JP4487414B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing and drying machine having a process of blowing warm air into an inner tub to dry laundry, and being able to carry out consistently from washing to drying.
[0002]
[Prior art]
Conventionally, this type of washing and drying machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 5, the housing 1 is provided with an outer tub 3 that is elastically suspended by a plurality of suspensions 2, and the suspension 2 absorbs vibration during dehydration. The outer tub 3 has a rotation center axis in a substantially vertical direction and is rotatable about a washing / dehydrating shaft 5 having a hollow and double inner tub 4 for storing laundry or drying objects. The rotating blade 6 which stirs the laundry and the drying object is rotatably disposed on the inner bottom of the inner tub 4. The rotary blade 6 is formed in a pan shape whose outer periphery is inclined.
[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 7 is provided above. The motor 8 is attached to the bottom of the outer tub 3 and is connected to the inner tub 4 or the rotor blade 6 via the clutch 9 for switching the transmission of rotational force to the washing / dehydrating shaft 5 and the washing / dehydrating shaft 5 during washing or dehydrating. ing.
[0005]
The circulation duct 10 dehumidifies the humid hot air that circulates, and one end of the circulation duct 10 is connected to one end of the drying fan 11. The other end of the drying blower 11 is connected to a circulating air passage 13 having a heater 12 as a heating means, and is connected to the inner tank 4 through an upper connecting member 14 having elasticity. A hot air discharge member 15 is provided at the lower part of the outer tub 3, and the hot air discharge member 15 is connected to the circulation duct 11 via the elastic lower connecting member 16 and the switching valve 17 to circulate the hot air. A wind circulation path 18 is configured. Reference numeral 19 denotes a dehumidified water drain.
[0006]
The outer tub 3 is provided with an outer tub cover 20 that hermetically covers the upper surface of the outer tub 3, and a hot air outlet 21 from the upper connecting member 14 is opened in the outer tub cover 20. Further, an inner lid 22 is provided on the outer tank cover 20 so as to be freely opened and closed, and clothes are taken in and out.
[0007]
The case cover 23 covers the upper part of the case 1 and is provided with an operation display unit 24 a connected to the control device 24. Further, a drain valve 25 for draining water into the outer tub 3 is provided at the bottom of the outer tub 3. The cooling blower 26 is attached to the side surface of the housing 1 and configured to blow air so as to cool the outer tub 3, the circulation duct 10, and the like inside the housing 1.
[0008]
The control device 24 controls the operation of the motor 8, the clutch 9, the drying fan 11, the heater 12, the switching valve 17, the drain valve 25, the cooling fan 26, and the like, and controls each process of washing, rinsing, dehydration, and drying. Like to do.
[0009]
The operation in the above configuration will be described. In the washing process, laundry and detergent are put into the inner tub 4, and when the operation is started, water is supplied to a predetermined water level, and then the motor 8 is driven. At this time, the power of the motor 8 is transmitted to the rotary blade 6 through the washing shaft by the clutch 9 of the transmission mechanism unit, and the rotary blade 6 rotates to agitate the laundry, and the laundry or the inner tub 4 is performed by mechanical force acting by contact with the inner wall of 4 and the rotor blade 6 and hydrodynamic force.
[0010]
In the dehydration process, after washing is completed, the drain valve 25 is opened to drain the water in the inner tub 4, and then the clutch 9 of the transmission mechanism is switched to the dehydration side, and the power of the motor 8 is supplied to the inner tub 4 via the dehydration shaft. This is done by separating the moisture from the laundry by rotating it and rotating it to give centrifugal force to the laundry.
[0011]
In the drying process, the switching valve 17 is opened to form the hot air circulation path 18, the clutch 9 is switched to the washing side, the motor 8 is driven and transmitted to the rotating blade 6, and the rotating blade 6 is rapidly rotated forward and reverse. By doing so, the laundry stuck to the inner wall of the inner tub 4 after dehydration is peeled off. Next, warm air is sent to the warm air outlet 21 by the drying blower 11 and the heater 12 while rotating and rotating the rotary blade 6 so as to hook the laundry and stirring. The warm air blown into the inner tub 4 from the warm air outlet 21 evaporates moisture from the laundry, and then exits from the inner tub 4 to the inside of the outer tub 3 and then reaches the circulation duct 10.
