WO2022142190A1 - 烘干机 - Google Patents

烘干机 Download PDF

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Publication number
WO2022142190A1
WO2022142190A1 PCT/CN2021/101719 CN2021101719W WO2022142190A1 WO 2022142190 A1 WO2022142190 A1 WO 2022142190A1 CN 2021101719 W CN2021101719 W CN 2021101719W WO 2022142190 A1 WO2022142190 A1 WO 2022142190A1
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WIPO (PCT)
Prior art keywords
water
passage
air
path
dryer
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Application number
PCT/CN2021/101719
Other languages
English (en)
French (fr)
Inventor
乾浩章
山内智博
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2022142190A1 publication Critical patent/WO2022142190A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the present invention relates to a dryer.
  • the all-in-one washer and dryer described in the following Patent Document 1 includes: a washing tub, which accommodates clothes; a circulating air duct, which has one end and the other end communicated with the washing tub; a blower and a heater, which are provided in the circulating air duct; There is a mountain-shaped portion narrowing the air passage section in the middle of the circulation air passage, and a heat exchange water passage, which is connected to the circulation air passage.
  • the moist air in the washing tub is taken out by the blower to the circulating air duct.
  • the water for heat exchange is supplied from the heat exchange water passage to the circulation air passage, and the air is dehumidified by exchanging heat with the air in the dehumidification part.
  • the dehumidified air is heated by the heater and returned to the washing tub. By the circulation of such air, the laundry in the washing tub is dried.
  • Dehumidifiers for dehumidifying humid air in a dryer are generally a water-cooled type using water for heat exchange as in Patent Document 1, an air-cooled type using outside air instead of water, and a combination of water and outside air. mixed type.
  • a dehumidification facility since the temperature of the circulating air is lowered by heat exchange during dehumidification, the reheating of the air by the heater takes time. As a result, the power consumption of the heater is increased, and the time of the drying operation is increased.
  • the dehumidifier when the dehumidifier is a water-cooled type, a large amount of water for heat exchange is required, and when the dehumidifier is of an air-cooled type, the dehumidification performance varies depending on the temperature of the outside air, so it is difficult to obtain stable dehumidification performance.
  • Patent Document 1 Japanese Patent Laid-Open No. 2009-34258
  • the present invention was made in view of this background, and an object thereof is to provide a dryer using a new dehumidification device.
  • the present invention is a dryer comprising: an accommodating cylinder for accommodating objects to be dried; an inflow path for allowing air to flow into the accommodating cylinder; an outflow path for allowing air to flow out from the accommodating cylinder; the inflow path, the accommodating cylinder, and the outflow path sequentially flow; a heating unit for heating the air flowing from the inflow path to the accommodating cylinder; and a dehumidifier for heating the air flowing through the outflow path
  • the dehumidification device includes: an electrification part for electrifying moisture contained in the air flowing through the outflow path; a collection part for collecting the electrified moisture through the electrification part; The moisture collected by the collecting part is discharged to the outside of the outflow path.
  • the present invention is characterized in that the accommodating tank includes a water tank capable of storing water, and the dryer includes: a drainage path connected to the water tank to discharge water from the water tank; and a drain valve for the A drain path is opened and closed, and the drain path is connected to an upstream portion between the drain valve and the water tank in the drain path.
  • the present invention is characterized in that the accommodating tank includes a water tank capable of storing water, and the dryer includes: a drainage path connected to the water tank to discharge water from the water tank; and a drain valve for the The drainage channel is opened and closed, the outflow channel is connected to the water tank, and the drainage channel is arranged in the outflow channel.
  • the present invention is characterized in that the dryer includes a control unit that controls the air blowing unit, the heating unit, and the dehumidifying device to execute the drying of the object to be dried in the container. a drying operation for drying; and a temperature detection unit for detecting the temperature of the air flowing from the inflow passage to the outflow passage, and in the drying operation, the control unit based on the detection by the temperature detection unit As a result, the dehumidification device is controlled.
  • the present invention is characterized in that the outflow passage is branched into an exhaust passage that communicates with the outside of the dryer and a connection passage that is connected to the inflow passage, and the dryer includes a switching portion that passes The control by the control unit causes the air in the outflow passage to flow to the exhaust passage or to the connection passage.
  • the present invention is characterized in that the dehumidification equipment includes a mist supply unit that supplies mist into the outflow passage.
  • the present invention is characterized in that the accommodating tub includes a water tub capable of storing water; and a rotating tub that is rotatably arranged in the water tub and accommodates the drying object, and the dryer includes a drainage path, connected with the water tank to discharge water from the water tank; a drain valve, to open and close the drainage path; a water supply path, connected to the water tank, to supply water to the water tank; and a water supply valve to open and close the water supply path opening and closing; a control unit for drying the drying object in the rotary drum by controlling the air blowing unit, the heating unit, the dehumidifying device, the drain valve, and the water supply valve and a water level detection unit for detecting the water level in the water tank, and in the drying operation, the control unit opens the water supply valve in a state where the drain valve is closed, and sends the water to the water tank. Water is internally stored until the water level in the water tank detected by the water level detection unit reaches a predetermined water level below the rotating drum.
  • the air heated by the heating unit flows into the container from the inflow path, and dries the drying object in the container.
  • the air flowing out from the accommodating cylinder to the outflow path is dehumidified by the dehumidifying device.
  • the electrifying part electrifies the moisture contained in the air flowing through the outflow path
  • the collecting part collects the charged moisture
  • the discharge path discharges the collected moisture to the outside of the outflow path. In this way, it is possible to provide a dryer using a new dehumidification device that collects and electrifies moisture.
  • the discharge path of the dehumidification device is connected to the upstream portion between the drain valve and the water tank in the drain path extending from the water tank.
  • the upstream portion of the water discharge passage accumulates water. Therefore, the air in the container can be dehumidified not only by the dehumidifier but also by the water stored in the upstream part of the drainage passage, so that the dehumidification performance of the entire dryer can be maximized.
  • the discharge path of a dehumidification apparatus is arrange
  • the water collected by the dehumidifier and flowing through the discharge passage flows through the outflow passage, flows into the container, and is discharged from the water discharge passage to the outside of the machine.
  • dirt such as foam and dust in the outflow passage and the storage cylinder can be removed by the water flowing into the storage cylinder through the discharge passage and the outflow passage.
  • the dehumidifier in the drying operation, is controlled according to the temperature of the air flowing from the inflow path to the outflow path, in other words, according to the drying state of the drying object in the container, so that the dehumidifier can be Work properly to efficiently dry the drying object.
  • the air flowing out from the housing cylinder to the outflow passage can be discharged to the outside of the machine by flowing it to the exhaust passage.
  • the air can be recycled by returning the air to the inflow passage, thereby reusing it for the drying of the object to be dried in the storage cylinder. drying.
  • the ratio of the air discharged to the outside of the machine and the circulating air among the air flowing out of the outflow passage can also be adjusted by the switching unit.
  • the mist supplied by the mist supply portion into the outflow passage makes the moisture charged by the electrification portion into water droplets of a size easily collected by the collecting portion, so the collecting portion can efficiently collect the moisture.
  • water can be stored in the water tub of the accommodating tub.
  • the air in the container can be dehumidified not only by the dehumidifier but also by the water stored in the water container, so that the dehumidification performance of the entire dryer can be maximized.
  • the water stored in the water tub does not come into contact with the rotating tub, it is possible to prevent the water in the water tub from splashing and wetting the drying object when the rotating tub rotates during the drying operation.
  • Fig. 1 is a schematic vertical cross-sectional right side view of a dryer according to an embodiment of the present invention.
  • FIG. 2 is a plan view of an electrification part of a dehumidifying device constituting the dryer.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 .
  • FIG. 4 is a cross-sectional view taken along line BB of FIG. 2 .
  • Fig. 5 is a plan view of a collection part constituting the dehumidification device.
  • FIG. 6 is a cross-sectional view taken along line CC of FIG. 5 .
  • FIG. 7 is a cross-sectional view taken along the line DD of FIG. 5 .
  • FIG. 8 is a diagram showing one electrode extracted from FIG. 6 .
  • Fig. 9 is a block diagram showing an electrical configuration of the dryer.
  • Fig. 10 is a time chart showing the drying operation of the dryer.
  • FIG. 11 is a schematic vertical cross-sectional right side view of the dryer according to the first modification of the present invention.
  • FIG. 12 is a schematic vertical cross-sectional right side view of a dryer according to a second modification of the present invention.
  • FIG. 13 is a schematic vertical cross-sectional right side view of a dryer according to a third modification of the present invention.
  • FIG. 14 is a schematic vertical cross-sectional right side view of a dryer according to a fourth modification of the present invention.
  • FIG. 15 is a schematic vertical cross-sectional right side view of a dryer according to a fifth modification of the present invention.
  • 16 is a schematic vertical cross-sectional right side view of a dryer according to a sixth modification of the present invention.
  • 17 is a schematic vertical cross-sectional right side view of a main part in a dryer according to a seventh modification of the present invention.
  • Fig. 18 is a cross-sectional view taken along line EE of Fig. 17 .
  • Fig. 1 is a schematic vertical cross-sectional right side view of an all-in-one washer-dryer 1 according to an embodiment of the dryer of the present invention.
  • the direction perpendicular to the paper surface in FIG. 1 is referred to as the left-right direction X of the washer-drying machine 1
  • the left-right direction in FIG. 1 is referred to as the front-rear direction Y of the washer-drying machine 1
  • the vertical direction in FIG. 1 is referred to as It is the vertical direction Z of the washer-drying machine 1 .
  • the left side X1 is called the left side X1
  • the front side of the paper surface of FIG. 1 is called the right side X2.
  • the left side in FIG. 1 is called front side Y1
  • the right side in FIG. 1 is called back side Y2.
  • the upper side is referred to as an upper side Z1
  • the lower side is referred to as a lower side Z2.
  • the left-right direction X and the front-rear direction Y are included in the lateral direction.
  • the lateral direction may be the horizontal direction H, or may be a substantially horizontal direction slightly inclined with respect to the horizontal direction.
  • the drum-type all-in-one washer-drying machine is mainly targeted as the all-in-one washer-drying machine 1 , but the all-in-one washer-drying machine 1 may be a vertical all-in-one washer-drying machine.
  • the present invention is also intended for a dryer that omits the washing function and executes only the drying operation.
  • the drying object of the all-in-one washer-drying machine 1 is the laundry L such as clothes, but may be shoes, tableware, or the like.
  • the washer-drying machine 1 includes: a box body 2; an accommodating cylinder 5, which is arranged in the box body 2, including a water tank 3 and a rotating drum 4, and contains laundry L; a water supply channel 6 and a drainage channel 7, which are connected to the water tank 3; , to rotate the rotary drum 4; and a drying unit 9 to dry the laundry L.
  • the case 2 is formed in a box shape.
  • the front surface 2A of the case 2 is, for example, a vertical surface.
  • An opening 2B that communicates the inside and the outside of the case 2 is formed on the front surface 2A.
  • a door 10 that opens and closes the opening 2B is provided on the front surface 2A.
  • the water tank 3 is supported by the damper 11 extending from the bottom wall 2C of the casing 2 to the upper side Z1, and is suspended by a spring (not shown). Thereby, the entire accommodating cylinder 5 including the water cylinder 3 is elastically supported.
  • the damper 11 is only shown in figure in FIG. 1 .
  • the water tank 3 has: a cylindrical peripheral wall 3A, centered on an axis J extending in the front-rear direction Y along the horizontal direction H; a disc-shaped back wall 3B, which blocks the hollow portion of the peripheral wall 3A from the rear side Y2; And the annular front wall 3C is connected to the front end edge of the peripheral wall 3A.
  • a through hole 3D penetrating the rear wall 3B in the front-rear direction Y along the axis J is formed in the center of the rear wall 3B.
  • the front wall 3C has an annular first portion 3E protruding from the front end edge of the peripheral wall 3A toward the axis J side, and a cylindrical second portion 3F protruding from the inner peripheral edge of the first portion 3E to the front side Y1; And the annular third portion 3G protrudes toward the axis J side from the front end edge of the second portion 3F.
  • a port 3H that communicates with the hollow portion of the peripheral wall 3A from the front side Y1 is formed inside the third portion 3G.
  • the inlet and outlet 3H are in a state of being opposed to and communicating with the opening 2B of the case 2 from the rear side Y2.
  • the rotating drum 4 is a cylindrical body having a center axis that coincides with the axis J, and is slightly smaller than the water drum 3 .
  • the rotating drum 4 is arranged horizontally in the water tub 3 so that the central axis thereof is along the horizontal direction H, but it may be arranged obliquely so that the central axis is inclined with respect to the horizontal direction H. As shown in FIG.
  • the rotating drum 4 has: a cylindrical peripheral wall 4A, which is arranged coaxially with the peripheral wall 3A of the water tub 3; a disk-shaped rear wall 4B, which blocks a hollow portion of the peripheral wall 4A from the rear side Y2;
  • the annular wall 4C protrudes toward the axis J side from the front end edge of the peripheral wall 4A.
  • a plurality of through holes 4D are formed in the peripheral wall 4A and the rear wall 4B.
  • a support shaft 12 extending toward the rear side Y2 along the axis J is provided at the center of the rear wall 4B of the rotating drum 4 .
  • the rear end portion of the support shaft 12 passes through the through hole 3D of the rear wall 3B of the water tub 3 and is arranged on the rear side Y2 from the rear wall 3B.
  • an inlet/outlet 4E that communicates with the hollow portion of the peripheral wall 4A from the front side Y1 is formed.
  • the inlet and outlet 4E are in a state of facing and communicating with the inlet and outlet 3H of the water tub 3 and the opening 2B of the case 2 from the rear side Y2.
  • the door 3H and the door 4E are opened and closed by the door 10 together with the opening 2B.
  • the user of the all-in-one washer-dryer 1 takes the laundry L into and out of the rotary drum 4 via the opened opening 2B, the inlet and outlet 3H, and the inlet and outlet 4E.
  • the door 10 is provided with a gasket 13 that is in close contact with the third portion 3G of the front wall 3C of the water tank 3 when the door 10 closes the opening 2B, the entrance 3H, and the entrance 4E.
  • the water supply path 6 has one end (not shown) connected to a faucet (not shown) and the other end connected to, for example, an upper portion of the second portion 3F of the front wall 3C of the water tank 3 in the case 2, and the other end is provided with There is a water supply port 6A facing the inside of the water tank 3 from the upper side Z1.
  • the tap water from the faucet is supplied into the water tank 3 from the water supply port 6A through the water supply passage 6 .
  • the water tank 3 stores tap water or detergent water in which detergent is dissolved in the tap water.
  • tap water and detergent water may be simply referred to as "water”.
  • the water in the water tub 3 flows between the water tub 3 and the rotary tub 4 via the through hole 4D of the rotary tub 4 . Therefore, the water level in the water tub 3 matches the water level in the rotating tub 4 .
  • the all-in-one washer and dryer 1 includes a water level detector 14 for detecting the water level in the water tub 3 , and an openable and closable water supply valve 15 provided in the middle of the water supply passage 6 .
