WO2018236159A1 - Laundry handling apparatus - Google Patents

Laundry handling apparatus Download PDF

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Publication number
WO2018236159A1
WO2018236159A1 PCT/KR2018/007002 KR2018007002W WO2018236159A1 WO 2018236159 A1 WO2018236159 A1 WO 2018236159A1 KR 2018007002 W KR2018007002 W KR 2018007002W WO 2018236159 A1 WO2018236159 A1 WO 2018236159A1
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WO
WIPO (PCT)
Prior art keywords
shaft
impeller
pulsator
coupling
gear
Prior art date
Application number
PCT/KR2018/007002
Other languages
French (fr)
Korean (ko)
Inventor
김동철
김영종
유인식
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 WO2018236159A1 publication Critical patent/WO2018236159A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D06F17/08—Driving arrangements for the impeller
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/24—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 vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings

Definitions

  • the present invention relates to a laundry processing apparatus, and more particularly, to a laundry processing apparatus in which an impeller is provided below a pulsator and the pulsator and the impeller are rotated by a motor.
  • a laundry processing apparatus separates contaminants from clothes, bedding, etc. (hereinafter, abbreviated as “laundry”) by using physical action such as chemical decomposition of water and detergent and friction between water and laundry Device.
  • Such laundry processing apparatuses are classified into a top loading system in which washing water is contained in an outer bath and an inner bath for accommodating laundry is rotated around a vertical axis and a front loading system in which the laundry is rotated around a horizontal axis do.
  • a top loading type laundry processing apparatus is provided with a pulsator in the inner tank. By impinging on the laundry by the rotation of the pulsator, contamination of the laundry is more positively removed.
  • a circulation pump for feeding water discharged from the outer tank and a circulation channel for discharging the water fed by the circulation pump into the inner tank are provided outside the outer tank.
  • This structure has the advantage of promoting the dissolution of the detergent by circulating water along the circulating flow path and improving the washing performance by evenly washing the detergent in the laundry, but the manufacturing cost is increased due to the circulation pump .
  • Conventional Technique 1 Korean Patent Laid-Open Publication No. 2013-0049094 discloses a washing machine comprising a pulsator rotatably installed in a drum, and a centrifugal blade portion provided below the pulsator to form an ejection pressure by a centrifugal force,
  • the pulsator and the centrifugal blade portion are rotated at the same speed, so that the rotational speed of the centrifugal blade portion must be increased for sufficient water flow.
  • the load applied to the pulsator There is a limit to increase the rotation speed.
  • a first shaft for rotating the centrifugal bulldade is a hollow shaft
  • a second shaft for rotating the pulsator is inserted in the first shaft, It may be considered to rotate the shaft and the second shaft at different speeds. In this case, it is necessary to arrange the bearing supporting the rotation of the second shaft at a proper position so that the total outer diameter of the double shaft is not increased.
  • the impeller rotation shaft is slimmed by disposing a bearing for supporting the pulsator rotation shaft outside the impeller rotation shaft.
  • the laundry treatment apparatus of the present invention comprises: an outer tank containing laundry water; an inner tank which accommodates the laundry and is rotatably provided in the outer tank; a pulsator rotatably provided in the inner tank; An impeller rotatably disposed on the lower side of the pulsator in the inner tank, an impeller connecting shaft connected to the impeller and having a first hollow through which the pulsator connecting shaft passes, And a planetary gear train for transmitting the rotation of the drive shaft and rotating the pulsator connection shaft and the impeller connection shaft at different speeds.
  • the planetary gear train comprises a ring gear, a first sun gear disposed inside the ring gear and rotated by the drive shaft, a plurality of pinion gears rotated by the first sun gear and revolving along the ring gear, A second sun gear disposed on the upper side of the first sun gear and rotated by the plurality of pinion gears, a second sun gear coupled to the pulsator connecting shaft, rotatably supporting the plurality of pinion gears, And a carrier which is rotated as the gear is idled to rotate the pulsator connecting shaft.
  • the laundry processing apparatus is characterized in that the lower end portion is coupled to the center of the second sun gear, the upper end portion is coupled to the impeller coupling shaft, and when the second sun gear is rotated by the plurality of pinion gears, And an impeller connecting shaft coupler for rotating the impeller connecting shaft.
  • the impeller coupling shaft coupler may include a coupler body having a second hollow through which the pulsator connecting shaft passes, and an outer circumferential surface of the pulsator connecting shaft, the inner circumferential surface of the coupler body defining the second hollow, And a bearing for supporting the data connection shaft.
  • the lower end of the impeller coupling shaft is inserted into the coupler main body in a region spaced from the outer circumferential surface of the pulsator connecting shaft corresponding to the thickness of the bearing, which is provided on the upper portion of the bearing receiving portion.
  • the laundry processing apparatus of the present invention is characterized in that, in the structure in which the pulsator connection shaft is inserted into the hollow shaft coupling impeller, the bearing supporting the pulsator coupling shaft is disposed outside the impeller coupling shaft, The distance between the outer circumferential surfaces of the pulsator connecting shafts can be reduced and the outer diameter of the impeller connecting shaft can be prevented from being increased more than necessary.
  • the present invention provides a coupler for connecting a sun gear of a planetary gear train to the impeller coupling shaft and a bearing for supporting the pulsator coupling shaft in the coupler, wherein the bearing is located lower than the impeller coupling shaft,
  • the pulsator connection shaft can be supported by the bearing without disposing the bearing between the pulsator connection shaft and the pulsator connection shaft.
  • FIG. 1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • Figure 3 is an exploded perspective view of the assembly shown in Figure 2;
  • FIG. 4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig.
  • FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention.
  • Fig. 7 is an enlarged view of a part of Fig.
  • FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG.
  • FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • 11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig.
  • FIG. 14 is a perspective view showing the carrier.
  • 16 schematically shows the operation of the planetary gear train when the internal gear connection shaft and pulsator rotate at the same speed.
  • Figure 17 shows another embodiment of pulsator.
  • FIG. 1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1.
  • FIG. Figure 3 is an exploded perspective view of the assembly shown in Figure 2; 4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig. 5 shows a state in which the pulsator is separated from the base.
  • FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention.
  • Fig. 7 is an enlarged view of a part of Fig.
  • FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG. FIG.
  • FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG.
  • FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7.
  • FIG. 11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig. 14 is a perspective view showing the carrier.
  • the laundry processing apparatus includes a casing 1, 2, 3 forming an outer appearance and a space for accommodating the outer tank 40 inside .
  • the casings 1, 2 and 3 may include a casing base 2, a cabinet 1, and a top cover 3.
  • the casing base 2 has a substantially rectangular horizontal shape.
  • the cabinet 1 has a front surface, a left surface, a right surface and a rear surface, and the upper surface and the lower surface are supported by the casing base 2 in an open box form.
  • the top cover 3 is coupled to an open upper surface of the cabinet 1, and a charging port through which laundry is charged is formed at a substantially central portion.
  • a door (not shown) for opening and closing the inlet may be rotatably coupled to the top cover 3.
  • the control panel 4 may be provided on the top cover 3.
  • the control panel 4 includes an input unit (for example, a button, a dial, a touch pad, etc.) for receiving various control commands for controlling the operation of the laundry processing apparatus from the user, a display unit for visually displaying the operating state of the laundry processing apparatus (E. G., LCD, LED display, etc.).
  • an input unit for example, a button, a dial, a touch pad, etc.
  • a display unit for visually displaying the operating state of the laundry processing apparatus (E. G., LCD, LED display, etc.).
  • the outer tub 40 is for containing wash water and can be suspended within the casings 1, 2 and 3 by means of suspensions 5.
  • the upper end of the suspension 5 is pivotally coupled to the top cover 3 and the lower end of the suspension 5 is coupled to the outer tub 40.
  • a spring for resiliently supporting the outer tank 40 may be provided at the lower end of the suspension 5.
  • the suspensions 5 may be provided at four corners of the cabinet 1, respectively.
  • the laundry treatment apparatus may include at least one water supply pipe (8) for guiding water supplied from an external water source such as a faucet.
  • the at least one water supply pipe 8 may include a cold water supply pipe supplied with cold water from an external water source and a hot water supply pipe supplied with hot water.
  • the water supplied through each of the water supply pipes flows into the water supply valve assembly 7.
  • the water supply valve assembly 7 may include at least one water supply valve.
  • Each of the water supply valves is connected to the detergent supply mechanism (9). When the at least one water supply valve is opened under the control of the control unit 36, water is supplied to the detergent supply mechanism 9 through the opened water supply valve.
  • the detergent supply mechanism 9 is provided with a divided space containing additive such as laundry detergent, fabric softener and bleach, and the additive is discharged together with the water supplied to the space through the at least one water supply pipe 8 do.
  • the water in which the discharged additive is dissolved is supplied into the outer tank 40 and / or the inner tank 50.
  • control unit 36 controls not only the water supply valve but also various electrical components constituting the laundry processing apparatus, and may include a CPU for such control and a memory for storing various data for control.
  • control unit 36 controls the respective components (for example, the driving unit 6, the clutch 37, etc.) provided in the laundry processing apparatus unless otherwise specified
  • a drainage bellows 21 for draining water from the outer tank 40 and a drain valve 10 for interrupting the drainage bellows 21 can be provided.
  • the drainage bellows 21 is connected to the pump 29 and water can be supplied to the pump 29 through the drainage bellows 21 when the drainage valve 10 is opened. The water thus introduced into the pump 29 is discharged to the outside of the laundry processing apparatus through the drainage hose 11 when the pump 29 is operated.
  • the outer tank 40 may include a bottom tread 41 forming the bottom and a cylindrical outer tank side portion 42 extending upward from the bottom tread 41.
  • the outer tub 40 may be formed by injecting synthetic resin.
  • the outer tub bottom 41 and the outer tub side 42 are integrally formed.
  • Through-holes through which the connection shafts 340, 350 and 121 (see Figs. 7 to 8) described later pass are formed at the substantially center of the outer tread bottom 41.
  • the outer cover (28) may be provided on the open upper surface of the outer tank (40).
  • the outer cover 28 may be formed in the form of a ring having a central opening for the entry and exit of laundry.
  • an inner tub 50 which receives the laundry and is rotated about a vertical axis, may be disposed.
  • the inner tub 50 may include a ring-shaped inner tub base 51 having a central opening and a cylindrical drum 52 having a lower end coupled to the inner tub base 51.
  • a plurality of through holes may be formed in the drum 52, and water may be exchanged between the inner tub 50 and the outer tub 40 through the through holes.
  • the material of the inner tank 50 is preferably a metal, and preferably stainless steel, but is not limited thereto.
  • a balancer 22 for correcting the eccentricity caused when the inner tank 50 rotates may be provided at the upper end of the drum 52.
  • the balancer 22 is filled with a fluid or a mass in a ring-shaped space. When the inner tank 50 is biased to one side, the fluid or mass is moved to the opposite side to correct eccentricity (or unbalance).
  • a hub 31 is coupled to the bottom surface of the inner tub base 51.
  • the inner tub base 51 is concave downward from the upper end where the upper surface is engaged with the drum 52, and the impeller 70 is disposed in the concave space.
  • the pulsator 26 is disposed above the impeller 70.
  • the hub 31 is disposed between the inner tub base 51 and the outer tub bottom 41 and has a substantially circular shape and an axial passage hole 31a through which the inner tubular connecting shaft 121 described later passes.
  • a plurality of through holes 31h may be formed in the hub 31 along the circumference of the shaft passage 31a so that water may flow between the outer tub 40 and the inner tub 50.
  • the impeller 70 can be rotated by the impeller connecting shaft 350 (see Figs. 7 to 8).
  • the impeller 70 includes a substantially circular swash plate 71 formed at the center thereof with an impeller hub 72 coupled to the impeller coupling shaft 350, And at least one blade 73 that press-feeds the washing water radially (or radially outward) when the rotating plate 71 is rotated.
  • the pulsator 26 includes a substantially circular washing plate 26a formed with a pulsator hub 26b coupled to a pulsator connecting shaft 340 at a central portion thereof, And a plurality of water flow forming ribs 26c radially disposed about the pulsator hub 26b.
  • the washing plate 26a may be disposed in the concave portion of the inner tub base 51 and is preferably formed larger than the impeller 70 so that the impeller 70 is completely obscured when viewed from above.
  • a plurality of through holes 26h (see FIG. 2) communicating upper and lower spaces of the washing plate 26a can be formed on the washing plate 26a.
  • the driving unit 6 is to provide a driving force for rotating the pulsator 26, the impeller 70 and / or the inner tank 50.
  • the driving unit 6 can be coupled with the outer tub 40 by the bearing housing 25.
  • the driving unit 6 may include a motor for rotating the driving shaft 310 (see Figs. 7 to 8). Since the motor is capable of speed control, a brushless direct current motor (BLDC motor) is suitable, but not necessarily limited thereto.
  • BLDC motor brushless direct current motor
  • the motor is an outer rotor type and may include a stator 6a wound with an induction coil, a permanent magnet 6b attached to an inner circumferential surface thereof, and a rotor 6c coupled to the rotation axis of the motor.
  • the power train 100 transmits the rotational force of the driving unit 6 to rotate the pulsator connecting shaft 340, the impeller connecting shaft 350, and / or the inner tubular connecting shaft 121).
  • the pulsator connecting shaft 340 and the impeller connecting shaft 350 are rotated together by the power transmitting apparatus 100 but the rotational speeds may be different from each other.
  • the power transmitting apparatus 100 is provided with the driving shaft 310, And a planetary gear train 200 for outputting the rotational speed input through the output shaft 310 at a rotation speed different from that of the drive shaft 310.
  • the power transmission apparatus 100 will be described later in more detail.
  • the clutch 37 interrupts the power transmitted from the drive unit 6 to the inner tubular connection shaft 121. Since this clutch 37 is widely used in the technical field of the laundry processing apparatus, detailed description thereof will be omitted. (For example, Korean Patent Publication No. 10-2006-0032747, Korean Patent Publication No. 10-2008-0092023, etc.)
  • the clutch 37 can be selectively operated in a pumping mode or an anti-rotation mode.
  • the pulsator connecting shaft 340 and the impeller connecting shaft 350 are connected to each other by the planetary gear train 200 when the clutch 37 is in the pumping mode and the inner connecting shaft 121 is stopped (or unrotated) Is rotated at a predetermined speed ratio (W3: W1, W1> W3). (See Fig. 15).
  • both of the pulsator connecting shaft 340, the impeller connecting shaft 350, and the inner tubular connecting shaft 121 are rotated at the same speed W1 at the time of the clutch 37 in the internal rotation mode. (See Fig. 16).
  • a circulation injection mechanism 60 for guiding the centrifugal water flow formed by the rotation of the impeller 70 upward and discharging it into the inner tank 50 may be provided.
  • the circulation injection mechanism 60 is provided with a connecting duct 61 between the connecting duct 61 formed with the inlet port 61h through which the water flow formed by the rotation of the impeller 70 is formed and the inner peripheral surface of the drum 52, And a guide duct 62 forming a rising guide passage 62a communicating with the guide duct 62a. The water flow is guided along the space 62c between the rising guide passage 62a and the inner peripheral surface of the drum 52.
  • the guide duct 62 may include a discharge portion 62b having a discharge port 62h for discharging the water supplied through the rising guide passage 62a into the inner tank 50.
  • the discharge portion 62b may be provided with a filter (not shown) for collecting foreign matter such as a lint floating in the water stream.
  • the inner tub base 51 may include a ring-shaped lower rim portion 51c defining an area in which the impeller 70 is disposed and an upper rim portion 51b defining an area in which the pulsator 26 is disposed.
  • the lower end of the upper rim portion 51b is connected to the upper end of the lower rim portion 51c by the ring-shaped surface 51d and is disposed outside the lower rim portion 51c by a distance corresponding to the width of the surface 51d.
  • the lower rim portion 51c may be formed with a circulation water outlet 51h1 through which water is discharged from the inner tank 50 when the impeller 70 rotates.
  • the connecting duct 61 is disposed outside the inner tank 50 and has one end formed with the inlet 61h connected to the circulating water outlet 51h1.
