WO2018121497A1

WO2018121497A1 - Washing and drying machine

Info

Publication number: WO2018121497A1
Application number: PCT/CN2017/118478
Authority: WO
Inventors: 山内智博
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社
Priority date: 2016-12-26
Filing date: 2017-12-26
Publication date: 2018-07-05
Also published as: CN110100056A; CN110100056B; JP6871564B2; JP2018102555A

Abstract

A washing and drying machine, being able to reduce the wrinkles generated in dried washing. A drying device (50) comprises: a first air flow path (211), for a first air flow fed from a blower (200) to flow through; a nozzle (260), blowing the first air flow, which flows through the first wind path (211), towards the bottom of the washing and dehydrating tub from the above; an opening portion (215), formed on a partition wall face (213) in the first air flow path (211); a second air flow path (212), connected to the opening portion (215) so that a part of the air flow flows through the opening portion (215); a guiding plate (216), decelerating part of the air flow and guiding said part to the opening portion (215); a heater (220), provided in the second air flow path (212) and heating the part of air flow which has been decelerated; and a second guiding port, guiding into an outer tub, a second air flow obtained by heating the part of the air flow by means of the heater (220).

Description

Washing and drying machine

Technical field

The present invention relates to a washer-dryer.

Background technique

In the past, a washing and drying machine has been known which is equipped with a so-called scroll type washing machine (automatic washing machine) which washes clothes by generating a water flow in a washing and dewatering tank by a pulsator disposed at the bottom of the washing and dewatering tub. The drying function of the clothes. For example, Patent Document 1 describes an example of such a washer-dryer.

In the washer-dryer of Patent Document 1, a warm air supply unit for supplying high-temperature air to the washing and dewatering tub is disposed on the upper surface plate having the laundry inlet. The opening of the upper surface of the tub provided with the washing and dewatering tub is covered by an outer tub having an inner lid. The warm air generated by the warm air supply unit is blown out from the upper direction of the outer tub by the warm air duct connected to the outer tub. In the washing and dewatering bucket, the laundry is stirred by a pulsator.

Prior art literature

Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-054368

Summary of the invention

Problems to be solved by the invention

In the above-described washing and drying machine, since the laundry is stirred by the pulsator, it is difficult to move the laundry in any case. Thus, it is feared that it is easy to be dried in a state where the laundry is shrunk, and wrinkles are easily generated on the dried laundry.

The present invention has been made in view of such problems, and an object thereof is to provide a washing and drying machine capable of reducing wrinkles generated in a laundry to be dried.

Solution to solve the problem

The washing and drying machine of the main aspect of the present invention comprises: an outer tub elastically supported in the casing; a washing dewatering bucket rotatably disposed in the outer tub and containing the washing; and a drying device for drying Drying the laundry in the washing and dewatering tub; and a pulsator rotatably disposed at a bottom of the washing and dewatering tub. Here, the drying device includes: a blower; a first air passage for flowing a first wind sent from the blower; and a nozzle for directing the first wind flowing through the first air passage from above to The bottom of the washing and dewatering tub is blown out; the opening portion is disposed in the first air passage, and a part of the wind of the first wind flowing through the first air passage flows out; the second air passage, and the opening portion Connected, the part of the wind flows out from the opening; the wind deceleration unit decelerates the part of the wind; and the heater is disposed in the second air path, and the part is decelerated by the wind deceleration unit The wind is heated; and the introduction portion is configured to introduce the second wind, which is heated by the heater, into the outer tub.

According to the above configuration, the first wind can be violently blown from the nozzle to the laundry, and therefore, the laundry is easily spread in the washing and dewatering tub, and wrinkles are not easily generated on the laundry during drying. Further, a part of the wind of the first wind flowing through the first air passage is heated by the heater in the second air passage after the flow velocity thereof is lowered by the wind speed reducing portion, so that the wind contacting the heater is heated well, and as a result Yes, a second wind that generates a high temperature in the second air path. Then, by introducing a high-temperature second wind, the inside of the outer tub can be heated well. Thereby, the generation of wrinkles of the laundry can be suppressed by the blowing of the first wind, and the laundry can be satisfactorily dried by the introduction of the second wind.

In the washer-dryer of the present aspect, the opening portion may be formed in a wall surface along the flow direction of the first wind in the first air passage. In this case, the wind deceleration portion includes a wind guide portion that is provided in the first air passage to face the portion of the wind flowing through the first air passage to face the wind The opening is described.

