• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A full automatic washing machine is provided to execute an agitating mode of executing washing without rotating a washing tub in rotating washing blades. CONSTITUTION: A full automatic washing machine with an outer rotor-type BLDC(Brushless Direct Current) motor, comprises an outer tub installed in an outer case constituting the exterior of the washing machine; a washing tub rotatably installed in the outer tub; washing blades rotatably installed at the inner bottom of the washing tub; a dehydrating shaft(100) rotating the washing tub; a washing shaft(200) combined with the washing blades; a clutch housing(300) covering the dehydrating shaft; a stator assembly(400) producing a rotative magnetic field; a rotor assembly(500) forming a magnetic path and comprising a rotor frame, magnets, and a washing shaft-combining part; a clutch assembly(600) including a sliding coupler(650) controlling power transmission and a control unit to control movement of the sliding coupler; a water discharge valve controlling the washing water in the outer tub; a gear motor for drive device control and water discharge device control to control the action of the brake lever in a first stage state and a second stage state; and a brake assembly(700) comprising the brake lever and a brake pad(780). In the full automatic washing machine, an agitating mode executes washing by restricting the dehydrating shaft and then rotating the rotor assembly surrounding the stator assembly and rotating only the washing blades. In a dehydrating stroke, the dehydrating shaft and the washing shaft are integrally rotated and the brake assembly is released from the dehydrating shaft by completely releasing the brake pad from a drum(160) and operating the water discharge valve.
    公开号:KR20040071410A
    申请号:KR1020030007362
    申请日:2003-02-06
    公开日:2004-08-12
    发明作者:김명덕
    申请人:엘지전자 주식회사；
    IPC主号:
    专利说明:

    Fully automatic washing machine {Washing machine}
    [21] The present invention relates to a fully automatic washing machine, and more particularly, to an external rotor-type motor to increase the output, as well as to a washing method and apparatus for washing the washing machine for performing the washing and rinsing in the stirring mode.
    [22] In general, the automatic washing machine is a product that removes contaminants such as clothing and bedding by using friction and impact of the water flow caused by the emulsification of the detergent and the rotation of the washing blade 30. The sensor detects the amount and type of laundry, automatically sets the washing method, and supplies water to the appropriate level according to the amount and type of laundry.
    [23] As described above, in the conventional fully automatic washing machine, as shown in FIG. 1, a dehydration tank combined laundry tank 20 having a plurality of dehydration holes is rotatably installed in the outer tank 10 installed in the outer case 1. In the lower center of the washing tub 20, the washing wing 30 is rotatably installed. In addition, a driving device including a clutch 40 and a motor 3 for rotating the washing tub 20 and the washing blade 30 is installed below the outer tub 10.
    [24] That is, a motor 3 is installed at one lower side of the outer tub 10, and a clutch 40 for intermittent rotational power of the motor 3 is installed at the side of the motor 3. Pulleys 3a and 40a are coupled to the lower end of the shaft of the motor 3 and the clutch 40, and a belt 5 is connected therebetween.
    [25] As shown in FIG. 2, a clutch pulley 40a is provided below the clutch 40, and the lower washing shaft 51 and the upper washing shaft 35 are sequentially disposed above the clutch pulley 40a. Connected. And the drum 56 is fixed to the lower end of the dehydration shaft 25 is coupled to the lower portion of the washing tank (20). A lower dehydration shaft 57 is coupled to a lower portion of the drum 56, and a planetary gear 52, which is a power reduction means, is installed inside the drum 56.
    [26] And the lower end of the lower washing shaft 51 is in contact with the lower end of the washing shaft 51, the clutch spring 44 and the spring block 45 and the clutch spring 44 surrounding the spring block 45 to be described later A spring boss 43 is installed to adjust the diameter of the spring. In addition, a brake lever 41 having an operating lever 46 and an operating cam 42 is installed at an outer circumference of the spring boss 43.
    [27] The drive device configured as described above is operated as follows during washing and dehydration. First, during washing, the spring boss 43 is engaged with the actuating cam 42 interlocked with the brake lever 41 to twist the end of the clutch spring 44 in the direction of increasing diameter.
    [28] Accordingly, the clutch spring 44 having an increased diameter maintains the spaced apart from the outer circumferential surface of the spring block 45. In this state, the rotational force of the motor 3 is transmitted to the clutch pulley 40a and the lower washing shaft 51 by the belt 5. The transmission force is transmitted from the upper washing shaft (35) to the washing blade (30), the washing tank in the direction opposite to the rotation of the washing blade (30) while being decelerated by the carrier (59) at the same time as the rotation of the washing blade (30). Rotate (20).
