KR100897401B1 - Washing machine and driving device - Google Patents

Abstract

Rotor force generating means for generating a rotational force consisting of an outer tub installed in an outer case forming an outer shape of the washing machine, a washing tank for a dehydration tank having a plurality of dehydration holes, a washing blade at the center of the lower surface of the washing tank, and a rotor and a stator. In the automatic washing machine comprising a, wherein the rotational force transmitted from the rotational force generating means to selectively rotate the washing tank and the laundry blade by a drive device installed on the lower outside of the outer tank; A dehydration shaft 100 including an upper dehydration shaft 120, a lower dehydration shaft 140, and a drum 160 connecting the upper dehydration shaft 120 and the lower dehydration shaft 140; An upper washing shaft 200, a washing shaft 200 including a planetary gear 220 and a lower washing shaft 240 for transmitting rotational force to the upper washing shaft 200 by reducing the rotation speed; A clutch housing 300 surrounding the dewatering shaft 100; A stator assembly 400 including a core 420 and a coil unit 440; A rotor 510 rotating around an outer surface of the stator assembly 400; A rotor frame 538 to which the rotor is fixed; It relates to a fully automatic washing machine comprising an upper fixing portion 583 formed on the upper side of the side wall 532 of the rotor frame 530.

Fully automatic washing machine, rotor, stator, upper fixing part

Description

Fully automatic washing machine and its motor {Washing machine and driving device}

       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 motor 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 upper fixing part of the rotor frame according to the present invention;

       8A is a perspective view showing a first embodiment of an upper fixing part according to the present invention;

       8b is a perspective view showing a second embodiment of an upper fixing part according to the present invention;

       8c is a perspective view showing a third embodiment of an upper fixing part according to the present invention;

       Figure 9 is a longitudinal sectional view schematically showing a drum washing machine employing the present invention,

       10 is a longitudinal sectional view schematically showing the motor of FIG.

 * 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

delete

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

The present invention relates to a fully automatic washing machine, and more particularly, so that the rotor is positioned at regular intervals around the outer circumferential surface of the stator, and the diameter of the rotor and the stator is enlarged to increase the output of the motor as well as simplify the configuration of the clutch. It relates to a drive of the washing machine.

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 and automatically sets the washing method, and supplies the water to the appropriate level according to the amount and type of the 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 actuating lever 46 and an actuating cam 42 is installed on 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. And by the strong connection force of the drum 56 and the planetary gear 52 can be rotated integrally.

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.

The third purpose is to maintain a stable coupling of the washing machine rotor.

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 washing tub rotatably installed in the outer tub; Washing wings rotatably installed on the inner lower surface of the washing tank; A dewatering contract for directly rotating the washing tub in direct connection with the washing tub; A washing shaft connected to the washing blade to rotate the washing blade; A clutch housing surrounding the deshrinkable shaft; Clutch assembly for controlling the rotation of the de-shrinkage and washing shaft; A stator assembly including a core having a pole formed around an outer circumferential surface thereof, and a coil wound around the pole, the stator assembly mounted on one side of the clutch housing to generate a rotating magnetic field by application of current; The rotor installed in the rotor frame wraps the pole of the stator assembly while maintaining a constant distance from the stator assembly, a rotor assembly for inducing current and generating a rotational force; and the rotor frame is configured to support the lower end of the rotor It comprises a stepped, a cylindrical side wall having a plurality of upper fixing parts installed to fix the upper end of the rotor and a base having a rotor bushing to be connected to the laundry shaft in the center.

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.

According to another feature of the invention, the present invention includes a stator assembly for generating a rotating magnetic field by the application of a current, including a core wound around the outer surface and a coil portion wound around the pole; The rotor is installed on the rotor frame wraps the pole of the stator assembly, the rotor assembly for inducing current and generating a rotational force; comprising a step, for supporting the lower end of the rotor, and the upper end of the rotor It includes a side wall having a rotor upper fixing portion that is bent by bending the side portion of the rotor corresponding to the position of the rotor to support the, and a base having a rotor bushing in the center.

