KR101335854B1 - Drum-type washer-dryer - Google Patents

Abstract

The drum includes a drum rotating around the transverse axis and a water tank installed to enclose the drum. The drum is rotated at a high speed to centrifugally dehydrate the laundry, and then the drying air is supplied to the drum through a drying furnace to dry the laundry. In the air supply, the air blowing means is provided in the drum separately from the drying air passage, and the air blowing path is located above the drum rotating shaft to provide a side air permeable hole for blowing air from the side of the drum. And a side blowing operation for blowing air from the side of the drum into the drum after the dewatering operation, so that laundry attached to the drum can be easily detached in the dewatering operation, and drying efficiency is improved and power consumption is reduced without drying imbalance. To provide drum-type laundry dryer which can expect reduction of .

Description

Drum Wash Dryer {DRUM-TYPE WASHER-DRYER}

The present invention relates to a drum type laundry dryer.

Conventionally, in the drum laundry dryer, a water tank is fixedly installed in a housing body forming an outline, and the drum is rotatable in the water tank, and in the drying operation, a drying air supply means for supplying warm air of dry air into the drum is provided. It is.

In order to prevent drying imbalance due to skew of laundry during this drying operation, a proposal has been made to enable drying air to be supplied from the circumferential side of the drum to improve the drying efficiency (for example, JP-A-A). 2004-194876).

In this type of laundry dryer, however, the process is usually performed after washing or dehydrating operation. In the dehydration operation before the drying operation, the drum is rotated at a high speed so that the laundry contained therein is centrifugally dehydrated. have.

For this reason, the laundry is pressed by the drum inner wall by centrifugal action, and comes into close contact with and adhered to the thin film. Therefore, progressing to the drying operation in this stuck state not only lowers the drying efficiency but also causes problems such as dry imbalance and many wrinkles, which is not practically desirable.

Therefore, as a countermeasure, it is possible to control the dehydration rotation of the dehydration operation in multiple stages, for example, by gradually increasing the rotation speed from the low speed rotation to the high speed rotation or by rotating the drum forward and backward at a low speed after the high speed dehydration, that is, the laundry is firm. Proposals have also been made to cope with the problem of making it difficult to stick, or to install (drop) a laundry in a stuck state.

However, these methods are disadvantageous in terms of energy saving effects such as rotation control that is special for dehydration operation and the effect of removing and dropping laundry that has been stuck or stuck for a long time, and inducing an increase in power consumption.

Japanese Laid-Open Patent Publication No. 2004-194876

Accordingly, the present invention provides a drum type laundry dryer which can easily remove laundry adhering to a drum before moving to a drying operation, and can improve the drying efficiency without drying imbalance and reduce the power consumption.

According to the drum type laundry dryer of the present embodiment, the drum includes a drum which rotates about a horizontal axis in the housing and a water tank installed to enclose the drum, and the drum is rotated at a high speed to centrifugally dehydrate the laundry. In carrying out the drying operation of the laundry by supplying the drying wind through the drying blast furnace, a blowing path having a blowing means separate from the drying blast passage and having an air blowing path in the drum through the water tank and the drum, The ventilation path is provided above the drum rotating shaft and has a side-permeable through hole for blowing from the side of the drum, and the side blowing operation of blowing the air from the side of the drum into the drum is performed after the dehydration operation. It is characterized by.

In this way, after the dehydration operation, the side blowing operation of peeling laundry blown from the drum side in the drum is carried out, so that the laundry can be easily removed, and the drying efficiency can be improved without drying imbalance, and the power consumption can be reduced. You can get a drum-type dryer.

1 is a longitudinal sectional view showing a schematic structure of an entire drum type laundry dryer.
2 is a cross-sectional view schematically showing a blowing path leading to a drum side surface.
3 is an external side view of the drum.
4 is a diagram showing other operation modes (a), (b) and (c) of the side blowing operation.
Fig. 5 shows another modified example of the drum, Fig. 5A is a plan view cut along the line DD of Fig. 5B, and Fig. 5B is an external side view of the drum.
FIG. 6: shows another modified example of a drum, FIG. 6 (a) is a top view cut | disconnected along the EE line of FIG. 6 (b), and FIG. 6 (b) is an external side view of the drum.
It is a figure corresponded in FIG. 3 which shows 2nd Embodiment.
8 is an enlarged cross-sectional view near the baffle.
9 is a principle diagram for explaining the operation of the photointerrupter, (a) is a plan view, (b) is a front view.
Fig. 10 is a diagram showing other operation modes (a) and (b) of side blowing operation.

(First Embodiment)

Hereinafter, the first embodiment shown in FIGS. 1 to 4 will be described.

First, FIG. 1 is a longitudinal sectional side view which shows schematic structure of the whole drum type washing dryer, The water tank 2 is installed in the housing body 1 which forms an outer side, The drum 3 is installed in the inside of the water tank 2, and FIG. It is. The water tank 2 and the drum 3 are both formed in a cylindrical shape with the rear surface closed and the front open, and the front opening of the water tank 2 is the front opening of the housing body 1 through the bellows 4. Correspondingly, the laundry opening 5 is formed.

The door 6 which opens and closes a front opening part is provided in the front opening part of the housing body 1 used as this inlet 5 so that rotation is possible.

The front end of the drum 3 is provided with, for example, a liquid balancer 7 in which brine is enclosed, and is provided in almost the entire circumferential side wall (main part) 3a of the drum 3 forming a cylindrical shape. The transmission hole 8 is formed (only a part is shown).

Although the specific structure of this perforation hole 8 is mentioned later, as a function, it normally functions as a water flow hole at the time of a washing | cleaning operation or a dehydration operation, and functions as a ventilation hole of the warm wind which is dry wind during a drying operation. Moreover, the some baffle 9 of the shape which protrudes inward and extends in the axial direction is attached to the inner surface side of the circumferential side wall 3a of the drum 3.

