WO2017014588A1 - 세탁기 구동장치와 이를 구비한 세탁기 및 세탁기 구동방법 - Google Patents

세탁기 구동장치와 이를 구비한 세탁기 및 세탁기 구동방법 Download PDF

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Publication number
WO2017014588A1
WO2017014588A1 PCT/KR2016/007983 KR2016007983W WO2017014588A1 WO 2017014588 A1 WO2017014588 A1 WO 2017014588A1 KR 2016007983 W KR2016007983 W KR 2016007983W WO 2017014588 A1 WO2017014588 A1 WO 2017014588A1
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WO
WIPO (PCT)
Prior art keywords
washing
pulsator
input
output
driving
Prior art date
Application number
PCT/KR2016/007983
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
김병수
송덕현
Original Assignee
주식회사 아모텍
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Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to CN201680042258.5A priority Critical patent/CN107849790B/zh
Publication of WO2017014588A1 publication Critical patent/WO2017014588A1/ko

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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
    • 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 
    • D06F33/46—Control of the energy or water consumption
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • 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
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • 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 present invention provides a washing machine driving device capable of forming a strong three-dimensional three-dimensional washing water flow while minimizing energy consumption when forming washing water flows opposite to each other by reverse driving of the pulsator and the washing tank, and a washing machine having the same. And to a washing machine driving method.
  • 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.
  • the washing motor has a low-speed, high-torque motor characteristic in the washing machine for dehydration combined use disclosed in Korean Patent Laid-Open Publication No. 10-1999-0076570 (Patent Document 1), and the dehydrating motor has a higher speed than the washing motor.
  • the washing motor is of an outer rotor type and configured to have a larger diameter than the dehydrating motor, and the dehydrating motor is configured of an inner rotor type so that the washing motor is on the outside and the dehydrating motor is on the inside.
  • the washing machine of the patent document 1 has a washing motor having an outer rotor type and having a larger diameter than the dewatering motor, but there is a problem in that a driving torque is insufficient to process a large amount of laundry in a large washing machine of 8 kg or more.
  • the washing machine of the said patent document 1 proposes the structure which drives a stirring body by the outer rotor type washing motor which has a larger diameter than the dehydration motor, is arranged outside, and has a low speed high-torque motor characteristic, There is a problem in that it is difficult to implement a strong washing water flow by driving the rotating tub which is required torque in the opposite direction to the stirring body.
  • Patent Document 1 discloses a structure capable of independently driving the stirring body and the rotating tank by using two driving motors, but it is proposed to make various types of washing water streams using high torque in a large-capacity washing machine. It is not.
  • the dehydration motor is set to the energization mode of the rotational direction opposite to the washing motor during the washing process, or only by driving the stirring body by the washing motor in a state in which the rotating tank is prevented from idling by the electric brake. Because of the formation of laundry streams, it is impossible to generate more powerful streams (laundry forces) that can wash large loads of laundry in large-capacity washing machines.
  • Patent Document 2 A technique for forming a variety of laundry streams by simultaneously driving the bath and the pulsator independently has been proposed.
  • Patent Document 2 proposes a washing method for forming a strong water flow by the opposite direction of the bidirectional force by rotating the pulsator and the washing tank in the same direction or the opposite direction during the washing stroke, but reducing the current consumption and efficiency of the washing machine There is no suggestion for the formation of water streams considering the rise.
  • Patent Document 2 when the washing tank is driven in different directions and at the same speed as the pulsator when forming a strong water flow by the opposite direction of the biaxial force, a large current may be consumed when driving the washing tank, resulting in a large energy consumption.
  • the operation method of the conventional fully automatic washing machine using the single-force power generates a vertical rising / falling water flow by changing the direction while repeating the pulsator forward, stop, reverse rotation, stop, so that water and detergent contact the laundry well. This is done.
  • A.C. as the drive motor. Induction motor is used, and the driving time and the stopping time are repeatedly driven and stopped at short time intervals within the range of 0.5 to 2 seconds at the preset RPM according to the application of the driving signal, or the stopping time for the short time during the running time.
  • the intermittent driving method to give a seal is used.
  • Induction motor is characterized by low noise and low vibration, but it has low torque characteristics at low speed and has a slow dynamic response. Therefore, it is difficult to form strong washing water flow while changing the direction of rotation in the forward and reverse direction quickly during the washing stroke. have.
  • the BLDC motor has a fast dynamic response, low rotor inertia, and is easy to control the speed of the synchronous motor.
  • a driving method for utilizing the characteristics of the BLDC motor as a driving device for a washing machine has not been proposed.
  • the present invention has been made to solve the above problems, and its object is to combine a double rotor-double stator drive motor and a planetary gear device, thereby driving the pulsator and the washing tank in a reverse direction to each other.
  • the present invention provides a washing machine and a washing machine driving method capable of forming a strong three-dimensional three-dimensional washing water stream while minimizing energy consumption when forming washing water streams in opposite directions.
  • Still another object of the present invention is to set the operating time longer than the stop time so as to make good use of the characteristics of the BLDC motor to increase the operation rate while reducing the overall washing time to reduce the overall power consumption washing machine and washing machine driving method To provide.
  • Another object of the present invention is durability, as the shift (deceleration) ratio of the planetary gear device is automatically converted, even if the load applied to the twin-drive drive motor is rapidly increased due to large laundry or eccentricity of laundry. It is to provide a washing machine drive device and a washing machine using the same that can implement this high shift structure.
  • Another object of the present invention is to provide a washing machine drive device and a washing machine having the same, by combining a high-power drive motor and a planetary gear device, to implement a high-efficiency washing stroke in a large-capacity washing machine.
  • Still another object of the present invention is to provide a washing machine capable of independently driving a pulsator and a washing tank by using a twin power driving motor to form various water flow patterns during a washing stroke and a rinsing stroke.
  • the present invention provides a washing machine driving device for driving a pulsator and a washing tank independently, and includes an inner rotor and an outer rotor that can be independently controlled by a double stator, and optionally an inner rotor output and an outer.
  • a drive motor of a double rotor-double stator method for generating a rotor output An input inner shaft configured to transfer the inner rotor output to a first input; An input outer shaft rotatably coupled to an outer circumference of the input inner shaft and transferring the outer rotor output to a second input; A planetary gear device in which a shift output generated from a carrier is controlled by a second input applied to a ring gear through the input outer shaft when a first input is applied to a sun gear through the input inner shaft; An output inner shaft which transmits an output generated from the carrier to a pulsator; And an output outer shaft which transmits the output generated from the ring gear to the washing tub, wherein the pulsator has a stop time when the rotational direction is turned clockwise and counterclockwise during the washing stroke. It is characterized by starting before the driving time of the pulsator ends and driving in a direction opposite to the rotation direction of the pulsator.
  • the driving of the washing tank may be extended by the stop time of the pulsator.
  • the washing tank may be driven in a direction opposite to the rotation direction of the pulsator at the same time as the pulsator is started, which is shorter than the driving time of the pulsator.
  • the driving time and the stopping time of the pulsator may be set in the range of 2: 1 to 10: 1.
  • the overshooting drive may be performed at the start and stop operation of the pulsator.
  • a ramp-up drive can be made upon activation of the pulsator.
  • the pulsator may be driven at a variable speed.
  • the stop time may be set longer.
  • RPM of the pulsator and the RPM of the washing tank may be set larger than 3: 1.
  • the ring gear When the decelerated output is generated from the carrier, the ring gear is set to a fixed state by an electromagnetic brake, or the decelerated by applying a rotation force in the same or opposite direction to the rotation direction of the first input to the ring gear.
  • RPM and torque of the output can be controlled.
  • the rotation direction of the second input may be opposite to the first input, and the RPM of the second input may be set smaller than 1/4 of the first input RPM.
  • the RPM of the second input applied to the ring gear is set smaller than the RPM of the first input applied to the sun gear, and the output of the carrier may decelerate at the RPM of the first input.
  • the first input has a high speed and low torque characteristic
  • the carrier output has a low speed and high torque characteristic and can be used for washing or rinsing stroke of the washing machine.
  • the washing machine driving apparatus of the present invention may further include first and second bearings respectively installed on the input outer shaft and the output outer shaft to rotatably support the planetary gear device in both directions.