According to another feature of the invention, the present invention is laid out horizontally in the outer case forming the outer shape of the washing machine; A washing tub rotatably laid horizontally inside the outer tub; 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 and a coil wound around an outer circumferential surface of the core, the stator assembly mounted on the washing tank to generate a rotating magnetic field by application of a current; The rotor installed in the rotor frame surrounds the pole of the stator assembly while maintaining a constant distance from the stator assembly, a rotor assembly for inducing current and generating rotational force; and the rotor frame supports the lower end of the rotor And 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 the washing shaft at the center thereof.

Hereinafter, an embodiment of a fully automatic washing machine and a motor 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 motor of a washing machine according to the present invention. An outer tank for storing the washing water is installed inside the outer case forming the outer shape of the washing machine. 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 peripheral 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 peripheral protrusion 211 is formed 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 dewatering, 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 washing shaft 240 and the lower dehydration shaft 140 to support the lower washing shaft 240 to rotate smoothly. 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, fastening holes 424 are formed in the plurality of fastening protrusions 422 protruding from the center of the core 420 to the inner circumferential surface, such that the stator assembly 400 may be screwed 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 using the rotating magnetic field generated by the stator assembly 400 is installed to surround the edge 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 end ring 516 is coupled to the metal bar 514, the upper and lower ends of the metal bar 514, and forms a secondary shielding circuit, and covers the upper and lower ends of the rotor core 512. And a lower end ring 518.

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 upper fixing part 538 is formed to fix the upper end of the rotor 510 press-fitted into the rotor frame 530, for the above purpose, it can form various types of upper fixing part 538. . 7, the upper fixing section 538 of the present invention will be described.

7 and 8a, the upper fixing part 538a protrudes from an end of the rotor frame 530. That is, the upper fixing part 538a having a predetermined length and width is formed on the upper end of the rotor frame 530. The upper fixing part 538a is bent into the rotor frame 530 and the upper part of the rotor 510 is fixed to fix the rotor 510 that is press-fitted into the rotor frame 530.

As another embodiment, as shown in FIG. 8B, slits H having a predetermined interval are formed on the upper surface of the rotor frame 530 to form the upper fixing part 538b at the end of the rotor frame 530. And the upper fixing part 538b is formed between the slit (H).

The upper fixing part 538b press-fits the rotor 510 to the lower end of the upper fixing part 538b formed in the rotor frame 530, and then bends the upper fixing part 538b inward and the upper end of the rotor 510. To be fixed.

As another embodiment, the upper fixing part 538c illustrated in FIG. 8C is applied to the rotor frame 530 having the upper end bent. When the upper end is bent as described above, the upper end of the rotor frame 530 cannot be bent inward, so that one side of the rotor frame 530 is cut into, for example, a wedge shape. That is, a portion of the side of the rotor frame 530 is cut so that protrusions are formed in the rotor frame 530, and the fixing piece formed by the cutout is bent inward.

The rotor 510 is press-fitted to the lower end of the protrusion formed on the rotor frame 530, and then the upper fixing part 538c is bent inward and the upper end of the rotor 510 is fixed.

Meanwhile, the clutch assembly 600 is inserted into the rotor assembly 500 having the upper fixing part 538 to control the rotation of the dehydration shaft 100 and the washing shaft 200.

As shown in FIGS. 3, 6A and 6B, the clutch assembly 600 includes a clutch operation motor 620 that provides power of a clutch movement, and a rotational movement of the clutch operation motor 620 in a linear movement. The connecting link 630 for switching, the detachable lever 640 which is selectively inclined by the linear movement of the connecting link 630, the rotor bushing shaft is placed on top of the coupler support portion 640b of the detachable lever 640 The stopper 660 which is coupled to the sliding coupler 650 sliding the outer peripheral surface of the lower washing shaft 240 and the protrusion 652 formed on the sliding coupler 650 to prevent rotation of the lower dehydration shaft 140. It is configured to include).

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

6A and 6B, 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. Link body portion 630b constituting the body of 630, a spring fastening portion 630c penetrated through a hole formed in one side of the link body portion 630b and the end is hinged to the detachable lever 640, the spring fastening It is configured to include a spring (630d) coupled to the outer peripheral surface of the portion (630c) for generating elasticity. An end of the spring fastening portion 630c penetrating through 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 portion 640b is bent from the lever body portion 640a and extends into two branches. The sliding coupler 650 is stably placed on top of the two branched branches. A protrusion (not shown) for supporting the spring 660e of the stopper 660, which will be described later, is formed at one side of the coupler support part 640b.

