JP5270490B2 - Drying unit and washing dryer - Google Patents

Description

  The present invention relates to a drying unit for a laundry dryer and a laundry dryer provided with the same.

  Conventionally, it is equipped with an ion generator that generates ions that have sterilization and deodorizing action, and supplies ions that have sterilization and deodorization action to clothes in a dehydration tank (drum) that contains clothes. There has been proposed a washing and drying machine to which a function capable of deodorizing attached odors and sterilizing various germs is added (see Patent Document 1). Unlike ozone, these ions are odorless and harmless to the human body, and it has been confirmed that they are effective in removing odors and fungi such as mold that have grown on (attached to) walls.

  In recent years, with an increasing awareness of health and cleanliness, an increasing number of users desire to remove moisture odors and fungi in sanitary spaces where washing and drying machines are installed. Here, a washroom adjacent to the bathroom is the most common sanitary space where the washing and drying machine is installed. The washroom space is adjacent to the bathroom, and has a small floor area compared to the living room or living room, so it has a lot of moisture and is susceptible to odors and black mold. It is in.

  In addition, when the laundry dryer is not in operation, it is generally used as a container for dirty laundry that has been undressed before washing, and odors are generated from the laundry placed in the laundry tub, creating a sanitary space. There was also a problem of fullness.

JP 2009-66217 A

  However, in the washing and drying machine of the above-mentioned Patent Document 1, it is intended for the sterilization / deodorization effect of clothes and the like housed in the dehydration tank, and does not actively release ions outside the machine. No effect can be expected to remove mold in the bathroom. At present, there is a problem of frequent cleaning with chlorinated chemicals to remove mold, and there is a problem that the irritating odor of chlorinated chemicals and the burden of domestic work increase.

  The applicant has commercialized an ion generator that releases ions into the space and can suppress odors and molds. However, as described above, since the washroom is a narrow space, it is not possible to leave the ion generator stationary. It is difficult due to restrictions. In addition, adding a structure equivalent to such an ion generator to a washing / drying machine not only significantly increases the cost, but the casing becomes bulky more than necessary, and is installed in a small washroom in a small space. It's not realistic because you can't.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to construct an external ion release mechanism in a low cost and compact manner.

  In order to achieve the above object, the present invention provides a heater and a centrifugal fan in a blower box that is disposed in a washing and drying machine and has an air inlet and an air outlet. A drying unit that heats the air flowing through the heater and sends it into the dehydration tank. The drying unit is attached to the blower box and has ions having a sterilizing and deodorizing action on the air flowing through the flow path. An ion generator to be generated, a vent provided in the blower box and opening in a flow path on the downstream side of the ion generator, and a pivot provided in the blower box to open and close the vent A flow path around the centrifugal fan is formed in an arc shape gradually widening in the rotation direction of the centrifugal fan, and the ion generation is performed in a wide downstream portion of the circular arc flow path. Vessel, vent, and damper It is characterized in that arranged.

  According to this configuration, the ion generating means (ion generator) of the off-air ion release mechanism, the exhaust path branching means (vent hole) are provided in the wide downstream portion of the arc-shaped passage that easily secures the space for arranging additional parts. ) And exhaust path switching means (damper) are concentrated. Further, the air blowing means of the external ion release mechanism can also be used as the air blowing means (air blowing box, centrifugal fan) already installed in the drying unit. Therefore, most of the out-of-machine ion release mechanism can be integrated into the drying unit. The centralization can be handled with only a slight change in the mold of the blower box, and the changes to the overall shape and size of the drying unit are minimal. Can do.

  In the drying unit of the present invention, in the above configuration, the damper has a cut surface along the curvature of the outer periphery of the centrifugal fan, and is arranged in an orientation in which the cut surface is close to the outer periphery of the centrifugal fan. It is characterized by that. According to this structure, a damper can be arrange | positioned in the outer periphery vicinity of a centrifugal fan, without preventing rotation of a centrifugal fan.

  Further, in the drying unit of the present invention, the damper closes the vent and closes the exhaust path to the dehydration tank by opening the vent and opening the exhaust path to the dehydration tank. A second posture and a third posture located between the first posture and the second posture can be taken.

  According to this configuration, when the damper is in the first posture, an exhaust path to the dehydration tank is selected, and a mode for releasing ions into the dehydration tank can be realized. In addition, when the damper is in the second posture, an exhaust path that leads to the outside of the machine via the vent is selected, and a mode for releasing ions to the space outside the machine can be realized. Furthermore, when the damper is in the third posture, it is possible to realize a mode in which ions are released into the dewatering tank and simultaneously ions are released into the space outside the apparatus.

  In the drying unit according to the aspect of the invention, in the configuration described above, the second posture is a rotation angle within 90 ° with respect to the first posture, and the outlet flow velocity of the airflow passing through the vent is maximum. It is characterized by being set to an angle. According to this configuration, the air flow rate including the ions released into the space outside the apparatus is maximized, and the ions can be distributed far away.

