EP2163677A1 - Unité de climatisation d'air pour un sèche-linge à condensation - Google Patents

Unité de climatisation d'air pour un sèche-linge à condensation Download PDF

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Publication number
EP2163677A1
EP2163677A1 EP09161486A EP09161486A EP2163677A1 EP 2163677 A1 EP2163677 A1 EP 2163677A1 EP 09161486 A EP09161486 A EP 09161486A EP 09161486 A EP09161486 A EP 09161486A EP 2163677 A1 EP2163677 A1 EP 2163677A1
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EP
European Patent Office
Prior art keywords
suction
air
heat exchanger
heat exchange
exchange area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09161486A
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German (de)
English (en)
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EP2163677B1 (fr
Inventor
Kouji Nakai
Junji Kotani
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Panasonic Corp
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Panasonic Corp
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Publication date
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Publication of EP2163677A1 publication Critical patent/EP2163677A1/fr
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Publication of EP2163677B1 publication Critical patent/EP2163677B1/fr
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to an air conditioning unit which is installed in an equipment such as a drum type washer-dryer, and conditions a circulating air.
  • a conventional air conditioning unit is built inside a drum type washer-dryer through use of a dead space in a rear portion of its tub or the like, and is connected to the middle of a circulating air passage having a blowing fan.
  • the circulating air passage sucks in and discharges an air inside the tub by the drive of the blowing fan, introduces the air to an air conditioning unit from its suction inlet port, and subjects the air to dehumidification by an evaporator and heating by a condenser, to give a dry high-temperature air.
  • the circulating air passage discharges the air from a suction outlet port, sends the air to the tub side so as to return it into the tub, and dries laundry inside a rotating drum.
  • the above operations are repeated to execute a drying process after a washing process and a rinsing process.
  • an air passage from the suction inlet port to the suction outlet port is formed between front and rear opposed walls of the air conditioning case.
  • an area is partitioned between a suction inlet side facing the rear wall as one of the front and rear opposed walls and a suction outlet side facing a front wall as the other opposed wall, and an evaporator and a condenser for dehumidifying and heating the air are disposed in the partitioned sides.
  • the suction inlet port is provided upward closely to the rear wall side of a ceiling wall of the air conditioning case and communicates with the suction inlet side from its upper portion.
  • the suction outlet port is provided in a lower portion of an end wall of the air conditioning case and communicates with the suction outlet side from its lateral side.
  • a heat exchange area is provided with a reservoir for reserving dew condensation water that is generated in a dehumidification function of the evaporator or water that may get in the area for some reason.
  • the water reserved in the reservoir is then discharged by means of a drainage pump.
  • a filter since flowing-in of a foreign matter such as lint accompanying a circulating air may cause clogging in the drainage pump or an operational failure, a filter has conventionally been provided at an opening of the reservoir. It is to be noted that the technical contents described above are disposed in Unexamined Japanese Patent Publication Laid-Open No. 2008-79861 .
  • the present invention provides an air conditioning unit that discharges waters generated or collected in a heat exchange area by means of a drainage passage devised so as to prevent a foreign matter such as lint from flowing onward, thereby eliminating the need for a filter and its maintenance.
  • An air conditioning unit of the present invention is an air conditioning unit in which a heat exchange area of an air passage from a suction inlet port to a suction outlet port for an air is partitioned between a suction-inlet-side heat exchange area and a suction-outlet-side heat exchange area, and a heat exchanger for dehumidification and a heat exchanger for heating to dehumidify and heat an air are disposed in the partitioned areas inside a unit case having the suction inlet port and the suction outlet port, wherein waters generated in the heat exchange area are discharged to a bottom portion of the heat exchange area through a drainage passage provided with a projection and/or a narrowed portion as obstruction portions for catching a foreign matter such as lint so as not to flow onward.
  • the air conditioning unit of the present invention is an air conditioning unit in which a heat exchange area of an air passage from a suction inlet port to a suction outlet port for an air is partitioned between a suction-inlet-side heat exchange area and a suction-outlet-side heat exchange area, and a heat exchanger for dehumidification and a heat exchanger for heating to dehumidify and heat an air are disposed in the partitioned areas inside a unit case having the suction inlet port and the suction outlet port, wherein a bottom portion of the heat exchange area is provided with: a dew condensation water discharging tray, provided so as to catch dew condensation water flowing from the heat exchanger for dehumidification and discharge the water; a water collecting portion that collects and reserves water or the like dropping or running down to a suction-inlet-side heat exchange area side of the heat exchanger for dehumidification; and an auxiliary discharging tray that bypasses around the dew condensation water discharging tray from part of the
  • At least a drainage passage of the auxiliary discharging tray out of the auxiliary discharging tray and the dew condensation water discharging tray is provided with a projection or a narrowed portion as obstruction portions for catching a foreign matter such as lint so as not to flow onward.
  • the waters can be guided to the dew condensation water discharging tray through the auxiliary discharging tray that bypasses around the dew condensation water discharging tray from part of the water collecting portion and then discharged without a dedicated drainage system.
