JP2002159787A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the reliability on a controller, to improve the assembling property and service maintenance property and also to reduce the production cost in a washing and drying machine which has a process for supplying a warm air into an internal tub and drying laundry. SOLUTION: The internal tub 4 which has a rotary center axis in the nearly vertical direction, stores laundry and is provided with a ventilation hole, is freely rotatably supported inside an external tub 3 which is elastically hung in a case 1, a rotary blade 6 for stirring laundry is arranged in the inner bottom part of the internal tub 4, the internal tub 4 or the rotary blade 6 is driven by a motor 8, the warm air is supplied into the internal tub 4 by a drying air blower 15 and a heater 16 and the outer surface of the external tub 3 is cooled by a cooling air blower 25. A control means controls the respective processes of washing, rinsing, dehydrating and drying. The controller 30 provided with a load driving means and the control means is integrally formed by concentration and nearly vertically arranged in the rear surface part 43 of a case 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing / drying machine having a process of drying laundry by blowing warm air into an inner tub, and capable of performing washing to drying consistently.

[0002]

2. Description of the Related Art Conventionally, this type of washing / drying machine has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 6, a housing 1 has an outer tub 3 elastically suspended by a plurality of suspensions 2 therein.
And the suspension 2 absorbs vibration during dehydration. Inside the outer tub 3, an inner tub 4 for accommodating laundry and objects to be dried is rotatably disposed around a washing / dehydrating shaft 5 having a hollow and double structure, and is provided at an inner bottom of the inner tub 4. The rotating blades 6 for stirring the laundry and the object to be dried are rotatably arranged.

In addition, a large number of ventilation holes 4a 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 rotary wing 6 via the clutch 9 and the washing / dehydrating shaft 5 for switching the transmission of rotational force to the washing / dehydrating shaft 5 during washing or spin-drying. ing. The rotor 6 has an inclined surface 10 on the outer periphery.
In the drying step, the object to be dried is easily soared upward along the inclined surface by the centrifugal force generated by the rotation of the rotary blade 6 in the drying process.

The heat exchange duct 12 is for dehumidifying the circulating hot air, and one end thereof is connected to a drain passage port 14 provided at the lower part of the outer tub 3 via a telescopic connection duct 13.
The other end is connected to one end of the drying blower 15. The other end of the drying blower 15 is connected to a hot air supply path 1 having a heater 16.
7 and through the upper bellows-shaped hose 18 to the inner tub 4 to circulate. Drying blower 15
The heater 16 and the heater 16 constitute hot air blowing means.

The outer tub 3 is provided with an outer tub cover 19 for airtightly covering the upper surface of the outer tub 3. The outer tub cover 19 is provided with a hot air outlet 20 from a telescopic upper bellows-shaped hose 18. It is open. An inner lid 21 is provided on the outer tank cover 19 so as to be openable and closable so that clothes can be taken in and out.

[0007] A drain valve 22 for draining water into the outer tub 3 is provided at the bottom of the outer tub 3 and connected to the heat exchange duct 12 and the connection duct 13 via a drain duct 23. Drain water from drain 12, drain valve 23, drain valve 2
2 to drain water from the drain hose 24 to the outside of the machine.

[0008] The cooling blower 25 is attached to the side surface of the housing 1 so as to blow air into the housing 1 so as to cool the outer tub 3 and the heat exchange duct 12.

The load drive control unit 26 and the stroke control unit 27
Constitutes a control device, and includes a motor 8, a clutch 9, a drying fan 15, a heater 16, a drain valve 22, and a cooling fan 2.
5 controls the operations of washing, rinsing, spin-drying, and drying. The load drive control unit 26 includes a load drive unit including a large current control component such as a bidirectional thyristor and a relay. The motor 8, the clutch 9, the drying fan 15, the heater 16, the drain valve 22, the cooling fan 25, and the like are directly controlled to be turned on and off.

