WO2018079074A1 - Machine à laver - Google Patents

Machine à laver Download PDF

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Publication number
WO2018079074A1
WO2018079074A1 PCT/JP2017/031696 JP2017031696W WO2018079074A1 WO 2018079074 A1 WO2018079074 A1 WO 2018079074A1 JP 2017031696 W JP2017031696 W JP 2017031696W WO 2018079074 A1 WO2018079074 A1 WO 2018079074A1
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WO
WIPO (PCT)
Prior art keywords
washing
washing machine
liquid
balancer device
annular
Prior art date
Application number
PCT/JP2017/031696
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English (en)
Japanese (ja)
Inventor
徹 岩佐
士郎 二宮
直人 山岡
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.)
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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 SG11201900063XA priority Critical patent/SG11201900063XA/en
Priority to CN201780045283.3A priority patent/CN109477276B/zh
Publication of WO2018079074A1 publication Critical patent/WO2018079074A1/fr
Priority to PH12019500063A priority patent/PH12019500063A1/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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis

Definitions

  • the present invention relates to a washing machine that performs a series of step operations such as washing, rinsing, and dehydration.
  • the balancer device of a washing machine described in Patent Document 1 is formed of an annular body in which an upper annular case and a lower annular case are welded and sealed, and a predetermined amount of liquid is enclosed in the annular body.
  • the liquid in the annular body moves to the side opposite to the bias of the clothing when an imbalance occurs due to the bias of the clothing or the like in the washing and dewatering tank. Thereby, the vibration of the washing and dewatering tank is suppressed.
  • the liquid in the annular body moves with a delay from the increase in the rotation speed. That is, the liquid in the annular body is delayed by 180 ° during steady rotation. Therefore, a great vibration suppressing effect can be obtained particularly during steady rotation.
  • the height dimension of the annular body and the width dimension in the radial direction of the annular body are set large from the above principle, a greater vibration suppressing effect can be obtained.
  • the balancer device is provided in the upper part of the washing and dewatering tank. Therefore, the outer diameter of the balancer device is limited by the size of the washing and dewatering tub, and the inner diameter is limited by the size considering taking in and out of the laundry. Furthermore, the height of the balancer device is limited by the height of the product and the volume of the washing and dewatering tank. Therefore, the conventional washing machine includes a balancer device partitioned into multiple annular chambers as described below with reference to FIG.
  • FIG. 12 is a perspective view of a main part of a conventional balancer device of a washing machine as seen through.
  • the conventional balancer device 40 is formed by an annular body 43 including an upper annular case 41 and a lower annular case 42.
  • the upper annular case 41 includes annular upper partition walls 47 and 48 provided concentrically.
  • the lower annular case 42 includes lower partition walls 50 and 51 that come into contact with the lower ends of the upper partition walls 47 and 48.
  • the upper partition walls 47 and 48 and the lower partition walls 50 and 51 partition the inside of the annular body 43 into three annular chambers 44, 45 and 46 in the radial direction.
  • a predetermined liquid (not shown) is sealed in the annular chambers 44, 45 and 46.
  • the annular chambers 44, 45, 46 have a plurality of upper partition walls 49 a, 49 b, 49 c formed radially from the outer peripheral side wall on the outer peripheral side upper side wall.
  • Air circulation ports 53a, 53b, and 53c through which air flows are formed between the upper partition walls 49a, 49b, and 49c and the inner peripheral side walls of the annular chambers 44, 45, and 46, respectively.
  • Each annular chamber 44, 45, 46 has lower partition walls 52a, 52b, 52c on the lower side wall on the outer peripheral side. Between the lower partition walls 52a, 52b, 52c and the inner peripheral side walls of the respective annular chambers 44, 45, 46, a liquid circulation port 54a through which the liquid sealed in the annular chambers 44, 45, 46 circulates. , 54b, 54c are formed.
  • the balancer device 40 having the above configuration is mounted on the upper part of a washing and dewatering tub (not shown) as described above.
  • the liquid in the balancer device 40 is unbalanced in the liquid circulation ports 54a, 54b, 54c. Move to the position you want.
  • the air in the annular chambers 44, 45, 46 moves through the air circulation ports 53 a, 53 b, 53 c of the upper annular case 41.
  • the liquid moves smoothly in the liquid circulation ports 54a, 54b, 54c.
  • the vibration of the washing and dewatering tank is suppressed.
