WO2017041713A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2017041713A1
WO2017041713A1 PCT/CN2016/098311 CN2016098311W WO2017041713A1 WO 2017041713 A1 WO2017041713 A1 WO 2017041713A1 CN 2016098311 W CN2016098311 W CN 2016098311W WO 2017041713 A1 WO2017041713 A1 WO 2017041713A1
Authority
WO
WIPO (PCT)
Prior art keywords
washing
tub
inner tub
rotating
microcomputer
Prior art date
Application number
PCT/CN2016/098311
Other languages
English (en)
French (fr)
Inventor
间宫春夫
川村保
中西隆
佐藤弘树
吉田贤司
Original Assignee
青岛海尔洗衣机有限公司
海尔亚洲株式会社
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 青岛海尔洗衣机有限公司, 海尔亚洲株式会社 filed Critical 青岛海尔洗衣机有限公司
Priority to KR1020187009662A priority Critical patent/KR20180049043A/ko
Priority to CN201680051345.7A priority patent/CN108026685B/zh
Priority to EP16843651.7A priority patent/EP3348693A4/en
Priority to US15/757,592 priority patent/US20180245263A1/en
Publication of WO2017041713A1 publication Critical patent/WO2017041713A1/zh

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Classifications

    • 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
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • 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 
    • D06F23/06—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 an inclined 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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 boom is provided at four corners of a casing in which the water tub is housed, and a water platform is provided at a lower end portion of the boom.
  • a bucket is fixed to the tilting table supported by the tilting fulcrum provided in a manner of being biased toward the front surface of the water platform.
  • the washing tub is disposed in the water tub in a freely rotatable manner, and a pulsator for stirring the laundry and the water in the washing tub is disposed on the inner side of the bottom surface of the washing tub in a freely rotatable manner.
  • the pulsator rotates at a low speed in a state where the washing tub is inclined.
  • Patent Document 1 Japanese Patent No. 4,464,561
  • the present invention has been made in view of the background, and an object thereof is to provide a washing machine capable of improving washing performance in a structure including a washing tub that can be rotated in a manner intersecting with a vertical direction.
  • the present invention is a washing machine comprising: a washing tub having an inner tub and an outer tub, wherein the inner tub is a cylindrical inner tub for accommodating laundry and is rotatable about an axis thereof, the outer tub receiving the inner tub,
  • the washing tub can be rotated in such a manner that the axis intersects with the vertical direction;
  • the stirring member can be rotated so as to Agitating the laundry in the inner tub; rotating a motor to rotate the inner tub and the stirring member; and rotating a mechanism to change an angle of intersection between the vertical direction and the axis by rotating the washing tub; and a control portion
  • the motor and the rotating mechanism are controlled to perform a washing operation of reversing the agitating member or rotating the inner tub with a plurality of the intersections.
  • control unit reverses the agitating member or rotates the inner tub in a state in which the washing tub is rotating in the washing operation.
  • the inner tub of the washing tub can be rotated about its axis, and the stirring member can be rotated to stir the laundry in the inner tub.
  • the motor rotates the inner tub and the stirring member, and the rotating mechanism rotates the washing tub, thereby changing the angle of intersection of the vertical direction and the axis.
  • the control unit reverses the agitating member or rotates the inner tub at a plurality of intersecting angles by controlling the motor and the rotating mechanism.
  • the agitating member By combining the reversal of the agitating member and the rotation of the inner tub, regardless of the value of the intersecting angle, in other words, even if the washing tub is inclined to a certain extent or more with respect to the vertical direction, the agitating member, The mechanical force generated by the inner tub is efficiently transferred to the laundry.
  • the position of the laundry in the inner tub can be promoted alternately, and the washing unevenness of the laundry can be reduced.
  • the mechanical force can be further efficiently transmitted to the laundry, and the washing unevenness can be further reduced.
  • the agitating member is reversed or the inner tub is rotated in a state where the washing tub is rotating in the washing operation.
  • the detergent can be efficiently dissolved in water to form a high-concentration washing water, or the washing water can be efficiently permeated into the laundry. Therefore, further improvement in washing performance can be achieved. Further, by using the time during which the washing tub is rotated to generate washing water or soaking the washing water into the laundry, the time for the washing operation can be shortened.
  • Fig. 1 is a schematic perspective view of a washing machine in accordance with an embodiment of the present invention.
  • Fig. 2 is a schematic longitudinal sectional left side view of the washing machine.
  • Fig. 3 is a block diagram showing the electrical configuration of the washing machine.
  • FIG. 4 is a flow chart showing a control operation of the washing operation.
  • FIG. 5 is a flowchart showing a control operation of the washing operation.
  • Figure 6 is a table summarizing data related to the washing operation.
  • washing machine 1: washing machine; 3: washing tub; 8: rotating mechanism; 10: outer tub; 11: inner tub; 45: stirring member; 46: motor; 48: microcomputer; J: axis; Q: washing; Z: up and down direction ; ⁇ : angle of rotation.
  • FIG. 1 is a schematic perspective view of a washing machine 1 according to an embodiment of the present invention.
  • the vertical direction in FIG. 1 is referred to as the vertical direction Z of the washing machine 1
  • the left-right direction in FIG. 1 is referred to as the front-rear direction Y of the washing machine 1
  • the horizontal direction substantially orthogonal to the paper surface of FIG. 1 is referred to as the left-right direction X.
  • the up and down direction Z is also the vertical direction.
  • the upper side is referred to as the upper side Z1
  • the lower side is referred to as the lower side Z2.
  • the front-rear direction Y the right side in FIG.
  • the front side Y1 is referred to as the front side Y1
  • the left side in FIG. 1 is referred to as the rear side Y2.
  • the front side of the paper surface of FIG. 1 is referred to as the left side X1
  • the back side of the paper surface of FIG. 1 is referred to as the right side X2.
  • the washing machine 1 the washing machine having the dry clothes function is also included.
  • the washing machine 1 will be described below by taking a washing machine in which the washing operation is omitted and the washing operation is performed as an example.
  • the washing operation includes a washing process, a rinsing process, and a dehydration process.
  • the components shown in FIG. 1 of the washing machine 1 include a casing 2, a washing tub 3 disposed in the casing 2, a support frame 4, a boom 5, a rotating portion 6, a lock releasing mechanism 7, and a rotating mechanism 8.
  • the casing 2 is made of, for example, metal, and is formed in a box shape.
  • a joint surface 2C that connects the front surface 2A and the upper surface 2B is provided.
  • the joint surface 2C is, for example, an inclined surface that descends with the front side Y1.
  • the entrance and exit 2D for taking in and taking out the laundry Q (refer to FIG. 2 described later) into the washing machine 1 is formed so as to bridge the front surface 2A and the joint surface 2C.
  • the washing tub 3 has an outer tub 10 and an inner tub 11.
  • the outer tub 10 is made of, for example, a resin, and is formed in a bottomed cylindrical shape.
  • the virtual straight line passing through the center of the outer tub 10 is the axis J of the outer tub 10.
  • the bottomed cylindrical outer tub 10 has a substantially circular shape disposed along the axis J
  • the cylindrical circumferential wall 12 is formed in a disk shape orthogonal to the axis J and blocks the bottom wall 13 of the hollow portion of the circumferential wall 12 from the lower side Z2.
  • a circular opening 10A surrounded by the upper end edge of the circumferential wall 12 is formed at the upper end portion of the washing tub 3 on the side opposite to the bottom wall 13.
  • the opening 10A passes through the laundry Q that has been taken in and taken out of the washing machine 1.
  • metal rotating shafts 14 projecting outward in the left-right direction X are provided one by one. In Fig. 1, only the rotational axis 14 of the left side X1 is illustrated.
  • the pair of right and left rotating shafts 14 are disposed at the same position when viewed from the left-right direction X.
  • the inner tub 11 is made of, for example, metal, and is formed in a bottomed cylindrical shape that is slightly smaller than the outer tub 10.
  • the laundry Q is housed in the inner tub 11.
  • the bottomed cylindrical inner tub 11 has a substantially cylindrical circumferential wall 15 disposed along the axis J and a bottom wall formed in a disk shape orthogonal to the axis J and blocking the hollow portion of the circumferential wall 15 from the lower side Z2. 16 (refer to Figure 2).
  • a circular opening 11A through which the laundry Q taken in and taken out of the inner tub 11 passes is formed.
  • the inner tub 11 is housed coaxially in the outer tub 10.
  • the axis of the inner tub 11 is the above-described axis J.
  • the opening 11A of the inner tub 11 is located inside the opening 10A of the outer tub 10.
  • the opening 11A faces the inlet and outlet 2D of the casing 2, whereby the laundry Q can be taken in and out of the inner tub 11.
  • a plurality of through holes 11B are formed in the circumferential wall 12 and the bottom wall 13 of the inner tub 11, and water in the outer tub 10 passes between the outer tub 10 and the inner tub 11 via the through holes 11B. Therefore, the water level in the outer tub 10 coincides with the water level in the inner tub 11.
  • the support frame 4 is made of metal and includes a pair of left and right side plates 17 and a beam member 18 spanned between the lower end portions of the pair of side plates 17.
  • Each of the side plates 17 is formed in a substantially rectangular shape as viewed in the left-right direction X, and is thinner in the left-right direction X.
  • a washing tub 3 is disposed between the pair of side plates 17.
  • the rotating shaft 14 protruding to the left side X1 penetrates the side plate 17 of the left side X1, and is rotatably supported by the side plate 17 of the left side X1 via a bearing (not shown).
  • a rotating shaft 14 (not shown) that protrudes to the right side X2 penetrates the side plate 17 of the right side X2, and is rotatable by a side plate 17 of the right side X2 via a bearing (not shown).
  • Way support Thereby, the washing tub 3 is supported by the support frame 4, and is rotatable around the rotating shaft 14 so that the outer tub 10 and the axis J of the inner tub 11 intersect the vertical direction Z. Specifically, as the washing tub 3 rotates, the axis J is inclined with respect to the up-and-down direction Z in the front-rear direction Y.