  • the projection or the narrowed portion as obstruction portions which are provided in at least the drainage passage of the auxiliary discharging tray out of the auxiliary discharging tray and the dew condensation water discharging tray, catch the foreign matter such as lint so as not to flow onward. It is thereby possible to prevent the foreign matter from getting in a drainage pump even without a filter. This can prevent clogging in the filter and make the filter maintenance-free.
  • the auxiliary discharging tray communicates with the dew condensation water discharging tray through the narrowed portion.
  • the narrowed portion, through which the auxiliary discharging tray communicates with the dew condensation water discharging tray also serves as an objection portion to catch the foreign matter such as lint so as to prevent the matter from getting into the dew condensation water discharging tray side connected to the drainage system.
  • the heat exchanger for dehumidification and the heat exchanger for heating form a heat exchanger in which each other's fins are aligned in parallel, the heat exchanger for dehumidification is directly placed on the dew condensation water discharging tray, and the heat exchanger for heating is directly placed on the auxiliary discharging tray.
  • each other's fins of the heat exchanger for dehumidification and the heat exchanger for heating are aligned in parallel, so as to avoid formation of an isolated space between the heat exchangers which is a wasted space and causes bypassing of the flow of the circulating air to the suction outlet port side.
  • the heat exchanger for dehumidification can be directly placed on the dew condensation water discharging tray and covered, thereby to take and discharge dew condensation water neither accompanied with lint or the like nor entering from therearound.
  • the auxiliary discharging tray is functioned through use of a lower space of the heat exchanger for heating directly placed on the auxiliary discharging tray.
  • the auxiliary discharging tray communicates with a bottom portion of the suction-outlet-side heat exchange area in the heat exchange area. Since the auxiliary discharging tray communicates with the bottom portion of the suction-outlet-side heat exchange area in the heat exchange area, even when water gets into the suction-outlet-side heat exchange area side for some reason, it can be discharged through the auxiliary discharging tray and the dew condensation water discharging tray.
  • FIGs. 1 and 2 are views of an air conditioning unit according to an embodiment of the present invention, which is mounted in a drum type washer-dryer.
  • tub 3 is installed in a floating state inside washer-dryer body 44 by a suspension structure not shown, and rotating drum 2 formed in a bottomed cylindrical shape inside tub 3 is installed with its axial directed downward with inclination from the front surface side to the rear surface side.
  • Laundry loading-unloading opening 11 communicating with an open end of rotating drum 2 is formed on the front surface side of tub 3, and by opening door 9 that openably/closably closes an opening provided on an upward inclined surface formed on the front surface side of washer-dryer body 44, laundry can be put into and take out of rotating drum 2 through laundry loading-unloading opening 11. With door 9 provided on the upward inclined surface, an operation of putting in and taking out the laundry can be conducted without bending one's back.
  • a large number of through holes 8 communicating with the inside of tub 3 are formed on the circumferential surface of rotating drum 2, and agitating protections (not shown) are provided in a plurality of positions on the inner circumferential surface in a circumferential direction.
  • This rotating drum 2 is rotated and driven in forward and backward rotational directions by motor 7 fitted on the rear surface side of tub 3. Further, water filling pipe 12 and drainage pipe 13 are piped and connected in tub 3, and inject and discharge water into and from tub 3 by control of a water injection valve and water discharge valve, not shown.
  • the laundry accommodated inside rotating drum 2 is repeatedly subjected to an agitation operation of bringing up the laundry in the rotating direction and dropping the laundry from an appropriate height to which the laundry has been brought up by the agitating projections provided on the inner circumferential wall of rotating drum 2, and thereby, a beat-washing action is exerted on the laundry for washing.
  • waste washing water is discharged from drainage pipe 13, and the washing water included in the laundry is removed by a dehydration operation of rotating rotating drum 2 at high speed. Thereafter, water is injected from water filling pipe 12 into tub 3 to carry out a rinsing process.
  • the laundry accommodated inside rotating drum 2 is repeatedly subjected to the agitation operation of bringing up the laundry and dropping the laundry by the agitating projections on the basis of rotation of rotating drum 2, and thereby, beat-washing is acted on the laundry for rinsing.
  • This drum type washer-dryer 1 is provided with a function of drying the laundry accommodated inside rotating drum 2. Therefore, as already described, in drum type washer-dryer 1, air-conditioning fan unit 39 and circulating air passage 5 for sucking and discharging an air inside tub 3 to introduce the air to air-conditioning fan unit 39 and again sending a dry high-temperature air, subjected to dehumidification and heating, are built and blowing fan 15 is provided on the downstream of air-conditioning fan unit 39 of circulating air passage 5.
  • This dry high-temperature air is sucked to blowing fan 15 through suction outlet port 392, and then sent to blower tube 33 guiding to tub 3, to be sent into tub 3.
  • the dry high-temperature air sent into tub 3 enters into rotating drum 2 through through holes 8, passes through rotating drum 2 to tub 3 while being exposed to the laundry such as clothes, and is introduced again to circulating air inlet pipe 16.
  • a drying process is conducted by repetition of the circulation of the air in circulating air passage 5.
  • filter room 36 accommodating filter 35 for removing a foreign matter in the circulating air is provided.
  • filter 35 is detachably provided as in the general case.
  • air-conditioning fan unit 39 is directly connected with blowing fan 15 to constitute air-conditioning fan unit 81 that can be handled as a single body, but the configuration is not restricted to this.
  • evaporator 31 in which dew condensation water is generated forms the heat exchanger 395 together with condenser 32, and reservoir 63 of dew condensation water is provided in a range corresponding to a dehumidification area of the bottom portion of air conditioning case 38 of the heat exchanger.
