CN110100056B - Washing and drying machine - Google Patents
Washing and drying machine Download PDFInfo
- Publication number
- CN110100056B CN110100056B CN201780080233.9A CN201780080233A CN110100056B CN 110100056 B CN110100056 B CN 110100056B CN 201780080233 A CN201780080233 A CN 201780080233A CN 110100056 B CN110100056 B CN 110100056B
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- 238000005406 washing Methods 0.000 title claims abstract description 93
- 238000001035 drying Methods 0.000 title claims abstract description 69
- 238000005192 partition Methods 0.000 abstract description 11
- 230000037303 wrinkles Effects 0.000 abstract description 11
- 238000007664 blowing Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 description 15
- 238000012986 modification Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000010981 drying operation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
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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
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
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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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
A washing and drying machine capable of reducing wrinkles generated on dried laundry. The drying device (50) comprises: a first air passage (211) through which first air sent from the blower (200) flows; a nozzle (260) for blowing out the first air flowing through the first air passage (211) from above toward the bottom of the washing and dehydrating tub; an opening (215) formed in the partition wall surface (213) in the first air passage (211); a second air passage (212) connected to the opening (215) and through which a part of the air flows out from the opening (215); a guide plate (216) that guides a part of the wind to the opening (215) while decelerating the wind; a heater (220) provided in the second air duct (212) and heating a part of the decelerated air; and a second inlet for introducing a second wind, which is obtained by heating a part of the wind by the heater (220), into the tub.
Description
Technical Field
The present invention relates to a washing and drying machine.
Background
Conventionally, a washing and drying machine is known which is equipped with a drying function for laundry in a so-called scroll type washing machine (fully automatic washing machine) which washes laundry by generating water flow in a washing and drying tub by means of a pulsator disposed at the bottom of the washing and drying tub. For example, patent document 1 describes an example of such a washing and drying machine.
In the washing and drying machine of patent document 1, a warm air supply unit for supplying high-temperature air into the washing and drying tub is disposed on an upper surface plate having a laundry inlet. An opening of an upper surface of an outer tub provided with a washing and dehydrating tub is covered by an outer tub cover having an inner cover. The warm air generated by the warm air supply unit is blown out from the upper part of the outer barrel to the washing and dehydrating barrel through a warm air pipeline connected with the outer barrel cover. In the washing and dewatering barrel, the washings are stirred by a wave wheel.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2007-054368
Disclosure of Invention
Problems to be solved by the invention
In the washing and drying machine, since the laundry is stirred by the pulsator, the laundry is hard to move vigorously in any way. Therefore, the laundry is likely to be dried in a contracted state, and wrinkles are likely to be generated in the dried laundry.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a washing and drying machine capable of reducing wrinkles generated in dried laundry.
Means for solving the problems
The washing and drying machine of the main scheme of the invention comprises: an outer tub elastically supported in the casing; a washing and dehydrating tub rotatably disposed in the outer tub and accommodating laundry; a drying device for drying the washings in the washing and dehydrating barrel; and a pulsator rotatably disposed at a bottom of the washing and dehydrating tub. Here, the drying device includes: a blower; a first air passage through which first air sent from the blower flows; a nozzle configured to blow the first air flowing through the first air passage from above toward a bottom of the washing and spin-drying tub; an opening portion provided in the first duct, through which a part of the first air flowing through the first duct flows out; a second air passage connected to the opening portion, through which the part of the air flows out; a wind decelerating section for decelerating the part of the wind; a heater provided in the second air passage and configured to heat the part of the air decelerated by the air decelerating portion; and a guide part for guiding the second wind into the outer barrel.
According to the above structure, the first wind can be blown to the washings from the nozzle, therefore, the washings are easy to spread in the washing and dewatering barrel, and the washings are not easy to generate wrinkles during drying. Further, since a part of the first air flowing through the first air passage is heated by the heater in the second air passage after the flow velocity thereof is reduced by the air decelerating portion, the air contacting the heater is heated well, and as a result, the high-temperature second air can be generated in the second air passage. Then, the inside of the tub can be heated well by introducing the high-temperature second air. Thus, the laundry can be dried well by the introduction of the second wind while suppressing the generation of wrinkles of the laundry by the blowing of the first wind.
In the washing and drying machine according to the present aspect, the opening may be formed in a wall surface of the first air passage along a flow direction of the first air. In this case, the air decelerating portion includes an air guiding portion provided in the first air passage and directed toward the opening portion so as to block the portion of the air flowing through the first air passage.
According to the above configuration, a part of the wind is stopped by the wind guide portion, thereby being decelerated and guided to the opening portion. This enables the air with a reduced flow velocity to flow out to the second duct.
In the case of the above configuration, the blower may be a centrifugal fan. In this case, the first air that is fed from the centrifugal fan and flows through the first air passage may have a different flow velocity in a direction perpendicular to the flow of the first air. Therefore, the first air passage may include: a first wall surface along the flow of the first wind and located on a side where the flow velocity is fast; and a second wall surface facing the first wall surface and located on the side where the flow rate is slow, the opening being formed in the second wall surface.