  • the direction of rotation of the washing tub 3 is referred to as a rotational direction K.
  • the angle of intersection of the virtual reference axis L extending in the up-and-down direction Z and the axis J at an acute angle is the angle of rotation ⁇ of the washing tub 3 with respect to the reference axis L.
  • the rotation angle ⁇ can be changed by, for example, five degrees of 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees.
  • the turning angle ⁇ is set to 45 degrees in such a manner as to facilitate the input of the laundry, and then, In the case where the load amount of the laundry Q is detected or the water is supplied to the washing tub 3, the rotation angle ⁇ is set to 5 degrees. Further, in the washing process and the rinsing process, in order to promote the alternate position of the laundry Q in the inner tub 11 to achieve efficient washing and rinsing, the rotation angle ⁇ is set to vary between 5 degrees and 60 degrees.
  • the washing machine 1 capable of changing the rotation angle ⁇ can have the advantages of the so-called vertical washing machine in which the inner tub 11 is erected, and the so-called drum type washing machine in which the inner tub 11 is inclined.
  • an opening 17A penetrating the side plate 17 in the left-right direction X is formed.
  • the opening 17A is formed in a substantially rectangular shape that is long in the front-rear direction Y.
  • a support portion 19 that protrudes outward in the front-rear direction Y is provided at the front end edge and the rear end edge of each of the side plates 17.
  • the support portion 19 may be formed integrally with the side plate 17, or may be attached to the side plate 17 as another member made of, for example, resin.
  • the boom 5 is formed in a rod shape having a friction damper 20 at its lower end.
  • the lower end portion of the boom 5 on the front side Y1 is coupled to the support portion 19 of the front side Y1 of the side panel 17 on the left side X1, and the boom 5 on the rear side Y2 The lower end portion is coupled to the support portion 19 of the rear side Y2 of the side plate 17 of the left side X1.
  • the lower end portion of the boom 5 on the front side Y1 is coupled to the support portion 19 of the front side Y1 of the side panel 17 on the right side X2, and the boom 5 on the rear side Y2 ( The lower end portion (not shown) is coupled to the support portion 19 (not shown) of the rear side Y2 of the side plate 17 of the right side X2.
  • the support frame 4 having the side plates 17 and the washing tub 3 supported by the support frame 4 are elastically supported by the casing 2 via the hangers 5.
  • the rotating portion 6 is thin in the left-right direction X, and is formed to be bulged toward the front side Y1 as viewed from the left-right direction X.
  • the rotating portion 6 has an outer peripheral edge 6A formed in an arc shape along the rotational direction K and bulging toward the front side Y1.
  • a through hole 6B that penetrates the rotating portion 6 in the left-right direction X is formed at a position of the rotating portion 6 that coincides with the center of curvature of the outer peripheral edge 6A.
  • a plurality of recesses 6C are formed, here five.
  • These recessed portions 6C are recessed toward the through holes 6B and penetrate the rotating portion 6 in the left-right direction X, and are arranged side by side in the rotational direction K.
  • the interval between the adjacent recessed portions 6C may be fixed or may vary depending on the position of the rotating portion 6.
  • the rotation angle ⁇ is set to 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees, and the rotating portion 6 in the state of FIG. 1 is located at the last side Y2 and its front neighbor.
  • the two recessed portions 6C at the position are spaced apart by 10 degrees in the rotational direction K, that is, in the circumferential direction centering on the through hole 6B, and the interval between the other adjacent recessed portions 6C is uniformly 15 degrees.
  • the rotating portion 6 is disposed closer to the left side X1 than the side plate 17 of the left side X1.
  • the rotation shaft 14 of the outer tub 10 of the washing tub 3 which protrudes to the left side X1 and penetrates the side plate 17 of the left side X1 is inserted into the through hole 6B of the rotating portion 6, and is fixed to the rotating portion 6. Thereby, the rotating portion 6 is coupled to the washing tub 3 so as to be integrally rotatable via the rotating shaft 14.
  • the rotating portion 6 in the posture of FIG. 1 is integrally provided with the lower side Z2 at the rear end of the outer peripheral edge 6A, and specifically protrudes outward in the radial direction R of the rotating portion 6 around the through hole 6B.
  • the extension unit 6D is formed in a plate shape that is long in the radial direction R and thin in the left-right direction X.
  • a guide hole 6E that is long in the radial direction R and penetrates the extended portion 6D in the left-right direction X is formed. Both ends of the guide hole 6E in the longitudinal direction are in a blocked state.
  • the guide hole 6E is located at the same position as the opening 17A of the side plate 17 of the left side X1 in the up and down direction Z. Regardless of which of the 5 to 60 degrees the rotation angle ⁇ is, the guide hole 6E always faces the opening 17A from the left side X1.
  • the lock release mechanism 7 is fixed to the left side surface of the side plate 17 on the left side X1.
  • the lock release mechanism 7 includes a main body portion 21 and a lock portion 22.
  • An actuator (not shown) including a torque motor or the like is provided in the main body portion 21.
  • the lock portion 22 is formed to protrude from the main body portion 21 toward the rear side Y2, and is strictly convex toward the rear upper side, and is supported by the main body portion 21 so as to be slidable in the front-rear direction Y.
  • the actuator of the main body portion 21 operates to slide the lock portion 22 between the entry position that enters the last side Y2 and the exit position that exits toward the foremost side Y1.
  • the locking portion 22 of Figure 1 is in the entry position.
  • the locking portion 22 is inserted into the entry position, thereby being fitted into the recessed portion 6C at the same position in the rotational direction K.
  • the rotation of the rotating portion 6 and the washing tub 3 The move is locked.
  • the lock portion 22 is retracted to the exit position, since the lock portion 22 is separated from the recess portion 6C, the lock of the rotation portion 6 and the washing tub 3 is released.
  • the locking portion 22 of the entry position is in a state of being embedded in the recess 6C located at the uppermost side Z1 and located at the foremost side Y1.
  • the rotation angle ⁇ is 60 degrees
  • the rotation angle ⁇ becomes smaller as the concave portion 6C in which the lock portion 22 is fitted becomes the other concave portion 6C on the rear side Y2
  • the rotation angle ⁇ is 5 degrees in a state where the locking portion 22 is fitted into the concave portion 6C of the last side Y2.
  • the rotation of the rotating portion 6 and the washing tub 3 is locked in the state.
  • the rotation mechanism 8 is a mechanism that changes the rotation angle ⁇ by rotating the washing tub 3, and includes a frame 25, a pair of support portions 26, a threaded shaft 27, a rotary motor 28, a coupling 29, a nut member 30, and an angle sensor 31. .
  • the frame 25 is formed by bending a metal plate into, for example, a crank shape, and is fixed to the side plate 17 from the right side X2 so as to cover the opening 17A of the side plate 17 of the left side X1 from the right side X2.
  • the pair of support portions 26 are fixed to the frame 25 in a state of being arranged away from each other in the front-rear direction Y, and are in a state of protruding from the frame 25 to the left side X1.
  • the threaded shaft 27 is formed in a columnar shape elongated in the front-rear direction Y, and a spirally extending thread 27A is formed in almost the entire outer peripheral surface thereof.
  • the threaded shaft 27 is rotatably supported by both ends of the bearing 32 provided at the pair of front and rear support portions 26.
  • the rotary motor 28 is an ordinary electric motor and has an output shaft 33 that protrudes toward the rear side Y2 and is coaxially arranged with the screw shaft 27.
  • the front end portion of the threaded shaft 27 and the output shaft 33 are coupled to each other by the coupling 29 so as to be rotatable together. Therefore, when the rotary motor 28 is driven and the output shaft 33 is rotated, the threaded shaft 27 rotates integrally with the output shaft 33.
  • the nut member 30 has an annular nut in which a spirally extending screw (not shown) is formed on the inner peripheral surface, and the screw is externally fitted to the screw so that the screw is screwed to the screw 27A of the screw shaft 27. Axis 27.
  • the nut member 30 When the threaded shaft 27 rotates in accordance with the driving of the rotary motor 28, the nut member 30 as a whole moves along the axial direction of the threaded shaft 27, that is, the front-rear direction Y, as the threaded shaft 27 rotates.
  • the nut member 30 is coupled to the rotating portion 6 via the coupling pin 34 by fixing the coupling pin 34 of the guide hole 6E of the extending portion 6D of the rotating portion 6 . Therefore, when the nut member 30 moves in the front-rear direction Y with the rotation of the threaded shaft 27, the rotating portion 6 is pulled forward and backward by the nut member 30, thereby rotating with the washing tub 3.
  • the angle sensor 31 is a sensor for detecting the rotation angle ⁇ of the washing tub 3 based on the position of the nut member 30 in the front-rear direction Y.
  • an optical sensor such as a photosensor can be used.
  • the angle sensor 31 is provided in the same manner as the number of the recesses 6C of the rotating portion 6, and is fixed to the frame 25 in a state of being aligned along the front-rear direction Y.
  • Each of the angle sensors 31 is formed with a groove 31A that penetrates the angle sensor 31 along the front-rear direction Y, and the angle sensor 31 is in a state where the detection light is transverse to the groove 31A in the vertical direction Z.
  • the nut member 30 is provided with a rod-shaped detected portion 30A called a stopper.
  • the rotation angle ⁇ is any one of 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees
  • the detected portion 30A is fitted into the groove 31A of any one of the angle sensors 31 to block the detection light of the groove 31A. Therefore, the five angle sensors 31 collectively detect which of the 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees the rotation angle ⁇ is.
  • the washing machine 1 includes, in addition to the above-described constituent members, a door 39, a display operation portion 40, a detergent accommodating chamber 41, a water supply path 42, a drain path 43, and a support.
  • the door 39 is formed in a curved plate shape along the joint surface 2C of the casing 2, and opens and closes the entrance 2D of the casing 2.
