JP4016699B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing / drying machine equipped with washing, rinsing and dewatering washing steps and a drying step.
[0002]
[Prior art]
Conventionally, a structure as shown in FIG. 11 has been proposed for this type of washing and drying machine. Hereinafter, the configuration will be described.
[0003]
As shown in the figure, the outer frame 1 is provided with an outer tub 3 that is elastically suspended by a plurality of suspensions 2 inside, and the suspension 2 absorbs vibration during dehydration. Inside the outer tub 3, an inner tub 4 having a center axis of rotation in the vertical direction and accommodating a laundry and an object to be dried is disposed so as to be rotatable around the dewatering shaft 5. A rotary blade 6 for agitating clothes (laundry and dry objects) is disposed around a washing shaft 7 so as to be rotatable.
[0004]
A large number of small holes (not shown) are provided in the inner peripheral wall of the inner tank 4, and a fluid balancer 8 is provided above. In the drying process, the rotor blade 6 is inclined by the centrifugal force generated by the rotation of the rotor blade 6 by forming the stirring protrusion 10 on the upper surface of the substantially dish-like base having the inclined surface 9 on the outer periphery. It is easy to rise upward along the surface 9.
[0005]
The motor 11 is attached to the bottom of the outer tub 3, and is connected to the inner tub 4 or the rotary blade via the clutch 12, the washing shaft 7, and the dewatering shaft 5 for switching the rotational force to the washing shaft 7 and the dewatering shaft 5 during washing or dewatering. 6 is connected.
[0006]
The heat exchanger 13 dehumidifies the circulating hot air, and one end of the heat exchanger 13 is connected to the lower portion of the outer tub 3 via a retractable lower bellows-like hose 14 and is included in the hot air circulating at the other end. A lint filter 15 that collects lint is connected to one end of a circulation fan 16. The other end of the circulation fan 16 is connected to a hot air supply path 18 having a heater 17 as a heating means, and is connected to the inner tank 4 through an upper bellows-like hose 19 to constitute a circulating hot air circulation path 20. ing.
[0007]
The outer tub 3 is provided with an outer tub cover 21 that airtightly covers the upper surface of the outer tub 3, and a hot air supply port 22 that supplies hot air from the upper bellows-like hose 19 that is extendable to the outer tub cover 21. Is open. In addition, an inner lid 23 is provided on the outer tub cover 21 so as to be freely opened and closed so that clothes can be taken in and out.
[0008]
The outer frame cover 24 covers the upper part of the outer frame 1, has an outer lid 25 that can be opened and closed, is provided with operation display means 26, and is provided with a water supply valve 27 that supplies water to the inner tank 4. Further, a drain valve 28 for draining the water in the outer tub 3 is provided at the bottom of the outer tub 3. The cooling blower 29 is attached to the side surface of the outer frame 1 and is configured to be able to blow so as to cool the outer tub 3 inside the outer frame 1, the heat exchanger 13, and the like.
[0009]
The control device 30 includes a microcomputer, and controls the operation of the motor 11, the clutch 12, the circulation fan 16, the heater 17, the water supply valve 27, the drain valve 28, the cooling fan 29, and the like, washing, rinsing, dehydrating, A series of drying steps are sequentially controlled.
[0010]
The thermistor 31 detects the temperature of the outer wall of the outer tub 3, and the thermistor 32 detects the circulating air temperature at the outlet of the heat exchanger 13. The control device 30 is configured to input detection outputs from the thermistors 31 and 32 and determine the end of drying.
[0011]
The operation in the above configuration will be described. In the washing process, when the outer lid 25 and the inner lid 23 are opened, clothes (laundry) are put into the inner tub 4 and the operation is started, the water supply valve 27 is opened to supply water to a predetermined water level, and then the motor 11 is driven. To do. At this time, the power of the motor 11 is transmitted to the rotary blade 6 through the washing shaft 7 by the clutch 12 of the transmission mechanism unit, and the rotary blade 6 rotates, whereby the clothes are stirred by the stirring protrusion 10 of the rotary blade 6. However, it is performed by the mechanical force acting by the contact between the laundry or the inner wall of the inner tub 4 and the rotary blade 6 and the hydrodynamic force.
