KR20040071420A - Washing machine - Google Patents

Abstract

PURPOSE: A full-automatic washing machine is provided to prevent the washing machine from lengthening and eccentricity of a washing tub and to increase power output of a motor by directly connecting an outer rotor-type motor to the lower side of a clutch. CONSTITUTION: A full-automatic washing machine is composed of an outer tub installed in an out case forming the exterior shape; a washing tub rotatably mounted in the outer tub; a pulsator rotatably disposed in the inner lower side of the washing tub; a dewatering shaft(100) for rotating the washing tub; a washing shaft(200) combined with the pulsator; a clutch housing(300) for covering the dewatering shaft; a stator assembly(400) for generating rotational magnetic field; a rotor assembly(500) for forming a magnetic path and rotary power; a clutch assembly(600) having a sliding coupler(650) for controlling the transmission of power with sliding on the dewatering and washing shafts and a control unit for controlling movement of the sliding coupler; a projection(652) formed on the upside of the sliding coupler and selectively joined to a combining hole(660b) formed at a stopper(660) of the clutch assembly; and a brake assembly(700) for braking rotation of the dewatering shaft.

Description

Fully automatic washing machine {Washing machine}

The present invention relates to a fully automatic washing machine, and more particularly, to a method of controlling a washing machine for washing and rinsing by using an agitator mode and a reverse rotation mode as well as increasing an output by forming an outer rotor type motor. It is about.

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.

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 blade 30 is rotatably installed. And the lower part of the outer tub 10 is provided with a drive device including a clutch 40 and the motor (3) for rotating the washing tank 20 and the washing wing (30).

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.

As shown in FIG. 2, a clutch pulley 40a is installed at the lower end of 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 dewatering shaft 25 is coupled to the lower portion of the washing tank. 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.

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.

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 that operates by operating the brake lever 41 to twist the end of the clutch spring 44 in a direction in which the diameter increases.

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 to rotate the washing tub 20 in the direction opposite to the rotation of the washing blade 30.

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. By the restoring force of the reduced diameter as described above, the clutch spring 44 can be engaged with the lower dehydration shaft 57 and the spring block 45 at the same time.

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.

Thus, during the dehydration, the washing tub 20 as well as the washing blade 30 are rotated at high speed in the same direction to advance dehydration.

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.

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.

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.

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.

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.

The second object of the present invention is to provide an automatic washing machine which can prevent the unbalance of the washing tank by applying an outer rotor type BLDC motor, and can make the length of the washing machine similar to the existing one.

And a third object of the present invention is to provide a washing machine that performs a washing and stirring mode for washing without rotating the washing tank during the rotation of the washing blade and the reverse rotation mode for rotating the washing wing and the washing tank while rotating the washing blade as described above. will be.

1 is a longitudinal sectional view schematically showing a conventional fully automatic washing machine;

FIG. 2 is an enlarged detail view of a main part showing the structure of the driving device of FIG. 1; FIG.

3 is a longitudinal sectional view showing main parts of a driving apparatus according to the present invention;

4 is a perspective view showing the configuration of the stator assembly according to the present invention;

5 is a perspective view showing the configuration of the rotor assembly according to the present invention;

Figure 6a 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;

Figure 6b is a perspective view and a cross-sectional view showing the position of the sliding coupler in the reverse rotation mode according to the present invention;

Figure 6c 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;

* Description of the symbols for the main parts of the drawings *

100 ..... Dehydration 120 ..... Upper Dehydration

140 ..... Lower dehydration 160 ..... Drum

200 ..... Laundry shaft 210 ..... Upper laundry shaft

220 ..... Planetary Gear 300 ..... Clutch Housing

400 ..... Stator Assembly 420 ..... Core

440 ..... Coil 500 ..... Rotor Assembly

510 ..... rotor frame 520 ..... magnet

550 ..... laundry shaft coupling 650 ..... sliding coupler

700 ..... Break Assembly 720 ..... Break Lever

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 in which a plurality of donut-shaped magnetics having poles are formed, and a coil wound around the poles, for generating 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; And a brake assembly for braking the rotation of the dehydration shaft; In washing or rinsing, the sliding coupler is moved upwards to completely remove the sliding coupler from the washing shaft, thereby preventing the rotor from being transmitted to the deshrinkable shaft, and then applying power to the stator assembly to supply the power to the stator assembly. Rotating the rotor assembly surrounding the assembly to rotate the washing blade, the washing blade stirring mode for performing the washing after fixing the dehydration shaft with the brake assembly in order to control the dehydration to rotate in the reverse direction to the washing blade; Combination mode for executing the washing operation by combining the washing tank rotation mode to release the brake assembly from the dehydration shaft in the washing wing stirring mode, the rotational force of the rotor assembly is transmitted to the dehydration shaft via the planetary gear to rotate the dehydration shaft; The sliding coupler is moved downward to allow the dehydration shaft and the washing shaft to be integrally rotated, and at the same time, the brake assembly is released from the dehydration shaft to perform a dehydration mode for performing dehydration.

