WO2019167422A1 - 洗濯機および加熱水生成装置 - Google Patents

洗濯機および加熱水生成装置 Download PDF

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Publication number
WO2019167422A1
WO2019167422A1 PCT/JP2018/048460 JP2018048460W WO2019167422A1 WO 2019167422 A1 WO2019167422 A1 WO 2019167422A1 JP 2018048460 W JP2018048460 W JP 2018048460W WO 2019167422 A1 WO2019167422 A1 WO 2019167422A1
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WO
WIPO (PCT)
Prior art keywords
washing
heating device
tub
water
heating
Prior art date
Application number
PCT/JP2018/048460
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English (en)
French (fr)
Japanese (ja)
Inventor
土屋　法宏
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to SG11202007269YA priority Critical patent/SG11202007269YA/en
Priority to CN201880089859.0A priority patent/CN111742094B/zh
Publication of WO2019167422A1 publication Critical patent/WO2019167422A1/ja
Priority to PH12020551335A priority patent/PH12020551335A1/en

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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature
    • 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
    • D06F23/00—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 
    • D06F23/04—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 rotating or oscillating about a vertical axis
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/52—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to electric heating means, e.g. temperature or voltage

Definitions

  • the present invention relates to a washing machine for washing clothes and the like using hot water and a heated water generating apparatus.
  • FIG. 15 is a cross-sectional view of a conventional washing machine.
  • a water supply port 62 that supplies water to the water tank 63 and a switching valve 66 that branches a water supply path from the water supply port 62 to the water tank 63 into a main water path 64 and a bypass path 65 are provided.
  • a heater 67 is provided in the middle of the bypass path 65.
  • FIG. 16 is a perspective view of a conventional water tank.
  • a recess 73 is formed at the bottom, and a heater 72 is disposed so as to be positioned in the recess 73.
  • a fixing portion 74 for fixing the heater 72 in the recess 73 is formed on the outer peripheral side of the bottom of the water tank 71.
  • a washing tub (not shown) is rotatably disposed in the water tub 71. During the dehydration operation, the washing tub rotates in the direction of the arrow in FIG. The flow of the washing liquid is generated in the direction of the arrow in FIG. 16 by the rotation.
  • the support portion of the heater 72 of the fixed portion 74 is formed in a direction orthogonal to the flow of the washing liquid, the washing liquid collides with the heater 72 support portion to generate turbulent flow, and the washing tub can be rotated well.
  • vibration there was a problem of vibration.
  • dehydration failure occurs due to increased rotational resistance due to the occurrence of bubbles.
  • the present invention provides a washing machine that can suppress the occurrence of vibrations and abnormal bubbles during dehydration operation.
  • the washing machine of the present invention includes a housing, a water tub disposed in the housing, a washing tub rotatably disposed in the water tub, a driving device that rotationally drives the laundry tub, and a water tub disposed in the water tub. And a heating device that heats the washing liquid.
  • the heating device is attached to an attachment portion formed in the water tub, and the attachment portion is formed by inclining a first side surface substantially orthogonal to the rotation direction of the washing tub during dehydration to the rotation direction side of the washing tub. .
  • This configuration can provide a washing machine that can suppress the occurrence of vibrations and abnormal bubbles during dehydration operation.
  • FIG. 1 is an exploded perspective view seen from the back side of the washing machine according to the first embodiment of the present invention with the door removed.
  • FIG. 2 is a sectional view of the washing machine according to the first embodiment of the present invention.
  • FIG. 3 is a sectional view showing a circulation state of the washing liquid in the washing machine according to the first embodiment of the present invention.
  • FIG. 4 is a plan view of the water tub of the washing machine as viewed from above according to the first embodiment of the present invention.
  • FIG. 5 is an enlarged view of a main part of the water tub of the washing machine according to the first embodiment of the present invention.
  • FIG. 6 is the top view which looked at the water tank of the state which removed the heating plate of the water tank of the washing machine in the 1st Embodiment of this invention from the upper direction.
  • 7 is a cross-sectional view taken along line 7-7 of FIG.
  • FIG. 8 is an enlarged plan view of a main part of the water tub of the washing machine according to the first embodiment of the present invention.
  • FIG. 9 is an enlarged cross-sectional view of a main part of the water tub of the washing machine according to the first embodiment of the present invention.
  • FIG. 10 is the perspective view which looked at the water tank of the washing machine in the 1st Embodiment of this invention from the downward direction.
  • FIG. 11 is the perspective view which looked at the water tank of the washing machine in the 1st Embodiment of this invention from upper direction.
  • FIG. 12 is an enlarged plan view of a main part when the water tub of the washing machine according to the first embodiment of the present invention is viewed from above.
  • FIG. 13 is a principal part enlarged plan view which looked at the water tank of the washing machine in the 2nd Embodiment of this invention from upper direction.
  • FIG. 14 is an enlarged cross-sectional view of a main part of a water tub of a washing machine according to the second embodiment of the present invention.
  • FIG. 15 is a cross-sectional view of a conventional washing machine.
  • FIG. 16 is a perspective view of a water tank of a conventional washing machine.
  • FIG. 1 is an exploded perspective view seen from the back of the washing machine according to the present embodiment.
  • FIG. 2 is a longitudinal sectional view of the washing machine according to the present embodiment.
