WO2016122171A1 - Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci - Google Patents

Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci Download PDF

Info

Publication number
WO2016122171A1
WO2016122171A1 PCT/KR2016/000738 KR2016000738W WO2016122171A1 WO 2016122171 A1 WO2016122171 A1 WO 2016122171A1 KR 2016000738 W KR2016000738 W KR 2016000738W WO 2016122171 A1 WO2016122171 A1 WO 2016122171A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
input
drum
ring gear
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/000738
Other languages
English (en)
Korean (ko)
Inventor
김병수
고형환
이병호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amotech Co Ltd
Original Assignee
Amotech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amotech Co Ltd filed Critical Amotech Co Ltd
Publication of WO2016122171A1 publication Critical patent/WO2016122171A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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

Definitions

  • the present invention is a combination of a double rotor-double stator-type twin-power motor and planetary gear device, a drum drive device capable of providing the drum with high efficiency driving force of various characteristics required in the washing and dewatering stroke of the drum washing machine, provided therewith It relates to a drum washing machine and a driving method.
  • Patent Document 1 Conventional drum washing machine, as disclosed in Korean Patent Publication No. 10-1063528 (Patent Document 1), the drum is disposed rotatably inside the tub, the rear end of the tub and the rotating shaft is passed through the center of the back of the tub drum
  • the motor includes a bearing housing fixed to the tub and rotatably supporting the rotating shaft, a stator fixed to the bearing housing, and a rotor disposed at a predetermined gap on an outer circumferential surface of the stator and connected to the rotating shaft. do.
  • the drum washing machine of Patent Document 1 uses a motor including a single rotor-single stator, and when a driving signal is applied to the stator, the rotor is rotated and the drum connected to the rotor and the rotating shaft is rotated to perform washing, rinsing, and dehydration strokes. To wash the laundry.
  • the motor driving method of a conventional drum washing machine is disclosed in Korean Patent Laid-Open Publication No. 10-2007-0066093 (Patent Document 2), when the drum washing machine is operated, it is determined whether the operation information of the drum washing machine is a normal mode or a high speed mode.
  • the square wave motor driving information is read and the square wave driving method is applied to the motor of the drum washing machine.
  • the sine wave motor driving information is read and the sine wave driving method is applied to the motor of the drum washing machine.
  • the RPM of the washing machine and the RPM during the dewatering stroke should be different.
  • the drum washing machine of Patent Literature 2 applies a square wave driving method to a motor during washing and rinsing stroke requiring low speed and high torque characteristics, and applies a sine wave driving method to a motor during a dewatering stroke requiring high speed and low torque characteristics. Since the coil usage is reduced because of the application, there is a problem that the efficiency is reduced during the dehydration stroke.
  • serial or parallel driving methods increase the dewatering RPM by configuring the coil alignment in series in the washing stroke and in parallel in the dehydrating stroke.
  • peripheral circuits are added to increase the circuit, thereby increasing the cost.
  • Patent Documents 1 and 2 there is no suggestion of a drum driving apparatus capable of processing a large amount of laundry with high efficiency, and only a method of increasing the diameter of a motor to increase its size has been commercialized.
  • the single rotor-single stator type single-power motor cannot satisfy the low speed and high torque characteristics in the washing stroke and simultaneously satisfy the high speed and low torque characteristics in the dehydration stroke.
  • the washing stroke and rinsing are performed by separately driving the pulsator and the washing tank using a double rotor-double stator type twin-power motor instead of a single power motor. It is possible to satisfy the characteristics required for administration.
  • the present invention has been made to solve the above problems, the object of which is a combination of a double rotor-double stator drive motor and planetary gear device, which is required in the washing and dewatering stroke of the drum washing machine
  • the present invention provides a drum driving device capable of providing a driving force of various characteristics to a drum with high efficiency and a drum washing machine having the same.
  • Another object of the present invention is to generate a first output that satisfies the low speed and high torque characteristics during the washing stroke, and to generate a second output that satisfies the high speed and low torque characteristics during the dehydration stroke to drive the drum.
  • the present invention provides a drum driving apparatus capable of implementing a washing machine, a drum washing machine having the same, and a drum driving method.
  • the present invention provides a drum driving apparatus using a transmission capable of continuously controlling a deceleration amount by an applied control input, a drum washing machine and a drum driving method including the same.
  • Another object of the present invention is to control the rotation and idle amount of the planetary gear to control the deceleration of the carrier output continuously and smoothly by controlling the ring gear input according to the load of the laundry in the sun gear input-carrier output transmission.
  • the present invention provides a drum driving device capable of reducing vibration and noise, a drum washing machine and a drum driving method including the same.
  • Still another object of the present invention is to use a drum drive device that can realize a high-efficiency drum washing machine by using a combination of a first output having a low speed and high torque characteristic and a second output having a high speed and low torque characteristic according to each stroke. And to provide a drum washing machine having the same.
  • a drum driving apparatus for a drum washing machine is mounted to the rear of the tub, the drive motor of the double rotor-double stator method for generating an independently controllable outer rotor output and inner rotor output; And receiving the outer rotor output as a first input to the sun gear and decelerating it to generate a first output from a carrier, and receiving the inner rotor output as a second input to a ring gear to generate a second output without deceleration, And a planetary gear device configured to apply the first and second outputs generated from the carrier to a drum shaft connected to the drum.
  • the first input applied to the sun gear is decelerated to reduce the speed and high torque from the carrier. It may generate a first output having a characteristic.
  • the sun gear is set to be freely rotatable or the same input as the second input is applied to the sun gear. Can be.
  • the first output having a low speed and high torque characteristic generated from the carrier may be decelerated according to the reduction ratio determined by the number of gear teeth of the sun gear and the ring gear.
  • the planetary gear device may be rotatably supported in both directions.
  • Drum drive device for a drum washing machine of the present invention receives the output of the outer rotor motor shaft for transmitting to the first input of the planetary gear device; And an outer shaft rotatably coupled to an outer circumferential surface of the motor shaft and configured to receive the inner rotor output and to transmit the inner rotor output to a second input of the planetary gear device.
  • the drive motor is a double stator fixed to the back of the tub; An outer rotor disposed with a gap on an outer surface of the stator; And an inner rotor disposed with an air gap on the inner surface of the stator, wherein the output of the outer rotor is applied to the motor shaft, and the output of the inner rotor may be applied to the outer shaft.
  • the double stator may include a plurality of stator core assemblies each having a plurality of split-core stator cores each having a first coil wound around an outer tooth, a second coil wound around an inner tooth, and assembled into an annular arrangement; And a stator support formed integrally with the plurality of stator core assemblies and having an outer circumferential portion fixed to the rear surface of the tub and rotatably supporting the outer shaft on the inner circumferential portion.
  • the double stator includes a plurality of outer teeth to which the first coil is wound and a plurality of inner teeth to which the second coil is wound, and the number of slots of the outer teeth may be set larger than the number of slots of the inner teeth.
  • the planetary gear device may include a ring gear having one end connected to the outer shaft and the other end rotatably supported by the drum shaft, and the inner rotor output being applied as a second input; A sun gear extending integrally from the motor shaft, having a gear formed at an outer circumference thereof, and wherein the outer rotor output is transmitted to a first input through a motor shaft; A plurality of planetary gears which are geared to the outer surface of the sun gear and the inner surface of the ring gear and which rotate and revolve as the sun gear rotates; And a carrier having one end connected to the planetary gears and the other end connected to an outer surface of the drum shaft to apply first and second outputs to the drum shaft.
  • a first input input to the sun gear through the motor shaft is decelerated into a first output through a plurality of planetary gears and a carrier
  • a second input input to a ring gear through the outer shaft is a plurality of planetary gears. It can be output without deceleration to the second output via the carrier.
  • the ring gear when the decelerated output from the carrier is generated, the ring gear may be set to a fixed state by an electromagnetic brake, or a minimum RPM driving may be performed.
  • the RPM and torque of the second output can be controlled by applying rotational force in the same or opposite direction to the rotational direction of the first input to the ring gear.