[0012]
When hot air containing moisture from the laundry deprived of moisture passes through the inner wall of the outer tub 3 or the circulation duct 10, the inflow of external air by the cooling blower 26 installed on the side surface of the housing 1 The outer walls of the outer tub 3 and the circulation duct 10 are cooled, the moisture of the moist air is condensed on the inner walls, the hot air is dehumidified and cooled, and returns to the drying fan 11.
[0013]
The moisture condensed on the inner wall of the outer tub 3 passes through the switching valve 17 and is discharged from the dehumidified water outlet 19 together with the moisture condensed on the inner wall of the circulation duct 10. In this manner, the object to be dried in the inner tank 4 can be dried by circulating the warm air in the warm air circulation path 18.
[0014]
[Problems to be solved by the invention]
In such a conventional configuration, since the drainage path for draining the water in the inner tank 4 through the drainage valve 25 and the hot air circulation path 18 for circulating the hot air are provided separately and independently, The drainage valve 25 is required, the parts configuration of the lower part of the outer tub 3 is complicated, and the lower part of the outer tub 3 and the housing 1 are connected in two systems, greatly affecting vibration performance and reliability. In addition, there is a problem that the assembling property and the service maintenance property are poor and the manufacturing cost is high.
[0015]
In addition, since water remains in the path on the outer tub 3 side of the drain valve 25 at the time of drying, the dehumidification performance is poor, the humidity in the inner tub 4 is high, the moisture contained in the clothing is difficult to evaporate, and the drying time is long. It has become a cause of poor drying efficiency.
[0016]
The present invention solves the above-mentioned problems, simplifies the component configuration at the bottom of the outer tub, improves vibration performance and reliability, improves assembly, service maintenance, and dehumidification performance, and reduces manufacturing costs. The purpose is to do.
[0017]
[Means for Solving the Problems]
In order to achieve the above object, the present invention rotatably supports an inner tank having a rotation center axis in a substantially vertical direction in an outer tank that is elastically suspended in a casing, and rotates on the inner bottom of the inner tank. The blade is rotatably provided, the inner tank or the rotor blade is driven by the driving means, the hot air heated by the heating means is supplied into the inner tank by the hot air supply means, and the hot air circulation path having the circulation duct is circulated. The hot air discharge member that forms a part of the hot air circulation path is provided on the bottom surface of the outer tub, and the hot air discharge member and the circulation duct are connected by the elastic connecting member that forms a part of the hot air circulation path. and, in the hot air discharge member, provided with by connecting a drainage path dehumidification water dehumidified in the outer tank and the circulation duct is drained through the drain valve, the flow of the dehumidification water into the drain valve from the circulation duct so it easily reversed with the flow of air circulation, or near the bottom of the hot air discharge member In which an opening is provided to the partition walls and drain valve extending partitioning until coupling member near.
[0018]
As a result, the component configuration at the lower part of the outer tub can be simplified, the vibration performance and reliability can be improved, the assemblability, service maintenance performance and dehumidification performance can be improved, and the manufacturing cost can be reduced.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes an outer tub elastically suspended in a housing, an inner tub having a rotation center axis in a substantially vertical direction and rotatably supported in the outer tub, A rotating blade provided rotatably on the inner bottom of the inner tank, a driving means for driving the inner tank or the rotating blade, a hot air supplying means for supplying warm air into the inner tank, and a hot air supplying means. A heating means for heating the air to be blown, a hot air circulation path having a circulation duct for circulating the hot air by the hot air supply means, a part of the hot air circulation path, provided on the bottom surface of the outer tub A hot air discharge member, and an elastic connecting member that connects the hot air discharge member and the circulation duct to form a part of the hot air circulation path. Connects the drainage path through which the dehumidified water dehumidified in the outer tank and the circulation duct is drained through the drain valve Provided with Te, the as the flow of the dehumidification water from the circulation duct to the discharge valve is easily reversed with the flow of circulating air, extending from near the bottom of the hot air discharge member partitioning until the coupling member near A partition wall and an opening to the drain valve are provided, and by connecting the lower part of the outer tub and the housing in one system, the component configuration at the lower part of the outer tub can be simplified, and vibration performance Reliability, assembly, service maintenance, and dehumidification performance can be improved, and manufacturing costs can be reduced.
