JP4866821B2 - Dryer and washing dryer - Google Patents

Description

  The present invention relates to a dryer or a washing dryer provided with means for drying clothes.

  Drying clothes with a washing and drying machine that can perform washing to drying continuously creates high-temperature and low-humidity air with a blower fan and heat source, blows it into the washing tub, raises the temperature of the clothes, and moisture from the clothes By evaporating and evaporating the evaporated water. There are two methods for removing the evaporated water: an exhaust system that discharges it directly outside the washing and drying machine (always supplying new air) and a dehumidification system that cools the evaporated water and condenses it to remove the water (circulates the same air). However, for home use, a dehumidification system that does not allow moisture to enter the room where the washing and drying machine is installed is often used.

  The laundry dryer has (1) short drying time, (2) low power consumption, (3) good drying finish (low wrinkle of clothing), and (4) little damage to clothing. That is required. Among these, regarding (1) and (2), there is a washing and drying machine that efficiently performs drying by appropriately controlling the flow rate and temperature of air according to the progress of drying. In addition, there is a washing and drying machine that improves the movement of clothes in the washing tub and efficiently evaporates moisture from the clothes. Furthermore, there is a washing / drying machine that uses a water cooling system as a dehumidifying system to increase the efficiency of heat exchange with hot and humid hot air by allowing cooling water to flow uniformly over the wall surface of the air passage. Regarding (4), there is a washing and drying machine provided with a low temperature drying course in which the temperature of the warm air is limited so that the temperature of the clothes does not rise too much (the heater input is suppressed). Regarding (3), since wrinkles are generated when clothes are entangled or twisted during drying, there are washing dryers that are less likely to cause tangling or twisting of clothes.

JP 62-44299 A JP-A-9-774 JP-A-2005-080946 JP 2002-346272 A

  Depending on clothing, when drying with warm air while rotating the rotating drum in reverse, it shrinks or loses its shape due to the influence of mechanical force and temperature acting on the clothing. Sweaters in particular are prone to shrinkage and loss of shape, and a shelf drying course is provided so that such clothes can also be dried. The shelf drying course is a course in which a dedicated drying shelf is attached to the center of the rotating drum, clothes are folded and placed on the drying shelf, and drying is performed with less heater input without rotating the rotating drum. The clothes are not moved and the temperature of the warm air is low, so the clothes are not damaged. In a general washing and drying machine, since the hot air outlet is located at the upper or lower part of the front side of the rotating drum, the hot air mainly flows on the upper side or the lower side of the garment, so that it gradually dries from the clothing surface. For this reason, drying took time. Further, in the case of thick clothing, the back side may be finished dry, and it may be necessary to turn the clothing upside down and dry it again.

  An object of the present invention is to provide a dryer and a washing dryer having improved drying performance in a shelf drying course in which a drying operation is performed without rotating a drum.

In order to achieve the above object, the present invention is characterized by:
A rotating drum for storing clothes; a motor for driving the rotating drum; and a housing for supporting the rotating drum. A drying shelf is installed substantially horizontally in the center of the rotating drum. In a dryer / washer / dryer having a shelf drying course in which drying operation is performed with the air flow stopped, during the shelf drying course operation, a wind having an air volume and a wind speed that stretches the wrinkles of clothes contained in the rotating drum is blown. And a means for blowing the wind comprises a blowing means, a wind heating means provided on the discharge side of the blowing means, and a nozzle provided on the downstream side of the heating means, and the nozzle is rotated It is installed on the front side of the drum, and the nozzle faces the back surface of the rotating drum. A means for blowing air having an air volume and a wind speed to stretch the wrinkles of clothes housed in the rotating drum; and the means for blowing the air is air blowing means, air heating means provided on the discharge side of the air blowing means, And a nozzle provided on the downstream side of the heating means, the nozzle is installed on the front side of the rotating drum, the air emitted from the nozzle is reflected against the back surface of the rotating drum, Spray on top and bottom of drying shelf.

  The dryer and the washing dryer configured as described above can reflect the air emitted from the nozzle against the back surface of the rotary drum and then spray the air on the upper and lower surfaces of the drying shelf. Thus, according to the present invention, the wind can be applied from above and below the clothing, so that the drying time can be shortened.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external view of a drum type washing / drying machine according to an embodiment of the present invention. FIG. 2 is a perspective view showing a part of the casing cut off to show the internal structure, FIG. 3 is a rear view with the back cover removed to show the internal structure, and FIG. 4 shows the internal structure. FIG. 5 is a side view, and FIG. 5 is a plan view showing a part of the housing cut away to show the internal structure.