  • the present invention provides an outer tub for receiving wash water; A washing tank rotatably disposed in the outer tub to perform washing and dehydration; A pulsator rotatably disposed in the washing tank to form a washing stream; And it provides a washing machine including a washing machine driving device for simultaneously or selectively driving the washing tank and the pulsator.
  • a device comprising: a first step of rotationally driving a pulsator in a first direction during a first period; A second step of rotating the washing tub in a direction opposite to the first direction for a second period before the first period ends; Stopping the pulsator in accordance with the passage of the first period; A fourth step of stopping the washing tub according to the passage of the second period after the passage of the first period; And a fifth step of determining whether a stop time of the pulsator has elapsed after the elapse of the second period.
  • the rotation directions of the pulsator and the washing tank may be reversed in the first to fifth steps, respectively.
  • vortices may be generated as the first water flow generated in the forward direction CW and the second water flow in the reverse direction driven by the rotation of the washing tank collide with each other during the second period.
  • the pulsator is driven by a decelerated first output of the output of any one of the inner rotor and the outer of the double rotor-double stator drive motor is input to the sun gear of the planetary gear device, and the washing tank is The output of the other one of the inner rotor and the outer of the drive motor is input to the ring gear of the planetary gear device, and driving may be performed by a second output output from the ring gear without deceleration.
  • a combination of a double rotor-double stator-type twin drive motor and a planetary gear device is used to minimize energy consumption when the pulsator and the washing tank are formed in opposite directions by the reverse driving of each other. At the same time, it is possible to form a strong three-dimensional washing water flow with high cleaning.
  • a strong vortex with high cleaning power can be formed by improving the starting method and the stopping method of the twin-power drive motor when the pulsator and the washing tank are driven in the reverse direction using the twin-force.
  • the transmission (deceleration) ratio of the planetary gear device is automatically converted and the durability is increased as the load is actively absorbed. High transmission structure can be realized.
  • the present invention is a combination of a twin-drive motor and planetary gear device, it is possible to implement a high-efficiency washing stroke in a large capacity washing machine.
  • the pulsator and the washing tank can be driven independently by using the twin-power driving motor, thereby forming various water flow patterns during the washing stroke and the rinsing stroke.
  • the present invention generates a first output that satisfies the low speed and high torque characteristics during the washing stroke, and generates and drives the second output that satisfies the high speed and low torque characteristics during the dehydration stroke, thereby implementing a high-capacity large capacity washing machine.
  • FIG. 1 is an axial cross-sectional view of a washing machine having a washing machine driving device according to a first embodiment of the present invention.
  • FIG. 2 is an axial sectional view of the washing machine drive device shown in FIG. 1.
  • FIG. 3 is a partially enlarged cross-sectional view of the washing machine driving device shown in FIG. 2.
  • 4A and 4B are axial sectional views and radial sectional views of the planetary gear apparatus applied to the washing machine driving apparatus of the present invention, respectively.
  • FIG. 5 is a radial cross-sectional view of a drive motor having a stator configured by assembling a plurality of fully split type split cores having the same number of slots of an outer stator and an inner stator according to the present invention.
  • FIG. 6 is a schematic cross-sectional view of the stator core assembly used for the stator assembly of FIG. 5.
  • FIG. 7 is a plan view of a split core constituting the stator core shown in FIG. 6.
  • FIG 8 is an axial sectional view of the washing machine driving apparatus according to the second embodiment of the present invention.
  • FIG 9 is an axial sectional view of the washing machine driving apparatus according to the third embodiment of the present invention.
  • FIG. 10 is a block circuit diagram of a washing machine control apparatus according to the present invention.
  • FIG. 11 is a flowchart illustrating an overall washing machine driving method according to the present invention.
  • 12A and 12B are flowcharts illustrating a method of forming mutually opposite washing water streams according to the present invention.
  • FIG. 13 to 16 are RPM timing diagrams for implementing the mutually opposite washing water forming method according to Figure 12a and 12b, respectively.
  • the washing machine includes a case 100 forming an external appearance, 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; Washing machine driving device installed at the lower portion of the washing tank 120 and the outer tank 110 to provide the driving force necessary for washing, rinsing, loosening and dewatering stroke to the washing tank 120 and the pulsator 130 simultaneously or selectively. And 150.
  • the washing machine driving device 150 is mounted to the lower portion of the outer tub 110, the drive motor 140 of the double rotor-double stator method for generating a high-speed, low-torque cooperative force from the inner rotor 40 and the outer rotor 50 ), And the high speed, low torque first and first provided by the inner rotor 40 and the outer rotor 50 of the drive motor 150 to rotate the pulsator 130 and the washing tank 120. 2 Optionally shifts to provide a first output that satisfies the low speed and high torque characteristics required in the washing and rinsing strokes, and a second output that satisfies the high speed and low torque characteristics required in the dewatering stroke. And a planetary gear device 70 which is a torque conversion device.
  • the planetary gear device 70 is installed between the drive motor 140, the pulsator 130 and the washing tank 120, and inputs the output of the inner rotor 40 of the drive motor 140 to the input inner shaft 30. ) Is transmitted to the sun gear 74, and the output of the outer rotor 50 is transmitted to the ring gear 72 through the input outer shaft 20.
  • the first input of the high speed and low torque input to the input inner shaft 30 is shifted (torque converted) while passing through the sun gear 74 and the planetary gear 78 of the planetary gear device 70 and then the carrier ( 76.
  • the high speed, low torque second input transmitted to the output inner shaft 32 as the output and transmitted to the ring gear 72 through the input outer shaft 20 is output outer shaft 22 without shifting (torque conversion). Is delivered).
  • the structure and operation of the planetary gear device 70 will be described in detail later.
  • the driving motor 140 may include an inner rotor 40 connected to the input inner shaft 30, an outer rotor 50 connected to the input outer shaft 20, and an inner portion. It includes a stator 60 disposed with a gap between the rotor 40 and the outer rotor 50 to rotationally drive the inner rotor 40 and the outer rotor 50.
  • the stator 60 has a double stator structure for independently driving the inner rotor 40 and the outer rotor 50, respectively.
  • the stator 60 drives the outer stator and the inner stator to selectively and independently drive the inner rotor 40 and the outer rotor 50 using the first and second drivers 530 and 540 shown in FIG. 10. Equipped.
  • 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 input outer shaft 30 is rotatably coupled to the outer circumference of the input inner shaft 30 and receives the output of the outer rotor 50 and transmits the output gear to the ring gear 72 of the planetary gear device 70.
  • an output for transmitting the output of the carrier 76 of the planetary gear device 70 to the pulsator 130 as a second power transmission line is provided.
  • An inner shaft 32 and an output outer shaft 22 rotatably coupled to the outer circumference of the output inner shaft 32 and receiving the output of the ring gear 72 and transmitting the output to the washing tank 120 are provided.
  • the planetary gear device 70 includes a ring gear 72 having both ends connected between an input outer shaft 20 and an output outer shaft 22, and the input inner shaft 30.
  • the outer gear and the ring gear 72 of the sun gear 74 is integrally connected to the sun gear 74 and the outer gear 74 is rotated around the rotation shaft 78a according to the rotation of the sun gear 74.
  • This includes a carrier 76 having an inner circumference connected to the output inner shaft 32 to transmit a shifted output.
  • the planetary gear device 70 is connected to the input outer shaft 20 and the output outer shaft 22 by a ring gear 72 so that the rotational speed (RPM) of the input outer shaft 20 remains the output outer shaft 22 as it is. Is delivered. Therefore, the rotation speeds of the input outer shaft 20 and the output outer shaft 22 are the same.
  • an input inner shaft 30 is integrally formed with the sun gear 74 in the planetary gear device 70, and an inner circumference of the carrier 76 has a spline coupling or serration.
  • the outer peripheral portion of the carrier 76 is rotatably supported by the rotation shaft 78a of the plurality of planetary gears 78.
  • the input and output 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. It is possible to increase the torque, and thus it is possible to apply to large-capacity washing machines requiring high torque driving during washing and rinsing strokes.
  • the inner rotor 40 when the inner rotor 40 is rotated in the same direction as the outer rotor 50, when the outer rotor 50 is rotated, the input outer shaft 20 is rotated and through the ring gear 72 of the planetary gear device 70.