  • Reservoir 63 is connected with drainage pipe 65 having drainage pump 64, and water is discharged in proper volume based upon detection of a water level by use of a water-level sensor, not shown.
  • the heat exchanger is provided so as to be located at the lowest level portion of circulating air passage 5.
  • air-conditioning fan unit 39 that operates as mounted in a variety of equipment has an influence on a size increase, a product price, time and effort for maintenance, and running cost of the equipment installed with air-conditioning unit 39, it is desired to reduce the size, the number of parts, the number of assembly processes, and the number of replacement parts.
  • Fig. 3 is a sectional view showing an air-conditioning fan unit in which a blowing fan is connected to the air conditioning unit according to the embodiment of the present invention.
  • Fig. 4 is a cross sectional view of an accommodating area of the compressor, as well as a one-end-side posterior area as part of the air passage which is partitioned from the accommodating area, of the air conditioning unit according to the embodiment of the present invention.
  • Fig. 5 is a cross sectional view of the heat exchange area of the air conditioning unit according to the embodiment of the present invention.
  • Fig. 6 is a plan view of the air conditioning unit according to the embodiment of the present invention when an upper divided portion of the unit case is removed.
  • Fig. 7 is a perspective view of the air conditioning unit according to the embodiment of the present invention in the state of Fig. 6 when viewed from an oblique angle.
  • air-conditioning unit 39 of the present embodiment has a basic configuration where heat exchanger 395 made up of evaporator 31 and condenser 32 that are located in the middle of air passage 393 from suction inlet port 391 to suction outlet port 392 and dehumidify and heat the circulating air, and compressor 37 that circulates the cooling medium through this heat exchanger 395 are built inside unit case 38 having suction inlet port 391 and suction outlet port 392.
  • unit case 38 is made up of a plurality of divided portions 381, 382 (specifically two, upper and lower, divided portions), sealing material 384 is continuously held in scored line 383 formed by divided portions 381, 382 bordering the outer surface of unit case 38, to make the inside and the outside of unit case 38 air-tight, and on the outer wall of the water collecting portion typified by already-mentioned reservoir 63 of unit case 38, drain mechanism 101 is provided which is opened by collected water and discharges the collected water while inhibiting suction of outside air (cf. Figs. 4 and 5 ).
  • unit case 38 is made up of the plurality of divided portions 381, 382, and in the simple configuration where sealing material 384 is held in scored line 383 formed by divided portions 381, 382 bordering the outer surface of unit case 38, to make the inside and the outside of unit case 38 air-tight, even when air passage 393 from suction inlet port 391 to suction outlet port 392 is communicated with accommodating area 394 side of compressor 37, the suction action does not actively reach and thus has no influence on accommodating area 394 that serve as an air reservoir, whereby it is possible to ensure functions of circulation of a sucked air and the functions of dehumidification and heating.
  • drain mechanism 101 provided in reservoir 63 of unit case 38 or the like is opened by collected water and discharge the collected water so as to deal with the water collection, and meanwhile, drain mechanism 101 inhibits suction of the outside air so as to ensure its function of introducing the circulating air, performing heat exchange, and discharging the water.
  • unit case 38 is made up of two divided portions 381, 382 as in the present embodiment, the number of parts, the number of assembly processes and the number of replacement parts are further reduced.
  • Partition portion 386 makes a partition by a confronting structure of upper and lower partition walls 386a, 386b integrally formed in both upper and lower divided portions 381, 382, and thus realizes the partition by a simple configuration formed of two portions while unit case 38 is a complicated space shaped body having partitioned accommodating area 394 and air passage 393. Furthermore, in place of upper and lower partition walls 386a, 386b, a single partition wall formed in one of divided portions 381, 382 can be used as partition portion 386.
  • Valve mechanism 101 serves as drain hole 101a provided on the outer wall of the water collecting portion such as reservoir 63 and check valve 101b for closing this drain hole 101a from the outside by pulling pressure inside unit case 38. Only at the time of operation when the pulling pressure exerts inside unit case 38, drain mechanism 101 closes drain hole 101a provided on the outer wall of the water collecting portion such as reservoir 63 by the pulling pressure, to block the outside air with high air-tightness, so as to maintain the function of air-conditioning unit 39.
  • check valve 101b In case of a large volume of water collection, water pushes the valve with its own weight to open the valve and can then be discharged, and at the time of non-operation, check valve 101b is not necessarily closed, and can thus be realized by a simple flap-type valve piece having no closing trait (cf. Figs. 4 , 5 ).
  • check valve 101b made of a rubber piece
  • the valve can be easily mounted in such a manner that hook 101c integrally formed in the top of check valve 101b is elastically engaged into mounting hole 101d provided in the upper portion of drain hole 101a, and even with frequent closing and closing-release in response to suction and suction-release, the action stroke of check valve 101b is minute and does not promote fatigue, and hence check valve 101b is extremely rarely a replacement part in maintenance.
  • the bottom portion of the accommodating area 394 is made as water reservoir 396 like reservoir 63 according to heat exchanger 395 and provided with drain mechanism 101.
  • Fig. 8 is an external perspective view of the air conditioning unit according to the embodiment of the present invention when viewed from the front side.
  • Fig. 9 is an external plan view of the air conditioning unit according to the embodiment of the present invention when viewed from above.