With this configuration, the air having a slower flow rate can be guided to the heater of the second duct, and the air can be heated more satisfactorily by the heater.
In the washing and drying machine according to the present aspect, the second air passage may have a configuration in which the second air flows in a direction orthogonal to an opening direction of the opening portion, and the heater may heat the part of the air passing through the heater, may have a flat shape in the direction in which the part of the air passes, and may be disposed in the second air passage so as to close the opening portion.
According to the above configuration, since the heater is disposed in the second air passage so as to close the opening portion, that is, so that the flat direction is the same as the opening direction of the opening portion, the second air passage can be made compact without increasing the size in the direction orthogonal to the flow direction of the second air, that is, the width direction, as compared to the case where the heater is disposed in the second air passage so that the flat direction is parallel to the flow direction of the second air.
In the washing and drying machine according to the present aspect, the second air passage may have a narrowed portion having a flow path narrower than other portions downstream of the heater.
According to the above configuration, the second air is likely to be accumulated on the outlet side of the heater, and therefore, the flow velocity of the air introduced into the heater can be further reduced, and the air passing through the heater can be heated more favorably.
In the washing and drying machine according to the present aspect, the introduction portion may include an introduction pipe that passes through an inside of the nozzle and through which the second air flows. In this case, the first air flows around the introduction pipe in the nozzle, and the second air flowing through the introduction pipe is blown out into the washing and dehydrating tub together with the first air.
According to the above configuration, the second wind can be sent to the lower part of the tub by the momentum of the first wind, and therefore, the inside of the tub can be efficiently heated by the second wind.
Effects of the invention
According to the present invention, it is possible to provide a washing and drying machine capable of reducing wrinkles generated on dried laundry.
The effects and significance of the present invention will become more apparent from the description of the embodiments shown below. However, the following embodiments are merely examples for carrying out the present invention, and the present invention is not limited to the contents described in the following embodiments.
Drawings
Fig. 1 is a side sectional view of a full automatic washing and drying machine of an embodiment.
Fig. 2 is a perspective view of the pulsator according to the embodiment.
Fig. 3 is a perspective view showing a state in which the drying device is provided above the outer tub cover according to the embodiment.
Fig. 4(a) is a perspective view of the drying apparatus in a state where the top surface of the air duct is omitted in the embodiment, and fig. 4(b) is a sectional view of the blower cut along the line a-a' in fig. 4(a) in the embodiment.
Fig. 5(a) and 5(b) are a perspective view and a side view, respectively, of the nozzle of the embodiment.
Fig. 6 is a view for explaining a direction of an outlet of the nozzle when the washing and dehydrating tub is viewed from above in the embodiment.
Fig. 7(a) and 7(b) are views schematically showing the movement of the laundry in the washing and dehydrating tub during the drying process according to the embodiment.
Fig. 8 is a perspective view of the drying apparatus in a state in which the top surface of the air duct is omitted in modification 1.
Fig. 9(a) is a perspective view of a drying apparatus according to modification 2, and fig. 9(b) is a side view of a nozzle according to modification 2.
Fig. 10 is a perspective sectional view of a main part of a drying apparatus cut at a section B-B' in fig. 9(a) in modification 2.
Detailed Description
Hereinafter, a fully automatic washing and drying machine 1 as an embodiment of the washing and drying machine of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a side sectional view of a full automatic washing and drying machine 1 of the present embodiment.
The full automatic washing and drying machine 1 includes a cabinet 10 constituting an external appearance. The casing 10 includes: a square cylindrical body part 11 with upper and lower surfaces opened; an upper surface plate 12 covering the upper surface of the body section 11; and a footstool 13 for supporting the body part 11. An inlet 14 for putting laundry is formed in the upper plate 12. The inlet 14 is covered with an upper cover 15 that can be opened and closed.
In the casing 10, an outer tub 20 is elastically suspended and supported by four suspension rods 21 having a vibration isolating means. The upper surface of the outer tub 20 is covered by an outer tub cover 22. The outer tub cover 22 has an opening 22a having substantially the same size as the inlet 14 at a position corresponding to the inlet 14. The opening 22a is openably and closably covered by an inner lid 23.
Inside the outer tub 20, a substantially cylindrical washing and dehydrating tub 24 having an opened upper surface is disposed. A large number of dewatering holes 24b are formed in the inner wall surface 24a of the washing and dewatering tub 24 over the entire circumference. On the upper part of the washing and dehydrating tub 24, a balancing ring 25 is provided. At the bottom of the washing and dehydrating tub 24, a pulsator 26 is disposed.
A driving unit 30 for generating a torque to drive the washing and dehydrating tub 24 and the pulsator 26 is disposed at an outer bottom of the outer tub 20. The drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32. The transmission mechanism unit 32 has a clutch mechanism, and by switching operation of the clutch mechanism, the torque of the drive motor 31 is transmitted only to the pulsator 26 to rotate only the pulsator 26 in the washing process and the rinsing process, and the torque of the drive motor 31 is transmitted to the pulsator 26 and the washing and dehydrating tub 24 to rotate the pulsator 26 and the washing and dehydrating tub 24 integrally in the dehydrating process.