  • the rotational force of the outer rotor 50 is transmitted to the output outer shaft 22 without deceleration, the washing tub 120 connected to the output outer shaft 22 is rotated without deceleration, and the rotational force of the inner rotor 40 is in a non-fixed state sun gear.
  • the pulsator 130 When input to the 74, it is transmitted to the output inner shaft 32 without deceleration through the planetary gear and the carrier so that the pulsator 130 can also be used in the dehydration stroke while rotating in the same direction with the washing tank 120 at high speed.
  • cylindrical first sleeve bearings 80 and second sleeve bearings 82 are provided at intervals to provide an input 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 output outer shaft 22 to rotatably support the output inner shaft 32.
  • the outer surface of the input 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 of the inner rotor 40 at the lower end of the input inner shaft 30.
  • a second connecting portion 92 to which the rotor support 46 is connected is formed.
  • the first connection unit 90 and the second connection unit 92 may have a structure that is serration-coupled or spline-coupled by protrusions formed on outer surfaces of the input outer shaft 20 and the input 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 input outer shaft 20 to prevent the outer rotor support 56 from being separated from the input outer shaft 20, and the input inner shaft 30
  • a second fixing nut 36 is screwed to the lower end to prevent the inner rotor support 46 of the inner rotor 40 from being separated.
  • a third connecting portion 94 is formed on the upper outer surface of the output outer shaft 22 to which the washing tub 120 is connected, and a fourth connecting portion 96 is connected to the pulsator 130 on the upper outer surface of the output inner shaft 32. ) 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 the outer surfaces of the output outer shaft 22 and the output 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 output outer shaft 22 and the output inner shaft 32 to prevent the wash water from leaking, and the wash water is leaked between the output outer shaft 22 and the bearing housing 10.
  • the second seal 221 is installed to prevent it.
  • a first bearing 26 is disposed on the outer surface of the input outer shaft 20, and a second bearing 28 is disposed on the outer surface of the output outer shaft 22 to rotate the input and output outer shafts 20, 22. Support it if possible.
  • 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 input outer shaft 20 and the output outer shaft 22 to support the first outer shaft 20.
  • the bearing 26 and the second bearing 28 supporting the output outer shaft 22 are constituted by bearings capable of bidirectional rotation.
  • the planetary gear device 70 is set in a state capable of rotating in both directions, and this structure is rotated in one direction only for maintaining or maintaining the planetary gear device in a conventional fully automatic washing machine. It has a support structure different from that of the support structure.
  • a driving motor 140 having 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 drive 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 stator may have a structure that is separate from the one in which the outer stator and the inner stator are integrally formed.
  • 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 molded with a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin to be integral with the first magnet 42 and the first back yoke 44. Is formed.
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin to be integral with the first magnet 42 and the first back yoke 44. Is formed.
  • the inner rotor support 46 has its inner end connected to the second connecting portion 92 of the input inner shaft 30, and the first magnet 42 and the first back yoke 44 are fixed to the outer surface of the outer end thereof.
  • the inner planetary gear device 70 is accommodated in an inner cup shape to implement a compact structure.
  • the planetary gear device 70 is rotated.
  • the decelerated output is transmitted to the output inner shaft 32 through the carrier 76 of the pulsator 130 connected to the output inner shaft 32 is rotated by a low speed, high torque rotational force.
  • the pulsator 130 can be sufficiently rotated by the torque of the inner rotor 40 because the rotation torque required is not large.
  • 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 formed integrally with the second magnet 52 and the second back yoke 54 by insert molding.
  • the outer rotor support 56 is molded with a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin to be integral with the second magnet 52 and the second back yoke 54. Is formed.
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin to be integral with the second magnet 52 and the second back yoke 54. Is formed.
  • the outer rotor support 56 has an inner end connected to the first connecting portion 90 of the input outer shaft 20 so as to rotate with the input outer shaft 20, and the second magnet 52 and the first inner surface of the outer end of the outer rotor support 56.
  • the 200 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 is formed in the inverted cup shape to accommodate the stator 60.
  • stator of this invention is demonstrated below.
  • FIG. 5 is a cross-sectional view in a radial direction of a drive motor having a stator configured by assembling a plurality of fully split type stator cores having the same number of slots of an outer stator and an inner stator according to the present invention
  • FIG. 6 is a stator assembly of FIG.
  • a schematic cross-sectional view of the stator core assembly used in FIG. 7 is a plan view of the split stator core used in FIG. 6.
  • the stator 60 includes a plurality of stator core assemblies 61 annularly arranged, a plurality of stator core assemblies 61 annularly arranged, and an outer circumferential portion thereof is fixed to the outer tub 110.
  • a stator support 270 (see FIG. 2) having a through hole formed therein.
  • the plurality of stator core assemblies 61 are divided coil type stator cores 62 which are arranged in an annular shape and coupled to each other as shown in FIGS. 6 and 7, and coil winding regions on outer peripheral surfaces of the split core type stator cores 62, respectively.
  • the bobbin 64 is made of an insulating material which is wrapped to define the non-magnetic material, the first coil 66 wound around one side (outside) bobbin of the stator core 62, and the other side (inside) of the stator core 62. And a second coil 68 wound around the bobbin.
  • the stator support 270 is formed integrally with the plurality of stator core assemblies 61 by insert molding after assembling and arranging the plurality of stator core assemblies 61 in the circumferential direction.
  • 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, and the outer circumferential portion is bent in two stages to surround the outer rotor 50 while the tip portion thereof has a second bearing housing ( 10) is fixed to the outer tub 110 by bolts 260 together.
  • stator support 270 is integrally formed with the stator core assembly 61 by insert molding
  • stator support 270 and the bolt are manufactured separately from the stator core assembly 61 by using a resin or metal material.
  • the fastening structure can also be applied.
  • the stator 60 according to the present invention may be configured by assembling a plurality of stator core assemblies 61 configured using a plurality of split cores in an annular shape as shown in FIG. 5, as shown in FIG. 6. have.
  • stator cores to which the coils 66 and 68 are wound are arranged to have an annular arrangement, and thus, the plurality of split core type stator cores 62 are connected to each other.
  • the present invention is not limited to this, and it is also possible that the stator core is composed of an integral or partially split core.
  • the split core type stator core 62 has the advantage that the coil winding can be easily manufactured at low cost using a low cost general purpose winding machine as compared with the integral stator core, and it is possible to reduce the loss of the core material.
  • one divided stator core may be used for each tooth, or several teeth, for example, three teeth may be manufactured as one divided stator core and assembled.
  • three teeth are divided into one split stator core when the coil is wound continuously in three teeth for one phase of U, V, and W. It is also preferable to produce with.
  • the split core type stator core 62 is disposed at an outer side as shown in FIGS. 5 to 7, and includes a first tooth part 312 on which the first coil 66 is wound, and opposite and inner sides of the first tooth part 312.
  • the first coil 66 wound around the first tooth portion 312 of the stator core 62 to drive the outer rotor 50 and the inner rotor 40 constitutes the outer stator.
  • the second coil 68 wound around the second tooth portion 310 of the stator core 62 forms an inner stator to form a double stator.
  • stator cores are separated for each slot to form a plurality of split-core stator cores 62, but the outer cores are separated based on the annular back yoke.
  • the stator core for stator and the stator core for inner stator may be separated and manufactured, and then assembled.
  • a drive signal is individually applied from the first and second drivers 530 and 540 to the first coil 66 constituting the outer stator and the second coil 68 constituting the inner stator, thereby The rotor 50 and the inner rotor 40 are driven respectively.
  • the first driving signal is applied to the first coil 66 and the second driving signal is applied to the second coil 68
  • the outer rotor 50 is applied.
  • the inner rotor 40 is rotated when the driving signal is applied to the second coil 68 only, and the outer rotor 50 when the driving signal is simultaneously applied to the first coil 66 and the second coil 68.
  • the inner rotor 40 are rotated at the same time.
  • a through hole 332 is formed in the center of the partition 314 and may be used for bolting for integration with the stator support 270.
  • a first flange portion 318 disposed to face the first magnet 52 is formed at an end of the first tooth portion 312, and a second magnet 42 is formed at the end of the second tooth portion 310.
  • a second flange portion 316 is disposed to face each other.
