WO2015005752A1 - Dispositif d'entraînement de machine à laver, machine à laver comportant celui-ci, et procédé de commande pour celui-ci - Google Patents

Dispositif d'entraînement de machine à laver, machine à laver comportant celui-ci, et procédé de commande pour celui-ci Download PDF

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Publication number
WO2015005752A1
WO2015005752A1 PCT/KR2014/006336 KR2014006336W WO2015005752A1 WO 2015005752 A1 WO2015005752 A1 WO 2015005752A1 KR 2014006336 W KR2014006336 W KR 2014006336W WO 2015005752 A1 WO2015005752 A1 WO 2015005752A1
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WO
WIPO (PCT)
Prior art keywords
pulsator
washing
rotor
washing machine
shaft
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Application number
PCT/KR2014/006336
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English (en)
Korean (ko)
Inventor
안연수
유수엽
송덕현
Original Assignee
주식회사 아모텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to CN201480037334.4A priority Critical patent/CN105358755B/zh
Priority claimed from KR1020140088494A external-priority patent/KR101619231B1/ko
Publication of WO2015005752A1 publication Critical patent/WO2015005752A1/fr
Priority to US14/982,571 priority patent/US10214846B2/en

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F2103/24—Spin speed; Drum movements

Definitions

  • the present invention relates to a washing machine driving apparatus capable of forming various washing water streams by allowing the washing tank and the pulsator to be driven separately, a washing machine having the same, and a control method thereof.
  • a rotating tank is rotatably provided as a washing tank and a dehydrating tank in an outer tank, and a stirring body (pulsator) is rotatably installed at the bottom of the rotating tank. Since the stirring body and the rotating tank are rotated by one drive motor, when the washing operation is executed, the rotation of the driving motor is transmitted to the stirring body while the rotating tank is braked to stop, and the forward and reverse rotation driving at a relatively low speed is performed. When performing, it is configured to release the braking of the rotating tank to transmit the rotating tank and the stirring body without slowing down the rotation of the driving motor, thereby driving both of them.
  • Patent Document 1 Korean Laid-Open Patent Publication No. 10-2003-0077682
  • Patent Document 2 Korean Laid-Open Patent Publication No. 10-2003-0077682
  • a dehydration shaft that is rotatably supported by the shaft support bearing case to transmit rotational power to the dehydration tank
  • washing shaft that transmits rotational power to the pulsator
  • a BLDC motor that rotates the rotor as the stator is energized.
  • It includes a clutch mechanism that can switch the power transmission path of the motor to the washing shaft or dewatering shaft in response to the stroke or dehydration stroke.
  • Patent Document 1 the step of inverting the BLDC motor left and right for the restraint of the coupling before performing the step of raising the coupling to the washing mode position by turning on the clutch motor after completion of the water supply for washing.
  • the serration of the inner circumferential surface of the coupling is subjected to the surface pressure acting in opposite directions from the serration of the lower end of the dehydration shaft and the serration of the inner connector of the inner connector by staggering the dehydration shaft and the inner connector engaged with the coupling.
  • Such a conventional fully automatic washing machine has a problem in that a clutch motor is provided so that power can be selectively transmitted to the washing shaft and the dewatering shaft so that the dewatering tank and the pulsator cannot be driven independently and thus various water flows cannot be formed.
  • Patent Document 1 since the washing stroke of the low speed and high torque characteristics and the dehydration stroke of the high speed and low torque characteristics are to be performed using a single drive motor, there is a problem that the motor design optimized for any one stroke cannot be achieved. . As a result, a motor optimized for a slightly washing stroke is designed and the dehydration stroke is subjected to so-called weak field control to solve the high-speed rotation problem during the dehydration stroke, but the control is complicated.
  • Patent Document 1 in order to solve the problem that high torque is required in the washing stroke and weak field control is required in the dehydration stroke, Korean Patent Publication No. 10-0548310 having a planetary gear set and a clutch mechanism (patent Document 2) has been proposed.
  • the washing machine disclosed in Patent Literature 2 includes an outer case forming an outer shape, an outer tub supported inside the outer case to accommodate washing water therein, and an inner tub for washing and dehydrating combined use that is rotatably housed in the outer tub;
  • a pulsator Pulsator
  • a pulsator is installed so as to rotate relative to the inner tank to form a washing water flow, a drive motor for generating a driving force for rotating the inner tank and the pulsator, and receives the driving force of the drive motor to the inner tank
  • the carrier supporting the planetary gear so as to rotate and revolve, and the rotation of the inner tank and the pulsator during washing or dehydration. It includes a clutch spring for controlling.
  • Washing machine of Patent Document 2 is equipped with a planetary gear set consisting of a sun gear, a ring gear, a planetary gear and a carrier, to reduce the rotational force of the drive motor to transfer to the pulsator and the inner tank, the clutch spring is activated to selectively select the pulsator and inner tank It transmits power to the pulsator when washing, and rotates the pulsator and inner tank at the same time when dewatering.
  • a planetary gear set consisting of a sun gear, a ring gear, a planetary gear and a carrier
  • a washing machine having a planetary gear set is a structure in which the pulsator and the inner tank can rotate only in the same direction because the planetary gear set is supported by the one-way bearing, and the pulsator and the inner tank are opposite to each other.
  • the dehydration combined washing machine disclosed in Korean Laid-Open Patent Publication No. 10-1999-0076570 includes an outer box, an outer tank elastically supported by a plurality of elastic hanging mechanisms in the outer box, A rotating tank that serves as a washing tank and a dewatering tank rotatably disposed in the outer tank; A stirring body installed in the rotating tank, a washing motor installed to directly drive the stirring body and controlled at a variable speed, and a dehydration motor controlled at a variable speed installed to directly drive the rotating tank, the rotor of the washing motor being stirred
  • the lower end of the rotary shaft of the sieve is rotatably attached to the stirring body, and the rotor of the dewatering motor is characterized in that the rotation is attached to the rotary tank integrally with the lower end of the rotary shaft of the rotating tub.
  • the washing motor has a low speed high torque motor characteristic
  • the dehydration motor has a high speed low torque motor characteristic than the washing motor
  • the washing motor is an outer rotor type and is configured with a larger diameter than the dehydration motor
  • the dehydration motor The inner rotor is configured so that the washing motor is on the outside and the dewatering motor is on the inside.
  • the washing motor is of an outer rotor type and configured to have a larger diameter than the dewatering motor, but there is a problem in that the driving torque is insufficient to process a large amount of laundry of a large capacity washing machine.
  • the washing machine of Document 3 rotates the washing motor at a predetermined rotational speed in a state in which the dehydration motor is set to DC braking mode in the washing process to fix the rotating tub, or rotates the washing motor forward.
  • the rotating tank resists the load by loads such as the amount of laundry and the quantity of water, and almost stops without rotating in the opposite direction, thereby preventing idling.
  • the washing machine of the document 3 is driven in spite of the heavy weight of the rotating tank and the load of the large amount of laundry and the amount of water contained therein, even though the starting torque of the rotating tank is larger than the starting torque of the stirring body.
  • the stirring body is driven by a washing motor having a larger diameter than the dewatering motor and disposed outside and having a low speed high torque motor characteristic in an outer rotor type.
  • the structure is proposed, there is a problem that can not implement a strong washing water flow by driving the stirring body and the rotating tank in the opposite direction to each other.
  • the washing machine of the document 3 discloses a structure capable of independently driving the stirring body and the rotating tub by using the two driving motors, but it is not proposed to make various types of washing water flow using the same.