A drain port 20a is formed at the outer bottom of the outer tub 20. A drain valve 40 is provided in the drain port portion 20 a. The drain valve 40 is connected to a drain hose 41. When the drain valve 40 is opened, the water accumulated in the washing and dehydrating tub 24 and the outer tub 20 is discharged to the outside of the machine body through the drain hose 41.
At the rear of the upper surface plate 12, an accommodating portion 12a having an open upper surface is provided. The upper surface of the accommodating portion 12a is covered with a rear cover 16. In the accommodating portion 12a, a drying device 50 for drying the laundry in the washing and dehydrating tub 24 and a water supply device (not shown) for supplying water into the tub 20 are accommodated.
Next, the structure of the pulsator 26 will be described in detail.
Fig. 2 is a perspective view of the pulsator 26 of the present embodiment.
The pulsator 26 includes a substantially disk-shaped base 100, two blade portions 110 formed on the surface of the base 100 at 180-degree intervals, and two wall portions 120 formed on the outer periphery of the base 100. The surface of the base 100 is slowly inclined upward toward the center portion 101.
Each blade 110 extends radially from the center 101 of the base 100 to the outer periphery. Each blade 110 has a flat inclined surface 112 for pushing laundry upward on both sides of a top portion 111 extending linearly in the horizontal direction. The inclination angle α of the inclined surface 112 with respect to a plane perpendicular to the rotation axis direction X of the pulsator 26 is, for example, 45 degrees. When the inclination angle α is too small, the laundry climbing the inclined surface 112 cannot be lifted up when the pulsator 26 rotates during drying by the drying device 50. In contrast, when the inclination angle α is excessively large, the laundry hardly climbs up the inclined surface 112 while the pulsator 26 rotates. Thus, the inclination angle α is preferably set in the range of 30 to 60 degrees.
A plurality of water passage holes 130 are formed in the surfaces of the base 100 and the blade 110. The water passage hole 130 passes water to the inside of the pulsator 26.
The wall portion 120 is formed in an arc shape along the outer peripheral edge of the base 100. When the pulsator 26 rotates and laundry placed on the surface of the base 100 moves toward the inner wall surface 24a of the washing and spin-drying tub 24 by centrifugal force, the wall 120 blocks the laundry and directs the laundry toward the inclined surface 112 of the blade 110. Thereby, the laundry is favorably reversed by the inclined surface 112.
Next, the configuration of the drying device 50 will be described in detail.
Fig. 3 is a perspective view showing a state in which the drying device 50 is provided above the tub cover 22 according to the present embodiment. Fig. 4(a) is a perspective view of the drying device 50 in the state where the top surface of the air duct 210 is omitted in the present embodiment, and fig. 4(b) is a sectional view of the blower 200 cut along the line a-a' in fig. 4(a) in the present embodiment. Fig. 5(a) and 5(b) are a perspective view and a side view, respectively, of the nozzle 260 of the present embodiment. Fig. 6 is a diagram for explaining a direction of the blowing port 261 of the nozzle 260 when the washing and dehydrating tub 24 is viewed from above in the present embodiment.
The drying device 50 includes a blower 200, an air duct 210, a heater 220, a first introduction duct 230, a second introduction duct 240, a discharge duct 250, and a nozzle 260.
The blower 200 is a centrifugal blower of a high air volume/high static pressure type, and includes a blower case 201, a blower 202, and a blower motor 203. The blower housing 201 is made of a resin material, and has a suction port 204 formed in a bottom wall surface 201a thereof and a discharge port 205 formed in a peripheral wall surface 201b thereof. The fan 202 is disposed opposite to the suction port 204 in the fan housing 201. The fan motor 203 is disposed on the ceiling surface 201c of the fan housing 201, and the motor shaft 203a is connected to the fan 202 so as to face the inside of the fan housing 201.
When the fan 202 is rotationally driven by the fan motor 203, air is drawn into a central portion of the fan 202 through the suction port 204, and the drawn air is sent out to the outer periphery of the fan 202. Thereby, wind is generated in the fan case 201, and the generated wind is discharged from the discharge port 205. The maximum air volume of the blower 200 is set to, for example, 3m3The maximum static pressure is, for example, about 11kPa at a temperature of about/min.
The air duct 210 has a square box shape that is flat up and down, and is formed integrally with the blower housing 201 at the right side of the blower housing 201. The duct 210 is divided into a first duct 211 and a second duct 212 by a partition wall surface 213 extending laterally inside the duct. The first air passage 211 corresponds to a first air passage of the present invention, and the second air passage 212 corresponds to a second air passage of the present invention.
The first air passage 211 is long in the left-right direction, and a left end portion thereof is connected to the discharge port 205 of the fan casing 201. A first outlet 214 is formed in the bottom wall surface 211a at the right end of the first air passage 211. The air discharged from discharge port 205 flows in the right direction, i.e., through first outlet 214 in first air passage 211. Hereinafter, the wind flowing through the first air passage 211 is referred to as "first wind".
