WO2021225265A1 - Appareil de traitement de vêtements - Google Patents

Appareil de traitement de vêtements Download PDF

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Publication number
WO2021225265A1
WO2021225265A1 PCT/KR2021/002968 KR2021002968W WO2021225265A1 WO 2021225265 A1 WO2021225265 A1 WO 2021225265A1 KR 2021002968 W KR2021002968 W KR 2021002968W WO 2021225265 A1 WO2021225265 A1 WO 2021225265A1
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WO
WIPO (PCT)
Prior art keywords
tub
unit
rotor
drum
magnetic field
Prior art date
Application number
PCT/KR2021/002968
Other languages
English (en)
Korean (ko)
Inventor
이장우
정창욱
최동락
김성문
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2021225265A1 publication Critical patent/WO2021225265A1/fr

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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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal 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 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

Definitions

  • the present invention relates to a laundry treatment apparatus. More particularly, it relates to a laundry treatment apparatus for increasing efficiency by selectively operating a damping unit for reducing a rotational moment generated by a drum.
  • a laundry treatment apparatus is a device for removing foreign substances attached to laundry through the action of water and detergent.
  • the laundry treatment apparatus may be largely divided into a stirring type, vortex type, and drum type laundry treatment apparatus.
  • the agitation-type laundry treatment apparatus performs washing by rotating the washing rod rising from the center of the washing tub left and right, and the vortex-type laundry treatment apparatus uses the frictional force between the water flow and the laundry by rotating the disk-shaped rotary blade formed at the bottom of the washing tub left and right to perform laundry.
  • the drum type laundry treatment apparatus water detergent and laundry are put inside and the drum is rotated to wash.
  • the drum-type clothes treatment apparatus may be divided into a washing machine which performs a washing cycle for separating and removes foreign substances from clothes, and a dryer which performs a drying cycle for removing moisture from clothes.
  • the washing machine may provide a plurality of washing courses and washing options to wash clothes.
  • the washing course may form a cycle including a washing cycle for removing foreign substances from clothes, a rinsing cycle for separating foreign substances from clothes and detergent, and a dehydration cycle for removing moisture from clothes.
  • the washing option means adjusting the drum rotation speed (rpm), water temperature, water level, the intensity and degree of steam supply, etc., and the number of washing cycles, rinsing cycles, and spin-drying cycles when performing the washing course.
  • the washing option includes the number of repetitions of each cycle, the strength when performing each cycle, the rotational speed of the drum when performing each cycle, water temperature and water level in performing the washing cycle, rinsing cycle, and dehydration cycle. It may be a set algorithm or a control method for controlling at least any one or more of the degree, whether or not steam is supplied, and the duration of each stroke.
  • the rotation speed of the drum is set to be higher than that of the washing cycle or the rinsing cycle.
  • vibration or noise may be induced by the eccentricity of the laundry located inside the drum or the rotational moment of the drum itself.
  • the prior document discloses a configuration for preventing the tub from vibrating due to eccentric motion of the drum due to the application of a biased force to the rotating shaft of the drum when the drum is rotated in an unbalanced state in which the laundry is not evenly distributed in the drum and is biased to one side. do.
  • An embodiment of the present invention aims to match or align the center of the configuration for reducing the amount of eccentricity generated in the drum with the rotational axis of the drum.
  • An embodiment of the present invention aims to present a configuration that rotates in the opposite direction to the rotor in order to reduce vibration or noise caused by mass imbalance and rotational moment of the drum.
  • An embodiment of the present invention specifically aims to reduce vibration or noise generated in the dewatering process.
  • One embodiment of the present invention may provide a device for arbitrarily connecting and isolating the rotor and the reversing rotor using a solenoid and a friction difference in order to achieve the above object.
  • an embodiment of the present invention may provide a device in which the reversing rotor does not operate because the friction vehicle is not connected to the rotor and the reversing rotor during the washing cycle.
  • one embodiment of the present invention may provide a device that operates in a direction in which the reversing rotor receives a driving force and offsets the moment of the rotor as the friction vehicle is connected to the rotor and the reversing rotor during the dehydration cycle.
  • an embodiment of the present invention may provide a device that performs mechanically stable motion using the tapered friction difference even when the attraction by the solenoid acts on the friction wheel.
  • an embodiment of the present invention provides a cabinet in which an inlet is formed, a drum rotatably provided inside the cabinet, a tub accommodating the drum and storing wash water, and the drum coupled to the tub.
  • a driving unit that rotates the drum, an attenuator that is provided rotatably in the opposite direction to the drum to cancel a moment of rotation of the drum, and selectively connects the attenuation unit and the driving unit to obtain the power of the driving unit
  • a laundry treatment apparatus including a transmission unit that transmits the power to the attenuator or blocks the power of the driving unit from being transmitted to the attenuator.
