WO2022242567A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2022242567A1
WO2022242567A1 PCT/CN2022/092732 CN2022092732W WO2022242567A1 WO 2022242567 A1 WO2022242567 A1 WO 2022242567A1 CN 2022092732 W CN2022092732 W CN 2022092732W WO 2022242567 A1 WO2022242567 A1 WO 2022242567A1
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WO
WIPO (PCT)
Prior art keywords
water
tub
washing
port
overflow
Prior art date
Application number
PCT/CN2022/092732
Other languages
English (en)
French (fr)
Inventor
樋口秀一
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
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 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2022242567A1 publication Critical patent/WO2022242567A1/zh

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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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06—Arrangements for preventing or destroying scum
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to a washing machine.
  • a washing machine described in Patent Document 1 below includes a water tub, a washing and dehydrating tub arranged in the water tub, and a motor for rotating the washing and dehydrating tub.
  • a washing machine when the washing and spinning tub is rotated after water is supplied to the washing and spinning tub, a water flow is generated in the tub and bubbles are generated between the washing and spinning tub and the tub to clean the tub.
  • the top of the general washing tub is provided with an overflow outlet for discharging water exceeding the specified water level in the washing tub, but the above-mentioned dirt sometimes exists in the washing tub at a position higher than the overflow outlet due to water splashing and the like.
  • the tub cleaning of Patent Document 1 it is difficult to remove dirt on the upper side of the overflow in the tub.
  • the tub cleaning of Patent Document 1 there is a fear that mold may proliferate due to the foam remaining between the washing and dehydrating tub and the water tub, and the washing and dehydrating tub may not be able to rotate smoothly due to the foam acting as resistance. As a result, the motor is constrained and fails.
  • Patent Document 1 Japanese Patent Laid-Open No. 2009-39318
  • the present invention has been made against such a background, and an object of the present invention is to provide a washing machine capable of efficiently cleaning a washing tub.
  • the present invention relates to a washing machine, comprising: a driving part generating torque; a washing tub having an outer tub and an inner tub; an overflow port and an opening arranged at a position higher than the overflow port; the inner tub is arranged in the outer tub and rotates by receiving the torque of the driving part;
  • the drainage path is connected with the drain outlet to discharge the laundry the water in the washing tub;
  • the overflow channel is connected with the overflow port, and guides the water in the washing tub from the overflow port to the drainage channel;
  • the water supply part supplies water to the washing tub; and the hollow
  • the barrel cleaning member is fixed to the inner barrel and has an upper surface portion, an outer peripheral portion, a water storage portion, and a guide path, the upper surface portion is provided with a water receiving port for receiving water from the water supply portion, and the outer peripheral portion
  • the present invention is characterized in that the spout port opens toward the radially outer side with respect to the rotation axis of the inner tub or in a tangential direction relative to a circumferential direction around the rotation axis.
  • the present invention is characterized in that the flow channel area of the downstream region on the side of the water discharge port in the guide path is equal to or smaller than the flow path area of the upstream region on the side of the water storage part in the guide path.
  • the present invention is characterized in that the tub cleaning member has a partition that partitions the inner space of the tub cleaning member into a plurality of the water storage portions.
  • the present invention is characterized in that a water supply port for dropping the water in the water storage portion into the washing tub is provided in the tub cleaning member.
  • the washing machine when water is supplied into the washing tub through the water supply unit, the water flows back and forth between the outer tank and the inner tub through the through hole of the inner tub, thereby accumulating in the entire washing tub.
  • the water in the washing tub is discharged through the drainage channel from the drain outlet of the outer tub.
  • the water on the water surface side that is, the upper side, will be guided from the overflow to the drain through the overflow and discharged through the drain.
  • the laundry enters and exits the inner tub through the opening of the outer tub disposed at a position higher than the overflow port and the inlet and outlet of the inner tub.
  • the tub cleaning member fixed to the inner tub, when the water receiving port provided on the upper surface receives water from the water supply part, the water falls through the water receiving port and is stored in the water storage part.
  • the tub cleaning member rotates integrally with the inner tub, the water in the water storage unit passes through the guide path due to centrifugal force, reaches the water discharge port on the outer periphery of the tub cleaning member, and is discharged from the water discharge port. Since the spouting port is arranged at a position higher than the overflow port, the water spouted from the spouting port reaches even the dirt in the washing tub at a position higher than the overflow port to remove the dirt. Therefore, the washing tub can be effectively cleaned.
  • the water spout since the water spout opens toward the outside in the radial direction based on the rotation axis of the inner tub or in a tangential direction relative to the circumferential direction around the rotation axis, the water spouted from the water spout can be deliberately splashed outward.
  • the dirt on the inner peripheral surface of the bucket is at a position higher than the overflow to effectively remove the dirt. In this way, the washing tub can be cleaned more efficiently.
  • the flow channel area of the downstream region on the side of the spout in the guide path is smaller than the flow path area of the upstream region on the side of the water storage part in the guide path, the water in the guide path will flow from the spout.
  • each water storage part is small. Therefore, since water can be rapidly stored in each water storage part, preparations for washing the washing tub can be quickly completed.
  • the water supply port for dropping the water in the water storage part into the washing tub is provided on the tub cleaning member, the water from the water supply part can pass through the tub when the washing tub is not being cleaned.
  • the water storage part of the cleaning member drops into the washing tub from the water supply port to supply water to the washing tub.
  • Fig. 1 is a schematic longitudinal sectional right view of a washing machine according to one embodiment of the present invention.
  • Fig. 2 is an enlarged view in which the tub cleaning member is pulled out from Fig. 1 .
  • Fig. 3 is a plan view of the tub cleaning member.
  • Fig. 4 is a sectional view taken along the line AA of Fig. 2 .
  • Fig. 5 is an enlarged view of a main part in Fig. 1 .
  • Fig. 6 is a flowchart showing a tub cleaning process performed in the washing machine.
  • washing machine 3: outer barrel; 3D: overflow; 3F: drain; 3G: opening; 4: inner barrel; 4C: entrance; 4D: through hole; 6: motor; 8: washing barrel; 10: washing barrel Component; 10B: peripheral wall; 10C: water supply port; 10D: water discharge port; 10EA: upper surface; 10G: water intake; 10H: partition; 10I: internal space; Upstream area; 10J: water storage part; 13: water supply part; 14: drainage channel; 15: overflow channel; J: axis; R: radial direction; R1: radial outer side; S: circumferential direction; T: tangential direction; Z2 : Lower side.
  • Fig. 1 is a vertically sectional right side view of a washing machine 1 according to an embodiment of the present invention.
  • the direction perpendicular to the page in FIG. 1 is called the left-right direction X of the washing machine 1
  • the left-right direction in FIG. 1 is called the front-back direction Y of the washing machine 1
  • the up-down direction in FIG. Z is called the left-right directions X
  • the rear side of the paper in FIG. 1 is referred to as the left side X1
  • the front side of the paper in FIG. 1 is referred to as the right side X2.
  • the front-rear direction Y the left side in FIG.
  • FIG. 1 is referred to as a front side Y1
  • the right side in FIG. 1 is referred to as a rear side Y2
  • the upper side is referred to as an upper side Z1
  • the lower side is referred to as a lower side Z2.
  • the washing machine 1 includes: a cabinet 2, which constitutes the shell of the washing machine 1; an outer tub 3, which is accommodated in the cabinet 2, and can store water; an inner tub 4, which is accommodated in the outer tub 3; a rotating wing 5, which is accommodated in the inner tub 4; 6 , as an example of a driving unit that generates torque for rotating the inner tub 4 and the rotor blade 5 ; and an electric transmission mechanism 7 that transmits the torque of the motor 6 to the inner tub 4 and the rotor blade 5 .
  • the combination of the outer tub 3 and the inner tub 4 constitutes a washing tub 8 .
  • the washing machine 1 includes a balancer 9 mounted on the upper end of the inner tub 4 and a tub cleaning member 10 fixed to the balancer 9 .
  • the box body 2 is made of metal, for example, and is formed in a box shape.
  • An opening 2B that communicates the inside and outside of the case 2 is provided on the upper surface 2A.
  • Door 11 for opening and closing opening 2B is provided on upper surface 2A.
