CN102465438B - Drying machine and laundry dryer - Google Patents
Drying machine and laundry dryer Download PDFInfo
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- CN102465438B CN102465438B CN2010105339574A CN201010533957A CN102465438B CN 102465438 B CN102465438 B CN 102465438B CN 2010105339574 A CN2010105339574 A CN 2010105339574A CN 201010533957 A CN201010533957 A CN 201010533957A CN 102465438 B CN102465438 B CN 102465438B
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- warm braw
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Abstract
The invention provides a drying machine and a laundry dryer, which can prevent non-uniform drying of clothes, inhibit air with moisture from being discharged out of the machine to the largest extent based on different drying methods, and reduce the power consumption. The drying machine or the laundry dryer comprises a rotating drum for accommodating the clothes, a motor for driving the rotating drum, an outer tank for accommodating the rotating drum, a box body for supporting the outer tank and a drying device for blowing hot air into the rotating drum. The drying device is characterized by comprising a first drying path for sucking air in the rotating drum, blowing the hot air from the front side of the rotating drum and making the hot air circulate, a second drying path for sucking external air, blowing the hot air into the rotating drum and discharging the air in the rotating drum out of the box body, and a switching mechanism for switching the first drying path and the second drying path.
Description
Technical field
The present invention relates to have drying machine and the washing dryer of the device of drying clothes.
Background technology
The drying of clothing, by utilizing blowing fan and thermal source that the air of high temperature and low humidity (warm braw) is blown in cylinder, makes moisture evaporate from clothing with the temperature that improves clothing, and the moisture evaporated is ejected and carries out outside machine.As the method for removing the moisture evaporated, the exhaust mode (supplying with all the time new air) of discharging with original state is arranged and by the cooling dehumidification mode (making original air circulation) that makes its dewfall and moisture is removed of the moisture evaporated outside washing dryer.Generally, although exhaust mode can reduce power consumption, exist and to discharge to machine outside with moist air and make the problem of the humidity rising in room.
In addition, in order to shorten drying time and reduce power consumption, having the air quantity that increases warm braw or the method that improves the temperature of warm braw.In the washing dryer or drying machine of using at general clothing, its structure blows warm braw for a direction of the swing roller from accommodating laundry to clothing, and discharges warm braw from contrary direction.But, if the amount of clothing increases, be difficult to activity due to clothing in swing roller, thereby the clothing that contacts a side with warm braw is dry rapidly, otherwise the clothing of a contrary side is difficult to contact with warm braw and rate of drying is slower.Therefore, temperature prioritised when with clothing, reach the T2 degree and while finishing to turn round, the rear side clothing is in dry not enough state in temperature; When the mode there is no uneven drying turns round, the problem that exists the temperature of front side clothing too to raise.
So, blow warm braw to improve the washing dryer (or drying machine) of drying efficiency as the multiple directions by from swing roller, patent documentation 1-TOHKEMY 2006-354 communique and the disclosed washing dryer of patent documentation 2-TOHKEMY 2008-259549 communique are arranged.The former washing dryer has a plurality of circulating paths from warm braw to swing roller that supply with, at least one of purge port that is arranged at the warm braw of above-mentioned a plurality of circulating paths is arranged on to the inboard sidewall areas of swing roller, by purge port at least another is arranged on the front side sidewall areas of swing roller.Blowing fan is arranged on each of a plurality of circulating paths, and heating arrangements is arranged at least one of a plurality of circulating paths.The formation of the latter's washing dryer is that its blowing fan is one, changes the warm braw purge port of the front and back of swing roller with switching valve.These drying washing machines are owing to warm braw being blown into to clothing equably, thereby can realize the even few drying of uneven drying.
Although above-mentioned prior art is provided with a plurality of warm braw purge port and can realizes the even few drying of uneven drying, does not consider its drying mode (exhaust mode, dehumidification mode).
In drying mode as above, although the exhaust mode (supplying with all the time new air) of discharging air moistening in swing roller with original state outside machine is arranged and by the cooling dehumidification mode (making original air circulation) that makes its dewfall and moisture is removed of the moisture evaporated, above-mentioned prior art is not considered the reduction of the different different power consumption of considering these modes.
Summary of the invention
The object of the present invention is to provide a kind of uneven drying that can prevent clothing, consider again above-mentioned drying mode difference and as far as possible the moist air of inhibition zone discharge and reduce drying machine or the washing dryer of dry power consumption outside machine.
To achieve these goals, washing dryer of the present invention possesses: the swing roller of accommodating laundry; Drive the motor of this swing roller; The water jacket that holds above-mentioned swing roller; Support the casing of this water jacket; And, to the drying device that blows warm braw in above-mentioned swing roller, it is characterized in that, above-mentioned drying device has: suck the air in above-mentioned swing roller, to blowing warm braw in above-mentioned swing roller and making the first dry path of warm braw circulation; And the suction extraneous air, to the second dry path that blows warm braw and the air in above-mentioned swing roller is discharged outside above-mentioned casing in above-mentioned swing roller, also there is the switching mechanism in switching the above-mentioned first dry path and the second dry path.
Effect of the present invention is, according to the present invention, due to the first dry path had as dehumidification mode, as the second dry path of exhaust mode, and the switching device shifter that switches these first dry paths and the second dry path, thereby can effectively utilize this two kinds of different drying modes.
For example, dry latter half due to contact with clothing after in air contained moisture not so much, if thereby be switched to the second dry path at dry latter half, can discharge outside machine by the moist air of inhibition zone, and can reduce power consumption.
In addition, due in the dry path of switching, change the blowing direction of warm braw, thereby can make warm braw from direction and the contact with clothing different from dry first half, can suppress uneven drying.
The accompanying drawing explanation
Fig. 1 means the stereoscopic figure of drum-type washing drying machine of the present invention.
Fig. 2 is that the casing to drum-type washing drying machine of the present invention carries out partial cutaway to mean in-built stereogram.
Fig. 3 is that the casing to drum-type washing drying machine of the present invention carries out partial cutaway to mean in-built stereogram.
Fig. 4 is that in-built rearview is covered to mean in the back side of dismounting drum-type washing drying machine of the present invention.
Fig. 5 means the side view of the internal structure of drum-type washing drying machine of the present invention.
Fig. 6 is the stereogram that the water jacket of rear portion pipeline is housed.
Fig. 7 is the front view that is provided with the outer capping of anterior warm braw purge port.