  • the display operation unit 40 is constituted by a switch, a liquid crystal panel, or the like, and is provided, for example, on the upper surface 2B of the casing 2. The user can turn on/off the power of the washing machine 1 by operating the switch or the like of the display operation unit 40; or freely set the mode of the washing operation; or instruct the washing machine 1 to start or stop the washing operation.
  • the information related to the washing operation is visually displayed on the liquid crystal panel or the like of the display operation unit 40.
  • the detergent storage chamber 41 is formed in a box shape in which detergent is stored, and is disposed on the upper side Z1 of the washing tub 3. As shown in FIG. 2, when the rotational angle ⁇ is 5 degrees, the detergent accommodating chamber 41 is located directly above the opening 11A of the inner tub 11.
  • the water supply path 42 connected to the faucet (not shown) is connected to the detergent accommodating chamber 41 from the upper side Z1 and the rear side Y2.
  • the water from the faucet flows through the water supply path 42 and the detergent storage chamber 41, flows down from the bottom of the detergent storage chamber 41 to the opening 11A, and is supplied into the inner tub 11.
  • the detergent contained in the detergent storage chamber 41 is supplied into the inner tub 11 along the water flowing through the detergent storage chamber 41.
  • the water from the detergent accommodating chamber 41 may flow down in a shower shape as shown by a broken line arrow and be supplied into the inner tub 11.
  • a water supply valve 49 that opens and closes to start or stop the water supply is provided.
  • the drain passage 43 is connected to the bottom wall 13 of the outer tub 10 from the lower side Z2, and the water in the outer tub 10 is discharged from the drain passage 43 to the outside of the machine.
  • a drain valve 50 that opens and closes to start or stop the drain is provided in the middle of the drain passage 43.
  • the drain path 43 has a certain length and flexibility so that the value of the rotation angle ⁇ of the washing tub 3 is not elongated from any of 5 to 60 degrees.
  • a through hole 13A penetrating the bottom wall 13 is formed at a center of the bottom wall 13 of the outer tub 10 at the center line of the outer wall 10, and the center of the bottom wall 16 of the inner tub 11 coincides with the axis J.
  • a through hole 16A penetrating the bottom wall 16 is formed.
  • the support shaft 44 is formed in a tubular shape that surrounds the through hole 16A from the bottom wall 16 and protrudes along the axis J to the lower side Z2. The support shaft 44 is inserted through the through hole 13A of the bottom wall 13, and the lower end portion of the support shaft 44 is located closer to the lower side Z2 than the bottom wall 13.
  • the agitating member 45 is a so-called pulsator, and is formed in a disk shape centered on the axis J, and is disposed concentrically with the inner tub 11 along the bottom wall 16 in the inner tub 11.
  • a plurality of blades 45A radially arranged are provided on the upper surface of the opening 11A of the agitating member 45 facing the inner tub 11 from the lower side Z2.
  • the agitating member 45 is provided with a rotating shaft 51 extending from its center along the axis J to the lower side Z2. The rotating shaft 51 is inserted into the hollow portion of the support shaft 44, and the lower end portion of the rotating shaft 51 is located closer to the lower side Z2 than the bottom wall 13 of the outer tub 10.
  • the motor 46 is constituted by, for example, a variable frequency motor.
  • the motor 46 is disposed on the lower side Z2 of the outer tub 10, and is fixed to the bottom wall 13 of the outer tub 10 via an anchor (not shown) or the like. Therefore, the motor 46 is elastically supported by the casing 2 via the boom 5 together with the washing tub 3 and the support frame 4 (refer to FIG. 1), and is rotated integrally with the washing tub 3 around the rotating shaft 14.
  • Motor 46 has an output shaft 52 that rotates about axis J.
  • the transmission mechanism 47 is interposed between the lower end portion of each of the support shaft 44 and the rotary shaft 51 and the upper end portion of the output shaft 52.
  • the transmission mechanism 47 selectively transmits the driving force output from the output shaft 52 of the motor 46 to one or both of the support shaft 44 and the rotation shaft 51.
  • a known clutch or the like is used as the transmission mechanism 47.
  • the microcomputer 48 includes, for example, a CPU, a memory unit such as an RQM, a RAM, and the like, and is disposed in the casing 2.
  • the washing machine 1 further includes a water level sensor 55, a rotation sensor 56, and an angle sensor 31.
  • the water level sensor 55 and the rotation sensor 56, the angle sensor 31 described above, and the display operation unit 40 are electrically connected to the microcomputer 48, respectively.
  • the water supply valve 49, the motor 46, the drain valve 50, the transmission mechanism 47, the lock release mechanism 7, and the rotary motor 28 of the rotation mechanism 8 are electrically connected to the microcomputer 48 via, for example, the drive circuit 57.
  • the water level sensor 55 is a sensor that detects the water level of the outer tub 10 and the inner tub 11, in other words, detects the amount of water in the inner tub 11, and the detection result of the water level sensor 55 is input to the microcomputer 48 in real time.
  • the rotation sensor 56 is a device that reads the rotation speed of the motor 46, and is strictly a device that reads the rotation speed of the output shaft 52 of the motor 46, and is composed of, for example, a plurality of Hall ICs (not shown).
  • the rotational speed read by the rotation sensor 56 The microcomputer 48 is input in real time.
  • the microcomputer 48 controls the energization/de-energization of the motor 46 in accordance with the input rotational speed, and in detail controls the duty ratio of the voltage applied to the motor 46 to control the motor 46 in such a manner that the motor 46 rotates at a desired rotational speed.
  • the rotational speed of the motor 46 is the same as the rotational speed of each of the inner tub 11 and the agitating member 45.
  • the microcomputer 48 can also control the direction of rotation of the motor 46. Therefore, the motor 46 can be rotated in the forward direction or in the reverse direction.
  • the rotation direction of the output shaft 52 of the motor 46 coincides with the rotation direction of each of the inner tub 11 and the agitating member 45.
  • the inner tub 11 and the agitating member 45 rotate clockwise in the plan view when viewed from the upper side Z1.
  • the motor 46 rotates in the reverse direction, the inner tub 11 and the agitating member 45 rotate counterclockwise in a plan view.
  • the rotation angle ⁇ detected by the angle sensor 31 is input to the microcomputer 48 in real time. As described above, when the user operates the display operation unit 40 to select the operation condition or the like of the washing operation, the microcomputer 48 accepts the selection. The microcomputer 48 displays the necessary information to the user on the display operation unit 40 in a visual manner.
  • the microcomputer 48 controls the transmission mechanism 47 to switch the transmission target of the driving force of the motor 46 to one or both of the support shaft 44 of the inner tub 11 and the rotation shaft 51 of the agitation member 45.
  • the microcomputer 48 controls opening and closing of each of the water supply valve 49 and the drain valve 50. Therefore, the microcomputer 48 can supply water to the inner tub 11 by opening the water supply valve 49 in a state where the drain valve 50 is closed, and draining of the inner tub 11 can be performed by opening the drain valve 50.
  • the microcomputer 48 causes the washing tub 3 to rotate by controlling the driving of the rotating motor 28 of the rotating mechanism 8.
  • the microcomputer 48 controls the actuator (not shown) of the main body portion 21 of the lock release mechanism 7 to slide the lock portion 22 between the entry position and the exit position (see Fig. 1).
  • the microcomputer 48 fixes the rotation angle ⁇ of the washing tub 3 by sliding the locking portion 22 to the entering position, restricts the rotation of the washing tub 3, and allows the rotation of the washing tub 3 by sliding the locking portion 22 from the entering position to
  • the washing operation performed by the microcomputer 48 in the washing machine 1 will be described with reference to the flowcharts of FIGS. 4 and 5.
  • the preparation process is initially performed, washing of the laundry Q is performed during the washing process after the preparation process, washing of the laundry Q is performed during the rinsing process after the washing process, and dehydration of the laundry Q is performed during the dehydrating process.
  • the dehydration process includes a final dehydration process performed at the end of the washing operation and an intermediate dehydration process performed after the washing process and the rinsing process.
  • only tap water may be used, or bath water may be used as needed.
  • the microcomputer 48 issues an instruction to start the washing operation by operating the display operation unit 40 after the user operates the display operation unit 40 to operate the power source (step S1) (step S2).
  • the rotation angle ⁇ of the washing tub 3 of the washing machine 1 in the waiting state is 45 degrees in the present embodiment.
  • the microcomputer 48 quickly rotates the washing tub 3 to change the rotation angle ⁇ to 45 degrees.
  • the opening 11A (see FIG. 2) of the inner tub 11 faces the entrance 2D (see FIG. 2) of the casing 2.
  • the user puts the laundry Q into the inner tub 11 from the entrance and exit 2D.
  • the inner tub 11 and the stirring member 45 are in a stopped state.
  • step S2 when the user sets the mode of the washing operation and issues an instruction to start the washing operation (YES in step S2), the microcomputer 48 turns the rotating mechanism 8 in a state where the inner tub 11 and the stirring member 45 continue to be stopped.
  • the rotary motor 28 is energized until the rotational angle ⁇ is changed from 45 degrees to 5 degrees, whereby the washing tub 3 is erected (step S3).
  • the microcomputer 48 detects the amount of the laundry Q in the inner tub 11 as the load amount (step S4). Specifically, the microcomputer 48 rotates the stirring member 45 at a low speed in a state where the inner tub 11 is stopped. Specifically, the microcomputer 48 reverses the stirring member 45 in such a manner that the forward rotation and the reverse rotation are alternately repeated. The microcomputer 48 stops the driving of the motor 46 after the agitating member 45 is rotated only in the forward direction for a predetermined period of time after the agitating member 45 is rotated only for a predetermined period of time, and immediately measures the inertial rotation amount of the motor 46 immediately after the stop.
  • the inertia rotation amount is, for example, the total number of pulses output by the Hall IC (not shown) of the rotation sensor 56 during the inertia rotation of the motor 46.
  • the larger the load of the laundry Q the smaller the inertial rotation amount of the motor 46 coupled to the agitating member 45 carrying the heavier laundry Q.
