EP2811058A1 - Trommelwaschmaschine und trockner - Google Patents

Trommelwaschmaschine und trockner Download PDF

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Publication number
EP2811058A1
EP2811058A1 EP13740696.3A EP13740696A EP2811058A1 EP 2811058 A1 EP2811058 A1 EP 2811058A1 EP 13740696 A EP13740696 A EP 13740696A EP 2811058 A1 EP2811058 A1 EP 2811058A1
Authority
EP
European Patent Office
Prior art keywords
heat pump
drum
disposed
pump device
housing
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.)
Withdrawn
Application number
EP13740696.3A
Other languages
English (en)
French (fr)
Other versions
EP2811058A4 (de
Inventor
Akihiro Hosokawa
Kuniyuki Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2811058A1 publication Critical patent/EP2811058A1/de
Publication of EP2811058A4 publication Critical patent/EP2811058A4/de
Withdrawn legal-status Critical Current

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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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

  • the present invention relates to a drum-type washing and drying machine which performs washing and drying of clothing or the like.
  • a drying device includes a heat pump device.
  • a drum-type washing and drying machine having a configuration where a heat pump device is taken out rearward from the inside of a housing for maintenance of the heat pump device (see PTL 1, for example).
  • FIG. 8 is a partially cut-away, cross-sectional view of a main part showing the configuration of the conventional drum-type washing and drying machine.
  • the conventional drum-type washing and drying machine is configured such that heat pump unit 53 and fan 54 are disposed in forward and backward directions (directions indicated by arrows in the figure) at a position below lower end portion 57 of water tub 52 disposed in the inside of body 51.
  • heat pump unit 53 and fan 54 are disposed in forward and backward directions (directions indicated by arrows in the figure) at a position below lower end portion 57 of water tub 52 disposed in the inside of body 51.
  • evaporator 55 is disposed on a front side of body 51
  • condenser 56 is disposed behind evaporator 55.
  • Fan 54 is disposed behind condenser 56.
  • drying air (hereinafter, abbreviated as "air") supplied by fan 54 flows upward through air supply duct 58 disposed behind water tub 52 and is supplied to the inside of water tub 52.
  • the air supplied to the inside of water tub 52 takes moisture from clothing in the inside of water tub 52 and then becomes wet, and the air in a wet state flows downward through air exhaust duct 59 disposed in front of water tub 52 and is supplied to heat pump unit 53.
  • the wet air supplied to heat pump unit 53 is dehumidified by being cooled by evaporator 55 of heat pump unit 53, and then becomes low-temperature dry air.
  • the low-temperature dry air is heated by condenser 56 of heat pump unit 53 and then becomes dry warm air.
  • the conventional drum-type washing and drying machine has a drawback that it is impossible to simultaneously realize the miniaturization of the drum-type washing and drying machine which is obtained by lowering the height of body 51 through lowering of the position of water tub 52 to decrease vibrations, and the acquisition of the favorable drying performance.
  • a drum-type washing and drying machine includes: a water tub which has an opening in a front side of a housing; a drum which is disposed in an inside of the water tub; a motor which drives the drum; an air flow passage which is connected to the water tub; a heat pump device which includes an evaporator and a condenser which are connected to a compressor by way of a pipe passage, the evaporator and the condenser being disposed in an inside of the air flow passage; and an air blower which supplies drying air into the inside of the water tub through the air flow passage.
  • the heat pump device is disposed in a lower part of an inside of the housing, the air blower has a fan accommodating portion for accommodating a fan and an air exhaust portion which is integrally formed with the fan accommodating portion, and discharges air, and the air blower is configured such that the air blower is connected in a communicating manner to the heat pump device by way of a duct which is disposed on a back side of the heat pump device and extends to a front side of the heat pump device, and that an upper portion of the fan accommodating portion is positioned above a lower end portion of a water tub rear portion.
  • the heat pump device and the air blower can be accommodated in the inside of the housing in a compact manner. Further, vibrations generated at the time of spin-drying can be suppressed by lowering the position of the water tub and, at the same time, a drum-type washing and drying machine can be miniaturized by lowering the height of the housing. Still further, it is possible to realize the drum-type washing and drying machine having favorable drying performance by the enhancement of heat exchange efficiency of the heat pump device and the supply of a large amount of air from the air blower.