Fig. 8 is the cutaway view along the A-A line of the anterior warm braw purge port of Fig. 7.
Fig. 9 means the water jacket of rear portion warm braw purge port and the cutaway view of washing and dewatering groove.
Figure 10 is the front view of the cylinder bottom surface that means, the C-C cross section with Fig. 9.
Figure 11 means the cutaway view of supply and exhaust valve.
Figure 12 means the mobile structural representation of air.
Figure 13 is that existing washing dryer and washing dryer clothing of the present invention are at dried photo.
Figure 14 means the figure of the variation of the clothing temperature of drying process of existing washing dryer and moisture.
Figure 15 means the figure of the variation of the clothing temperature of drying process of washing dryer of the present invention and moisture.
Figure 16 means the cutaway view of inlet valve.
Figure 17 means the mobile structural representation of air.
Figure 18 means the mobile structural representation of air.
In figure:
The 1-casing, 2-water jacket, 2d-outer capping, 3-washing and dewatering groove, 4,28a-motor, 6-guidance panel, 8-device for drying and filtering, 8-door, the 16-water-suppling electromagnetic valve, 27-filter pipeline, 28-blowing unit, 28b-fan guard, the 29-drying duct, 31-heater, the anterior purge port of 32-, 32d-nozzle, the 33-aspirating air pipe, 38-control device, 51-rear portion pipeline, the anterior purge port of 52-, 53-labyrinth sealing, 54-switching valve, 55-air inlet-exhaust valve, 60-inlet valve.
The specific embodiment
Below, use accompanying drawing explanation embodiments of the present invention.
Fig. 1 is the stereoscopic figure of the drum-type washing drying machine of an embodiment of the invention example, Fig. 2 carries out the stereogram of partial cutaway from oblique forward observation for the expression internal structure to casing, Fig. 3 carries out to casing the stereogram that partial cutaway is observed from oblique rear for the expression internal structure, Fig. 4 dismantles the rearview of back side lid for the expression internal structure, Fig. 5 means the side view of internal structure.
The suspension 5 (consisting of helical spring and damper) that water jacket 2 use are fixed on downside on base 1h carries out the vibrationproof support.In addition, the upside of water jacket 2 is supported with the secondary spring (not shown) that is arranged on the girth member of top, with prevent water jacket 2 forwards, backwards direction topple over.
Be provided with at the rear side of detergent container 19 parts that water-suppling electromagnetic valve 16 and water for bathing supply-water pump 17, level sensor (not shown) etc. are associated with water supply.Cover the soft suction hose connector 17a that 1e is provided with the residue water of the water supply hose connector 16a that is connected with water tap, sucking-off water for bathing in the above.Detergent container 19 is connected with water jacket 2, by opening water-suppling electromagnetic valve 16 or running water for bathing supply-water pump 17, to water jacket 2, supplies with washings.
The filter pipeline 27 of the upper right that the top of drying duct 29 is interior be arranged at casing 1 along fore-and-aft direction is connected.The connecting portion with filter pipeline 27 on drying duct 29 tops has air inlet-exhaust valve 55.There is peristome in filter pipeline 27 fronts, drawer type device for drying and filtering 8 is inserted in this peristome.The air that enters filter pipeline 27 from drying duct 29 flow into device for drying and filtering 8 gauze filter 8a and removes the line bits.The cleaning of device for drying and filtering 8 is undertaken by gauze filter 8a is pulled out and taken out to device for drying and filtering 8.In addition, below device for drying and filtering 8 insertion sections of filter pipeline 27, be provided with peristome, this peristome is connected with aspirating air pipe 33, and the other end of aspirating air pipe 33 is connected with the air entry of blowing unit 28.
In the present embodiment, because blowing unit 28 is arranged on the upper right in casing 1, thereby anterior purge port 32 is arranged on the position of the right oblique upper of outer capping 2d, to shorten to as far as possible the distance of anterior purge port 32, thereby the pressure loss of making and distributing of heat reach Min..But because rear portion purge port 52 is arranged on the point-symmetric position basically with the air entry 2a of the drying duct 29 of upper rear portion, thereby the length of rear portion pipeline 51 is longer, easily from 51 heat radiations of rear portion pipeline.Therefore, rear portion pipeline 51 and water jacket 2 are arranged to fit tightly.The heat that so, can reduce the warm braw heated by heater 31 is distributed in the process by rear portion pipeline 51 in casing.Have again, because the cross sectional shape by rear portion pipeline 51 is made the コ font, and the outer peripheral face of open side and water jacket 2 is fitted tightly, the method that forms rear portion pipeline 51 with the outer peripheral face of water jacket 2 has reduced the heat dissipation of pipeline area, thereby can further increase the effect that prevents heat radiation.
Air entry and outlet at water discharge outlet 2b, blowing unit 28 are provided with temperature sensor (not shown).
The invention is characterized in, make wind at a high speed directly and contact with clothing, make the wrinkle of clothing stretch on one side, promote moisture to evaporate from clothing on one side, and according to the purge port that degree is changed warm braw of carrying out of drying, thereby dry inequality reduced, reduction power consumption.For this reason, must produce the blowing unit 28 of wind at a high speed and make this wind directly and anterior purge port 32, the rear portion purge port 52 of contact with clothing.The needed performance of relevant blowing unit will be in aftermentioned.
Below, use Fig. 7, Fig. 8 to describe anterior purge port 32 in detail.Fig. 7 is the front view of the outer capping 2d of anterior warm braw purge port 32 setting units, and Fig. 8 dissects the cutaway view of the anterior purge port 32 meaned with the double dot dash line A-A line of Fig. 7.
In addition, if the overhang of the 32a of export department is excessive, because meeting hinders the activity of clothing in washing and when dry, thereby as shown in Figure 7 nozzle is made to flat shape of slit and made overhang less, and, the surface configuration of peristome 2c and the 32a of export department is changed smoothly.And, make runner 32b and 32c there is no the variation sharply of useless projection and the flow direction, and make to diminish gradually towards the flow area of nozzle 32d.So, can reduce the distinguished and admirable pressure loss produced and fluid sound at a high speed when runner 32b, 32c.