  • An object of the present invention is to adopt the washing machine motor of the double rotor-double stator structure to drive the pulsator and the washing tank independently, while the rotational force of the rotor applied to the pulsator is converted into torque to transmit high torque starting of the pulsator.
  • the present invention provides a washing machine driving device suitable for a large-capacity washing machine and a washing machine having the same.
  • Another object of the present invention is to drive the pulsator and the washing tank independently, and to set the planetary gear device in a rotatable state in both directions to implement the bi-force and uni-force power to form a variety of water flow pattern in the washing administration It is to provide a washing machine and a control method thereof.
  • Still another object of the present invention is to adopt a washing machine motor of a double rotor-double stator structure to independently drive a pulsator and a washing tank, and to output the outer rotor having a high torque characteristic to a washing tank requiring a larger starting torque.
  • the present invention provides a washing machine driving device capable of driving and driving a pulsator requiring a relatively small starting torque to an output of an inner rotor, and a washing machine having the same.
  • Another object of the present invention is to drive the washing tank to the output of the outer rotor having a high torque characteristics, and the pulsator and the washing tank can be driven independently using a washing machine motor that can drive the pulsator to the output of the inner rotor pair
  • the present invention provides a washing machine and a control method thereof capable of realizing power and single power to form various powerful water flow patterns during a washing operation.
  • Still another object of the present invention is to control the rotational direction and the rotational speed of the pulsator and the washing tank independently to form a variety of types of washing water flow can improve the degree of cleaning, improve the foaming performance, tangling It is possible to prevent and rhythm washing, and to provide a control method of a washing machine that can adjust the flow intensity.
  • Another object of the present invention when driving the pulsator and the washing tank in the opposite direction in the washing or rinsing process, first start the larger starting torque in the pulsator and the washing tank to rotate in one direction, and then the starting torque is smaller in the same direction.
  • the present invention provides a control method of a washing machine that realizes driving in opposite directions between a pulsator and a washing tank by rotating and then rotating the reverse of a large starting torque.
  • the present invention is an outer shaft having one end connected to the washing tank; An inner shaft having one end connected to the pulsator; A planetary gear device installed in the pulsator and the washing tank through the outer shaft and the inner shaft to reduce the rotational speed transmitted through the inner shaft; First and second bearings respectively installed on the outer shaft to rotatably support the planetary gear device in both directions; And a washing machine motor applying rotational force to the outer shaft and the inner shaft, respectively, wherein the washing machine motor comprises: an outer rotor connected to the outer shaft; An inner rotor connected to the inner shaft; And a double stator having first and second coils to independently drive the outer rotor and the inner rotor, wherein the output of the pulsator is accelerated or decelerated according to the rotational direction of the outer rotor. It provides a driving device.
  • the washing machine driving apparatus may further include a control device for independently applying the first driving signal and the second driving signal to the first coil and the second coil, and the control device may include a first driving applied to the first coil.
  • the rotational speed of the pulsator may be controlled by detecting the rotational speed of the ring gear of the planetary gear device.
  • the inner shaft includes a first inner shaft connected to the inner rotor and a second inner shaft connected to a pulsator
  • the outer shaft is connected to the first outer shaft connected to the outer rotor and the washing tank. It may include a second outer shaft.
  • the planetary gear device includes a ring gear connecting between the first outer shaft and the second outer shaft, a sun gear connected to the first inner shaft, an outer gear of the sun gear and an inner gear of the ring gear;
  • the planetary gear may include a carrier rotatably supported and connected to the second inner shaft.
  • the pulsator and the washing tank are driven in opposite directions in the washing or rinsing process, the pulsator and the washing tank are started with a large starting torque first to rotate in one direction, and then the small starting torque is rotated in the same direction. Subsequently, the reverse rotation of the larger starting torque can realize driving of the pulsator and the washing tank in opposite directions.
  • the present invention is an outer shaft having one end connected to the washing tank; An inner shaft having one end connected to the pulsator; A planetary gear device installed in the pulsator and the washing tank through the outer shaft and the inner shaft to reduce the rotational speed transmitted through the inner shaft; First and second bearings respectively installed on the outer shaft to rotatably support the planetary gear device in both directions; And a washing machine motor applying rotational force to the outer shaft and the inner shaft, respectively, wherein the washing machine motor comprises: an inner rotor connected to the outer shaft; An outer rotor connected to the inner shaft; And a double stator for independently rotating and rotating the outer rotor and the inner rotor, and the output of the pulsator provides a washing machine driving device, wherein the output is accelerated or decelerated according to the rotational direction of the inner rotor.
  • the washing machine driving device drives the pulsator and the washing tank in the same direction in a washing or rinsing process
  • the pulsator and the washing tank are started with a larger starting torque first to rotate in one direction, and then the starting torque is smaller in the same direction. Can be rotated.
  • the present invention provides a washing tank connected by an outer shaft; A pulsator connected by an inner shaft; A planetary gear device installed in the pulsator and the washing tank through the outer shaft and the inner shaft to reduce the rotational speed transmitted through the inner shaft; First and second bearings respectively installed on the outer shaft to rotatably support the planetary gear device in both directions; And a washing machine motor having a double rotor-double stator structure for applying rotational force to the outer shaft and the inner shaft, respectively, wherein the output of the pulsator is accelerated or decelerated according to the rotation direction of the outer rotor or the inner rotor of the washing machine motor. It provides a washing machine characterized in that.
  • the washing machine motor includes an outer rotor connected to the outer shaft; An inner rotor connected to the inner shaft; And a double stator for independently rotating and driving the outer rotor and the inner rotor.
  • the washing machine motor includes an inner rotor connected to the outer shaft; An outer rotor connected to the inner shaft; And a double stator for independently rotating and driving the outer rotor and the inner rotor.
  • the present invention provides a washing tub connected by an outer shaft, a pulsator connected by an inner shaft, and a washing machine motor having a double rotor-double stator structure for applying rotational force to the outer shaft and the inner shaft, respectively.
  • the washing machine comprising a washing stroke, a rinsing stroke and a control method of the washing machine including a dehydration stroke
  • the washing stroke comprises the step of forming a washing stream using the pulsator and the washing tank, the pulsator of the
  • the output provides a control method of the washing machine, characterized in that the acceleration or deceleration is made according to the rotation direction of the outer rotor or the inner rotor of the washing machine motor.
  • the pulsator and the washing tank may be driven at different directions and at different speeds, thereby forming a strong water stream in a pattern form.
  • the step of forming the washing water stream may form a strong water flow to increase the degree of cleaning by driving the pulsator and the washing tank in different directions and the same speed, the rhythm flow by driving the pulsator and the washing tank at a variable speed Can be formed.
  • the forming of the washing water stream may drive the pulsator to form a rising and falling rotational water stream, and driving the pulsator and the washing tank at the same direction and at different speeds to form a vortex that prevents laundry damage. Can be.
  • the forming of the washing water stream may drive the washing tub to form a tangle preventing water stream.
  • the forming of the washing water stream may include rotating the pulsator in one direction by rotating the inner rotor in one direction; Rotating the washing tub in one direction by rotating the outer rotor in one direction when the pulsator is rotated at a predetermined speed; And rotating the pulsator in the opposite direction by rotating the inner rotor in the opposite direction while the washing tub is being rotated in one direction, wherein starting torque is first generated in a rotational direction for rotating the washing tub. You can rotate a large pulsator.