  • the first flange 318 and the second flange portion 316 are inwardly and inwardly curtailed to correspond to the first magnet 52 of the outer rotor 50 and the second magnet 42 of the inner rotor 40, 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 and the first magnet 52 and the second magnet 42 are close. Can be maintained.
  • the coupling parts 320 and 322 have a structure in which adjacent stator cores 62 are directly connected to 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 inserted into the coupling groove 320 to assemble, a plurality of split stator cores 62 are arranged in an annular shape and have a structure directly connected to each other.
  • the driving motor 140 of the present invention forms a first magnetic circuit (L1) between one side (that is, the inner stator) of the stator 60 to which the inner rotor 40 and the first coil 66 are wound, 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 first back yoke 44 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 52 and the second back yoke 54 of the S pole.
  • the first and second magnetic circuits L1 and L2 may U, V, W for each of the first and second coils 66 and 68 wound around the first and second tooth portions 310 and 312.
  • One-winding coil method for winding in different phases, U, V, W every two teeth Winding coil method for winding in different phases, U, V, W for every three teeth It can be changed according to the three winding coil method and the driving method of winding by different.
  • the output of the inner rotor 40 is transmitted to the input inner shaft 30, and the output of the outer rotor 50 is the input outer shaft 20. It has a structure that is passed to
  • the full automatic washing machine requires a higher high torque drive to drive the washing tub 120 having a larger contact area with the laundry and the washing water than the pulsator 130 having a small contact area with the laundry and the washing water.
  • a larger torque outer rotor 50 has a higher torque output than a smaller diameter inner rotor 50.
  • the high torque output generated from the outer rotor 50 having a large diameter to drive the washing tub 120 is input to the outer shaft 20.
  • the low torque output generated from the inner rotor 40 of the small diameter is transmitted to the washing tank 120 through the ring gear 72 and the output outer shaft 22 of the planetary gear device 70.
  • the torque is converted while passing through the sun gear 74, the planetary gear 78, and the carrier 76 of the inner shaft 30 and the planetary gear device 70 so that an output of high torque is output through the output inner shaft 32.
  • the driving of the washing tank 120 which requires a relatively high torque drive 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.
  • the stator 60 prepares the plurality of stator core assemblies 61 using the plurality of split core type stator cores 62, and then the plurality of stator core assemblies 61.
  • the combination with the stator support 270 is illustrated that the number of slots of the outer stator and the inner stator is manufactured in the same configuration is set to each other, but the present invention is not limited thereto and can be variously modified.
  • the output having the low speed and high torque rotation characteristics is finally passed through the planetary gear device 70 using the output of the inner rotor 40. It is desirable to set the number of slots of the inner stator to the maximum possible.
  • FIG 8 is an axial sectional view of the washing machine driving apparatus according to the second embodiment of the present invention.
  • the washing machine driving device 150a is mounted at the lower portion of the outer tub 110 and has a high speed from the inner rotor 40 and the outer rotor 50 so as to rotationally drive the pulsator 130 and the washing tub 120.
  • the high-speed, low-torque driving motor 140 of the double rotor-double stator method generating the torque of the low torque and the inner rotor 40 and the outer rotor 50 of the driving motor 150 are provided.
  • a planetary gear device 70 which is a torque converter for decelerating (torque conversion).
  • the washing machine driving device 150a according to the second embodiment is the same as the washing machine driving device 150 of the first embodiment in that it includes a double rotor-double stator driving motor 140 and a planetary gear device 70. Do.
  • a stator support for supporting the stator 60 in the drive motor 140 has a plurality of stator core assemblies 61 arranged in an annular shape in the first embodiment and the outer circumferential portion of the outer tank It is fixed to 110, but has a structure in which a through hole is formed therein, but in the second embodiment has a structure in which a support is formed in place of the through hole therein.
  • the stator support 200 includes an outer stator support 210 disposed outside the stator core assembly 61 and an inner stator support 211 disposed inside the stator core assembly 61. .
  • the outer stator support 210 is integrally formed by insert molding and is bent in two stages at the outer core fixing portion 212 and the outer core fixing portion 212 connected to the outer surfaces of the plurality of stator core assemblies 61.
  • the first connecting member 214 extended to surround the outer rotor 50 inside, and bent at a right angle from the first connecting member 214 and then extended in a radial direction to be fixed to the outer tub 110 by bolts 280. It includes the outer tub fixed portion 216.
  • the inner stator support 211 is formed integrally by insert molding and is connected to the inner surfaces of the plurality of stator core assemblies 61, and an inner core fixing part 213 and two stages of the inner core fixing part 213.
  • the second connecting member 215 is bent to extend to surround the inner rotor 40 and the second connecting member 215 is bent at a right angle from the second connecting member 215 and then extended in the center direction to mount the first bearing 26. Bearing mounting portion 217.
  • the first bearing 26 As the first bearing 26 is installed in the bearing mounting portion 217 of the inner stator support 211, the first bearing 26 may rotatably support the input outer shaft 20, and the driving motor 140 and the planetary gear device 70 may be rotated. ) Can be improved, and a separate bearing housing for mounting the first bearing 26 is unnecessary, thereby reducing the number of parts and simplifying the structure.
  • an inner stator support 211 having a first bearing 26 is disposed between the inner rotor 40 and the outer rotor 50 to rotatably support the planetary gear device 70, thereby washing and rinsing. Even when the inner rotor 40 and the outer rotor 50 rotate in opposite directions in the stroke, stable support is possible. Therefore, the noise generation factor is reduced by the stable support of the drive motor 140 and the planetary gear device 70.
  • the outer stator support 210 may be integrally provided with a connector (not shown) for applying the first and second driving signals to the first coil 66 and the second coil 68 from the control unit.
  • the inner end of the outer rotor support 56 is coupled to the input outer shaft 20 to transfer the output of the outer rotor 50 to the ring gear 72, but in the second embodiment the outer rotor support
  • the inner end of the cylinder 56 has a cylindrical coupling structure coupled to surround the input outer shaft 20 and the ring gear 72, and can be engaged with a wide contact area of the bottom and the inner circumference of the cylinder.
  • the inner end of the outer rotor support 56 may be prevented from being separated from the input outer shaft 20 by the one bearing 26 to serve as a stopper for fixing. Therefore, the fastening of the first fixing nut 34 as in the first embodiment can be omitted.
  • the outer rotor support 56 of the outer rotor 50 is coupled to the ring gear 72 so that the output (that is, rotational force) of the outer rotor 50 is directly transmitted. Is the most preferred structure.
  • a metal connecting plate 48 for connecting the inner rotor support 46 to the input inner shaft 30 is integrally formed by insert molding on the inner surface of the inner rotor support 46.
  • the stator support 200 is provided with a protector 218 for protecting the inner rotor 40 which is rotated.
  • the protector 218 preferably extends along the axial direction such that the second fixing nut 36 for fixing the inner rotor 40 to the input inner shaft 30 is not exposed at the outer core fixing part 212. Do.
  • the protector 218 When the protector 218 is provided, such as the washing machine driving device 150a according to the second embodiment, the interference between the rotor and other adjacent parts can be prevented, and accordingly, other parts can be installed at positions close to the driving motor. It can improve space utilization.
  • the output of the inner rotor 40 of the driving motor 140 is transmitted to the sun gear of the planetary gear device 70 through the input inner shaft 30.
  • the output of the outer rotor 50 is applied to the ring gear 72 of the planetary gear device 70 directly or through the input outer shaft 30, but the present invention is not limited thereto. It may be changed as in the third embodiment shown in FIG. 12.
  • FIG 9 is an axial sectional view of the washing machine driving apparatus according to the third embodiment of the present invention.
  • the washing machine driving device 150b includes a double rotor-double stator driving motor 140b generating first and second rotational powers, and the first and second rotations.
  • the planetary gear device 70 includes a planetary gear device 70 that receives power and generates first and second outputs required for a washing stroke and a dehydration stroke of the washing machine.
  • the drive motor 140b has an output (first rotational power) of the outer rotor 50 through the input inner shaft 30 of the planetary gear device 70. After being applied to the sun gear 74, it is decelerated while passing through the planetary gear 78 and transmitted to the pulsator 130 as the first output through the output inner shaft 32, and the output of the inner rotor 40 (second Rotational power) is applied to the ring gear 72 of the planetary gear device 70 through the input outer shaft 20 and then transmitted to the washing tank 120 through the output outer shaft 22 as a second output without deceleration.