  • FIGS. 1 to 6 a drum-type washing and drying machine according to the exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 6 .
  • FIG. 1 is a cross-sectional view of a main part of a drum-type washing and drying machine according to an exemplary embodiment of the present invention as viewed from a lateral side.
  • FIG. 2 is a cross-sectional view of the main part of the drum-type washing and drying machine as viewed from a front side.
  • FIG. 3 is a cross-sectional view of the main part of the drum-type washing and drying machine as viewed from a rear side.
  • FIG. 4 is a cross-sectional view of the main part of the drum-type washing and drying machine as viewed from an upper side.
  • FIG. 5 is a partially cut-away, cross-sectional view of the main part of the drum-type washing and drying machine as viewed from a lateral side.
  • FIG. 1 is a cross-sectional view of a main part of a drum-type washing and drying machine according to an exemplary embodiment of the present invention as viewed from a lateral side.
  • FIG. 2 is a cross-sectional view of the
  • FIGS. 1 to 6 are schematic views of the system of a heat pump device of the drum-type washing and drying machine.
  • the lateral side, the upper side, the frontward, and the rearward of the drum-type washing and drying machine mean the directions indicated by arrows in FIGS. 1 to 6 .
  • the drum-type washing and drying machine of this exemplary embodiment is configured such that at least water tub 2, drum 4, air flow passage 16, heat pump device 17, air blower 24 and the like are accommodated in the inside of housing 1.
  • Housing 1 includes at least rear surface 1a, front surface 1b, right wall 1c and left wall 1d which form side walls, upper surface 1e and the like. Housing 1 forms an outer ward of the drum-type washing and drying machine.
  • water tub 2 having an approximately cylindrical shape (including a cylindrical shape) which includes opening 7 in a front side of housing 1, and stores washing water therein.
  • Water tub 2 is supported in the inside of housing 1 such that water tub 2 is resiliently supported by a pair of left and right dampers 5 (see FIG. 2 or FIG. 3 ) from below, and is suspended from above by a pair of left and right springs 6 (see FIG. 1 or FIG. 3 ).
  • water tub 2 is disposed in a frontwardly and upwardly inclined manner such that a water tub 2 side where an opening 7 formed in a front surface of water tub 2 is disposed is higher than other portions of water tub 2.
  • Drum 4 has a bottomed cylindrical shape, and is disposed in the inside of water tub 2 such that drum 4 is rotatable about rotary shaft 3 extending in the forward and backward directions.
  • a large number of through holes 12 which are communicated with the inside of water tub 2 are formed on peripheral side surface of drum 4, and a plurality of baffles 13 which project inward are formed on the peripheral side surface of drum 4.
  • bearing 8 which rotatably supports rotary shaft 3 of drum 4 and pulley 9 are disposed.
  • a drive force of motor 10 which is fixedly mounted on a lower portion of the outer periphery of water tub 2 is transmitted to drum 4 connected to rotary shaft 3 by way of belt 11 and pulley 9 thus rotating drum 4.
  • motor 10 is mounted such that rotary shaft 10a of motor 10 is disposed parallel to rotary shaft 3 of drum 4 and close to water tub rear portion 2c of water tub 2.
  • motor 10 is disposed at a position obliquely downward from the outer periphery of water tub 2 on a left side of vertical line L which passes rotary shaft 3 of drum 4 as viewed from a front side of the drum-type washing and drying machine, and in a lower portion of the inside of housing 1 on a rear surface 1a side.
  • air supply opening 14 for introducing drying air (hereinafter, abbreviated as "air") is formed in water tub rear portion 2c of water tub 2 and, as shown in FIG. 1 , air exhaust opening 15 for discharging air is formed in an upper front portion of water tub 2.
  • Air flow passage 16 through which air flows is connected to air supply opening 14 and air exhaust opening 15 in a communicating manner.
  • heat pump device 17 includes compressor 18, condenser 19, expansion device 20, and evaporator 21 which are connected to each other by pipe passage 22 such that a refrigerant circulates therethrough.
  • Compressor 18 compresses the refrigerant.
  • Condenser 19 radiates heat of the refrigerant compressed by compressor 18 so that air circulating in air flow passage 16 is heated.
  • Expansion device 20 includes, for example, a capillary tube or a valve, and reduces a pressure of the high-pressure refrigerant.
  • Evaporator 21 takes heat from the surrounding by the refrigerant which becomes a low pressure due to the reduction of pressure by expansion device 20 thus cooling air circulating in air flow passage 16.
  • Evaporator 21 and condenser 19 of heat pump device 17 are disposed in the inside of air flow passage 16.
  • a heat pump cycle is realized by allowing the refrigerant which flows in pipe passage 22 of heat pump device 17 to flow in a circulating manner in the direction indicated by an arrow A in FIG. 6 .
  • casing 23 which constitutes a part of air flow passage 16.
