CN100562623C

CN100562623C - Clothesdrier

Info

Publication number: CN100562623C
Application number: CNB2007100861655A
Authority: CN
Inventors: 户崎宗; 川端真一郎
Original assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2006-03-03
Filing date: 2007-03-05
Publication date: 2009-11-25
Anticipated expiration: 2027-03-05
Also published as: CN101029449A; KR100822093B1; TWI339697B; JP4612563B2; JP2007229377A; KR20070090802A; TW200745406A

Abstract

Problem of the present invention is, providing a kind of makes air outside the ventilation road from being arranged on the air entry on the ventilation road, air inversion ground during with dry operating is by the evaporimeter of heat pump, be discharged to the clothesdrier of machine exterior from the air draft road, wherein, this clothesdrier not only can be caught cotton thread when dry operating, also the velveteen that this can not caught is discharged to machine exterior when cooling operation.The filter (70) of catching velveteen is arranged on the upstream side of air flow (arrow A) ventilation road (51), when more making dry running dry up than the part that branches out cooling air draft road (61).Like this, the air flow when air can be with dry operating is upstream by filter (70), so not only can catch velveteen when dry operating, also the velveteen that captures can be discharged to machine exterior when the cooling operation.

Description

Clothesdrier

Technical field

The present invention relates to have the clothesdrier of the heat pump that cloth drying uses.

Background technology

In the past, in clothesdrier, the effect good because of drying property, that have energy savings (energy) of the clothesdrier with heat pump (heat pump) that cloth drying uses causes people's attention.This clothesdrier with heat pump, wherein, make air in the hothouse of taking in clothing by being equipped with heat pump evaporimeter and the ventilation road of condenser circulate, by wherein evaporimeter air is carried out cooling and dehumidifying, by condenser air is heated, make it then to be back in the hothouse.Then, the air that has absorbed moisture from clothing is circulated, so little by little with cloth drying the ventilation road.

Thus, reclaim the moisture that produces when making cloth drying by evaporimeter, the latent heat that will at this moment absorb by compressor is transformed into the refrigerant state of high temperature, reuses as the energy that air is heated at condenser.Like this, except externally having heat release loss seldom, can almost there be off-energy ground to utilize again.Therefore, can the good drying of implementation efficiency.

Subsequently, in Japanese kokai publication hei 9-56992 communique, a kind of dry rinsing maching is disclosed with respect to this structure, wherein, the part between evaporimeter and condenser is blocked above-mentioned ventilation road, and open on the air draft road that will branch out from the ventilation road, the air entry that will be arranged on the ventilation road is opened simultaneously, make the air outside the ventilation road pass through above-mentioned evaporimeter, be discharged to machine exterior, freezed in the spaces such as washroom that are provided with clothesdrier like this from the said exhaust road from this air entry.

When clothing was carried out drying, velveteen (lint) can be scattered from clothing.If in above-mentioned existing clothesdrier, do not have the filter of catching velveteen, then this velveteen will carried by the air that flows out from hothouse when the dry operating and the evaporimeter by being equipped with heat pump and the ventilation road of condenser, so can hinder air to flow attached on these evaporimeters and the condenser.In addition, also can hinder contact (heat exchange) of these evaporimeters and condenser and air.

Therefore, generally the evaporimeter on ventilation road and condenser set part, particularly than the evaporator arrangement part of upstream side wherein more by the upstream side place, be provided with the filter (filter) of catching velveteen.

Relative therewith, the application's inventor had developed a kind of clothesdrier before the present invention, wherein, on above basis, set the more close upstream side punishment of part expenditure said exhaust road from the ratio evaporimeter on ventilation road, make air outside the ventilation road from being arranged on the air entry on the ventilation road, the air flow during with dry operating passes through evaporimeter upstream, be discharged to machine exterior from the air draft road, thereby can freeze the space that is provided with clothesdrier.Figure 5 illustrates this structure.

In Fig. 5,1 expression hothouse; 2 expression ventilation roads; The evaporimeter of 3 expression heat pumps; The condenser of 4 expression heat pumps; Pressure fan is used in 5 expression circulations, and it makes air the circulating by ventilation road 2 like that shown in the solid line arrow A of hothouse 1; 6 expression air draft roads; 7 expression air entries; The turnover panel (dumper) that 8 expressions are switched the ventilation between ventilation road 2 and the air draft road 6; 9 expression air draft pressure fans, its make the outer air in ventilation road 2 shown in dotted arrow B like that from air entry 7, the air flow during with dry operating passes through evaporimeter 3 upstream, is discharged to machine exterior from air draft road 6.