The stroke control section 27 comprises control means such as a microcomputer and controls the load drive control section 26 by a predetermined program in accordance with an input set from the operation display section 28. It is located at the top inside. The operation display unit 28 is connected to the control device, is used by a user to input, and displays an operation state.

The operation of the above configuration will be described. In the washing process, the inner lid 21 is 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 clutch 9 of the transmission mechanism section
As a result, the power of the motor 8 is transmitted to the rotary blade 6 via the washing shaft, and the rotary blade 6 rotates, whereby the laundry is caught by the agitating protrusion 11 of the rotary blade 6 and drawn into the center.
The laundry in the lower part of the center of the inner tub 4 is pushed up to the upper part of the inner tub 4 by the pulled-in laundry. In this manner, the laundry in the inner tub 4 is agitated, and the washing is performed by the mechanical force exerted by contact between the laundry or the inner wall of the inner tub 4 and the rotating blades 6 and the water flow force.

In the dehydration step, after washing is completed, the drain valve 22 is opened to drain the water in the inner tub 4 from the drain hose 24,
By switching the clutch 9 of the transmission mechanism to the dehydrating side, transmitting the power of the motor 8 to the inner tub 4 via the dehydrating shaft and rotating it, and applying centrifugal force to the laundry to separate the water from the laundry. Do with.

In the drying process, the clutch 9 is switched to the washing side, and the motor 8 is driven to transmit the rotation to the rotating blade 6.
Is quickly rotated in the normal and reverse directions to peel off the laundry stuck to the inner wall of the inner tub 4 after dehydration. Then, while rotating and reversing the rotating blades 6 to catch and stir the laundry with the stirring protrusion 11, warm air is blown out by a warm air blowing means including a drying blower 15 and a heater 16. Send to 20.
The hot air blown into the inner tub 4 from the hot air outlet 20 evaporates water from the laundry, and then exits from the inner tub 4 to the inside of the outer tub 3. It passes to the heat exchange duct 12.

When hot air containing moisture by removing moisture from the laundry passes through the inner wall of the outer tub 3 and the inside of the heat exchange duct 12, external air is supplied by the cooling blower 25 installed on the side surface of the housing 1. As a result, the outer tub 3 and the outer wall of the heat exchange duct 12 are cooled, and dew condensation of moisture occurs inside the outer tub 3 and the moist hot air is dehumidified and returns to the drying blower 15.
By circulating the warm air in this circulation path, the object to be dried in the inner tank 4 can be dried.

[0015]

In such a conventional configuration, a plurality of load drive control units 26 and stroke control units 27 constituting a control device are dispersed and arranged in a lower part and an upper part in the housing 1. Therefore, the load drive control unit 26 disposed in the lower part
Insulation degradation may occur due to water overflow in the waterproof pan 29, and the stroke control unit 27 disposed above has a problem in that insulation is likely to deteriorate due to the ease of dew condensation due to moisture. Was.

Further, by disposing a plurality of the load drive control units 26 and the stroke control units 27 in a distributed manner, problems such as a decrease in assemblability due to complicated wiring, complicated service maintenance, and high manufacturing costs are caused. there were.

The present invention has been made to solve the above-mentioned conventional problems, and has as its object to improve the reliability of a control device, improve the assemblability and the serviceability, and reduce the manufacturing cost.

[0018]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has an outer tub elastically suspended in a housing and has a rotation center axis in a substantially vertical direction for storing and passing laundry. The inner tub having pores is rotatably supported, and a rotating blade for stirring the laundry is provided at the inner bottom of the inner tub. The inner tub or the rotating blade is driven to rotate by a driving means, and the inner tub is rotated by a hot air blowing means. While supplying hot air to the outer tank and cooling the outer surface of the outer tank with cooling means,
The control means controls the operation of the driving means, the hot air blowing means, the cooling means, etc., via the load driving means, and controls each step of washing, rinsing, dehydrating, and drying, and has a load driving means and a control means. The control device is formed integrally and centrally, and is disposed substantially vertically on the rear surface of the housing.