According to the above configuration, a part of the wind is stopped by the wind guiding portion, thereby being decelerated and guided to the opening portion. Thereby, the wind which reduces the flow velocity can flow out to the second air passage.

In the case where the above configuration is employed, the centrifugal fan may be used as the blower. In this case, there may be a case where the first wind sent from the centrifugal fan and flowing through the first air passage has a different flow velocity in a direction perpendicular to the flow of the first wind. Therefore, it is possible to adopt a configuration in which the first air passage includes: a first wall surface along a flow of the first wind and located on a side where the flow velocity is fast; and a second wall surface, and the first One wall faces and is located on the slow side of the flow rate, and the opening is formed in the second wall surface.

According to this configuration, the wind having a slower flow velocity can be guided to the heater of the second air passage, and the wind can be heated more favorably by the heater.

In the washer-dryer of the present aspect, the second air passage may have a configuration in which the second wind flow direction is orthogonal to the opening direction of the opening portion, and the heater pair The part of the wind is heated by the inside of the part, and has a flat shape in a direction in which the part of the wind passes, and is disposed in the second air passage so as to block the opening.

According to the configuration described above, the heater is disposed in the second air passage so as to block the opening, that is, the flat direction is the same as the opening direction of the opening. Therefore, the heater is in the flat direction and the second wind. When the flow direction is parallel to the second air passage, the second air passage can be made larger in the direction orthogonal to the flow direction of the second wind, that is, in the width direction, and the second air passage can be made. compact.

In the washer-dryer of the present aspect, the second air passage may have a throttle portion having a narrower flow path than other portions downstream of the heater.

According to the above configuration, since the second wind easily stays on the outlet side of the heater, the flow velocity of the wind introduced into the heater can be further reduced, and the wind passing through the heater can be heated more satisfactorily.

In the washer-dryer of the present aspect, it is possible to adopt a configuration in which the introduction portion includes an introduction tube that passes through the inside of the nozzle and through which the second wind flows. In this case, the first wind flows around the introduction tube in the nozzle, and the second wind flowing through the introduction tube is blown out together with the first wind into the washing and dewatering tank. .

According to the above configuration, the second wind can be transported to the lower side 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.

Effect of the invention

According to the present invention, it is possible to provide a washer-dryer capable of reducing wrinkles generated on a dried laundry.

The effects and significance of the present invention will become more apparent from the following description of embodiments. However, the following embodiments are an exemplification of the present invention, and the present invention is not limited by the contents described in the following embodiments.

DRAWINGS

1 is a side cross-sectional view of a fully automatic washer-dryer of an embodiment.

Fig. 2 is a perspective view of the pulsator of the embodiment.

3 is a perspective view showing a state in which a drying device is provided above the outer tub cover according to the embodiment.

Fig. 4 (a) is a perspective view of the drying device in a state in which the top surface of the air duct is omitted in the embodiment, and Fig. 4 (b) is a cross-sectional view of the air blower cut in the line AA' of Fig. 4 (a) in the embodiment. .

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 air outlet of a nozzle when the washing and dewatering tub is viewed from above in the embodiment.

7(a) and 7(b) are diagrams schematically showing movement of laundry in the washing and dewatering tub during the drying process of the embodiment.

8 is a perspective view of the drying device in a state in which the top surface of the air duct is omitted in the first modification.

Fig. 9 (a) is a perspective view of a drying device according to a second modification, and Fig. 9 (b) is a side view of the nozzle of the second modification.

Fig. 10 is a perspective cross-sectional view showing a main part of a drying apparatus cut along a line B-B' of Fig. 9(a) in a second modification.

detailed description

Hereinafter, a fully automatic washer-dryer 1 as an embodiment of the washer-dryer of the present invention will be described with reference to the drawings.

Fig. 1 is a side cross-sectional view of the fully automatic washer-dryer 1 of the present embodiment.

The fully automatic washing and drying machine 1 is provided with a casing 10 constituting an appearance. The casing 10 includes a square tubular body portion 11 in which upper and lower surfaces are opened, an upper surface plate 12 covering the upper surface of the body portion 11, and a footrest 13 supporting the body portion 11. In the upper surface plate 12, an input port 14 for feeding the laundry is formed. The inlet 14 is covered by a freely open upper cover 15.

Inside the casing 10, the outer tub 20 is elastically suspended and supported by four booms 21 having anti-vibration means. The upper surface of the outer tub 20 is covered by the outer tub cover 22. In the outer tub cover 22, an opening 22a having a size substantially equal to that of the input port 14 is formed at a position corresponding to the input port 14. The opening portion 22a is covered by the inner lid 23 so as to be openable and closable.

