KR100934000B1 - Fully automatic washing machine and its motor - 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 circumferential surface of the stator assembly 400; A rotor frame 530 to which the rotor is fixed; It relates to a fully automatic washing machine comprising a fan member (W) formed on the side wall 532 of the rotor frame 530.

Fully automatic washing machine, rotor, stator, coupler, fan member

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 of a fan member according to the present invention;

       8 is a longitudinal sectional view schematically showing a drum washing machine in which the present invention is employed;

       9 is a longitudinal sectional view schematically showing the driving device of FIG. 8;

 * 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 ..... Rotorcore 534 ..... Base 650 ..... Sliding Coupler

delete

700 ..... brake assembly W ..... fan member

The present invention relates to a fully automatic washing machine, and more particularly, the rotor is installed to maintain a constant distance around the outer peripheral 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, 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, the power of the motor is transmitted to the power transmission shaft by the belt, not only the power is reduced, but also because the structure of the clutch and the deceleration means is very complicated, the production is difficult, the productivity is lowered, many precision parts 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.

A third object of the present invention is to provide an efficient fan member for cooling the stator.

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 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 cylindrical sidewall having a fan member bent in a different direction from the step and the cooling hole formed by the fan member, a base having a rotor bushing for connecting 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.

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 installed in the rotor frame surrounds the pole of the stator assembly, the rotor assembly for inducing a current and generating a rotational force; comprising a, the rotor frame has a step different from the step for supporting the lower end of the rotor And a sidewall having a bent fan member and a cooling hole formed by the fan member, and a base having a rotor bushing in a central portion thereof.

According to another feature of the invention, the present invention is laid out horizontally lying 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 wraps the pole of the stator 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 And a cylindrical sidewall having a fan member bent in a different direction from the stepped portion and a cooling hole formed by the fan member, and a base having a rotor bushing to be connected to the laundry shaft at a central portion 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.

Fig. 3 is a longitudinal sectional view of principal parts schematically showing the configuration of an embodiment of a motor 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 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 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, 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 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 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.

In addition, a stepped portion 539 is formed on the side wall 532 due to a reduction in diameter, and supports the lower end of the rotor 510 when the rotor 510 is forcedly pressed into 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.

A plurality of fan members W and cooling holes W1 are radially formed on the side wall 532 of the rotor frame 530 to cool the heat generated from the stator assembly 400. Based on Figure 7, looks at with respect to the fan member (W) and the cooling hole (W1) of the present invention.

The fan member W is formed by punching the side wall 532 of the rotor frame 530 in a U-shape and bending it inward. The fan member (W) is formed in six sets of three, two of the three is the fan member (W) is bent in the direction that rotates when the washing tank is dewatered, the other one is bent in the opposite direction.

In addition, a cooling hole W1 is formed in the sidewall 532 at which the fan member W is bent so that air flows in when the rotor frame 530 is rotated.

The fan member (W) is bent in a different direction as described above looks at the reason.

First, the side wall 532 of the rotor frame 530 is punched to form the fan member (W). At this time, when pressing only in one direction, a phenomenon in which the rotor frame 530 slides slightly in the pressing direction occurs. When the rotor frame 530 slides as described above, the position of the punching is not accurate and the dimensions of the fan member W are not precisely molded. And the rotor assembly 500 is rotated in an eccentricity by the dimension deformation of the fan member (W) to prevent this.

The second reason is that since the stator assembly 400 generates excessive heat during the dehydration stroke, a lot of external air is required to cool the heat. For this reason, there is a need for a fan member (W) to be bent in the direction of rotation during dehydration. That is, when the washing tank rotates in the clockwise direction during dehydration, the fan member W is bent in the left direction of the cooling hole W1. The external air may be directly supplied to the fan member W via the cooling hole W1 to cool the heat generated by the stator assembly 400.

In addition, when the washing assembly rotates while the rotor assembly 500 rotates left and right, the fan member W may be bent to face each other to more efficiently supply air to the fan member W. FIG.

For the two reasons as described above, it is advantageous that the fan member W is formed in different directions than is formed in only one direction. That is, the size of the fan member W is precisely molded when the side wall 532 is punched, and air can be more efficiently supplied to the fan member W when the rotor assembly 500 is rotated forward and backward.

Meanwhile, the clutch assembly 600 is inserted into the rotor assembly 500 having the fan member W 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 for sliding the outer peripheral surface of the rotor bushing shaft 534b and the lower washing shaft 240 by the operation of the operating lever 640, the operating 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 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.

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.

