KR19990079901A - washer - Google Patents

Abstract

The present invention relates to a washing machine, even when removing the clutch required for the conversion of the washing and dehydration mode in the washing machine, the washing and dehydration in the washing machine is made smoothly and the number of parts is reduced to reduce the manufacturing cost, do not use precision parts This will reduce the defective rate of the product.

To this end, the present invention, the outer case (1), the outer tub (2) installed in the outer case (1), the inner tub (3) rotatably installed in the outer tub (2), the inner tub ( 3) a washing machine provided with a pulsator (4) rotatably mounted on a bottom surface of the inside; The washing motor 101 is installed on the bottom surface of the outer tub 2 and the washing pulley 103 is axially coupled, and the two dehydrating pulleys 104 are axially coupled to the bottom surface of the outer tub 2. The dehydration motor 102, the hollow dehydration shaft 11 is coupled to the bottom surface of the inner tub 3, and the washing shaft 10 is coupled to the pulsator 4 through the dehydration shaft 11 ), Which is coupled to the laundry shaft 10 by one of the laundry pulleys 103 and the V-belt 9, and the other one is dehydrated by the respective dehydrating pulleys 104 and the V-belt 9. It is composed of a plurality of pulleys 105 connected.

Description

washer

The present invention relates to a washing machine field, and more particularly, to a washing machine for smoothly washing and dehydrating in a washing machine even if a 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 And to deliver, when dewatering combined with the dehydration shaft (11) washing shaft 10 for transmitting the rotational force to the inner tub (3), The clutch pulley 8 is fixed to the lower end of the washing shaft 10 to receive the rotational force of the motor 5 through the V-belt 9 and decelerates first, and the V-belt 9 is axially coupled to the motor 5. Motor pulley (7) for transmitting the rotational force to the clutch pulley (8) and the upper side of the outer case (1) is installed through the water supply hose (not shown) to supply the required wash water according to the user's choice The water supply valve 13 is opened and closed to allow the water to be opened and closed to drain the wash water used for washing and rinsing through the drain hose 15 to the outside of the outer case 1. A drainage valve 14 and a hollow ring-shaped balancer 12 installed on the upper portion of the inner tub 3 to reduce vibrations of the upper portion of the inner tub 3 due to the deflection of laundry; It is installed on the upper part of the outer case 1, the controller 19, the water supply valve 13, the water level sensor (not shown) ), A top cover 17 in which parts such as a door switch (not shown) are installed, a door 20 installed and opened at an upper part of the outer case 1, and a lower part of the outer case 1. Vibration and noise generated by the base 18 supporting each of the components and the inner tub 3 and the outer tub 2 which are eccentrically rotated due to the bias of the laundry contained in the inner tub 3. It consists of several dampers 16 which prevent.

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 the dehydration shaft (11) to rotate the inner tub (3), the second function is a pulsator (4) during washing ) The rotational speed is converted to a speed suitable for washing, that is, the rotational speed of a conventional motor 5 is 1800 rpm, and this speed needs to be decelerated at a speed too high for washing. Due to the ratio of the pulley 8 (eg clutch pulley diameter: motor pulley diameter = 2: 1), the primary deceleration takes place at about 900 rpm, but this speed is too fast for washing, so the gear ratio inside the clutch 6 is reduced. Since there is a reduction gear (not shown) used, Secondary deceleration of the 900rpm to about 100-250rpm allows the pulsator (4) to rotate to about 100-250rpm so that proper washing is possible.The third function is a brake function that allows the inner tub (3) to rotate at high speed (900rpm) when dewatering. When the door 20 of the washing machine is opened, 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 it is transmitted as it is without deceleration, that is, the washing shaft 10 and the dehydration shaft 11 is coupled, the inner tub 3 and the pulsator 4 is rotated at the same time 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, even if the clutch required for the conversion of the washing and dehydration mode in the washing machine, even if the washing and dehydration in the washing machine is made smoothly and the number of parts to reduce the manufacturing cost The purpose is to reduce the defect rate of the product by reducing, and not using precision components.

In order to achieve the above object, the present invention is provided with 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 on the bottom surface of the inner tub. In a washing machine; The washing motor is installed on the bottom surface of the outer tub and the laundry pulley is condensed, The dewatering motor is installed on the bottom surface of the outer tub and the two dehydrating pulley is condensed, and the hollow coupled to the bottom surface of the inner tub Dehydration of the washing shaft, the washing shaft is coupled to the pulsator penetrates through the deshrinkage, and is coupled to the washing shaft by any one of the laundry pulley and V-belt, the other by each dehydration pulley and V-belt There is provided a washing machine comprising a plurality of pulleys connected to each other.

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

Figure 2 is a cross-sectional view schematically showing the structure of the washing machine of the present invention.

Figure 3 is a cross-sectional view showing a state in which the laundry shaft and the dehydration shaft of the present invention is combined.