  • the first and second inputs have high speed and low torque characteristics, respectively, and the first output has low speed and high torque characteristics, and is used for washing and rinsing strokes of the drum washing machine. It has a low torque characteristic and can be used for the dewatering stroke of the drum washing machine.
  • a drum driving apparatus for a drum washing machine includes: a drum shaft having a drum connected to one end thereof and rotatably supported by a tub; A double stator fixed to a rear surface of the tub and having an outer stator and an inner stator provided at an outer side and an inner side thereof; An outer rotor disposed with a gap on an outer surface of the outer stator; An inner rotor disposed with a gap in an inner surface of the inner stator; A motor shaft to which one of the outer rotor outputs is applied; An outer shaft rotatably coupled to an outer circumferential surface of the motor shaft and to which the inner rotor output is applied; And a planetary gear device configured to decelerate and transmit a first input input to the sun gear through the motor shaft to the drum shaft, and a second input input to the ring gear through the outer shaft to the drum shaft without deceleration. It is characterized by.
  • RPM of the carrier output When a decelerated output is generated from the carrier, when a rotational force is applied to the ring gear in a second input in the same direction as the rotational direction of the first input, the RPM of the carrier output is increased and the first input to the ring gear is increased. RPM of the carrier output may be reduced when a rotational force in a direction opposite to the direction of rotation is applied to the second input.
  • the first input input to the sun gear is torque converted to a first output having a low speed and high torque characteristic required for the washing and rinsing stroke of the drum washing machine
  • the second input input to the ring gear is a dehydration stroke of the drum washing machine. It may be output without torque conversion to a second output having a high speed and low torque characteristic required for.
  • the planetary gear device may be rotatably supported by an outer shaft connected to one side of the ring gear and the other end of the ring gear.
  • the drum drive apparatus for a drum washing machine of the present invention includes first and second drivers for independently applying a driving signal to the first and second coils wound on the outer stator and the inner stator of the double stator; And a control unit for applying a control signal according to each stroke of the drum washing machine to the first and second drivers.
  • the tub may include a fan-shaped protrusion and a recess, and the stator support extending from the outer stator may be fixed to the protrusion.
  • a drum washing machine includes: a tub suspended in a case and containing wash water; A drum disposed inside the tub and containing laundry; And a drum driving device mounted to a rear surface of the tub and rotating the drum shaft connected to one end of the tub.
  • the planetary gear device has an outer shaft connected to one end of the ring gear rotatably supported by the first and second sleeve bearings on the motor shaft, and the other end of the ring gear rotates through the third sleeve bearing on the drum shaft. Possibly supported.
  • the planetary gear device may be rotatably supported by a first bearing installed at one end of the tub and rotatably supported by a second bearing installed at the stator support of the driving motor.
  • a driving method of a drum washing machine is a driving method of a drum washing machine including a washing stroke, a rinsing stroke and a dehydration stroke in a drum drive device having a double rotor-double stator type drive motor and a planetary gear device.
  • the washing or rinsing stroke may include rotating the outer rotor of the driving motor and applying a first input having high speed and low torque to the sun gear of the planetary gear device through a motor shaft;
  • the ring gear of the planetary gear device is fixed or when the RPM of the second input applied to the ring gear is set smaller than the RPM of the first input, the first input applied to the sun gear is decelerated to reduce the speed and high torque characteristics from the carrier.
  • the condition applied to the ring gear of the planetary gear device is to fix the ring gear or to rotate the ring gear at the minimum RPM.
  • the dewatering stroke may include applying a second input to a ring gear of the planetary gear device through an outer shaft rotatably coaxially coupled to an outer circumference of the motor shaft by rotating the inner rotor of the drive motor; A second input of the inner rotor input to the ring gear generates a second output from a carrier without torque conversion; And receiving a second output from the carrier to rotate the drum.
  • a second input is applied to the ring gear via an outer shaft, and the sun gear is set to be freely rotatable, or the same input as the second input is applied to the sun gear. Can be authorized.
  • the first input may have high speed and low torque characteristics
  • the first output may have low speed and high torque characteristics
  • a drum drive device for a drum washing machine includes: a drive motor of a double rotor-double stator type mounted on a rear surface of a tub and generating independently controllable first and second outputs; A first power transmission line for transmitting said first output; A second power transmission line coupled coaxially to an outer circumference of the first power transmission line to transmit a second output; And receiving a first output transmitted through the first power transmission line as a first input to the sun gear, rotating and revolving a plurality of planetary gears, and transmitting a second output transmitted through the second power transmission line to the ring gear. It receives two inputs to control the amount of revolution and the amount of rotation of the planetary gear to make a continuous shift, the sun gear input-carrier output type transmission that the shifted output is applied to the drum shaft through a carrier; do.
  • the ring gear When the decelerated output from the carrier is generated, the ring gear can be set to a fixed state by an electromagnetic brake or a minimum RPM drive can be made.
  • the RPM of the carrier output is increased, and when applying a rotational force in a direction opposite to the rotational direction of the first input to the ring gear The RPM of the carrier output is reduced.
  • a driving method of a drum washing machine includes: driving a drive motor of a double rotor-double stator method to generate first and second powers that can be independently controlled; Transmitting the first power through a first power transmission line, and transmitting the second power through a second power transmission line coaxially coupled to an outer circumference of the first power transmission line; And transmitting the first power to the sun gear of the transmission to rotate and revolve the plurality of planetary gears, and transmitting the second power to the ring gear to control the amount of rotation and rotation of the plurality of planetary gears to the drum shaft. And controlling a shift amount of the carrier output to be applied.
  • the ring gear When the decelerated output is generated from the carrier, the ring gear may be fixed or the RPM of the second power applied to the ring gear may be set smaller than the RPM of the first power.
  • the drum drive device of the present invention combines a double rotor-double stator type twin drive motor and a planetary gear device that acts as a transmission, thereby driving the driving force of various characteristics required in the washing and dewatering stroke of the drum washing machine.
  • the drum can be provided with high efficiency.
  • the present invention can implement a high-efficiency large-capacity drum washing machine by driving the drum by using a twin force that satisfies the low speed, high torque characteristics during the washing stroke, and satisfies the high speed, low torque characteristics during the dehydration stroke.
  • a control input applied to a ring gear when generating a carrier output having a low speed and high torque characteristic required for washing and dewatering stroke from a sun gear input having a high speed and low torque characteristic through a sun gear input-carrier output transmission can be controlled continuously by
  • the planetary gear unit acts as a continuously variable transmission that generates a carrier output by continuously changing the RPM of the sun gear input according to the ring gear control input. Therefore, the planetary gear device can greatly reduce vibration and noise of the drum washing machine when used in a drum driving device. do.
  • a high-efficiency drum washing machine can be realized by using a combination of a first output having a low speed and high torque characteristic and a second output having a high speed and low torque characteristic according to each stroke.
  • FIG. 1 is an axial cross-sectional view of a drum washing machine according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged view of the drum driving apparatus shown in FIG. 1.
  • FIG. 3 is a schematic cross-sectional view of a driving motor in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of a stator according to an embodiment of the present invention.
  • FIG. 5 is a plan view of a stator core according to an embodiment of the present invention.
  • FIG. 6 is a rear perspective view illustrating a tub of a drum washing machine to which a drum drive device of the present invention is attached.
  • FIG. 7 is a block circuit diagram illustrating a washing machine control device according to the present invention.
  • FIG. 8 is a signal flow diagram showing the operation of the washing machine control apparatus according to the washing machine driving method of the present invention.
  • FIG. 9 is an axial sectional view of a drum drive device according to a second embodiment of the present invention.
  • FIG. 10 is a schematic plan view of a planetary gear apparatus according to the present invention.
  • a drum washing machine includes a case in which a cover that is openable and closed on one side, a tub 110 suspended by a damper inside the case, and in which washing water is received.
  • the drum 120 is rotatably supported in the tub 110 to accommodate the laundry, and a drum driving device for supplying the driving force necessary for washing, rinsing, loosening and dewatering strokes to the drum 120. 100).
