JP2017018536A - Drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drying machine capable of solving and suppressing entanglement of clothing, while improving drying efficiency.SOLUTION: A drying machine of the embodiment includes: a rotary tub and driving means for rotationally driving the same; a supply port for supplying air to the rotary tub; a circulation path having an exhaust port for exhausting air; circulation means for circulating air in the circulation path; a rotation sensor for detecting the rotational frequency of the rotary tub; and an entanglement detection part for detecting entanglement of clothing. A line (first virtual line) for connecting a rotational axis of the rotary tub and the supply port and a line (second virtual line) for connecting the rotational axis and the exhaust port are set, and out of two rotation directions for rotating the first virtual line to the second virtual line around the rotational axis, the rotation direction whose rotation angle is small is defined as a first direction, and the rotation direction whose rotation angle is large is defined as a second direction. In normal control, control is performed in which a ratio of the second direction rotation is larger than the first direction rotation, and in the case where the entanglement is detected by the entanglement detection part, control is performed in which the ratio of the rotation of the first direction and the second direction is changed.SELECTED DRAWING: Figure 5

Description

  Embodiments of the present invention relate to a dryer.

  2. Description of the Related Art Conventionally, there is known a dryer in which clothes and the like are stored in a rotating tank (drum) that is driven to rotate, and the clothes and the like are dried by circulating drying air while rotating the rotating tank. Such a dryer may be used alone as a dryer, or may be used in a state of being incorporated in a washing machine like a so-called drum-type laundry dryer (see, for example, Patent Document 1). .

Japanese Patent No. 4812719

  Such a dryer is required to dry clothes or the like with low power consumption, that is, to improve drying efficiency. On the other hand, it is also required to suppress the generation of wrinkles due to tangling of clothing.

  Then, it aims at providing the dryer which can eliminate and suppress the tangle of clothing and improve the finished state while improving the drying efficiency.

  The dryer according to the embodiment includes a rotating tank disposed in a casing, a driving unit that rotationally drives the rotating tank, a supply port that supplies air to the rotating tank side, and an exhaust that exhausts air from the rotating tank side. A circulation path having a mouth, circulation means for circulating air through the circulation path, a rotation sensor for detecting the number of rotations of the rotating tub, and an entanglement detecting unit for detecting an entanglement of clothes in the rotating tub. . When the air is circulated by the circulation means, a first imaginary line that is a virtual line connecting the rotation axis of the rotary tank and the supply port in a state viewed from the rotation axis direction of the rotary tank, and the rotation axis And a second virtual line that is a virtual line connecting the exhaust port and two rotation directions assumed when the first virtual line is rotated about the rotation axis to the second virtual line Of these, when the rotation direction on the side with the smaller rotation angle is the first direction and the rotation direction on the side with the larger rotation angle is the second direction, in normal control, the rotation in the second direction rather than the rotation in the first direction When the entanglement detector detects the entanglement, the control is performed to change the ratio between the rotation of the rotating tank in the first direction and the rotation in the second direction. It is characterized by.

It is a figure which shows typically the structure of the washing-drying machine which concerns on 1st Embodiment, (A) is a vertical side view, (B) is a figure which shows typically the rotation tank seen from the rotating shaft direction. It is a figure which shows typically the flow of the air in a rotation tank, (A) is a figure which shows the positional relationship of the supply port seen from the rotating shaft direction of the rotation tank, and an exhaust port, (B) is from the side surface of a rotation tank. The figure which shows the flow of the air at the time of seeing, (C) is the figure which shows the flow of the air at the time of seeing from the front of a rotation tank The block diagram which shows typically the structure of the washing-drying machine which concerns on 1st Embodiment. The flowchart which shows the process in the washing / drying machine which concerns on 1st Embodiment. (A)-(E) are the figures which showed typically the control pattern of the rotary tank which concerns on 1st Embodiment. (A) is a figure which shows the mode of the clothing in a rotation tank when there is no clothing tangle, (B) is the figure which shows the state of the clothing in a rotation tank when there is a clothing tangle (A) is a graph showing an example of detection of clothing entanglement by an acceleration sensor, (B) is a graph showing an example of detection of clothing entanglement by a drum ammeter. It is a figure which shows typically the positional relationship of the supply port and exhaust port in 2nd Embodiment, (A) is a specific example 1, (B) is a figure which shows the specific example 2. FIG. Longitudinal side view schematically showing the configuration of the dryer of Example 3 in the second embodiment The figure which shows typically the positional relationship of the supply port and exhaust port of the example 4 in 2nd Embodiment. The figure which shows typically the positional relationship of the supply port and exhaust port of the example 5 in 2nd Embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In the description of the embodiments, parts that are substantially common are denoted by the same reference numerals, and detailed description thereof is omitted.
(First embodiment)
Hereinafter, the dryer according to the first embodiment will be described with reference to FIGS. 1 and 2. In the present embodiment, a so-called drum type laundry dryer will be described as an example of the dryer.