The sliding coupler 650 has a cylindrical shape having a serration 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 has a first position (lower position) clamped to the rotor bushing shaft 534b and the lower dehydration shaft 240 at the same time, and a second position (upper position) that is 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. ) Is coupled to the coupling hole 660b, the hinge hole 660c rotatably coupled to the end of the lever body portion 640a, the lever support portion 660d for supporting the lever body portion 640a, the coupler support portion ( A spring 660e for giving elasticity during the tilting operation of the 640b, 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, 6A, and 6B. 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 shown in FIG. 6 is inclined toward the clutch operation motor 620 by the axis of the hinge hole 660c by the movement of the link link 630. 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 circumferential surface of the lower dehydration shaft and the gear formed on the outer circumferential surface of the rotor bushing shaft 534b. )do. The protrusion 652 formed on the sliding coupler 650 by the sliding is engaged with 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 630b and the protrusion of the spring fastening part 630c to form elasticity in the detachable lever 640 to maintain a smooth operation of the sliding coupler 650. It is for. When the sliding coupler 650 slides up and down, 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 surface of the lower washing shaft 240 and the rotor bushing shaft 534b to meet each other accurately. So, in the design of the washing machine in consideration of this, the sliding coupler 650 is designed to finely rotate the motor to the left and right during the vertical operation.

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 receiving the force to be slid upward with elasticity, it may be more smoothly engaged between each tooth. 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.

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

The drive device configured as described above is operated as follows during washing. First, during washing, the detachable lever 640 is inclined when the clutch operation motor 620 is operated. In addition, the coupler support part 640b is slid to the upper by the sliding coupler 650, so that the coupler support part 640b can be engaged only with the lower dehydration shaft 240 (second position). 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, since the lower dehydration shaft 140 is restrained by the sliding coupler 650, the dehydration shaft 100 does not rotate.

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 detachable 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 is lowered by its own weight.

At this time, the rotational force transmission process, the rotational force of the rotor assembly 500, the rotor bushing 534a, the lower washing shaft 240, the planetary gear 220, the upper washing shaft 210 of the rotor frame 530. Delivered. In addition, the sliding coupler 650 simultaneously engages the rotor bushing 534a and the lower dehydration shaft 140 to adjust the rotational force of the rotor bushing 534a to the lower dehydration shaft 140, the drum 160, and the upper dehydration shaft 120. Is passed to. 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 a drum washing machine according to the present invention, in which the drum 10 'and the outer tank 10' supported by the damper D and the spring S in the outer case 1 '. Cylindrical washing tub 20 ′ rotatably installed in the inside, and installed on one side of the outer tub 10 ′, and configured to include a driving device that is rotated by receiving 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 tank 20 ′ and the other end is engaged with 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.

And, the front of the drum washing machine is provided with a door (R) for opening and closing the opening of the washing tank (20 '). And a gasket (G) is installed 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 in the upper portion of the door (R) Is formed.                     

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 surrounding 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 ′.

The configuration of the rotor assembly 500 'and the stator assembly 600' itself applied to the drum washing machine as described above is substantially the same as the above-described embodiment.

As described above, according to the present invention, the motor and the clutch assembly, which are conventional washing machine power transmission structures, 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 belts between them. To pass.

The rotor assembly, which constitutes the rotor, is disposed outside the stator assembly, which is the stator, to increase the power of the motor. And it can be seen that the technical gist of the present application relates to supporting the upper end of the rotor with a fixing means, in order to fix the rotor pressed into the rotor frame.

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, the effect expected by the present invention can be fixed by the fixing portion formed at the end of the rotor frame, it is possible to more securely fix the rotor pressed into the rotor frame. In addition, even when the rotor frame is bent, it is possible to expect an advantage of fixing the rotor by forming a fixing part.