In the outer tub 20, a substantially cylindrical washing and dewatering tub 24 whose upper surface is opened is disposed. On the inner wall surface 24a of the washing and dewatering tub 24, a plurality of dewatering holes 24b are formed over the entire circumference. At the upper portion of the washing and dewatering tub 24, a balance ring 25 is provided. At the bottom of the washing and dewatering tub 24, a pulsator 26 is disposed.

At the outer bottom of the outer tub 20, a drive unit 30 that generates a torque that drives the washing and dewatering tub 24 and the pulsator 26 is disposed. The drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32. The transmission mechanism portion 32 has a clutch mechanism by which the torque of the drive motor 31 is transmitted only to the pulsator 26 and only the pulsator 26 is rotated during the washing process and the rinsing process, during the dehydration process, The torque of the drive motor 31 is transmitted to the pulsator 26 and the washing and dewatering tub 24 to integrally rotate the pulsator 26 and the washing and dewatering tub 24.

At the outer bottom of the outer tub 20, a drain port portion 20a is formed. A drain valve 40 is provided in the drain port portion 20a. The drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water accumulated in the washing and dewatering tub 24 and the tub 20 is discharged to the outside of the body through the drain hose 41.

At the rear of the upper surface plate 12, a housing portion 12a having an open upper surface is provided. The upper surface of the housing portion 12a is covered by the rear cover 16. In the accommodating portion 12a, a drying device 50 for drying the laundry in the washing and dewatering tub 24 and a water supply device (not shown) for supplying water into the outer tub 20 are housed.

Next, the configuration 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 susceptor 100, two blade portions 110 formed on the surface of the susceptor 100 at intervals of 180 degrees, and two wall portions 120 formed on the outer periphery of the susceptor 100. The surface of the susceptor 100 is slowly inclined upward toward the center portion 101.

Each of the blade portions 110 extends radially from the central portion 101 of the susceptor 100 to the outer peripheral edge. In each of the blade portions 110, a flat inclined surface 112 for pushing the laundry upward is formed on both sides of the top portion 111 extending in the horizontal direction in a straight line. The inclination angle α of the inclined surface 112 with respect to the surface perpendicular to the rotation axis direction X of the pulsator 26 is, for example, 45 degrees. When the inclination angle α is too small, when the drying is performed by the drying device 50, when the pulsator 26 is rotated, the laundry that climbs the inclined surface 112 cannot be lifted up high. On the contrary, when the inclination angle α is excessively large, it is difficult for the laundry to climb up the inclined surface 112 when the pulsator 26 rotates. Therefore, it is preferable that the inclination angle α is set in the range of 30 degrees to 60 degrees.

A plurality of water passing holes 130 are formed in the surface of the susceptor 100 and the blade portion 110. The water passing hole 130 passes water to the inner side of the pulsator 26.

The wall portion 120 is formed in an arc shape so as to be along the outer periphery of the susceptor 100. When the pulsator 26 rotates, when the laundry placed on the surface of the susceptor 100 is to be moved toward the inner wall surface 24a side of the washing and dewatering tub 24 by centrifugal force, the wall portion 120 blocks the laundry from being inclined toward the blade portion 110. Face 112. Thereby, the laundry is well inverted by the inclined surface 112.

Next, the configuration of the drying device 50 will be described in detail.

3 is a perspective view showing a state in which the drying device 50 is provided above the outer tub cover 22 according to the embodiment. Fig. 4 (a) is a perspective view of the drying device 50 in a state in which the top surface of the air duct 210 is omitted in the embodiment, and Fig. 4 (b) is cut in the line AA' of Fig. 4 (a) of the present embodiment. A cross-sectional view of the blower 200. 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 view for explaining a direction of the air outlet 261 of the nozzle 260 when the washing and dewatering tub 24 is viewed from above in the present embodiment.

The drying device 50 includes a blower 200, a vent pipe 210, a heater 220, a first introduction pipe 230, a second introduction pipe 240, a discharge pipe 250, and a nozzle 260.

The blower 200 is a high air volume/high static pressure type centrifugal fan, and includes a fan casing 201, a fan 202, and a fan motor 203. The fan casing 201 is formed of a resin material, and a suction port 204 is formed in the bottom wall surface 201a, and a discharge port 205 is formed in the peripheral wall surface 201b. The fan 202 is configured to oppose the suction port 204 within the fan casing 201. The fan motor 203 is disposed on the top wall surface 201c of the fan casing 201, and the motor shaft 203a faces the fan casing 201 and is coupled to the fan 202.