    [29] In addition, when the brake lever 41 is pulled during dehydration, the diameter of the clutch spring 44 is reduced as the actuating cam 42 is separated from the gear of the spring boss 43. The clutch spring 44 can engage the lower dehydration shaft 57 and the spring block 45 at the same time by the restoring force of the reduced diameter as described above.
    [30] On the other hand, when the lower washing shaft 51 receives the power of the motor 3 rotates, the lower washing shaft 51 and the fixed spring block 45 rotates like the lower washing shaft 51. At this time, the clutch spring 44 engaging the spring block 45 and the lower dehydration shaft 57 is subjected to rotational force in the winding direction. The rotational force connects the spring block 45 and the lower dehydration shaft 57 with more powerful force. In addition, the drum 56 and the planetary gear 52 may be integrally rotated by the strong connection force.
    [31] Thus, during dehydration, the washing tub 20 as well as the washing blade 30 are rotated at high speed in the same direction to advance dehydration.
    [32] However, the driving device as described above transmits the rotational force of the motor to the power transmission shaft by the belt, thereby reducing the power. In addition, since the structure of the clutch and the deceleration means is very complicated, the production is difficult and the productivity is lowered, which is a cause of failure. In addition, the problem that the eccentricity of the washing tank occurs by attaching the motor to the side of the clutch.
    [33] In order to solve the problem of the eccentricity of the washing tank has been developed a technology for attaching the inner rotor type induction motor attached to the side of the clutch to the lower end of the clutch. The problem that the washing tank is eccentric by attaching the motor to the lower end of the clutch as described above has been solved.
    [34] However, while the inner rotor type induction motor is installed at the lower end of the clutch, the length of the inner rotor type induction motor is added to the length of the clutch, resulting in a problem that the washing machine is overall long. That is, the washing machine is made as high as the length of the inner rotor type induction motor compared to the conventional washing machine, which does not correspond to the washing machine height determined by the height of the consumer.
    [35] When the inner rotor type induction motor is attached to the side of the clutch as described above, it is pointed out that the structure is complicated, the driving force is reduced, and the eccentricity of the washing tank is caused. And when the inner rotor type induction motor is attached to the lower end of the clutch has a disadvantage that the length of the washing machine should be long.
    [36] The present invention is to solve the above problems, the first object is to simplify the structure of the clutch, while obtaining a strong rotational force required for washing and a high rotational speed required for dehydration.
    [37] The second object of the present invention is to provide an automatic washing machine which can prevent the washing tank from being eccentric by applying an outer rotor type BLDC motor and make the length of the washing machine similar to the conventional one.
    [38] And a third object of the present invention is to provide a washing machine that performs a stirring mode for washing without rotating the washing tank during the rotation of the washing blade, while maintaining the system as described above.
    [1] 1 is a longitudinal sectional view schematically showing a conventional fully automatic washing machine;
    [2] FIG. 2 is an enlarged detail view of a main part showing the structure of the driving device of FIG. 1; FIG.
    [3] 3 is a longitudinal sectional view schematically showing a washing machine according to the present invention;
    [4] Figure 4 is a cross-sectional view showing the drainage of FIG.
    [5] 5 is a longitudinal sectional view showing main parts of the driving apparatus according to the present invention;
    [6] 6 is a perspective view showing the configuration of the stator assembly according to the present invention;
    [7] 7 is a perspective view showing the configuration of the rotor assembly according to the present invention;
    [8] Figure 8a is a perspective view and a cross-sectional view showing the position of the sliding coupler in the stirring mode according to the present invention;
    [9] 8b is a perspective view and a cross-sectional view showing the position of the sliding coupler in the dehydration mode according to the present invention;
    [10] Figure 9 is a partial perspective view showing the gear motor and the drive and drainage.
