KR19990079900A - washer - Google Patents

Abstract

The present invention relates to a washing machine, so that the washing and dehydration in the washing machine is smoothly performed even if the clutch required for switching between washing and dehydration mode is removed from the washing machine.

To this end, an embodiment of the present invention is provided with an outer case 1, an outer tub 2 installed in the outer case 1, and an inner tub 3 rotatably installed in the outer tub 2. In a washing machine; The first and second motors 101 and 102 are respectively installed on the bottom surface of the outer tub 2, and the washing and dewatering shaft 103 is coupled to the bottom surface of the inner tub 3. A first motor pulley 104 is axially coupled to the motor 101, a second motor pulley 105 is axially coupled to the second motor 102, and a first motor pulley is mounted on the washing and dewatering shaft 103. Coupling the first shaft pulley 106 to be connected by the 104 and the first v-belt 200, the second motor pulley 105 and the second v-belt 300 to the washing and dewatering shaft 103 By coupling the second shaft pulley 107 to be connected by.

To this end, another first embodiment of the present invention is an outer case (1), the outer tub (2) installed in the outer case (1), the inner tub (3) rotatably installed in the outer tub (2) And, In the washing machine provided with a pulsator (4) rotatably installed in the inner tub (3); The first and second motors 101 and 102 are respectively installed on the bottom surface of the outer tub 2, and the washing and dewatering shaft 103 is coupled to the bottom surface of the inner tub 3. A first motor pulley 104 is axially coupled to the motor 101, a second motor pulley 105 is axially coupled to the second motor 102, and a first motor pulley is mounted on the washing and dewatering shaft 103. Coupling the first shaft pulley 106 to be connected by the 104 and the first v-belt 200, the second motor pulley 105 and the second v-belt 300 to the washing and dewatering shaft 103 Coupled to the second shaft pulley 107 to be connected by, and the pulsator 4 and the pulsator coupling means for coupling the washing and dewatering shaft 103 is to be provided.

To this end, a second embodiment of the present invention is an outer case (1), an outer tub (2) installed in the outer case (1), and an inner tub (3) rotatably installed in the outer tub (2) And, In the washing machine provided with a pulsator (4) rotatably installed in the inner tub (3); The first and second motors 101 and 102 are respectively installed on the bottom surface of the outer tub 2, and the washing and dewatering shaft 103 is coupled to the bottom surface of the inner tub 3. A first motor pulley 104 is axially coupled to the motor 101, a second motor pulley 105 is axially coupled to the second motor 102, and a first motor pulley is mounted on the washing and dewatering shaft 103. Coupling the first shaft pulley 106 to be connected by the 104 and the first v-belt 200, the second motor pulley 105 and the second v-belt 300 to the washing and dewatering shaft 103 The second shaft pulley 107 is coupled so as to be connected by, and the pulsator 4 is fixed to the bottom surface of the inner tub 3 by a plurality of screws 118.

Description

washer

The present invention relates to a washing machine, and more particularly, to a washing machine to smoothly wash and dehydrate in the washing machine even if the clutch for switching between washing and dehydrating modes is removed.

In general, a washing machine puts laundry, water and detergent together, and then washes the laundry while rotating according to a signal generated from the controller.

Then, the configuration of the washing machine for reference as follows.

As shown in FIG. 1, the washing machine includes an outer case 1, an outer tub 2 installed to be supported in the outer case 1, and an inner tub 3 rotatably installed in the outer tub 2. And a pulsator 4 rotatably installed on the inner bottom surface of the inner tub 3 to remove contaminants by generating mechanical stirring force in the laundry, and an outer bottom center of the outer tub 2. And a clutch 6 coupled to the clutch 6 to selectively rotate the inner tub 3 and the pulsator 4 by receiving a driving force of the motor 5 through a V-Belt 9. 6) and the dehydration shaft (11) which is axially coupled to the inner tub (3) to transmit the rotational force, and is installed concentrically inside the dehydration shaft (11), the washing force of the motor (5) only in the pulsator (4) during washing When dehydration is delivered, it is combined with the dehydration shaft (11) to rotate the inner tub (3) and the pulsator (4) at the same speed Is fixed to the washing shaft 10, the lower end of the washing shaft 10, the clutch pulley (8) for receiving the rotational force of the motor (5) through the V-belt (9) and the first reduction, and the motor (5) And a motor pulley 7 which is axially coupled to the clutch pulley 8 to transmit the rotational force to the clutch pulley 8 through the V-belt 9, and is installed at an upper side of the outer case 1 through a water supply hose (not shown). The water supply valve 13 is opened and closed to supply the required washing water according to the selection, and the wash water used for washing and rinsing through the drain hose 15 is installed in the lower part of the out tub 2. Drain valve 14 to open and close to drain to the outside of the) and the hollow ring is installed on the upper portion of the inner tub (3) to reduce the vibration of the upper portion of the inner tub (3) due to the bias of the laundry The balancer 12 having a shape and the upper portion of the outer case 1 is provided with a controller 19, a water supply valve 13, A top cover 17 in which parts such as a water level sensor (not shown) and a door switch (not shown) are embedded, a door 20 installed and opened at an upper portion of the outer case 1, and the outer case 1 The base 18, which is installed at the lower part of the bottom support each component, and the inner tub 3 and the outer tub 2 which are rotated eccentrically due to the bias of the laundry contained in the inner tub 3 are collided with each other. It consists of a plurality of dampers 16 for preventing vibrations and noises.