  • first rotational power first rotational power
  • the driving motor 140b includes a stator support 200 for supporting the stator 60 and includes an outer stator support and an inner stator support, and includes a bearing mounting portion of the inner stator support. It is also possible to install the first bearing to rotatably support the input inner shaft 30 and the planetary gear device 70.
  • washing machine driving device 150b In the washing machine driving device 150b according to the third embodiment, the same parts are assigned to the same parts as the first and second embodiments, and detailed description thereof will be omitted.
  • the washing tub 120 and the inner rotor 40 are connected through the ring gear 72 of the planetary gear device 70, and the pulsator 130 and the outer rotor ( 50 is connected to the sun gear 74 and the planetary gear 78 of the planetary gear device 70.
  • the rotational force of the inner rotor 40 is transmitted to the pulsator 130, and the rotational force of the outer rotor 50 is transmitted to the washing tank 120.
  • the rotational force of the outer rotor 50 is transmitted to the pulsator 130, and the rotational force of the inner rotor 40 is transmitted to the washing tank 120.
  • the inner and outer rotor supports 46 and 56 of the first and second embodiments have a two-stage bent structure, but the inner and outer rotor supports 46a and 56a of the third embodiment have a circular plate shape.
  • FIG. 10 is a block circuit diagram of a washing machine control apparatus according to the present invention
  • Figure 11 is a flow chart showing the overall washing machine control method according to the present invention.
  • a washing machine control apparatus includes a first driver 530 for generating a first driving signal applied to a first coil 66 wound around an inner stator core 621, and an outer stator core.
  • the second driver 540 for generating a second driving signal applied to the second coil 68 wound on the 631, and the first driver 530, the second driver 540, and the entire washing machine are controlled.
  • a control unit 500 for generating a first driving signal applied to a first coil 66 wound around an inner stator core 621, and an outer stator core.
  • 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, and has a built-in or separately provided PWM control unit for generating a PWM control signal.
  • the drive motor 140 of the present invention is composed of a BLDC motor of a twin-force structure composed of a double rotor-double stator, for example, the motor control is performed in U, V, W three-phase driving method.
  • the first and second coils 66 and 68 of the stator 60 also consist of U, V, and W three-phase coils, respectively.
  • the stator 60 of the present invention includes an outer stator having a first coil 66 and an inner stator having a second coil 68 to drive the outer rotor 50 and the inner rotor 40, respectively. Form a double stator.
  • the inner stator and the inner rotor 40 rotated by the inner stator form the inner motor
  • the outer stator and the outer rotor 50 rotated by the outer stator form the outer motor.
  • the outer motor and the inner motor are designed to be controlled by the BLDC method, respectively, and the first and second drivers 530 and 540 are driven by, for example, six-step drive control.
  • the first and second drivers 530 and 540 each include an inverter composed of three pairs of switching transistors connected in a totem pole structure, and the U, V, and W three-phase outputs of the respective inverters are formed of the first and second coils. 66, 68) is applied to the U, V, W three-phase coil.
  • the control unit 500 is, for example, based on the rotational position of the outer rotor 50 and the inner rotor 40 detected from the first and second rotor position sensors 510 and 520, each of which consists of a Hall sensor.
  • PWM control signals are applied to the first and second drivers 530 and 540, and the first and second drivers 530 and 540 receive the control signals and output U, V, and W three-phase outputs to the first and second coils.
  • the outer rotor 50 and the inner rotor 40 are rotationally driven by applying to the U, V, and W three-phase coils of 66 and 68.
  • the control unit 500 has a program for executing various washing courses in the memory device, and all washing courses basically include washing strokes, rinsing strokes, and dehydrating strokes. Is included before and after, depending on the washing course is performed repeatedly at least one of the washing stroke, rinsing stroke, dehydration stroke.
  • the washing machine according to the present invention is first turned on in step S200.
  • control unit 500 determines whether to perform the current washing or rinsing stroke through the washing control signal input according to the user's selection (S202).
  • the control unit 500 detects the weight (load amount) of the laundry (not shown), sets the water level step according to the detected laundry weight (load amount), and supplies water. To start.
  • the washing administration step is set according to the washing course set by the user.
  • the set washing administration starts.
  • the inverters of the first driver 530 and the second driver 540 are driven in accordance with the set washing or rinsing stroke (S204).
  • the first driver 530 and the second driver 540 generates three-phase AC power, and the generated three-phase AC power is the first coil 66 and the second coil 68 of the stator 60.
  • the washing is performed by any one of a variety of washing courses as it is applied to the selective, independently generated and applied.
  • control unit 500 determines whether to perform the current dehydration stroke in the state where all the rotors are stopped, or if it is not the washing stroke or the rinsing stroke in step S202, It is determined whether or not (S208).
  • the control unit 500 drives only the outer rotor 50 or rotates the outer rotor 50 and the inner rotor 40 in the same direction / same RPM.
  • the control unit 500 drives only the outer rotor 50 or rotates the outer rotor 50 and the inner rotor 40 in the same direction / same RPM.
  • control unit 500 determines whether the execution time of the dehydration stroke has elapsed (S214), and when the time of the dehydration stroke has elapsed, the washing operation of the laundry is terminated.
  • control unit 500 drives the inverters of the first driver 530 and the second driver 540 according to the washing or rinsing stroke.
  • the first driver 530 and the second driver 540 generates three-phase AC power
  • the generated three-phase AC power is the first coil 66 and the second coil 68 of the stator 60
  • the outputs of the inner rotor 40 and the outer rotor 50 driven by the first coil 66 and the second coil 68 of the stator 60 provide rotational forces having high speed and low torque characteristics, respectively. .
  • the input outer shaft 20 connected thereto is fixed while the ring gear 72 connected thereto is also fixed.
  • the first input (i.e., high speed, low torque characteristic input) of the first RPM is input from the inner rotor 40 to the sun gear 74 and the sun gear 74 is rotated
  • the plurality of planetary gears 78 rotate. While the revolution along the inner circumference of the ring gear 72 is made, the carrier 76 connected to the rotary shaft 78a of the planetary gear 78 is also rotated in the same direction as the rotational direction of the inner rotor 40. In this case, the rotation speed of the carrier 76 is decelerated according to the gear ratio of the sun gear and the ring gear, so that the first output of the second RPM having the low speed and high torque characteristics is generated from the carrier 76.
  • the pulsator 130 receives a low speed and high torque output to perform a washing or rinsing process with high efficiency.
  • the torque is increased to satisfy the low speed and high torque characteristics required in the washing stroke and the rinsing stroke.
  • the speed ratio (ie, the reduction ratio) obtained from the carrier 78 of the planetary gear device 70 is determined as in Equation 1 below.
  • z r is the number of teeth of the ring gear and z s is the number of teeth of the sun gear.
  • the method of applying the electromagnetic brake to the outer rotor 50 and the ring gear 72 by the second driver 540 may be, for example, from the second driver 540 to the second coil 68 of the stator 60.
  • a method of stopping the ring gear 72 connected to the outer rotor 50 by cutting off the applied three-phase AC power or by shorting the second coil 68 may be used.
  • the ring gear 72 when performing the washing or rinsing stroke, instead of fixing the ring gear 72 connected to the outer rotor 50 by the electromagnetic brake, the ring gear 72 is controlled to be output through the carrier 76.
  • the shift amount (preferably the deceleration amount) of the first output of the planetary gear device 70 can be controlled.
  • the output of the outer rotor 50 is applied as a second input to the ring gear 72 of the planetary gear device 70 through the input outer shaft 20.
  • the second input applied to the ring gear 72 may be used as a control input for controlling the deceleration amount of the first output of the planetary gear device 70.
  • the planetary gear device output through the carrier 76 ( The first output of 70) is reversed in rotational direction with the first input and an output of RPM decelerated by 1/5 is obtained.
  • the transmission ratio (ie, the reduction ratio) of the carrier output is set to 5: 1, for example, when the first input 250 RPM and the second input (-) 125 RPM , Carrier output is obtained (-) 50RPM.
  • the first output is applied to the electromagnetic brake without changing the rotational direction of the first input.