    [11] * Description of the symbols for the main parts of the drawings *
    [12] 100 ..... Dehydration 120 ..... Upper Dehydration
    [13] 140 ..... Lower dehydration 160 ..... Drum
    [14] 200 ..... Laundry shaft 210 ..... Upper laundry shaft
    [15] 220 ..... Planetary Gear 300 ..... Clutch Housing
    [16] 400 ..... Stator Assembly 420 ..... Core
    [17] 440 ..... Coil 500 ..... Rotor Assembly
    [18] 510 ..... rotor frame 520 ..... magnet
    [19] 550 ..... laundry shaft coupling 650 ..... sliding coupler
    [20] 700 ..... Break Assembly 720 ..... Break Lever
    [39] Automatic washing machine according to the present invention for achieving the above object, the outer tub provided in the outer case forming the appearance of the washing machine; A dehydration tank combined washing tank having a plurality of dehydration holes rotatably installed in the outer tank; Washing wings rotatably installed on the inner lower surface of the washing tank; Dewatering to rotate the washing tub; A washing shaft coupled with the washing wing; A clutch housing separated around the deshrinkage; A stator assembly including a core stacked with a plurality of donut-shaped magnetics having poles and a coil wound around the poles to generate a rotating magnetic field; The rotor frame is formed of a metal material and is rotated due to the electrode difference from the stator assembly, and a plurality of magnets are attached to the inner circumference of the rotor frame at predetermined intervals while facing the coil of the stator assembly. A rotor assembly including a washing shaft coupling part configured to transfer the rotational force of the rotor frame to the lower washing shaft in a state in which the lower washing shaft is axially coupled at the center of the frame; A clutch assembly including a sliding coupler for controlling power transmission while moving the dehydration shaft and the washing shaft up and down and a control device for controlling the movement of the sliding coupler; A drain valve controlling the wash water in the outer tub; The operation control in the first stage state in which the drain valve and the brake lever are operated in conjunction with each other, the drain valve is not opened while the brake lever is slightly moved, and the second stage in which the drain valve is opened by further moving the brake lever Gear motors for both drive control and drainage control; And a brake assembly comprising a brake lever and a brake pad for braking rotation of the dehydration shaft; In washing or rinsing, the sliding coupler is moved upward to completely separate the sliding coupler from the washing shaft to block power transmission to the deshrinkage, and then the deshrinkage is rotated in the opposite direction to the washing blade. In order to turn off the two-stage operation gear motor to restrain the dehydration shaft with the brake band, apply power to the stator assembly, rotate the rotor assembly surrounding the stator assembly, and rotate only the washing blade, Stirring mode to execute; In the dehydration stroke, the gear motor is moved to the second stage, the brake pad is completely released from the drum, and the drain valve is operated to drain water. It is possible to rotate and at the same time to release the brake assembly from the de-shrinkage.
    [40] Hereinafter, an embodiment of a fully automatic washing machine driving apparatus according to the present invention will be described in detail with reference to the drawings.
    [41] Figure 3 is a longitudinal sectional view schematically showing the configuration of an embodiment of a washing machine according to the present invention. An outer tank for storing the washing water is installed inside the outer case forming the outer shape of the washing machine. The tub 20 is installed inside the outer tub for washing and dehydration.
    [42] The upper washing shaft 210 is installed in the washing tank, and a washing blade is installed at the upper end of the upper washing shaft 210 to rotate the laundry in the forward and reverse directions.
    [43] And a drainage device is provided below the outer tank. The drainage device is connected to the gear motor 761 of the dual output cam structure by the connecting lever 62. In addition, the washing blade 30 and the washing tub 20 are operated in the forward / reverse rotation according to the fixed mode, the rotation mode, the rotation / fixation mode, and the high speed rotation mode by the first or second stage operation of the gear motor 761. do.
    [44] 4 is a cross-sectional view of the drainage device. The drainage device will be described with reference to FIG. 4.
    [45] The drainage device includes a bellows 76 for opening the drain valve 64 during the drain stroke, and first and second rods for guiding the bellows 76 and the first and second springs 79 and 80. 77 and 78 and a drain valve for moving between the connecting hose 65 of the washing tub 20 and the drain hose 66 by moving according to the guidance of the first and second rods 77 and 78 ( 64).
    [46] A first spring 79 is inserted into the first rod 77 so that both ends thereof are fixed to the groove of the drain valve 64 and the groove of the fixing piece 63a. This is formed and provided on the same line as the rib 82 of the second rod 78. In addition, a second spring 80 and a bellows 76 are fastened to the outer circumferential surface of the second rod 78.
    [47] In the drainage device configured as described above, the variable protrusion 67 opens or closes the drain valve 64 according to each operation mode according to the pulling operation of the connection lever 62. This will be described in more detail.
    [48] The drainage device applies power to the gear motor 761 mounted on the washing tub 20 of the fully automatic washing machine at the time of drainage, and when the connecting lever 62 is pulled by a predetermined distance D, the first rod 77 The first spring 79 installed in the interior is pulled out. At this time, the first rod 77 is moved by a predetermined distance D by the elasticity of the first spring 79, but does not affect the second rod 76.
    [49] At this time, the variable protrusion 67 is fixed to the brake lever 720 and the predetermined position (69a) of the brake assembly 700 to be described later, when the connecting lever 62 is pulled at a predetermined distance (D) Push the brake lever 720 out.
    [50] At this time, the pulling distance is equal to or less than the distance E between the step 81 formed on the inner circumferential surface of one end of the first rod 77 and the rib 82 formed on the outer circumferential surface of the second rod 78.