When the blower 202 is rotationally driven by the blower motor 203, air is drawn into the central portion of the blower 202 through the suction port 204, and the sucked air is sent out to the outer circumference of the blower 202. Thereby, wind is generated in the fan casing 201, and the generated wind is sent out from the discharge port 205. The maximum air volume of the blower 200 is, for example, about 3 m ³ /min, and the maximum static pressure is, for example, about 11 kPa.

The vent pipe 210 has a square box shape that is flattened up and down, and is integrally formed with the fan casing 201 on the right side of the fan casing 201. The air duct 210 is divided into a first air path 211 and a second air path 212 by a partition wall surface 213 extending left and right inside thereof. It should be noted that the first air passage 211 corresponds to the first air passage of the present invention, and the second air passage 212 corresponds to the second air passage of the present invention.

The first air passage 211 is long in the left-right direction, and the left end portion is connected to the discharge port 205 of the fan casing 201. At the right end portion of the first air passage 211, a first outflow port 214 is formed in the bottom wall surface 211a. The wind sent from the discharge port 205 flows in the first air passage 211 toward the right direction, that is, the first outflow port 214. 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 wind sent from the discharge port 205 is closer to the outside of the fan casing 201, that is, the flow velocity on the rear side of Fig. 4(a) is faster. Thereby, in the first air passage 211, the flow velocity of the first wind flowing on the side of the rear wall surface 211b is larger than the flow velocity of the first wind flowing on the side of the partition wall surface 213 which is the front wall surface facing the rear wall surface 211b. The rear wall surface 211b and the partition wall surface 213 are wall surfaces along the flow direction of the first wind. It should be noted that 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.

In the partition wall surface 213, an opening portion 215 is formed 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 portion 215. A guide sheet 216 is provided so as to protrude from the edge portion of the opening 215 opposite to the discharge port 205 into the first air passage 211. The guide sheets 216 are inclined from the direction perpendicular to the partition wall surface 213 toward the discharge port 205 side. On the discharge port 205 side of the guide plate 216, two rectifying plates 217 which are parallel to the guide sheets 216 and have a smaller amount of projection than the guide sheets 216 are provided so as to protrude from the opening portions 215. It should be noted that the guide plate 216 corresponds to the wind guide portion and the wind speed reducing portion of the present invention.

A part of the wind of the first wind flowing through the first air passage 211 is stopped by the guide plate 216, and is guided toward the opening portion 215 by the guide plate 216, and flows out from the opening portion 215 into the second air passage 212. At this time, a part of the wind that has entered the opening 215 is rectified by the rectifying plate 217 and smoothly flows into the opening 215. However, since a part of the wind is temporarily stopped by the guide sheets 216, the flow rate thereof is lowered.

The second air passage 212 has a long dimension in the left-right direction and is adjacent to the front side of the first air passage 211. At the right end portion of the second air passage 212, a second outflow port 218 is formed in the bottom wall surface 212a.

The heater 220 is, for example, a PTC heater that heats the wind 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 block the opening portion 215, that is, in the flat direction and the opening direction of the opening portion 215.

A part of the wind that has flowed out through the opening 215 into the second air passage 212 passes through the heater 220 and is heated by the heater 220. Hereinafter, the wind heated by the heater 220 is referred to as "second wind". The second wind flows in the second air passage 212 toward the second outflow port 218 in a direction orthogonal to the opening direction of the opening portion 215.

The first introduction duct 230 is a flexible duct formed of an elastic material such as rubber and has a bellows portion 231 at an intermediate portion. The upper end portion of the first introduction duct 230 is connected to the first outflow port 214 of the first air passage 211. Further, the second introduction duct 240 is a flexible duct formed of an elastic material such as rubber and has a bellows portion 241 at an intermediate portion. The upper end portion of the second introduction duct 240 is connected to the second outflow port 218 of the second air passage 212. Further, the outlet duct 250 is a flexible duct formed of an elastic material such as rubber and has a bellows portion 251 at an intermediate portion. The upper end portion of the outlet duct 250 is connected to the suction port 204 of the fan casing 201.