Thus, the reliability of the control device can be improved, the assemblability and the serviceability can be improved, and the manufacturing cost can be reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that an outer tub elastically suspended in a housing, a rotation center axis is provided in a substantially vertical direction, and the outer tub is rotatable in the outer tub. An inner tub that supports and accommodates laundry and has a ventilation hole, a rotating wing provided at the inner bottom of the inner tub to agitate the laundry, a driving unit that rotationally drives the inner tub or the rotating wing, A hot air blowing means for supplying hot air to the air tank, a cooling means for cooling the outer surface of the outer tub, and a load driving means for controlling the operation of the driving means, the hot air blowing means, the cooling means, etc., for washing and rinsing. ,dehydration,
Control means for controlling each step of drying; and a control device having the load driving means and the control means. The control device is formed integrally and centrally, and is disposed substantially vertically on the rear surface of the housing. Since the control device is not dispersed in the lower part or upper part in the housing, the insulation does not deteriorate due to overflow in the waterproof pan, and the insulation does not deteriorate due to dew condensation due to moisture, especially Since the control device is disposed substantially vertically, even if water drops are attached, it can be flowed downward, preventing the insulation from being reduced due to water drops. Reliability, and the simplification of wiring can improve assemblability and service maintenance, and can reduce manufacturing costs.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a cover for covering and protecting the control device, wherein the cover is provided with a plurality of air hole louvers on the outer tank side. Yes, in the dehydration process, when the outer tub shakes with large amplitude, the air in the housing convection is used to obtain a respiratory action, and the ventilating action is provided to a plurality of air hole louvers provided on the outer tub side of the cover Works, the entire control device can be cooled, the temperature rise of the control device can be reduced, and the reliability can be improved. In addition, due to the ventilation function, even if water drops adhere, the evaporation function works,
The reliability of insulation is also improved.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a cover for covering and protecting the control device is provided, and the cover is integrally formed with a holder for locking to a housing. In the washing, dehydration, and drying processes, even if stress is applied to the control device due to vibration of the housing, the cover has an effect of absorbing the stress, so that the stress is not directly applied to the control device. Can be protected from vibration stress from the housing, and the reliability can be improved.

The invention described in claim 4 is the above-mentioned claim 1-
In the invention described in Item 3, a relay or the like that constitutes the load driving means is independently disposed at least in the cover, and is configured to be detachable, so that the arrangement for reducing the temperature rise is possible, and the reliability is improved. Performance can be improved. In addition, since the relay and the like are configured to be detachable, service maintenance of the relay and the like can be improved.

[0024]

An embodiment of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 1 and FIG.
0 is a motor (driving means) via the load driving means 31
8, the operation of the clutch 9, the drying air blower 15 and the heater 16 constituting the hot air blowing means, the drain valve 22, the cooling blower (cooling means) 25, the water supply valve 32, etc., is controlled,
Control means 33 for controlling each of the rinsing, dewatering and drying steps is provided.

The control means 33 comprises a microcomputer or the like, and includes a water level detecting means 34, temperature detecting means 35,
6 is input, the setting contents are displayed on the display means 38 based on the contents set by the input setting means 37, and the motor 8 is inputted via the load driving means 31 constituted by a bidirectional thyristor, a relay and the like. Control the operations of the clutch 9, the drying blower 15, the heater 16, the drain valve 22, the cooling blower 25, the water supply valve 32, etc. to wash, rinse,
Dehydration and drying processes are controlled. The operation setting section 39 is constituted by the input setting means 37 and the display means 38. In addition, 40 is a commercial power supply, and 41 is a power switch.

The temperature detecting means 35 is attached to the outlet of the heat exchanger 12 and detects the temperature of the circulating air. The temperature detecting means 36 is attached to the hot air supply passage 17 and detects the temperature of the circulating air at the hot air outlet 20. When the temperature detected by the temperature detecting means 36 reaches a first predetermined temperature (for example, 110 ° C.) during the drying process, the control means 33 controls the heater 16.
Is turned off, and when the temperature is lowered by a second predetermined temperature (for example, 2k) from the temperature detected by the temperature detecting means 35 at that time, the heater 15 is operated to adjust the temperature of the circulating air.