    [51] After that, when the gear motor 761 further pulls the connecting lever 62 in the first stage of operation, the first lever 77 is pulled out while the connecting lever 62 and the brake lever 720 and the variable protrusion 67 are pulled out. The second spring is compressed by pushing the ribs 82 formed on the inner circumferential surface of one end of the second rod 78 when the stepped portion 81 formed on the outer circumferential surface of the circumferential surface is formed.
    [52] As the second spring is compressed, the bellows 76 is contracted to open the drain valve 64, thereby discharging the washing water in the washing tub 20 to the outside.
    [53] Then, when the gear motor 761 is turned off, the connecting lever 62, the brake lever 720, the variable projection 67, the second rod 78, the first spring 79 is the second spring ( 80 and the bellows 76 and the first rod 77 are also returned to the initial state by the restoring force of the brake lever 70 and the brake lever 70.
    [54] The bellows 76 and the drain valve 64 close the connection hose 65 and the drain hose 66 to stop the drainage.
    [55] Figure 5 is a longitudinal sectional view of the main part schematically showing the configuration of an embodiment of a washing machine driving apparatus according to the present invention. An outer tank for storing the washing water is installed inside the outer case forming the outer shape of the washing machine. Inside the outer tub, a washing tank for both washing and dehydration is installed. The upper washing shaft 210 is installed in the washing tank, and the upper end of the upper washing shaft 210 is provided with a washing wing for rotating the laundry in the forward and reverse directions.
    [56] The dewatering shaft 100 for rotating the washing tub is directly connected to the washing tub, and the upper dehydrating shaft 120 for rotating the washing tub is connected to the upper dehydrating shaft 120, and a cylindrical drum having teeth formed on a lower inner circumferential surface thereof. 160, the lower dehydration shaft 140 is connected to the lower end of the drum 160 and transmits the rotational force of the motor to the upper dehydration shaft 120.
    [57] The upper end of the upper dehydration shaft 120 is coupled to the lower connection of the washing tank to transmit the rotational force of the motor to the washing tank. For example, the upper portion of the upper dehydration shaft 120 is formed in an octagonal shape, it is possible to efficiently transmit the rotational force to the washing tank. The upper dehydration shaft 120, the drum 160, the lower dehydration shaft 140 is coupled to each other by interference fit.
    [58] In order to support the rotation of the upper dehydration shaft 120, an oilless bearing 180 is installed between the upper dehydration shaft 120 and the upper washing shaft 210. In addition, an outer circumferential protrusion 211 is formed on the upper washing shaft 210 so that the upper washing shaft 210 is fixed at a constant height, and the outer circumferential protrusion 211 is disposed at an upper end of the oilless bearing 180. Is supported by.
    [59] The oilless bearing 180 has a structure in which oil is supplied to the outside when heat is generated in a portion in contact with the oilless bearing 180. That is, when the upper washing shaft 210 rotates in the upper dehydration shaft 120, if the heat generated in the oilless bearing 180 by friction, the oil in the oilless bearing 180, the upper washing shaft 210 and the upper Exit between the dehydration shaft 120 to maintain a smooth rotation.
    [60] In addition, a plurality of planetary gears 220 are installed on the inner circumferential surface of the drum 160 to reduce the rotation speed of the motor while transmitting power to the upper washing shaft 210. The planetary gear 220 penetrates a hole in the longitudinal direction of the center portion, and the hole axially coupled to the carrier 230 is coupled to the hole to support the planetary gear 220 and rotate at the same time. Do.
    [61] The planetary gear 220 rotates in engagement with a sun gear 242 to be described later between the carriers 230 that support the upper and lower portions of the shaft 222. In addition, since the planetary gear 220 and the drum 160 rotate simultaneously when dehydration, the planetary gear 220 revolves around the sun gear 242.
    [62] In addition, a round octagonal groove is formed in the upper portion of the carrier 230 to be combined with the lower end of the upper washing shaft 210.
    [63] The lower washing shaft 240 is coupled to the inside of the lower dehydration shaft 140 to transmit power of the motor to the planetary gear 220. A bearing is inserted between the lower laundry shaft 240 and the lower dehydration shaft 140 to support a smooth rotation of the lower laundry shaft 240. In addition, the upper end of the lower washing shaft 240 is engaged with the planetary gear 220, a sun gear 242 for transmitting the power of the lower washing shaft 240 to the planetary gear 220 is formed.
    [64] The power generated by the motor is transmitted to the solar gear 242, the planetary gear 220, the carrier 230, and the upper laundry shaft 210 in order through the lower washing shaft 240.