  As shown in FIG. 1 (A), a washing / drying machine 1 has a bottomed cylindrical water tank 3 having an opening on the right side in the drawing, that is, the front side of the washing / drying machine 1, and a housing 2 constituting the outer shell. A rotating tank 4 is provided. The rotating tub 4 is rotationally driven around the rotating shaft Lc by a motor 5 as a driving means while being accommodated in the water tub 3. In the case of the present embodiment, the rotation axis Lc is an inclined type inclined from the installation surface.

  The washing / drying machine 1 has a selection course such as a washing operation, a rinsing operation, and a drying operation from an operation panel (not shown), a type of clothing such as a blanket or cotton, an amount of clothing capable of estimating the weight or weight of clothing, Various information for driving the washing / drying machine 1 such as the required time is set. Then, a washing operation such as a washing operation is performed based on the set information. In addition to the information received from the operation panel, for example, a temperature sensor that detects the temperature of air flowing through the circulation path, a humidity sensor that detects humidity, a weight sensor that detects the weight of the clothes that have been thrown in, the rotating tub 4 and the laundry You may employ | adopt the structure which provides the vibration sensor which detects the vibration of the dryer 1, etc., the external temperature sensor which detects external temperature, etc., and controls the washing dryer 1 based on the information acquired from those sensors.

  In the water tank 3, a supply port 3 a for supplying air into the water tank 3 is formed on the side facing the bottom 4 c of the rotating tank 4, that is, on the back side of the rotating tank 4. The water tank 3 is formed with an exhaust port 3b for exhausting the air in the water tank 3 at the top. In the case of this embodiment, the supply port 3a and the exhaust port 3b are formed in the water tank 3 so as to be positioned above the upper limit line W in which water is stored during the washing operation and the rinsing operation.

  The supply port 3a is connected via a piping member 7 to a circulation part 6 having heating means such as a heater, heating and dehumidifying means such as a heat pump, and air blowing means such as a fan for circulating air. Further, the exhaust port is connected to the circulation portion 6 via a piping member 7. When the circulation unit 6 is driven by the control unit 8, the air heated and dehumidified in the circulation unit 6, that is, the air for drying the clothing, follows the path indicated by the arrow Y 1 in FIG. It passes through and is supplied into the water tank 3.

  More specifically, the air heated, dehumidified and blown by the circulation unit 6 is supplied into the water tank 3 from the supply port 3a, and after taking out moisture from clothes such as clothes in the rotating tank 4, the air is exhausted. It exhausts from the port 3b. And after heating and dehumidifying again in the circulation part 6, it is supplied to the water tank 3. That is, the air circulates in the circulation path formed including the water tank 3 and the rotating tank 4 in the housing 2. For this reason, in this embodiment, air is not supplied directly into the rotary tank 4 from the supply port 3a. In this circulation path, a filter (not shown) for removing lint such as lint, a mechanism for contacting air and water flow to remove moisture in the air in the case of a heater type, etc. Is also provided.

  The rotating tub 4 has a plurality of holes 4 a communicating with the inside of the rotating tub 4 in the cylindrical portion. Via this hole 4a, water used during washing and rinsing operations and air used during drying operations are supplied and discharged. Moreover, the rotating tank 4 is provided with a plurality of baffles 4b on the inner surface side thereof. The clothes accommodated in the rotating tub 4 are agitated by the baffle 4b.

  The rotating tub 4 is rotationally driven in a state where it is supported by a drum support 4d as a supporting member provided on the back side of the bottom 4c. As shown in FIG. 1B, the rotating tub 4 is surrounded by a drum support 4d and an edge of the bottom 4c at the bottom portion 4c, and, for example, six holes 4e communicating with the rotating tub 4 are formed. . The hole 4e is covered with a mesh member 4f to prevent the clothing from entering. For this reason, when the rotating tub 4 rotates, the air supplied toward the rotating tub 4 from the supply port 3a is finally blocked through the hole 4e while being partially blocked by the air flow created by the rotating drum support 4d. Therefore, it is supplied into the rotary tank 4.

  Moisture emitted from the clothes during the drying operation is included in the air circulating through the circulation path and exhausted from the rotating tank 4 and the water tank 3. Therefore, in order to remove moisture more efficiently, that is, in order to improve drying efficiency, it is desirable that the air is exhausted in a state containing more moisture. Therefore, in the present embodiment, the drying efficiency is improved by paying attention to the rotation direction of the rotating tub 4.

  In the case of the washing / drying machine 1, as shown in FIG. 1A, the supply port 3 a is provided on the back side of the rotating tub 4, and the exhaust port 3 b is positioned on the front side of the cylindrical portion of the rotating tub 4. Is provided. Further, as shown in FIG. 2A, the supply port 3a is located slightly to the left of the axis C of the rotation axis Lc in the front view when the rotation axis Lc of the rotating tub 4 is viewed from the front side. The exhaust port 3b is located slightly to the left in the drawing with respect to the axis C of the rotation axis Lc.

