Washing and drying machine

Abstract

To provide a washing and drying machine which has good washability, and which includes a filter structure where the air flows uniformly.SOLUTION: A washing and drying machine includes: an outer tub; a drum; a blower; a heat pump unit; a suction duct 21; a secondary filter 7 provided between the outer tub 2 and the suction duct 21 for collecting lint; and a washing unit 100 provided above the secondary filter 7 for washing the secondary filter 7. The suction duct 21 includes bent flow straightening plates 160a, 160b on the downstream of the secondary filter 7. The flow straightening plates 160a, 160b are provided further on the side where the suction duct 21 extends than the center in the width direction of the secondary filter 7.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a washing and drying machine. [Background technology]

[0002] When drying clothes using a washer-dryer, which can perform washing and drying in succession, lint (lint) is generated as the drying process progresses. To collect this lint, a filter is installed inside the washer-dryer, but if lint accumulates on this filter, the drying efficiency decreases, so cleaning the filter is important. Also, if the lint does not adhere to the filter evenly, the resistance when the wind passes through the filter increases, so it is desirable to control the flow (air flow) so that the lint adheres to the filter evenly.

[0003] For example, a configuration for controlling the flow has been proposed in Patent Document 1. Patent Document 1 includes a water tank, a rotating drum provided inside the water tank, a dry air duct through which dry air supplied to the water tank and the rotating drum flows, a blower fan and an ion generator disposed in the dry air duct, an exhaust duct communicating with the dry air duct, an intake port formed on the suction side of the blower fan in the dry air duct, and a filter disposed upstream of the intake port in the dry air duct to remove dust, and the communicating portion between the exhaust duct and the dry air duct is formed between the intake port and the filter. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-146349 A Summary of the Invention [Problem to be solved by the invention]

[0005] The invention described in Patent Document 1 provides a rib in the exhaust duct to adjust the airflow direction, making it possible to disperse the exhaust flow in the left and right directions. However, the configuration described in Patent Document 1 makes no mention of cleaning the filter, nor does it mention making the flow rate uniform.

[0006] SUMMARY OF THE PRESENT INVETION The present invention has been made to solve the above-mentioned problems in the prior art, and has an object to provide a washing / drying machine having a filter structure that is easy to clean and creates a uniform airflow. [Means for solving the problem]

[0007] The present invention comprises an outer tub capable of storing liquid therein, a drum that is rotatably arranged within the outer tub and in which laundry is stored, a blower for supplying air to the drum and the outer tub, a heating means for heating the air generated by the blower, an air duct connecting the outer tub to the blower and the heating means, a filter that is provided between the outer tub and the air duct and collects lint, and a cleaning mechanism that is provided above the filter and cleans the filter, wherein the air duct has a straightening plate downstream of the filter, and the straightening plate is provided on the side to which the air duct extends rather than the widthwise center of the filter. Effect of the Invention

[0008] According to the present invention, a washing / drying machine having a filter structure that has good cleaning properties and creates a uniform air flow can be provided. [Brief description of the drawings]

[0009] [Figure 1] 1 is an external perspective view showing a washing / drying machine according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a perspective view showing the inside of the washer / dryer of the present embodiment. [Diagram 3] 1 is a schematic diagram showing the inside of a washing / drying machine according to an embodiment of the present invention; [Figure 4] 1 is an exploded perspective view of the intake duct and the peripheral structure of the drying filter according to the embodiment, as viewed from the front side of the housing. FIG. [Diagram 5] 1 is an exploded perspective view of the intake duct and the peripheral structure of the drying filter of the embodiment, as viewed from the rear side of the housing. FIG. [Figure 6] FIG. 2 is a plan view of the washer / dryer of the present embodiment as viewed from the rear side. [Figure 7] FIG. 7 is a perspective view taken along the line VII-VII in FIG. 6. [Figure 8] FIG. 13 is a schematic plan view of a comparative example in which no current plate is present. [Figure 9] 7 is a schematic plan view of the embodiment taken along line VII-VII of FIG. 6 as viewed from above. [Figure 10] FIG. 11 is a schematic plan view of a suction duct and a peripheral structure of a drying filter when no baffle plate is present as a comparative example, as viewed from the front side of the housing. [Figure 11] 2 is a schematic plan view of the intake duct and the peripheral structure of the drying filter of the embodiment, as viewed from the front side of the housing. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following embodiments, and various modifications and application examples within the technical concept of the present invention are also included in the scope of the present invention. Hereinafter, the embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view showing a washing / drying machine according to the present embodiment. As shown in Fig. 1, the washer / dryer S is a drum-type washer / dryer, and the frame is formed by combining side plates 1a and reinforcing members 1b (see Fig. 2) made mainly of steel plate provided on the left, right and rear sides on the upper part of a synthetic resin base 1h, and further mounting a front cover 1c, a lower front cover 1f and an upper cover 1e made of resin molded products on top of the frame to form the housing 1. The front cover 1c is also provided with a door 9 that is opened and closed when loading and unloading laundry.