  Reference numeral 1 denotes a housing constituting the outer shell. The housing 1 is mounted on a base 1h, and includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are joined by a U-shaped upper reinforcing material (not shown), a front reinforcing material (not shown), and a rear reinforcing material (not shown). A box-shaped housing 1 is formed and has sufficient strength as a housing.

  9 is a door which closes the insertion port for putting in and taking out the clothes provided in the approximate center of the front cover 1c, and is supported by the hinge provided in the front reinforcement material so that opening and closing is possible. When the door opening button 9d is pressed, the lock mechanism (not shown) is released to open the door, and when the door is pressed against the front cover 1c, the door is locked and closed. The front reinforcing member has a circular opening for putting clothes in and out concentrically with an opening of the outer tub described later.

  Reference numeral 6 denotes an operation panel provided in the upper center of the housing 1 and includes a power switch 39, operation switches 12 and 13, and a display 14. The operation panel 6 is electrically connected to a control device 38 provided at the lower part of the housing 1.

  3 is a cylindrical washing and dewatering tub (rotary drum) supported rotatably, having a large number of through holes for water flow and ventilation on the outer peripheral surface 3e and the back surface 3d, and clothing on the front end surface Is provided with an opening 3a. A fluid balancer 3c integrated with the washing and dewatering tub 3 is provided outside the opening 3a. A plurality of lifters 3b extending in the axial direction are provided inside the outer peripheral surface 3e. When the washing and dewatering tub 3 is rotated during washing and drying, the clothes are lifted along the outer peripheral surface 3e by the lifter 3b and centrifugal force, and gravity Repeat the movement as if falling. The rotation center axis of the washing and dewatering tub 3 is inclined so that the horizontal or opening 3a side becomes higher.

  Reference numeral 2 denotes a cylindrical outer tub, which coaxially encloses the washing / dehydrating tub 3, opens on the front surface, and attaches the motor 4 to the outer center of the rear end surface. The rotating shaft of the motor 4 passes through the outer tub 2 and is connected to the washing and dewatering tub 3. An outer tub cover 2d is provided at the opening on the front surface, and water can be stored in the outer tub. In the center of the front side of the outer tub cover 2d, there is an opening 2c for taking in and out clothing. The opening provided in the main opening 2c and the front reinforcing member 37 is connected by a rubber bellows 10, and the outer tub 2 is sealed with water by closing the door 9. A drain port 2b is provided at the bottom bottom of the outer tub 2 and a drain hose 26 is connected thereto. A drain valve (not shown) is provided in the middle of the drain hose 26. Water is stored in the outer tank 2 by closing the drain valve and supplying water, and the drain valve is opened to drain the water in the outer tank 2 outside the machine. To discharge.

  The outer tub 2 is supported in a vibration-proof manner by a suspension 5 (consisting of a coil spring and a damper) whose lower side is fixed to the base 1h. The upper side of the outer tub 2 is supported by an auxiliary spring (not shown) attached to the upper reinforcing member, and prevents the outer tub 2 from falling in the front-rear direction.

  Reference numeral 19 denotes a detergent container provided on the upper left side in the housing 1, and a drawer-type detergent tray 7 is mounted from the front opening. When putting detergents, the detergent tray 7 is pulled out as shown by a two-dot chain line in FIG. The detergent container 19 is fixed to the upper reinforcing material of the housing 1.

  On the rear side of the detergent container 19, components related to water supply such as a water supply electromagnetic valve 16, a bath water supply pump 17, a water level sensor (not shown) are provided. The top cover 1e is provided with a water supply hose connection port 16a from a water tap and a water absorption hose connection port 17a for remaining hot water in the bath. The detergent container 19 is connected to the outer tub 2 and supplies washing water to the outer tub 2 by opening the water supply electromagnetic valve 16 or operating the bath water supply pump 17.

  Reference numeral 29 denotes a drying duct installed vertically inside the back surface of the housing 1, and a lower portion of the duct is connected to an intake port 2 a provided below the back surface of the outer tub 2 by a rubber bellows tube B 29 a. A water-cooled dehumidifying mechanism (not shown) is built in the drying duct 29, and cooling water is supplied from the water supply electromagnetic valve 16 to the water-cooled dehumidifying mechanism. The cooling water flows down along the wall surface of the drying duct 29, enters the outer tub 2 through the intake port 2a, and is discharged from the drain port 2b.