  • the smaller the load of the laundry Q the larger the amount of inertial rotation of the motor 46 coupled to the agitating member 45 carrying the lighter laundry Q.
  • the microcomputer 48 detects the amount of load based on the magnitude of the inertia rotation amount.
  • the unit of the load amount is, for example, kg.
  • the amount of load can be accurately detected.
  • the amount of load may be detected by fluctuating the rotation speed of the motor 46 when the inner tub 11 is stably rotated at a low speed.
  • the microcomputer 48 displays the period of the washing operation corresponding to the detected amount of load, the amount of detergent required, and the like on the display operation unit 40. Further, the microcomputer 48 sets the water level of the water stored in the inner tub 11 in the washing process based on the detected load amount (step S5). The relationship between the washing operation period, the required amount of detergent, and the water level and the load amount are set in advance and stored in the memory unit of the microcomputer 48.
  • the microcomputer 48 starts the washing process (step S6).
  • the microcomputer 48 opens the water supply valve 49 to supply water to the inner tub 11.
  • the rotation angle ⁇ continues to be 5 degrees so that the detergent accommodating chamber 41 is located directly above the opening 11A of the inner tub 11, so that water from the faucet (not shown) passes through the water supply passage 42 and the detergent accommodating chamber 41, and the detergent accommodating chamber
  • the detergent in 41 is supplied together from the opening 11A into the inner tub 11 (refer to Fig. 2).
  • the inner tub 11 may be stopped or the inner tub 11 may be rotated, and the agitating member 45 may be stopped or the agitating member 45 may be rotated.
  • the rotation of the agitating member 45 may be reversed as described above, or may be integrally rotated in the same direction as the inner tub 11.
  • the microcomputer 48 closes the water supply valve 49 to end the water supply.
  • the microcomputer 48 After the water supply, the microcomputer 48 reverses the stirring member 45 in a state where the inner tub 11 is stopped (step S7).
  • the microcomputer 48 energizes the rotating motor 28 of the turning mechanism 8 while continuing to reverse the agitating member 45, and rotates the washing tub 3 so as to be inclined toward the front side Y1 from the immediately erect state (step S8).
  • the microcomputer 48 de-energizes the rotary motor 28 (step S10).
  • a predetermined first time has elapsed after the inversion from the agitation member 45 in step S7 (YES in step S11), as shown in Fig.
  • the microcomputer 48 controls the transmission mechanism 47 to motor
  • the transmission target of the driving force of 46 is switched from the stirring member 45 so far to the inner tub 11 (step S12). Thereby, the inner tub 11 is rotated (step S13). This first time is previously set and stored in the memory portion of the microcomputer 48 for each load amount.
  • step S7 the reversal from the agitation member 45 until the lapse of the first time period, the detergent supplied into the inner tub 11 by the water supply is agitated by the flow of water generated in the inner tub 11 as the agitating member 45 is reversed. Thereby, the detergent is dissolved in the water in the inner tub 11, thereby generating wash water.
  • the inner tub 11 is rotated in step S13, and the rotation of the inner tub 11 is continued for only a predetermined second time. This second time is previously set and stored in the memory portion of the microcomputer 48 for each load amount.
  • the washing water is concentrated and saturated with the water flow generated in the inner tub 11 as the inner tub 11 rotates. Go to the laundry Q.
  • the agitating member 45 can be stopped or the agitating member 45 can be rotated.
  • the rotation of the agitating member 45 may be reversed as described above, or may be integrally rotated in the same direction as the inner tub 11.
  • step S14 When the second time has elapsed since the start of the rotation of the inner tub 11 in step S13 (YES in step S14), the microcomputer 48 switches the transfer destination of the driving force of the motor 46 to the agitating member 45 by controlling the transmission mechanism 47. Thereby, the stirring member 45 is reversed (step S15).
  • step S16 When the microcomputer 48 continues to invert the agitating member 45, the rotating motor 28 of the rotating mechanism 8 is energized, and the washing tub 3 is rotated more erect than the present (step S16).
  • step S17 When the rotational angle ⁇ of 45 degrees has reached 15 degrees so far (YES in step S17), the microcomputer 48 de-energizes the rotary electric machine 28 (step S18).
  • step S16 When the rotary motor 28 is energized in step S16, the main washing of the laundry Q in the inner tub 11 is performed by the reversal of the agitating member 45 that continues from step S15.
  • the laundry Q is stirred by contacting the blade 45A of the inverted stirring member 45 or following the flow of water generated in the inner tub 11 by the inverted stirring member 45.
  • the mechanical force such as friction or vibration of the washing material Q during the stirring, the dirt is removed from the laundry Q, whereby the laundry Q is washed. Further, the dirt is chemically decomposed by the detergent contained in the washing water in the inner tub 11, and the laundry Q is also washed.
  • the inner tub 11 can be stopped or rotated. Since the inner tub 11 is also rotated while the agitating member 45 is reversed, a complicated water flow can be generated in the inner tub 11, so that the laundry Q can be efficiently washed by the water flow, and since the laundry Q can be washed with less water, Therefore, water saving can be achieved.
  • the main washing is in a state in which the agitating member 45 continues to be reversed even after the rotating motor 28 is deenergized in step S18.
  • the microcomputer 48 measures the inertial rotation amount of the motor 46 in the same order as the load amount detection in step S4, and detects the state of the laundry Q, that is, the load of the laundry Q after the water absorption based on the inertial rotation amount. the amount.
  • the load amount here is larger than the predetermined load amount, in order to efficiently wash a large amount of laundry Q, the microcomputer 48 increases the number of rotations of the stirring member 45 during the main washing to enhance the water flow.
  • the microcomputer 48 lowers the rotation speed of the stirring member 45 and weakens the water flow. It should be noted that the inner tub 11 is in a stopped state while the state of the laundry Q is being detected.
  • step S20 the microcomputer 48 confirms whether or not the necessary cycle of the washing process has ended.
  • This third time is previously set and stored in the memory portion of the microcomputer 48 for each load amount.
  • the necessary cycle in the present embodiment means, for example, performing two formal washings. Therefore, since the necessary loop has not been completed when only one formal washing is performed (NO in step S20), the microcomputer 48 performs the processing after step S8 again.
  • the microcomputer 48 performs the steps S8 to S11 for the second time in a state where the agitation member 45 is continuously reversed from the step S15, whereby the washing tub 3 is tilted, and the rotational angle ⁇ of 15 degrees up to now reaches 45 degrees. Thereafter, the microcomputer 48 performs steps S12 to S14 for the second time, whereby the inner tub 11 is rotated while the agitating member 45 is stopped. Thereby, in a state where the rotation angle ⁇ is 45 degrees, a water flow is generated in the inner tub 11, and the position of the laundry Q in the inner tub 11 is alternated by the water flow.
  • the microcomputer 48 starts the reversal of the agitating member 45 by performing the second step S15, and by performing the steps S16 to S18 for the second time, the washing tub 3 is erected, and the rotational angle ⁇ of 45 degrees up to now reaches 15 degree. Thereafter, the microcomputer 48 continues to invert the stirring member 45 from the step S15 until the lapse of the third time, thereby performing the second main washing.
  • the period in which the agitating member 45 is reversed in a state where the rotational angle ⁇ is fixed to 15 degrees is defined as the second formal washing, but the present invention is not limited thereto, and may be the same as the first formal washing.
  • the period in which the rotation angle ⁇ is changed from 45 degrees to 15 degrees while the agitation member 45 is reversed is also included in the second main wash.
  • step S21 The washing time is a part of the period of the washing operation set according to the amount of load detected in step S4.
  • the microcomputer 48 can also perform the processing after step S13, thereby performing the third official washing after switching the position of the laundry Q in the inner tub 11 again.
  • the microcomputer 48 causes the washing tub 3 to stand upright in a state where the inner tub 11 and the stirring member 45 are stopped, and the rotation angle ⁇ of 15 degrees up to now reaches 5 Degree (step S22). Thereafter, the microcomputer 48 reverses the stirring member 45 in a state where the inner tub 11 is stopped (step S23). Thereby, since the laundry Q in the inner tub 11 is stirred by the agitation member 45, the laundry Q disposed in the inner tub 11 in a state of being agglomerated, for example, is loosened. solution. Since the washing process ends when the release of the laundry Q is completed, the microcomputer 48 proceeds to the next process, that is, the rinsing process. It should be noted that the microcomputer 48 may first open the drain valve 50 to temporarily discharge the water in the inner tub 11 before the rinsing process starts.
  • the microcomputer 48 controls the motor 46 and the rotating mechanism 8 to invert the agitating member 45 or rotate the inner tub 11 at a plurality of rotational angles ⁇ while performing the washing process of the washing operation. Specifically, referring to FIG. 6, during the period from the first water supply process to the last release process of the washing process, the microcomputer 48 changes the rotation angle ⁇ to various values, and performs the stirring member 45 at each rotation angle ⁇ . The reverse rotation and the rotation of the inner tub 11 or both are performed together.
  • the microcomputer 48 reverses the stirring member 45 in a state where the washing tub 3 is rotating during the washing process. Thereby, the detergent can be efficiently dissolved in water to generate a high concentration of washing water. Further, the microcomputer 48 not only rotates the inner tub 11 in the process of concentration and permeation, but also rotates the inner tub 11 while the washing tub 3 is rotating in the subsequent process of the main washing. Thereby, the washing water can be efficiently permeated into the laundry Q. Therefore, further improvement in washing performance can be achieved. Further, by using the time during which the washing tub 3 is rotated to generate washing water or permeating into the laundry Q, the time for the washing operation can be shortened.
  • the content of the above-described processing in the washing process is only an example, and the value of the rotation angle ⁇ and the combination of the processing can be arbitrarily changed.
  • the combination of the reversal of the agitation member 45 and the rotation of the inner tub 11 during the washing process can also be carried out in the next process, that is, the rinsing process.
  • the microcomputer 48 performs the rinsing process
  • the agitating member 45 is reversed or the inner tub 11 is rotated at a plurality of rotational angles ⁇ .
