JP4635394B2 - 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. 3, 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, the inner tub 4 for storing the laundry and the object to be dried is arranged to be rotatable around a washing / dehydrating shaft 5 having a hollow and double structure. A rotary blade 6 for stirring the laundry or the drying object is rotatably arranged. 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 (driving means) 8 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 9 that switches the transmission of rotational force to the washing / dehydrating shaft 5 and the washing / dehydrating shaft 5 during washing or dehydrating. 6 is connected.
[0005]
The heat exchanger 10 dehumidifies the circulated wet warm air, and is disposed in the outer frame 1. One end of the heat exchanger 10 is connected to a drain port 11 provided in the lower part of the outer tub 3, and the other end is a circulation path. 12 is connected to one end of the blower 13 for drying. The other end of the drying fan 13 is connected to a hot air supply path 15 having a heater 14 as a heating means, and constitutes a hot air circulation path 17 that passes through the upper bellows-like hose 16 and is circulated to the inner tank 4. ing.
[0006]
The outer tub 3 is provided with an outer tub cover 18 that hermetically covers the upper surface of the outer tub 3, and the outer tub cover 18 is provided with a hot air blowing hole 19 from the upper and lower bellows-like hose 16 that can be expanded and contracted. Yes. Further, an inner lid 20 is provided on the outer tank cover 18 so as to be freely opened and closed so that clothes can be taken in and out.
[0007]
The casing 21 covers the upper part of the outer frame 1, has an open / close lid 22 that can be opened and closed, and has a control device (control means) 23, a water supply valve 24, a drying blower 13, and a heater 14. Here, the circulation path 12 spans the outer frame 1 and the casing 21, and is configured to be airtightly connected to the heat exchanger 10 and the drying fan 13. 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 (cooling blower means) 26 is attached to the side surface of the outer frame 1 and introduces cooling air into the outer frame 1 from the outside to cool the outer tub 3, the heat exchanger 10, and the like. Yes.
[0008]
The control device 23 controls the operations of the motor 8, the clutch 9, the drying fan 13, the heater 14, the water supply valve 24, the drain valve 25, the cooling fan 26, and the like, and controls each step of washing, rinsing, dehydration, and drying. It is configured to do.
[0009]
The operation in the above configuration will be described. In the washing process, the opening / closing lid 22 and the inner lid 20 are opened, 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 the washing is completed, the drain valve 25 is opened to drain the water in the inner tub 4 from the drain hose 27, the clutch 9 of the transmission mechanism is switched to the dehydration side, and the power of the motor 8 is driven to the dehydrating shaft. The moisture is separated from the laundry by transmitting to the inner tub 4 and rotating it to apply centrifugal force to the laundry.
[0011]
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 19 by the drying blower 13 and the heater 14 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 19 evaporates moisture from the laundry, and then exits from the inner tub 4 to the inside of the outer tub 3 before reaching the heat exchanger 10.
[0012]
Inflow of external air by the cooling blower 26 installed on the side surface of the outer frame 1 when warm air containing moisture from the laundry deprives moisture passes through the inner wall of the outer tub 3 or the heat exchanger 10. Thus, the outer walls of the outer tub 3 and the heat exchanger 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 13. The moisture condensed on the inner wall of the outer tub 3 passes through the drain valve 25 and is discharged from the drain hose 27 together with the moisture condensed on the inner wall of the heat exchanger 10.
[0013]
As described above, the hot air is circulated through the hot air circulation path 17 to dry the object to be dried in the inner tank 4.
[0014]
[Problems to be solved by the invention]
However, in such a conventional configuration, the circulation path 12 spans the outer frame 1 and the casing 21 and is connected to the heat exchanger 10 and the drying fan 13. When the fuselage is dropped or an impact such as external force is applied to the fuselage, the connection between the heat exchanger 10 and the drying fan 13 cannot be secured due to the distortion of the outer frame 1 or the shock of the casing 21, and clothing There has been a problem that drying becomes insufficient and drying time becomes long.