  • the inlet may be formed in front of the cabinet, and the driving unit may be coupled to the rear surface of the tub.
  • a weight balancer may be provided in front of the tub to reduce vibrations generated from the drum or the tub.
  • the driving unit includes a stator coupled to the rear surface of the tub to form a rotating magnetic field, a rotor provided to surround the stator and rotating by the rotating magnetic field, and a rotating shaft transmitting the rotational force of the rotor to the drum, wherein the attenuation unit includes: Doedoe surrounding the outer peripheral surface of the rotor may be spaced apart from the outer peripheral surface of the rotor.
  • the transmission part may be positioned between the outer peripheral surface of the rotor and the attenuation part.
  • the transfer unit extends from the rear surface of the tub in a direction away from the rear surface of the tub, and passes between the attenuator and the outer peripheral surface of the rotor. It may include a friction difference coupled to the eastern part and the guide shaft to selectively contact the damping part and the driving part.
  • the tub may include a receiving portion recessed from the rear surface of the tub to accommodate the shaft moving portion.
  • the shaft moving part is seated in the receiving part and is formed of a magnetic field forming part that selectively forms a magnetic field, and is coupled to the magnetic field forming part and the guide shaft, respectively, and is formed of a conductor according to the magnetic field formed by the magnetic field forming part. It may include an elastic member for moving the guide shaft.
  • the magnetic field forming part may be formed of a solenoid.
  • the transfer unit includes a first guide rib that protrudes from the guide shaft and is coupled to the elastic member, and a second guide rib that is spaced apart from the rear surface of the tub from the first guide rib and protrudes from the guide shaft and is coupled to the friction difference. It may further include a guide rib.
  • the magnetic field forming unit may provide an attractive force or a repulsion force to the elastic member.
  • the magnetic field forming unit may be formed to be recessed toward the rear surface of the tub from one surface facing the attenuation unit to form a guide space in which a part of the guide shaft is movable according to the magnetic field formed by the magnetic field forming unit.
  • the friction difference may include a body selectively contacting the damping part and the outer peripheral surface of the rotor, and a cap protruding from the outer peripheral surface of the body to block all of the friction difference from being inserted between the damping part and the outer peripheral surface of the rotor.
  • the cap may be formed to protrude from the outer circumferential surface of the body and to protrude from the second guide rib at a position spaced apart from the rear surface of the tub.
  • the body may include a friction tapered portion having an outer diameter smaller toward the rear surface of the tub.
  • the rotor may include a rotor pad provided to surround at least a portion of the rotor, and the rotor pad may include a rotor tapered portion having a smaller outer diameter as it moves away from the rear surface of the tub.
  • a damping unit having a center coincident with or aligned with the rotation axis of the drum in a configuration for reducing vibration or noise generated from the drum.
  • the attenuation unit may be selectively operated during a process performed by the laundry treatment apparatus.
  • FIG. 1 is a cross-sectional view of a laundry treatment apparatus
  • FIG. 3 is an exploded perspective view of the attenuation unit
  • FIG. 8 is a view showing an operation process of the transmission unit.
  • FIG. 1 is a view showing a laundry treatment apparatus.
  • the laundry treatment apparatus 100 is provided in the cabinet 110 forming the exterior, the tub 120 in which the washing water is stored, and the tub 120 rotatably provided inside the tub 120 to store laundry or clothes.
  • the drum 130 to be used may include a driving unit 150 that rotates the drum 130 by applying a torque to the drum 130 .
  • the cabinet 110 is provided with an inlet 141 formed by opening one side, and the inlet 141 is rotatably coupled to the cabinet 110 and may be opened and closed by a door 140 provided therein.
  • the tub 120 may include a tub inlet 120a having one side open and communicating with the inlet 141 .
  • the tub 120 may be fixed inside the cabinet 110 by the tub support 113 .
  • the tub support 113 may be provided with a spring or damper capable of absorbing vibration or vibration of the tub 120 .
  • the door 140 , the inlet 141 , and the tub inlet 121 may all be positioned in front of the laundry treatment apparatus 100 .
  • a gasket 111 may be provided between the tub inlet 120a and the inlet 141 , and the gasket 111 may prevent the wash water located inside the tub 120 from leaking out of the tub 120 . have. In addition, the gasket 111 prevents the vibration of the tub 120 from being transmitted to the cabinet 110 , thereby preventing the vibration generated inside the laundry treatment apparatus 100 from being transmitted to the outside of the laundry treatment apparatus 100 . can do.
  • the tub 120 may receive washing water through the water supply unit 170 .
  • the water supply unit 170 includes a water supply hose 171 that connects the tub 120 to a water supply source (not shown) located outside the clothes treatment apparatus 100 , and a water supply valve that opens and closes the water supply hose 171 .