  • Casing 23 includes inlet opening 23a through which air flows into casing 23 from an upper side, and outlet opening 23b through which air which passes evaporator 21 and condenser 19 flows out rearward from casing 23.
  • Inlet opening 23a of casing 23 is connected to air exhaust duct 16a which constitutes air flow passage 16 in a communicating manner, and is connected to air exhaust opening 15 formed in an upper front portion of water tub 2.
  • outlet opening 23b of casing 23 is detachably connected to air blower 24 in a communicating manner by way of duct 16b which constitutes air flow passage 16.
  • rear end portion 16ba of duct 16b is fixedly mounted on air supply side 24d of air blower 24, and front end portion 16bb of duct 16b is detachably connected to outlet opening 23b of casing 23 by way of a fixing jig (not shown) or by insertion, for example.
  • a fixing jig not shown
  • insertion for example.
  • heat pump device 17 is disposed in a lower space formed between housing 1 at a position closer to right wall 1c of housing 1 than to left wall 1d of housing 1, for example.
  • heat pump device 17 is disposed at the position on the right side of vertical line L which passes rotary shaft 3 of drum 4 as viewed from a front side which is a front surface 1b of housing 1.
  • evaporator 21 and condenser 19 of heat pump device 17 are disposed close to right wall 1c which constitutes one side wall of housing 1 such that air flows rearward in heat pump device 17.
  • motor 10 which is positioned on the left side of vertical line L which passes rotary shaft 3 of drum 4 and heat pump device 17 which is positioned on the right side of vertical line L are disposed in a spaced-apart manner from each other on the side of left wall 1d which is the side wall of housing 1 and on the side of right wall 1c which is also the side wall of housing 1 respectively.
  • air blower 24 includes at least fan accommodating portion 24e having an approximately cylindrical shape (including a cylindrical shape), air exhaust portion 24f, fan 24a and the like. Air exhaust portion 24f is integrally formed with fan accommodating portion 24e. Fan 24a is accommodated in the inside of fan accommodating portion 24e.
  • Air blower 24 is disposed at the position on a side where right wall 1c which constitutes one of side walls of housing 1 in which heat pump device 17 is disposed is disposed. To be more specific, air blower 24 is disposed on a back surface of heat pump device 17 (on a side where rear surface 1a of housing 1 is disposed) in a state where the axial direction of rotary shaft 24b of fan 24a is directed toward heat pump device 17.
  • air blower 24 is disposed such that upper portion 24c of fan accommodating portion 24e in a diametrical direction is positioned above lower end portion 2a of water tub rear portion 2c of water tub 2 by approximately H.
  • air exhaust portion 24f of air blower 24 is connected in a communicating manner to one end of air supply duct 16c which constitutes air flow passage 16, and the other end of air supply duct 16c is connected to air supply opening 14 formed in water tub rear portion 2c of water tub 2.
  • Air supply duct 16c is formed in an arcuate shape along an outer periphery of pulley 9 on a rear surface of water tub rear portion 2c of water tub 2, for example. Air supplied from air blower 24 is supplied to the inside of water tub 2 from air supply opening 14 through air supply duct 16c in the direction indicated by an arrow in the figure.
  • Outlet opening 23b of casing 23 which accommodates heat pump device 17 extends frontward from air blower 24, and is detachably connected in a communicating manner to air supply side 24d of air blower 24 by way of duct 16b having a cross-sectional shape thereof formed into a flattened shape, for example.
  • outlet opening 23b of casing 23 and front end portion 16bb of duct 16b are connected to each other at a position in front of lower end portion 2a of water tub rear portion 2c of water tub 2 (the side of front surface 1b of housing 1). Due to such a configuration, casing 23 which accommodates heat pump device 17 mounted in housing 1 can be taken out from front surface 1b of housing 1.
  • housing 1 can be miniaturized.
  • heat pump device 17 may be mounted in a front-side high posture such that a side of heat pump device 17 where inlet opening 23a of casing 23 is disposed, that is, a side of heat pump device 17 where heat pump device 17 is connected to air exhaust duct 16a of air flow passage 16 becomes higher than other portions of heat pump device 17. Due to such a configuration, a distance of air exhaust duct 16a from air exhaust opening 15 of water tub 2 to inlet opening 23a of heat pump device 17 can be shortened. It is preferable to mount compressor 18 of heat pump device 17 in an erected manner approximately vertically (including vertically). In this case, compressor 18 can be operated in a more stable manner.
  • dry filter 25 is disposed on air exhaust duct 16a of air flow passage 16 in the vicinity of air exhaust opening 15 of water tub 2. Due to such a configuration, lint such as waste threads contained in air which flows into air exhaust duct 16a from air exhaust opening 15 can be caught.