[0011] Fig. 2 is a perspective view showing the inside of the washer / dryer according to this embodiment, with the front cover 1c, the water supply unit 70, the detergent case, etc. removed. As shown in Fig. 2, an outer tub 2 is provided in the approximate center inside the housing 1. The outer tub 2 is capable of storing wash water (liquid) therein, is formed in a cylindrical shape with a bottom, and is supported by a plurality of dampers 5. The outer tub 2 is configured by attaching a tub cover 2b to a front opening 2a1 of the outer tub main body 2a. The rear side of the tub cover 2b is connected to the front opening 2a1 of the outer tub main body 2a, and a circular opening 2b1 through which laundry is put in and taken out is formed at the front side.

[0012] A rotatably supported drum 3 (see FIG. 3) is provided inside the outer tub 2. The drum 3 (inner tub) is formed in a cylindrical shape with a bottom, and is disposed so that the opening is located at the front side. The drum 3 is directly connected to a motor M (see FIG. 6) for driving the drum via a main shaft (not shown) connected to a metal flange (not shown) for the drum. The rotation shaft of the drum 3 is inclined so that the front side is higher than the rear side. The rotation shaft of the drum 3 may be configured to be approximately horizontal.

[0013] An elastic rubber bellows 10 is attached to the tub cover 2b. When the door 9 is closed, the door 9 comes into close contact with the bellows 10, which serves to maintain watertightness between the inside of the outer tub 2 and the door 9. This prevents water leakage during washing, rinsing and spin-drying.

[0014] FIG. 3 is a schematic diagram showing the inside of the washer / dryer of the present embodiment. As shown in Fig. 3, an air blower duct 20 that guides airflow to the laundry in the drum 3 is provided in the housing 1. A blower 30 and a heat pump unit 40 are provided in the air blower duct 20. The blower 30 is located downstream of the heat pump unit 40. The air blower duct 20 also includes an intake duct 21 (air passage) that connects the rear of the outer tub 2 and the heat pump unit 40, and an exhaust duct 22 that connects the outer tub 2 and the blower 30.

[0015] A plurality of lifters 3a for lifting up the laundry are provided on the inner wall of the cylindrical portion, which is the side wall of the drum 3. The cylindrical portion of the drum 3 also has a number of through holes for centrifugal spin-drying and ventilation. A fluid balancer (not shown) is provided on the outer periphery of the opening of the drum 3 to reduce vibrations caused by imbalance of the laundry during spin-drying.

[0016] The suction duct 21 has an air passage that connects the outer tub 2 and the heat pump unit 40. The suction duct 21 is connected to the outer tub 2 with screws or the like, and is connected to the heat pump unit 40 with a rubber bellows 26. The discharge duct 22 has an air passage that connects the blower 30 and the drying discharge port 25. In addition, a primary filter 6 and a secondary filter 7 (filters) for drying are provided between the outer tub 2 and the suction duct 21. Both the primary filter 6 and the secondary filter 7 are mesh-like filters, and the mesh of the secondary filter 7 is formed to be finer than the mesh of the primary filter 6.

[0017] A concave in-tank duct 2e extending from the top to the bottom of the outer tub 2 is formed on the inner back surface of the outer tub 2, and a primary filter 6 is attached to the front side of the in-tank duct 2e. A communication port 2f communicating with the suction duct 21 is formed on the upper part of the back surface of the outer tub 2.