  • a float type water level sensor a piezoelectric sensor, an electrode sensor, a magnetic sensor, an ultrasonic sensor, an optical sensor, or the like can be used.
  • the water level detection unit 14 in the present embodiment is a piezoelectric sensor with a built-in diaphragm (not shown), and is connected to the water tank 3 via a hose 16 .
  • the water level detector 14 detects the water level in the water tank 3 by measuring the pressure in the hose 16 which fluctuates with the change of the water level in the water tank 3 through the diaphragm.
  • the water level detection part 14 is only shown in figure in FIG.1 and FIG.9.
  • the water supply valve 15 in the open state allows water to be supplied to the water tank 3 , that is, the storage tank 5 by opening the water supply passage 6 .
  • the water supply valve 15 in the closed state stops the water supply to the container cylinder 5 by closing the water supply passage 6 .
  • the drainage passage 7 is connected to the lower end portion of the water tub 3, for example, the lower end portion of the circumferential wall 3A.
  • the water in the water tank 3 is drained out of the casing 2 , that is, outside the machine, through the drainage channel 7 .
  • the washer-dryer 1 includes an openable and closable drain valve 17 provided in the middle of the drain passage 7 .
  • the drain valve 17 in the open state allows draining of the water tank 3 by opening the drain path 7 .
  • the drain valve 17 in the closed state stops the drain by closing the drain path 7 .
  • the area between the drain valve 17 and the water tank 3 in the drain passage 7 is called an upstream part 7A, and the area farther from the water tank 3 than the drain valve 17 is called a downstream part 7B.
  • the motor 8 is arranged on the rear side Y2 of the rear wall 3B of the water tank 3 in the casing 2 .
  • a DD (Direct Drive) motor can be used as an example of the motor 8.
  • the motor 8 is connected to a support shaft 12 provided in the rotating drum 4.
  • the torque generated by the motor 8 is transmitted to the support shaft 12 , and the rotary drum 4 rotates around the axis J along the support shaft 12 .
  • the clutch mechanism (not shown) which transmits or cuts off the torque of the motor 8 to the support shaft 12 may be provided between the motor 8 and the support shaft 12.
  • the drying unit 9 includes: a circulation path 20 and an air supply part 21 for circulating the air in the water tank 3; a heating part 22 for heating the circulating air;
  • the circulation path 20 is a flow path arranged, for example, on the upper side Z1 of the water tank 3 in the casing 2 .
  • the circulation path 20 has a midway portion 20A extending in the front-rear direction Y; a rear portion 20B extending from the rear end of the midway portion 20A to the lower side Z2 and then bending to the front side Y1; and a front portion 20C extending from the midway portion 20A to the front side Y1 The front end extends to the lower side Z2.
  • a take-out port 20D is formed at the front end of the lower end portion of the rear portion 20B.
  • the extraction port 20D is connected to the lower part of the back wall 3B of the water tank 3, and communicates with the inside of the water tank 3 from the rear side Y2.
  • a return port 20E is formed at the lower end of the front portion 20C.
  • the return port 20E is connected to the upper end of the second portion 3F of the front wall 3C of the water tank 3, and communicates with the inside of the water tank 3 from the upper side Z1.
  • the air blower 21 is a so-called blower, and includes a rotor blade 21A disposed in the midway portion 20A of the circulation path 20 and a motor 21B that rotates the rotor blade 21A (see later-described FIG. 17 ).
  • the rotary vane 21A rotates, as indicated by the thick dashed arrow, the air in the container 5, that is, the air in the water tub 3 and the air in the rotary drum 4 is taken out from the take-out port 20D into the circulation path 20, and then returned from the return port 20E to the circulation path 20. in the water tank 3.
  • the air in the water tank 3 circulates so as to flow through the water tank 3 and the circulation path 20 in sequence.
  • the portion of the circulation path 20 from the return port 20E to the blower portion 21 may be referred to as an inflow path 20F for allowing air to flow into the container 5
  • the portion of the circulation path 20 from the extraction port 20D to the blower portion 21 may be referred to as an inflow path 20F.
  • the part is referred to as the outflow passage 20G through which the air flows out of the housing cylinder 5 .
  • the inflow path 20F is connected to the water tank 3 at the return port 20E, and the outflow path 20G is connected to the water tank 3 at the extraction port 20D.
  • the circulated air flows through the inflow passage 20F, the housing cylinder 5, and the outflow passage 20G in this order.
  • the heating unit 22 is a heat exchanger in a heat pump, a general heater, or the like, and at least a part thereof is provided in the circulation path 20 .
  • a portion of the heating portion 22 provided in the circulation path 20 has a heat dissipation portion 22A.
  • the heat dissipating portion 22A is arranged in the circulation path 20 on the downstream side closer to the return port 20E than the rotor blade 21A of the air blower 21 , but may be arranged on the upstream side farther from the return port 20E than the rotor blade 21A.
  • the rotor blade 21A and the heat dissipation portion 22A are arranged in the inflow passage 20F.
  • the heat dissipation part 22A becomes high temperature, so the air flowing in the circulation path 20 is heated and becomes hot air when passing around the heat dissipation part 22A, and then flows into the container 5. In this way, the heating unit 22 heats the air that has flowed into the housing cylinder 5 from the inflow passage 20F.
  • the dehumidifying device 23 includes a charging unit 24 that charges moisture contained in the air flowing through the circulation path 20, more specifically, the outflow path 20G, and a collecting unit 25 that collects the moisture charged by the charging unit 24. ; And the discharge path 26, the water collected by the collecting part 25 is discharged to the outside of the circulation path 20.
  • the charging part 24 and the collecting part 25 are arranged in the circulation path 20 in the outflow path 20G which is a region closer to the upstream side of the extraction port 20D than the air blowing part 21 and the heating part 22 .
  • FIG. 2 is a plan view of the electrification portion 24 .
  • the charging part 24 includes: a hollow case 30 ; a plurality of first electrodes 31 arranged in the case 30 ; and second electrodes 32 arranged between adjacent first electrodes 31 .
  • An example of the casing 30 is a rectangular parallelepiped composed of four vertical walls 30A extending in the vertical direction Z.
  • the space surrounded by these vertical walls 30A is the inner space 30B of the casing 30 .
  • a rectangular inlet 30C surrounded by the lower ends of the four vertical walls 30A and a rectangular outlet 30D surrounded by the upper ends of the four vertical walls 30A are formed in the casing 30 (see also FIG. 3 ).
  • the inner space 30B is opened to the lower side Z2 from the inlet 30C, and is opened to the upper side Z1 from the outlet 30D.
  • the casing 30 constitutes a part of the outflow passage 20G of the circulation passage 20 , specifically, a part of the portion extending in the vertical direction Z in the rear portion 20B (see FIG. 1 ).
  • the inner space 30B, the inlet 30C, and the outlet 30D of the casing 30 constitute a part of a region extending in the vertical direction Z in the inner space of the outflow passage 20G.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 .
  • the air flowing through the circulation path 20 ascends from the inlet 30C to the outlet 30D in the casing 30 (refer to the thick dotted arrow).
  • a pair of vertical walls 30AA are arranged so as to be orthogonal to the remaining pair of vertical walls 30AB.
  • a lower end portion of one of the pair of vertical walls 30AA includes a through hole 30E; a slope 30F protruding from the lower end of the through hole 30E to the inner space 30B; and a guide box 30G covering the through hole from outside the casing 30 30E.
  • the through hole 30E, the slope 30F, and the guide box 30G are long sides in the opposing direction P of the pair of vertical walls 30AB.
  • the through-hole 30E and the slope 30F are provided so as to extend over the entire area in the opposing direction P in the inner space 30B.
  • the slope 30F is arranged so as to be inclined obliquely upward from the through hole 30E, and the upper surface 30H of the slope 30F is also inclined.
  • the protrusion 30I protruding to the upper side Z1 is provided in the upper end part farthest from the through-hole 30E in the upper surface 30H.
  • FIG. 4 is a cross-sectional view taken along line BB of FIG. 2 .
  • the bottom surface 30K of the guide box 30G which partitions the inner space 30J from the lower side Z2 is connected to the lower end of the upper surface 30H of the slope 30F via the through hole 30E.
  • the bottom surface 30K is, for example, an inclined surface gradually descending toward one of the opposing directions P, and a discharge port 30L is formed at the lower end thereof.
  • a cylindrical connecting portion 30M protruding to the lower side Z2 in a state of surrounding the discharge port 30L is provided.
  • the first electrode 31 is a thin plate-shaped opposing electrode in the opposing direction P, and is formed of, for example, stainless steel or aluminum, and thus has conductivity.
  • five sheets of the first electrodes 31 are arranged in the inner space 30B of the case 30 at equal intervals in the opposing direction P (see FIG. 2 ).
  • Each of the first electrodes 31 is positioned in the inner space 30B (see FIG. 3 ) by engaging the wide-width portion 31A of the upper end portion with the step portion 30N of the outlet 30D of the case 30 to engage with the stepped portion 30D.
  • the lower end edge 31B on the side of the inlet 30C of the case 30 in each of the first electrodes 31 is linearly inclined so as to gradually descend toward the through hole 30E of the vertical wall 30AA.
  • the lower end portion on the through hole 30E side of the lower end edge 31B of each first electrode 31 is arranged just above the slope 30F, and is arranged at the same position as the through hole 30E in the vertical direction Z.
  • the second electrode 32 is a discharge electrode made of a wire, for example, tungsten, and thus has conductivity, and has a polarity opposite to that of the first electrode 31 .
  • the second electrodes 32 are disposed between the adjacent first electrodes 31 one by one, and are spanned between a pair of vertical walls 30AA (refer to FIGS. 2 and 3 ).
  • the second electrode 32 is not in contact with the first electrode 31 and is linearly inclined so as to be parallel to the lower end edge 31B at a position above Z1 from the lower end edge 31B of the first electrode 31 (see FIG. 3 ).
  • the polarity of the first electrode 31 is the negative electrode on the ground side
  • the polarity of the second electrode 32 is the positive electrode.
  • the moisture contained in the air flowing between the first electrode 31 and the second electrode 32 charges the positive electrode by colliding with cations and electrons.
  • the water charged to the positive electrode is drawn to the first electrode 31 of the negative electrode and collected by the first electrode 31 .
  • the air between the 1st electrode 31 and the 2nd electrode 32 is dehumidified.
  • the water collected by the first electrode 31 becomes water droplets on the surface of the first electrode 31, flows along the inclination of the lower end edge 31B of the first electrode 31 due to its own weight (see arrow Q1 in FIG. 3 ), and falls on the upper surface of the slope 30F 30H.
  • the moisture falling on the upper surface 30H flows down along the inclination of the upper surface 30H, flows into the inner space 30J of the guide box 30G (see arrow Q2 in FIG. 3 ), and flows down along the inclination of the bottom surface 30K of the guide box 30G, and flows out from the discharge port 30L into the connecting portion 30M (see arrow Q3 in FIG. 4 ).
  • the first electrode 31 has a polarity opposite to that of charged water, and collects the water. It should be noted that the opposite structure in which the polarity of the first electrode 31 is positive and the polarity of the second electrode is negative can also be adopted, and in this structure, the second electrode 32 discharges and the first electrode 31 collects water. It should be noted that, in the present embodiment, the inlet 30C and the outlet 30D of the casing 30 are arranged so as to be aligned in the vertical direction Z in accordance with the fact that the air flows upward in the casing 30 .
  • the air may flow laterally in the left-right direction X or the like in the casing 30, and in this case, the posture of the casing 30 may be changed so that the inlet 30C and the outlet 30D are arranged laterally.
  • the first electrode 31 and the second electrode 32 are arranged along the flow of the air flowing from the inlet 30C to the outlet 30D so as not to obstruct the flow of the air.
  • FIG. 5 is a plan view of the collecting part 25 .
  • the collecting part 25 is arranged on the downstream side of the electrification part 24 in the flow direction of the air in the circulation path 20 (thick dashed arrow in FIG. 1 ).
  • the collecting part 25 includes: a hollow casing 40 ; a plurality of third electrodes 43 arranged in the casing 40 ; and fourth electrodes 44 arranged between adjacent third electrodes 43 .
  • An example of the casing 40 is a rectangular parallelepiped composed of four vertical walls 40A extending in the vertical direction Z.
  • the space surrounded by these vertical walls 40A is the inner space 40B of the casing 40 .
  • a rectangular inlet 40C surrounded by the lower ends of the four vertical walls 40A and a rectangular outlet 40D surrounded by the upper ends of the four vertical walls 40A are formed in the casing 40 (see also FIG. 6 ).
  • the inner space 40B is opened to the lower side Z2 from the inlet 40C, and is opened to the upper side Z1 from the outlet 40D.
  • the casing 40 constitutes a part of the outflow passage 20G of the circulation passage 20 , specifically, a part of the portion extending in the vertical direction Z in the rear portion 20B (see FIG.
  • the inner space 40B, the inlet 40C, and the outlet 40D of the casing 40 constitute a part of a region extending in the vertical direction Z in the inner space of the outflow passage 20G.
  • the inlet 40C of the case 40 communicates with the outlet 30D (see FIG. 3 ) of the case 30 of the charging portion 24 from the upper side Z1 .
  • FIG. 6 is a cross-sectional view taken along line CC of FIG. 5 .
  • the air flowing through the circulation path 20 and passing through the casing 30 of the electrification unit 24 ascends from the inlet 40C to the outlet 40D in the casing 40 (refer to the thick dotted arrow).
  • a pair of vertical walls 40AA are arranged so as to be orthogonal to the remaining pair of vertical walls 40AB.
  • a lower end portion of one of the pair of vertical walls 40AA includes a through hole 40E, a slope 40F that protrudes from the lower end of the through hole 40E to the inner space 40B, and a guide box 40G that covers the through hole 40E from outside the casing 40 .
  • the through hole 40E, the slope 40F, and the guide box 40G are long sides in the opposing direction R of the pair of vertical walls 40AB.
  • the through-hole 40E and the slope 40F are provided so as to extend over the entire area in the opposing direction R in the inner space 40B.
  • the slope 40F is arranged so as to be inclined obliquely upward from the through hole 40E, and the upper surface 40H of the slope 40F is also inclined.
  • the protrusion 40I protruding to the upper side Z1 is provided in the upper end part farthest from the through-hole 40E in the upper surface 40H.
  • FIG. 7 is a cross-sectional view taken along the line DD of FIG. 5 .
  • the bottom surface 40K of the guide box 40G which partitions the internal space 40J from the lower side Z2 is connected to the lower end of the upper surface 40H of the slope 40F via the through hole 40E.
  • the bottom surface 40K is, for example, an inclined surface gradually descending toward one of the opposing directions R, and a discharge port 40L is formed at the lower end thereof.
  • the cylindrical connection part 40M which protrudes to the lower side Z2 in the state surrounding the discharge port 40L is provided in the lower surface of the guide box 40G.
  • the third electrode 43 is a thin plate-shaped opposing electrode in the opposing direction R, and is formed of stainless steel or aluminum, for example, and thus has conductivity.