The clutch 6 has three functions, and the first function is to separate and combine the washing shaft 10 and the dewatering shaft 11, that is, the washing shaft 10 to rotate only the pulsator 4 during washing. ) And the dehydration shaft (11), and when dewatering to combine the washing shaft (10) and dehydration shaft (11) to rotate the inner tub (3) and the pulsator (4) at the same speed, the second function Converts the rotational speed of the pulsator 4 at the time of washing to a speed suitable for washing, that is, the rotational speed of a normal motor 5 is 1800 rpm, and this speed needs to be decelerated at a speed that is too fast for washing. By the ratio of the motor pulley (7) and clutch pulley (8) (e.g. clutch pulley diameter: motor pulley diameter = 2: 1), the primary deceleration is made at about 900rpm, but this speed is too fast for washing. Inside the clutch 6 there is a reduction gear (not shown) using a gear ratio. Therefore, by the reduction device, 900rpm is secondly decelerated to about 100 ~ 250rpm, and the pulsator 4 is rotated to about 100 ~ 250rpm so that proper washing is possible. The third function is the brake function. When the door 20 of the washing machine is opened during the high speed rotation (900 rpm), the inner tub 3 is forcibly stopped within an appropriate time for the safety of the user.

The top cover 17 includes a controller 19, a water supply valve 13, a water level sensor, a door switch, and the like, and the controller 19 includes a key input unit for inputting a function desired by the user, and a washing machine. A microprocessor for controlling the display unit, the water level detection unit, the door detection unit, the load driving unit, and the like indicating the progress state is provided.

In the conventional washing machine configured as described above, the user inserts laundry into the inner tub 3 in a state in which the user opens the door 20 installed on the upper part of the outer case 1, closes the door 20, and then puts it on the controller 19. When the provided mode is selected, washing, rinsing, and dehydration are automatically performed within a predetermined time according to the control signal generated by the controller 19.

That is, when the washing mode is selected, the water supply valve 13 is opened so that the wash water to be used for washing is supplied through the water supply valve 13, and the washing water supplied to the water supply flows directly into the inner tub 3 to be filled by a predetermined height. When the washing water to be used for the washing is filled in the inner tub 3 by a certain height, the water supply valve 13 is closed and further water supply is stopped and at the same time, a motor fixed to one side of the outer bottom surface of the outer tub 2 ( 5) is continuously repeated in the forward and reverse directions.

In this way, when the motor 5 is driven in the forward and reverse directions, this driving force is transmitted to the clutch 6 coupled to the center of the outer bottom surface of the outer tub 2 through the V-belt 9, that is, the motor 5. The motor pulley (7) axially coupled to the shaft is rotated by the driving force of the motor (5), and the clutch pulley (8) axially coupled to the rotating motor pulley (7) and the clutch (6) is a V-belt (9). Since it is connected by the driving force of the motor (5) is transmitted to the clutch (6).

At this time, as the clutch 6 transmits the driving force of the motor 5 only to the pulsator 4 in a decelerated state, the clutch 6 rotates the laundry in the inner tub 3 while rotating only the pulsator 4. Since the water flow is generated, the laundry is washed by the rotational force of the pulsator 4 and the frictional force between the inner periphery of the inner tub 2 and the decomposition force of the detergent.

That is, the washing shaft 10 and the dehydration shaft 11 coupled to the clutch 6 are separated from each other, so that only the pulsator 4 is stirred left and right by the washing shaft 10 to the pulsator 4. As the laundry rotates, water flow is generated and the laundry is washed.

When the washing operation is completed by the above-described action, the drain valve 14 installed in the drain hose 15 opens under the control signal of the controller 19, so the wash water used for washing is outcased through the drain hose 5. Drained outside of (1).

In addition, since the rinsing action is performed by the same action as the above-described washing at the time of rinsing, a specific action is omitted, and hereinafter, only the dehydration time will be described below.

At the time of dehydration, the clutch 6 receives the driving force of the motor 5 received through the V-belt 9 in one direction while draining the rinsing water used for rinsing to the inner tub 3 and the pulsator 4. Since the primary decelerating state is transmitted, that is, the washing shaft 10 and the dehydration shaft 11 are coupled, the inner tub 3 and the pulsator 4 are simultaneously rotated at high speed.

Accordingly, while the laundry in the inner tub 3 is pushed outward by the centrifugal force, the moisture contained in the laundry is discharged. At this time, the drain valve 14 is opened, so the moisture discharged from the laundry is discharged through the drain hose 15. When drained to the outside of the outer case (1) and thus dehydration is completed, all the actions of the washing machine are finished.

At this time, when the laundry is twisted during washing and is not released during the rinsing or draining stroke and the dehydration stroke is started, the inner tub 3 is eccentrically rotated because the laundry is biased to one side in the inner tub 1, and the eccentricity is caused. The inner tub 3 rotates and the outer tub 2 and the inner tub 3 collide with each other, causing vibration. The safety switch of the washing machine detects an unbalance of the inner tub 3 and stops the washing operation of the washing machine. Noise or noise.