  • the washing and dewatering tub vibrates greatly, particularly in the vicinity of the secondary resonance point where the rotation speed of the washing and dewatering tub is 200 to 300 r / min. At this time, the liquid in the balancer device also moves greatly. Therefore, the vibration suppression effect in the balancer device is reduced.
  • the present invention provides a washing machine that exhibits an excellent vibration suppressing effect, particularly in the vicinity of the secondary resonance point where the rotational speed of the washing and dewatering tank is 200 to 300 r / min.
  • the washing machine of the present invention includes a washing machine main body, a water tub supported in an anti-vibration manner inside the washing machine main body, a washing and dehydrating tub that is rotatably included in the tub, and a motor that rotationally drives the washing and dehydrating tub.
  • the balancer device includes an annular chamber in which a liquid is enclosed, and the annular chamber includes a plurality of partition walls therein, and the partition walls are at least from the outer peripheral side of the annular chamber to the inner peripheral side of the annular chamber. And an inclined portion inclined downward.
  • the inclination angle from the horizontal surface of the inclined portion is the inclination angle from the horizontal surface when the liquid is inclined toward the outer peripheral side wall surface of the annular chamber by centrifugal force at the rotational speed near the secondary resonance point of the washing and dewatering tub. So as to be substantially the same.
  • FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment.
  • FIG. 2 is a perspective view of a main part of the balancer device of the washing machine as seen through.
  • FIG. 3 is a cross-sectional view at the partition wall position of the balancer device of the washing machine.
  • FIG. 4 is a cross-sectional view of the balancer device at the partition wall position when the washing machine is stopped.
  • FIG. 5 is a cross-sectional view of the balancer device at the partition wall position during no-load steady rotation of the washing machine.
  • FIG. 6 is a cross-sectional view at the partition wall position of the balancer device during secondary resonance of the washing machine.
  • FIG. 7 is a characteristic diagram showing the vibration system amplitude when the washing machine is dehydrated.
  • FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment.
  • FIG. 2 is a perspective view of a main part of the balancer device of the washing machine as seen through.
  • FIG. 3 is a
  • FIG. 8 is a cross-sectional view at the partition wall position of the balancer device of the conventional washing machine of Comparative Example 1.
  • FIG. 9 is a characteristic diagram showing the vibration system amplitude during dehydration of the conventional washing machine of Comparative Example 1.
  • FIG. 10 is a cross-sectional view at the partition wall position of the balancer device of the conventional washing machine of Comparative Example 2.
  • FIG. 11 is a characteristic diagram showing the vibration system amplitude during dehydration of the conventional washing machine of Comparative Example 2.
  • FIG. 12 is a perspective view illustrating a main part of a balancer device of a conventional washing machine.
  • FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment.
  • the washing machine of the embodiment includes a washing machine body 1, an upper frame 12, a water tank unit 19 included in the washing machine body 1, and the like.
  • the water tank unit 19 includes a water tank 3, a washing / dehydrating tank 4, a balancer device 7, a motor 8, a transmission mechanism 9, and the like, and constitutes a vibration system of the washing machine.
  • the water tub 3 is supported in an anti-vibration manner in a suspended state by the suspension 2 inside the washing machine body 1.
  • the water tank 3 includes a drain valve 17 that can be opened and closed at the inner bottom.
  • the drain valve 17 is opened at the time of draining, and drains the water in the water tank 3 to the outside through the drain hose 18.
  • the water tank 3 has a bottomed cylindrical washing and dewatering tank 4 rotatably disposed therein.
  • the washing and dewatering tub 4 has a large number of dewatering holes (not shown) on the side wall.
  • the washing and dewatering tub 4 is provided with a balancer device 7 for vibration reduction at the upper part of the inner periphery.
  • a pulsator 11 for stirring clothes is rotatably disposed at the inner bottom. The pulsator 11 stirs the clothes in the washing and dewatering tub 4 by rotation.
  • the water tank 3 is provided with a transmission mechanism 9 on the outer bottom.
  • the transmission mechanism 9 includes therein a reduction gear (not shown) during washing, a switching clutch (not shown) for the washing / dehydrating shaft 5, and a brake (not shown) for stopping the washing / dehydrating tub 4 during dehydration. Etc.).
  • the motor 8 is attached to the outer bottom of the water tank 3 and transmits driving force to the washing / dehydrating shaft 5. Thereby, the motor 8 rotates the pulsator 11 and rotates the pulsator 11 and the washing / dehydrating tub 4 simultaneously.