  • the lock releasing mechanism 7 and the recessed portion 6C of the rotating portion 6 can be omitted. Thereby, the rotation angle ⁇ can be steplessly adjusted.

Abstract

一种洗衣机，其能在包括能以与垂直方向交叉的方式转动的洗涤桶的结构中，实现洗涤性能的提高。洗衣机（1）包括：洗涤桶（3），具有能绕轴线（J）旋转的内桶（11）；搅拌构件（45），能进行旋转以便搅拌内桶（11）内的洗涤物（Q）；电机（46），使内桶（11）以及搅拌构件（45）旋转；转动机构；以及微型计算机（48）。转动机构通过使洗涤桶（3）以轴线（J）与上下方向（Z）交叉的方式转动，从而改变洗涤桶（3）的转动角度（θ）。微型计算机（48）通过控制电机（46）以及转动机构，从而执行以多个转动角度（θ）使搅拌构件（45）反转或使内桶（11）旋转的洗涤运转。

Description

洗衣机 技术领域
本发明涉及洗衣机。
背景技术
在下述专利文献1所述的洗衣机中，在收纳水桶的机壳的四角设置有吊棒，在吊棒的下端部设置有水平台。在自由旋转地由以偏向水平台的前表面的方式设置的倾动支点支承的倾动台，固定有水桶。洗涤桶以自由旋转的方式配置于水桶，在洗涤桶的底面的内侧，以自由旋转的方式配置有搅拌洗涤桶内的洗涤物、水的波轮。在洗衣机的洗涤过程中，在洗涤桶倾斜的状态下波轮低速旋转。
如专利文献1所述的洗衣机那样在洗涤过程中倾斜洗涤桶并仅使波轮旋转的结构中，当洗涤桶倾斜了一定程度以上时，波轮旋转产生的机械力变得难以传递给洗涤桶内的洗涤物。这样一来，由于洗涤物在洗涤桶内的活动变得滞涩，导致脏污难以从洗涤物中去除，因此洗涤性能的提高存在极限。
现有技术文献
专利文献
专利文献1：日本专利第4647561号公报
发明内容
发明所要解决的问题
本发明是基于该背景而完成的发明，其目的在于，提供一种洗衣机，其能在包括能以与垂直方向交叉的方式转动的洗涤桶的结构中，实现洗涤性能的提高。
用于解决问题的方案
本发明是一种洗衣机，包括：洗涤桶，具有内桶和外桶，其中，所述内桶为收容洗涤物的筒状的内桶且能绕其轴线旋转，所述外桶收容所述内桶，所述洗涤桶能以所述轴线与垂直方向交叉的方式转动；搅拌构件，能进行旋转以便 搅拌所述内桶内的洗涤物；电机，使所述内桶以及所述搅拌构件旋转；转动机构，通过使所述洗涤桶转动，从而改变垂直方向与所述轴线的交叉角度；以及控制部，通过控制所述电机以及所述转动机构，从而执行以多个所述交叉使所述搅拌构件反转或使所述内桶旋转的洗涤运转。
此外，本发明的特征在于，在所述洗涤运转中所述洗涤桶正在转动的状态下，所述控制部使所述搅拌构件反转或使所述内桶旋转。
发明效果
根据本发明，在包括能以与垂直方向交叉的方式转动的洗涤桶的洗衣机中，洗涤桶的内桶能绕其轴线旋转，搅拌构件能进行旋转以便搅拌内桶内的洗涤物。洗衣机中，电机使内桶以及搅拌构件旋转，转动机构使洗涤桶转动，由此改变垂直方向与轴线的交叉角度。
在洗衣机的洗涤运转中，通过控制电机以及转动机构，控制部以多个交叉角度使搅拌构件反转或使内桶旋转。这样，通过将搅拌构件的反转和内桶的旋转组合起来，无论交叉角度是哪一个值，换句话说，即使洗涤桶相对于垂直方向倾斜了一定程度以上的情况下，也能将搅拌构件、内桶产生的机械力高效地传递给洗涤物。此外，能促进内桶内的洗涤物的位置交替，减少洗涤物的洗涤不均。进而，通过将以多个交叉角度进行的搅拌构件的反转以及内桶的旋转组合起来，能进一步高效地将机械力传递给洗涤物，能进一步减少洗涤不均。
上述的结果是，能实现洗衣机的洗涤性能的提高。
此外，根据本发明，在洗涤运转中洗涤桶正在转动的状态下，使搅拌构件反转或使内桶旋转。由此，能将洗涤剂高效地溶于水生成高浓度的洗涤水，或使该洗涤水高效地浸透到洗涤物中。因此，能实现洗涤性能的进一步提高。此外，通过利用洗涤桶转动中的时间生成洗涤水或将洗涤水浸透到洗涤物中，能实现洗涤运转的时间缩短。
附图说明
图1是本发明的一实施方式的洗衣机的示意性立体图。
图2是洗衣机的示意性纵截面左视图。
图3是表示洗衣机的电结构的框图。
图4是表示洗涤运转的控制动作的流程图。
图5是表示洗涤运转的控制动作的流程图。
图6是总结洗涤运转的相关数据的表格。
附图标记说明
1：洗衣机；3：洗涤桶；8：转动机构；10：外桶；11：内桶；45：搅拌构件；46：电机；48：微型计算机；J：轴线；Q：洗涤物；Z：上下方向；θ：转动角度。
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是本发明的一实施方式的洗衣机1的示意性立体图。将图1中的上下方向称为洗衣机1的上下方向Z，将图1中的左右方向称为洗衣机1的前后方向Y，将与图1的纸面大致正交的横方向称为左右方向X。上下方向Z也即垂直方向。在上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。前后方向Y当中，将图1中的右侧称为前侧Y1，将图1中的左侧称为后侧Y2。左右方向X当中，将图1的纸面的表侧称为左侧X1，将图1的纸面的里侧称为右侧X2。
在洗衣机1中，虽然也包括具有干衣功能的洗衣干衣机，但是以下，以省略了干衣功能，只执行洗涤运转的洗衣机为例对洗衣机1进行说明。洗涤运转包括洗涤过程、漂洗过程以及脱水过程。洗衣机1在图1中示出的构成部件包括：机壳2、配置于机壳2内的洗涤桶3、支承框架4、吊棒5、转动部6、锁定解除机构7以及转动机构8。
机壳2为例如金属制，形成为箱状。在机壳2，设置有连接前表面2A和上表面2B的连结面2C。连结面2C是例如随着前侧Y1而下降的倾斜面。用于向洗衣机1内投入取出洗涤物Q(参照后述的图2)的出入口2D以跨连前表面2A和连结面2C的方式形成。
洗涤桶3具有外桶10和内桶11。外桶10为例如树脂制，形成为有底圆筒状。在洗涤过程、漂洗过程中，外桶10内蓄有水。通过外桶10的圆心的虚拟的直线是外桶10的轴线J。有底圆筒状的外桶10具有沿着轴线J配置的大致圆 筒状的圆周壁12和形成为与轴线J正交的圆盘状并从下侧Z2堵塞圆周壁12的中空部分的底壁13。在洗涤桶3的与底壁13相反侧的上端部，形成有由圆周壁12的上端缘围成的圆形状的开口10A。开口10A供投入取出洗衣机1内的洗涤物Q通过。在圆周壁12的左右侧面，逐一设置有向左右方向X的外侧突出的金属制的转动轴14。图1中，只图示出左侧X1的转动轴14。这左右一对转动轴14从左右方向X观察时配置于同一位置。
内桶11为例如金属制，形成为比外桶10小一圈的有底圆筒状。洗涤物Q收容于内桶11。有底圆筒状的内桶11具有沿着轴线J配置的大致圆筒状的圆周壁15和形成为与轴线J正交的圆盘状并从下侧Z2堵塞圆周壁15的中空部分的底壁16(参照图2)。在内桶11的与底壁16相反侧的上端部，形成有供投入取出内桶11内的洗涤物Q通过的圆形状的开口11A。内桶11同轴状地收容于外桶10内。因此，内桶11的轴线即上述的轴线J。在内桶11收容于外桶10内的状态下，内桶11的开口11A位于外桶10的开口10A的内侧。开口11A与机壳2的出入口2D对置，由此，能向内桶11内投入取出洗涤物Q。在内桶11的圆周壁12以及底壁13，形成有多个贯通孔11B，外桶10内的水经由这些贯通孔11B，往来于外桶10与内桶11之间。因此，外桶10内的水位与内桶11内的水位一致。
支承框架4为金属制，包括左右一对侧板17和架设于这一对侧板17的下端部之间的梁构件18。各侧板17从左右方向X观察形成为大致矩形，左右方向X上较薄。在一对侧板17之间配置有洗涤桶3。
对于洗涤桶3的外桶10而言，向左侧X1突出的转动轴14贯通左侧X1的侧板17，并经由轴承(未图示)由左侧X1的侧板17以能转动的方式支承。对于外桶10而言，向右侧X2突出的转动轴14(未图示)贯通右侧X2的侧板17，并经由轴承(未图示)由右侧X2的侧板17以能转动的方式支承。由此，洗涤桶3由支承框架4支承，并能以外桶10以及内桶11的轴线J与上下方向Z交叉的方式绕转动轴14转动。具体地说，随着洗涤桶3的转动，轴线J相对于上下方向Z向前后方向Y倾斜。洗涤桶3的转动方向称为转动方向K。
沿着上下方向Z延伸的虚拟基准轴L与轴线J的呈锐角的交叉角度为洗涤桶3相对于基准轴L的转动角度θ。转动角度θ越小，洗涤桶3越接近直立姿势， 转动角度θ越大，洗涤桶3越是以外桶10的开口10A以及内桶11的开口11A朝向前侧Y1的方式，呈向前侧Y1倾斜的姿势。转动角度θ能以例如5度、15度、30度、45度、60度这五挡进行变更。