  Now, in order to contain more moisture in the air, it is only necessary to make the path when the air flows from the supply port 3a to the exhaust port 3b longer. In this case, the clothes accommodated in the rotating tub 4 are agitated according to the rotation and move in the rotating tub 4. And the air in the rotating tank 4 is also stirred by clothing and the baffle 4b. Therefore, an air flow toward the rotation direction of the rotary tank 4 is formed in the rotary tank 4. In particular, in the case of a structure in which air is supplied into the water tank 3 as in the present embodiment, in other words, a structure in which air is not directly supplied into the rotating tank 4, the air flow in the rotating tank 4 is in the rotational direction. Will match.

At this time, it can be determined as follows which rotation direction the rotation tank 4 is rotationally driven.
First, as shown in FIG. 2A, first, a first imaginary line L1 that is a virtual line connecting the rotation axis Lc of the rotating tub 4 and the supply port 3a, and the rotation axis Lc and the exhaust port 3b are connected. A second virtual line L2 that is a virtual line to be connected is set. In the present embodiment, the first virtual line L1 is set as a line that generally passes through the center of the supply port 3a, and the second virtual line L2 is set as a line that passes through the center of the exhaust port 3b. When rotating the first imaginary line L1 around the rotation axis Lc to the second imaginary line L2, clockwise (ie, forward direction, clockwise direction, first direction) and counterclockwise direction (ie, counter direction, counterclockwise direction, Two rotation directions are assumed (second direction).

  At this time, the rotation angle when rotating the first virtual line L1 clockwise to the second virtual line L2 is θ1, and the rotation angle when rotating counterclockwise is θ2. Each rotation angle is the minimum value when the target virtual line is rotated in the respective rotation direction, that is, in the case of rotating the first virtual line L1 in less than one rotation in this embodiment, the rotation axis. This is the rotation angle when first overlapping the second imaginary line L2 when viewed from the Lc direction. In the washing / drying machine 1, the ratio (ratio) for rotating the rotating tub 4 in the rotation direction of θ1 and θ2 in the rotation direction with the larger rotation angle (counterclockwise in the case of FIG. 2A) is rotated. The ratio is set to be larger than the ratio of rotationally driving the rotary tub in the direction of rotation on the side with a smaller angle (clockwise in the case of FIG. 2A).

  At this time, when the rotating tub 4 is rotationally driven in the clockwise direction indicated by the arrow R1 in FIG. 2 (A), as shown by the arrow Y2 in FIGS. 2 (B) and (C), from the supply port 3a. An air flow having a relatively short path length to the exhaust port 3b is formed.

  On the other hand, when the rotating tub 4 is driven to rotate counterclockwise as indicated by an arrow R2 in FIG. 2 (A), as shown by an arrow Y3 in FIGS. 2 (B) and (C) An air flow having a relatively long path length from the port 3a to the exhaust port 3b is formed. That is, the drying air stays in the rotary tank 4 for a longer time.

  That is, in the case of the washer / dryer 1 having the configuration shown in FIG. 1, when the air is circulated by the circulation unit 6, that is, when the drying operation is executed in this embodiment, the rotating tub 4 is rotated counterclockwise. By driving, the path length of the air from the supply port 3a to the exhaust port 3b can be relatively increased, and the contact time between clothing and air can be increased. Therefore, more water can be included in the air.

  Therefore, from the viewpoint of improving the drying efficiency, it is effective to increase the direction in which the contact time between the clothes and the air can be increased, that is, in the present embodiment, the ratio of rotationally driving the rotating tub 4 counterclockwise. Is.

  However, if rotation driving in only one direction counterclockwise is continued for the reason that the drying efficiency is high, the clothes in the rotating tub 4 tend to be entangled and wrinkles are generated. Therefore, during the drying operation, in order to prevent tangling of clothes, etc., the rotation tank 4 is not driven to rotate only in one direction but is controlled to rotate in the reverse direction. Therefore, in this embodiment, the ratio of the number of rotations for rotating the rotating tub 4 in the counterclockwise direction (second direction) during the drying operation is compared with the case of rotating the rotating tub 4 in the clockwise direction (first direction). For example, it is increased by about 3 times (see FIG. 4A described later).

  For example, in the case of the present embodiment, after rotating the rotating tub 4 for 30 seconds in the clockwise direction, the rotation driving for rotating the counterclockwise for 90 seconds is set as one set, and this one set is repeated for 6 hours, for example. . Thus, by relatively increasing the counterclockwise rotation time, the ratio of the number of rotations for rotating the rotating tub 4 counterclockwise is made larger than the direction for rotating the rotation clockwise. Thereby, generation | occurrence | production of the tangle etc. of clothing is suppressed, improving drying efficiency. This ratio may be set as appropriate depending on the type of clothing.