  • the inner tub base 51 may further include a ring-shaped duct coupling portion 51a (see FIG. 3) extending from the upper end of the upper rim portion 51b to the outer peripheral side of the inner tub base 51.
  • a duct connecting hole 51h2 may be formed in the duct connecting portion 51a.
  • the guide duct 62 may be a separate component from the connecting duct 61 and may be connected to the connecting duct 61 through the duct connecting hole 51h2.
  • On the inner circumferential surface of the duct connecting portion 51a a plurality of upward projecting portions 51e may be formed along the circumferential direction.
  • the driven shaft 132 When the driven shaft 132 is coupled to the drive shaft 310 by the clutch 37, the driven shaft 132 and the drive shaft 310 are rotated together. Conversely, when the clutch 37 is rotated When the driven shaft 132 is disengaged from the drive shaft 310, the drive shaft 310 is rotated while the driven shaft 132 is stopped.
  • the power transmitting apparatus 100 transmits the power of the driving unit 6 to the pulsator 26 and the impeller 70, and the pulsator 26 and the impeller 70 And a planetary gear train 200 for rotating the planetary gear train at a speed.
  • the impeller 70 is rotated faster than the pulsator 26.
  • the bearing housing 25 may include an upper housing 23 coupled with the bottom of the outer tank 41 and a lower housing 24 to which the driving unit 6 is coupled.
  • the upper housing 23 has a cylindrical coupling tube portion 23a inserted into a through hole formed at the center of the outer tub bottom portion 41 and a lower tubular portion 23b extending outwardly from the outer peripheral surface of the coupling tube portion 23a, And an engaging plate portion 23b fixed to the engaging portion 23b.
  • the inner tubular connection shaft 121 passes through the coupling tube portion 23a and the bearing 375 is disposed between the inner peripheral surface of the coupling tube portion 23a and the outer peripheral surface of the inner tubular connection shaft 121.
  • the outer circumferential surface defining the outer diameter is coupled with the inner circumferential surface of the coupling tube portion 23a and the inner circumferential surface defining the inner diameter is coupled with the outer circumferential surface of the inner tubular connecting shaft 121.
  • the bearing 375 is provided with rolling members such as balls and rollers between the outer circumferential surface defining the outer diameter and the inner circumferential surface defining the inner circumferential surface so that when the inner circumferential connecting shaft 121 is rotated, The specified inner circumferential surface can be rotated with respect to the outer circumferential surface defining the outer diameter.
  • the lower housing 24 is disposed on the lower side of the upper housing 23 so as to form a space in which the power transmission device 100 is received between the lower housing 24 and the upper housing 23.
  • a coupling member such as a screw or bolt 381 may pass through the lower housing 24 and the upper housing 23 in order and then be coupled to the bottom of the outer tank 41.
  • the power transmission apparatus 100 may include a tubular driven shaft 132 having a drive shaft 310 inserted therein and an opening through which the driven shaft 132 passes is formed at a center portion of the lower housing 24.
  • a bearing 374 for rotatably supporting the driven shaft 132 may be disposed in the lower housing 24.
  • the bearing 374 may be constructed in substantially the same manner as the bearing 375 described above.
  • the clutch 37 is engaged with the driven shaft 310 and the drive shaft 310 so that the drive shaft 310 and the driven shaft 132 are integrally rotated so that the driven shaft 132 and the drive shaft 310 are coupled to each other (for example, Or the driven shaft 132 is disengaged from (or separated from) the drive shaft 310 so that only the drive shaft 310 is rotated in a state where the driven shaft 132 is stopped (Pumping mode).
  • the power transmission apparatus 100 may include a planetary gear train 200 and a gear housing 110 that receives the planetary gear train 200.
  • the planetary gear train 200 may include a ring gear 210, a first sun gear 220, a second sun gear 230, a carrier 240 and a pinion gear 250.
  • the planetary gear train 200 converts rotational force inputted through the drive shaft 310 into two outputs for rotating the impeller 70 and the pulsator 26.
  • the ring gear 210 can be fixed in the gear housing 110 as an internal gear.
  • the planetary gear train 200 is supplied with power (or rotational force) through the first sun gear 220 connected to the drive shaft 310, and the output through the second sun gear 230 is transmitted to the impeller 70 And the output through the carrier 240 rotates the pulsator 26.
  • the gear housing 110 is rotated by the drive shaft 310 when the clutch 37 is in the internal rotation rotation mode.
  • the gear housing 110 includes a driven shaft 132 and an inner tubular connecting shaft 121.
  • the gear housing 110 is generally a hollow shaft.
  • the upper end of the gear housing 110 constitutes an inner tubular connecting shaft 121 connected to the inner tub 50 by a hub 31 and an impeller connecting shaft 350 in a hollow defined by the inner tubular connecting shaft 121 .
  • the lower end of the gear housing 110 constitutes a driven shaft 132 and the drive shaft 310 is disposed in the hollow defined by the driven shaft 132.
  • the driven shaft 132 can be axially or axially disengaged from the drive shaft 310 by the clutch 37.
  • a receiving portion 122 for receiving the planetary gear train 200 is formed between the upper end portion 121 and the lower end portion 132 of the gear housing 110.
  • the ring gear 210 can be fixed in the receiving portion 122.
  • the gear housing 110 may include an upper gear housing 120 and a lower gear housing 130.
  • the inner race connecting shaft 121 and the receiving portion may be formed by the upper gear housing 120.
  • the upper gear housing 120 and the lower gear housing 130 may be coupled by fastening members 382 such as screws or bolts.
  • the driven shaft 132 may be formed by the lower gear housing 130.
  • the lower gear housing 130 includes a flange portion 131 that extends outward along the radial direction from the upper end of the driven shaft 132 and has a substantially horizontal shape and is coupled to the lower end portion of the receiving portion 122 can do.
  • the ring gear supporter 320 supports the ring gear 210 in the receiving portion 122 of the gear housing 110.
  • the ring gear supporter 320 is coupled to the upper side of the flange portion 131.
  • the ring gear supporter 320 is entirely ring-shaped, and the drive shaft 310 passes through the center of the ring gear supporter 320.
  • At least one engaging projection 131a may protrude from either the upper surface of the flange portion 131 or the bottom surface of the ring gear supporter 320.
  • a plurality of coupling protrusions 131a may be provided along the circumferential direction.
  • a coupling hole 322 into which the coupling projection 131a is inserted is formed in the other of the upper surface of the flange portion 131 and the lower surface of the ring gear supporter 320 at a position corresponding to each coupling projection 131a .
  • At least one engaging projection 321 may protrude from either the upper surface of the ring gear supporter 320 or the lower surface of the ring gear 210.
  • a plurality of coupling protrusions 321 may be provided along the circumferential direction.
  • a coupling groove into which the coupling protrusion 321 is inserted may be formed in the other of the upper surface of the ring gear supporter 320 and the lower surface of the ring gear 210 at a position corresponding to each coupling protrusion 321 have.
  • the carrier 240 may be disposed in the receiving portion 122 of the gear housing 110.
  • a first sun gear 220 and a second sun gear 230 are arranged coaxially with each other.
  • a plurality of pinion gears 250 (1), 250 (2), 250 (3) and 250 (4) arranged along the circumference of the sun gears 220 and 230 are rotatably supported by the carrier 240 .
  • the carrier 240 includes a ring-shaped upper plate portion 241 having a center portion opened, a ring-shaped lower plate portion 242 disposed at a lower side than the upper plate portion 241 and having a central portion opened, an upper plate portion 241, And a shaft coupling plate 243 disposed between the lower plate portion 242 and the lower end of the pulsator coupling shaft 340.
  • the shaft coupling plate 243 may include a plurality of arms 243a extending radially from a central portion to which the pulsator connecting shaft 340 is coupled.
  • the arm 243a may be provided in a corresponding number to the pinion gears 250 (1), 250 (2), 250 (3), 250 (4), and pinion gears (250) may be disposed, respectively.
  • four pinion gears 250 are provided in four regions separated by four arms 243a.
  • Coupling grooves 243r may be formed at the center of the shaft coupling plate 243 to receive the lower ends of the pulsator coupling shafts 340.
  • the coupling groove 243r may be formed on the upper surface of the central portion.
  • the coupling between the pulsator coupling shaft 340 and the coupling groove 243r may be a spline or serration coupling so that a spline or serration may be formed at the lower end of the pulsator coupling shaft 340,
  • a groove engaging with the spline or serration may be formed on the inner circumferential surface of the coupling groove 243r.
  • a fastening member such as a screw or bolt which penetrates the shaft coupling plate 243 from the lower side to the upper side and engages with the lower end of the pulsator connecting shaft 340.
  • the coupling plate 243 may not be provided with the coupling groove 243r.
  • the coupling groove 243r when the coupling groove 243r is formed as in the embodiment, the bottom surface of the shaft coupling plate 243 can protrude further downward than the peripheral portion, corresponding to the coupling groove 243r, A groove may be formed on the upper surface of the impeller coupling shaft coupler 360 (see FIGS. 7 to 8) for connecting the first sun gear 220 to the drive shaft 310.
  • the lower plate 242 and the shaft coupling plate 243 can be connected by a lower support 244.
  • the lower plate portion 242 includes a ring-shaped lower plate ring 242a having a substantially horizontal flat plate shape and opening at its center and a plurality of engaging bosses 242b projecting from the upper surface of the lower plate ring 242a and disposed along the circumferential direction .
  • coupling grooves may be formed at positions corresponding to the plurality of coupling bosses 242b, respectively.
  • the lower support 244 is elongated in the vertical direction, and the upper end may be inserted into the engagement groove and the lower end may be inserted into the engagement boss 242b.
  • the upper plate 241 and the shaft coupling plate 243 can be connected by an upper support 245.
  • the upper plate portion 241 includes a ring-shaped upper plate ring 241a having a center portion of a substantially horizontal flat plate open and a plurality of engaging bosses 241b projecting from the bottom surface of the upper plate ring 241a and arranged along the circumferential direction .
  • Coupling grooves may be formed on the upper surface of the shaft coupling plate 243 at positions corresponding to the plurality of coupling bosses 241b.
  • the upper support 245 is elongated in the vertical direction. The lower end of the upper support 245 may be inserted into the coupling groove, and the upper end of the upper support 245 may be inserted into the coupling boss 241b.
  • the carrier 240 may include a plurality of pinion gear shafts 246 connecting the upper plate portion 241 and the lower plate portion 242.
  • the plurality of pinion gear shafts 246 may be disposed at regular intervals along the circumferential direction, and each pinion gear shaft 246 may pass through an area between the arms 243a.
  • the pinion gear 250 can be fitted to each pinion gear shaft 246.
  • the pinion gear 250 can be supported by the ring gear supporter 320. Fig. That is, the pinion gear 250 can be rotated with its lower end in contact with the upper surface of the ring gear supporter 320. More specifically, the pinion gear 250 includes a cylindrical gear body 251 having gears formed on the outer circumferential surface thereof, and a ring-shaped gear body 251 protruding from the bottom surface of the gear body 251 along the periphery of the opening through which the pinion gear shaft 246 passes And the lower support rib 253 always contacts the upper surface of the ring gear supporter 320 when the pinion gear 250 is rotated.
  • the pinion gear 250 meshes with the sun gears 220 and 230 and is engaged with the ring gear 210 at the same time.
  • the first sun gear 220 is disposed on the lower side of the shaft coupling plate 243 and the second sun gear 230 is disposed on the upper side of the shaft coupling plate 243, Is engaged with the sun gear (220), and the upper portion is engaged with the second sun gear (230).
  • the power transmission apparatus 100 may include an impeller coupling axis coupler 360 connecting (coupling) the first sun gear 220 and the drive shaft 310.
  • the lower end of the impeller coupling shaft coupler 360 is coupled to the drive shaft 310 and the upper end is coupled to the center of the first sun gear 220.
  • the power transmission apparatus 100 may include a drive shaft coupler 330 connecting (coupling) the two-wire gear 230 and the impeller coupling shaft 350.
  • the upper end of the drive shaft coupler 330 is coupled to the impeller coupling shaft 350 and the lower end thereof is coupled to the center of the second sun gear 230.
  • the second sun gear 230 is rotated by the rotation of the pinion gears 250, and the drive shaft coupler 330 is also rotated at this time.
  • the drive shaft coupler 330 may include a tubular coupler body 331 coupled to the impeller coupling shaft 350 and a generally circular flange 332 extending from the outer peripheral surface of the coupler body 331 .
  • the flange 332 is located in the opening formed in the center of the upper plate portion 241 of the carrier 240 and the outer diameter can be larger than the outer diameter of the second sun gear 230.
  • the flange 332 may be supported by the pinion gears 250 so as to protrude further outward than the second sun gear 230.
  • the pinion gear 250 may include a ring-shaped upper support rib 252 protruding from the upper surface of the gear body 251 around the opening through which the pinion gear shaft 246 passes. When the pinion gear 250 is rotated, the upper support rib 252 always contacts the bottom surface of the protruding portion of the flange 332.
  • a pulsator connection shaft 340 passes through the hollow of the coupler body 331 and a bearing 371 for rotatably supporting the pulsator connection shaft 340 may be disposed in the hollow.
  • the bearing 371 is preferably an oilless bearing but is not limited thereto.
  • the outer peripheral surface of the bearing 371 is in contact with the inner peripheral surface of the coupler main body 331 and the inner peripheral surface of the bearing 371 is in contact with the outer peripheral surface of the pulsator connection shaft 340.
  • the impeller connecting shaft 350 is a shaft having a hollow through which the pulsator connecting shaft 340 passes and the lower end is inserted through the opened upper end of the coupler main body 331, .
  • the lower end of the impeller connecting shaft 350 inserted into the coupler main body 331 is positioned in a region at least partially spaced from the outer peripheral surface of the pulsator connecting shaft 340 in correspondence with the thickness t of the bearing 371 do. That is, the hollow formed in the coupler main body 331 can be divided into a first area in which the bearing 371 is received and a second area located above the first area, and in particular, The inner circumferential surface of the main body 331 is spaced apart from the outer circumferential surface of the pulsator connecting shaft 340 and the lower end of the impeller connecting shaft 350 is inserted into the thus separated space.
  • the hollow of the coupler body 331 has a diameter in the second region that is less than or equal to the diameter in the first region.
  • the outer diameter of the upper end of the coupler main body 331 is determined by excluding the thickness of the bearing 371 and by adjusting the diameter of the pulsator connecting shaft 340, the thickness of the impeller connecting shaft 350, The outer diameter of the upper end portion of the coupler main body 331 is set such that the bearing 371 is disposed in the upper end portion between the sheath connecting shaft 340 and the impeller connecting shaft 350 There is an effect that can be reduced.
  • a spline or serration 331s may be formed on the inner circumferential surface of the upper end of the coupler main body 331 and a groove may be formed on the outer circumferential surface of the lower end of the impeller coupling shaft 350 to engage with the spline or serration.
  • the impeller connecting shaft 350 may include a small diameter portion 350a and a large diameter portion 350b extending from the upper end of the small diameter portion 350a and having an outer diameter larger than that of the small diameter portion 350a.
  • the small diameter portion 350a is inserted into the hollow of the inner tubular connecting shaft 121 (that is, the upper end of the gear housing 110), and the large diameter portion 350b is inserted into the hollow of the impeller hub (Not shown).
  • the outer diameter of the large-diameter portion 350b is preferably equal to or smaller than the outer diameter of the upper end of the inner tubular connection shaft 121, but is not limited thereto.
  • the portion of the drive shaft coupler 330 which is fitted to the coupler main body 331 is the lower end portion of the small diameter portion 350a and the small diameter portion 350b is located on the upper side of the coupler main body 331 with at least one bearing 372 , 373).
  • the ring-shaped stopper 341 can be fitted to the impeller connecting shaft 350 and the downward displacement of the bearing 372 is restricted by the stopper 341.
  • a stepped portion contacting the upper surface of the bearing 372 may be formed on the inner circumferential surface of the impeller coupling shaft 350. The upward displacement of the bearing 372 is limited by the stepped portion.
  • a bearing 373 may further be provided on the upper side of the bearing 372.
