CN102260990B - Clothes dryer - Google Patents

Clothes dryer Download PDF

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Publication number
CN102260990B
CN102260990B CN2011101392213A CN201110139221A CN102260990B CN 102260990 B CN102260990 B CN 102260990B CN 2011101392213 A CN2011101392213 A CN 2011101392213A CN 201110139221 A CN201110139221 A CN 201110139221A CN 102260990 B CN102260990 B CN 102260990B
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China
Prior art keywords
mentioned
air
cylinder
air channel
blow
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CN2011101392213A
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Chinese (zh)
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CN102260990A (en
Inventor
尾关祐仁
中本重阳
藤原宣彦
中井厚仁
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN102260990A publication Critical patent/CN102260990A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/04Quantity, e.g. weight or variation of weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/18Condition of the laundry, e.g. nature or weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

A clothes dryer of the present invention has a drum which accommodates an article to be dried; a drum driving unit which rotationally drives the drum; a first air passage having a first blow-out port opened to the drum; a second air passage having a second blow-out port opened to the drum and having a smaller air passage cross-sectional area than the first blow-out port, an air passage switching unit which selectively switches between the first air passage and the second air passage; an air blowing unit which blows drying air into the first air passage or the second air passage; and a controller which controls the drum driving unit, wherein the air blowing unit blows out the drying air of a larger amount into the drum from the first blow-out port when the first air passage is selected than when the second air passage is selected, and the air blowing unit blows out the drying air at a higher pressure and a higher speed into the drum from the second blow-out port when the second air passage is selected than when the first air passage is selected, and the controller changes rotation sequences of the drum by controlling the drum driving unit according to the selected one of the first air passage and the second air passage.

Description

Clothesdrier
Technical field
The present invention relates to a kind of clothesdrier that carries out the drying of clothing etc.
Background technology
In the past; This clothesdrier is delivered to drying in the cylinder with air through the air channel; Make this drying throw into clothing in the cylinder and wait from clothing and remove moisture, make cloth drying and will contain wetly and drying that become high humility is expelled to the outer air channel of cylinder with air with air contact.
But; Owing in limited narrow cylinder space, carry out the drying of clothing, therefore clothing twines each other in dry run, causes the dry winding part that can't contact clothing with air; Thereby the dry spended time of the part that clothing is twined, the problem that exists dry required time to increase.
And, there is a kind of following problem, that is, dried clothing etc. becomes the severe state of fold under the state that twines, and its solution for example is disclosed in the japanese kokai publication hei 7-185196 communique (below be recited as " patent documentation 1 ").
Describe to patent documentation 1 disclosed clothesdrier below.
Patent documentation 1 disclosed drum-type washing drying machine in the past possesses: cylinder, and it accommodates the clothing that is dried; Motor, it makes this cylinder rotate to positive and negative two directions; And mainly comprise in cylinder the fan of supplying with warm braw and the warm braw feedway of heater.
This drum-type washing drying machine possesses the load change amount detection unit of the variation of the induction-motor load when being used to detect the every rotation of cylinder one time; The variation of the induction-motor load when the every rotation of cylinder one time is that setting is when above; Be judged as the clothing that is dried and twine, make the motor counter-rotating.
That is, only when the clothing that is dried takes place to twine, carry out the inversion driving of cylinder, the driving dwell time that is used in the motor of cylinder counter-rotating thus becomes required Min., thereby shortens drying time.
Yet, in structure in the past, especially taking place under the situation of the long clothing mutual state that twines such as long sleeves cutter shirts, trousers etc. solidly, only making the cylinder counter-rotating is to be not enough to untie the winding of locker room.
In addition; The each generation all must be carried out inversion driving to cylinder when clothing twines, and when cylinder reversed, the motion of clothing temporarily stopped; Dry contact stop with warm braw and clothing perhaps only limits to and a part of contact with clothing, so there is following problem in the result: cause prolong drying time.
Summary of the invention
Clothesdrier of the present invention has: cylinder, and it accommodates dry object; Drum driven portion, it is rotated driving to cylinder; First air channel, it has first blow-off outlet that on cylinder, forms opening; Second air channel, its have on cylinder form opening and air through sectional area less than the air of first blow-off outlet second blow-off outlet through sectional area; The air channel switching part, it optionally switches first air channel and second air channel; Air supplying part, it delivers to first air channel or second air channel with drying with air; And control part; Its index drum drive division, wherein, air supplying part is blown as follows: when having selected first air channel; With big air quantity when having selected second air channel drying is blown out to cylinder from first blow-off outlet with air; When having selected second air channel, compare when having selected first air channel, with the high pressure high wind speed drying is blown out to cylinder from second blow-off outlet with air; And control part has been according to having selected first air channel still to select second air channel to come the index drum drive division, and switches the rotation sequential of cylinder.
Thus, can realize following a kind of clothesdrier: can fix with the fold that the low consumption amount of power is eliminated the clothing in the drying process effectively, the winding of locker room, can realize the minimizing that the fold of shortening and the clothing of drying time produces.
Description of drawings
Fig. 1 is the major part sectional view of the drum-type washing drying machine in the embodiment 1 of the present invention.
Fig. 2 is the module circuit diagram of this drum-type washing drying machine.
Fig. 3 is the sequential chart of the action of this drum-type washing drying machine of expression.
Fig. 4 is the sequential chart of expression cylinder rotation sequential 1 shown in Figure 3.
Fig. 5 is the sequential chart of expression cylinder rotation sequential 2 shown in Figure 3.
Fig. 6 is another routine sequential chart of expression cylinder rotation sequential 2 shown in Figure 3.