  • Including 173 may supply washing water to the tub 120 .
  • Wash water flowing through the water supply hose 171 may flow into the tub 120 through the detergent storage unit 14 in which the detergent is stored.
  • the detergent storage unit 14 may be located above the tub 120 , and includes a storage space 161 for storing detergent and a supply pipe 143 for communicating the storage space 161 with the tub 120 . can do.
  • the washing water supplied from a water supply source flows through the storage space 161 through the water supply hose 171 and enters the storage space 161 .
  • the stored detergent may come into contact with the wash water and be supplied to the tub 120 together with the wash water.
  • Wash water flowing into the tub 120 may be discharged to the outside of the cabinet 110 through the drain unit 180 .
  • the drain unit 180 communicates with the tub 120 to discharge the wash water located inside the tub 120 to the outside of the cabinet 110, and a drain hose 181 to induce or help the flow of wash water.
  • a drain pump 183 may be included.
  • the drum 130 may include a drum inlet 131 communicating with the tub inlet 120a. Accordingly, the laundry or clothes may be located inside the drum 130 sequentially through the door 140 , the inlet 141 , the tub inlet 121 , and the drum inlet 131 .
  • Laundry or clothes located inside the drum 130 may be in contact with washing water through the plurality of through holes 133 formed in the drum 130 . That is, the wash water stored in the tub 120 may flow into the drum 130 through the plurality of through-holes 133 formed in the drum 130 .
  • the drum 130 may be rotated by the driving unit 150 provided outside the tub 120 .
  • the driving unit 150 may include a stator 151 fixed to the tub 120 and forming a rotating magnetic field, and a rotor 153 rotating by the rotating magnetic field of the stator 151 .
  • the driving unit 150 may further include a rotation shaft 155 connecting the rotor 153 and the drum 130 to transmit the rotational force of the rotor 153 to the drum 130 .
  • the rotor 153 may be provided with a rotor through-hole 1533 formed through a portion of the rotor 153 to cool the rotor 153 and the stator 151 . (See Fig. 2)
  • the rotary shaft 155 is preferably connected to the drum 130 through the back surface of the tub 120, in this case, the back surface of the tub 120 may be provided with a bearing 123 for supporting the rotary shaft 155. have.
  • the rotor 153 may be provided to surround the stator 151 and may be provided as an outer-type rotating by a rotating magnetic field.
  • the clothes treatment apparatus 100 may provide a plurality of washing courses and washing options to wash clothes.
  • the washing course may form a cycle including a washing cycle for removing foreign substances from clothes, a rinsing cycle for separating foreign substances from clothes and detergent, and a dehydration cycle for removing moisture from clothes.
  • the washing option means adjusting the drum rotation speed (rpm), water temperature, water level, the intensity and degree of steam supply, etc., and the number of washing cycles, rinsing cycles, and spin-drying cycles when performing the washing course.
  • the washing option includes the number of repetitions of each cycle, the strength when performing each cycle, the rotational speed of the drum when performing each cycle, water temperature and water level in performing the washing cycle, rinsing cycle, and dehydration cycle. It may be a set algorithm or a control method for controlling at least any one or more of the degree, whether or not steam is supplied, and the duration of each stroke.
  • the pre-stored course may mean a washing option in which some or all of the plurality of strokes stored in the laundry treatment apparatus 100 itself, the washing courses consisting of the strokes, and the washing courses can be changed.
  • the rotation speed of the drum 130 is set to a high rpm compared to the rinsing cycle or the washing cycle.
  • the rotation speed of the drum 130 in the dehydration cycle is greater than the rotation speed of the drum 130 in the rinsing cycle and washing cycle.
  • Vibration and noise generated by the drum 130 during the dehydration cycle are transferred to the tub 120 , and the vibration or noise transferred to the tub 120 is transferred to the cabinet 110 , and the laundry treatment apparatus 100 . leaked to the outside of
  • damping unit 200 for offsetting the rotational moment of the drum 130 will be described with reference to FIG. 2 .
  • Figure 2 (a) is a perspective view of the attenuation unit 200
  • Figure 2 (b) is a front view of the attenuation unit 200 viewed from the rear.
  • the damping unit 200 offsets the rotational moment generated from the drum 130 by rotating in the opposite direction to the rotational direction of the drum 130 .
  • the damping unit 200 includes a flying wheel 210 that rotates in a direction opposite to the rotation direction of the drum 130 and a friction wheel 220 that transmits power to the flying wheel 210 .
  • the flying wheel 210 is spaced apart from the outer circumferential surface of the rotor 153 , and is provided to surround the outer circumferential surface of the rotor 153 . Accordingly, when the flying wheel 210 rotates in the opposite direction to the drum 130 , it is possible to sufficiently offset the excessive rotational moment generated by the drum 130 .