  • a stepped portion on which the bottom surface of the bearing 373 is seated may be formed on the inner peripheral surface of the inner tubular connection shaft 121.
  • the downward displacement of the bearing 373 is restricted by the stepped portion where the bottom surface of the bearing 373 is seated.
  • an upper stopper 342 which is located on the upper side of the stepped portion where the bottom surface of the bearing 373 is seated and protrudes from the outer circumferential surface of the impeller connecting shaft 350 can be further formed. By the upper stopper 342 The upward displacement of the bearing 373 is restricted.
  • the upper stopper 373 may be formed in a ring shape.
  • the pulsator connecting shaft 340 can protrude outward along the radial direction from the portion located in the large-diameter portion 350b, and the ribs 345 can protrude from the inner circumferential surface of the large-
  • the rib 345 may have a shape corresponding to that of the rib 345, and a groove into which the rib 345 is inserted may be formed.
  • the ribs 345 may be in the form of a ring. Due to the structure in which the ribs 345 are fitted in the grooves, the pulsator connecting shaft 340 and the impeller connecting shaft 350 are prevented from being displaced upward and downward with respect to each other.
  • Figure 17 shows another embodiment of pulsator.
  • the pulsator 500 includes an inner pulsator 510 and an outer pulsator 520 having an outer diameter larger than that of the inner pulsator 510 and disposed below the inner pulsator 510, . ≪ / RTI >
  • the present invention can be applied to rotate the inner pulsator 510 and the outer pulsator 520 at different speeds. That is, the inner pulsator 510 is connected to one of the two connection shafts 340 and 350 rotated by the planetary gear train 200, and the outer pulsator 520 is connected to the other connection shaft 340, Lt; / RTI >

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

Abstract

The laundry handling apparatus according to the present invention comprises: an outer tub in which washing water is filled; an inner tub which accommodates laundry and is rotatably provided inside the outer tub; a pulsator rotatably provided inside the inner tub; a pulsator connection shaft connected to the pulsator; an impeller rotatably disposed under the pulsator inside the inner tub; an impeller connection shaft which is connected to the impeller and has a first hollow, through which the pulsator connection shaft passes; a driving unit for supplying a rotational force; a driving shaft rotated by the driving unit; and a planetary gear train for rotating the pulsator connection shaft and the impeller connection shaft at different speeds by transmitting the rotation of the driving shaft, wherein the planetary gear train comprises: a ring gear; a first sun gear disposed inside the ring gear and rotated by the driving shaft; multiple pinions which are rotated by the first sun gear and revolve about the ring gear; a second sun gear disposed over the first sun gear and rotated by the multiple pinions; and a carrier which is coupled to the pulsator connection shaft, supports the multiple pinions to be rotatable, and rotates the pulsator connection shaft by being rotated as the multiple pinions revolve, the laundry handling apparatus further comprising an impeller connection shaft coupler, the lower end of which is coupled to the center of the second sun gear, and the upper end of which is coupled to the impeller connection shaft, and which rotates the impeller connection shaft while rotating integrally with the second sun gear when the second sun gear is rotated by the multiple pinions, wherein the impeller connection shaft coupler comprises: a coupler body having a second hollow, through which the pulsator connection shaft passes; and a bearing which is interposed between the inner circumferential surface of the coupler body, defining the second hollow, and the outer circumferential surface of the pulsator connection shaft, and which supports the pulsator connection shaft, the coupler body being configured such that the lower end of the impeller connection shaft is inserted into an area spaced apart from the outer circumferential surface of the pulsator connection shaft so as to correspond to the thickness of the bearing, the area being provided over the part where the bearing is accommodated.

Description

세탁물 처리장치Laundry processing device
본 발명은 세탁물 처리장치에 관한 것으로, 보다 상세하게는, 펄세이터의 하측에 임펠러가 구비되어, 모터에 의해 상기 펄세이터와 상기 임펠러가 회전되는 세탁물 처리장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry processing apparatus, and more particularly, to a laundry processing apparatus in which an impeller is provided below a pulsator and the pulsator and the impeller are rotated by a motor.
일반적으로 세탁물 처리장치는, 물과 세제의 화학적 분해 작용과 물과 세탁물 간의 마찰 등 물리적 작용 등을 이용하여, 의복, 침구 등(이하, '세탁물'이라 약칭함)에 묻은 오염물질을 분리해내는 장치를 통칭하는 것이다.Generally, a laundry processing apparatus separates contaminants from clothes, bedding, etc. (hereinafter, abbreviated as "laundry") by using physical action such as chemical decomposition of water and detergent and friction between water and laundry Device.
이러한 세탁물 처리장치는 세탁수가 담기는 외조 내에 구비되어, 세탁물을 수용하는 내조가 수직축을 중심으로 회전되는 탑 로딩(Top Loading) 방식과, 수평축을 중심으로 회전되는 프론트 로딩(Front Loading) 방식으로 구분된다.Such laundry processing apparatuses are classified into a top loading system in which washing water is contained in an outer bath and an inner bath for accommodating laundry is rotated around a vertical axis and a front loading system in which the laundry is rotated around a horizontal axis do.
통상, 탑 로딩 방식의 세탁물 처리장치는, 상기 내조 내에 펄세이터가 구비되는데, 상기 펄세이터의 회전에 의해 세탁물에 충격이 가해짐으로써, 세탁물의 오염이 보다 적극적으로 제거된다.Generally, a top loading type laundry processing apparatus is provided with a pulsator in the inner tank. By impinging on the laundry by the rotation of the pulsator, contamination of the laundry is more positively removed.
종래에는 상기 외조로부터 배출된 물을 압송하는 순환펌프와, 상기 순환펌프에 의해 압송된 물을 안내하여 상기 내조 내로 토출하는 순환유로가 상기 외조의 외측에 구비되었다. 이러한 구조는, 상기 순환유로를 따라 물을 순환시킴으로써, 세제 용해를 촉진하고, 세제가 세탁물에 고르게 베도록 하여 세탁 성능을 향상시키는 장점이 있으나, 상기 순환펌프로 인해 제조비용이 상승되는 문제가 있었다.Conventionally, a circulation pump for feeding water discharged from the outer tank and a circulation channel for discharging the water fed by the circulation pump into the inner tank are provided outside the outer tank. This structure has the advantage of promoting the dissolution of the detergent by circulating water along the circulating flow path and improving the washing performance by evenly washing the detergent in the laundry, but the manufacturing cost is increased due to the circulation pump .
이와 관련하여, 종래 기술1(한국특허공개번호 2013-0049094)은 드럼 내부에 회전 가능하게 구비되는 펄세이터와, 상기 펄세이터의 하측에 구비되어 원심력으로 분출압을 형성하는 원심블레이드부를 포함하는 세탁기를 개시하고 있으나, 종래 기술 1은 상기 펄세이터와 상기 원심블레이드부가 동일한 속도로 회전되는 것으로써 충분한 수류압을 위해서는 상기 원심블레이드부의 회전 속도를 증가시켜야 하나, 이 경우, 상기 펄세이터에 가해지는 부하도 증가되기 때문에, 회전 속도를 증가시키는데 한계가 있었다.In this connection, Conventional Technique 1 (Korean Patent Laid-Open Publication No. 2013-0049094) discloses a washing machine comprising a pulsator rotatably installed in a drum, and a centrifugal blade portion provided below the pulsator to form an ejection pressure by a centrifugal force, However, in the prior art 1, the pulsator and the centrifugal blade portion are rotated at the same speed, so that the rotational speed of the centrifugal blade portion must be increased for sufficient water flow. In this case, however, the load applied to the pulsator There is a limit to increase the rotation speed.
이러한 문제를 해결하기 위해, 상기 원심불레이드부를 회전시키는 제 1 축을 중공축으로 구성하고, 상기 제 1 축 내에 상기 펄세이터를 회전시키는 제 2 축이 삽입되고, 유성기어열을 이용하여 상기 제 1 축과 상기 제 2 축을 서로 다른 속도로 회전시키는 것을 고려해 볼 수 있는데, 이 경우, 이러한 2중 축의 전체 외경이 증가되지 않도록 상기 제 2 축의 회전을 지지하는 베어링을 적절한 위치에 배치할 필요가 있다.In order to solve such a problem, it is preferable that a first shaft for rotating the centrifugal bulldade is a hollow shaft, a second shaft for rotating the pulsator is inserted in the first shaft, It may be considered to rotate the shaft and the second shaft at different speeds. In this case, it is necessary to arrange the bearing supporting the rotation of the second shaft at a proper position so that the total outer diameter of the double shaft is not increased.
본 발명이 해결하고자 하는 과제는, 내조 내에 펄세이터와 임펠러가 구비되고, 각각이 펄세이터 연결축과 임펠러 연결축이 결합되고, 상기 임펠러 연결축에 상기 펄세이터 연결축이 삽입되는 중공이 형성되는 구조로 이루어진 세탁물 처리장치에서, 상기 펄세이터 회전축을 지지하는 베어링을 상기 임펠러 회전축의 외측에 배치함으로써, 상기 임펠러 회전축을 슬림화하는 것이다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a pulsator and an impeller in an inner tank, each having a pulsator connection shaft and an impeller connection shaft, and a hollow through which the pulser connection shaft is inserted into the impeller connection shaft The impeller rotation shaft is slimmed by disposing a bearing for supporting the pulsator rotation shaft outside the impeller rotation shaft.
본 발명의 과제들은 이상에서 언급한 과제들로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.
본 발명의 세탁물 처리장치는, 세탁수가 담기는 외조와, 세탁물을 수용하고, 상기 외조 내에 회전 가능하게 구비되는 내조와, 상기 내조 내에 회전 가능하게 구비되는 펄세이터와, 상기 펄세이터와 연결되는 펄세이터 연결축과, 상기 내조 내에서 상기 펄세이터의 하측에 회전 가능하게 배치되는 임펠러와, 상기 임펠러와 연결되고, 상기 펄세이터 연결축이 통과하는 제 1 중공이 형성된 임펠러 연결축과, 회전력을 제공하는 구동부와, 상기 구동부에 의해 회전되는 구동축과, 상기 구동축의 회전을 전달하여, 상기 펄세이터 연결축과 상기 임펠러 연결축을 서로 다른 속도로 회전시키는 유성기어열을 포함한다.The laundry treatment apparatus of the present invention comprises: an outer tank containing laundry water; an inner tank which accommodates the laundry and is rotatably provided in the outer tank; a pulsator rotatably provided in the inner tank; An impeller rotatably disposed on the lower side of the pulsator in the inner tank, an impeller connecting shaft connected to the impeller and having a first hollow through which the pulsator connecting shaft passes, And a planetary gear train for transmitting the rotation of the drive shaft and rotating the pulsator connection shaft and the impeller connection shaft at different speeds.
상기 유성기어열은 링기어와, 상기 링기어의 내측에 배치되고, 상기 구동축에 의해 회전되는 제 1 선기어와, 상기 제 1 선기어에 의해 회전되며, 상기 링기어를 따라 공전되는 다수개의 피니언기어와, 상기 제 1 선기어의 상측에 배치되고, 상기 다수개의 피니언기어에 의해 회전되는 제 2 선기어와, 상기 펄세이터 연결축과 결합되고, 상기 다수개의 피니언기어를 회전 가능하게 지지하며, 상기 다수개의 피니언기어가 공전됨에 따라 회전되어 상기 펄세이터 연결축을 회전시키는 캐리어를 포함한다.Wherein the planetary gear train comprises a ring gear, a first sun gear disposed inside the ring gear and rotated by the drive shaft, a plurality of pinion gears rotated by the first sun gear and revolving along the ring gear, A second sun gear disposed on the upper side of the first sun gear and rotated by the plurality of pinion gears, a second sun gear coupled to the pulsator connecting shaft, rotatably supporting the plurality of pinion gears, And a carrier which is rotated as the gear is idled to rotate the pulsator connecting shaft.
상기 세탁물 처리장치는, 하단부가 상기 제 2 선기어의 중심에 결합되고, 상단부는 상기 임펠러 연결축과 결합되고, 상기 제 2 선기어가 상기 다수개의 피니언기어에 의해 회전될 시, 상기 제 2 선기어와 일체로 회전되며 상기 임펠러 연결축을 회전시키는 임펠러 연결축 커플러를 더 포함한다.The laundry processing apparatus is characterized in that the lower end portion is coupled to the center of the second sun gear, the upper end portion is coupled to the impeller coupling shaft, and when the second sun gear is rotated by the plurality of pinion gears, And an impeller connecting shaft coupler for rotating the impeller connecting shaft.
상기 임펠러 연결축 커플러는, 상기 펄세이터 연결축이 통과되는 제 2 중공이 형성된 커플러 본체와, 상기 제 2 중공을 규정하는 상기 커플러 본체의 내주면과 상기 펄세이터 연결축의 외주면 사이에 개재되어, 상기 펄세이터 연결축을 지지하는 베어링을 포함한다.The impeller coupling shaft coupler may include a coupler body having a second hollow through which the pulsator connecting shaft passes, and an outer circumferential surface of the pulsator connecting shaft, the inner circumferential surface of the coupler body defining the second hollow, And a bearing for supporting the data connection shaft.
상기 커플러 본체는 상기 베어링이 수용되는 부분의 상측에 제공되는, 상기 베어링의 두께에 대응하여 상기 펄세이터 연결축의 외주면과 이격된 영역 내로, 상기 임펠러 연결축의 하단부가 삽입된다.The lower end of the impeller coupling shaft is inserted into the coupler main body in a region spaced from the outer circumferential surface of the pulsator connecting shaft corresponding to the thickness of the bearing, which is provided on the upper portion of the bearing receiving portion.
본 발명의 세탁물 처리장치는, 중공이 형성된 임펠러 연결축 내에 펄세이터 연결축이 삽입되는 구조에서, 상기 펄세이터 연결축을 지지하는 베어링을 상기 임펠러 연결축의 외측에 배치함으로써, 상기 임펠러 연결축의 내주면과 상기 펄세이터 연결축의 외주면 사이의 간격을 줄일 수 있음과 아울러, 상기 임펠러 연결축의 외경이 필요 이상으로 증가되는 것을 방지할 수 있는 효과가 있다. The laundry processing apparatus of the present invention is characterized in that, in the structure in which the pulsator connection shaft is inserted into the hollow shaft coupling impeller, the bearing supporting the pulsator coupling shaft is disposed outside the impeller coupling shaft, The distance between the outer circumferential surfaces of the pulsator connecting shafts can be reduced and the outer diameter of the impeller connecting shaft can be prevented from being increased more than necessary.
특히, 유성기어열의 선기어와 상기 임펠러 연결축을 연결하는 커플러를 제공하고 상기 커플러 내에 상기 펄세이터 연결축을 지지하는 베어링을 배치하되, 상기 베어링을 상기 임펠러 연결축 보다 더 하측에 위치시킴으로써, 상기 임펠러 연결축과 상기 펄세이터 연결축 사이에 상기 베어링을 배치하지 않고도 상기 베어링에 의해 상기 펄세이터 연결축이 지지될 수 있는 효과가 있다.In particular, the present invention provides a coupler for connecting a sun gear of a planetary gear train to the impeller coupling shaft and a bearing for supporting the pulsator coupling shaft in the coupler, wherein the bearing is located lower than the impeller coupling shaft, The pulsator connection shaft can be supported by the bearing without disposing the bearing between the pulsator connection shaft and the pulsator connection shaft.
도 1은 본 발명의 일 실시예에 따른 세탁물 처리장치의 측단면도이다.1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
도 2는 도 1에 도시된 세탁물 처리장치의 주요부들을 도시한 사시도이다.FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1. FIG.
도 3은 도 2에 도시된 조립체의 분해 사시도이다.Figure 3 is an exploded perspective view of the assembly shown in Figure 2;
도 4는 도 2의 II-II를 따른 단면도의 일부분을 확대한 것이다.4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig.
도 5는 펄세이터가 베이스로부터 분리된 상태를 도시한 것이다.5 shows a state in which the pulsator is separated from the base.
도 6는 본 발명의 일 실시예에 따른 세탁물 처리장치의 주요부간의 제어관계를 도시한 블록도이다.FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention.