The switching valve 54 be arranged in corrugated pipe connector 30b consists of drive motor 54a and valve body 54b.Drive motor 54a is arranged on corrugated pipe connector 30b with retaining element 54c.By make the rotating shaft 54d rotation that is arranged at valve body 54b end make valve body 54b rotation with drive motor 54a.Be defined as and close switching valve when valve body 54b is positioned to the position shown in Fig. 8, when valve body 54b is positioned to the position of double dot dash line, is defined as and opens switching valve.In the occasion of closing switching valve 54, owing to having closed backside openings 30c, thereby warm braw blows from anterior purge port 32, if open switching valve 54,, because having closed to the air channel of anterior purge port 32, warm braw blows from rear portion purge port 52 by rear portion pipeline 51 from backside openings 30c.
Below, use Fig. 9, Figure 10 to describe the situation of rear portion purge port 52 parts in detail.Fig. 9 is the cutaway view at the rear portion of the water jacket that dissects of the double dot dash line B-B line with Fig. 4 and washing and dewatering groove 3.Figure 10 dissects water jacket 2 and washing and dewatering groove 3, means the cutaway view of the bottom surface of washing and dewatering groove 3 with the C-C line of Fig. 9.
Be provided with rear portion purge port 52 and air entry 2a in the bottom surface of water jacket 2, air entry 2a is positioned at the water jacket bottom, and rear portion purge port 52 is arranged on water jacket top, both with respect to the rotating shaft 4a of motor 4 roughly in point-symmetric position.In addition, the radial position of air entry 2a is in the position near the most peripheral side, and rear portion purge port 52 is positioned in the inner part by comparison.Depend on by ,Bi rear portion, inner circumferential side purge port 52 the teat B53b that is formed with a plurality of ring-types on the outer groove bottom of outer circumferential side in the position than air entry 2a.In addition, be formed with the teat A53a of a plurality of ring-types concentric with teat B53b in the bottom surface of washing and dewatering groove 3 water jacket side.Teat B53b and teat A53a be differently configuration mutually, thereby forms labyrinth sealing 53.Be provided with a plurality of blow vent 3d on the bottom surface of the washing and dewatering groove 3 relative with rear portion purge port 52, blow vent 3d is configured to netted or consists of many apertures, in order to avoid clothing flies out and reduces aeration resistance.In addition, be provided with in the outer part a plurality of aperture 3e in the labyrinth sealing 53 than washing and dewatering groove 3 bottom surfaces.
Like this, by the position that makes rear portion purge port 52 and air entry 32, remotely configure, and between arranges labyrinth sealing, thereby can prevent that the warm braw blowed from rear portion purge port 52 from directly entering air entry 2a, can effectively make the contact with clothing in wind and washing and dewatering groove 3.In addition, because the wind speed of the warm braw blowed from the rear portion purge port reaches the high speed of the degree that the wrinkle that can make clothing stretches, even thereby make clothing stop up blow vent 3d in the situation that put into a large amount of clothings in washing and dewatering groove 3, pushed by wind-force due to clothing and form gap between clothing, because warm braw is easy to enter in washing and dewatering groove 3, thereby also can effectively make wind and contact with clothing.
In the example of present embodiment, make the wind speed of the warm braw that blows from rear portion purge port 52 slower than the wind speed blowed from anterior purge port 32, to reach the degree of the effect (making the effect of clothing expansion) that the wrinkle that do not hinder clothing stretches.Usually, make the bead 23 with many radial ribs is installed on washing and dewatering groove 3, connect the structure of the rotating shaft 4a of motor 4 at the central part of this bead 23.If washing and dewatering groove 3 rotation, just radial rib crosscut rear portion purge port 52 periodically.Therefore, if too fast at the wind speed of rear portion purge port 52, because meeting produces, blow sound of the wind, noise is increased, thereby wind speed is slowed down, suppressed to blow the increase of sound of the wind.
In fact, the nozzle area of rear portion purge port 52 is done larger than the area of the nozzle 32d of anterior purge port 32.Revolution at blowing unit 28 is certain occasion, although the wind wind speed blowed from rear portion purge port 52 is more slack-off than the wind blowed from anterior purge port 32, air quantity increases.Though the moisture caused by wind speed reduces from the effect of clothing evaporation, because the effect raising with increased the moisture evaporation caused by air quantity is cancelled out each other and can not reduce drying efficiency.
The position of facing in the rear portion purge port 52 with bead 23 is provided with blow vent 23a, in the outer groove bottom that covers bead, also is provided with a plurality of aperture 3f, even bead 23 is come under the situation of rear portion purge port 52, warm braw also can enter in washing and dewatering groove 3.In addition, the shape of rear portion purge port 52 slit-shaped longer than the width of the radial rib of bead 23 at circumferencial direction preferably.So, because rear portion purge port 52 can not sealed by the rib of bead 23 fully, thereby warm braw can be imported in washing and dewatering groove 3 effectively.
Figure 11 means the detailed construction of air inlet-exhaust valve 55.Figure 11 is the cutaway view that the double dot dash line D-D line with Fig. 4 dissects.Air inlet-exhaust valve 55 consists of drive motor 55a, valve body 55b and valve seat 55c.The rotating shaft 55d of the central part by making to be arranged at valve body 55b with drive motor 55a rotates to make valve body 55b rotation.As shown in figure 11, will be called and close air inlet-exhaust valve with the state of valve body 55b closed valve seat 55c; As with as shown in double dot dash line, the state of blocking-up drying duct 29 and filter pipeline 27 is called and opens air inlet-exhaust valve.If make air inlet-exhaust valve 55 in open mode, form air entry 56 and exhaust outlet 57.Air entry 56 is opened on the inner space of the upper cover 1e on casing 1 top.Exhaust outlet 57 is connected with discharge duct 58, and leads to indoor.Outlet at discharge duct 58 is provided with filter 59, is used for removing line bits contained in exhaust.
