KR100361363B1 - Drive device of full automatic washing machine - Google Patents

Abstract

PURPOSE: A drive device of a full automatic washing machine is provided to simplify the structure thereof by using a power transmitting part smoothly performing washing processes without a rotation preventing device of a dewatering bin, to optionally transmit power in washing and dehydrating by a plurality of spaces and projections installed to a drive shaft, accordingly a power source for converting washing and dehydrating modes being unnecessary, and to increase washing effects by being capable of washing a pollutant having strong adhesive force because a section of which the relative velocity of a rotor and the dewatering bin becomes greater exists, namely, a motor and the dewatering bin rotate in an opposite direction. CONSTITUTION: A drive device of a full automatic washing machine is composed of a drive shaft projection(D0) insertion-fixed to one side of the middle of a drive shaft(100); a first space(S1) formed with a first inner protruded part in one side to rotate around the drive shaft by being transmitted by the rotary power of the drive shaft projection while engaging with the drive shaft projection; a first projection(D1) inserted into the first inner protruded part of the first space; a second space(S2) formed with a second inner protruded part in one side to rotate around the first space by being transmitted by the rotary power of the first space with engaging with the first projection; a second projection(D2) inserted into the second inner protruded part of the second space; a third space(S3) having a third inner protruded part in one side to rotate around the second space by being delivered by the rotary power of the second space in engaging with the second projection; a third projection(D3) formed at the upside of the third space to transmit the rotary power of the third space to a fourth projection(D4) while engaging with the fourth projection installed at the lower side of a dewatering bin; and the fourth projection making the dewatering bin rotate in one direction with dehydrating the laundry by being transmitted by the rotary power of the third space in engaging with the third projection.

Description

Drive of fully automatic washing machine

The present invention relates to a fully automatic washing machine, and in particular, a washing and drying dehydration tank is rotatably supported on a motor shaft fixed to the outer tub, and a rotor is mounted on an upper portion of the motor shaft and simultaneously detects the speed of the motor and the rotation speed of the dehydration tank. When the motor rotates within a certain angle, only the rotor rotates to perform the washing process, and when the motor continues to rotate over a certain angle in one direction, the rotor and the dehydrating tank rotate simultaneously to drive a fully automatic washing machine to perform a dehydration stroke. Relates to a device.

The configuration of a conventional fully automatic washing machine will be described with reference to FIGS. 1 and 2 as follows.

First, referring to Figure 1, the outer tank (1) containing the wash water, rotatably installed in the interior of the outer tank 1, the dehydration shaft of the clutch (4) installed on the center bottom of the outer tank (1) 5) and a rotor which is installed on the inner bottom of the dehydration tank (2) and fastened to the washing shaft (6) of the clutch (4) installed on the center bottom of the outer tank (1). (3), a clutch (4) provided at the center bottom of the outer tub (1), a dehydration shaft (5) which is located on the upper part of the clutch (4) and rotates during dehydration, and an upper part of the clutch (4). Located in the washing shaft (6) that rotates during washing and dehydration, the motor (7) installed on the side of the outer tub (1), the motor (7) and the clutch 4 by connecting the motor (7) It is composed of a V-belch pulley (8) for transmitting the power of the clutch (4).

And, referring to Figure 2, the clutch 4 is a gear shaft (9) receiving the power of the motor (7) from the V-belt pulley (8), a spring fastened to the lower portion of the gear shaft (9) Block 10, a gear housing 11 acting as a brake drum, a lower dehydration shaft 12 integral with the dewatering shaft 5 and the gear housing 11, and an outer circumferential surface of the lower dewatering shaft 12 It is coupled to the clutch spring 13 and the outer peripheral surface of the clutch spring 13, which is provided on the clutch spring 13 to be transmitted only during dehydration, and not delivered to the dehydration shaft 5 when washing the rotary drive rig of the motor (7), Brake lever 15 interlocked with a toothed clutch boss 14, a clutch boss tooth 14A formed on an outer circumferential surface of the clutch boss 14, and a solenoid for operating a drain valve provided in the shaft portion of the outer tub 1; ) And the clutch boss top are rotatably installed at the lower end of the brake lever 15. The clutch boss cam 16 caught on the teeth 14A, the spring clutch 17 for preventing the reverse rotation of the dehydration tank 2, and the power of the gear shaft 9 during washing are applied to the washing shaft 6 It consists of a planetary gear 111 for decelerating transmission to the brake band 19 surrounding the outer circumferential surface of the gear housing 11.

