothes are sterilized and deodorized. And there is no possibility that the clothes will be damaged by the sterilization and deodorization, or that the clothing will be deformed.

  In step S115, when the start / pause key 75 is pressed, that is, when it is determined that 8 minutes have elapsed since the start of the sterilization / deodorization operation, the cool-down operation is performed. That is, the heater 44 is turned off (step S116), and the rotation speed of the fan motor 47 is set to “high” (step S117). Thereby, the inside of the drum 34 is rapidly cooled. In this embodiment, the ion generator 61 and the ion supply fan motor 66 are kept on even during the cool-down operation, but they may be turned off.

  In this 10-minute course, the sterilization and deodorization operation is performed for 10 minutes. When 10 minutes have elapsed, the end of the sterilization operation is determined in step S118, and the motor 36 is turned off (step S119). The fan motor 47 is turned off (step S120), the ion generator 61 is turned off (step S121), the ion supply fan motor 66 is turned off (step S122), and the drying water supply valve 48 is turned off (step S123). ), The drain valve 33 is turned off (step S124), the operation of the lock mechanism 49 is released (step S125), and the sterilization and deodorization operation is completed.

  In addition, since ozone is not used in the sterilization and deodorization operation, when the user opens the door 5 and takes out the clothes in the drum 34, the air in the drum 34 does not contain ozone, and the user is uncomfortable. It doesn't smell the ozone odor.

<30 minutes course>
FIG. 13 is a flowchart showing an example of a 30-minute course of the sterilization and deodorization operation performed by the control unit 81 shown in FIG. 8, and FIG. 14 shows the drum 34, the lock mechanism 49, the ion generator 61, and the ion supply fan at that time. 4 is a timing chart showing operations of a motor 66, a fan motor 47, a heater 44, a drying water supply valve 48, a drain valve 33, and a motor 36. Next, a description will be given with reference to the timing chart of FIG. 14 mainly based on the flowchart of FIG.

  When the 30-minute course starts, the control unit 81 activates the lock mechanism 49 (step S400), determines whether or not the drum is rotating (step S401), and displays an underscore “_” on the display unit 79. If so, the motor 36 is operated to slowly rotate the drum 34 forward (step S402).

  If the under bar “_” is not displayed on the display unit 79, the motor 36 is not operated. That is, the sterilization and deodorization operation is performed without rotating the drum 34. If sterilization and deodorization is performed without rotating the drum 34, it is effective for so-called delicate clothing that may be damaged or lost its shape.

  Next, the control unit 81 turns on the fan motor 47 (step S403) and simultaneously turns on the heater 44 (step S404). Thereby, the air in the drum 34 is circulated through the blower duct 39, and the air is heated by the heater 44. As will be described later, the fan motor 47 is switched between two large and small rotation speeds (3500 rpm, 1750 rpm) during operation for low power consumption, but the rotation speed during driving is “high” (3500 rpm). Set to number of revolutions.

  The ion generator 61 is also turned on (step S405), and at the same time, the ion supply fan motor 66 is turned on (step S406). Thereby, the positive ions and negative ions generated from the ion generator 61 pass through the air duct 63 and the space between the rear side outside the drum 34 and the rear side inside the water tank 20 from the ion inlet hole 22a on the left side of the water tank 20. To be supplied. Since this space is under negative pressure due to the operation of the blower 42, the suction force even if the outlet 63b of the blower duct 63 and the ion inlet hole 22a of the water tank 20 are opposed to each other as described above. Therefore, positive ions and negative ions can be supplied efficiently. Thereafter, the ion generator 61 and the ion supply fan motor 66 are maintained in the ON state until the sterilization and deodorization operation is completed.

  Then, the drying water supply valve 48 is turned on (step S407). At this time, the drain valve 33 remains off. As a result, city water is collected in the space between the inner peripheral surface of the bottom of the water tank 20 and the outer peripheral surface of the drum 34, and the air heated by the heater 44 circulates to generate water vapor on the surface of the heat exchange plate 41. . Therefore, the clothes accommodated in the drum 34 are steamed with the heated water vapor, so that a soft finish can be obtained. Further, since it is known that the sterilization and deodorizing action of positive ions and negative ions increases as the humidity increases, the humidity in the drum 34 is increased to activate the action of positive ions and negative ions. In addition, water-soluble components out of odor components from clothes are dissolved in water vapor drifting in the drum 34, and the deodorizing effect is enhanced.