  • a display operation unit 12 constituted by a liquid crystal operation panel or the like is provided in an area around the opening 2B of the upper surface 2A. The user of the washing machine 1 can freely select the operating conditions of the washing machine 1 or instruct the washing machine 1 to start or stop the operation by operating a switch on the display operation unit 12 or the like. Information related to the operation of washing machine 1 is visually displayed on a liquid crystal panel or the like of display operation unit 12 .
  • the outer tub 3 is made of resin, for example, and is formed in a bottomed cylindrical shape.
  • the tub 3 has an axis J extending in the up-down direction Z at its center.
  • the circumferential direction around the axis J is referred to as a circumferential direction S
  • the radial direction based on the axis J is referred to as a radial direction R.
  • the direction farther from the axis J is called the outer side of the radial R, that is, the radial outer side R1
  • the direction closer to the axis J is called the inner side of the radial R, that is, the radial inner side R2.
  • the outer tub 3 has: a substantially cylindrical peripheral wall 3A disposed along the vertical direction Z; a bottom wall 3B that blocks the hollow portion of the peripheral wall 3A from the lower side Z2; and an annular annular wall 3C facing the peripheral wall 3A.
  • the upper edge of the rim is hemmed and protrudes radially inwardly R2.
  • An overflow port 3D penetrating through the peripheral wall 3A in the radial direction R is provided on the upper portion of the peripheral wall 3A.
  • the bottom wall 3B is formed in a disk shape extending substantially horizontally, and a through-hole 3E penetrating the bottom wall 3B in the vertical direction Z is provided at the center of the bottom wall 3B.
  • a drain port 3F penetrating the bottom wall 3B in the vertical direction Z is provided at a position avoiding the through hole 3E on the bottom wall 3B.
  • the annular wall 3C is sometimes referred to as a "tub cowl".
  • An opening 3G communicating with the hollow portion of the peripheral wall 3A from the upper side Z1 is provided inside the annular wall 3C. The opening 3G is opposed to and communicates with the opening 2B of the case 2 from the lower side Z2.
  • a relay port 3H penetrating the annular wall 3C in the vertical direction Z is provided at the rear end portion of the annular wall 3C.
  • the opening 3G and the relay port 3H are disposed at a position higher than the overflow port 3D, and the overflow port 3D is disposed at a position higher than the drain port 3F.
  • the washing machine 1 also includes: a water supply unit 13, which supplies water to the washing tub 8; a drainage channel 14, which is connected to the drain outlet 3F, and a part of the drainage channel 14 is pulled out of the casing 2, that is, outside the machine; and an overflow channel 15, which The overflow port 3D is connected to the drainage channel 14 .
  • the water supply part 13 includes: a detergent box 16, which is arranged on the upper side Z1 of the relay port 3H of the outer tub 3 in the casing 2; Introduced into the tank 2; and the water supply valve 18 is located in the middle of the water supply channel 20.
  • the main body 16A is provided with a cylindrical water guide 16C protruding from the bottom wall toward the lower side Z2.
  • the lower end of the water guiding path 16C is arranged directly above the relay port 3H of the tub 3 .
  • the lower end of the water guiding path 16C is disposed so as to be away from the relay port 3H toward the upper side Z1, but may be connected to the relay port 3H.
  • a portion 17A of the water supply channel 17 inside the housing 2 extends in the vertical direction Z in this embodiment, and the lower end of the portion 17A faces the inside of the main body 16A of the detergent box 16 from the upper side Z1.
  • the water supply valve 18 When the water supply valve 18 is opened, the water from the faucet falls from the water supply channel 17 into the main body 16A, carrying the detergent in the main body 16A, and falls from the water guide channel 16C to the relay port 3H of the outer tub 3 .
  • the above-mentioned situation will be added in detail later, and the water dropped to the relay port 3H will be stored in the outer tub 3 .
  • the water supply valve 18 is closed, the water supply to the outer tub 3, that is, the washing tub 8, is stopped.
  • a drain valve 19 is provided in the middle of the drain path 14 .
  • the overflow channel 15 has: one end (not shown) connected to the overflow port 3D of the tub 3 ;
  • the water on the upper side Z1 in the outer tub 3 overflows from the overflow port 3D to the overflow channel 15 and is guided to the drainage channel 14 by the overflow channel 15 to be discharged outside the machine.
  • the inner tub 4 is made of metal, for example, and is formed in a bottomed cylindrical shape that is slightly smaller than the outer tub 3, and can accommodate laundry therein.
  • the inner tub 4 has a substantially cylindrical peripheral wall 4A disposed along the vertical direction Z, and a bottom wall 4B provided at the lower end of the inner tub 4 to close the hollow portion of the peripheral wall 4A from the lower side Z2.
  • the inner peripheral surface of the peripheral wall 4A and the upper surface of the bottom wall 4B are the inner surface of the inner tub 4 .
  • the upper end of the inner tub 4 is provided with an inlet and outlet 4C surrounded by the upper end of the inner peripheral surface of the peripheral wall 4A.
  • the port 4C exposes the hollow portion of the peripheral wall 4A to the upper side Z1, and is in a state of facing and communicating with the opening 3G of the tub 3 from the lower side Z2.
  • the user inserts and removes laundry (not shown) from the upper side Z1 into the inner tub 4 through the opened opening 2B, the opening 3G, and the inlet and outlet 4C.
  • the inner barrel 4 is coaxially arranged in the outer barrel 3 .
  • the inner tub 4 housed in the outer tub 3 is rotatable around the axis J as a rotation axis.
  • the axis J extends in the vertical direction through the center of the inner tub 4 in this embodiment, but may extend in an oblique direction with respect to the vertical direction.
  • the inclination direction is a direction that deviates toward the front side Y1 as it goes toward the upper side Z1.
  • At least any one of the peripheral wall 4A and the bottom wall 4B of the inner tub 4 is provided with a plurality of through holes 4D, and the water in the outer tub 3 can pass between the outer tub 3 and the inner tub 4 through the through holes 4D. Thereby, also can store water in the inner bucket 4, thereby store water in the whole washing bucket 8, the water level in the outer bucket 3 is consistent with the water level in the inner bucket 4.
  • the bottom wall 4B of the inner tub 4 is formed in a disk shape extending substantially parallel to the bottom wall 3B of the outer tub 3 at an interval above Z1.
  • a through-hole 4E penetrating the bottom wall 4B in the up-down direction Z is provided at a center position of the bottom wall 4B that coincides with the axis J.
  • the bottom wall 4B is provided with a tubular support shaft 21 that surrounds the through hole 4E and extends toward the lower side Z2 along the axis J.
  • the support shaft 21 is inserted through the through-hole 3E of the bottom wall 3B of the outer tank 3, and the lower end part of the support shaft 21 is located in the lower side Z2 than the bottom wall 3B.
  • the rotor blade 5 is a so-called pulsator, formed in a disk shape with the axis J as a center, and arranged on the bottom wall 4B inside the inner tub 4 .
  • the rotary blade 5 is provided with a rotary shaft 22 extending from the central portion thereof to the lower side Z2 along the axis J. As shown in FIG.
  • the rotating shaft 22 is inserted through the hollow portion of the supporting shaft 21 , and the lower end of the rotating shaft 22 is located on the lower side Z2 than the bottom wall 3B of the outer tank 3 .
  • the motor 6 is an electric motor such as an inverter motor.
  • the motor 6 is disposed on the lower side Z2 of the tub 3 within the casing 2 .
  • the motor 6 has an output shaft 23 that rotates about an axis J, generates torque, and outputs the torque from the output shaft 23 .
  • the transmission mechanism 7 is interposed between the respective lower end portions of the support shaft 21 and the rotating shaft 22 and the upper end portion of the output shaft 20 protruding from the motor 6 to the upper side Z1.
  • the transmission mechanism 7 selectively transmits the torque output from the output shaft 23 of the motor 6 to one or both of the support shaft 21 and the rotation shaft 22 .
  • a known clutch or the like is used for the transmission mechanism 7 .
  • the inner tub 4 receives the torque from the motor 6 and is rotationally driven about the axis J as a rotation center.
  • the rotary blade 5 receives the torque from the motor 6 and is rotationally driven around the axis J as a rotation center.
  • the balancer 9 is an annular hollow body extending in the circumferential direction S, and is coaxially fixed to the upper end portion of the circumferential wall 4A of the inner tub 4 .