Description of reference numerals
1: cylinder; 1a: rotating shaft; 2: carrying cylinder; 3: the drum driven motor; 3a~3c:3 phase winding; 4: air supplying part; 4a: fan is used in air-supply; 4b: Air Blast fan is used motor; 5: outlet; 6: dehumidification portion; 7: the heating part; 8: the first blow-off outlets; 9: the first air channels; 10: the second blow-off outlets; 11: the second air channels; 12: the air channel switching part; 12a: valve; 13: circulation air path; 15: clothing amount test section; 16: compressor; 17: radiator; 18: restriction; 19: heat dump; 19a: position detecting element; 19b: position detecting element; 19c: position detecting element; 20: pipeline; 21: the frequency conversion drive circuit; 22: frequency changer circuit; 22a~22f: switch element; 23: alternating electromotive force; 24: load driving part; 25: feed water valve; 27: draining valve; 28: rectifier; 29: choking-winding; 30: smmothing capacitor; 31: water level detecting portion; 32: the input configuration part; 33: display part; 34: damper (damper); 35: the door body; 40: drainpipe; 50: heat pump assembly; 70: control part; 71: timer; 72: the rotating speed test section; 100: framework.
The specific embodiment
Below, with reference to accompanying drawing embodiment of the present invention is described.In addition, the present invention is not limited to this embodiment.
(embodiment 1)
Fig. 1 is the major part sectional view of the drum-type washing drying machine in first embodiment of the present invention, and Fig. 2 is the module circuit diagram of this drum-type washing drying machine.
In Fig. 1 and Fig. 2, the cylinder 1 that forms opening and have a tubular of bottom surface is accommodated washings.And cylinder 1 is included in the carrying cylinder 2 as the tank of the tubular that stores washings, and carrying cylinder 2 is supported in the framework 100.
In cylinder 1, establishing a side that forms opening is the place ahead, and the side with bottom surface is the rear, in Fig. 1, establishes the left side and is the place ahead, and the right side is the rear.Describe through such definition the place ahead, rear and the following accompanying drawing of use.
On the bottom surface of cylinder 1, rotating shaft 1a is installed, the drum driven motor 3 (drum driven portion) of the rotating shaft 1a rotation that makes cylinder 1 is installed at the back side of carrying cylinder 2 with the state that tilts to the front upper place.In addition, the drainpipe 40 that is provided with the water supply pipe (not shown) of feed water valve 25 (with reference to Fig. 2) and is provided with draining valve 27 is connected carrying cylinder 2.
Be provided with the opening door body 35 in opposite directions with cylinder 1 in the front surface side of framework 100, the user can come to take out from cylinder 1 washings such as clothing and perhaps puts into washings such as clothing to cylinder 1 through beating opening door body 35.
On the internal perisporium face of cylinder 1, be provided with a plurality of projection bodies (not shown) towards the inboard.
Through cylinder 1 is rotated with low speed, tangle by the projection body washings and to above hold up the back and washings fallen at suitable height place, stir action (action (tumbling) of rolling) thereby can apply to washings.
Be used to make the drying of cloth drying to be sent in the cylinder 1 through air supplying part 4 with air.Drying is removed moisture and is become moisture state from the washings in the cylinder 1 with air, and a large amount of aperture 1b from all sides that are arranged on cylinder 1 are discharged to outside the cylinder 1.
Be discharged to the outer drying of cylinder 1 and be discharged to the outside of carrying cylinder 2 with air from the outlet in the place ahead of being arranged on carrying cylinder 2 tops.The drying that is discharged to the outside of carrying cylinder 2 dehumidifies through dehumidification portion 6 with air, and 7 heat through the heating part.
Drying by after dehumidifying and the heating is directed into first air channel 9 or second air channel 11 with air through air supplying part 4, blows out once more to cylinder 1.
First air channel 9 has to first blow-off outlet, 8, the second air channels 11 of the rear of cylinder 1 formation opening and has second blow-off outlet 10 that forms opening in the place ahead week side of cylinder 1 towards the place ahead of cylinder 1.
First blow-off outlet 8 in first air channel 9 form air through sectional area greater than the air of second blow-off outlet 10 through sectional area, compare with second air channel 11, the pressure loss is little.Therefore, can use air from first blow-off outlet 8 blows out big air quantity in cylinder 1 drying.
The air of second blow-off outlet 10 in second air channel 11 passes through sectional area through sectional area less than the air of first blow-off outlet 8.Therefore, can in cylinder 1, blow out the drying of comparing the high pressure high wind speed with first blow-off outlet 8 from second blow-off outlet 10 and use air.
Usually, under the situation of drum-type washing drying machine, the place ahead of the cylinder 1 of rotation and the gap between the carrying cylinder 2 form less to prevent the clothing of nipping as much as possible.Therefore, in so little gap, the little blow-off outlet of the pressure loss is set and spatially is difficult to realize, but it is less and blow out second blow-off outlet 10 of the wind of high-voltage high-speed through sectional area ratio that air can be set with big opening.
On the other hand, there is the surplus on the space that first blow-off outlet 8 with big opening is set in the bottom surface side at the rear inner part of cylinder 1.And, as long as use the big lid 26 of opening ratio that constitutes by a large amount of paths hole that can ventilate to cover first blow-off outlet 8, the clothing etc. of just can in first blow-off outlet 8, not nipping.Therefore, the first little blow-off outlet 8 of the pressure loss can be set in the bottom surface at cylinder 1 rear.
In addition; Make cylinder 1 tilt and be rotated under the situation that stirs clothing to the front upper place; Little clothings such as socks, handkerchief, panties focus on the rear inner part of cylinder 1 easily, and long-sleeved vest, underpants, long sleeves cutter shirt, the isometric clothing of long sleeves nightwear focus on the place ahead of cylinder 1 easily.