The sliding coupler 650 illustrated in FIG. 6 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 140 abut each other. An axial serration is formed on an inner circumferential surface of the sliding coupler 650, and the rotor bushing shaft 534b and the lower dehydration shaft 140 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 140 at the same time, and a second position (lower position) clamped only to the lower dehydration shaft 140 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 640a so as to be swingable, a lever support 660d supporting the lever body 640a, and the coupler support 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 a connection link 630, a detachable lever 640, a sliding coupler 650, and a stopper 660 in the second position in which the sliding coupler 650 is engaged only with the lower dehydration shaft 140. Serve

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 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. 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 slide upward with elasticity, the serration between each tooth can be made 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 for connecting the upper clutch housing 300a, the brake lever 720, and the lower clutch housing 300b to pass through the brake lever 720. Is coupled to the shaft 740, the brake spring 760 for giving the elasticity of the brake lever 720, the brake lever 720 is connected, the brake pad 780 for applying the braking of the drum 160, the When the brake lever 720 is pressed, the brake hinge shaft 790 is coupled to an end of the brake pad 780 and hinges.

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 to lower the dehydration shaft 140. 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. The dehydration shaft 100 does not rotate because the lower dehydration shaft 140 is constrained by the sliding coupler 650.

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 220 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 as the washing time, and the operation lever 640 is vertical, and the coupler support part 640b moves the sliding coupler 650 to the lower dehydration shaft 140 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.

Another embodiment of a washing machine according to the present invention will be described with reference to FIGS. 8 and 9. The principle of this embodiment is also the same concept as the motor of the above-described embodiment.

FIG. 8 is a longitudinal cross-sectional view illustrating main parts of a drum washing machine as another embodiment, and FIG. 9 is a longitudinal cross-sectional view schematically showing the drum washing machine driving device of FIG. 8.

Fig. 8 is a cross-sectional view showing the drum washing machine configuration of the present invention, wherein the drum washing machine is rotatably installed in the outer tub 10 'supported by the damper D and the spring S in the outer case and the outer tub 10'. Cylindrical washing tank 20 ', and installed on one side of the outer tank (10') is configured to include a drive device for rotating the power applied.

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. 9, one end of the washing shaft 200 ′ is inserted into a spider 30 ′ formed at a rear side of the washing tub 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.

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 drum washing machine according to the present invention of Figure 9 as follows.

As shown in FIG. 9, the rotating apparatus for generating the 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'. It is configured to include an insulator (not shown) to prevent 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. And the technical gist of the present application to form a fan member on the side wall of the rotor frame, the bending direction of the fan member to be different from each other, it is possible to precisely the dimensions of the fan member during the press working, the air inlet from outside the rotor frame It is to make you want.

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 cool the stator by the fan member formed on the side wall of the rotor frame. In addition, the bending direction of the fan member is different from each other, so that the dimension of the fan member can be precisely pressed during press working, and the air can be smoothly introduced from the outside of the rotor frame.

Claims (11)

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; A rotor assembly 500 installed at the rotor frame 530 to surround the pole 426 of the stator 400 while maintaining a predetermined distance from the stator assembly 400 to induce current and generate rotational force; It is configured to include, The rotor frame 530 is a cooling hole (W1) formed by the fan member (W) and the fan member (W) which are bent in different directions with the step (539) for supporting the lower end of the rotor (510) And a base (534) having a cylindrical sidewall (532) and a rotor bushing (534a) in the center thereof to be connected to the laundry shaft (200). 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. The automatic washing machine according to claim 1, wherein the end of the rotor frame (530) is bent to the outside of the rotor frame. According to claim 1, wherein the fan member (W) is characterized in that the fan member (W) bent in the direction in which the washing tank rotates during the dehydration stroke is more than the fan member (W) bent in the opposite direction to the direction. Fully automatic washing machine. 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 is a cooling hole (W1) formed by the fan member (W) and the fan member (W) which are bent in different directions with the step (539) for supporting the lower end of the rotor (510) And a base (534) having a rotor bushing (534a) at the center thereof. The motor of claim 7, wherein the fan member (W) is characterized in that the fan member (W) bent in the direction in which the washing tank rotates during dehydration operation is larger than the fan member (W) bent in the opposite direction to the direction. . delete delete 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 while maintaining a predetermined distance from the stator assembly, the rotor assembly for inducing current and generating a rotational force; The rotor frame has a cylindrical side wall having a bent fan member and a cooling hole formed by the fan member in a different direction from a step for supporting the lower end of the rotor, and a rotor bushing for connecting to the laundry shaft at a central portion thereof. Drum washing machine comprising a base having a branch.

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