作为在洗衣机1中的应用的一个例子，当在洗涤运转开始时将洗涤物Q投入洗涤桶3时，以使洗涤物的投入变得容易的方式将转动角度θ设定为45度，然后，在检测洗涤物Q的负荷量或对洗涤桶3进行供水的情况下，转动角度θ设定为5度。并且，在洗涤过程、漂洗过程中，为了促进内桶11内的洗涤物Q的位置交替以实现高效的洗涤、漂洗，将转动角度θ设定为在5度和60度之间变动。此外，在脱水过程中，由于通过将转动角度θ设定为5度从而内桶11在洗涤桶3几乎直立的状态下高速旋转，因此与转动角度θ为例如60度的情况相比，能将随着内桶11的高速旋转而产生的振动抑制得较小。这样，能改变转动角度θ的洗衣机1能兼具内桶11直立配置即所谓的立式洗衣机的优点和内桶11倾斜配置即所谓的滚筒式洗衣机的优点。
在左侧X1的侧板17的比转动轴14更靠近下侧Z2的区域，形成有沿着左右方向X贯通该侧板17的开口17A。开口17A形成为在前后方向Y上长的大致长方形。在各个侧板17的前端缘以及后端缘，设置有向前后方向Y的外侧突出的支承部19。支承部19既可以形成为与侧板17一体，也可以作为例如树脂制的其他构件安装于侧板17。
吊棒5形成为下端部具有摩擦阻尼器20的棒状。吊棒5存在四根，在机壳2内逐一配置于从上侧Z1观察俯视时的四角。这些吊棒5处于机壳2的上部，详细地说处于从构成机壳2的一部分的金属制外框(未图示)悬吊的状态。在左侧X1前后排列的两根吊棒5当中，前侧Y1的吊棒5的下端部与左侧X1的侧板17的前侧Y1的支承部19连结，后侧Y2的吊棒5的下端部与左侧X1的侧板17的后侧Y2的支承部19连结。在右侧X2前后排列的两根吊棒5当中，前侧Y1的吊棒5的下端部与右侧X2的侧板17的前侧Y1的支承部19连结，后侧Y2的吊棒5(未图示)的下端部与右侧X2的侧板17的后侧Y2的支承部19(未图示)连结。由此，具有侧板17的支承框架4以及由支承框架4支承的洗涤桶3经由吊棒5，由机壳2弹性支承。
转动部6是左右方向X上薄，从左右方向X观察形成为向前侧Y1膨出的 大致扇状的金属制的板。转动部6具有形成为沿着转动方向K的圆弧状并向前侧Y1膨出的外周缘6A。在转动部6的与外周缘6A的曲率中心一致的位置，形成有沿着左右方向X贯通转动部6的贯通孔6B。在外周缘6A，形成有多个凹部6C，此处为五个。这些凹部6C向贯通孔6B凹陷并且沿着左右方向X贯通转动部6，并沿着转动方向K排列配置。相邻凹部6C的间隔既可以固定，也可以因转动部6的位置而异。在本实施方式中，与转动角度θ设定为5度、15度、30度、45度、60度相对应，在图1中的状态下的转动部6，位于最后侧Y2及其前邻位置的两个凹部6C在转动方向K即以贯通孔6B为中心的圆周方向上间隔10度，其他的相邻凹部6C之间的间隔一律为15度。
转动部6配置为比左侧X1的侧板17更靠近左侧X1。洗涤桶3的外桶10的向左侧X1突出并贯通左侧X1的侧板17的转动轴14插通转动部6的贯通孔6B，固定于转动部6。由此，转动部6经由转动轴14，以能一体转动的方式连结于洗涤桶3。
在图1的姿势下的转动部6，在外周缘6A的后端，一体地设置有往下侧Z2突出，具体而言往以贯通孔6B为中心的转动部6的径向R的外侧突出的延设部6D。延设部6D形成为径向R上长、左右方向X上薄的板状。在延设部6D，形成有径向R上长且沿着左右方向X贯通延设部6D的引导孔6E。引导孔6E的长边方向的两端处于堵塞状态。引导孔6E在上下方向Z上与左侧X1的侧板17的开口17A位于同一位置。无论转动角度θ为5度～60度中的哪个值，引导孔6E都始终从左侧X1与开口17A对置。
锁定解除机构7固定于左侧X1的侧板17的左侧面。锁定解除机构7包括主体部21和锁定部22。在主体部21，设置有由转矩电机等构成的促动器(未图示)。锁定部22形成为从主体部21向后侧Y2突出，严格来说向后上侧突出的凸状，由主体部21以能向前后方向Y滑动的方式支承。主体部21的促动器工作，从而使锁定部22在向最后侧Y2进入的进入位置与向最前侧Y1退出的退出位置之间滑动。
图1的锁定部22位于进入位置。在转动部6的任意一个凹部6C与锁定部22在转动方向K上位于同一位置的情况下，锁定部22通过进入到进入位置，从而嵌入转动方向K上同一位置的凹部6C。由此，转动部6以及洗涤桶3的转 动被锁定。在该状态下，当锁定部22退到退出位置时，由于锁定部22离开凹部6C，因此转动部6以及洗涤桶3的锁定被解除。
在图1中，进入位置的锁定部22处于嵌入位于最上侧Z1并且位于最前侧Y1的凹部6C的状态。此时，在转动角度θ为60度的状态下，转动部6以及洗涤桶3的转动被锁定。随着锁定部22所嵌入的凹部6C变成位于后侧Y2的其它凹部6C，转动角度θ变小，在锁定部22嵌入最后侧Y2的凹部6C的状态下，转动角度θ为5度，该状态下转动部6以及洗涤桶3的转动被锁定。
转动机构8是通过使洗涤桶3转动从而改变转动角度θ的机构，包括：框架25、一对支承部26、螺纹轴27、转动电机28、联轴器29、螺母构件30、以及角度传感器31。
框架25通过将金属板折曲为例如曲柄状而形成，以从右侧X2覆盖左侧X1的侧板17的开口17A的方式，从右侧X2固定于该侧板17。一对支承部26以沿着前后方向Y远离排列的状态固定于框架25，并处于从框架25向左侧X1突出的状态。螺纹轴27形成为沿着前后方向Y细长地延伸的圆柱状，在其外周面的几乎整个区域，形成有螺旋状延伸的螺牙27A。螺纹轴27以能旋转的方式，由设置于前后一对支承部26的轴承32两端支承。
转动电机28是普通的电动电机，具有向后侧Y2突出并与螺纹轴27同轴状配置的输出轴33。螺纹轴27的前端部和输出轴33通过联轴器29以能一体旋转的方式连结。因此，当转动电机28被驱动，输出轴33进行旋转时，螺纹轴27与输出轴33一体旋转。螺母构件30具有在内周面形成有螺旋状延伸的螺牙(未图示)的环状的螺母，并以该螺牙与螺纹轴27的螺牙27A相互螺纹连接的方式，外嵌于螺纹轴27。当螺纹轴27随着转动电机28的驱动而旋转时，随着螺纹轴27的旋转，螺母构件30整体沿着螺纹轴27的轴向即前后方向Y移动。螺母构件30通过固定插入转动部6的延设部6D的引导孔6E的连结销34，从而经由连结销34与转动部6连结。因此，当螺母构件30随着螺纹轴27的旋转沿着前后方向Y进行移动时，转动部6通过螺母构件30被拉向前后方向Y，从而随着洗涤桶3转动。
角度传感器31是用于根据前后方向Y的螺母构件30的位置检测洗涤桶3的转动角度θ的传感器，作为角度传感器31，能使用光传感器等光学传感器。 在这种情况下，角度传感器31设置为与转动部6的凹部6C的数量相同，以沿着前后方向Y排列的状态固定于框架25。在各个角度传感器31，形成有沿着前后方向Y贯通角度传感器31的槽31A，角度传感器31处于检测光沿着上下方向Z横切槽31A的状态。在螺母构件30，设置有被称为限位部的杆状的被检测部30A。当转动角度θ为5度、15度、30度、45度、60度中的任一个角度时，被检测部30A嵌入任一个角度传感器31的槽31A，遮挡该槽31A的检测光。因此，五个角度传感器31统一检测转动角度θ是5度、15度、30度、45度、60度中的哪一个角度。
参照洗衣机1的示意性的纵截面左视图即图2，洗衣机1除了上述的构成部件之外，还包括门39、显示操作部40、洗涤剂收容室41、供水路42、排水路43、支承轴44、搅拌构件45、电机46、传递机构47、以及作为控制部的微型计算机48。
门39沿着机壳2的连结面2C形成为弯曲的板状，开闭机壳2的出入口2D。显示操作部40由开关、液晶面板等构成，并设置于例如机壳2的上表面2B。使用者通过操作显示操作部40的开关等，能将洗衣机1的电源接通/切断；或自由地设定洗涤运转的模式；或对洗衣机1发出开始、停止洗涤运转等指示。在显示操作部40的液晶面板等，以可目视的方式显示洗涤运转的相关信息。
洗涤剂收容室41形成为收容洗涤剂的箱状，配置于洗涤桶3的上侧Z1。如图2所示，当转动角度θ为5度时，洗涤剂收容室41位于内桶11的开口11A的正上方。与水龙头(未图示)连接的供水路42从上侧Z1并且后侧Y2与洗涤剂收容室41连接。来自水龙头的水流过供水路42以及洗涤剂收容室41，从洗涤剂收容室41的底部向开口11A流下，被供给到内桶11内。收容于洗涤剂收容室41的洗涤剂顺着流过洗涤剂收容室41的水被供给到内桶11内。来自洗涤剂收容室41的水可以如虚线箭头所示，呈花洒状流下并被供给到内桶11内。在供水路42的中途，设有为了开始或停止供水而进行开闭的供水阀49。
排水路43从下侧Z2与外桶10的底壁13连接，外桶10内的水从排水路43排出机外。在排水路43的中途，设有为了开始或停止排水而进行开闭的排水阀50。排水路43以无论洗涤桶3的转动角度θ为5度～60度中的哪一个值都不会被拉长的方式，具有一定程度的长度和挠性。
与支承轴44关联地，在外桶10的底壁13的与轴线J一致的圆心位置，形成有贯通底壁13的贯通孔13A，在内桶11的底壁16的与轴线J一致的圆心位置，形成有贯通底壁16的贯通孔16A。支承轴44形成为从底壁16包围贯通孔16A并且沿着轴线J向下侧Z2伸出的管状。支承轴44插通底壁13的贯通孔13A，支承轴44的下端部位于比底壁13更靠近下侧Z2。
搅拌构件45就是所谓的波轮，形成为以轴线J为圆心的圆盘状，在内桶11内沿着底壁16与内桶11同心状地配置。在搅拌构件45的从下侧Z2面对内桶11的开口11A的上表面，设置有放射状配置的多个叶片45A。在搅拌构件45，设置有从其圆心沿着轴线J向下侧Z2延伸的旋转轴51。旋转轴51插通支承轴44的中空部分，旋转轴51的下端部位于比外桶10的底壁13更靠近下侧Z2。