    [65] In addition, a clutch housing 300 including an upper clutch housing 300a and a lower clutch housing 300b is disposed below the upper dehydration shaft 120 and outside the upper portion of the drum 160 and the lower dehydration shaft 140. It is formed by screwing. The clutch housing 300 serves to protect the drum 160 and is coupled to the upper and lower dehydration shafts 120 and 140 through upper and lower bearings 330 and 340 to support the upper and lower dehydration shafts 120 and 140.
    [66] And, the clutch housing 300 is coupled to the bracket fixed inside the washing machine serves to fix the components inside the clutch housing 300.
    [67] On the other hand, the rotary device for generating the rotational force of the dehydration shaft 100 and the washing shaft 200, the rotor assembly 500 which is a rotor directly connected to the lower washing shaft 240 and the lower end of the clutch housing 300 It is configured to include a stator assembly 400 is a stator coupled to generate a rotating magnetic field.
    [68] 6 shows a stator assembly 400 according to the present invention.
    [69] As illustrated, the stator assembly 400 includes a magnetic core 420 in which a plurality of magnetic bodies are stacked and a coil 440 wound around a pole 426 integrally formed on an outer circumferential surface of the core 420, and the core 420. And upper and lower insulators 460 (460a and 460b) for preventing contact between the coil and the coil 440.
    [70] The core 420 is configured by stacking a thin iron plate in the form of a donut. The pole 426 may be integrally formed with the core 420 on the outer circumferential surface of the core 420 and may be wound around the coil 440 that forms a magnetic force.
    [71] In addition, a plurality of fastening protrusions 422 protruding from the center of the core 420 to the inner circumferential surface may be provided with fastening holes 424 to screw the stator assembly 400 to the clutch housing 300. And one side of the coil 440 is formed with a three-phase terminal for supplying the applied power. The stator assembly 400 functions to generate a rotating magnetic field by an alternating current.
    [72] And Figure 7 shows the interior and side cross-sectional view of the rotor assembly 500 according to the present invention.
    [73] The rotor assembly 500 is installed on the outer periphery of the stator assembly 400 to generate a rotational force due to an electrode difference from the stator assembly 400. The rotor assembly 500 includes a rotor frame 510 forming an appearance and a magnet 520 attached to the rotor frame 510.
    [74] The rotor frame 510 of the rotor assembly 500 is formed by pressing a steel plate. The magnet frame 520 is mounted on the sidewall of the rotor frame 510 to form a step 530 supporting the lower end of the magnet 520. In addition, a washing shaft coupling part 550 to which the lower washing shaft 240 is coupled is formed at the center of the rotor frame 510. The lower washing shaft 240 is engaged with the washing shaft coupling part 550 to transfer the rotational force of the rotor assembly 500 to the washing tank.
    [75] By configuring the rotor frame 510 of the rotor assembly 500 as described above, the heat generated when the motor is driven can be smoothly conducted to the rotor frame 510. In addition, the rotor frame 510 replaces the rotor frame 510 and the magnet 520 with a role of a back yoke to form a magnetic path, thereby reducing manufacturing processes and components.
    [76] And the upper end of the washing shaft coupling portion 550 is provided with a coupling member 550a formed separately from the rotor frame 510. The engagement member 550a may be formed by injection molding or die casting. In addition, the coupling member 550a may be selectively engaged with a sliding coupler 650 to be described later.
    [77] On the other hand, the clutch assembly 600 is inserted into the rotor assembly 500 to control the rotation of the dehydration shaft 100 and the washing shaft 200.
    [78] 8A and 8B show a perspective view of the clutch assembly 600 and a cross section of the driving device.
    [79] As shown in FIGS. 8A and 8B, the clutch assembly 600 converts the rotational motion of the clutch operation motor 620 and the clutch operation motor 620 into linear motion to provide the power of the clutch motion. The coupling link 630, the detachable lever 640 is selectively inclined by the linear movement of the link link 630, the coupling member 550a and placed on the top of the coupler support portion 640b of the detachable lever 640 and It comprises a sliding coupler 650 for sliding the outer peripheral surface of the lower washing shaft (240).
    [80] The clutch assembly 600 is screwed and fixed to the lower portion of the lower clutch housing 300b.
    [81] The link link 630 is a motor connecting portion 630a connected to one side of the clutch operation motor 620 and the link body portion 630b formed integrally with the motor connecting portion 630a and forming a body of the link link 630. ), A spring penetrating portion 630c penetrated through a hole formed at one side of the link body portion 630b, and an end is coupled to a detachable lever 640 and coupled to an outer circumferential surface of the spring tightening portion 630c to generate elasticity. It is configured to include a spring (630d) to make. An end of the spring fastening portion 630c penetrating a hole formed at one side of the link body portion 630b is integrally formed with a stepped spring so that the spring 630d is formed. It does not come out of the spring fastening part 630c.