[0012]
In the dehydration process, after the washing is completed, the drain valve 28 is opened to drain the water in the inner tub 4, the clutch 12 of the transmission mechanism is switched to the dehydration side, and the power of the motor 11 is supplied via the dehydration shaft 5. This is done by separating the moisture from the clothing by transmitting it to the tub 4 and rotating it, and applying centrifugal force to the clothing. When the dehydration process is completed, the process proceeds to the drying process.
[0013]
In the drying process, the drain valve 28 is closed and the clutch 12 is switched to the washing side. Then, the motor 11 is driven and transmitted to the rotor blade 6, the rotor blade 6 is rotated forward and reverse, the clothes are caught by the stirring protrusion 10 and stirred, and the circulating fan 16 and the heater 17 are energized and heated. The wind is sent to the warm air supply port 22. The warm air blown into the inner tub 4 from the warm air supply port 22 evaporates moisture from the clothing, then exits from the inner tub 4 to the inside of the outer tub 3, passes through the lower bellows-like hose 14, The heat exchanger 13 is reached.
[0014]
When the warm air containing moisture from the clothing deprived of moisture passes through the inner wall of the outer tub 3 and the heat exchanger 13, the inflow of external air by the cooling blower 27 installed on the side surface of the outer frame 1, The outer walls of the outer tub 3 and the heat exchanger 13 are cooled, moisture condensation occurs inside, and the moist hot air is dehumidified and returned to the circulation fan 16. By circulating the warm air in the warm air circulation path 20, the clothes in the inner tub 4 can be dried.
[0015]
[Problems to be solved by the invention]
However, in such a conventional configuration, one end of the heat exchanger 13 is connected to the lower portion of the outer tub 3 via the retractable lower bellows-like hose 14 and the other end is connected to one end of the circulation fan 16. Therefore, the hot air circulation path 20 is inevitably large, and the main body is large and the weight is also increased.
[0016]
In addition, the air cooling method for indirectly cooling the hot air circulating in the heat exchanger 13 by the outside air requires a wide heat exchange area, and the cooling blower 29 needs to be provided on the rear surface of the outer frame. The fuselage itself was large and the weight increased.
[0017]
Furthermore, since the hot air circulation path 20 is composed of a large number of parts, the pressure loss increases, gaps are easily generated at the joints of the parts, and air leakage is likely to occur. The circulation fan 16 had to be rotated at a high speed, which was inevitably large, increased in weight, and increased in noise.
[0018]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and allows drying with a simple structure, increases the airframe by forming a blower path with less pressure loss and less air leakage without increasing the body body size and weight. The purpose is to realize a washing / drying machine that improves the drying performance by increasing the noise and suppresses the accompanying noise.
[0019]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention rotates an inner tub having a rotation center axis in a vertical direction in an outer tub that is covered with an outer frame cover and elastically suspended in the outer frame. Arranged freely, outside air is sucked in by an intake duct, and the sucked outside air is blown by a blower fan and a casing and heated by a heater, and has at least an intake duct, a blower fan, a casing, and a heater. Inside the cover, a hot air blowing means is provided at the rear part thereof , the intake duct protrudes rearward from the outer frame, the protruding part of the intake duct opens the lower surface, and forms a sound insulating wall on the rear surface of the intake duct, The outside air is sucked from the open lower surface .