The operation of the conventional fully automatic washing machine will be described with reference to FIGS. 1 and 2 as follows.

In general, the driving operation of the fully automatic washing machine includes a washing mode in which the dehydration tank 2 is stopped and the laundry is washed by left and right stirring of the rotor 3, the dehydration tank 2 and The rotor 3 is divided into a dehydration mode in which the high speed rotates at the same speed. The operation at this time will be described in detail as follows.

First, the washing mode will be described. Since the forward rotational power of the motor 7 transmitted to the clutch 4 by the V-belt pulley 8 is the direction in which the spring clutch 17 is wound, the spring block 10 The clutch boss cam 16 pushes the clutch boss teeth 14A of the clutch boss 14 installed on the outer circumferential surface of the spring clutch 17, but the clutch boss cam 16 is to be transferred to the lower dehydration shaft 12. It prevents the winding to prevent power transmission to the deshrinkage (5).

Therefore, the rotational force transmitted to the gear shaft 9 is decelerated through the planetary gear 18 and rotates and washes the rotor 3 fastened to the washing shaft 6.

In addition, since the reverse rotational power of the motor 7 is a direction in which the spring clutch 17 is released, the rotational power of the gear shaft 9 cannot be transmitted to the dewatering shaft 5 even at this time. It is decelerated through the washing shaft (6) by rotating the rotor (3) fastened to the washing shaft (6) to wash.

In addition, when the power is decelerated through the planetary gear 18, a reaction rotation torque is generated in the gear housing 11, and the reverse rotation of the dewatering shaft 5 by the reaction rotation torque is a spring clutch for preventing reverse rotation. 17) and brake band 19 are reliably regulated.

Next, the dehydration mode will be described.

Since the rotational power of the motor 7 transmitted to the clutch 4 by the V-belt pulley 8 always rotates in the forward direction, the spring clutch 17 is operated in the winding direction to turn the solenoid on. .

As described above, the lever 20 is pulled by the ON operation of the solenoid so that the spring clutch 17 and the spring block 10 are in close contact with each other.

On the other hand, the operation of the spring clutch 17 releases the clutch boss cam 16 of the brake lever 15 interlocked with the lever 20 from the clutch boss teeth 14A, and at the same time, the brake band 19 is geared. By deviating from the outer circumferential surface of the housing 11, the rotational power of the spring block 10 is transmitted to the lower side of the gear housing 11 to rotate the gear housing 11 and the dewatering shaft 5 at high speed without deceleration.

Accordingly, the laundry shaft 6 and the dehydration shaft 5 are rotated at high speed in one direction to dehydrate the laundry.

After the operation, when dehydration is completed or the dehydration process is forcibly stopped during dewatering, when the drain valve operation solenoid is turned off to release the brake lever 15, the clutch boss cam 16 is a clutch boss. While being caught between the clutch boss teeth 14A of 14, the brake band 19 presses the outer circumferential surface of the gear housing 11 to switch to the washing mode to stop the rotation of the gear housing 11. .

Therefore, the dehydration tank 2 fastened through the gear housing 11 and the dehydration shaft 5 is also stopped. That is, the conventional fully automatic washing machine has a structure in which the motor 7 and the clutch 4 are separately installed and the power of the motor 7 is transmitted to the clutch 4 through the V-belt pulley 8. This complex, and the structure of the clutch (4) that functions to selectively control the rotational power during washing and dehydration and the intermittent function is not only very complicated, but also the power is lost when the rotational power transmission by the V-belt pulley (8) There is a problem.

Therefore, the present invention is a structurally simple, because the washing stroke can be performed smoothly without the dehydration tank rotation prevention means for preventing the rotation of the dehydration tank in order to solve the above problems, the laundry and as a plurality of spaces and protrusions installed on the drive shaft Since power can be selectively transferred during dehydration, a separate power source is not required according to the conversion to washing and dehydration modes.In washing, the motor and the dewatering tank rotate in opposite directions, that is, a section with a large relative speed between the rotor and the dewatering tank. The present invention is intended to provide a driving device of a fully automatic washing machine, which improves the washing effect, since washing of contaminants with high adhesion in washing becomes possible.

1 is a view showing the overall configuration of a conventional fully automatic washing machine.