As shown in FIG. 3, in the outer tub cover 22, in the rear of the opening 22a, a first introduction port 22b is formed on the right side, a second introduction port 22c is formed in front of the first introduction port 22b, and a left introduction port 22c is formed on the left side. The outlet 22d. The lower end portion of the first introduction duct 230 is connected to the first introduction port 22b. Further, the lower end portion of the second introduction duct 240 is connected to the second introduction port 22c. Further, the lower end portion of the outlet duct 250 is connected to the outlet port 22d. It should be noted that the second introduction port 22c corresponds to the introduction portion of the present invention.

The nozzle 260 has a circular hollow shape that is gradually curved toward the front of the nozzle 260, and the distal end portion 260a has a shape in which the front end and the rear side of the nozzle 260 are tapered. At the tip end of the nozzle 260, a rectangular slit-shaped air outlet 261 extending in the left-right direction of the nozzle 260 is formed. In the present embodiment, the opening angle β formed in the opening direction D of the air outlet 261 with respect to the axial direction L of the nozzle 260 is set, for example, in the range of 30 degrees to 60 degrees.

An annular flange portion 262 is provided at an upper end portion of the nozzle 260. The nozzle 260 is attached to the first introduction port 22b of the outer tub cover 22 from below by the flange portion 262. The nozzle 260 is connected to the lower end portion of the first introduction duct 230 via the first introduction port 22b.

In the state in which the nozzle 260 is attached to the outer tub cover 22, the axial direction L of the nozzle 260 is parallel to the vertical direction, whereby the air outlet 261 of the nozzle 260 has an opening angle β from the vertical direction and is directed obliquely downward. 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 wind blown from the air outlet 261 becomes too strong, and the up and down movement of the laundry becomes difference. 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 too close to the horizontal direction, the downward momentum of the warm air blown from the air outlet 261 becomes It is weak, and the wrinkle smoothing effect of the laundry described later becomes small. Therefore, as described above, it is preferable that the opening angle β of the air outlet 261 is set to a 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 dewatering tub 24 so as to avoid the balance ring 25 at the upper portion of the washing and dewatering tub 24. Then, the orientation of the nozzle 260 is set such that the air outlet 261 opens in a direction that does not face the center P of the pulsator 26 when the washing and dewatering tub 24 is viewed from above. That is, when the clockwise direction of FIG. 6 is the forward rotation direction A of the pulsator 26, and the counterclockwise direction of FIG. 6 is the reverse rotation direction B of the pulsator 26, the air outlet 261 faces the normal rotation direction A side. It should be noted that the air outlet 261 may also face the reverse direction B side. Further, as shown by the ellipses in FIG. 6, the direction of the blowout port 261 is a region which is halfway from the center P of the pulsator 26, that is, the length of 1/2R shown in FIG. 6 is further on the outer peripheral side.

Next, the operation of the fully automatic washing and drying machine 1 will be described.

In the fully automatic washer-dryer 1, the washing operation, the washing and drying operation, or the drying operation of various operation modes are performed. The washing operation is an operation in which only washing is performed, and the washing process, the intermediate dehydration process, the rinsing process, and the final dehydration process are sequentially performed. The washing and drying operation is a continuous washing to drying operation, and then the final dehydration process is performed. The drying operation is an operation in which only drying is performed, and only the drying process is performed.

In the washing process and the rinsing process, the pulsator 26 is rotated in the normal rotation direction A and the reverse rotation direction B in a state where water is accumulated in the washing and dewatering tub 24. A flow of water is generated in the washing and dewatering tub 24 by the rotation of the pulsator 26. During the washing process, the laundry is washed by the generated water stream and the detergent contained in the water. During the rinsing process, the laundry is rinsed through the resulting water stream.

During the intermediate dewatering process and the final dewatering process, the washing and dewatering tub 24 and the pulsator 26 are integrally rotated at a high speed. The laundry is dehydrated by the action of centrifugal force generated in the washing dewatering bucket 24.

In the drying process, the blower 200 and the heater 220 operate in the drying device 50. The high-speed wind is sent from the blower 200 to the air duct 210 as the first wind. The first wind sent to the air duct 210 mainly flows through the first air passage 211 and flows out from the first air outlet 214, and passes through the first introduction duct 230 to reach the nozzle 260 (refer to the solid arrow in Fig. 4(a)). Then, the first wind is blown vigorously from the blowing port 261 of the nozzle 260 toward the bottom of the washing and dewatering 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 that has just been blown out from the air outlet 261 of the nozzle 260, that is, the initial flow velocity is about 100 m/s. In addition, it is preferable that the initial flow rate is 50 m/s or more, and it is preferable to set it as 80 m/s or more. As described above, the warm air blown from the air outlet 261 is greatly enhanced compared with the warm air current of about 20 m/s which is blown into the washing and dewatering tub 24 in the conventional drying process.