A plurality of hot air inlet openings 10 (see FIG. 2) are formed in a disk-shaped cross-section 3b, which is a rear surface of the drum 3, arranged in a ring shape concentrically with the rotation axis of the drum 3.

On the other hand, the warm air outlet 11 is formed in the upper region of the circumferential end of the front opening of the water tank 2, and communicates with the exhaust duct 12 extended downward. On the other hand, the hot air inlet 13 is formed in the upper part of the disk-shaped cross-section 2b which is the back surface of the water tank 2, and is communicated with the air supply duct 14 extended below.

A drain port 15 is formed at a rear portion of the bottom of the water tank 2, and a drain hose 17 is connected to the drain port 15 via a drain valve 16 to form a drain path. 2) Water inside can be discharged to outside.

The motor 18 which rotationally drives the drum 3 is attached to the back surface side of the cross-sectional part 2b used as the back part of the water tank 2. The rotating shaft 19 of this motor 18 penetrates through the water tank 2, is connected with the center part of the end surface part 2b of the back side of the drum 3, and functions also as the rotating shaft directly connected to the drum 3. As shown in FIG. Thereby, the drum 3 is rotatably supported by the water tank 2 coaxially.

In addition, the water tank 2 is elastically supported in the housing body 1 by the some suspension 20 (only one illustration) etc., As disclosed as the rotating shaft 19, the axial direction of the water tank 2 is front-and-back. It is a horizontal axis shape to become, and is arrange | positioned in the shape inclined to the front upper part slightly.

Therefore, the drum 3 supported by the water tank 2 is also supported similarly and rotates about the inclined horizontal axis.

The motor 18 of the drive device is, for example, an outer rotor type and a thin brushless DC motor, which directly drives the drum 3 via the rotation shaft 19 directly connected based on inverter control. Rotate to

The base plate 21 which forms the bottom part of the housing body 1 is arrange | positioned at the lower part, and the rectangular cylindrical ventilation duct 22 extended in the horizontal direction is arrange | positioned on this base plate 21. As shown in FIG. The ventilation duct 22 has an air supply duct 14 connected to the lower end of the exhaust duct 12 at one end thereof through the air blower 23 (described later), which is a blower. Is connected to the lower end of the

Therefore, the exhaust duct 12, the ventilation duct 22, and the air supply duct 14 communicate with each other via the water tank 2 and the drum 3, and the drying air path 31 mentioned later is formed.

Here, if the blower 23 of a blower means is demonstrated, the blower 23 is arrange | positioned at the rear end of the ventilation duct 22, and the fan 24, the fan casing 25, and the fan motor 26 are described. And a fan casing 25 is connected between the ventilation duct 22 and the air supply duct 14.

When the fan 24 is rotated, an air path is taken in from the ventilation duct 22 side and discharged to the air supply duct 14 side. This forms the drying air path 31 by which the warm air used as the drying wind mentioned later flows in the direction of the arrow A in a figure, and circulates.

Subsequently, a description will be given of the means for generating warm air. In the present embodiment, the heat pump mechanism 27 fitted with the ventilation duct 22 is used as the warm air heating source. That is, the evaporator 28 is arrange | positioned at the front side in the ventilation duct 22, and the condenser 29 is arrange | positioned at the rear side.

Although these evaporator 28 and the condenser 29 are not shown in detail at all, they are formed from the finned tube which provided many heat transfer fins in the refrigerant | coolant distribution pipe by the pitch of fine heat exchange, and it is excellent in heat exchange and ventilates between each of the heat transfer fins. The wind in the duct 22 flows in the direction of the arrow A, and the heat exchange effect is performed at this time.

The evaporator 28 and the condenser 29 constitute a heat pump mechanism 27 together with a compressor 30 and a throttle valve (especially an electronic throttle valve) not shown. In this heat pump mechanism 27, a refrigerant is used. In order to connect the compressor (30), the condenser (29), the throttle valve (not shown), and the evaporator (28) by means of a pipe through the pipe (refrigeration cycle), the compressor 30 operates to circulate the refrigerant. I'm trying to.

Therefore, in the drying operation, the warm air supplied into the drum 3 and contributing to the drying of the laundry is discharged from the exhaust duct 12, and when the evaporator 28 in the ventilation duct 22 is reached, the evaporator 28 exhausts the air. Moisture contained in is cooled and dehumidified.

The dehumidified air reaches the condenser 29, and the dehumidified air is heated with a high temperature and high pressure refrigerant to warm the condenser 29. This warm air is sent to the air supply duct 14 and supplied from the rear side into the water tank 2 and the drum 3 to dry the laundry contained in the drum 3.

In this way, the warm air flows through the respective ducts 12, 22, 14, etc. constituting the drying air passage 31 in the direction of the solid arrow A by driving the blower 23, and the water tank 2 and the drum 3. The hot air can be circulated and supplied.

Moreover, the drum type laundry dryer of this embodiment is equipped with the air-cooling means which can perform a cooling operation with respect to the installed indoor space, and can perform laundry operation comfortably even in high temperature conditions, such as summer. Hereinafter, the schematic structure of the said air cooling means is demonstrated.

In FIG. 1, the blowing air passage 32 branched with the drying air passage 31 on the upstream side of the evaporator 28 provided on the front side of the ventilation duct 22 and communicating with the lower portion of the front surface of the housing body 1 is opened. Forming. The jet passage 32 is formed in a horizontally long rectangular cross section extending in a substantially horizontal direction toward the outside (indoor), and the shutter 34 for opening and closing the blower outlet 33 is opened and closed at the horizontally opened jet opening 33. It is installed so that rotation is possible in the direction.

Although the details of this shutter 34 are omitted, normally, the passageway on the ejection opening 33 side is kept in a closed state, and, for example, is made to be rotatable by automatic control using a motor or an electromagnet or the like as a driving source, and the ejection opening ( 33) to open and close.