[0018] During drying operation, the heat pump unit 40 dehumidifies and heats the high-temperature, high-humidity air that has passed through the laundry and been discharged from the outer tub 2 to make it high-temperature, low-humidity, and the dehumidified and heated warm air (drying air) is passed through the discharge duct 22 by the blower 30 and blown onto the laundry in the drum 3 from the drying discharge port 25 provided at the top of the outer tub 2. The warm air blown onto the laundry becomes high-temperature, high-humidity air, passes through the primary filter 6 and then the secondary filter 7 to collect lint, and then returns to the heat pump unit 40 via the suction duct 21.

[0019] The water supply unit 70 is equipped with a solenoid valve that is opened when supplying water to the powder detergent input chamber and liquid detergent input chamber of the detergent case, a solenoid valve that is opened when supplying water to the fabric softener input chamber, a solenoid valve that is opened when supplying water directly to the water inlet (not shown) of the outer tub 2, and a solenoid valve that is opened when supplying washing water to clean the secondary filter.

[0020] A recess 2d is provided in the inner bottom directly below the outer tub 2. The recess 2d is generally concave and extends in the axial direction of the drum 3. A drain 2d2 is provided in the bottom surface 2d1 of the recess 2d. A circulation pump 11 is provided below the outer tub 2. The circulation pump 11 has the function of sucking the washing water in the outer tub 2 from the drain 2d2 through a hose 11a, pumping it up to the top of the outer tub 2 through a hose 11b, and spraying it on the laundry in the drum 3. The washing water flows from the drain 2d2 of the recess 2d of the outer tub 2 through a lint filter 13 (see FIG. 2) into the suction port side of the circulation pump 11, is pressurized by the circulation pump 11, and is sprayed from a spray nozzle (not shown) toward the inside of the drum 3. Further, a drain outlet 2d2 of the recess 2d is connected to a drain hose 12a via a lint filter 13 and a drain valve 12, so that the water in the recess 2d can be discharged to the outside of the machine.

[0021] The washer / dryer S also includes a water supply unit 70 (water supply means) that supplies water into the outer tub 2, a water level sensor (not shown) that detects the water level in the outer tub 2, a blower 30, and a control device 90 (controller). The control device 90 controls the water supply unit 70, the blower 30, the circulation pump 11, and the drain valve 12. The control device 90 also obtains information related to the water level from the water level sensor.

[0022] FIG. 4 is an exploded perspective view of the suction duct and the drying filter according to this embodiment, as viewed from the front side of the housing, and FIG. 5 is an exploded perspective view of the suction duct and the drying filter according to this embodiment, as viewed from the rear side of the housing. As shown in Figs. 4 and 5, the washer / dryer S includes a cleaning unit 100 (cleaning mechanism) for cleaning the secondary filter 7. The cleaning unit 100 includes a filter nozzle 200 and a filter cover 300. The cleaning unit 100 is provided in the suction duct 21. The suction duct 21 is connected to the communication port 2f (see Fig. 3) of the outer tub 2. The suction duct 21 has an outer tub side opening 101 (see Fig. 4) that opens in a rectangular shape toward the outer tub 2. The suction duct 21 has an upper opening 102 that opens in a rectangular shape upward above the outer tub side opening 101. The secondary filter 7 is inserted from the upper opening 102. The filter nozzle 200 is inserted from above the secondary filter 7. The filter cover 300 is attached from above the filter nozzle 200.

[0023] A wash water receiving portion 105 that receives wash water used to wash the secondary filter 7 is formed at the bottom of the suction duct 21. Also, at the bottom of the suction duct 21, an abutment portion 106 with which the frame member 151 of the secondary filter 7 abuts is formed on the near side (front side) of the wash water receiving portion 105. This abutment portion 106 is formed at a position lower than the wash water receiving portion 105.

[0024] Furthermore, in suction duct 21, a waterproof rib 103 is formed downstream of cleansing water receiving section 105 to prevent cleansing water from flowing from cleansing water receiving section 105 downstream of suction duct 21. This waterproof rib 103 is formed in a plate shape, and is formed to protrude from bottom surface 21a of suction duct 21. Furthermore, the height of waterproof rib 103 is formed so as to be higher than the surface of cleansing water receiving section 105.

[0025] The secondary filter 7 is configured to include a mesh-like filter surface 150 and a synthetic resin frame member 151 provided so as to surround the periphery of the filter surface 150. The secondary filter 7 has a horizontally elongated shape that is long in the left-right direction, and has a partition 152 that divides the frame member 151 at the center in the left-right direction.