  • the balancer 9 is a member for reducing the vibration of the inner tub 4 during rotation, and a liquid such as salt water is contained in a chamber 9A in the balancer 9 to help dampen the vibration.
  • the tub cleaning member 10 is an annular hollow body extending in the circumferential direction S, and is fixed to the inner tub 4 via the balancer 9 by being coaxially fixed to the upper end surface 9B of the balancer 9 .
  • the inner diameter and outer diameter of the tub cleaning member 10 are respectively the same as those of the balancer 9 . Therefore, the inner peripheral surface of the inner peripheral wall 10A constituting the inner peripheral portion of the barrel cleaning member 10 is configured to be coplanar with the inner peripheral surface 9C of the balancer 9, and the outer peripheral surface of the outer peripheral wall 10B constituting the outer peripheral portion of the tub cleaning member 10 It is arranged so as to be coplanar with the outer peripheral surface 9D of the balancer 9 .
  • inner peripheral wall 10A and outer peripheral wall 10B of tub cleaning member 10 are annular plates arranged in vertical direction Z and extending in circumferential direction S.
  • a water supply port 10C penetrating the inner peripheral wall 10A in the radial direction R is provided at the lower end portion of the inner peripheral wall 10A.
  • a plurality of water supply ports 10C may be arranged at equal intervals along the circumferential direction S, or only one water supply port 10C may be provided so as to extend over the entire area of the inner peripheral wall 10A in the circumferential direction S.
  • the outer peripheral wall 10B is provided with a plurality of spouting ports 10D arranged at equal intervals along the circumferential direction S. As shown in FIG. Each spout 10D opens toward the radially outer side R1 in this embodiment, but may also open toward the tangential direction T with respect to the circumferential direction S (see FIG. 4 ).
  • the upper end of the inner peripheral wall 10A and the upper end of the outer peripheral wall 10B are arranged at the same height position.
  • the tub cleaning member 10 has an upper wall 10E spanning between the upper end of the inner peripheral wall 10A and the upper end of the outer peripheral wall 10B.
  • the upper wall 10E is in the shape of a thinner plate in the vertical direction Z, and most of the upper surface portion 10EA extends horizontally in the radial direction R.
  • the outer edge 10EB of the radially outer side R1 and the outer edge 10EB of the radially inner side R2 may be used.
  • the inner edge 10EC protrudes a section to the upper side Z1.
  • the tub cleaning member 10 has a lower wall 10F spanning between the lower end of the inner peripheral wall 10A and the lower end of the outer peripheral wall 10B.
  • each water discharge port 10D is disposed on the upper side Z1, that is, at a position higher than the water supply port 10C of the inner peripheral wall 10A.
  • FIG. 3 is a plan view of the tub cleaning member 10 .
  • an arc-shaped water receiving port 10G that penetrates the upper wall 10E in the vertical direction Z and extends in the circumferential direction S.
  • a plurality of water receiving ports 10G of the same size are provided, and in this embodiment, four water receiving ports 10G of the same size are provided and arranged in a row along the circumferential direction S at equal intervals.
  • the tub cleaning member 10 has a plurality of partitions 10H arranged one by one between adjacent water inlets 10G.
  • Fig. 4 is a sectional view taken along the line AA of Fig. 2 .
  • four partitions 10H are provided, and each partition 10H has a plate shape extending in the radial direction R, and is bridged between the inner peripheral wall 10A and the outer peripheral wall 10B.
  • the tub cleaning member 10 has an annular internal space 10I extending along the inner peripheral wall 10A, and the internal space 10I is partitioned into a plurality of water storage portions 10J of the same size by these partition members 10H.
  • the same number of water storage parts 10J as the water inlet 10G is provided.
  • One water storage part 10J is each arrange
  • the water receiving port 10G has the same size as the water storage part 10J directly below it when viewed from above (see FIG. 3 ).
  • the tub cleaning member 10 has an annular rib 10K arranged between the inner peripheral wall 10A and the outer peripheral wall 10B and extending in the axial direction S. As shown in FIG. A water storage portion 10J is defined between the inner peripheral wall 10A and the rib 10K. At the same position in the circumferential direction S of the rib 10K as the water discharge ports 10D of the outer peripheral wall 10B, a relay port 10L that is wider in the circumferential direction S than the water discharge port 10D is provided so as to penetrate the rib 10K in the radial direction R.
  • the tub cleaning member 10 has a pair of ribs 10M connecting the spout port 10D and the relay port 10L which are at the same position in the circumferential direction S. As shown in FIG.
  • the radially outer R1 end portions of the pair of ribs 10M are connected to both end portions in the circumferential direction S of the water discharge port 10D one by one.
  • the radially inner R2 end portions of the pair of ribs 10M are connected to both end portions in the circumferential direction S of the relay port 10L one by one.
  • One guide path 10N is provided between the pair of ribs 10M. Since the pair of ribs 10M are provided in the same number as the water discharge ports 10D, the entire tub cleaning member 10 is provided with the same number of guide paths 10N as the water discharge ports 10D.
  • Each guide path 10N is connected to the water discharge port 10D and the water storage part 10J which are at the same position in the circumferential direction S. As shown in FIG. In each guide path 10N, the area on the water discharge port 10D side is referred to as a downstream area 10NA, and the area on the water storage portion 10J side is referred to as an upstream area 10NB. In each guide path 10N, the distance between the pair of ribs 10M in the circumferential direction S becomes narrower toward the radially outer side R1 , and therefore the guide path 10N becomes narrower in the circumferential direction S as it goes radially outer R1 .
  • the guide path 10N is sandwiched by the upper wall 10E and the lower wall 10F from the vertical direction Z, and in the lower wall 10F, the outer edge portion 10FA is arranged at a higher position than the inner edge portion 10FB, so the guide path 10N goes radially outward R1 On the other hand, it narrows in the vertical direction Z (refer to FIG. 2 ). Accordingly, in each guide path 10N, the flow path area of the downstream region 10NA is equal to or smaller than the flow path area of the upstream region 10NB.
  • the flow path area refers to the cross-sectional area of the guide path 10N when cut along the circumferential direction S or the tangential direction T.
  • Fig. 5 is an enlarged view of a main part in Fig. 1 .
  • each water spout 10D is arranged at a position higher than the overflow port 3D of the outer tub 3, and each water receiving port 10G is in a circular shape with the outer tub 3 in the radial direction R.
  • the connection port 3H of the wall 3C is the same as the position lower than the connection port 3H. Therefore, each water receiving port 10G is always located directly below the relay port 3H.
  • the water supply port 10C provided on the inner peripheral wall 10A of the tub cleaning member 10 faces in the inner tub 4 from the radially outer side R1 and the upper side Z1 . It should be noted that the space surrounded by the balancer 9 and the space surrounded by the tub cleaning member 10 can also be regarded as the entrance and exit 4C of the inner tub 4 .
  • the washing machine 1 further includes a control unit 30 , which is made of, for example, a microcomputer and built in the casing 2 .
  • the control unit 30 includes: CPU (Central Processing Unit); memories such as ROM (Read Only Memory) and RAM (Random Access Memory); and a timer for keeping time.
  • the motor 6 , the transmission mechanism 7 , the display operation unit 12 , the water supply valve 18 , and the drain valve 19 are each electrically connected to the control unit 30 .
  • the control unit 30 controls the motor 6 to rotate at a desired rotational speed by controlling the duty ratio of the voltage applied to the motor 6 .
  • the control unit 30 switches the transmission destination of the torque of the motor 6 to one or both of the support shaft 21 and the rotation shaft 22 by controlling the transmission mechanism 7 .
  • control unit 30 When the user operates the display operation unit 12 to select an operating condition or the like, the control unit 30 receives the selection.
  • the control unit 30 controls the display content of the display operation unit 12 .
  • the control unit 30 controls the opening and closing of the water supply valve 18 and the drain valve 19 .
  • the control unit 30 controls the operations of the motor 6 , the transmission mechanism 7 , the water supply valve 18 , and the drain valve 19 to perform a washing operation.
  • the washing operation includes: a washing process for washing the laundry in the inner tub 4; a rinsing process for rinsing the laundry in the inner tub 4 after the washing process; and a dehydration process for rotating the inner tub 4 to dehydrate the laundry.