Explanation of symbols for main parts of the drawings

101: washing motor 102: dewatering motor

103: washing pulley 104: dehydrating pulley

105: pulley 106: bearing

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3.

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.

2 is a cross-sectional view schematically showing the structure of the washing machine of the present invention, Figure 3 is a cross-sectional view showing a state in which the laundry shaft and the dehydration shaft of the present invention is coupled, the present invention is an outer case (1), the outer case (1) An outer tub 2 is provided in the inner tub, and an inner tub 3 is installed in the outer tub 2 so as to be rotatable, and a pulsator 4 is rotatable from side to side in the inner tub 3. ) Is installed.

A washing motor 101 is installed at one side of the bottom surface of the outer tub 2, and a dehydration motor 102 is installed at the other side of the bottom surface of the outer tub 2, and the laundry motor 101 is washed. The washing pulley 103 is rotated by receiving the driving force of the motor 101 is axially coupled, the dehydration motor 102 is a plurality of dehydrating pulley 104 is rotated by receiving the driving force of the dehydration motor (102) The dehydration pulley 104 is coupled to the first and second dehydration pulleys 104-1 and 104-2.

One end of the hollow dehydration shaft 11 is coupled to the bottom surface of the inner tub 3, and the washing shaft 10 penetrating the dehydration shaft 11 is coupled to the pulsator 4. One side of the shaft 10 is coupled to the laundry pulley 103 and the dehydrating pulley 104 and a plurality of pulleys 105 respectively connected by the V-belts 9.

The pulleys are formed of first, second, and third pulleys 105-1, 105-2, and 105-3, and the V-belt 9 includes first, second, and third V-belts 9-1 ( 9-2) (9-3).

The washing pulley 103 is connected by a second pulley 105-2 and a first v belt 9-1, and the first dehydrating pulley 104-1 is a third pulley 105-3. And a second v-belt 9-2, and the second dehydrating pulley 104-2 is connected by a first pulley 105-1 and a third v-belt 9-3. .

The diameters of the dehydrating pulleys 104 are the same, and each pulley 105-3 and 105-connected by the dehydrating pulleys 104-1 and 104-2 and the V-belt 9 is formed. The diameter of 1) is formed the same.

That is, the diameters of the 1st dehydration pulley 104-1 and the 2nd dehydration pulley 104-2 are the same, and the diameter of the said 1st pulley 105-1 and the 3rd pulley 105-3 is the same. Since the same is formed, the inner tub 3 and the pulsator 4 are rotated at the same speed by the driving force generated in the dewatering motor 102, and the dehydrating pulleys 104-1 and 104-2 The diameter and the diameter of the pulleys 105-3 and 105-1 are not the same.

When the rotational speed (rpm) of the dewatering motor 102 is 1800, the diameter ratio of the dehydrating pulleys 104-1, 104-2 and the pulleys 105-3, 105-1 is about 1: 2. This is because the rotation speed of the inner tub 3 is generally about 800 to 900 when dewatering.

In addition, the diameter ratio of the washing pulley 103 and the second pulley 105-2 is about 1: 10 when the rotation speed (rpm) of the washing motor 101 is 1800, the reason is usually wash This is because the number of revolutions of the time pulsator 4 is about 120 to about 130.

A plurality of bearings 106 are forced in between the inner circumferential edge of the dewatering shaft 11 and the outer circumferential edge of the washing shaft 10 so that the dewatering shaft 11 and the washing shaft 10 can be rotated, respectively.

The washing motor 101 is continuously and repeatedly driven in the forward and reverse directions (left and right directions), and the dehydration motor 102 is driven in one direction.

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 of the washing machine, the washing water used for washing is supplied into the inner tub 3 through the water supply valve 13, and the water is supplied into the inner tub 3. When the wash water is filled to a certain height, the water supply valve 13 is closed, and no further water is supplied, and the washing motor 102 installed on one side of the bottom surface of the outer tub 2 is repeatedly repeated in the forward and reverse directions (left and right rotations). Driven.

The washing pulley 103 condensed to the washing motor 101 is rotated by the driving force of the washing motor 101, and the washing shaft is rotated by the rotating washing pulley 103 and the first V-belt 9-1. Since the second pulley 105-2 coupled to 10 is connected, the second pulley 105-2 and the washing shaft 10 are also rotated to form a washing shaft 10 on the bottom surface of the inner tub 3. ) And the pulsator 4 rotated in the forward and reverse directions (left and right directions).

At this time, since the first pulley 105-1 coupled to the laundry shaft 10 is also rotated along the laundry shaft 10, the first pulley 105-1 is rotated along the dehydration motor 102 to be coupled to the third pulley 105-3. The first dewatering pulley 104 concentrically coupled to the dewatering motor 102 together with the second dewatering pulley 104-2 while the second dewatering pulley 104-2 connected by the V-belt 9-3 is also rotated. -1) is also rotated.