  • a control device (not shown) is disposed in the washing machine main body 1.
  • the control device controls the motor 8 and the like, and sequentially controls a series of step operations of washing, rinsing and dewatering.
  • the upper frame 12 is disposed on the upper part of the washing machine body 1.
  • the upper frame 12 has an operation display unit 16 at the front.
  • the operation display unit 16 displays various input settings by the user and set contents.
  • the upper frame 12 has a laundry input / exit 13 at a substantially central portion (including the central portion).
  • the laundry loading / unloading port 13 communicates the washing / dehydrating tub 4 with the outside.
  • the laundry loading / unloading port 13 is covered with the lid 6 so as to be freely opened and closed.
  • the lid 6 includes a handle portion (not shown) and a hinge mechanism (not shown).
  • the handle is operated by the user to open and close the lid 6.
  • the hinge mechanism enables the lid 6 to be bent at the intermediate portion.
  • the balancer device 7 is disposed in the upper part of the inner periphery of the washing and dewatering tub 4. As described above, the balancer device 7 corrects the unbalanced state due to the uneven distribution of the laundry during washing.
  • FIG. 2 is a perspective view of the essential part of the balancer device 7 of the washing machine according to the embodiment.
  • the balancer device 7 includes an annular body 30 in which an upper annular case 31 and a lower annular case 32 are integrated.
  • the integrated annular body 30 includes an annular partition wall 35 inside, and an annular inner peripheral wall 20 and outer peripheral wall 23 on the outside.
  • the annular partition wall 35 partitions the inside of the annular body 30 into two layers of annular chambers 33 and 34 in the radial direction.
  • the annular chambers 33 and 34 have partition walls 36 and 37, respectively.
  • the partition walls 36 and 37 are formed at 24 locations, for example, at 15 ° intervals radially from the annular center of the annular body 30 in the radial direction.
  • the annular chambers 33 and 34 are filled with a liquid 38 inside.
  • the liquid 38 is preferably an aqueous solution of sodium chloride or calcium chloride in consideration of freezing prevention and correction effect. Thereby, it is inexpensive, can lower the freezing point, can be used in cold regions, and can increase the specific gravity (about 1.3). As a result, the unbalance correction power can be improved.
  • the amount of the liquid 38 enclosed be in the range of 30 to 70% of the internal volume of the annular chambers 33 and 34. Thereby, the unbalance correction force can be maintained more appropriately.
  • the filled amount of the liquid 38 is set to about 55% of the internal volume of the annular chambers 33 and 34.
  • the liquid 38 moves in the annular chambers 33 and 34 in the direction of eliminating the unbalanced state due to the laundry in the rotating state of the washing and dewatering tank 4.
  • space portions 21 and 22 are formed which communicate the annular chambers 33 and 34 in an annular shape.
  • FIG. 3 is a cross-sectional view at the partition wall position of the balancer device of the washing machine.
  • FIG. 4 is a cross-sectional view of the balancer device at the partition wall position when the washing machine is stopped.
  • FIG. 5 is a cross-sectional view of the balancer device at the partition wall position during no-load steady rotation of the washing machine.
  • the partition walls 36 and 37 are composed of transverse portions 36 a and 37 a, vertical portions 36 b and 37 b, inclined portions 36 c and 37 c, and transverse portions 36 d and 37 d.
  • the crossing portions 36a and 37a are formed above the annular chambers 33 and 34 so as to cross from the inner wall on the outer peripheral side to the inner wall on the inner peripheral side in the annular chambers 33 and 34.
  • the crossing portions 36a and 37a improve the mechanical strength in the radial direction against the centrifugal force acting on the annular chambers 33 and 34. Therefore, it is possible to prevent the balancer device 7 from being deformed when the washing and dewatering tub 4 is dewatered. Thereby, the balancer apparatus 7 can be operated stably.
  • the vertical portions 36b and 37b are connected to the transverse portions 36a and 37a and are formed to extend vertically along the inner wall of the outer peripheral wall 23 of the annular chambers 33 and 34 by a predetermined height.
  • the inclined portions 36c and 37c are inclined from the lower ends 36b1 and 37b1 of the vertical portions 36b and 37b toward the positions of the predetermined heights H3 and H4 from the inner bottom portions 33a and 34a of the annular chambers 33 and 34 below the inner diameter side. It is formed to extend.