  • a plurality of rinsing processes may be performed, and among the dehydration processes there are: an intermediate dehydration process performed in the middle of the washing operation, and a final dehydration process performed at the end of the washing operation.
  • the washing machine 1 may also be an integrated washer-dryer that performs a drying process of drying the laundry Q after the final dehydration process.
  • the control unit 30 opens the water supply valve 18 while the drain valve 19 is closed. At this time, the motor 6 is in a stopped state, so both the inner bucket 4 and the rotor 5 are in a static state.
  • the water supply valve 18 is opened, the water from the faucet falls from the water supply path 17 into the detergent box 16 in the water supply part 13, and carries the detergent in the detergent box 16 from the water guide 16C to the relay port of the outer tub 3. 3H falls (see arrow P1).
  • the water falling from the water supply part 13 to the relay port 3H falls to any water receiving port 10G directly below the relay port 3H in the upper surface part 10EA of the bucket cleaning member 10, is received by the water receiving port 10G and then passes through the water receiving port. 10G falls to water storage part 10J (refer arrow P2).
  • the water in the water storage portion 10J falls into the inner tub 4 , that is, the washing tub 8 through the nearest water supply port 10C on the inner peripheral wall 10A of the tub cleaning member 10 (see arrow P3 ).
  • All the detergent in the detergent box 16 is supplied into the inner tub 4 by the water supply process.
  • the control unit 30 switches the transmission mechanism 7 as necessary so as to transmit the torque of the motor 6 to the rotor blade 5 , and then drives the motor 6 to rotate the rotor blade 5 .
  • the laundry in the inner tub 4 is agitated and washed by the rotating rotor blade 5 as the agitation process.
  • the dirt of the laundry is decomposed by the detergent dissolved in water.
  • the control unit 30 stops the motor 6 to end the stirring process, and opens the drain valve 19 to drain the water in the washing tub 8 as a draining process.
  • the cleaning process ends.
  • the content of the rinsing process is substantially the same as that of the washing process except that no detergent is present.
  • the control unit 30 stores water, specifically tap water, in the washing tub 8 through the water supply process, and then performs the agitation process, thereby agitating and rinsing the laundry in the inner tub 4 . Thereafter, when a predetermined agitation time elapses, the control unit 30 completes the rinsing process by executing the drainage process.
  • the control unit 30 rotates the inner tub 4 at a high speed with the drain valve 19 opened.
  • the laundry in inner tub 4 is dehydrated by the centrifugal force generated by this high-speed rotation.
  • the water seeped from the laundry by dehydration is discharged from the drain passage 14 to the outside of the machine.
  • the rotation conditions of the inner tub 4 can also be different in the intermediate dehydration process and the final dehydration process, especially, the maximum rotational speed of the inner tub 4 in the final dehydration process is higher than the maximum rotational speed of the inner tub 4 in the intermediate dehydration process.
  • there may be water in the water storage portion 10J of the tub cleaning member 10 and in this case, the tub cleaning member 10 can also help to reduce the vibration of the inner tub 4 during rotation like the balancer 9 .
  • Such a tub cleaning member 10 may be referred to as a “top balancer”, or may be regarded as a part of the balancer 9 .
  • the control part 30 switches the transmission mechanism 7 so that the torque of the motor 6 is not transmitted to the inner tub 4 and stops the motor 6, so that the inner tub 4 rotates inertially.
  • the control part 30 closes the drain valve 19 .
  • the control unit 30 executes a tub cleaning process for cleaning the washing tub 8 as part of the washing operation or processing independent of the washing operation. In addition, when performing as part of a washing operation, it is good to perform a tub washing process after a final spinning process.
  • the tub cleaning process will be described with reference to the flow chart in FIG. 6 . It should be noted that, during the tub washing process, the drain valve 19 is always in an open state.
  • the control part 30 switches the transmission mechanism 7 so as to transmit the torque of the motor 6 to the inner tub 4 before the tub washing process starts. It should be noted that, if the transmission mechanism 7 has already been switched, the process of switching the transmission mechanism 7 is omitted.
  • the control unit 30 opens the water supply valve 18 at the beginning of the tub washing process (step S1). Then, the control unit 30 rotates the inner tub 4 at a low speed by operating the motor 6 (step S2).
  • An example of the rotational speed of the motor 6 at this time is 50 rpm or less.
  • the inner tub 4 may rotate continuously at a constant rotation speed, or may rotate intermittently so as to repeatedly increase and decrease the rotation speed.
  • the inner tub 4 is supplied with water while rotating, so that the water dropped from the water supply unit 13 to the relay port 3H falls through all the water receiving ports 10G on the upper surface portion 10EA of the tub cleaning member 10 rotating with the inner tub 4 at a low speed (refer to Arrow P2) in FIG. 5 is stored in the water storage portion 10J directly below each water receiving port 10G.
  • the water in each water storage part 10J is driven away from the water supply port 10C to the radially outer side R1 by the centrifugal force generated by the low-speed rotation of the inner tub 4, so the water will remain stored in the water storage part 10J without flowing from the water supply port 10C to the radially outer side R1.
  • Inner bucket 4 falls. It should be noted that the processing of step S2 may be executed simultaneously with the processing of step S1, or may be executed earlier than the processing of step S1.
  • the control unit 30 which has accumulated water to all the water storage parts 10J, stops the water supply by closing the water supply valve 18 while the inner tub 4 continues to rotate at a low speed (step S3), and then increases the rotation speed of the motor 6 to stop the water supply (step S3).
  • the inner tub 4 is stably rotated at a high speed to, for example, 700 rpm (step S4).
  • each water storage portion 10J of the tub cleaning member 10 rotating at a high speed together with the inner tub 4 flows through any one of the guide paths 10N and is guided to the water spout 10D by the centrifugal force increased corresponding to the high-speed rotation.
  • the water discharge port 10D discharges water radially outward R1 with good momentum (see arrow P4 in FIG. 5 ). Since each spout 10D is arranged at a position higher than the overflow port 3D, the water spouted from the spout 10D may even reach the washing tub 8, especially in the inner peripheral surface of the peripheral wall 3A of the outer tub 3, which is higher than the overflow port 3D. The dirt in the position, thereby removing the dirt. Therefore, washing tub 8 can be effectively cleaned. Furthermore, even if the user does not wash the washing tub 8 with detergent or the like, the washing tub 8 can be kept clean.
  • the discharge port 10D opens toward the radially outer side R1 or the tangential direction T with respect to the circumferential direction S (see FIG. 4 ).
  • the water spouted from the water discharge port 10D can be poured intentionally on the dirt located at a position higher than the overflow port 3D on the inner peripheral surface of the tub 3 to effectively remove the dirt.
  • washing tub 8 can be cleaned more effectively.
  • water is jetted radially from the plurality of water spouts 10D and splashed onto the inner surface of the peripheral wall 3A of the tub 3 , so that the peripheral wall 3A can be cleaned over the entire area in the circumferential direction S without dead space.
  • the water in the guide path 10N will The dirt which is higher than the overflow port 3D in the washing tub 8 is spouted from the water discharge port 10D with good water force. Therefore, the dirt can be effectively removed, thereby enabling washing tub 8 to be more effectively washed.
  • the water poured onto the washing tub 8 from each water discharge port 10D of the tub cleaning member 10 may be chlorous acid water, ozone water, etc. having a high cleaning effect.
  • the control unit 30 may stop the motor 6 because the water in the water storage unit 10J is drained when the inner tub 4 is continuously rotated at a high speed for a predetermined time.
  • the loop of steps S1 to S4 may be repeated a predetermined number of times. Of course, the prescribed number of times may be only one time.