In addition, a cooling switching damper 35 is provided at a branching opening with the drying air passage 31 corresponding to the inlet of the air blowing air passage 32. The cooling switching damper 35 is rotatably supported in the front-rear direction at the upper end portion, and can be controlled to rotate automatically by using a motor or an electromagnet as a driving source, and the rotation of the cooling switching damper 35 is a drying air path. (31) It selectively opens and closes the passage on the side of the ventilation duct 22 and the blowing air passage 32.

Then, a cross flow fan device (only the cross flow fan 36 is shown) is provided in the blower air passage 32, and a horizontally long cross flow fan 36 is disposed in correspondence to the blower port 33, and is driven to rotate by a motor (not shown). I am trying to.

In addition, the air vent 44 is positioned between the evaporator 28 and the condenser 29 which are downstream of the evaporator 28 of the ventilation duct 22 to form an opening. The vent 44 is formed at one upper wall portion of the ventilation duct 22 and communicates with the inside and outside of the housing body 1 via the vent 44. Although the above is the main structure of a cold wind means, the function is demonstrated in the following action description.

In addition, as described above, according to the drying air passage 31 which circulates and supplies the warm air as the heat source for warming the heat pump mechanism 27, when the warm air is supplied into the drum 3, the water tank from the air supply duct 14 The hot air inlet 13 at the rear of (2) and the hot air inlet 10 at the rear of the drum 3 are supplied into the drum 3, that is, the warm air is supplied from the rear of the drum 3.

On the other hand, in this embodiment, the blowing path which blows into the drum 3 is provided separately from the drying air path 31, and this blowing path is provided with the blowing duct 37 which comprises a main part. That is, in particular, as shown schematically in FIG. 2, the blowing air flowing through the air blowing duct 37 is more effective than the drying air flowing through the drying air passage 31 from the rear surface of the drum 3. Supply is possible through the cylindrical circumferential side wall 3a serving as a side surface.

Specifically, in this embodiment, it is set as the structure which combines the blowing means blown by the blowing duct 37 with the blower 23 which supplies warm air. Therefore, the base end of the blowing duct 37 is taken as the structure which combined the air supply duct 14 of the drying air passage 31. As shown in FIG.

For this reason, it is set as the structure which branches into the channel | path which communicates with the back side of the water tank 2 in the upper part of the air supply duct 14, and the channel | path extended to the upper part of the water tank 2 (it corresponds to the individual blowing duct 37). The wind path switching damper 38 is rotatably provided at this branch point.

The wind path switching damper 38 can be controlled to rotate automatically by using a motor, an electromagnet, or the like as a driving source, and normally closes the passage on the side of the air duct 37 to communicate with the rear side of the water tank 2 and the drum 3. The drying air passages 31 are maintained in a communication state, and these can be opened and closed alternately.

And the discharge port 37a connected to the water tank 2 of the ventilation duct 37 opposes the cylindrical circumferential side wall 3a used as the side surface of the drum 3, and the some permeation | transmission formed in the circumferential side wall 3a is carried out. It is possible to supply into the drum 3 via the hole 8, and this constitutes the blowing path into the drum 3. As shown in FIG.

Although details of the use of the air from the air blowing path and the like will be described later, the air flow switching damper 38 is supplied with the dry air supplied from the end face 3b (the hot air inlet 10) of the rear face of the drum 3 as described above. And the blowing air supplied from the circumferential side wall 3a (through hole 8) on the drum 3 side surface can be selectively used.

Here, the permeation hole 8 of the circumferential side wall 3a on the side of the drum 3 functions as the permeation hole for side blowing of the blowing path.

Then, the specific structure of the permeation hole 8 of the drum 3 is demonstrated with reference to the external side view especially of the drum 3 shown in FIG.

As shown in FIG. 3, the permeation hole 8 is formed over substantially the entire circumference except for the part which mounts the baffle 9 among the cylindrical circumferential side walls 3a of the drum 3, and And all have the same shape with the same diameter.

In the present embodiment, however, the air is allowed to be blown into the drum 3 through the air blowing duct 37, so that the middle region region S in the axial direction of the circumferential side wall 3a (in the drawing, the region in the circumferential direction surrounded by the double-dot chain line). The density of the permeation hole 8 provided in the c) is greater than the density of the permeation hole 8 than in other areas.

In other words, by increasing the aperture ratio representing the total aperture area per unit area as a ratio, the means for increasing the diameter of the through hole provided in the intermediate region region S as the other means for increasing the aperture ratio than that of the other region region. You can think of

The width | variety of the area | region represented by this intermediate | middle part area | region S is set to the magnitude | size equal to or more than the discharge port 37a of the blowing duct 37, and the blowing duct which opposes the circumferential side wall 3a of the drum 3 The blowing air from the discharge port 37a of 37 can be efficiently blown into the drum 3 from the permeation hole 8.

In addition, in FIG. 1, the upper part of the housing body 1 is provided with the operation part 39 which sets various driving courses, etc., and the control apparatus 40 is provided in the housing body 1 of the said back surface side. . This control device 40 is mainly composed of a microcomputer composed of a CPU, ROM, RAM, etc., not shown, and is responsible for controlling the overall operation of the laundry dryer.

For this reason, the control apparatus 40 inputs the various operation signals from the operation part 39, the laundry quantity detection signal which is not shown in figure, a water level detection signal, a dry temperature sensor, etc., respectively, based on the control program memorize | stored previously. To control various operations. In addition, a water supply valve 41, a water supply case 42, and a water supply hose 43 for supplying water in the water tank 2 are provided in the upper portion of the housing body 1.

In general, in this type of laundry dryer, washing, rinsing, dehydration and drying operations are automatically performed based on a control program of the control device 40, and among these, it is necessary to sufficiently dehydrate the laundry in the dehydration operation before the drying operation. There is.

In this embodiment, between this dehydration operation and a drying operation, the operation process which blows into the drum 3 is carried out, for example, rotating the drum 3 for a predetermined time at low speed. As the low speed rotation here, for example, in the washing operation, a rotation speed (for example, 30 to 60 rpm) suitable for the washing operation in which the laundry is lifted to a high position in the drum 3 and dropped by the weight of the laundry itself is reduced. It is set to, but is set at a lower speed (for example, 30 rpm or less).