  • the output of the decelerated RPM is obtained at a reduction ratio smaller than the reduction ratio (5: 1) when the second RPM of the second input is zero. For example, when the first input is 800 RPM and the second input is 200 RPM, the carrier output is 320 RPM.
  • the outer portion is driven by the electromagnetic brake.
  • RPM and torque of the first output can be controlled by controlling the forward RPM of the rotor 50 or by rotating the outer rotor 50 forward or forward.
  • the transmission ratio (ie, the reduction ratio) of the output of the carrier 76 is 5: 1 in the planetary gear device 70 of the sun gear input / carrier output structure, the first input to the sun gear 74 from the inner rotor 40 is performed.
  • the RPM of the first output of the planetary gear device 70 is obtained at 200 RPM when the ring gear 72 is at a stop state, and when the 10 RPM rotational force is applied to the ring gear 72 in the forward direction, the planetary The RPM of the first output of the gear unit 70 is about 208 RPM, and when (-) 10 RPM rotational force is applied to the ring gear 72 in the reverse direction, the RPM of the first output of the planetary gear device 70 is about 190 RPM. Obtained.
  • the minimum rotation is performed in the same direction as the rotation direction of the sun gear 74, for example, about 10 RPM, without the ring gear 72 being fixed, or the ring gear 72 is the sun gear 74, that is,
  • the first of the planetary gear device 70 is output through the carrier 76 by driving the outer rotor 50 in the reverse direction so that the reverse rotation is about (10) RPM in the direction opposite to the rotation direction of the inner rotor 40
  • Decrease amount can be finely controlled by increasing or decreasing the RPM of the output.
  • a second applied to the ring gear 72 as a control input.
  • the second RPM of the input is preferably set smaller than the first RPM of the first input input to the sun gear 74.
  • the second input applied to the ring gear 72 may be in the same or opposite direction as the first input input to the sun gear 74.
  • the second input applied to the ring gear 72 is rotated in the opposite direction to the first input input to the sun gear 74, and the second RPM of the second input applied to the ring gear 72 is the sun gear 74.
  • the carrier output is zero (RPM), that is, the largest deceleration is achieved.
  • the carrier output is 0 RPM.
  • the second input applied to the ring gear 72 is rotated in the direction opposite to the first input input to the sun gear 74, and the second RPM of the second input applied to the ring gear 72 is the sun gear 74. If the carrier output is set smaller than 1/4 of the first RPM of the first input inputted to the first input, the carrier output is rotated in the same direction as the first input inputted to the sun gear 74 and is larger than when the ring gear 72 is fixed. You will get a decelerated output.
  • the carrier output is 50.4 RPM.
  • the second input applied to the ring gear 72 is rotated in the direction opposite to the first input input to the sun gear 74, and the second RPM of the second input applied to the ring gear 72 is the sun gear 74.
  • the carrier output is rotated in a direction opposite to the first input input to the sun gear 74 while the ring gear 72 is fixed. A larger decelerated output can be obtained than in the state.
  • the planetary gear device 70 receives the high speed, low torque characteristic input to the ring gear 72 and the high speed required in the dehydration stroke through the carrier 78 without deceleration (torque conversion).
  • the second output satisfies the low torque characteristic.
  • the sun gear 74 is set to an unfixed state, that is, a state in which free rotation is possible, or the sun gear 74. It is necessary to set to rotate in the same direction, the same RPM as the ring gear 72.
  • a driving signal is applied from the second driver 540 to the second coil 68 of the outer stator to forward the outer rotor 50 (ie, the ring gear 72) to 1000 RPM of high speed and low torque characteristics.
  • the inner rotor 40 is freely rotated because the drive signal is not applied to the first coil 66, or the inner rotor 40 is rotated in the forward direction at 1000 RPM in the same manner as the outer rotor 50.
  • the rotational force of the high speed and low torque characteristics is transmitted only to the ring gear 72 of the planetary gear device 70 or the rotational force of the first input of the high speed and low torque characteristics to the ring gear 72 and the sun gear 74 in the same manner.
  • the ring gear 72 or the planetary gear device 70 rotatably supported by the first to fourth sleeve bearings 80, 82, 84, 86 and the first and second bearings 26, 28. The whole will rotate at 1000 RPM without deceleration.
  • the rotational force of the high speed and low torque characteristics of the ring gear 72 is transmitted to the washing tank 120 through the output outer shaft 22 to perform a dehydration stroke, or according to the rotation of the entire planetary gear device 70,
  • the low torque torque is transmitted to the washing tank 120 and the pulsator 130 through the output outer shaft 22 and the output inner shaft 32 to perform a dehydration stroke.
  • the first input of the high speed and low torque characteristics of the outer rotor 50 and the inner rotor 40 is transmitted from the planetary gear device 70 to the washing tank 120 and the pulsator 130 without deceleration (torque conversion).
  • the dehydration stroke is performed with high efficiency.
  • the carrier output is in the same direction as the ring gear input and is dependent on the RPM of the ring gear, Increasing RPM than the sun gear RPM in proportion to the RPM is obtained, and when the ring gear RPM is smaller than the sun gear RPM, the carrier RPM is in the same direction as the ring gear input and the RPM decelerating than the sun gear RPM in proportion to the RPM of the ring gear is obtained.
  • the carrier output is in the same direction as the ring gear input and is dependent on the RPM of the ring gear.
  • an increase in the speed of the sun gear RPM is obtained, and when the ring gear RPM is smaller than the sun gear RPM, the carrier RPM is in the same direction as the ring gear input and is larger than the ring gear RPM and decelerated in the sun gear RPM to obtain an RPM smaller than the sun gear RPM. Lose.
  • the planetary gear device 70 is supported by the first and second bearings 26 and 28 capable of bidirectional rotation, the rotation direction and the rotation speed of the pulsator 130 and the washing tank 120 may be adjusted. Various controls can be made and various laundry streams can be formed.
  • the pulsator 130 is rotationally driven in one direction, for example, in a forward direction, that is, in a clockwise direction CW by driving the inner rotor 40. After the motor ON time is maintained for the set time, the motor has a predetermined OFF time for changing the direction.
  • a method of raising the inner rotor 40 to 800 RPM, which is a target RPM may include an overshooting drive as shown in FIG. 13, a sequential starting method of gradually increasing the RPM according to the time as shown in FIG. 14, and a multi-step ramp as shown in FIG. 16.
  • One of the starting methods, such as ramp-up driving, may be applied.
  • the inner rotor 40 is stopped to have a predetermined OFF TIME for changing the direction.
  • the method of stopping the inner rotor 40 may be selected from a method of stopping driving power to the inner stator and a method of applying an electromagnetic brake to the inner rotor 40 by using the first driver 530. have.
  • the rolling of the upper laundry is caused to occur.
  • the laundry and detergent can be mixed and at the same time a strong three-dimensional solid water stream is formed.
  • the washing tank 120 driven by the outer rotor 50 is driven at a different cycle from the drive of the pulsator 130.
  • the washing tank 120 remains stopped until immediately before the driving time of the pulsator 130, that is, the motor ON time, and starts before the driving of the pulsator 130 ends.
  • the drive is performed for a short period after the driving of the pulsator 130 ends.
  • the reverse driving of the outer rotor 50 for rotating the washing tank 120 in the reverse direction is made to a minimum, for example, the driving is performed at ( ⁇ ) 50 RPM.
  • the inner rotor 40 when the inner rotor 40 is driven by the inner stator to drive the pulsator 130 in the forward direction, that is, clockwise (CW) for a predetermined period, the laundry and the washing water inside the washing tank 120 are rotated. Simultaneously with this, a waterfall-like flow that rises along the wall surface of the washing tank 120 by the centrifugal force and then falls to the center part is generated.
  • the movement of the laundry and the wash water is performed by mixing and washing the laundry and the detergent by friction and potential energy when the rotation and the drop are made.
  • the washing tank 120 is also rotated in the reverse direction.
  • a second stream of water flowing in an opposite direction that is, counterclockwise (CCW)
  • CCW counterclockwise
  • RPM for example, ( ⁇ ) 50 RPM
  • the large vortices generated by the mutually opposite driving forms a strong three-dimensional three-dimensional washing water stream having high cleaning degree.
  • the pulsator 130 is driven to rotate in the reverse direction, that is, counterclockwise (CCW) for driving in the opposite direction, and the motor ON TIME for a preset time.