  Further, the washing / drying machine of the present invention is characterized in that the ion generated from the ion generator can be discharged to a space outside the machine through the vent hole by including the drying unit having the above-described configuration. According to this configuration, it is possible to provide a washing / drying machine having an external ion release mechanism at low cost and in a compact manner.

  According to the present invention, the washing / drying machine having the above-described configuration includes an air outlet pipe connected to the vent hole and having an air outlet facing a space outside the machine. According to this configuration, the structure of the exhaust path leading to the outside of the out-of-machine ion release mechanism is simplified, which can contribute to cost reduction and downsizing.

  According to the drying unit and the washing / drying machine of the present invention, the ion generating means (ion generator) of the external ion release mechanism is provided in the downstream portion where the arcuate passage is easy to secure the space for arranging additional parts, Exhaust path branching means (vent holes) and exhaust path switching means (damper) are arranged in a concentrated manner. Further, the air blowing means of the external ion release mechanism can also be used as the air blowing means (air blowing box, centrifugal fan) already installed in the drying unit. Therefore, most of the out-of-machine ion release mechanism can be integrated into the drying unit. The centralization can be handled with only a slight change in the mold of the blower box, and the changes to the overall shape and size of the drying unit are minimal. Can do.

The perspective view which shows the washing-drying machine of one embodiment of this invention from the front diagonally upper viewpoint Schematic longitudinal sectional view showing the washer / dryer from a lateral perspective It is a schematic longitudinal cross-sectional view which shows the structure of the principal part periphery of the drying unit periphery of the said washing-drying machine from a side viewpoint, in-bath ion blowing operation (a), out-of-machine ion blowing operation (b), in-bath and outside ion What is shown together with the flow direction of the ion wind in the air blowing operation (c). It is a general | schematic longitudinal cross-section which shows the structure of the principal part periphery of the drying unit periphery of the said washing-drying machine from a forward viewpoint, and is an ion blowing operation in a tank (a), an ion blowing operation outside a tank (b), an ion blowing operation in a tank and an outside machine What is shown together with the flow direction of ion wind in (c) It is a perspective view which shows a drying unit from the back diagonally lower viewpoint, and shows a ventilation box partially cut away Cross section showing the drying unit from below Bottom view of ion generator Detailed longitudinal sectional view showing the structure of the main part around the outlet of the washing and drying machine from a lateral viewpoint These are the perspective views which show the outer case top plate of a washing-drying machine from the front diagonal perspective, and show the state (a) which laid the nozzle cover, and the state (b) which raised the nozzle cover The principal part enlarged view of Fig.9 (a)

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a perspective view showing a washer / dryer according to an embodiment of the present invention from a front oblique upper perspective. FIG. 2 is a schematic longitudinal sectional view showing the same washing and drying machine from a lateral viewpoint. The washing / drying machine having the washing function shown in FIGS. 1 and 2 has a left side in front and a right side in FIG. The washing / drying machine is a fully automatic type and includes an outer box 10 made of metal or synthetic resin. The outer box 10 is formed in a substantially rectangular parallelepiped shape, and its upper and lower sides are opened. A synthetic resin upper surface plate 11 on which an operation unit 90 or the like is mounted is fixed to the upper open portion of the outer box 10 by a male screw. An annular support plate 12 that supports the blowing means 70 is provided. The support plate 12 is provided with a through hole 13 for introducing the air in the outer box 10 into the blowing means. The top plate 11 constitutes the top plate of the outer box 10.

  On the back side of the washing and drying machine, a synthetic resin back panel 14 is fixed to the outer box 10 or the upper surface plate 11 by male screws, and the upper lid 15 is movable between the back panel 14 and the upper surface plate 11. It is arranged. The back panel 14 constitutes the top plate of the outer box 10.

  A base 16 having a rectangular shape made of synthetic resin is fixed to the lower open portion of the outer box 10 by a male screw. Legs 16 a and 16 b for supporting the outer box 10 on the floor are provided at the four corners of the base 16. The front leg 16 a is an adjustment leg whose height is variable for leveling, and the rear leg 16 b is a fixed leg integrally formed with the base 16.

  The top plate 11 is provided with a laundry input port 11a for loading the laundry into the washing / drying machine, and an upper lid 15 for opening and closing the laundry input port 11a is formed at the front end of the back panel 14. In the closed state shown in the figure, the upper lid 15 covers the laundry input port 11a from above. Inside the outer box 10, an outer water tank 20 and an inner dewatering tank 30 are arranged.

  The water tank 20 is suspended and supported by the support plate 12 by a plurality of suspension members 21 so as to be swingable in a horizontal plane. Further, the dewatering tank 30 is disposed concentrically with the water tank 20 inside the water tank 20 and also serves as a washing tank. Both the water tank 20 and the dehydration tank 30 are in the shape of a cylindrical cup with an upper opening, and each axis is in the vertical direction.

