JP2010184005A - Drum type washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing and drying machine having drying performance to reduce drying nonuniformity or over-drying. <P>SOLUTION: The drum type washing and drying machine includes: a rotary drum 3 rotatably arranged inside a water tub 2; an air intake duct 9 arranged above the water tub 2; a heating and dehumidifying means 11 and a blowing fan 10 for heating and dehumidifying blown air; and a warm air blowing outlet 7 communicating with the blowing fan 10; a rotary angle detecting means 6 for detecting the rotary angle of the rotary drum 3; and a control means 12 for making the rotary angle detecting means 6 restrict and stop the rotary drum 3 at a prescribed position. In a drying step, the control means 12 stops the rotary drum 3 by a prescribed cycle, and makes the rotary angle detecting means 6 rotate the rotary drum 3 till the lowest point of the stopped rotary drum comes to be positioned at the warm air blowing outlet 7 and restrict and stop the rotary drum for a prescribed time. Clothing with drying nonuniformity is moved to the front part of the warm air blowing outlet 7, so as to be dried. Thus, the drying nonuniformity and over-drying are eliminated, thereby providing the highly reliable drum type washing and drying machine. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drum type washing / drying machine having a drying function.

  Conventionally, the movement of the rotating drum in the drying process of the drum type washing and drying machine is controlled according to a predetermined algorithm set in advance, regardless of the degree of drying of each of the plurality of clothes (for example, see Patent Document 1).

FIG. 5 shows a configuration of a conventional washing and drying machine described in Patent Document 1. In FIG. As shown in FIG. 5, a bottomed cylindrical rotary drum 102 in which a large number of drain holes 101 are formed on the outer peripheral wall is rotatably disposed in a water tank 103. When the drying process is started after the washing, rinsing, and dehydration processes, the humid air inside the rotating drum 102 is sucked from the intake duct 104 formed above the water tank 102 and is heated and dried by the blower fan 105 by the heater 106. Is blown into the water tank 103 and the rotating drum 102 from the hot air outlet 107 on the side of the water tank to dry the clothes inside.
JP 2004-344373 A

  However, in the conventional configuration, when the garment has a high capacity in the control of the rotary drum in the drying process, the garment is entangled between the garments, especially in the rotary drum at the end of the drying, and the clothes are swollen due to drying. The agitation is not sufficiently performed, and the warm air is blocked by dry clothing, so that the phenomenon that the warm air is not sufficiently exposed to clothing that is still wet may occur, resulting in undried.

  Furthermore, the hot air outlet has a constitutional restriction that it must be provided in the upper part of the aquarium as much as possible due to the intrusion into the drying path such as washing water and foam during washing. On the contrary, light clothing that is already dry is located above and continues to be exposed to warm air, so that there is a problem that clothing is damaged by overdrying.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a highly reliable drum-type washing and drying machine that eliminates uneven drying and overdrying and efficiently drys clothes.

  In order to solve the conventional problems, a water tank housed in an outer box, a rotating drum rotatably provided in the water tank, an intake duct formed above the water tank, and heating communicated with the intake duct A dehumidifying means and a blowing means; a hot air outlet that communicates with the blowing means and is provided in the rear upper part of the water tank and directed inward of the rotating drum; and a rotation angle detecting means that detects a rotation angle of the rotating drum; The vibration detection means for detecting the amplitude amount of the water tank, and a control means for executing a series of drying steps and stopping the rotary drum at a predetermined position by the rotation angle detection means, the control means, In the drying process, the rotating drum is stopped at a predetermined cycle, and the lowest point of the rotating drum at the time of stopping is moved to the hot air outlet by the rotation angle detecting means. And rotating the rotary drum until the location, and is obtained by controlling to restrain stopped for a predetermined time.

As a result, dry clothes are moved to the front of the hot air outlet and dried, thus eliminating dry unevenness and overdrying, and providing a highly reliable drum-type washing and drying machine that can dry clothes efficiently. Can do.

  The drum type laundry dryer of the present invention can provide a highly reliable drum type laundry dryer without uneven drying.