  • the housing 1 is formed in a square shape having a front surface, both side surfaces, and a back surface, an opening 2 is formed on the back surface side, and the opening 2 is closed by a door body 3 so as to be opened and closed. By removing the door body 3, the inside of the housing 1 can be seen from the opening 2.
  • the housing 1 since the opening 2 is formed on the back side of the housing 1, when performing maintenance, the housing 1 is rotated to a position where the inside of the housing 1 can be maintained through the opening 2, and the housing 1 is rotated. Maintenance of the inside of the body 1 is performed.
  • the door body 3 By arranging the door body 3 on the back, the door 3 does not enter the user's field of view when the washing machine is installed, and the aesthetic appearance is not impaired.
  • the opening 2 is formed on the back side of the housing 1, but it may be formed on the side surface.
  • the amount of movement of the housing 1 can be reduced during maintenance, and the inspection workability can be improved.
  • An upper case 4 is mounted above the housing 1.
  • a space surrounded by the casing 1 and the upper case 4 supports a bottomed cylindrical water tank 5 formed of a flame-retardant synthetic resin, and a rotating shaft 6 is disposed on the central axis of the water tank 5.
  • a washing tub 7 connected to the rotary shaft 6 is housed inside the water tub 5.
  • a pulsator 8 connected to the rotating shaft 6 is disposed at the bottom of the washing tub 7.
  • a motor 9 as a driving device is disposed below the water tank 5, a motor 9 as a driving device is disposed.
  • a rotation shaft 6 is connected to the motor 9, and the washing tub 7 and the pulsator 8 are rotationally driven by the motor 9.
  • a loading port 10 for loading laundry into the washing tub 7 is formed on the upper surface of the water tub 5.
  • the insertion port 10 is closed by a lid 11 so as to be freely opened and closed.
  • the upper case 4 is formed with an outer loading port (not shown) for loading laundry into the washing tub 7, and the outer loading port is closed by an outer lid 12 so as to be opened and closed.
  • the washing tub 7 is made of a metal having corrosion resistance.
  • the washing tub 7 includes a cylindrical side wall 7a made of stainless steel and a bottom wall 7b made of a flame-retardant synthetic resin.
  • the side wall 7a and the bottom wall 7b It is configured to be fixed integrally.
  • the washing tub 7 is provided with a large number of dewatering holes 13 in the side wall 7a, and an annular fluid balancer 14 for reducing dehydration vibration is attached to the upper part.
  • the washing tub 7 is provided with a circulation channel cover 15 at a position opposite to the side wall 7 a, and a circulation channel (not shown) is formed between the side surface of the washing tub 7 and the circulation channel cover 15.
  • the washing tub 7 is provided with a pair of circulation channel covers 15 to form two circulation channels opposite to each other.
  • the circulation channel cover 15 and the circulation channel are preferably formed in the same shape in order to suppress the occurrence of imbalance when the washing tub 7 rotates, but the shapes may be varied as necessary.
  • discharge ports 16 are formed at positions corresponding to the upper and middle portions of the washing tub 7.
  • the discharge port 16 may be formed only at one of the positions corresponding to the upper part or the middle part of the washing tub 7.
  • a blade 8a is integrally formed on the lower surface side of the pulsator 8, and when the pulsator 8 is rotated by the motor 9, the washing water is pushed out to the outer peripheral side by the centrifugal force of the blade 8a, circulates in the circulation channel, and circulates.
  • the washing liquid is discharged and sprinkled from the outlet 16 of the water channel into the washing tub 7.
  • a recess 17 is formed in a substantially arc shape around the rotation shaft 6 at the bottom of the water tank 5, and the bottom of the water tank 5 is formed so as to be gradually lowered toward the recess 17.
  • a drain port 18 is formed at one end of the recess 17, and the bottom surface of the recess 17 is formed so as to be gradually lowered toward the drain port 18.
  • the drain port 18 is formed in the concave portion 17 at a position on the leading side in the rotational direction when the washing tub 7 is dehydrated.
  • the rotation direction during the dehydration of the washing tub 7 is a clockwise direction in the present embodiment when the washing tub 7 is viewed from above, and is an arrow A direction shown in FIG.
  • a mounting portion 20 to which the heating device 19 is attached is integrally bulged from the bottom of the recess 17 upward.
  • the heating device 19 is for heating the washing water supplied into the water tank 5 and is constituted by a heater.
  • the mounting portion 20 of the heating device 19 is formed from the side surface of the water tank 5 to the concave portion 17 and bulges upward from the bottom surface of the concave portion 17.
  • the mounting portion 20 is formed so that the top surface is substantially the same height as the bottom surface of the water tank 5 or slightly higher than the bottom surface of the water tank 5.
  • the attachment portion 20 has a first side surface 20a that is substantially orthogonal to the arrow A that is the rotation direction of the washing tub 7, and a second side surface 20b that is substantially orthogonal to the first side surface 20a.
  • the first side surface 20 a is configured to incline toward the rotation direction side of the washing tub 7 as it goes upward from the bottom surface side of the recess 17.
  • the second side surface 20b is formed in a substantially vertical plane, and the second side surface 20b is formed with a mounting opening 21 into which the heating device 19 is inserted from the outside of the water tank 5 (FIGS. 7 and 7). 8).
  • the heating device 19 has heater wires formed in a meandering shape, and both ends are fixed to a mounting plate 22 having an insulating and heat insulating function.
  • a temperature sensor 23 composed of a thermistor is mounted on the mounting plate 22, and the temperature of the heating device 19 is detected by the temperature sensor 23.