On the other hand, in the first wind sent to the air duct 210, a part of the wind passing through the partition wall surface 213 side is stopped by the guide plate 216, and the flow velocity thereof is lowered and directed toward the opening portion 215 from the opening portion 215 to the second air passage 212. Flow out. A part of the wind that has flowed out from the opening 215 is heated by the heater 220, and becomes a second air having a high temperature of, for example, about 80 ° C, flows through the second air passage 212, and flows out from the second outlet 218. The second wind that has flowed out from the second air passage 212 passes through the second introduction duct 240, and is introduced into the outer tub 20 from the second introduction port 22c, that is, in the washing and dewatering tub 24 (see a broken line arrow in Fig. 4(a)).

In the washing and dewatering tub 24, the pulsator 26 repeats the rotation of the forward rotation direction A and the rotation of the reverse rotation direction B.

7(a) and 7(b) are diagrams schematically showing the movement of the laundry in the washing and dewatering tub 24 in the drying process of the present embodiment. In Fig. 7 (a) and Fig. 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 portion 110 of the pulsator 26, and slides on the inclined surface 112 of the blade portion 110, whereby the laundry is moved toward the blade portion 110. Flip the top of the direction. In the case where the pulsator 26 is rotated in the forward rotation direction A, the first wind from the nozzle 260 is violently blown toward the laundry in a direction opposite to the direction in which the reversed laundry advances. As shown in Fig. 7(b), on the laundry, the acceleration force in the traveling direction and the blowing force of the warm air act in opposite directions, so that the laundry is spread in the horizontal direction by these forces, and the wrinkles of the laundry are swayed. level. In the case where the pulsator 26 is agitated, the laundry is easily collected on the outer peripheral side of the pulsator 26 by the centrifugal force. However, since the direction of the outlet 261 of the nozzle 260 is the outer peripheral side of the pulsator 26, the warmth is warm. The wind easily comes into contact with the laundry that is turned over on the outer peripheral side.

Further, the inside of the outer tub 20, that is, the inside of the washing and dewatering tub 24 is heated by the high-temperature second air introduced from the second introduction port 22c, whereby the laundry is dried.

It should be noted that the air in the outer tub 20 is led out from the outlet port 22d, and is sucked into the blower 200, that is, the fan casing 201 through the outlet duct 250.

As described above, according to the present embodiment, the first wind is violently blown from the nozzle 260 toward the laundry that is turned upward by the action of the inclined surface 112 of the pulsator 26. Therefore, the laundry is easily spread in the washing and dewatering bucket 24. It is not easy to produce wrinkles on the laundry when drying.

Further, according to the present embodiment, a part of the wind of the first wind flowing through the first air passage 211 is decelerated by the guide plate 216 and flows out from the opening portion 215 to the second air passage 212, and a part of the wind having a reduced flow velocity passes through the heater 220. Thereby, a part of the wind passing through the heater 220 is heated well, and as a result, a high-temperature second wind can be generated in the second air passage 212. Then, by introducing the second air at a high temperature, the inside of the outer tub 20, that is, the washing and dewatering tub 24 can be heated well. Therefore, the generation of wrinkles of the laundry can be suppressed by the blowing of the first wind, and the laundry can be satisfactorily dried by the introduction of the second wind. Moreover, in order to generate the second wind, it is not necessary to use a new blower, and only the blower 200 can be used, which suppresses an increase in cost.

It should be noted that in the case where the first wind that flows through the first air passage 211 at a high speed is heated by the heater 220, since the heater 220 is quickly passed, the first wind cannot be heated well, and the first wind is not It is easy to become high temperature. Therefore, the inside of the outer tub 20, that is, the inside of the washing and dewatering tub 24 cannot be heated well. Thereby, although the wrinkles of the laundry are not easily generated, the drying performance is liable to lower.

Further, according to the present embodiment, since the opening portion 215 is provided in the partition wall surface 213 on the side where the flow velocity of the first wind passing through the first air passage 211 is slow, the opening portion 215 is provided on the rear wall surface 211b. In contrast, a portion of the slower wind can be directed to the heater 220 of the second air passage 212, and this portion of the wind can be heated more well by the heater 220.