  • the drum driving device 100 is mounted on the rear surface of the tub 110, the drive motor 130 of the double rotor-double stator method for generating a high-speed, low-torque twin power to rotate the drum 120, and In the first output to satisfy the low speed and high torque characteristics required in the washing stroke and the rinsing stroke by receiving the high speed and low torque output of the outer rotor 30 and the inner rotor 40 of the drive motor 130, And a planetary gear device 70, which is a torque converter for selectively decelerating (torque converting) to provide one of the second outputs satisfying the required high speed and low torque characteristics.
  • the planetary gear device 70 serves as a transmission of the sun gear input-carrier output type, and generates a carrier output having low speed and high torque characteristics required for washing and dewatering strokes from the sun gear input having high speed and low torque characteristics.
  • the deceleration amount of the carrier output can be continuously controlled by the control input applied to the ring gear.
  • the load of the laundry is detected by a load detection sensor (not shown) that detects the load of the laundry, and the amount of rotation of the planetary gear and the amount of revolution of the planetary gear are controlled by controlling the ring gear input according to the detected load. Therefore, the deceleration amount of the carrier output applied to the drum shaft can be continuously controlled to have an appropriate torque value linked to the load amount of the laundry.
  • the planetary gear device 70 acts as a continuously variable transmission that generates a carrier output by continuously changing the RPM of the sun gear input according to the ring gear control input, and when used in a drum driving device, greatly reduces vibration and noise of the drum washing machine. It becomes possible.
  • the planetary gear device 70 is installed between the drive motor 130 and the drum 120, and outputs the outputs of the outer rotor 30 and the inner rotor 40 of the drive motor 130 to the motor shaft 12 and the outer, respectively. It is received through the shaft 60. Thereafter, the first input input to the motor shaft 12 is transmitted to the drum shaft 10 as the output of the carrier 78 after deceleration (torque conversion) while passing through the sun gear 74 and the planetary gear 76, and the outer The second input received through the shaft 60 to the ring gear 72 is transmitted to the drum shaft 10 at the output of the carrier 78 without deceleration (torque conversion).
  • the structure and operation of the planetary gear device 70 will be described in detail later.
  • the tub 110 has a through hole 118 through which the drum shaft 10 passes, a bearing housing 113 is fixedly installed on an inner surface of the through hole 118, and a drum shaft 10 is installed in the bearing housing 113.
  • a fixing member 16 for suppressing the leftward flow of the drum shaft 10 is provided with a drum shaft ( 10) is fastened.
  • the fixing member 16 may use a fixing nut or a snap ring.
  • a fixing member (not shown) for restraining the rightward flow of the drum shaft 10 is also fastened to the drum shaft 10 on the left side of the first bearing 114, or to the outer diameter of the drum shaft 10. You can solve this by placing a step.
  • the drum shaft 10 may be supported more firmly because the drum shaft 10 is supported by the tub 110 by the first and second bearings 114 and 116.
  • a seal may be installed between the through hole 118 and the drum shaft 10 to prevent the washing water from flowing out.
  • the driving motor 130 has a stator 20 fixed to the rear surface of the tub 110, an outer rotor 30 disposed with a predetermined gap on the outer circumferential surface of the stator 20, and a predetermined gap on the inner circumferential surface of the stator 20.
  • the inner rotor 40 is disposed to be disposed, and the stator 20 has a double stator structure for independently driving the outer rotor 30 and the inner rotor 40, respectively.
  • the stator 20 drives the outer stator and the inner stator to selectively and independently drive the outer rotor 30 and the inner rotor 40 using the first and second drivers 530 and 540 shown in FIG. 7. 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 output of the outer rotor 30 of the drive motor 130 is input to the sun gear 74 of the planetary gear device 70 is converted into torque and then output to the first output, the output of the inner rotor 40 is It is input to the ring gear 72 of the planetary gear device 70 through the outer shaft 60 and output to the second output without torque conversion.
  • the output of the outer rotor 30 and the inner rotor 40 of the drive motor 130 that is, the first and second inputs input to the sun gear 74 and the ring gear 72 of the planetary gear device 70, respectively, are high speed.
  • Has a low torque characteristic the torque converted first output satisfies the low speed, high torque characteristics required in the washing stroke, the second output output without torque conversion satisfies the high speed, low torque characteristics required in the dehydration stroke Let's do it.
  • the output of the outer rotor 30 is input to the sun gear 74 of the planetary gear device 70, and the output of the inner rotor 40 is the planetary gear device 70.
  • the combination input to the ring gear 72 of the is employ
  • the outer rotor 30 is disposed with a predetermined gap on the outer surface of the stator 20, and a plurality of first magnets 32 and N-poles and S-poles alternately arranged, and a first magnet.
  • the first back yoke 34 and the first magnet 32 and the first back yoke 34 are integrally fixed to each other and the other end is connected to the motor shaft 12 so that the planetary gear device ( An outer rotor support 36 that rotates with the sun gear 74 of 70.
  • the outer rotor support 36 is formed in a cup shape having one side opened, and accommodates the stator 20 inside, and the planetary gear device 70 is accommodated in the center.
  • the tub 110 has a plurality of protrusions 111 protruding radially, and a plurality of recesses 112 are radially disposed between the plurality of protrusions 111. .
  • the tub fixing portion 216 of the stator support 200 is fixed to the plurality of protrusions 111 by a bolt 280 as shown in FIG. 2, and the stator support 200 and the outer and inner rotor supports 36 and 46 are A plurality of through holes may be provided for the circulation of air, and the outside cold air through the plurality of recesses 112 may condense through the plurality of through holes to heat heat generated from the stator 20. To be discharged.
  • the outer rotor support 36 is molded with a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin, and thus, the first magnet 32 and the first back yoke 34. It is formed integrally with.
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin
  • the first back yoke 34 is removed as shown in FIG. 2, and the first magnet 32 is attached to the outer rotor support 36 as an adhesive. It can be fixed by using a known fastening means.
  • the inner side of the outer rotor support 36 includes a first connection portion 36e coupled to the outer surface of the motor shaft 12 with a wide contact area.
  • the first connection portion 36e may have a structure in which protrusions are formed on the outer surface of the motor shaft 12 to be serration coupled or spline coupled, and may have a structure in which key grooves are keyed to each other.
  • the first fixing member 50 is fastened together with the washer to prevent the outer rotor support 36 from being separated from the motor shaft 12.
  • the first fixing member 50 may use a fixing nut or a snap ring.
  • the inner rotor 40 is disposed with a predetermined gap on the inner surface of the stator 20, and is arranged on the back of the second magnet 42 and the plurality of second magnets 42 in which the N pole and the S pole are alternately arranged.
  • a second back yoke 44 and an inner rotor support 46 formed integrally with the second magnet 42 and the second back yoke 44 by insert molding and having the other end connected to the motor shaft 12. do.
  • the inner rotor support 46 is formed integrally with the second magnet 42 and the second back yoke 44 by molding with a thermosetting resin or thermoplastic resin.
  • the second back yoke 44 is removed as shown in FIG. 2 and the second magnet 42 is adhesively bonded to the inner rotor support 46. It can be fixed using, for example.
  • the inner rotor support 46 is formed on the outer surface of the second magnet 42 and the second back yoke 44 integrally.
  • the inner rotor support 46 has a cup shape to accommodate the third bearing 92 that supports the planetary gear device 70 therein.
  • the inner rotor support 46 includes a second connecting portion 46e coupled to an outer surface of the outer shaft 60.
  • a second fixing member 52 is fastened to the outside of the second connecting portion 46e to prevent the second connecting portion 46e from being separated from the outer shaft 60.
  • the second fixing member 52 may use a fixing nut or a snap ring.
  • a cylindrical outer shaft 60 is disposed on the outer surface of the motor shaft 12 with a predetermined gap, and an inner surface of the outer shaft 60 has a cylindrical first sleeve bearing 80 and a second sleeve bearing 82. ) Are installed at intervals to rotatably support the motor shaft 12.
  • the outer shaft 60 is disposed on the outer surface of the motor shaft 12 and is rotatably supported by the third bearing 92 on the outer surface thereof, and one end of the cylindrical portion 62. It is bent in the form of a disk extending to cover one side of the planetary gear device 70 and the outer peripheral portion includes a disk portion 64 connected to the ring gear 72.
  • a third bearing 92 is provided on the outer surface of the outer shaft 60, and the outer shaft 60 is rotatably supported by the third bearing 92. Since the third bearing 92 is mounted on the bearing mounting portion 217 formed on the stator support 200 to be described later, a separate bearing housing for mounting the third bearing 92 is unnecessary, thereby simplifying the structure and reducing the number of parts. Can be reduced.
  • both sides are positioned by protrusions 80a and 82a protruding from both sides of the first sleeve bearing 80 and the second sleeve bearing 82.
  • the second sleeve bearing 82 is fixed in position as the first connection part 36e is fastened to the motor shaft 12.
  • the planetary gear device 70 includes a ring gear 72 having one end connected to the disc portion 64 of the outer shaft 60, and a sun gear 74 integrally connected to the motor shaft 12 and having a gear portion at an outer surface thereof.