  The dewatering tank 30 has a tapered peripheral wall that gradually spreads upward. Except for the plurality of dewatering holes 31 arranged in an annular shape on the uppermost portion of the peripheral wall, no opening for allowing liquid to pass is formed, and the dewatering tank 30 is a so-called “no hole” type. . An annular balancer 32 is attached to the edge of the upper open portion of the dewatering tank 30. The balancer 32 functions to suppress vibration when the dewatering tank 30 is rotated at a high speed for dewatering the laundry. On the inner bottom surface of the dewatering tank 30, a stirring blade 33 for causing a flow of washing water or rinsing water in the tank is disposed.

  A flange portion 22 extends inwardly at the upper end portion of the water tank 20, and an inner lid 24 having an exhaust filter 23 is rotatably attached to the flange portion 22 by a hinge 24a. The inner lid 24 prevents laundry and water from jumping out of the dehydrating tank 30 during washing, rinsing, and dehydration.

  A drive unit 40 is attached to the lower part of the water tank 20. The drive unit 40 includes a drive motor 41, a belt transmission mechanism 42 that transmits output rotation of the drive motor 41, and a clutch / brake mechanism 43, and a cylindrical dewatering shaft 44 and a stirring blade shaft 45 from the center thereof. And protrude upwards.

  The dewatering shaft 44 and the stirring blade shaft 45 have a double shaft structure in which the dewatering shaft 44 is disposed outside and the stirring blade shaft 45 is disposed inside. The dehydrating shaft 44 enters the water tank 20 from below to above, and is connected to the dehydrating tank 30 to support the dehydrating tank 30. The stirring blade shaft 45 penetrates the water tank 20 from below to enter the dehydration tank 30 and is connected to the stirring blade 33 to support the stirring blade 33. The stirring blade 33 rotates at 55 to 300 rpm and performs washing or rinsing. At the time of dehydration, it is rotated at 0 to 1000 rpm together with the dehydration tank 30 to perform dehydration. Seal members for preventing water leakage are disposed between the dewatering shaft 44 and the water tank 20 and between the dewatering shaft 44 and the stirring blade shaft 45, respectively.

  There is a space between the support plate 12 and the back panel 14, and a water supply valve (not shown) that opens and closes electromagnetically is disposed in this space. A water supply hose for supplying tap water such as tap water is connected to the connection pipe 50 that is connected to the water supply valve and penetrates the back panel 14 vertically and protrudes upward. The water supply valve is connected to a container-like water supply port disposed at a position facing the dehydration tank 30.

  A drain hose 60 for draining the water in the water tank 20 and the dehydration tank 30 to the outside of the outer box 10 is attached to the bottom of the water tank 20. Water flows into the drain hose 60 from a drain outlet 61 that communicates with the bottoms of the water tank 20 and the dewatering tank 30. The water that flows out from the dehydration tank 30 during dehydration is drained from the drain hose 60 through a drain pipe (not shown).

  The dewatering tank 30 is provided with four drain holes 62 on the circumference, and each drain hole 62 introduces water in the dewater tank 30 from a drain port 61 to a drain valve 63 that electromagnetically opens and closes.

  With the above-described configuration, when the rotary blade 33 rotates, the water in the dewatering tank 30 is stopped by the drain valve 63 and stored in the dewatering tank 30. When performing dehydration, the drain valve 63 is opened, and the water in the dehydration tank 30 is drained to the outside. At this time, the dehydrating shaft 44, the stirring blade shaft 45, and the dewatering tank 30 are rotated by the drive motor 41. However, the dehydrating shaft 44 and the stirring blade shaft 45 are freely rotatable and maintain a watertight structure.

  A control circuit (control means) 51 is disposed on the front side of the outer box 10. The control circuit 51 is disposed on the lower side of the upper surface plate 11, receives an operation command from the user through the operation unit 90 provided on the upper surface of the upper surface plate 11, and receives the drive unit 40, the water supply valve and the drain valve 63. An operation command is issued. Further, the control circuit 51 issues a display command signal to the operation / display unit.

  FIG. 3 is a schematic longitudinal sectional view showing the configuration of the main part around the drying unit of the washing / drying machine from a side view, and FIG. 4 shows the configuration of the main part around the drying unit of the same washing / drying machine from the front viewpoint. It is a general | schematic longitudinal cross-section. As shown in FIGS. 3 and 4, in the space between the support plate 12 and the back panel 14 of the outer box 10, a drying unit K, a filter 100 as a foreign matter removing means, and a foreign matter storage box 90 are provided. It has been.

  The drying unit K includes a blowing unit 70 and a heater 80 as a heating unit, and heats the air flowing through the flow path by driving the blowing unit 70 with the heater 80 and sends the air into the dehydrating tank 30. It is composed of. The filter 100 as the foreign matter removing means prevents foreign matter such as dust from entering the air blowing box 71 from the air inlet 71a, and the foreign matter storage box 90 stores foreign matter removed by the filter 100. The filter 100 is attached to the foreign matter storage box 90, and the foreign matter storage box 90 is arranged in the air intake path of the blowing means 70.