  • control unit 30 ends the tub cleaning process. It should be noted that the water remaining in each water storage portion 10J in the tub cleaning member 10 is discharged from the water storage portion 10J through the water supply port 10C that also functions as a water discharge hole (see arrow P3 in FIG. 5 ).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种能洗净洗涤桶（8）的洗衣机（1）。洗衣机(1)包括：洗涤桶(8)，具有外桶(3)和内桶(4)；排水路（14），排出洗涤桶(8)内的水；溢水路（15），与设于外桶(3)的溢水口(3D)连接，将洗涤桶(8)内的水从溢水口(3D)引导向排水路（14）；供水部(13)，向洗涤桶(8)内供水；以及中空的桶洗净构件(10)，固定于内桶(4)。内桶(4)接受驱动部的转矩而旋转。桶洗净构件(10)具有：上表面部(10EA)，设有承接来自供水部(13)的水的接水口(10G)；外周壁(10B)，设有配置于比溢水口(3D)高的位置的吐水口(10D)；贮水部(10J)，蓄留经过接水口(10G)落下的水；以及引导路(10N)，将贮水部(10J)内的水引导向吐水口(10D)。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
下述专利文献1所记载的洗衣机包括：水桶、配置于水桶内的洗涤兼脱水桶以及使洗涤兼脱水桶旋转的马达。在洗衣机中，当向洗涤兼脱水桶内供水后洗涤兼脱水桶旋转时，水桶内会产生水流并在洗涤兼脱水桶与水桶之间产生泡沫，由此进行桶洗净。
不限于专利文献1的洗衣机，在一般的洗衣机的洗涤桶内，有时会以由洗涤运转后残留的洗涤剂残渣、皮脂污垢等(以下，仅称为“污垢”。)形成的生物膜来作为养料而产生霉菌并沿洗涤桶的周向呈环状分布。由于生物膜多产生于在洗涤运转中蓄留于洗涤桶内的水的水面附近，因此为了防止生物膜的产生即霉菌的产生，需要去除洗涤桶内处于较高位置的污垢。
在一般的洗涤桶的上部设有排出洗涤桶内超过规定水位的水的溢水口，但上述的污垢由于溅水等原因，有时还存在于洗涤桶内比溢水口高的位置。但是，在专利文献1的桶洗净的情况下，难以去除洗涤桶内比溢水口靠上侧的污垢。再者，在专利文献1的桶洗净中，恐怕会因残留于洗涤兼脱水桶与水桶之间的泡沫而导致霉菌增殖，也恐怕会因该泡沫成为阻力使得洗涤兼脱水桶无法顺畅地旋转而导致马达受到约束而发生故障。
现有技术文献
专利文献
专利文献1：日本特开2009－39318号公报
发明内容
发明所要解决的问题
本发明是基于这样的背景而完成的，其目的在于提供一种能有效地洗净洗涤桶的洗衣机。
用于解决问题的方案
本发明是一种洗衣机，包括：驱动部，产生转矩；洗涤桶，具有外桶和内桶，所述外桶可蓄水，并设有排水口、配置于比所述排水口高的位置的溢水口以及配置于比所述溢水口高的位置的开口，所述内桶配置于所述外桶内，接受所述驱动部的转矩而旋转，并设有用于使水在所述内桶与所述外桶之间往来的贯通孔和从下侧与所述开口对置的出入口，洗涤物经由所述开口和所述出入口出入于所述内桶；排水路，与所述排水口连接，排出所述洗涤桶内的水；溢水路，与所述溢水口连接，将所述洗涤桶内的水从所述溢水口引导向所述排水路；供水部，向所述洗涤桶内供水；以及中空的桶洗净构件，固定于所述内桶，具有上表面部、外周部、贮水部以及引导路，所述上表面部设有承接来自所述供水部的水的接水口，所述外周部设有配置于比所述溢水口高的位置的吐水口，所述贮水部蓄留经过所述接水口落下的水，所述引导路将所述贮水部内的水引导向所述吐水口。
此外，本发明的特征在于，所述吐水口朝向以所述内桶的旋转轴线为基准的径向的外侧或者相对于围绕所述旋转轴线的周向的切线方向开口。
此外，本发明的特征在于，所述引导路中的所述吐水口侧的下游区域的流路面积为所述引导路中的所述贮水部侧的上游区域的流路面积以下。
此外，本发明的特征在于，所述桶洗净构件具有将所述桶洗净构件的内部空间分隔为多个所述贮水部的分隔件。
此外，本发明的特征在于，在所述桶洗净构件设有使所述贮水部内的水向所述洗涤桶内落下的供水口。
发明效果
根据本发明，在洗衣机中，当通过供水部向洗涤桶内供水时，水经过内桶的贯通孔在外槽与内桶之间往来，由此蓄于整个洗涤桶。洗涤桶内的水从外桶的排水口经过排水路排出。当洗涤桶内的水位上升至外桶中配置于比排水口高 的位置的溢水口时，水面侧即上侧的水会从溢水口经过溢水路被引导向排水路并经过排水路排出。洗涤物经由外桶中配置于比溢水口高的位置的开口和内桶的出入口出入于内桶。
在固定于内桶的桶洗净构件中，当设于上表面部的接水口承接来自供水部的水时，该水会经过接水口落下而蓄于贮水部。当桶洗净构件与内桶一体旋转时，贮水部内的水会因离心力而经过引导路到达桶洗净构件的外周部的吐水口并从吐水口吐出。由于吐水口配置于比溢水口高的位置，因此从吐水口吐出的水甚至会到达洗涤桶中处于比溢水口高的位置的污垢来去除该污垢。因此，能有效地洗净洗涤桶。
此外，根据本发明，由于吐水口朝向以内桶的旋转轴线为基准的径向的外侧或者相对于围绕旋转轴线的周向的切线方向开口，因此，能使从吐水口吐出的水特意泼向外桶的内周面上处于比溢水口高的位置的污垢来有效地去除该污垢。这样，能更有效地洗净洗涤桶。
此外，根据本发明，由于引导路中的吐水口侧的下游区域的流路面积为引导路中的贮水部侧的上游区域的流路面积以下，因此，引导路内的水会从吐水口水势良好地吐出并被泼向洗涤桶中处于比溢水口高的位置的污垢。因此，能有效地去除该污垢，由此，能更有效地洗净洗涤桶。
此外，根据本发明，桶洗净构件的内部空间由分隔件分隔为多个贮水部，因此各个贮水部小。由此，能向各贮水部迅速地蓄水，因此能迅速地完成用于洗净洗涤桶的准备工作。
此外，根据本发明，在桶洗净构件设有使贮水部内的水向洗涤桶内落下的供水口，因此在不对洗涤桶进行洗净的情况下，能通过使来自供水部的水经由桶洗净构件的贮水部从供水口向洗涤桶内落下来向洗涤桶供水。
附图说明
图1是本发明的一个实施方式的洗衣机的示意性的纵剖右视图。
图2是从图1抽出桶洗净构件的放大图。
图3是桶洗净构件的俯视图。
图4是图2的A－A向视剖视图。
图5是图1中的主要部分的放大图。
图6是表示洗衣机中执行的桶洗净过程的流程图。
附图标记说明
1：洗衣机；3：外桶；3D：溢水口；3F：排水口；3G：开口；4：内桶；4C：出入口；4D：贯通孔；6：马达；8：洗涤桶；10：桶洗净构件；10B：外周壁；10C：供水口；10D：吐水口；10EA：上表面部；10G：接水口；10H：分隔件；10I：内部空间；10N：引导路；10NA：下游区域；10NB：上游区域；10J：贮水部；13：供水部；14：排水路；15：溢水路；J：轴线；R：径向；R1：径向外侧；S：周向；T：切线方向；Z2：下侧。
具体实施方式
以下，参照附图对本发明的实施方式进行具体说明。图1是本发明的一个实施方式的洗衣机1的纵剖右视图。将图1的与纸面正交的方向称为洗衣机1的左右方向X，将图1中的左右方向称为洗衣机1的前后方向Y，将图1中的上下方向称为洗衣机1的上下方向Z。左右方向X当中，将图1的纸面的里侧称为左侧X1，将图1的纸面的表侧称为右侧X2。前后方向Y当中，将图1中的左侧称为前侧Y1，将图1中的右侧称为后侧Y2。上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。