In this clothesdrier shown in Figure 5, the filter 10 of catching velveteen is arranged on ventilation road 2 as shown like that, evaporimeter 3 set part with respect to dry operating the time air flow (arrow A) upstream side dead ahead part on (air flow with respect to dry operating the time is dead astern, the downstream part by the air draught (arrow B) of evaporimeter 3 upstream), the velveteen L that is caught when the dry operating by this filter 10 like this, when cooling operation, under the effect of the air draught of the air flow adverse current with dry operating the time, can peel off and be discharged to machine exterior from filter 10 with the air that will be discharged to machine exterior (cold wind).

Summary of the invention

The present invention invents in view of the foregoing, its purpose is to provide a kind of ratio evaporimeter from the ventilation road to set part more by upstream side punishment expenditure air draft road, make air outside the ventilation road from being arranged on the air entry on the ventilation road, air flow during with dry operating passes through evaporimeter upstream, be discharged to the clothesdrier of machine exterior from the air draft road, wherein, this clothesdrier not only can be caught velveteen when dry operating, also the velveteen that captures can be discharged to machine exterior when the cooling operation.

In order to reach above-mentioned purpose, this clothesdrier, it is characterized in that: constitute by hothouse and ventilation road, described ventilation road is connected between the air supply opening and outlet of this hothouse, portion is equipped with evaporimeter and the condenser that constitutes heat pump within it, make above-mentioned evaporimeter at above-mentioned discharge oral-lateral, above-mentioned condenser at above-mentioned supply oral-lateral; And, this clothesdrier can carry out dry operating and cooling operation selectively, described dry operating makes the air in the above-mentioned hothouse circulate by above-mentioned ventilation road, thus the clothing in the hothouse is carried out drying, described cooling operation will be from above-mentioned ventilation road, setting part than above-mentioned evaporimeter more opens by the air draft road that the part of upstream side branches out, air entry on being arranged on the ventilation road obtains the air outside the ventilation road, air flow adverse current when making it with above-mentioned dry operating, and pass through contiguously with the heat-exchange surface of above-mentioned evaporimeter, outside the said exhaust road is discharged to the ventilation road; Wherein, the filter of catching velveteen is set in the above-mentioned ventilation road, than the upstream side the more close air flow during with respect to above-mentioned dry operating of the branch location on said exhaust road.

According to said apparatus, with the filter of catching velveteen be arranged in the ventilation road, than the part that branches out the air draft road upstream side the air flow by with respect to dry operating time the more, not only can catch velveteen like this when dry operating, also the velveteen that this can not captured is discharged to machine exterior when cooling operation.

Description of drawings

Fig. 1 is a vertical profile side view among first embodiment of expression clothesdrier of the present invention, the air flow during dry operating.

Fig. 2 is the looping construct figure that constitutes the representative heat pump of clothesdrier.

Fig. 3 is the amplification vertical profile side view of major part of first embodiment of expression clothesdrier of the present invention.

Fig. 4 is a vertical profile side view among first embodiment of expression clothesdrier of the present invention, the air flow during cooling operation.

Fig. 5 is the vertical profile side view of the clothesdrier developed before the present invention of expression present inventor.

Label declaration

23 expression swivelling chutes (hothouse), 51 expression ventilation roads

54 expression evaporimeters, 55 expression condensers

58 expression heat pumps, 61 expression air draft roads

62 express oral area 65 expression air entries

70 expression filters

The specific embodiment

Below, referring to figs. 1 through Fig. 3 the first embodiment of the present invention is described.

At first, figure 1 illustrates as the scrubbing-and-drying unit of a concrete example of clothesdrier, the particularly unitary construction of transverse axis rotary drum-type scrubbing-and-drying unit, be equipped with tank 22 in the inside of shell 21, be equipped with cylinder in the inside of tank 22, be swivelling chute 23.

Above-mentioned tank 22 and swivelling chute 23 all are cylindric, and the end face portion in (left side among the figure) has their

peristomes

24,25 separately in the front side.Wherein, the peristome 25 of swivelling chute 23 is used to pick and place washings (clothing), and the peristome 24 of tank 22 is centered around around it.In addition, the peristome 24 of tank 22 is connected by the peristome 26 that bellows (bellows) 27 and washings on the front face that is formed on shell 21 pick and place usefulness, can be provided with door 28 on the peristome 26 of shell 21 with opening and closing.