Thereby, under the state that little clothing and robe thing mix, carry out under the dry situation, when the drying that blows out big air quantity when first blow-off outlet 8 from the rear inner part that is positioned at cylinder 1 use air, drying touched the little clothing of the rear side that concentrates on cylinder 1 earlier with air.
And,, therefore should drying pass little clothing with air and also arrive the robe thing in cylinder 1 the place ahead because little locker room forms a lot of gaps.Therefore, can make little clothing and robe thing all carry out drying efficiently, a lot of winding taken place unlike the robe thing is such, so can be carried out drying with the fold less state in particularly little clothing.
On the other hand; In the stirring in dry run; Done folding easily and be easy to generate the robe thing of fold about sleeve etc. because it focuses on the place ahead of cylinder 1 easily, therefore from second blow-off outlet 10 in the place ahead of being positioned at cylinder 1 blow out dry during with air rate of drying faster.
And; Through making drying from the high pressure high wind speed of second blow-off outlet 10 ejection with air contact robe thing, the robe thing launches easily, and through the dry air wind of using; Therefore the robe thing moves well, can untie the winding of clothing and reduce the effect of generation of fold high.
Air channel switching part 12 possess with the mode pivot suspension that can rotate on the branching portion in first air channel 9 and second air channel 11 valve 12a and valve 12a is rotated the not shown drive division of driving.
And air channel switching part 12 is arranged on the branching portion in first air channel 9 and second air channel 11 in the downstream that is formed at air supplying part 4.This air channel switching part 12 switches to some in first air channel 9 and second air channel 11 with drying with the passage that passes through of air.
When valve 12a turns to a side among Fig. 1 and when closing second air channel 11, first air channel, 9 sides become to be opened, the drying of sending here by air supplying part 4 with air through first air channel 9.
On the other hand, when valve 12a turns to the b side among this figure and when closing first air channel 9, second air channel 11 becomes opens, the drying of sending here by air supplying part 4 with air through second air channel 11.
Middle at circulation air path 13 disposes air supplying part 4 and air channel switching part 12; After passing through outlet 5, dehumidification portion 6, heating part 7 successively from cylinder 1; Send into to cylinder 1 from first blow-off outlet 8 or second blow-off outlet 10 once more and dryly use air, drying is circulated in drum-type washing drying machine with air.
Air supplying part 4 possesses air-supply and uses motor 4b with fan 4a and Air Blast fan.Switched to by air channel switching part 12 under the situation in first air channel 9, air supplying part 4 is so that the air quantity through first air channel 9 makes air-supply rotate with fan 4a greater than the mode of the air quantity in second air channel 11.
In addition, switched to by air channel switching part 12 under the situation in second air channel 11, air supplying part 4 is so that the wind speed of second blow-off outlet 10 through second air channel 11 makes air-supply rotate with fan 4a greater than the mode of the wind speed through first blow-off outlet 8.For example, will be made as through the wind speed of first blow-off outlet 8 about 10m/s, will be made as more than the 50m/s through the wind speed of second blow-off outlet 10.
In addition, the wind speed through first blow-off outlet 8 and second blow-off outlet 10 is not limited thereto, as long as satisfy the condition of the wind speed of second blow-off outlet 10 greater than the wind speed of first blow-off outlet 8, just can be set at wind speed arbitrarily.
The drum-type washing drying machine of this embodiment is following structure: the air quantity through first air channel 9 is greater than the air quantity through second air channel 11; The wind speed of second blow-off outlet 10 through second air channel 11 is greater than the wind speed of first blow-off outlet 8 through first air channel 9; In the drying process process, make air channel switching part 12 move first air channel 9 and second air channel 11 are switched.
Outlet 5 is configured in distance between first blow-off outlet 8 and the outlet 5 relatively greater than the position of the distance between second blow-off outlet 10 and the outlet 5.In other words, outlet 5 is positioned at relatively near second blow-off outlet 10 and away from the position of first blow-off outlet 8.
Therefore, outlet 5 is configured to rear than cylinder 1 more near the place ahead.In addition, outlet 5 also can be arranged on mode from the furthest of first blow-off outlet 8 second blow-off outlet 10 that is in cylinder 1 the place ahead near.
As stated, closely leave first blow-off outlet 8 position far away through outlet 5 being configured in second blow-off outlet 10 from cylinder 1 the place ahead, the distance between first blow-off outlet 8 and the outlet 5 is elongated.
Through such configuration outlet 5, the process of blowing from first blow-off outlet 8 at cylinder 1 rear, the drying that blows out from first blow-off outlet 8 was spreading all in the cylinder 1 before outside outlet 5 is discharged to cylinder 1 with air in large area.Thus, in cylinder 1, clothing contacts with air with dry effectively, can be with few consumes electric power amount drying clothes.
In addition; Even outlet 5 is configured near second blow-off outlet 10; Because the drying from the process of second blow-off outlet 10 air-supply in cylinder 1 the place ahead, blowing out the high pressure high wind speed from second blow-off outlet 10 is used air; Therefore before from outlet 5 is discharged to cylinder 1 outside, dry also can be with air from the arrival rear, the place ahead of cylinder 1.
Thus, dry can variation with contacting not of air and clothing, can keep the drying of utilizing the high pressure high wind speed makes the fold expansion with air effect.
In addition, outlet 5 is configured in the upper side of cylinder 1, can with contact with clothing after drying with air be discharged to effectively the top.In addition, in not having the roller type clothes drying machine of washing function, also can outlet 5 be arranged on the position in addition, top of cylinder 1.On the other hand, in drum-type washing drying machine, owing to receive the influence of washings, therefore expectation is arranged on outlet 5 position of the water level top of washings.