  • the seven third electrodes 43 are arranged in the inner space 40B of the case 40 at equal intervals in the opposing direction R (see FIG. 5 ).
  • Each third electrode 43 is positioned in the inner space 40B by engaging the protruding portion 43A protruding from the upper end thereof with the stepped portion 40N of the outlet 40D of the case 40 .
  • all the 3rd electrodes 43 may be integrated by the connection shaft 45 extended in the opposing direction R, and the protrusion part 43A of each 3rd electrode 43 may be connected in a series (refer FIG. 6).
  • each third electrode 43 on the inlet 40C side of the case 40 is linearly inclined so as to gradually descend toward the through hole 40E of the vertical wall 40AA.
  • the lower end portion on the through hole 40E side of the lower end edge 43B of each third electrode 43 is disposed just above the slope 40F, and is disposed at the same position as the through hole 40E in the vertical direction Z.
  • FIG. 8 is a diagram showing the fourth electrode 44 extracted from FIG. 6 .
  • Each of the fourth electrodes 44 is an insulating electrode having a main body 44A long in the opposing direction S (see FIG. 6 ) of the pair of vertical walls 40AA, and an insulator 44B covering most of the main body 44A.
  • the main body 44A is formed of copper, for example, and thus has conductivity.
  • the main body 44A has the opposite polarity to the third electrode 43 .
  • the insulator 44B has a rectangular plate shape that is thin in the opposing direction R of the pair of vertical walls 40AA and elongated in the opposing direction S.
  • the fourth electrodes 44 are arranged between the adjacent third electrodes 43 one by one, and are spanned between the pair of vertical walls 40AA in a state not in contact with the third electrodes 43 (see FIGS. 5 and 6 ). When viewed from the opposing direction R, most of the fourth electrodes 44 are arranged so as to overlap with the third electrodes 43 (see FIG. 6 ).
  • the base portion 44AA of the main body 44A exposed from the insulator 44B and the portion of the insulator 44B on the side of the base portion 44AA are arranged outside the case 40 .
  • the polarity of the third electrode 43 is the negative electrode on the ground side
  • the polarity of the fourth electrode 44 is the positive electrode.
  • a voltage is applied to the collecting part 25 from a power supply (not shown) provided in the all-in-one washer-dryer 1
  • a high voltage of several kV to several tens of kV is applied between the third electrode 43 and the fourth electrode 44 .
  • the surface of the fourth electrode 44 is formed of the insulator 44B, current does not flow between the third electrode 43 and the fourth electrode 44 . Therefore, it is possible to prevent sparks and voltage fluctuations due to leakage or the like between the third electrode 43 and the fourth electrode 44 .
  • the moisture that flows into the case 40 of the collecting part 25 in the state where the positive electrode is charged by the charging part 24 is removed in this embodiment.
  • the third electrode 43 of the negative electrode collects.
  • the collecting part 25 can collect the charged moisture efficiently. Therefore, the air dehumidified by the charging part 24 is further dehumidified.
  • the water collected by the third electrode 43 becomes water droplets on the surface of the third electrode 43, flows along the inclination of the lower edge 43B of the third electrode 43 due to its own weight (see arrow T1 in FIG. 6 ), and falls on the upper surface of the slope 40F 40H.
  • the moisture falling on the upper surface 40H flows down along the inclination of the upper surface 40H, flows into the inner space 40J of the guide box 40G (see arrow T2 in FIG. 6 ), and flows down along the inclination of the bottom surface 40K of the guide box 40G, and flows from the discharge port 40L It flows into the connecting portion 40M (see arrow T3 in FIG. 7 ).
  • the inlet 40C and the outlet 40D of the casing 40 are arranged so as to be aligned in the vertical direction Z in accordance with the fact that the air rises in the casing 40, but the air may be It flows in the lateral direction in the casing 40, and in this case, the posture of the casing 40 may be changed so that the inlet 40C and the outlet 40D are arranged laterally.
  • the third electrode 43 and the fourth electrode 44 are arranged along the flow of the air flowing from the inlet 40C to the outlet 40D so as not to hinder the flow of the air.
  • the discharge passage 26 is a flow passage extending from the charging portion 24 and the collecting portion 25 to the lower side Z2 and connected to the drainage passage 7 (see FIG. 1 ).
  • One end portion 26A of the discharge path 26 is branched and connected to the connection portion 30M of the charging portion 24 and the connection portion 40M of the collecting portion 25 (see FIGS. 4 and 7 ).
  • the other end portion 26B of the discharge passage 26 opposite to the one end portion 26A is connected to the upstream portion 7A of the drainage passage 7 .
  • the washer-drying machine 1 includes: a humidity detector 50 that detects the humidity of the air circulating between the container 5 and the circulation path 20, that is, the air flowing from the inflow path 20F to the outflow path 20G; and a temperature detector 51 that detects the humidity air temperature.
  • a humidity detection unit 50 a known humidity sensor can be used.
  • the humidity detection part 50 includes: a first humidity detection part 50A, which is arranged in the outflow path 20G between the extraction port 20D and the charging part 24; The downstream portion of the outlet 20D and the third humidity detection portion 50C are arranged between the return port 20E and the heating portion 22 in the inflow passage 20F.
  • the temperature detection unit 51 a known temperature sensor such as a thermistor can be used.
  • the temperature detection unit 51 includes a first temperature detection unit 51A arranged in the outflow channel 20G between the extraction port 20D and the charging unit 24 , and a second temperature detection unit 51B arranged in the outflow channel 20G away from the collection unit 25 .
  • the downstream portion of the outlet 20D and the third temperature detection portion 51C are arranged between the return port 20E and the heating portion 22 in the inflow passage 20F.
  • the humidity detection unit 50 and the temperature detection unit 51 that are arranged in close positions may be integrated into one humidity and temperature detection unit.
  • FIG. 9 is a block diagram showing the electrical configuration of the all-in-one washer-dryer 1 .
  • the all-in-one washer-dryer 1 further includes a control unit 55 .
  • the control unit 55 is, for example, a microcomputer, and includes: a CPU (Central Processing Unit); memories such as ROM (Read Only Memory), RAM (Random Access Memory), and the like; (refer to Fig. 1).
  • the motor 8 , the water level detection unit 14 , the water supply valve 15 , the drain valve 17 , the blower unit 21 , the heating unit 22 , the electrification unit 24 , the collection unit 25 , the humidity detection unit 50 , and the temperature detection unit 51 are electrically connected to the control unit 55 , respectively.
  • the detection values of the water level detection unit 14 , the humidity detection unit 50 , and the temperature detection unit 51 are input to the control unit 55 in real time.
  • the control unit 55 executes the washing and drying operation by controlling the respective operations of the motor 8 , the water supply valve 15 , the drain valve 17 , the blower unit 21 , the heating unit 22 , the charging unit 24 , and the collecting unit 25 .
  • the washing and drying operation includes a washing process in an initial stage, a rinsing process performed one or more times after the washing process, a dehydration process performed at least after the final rinsing process, and a drying process in the final stage. These processes may be separate operations, in which case, for example, the cleaning process is a washing operation and the drying process is a drying operation.
  • the control unit 55 first operates the motor 8 to rotate the rotary drum 4 forward or reversely, and determines the quality of the laundry L in the dry state in the rotary drum 4 based on the current value of the motor 8 at this time.
  • the control unit 55 determines the required amount of detergent and the target water level in the water tub 3 during washing based on the determined quality of the laundry L.
  • the control part 55 displays the information of the determined amount of detergent on the display operation part (not shown) provided in the front surface 2A of the box 2, etc., etc. FIG.
  • the control unit 55 executes the water supply process by opening the water supply valve 15 with the drain valve 17 closed. Thereby, since the tap water from the water supply passage 6 flows in from the water supply port 6A and is stored in the water tank 3, the water level in the water tank 3 rises.
  • the control unit 55 closes the water supply valve 15 to end the water supply process.
  • the water supply amount into the water tank 3 may be measured not by the water level detection part 14 but by the flow sensor provided in the vicinity of the water supply valve 15 or the like.
  • the detergent is manually or automatically introduced into the rotating drum 4 by the user. Thereby, detergent water generated by dissolving the detergent in the tap water is stored in the rotary drum 4 .
  • the control unit 55 rotates the rotary drum 4 by the motor 8 as a cleaning process after the water supply process. Thereby, the laundry L in the rotary drum 4 is beat-washed. In the beating washing, so-called tumbling in which the laundry L is lifted to a certain extent and then naturally falls to the water surface is repeated. The dirt is removed from the laundry L by the impact generated by the tumbling and the detergent components contained in the detergent water stored in the rotary drum 4 .
  • the control unit 55 opens the drain valve 17 to drain the water after a predetermined time has elapsed from the start of the tumbling, the cleaning process ends.
  • the control unit 55 opens the water supply valve 15 for at least a predetermined time with the drain valve 17 closed, stores tap water in the water tub 3 , and then rotates the spin tub 4 by the motor 8 . In this way, since the above-mentioned tumbling is repeated, the laundry L is rinsed with the tap water in the rotary drum 4 .
  • the rinsing process ends when the control unit 55 drains the water after a predetermined time has elapsed from the start of the tumbling.
  • the control unit 55 rotates the spin drum 4 for dehydration with the drain valve 17 open.
  • the laundry L in the rotary drum 4 is dehydrated by centrifugal force generated by the spin-drying rotation of the rotary drum 4 .
  • the water that seeps out from the laundry L by dehydration is drained to the outside of the machine through the drain passage 7 .
  • the dehydration process can be implemented not only after the rinsing process, but also after the washing process.
  • the control part 55 peels or loosens the laundry L in the rotary drum 4 from the peripheral wall 4A of the rotary drum 4 by rapidly repeating the forward rotation and reverse rotation of the rotary drum 4 . Thereby, the laundry L can be prevented from being wrinkled in the subsequent drying process.
  • Fig. 10 is a time chart showing the drying process.
  • the horizontal axis represents elapsed time.
  • the vertical axis represents from bottom to top: the value of the current flowing between the first electrode 31 and the second electrode 32 of the electrification part 24 of the dehumidification device 23, that is, the discharge current value;
  • the detection value is the first humidity
  • the detection value of the first temperature detection unit 51A is the first temperature
  • the detection value of the second humidity detection unit 50B is the second humidity
  • the detection value of the second temperature detection unit 51B is the second temperature
  • the detection value of the three humidity detection unit 50C is the third humidity
  • the detection value of the third temperature detection unit 51C is the third temperature.
  • the unit of the discharge current value is "%" which sets the actual value of the discharge current as 100% at the maximum.
  • the unit of elapsed time is "minute”
  • the unit of humidity is "%”
  • the unit of temperature is "degree”.
  • Humidity is relative humidity.
  • the first humidity is the humidity of the air before it flows into the inflow path 20F of the circulation path 20 from the outlet 20D of the water tank 3 and reaches the dehumidification device 23 , and the first temperature is the temperature of the air.
  • the second humidity is the humidity of the air before reaching the heating unit 22 after being dehumidified by the dehumidifying device 23 in the circulation path 20, and the second temperature is the temperature of the air.
  • the third humidity is the humidity of the air before being dehumidified by the dehumidifier 23 in the circulation path 20 and heated by the heating unit 22 and returned to the water tank 3 from the return port 20E, and the third temperature is the temperature of the air.
  • the control unit 55 operates the motor 8 at the end of the dehydration process or just before the start of the drying process to rotate the rotary drum 4 forward or reversely, and determines the rotary drum based on the current value, voltage value, and drive frequency of the motor 8 at this time. 4 The mass of laundry L in a wet state.
  • control part 55 performs the drying process by controlling at least the air blowing part 21 , the heating part 22 and the dehumidifying device 23 .
  • hot air is generated and circulated between the accommodating tub 5 and the circulation path 20 by the operation of the air blowing unit 21 and the heating unit 22 , and is spread to the laundry L in the rotating tub 4 .
  • the moisture in the laundry L is evaporated to become water vapor by heat exchange between the moisture in the laundry L and the hot air, so that drying of the laundry L is accelerated.
  • a voltage is applied to the charging part 24 and the collecting part 25 of the dehumidifying device 23 under the control of the control part 55 .
  • the control part 55 can agitate the laundry L by operating the motor 8 to rotate the rotary drum 4 during the drying process, so that the hot air can spread around the laundry L.
  • the control unit 55 controls the dehumidifier 23 according to the detection result of the temperature detection unit 51 , in other words, according to the drying state of the laundry L in the container 5 . Specifically, when the drying process starts (time t0 in FIG. 10 ), the first humidity, the second humidity and the third humidity are 65% and the first temperature, the second temperature and the third temperature are 20 degrees , when the ventilation unit 21 and the heating unit 22 operate and the hot air circulates, the humidity and temperature rise.
  • the control unit 55 controls the dehumidification device 23 through the entire period until the first temperature rises to a predetermined threshold value of 80 degrees.
  • the dehumidification performance of the dehumidifying device 23 is limited by the discharge current value of , for example, 50% or less.
  • the controller 55 dehumidifies by setting the discharge current value of the dehumidifier 23 to 0%, for example, in the initial period from when the blower 21 and the heating unit 22 are operated until the third temperature rises to the target temperature of 80 degrees. Device 23 is not working.
  • the control unit 55 increases the discharge current value of the dehumidifier 23 to 50% and maintains it at 50%.
  • control unit 55 may estimate the quality and type of the laundry L based on the temporal changes of the first temperature, the second temperature, and the third temperature, in particular, the temporal changes of the first temperature and the second temperature.
  • laundry L made of chemical fibers such as acrylic and polyester has a small amount of water retention, so that the first temperature and the second temperature increase rapidly.
  • the control unit 55 can also estimate the difference between the chemical fiber material and the cotton material in the laundry L in the rotary drum 4 based on the quality of the laundry L determined at the beginning of the washing process and the gradient of the first temperature and the second temperature. ratio.
  • the control unit 55 increases the discharge current value of the dehumidification device 23 to 100% higher than the predetermined value, and maintains the discharge current value at 100% also in the middle period thereafter. That is, the control unit 55 releases the restriction on the dehumidifying performance of the dehumidifying device 23 .
  • the middle stage the actual drying of the laundry L is started, and the dehumidification performance of the dehumidifying device 23 is sufficiently exerted, thereby also promoting dehumidification of the air after heat exchange with the moisture of the laundry L.
  • the temperature of the laundry L approaches the third temperature, which is the temperature of the hot air supplied into the container tub 5 .
  • the last stage of the initial stage that is, immediately before time t2 may be regarded as the middle stage.
  • the control part 55 may control the dehumidification apparatus 23 based on the detection value of the humidity detection part 50. For example, the control unit 55 may increase the discharge current value of the dehumidifier 23 to 100% when a period of time elapses after the initial first humidity rises to 100% (time t2 in FIG. 10 ). However, in a state where the humidity is 100%, since dew condensation occurs in the humidity detection unit 50 itself, there is a possibility that the humidity cannot be accurately detected. Therefore, the control unit 55 may optimally control the dehumidifier 23 based on the detection value of the humidity detection unit 50 and the detection value of the temperature detection unit 51 by using the temperature detection unit 51 together.