  The upper part of the drying duct 29 is connected to a filter duct 27 installed in the front-rear direction on the upper right side in the housing 1. The filter duct 27 has an opening on the front surface, and a drawer-type drying filter 8 is inserted into the opening. The air that has entered the filter duct 27 from the drying duct 29 flows into the mesh filter 8a of the drying filter 8, and lint is removed. Cleaning of the dry filter 8 is performed by pulling out the dry filter 8 and taking out the mesh filter 8a. In addition, an opening is provided on the lower surface of the insertion portion of the filter 9 in the filter duct 27, and the opening is connected to the intake duct 33, and the other end of the intake duct 33 is connected to the intake port of the blower unit 28. is doing.

  The blower unit 28 includes a drive motor 28a, a fan impeller (not shown, made of aluminum alloy), and a fan case 28b. The fan case 28b incorporates a heater 31 and heats air sent from the fan impeller. The discharge port of the blower unit 28 is connected to the hot air duct 30. The hot air duct 30 is connected to a hot air outlet 32 provided in the outer tank cover 2d through a rubber bellows tube A30a and a bellows tube joint 30b. In the present embodiment, since the blower unit 28 is provided on the upper right side in the housing 1, the hot air outlet 32 is provided at a position diagonally above and to the right of the outer tank cover 2d, and the distance to the hot air outlet 32 is set. I try to keep it as short as possible.

  Temperature sensors (not shown) are provided at the outlet 2b and the inlet and outlet of the blower unit 28.

  An object of the present invention is to reduce shrinkage of clothes, drying time, and uneven drying in a shelf drying course in which drying is performed without rotating a washing and dewatering tub. For this purpose, a blower unit 28 that generates high-speed air and a hot air outlet 32 that applies this air to the back of the washing and dewatering tank are required. Details of the hot air outlet 32 will be described with reference to FIGS. 6 is a front view of the outer tub cover 2d of the hot air outlet 28 installation portion, and FIG. 7 is a cross-sectional view of the hot air outlet 32 cut along a two-dot chain line AA in FIG.

  The hot air outlet 32 is provided along the opening 2c from the front side of the outer tub cover 2d, and flow paths 32b and 32c are formed therein. A bellows pipe joint 30b is attached to the inlet of the hot air outlet 32, and a nozzle 32d is formed at the outlet of the flow path 32c. The inner diameter of the opening 2c of the outer tub cover 2d and the inner diameter of the opening 3a of the washing / dehydration tub 3 are set to be substantially the same so that clothing does not enter between the gap between the washing / dehydration tub 3 and the outer tub cover 2d. Yes. For this reason, the outlet 32a of the hot air outlet 32 is formed so as to protrude inward from the inner peripheral surface of the opening 2c, and the nozzle 32d is opened toward the back in the washing and dewatering tub 3. The positional relationship between the position of the nozzle 32d and the air inlet 2a connected to the drying duct 29 is provided at a substantially diagonal position. In the present embodiment, the nozzle 32d is provided at a position obliquely above and to the right of the outer tank cover 2d, and the air inlet 2a is provided at the bottom of the rear surface of the outer tank 2. This is because the warm air blown out from the nozzle 32d is exhausted after being brought into contact with the clothing for the longest time.

  In the shelf drying course, as shown in FIG. 8, a dedicated drying shelf 60 is attached in the washing and dewatering tub 3, clothes are placed on the drying shelf, and the laundry and dewatering tub 3 is not rotated (the clothes are moved). This is a drying course in which the drying operation is performed. The drying shelf 60 is fixed to a hole 3f provided at the center of the back surface 3d of the washing and dewatering tub 3 and the front side is placed on the inner peripheral surface of the opening 2c of the outer tub cover 2d so that the drying shelf 60 is substantially horizontal. In the state, it is installed slightly below the center in the washing and dewatering tub 3. A clothing 61 such as a sweater is placed on the drying shelf 60 while being shaped and folded, and the shelf drying course is executed.

The flow of wind during the drying operation will be described with reference to FIGS. When the blower unit 28 is operated and the heater 31 is energized, high-speed hot air is blown into the washing and dewatering tub 3 from the nozzle 32d (arrow 41). The hot air 41 hits the upper side of the back surface 3d of the washing / dehydrating tub 3 and bounces and flows on the upper side of the drying shelf 60 (arrow 41a). And a flow (arrow 41b) that is reflected by the inner peripheral surface 3e and flows below the drying shelf 60. The warm air indicated by the arrow 41a hits the surface of the clothing, and the warm air indicated by the arrow 41b hits the back surface of the clothing. Therefore, the surface of the garment, can supply sufficient hot air on the back, effectively water evaporates from the garment. In addition, since the high-speed warm air 41 is not directly applied to the clothing 61 but the warm air that has been reflected and diffused by the wall surface of the washing and dehydrating tub 3 to reduce the speed hits the clothing 61, the clothing may lose its shape due to the momentum of the wind. Absent.

