JP4280000B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing / drying machine.
[0002]
[Prior art]
In an electric washing machine in which an outer tub is installed in the outer frame via an anti-vibration mechanism and a washing / dehydrating tub and a stirring blade are provided in the outer tub, air is circulated in the washing / dehydrating tub after the dehydration step. There has been proposed a washing and drying machine configured to dry the laundry in the washing and dewatering tub.
[0003]
This washer / dryer is provided with a circulation fan and a heating means (heater) in the upper part of the outer frame, cooled and dehumidified in the air passage leading to the circulation fan of the air sucked from the suction port formed in the lower part of the outer tub. After being heated, the air is blown from the outlet into the upper opening of the washing and dewatering tank.
[0004]
[Problems to be solved by the invention]
In such a conventional washing and drying machine, the outer tub vibrates (oscillates) and the relative positional relationship with the outer frame fluctuates in the washing, dehydrating and drying processes. It is configured to be connected to the mouth via a vibration absorbing member (rubber bellows hose), and a strange odor is generated from rubber exposed to warm air or yarn waste accumulated in the bellows.
[0005]
In addition, the circulation fan installed at the top of the frame increases the height of the washer / dryer, and if the water-cooled dehumidifying mechanism is used, the structure becomes complicated, so the washer / dryer itself becomes larger and the price is higher. With significant increase, packaging and transportation costs will increase.
[0006]
One object of the present invention is to reduce the increase in price and increase in packaging and transportation costs by suppressing the increase in size of the washing and drying machine and simplifying the cooling water drainage system in water cooling and dehumidification .
[0007]
Still another object of the present invention is to propose a washing and drying machine with good drying efficiency by enhancing the cooling and dehumidifying effect in the circulation air passage.
[0008]
Still another object of the present invention is to propose a washing and drying machine capable of reducing off-flavors generated by the heat of circulating air.
[0009]
[Means for Solving the Problems]
The present invention provides a circulation air path for sucking circulating air for drying from a suction port provided at a lower portion of the outer tub and blowing it into an upper opening of the washing and dewatering tub between the rear side of the outer tub and the rear frame plate. An upward air passage portion connected to the mouth and extending upward from the lower portion of the outer tub, an upper folding portion that is folded back at a position higher than the washing water level in the washing process at the upper portion of the upward air passage portion, and the upper folding portion A descending air passage portion extending downward to the lower side of the outer tub, a lower folded portion folded upward at a lower end portion of the descending air passage portion, a blowing air passage portion extending upward from the lower folding portion, and the blowing air passage And a blow-in opening provided facing the upper opening of the washing and dewatering tub connected to the upper end of the unit,
A circulation fan is arranged on the lower side of the outer tub and connected so as to intervene in the lower folded portion,
A cooling sprinkler for cooling and dehumidifying the air flowing through the circulation air passage is provided in the rising air passage.
A heater for heating the air flowing through the circulation air passage is disposed in the blowing port,
The cooling water sprayed in the cooling water spraying part is configured to drain through an outer tub and a drain electromagnetic valve for draining washing water stored in the outer tub, more specifically,
The circulating air is blown into the washing / dehydrating tub from the blowing port toward the inner wall surface of the washing / dehydrating tub in a direction opposite to the rotation direction of the washing / dehydrating tub. ,
The circulation air passage is provided in the outer tub, and the circulation fan installed in the circulation air passage is attached to the lower side of the outer tub,
The outer tub is cylindrical, and the ascending air passage portion is disposed so as to be located at the closest part of the rear frame plate on the rear side of the outer tub, and the cross-sectional shape of the air passage is a substantially rectangular shape having a wide width. And forming the descending air passage portion next to the updraft air passage portion, and arranging the blowing air passage portion next to the updraft air passage portion on the side opposite to the down air passage portion. The descending air passage portion and the blowing air passage portion are characterized in that the cross-sectional shape of the air passage is formed into a shape with a narrower width and a wider width than the updraft air passage portion ,
A lint filter is detachably attached to the upper folded portion of the circulation air passage.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a schematic diagram showing an embodiment of a washing / drying machine according to the present invention.
[0012]
The washer / dryer in this embodiment supports a bottomed cylindrical outer tub 2 suspended from a square cylindrical outer frame 1 by a vibration isolating mechanism (not shown). Is provided with a bottomed cylindrical washing and dewatering tub 3 having a large number of dewatering holes 3a formed on the side wall and a stirring blade 4, and the stirring blade 4 is repeatedly rotated by a rotary drive device 5 installed under the outer tub 2. Roll and reverse. Or dehydration holes 3a in order to perform drying of the blow laundry to prevent the circulating air to be described later efficiently, provided in the lower region of the side wall of the washing and dewatering tank 3, intermediate region and the upper region is omitted Less is better. The stirring blade 4 is provided with a vent hole 4a. The bottom of the outer tub 2 is connected to a drain pipe 7 through a drain solenoid valve 6.