  • dry filter 25 is detachably disposed in an upper part in housing 1, and is mounted such that dry filter 25 can be taken out from an upper surface 1e side of housing 1.
  • washing water in water tub 2 can be discharged to the outside of the washing and drying machine through drain passage 27 which is connected in a communicating manner to drain opening 26 formed in the vicinity of a bottom portion of water tub 2.
  • drain filter 28 which collects a foreign material from washing water is disposed in the midst of drain passage 27.
  • drain filter 28 is detachably mounted on a front portion in the inside of housing 1 in front of motor 10, and drain filter 28 is mounted in a detachable manner from a side of housing 1 where front surface 1b is disposed.
  • drain pump 33 which discharges a dehumidified water which is generated by evaporator 21 is disposed on a bottom portion of casing 23 of heat pump device 17. Drain pump 33 is connected in a communicating manner to drain pipe 34 which is connected to drain passage 27, and discharges the dehumidified water which is generated by evaporator 21 to the outside of the washing and drying machine from drain passage 27 through drain pipe 34.
  • base frame 35 having approximately quadrangular shape (including a quadrangular shape) and having front portion 35a, recessed portion 35b and rear portion 35c, for example, is disposed on bottom portion 1g of housing 1.
  • Base frame 35 supports the housing 1 in such a manner that bottom portions 1g of four surfaces including front surface 1b, rear surface 1a, right wall 1c and left wall 1d which constitute housing 1 are fixed to base frame 35.
  • Lower ends of dampers 5 which resiliently support water tub 2 from below are fixedly disposed on base frame 35.
  • Heat pump device 17 is disposed on front portion 35a of base frame 35, and drain pump 33 disposed below heat pump device 17 is accommodated in a space defined by recessed portion 35b of base frame 35. As shown in FIG.
  • compressor 18 of heat pump device 17 is disposed on a front side of evaporator 21 which faces front surface 1b of housing 1, that is, on a side where inlet opening 23a through which air flows into casing 23.
  • compressor 18 of heat pump device 17 is disposed on front portion 35a of base frame 35 in the vicinity of right wall 1c of housing 1.
  • air blower 24 is disposed on rear portion 35c of base frame 35. Due to such a configuration, compressor 18 and air blower 24 are disposed on a front portion and a rear portion of base frame 35 respectively thus ensuring a balance in weight.
  • door 29 which opens or closes opening 7 of water tub 2 is disposed on front surface 1b of housing 1, and takeout opening 1f through which heat pump device 17 is taken out is formed below door 29 on the side of front surface 1b of housing 1.
  • Takeout opening 1f is covered by detachable cover 30 from the side of front surface 1b of housing 1.
  • Cover 30 is detachably mounted on housing 1 by screws 31.
  • outlet opening 23b of casing 23 of heat pump device 17 is inserted into front end portion 16bb of duct 16b.
  • heat pump device 17 can be detachably held in a state where duct 16b and heat pump device 17 are connected to each other.
  • FIGS. 7A to 7C are cross-sectional views of a main part for illustrating an operation of removing the heat pump device of the drum-type washing and drying machine.
  • casing 23 which accommodates evaporator 21 and condenser 19 of heat pump device 17 is pushed, from front surface 1b of housing 1, by pressing portion 32 of cover 30 mounted on base frame 35 by screws 31. Accordingly, casing 23 is accommodated in housing 1 in a lower part of housing 1 and above base frame 35 in a state where outlet opening 23b of casing 23 is inserted into and connected to front end portion 16bb of duct 16b of air flow passage 16.
  • outlet opening 23b of casing 23 is inserted into and connected to front end portion 16bb of duct 16b which opens toward the front side in the approximately horizontal state (including horizontal state).
  • casing 23 is disposed on base frame 35 and below water tub 2, and air exhaust duct 16a is connected to inlet opening 23a of casing 23.
  • drain pump 33 is accommodated in the space formed in recessed portion 35b of base frame 35. Accordingly, it is possible to accommodate drain pump 33 below heat pump device 17 in a compact manner. Accordingly, heat pump device 17 can be taken out without moving housing 1 which constitutes drum-type washing and drying machine from an installation place. As a result, a maintenance operation of heat pump device 17 can be performed easily in a narrow place.
  • water tub 2 is formed into a bottomed cylindrical shape coaxially with rotary shaft 3 of drum 4, and is disposed in a frontwardly and upwardly inclined manner.
  • water tub 2 is disposed in an inclined manner such that lower end portion 2a of water tub rear portion 2c of water tub 2 is positioned ahead of upper end portion 2b of water tub rear portion 2c of water tub 2. Due to such a configuration, it is possible to ensure a space for mounting air blower 24 between rear surface 1a of housing 1 and water tub rear portion 2c of water tub 2.