And automatic washing machine according to the present invention, the outer tub provided in the outer case forming the 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; 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 in which a plurality of donut-shaped magnetics having poles are formed, and a coil wound around the poles, for generating 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; And a brake assembly for braking the rotation of the dehydration shaft; In the washing or rinsing operation, the sliding coupler is moved upwards to completely remove the sliding coupler from the washing shaft, thereby preventing the rotor assembly from being transmitted to the dehydrating shaft, and then applying power to the stator assembly to supply the power to the stator assembly. Rotating the rotor blades by rotating the rotor surrounding the assembly, allowing the rotational force of the rotor assembly to be transmitted to the dehydration shaft by the planetary gear and at the same time release the brake assembly from the de-shrinkage to wash the dehydration shaft washing blade Wing-laundered wings to carry out the laundry administration; The sliding coupler is moved downward so that the dehydration shaft and the washing shaft can be integrally rotated, and the brake assembly is released from the dehydration shaft to perform dehydration.

In the washing tank rotating mode, the stopper of the clutch assembly and the sliding coupler maintain a predetermined interval.

And the distance between the stopper and the sliding coupler of the clutch assembly is characterized in that 1mm to 10mm.

And a projection is formed on the top surface of the sliding coupler is characterized in that it is selectively coupled to the fastening hole formed in the stopper of the clutch assembly.

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.

Figure 3 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.

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.

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.

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.

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.

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.

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.

In addition, a rounded 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.

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.

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.

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.

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.

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.

4 shows a stator assembly 400 according to the present invention.

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.

The core 420 is configured by stacking a thin iron plate in the form of a donut. The pole 426 is integrally formed with the core 420 and is formed to extend outwardly around the outer circumferential surface of the core 420, and a coil 440 that forms a magnetic force may be wound.

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.

5 shows the inside and side cross-section of the rotor assembly 500 according to the present invention.

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.

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.

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.

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.

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.

As shown in FIGS. 6A to 6C, 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 Including a sliding coupler 650 for sliding the outer peripheral surface of the lower washing shaft 240, the stopper 660 is fastened to the projection 652 formed on the sliding coupler 650 to prevent the rotation of the lower dehydration shaft (140) It is composed.

The clutch assembly 600 is screwed and fixed to the lower portion of the lower clutch housing 300b.

6A to 6C, the connection link 630 is integrally formed with the motor connection part 630a and the motor connection part 630a connected to one side of the clutch operation motor 620, and the connection link 630. Link body portion 630b constituting the body of the body, a through-hole formed in one side of the link body portion 630b and the end is a spring fastening portion 630c hinged to the removable lever 640, the spring fastening portion ( It is configured to include a spring (630d) coupled to the outer peripheral surface of the 630c for generating elasticity. 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.

In addition, the detachable levers 640 and 640a and 640b are formed in the form of a letter N, 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.

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 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.

The sliding coupler 650 is formed in a cylindrical shape as shown in Figures 6a to 6c. The cylindrical upper portion has a surface protruding in a disk shape, and a protrusion 652 is formed at an end portion of the disk surface. The protrusion 652 is selectively inserted into a groove formed in the stopper 660.

In addition, an inner circumference of the sliding coupler 650 may be vertically moved along a male serration formed at the outer circumference of the engagement member 550a and the lower circumference of the lower dehydration shaft 140.

When the sliding coupler 650 moves downward, the sliding coupler 650 becomes a first position that is simultaneously clamped to the engagement member 550a and the lower dehydration shaft 140. When the sliding coupler 650 moves upward, the sliding coupler 650 becomes a second position clamped only to the lower dehydration shaft 140.

When the sliding coupler 650 is simultaneously engaged to the first position that moves downward, that is, the outer circumference of the coupling member 550a and the lower dehydration shaft 140, the rotational force of the motor is the washing shaft 200 and the dehydration shaft ( 100) can be delivered directly.

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 portion 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).

The operation of the clutch assembly 600 will be described with reference to FIGS. 6A and 6C. 6C shows 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. 6A illustrates a connection link 630, a detachable lever 640, a sliding coupler 650, and a stopper 660 in the second position where the sliding coupler 650 engages only the lower dehydration shaft 140.