  • the temperature sensor 23 is disposed at substantially the center position of both end portions of the heater wire so that the temperature of the heating device 19 can be accurately detected.
  • a sealing material (not shown) is provided on the outer peripheral portion of the mounting plate 22, and the mounting plate 22 is watertightly attached to the periphery of the mounting opening 21 on the second side surface 20 b of the mounting portion 20 by the sealing material.
  • the aquarium 5 is attached to the housing 1 so that the mounting opening 21 of the mounting portion 20 is located at a position facing the door body 3 that closes the opening 2 of the housing 1 so that the opening 2 can be opened and closed. Is done.
  • the attachment opening 21 of the attachment portion 20 faces the opening 2 of the housing 1, and maintenance of the heating device 19 attached to the attachment opening 21 can be performed.
  • the heat shield plate 24 is made of stainless steel in order to have corrosion resistance.
  • other metal materials may be used, and the conduction of heat from the heating device 19 to the water tank 5 can be suppressed, and flame retardancy is achieved.
  • a material other than metal for example, ceramic may be used.
  • the heating plate 25 is disposed between the bottom surface of the washing tub 7 and the heating device 19.
  • the A through hole 25 a is formed in the heating plate 25 on the center side of the water tank 5.
  • the through hole 25 a is formed at a position shifted from the upper position of the heating device 19, and the heating device 19 is configured to be covered with the heating plate 25. Since the heating device 19 is covered with the heating plate 25 and the heating plate 25 is disposed between the bottom surface of the washing tub 7 and the heating device 19, heat generated from the heating device 19 is directly applied to the washing tub 7. Conduction can be suppressed, and thermal deterioration of the bottom of the washing tub 7 can be suppressed.
  • the heating plate 25 is fixed to the heating device 19 with a plurality of ribs 26 (see FIG. 8) standing upward from the bottom surface of the recess 17.
  • the heating plate 25 is mounted at substantially the same height as the bottom surface of the water tank 5 and the top surface of the mounting portion 20 of the heating device 19. Furthermore, the heating plate 25 is mounted so as to be gradually inclined toward the through hole 25a, and the washing liquid heated by the heating device 19 is efficiently guided to the through hole 25a by the inclination of the heating plate 25. .
  • the heating plate 25 has an inclination angle with respect to the horizontal of 3 degrees.
  • the allowable inclination at the time of installation is set to 2 degrees with respect to the horizontal, and even when the washing machine is installed at an inclination of 2 degrees, the heating plate 25 is in contact with the ground plane. Are set to tilt.
  • the heating plate 25 is formed in a substantially rectangular shape.
  • the side 25b of the heating plate 25 located on the second side surface 20b side of the attachment portion 20 is attached to the second side surface 20b of the attachment portion 20 in contact with or close to the second side surface 20b.
  • the side 25c of the heating plate 25 located on the outer peripheral side of the concave portion 17 is attached to a state in contact with or close to the outer peripheral side surface of the concave portion 17.
  • the side 25d of the heating plate 25 located on the center side of the recess 17 is attached to a state in contact with or close to the center side surface of the recess 17.
  • a side 25 e of the heating plate 25 located on the rotation direction side of the washing tub 7 is spaced from the side surface of the recess 17.
  • a side 25f of the heating plate 25 located between the central side surface of the recess 17 and the second side surface 20b of the mounting portion 20 is formed in an arc shape, and the central side surface of the concave portion 17 and the second side surface of the mounting portion 20 are formed. There is an interval between 20b.
  • a through hole 25g is formed above the temperature sensor 23. Since the washing liquid heated by the heating device 19 passes upward from the through hole 25g, the heated washing liquid does not stay around the temperature sensor 23, and the temperature sensor 23 accurately detects the temperature of the washing liquid. Can do.
  • a circulating water port 32 is formed between the heat shield plate 24 and the side wall of the recess 17 (see FIGS. 3, 8, and 9).
  • a circulation pump 27 is connected to the circulation water port 32, and one end of a circulation path 28 is connected to the circulation pump 27 (see FIG. 3).
  • the circulation path 28 is disposed outside the water tank 5, and the other end of the circulation path 28 is connected to a water injection port 29 formed in the vicinity of the inlet 10.
  • the washing liquid in the water tank 5 sucked from the circulation water port 32 flows through the circulation path 28 by the circulation pump 27 and is supplied from above to the laundry in the washing tank 7 from the water injection port 29.
  • the water injection port 29 is disposed above the discharge port 16 of the circulation channel formed by the side wall 7 a of the washing tub 7 and the circulation channel cover 15.
  • the circulation amount of the washing liquid by the circulation pump 27 is set larger than the circulation amount of the washing liquid in the circulation channel.
  • the amount of the washing liquid supplied from the water injection port 29 is large and is supplied from a high position.
  • the supplied washing liquid foams against the laundry or the washing liquid in the washing tub 7 and causes the laundry to flow. Wrapping with a large amount of foam acts on dirt and improves the cleaning performance.
  • the operation display device 30 is disposed on the upper rear portion of the upper case 4, and various operation courses are set by operating the operation display device 30, and the set operation courses are displayed.
  • a control device 33 is disposed at a position facing the opening 2 formed in the housing 1 (see FIG. 1), and the driving course selected by the operation display device 30 by the control device 33 is executed.
  • the operation course executed by the control device 33 is provided with a course for washing by heating the washing liquid and a course for washing while the washing liquid is not heated.