  • control part 36 is disposed on a front upper side within upper surface 1e of housing 1, and controls, for example, compressor 18 of heat pump device 17, motor 10 which rotatably drives drum 4, and air blower 24 which supplies air. Accordingly, control part 36 sequentially controls respective steps including washing, rinsing, spin-drying and drying.
  • the drum-type washing and drying machine according to this exemplary embodiment has the above-mentioned configuration.
  • a user opens door 29, and puts laundry such as clothing into the inside of drum 4 through opening 7. Then, the user closes door 29, and selects a desired operation program by pushing an operation button (not shown) so that a washing step operation is started.
  • control part 36 drives motor 10 after determining that door 29 is closed. Then, control part 36 determines an amount of clothing put into drum 4 based on load information of motor 10 corresponding to the rotation of drum 4.
  • control part 36 starts storing of water into water tub 2 by releasing a water supply valve (not shown).
  • a water supply valve not shown.
  • control part 36 rotates drum 4 for a predetermined time in accordance with a predetermined program by controlling the rotation of motor 10, for example, by repeating the normal rotation and reverse rotation of motor 10.
  • the washing step is finished when a predetermined time elapses, and a rinsing step is performed.
  • a rinsing operation is performed by the water discharge, the water supply, the driving of motor 10 and the like.
  • motor 10 is driven for a predetermined time in a state where water tub 2 is filled with water thus performing rinsing where detergent components and dirt components sticking to clothing C are moved into water which is not dirty thus removing dirt. Thereafter, when a predetermined time elapses, a first-time rinsing operation is finished.
  • control part 36 rotates drum 4 at a high speed (for example, 1400 rpm) for a predetermined time by driving motor 10.
  • a centrifugal force applied to clothing C is increased, so that clothing C sticks to an inner peripheral surfaces of drum 4. Accordingly, moisture contained in clothing C is removed from clothing C by a centrifugal force, and is moved to the inside of water tub 2 through through-holes 12 formed in drum 4. Moisture moved to the inside of water tub 2 is discharged to the outside of the washing and drying machine through drain opening 26 by way of drain passage 27.
  • heat pump device 17 is disposed close to right wall 1c which is the side wall of housing 1 and hence, heat pump device 17 and water tub 2 can be disposed in a spaced-apart manner from each other. Further, by arranging air blower 24 behind heat pump device 17, upper portion 24c of fan accommodating portion 24e of air blower 24 can be disposed above lower end portion 2a of water tub rear portion 2c of water tub 2. Accordingly, a large-sized fan can be used as fan 24a of air blower 24.
  • control part 36 rotates drum 4 by rotating motor 10, and rotates air blower 24. Due to such an operation, the flow of air which circulates in the direction indicated by an arrow B shown in FIG. 2 is generated.
  • Air is, firstly, supplied to the inside of drum 4 through air supply opening 14 formed in water tub rear portion 2c of water tub 2 from air supply duct 16c of air flow passage 16.
  • drum 4 is rotatably driven by motor 10 by way of belt 11, and clothing C is brought into contact with supplied air in a state where clothing C is stirred in drum 4.
  • the warm air passes air supply duct 16c again and is supplied to the inside of drum 4 through air supply opening 14.
  • Warm air becomes wet air by taking moisture from clothing C when the warm air passes through clothing C.
  • a foreign material such as lint is removed from the wet air when the wet air passes through dry filter 25 from air exhaust opening 15, and wet air is introduced into evaporator 21 of heat pump device 17 through exhaust duct 16a.
  • wet air passes through evaporator 21 of heat pump device 17
  • sensible heat and latent heat are taken from the wet air so that the wet air is dehumidified. That is, wet air is separated into dry air and a dehumidified water.
  • the dry air becomes warm air by being heated by condenser 19, and the warm air is again supplied to the inside of drum 4 by air blower 24.
  • the dehumidified water generated in evaporator 21 of heat pump device 17 is discharged to the outside of the washing and drying machine through drain pipe 34 and drain passage 27 by drain pump 33 disposed on a lower portion of heat pump device 17.
  • wet air which takes moisture from clothing C and is discharged from air exhaust opening 15 passes through exhaust duct 16a which is positioned in front of water tub 2, and extends downward from above water tub 2 along right wall 1c of housing 1. Air which passes through exhaust duct 16a flows into the inside of casing 23 through inlet opening 23a positioned in the vicinity of front surface 1b in housing 1. Air which flows into the inside of casing 23 flows toward a rear surface 1a side from a front surface 1b side in housing 1, and passes through evaporator 21 and condenser 19 of heat pump device 17. Thereafter, air which reaches air blower 24 disposed in the vicinity of rear surface 1a in housing 1 passes through air supply duct 16c extending upward behind water tub 2, and is introduced into water tub 2 through air supply opening 14.