When the motor 5 rotates, vibration is also generated by the gears of the clutch 6 and the like that decelerate the rotational force of the motor 5 and the rotational force of the motor 5.

That is, vibration generated when the inner tub 3 is eccentrically rotated due to the washing of the laundry to one side, and vibration generated by the motor 5 and the clutch 6 are transmitted to the outer tub 2. Vibration of the tub 3 is reduced by the balancer 12 installed on the upper portion of the inner tub (3), the vibration transmitted to the outer tub (2) between the outer case (1) and the outer tub (2) It is reduced by the damper 16 which is provided in plural and operate | operates, respectively.

However, such a conventional washing machine has a problem that the overall structure is complicated and not only the productivity is lowered, but also precision parts such as a clutch are used to increase the manufacturing cost of the washing machine and a defect such as a clutch may occur.

The present invention has been made in order to solve the above problems, the object of the laundry and dehydration in the washing machine to smoothly remove even if the clutch required for the conversion of the washing and dehydration mode in the washing machine.

In order to achieve the above object, an embodiment of the present invention provides a washing machine including an outer case, an outer tub installed in the outer case, and an inner tub rotatably installed in the outer tub; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink Washing machine is provided, characterized in that by coupling the second shaft pulley to be connected by a belt.

In order to achieve the above object, a first embodiment of the present invention provides an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsate rotatably installed in the inner tub. In the washing machine provided with a data; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink Coupled to the second shaft pulley to be connected by a belt, there is provided a washing machine characterized in that it comprises a pulsator coupling means for coupling the pulsator and washing and dewatering.

In order to achieve the above object, a second embodiment of the present invention provides an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsate rotatably installed in the inner tub. In the washing machine provided with a data; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink The second shaft pulley is coupled to be connected by a belt, and the washing machine is provided, wherein the pulsator is fixed to the bottom surface of the inner tub by a plurality of screws.

1 is a cross-sectional view schematically showing the structure of a conventional washing machine.

Figure 2 is an embodiment schematically showing the structure of the washing machine of the present invention.

Figure 3a is another first embodiment schematically showing the structure of the washing machine of the present invention.

Figure 3b is a sectional view showing a state in which the dehydration and washing shaft is coupled.

Figure 4a is another second embodiment schematically showing the structure of the washing machine of the present invention.

4b and 4c show bushings.

4D and 4E show pulsator axes.

Figure 5a is another third embodiment schematically showing the structure of the washing machine of the present invention.

5b and 5c show bushings.

5D and 5E show pulsators.

Figure 6 is another fourth embodiment schematically showing the structure of the washing machine of the present invention.

Explanation of symbols for main parts of the drawings

101: first motor 102: second motor

103: washing and dewatering 104: the first motor pulley

105: second motor pulley 106: first shaft pulley

107: second shaft pulley 108: laundry shaft

109: bearing 110: groove

111: bushing 112: pulsator shaft

113: insertion groove 114: seating groove

115: screw insertion hole 116: screw fastening

117: projection 118: screw

200: first V-belt 300: second V-belt

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Since the structure of the washing machine has been mentioned in the conventional configuration, overlapping portions thereof will be omitted, and only the same structure will be given the same reference numeral as the conventional structure.

Figure 2 is an embodiment schematically showing the structure of the washing machine of the present invention, the present invention is an outer case 1, the outer case 2 is provided in the outer case 1, the outer tub 2 Inner tub 3 is rotatably provided in the column.

The first and second motors 101 and 102 are respectively installed on the bottom surface of the outer tub 2 to generate a driving force, and the washing and dewatering shaft 103 is formed at the center of the bottom surface of the inner tub 3. Is combined.

The first motor 101 is coupled to the first motor pulley 104 for transmitting the driving force of the first motor 101 to the washing and dewatering shaft 103, the second motor 102 is a second The second motor pulley 105 for transmitting the driving force of the motor 102 to the washing and dehydrating shaft 103 is axially coupled.

A first motor pulley 104 and a first shaft pulley 106 connected by the first v-belt 200 are coupled to the washing and dehydrating shaft 103, and the washing and dehydrating shaft 103 is formed of a first shaft pulley 106. The second motor pulley 105 and the second shaft pulley 107 connected by the second v belt 300 are coupled.

The second motor 102, which is rotated when dewatering among the motors 101 and 102 when braking the inner tub 3, is stopped and generates a driving force in a direction opposite to the first motor 101. ) Is driven to stop the inner tub 3 which is rotated during dehydration.

3A and 3B, as shown in FIGS. 3A and 3B, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube is provided. An inner tub 3 is rotatably provided in (2), and a pulsator 4 is rotatably provided on the bottom surface of the inner tub 3.

The first and second motors 101 and 102 for generating a driving force are respectively provided on the bottom surface of the outer tub 2, and the washing and dehydrating shaft 103 is provided at the center of the bottom surface of the inner tub 3. Are combined.

The first motor 101 is coupled to the first motor pulley 104 for transmitting the driving force of the first motor 101 to the washing and dewatering shaft 103, the second motor 102 is a second The second motor pulley 105 for transmitting the driving force of the motor 102 to the washing and dehydrating shaft 103 is axially coupled.