  Since the air cannot be blown when the air duct 39 is blocked with water, the water level is monitored by the water level sensor 58 so that the water is not accumulated more than necessary. When the water level reaches a predetermined level (step S408), the air is dried. The water supply valve 48 is turned off (step S409).

  When 3 minutes have elapsed from the start of water supply (step S410), the drain valve 33 is turned on (step S411), and the water supply valve for drying is turned on (step S412). Thereby, the accumulated water is drained out of the machine.

  Thereafter, the heater 44 is controlled to be turned on / off based on the temperature detected by the thermistor 57 (step S413). For example, as shown in FIG. 10, when the detected temperature of the thermistor 57 becomes 65 ° C. or higher (step S201), the heater 44 is turned off (step S202), and when the detected temperature of the thermistor 57 becomes 55 ° C. or lower (step S203). The heater 44 is turned on (step S204). As a result, low power consumption can be achieved and the temperature inside the drum can be maintained around 60 ° C.

  Further, the fan motor 47 is controlled so as to switch the rotational speed based on the on / off state of the heater 44 and the detection result of the thermistor 57 (step S414). For example, as shown in FIG. 11, when the heater 44 is off (step S301) and the temperature detected by the thermistor 57 is 70 ° C. or lower (step S302), the rotational speed of the fan motor 47 is set to “small” ( 1750 rpm), and when the heater 44 is on (step S301), the rotational speed of the fan motor 47 is set to “high” (3500 rpm) (step S304). Thereby, low power consumption and low noise are realized.

  In addition, if the drum 34 is rotated at the time of the sterilization and deodorization, the clothes accommodated in the drum 34 are agitated in the drum 34, so that the clothes are evenly exposed to positive ions and negative ions, and are sterilized. Deodorization efficiency is improved.

  On the other hand, in a stationary state of the drum 34, the clothes accommodated in the drum 34 do not move, and air containing positive ions and negative ions is supplied to the clothes, so that the clothes are sterilized and deodorized. And there is no possibility that the clothes will be damaged by the sterilization and deodorization, or that the clothing will be deformed.

  In step S415, if the start / pause key 75 is pressed, that is, if it is determined that 10 minutes have passed since the start of the sterilization / deodorization operation, the drain valve 33 is turned off (step S416), and the heater 44 is turned off. Is turned on (step S417), and the rotation speed of the fan motor 47 is set to "high" (step S418). Thus, city water is again stored in the space between the inner peripheral surface of the bottom of the water tank 20 and the outer peripheral surface of the bottom of the drum 34, and the air heated by the heater 44 circulates so that water vapor is generated on the surface of the heat exchange plate 41. appear. That is, in the 30-minute course, the process of supplying water vapor into the drum 34 is performed twice with time, and the sterilization and deodorization of clothing can be performed more carefully than in the 10-minute course.

  In addition, since the air cannot be blown if the inside of the air duct 39 is blocked with water, the water level is monitored by the water level sensor 58 so that the water is not accumulated more than necessary, and when the water level reaches a predetermined level (step S419), the water for drying is used. The water supply valve 48 is turned off (step S420). In the timing chart of FIG. 14, the fact that the drying water supply valve 48 is not turned off in this step means that the predetermined water level has not been reached during the water supply, and the water level sensor 58 The water level is monitored by

  When 4 minutes have elapsed since the start of water supply (step S421), the drain valve 33 is turned on (step S422), and the drying water supply valve 48 is turned on (step S423). Thereby, the accumulated water is drained out of the machine. Thereafter, the drain valve 33 is maintained in the ON state until the sterilization and deodorization operation is finished.

  Thereafter, similarly to the above, the heater 44 is subjected to on / off switching control based on the temperature detected by the thermistor 57 (step S424). The fan motor 47 is also controlled to switch the rotation speed based on the on / off state of the heater 44 and the detection result of the thermistor 57 (step S425).

  In step S426, when the start / pause key 75 is pressed, that is, when it is determined that 28 minutes have elapsed from the start of the sterilization / deodorization operation, the cool-down operation is performed. That is, the heater 44 is turned off (step S427), and the rotation speed of the fan motor 47 is set to “high” (step S428). Thereby, the inside of the drum 34 is rapidly cooled. In this embodiment, the ion generator 61 and the ion supply fan motor 66 are kept on even during the cool-down operation, but they may be turned off.