Claims (18)

An outer tub installed in an outer case forming an outer appearance of the washing machine; A washing tub rotatably installed in the outer tub; Washing wings rotatably installed on the inner lower surface of the washing tank; Directly connected to the washing tank dehydration for rotating the washing tank 100; A washing shaft 200 connected to the washing blade to rotate the washing blade; A clutch housing 300 surrounding the dewatering shaft 100; A clutch assembly 600 for controlling rotation of the dehydration shaft 100 and the washing shaft 200; A core 420 having a pole formed around an outer circumferential surface thereof and a coil 440 wound around the pole are mounted on one side of the clutch housing 300 to generate a rotating magnetic field by applying an electric current. A stator assembly 400 for; The rotor 510 installed in the rotor frame 530 surrounds the pole 426 of the stator assembly 400 while maintaining a predetermined distance from the stator assembly 400, and induces a current and generates a rotation force. Including; The rotor frame 530 has a cylindrical sidewall 532 having a step 539 for supporting the lower end of the rotor 510, and a plurality of upper fixing parts 538 installed to fix the upper end of the rotor 510. Fully automatic washing machine comprising a base 534 having a rotor bushing (534a) to be connected to the laundry shaft 200 in the center. The fully automatic washing machine according to claim 1, wherein the rotor frame (530) is made of an iron plate, and the side walls (532) and the base (534) are integrally formed. delete The fully automatic washing machine according to claim 1, wherein the step (539) for supporting the lower end of the rotor (510) is formed with a reduced diameter at the lower side of the rotor frame (530). According to claim 1, wherein the upper fixing part 538 is formed by extending a plurality of the upper portion of the rotor frame 530, the inner side to fix the upper portion of the upper end ring 516 provided on the upper end of the rotor 510 Fully automatic washing machine characterized in that the bending. According to claim 1, wherein the upper fixing portion 538 forms a slit (H) having a predetermined interval on the upper portion of the rotor frame 530, the upper fixing portion 538b formed between the rotor 510 Fully automatic washing machine, characterized in that bent inward to fix the top of the upper end ring (516) provided at the top. The upper fixing part 538 cuts a part of the side wall of the rotor frame 530 and bends inward to fix the upper end of the upper end ring 516 provided at the upper end of the rotor 510. Fully automatic washing machine, characterized in that forming the upper fixing part (538c). delete delete delete A stator assembly 400 including a core 420 having a pole formed around an outer circumferential surface thereof, and a coil unit 440 wound around the pole to generate a rotating magnetic field by application of current; The rotor 510 installed in the rotor frame 530 surrounds the poles of the stator assembly 400, and includes a rotor assembly 500 for inducing current and generating rotational force. The rotor frame 530 has a stepped portion 539 for supporting the lower end of the rotor 510 and a side portion of the rotor 510 corresponding to the position of the rotor 510 for supporting the upper end of the rotor 510. A motor comprising a side wall (532) having a rotor upper fixing part (538) bent and bent, and a base (534) having a rotor bushing (534a) at the center thereof. delete delete delete 12. The method of claim 11, wherein the upper fixing part 538 is formed to extend a plurality of the upper portion of the rotor frame 530, the inner side to fix the upper end of the upper end ring 516 provided on the upper end of the rotor 510 The motor, characterized in that the bent. The method of claim 11, wherein the upper fixing part 538 forms a slit (H) having a predetermined interval on the upper portion of the rotor frame 530, the upper fixing part 538b is formed between the rotor 510 The motor, which is bent inward to fix the top of the upper end ring (516) provided at the top of the. 12. The upper part of the upper end ring 516 of claim 11, wherein the upper fixing part 538 cuts a part of the middle portion of the side wall of the rotor frame 530 and bends inward. The motor, characterized in that for configuring the upper fixing portion (538c) to fix. Outer tank installed horizontally lying in the outer case forming the outer appearance of the washing machine; A washing tub rotatably laid horizontally inside the outer tub; 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 and a coil wound around an outer circumferential surface of the core, the stator assembly mounted on the washing tank to generate a rotating magnetic field by application of a current; The rotor installed in the rotor frame wraps the pole of the stator assembly while maintaining a constant distance from the stator assembly, the rotor assembly for inducing current and generating a rotational force; The rotor frame includes a step 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 the washing shaft at a center thereof. Drum washing machine composed.

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