  • the inclination angle of the inclined portions 36c and 37c from the horizontal plane is substantially the same as the inclination angle of the liquid 38 that is inclined by the centrifugal force during rotation of 200 to 300 r / min, which is the secondary resonance point of the water tank unit 19 ( Including the same).
  • the inclination angles of the inclined portions 36c and 37c of the partition walls 36 and 37 are set to, for example, approximately 80 degrees (including 80 degrees) with respect to the horizontal plane.
  • the crossing part 36d constituting the partition wall 36 is provided so as to cross from the inner bottom part 33a of the annular chamber 33 to a predetermined height H3 from the inner wall of the outer peripheral wall 23 toward the partition wall 35.
  • the crossing part 37d constituting the partition wall 37 is provided from the inner bottom part 34a of the annular chamber 34 to a predetermined height H4 so as to cross from the partition wall 35 toward the inner wall of the inner peripheral wall 20.
  • the strength of the annular chambers 33 and 34 can be improved by the crossing portions 36d and 37d, similarly to the crossing portions 36a and 37a.
  • the width dimension in the radial direction of the vertical portion 37b of the partition wall 37 is defined as W1.
  • the width dimension in the radial direction of the liquid 38 enclosed in the annular chamber 34 in the steady state of the washing / dehydrating tub 4 that is dehydrated and rotated without load is defined as W2.
  • the width dimension of the liquid 38 when the liquid 38 sticks to the inner surface of the partition wall 35 in a state where the liquid 38 is in a substantially vertical shape (including a vertical shape) by centrifugal force is defined as W2.
  • the vertical portion 37 b acts as a resistance against the liquid 38 that rotates in the annular chamber 34.
  • the vertical portion 37b works to prevent the movement of the liquid 38 in a state where there is no imbalance, and to keep the position of the liquid 38 constant by keeping it between the partition walls 37 provided radially. Thereby, the instability of the water tank unit 19 generated by the moving liquid 38 can be prevented.
  • the dimensional relationship of the vertical portion 36b of the partition wall 36 in the annular chamber 33 is also the same, and thus will not be described in particular.
  • the inner dimension height H2 of the annular chambers 33 and 34 of the balancer device 7 is set to 70 mm.
  • the inner diameter of the balancer device 7 (the distance from the rotation center of the balancer device 7 to the outer surface of the inner peripheral wall 20 of the annular body 30) is ⁇ 404 mm, and the outer diameter (the outer surface of the outer peripheral wall 23 of the annular member 30 from the rotation center of the balancer device 7). Is set to ⁇ 470 mm. That is, the radial width of the annular body 30 (the distance from the outer surface of the inner peripheral wall 20 to the outer surface of the outer peripheral wall 23) is set to 33 mm.
  • the annular chambers 33 and 34 each contain the same amount of liquid 38 therein. That is, the water level H1 from the height H3 of the crossing part 36d of the partition wall 36 of the annular chamber 33 to the liquid level of the liquid 38 is set to 20 mm. Similarly, the water level H1 from the height H4 of the transverse portion 37d of the partition wall 37 of the annular chamber 34 to the liquid level of the liquid 38 is set to 20 mm. This prevents the liquid 38 from flowing through the spaces 21 and 22 in an unbalanced direction during the secondary resonance of the washing and dewatering tub 4. As a result, generation of large vibrations in the water tank unit 19 can be suppressed.
  • FIG. 6 is a cross-sectional view of the balancer device at the partition wall position during secondary resonance of the washing machine.
  • FIG. 7 is a characteristic diagram showing the vibration system amplitude when the washing machine is dehydrated.
  • the rotation speed of the washing and dewatering tank 4 increases from the stopped state.
  • the vertical and horizontal amplitudes of the aquarium unit 19 that is a vibration system increase.
  • the partition wall 36 of the annular chamber 33 is approximately 80 ° (including 80 °) downward from the inner wall of the outer peripheral wall 23 of the annular body 30 toward the partition wall 35.
  • the partition wall 37 of the annular chamber 34 is inclined downward by approximately 80 ° (including 80 °) from the partition wall 35 of the annular body 30 toward the inner surface of the inner peripheral wall 20.
  • the space parts 21 and 22 are also formed in the lower part of the partition walls 36 and 37 (corresponding to the positions of the inclined parts 36c and 37c). Therefore, the liquid 38 flows through the space portions 21 and 22 when the rotation of the washing / dehydrating tub 4 from the stop state is started. As a result, the liquid 38 efficiently moves to the unbalanced opposing position.