[0020]
As a result, it is possible to dry with a simple structure, the airframe can be made larger and the air flow path with less pressure loss and air leakage can be formed without increasing the weight and drying performance with increased air volume. In addition, it is possible to realize a washing / drying machine with reduced noise.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, the outer frame and an outer frame cover covering an upper portion of the outer frame, an outer tub which is suspended elastically in the outer frame, the vertical central axis of rotation An inner tub rotatably disposed in the outer tub, an intake duct that sucks in outside air, a blower fan and a casing that blows in the sucked outside air, a heater that heats the outside air, and at least the intake duct, the blowing fan, the casing and a hot air blowing means provided on the rear part in the outer frame in the cover has the heater, the intake duct is made to protrude rearward from the outer frame, the intake duct The projecting part opens the lower surface, forms a sound insulation wall on the rear surface of the intake duct, and sucks outside air from the opened lower surface , and can be dried with a simple structure. Enlarge the body And it is not necessary to increase the weight. In addition, since the hot air blowing means is configured as described above, it becomes easy to switch the model of the washing and drying machine, and the basic design is the same, but the model equipped with the hot air blowing means is the washing dryer and the hot air blowing means. Models that are not equipped with can be easily switched, such as a washing machine. In addition, the air flow can be increased by forming a blowing path with less pressure loss and air leakage, and the drying performance can be improved. A washing and drying machine can be realized.
[0022]
According to a second aspect of the present invention, in the first aspect of the present invention, the side wall of the intake duct is formed in a curved shape along the flow of air sucked by the blower fan , thereby suppressing turbulence. In addition to increasing the air volume, the drying performance can be improved and the accompanying noise can be suppressed.
[0023]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the bottom surface of the intake duct is formed in a tapered shape so that the distance becomes narrower as it approaches the fan opening provided in the casing. Yes, it is possible to suppress turbulent flow, increase the air volume and improve the drying performance, and to suppress noise associated therewith.
[0024]
According to a fourth aspect of the present invention, in the invention of the second aspect , a plurality of curved ribs are formed inside the intake duct along the flow of the intake air to suppress turbulent flow. The air flow can be increased to improve the drying performance, and the noise accompanying it can be suppressed.In addition, the user accidentally inserts a finger from the air intake and touches the blowing fan during operation to cause injury. Can be prevented.
[0025]
The invention according to claim 5 is the invention according to any one of claims 1 to 4 , wherein the intake filter mounting portion is provided with an intake filter, and the intake filter mounting portion for attaching the intake filter to the intake duct of the hot air blowing means is a unit. It is possible to prevent the dust contained in the outside air from adhering to the heater. Further, the unitization is further advanced, the machine body is enlarged and the weight does not need to be increased, and the washing machine type can be easily switched. Furthermore, by providing an intake filter, the sound pressure leaking outside can be lowered, and a washing / drying machine with reduced noise can be realized.
[0026]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0027]
Example 1
2 is a partially cutaway sectional view of the hot air blowing means 33 of the present embodiment as viewed from above, FIG. 3 is a partially cutaway longitudinal sectional view as viewed from the side, and FIG. 4 is a bottom view as viewed from below. is there.
[0028]
As shown in the figure, the blower fan 35 driven by the blower motor 34 is a centrifugal fan having a central axis of rotation in the vertical direction, and is formed by a first casing (casing) 36 and a second casing (casing) 37. The vortex chamber 38 is disposed. On the downstream side of the vortex chamber 38, a heater 39 is disposed in a warm air supply path 40 that is similarly formed by the first casing 36 and the second casing 37.
[0029]
A thermistor 41 is disposed on the downstream side of the heater 39 in the hot air supply path 40, and an upper bellows-like hose 43 is joined to an opening 42 formed in the second casing 37 on the downstream side to blow warm air. It is configured as follows. On the upstream side of the vortex chamber 38, an intake duct 44 for taking in outside air is arranged in the lower part of the second casing 37, and outside air is taken in from the rear of the airframe.
[0030]
The above-described blower motor 34, blower fan 35, first casing 36, second casing 37, heater 39, thermistor 41, upper bellows-like hose 43, and intake duct 44 are unitized to constitute the hot air blowing means 33. is doing.