도 7은 도 1의 일부를 확대한 것이다.Fig. 7 is an enlarged view of a part of Fig.
도 8은 도 7에 점선으로 표시된 부분을 확대한 것이다.FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG.
도 9a는 도 8의 A부분을 확대한 것, 도 9b는 도 8의 B부분을 확대한 것이다.FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG.
도 10은 도 7에 도시된 유성기어열(Epicyclic Gear Trains)을 보이는 사시도이다.FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7. FIG.
도 11 내지 도 13은 각각, 도 10에 도시된 조립체의 측면도, 평면도, 저면도이다.11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig.
도 14는 캐리어를 도시한 사시도이다.14 is a perspective view showing the carrier.
도 15는 내조 연결축에 대해 펄세이터가 상대회전 할 시의 유성기어열의 동작을모식적으로 도시한 것이다.15 schematically shows the operation of the planetary gear train when the pulsator rotates relative to the inner link connecting shaft.
도 16은 내조 연결축과 펄세이터가 같은 속도로 회전할 시의 유성기어열의 동작을 모식적으로 도시한 것이다.16 schematically shows the operation of the planetary gear train when the internal gear connection shaft and pulsator rotate at the same speed.
도 17은 펄세이터의 다른 실시예를 도시한 것이다.Figure 17 shows another embodiment of pulsator.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다.BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
이하, 본 발명의 실시예들에 의하여 세탁물 처리장치를 설명하기 위한 도면들을 참고하여 본 발명에 대해 설명하도록 한다.Hereinafter, the present invention will be described with reference to the drawings for explaining a laundry processing apparatus according to embodiments of the present invention.
도 1은 본 발명의 일 실시예에 따른 세탁물 처리장치의 측단면도이다. 도 2는 도 1에 도시된 세탁물 처리장치의 주요부들을 도시한 사시도이다. 도 3은 도 2에 도시된 조립체의 분해 사시도이다. 도 4는 도 2의 II-II를 따른 단면도의 일부분을 확대한 것이다. 도 5는 펄세이터가 베이스로부터 분리된 상태를 도시한 것이다. 도 6는 본 발명의 일 실시예에 따른 세탁물 처리장치의 주요부간의 제어관계를 도시한 블록도이다. 도 7은 도 1의 일부를 확대한 것이다. 도 8은 도 7에 점선으로 표시된 부분을 확대한 것이다. 도 9a는 도 8의 A부분을 확대한 것, 도 9b는 도 8의 B부분을 확대한 것이다. 도 10은 도 7에 도시된 유성기어열(Epicyclic Gear Trains)을 보이는 사시도이다. 도 11 내지 도 13은 각각, 도 10에 도시된 조립체의 측면도, 평면도, 저면도이다. 도 14는 캐리어를 도시한 사시도이다.1 is a side cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing major parts of the laundry treatment apparatus shown in FIG. 1. FIG. Figure 3 is an exploded perspective view of the assembly shown in Figure 2; 4 is an enlarged view of a portion of a cross-sectional view along II-II in Fig. 5 shows a state in which the pulsator is separated from the base. FIG. 6 is a block diagram showing the control relationship between the main parts of the laundry processing apparatus according to the embodiment of the present invention. Fig. 7 is an enlarged view of a part of Fig. FIG. 8 is an enlarged view of a portion indicated by a dotted line in FIG. FIG. 9A is an enlarged view of portion A of FIG. 8, and FIG. 9B is an enlarged view of portion B of FIG. FIG. 10 is a perspective view showing the epicyclic gear trains shown in FIG. 7. FIG. 11 to 13 are respectively a side view, a plan view and a bottom view of the assembly shown in Fig. 14 is a perspective view showing the carrier.
도 1 내지 도 6을 참조하면, 본 발명의 일 실시예에 따른 세탁물 처리장치는 외관을 형성하고, 내측으로 외조(40)가 수용되는 공간을 형성하는 케이싱(1, 2, 3)을 포함할 수 있다.1 to 6, the laundry processing apparatus according to an embodiment of the present invention includes a casing 1, 2, 3 forming an outer appearance and a space for accommodating the outer tank 40 inside .
케이싱(1, 2, 3)은 케이싱 베이스(2)와, 캐비닛(1)과, 탑커버(3)를 포함할 수 있다. 케이싱 베이스(2)는 대략 사각형의 수평한 형태이고, 캐비닛(1)은 전면, 좌측면, 우측면 및 후면을 갖고, 상면과 하면은 개방된 박스형태로써, 케이싱 베이스(2)에 의해 지지된다. 탑커버(3)는, 캐비닛(1)의 개방된 상면에 결합되고, 대략 중앙부에 세탁물이 투입되는 투입구가 형성된다. 탑커버(3)에는 상기 투입구를 개폐하는 도어(미도시)가 회전 가능하게 결합될 수 있다.The casings 1, 2 and 3 may include a casing base 2, a cabinet 1, and a top cover 3. The casing base 2 has a substantially rectangular horizontal shape. The cabinet 1 has a front surface, a left surface, a right surface and a rear surface, and the upper surface and the lower surface are supported by the casing base 2 in an open box form. The top cover 3 is coupled to an open upper surface of the cabinet 1, and a charging port through which laundry is charged is formed at a substantially central portion. A door (not shown) for opening and closing the inlet may be rotatably coupled to the top cover 3.
컨트롤패널(4)은 탑커버(3)에 구비될 수 있다. 컨트롤패널(4)은 사용자로부터 세탁물 처리장치의 작동 제어를 위한 각종 제어명령을 입력 받는 입력부(예를 들어, 버튼, 다이얼, 터치패드 등)와, 세탁물 처리장치의 작동 상태를 시각적으로 표시하는 표시부(예를 들어, LCD, LED 디스플레이 등)를 포함할 수 있다.The control panel 4 may be provided on the top cover 3. The control panel 4 includes an input unit (for example, a button, a dial, a touch pad, etc.) for receiving various control commands for controlling the operation of the laundry processing apparatus from the user, a display unit for visually displaying the operating state of the laundry processing apparatus (E. G., LCD, LED display, etc.).
외조(40)는 세탁수를 담기 위한 것으로, 서스펜션(5)에 의해 케이싱(1, 2, 3) 내에 매달릴 수 있다. 서스펜션(5)은, 상단부는 탑커버(3)와 피봇 가능하게 결합되고, 하단부는 외조(40)와 결합된다. 서스펜션(5)의 하단부에는 외조(40)를 탄지하는 스프링이 구비될 수 있다. 서스펜션(5)은 캐비닛(1)의 네 군데 모서리에 각각 구비될 수 있다.The outer tub 40 is for containing wash water and can be suspended within the casings 1, 2 and 3 by means of suspensions 5. The upper end of the suspension 5 is pivotally coupled to the top cover 3 and the lower end of the suspension 5 is coupled to the outer tub 40. A spring for resiliently supporting the outer tank 40 may be provided at the lower end of the suspension 5. [ The suspensions 5 may be provided at four corners of the cabinet 1, respectively.
세탁물 처리장치는 수도 꼭지 등의 외부 수원으로부터 공급된 물을 안내하는 적어도 하나의 급수관(8)을 포함할 수 있다. 적어도 하나의 급수관(8)는 외부 수원으로부터 냉수를 공급받는 냉수 급수관과, 온수를 공급받는 온수 급수관을 포함할 수 있다. 각각의 급수관을 통해 공급된 물은 급수밸브 어셈블리(7)로 유입된다. 급수밸브 어셈블리(7)는 적어도 하나의 급수밸브를 포함할 수 있다. 각각의 급수밸브는 세제공급기구(9)와 유로 연결되어 있다. 제어부(36)의 제어 하에 상기 적어도 하나의 급수밸브가 개방되면, 개방된 급수밸브를 통해 세제공급기구(9)로 급수가 이루어진다.The laundry treatment apparatus may include at least one water supply pipe (8) for guiding water supplied from an external water source such as a faucet. The at least one water supply pipe 8 may include a cold water supply pipe supplied with cold water from an external water source and a hot water supply pipe supplied with hot water. The water supplied through each of the water supply pipes flows into the water supply valve assembly 7. The water supply valve assembly 7 may include at least one water supply valve. Each of the water supply valves is connected to the detergent supply mechanism (9). When the at least one water supply valve is opened under the control of the control unit 36, water is supplied to the detergent supply mechanism 9 through the opened water supply valve.
세제공급기구(9)에는 세탁용 세제, 섬유 유연제, 표백제 등의 첨가제가 각각 담기는 구획된 공간을 제공하고, 상기 적어도 하나의 급수관(8)을 통해 해당 공간으로 공급된 물과 함께 첨가제가 배출된다. 이렇게 배출된 첨가제가 용해된 물은 외조(40) 및/또는 내조(50) 내로 급수된다.The detergent supply mechanism 9 is provided with a divided space containing additive such as laundry detergent, fabric softener and bleach, and the additive is discharged together with the water supplied to the space through the at least one water supply pipe 8 do. The water in which the discharged additive is dissolved is supplied into the outer tank 40 and / or the inner tank 50.
한편, 제어부(36)는, 급수밸브뿐만 아니라, 세탁물 처리장치를 구성하는 각종 전장 부품을 제어하는 것으로, 이러한 제어를 위한 CPU와, 제어를 위한 각종 데이터가 담기는 메모리를 포함할 수 있다. 이하, 별도의 언급이 없는 한, 세탁물 처리장치에 구비된 각 구성들(예를 들어, 구동부(6), 클러치(37) 등)에 대한 제어는 제어부(36)에 의해 이루어지는 것으로 이해하기로 한다On the other hand, the control unit 36 controls not only the water supply valve but also various electrical components constituting the laundry processing apparatus, and may include a CPU for such control and a memory for storing various data for control. Hereinafter, it is understood that the control unit 36 controls the respective components (for example, the driving unit 6, the clutch 37, etc.) provided in the laundry processing apparatus unless otherwise specified
외조(40)로부터 물을 배출시키는 배수 밸로우즈(21)와, 배수 밸로우즈(21)를 단속하는 배수밸브(10)가 구비될 수 있다. 배수 밸로우즈(21)는 펌프(29)와 연결되며, 배수밸브(10)가 개방될 시 배수 밸로우즈(21)를 통해 펌프(29)로 물이 공급될 수 있다. 이렇게 펌프(29)로 유입된 물은, 펌프(29) 작동 시 배수 호스(11)를 통해 세탁물 처리장치의 외부로 배출된다.A drainage bellows 21 for draining water from the outer tank 40 and a drain valve 10 for interrupting the drainage bellows 21 can be provided. The drainage bellows 21 is connected to the pump 29 and water can be supplied to the pump 29 through the drainage bellows 21 when the drainage valve 10 is opened. The water thus introduced into the pump 29 is discharged to the outside of the laundry processing apparatus through the drainage hose 11 when the pump 29 is operated.
외조(40)는, 바닥을 이루는 외조 바닥부(41)와, 외조 바닥부(41)로 상측으로 연장된 원통형의 외조 측면부(42)를 포함할 수 있다. 외조(40)는 합성수지를 사출하여 형성된 것일 수 있고, 이 경우, 외조 바닥부(41)와 외조 측면부(42)가 일체로 구성된다. 외조 바닥부(41)의 대략 중앙에는 후술하는 연결축들(340, 350, 121, 도 7 내지 도 8 참조.)이 통과하는 관통구가 형성될 수 있다. 외조(40)의 개방된 상면에는 외조 커버(28)가 구비될 수 있다. 외조 커버(28)는 세탁물의 출입을 위해 중앙부가 개구된 링형태로 이루어질 수 있다.The outer tank 40 may include a bottom tread 41 forming the bottom and a cylindrical outer tank side portion 42 extending upward from the bottom tread 41. The outer tub 40 may be formed by injecting synthetic resin. In this case, the outer tub bottom 41 and the outer tub side 42 are integrally formed. Through-holes through which the connection shafts 340, 350 and 121 (see Figs. 7 to 8) described later pass are formed at the substantially center of the outer tread bottom 41. The outer cover (28) may be provided on the open upper surface of the outer tank (40). The outer cover 28 may be formed in the form of a ring having a central opening for the entry and exit of laundry.
외조(40) 내에는 세탁물을 수용하며, 수직축(vertical axis)을 중심으로 회전되는 내조(50)가 배치될 수 있다. 내조(50)는 중앙부가 개구된 링 형태의 내조 베이스(51)와, 하단부가 내조 베이스(51)와 결합되는 원통형의 드럼(52)을 포함할 수 있다. 드럼(52)에는 다수의 통공이 형성될 수 있으며, 상기 통공을 통해 내조(50)와 외조(40) 간에 물이 교류될 수 있다. 내조(50)의 재질은 금속이 적합하고, 바람직하게는 바람직하게는 스테인리스 스틸(stainless steel)이나, 이에 한정되는 것은 아니다.In the outer tub 40, an inner tub 50, which receives the laundry and is rotated about a vertical axis, may be disposed. The inner tub 50 may include a ring-shaped inner tub base 51 having a central opening and a cylindrical drum 52 having a lower end coupled to the inner tub base 51. A plurality of through holes may be formed in the drum 52, and water may be exchanged between the inner tub 50 and the outer tub 40 through the through holes. The material of the inner tank 50 is preferably a metal, and preferably stainless steel, but is not limited thereto.
드럼(52)의 상단부에는, 내조(50)의 회전 시 유발되는 편심을 보정하기 위한 밸런서(22)가 구비될 수 있다. 밸런서(22)는 링형의 공간 내에 유체 또는 질량체가 충진된 것으로, 내조(50)가 한쪽으로 치우치면 상기 유체 또는 질량체가 그 반대쪽으로 이동되어 편심(또는, 언밸런스(unbalance))이 보정된다.A balancer 22 for correcting the eccentricity caused when the inner tank 50 rotates may be provided at the upper end of the drum 52. The balancer 22 is filled with a fluid or a mass in a ring-shaped space. When the inner tank 50 is biased to one side, the fluid or mass is moved to the opposite side to correct eccentricity (or unbalance).
내조 베이스(51)의 저면에는 허브(31)가 결합된다. 내조 베이스(51)는, 상면이 드럼(52)과 결합되는 상단부로부터 하방으로 오목한 형태를 이루고, 이렇게 이루어진 오목한 공간 내에 임펠러(70)가 배치된다. 또한, 펄세이터(26)는 임펠러(70)의 상측에 배치된다.A hub 31 is coupled to the bottom surface of the inner tub base 51. The inner tub base 51 is concave downward from the upper end where the upper surface is engaged with the drum 52, and the impeller 70 is disposed in the concave space. The pulsator 26 is disposed above the impeller 70.
허브(31)는 내조 베이스(51)와 외조 바닥부(41) 사이에 배치되고, 대략 원형이며, 중앙부에 후술하는 내조 연결축(121)이 통과하는 축 통과구(31a)가 형성된다. 허브(31)에는 외조(40)와 내조(50) 간에 물이 유동될 수 있도록, 축 통과구(31a)의 둘레를 따라 다수개의 통공(31h)이 형성될 수 있다.The hub 31 is disposed between the inner tub base 51 and the outer tub bottom 41 and has a substantially circular shape and an axial passage hole 31a through which the inner tubular connecting shaft 121 described later passes. A plurality of through holes 31h may be formed in the hub 31 along the circumference of the shaft passage 31a so that water may flow between the outer tub 40 and the inner tub 50. [
임펠러(70)는 임펠러 연결축(350, 도 7 내지 도 8 참조.)에 의해 회전될 수 있다. 보다 상세하게, 도 3을 참조하면, 임펠러(70)는 중앙부에 임펠러 연결축(350)과 결합되는 임펠러 허브(72)가 형성된 대략 원형의 회전판(71)과, 회전판(71)의 저면으로부터 돌출되어, 회전판(71)이 회전될 시, 세탁수를 방사상(또는, 반경방향을 따라 외측)으로 압송하는 적어도 하나의 블레이드(73)를 포함할 수 있다.The impeller 70 can be rotated by the impeller connecting shaft 350 (see Figs. 7 to 8). 3, the impeller 70 includes a substantially circular swash plate 71 formed at the center thereof with an impeller hub 72 coupled to the impeller coupling shaft 350, And at least one blade 73 that press-feeds the washing water radially (or radially outward) when the rotating plate 71 is rotated.