A first motor pulley 104 and a first shaft pulley 106 connected by the first v-belt 200 are coupled to the washing and dehydrating shaft 103, and the washing and dehydrating shaft 103 is formed of a first shaft pulley 106. The second motor pulley 105 and the second shaft pulley 107 connected by the second v belt 300 are coupled.

Pulsator coupling means for coupling the pulsator (4) and washing and dehydration (103) is provided.

The pulsator coupling means has a washing and dewatering shaft 103 is hollow, the washing shaft 108 penetrating through the washing and dewatering shaft 103 is rotatably coupled to the washing and dewatering shaft 103 The plurality of bearings 109 may be disposed between the inner circumferential edge of the washing and dehydrating shaft 103 and the outer circumferential edge of the washing shaft 108 so that the washing and dehydrating shaft 103 and the washing shaft 108 are rotated, respectively. Forced press

The laundry shaft 108 is coupled to the pulsator 4 through the washing and dehydration shaft 103.

The second motor 102, which is rotated when dewatering among the motors 101 and 102 when braking the inner tub 3, is stopped and generates a driving force in a direction opposite to the first motor 101. ) Is driven to stop the inner tub 3 which is rotated during dehydration.

As another second embodiment of the present invention, as shown in Figs. 4A to 4E, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube is provided. An inner tub 3 is rotatably provided in (2), and a pulsator 4 is rotatably provided on the bottom surface of the inner tub 3.

The first and second motors 101 and 102 for generating a driving force are respectively provided on the bottom surface of the outer tub 2, and the washing and dehydrating shaft 103 is provided at the center of the bottom surface of the inner tub 3. Are combined.

The first motor 101 is coupled to the first motor pulley 104 for transmitting the driving force of the first motor 101 to the washing and dewatering shaft 103, the second motor 102 is a second The second motor pulley 105 for transmitting the driving force of the motor 102 to the washing and dehydrating shaft 103 is axially coupled.

A first motor pulley 104 and a first shaft pulley 106 connected by the first v-belt 200 are coupled to the washing and dehydrating shaft 103, and the washing and dehydrating shaft 103 is formed of a first shaft pulley 106. The second motor pulley 105 and the second shaft pulley 107 connected by the second v belt 300 are coupled.

Pulsator coupling means for coupling the pulsator (4) and washing and dehydration (103) is provided.

The pulsator coupling means is a groove 110 is formed on the upper surface of the washing and dewatering shaft 103, the bushing 111 is coupled to the pulsator 4 is inserted in the groove 110, A pulsator shaft 112 is formed on the lower surface of the pulsator 4, and an insertion groove 113 is formed on the upper surface of the bushing 111 to insert the pulsator shaft 112. The bottom surface of the 111 is formed with a seating groove 114 is inserted into the head of the screw 118, the insertion groove 113 in the bushing 111 between the insertion groove 113 and the seating groove 114. And a screw insertion hole 115 penetrating through the seating groove 114, and a screw fastening hole 116 into which the screw 118 is inserted is formed at a lower surface of the pulsator shaft 112. Serrated projections 117 are formed in the longitudinal direction on the outer circumferential edge of the pulsator shaft 112 and the inner circumferential edge of the insertion groove 113, respectively. All.

The second motor 102, which is rotated when dewatering among the motors 101 and 102 when braking the inner tub 3, is stopped and generates a driving force in a direction opposite to the first motor 101. ) Is driven to stop the inner tub 3 which is rotated during dehydration.

In another third embodiment of the present invention, as shown in FIGS. 5A to 5E, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube is provided. An inner tub 3 is rotatably provided in (2), and a pulsator 4 is rotatably provided on the bottom surface of the inner tub 3.

The first and second motors 101 and 102 for generating a driving force are respectively provided on the bottom surface of the outer tub 2, and the washing and dehydrating shaft 103 is provided at the center of the bottom surface of the inner tub 3. Are combined.

The first motor 101 is coupled to the first motor pulley 104 for transmitting the driving force of the first motor 101 to the washing and dewatering shaft 103, the second motor 102 is a second The second motor pulley 105 for transmitting the driving force of the motor 102 to the washing and dehydrating shaft 103 is axially coupled.

A first motor pulley 104 and a first shaft pulley 106 connected by the first v-belt 200 are coupled to the washing and dehydrating shaft 103, and the washing and dehydrating shaft 103 is formed of a first shaft pulley 106. The second motor pulley 105 and the second shaft pulley 107 connected by the second v belt 300 are coupled.

Pulsator coupling means for coupling the pulsator (4) and washing and dehydration (103) is provided.

In the pulsator coupling means, the bearing 109 is forcibly pressed into the recess 110, and the bushing 111 is forcibly pressed into the inner diameter of the bearing 109, and an upper portion of the pulsator 4 is formed on the upper surface of the pulsator 4. Insertion groove 113 is formed so that the bushing 111 penetrates the lower surface of the inner tub 3, and the head of the screw 118 is inserted into the upper surface of the pulsator 4 A groove 114 is formed, and a screw insertion hole 115 penetrating the insertion groove 113 and the seating groove 114 is formed in the pulsator 4 between the insertion groove 113 and the seating groove 114. The upper surface of the bushing 111 is formed with a screw fastening hole 116 into which the screw 1187 is inserted and formed at an inner circumferential edge of the insertion groove 113 and an outer circumference of the bushing 111. Serrated projections 117 are formed in the longitudinal direction, respectively.