In addition, second blow-off outlet 10 forms opening on the top, the place ahead of cylinder 1.Thus, the clothing that can hold up the rotation through cylinder 1 and move blows the drying of high pressure high wind speed effectively and uses air, and can improve and reduce the effect that fold produces.
In addition, in this embodiment, only be provided with first blow-off outlet 8 in one first air channel 9, but a plurality of first blow-off outlets 8 also can be set.Likewise, show the example of second blow-off outlet 10 that one second air channel 11 only is set, but a plurality of second blow-off outlets 10 also can be set.
Through this structure, can blow the dry air of using to a lot of positions of clothing, and can blow the dry air of using to clothing from all directions, therefore can shorten drying time.
Below carrying cylinder 2, be provided with the damper 34 that carrying cylinder 2 is supported.Damper 34 is because the vibration attenuation of the carrying cylinder 2 of generation when causing making swing roller 1 under the unbalanced state of weight such as the deflection of the clothing in the cylinder 1 of generation such as when dehydration.
Clothing amount test section 15 is installed on damper 34, and this clothing amount test section 15 because the changes in weight of the clothing in the carrying cylinder 2 that is supported etc. and displacement that the axle of damper 34 is subjected to displacement, detects the amount of clothing through detecting on above-below direction.
The drum-type washing drying machine of this embodiment is the structure of carrying out the dehumidifying and the heating of heat pump mode, possesses heat pump assembly 50.
Heat pump assembly 50 possesses: compressor 16, and it compresses cold-producing medium; Radiator 17, it emits the heat that forms the cold-producing medium of HTHP through compression; Restriction 18, it is used to reduce the pressure of high-pressure refrigerant; Heat dump 19, its utilization form low pressure through decompression cold-producing medium reduces phlegm and internal heat from removing on every side; And pipeline 20, it links compressor 16, radiator 17, restriction 18 and heat dump 19 makes the cold-producing medium circulation.
And the heat dump 19 in the heat pump assembly 50 is equivalent to above-mentioned dehumidification portion 6, and radiator 17 is equivalent to above-mentioned heating part 7.
In addition, drum-type washing drying machine is not limited to carry out with heat pump mode the structure of cloth drying.For example, dehumidification portion 6 also can be direct with the water-cooled of drying with airborne water atomization, and heating part 7 also can be a heater.
Below, use Fig. 2 that the circuit structure of the drum-type washing drying machine in this embodiment is described.
As shown in Figure 2, drum-type washing drying machine has control part 70.Control part 70 is kept watch on through the set information of input configuration part 32 input and the operating state of each several part according to the user, and a series of running of controlling in the process relevant with washing, rinsing, dehydration, drying is moved.
For example, the rotation of control part 70 index drum drive motor 3 in drying process, the action of control air supplying part 4, dehumidification portion 6 and heating part 7 is also controlled air channel switching part 12 and is come first air channel 9 and second air channel 11 are switched.
Control part 70 for example by not shown CPU (Central Processing Unit: CPU), stored program ROM (Read Only Memory: read-only storage), when carrying out various the processing random access memory), input/output interface and the bus that their connect constituted RAM (the Random Access Memory: of storage program, data.
In addition, control part 70 have to after first stipulated time of stating and second stipulated time timer 71 that carries out timing.As this timer 71, can use the internal timer that is embedded in control part 70.In addition, as timer 71, also can use and control part 70 time set independently.
In drum-type washing drying machine, carry out rectification through 28 pairs of alternating electromotive forces of rectifier 23, afterwards, carry out smoothing through the smoothing circuit that constitutes by choking-winding 29 and smmothing capacitor 30 and produce direct current power.Then, this direct current power is come to be rotated driving through 22 pairs of drum driven motor 3 of frequency changer circuit as driving electric.
Control part 70 is according to the running indication of 32 inputs from the input configuration part and by the monitor message of the detected operating condition of each test section, the rotation that comes index drum drive motor 3.
Be displayed on the display part 33 from the setting content of input configuration part 32 inputs.And control part 70 is controlled the action of feed water valve 25, draining valve 27, air supplying part 4, dehumidification portion 6, heating part 7 even loads through load driving part 24.
Control part 70 is detected to carrying cylinder 2 washing water supplied by water level detecting portion 31 when washing with rinsing, when the washings with the amount of correspondingly being set by the amount of clothing amount test section 15 detected washings accumulate, closes feed water valve 25.
Drum driven motor 3 for example possesses stator with three phase winding 3a, 3b, 3c and the rotor with the permanent magnet at the two poles of the earth, can constitute the DC Brushless Motor that is provided with three position detecting element 19a, 19b, 19c.Through being rotated control carrying out 22 pairs of drum driven motor 3 of frequency changer circuit that the mode of PWM control constitutes by switch element 22a~22f.
At this, the detected rotor position detection signal of position detecting element 19a~19c is imported into control part 70.Then, control part 70 to frequency conversion drive circuit 21 output control signals, carries out PWM control through connection, the off-state of 21 couples of switch element 22a~22f of frequency conversion drive circuit according to the rotor position detection signal.
Through like this, control part 70 controls are to the energising of three phase winding 3a of stator, 3b, 3c, and the rotor that makes drum driven motor 3 is rotated with the rotating speed of expectation.In addition, the signal condition of the some position detecting element of control part 70 in three position detecting element 19a~19c detects its cycle when changing, and goes out the rotating speed of rotor according to this computation of Period through rotating speed test section 72.
Following action and the action effect that specifies the above drum-type washing drying machine that constitutes.
The generation etc. of the fold in the cloth drying process at first, is described.When in narrow cylinder 1, clothing being carried out drying, produce a lot of folds and residual on the clothing, therefore cause the user to feel discontented.
This is because clothing can't carry out drying under the state that launches fully in narrow cylinder 1.Especially used to produce a lot of folds in the clothings of a lot of cottons, caused dried deleterious.