洗衣机1包括：箱体2，构成洗衣机1的外壳；外桶3，容纳于箱体2内，可蓄水；内桶4，容纳于外桶3内；旋转翼5，容纳于内桶4内；马达6，作为产生使内桶4和旋转翼5旋转的转矩的驱动部的一个例子；以及电动的传递机构7，向内桶4、旋转翼5传递马达6的转矩。外桶3和内桶4的组合构成洗涤桶8。洗衣机1包括装配于内桶4的上端部的平衡器9和固定于平衡器9的桶洗净构件10。
箱体2例如为金属制，形成为箱状。在上表面2A设有使箱体2的内外连通的开口2B。在上表面2A设有对开口2B进行开闭的门11。在上表面2A的开口2B的周围的区域设有由液晶操作面板等构成的显示操作部12。洗衣机1的使用 者能通过操作显示操作部12的开关等来自由选择洗衣机1的运转条件或向洗衣机1指示运转开始、运转停止等。显示操作部12的液晶面板等中以可目视的方式显示有与洗衣机1的运转相关的信息。
外桶3例如为树脂制，形成为有底圆筒状。外桶3具有在其中心沿上下方向Z延伸的轴线J。以下，将围绕轴线J的周向称为周向S，将以轴线J为基准的径向称为径向R。径向R当中，将远离轴线J的方向称为径向R的外侧即径向外侧R1，将向轴线J靠近的方向称为径向R的内侧即径向内侧R2。
外桶3具有：大致圆筒状的圆周壁3A，沿上下方向Z配置；底壁3B，从下侧Z2堵住圆周壁3A的中空部分；以及环状的环状壁3C，对圆周壁3A的上端缘进行包边并且向径向内侧R2突出。在圆周壁3A的上部设有沿径向R贯通圆周壁3A的溢水口3D。
底壁3B形成为大致水平地延伸的圆板状，在底壁3B的圆心位置设有沿上下方向Z贯通底壁3B的贯通孔3E。在底壁3B的避开贯通孔3E的位置设有沿上下方向Z贯通底壁3B的排水口3F。环状壁3C有时被称为“外桶罩”。在环状壁3C的内侧设有从上侧Z1与圆周壁3A的中空部分连通的开口3G。开口3G处于从下侧Z2与箱体2的开口2B对置并连通的状态。
在环状壁3C的圆周上的一处，在本实施方式中于环状壁3C的后端部设有沿上下方向Z贯通环状壁3C的中继口3H。开口3G和中继口3H配置于比溢水口3D高的位置，溢水口3D配置于比排水口3F高的位置。
洗衣机1还包括：供水部13，向洗涤桶8内供水；排水路14，与排水口3F连接，排水路14的一部分被拉出到箱体2之外即机外；以及溢水路15，将溢水口3D和排水路14相连。供水部13包括：洗涤剂盒16，在箱体2内配置于外桶3的中继口3H的上侧Z1；供水路17，与自来水的龙头(未图示)相连，供水路17的一部分被引入至箱体2内；以及供水阀18，设于供水路20的中途。
洗涤剂盒16的一个例子包括：箱状的主体16A，固定于箱体2；以及抽屉16B，容纳于主体16A内，抽屉16B的一部分向箱体2的开口2B露出。＝主体16A的上表面的大致整个区域开口而使主体16A的内部向上侧Z1开放。在主体16A设有从其底壁朝向下侧Z2突出的筒状的导水路16C。
导水路16C的下端配置于外桶3的中继口3H的正上方。导水路16C的下端在本实施方式中以向上侧Z1远离中继口3H的方式配置，但也可以与中继口3H连接。使用者拉出位于图1所示的容纳位置的抽屉16B来向抽屉16B的内部投入洗涤剂。之后，当使用者将抽屉16B推入至容纳位置时，洗涤剂被设置于主体16A内。
供水路17的位于箱体2内的部分17A在本实施方式中沿上下方向Z延伸，该部分17A的下端从上侧Z1面向洗涤剂盒16的主体16A的内部。当供水阀18打开时，来自龙头的水从供水路17落下到主体16A内，带着主体16A内的洗涤剂从导水路16C向外桶3的中继口3H落下。之后会对上述情况追加详细说明，而落下到中继口3H的水会蓄于外桶3内。当供水阀18关闭时，向外桶3即洗涤桶8内的供水停止。
在排水路14的中途设有排水阀19。当排水阀19处于关闭状态时，维持外桶3内蓄有水的状态。当排水阀19打开时，外槽3内的水经过排水路14向机外排出。溢水路15具有：一端(未图示)，与外桶3的溢水口3D连接；以及另一端15A，与排水路14中的比排水阀19远离外桶3的排水口3F的下游部分连接。当外桶3内的水位上升至溢水口3D时，外桶3内的上侧Z1的水从溢水口3D向溢水路15溢出并在被溢水路15引导至排水路14后向机外排出。
内桶4例如为金属制，形成为比外桶3小一圈的有底圆筒状，能在内部容纳洗涤物。内桶4具有：大致圆筒状的圆周壁4A，沿上下方向Z配置；以及底壁4B，设于内桶4的下端，从下侧Z2堵住圆周壁4A的中空部分。
圆周壁4A的内周面和底壁4B的上表面为内桶4的内面部。在内桶4的上端设有由圆周壁4A的内周面的上端包边的出入口4C。出入口4C使圆周壁4A的中空部分向上侧Z1露出，处于从下侧Z2与外桶3的开口3G对置并连通的状态。使用者经由开放的开口2B、开口3G以及出入口4C从上侧Z1向内桶4投入取出洗涤物(未图示)。
内桶4同轴配置于外桶3内。容纳于外桶3内的状态的内桶4能以轴线J为旋转轴线进行旋转。轴线J在本实施方式中经过内桶4的中心沿垂直方向延伸，但也可以沿相对于垂直方向的倾斜方向延伸。作为一个例子，倾斜方向是随着趋向上侧Z1而向前侧Y1偏移的方向。在内桶4的圆周壁4A和底壁4B中的至 少任一方设有多个贯通孔4D，外桶3内的水能经由贯通孔4D在外桶3与内桶4之间往来。由此，内桶4内也会蓄水，由此整个洗涤桶8中蓄水，外桶3内的水位与内桶4内的水位一致。
内桶4的底壁4B形成有相对于外桶3的底壁3B在上侧Z1隔开间隔地大致平行延伸的圆板状。在底壁4B的与轴线J一致的圆心位置设有沿上下方向Z贯通底壁4B的贯通孔4E。在底壁4B设有包围贯通孔4E且沿轴线J向下侧Z2延伸出的管状的支承轴21。支承轴21插通于外槽3的底壁3B的贯通孔3E，支承轴21的下端部位于比底壁3B靠下侧Z2处。
旋转翼5是所谓的波轮，形成为以轴线J为圆心的圆盘状，在内桶4内配置于底壁4B上。在旋转翼5的面向内桶4的出入口4C的上表面部设有向上侧Z1隆起且以轴线J为基准呈辐射状配置的多个隆起部5A。在旋转翼5设有从其中央部沿轴线J向下侧Z2延伸的旋转轴22。旋转轴22插通于支承轴21的中空部分，旋转轴22的下端部位于比外槽3的底壁3B靠下侧Z2处。
马达6是变频马达等电动马达。马达6在箱体2内配置于外桶3的下侧Z2。马达6具有以轴线J为中心进行旋转的输出轴23，产生转矩并从输出轴23输出该转矩。
传递机构7介于支承轴21和旋转轴22的各自的下端部与从马达6向上侧Z1突出的输出轴20的上端部之间。传递机构7将马达6从输出轴23输出的转矩选择地传递给支承轴21和旋转轴22中的一方或双方。传递机构7使用公知的离合器等。当来自马达6的转矩传递至支承轴21时，内桶4接受马达6的转矩而以轴线J为旋转中心被旋转驱动。当来自马达6的转矩传递至旋转轴22时，旋转翼5接受马达6的转矩而以轴线J为旋转中心被旋转驱动。
平衡器9是沿周向S延伸的圆环状的中空体，同轴固定于内桶4的圆周壁4A的上端部。平衡器9是降低旋转时的内桶4的振动的构件，平衡器9内的腔室9A中容纳有用于帮助减弱振动的盐水等液体。
桶洗净构件10是沿周向S延伸的圆环状的中空体，通过同轴固定于平衡器9的上端面9B而经由平衡器9固定于内桶4。桶洗净构件10的内径和外径分别与平衡器9的内径和外径相同。因此，构成桶洗净构件10的内周部的内周壁10A 的内周面配置为与平衡器9的内周面9C共面，构成桶洗净构件10的外周部的外周壁10B的外周面配置为与平衡器9的外周面9D共面。
参照从图1抽出桶洗净构件10的图2，桶洗净构件10的内周壁10A和外周壁10B是沿上下方向Z配置并沿周向S延伸的圆环状的板。在内周壁10A的下端部设有沿径向R贯通内周壁10A的供水口10C。既可以以沿周向S等间隔地排列的方式设置多个供水口10C，也可以以延及周向S上的内周壁10A的整个区域的方式仅设置一个供水口10C。在外周壁10B设有沿周向S等间隔地排列的多个吐水口10D。各吐水口10D在本实施方式中朝向径向外侧R1开口，但也可以朝向相对于周向S的切线方向T开口(参照图4)。