[0026] The filter nozzle 200 is formed of a synthetic resin member, and has a cleaning nozzle 202 (see FIG. 5) that sprays cleaning water to clean the secondary filter 7. A plurality of cleaning nozzles 202 are formed side by side in the left-right direction. The lower end (tip) of the cleaning nozzle 202 is located above the secondary filter 7.

[0027] The filter nozzle 200 also has bent straightening plates 160a and 160b. The straightening plates 160a and 160b are provided on the side where the suction duct 21 extends (the left side in FIG. 4 and the right side in FIG. 5) rather than the center in the width direction (left-right direction) of the secondary filter 7. The filter nozzle 200 also has an opening 201 that is long in the left-right direction formed above the cleaning nozzle 202.

[0028] The filter nozzle 200 also has a lower frame portion 163 provided at the bottom, and the lower portions of the straightening plates 160a and 160b are connected to the lower frame portion 163. The upper portions of the straightening plates 160a and 160b are connected to an upper member 164 in which a plurality of cleaning nozzles 202 are formed.

[0029] The filter cover 300 has a cleaning water supply port 301 through which cleaning water is supplied from the water supply unit 70 (see FIG. 3). The filter cover 300 is attached so as to close the opening of the filter nozzle 200 and to seal the upper opening 102 of the suction duct 21.

[0030] Water supplied to the cleaning water supply port 301 flows from an opening 201 provided at the top of the filter nozzle 200 to a plurality of cleaning nozzles 202 arranged side by side in the width direction of the secondary filter 7, and is sprayed onto the filter surface 150 of the secondary filter 7 located below the cleaning nozzles 202. This makes it possible to wash away lint adhering to the filter surface 150.

[0031] Fig. 6 is a plan view of the washer / dryer according to this embodiment as seen from the rear. Fig. 7 is a perspective view of the cross section taken along line VII-VII in Fig. 6. The flow of wash water will be described with reference to Figs. 6 and 7. Fig. 7 does not show the primary filter 6.

[0032] As shown in FIG. 6, the cleaning water flows from the water supply unit 70 to the cleaning water supply port 301 and is sprayed onto the filter surface 150 of the secondary filter 7 (see FIGS. 4 and 5), and then flows into the cleaning water receiving section 105.

[0033] The waterproof rib 103 is configured so that its tip (upper end) is higher than the lower end 150a (see FIG. 4) of the secondary filter 7 (filter surface 150). This makes it possible to suppress the inflow of cleaning water into the heat pump unit 40 even if the water level in the cleaning water receiving portion 105 rises.

[0034] Furthermore, the wash water receiving section 105 is formed so that the upstream side (the left side in FIG. 6) is lower than the downstream side (the right side in FIG. 6). This makes it easier for the wash water that has accumulated in the wash water receiving section 105 to flow upstream of the wash water receiving section 105, and makes it possible to suppress the inflow of the wash water into the heat pump unit 40.

[0035] As shown in Fig. 7, when the secondary filter 7 and filter nozzle 200 are attached to the suction duct 21, the surface of the cleansing water receiving portion 105, the bottom side surface 151a of the frame member 151 of the secondary filter 7, and the top surface 163a of the lower frame portion 163 of the filter nozzle 200 are at approximately the same height. Note that the cleansing water receiving portion 105 is inclined so as to become lower from the downstream side (the left side in the figure) toward the upstream side (the right side in the figure) (see Fig. 6), so that part of the cleansing water receiving portion 105 is lower than the bottom side surface 151a and the top surface 163a.

[0036] The current rectifying plates 160a and 160b are disposed on the rear side of the filter surface 150. The current rectifying plate 160a is curved toward the waterproof rib 103. The current rectifying plate 160b is formed on the upstream side of the current rectifying plate 160a, and is curved toward the waterproof rib 103.

[0037] The cleaning water that has flowed into the cleaning water receiving portion 105 passes through the filter surface 150 from the rear side to the front side, and flows inside the in-tank duct 2e (see FIG. 3) together with the lint that has been cleaned and peeled off from the filter surface 150. The cleaning water that has flowed out from the in-tank duct 2e is discharged from an opening (not shown) formed in the lower part of the in-tank duct 2e, and flows along the wall surface of the outer tub 2 to the drain outlet 2d2 (see FIG. 3) formed in the recessed portion 2d (see FIG. 3). At this time, in order to prevent cleaning water from flowing from the cleaning water receiving portion 105 through the suction duct 21 to the heat pump unit 40, a waterproof rib 103 is provided on the downstream side of the cleaning water receiving portion 105 of the suction duct 21.