[0031]
FIG. 1 is a longitudinal sectional view of the washing and drying machine of the present embodiment. As shown in the figure, the unitized warm air blowing means 33 is disposed in an outer frame cover 46 that covers the upper portion of the outer frame 45. The hot air blown from the hot air blowing means 33 is connected to the hot air supply port 48 formed in the outer tank cover 47 from the upper bellows-like hose 43 so that the hot air is supplied into the inner tank 4. Yes.
[0032]
Further, an inner lid 49 is provided on the outer tank cover 47 so as to be freely opened and closed so that clothes can be taken in and out. The outer tank cover 47 is formed with an exhaust port 50 for exhausting hot air supplied from the hot air supply port 48 to the inner tank 4. Further, a mesh-like exhaust filter 51 is provided outside the exhaust port 50.
[0033]
The control device 52 includes a microcomputer and controls operations of the motor 11, the clutch 12, the blower motor 34, the heater 39, the water supply valve (not shown), the drain valve 28, and the like, and is washed, rinsed, dehydrated, and dried. The series of strokes is sequentially controlled.
[0034]
The thermistor 41 detects the temperature of the hot air supplied from the hot air supply path 40 and is provided between the heater 39 of the hot air supply path 40 and the upper bellows-like hose 43. The control device 52 receives the detection output from the thermistor 41 and monitors whether the hot air temperature is normal.
[0035]
The operation in the above configuration will be described. Since the operation from the washing process to the dehydration process is the same as the operation of the conventional example, the description thereof is omitted.
[0036]
When the drying process is started, the drain valve 28 is closed and the clutch 12 is switched to the washing side, the motor 11 is driven and transmitted to the rotary blade 6, the rotary blade 6 is rotated forward and reverse, and the agitation protrusion 10 applies the clothes. And stir. At this time, the air blowing motor 34 and the heater 39 of the warm air blowing means 33 are energized, the outside air is sucked from behind and heated, and the warm air is sent to the upper bellows-like hose 43.
[0037]
And it connects with the warm air supply port 48 formed in the outer tank cover 47 from the upper bellows-like hose 43, and warm air is supplied in the inner tank 4. FIG. The warm air blown into the inner tub 4 evaporates moisture from the clothing, then rises upward from the inner tub 4, and exhausts through the exhaust filter 51 from the exhaust port 50 formed in the outer tub cover 47.
[0038]
As described above, in this embodiment, drying can be performed with a simple structure, and the main body of the machine body can be enlarged and the weight does not need to be increased. Furthermore, since the warm air blowing means 33 is unitized, the model of the washing / drying machine can be easily switched, and even though the basic design is the same, the model equipped with the unitized warm air blowing means 33 is the washing / drying machine, hot air blowing Models that are not equipped with the means 33 can be easily switched, such as a washing machine.
[0039]
In addition, a ventilation path with less pressure loss and air leakage can be formed, the air volume can be increased and the drying performance can be improved. In addition, since air is sucked from the rear, noise such as wind noise caused by the blower fan 35 is less likely to come forward. , It is possible to realize a washing and drying machine with reduced noise.
[0040]
In this embodiment, the blower motor 34, the blower fan 35, the first casing 36, the second casing 37, the heater 39, the thermistor 41, the upper bellows-like hose 43, and the intake duct 44 are unitized into warm air. Although the air blowing means 33 is configured, it is only necessary that at least one of the air blowing fan 35 for sucking outside air, the first casing 36, the second casing 37, and the heater 39 be unitized.
[0041]
Further, the intake duct 44 may be formed integrally with the second casing 37.
[0042]
In the present embodiment, the rotation center axis of the blower fan 35 is configured in the vertical direction, but is not limited to the vertical direction and may be in any direction.
[0043]
Furthermore, although the intake duct 44 for taking in outside air is formed integrally with the lower portion of the second casing 37, it may be formed in any direction by changing the arrangement.
[0044]
(Example 2)
As shown in FIG. 5 and FIG. 6, the warm air blowing means 33a is configured such that the first side wall 53 and the second side wall 54 of the intake duct 44a are formed in a curved shape along the flow of the intake air. The bottom surface 55 of the intake duct 44a is formed in a taper shape so that the distance becomes narrower as the fan opening 56 provided in the second casing 37 is approached. Other configurations are the same as those of the first embodiment.