On swivelling chute 23, and around the peristome 25, be provided with for example spin balancing device of liquid sealing type (rotation balancer) 29, and go up porose 30 (only the illustrating a part) of formation in roughly all zones of all sidepieces (cell body portion).Work as the limbers when when washing and dehydration in this hole 30, when drying as air vent work.In addition, the outstanding a plurality of baffle plates (baffle) 31 that are provided with on the inner surface of all sidepieces of swivelling chute 23 form a plurality of warm braw introducing ports 32 on the end face portion of the rear side of swivelling chute 23, and they are configured to ring-type with the centres at this place.

Relative therewith, on tank 22, be formed with warm braw outlet 33 on the top (part of the top of above-mentioned peristome 24) of the end face portion of front side, on the top of the end face portion of rear side, relatively form warm braw inlet 34 with the rotational trajectory of above-mentioned warm braw introducing port 32.In addition, rear portion in the bottom of tank 22 is formed with water discharge outlet 35, on this water discharge outlet 35, be externally connected with draining valve 36, and then on draining valve 36, connect scupper hose (drain hose) 37, thus the water in the tank 22 is discharged to machine exterior at tank 22.

In the back side of tank 22 one motor (motor) 38 is installed, makes its outstanding the entering in the tank 22 of rotating shaft 39, the central part of the end face portion of the rear side of above-mentioned swivelling chute 23 is installed on this leading section.Like this, swivelling chute 23 is supported can with tank 22 coaxial rotations.And, tank 22 by a plurality of suspensions (suspension) 40 (only illustrating) resiliency supported on above-mentioned shell 21, the direction of principal axis that this support form is a tank 22 becomes low skewed in the transverse axis shape of fore-and-aft direction and preceding high back, therefore, the swivelling chute 23 that is supported on as described above in this tank 22 also becomes identical state.

Motor 38 is slim external-rotor-type brushless direct current motor (outer rotortype DC brushless motor) in detail, comes work as the drive unit that makes swivelling chute 23 rotations.

Dispose base plate 41 in (on the bottom surface of shell 21) below the tank 22, on this base plate 41, dispose ventilation shaft (airflow duct) 42.This ventilation shaft 42 has inlet scoop 43 on the top of leading section, and the warm braw outlet 33 of above-mentioned tank 22 is connected with this inlet scoop 43 via return air duct (air-reflow duct) 44 and connection flexible pipe 45.And, be configured in the left side of the peristome 24 of above-mentioned tank 22 return air duct 44 circuitous.

On the other hand, be provided with the outer cover (casing) 47 of circulation, the export department 48 of this outer cover 47 via connecting flexible pipe 49 and steam line 50, is connected with the warm braw inlet 34 of above-mentioned tank 22 with pressure fan 46 in the rearward end of ventilation shaft 42.And, be configured in the left side of above-mentioned motor 38 steam line 50 circuitous.

As a result, by return air duct 44, connect flexible pipe 45, ventilation shaft 42, circulation with the outer cover 47 of pressure fan 46, connect flexible pipe 49, steam line 50, be arranged to ventilate road 51 thereby the warm braw outlet 33 of above-mentioned tank 22 is connected with warm braw inlet 34.

And above-mentioned circulation is the centrifugal fan (centrifugal fan) that has centrifugal impeller 52 in the inside of outer cover 47 with pressure fan 46 in detail, has the motor 53 that makes these centrifugal impeller 52 rotations in the outside of outer cover 47.

Then, in ventilation road 51, the inside of ventilation shaft 42, forwardly dispose evaporimeter 54, dispose condenser 55 at the rear portion.These evaporimeters 54 and condenser 55 all do not have detail map to illustrate, but all form at refrigerant runner pipe (refrigerant circulation pipe) and upward be equipped with the band fin tubular (fin-tube type) that a plurality of fin (heat exchanger fin) form with tiny intercept (pitch), its heat exchange is good, and stream passes through between these fin through the wind of above-mentioned ventilation shaft 42 as described later.