  • the outer lid 12 and the lid body 11 are opened, the laundry is put into the washing tub 7 from the insertion port 10, the outer lid 12 and the lid body 11 are closed, and a power switch (not shown) of the operation display device 30 is operated. Turn on the power. A driving course or the like is selected by the operation display device 30, and a start switch (not shown) is operated to start driving.
  • the water supply device (not shown) is activated to start the water supply, and the water tank 5 together with the detergent put into the detergent case (not shown).
  • the washing liquid is supplied inside.
  • the circulation pump 27 When a predetermined amount of the washing liquid is stored in the water tank 5, the circulation pump 27 is operated and the washing liquid is injected from the water injection port 29 (see FIG. 3). Since the washing liquid from the water injection port 29 is supplied from a high position, it hits the laundry in the washing tub 7 and foams. The foam penetrates deep into the laundry fibers, wraps the dirt, floats the dirt, and is washed away.
  • the amount of water supplied to the water tub 5 is set according to the amount of laundry put into the washing tub 7, and when a predetermined water level is detected by a water level sensor (not shown), the water supply is stopped and the motor 9 is driven.
  • the pulsator 8 is rotated forward and reverse alternately.
  • the laundry in the washing tub 7 is stirred together with the washing liquid by the rotation of the pulsator 8 to wash the laundry.
  • the operation of the circulation pump 27 is continued.
  • the foamed washing liquid is circulated so that the foam acts on the dirt, and the dirt can be efficiently removed.
  • the washing process is continued for a predetermined time, and when the washing process is completed, a drain valve (not shown) is opened and drained. When drainage is completed, dehydration is performed. Dehydration is performed by rotating the washing tub 7 in one direction, and in the present embodiment, by rotating the washing tub 7 in the clockwise direction (in the direction of arrow A in FIG. 11) as viewed from above.
  • the water supply device is operated to supply a predetermined amount of water to the washing tub 7, a rinsing step is performed, a dehydration step is further performed, and each washing step is completed.
  • a heating process for heating the washing liquid is performed in the washing process.
  • the operation is started, the amount of laundry loaded is detected, and water is supplied into the aquarium 5 according to the amount of laundry loaded.
  • the heating device 19 is energized together with the water supply, and the washing liquid in the water tub 5 is heated.
  • the washing liquid heated by the heating device 19 moves upward. Since the heating plate 25 positioned above the heating device 19 is disposed so as to be gradually higher toward the through hole 25a side, the heated washing liquid flows along the inclination of the heating plate 25. It is guided to the through hole 25a and moves upward from the through hole 25a to the heating plate 25.
  • the heating plate 25 has an interval between a side 25 e on the rotation direction side of the washing tub 7 and a side 25 f located between the central side surface of the recess 17 and the second side surface 20 b. Therefore, the washing liquid flows into the lower part of the heating plate 25 from the substantially opposite two sides of the heating plate 25. Since the washing liquid flows into the lower part of the heating plate 25 from the substantially opposite two sides of the heating plate 25, the washing liquid efficiently convects and the washing liquid can be efficiently heated. Since the heating device 19 also heats the heating plate 25, the washing liquid is also heated by the heating plate 25, and the heating efficiency of the washing liquid is improved.
  • the through hole 25a is formed on the inclined upper side of the heating plate 25, the heated washing liquid can be efficiently guided upward.
  • the through-hole 25a is formed at a position shifted laterally from the upper position of the heating device 19. Since the upper portion of the heating device 19 is covered by the heating plate 25, foreign matter contacts the heating device 19 by the heating plate 25. It is possible to suppress this.
  • the washing liquid is heated by the heating device 19 and is heated to a predetermined temperature suitable for washing, which is about 15 ° C. in the present embodiment.
  • the circulation pump 27 When the washing liquid reaches a certain temperature slightly lower than the predetermined temperature, the circulation pump 27 is operated to circulate the washing liquid and supply it to the laundry from the water inlet 29. Since the warmed washing liquid is circulated, the powder detergent can be dissolved efficiently, the undissolved residue of the powder detergent can be suppressed, and the washing efficiency can be improved.
  • the washing liquid supplied from the water injection port 29 is supplied to the laundry from a high position, it hits the laundry and foams, the foam penetrates into the laundry, and the dirt attached to the back of the fiber is washed away. Since the washing liquid is warmed, the enzyme of the detergent is activated and the cleaning power can be improved.
  • the pulsator 8 When the washing liquid reaches a predetermined temperature, the pulsator 8 is rotated forward and backward alternately. The laundry in the washing tub 7 is stirred together with the washing water by the rotation of the pulsator 8 to wash the laundry. Since the washing liquid is heated and stirred, the undissolved residue of the powder detergent can be suppressed. Even in this state, the operation of the circulation pump 27 is continued to improve the cleaning efficiency.
  • the washing liquid When the pulsator 8 rotates, the washing liquid is pushed to the outer peripheral side by the centrifugal force generated by the rotation of the blades 8 a formed on the lower surface of the pulsator 8, and ascends the circulation channel formed by the side wall 7 a of the washing tub 7 and the circulation channel cover 15. Then, water is sprayed from the discharge port 16 toward the laundry in the washing tub 7.
  • the washing liquid sprayed from the discharge port 16 to the laundry is heated to a predetermined temperature, the enzyme in the detergent is activated and the stains on the laundry fibers can be efficiently washed.