The second motor 102, which is rotated when dewatering among the motors 101 and 102 when braking the inner tub 3, is stopped and generates a driving force in a direction opposite to the first motor 101. ) Is driven to stop the inner tub 3 which is rotated during dehydration.

In another fourth embodiment of the present invention, as illustrated in FIG. 6, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube 2 is provided. An inner tub 3 is rotatably provided inside, and a pulsator 4 is rotatably installed on the bottom surface of the inner tub 3.

The first and second motors 101 and 102 for generating a driving force are respectively provided on the bottom surface of the outer tub 2, and the washing and dehydrating shaft 103 is provided at the center of the bottom surface of the inner tub 3. Are combined.

The first motor 101 is coupled to the first motor pulley 104 for transmitting the driving force of the first motor 101 to the washing and dewatering shaft 103, the second motor 102 is a second The second motor pulley 105 for transmitting the driving force of the motor 102 to the washing and dehydrating shaft 103 is axially coupled.

A first motor pulley 104 and a first shaft pulley 106 connected by the first v-belt 200 are coupled to the washing and dehydrating shaft 103, and the washing and dehydrating shaft 103 is formed of a first shaft pulley 106. The second motor pulley 105 and the second shaft pulley 107 connected by the second v belt 300 are coupled.

The pulsator 4 is fixed to the bottom surface of the inner tub 3 by a plurality of screws 118.

The second motor 102, which is rotated when dewatering among the motors 101 and 102 when braking the inner tub 3, is stopped and generates a driving force in a direction opposite to the first motor 101. ) Is driven to stop the inner tub 3 which is rotated during dehydration.

The operation of the present invention configured as described above is as follows.

First, since the water supply valve 13 installed in the washing machine is opened during washing, the washing water used for washing is supplied into the inner tub 3 installed in the outer tub 2 through the water supply valve 13, and the inner tub ( 3) When the wash water supplied into the water is filled by a certain height, the water supply valve 13 is closed and no further water supply is made.

At this time, the first motor (right turn motor) 101 installed on one side of the bottom surface of the outer tub 2 and the second motor (left turn motor) 102 installed on the other side of the bottom surface of the outer tub 2 are alternately driven. .

Since the first motor 101 and the second motor 102 are alternately driven, the first motor pulley 104 and the second motor 102 are axially coupled to the first motor 101. 2 motor pulley 105 is rotated left and right alternately, the first shaft pulley 106 connected by the first motor pulley 104 and the first V-belt 200 to the washing and dewatering shaft 103 The second and second shaft pulleys 107 coupled to each other by the second motor pulley 105 and the second V-belt 300 are coupled to the washing and dewatering shaft 103 so that the first and second motors 101 may be coupled to each other. The first and second shaft pulleys 106 and 107 are rotated left and right alternately by the driving force of the 102.

As described above, since the first and second shaft pulleys 106 and 107 are rotated alternately, the laundry condensed with the first and second shaft pulleys 106 and 107 on the outer bottom surface of the inner tub 3. The cum dehydration shaft 103 is also rotated alternately by the first and second shaft pulleys 106 and 107, and the inner tub 3 coupled to the washing and dehydration shaft 103 is also formed by the first and second motors. 101 is rotated side to side alternately according to the driving force of (102).

The laundry contained in the inner tub 3 rotated to the left and right is washed by the frictional force with the inner circumferential portion of the inner tub 3 and the decomposition force of the detergent.

In the dehydration, the washing water that washes the laundry contained in the inner tub 3 by opening the drain valve 14 is drained through the drain hose 15 to the outside of the washing machine. Since the first motor pulley 104 and the first shaft pulley 106 are rotated by driving the first motor 101 used during dehydration among the first and second motors 101 and 102, 103 and the inner tub 3 are rotated at high speed in one direction.

The laundry contained in the inner tub 3 is pushed outward in the inner tub 3 according to the rotational centrifugal force of the inner tub 3, which is rotated at high speed, and the washing water contained in the laundry comes out of the laundry.

At this time, since the drain valve 14 is in an open state, the wash water discharged from the laundry passes through the open drain valve 14 and is then drained to the outside of the washing machine through the drain hose 15 connected to the drain valve 14. .

When the user opens the lid 20 during the dehydration or if the inner tub 3 is to be braked rapidly, the first motor 101 driven in the dehydration direction (right rotation) is stopped and the direction opposite to the dehydration direction (left rotation) Since the driving force is generated by driving the second motor 102, the washing and dewatering shaft 103, which was rotated to the right, is braked by the second shaft pulley 107 which is rotated to the left by receiving the driving force of the second motor 102. The inner tub 3 is stopped.

And, as another first embodiment of the present invention shown in Figures 3a and 3b, the washing and dehydration process of the washing machine described in the embodiment of the present invention is the same, so the description of the washing machine is omitted, the present invention Only parts that are compared with one embodiment will be described.