  • the flying wheel 210 may be formed in a substantially annular shape to include an inner peripheral surface and an outer peripheral surface.
  • the inner circumferential surface of the flying wheel 210 is provided to face the outer circumferential surface of the rotor 153, and the outer circumferential surface of the flying wheel 210 is spaced apart from the outer circumferential surface of the rotor 153 from the inner circumferential surface of the flying wheel 201. can be provided.
  • the friction wheel 220 transmits the power of the rotor 153 to the flying wheel 210 , respectively, to the rotor 153 and the flying wheel 210 so that the flying wheel 210 rotates in the opposite direction to the rotor 153 . provided to be in contact.
  • one side of the friction wheel 220 is in contact with the outer peripheral surface of the rotor 153 and the other side is in contact with the flying wheel 210 .
  • the other side of the friction wheel 220 is in contact with the inner peripheral surface of the flying wheel (210).
  • a plurality of friction wheels 220 may be provided.
  • the friction difference 220 located between the outer circumferential surface of the rotor 153 and the flying wheel 210 may transmit the rotational force of the rotor 153 to the flying wheel 210 through rolling motion.
  • the rotation direction of the friction wheel 220 is opposite to the rotation direction of the rotor 153
  • the flying wheel 210 which receives power from the friction vehicle 220 , is opposite to the rotation direction of the rotor 153 .
  • the attenuation unit 200 will be described in more detail with reference to FIG. 3 .
  • Figure 3 (a) is an exploded perspective view of the attenuation unit 200
  • Figure 3 (b) is a view showing a state in which the attenuation unit 200 is assembled.
  • the flying wheel 210 forms the exterior of the flying wheel 210, is provided in a substantially annular shape, and is provided inside the guide cover 211 and the guide cover 211 to offset the rotational moment of the drum 130 It may include a guide roller 213 for guiding the rotational movement of the guide cover (211).
  • the flying wheel 210 may further include a power transmission cover 215 on the inner circumferential surface of the guide cover 211 that receives power by the friction wheel 220 and transmits it to the guide cover 211 . .
  • the outer diameter of the power transmission cover 215 is preferably formed smaller than the outer diameter of the guide cover (211).
  • the power transmission cover 215 may be fixed to the guide cover 211 so as to rotate simultaneously when the guide cover 211 rotates.
  • one side of the power transmission cover 215 may be fixed to the guide cover 211 .
  • the other side of the power transmission cover 215 may be provided to be in contact with the friction wheel 220 .
  • the friction vehicle 220 may receive power from the rotor 153 and transmit power to the guide wheel 210 as well as transmit power to the power transmission cover 215 , and the power transmission cover Reference numeral 215 may assist in rotation of the guide cover 211 .
  • the attenuation unit 200 may further include a guide unit 230 coupled to the rear surface 129 of the tub 120 to guide the rotation of the flying wheel 210 .
  • the guide part 230 is fixed to the rear surface 129 of the tub 120 and a plate 231 accommodating the driving part 150, and the back surface of the tub 120 in the plate 231 ( 129) and a guider coupling part 233 that surrounds the driving part 150 and that is coupled to the guider coupling part 233 and that is coupled in a direction away from the driving part 150 may include a guider 235 that is in contact with the flying wheel 210. have.
  • the plate 231 may provide a space for accommodating the driving unit 150 .
  • the space for accommodating the driving unit 150 may be formed by cutting a portion of the plate 231 .
  • the guider coupling part 233 may be formed by being coupled from the plate 231 to the rear surface of the cabinet 110 in a direction closer to the plate 231 .
  • the guider coupling portion 233 may be formed integrally with the plate 231 .
  • the guider coupling part 233 may be positioned between the flying wheel 210 and the rotor 153 .
  • the guider 235 may be coupled to an outer circumferential surface of the guider coupling part 233 . Accordingly, the guider 235 may be formed to protrude from the outer peripheral surface of the guider coupling portion 233 .
  • the guider 235 is provided as a separate configuration from the guider coupling part 233 and may be coupled to the guider coupling part 233, but it is also possible to be integrally formed with the guider coupling part 233.
  • the guider 235 may be in contact with the guide roller 213 to guide the rotation of the guide roller 213 . That is, the guider 235 may be coupled toward the flying wheel 210 in the guider coupling portion 233 or may be formed to protrude toward the flying wheel 210 .
  • the guide unit 230 may guide the rotation of the flying wheel 210 .
  • the laundry treatment apparatus 100 may include the damping unit 200 to offset the rotational moment of the drum 130 , but vibration or noise generated through a separate configuration is not generated by the laundry treatment apparatus 100 . It can prevent leakage to the outside.
  • the weight balancer 300 for reducing vibration or noise generated in the laundry treatment apparatus 100 will be described with reference to FIG. 4 .
