KR20040036189A - Driving device for washing machine - Google Patents

Abstract

PURPOSE: A driving device of a fully automatic washing machine is provided to prevent the deformation of a rotor frame due to centrifugal force in a rotating process by processing one side of the rotor frame to form an embossing part. CONSTITUTION: A driving device of a fully automatic washing machine includes a drying shaft, a washing shaft, a clutch housing, a stator assembly, a rotor, a rotor frame(530), and an embossing part(M). The drying shaft is formed with a top drying shaft, a bottom drying shaft, and a drum for connecting the top drying shaft to the bottom drying shaft. The washing shaft is formed with a top washing shaft, a planetary gear for transmitting torque to the top washing shaft, and a bottom washing shaft. The clutch housing is used for covering the drying shaft. The stator assembly is formed with a core and a coil part. The rotor is located around an outer circumference of the stator assembly. The rotor frame(530) is used for fixing the rotor. The embossing part(M) is formed on a sidewall(532) and a base(534) of the rotor frame(530).

Description

Driving device for fully automatic washing machine {Driving device for washing machine}

The present invention relates to a fully automatic washing machine, and more particularly, to a driving apparatus of a washing machine that attaches a rotor to an outer circumferential surface of a stator, expands the diameters of the rotor and the stator, increases the output of the motor, and simplifies the configuration of the clutch. It is about.

In general, the automatic washing machine is a product that removes contaminants such as clothes and bedding by using friction and impact of the water flow due to the emulsification of the detergent and the rotation of the washing blade. 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. 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.

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 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.

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 the above 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).

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, so that the power is not only reduced, but the structure of the clutch and the deceleration means is very complicated, which makes it difficult to manufacture and the productivity is reduced. As it was used, the washing machine manufacturing cost rose and there was a high possibility of defects or breakdowns during manufacturing and operation.

The present invention is to solve the above problems, the first object is to obtain a strong rotational force required for washing and a high rotational speed required for dehydration.

And a second object of the present invention is to provide a driving device of a fully automatic washing machine to improve the productivity by simplifying the structure of the clutch.

In addition, a third object of the present invention is to prevent deformation caused during high speed rotation of the rotor frame.

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 showing a state in which the sliding coupler of the clutch according to the invention separated from the stopper,

Figure 6b is a perspective view showing a state in which the sliding coupler of the clutch according to the invention coupled to the stopper,

7 is a perspective view showing an embossing according to the present invention;

8A is a perspective view showing a first embodiment of embossing according to the present invention;

8b is a perspective view showing a second embodiment of embossing according to the present invention;

8c is a perspective view showing a third embodiment of embossing according to the present invention;

Figure 9 is a longitudinal sectional view schematically showing a conventional drum washing machine,

10 is a longitudinal sectional view schematically showing the driving device of FIG. 9;

* 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 512 ..... rotor core

530 ..... Rotorframe 532 ..... Sidewalls

534 ..... Base 650 ..... Sliding Coupler

700 ..... Break Assembly M ..... Embossing

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; A dehydration shaft configured to include an upper dehydration shaft and a lower dehydration shaft directly connected to the washing tank, and a drum connecting the upper and lower dehydration shafts to rotate the washing tank; The upper washing shaft coupled to the inside of the upper dehydration shaft and connected to the washing blade, located inside the drum and rotating along the inner wall surface of the drum, while reducing the number of revolutions of the motor to transfer the rotational force to the upper washing shaft A washing shaft including a planetary gear and a lower washing shaft having an upper sun gear for rotating the planetary gear; A clutch housing separated around the deshrinkage; Clutch assembly for controlling the rotation of the de-shrinkage and washing shaft; A core including a plurality of donut-shaped iron plates having a pole formed on the outer circumferential surface of the center, and a coil wound around the pole, are mounted on one side of the clutch housing to form a rotating magnetic field by an alternating current. A stator for generating; A rotor core surrounding the pole of the stator while maintaining a predetermined distance from the stator, and a plurality of iron plates having a plurality of holes formed along a circumferential surface thereof, and a metal bar bridging the magnetic flux by filling the holes of the rotor core, and the metal bar. A rotor for inducing current and generating rotational force, including upper and lower end rings connected to both ends of the upper and lower ends to form a closed circuit of the secondary current; A base having a stepper for supporting a lower end of the rotor, a cylindrical sidewall having a plurality of upper fixing parts installed to fix the upper end of the rotor, and a base having a rotor bushing connected to a lower washing shaft at a central portion of the stator. Wrapping the outer circumferential surface, and comprises a rotor frame is fixed to the rotor.