  However, depending on the type, material, amount, weight, and other conditions of the clothes put into the rotating tub 4, even if the rotation of the rotating tub 4 is driven by mixing clockwise and counterclockwise as described above, Clothing entanglement may occur. As one of the factors of the entanglement, there are factors such as a large ratio of rotational driving in one direction of the rotating tub 4 and a weak driving force of the rotating tub 4 with respect to clothing.

When the washing / drying machine 1 according to the present embodiment detects the occurrence of tangling of clothes, the washing / drying machine 1 performs control to suppress the occurrence of tangling of clothes by performing the control described below.
FIG. 3 is a block diagram schematically showing the configuration of the washing / drying machine 1 according to the present embodiment. The washing / drying machine 1 includes a control unit 8, and the control unit 8 includes a CPU 8a, a RAM 8b, and a ROM 8c. The control unit 8 executes various controls by calling various programs stored in the ROM 8c, for example, and executing calculations by the CPU 8a. For example, a microcomputer can be used as the CPU 8a. The RAM 8b is used as a main memory of the CPU 8a, for example. For example, a DRAM can be used as the RAM 8b, and a flash memory can be used as the ROM 8c.

  The washing / drying machine 1 includes a motor 5 and a circulation unit 6. A rotation sensor 14, an acceleration sensor 16, and a drum ammeter 18 are provided. In addition, the washing / drying machine 1 includes an entanglement detection unit 12.

  The rotation sensor 14 detects the rotation speed and the rotation speed of the rotating tank 4. The acceleration sensor 16 detects the vibration of the rotating tub 4. The drum ammeter 18 is connected to a motor 5 that drives the rotating tub 4 and detects a current load that drives the motor 5. The entanglement detection unit 12 of the control unit 8 detects the occurrence of entanglement of clothes in the rotating tub 4 based on detection signals transmitted from the rotation sensor 14, the acceleration sensor 16, and the drum ammeter 18.

  FIG. 4 is a flowchart showing processing in the washing / drying machine 1 according to the present embodiment. First, when the drying operation is started (S1), the entanglement detection unit 12 of the control unit 8 determines whether or not garment entanglement is detected (S2). When the entanglement of clothing is not detected (S2: No), the process returns to the entanglement detection determination again. When the entanglement of clothing is detected (S2: Yes), the control of the rotating tub 4 is changed to the control content for eliminating the entanglement (S3). The details of the change in the control of the rotating tub 4 will be described later. Thereafter, the drying operation is continued until the end of the drying process (S4).

  FIG. 5 is a diagram schematically showing a rotation control pattern of the rotating tub 4. 5A to 5E, the horizontal axis represents time, the vertical axis represents the rotation speed (rpm) of the rotating tub 4, and the plus side is the clockwise direction in the present embodiment (first direction, positive direction). The minus side represents the counterclockwise direction (second direction, opposite direction). 5A to 5E schematically show one set of rotation control of the rotating tub 4, and show one set of forward and reverse rotations.

FIG. 5A shows a control pattern of the rotating tub 4 during a normal drying operation. This control is a control pattern in which drying efficiency is improved while suppressing the occurrence of tangling of clothing, and is a state in which no tangling is detected by the above-described tangling detection unit 12, that is, a control pattern before tangling detection. In the control pattern shown in FIG. 5A, for example, the following is set as one set, and this is repeatedly driven during the drying process, for example, for 6 hours.
First direction 30 seconds at 50 rpm (number of rotations in 30 seconds = 25 rotations)
Second direction 90 seconds at 50 rpm (rotation speed during 90 seconds = 75 rotations)
Rotational speed ratio in one set First direction / second direction = 1/3 = 0.333

FIG. 5B to FIG. 5E described below show the control pattern when the entanglement detection is performed by the entanglement detection unit 12 (S2: Yes) and then changed to the control content to eliminate the entanglement (S3). Show. FIG. 5B is a control pattern for eliminating the tangling of clothing by increasing the time of the first direction rotation as shown below. For example, in the normal control pattern shown in FIG. 5A, the ratio of the rotational speeds in the first direction / second direction is 1: 3, but in the control pattern shown in FIG. 5B, it is 2: 3. In other words, the ratio of rotation in the first direction is increased.
First direction 45 seconds at 50 rpm (number of rotations in 45 seconds = 37.5 rotations)
Second direction 75 seconds at 50 rpm (rotation speed in 75 seconds = 62.5 rotations)
Rotational speed ratio in one set First direction / second direction = 3/5 = 0.6

FIG. 5C shows a control pattern for eliminating the entanglement of clothing by reducing the rotation speed of the second direction rotation as shown below. In the control pattern shown in FIG. 5C, the rotation speed in the second direction is halved, so that the ratio of rotation in the first direction is relatively increased.
First direction 30 seconds at 50 rpm (number of rotations in 30 seconds = 25 rotations)
90 seconds at 25 rpm in the second direction (rotation speed during 90 seconds = 37.5 rotations)
Rotational speed ratio in one set First direction / second direction = 2/3 = 0.666