  • the starting torque of the pulsator and the washing tank is first started first, and then the driving torque is rotated in one direction. Can be rotated.
  • the washing machine includes a planetary gear device installed in the pulsator and the washing tank through the outer shaft and the inner shaft to reduce the rotation speed transmitted through the inner shaft; And first and second bearings respectively installed on the outer shaft to rotatably support the planetary gear device in both directions, and when the outer rotor is initially loaded, the rotation force of the outer rotor is applied to the pulsator. Starting current may be lowered by being transmitted to the washing tank by the planetary gear device.
  • the present invention comprises the steps of rotating the pulsator in one direction by rotating the inner rotor in one direction; Rotating the washing tub in one direction by rotating the outer rotor in one direction when the pulsator is rotated at a predetermined speed; And rotating the pulsator in the opposite direction by rotating the inner rotor in the opposite direction while the washing tub is being rotated in one direction, wherein starting torque is first generated in a rotational direction for rotating the washing tub. It provides a control method of a washing machine, characterized in that for rotating a large pulsator.
  • the washing machine motor of the double rotor-double stator structure can be used to independently drive the pulsator and the washing tank, thereby eliminating the existing clutch mechanism, thereby simplifying the structure, and providing the pulsator.
  • the rotational force of the applied rotor is capable of realizing high torque starting of the pulsator by converting and transmitting torque, thereby providing a washing machine motor suitable for a large capacity washing machine and a washing machine having the same.
  • the pulsator and the washing tank can be driven independently, and the planetary gear device can be set in a rotatable state in both directions, thereby enabling twin and single power to form various water flow patterns during washing administration. have.
  • the washing machine motor of the double rotor-double stator structure when used to independently drive the pulsator and the washing tank, the washing tank requiring a larger starting torque is driven at the output of the outer rotor having the high torque characteristic.
  • the pulsator which requires a relatively small starting torque, is driven at the output of the inner rotor, the pulsator and the washing tank can be driven in opposite directions in the washing or rinsing process, thereby forming various water flow patterns.
  • the present invention can independently drive the pulsator and the washing tank by using a washing machine motor capable of driving the washing tank to the output of the outer rotor having a high torque characteristics and the pulsator to the output of the inner rotor, so that the power and the step It is possible to realize the power can form a variety of powerful water flow patterns in the washing administration.
  • the present invention can control the rotation direction and the rotational speed of the pulsator and the washing tank independently to form a variety of types of washing water flow to improve the degree of cleaning, improve the loosening performance, and prevent tangling and Rhythm washing is possible, and the intensity of water flow can be adjusted.
  • the pulsator and the washing tank are driven in opposite directions in the washing or rinsing process
  • the pulsator and the washing tank are started with a large starting torque first to rotate in one direction, and then the small starting torque is rotated in the same direction.
  • the reverse rotation of the large starting torque enables the pulsator and the washing tank to be driven in opposite directions.
  • the driving method using the inertia force is applied, the starting is smoothly performed.
  • FIG. 1 is an axial cross-sectional view of a washing machine according to a first embodiment of the present invention.
  • FIG. 2 is an axial cross-sectional view of the washing machine motor according to the first embodiment of the present invention.
  • FIG 3 is an enlarged cross-sectional view of the washing machine motor according to the first embodiment of the present invention.
  • FIG 4 is an enlarged cross-sectional view of the planetary gear device according to the first embodiment of the present invention.
  • FIG 5 is a sectional view in the radial direction of the washing machine motor according to the first embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view of the stator core assembly constituting the stator according to the first embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a split core constituting the stator core according to the first embodiment of the present invention.
  • FIG. 8 is an axial sectional view of a washing machine motor according to a second embodiment of the present invention.
  • FIG. 9 is a block circuit diagram of a washing machine control apparatus according to the present invention.
  • FIG. 10 is a flowchart illustrating an overall washing machine control method according to the present invention.
  • FIG. 11 is a flowchart illustrating a washing operation in detail in FIG. 10.
  • FIG. 12 is a flowchart illustrating a rinsing stroke in detail in FIG. 10.
  • FIG. 13 is a flow chart illustrating a method for forming mutually opposite bidirectional washing water flow using the inertial force control according to the present invention.
  • FIG. 14 is a flow chart showing a method of forming a mutual co-directional bidirectional washing water flow using the inertial force control according to the present invention.
  • 15 is a flow chart illustrating a method of forming mutually opposite bidirectional washing water flow according to the present invention.
  • 16 is a flowchart illustrating a method of forming a single-force (pulsator) laundry stream using inertial force control according to the present invention.
  • Figure 1 is an axial sectional view of the washing machine according to the first embodiment of the present invention
  • Figure 2 is an axial sectional view of the washing machine motor according to the first embodiment of the present invention.
  • a washing machine includes a case 100 forming an external shape, an outer tub 110 disposed inside the case 100 to accommodate washing water, and A washing tank 120 rotatably disposed in the outer tub 110 to perform washing and dehydration, a pulsator 130 rotatably disposed at the bottom of the washing tub 120 to form a stream of laundry; A washing machine motor 140 is installed below the washing tank 120 to drive the washing tank 120 and the pulsator 130 simultaneously or selectively.
  • the washing machine motor 140 includes an outer rotor 50 connected to the outer shafts 20 and 22, an inner rotor 40 connected to the inner shafts 30 and 32, and an inner rotor. It includes a stator 60 disposed with a gap between the 40 and the outer rotor 50 to drive the inner rotor 40 and the outer rotor 50 to rotate.
  • the washing machine motor 140 has outer shafts 20 and 22 connected to the washing tub 120, and inner shafts 30 rotatably disposed in the outer shafts 20 and 22 and connected to the pulsator 130. 32, the rotational force is transmitted to the washing tank 120 and the pulsator 130.
  • One of the inner shafts 30 and 32 and the outer shafts 20 and 22 may increase torque by reducing the rotation speed.
  • the planetary gear device 70 is installed on the inner shafts 30 and 32 to reduce the rotational speed of the inner shafts 30 and 32 to increase the torque, and then increase the torque to the pulsator 130. To pass).
  • the outer shafts 20 and 22 are formed in a cylindrical shape so that the inner shafts 30 and 32 pass through, the first outer shaft 20 connected to the outer rotor 50, and the second connected to the washing tank 120. And an outer shaft 22.
  • the inner shafts 30 and 32 include a first inner shaft 30 connected to the inner rotor 40 and a second inner shaft 32 connected to the pulsator 130.
  • the planetary gear device 70 includes a ring gear 72 connecting the first outer shaft 20 and the second outer shaft 22, and the first inner shaft ( 30 is integrally connected to the sun gear 74, the outer gear of the sun gear 74 and the inner surface of the ring gear 72, a plurality of planetary gears 78, and the plurality of planetary gears 78 And a carrier 76 rotatably supported and connected to the second inner shaft 32.
  • the first outer shaft 20 and the second outer shaft 22 are connected by a ring gear 72 such that the rotation speed of the first outer shaft 20 is maintained as it is. 22). Therefore, the rotation speeds of the first outer shaft 20 and the second outer shaft 22 are the same.
  • first inner shaft 30 is integrally formed with the sun gear 74 in the planetary gear device 70, and the second inner shaft 32 is connected to the carrier 76 by spline coupling or the like, and the carrier ( 76 is rotatably supported at the center of the planetary gear 78.