2 is a view showing in detail a clutch of a conventional fully automatic washing machine.

3 is a view showing the overall configuration of a fully automatic washing machine of the present invention.

Figure 4 is a view showing in detail the drive of the automatic washing machine of the present invention.

5 (a) is a view showing in detail a plan view of the power transmission unit of the automatic washing machine of the present invention, (b) is a view showing in detail a front view of the power transmission unit of the automatic washing machine of the present invention.

6 is a view showing a driving pattern of a motor during washing of a conventional fully automatic washing machine.

7 is a view showing a rotation pattern of the rotation of the motor and the dehydration tank during washing of the fully automatic washing machine of the present invention.

Explanation of symbols on the main parts of the drawings

1. Outer tank 2. Dewatering tank 3. Rotor 7. Motor

100. Drive shaft 101. Power transmission unit 102. Rotation sensing unit

104. Sliding bearing 105. Ball bearing D0. Drive shaft turning

D1. 1st projection D2. 2nd projection D3. 3rd projection D4. 4th turning

S1. First space S2. Second space S3. Third space

S1a. First space inner protrusion S2a. Second space inner protrusion

S3a. Third space inner protrusion

The configuration of the present invention for achieving the above object will be described with reference to FIGS. 3, 4 and 5 (a) (b) as follows.

The automatic washing machine driving device of the present invention, as shown in (a) (b) of FIGS. 3 to 5, a sliding bearing 104 for supporting the dewatering tank 2 so as to be freely rotatable, and an outer tub 1. Multiple spaces (S1) (S2) (S3) and protrusions in the center of the drive shaft (100) fixed and supported by the ball bearing (105) which supports the drive shaft (100) to be smoothly rotated by the rotation of the motor (7). (D0 ((D1) (D2) (D3) (D4) is a structure in which the power transmission unit 101 is formed. The configuration of the power transmission unit 101 will be described in detail as follows.

The power transmission unit 101 formed in the center of the drive shaft 100, as shown in (a) of Figs. 4 to 5, the drive shaft projection (D0) is inserted and fixed to one side of the middle of the drive shaft 100 ) And a first space S1 having an inner protrusion S1a formed at one side of the space to rotate around the drive shaft 100 by receiving the rotational force of the drive shaft protrusion D0 in engagement with the drive shaft protrusion D0. The first protrusion D1 inserted into the inner protrusion S1a of the first space S1 and the first protrusion D1 mesh with the first protrusion D1 to receive the rotational force of the first space S1. A second space S2 having an inner protrusion S2a formed at one side of the space to rotate around the space S1, and a second protrusion D2 inserted into the inner protrusion S2a of the second space S2. And the rotational force of the second space S2 in engagement with the second protrusion D2, 2 The third space (S3) formed with an inner protrusion (S3a) on one side inside the space to rotate around the space (S2), and the third space (S3) formed on the upper end of the dehydrating tank (2) A third protrusion D3 which meshes with the fourth protrusion D4 to transmit the rotational force of the third space S3 to the fourth protrusion D4, and meshes with the third protrusion D3 to engage with the third space D3. Receiving the rotational force of (S3) is composed of a fourth projection (D4) for dewatering the laundry while the dehydration tank (2) rotates in one direction.

Among the installed protrusions (D0) (D1) ((D2) ((D3) ((D4), the drive shaft protrusions (D0), the first protrusions (D1), and the second protrusions (D2) are each space ( S1) (S2) and (S3) outside the structure to press-in, each projection (D0) ((D1) (outer side of (D2) and inner protrusions (S1) (S2) (S3) of the inner projection (S1a) (S2a) (S3a) is configured to be coupled to transfer the rotational force, the plurality of spaces (S1) (S2) (S3) are each configured to be independently rotatable.