The reason for the low speed rotation and the like will be described later in detail. However, since the air is efficiently blown into the drum 3, in particular, the wind discharged from the discharge port 37a of the blower duct 37 Since it becomes effective for blowing out from the perforation hole 8 etc. effectively, it can operate at low speed rotation.

In this low speed rotation, the drum 3 may be rotated at a low speed in one direction, or may be intermittently rotated. In this intermittent rotation, the drum 3 may be rotated forward or stopped, for example. , Reverse rotation and stop may be repeated, that is, forward and reverse rotation.

The operation mode by the so-called side blowing operation in which the low speed rotation of the drum 3 and the blowing from the side surface into the drum 3 are performed simultaneously is demonstrated with reference to FIG. 4 shows the rotational speed (rpm) of the drum 3 on the vertical axis, and time (and operating step) on the horizontal axis.

First, the operation mode shown in Fig. 4A which is employed in the present embodiment will be described. In the latter half of the dehydration operation shown, the drum 3 centrifugally dehydrates the laundry from the laundry by a high speed rotation (for example, 1700 rpm), and when the dehydration operation ends after a predetermined time, the side blowing operation is continued. have.

In this side blowing operation, the motor 18 is driven by inverter control, and the drum 3 is continuously rotated in one direction at low speed (for example, 6 rpm). At the same time, the air blower 23 is also driven, and the air path switching damper 38 is rotated to open the passage on the side of the air duct 37, which is normally closed, and through the hot air inlet 13 at the rear of the water tank 2. To close the drying air passage 31.

Therefore, the blowing flows through the blowing duct 37 shown in FIG. 2 in the direction of the broken arrow B, and the blowing duct 37, the discharge port 37a, and the permeation hole 8 of the circumferential side wall 3a of the drum 3 Is supplied into the drum 3 via a blowing path consisting of the middle region region S, and is blown into the drum from the side surface of the so-called drum 3.

The air flow discharged from the inside of the drum 3, the water tank 2, and the like reaches the blower 23 through the same path as that of the drying air passage 31 such as the exhaust duct 12 and the ventilation duct 22. That is, the circulation is blown.

And if this side air blowing operation is performed for a predetermined time, a drying operation will start continuously. Although the detailed description is omitted, in the drying operation, the heat pump mechanism 27 and the blower device 23 serving as the heating source of the warm air are driven, and the wind path switching damper 38 rotates and returns to the passage on the blower duct 37 side. And close the passage on the rear side of the water tank 2 to keep the drying air passage 31 in communication.

On the other hand, the drum 3 is driven at a low speed rotation, for example, at a low speed rotation almost equal to the washing speed, and also rotated forward and backward. Therefore, in the operation mode, while the drum 3 is rotated at a low speed, the warm air of the drying wind flows through the drying air passage 31 in the direction of the solid arrow A, and from the warm air inlet 10 provided on the rear surface of the drum 3, the drum ( 3) supplied into.

Next, the operation of the drum type laundry dryer of the above embodiment will be described.

When a driving course that automatically performs, for example, from the standard washing operation to the drying operation is selected by the setting operation by the operation unit 39, the control device 40 first starts the washing and rinsing operation as the washing operation.

In this washing operation, water is supplied from the water supply valve 41 to the water tank 2 via the water supply case 42 and the water supply hose 43, and the motor 18 is driven based on the water supply up to a predetermined water level. The drum 3 is driven forward and backward at a relatively low speed (for example, 30 to 60 rpm), and washing and rinsing operations of the laundry are sequentially performed.

When such a washing operation is complete | finished, dehydration operation continues continuously. In this dewatering operation, after the water in the water tank 2 is discharged, a dewatering operation is performed in which the drum 3 is rotated in one direction at a high speed (for example, 1700 rpm). As a result, the laundry in the drum 3 is centrifugally dehydrated.

In the state where this high speed dewatering operation is completed, the laundry is centrifugally acted, and in particular, the laundry is held in a state where it adheres to the peripheral side wall 3a side of the drum 3. In particular, the laundry directly adhering to the circumferential side wall 3a is in close contact with the circumferential side wall 3a through moisture such as a thin water film.

Normally, when the dehydration operation is completed, the drying operation is immediately started. However, in the present embodiment, the drying operation is performed after the following steps.

That is, when the high speed dewatering operation is finished, the drum 3 is controlled at low speed rotation. Here, for example, the drum 3 is slowly rotated at a speed of 6 rpm in one direction as described in the operation mode in FIG. 4A (detailed later). At the same time, the air blower 23 is energized and driven by the air blower, and in particular, as shown in FIG. 2, the air path switching damper 38 is rotated to open the passage on the side of the air duct 37 that is normally closed. , The passage to the rear side of the water tank 2 passing through the one air supply duct 14 is blocked.

As a result, the wind generated by the fan 24 is broken in the blower duct 37 opened by the passage switching of the air path switching damper 38 from the combined air supply duct 14 as shown in FIG. 2. It flows in the direction (B) and is discharged toward the circumferential side wall 3a of the opposed drum 3 from the discharge port 37a in the upper part of the water tank 2.

This causes the flow of wind to blow from the side to the drum 3 (hereinafter referred to as side blowing). Therefore, as shown to the operation mode of FIG. 4 (a), the drum 3 performs side blowing operation | movement which performs a blowing operation by rotating slowly at low speed in one direction.

Here, the low-speed rotation of the drum 3 will be described. In the washing operation and the like, a relatively low-speed rotation of 30 to 60 rpm, which is effective for lifting and dropping laundry, is adopted. The rotation speed is set to slower rotation than slower than 30 rpm.

The reason for this is that the laundry is firmly stuck to the circumferential side wall 3a of the drum 3 by centrifugal action due to high speed dehydration, so that the laundry does not fall easily as in the washing operation just by moving the laundry upward.