  In this 30 minute course, the sterilization and deodorization operation is performed for 30 minutes. When 30 minutes have elapsed, the end of the sterilization operation is determined in step S429, and the motor 36 is turned off (step S430). The fan motor 47 is turned off (step S431), the ion generator 61 is turned off (step S432), the ion supply fan motor 66 is turned off (step S433), and the drying water supply valve 48 is turned off (step S434). ), The drain valve 33 is turned off (step S435), the operation of the lock mechanism 49 is released (step S436), and the sterilization and deodorizing operation is completed.

  In both the 10-minute course and the 30-minute course, when the start / pause key 75 is pressed during the sterilization and deodorization operation, the thermistor 57 detects the temperature. At this time, if the temperature detected by the thermistor 57 is equal to or lower than a predetermined door opening prohibition temperature (for example, 50 ° C.), all the elements such as the heater 42, the ion generator 61, and the fan motor 47 are turned off. On the other hand, if the detected temperature of the thermistor 57 exceeds the predetermined door opening prohibition temperature, all elements other than the fan motor 47 such as the heater 42 and the ion generator 61 are turned off while the lock mechanism 49 is kept on. The disinfecting and deodorizing operation is stopped. Then, the rotation speed of the fan motor 47 is set to “large”, and a large amount of air is blown into the drum 34 for cooling. After 30 seconds, when the thermistor 57 detects a temperature below the predetermined door opening prohibition temperature, the on state of the lock mechanism 49 is released. When the detected temperature of the thermistor 57 still exceeds the door opening prohibition temperature, a large amount of air is blown into the drum 34 to be cooled while the rotation speed of the fan motor 47 is maintained at “large”.

The deodorizing effect by the sterilization and deodorizing operation of the drum type washing and drying machine according to the embodiment of the present invention was verified by the following examples.
<Odor adhesion method>
The sample was hung on a 250 L acrylic box, and the smell of one cigarette was attached (attachment time: 30 minutes (15 minutes combustion, 15 minutes smoke)).
<Processing method>
As described above in a sample with a smell of tobacco, O ₂ as positive ions ^{_{H + (H 2 O) n}} , as a negative ion ^- (H ₂ O) _n is using an ion generating device is mainly generated The 10-minute course and the 30-minute course were sterilized and deodorized (respectively referred to as Examples 1 and 2).
<Sensory test>
The sensory test by the following 6-step odor intensity | strength display method was implemented with respect to the sample which performed said process, and the unprocessed sample with which the smell of tobacco was attached (comparative example).
0: Odorless 1: Smell that can be finally detected 2: Know what odor is 3: Smell that can be easily detected 4: Strong odor 5: Strong odor

  Since sensory evaluation has a large error in a single sample, the average value of a plurality of samples was adopted. The results are shown in Table 1.

  As shown in Table 1, the average odor intensity decreased by 1.0 in the sample (Example 1) subjected to the 10-minute course compared to the sample (Comparative Example) in which nothing was performed, and the sample subjected to the 30-minute course ( In Example 2), 2.2 was reduced compared to the comparative example, and a significant deodorizing effect was confirmed in any course. From this, it can be seen that a sufficient and sufficient deodorizing effect can be obtained if a 10-minute course is applied to clothes that are not so strong, and a 30-minute course is applied to clothes that have a strong smell.

  According to the embodiment of the present invention, since the outlet 63b of the air duct 63 is separated from the ion inlet hole 22a provided in the upper part of the water tank 20, the detergent foam is formed in the upper part of the water tank 20 in the washing process and the rinsing process. Even if water leaks out of the water tank 20 from the ion inlet hole 22a, or water vapor is generated from the clothes in the drum 34 in the drying process and is ejected from the ion inlet hole 22a above the water tank 20, the detergent bubbles or water vapor Is prevented from entering the air duct 63 (ion supply air passage). Therefore, positive ions and negative ions are stably generated from the ion generator 61, and the air duct 39 (circulation air passage) that circulates the air in the drum 34 regardless of the vibration of the water tank 20 or the drum 34 or the oscillation. By supplying it stably, odors and germs generated from clothing can be removed efficiently.

  In addition, you may make it discharge | release some positive ions and negative ions which generate | occur | produce from the ion generator 61 to the exterior of the outer case 1 during implementation of disinfection deodorizing operation. In this way, sterilization and deodorization of the space outside the outer box 1 can be performed, and a product with higher added value can be provided.