  • unit case 38 is formed in almost rectangular shape, in which suction inlet port 391 is provided at the rear portion of the ceiling wall of one end of the longitudinal direction of unit case 38, and suction outlet port 392 is provided on the end wall of the other end.
  • unit case 38 is partitioned by this accommodating area 394, air passage 393 expanding to the rear portion side and the other end side inside unit case 38 with respect to accommodating area 394, and upper and lower partition walls 386a, 386b extending from both divided portions 381, 382 forming unit case 38 to form partition portion 386 or the divided wall extending from one of the divided portions (cf. Fig. 7 ).
  • evaporator 31 and condenser 32 are provided as partitioned between the suction inlet side and suction outlet side in the front and rear portions of heat exchange area 393a located between partition portion 386 and the end wall which are mutually opposed in the longitudinal direction of unit case 38.
  • suction inlet port 391 opens upward at a higher position than the ceiling wall of heat exchange area 393a of unit case 38, and as shown in Figs. 4 and 7 , suction inlet port 391 is provided in such size as to stretch, in a plan view, from a position overlapping the rear portion side of accommodating area 394, and from heat exchange area 393a in air passage 393 to the top of one-end-side posterior area 393b extended to the rear portion of accommodating area 394 on one end side of unit case 38, without an increase in volume to the outside of air conditioning case 38.
  • Air passage 393 further includes vertical curved area 393c that smoothly expands from a base opening of suction inlet port 391 to one-end-side posterior area 393b to guide the circulating air downward, and upwardly expanded posterior area 393d formed by upwardly expanding the posterior suction inlet side of heat exchange area 393a from suction inlet port 391 to the other end side of unit case 38 at a position not higher than suction inlet port 391.
  • air passage 393 takes the circulating air introduced from suction inlet port 391 into one-end-side posterior area 393b located off heat exchange area 393a provided to the side of accommodating area 394 toward the one end side of unit case 38, and upwardly expanded posterior area 393d placed off the rear portion of heat exchange area 393a upward.
  • suction inlet port 391 having a size, in a plan view, almost overlapping one-end-side posterior area 393b in air passage 393 from a position overlapping the rear portion side of accommodating area 394 of compressor 37, while air passage 393 increases a volume of the circulating air introduced and the flow of the circulating air to one-end-side posterior area 393b with a smaller longitudinal width than that of suction inlet port 391 is narrowed, the air can be smoothly introduced by the guide of vertical curved area 393c without irregular variation or pressure drop and guided to the rear suction inlet side of heat exchange area 393a, and in addition, the flow of the introduced air from suction inlet port 391 to upwardly expanded posterior area 393d side extending to the other end side of unit case 38 is facilitated by as much as the above-mentioned narrowing.
  • the already described reservoir 63 is formed by forming upwardly open, plate-shaped heat exchanger tray 393a1 that has almost a consistent shape with a rectangular shape, in a plan view, of heat exchanger 395 in heat exchange area 393a, and is mounted with heat exchanger 395.
  • Heat exchanger 395 installed and mounted on heat exchanger tray 393a1 forms a unit made by mutual integration of evaporator 31, condenser 32 with each other's fins 395c having a minute gap (not shown).
  • bypass passage to suction outlet port 392 caused by a play in the isolated space can be suppressed to keep an effective area large, so as to enhance dehumidification efficiency, heating efficiency and drying efficiency, and seek for reduction in drying noise.
  • the thermally isolated gap is configured to be a space to such a degree as to allow individual handling of evaporator 31 and condenser 32, the performance does not significantly deteriorate.
  • heat exchanger 395 is oriented with inclination with respect to the longitudinal direction of unit case 38 as shown in Figs. 6 and 7 such that an opposed distance between suction face 395a which is oriented backward and the suction-inlet-side posterior wall of heat exchange area 393a of air conditioning case 38 opposed to backward suction face 395a becomes shorter from one-end-side posterior area 393b side connected to suction inlet port 391 to the other end side of unit case 38.
  • the shortest direction A of heat exchange area 393a oriented with inclination from one-end-side posterior area 393b side to suction outlet port 392, shown in Fig.
  • an inclination angle ⁇ of the orientation of fin 395c of heat exchanger 395 becomes smaller in proportion to the case of disposing heat exchanger 395 in the longitudinal direction of air conditioning case 38. Ventilation resistance is reduced as much as the inclination angle becomes smaller, and a distribution of the air passing through heat exchanger 395 is made uniform. Accordingly, it is possible to further improve both dehumidification efficiency and heating efficiency, so as to enhance air conditioning performance, and drying efficiency and drying performance at the time of mounting in the washer-dryer, and make sound more quiet.
  • heat exchanger 395 is to be consistent as possible with the inclined direction A headed in the shortest distance from one-end-side posterior area 393b to suction outlet port 392 in heat exchange area 393a.
  • Fig. 10 is a plan view of a lower divided portion of the unit case of the air conditioning unit according to the embodiment of the present invention.
  • Fig. 11 is a perspective view of the lower divided portion of Fig. 10 .
  • heat exchange area 393a is formed having a bottom shape of unit case 38 in which heat exchanger tray 393a1 and the suction outlet side of heat exchanger 395 are low as reservoir 63 and the air suction inlet side of heat exchanger 395 is high
  • accommodating area 394 is formed having the bottom shape of unit case 38 so as to be further lower than reservoir 63. This allows suppression of height at which compressor 37 is installed is suppressed, and lowering of the center of gravity.
  • heat exchanger 395 is directly placed and mounted on heat exchanger tray 393a1 without a filter interposed therebetween.
  • a portion mounted with evaporator 31 is regarded as dew condensation water discharging tray 21 for taking dew condensation water generated in evaporator 31 and discharging water.