The third pulley 105-3 connected by the first dehydrating pulley 104-1 and the second V-belt 9-2 is rotated by the rotational force of the first dehydrating pulley 104-1, and the first Since the dehydration shaft 11 coupled with the third pulley 105-3 and the other side is rotated by the rotation force of the 3 pulleys 105-3, the inner tub 3 coupled with one side of the dehydration shaft 11 is rotated. It rotates in the same direction as the pulsator 4.

That is, the washing shaft 10 is rotated by the driving force of the washing motor 101, the pulsator 4 is rotated, thereby rotating the laundry contained in the inner tub 3 and generating the water flow of the washing water. Since the inner tub 3 is rotated by the dewatering shaft 11 that is rotated, the laundry is washed by the rotational force of the pulsator 4 and the frictional force between the inner periphery of the inner tub 3 and the decomposition force of the detergent.

When the washing machine is dewatered, when the washing water washing 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 tub 2, the tub 2 is discharged. The dehydration motor 102 is coupled to the other end of the lower surface.

The dehydration motor 102 is driven in one direction while the first dehydration pulley 104-1 and the second dehydration pulley 104-2 coupled to the dehydration motor 102 are rotated.

The third pulley 105-3 connected to the second V-belt 9-2 is rotated by the rotated first dehydrating pulley 104-1, and a decoupling coupled to the third pulley 105-3 is rotated. As the contraction 11 is also rotated, the driving force of the dehydration motor 102 is transmitted to the inner tub 3 coupled to the other side of the dehydration shaft 11 so that the inner tub 3 is also rotated.

In addition, the first pulley 105-1 connected to the third V-belt 9-3 is rotated by the second dehydrating pulley 104-2 that is rotated, and coupled to the first pulley 105-1. While the washing shaft 10 is also rotated, the driving force of the dehydration motor 102 is transmitted to the pulsator 4 coupled to the washing shaft 10, so that the pulsator 4 is also rotated.

Since the pulsator 4 and the inner tub 3 rotate in the same direction according to the driving force of the dewatering motor 102, the laundry contained in the inner tub 3 is moved outward in the inner tub 3 by the rotational centrifugal force. The washing water contained in the laundry is pushed out of the laundry. At this time, since the drain valve 14 is open, the laundry water exiting the laundry passes through the drain valve 14 and passes through the drain hose 15. Drain to the outside

As such, during washing and dehydration, the washing shaft 10 and the dehydration shaft 11 are rotated at the same time, and the inner tub 3 coupled to the pulsator 4 and the dehydration shaft 11 coupled to the washing shaft 10. ) Is rotated in the same direction at the same time, so that washing and dehydration in the washing machine are performed smoothly.

At this time, the washing shaft 10 is penetrated through the dewatering shaft 11, that is, a plurality of bearings 106 forcibly pressed between the inner circumferential edge of the dewatering shaft 11 and the outer circumferential edge of the satak shaft 10, respectively. Since the dehydration shaft 11 and the washing shaft 10 are rotated by the bearing 106, the inner tub 3 and the pulsator 4 are rotated, respectively.

In addition, the diameters of the first dewatering pulley 104-1 and the second dewatering pulley 104-2 are the same, and the diameters of the first pulley 105-1 and the third pulley 105-3 are equal to each other. Since the pulsator 4 and the inner tub 3 are rotated at the same speed because they are formed in the same manner.

Here, a safety accident may occur when a user opens the door 20 and puts his / her hand while washing the laundry. Thus, a door lock device may be installed on the door 20 to prevent the door 20 from opening during dehydration. Prevent accidents in advance

As described above, the present invention does not require a clutching function, a deceleration function by a reduction gear, a brake function, and the like, and thus, by removing the clutch required for switching between washing and dehydration mode, washing and dehydration can be performed using only a motor. The defect rate is reduced, and the number of parts used in the washing machine is reduced, thereby reducing the material cost and simplifying the overall washing machine structure, thereby improving productivity.

In addition, since the two motors are fixed on both sides of the lower end of the outer tub in a balanced manner, there is an effect of reducing the vibration of the inner tub and the outer tub during dehydration.

Claims (3)

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 mounted on a bottom surface of the inner tub; A washing motor installed on the bottom surface of the outer tub and the washing pulley is axially coupled; A dewatering motor installed at a lower surface of the outer tub and having two dehydrating pulleys axially coupled thereto; Hollow de-shrinkage coupled to the bottom surface of the inner tub, Washing shaft is coupled to the pulsator penetrates through the dehydration, Washing machine, characterized in that consisting of a plurality of pulleys are axially coupled to the laundry shaft is connected to one by the laundry pulley and V-belt, the other is connected to each other by each dehydrating pulley and V-belt. The method of claim 1, Washing machine, characterized in that the diameter of each dehydrating pulley is formed the same. The method of claim 1, Washing machine, characterized in that the diameter of each pulley connected by the dehydrating pulley and the V-belt is formed the same.