[0013]
The upper opening 1a of the outer frame 1 is opened and closed by an outer lid 8 attached to the outer frame 1 by a hinge 8a, and the upper opening 2a of the outer tank 2 is opened and closed by an inner lid 9 attached to the outer tank 2 by a hinge 9a.
[0014]
In this washing and drying machine, the outer lid 8 and the inner lid 9 are opened, the laundry is put into the washing and dewatering tub 3, the inner lid 9 and the outer lid 8 are closed, and the water supply electromagnetic valve is placed in the outer tub 2. (The illustration is omitted) and the rotary drive device 5 is operated to rotate the agitating blade 4 forward and backward repeatedly to agitate and wash the laundry, open the drain electromagnetic valve 6 to drain, wash and remove It dehydrates by rotating the water tank 3 at high speed.
[0015]
A circulation air passage that circulates dry air in the outer tub 2 to generate circulated air is connected to the suction port 2b provided at the lower portion of the side wall of the outer tub 2 and the suction port 2b, and is located above the suction port 2b. towards increased air passage to stop the entry of washing water extends the (member) 10, the circulation which has been raised before SL on Noborikazero unit 10 is installed at a position higher than the water level in the outer tub 2 in laundry process An upper folded portion (member) 11 for folding the air, a descending air passage portion (member) 12 extending from the upper folded portion 11 toward the lower side of the outer tub 2, and a space below the outer tub 2 are arranged. A circulating fan 13 for sucking circulating air from the descending air passage portion 12, a blowing air passage portion (member) 14 extending from the outlet of the circulating fan 13 toward the upper opening of the outer tub 2, and the blowing air passage 14 Circulating air connected to the upper part of the outer tank Comprising a blowing opening blowing the washing and dewatering tank within 2 from the upper opening 2a (member) 15. The ascending air passage portion 10 in the circulation air passage functions to stop the washing water in the outer tub 2 from entering the circulation fan 13 in the washing process. Further, the circulation fan 13 and the connection portion of the air passage member to the circulation fan 13 constitute a lower folded portion in the circulation air passage.
[0016]
This circulation air passage is provided with a cooling water sprinkling portion 16 in the upper portion of the rising air passage portion 10, a lint filter 17 in the upper turn-up portion 11, and a heater (PTC heater) 18 in the blowing port portion 15. .
[0017]
Each of these circulation air path members is mounted on the side wall of the outer tub 2 and mounted on the rear side of the outer tub 2.
[0018]
And these circulation air path members open the electromagnetic drain valve 6 after washing, drain the washing water in the outer tub 2, rotate the washing and dewatering tub 3 at high speed and dehydrate, and then rotate at low speed (50 to 200 rpm). In this state, by operating the circulation fan 13, the air in the outer tub 2 and the washing and dewatering tub 3 is sucked from the suction port 2 b, and in the process of ascending the rising air passage portion 10, The water is cooled and dehumidified by the cooling water supplied into the ascending air passage portion 10, and the yarn waste is collected by the yarn waste filter 17 in the upper folded portion 11. The cooling water supplied into the ascending air passage unit 10 cools the inner wall surface and the circulating air while flowing down the inner wall surface along the inner wall surface in the ascending air passage unit 10 and flows into the outer tub 2. After that, the water is drained through the electromagnetic drain valve 6. Thereafter, the cooled and dehumidified air is sucked into the circulation fan 13 through the descending air passage portion 12, is sent from the circulation fan 13 through the blowing air passage portion 14 to the blowing port portion 15, and is heated by the heater 18 to be washed and dewatered tub 3. The laundry is dried by cooling and dehumidifying in the ascending air passage section 10 while circulating by blowing in the direction opposite to the rotation direction of the washing and dewatering tub 3 toward the inner wall surface inside.
[0019]
2 to 5 show a specific configuration of the above-described washing and drying machine, FIG. 2 is a longitudinal side view of the washing and drying machine, and FIG. 3 is a circulation air passage section by cutting out the rear frame plate of the outer frame. 4 is a rear view of the washing / drying machine, FIG. 4 is a top view of the washing / drying machine showing the outer tub and the circulation air passage part with the upper cover removed, and FIG. 5 is a bottom view of the washing / drying machine. Description overlapping with that in FIG. 1 is omitted.