  • air discharged through air exhaust opening 15 flows rearward through heat pump device 17 disposed below water tub 2, and reaches air blower 24 on a right wall 1c side in housing 1.
  • air blower 24 is disposed behind heat pump device 17. Air blower 24 is connected in a communicating manner to heat pump device 17 by way of duct 16b extending frontward from air blower 24. Further, upper portion 24c of air blower 24 is configured to be positioned above lower end portion 2a of water tub rear portion 2c of water tub 2.
  • heat pump device 17 and air blower 24 can be disposed at a lower portion in the inside of housing 1 in a compact manner.
  • the position of water tub 2 can be lowered and hence, vibrations generated at the time of spin drying can be suppressed and, at the same time, the height of housing 1 can be lowered and hence, housing 1 can be miniaturized.
  • motor 10 which rotatably drives drum 4 is disposed at the lower portion of water tub 2 on a left wall 1d side in housing 1, and heat pump device 17 is disposed in a space defined between a right wall 1c side in housing 1 and water tub 2. That is, motor 10 and heat pump device 17 are disposed in a broad space formed between water tub 2 having a cylindrical shape and right wall 1c and left wall 1d of housing 1 in a spaced-apart manner on left and right sides of vertical line L shown in FIG. 2 . Due to such a configuration, water tub 2 is disposed such that the position of water tub 2 is lowered downward in the inside of housing 1.
  • housing 1 can be lowered. As a result, housing 1 can be militarized so that the compact drum-type washing and drying machine can be realized.
  • compressor 18 of heat pump device 17 is disposed on a front side of evaporator 21, and compressor 18 is disposed on front portion 35a of base frame 35.
  • Air blower 24 is disposed on rear portion 35c of base frame 35. Due to such a configuration, compressor 18 and air blower 24 can be disposed in front of and behind the base frame 35 thus ensuring a balance in weight.
  • motor 10 and compressor 18 of heat pump device 17 both having a large weight are disposed at diagonal positions from each other at the lower portion in housing 1. Due to such a configuration, the uniformity of balance in weight of the drum-type washing and drying machine can be enhanced and hence, operability of the installation of the drum-type washing and drying machine can be enhanced and, at the same time, the stability of the drum-type washing and drying machine can be enhanced by suppressing vibrations at the time of performing a washing and drying operation.
  • air blower 24 is disposed behind heat pump device 17, and air blower 24 is disposed such that the axial direction of rotary shaft 24b of fan 24a is directed toward heat pump device 17. Due to such a configuration, a space is formed between and below water tub rear portion 2c of frontwardly and upwardly inclined water tub 2 and the rear surface 1a of housing 1. Accordingly, upper portion 24c of fan accommodating portion 24e in the diametrical direction can be disposed above lower end portion 2a of water tub rear portion 2c of water tub 2. As a result, large-diameter air blower 24 can be disposed in a limited space in housing 1 in a compact manner, and air supply ability can be enhanced thus enhancing drying performance.
  • takeout opening 1f is formed in front surface 1b of housing 1. Due to such a configuration, heat pump device 17 can be removed from or installed in the housing 1 through takeout opening 1f formed in front surface 1b of housing 1 without moving housing 1 from an installation place. As a result, the maintenance operation of heat pump device 17 can be performed easily.
  • duct 16b which constitutes a part of air flow passage 16 is formed into a flattened shape.
  • the present invention is not limited to such an example.
  • duct 16b may be formed into a cylindrical shape, for example. Due to such a configuration, outlet opening 23b of casing 23 and front end portion 16bb of duct 16b can be easily connected to each other and, at the same time, the space between water tub 2 and housing 1 can be effectively utilized.
  • the drum-type washing and drying machine includes: the water tub which has the opening in the front side of the housing; the drum which is disposed in the inside of the water tub; the motor which drives the drum; the air flow passage which is connected to the water tub; the heat pump device which includes the evaporator and the condenser which are connected to the compressor by way of the pipe passage, the evaporator and the condenser being disposed in the inside of the air flow passage; and the air blower which supplies drying air into the inside of the water tub through the air flow passage.