[0020]
Moreover, immediately after the warm air circulating in the warm air circulation path passes through the partition wall, the turbulent flow is caused by the connecting member, so that the water dehumidified in the inner tank and the outer tank can be easily drained, and The dehumidified water in the circulation duct in the direction opposite to the flow of the circulating wind is easily drained, and the dehumidifying performance can be further improved.
[0021]
The invention according to claim 2 is the invention according to claim 1, wherein the connecting member is configured such that the hot air discharge member side is set lower than the circulating duct side, and the remaining in the connecting member and the circulating duct during drainage. Water can be reduced, pressure loss of circulating air in the drying process can be reduced, and dehumidification performance can be improved.
[0022]
【Example】
Hereinafter, the present embodiment will be described 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.
[0023]
Example 1
As shown in FIG. 1, the outer tub 27 is elastically suspended in the housing 1 and rotatably supports the inner tub 4 having a rotation center axis in a substantially vertical direction. A hot air discharge member 29 that forms part of the hot air circulation path 28 is provided on the bottom surface of the outer tub 27, and the hot air discharge member 29 and the circulation duct 10 are elastic to form part of the hot air circulation path 28. Are connected by a lower connecting member (connecting member) 30. The hot air discharge member 29 is connected to the drainage passage 32 via the drainage valve 31.
[0024]
The control device 33 includes a motor (driving means) 8, a clutch 9, a drying blower (hot air supply means) 11, a heater (heating means) 12, a cooling blower 26, and a drain valve based on the setting by the operation display unit 33a. The operations such as 31 are controlled to control the steps of washing, rinsing, dewatering and drying. Other configurations are the same as those of the conventional example.
[0025]
The operation in the above configuration will be described. In the washing process, the laundry 8 and the detergent are put into the inner tub 4 with the drain valve 31 closed. When the operation is started, water is supplied to a predetermined water level, and then the motor 8 is driven. At this time, the power of the motor 8 is transmitted to the rotary blade 6 through the washing shaft by the clutch 9 of the transmission mechanism unit, and the rotary blade 6 rotates to agitate the laundry, and the laundry or the inner tub 4 is performed by mechanical force acting by contact with the inner wall of 4 and the rotor blade 6 and hydrodynamic force.
[0026]
In the dehydration process, after washing is completed, the drain valve 31 is opened to drain the water in the inner tub 4, the clutch 9 of the transmission mechanism is switched to the dehydration side, and the power of the motor 8 is transferred to the inner tub 4 via the dehydration shaft. This is done by separating the moisture from the laundry by rotating it and rotating it to give centrifugal force to the laundry.
[0027]
In the drying process, the clutch 9 is switched to the washing side, the motor 8 is driven and transmitted to the rotor blades 6, and the rotor blades 6 are rapidly rotated forward and reverse so that they stick to the inner wall of the inner tub 4 after dehydration. Peel off the laundry. Next, warm air is sent to the warm air outlet 21 by the drying blower 11 and the heater 12 while rotating and rotating the rotary blade 6 so as to hook the laundry and stirring.
[0028]
The hot air blown into the inner tub 4 from the hot air outlet 21 evaporates moisture from the laundry and then exits from the inner tub 4 to the inside of the outer tub 3, and then the hot air discharge member 29 and the lower connecting member. 30, through the circulation duct 10, and again led to the drying blower 11, the heater 12, and the hot air outlet 21 for circulation. The hot and humid air from which moisture is evaporated from the clothing is cooled and dehumidified by the cooling blower 26 when passing through the outer tub 27 and the circulation duct 10, and then again to the drying blower 11 and the heater 12. Will return.
[0029]
In the drying process, the drain valve 31 opens and closes at predetermined intervals under the control of the control device 33 and drains the dehumidified water dehumidified in the outer tub 27 and the circulation duct 10. Thereby, drying advances.