However, such a low-speed operation lengthens the staying time for the laundry to be located at the top, promotes the drop action due to its own weight, and also allows the drum 3 to be discharged from the penetrating holes 8 of the drum 3 during side blowing. The blowing of the wind into the inside is advantageous in that it can be intensively performed at a slower rotation.

In addition, the discharge port 37a of the blowing duct 37 is specifically opposed to the middle hole region S of the circumferential side wall 3a shown in Figs. And the perforation hole 8 provided in this intermediate | middle site | part area S is concentrated and densely provided than the perforation hole 8 provided in another site | part area | region, ie, the aperture ratio represented by the ratio of the total opening area per unit area is formed large. It is.

Under such conditions, the air blowing facing the side surface of the drum 3 discharged from the discharge port 37a is continuously and effectively passed through the through hole 8 provided in the region in the circumferential direction of the intermediate region S. Blown into).

The wind blown from the permeation hole 8 goes straight and hits the laundry (not shown), and acts in the direction of removing the laundry from the circumferential side wall 3a of the drum 3. Since most of the wind that hits the laundry is shielded by the resistance of the laundry, most of the wind flows in the transverse direction so that the circumference becomes wider in the through hole 8, and flows in between the laundry and the circumferential side wall 3a in close contact with the laundry. I will try to.

This action to be introduced effectively functions to remove water by acting to dry the thin water film portion remaining after the dehydration between the laundry and the circumferential side wall 3a or the dehydration remaining.

This action effectively functions as the drum 3 rotates slowly and can last in time. As a result, the adhesion between the laundry and the circumferential side wall 3a is weakened, and the laundry stuck in the adhered state can be blown off quickly.

In this way, the laundry stuck to the inner circumferential surface of the circumferential side wall 3a of the drum 3 by centrifugal dehydration is laterally blown from the upper position in the drum 3 by side blowing operation, and most of the laundry is kept in water. It dissociates in the state of close contact.

Therefore, the laundry lifted up to the upper part sufficiently obtains the self-weighting effect in the falling direction under slow rotation, and is easier to detach. In addition, the side blowing is linearly blown downward from the upper blowing passage 37, so the wind pressure can promote the action of the laundry acting in the dropping direction to detach.

The laundry which had been peeled off receives the air blown by the limited blowing range from the discharge port 37a of the blower duct 37, and at first it starts to peel partially, but the drop action due to its own weight gradually increases and the peeling action is rapidly increased. It expands to a large extent. This is because laundry after dehydration, for example, each garment, is generally overlapped and stuck to the inner circumferential surface of the drum 3.

Therefore, when some laundry starts to peel so that it falls, the part which has not yet been blown also receives an action in the direction of peeling, so that the action of peeling off by blowing along with the self-weighting action is accelerated rapidly, and the side surface is short. Can be solved by blowing operation.

Further, as described above, the higher the position of the permeation hole 8 of the drum 3 which has been blown from the discharge port 37a of the blower duct 37 to a higher position, the more the function of dropping due to the weight of the laundry is fully removed. Although the inside is advantageous as an action, it is at least positioned above the rotating shaft 19 to be opened, and functions effectively as an action of obtaining and removing the blowing action in the falling direction with respect to the laundry.

The control device 40 continues to transfer to dry operation, when the side blowing operation is finished after the above-described side blowing operation for a predetermined time (see FIG. 4A). Although the detailed description is omitted, the drum 3 is subjected to forward and reverse rotation by low speed rotation (for example, 50 rpm), and the heat pump mechanism 27 and the air blower 23 are energized and driven as described above. As shown in Fig. 1, the warm air as the drying wind circulates the drying air passage 31 in the direction of the solid arrow A to dry the laundry in the drum 3.

Since the laundry is released in a state where it adheres to the drum 3 as described above, it is possible to dry the laundry having a good finish without dry imbalance or wrinkles.

In addition, in the case of this drying operation, the cooling switching damper 35 is naturally maintained in the normal closed position which closed the passage to the blowing air passage 32, and the air passage switching damper 38 opens the passage to the blowing duct 37. It is in the state which rotated and returned to the normally closed position to close, and the drying air path 31 is maintained with the hot air circulating so that it could circulate in the direction of the solid arrow A.

In the above, the effect | action of the air cooling means at the time of performing cooling operation of the indoor space in which the laundry dryer was installed is demonstrated. First, the cooling switching damper 35 opens the passage to the blowing air passage 32 which is a normal closed position, and makes it the state which communicates with the ventilation duct 22, and also the ventilation duct 22 which communicates with the exhaust duct 12. A switching operation is performed to close the passage on the side.

At the same time, the shutter 34 is opened, the compressor 30 of the heat pump mechanism 27 is driven, and the cross flow fan device (cross flow fan 36) is driven.

By such driving operation, as shown by the broken arrow C in FIG. 1, air other than the ventilation duct 22 is sucked into the ventilation duct 22 from the vent 44, and the evaporator 28 is dried during operation. And flows as the airflow in the reverse direction and is cooled.

Then, the cooled air is discharged to the outside of the front of the housing body 1 through the blowing air passage 32 to cool the space in which the laundry dryer is installed. This cooling operation is operation controlled based on the control apparatus 40, such as a temperature sensor (not shown) and set time control.

As described above, according to this embodiment, after the dehydration operation by the high speed rotation of the drum 3, the drum 3 is passed through the circumferential side wall 3a of the drum 3 from the blowing duct 37 opened in the water tank 2; In the side), the side ventilation operation process which blows from the side surface and peels laundry was provided.

This side blowing is advantageous in that it acts in the direction of detaching the stuck laundry and is also equally effective in many stuck laundry. Particularly, the laundry can be removed by drying by blowing air, and the laundry can be removed in a short time with respect to the laundry that is in close contact with the inner circumferential surface of the circumferential side wall 3a. Reduction is aimed at.

Therefore, at the start of the subsequent drying operation, at least most of the laundry is released in a state where it adheres to the inner circumferential surface of the drum 3, so that the washing of the laundry in the drum 3 is well performed to promote the drying action efficiently. It is possible to dry the laundry with good finish without drying imbalance or wrinkles.