  The first invention includes a water tank housed in an outer box, a rotating drum rotatably provided in the water tank, an intake duct configured above the water tank, a heating and dehumidifying means communicating with the intake duct, and an air blower Means, a hot air outlet provided in the rear upper part of the water tank in communication with the air blowing means and directed inward of the rotating drum, a rotation angle detecting means for detecting a rotation angle of the rotating drum, and an amplitude of the water tank Vibration detecting means for detecting the amount, and a control means for executing a series of drying strokes and stopping the rotating drum at a predetermined position by the rotation angle detecting means, the control means in the drying stroke, The rotating drum is stopped at a predetermined cycle, and the rotation angle detecting means rotates the rotating drum until the lowest point of the rotating drum at the time of stopping is positioned at the hot air outlet. Reliable drum-type washing and drying machine that can selectively expose hot air to dryness and efficiently dry clothes by controlling the drum to rotate and stop for a predetermined time. Can be provided.

  In the second invention, in particular, the control means of the first invention moves the lowest point of the rotating drum to the hot air outlet when the rotating drum is stopped according to the amplitude of the water tank detected by the vibration detecting means. As a result of performing control to change the restraint stop time of the rotating drum after the operation, the drying time is changed so as to become longer when the amplitude of the water tank is large and the drying unevenness is large. The lack of drying of Kimura's clothing can be resolved.

  In the third aspect of the invention, in particular, the control means of the first or second aspect of the invention moves the lowest point of the rotating drum to the hot air outlet by the rotation angle detecting means, and then moves the center of the hot air outlet. By controlling the rotary drum to swing at an angle of about 45 degrees or less in the center, a gap is created between clothes and the contact area between hot air and dry unevenness is increased, thereby increasing the drying efficiency. Can do.

  Hereinafter, embodiments 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. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of a drum type washing / drying machine according to the first embodiment of the present invention, and FIG. 2 is an operation diagram of the drum type washing / drying machine.

  In FIG. 1, a water tank 2 housed swingably by a vibration-proof spring 13 from above and a damping damper 14 from below is disposed in an outer box 1 of a drum type washing and drying machine, and a rotating drum is placed in the water tank 2. 3 is rotatably supported.

  The rotating drum 3 is rotationally driven via a drive shaft 4 by a motor 5 fixed to the outside of the water tank 2, and is detected by a rotation angle detecting means 6 of the rotating drum 3 such as a hall element attached to the driving motor 5. The rotational speed is detected and the data is input to the control means 12, and the control means 12 restrains and stops the rotary drum 3 at a predetermined position based on the data obtained by the rotational angle detection means 6.

  In addition, when a drying process is started after a process such as washing, rinsing, dehydration, etc., the air containing water inside the rotating drum 3 is sucked from the intake duct 9 formed above the water tank 2 and is a heat pump as a heating and dehumidifying means. 11 and the blower fan 10 are heated and dehumidified, and the clothes inside the rotating drum are fed by a drying path through which the dry hot air is sent into the rotating drum 3 from the hot air outlet 7 provided so as to communicate with the rear upper part of the water tank 2. A series of drying steps are performed.

  In the final stage of the drying process, the clothes in the rotating drum 3 swell up when it dries, and a sufficient space for stirring cannot be secured in the rotating drum 3. Is delayed and becomes dry unevenness 15. In order to eliminate such dry unevenness 15, the following control shown in FIG. 2 is executed.

  FIG. 2 is a front view of the state of clothing in the rotary drum 3 in the final stage of drying, and FIG. 2 (a) shows the state when the rotary drum 3 is naturally stopped. The heavy clothing that becomes the unevenness 15 works as a moment of inertia and tends to stop by rotating the rotating drum 3 to its lowest point due to its own weight.

  Next, FIG. 2B shows the rotation drum 3 rotated until the rotation angle detection means 6 shown in FIG. 1 detects the angle θ from the lowest point of the rotation drum 3 to the position of the hot air outlet 7. FIG. 6 is a diagram showing a state in which the restraint is stopped, and shows a state in which the drying unevenness 15 is moved to the vicinity of the front of the hot air blowing port 7, whereby the hot air from the hot air blowing port 7 is concentrated on the drying unevenness 15. Can be exposed to the first predetermined restraint stop time to efficiently promote drying.