And the material of the rotor frame is an iron plate, the side wall and the base are integrally formed. Also, in order to prevent the rotor assembly, which is a combination of the rotor and the rotor frame, the end circumferential surface of the rotor frame is bent to the outside of the rotor frame. It is possible to prevent the rotor assembly from being deformed by bending the iron plate formed integrally as described above.

And, the stepped to support the lower end of the rotor is formed by reducing the diameter on the lower side of the rotor frame. The upper fixing part is formed by extending a plurality of upper portion of the rotor frame, and bent inward to fix the upper end of the upper end ring. In another embodiment, the upper fixing portion forms a slit (H) having a predetermined interval on the upper portion of the rotor frame, the upper fixing portion formed therebetween is bent inward to fix the upper portion of the upper end ring. In another embodiment, the upper fixing portion is configured to cut a portion of the middle portion of the side wall of the rotor frame and bend inward to fix the upper portion of the upper end ring. By the various upper fixing parts described above, the upper end ring of the rotor core is supported to prevent the rotor core from being detached from the rotor frame.

In addition, a core including a plurality of donut-shaped iron plates having a pole formed on the outer circumferential surface of the center, and a coil part wound around the pole, are mounted on one side of the clutch housing to be connected by an alternating current. A stator for generating a rotating magnetic field; A rotor core surrounding the pole of the stator and having a plurality of holes formed along the circumferential surface thereof, a metal bar bridging the magnetic flux by filling the hole of the rotor core, and connected to both ends of the metal bar to the secondary A rotor for inducing a current and generating a rotational force, including a top and bottom end rings for forming a closed circuit of the current; A side wall having a step for supporting the lower end of the rotor, and a rotor upper fixing part which bends and cuts the side surface of the rotor to correspond to the position of the upper end of the rotor to support the upper end of the rotor. And a base having a rotor bushing to surround the outer circumferential surface of the stator and to form a motor for a washing machine including a rotor frame to which the rotor is fixed.

And the upper and lower end ring and the metal bar is made of aluminum or copper to improve the electrical conductivity. In addition, the upper and lower end ring and the metal bar can be easily processed by die casting.

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 is coupled to the hole to support the planetary gear 220 and rotate at the same time.

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. In addition, a stopper 660 coupled to the sliding coupler 650 to be described later is screwed into the lower end of the clutch housing 300. A fastening hole 664 is formed at the lower end of the stopper 660 and is coupled to the protrusion 652 of the sliding coupler 650.

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 is an exploded perspective view of the stator assembly 400 according to the present invention.

As shown in the figure, the stator assembly 400 includes a core 420 having a plurality of iron plates stacked thereon, a coil 440 wound around a pole 426 integrally formed on an outer circumferential surface of the core 420, and the core 420. And an insulator 460 (460a, 460b, 460c) for preventing contact between the coil 440 and the coil 440.

The core 420 is formed by stacking a thin iron plate in the form of a donut. In addition, the pole 426 may be integrally formed with the core 420 to form a protrusion on the outer circumferential surface of the core 420 so that the coil 440 may be wound.

Upper and lower insulators 460a and 460b are attached to upper and lower ends of the core 420 to prevent the coil 440 from contacting the upper and lower ends of the pole 426. In addition, an inner insulator 460c formed of a synthetic resin film is inserted into the space between the pole 426 and the pole to prevent the coil 440 from being contacted.

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 an exploded perspective view of the rotor assembly 500 according to the present invention.