In addition, the permeation hole 8 of the circumferential side wall 3a of the drum 3 can be blown not only as blown air from the side, but also used as a water supply hole for washing or dehydration, and can reduce or reduce the capacity of the drum 3. It can be easily formed with a simple structure by suppressing large change or complicated shape.

Further, the drum 3 is set at a slow low speed that is lower than the rotational speed at the time of washing operation, and the blowing air can be blown in sufficiently from each of the permeation holes 8 of the circumferential side wall 3a. The time for staying in the air becomes long, and in the meantime, it receives the action of the falling direction due to the weight of the upper laundry, which has the advantage of effectively acting to remove the laundry.

In addition, the permeation holes 8 are provided in a large number in the middle region region S in the axial direction of the circumferential side wall 3a, and the discharge port of the blow passage 37 is located at a position opposite to the intermediate region region S. Since 37a) is provided, it is possible to effectively blow air from the permeation hole 8 into a wide range in the drum 3.

In this way, the opening ratio of the so-called permeation holes 8 is set in the intermediate region S so that the effect of peeling off by blowing is increased. However, the intermediate region S is a region where laundry is likely to stick firmly by high speed dehydration. Since it is preferable to correspond to, the setting is made in consideration of the inclination angle of the drum 3, the rotational speed, and the like. Therefore, the position slightly shifted to the front end portion or the rear end side of the drum 3 is referred to as the intermediate region region S. You may also

Moreover, as a blowing means which blows into the blowing path which consists of a blowing duct 37 etc., in this embodiment, it is the structure which combines with the blower 23 which produces | generates the warm air of a drying wind and supplies it to the drying air path 31 at the time of a drying operation. I did. For this reason, the air flow path change damper 38 which switches the air supply to the air blow path or the drying air path 31 was provided in the downstream of a blow means.

As a result, the effective utilization of the blowing means and the simplification of the blowing path formed separately from the drying blast 31 can be suppressed, and the increase in the number of parts can be suppressed, and it can be provided in a simple and compact configuration.

In addition, although the operation mode at the time of side blowing operation of this embodiment was made into the control content which rotates the drum 3 continuously in one direction slowly as shown to Fig.4 (a), it is not limited to this, Next You may deform as follows. First, as shown in FIG.4 (b), it is good also as control content of the intermittent operation which rotates and stops the drum 3 to one direction. In the case of this operation mode, since the division which stops for a predetermined time is provided especially, the blowing which continues in this stop division can be blown into the drum 3 intensively, and it promotes the fall effect by self weight, and stops. Operation is added, too, and it is effective to remove laundry well.

The intermittent operation may be rotated forward and backward as shown in the operation mode of FIG. 4C. Specifically, the drum 3 is rotated forward, stop, reverse and stop repeatedly. In the forward and reverse rotation, the laundry alternately receives rotation and stop operations in the other direction. Functions effectively to remove the laundry from the.

On the other hand, the shape of the drum 3 can also be modified as shown in Figs. 5 and 6.

First, FIG. 5A is a sectional view taken along the line D-D in FIG. 5B and shown in the arrow direction, and FIG. 5B is an external side view of the drum 3. This modification provides the convex part 45 of several tanks (for example, three places) which protruded inwardly of the drum 3 of the said embodiment.

The convex part 45 is arrange | positioned in the intermediate | middle area | region area S of the circumferential side wall 3a of the drum 3, and extends in rod shape in the axial direction, and also the baffle 9 in the intermediate position between each baffle 9 Is located in a slightly separated position.

According to the structure in which the convex part 45 is provided in the drum 3 demonstrated in the said embodiment, the laundry which stuck to the convex part 45 at the time of dehydration adhere | attaches on the inner peripheral surface of the circumferential side wall 3a through moisture. Can be suppressed. For example, the circumference | surroundings of the convex part 45 have a level | step difference between an inner peripheral surface, and a laundry becomes stuck state so that a gap may arise over a level | step difference part. Alternatively, the degree of adhesion is reduced even in the laundry between the convex portions 45 and the adjacent convex portions 45.

Therefore, when side air blowing operation is performed in this state, the stuck laundry can be removed easily. In addition, when the wind from the permeation hole 8 is directly blown into the above-mentioned gap part in which laundry is formed over a step part, it can act effectively also on the contact part of the circumference, and can remove it easily.

Alternatively, the convex portion 45 is not only provided in the middle region region S in the axial direction, but also disposed in the middle of the circumferential direction between the baffles 9 in which laundry is easily attached, and thus can be removed effectively.

Next, another modified example shown in FIG. 6 will be described. FIG. 6A is a cross-sectional view taken along the line E-E of FIG. 6B and shown in the arrow direction, and FIG. 6B is an external side view of the drum 3. This modified example is also common in the point which provided the convex part 46 of several tanks (for example, two places) which protruded inwardly of the drum 3 similarly to the said modified example.

Like the convex part 45, this convex part 46 is arrange | positioned in the intermediate | middle area | region area S of the circumferential side wall 3a, and is located between each baffle 9, but is provided in the direction orthogonal to an axis, ie the circumference | surroundings. It differs in that it is provided extending in a rod shape in the direction.

Therefore, this convex part 46 can also expect an effect substantially the same as the said modification, such that the laundry between each baffle 9 is provided in the inner peripheral surface which is easy to stick.

In addition, the said convex parts 45 and 46 are not limited to the said embodiment at all, For example, it can also form integrally with the drum 3, or you may make it mount the other member of rod shape.

It is also possible to arrange the convex portions having shorter lengths intermittently rather than one long rod shape or to alternately arrange the convex portions extending in the axial direction and the convex portions extending in the circumferential direction. It can be carried out by.

In addition, although it was set as the structure which uses the blower 23 for dry wind as a blowing means of side blowing, you may provide not only this but a blowing means for side blowing. In this case, a blowing means can be arrange | positioned in the vicinity of a blowing path, and a long blowing duct etc. can be devoted.