In addition, the automatic washing machine configured by applying the washing machine driving apparatus of the present invention configured as described above is provided with an outer tub 1 containing wash water and coaxially installed inside the outer tub 1, and having a plurality of holes in the circumferential surface thereof. Is formed and is located in the dehydration tank 2 which washes and dehydrates laundry, and is located in the upper part of the drive shaft 100 (lower inner center of the dehydration tank 2). The rotor 3 and the lower center of the outer tub 1 are supported by a bearing, and penetrate the lower center of the dehydrating tank 2 so that the dehydrating tank 2 and the rotor 3 are rotatable. A drive shaft 100, a motor 7 positioned below the drive shaft 100 and serving as a driving source for washing and dehydration, and a central portion of the drive shaft 100 (the lower center of the dehydration tank 2 and the outer tank 1). Located between the inner bottom of the), the power transmission unit 101 is formed with a plurality of spaces and protrusions Located in the lower portion of the dehydration tank (2) is installed so as not to be immersed in the rib 103 forming the air chamber (AIR CHAMBER) smoothly without being affected by foreign matters such as mixed in the wash water, etc. It consists of a rotation detecting unit 102 to detect the rotation to properly drive the motor 7 according to the rotation state of the dehydration tank (2) during washing.

Hereinafter, the operation of the present invention will be described in the washing mode and dehydration mode of the automatic washing machine to which the present invention is applied as described above.

First, the washing mode of the washing machine to which the present invention is applied will be described in contrast with FIGS. 4 and 5 (a) (b) as follows.

When the motor 7 of the fully automatic washing machine is driven, while the drive shaft 100 directly connected to the motor 7 rotates, the rotor 3 directly connected to the other end of the drive shaft 100 rotates to perform a washing stroke. Done. At this time, the power transmission unit 101 is installed in the middle portion of the drive shaft 100, and transmits the rotational force of the drive shaft 100 to the dehydration tank (2), at this time inserted and fixed to one side of the drive shaft 100 The drive shaft protrusion D0 rotates by a predetermined angle according to the rotation of the drive shaft 100, and the drive shaft protrusion D0 rotated by a predetermined angle as described above has a first protrusion inside the first space S1. D1) is engaged with the inserted and fixed inner protrusion S1a so that the rotational force of the drive shaft 100 is transmitted to the first space S1 so that the space S1 rotates around the drive shaft 100.

As described above, when the first space S1 is rotated by a drive shaft protrusion D0 or more by a predetermined angle, the inner space S1a of the first space S1 is similar to the rotation process of the first space S1. The fixed first protrusion D1 and the inner protrusion S2a of the second space S2 are engaged with each other, so that the rotational force of the first space S1 is transmitted to the first space S2 so that the space S2 is the first protrusion. As described above, the rotation of the third space S3 is also rotated around the first space S1, and the second protrusion D2 and the second protrusion D2 fixed to the inner protrusion S2a of the second space S2 are formed. As the inner protrusions S3a of the three spaces S3 rotate in engagement with each other, the rotational force of the second space S2 is transmitted to the third space S3 so that the space S3 surrounds the second space S2. Will rotate.

In addition, as described above, when the third space S3 rotates around the second space S2, the third protrusion D3 formed at one upper end of the third space S3 rotates at a predetermined angle, so that the dehydration tank ( 2) As the rotational force generated from the driving shaft 100 is engaged with the fourth protrusion D4 installed at the lower portion, the protrusions D0 ((D1) (D2) ((D3) ((D4) and the spaces) (S1) (S2) (S3) is finally transferred to the dehydration tank (2) by the interaction of the interaction is to rotate in one direction

However, during washing, the dehydration tank 2 does not rotate, and since only the rotor 3 rotates by a predetermined angle with left and right stirring, washing is performed so that the rotational force of the drive shaft 100 is the dehydration tank 2. After the driving of the motor 7 is stopped before being transmitted to the rotating direction, the rotational force of the driving shaft 100 is not transmitted to the dehydration tank 2 so that the driving pattern of the motor 7 is washed. It will be described in detail as follows.

First, when the washing stroke is started, it is not possible to know in what state the spaces S1, S2, and S3 of the power transmission unit 101 need to initialize the washing stroke.

Initialization operation as described above, the motor 7 immediately before the start of washing continues to rotate in one direction at a very low speed so that the spaces (S1) (S2) (S3) are in close contact with one direction completely to the rotational force of the drive shaft 100 It is a series of processes to rotate to a state that can be delivered to the dehydration tank (2), the success of the process spaces (S1) (at the rotational speed of the dehydration tank (2) detected by the rotation detecting unit 102 ( It is determined whether S2) S3 is completely in contact.