电机46由例如变频电机构成。在机壳2内，电机46配置于外桶10的下侧Z2，经由锚栓(未图示)等固定于外桶10的底壁13。因此，电机46与洗涤桶3以及支承框架4(参照图1)一起经由吊棒5由机壳2弹性支承，与洗涤桶3一体地绕转动轴14转动。电机46具有绕轴线J旋转的输出轴52。传递机构47夹在支承轴44以及旋转轴51各自的下端部与输出轴52的上端部之间。传递机构47将电机46从输出轴52输出的驱动力选择地传递给支承轴44以及旋转轴51的一方或双方。使用公知的离合器等作为传递机构47。当来自电机46的驱动力传递至支承轴44以及旋转轴51时，内桶11以及搅拌构件45绕轴线J进行旋转。
微型计算机例如48包括CPU和RQM、RAM等存储器部，并配置于机壳2内。参照表示洗衣机1的电结构的框图即图3，洗衣机1还包括水位传感器55、旋转传感器56、以及角度传感器31。水位传感器55以及旋转传感器56和上述的角度传感器31以及显示操作部40分别与微型计算机48电连接。供水阀49、电机46、排水阀50、传递机构47、锁定解除机构7以及转动机构8的转动电机28分别通过经由例如驱动电路57，与微型计算机48电连接。
水位传感器55是检测外桶10以及内桶11的水位，换言之检测内桶11内的水量的传感器，水位传感器55的检测结果实时输入微型计算机48。
旋转传感器56是读取电机46的转速，严格来说是读取电机46的输出轴52的转速的装置，例如由多个霍尔IC(未图示)构成。旋转传感器56读取的转速 实时输入微型计算机48。微型计算机48根据输入的转速，控制电机46的通电/断电，详细地说控制施加给电机46的电压的占空比，以使电机46以所希望的转速旋转的方式控制电机46。在本实施方式中，电机46的转速与内桶11以及搅拌构件45各自的转速相同。此外，微型计算机48还能控制电机46的旋转方向。因此，电机46能正向旋转或逆向旋转。在本实施方式中，电机46的输出轴52的旋转方向与内桶11以及搅拌构件45各自的旋转方向一致。例如，当电机46正向旋转时，从上侧Z1观察俯视时内桶11以及搅拌构件45顺时针正向旋转，当电机46逆向旋转时，俯视时内桶11以及搅拌构件45逆时针逆向旋转。
角度传感器31检测到的转动角度θ实时输入微型计算机48。如上所述，当使用者操作显示操作部40对洗涤运转的运转条件等进行选择时，微型计算机48接受该选择。微型计算机48将必要信息以可目视的方式在显示操作部40上显示给使用者。
微型计算机48通过控制传递机构47，将电机46的驱动力的传递目标切换为内桶11的支承轴44以及搅拌构件45的旋转轴51的一方或双方。微型计算机48控制供水阀49以及排水阀50各自的开闭。因此，微型计算机48在关闭了排水阀50的状态下通过打开供水阀49能对内桶11供水，通过打开排水阀50能执行内桶11的排水。微型计算机48通过控制转动机构8的转动电机28的驱动使得洗涤桶3转动。微型计算机48通过控制锁定解除机构7的主体部21的促动器(未图示)，使锁定部22在进入位置与退出位置之间滑动(参照图1)。微型计算机48通过使锁定部22滑动到进入位置，固定洗涤桶3的转动角度θ，限制洗涤桶3的转动，通过使锁定部22从进入位置滑动到退出位置，允许洗涤桶3的转动。
接着，参照图4以及图5的流程图，对洗衣机1中微型计算机48所执行的洗涤运转进行说明。在洗涤运转中，最初进行准备过程，在准备过程之后的洗涤过程中进行洗涤物Q的洗涤，在洗涤过程之后的漂洗过程中进行洗涤物Q的漂洗，在脱水过程中进行洗涤物Q的脱水。脱水过程包括在洗涤运转的最后执行的最终脱水过程和在洗涤过程、漂洗过程之后执行的中间脱水过程。需要说明的是，在洗涤运转中，既可以只使用自来水，也可以根据需要使用洗澡水。
在图6的表格中，汇总显示了在洗涤运转的各过程中实施的处理的内容、 各处理时内桶11以及搅拌构件45的状态、以及各处理时转动角度θ的值。在对以下内容进行说明时，也一并参照图6。
参照图4，微型计算机48根据使用者通过操作显示操作部40使得电源通电的情况(步骤S1)，监视之后使用者是否通过操作显示操作部40发出了开始洗涤运转的指示(步骤S2)。需要说明的是，等待状态的洗衣机1的洗涤桶3的转动角度θ在本实施方式中为45度。只要电源通电时转动角度θ不是45度，微型计算机48就迅速使洗涤桶3转动，将转动角度θ变更为45度。在转动角度θ为45度的状态下，内桶11的开口11A(参照图2)与机壳2的出入口2D(参照图2)对置。在该状态下，作为准备过程的准备阶段，使用者将洗涤物Q从出入口2D投入内桶11内。投入洗涤物Q时，内桶11以及搅拌构件45处于停止状态。
之后，当使用者设定洗涤运转的模式，发出开始洗涤运转的指示时(步骤S2中为“是”)，微型计算机48在内桶11以及搅拌构件45继续停止的状态下，将转动机构8的转动电机28通电，直到转动角度θ从45度变为5度，由此使洗涤桶3直立(步骤S3)。
接着，微型计算机48检测内桶11内的洗涤物Q的量作为负荷量(步骤S4)。具体地说，微型计算机48在内桶11停止的状态下，使搅拌构件45低速旋转。详细而言，微型计算机48使搅拌构件45以反复交替进行正向旋转和逆向旋转的方式反转。微型计算机48在使搅拌构件45只正向旋转规定时间之后、使搅拌构件45只逆向旋转规定时间之后使电机46的驱动停止，并在停止后立即测定电机46的惯性旋转量。惯性旋转量是例如在电机46惯性旋转期间旋转传感器56的霍尔IC(未图示)输出的脉冲总数。洗涤物Q的负荷量越大，与承载了较重的洗涤物Q的搅拌构件45连结的电机46的惯性旋转量越小。洗涤物Q的负荷量越小，与承载了较轻的洗涤物Q的搅拌构件45连结的电机46的惯性旋转量越大。微型计算机48根据惯性旋转量的大小检测负荷量。负荷量的单位为例如kg。由于在使转动角度θ为5度从而使洗涤桶3直立的状态下，内桶11内的洗涤物Q高效地承载于搅拌构件45，因此能正确地检测负荷量。需要说明的是，也可以代替使用惯性旋转量，通过使内桶11以低速稳定旋转时的电机46的转速波动来检测负荷量。
微型计算机48将与检测到的负荷量对应的洗涤运转的期间、所需的洗涤剂的量等显示于显示操作部40。此外，微型计算机48根据检测到的负荷量设定洗涤过程中蓄于内桶11的水的水位(步骤S5)。洗涤运转的期间、所需的洗涤剂的量以及水位各自与负荷量的关系预先设定并存储于微型计算机48的存储器部。
由于当步骤S5的水位的设定结束时则准备过程结束，因此微型计算机48开始进行洗涤过程(步骤S6)。作为洗涤过程的最初的处理，微型计算机48打开供水阀49向内桶11供水。转动角度θ继续为5度使得洗涤剂收容室41位于内桶11的开口11A的正上方，因此来自水龙头(未图示)的水穿过供水路42以及洗涤剂收容室41，与洗涤剂收容室41内的洗涤剂一起从开口11A供到内桶11内(参照图2)。在供水过程中，既可以使内桶11停止也可以使内桶11旋转，既可以使搅拌构件45停止也可以搅拌构件45旋转。这里的搅拌构件45的旋转既可以是上述的反转，也可以是与内桶11同向的一体旋转。当水在内桶11蓄到步骤S5中设定的水位时，微型计算机48关闭供水阀49结束供水。
供水后，微型计算机48在使内桶11停止的状态下使搅拌构件45反转(步骤S7)。微型计算机48在继续反转搅拌构件45的状态下，使转动机构8的转动电机28通电，使洗涤桶3以比刚才的直立状态更向前侧Y1倾斜的方式转动(步骤S8)。当通过洗涤桶3的转动，目前为止为5度的转动角度θ达到45度时(步骤S9中为“是”)，微型计算机48使转动电机28断电(步骤S10)。并且，当在步骤S7中从搅拌构件45开始反转后经过了规定的第一时间时(步骤S11中为“是”)，如图5所示，微型计算机48通过控制传递机构47，将电机46的驱动力的传递目标从目前为止的搅拌构件45切换为内桶11(步骤S12)。由此，内桶11进行旋转(步骤S13)。该第一时间按每个负荷量预先设定并存储于微型计算机48的存储器部。
在步骤S7中从搅拌构件45开始反转直到经过了第一时间的期间，通过供水供给到内桶11内的洗涤剂被随着搅拌构件45的反转在内桶11内产生的水流搅拌。由此，洗涤剂溶于内桶11内的水，从而生成洗涤水。在这样的洗涤剂溶解处理之后，在步骤S13中内桶11进行旋转，内桶11的旋转只持续规定的第二时间。该第二时间按每个负荷量预先设定并存储于微型计算机48的存储器部。在第二时间，洗涤水被随着内桶11的旋转在内桶11内产生的水流浓缩并浸透 到洗涤物Q中。在第二时间，既可以使搅拌构件45停止也可以使搅拌构件45旋转。这里的搅拌构件45的旋转既可以是上述的反转，也可以是与内桶11同向的一体旋转。