In cotton fiber; Be present under the intrastitial state at moisture; Can freely move between fiber; Therefore clothing is done folding by the power of machinery even stir clothing through the rotation of cylinder 1, and when then when the direction of launching applies power, crooked part is launched and also can not be formed fold and residual.
But when drying is made progress and intrastitial moisture when reducing to some extent, the adhesion grow between cotton fiber causes the motion variation of fiber.At this moment,, keeps by fiber this state when being done to roll over by the power of machinery easily.
When intrastitial moisture became still less when proceeding dry, even then apply power to the direction of launching, fiber was still kept the state of being done folding and is not launched.This state is called the fixing of fold.Make cloth drying must the phenomenon that fold is fixed such contradiction be taken place when moisture reduces still water evaporates.Thereby make the fixing many more of fold, drying effect is poor more.
In narrow cylinder 1, can't avoid becoming the state that fiber is bent.Therefore, in order to alleviate fold, importantly reduce the quantity of fold and avoid being bent to form acute angle of fiber and fixed solidly.
Thereby the part that expectation is bent with fiber is launched and other part bends this mode, and the position that changes bending continually launches fiber or bending, carries out drying.
On the other hand, under the state that moisture almost disappears carrying out drying under the state that fiber launches, even action mechanical power on bending direction next because interfibrous combination is strong, therefore also is difficult to be bent to form new fold.
According to above content, in drying process, there are the zone of fold easy fixation and the zone that fold is not easy to fix according to the drying regime of clothing.About the zone that the zone and the fold of fold easy fixation is not easy to fix, use the index of aridity to describe through 1 definition of following formula.
The following expression index of aridity (%).
The index of aridity=(quality of the clothing of standard/contain the quality of the clothing of moisture) * 100 (formulas 1)
At this, the quality of the clothing of standard is meant the quality that under the condition of 20 ℃ of temperature, humidity 65%, weighs up with scale.Therefore, when the drying of clothing was made progress to some extent, the quality that contains the clothing of moisture was sometimes compared with the quality of the clothing of standard and is lightened, and the index of aridity (%) exceeds 100% sometimes.
For being the index of aridity of benchmark with the clothing that is made up of the cotton fiber that fold takes place the most easily, roughly 85% (about 85%) to the zone of 100% (about 100%) roughly is the zone of fold easy fixation on the clothing.Be that the index of aridity of benchmark is the zone of the easy fixation of fold on the clothing for 90% (about 90%) roughly to the zone of 100% (about 100%) roughly particularly with the clothing that constitutes by cotton fiber.
In addition,, neither carry out drying equably, the local uneven drying that produces for the drying regime of a clothing.For example, under the situation of long-sleeved blouse, the part drying of oxter is the slowest.
Therefore, usually, be not to be target, but be configured to finish drying process with the index of aridity (for example the index of aridity 102%~105%) that exceeds 100% the state that becomes super-dry so that the index of aridity during dry the end becomes 100%.
Thereby when, forming as lower area during with the drying process zoning according to the index of aridity: just having dewatered afterwards to the index of aridity is the zone of about 90% fold dry incipient stage of being difficult to fix; The generation fold of the index of aridity about 90% to the index of aridity about 100% and its fixing zone that becomes dry mid-term stage how easily; And the index of aridity exceeds 100% and zone that the dry ending phase of fold be difficult to take place.
Therefore, in this embodiment, be made as: in the zone of dry mid-term stage, blow out the wind that clothing is significantly launched and have a high pressure high wind speed of the effect that reduces fold from second blow-off outlet 10 in second air channel 11 and contact clothing.
And be made as: at least one zone in dry incipient stage and dry ending phase, be blown into the wind of big air quantity from first blow-off outlet 8 in first air channel 9.Like this; In drying process; Switch with second air channel 11 of the wind that blows out the high pressure high wind speed with the effect that reduces fold in first air channel 9 through to the wind that blows out big air quantity with few consumes electric power, thereby also realized economizing electrification when fold produces reducing.
Can estimate to obtain the period of the dry incipient stage in the drying process, dry mid-term stage and dry ending phase according to begin elapsed time from drying process.Therefore; In this embodiment; Control part 70 according to timer 71 measured begin elapsed time from drying process; Judge the period of the dry incipient stage in the drying process, dry mid-term stage and dry ending phase, control air channel switching part 12 switched first air channel 9 and second air channel 11 in the suitable moment.
More particularly, control part 70 will from drying process begin to through first stipulated time, for example the index of aridity of the clothing in cylinder reach till 90% during be judged as the dry incipient stage.In addition, control part 70 with first stipulated time through later to through second stipulated time, for example the index of aridity of the clothing in cylinder reach till 100% during be judged as dry mid-term stage.In addition, be judged as dry ending phase during till control part 70 finishes second stipulated time warp later to drying process.
As stated, control air channel switching part 12 switched first air channel 9 and second air channel 11 in the suitable moment in the process of drying process, can reduce the generation of fold thus through an air supplying part 4 effectively.
And little big air quantity carries out dry zone when in the process of drying process, being provided with consumes electric power than high wind speed.Therefore, and all the time the drying of high pressure high wind speed is blowed in the cylinder, or increases by two Air Blast fans in order further to increase air quantity and compare with the situation that motor comes to drive all the time with air, can reduce total consumes electric power amount.
Like this, the drum-type washing drying machine of this embodiment can realize when realizing economizing electrification that the fold of clothing produces few good drying effect.
In addition, in this embodiment, the dry incipient stage in drying process, dry mid-term stage and dry ending phase change cylinder rotation sequential according to the switching instant in the air channel in first air channel 9 and second air channel 11.