The rotor assembly 500 for generating the induced current and the rotation force by using the rotating magnetic field generated by the stator assembly 400 is installed on the outer surface of the stator assembly 400. The rotor assembly 500 includes a rotor 510 forming a closed circuit, and a rotor frame 530 forming the exterior of the rotor.

As illustrated in FIG. 5, the rotor 510 includes a rotor core 512 having a plurality of iron plates having a plurality of holes 513 formed thereon, and magnetic flux penetrating through the holes 513 of the rotor core 512. The upper and lower end rings 516 and 518 which are coupled to the metal bars 514 and the upper and lower ends of the metal bars 514, respectively, form a secondary shielding circuit and cover the upper and lower ends of the rotor core 512. It is configured to include.

The rotor frame 530 is assembled to the outside of the rotor 510. The rotor frame 530 forms the appearance of the rotor 510, and the rotor 510 is forcedly pressed into the rotor frame 530. The rotor frame 530 has a cylindrical shape consisting of the side wall 532 and the base 534 as shown in FIG.

A coupling hole 536 is formed at the center of the base 534, and a rotor bushing 534a coupled to the lower washing shaft 240 is coupled therethrough. The rotor bushing shaft 534b is coupled to the upper portion of the rotor bushing 534a and engages with the sliding coupler 650 to be described later.

And the side wall 532 is formed with a step 539 due to the reduction of the diameter, and supports the lower end of the rotor 510 when forcibly pressing the rotor 510 to the rotor frame 530. In order to support the upper end of the rotor 510, an upper fixing part 538 protruding one side of the rotor side wall 532 is formed.

In addition, the rotor bushing 534a is screwed into the base 534 so that the female tooth formed in the rotor bushing 534a and the numerical difference between the lower outer circumferential surface of the lower washing shaft 240 are engaged with each other.

The rotor assembly 500 for generating the induced current and the rotation force using the rotating magnetic field generated by the stator assembly 400 rotates at high speed when dewatered. At this time, the rotor frame 530 meshed with the lower washing shaft 240 is deformed by the centrifugal force during high speed rotation. In order to prevent the deformation as described above, the base 534 of the rotor frame 530 is formed with a plurality of embossing (M) by the press working.

The embossing M may be formed in various shapes, and based on FIGS. 7 and 8, the embossing M of the present invention will be described.

The embossing M1 illustrated in FIGS. 7 and 8A is formed by pressing the base 534 into the rotor frame 530. The embossing (M1) is formed in a plurality of radially in the circumferential direction in the coupling hole 536 in the center of the rotor frame 530. In addition, the embossing (M1) may have the same effect even if the press working to the outside as well as the inside of the rotor frame 530 as described above.

As another embodiment, as shown in FIG. 8B, the embossing M2 is press-pressed at a corner portion where the side wall 532 and the base 534 of the rotor frame 530 meet. As shown in the figure, the sidewalls 532 are radially pressed in a form inclined downward toward the base 534. Like the embossing M1 of FIG. 8A, the same effect may be obtained when the outer frame or the inside of the rotor frame 530 is processed.

In another embodiment, in the embossing M3 illustrated in FIG. 8C, the base 534 and the side wall 532 are pressed at the same time. The embossing M3 is radially pressed from the coupling hole 536 at the center of the rotor frame 530 to the lower end of the side wall 532. The present embodiment can also prevent the same effect, that is, distortion even if the press working to the inside or outside of the rotor frame 530.

On the other hand, the clutch assembly 600 is inserted into the rotor assembly 500 having the embossing (M) as described above to control the rotation of the dehydration shaft 100 and the washing shaft 200.

The clutch assembly 600 includes a clutch operation motor 620 for providing power of a clutch movement, a connection link 630 for converting a rotational movement of the clutch operation motor 620 into a linear movement, and the connection link 630. Sliding coupler 650 sliding the outer circumferential surface of the rotor bushing shaft 534b and the lower washing shaft 240 by the operation of the operating lever 640, the operation lever 640 selectively inclined by a linear movement of ), And a stopper 660 fastened to the protrusion 652 formed on the sliding coupler 650 to prevent rotation of the lower dehydration shaft 140. The clutch assembly 600 is screwed to and fixed to the lower portion of the lower clutch housing 300b.