Although flowing of wind during dry operating utilizes the on off state of switching valve 54 and the on off state of air inlet-exhaust valve 55 can realize four kinds of current methods, in the present invention, carry out switching valve 54 and the air inlet-exhaust valve 55 two class runnings that both close or both open.In addition, although flowing of wind in Fig. 1 to Fig. 5 and Fig. 8 to Figure 11, with solid arrow and dotted arrow, mean, for easy understanding, with the structural representation of Figure 12, mean.The situation of at first, both being closed is narrated (solid arrow of Figure 12).If running blowing unit 28, to heater 31 energising, blow warm braw (arrow 41) at a high speed in from nozzle 32d to washing and dewatering groove 3, warm braw and wet contact with clothing, heat and moisture evaporated from clothing clothing.The through hole of air from being arranged at washing and dewatering groove 3 that becomes high temperature and humidity flows to water jacket 2, from air entry 2a, is drawn in drying duct 29, and (arrow 42) flows from bottom to top in drying duct 29.From the cooling water flow of water-cooled desiccant body, fall on the wall of drying duct 29, the air of high temperature and humidity, by with cooling water, contacting and carry out cooling and dehumidifying, becomes dry Cryogenic air and enters filter pipeline 27 (arrow 43).Remove the line bits by the gauze filter 8A be arranged in filter pipeline 27, enter aspirating air pipe 33, by blowing unit 28, sucked (arrow 44).Then, again, by heater 31 heating, be blown into the circulation in washing and dewatering groove 3.Utilize this circulation to form the first drying (circulation) path as dehumidification mode., make washing and dewatering groove 3 with the low speed rotating therebetween, until clothing is risen near nozzle 32d, make warm braw at a high speed directly and contact with clothing.
Secondly, in the situation that both open (dotted arrow of Figure 12), if running blowing unit 28, just the air of casing 1 is inhaled into (dotted arrow 46) filter pipeline 27 from air entry 56.Then, enter aspirating air pipe 33, sucked (dotted arrow 63) by blowing unit, enter rear portion pipeline 51 (dotted arrow 47) from corrugated pipe connector 30b, be directed to the back side of water jacket 2 by the rear portion pipeline, from rear portion purge port 52, be blown in washing and dewatering groove 3 (dotted arrow 48) from the rear side of washing and dewatering groove 3, with the contact with clothing of washing and dewatering groove 3 interior inboards, moisture is evaporated from clothing.Then, air flows to water jacket 2 from the through hole that is arranged at washing and dewatering groove 3, and is pressed into drying duct 29 (dotted arrow 62) from air entry 2a.Air flows from bottom to top and enters discharge duct 58 from exhaust outlet 57 in drying duct 29, removes line with filter 59 and considers backward machine to be worth doing and discharge (dotted arrow 45) outward.Thus, form the second drying (circulation) path as exhaust mode., make washing and dewatering groove 3 with the low speed rotating therebetween, clothing is risen near rear portion purge port 52 wind is directly contacted with clothing.
Drying is carried out as follows.Between the warming up period that the dry initial stage rises in the temperature that makes clothing, for the temperature that makes clothing rises rapidly, importantly to clothing, supply heat as much as possible.Between warming up period, reduce from the moisture of clothing evaporation.
Along with the rising of clothing temperature, because the moisture from the clothing evaporation increases, because heat of gasification makes the rising of clothing temperature slack-off, heating soon reaches balance with heat of gasification, and the temperature of clothing almost keeps constant (constant rate of drying).From the amount of moisture of clothing evaporation starts to increase, open water-suppling electromagnetic valve 16, the water-cooled desiccant body in drying duct 29 is supplied with cooling water, makes to comprise the cooling and dewfall of many humid air of the moisture evaporated, to remove airborne moisture.
If the amount of moisture of clothing tails off, heat of gasification reduces, and the temperature of clothing starts to rise again, if become clothing, there is no moisture, reaches with the essentially identical temperature of warm braw and finishes drying (falling rate of drying).The moment that the temperature that enters the falling rate of drying clothing starts to rise is that aridity reaches near the moment 0.9.In addition, aridity with the weight of drying clothes/drying after the weight definition of clothing.The weight of drying clothes is to be the weight while in 20 ℃, the relative humidity environment that is 65%, clothing having been placed to diel in temperature.
The fundamental formular of the rate of drying of moisture during from material (clothing) surface evaporation means by mathematical expression 1.
(mathematical expression 1)
Qs＝α(Ta-Ts)/γ
Wherein: Qs: rate of drying (kg/m
2h)
α: heat transfer coefficient (KJ/m
2h ℃)
γ: evaporation latent heat (KJ/kg)
Ta: the warm braw temperature (℃)
Ts: the evaporating surface temperature (℃)
In addition, if the surface area on clothing surface is made as to A (m
2), rate of drying Q
a(kg/h) be mathematical expression 2.
(mathematical expression 2)
Q
A＝Qs·A＝α·A(Ta-Ts)/γ
Rate of drying when in addition, moisture is from the inner evaporation of clothing is mathematical expression 3.
(mathematical expression 3)
Qi＝K(Ta-Ts)/γ
Wherein: Qi: rate of drying (kg/m
2h)
K: hot percent of pass (KJ/m
2h ℃)
In addition, hot percent of pass K means with mathematical expression 4.
(mathematical expression 4)
K＝1/(1/α+L/λ)
L: the thickness of cloth (m)
λ: thermal conductivity (KJ/mhK)
Known according to mathematical expression 1, mathematical expression 2, mathematical expression 3, mathematical expression 4, in order to accelerate drying (evaporation) speed, should take following measure:
(1) improve warm braw temperature T a.
(2) improve heat transfer coefficient α.
(3) increase surface area A.
(4) improve thermal conductivity λ.
(5) thickness of attenuate cloth.
Once because the excess Temperature of warm braw can cause the damage to clothing, thereby be advisable it is suppressed to maximum 90 ℃ of left and right.Therefore, it is difficult accelerating rate of drying by the raising temperature.In addition, because the thermal conductivity of cloth and the thickness of cloth are determined by clothing, thereby uncontrollable.0.8 power common due to heat transfer coefficient and wind speed is proportional, thereby can improve heat transfer coefficient by accelerating wind speed.With regard to the surface area of clothing, if being wound around, clothing is bulk, its apparent surface is long-pending reduces.In addition, if be the apparent thick thickening of cloth of bulk, rate of drying reduces.Therefore, to expand as far as possible clothing, be advisable.