FIG. 5D shows a control pattern for eliminating or suppressing tangling of clothing by increasing the rotation speed of the first direction rotation as shown below. In the control pattern shown in FIG. 5D, the ratio of the first direction rotation is changed by increasing the rotation speed of the first direction rotation.
First direction 30 seconds at 100 rpm (number of rotations in 30 seconds = 50 rotations)
First direction 90 seconds at 50 rpm (rotation speed during 90 seconds = 75 rotations)
Rotational speed ratio in one set First direction / second direction = 2/3 = 0.666

FIG. 5 (E) is a control pattern for eliminating the entanglement of clothing by increasing the rotational speed (that is, rotational power) of the first direction rotation and the second direction rotation, as shown below. By using the effect of loosening the laundry, the entanglement is eliminated and suppressed.
First direction rotation 30 seconds at 100 rpm (number of rotations in 30 seconds = 50 rotations)
Second direction rotation 90 seconds at 100 rpm (number of rotations during 90 seconds = 150 rotations)
Rotational speed ratio in one set First direction / second direction = 1/3 = 0.333

  For example, in a normal control pattern, when this control is performed when the driving force for rotating the clothes by the baffle 4b of the rotating tub 4 is insufficient, the tangling of the clothes can be eliminated. For example, a case where the weight of clothing that easily contains moisture is large is assumed. Here, the ratio of the number of rotations in the first direction / second direction is 1: 3, which is the same as the ratio of the number of rotations in the normal control pattern described above. After the loosening control shown in FIG. 5 (E), the control may return to the control shown in FIG. 5 (A), or the entanglement elimination control shown in FIGS. 5 (B) to 5 (D) may be performed.

  The above-described rotation control patterns shown in FIGS. 5B to 5E are examples, and the first direction / second direction rotation time, the rotation speed, or the combination of the first direction / second direction rotation is arbitrary. It is. Further, the control patterns shown in FIGS. 5B to 5E may be executed in combination.

Next, with reference to FIG. 6 and FIG.
FIGS. 6A and 6B show the state of the garment 19 in the rotating tub 4 when the garment 19 is not entangled and when the garment 19 is entangled, respectively. FIGS. 7A and 7B show a graph showing an example of detection of the entanglement of the garment 19 by the acceleration sensor 16 and a graph showing an example of detection of the entanglement of the garment 19 by the drum ammeter 18, respectively.

  When the garment 19 is not entangled, the garment 19 is uniformly spread and distributed on the wall surface of the rotating tub 4 as shown in FIG. Accordingly, since the increase or decrease in the load on the motor 5 is small, the increase or decrease in the detection data by the drum ammeter 18 is small as indicated by the graph line 24a shown in FIG.

  Further, since the clothing 19 is uniformly distributed in the rotating tub 4, vibration of the rotating tub 4 is small when the clothing 19 is dropped or agitated by the baffle 4b. Therefore, the detection data by the acceleration sensor 16 that detects the vibration of the rotating tub 4 also changes in a state where the increase / decrease is small as indicated by the graph line 22a shown in FIG.

  On the other hand, when the garment 19 is entangled, the garment 19 exists as a lump. In this case, the balance of the clothes 19 in the rotating tub 4 is large and the balance is poor, and the load current applied to the motor 5 that rotationally drives the rotating tub 4 increases or decreases instantaneously. Therefore, the detection data by the drum ammeter 18 greatly increases and decreases as indicated by the graph line 24b shown in FIG. 7B. The detection of the entanglement by the drum ammeter 18 is performed by transmitting a signal from the drum ammeter 18 to the entanglement detection unit 12 and making the determination based on the signal. For example, a threshold 24c is set, and it is determined that entanglement has occurred when the detected amount exceeds the threshold 24c.

  Further, when the garment 19 is entangled, the garment 19 exists as a lump, and therefore, when the lump of the garment 19 is struck by the rotation of the rotating tub 4, a large shake or vibration is generated. To do. Further, when the clothes 19 are lifted by the baffle 4b of the rotating tub 4, the load is large and the balance is deteriorated, and at this time, the vibration and vibration of the drum increase.

  In this case, the detection data by the acceleration sensor 16 greatly increases or decreases as indicated by the graph line 22b shown in FIG. The detection of the entanglement by the acceleration sensor 16 is performed by transmitting a signal from the acceleration sensor 16 to the entanglement detection unit 12 and making the determination based on the signal. For example, a threshold 22c is set, and it is determined that there is an entanglement when the detected amount exceeds the threshold 22c.

  The process by the entanglement detection unit 12 is achieved by executing a program in the control unit 8. The threshold values 22c and 24c may be different threshold values depending on the type, amount, material, and the like of the clothing 19.