[0030]
In this way, by connecting the drainage valve 31 to the hot air discharge member 29, the drainage of the inner tank 4, the outer tank 27, The dehumidified water dehumidified by the circulation duct 10 can be drained, and the lower part of the outer tub 27 and the housing 1 can be connected by a single lower connecting member 30 to simplify the component configuration.
[0031]
Therefore, in the dehydration process, when the inner tub 4 rotates at a high speed of approximately 800 r / min and the clothes in the inner tub 4 are in an unbalanced state, the vibration of the entire outer tub 27 becomes large, and the suspension 2 Is installed near the lower part of the outer tub 27, the center of vibration is relatively near the lower part, but the casing 1 and the outer tub 27 are connected to one system of the lower connecting member 30. Since the influence on vibration and countermeasures can be narrowed down, vibration performance and reliability can be improved.
[0032]
Moreover, since the component structure of the lower part of the outer tub 27 can be simplified, it is excellent in the assembly property in a factory and the service maintenance property at the time of component replacement in a market, and manufacturing cost can be reduced.
[0033]
Further, since the drainage path 32 and the hot air circulation path 28 coexist, the structure is such that there is no residual water on the outer tank 27 side of the drainage valve 31, so the dehumidifying performance can be improved, and the humidity in the inner tank 2 is increased. The factor which becomes high can be reduced, evaporation of moisture contained in clothes can be promoted, drying time can be shortened, and drying efficiency can be improved.
[0034]
(Example 2)
As shown in FIG. 2, the lower connecting member (connecting member) 30 has an end portion on the warm air discharge member 29 side set lower than an end portion on the circulation duct 10 side. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0035]
The operation in the above configuration will be described. Since the basic operation from the washing process to the drying process is the same as that in the first embodiment, the description is omitted.
[0036]
At the time of drainage, since the end of the lower connecting member 30 on the warm air discharge member 29 side is set lower than the end of the circulating duct 10 side, residual water in the lower connecting member 30 and the circulating duct 10 is reduced. be able to.
[0037]
In the drying process, since the end of the lower connecting member 30 on the warm air discharge member 29 side is set lower than the end of the circulating duct 10 side, the flow of the circulating air in the lower connecting member 30 flows slightly upward. Therefore, the pressure loss of the circulating air at the inlet of the circulation duct 10 can be reduced, and the dehumidification performance can be improved.
[0038]
(Example 3)
As shown in FIG. 3, the hot air discharge member 29 is provided with a partition wall 36 that is partially partitioned, and forms a path 37 that communicates with the drain valve 31. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0039]
The operation in the above configuration will be described. Since the basic operation from the washing process to the drying process is the same as that in the first embodiment, the description is omitted.
[0040]
In the drying process, when the warm air circulating in the circulation duct 10 passes through the warm air discharge member 29, a turbulent flow is caused by the partition wall 36, whereby a liquid having a specific gravity greater than that of the gas, that is, the inner tank 4 and the outer tank 27. The water that has been dehumidified and discharged is easily drained to the drain valve 31, and the dehumidifying performance can be improved.
[0041]
In the present embodiment, the hot air discharge member 29 forms the path 37 communicating with the drain valve 31 by the partition wall 36 that partially partitions the hot air discharge member 29, but instead of the partition wall 36. Even when a step having an effect of causing turbulent flow of the circulating wind is formed, the same effect can be expected.
[0042]
Example 4
As shown in FIG. 4, hot air discharge member 29, the partition wall 36 which partially partitions provided, the openings 40 of the drain valve 31, the flow of the water discharge valve 31 is reversed and the flow of hot air It is provided as follows. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0043]
The operation in the above configuration will be described. Since the basic operation from the washing process to the drying process is the same as that in the first embodiment, the description is omitted.
[0044]
In the drying process, when the hot air circulating through the circulation duct 10 passes through the hot air discharge member 29, a turbulent flow is caused by the partition wall 36, so that the liquid having a higher specific gravity than the gas, that is, the inner tank 4 and the outer tank. The water dehumidified in 27 can be easily drained to the drain valve 31 and the dehumidifying performance can be improved.