The blower 200 is a centrifugal fan, and the flow velocity of the air blown out from the outlet 205 is faster as the air approaches the outside of the fan case 201, i.e., the rear side in fig. 4 (a). Thus, in the first air passage 211, the flow velocity of the first air flowing toward the rear wall surface 211b is larger than the flow velocity of the first air flowing toward the partition wall surface 213, which is the front wall surface facing the rear wall surface 211 b. The rear wall surface 211b and the partition wall surface 213 are wall surfaces along the flow direction of the first wind. The rear wall surface 211b corresponds to the first wall surface of the present invention, and the partition wall surface 213 corresponds to the wall surface and the second wall surface of the present invention.
An opening 215 is formed in the partition wall surface 213 in the vicinity of the discharge port 205. The first air passage 211 and the second air passage 212 communicate with each other through the opening 215. A guide plate 216 is provided so as to protrude into the first air passage 211 from an edge portion of the opening portion 215 on the side opposite to the discharge port 205. The guide plate 216 is inclined toward the discharge port 205 from a direction perpendicular to the partition wall surface 213. Two flow regulating plates 217 are provided on the discharge port 205 side of the guide plate 216 so as to protrude from the opening 215, the flow regulating plates being parallel to the guide plate 216 and protruding less than the guide plate 216. The guide plate 216 corresponds to the wind guide unit and the wind decelerating unit of the present invention.
A part of the first air flowing through the first air passage 211 is caught by the guide plate 216, directed toward the opening 215 by being guided by the guide plate 216, and flows out into the second air passage 212 from the opening 215. At this time, a part of the wind directed toward the opening 215 is rectified by the rectifying plate 217 and smoothly flows toward the opening 215. However, since a part of the wind is temporarily stopped by the guide plate 216, the flow velocity thereof is reduced.
The second air passage 212 is long in the left-right direction and is adjacent to the front side of the first air passage 211. A second outlet 218 is formed in the bottom wall surface 212a at the right end of the second air passage 212.
The heater 220 is, for example, a PTC heater, and heats air passing through the inside thereof. Further, the heater 220 has a rectangular parallelepiped shape that is flat in the direction in which the wind passes. The heater 220 is disposed in the second air passage 212 so as to close the opening 215, that is, so as to have a flat direction equal to the opening direction of the opening 215.
A part of the air flowing into second air passage 212 through opening 215 passes through heater 220 and is heated by heater 220. Hereinafter, the wind heated by the heater 220 is referred to as "second wind". The second air flows in the second air passage 212 in a direction perpendicular to the opening direction of the opening 215 toward the second outlet 218.
The first introduction pipe 230 is a flexible pipe formed of an elastic material such as rubber, and has a bellows portion 231 at an intermediate portion thereof. An upper end of the first introduction duct 230 is connected to the first outlet 214 of the first air passage 211. The second introduction pipe 240 is a flexible pipe made of an elastic material such as rubber, and has a bellows portion 241 in an intermediate portion. An upper end of the second introduction duct 240 is connected to the second outlet 218 of the second air passage 212. The lead-out pipe 250 is a flexible pipe made of an elastic material such as rubber, and has a bellows portion 251 in an intermediate portion thereof. The upper end of the discharge duct 250 is connected to the suction port 204 of the fan casing 201.
As shown in fig. 3, the tub cover 22 has a first inlet 22b formed on the right side, a second inlet 22c formed in front of the first inlet 22b, and an outlet 22d formed on the left side, in the rear of the opening 22 a. The lower end of the first introduction pipe 230 is connected to the first introduction port 22 b. Further, the lower end of the second introduction duct 240 is connected to the second introduction port 22 c. Further, the lower end of the discharge duct 250 is connected to the discharge port 22 d. The second introduction port 22c corresponds to the introduction portion of the present invention.
The nozzle 260 has a hollow shape with a circular cross section which is gently curved toward the front of the nozzle 260, and a tip end 260a thereof has a tapered shape in which the front side and the rear side of the nozzle 260 are inclined. A rectangular slit-shaped outlet 261 extending in the left-right direction of the nozzle 260 is formed at the tip of the nozzle 260. In the present embodiment, the opening angle β formed by the opening direction D of the outlet 261 with respect to the axial direction L of the nozzle 260 is set to a range of, for example, 30 degrees to 60 degrees.
An annular flange 262 is provided at the upper end of the nozzle 260. The nozzle 260 is attached to the first introduction port 22b of the tub cover 22 from below by the flange portion 262. The nozzle 260 is connected to the lower end of the first introduction pipe 230 via the first introduction port 22 b.
In a state where the nozzle 260 is attached to the tub cover 22, the axial direction L of the nozzle 260 is parallel to the vertical direction, and thus the outlet 261 of the nozzle 260 faces obliquely downward with the opening angle β from the vertical direction. When the opening angle β of the air outlet 261 is too small, that is, when the opening direction D of the air outlet 261 is too close to the direct downward direction, the downward momentum of the air blown out from the air outlet 261 becomes too strong, and the vertical movement of the laundry is deteriorated. On the other hand, when the opening angle β of the air outlet 261 becomes excessively large, that is, when the opening direction D of the air outlet 261 is excessively close to the horizontal direction, the downward momentum of the warm air blown out from the air outlet 261 becomes excessively weak, and the wrinkle smoothing effect of the laundry described later becomes small. Accordingly, as described above, the opening angle β of the air outlet 261 is preferably set in the range of 30 degrees to 60 degrees.