  As described above, according to the washing / drying machine 1 according to the present embodiment, when the entanglement of the garment 19 is detected during the drying operation of the garment 19, the entanglement of the garment 19 is eliminated from the normal drying operation pattern so far. Perform control to change to a driving pattern that can be Thereby, it becomes possible to effectively suppress the entanglement of the garment 19, and as a result, wrinkles of the garment 19 are suppressed, and the finish can be improved.

(Second Embodiment)
Hereinafter, the dryer according to the second embodiment will be described with reference to FIGS. 8 to 11. In the second embodiment, several specific examples in which the positional relationship between the supply port and the exhaust port and the direction of the rotation axis Lc are different from the first embodiment will be described. In the second embodiment, illustration of the piping member 7 and the like is omitted.

<Specific example 1>
In the case of the washing / drying machine 10 of the first specific example, as shown in FIG. 8A, both the supply port 3 a and the exhaust port 3 b are provided on the bottom of the water tank 3, that is, on the back side of the rotary tank 4. The supply port 3a is located below the axis C of the rotation axis Lc in the front view as viewed from the direction of the rotation axis Lc, and the exhaust port 3b is located above the axis C of the rotation axis. Is located.

Thus, even if the positional relationship between the supply port 3a and the exhaust port 3b is different from that in the first embodiment, the first virtual line that is a virtual line connecting the rotation axis Lc of the rotating tub 4 and the supply port 3a. Of the two rotation directions assumed when the line L1 is rotated to the second virtual line L2, which is a virtual line connecting the rotation axis Lc and the exhaust port 3b, the side with the larger rotation angle, that is, FIG. ), The ratio of rotationally driving the rotating tub 4 in the clockwise direction of rotation indicated by the arrow R3 is larger than the ratio of rotationally driving the rotating tub 4 in the direction of small rotation angle, that is, counterclockwise. By doing so, similarly to the first embodiment, it is possible to form an air flow that allows more water to be contained in the air. Therefore, laundry such as clothes can be efficiently dried, and drying efficiency can be improved.
When the entanglement detection unit 12 of the control unit 8 detects the entanglement of the clothing 19, the control for changing to the rotation control pattern shown in FIGS. 5B to 5E is performed according to the flow shown in FIG. Do.

<Specific example 2>
In the case of the washing / drying machine 20 of the specific example 2, as shown in FIG. 8 (B), both the supply port 3a and the exhaust port 3b are provided at positions facing the cylindrical part of the water tank 3, that is, the cylindrical part of the rotating tank 4. ing. And the supply port 3a and the exhaust port 3b are located above the axial center C of the rotating shaft Lc in the front view seen from the rotating shaft Lc direction similarly to 1st Embodiment. However, in the specific example 2, the supply port 3a is located above the exhaust port 3b.

Even in such a positional relationship, a virtual line connecting the rotation axis Lc and the exhaust port 3b is connected to the first virtual line L1 that is a virtual line connecting the rotation axis Lc of the rotating tank 4 and the supply port 3a. Of the two rotation directions assumed when rotating to the second imaginary line L2, which is a line, in the case of FIG. 8B, the rotation direction is the counterclockwise rotation direction indicated by the arrow R4. By making the rate of rotationally driving the rotating tub 4 larger than the rate of rotationally driving the rotating tub 4 in the direction of the smaller rotation angle, that is, in the clockwise rotation direction, as in the first embodiment, more moisture can be obtained. An air flow that can be included in the air can be formed. Therefore, laundry such as clothes can be efficiently dried, and drying efficiency can be improved.
When the entanglement detection unit 12 of the control unit 8 detects the entanglement of the clothing 19, the control for changing to the rotation control pattern shown in FIGS. 5B to 5E is performed according to the flow shown in FIG. Do.

<Specific example 3>
In the case of the washing / drying machine 30 of the specific example 3, as illustrated in FIG. 9, the rotation axis Lc is horizontal with the installation surface. That is, in the washing / drying machine 30, the rotating tub 4 is rotationally driven in a direction parallel to the installation surface, unlike the first embodiment. The supply port 3a and the exhaust port 3b are both in the same positional relationship as in the first embodiment.

Even in the washing / drying machine 30 in which the rotation axis Lc is parallel to the installation surface, the ratio of rotationally driving the rotary tub 4 in the rotation direction on the side where the rotation angle is large, as in the first embodiment, By making it larger than the ratio of rotationally driving the rotary tub 4 in the rotational direction with the smaller rotation angle, it is possible to form an air flow that allows more moisture to be included in the air. Therefore, laundry such as clothes can be efficiently dried, and drying efficiency can be improved.
When the entanglement detection unit 12 of the control unit 8 detects the entanglement of the clothing 19, the control for changing to the rotation control pattern shown in FIGS. 5B to 5E is performed according to the flow shown in FIG. Do.