Further, according to the present embodiment, the second air passage 212 is configured such that the second wind direction flows in a direction orthogonal to the opening direction of the opening portion 215, and the heater 220 blocks the opening portion 215, that is, in a flat direction and an opening portion. Since the opening direction of the 215 is disposed in the second air passage 212 in the same manner, the heater 220 can be disposed in the second air passage 212 so that the flat direction is parallel to the flow direction of the second wind. The second air passage 212 is made larger in the direction orthogonal to the flow direction of the second wind, that is, in the width direction, and the second air passage 212 and the air duct 210 can be made compact.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and the like, and various modifications other than the above may be made in the embodiments of the present invention.

FIG. 8 is a perspective view of the drying device 50 in a state in which the top surface of the air duct 210 is omitted in the first modification.

In the present modification, in the second air passage 212, a throttle portion 219 having a narrower flow path than other portions is provided downstream of the heater 220. The throttle portion 219 has a configuration in which the mountain-shaped first projection 219a and the second projection 219b are opposed to each other to form a predetermined interval narrower than the other portions. As described above, when the throttle unit 219 is provided, the second wind easily stays on the outlet side of the heater 220. Therefore, the flow velocity of the wind introduced into the heater 220 can be further reduced, and the heater 220 can be heated more favorably. wind of.

Fig. 9 (a) is a perspective view of the drying device 50 of Modification 2, and Fig. 9 (b) is a side view of the nozzle 270 of Modification 2. Fig. 10 is a perspective cross-sectional view showing the main part of the drying device 50 cut along the line B-B' of Fig. 9(a) in the second modification.

In the drying device 50 of the present modification, a nozzle 270 is provided instead of the nozzle 260 of the above embodiment. Further, unlike the above embodiment, the second air outlet 212 is not provided with the second air outlet 218, and the second air inlet duct 240 connected to the second air outlet 218 is not provided. Instead, in the second air passage 212, a third outflow port 281 is formed in the partition wall surface 213, and the outflow pipe 282 extends from the third outflow port 281 to the central portion of the first outflow port 214. At the end portion of the outflow pipe 282 on the side of the first outflow port 214, the connecting ribs 283 provided on both sides thereof are connected to the opening edge portion of the first outflow port 214. Thereby, the outflow 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 shape in which the tip end is tapered and extends obliquely downward. At the top end of the lower portion 270b of the nozzle 270, a circular air outlet 271 is formed. The opening angle β of the opening direction D of the air outlet 271 with respect to the axial direction L of the nozzle 270 is the same as that of the nozzle 260 of the above-described embodiment, and is preferably set to a range of 30 to 60 degrees (see FIG. 9(b)).

An annular flange portion 272 is formed at the upper end of the nozzle 270, and a plurality of insertion holes 273 are formed in the flange portion 272. The nozzle 270 is attached to the first introduction port 22b of the outer tub cover 22 from below. At this time, a screw (not shown) that passes through the insertion hole 273 of the flange portion 272 is fixed around the first introduction port 22b. The nozzle 270 is connected to the lower end portion of the first introduction duct 230 via the first introduction port 22b.

Inside the nozzle 270, the introduction tube 274 is integrally provided with the nozzle 270. The introduction tube 274 has a shape that is curved corresponding to the curvature of the nozzle 270, and the introduction port 275 is opened toward the air outlet 271. The vicinity of the introduction port 275 of the introduction pipe 274 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 inside of the first introduction pipe 230. The third introduction duct 290 is a flexible duct formed of an elastic material such as rubber and has a bellows portion 291 at an intermediate portion. It should be noted that the introduction tube 274 corresponds to the introduction portion of the present invention.

In the drying device 50 of the present modification, the high-temperature second wind generated by the second air passage 212 flows out from the third outlet 281, and the outflowing second wind passes through the outflow pipe 282, the third introduction pipe 290, and the introduction. The tube 274 is discharged from the introduction port 275 (refer to the dotted arrow in Fig. 10). On the other hand, the first wind flowing through the first air passage 211 flows out from the first outlet 214, flows through the third introduction duct 290 in the first introduction duct 230, and reaches the inside of the 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 arrow in Fig. 10).

Thereby, the second wind is transported below the washing and dewatering tub 24 by the momentum of the first wind. Therefore, in the configuration of the present modification, the inside of the outer tub 20, that is, the inside of the washing and dewatering tub 24 can be efficiently heated by the second wind.