  • FIG. 4(a) is a perspective view of the laundry treatment apparatus 100 in which the weight balancer 300 is installed, viewed from the front side
  • FIG. 4(b) is the laundry treatment apparatus 100 in which the weight balancer 300 is installed, in a rear view This is the perspective view.
  • the weight balancer 300 may be coupled to the front surface of the tub 120 . However, it is preferable to be coupled at a position spaced apart from the tub inlet 121 to prevent interference with the tub inlet 121 .
  • the weight balancer 300 may include a first weight balancer 310 coupled to one side of the front surface of the tub 120 and a second weight balancer 320 coupled to the other side of the front surface of the tub 120 . have.
  • the first weight balancer 310 and the second weight balancer 320 are preferably formed to be symmetrical with respect to the tub inlet 121 .
  • the second weight balancer 320 may be located on the right with respect to the tub inlet 121 .
  • first weight balancer 310 and the second weight balancer 320 may be respectively located above and below the tub inlet 121 with respect to each other.
  • the weight balancer 300 may reduce vibration or noise generated by the laundry treatment apparatus 100 .
  • the attenuator 200 is a different configuration that performs a different role than the weight balancer 300 . That is, the attenuator 200 is located on the rear surface 129 of the tub 120 to reduce the rotational moment of the drum 130 to reduce vibration or noise generated from the drum 130 in advance.
  • the weight balancer 300 is configured to reduce the leakage of vibration or noise already generated in the laundry treatment apparatus 100 to the outside of the laundry treatment apparatus 100 .
  • FIG. 5 is a conceptual diagram of the attenuation unit 200 schematically illustrating the attenuation unit 200 .
  • the damping unit 200 must rotate as the rotor 153 rotates. This is because the damping unit 200 receives power from the rotor 153 without rotating using a separate power, and the friction wheel 220 is always in contact with the rotor 153 and the flying wheel 210 .
  • the rotational force of the rotor 153 may be dispersed and transmitted to the damping unit 200 and the drum 130 to cause inefficiency.
  • the transmission unit 400 includes a friction wheel 430 that receives the rotational force of the rotor 153 and transmits it to the damping unit 200 . Accordingly, the friction difference 220 described above with reference to FIGS. 2 to 5 is included in the damping unit 200 described above, whereas the friction wheel 430 described later in FIG. 6 or less is included in the transmission unit 400 . make it clear that
  • the attenuation unit 200 described above through FIGS. 2 to 5 rotated in the opposite direction to the drum 130 through the friction wheel 220 and the flying wheel 210, but the attenuation unit ( 200 is rotated by the friction difference 430 included in the transmission unit 400 .
  • the damping unit 200 described in FIGS. 6 to 8 means the configuration of the flying wheel 210 excluding the friction difference 220 described in FIGS. 2 to 5 .
  • the damping unit 200 described in FIGS. 6 to 8 refers to a configuration (eg, a flying wheel) that offsets the rotational moment of the drum 130 by rotation.
  • FIG. 6 is a view showing a coupling structure of the delivery unit 400
  • FIG. 7 is an exploded perspective view of the delivery unit 400 .
  • the transmission unit 400 determines whether the damping unit 200 rotates when the drum 130 rotates.
  • the attenuation unit 200 can rotate in the opposite direction to the rotation direction of the drum 130 when the drum 130 rotates, regardless of whether the drum 130 rotates. It is possible not to rotate.
  • the transmission unit 400 may selectively transmit the rotational force of the rotor 153 to the attenuation unit 200 .
  • the damping unit 200 rotates opposite to the rotational direction of the drum 130 .
  • the transmission unit 400 blocks the transmission of the rotational force of the rotor 153 to the attenuation unit 200 , the attenuation unit 200 does not rotate regardless of the rotation of the drum 130 .
  • the transmission unit 400 selectively transmits the power or rotational force of the rotor 153 between the attenuation unit 200 and the outer peripheral surface of the rotor 153 to the attenuation unit 200 .
  • the transmission unit 400 In order for the transmission unit 400 to selectively transmit the power or rotational force of the rotor 153 to the attenuation unit 200 , the transmission unit 400 selectively contacts the outer peripheral surface and the attenuation unit 200 of the rotor 153 . It includes a friction wheel 430 and a guide shaft 410 for selectively contacting the friction wheel 430 with the outer peripheral surface of the rotor 153 and the damping part 200 .
  • the guide shaft 410 extends from the rear surface 129 of the tub 120 toward the rear surface of the cabinet 110 and is formed to pass between the attenuator 200 and the outer peripheral surface of the rotor 153 .
  • the guide shaft 410 can move in the front-rear direction between the damping part 200 and the outer peripheral surface of the rotor 153 .