  • the inside and the outside of the sun gear 74 and the inner surface of the ring gear 72 is geared, respectively, and has a rotary shaft 76a, respectively, the rotation of the sun gear 74 and the inner surface of the ring gear 72
  • the planetary gear 76 includes a plurality of planetary gears 76 and a carrier 78 having one side connected to the rotation shaft 76a of the plurality of planetary gears 76 and the other side connected to the outer surface of the drum shaft 10.
  • the third sleeve bearing 14 is rotatably coupled to the outer surface of the drum shaft 10, and the other extension portion 72a of the ring gear 72 is fixed to the outer surface of the third sleeve bearing 14 so that the ring One end of the gear 72 is rotatably supported.
  • the third sleeve bearing 14 may use a bushing.
  • one side of the ring gear 72 is rotatably supported by the outer shaft 60 by the first sleeve bearing 80, the second sleeve bearing 82, and the third bearing 92. Since the other end of the gear 72 is rotatably supported by the third sleeve bearing 14, the both ends of the planetary gear device 70 are rotatably supported in both directions.
  • the planetary gear device 70 has high axial stability and planetary gears as both ends thereof are stably supported by the first to third sleeve bearings 80, 82, 14 and the third bearing 92 disposed at intervals. Suppression of vibration caused by rotation of the device 70 is suppressed.
  • the third bearing 92 has one end of the planetary gear device 70 stably as the outer circumferential portion is installed in the bearing mounting portion 217 formed on the inner circumference of the stator support 200 fixed to the rear surface of the tub 110. I support it.
  • the rotational force is selectively or simultaneously applied to the sun gear 74 and the ring gear 72 of the planetary gear device 70, if both ends of the planetary gear device 70 are not stably supported, it may cause vibration. And durability can be reduced.
  • first to third bearings (114, 116, 92) it is preferable to apply a ball-type bearing in order to improve the durability.
  • the other end of the carrier 78 is connected to the outer surface of the drum shaft 10 so that the rotational force of the carrier 78 is transmitted to the drum shaft 10.
  • the other end inner surface of the carrier 78 is formed with a third connecting portion 13 connected to the drum shaft 10.
  • the third connecting portion 13 may have a structure in which protrusions are formed on the outer surface of the drum shaft 10 to be serration-coupled or spline-coupled, and have a structure in which key grooves are mutually key-coupled to each other. Can be.
  • the outer rotor support 36 is connected to the sun gear 74 through the motor shaft 12 so that the rotational force of the outer rotor 30 is transmitted to the sun gear 74.
  • the inner rotor 40 is set to a stopped state by applying an electromagnetic brake by driving control of the inner stator located inside the stator 20 by the second driver (ie, inverter) 540,
  • the resulting ring gear 72 is also set in a fixed state.
  • the carrier 78 Since the carrier 78 is connected to the drum shaft 10 through the third connecting portion 13, the rotational speed of the inner rotor 40 is decelerated while passing through the planetary gear device 70, so that the low speed required by the washing stroke, The high torque first output is transmitted to the drum shaft 10.
  • the output of the outer rotor 30 is transmitted to the drum shaft 10 is reduced in the rotational speed through the planetary gear device (70).
  • the drive motor 130 of the present invention is a large-capacity drum requiring the characteristics of low speed and high torque at the washing stroke Applicable to washing machines.
  • the sun gear 74 is also freely rotatable. Therefore, the rotational force applied to the ring gear 72 is the ring gear 72 around the sun gear 74. It is transmitted to the drum shaft 10 through the third connecting portion 13 without the reduction of the rotation speed through the planetary gear 76 and the carrier 78 is rotated with.
  • the rotational force of the inner rotor 40 is transmitted to the drum shaft 10 as the second output of the high speed, low torque required in the dehydration stroke, without the rotation speed being substantially reduced while passing through the planetary gear device 70.
  • FIG 3 is a schematic cross-sectional view of a driving motor in accordance with an embodiment of the present invention
  • Figure 4 is a schematic cross-sectional view of a stator according to an embodiment of the present invention
  • Figure 5 is a stator core according to an embodiment of the present invention Top view of the.
  • the stator 20 includes a plurality of stator core assemblies 21 annularly arranged, a plurality of stator core assemblies 21 annularly arranged, and an outer circumferential portion of the stator 20 at the rear of the tub 110. It includes a stator support 200 (see FIG. 2), which is fixed and forms a bearing mount 217 at an inner circumference thereof to support the third bearing 92.
  • the plurality of stator core assemblies 21 may be divided into a split core type stator core 22 which is arranged in an annular shape and coupled to each other as illustrated in FIGS. 3 and 4, and a coil winding region on an outer circumferential surface of each of the split core type stator cores 22.
  • the bobbin 24 is made of an insulating material which is wrapped to define the non-magnetic material, the first coil 26 wound around one side (outside) bobbin of the stator core 22, and the other side (inside) of the stator core 22. And a second coil 28 wound around the bobbin.
  • stator cores around which the coils 26 and 28 are wound are arranged to have an annular shape, and thus, the plurality of split core type stator cores 22 are connected to each other. It is also possible that the stator core is composed of an integral or partially split core without being limited thereto.
  • the split core type stator core 22 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.
  • the split core type stator core 22 is disposed at an outer side of the stator core 22, and is formed at an opposite side and an inner side of the first tooth portion 220 on which the first coil 26 is wound.
  • the partition portion 224 partitioning between the first tooth portion 220 and the second tooth portion 222, and the partition portion 224. It is formed at both ends in the lateral direction includes a coupling portion (230,232) for interconnecting between the split core-like core (22).
  • the first coil 26 wound around the first tooth portion 220 of the stator core 22 to drive the outer rotor 30 and the inner rotor 40 constitutes the outer stator.
  • the second coil 28 wound around the second tooth portion 222 of the stator core 22 forms an inner stator to form a double stator.
  • the driving signal is separately applied from the first and second drivers 530 and 540 to the first coil 26 constituting the outer stator and the second coil 28 constituting the inner stator.
  • the rotor 30 and the inner rotor 40 are driven respectively.
  • the first driving signal is applied from the first driver 530 to the first coil 26 and the second driving signal is applied from the second driver 540 to the second coil 28, the first driving signal is applied to the first coil 26.
  • the driving signal is applied only to the coil 26.
  • only the outer rotor 30 is rotated.
  • only the inner rotor 40 is rotated, and the first coil 26 and the second coil are rotated.
  • the driving signal is simultaneously applied to the 28, the outer rotor 30 and the inner rotor 40 are rotated at the same time.
  • Through-holes 240 are formed in the center of the partition 224 may be used for bolting for integration with the stator support 200.
  • the first flange portion 250 is formed at the end of the first tooth portion 220 to face the first magnet 32, and the second magnet 42 at the end of the second tooth portion 222.
  • a second flange portion 252 is disposed facing the second flange portion 252 is formed.
  • the first flange 250 and the second flange portion 252 are inward and at a predetermined curvature so as to correspond to the first magnet 32 of the outer rotor 30 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 22 is increased, the magnetic gap is constant while the inner circumferential surface and the outer circumferential surface of the stator 20 are close to each other while being close to each other. Can be maintained.
  • stator cores 22 should have a structure directly connected to each other to form a magnetic circuit. Accordingly, the coupling parts 230 and 322 have a structure in which adjacent stator cores 22 are directly connected to each other.
  • the coupling parts 230 and 232 are formed such that the coupling protrusion 232 protrudes on one side of the partition 224, and the coupling groove 230 is fitted to the other side of the partition 224. ) Is formed, and when the coupling protrusion 232 is fitted into the coupling groove 230, the stator cores 22 are arranged in an annular shape and have a structure directly connected to each other.
  • the coupling portion forms pinholes at both ends of the partition portion of the stator core, and the pin member is inserted between the pinholes of the two stator cores in a state in which the stator cores are in contact with each other to form a gap between the stator cores.
  • the connecting structure is also applicable, and a method of caulking using a caulking member in a state in which the stator cores are in contact with each other is also applicable.
  • stator 20 The manufacturing process of the stator 20 is demonstrated below.
  • a bobbin 24 is integrally formed in each of the plurality of split core type stator cores 22, and the first and second teeth portions 220 and 222 of the first and second teeth portions 220 and 222 of the plurality of split core type stator cores 22 are integrally formed.
  • the second coils 26 and 28 are wound.
  • the method of winding the first and second coils 26 and 28 is, for example, when configuring a three-phase drive type BLDC motor, each U of the first and second teeth portions 220 and 222 for each tooth.
  • the three-winding coil method of winding the first and second coils 26 and 28 by varying the U, V, and W phases every three teeth. Subject to change.
  • Winding the first and second coils 26, 28 on the bobbin 24 of the plurality of split cored stator cores 22 results in a plurality of stator core assemblies 21.
  • the plurality of stator core assemblies 21 obtained are made of insert molding in order to be integrated with the stator support 200 to be annularly assembled.