  • the control unit 55 stops the dehumidification device 23 by reducing the discharge current value of the dehumidification device 23 from the previous 100%, for example, stepwise, and finally to 0%. That is, at the end stage when the drying of the laundry L is gradually completed, the dehumidification device 23 gradually completes the task, and thus the dehumidification performance is limited.
  • the control unit 55 can efficiently dry the laundry L by operating the dehumidifier 23 appropriately at the initial stage, the middle stage, and the final stage, respectively.
  • the first temperature, the second temperature, and the third temperature are approximately constant at about 75 degrees, respectively.
  • the control unit 55 stops the heating unit 22 at the last time (time t4 in FIG. 10 ) after a predetermined time has elapsed since these temperatures became substantially constant, and performs a cooling down process.
  • the control part 55 may adjust this predetermined time based on the ratio of the chemical fiber material and the cotton material in the laundry L in the rotary drum 4 estimated as mentioned above. Accordingly, it is possible to prevent the laundry L from being excessively dried, insufficiently dried, and non-uniformly dried, and it is possible to improve the accuracy of sensing the completion status of drying and the end time of the drying process.
  • control unit 55 continues the operation of the blower unit 21 in a state in which the heating unit 22 is stopped. Thereby, the temperature of the laundry L and the door 10 in the container tub 5 is lowered by the circulation of cold air. Accordingly, the user can quickly reach into the container tub 5 and take out the laundry L after the drying process.
  • the air that absorbs moisture from the laundry L and flows out of the container tub 5 to the outflow path 20G is dehumidified by the dehumidifying device 23 .
  • the electrifying part 24 electrifies the moisture contained in the air flowing through the outflow path 20G
  • the collecting part 25 collects the moisture through the third electrode 43 (see FIG. 6)
  • the exhaust path 26 collects the collected moisture The water is discharged to the outside of the outflow passage 20G. In this way, it is possible to provide the washer-drying machine 1 using the new dehumidifier 23 that collects and electrifies moisture.
  • the dehumidification device 23 having a structure in which water is charged and collected can dehumidify the air at a high temperature, thereby suppressing a significant drop in the temperature of the air flowing through the outflow passage 20G immediately after dehumidification.
  • the heating part 22 can reheat the dehumidified air rapidly to the temperature required for drying the laundry L. Therefore, the operation time of the heating unit 22 can be shortened, so that time reduction and energy saving in the drying process can be achieved.
  • the dehumidifier 23 can not only charge water, but also charge and collect foreign matter in the air, so that the inside of the circulation path 20 can be prevented from being contaminated by foreign matter.
  • the first electrode 31 and the second electrode 32 of the electrification part 24 follow the flow of the air so as not to hinder the air flowing through the outflow path 20G (thick dashed arrows in FIGS. 3 and 6 )
  • the interval d (refer to FIG. 2 ) between the adjacent electrodes of the first electrode 31 and the second electrode 32 is ensured as wide as, for example, 2 mm or more.
  • the third electrode 43 and the fourth electrode 44 of the collecting part 25 Therefore, it is possible to reduce the pressure loss in the entire circulation path 20 including the outflow path 20G.
  • the second electrode 32 of the electrification part 24 performs corona discharge, thereby generating ozone, and the ozone is dispersed to the laundry L along with the air in the circulation path 20, so that not only the laundry can be L drying, can also be deodorized or sterilized by ozone.
  • the control part 55 may adjust the generation amount of ozone by controlling the charging part 24.
  • the control unit 55 may control not only the air blowing unit 21 , the heating unit 22 , and the dehumidifying device 23 , but also the water supply valve 15 and the drain valve 17 . Specifically, during the drying process, the control unit 55 opens the water supply valve 15 with the drain valve 17 closed to store water in the water tub 3 until the water level in the water tub 3 detected by the water level detection unit 14 reaches a specific rotational speed. A predetermined water level U (refer to FIG. 1 ) on the lower side Z2 of the cylinder 4 is provided. In this case, the air in the container 5 can be dehumidified not only by the dehumidifier 23 but also by the water stored in the water tank 3, so that the entire washer-dryer 1 can exhibit maximum dehumidification performance.
  • the dehumidification device 23 can improve the dehumidification performance by effectively charging and collecting the moisture in the air.
  • the water since the water is stored in the water tub 3 to such an extent that it does not come into contact with the rotary drum 4, even if the rotary drum 4 is rotated during the drying process as described above, the water stored in the water tub 3 does not splash and wet the laundry L. .
  • a water temperature sensor (not shown) that detects the water temperature in the water tub 3 may be provided, and the control unit 55 may adjust the amount of water to be stored in the water tub 3, that is, the water storage amount, according to the laundry based on the detection value of the water temperature sensor.
  • the type and amount of L are adjusted optimally.
  • the discharge passage 26 of the dehumidification facility 23 is connected to the upstream portion 7A of the drainage passage 7 (see FIG. 1 ).
  • the upstream portion 7A of the drain passage 7 accumulates water.
  • the air in the container 5 can be dehumidified not only by the dehumidifier 23 but also by the water stored in the water tank 3 , so that the entire washer-dryer 1 can exhibit maximum dehumidification performance.
  • the water discharged from the dehumidification device 23 can be effectively used for dehumidification.
  • the charging part 24 can not only charge the moisture, but also collect the charged moisture by the first electrode 31 . Therefore, the charging part 24 also functions as a collecting part, and the collecting part 25 functions as an additional collecting part that collects the moisture that cannot be collected by the charging part 24 . When the charging part 24 has sufficient moisture collecting performance, the collecting part 25 may be omitted.
  • the other end portion 26B of the discharge passage 26 of the dehumidification device 23 may be connected to the downstream portion 7B of the drain passage 7 as in the first modification shown in FIG. 11 .
  • at least the other end portion 26B may be arranged in the outflow passage 20G of the circulation passage 20 as in the second modification shown in FIG. 12 .
  • the water collected by the dehumidifier 23 and flowing through the discharge passage 26 flows through the outflow passage 20G, flows into the container cylinder 5 from the extraction port 20D, and is discharged from the drain passage 7 to the outside of the machine.
  • the water flowing into the container 5 through the discharge passage 26 and the outflow passage 20G in this way can remove dirt such as foam and dust in the outflow passage 20G and the container cylinder 5 .
  • the other end portion 26B may be connected to the back wall 3B of the water tank 3 as in the third modification shown in FIG. 13 .
  • the dehumidifier 23 may include the mist supply part 60 that supplies the fine mist into the outflow passage 20G.
  • the mist supply part 60 includes at least: a water flow path 61 branched from an upstream portion of the water supply path 6 that is closer to the faucet than the water supply valve 15; a nozzle 62 mounted on the tip of the flow water path 61; and a water flow valve 63 provided in the flow water path 61 halfway through.
  • the nozzle 62 is arrange
  • the nozzle 62 has the spray port 62A of mist.
  • the water flow valve 63 is, for example, a solenoid valve, and is opened and closed under the control of the control unit 55 .
  • the open water flow valve 63 opens the flow passage 61 .
  • the tap water from the faucet flows through the outflow passage 20G, and is sprayed into the outflow passage 20G in mist form from the injection port 62A of the nozzle 62 .
  • the water temperature of the tap water is 20 degrees, so the fog is a higher temperature.
  • the water flow valve 63 in the closed state is in a state in which the water flow passage 61 is closed, and the supply of mist is stopped.
  • the mist supplied by the mist supply unit 60 into the outflow passage 20G from the injection port 62A of the nozzle 62 makes the water charged by the charging unit 24 into water droplets of a size that is easily collected by the collecting unit 25 , so that the collecting unit 25 can efficiently to collect this moisture.
  • the particle size of the mist is about 2 ⁇ m
  • the mist is in contact with the charged moisture in a contact area approximately 2500 times larger than that of water droplets having a size of about 5 mm per unit weight.
  • the charged water is rapidly deprived of heat to form water droplets, and a plurality of water droplets aggregate to form large water droplets.
  • the amount of water used for the mist in the mist supply unit 60 is extremely small compared to the amount of water used in conventional water-cooled dehumidifiers.
  • the mist supply unit 60 may generate mist only by the pressure of tap water, or may generate mist by using an ultrasonic vibrator.
  • a water pressure regulating valve (not shown) may be provided between the nozzle 62 and the water flow valve 63 in the water flow passage 61 .
  • the control unit 55 controls the water pressure adjustment valve to adjust the water pressure in the flow channel 61, whereby the amount of mist sprayed from the spray port 62A can be adjusted.
  • the mist supply part 60 may include the pump 64 which pressurizes the tap water which flows through the flow water path 61. Thereby, the momentum of the mist sprayed from the injection port 62A can be enhanced, and the momentum can be adjusted.
  • the spray port 62A is arranged toward the lower side Z2 in FIG.
  • part 21 heating part 22 , dehumidification equipment 23 .
  • the inside of the outflow passage 20G can also be cleaned by the mist sprayed into the outflow passage 20G.
  • the wrinkle of the laundry L can be alleviated by spreading the hot air which becomes high humidity due to the mist to the laundry L in the container tub 5 . Therefore, it is also possible to employ a configuration in which the injection ports 62A are arranged toward the upper side Z1.
  • the control unit 55 preferably controls not only the charging unit 24 and the collecting unit 25 but also the mist supplying unit 60 based on the detection results of the humidity detecting unit 50 and the temperature detecting unit 51 and the like. Thereby, the mist of the quantity or momentum suitable for the humidity and temperature in the drying process can be supplied into the outflow path 20G.
  • the drying unit 9 may further include an exhaust passage 20H that branches from the circulation passage 20 and communicates with the outside of the washer-drying machine 1 . That is, the outflow passage 20G of the circulation passage 20 is branched into the connection passage 20I and the exhaust passage 20H which are connected to the inflow passage 20F as a continuation of the circulation passage 20 .
  • a portion of the exhaust passage 20H that communicates with the outside of the machine is an exhaust port 20J formed in the case 2 .
  • the inflow passage 20F may also communicate with the outside of the washer-dryer 1 . In this case, the portion of the inflow passage 20F that communicates with the outside of the machine is the intake port 20K formed in the housing 2, and is disposed on the opposite side to the return port 20E.
  • An exhaust valve 70 for opening and closing the exhaust port 20J is provided in the exhaust passage 20H, and an intake valve 71 for opening and closing the intake port 20K is provided in the inflow passage 20F.
  • the exhaust valve 70 and the intake valve 71 are regulating valves, and their opening and closing are controlled by the control unit 55 .
  • the control unit 55 can adjust the respective opening degrees of the exhaust valve 70 and the intake valve 71 .
  • the exhaust valve 70 and the intake valve 71 are respectively closed when the opening degree is zero.
  • the control unit 55 increases the opening degree and opens the exhaust valve 70, the exhaust port 20J is opened, so that the air in the exhaust passage 20H is discharged to the outside of the machine.
  • the intake port 20K is opened, so that outside air can flow into the inflow passage 20F.
  • a filter (not shown) that captures foreign matter contained in the outside air may be provided in the intake port 20K.
  • the switching part 72 is provided in the part connected with the inflow path 20F among the connection paths 20I.
  • the switching unit 72 is constituted by an openable and closable regulating valve or the like.
  • the control unit 55 opens and closes the switching unit 72 by adjusting the opening degree of the switching unit 72 .
  • the switching unit 72 is in a closed state when the opening degree is zero.
  • the control unit 55 increases the opening degree to open the switching unit 72, the inflow passage 20F communicates with the connection passage 20I.
  • the blower 21 operates in this state, the air in the outflow passage 20G flows through the connection passage 20I to the inflow passage 20F and continues to flow through the circulation passage 20, and thus circulates as described above. Therefore, the air can be reused for drying the laundry L in the container tub 5 .
  • the switching portion 72 when the switching portion 72 is closed, the inflow passage 20F and the connection passage 20I are cut off, so that the air in the outflow passage 20G flows to the exhaust passage 20H. In this way, the switching unit 72 causes the air in the outflow passage 20G to flow to the exhaust passage 20H or to the connection passage 20I under the control of the control unit 55 .
  • the air that has flowed out from the housing cylinder 5 to the outflow passage 20G is caused to flow to the exhaust passage 20H, so that the air can be discharged to the outside of the machine. Since the air is in a state of being dehumidified by the dehumidifier 23, even if it is discharged to the outside of the machine, it does not cause dew condensation or mold generation on surrounding walls, furniture, and the like.
  • the control unit 55 may be controlled.
  • the unit 55 deactivates the dehumidifying device 23 during the drying process, thereby discharging the high-humidity air from the exhaust passage 20H to the outside of the machine, and humidifying the outside of the machine.
  • the control unit 55 may suppress the heating unit. 22 to deliberately extend the time of the drying process.
  • the ratio of the air discharged to the outside of the machine and the circulating air among the air flowing out of the outflow passage 20G can also be adjusted by the switching unit 72 .
  • the control unit 55 adjusts the opening degree of the switching unit 72 to increase the ratio of circulating air in order to increase the temperature of the hot air supplied into the container 5 as quickly as possible.
  • the control unit 55 adjusts the opening degree of the switching unit 72 so that the The ratio of air exhausted outside the machine is reduced.
  • the control unit 55 may adjust the opening degree of the switching unit 72 to increase the ratio of the air discharged to the outside.
  • the control unit 55 closes the switching unit 72 to discharge all the air to the outside of the machine, so that the cold outside air is unidirectionally directed from the intake port 20K to the exhaust port 20J. flow.
  • control unit 55 may adjust the switching unit 72 based on the detection results of the humidity detection unit 50, the temperature detection unit 51, and the external sensor (not shown). of opening.
  • the control unit 55 may adjust the switching unit 72 based on the detection results of the humidity detection unit 50, the temperature detection unit 51, and the external sensor (not shown). of opening.
  • the inflow channel 20F and the outflow channel 20G may be separated by omitting the connection channel 20I.
  • the air blower 21 when the air blower 21 is activated, the outside air flows into the inflow passage 20F from the intake port 20K, is heated by the heating portion 22 and becomes hot air, and the hot air is spread from the return port 20E to the laundry L in the storage tub 5 Then, it flows out from the extraction port 20D to the outflow passage 20G, and is discharged to the outside of the machine from the exhaust port 20J via the exhaust passage 20H. That is, in the sixth modification, the air is not circulated but always flows in one direction.
  • the charging part 24 and the collecting part 25 may be built in the blower part 21 .
  • the blower part 21 in this case includes a casing 80 that accommodates the rotating blade 21A together with the charging part 24 and the collecting part 25 .
  • the casing 80 includes a cylindrical portion 80A flattened in the vertical direction Z, a hollow inflow portion 80B disposed on the cylindrical portion 80A, and a hollow outflow portion 80C extending tangentially from the outer peripheral portion of the cylindrical portion 80A.
  • the rotating blade 21A is, for example, a turbo fan (the fan in FIG. 18 ).
  • the inner space of the inflow portion 80B is in a state in which the inflow port 80D on the ceiling wall of the cylindrical portion 80A located just above the rotating blade 21A communicates with the inner space of the cylindrical portion 80A.