In the above embodiment, the nozzle 260 of the drying device 50 is disposed on the rear side of the opening portion 22a of the outer tub cover 22, that is, on the rear side of the upper portion of the washing and dewatering tub 24. However, the position of the nozzle 260 is not limited to this, and can be appropriately changed. For example, the nozzle 260 may be disposed on the front side of the opening portion 22a of the outer tub cover 22.

Further, in addition to the

nozzles

260, 270 and the pulsator 26, various shapes of nozzles and pulsators can be used.

Further, the blower 200 may be a fan other than the centrifugal fan, and the heater 220 may be a heater other than the PTC heater.

Further, in the above embodiment, a part of the wind of the first wind flows out to the second air passage 212 after the flow velocity is lowered by the guide plate 216. However, the wind speed reducing portion that decelerates a part of the wind of the first wind may be configured other than the guide plate 216, and the flow velocity of the wind may be lowered before the heater 220 is heated in the second air passage 212. In this case, for example, the heater 220 may be disposed at a slight distance from the opening 215, and a resistance plate for forming a resistance to wind may be disposed on the upstream side of the heater 220.

Further, in the above embodiment, the second introduction port 22c is provided in the upper portion of the outer tub 20, that is, the outer tub cover 22. However, it is also possible to adopt a configuration in which the second introduction port 22c is provided in the lower portion of the side wall of the outer tub 20, and the second introduction duct 240 extends to this position. In this case, the high-temperature second wind can be introduced from the lower portion of the outer tub 20.

In addition, the embodiments of the present invention can be variously modified as appropriate within the scope of the technical spirit of the claims.

Description of the reference numerals

1: fully automatic washing and drying machine;

20: outer tub;

22c: second inlet (introduction);

24: washing the dewatering bucket;

26: pulsator;

50: drying device;

200: blower;

201b: rear wall surface (first wall surface);

211: the first wind road (the first wind path);

212: second wind path (second wind path);

213: dividing the wall surface (wall surface, second wall surface);

215: an opening portion;

216: guide plate (wind guide portion, wind speed reduction portion);

219: Throttling Department;

220: a heater;

260: nozzle;

270: nozzle;

274: Introduction tube (introduction unit).

Claims

A washer-drying machine characterized by having:

The outer tub is elastically supported in the casing;

Washing the dewatering bucket, rotatably disposed in the outer tub, and containing the laundry;

a drying device for drying the laundry in the washing and dewatering tub;

a pulsator rotatably disposed at a bottom of the washing and dewatering bucket

The drying device comprises:

Blower;

a first air passage for the first wind to be sent from the blower;

a nozzle that blows the first wind flowing through the first air passage from the top toward the bottom of the washing and dewatering bucket;

An opening portion is disposed in the first air passage, and a part of the wind of the first wind flowing through the first air passage flows out;

a second air passage connected to the opening portion for the part of the wind to flow out from the opening portion;

a wind deceleration portion that decelerates the portion of the wind;

a heater disposed on the second air passage to heat the portion of the wind decelerated by the wind speed reducing portion;

The introduction unit introduces a second wind in which a part of the wind is heated by the heater into the outer tub.
A washer-dryer according to claim 1, wherein

The opening portion is formed in a wall surface of the first air passage along a flow direction of the first wind,

The wind deceleration portion includes: a wind guiding portion that is disposed on the first air passage to block the portion of the wind flowing through the first air passage to face the opening portion .
A washer-dryer according to claim 2, wherein

The blower is a centrifugal fan,

The first wind sent from the centrifugal fan and flowing through the first air passage is different in flow velocity in a direction perpendicular to the flow of the first wind,

The first air passage includes: a first wall surface along a flow of the first wind and located on a side of the flow velocity; and a second wall surface facing the first wall and located at the Slow side,

The opening portion is formed on the second wall surface.
A washer-dryer according to any one of claims 1 to 3, characterized in that

The second air passage has a configuration in which the second wind flow direction is orthogonal to an opening direction of the opening portion,

The heater heats the part of the wind passing through the inside thereof, and has a flat shape in a direction in which the part of the wind passes, and is disposed in the second air passage so as to block the opening.
A washer-dryer according to any one of claims 1 to 4, characterized in that

The second air passage is downstream of the heater and has a throttle portion whose flow path is narrower than other portions.
A washer-dryer according to any one of claims 1 to 5, characterized in that

The introduction portion includes an introduction tube that passes through the inside of the nozzle and through which the second wind flows.

The first wind flows around the introduction tube in the nozzle,

The second wind flowing through the introduction tube is blown out into the wash dewatering tub together with the first wind.