  Such a wind flow does not occur when the wind speed is low, and warm air mainly flows through the upper space 60b of the drying shelf 60, and the amount of warm air flowing through the lower space 60a is small. Without drying, it takes a long time to dry or uneven drying occurs.

  The air containing moisture flows from the through hole provided in the washing and dewatering tub 3 to the outer tub 2, is sucked into the drying duct 29 from the air inlet 2a, and flows through the drying duct 29 from the bottom to the top (arrow 42). Cooling water from the water cooling and dehumidifying mechanism flows down on the wall surface of the drying duct 29, and the hot and humid air is cooled and dehumidified by contacting with the cooling water, and becomes dry low temperature air and enters the filter duct 27 (arrow 43). . The lint is removed through the mesh filter 8a provided in the filter duct 27, enters the intake duct 33, and is sucked into the blower unit 28 (arrow 44). And it circulates so that it may blow in the washing and dehydration tank 3 again.

  The temperature of the hot air is detected by a temperature sensor provided at the discharge port of the blower unit 28, and the heater 31 is set in a weak mode and is repeatedly turned on and off to be controlled from 50 to 60 ° C., and shrinkage due to temperature. Is prevented. Alternatively, only the blower unit 28 may be operated without energizing the heater 31 (with the heating means set to OFF). In this embodiment, the blower unit 28 is rotated at a high speed, and a part of the heat generated by the drive motor 28a is transmitted to the aluminum alloy fan impeller through the shaft of the drive motor 28a and radiated into the circulating air. . Further, the air temperature rises due to the compression work of the fan impeller. For this reason, even when only the blower unit 28 is operated, the temperature of the circulating air can be about 40 to 50 ° C., and it is dried at a lower temperature than the above. Therefore, for clothing very sensitive to temperature, Shrinkage can be further reduced. Further, since the heater 31 is not used, there is an effect that the power consumption can be reduced.

In the present embodiment, the blower unit 28 has a fan impeller diameter of 140 mm, a blade thickness of 8.1 mm, and the nozzle 32d is 56 × 5 mm. In the shelf drying course, the rotational speed is 13000 rpm, the air volume is about 1.4 m ³ / min, and the wind speed is about 80 m / s.

  FIG. 11 is a block diagram of the control device 38 of the washing / drying machine. A microcomputer 50 is connected to the operation button input circuit 51, the water level sensor 34, and the temperature sensor 52 connected to the switches 12, 13, 13a, and various information signals in the user's button operation, washing process, and drying process. Receive. An output from the microcomputer 50 is connected to a drive circuit 54 and connected to a water supply electromagnetic valve 16, a drain valve 25, a motor 4, a blower fan 28, a heater 31, and the like, and controls opening / closing, rotation, and energization thereof. Further, it is connected to a 7-segment light emitting diode display 14, a light emitting diode 56 and a buzzer 57 for notifying the user of the operating state of the washing machine.

  The microcomputer 50 is activated when the power switch 39 is pressed and the power is turned on, and executes a basic control processing program for washing and drying as shown in FIG. An example of executing the shelf drying course program is shown below.

Step S101
Check the status of the washer / dryer and make initial settings. When the shelf drying course is performed, the drying shelf 60 is installed in the washing and dehydrating tub 3 at this point, and the clothes that are folded and arranged are placed here.

Step S102
The indicator 14 of the operation panel 6 is turned on, and a washing / drying course is set according to an instruction input from the operation button switch 13. An instruction is input with the operation button switch 13a so as to perform the shelf drying course.
Step S103
The process branches after monitoring the instruction input from the start switch 12 of the operation panel 6.

Step S104
If the set course is a shelf drying course, the process branches.

Step S105
Perform shelf drying operation. The blower unit 28 is operated while the washing and dewatering tub 3 is stopped. At the same time, the heater 31 is set to the weak mode and ON-OFF is repeated. ON-OFF repeats at intervals of about 2 minutes. By carrying out like this, the temperature of a warm air will be 50-60 degreeC. Alternatively, only the blower unit 28 may be operated with the heater 31 turned off. In this case, it becomes a warm air of 40-50 degreeC.

Step S106
When the specified time has elapsed, the buzzer 57 notifies the end of drying and ends the operation.

Step S107
When a washing course, a washing / drying course, and a drying course other than the shelf drying course are set, the respective operations are executed, but detailed description thereof is omitted.