    [82] In addition, the detachable levers 640 and 640a and 640b are formed in a N-shape, including a lever body part 640a connected to the connection link 630 and a coupler support part 640b on which the sliding coupler 650 is placed. One end of the lever body portion 640a is hinged rotatably with the spring fastening portion 630c of the connection link 630. And the other end is formed with a projection (not shown) is coupled to the hinge hole 660c to be described later formed on the end of the stopper 660.
    [83] The coupler support part 640b is bent almost vertically from the lever body part 640a and extends into two branches. The sliding coupler 650 is stably placed on top of the two branched branches. In addition, a protrusion (not shown) for supporting the spring 660e of the stopper 660 is formed at one side of the coupler support part 640b.
    [84] The sliding coupler 650 is formed in a cylindrical shape as shown in Figures 8a and 8b. The upper portion of the cylindrical shape has a surface protruding in a disk shape, and the upper portion of the disk shape forms a plane.
    [85] The inner circumferential surface of the sliding coupler 650 is formed with a serration, and is movable up and down along the outer circumferential surface of the engagement member 550a and the lower circumferential surface of the lower dehydration shaft 240. When the sliding coupler 650 is engaged with the coupling member 550a and the lower dehydration shaft 240 at the same time, the rotational force of the motor can be directly transmitted to the washing shaft.
    [86] In addition, the sliding coupler 650, the first position (lower position) to be engaged with the engaging member 550a and the lower dehydration shaft 240 at the same time, and the second position (upper position) to be engaged only to the lower dehydration shaft 240 Up and down sliding of the furnace is possible.
    [87] The stopper 660 includes a fastening hole 660a for screwing the clutch assembly 600 to the lower clutch housing 300b, and a hinge hole 660c rotatably coupled to the end of the lever body 640a. ), A lever support part 660d for supporting the lever body part 640a, a spring 660e for elasticity during the inclined operation of the coupler support part 640b, and a spring support part 660f for supporting the spring 660e. It is configured to include).
    [88] An operation of the clutch assembly 600 will be described with reference to FIGS. 8A and 8B. 8B illustrates a connection link 630, a detachable lever 640, a sliding coupler 650, and a stopper at the first position in which the sliding coupler 650 is simultaneously engaged with the lower dehydration shaft 140 and the engagement member 550a. 660 is represented. 8A illustrates a connection link 630, a detachable lever 640, a sliding coupler 650, and a stopper 660 in the second position in which the sliding coupler 650 is engaged only with the lower dehydration shaft 140.
    [89] 8B to 8A, the operation of sliding the sliding coupler 650 upward will be described.
    [90] First, the clutch operation motor 620 is rotated under control by a microprocessor. The link link 630 is pulled toward the clutch operation motor 620 by the rotational movement of the clutch operation motor 620. In addition, by the movement of the connecting link 630, the detachable lever 640 is inclined toward the clutch operation motor 620, the upper end of the lever body portion 640a around the hinge hole (660c). And by tilting the lever body portion 640a, the coupler support portion 640b is inclined so that an end thereof faces the lower end of the stopper 660.
    [91] At this time, the sliding coupler 650 lying on the upper end of the coupler support part 640b is slid upwards on the gear formed on the outer circumferential surface of the lower dehydration shaft and the gear formed on the outer circumferential surface of the engagement member 550a. do.
    [92] The brake assembly 700 for restricting the rotation of the drum 160 penetrates the side of the lower clutch housing 300b and protrudes out of the clutch housing 300. The brake assembly 700 is used when only the washing shaft 200 should be rotated during washing and when the dehydrating shaft should be momentarily stopped during dehydration.
    [93] As shown in FIG. 5, the brake assembly 700 penetrates through the brake lever 720 for operation, the upper clutch housing 300a, the brake lever 720, and the lower clutch housing 300b. A brake pad coupled to the shaft 740 and the through shaft 740 and connected to the brake spring 760 for providing elasticity of the brake lever 720 and the brake lever 720 to brake the drum 160. 780, and a brake hinge shaft 790 is coupled to the end of the brake pad 780 when the brake lever 720 is pressed to act as a hinge.
    [94] The brake assembly 700 is operated by the gear motor 761. That is, the brake assembly 700 is controlled by the operation of pulling and returning the brake lever 720 of the brake assembly 700 while the gear motor 761 operates in one or two stages.
    [95] When the gear motor 761 is not in operation, that is, in the off state, the brake pad 780 of the brake assembly 700 is contracted to surround and constrain the drum 160. However, when the gear motor 761 operates in the first or second stage, the brake pad 780 is relaxed, and the drum 160 is released from the brake pad 780 to allow free rotation.