  • the heating process for heating the washing liquid is performed in the washing process.
  • the heating device 19, the circulation pump 27, and the pulsator 8 operate as follows according to various conditions.
  • the washing liquid heated by the heating device 19 moves upward. Accordingly, the washing liquid having a low temperature moves downward in the washing tub 7.
  • the heating device 19 and the circulation pump 27 are simultaneously operated, and the washing liquid having a low temperature at the bottom of the washing tub 7 is circulated by the circulation pump 27 and supplied into the washing tub 7 from the water inlet 29.
  • the upper and lower washing liquids in the washing tub 7 are mixed, and the temperature can be raised uniformly.
  • the temperature difference between the washing liquid contained in the clothing in the upper and lower portions in the washing tub 7 becomes large. Conversely, when the amount of clothes in the washing tub 7 is less than a predetermined amount, the temperature difference of the washing liquid contained in the clothing between the upper and lower portions in the washing tub 7 becomes relatively small.
  • the temperature of the washing liquid contained in the upper and lower clothes in the washing tub 7 is made uniform by simultaneously operating the heating device 19 and the circulation pump 27. Can be.
  • the heating device 19 is operated to uniformly raise the temperature of the washing liquid contained in the clothing without using wasted power. be able to.
  • the predetermined amount of clothing is about 1/5 of the weight of the laundry having the washing / dehydrating capacity as a result of various experiments. More specifically, an experiment was conducted using a washing machine having a washing / dehydrating capacity of 10 kg and 12 kg, and as a result, the predetermined amount was set to 2 kg.
  • the amount of the washing liquid in the washing tub 7 is larger than the predetermined amount, the temperature difference between the upper and lower washing liquids in the washing tub 7 is further increased. On the contrary, when the amount of the washing liquid in the washing tub 7 is less than a predetermined amount, the temperature difference between the upper and lower washing liquids in the washing tub 7 is relatively small.
  • the heating device 19 and the circulation pump 27 are operated simultaneously. Thereby, the washing water of the upper part and the lower part in the washing tub 7 is mixed, and it can raise temperature uniformly.
  • the temperature can be raised uniformly without using wasted power by operating only the heating device 19.
  • the predetermined amount of the washing liquid is set to about 1 ⁇ 4 of the washing liquid required when washing laundry with a washing / dehydrating capacity as a result of various experiments. More specifically, the experiment was conducted using a washing machine having a washing / dewatering capacity of 10 kg and 12 kg, and as a result, the predetermined amount was set to 30 L.
  • the height of the clothes in the washing liquid in the washing tub 7 is the height of the discharge port 16 located at the middle portion of the washing tub 7.
  • the clothes in the washing liquid in the washing tub 7 are high in the discharge port 16 located in the middle of the washing tub 7.
  • the washing liquid is sprayed from the water injection port 29 into the washing tub 7 by operating the circulation pump 27.
  • the heating device 19 and the circulation pump 27 are operated simultaneously, so that the upper and lower washing liquids in the washing tub 7 are mixed and the temperature can be raised uniformly.
  • the drain valve (not shown) is opened and drained.
  • dehydration is performed. Dehydration is performed by rotating the washing tub 7 in one direction, and in this embodiment, by rotating the washing tub 7 in the clockwise direction as viewed from above.
  • the water supply device is operated to supply a predetermined amount of water to the washing tub 7, a rinsing step is performed, a dehydration step is further performed, and each washing step is completed.
  • the washing tub 7 is rotated at a high speed in the clockwise direction when viewed from above.
  • the rotation of the washing tub 7 generates an air flow in the direction of arrow A shown in FIG. 11 in the water tub 5, and the dehydrated washing liquid flows along with the air flow.
  • the first side surface 20a of the mounting portion 20 Since the first side surface 20a of the mounting portion 20 is inclined upward toward the rotation direction of the washing tub 7, the flow accompanying the rotation of the washing tub 7 is guided along the inclination of the first side surface 20a. It is burned. Therefore, the first side surface 20a inclined toward the rotation direction of the washing tub 7 prevents the flow accompanying the rotation of the washing tub 7 from being blocked, suppresses the generation of turbulence, and suppresses the generation of vibration. can do.
  • the second side surface 20b is formed substantially vertically for mounting the heating device 19. However, the second side surface 20b is located on the downstream side of the flow associated with the rotation of the washing tub 7 as compared with the first side surface 20a, and therefore hinders the flow. And no turbulence is generated.
  • the upper part of the heating device 19 is covered with a heating plate 25, and the heating plate 25 is disposed at substantially the same height as the bottom surface of the water tank 5 and the top surface of the mounting portion 20.
  • the generation of turbulent flow can be suppressed without hindering.
  • the bottom surface of the water tank 5 is inclined toward the recess 17, and the bottom surface of the recess 17 is inclined toward the drain port 18.
  • the washing liquid in the water tank 5 flows toward the drain port 18. Since the heating device 19 is disposed at a position separated from the drain port 18, the washing liquid at a position facing the heating device 19 with respect to the rotating shaft 6 in the water tank 5 is drained without passing through the heating device 19. It flows out of the mouth 18. Since the amount of the washing liquid that passes through the heating device 19 is reduced, it is possible to suppress the lint contained in the washing liquid from adhering to the heating device 19.