  • the rotation speed of the first inner shaft 30 is decelerated while passing through the sun gear 74, the plurality of planetary gears 78, and the carrier 76, and the torque is increased to be transmitted to the second inner shaft 32.
  • the inner shafts 30 and 32 are connected to each other through the planetary gear device 70 so that the rotation speed of the inner rotor 40 is reduced and transmitted to the pulsator 130, thereby increasing the torque of the pulsator 130. It is possible to apply to a large-capacity washing machine that requires high torque driving.
  • a cylindrical first sleeve bearing 80 and a second sleeve bearing 82 are installed between the outer circumferential surface of the first inner shaft 30 and the inner circumferential surface of the first outer shaft 20 to form the first inner shaft 30. Support rotatably.
  • the third sleeve bearing 84 and the fourth sleeve bearing 86 are installed on upper and lower inner surfaces of the second outer shaft 22 to rotatably support the second inner shaft 32.
  • the outer surface of the first outer shaft 20 is formed with a first connecting portion 90 to which the outer rotor support 56 of the outer rotor 50 is connected, and the inner rotor 40 at the lower end of the first inner shaft 30.
  • the inner rotor support 46 of the second connecting portion 92 is formed.
  • the first connector 90 and the second connector 92 may have a structure that is serration-coupled or spline-coupled by protrusions formed on outer surfaces of the first outer shaft 20 and the first inner shaft 30. It may have a structure in which key grooves are formed to mutually key.
  • first fixing nut 34 is screwed to the lower end of the first outer shaft 20 to prevent the outer rotor support 56 from being separated from the first outer shaft 20, and the first inner shaft (
  • the second fixing nut 36 is screwed to the lower end of the 30 to prevent the inner rotor support 46 of the inner rotor 40 from being separated.
  • a third connection portion 94 is formed on the upper outer surface of the second outer shaft 22 to connect the washing tub 120, and a fourth connection portion is connected to the pulsator 130 on the upper outer surface of the second inner shaft 32. 96 is formed.
  • the third connector 94 and the fourth connector 96 may have a structure that is serration-coupled or spline-coupled by protrusions formed on outer surfaces of the second outer shaft 22 and the second inner shaft 32. It may have a structure in which key grooves are formed to mutually key.
  • a first seal 220 is installed between the second outer shaft 22 and the second inner shaft 32 to prevent the washing water from leaking, and is washed between the second outer shaft 22 and the bearing housing 10.
  • a second seal 210 is mounted to prevent leakage of water.
  • the first bearing 26 is disposed on the outer surface of the first outer shaft 20, and the second bearing 28 is disposed on the outer surface of the second outer shaft 22 to rotate the outer shafts 20 and 22. Support.
  • the first bearing 26 is installed in the first bearing housing 102, and the second bearing 28 is installed in the second bearing housing 10.
  • the first bearing housing 102 is formed of a metal material, and extends outwardly from the first bearing seat 104 and the first bearing seat 104 on which the first bearing 26 is seated to form a cylindrical shape.
  • the cover part 106 is disposed to be wrapped with a predetermined gap on the outer surface of the planetary gear device 70 to protect the planetary gear device, and extends outward from the upper end of the cover part 106 to form a disc and stator ( 60) and the flat plate portion 108 to which the outer tub 110 is fixed.
  • the flat plate 108 is fastened and fixed to the second bearing housing 10 by a plurality of bolts 250 in the circumferential direction.
  • the second bearing housing 10 is formed of a metal material, and extends outwardly from the second bearing seat 12 and the second bearing seat 12 on which the second bearing 28 is seated.
  • the flat plate 18 is fastened to the flat plate 108 of the first bearing housing 102 by the bolt 250, and is fixed to the stator support 270 and the outer tub 110 by the bolt 260.
  • the ring gear 72 of the planetary gear device 70 is inserted and connected between the first outer shaft 20 and the second outer shaft 22 to support the first outer shaft 20.
  • the first bearing 26 and the second bearing 28 supporting the second outer shaft 22 are constituted by bearings capable of bidirectional rotation.
  • the planetary gear device 70 is set in a state capable of bidirectional rotation, and this structure is rotated in one direction only for maintaining the fixed state of the planetary gear device in the conventional fully automatic washing machine or for dehydrating stroke. It has a support structure different from that of the support structure.
  • the washing tank 120 and the pulsator (by the washing machine motor 140 of the bi-force structure composed of a double rotor-double stator) It is possible to form laundry streams in various ways while rotating 130) simultaneously or selectively and in the same and opposite directions.
  • washing machine motor 140 of a twin-force structure composed of a double rotor-double stator will be described in detail with reference to FIGS. 2, 3, and 5.
  • the washing machine motor 140 includes an outer rotor 50, an inner rotor 40, and a stator 60, and the stator 60 selectively / independently includes the outer rotor 50 and the inner rotor 40.
  • An outer stator and an inner stator are provided for driving.
  • the outer stator and the inner stator are illustrated as being integrally formed. However, the outer stator and the inner stator may have a separate structure.
  • the inner rotor 40 is disposed with a predetermined gap on the inner surface of the stator 60, and a plurality of first magnets 42 in which N poles and S poles are alternately disposed.
  • An inner rotor support 46 formed integrally with the first magnet 42 and the first back yoke 44 by insert molding, and the first back yoke 44 disposed on the rear surface of the first magnet 42. It includes.
  • the inner rotor support 46 is formed integrally with the first magnet 42 and the first back yoke 44 by molding with a thermosetting resin, for example, a bulk molding compound (BMC) molding material such as polyester. . Therefore, the inner rotor 40 can have waterproof performance and can shorten the manufacturing process.
  • a thermosetting resin for example, a bulk molding compound (BMC) molding material such as polyester.
  • the inner rotor support 46 has an inner end thereof connected to the second connecting portion 92 of the first inner shaft 30, and an outer surface of the outer end thereof has a first magnet 42 and a first back yoke 44. It is fixed, and the planetary gear device 70 is accommodated inside to form an approximately cup shape so as to implement a compact structure.
  • the pulsator 130 may be sufficiently rotated by the torque of the inner rotor 40 because the rotation torque is not large.
  • the outer rotor 50 is disposed on the outer surface of the stator 60 with a plurality of second magnets 52 and N and S poles alternately arranged on the rear surface of the second magnet 52.
  • the second back yoke 54 is disposed, and the outer rotor support 56 integrally formed with the second magnet 52 and the second back yoke 54 by insert molding.
  • the outer rotor support 56 is formed integrally with the second magnet 52 and the second back yoke 54 by molding with a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester. .
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester.
  • the outer rotor 50 can have waterproof performance and can shorten the manufacturing process.
  • the outer rotor support 56 has an inner end connected to the first connecting portion 90 of the first outer shaft 20 to rotate like the first outer shaft 20, and the second magnet 52 on the inner surface of the outer end. And the second back yoke 54 is fixed, the inner side of the planetary gear device 70 is accommodated to form a cup shape so as to implement a compact structure and the outer side forms a cup shape inverted to accommodate the stator 60, have.
  • the stator 60 includes a plurality of stator cores 62 assembled in an annular shape, a non-magnetic bobbin 64 wrapped around the outer circumferential surface of each of the plurality of stator cores 62, and a stator.
  • the first coil 66 wound on one side (ie, the inner side) of the core 62, the second coil 68 wound on the other side (ie, the outer side) of the stator core 62, and the plurality of stator cores ( 62 includes a stator support 270 in which the outer periphery is fixed to the outer tub 110.