  The blower means 70 includes a blower box 71 having an intake port 71a and an exhaust port 71b, and a blower fan 73 that is driven by a fan motor 72 and is disposed in the blower box 71 so that the rotation shaft is vertically arranged. . In the present embodiment, a centrifugal fan (for example, a sirocco fan) that sucks in the axial direction from the lower surface and supplies the air in the tangential direction of the outer periphery is used as the blower fan 73.

  The intake port 71 a communicates with the through hole 13 provided in the support plate 12 and the open portion 17 provided on the back surface of the outer box 10. A heater 80 as a heating means for heating the air blown by the blower fan 73 is disposed in the flow path in the duct 71c. Further, the other end of the bellows tube 74 having one end facing the dehydrating tank 30 is connected to the exhaust port 71b at the tip of the duct 71c. One end of the bellows tube 74 is fitted into a fitting hole provided in the flange portion 22. The duct 71c and the bellows tube 74 constitute an exhaust path (blower path) leading to the dehydration tank 30.

  FIG. 5 is a perspective view showing the drying unit obliquely from the lower rear, and is a view showing the blower box partially cut away. As shown in FIG. 5, the blower box 71 includes a cylindrical portion 71d that is opened downward, and a duct 71c that is continuous to one side in the circumferential direction of the cylindrical portion 71d. The opening part on the lower side of the cylindrical part 71d is an intake port 71a, supports the fan motor 72 outside the upper wall, and is spaced apart above the support plate 12. The intake port 71a faces the support plate 12 doing. The exhaust port 71b opens on the lower surface of the tip of the duct 71c.

  FIG. 6 is a cross-sectional view showing the drying unit from a lower viewpoint. As shown in FIG. 6, the outer periphery of the cylindrical portion 71d of the blower box 71 is not a perfect circle, but has a spiral shape in which the distance from the center gradually increases. As a result, an arcuate flow path 71e that gradually increases in the rotation direction of the blower fan 73 is formed around the blower fan 73 in the cylindrical portion 71d. The wide downstream portion of the arcuate flow path 71e is a place where it is easy to secure the space for arranging additional parts. At this location, an ion generator 75 as ion generating means, a vent 71f as exhaust path (air blowing path) branching means, and a damper 76 as exhaust path (air blowing path) switching means are arranged in a concentrated manner. As will be described later, a blow pipe 81 having a blow outlet 81a facing the outside of the machine is fitted and connected to the vent 71f.

  Blowing means 70 (blower box 71, blower fan 73, fan motor 72), ion generating means (ion generator 75), exhaust path switching means (damper 76, damper control motor 77), exhaust path branching means (vent hole 71f) ), The exhaust path leading to the blower outlet 81a (the blower path leading to the outside of the machine) (the blowout pipe 81), and the blower outlet 81a constitute an external ion release mechanism.

  In the present embodiment, the ion generating means, the exhaust path switching means, the exhaust path of the external ion release mechanism are provided in the wide downstream portion of the arcuate flow path 71e of the air blowing box 71 that is easy to secure the arrangement space for the additional parts. The branching means are concentrated and arranged. Further, the air blowing means of the external ion release mechanism can also be used as the air blowing means 70 already installed in the drying unit K. Therefore, most of the out-of-machine ion release mechanism can be integrated into the drying unit K. The unification can be dealt with only by a slight change in the mold of the blower box 71, and the change to the overall shape and size of the drying unit K is also minimal. can do.

  FIG. 7 is a bottom view of the ion generator. As shown in FIG. 7, the ion generator 75 supplies a voltage to two ion generators 751 and 752 and ion generators 751 and 752 that are arranged separately and separated by a distance that can ensure insulation. A power supply unit (not shown), and ion generators 751 and 752 and a box-shaped holding body 753 for holding the power supply unit are provided, and the power supply unit supplies a voltage to the ion generation units 751 and 752 to thereby generate the ion generation unit. 751 and 752 are configured to corona discharge and generate ions. The principle of generation of positive ions and negative ions is as described above.

  The ion generating portions 751 and 752 have discharge electrode convex portions 751a and 752a having a sharp shape, and induction electrode rings 751b and 752b surrounding the discharge electrode convex portions 751a and 752a, and the induction electrode rings 751b and 752b are respectively provided. Discharge electrode convex portions 751a and 752a are arranged at the center, and one ion generation portion 751 generates positive ions and the other ion generation portion 752 generates negative ions.

A positive voltage is applied to the positive ion generator 751, and water molecules in the air are electrically decomposed in a plasma region due to discharge, and mainly hydrogen ions H ⁺ are generated. Then, water molecules in the air are aggregated around the generated hydrogen ions, and stable charge positive cluster ions H ⁺ (H ₂ O) _m are formed.

A negative voltage is applied to the negative ion generator 752, and oxygen molecules in the air are electrically decomposed in a plasma region due to discharge, and mainly oxygen ions O ₂ ⁻ are generated. Then, water molecules in the air aggregate around the generated oxygen ions to form cluster ions O ₂ ⁻ (H ₂ O) _n having stable negative charges. Here, m and n are arbitrary integers.