  • a portion mounted with condenser 32 of heat exchanger 395 is partitioned from the portion mounted with condenser 32, regarded as separated water discharging tray 23 for separating and taking moisture removed from accompanying laundry and a detergent component and a fabric conditioner component, which might be mixed into the circulation system, before passage of the air through heat exchanger 395 and then discharging water.
  • Dew condensation water discharging tray 21 and separated water discharging tray 23 are roughly partitioned by partition wall 28 getting them mutually partitioned. However, drain hole 22 is provided in dew condensation water discharging tray 21 so that separated water discharging tray 23 discharges water through dew condensation water discharging tray 21.
  • Objects of this gas-liquid separation naturally includes water accompanying the circulating air, and a highly viscous detergent component or fabric conditioner component subjected to the gas-liquid separation can be washed away or diluted by the water simultaneously separated by the gas-liquid separation, thereby to avoid burdening drainage pump 64, which is advantageous.
  • shelf portion 24 that almost horizontally extends from the posterior wall to the front portion side of unit case 38, and inclined portion 25 that is connected to shelf portion 24 as inclined obliquely downward from shelf portion 24 to heat exchanger tray 393a1 and guides the sucked and introduced air, having passed through shelf portion 24, to pass over backward suction face 395a of heat exchanger 395 installed and mounted on heat exchanger tray 393a1.
  • the sucked air introduced to air passage 393 is collided with shelf portion 24 in the middle of its flow downward from suction inlet port 391 and upwardly expanded posterior area 393d to heat exchanger 395, and guided to heat exchanger 395 side.
  • moisture removed from accompanying laundry and the detergent component and the fabric conditioner component which might be mixed into the circulation system can be collision-separated.
  • the separated water, the detergent component and the fabric conditioner component, having been separated shift in shelf portion 24 to inclined portion 25 side due partly to the flow of the sucked air, and drop with support of inclined portion 25. Specifically, the separated water is actively drifted to inclined portion 25 side and reaches inclined portion 25 side in the form of washing away the highly viscous detergent component and fabric conditioner component.
  • separated water discharging tray 23 has minute communicating portion 29a in partition wall 29 for partition from the suction outlet side and minute communicating portion 28a in partition wall 28 for partition from dew condensation water discharging tray 21.
  • water in case of overflowing to the suction outlet side for the reason of operational failure of drainage pump 64 connected to drain hole 22 or for some other reason, or water that might be collected flows into separated water discharging tray 23 through communicating portion 29a, and then flows to dew condensation water discharging tray 21 through communicating portion 28a, to reach drain hole 22.
  • communicating portions 28a, 29a are set to have such a size as to allow water to smoothly pass therethrough but not to allow highly viscous detergent component and fabric conditioner component to pass therethrough as they are.
  • the middle of the flow passage of each of dew condensation water discharging tray 22 and separated water discharging tray 23 is also provided with communicating portion 41 not to allow lint, the detergent component and the fabric conditioner component to pass therethrough and the baffle projection 42.
  • the caught lint helps catching the detergent component.
  • the obstructed water dilutes the detergent while being collected, and finally washes away the diluted detergent to drain hole 22.
  • the detergent component and fabric conditioner component are efficiently separated along with moisture removed from laundry accompanying the circulating air, and is further discharged after diluted, and thus neither burdens nor stops drainage pump 64.
  • communicating portion 41 is formed by cutting off the central part of barrier wall 41a crossing the flow passage in V shape and reliably restricts the passage of the detergent component and fabric conditioner component, even when a volume of the lint with its passage restricted slightly increases to restrict the passage of the water, a volume of the water with its passage restricted becomes larger than that of the lint and communicating portion 41 expand upward to reduce the degree of restriction, thereby to facilitate the water with its passage restricted to flow onward along with a component such as the component of the diluted detergent.
  • shelf portion 24 and inclined portion 25 effectively act by narrowing an internal space of a posterior area of the lower half of unit case 38, and consequently, a recessed shape shown in Figs. 4 and 7 is added to the inside of the posterior wall of the lower half of unit case 38, to form an empty space S opened backward and downward below shelf portion 24.
  • air-conditioning unit 39 and air-conditioning fan unit 81 are installed along the posterior wall on the bottom portion of washer-dryer body 44 as shown in Fig. 3 , the empty space S can be effectively utilized as a space for wire connection that is made outside air-conditioning unit 39 and air-conditioning fan unit 81, a space for installation of external equipment such as a sensor, or the like, as shown in Figs. 1 and 4 .
  • shelf portion 24 and inclined portion 25 are integrally formed on lower divided portion 382 side so as to facilitate the continuity thereof to be ensured, and shelf portion 24 is formed at a position slightly below the joint flange 382a that makes a joint between lower divided portion 382 and upper divided portion 381 while forming scored line 383.
  • the joint flange 382a accommodates a circular sealing material 384 inside a concavity of its circumference, and seals a space with scored line 383 in a joint structure of sandwiching sealing material 384 by concavo-convex fitting in which a convexity of joint flange 381a of upper divided portion 381 is fitted in the above-mentioned concavity.
  • joint flange 381a and the joint flange 382a are mutually firmly held by screw fastening portion 68 as shown in Fig. 3 which uses fastening holes provided in large number in the circumferential direction as shown in Fig. 11 .