  • the plurality of stator core assemblies 21 may be preassembled in an annular form by connecting all coupling portions 230 and 232 of the plurality of split core type stator cores 22 or partially assembled in U, V, and W phases. After assembling and installing in the mold or assembling the split core type stator core 22 in the mold, the stator support 200 is integrally formed with the plurality of stator core assemblies 21 by insert molding.
  • stator support 200 is integrally molded with the plurality of stator core assemblies 21 by insert molding using a thermosetting resin, for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin.
  • a thermosetting resin for example, a BMC (Bulk Molding Compound) molding material such as polyester or a thermoplastic resin.
  • the stator support 200 is manufactured by insert molding, in addition to the structure formed integrally with the plurality of stator core assemblies 21, and separately manufactured the stator support 200 and the plurality of stator core assemblies 21, respectively, and then the stator core. It is also possible to bolt to the through hole 240 of the assembly 21 to be integrated with the stator support 200.
  • the stator support 200 is a core fixing portion 213 integrally formed on the inner side surfaces of the plurality of stator core assemblies 21 by insert molding, and a first connection extending bent at right angles from the core fixing portion 213.
  • the second connecting member 215 is bent at right angles and extends to surround the inner rotor 40 therein, and is bent at a right angle at the second connecting member 215 and then extended in the center direction to extend the third bearing 92.
  • Bearing mounting portion 217 to be mounted.
  • tub fixing part 216 is formed at the outer end of the stator support 200 and is directly fixed to the tub 110, a separate fixing frame for fixing the stator support 200 to the tub 110 is unnecessary.
  • the number of parts can be reduced, and the structure can be simplified.
  • stator support 200 has a bearing mounting portion 217 in which the third bearing 92 is mounted at the inner end thereof, so that a separate bearing housing for mounting the third bearing 92 is unnecessary, thereby reducing the number of parts. And the structure can be simplified.
  • the stator support 200 is disposed inside the outer rotor 30 and the inner rotor 40, and a third bearing 92 is installed at an inner circumference thereof to support the outer shaft 60 so as to rotatably support the planetary gear device ( 70 is also rotatably supported.
  • 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 is installed.
  • the drum driving apparatus of the present invention forms a first magnetic circuit L1 between one side of the stator 20 on which the outer rotor 30 and the first coil 26 are wound, that is, the outer stator, as shown in FIG. 3. Since the second magnetic circuit L2 is formed between the other side of the stator 20 on which the inner rotor 40 and the second coil 28 are wound, that is, the inner stator, each of the inner rotors 30 forms an independent magnetic circuit. ) And the outer rotor 40 may be driven separately.
  • the first magnetic circuit L1 includes the first magnet 32 of the N pole, the first tooth portion 220 on which the first coil 26 is wound, the outer part of the partition 224, and the N pole of the N magnetic pole. Via the first magnet 32 and the first back yoke 34 of the S pole adjacent to the first magnet 32.
  • the second magnetic circuit L2 is divided into a second tooth portion 222 facing the second magnet 42 of the N pole, the second magnet 42 of the N pole, and the second coil 28 wound around the second magnet 42. Via the inner part of the part 224, the 2nd magnet 42 of the S pole, and the 2nd back yoke 44. As shown in FIG.
  • first and second magnetic circuits L1 and L2 may pass the first and second coils 26 and 28 wound around the first and second tooth portions 220 and 222 for each tooth.
  • 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 stator 20 prepares the plurality of stator core assemblies 21 using the plurality of split core type stator cores 22, and then the plurality of stator core assemblies 21.
  • the number of slots of the outer stator and the inner stator are manufactured to be the same.
  • the present invention is not limited thereto and various modifications are possible.
  • the number of slots of the outer stator and the inner stator may be differently set in a direction advantageous for increasing the efficiency of the driving motor and the washing machine while employing the integrated stator core or the partially split core as the stator core.
  • the output of the outer rotor 30 driven by the outer stator may be used for washing and rinsing strokes.
  • the output of the inner rotor 40 which is input to the sun gear 74 and driven by the inner stator is input to the ring gear 72 of the planetary gear device 70 to be used for the dehydration stroke, the slot of the outer stator is exhausted. It is preferable to select a (multi) slot structure, and to select a low slot structure for the slot of the inner stator.
  • the washing machine control apparatus includes a first driver 530 generating a first driving signal applied to the first coil 66 and a second driving applied to the second coil 68.
  • a second driver 540 for generating a signal, the first driver 530, the second driver 540 and a control unit 500 for controlling the entire washing machine.
  • the control unit 500 acts as a system controller to control the entire washing machine simultaneously with the control of the first and second drivers 530 and 540 as described above, or according to the washing course set by the user from the system controller of the washing machine body. After receiving the determined washing control signal may be configured as a driver-specific control device for applying a separate control signal to the first and second drivers (530, 540) based on this.
  • the control unit 500 may be configured as a signal processing device such as a microcomputer or a microprocessor, and has a built-in or separately provided PWM control unit for generating a PWM control signal.
  • the drive motor 130 of the present invention is made of a twin-force structure consisting of a double rotor-double stator, for example, the motor control is made by U, V, W three-phase driving method. Accordingly, the first and second coils 26 and 28 of the stator 20 also consist of U, V, and W three-phase coils, respectively.
  • Stator 20 of the present invention includes an outer stator having a first coil 26 and an inner stator having a second coil 28 to drive the outer rotor 30 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 30 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. 26, 28) is applied to the U, V, W three-phase coil.
  • the control unit 500 is based on the rotation positions of the outer rotor 30 and the inner rotor 40 detected from the first and second rotor position sensors 510 and 520, respectively, which are formed of, for example, 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 30 and the inner rotor 40 are rotationally driven by applying them to the U, V, and W three-phase coils 26 and 28.
  • 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 drum washing machine according to the present invention is first turned on the power of the washing machine 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 drives the inverters of the first driver 530 and the second driver 540 according to the washing or rinsing stroke (S204).
  • 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 20
  • 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 may drive only the outer rotor 30 or rotate the outer rotor 30 and the inner rotor 40 in the same direction / same RPM.
  • the drum 120 is moved in one direction through the planetary gear device 70. Rotation to perform a dehydration stroke (S212).
  • 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.
  • washing or rinsing stroke according to the present invention described above is as follows.
  • 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 26 and the second coil 28 of the stator 20
  • the outputs of the outer rotor 30 and the inner rotor 40 driven by the first coil 26 and the second coil 28 of the stator 20 have high speed and low torque characteristics, respectively.
  • the first input of the first RPM from the outer rotor 30 ie, high speed, low torque.
  • Characteristic input is input to the sun gear 74, the sun gear 74 is rotated, a plurality of planetary gear 76 is rotated and the revolution along the ring gear 72 is made, the rotary shaft 76a of the planetary gear 76 While the carrier 78 is connected in the same direction as the rotational direction of the outer rotor 30, deceleration is set according to the gear ratio of the sun gear and the ring gear is made so that the first output of the second RPM is the carrier of the planetary gear device 70 Occurs from (78).
  • the drum 120 receives a low speed and high torque output to wash or rinse. This is achieved with high efficiency.
  • the first output is increased in torque as the first input of the first RPM is reduced to the second RPM to satisfy the low speed and high torque characteristics required in the washing stroke and the rinsing stroke.
  • the shift 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 inner rotor 40, the outer shaft 60, and the ring gear 72 by the first driver 530 is, for example, the first of the stator 20 from the first driver 530.
  • the three-phase AC power applied to the single coil 26 or the first coil 26 is shorted to control the outer shaft 60 and the ring gear 72 connected to the inner rotor 40 to stop.
  • the ring gear 72 is, for example, about 10 RPM, the sun gear 74.
  • outer rotor 30 (-) 10 RPM By driving the inner rotor 40 in the reverse direction, the amount of deceleration of the first output of the planetary gear device 70 output through the carrier 78 can be controlled.
  • the inner rotor 40 after the electromagnetic brake is released.
  • RPM and torque of the first output can be controlled by controlling the forward RPM of or by rotating the inner rotor 40 in reverse.
  • the speed ratio obtained from the carrier 78 is set to 5.33: 1, and the sun gear 74 from the outer rotor 30 is set.
  • the RPM of the first input inputted to is 1000 RPM
  • the RPM of the first output of the planetary gear device 70 is obtained at 188 RPM, and the ring gear 72 is forwarded.
  • the first output RPM of the planetary gear device 70 is about 208 RPM
  • (-) 10RPM rotational force is applied in the reverse direction to the ring gear 72
  • the first output of the planetary gear device 70 is applied.
  • the RPM of about 190 RPM is obtained.
  • the planetary gear device 70 operates as a transmission of the sun gear input-carrier output type when generating a first output having a low speed and high torque characteristic required for washing or rinsing stroke.