And then evaporimeter 54 and condenser 55 have constituted heat pump 58 with compressor shown in Figure 2 56 and choke valve (the particularly choke valve of electronic type) 57.In this heat pump 58, by tube connector 59, thereby their circulations are connected the formation kind of refrigeration cycle according to the order of compressor 56, condenser 55, choke valve 57, evaporimeter 54, by compressor 56 work, make the refrigerant circulation.

And then, on the front face that sets upstream side partly as evaporimeter 54 of above-mentioned ventilation shaft 42, form connected entrance 60, and from the mode than front face (evaporimeter 54 sets the upstream side of the part) branch of the more close above-mentioned ventilation shaft 42 of this connected entrance 60 air draft road 61 to be set.Forwards extend earlier more upward the bottom that this air draft road 61 is provided in the above-mentioned shell 21, and directed forward, therefore, thus export department 62 directed forward facing machine outsides.In addition, this export department 62 is provided with flashboard (shutter) 63.And, flashboard 63, in detail the bottom by fulcrum 64 support can before and after rotation, thereby be rotated and can export department 62 be opened and closed by the power of the drive unit that has omitted illustrated motor or electromagnet etc., all export department 62 is closed during except cooling operation described later.

On the other hand, in ventilation road 51, on the upper wall as the pars intermedia of the ventilation shaft 42 of the part between evaporimeter 54 and the condenser 55, be formed with air entry 65, in addition, be provided with as the above-mentioned connected entrance 60 of the inlet portion on air draft road 61 and switch turnover panel (switch dumper) 66.This switches turnover panel 66, the upper end is supported to such an extent that can rotate front and back by fulcrum 67 in detail, be rotated by the power that has omitted drive units such as illustrated motor or electromagnet, thereby carry out work as the wind path switching device shifter, switch opening, close and then switching opening, closing of air draft road 61 of above-mentioned connected entrance 60, switch the closing, open and then switch closing, opening of ventilation road 51 of inlet scoop 43 of above-mentioned ventilation shaft 42 simultaneously.

And then air draft road 61 is provided with air draft pressure fan 68.This air draft is a cross flow fan with pressure fan 68 in this case, internal configurations on air draft road 61 has a plurality of long and narrow blades is the cross-flow impeller 69 that cylindric arrangement forms, and is set side by side with the motor (diagram is omitted) that makes this cross-flow impeller rotation in the outside on air draft road 61.

Then, the part above the above-mentioned connected entrance 60 of the ratio of ventilation shaft 42 more leans on is provided with filter 70.Be provided with ratio connected entrance 60 this filter 70, ventilation shaft 42 more by the part of top, the air flow during with respect to dry operating described later more leans on upstream side than the part that branches out said exhaust road 61 on ventilation road 51.

In addition, filter 70 is caught the velveteen that is scattered and from washings (clothing).In detail, as shown in Figure 3,71 of latticed filter bodies are located on the framework (frame) 72, are provided with handle portion 73 at framework 72.Handle portion 73 is hollow form, has gland 74 in front in the portion, and the user according to pressing off this gland 74 shown in the double dot dash line, makes finger tip can catch the grip 75 of top with finger tip.And when releasing was pushed, gland 74 was returned to initial closed condition by the active force that has omitted illustrated spring (spring) etc.

Relative therewith, on the part above more leaning in the bottom of the front face of above-mentioned shell 21, than the export department 62 on air draft road 61, be formed with filter gateway 76, on the part above the ratio connected entrance 60 of its rear, ventilation shaft 42 more leans on, be formed with filter through hole 77 and guide part up and down 78,79, by them, the part of the filter body 71 of filter 70 inserted with the form that ventilation shaft 42 is hidden be placed in the ventilation shaft 42.

And then the rear in the part that is placed with filter 70 of ventilation shaft 42 is equipped with microswitch (microswitch) 80.This microswitch 80 is followed the discrepancy of filter 70 and is moved.That is to say, thus microswitch 80 when putting filter 70 into, pushed and open by framework 72, thereby framework 72 pushes to be disengaged and closes (off) when taking out filter 70.Therefore, come work as the installation that detects filter 70, the checkout gear of taking-up.

And, be provided with the control part 81 of the required power-supply system of control scrubbing-and-drying unit and the control part 82 of display system in the inner upper of shell 21, and the feed water valve 83, supply tank 84 and the water supply hose 85 that are used for water supply in tank 22.