As shown in FIGS. 3A and 3B, the lower end surface of the pulsator 4 installed on the bottom surface of the inner tub 3 includes a washing shaft 108 passing through the hollow washing / dehydrating shaft 103. Rotatingly coupled to the dehydration shaft 103, a plurality of bearings 109 are forced in between the inner circumferential edge of the washing and dewatering shaft 103 and the outer circumferential edge of the washing shaft 108.

As described above, when washing in the combined state, the first and second motors 101 and 102 installed on the bottom surface of the outer tub 2 are alternately driven, that is, one side of the bottom surface of the tub 2. The first motor (right rotating motor) 101 and the second motor (left rotating motor) 102 installed on the other side of the lower end surface of the outer tub 2 are alternately driven.

The first and second motor pulleys 104 and 105 coupled to the first and second motors 101 and 102, which are alternately driven left and right, are also rotated alternately, and the first motor pulley 104 and the first motor pulley 104 are alternately rotated. The first shaft pulley 106 connected by the first V-belt 200 and the second shaft pulley 107 connected by the second motor pulley 105 and the second V-belt 300 are also the first and second. The motor is rotated left and right alternately by the driving force of the 101 and 102.

Therefore, since the washing and dehydrating shaft 103 coupled with the first and second shaft pulleys 106 and 107 rotates alternately from side to side, the inner tub 3 coupled to the washing and dehydrating shaft 103 is also left and right. The laundry which is rotated alternately to and contained in the inner tub 3 is washed by the frictional force with the inner circumference of the inner tub 3 and the decomposition force of the detergent.

In the dehydration, the first motor 101 used for dehydration of the first and second motors 101 and 102 is driven to rotate the washing and dehydration shaft 103 and the inner tub 3 in one direction (right turn). The laundry contained in the inner tub 3 is pushed out of the inner tub 3 while the laundry contained in the inner tub 3 is pushed out of the laundry according to the rotational centrifugal force of the inner tub 3 being rotated at high speed. The laundry is dehydrated.

In this case, a plurality of bearings 109 are forced between the inner circumferential edge of the washing and dewatering shaft 103 and the outer circumferential edge of the washing shaft 108 such that the washing shaft 108 is rotated on the washing and dewatering shaft 103, respectively. Since the pulsator 4 does not reach the rotational speed of the inner tub 3 due to the frictional force between the laundry and the wash water, the pulsator 4 rotates little by little because of the press-fitted washing. Therefore, sufficient washing is possible only by the left and right rotation of the inner tub 3.

In addition, during dehydration, the laundry contained in the inner tub 3 which is rotated at a high speed in one direction (right turn) by the driving force of the first motor 101 transmitted to the washing and dewatering shaft 103 is placed on the pulsator 4. Since the pulsator 4 is rotated in the same direction as the rotation direction of the inner tub 3 by the laundry, the laundry is dehydrated.

When the user opens the lid 20 during the dehydration or if the inner tub 3 is to be braked rapidly, the first motor 101 driven in the dehydration direction (right rotation) is stopped and the direction opposite to the dehydration direction (left rotation) Since the driving force is generated by driving the second motor 102, the washing and dewatering shaft 103, which was rotated to the right, is braked by the second shaft pulley 107 which is rotated to the left by receiving the driving force of the second motor 102. The inner tub 3 is stopped.

And, as another second embodiment of the present invention shown in Figures 4a and 4e, the washing and dehydration process of the washing machine described in one embodiment of the present invention is the same, so the description of the washing machine is omitted, the present invention Only parts that are compared with one embodiment will be described.

As shown in Figs. 4A to 4E, the first and second motor pulleys 104 (1 and 2) are installed on the first and second motors 101 and 102, which are alternately driven to the left and right sides of the outer tub 2, respectively. 105 and the first and second shaft pulleys 106 and 107 are coupled to the washing and dehydrating shaft 103 coupled to the outer bottom surface of the inner tub 3.

The first shaft pulley 106 connected by the first motor pulley 104 and the first v-belt 200 is coupled to the washing and dehydration shaft 103, and the second motor pulley 105 and the second Since the second shaft pulley 107 connected by the V-belt 300 is coupled to the washing and dewatering shaft 103, the washing and dewatering shaft 103 is formed according to the driving force of the first and second motors 101 and 102. ) Rotates left and right alternately when washing, and rotates in one direction when dehydrating.

As described above, the bushing 111 is inserted into the groove 110 formed on the upper surface of the washing and dewatering shaft 103 coupled to the lower surface of the inner tub 3 to be freely rotated, and the bushing ( The pulsator shaft 112 formed on the bottom surface of the pulsator 4 is inserted into the insertion groove 113 formed on the top surface of the 111.

The pulsator shaft 112 inserted into the insertion groove 113 is inserted through the seating groove 114 and the screw insertion hole 115 of the bushing 111 and the screw fastening hole 116 of the pulsator shaft 112. The bushing 111 and the pulsator 4 are coupled to each other by being fastened to the bushing 111 by the fastening force of the screw 118.