The control device 30 is formed integrally and centrally, is disposed substantially vertically on the back surface (back cover) 43 of the housing 42, and the cooling blower 25 is provided below the control device 30. . Further, as shown in FIG. 3, the control device 30 covers and protects with a cover 44, and the cover 44 is provided with a plurality of air hole louvers 45 on the outer tub 3 side.
As shown in FIG. 4, a holder 46 for locking with the housing 42 is integrally formed on the cover 44, and the holder 46 is fastened to the housing 42 with a screw 47 to attach the control device 30. I have.

Further, as shown in FIG.
The relay 48 constituting 1 is arranged independently at least in the cover 44, and is configured to be attachable and detachable with a screw 49.

The operation of the above configuration will be described. In addition,
The basic operation from washing to drying is the same as that of the conventional example, and the description is omitted.

Since the control devices 30 are integrally formed and arranged substantially vertically on the rear surface 43 of the housing 42, the plurality of control devices 30 are not dispersed in the lower portion or the upper portion of the housing 42. The insulation does not deteriorate due to water overflow in a waterproof pan (not shown), and the insulation does not deteriorate due to dew condensation due to moisture. In particular, since the control device 30 is disposed almost vertically, Even if there is water droplets or the like, the water can flow downward, thereby preventing insulation deterioration due to water droplets from occurring, and improving the reliability of the control device 30. Further, the simplification of wiring can improve the assemblability and the serviceability, and reduce the manufacturing cost.

Further, since the control device 30 is covered and protected by a cover 44, and the cover 44 is provided with a plurality of air hole louvers 45 on the outer tub side 3, the outer tub 3 can be removed during the dehydration process.
When the air fluctuates with a large amplitude, the air in the housing 42 flows by convection, so that a respiratory action is obtained as shown by the arrow in FIG.

By utilizing this respiratory action, a ventilation action acts on a plurality of air hole louvers 45 provided on the outer tub 3 side of the cover 44,
The entire control device 30 can be cooled.
Can be reduced, and the reliability can be improved. In addition, due to the ventilation function, even if water droplets are adhered, the evaporation function works, and the reliability of the insulating property is improved.

Further, since the cover 46 is formed integrally with the holder 46 for locking to the housing 42, even if stress is applied to the control device 30 by the vibration of the housing 42 during the washing, dehydration and drying processes. Since the cover 44 has a function of absorbing the stress, the stress is not directly applied to the control device 30, the protection against the vibration stress from the housing 42 of the control device 30 can be performed, and the reliability can be improved. it can.

Further, since the cooling blower 25 is provided below the control device 30 disposed substantially vertically on the rear surface 43 of the housing 42, the cooling blower 25 is operated during the drying process to remove external air. When cooling is performed to cool the outer tub 3 and the heat exchange duct 12, the control device 30 can also be cooled, the temperature rise of the control device 30 can be reduced, and the reliability can be improved.

Further, since the relay 48 constituting the load driving means 31 is provided independently at least in the cover 44 and is detachable by screws 49 or the like, the arrangement for reducing the temperature rise is provided. Becomes possible,
Reliability can be improved. In addition, since the relay or the like is configured to be detachable, service maintenance of the relay 48 and the like can be improved.