  • the washing machine 120 has a predetermined stop time (OFF TIME) for the change of direction, and the washing tank 120 is also started before the reverse driving of the pulsator 130 ends and a short period of time after the driving of the pulsator 130 ends. While rotating in the forward direction, that is, clockwise (CCW), a large vortex with high cleaning degree is generated by driving in the opposite direction.
  • the motor ON time may be set, for example, in the range of 3.0 seconds to 10 seconds, and the stop time may be set in the range of 0.5 seconds to 1.5 seconds.
  • the control unit 500 drives the first driver 530 to apply the three-phase AC power to the first coil 66 so that the inner rotor 40 is forward, that is, a clock.
  • the pulsator 130 is rotated in the forward direction by rotating in the direction CW (S81).
  • the method of rotating the inner rotor 40 to a predetermined RPM, for example, 800 RPM, is an overshooting drive as shown in FIG. 13, a sequential starting method of gradually increasing the RPM according to a time as shown in FIG. 14, and a multi-step ramp of FIG. 16.
  • One of the starting methods, such as ramp-up driving, may be applied.
  • the rotation speed of the inner rotor 40 (ie, the pulsator) is maintained at 800 RPM for the first predetermined time T1 (S82).
  • the pulsator 130 is rotated in one direction, the laundry and the washing water inside the washing tank 120 are rotated and at the same time ascending the wall surface of the washing tank 120 by centrifugal force and descending to the center (free fall).
  • the waterfall is moved, the laundry rotates and free falls repeatedly, and washing is performed by free fall due to friction and potential energy.
  • the control unit 500 drives the second driver 540 to apply the three-phase AC power to the second coil 68 so that the outer rotor 50 Rotate the washing tank 120 in the reverse direction by rotating (50) RPM in the reverse direction, that is, counterclockwise (CCW) (S83).
  • the washing tank is filled with a lot of laundry and water, and the weight and volume of the washing tank is higher than that of the pulsator. Therefore, a high torque drive is required at the initial startup, and the outer rotor driving the washing tank is disposed outside the inner rotor. Compared with the rotor, the driving torque is large. Therefore, the washing tub can be sufficiently rotated by the torque of the outer rotor.
  • the reverse rotation is applied to the outer rotor 50 to minimize the energy consumption, while driving in the opposite directions by the driving force of the twin power. The effect can be obtained.
  • step S86 it is determined whether the turn-on time of the outer rotor 50, that is, the ON TIME of the outer rotor has elapsed (S86).
  • the ON time of the outer rotor has passed as a result of the determination, the process proceeds to step S87 of stopping the outer rotor 50 to stop the washing tank 120.
  • step S97 when the preset stop time has elapsed, it is determined whether the inflated stroke is scheduled (S98). If the inflated stroke is scheduled, the process proceeds to step S99 to perform the inflated stroke. Proceed.
  • Foaming may occur when washing water streams are generated by mutually opposite driving using twin-force forces. Therefore, if snagging is detected or snagging is anticipated, a bulging stroke is performed. The inflated stroke releases the tangling of the laundry by rotating the pulsator 130 and the washing tank 120 at the same speed in the same direction.
  • the washing stroke completes the one cycle washing stroke including the steps (S81 to S97), and the driving of two cycles according to the washing course proceeds in the same manner as the one cycle described above, or another method using a single force or a twin force.
  • the washing water flow forming method may be combined.
  • washing time is ended (S100). If the washing time is ended, the washing process is terminated and proceeds to a subsequent processing stroke. If the washing time is not finished, the process proceeds to step S81. Repeat the procedure.
  • the planetary gear device 70 employs four planetary gears 76, as shown in FIG. 4B, and sets the number of gear teeth to 15, ring gear: 64, and planetary gear: 24. ,
  • the reduction ratio (shift ratio) is 5: 1.
  • the method for forming the mutually opposite washing water stream according to the first embodiment of the present invention basically, the pulsator 130 in one direction, for example, the forward direction That is, after rotationally driving in the clockwise direction CW, maintaining the motor ON TIME for a preset time, the motor has a predetermined OFF TIME for changing the direction.
  • the graph P shows the RPM of the inner rotor 40 for driving the pulsator 130
  • the graph S shows the RPM of the outer rotor 50 for driving the spin basket. It is shown.
  • the pulsator 130 is rotationally driven in the other direction, for example, the reverse direction, that is, the counterclockwise direction (CCW), and maintains the motor ON TIME for a preset time, and then It has a predetermined OFF TIME.
  • the reverse direction that is, the counterclockwise direction (CCW)
  • Example 1 the driving of the pulsator 130 is an example in which the motor ON time is set to 3 seconds and the stopping time is set to 1 second, and the driving of the washing tank 120 is set to about 1 second. do.
  • the motor ON TIME can be set, for example, in the range of 3 seconds to 10 seconds, and the OFF TIME can be set in the range of 0.5 seconds to 1.5 seconds.
  • the washing tank 120 is driven at a different cycle from the driving of the pulsator 130.
  • the washing tank 120 maintains the stopped state until the driving time of the pulsator 130, that is, the motor ON time ends, and then rotates in the opposite direction to the rotation direction of the pulsator 130. .
  • the inner rotor 40 When the inner rotor 40 is rotated in the forward direction, that is, clockwise (CW), for example, 1,000 RPM, the inner rotor 40 is decelerated (torque conversion) to 5: 1 while passing through the planetary gear device 70 and the pulsator 130 is Rotation is performed at a rotational speed of 200 RPM.
  • the second driver 540 fixes the outer rotor 50 by the electromagnetic brake, the ring gear 72 is fixed to the ring gear 72 and the washing tub 120 while the input outer shaft 20 connected thereto is fixed. ) Remains fixed.
  • the inner rotor 40 is driven at 1,000 RPM by using the overshooting method to strongly start the initial driving of the pulsator 130, and then maintains the state of 800 RPM for a predetermined time.
  • Embodiment 1 of the present invention when the pulsator 130 is rotated for at least 3 seconds and then stopped, the laundry and the wash water are continuously rotated by inertia. That is, when the electromagnetic brake is applied to the inner rotor 40 by using the first driver 530 so that the pulsator 130 is stopped in the shortest possible time, a strong three-dimensional water flow is formed.
  • the inner rotor 40 is overshooted from 800 RPM to 1,000 RPM before the pulsator 130 is stopped, and then the stop is performed. Can be formed.
  • the washing tub 120 which was stopped about 0.5 seconds before the driving time of the pulsator 130, that is, the motor ON time, is ended in a direction opposite to the rotation direction of the pulsator 130.
  • the reverse driving of the washing tank 120 is continued for at least about 0.5 seconds after the driving of the pulsator 130 is stopped to continue the vortex generation.
  • the reverse rotation of the washing tank 120 drives the outer rotor 50 in the opposite direction to the inner rotor 40, so that the washing tank is reduced without deceleration through the input outer shaft 20 and the ring gear 72. Is passed to 120.
  • the planetary gear device 70 is decelerated from the carrier 78 to pulsator 130. The RPM of the output applied to is further reduced, and conversely, as the torque is increased, a stronger forward rotational force is applied to the laundry and the wash water.
  • the outer rotor 50 is rotated in the opposite direction to the inner rotor 40.
  • the pulsator 130 is decelerated (torque conversion) to 5: 1 while passing through the planetary gear device 70, and the pulsator 130 rotates at a low speed and high torque at a rotation speed of 160 RPM. This is done.
  • the rotation of one direction at the center of the laundry and the washing water is strongly driven at high torque using the pulsator 130, and the washing tank 120 is driven before the end of the driving of the pulsator.
  • Example 14 a method of forming mutually opposite washing water streams according to Example 2 is similar to Example 1 illustrated in FIG. 13.
  • the inner rotor 40 is overshooted from 800 RPM to 1,000 RPM before the initial driving and the end of the motor ON TIME, and then the stop is performed.
  • the overshoot driving is not performed.
  • the washing tank 120 is driven in a direction opposite to the rotational direction of the pulsator 130 to generate the vortex within the range of about 1 second during the initial driving of the motor ON time and before the end of the vortex.
  • the driving method is changed to increase the number of occurrences once more.