(Embodiment 2)
FIG. 3 is an operation diagram of the drum-type washer / dryer according to the second embodiment of the present invention.

  FIG. 3 shows a state in which the rotary drum 3 is rotated at a rotation speed (for example, 80 rpm) at which the clothes are attached to the inner wall of the drum 3 in the drying process.

  Since the drying unevenness 15 in the final stage of drying contains a larger amount of moisture than other clothing, it becomes unbalanced when the rotating drum 3 rotates, and vibrates the water tank 2 elastically supported by the vibration-proof spring 13 and the damper 14 so as to be swingable. Let

  When the dry unevenness 15 is large, that is, when the dry unevenness 15 is heavy, the amount of unbalance increases, and thus the amplitude amount H of the water tank 2 also increases. The amplitude amount H of the water tank 2 generated at this time is measured by the vibration detection 16, and the restraint stop time of the rotary drum 3 at the position of the hot air outlet 7 is changed according to the magnitude of the amplitude amount H. For example, when the amplitude H is large, it is determined that the dry unevenness 15 is large, and is set longer than the first predetermined restraint stop time of the dry unevenness 15 at the position of the hot air outlet 7 in the first embodiment. It is. In this way, by changing the setting of the drying time, the lack of drying of uneven clothes is solved.

(Embodiment 3)
FIG. 4 is an operation diagram of the drum type washer / dryer according to the third embodiment of the present invention.

  In FIG. 4, in the first embodiment, when the drying unevenness 15 is restrained and stopped in the vicinity of the position of the hot air outlet 7, the rotary drum 3 is rotated by a predetermined angle Δ around the center of the hot air outlet. Accordingly, the gap K is formed between the clothes and the contact area between the warm air and the dry unevenness 15 is widened, so that the hot air can be effectively exposed to the dry unevenness 15.

  As described above, the drum-type washing and drying machine according to the present invention can efficiently reduce uneven drying and overdrying, and can improve energy saving and reliability, and thus has high drying performance. It is useful as a drum type washing and drying machine.

The block diagram of the drum type washing-drying machine in Embodiment 1 of this invention (A) State diagram when the rotating drum of the drum type washing and drying machine is naturally stopped (b) State diagram when the rotating drum is rotated and restrained and stopped Operational diagram of drum type washer / dryer in Embodiment 2 of the present invention Operational diagram of drum type washer / dryer in Embodiment 3 of the present invention Configuration diagram of a conventional washing and drying machine

DESCRIPTION OF SYMBOLS 1 Outer box 2 Water tank 3 Rotating drum 5 Motor 6 Rotation angle detection means 7 Warm air outlet 9 Intake duct 10 Blower fan 11 Heating dehumidification means (heat pump)
12 Control means 15 Drying unevenness 16 Vibration detection means

Claims (3)

A water tank housed in an outer box, a rotating drum rotatably provided in the water tank, an intake duct configured above the water tank, a heating dehumidifying means and a blowing means communicating with the intake duct, and the blowing means A hot air outlet that is provided in the rear upper part of the water tank and is directed to the inside of the rotating drum, a rotation angle detecting means that detects a rotation angle of the rotating drum, and a vibration detection that detects the amplitude amount of the water tank Means and a control means for executing a series of drying strokes and stopping the rotating drum at a predetermined position by the rotation angle detecting means. Stops in a cycle, and rotates the rotating drum until the lowest point of the rotating drum at the time of the stop is positioned at the hot air outlet by the rotation angle detecting means And control the drum type washing and drying machine to restrain stopped for a predetermined time. The control means determines the restraint stop time of the rotating drum after moving the lowest point of the rotating drum to the hot air outlet when the rotating drum is stopped according to the amplitude of the water tank detected by the vibration detecting means. The drum-type washing and drying machine according to claim 1, wherein the drum-type washing and drying machine is controlled to be changed. The control means moves the lowest point of the rotating drum to the hot air outlet by the rotation angle detecting means, and then swings the rotating drum at an angle of about 45 degrees or less around the center of the hot air outlet. The drum type washing and drying machine according to claim 1 or 2, which is controlled.