  • the inner space of the outflow portion 80C is in a state of communicating with the inner space of the cylindrical portion 80A via an outflow port 80E formed at one location on the circumference of the peripheral wall of the cylindrical portion 80A.
  • Such a case 80 constitutes the midway portion 20A of the circulation path 20 . Therefore, when the rotating blade 21A is rotated by the operation of the blower 21, the air in the intermediate portion 20A flows from the inflow portion 80B through the inflow port 80D into the rotating blade 21A in the cylindrical portion 80A as indicated by the broken line arrow in FIG. 17 . The inner side is pushed toward the radially outer side of the rotating blade 21A, and flows out from the outflow port 80E to the outflow portion 80C.
  • the charging portion 24 is provided in the inflow portion 80B, and the collecting portion 25 is arranged to be curved in an arc shape along the inner peripheral portion of the cylindrical portion 80A.
  • the moisture contained in the air flowing through the inflow portion 80B is charged by the charging portion 24 .
  • the inside of the inflow portion 80B is in a negative pressure state with the operation of the blower 21, the temperature of the air flowing through the inflow portion 80B is lowered, and the moisture contained in the air is easily turned into water droplets.
  • the water droplets just before are mixed with the moisture in the air by the centrifugal force generated by the rotation of the rotating blades 21A of the air blower 21 , so that the moisture contained in the air is more likely to become water droplets.
  • the moisture that is not collected by the electrification portion 24 is efficiently collected by the collection portion 25 in the cylindrical portion 80A.
  • the water collected by the charging part 24 and the collecting part 25 flows through the discharge passage 26 and is transferred to the water tank 3 and the water discharge passage 7 .
  • the filter 81 which catches foreign matter, such as dust and dust from the air which flows in the inflow part 80B, may be provided in the inflow part 80B on the upstream side farther from the inflow port 80D than the electrification part 24.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

一种烘干机，包括：容纳筒(5)，容纳洗涤物(L)；流入路(20F)，使空气流入容纳筒(5)内；流出路(20G)，使空气从容纳筒(5)流出；送风部(21)，使空气依次流过流入路(20F)、容纳筒(5)以及流出路(20G)；加热部(22)，对从流入路(20F)向容纳筒(5)流入的空气进行加热；以及除湿设备(23)，对流过流出路(20G)内的空气进行除湿。除湿设备(23)包括：带电部(24)，使流过流出路(20G)内的空气中所含的水分带电；收集部(25)，收集通过带电部(24)而被带电了的水分；以及排出路(26)，将由收集部(25)收集到的水分向流出路(20G)之外排出。

Description

烘干机 技术领域
本发明涉及一种烘干机。
背景技术
下述专利文献1所记载的洗干一体机包括：洗涤筒，容纳衣物；循环风路，具有与洗涤筒连通的一端和另一端；鼓风机和加热器，设于循环风路；除湿部，设有使循环风路的中途的风路截面变窄的山形部；以及热交换水路，与循环风路连接。在洗干一体机的烘干运转中，洗涤筒内的潮湿空气被鼓风机取出至循环风路。此时，热交换用的水从热交换水路被供给至循环风路并在除湿部中与空气进行热交换，由此对该空气进行除湿。除湿后的空气由加热器加热后回流至洗涤筒内。通过这样的空气的循环，洗涤筒内的衣物被烘干。
烘干机中用于对潮湿空气进行除湿的除湿设备通常为专利文献1那样的使用了热交换用的水的水冷式、代替水而使用外部空气的气冷式、组合了水和外部空气的混合式。在这样的除湿设备中，循环的空气的温度通过除湿时的热交换而降低，因此由加热器进行的空气的再加热费时。由此，加热器的功耗变多，烘干运转的时间变长。而且，为了使循环的空气与水、外部空气多多地接触来提高除湿效果，需要通过专利文献1的山形部等来复杂地形成循环风路内，由此，循环风路内的压力损耗变大。为了解决压力损耗的问题，需要高输出的鼓风机，但这样的鼓风机工作时会产生大的噪音，有成本上升、烘干机大型化的隐患。此外，若除湿设备是水冷式，则需要大量的热交换的水，若除湿设备是气冷式，则除湿性能根据外部空气的温度而变动，因此难以得到稳定的除湿性能。
现有技术文献
专利文献
专利文献1：日本特开2009－34258号公报
发明内容
发明所要解决的问题
本发明是鉴于该背景而完成的，其目的在于提供一种使用了新的除湿设备的烘干机。
用于解决问题的方案
本发明是一种烘干机，包括：容纳筒，容纳烘干对象物；流入路，使空气流入所述容纳筒内；流出路，使空气从所述容纳筒流出；送风部，使空气依次流过所述流入路、所述容纳筒以及所述流出路；加热部，对从所述流入路向所述容纳筒流入的空气进行加热；以及除湿设备，对流过所述流出路内的空气进行除湿，所述除湿设备包括：带电部，使流过所述流出路内的空气中所含的水分带电；收集部，收集通过所述带电部而被带电了的水分；以及排出路，将由所述收集部收集到的水分向所述流出路之外排出。
此外，本发明的特征在于，所述容纳筒包括可蓄水的水筒，所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；以及排水阀，对所述排水路进行开闭，所述排出路连接于所述排水路中的所述排水阀与所述水筒之间的上游部。
此外，本发明的特征在于，所述容纳筒包括可蓄水的水筒，所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；以及排水阀，对所述排水路进行开闭，所述流出路与所述水筒连接，所述排出路配置于所述流出路内。
此外，本发明的特征在于，所述烘干机包括：控制部，通过对所述送风部、所述加热部以及所述除湿设备进行控制来执行将所述容纳筒内的烘干对象物烘干的烘干运转；以及温度检测部，检测从所述流入路到所述流出路进行流动的空气的温度，在所述烘干运转中，所述控制部根据所述温度检测部的检测结果来控制所述除湿设备。
此外，本发明的特征在于，所述流出路分支为与所述烘干机的机外连通的排气路和与所述流入路连接的连接路，所述烘干机包括：切换部，通过所述控制部的控制来使所述流出路内的空气流向所述排气路或流向所述连接路。
此外，本发明的特征在于，所述除湿设备包括：雾供给部，向所述流出路内供给雾。
此外，本发明的特征在于，所述容纳筒包括：水筒，可蓄水；以及旋转筒，在所述水筒内配置为可旋转，容纳烘干对象物，所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；排水阀，对所述排水路进行开闭；供水路，与所述水筒连接，向所述水筒供水；供水阀，对所述供水路进行开闭；控制部，通过对所述送风部、所述加热部、所述除湿设备、所述排水阀以及所述供水阀进行控制来执行将所述旋转筒内的烘干对象物烘干的烘干运转；以及水位检测部，检测所述水筒内的水位，在所述烘干运转中，所述控制部在关闭了所述排水阀的状态下打开所述供水阀来向所述水筒内蓄水，直到所述水位检测部所检测的所述水筒内的水位达到比所述旋转筒靠下侧的规定水位。
发明效果
根据本发明，在烘干机的烘干运转中，由加热部加热后的空气从流入路流入容纳筒，将容纳筒内的烘干对象物烘干。从容纳筒流出至流出路的空气由除湿设备除湿。在除湿设备中，带电部使流过流出路内的空气中所含的水分带电，收集部收集带电的水分，排出路将收集到的水分向流出路之外排出。像这样，能提供一种使用了使水分带电后进行收集的新的除湿设备的烘干机。
此外，根据本发明，除湿设备的排出路连接于从水筒延伸的排水路中的排水阀与水筒之间的上游部。在该情况下，在排水阀关闭的状态下，当由除湿设备收集到的水分流过排出路时，排水路的上游部会蓄水。因此，不仅通过除湿设备，还能通过蓄于排水路的上游部的水来对容纳筒内的空气进行除湿，因此能使烘干机整体发挥最大限度的除湿性能。
此外，根据本发明，除湿设备的排出路配置于使空气从容纳筒流出的流出路内。在该情况下，由除湿设备收集并流过排出路的水分流过流出路而流入容纳筒，从排水路向机外排出。像这样，能通过流过排出路和流出路而流入容纳筒的水来去除流出路和容纳筒内的泡沫、灰尘等污垢。
此外，根据本发明，在烘干运转中，根据从流入路到流出路进行流动的空气的温度，换言之根据容纳筒内的烘干对象物的烘干状况来控制除湿设备，因 此能使除湿设备适当地工作来高效地将烘干对象物烘干。
此外，根据本发明，只要使从容纳筒流出至流出路的空气流向排气路就能将其向机外排出。另一方面，只要使从容纳筒流出至流出路的空气流向连接路，就能通过使该空气返回至流入路来使其循环，由此将其再利用于容纳筒内的烘干对象物的烘干。此外，也能通过切换部来调整流出至流出路的空气当中向机外排出的空气与循环的空气的比率。
此外，根据本发明，雾供给部供给至流出路内的雾会使通过带电部而被带电的水分成为对收集部而言容易收集的大小的水滴，因此收集部能高效地收集该水分。
此外，根据本发明，在烘干运转中，容纳筒的水筒内可蓄水。在该情况下，不仅通过除湿设备，还能通过蓄于水筒内的水来对容纳筒内的空气进行除湿，因此能使烘干机整体发挥最大限度的除湿性能。此外，蓄于水筒内的水不与旋转筒接触，因此能防止在烘干运转中旋转筒旋转时水筒内的水飞溅而弄湿烘干对象物。
附图说明
图1是本发明的一个实施方式的烘干机的示意性纵剖右视图。
图2是构成烘干机的除湿设备的带电部的俯视图。
图3是图2的A－A向视剖视图。
图4是图2的B－B向视剖视图。
图5是构成除湿设备的收集部的俯视图。
图6是图5的C－C向视剖视图。
图7是图5的D－D向视剖视图。
图8是从图6中抽出一个电极的图。
图9是表示烘干机的电气结构的框图。
图10是表示烘干机的烘干运转的时间图。
图11是本发明的第一变形例的烘干机的示意性纵剖右视图。
图12是本发明的第二变形例的烘干机的示意性纵剖右视图。
图13是本发明的第三变形例的烘干机的示意性纵剖右视图。
图14是本发明的第四变形例的烘干机的示意性纵剖右视图。
图15是本发明的第五变形例的烘干机的示意性纵剖右视图。
图16是本发明的第六变形例的烘干机的示意性纵剖右视图。
图17是本发明的第七变形例的烘干机中的主要部分的示意性纵剖右视图。
图18是图17的E－E向视剖视图。
附图标记说明
1：洗干一体机；3：水筒；4：旋转筒；5：容纳筒；6：供水路；7：排水路；7A：上游部；14：水位检测部；15：供水阀；17：排水阀；20F：流入路；20G：流出路；20H：排气路；20I：连接路；21：送风部；22：加热部；23：除湿设备；24：带电部；25：收集部；26：排出路；51：温度检测部；55：控制部；60：雾供给部；72：切换部；L：洗涤物；U：规定水位；Z2：下侧。
具体实施方式
以下，参照附图对本发明的实施方式进行具体说明。图1是本发明的烘干机的一个实施方式的洗干一体机1的示意性纵剖右视图。将图1的与纸面正交的方向称为洗干一体机1的左右方向X，将图1中的左右方向称为洗干一体机1的前后方向Y，将图1中的上下方向称为洗干一体机1的上下方向Z。左右方向X当中，将图1的纸面的里侧称为左侧X1，将图1的纸面的表侧称为右侧X2。前后方向Y当中，将图1中的左侧称为前侧Y1，将图1中的右侧称为后侧Y2。上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。左右方向X和前后方向Y包含于横向。横向既可以是水平方向H，也可以是相对于水平方向稍微倾斜的大致水平方向。
在本实施方式中，作为洗干一体机1，以滚筒式的洗干一体机为主要对象，但洗干一体机1也可以是立式的洗干一体机。此外，本发明也以省略洗涤功能 而仅执行烘干运转的烘干机为对象。此外，在本实施方式中，洗干一体机1的烘干对象物是衣物等洗涤物L，但也可以是鞋、餐具等。洗干一体机1包括：箱体2；容纳筒5，配置于箱体2内，包括水筒3和旋转筒4，容纳洗涤物L；供水路6和排水路7，与水筒3连接；马达8，使旋转筒4旋转；以及烘干单元9，将洗涤物L烘干。