도 5를 참조하면, 펄세이터(26)는, 중앙부에 펄세이터 연결축(340)과 결합되는 펄세이터 허브(26b)가 형성된 대략 원형의 빨래판(26a)과, 각각이 빨래판(26a)으로부터 상측으로 돌출되고, 펄세이터 허브(26b)를 중심으로 방사상으로 배치되는 다수개의 수류형성리브(26c)를 포함할 수 있다.5, the pulsator 26 includes a substantially circular washing plate 26a formed with a pulsator hub 26b coupled to a pulsator connecting shaft 340 at a central portion thereof, And a plurality of water flow forming ribs 26c radially disposed about the pulsator hub 26b.
빨래판(26a)은 내조 베이스(51)의 오목한 부분 내에 배치될 수 있고, 바람직하게는, 위에서 내려다 보았을 시, 임펠러(70)가 완전히 가려지도록, 임펠러(70) 보다 크게 형성되는 것이 바람직하다. 빨래판(26a)에는, 빨래판(26a)의 상/하측 공간을 서로 연통하는 다수의 통공(26h, 도 2 참조.)이 형성될 수 있다.The washing plate 26a may be disposed in the concave portion of the inner tub base 51 and is preferably formed larger than the impeller 70 so that the impeller 70 is completely obscured when viewed from above. A plurality of through holes 26h (see FIG. 2) communicating upper and lower spaces of the washing plate 26a can be formed on the washing plate 26a.
구동부(6)는 펄세이터(26), 임펠러(70) 및/또는 내조(50)를 회전시키기 위한 구동력을 제공하는 것이다. 구동부(6)는 베어링 하우징(25)에 의해 외조(40)와 결합될 수 있다.The driving unit 6 is to provide a driving force for rotating the pulsator 26, the impeller 70 and / or the inner tank 50. The driving unit 6 can be coupled with the outer tub 40 by the bearing housing 25. [
구동부(6)는 구동축(310, 도 7 내지 도 8 참조.)을 회전시키는 모터를 포함할 수 있다. 상기 모터는 속도 제어가 가능한 것으로써, BLDC 모터(Brushless Direct Current Motor)가 적당하나, 반드시 이에 한정되어야 하는 것은 아니다.The driving unit 6 may include a motor for rotating the driving shaft 310 (see Figs. 7 to 8). Since the motor is capable of speed control, a brushless direct current motor (BLDC motor) is suitable, but not necessarily limited thereto.
상기 모터는 아우터 로터 타입으로써, 유도코일이 권취된 스테이터(6a)와, 내주면에 영구자석(6b)이 부착되고, 중앙부는 상기 모터의 회전축과 결합된 로터(6c)를 포함할 수 있다.The motor is an outer rotor type and may include a stator 6a wound with an induction coil, a permanent magnet 6b attached to an inner circumferential surface thereof, and a rotor 6c coupled to the rotation axis of the motor.
도 1 내지 도 8을 참조하면, 동력전달장치(power train, 100)는 구동부(6)의 회전력을 전달하여, 펄세이터 연결축(340), 임펠러 연결축(350) 및/또는 내조 연결축(121)을 회전시키는 것이다. 동력전달장치(100)에 의해 펄세이터 연결축(340)과 임펠러 연결축(350)은 함께 회전되나, 회전속도는 서로 상이할 수 있으며, 이를 위해, 동력전달장치(100)에는 구동축(310)을 통해 입력된 회전속도를, 구동축(310)과 다른 회전속도로 출력하는 유성기어열(200)을 포함할 수 있다. 동력전달장치(100)에 대해서는 보다 상세하게 후술하기로 한다.1 to 8, the power train 100 transmits the rotational force of the driving unit 6 to rotate the pulsator connecting shaft 340, the impeller connecting shaft 350, and / or the inner tubular connecting shaft 121). The pulsator connecting shaft 340 and the impeller connecting shaft 350 are rotated together by the power transmitting apparatus 100 but the rotational speeds may be different from each other. To this end, the power transmitting apparatus 100 is provided with the driving shaft 310, And a planetary gear train 200 for outputting the rotational speed input through the output shaft 310 at a rotation speed different from that of the drive shaft 310. The power transmission apparatus 100 will be described later in more detail.
클러치(37)는, 구동부(6)로부터 내조 연결축(121)으로 전달되는 동력을 단속하는 것이다. 이러한 클러치(37)는 세탁물 처리장치의 기술분야에서 널리 사용되고 있는 것인 바, 구체적인 설명을 생략한다. (예를 들어, 한국특허공개번호 10-2006-0032747, 한국특허공개번호 10-2008-0092023 등)The clutch 37 interrupts the power transmitted from the drive unit 6 to the inner tubular connection shaft 121. Since this clutch 37 is widely used in the technical field of the laundry processing apparatus, detailed description thereof will be omitted. (For example, Korean Patent Publication No. 10-2006-0032747, Korean Patent Publication No. 10-2008-0092023, etc.)
클러치(37)는 펌핑모드 또는 내조회전모드로 선택적으로 동작할 수 있다. 클러치(37)가 펌핑모드일 시, 내조 연결축(121)은 정지(또는, 미회전)된 상태에서, 유성기어열(200)에 의해 펄세이터 연결축(340)과 임펠러 연결축(350)이 정해진 속도비(W3:W1, W1>W3)로 회전된다. (도 15 참조.)The clutch 37 can be selectively operated in a pumping mode or an anti-rotation mode. The pulsator connecting shaft 340 and the impeller connecting shaft 350 are connected to each other by the planetary gear train 200 when the clutch 37 is in the pumping mode and the inner connecting shaft 121 is stopped (or unrotated) Is rotated at a predetermined speed ratio (W3: W1, W1> W3). (See Fig. 15).
반대로, 클러치(37)가 내조회전모드일시에는, 펄세이터 연결축(340), 임펠러 연결축(350) 및 내조 연결축(121) 모두가 같은 속도(W1)로 회전된다. (도 16 참조.) On the other hand, both of the pulsator connecting shaft 340, the impeller connecting shaft 350, and the inner tubular connecting shaft 121 are rotated at the same speed W1 at the time of the clutch 37 in the internal rotation mode. (See Fig. 16).
도 3 내지 도 4를 참조하면, 임펠러(70)의 회전에 의해 형성된 원심 수류를 상측으로 안내하여, 다시 내조(50) 내로 토출시키는 순환분사기구(60)가 구비될 수 있다. 순환분사기구(60)는, 임펠러(70)의 회전에 의해 형성된 수류가 유입되는 유입구(61h)가 형성된 연결덕트(61)와, 드럼(52)의 내주면과의 사이에, 연결덕트(61)와 연통되는 상승 안내 유로(62a)를 형성하는 안내덕트(62)를 포함할 수 있다. 상승 안내 유로(62a)와 드럼(52)의 내주면 사이의 공간(62c)을 따라 수류가 안내된다.3 to 4, a circulation injection mechanism 60 for guiding the centrifugal water flow formed by the rotation of the impeller 70 upward and discharging it into the inner tank 50 may be provided. The circulation injection mechanism 60 is provided with a connecting duct 61 between the connecting duct 61 formed with the inlet port 61h through which the water flow formed by the rotation of the impeller 70 is formed and the inner peripheral surface of the drum 52, And a guide duct 62 forming a rising guide passage 62a communicating with the guide duct 62a. The water flow is guided along the space 62c between the rising guide passage 62a and the inner peripheral surface of the drum 52. [
안내덕트(62)는 상승 안내 유로(62a)를 통해 공급된 물을 내조(50) 내로 토출하기 위한 토출구(62h)가 형성된 토출부(62b)를 포함할 수 있다. 토출부(62b)에는 수류 중에 부유하는 린트(lint)등의 이물질을 채집하기 위한 필터(미도시)가 구비될 수 있다.The guide duct 62 may include a discharge portion 62b having a discharge port 62h for discharging the water supplied through the rising guide passage 62a into the inner tank 50. [ The discharge portion 62b may be provided with a filter (not shown) for collecting foreign matter such as a lint floating in the water stream.
내조 베이스(51)는 임펠러(70)가 배치되는 영역을 한정하는 링형의 하측 림부(51c)와, 펄세이터(26)가 배치되는 영역을 한정하는 상측 림부(51b)를 포함할 수 있다. 상측 림부(51b)는 하단부가 링형의 면(51d)에 의해 하측 림부(51c)의 상단부와 연결되며, 면(51d)의 폭과 대응하는 거리만큼 하측 림부(51c) 보다 외측에 배치된다.The inner tub base 51 may include a ring-shaped lower rim portion 51c defining an area in which the impeller 70 is disposed and an upper rim portion 51b defining an area in which the pulsator 26 is disposed. The lower end of the upper rim portion 51b is connected to the upper end of the lower rim portion 51c by the ring-shaped surface 51d and is disposed outside the lower rim portion 51c by a distance corresponding to the width of the surface 51d.
하측 림부(51c)에는, 임펠러(70)의 회전시, 내조(50) 로부터 물이 배출되는 순환수 배출구(51h1)가 형성될 수 있다. 연결덕트(61)는 내조(50)의 외측에 배치되고, 유입구(61h)가 형성된 일단이 순환수 배출구(51h1)와 연결된다.The lower rim portion 51c may be formed with a circulation water outlet 51h1 through which water is discharged from the inner tank 50 when the impeller 70 rotates. The connecting duct 61 is disposed outside the inner tank 50 and has one end formed with the inlet 61h connected to the circulating water outlet 51h1.
내조 베이스(51)는, 상측 림부(51b)의 상단으로부터, 내조 베이스(51)의 외주 측으로 연장되는 링형의 덕트 결합부(51a, 도 3 참조.)을 더 포함할 수 있다. 덕트 결합부(51a)에는 덕트 연결구(51h2)가 형성될 수 있다. 안내덕트(62)는 연결덕트(61)와 별개의 부품으로 이루어져, 덕트 연결구(51h2)를 통과하여 연결덕트(61)와 연결될 수 있다. 덕트 결합부(51a)의 내주면에는, 상방향으로 돌출된 돌출부(51e)가 원주방향을 따라 다수개가 형성될 수 있다.The inner tub base 51 may further include a ring-shaped duct coupling portion 51a (see FIG. 3) extending from the upper end of the upper rim portion 51b to the outer peripheral side of the inner tub base 51. A duct connecting hole 51h2 may be formed in the duct connecting portion 51a. The guide duct 62 may be a separate component from the connecting duct 61 and may be connected to the connecting duct 61 through the duct connecting hole 51h2. On the inner circumferential surface of the duct connecting portion 51a, a plurality of upward projecting portions 51e may be formed along the circumferential direction.
클러치(37)에 의해 종동축(132)이 구동축(310)과 커플링(coupling, 또는 축이음)되면, 종동축(132)과 구동축(310)이 함께 회전되며, 반대로, 클러치(37)가 전환 동작되어, 종동축(132)이 구동축(310)으로부터 분리되면, 종동축(132)은 정지된 상태에서 구동축(310)이 회전된다.When the driven shaft 132 is coupled to the drive shaft 310 by the clutch 37, the driven shaft 132 and the drive shaft 310 are rotated together. Conversely, when the clutch 37 is rotated When the driven shaft 132 is disengaged from the drive shaft 310, the drive shaft 310 is rotated while the driven shaft 132 is stopped.
보다 상세하게, 동력전달장치(100)는, 펌핑모드시, 구동부(6)의 동력을 펄세이터(26)와 임펠러(70)로 전달하되, 펄세이터(26)와 임펠러(70)를 서로 다른 속도로 회전시키는 유성기어열(200)을 포함한다. 바람직하게는, 펌핑모드시, 임펠러(70)는 펄세이터(26) 보다 빠르게 회전된다.More specifically, in the pumping mode, the power transmitting apparatus 100 transmits the power of the driving unit 6 to the pulsator 26 and the impeller 70, and the pulsator 26 and the impeller 70 And a planetary gear train 200 for rotating the planetary gear train at a speed. Preferably, in the pumping mode, the impeller 70 is rotated faster than the pulsator 26.
펌핑모드에서는, 내조 연결축(121)과 결합된 종동축(132, 도 7 내지 도 8 참조)이, 클러치(37)에 의해 구동축(310)으로부터 분리된 상태에서, 구동부(6)가 회전되며, 따라서, 내조(50)는 정지된 상태에서 유성기어열(200)에 의해 펄세이터(26)와 임펠러(70)가 서로 다른 속도로 회전된다. 다만, 이에 한하지 않고, 별도의 유성기어열을 더 추가하여 구동축(310)이 회전될 시, 종동축(132)을 구동축(310)과 다른 속도로 함께 회전시키는 것도 가능하다. 즉, 이 경우, 회전되는 구동축(310)에 대해서, 상기 별도의 유성기어열에 의해 종동축(132)이 상대 회전되고, 임펠러 연결축(350)은 유성기어열(200)에 의해, 구동축(310)에 대해 상대 회전된다.7 to 8) engaged with the inner tubular connecting shaft 121 are separated from the driving shaft 310 by the clutch 37, the driving unit 6 is rotated The pulsator 26 and the impeller 70 are rotated at different speeds by the planetary gear train 200 in the state where the inner tank 50 is stopped. However, it is also possible to add another planetary gear train to rotate the driven shaft 132 at a different speed from the drive shaft 310 when the drive shaft 310 is rotated. That is, in this case, the driven shaft 132 is relatively rotated by the separate planetary gear train with respect to the driven drive shaft 310, and the impeller connecting shaft 350 is rotated by the planetary gear train 200 via the drive shaft 310 ).
도 7 내지 도 8을 참조하면, 베어링 하우징(25)은 외조 바닥부(41)와 결합되는 어퍼 하우징(23)과, 구동부(6)가 결합되는 로어 하우징(24)을 포함할 수 있다. 어퍼 하우징(23)은, 외조 바닥부(41)의 중앙에 형성된 관통구로 삽입되는 원통형의 결합관부(23a)와, 결합관부(23a)의 외주면으로부터 외측으로 확장되어 외조 바닥부(41)의 저면에 고정되는 결합판부(23b)를 포함할 수 있다.7 to 8, the bearing housing 25 may include an upper housing 23 coupled with the bottom of the outer tank 41 and a lower housing 24 to which the driving unit 6 is coupled. The upper housing 23 has a cylindrical coupling tube portion 23a inserted into a through hole formed at the center of the outer tub bottom portion 41 and a lower tubular portion 23b extending outwardly from the outer peripheral surface of the coupling tube portion 23a, And an engaging plate portion 23b fixed to the engaging portion 23b.
내조 연결축(121)이 결합관부(23a)를 통과하며, 결합관부(23a)의 내주면과 내조 연결축(121)의 외주면 사이에는 베어링(375)이 배치된다. 베어링(375)은 링형태로 이루어져, 외경을 규정하는 외주면은 결합관부(23a)의 내주면과 결합되고, 내경을 규정하는 내주면은 내조 연결축(121)의 외주면과 결합된다. 또한, 베어링(375)은 상기 외경을 규정하는 외주면과 상기 내경을 규정하는 내주면 사이에 볼, 롤러 등의 구름부재들이 구비되어, 내조 연결축(121)이 회전될 시, 이와 일체로 상기 내경을 규정하는 내주면이 상기 외경을 규정하는 외주면에 대해 회전될 수 있다.The inner tubular connection shaft 121 passes through the coupling tube portion 23a and the bearing 375 is disposed between the inner peripheral surface of the coupling tube portion 23a and the outer peripheral surface of the inner tubular connection shaft 121. [ The outer circumferential surface defining the outer diameter is coupled with the inner circumferential surface of the coupling tube portion 23a and the inner circumferential surface defining the inner diameter is coupled with the outer circumferential surface of the inner tubular connecting shaft 121. The bearing 375 is provided with rolling members such as balls and rollers between the outer circumferential surface defining the outer diameter and the inner circumferential surface defining the inner circumferential surface so that when the inner circumferential connecting shaft 121 is rotated, The specified inner circumferential surface can be rotated with respect to the outer circumferential surface defining the outer diameter.