[0037]

As described above, according to the first aspect of the present invention, the outer tub resiliently suspended in the housing and the rotation center axis is provided in a substantially vertical direction. An inner tub that rotatably supports and accommodates laundry and has a ventilation hole, a rotating wing provided at the inner bottom of the inner tub to stir the laundry, and a driving unit that rotationally drives the inner tub or the rotating wing; Controlling the operation of the driving unit, the hot air blowing unit, the cooling unit, and the like via a hot air blowing unit that supplies hot air into the inner tank, a cooling unit that cools the outer surface of the outer tank, and a load driving unit Rinse, rinse,
Dehydration, control means for controlling each step of drying, and a control device having the load driving means and control means, the control device is formed integrally and is substantially perpendicular to the rear surface of the housing Since the control devices are not dispersed in the lower part or the upper part in the housing, the insulation is not deteriorated due to overflow in the waterproof pan, and the insulation is not deteriorated due to dew condensation due to moisture. Since the control device is disposed substantially vertically, even if water drops are attached, it can be flowed downward, preventing the insulation from being reduced due to water drops. Reliability, and the simplification of wiring can improve assemblability and service maintenance, and can reduce manufacturing costs.

According to the second aspect of the present invention, a cover for covering and protecting the control device is provided.
Since a plurality of air hole louvers are provided on the outer tub side, in the dehydration process, when the outer tub shakes with a large amplitude, the air inside the housing convects and the breathing action is obtained, and the outer tub side of the cover The ventilation function acts on the plurality of air hole louvers provided in the control device, so that the entire control device can be cooled, the temperature rise of the control device can be reduced, and the reliability can be improved. In addition, due to the ventilation function, even if water droplets are adhered, the evaporation function works, and the reliability of the insulating property is improved.

According to the third aspect of the present invention, there is provided a cover for covering and protecting the control device.
Since the holder that locks to the housing is integrally formed, even if stress is applied to the control device by the vibration of the housing during the washing, dehydration, and drying processes, the cover has the effect of absorbing the stress. Without applying stress, protection against vibration stress from the housing of the control device can be performed, and reliability can be improved.

According to the fourth aspect of the present invention, since the relay or the like constituting the load driving means is independently provided at least in the cover and is configured to be detachable, the temperature rise can be reduced. Can be arranged, and the reliability can be improved. In addition, since the relay and the like are configured to be detachable, service maintenance of the relay and the like can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a washing / drying machine according to an embodiment of the present invention.

FIG. 2 is a block circuit diagram of the washing and drying machine.

FIG. 3 is an enlarged sectional view of a main part of the washing and drying machine.

FIG. 4 is an enlarged perspective view of a main part of the washing and drying machine.

FIG. 5 is an exploded perspective view of a main part of the washing and drying machine.

FIG. 6 is a longitudinal sectional view of a conventional washing / drying machine.

[Explanation of symbols]

 Reference Signs List 3 outer tub 4 inner tub 6 rotating blade 8 motor (driving means) 15 drying blower (hot air blowing means) 16 heater (hot air blowing means) 25 cooling blower (cooling means) 30 control device 31 load driving means 33 control Means 42 Housing 43 Back part

Claims (4)

[Claims] 1. An outer tub elastically suspended in a housing, an inner tub having a rotation center axis in a substantially vertical direction, rotatably supported in the outer tub, accommodating laundry, and having a vent hole. A rotating blade provided on the inner bottom of the inner tub to stir the laundry; a driving unit for rotating the inner tub or the rotating blade; a hot air blowing unit for supplying hot air into the inner tub; Cooling means for cooling the outer surface of the tank, and the driving means through a load driving means, hot air blowing means, controlling the operation of the cooling means, washing, rinsing,
Dehydration, control means for controlling each step of drying, and a control device having the load driving means and control means, the control device is formed integrally and is substantially perpendicular to the rear surface of the housing Washing and drying machine arranged in. 2. A cover for covering and protecting the control device,
The washing / drying machine according to claim 1, wherein the cover has a plurality of air hole louvers on an outer tub side. 3. A cover for covering and protecting the control device,
The washer / dryer according to claim 1 or 2, wherein the cover is integrally formed with a holder that is engaged with a housing. 4. A relay or the like constituting a load driving means,
The washing / drying machine according to any one of claims 1 to 3, wherein the washing / drying machine is independently provided at least in the cover and is configured to be detachable.