箱体2形成为箱状。箱体2的前表面2A例如是垂直面。在前表面2A形成有使箱体2的内外连通的开口2B。在前表面2A设有对开口2B进行开闭的门10。
水筒3由从箱体2的底壁2C向上侧Z1延伸的减振器11支承，由弹簧(未图示)悬吊。由此，包括水筒3的整个容纳筒5被弹性支承。需要说明的是，减振器11仅在图1中图示出。水筒3具有：圆筒状的圆周壁3A，以沿水平方向H在前后方向Y上延伸的轴线J为中心；圆盘状的背面壁3B，从后侧Y2堵住圆周壁3A的中空部分；以及环状的正面壁3C，与圆周壁3A的前端缘相连。
在背面壁3B的中心形成有沿轴线J在前后方向Y上贯通背面壁3B的贯通孔3D。正面壁3C具有：圆环状的第一部3E，从圆周壁3A的前端缘向轴线J侧突出；圆筒状的第二部3F，从第一部3E的内周缘向前侧Y1突出；以及圆环状的第三部3G，从第二部3F的前端缘向轴线J侧突出。在第三部3G的内侧形成有从前侧Y1与圆周壁3A的中空部分连通的出入口3H。出入口3H处于从后侧Y2与箱体2的开口2B对置并连通的状态。
旋转筒4是具有与轴线J一致的中心轴线的圆筒体，比水筒3小一圈。在本实施方式中，旋转筒4以中心轴线沿着水平方向H的方式在水筒3内水平地配置，但也可以以中心轴线相对于水平方向H倾斜的方式倾斜地配置。旋转筒4具有：圆筒状的圆周壁4A，与水筒3的圆周壁3A同轴地配置；圆盘状的背面壁4B，从后侧Y2堵住圆周壁4A的中空部分；以及圆环状的环状壁4C，从圆周壁4A的前端缘向轴线J侧突出。在圆周壁4A和背面壁4B形成有多个贯通孔4D。在旋转筒4的背面壁4B的中心设有沿轴线J向后侧Y2延伸的支承轴12。支承轴12的后端部穿过水筒3的背面壁3B的贯通孔3D而配置于比背面壁3B靠后侧Y2处。
在环状壁4C的内侧形成有从前侧Y1与圆周壁4A的中空部分连通的出入 口4E。出入口4E处于从后侧Y2与水筒3的出入口3H及箱体2的开口2B对置并连通的状态。出入口3H和出入口4E与开口2B一起由门10统一开闭。洗干一体机1的用户经由敞开的开口2B、出入口3H以及出入口4E使洗涤物L出入于旋转筒4内。在门10上设有在门10关闭了开口2B、出入口3H以及出入口4E时与水筒3的正面壁3C的第三部3G紧贴的衬垫13。
供水路6具有与水龙头(未图示)连接的一端(未图示)和在箱体2内与水筒3的正面壁3C的第二部3F的例如上部连接的另一端，在该另一端设有从上侧Z1面向水筒3内的供水口6A。供水时，来自水龙头的自来水通过供水路6从供水口6A供给至水筒3内。水筒3内蓄有自来水或在自来水中溶解有洗涤剂的洗涤剂水。以下，有时将自来水和洗涤剂水简称为“水”。水筒3内的水经由旋转筒4的贯通孔4D在水筒3与旋转筒4之间往来。因此，水筒3内的水位与旋转筒4内的水位一致。
洗干一体机1包括：水位检测部14，检测水筒3内的水位；以及可开闭的供水阀15，设于供水路6的中途。作为水位检测部14，能采用浮子式水位传感器、压电式传感器、电极传感器、磁传感器、超声波传感器、光传感器等。本实施方式中的水位检测部14是内置隔膜(未图示)的压电式传感器，经由软管16与水筒3连接。水位检测部14通过隔膜来测定随着水筒3内的水位的变化而变动的软管16内的压力，由此检测水筒3内的水位。需要说明的是，水位检测部14仅在图1和图9中图示出。
打开状态的供水阀15通过打开供水路6来允许向水筒3即容纳筒5供水。关闭状态的供水阀15通过关闭供水路6来停止向容纳筒5供水。
排水路7与水筒3的下端部例如圆周壁3A的下端部连接。水筒3内的水从排水路7被排出箱体2之外即机外。洗干一体机1包括设于排水路7的中途的可开闭的排水阀17。打开状态的排水阀17通过打开排水路7来允许水筒3的排水。关闭状态的排水阀17通过关闭排水路7来停止排水。将排水路7中的排水阀17与水筒3之间的区域称为上游部7A，将比排水阀17远离水筒3的区域称为下游部7B。
马达8在箱体2内配置于水筒3的背面壁3B的后侧Y2。作为马达8的一个例子，能采用DD(Direct Drive：直驱)马达。马达8与设于旋转筒4的支承 轴12连结。马达8所产生的转矩被传递至支承轴12，旋转筒4随着支承轴12绕轴线J旋转。需要说明的是，也可以在马达8与支承轴12之间设置将马达8的转矩向支承轴12传递或切断的离合机构(未图示)。
烘干单元9包括：循环路20和送风部21，用于使水筒3内的空气循环；加热部22，加热循环的空气；以及除湿设备23，对流过循环路20内的空气进行除湿。
循环路20是在箱体2内例如配置于水筒3的上侧Z1的流路。循环路20具有：中途部分20A，在前后方向Y上延伸；后部分20B，从中途部分20A的后端向下侧Z2延伸后向前侧Y1弯折；以及前部分20C，从中途部分20A的前端向下侧Z2延伸。在后部分20B的下端部的前端形成有取出口20D。取出口20D与水筒3的背面壁3B的下部连接，从后侧Y2与水筒3内连通。在前部分20C的下端形成有返回口20E。返回口20E与水筒3的正面壁3C的第二部3F的上端部连接，从上侧Z1与水筒3内连通。
送风部21是所谓的鼓风机，包括配置于循环路20的中途部分20A内的旋转叶片21A和使旋转叶片21A旋转的马达21B(参照后述的图17)。当旋转叶片21A旋转时，如粗虚线箭头所示，容纳筒5内的空气即水筒3内和旋转筒4内的空气从取出口20D被取出至循环路20内，然后从返回口20E返回至水筒3内。由此，水筒3内的空气以依次流过水筒3和循环路20的方式进行循环。
也可以是，将循环路20中的从返回口20E到送风部21的部分称为使空气流入容纳筒5内的流入路20F，将循环路20中的从取出口20D到送风部21的部分称为使空气从容纳筒5流出的流出路20G。流入路20F在返回口20E处与水筒3连接，流出路20G在取出口20D处与水筒3连接。循环的空气依次流过流入路20F、容纳筒5以及流出路20G。
加热部22是热泵中的热交换器或普通的加热器等，至少一部分设于循环路20内。加热部22中的设于循环路20内的部分具有散热部22A。在本实施方式中，散热部22A在循环路20内配置于比送风部21的旋转叶片21A靠近返回口20E的下游侧，但也可以配置于比旋转叶片21A远离返回口20E的上游侧。无论如何，旋转叶片21A和散热部22A配置于流入路20F内。当加热部22工作时，散热部22A变为高温，因此流过循环路20内的空气在经过散热部22A的 周围时会被加热而成为热风，然后流入容纳筒5。像这样，加热部22对从流入路20F向容纳筒5流入的空气进行加热。
除湿设备23包括：带电部24，使流过循环路20内、详细而言流过流出路20G内的空气中所含的水分带电；收集部25，收集通过带电部24而被带电了的水分；以及排出路26，将由收集部25收集到的水分向循环路20之外排出。带电部24和收集部25在循环路20内配置于比送风部21和加热部22靠近取出口20D的上游侧的区域即流出路20G内。
图2是带电部24的俯视图。带电部24包括：中空的壳体30；多个第一电极31，配置于壳体30内；以及第二电极32，配置于相邻的第一电极31之间。
壳体30的一个例子是由在上下方向Z上延伸的四个的纵壁30A构成的长方体。由这些纵壁30A包围的空间是壳体30的内部空间30B。在壳体30形成有被四个纵壁30A的下端包边的矩形的入口30C和被四个纵壁30A的上端包边的矩形的出口30D(也参照图3)。内部空间30B从入口30C向下侧Z2敞开，从出口30D向上侧Z1敞开。壳体30构成循环路20中的流出路20G、详细而言后部分20B中的在上下方向Z上延伸的部分的一部分(参照图1)。壳体30的内部空间30B、入口30C以及出口30D构成流出路20G的内部空间中的在上下方向Z上延伸的区域的一部分。
图3是图2的A－A向视剖视图。在本实施方式中，流过循环路20内的空气在壳体30内从入口30C前往出口30D而上升(参照粗虚线箭头)。在四个纵壁30A中，一对纵壁30AA以与剩余的一对纵壁30AB正交的方式配置。一对纵壁30AA中的一方的下端部包括：贯通孔30E；斜坡30F，从贯通孔30E的下端向内部空间30B突出；以及引导箱(guide box)30G，从壳体30之外覆盖贯通孔30E。贯通孔30E、斜坡30F以及引导箱30G在一对纵壁30AB的对置方向P上为长边。贯通孔30E和斜坡30F以在内部空间30B中遍及对置方向P的整个区域的方式设置。斜坡30F以从贯通孔30E向斜上侧倾斜的方式配置，斜坡30F的上表面30H也倾斜。在上表面30H中的最远离贯通孔30E的上端部设有向上侧Z1突出的突出部30I。
引导箱30G的内部空间30J处于与贯通孔30E连通的状态。图4是图2的B－B向视剖视图。引导箱30G中的从下侧Z2划分出内部空间30J的底面30K 经由贯通孔30E与斜坡30F的上表面30H的下端连接。底面30K例如是随着趋向对置方向P中的一个方向而逐渐下降的倾斜面，在其下端形成有排出口30L。在引导箱30G的下表面设有以包围排出口30L的状态向下侧Z2突出的圆筒状的连结部30M。
第一电极31是在对置方向P上薄的板状的对置电极，例如由不锈钢或铝形成，由此具有导电性。在本实施方式中，作为一个例子，五片第一电极31在壳体30的内部空间30B中以在对置方向P上等间隔地排列的方式配置(参照图2)。各第一电极31通过使其上端部中的变宽一级的宽幅部31A卡合于壳体30的出口30D的台阶部30N而被定位在内部空间30B(参照图3)。各第一电极31中的壳体30的入口30C侧的下端缘31B以朝着纵壁30AA的贯通孔30E逐渐下降的方式直线状地倾斜。各第一电极31的下端缘31B中的贯通孔30E侧的下端部配置于斜坡30F的正上方，在上下方向Z上配置于与贯通孔30E相同的位置。
第二电极32是由金属丝构成的放电电极，例如由钨形成，由此具有导电性，具有与第一电极31相反的极性。第二电极32逐一配置于相邻的第一电极31之间，架设于一对纵壁30AA之间(参照图2和图3)。第二电极32以不与第一电极31接触的状态，在比第一电极31的下端缘31B靠上侧Z1的位置以与下端缘31B平行的方式直线状地倾斜(参照图3)。
在本实施方式中，第一电极31的极性为接地侧的负极，第二电极32的极性为正极。当从设于洗干一体机1的电源(未图示)向带电部24施加了电压时，会向第一电极31与第二电极32之间施加几kV～几十kV的高电压，由此第二电极32放电。如此，第二电极32周围的空气成为等离子体状态，该空气中的分子阳离子化并向第一电极31移动。由此，第一电极31与第二电极32之间会流过几十μA的电流。并且，流过第一电极31与第二电极32之间的空气中所含的水分由于与阳离子、电子碰撞而使正极带电。正极被带电了的水分被吸向负极的第一电极31，被第一电极31收集。由此，第一电极31与第二电极32之间的空气被除湿。
被第一电极31收集的水分在第一电极31的表面成为水滴，因自重而沿着第一电极31的下端缘31B的倾斜流动(参照图3的箭头Q1)，落到斜坡30F的上表面30H上。落到上表面30H上的水分沿着上表面30H的倾斜流下而流入 引导箱30G的内部空间30J(参照图3的箭头Q2)，沿着引导箱30G的底面30K的倾斜流下而从排出口30L流入连结部30M内(参照图4的箭头Q3)。
像这样，在本实施方式中，第一电极31具有与带电的水分相反的极性而收集该水分。需要说明的是，也可以采用第一电极31的极性为正极且第二电极的极性为负极的相反结构，而该结构中也是第二电极32放电而第一电极31集水。需要说明的是，在本实施方式中，与空气在壳体30内以上升的方式流动这一点相应地，壳体30的入口30C和出口30D以在上下方向Z上排列的方式配置，但也可以是，空气在壳体30内沿左右方向X等横向流动，在该情况下，也可以以入口30C和出口30D横向排列的方式变更壳体30的姿势。无论如何，第一电极31和第二电极32以不会阻碍从入口30C流向出口30D的空气的方式沿该空气的流动配置。
图5是收集部25的俯视图。收集部25在循环路20中的空气的流动方向(图1中的粗虚线箭头)上配置于带电部24的下游侧，在本实施方式中，在带电部24的上侧Z1相邻配置。收集部25包括：中空的壳体40；多个第三电极43，配置于壳体40内；以及第四电极44，配置于相邻的第三电极43之间。
壳体40的一个例子是由在上下方向Z上延伸的四个纵壁40A构成的长方体。由这些纵壁40A包围的空间是壳体40的内部空间40B。在壳体40形成有被四个纵壁40A的下端包边的矩形的入口40C和被四个纵壁40A的上端包边的矩形的出口40D(也参照图6)。内部空间40B从入口40C向下侧Z2敞开，从出口40D向上侧Z1敞开。壳体40构成循环路20中的流出路20G、详细而言后部分20B中的在上下方向Z上延伸的部分的一部分(参照图1)。壳体40的内部空间40B、入口40C以及出口40D构成在流出路20G的内部空间中在上下方向Z上延伸的区域的一部分。壳体40的入口40C从上侧Z1与带电部24的壳体30的出口30D(参照图3)连通。
图6是图5的C－C向视剖视图。在本实施方式中，流过循环路20并在带电部24的壳体30内经过的空气在壳体40内从入口40C向出口40D上升(参照粗虚线箭头)。在四个纵壁40A中，一对纵壁40AA以与剩余的一对纵壁40AB正交的方式配置。一对纵壁40AA中的一方的下端部包括：贯通孔40E；斜坡40F，从贯通孔40E的下端向内部空间40B突出；以及引导箱40G，从壳体40 之外覆盖贯通孔40E。贯通孔40E、斜坡40F以及引导箱40G在一对纵壁40AB的对置方向R上为长边。贯通孔40E和斜坡40F以在内部空间40B中遍及对置方向R的整个区域的方式设置。斜坡40F以从贯通孔40E向斜上侧倾斜的方式配置，斜坡40F的上表面40H也倾斜。在上表面40H中的最远离贯通孔40E的上端部设有向上侧Z1突出的突出部40I。
引导箱40G的内部空间40J处于与贯通孔40E连通的状态。图7是图5的D－D向视剖视图。引导箱40G中的从下侧Z2划分出内部空间40J的底面40K经由贯通孔40E与斜坡40F的上表面40H的下端连接。底面40K例如是随着趋向对置方向R中的一个方向而逐渐下降的倾斜面，在其下端形成有排出口40L。在引导箱40G的下表面设有以包围排出口40L的状态向下侧Z2突出的圆筒状的连结部40M。
第三电极43是在对置方向R上薄的板状的对置电极，例如由不锈钢或铝形成，由此具有导电性。在本实施方式中，七片第三电极43在壳体40的内部空间40B中以在对置方向R上等间隔地排列的方式配置(参照图5)。各第三电极43通过使从其上端部突出的突出部43A卡合于壳体40的出口40D的台阶部40N而被定位在内部空间40B。需要说明的是，也可以是，在对置方向R上延伸的连结轴45将各第三电极43的突出部43A串成一串，从而使所有的第三电极43一体化(参照图6)。各第三电极43中的壳体40的入口40C侧的下端缘43B以朝着纵壁40AA的贯通孔40E逐渐下降的方式直线状倾斜。各第三电极43的下端缘43B中的贯通孔40E侧的下端部配置于斜坡40F的正上方，在上下方向Z上配置于与贯通孔40E相同的位置。