  • a carrier output i.e., first output
  • the carrier output is controlled by a control input applied to the ring gear. The deceleration can be continuously controlled without permission.
  • the first output decelerated from the first input is generated from the carrier.
  • the deceleration amount of the carrier output decreases, and when the rotational force in the opposite direction to the sun gear input is applied to the ring gear input, the deceleration amount of the carrier output increases.
  • 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.
  • the driving signal is applied from the second driver 540 to the second coil 28 of the inner stator, so that the inner rotor 40 (ie, the ring gear 72) is forwarded at 1000 RPM of high speed and low torque characteristics. It rotates and freely rotates without applying a drive signal to the outer rotor 30, or rotates the outer rotor 30 in the forward direction at 1000 RPM in the same manner as the inner rotor 40.
  • the ring gear 72 of the planetary gear device 70 is transmitted with the same high speed and low torque characteristics as the first input, or the high speed and low torque characteristics are equal to the ring gear 72 and the sun gear 74.
  • the ring gear 72 or the planetary gear device 70 that is rotatably supported by the first to third sleeve bearings 80, 82, 14 and the third bearing 92. Will rotate without deceleration.
  • the first input of the high speed, low torque characteristic applied to the ring gear 72 rotates the ring gear 72 or the entire planetary gear device 70 so that the drum shaft through the planetary gear 76 and the carrier 78.
  • the transmission is made to (10) without deceleration (torque conversion).
  • the first input of the high speed, low torque characteristic that is, the second output transmitted to the drum shaft 10 without deceleration (torque conversion) satisfies the high speed, low torque characteristic required in the dehydration stroke, and the drum 120 As a result, the dewatering stroke is made highly efficient.
  • the planetary gear device 70 operates as a transmission of a ring gear input-carrier output type when it is going to generate a second output having a high speed and low torque characteristic necessary for a dehydration stroke.
  • the carrier output i.e., the second output
  • the ring gear input i.e., the first input
  • the deceleration of the carrier output by the control input applied to the sun gear The amount can be continuously controlled without permission.
  • the ring gear input When the same sun gear input as the ring gear input is input for the ring gear input having high speed and low torque characteristics, the ring gear input is generated from the carrier without deceleration, and the ring gear input from the carrier when the sun gear input is smaller RPM than the ring gear input.
  • the output of the reduced RPM is generated, and when the sun gear input is a larger RPM than the ring gear input, an output of the RPM is increased from the carrier than the ring gear input and reduced than the sun gear input.
  • the ring gear input becomes the first input
  • the sun gear input serves as the second input as a control input for controlling the deceleration amount of the carrier output. Do it.
  • the gearbox of the ring gear input-carrier output method has a smaller reduction ratio than the transmission of the sun gear input-carrier output method, it is not preferable to apply it to the washing stroke and the rinsing stroke. That is, when the reduction ratio is 1/5 than the transmission of the sun gear input-carrier output system under the same conditions as in the first embodiment described below, the reduction gear ratio becomes 4/5 when driven by the transmission of the ring gear input-carrier output system. A relatively small reduction ratio output is obtained.
  • the gears of the ring gear input-carrier output method are operated in a deformed form without fixing the sun gear and are applied to the dehydration stroke.
  • the drum washing machine performs a washing stroke while passing the planetary gear device 70 using a high-speed, low-torque twin power output generated from the double rotor-double stator drive motor 130. And washing stroke and rinsing stroke and dehydration by applying the drum 120 to a first output satisfying the low speed and high torque characteristics required in the rinsing stroke and a second output satisfying the high speed and low torque characteristics required in the dehydration stroke.
  • the stroke can be executed with high efficiency.
  • both ends of the planetary gear device 70 are rotatably supported in both directions, a washing stroke and a rinsing stroke using a drive motor 130 having a twin-force structure composed of a double rotor-double stator are provided.
  • the planetary gear device 70 can absorb the active deceleration in the direction of reducing the load on the driving motor 130. This can be achieved, so that the current consumption can be reduced and the efficiency can be increased.
  • the outer rotor 30 since the outer rotor 30 is implemented with a relatively larger diameter than the inner rotor 40, the outer rotor 30 has a high torque characteristic required for the washing stroke and the rinsing stroke, and the inner rotor 40 ) Is a small diameter, so it has a high speed rotation characteristic necessary for the dehydration stroke.
  • the output of the outer rotor 30 having a greater torque characteristic than that of the inner rotor 40 is the output of the planetary gear apparatus 70. It is inputted to the sun gear 74, decelerated (torque converted), and then transmitted to the drum shaft 10 at the output of the carrier 78, where the washing stroke and the rinsing stroke are performed.
  • the drum drive device 100 proceeds with the dehydration stroke by using the output of the inner rotor 40 having the high speed rotation characteristic sufficient for the dehydration stroke, and the outer rotor having the large torque characteristic.
  • the output of 30 increases torque through the planetary gear device 70, a large torque driving force that cannot be realized in the conventional drum drive device can be applied to the drum 120, thereby providing a high capacity drum washing machine.
  • FIG. 11 shows a drum drive device of a second embodiment of the present invention.
  • the drum drive device 100a includes a drive motor 130 and a planetary gear device 70 having a double rotor-double stator method similar to the first embodiment described above.
  • the drum drive device 100a according to the second embodiment of the present invention has a first structure except for a support structure rotatably supporting the planetary gear device 70 when compared to the drum drive device 100 according to the first embodiment. It is substantially the same as the embodiment.
  • the same components as those in the first embodiment are assigned the same member numbers, and detailed description thereof will be omitted.
  • the difference between the second embodiment and the first embodiment is that the third sleeve bearing 14 is formed integrally with the second bearing 116 provided in the bearing housing 113.
  • one end of the planetary gear device 70 that is, the other end portion 72a of the ring gear 72 is inserted between the third sleeve bearing 14 and the second bearing 116 to be rotatably supported. Is adopted.
  • a fixing member 16 for suppressing the leftward flow of the drum shaft 10 is provided with a drum shaft ( 10) is fastened.
  • the fixing member 16 may use a fixing nut or a snap ring.
  • a fixing member (not shown) for restraining the rightward flow of the drum shaft 10 is also fastened to the drum shaft 10 on the left side of the first bearing 114, or to the outer diameter of the drum shaft 10. You can solve this by placing a step.
  • the drum shaft 10 may be supported more firmly because the drum shaft 10 is supported by the tub 110 by the first and second bearings 114 and 116.
  • a seal may be installed between the through hole 118 and the drum shaft 10 to prevent the washing water from flowing out.
  • 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 drum drive device is applied to the ring gear while using the planetary gear device of the sun gear input-carrier output structure for torque conversion (deceleration) of one of the pair of powers generated by the drive motor.
  • a shift system that determines the deceleration amount of the carrier output according to the control input is illustrated, a planetary gear device having any structure can be used as long as it can decelerate the input applied from the drive motor.
  • a transmission system that uses a planetary gear device having a ring gear input-carrier output structure and determines a deceleration amount of the carrier output in accordance with a control input applied to the sun gear can be applied.
  • the planetary gear device 70 employs four planetary gears, and sets the number of gear teeth to 15, a ring gear: 64, and a planetary gear: 24.
  • the outer rotor 30 and the inner rotor 40 are driven to apply RPM inputs of various conditions to the sun gear 74 and the ring gear 72 and measure the output applied to the drum shaft 10 from the carrier 78. It is shown in the table.
  • (+) indicates clockwise rotation and (-) indicates counterclockwise rotation.
  • the direction of the sun gear and the ring gear input were set in the reverse direction as in the condition 4. That is, in the case of sun gear: (-) 250 RPM and ring gear: 125 RPM, that is, when the ring gear was rotated in the opposite direction to the sun gear, a carrier output of 50 RPM and a torque increase of 5 times were obtained.
  • condition 6 when the sun gear and the ring gear were in the same direction, the same RPM, that is, the sun gear: 500 RPM and the ring gear: 500 RPM, the carrier output was 500 RPM and the torque was unchanged.
  • the RPM of the ring gear is set to the maximum and the sun gear RPM is close to the ring gear as in condition 7, that is, when the sun gear: 900 RPM and the ring gear: 1200 RPM are obtained, the carrier output is 1140 RPM, which is slightly reduced than the ring gear input. lost.
  • the conditions 1 to 5 may be used when performing washing and rinsing strokes, and the conditions 6 and 7 may be applied to the dehydration stroke.
  • the output of the outer rotor satisfies the low speed and high torque characteristics required in the washing stroke through the planetary gear device serving as a transmission, which is a torque converter, and the output of the inner rotor satisfies the high speed and low torque characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