[0038] Here, the effect that the air straightening plates 160a, 160b have on the flow of air will be described with reference to Fig. 8 and Fig. 9. Fig. 8 is a schematic plan view of a comparative example in which no air straightening plate is present, and Fig. 9 is a schematic plan view of the VII-VII cross section of Fig. 6 as viewed from above. 8, in the comparative example where the baffles 160a, 160b are not present, the air flow passing from the outer tank 2 through the primary filter 6 and the secondary filter 7 and flowing into the intake duct 21 is biased toward the direction in which the intake duct 21 extends (to the left in FIG. 8). Therefore, the air flow passing through the secondary filter 7 is biased toward a portion (the intake duct 21 side from the left-right center (widthwise center) 500 of the secondary filter 7), making the speed distribution non-uniform and increasing the ventilation resistance of the filter.

[0039] Therefore, in the present embodiment, as shown in FIG. 9, the straightening plates 160a and 160b are installed on the side where the suction duct 21 extends rather than at the center 500 in the width direction of the secondary filter 7 (the center in the left-right direction in FIG. 8). The straightening plate 160a extends from the position where the filter-side end 161a (the end on the filter side) of the straightening plate 160a contacts the filter surface 150 and curves toward the side where the suction duct 21 extends. The straightening plate 160b is formed closer to the center 500 in the width direction than the straightening plate 160a, extends from the position where the filter-side end 161b (the end on the filter side) of the straightening plate 160b contacts the filter surface 150, and curves toward the side where the suction duct 21 extends. Note that the straightening plates 160a and 160b are merely examples and are not limited to the shapes shown in FIG. 9.

[0040] Thereby, the wind passage area on the side where a large amount of wind flows when the straightening plates 160a and 160b do not exist can be adjusted (narrowed), wind can also flow to the side opposite to the side where the suction duct 21 extends rather than the center 500 in the width direction of the secondary filter 7, and wind can flow throughout the width direction of the secondary filter 7, making it possible to equalize the wind flow with respect to the secondary filter 7.

[0041] Further, in the present embodiment, the distance between the downstream rear end 162a of the straightening plate 160a and the filter-side wall surface 107 which is the wall surface on the secondary filter 7 side of the suction duct 21 is defined as L1. Also, the shortest distance between the straightening plate 160a and the straightening plate 160b is defined as L2. Further, the shortest distance between the downstream rear end 162b of the straightening plate 160b and the rear-side wall surface 104 (the wall surface facing the filter-side wall surface) which is the wall surface on the rear side of the suction duct 21 is defined as L3. In this case, the straightening plates 160a and 160b are provided such that L1 < L2 < L3. Thereby, the wind passage area on the side where a large amount of wind flows when the straightening plates 160a and 160b do not exist can be reduced, and the wind flow can be effectively equalized with respect to the secondary filter 7.

[0042] Further, the downstream rear end 162a of the straightening plate 160a is provided so as to be located downstream (left side in FIG. 9) of the downstream end 150s in the width direction of the secondary filter 7 (filter surface 150). This makes it possible to adjust (reduce) the flow in the part of the secondary filter 7 where the air volume is greatest, and makes the air flow around the secondary filter 7 more uniform.

[0043] Moreover, the height H1 (see FIG. 5, the depth direction in FIG. 9) of the straightening plates 160a and 160b (the height of the straightening plates) is set to be substantially the same as the height H2 (see FIG. 5) of the secondary filter 7 (the height of the filter). This makes it possible to make the flow uniform over the entire height direction.

[0044] Next, the effect that the straightening plates 160a, 160b have on the flow of cleaning water will be described with reference to Fig. 10 and Fig. 11. Fig. 10 is a schematic plan view of the suction duct and the surrounding structure of the drying filter when no straightening plate is present as a comparative example, as viewed from the front side of the housing, and Fig. 11 is a schematic plan view of the suction duct and the surrounding structure of the drying filter of this embodiment, as viewed from the front side of the housing. Figs. 10 and 11 are schematic views of the outer tub 2, the secondary filter 7, the suction duct 21, the filter cover 300, and the filter nozzle 200 as viewed from the front.