  • the stator support 270 is formed integrally with the stator core 62 by insert molding after arranging the plurality of stator cores 62 in the circumferential direction at regular intervals.
  • the stator support 270 has a through hole formed at the center thereof so that the inner rotor 40 and the planetary gear device 70 are disposed. 10) is fixed to the outer tub 110 by bolts 260 together.
  • the stator support 270 is molded by an insert molding method by molding with a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester. It is arranged integrally at regular intervals.
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester. It is arranged integrally at regular intervals.
  • stator support 270 is manufactured separately from the stator core 62 using a resin or metal material and then bolted to the stator support 270. This is possible.
  • the stator 60 according to the present invention may be configured by assembling a plurality of stator core assemblies 62a formed by using a plurality of split cores in an annular shape, as shown in FIG. 5. And may be configured using an integrated stator core.
  • one divided core may be used for each tooth, or several teeth, for example, three teeth may be manufactured as one divided tooth and assembled.
  • three teeth may be manufactured as one divided tooth and assembled.
  • winding three coils consecutively for one phase of U, V, W is made of three teeth as one split tooth. It is also preferable.
  • the stator core 62 is formed on the opposite side of the first teeth portion 310 and the first teeth portion 310 on which the first coils 66 are wound.
  • the inner rotor 40 rotates when power is applied only to the first coil 66.
  • the power is applied only to the second coil 68, only the outer rotor 50 is rotated.
  • the power is applied to the first coil 66 and the second coil 68 simultaneously, the inner rotor 40 and the outer rotor ( 50 is rotated at the same time.
  • the through hole 332 is formed in the center of the partition 314 so that the first magnetic circuit formed by the first coil 66 and the second magnetic circuit formed by the second coil 68 interfere with each other. It serves to prevent.
  • the through hole 332 may be formed long in the lateral direction of the partition 314 in the form of a slot in addition to the circular.
  • the first flange portion 316 disposed to face the first magnet 44 is formed at the end of the first tooth portion 310, and the second magnet 54 is formed at the end of the second tooth portion 312.
  • a second flange portion 318 is disposed to face the formation.
  • the first flange 316 and the second flange portion 318 are inward and at a predetermined curvature so as to correspond to the first magnet 42 of the inner rotor 40 and the second magnet 52 of the outer rotor 50, respectively. It forms an outwardly curved surface. Therefore, since the roundness of the inner circumferential surface and the outer circumferential surface of the stator core 62 is increased, the magnetic gap is constant while the inner circumferential surface and the outer circumferential surface of the stator 60 are close to each other while the first magnet 42 and the second magnet 52 are close to each other. Can be maintained.
  • the coupling parts 320 and 322 have a structure directly connected to allow the stator cores 62 to be energized with each other.
  • the coupling parts 320 and 322 are formed such that the coupling protrusion 322 protrudes on one side of the partition 314, and the coupling groove 320 into which the coupling protrusion 322 is fitted to the other side of the partition 314. ) Is formed, and when the coupling protrusion 322 is fitted into the coupling groove 320 to assemble, the stator cores 62 are radially arranged and have a structure directly connected to each other.
  • the coupling portion forms pinholes at both ends of the partition portion of the stator core, and connects the pin member between the pinholes of the two stator cores while connecting the cores to each other to connect the stator cores. It is also possible to apply the structure, and a method of caulking using a caulking member in a state in which the stator cores are in contact with each other.
  • the first tooth part 310 on which the first coil 66 is wound forms an inner stator
  • the second coil 68 is formed on the opposite side of the first tooth part 310.
  • the wound second tooth portion 312 forms an outer stator to form a double stator.
  • the washing machine motor 140 of the present invention forms a first magnetic circuit L1 between one side of the stator 60 on which the inner rotor 40 and the first coil 66 are wound (that is, the inner stator), Since the second magnetic circuit L2 is formed between the outer rotor 50 and the other side of the stator 60 on which the second coil 68 is wound (that is, the outer stator), a pair of magnetic circuits independent of each other are formed.
  • the inner rotor 40 and the outer rotor 50 may be driven separately, respectively.
  • the first magnetic circuit L1 may include the first magnet 42 of the N pole, the first tooth portion 310 on which the first coil 66 is wound, the inner portion of the partition 314, and the N pole. Via the first magnet 42 and the inner rotor support 46 of the S pole adjacent to the first magnet 42.
  • the second magnetic circuit L2 is divided into a second tooth portion 312 facing the second magnet 52 of the N pole, the second magnet 52 of the N pole, and the second coil 68 wound thereon. Via the outer portion of the portion 314, the second magnet 54 of the S pole, and the outer rotor support 56.
  • the output of the inner rotor 40 of the washing machine motor 140 is transmitted to the inner shafts 30 and 32, and the output of the outer rotor 50 is the outer shafts 20 and 22.
  • the high torque generated from the large diameter outer rotor 50 is transmitted to the washing tank 120 through the outer shafts 20 and 22, and the inner rotor 50 of the small diameter is rotated.
  • the low torque output generated from the NW is torque converted while passing through the inner shafts 30 and 32 and the planetary gear device 70 so that the output of the high torque is transmitted to the pulsator 130, so that a relatively high torque drive is required.
  • the driving of the washing tank 120 can be made smoothly. Therefore, in the present invention, it is possible to form various washing and rinsing water streams utilizing not only the pulsator 130 but also the washing tank 120 at the time of washing and rinsing.
  • FIG. 10 is a cross-sectional view of a washing machine motor according to a second embodiment of the present invention.
  • the washing machine motor includes outer shafts 20 and 22 connected to the washing tub 120 and inner shafts rotatably disposed in the outer shafts 20 and 22 and connected to the pulsator 130.
  • 30 and 32 an inner rotor 40 connected to the outer shafts 20 and 22, an outer rotor 50 connected to the inner shafts 30 and 32, and an inner A stator 60 is disposed between the rotor 40 and the outer rotor 50 so as to independently drive the inner rotor 40 and the outer rotor 50 to rotate independently, and are installed on the inner shafts 30 and 32.
  • the washing machine motor 140 according to the first embodiment includes the pulsator 130 and the inner rotor ( 40 is connected to the planetary gear device 70, the washing tank 120 and the outer rotor 50 is connected by the planetary gear device 70, the washing machine motor 140a according to the second embodiment
  • the washing tank 120 and the inner rotor 40 are connected by the planetary gear device 70, and the pulsator 130 and the outer rotor 50 are connected by the planetary gear device 70.
  • the shape of the inner rotor support 46 and the outer rotor support 56 of the example and the connection portion of the inner end are different from each other in the second embodiment.
  • the washing machine driving method by the washing machine motor 140a according to the second embodiment is the same as the washing machine driving method according to the first embodiment described above, except that the washing machine driving method according to the first embodiment is the inner rotor 40.
  • the rotational force of the transfer to the pulsator 130, the rotational force of the outer rotor 50 is transmitted to the washing tank 120, the washing machine driving method according to the second embodiment the rotational force of the outer rotor is transmitted to the pulsator, There is a difference in that the rotational force of the inner rotor is transmitted to the washing tank.
  • FIG. 9 is a block circuit diagram of a washing machine control apparatus according to the present invention
  • Figure 10 is a flow chart showing the overall washing machine control method according to the invention
  • Figure 11 is a flow chart showing the washing operation in detail in Figure 10
  • Figure 12 10 is a flowchart showing the rinsing stroke in detail.
  • the washing machine control apparatus includes a first driver 530 generating a first driving signal applied to the first coil 66 and a second driving applied to the second coil 68.