  In the present specification, the term “plus ion” means a positive cluster ion, and the term “minus ion” means a negative cluster ion. The generation of positive and negative cluster ions has been confirmed by time-of-flight mass spectrometry.

When positive ions and negative ions are released into the air at the same time, they aggregate on the surface of microorganisms such as bacteria, molds and viruses and surround them. And, instantaneously, positive ions and negative ions combine to aggregate [· OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide), which are highly active species, on the surface of microorganisms. It is produced and decomposes the protein on the surface of the microorganism by chemical reaction to suppress its action. The hydroxyl radical and hydrogen peroxide generated as described above also have an action of decomposing odor components.

  As shown in FIG. 5, through holes 71g corresponding to the ion generating portions 751 and 752 are formed in the peripheral portion of the upper wall of the cylindrical portion 71d of the blower box 71, and the positioning protrusions 71h and the engaging protrusions are formed around the through holes 71g. A pawl 71j is projected. The ion generator 75 is attached to the blower box 71 by fitting the holding body 753 inside the positioning protrusion 71 h and engaging the locking claw 71 j with the locking step 753 a on the side surface of the holding body 753. At this time, the ion generating parts 751 and 752 come to face the arcuate flow path 71e (see FIG. 6) through the through hole 71g.

  That is, the ion generator 75 is disposed in the upper part of the arcuate flow path 71e so that the ion generators 751, 752 (discharge regions) face downward. Thereby, even if there is overflow or splashing for washing from the upper side or side of the drying unit K, the discharge region of the ion generator 75 does not get wet, so that ions can be generated stably.

  As shown in FIG. 6, the ion generator 75 has a positive ion generator 751 and a wide downstream portion of the arcuate flow path 71e where it is easy to secure an installation space for additional parts and the air flow velocity is high. The negative ion generator 752 is arranged such that the distances from the rotation center of the blower fan 73 are different from each other. More specifically, the distance L1 from the rotation center of the blower fan 73 of the positive ion generator 751 arranged on the upstream side of the arcuate passage 71e is short, and is arranged on the downstream side of the arcuate passage 71e. The negative ion generator 752 has an orientation that is longer than the distance L2 from the rotation center of the blower fan 73.

  Accordingly, the positive ions and the negative ions are generated with the tracks shifted in the arcuate flow path 71e. In addition, the distance from the rotation center of the blower fan 73 is such that the upstream positive ion generation part 751 is short and the downstream negative ion generation part 752 is long, so that the arcuate flow path 71e gradually increases in width. It is possible to arrange the ion generator 75 along the space. Therefore, while the ion generator 75 is disposed in the drying unit K in a space-saving manner, it is possible to suppress the positive and negative ions from being neutralized and disappear, and to efficiently carry the ions on a fast air flow. .

  As shown in FIG. 5, the vent 71 f is provided as a cylindrical port that protrudes upward from the upper wall of the blower box 71. The vent hole 71f is open to the flow path on the downstream side of the ion generator 75. A blower pipe 81 having a blower outlet 81a facing the space outside the machine is fitted and connected to the vent hole 71f. The blow-out pipe 81 constitutes an exhaust path (blower path) leading to the outside of the machine. That is, the vent hole 71f constitutes an exhaust path branching unit that branches an exhaust path to the dehydration tank 30 and an exhaust path to the outside of the machine. The cross-sectional area of the flow path (exhaust path leading to the dehydrating tank 30) in the duct 71c is set to be larger than the cross-sectional area of the blowing pipe 81 (exhaust path leading to the outside of the machine). The bottom surface of the flow path in the duct 71c has a slope that decreases from directly below the vent hole 71f toward the exhaust port 71b.

  The damper 76 opens and closes the vent hole 71f. As shown in FIG. 5, the damper 76 is driven by a damper control motor 77 supported on the outer side of the peripheral wall of the cylindrical portion 71d. It is provided so as to be rotatable within a predetermined angle range. In the present embodiment, a stepping motor is preferably used as the damper control motor 77. The damper 76 and the damper control motor 77 constitute an exhaust path switching means for switching between an exhaust path leading to the dewatering tank 30 and an exhaust path leading to the outside of the machine.

  A groove 71k corresponding to the shape of the damper 76 is formed on the upper wall of the cylindrical portion 71d of the blow box 71 so that the vent hole 71f is included in the region of the groove 71k. At the position where the damper 76 closes the vent hole 71f, the damper 76 is accommodated in the groove 71k, so that no obstruction obstructs the flow in the arcuate flow path 71e, and the vent hole 71f is securely closed. I am doing so.

  The damper 76 has a cut surface 76 a along the curvature of the outer periphery of the blower fan 73 on one side, and is arranged in an orientation in which the cut surface 76 a is close to the outer periphery of the blower fan 73. Thereby, the damper 76 can be arrange | positioned in the outer periphery vicinity of the ventilation fan 73, without preventing rotation of the ventilation fan 73, and contributes to space saving.