These principles can realize by making the wind speed high speed reach 100m/s.Figure 13 is the photo that the state to the dried clothing of scrubbing-and-drying unit with existing scrubbing-and-drying unit and the present embodiment compares.The dry rated capacity of the scrubbing-and-drying unit compared is 7kg.Existing scrubbing-and-drying unit be take air quantity as 1.4m
3/ min, wind speed are that 20m/s is turned round, and the scrubbing-and-drying unit of the present embodiment, under the state of having cut out switching valve 54 and air inlet-exhaust valve 55, take air quantity as 1.65m
3/ min, wind speed are that 100m/s is turned round.The cloth amount is 3kg, and the clothing compared is the cotton pyjamas that very easily produce wrinkle.Existing sample is screwed in and is together strip, and surface area reduces, and cloth increases at the thickness on apparent, has hindered the evaporation of moisture and rate of drying reduces.In contrast, the sample of the present embodiment is the finished product that clothing launches, wrinkle is few.Why wrinkle is that clothing is extended by blast because when clothing is blowed to the high wind of wind speed less.Like this, once clothing extends, because surface area just increases, and can not increased by the overlapping apparent thickness caused of clothing, heat transfer coefficient also can improve, thereby easily evaporation and rate of drying rises of moisture, can reduce the dry electric weight consumed.
But, if the cloth amount increases, because clothing is difficult to activity in washing and dewatering groove 3, because wind does not generally contact with clothing, thereby the drying regime of clothing produces difference with the position of clothing.Figure 14 means is the clothing moisture of heater when dry with strong pattern and the variation of clothing temperature.At dry first half, because the moisture that clothing contains is more, the small volume of clothing, clothing is in the interior easy activity of washing and dewatering groove 3, thereby warm braw generally contacts with clothing, and the temperature of clothing is basically consistent.Along with the carrying out of drying, find that moisture reduces clothing and expands.So, the activity of the fore-and-aft direction of clothing in washing and dewatering groove 3 tails off, and the clothing that is positioned at front side at washing and dewatering groove 3 starts to produce difference with the rate of drying that is positioned at inboard clothing.The clothing of front side contacts dryly rapidly because of good with warm braw, and during entering falling rate of drying from time early, the temperature of clothing starts to rise.With respect to this, because inboard clothing is difficult to contact with warm braw, thereby drying is slower, and the time entered during falling rate of drying is more late, and the time that the temperature of clothing starts to rise also becomes more late.Like this, just produce uneven drying, when when making to be positioned at inboard cloth drying to suitable aridity (aridity from 1.02 to 1.04 left and right), end is turned round, inboard clothing temperature is T2 (80-90 ℃ of left and right), and the clothing of front side is in over-drying state, its temperature rises to T1 (100 ℃ of left and right) and the essentially identical degree of warm braw.
So, adopt strong mode at dry first half heater 31, close switching valve 54 and air inlet-exhaust valve 55, blow high speed winds from anterior purge port 32.Then, at dry latter half, open switching valve 54 and air inlet-exhaust valve 55, heater 31 adopts weak pattern, from rear portion purge port 52, blows warm braw.At dry first half, due to the effect of high speed winds, with high rate of drying, carry out drying.During entering falling rate of drying along with the carrying out of drying, after the clothing substantially dry of front side, from rear portion purge port 52, blow warm braw.Due to warm braw with only use the contact with clothing that is difficult to dry inboard from the warm braw of anterior purge port 32, thereby the drying of inboard clothing is promptly carried out.Dry latter half why heater 31 adopt weak pattern to be because, because the drying at this inboard clothing of moment proceeds to the degree during entering falling rate of drying, fuselage is also heated fully, thereby adopts weak pattern enough for the inboard clothes heater of drying 31.In addition, because the area of the anterior purge port 32 of the Area Ratio of rear portion purge port 52 is large, do not carry out the running of dry latter half if do not change the revolution ground of blowing unit 28, because the wind of comparing with Wind Volume with dry first half carries out drying, thereby can further accelerate rate of drying.Have again, for the air quantity that makes dry first half and dry latter half is identical, also can reduce the revolution of the blowing unit 28 of dry latter half.So, due to the input power that can reduce blowing unit 28, thereby can reduce power consumption.
As mentioned above, due to the drying that can effectively be difficult to the clothing of dry inboard, thereby can suppress useless power consumption, and can prevent the uneven drying of clothing, prevent that the temperature transition of clothing from rising.
Figure 15 means is the variations in temperature of the clothing in the drying of the present embodiment and the variation of moisture.At dry first half, although identical with the variations in temperature of existing drying machine, can know, at the dry latter half that purge port has been switched to rear portion, the temperature of inboard clothing rises sharp and is dry.On the other hand, although the temperature of the front side clothing in there is no warm braw contact decrease, because what problem is drying there is no.Like this, due to can be at dry latter half dry inboard clothing effectively, thereby also can shorten to t2 by the t1 from only with anterior purge port the time drying time, the energy minimizing time also be reduced electric power consumption.
In addition, in order further to reduce electric power consumption, also can disconnect heater 31 at dry latter half.This be because, all very high in the temperature of dry first half clothing and water jacket, washing and dewatering groove 3, and the air themperature in casing 1 also rises.Suck the interior heated air of casing 1 if open air inlet-exhaust valve 55 at dry latter half, carry out adiabatic compression with blowing unit 28 and make temperature further increase.In the occasion of the present embodiment, the revolution of blowing unit 28 is 14000 rev/mins, utilizes blowing fan to make 8 ℃ of left and right of temperature rising.And, obtain heat from water jacket 2 during the rear portion pipeline 51 fitted tightly at the outer peripheral face by being arranged to water jacket 2 due to air and make temperature further increase, even thereby also can blow warm braw from rear portion purge port 52 without heater.The occasion that environment temperature is 20 ℃ around, the temperature of the warm braw blowed from the rear portion purge port is 50 ℃ of left and right the next-door neighbour dry latter half, though, along with the reducing through excess temperature of time, be 35 ℃ of left and right when drying finishes.