Next, the effect of the scrubbing-and-drying unit of above-mentioned structure is narrated.

In the scrubbing-and-drying unit of above-mentioned structure, during the running process of beginning standard, begin washing (cleaning and rinsing) running at first.In this washing running, carry out the action of supplying water in tank 22 via supply tank (feed-water case) 84 and water supply hose (feed water hose) 85 from feed water valve 83, then, by making motor 38 work, swivelling chute 23 is alternately rotated to positive and negative both direction with low speed.

When the washing running is finished, next begin the dehydration running.In this dehydration running, after the water in the tank 22 is discharged, make the action of swivelling chute 23 to rotate to a direction at a high speed.Like this, with the washings centrifugal dehydration in the swivelling chute 23.

When the dehydration running is finished, next implement dry operating.In this dry operating, switch turnover panel 66 (set) is set shown in Fig. 1 solid line, make the inlet scoop 43 of ventilation shaft 42 is opened, connected entrance 60 is closed.Under this state, Yi Bian swivelling chute 23 is rotated to positive and negative both direction with low speed, Yi Bian make the motor 53 that circulates with pressure fan 46 carry out work.So under the air-supply effect of centrifugal impeller 52, shown in Fig. 1 solid arrow A, the air in the tank 22 is in the return air duct 44 and connection flexible pipe 45 flow ventilation pipelines 42 of warm braw outlet 33 via ventilation road 51.

In addition, at this moment the compressor 56 of heat pump 58 is started working.Like this, thereby the refrigerant of enclosing heat pump 58 is compressed the refrigerant that becomes High Temperature High Pressure, and the refrigerant of this High Temperature High Pressure flows into condenser 55, carries out heat exchange with air in the ventilation shaft 42.As a result, the air in the ventilation shaft 42 is heated, thereby the temperature of refrigerant reduces liquefaction on the contrary.Thereby next the refrigerant of this liquefaction is depressurized by choke valve 57, and inflow evaporator 54 then, gasify.Like this, the air in 54 pairs of ventilation shafts of evaporimeter 42 cools off.Refrigerant by evaporimeter 54 returns compressor 56.

Like this, the air in the above-mentioned tank 22 in the flow ventilation pipelines 42 is in evaporimeter 54 dehumidifying that is cooled, thereby is heated warm brawization at condenser 55 afterwards.Then, this warm braw supplies in the tank 22 from warm braw inlet 34, and then supplies in the swivelling chute 23 from warm braw introducing port 32 via connecting flexible pipe 49, steam line 50.

Supply to after warm braws in the swivelling chute 23 have absorbed the moisture of washings, from above-mentioned warm braw outlet 33 via return air duct 44 and connect in the flexible pipe 45 flow ventilation pipelines 42.

So air circulates between ventilation shaft 42 with evaporimeter 54 and condenser 55 and swivelling chute 23, the washings in the swivelling chute 23 is dried thus.Therefore, come work as hothouse in the swivelling chute 23 in this case.

In addition, when this dry operating, be scattered that the velveteen that is being carried by the air that flows out from swivelling chute 23 and by return air duct 44 and connect flexible pipe 45, being hunted down like that shown in Fig. 3 velveteen L in the filter 70 from washings.Therefore, this velveteen L can be by the part that is equipped with evaporimeter 54 and condenser 55 on ventilation road 51, thereby velveteen L can be attached on these evaporimeters 54 and the condenser 55 and hinder circulation of air, thereby perhaps hinders air to contact the heat exchange performance reduction with these evaporimeters 54 and condenser 55.

With above relative, when freezed in the space that is provided with scrubbing-and-drying unit, as shown in Figure 4, switching turnover panel 66 switches, make the connected entrance 60 of ventilation shaft 42 is opened, inlet scoop 43 is closed, and flashboard 63 is opened, under this state, the compressor 56 of heat pump 58 is started working, and air draft is simultaneously worked with pressure fan 68.

Like this, shown in dotted arrow B among Fig. 4, the outer air of ventilation shaft 42 are inhaled in the ventilation shaft 42 from air entry 65, thereby the air flow during with above-mentioned dry operating is cooled by evaporimeter 54 upstream.Then, this cooled air is discharged to the place ahead of machine exterior from connected entrance 60 process air draft roads 61, freezed in the space that is provided with scrubbing-and-drying unit.And meanwhile, the air introducing port (diagram is omitted) that is had from shell 21 sucks the air outside the machine in the shell 21 (outside the ventilation shaft 42).