Further, as shown in fig. 6, the nozzle 260 is disposed in the vicinity of the inner wall surface 24a of the washing and dehydrating tub 24 so as to avoid the balance ring 25 in the upper portion of the washing and dehydrating tub 24. The nozzle 260 is oriented such that the outlet 261 is not opened toward the center P of the pulsator 26 when the washing and dehydrating tub 24 is viewed from above. That is, when the clockwise direction in fig. 6 is the normal rotation direction a of the pulsator 26, and the counterclockwise direction in fig. 6 is the reverse rotation direction B of the pulsator 26, the air outlet 261 faces the normal rotation direction a. The air outlet 261 may be directed toward the reverse direction B. As indicated by the oval with oblique lines in fig. 6, the blow-out port 261 is directed to a region that is half from the center P of the pulsator 26, i.e., a region closer to the outer peripheral side than the length 1/2R shown in fig. 6.
Next, the operation of the full automatic washing and drying machine 1 will be described.
In the full automatic washing and drying machine 1, washing operation, washing drying operation, or drying operation of various operation modes is performed. The washing operation is an operation of performing only washing, and a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process are sequentially performed. The washing and drying operation is an operation of continuously performing washing to drying, and then the final dehydrating process performs a drying process. The drying operation is an operation of performing only drying, and only the drying process is performed.
In the washing process and the rinsing process, the pulsator 26 rotates in the forward rotation direction a and the reverse rotation direction B in a state where water is accumulated in the washing and dehydrating tub 24. A water flow is generated in the washing and dehydrating tub 24 by the rotation of the pulsator 26. During the washing process, the laundry is washed by the generated water flow and the detergent contained in the water. In the rinsing process, the laundry is rinsed by the generated water flow.
In the intermediate dehydration process and the final dehydration process, the washing dehydration tub 24 and the pulsator 26 are integrally rotated at a high speed. The laundry is dehydrated by the centrifugal force generated in the washing and dehydrating tub 24.
In the drying process, the blower 200 and the heater 220 are operated in the drying device 50. The high-speed wind is sent out as the first wind from the blower 200 to the ventilation duct 210. The first air blown into ventilation duct 210 mainly flows through first air passage 211, flows out of first outlet 214, passes through first introduction duct 230, and reaches nozzle 260 (see solid arrows in fig. 4 (a)). Then, the first air is blown out vigorously from the blow-out port 261 of the nozzle 260 toward the bottom of the washing and dehydrating tub 24, that is, the region on the outer peripheral side of the pulsator 26 shown in fig. 6. In the present embodiment, the flow velocity of the warm air immediately after being blown out from the outlet 261 of the nozzle 260, that is, the initial flow velocity is about 100 m/s. The initial flow velocity is preferably 50m/s or more, more preferably 80m/s or more. In this way, the warm air blown out from the blow-out port 261 has a significantly increased momentum compared to the warm air blown out into the washing and dehydrating tub 24 at a flow rate of about 20m/s in the conventional drying process.
On the other hand, of the first air blown into the ventilation duct 210, a part of the air passing through the partition wall surface 213 side is blocked by the guide plate 216, and flows out into the second air passage 212 from the opening 215 toward the opening 215 while reducing the flow velocity. A part of the air flowing out of the opening 215 is heated by the heater 220 to become second air having a high temperature, for example, about 80 ℃, and flows through the second air passage 212 and flows out of the second outlet 218. The second air flowing out of the second air passage 212 passes through the second introduction duct 240 and is introduced into the tub 20, i.e., the washing and dehydrating tub 24 from the second introduction port 22c (see the dotted arrow in fig. 4 (a)).
In the washing and dehydrating tub 24, the pulsator 26 repeats the rotation in the normal rotation direction a and the rotation in the reverse rotation direction B.
Fig. 7(a) and 7(b) are views schematically showing the movement of the laundry in the washing and dehydrating tub 24 during the drying process of the present embodiment. In fig. 7(a) and 7(b), only the pulsator 26, the nozzle 260, and the laundry are drawn.
When the pulsator 26 rotates, as shown in fig. 7(a), the laundry is pushed by the blade portions 110 of the pulsator 26, slides on the inclined surfaces 112 of the blade portions 110, and is thereby turned upward in the traveling direction of the blade portions 110. When the pulsator 26 rotates in the normal rotation direction a, the first wind from the nozzle 260 is blown vigorously against the laundry from a direction opposite to the forward direction of the reversed laundry. As shown in fig. 7(b), since the acceleration force in the traveling direction and the blowing force of the warm air act on the laundry in opposite directions, the laundry is spread horizontally by these forces, and the wrinkles of the laundry are smoothed out. Here, when the pulsator 26 performs agitation, although the laundry is easily gathered to the outer circumferential side of the pulsator 26 by a centrifugal force, warm air easily contacts the laundry, which is turned over on the outer circumferential side, because the blow-out port 261 of the nozzle 260 is directed to the region on the outer circumferential side of the pulsator 26.