6C to 6A, that is, the operation of sliding the sliding coupler 650 will be described.

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, the detachable lever 640 illustrated in FIGS. 6A to 6C by the movement of the link link 630 has an upper end of the lever body 640a toward the clutch operation motor 620 with the hinge hole 660c as the axis. Tilt 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.

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 peripheral surface of the lower end of the lower dehydration shaft 140 and the tooth formed on the outer peripheral surface of the engagement member 550a. Second position).

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 needs to be stopped momentarily during dehydration.

As shown in FIG. 3, 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.

The brake assembly 700 is operated by the brake motor. When the brake motor is not operated, that is, in the off state, the brake pad 780 of the brake assembly 700 is contracted to enclose and restrain the drum 160. However, when the brake motor is operated and the brake lever 720 is pressed, the brake pad 780 connected to the brake lever 720 is pulled to maintain a relaxed state in the drum 160.

Referring to Figure 6a looks at the case of the stirring washing mode in which the washing tank is fixed and washing and rinsing while the washing blade rotates only.

First, the clutch operation motor 620 operates, and the connection link 630 linearly moves toward the clutch operation motor 620. The detachable lever 640 is inclined by the linear motion of the connection link 630.

And due to the inclination, the coupler support part 640b pushes up the sliding coupler 650 upwards. As the sliding coupler 650 rises, the protrusion 652 of the sliding coupler 650 is coupled to the stopper 660. At this time, the sliding coupler 650 is moved to the position that can be engaged only in the lower dehydration shaft 140 (second position).

When the driving device is driven 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 is rotated along the rotational direction of the driving motor, and the washing and rinsing are performed. At this time, the drain motor is off and closed.

At this time, looking at the rotational force transmission process, the rotational force by 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 gear ( 220, the carrier 230, the upper washing shaft 210 is delivered. At this time, the dehydration shaft 100 is in a state in which it is impossible to rotate due to the restraint of the drum 160 by the brake pad 780 and the restraint by the sliding coupler 650.

As described above, the planetary gear 220 rotates in the opposite direction to the sun gear 242 of the lower washing shaft 240 in the state in which the drum 160 is restrained (off the brake pad) as described above. At the same time, the drum 160 revolves around the sun gear 242 in the same direction.

By the revolving of the planetary gear 220 as described above, the upper washing shaft 210 connected to the carrier 230 rotates in the same direction as the revolving of the planetary gear 220 in the upper dehydration shaft 120. The washing blade combined with the upper washing shaft 210 also rotates in the same direction as the planetary gear 220 to perform washing and rinsing.

Referring to Figure 6b looks at the case of the reverse rotation washing mode in which the washing tank and the washing wing is rotated with each other while the washing and rinsing progress.

The clutch operation motor 620 operates in the reverse rotation washing mode in the stirring washing mode, and the connection link 630 performs a linear movement at a predetermined interval toward the clutch housing 300. By the linear movement of the connecting link 630, the detachable lever 640 is inclined in a state that is uniformly reduced than the stirring mode.

By the inclination, the sliding coupler 650 mounted on the coupler support part 640b moves downward (a third position) by a predetermined distance. At this time, the predetermined distance, the protrusion 652 of the sliding coupler 650 is separated from the coupling hole 660b of the stopper 660, the interval between the upper end of the protrusion 652 and the lower end of the coupling hole 660b. This is to form a distance (about 3mm) out of reach. At this time, the sliding coupler 650 is engaged only to the lower dehydration shaft 140.

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. And the washing shaft 200 is rotated by the rotation of the rotor assembly 500, the washing blade coupled to the washing shaft 200 rotates in the rotational direction of the drive motor.

And the drum 160, which was restrained by the brake pad 780 in the stirring and washing mode, is freely rotated while the brake assembly 700 is turned on. In addition, the dehydration shaft 100 coupled to the drum 160 and the washing tank coupled with the dehydration shaft 100 are also freely rotatable.

As described above, the washing blade and the washing tank are rotated at the same time so that reverse washing and rinsing are performed. The drain motor is off and closed.

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 planetary gear 220 rotates in the opposite direction to the sun gear 242 of the lower washing shaft 240 and rotates around the drum 160 in the same direction as the sun gear 242.

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 combined with the upper washing shaft 210 also rotates in the same direction as the planetary gear 220 to perform washing and rinsing.

Then, the brake assembly 700 is turned on so that the drum 160 is released from restraint. That is, the drum 160 and the dehydration shaft 100 coupled to the upper and lower parts of the drum 160 form a rotatable state.