  In the embodiment of the present invention, positive ions and negative ions are generated from the ion generator 61. However, ions that can be sterilized and deodorized by either positive ions or negative ions alone are generated. A generator may be mounted.

These are the schematics which looked at the drum type washing-drying machine which concerns on embodiment of this invention from the diagonally upward appearance. These are the schematic longitudinal cross-sectional views which cut the drum type washing-drying machine same as the above from the left end vicinity of FIG. 1, and were seen from the right side. These are the schematic longitudinal cross-sectional views which show the structure inside the water tank seen from the axial direction (direction parallel to CL of FIG. 2) of the cylindrical shape of the water tank. FIG. 2 is a schematic longitudinal sectional view of the drum type washing / drying machine as viewed from the right side by cutting near the right end of FIG. 1. These are the schematic views which removed the top plate of the said drum type washing-drying machine, and looked at the upper part in the machine from diagonally upward. These are the schematic sectional drawings which looked at the ion wind supply unit from the side. These are top views of an example of the operation panel of a drum type washing and drying machine. These are control circuit block diagrams of a drum-type washer / dryer. These are the flowcharts showing an example of the 10 minute course of disinfection deodorizing driving | operation. These are flowcharts which show an example of heater ON / OFF switching control. These are flowcharts which show an example of fan motor rotation speed switching control. These are timing charts of an example of the control operation of the 10-minute course of the sterilization and deodorization operation. These are the flowcharts showing an example of the 30 minute course of disinfection deodorizing driving | operation. These are timing charts of an example of the control operation of the 30-minute course of the sterilization and deodorization operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer box 2 Top plate 20 Water tank 22a Ion introduction hole (hole for air venting)
34 Drum 39 Air duct (circulation air passage)
40 Heater (heating means)
42 Blower (circulation fan)
60 Ion wind supply unit 61 Ion generator 62 Blower (Blowing means for ion supply)
60 Ion wind supply unit 61 Ion generator 62 Blower (circulation fan)
63 Air duct (ion supply air passage)
63a Inlet (one end)
63b Outlet (other end)
63c Steam receiving portion 64 Fan casing 64a Suction port 64b Outlet port 65 Feather 66 Fan motor 67 Check valve 68 Filter

Claims (9)

A tank,
A drum rotatably disposed in the water tank for washing, dehydrating and drying the housed clothes;
A circulation air passage for taking out the air in the drum from one end and returning it from the other end into the drum;
A heating means provided in the circulation air passage, for heating air circulating in the circulation air passage;
In a drum-type washing and drying machine comprising:
An ion generator that is disposed above the water tank and generates ions having a sterilizing and deodorizing action by discharge;
A blowing means for supplying ions for blowing ions generated from the ion generator;
An ion supply air passage for supplying ions generated from the ion generator to an ion inlet hole provided in the upper part of the water tank;
With
One end of the ion-supplying air path is connected to the outlet of the blower means, the other end is opposed spaced toward the ion feed-in hole as an ion outlet, the diameter of the ion outlet is fed the ion A steam receiving part for making the steam ejected from the ion feed hole to the outside of the water tank into water droplets and dropping it on the outer surface of the water tank is provided around the other end of the ion supply air passage . A drum-type washing and drying machine characterized by that.   The drum-type dry washing machine according to claim 1, wherein the ion generator generates positive ions and negative ions.   The drum-type dry washing machine according to claim 2, wherein the ion introduction hole communicates with a space inside the back surface of the water tank and outside the back surface of the drum.   4. A circulation blowing means for forcibly circulating the air in the circulation air passage is provided outside the rear surface of the water tank, and the ion inlet hole is located vertically above the circulation blowing means. The drum-type dry washing machine as described in 1.   The drum-type drying washing machine according to any one of claims 1 to 4, wherein the circulation air passage is formed in a space below the inner peripheral surface of the water tank and below the outer peripheral surface of the drum.   6. The drum type washing and drying machine according to claim 5, wherein the ion supply air passage is a duct made of hard resin.   The drum type washing / drying machine according to any one of claims 1 to 6, wherein a check valve is provided at an outlet of the air blowing means.   The drum-type washing / drying machine according to any one of claims 1 to 7, wherein a filter is provided at a suction port of the blowing means. The drum type washing and drying machine according to any one of claims 1 to 8 , wherein the ion introduction hole is a hole for venting the water tank.

Images