图8是从图6中抽出第四电极44的图。各第四电极44是具有在一对纵壁40AA的对置方向S(参照图6)上长尺寸的主体44A和覆盖主体44A的大部分的绝缘体44B的绝缘电极。主体44A例如由铜形成，由此具有导电性。主体44A具有与第三电极43相反的极性。绝缘体44B呈在一对纵壁40AA的对置方向R上薄且在对置方向S上长的长方形的板状。第四电极44逐一配置于相邻的第三电极43之间，以不与第三电极43接触的状态架设于一对纵壁40AA之间(参照图5和图6)。从对置方向R观察，各第四电极44的大部分以与各第三电极43重叠的方式配置(参照图6)。主体44A中的从绝缘体44B露出的根部44AA 和绝缘体44B中的根部44AA侧的部分配置于壳体40之外。
在本实施方式中，第三电极43的极性为接地侧的负极，第四电极44的极性为正极。当从设于洗干一体机1的电源(未图示)向收集部25施加了电压时，会向第三电极43与第四电极44之间施加几kV～几十kV的高电压。其中，第四电极44的表面由绝缘体44B构成，因此第三电极43与第四电极44之间不流过电流。因此，能防止因第三电极43与第四电极44之间的漏电(leak)等而导致跳火(spark)、电压变动。另一方面，第三电极43与第四电极44之间会产生电场，因此在通过带电部24使正极带电了的状态下流入收集部25的壳体40内的水分在本实施方式中会被负极的第三电极43收集。由此，收集部25能有效地收集带电的水分。因此，由带电部24进行了除湿的空气会被进一步除湿。
被第三电极43收集的水分在第三电极43的表面成为水滴，因自重而沿着第三电极43的下端缘43B的倾斜流动(参照图6的箭头T1)，落到斜坡40F的上表面40H上。落到上表面40H上的水分沿着上表面40H的倾斜流下而流入引导箱40G的内部空间40J(参照图6的箭头T2)，沿着引导箱40G的底面40K的倾斜流下而从排出口40L流入连结部40M内(参照图7的箭头T3)。
需要说明的是，也可以采用第三电极43的极性为正极且第四电极44的极性为负极的相反结构。此外，在本实施方式中，与空气在壳体40内以上升的方式这一点相应地，壳体40的入口40C和出口40D以在上下方向Z上排列的方式配置，但也可以是，空气在壳体40内沿横向流动，在该情况下，也可以以入口40C和出口40D横向排列的方式变更壳体40的姿势。无论如何，第三电极43和第四电极44以不会阻碍从入口40C流向出口40D的空气的方式沿该空气的流动配置。
排出路26是从带电部24和收集部25向下侧Z2延伸并与排水路7连接的流路(参照图1)。排出路26的一端部26A分支，分别与带电部24的连结部30M和收集部25的连结部40M连接(参照图4和图7)。在图1中，排出路26中的与一端部26A相反的另一端部26B与排水路7的上游部7A连接。
洗干一体机1包括：湿度检测部50，检测在容纳筒5与循环路20之间循环的空气即从流入路20F到流出路20G进行流动的空气的湿度；以及温度检测部51，检测该空气的温度。作为湿度检测部50，能采用公知的湿度传感器。湿度 检测部50包括：第一湿度检测部50A，在流出路20G内配置于取出口20D与带电部24之间；第二湿度检测部50B，在流出路20G内配置于比收集部25远离取出口20D的下游部；以及第三湿度检测部50C，在流入路20F内配置于返回口20E与加热部22之间。
作为温度检测部51，能采用热敏电阻等公知的温度传感器。温度检测部51包括：第一温度检测部51A，在流出路20G内配置于取出口20D与带电部24之间；第二温度检测部51B，在流出路20G内配置于比收集部25远离取出口20D的下游部；以及第三温度检测部51C，在流入路20F内配置于返回口20E与加热部22之间。需要说明的是，配置于相近的位置的湿度检测部50和温度检测部51也可以一体化为一个湿度温度检测部。
图9是表示洗干一体机1的电气结构的框图。洗干一体机1还包括控制部55。控制部55例如设为微机，包括：CPU(中央处理器)；ROM(只读存储器)、RAM(随机存取存储器)等存储器；以及计时用的计时器，控制部55内置于箱体2内(参照图1)。马达8、水位检测部14、供水阀15、排水阀17、送风部21、加热部22、带电部24、收集部25、湿度检测部50以及温度检测部51分别与控制部55电连接。水位检测部14、湿度检测部50以及温度检测部51各自的检测值被实时地输入至控制部55。
控制部55通过对马达8、供水阀15、排水阀17、送风部21、加热部22、带电部24以及收集部25各自的动作进行控制来执行洗涤烘干运转。洗涤烘干运转包括：初始阶段的清洗过程、在清洗过程后执行一次或多次的漂洗过程、至少在最后的漂洗过程后执行的脱水过程以及最后阶段的烘干过程。这些过程可以是各自独立的运转，在该情况下，例如，清洗过程是清洗运转，烘干过程是烘干运转。
在清洗过程中，控制部55首先使马达8工作而使旋转筒4正转或反转，基于此时的马达8的电流值，判定旋转筒4内处于烘干状态的洗涤物L的质量。控制部55基于判定的洗涤物L的质量来决定需要的洗涤剂量和清洗过程中的水筒3内的目标水位。控制部55将决定的洗涤剂量的信息显示在设于箱体2的前表面2A等的显示操作部(未图示)。
然后，控制部55通过在关闭了排水阀17的状态下打开供水阀15来执行供 水处理。由此，来自供水路6的自来水从供水口6A流入而蓄于水筒3内，因此水筒3内的水位上升。当由水位检测部14检测到水筒3内的水位上升至目标水位时，控制部55通过关闭供水阀15来结束供水处理。需要说明的是，也可以是，向水筒3内的供水量不通过水位检测部14而通过设于供水阀15的附近等的流量传感器来测定。在供水处理的前后，洗涤剂由用户手动投入或自动投入至旋转筒4内。由此，通过洗涤剂溶解于自来水而生成的洗涤剂水蓄于旋转筒4内。
作为供水处理后的清洗处理，控制部55通过马达8使旋转筒4旋转。由此，旋转筒4内的洗涤物L被捶洗。在捶洗中，反复进行洗涤物L被举起一定程度后自然落下至水面的所谓翻滚。通过由翻滚产生的冲击、蓄于旋转筒4的洗涤剂水中所含的洗涤剂成分，从洗涤物L去除污垢。当从翻滚开始经过了规定时间后控制部55打开排水阀17进行排水时，清洗过程结束。
在漂洗过程中，控制部55在关闭了排水阀17的状态下至少将供水阀15打开规定时间，向水筒3蓄留自来水，然后通过马达8使旋转筒4旋转。如此，反复进行上述的翻滚，因此洗涤物L被旋转筒4内的自来水漂洗。当从翻滚开始经过了规定时间后控制部55进行排水时，漂洗过程结束。
在脱水过程中，控制部55在打开排水阀17的状态下使旋转筒4脱水旋转。通过由旋转筒4的脱水旋转而产生的离心力，旋转筒4内的洗涤物L被脱水。通过脱水而从洗涤物L渗出的水从排水路7向机外排出。脱水过程不仅可以在漂洗过程后实施，也可以在清洗过程后实施。在最后的脱水过程之后，控制部55通过使旋转筒4快速地反复正转和反转，将旋转筒4内的洗涤物L从旋转筒4的圆周壁4A剥离或松解开。由此，能防止洗涤物L在之后的烘干过程中产生褶皱。
图10是表示烘干过程的时间图。在图10的时间图中，横轴表示经过时间。另一方面，纵轴从下往上依次表示：流过除湿设备23的带电部24的第一电极31与第二电极32之间的电流的值即放电电流值、第一湿度检测部50A的检测值即第一湿度、第一温度检测部51A的检测值即第一温度、第二湿度检测部50B的检测值即第二湿度、第二温度检测部51B的检测值即第二温度、第三湿度检测部50C的检测值即第三湿度以及第三温度检测部51C的检测值即第三温度。 放电电流值的单位为将放电电流的实际值最大时设为100％的“％”。经过时间的单位为“分钟”，湿度的单位为“％”，温度的单位为“度”。湿度为相对湿度。
参照图1和图10，对烘干过程进行详细说明。第一湿度是从水筒3的取出口20D流入循环路20的流入路20F并到达除湿设备23之前的空气的湿度，第一温度为该空气的温度。第二湿度是在循环路20内经过除湿设备23被除湿后到达加热部22之前的空气的湿度，第二温度为该空气的温度。第三湿度是在循环路20内由除湿设备23除湿后由加热部22加热并从返回口20E返回至水筒3之前的空气的湿度，第三温度为该空气的温度。
控制部55在脱水过程的最后或烘干过程正要开始前使马达8工作而使旋转筒4正转或反转，基于此时的马达8的电流值、电压值、驱动频率，判定旋转筒4内处于潮湿状态的洗涤物L的质量。
然后，控制部55通过至少控制送风部21、加热部22以及除湿设备23来执行烘干过程。在烘干过程中，通过送风部21和加热部22工作，热风产生并在容纳筒5与循环路20之间循环，被散布至旋转筒4内的洗涤物L。由此，通过洗涤物L内的水分与热风的热交换，该水分蒸发而成为水蒸气，因此会促进洗涤物L的烘干。
在烘干过程中，通过控制部55的控制来向除湿设备23的带电部24和收集部25施加电压。由此，随着从洗涤物L蒸发出的水分流过循环路20内的空气如上所述地在经过带电部24的壳体30的内部空间30B和收集部25的壳体40的内部空间40B时被除湿。此外，控制部55可以通过在烘干过程中使马达8工作而使旋转筒4旋转来对洗涤物L进行搅拌，以使热风遍布洗涤物L的周遭。
在烘干过程中，控制部55根据温度检测部51的检测结果、换言之根据容纳筒5内的洗涤物L的烘干状况来控制除湿设备23。具体而言，在烘干过程开始时(图10的时刻t0)，第一湿度、第二湿度以及第三湿度为65％且第一温度、第二温度以及第三温度为20度的状态下，当送风部21和加热部22工作而热风循环时，这些湿度和温度上升。
其中，在烘干过程的初期，热风所具有的热能被洗涤物L中的水分的温度 上升所消耗，来自洗涤物L的水分的蒸发少。因此，循环的热风的温度低而洗涤物L的烘干缓慢，流过循环路20内的空气的湿度的上升也缓慢。在像这样虽然容纳筒5内的温度上升但洗涤物L的烘干未正式开始的初期，在直到第一温度上升至80度这一规定阈值为止的整个期间，控制部55通过将除湿设备23的放电电流值限制为例如50％这一规定值以下来限制除湿设备23的除湿性能。特别是，在从送风部21和加热部22工作到第三温度上升至80度的目标温度为止的最初期，控制部55例如通过将除湿设备23的放电电流值设为0％而使除湿设备23不工作。当第三温度上升至目标温度时(图10的时刻t1)，控制部55使除湿设备23的放电电流值上升至50％并维持在50％。
需要说明的是，控制部55可以基于第一温度、第二温度以及第三温度各自的经时变化，特别是第一温度、第二温度的经时变化来推定洗涤物L的质量、种类。例如，丙烯酸、聚酯等化学纤维材质的洗涤物L的保水量少，因此第一温度、第二温度的上升速度快。另一方面，棉材质的洗涤物L的保水量多，因此第一温度、第二温度的上升速度慢。因此，控制部55也能基于在清洗过程的最初判定出的洗涤物L的质量和第一温度、第二温度的斜率来推定旋转筒4内的洗涤物L中的化学纤维材质与棉材质的比率。
然后，在初期的最后阶段，不止是洗涤物L中的水分的温度上升，来自洗涤物L的水分的蒸发也活跃，由此从取出口20D向循环路20内流入的空气差不多成为饱和水蒸气，因此第一温度上升至80度(图10的时刻t2)。如此，控制部55使除湿设备23的放电电流值上升至比所述规定值高的100％，在之后的中期也将放电电流值维持在100％。即，控制部55解除除湿设备23的除湿性能的限制。由此，在中期，洗涤物L的正式烘干开始，并且除湿设备23的除湿性能充分地发挥，由此也会促进与洗涤物L的水分进行热交换后的空气的除湿。由此，洗涤物L的温度接近向容纳筒5内供给的热风的温度即第三温度。需要说明的是，也可以将初期的最后阶段即时刻t2的紧前视为中期。
控制部55也可以基于湿度检测部50的检测值来控制除湿设备23。例如，也可以是，当初期第一湿度上升至100％后经过一段时间时(图10的时刻t2)，控制部55使除湿设备23的放电电流值上升至100％。不过，在湿度为100％的状态下，由于湿度检测部50本身会结露，因此会有无法正确检测湿度的隐患。 因此，控制部55通过一并使用温度检测部51，基于湿度检测部50的检测值和温度检测部51的检测值来优化控制除湿设备23为好。
然后，当洗涤物L的烘干差不多完成时(图10的时刻t3)，第一温度从80度开始降低，第一湿度从100％开始降低，因此烘干过程从中期转移至末期。与此相对应地，控制部55使除湿设备23的放电电流值从此前的100％例如阶段性地降低，最终成为0％，由此使除湿设备23停止。即，在洗涤物L的烘干逐渐完成的末期，除湿设备23逐渐完成任务，因此除湿性能被限制。在烘干过程中，控制部55能通过分别在初期、中期以及末期使除湿设备23适当地工作来高效地将洗涤物L烘干。
在末期，第一温度、第二温度以及第三温度分别在75度左右大致恒定。在烘干过程中，控制部55在从这些温度大致恒定起经过规定时间后的最后的时刻(图10的时刻t4)使加热部22停止，执行降温(cool down)处理。需要说明的是，控制部55也可以基于如上所述推定出的旋转筒4内的洗涤物L中的化学纤维材质与棉材质的比率来调整该规定时间。由此，能防止洗涤物L过度烘干、烘干不足、烘干不均，能谋求提高烘干的完成状况、烘干过程的结束时刻的感测的精度。
在降温处理中，控制部55在使加热部22停止的状态下使送风部21持续工作。由此，通过冷风循环来降温容纳筒5内的洗涤物L、门10。由此，用户能在烘干过程后迅速地探到容纳筒5内取出洗涤物L。
如上所述，在烘干过程中，从洗涤物L吸收水分并从容纳筒5流出至流出路20G的空气被除湿设备23除湿。在除湿设备23中，带电部24使流过流出路20G内的空气中所含的水分带电，收集部25通过第三电极43(参照图6)来收集该水分，排出路26将收集到的水分向流出路20G之外排出。像这样，能提供一种使用了使水分带电后进行收集的新的除湿设备23的洗干一体机1。
特别是，若是在使水分带电后进行收集的结构的除湿设备23，则能将空气在高温的状态下进行除湿，因此能抑制流过流出路20G的空气的温度在刚除湿后大幅降低。由此，加热部22能将除湿后的空气迅速地再加热至将洗涤物L烘干所需的温度。因此，能缩短加热部22的工作时间，因此能实现烘干过程中的时间缩短和节能。需要说明的是，除湿设备23不仅能使水分带电，还能使空气 中的异物带电来进行收集，因此能防止循环路20内被异物污染。
此外，在除湿设备23中，带电部24的第一电极31和第二电极32以不会阻碍流过流出路20G的空气的方式沿空气的流动(图3和图6中的粗虚线箭头)配置，第一电极31和第二电极32中相邻的电极的间隔d(参照图2)被较宽地确保为例如2mm以上。收集部25的第三电极43和第四电极44也同样。因此，能谋求包含流出路20G的循环路20整体中的压力损耗的降低。由此，通过抑制循环路20中的风量降低，能使大量的热风强势地散布至容纳筒5内的洗涤物L，因此能在短时间内将洗涤物L烘干。而且，通过实现送风部21的小型化、送风部21的马达21B的低旋转化，还能谋求烘干过程中的低噪音化。