  • the rotation speed of the washing / dehydrating tub 4 is increased, the rotation speed is 200 to 300 r / min, which is the secondary resonance point of the water tub unit 19.
  • the liquid 38 in the balancer device 7 moves with a delay of approximately 90 ° (including 90 °) with respect to the unbalance.
  • the water tank unit 19 swings greatly. Therefore, the liquid 38 flows through the annular chambers 33 and 34 in an unbalanced direction. Thereby, the vibration suppression effect of the balancer apparatus 7 is reduced.
  • the balancer device 7 of the present embodiment increases the inclination angles of the inclined portions 36 c and 37 c of the partition walls 36 and 37 toward the outer peripheral side of the liquid 38 due to the centrifugal force near the secondary resonance point. It is formed so as to be approximately the same as the inclination of. With the above configuration, the liquid 38 is prevented from flowing in the spaces 21 and 22 in an unbalanced direction during the secondary resonance of the washing and dewatering tub 4. As a result, generation of large vibrations in the water tank unit 19 can be suppressed.
  • the liquid 38 is in a substantially vertical state (including a vertical state) on the inner surface side of the outer peripheral wall 23 of the annular chamber 33 and the inner surface side of the partition wall 35 of the annular chamber 34 as shown in FIG. Stick.
  • the width W1 of the vertical portions 36b and 37b of the partition walls 36 and 37 is about half of the width W2 of the liquid 38 stuck in the annular chambers 33 and 34.
  • the vertical portions 36b and 37b have the above width dimensions, the liquid 38 can be moved in an unbalanced state in a steady state. At the same time, the vertical portions 36b and 37b limit the movement of the liquid 38 in the absence of a large imbalance.
  • the balancer device 7 of the washing machine of the present embodiment can improve the vibration suppressing effect regardless of the rotational speed of the washing and dewatering tub 4 as shown in FIG.
  • FIGS. 8 to 11 are diagrams for explaining the workability of putting in and taking out the laundry and the vibration reducing effect in the present embodiment in comparison with a conventional washing machine.
  • FIG. 8 is a cross-sectional view at the partition wall position of the balancer device of the conventional washing machine shown as Comparative Example 1.
  • FIG. 9 is a characteristic diagram showing the vibration system amplitude during dehydration of the comparative example.
  • the balancer device 107 of Comparative Example 1 has an inner diameter of 404 mm, an annular body 135 having a radial width of 33 mm, an outer diameter of 470 mm, and annular chambers 133 and 134, as in the balancer device 7 of the embodiment.
  • the inner height H2 was set to 70 mm.
  • the distance H1 from the liquid level 38a of the liquid 38 to the upper lower ends 136a and 137a of the partition walls 136 and 137 was set to 5 mm.
  • the height of the inner peripheral side of the partition walls 136 and 137 of Comparative Example 1 is formed higher than the inner peripheral side of the partition walls 36 and 37 of the balancer device 7 of the present embodiment shown in FIG. Therefore, the flow path of the liquid 38 flowing in the circumferential direction through the annular chambers 133 and 134 is narrowed.
  • FIG. 10 is a cross-sectional view at the partition wall position of the balancer device of the conventional washing machine shown as Comparative Example 2.
  • FIG. 11 is a characteristic diagram showing the vibration system amplitude during dehydration of the comparative example.
  • the balancer device 207 of Comparative Example 2 was set to have an outer diameter of 470 mm and the inner dimension height H2 of the annular chambers 233 and 234 of 70 mm, as with the balancer device 7 of the first embodiment.
  • the inner diameter was set to ⁇ 381 mm
  • the radial width of the annular body 235 was set to 44.5 mm.
  • the distance H1 from the liquid level 38a of the liquid 38 to the upper lower ends 236a and 237a on the inner peripheral side of the partition walls 236 and 237 was set to 5 mm.
  • the distance H1 from the liquid level 38a to the upper lower ends 236a and 237a of the partition walls 236 and 237 is the same as that of Comparative Example 1.
  • the inner diameter ( ⁇ 381 mm) of the balancer device 207 is smaller than the inner diameter ( ⁇ 404 mm) of Comparative Example 1 shown in FIG. 7, and the radial width of the annular body 235 is widened to 44.5 mm. Therefore, the flow path of the liquid 38 in the comparative example 2 is wider than the flow path of the liquid 38 in the comparative example 1. Thereby, the liquid 38 moves smoothly through a wide flow path after dehydration is started.