<Specific Example 4>
In the case of the washing / drying machine 40 of Example 4, as shown in FIG. 10, the supply port 3a is formed on the rotation axis Lc.
In this case, since the air supplied from the supply port 3a is assumed to be relatively warmer than the air containing moisture exhausted from the exhaust port 3b, it is assumed that the air flows vertically upward. Therefore, assuming the third imaginary line L3, which is a virtual line extending vertically upward from the rotation axis Lc of the rotating tub 4 when viewed from the direction of the rotating axis Lc of the rotating tub 4, the third imaginary line L3 is rotated. Of the two rotation directions assumed when rotating to the second imaginary line L2 around the axis Lc, the ratio of rotationally driving the rotary tub 4 in the rotation direction on the side with the larger rotation angle (the θ4 side in FIG. 10) The rotation rate of the rotary tub 4 is set to be larger than the rate of rotationally driving the rotary tub 4 in the rotation direction on the side where the rotation angle is small (θ3 side in FIG. 10). Thereby, the flow of the air which can make more water | moisture content in air can be formed in the rotating tank 4, and a drying efficiency can be improved.

In addition, when the exhaust port 3b is located on the rotation axis Lc, among the two rotation directions assumed when rotating the third virtual line L3 to the first virtual line L1 around the rotation axis Lc, By making the ratio of rotationally driving the rotary tub 4 in the rotational direction with the larger rotation angle larger than the ratio of rotationally driving the rotary tub 4 in the rotational direction with the smaller rotational angle, more moisture is transferred to the air. The flow of air that can be included can be formed in the rotating tub 4, and the drying efficiency can be improved.
When the entanglement detection unit 12 of the control unit 8 detects the entanglement of the clothing 19, the control for changing to the rotation control pattern shown in FIGS. 5B to 5E is performed according to the flow shown in FIG. Do.

<Specific Example 5>
In the case of the washer / dryer 50 of Example 5, as shown in FIG. 11, both the supply port 3a and the exhaust port 3b are positioned on a straight line passing through the axis C of the rotation axis Lc when viewed from the rotation axis Lc. Is formed. That is, the supply port 3a and the exhaust port 3b have a point-symmetrical positional relationship with the axis C as the center. In this case, since the first imaginary line L1 and the second imaginary line L2 are substantially in a straight line, the rotation angle is substantially equal regardless of which direction the rotary tub 4 is rotationally driven.

  Therefore, in the case of such a configuration, a third virtual line L3 that is a virtual line extending vertically upward from the rotation axis Lc of the rotating tub 4 in a state viewed from the direction of the rotating axis Lc of the rotating tub 4 is assumed. Of the two rotation directions assumed when the first imaginary line L1 is rotated around the rotation axis Lc to the third imaginary line L3, the rotation angle is larger, that is, the configuration shown in FIG. The rate at which the rotating tub 4 is rotationally driven in the counterclockwise rotation direction in which the rotation angle shown is θ6 is the clockwise rotation in which the rotation angle indicated by the arrow R6 is θ5 in the configuration shown in FIG. It is made larger than the ratio which rotationally drives the rotating tub 4 in the rotation direction.

  As a result, the drying air that tends to go vertically upward forms a flow in the rotating tub 4 in a direction in which the path length to the exhaust port 3b becomes longer, that is, in a direction in which the contact time between the laundry and the air becomes longer. Is done. Therefore, more moisture is contained in the air and exhausted, and laundry such as clothes can be efficiently dried.

When the entanglement detection unit 12 of the control unit 8 detects the entanglement of the clothing 19, the control for changing to the rotation control pattern shown in FIGS. 5B to 5E is performed according to the flow shown in FIG. Do.
FIG. 11 shows an example in which the supply port 3a and the exhaust port 3b are formed in point-symmetric positions. However, the supply port 3a and the exhaust port 3b are in the same direction, that is, from the axis C to the supply port 3a. The same applies to the case where the exhaust port 3b is formed on the extension of the above, and the case where the supply port 3a is formed on the extension line from the axis C to the exhaust port 3b. In this case, the supply port 3a and the exhaust port 3b are formed so as to be shifted in the direction of the rotation axis Lc, that is, in the front-rear direction of the washing / drying machine 50, but when viewed from the direction of the rotation axis Lc, the two match. It seems to be formed in the direction.

(Other embodiments)
The present embodiment is not limited to those exemplified in the above-described embodiment, and can be arbitrarily modified or expanded without departing from the scope thereof.
In the present embodiment, the ratio of the first direction / second direction when the rotating tub 4 is rotationally driven is fixedly set. However, this is done for convenience of explanation and is actually dry. When the operation is performed, the ratio may be changed as the drying of the garment 19 progresses and the weight of the garment 19 decreases.

  Further, when executing the drying operation, the type of laundry is determined, and the ratio of the first direction / second direction when the rotating tub 4 is rotationally driven according to the determined type, material, amount, etc. of the laundry. May be adjusted.