[0045]
Further, since the partition wall 36 of the hot air discharge member 29 is formed up to the vicinity of the lower connecting member 30, a turbulent flow of the circulating air is generated in the lower connecting member 30, and the circulating duct is opposed to the flow of the circulating air. 10, the dehumidified water 41 is easily drained, and the dehumidifying performance can be improved.
[0046]
【The invention's effect】
As described above, according to the first aspect of the present invention, the outer tub elastically supported in the housing and the rotation center axis in the substantially vertical direction are rotatably supported in the outer tub. An inner tank, a rotating blade provided rotatably on the inner bottom of the inner tank, a driving means for driving the inner tank or the rotating blade, a hot air supply means for supplying hot air into the inner tank, A heating means for heating air blown by the hot air supply means, a hot air circulation path having a circulation duct for circulating hot air by the hot air supply means, and forming a part of the hot air circulation path A hot air discharge member provided on a bottom surface of the outer tub, and an elastic connecting member that connects the hot air discharge member and the circulation duct to form a part of the hot air circulation path, and In the discharge member, dehumidified water dehumidified in the outer tub and the circulation duct is drained through a drain valve. That together with a drainage path provided by connecting said as the flow of the dehumidification water from the circulation duct to the discharge valve is easily reversed with the flow of circulating air, extending from near the bottom of the hot air discharge member said Since the partition wall that divides up to the vicinity of the connecting member and the opening to the drain valve are provided, the parts configuration of the lower part of the outer tub can be simplified by connecting the lower part of the outer tub and the housing in one system. Vibration performance, reliability, assembly, service maintenance, dehumidification performance can be improved, and manufacturing costs can be reduced.
[0047]
Moreover, immediately after the warm air circulating in the warm air circulation path passes through the partition wall, the turbulent flow is caused by the connecting member, so that the water dehumidified in the inner tank and the outer tank can be easily drained, and The dehumidified water in the circulation duct in the direction opposite to the flow of the circulating wind is easily drained, and the dehumidifying performance can be further improved.
[0048]
Further, according to the invention of claim 2, since the connecting member is set on the hot air discharge member side lower than the circulation duct side, the remaining water in the connecting member and the circulation duct can be reduced during drainage, The pressure loss of the circulating air during the drying process can be reduced, and the dehumidifying performance can be improved.
[Brief description of the drawings]
FIG. 1 is a sectional view of a washing / drying machine according to a first embodiment of the present invention. FIG. 2 is a sectional view of a main part of the washing / drying machine according to a second embodiment of the present invention. Cross-sectional view of the main part of the washing and drying machine of the embodiment [FIG. 4] Cross-sectional view of the main part of the washing and drying machine of the fourth embodiment of the present invention [FIG.
1 Housing 4 Inner tank 8 Motor (drive means)
6 Rotating blade 10 Circulating duct 11 Blower for drying (hot air supply means)
12 Heater (heating means)
27 Outer tank 28 Hot air circulation path 29 Hot air discharge member 30 Lower connection member (connection member)
31 Drain valve 32 Drainage route

Claims (2)

An outer tub that is elastically suspended in the housing, an inner tub that has a central axis of rotation in a substantially vertical direction and is rotatably supported in the outer tub, and a rotation that is rotatably provided on the inner bottom of the inner tub. A blade, driving means for driving the inner tub or rotor, hot air supply means for supplying warm air into the inner tub, heating means for heating air blown by the hot air supply means, and circulation A hot air circulation path that circulates the hot air by the hot air supply means having a duct, a hot air discharge member that forms part of the hot air circulation path and is provided on a bottom surface of the outer tub, and the hot air discharge member And a circulation connecting member that forms part of the hot air circulation path, and the hot air discharge member includes dehumidified water dehumidified by the outer tub and the circulation duct. In addition to providing a drainage path that is drained through a drain valve, the circulation duct Wherein as the flow of the dehumidification water into the water discharge valve is easily reversed with the flow of circulation air from the partition wall and the water discharge valve extends from near the bottom of the hot air discharge member for dividing up the connecting member near A washer-dryer with an opening to.   The washing / drying machine according to claim 1, wherein the connecting member is set such that the hot air discharge member side is lower than the circulation duct side.

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