  • the balancer device 207 of Comparative Example 2 has an inner diameter as small as ⁇ 381 mm. Therefore, workability with respect to the loading / unloading of the laundry into / from the washing / dehydrating tub 4 determined by the inner diameter is lowered. In particular, it becomes difficult to put in and out large laundry such as blankets and sheets.
  • the balancer device 7 of the present embodiment is formed so that the inner diameter of the washing and dewatering tub 4 is larger than that of the balancer device of Comparative Example 2. Thereby, workability of putting in and out can be improved also with respect to a large laundry.
  • the balancer device 7 of the washing machine of the present embodiment can simultaneously realize both the workability of putting in and taking out the laundry and the vibration suppressing effect.
  • the embodiment has been described as an example of the technique disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, and the like.
  • the annular chambers 33 and 34 have been described by taking as an example a configuration in which the partition walls 36 and 37 are formed radially at intervals of 15 °, but the present invention is not limited thereto.
  • the partition walls 36 and 37 may be formed at 36 locations at intervals of 10 ° or 12 locations at intervals of 30 °.
  • the width W1 of the vertical portions 36b and 37b of the partition walls 36 and 37 is set to be constant and the washing and dewatering tub 4 is rotated constantly, the outer circumferential side of the annular chambers 33 and 34 is caused by centrifugal force.
  • the structure formed by substantially half (including half) the width W2 of the liquid 38 sticking to the wall surface in a substantially vertical shape (including the vertical shape) is described as an example.
  • the inclined portions 36c and 37c of the partition walls 36 and 37 are provided at predetermined heights H3 and H4 from the lower ends 36b1 and 37b1 of the vertical portions 36b and 37b and from the inner bottom portions 33a and 34a of the annular chambers 33 and 34, respectively.
  • the present invention is not limited to this. That is, if the inclinations of the inclined parts 36c and 37c are approximately the same as the inclination of the liquid 38 at the time of the secondary resonance of the washing / dehydrating tank 4, the inclined parts 36c and 37c are the inner bottom parts 33a and 34a of the annular chambers 33 and 34, respectively.
  • the height may not be from 34a to the predetermined heights H3 and H4.
  • the inner bottom portions 33a and 34a may be provided.
  • the partition walls 36 and 37 have been described as examples including the crossing portions 36a and 37a, the vertical portions 36b and 37b, the inclined portions 36c and 37c, and the crossing portions 36d and 37d. It is not limited to this. As long as the partition walls 36 and 37 are provided with the inclined portions 36c and 37c, in particular, a configuration in which the transverse portions 36a and 37a, the vertical portions 36b and 37b, the transverse portions 36d and 37d, and the like are not provided may be employed. In this case, it is preferable that the annular body 30 of the balancer device 7 is configured with dimensions, materials, and the like that have sufficient mechanical strength against the centrifugal force generated by the rotation of the washing and dewatering tub 4.
  • the balancer device 7 has been described by taking as an example the configuration in which the two annular chambers 33 and 34 are formed in the radial direction, but the present invention is not limited thereto.
  • the annular chamber may be composed of one layer or three or more layers.
  • the vibration suppression effect of the balancer device is reduced as compared with the two-layer configuration, but a sufficient vibration suppression effect can be obtained in a washing machine with a small space.
  • the vibration suppression effect of the balancer device can be further improved.
  • the washing machine of the present invention includes a washing machine main body, a water tank that is supported in an anti-vibration manner inside the washing machine main body, a washing and dewatering tank that is rotatably contained in the water tank, and a washing and demounting machine.
  • a motor for rotating the water tub, a control unit for controlling the motor, sequentially controlling a series of steps of washing, rinsing and dewatering, and a sealed annular balancer device disposed at the upper peripheral edge of the washing and dewatering tub Prepare.
  • the balancer device includes an annular chamber in which a liquid is enclosed, and the annular chamber includes a plurality of partition walls therein, and the partition walls are at least from the outer peripheral side of the annular chamber to the inner peripheral side of the annular chamber. And an inclined portion inclined downward.