  • the guide shaft 410 may move toward the front surface of the tub 120 between the damping unit 200 and the outer peripheral surface of the rotor 153 or move in a direction away from the front surface of the tub 120 .
  • one end of the guide shaft 410 may be coupled to the rear surface 129 of the tub 120 , and the other end may be coupled to the rear surface of the cabinet 110 .
  • one end of the guide shaft 410 may be coupled to the rear surface 129 of the tub 120 and the other end may be formed as a free end.
  • one end of the guide shaft 410 may be coupled to the rear surface of the cabinet 110 , and the other end of the guide shaft 410 may be formed as a free end.
  • both ends of the guide shaft 410 are coupled to the rear surface 129 of the tub 120 and the rear surface of the cabinet 110, respectively, the guide shaft 410 can move more stably.
  • the manufacturing cost may increase.
  • the transfer unit 400 further includes an axis moving unit 420 for moving the guide shaft 410 away from the rear surface 129 of the tub 120 or closer to the rear surface 129 of the tub 120 . do.
  • the shaft moving part 420 may include at least one of the friction difference 430 selectively contacting the outer peripheral surface and the damping part 200 of the rotor 153 or the outer peripheral surface of the rotor 153 and the damping part 200 . It is a means for moving the guide shaft 410 so as to be spaced apart.
  • the shaft moving part 420 may be provided in various shapes within the range for performing the above-described functions.
  • the shaft moving part 420 may use a magnetic force.
  • the shaft moving part 420 moves the guide shaft 410 by using magnetic force
  • the shaft moving part 420 is connected to the magnetic field forming part 421 and the magnetic field forming part 421 for forming a magnetic field. Accordingly, an elastic member 423 for moving the guide shaft 410 may be included.
  • the magnetic field forming part 421 may be provided as a solenoid.
  • the elastic member 423 is preferably formed of a conductor to respond to the magnetic force formed by the magnetic field forming part 421 .
  • the elastic member 423 is preferably coupled to the guide shaft 410 in order to move the guide shaft 410 by the magnetic force formed by the magnetic field forming part 421 .
  • the elastic member 423 may be coupled to the guide shaft 410 and may be configured to transmit a magnetic force formed by the magnetic field forming unit 421 to the guide shaft 410 .
  • One side of the elastic member 423 may be coupled to the magnetic field forming part 421 , and the other side of the elastic member 423 may be coupled to the guide shaft 410 .
  • the elastic member 423 may be provided in a spring shape to have an elastic force.
  • the diameter of the elastic member 423 is preferably larger than the diameter of the guide shaft 410 . This is because when the diameter of the elastic member 423 is larger than the diameter of the guide shaft 410 , the elastic member 423 may be provided to surround the guide shaft 410 .
  • the magnetic field forming part 421 preferably forms a guide space 4211 in which a part of the guide shaft 410 is movable.
  • the guide space 4211 may be recessed from one surface facing the attenuation part 200 of the magnetic field forming part 421 to provide a space in which a part of the guide shaft 410 can move.
  • the diameter of the guide space 4211 is preferably formed larger than the diameter of the guide shaft 410 .
  • the diameter of the guide space 4211 is smaller than the diameter of the elastic member 423 .
  • the elastic member 423 may be coupled to the magnetic field forming part 421 to surround the guide space 4211 , and a portion of the guide shaft 410 in the inner space of the elastic member 423 . It may be positioned so that it penetrates.
  • the guide shaft 410 may include a first guide rib 411 coupling the elastic member 423 to the guide shaft 410 .
  • the first guide rib 411 may protrude from an outer circumferential surface of the guide shaft 410 to form a space in which the elastic member 423 is coupled.
  • the diameter or outer diameter of the first guide rib 411 is preferably larger than the diameter of the elastic member 423 .
  • the guide shaft 410 includes the first guide rib 411
  • one end of the elastic member 423 is coupled to the first guide rib 411
  • the other end of the elastic member 423 is the It is possible to be coupled to the magnetic field forming unit 421 .
  • the space between the rear surface 129 of the tub 120 and the rear surface of the cabinet 110 is limited, and in particular, the space between the rear surface 129 of the tub 120 and the attenuator 200 is more limited. Considering that there is no choice, it is possible to increase the utilization of space in one example of the above-described shaft moving unit 420 .
  • the magnetic field forming unit 421 may be fixed to the rear surface 129 of the tub 120 .
  • the tub 120 may include a accommodating part recessed in the rear surface 129 of the tub 120 to accommodate the magnetic field forming part 421 .
  • the shaft moving part 420 can move the guide shaft 410 and the friction wheel 430 .
  • the shaft moving part 420 may move the guide shaft 410 and the friction difference 430 in the front-rear direction.
  • the front-rear direction refers to a direction from the rear surface 129 of the tub 120 to the rear surface of the cabinet 110 or a direction from the rear surface of the cabinet 110 to the rear surface 129 of the tub 120 .