It is an external view which shows the drum type washing-drying machine of this invention. It is a perspective view which cut | disconnects a part of housing | casing of the drum type washing machine of this invention, and shows an internal structure. It is a rear view which removes the back cover of the drum type washing machine of the present invention, and shows an internal structure. It is a side view which shows the internal structure of the drum type washing machine of this invention. It is a top view which cut | disconnects the upper part of the housing | casing of the drum type washing machine of this invention, and shows an internal structure. It is a front view of the outer tank cover which provided the warm air blowing outlet. It is AA sectional drawing of the warm air blower outlet in FIG. It is a front view of the state which installed the exclusive drying shelf. It is the schematic diagram (front view) which showed the flow of the high-speed wind blown out from the nozzle. It is the schematic diagram (cross-sectional view) which showed the flow of the high-speed wind blown out from the nozzle. It is a block diagram of the control system of the washing and drying machine shown in FIG. It is a flowchart which shows a part of control process which the microcomputer in the controller of the control system shown in FIG. 6 performs.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Outer tub 2a Intake port 2d Outer tub cover 3 Washing / dehydration tub 4, 28a Motor 6 Operation panel 8 Drying filter 9 Door 16 Water supply solenoid valve 27 Filter duct 28 Blower unit 28b Fan case 29 Drying duct 31 Heater 32 Temperature Air outlet 32d Nozzle 33 Intake duct 38 Control device 60 Drying shelf 61 Clothes

Claims (8)

A rotating drum for storing clothes; a motor for driving the rotating drum; and a housing for supporting the rotating drum. A drying shelf is installed substantially horizontally in the center of the rotating drum. In a dryer having a shelf drying course in which drying operation is performed while stopping
During the shelf drying course operation, the means for blowing air having the air volume and wind velocity extend the wrinkles of the clothes that the accommodated in rotary drum provided, means to blow the wind, blowing means, pressurizing heat means, Oyo constituted by a fine Bruno nozzle, installed to the nozzle on the front side of the rotary drum, after reflection against the air from the nozzle to the rear surface of the rotary drum, blown to the upper surface and the lower surface of the drying cabinet dryer, wherein the wear. A rotating drum for storing clothes; a motor for driving the rotating drum; and a housing for supporting the rotating drum. A drying shelf is installed substantially horizontally in the center of the rotating drum. In a dryer having a shelf drying course in which drying operation is performed while stopping
During the shelf drying course operation, there is provided means for blowing air having an air volume and a wind speed that stretches the wrinkles of the clothes accommodated in the rotating drum, and the means for blowing the air is air blowing means, and a discharge side of the air blowing means And a nozzle provided on the downstream side of the heating means, the nozzle is installed on the front side of the rotating drum, and the air discharged from the nozzle is placed on the back surface of the rotating drum. After being applied and reflected, the dryer is sprayed on the upper and lower surfaces of the drying shelf.   3. A dryer according to claim 1, wherein the heating means is repeatedly turned on and off.   3. A dryer according to claim 1, further comprising means for setting the heating means to OFF. A rotating drum for storing clothes; a motor for driving the rotating drum; and a housing for supporting the rotating drum. A drying shelf is installed substantially horizontally in the center of the rotating drum. In a washing and drying machine having a shelf drying course that performs drying operation while stopping
During the shelf drying course operation, the means for blowing air having the air volume and wind velocity extend the wrinkles of the clothes that the accommodated in rotary drum provided, means to blow the wind, blowing means, pressurizing heat means, Oyo constituted by a fine Bruno nozzle, installed to the nozzle on the front side of the rotary drum, after reflection against the air from the nozzle to the rear surface of the rotary drum, blown to the upper surface and the lower surface of the drying cabinet A washing and drying machine characterized by being attached . A rotating drum for storing clothes; a motor for driving the rotating drum; and a housing for supporting the rotating drum. A drying shelf is installed substantially horizontally in the center of the rotating drum. In a washing and drying machine having a shelf drying course that performs drying operation while stopping
During the shelf drying course operation, there is provided means for blowing air having an air volume and a wind speed that stretches the wrinkles of the clothes accommodated in the rotating drum, and the means for blowing the air is air blowing means, and a discharge side of the air blowing means And a nozzle provided on the downstream side of the heating means, the nozzle is installed on the front side of the rotating drum, and the air discharged from the nozzle is placed on the back surface of the rotating drum. After being applied and reflected, the washing dryer is sprayed onto the upper and lower surfaces of the drying shelf.   The washing / drying machine according to claim 5 or 6, wherein the heating means is repeatedly turned on and off.   The washing / drying machine according to claim 5 or 6, further comprising means for setting the heating means to OFF.

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