  • heat exchanger 395 has partition wall 52 that is a metal plate projecting forward and backward and corrosion-resistant, such as an aluminum-based metal plate, as shown in Figs. 4 , 6 and 7 , at an end fitted, while held from above and below, in opening 51 formed by air passage 393 and partition portion 386 of accommodating area 394 on accommodating area 394 side, as shown in Figs. 3 and 4 . Inserting this partition wall 52 from above into guide trench 51a formed at an opening edge, especially a vertical opening edge, of opening 51 positions an end side on accommodating area 394 side, and also forms a rough sealing structure of suppressing the air flow at opening 51 portion of air passage 393 and accommodating area 394.
  • partition wall 52 that is a metal plate projecting forward and backward and corrosion-resistant, such as an aluminum-based metal plate, as shown in Figs. 4 , 6 and 7 , at an end fitted, while held from above and below, in opening 51 formed by air passage 393 and partition portion 386 of accommodating area 394 on accommodating area 394 side, as
  • an end of heat exchanger 395 on the opposite side namely an end on suction outlet port 392 side is roughly fitted for positioning from above between guides 53a, 53b, upwardly integrally formed in front and rear corner portions of the end on suction outlet port 392 side of heat exchanger tray 393a1 of lower divided portion 382, as shown in Figs. 6 and 10 .
  • Positioning these both ends positions heat exchanger 395 in a predetermined position on heat exchanger tray 393a1.
  • Fig. 12 is a bottom view of the upper divided portion of the unit case of the air conditioning unit according to the embodiment of the present invention.
  • heat exchanger 395 is prevented from floating from heat exchanger tray 393a1 in collaboration with the upper-portion opening edge of opening 51 of partition portion 386.
  • heat exchange area 393a the suction inlet air on the suction inlet side is prevented from bypassing from the circumference of heat exchanger 395 to the suction outlet side.
  • Compressor 37 is elastically borne by being settled inside recess 394a of bottom portion 394c of accommodating area 394 through elastic base 43, so as to absorb shock and vibration. With such a configuration, it is possible to seek for reducing the size, weight and cost of compressor 37 itself. Further, due to the elastic bearing by being placed in recess 394a through elastic base 43, a vibration absorbing action is exerted on vibration of compressor 37, and further, a high buffering action is also exerted on lateral external vibration at the time of dewatering.
  • air passage 393 and heat exchanger 395 installed therein can be made larger, while remaining the unit case 38 unchanged from the conventional size, whereby it is possible to enhance the heat exchange efficiency, so as to enhance the air conditioning performance.
  • Fig. 13 is a perspective view showing a combined state of an elastic base and the compressor built in the air conditioning unit according to the embodiment of the present invention.
  • compressor 37 is placed by means of elastic base 43 (cf. Fig. 3 ) covered and attached to the lower portion thereof, while having small gap 45 in a radial direction.
  • projection 145 projecting downward from the upper portion of upper divided portion 381 of unit case 38 as shown in Figs. 3 and 12 is opposed to the upper end of compressor 37 with predetermined gap 46 as shown in Fig. 3 , so as to prevent a vent from recess 394a of compressor 37 which exceeds an allowable volume.
  • gap 45 is set to the order of 0.5 mm and gap 46 is set to the order of 5 mm.
  • the allowable volume for the vent is in such a range as not to impair the vibration absorbing action and the buffering action on compressor 37.
  • compressor 37 compresses elastic base 43 until balancing with elastic bearing force of elastic base 43 with its weight, to be settled inside recess 394a, and is floating-borne radially and vertically with some degree of play.
  • elastic base 43 has circular bottom rim 43a opposed to the lower-surface outer circumferential area of compressor 37 and elastically bearing compressor 37, and since not being immaculate, elastic base 43 enhances vibration absorbability against vibration of compressor 37.
  • bottom rim 43a of compressor 37 is arranged so as to allow some degree of swinging with bottom rim 43a of compressor 37 at the center by as much as a volume of above-mentioned gap 45, while enhancing radial bearing force to compressor 37 in its lower end.
  • Elastic base 43 further has cap portion 43b that is connected with the upper end of bottom rim 43a and covers, with a slightly larger thickness, the lower portion outer circumference of compressor 37, as shown in Figs. 3 , 6 , 13 .
  • an engagement recess such as one for being engaged in part of piping projecting from compressor 37 to the body side is previously formed on the circumferential wall of cap portion 43b, it can serve as a rotation stopper for elastic base 43 and compressor 37.
  • an engagement portion or fitting portion for a rotation stopper may also be provided between elastic base 43 and recess 394a.
  • bottom rim 43a and cap portion 43b of elastic base 43 and the like may be arranged as partially different bodies. In short, a basic condition is that the space between recess 394a and the lower end of compressor 37 is filled with the elastic member.
  • bottom portion 394c forming recess 394a is set slightly higher than heat exchanger tray 393a1 and the bottom portion of suction outlet side 393a2 side, accommodating area 394 side and air passage 393 side are partitioned by partition portion 386 around opening 51 holding heat exchanger 395, and a concavity is provided in the lower portion of the opening edge of opening 51, to form communicating passage 47 below heat exchanger 395 of bottom portion 394c, which connects accommodating area 394 side to separated water discharging tray 23 on air passage 393 side, specifically through communicating passage 27.
  • an almost circular rib 48 formed by extending the inner circumferential wall of recess 394a upward as shown in Figs.
  • bottom portion 394c is formed in bottom portion 394c. Further, part of bottom portion 394c corresponds to a dew condensation water dropping portion from cryogenic piping 37a around compressor 37, to take dropping dew condensation water. Consequently, dew condensation water constantly dropping from cryogenic piping 37a during operation even in small volume is taken in bottom portion 394c around recess 394a, passes through communicating passage 47 formed at the same level as bottom portion 394c in the opening-edge lower portion of opening 51 of partition portion 386, and flows and drops to separated water discharging tray 23 lower than bottom portion 394a, so as to be naturally discharged along with separated water, and does not flow into recess 394a by being obstructed by rib 48. Accordingly, the drainage channel can be reduced without the need for a drainage hole in recess 394a where compressor 37 is seated, and the outside air is not sucked, thus preventing deterioration in drying efficiency at the time of low temperature.