  • front-rear direction may refer to both directions of a straight line connecting the rear surface 129 of the tub 120 from the front surface of the tub 120 by the shortest distance.
  • the friction wheel 430 is coupled to the guide shaft 410 , and may be coupled to a position spaced apart from the shaft moving part 420 .
  • the friction wheel 430 may include a body 433 coupled to the guide shaft 410 and a cap 435 protruding from an outer circumferential surface of the body 433 .
  • the body 433 may include a shaft receiving portion 431 formed to pass through the body 433 so that a portion of the guide shaft 410 passes therethrough. Accordingly, the body 433 may be coupled to the guide shaft 410 .
  • the cap 435 may protrude from the outer circumferential surface of the body 433 to block the entire friction wheel 430 from being inserted between the damping unit 200 and the outer circumferential surface of the rotor 153 .
  • the outer diameter of the cap 435 is larger than the space formed between the damping part 200 and the outer peripheral surface of the rotor 153 .
  • the transmission unit 400 includes a second guide rib 413 coupled to the friction wheel 430 .
  • the second guide rib 413 is formed to protrude from the outer peripheral surface of the guide shaft 410, and is formed at a position spaced apart from the first guide rib 413 in a direction away from the rear surface 129 of the tub 120. can be
  • the body 433 may be in contact with the second guide rib 413 to be fixed to rotate together with the guide shaft 410 .
  • the cap 435 may be formed to protrude from the second guide rib 413 on the outer circumferential surface of the body 433 . Accordingly, the cap 435 may be spaced apart from the second guide rib 413 .
  • the transmission unit 400 may include a friction fixing unit 440 coupled to the friction wheel 430 to block the linear movement of the friction wheel 430 .
  • the second guide rib 413 is in contact with one end of the friction vehicle 430
  • the friction fixing part 440 is in contact with the other end of the friction vehicle 430 .
  • the friction difference 430 is prevented from moving in a straight line toward or away from the tub 120 with respect to the guide shaft 410 .
  • FIG. 8( a ) shows a state in which the power of the rotor 153 is not transmitted to the damping unit 200 by the transmission unit 400
  • FIG. 8 ( b ) shows the rotor 153 by the transmission unit 400
  • ) is a diagram showing a state in which the power is transmitted to the damping unit 200 .
  • the transmission unit 400 may block the transmission of power or rotational force of the rotor 153 to the attenuation unit 200 .
  • the transfer unit 400 may block the cap 430 from contacting at least one of the damping unit 200 and the rotor 153 .
  • the magnetic field forming unit 421 may provide a repulsion force to the elastic member 423 so that the elastic member 423 moves away from the rear surface 129 of the tub 120 .
  • the friction difference 430 is provided to be spaced apart from at least one of the damping part 200 and the outer peripheral surface of the rotor 153 .
  • the friction difference 430 may be provided to be spaced apart from both the damping unit 200 and the rotor 153 . have.
  • the transmission unit 400 cannot transmit the power or rotational force of the rotor 153 to the attenuation unit 200 . Accordingly, even when the rotor 153 rotates, the damping unit 200 may be blocked from rotating.
  • the transmission unit 400 may transmit the power or rotational force of the rotor 153 to the attenuation unit 200 .
  • the transmission unit 400 may allow the friction difference 430 to contact the damping unit 200 and the outer peripheral surfaces of the rotor 153 , respectively.
  • the magnetic field forming unit 421 may provide an attractive force to the elastic member 423 so that the elastic member 423 is closer to the rear surface 129 of the tub 120 .
  • the friction difference 430 is provided to contact the damping part 200 and the outer peripheral surfaces of the rotor 153 , respectively.
  • the The friction difference 430 may include a tapered shape.
  • the body 433 may include a friction tapered portion 437 having a smaller outer diameter toward the rear surface 129 of the tub 120 .
  • the friction tapered portion 437 may have a larger outer diameter as it approaches the cap 435 , and has a smaller outer diameter as it approaches the tub 120 .
  • the cap 435 may be formed in a portion of the friction tapered portion 437 having a larger outer diameter.
  • the friction tapered part 437 may increase the degree to which the friction difference 430 transmits the power or rotational force of the rotor 153 to the damping part 200 .
  • the friction tapered portion 437 may increase the degree of contact between the friction difference 430 and the outer peripheral surfaces of the damping portion 200 and the rotor 153 .
  • the friction tapered portion 437 has the friction difference 430 in contact with the damping portion 200 and the outer peripheral surfaces of the rotor 153, even when the cap 435 is in contact with the damping portion 200. can be prevented from interfering with
  • the cap 435 may always maintain a spaced apart state from the damping unit 200 on one side facing the cabinet 110 .