Above, though be illustrated from the viewpoint of electric power consumption, the wrinkle aspect of the example of present embodiment when preventing drying is also favourable.That is,, at dry first half, blow from anterior purge port 32 that wind speed is about 100m/s, air quantity is about 1.6m
3the warm braw of/min, by launching clothing and when preventing the clothing wrinkle, it carried out to drying with blast.Yet, if the amount of clothing is too much, wind at a high speed is difficult to the contact with clothing with the inboard that is positioned at washing and dewatering groove 3, can not prevent the wrinkling of inboard clothing.In the moment that is transformed into dry latter half, inboard cloth drying is to the degree entered during falling rate of drying, and aridity is 0.9 left and right.When aridity surpasses 0.9, now to eliminate wrinkle that clothing produced the difficulty that becomes.In the present embodiment, the moment that reaches 0.9 left and right due to the aridity at inboard clothing blows warm braw from rear portion purge port 52, thereby has the effect of the wrinkle expansion that makes inboard clothing.When considering the effect that wrinkle is launched, the wind speed preferably blowed from rear portion purge port 52, air quantity and the warm braw blowed from anterior purge port 32 are same degree.But, due to the rotation of washing and dewatering groove 3, the radial ribbed joint of wind at a high speed and bead 23 touches to produce blows sound of the wind.Therefore, in the present embodiment, make the area of the anterior purge port of Area Ratio of rear portion purge port 52 large, wind speed is set as to 70m/s, air quantity is set as to 1.7m
3/ min, blow sound of the wind with reduction.Even reduce like this wind speed, with the wind speed (10～20m/s) that has general scrubbing-and-drying unit now, relatively wind speed is still very fast, though launch effect than the wrinkle of anterior purge port, slightly descends, and still has enough wrinkles to launch effect.In addition, though to the front side clothing, do not blow warm braw at dry latter half, due to the state drying few at wrinkle, thereby wrinkle does not almost increase in the running of dry latter half.
Yet, in order further to improve drying efficiency, it is also conceivable that and make switching valve 54 in neutral position, from anterior purge port 32 and rear portion purge port 52, this two blows warm braw simultaneously.But, with regard to the ability of the blowing unit 28 of the present embodiment, if will guarantee the wind speed of 100m/s, the air quantity of each purge port is 0.8m
3the degree of/min, with regard to this air quantity, the effect that wrinkle is launched is less, can not obtain the dry mass identical with the present embodiment.If the ability of blowing unit is increased and is twice, although blow and can obtain making quality good by front and back simultaneously, but because the electric power for the blowing unit running also is multiplied, for source power supply (100V, 15A), need to reduce the input power of heater, due to the temperature reduction of warm braw, not very wise move.In addition, because blowing unit maximizes, having to make the box sizes of scrubbing-and-drying unit to maximize, is also problem from the viewpoint that performance (saving space) is set.But, as the thermal source of warm braw, using the occasion of heat pump mode, even also can obtain enough heats because the input power of thermal source is little, thereby blow before and after utilizing simultaneously and also can realize the dry and high-quality drying of high efficiency.
In the example of present embodiment, make in the front and back of washing and dewatering groove 3 purge port respectively is set, and the structure that air entry is.This,, by the purge port before and after changing with switching valve, can realize with single blowing unit, thereby can make compactness and scrubbing-and-drying unit cheaply.
In addition, make with anterior dry (circulation) path of warm braw that blows use of closed loop formation, form with open loop dry (circulation) path of warm braw that rear portion blows use, and change the structure of closed loop and open loop with air inlet-exhaust valve.Be converted to the moment of dry latter half from dry first half, the rear side cloth drying is to the degree entered during falling rate of drying, and the moisture of clothing tails off.Therefore, at dry latter half, air with contact with clothing after contained moisture not so much.Therefore, although dry latter half also can be with the water-cooled dehumidifying in drying duct of closed loop state, what carry out due to dry latter half is the running that running or heater disconnect a little less than heater, thus because of the lower dehumidification rate of warm braw temperature not too high.So adopting and making dry (circulation) path of warm braw is open loop, in casing, sucks dry air, the structure that will contain the Bas Discharged of the moisture evaporated from clothing can finish drying at short notice.Now be released to indoor moisture far fewer than the situation that washings is dried in room, indoor hardly can be moist.
Below, use Figure 16 and Figure 17 not to be released to indoor embodiment to exhaust and describe.There is inlet valve 60 near the connecting portion of drying duct 29 tops and filter pipeline 27.The cutaway view that Figure 16 dissects with the double dot dash line D-D line of Fig. 4 means inlet valve 60 in detail.Inlet valve 60 is by forming with drive motor 60a, valve body 60b and valve seat 60c.The rotating shaft 60d rotation of the end by making to be located at valve body 60b with drive motor makes valve body 60b rotation.As shown in figure 16, will be called and close air inlet-exhaust valve with the state of valve body 60b closed valve seat 60c; As with as shown in double dot dash line, the state of blocking-up drying duct 29 and filter pipeline 27 is called and opens air inlet-exhaust valve.If make air inlet-exhaust valve 60 in open mode, form air entry 61.
Flowing of wind when the structural representation of Figure 17 means dry operating.Both close or both open two classes runnings also to carry out in the present embodiment switching valve 54 and inlet valve.Situation about opening for both (solid arrow of Figure 17), because the embodiment example with above-mentioned is identical, the description thereof will be omitted, and situation about only both being opened (dotted arrow of Figure 17) describes.If running blowing unit 28, the air in casing 1 is from air entry 56 filter by suction pipelines 27 interior (dotted arrow 46).Then, enter aspirating air pipe 33 and be inhaled into (arrow 44) in blowing unit, enter rear portion pipeline 51 (dotted arrow 47) from corrugated pipe connector 30b, be directed into the back side of water jacket 2 at the rear portion pipeline, rear side from rear portion purge port 52 from washing and dewatering groove 3 is blown in washing and dewatering groove 3 (dotted arrow 48), inboard contact with clothing with in washing and dewatering groove 3, make moisture evaporate from clothing.Then, the through hole of air from being arranged at washing and dewatering groove 3 flows into water jacket 2, and a part is discharged to machine from scupper hose 26 by overflow hose 2f (dotted arrow 49) from overfall 2e.Remainder collaborates and discharges to machine from scupper hose 26 by draining valve 25 (dotted arrow 50) and the air-flow from overflow hose 2f from water discharge outlet 2b.Usually, because scupper hose is connected with sparge pipe, air is discharged in sparge pipe and is not discharged to indoorly, thereby can prevent the increase of indoor moisture.