  • the pulsator 130 is rotated at 800 RPM in the forward direction according to the driving of the inner rotor 40, and at the same time, the outer rotor 50 is driven in the reverse direction for 1.0 second, thereby driving the washing tank 120 in the reverse direction ( ⁇ ).
  • 40 is driven in the reverse direction for 1.0 second to rotate the washing tank 120 in the reverse direction (-) 50 RPM.
  • an electromagnetic brake is applied at 800 RPM, for example, with a deceleration of RPM over 0.3 seconds.
  • the stop time is relatively OFF. TIME) is preferably set longer.
  • the method of forming the opposite washing direction of the water stream according to the second embodiment after the one-cycle washing stroke of the forward rotation, stop, reverse rotation, and stop of the pulsator 130 is completed, the same washing stroke as the one-cycle washing stroke is applied to the washing course. It can be applied repeatedly according to the above, and it is also possible to combine different types of washing water flow and inflated stroke.
  • Example 2 after the washing cycle of one cycle is completed, the washing water flow method of varying the speed is applied to the drive RPM of the pulsator 130 of the motor ON time (ON TIME) during the washing cycle of the second cycle.
  • Example 3 the method of forming mutually opposite washing water streams according to Example 3 is generally similar to those of Examples 1 and 2.
  • Embodiment 3 Differences from Embodiment 3, Embodiment 1 and Embodiment 2 differ from that of the inner rotor 40 instead of overshooting the inner rotor 40 from 800 RPM to 1,000 RPM before the initial drive and the end of the motor ON TIME. ) To increase the rotational speed and driving torque for driving the pulsator 130 by increasing the rotational speed up to 1,000 RPM.
  • the motor ON time is set shorter than the first and second embodiments, and the OFF time is set longer.
  • the motor ON TIME is set to 3 seconds and the stopping time (OFF TIME) is set to 1.5 seconds, the drive for the washing tank 120 is set to about 1 second.
  • the OFF TIME is also assigned to the electronic brake 1.5 seconds longer than the first and second embodiments by adding freewheeling and starting preparation period.
  • the free wheeling is to release all control so that the inertia rotation is performed after the electromagnetic brake of the pulsator 130.
  • control is made so that the RPM of the pulsator 130 is decelerated with at least two inclined slopes to reach the stopped state in consideration of the stop being made at a high rotational speed of 200 RPM.
  • the rapid stop is performed at a high rotational speed of 200 RPM, and the washing tank 120 is the embodiment described above.
  • the pulsator 130 is rotated in the reverse direction ( ⁇ ) 50 RPM starting from before the end of the drive and after the end of the drive.
  • the rotation of the one direction at the center of the laundry and the washing water is driven shortly strongly using the pulsator 130, and then before the end point of the pulsator driving while rapidly braking the pulsator.
  • the washing tank 120 in the reverse direction to induce a reverse water current from the outer periphery of the laundry and wash water can form a strong vortex.
  • the driving time of the pulsator 130 is minimized, thereby minimizing power consumption and forming a three-dimensional three-dimensional washing water stream having strong washing power, thereby increasing washing efficiency.
  • Example 4 a method of forming mutually opposite washing water streams according to Example 4 is generally similar to those of Examples 1 to 3.
  • the difference between the fourth embodiment and the first to third embodiments is that the initial driving of the inner rotor 40 at the time of initial driving and before the end of the motor ON TIME is performed instead of overshooting from 800 RPM to 1,000 RPM.
  • the rotational speed and driving torque for driving the pulsator 130 were increased.
  • the RPM of the inner rotor 40 is increased to a preset 1,000 RPM in a multi-step ramp-up manner,
  • a strong water flow can be formed by controlling the braking in the shortest time to reach the stop state.
  • one of the well-known starting methods such as the ramp-up starting and the sequential starting method of gradually increasing the RPM over time, may be applied.
  • the motor ON TIME is 4.5 seconds and the OFF TIME is 1.5 seconds.
  • Drive to the washing tank 120 is set to about 1 second.
  • Example 4 it is preferable to set the OFF TIME longer than Examples 1 to 3 in consideration of the stop by the sudden braking of the pulsator 130.
  • the one-way rotation in the center of the laundry and the washing water is driven strongly using the pulsator 130, and then before the end of the pulsator's driving while rapidly braking the pulsator.
  • By driving the washing tank 120 in the reverse direction to induce a reverse water current from the outer periphery of the laundry and wash water can form a strong vortex.
  • the strong braking of the pulsator 130 and the reverse driving of the washing tank 120 to form a three-dimensional three-dimensional washing water stream having a strong washing power to increase the washing efficiency.
  • Example 3 has an operating rate of 67% and Example 4 has an operating rate of 75%.
  • the power consumption is 23 Watts in the Example 3 method with the operation rate of 67%, and the power consumption is 20 Watts in the Example 4 method with the operation rate of 75%.
  • the operation rate may be at least 60%, and preferably at least 67% to increase efficiency while minimizing power consumption.
  • the RPM of the pulsator and the RPM of the washing tank is preferably set larger than 3: 1.
  • the pulsator 130 when the pulsator 130 is driven at a variable speed in the motor starting torque adjustment and rotation maintenance period during the formation of the water flow, it is possible to form a rhythm flow, and to save energy consumption.
  • the rotation RPM of the pulsator 130 by varying the rotation RPM of the pulsator 130 to mix the strong, medium, and weak water flow, such as strong-> medium-> weak-> medium-> weak, etc., high cleaning and rinsing degree can be achieved with less energy. You can expect
  • the stopping method of the motor driving the pulsator and the washing tank has been exemplified by using an electronic brake, but it is also possible to stop using a freewheel method that requires a long stopping time.
  • other well-known methods other than the electromagnetic brake can be used when the motor is stopped.
  • 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 120. Since the inner rotor 40 is started at almost no load, the starting current can be lowered, and thus power consumption can be reduced.
  • the present invention is to reduce the twist of the laundry by appropriately setting the stop time of the pulsator during the forward and reverse rotation, to allow the laundry to spread evenly in the washing tank while rotating, by changing the attitude and position of the laundry Improve the cleaning effect
  • the rhythm flow can be formed by varying the rotational speed of the pulsator 130, and as a result, rhythm washing can be implemented. That is, when the rotational speed of the pulsator 130 is 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.
  • washing method using the washing machine driving apparatuses 150 and 150a according to the first and second embodiments employing the driving motor 140 has been described, but the present invention employs the driving motor 140b.
  • the washing method using the washing machine driving device 150b according to the third embodiment may also be applied in the same manner.
  • the washing machine driving device (150, 150a) is provided with a planetary gear device 70, and the structure to reduce the output of the inner rotor 40 to transfer to the pulsator 130, but
  • the laundry stream forming method of the present invention may be equally applied to a structure in which the planetary gear device 70 is excluded from the washing machine driving devices 150 and 150a when the washing load is small.
  • a BLDC motor having a radial gap type double rotor-double stator structure is used as a driving motor, but a BLDC motor having an axial gap type double rotor double stator structure is used as a driving power source. It can be used as a drive motor, and any drive motor of different structure and different way can be used as long as the power source generates a pair of outputs.
  • the washing machine driving device washes the high-speed, low-torque twin power output generated from the double rotor-double stator drive motors 140 and 140b while passing the planetary gear device 70.
  • the first output satisfying the low speed and high torque characteristics required in the stroke and rinsing stroke and the second output satisfying the high speed and low torque characteristics required in the dehydration stroke are converted into the pulsator 130 and the washing tank 120.
  • the present invention is a combination of a twin-power drive motor and planetary gear device, it is possible to provide a driving force of different characteristics required in the washing and dewatering stroke of the washing machine with high efficiency, and a washing machine driving device capable of forming a variety of washing water flow and its Applied to control, especially fully automatic washing machines.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Power Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Washing Machine And Dryer (AREA)
PCT/KR2016/007983 2015-07-22 2016-07-22 세탁기 구동장치와 이를 구비한 세탁기 및 세탁기 구동방법 WO2017014588A1 (ko)

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US10720197B2 (en) 2017-11-21 2020-07-21 Samsung Electronics Co., Ltd. Memory device for supporting command bus training mode and method of operating the same
KR102022492B1 (ko) * 2018-12-17 2019-09-18 주식회사 엘디티 믹서기용 양방향 동시 회전 칼날 뭉치

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