  • the friction tapered portion 437 may increase the efficiency of power transmission.
  • the attractive force formed by the magnetic field forming unit 421 brings the cap 435 into contact with the attenuation unit 200 , a loss corresponding to the amount of contact between the cap 435 and the attenuation unit 200 occurs. am.
  • the rotor 153 may include a tapered portion having a shape corresponding to the friction tapered portion 437 on the outer peripheral surface of the rotor 153 .
  • the rotor 153 may include a rotor pad 1531 provided to surround at least a portion of the rotor 153 , and a portion of the rotor pad 1531 has a shape of the friction tapered portion 437 .
  • a rotor tapered portion 1531a corresponding to that may be formed.
  • the rotor tapered portion 1531a may have a smaller outer diameter as it moves away from the rear surface 129 of the tub 120 .
  • the friction tapered portion 437 is in contact with the rotor tapered portion 1531a to further increase the efficiency of transmitting the rotational force or power of the rotor 153 to the damping portion 200 .
  • the magnetic field forming unit 421 may provide an attractive force to the elastic member 423 , but may not provide a separate force.
  • the elastic member 423 when the elastic member 423 is provided in a spring shape, the elastic member 423 may have an elastic force due to the shape itself. In other words, even if the elastic member 423 does not receive a separate force from the magnetic field forming unit 421 , the friction wheel 430 is spaced apart from the damping unit 200 and the rotor 153 . ) may provide a force in a direction away from the rear surface 129 of the tub 120 .
  • the process of controlling the magnetic field forming unit 421 may be easier. This is because, when the elastic force provided by the elastic member 423 is used, the magnetic field forming part 421 only needs to provide an attractive force to the elastic member 423 .
  • the shaft moving part 420 may be formed on the rear surface of the cabinet 110 to selectively bring the friction difference 430 into contact with the damping part 200 and the rotor 153 .
  • the shaft moving part 420 is formed on the rear surface of the cabinet 110 to move the guide shaft 410
  • the friction difference 430 is the damping part 200 and the tub 120 . It will be located in the space between the back surfaces 129 .
  • the transfer unit 400 can reduce the rotational moment generated from the drum 130 by connecting the damping unit 200 to the driving unit 150, particularly during the dehydration cycle.
  • the transfer unit 400 may block the connection between the damping unit 200 and the driving unit 150 in a stroke other than the dehydration stroke, so that the transfer unit 400 may not rotate regardless of the rotation of the drum 130 .

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

Abstract

La présente invention concerne un appareil de traitement de vêtements comprenant une partie de transmission qui relie de manière sélective une partie d'atténuation destinée à réduire la quantité d'excentricité d'un tambour vers une partie d'entraînement, améliorant ainsi l'efficacité de lavage.
PCT/KR2021/002968 2020-05-04 2021-03-10 Appareil de traitement de vêtements WO2021225265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200053187A KR102304190B1 (ko) 2020-05-04 2020-05-04 의류처리장치
KR10-2020-0053187 2020-05-04

Publications (1)

Publication Number Publication Date
WO2021225265A1 true WO2021225265A1 (fr) 2021-11-11

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KR (1) KR102304190B1 (fr)
WO (1) WO2021225265A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026408A (ja) * 2004-07-20 2006-02-02 Lg Electronics Inc ドラム洗濯機及びそのベアリングハウジング構造
KR100664070B1 (ko) * 2005-09-06 2007-01-03 엘지전자 주식회사 진동 저감형 모터의 고정자 및 이를 구비한 드럼 세탁기
KR20130052377A (ko) * 2011-11-11 2013-05-22 삼성전자주식회사 진동 저감 장치를 갖춘 세탁기 및 그 진동 저감 방법
KR20130077981A (ko) * 2011-12-30 2013-07-10 동부대우전자 주식회사 드럼세탁기 및 그 제어방법
KR20150054128A (ko) * 2013-11-11 2015-05-20 동부대우전자 주식회사 세탁기의 세탁제어 장치 및 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026408A (ja) * 2004-07-20 2006-02-02 Lg Electronics Inc ドラム洗濯機及びそのベアリングハウジング構造
KR100664070B1 (ko) * 2005-09-06 2007-01-03 엘지전자 주식회사 진동 저감형 모터의 고정자 및 이를 구비한 드럼 세탁기
KR20130052377A (ko) * 2011-11-11 2013-05-22 삼성전자주식회사 진동 저감 장치를 갖춘 세탁기 및 그 진동 저감 방법
KR20130077981A (ko) * 2011-12-30 2013-07-10 동부대우전자 주식회사 드럼세탁기 및 그 제어방법
KR20150054128A (ko) * 2013-11-11 2015-05-20 동부대우전자 주식회사 세탁기의 세탁제어 장치 및 방법

Also Published As

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