로어 하우징(24)은 어퍼 하우징(23)의 하측에 배치되어, 어퍼 하우징(23)과의 사이에, 동력전달장치(100)가 수용되는 공간을 형성할 수 있다. 나사나 볼트(381) 등의 체결부재가 로어 하우징(24)과 어퍼 하우징(23)을 차례로 통과한 후, 외조 바닥부(41)에 결합될 수 있다.The lower housing 24 is disposed on the lower side of the upper housing 23 so as to form a space in which the power transmission device 100 is received between the lower housing 24 and the upper housing 23. [ A coupling member such as a screw or bolt 381 may pass through the lower housing 24 and the upper housing 23 in order and then be coupled to the bottom of the outer tank 41.
동력전달장치(100)는 내측에 구동축(310)이 삽입된 관상의 종동축(132)을 포함할 수 있고, 로어 하우징(24)은 중앙부에 종동축(132)이 통과하는 개구부가 형성된다. 로어 하우징(24) 내에는 종동축(132)을 회전 가능하게 지지하는 베어링(374)이 배치될 수 있다. 베어링(374)은 실질적으로 전술한 베어링(375)과 동일한 방식으로 구성될 수 있다. The power transmission apparatus 100 may include a tubular driven shaft 132 having a drive shaft 310 inserted therein and an opening through which the driven shaft 132 passes is formed at a center portion of the lower housing 24. In the lower housing 24, a bearing 374 for rotatably supporting the driven shaft 132 may be disposed. The bearing 374 may be constructed in substantially the same manner as the bearing 375 described above.
클러치(37)는, 구동축(310)과 종동축(132)이 일체로 회전되도록, 종동축(132)과 구동축(310)을 축이음(예를 들어, 종동축(132)과 구동축(310)을 밀착)시키거나(내조회전모드), 종동축(132)을 구동축(310)과 축이음 해제(또는, 분리)시켜, 종동축(132)이 정지된 상태에서 구동축(310)만 회전되도록 할 수 있다(펌핑모드).The clutch 37 is engaged with the driven shaft 310 and the drive shaft 310 so that the drive shaft 310 and the driven shaft 132 are integrally rotated so that the driven shaft 132 and the drive shaft 310 are coupled to each other (for example, Or the driven shaft 132 is disengaged from (or separated from) the drive shaft 310 so that only the drive shaft 310 is rotated in a state where the driven shaft 132 is stopped (Pumping mode).
동력전달장치(100)는 유성기어열(200)과, 유성기어열(200)을 수용하는 기어 하우징(110)을 포함할 수 있다.The power transmission apparatus 100 may include a planetary gear train 200 and a gear housing 110 that receives the planetary gear train 200.
유성기어열(200)은 링기어(210), 제 1 선기어(220), 제 2 선기어(230), 캐리어(240) 및 피니언기어(250)를 포함할 수 있다. 유성기어열(200)은 구동축(310)을 통해 입력된 회전력을 임펠러(70)와 펄세이터(26)를 회전시키기 위한 두 개의 출력으로 전환한다.The planetary gear train 200 may include a ring gear 210, a first sun gear 220, a second sun gear 230, a carrier 240 and a pinion gear 250. The planetary gear train 200 converts rotational force inputted through the drive shaft 310 into two outputs for rotating the impeller 70 and the pulsator 26.
링기어(210)는 내접기어로써, 기어 하우징(110) 내에 고정될 수 있다. 이 경우, 유성기어열(200)은, 구동축(310)과 연결된 제 1 선기어(220)를 통해 동력(또는, 회전력)이 입력되고, 제 2 선기어(230)를 통한 출력은 임펠러(70)를 회전시키고, 캐리어(240)를 통한 출력은 펄세이터(26)를 회전시킨다.The ring gear 210 can be fixed in the gear housing 110 as an internal gear. In this case, the planetary gear train 200 is supplied with power (or rotational force) through the first sun gear 220 connected to the drive shaft 310, and the output through the second sun gear 230 is transmitted to the impeller 70 And the output through the carrier 240 rotates the pulsator 26.
기어 하우징(110)은, 클러치(37)가 내조회전모드일 시, 구동축(310)에 의해 회전된다. 기어 하우징(110)은 종동축(132)과 내조 연결축(121)을 포함한다. 기어 하우징(110)은 전체적으로 중공축이다. 기어 하우징(110)의 상단부는, 허브(31)에 의해 내조(50)와 연결되는 내조 연결축(121)을 구성하고, 내조 연결축(121)에 의해 한정된 중공 내에 임펠러 연결축(350)이 배치된다. 기어 하우징(110)의 하단부는 종동축(132)을 구성하고, 종동축(132)에 의해 한정된 중공 내에 구동축(310)이 배치된다. 클러치(37)에 의해, 종동축(132)이 구동축(310)과 축이음 또는 축이음 해제될 수 있다. The gear housing 110 is rotated by the drive shaft 310 when the clutch 37 is in the internal rotation rotation mode. The gear housing 110 includes a driven shaft 132 and an inner tubular connecting shaft 121. The gear housing 110 is generally a hollow shaft. The upper end of the gear housing 110 constitutes an inner tubular connecting shaft 121 connected to the inner tub 50 by a hub 31 and an impeller connecting shaft 350 in a hollow defined by the inner tubular connecting shaft 121 . The lower end of the gear housing 110 constitutes a driven shaft 132 and the drive shaft 310 is disposed in the hollow defined by the driven shaft 132. The driven shaft 132 can be axially or axially disengaged from the drive shaft 310 by the clutch 37. [
기어 하우징(110)의 상단부(121)와 하단부(132) 사이에는, 유성기어열(200)이 수용되는 수용부(122)가 형성된다. 링기어(210)는 수용부(122) 내에 고정될 수 있다.A receiving portion 122 for receiving the planetary gear train 200 is formed between the upper end portion 121 and the lower end portion 132 of the gear housing 110. The ring gear 210 can be fixed in the receiving portion 122.
보다 상세하게, 기어 하우징(110)은 상부 기어 하우징(120)과 하부 기어 하우징(130)을 포함할 수 있다. 내조 연결축(121)과 상기 수용부는 상부 기어 하우징(120)에 의해 형성될 수 있다. 상부 기어 하우징(120)과 하부 기어 하우징(130)은 나사나 볼트 등의 체결부재(382)에 의해 결합될 수 있다.More specifically, the gear housing 110 may include an upper gear housing 120 and a lower gear housing 130. The inner race connecting shaft 121 and the receiving portion may be formed by the upper gear housing 120. The upper gear housing 120 and the lower gear housing 130 may be coupled by fastening members 382 such as screws or bolts.
종동축(132)은 하부 기어 하우징(130)에 의해 형성될 수 있다. 하부 기어 하우징(130)은, 종동축(132)의 상단에서 반경반향을 따라 외측으로 확장되어 대략 수평한 형태를 이루며, 수용부(122)의 개방된 하단부에 결합되는 플랜지부(131)를 포함할 수 있다.The driven shaft 132 may be formed by the lower gear housing 130. The lower gear housing 130 includes a flange portion 131 that extends outward along the radial direction from the upper end of the driven shaft 132 and has a substantially horizontal shape and is coupled to the lower end portion of the receiving portion 122 can do.
링기어 서포터(320)는 기어 하우징(110)의 수용부(122) 내에서 링기어(210)를 지지하는 것이다. 링기어 서포터(320)는 플랜지부(131)의 상측에 결합된다. 링기어 서포터(320)는 전체적으로 링형으로 이루어져, 개구된 중앙부를 구동축(310)이 통과한다.The ring gear supporter 320 supports the ring gear 210 in the receiving portion 122 of the gear housing 110. The ring gear supporter 320 is coupled to the upper side of the flange portion 131. The ring gear supporter 320 is entirely ring-shaped, and the drive shaft 310 passes through the center of the ring gear supporter 320.
플랜지부(131)의 상면 및 링기어 서포터(320)의 저면 중 어느 하나로부터 적어도 하나의 결합돌기(131a)가 돌출될 수 있다. 결합돌기(131a)는 원주방향을 따라 다수개가 구비될 수 있다. 그리고, 플랜지부(131)의 상면 및 링기어 서포터(320)의 저면 중 다른 하나에는, 각각의 결합돌기(131a)와 대응하는 위치에, 결합돌기(131a)가 삽입되는 결합구(322)가 형성될 수 있다.At least one engaging projection 131a may protrude from either the upper surface of the flange portion 131 or the bottom surface of the ring gear supporter 320. [ A plurality of coupling protrusions 131a may be provided along the circumferential direction. A coupling hole 322 into which the coupling projection 131a is inserted is formed in the other of the upper surface of the flange portion 131 and the lower surface of the ring gear supporter 320 at a position corresponding to each coupling projection 131a .
링기어 서포터(320)의 상면 또는 링기어(210)의 저면 중 어느 하나로부터 적어도 하나의 결합돌기(321)가 돌출될 수 있다. 결합돌기(321)는 원주방향을 따라 다수개가 구비될 수 있다. 그리고, 링기어 서포터(320)의 상면 및 링기어(210)의 저면 중 다른 하나에는, 각각의 결합돌기(321)와 대응하는 위치에, 결합돌기(321)가 삽입되는 결합홈이 형성될 수 있다.At least one engaging projection 321 may protrude from either the upper surface of the ring gear supporter 320 or the lower surface of the ring gear 210. A plurality of coupling protrusions 321 may be provided along the circumferential direction. A coupling groove into which the coupling protrusion 321 is inserted may be formed in the other of the upper surface of the ring gear supporter 320 and the lower surface of the ring gear 210 at a position corresponding to each coupling protrusion 321 have.
캐리어(240)는 기어 하우징(110)의 수용부(122) 내에 배치될 수 있다. 캐리어(240) 내에는, 동축상에 상, 하로 정렬된 제 1 선기어(220)와 제 2 선기어(230)가 배치된다. 또한, 선기어들(220, 230)의 둘레를 따라 배치된 다수개의 피니언기어(250(1), 250(2), 250(3), 250(4))가 캐리어(240)에 의해 회전 가능하게 지지된다.The carrier 240 may be disposed in the receiving portion 122 of the gear housing 110. In the carrier 240, a first sun gear 220 and a second sun gear 230 are arranged coaxially with each other. A plurality of pinion gears 250 (1), 250 (2), 250 (3) and 250 (4) arranged along the circumference of the sun gears 220 and 230 are rotatably supported by the carrier 240 .
도 14를 참조하면, 캐리어(240)는 중앙부가 개구된 링형의 상판부(241)와, 상판부(241) 보다 하측에 배치되고, 중앙부가 개구된 링형의 하판부(242)와, 상판부(241)와 하판부(242) 사이에 배치되고, 펄세이터 연결축(340)의 하단부와 결합되는 축결합판(243)을 포함할 수 있다.14, the carrier 240 includes a ring-shaped upper plate portion 241 having a center portion opened, a ring-shaped lower plate portion 242 disposed at a lower side than the upper plate portion 241 and having a central portion opened, an upper plate portion 241, And a shaft coupling plate 243 disposed between the lower plate portion 242 and the lower end of the pulsator coupling shaft 340. [
축결합판(243)은 펄세이터 연결축(340)이 결합되는 중앙부로부터 방사상으로 연장되는 다수개의 암(arm, 243a)들을 포함할 수 있다. 암(243a)은 피니언기어들(250(1), 250(2), 250(3), 250(4))과 대응하는 개수로 구비될 수 있고, 인접하는 암(243a)들 사이에 피니언기어(250)가 각각 배치될 수 있다. 실시예에서는, 4개의 피니언기어(250)가, 4개의 암(243a)에 의해 구분된 4개의 영역에 각각 구비되었다.The shaft coupling plate 243 may include a plurality of arms 243a extending radially from a central portion to which the pulsator connecting shaft 340 is coupled. The arm 243a may be provided in a corresponding number to the pinion gears 250 (1), 250 (2), 250 (3), 250 (4), and pinion gears (250) may be disposed, respectively. In the embodiment, four pinion gears 250 are provided in four regions separated by four arms 243a.
축결합판(243)의 중앙부에는 펄세이터 연결축(340)의 하단부가 삽입되는 커플링 홈(243r)이 형성될 수 있다. 커플링 홈(243r)은 상기 중앙부의 상면에 형성될 수 있다. 펄세이터 연결축(340)과 커플링 홈(243r) 간의 결합은 스플라인(spline) 또는 세레이션(serration) 결합으로써, 펄세이터 연결축(340)의 하단부에는 스플라인 또는 세레이션이 형성될 수 있고, 커플링 홈(243r)의 내주면에는 상기 스플라인 또는 세레이션과 치합되는 홈이 형성될 수 있다.Coupling grooves 243r may be formed at the center of the shaft coupling plate 243 to receive the lower ends of the pulsator coupling shafts 340. The coupling groove 243r may be formed on the upper surface of the central portion. The coupling between the pulsator coupling shaft 340 and the coupling groove 243r may be a spline or serration coupling so that a spline or serration may be formed at the lower end of the pulsator coupling shaft 340, A groove engaging with the spline or serration may be formed on the inner circumferential surface of the coupling groove 243r.
다만, 이에 한하지 않고, 축결합판(243)을 하측으로부터 상측으로 관통하여 펄세이터 연결축(340)의 하단부와 결합되는 나사나 볼트 등의 체결부재가 구비되는 것도 가능하고, 이 경우, 축결합판(243)에는 커플링 홈(243r)이 형성되지 않아도 무방하다.However, it is also possible to provide a fastening member such as a screw or bolt which penetrates the shaft coupling plate 243 from the lower side to the upper side and engages with the lower end of the pulsator connecting shaft 340. In this case, The coupling plate 243 may not be provided with the coupling groove 243r.
한편, 실시예에서와 같이 커플링 홈(243r)이 형성되는 경우, 축결합판(243)의 저면은, 커플링 홈(243r)과 대응하는 부분이 주변부보다 더 하측으로 돌출될 수 있고, 제 1 선기어(220)를 구동축(310)과 연결하는 임펠러 연결축 커플러(360, 도 7 내지 도 8 참조.)의 상면에는 상기 하측으로 돌출된 부분을 수용하는 홈이 형성될 수 있다.On the other hand, when the coupling groove 243r is formed as in the embodiment, the bottom surface of the shaft coupling plate 243 can protrude further downward than the peripheral portion, corresponding to the coupling groove 243r, A groove may be formed on the upper surface of the impeller coupling shaft coupler 360 (see FIGS. 7 to 8) for connecting the first sun gear 220 to the drive shaft 310.
하판부(242)와 축결합판(243)은 하부 지지대(244)에 의해 연결될 수 있다. 하판부(242)는 대략 수평한 평판형태이고 중앙부가 개구된 링형의 하판링(242a)과, 하판링(242a)의 상면으로부터 돌출되어, 원주방향을 따라 배치된 다수개의 결합보스(242b)를 포함할 수 있다.The lower plate 242 and the shaft coupling plate 243 can be connected by a lower support 244. The lower plate portion 242 includes a ring-shaped lower plate ring 242a having a substantially horizontal flat plate shape and opening at its center and a plurality of engaging bosses 242b projecting from the upper surface of the lower plate ring 242a and disposed along the circumferential direction .
축결합판(243)의 저면에는, 다수개의 결합보스(242b)와 대응하는 위치들에 각각 결합홈이 형성될 수 있다. 하부 지지대(244)는 상하방향으로 길게 연장된 형태로써, 상단이 상기 결합홈 내로 삽입되고, 하단은 결합보스(242b) 내로 삽입될 수 있다.At the bottom surface of the shaft coupling plate 243, coupling grooves may be formed at positions corresponding to the plurality of coupling bosses 242b, respectively. The lower support 244 is elongated in the vertical direction, and the upper end may be inserted into the engagement groove and the lower end may be inserted into the engagement boss 242b.