  • the heat pump device is disposed at the lower part of the inside of the housing, the air blower has the fan accommodating portion for accommodating the fan and the air exhaust portion which is integrally formed with the fan accommodating portion, and discharges air, and the air blower is configured such that the air blower is connected in a communicating manner to the heat pump device by way of the duct which is disposed on the back surface side of the heat pump device and extends to the front side of the heat pump device, and that the upper portion of the fan accommodating portion is positioned above the lower end portion of the water tub rear portion.
  • the heat pump device and the air blower can be accommodated in the inside of the housing in a compact manner. Further, vibrations generated at the time of spin-drying can be suppressed by lowering the position of the water tub and, at the same time, a drum-type washing and drying machine can be miniaturized by lowering the height of the housing. Still further, it is possible to realize the drum-type washing and drying machine having favorable drying performance due to the enhancement of heat exchange efficiency of the heat pump device and the supply of a large amount of air by the air blower.
  • the water tub is disposed in an inclined manner such that the lower end portion of the water tub rear portion is positioned ahead of the upper end portion of the water tub rear portion. Due to such a configuration, the space for mounting the air blower can be ensured between the rear surface of the housing and the water tub rear portion. As a result, the thickness of the drum type washing and drying machine can be decreased by decreasing the depth of the housing and hence, the mountability of the air blower in a limited space can be enhanced.
  • the compressor of the heat pump device is disposed on a front side of the evaporator which faces the front surface of the housing. Due to such a configuration, the compressor having a large height can be disposed in the space at the corner portion formed by the front wall and two sides of side walls. As a result, the height of the housing can be lowered. Further, in taking out the heat pump device from the front side of the housing, it is possible to avoid the interference between the heat pump device and other parts disposed in the inside of the housing. Accordingly, the operability at the time of taking out the heat pump device can be enhanced.
  • the evaporator and the condenser of the heat pump device are disposed close to the side wall of the housing.
  • the heat pump device can be disposed in the space defined by the water tub and the side wall of the housing close to either one of the right wall and left wall of the housing.
  • the water tub can be disposed at the lower position and hence, the height of the housing can be decreased.
  • the heat pump device and the duct are connected to each other at a position closer to the front surface side of the housing than the lower end portion of the water tub rear portion, and the cross-sectional shape of the duct shows a flattened shape.
  • the takeout opening for taking out the heat pump device is formed in the front surface of the housing.
  • the heat pump device can be taken out through the takeout opening formed in the front surface of the housing without moving the housing from the installation place. As a result, the maintenance operation of the heat pump device can be performed more easily.
  • the takeout opening through which the heat pump device is taken out and the detachable cover which covers the takeout opening are disposed in the lower side of the front side of the housing.
  • the pressing portion, which holds the heat pump device and the duct into a connection state at the time of mounting the cover, is disposed to the cover.
  • the heat pump device is disposed such that the front side of the heat pump device which faces the front surface of the housing is higher than other portions of the heat pump device.
  • the distance between the air exhaust opening and the heat pump device can be further shortened.
  • the base frame is disposed on the bottom portion of the housing, and the heat pump device is disposed on the front side of the base frame.
  • the heat pump device can be taken out or inserted into the housing from the front side through the takeout opening formed in the housing without cutting away a front portion of the base frame.
  • ruggedness of the washing and drying machine can be ensured without weakening a mechanical strength of the base frame.
  • the base frame is disposed on the bottom portion of the housing, the compressor of the heat pump device is disposed on a front side of the base frame, and the compressor of the heat pump device is disposed on the rear side of the base frame.
  • the base frame having the recessed portion is disposed on the bottom portion of the housing
  • the heat pump device includes the drain pump which discharges a dehumidified water below the evaporator, and the drain pump is accommodated in a space of the recessed portion formed in the base frame. Due to such a configuration, the drain pump can be accommodated below the heat pump device in a compact manner.
  • the present invention is usefully applicable to a technical field such as a drum-type washing and drying machine which is requested to satisfy the miniaturization of a housing and the enhancement of drying performance.