At this time, the inner peripheral portion of the insertion groove 113 and the outer peripheral portion of the pulsator shaft 112 is formed with a tooth-shaped projection 117 in the longitudinal direction, respectively, so that the respective bushings 117 are engaged with each other. ) And the pulsator 4 are firmly coupled.

In the combined state as described above, the washing and dehydration shaft 103 alternately rotates to the left and right in accordance with the driving force of the first and second motors 101 and 102 which alternately generate the driving force during washing. The laundry contained in the tub 3 is washed and when dewatered, the washing and dewatering shaft 103 is oriented in one direction according to the driving force of the first motor 101 used during dehydration among the first and second motors 101 and 102. It turns to (right turn) and dehydrates the laundry.

Since the bushing 111 inserted into the recess 110 of the washing and dehydrating shaft 103 is free, the pulsator 4 is inner due to the rotational force and the laundry of the inner tub 3 which is rotated during washing and dehydration. Rotate in the same direction as the tub (3).

When the user opens the lid 20 during the dehydration or if the inner tub 3 is to be braked rapidly, the first motor 101 driven in the dehydration direction (right rotation) is stopped and the direction opposite to the dehydration direction (left rotation) Since the driving force is generated by driving the second motor 102, the washing and dewatering shaft 103, which was rotated to the right, is braked by the second shaft pulley 107 which is rotated to the left by receiving the driving force of the second motor 102. The inner tub 3 is stopped.

And, as another third embodiment of the present invention shown in Figures 5a and 5e, the washing and dehydration process of the washing machine described in one embodiment of the present invention is the same, so the description of the washing machine is omitted, the present invention Only parts that are compared with one embodiment will be described.

As shown in FIGS. 5A to 5E, the first and second motor pulleys 104 (1 and 2) are respectively installed on the first and second motors 101 and 102 installed alternately to the left and right surfaces of the outer tub 2. 105 and the first and second shaft pulleys 106 and 107 are coupled to the washing and dehydrating shaft 103 coupled to the outer bottom surface of the inner tub 3.

The first shaft pulley 106 connected by the first motor pulley 104 and the first v-belt 200 is coupled to the washing and dehydration shaft 103, and the second motor pulley 105 and the second Since the second shaft pulley 107 connected by the V-belt 300 is coupled to the washing and dewatering shaft 103, the washing and dewatering shaft 103 is formed according to the driving force of the first and second motors 101 and 102. ) Rotates left and right alternately when washing, and rotates in one direction when dehydrating.

As described above, the bearing 109 is forcibly pressed into the groove 110 formed on the upper surface of the washing and dewatering shaft 103 coupled to the lower surface of the inner tub 3 and then bushing the inner diameter of the bearing 109. The bushing 111 is rotated freely by the bearing 109 because the 111 is forcibly pressed.

The upper portion of the bushing 111 inserted into the inner diameter of the bearing 109 and penetrating the lower surface of the inner tub 3 is inserted into the insertion groove 113 formed in the lower surface of the pulsator 4, and the insertion is performed. The bushing 111 inserted into the groove 113 is a screw 118 inserted through the seating groove 114 and the screw insertion hole 115 of the pulsator 4 and the screw fastening hole 116 of the bushing 111. It is coupled to the pulsator (4) by the clamping force of.

At this time, the inner periphery of the insertion groove 113 and the outer periphery of the bushing 111 are serrated projections 117 in the longitudinal direction, respectively, so that the projections 117 are engaged with each other so that the bushings 111 and The pulsator 4 is firmly coupled.

In the combined state as described above, the washing and dehydration shaft 103 is rotated alternately to the left and right according to the driving force of the first and second motors 101 and 102 which alternately generate the driving force during washing, and thus the inner The laundry contained in the tub 3 is washed and when dewatered, the washing and dewatering shaft 103 is oriented in one direction according to the driving force of the first motor 101 used during dehydration among the first and second motors 101 and 102. It turns to (right turn), so the laundry is dehydrated.

Since the bushing 111 forcibly pressurized into the inner diameter of the bearing 109 in the groove 110 is rotated freely by the bearing 109, the bushing 111 rotates when the washing and dehydration rotates. The pulsator 4 is rotated in the same direction as the inner tub 3.

When the user opens the lid 20 during the dehydration or if the inner tub 3 is to be braked rapidly, the first motor 101 driven in the dehydration direction (right rotation) is stopped and the direction opposite to the dehydration direction (left rotation) Since the driving force is generated by driving the second motor 102, the washing and dewatering shaft 103, which was rotated to the right, is braked by the second shaft pulley 107 which is rotated to the left by receiving the driving force of the second motor 102. The inner tub 3 is stopped.

In addition, according to another fourth embodiment of the present invention shown in FIG. 6, the first and second motors are installed on the first and second motors 101 and 102, which are alternately driven to the left and right sides of the outer tub 2. The pulleys 104 and 105 are axially coupled, and the first and second shaft pulleys 106 and 107 are coupled to the washing and dehydrating shaft 103 coupled to the outer bottom surface of the inner tub 3.

The first shaft pulley 106 connected by the first motor pulley 104 and the first v-belt 200 is coupled to the washing and dehydration shaft 103, and the second motor pulley 105 and the second Since the second shaft pulley 107 connected by the V-belt 300 is coupled to the washing and dewatering shaft 103, the washing and dewatering shaft 103 is formed according to the driving force of the first and second motors 101 and 102. ) Rotates left and right alternately when washing, and rotates in one direction when dehydrating.