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 portion is coupled to an outer circumferential surface of the spring coupling portion 630c and hinged with the operation lever 640 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.

And the operating lever 640 is hingedly connected to the connecting link 630, the end of the coupler for directly supporting the lever body portion 640a and the sliding coupler 650 is formed with a projection for coupling with the stopper 660. Support 640b.

As shown in FIG. 6, the sliding coupler 650 has a cylindrical shape with gears formed on an inner circumferential surface thereof, and a protrusion 652 fastened to the stopper 660 is formed at an upper end thereof. The sliding coupler 650 is attached to an outer circumferential surface of a portion where the upper end of the rotor bushing shaft 534b and the lower end of the lower dehydration shaft 240 contact each other. An axial serration is formed on the inner circumferential surface of the sliding coupler 650, and the rotor bushing shaft 534b and the lower dehydration shaft 240 are coupled to rotate together.

In addition, the sliding coupler 650, a first position (upper position) clamped to the rotor bushing shaft 534b and the lower dehydration shaft 240 at the same time, and a second position (lower position) clamped only to the lower dehydration shaft 240 Up and down sliding to) is possible.

The stopper 660 includes a fastening hole 660a for screwing the clutch assembly 600 to the lower clutch housing 300b and a protrusion 652 of the sliding coupler 650 formed at a side surface of the fastening hole. A coupling hole 660b coupled to the hinge, a hinge 660c coupled to the protrusion of the end of the lever body portion 640a so as to be swingable, a lever support portion 660d supporting the lever body portion 640a, and the coupler support portion 640b. It is configured to include a spring (660e) for giving elasticity during the tilting operation of the), and a spring support (660f) for supporting the spring (660e).

An operation of the clutch assembly 600 will be described with reference to FIGS. 3 and 6. 3 shows the configuration of the overall clutch assembly 600. 6A illustrates a coupling link 630, a detachable lever 640, and a sliding coupler 650 in the first position in which the sliding coupler 650 is simultaneously engaged with the lower dehydration shaft 140 and the rotor bushing 534a. And a stopper 660. 6B illustrates the connection link 630, the detachable lever 640, the sliding coupler 650, and the stopper 660 in the second position in which the sliding coupler 650 is engaged only with the lower dehydration shaft 140.

6A to 6B, a process of sliding the sliding coupler 650 to an upper portion 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 FIG. 6 is inclined entirely around the hinge 660c by the movement of the link link 630. At this time, the sliding coupler 650 positioned at the upper end of the coupler support part 640b is slid upwards (second position) so that the protrusion 652 is coupled to the coupling hole 660b of the stopper 660.

It looks at the action on the spring (630d) formed in the connection link (630). The spring 630d is inserted between one side wall of the link body portion 630b and the projection of the spring fastening portion 630c to form elasticity in the operation lever 640 to maintain a smooth operation of the sliding coupler 650. It is for. When sliding the sliding coupler 650, it is difficult for the teeth formed on the inner circumferential surface of the sliding coupler 650 and the teeth formed on the outer circumferential surfaces of the lower washing shaft 240 and the rotor bushing shaft 534b to be precisely matched with each other. Therefore, in consideration of this in the design of the washing machine is designed to rotate the motor finely to the left and right during the vertical operation of the sliding coupler 650.

As described above, the gear of the inner circumferential surface of the sliding coupler 650 may be engaged with the outer circumferential surface of the lower washing shaft 240 and the rotor bushing shaft 534b during the left and right rotation of the motor. And at this time, if the sliding coupler 650 is being forced to be slid upward with elasticity, the serration between each tooth can be made even more smoothly. The spring 630d is fastened inside the connection link 630 in order to maintain elasticity when sliding the upper coupler 650 as described above.

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.