Further, the inside of the tub 20, that is, the inside of the washing and dehydrating tub 24 is heated by the high-temperature second wind introduced from the second introduction port 22c, and thus the laundry is dried.
The air in the outer tub 20 is guided out from the guide outlet 22d, passes through the guide duct 250, and is sucked into the blower 200, i.e., the blower case 201.
< effects of the embodiment >
As described above, according to the present embodiment, since the first air is blown from the nozzle 260 to the laundry turned upward by the action of the inclined surface 112 of the pulsator 26, the laundry is easily spread in the washing and dehydrating tub 24, and wrinkles are not easily generated in the laundry during drying.
Further, according to the present embodiment, a part of the first wind flowing through the first duct 211 is decelerated by the guide plate 216 and flows out to the second duct 212 from the opening 215, and a part of the wind having a decreased flow velocity passes through the heater 220. Accordingly, a part of the air passing through the heater 220 is heated well, and as a result, the high-temperature second air can be generated in the second air passage 212. Then, the high-temperature second air is introduced to heat the inside of the tub 20, that is, the inside of the washing and dehydrating tub 24 satisfactorily. Therefore, the laundry can be dried well by the introduction of the second wind while suppressing the generation of wrinkles of the laundry by the blowing of the first wind. In addition, since it is not necessary to use a new blower for generating the second wind, only the blower 200 is required, and the increase of the cost is suppressed.
In the case of the configuration in which the first air flowing through the first air passage 211 at a high speed is heated by the heater 220, the first air cannot be heated well because it passes through the heater 220 quickly, and the first air does not easily reach a high temperature. Therefore, the inside of the outer tub 20, that is, the inside of the washing and dehydrating tub 24 cannot be heated well. This makes it difficult to form wrinkles in the laundry, but the drying performance is likely to be lowered.
Further, according to the present embodiment, since the opening portion 215 is provided in the partition wall surface 213 located on the side where the flow rate of the first air passing through the first air passage 211 is slow, a slower part of the air can be guided to the heater 220 of the second air passage 212 than in the case where the opening portion 215 is provided in the rear wall surface 211b, and the part of the air can be heated more favorably by the heater 220.
Further, according to the present embodiment, since the second air passage 212 is configured such that the second air direction flows in the direction orthogonal to the opening direction of the opening portion 215, and the heater 220 is disposed in the second air passage 212 so as to close the opening portion 215, that is, so that the flat direction is the same as the opening direction of the opening portion 215, the second air passage 212 can be made compact without increasing the size of the second air passage 212 in the direction orthogonal to the flow direction of the second air, that is, the width direction, as compared to the case where the heater 220 is disposed in the second air passage 212 so that the flat direction is parallel to the flow direction of the second air.
While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications other than those described above may be made to the embodiments of the present invention.
< example 1 of variation
Fig. 8 is a perspective view of drying apparatus 50 in a state in which the top surface of air duct 210 is omitted in modification 1.
In the present modification, a throttle 219 having a narrower flow passage than the other portions is provided downstream of the heater 220 in the second air passage 212. The throttle part 219 is configured such that a first protrusion 219a and a second protrusion 219b having a chevron shape face each other at a predetermined interval that forms a flow path narrower than the other part. In this way, when the choke 219 is provided, the second air tends to stay on the outlet side of the heater 220, and therefore, the flow velocity of the air introduced into the heater 220 can be further reduced, and the air passing through the heater 220 can be heated more favorably.
< modification 2 >
Fig. 9(a) is a perspective view of drying device 50 according to modification 2, and fig. 9(b) is a side view of nozzle 270 according to modification 2. Fig. 10 is a perspective sectional view of a main part of a drying apparatus 50 cut at a section B-B' in fig. 9(a) in modification 2.
In the drying apparatus 50 of the present modification, a nozzle 270 is provided instead of the nozzle 260 of the above embodiment. In addition, unlike the above embodiment, the second air passage 212 is not provided with the second outlet 218, and the second introduction duct 240 connected to the second outlet 218 is not provided. Instead, in the second air passage 212, a third outlet 281 is formed in the partition wall surface 213, and an outlet pipe 282 extends from the third outlet 281 to the center of the first outlet 214. At the end of the outflow pipe 282 on the first outflow port 214 side, coupling ribs 283 provided on both sides thereof are connected to the opening edge of the first outflow port 214. Thus, the outlet pipe 282 is fixed in the first air passage 211.
The upper portion 270a of the nozzle 270 has a cylindrical shape, and the lower portion 270b has a tapered shape and extends in an obliquely downward direction. A circular air outlet 271 is formed at the tip of the lower portion 270b of the nozzle 270. The opening angle β formed by the opening direction D of the outlet 271 with respect to the axial direction L of the nozzle 270 is preferably set in the range of 30 degrees to 60 degrees, as in the nozzle 260 of the above-described embodiment (see fig. 9 (b)).
An annular flange 272 is formed at the upper end of the nozzle 270, and a plurality of insertion holes 273 are formed in the flange 272. The nozzle 270 is attached to the first inlet port 22b of the tub cover 22 from below. At this time, a screw (not shown) inserted through the insertion hole 273 of the flange portion 272 is fixed to the periphery of the first introduction port 22 b. The nozzle 270 is connected to the lower end of the first introduction pipe 230 via the first introduction port 22 b.