Although the example of embodiment as above forms by closed loop dry (circulation) path of warm braw that front portion blows use, form by open loop dry (circulation) path of warm braw that rear portion blows use, but adopt contrary formation also can obtain identical effect.The Air Flow of this situation is illustrated in the structural representation of Figure 18 (structure is identical with the situation shown in Figure 12).Operating as follows of this situation circulates, and dry first half blows warm braw from rear portion purge port 52, and dry latter half blows warm braw from anterior purge port 32.Blow the occasion of warm braw from rear portion purge port 52, if open switching valve 54, close inlet valve 55, air is mobile as shown in the dotted arrow in figure.If running blowing unit 28, to heater 31 energisings, from corrugated pipe connector 30b, enter rear portion pipeline 51 (dotted arrow 47), be directed into the back side of water jacket 2 at the rear portion pipeline, rear side from rear portion purge port 52 from washing and dewatering groove 3 is blown in washing and dewatering groove 3 (dotted arrow 48), inboard contact with clothing with in washing and dewatering groove 3, make moisture evaporate from clothing.The through hole of air from being arranged at washing and dewatering groove 3 that becomes high temperature and humidity flows into water jacket 2, from air entry 2a, is inhaled in drying duct 29, and (dotted arrow 62) flows from bottom to top in drying duct 29.Utilization is arranged at the water-cooled desiccant body cooling and dehumidifying in drying duct 29 and becomes dry Cryogenic air and enter filter tube road 27 (dotted arrow 67).Enter into aspirating air pipe 33 by being arranged at after filter pipeline 27 interior gauze filter 8a remove the line bits again, sucked by blowing unit 28, again heated by heater 31, be blown in washing and dewatering groove 3.
The occasion that blows warm braw from anterior purge port 32 is closed switching valve 54 and is opened inlet valve 55.If running blowing unit 28, the air in casing 1 is inhaled in filter pipeline 27 (arrow 65) from air entry 56.Then, by filter 8, blowing unit 28, heater 31, from anterior purge port 32, enter in washing and dewatering groove 3 (arrow 41).Front side contact with clothing with in washing and dewatering groove 3, make moisture evaporate from clothing.Then, the through hole from being arranged at washing and dewatering groove 3 flows into water jacket, from air entry 2a, is pressed in drying duct 29 (arrow 42).Flow from bottom to top in drying duct 29 and enter into discharge duct 58 from exhaust outlet 7, removing line by filter 59 and consider backward machine to be worth doing and discharge (arrow 64) outward.
Above, according to the present embodiment, by converting dry (circulation) path of warm braw that is formed first half by closed loop to, formed dry (circulation) path of warm braw of latter half by open loop, the discharge of air outside machine that can the inhibition zone moisture, and can reduce power consumption.In addition, due to when changing with dry path, change the blowing direction of warm braw, thereby, can make warm braw from direction and the contact with clothing different from dry first half, can also suppress uneven drying.
In addition, owing in dry operating, warm braw at a high speed directly being blown on clothing, thereby the raising of the heat transfer coefficient of clothing and wind, warm braw is heats laundry effectively.In addition, because wind speed is high, wind easily with contact with clothing in swing roller inside.
Have again, due to the latter half dry from purge port be blown into wind, thereby promoted the drying in the clothing of swing roller inboard can prevent uneven drying, and can realize the shortening of drying time and the minimizing of power consumption.
In addition, the temperature of dry latter half clothing fully rises, from purge port be blown into the occasion of wind, can reduce power consumption by heating arrangements being carried out to weak running.Perhaps, by stopping the energising of heating arrangements, suck at the air of the heated box house of dry first half from air-breathing position and be blown into clothing, owing to not using heating arrangements also can supply with warm braw, thereby can further reduce power consumption.
In addition, dry latter half from purge port be blown into the occasion of warm braw, due to the air that sucks the drying in casing, and the wet air in swing roller is discharged outside casing, thereby moisture can, more effectively from removing, can more effectively reduce power consumption.So, due to the temperature rising that can prevent because of the over-drying clothing caused of clothing, thereby can also suppress the damage to clothing.
And, because the wind speed of rear purge port is lower than the wind speed of front purge port, thus can be reduced in from the wind that blows of purge port produce while contacting with the base plate of swing roller blow sound of the wind.
Have again, due to the position relationship by suction inlet and purge port be arranged in the middle of across the rotating shaft of swing roller and away from position, thereby can prevent from the wind that blows of purge port with contact with clothing, from suction inlet, do not suck, the clothing of dry swing roller inboard effectively.
Claims (11)
1. a washing dryer, possess: the swing roller of accommodating laundry; Drive the motor of this swing roller; The water jacket that holds above-mentioned swing roller; Support the casing of this water jacket; And, to the drying device that blows warm braw in above-mentioned swing roller, it is characterized in that,
Above-mentioned drying device has: from the suction inlet air amount of the back side that is arranged at above-mentioned swing roller, blow warm braw from the front side of above-mentioned swing roller and make the first dry path of warm braw circulation; And the suction extraneous air, the second dry path that blows warm braw and the air in above-mentioned swing roller is discharged to above-mentioned casing from above-mentioned swing roller rear side,
The switching mechanism that also there is switching the above-mentioned first dry path and above-mentioned the second dry path.
2. washing dryer according to claim 1, is characterized in that,
There is the air of flow in the above-mentioned first dry path or the above-mentioned second dry path and heated, at least can be with the heating arrangements of two-stage control,
In the initial stage of dry operating, utilize above-mentioned switching mechanism to switch to the above-mentioned first dry path, the output of above-mentioned heating arrangements is controlled and made it stronger,
From dry operating midway, utilize above-mentioned switching mechanism to switch to the above-mentioned second dry path, a little less than the output of above-mentioned heating arrangements is controlled and made it.
3. a washing dryer, possess: the swing roller of accommodating laundry; Drive the motor of this swing roller; The water jacket that holds above-mentioned swing roller; Support the casing of this water jacket; And, to the drying device that blows warm braw in above-mentioned swing roller, it is characterized in that,
Above-mentioned drying device has: the suction inlet that is arranged at the back side of above-mentioned swing roller; Suck air in above-mentioned swing roller and by the wind pushing mechanism of its discharge from this suction inlet; Be arranged at the suction and discharge switching mechanism between this wind pushing mechanism and above-mentioned suction inlet; Be arranged at the heating arrangements of the discharge side of above-mentioned wind pushing mechanism; Be arranged at a plurality of purge port in the downstream of this heating arrangements; And be arranged between above-mentioned heating arrangements and above-mentioned a plurality of purge port and switch the switching mechanism that blows destination of above-mentioned warm braw,
Above-mentioned a plurality of purge port at least has: purge port blowing in from the front side of above-mentioned swing roller to swing roller; And from the air-supply of the rear side of above-mentioned swing roller purge port,
Blow the occasion of warm braw in purge port from above-mentioned, to suck the mode again be blown in above-mentioned swing roller after the air in above-mentioned swing roller, make the warm braw circulation; Blow the occasion of warm braw in purge port from above-mentioned, be blown in above-mentioned swing roller after utilizing above-mentioned suction and discharge switching mechanism to suck extraneous air, and the air in above-mentioned swing roller is discharged to casing from above-mentioned suction and discharge switching mechanism.