Therefore, not only the duct structure which circulates and blows through the water tank 2 or the drum 3, but both the side air blowing path and the drying drying path 31 is exhausted from the inside of the drum 3 to the outside of the housing body 1. It is good also as a structure of what is called an exhaust type, and a heat generating source, such as an electric heat heater, may be employ | adopted instead of the heat pump mechanism 27. FIG.

(Second Embodiment)

7-10 shows 2nd Embodiment, the same code | symbol is attached | subjected to the part substantially the same as 1st Embodiment, description is abbreviate | omitted, and a different point is demonstrated. First, FIG. 7 is a figure corresponding to FIG. 3, and FIG. 8 is an expanded sectional view of the vicinity of the baffle 48 provided in the drum 47, and it demonstrates based on these drawings.

In the second embodiment, the side blowing is performed by using the baffles 48 provided on the circumferential side wall 47a of the drum 47, which differs from that in which the perforation hole 8 is used in the first embodiment. Do.

As shown in Fig. 7, the drum 47 of the present embodiment is provided with one inlet port 49 in the circumferential side wall 47a in contact with the rear surface side of one baffle 48 indicated by a broken line. . The inlet port 49 is opened in a rectangular shape and is provided corresponding to each baffle 48 of a plurality of parts (for example, three places of equal arrangement), and the air blowing duct 37 shown in FIG. The opening is formed slightly larger at the position opposite to the discharge port 37a of the "

The baffle 48 is fixed to the drum 47 by screws 50 or the like, and the longitudinal direction thereof is arranged in the axial direction of the drum 47, and the inlet 49 is disposed at an approximately intermediate position thereof to form the baffle ( It communicates with the interior space of 48).

The baffle 48 is provided with an outlet 51 formed with a plurality of through holes at the top of the mountain shape projecting inwardly, and the drum 47 through the inlet 49 and the outlet 51 of the baffle 48. ) Is in communication with the inside and outside.

In the circumferential side wall 47a of the drum 47, as in the first embodiment, a plurality of through holes 52 (see Fig. 7) are provided except for the portion of the baffle 48, and washing, dehydration and drying operations are also provided. It functions as a water passage hole and a ventilation hole of the city.

As described above, the inlet port 49 is disposed to face the discharge port 37a. However, since the baffle 48 (drum 47) rotates and moves, the inlet port 49 cannot simply be disposed to face each other. Therefore, in this embodiment, as shown in FIG. 9 as a principle diagram, the rotation sensor which functions as a rotation position detection means of the drum 47, for example, the structure which provided the motor 18 with the photointerrupter 53 is provided. Doing.

As shown to Fig.9 (a), (b), the light shielding plate 54 which protrudes outward in the radial direction is provided in the predetermined part of the rotor 18a of the motor 18. As shown to FIG. The light shield plate 54 is fitted so as to face up and down, and the photointerrupter 53 formed by arranging the light emitting portion 53a at the upper portion and the light receiving portion 53b at the lower portion is fixed to an appropriate stop portion.

When the rotor 18a rotates and the light shield plate 54 rotates to the position where the light of the photointerrupter 53 is blocked, the rotor 18a is output as a rotation position detection signal of the rotor 18a, and this rotation position detection signal is It is input to the control apparatus 40. The control device 40 stops the motor 18 based on this signal, and thus stops and controls the drum 47.

At this time, the predetermined baffle 48 is stopped at a position facing the discharge port 37a of the blower duct 37. That is, the position of the baffle 48 can be set in advance in accordance with the output of the rotational position detection signal of the first rotor 18a to obtain a desired stop position of the baffle 48.

In this case, the baffle 48 is set in the baffle 48 of the high position which opposes the discharge port 37a. Therefore, the photointerrupter 53 functions as predetermined stop position detection means of the baffle 48 based on the rotation position detection signal by the rotor 18a.

10 shows the operation mode of the side blowing operation, and the operation thereof will be described below.

The drum type laundry dryer of the embodiment starts side blowing operation after high-speed centrifugal dehydration as shown to Fig.10 (a). First, the motor 18 is energized and driven, and the drum 47 is rotated at low speed (6 rpm). And when the rotor 18a rotated to the predetermined angle as mentioned above based on FIG. 9, the control apparatus 40 which inputs the rotation position detection signal by the photointerrupter 53 stops and controls the motor 18. FIG. The rotation of the drum 47 is stopped. The stop position of this drum 47 is a position where the predetermined baffle 48 and the discharge port 37a of the blower duct 37 faced each other.

In this stop position, the drum 47 is stopped for a predetermined time as shown in Fig. 10A. Blowing by the blower 23 in this stop period is carried out from the discharge port 37a of the blower duct 37 which constitutes the blower path | route which reaches into the drum 47, and the inlet port 49 which opposes the discharge port 37a. It is discharged into the baffle 48 via it, and it is taken out into the drum 47 from the outlet 51. At this time, the laundry adhering to the baffle 48 is blown intensively, and the laundry can be removed in the same manner as in the first embodiment.

Then, the control device 40 ends the stop period of the predetermined time and drives the motor 18 again (see FIG. 10). The control device 40 stops the drum 47 again when the drum 47 is rotated 120 degrees from the initial stop position, and arranges the second baffle 48 in the rotational direction opposite to the discharge port 37a. Control to blow into the drum 47 through the (48).

Subsequently, when this stop period elapses for a predetermined time, the control device 40 drives the motor 18 to rotate the drum 47 by 120 degrees, and stops at that position. Thereby, the 3rd baffle 48 is hold | maintained in the predetermined position which opposes the discharge port 37a, and can blow into the drum 47 through the baffle 48. FIG.

Then, for example, when blowing using three baffles 48 in sequence is performed, the side blowing operation is terminated. After that, the normal drying operation is effectively performed as described above.