Inside the nozzle 270, an introduction pipe 274 is provided integrally with the nozzle 270. The introduction pipe 274 has a shape curved in accordance with the curvature of the nozzle 270, and the introduction port 275 thereof opens toward the air outlet 271. The portion of the introduction pipe 274 near the introduction port 275 is fixed to the inner wall surface of the nozzle 270 by the coupling ribs 276 provided on both sides thereof. The introduction pipe 274 is connected to the outflow pipe 282 via a third introduction pipe 290 inserted into the first introduction pipe 230. The third introduction pipe 290 is a flexible pipe formed of an elastic material such as rubber, and has a bellows portion 291 at an intermediate portion thereof. The introduction pipe 274 corresponds to an introduction portion of the present invention.
In the drying device 50 of the present modification, the high-temperature second air generated in the second air duct 212 flows out from the third outlet 281, and the flowing-out second air passes through the outflow pipe 282, the third introduction duct 290, and the introduction pipe 274 and is discharged from the introduction port 275 (see the broken-line arrows in fig. 10). On the other hand, the first air flowing through first air passage 211 flows out of first outlet 214, flows through the periphery of third introduction duct 290 in first introduction duct 230, and reaches nozzle 270. The first air flowing into the nozzle 270 flows around the introduction pipe 274, and is blown out from the air outlet 271 together with the second air discharged from the introduction port 275 (see the solid arrows in fig. 10).
Thereby, the second wind is carried to the lower side of the washing and dehydrating tub 24 by the momentum of the first wind. Therefore, in the structure of the present modification, the inside of the outer tub 20, that is, the inside of the washing and dehydrating tub 24 can be efficiently heated by the second wind.
< other modification >
In the above embodiment, the nozzle 260 of the drying device 50 is disposed at the rear side of the opening 22a of the tub cover 22, i.e., at the rear side of the upper portion of the washing and dehydrating tub 24. However, the position of the nozzle 260 is not limited to this, and may be changed as appropriate. For example, the nozzle 260 may be disposed on the front side of the opening 22a of the outer tub cover 22.
Further, in addition to the nozzles 260, 270 and the pulsator 26, nozzles and pulsator of various shapes may be used.
The blower 200 may be a fan other than a centrifugal fan, and the heater 220 may be a heater other than a PTC heater.
In the above embodiment, the guide plate 216 causes a part of the first wind to flow out to the second air passage 212 after reducing the flow velocity thereof. However, the air speed reducer that reduces the speed of part of the first air may be configured other than the guide plate 216, or the flow speed of the air may be reduced before the second air passage 212 is heated by the heater 220. In this case, for example, the heater 220 may be disposed at a slight distance from the opening 215, and a resistance plate that forms resistance to wind may be disposed upstream of the heater 220.
In the above embodiment, the second introduction port 22c is provided in the tub cover 22, which is an upper portion of the tub 20. However, the second introduction port 22c may be provided at a lower portion of the sidewall of the tub 20, and the second introduction duct 240 may be extended to this position. In this case, the high-temperature second wind can be introduced from a lower position in the tub 20.
In addition, the embodiments of the present invention may be modified in various ways as appropriate within the scope of the technical idea shown in the claims.
Description of the reference numerals
1: a full-automatic washing and drying machine;
20: an outer tub;
22 c: a second introduction port (introduction part);
24: a washing dehydration barrel;
26: an impeller;
50: a drying device;
200: a blower;
201 b: a rear wall surface (first wall surface);
211: a first duct (first duct);
212: a second duct (second duct);
213: partition walls (wall, second wall);
215: an opening part;
216: a guide plate (wind guide part, wind speed reduction part);
219: a throttle section;
220: a heater;
260: a nozzle;
270: a nozzle;
274: an introduction pipe (introduction section).
Claims (6)
1. A washing and drying machine is characterized by comprising:
an outer tub elastically supported in the casing;
a washing and dehydrating tub rotatably disposed in the outer tub and accommodating laundry;
a drying device for drying the washings in the washing and dehydrating barrel; and
a pulsator rotatably disposed at the bottom of the washing and dehydrating tub,
the drying device includes:
a blower;
a first air passage through which first air sent from the blower flows;
a nozzle configured to blow the first air flowing through the first air passage from above toward a bottom of the washing and dehydrating tub;
an opening portion provided in the first duct, through which a part of the first air flowing through the first duct flows out;
a second air passage connected to the opening portion, through which the part of the air flows out;
a wind decelerating section for decelerating the part of the wind;
a heater provided in the second air passage and configured to heat the part of the air decelerated by the air decelerating portion; and
and a guide part for guiding the second wind into the outer barrel.
2. The washer-dryer according to claim 1,
the opening is formed in a wall surface of the first air passage along a flow direction of the first air,
the wind decelerating portion includes: and a wind guide portion provided in the first air passage and directed toward the opening so as to block the part of the wind flowing through the first air passage.