[0015]
An object of the present invention is to solve the above-described problems, and it is an object of the present invention to prevent a decrease in airtightness of a hot air circulation path and improve reliability even when an external force is applied to the airframe during handling.
[0016]
[Means for Solving the Problems]
To achieve the above object, the present invention rotatably supports an inner tub having a rotation center axis in a substantially vertical direction and accommodating laundry in an outer tub elastically suspended in an outer frame, A rotor blade is rotatably provided at the inner bottom of the inner tank, the inner tank or the rotor blade is driven by a driving means, and warm air heated by the heating means is blown into the inner tank by the air blowing means, almost at the upper part of the outer frame. the whole is internally provided with heating means and the blower means in a housing that covers the warm air circulation path for circulating the hot air by the air supply means has a heat exchanger to the housing in the outer frame, driving means by the control means, blowing means, controls the heating hand stage of any operation, washing, rinsing, dehydration, and configured to control the stroke of such drying, the outer frame and the housing detachably configured, warm air circulating path upper path And the lower path, one end of the upper path is airtightly fixed to the blowing means and attached to the housing, and the lower path is Attached to the outer frame end and hermetically fixed to the heat exchanger, it is obtained by engaging airtightly fixed to the other end of each of the upper path and the lower path via the elastic body.
[0017]
Thereby, even if an external force is applied to the airframe when handling the cargo, it is possible to prevent the airtightness of the hot air circulation path from being lowered, and the reliability can be improved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, an outer tub elastically suspended in an outer frame and a rotation center axis in a substantially vertical direction are rotatably supported in the outer tub and accommodates laundry. An inner tub that rotates, a rotor blade that is rotatably provided at the inner bottom of the inner tub, a driving means that drives the inner tub or the rotor wing, a blower means that blows air into the inner tub, and an air blow by the blower means A heating means for heating the air, a casing that covers substantially the entire upper part of the outer frame and that internally includes the blowing means and the heating means, and a heat exchanger housed in the outer frame. and the hot-air circulating path for circulating the hot air by the blowing means, before Symbol driving means, air blowing means, controls the heating hand stage of any operation, washing, rinsing, dehydration, and control means for controlling the stroke of such drying wherein the said outer frame is a housing detachably configured, the warm air circulating path upper path and the lower The upper path has one end airtightly fixed to the air blowing means and attached to the housing, and the lower path has one end airtightly fixed to the heat exchanger and attached to the outer frame, each of the other end portion of the upper path and the lower path is obtained by engaging the fixed airtightly through an elastic member, an upper path and a lower path constituting the hot air circulation path respectively and housing side and the outer frame side Because it is divided and airtightly fixed, even if external force is applied to the aircraft during handling, the impact applied to the connection part of the hot air circulation path can be dispersed, preventing the deterioration of the air tightness of the hot air circulation path It is possible to improve repairability and reliability.
[0019]
According to a second aspect of the present invention, in the first aspect of the present invention, a convex portion is provided on the entire periphery of the upper path, and a concave portion containing an elastic body is provided on the end of the lower path. The upper part path and the lower path can be connected via the elastic body, the impact applied to the connection part of the hot air circulation path can be reduced, and the hot air circulation path A decrease in hermeticity can be prevented.
[0020]
According to a third aspect of the present invention, in the first aspect of the present invention, a locking portion is provided on the outer periphery in the vicinity of the end portion of the upper path, and the locking portion is locked on the outer periphery of the end portion of the lower path. A locking part is provided, and the upper path and the lower path are fixedly fixed, and repairability and assemblability can be improved while ensuring airtightness of the hot air circulation path.
[0021]
【Example】
Hereinafter, an embodiment of the present invention 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.
[0022]
As shown in FIGS. 1 and 2, the hot air circulation path 28 is heated by a heater (heating means) 14, and the hot air blown into the inner tank 4 by a drying blower (blower means) 13 is converted into a heat exchanger. 10, having a lower path 29 and an upper path 30. The upper part of the heat exchanger 10 constituting the warm air circulation path 28 is hermetically sealed in the order of the lower path 29, the upper path 30, and the drying fan 13. The warm air circulating through the warm air circulation path 28 is discharged by opening the drain valve 25 connected to the drain port 11 provided on the inlet side of the heat exchanger 10.