The drum 160 and the dewatering shaft 100 rotate in a direction opposite to the rotation direction of the rotor assembly 500 due to the revolutions associated with the rotation of the planetary gear 220. In addition, the washing tank connected to the dehydration shaft 100 also rotates in a direction opposite to the rotation direction of the rotor assembly 500.

As described above, the washing shaft 200 and the washing blade rotate in the same direction as the rotor assembly 500, and the dehydration shaft 100 and the washing tank rotate in the opposite direction to the rotor assembly 500. As a result of the rotation, the washing blade and the washing tank rotate in different directions, i.e., reverse rotation, and perform washing and rinsing.

The dehydration mode is performed when the drain valve is on, that is, the drain valve is open. As shown in FIG. 6C, the clutch operation motor 620 rotates in a direction opposite to the washing and rinsing stroke, 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.

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 sliding coupler 650 engaged with the engaging member 550a, the sliding The lower dehydration shaft 140, the drum 160, the upper dehydration shaft 120 engaged with the coupler 650 are moved to the washing tank.

The planetary gear 220 does not rotate 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.

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. In other words, by using the outer rotor-type motor solves the problem that the washing machine body lengthens as well as the eccentricity of the washing tank.

In addition, washing and rinsing are performed in the stirring mode and the reverse rotation 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.

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.

According to the present invention as described above, the outer rotor-type motor is directly connected to the lower side of the clutch has the advantage of increasing the output of the motor while preventing the eccentricity of the washing tank and the longer washing machine. In addition, the washing performance can be improved because the washing and rinsing operation is performed by rotating the washing blade and the washing tank by rotating the washing blade only with the increased output of the motor.

Claims (5)

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. ; And a brake assembly (700) for braking the rotation of the dehydration shaft (100); In washing or rinsing, the sliding coupler 650 is moved upward so that the sliding coupler 650 is completely separated from the washing shaft 200 so that the power of the rotor 510 is transmitted to the dehydration shaft 100. After the block is cut off, the power is supplied to the stator assembly 400 to rotate the rotor assembly 500 surrounding the stator assembly 400 to rotate the washing blade, wherein the dehydration shaft 100 wash blade. And washing blade agitation mode for performing the washing after fixing the deshrink with the brake assembly 700 to control the rotation in the reverse direction; In the washing blade stirring mode, the brake assembly 700 is released from the dehydration shaft 100 so that the rotational force of the rotor assembly 500 is transmitted to the dehydration shaft 100 via the planetary gear to rotate the dehydration shaft. Combination mode to execute the laundry administration by combining The sliding coupler 650 is moved downward to allow the dehydration shaft 100 and the washing shaft 200 to be integrally rotated, and release the brake assembly 700 from the dehydration shaft 100 to perform dehydration. Fully automatic washing machine having an outer rotor type BLDC motor, characterized in that to perform a dehydration mode. 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. ; And a brake assembly (700) for braking the rotation of the dehydration shaft (100); In the washing or rinsing stroke, the sliding coupler 650 is moved upwards to completely remove the sliding coupler 650 from the washing shaft to block transmission of power of the rotor assembly 500 to the dehydration shaft 100. Thereafter, power is applied to the stator assembly 400 to rotate the rotor 510 surrounding the stator assembly 400 to rotate the washing blades, and the rotational force of the rotor assembly 500 is removed by the planetary gear. Allowing the transfer to the contraction and at the same time detaching the brake assembly 700 from the dehydration shaft 100 so that the dehydration shaft 100 can carry out the washing stroke by washing the washing wing washing blade; The sliding coupler 650 is moved downward to allow the dehydration shaft 100 and the washing shaft 200 to be integrally rotated, and release the brake assembly 700 from the dehydration shaft 100 to perform dehydration. Fully automatic washing machine having an outer rotor type BLDC motor, characterized in that. [3] The outer rotor type BLDC motor according to claim 1 or 2, wherein the stopper 660 of the clutch assembly 600 and the sliding coupler 650 maintain a predetermined interval in the washing tank rotation mode. Fully automatic washing machine. The automatic washing machine according to claim 3, wherein an interval between the stopper (660) and the sliding coupler (650) of the clutch assembly (600) is 1 mm to 10 mm. According to claim 1 or 2, wherein the projection 652 is formed on the top surface of the sliding coupler 650 is selectively coupled to the fastening hole (660b) formed in the stopper 660 of the clutch assembly 600 Fully automatic washing machine provided with an outer rotor type BLDC motor.