3. The washer-dryer according to claim 2,
the air blower is a centrifugal fan,
the first air that is blown out from the centrifugal fan and flows through the first air passage has a different flow velocity in a direction perpendicular to the flow of the first air,
the first air passage includes: a first wall surface which is located on the side where the flow velocity is fast and along the flow of the first wind; and a second wall surface facing the first wall surface and located on the side where the flow rate is slow,
the opening is formed in the second wall surface.
4. The washer-dryer according to any one of claims 1 to 3,
the second air passage has a structure in which the second air flow is directed in a direction orthogonal to the opening direction of the opening,
the heater heats the portion of the air passing through the heater, has a flat shape in a direction in which the portion of the air passes, and is disposed in the second air passage so as to close the opening.
5. The washer-dryer according to any one of claims 1 to 3,
the second air passage has a throttle portion downstream of the heater, the throttle portion having a flow path narrower than other portions.
6. The washer-dryer according to any one of claims 1 to 3,
the introduction part includes an introduction pipe passing through an inside of the nozzle and through which the second wind flows,
the first wind flows around the introduction pipe within the nozzle,
the second air flowing through the introduction pipe is blown out into the washing and dehydrating tub together with the first air.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016251649A JP6871564B2 (en) | 2016-12-26 | 2016-12-26 | Washing and drying machine |
| JP2016-251649 | 2016-12-26 | ||
| PCT/CN2017/118478 WO2018121497A1 (en) | 2016-12-26 | 2017-12-26 | Washing and drying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110100056A CN110100056A (en) | 2019-08-06 |
| CN110100056B true CN110100056B (en) | 2021-05-14 |
Family
ID=62706931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780080233.9A Active CN110100056B (en) | 2016-12-26 | 2017-12-26 | Washing and drying machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6871564B2 (en) |
| CN (1) | CN110100056B (en) |
| WO (1) | WO2018121497A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7174004B2 (en) * | 2020-03-24 | 2022-11-17 | 日立グローバルライフソリューションズ株式会社 | washing machine |
| CN113529379B (en) * | 2020-04-21 | 2022-12-20 | 无锡飞翎电子有限公司 | Base assembly for clothes dryer and clothes dryer with same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003135890A (en) * | 2001-11-05 | 2003-05-13 | Hitachi Ltd | Washer with drier and water-cooled heat exchanger |
| CN1651634A (en) * | 2004-02-06 | 2005-08-10 | 日立家用电器公司 | Washer |
| CN201785635U (en) * | 2010-02-11 | 2011-04-06 | 汪小江 | Novel full-automatic intelligent telescopic all-weather drying device |
| JP2014018502A (en) * | 2012-07-20 | 2014-02-03 | Panasonic Corp | Clothing treatment apparatus |
| EP2746458A1 (en) * | 2012-12-24 | 2014-06-25 | Electrolux Home Products Corporation N.V. | A method for controlling a laundry drying machine and a corresponding laundry drying machine |
| JP2015110035A (en) * | 2015-02-12 | 2015-06-18 | 象印マホービン株式会社 | Futon dryer |
| CN204455646U (en) * | 2015-01-20 | 2015-07-08 | 三峡大学 | A kind of clothing sterilization hot air drying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100379491B1 (en) * | 2001-02-05 | 2003-04-10 | 엘지전자 주식회사 | Outer tub for pulsator type wasing machine |
-
2016
- 2016-12-26 JP JP2016251649A patent/JP6871564B2/en active Active
-
2017
- 2017-12-26 WO PCT/CN2017/118478 patent/WO2018121497A1/en active Application Filing
- 2017-12-26 CN CN201780080233.9A patent/CN110100056B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003135890A (en) * | 2001-11-05 | 2003-05-13 | Hitachi Ltd | Washer with drier and water-cooled heat exchanger |
| CN1651634A (en) * | 2004-02-06 | 2005-08-10 | 日立家用电器公司 | Washer |
| CN201785635U (en) * | 2010-02-11 | 2011-04-06 | 汪小江 | Novel full-automatic intelligent telescopic all-weather drying device |
| JP2014018502A (en) * | 2012-07-20 | 2014-02-03 | Panasonic Corp | Clothing treatment apparatus |
| EP2746458A1 (en) * | 2012-12-24 | 2014-06-25 | Electrolux Home Products Corporation N.V. | A method for controlling a laundry drying machine and a corresponding laundry drying machine |
| CN204455646U (en) * | 2015-01-20 | 2015-07-08 | 三峡大学 | A kind of clothing sterilization hot air drying device |
| JP2015110035A (en) * | 2015-02-12 | 2015-06-18 | 象印マホービン株式会社 | Futon dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110100056A (en) | 2019-08-06 |
| WO2018121497A1 (en) | 2018-07-05 |
| JP2018102555A (en) | 2018-07-05 |
| JP6871564B2 (en) | 2021-05-12 |
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Effective date of registration: 20210422 Address after: No. 558, Jiaozhouwan West Road, Huangdao District, Qingdao, Shandong Province Applicant after: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Applicant after: AQUA Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Road, Qingdao hi tech Zone, Qingdao, Shandong Province, No. 1 Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant before: AQUA Co.,Ltd. |
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