  • a second driver 540 for generating a signal, the first driver 530, the second driver 540 and a control unit 500 for controlling the entire washing machine.
  • the control unit 500 acts as a system controller to control the entire washing machine simultaneously with the control of the first and second drivers 530 and 540 as described above, or according to the washing course set by the user from the system controller of the washing machine body. After receiving the determined washing control signal may be configured as a driver-specific control device for applying a separate control signal to the first and second drivers (530, 540) based on this.
  • the control unit 500 may be configured as a signal processing device such as a microcomputer or a microprocessor.
  • the washing machine motor 140 is made of a twin-force structure consisting of a double rotor-double stator, for example, the motor control is made by U, V, W three-phase drive system.
  • the first and second coils 66 and 68 of the stator 60 also consist of U, V, and W three-phase coils, respectively.
  • the first coil 66 wound around the inner tooth 310 forms an inner stator
  • the second coil 68 wound around the outer tooth 312 forms an outer stator.
  • the inner rotor 40 rotated by the inner stator and the inner stator forms an inner motor
  • the outer rotor 50 rotated by the outer stator and the outer stator forms an outer motor
  • the inner motor The motor structure is designed so that the and outer motors are controlled by BLDC, respectively, and the six-step driving control is performed in the first and second drivers 530 and 540, for example.
  • the first and second drivers 530 and 540 each include an inverter including three pairs of switching transistors connected in a totem pole structure, and the three-phase output of each inverter is connected to the first and second coils 66 and 68. It is applied to U, V, W three-phase coils.
  • the control unit 500 detects the rotational positions of the inner rotor 40 and the outer rotor 50 from the first and second rotor position sensors 510 and 520, each of which is formed of a Hall sensor, for example.
  • the first and second drivers 530 and 540 may output U, V, and W three-phase outputs of the first and second coils 66 and 68.
  • V, W is applied to the three-phase coil to drive the inner rotor 40 and the outer rotor 50 in rotation.
  • the control unit 500 holds programs of various washing courses, and all washing courses basically include a washing stroke S11, a rinsing stroke S12, and a dehydrating stroke S13, as shown in FIG. 10. Also, each stroke includes a water supply stroke and a drainage stroke before and after, and at least one of the washing stroke (S11), the rinsing stroke (S12), and the dehydrating stroke (S13) is repeatedly performed according to the washing course.
  • the washing stroke S11 is based on a weight sensing stroke S21 for sensing the weight of the laundry put into the washing tub 120 and a weight of the laundry detected according to the weight sensing stroke S21.
  • Water supply administration (S22) that performs water supply, after the water supply is completed, to solve the kinks in the laundry flow administration (S23), the laundry water flow administration (S23) to operate the laundry water to perform the washing of the laundry
  • the rinsing stroke (S12) is a water supply stroke (S31) for performing a water supply for rinsing, as shown in Figure 12, after the water supply is completed, a rinse water flow stroke (S32) for operating the rinse water flow to perform the rinse of the laundry ), A rinse dehydration stroke (S34) to complete the forbidden water stroke (S33), the rinsing stroke (S12) and dehydration of the laundry to complete the loosening of the laundry in the rinse water flow stroke (S32). ).
  • the washing machine uses the washing machine motor 140 configured as the double rotor-double stator, and uses the first and second drivers 530 and 540 to generate U, V, and W three-phase outputs. It is applied to U, V, W three-phase coils of the coils 66 and 68 to drive the inner rotor 40 and the outer rotor 50 to rotate, and the rotational force of the inner rotor 40 and the outer rotor 50 to the inner shaft.
  • the pulsator 130 and the washing tank 120 are independently applied to the pulsator 130 and the washing tank 120 through the 30, 32, the outer shafts 20, 22, and the planetary gear device 70, respectively.
  • the planetary gear device 70 since the planetary gear device 70 is supported by the first and second bearings capable of bidirectional rotation, the planetary gear device 70 controls the rotation direction and the rotation speed of the pulsator 130 and the washing tank 120 to form various water flows. can do.
  • a driving signal is applied to the first coil 66 by the first driver 510.
  • the inner rotor 40 is rotated in the forward direction, that is, the clockwise direction CW by the magnetic circuit L1
  • the inner shafts 30 and 32 connected to the inner rotor 40 are rotated to watch the pulsator 130.
  • Rotate in the direction CW In this case, the rotational force of the first inner shaft 30 is transmitted to the second inner shaft 32 through the sun gear 74, the planetary gear 78, and the carrier 76 of the planetary gear device 70 to maintain the rotational speed. Torque is increased with deceleration to rotate the pulsator 130.
  • the reduction ratio of the planetary gear device 70 may be set to 5: 1, for example.
  • the planetary gear device 70 since the planetary gear device 70 is not in a constrained state, when more than a certain amount of laundry is put into the washing tank 120, the load is applied to the pulsator 130 and connected to the pulsator 130.
  • the carrier 76 acts as a brake. Then, when the rotational force of the inner rotor 40 is input to the sun gear 74, the rotational force is output to the ring gear 72 so that the washing tub 120 and the outer rotor 50 connected to the ring gear 72 are inner rotor ( In the opposite direction to the rotation direction of 40), that is, counterclockwise (CCW).
  • the ring gear 72 of the planetary gear device 70 is the outer shaft ( 20, 22 and the washing tub 120 is connected to the brake, so that the rotational force of the inner rotor 40 is input to the sun gear 74 and output to the carrier 76.
  • the pulsator 130 connected to the carrier 76 is rotated.
  • the rotational force of the inner rotor 40 is transmitted to the pulsator 130 so that the pulsator 130 is rotated.
  • the washing tank 120 In the washing of the fully automatic washing machine, when the pulsator 130 rotates, the washing tank 120 must be fixed or reversely rotated to generate a rising and falling stream to maximize the efficiency of the washing.
  • the present invention is a structure that does not have a restraint, such as a clutch to the planetary gear device 70, if the washing tank 120 is mounted to the outer rotor 50 of the motor, the washing tank 120 to the rotation of the pulsator 130. Piggybacking and rotating. However, the piggybacking rotation of the washing tank 120 forms a vortex that hinders the rising and falling water flow, so that only one side of the washing is performed, thereby reducing the washing efficiency.
  • the washing tank 120 has a larger and heavier structure than the pulsator 130 and utilizes that the stopping inertia is large, utilizing the stopping inertia according to the control flow shown in FIG. Stop the rotation of the pulsator 130 before rotation to prevent vortex generation to increase the washing efficiency.
  • FIG. 16 is a flowchart illustrating a method of forming a single-force (pulsator) laundry stream using inertial force control according to the present invention.
  • FIG. 16 may be used to form a washing water stream capable of energy saving when the washing water amount is not large.
  • the inner rotor is one of the well-known starting methods, such as a ramp-up start to sequentially rotate the inner rotor 40 to a predetermined RPM, and a sequential start method of gradually increasing the RPM over time.
  • the pulsator 130 is started in the forward direction, that is, the clockwise direction CW (S101).
  • the pulsator 130 After the start of the pulsator 130, the pulsator 130 is rotated in the forward direction CW (S102), and then the preset time for rotating the pulsator 130 in the forward direction CW, that is, the motor on time (ON) TIME) has passed (S103).
  • step S106 the process proceeds to step S106 of stopping the inner rotor 40, that is, the motor, and when the motor ON time has not elapsed, the washing tank 120.