内周壁10A的上端和外周壁10B的上端配置于相同高度位置。桶洗净构件10具有架设于内周壁10A的上端与外周壁10B的上端之间的上壁10E。上壁10E呈上下方向Z上较薄的板状，其上表面部10EA中的大部分沿水平向径向R延伸，但也可以是，径向外侧R1的外缘10EB和径向内侧R2的内缘10EC向上侧Z1突出一段。
内周壁10A的下端和外周壁10B的下端在周向S上的大部分区域配置于相同高度位置。但是，在周向S上与吐水口10D相同的位置，外周壁10B的下端配置为比内周壁10A的下端靠上侧Z1。桶洗净构件10具有架设于内周壁10A的下端与外周壁10B的下端之间的下壁10F。在周向S上与吐水口10D相同位置的下壁10F中，径向外侧R1的外缘部10FA和径向内侧R2的内缘部10FB沿水平向径向R延伸，但两者之间的中途部10FC以随着趋向径向外侧R1而上升的方式倾斜。内缘部10FB形成为沿周向S水平地延伸的圆环状。各吐水口10D配置于比内周壁10A的供水口10C靠上侧Z1即更高的位置。
图3是桶洗净构件10的俯视图。在上壁10E的上表面部10EA中的靠近内缘10EC的径向内侧R2的区域，设有沿上下方向Z贯通上壁10E并沿周向S延伸的圆弧状的接水口10G。设有多个相同大小的接水口10G，在本实施方式中设有四个相同大小的接水口10G并以沿周向S等间隔地排列的方式配置。桶洗净构件10具有逐一配置于相邻的接水口10G之间的多个分隔件10H。
图4是图2的A－A向视剖视图。在本实施方式中设有四个分隔件10H，各个分隔件10H呈向径向R延伸的板状，架设于内周壁10A与外周壁10B之间。 桶洗净构件10具有沿内周壁10A延伸的圆环状的内部空间10I，而内部空间10I被这些分隔件10H分隔为相同大小的多个贮水部10J。设有与接水口10G相同数量的贮水部10J。在周向S处于相同位置的接水口10G的正下方各配置有一个贮水部10J。俯视时，接水口10G与其正下方的贮水部10J具有相同大小(参照图3)。
桶洗净构件10具有配置于内周壁10A与外周壁10B之间并沿轴向S延伸的圆环状的肋10K。在内周壁10A与肋10K之间划分有贮水部10J。在肋10K的在周向S与外周壁10B的各吐水口10D相同的位置，以沿径向R贯通肋10K的方式设有在周向S上比吐水口10D宽的中继口10L。
桶洗净构件10具有将在周向S处于相同位置的吐水口10D和中继口10L相连的一对肋10M。一对肋10M的径向外侧R1的端部与吐水口10D的周向S的两个端部一一连接。一对肋10M的径向内侧R2的端部与中继口10L的周向S的两个端部一一连接。在一对肋10M之间设有一个引导路10N。设有与吐水口10D相同数量的一对肋10M，因此在整个桶洗净构件10中，设有与吐水口10D相同数量即多个引导路10N。
各引导路10N与在周向S上处于相同位置的吐水口10D和贮水部10J连接。在各引导路10N中，将吐水口10D侧的区域称为下游区域10NA，将贮水部10J侧的区域称为上游区域10NB。在各引导路10N中，一对肋10M的周向S上的间隔随着趋向径向外侧R1而变窄，因此，引导路10N随着趋向径向外侧R1而在周向S上变窄。引导路10N被上壁10E和下壁10F从上下方向Z包夹，而在下壁10F中，外缘部10FA配置于比内缘部10FB高的位置，因此，引导路10N随着趋向径向外侧R1而在上下方向Z上变窄(参照图2)。由此，在各引导路10N中，下游区域10NA的流路面积为上游区域10NB的流路面积以下。流路面积是指沿周向S或切线方向T剖切时的引导路10N的截面积。
图5是图1中的主要部分的放大图。在固定于内桶4的状态下的桶洗净构件10中，各吐水口10D配置于比外桶3的溢水口3D高的位置，各接水口10G处于在径向R与外桶3的环状壁3C的中继口3H相同且比中继口3H低的位置。因此，每一个接水口10G都始终位于中继口3H的正下方。设于桶洗净构件10的内周壁10A的供水口10C从径向外侧R1且上侧Z1面向内桶4内。需要说明 的是，也可以将由平衡器9包围的空间、由桶洗净构件10包围的空间视为内桶4的出入口4C。
洗衣机1还包括控制部30，控制部30例如由微机构成并内置于箱体2内。控制部30包括：CPU(中央处理器)；ROM(只读存储器)、RAM(随机存取存储器)等存储器；以及计时用的计时器。马达6、传递机构7、显示操作部12、供水阀18以及排水阀19各自与控制部30电连接。控制部30通过控制施加给马达6的电压的占空比来控制马达6以所期望的转速旋转。控制部30通过控制传递机构7来将马达6的转矩的传递目标切换为支承轴21和旋转轴22中的一方或双方。当使用者操作显示操作部12对运转条件等进行选择时，控制部30接收该选择。控制部30控制显示操作部12的显示内容。控制部30控制供水阀18和排水阀19的开闭。
控制部30通过控制马达6、传递机构7、给水阀18以及排水阀19的动作来执行洗涤运转。洗涤运转具有：清洗过程，清洗内桶4内的洗涤物；漂洗过程，在清洗过程后漂洗内桶4内的洗涤物；以及脱水过程，使内桶4旋转来对洗涤物进行脱水。可以执行多次漂洗过程，脱水过程中存在：中间脱水过程，在洗涤运转的中途执行；以及最终脱水过程，在洗涤运转的最后执行。需要说明的是，洗衣机1也可以是在最终脱水过程后还执行烘干洗涤物Q的烘干过程的洗干一体机。
在清洗过程中，控制部30在关闭排水阀19的状态下打开供水阀18。此时，马达6处于停止的状态，因此，无论是内桶4还是旋转翼5都处于静止的状态。当供水阀18打开时，来自龙头的水在供水部13中从供水路17落下到洗涤剂盒16内，带着洗涤剂盒16内的洗涤剂从导水路16C向外桶3的中继口3H落下(参照箭头P1)。
从供水部13落下到中继口3H的水向位于桶洗净构件10的上表面部10EA中的中继口3H的正下方的任一个接水口10G落下，由接水口10G承接后经过接水口10G向贮水部10J落下(参照箭头P2)。贮水部10J内的水经过桶洗净构件10的内周壁10A上的最近的供水口10C向内桶4内即洗涤桶8内落下(参照箭头P3)。通过这样的供水处理，能向洗涤桶8供水。通过供水处理来向内桶4内供给洗涤剂盒16内的全部洗涤剂。
供水处理之后，控制部30根据需要来切换传递机构7以便将马达6的转矩传递给旋转翼5，之后通过驱动马达6来使旋转翼5旋转。由此，作为搅拌处理，内桶4内的洗涤物被旋转的旋转翼5搅拌清洗。此外，通过溶于水的洗涤剂，洗涤物的污垢被分解。当经过规定的搅拌时间时，控制部30通过停止马达6来结束搅拌处理，并打开排水阀19将洗涤桶8内的水排出来作为排水处理。由此，清洗过程结束。
漂洗过程的内容除了不存在洗涤剂这一点以外，与清洗过程实质上相同。具体而言，控制部30通过供水处理来向洗涤桶8内蓄留水，具体而言是自来水，之后执行搅拌处理，由此，对内桶4内的洗涤物进行搅拌漂洗。之后，当经过规定的搅拌时间时，控制部30通过执行排水处理来结束漂洗过程。
在脱水过程中，控制部30在打开排水阀19的状态下使内桶4高速旋转。通过由该高速旋转产生的离心力，内桶4内的洗涤物被脱水。通过脱水而从洗涤物渗出的水从排水路14向机外排出。但是，内桶4的旋转条件也可以在中间脱水过程和最终脱水过程中有所不同，特别是，最终脱水过程中的内桶4的最大转速比中间脱水过程中的内桶4的最大转速高。在内桶4的旋转过程中，桶洗净构件10的贮水部10J中可以有水，该情况下的桶洗净构件10也可以与平衡器9同样帮助减弱旋转时的内桶4的振动。
既可以将这样的桶洗净构件10称为“顶部平衡器”，也可以将这样的桶洗净构件10视为平衡器9的一部分。在脱水过程的最后阶段，控制部30切换传递机构7以使马达6的转矩不传递给内桶4并停止马达6，因此，内桶4会惯性旋转。在脱水过程的最后，控制部30关闭排水阀19。