  In addition, the damper 76 closes the vent 71f as shown in FIG. 4A and opens the exhaust passage leading to the dewatering tank 30, and opens the vent 71f as shown in FIG. 4B. For controlling the damper so as to be able to take a second posture for closing the exhaust passage leading to the dehydration tank 30 and a third posture located between the first posture and the second posture as shown in FIG. The rotation angle is controlled by the motor 77.

  The second posture in FIG. 4B is a rotation angle within 90 ° with respect to the first posture in FIG. 4A, and the angle at which the outlet flow velocity of the airflow passing through the vent hole 71f is maximized. Is set to The angle differs depending on the shape of the blower box 71 and the position of the vent 71f, and is an angle determined by a flow experiment. Accordingly, when the damper 76 is stationary at the angle of the second posture, the air flow velocity including ions released into the space outside the apparatus becomes high (maximum), and ions can be distributed far away.

  FIG. 8 is a detailed vertical cross-sectional view showing the configuration of the main part around the outlet of the washing / drying machine from a lateral viewpoint. As shown in FIG. 8, the blowing pipe 81 has a nozzle part 81b refracted forward at the upper part, and an outlet 81a is opened at the tip of the nozzle part 81b. The disc body 82 holds the blowing pipe 81 and is fixed around the nozzle portion 81b with screws. A nozzle cover 83 as a blowout outlet cover is supported on the disc body 82 by a horizontal axis.

  The disc body 82 has a cavity 82a having an open front surface, an upper surface, and a lower surface. The nozzle portion 81b of the outlet pipe 81 is accommodated in the cavity 82a, and the nozzle cover 83 is disposed. The upper surface opening portion of the cavity 82a is blocked by the upper surface portion of the nozzle cover 83, and the front opening portion of the cavity 82a is blocked by the diffuser 83a. Since the lower surface of the nozzle cover 83 is open, it is not blocked. A shaft hole (not shown) is formed in both the left and right side walls of the cavity 82a.

  The disc body 82 has a cylinder port 82c surrounding the periphery of the lower surface opening portion, and the cylinder port 82c is formed with a diameter slightly smaller than the diameter of the entire disc body, so that the cylinder port 82c is formed around the lower surface of the disc body 82. The flange part 82d surrounding the periphery of is formed. The disc body 82 is attached to the disc body receiving portion 14b by the cylindrical opening 82c being loosely fitted to the inner periphery of the support wall 14c and the flange portion 82d being supported by the upper end of the support wall 14c.

  The nozzle cover 83 has a box shape with the lower surface opened, and has a diffuser 83a for diffusing ion wind blown from the air outlet 81a on the front surface. The nozzle cover 83 has a horizontal shaft (not shown) projecting from both the left and right side portions, and the horizontal shaft is fitted into a shaft hole provided in the side wall of the cavity 82a, so that It is arranged to be tiltable. The diffuser 83a faces the air outlet 81a.

  The back panel 14 is integrally provided with a cup-shaped disc body receiving portion 14b having an insertion hole 14a as a center. The disc body receiving portion 14b includes an annular support wall 14c that supports the disc body 82 with a flange portion 82d, and an annular levee wall 14d that is provided inside the support wall 14c and surrounds the insertion hole 14a. On the bottom surface of the disc body receiving portion 14b surrounded by the support wall 14c and the bank wall 14d, a water channel 14e for entering the cavity inside the disc body 81 is formed. The water channel 14e is formed with a slope that decreases toward the rear, and a drain hole 14f that opens to the outside of the machine is provided at a position where the slope is lowest.

  Accordingly, even if water enters the cavity 82a inside the disk body 82 from the gap between the nozzle cover 83 and the disk body 82 or from the diffuser 83a, the water channel 14e of the disk body receiving portion 14b can be used as long as the height of the bank wall 14d is not exceeded. Since the water is discharged from the drain hole 14f to the outside of the apparatus, water can be prevented from entering the drying unit K. In addition, since the bottom surface of the flow path in the duct 71c has a slope that decreases from directly below the vent hole 71f to the exhaust port 71b, the water flows from the water or the diffuser 83a that overflows the water channel 14e beyond the embankment wall 14d. Even if the water that directly jumps into the blower outlet 81a passes through the blower pipe 81 and enters the drying unit K, the water that has fallen directly below the vent hole 71f remains on the bottom surface of the flow passage inside the duct 71c. According to the gradient, it flows through the space formed between the lower side of the heater 80 and the bottom surface of the duct 71c, flows to the exhaust port 71b, and is discharged into the dehydration tank 30 from the exhaust port 71b. Thus, it is possible to prevent the drying unit K from being troubled such as the heater 80 being submerged.

  The insertion hole 14a is a cylindrical port protruding downward, and a fixed pipe 84 for positioning the blowout pipe 81 is attached to the insertion hole 14a by fitting and screwing. An O-ring 85 for sealing the blowing pipe 81 is fitted on the inner periphery of the fixed pipe 84. The ventilation port 71f of the drying unit K is located immediately below the insertion hole 14a. When the blowing pipe 81 assembled with the disk body 82 and the nozzle cover 83 is fitted into the fixed pipe 84, the blowing pipe 81 is It is fitted and connected to the vent 71f.