[0020]
The rotation drive device 5 includes a reversible drive motor 5a, an electromagnetic operation clutch 5b, a speed reduction mechanism 5c, a center output shaft 5d, and an outer output shaft 5e. The rotation of the drive motor 5a is performed by setting the electromagnetic operation clutch 5b to a disengagement mode. The force is transmitted to the stirring blade 4 through the speed reduction mechanism 5c and the center output shaft 5d to rotate the stirring blade 4 forward and reverse, and the electromagnetic operation clutch 5b is set to the continuous mode, thereby outputting the rotational force of the drive motor 5a to the outside. This is configured to transmit to the outer tub 2 through the shaft 5e and rotate the outer tub 2 at high speed for dehydration.
[0021]
The ascending air passage portion (member) 10 in the circulation air passage is located along the outer tub 2 so as to be positioned at the rear rear portion of the cylindrical outer tub 2, that is, the portion closest to the rear frame plate 1b of the outer frame 1. And attach to the side wall of the outer tub 2. The rising air passage portion 10 is formed in a rectangular air passage cross-sectional shape with a narrowed depth and a wide lateral width so as to be suitable for placement in a narrow space between the outer tub 2 and the rear frame plate 1b. . In this way, the wide ascending air passage section 10 having a substantially rectangular air passage cross-sectional shape is suitable for cooling and dehumidification of the circulating air because the wall surface becomes wider and the circulating air cooling wall surface increases.
[0022]
The descending air passage portion (member) 12 is attached to the side wall of the outer tub 2 along the side surface of the ascending air passage portion 10 so as to be located next to the ascending air passage portion (member) 10. Since this position is away from the rear frame plate 1a due to the curvature of the outer tub 2, the cross-sectional shape of the air passage is formed in a substantially square shape with a wider depth and a smaller width, thereby suppressing the lateral width of the circulating air passage. To be configured.
[0023]
The blowout air passage portion (member) 14 is attached to the side wall of the outer tub 2 along the side surface of the updraft air passage portion 10 so as to be located next to the opposite side of the updraft air passage portion (member) 10. Since this position is away from the rear frame plate 1a due to the curvature of the outer tub 2, the cross-sectional shape of the air passage is formed in a substantially square shape with a wider depth and a smaller width, thereby suppressing the lateral width of the circulating air passage. To be configured.
[0024]
In this way, the circulating air passage members 10, 12, and 14 attached to the side wall along the rear side wall of the outer tub 2 run along the rear side wall at regular intervals inside the rear frame plate 1b. The front side wall is formed into a curved shape along the cylindrical outer wall surface of the outer tub 2.
[0025]
The upper folding member 11 that communicates the upper ends of the ascending air passage member 10 and the descending air passage member 12 is positioned at the rear portion of the upper surface of the outer tub 2, and the lint filter 17 is horizontally disposed from the upper opening 1 a of the outer frame 1. Store in a removable manner.
[0026]
The blowing port 15 extends to the rear of the upper surface of the outer tub 2, incorporates a heater 18, directs heated circulating air in a direction opposite to the rotation direction of the washing and dehydrating tub 3, and The upper dewatering hole 3a in the dewatering tank 3 is opened so as to blow toward the inside of the omitted (small) portion.
[0027]
The circulation fan 13 includes a centrifugal impeller 13a and a drive motor 13b that rotates the centrifugal impeller 13a, and is formed below the outer tub 2 in the outer frame 1 by being attached to the lower side of the bottom of the outer tub 2. It arrange | positions so that it may align with the said drive device 5 in the space to be performed. The descending air passage member 12 is opened so that the lower end portion is bent inward and faces the suction port 13c of the centrifugal impeller 13a. A drain discharge port 12 a is provided at the lower end of the descending air passage member 12. And the lower end of the blowing air path member 14 is connected to the discharge port 13d facing the outer periphery of the centrifugal impeller 13a.
[0028]
The washing / drying machine constructed as described above has the members 10, 11, 12, 13, 14, 15 constituting the circulation air passage for circulating the air in the outer tub 2 and the washing and dewatering tub 3 attached to the outer tub 2. Since it is mounted, there is no need to interpose a vibration absorbing member such as a bellows hose in the middle, and the generation of a strange odor due to the heat of the circulating air can be reduced.
[0029]
In addition, the circulating air is blown into the washing / dehydrating tub 3 from the blowing port 15 toward the vicinity of the inner wall surface of the upper region where the dewatering hole 3a in the washing / dehydrating tub 3 is omitted. Since the air is blown in the direction opposite to the rotation direction, it is possible to reduce the blow-through of the circulating air and increase the drying efficiency.
[0030]
Furthermore, since the bulky circulation fan 13 is installed in the space formed on the lower side of the outer tub 2, an increase in the height of the drying and washing machine can be suppressed, and the price of the washing and drying machine itself is increased. The increase in packaging and transportation costs can be reduced.