When the driving state of the power transmission unit 101 is determined through the initialization process, the washing operation is performed in earnest while rotating the motor 7 in the opposite direction rotated during the initialization process. ) Always detects the rotational speed of the motor 7 and the rotational speed of the dehydration tank 2 to determine the difference between the rotational speeds of the rotor 3 and the dehydration tank 2 (S1) of the power transmission unit 101. The second projection D2 fixed to the inner protrusion S2a of the second space S2 and the inner protrusion S3a of the third space S3 are not in close contact with each other (S2) and S3. The motor 7 is formed by stirring left and right in a state before engagement with each other.

The rotation speed of the rotor 3 in the washing stroke described above is the rotor 3 in the case where the dehydration tank 2 is stopped and only the rotor 3 is rotated in the conventional fully automatic washing machine shown in FIG. 6. Unlike the speed pattern, as shown in FIG. 7 due to friction of laundry and laundry liquid due to the rotation of the rotor 3, the dehydration tank 2 also receives a rotational force in the rotational direction of the rotor 3. At this time, if the rotational speed of the dehydration tank 2 reaches a predetermined level or more, the motor 7 is stopped, and then the motor 7 is rotated again to continue to rotate with inertia force. The former (3) is rotated in the opposite direction, and when the process is repeated, there is a section with a large relative speed between the rotor (3) and the dehydration tank (2), washing the dehydration tank (2) Even without a separate device to prevent the rotation of the same motor (1) can achieve excellent washing effect at the rotation speed.

On the other hand, the dehydration mode is rotated at a low speed in the dehydration rotation direction immediately before the drainage or immediately before the dehydration after the washing administration of the yileen so that the respective spaces (S1) (S2) (S3) in close contact with the one direction After the rotational force of the drive shaft 100 is formed to be transmitted to the dehydration tank 2, the dehydration stroke is performed by rotating the motor 7 at a high speed as in a general dehydration stroke.

As described above, the present invention is a structurally simple and can be performed on the driving shaft 100 without washing the rotation of the dehydration tank (2) to prevent the rotation of the dehydration tank (2) during washing Multiple spaces (S1), (S2), (S3) and protrusions (D0 ((D1) ((D2) ((D3) ((D4)) can be used to selectively transfer power during washing and dehydration. There is no need for a separate power source according to the conversion, and when washing, the motor 7 and the dehydration tank 2 rotate in opposite directions, that is, there is a section in which the relative speed of the rotor 3 and the dehydration tank 2 is large. Therefore, it is possible to wash contaminants with high adhesion when washing, and thus it is a driving device of a fully automatic washing machine with improved washing effect.

Claims (3)

A drive shaft protrusion D0 inserted into and fixed to a central portion of the drive shaft 100; A first space S1 having an inner protrusion S1a formed at one inner side of the space to receive rotational force of the drive shaft protrusion D0 in engagement with the drive shaft protrusion D0 to rotate around the drive shaft 100; A first protrusion D1 inserted into the inner protrusion S1a of the first space S1; A second space S2 having an inner protrusion S2a formed at one side of the space to be rotated around the first space S1 by receiving the rotational force of the first space S1 in engagement with the first protrusion D1. )Wow; A second protrusion D2 inserted into the inner protrusion S2a of the second space S2; A third space S3 having an inner protrusion S3a formed at one side of the space to be engaged with the second protrusion D2 so as to receive a rotational force of the second space S2 to rotate around the space S2. )Wow; The third space (S3) is formed on the upper end of the fourth protrusion (D4) interlocked with the fourth projection (D4) installed in the lower portion to allow the rotational force of the third space (S3) to be transmitted to the fourth projection (D4) 3 protrusion D3; Fully automatic, characterized in that the fourth projection (D4) is engaged with the third projection (D3) to receive the rotational force of the third space (S3) to dehydrate the laundry while the dehydration tank (2) rotates in one direction. Drive of the washing machine. The driving shaft protrusion D0, the first protrusion D1, and the second protrusion D2 are disposed outside the first space S1, the second space S2, and the third space S3. Driving apparatus for a full automatic washing machine, characterized in that formed in a press-fit structure. According to claim 1, wherein each of the drive shaft protrusion (D0), the first protrusion (D1), the second protrusion (D2) and the first space (S1), the second space (S2), the third space (S3) The inner protrusions S1a, S2a, and S3a are engaged with each other to rotate so that the rotational force of each of the protrusions is transmitted to the corresponding spaces by the rotational forces S1, S2, and S3. Driving device for a full automatic washing machine, characterized in that the rotation is possible each independently.