  FIG. 9 is a perspective view showing the outer box top plate of the washing and drying machine from a front oblique perspective, and shows a state where the nozzle cover is laid down (a) and a state where the nozzle cover is raised (b). FIG. 10 is an enlarged view of the main part of FIG.

  In the present embodiment, the nozzle cover 83 can tilt. When the nozzle cover 83 is tilted manually, the elevation angle of the diffuser 83a is varied. As shown in FIGS. 9A and 10, when the nozzle cover 83 is laid down, the diffuser 83a faces horizontally, and the lower half of the diffuser 83a is hidden inside the disc body 82, so that the exposed area of the diffuser 83a is large. Since it is halved, an ion wind with a high flow velocity is blown out horizontally. Therefore, it is suitable for spotting ions far away.

  As shown in FIG. 9B, when the nozzle cover 83 is raised, the diffuser 83a faces obliquely upward and the entire diffuser 83a is exposed, so the height of the outer box top plate (about 100 cm from the floor) ) Is diffused over a wide range from the diffuser 83a located at (1), and an ion wind is blown out. Therefore, it is suitable for evenly distributing ions throughout the space.

  The disc body 82 can be rotated 360 ° horizontally. When the disk body 82 is manually rotated, the blow-out pipe 81 and the nozzle cover 83 held by the disk body 82 are also rotated together. Accordingly, the azimuth angle of the air outlet 81a is varied by 360 °. When combined with the tilting of the nozzle cover 83, the vertical angle of the diffuser 83a can also be varied, so that an ion wind can be blown out in any direction.

With reference to FIG. 3 and FIG. 4, an ion blowing operation for performing sterilization and deodorization inside the dehydration tank and outside the machine performed by the washing and drying machine of the present embodiment configured as described above will be described.
<Ion blowing operation in the tank>
As shown in FIG. 4A, the damper 76 is stopped in the first posture, and when the blower fan 73 is rotated, air is sucked into the blower box 71 in the direction of arrow a in FIG. Accordingly, the air blowing means 70 introduces outside air from the opening 17 in the direction of arrow b, and introduces inside air from the through hole 13 in the direction of arrow c. This air is sucked from the air inlet 93 of the foreign material storage box 90 into the foreign material storage box 90 and the filter 100 to the intake port 71a. At this time, foreign matters such as dust contained in the intake air are removed when passing through the filter 100 and adhere to and accumulate on the lower surface (entrance side) of the filter 100. The foreign matter accumulated on the filter 100 falls into the foreign matter storage box 90 due to vibration during operation or the like, and is stored in the foreign matter storage box 90.

  The air blown by the blower fan 73 is mixed with positive ions and negative ions generated from the ion generator 75 to become an ion wind. The ion wind flows through the passage in the duct 71c in the direction of the arrow d, and is sent from the bellows tube 74 into the dehydration tank 30 as indicated by the arrow e. Thereby, the space in the machine can be purified, and mold generated in the dewatering tank 30 and a strange odor in the machine can be suppressed. Thereafter, the ion wind is exhausted from the exhaust filter 23 to the outside of the dehydration tank 30. The ion blowing operation in the tank may be performed as a single operation mode independent of the washing, dehydrating or drying operation, or may be performed during the washing, dehydrating or drying operation or after completion of the washing or dehydrating operation. .

<External ion blowing operation>
As shown in FIG. 4B, the damper 76 is stopped in the second posture, and the ionic wind flows through the blowing pipe 81 in the direction of the arrow f in FIG. 4B, and from the blowing pipe 81 to FIG. 3B. The air is sent to the space outside the aircraft as indicated by the arrow g. Thereby, sanitary space, such as a washroom in which the washing-drying machine was installed, can be purified, and mold generated on the wall and off-odor from the machine can be suppressed. The external ion blowing operation may be performed as a single operation mode independent of the washing, dehydration or drying operation, or may be performed during the washing, dehydration or drying operation or after the drying operation.

<Inside and outside ion blowing operation>
As shown in FIG. 3 (c), the damper 76 is stopped in the third posture, and the ion wind flows through the flow path in the duct 71c in the direction of the arrow h in FIG. 4 (c), and the direction as shown by the arrow k. Then, the air is fed into the dehydration tank 30, flows in the blow pipe 81 in the direction of arrow j, and is sent to the space outside the machine as indicated by the arrow m. As a result, sterilization and deodorization both inside and outside the apparatus can be performed at the same time, and the running cost can be reduced as compared to the case where each of the ion blowing operation in the tank and the ion blowing operation outside the apparatus is continuously performed independently. Here, since the cross-sectional area of the flow path in the duct 71c (exhaust path leading to the dehydration tank 30) is set to be larger than the cross-sectional area of the blowout pipe 81 (exhaust path leading to the outside of the machine), The amount of ions released into the dehydration tank 30 can be made larger than the amount released outside the apparatus, and sterilization and deodorization in the dehydration tank 30 can be performed with priority over the space outside the apparatus. .