  • the inclined arrangement of heat exchanger 395 with respect to the longitudinal direction of unit case 38 does not make a difference to that the suction action reaching suction outlet port 392 from blowing fan 15 on the downstream exerts with a greater force on the closer side to suction outlet port 392 with respect to the entire area of exhaust surface 395b oriented to the front portion of heat exchanger 395. Therefore, on the suction outlet side of heat exchange area 393a, there is a concern that dew condensation water generated at the time of passage through evaporator 31 may be sucked from the closer side to suction outlet port 392 of front exhaust surface 395b of heat exchanger 395 to exhaust surface 395b side, and then sucked into blowing fan 15 through suction outlet port 392.
  • Fig. 14 is a partial perspective view of the air conditioning unit according to the embodiment of the present invention when viewed from obliquely above in the state of Fig. 6 .
  • Fig. 15 is a side view of the air conditioning unit according to the embodiment of the present invention when viewed from the accommodating area side.
  • shielding wall 56 is formed which obstructs suction of dew condensation water due to a strong suction action from suction outlet port 392 through use of guide 53a extending upward on the front portion side of the end on suction outlet port 392 side of heat exchanger tray 393a1. Further, in Fig.
  • shielding wall 56 in a simple shape formed stepwise including guide 53a can cover exhaust surface 395b of heat exchanger 395 in minimum area required.
  • the stepped shielding wall 56 is formed in the shape of steps with its lower portion projecting from its lateral side to exhaust surface 395b side in larger volume than its upper portion.
  • shielding wall 56 covers the lower portion of suction outlet port 392 side of condenser 32 in a larger area than the upper portion thereof, whereby it is possible to restrict the suction in a proper volume in accordance with strength of a distribution of the suction strongly exerted from the suction outlet port 392 of exhaust surface 395b of condenser 32.
  • Shielding wall 56 has a projecting edge including inclination, curvature, and the like, in place of the shape of steps, which is provided as projecting from the lower portion or the side portion of the vicinity of the discharge surface of the condenser.
  • its projecting edge has a shape of any one of inclination, curvature and steps. This can facilitate to make a projecting volume proportional to the degree to which shielding wall 56 projects to exhaust surface 395b side of condenser 32 for obstructing the strong suction from suction outlet port 392, so as to allow restriction in a more proper volume.
  • shielding wall 56 projects to exhaust surface 395b side of condenser 32 to cover the strong suction from suction outlet port 392, so as to restrict the strong suction from suction outlet port 392.
  • gap 111 provided in a space with exhaust surface 395b, the suction from suction outlet port 392 is bypassed to reach, and hence condenser 32 does not stop its function due to blocking of the air flow in the range covered by shielding wall 56.
  • a suction restricting side where the suction is restricted by shielding wall 56 is formed in the shape of having a vertical straight edge 392b that narrows the circular shape around the axis line of fan 15a of suction outlet port 392 and projecting to the axis line side, as shown in Fig. 11 , so as to facilitate prevention of suction of water from the end portion on suction outlet port 392 side of heat exchanger 395.
  • the lower edge of suction outlet port 392 is formed in lateral straight edge 392c that narrows upward to the axis line up to the same height as that of heat exchanger tray 393a1, to restrict suction of moisture from the bottom portion of reservoir 63.
  • connection between suction outlet port 392 of unit case 38 and blowing fan 15 is made such that connecting tube 15c1 of suction port 15c of scroll case 15b accommodating fan 15a is fitted with the inner circumference of suction outlet port 392 with a play.
  • the front edge of connecting tube 15c1 is press-welded to flange wall 392a on the inner circumference of suction outlet port 392.
  • Joint 62 is provided where scroll case 15b and unit case 38 are screw-fastened at a plurality of places (e.g. more than three places) around the connecting portion of suction outlet port 392 and suction port 15c, to hold the above-mentioned press-welded state, thereby to easily seal the connecting portion. This allows omission of a sealing material that becomes a consumable, thereby to reduce running cost.
  • unit case 38 has an advantage that, when it has a configuration formed by three divided materials, each molded article can be made small in volume, and thus facilitate to deal with a complicated shape. In the case of applying this to the illustrative example, when this case is described with reference to Fig.
  • upper divided portion 381 is divided with scored lines (chain double-dashed lines) 61 bordering the outer surface of unit case 38 on a simple plane between a part on and below the ceiling wall of the 303a1 and a part above the ceiling wall, namely upwardly expanded posterior area 393d, suction inlet port 391 and the upper portion of accommodating area 394, and a continuous sealing material is intervened between the scored lines 61 on the circumference to seal inside and outside of air conditioning case 38, whereby it is possible to obtain a characteristic attributed to the configuration of three divided materials without impairing the characteristics obtained in the case of the above-mentioned embodiment of the two-divided structure.
  • scored lines chain double-dashed lines
  • waters generated or collected in the heat exchange area inside the air conditioning case can be discharged without a filter, thereby to eliminate the need for the filter and its maintenance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP09161486A 2008-09-11 2009-05-29 Unité de climatisation d'air pour un sèche-linge à condensation Not-in-force EP2163677B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008233613A JP4708462B2 (ja) 2008-09-11 2008-09-11 空調ユニット