La présente invention concerne un appareil d'entraînement de tambour et une machine à laver à tambour comportant celui-ci, l'appareil d'entraînement de tambour produisant une force d'entraînement ayant différentes caractéristiques, qui est requise pendant le lavage et l'essorage dans une machine à laver à tambour, pour être efficacement fournie à un tambour au moyen d'un moteur à double rotor/double stator et un dispositif à engrenage planétaire qui joue le rôle de transmission. Un appareil d'entraînement de tambour, selon la présente invention, comprend : un moteur à double rotor/double stator qui est monté sur l'arrière d'un bac et génère une sortie de rotor externe et une sortie de rotor interne qui peut être commandée indépendamment; et un dispositif à engrenage planétaire qui reçoit une sortie de rotor externe par l'intermédiaire d'un planétaire en tant que première entrée et génère ensuite une première sortie réduite d'un support, reçoit une sortie de rotor interne par l'intermédiaire d'une couronne en tant que deuxième entrée et génère ensuite une deuxième sortie sans réduction du support, et les première et deuxième sorties à un arbre de tambour raccordé à un tambour.
PCT/KR2016/000738 2015-01-26 2016-01-22 Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci Ceased WO2016122171A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0012248 2015-01-26
KR1020150012248A KR101639022B1 (ko) 2015-01-26 2015-01-26 드럼 구동장치, 이를 구비한 드럼 세탁기 및 구동방법