  • the washing machine When maintenance of the heating device 19 is necessary, such as when a malfunction occurs in the heating device 19, first, the washing machine is rotated to a position where the door body 3 faces and the door body 3 is removed from the housing 1. Since the heating device 19 is disposed at a position facing the opening 2 from which the door body 3 is removed, the heating device 19 can be visually recognized by removing the door body 3.
  • the heating device 19 It becomes possible to remove the heating device 19 from the water tank 5 by removing the wiring from the terminals at both ends of the heating device 19 and removing a fixing screw (not shown).
  • the heating device 19 can be pulled out of the water tank 5 and maintenance can be performed.
  • the heating device 19 is replaced with a new heating device 19
  • the new heating device 19 is inserted into the mounting opening 21 of the mounting portion 20 of the water tank 5, the fixing screw is screwed, and the heating device 19 is replaced with the water tank. 5 and the wiring is attached to the terminal of the heating device 19.
  • the door 3 is attached to the housing 1, and the washing machine is returned to the original position, thereby completing the maintenance.
  • the bottom surface of the water tank 5 is inclined so as to gradually become lower toward the drain port 18, and the bottom surface of the water tank 5 is formed so that the outer peripheral side including the bottom surface of the recess 17 is the highest.
  • reinforcing ribs 31 are formed outside, including the outer surface of the recess 17.
  • the heating device 19 is mounted substantially parallel to the bottom surface of the recess 17 and is disposed so as to be inclined so that the drain outlet 18 side is lower than the horizontal plane. Since the heating device 19 is disposed substantially parallel to the bottom surface of the recess 17, it is difficult to cause resistance of drainage flowing toward the drain port 18, and it is possible to suppress the lint contained in the drainage from being entangled with the heating device 19. it can.
  • the opening 2 is formed on the back side of the housing 1.
  • the opening 2 may be formed on the side surface of the housing 1 so that the heating device 19 faces the opening 2 on the side surface of the housing 1. It may be formed on the front surface of the housing 1 and the heating device 19 may face the opening 2 on the front surface of the housing 1.
  • the opening 2 By disposing the opening 2 on the side surface or the front surface of the housing 1, the amount of movement of the washing machine during maintenance can be reduced, and workability can be improved.
  • FIG. 13 is a principal part enlarged plan view which looked at the washing tub of the washing machine in the 2nd Embodiment of this invention from upper direction.
  • FIG. 14 is principal part sectional drawing of the washing tub of the washing machine in the 2nd Embodiment of this invention.
  • the present embodiment is the same as the first embodiment except that the heating plate 35 is different in shape from the heating plate 25 of the first embodiment, and the position of the drain port 18 is different.
  • the same parts as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  • the heating plate 35 is formed in a substantially rectangular shape.
  • the side 35b of the heating plate 35 positioned on the second side surface 20b side of the attachment portion 20 is attached in a state where it abuts or is close to the second side surface 20b of the attachment portion 20.
  • the side 35c of the heating plate 35 located on the outer peripheral side of the concave portion 17 is attached to a state in contact with or close to the outer peripheral side surface of the concave portion 17.
  • the side 35 d of the heating plate 35 positioned on the center side of the recess 17 is attached to a state in contact with or close to the center side surface of the recess 17.
  • Arc-shaped notches 35h are formed on the sides 35c and 35d of the heating plate 35 so that the washing liquid convects through the notches 35h.
  • the side 35e of the heating plate 35 on the rotation direction side of the washing tub 7 is positioned so as to be spaced from the side surface of the recess 17.
  • the heating plate 35 is mounted so as to be gradually inclined toward the side 35e, and the washing liquid heated by the heating device 19 is efficiently guided to the side 35e by the inclination of the heating plate 35.
  • the heating plate 35 has an inclination angle of 3 degrees with respect to the horizontal.
  • the allowable inclination at the time of installation is set to 2 degrees with respect to the horizontal, and even when the washing machine is installed at an inclination of 2 degrees, the heating plate 35 is in contact with the ground plane. Are set to tilt.
  • a through hole 35g is formed above the temperature sensor 23. Since the washing liquid heated by the heating device 19 passes upward through the through hole 35g, the heated washing liquid does not stay around the temperature sensor 23, and the temperature sensor 23 accurately detects the temperature of the washing liquid. Can do.
  • the heating device 19 When a course for washing by washing the washing liquid is selected as the operation course, the heating device 19 is energized together with the water supply to heat the washing liquid in the water tank 5.
  • the washing liquid heated by the heating device 19 moves upward. Since the heating plate 35 located above the heating device 19 is disposed so as to be gradually increased toward the side 35e, the heated washing liquid is applied to the side 35e along the heating plate 35. It guide
  • the washing liquid below the heating plate 35 moves above the heating plate 35, the low-temperature washing liquid flows from the periphery of the heating plate 35 to the lower side of the heating plate 35. Since the heating plate 35 is formed with notches 35h on the sides 35c and 35d, the washing plate 35 is washed with the sides 35c and 35d, which are substantially opposite sides of the heating plate 35, below the heating plate 35 through the notches 35h. Liquid flows in. Since the washing liquid flows into the lower side of the heating plate 35 from the sides 35c and 35d, which are two substantially opposite sides of the heating plate 35, the washing solution efficiently convects and the washing solution can be efficiently heated. Since the heating device 19 also heats the heating plate 35, the washing liquid is also heated by the heating plate 35, and the heating efficiency of the washing liquid is improved.