[0045]
The operation in the above configuration will be described. When the air blowing motor 34 of the hot air blowing means 33a is energized, the blower fan 35 rotates and the central portion becomes negative pressure, and the outside air is sucked. At this time, the air to be sucked is influenced by the rotation of the blower fan 35 and is sucked in a curve, not in a straight line.
[0046]
Since the first side wall 53 and the second side wall 54 of the intake duct 44a are formed in a curved surface along the flow of the air to be sucked in, the turbulent flow is thereby suppressed and the air volume is increased to improve the drying performance. And noise associated therewith can be suppressed.
[0047]
In the present embodiment, both the first side wall 53 and the second side wall 54 of the intake duct 44a are formed in a curved surface along the flow of the intake air, but either one may be used.
[0048]
(Example 3)
As shown in FIGS. 7 and 8, the hot air blowing means 33b has a plurality of curved ribs 57 along the flow of the intake air inside the intake duct 44b. Other configurations are the same as those in the first or second embodiment.
[0049]
As a result, the turbulence can be suppressed, the air volume can be increased and the drying performance can be improved, and the noise accompanying it can be suppressed. It is possible to prevent injury from coming into contact with the fan 35.
[0050]
(Example 4)
As shown in FIG. 9, an intake filter mounting portion 58 and an intake filter 60 formed integrally with the handle 59 are arranged as a unit behind the intake duct 44 of the hot air blowing means 33. Other configurations are the same as those in the first or second embodiment.
[0051]
Thereby, it is possible to prevent the dust contained in the outside air from adhering to the heater 39. Further, the unitization is further advanced, and the main body of the machine body can be enlarged and the weight does not need to be increased, and the model of the washing / drying machine can be easily switched. Furthermore, by providing the intake filter 60, the sound pressure itself leaking to the outside can be lowered, and a washing / drying machine with reduced noise can be realized.
[0052]
The intake air filter 60 may be detachably attached to the hot air blowing means 33.
[0053]
(Example 5)
As shown in FIG. 10, the intake duct 44c of the hot air blowing means 33c protrudes rearward from the outer frame 45, opens the lower part of the protruding portion of the intake duct 44c, and forms a sound insulating wall 61 on the rear surface. . In addition, an intake filter mounting portion 58c, a handle 59c, and an intake filter 60c are provided as a unit in a part of the intake duct 44c. Other configurations are the same as those of the first embodiment.
[0054]
Thereby, since air is sucked from below the rear surface, noise such as wind noise generated by the blower fan 35 is less likely to come forward, and noise can be suppressed. Furthermore, by providing the intake filter 60c, the sound pressure itself leaking to the outside can be reduced, and a washing / drying machine with reduced noise can be realized.
[0055]
【The invention's effect】
According to the invention described in claim 1 of the present invention as described above, the outer frame, the outer frame cover covering an upper portion of the outer frame, an outer tub which is suspended elastically in the outer frame, An inner tub having a rotation center axis in a vertical direction and rotatably disposed in the outer tub, an intake duct for sucking in the outside air, a blower fan and a casing for blowing the sucked in outside air, and a heater for heating the outside air at least the intake duct, the blowing fan, and a hot air blowing means provided on said casing and said outer frame behind parts within a cover having the heater, the intake duct protrudes rearward from the outer frame The projecting part of the air intake duct has a lower surface opened, and a sound insulation wall is formed on the rear surface of the air intake duct so that outside air can be sucked in from the opened lower surface. Can Increasing the body, and it is not necessary to increase the weight. In addition, since the hot air blowing means is configured as described above, it becomes easy to switch the model of the washing and drying machine, and the basic design is the same, but the model equipped with the hot air blowing means is the washing dryer and the hot air blowing means. Models that are not equipped with can be easily switched, such as a washing machine. In addition, the air flow can be increased by forming a blowing path with less pressure loss and air leakage, and the drying performance can be improved. A washing and drying machine can be realized.