Publications (2)

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EP2163677A1 true EP2163677A1 (fr) 2010-03-17
EP2163677B1 EP2163677B1 (fr) 2012-06-27

Family

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Application Number Title Priority Date Filing Date
EP09161486A Not-in-force EP2163677B1 (fr) 2008-09-11 2009-05-29 Unité de climatisation d'air pour un sèche-linge à condensation

Country Status (5)

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EP (1) EP2163677B1 (fr)
JP (1) JP4708462B2 (fr)
CN (2) CN201381451Y (fr)
RU (1) RU2411317C1 (fr)
TW (1) TW201011138A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2559804A1 (fr) * 2011-08-18 2013-02-20 BSH Electrodomésticos España, S.A. Appareil domestique comprenant une unité de commande pour pompe à chaleur
WO2013024127A1 (fr) * 2011-08-18 2013-02-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil domestique comprenant une unité d'entraînement de pompe à chaleur
EP2620541A1 (fr) * 2012-01-27 2013-07-31 Electrolux Home Products Corporation N.V. Machine pour sécher le linge
DE102014209735A1 (de) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Bodengruppe für ein Haushaltsgerät zum Trocknen von Wäschestücken, sowie Haushaltsgerät mit einer solchen
EP3779028A1 (fr) * 2019-08-14 2021-02-17 LG Electronics Inc. Appareil de traitement du linge comprenant un récipient de condensation aéré

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4708462B2 (ja) * 2008-09-11 2011-06-22 パナソニック株式会社 空調ユニット
JP6145686B2 (ja) * 2012-07-09 2017-06-14 パナソニックＩｐマネジメント株式会社 衣類乾燥機
CN110629449A (zh) * 2012-07-24 2019-12-31 松下电器产业株式会社 具有干燥功能的洗衣机
JP7145956B2 (ja) * 2018-02-01 2022-10-03 青島海爾滾筒洗衣机有限公司 衣類処理装置

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DE19600489A1 (de) * 1995-01-13 1996-07-18 Miele & Cie Trockengerät, insbesondere Kondensationswäschetrockner
JP2007330439A (ja) * 2006-06-14 2007-12-27 Toshiba Corp 洗濯乾燥機
JP2008079861A (ja) 2006-09-27 2008-04-10 Matsushita Electric Ind Co Ltd ドラム式洗濯乾燥機とそれに用いられる空気調和機、空調・送風ユニット

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JP3939280B2 (ja) * 2003-09-29 2007-07-04 三洋電機株式会社 乾燥機
JP3898675B2 (ja) * 2003-08-22 2007-03-28 松下電器産業株式会社 ドラム式洗濯乾燥機
JP2006122466A (ja) * 2004-10-29 2006-05-18 Toshiba Corp 洗濯乾燥機
JP2008194373A (ja) * 2007-02-15 2008-08-28 Mitsubishi Electric Corp 洗濯乾燥機
JP4708462B2 (ja) * 2008-09-11 2011-06-22 パナソニック株式会社 空調ユニット

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Publication number Priority date Publication date Assignee Title
DE19600489A1 (de) * 1995-01-13 1996-07-18 Miele & Cie Trockengerät, insbesondere Kondensationswäschetrockner
JP2007330439A (ja) * 2006-06-14 2007-12-27 Toshiba Corp 洗濯乾燥機
JP2008079861A (ja) 2006-09-27 2008-04-10 Matsushita Electric Ind Co Ltd ドラム式洗濯乾燥機とそれに用いられる空気調和機、空調・送風ユニット

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2559804A1 (fr) * 2011-08-18 2013-02-20 BSH Electrodomésticos España, S.A. Appareil domestique comprenant une unité de commande pour pompe à chaleur
WO2013024127A1 (fr) * 2011-08-18 2013-02-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil domestique comprenant une unité d'entraînement de pompe à chaleur
EP2620541A1 (fr) * 2012-01-27 2013-07-31 Electrolux Home Products Corporation N.V. Machine pour sécher le linge
DE102014209735A1 (de) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Bodengruppe für ein Haushaltsgerät zum Trocknen von Wäschestücken, sowie Haushaltsgerät mit einer solchen
EP3779028A1 (fr) * 2019-08-14 2021-02-17 LG Electronics Inc. Appareil de traitement du linge comprenant un récipient de condensation aéré
US11598044B2 (en) 2019-08-14 2023-03-07 Lg Electronics Inc. Laundry processing apparatus

Also Published As

Publication number Publication date
EP2163677B1 (fr) 2012-06-27
CN201381451Y (zh) 2010-01-13
TW201011138A (en) 2010-03-16
JP4708462B2 (ja) 2011-06-22
JP2010063691A (ja) 2010-03-25
RU2411317C1 (ru) 2011-02-10
TWI370861B (fr) 2012-08-21
CN101671942A (zh) 2010-03-17
CN101671942B (zh) 2012-04-04

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