  The technical idea of the present invention is not limited to the above embodiment, and can be implemented with modifications. For example, in the above embodiment, the case where one ion generator 75 is provided in the drying unit K has been described, but a plurality of ion generators 75 may be provided. According to this, the amount of ions contained in the ion wind increases, and the sterilization / deodorization effect is further improved.

  In the above embodiment, the ion generator 75 disposed in the arcuate flow path 71e is described in an example in which the positive ion generator 751 is disposed on the upstream side and the negative ion generator 752 is disposed on the downstream side. However, the negative ion generator 752 may be arranged in the orientation in which the negative ion generator 752 is located on the upstream side and the positive ion generator 751 is located on the downstream side.

  Moreover, although the said embodiment demonstrated the case where the disc body 82 was rotated manually and the azimuth angle of the blower outlet 81a was changed, drive transmission, such as an electric motor, such as a stepping motor, and a pulley, a gear, etc. which transmit a driving force. A mechanism may be provided to automatically rotate the disc body at a constant angular velocity of 360 °. According to this, ions can be spread evenly over a wide area outside the aircraft.

  Moreover, in the said embodiment, in order to change the horizontal direction of the ionic wind blown from the blower outlet 81a, the blower pipe 81 is fixed to the disk body 82, and the blower pipe 81 is attached to the back panel 14 via the disk body 82. Although the case where it provided so that rotation is possible was demonstrated, the disc body 82 may be abbreviate | omitted and the blowing pipe | tube 81 may be directly provided in the back panel 14 so that rotation is possible.

  Moreover, in the said embodiment, in order to change the vertical direction of the ion wind blown from the blower outlet 81a, the nozzle cover 83 which covers the blower outlet 81a is provided so that rotation around a horizontal axis is possible, and the nozzle cover 83 is turned. Although the elevation angle of the diffuser 83a can be varied by doing so, the nozzle cover 83 is omitted, the nozzle portion 81b of the blowout pipe 81 is used as a bellows tube, and the nozzle portion 81b is twisted to directly vary the elevation angle of the blowout outlet 81a. May be.

  Moreover, in the said embodiment, although the 3rd attitude | position between a 1st attitude | position and a 2nd attitude | position was taken as the position of the louver 76, it is good only as a 1st, 2nd attitude | position.

  Moreover, in the said embodiment, although the ion wind blown from the exhaust port 81b was blown in in the dehydration tank 30, in order to perform disinfection and deodorization of the back side of the dehydration tank 30 effectively, You may make it blow a wind.

  The present invention can be used in a washing and drying machine.

1 Washer / Dryer 10 Outer box 14 Back panel (outer box top plate)
14a Insertion hole 14b Disk body receiving part 14e Water channel 71 Blower box 71a Inlet port 71b Exhaust port 71e Arc-shaped channel 71f Vent port 72 Blower fan (centrifugal fan)
75 Ion generator 751 Positive ion generator 752 Negative ion generator 76 Damper 80 Heater 81 Air outlet 81a Air outlet 82 Disc body 83 Nozzle cover (air outlet cover)
83a Diffuser

Claims (6)

A blower box having a flow path for communicating an intake port for sucking air and an exhaust port for discharging air; a centrifugal fan arranged in the blower box and allowing air to flow through the flow path; and the blower box A heater that heats the air that is disposed and flows through the flow path, and sends the air into the dehydration tank through the exhaust port by the centrifugal fan and is disposed inside the washing dryer A unit,
Mounted on the blower box, an ion generator that emits ions having a sterilization and deodorizing action on the air flowing through the flow path,
Provided in the blower box, the vent communicating with the outside of the washing and drying machine opens into the flow path downstream of the ion generator,
A damper for opening and closing the vent rotatably provided in the blowing box,
Wherein the Tsuryuro around the centrifugal fan, which has an arcuate flow path which becomes gradually wider in the rotational direction of the centrifugal fan,
The ion generator, the vent, and the damper are arranged in a wide downstream portion of the arcuate flow path ,
The drying unit is characterized in that the ion generator is arranged so that an ion generating part for generating ions is along one wall surface of the arcuate flow path, and the vent is opened on the wall surface .   The drying unit according to claim 1, wherein the damper has a cut surface along a curvature of an outer periphery of the centrifugal fan, and is arranged in an orientation in which the cut surface is close to the outer periphery of the centrifugal fan. . The damper includes a first position for opening the exhaust path leading to the dewatering tank by closing the vent, and a second position for closing the exhaust path leading to the dewatering tank by opening the vent, the first drying unit according to claim 1 or claim 2, characterized in that it may take the third posture positioned between the one position the second position. The second posture is a rotation angle within 90 ° with respect to the first posture, and is set to a posture in which an outlet flow velocity of an air flow passing through the vent is maximized. Item 4. The drying unit according to Item 3. Washing dryer example Bei drying unit according to any of claims 1 to 4. The washing / drying machine according to claim 5, wherein an outlet pipe having an outlet facing the outside is connected to the vent hole .

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