作为洗涤运转的一环处理或独立于洗涤运转的处理，控制部30执行洗净洗涤桶8的桶洗净过程。需要说明的是，在作为洗涤运转的一环来执行的情况下，桶洗净过程在最终脱水过程之后执行为好。参照图6的流程图对桶洗净过程进行说明。需要说明的是，在桶洗净过程中，排水阀19始终处于打开的状态。控制部30在桶洗净过程开始之前切换传递机构7以便将马达6的转矩传递给内桶4。需要说明的是，如果已切换传递机构7，则省略切换传递机构7的处理。
控制部30在桶洗净过程的最初打开供水阀18(步骤S1)。然后，控制部30通过使马达6工作来使内桶4低速旋转(步骤S2)。此时的马达6的转速的 一个例子是50rpm以下。此时的内桶4既可以以恒定的旋转速度连续旋转，也可以以反复使旋转速度上升和下降的方式间歇旋转。
内桶4一边旋转一边进行供水，由此从供水部13落下到中继口3H的水分别经过与内桶4一起低速旋转的桶洗净构件10的上表面部10EA上的全部接水口10G落下(参照图5的箭头P2)，蓄于各接水口10G的正下方的贮水部10J。各贮水部10J内的水通过由内桶4的低速旋转产生的离心力而从供水口10C向径向外侧R1远去，因此会维持蓄于贮水部10J内的状态而不从供水口10C向内桶4落下。需要说明的是，步骤S2的处理既可以与步骤S1的处理同时执行，也可以比步骤S1的处理先执行。
如上所述，桶洗净构件10的内部空间10I被分隔件10H分隔为多个贮水部10J，因此各个贮水部10J的容量小。由此，能迅速向各贮水部10J蓄水，因此能迅速地完成用于洗净洗涤桶8的准备工作。然后，向全部贮水部10J无遗漏地蓄留了水的控制部30在使内桶4继续低速旋转的状态下通过关闭供水阀18来停止供水(步骤S3)，之后通过将马达6的转速提高至例如700rpm来使内桶4高速地稳定旋转(步骤S4)。
于是，与内桶4一起高速旋转的桶洗净构件10的各贮水部10J内的水通过与高速旋转相应地增大的离心力而流过任一个引导路10N并被引导向吐水口10D，从吐水口10D水势良好地向径向外侧R1吐出(参照图5的箭头P4)。由于各吐水口10D配置于比溢水口3D高的位置，因此从吐水口10D吐出的水甚至会到达洗涤桶8，特别是位于外桶3的圆周壁3A的内周面中比溢水口3D高的位置的污垢，从而去除该污垢。因此，能有效地洗净洗涤桶8。而且，即使使用者不使用洗涤剂等来洗净洗涤桶8，也能保持洗涤桶8清洁。
如上所述，吐水口10D朝向径向外侧R1或者相对于周向S的切线方向T开口(参照图4)。由此，能使从吐水口10D吐出的水特意泼向处于外桶3的内周面中比溢水口3D高的位置的污垢来有效地去除该污垢。如此一来，能更有效地洗净洗涤桶8。此外，水从多个吐水口10D呈辐射状吐出并被泼到外桶3的圆周壁3A的内表面，因此能遍及周向S上的整个区域无死角地洗净圆周壁3A。
而且，由于引导路10N中的吐水口10D侧的下游区域10NA的流路面积为 引导路10N中的贮水部10J侧的上游区域10NB的流路面积以下，因此，引导路10N内的水会从吐水口10D水势良好地吐出并被泼到洗涤桶8中处于比溢水口3D高的位置的污垢。因此，能有效地去除该污垢，由此，能更有效地洗净洗涤桶8。需要说明的是，从桶洗净构件10的各吐水口10D泼向洗涤桶8的水也可以是洗净效果高的亚氯酸水、臭氧水等。
也可以是，当使内桶4持续高速旋转规定时间时，贮水部10J内的水排净，因此控制部30停止马达6。步骤S1～步骤S4的循环也可以反复执行规定次数。当然，规定次数可以是仅一次。当该循环被执行规定次数时(步骤S5中为“否”)，控制部30结束桶洗净过程。需要说明的是，桶洗净构件10中残留在各贮水部10J内的水经过还作为放水孔发挥功能的供水口10C从贮水部10J排出(参照图5的箭头P3)。
本发明不限定于以上所说明的实施方式，可以在技术方案所记载的范围内进行各种变更。

Claims (5)

  1. 一种洗衣机，其特征在于，包括：
    驱动部，产生转矩；
    洗涤桶，具有外桶和内桶，所述外桶可蓄水，并设有排水口、配置于比所述排水口高的位置的溢水口以及配置于比所述溢水口高的位置的开口，所述内桶配置于所述外桶内，接受所述驱动部的转矩而旋转，并设有用于使水在所述内桶与所述外桶之间往来的贯通孔和从下侧与所述开口对置的出入口，洗涤物经由所述开口和所述出入口出入于所述内桶；
    排水路，与所述排水口连接，排出所述洗涤桶内的水；
    溢水路，与所述溢水口连接，将所述洗涤桶内的水从所述溢水口引导向所述排水路；
    供水部，向所述洗涤桶内供水；以及
    中空的桶洗净构件，固定于所述内桶，具有上表面部、外周部、贮水部以及引导路，所述上表面部设有承接来自所述供水部的水的接水口，所述外周部设有配置于比所述溢水口高的位置的吐水口，所述贮水部蓄留经过所述接水口落下的水，所述引导路将所述贮水部内的水引导向所述吐水口。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述吐水口朝向以所述内桶的旋转轴线为基准的径向的外侧或者相对于围绕所述旋转轴线的周向的切线方向开口。
  3. 根据权利要求1或2所述的洗衣机，其特征在于，
    所述引导路中的所述吐水口侧的下游区域的流路面积为所述引导路中的所述贮水部侧的上游区域的流路面积以下。
  4. 根据权利要求1至3中任一项所述的洗衣机，其特征在于，
    所述桶洗净构件具有将所述桶洗净构件的内部空间分隔为多个所述贮水部的分隔件。
  5. 根据权利要求1至4中任一项所述的洗衣机，其特征在于，
    在所述桶洗净构件设有使所述贮水部内的水向所述洗涤桶内落下的供水口。
PCT/CN2022/092732 2021-05-17 2022-05-13 洗衣机 WO2022242567A1 (zh)

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JP2021083479A JP2022176834A (ja) 2021-05-17 2021-05-17 洗濯機
JP2021-083479 2021-05-17

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08299679A (ja) * 1995-04-28 1996-11-19 Matsushita Electric Ind Co Ltd 洗濯機
JP2002011291A (ja) * 2000-06-29 2002-01-15 Hitachi Ltd 電気洗濯機
JP2002011287A (ja) * 2000-06-29 2002-01-15 Hitachi Ltd 電気洗濯機
CN201169701Y (zh) * 2008-03-27 2008-12-24 童正强 洗衣机自洁杀菌装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08299679A (ja) * 1995-04-28 1996-11-19 Matsushita Electric Ind Co Ltd 洗濯機
JP2002011291A (ja) * 2000-06-29 2002-01-15 Hitachi Ltd 電気洗濯機
JP2002011287A (ja) * 2000-06-29 2002-01-15 Hitachi Ltd 電気洗濯機
CN201169701Y (zh) * 2008-03-27 2008-12-24 童正强 洗衣机自洁杀菌装置

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