此外，在烘干过程中，带电部24的第二电极32进行电晕放电，由此产生臭氧，该臭氧随着循环路20内的空气被散布至洗涤物L，因此，不仅能将洗涤物L烘干，还能通过臭氧来进行除臭或除菌。需要说明的是，控制部55也可以通过控制带电部24来调整臭氧的产生量。
本发明并不限定于以上说明的实施方式，可以在技术方案所记载的范围内进行各种变更。
例如，可以是，在烘干过程中，控制部55不仅控制送风部21、加热部22以及除湿设备23，还控制供水阀15和排水阀17。具体而言，在烘干过程中，控制部55在关闭了排水阀17的状态下打开供水阀15来向水筒3内蓄水，直到水位检测部14所检测的水筒3内的水位达到比旋转筒4靠下侧Z2的规定水位U(参照图1)。在该情况下，不仅能通过除湿设备23，还能通过蓄于水筒3内的水来对容纳筒5内的空气进行除湿，因此能使洗干一体机1整体发挥最大限度的除湿性能。
特别是，当容纳筒5内的空气经过蓄于水筒3内的水的水面附近后流入循环路20内时，该空气中的水分变大至可目视的大小的水滴而变得容易带电，因此除湿设备23能通过使空气中的水分有效地带电进行收集来谋求除湿性能的提高。此外，水在水筒3内蓄至不与旋转筒4接触的程度，因此即使如上所述在烘干过程中旋转筒4旋转，蓄于水筒3内的水也不会飞溅而弄湿洗涤物L。需要说明的是，也可以设置检测水筒3内的水温的水温传感器(未图示)，控制部55也可以基于水温传感器的检测值，将向水筒3内蓄水的水量即贮水量根据洗 涤物L的种类、量调整为最佳。
而且，在上述的实施方式中，除湿设备23的排出路26与排水路7的上游部7A连接(参照图1)。在该情况下，在排水阀17关闭的状态下，当由除湿设备23收集到的水分流过排出路26时，排水路7的上游部7A会蓄水。在该情况下也不仅能通过除湿设备23还能通过蓄于水筒3内的水来对容纳筒5内的空气进行除湿，因此能使洗干一体机1整体发挥最大限度的除湿性能。而且，能将从除湿设备23排出的水有效用于除湿。
此外，在上述的实施方式中，带电部24不仅能使水分带电，还能通过第一电极31来收集带电后的水分。因此，带电部24也作为收集部发挥功能，收集部25作为对带电部24无法收集的水分进行收集的追加的收集部发挥功能。在带电部24充分具有水分的收集性能的情况下，也可以省略收集部25。
此外，对洗干一体机1，可列举出以下的第一～第七变形例。图11以后的各图表示对应的变形例，但在图11以后的各图中，对与此前说明的部分相同的部分标注相同的附图标记，省略关于该部分的说明。
除湿设备23的排出路26的另一端部26B也可以如图11所示的第一变形例那样与排水路7的下游部7B连接。在排出路26中，至少另一端部26B也可以如图12所示的第二变形例那样配置于循环路20的流出路20G内。在该情况下，由除湿设备23收集并流过排出路26的水流过流出路20G而从取出口20D流入容纳筒5，从排水路7向机外排出。像这样流过排出路26和流出路20G而流入容纳筒5的水能去除流出路20G和容纳筒5内的泡沫、灰尘等污垢。另一方面，另一端部26B也可以如图13所示的第三变形例那样与水筒3的背面壁3B连接。
如图14所示的第四变形例那样，除湿设备23也可以包括向流出路20G内供给细雾的雾供给部60。雾供给部60至少包括：流水路61，从供水路6中的比供水阀15靠近水龙头的上游部分支；喷嘴62，装配于流水路61的顶端部；以及流水阀63，设于流水路61的中途。喷嘴62在流出路20G内配置于取出口20D与带电部24之间的区域。喷嘴62具有雾的喷射口62A。流水阀63例如是电磁阀，通过控制部55的控制来开闭。打开状态的流水阀63处于打开了流水路61的状态，在该状态下，来自水龙头的自来水流过流出路20G，从喷嘴62的喷射口62A向流出路20G内呈雾状喷射。自来水的水温为20度，因此雾为 较高温度。关闭状态的流水阀63处于关闭了流水路61的状态，停止雾的供给。
雾供给部60从喷嘴62的喷射口62A供给至流出路20G内的雾会使通过带电部24而被带电的水分成为对收集部25而言容易收集的大小的水滴，因此收集部25能高效地收集该水分。具体而言，雾的粒径为2μm左右，因此若与5mm左右的大小的水滴按单位重量计进行比较，则雾相对于带电的水分以约2500倍的接触面积进行接触。由此，带电的水分因被急速夺去热量而成为水滴，多个水滴聚集而成为大水滴。需要说明的是，用于雾供给部60中的雾的水量与现有的水冷式的除湿设备中使用的水量相比极少。
雾供给部60既可以仅通过自来水的压力来产生雾，也可以利用超声波振子来产生雾。此外，也可以在流水路61中于喷嘴62与流水阀63之间设置水压调整阀(未图示)。控制部55控制水压调整阀来调整流水路61内的水压，由此能调节从喷射口62A喷射的雾的量。雾供给部60也可以包括对流过流水路61的自来水进行加压的泵64。由此，能增强从喷射口62A喷射的雾的势头，还能调整该势头。喷射口62A在图14中朝向下侧Z2配置，由此从与流出路20G内的空气的流动方向相反侧喷射雾，因此能使该空气与雾高效地进行热交换，能防止雾进入送风部21、加热部22、除湿设备23。
此外，也能通过向流出路20G内喷射的雾来对流出路20G内进行清洗。而且，通过将因雾而变为高湿的热风散布至容纳筒5内的洗涤物L，能缓和洗涤物L的褶皱。因此，也可以采用喷射口62A朝向上侧Z1配置的结构。控制部55根据湿度检测部50、温度检测部51等的检测结果，不仅控制带电部24、收集部25，还控制雾供给部60为好。由此，能向流出路20G内供给与烘干过程中的湿度、温度相适的量或势头的雾。
如图15所示的第五变形例那样，烘干单元9还可以包括从循环路20分支并与洗干一体机1的机外连通的排气路20H。即，循环路20的流出路20G分支为作为循环路20的延续而与流入路20F连接的连接路20I和排气路20H。排气路20H中的与机外连通的部分是形成于箱体2的排气口20J。可以是，流入路20F也与洗干一体机1的机外连通。在该情况下，流入路20F中的与机外连通的部分是形成于箱体2的吸气口20K，配置于与返回口20E相反侧。
在排气路20H设有对排气口20J进行开闭的排气阀70，在流入路20F设有 对吸气口20K进行开闭的吸气阀71。排气阀70和吸气阀71是调整阀，各自的开闭由控制部55控制。特别是，控制部55能调整排气阀70和吸气阀71各自的开度。排气阀70和吸气阀71分别在开度为零时处于关闭的状态。当控制部55使开度增大从而打开了排气阀70时，排气口20J被打开，因此排气路20H内的空气向机外排出。当控制部55使开度增大从而打开了吸气阀71时，吸气口20K被打开，因此外部空气能流入至流入路20F内。也可以在吸气口20K设置捕获外部空气中所含的异物的过滤器(未图示)。
在连接路20I中的与流入路20F连接的部分设有切换部72。切换部72由可开闭的调整阀等构成。控制部55通过调整切换部72的开度来对切换部72进行开闭。切换部72在开度为零时处于关闭的状态。当控制部55使开度增大从而打开了切换部72时，流入路20F与连接路20I连通。当在该状态下送风部21工作时，流出路20G内的空气会经由连接路20I流向流入路20F从而持续流过循环路20，因此会如上所述进行循环。因此，能将该空气再利用于容纳筒5内的洗涤物L的烘干。另一方面，当切换部72关闭时，流入路20F和连接路20I被切断，因此流出路20G内的空气会流向排气路20H。像这样，切换部72通过控制部55的控制来使流出路20G内的空气流向排气路20H或流向连接路20I。
在切换部72关闭的状态下，通过使从容纳筒5流出至流出路20G的空气流向排气路20H，能将该空气向机外排出。该空气处于由除湿设备23除湿了的状态，因此即使被排出至机外，也不会使周围的壁面、家具等结露或产生霉菌。不过，在来自检测机外的温度、湿度的外部传感器(未图示)的检测结果会被输入至控制部55的情况下，也可以是，在机外的温度和湿度低的情况下，控制部55在烘干过程中使除湿设备23不工作，由此将高湿的空气从排气路20H向机外排出，对机外进行加湿。而且，在夏季等时，在机外的温度即室内温度高的情况下，在烘干过程中，为了抑制室内温度因高温的空气出到机外而上升，控制部55也可以通过抑制加热部22所产生的热量来特意延长烘干过程的时间。
此外，也能通过切换部72来调整流出至流出路20G的空气当中向机外排出的空气与循环的空气的比率。例如，在烘干过程的初期(参照图10)，为了使向容纳筒5内供给的热风的温度尽快上升，控制部55调整切换部72的开度以使循环的空气的比率增加。另一方面，在烘干过程的中期(参照图10)，来自 洗涤物L的水分蒸发量增加，因此为了抑制水分向机外的排出量，控制部55调整切换部72的开度以使向机外排出的空气的比率降低。在烘干过程的末期(参照图10)，来自洗涤物L的水分蒸发量少，因此控制部55可以调整切换部72的开度以使向机外排出的空气的比率增加。特别是，在末期的最后，作为上述的降温处理，控制部55通过关闭切换部72以使所有的空气向机外排出来使寒冷的外部空气从吸气口20K到排气口20J单向地流动。
此外，在冬季等时室内温度低而热风的温度不易上升的情况下，控制部55也可以根据湿度检测部50、温度检测部51、外部传感器(未图示)的检测结果来调整切换部72的开度。由此，能通过调整向机外排出的空气与循环的空气的比率来使热风有效地散布至洗涤物L，因此能谋求功耗的降低、烘干过程的时间缩短。
如图16所示的第六变形例那样，也可以配置为通过省略连接路20I来使流入路20F与流出路20G分离。在该情况下，当送风部21工作时，外部空气从吸气口20K流入至流入路20F，由加热部22加热而成为热风，热风从返回口20E散布至容纳筒5内的洗涤物L后，从取出口20D向流出路20G流出，经由排气路20H从排气口20J向机外排出。即，在第六变形例中，空气不循环而始终单向地流动。
如图17和图18所示的第七变形例那样，带电部24和收集部25也可以内置于送风部21。该情况的送风部21包括将旋转叶片21A与带电部24和收集部25一起容纳的壳体80。壳体80包括：上下方向Z上扁平的圆筒部80A；中空的流入部80B，配置于圆筒部80A上；以及中空的流出部80C，从圆筒部80A的外周部向切线方向延伸。旋转叶片21A例如是涡轮风扇(图18的风扇)。流入部80B的内部空间处于圆筒部80A的顶壁上的位于旋转叶片21A的正上方的流入口80D与圆筒部80A的内部空间连通的状态。流出部80C的内部空间处于经由形成于圆筒部80A的圆周壁的圆周上的一个部位的流出口80E与圆筒部80A的内部空间连通的状态。
这样的壳体80构成循环路20的中途部分20A。因此，当旋转叶片21A通过送风部21工作而旋转时，如图17的虚线箭头所示，中途部分20A内的空气从流入部80B经过流入口80D流入圆筒部80A内的旋转叶片21A的内侧后被推 向旋转叶片21A的径向外侧，从流出口80E向流出部80C流出。
带电部24设于流入部80B，收集部25配置为沿圆筒部80A的内周部弯曲成圆弧状。在该情况下，流过流入部80B内的空气中所含的水分会通过带电部24被带电。具体而言，流入部80B内随着送风部21工作而成为负压状态，因此流过流入部80B内的空气的温度降低，由此该空气中所含的水分容易变成水滴。此外，通过送风部21的旋转叶片21A的旋转所产生的离心力，刚才的水滴与空气中的水分混合，因此空气中所含的水分更加容易变成水滴。因此，未被带电部24收集到的水分会在圆筒部80A内被收集部25有效地收集。由带电部24和收集部25收集到的水分流过排出路26而转移至水筒3、排水路7。需要说明的是，也可以是，在流入部80B内的比带电部24远离流入口80D的上游侧设置有从流过流入部80B内的空气中捕获灰尘、尘埃等异物的过滤器81。
以上说明的各种特征可以在取舍选择的基础上根据需要适当组合。例如，可以将上述的变形例彼此组合。

Claims (7)

  1. 一种烘干机，其特征在于，包括：
    容纳筒，容纳烘干对象物；
    流入路，使空气流入所述容纳筒内；
    流出路，使空气从所述容纳筒流出；
    送风部，使空气依次流过所述流入路、所述容纳筒以及所述流出路；
    加热部，对从所述流入路向所述容纳筒流入的空气进行加热；以及
    除湿设备，对流过所述流出路内的空气进行除湿，
    所述除湿设备包括：
    带电部，使流过所述流出路内的空气中所含的水分带电；
    收集部，收集通过所述带电部而被带电了的水分；以及
    排出路，将由所述收集部收集到的水分向所述流出路之外排出。
  2. 根据权利要求1所述的烘干机，其特征在于，
    所述容纳筒包括可蓄水的水筒，
    所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；以及排水阀，对所述排水路进行开闭，
    所述排出路连接于所述排水路中的所述排水阀与所述水筒之间的上游部。
  3. 根据权利要求1所述的烘干机，其特征在于，
    所述容纳筒包括可蓄水的水筒，
    所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；以及排水阀，对所述排水路进行开闭，
    所述流出路与所述水筒连接，
    所述排出路配置于所述流出路内。
  4. 根据权利要求1～3中任一项所述的烘干机，其特征在于，
    所述烘干机包括：控制部，通过对所述送风部、所述加热部以及所述除湿设备进行控制来执行将所述容纳筒内的烘干对象物烘干的烘干运转；以及温度检测部，检测从所述流入路到所述流出路进行流动的空气的温度，
    在所述烘干运转中，所述控制部根据所述温度检测部的检测结果来控制所述除湿设备。
  5. 根据权利要求4所述的烘干机，其特征在于，
    所述流出路分支为与所述烘干机的机外连通的排气路和与所述流入路连接的连接路，
    所述烘干机包括：切换部，通过所述控制部的控制来使所述流出路内的空气流向所述排气路或流向所述连接路。
  6. 根据权利要求1～5中任一项所述的烘干机，其特征在于，
    所述除湿设备包括：雾供给部，向所述流出路内供给雾。
  7. 根据权利要求1～6中任一项所述的烘干机，其特征在于，
    所述容纳筒包括：水筒，可蓄水；以及旋转筒，在所述水筒内配置为可旋转，容纳烘干对象物，
    所述烘干机包括：排水路，与所述水筒连接，将水从所述水筒排出；排水阀，对所述排水路进行开闭；供水路，与所述水筒连接，向所述水筒供水；供水阀，对所述供水路进行开闭；控制部，通过对所述送风部、所述加热部、所述除湿设备、所述排水阀以及所述供水阀进行控制来执行将所述旋转筒内的烘干对象物烘干的烘干运转；以及水位检测部，检测所述水筒内的水位，
    在所述烘干运转中，所述控制部在关闭了所述排水阀的状态下打开所述供水阀来向所述水筒内蓄水，直到所述水位检测部所检测的所述水筒内的水位达到比所述旋转筒靠下侧的规定水位。
PCT/CN2021/101719 2020-12-28 2021-06-23 烘干机 WO2022142190A1 (zh)

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