In addition, the pulsator 4 is coupled to the bottom surface of the inner tub 3 by a plurality of screws 118, so that the first and second motors 101 and 102 generate a driving force alternately from side to side during washing. According to the driving force of the washing and dehydration shaft 103 is rotated alternately from side to side, the inner tub (3) and the pulsator (4) also along the washing and dehydration shaft (103) rotated alternately from side to side The laundry contained in the inner tub (3) is washed because it is rotated together alternately.

In the dehydration, the washing and dehydration shaft 103 is rotated in one direction (right turn) according to the driving force of the first motor 101 used during dehydration among the first and second motors 101 and 102. Since the inner tub 3 and the pulsator 4 are rotated in one direction by the washing and dewatering shaft 103 that is rotated in the same manner, the laundry contained in the inner tub 3 is subjected to the rotational centrifugal force of the inner tub 3. As a result, the washing water contained in the laundry is pushed out and the laundry is dehydrated.

When the user opens the lid 20 during the dehydration or if the inner tub 3 is to be braked rapidly, the first motor 101 driven in the dehydration direction (right rotation) is stopped and the direction opposite to the dehydration direction (left rotation) Since the driving force is generated by driving the second motor 102, the washing and dewatering shaft 103, which was rotated to the right, is braked by the second shaft pulley 107 which is rotated to the left by receiving the driving force of the second motor 102. The inner tub 3 is stopped.

As described above, the present invention requires a motor capable of speed control in order to perform washing and dehydration operations, but at present, many motors capable of speed control such as BLDC motors or 2-speed DC motors are practically used, and thus, there is no problem in application.

Therefore, since the clutching function and the deceleration function are unnecessary, the conventional clutch can be removed, and the washing machine can be washed and dehydrated using only the motor, thereby simplifying the structure of the washing machine and Since the number is significantly reduced and the clutch is not used as a precision part, the material cost is reduced, as well as productivity is improved, and the defective rate is also reduced.

Claims (7)

A washing machine comprising an outer case, an outer tub installed in the outer case, and an inner tub rotatably installed in the outer tub; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink Washing machine, characterized in that by coupling the second shaft pulley to be connected by a belt. A washing machine comprising an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably installed in the inner tub; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink And a pulsator coupling means for coupling the second shaft pulley to be connected by a belt and for coupling the pulsator with the washing and dehydration shaft. The method of claim 2, The pulsator coupling means has a washing-and-de-shrinkable hollow, and a washing shaft is installed on the washing-and-de-shrinkable to rotate with the pulsator through the washing-and-shrinkage, and the inner periphery of the washing-and-shrinkable and the outer shaft of the washing shaft. Washing machine characterized in that the edge portion is pressed into a plurality of bearings. The method of claim 2, The pulsator coupling means forms a groove on the upper surface of the dewatering shaft, engages a bushing coupled with the pulsator in the groove, forms a pulsator shaft on the lower surface of the pulsator, and inserts a pulsator shaft on the upper surface of the bushing. Forming an insertion groove is formed, forming a seating groove in which the head of the screw is inserted into the bottom surface of the bushing, and forms a screw insertion hole penetrating the insertion groove and the mounting groove in the bushing between the insertion groove and the seating groove And a screw fastening hole into which a screw is inserted into a lower end surface of the pulsator shaft, and a sawtooth-shaped protrusion formed in the longitudinal direction on the outer circumferential edge of the pulsator shaft and the inner circumferential edge of the insertion groove, respectively. The method of claim 2, To form a groove on the upper surface of the deshrinkage, to combine the bushing coupled with the pulsator in the groove, to install a bearing to be forced into the groove, to install a bushing forced into the inner diameter of the bearing, On the bottom surface is formed an insertion groove into which the bushing penetrates the inner tub, and a seating groove into which the head of the screw is seated is inserted into the upper surface of the pulsator, and a pulsator between the insertion groove and the seating groove. Forming a screw insertion hole penetrating the insertion groove and the seating groove in the groove, and forming a screw coupling hole in which the screw is inserted into the upper surface of the bushing, and having a longitudinal tooth in the inner peripheral portion of the insertion groove and the outer peripheral edge of the bushing; Washing machine characterized in that the projections of each shape were formed. A washing machine comprising an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably installed in the inner tub; The first and second motors are respectively installed on the bottom surface of the outer tub, the washing and dehydration shaft is coupled to the bottom surface of the inner tub, the first motor pulley is axially coupled to the first motor, and the second motor is coupled to the second motor. Coupling a second motor pulley, Coupling a first shaft pulley to be connected by the first motor pulley and the first V-belt to the washing and de-shrink, and the second motor pulley and the second V to the washing and de-shrink And a second shaft pulley to be connected by a belt, wherein the pulsator is fixed to the bottom surface of the inner tub by a plurality of screws. The method according to any one of claims 1 to 6, Washing machine, characterized in that for stopping the inner tub stops the motor rotated when dehydration of the motor, and to rotate the inner tub is rotated by driving another motor generating a driving force in the opposite direction to the motor.