  • the heating plate 35 Since the heating plate 35 is disposed at an inclination, the washing liquid heated by the heating plate 35 can be efficiently guided upward. Since the upper portion of the heating device 19 is covered with the heating plate 35, it is possible to prevent foreign matter from coming into contact with the heating device 19 by the heating plate 35.
  • the drainage port 18 is disposed at a position away from the side 35e of the heating plate 35 when the water tank 5 is viewed from above, the drainage is led to the drainage port 18 by the heating plate 35, and lint contained in the drainage is removed. It is possible to suppress entanglement with the heating device 19.
  • the washing machine includes a housing, a water tub disposed in the housing, a laundry tub rotatably disposed in the water tub, and a drive for rotationally driving the laundry tub.
  • An apparatus and a heating device disposed in the water tank for heating the washing liquid.
  • the heating device is attached to an attachment portion formed in the water tub, and the attachment portion is formed by inclining a first side surface substantially orthogonal to the rotation direction of the washing tub during dehydration toward the rotation direction side of the washing tub.
  • a mounting opening for inserting the heating device may be formed on the second side surface substantially orthogonal to the first side surface of the mounting unit.
  • the second side surface is formed substantially vertically for mounting the heating device.
  • the second side surface is located downstream of the flow associated with the rotation of the washing tub from the first side surface, the flow is hindered. And no turbulence is generated.
  • the washing machine according to a third aspect of the present invention is the washing machine according to any one of the first and second aspects, wherein the drain is formed in the water tank and the bottom surface of the water tank is gradually lowered toward the drain and heated. You may arrange
  • the heating device is arranged substantially parallel to the bottom of the water tank, the heating device is unlikely to become a resistance to drainage flowing toward the drain port, and the lint contained in the drainage is prevented from being entangled with the heating device. be able to.
  • the washing machine according to a fourth aspect of the present invention is the washing machine according to any one of the first to third aspects of the present invention, wherein the heat generated by the heating device blocks the transmission to the bottom of the water tank between the water tank bottom surface and the heating device.
  • a heat shield may be provided.
  • a washing machine according to a fifth invention is the washing machine according to any one of the first to fourth inventions, wherein a heating plate is provided between the bottom surface of the washing tub and the heating device to cover the heating device. Also good.
  • the heating device since the upper part of the heating device is covered with a heating plate, the flow of the washing liquid flowing in the water tank is not hindered by the heating device, and the occurrence of turbulence can be suppressed.
  • a washing machine includes a housing, a water tub disposed in the housing, a washing tub rotatably disposed in the water tub, a driving device that rotationally drives the washing tub, and a water tank bottom surface.
  • the drain port and the heating means are arranged at a spaced position.
  • the washing liquid at a position away from the heating device flows out from the drain without passing through the heating device. Since the amount of the washing liquid passing through the heating device is reduced, the lint contained in the washing liquid is suppressed from adhering to the heating device.
  • a heat shield plate that shields transmission of heat generated by the heating device to the bottom surface of the water tank is disposed between the bottom surface of the water tank and the heating device. Good.
  • a heating plate that covers an upper portion of the heating device is disposed between the bottom surface of the washing tub and the heating device. May be.
  • a washing machine of a ninth invention includes a housing, a water tub disposed in the housing, a washing tub rotatably disposed in the water tub, a driving device that rotationally drives the laundry tub, and a water tub. And a heating device that heats the washing liquid.
  • the housing has an opening that can be freely opened and closed by a door body, the water tank is provided with a mounting portion for attaching a heating device, and the mounting portion is provided with a heating device from the outside of the water tank at a position facing the opening.
  • a mounting opening is formed for insertion.
  • the washing device when maintenance of the heating device is required, such as when a malfunction occurs in the heating device, the washing device is rotated to the position where the door body faces, and when the door body is removed from the housing, the heating device is Since it is arranged at a position facing the opening from which the door is removed, the heating device can be maintained by removing the door.
  • the opening may be formed on the back surface of the housing.
  • This configuration prevents the door body from being seen and the appearance from being damaged when the washing machine is installed.
  • the washing machine of the eleventh invention may have an opening formed on the side surface of the housing, particularly in the ninth invention.
  • This configuration can reduce the amount of movement of the washing machine during maintenance and can improve workability.
  • the heat generated by the heating device is transmitted to the bottom of the water tank between the water tank bottom surface of the washing machine and the heating device. You may arrange
  • a heating plate is disposed between the bottom of the washing tub and the heating device to cover the heating device. May be.
  • a heated water generating device is a water tank, a heating device disposed at the bottom of the water tank, for heating the liquid in the water tank, a temperature sensor provided in the heating device, and a heating device at a position above the heating device. And a heating plate disposed so as to cover the apparatus. The heating plate forms a through hole substantially above the temperature sensor.
  • the hot water heated by the heating device is transferred to the entire water tank via the heating plate, and thermal deterioration due to direct thermal damage to other materials can be suppressed.
  • the hot water heated by the heating device through the through-hole flows upward without being obstructed by the heating plate above the temperature sensor, stable temperature detection can be performed.
  • a washing machine includes the heated water generating device according to the fourteenth aspect.
  • the hot water heated by the heating device is transferred to the entire water tank via the heating plate, and thermal deterioration due to direct thermal damage to other materials can be suppressed.
  • the hot water heated by the heating device through the through-hole flows upward without being obstructed by the heating plate above the temperature sensor, stable temperature detection can be performed.