This is such as stated, for according to eliminating fold the period of drying, and accelerates wind speed, or improves air quantity and come to carry out efficiently drying, thereby realize energy-saving operation.But, wind to the mode of action of clothing according to separately wind speed (air quantity) and difference.Therefore, with drying stage, to the air supply method of clothing air-supply correspondingly comes index drum 1 through the sequential of the best rotation, will further realize energy-saving operation with this.
Below, describe to the rotation sequential of cylinder 1 with to the relation of the mode of action of clothing.
At first, the dry incipient stage till the index of aridity is about 90%, clothing generation fold is fixing few, therefore comes to carry out efficiently drying through increasing air quantity (wind speed is low).At this moment, prevent because locker room twines and the dry variation that contacts with air and clothing integral body.
Make the direction of rotation of cylinder 1 carry out positive and negative upset to compare short time cycle.Thus, have and clothing is twined tail off, untie the such effect of clothing of being twined.Its result is made as the many patterns of toggle frequency in the dry incipient stage through cylinder being rotated sequential, can suppress the winding of clothing, and can carry out big air quantity and high efficiency dry operating.
Therefore then, at the dry mid-term stage of the index of aridity about 90% to the index of aridity about 100%, fold is easily fixed on the clothing, will carry out drying in air blowing out the drying of having accelerated wind speed (having reduced air quantity).
At this moment, make fold launches, also apply the winding that the wind of high pressure is untied clothing through the part that clothing is twined except act on clothing through the wind that makes the high pressure high wind speed.
Owing to decline is arranged slightly, therefore importantly avoiding during this period drying with the variation that contacts between air and the clothing because of reducing dry (dehumidifying) ability of air quantity as far as possible.
And; In the rotation sequential of the cylinder 1 that the direction of rotation that makes cylinder 1 at short notice as the dry incipient stage is overturn; During the upset front and back constantly of cylinder direction of rotation, can temporarily stop clothing and fallen so a series of motion by picking-up owing to the rotation of cylinder 1.Therefore, exist clothing to accumulate, dryly be difficult to touch the problem that clothing or dry position with air contact clothing concentrate on a part etc. with air in the bottom.
That is, high more with respect to the ratio of direction of rotation upset drying time, that make cylinder 1, dry efficient with air contact clothing descends more, causes prolong drying time.In order to prevent this situation, make the toggle frequency of cylinder direction of rotation and dry incipient stage compare minimizing at dry mid-term stage.
As stated, have through the wind that makes high-voltage high-speed and act on the effect that clothing suppresses fold, winding.Therefore, the direction of rotation of cylinder 1 is overturn suppress fold, winding, therefore can reduce the toggle frequency of cylinder 1.
Therefore, in this embodiment, be made as the dry little cylinder rotary mode of incipient stage of frequency ratio of the direction of rotation upset that makes cylinder 1.Thus, can improve dry contacting efficiency and shorten drying time, can carry out fold simultaneously, twine few dry operating with air and clothing.
In addition; At dry mid-term stage; In case the fold that forms can be fixing fast along with the carrying out of dry (dehumidifying), carry out drying when therefore need during whole, make the drying of high pressure high wind speed contact a large amount of clothings up hill and dale with air as far as possible, prevent that fixing of fold from further carrying out.
Therefore; Through reducing the toggle frequency of cylinder rotation; Prolong the time of cylinder 1 that makes, when will being launched by the clothing of picking-up, also increase the frequency that wind contacted of high-voltage high-speed, improve the effect that fold is launched through the rotation of cylinder 1 to same direction rotation.
In addition, during starting after the direction of rotation upset that just makes cylinder, clothing accumulates the bottom because cylinder 1 stops, therefore in order to hold up the clothing heap that accumulates the bottom and become heavy state, and need be than the big electric power of state that cylinder 1 is rotated.
Therefore,, reduce the consumes electric power amount of drum driven motor 3, and suppress the temperature rising of drum driven motor 3, can carry out energy-saving operation through reducing the toggle frequency of cylinder 1.
Surpass 100% dry ending phase in the index of aridity, with the dry incipient stage likewise, it is fewer that fold is fixed in the situation of clothing, therefore improves dry air quantity (wind speed is low) with air and come to carry out efficiently drying.
About the cylinder rotation, also likewise make direction of rotation carry out positive and negative upset to compare short time cycle with the dry incipient stage, reduce the winding of clothing thus, contact with clothing well, and carry out drying efficiently.Therefore, in dry ending phase cylinder is rotated sequential and be made as the many patterns of toggle frequency.
As discussed above, according to this embodiment, during clothing generation fold, winding, switch dry air quantity, wind speed best with air.In addition, cylinder is rotated sequential and be made as rotary mode like fold, winding and the dry the best with the contacting efficiency raising of air and clothing that suppresses to produce clothing.Thus, can realize province's electrification, realize that simultaneously the fold of clothing produces few good drying effect.
Below, use Fig. 3, Fig. 4, Fig. 5 explain the action of the drum-type washing drying machine under the situation of having used air channel shown in the said figure and cylinder rotation sequential switching instant.
Fig. 3 is the sequential chart of an example of aforesaid and dry incipient stage of expression, dry mid-term stage and dry ending phase corresponding wind channels and cylinder rotation sequential switching instant.
As shown in Figure 3; In drying process; During the dry incipient stage till beginning dry operating to the first stipulated time process; Use air through first air channel 9 that sectional area is big and the pressure loss is little, the drying that blows out big air quantity from first blow-off outlet 8 at cylinder 1 rear contacts clothing with air.
That is, control part 70 control air channel switching parts 12 are opened first air channel, 9 sides, the beginning dry operating.In addition, control part 70 begins side by side to make timer 71 to pick up counting with dry operating, till first stipulated time process, continues to keep the open mode in first air channel 9.