  • the inclination angle of the inclined portion from the horizontal plane is determined from the horizontal plane when the liquid is inclined toward the outer peripheral side of the annular chamber by centrifugal force at the rotational speed near the secondary resonance point of the rotational speed of the washing and dewatering tub. It is provided so as to be substantially the same as the inclination angle. Thereby, an excellent vibration suppressing effect can be exhibited particularly in the vicinity of the secondary resonance point where the rotation speed of the washing and dewatering tub is, for example, 200 to 300 r / min.
  • the partition wall may further include a vertical portion that extends in a substantially vertical shape and is connected to the inclined portion.
  • the washing machine of the present invention has the radial width of the vertical portion when the liquid sticks to the outer peripheral side of the annular chamber by centrifugal force during no-load steady rotation of the washing and dewatering tub. , It may be provided so as to be substantially 1 ⁇ 2. Thereby, the liquid can be moved in the unbalanced state during the steady rotation of the washing and dewatering tub. Furthermore, the movement of the liquid in a state where there is no large imbalance can be restricted.
  • the washing machine of the present invention may further include a crossing portion that is connected to the partition wall and connected to the vertical portion and extends from the outer peripheral side to the inner peripheral side of the annular chamber.
  • the washing machine of the present invention may be provided with a balancer device and a multi-layered annular chamber in the radial direction. Thereby, a liquid can be enclosed in a multilayered annular chamber. Therefore, the vibration suppression effect of the washing machine can be further improved.
  • the internal partition wall of the balancer device is set to have an inclination that is approximately the same as the inclination of the internal liquid level during secondary resonance. Therefore, it is useful for the use of a washing machine such as a drum type equipped with a balancer device for which workability in and out of the laundry and vibration suppression are desired.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

La présente invention concerne un dispositif d'équilibrage (7) qui forme deux couches dans la direction radiale et qui comprend des chambres annulaires (33, 34) ayant une pluralité de parois de séparation (36, 37) réparties radialement à l'intérieur de celles-ci. Les parois de séparation (36, 37) sont constituées : de parties transversales (36a, 37a) qui s'étendent à travers des parties supérieures des chambres annulaires (33, 34); des parties sensiblement perpendiculaires (36b, 37b) qui sont reliées aux parties transversales (36a, 37a) et s'étendent verticalement à une hauteur prédéterminée; des parties inclinées (36c, 37c) qui s'étendent angulairement depuis les extrémités inférieures des parties sensiblement perpendiculaires (36b, 37b) à des positions à une hauteur prédéterminée à partir de parties inférieures internes sur le côté de circonférence interne des chambres annulaires (33, 34). Ceci permet au dispositif d'équilibrage (7) d'avoir un diamètre interne suffisant, assure une facilité d'enlèvement du linge et permet de supprimer les vibrations.
PCT/JP2017/031696 2016-10-31 2017-09-04 Machine à laver WO2018079074A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SG11201900063XA SG11201900063XA (en) 2016-10-31 2017-09-04 Washing machine
CN201780045283.3A CN109477276B (zh) 2016-10-31 2017-09-04 洗衣机
PH12019500063A PH12019500063A1 (en) 2016-10-31 2019-01-09 Washing machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016212417A JP6731579B2 (ja) 2016-10-31 2016-10-31 洗濯機
JP2016-212417 2016-10-31

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280887A (ja) * 1985-06-06 1986-12-11 松下電器産業株式会社 自動洗濯方法
JP2011030953A (ja) * 2009-08-05 2011-02-17 Sharp Corp 液体バランサとそれを備えた洗濯機

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101629672B1 (ko) * 2009-06-29 2016-06-14 삼성전자 주식회사 세탁기 및 세탁기의 제조방법
JP5469102B2 (ja) * 2011-01-07 2014-04-09 シャープ株式会社 洗濯機
JP6431684B2 (ja) * 2014-04-18 2018-11-28 日立アプライアンス株式会社 電気洗濯機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280887A (ja) * 1985-06-06 1986-12-11 松下電器産業株式会社 自動洗濯方法
JP2011030953A (ja) * 2009-08-05 2011-02-17 Sharp Corp 液体バランサとそれを備えた洗濯機

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TW201817936A (zh) 2018-05-16
JP2018068679A (ja) 2018-05-10
TWI710684B (zh) 2020-11-21
MY179849A (en) 2020-11-18
PH12019500063A1 (en) 2019-10-28
SG11201900063XA (en) 2019-02-27
CN109477276A (zh) 2019-03-15
CN109477276B (zh) 2019-08-30

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