  • Measuring the piggybacking rotational speed of the washing tank 120 determines whether the piggybacking rotational speed exceeds, for example, 50 RPM (S104).
  • step S106 the process proceeds to step S106 of stopping the motor.
  • step S102 the washing tank 120.
  • the pulsator 130 is rotated in the forward direction (CW) until the piggybacking rotational speed of) exceeds 50 RPM.
  • step S115 it is determined whether the washing time has ended when the preset stop time has elapsed (S115). When the washing time is over, the washing process is terminated and the process proceeds to a subsequent processing stroke. Proceeding to step S101, the above procedure is repeated.
  • the single-power (pulsator) washing water flow is applied when the laundry is relatively small, and in the present invention, only the pulsator 130 is quickly driven to form a washing water flow to sense the piggybacking rotation of the washing tub 120.
  • Sensor sensing or time control when reaching a certain RPM, stops the forward rotation of the pulsator 130 and proceeds the reverse rotation until the predetermined time elapses to form a rising and falling rotating water flow If it is, the swinging of the washing tank can be suppressed.
  • the washing efficiency is prevented by performing a control to prevent the vortex rotation of the washing tank to prevent vortex generation.
  • the pulsator 130 and the washing tank 120 are driven in different directions and at the same speed, a strong water flow can be formed to improve the degree of cleaning, and thus, the pulsator 130 and the washing tank 120 can be used in a washing mode requiring strong cleaning.
  • the inner rotor 40 is rotated in the forward direction, and the outer rotor 50 is rotated in the reverse direction, thereby rotating the pulsator 130 in the forward direction and the washing tank 120 in the reverse direction (S81). .
  • step S83 of stopping the inner and outer rotors 40 and 50, that is, the motor, and stops the motor, after which the preset stop time has elapsed. It is determined whether or not (S84).
  • Steps S85 to S88 are performed in opposition to steps S81 to S84 described above.
  • step S88 if the preset stop time has elapsed, it is determined whether the washing time has ended (S89). If the washing time is over, the washing process is terminated and the process proceeds to a subsequent processing stroke, and the washing time is not finished. If no, go to step S81 and repeat the above procedure.
  • the pulsator 130 and the washing tank 120 are driven in different directions and at the same speed, a strong water flow may be formed, and the pulsator 130 and the washing tank 120 may be in different directions and different. When driven at speed, it is possible to form strong water flow in various patterns.
  • the rotational speed of the pulsator 130 and the washing tank 120 by changing the rotational speed of the pulsator 130 and the washing tank 120, it is possible to form a rhythm water flow, as a result it is possible to implement the rhythm washing. That is, when the rotational speeds of the pulsator 130 and the washing tank 120 are controlled to be sharply variable, it is possible to prevent damage to the laundry while forming a strong stream and a rhythm stream.
  • the rotational speed of the pulsator 130 and the washing tank 120 is controlled by the control unit 500 and applied to the first and second coils 66 and 68 by controlling the first driver 530 and the second driver 540. It is possible to achieve by varying the voltage magnitude and the current amount of the first drive signal and the second drive signal to be.
  • FIG. 13 is a flowchart illustrating a method of forming mutually opposite bidirectional washing water streams using inertial force control according to the present invention, and using a pulsator having a large driving torque.
  • the washing tank 120 is rotated in the forward direction CW by rotating the outer rotor 50 in the forward direction CW. It is easily started in the forward direction CW (S42).
  • the washing tank 120 may be easily started. have.
  • the pulsator 130 is rotated in the reverse direction by rotating the inner rotor 40 in the reverse direction (S43). As a result, a strong stream of water can be formed to increase the degree of cleaning.
  • the washing tank 120 when the washing tank 120 is first rotated in the rotation direction using the pulsator 130 having a good starting torque, the starting torque of the washing tank 120 requiring a large starting torque due to the laundry is compensated for. By doing so, it is possible to easily start the washing tank 120, it is possible to lower the starting current (Starting Current), thereby reducing the power consumption.
  • Startting Current the starting current
  • step S45 the process proceeds to the step S45 of stopping the inner and outer rotors 40 and 50, that is, the motor, to stop the motor, and then the preset stop time has elapsed. It is determined whether or not (S46).
  • the pulsator 130 is rotated in the forward direction by rotating the inner rotor 40 in the forward direction CW (S49).
  • step S51 the inner and outer rotors 40 and 50, that is, the motor are stopped, stops the motor, and then a preset stop time has elapsed. It is determined whether or not (S52).
  • the washing tank 120 can be easily started according to the inertia force of the laundry and wash water.
  • the pulsator 130 by rotating the washing tank 120 and the pulsator 130 with a time difference by rotating the washing tank 120 in one direction by using the inertia force of the laundry and the washing water, the pulsator 130 is rotated. It proposes a method of forming a mutually opposite bidirectional washing water flow to rotate in a reverse direction, from which deformation can be made.
  • the washing tank 120 and the pulsator 130 are rotated in the same direction at the same time, and then the inner rotor has reached a preset RPM.
  • the pulsator 130 can be easily started in the opposite direction (CCW), thereby forming mutually opposite bidirectional washing water flow.
  • the washing tank 120 and the pulsator 130 are rotated in the same direction at the same time, and then the washing tank 120 is reached in a preset RPM.
  • the outer rotor 50 for driving the inner rotor 40 to rotate in the opposite direction to rotate the pulsator 130 in the reverse direction (CCW) to form a mutually opposite bidirectional washing water flow.
  • FIG. 14 is a flow chart showing a method of forming a mutual co-directional bidirectional washing water flow using the inertial force control according to the present invention.
  • the washing tank 120 is rotated in the forward direction CW by rotating the outer rotor 50 in the forward direction CW. It starts in the forward direction CW (S62).
  • the washing tank 120 may be easily started. have.
  • both the washing tank 120 and the pulsator 130 maintains the rotation state in the forward direction CW (S63).
  • step S65 the inner and outer rotors 40 and 50, that is, the motor are stopped, and the motor is stopped, after which the preset stop time has elapsed. It is determined whether or not (S66).
  • washing tank 120 and the pulsator 130 maintain the state of being rotated in the reverse direction (CCW) (S69).
  • step S71 of stopping the inner and outer rotors 40 and 50, that is, the motor, to stop the motor, and then the preset stop time has elapsed. It is determined whether or not (S72).
  • the washing tank 120 is easily moved in one direction by using the inertia force of the laundry and the washing water by the time difference driving in which the pulsator 130 is first rotated in the rotation direction to rotate the washing tank 120. It proposes a method of forming a mutually co-directional bidirectional washing water flow to rotate, from which various modifications can be made.
  • the pulsator 130 and the washing tank 120 are soft star in the same direction and at the same speed, and the left and right inverted, and the vortex formation is detected so that the rotation of the pulsator 130 and the washing tank 120 is soft. Start to form a vertical down stream and a vertical upward stream, and maintain rotational force to generate a vortex to form a soft stream.
  • This soft water flow can be solved by, for example, washing the laundry gently by washing the wool, for example, by providing a short on time and a long off type.
  • the above-mentioned soft water flow forming method uses the vortex detection function to switch the vortex to reverse rotation to generate vertical water flow, thereby controlling the washing and rinsing water flow to prevent damage to the laundry, and to wash the contaminants of the laundry even on the soft water flow. And rinsing power can be expected.
  • the water flow forming method may drive the pulsator 130 and the washing tank 120 in the same direction and at different speeds to form a vortex to prevent laundry damage.