상판부(241)와 축결합판(243)은 상부 지지대(245)에 의해 연결될 수 있다. 상판부(241)는 대략 수평한 평판의 중앙부가 개구된 링형의 상판링(241a)과, 상판링(241a)의 저면으로부터 돌출되어, 원주방향을 따라 배치된 다수개의 결합보스(241b)를 포함할 수 있다.The upper plate 241 and the shaft coupling plate 243 can be connected by an upper support 245. The upper plate portion 241 includes a ring-shaped upper plate ring 241a having a center portion of a substantially horizontal flat plate open and a plurality of engaging bosses 241b projecting from the bottom surface of the upper plate ring 241a and arranged along the circumferential direction .
축결합판(243)의 상면에는, 다수개의 결합보스(241b)와 대응하는 위치들에 각각 결합홈이 형성될 수 있다. 상부 지지대(245)는 상하방향으로 길게 연장된 형태로써, 하단이 상기 결합홈 내로 삽입되고, 상단은 결합보스(241b) 내로 삽입될 수 있다.Coupling grooves may be formed on the upper surface of the shaft coupling plate 243 at positions corresponding to the plurality of coupling bosses 241b. The upper support 245 is elongated in the vertical direction. The lower end of the upper support 245 may be inserted into the coupling groove, and the upper end of the upper support 245 may be inserted into the coupling boss 241b.
캐리어(240)는, 상판부(241)와 하판부(242)를 연결하는 다수개의 피니언기어축(246)을 포함할 수 있다. 다수개의 피니언기어축(246)은 원주방향을 따라 일정한 간격으로 배치될 수 있고, 각각의 피니언기어축(246)은 암들(243a) 사이의 영역을 통과할 수 있다. 각각의 피니언기어축(246)에 피니언기어(250)가 끼워질 수 있다.The carrier 240 may include a plurality of pinion gear shafts 246 connecting the upper plate portion 241 and the lower plate portion 242. The plurality of pinion gear shafts 246 may be disposed at regular intervals along the circumferential direction, and each pinion gear shaft 246 may pass through an area between the arms 243a. The pinion gear 250 can be fitted to each pinion gear shaft 246.
도 8 내지 도 9b를 참조하면, 피니언기어(250)는 링기어 서포터(320)에 의해 지지될 수 있다. 즉, 피니언기어(250)는 하단부가 링기어 서포터(320)의 상면과 접촉된 상태로 회전될 수 있다. 구체적으로, 피니언기어(250)는 외주면에 기어가 형성된 원통형의 기어 본체(251)와, 기어 본체(251)의 저면으로부터, 피니언기어축(246)이 통과하는 개구부 둘레를 따라 돌출된 링형으로 이루어진 하측 지지리브(253)를 포함할 수 있으며, 피니언기어(250)가 회전될 시 하측 지지리브(253)는 항시 링기어 서포터(320)의 상면과 접촉된다.Referring to Figs. 8 to 9B, the pinion gear 250 can be supported by the ring gear supporter 320. Fig. That is, the pinion gear 250 can be rotated with its lower end in contact with the upper surface of the ring gear supporter 320. More specifically, the pinion gear 250 includes a cylindrical gear body 251 having gears formed on the outer circumferential surface thereof, and a ring-shaped gear body 251 protruding from the bottom surface of the gear body 251 along the periphery of the opening through which the pinion gear shaft 246 passes And the lower support rib 253 always contacts the upper surface of the ring gear supporter 320 when the pinion gear 250 is rotated.
피니언기어(250)는 선기어들(220, 230)과 치합됨과 동시에 링기어(210)와 치합된다. 제 1 선기어(220)는 축결합판(243)의 하측에 배치되고, 제 2 선기어(230)는 축결합판(243)의 상측에 배치되며, 각각의 피니언기어(250)의 하부는 제 1 선기어(220)와 치합되고, 상부는 제 2 선기어(230)와 치합된다.The pinion gear 250 meshes with the sun gears 220 and 230 and is engaged with the ring gear 210 at the same time. The first sun gear 220 is disposed on the lower side of the shaft coupling plate 243 and the second sun gear 230 is disposed on the upper side of the shaft coupling plate 243, Is engaged with the sun gear (220), and the upper portion is engaged with the second sun gear (230).
링기어(210)의 회전이 내조(50)로부터 작용하는 부하에 의해 구속된 상태(예를 들어, 종동축(132)은 정지되고, 구동축(310)만 회전되는 펌핑모드)에서, 구동축(310)에 의해 제 1 선기어(220)가 회전되면, 피니언기어들(250(1), 250(2), 250(3), 250(4))이 회전(또는, 자전)되면서 링기어(210)를 따라 이동(또는, 공전)된다. 이때, 피니언기어들(250)의 공전으로 인해 캐리어(240)가 회전되기 때문에, 축결합판(243)에 결합된 펄세이터 연결축(340) 또한 회전되어 펄세이터(26)도 회전된다.In the state where the rotation of the ring gear 210 is restrained by the load acting from the inner tub 50 (for example, the pumping mode in which the driven shaft 132 is stopped and the drive shaft 310 is rotated only) The pinion gears 250 (1), 250 (2), 250 (3) and 250 (4) rotate (or rotate) when the first sun gear 220 is rotated by the ring gear 210, (Or revolving). At this time, since the carrier 240 is rotated due to the revolution of the pinion gears 250, the pulsator coupling shaft 340 coupled to the shaft coupling plate 243 is also rotated to rotate the pulsator 26 as well.
동력전달장치(100)는 제 1 선기어(220)와 구동축(310)을 연결(축이음)하는 임펠러 연결축 커플러(360)를 포함할 수 있다. 임펠러 연결축 커플러(360)의 하단부는 구동축(310)과 결합되고, 상단부는 제 1 선기어(220)의 중앙에 결합된다.The power transmission apparatus 100 may include an impeller coupling axis coupler 360 connecting (coupling) the first sun gear 220 and the drive shaft 310. The lower end of the impeller coupling shaft coupler 360 is coupled to the drive shaft 310 and the upper end is coupled to the center of the first sun gear 220.
도 7 내지 도 8을 참조하면, 동력전달장치(100)는 2 선기어(230)와 임펠러 연결축(350)을 연결(축이음)하는 구동축 커플러(330)를 포함할 수 있다. 구동축 커플러(330)의 상단부는 임펠러 연결축(350)과 결합되고, 하단부는 제 2 선기어(230)의 중앙에 결합된다. 피니언기어들(250)의 자전에 의해 제 2 선기어(230)가 회전되며, 이때, 구동축 커플러(330)도 함께 회전된다.7 to 8, the power transmission apparatus 100 may include a drive shaft coupler 330 connecting (coupling) the two-wire gear 230 and the impeller coupling shaft 350. The upper end of the drive shaft coupler 330 is coupled to the impeller coupling shaft 350 and the lower end thereof is coupled to the center of the second sun gear 230. The second sun gear 230 is rotated by the rotation of the pinion gears 250, and the drive shaft coupler 330 is also rotated at this time.
보다 상세하게, 구동축 커플러(330)는 임펠러 연결축(350)과 결합되는 관상의 커플러 본체(331)와, 커플러 본체(331)의 외주면으로부터 확장된 대략 원형의 플랜지(332)를 포함할 수 있다.More specifically, the drive shaft coupler 330 may include a tubular coupler body 331 coupled to the impeller coupling shaft 350 and a generally circular flange 332 extending from the outer peripheral surface of the coupler body 331 .
플랜지(332)는, 캐리어(240)의 상판부(241)의 중앙에 형성된 개구부 내에 위치하며, 외경은 제 2 선기어(230)의 외경보다 클 수 있다. 도 9a를 참조하면, 플랜지(332)는 제 2 선기어(230) 보다 외측으로 더 돌출된 부분이 피니언기어들(250)에 의해 지지될 수 있다. 피니언기어(250)는 기어 본체(251)의 상면으로부터, 피니언기어축(246)이 통과하는 개구부 둘레를 따라 돌출된 링형의 상측 지지리브(252)를 포함할 수 있다. 피니언기어(250)가 회전될 시, 상측 지지리브(252)는 항시 플랜지(332)의 상기 돌출된 부분의 저면과 접촉된다.The flange 332 is located in the opening formed in the center of the upper plate portion 241 of the carrier 240 and the outer diameter can be larger than the outer diameter of the second sun gear 230. Referring to FIG. 9A, the flange 332 may be supported by the pinion gears 250 so as to protrude further outward than the second sun gear 230. The pinion gear 250 may include a ring-shaped upper support rib 252 protruding from the upper surface of the gear body 251 around the opening through which the pinion gear shaft 246 passes. When the pinion gear 250 is rotated, the upper support rib 252 always contacts the bottom surface of the protruding portion of the flange 332.
한편, 커플러 본체(331)의 중공을 펄세이터 연결축(340)이 통과하고, 상기 중공 내에는 펄세이터 연결축(340)을 회전 가능하게 지지하는 베어링(371)이 배치될 수 있다. 베어링(371)은 무급유 베어링(oilless bearing)이 적합하나, 반드시 이에 한정되는 것은 아니다.A pulsator connection shaft 340 passes through the hollow of the coupler body 331 and a bearing 371 for rotatably supporting the pulsator connection shaft 340 may be disposed in the hollow. The bearing 371 is preferably an oilless bearing but is not limited thereto.
베어링(371)은 링 형태로써, 외주면은 커플러 본체(331)의 내주면과 접하고, 내주면은 펄세이터 연결축(340)의 외주면과 접한다.The outer peripheral surface of the bearing 371 is in contact with the inner peripheral surface of the coupler main body 331 and the inner peripheral surface of the bearing 371 is in contact with the outer peripheral surface of the pulsator connection shaft 340.
임펠러 연결축(350)은 펄세이터 연결축(340)이 통과하는 중공을 갖는 축으로써, 하단부가 커플러 본체(331)의 개구된 상단을 통해 삽입되며, 이렇게 삽입된 부분은 베어링(371)의 상측에 위치된다. The impeller connecting shaft 350 is a shaft having a hollow through which the pulsator connecting shaft 340 passes and the lower end is inserted through the opened upper end of the coupler main body 331, .
특히, 커플러 본체(331) 내로 삽입된 임펠러 연결축(350)의 하단부는, 적어도 일부분이 베어링(371)의 두께(t)에 대응하여 펄세이터 연결축(340)의 외주면과 이격된 영역 내에 위치된다. 즉, 커플러 본체(331)에 형성된 중공은, 베어링(371)이 수용되는 제 1 영역과, 상기 제 1 영역의 상측에 위치하는 제 2 영역으로 구분될 수 있으며, 특히, 상기 제 2 영역에서 커플러 본체(331)의 내주면은 펄세이터 연결축(340)의 외주면과 이격되고, 이렇게 이격된 공간 내로 임펠러 연결축(350)의 하단부가 삽입된다. 바람직하게는, 커플러 본체(331)의 중공은, 상기 제 2 영역에서의 직경이 상기 제 1 영역에서의 직경 이하의 길이를 갖는다.Particularly, the lower end of the impeller connecting shaft 350 inserted into the coupler main body 331 is positioned in a region at least partially spaced from the outer peripheral surface of the pulsator connecting shaft 340 in correspondence with the thickness t of the bearing 371 do. That is, the hollow formed in the coupler main body 331 can be divided into a first area in which the bearing 371 is received and a second area located above the first area, and in particular, The inner circumferential surface of the main body 331 is spaced apart from the outer circumferential surface of the pulsator connecting shaft 340 and the lower end of the impeller connecting shaft 350 is inserted into the thus separated space. Preferably, the hollow of the coupler body 331 has a diameter in the second region that is less than or equal to the diameter in the first region.
특히, 커플러 본체(331)의 상단부의 외경은, 베어링(371)의 두께는 배제하고, 펄세이터 연결축(340)의 직경과, 임펠러 연결축(350)의 두께 및 커플러 본체(331)의 상단부의 두께를 고려하여 결정되고, 따라서, 커플러 본체(331)의 상단부의 외경을, 베어링(371)이 상기 상단부 내에서 펠세이터 연결축(340)과 임펠러 연결축(350) 사이에 배치되는 경우에 비해, 줄일 수 있는 효과가 있다. Particularly, the outer diameter of the upper end of the coupler main body 331 is determined by excluding the thickness of the bearing 371 and by adjusting the diameter of the pulsator connecting shaft 340, the thickness of the impeller connecting shaft 350, The outer diameter of the upper end portion of the coupler main body 331 is set such that the bearing 371 is disposed in the upper end portion between the sheath connecting shaft 340 and the impeller connecting shaft 350 There is an effect that can be reduced.
커플러 본체(331)는, 상단부의 내주면에 스플라인 또는 세레이션(331s)이 형성될 수 있고, 임펠러 연결축(350)의 하단부 외주면에는 상기 스플라인 또는 세레이션과 치합되는 홈이 형성될 수 있다.A spline or serration 331s may be formed on the inner circumferential surface of the upper end of the coupler main body 331 and a groove may be formed on the outer circumferential surface of the lower end of the impeller coupling shaft 350 to engage with the spline or serration.
임펠러 연결축(350)은, 소경부(350a)와, 소경부(350a)의 상단으로부터 연장되고, 소경부(350a) 보다 큰 외경을 갖는 대경부(350b)를 포함할 수 있다. 소경부(350a)는 내조 연결축(121, 즉, 기어 하우징(110)의 상단부)의 중공 내로 삽입되고, 대경부(350b)는 내조 연결축(121)의 외측(또는, 상측)에서 임펠러 허브(72)와 결합될 수 있다. 대경부(350b)의 외경은, 바람직하게는, 내조 연결축(121)의 상단의 외경 이하이나, 반드시 이에 한정되는 것은 아니다.The impeller connecting shaft 350 may include a small diameter portion 350a and a large diameter portion 350b extending from the upper end of the small diameter portion 350a and having an outer diameter larger than that of the small diameter portion 350a. The small diameter portion 350a is inserted into the hollow of the inner tubular connecting shaft 121 (that is, the upper end of the gear housing 110), and the large diameter portion 350b is inserted into the hollow of the impeller hub (Not shown). The outer diameter of the large-diameter portion 350b is preferably equal to or smaller than the outer diameter of the upper end of the inner tubular connection shaft 121, but is not limited thereto.
구동축 커플러(330)의 커플러 본체(331)로 끼워지는 부분은, 소경부(350a)의 하단부이고, 소경부(350b)는 커플러 본체(331)의 상측에 위치하는 부분이 적어도 하나의 베어링(372, 373)에 의해 지지된다.The portion of the drive shaft coupler 330 which is fitted to the coupler main body 331 is the lower end portion of the small diameter portion 350a and the small diameter portion 350b is located on the upper side of the coupler main body 331 with at least one bearing 372 , 373).
임펠러 연결축(350)에는 링형 스토퍼(341)가 끼워질 수 있고, 베어링(372)의 하측으로의 변위가 스토퍼(341)에 의해 제한된다. 스토퍼(341)의 상측에 위치되고, 임펠러 연결축(350)의 내주면에는 베어링(372)의 상면과 접촉되는 단차진 부분이 형성될 수 있다. 베어링(372)의 상측으로의 변위가 상기 단차진 부분에 의해 제한된다.The ring-shaped stopper 341 can be fitted to the impeller connecting shaft 350 and the downward displacement of the bearing 372 is restricted by the stopper 341. [ A stepped portion contacting the upper surface of the bearing 372 may be formed on the inner circumferential surface of the impeller coupling shaft 350. The upward displacement of the bearing 372 is limited by the stepped portion.
베어링(372)의 상측에 베어링(373)이 더 구비될 수 있다. 내조 연결축(121)의 내주면에는 베어링(373)의 저면이 안착되는 단차진 부분이 형성될 수 있다. 베어링(373)의 저면이 안착되는 단차진 부분에 의해 베어링(373)의 하측으로의 변위가 제한된다. 또한, 베어링(373)의 저면이 안착되는 단차진 부분의 상측에 위치되고, 임펠러 연결축(350)의 외주면으로부터 돌출된 상단 스토퍼(342)가 더 형성될 수 있고, 상단 스토퍼(342)에 의해 베어링(373)의 상측으로의 변위가 제한된다. 상단 스토퍼(373)는 링형태로 이루어질 수 있다.A bearing 373 may further be provided on the upper side of the bearing 372. A stepped portion on which the bottom surface of the bearing 373 is seated may be formed on the inner peripheral surface of the inner tubular connection shaft 121. The downward displacement of the bearing 373 is restricted by the stepped portion where the bottom surface of the bearing 373 is seated. Further, an upper stopper 342 which is located on the upper side of the stepped portion where the bottom surface of the bearing 373 is seated and protrudes from the outer circumferential surface of the impeller connecting shaft 350 can be further formed. By the upper stopper 342 The upward displacement of the bearing 373 is restricted. The upper stopper 373 may be formed in a ring shape.