[0023]
Here, the lower path 29 is attached to the outer frame 1 with its lower end airtightly fixed to the upper end of the heat exchanger 10 inside the outer frame 1, and a recess 31 is provided at the upper end around the entire circumference, and an elastic body (silicon packing). 32 is fitted and partly extended to provide an extended portion 33, and a hole (locked portion) 34 is formed in the extended portion 33. On the other hand, the upper path 30 is airtightly fixed to the drying fan 13 in the housing 21 and attached to the housing 21, and a convex portion 35 is provided on the entire periphery so as to press the elastic body 32 at the lower end. A claw portion (locking portion) 36 is formed on the body portion corresponding to the hole 34.
[0024]
Accordingly, the lower path 29 and the upper path 30 are configured to be hermetically engaged and fixed substantially at the same time as the outer frame 1 and the casing 21 are fixed to each other with the screw 37 or the like. Other configurations are the same as those of the conventional example.
[0025]
The operation in the above configuration will be described. The basic operation from the washing process to the drying process is the same as the operation of the conventional example, and the description thereof is omitted.
[0026]
Since the sealing circulation path 28 is divided into a lower path 29 attached to the outer frame 1 and an upper path 30 attached to the housing 21, the lower path 29 is connected to the outer frame 1 before completely assembling the machine body. As an outer frame unit to which the upper path 30 is attached to the casing 21 and a casing unit to which the upper path 30 is attached, an airtightness test can be carried out, respectively, and the reliability of the airtightness of the junction of the hot air circulation path 28 is improved. be able to.
[0027]
Also, in the unlikely event that an impact is applied to the airframe, such as dropping, due to load handling such as transportation, installation, etc., it is divided into the lower path 29 and the upper path 30 and joined via the elastic body 32, Distortion of the outer frame 1 or an external force applied to the housing 21 can be dispersed and an impact can be absorbed to prevent a decrease in the airtightness of the joint portion of the hot air circulation path 28, thereby improving reliability.
[0028]
In addition, since the claw portion 36 of the upper passage 30 is fixedly secured to the hole 34 of the lower passage 29, the claw portion 36 is removed from the hole 34 and the screw 37 is removed at the time of repair such as replacement of the inner tank 3. Thus, the housing unit can be easily removed from the lower outer frame unit, and repair workability can be improved.
[0029]
In the present embodiment, the concave portion 31 is provided at the tip of the lower path 29 and the elastic body 32 is fitted, and the convex portion 35 is provided at the tip of the upper path 30 to be in pressure contact with the elastic body 32. It goes without saying that the same effect can be obtained even if a concave portion is provided at the tip of the path 30 to fit the elastic body 32 and a convex portion is provided at the tip of the lower path 29 to press-contact the elastic body 32.
[0030]
In this embodiment, the extending portion 33 is provided in the lower path 29, a hole (locked portion) 34 is formed in the extending portion 33, and the claw portion (engagement) corresponding to the hole 34 is formed in the upper path 30. The lower path 29 and the upper path 30 are fixedly fixed by providing a stop portion 36, but an extension portion 33 is provided in the upper path 30 and a hole (locked portion) is formed in the extension portion 33. The same effect can be obtained by forming 34 and providing a claw portion (locking portion) 36 corresponding to the hole 34 in the lower path 29 to fix the lower path 29 and the upper path 30 together. Needless to say.