    [96] When the drum 160 is restrained, the dehydration shaft 100 is also restrained, and the rotation of the washing tub 20 is impossible. However, when the drum 160 is released from restraint, the dehydration shaft 100 is freely rotatable, so the washing tub 20 is freely rotatable.
    [97] 9 shows a gear motor 761 and each device for controlling the drive device and the drainage device.
    [98] As shown in FIG. 9, the brake lever 720 and the drainage device are formed in a straight line on the side of the gear motor 761. The gear motor 761 may simultaneously control the brake lever 720 and the drainage device by the connection lever 762 and the connection piece 763 of the gear motor 761.
    [99] The connection lever 762 may protrude from one side of the gear motor 761 to horizontally move the connection piece 763. And the other side of the connecting lever 762 is formed in the 'T' shape.
    [100] The connecting piece 763 includes a fixed piece 763a connected to the first spring 79 of the drain valve 64, a variable protrusion 767 coupled to a side of the fixed piece 763a, and the gear motor. It comprises a locking piece 768 caught in the connecting lever 762 of 761. The locking piece 768 forms a 'c' shape having a lower opening, and may hang the 'T' shaped locking protrusion 775 formed at an end portion of the connection lever 762.
    [101] Meanwhile, the control relationship between the brake lever 720 and the drainage device by the gear motor 761 will be described.
    [102] When the gear motor 761 operates in one stage, the connecting lever 762 moves the connecting piece 763 in parallel, and the brake lever 720 is pulled toward the gear motor 761. At this time, the brake fabric 780 of the brake assembly 700 is relaxed, and the drum 160 is released from restraint. However, as described above, since the drainage device operates only by a predetermined distance D within one rod by the first stage operation of the gear motor 761, the drain valve 64 is not opened.
    [103] On the other hand, when the gear motor 761 operates in two stages, the brake pad 780 is relaxed to release the drum 160 from restraint as in the first stage operation. However, due to the two-stage operation of the gear motor 761, the drainage device is operated through two rods, and the drain valve 64 is opened.
    [104] As described above, the driving device and the drainage device may be sequentially or simultaneously controlled by the first and second steps of the gear motor 761.
    [105] It looks at the various washing mode by the washing machine constituting the above configuration.
    [106] Referring to FIG. 8A, the washing tub 20 is fixed and looks at the case of the stirring mode in which washing and rinsing are performed while rotating only the washing blade 30.
    [107] First, the clutch operation motor 620 operates, and the link link 630 linearly moves toward the clutch operation motor 620. The detachable lever 640 is inclined by the linear movement of the connection link 630, and by the inclination, the coupler support part 640b slides the sliding coupler 650 upward. At this time, the sliding coupler 650 is moved (second position) to be engaged only in the lower dehydration shaft 140.
    [108] When the driving device is operated in the above state, the rotor assembly 500 rotates around the stator assembly 400 about the lower washing shaft 240. In addition, only the washing shaft 200 is rotated by the rotation of the rotor assembly 500, and the washing blade 30 is rotated in the rotational direction of the drive motor, and the washing and rinsing is performed.
    [109] At this time, the gear motor 761 does not operate and the brake pad 780 is fixed and the drum 160 is in a restrained state. And the drain valve 64 is also in a closed state.
    [110] At this time, looking at the rotational force transmission process, the rotational force by the rotation of the rotor assembly 500, the engaging member 550a of the rotor frame 530, the lower washing shaft 240 coupled to the engaging member 550a, planetary It is transmitted to the gear 220, the carrier 230, the upper washing shaft 210. The dehydration shaft 100 does not rotate because the drum 160 is restrained by the brake pad 780.
    [111] As described above, the planetary gear 220 rotates in a direction opposite to the sun gear 242 of the lower washing shaft 240 in the state in which the drum 160 is restrained (off state of the brake pad). At the same time, the drum 160 revolves around the sun gear 242 in the same direction.
    [112] As the planetary gear 220 revolves as described above, the upper laundry shaft 210 connected to the carrier 230 rotates in the same direction as the revolution of the planetary gear 220 inside the upper dehydration shaft 120. The washing blade 30 coupled to the upper washing shaft 210 also rotates in the same direction as the planetary gear 220 to perform washing and rinsing.
    [113] Meanwhile, in the dehydration mode, the drum 160 is released from the restraint by the two-stage operation of the gear motor 761, and the drain valve proceeds in an open state.
    [114] As shown in FIG. 8B, the clutch operation motor 620 rotates in the opposite direction as the washing time, and the detachable lever 640 is vertical. The coupler support part 640b is in an equilibrium state, and the sliding coupler 650 mounted on the coupler support part 640b moves downward by its own weight. As described above, the sliding coupler 650 moved downward is engaged (first position) simultaneously with the lower dehydration shaft 140 and the engagement member 550a.