[0045] In the comparative example shown in FIG. 10, the cleaning water flowing in from the cleaning water supply port 301 is sprayed onto the filter surface 150 through the cleaning nozzle 202 and accumulates in the cleaning water receiving portion 105. The cleaning water accumulated in the cleaning water receiving portion 105 passes through the filter surface 150 and flows toward the outer tub 2 (toward the in-tub duct 2e). However, at this time, the upstream side (right side in FIG. 10) of the cleaning water receiving portion 105 is lower than the downstream side (left side in FIG. 10), so that the water level 170 of the cleaning water accumulated in the cleaning water receiving portion 105 may not reach the entire width direction of the secondary filter 7 depending on the amount of cleaning water supplied. In this state, when the cleaning water flows from the cleaning water receiving portion 105 through the filter surface 150 toward the outer tub 2, lint that has peeled off due to the cleaning water will remain at a point D where the water level 170 has not reached the filter surface 150.

[0046] Therefore, in this embodiment, as shown in Fig. 11, the filter side ends 161a, 161b (see Fig. 9) of the straightening plates 160a, 160b are provided to abut against the filter surface 150. As a result, the cleaning water receiving portion 105 is divided into a section 105a between the downstream end of the filter surface 150 (left end in Fig. 10) and the position where the filter side end 161a of the straightening plate 160a abuts, a section 105b between the position where the filter side end 161a of the straightening plate 160a abuts and the position where the filter side end 161b of the straightening plate 160b abuts, and a section 105c between the position where the filter side end 161b of the straightening plate 160b abuts and the upstream end of the filter surface 150 (right end in Fig. 10). Therefore, cleaning water that has accumulated in the section 105a of the cleaning water receiving portion 105 is likely to remain in the section 105a. Cleaning water that accumulates in section 105b of cleaning water receiving section 105 tends to remain in section 105b. Cleaning water that accumulates in section 105c of cleaning water receiving section 105 tends to remain in section 105c. As a result, even with a smaller amount of water than when straightening plates 160a, 160b are not present (see FIG. 10), cleaning water level 170 is more likely to reach across the entire width of secondary filter 7, and peeled-off lint can flow toward outer tub 2 without remaining there.

[0047] As described above, the washer / dryer S of this embodiment includes the outer tub 2 capable of storing washing water (liquid) therein, the drum 3 rotatably arranged in the outer tub 2 and accommodating laundry, the blower 30 for supplying air to the drum 3 and the outer tub 2, the heat pump unit 40 (heating means) for heating the air generated by the blower 30, the intake duct 21 (air passage) connecting the outer tub 2 with the blower 30 and the heat pump unit 40, the secondary filter 7 (filter) provided between the outer tub 2 and the intake duct 21 for collecting lint, and the cleaning unit 100 (cleaning mechanism) provided above the secondary filter 7 for cleaning the secondary filter 7. The intake duct 21 has straightening plates 160a and 160b bent downstream of the secondary filter 7. The straightening plates 160a and 160b are provided on the side to which the intake duct 21 extends from the widthwise center 500 of the secondary filter 7. This makes it possible to make the flow of air passing through the secondary filter 7 uniform.

[0048] In this embodiment, the distance L3 between the straightening vane 160b and the rear wall surface 104 facing the filter side wall surface 107 of the suction duct 21 is greater than the distance L1 between the straightening vane 160a and the filter side wall surface 107 of the suction duct 21 (see FIG. 9). This makes it possible to reduce the air passage area on the side where more air flows when the straightening vanes 160a and 160b are not present, and effectively uniform the flow of air around the secondary filter 7.

[0049] In this embodiment, the downstream rear end 162a of the straightening plate 160a is located downstream (left side in FIG. 9) of the downstream end 151s in the width direction of the secondary filter 7 (see FIG. 9). This makes it possible to adjust (reduce) the flow in the part of the secondary filter 7 with the greatest air volume, and makes the flow of air around the secondary filter 7 more uniform.

[0050] In this embodiment, the height H1 (depth direction in FIG. 9) of the straightening plates 160a, 160b is substantially the same as the height H2 of the secondary filter 7 (see FIG. 5). This makes it possible to make the flow uniform over the entire height direction.