[0031]
【The invention's effect】
As described above, according to the first aspect of the present invention, the outer tub elastically suspended in the outer frame and the rotation center axis in the substantially vertical direction are rotatable in the outer tub. An inner tub that supports and accommodates laundry; a rotary blade that is rotatably provided on the inner bottom of the inner tub; a driving means that drives the inner tub or the rotary wing; and a blower that blows air into the inner tub. A heating unit that heats the air blown by the blowing unit, a housing that covers substantially the entire upper portion of the outer frame and includes the blowing unit and the heating unit, and is housed in the outer frame. and the hot-air circulating path for circulating the hot air by the blowing means have a heat exchanger, before Symbol driving means, air blowing means, controls the heating hand stage of any operation, washing, rinsing, dehydrating, the stroke of such drying and control means for controlling the said outer frame is a housing detachably configured, the warm air circulation The path has an upper path and a lower path, and the upper path is attached to the housing with one end hermetically fixed to the air blowing means, and the lower path is hermetically fixed with one end to the heat exchanger. attached to the outer frame, the upper path and each from the engaging fixing the other end portion airtightly through the elastic body, the upper path constituting the hot air circulation path and the outer and the respective housing side lower path of the lower path Because it is airtightly fixed separately from the frame side, the impact applied to the connection part of the hot air circulation path can be dispersed even if external force etc. is applied to the fuselage during handling, and the airtightness of the hot air circulation path is reduced. A fall can be prevented and repairability and reliability can be improved.
[0032]
According to the second aspect of the present invention, a convex portion is provided on the entire circumference of the end portion of the upper path, and a concave portion containing an elastic body is provided on the end portion of the lower path, and the convex portion is provided on the elastic body. Since the pressure contact is made, the upper path and the lower path can be connected via an elastic body, the impact applied to the connection part of the hot air circulation path can be reduced, and the airtightness of the hot air circulation path can be prevented from being lowered. Can do.
[0033]
According to the invention of claim 3, a locking portion is provided on the outer periphery in the vicinity of the end portion of the upper path, and a locked portion that locks the locking portion is provided on the outer periphery of the end portion of the lower path. Since the upper path and the lower path are fixedly fixed, repairability and assembling performance can be improved while ensuring airtightness of the hot air circulation path.
[Brief description of the drawings]
1 is a cross-sectional view of a washing and drying machine according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part of the washing and drying machine. FIG. 3 is a cross-sectional view of a conventional washing and drying machine.
DESCRIPTION OF SYMBOLS 1 Outer frame 3 Outer tank 4 Inner tank 6 Rotor blade 8 Motor (drive means)
10 Heat exchanger 13 Blower for drying (air blowing means)
14 Heater (heating means)
21 Housing 23 Control device (control means)
26 Cooling blower (cooling blower means)
28 Warm air circulation route 29 Lower route 30 Upper route

Claims (3)

An outer tub elastically suspended in the outer frame, an inner tub having a central axis of rotation in a substantially vertical direction and rotatably supported in the outer tub; and an inner bottom of the inner tub A rotating blade provided rotatably, a driving means for driving the inner tank or the rotating blade, a blowing means for blowing air into the inner tank, a heating means for heating the air blown by the blowing means, and the outer A casing that covers substantially the entire upper part of the frame and that houses the air blowing means and the heating means, and a hot air circulation that is housed in the outer frame and has a heat exchanger to circulate hot air by the air blowing means a route, before Symbol driving means, air blowing means, controls the heating hand stage of any operation, washing, rinsing, dehydration, and control means for controlling the stroke of such drying, detachable from said housing and the outer frame capable constructed, the warm air circulating path and an upper path and a lower path, the upper path one The then hermetically fixed to said blowing means mounted on said housing, said lower path to hermetically fixed to one end to the heat exchanger attached to the outer frame, each of the other end portion of the upper path and the lower path washing dryer engaging fixed airtightly through the elastic body.   The washing / drying machine according to claim 1, wherein a convex portion is provided at an end portion of the upper path, a concave portion storing an elastic body is provided at an end portion of the lower path, and the convex portion is pressed against the elastic body.   A locking part is provided on the outer periphery in the vicinity of the end of the upper path, a locked part for locking the locking part is provided on the outer periphery of the end of the lower path, and the upper path and the lower path are fixedly fixed. Item 2. A washing and drying machine according to item 1.

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