In addition, at this moment, because filter 70 is positioned at upstream side ventilation road 51, the air flow when more making dry running dry up than the part that branches out air draft road 61 (connected entrance 60), so the air flow when air can be with dry operating is upstream by filter 70, thereby the velveteen L that is caught by filter 70 when dry operating just can not peel off from filter 70 when cooling operation, is discharged to machine exterior with the air that will be discharged to machine exterior (cold wind).

And, the velveteen L that catches by filter 70, thus can remove from filter 70 by filter 70 being fetched into machine exterior.Removed velveteen L filter 70 can after clear away, be returned to the origin-location then.In addition, when filter 70 is taken out, thereby microswitch 80 carries out the taking-up that closing motion detects filter 70.Like this, under the situation of the scrubbing-and-drying unit of this structure, become with pressure fan 46 can not duty in circulation when dry operating, and become with pressure fan 68 can not duty in air draft when cooling operation.In this case, also running all can be made as can not duty, but when heat pump 58 was stopped in operation process, will carry out equilibrating because of the balance of refrigerant pressure needed the time, need the time thereby restart, can not duty so preferably avoid becoming.

In the present embodiment, set part more by upstream side punishment expenditure air draft road 66 from the ratio evaporimeter 54 on ventilation road 51, make ventilation road 51 air outward from being arranged on the air entry 65 on the ventilation road 51, air flow during with dry operating by evaporimeter 54, is discharged to machine exterior from air draft road 61 upstream.The filter 70 of catching velveteen is arranged on the upstream side of air flow ventilation road 51, during than the more close dry operating of the part that branches out air draft road 61, and the air flow when air can be with dry operating like this is upstream by filter 70.So, can when dry operating, catch velveteen, and this velveteen of catching can not be discharged to machine exterior when cooling operation.

In addition, present embodiment can be located filter 70 is taken out above the export department 62 on air draft road 61, can take out, install filter 70 in the position of the lowest part that exceeds shell 21, so can improve operability.

And the user presses off the gland 74 of handle portion 73 fronts with finger tip, and finger tip catches grip 75 with its extraction, just can take out filter 70.In addition, by with filter body 71 sides as the place ahead, filter 70 is inserted from the filter gateway 76 of shell 21, thereby filter 70 is installed.The filter 70 that inserts embeds between the guide part 78,79 through the filter through hole 77 of ventilation shaft 42, finishes installation.

More than, narrated one embodiment of the present of invention, but the present invention is not limited thereto, particularly the integral body as scrubbing-and-drying unit is not limited to above-mentioned horizontal shaft type, and also longitudinal axis shape ground has the longitudinal axis formula of tank and swivelling chute.In addition, be not limited to the scrubbing-and-drying unit that has washing and dry two kinds of functions originally, also be applicable to clothesdrier that only has functions/drying or the like, in the scope that does not break away from purport, can suitably change and implement.

Claims

1. clothesdrier, it is characterized in that: this clothesdrier is made of hothouse and ventilation road, described ventilation road is connected between the air supply opening and outlet of this hothouse, portion is equipped with evaporimeter and the condenser that constitutes heat pump within it, make above-mentioned evaporimeter at above-mentioned discharge oral-lateral, above-mentioned condenser at above-mentioned air feed oral-lateral; And, this clothesdrier can carry out dry operating and cooling operation selectively, described dry operating makes the air in the above-mentioned hothouse circulate by above-mentioned ventilation road, thus the clothing in the hothouse is carried out drying, described cooling operation will be from above-mentioned ventilation road, setting part than above-mentioned evaporimeter more opens by the air draft road that the part of upstream side branches out, air entry on being arranged on the ventilation road obtains the air outside the ventilation road, air flow adverse current when making it with above-mentioned dry operating, and pass through contiguously with the heat-exchange surface of above-mentioned evaporimeter, outside the said exhaust road is discharged to the ventilation road;

Wherein, the filter of catching velveteen is arranged in the above-mentioned ventilation road, than the branch location on the said exhaust road upstream side the air flow by with respect to above-mentioned dry operating time the more.

2. clothesdrier as claimed in claim 1 is characterized in that above-mentioned filter is configured to, and can take out between the outlet of hothouse and above-mentioned ventilation road in the position above the outlet on said exhaust road.