4. a washing dryer, possess: the swing roller of accommodating laundry; Drive the motor of this swing roller; The water jacket that holds above-mentioned swing roller; The drainage mechanism that the washings that accumulate in this water jacket are carried out to draining; Support the casing of above-mentioned water jacket; And, to the drying device that blows warm braw in above-mentioned swing roller, it is characterized in that,
Above-mentioned drying device has: the suction inlet that is arranged at the back side of above-mentioned swing roller; Suck air in above-mentioned swing roller and by the wind pushing mechanism of its discharge from this suction inlet; Be arranged at the suction mechanism between this wind pushing mechanism and above-mentioned suction inlet; Be arranged at the heating arrangements of the discharge side of above-mentioned wind pushing mechanism; Be arranged at a plurality of purge port in the downstream of this heating arrangements; And be arranged between above-mentioned heating arrangements and above-mentioned a plurality of purge port and switch the switching mechanism that blows destination of above-mentioned warm braw,
Above-mentioned a plurality of purge port at least has: purge port blowing in from the front side of above-mentioned swing roller to swing roller; And from the air-supply of the rear side of above-mentioned swing roller purge port,
Blow the occasion of warm braw in purge port from above-mentioned, to suck the mode again be blown in above-mentioned swing roller after the air in above-mentioned swing roller, make the warm braw circulation; Blow the occasion of warm braw in purge port from above-mentioned, be blown in above-mentioned swing roller after utilizing above-mentioned suction and discharge switching mechanism to suck extraneous air, and the air in above-mentioned swing roller is discharged to casing from above-mentioned drainage mechanism.
5. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Above-mentioned heating arrangements at least can be exported with two-stage control, in the initial stage of dry operating, the output of above-mentioned heating arrangements is controlled and is made it stronger, and from above-mentioned, purge port blows warm braw; From dry operating midway, a little less than the output of above-mentioned heating arrangements is controlled and made it, from above-mentioned, purge port blows warm braw.
6. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Control device is switched on to above-mentioned heating arrangements in the initial stage of dry operating, and from above-mentioned, purge port blows warm braw; From dry operating midway stop the energising to above-mentioned heating arrangements, purge port air-supply or blow warm braw from above-mentioned.
7. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Make the wind speed of above-mentioned rear purge port slower than the wind speed of above-mentioned front purge port.
8. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Above-mentioned suction inlet is arranged on the position of separating with above-mentioned rear purge port across the rotating shaft of above-mentioned swing roller.
9. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Above-mentioned wind is arranged to the outer surface near above-mentioned water jacket from switching mechanism to the air channel of purge port above-mentioned.
10. according to the described washing dryer of claim 3 or 4, it is characterized in that,
Above-mentioned suction and discharge switching mechanism or suction mechanism are arranged on the top in above-mentioned casing.
11. a drying machine possesses: the swing roller of accommodating laundry; Drive the motor of this swing roller; The water jacket that holds above-mentioned swing roller; Support the casing of this water jacket; And, to the drying device that blows warm braw in above-mentioned swing roller, it is characterized in that,
Above-mentioned drying device has: from the suction inlet air amount of the back side that is arranged at above-mentioned swing roller, blow warm braw from the front side of above-mentioned swing roller and make the first dry path of warm braw circulation; And the suction extraneous air, the second dry path that blows warm braw and the air in above-mentioned swing roller is discharged to above-mentioned casing from above-mentioned swing roller rear side,
The switching mechanism that also there is switching the above-mentioned first dry path and the second dry path.
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| CN2010105339574A CN102465438B (en) | 2010-10-29 | 2010-10-29 | Drying machine and laundry dryer |
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| CN102465438B true CN102465438B (en) | 2013-12-11 |
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| CN104514114B (en) * | 2013-09-03 | 2017-10-27 | Lg电子株式会社 | Clothes treatment device |
| CN104514136B (en) * | 2013-09-27 | 2018-05-01 | 海尔集团公司 | A kind of condensing type clothes dryer and clothes-drying method with air door switching |
| JP6736054B2 (en) * | 2016-05-23 | 2020-08-05 | 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． | Washing and drying machine |
| JP7048932B2 (en) * | 2017-11-22 | 2022-04-06 | 青島海爾洗衣机有限公司 | Washing and drying machine |
| CN110273267B (en) * | 2018-03-16 | 2023-05-16 | 青岛海尔洗衣机有限公司 | Pipeline assembly and clothes treatment equipment comprising same |
| CN110273268B (en) * | 2018-03-16 | 2023-07-21 | 青岛海尔洗衣机有限公司 | Clothes treating apparatus |
| CN110924060B (en) * | 2018-09-19 | 2022-07-05 | 合肥美的洗衣机有限公司 | Clothes processing device, control method thereof, control device and readable storage medium |
| CN109944045B (en) * | 2019-02-19 | 2022-06-17 | 青岛胶州海尔洗涤电器有限公司 | Air exhaust structure of clothes drying equipment and thread scrap cleaning method |
| JP2021069528A (en) * | 2019-10-30 | 2021-05-06 | 日立グローバルライフソリューションズ株式会社 | Washing machine |
| KR20230124653A (en) * | 2021-02-08 | 2023-08-25 | 엘지전자 주식회사 | clothes handling device |
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| JP2002066197A (en) * | 2000-08-30 | 2002-03-05 | Tokyo Gas Co Ltd | Clothing dryer with ventilating function |
| CN201071469Y (en) * | 2006-02-09 | 2008-06-11 | 株式会社东芝 | Clothes drier |
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| JPH0272561A (en) * | 1988-09-06 | 1990-03-12 | Fuji Electric Co Ltd | Manufacture of molten carbonate fuel cell |
| JPH0972561A (en) * | 1995-09-04 | 1997-03-18 | Sekisui House Ltd | Ventilating/heating apparatus for bath room |
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| JP2002066197A (en) * | 2000-08-30 | 2002-03-05 | Tokyo Gas Co Ltd | Clothing dryer with ventilating function |
| CN201071469Y (en) * | 2006-02-09 | 2008-06-11 | 株式会社东芝 | Clothes drier |
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