    [115] At this time, looking at the rotational force transmission process, the rotational force by the rotation of the rotor assembly 500, the engagement member 550a of the rotor frame 530, the sliding coupler 650 engaged with the engagement member 550a, the sliding The lower dehydration shaft 140, the drum 160, the upper dehydration shaft 110, and the washing tank 20 engaged with the coupler 650 are moved.
    [116] The planetary gear 220 does not rotate and does not rotate inside the drum 160 because the drum 160 of the dehydration shaft 100 rotates at the same speed as the lower washing shaft 240. However, it rotates around the sun gear 242 between the sun gear 242 and the drum 160.
    [117] As described above, according to the present invention, the motor and the clutch assembly, which are conventional washing machine power transmission methods, are separately configured, and the motor is directly connected to the lower portion of the clutch assembly instead of connecting the belt assembly therebetween. That is, by using the outer rotor type motor solves the problem that the washing machine is long as well as the eccentricity of the washing tank.
    [118] In addition, washing and rinsing are performed in a stirring mode by increasing the driving force by using an outer rotor type motor in which the rotor assembly constituting the rotating device is disposed outside the stator assembly as the stator.
    [119] Within the scope of the basic technical idea of the present invention, of course, many other modifications are possible to those skilled in the art. Therefore, the invention should of course be interpreted by the appended claims.
    [120] According to the present invention, the outer rotor-type motor is directly connected to the lower side of the clutch, thereby preventing the eccentricity of the washing tank and the washing machine from being lengthened, thereby increasing the output of the motor. And it is possible to improve the washing performance because the washing and rinsing agitation at the output of the increased motor.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] An outer tub installed in an outer case forming an outer appearance of the washing machine;
    A dehydration tank combined washing tank having a plurality of dehydration holes rotatably installed in the outer tank;
    Washing wings rotatably installed on the inner lower surface of the washing tank;
    A dewatering shaft 100 for rotating the washing tank;
    A washing shaft 200 coupled with the washing blade;
    A clutch housing 300 surrounding the dewatering shaft 100 and separated up and down;
    A stator assembly 400 for generating a rotating magnetic field, including a core 420 having a plurality of donut-shaped magnets in which poles are formed, and a coil 440 wound around the poles;
    The rotor frame 510 is formed of a metal material and is rotated due to the electrode difference from the stator assembly 400, and the coil 440 of the stator assembly 400 is formed at an inner circumference of the rotor frame 510. The magnet 520 is attached to the plurality of predetermined intervals at a predetermined interval, and is coupled to the lower washing shaft 240 at the center of the rotor frame 510 to reduce the rotational force of the rotor frame 510 to the lower washing shaft 240. Rotor assembly 500 consisting of a laundry shaft coupling portion 550 to be delivered to;
    A clutch assembly 600 including a sliding coupler 650 for controlling power transmission and a control device for controlling movement of the sliding coupler 650 while moving the dehydration shaft 100 and the washing shaft 200 up and down. ;
    A drain valve 64 controlling the washing water in the outer tub;
    The drain valve 64 and the brake lever 720 are operated in conjunction with each other, and the drain valve 64 is not opened in the first stage in a state in which the brake lever 720 is slightly moved, and the brake lever 720 is further moved. A gear motor 761 for driving control and drainage control combined with a two-stage operation in which the drain valve 64 is opened;
    And a brake assembly (700) comprising a brake lever (720) and a brake pad (780) for braking the rotation of the dehydration shaft (100);
    In washing or rinsing, the sliding coupler 650 is moved upward to completely separate the sliding coupler 650 from the washing shaft 200 to block power transmission to the dehydration shaft 100. In order to control the dehydration shaft 100 to rotate in the opposite direction to the washing blade, the two-stage operation gear motor 761 is turned off, the dehydration shaft is restrained by the brake band, and then the power is supplied to the stator assembly 400. A stirring mode for rotating the rotor assembly 500 surrounding the stator assembly 400 to rotate only the washing blades and performing washing;
    In the dehydration stroke, the gear motor 761 is moved to a two-stage state to completely release the brake pad 780 from the drum 160 and operate the drain valve 64 to drain water. The outer rotor to move the 650 to the lower to allow the dehydration shaft 100 and the washing shaft 200 to be integrally rotated and at the same time release the brake assembly 700 from the dehydration shaft 100 Fully automatic washing machine equipped with BLDC motor.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2003-02-06|Application filed by 엘지전자 주식회사
    2003-02-06|Priority to KR1020030007362A
    2004-08-12|Publication of KR20040071410A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020030007362A|KR20040071410A|2003-02-06|2003-02-06|Washing machine|
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