The brake assembly 700 includes a brake lever 720 for operation, a through shaft 740 connecting the upper clutch housing 300a, the brake lever 720, and the lower clutch housing 300b to pass through the brake lever 720. It is coupled to the shaft 740, the brake spring 760 for giving elasticity of the brake lever 720, is connected to the brake lever 720, the brake pad for applying the brake of the drum (160) drum ( 780, and a brake hinge shaft 790 coupled to an end of the flake pad 780 and hinged when the brake lever 720 is pressed.

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 3 will be described the operation of washing and dehydration of the drive device.

The drive device configured as described above is operated as follows during washing. First, during washing, the operation lever 640 is inclined when the clutch operation motor 620 is operated, and the coupler support part 640b slides the sliding coupler 650 upward by the inclination. Only the gear is moved (second position) to be connected. When the motor is driven, the rotor 510 rotates around the stator assembly 400 about the lower washing shaft 240.

At this time, looking at the rotational force transmission process, the rotational force by the rotation of the rotor assembly 500, the rotor bushing 534a of the rotor frame 530, the lower washing shaft 240 coupled to the rotor bushing 534a, planetary gear 220, the carrier 230, the upper washing shaft 210 is delivered. At this time, the dehydration shaft 100 does not rotate because the lower dehydration shaft 240 is constrained by the sliding coupler 600.

Since the planetary gear 220 is constrained by the brake assembly 700 of the drum 160 of the dehydration shaft 100, the planetary gear 220 rotates in the opposite direction to the sun gear 242 of the lower washing shaft 240 and simultaneously the sun gear ( Around the drum 160 in the same direction as 242. As the planetary gear 242 revolves as described above, the upper washing shaft 210 connected to the carrier 230 rotates inside the upper dehydration shaft 120.

At the time of dehydration, the clutch operation motor 620 rotates in the opposite direction to the washing time, and the operation lever 640 is vertical, and the coupler support part 640b moves the slide coupler 650 to the lower dehydration shaft 240 and the rotor. It is moved downward to simultaneously connect (first position) to the bushing 534a. That is, the protrusion 652 of the sliding coupler 650 is separated from the fastening hole 664 of the stopper 660 and the sliding coupler 650 moves downward.

At this time, looking at the rotational force transmission process, the rotational force by the rotation of the rotor assembly 500, the rotor bushing 534a of the rotor frame 530, the lower washing shaft 240 coupled to the rotor bushing 534a, planetary gear 220, the upper washing shaft 210 is delivered. And since the sliding coupler 650 connects the rotor bushing 534a and the lower dehydration shaft 140 at the same time, the rotational force of the rotor bushing 534a is the lower dehydration shaft 140 and the drum 160 via the sliding coupler 650. ), And is delivered to the upper dehydration shaft (120). That is, the washing shaft 200 and the dehydration shaft 100 are rotated at the same speed at the same speed by the driving of the motor to perform dehydration.

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, but revolves together with the drum 160 in the same direction as the sun gear 242. do.

9 and 10, another embodiment of a washing machine driving apparatus according to the present invention will be described. The principle of this embodiment is also the same concept as the drive device of the above-described embodiment.

FIG. 9 is a longitudinal cross-sectional view illustrating main parts of a drum washing machine as another embodiment, and FIG. 10 is a longitudinal cross-sectional view schematically illustrating the drum washing machine driving device of FIG. 9.

Fig. 9 is a cross-sectional view showing the structure of the drum washing machine of the present invention, wherein the drum washing machine is rotatably installed in the outer tub 10 'and the outer tub 10' supported by the damper D and the spring S in the outer case. Cylindrical washing tank 20 ', the lower one side of the outer tank 10' is configured to include a driving device is applied to rotate the power.

The washing shaft 200 'is formed to transmit a driving force to the washing tub 20' of the drum washing machine configured as described above. As shown in FIG. 10, one end of the washing shaft 200 ′ is inserted into a spider 30 ′ formed at the rear side of the washing tub 20 ′ and the other end is fitted to the rotor bushing 534a ′. The rotational force of the driving device is transmitted to the washing shaft 200 'to rotate the washing tub 20'. As described above, the laundry is lifted by the rotation of the washing tub 20 'and the washing is performed while falling down by gravity.