[0031]
Further, the ascending air passage portion 10, the descending air passage portion 12, and the blowing air passage portion 14 constituting the circulation air passage are rationally arranged in the space between the rear side of the outer tub 2 and the rear frame plate 1 b of the frame body 1. By doing so, the cooling dehumidification effect in the ascending air passage section 10 can be enhanced.
[0032]
Furthermore, in the water cooling system in which cooling water is supplied into the ascending air passage portion 10 for cooling, the cooling water can be drained through the outer tub 2 and the drain electromagnetic valve 6, so that the cooling water can be easily drained. Reduces heat dissipation to the room.
[0033]
Furthermore, the lint filter 17 is easily handled because it is detachably attached from the upper opening 1a of the outer frame 1 to the upper folded portion 11 provided at the upper portion of the outer tub 2.
[0034]
Further, by providing the upper turn-up portion 11 of the circulation air passage at a position higher than the washing water level in the washing process, the washing water can be prevented from flowing into the circulation fan 13.
[0035]
【The invention's effect】
The present invention suppresses the increase in the size of the washing and drying machine and simplifies the cooling water drainage system in the water cooling and dehumidification, thereby reducing the increase in price and the increase in packaging and transportation costs. By increasing the dehumidifying effect, it is possible to propose a washing and drying machine with good drying efficiency, and to reduce off-flavors generated by the heat of the circulating air.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of a washing / drying machine according to the present invention.
FIG. 2 is a longitudinal side view of the washing / drying machine according to the present invention.
3 is a rear view showing a circulation air passage portion by cutting out a rear frame plate of the outer frame of the washing / drying machine shown in FIG. 2; FIG.
FIG. 4 is a top view of the washing / drying machine showing an outer tub and a circulation air passage part by removing the upper cover of the washing / drying machine shown in FIG. 2;
5 is a bottom view of the washing / drying machine shown in FIG. 2. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Outer frame, 1a ... Upper opening, 2 ... Outer tank, 2a ... Upper opening, 2b ... Suction outlet, 3 ... Washing and dehydration tank, 3a ... Dehydration hole, 4 ... Stirring blade, 5 ... Rotation drive device, 6 DESCRIPTION OF SYMBOLS Drain solenoid valve, 10 ... Ascending air path part (member), 11 ... Upper folding | turning part (member), 12 ... Down air path part (member), 13 ... Circulation fan, 14 ... Outlet air path part (member), 15 DESCRIPTION OF SYMBOLS ... Outlet part (member), 16 ... Cooling water spray part, 17 ... Waste thread filter, 18 ... Heater.

Claims (4)

A circulation air passage that sucks in circulating air for drying from the suction port provided in the lower part of the outer tub and blows it into the upper opening of the washing and dewatering tub is connected to the suction port between the rear side of the outer tub and the rear frame plate. A rising air passage portion extending upward from the lower portion of the outer tub, an upper folding portion that folds up at a position higher than the washing water level in the washing process at the upper portion of the rising air passage portion, and from the upper folding portion to the bottom of the outer tub. A descending air passage portion extending downward to the side, a lower folded portion folded upward at the lower end portion of the descending air passage portion, a blowing air passage portion extending upward from the lower folding portion, and an upper end portion of the blowing air passage portion together consist face is that blowing inlet portion provided in the connected upper opening of the washing and dewatering tank, the
The outer tub is cylindrical, and the ascending air passage portion is disposed so as to be located at the closest part of the rear frame plate on the rear side of the outer tub, and the cross-sectional shape of the air passage is a substantially rectangular shape having a wide width. And forming the descending air passage portion next to the updraft air passage portion, and arranging the blowing air passage portion next to the updraft air passage portion on the side opposite to the down air passage portion. The descending air passage portion and the blowing air passage portion are formed in a shape in which a cross-sectional shape of the air passage is widened and narrowed with respect to the ascending air passage portion,
A circulation fan is arranged on the lower side of the outer tub and connected so as to intervene in the lower folded portion,
A cooling sprinkler for cooling and dehumidifying the air flowing through the circulation air passage is provided in the rising air passage.
A heater for heating the air flowing through the circulation air passage is disposed in the blowing port,
A washing / drying machine configured to drain the cooling water sprayed in the cooling water spraying section through an outer tank and a drain electromagnetic valve for draining the washing water stored in the outer tank.   In Claim 1, the blowing of circulating air from the blowing port into the washing / dehydrating tub is blown in the direction opposite to the rotation direction of the washing / dehydrating tub toward the vicinity of the inner wall surface of the washing / dehydrating tub. Washing and drying machine characterized by that.   The washing / drying machine according to claim 1, wherein the circulation air passage is provided in the outer tub, and a circulation fan installed in the circulation air passage is attached to a lower side of the outer tub. 2. The washing / drying machine according to claim 1, wherein a lint filter is detachably attached to an upper folded portion of the circulation air passage .

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