  • a washing machine is a housing, a water tub disposed in the housing, a washing tub rotatably disposed in the water tub, and a pulsator rotatably disposed at an inner bottom portion of the water tub. And a driving device that rotationally drives the washing tub and the pulsator, a circulation path connected to the washing tub so that water in the washing tub can be circulated, and a circulation pump that forms a flow of water in the circulation path.
  • a heating device that is disposed in the water tank and heats the washing liquid, and a control device that controls the driving device, the circulation pump, and the heating device are provided. The control device operates the circulation pump and the heating device simultaneously.
  • the low temperature washing liquid at the bottom of the washing tub is circulated by the circulation pump and supplied from the water inlet into the washing tub.
  • the upper and lower washing water in the washing tub is mixed and the temperature can be raised uniformly.
  • the washing machine according to a seventeenth aspect is the washing machine according to the sixteenth aspect, wherein when the amount of water in the washing tub is larger than a predetermined amount, the controller operates the circulation pump and the heating device at the same time. When the amount is less than the predetermined amount, only the heating device may be operated.
  • the heating device and the circulation pump are operated at the same time, so that the upper and lower washing water in the washing tub are mixed and the temperature rises uniformly. Can do. Further, when the amount of the washing liquid in the washing tub is less than a predetermined amount, the temperature of the washing water can be raised uniformly without using wasted power by operating only the heating device.
  • the control device when the amount of clothing in the washing tub is greater than a predetermined amount, the control device simultaneously turns on the circulation pump and the heating device. When the amount of clothes in the washing tub is less than a predetermined amount, only the heating device may be operated.
  • the temperature of the washing liquid contained in the upper and lower clothes in the washing tub is made uniform by simultaneously operating the heating device and the circulation pump. be able to.
  • the amount of clothing in the washing tub is less than a predetermined amount, the temperature of the washing water contained in the clothing can be raised uniformly without using wasted power by operating only the heating device. it can.
  • a washing machine of a nineteenth invention has a discharge port located at an intermediate portion in the washing tub, and in any one of the sixteenth to eighteenth inventions, the control device controls the water in the washing tub.
  • the control device controls the water in the washing tub.
  • the washing machine of the twentieth invention is the washing machine according to any one of the sixteenth to nineteenth inventions, wherein when the amount of clothes in the washing tub is less than a predetermined amount, the control device energizes the heating device.
  • the circulation pump is operated simultaneously with the energization of the heating device.
  • a washing machine is a housing, a water tub disposed in the housing, a washing tub rotatably disposed in the water tub, a driving means for rotationally driving the laundry tub, and a water tub It is provided with a heating device for heating the washing liquid in the water tub and a circulation path for circulating the washing liquid in the water tub from above into the washing tub.
  • a circulation port to the circulation path is formed at the bottom of the water tank.
  • the washing liquid at the bottom of the water tank heated by the heating device can be circulated to the upper part of the water tank, so that the entire washing liquid in the water tank can be efficiently heated, reducing unevenness in washing, Easy to remove dirt.
  • the circulating water port may be formed in the vicinity of the heating device.
  • the washing liquid heated by the heating device can be efficiently guided to the circulation path.
  • the circulating water port may be formed to protrude upward from the bottom of the water tank toward the heating device.
  • the washing liquid heated by the heating device moves upward, the washing liquid having a relatively low temperature flows from the surroundings.
  • the circulating water port is heated upward from the bottom of the water tank. Since it is formed so as to protrude toward the apparatus, the washing liquid warmed by the heating apparatus can be efficiently guided to the circulation path.
  • the washing machine according to the present invention can suppress the occurrence of vibration during the dehydration operation, it can be applied to uses such as a washing dryer and a commercial washing machine.

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)
  • Centrifugal Separators (AREA)
PCT/JP2018/048460 2018-02-27 2018-12-28 洗濯機および加熱水生成装置 WO2019167422A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SG11202007269YA SG11202007269YA (en) 2018-02-27 2018-12-28 Washing machine and heated water generation device
CN201880089859.0A CN111742094B (zh) 2018-02-27 2018-12-28 洗衣机和加热水生成装置
PH12020551335A PH12020551335A1 (en) 2018-02-27 2020-08-26 Washing machine and heated water generation device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018032646A JP6937467B2 (ja) 2018-02-27 2018-02-27 洗濯機
JP2018-032646 2018-02-27

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WO2019167422A1 true WO2019167422A1 (ja) 2019-09-06

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CN (1) CN111742094B (zh)
PH (1) PH12020551335A1 (zh)
SG (2) SG11202007269YA (zh)
TW (4) TWI830391B (zh)
WO (1) WO2019167422A1 (zh)

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KR20230007413A (ko) * 2020-04-23 2023-01-12 엘지전자 주식회사 의류처리장치

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TWI830390B (zh) 2024-01-21
TW202300751A (zh) 2023-01-01
TWI753226B (zh) 2022-01-21
TW202206669A (zh) 2022-02-16
TWI786886B (zh) 2022-12-11
TWI830391B (zh) 2024-01-21
TW202300752A (zh) 2023-01-01
CN111742094B (zh) 2022-11-08
TW201937036A (zh) 2019-09-16
SG11202007269YA (en) 2020-09-29
JP6937467B2 (ja) 2021-09-22
PH12020551335A1 (en) 2021-09-06
JP2019146717A (ja) 2019-09-05
SG10202110567QA (en) 2021-11-29
CN111742094A (zh) 2020-10-02

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