In addition, the front of the drum washing machine is provided with a door (R) corresponding to the opening of the washing tank (20 '). And a gasket (G) is configured between the door (R) and the washing tank (20 '), the controller unit (C) for receiving the user's operation command and controls the operation of the entire washing machine at the top of the door (R) It is composed.

On the other hand, with reference to the longitudinal cross-sectional view of the drive device according to the invention of Figure 10 will be described in detail.

As shown in FIG. 10, a rotating device for generating a rotational force of the washing shaft 200 ′ includes a rotor assembly 500 ′ which is a rotor directly connected to the washing shaft 200 ′, and a washing tank 20 ′. It is coupled to the rear of, and comprises a stator assembly 400 'which is a stator for generating a rotating magnetic field. The rotor assembly 500 'forms a shape that surrounds the stator assembly 400' at regular intervals from the outer circumferential surface of the stator assembly 400 'coupled to the lower end of the clutch housing 300'.

The stator assembly 400 'includes a core 420' in which a plurality of steel plates are stacked, a coil 440 'wound around an outer circumferential surface of the core 420', and a core 420 'and a coil 440'. And an insulator (not shown) for preventing contact.

In addition, a rotor assembly 500 ′ for generating an induced current and a rotation force by using the rotating magnetic field generated by the stator assembly 400 ′ is positioned on an outer circumferential surface of the stator assembly 400 ′.

As described above, according to the present invention, the motor and the clutch assembly, which are the conventional washing machine power transmission structure, are separately configured, and the power is directly connected to the clutch by directly connecting the motor to the lower portion of the clutch assembly instead of connecting the belt therebetween. To pass.

The rotor assembly, which constitutes the rotor, is disposed outside the stator assembly, which is a stator, to increase the power of the motor. In addition, the technical gist of the present application forms an embossing on the rotor frame to prevent the distortion of the rotor frame generated during the high speed rotation of the rotor assembly.

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, the motor is fastened to the lower portion of the clutch, so that the transmission of the rotational force is efficient and the configuration is simple. Unlike the structure of the existing motor, the output of the motor was increased by changing the position of the rotor and stator. In addition, as an effect expected by the present invention, one side of the rotor frame can be embossed by press working, so that the advantage of preventing deformation due to centrifugal force during high speed rotation of the rotor frame can be expected.

Claims (15)