도 7을 참조하면, 펄세이터 연결축(340)은, 대경부(350b) 내에 위치하는 부분으로부터, 반경방향을 따라 외측으로 리브(345)가 돌출될 수 있고, 대경부(350b)의 내주면에는 리브(345)와 대응하는 형상으로 이루어져, 리브(345)가 삽입되는 홈이 형성될 수 있다. 리브(345)는 링형태로 이루어질 수 있다. 리브(345)가 상기 홈 내에 끼워지는 구조로 인해, 펄세이터 연결축(340)과 임펠러 연결축(350)이 서로에 대해 상하 방향으로 변위되는 것이 방지된다.7, the pulsator connecting shaft 340 can protrude outward along the radial direction from the portion located in the large-diameter portion 350b, and the ribs 345 can protrude from the inner circumferential surface of the large- The rib 345 may have a shape corresponding to that of the rib 345, and a groove into which the rib 345 is inserted may be formed. The ribs 345 may be in the form of a ring. Due to the structure in which the ribs 345 are fitted in the grooves, the pulsator connecting shaft 340 and the impeller connecting shaft 350 are prevented from being displaced upward and downward with respect to each other.
도 17은 펄세이터의 다른 실시예를 도시한 것이다. 도 17을 참조하면, 펄세이터(500)는 이너 펄세이터(510)와, 이너 펄세이터(510) 보다 더 큰 외경을 가지며, 이너 펄세이터(510)의 하측에 배치되는 아우터 펄세이터(520)를 포함할 수 있다.Figure 17 shows another embodiment of pulsator. 17, the pulsator 500 includes an inner pulsator 510 and an outer pulsator 520 having an outer diameter larger than that of the inner pulsator 510 and disposed below the inner pulsator 510, . ≪ / RTI >
본 발명은 이너 펄세이터(510)와 아우터 펄세이터(520)를 서로 다른 속도로 회전시키는데 적용될 수 있다. 즉, 이너 펄세이터(510)가 유성기어열(200)에 의해 회전되는 두 개의 연결축(340, 350) 중 어느 하나의 연결축과 연결되고, 아우터 펄세이터(520)가 다른 하나의 연결축과 연결될 수 있다.The present invention can be applied to rotate the inner pulsator 510 and the outer pulsator 520 at different speeds. That is, the inner pulsator 510 is connected to one of the two connection shafts 340 and 350 rotated by the planetary gear train 200, and the outer pulsator 520 is connected to the other connection shaft 340, Lt; / RTI >
이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 특허청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안될 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (15)

  1. 세탁수가 담기는 외조;The wash tank contains the outer tank;
    세탁물을 수용하고, 상기 외조 내에 회전 가능하게 구비되는 내조;An inner tub which accommodates laundry and is rotatably installed in the outer tub;
    상기 내조 내에 회전 가능하게 구비되는 펄세이터;A pulsator rotatably installed in the inner tank;
    상기 펄세이터와 연결되는 펄세이터 연결축;A pulsator connection shaft connected to the pulsator;
    상기 내조 내에서 상기 펄세이터의 하측에 회전 가능하게 배치되는 임펠러;An impeller rotatably disposed below the pulsator in the inner tank;
    상기 임펠러와 연결되고, 상기 펄세이터 연결축이 통과하는 제 1 중공이 형성된 임펠러 연결축;An impeller connecting shaft connected to the impeller and having a first hollow through which the pulsator connecting shaft passes;
    회전력을 제공하는 구동부;A driving unit for providing a rotational force;
    상기 구동부에 의해 회전되는 구동축; 및A driving shaft rotated by the driving unit; And
    상기 구동축의 회전을 전달하여, 상기 펄세이터 연결축과 상기 임펠러 연결축을 서로 다른 속도로 회전시키는 유성기어열을 포함하고,And a planetary gear train for transmitting the rotation of the drive shaft and rotating the pulsator connection shaft and the impeller coupling shaft at different speeds,
    상기 유성기어열은,Wherein the planetary gear train comprises:
    링기어;Ring gear;
    상기 링기어의 내측에 배치되고, 상기 구동축에 의해 회전되는 제 1 선기어;A first sun gear disposed inside the ring gear and rotated by the drive shaft;
    상기 제 1 선기어에 의해 회전되는 다수개의 피니언기어;A plurality of pinion gears rotated by the first sun gear;
    상기 제 1 선기어의 상측에 배치되고, 상기 다수개의 피니언기어에 의해 회전되는 제 2 선기어; 및A second sun gear disposed above the first sun gear and rotated by the plurality of pinion gears; And
    상기 펄세이터 연결축과 결합되고, 상기 다수개의 피니언기어를 회전 가능하게 지지하며, 상기 다수개의 피니언기어가 상기 링기어를 따라 공전됨에 따라 회전되는 캐리어를 포함하고,A carrier coupled to the pulsator connection shaft and rotatably supporting the plurality of pinion gears and rotated as the plurality of pinion gears are revolved along the ring gear,
    하단부가 상기 제 2 선기어의 중심에 결합되고, 상단부는 상기 임펠러 연결축과 결합되는 임펠러 연결축 커플러를 더 포함하고,Further comprising an impeller coupling shaft coupler whose lower end is coupled to the center of the second sun gear and whose upper end is coupled to the impeller coupling shaft,
    상기 임펠러 연결축 커플러는,The impeller coupling shaft coupler includes:
    상기 펄세이터 연결축이 통과되는 제 2 중공이 형성된 커플러 본체; 및A second hollow formed coupler body through which the pulsator connecting shaft passes; And
    상기 제 2 중공을 규정하는 상기 커플러 본체의 내주면과 상기 펄세이터 연결축의 외주면 사이에 개재되어, 상기 펄세이터 연결축을 지지하는 베어링을 포함하고,And a bearing which is interposed between an inner circumferential surface of the coupler main body defining the second hollow and an outer circumferential surface of the pulsator connecting shaft and supports the pulsator connecting shaft,
    상기 커플러 본체는,The coupler body includes:
    상기 베어링이 수용되는 부분의 상측에 제공되는, 상기 베어링의 두께에 대응하여 상기 펄세이터 연결축의 외주면과 이격된 영역 내로 상기 임펠러 연결축의 하단부가 삽입되는 세탁물 처리장치.And a lower end portion of the impeller coupling shaft is inserted into an area of the impeller coupling shaft which is provided on an upper portion of the portion where the bearing is received, the portion being spaced apart from an outer circumferential surface of the pulsator coupling shaft corresponding to the thickness of the bearing.
  2. 제 1 항에 있어서,The method according to claim 1,
    상기 캐리어는,The carrier
    상기 임펠러 연결축 커플러의 하측에 배치되고, 상기 펄세이터 연결축의 하단과 결합되는 축결합판을 포함하고,And an axial coupling plate disposed below the impeller coupling shaft coupler and coupled to a lower end of the pulsator coupling shaft,
    상기 축결합판의 상면에는,On the upper surface of the shaft coupling plate,
    상기 펄세이터 연결축의 하단부와 결합되는 커플링 홈이 형성되는 세탁물 처리장치.And a coupling groove to be coupled with a lower end of the pulsator connecting shaft is formed.
  3. 제 2 항에 있어서,3. The method of claim 2,
    상기 캐리어는,The carrier
    상기 커플러 본체가 통과하도록 중앙부가 개구된 링형의 상판부;A ring-shaped upper plate portion having a central portion opened to allow the coupler body to pass therethrough;
    상기 상판부보다 하측에 배치되는 하판부; 및A lower plate disposed below the upper plate; And
    원주방향을 따라 다수개가 구비되어, 상기 상판부와 상기 하판부를 연결하고, 상기 피니언기어가 설치되는 피니언기어축을 더 포함하고,Further comprising a plurality of pinion gear shafts arranged in the circumferential direction to connect the upper plate portion and the lower plate portion and to which the pinion gears are mounted,
    상기 축결합판은,The shaft coupling plate includes:
    상기 상판부와 상기 하판부 사이에 배치되고, 상기 상판부 및 상기 하판부와 일체로 회전되는 세탁물 처리장치.Wherein the upper and lower plates are integrally rotated with the upper plate and the lower plate.
  4. 제 3 항에 있어서,The method of claim 3,
    상기 축결합판은,The shaft coupling plate includes:
    상기 커플링 홈이 형성된 중앙부; 및A central portion formed with the coupling groove; And
    상기 피니언기어와 대응하는 개수로 구비되고, 상기 중앙부로부터 방사상으로 연장되는 다수개의 암을 포함하고,And a plurality of arms provided corresponding to the pinion gears and extending radially from the central portion,
    상기 다수개의 피니언기어는,Wherein the plurality of pinion gears comprise:
    상기 다수의 암 중 인접하는 것들 사이에 각각 배치되는 세탁물 처리장치.Wherein the plurality of arms are respectively disposed between adjacent ones of the plurality of arms.
  5. 제 3 항에 있어서,The method of claim 3,
    상기 캐리어는,The carrier
    상기 상판부와 상기 축결합판을 연결하는 적어도 하나의 상측 지지다리; 및At least one upper support leg connecting the upper plate portion and the shaft coupling plate; And
    상기 하판부와 상기 축결합판을 연결하는 적어도 하나의 하측 지지다리를 더 포함하는 세탁물 처리장치.And at least one lower support leg connecting the lower plate and the shaft coupling plate.
  6. 제 3 항에 있어서,The method of claim 3,
    상기 축결합판의 저면은,Wherein the bottom surface of the shaft-
    상기 커플링 홈과 대응하는 부분이 주변부보다 하측으로 돌출되고,A portion corresponding to the coupling groove protrudes downward from the peripheral portion,
    상기 세탁물 처리장치는,The laundry processing apparatus includes:
    상기 제 1 선기어를 상기 구동축과 연결하는 구동축 커플러를 더 포함하고,And a drive shaft coupler coupling the first sun gear to the drive shaft,
    상기 구동축 커플러의 상면에는,On the upper surface of the drive shaft coupler,
    상기 축결합판의 저면 중, 상기 주변부보다 하측으로 돌출된 부분을 수용하는 홈이 형성된 세탁물 처리장치.And a groove for receiving a portion of the bottom surface of the shaft coupling plate projecting downward from the peripheral portion is formed.
  7. 제 1 항에 있어서,The method according to claim 1,
    상기 임펠러 연결축은,The impeller-
    상기 임펠러 연결축의 하단부는,The lower end of the impeller coupling shaft
    상기 제 1 중공을 한정하는 내주면이 상기 펄세이터 연결축의 외주면과 접촉되는 세탁물 처리장치.Wherein the inner circumferential surface defining the first hollow is in contact with the outer circumferential surface of the pulsator connecting shaft.
  8. 제 1 항에 있어서,The method according to claim 1,
    상기 내조와 연결되고, 상기 임펠러 연결축이 통과하는 제 3 중공이 형성된 내조 연결축을 더 포함하고,And an inner tubular connection shaft connected to the inner tub and having a third hollow through which the impeller connecting shaft passes,
    상기 커플러 본체는,The coupler body includes:
    상기 임펠러 연결축의 하단부가 삽입되는 부분이 상기 제 3 중공 내로 삽입되는 세탁물 처리장치.And a portion into which the lower end of the impeller connecting shaft is inserted is inserted into the third hollow.
  9. 제 8 항에 있어서,9. The method of claim 8,
    상기 제 3 중공을 규정하는 상기 내조 연결축의 내주면과 상기 임펠러 연결축의 외주면 사이에 배치되어, 상기 임펠러 연결축을 지지하는 베어링을 더 포함하고,Further comprising a bearing disposed between an inner circumferential surface of said inner tubular connecting shaft defining said third hollow and an outer circumferential surface of said impeller connecting shaft for supporting said impeller connecting shaft,
    상기 커플러 본체는,The coupler body includes:
    상기 임펠러 연결축의 하단부가 삽입되는 부분이, 상기 임펠러 연결축을 지지하는 베어링의 두께에 대응하여 상기 내조 연결축의 내주면이 상기 임펠러 연결축의 외주면과 이격된 영역 내로 삽입되는 세탁물 처리장치.Wherein a portion where a lower end of the impeller coupling shaft is inserted is inserted into a region where an inner circumferential surface of the inner tubular coupling shaft is spaced apart from an outer circumferential surface of the impeller coupling shaft corresponding to a thickness of a bearing supporting the impeller coupling shaft.
  10. 제 9 항에 있어서,10. The method of claim 9,
    상기 임펠러 연결축은,The impeller-
    상기 제 3 중공 내로 삽입되는 소경부; 및A small diameter portion inserted into the third hollow; And
    상기 내조 연결축의 상측에서 상기 임펠러와 결합되고, 상기 소경부보다 큰 외경을 갖는 대경부를 포함하고,And a large diameter portion coupled to the impeller at an upper side of the inner tubular connection shaft and having an outer diameter larger than that of the small diameter portion,
    상기 소경부의 하단부가 상기 커플러 본체로 삽입되는 세탁물 처리장치.And a lower end of the small diameter portion is inserted into the coupler body.
  11. 제 8 항에 있어서,9. The method of claim 8,
    상단부가 상기 내조 연결축을 형성하고, 하단부는 상기 구동축이 통과하는 제 4 중공이 형성된 종동축을 형성하고, 상기 내조 연결축과 상기 종동축 사이에 상기 유성기어열을 수용하는 수용부를 형성하는 기어 하우징; 및And the lower end of the gear housing is formed with a fourth hollow through which the drive shaft passes, the gear housing having an upper end formed on the inner housing and a lower end housed in the gear housing, ; And
    상기 구동축으로부터 종동축으로 전달되는 토크를 단속하는 클러치를 더 포함하는 세탁물 처리장치.And a clutch for interrupting a torque transmitted from the drive shaft to the driven shaft.
  12. 제 11 항에 있어서,12. The method of claim 11,
    상기 링기어는,The ring gear
    상기 수용부 내에 고정되는 세탁물 처리장치.And is fixed in the accommodating portion.
  13. 제 12 항에 있어서,13. The method of claim 12,
    상기 수용부 내에 배치되고, 상기 링기어를 지지하는 링기어 서포터를 더 포함하고,Further comprising a ring gear supporter disposed in the receiving portion and supporting the ring gear,
    상기 다수개의 피니언기어의 각각의 하단부는 상기 링기어 서포터의 상면과 접촉되는 세탁물 처리장치.And a lower end of each of the plurality of pinion gears is in contact with an upper surface of the ring gear supporter.
  14. 제 13 항에 있어서,14. The method of claim 13,
    상기 각각의 피니언기어는,Wherein each of the pinion gears includes:
    외주면에 기어가 형성된 기어 본체; 및A gear body having a gear formed on an outer circumferential surface thereof; And
    상기 기어 본체의 저면으로부터 돌출되고, 상기 피니언기어가 회전될 시, 항시 상기 링기어 서포터의 상면과 접촉을 유지하는 링형의 하측 지지리브를 포함하는 세탁물 처리장치.And a ring-shaped lower support rib projecting from a bottom surface of the gear main body and always in contact with the upper surface of the ring gear supporter when the pinion gear is rotated.
  15. 제 1 항에 있어서,The method according to claim 1,
    상기 베어링은 무급유 베어링인 세탁물 처리장치.Wherein the bearing is an oil-less bearing.
PCT/KR2018/007002 2017-06-21 2018-06-21 Laundry handling apparatus WO2018236159A1 (en)

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JP2014083383A (en) * 2012-10-26 2014-05-12 Haier Asia International Co Ltd Washing machine
JP2015029546A (en) * 2013-07-31 2015-02-16 株式会社東芝 Washing machine
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