  • the dual rhythm water flow can be pursued less energy consumption if the pulsator 130 and the washing tank 120 to control the rotation RPM in the constant speed control of the conventional washing machine to control the energy saving required .
  • you use a stream of water, such as strong-> medium-> weak-> medium-> medium-> strong when you wash, you can expect the degree of cleaning and rinsing with less energy.
  • the soft water flow control method is a washing water flow method in which the pulsator 130 rotates faster or slower than the washing tank 120 when the pulsator 130 and the washing tank 120 rotates in the forward direction.
  • the present invention can be applied to the water flow control method in which the pulsator 130 and the washing tank 120 is accelerated in the forward direction by the normal start method, not the soft start, so that the pulsator and the washing tank rotate in the same manner. have.
  • the washing water flow forming method of the present invention is useful for the washing method of micro laundry, and uses a soft start of a motor.
  • a water flow control method in which the pulsator 130 and the washing tub 120 are soft-started at the same speed and rotated for a long time when the pulsator 130 and the washing tub 120 rotate in the reverse direction, and the motor of a small amount of laundry is started. Reduces current and prevents damage to guns
  • the ring gear 72 of the planetary gear device 70 Since it is connected to the outer shafts 20 and 22 and the washing tank 120, the brake acts. Accordingly, the rotational force of the inner rotor 40 is input to the sun gear 74 and output to the carrier 76. Thus, the pulsator 130 connected to the carrier 76 is rotated.
  • the rotational force of the inner rotor 40 is transmitted to the pulsator 130 so that the pulsator 130 is rotated.
  • the control unit 500 is installed at one side of the outer rotor 50 or the ring gear 72 and according to a signal applied from the first rotor position sensor 510 for detecting the RPM of the outer rotor 50.
  • the rotation and the rotation direction of the rotor 50 are determined.
  • the output of the pulsator 130 is accelerated or decelerated according to the rotational force direction of the outer rotor 50. That is, when the rotation direction of the outer rotor 50 is the same direction as the rotation direction of the inner rotor 40, the output of the pulsator 130 is decelerated, and the rotation direction of the outer rotor 50 is the inner rotor. Acceleration of the output of the pulsator 130 occurs in the opposite direction to the rotational direction of 40.
  • the outer rotor 50 is rotated in the reverse direction (CCW). If the RPM of the outer rotor 50 is greater than or equal to the set value, the electromagnetic brake is used or the outer rotor 50 is turned off. Rotate in the forward direction to adjust the RPM of the outer rotor.
  • the outer rotor 50 acts as a brake so that the rotational force of the inner rotor 40 is transmitted to the pulsator 130 and the pulsator 130 is rotated to perform the washing process.
  • the control unit 500 detects the RPM of the outer rotor 50 according to a signal applied from the first rotor position sensor 510, and is installed at one side of the inner rotor 40 to prevent the inner rotor 40.
  • the RPM of the inner rotor 40 is detected according to the signal applied from the second rotor position sensor 520 that detects the RPM to increase the rotational speed of the inner rotor 40 according to the RPM of the outer rotor 50.
  • the pulsator is stopped to rotate the pulsator 130 in the reverse direction. That is, when the brake action such as the electromagnetic brake of the outer rotor 50 is released, the rotational force of the inner rotor 40 is transmitted to the washing tank 120 so that the washing tank 120 is rotated in the reverse direction and the pulsator 130 is stopped. In this state, when the inner rotor 40 is stopped, the inner rotor 40 is stopped in a state where the load is less, and thus the inner rotor can be stopped with a relatively low power.
  • the inner rotor 40 is rotated in the reverse direction (CCW) to rotate the pulsator 130 in the reverse direction.
  • the inner rotor 40 when the inner rotor 40 is initially started, when the laundry is put into the washing tank 120 and the load is applied to the pulsator 130, the rotational force of the inner rotor 40 is the washing tank. Since the inner rotor 40 is started at an almost no load state, the starting current may be lowered, and thus power consumption may be reduced.
  • the washing machine of the present invention when the inner rotor 40 is stopped, the electromagnetic brake of the outer rotor 50 is released, the inner rotor 40 is stopped in the state in which the pulsator 130 is stopped first, so the inertia moment Since the inner rotor 40 is stopped in a small state, the end current can be reduced, and thus power consumption can be reduced.
  • the washing method using the washing machine motor 140 according to the first embodiment has been described, but the present invention relates to the washing method using the washing machine motor 140a according to the second embodiment shown in FIG. The same can be applied to.
  • the washing machine motors 140 and 140a include the planetary gear device 70 and the structure in which the output of the inner rotor 40 is decelerated and transmitted to the pulsator 130 is described.
  • the washing water flow forming method of the present invention can be applied to the structure in which most of the planetary gear device 70 is removed from the washing machine motors 140 and 140a.
  • the present invention is applied to a washing machine and its control, in particular a fully automatic washing machine, which allows the washing tank and the pulsator to be driven separately to form various washing water streams.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

La présente invention concerne un dispositif d'entraînement de machine à laver en mesure d'entraîner séparément une cuve de lavage et un pulsateur pour former différents écoulements de l'eau de lavage, une machine à laver comportant celui-ci, et un procédé de commande pour celui-ci. Le dispositif d'entraînement de machine à laver comporte : un arbre extérieur raccordé à une cuve de lavage ; un arbre intérieur raccordé au pulsateur ; un mécanisme à pignons planétaires permettant de réduire une vitesse de rotation transférée par l'arbre intérieur ; des premier et deuxième paliers pour supporter le mécanisme à pignons planétaires tout en permettant au mécanisme à pignons planétaires de tourner dans les deux directions ; et un moteur de machine à laver servant à exercer une force de rotation sur l'arbre extérieur et l'arbre intérieur, respectivement. Le moteur de machine à laver comporte un rotor extérieur ; un rotor intérieur ; et un double stator à de fins de rotation indépendante du rotor extérieur et du rotor intérieur. Par ailleurs, la sortie du pulsateur est accélérée ou décélérée en fonction du sens de la rotation du rotor extérieur.
PCT/KR2014/006336 2013-07-12 2014-07-14 Dispositif d'entraînement de machine à laver, machine à laver comportant celui-ci, et procédé de commande pour celui-ci WO2015005752A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480037334.4A CN105358755B (zh) 2013-07-12 2014-07-14 洗衣机驱动装置、具有其的洗衣机和洗衣机的控制方法
US14/982,571 US10214846B2 (en) 2013-07-12 2015-12-29 Washing machine driving device, washing machine having same, and control method therefor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20130082063 2013-07-12
KR10-2013-0082063 2013-07-12
KR1020140088494A KR101619231B1 (ko) 2013-07-12 2014-07-14 세탁기 구동장치 및 이를 구비한 세탁기와 그의 제어방법
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EP3733951A1 (fr) * 2019-05-02 2020-11-04 Whirlpool Corporation Lave-linge à tambour à double rotor
EP3877581A4 (fr) * 2019-01-17 2022-01-12 Samsung Electronics Co., Ltd. Machine à laver

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EP3877581A4 (fr) * 2019-01-17 2022-01-12 Samsung Electronics Co., Ltd. Machine à laver
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EP3733951A1 (fr) * 2019-05-02 2020-11-04 Whirlpool Corporation Lave-linge à tambour à double rotor
US11773525B2 (en) 2019-05-02 2023-10-03 Whirlpool Corporation Double-rotor washing type drum washing machine

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