当在步骤S13中从内桶11开始旋转后经过了第二时间时(步骤S14中为“是”)，微型计算机48通过控制传递机构47，将电机46的驱动力的传递目标切换为搅拌构件45，从而使搅拌构件45反转(步骤S15)。微型计算机48继续反转搅拌构件45的状态下，使转动机构8的转动电机28通电，使洗涤桶3以比目前为止更加直立的方式转动(步骤S16)。当目前为止为45度的转动角度θ达到15度时(步骤S17中为“是”)，微型计算机48使转动电机28断电(步骤S18)。
当在步骤S16中转动电机28通电时，通过从步骤S15开始持续的搅拌构件45的反转，实施内桶11内的洗涤物Q的正式洗涤。在正式洗涤中，洗涤物Q通过与反转的搅拌构件45的叶片45A接触或顺着反转的搅拌构件45在内桶11内产生的水流，从而被搅拌。通过搅拌时水流对洗涤物Q的摩擦、振动等机械力，脏污从洗涤物Q中被去除，由此洗涤物Q得到清洗。此外，通过内桶11内的洗涤水中所含的洗涤剂将脏污化学分解，由此洗涤物Q也得到清洗。
正式洗涤时，内桶11既可以停止也可以旋转。由于在搅拌构件45反转的同时内桶11也旋转时，能在内桶11内产生复杂的水流，因此通过该水流能高效地清洗洗涤物Q，而且由于能以较少的水清洗洗涤物Q，因此能实现节水。
此外，正式洗涤在步骤S18中处于即使在转动电机28断电之后，搅拌构件45也会继续反转的状态。在该状态下，微型计算机48例如以与步骤S4中的负荷量检测相同的顺序测定电机46的惯性旋转量，并根据该惯性旋转量检测洗涤物Q的状态即吸水后的洗涤物Q的负荷量。当此处的负荷量大到规定负荷量以上时，为了能高效地清洗大量的洗涤物Q，微型计算机48在正式洗涤中提高搅拌构件45的转速，加强水流。当此处的负荷量小于规定负荷量时，现状的水流的强度超出所需，因此为了防止水溅到内桶11的周围，微型计算机48降低搅拌构件45的转速，减弱水流。需要说明的是，在检测洗涤物Q的状态的期间，内桶11处于停止状态。
然后，当在步骤S15中从搅拌构件45开始反转后经过了规定的第三时间时 (步骤S19中为“是”)，微型计算机48确认洗涤过程的必要循环是否已结束(步骤S20)。该第三时间按每个负荷量预先设定并存储于微型计算机48的存储器部。本实施方式中的必要循环是指例如实施两次正式洗涤。因此，由于当只实施了一次正式洗涤时，必要循环尚未结束(步骤S20中为“否”)，因此微型计算机48再次实施步骤S8之后的处理。
微型计算机48在从步骤S15开始持续反转搅拌构件45的状态下，第二次实施步骤S8～S11，由此使洗涤桶3倾斜，直到目前为止为15度的转动角度θ达到45度。之后，微型计算机48第二次实施步骤S12～S14，由此在搅拌构件45停止的状态下使内桶11旋转。由此，在转动角度θ为45度的状态下，在内桶11内产生水流，并通过该水流使内桶11内的洗涤物Q的位置被交替。
之后，微型计算机48通过第二次实施步骤S15从而开始搅拌构件45的反转，并通过第二次实施步骤S16～S18，使洗涤桶3直立，直到目前为止为45度的转动角度θ达到15度。之后，微型计算机48从步骤S15开始持续反转搅拌构件45直到经过了第三时间，由此实施第二次正式洗涤。在这种情况下，搅拌构件45在转动角度θ固定为15度的状态下进行反转的期间被定义为第二次正式洗涤，但并不局限于此，也可以和第一次正式洗涤一样，将一边使搅拌构件45反转一边使转动角度θ从45度变化到15度的期间也包含在第二次正式洗涤中。
由于当第二次正式洗涤开始并经过了第三时间时(步骤S19中为“是”)，必要循环已结束(步骤S20中为“是”)，因此微型计算机48确认是否经过了为本次洗涤过程设定的洗涤时间(步骤S21)。洗涤时间是根据步骤S4中检测到的负荷量设定的洗涤运转的期间的一部分。当尚未经过洗涤时间时(步骤S21中为“否”)，微型计算机48也可以执行步骤S13之后的处理，由此在再次切换内桶11内的洗涤物Q的位置之后实施第三次正式洗涤。
当经过了洗涤时间时(步骤S21中为“是”)，微型计算机48在内桶11以及搅拌构件45都停止的状态下，使洗涤桶3直立，直到目前为止为15度的转动角度θ达到5度(步骤S22)。之后，微型计算机48在内桶11停止的状态下使搅拌构件45反转(步骤S23)。由此，由于内桶11内的洗涤物Q被搅拌构件45搅拌，因此例如以成团的状态偏倚地配置于内桶11内的洗涤物Q被松 解。由于当洗涤物Q的松解结束时则洗涤过程结束，因此微型计算机48继续执行下一个过程即漂洗过程。需要说明的是，在漂洗过程开始之前，微型计算机48也可以先打开排水阀50，将内桶11内的水暂时排出。
如此，微型计算机48在执行洗涤运转的洗涤过程时，通过控制电机46以及转动机构8，从而以多个转动角度θ使搅拌构件45反转或使内桶11旋转。具体而言，参照图6，在从洗涤过程的最初的供水处理到最后的松解处理的期间，微型计算机48将转动角度θ变更为各种值，并以各个转动角度θ实施搅拌构件45的反转以及内桶11的旋转的一方或一同实施两方。
通过像这样讲搅拌构件45的反转和内桶11的旋转组合起来，无论转动角度θ是哪一个值，换句话说，即使在洗涤桶3相对于基准轴L倾斜了一定程度以上的情况下，也能将搅拌构件45、内桶11产生的机械力高效地传递给洗涤物Q。此外，能促进内桶11内的洗涤物Q的位置交替，减少洗涤物Q的洗涤不均。进而，通过将以多个转动角度θ进行的搅拌构件45的反转以及内桶11的旋转组合起来，能进一步高效地将机械力传递给洗涤物Q，能进一步减少洗涤不均。以上的结果是，能实现洗衣机1的洗涤性能的提高。
此外，像上述的洗涤剂溶解处理那样，微型计算机48在洗涤过程中洗涤桶3正在转动的状态下，使搅拌构件45反转。由此，能将洗涤剂高效地溶于水，生成高浓度的洗涤水。此外，微型计算机48不仅在浓缩以及浸透的处理中使内桶11旋转，还可以在之后的正式洗涤的处理中，在洗涤桶3正在转动的状态下使内桶11旋转。由此，能使洗涤水高效地浸透到洗涤物Q中。因此，能实现洗涤性能的进一步提高。此外，通过利用洗涤桶3转动中的时间生成洗涤水或浸透到洗涤物Q中，还能实现洗涤运转的时间缩短。
本发明不局限于以上所说明的实施方式，可以在权利要求书记载的范围内进行各种变更。
例如，洗涤过程中的上述处理的内容只是一个例子，转动角度θ的值、处理的组合能任意变更。
此外，洗涤过程中搅拌构件45的反转和内桶11的旋转的组合也可以在下一个过程即漂洗过程中实施。在这种情况下，微型计算机48在执行漂洗过程时， 通过控制电机46以及转动机构8，以多个转动角度θ使搅拌构件45反转或使内桶11旋转。
此外，只要能在转动电机28的驱动停止时限制洗涤桶3的转动，也可以省略锁定解除机构7、转动部6的凹部6C。由此，能对转动角度θ进行无级调整。

Claims (2)

  1. 一种洗衣机，包括：
    洗涤桶，具有内桶和外桶，其中，所述内桶为收容洗涤物的筒状的内桶且能绕其轴线旋转，所述外桶收容所述内桶，所述洗涤桶能以所述轴线与垂直方向交叉的方式转动；
    搅拌构件，能进行旋转以便搅拌所述内桶内的洗涤物；
    电机，使所述内桶以及所述搅拌构件旋转；
    转动机构，通过使所述洗涤桶转动，从而改变垂直方向与所述轴线的交叉角度；以及
    控制部，通过控制所述电机以及所述转动机构，从而执行以多个所述交叉角度使所述搅拌构件反转或使所述内桶旋转的洗涤运转。
  2. 根据权利要求1所述的洗衣机，其中，
    在所述洗涤运转中所述洗涤桶正在转动的状态下，所述控制部使所述搅拌构件反转或使所述内桶旋转。
PCT/CN2016/098311 2015-09-07 2016-09-07 洗衣机 WO2017041713A1 (zh)

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KR1020187009662A KR20180049043A (ko) 2015-09-07 2016-09-07 세탁기
CN201680051345.7A CN108026685B (zh) 2015-09-07 2016-09-07 洗衣机
EP16843651.7A EP3348693A4 (en) 2015-09-07 2016-09-07 WASHING MACHINE
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JP7469964B2 (ja) * 2020-06-17 2024-04-17 東芝ライフスタイル株式会社 洗濯機

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CN108026685A (zh) 2018-05-11
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EP3348693A4 (en) 2019-04-17
JP2017051266A (ja) 2017-03-16
CN108026685B (zh) 2020-05-12
KR20180049043A (ko) 2018-05-10
US20180245263A1 (en) 2018-08-30

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