In this case because the pressure loss in first air channel 9 is little, even therefore make Air Blast fan lower with the rotating speed of motor 4b, with few consumes electric power driving air supplying part 4, also can obtain the wind of big air quantity.
Therefore, can realize the shortening of the drying time in the dry incipient stage and the reduction of consumes electric power amount.At this moment, cylinder rotation sequential is made as to compare the pattern that short time cycle makes the positive and negative upset of direction of rotation.
As an example, establish cylinder rotation with cylinder rotation sequential 1 as shown in Figure 4 " 15 seconds (rotating speed 47rpm) of positive direction rotation-stop 3 seconds-opposite spin 15 seconds (rotating speed 47rpm)-stop 3 seconds ... " Such pattern turns round repeatedly.Thus, can suppress to utilize the drying of big air quantity to realize the shortening of drying time and the reduction of consumes electric power amount when clothing twines with air.
And, played for first stipulated time through dry mid-term stage later in that kind as shown in Figure 3 from the beginning dry operating, switch to second air channel 11 by air channel switching part 12, improve the rotating speed of Air Blast fan with motor 4b.
Thus, at dry mid-term stage, see off less than second blow-off outlet 10 of first blow-off outlet 8 through sectional area from air and to make the drying of the high-voltage high-speed that Air Blast fan obtains with the rotation of big rotating speed with motor 4b use air.
That is, control part 70 is from the beginning dry operating when passing through for first stipulated time, and control air channel switching part 12 is opened second air channel, 11 sides, and control air supplying part 4 improves the rotating speed of Air Blast fan with motor 4b.
Afterwards, the control part 70 lasting open modes that keep second air channel 11 are till second stipulated time process.In this case, owing to air clothing is spread out all the time, therefore reduce the generation of fold through the drying of high pressure high wind speed.
At this moment, at dry mid-term stage, cylinder is rotated sequential be made as the pattern that the frequency that makes the direction of rotation upset is less than the dry incipient stage.As an example, establish cylinder rotation with cylinder rotation sequential 2 as shown in Figure 5 " 60 seconds (rotating speed 47rpm) of positive direction rotation-stop 3 seconds-opposite spin 60 seconds (rotating speed 47rpm)-stop 3 seconds ... " Such pattern turns round repeatedly.Thus; Can not make the motion of clothing carry out drying, drying can continue the clothing of contact movement with air in cylinder 1 with stopping, although be the air quantity littler than the dry incipient stage therefore; But shorten drying time as much as possible, can realize the reduction of consumes electric power amount during this period.
And, as shown in Figure 3, in second stipulated time warp dry ending phase later, switch to first air channel 9 by air channel switching part 12.In dry ending phase, the contained amount of moisture of clothing is few, and this few moisture contacts and evaporation needs spended time with air with dry.
Therefore, the drying that need in cylinder 1, send into big air quantity increases dry chance with air and contact with moisture with air, thereby expectation can obtain big air quantity with low consumption electric power.
Therefore, use air through first air channel 9 that sectional area is big and the pressure loss is little, the drying that blows out big air quantity from first blow-off outlet 8 at cylinder 1 rear contacts clothing with air.That is, control part 70 is from the beginning dry operating when passing through for second stipulated time, and control air channel switching part 12 is opened first air channel, 9 sides, and control air supplying part 4 reduces the rotating speed of Air Blast fan with motor 4b.
Afterwards, the control part 70 lasting open modes that keep first air channel 9 are till drying process finishes.In this case because the pressure loss in first air channel 9 is little, even therefore make Air Blast fan lower with the rotating ratio of motor 4b, with few consumes electric power driving air supplying part 4, also can obtain the wind of big air quantity.Therefore, can realize the shortening of the drying time in the dry ending phase and the reduction of consumes electric power amount during this period.
At this moment, with the dry incipient stage likewise, cylinder is rotated sequential is made as the pattern of carrying out positive and negative upset with short time cycle relatively.Through establish cylinder rotation with cylinder rotation sequential 1 as shown in Figure 4 " 15 seconds (rotating speed 47rpm) of positive direction rotation-stop 3 seconds-opposite spin 15 seconds (rotating speed 47rpm)-stop 3 seconds ... " Such pattern turns round repeatedly, can suppress to utilize the drying of big air quantity to realize the shortening of drying time and the reduction of consumes electric power amount with warm braw when clothing twines.
In addition, the cylinder of dry ending phase rotation sequential also can be made as and dry different sequential of incipient stage.For example, also can be made as rotary mode " 30 seconds (rotating speed 47rpm) of positive direction rotation-stop 3 seconds-opposite spin 30 seconds (rotating speed 47rpm)-stop 3 seconds ... "
Through reducing the frequency of upset, the load that might alleviate motor prolongs the life-span of motor.In addition,, therefore exist with the dry incipient stage and compare the trend that is difficult to take place the clothing winding, therefore can reduce the toggle frequency of motor because the drying of clothing is proceeded in dry ending phase.
As stated; This embodiment not only according to clothing be difficult to take place fold, winding during and clothing take place easily fold, winding during come to switch best dry blow-off outlet, air quantity, wind speed with air, also be made as the rotation of cylinder 1 like the generation of the fold that suppresses clothing, winding and improve the rotation sequential of drying the best with the contacting efficiency of air and clothing.Thus, can when realizing economizing electrification, realize the winding of clothing, the few good drying effect of generation of fold.
Fig. 6 is other routine sequential chart of the cylinder rotation sequential 2 in the expression dry mid-term stage shown in Figure 5.Below, the action of the drum-type washing drying machine of the dry mid-term stage under the situation of having used cylinder rotation sequential shown in Figure 6 is described.