Publications (1)

Publication Number Publication Date
WO2016122171A1 true WO2016122171A1 (fr) 2016-08-04

Family

ID=56505735

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/000738 Ceased WO2016122171A1 (fr) 2015-01-26 2016-01-22 Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci

Country Status (2)

Country Link
KR (1) KR101639022B1 (fr)
WO (1) WO2016122171A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107460690A (zh) * 2017-08-21 2017-12-12 海信（山东）冰箱有限公司 一种洗衣机的驱动组件及波轮洗衣机
CN108866946A (zh) * 2018-05-29 2018-11-23 无锡小天鹅股份有限公司 滚筒洗衣机
KR102507109B1 (ko) * 2022-07-22 2023-03-06 김길영 다층 교류 발전기

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102549141B1 (ko) 2018-02-23 2023-06-30 삼성전자주식회사 의류 건조기 및 의류 건조기의 제조방법
KR102791282B1 (ko) * 2018-11-30 2025-04-08 엘지전자 주식회사 건조기
WO2022050748A1 (fr) * 2020-09-04 2022-03-10 Lg Electronics Inc. Séchoir
EP4357508A4 (fr) 2021-12-15 2024-12-18 Samsung Electronics Co., Ltd. Lave-linge et dispositif de traitement de vêtements

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050210604A1 (en) * 2004-03-24 2005-09-29 Diehl Ako Stiftung & Co. Kg Motor as a direct drive and method for installation of the motor
KR20090046067A (ko) * 2007-11-05 2009-05-11 주식회사 대우일렉트로닉스 세탁기 및 세탁기의 조립방법
KR101165411B1 (ko) * 2010-08-12 2012-07-16 주식회사 아모텍 드럼세탁기용 직결형 구동 장치 및 이를 이용한 드럼세탁기
KR20140119296A (ko) * 2013-03-28 2014-10-10 주식회사 아모텍 3결선 구조의 스테이터, 이를 이용한 싱글 로터형 ｂｌｄｃ 모터 및 그의 구동방법
KR20150008347A (ko) * 2013-07-12 2015-01-22 주식회사 아모텍 세탁기 구동장치 및 이를 구비한 세탁기와 그의 제어방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101063528B1 (ko) 2004-02-13 2011-09-08 엘지전자 주식회사 드럼 세탁기의 모터 설치 구조
KR20070066093A (ko) 2005-12-21 2007-06-27 주식회사 대우일렉트로닉스 드럼세탁기용 모터 구동 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050210604A1 (en) * 2004-03-24 2005-09-29 Diehl Ako Stiftung & Co. Kg Motor as a direct drive and method for installation of the motor
KR20090046067A (ko) * 2007-11-05 2009-05-11 주식회사 대우일렉트로닉스 세탁기 및 세탁기의 조립방법
KR101165411B1 (ko) * 2010-08-12 2012-07-16 주식회사 아모텍 드럼세탁기용 직결형 구동 장치 및 이를 이용한 드럼세탁기
KR20140119296A (ko) * 2013-03-28 2014-10-10 주식회사 아모텍 3결선 구조의 스테이터, 이를 이용한 싱글 로터형 ｂｌｄｃ 모터 및 그의 구동방법
KR20150008347A (ko) * 2013-07-12 2015-01-22 주식회사 아모텍 세탁기 구동장치 및 이를 구비한 세탁기와 그의 제어방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107460690A (zh) * 2017-08-21 2017-12-12 海信（山东）冰箱有限公司 一种洗衣机的驱动组件及波轮洗衣机
CN108866946A (zh) * 2018-05-29 2018-11-23 无锡小天鹅股份有限公司 滚筒洗衣机
CN108866946B (zh) * 2018-05-29 2023-08-22 无锡小天鹅电器有限公司 滚筒洗衣机
KR102507109B1 (ko) * 2022-07-22 2023-03-06 김길영 다층 교류 발전기

Also Published As

Publication number Publication date
KR101639022B1 (ko) 2016-07-13

Similar Documents

Publication Publication Date Title
WO2016122171A1 (fr) Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci
WO2016122170A1 (fr) Appareil d'entraînement de tambour, machine à laver à tambour comportant celui-ci, et procédé de fonctionnement de celui-ci
WO2014112839A1 (fr) Dispositif d'entraînement de moteur polyphasé, appareil et procédé d'entraînement de moteur pour machine à laver à l'aide dudit dispositif
WO2016186353A1 (fr) Appareil d'entrainement de machine à laver, et machine à laver le comprenant
WO2013147550A1 (fr) Stator possédant une structure de connexion à trois lignes, moteur bldc utilisant ledit stator, et procédé d'entraînement associé
KR101619472B1 (ko) 세탁기 구동장치 및 이를 구비한 세탁기
KR101704742B1 (ko) 세탁기 구동장치 및 이를 구비한 세탁기
WO2020149672A1 (fr) Machine à laver
WO2019022327A1 (fr) Moteur et procédé de commande de moteur, et machine à laver comprenant un moteur
US9988752B2 (en) Washing machine motor and washing machine comprising same
WO2013100440A1 (fr) Dispositif et procédé permettant d'entraîner un moteur de machine à laver
WO2021096143A1 (fr) Dispositif d'entraînement électrique de type moyeu
WO2016080770A1 (fr) Machine à laver et procédé de fonctionnement d'une machine à laver
WO2017200329A1 (fr) Dispositif d'entraînement de machine à laver, machine à laver ayant un tel dispositif et procédé d'entraînement de machine à laver
WO2019168375A1 (fr) Dispositif d'entraînement et machine à laver équipée dudit dispositif
WO2012057523A2 (fr) Moteur de type mince présentant une structure de dissipation thermique, et machine à laver adoptant un système d'entraînement direct
WO2015167255A1 (fr) Appareil d'entraînement de lave-linge et lave-linge le comportant
WO2015005752A1 (fr) Dispositif d'entraînement de machine à laver, machine à laver comportant celui-ci, et procédé de commande pour celui-ci
WO2019107871A1 (fr) Système d'entraînement de moteur et procédé de commande de ce dernier
WO2016003086A1 (fr) Machine à laver et son procédé de fonctionnement
WO2016003087A1 (fr) Machine à laver et son procédé de fonctionnement
WO2020009536A1 (fr) Machine de traitement de linge et son procédé de commande
KR20010097203A (ko) 펄세이터 방식 세탁기용 모터
EP3475476A1 (fr) Machine à laver
WO2015050397A1 (fr) Moteur de lave-linge et lave-linge comprenant ce dernier

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16743649

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16743649

Country of ref document: EP

Kind code of ref document: A1