[0051] In this embodiment, filter side ends 161a, 161b of the straightening plates 160a, 160b are provided so as to abut against the filter surface 150 (see Figs. 9 and 11). As a result, the cleaning water receiving portion 105 is divided into sections 105a, 105b, 105c, so that the cleaning water level 170 easily reaches the entire width of the secondary filter 7 even with a smaller amount of water than when the straightening plates 160a, 160b are not present, and the peeled-off lint can flow toward the outer tub 2 without remaining there.

[0052] Furthermore, in this embodiment, suction duct 21 is formed with a cleaning water receiving section 105 that receives cleaning water used to clean secondary filter 7, and cleaning water receiving section 105 is formed so that the upstream side is lower than the downstream side (see FIG. 6). This makes it easier for cleaning water that has accumulated in cleaning water receiving section 105 to flow upstream of cleaning water receiving section 105, making it possible to suppress the inflow of cleaning water into heat pump unit 40.

[0053] In addition, in this embodiment, the suction duct 21 is formed with a waterproof rib 103 downstream of the cleaning water receiving portion 105, which prevents cleaning water from flowing from the cleaning water receiving portion 105 downstream of the suction duct 21. This makes it possible to prevent cleaning water from flowing into the heat pump unit 40.

[0054] The present invention is not limited to the above-described embodiment, and includes various modified examples. For example, the above-described embodiment has been described with the rectifying plates 160a and 160b as an example, but it may have one rectifying plate or three or more rectifying plates. In addition, the above-described embodiment has been described with the rectifying plates 160a and 160b as an example, but it may have non-curved rectifying plates. [Explanation of symbols]

[0055] 1 Case 2 Outer tank 3 Drums 6 Primary Filter 7 Secondary Filter (Filter) 21 Intake duct (air passage) 22 Discharge duct 30 Blower 40 Heat pump unit (heating means) 70 Water Supply Unit 103 Waterproof Rib 104 Rear wall surface (wall surface facing the filter side wall surface) 105 Cleaning water receiving section 107 Filter side wall 150 Filter Surface 151 Frame members 151s downstream end 160a,160b rectifier plate 161a, 161b Filter side end (filter side end) 162a Downstream rear end 170 water level 100 Cleaning unit (cleaning mechanism) 200 Filter Nozzle 300 Filter Cover 500 Width center H1 Height (height of the air deflector) H2 Height (filter height) L1 Distance (distance between the straightening plate and the filter side wall) L3 Distance (distance between the airflow plate and the rear wall) S washer dryer

Claims

1. An outer tank capable of storing liquid therein; a drum that is rotatably disposed within the outer tub and that accommodates laundry; a blower for supplying air to the drum and the outer tub; A heating means for heating the air generated by the blower; an air passage connecting the outer tub with the blower and the heating means; a filter provided between the outer tub and the air passage for collecting lint; a cleaning mechanism provided on an upper portion of the filter for cleaning the filter; The air passage has a straightening plate downstream of the filter, The washing / drying machine according to claim 1, wherein the air straightening plate is provided on a side of the filter on which the air passage extends rather than a center of the filter in a width direction.

2. The washing and drying machine according to claim 1, a distance between the straightening plate and a wall surface of the air passage facing the filter side wall surface is greater than a distance between the straightening plate and a wall surface of the air passage facing the filter side wall surface.

3. The washing and drying machine according to claim 1, The washing / drying machine according to claim 1, wherein a downstream rear end of the straightening plate is located downstream of a downstream end of the filter in a width direction.

4. The washing and drying machine according to claim 1, The washing / drying machine according to claim 1, wherein a height H1 of the baffle plate is substantially equal to a height H2 of the filter.

5. The washing and drying machine according to claim 1, The washing / drying machine according to claim 1, wherein an end portion of the baffle plate on the filter side is provided so as to abut against the filter.

6. The washing and drying machine according to claim 1, a cleaning water receiving portion for receiving cleaning water used to clean the filter is formed in the air passage; The washing / drying machine according to claim 1, wherein the washing water receiving section is formed so that the upstream side is lower than the downstream side.

7. The washing and drying machine according to claim 6, The washer-dryer is characterized in that a waterproof rib is formed in the air passage downstream of the wash water receiving section, the waterproof rib preventing wash water from flowing from the wash water receiving section downstream of the air passage.

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