[0056]
According to the second aspect of the present invention, since the side wall of the intake duct is formed in a curved shape along the flow of air sucked by the blower fan , the turbulent flow is suppressed and the air volume is increased to thereby improve the drying performance. Can be improved, and the accompanying noise can be suppressed.
[0057]
According to the invention described in claim 3 , since the bottom surface of the intake duct is tapered so that the distance becomes narrower as it approaches the fan opening provided in the casing, the turbulence is suppressed and the air volume is increased. As a result, the drying performance can be improved and the noise associated therewith can be suppressed.
[0058]
According to the fourth aspect of the present invention, since a plurality of curved ribs along the flow of air to be sucked are formed inside the air intake duct, the turbulent flow is suppressed and the air volume is increased to thereby improve the drying performance. In addition, the noise associated therewith can be suppressed, and further, it is possible to prevent the user from accidentally putting his / her finger through the air inlet and coming into contact with the blowing fan during operation.
[0059]
According to the invention described in claim 5 , since the intake filter mounting portion for installing the intake filter is provided as a unit in the intake duct of the hot air blowing means, the heater is included in the outside air. It can prevent dust from being attached. Further, the unitization is further advanced, the machine body is enlarged and the weight does not need to be increased, and the washing machine type can be easily switched. Furthermore, by providing an intake filter, the sound pressure leaking outside can be lowered, and a washing / drying machine with reduced noise can be realized.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a washing / drying machine according to a first embodiment of the present invention. FIG. 2 is a partially cutaway sectional view of hot air blowing means of the washing / drying machine. FIG. 4 is a bottom view of the hot air blowing means of the washer / dryer. FIG. 5 is one of the hot air blowing means of the washer / dryer according to the second embodiment of the present invention. FIG. 6 is a bottom view of the hot air blowing means of the washer / dryer. FIG. 7 is a partially cutaway vertical section of the hot air blowing means of the washer / dryer according to the third embodiment of the present invention. FIG. 8 is a partially cut-away lower sectional view of the hot air blowing means of the washing / drying machine. FIG. 9 is a longitudinal sectional view of the washing / drying machine according to the fourth embodiment of the present invention. FIG. 11 is a longitudinal sectional view of a washing / drying machine according to the fifth embodiment. FIG. 11 is a longitudinal sectional view of a conventional washing / drying machine.
3 Outer tank 4 Inner tank 33 Hot air blowing means 35 Blower fan 36 First casing (casing)
37 Second casing (casing)
39 Heater 44 Air intake duct 45 Outer frame 46 Outer frame cover

Claims (5)

An outer frame, an outer frame cover covering an upper portion of the outer frame, rotatably distribution and the outer tub which is suspended elastically in the outer frame, within the outer tub has a rotation center axis in the vertical direction It has an inner tub which is set, an intake duct for sucking the outside air, a blowing fan and the casing for blowing air to the outdoor air, a heater for heating the outside air, at least the intake duct, the air blowing fan, the casing and the heater and a hot air blowing means provided on the rear part in the outer frame within the cover, the intake duct is made to protrude rearward from the outer frame, the protruding portion of the intake duct, with an opening lower surface, said A washing and drying machine configured to form a sound insulation wall on the rear surface of the intake duct and to suck outside air from the opened lower surface . Side wall of the intake duct, washing and drying machine of claim 1, wherein formed in a curved shape along the flow of air taken by the blower fan.   The washing / drying machine according to claim 1 or 2, wherein the bottom surface of the air intake duct is formed in a tapered shape so that the distance becomes narrower as it approaches a fan opening provided in the casing. The washing / drying machine according to claim 2, wherein a plurality of curved ribs are formed inside the intake duct along the flow of air to be sucked. The washing and drying machine according to any one of claims 1 to 4 , further comprising an intake filter, wherein an intake filter mounting portion for mounting the intake filter is provided as a unit in an intake duct of a hot air blowing means.

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