In this embodiment, although it demonstrated using the example applied to the washing dryer 1 provided with the washing function as a dryer, you may apply to the dryer which is not provided with the washing function.
Each embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1, 10, 20, 30, 40, 50 are washing dryers (dryers), 2 is a housing, 3 is a water tank, 3a is a supply port (circulation path), 3b is an exhaust port (circulation path), 4 is a rotating tank, 4a and 4e are holes, 4c is a bottom part, 5 is a motor (driving means), 6 is a circulation part (circulation means, circulation path), a piping member 7 (circulation path), 8 is a control part, 12 is An entanglement detector, 14 is a rotation sensor, 16 is an acceleration sensor, 18 is a drum ammeter, L1 is a first imaginary line, L2 is a second imaginary line, L3 is a third imaginary line, and Lc is a rotation axis.

Claims (7)

A rotating tank disposed in the housing;
Drive means for rotationally driving the rotary tank;
A circulation path having a supply port for supplying air to the rotary tank side and an exhaust port for exhausting air from the rotary tank side;
A circulation means for circulating air in the circulation path;
A rotation sensor for detecting the number of rotations of the rotating tank;
An entanglement detector that detects entanglement of clothing in the rotating tub,
When the air is circulated by the circulation means, a first imaginary line that is a virtual line connecting the rotation axis of the rotary tank and the supply port in a state viewed from the rotation axis direction of the rotary tank, and the rotation axis And a second virtual line that is a virtual line connecting the exhaust port and two rotation directions assumed when the first virtual line is rotated about the rotation axis to the second virtual line Among them, when the rotation direction on the side with the smaller rotation angle is the first direction and the rotation direction on the side with the larger rotation angle is the second direction,
In the normal control, the control is performed with the ratio of the rotation in the second direction larger than the rotation in the first direction,
When the entanglement detection unit detects an entanglement, the dryer performs control to change a ratio between the rotation in the first direction and the rotation in the second direction of the rotating tub. A rotating tank disposed in the housing;
Drive means for rotationally driving the rotary tank;
A circulation path having a supply port for supplying air to the rotary tank side and an exhaust port for exhausting air from the rotary tank side;
A circulation means for circulating air in the circulation path;
A rotation sensor for detecting the number of rotations of the rotating tank;
An entanglement detector that detects entanglement of clothing in the rotating tub,
When either the supply port or the exhaust port is formed on the rotating shaft of the rotating tank, when the air is circulated by the circulating means, the rotating tank is viewed from the rotating shaft direction of the rotating tank. Assuming a third imaginary line that is a virtual line extending vertically upward from the rotation axis, and assuming that the third imaginary line is rotated around the rotation axis to the second imaginary line or the first imaginary line. When the rotation direction on the side with the smaller rotation angle is the first direction and the rotation direction on the side with the larger rotation angle is the second direction,
In the normal control, the control is performed with the ratio of the rotation in the second direction larger than the rotation in the first direction,
When the entanglement detection unit detects an entanglement, the dryer performs control to change a ratio between the rotation in the first direction and the rotation in the second direction of the rotating tub. A rotating tank disposed in the housing;
Drive means for rotationally driving the rotary tank;
A circulation path having a supply port for supplying air to the rotary tank side and an exhaust port for exhausting air from the rotary tank side;
A circulation means for circulating air in the circulation path;
A rotation sensor for detecting the number of rotations of the rotating tank;
An entanglement detector that detects entanglement of clothing in the rotating tub,
When both the supply port and the exhaust port are formed on one straight line passing through the rotation axis of the rotary tank, when circulating the air by the circulation means, from the rotation axis direction of the rotary tank Assuming a third imaginary line that is a virtual line extending vertically upward from the rotation axis of the rotating tub in the viewed state, when rotating the first imaginary line to the third imaginary line around the rotation axis Of the two assumed rotation directions, when the rotation direction on the side with the smaller rotation angle is the first direction and the rotation direction on the side with the larger rotation angle is the second direction,
In the normal control, the control is performed with the ratio of the rotation in the second direction larger than the rotation in the first direction,
When the entanglement detection unit detects an entanglement, the dryer performs control to change a ratio between the rotation in the first direction and the rotation in the second direction of the rotating tub.   4. The control according to claim 1, wherein, when the entanglement is detected by the entanglement detection unit, control is performed to change a ratio of the number of rotations in the first direction and the second direction of the rotating tank. A dryer according to claim 1.   2. When the entanglement detector detects an entanglement, control is performed to largely change the number of rotations in the first direction and the number of rotations in the second direction of the rotating tank. 4. The dryer according to any one of items 1 to 3. The dryer further includes a speed sensor that detects vibration of the rotating tank,
The dryer according to any one of claims 1 to 5, wherein the entanglement detection unit detects entanglement of clothes based on a signal transmitted from the acceleration sensor. The dryer further includes a drum ammeter that detects a drive current of the drive means,
The dryer according to any one of claims 1 to 5, wherein the entanglement detection unit detects entanglement of clothes based on a signal transmitted from the drum ammeter.

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