Played for first stipulated time through dry mid-term stage later in the beginning dry operating, switch to second air channel 11, improve the rotating speed of Air Blast fan with motor 4b by air channel switching part 12.
Thus, at dry mid-term stage, see off less than second blow-off outlet 10 of first blow-off outlet 8 through sectional area from air and to make Air Blast fan use air with the drying that high rotating speed is rotated the high-voltage high-speed that obtains with motor 4b.
That is, control part 70 is from the beginning dry operating when passing through for first stipulated time, and control air channel switching part 12 is opened second air channel, 11 sides, and control air supplying part 4 improves the rotating speed of Air Blast fan with motor 4b.Afterwards, control part 70 open mode that continues to keep second air channel 11 is till through second stipulated time.
In this case, owing to clothing is spread out all the time through the wind of high pressure high wind speed, so fold reduces.Cylinder rotation sequential during this period is set as with respect to the rotating speed with regulation and makes the dry incipient stage of cylinder 1 rotation make the every pattern at a distance from the stipulated time change of rotating speed.In addition, be made as with the dry incipient stage and compare the pattern that rotating speed is increased.
As an example, establish cylinder rotate to be with cylinder as shown in Figure 6 rotation sequential " positive direction rotation 60 seconds (in detail :)-stopped 3 seconds-opposite spin 60 seconds (in detail :)-stop 3 seconds ... " with rotating speed 47rpm rotation 10 seconds → with rotating speed 55rpm rotation 30 seconds → with rotating speed 65rpm rotation 20 seconds with rotating speed 47rpm rotation 10 seconds → with rotating speed 55rpm rotation 30 seconds → with rotating speed 65rpm rotation 20 seconds The pattern that turns round repeatedly.
At this moment, through making cylinder 1 rotation with the rotating speed with dry incipient stage same degree at first, clothing falls owing to gravity in advance.Afterwards, through making cylinder 1 rotation, present the trend that clothing is attached at the inwall of cylinder 1 with the mode of comparing the rotating speed that increases cylinder 1 gradually with the drying incipient stage.
Thus, can make position change up and down in roller rotating process of the clothing in the cylinder 1,, can in limited scope, make drying contact clothing up hill and dale with air although be the high pressure high wind speed therefore.Its result, can improve dry contacting efficiency with air and clothing shorten drying time, efficiently with the fold expansion of clothing, and can carry out the few drying of fold with low consumption electric power.
In addition, in this embodiment, be illustrated, but the present invention is not limited thereto, also can be applied to not possess the clothesdrier of washing function to the drum-type washing drying machine that possesses washing function and cloth drying function simultaneously.
As the structure example of clothesdrier, can be made as the structure of from drum-type washing drying machine shown in Figure 1, removing washing function.For example; As the clothesdrier that does not possess washing function; Need on carrying cylinder 2, not connect water supply pipe, drainpipe 40, carrying cylinder 2 is constituted the water jacket of simple roller 1, other basic structure is made as identical the getting final product of drum-type washing drying machine with Fig. 1 as the tank of Fig. 1.

Claims (6)

1. clothesdrier, it has:
Cylinder, it accommodates dry object;
Drum driven portion, it is rotated driving to above-mentioned cylinder;
First air channel, it has first blow-off outlet that on above-mentioned cylinder, forms opening;
Second air channel, its have on above-mentioned cylinder form opening and air through sectional area less than the air of above-mentioned first blow-off outlet second blow-off outlet through sectional area;
The air channel switching part, it optionally switches above-mentioned first air channel and above-mentioned second air channel;
Air supplying part, it delivers to above-mentioned first air channel or above-mentioned second air channel with drying with air; And
Control part, it controls above-mentioned drum driven portion,
Wherein, Above-mentioned air supplying part is blown as follows: when having selected above-mentioned first air channel; With big air quantity when having selected above-mentioned second air channel drying is blown out to above-mentioned cylinder from above-mentioned first blow-off outlet with air, when having selected above-mentioned second air channel, compare when having selected above-mentioned first air channel; With the high pressure high wind speed drying is blown out to above-mentioned cylinder from above-mentioned second blow-off outlet with air, and
Above-mentioned control part has been according to having selected above-mentioned first air channel still to select above-mentioned second air channel to control above-mentioned drum driven portion, and switches the rotation sequential of above-mentioned cylinder.
2. clothesdrier according to claim 1 is characterized in that,
Above-mentioned second blow-off outlet forms opening towards the place ahead of above-mentioned cylinder.
3. clothesdrier according to claim 1 and 2 is characterized in that,
Compare when having selected above-mentioned first air channel, above-mentioned control part is reduced in the toggle frequency that makes the direction of rotation upset of above-mentioned cylinder when having selected above-mentioned second air channel.
4. clothesdrier according to claim 1 and 2 is characterized in that,
When having selected above-mentioned second air channel, above-mentioned control part is controlled above-mentioned drum driven portion makes the rotating speed of above-mentioned cylinder every at a distance from the stipulated time change.
5. clothesdrier according to claim 1 and 2 is characterized in that,
The rotating speed of the above-mentioned cylinder when having selected above-mentioned first air channel is compared, and above-mentioned control part improves the rotating speed of the above-mentioned cylinder when having selected above-mentioned second air channel.
6. clothesdrier according to claim 1 and 2 is characterized in that,
Above-mentioned clothesdrier also has: tank in it is included in above-mentioned cylinder, and stores washings; Water supply pipe, it is provided with feed water valve from washings to above-mentioned tank that supply with; And drainpipe, it is provided with the draining valve of discharging the washings in the above-mentioned tank,
Wherein, above-mentioned clothesdrier possesses washing function.
CN2011101392213A 2010-05-26 2011-05-26 Clothes dryer Expired - Fee Related CN102260990B (en)

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