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; An upper dehydration shaft 110 and a lower dehydration shaft 120 directly connected to the washing tank, and a drum 160 for connecting the upper dehydration shaft 120 and the lower dehydration shaft 140 is configured to rotate the washing tank. Contraction 100; The upper washing shaft 210 is coupled to the inside of the upper dehydration shaft 120 and is located inside the drum 160, and is rotated along the inner wall surface of the drum 140, and rotates the number of revolutions of the motor. Washing is composed of a plurality of planetary gear 220 to reduce the rotational force to the upper washing shaft 210, the lower washing shaft 240 formed on the top of the sun gear for rotating the planetary gear 220 Axis 200; A clutch housing 300 surrounding the dewatering shaft 100 and separated up and down; A clutch assembly 600 for controlling rotation of the dehydration shaft 100 and the washing shaft 200; A core 420 including a plurality of donut-shaped iron plates having a pole formed at an outer circumferential surface thereof, and a coil 440 wound around the pole, on one side of the clutch housing 300. A stirrer 400 mounted to generate a rotating magnetic field by an alternating current; The rotor core 512 surrounding the pole 426 of the stator 400 while maintaining a predetermined distance from the stator assembly 400, and a plurality of iron plates having a plurality of holes formed along a circumferential surface thereof, and the rotor core ( A metal bar 514 filling the holes of 512 to bridge the magnetic flux, and upper and lower end rings 516 and 518 connected to both ends of the metal bar 514 to form a closed circuit of the secondary current. A rotor 510 to generate and rotate torque; It includes a side wall 532 is formed with a step (539) for supporting the lower end of the rotor 510, a base 534 having a rotor bushing (534a) for connecting to the lower washing shaft 240 in the center, Embossing is formed on one side and the rotor 510 is a drive device of a fully automatic washing machine comprising a rotor frame (530) is fixed. The method of claim 1, wherein the rotor frame 530 is made of a steel plate, the side wall 532 and the base 534, the driving device of the automatic washing machine, characterized in that formed integrally. According to claim 1, wherein the end of the rotor frame 530, the driving device of the automatic washing machine, characterized in that the bending process to the outside of the rotor frame. The driving apparatus of claim 1, wherein an embossing (M) is formed in the base 534 of the rotor frame 530 in a radial direction. According to claim 1, Embossing (M) is formed in the corner portion of the side wall 532 and the base 534 of the rotor frame 530, the driving device of the automatic washing machine. The driving apparatus of the full-automatic washing machine according to claim 1, wherein an embossing (M) process is integrally performed from the corner of the rotor frame to the base 534. 2. The apparatus of claim 1, wherein the upper and lower end rings (516, 518) and the metal bar (514) are made of aluminum or copper. The apparatus of claim 1, wherein the upper and lower end rings (516, 518) and the metal bar (514) are die cast. One side of the clutch housing 300 includes a core 420 including a plurality of donut-shaped iron plates having a pole formed at an outer circumferential surface thereof, and a coil unit 440 wound around the pole. A stator 400 mounted on the stator for generating a rotating magnetic field by an alternating current; The rotor core 512 surrounding the pole of the stirrer 400 and a plurality of iron plates having a plurality of holes formed along the circumferential surface thereof, and a metal bar filling the holes of the rotor core 512 to bridge the magnetic flux ( 514, a rotor 510 for inducing current and generating a rotational force, including upper and lower end rings 516 and 518 connected to both ends of the metal bar 514 to form a closed circuit of secondary current; Steps 539 for supporting the lower end of the rotor 510, and side surfaces of the rotor 510 are cut out to correspond to the position of the upper end ring 516 of the rotor 510 to support the upper end of the rotor 510. And a base 534 having a rotor bushing 534a for connecting to a lower washing shaft 240 at a center thereof, the sidewall 532 having a rotor upper fixing part 538 bent and the stator assembly 400. Wrapping the outer circumferential surface of the motor, the rotor 510 is configured to include a rotor frame is fixed. 10. The motor according to claim 9, wherein embossing (M) is formed in the radial direction on the base (534) of the rotor frame (530). 10. The motor according to claim 9, wherein an embossing is formed at an edge portion where the side wall 532 and the base 534 of the rotor frame 530 meet. The driving apparatus of the full-automatic washing machine according to claim 1, wherein an embossing (M) process is integrally performed from the corner of the rotor frame to the base 534. 10. The motor according to claim 9, wherein the upper and lower end rings (516, 518) and the metal bars (514) are made of aluminum or copper. 10. The motor according to claim 9, wherein the upper and lower end rings (516, 518) and the metal bar (514) are die cast. Outer tank installed horizontally lying 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 laid horizontally inside the outer tank; A washing shaft axially connected to the washing tub installed inside the outer tub through the outer tub to transfer the driving force of the motor to the washing tub; A stator assembly including a core stacked with a plurality of donut-shaped iron plates and a coil wound around an outer circumferential surface of the core, the stator assembly being mounted to the rear of the washing tank to generate a rotating magnetic field by an alternating current; A rotor core surrounding the pole of the stator while maintaining a predetermined distance from the stator assembly, and a plurality of iron plates having a plurality of holes formed along the circumferential surface thereof, and a metal bar that bridges the holes of the rotor core to bridge the magnetic flux; A rotor for inducing current and generating rotational force, including upper and lower end rings connected to both ends of the metal bar to form a closed circuit of the secondary current; And a base having a rotor bushing to be connected to a lower washing shaft at a central portion thereof, a sidewall having a stepped portion for supporting the lower end of the rotor, and having an embossing formed at one side thereof and comprising a rotor frame to which the rotor is fixed. Driving device for drum washing machine.