According to the said structure, not only the effect which removes the laundry by side blowing from the baffle 48 arrange | positioned at the circumferential side wall 3 is obtained, but in this embodiment, since it has a step part around the baffle 48, dehydration is carried out. Since the laundry is hardly adhered even at the time, the laundry of the part of the baffle 48 is easy to detach, and the action of detaching the laundry connected to it is spread, and as a result, most of the laundry above the drum 47 is removed. I can drop it off.

In addition, since a plurality of baffles 48 (for example, three) are blown side by side, the effect of quickly removing the entire laundry can be obtained.

In addition, although the drum 47 is effective to stop at a predetermined position at the point of slow rotation, the baffle 48 is reliably stopped by the predetermined position. For example, the drum 47 is suddenly stopped by braking by an electromagnetic force generated by the stator, or If necessary, a mechanical locking means may be provided so as to securely restrain the predetermined position.

In addition, as shown in Fig. 10A, the drum 47 rotates at low speed while the predetermined baffle 48 is positioned. At this time, as shown in FIG. 7, the permeation hole 52 is densely provided in the middle part region S containing the part which the discharge port 37a opposes similarly to the said embodiment, and the said drum 47 Can be blown from the penetrating hole 52 into the drum 47, and the peeling effect by the blowing can be utilized effectively.

In the side blowing operation using the baffle 48, it is also possible to deform as follows. Referring to the blowing operation mode shown in Fig. 10B, after the dehydration operation is performed in the same manner as in the above-described embodiment, one photo-interrupter 53 is used and one is based on the rotation position detection signal by the rotor 18a. The predetermined stop position of the baffle 48 is detected, and the control device 40 stops the motor 18 to stop at the position where the inlet 49 and the discharge port 37a of the baffle 48 face each other.

Thereafter, the side blowing operation from the baffle 48 is continued as it is in the stopped state. Therefore, it blows into the drum 3 using one of three baffles 48, and the action which removes laundry is performed.

In this case, the number of the baffles 48 can correspond to one or more, and it has the advantage that the rotation control of the motor 18 and the drum 3 can be simplified.

In addition, it is not limited to the photointerrupter 53 as a rotation sensor, For example, a magnetic detection element, such as a hall IC, is provided on the stator side (stop part), the rotation angle information of the rotor is detected, and the detection signal is detected. The predetermined control position of the baffle 48 may be calculated | required by the input control apparatus 40. FIG.

In addition, the baffle 48 can be formed integrally with the circumferential side wall 47a of the drum 47, and in this case, the inflow port 49 is not required since the wind can be introduced from the recesses formed on the back side. Instead, the outlet 51 as the through hole may be provided.

The outlet 51 may be provided not only in the top of the peak of the baffle 48 but also in the circumference thereof. Alternatively, instead of the baffle, a part of the circumferential side wall of the drum, for example, may be formed to be intensively opened, that is, to increase the opening ratio, and to stop the part at a predetermined position facing the discharge port 37a.

In addition, it is not limited to the said 1st and 2nd embodiment, For example, you may implement combining each embodiment suitably, and various deformation | transformation can be implemented.

While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and its modifications are included in the scope and spirit of the invention, and are also included in the invention and equivalent scope of the claims.

1: housing body 2: water tank
3, 47: drums 3a, 47a: peripheral wall
8, 52: through hole 9, 48: baffle
10: hot air inlet 13: hot air inlet
14: air supply duct 18: motor
18a: rotor 23: blower (blowing means)
27: heat pump mechanism 31: drying stove
37: blower duct (blowing path) 37a: discharge port
38: wind shift damper (switch damper) 40: control device
45, 46: convex 49: inlet
51 outlet (through hole) 53 photointerrupter (rotation sensor)

Claims (9)

A drum formed in a cylindrical shape that rotates around a horizontal axis to accommodate laundry, and a water tank installed to contain the drum, and after drying the laundry by centrifugal dehydration of the laundry by rotating the drum at a high speed, drying air is dried in the drum. In supplying through the air path to perform the drying operation of the laundry,
A blower path provided separately from the drying blower and capable of blowing through the water tank and the drum toward a circumferential side wall in the drum opposite from the discharge port at the top of the water tank;
The blowing path is further provided with a side hole transmission hole which is located above the drum rotation axis and can be blown from the side of the drum,
And a side blow operation for blowing air from the discharge port from the side of the drum into the drum after the dewatering operation. The method of claim 1,
The peripheral wall of the drum formed in a cylindrical shape is provided with a plurality of through holes, of which the side blow-through holes for blowing from the drum side are arranged in an intermediate region of the circumferential wall in the axial direction. Laundry dryer. 3. The method of claim 2,
A drum type laundry dryer having an opening ratio greater than that of the permeation hole provided in another portion of the circumferential side wall, wherein the permeation hole for blowing side air from the side of the drum is larger. The method according to claim 2 or 3,
A drum type laundry dryer having a plurality of convex portions projecting inwardly formed on a circumferential side wall of the drum provided with the side blow-through holes for blowing. The method according to claim 2 or 3,
And a drum type laundry dryer configured to rotate the drum at a lower speed than the laundry operation during the side blowing operation. The method of claim 5, wherein
And a drum type laundry dryer configured to perform an intermittent operation in which the drum is stopped and rotated for a predetermined time during the side blowing operation. The method of claim 1,
The circumferential side wall of the drum formed in a cylindrical shape is provided with a baffle having the permeation hole for the side blowing protruding inwardly, and the blowing into the drum is blown from the back side of the baffle and blown out from the permeation hole for the side blowing. Drum-type dryer. The method of claim 7, wherein
A motor for driving the drum is provided with rotational position detecting means, and based on the rotational position detecting means detects a position where the baffle faces the blowing path, and stops the drum at that position for a predetermined time to blow air from the baffle into the drum. Drum-type laundry dryer, which is to perform a side blowing operation. The method of claim 1,
The blower means for blowing in the blower path is configured to combine the blower means for supplying dry air to the dry blower during the drying operation, and further, the blower path or the dry blower on the downstream side of the blower means. Drum type dryer which arranged change damper which switched air supply of air.

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