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)
EP13740696.3A 2012-01-27 2013-01-24 Trommelwaschmaschine und trockner Withdrawn EP2811058A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012015172A JP2013153839A (ja) 2012-01-27 2012-01-27 ドラム式洗濯乾燥機
PCT/JP2013/000338 WO2013111589A1 (ja) 2012-01-27 2013-01-24 ドラム式洗濯乾燥機

Publications (2)

Publication Number Publication Date
EP2811058A1 true EP2811058A1 (de) 2014-12-10
EP2811058A4 EP2811058A4 (de) 2015-01-14

Family

ID=48873316

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EP13740696.3A Withdrawn EP2811058A4 (de) 2012-01-27 2013-01-24 Trommelwaschmaschine und trockner

Country Status (4)

Country Link
EP (1) EP2811058A4 (de)
JP (1) JP2013153839A (de)
CN (1) CN104080966A (de)
WO (1) WO2013111589A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034674A1 (de) * 2014-12-17 2016-06-22 Miele & Cie. KG Vorrichtung und verfahren zum bereitstellen von heizleistung für ein wäschebehandlungsgerät und wäschebehandlungsgerät
US11060236B2 (en) 2019-10-03 2021-07-13 Haier Us Appliance Solutions, Inc. Dryer appliance and method of operating the same based on the relative humidity of drum exit air

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Publication number Priority date Publication date Assignee Title
EP3467187B1 (de) 2017-10-09 2021-12-22 Whirlpool Corporation Zur verwendung in einer maschine zum trocknen von wäsche konfigurierter filter und mit solch einem filter ausgestattete maschine zum trocknen von wäsche
AU2019265183B2 (en) * 2018-05-08 2022-10-27 Lg Electronics Inc. Clothes processing apparatus

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DE4212697A1 (de) * 1992-04-16 1993-10-21 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
DE4212700A1 (de) * 1992-04-16 1993-10-21 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
JP2005304988A (ja) * 2004-04-26 2005-11-04 Matsushita Electric Ind Co Ltd 洗濯乾燥機
EP1961852A1 (de) * 2005-11-18 2008-08-27 Kabushiki Kaisha Toshiba Waschtrockner
WO2008155263A1 (de) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer wärmepumpe sowie verfahren zu seinem betrieb
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034674A1 (de) * 2014-12-17 2016-06-22 Miele & Cie. KG Vorrichtung und verfahren zum bereitstellen von heizleistung für ein wäschebehandlungsgerät und wäschebehandlungsgerät
US11060236B2 (en) 2019-10-03 2021-07-13 Haier Us Appliance Solutions, Inc. Dryer appliance and method of operating the same based on the relative humidity of drum exit air

Also Published As

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WO2013111589A1 (ja) 2013-08-01
EP2811058A4 (de) 2015-01-14
JP2013153839A (ja) 2013-08-15
CN104080966A (zh) 2014-10-01

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