KR20050087342A - Inclined drum-type washing machine with pulsator and washing method in washing machine - Google Patents

Abstract

 The present invention is to provide an inclined drum washing machine and a washing method having a pulsator to increase the washing effect, while reducing the water consumption during washing, while the user draws out the laundry conveniently.

To this end, the tub is installed inside the cabinet, the front side is inclined upwardly with respect to the ground; A drum installed inside the tub; A motor comprising a stator fixed to the tub and a rotor axially coupled to the drum; A pulsator located in the drum and axially coupled to the stator; A forward and reverse motor for driving the pulsator in the forward and reverse directions; A pulsator pulley connected to one side of the pulsator shaft; A pulsator comprising a belt connected to the stationary motor and one end connected to the motor pulley and the other end connected to the pulsator pulley to transfer a driving force of the stationary motor to the pulsate. There is provided an inclined drum washing machine having a.

At this time, the method for performing the washing according to the present invention is equipped with a pulsator, characterized in that to perform the washing stroke by rotating the pulsator more than three times faster than the drum in the same direction as the drum is rotated A washing method of an inclined drum washing machine is provided.

Description

Inclined drum-type washing machine with pulsator and washing method in washing machine}

The present invention relates to a drum washing machine, and more particularly to an inclined type having a pulsator for improving the structure of the drum washing machine to facilitate taking in and out of laundry when washing, and to increase the washing effect according to the structure. It relates to a drum washing machine and a washing method.

Generally, a washing machine is a device that removes dirty or dirty substances from laundry by chemical decomposition and mechanical impact.

Among them, the drum washing machine can not only reduce the overall height, but also increase the washing capacity, and almost no problems such as poking, compared to the pulsator washing machine that rotates with the drum, the inner tank standing, and the demand is more and more. There is a growing trend.

Hereinafter, the structure of a general drum washing machine will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the structure of a general drum washing machine, a drum washing machine having a tub (2) supported by a damper and a spring in the cabinet (1), and a cylindrical drum (3) rotatably installed in the tub (2). And a drive unit axially connected to the drum 3.

The drive unit is composed of a rotor 4 and a stator 5 at the rear of the tub 2, and rotates together with the drum 3 to transfer the driving force of the rotor directly to the drum 3 without a pulley or a belt. The rotor shaft 6 is directly connected to the rotor 4.

The front surface of the cabinet 1 is provided with a door 9 at a predetermined position so as to correspond to the opening of the drum 3, and a gasket for maintaining a seal in the drum 3 between the door 9 and the drum 3. 10 is provided.

The drum washing machine configured as described above is supplied with power, and the rotational force of the rotor 4 is transmitted to the drum 3 through the rotor shaft 6.

At this time, the washing operation is performed by the impact action that the laundry is lifted by the baffle 3a while the drum 3 rotates and then falls down by gravity.

However, in the conventional drum 3 washing machine constructed as described above, since the door 9 is located near the front center of the cabinet 1 and the drum 3 is horizontally installed, laundry is introduced into the drum 3 or the drum is loaded. When it is to be withdrawn from (3), there is a problem that the user is inconvenient, because the user must extend the hand into the drum (3) inside the squat or bent state.

Further, in the related art, since the washing stroke is performed only by the structure in which the drum 3 is rotated, excellent washing performance could not be expected.

The present invention has been made in order to solve the above-described conventional problems, while the user draws in and out of the laundry conveniently, while washing, while reducing the water consumption, the inclined drum washing machine having a pulsator for increasing the washing effect And to provide a method for washing the object.

In order to achieve the above object, the present invention is installed inside the cabinet, the front side is installed inclined upwardly with respect to the ground, the drum installed inside the tub, the stator and the drum fixed to the tub and A motor comprising an axially coupled rotor, a pulsator located in the drum and axially coupled to the stator, a forward and reverse motor for driving the pulsator in the forward and reverse directions, a pulsator pulley connected to one side of the pulsator shaft, A pulsator comprising a belt connected to the stationary motor and one end connected to the motor pulley and the other end connected to the pulsator pulley to transfer a driving force of the stationary motor to the pulsate. It provides an inclined drum washing machine having a.

At this time, the method of one embodiment for performing the washing according to the present invention is a pulsator characterized in that the washing process is performed by rotating the pulsator three times faster than the drum in the same direction as the drum rotation direction; It provides a washing method of an inclined drum washing machine having a.

In addition, another type of method for performing the washing according to the present invention is provided with a pulsator, characterized in that the washing stroke is performed by rotating the pulsator more than twice as fast as the drum in the opposite direction in which the drum is rotated. Provided is a washing method of an inclined drum washing machine.

In addition, another form of method for performing the washing according to the invention is to rotate the pulsator more than three times faster than the drum in the same direction as the drum is rotated, or the drum is rotated opposite It provides a washing method of an inclined drum washing machine having a pulsator, characterized in that to perform a washing stroke by rotating the pulsator more than twice as fast as the drum in the direction.

An embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

For reference, prior to describing the configuration of the present invention, in order to avoid duplication of description of the prior art reference to the same reference numerals will be referred to.

Figure 2 is a schematic diagram showing a structure of a drum washing machine according to the present invention, Figure 3 is an enlarged portion A of Figure 2, when the drum rotates, the pulsator is rotated three times faster in the same direction as the drum 4 is an enlarged view of a portion A of FIG. 2 and illustrates a state in which the pulsator rotates more than twice as fast as the drum when the drum rotates.

That is, as shown in Figures 2 to 4, the drum washing machine according to an embodiment of the present invention largely tub 2, the drum 3, the motor 100, the pulsator, and the pulsator drive unit It is configured to include.

Here, the tub is installed inside the cabinet 1, and the drum 3 is installed inside the tub 20 so as to be rotatable.

Here, a plurality of baffles 3a are provided on the inner circumferential surface of the drum 3.

In addition, the tub 2 is installed in a state in which the front side is inclined upwardly with respect to the ground.

In one embodiment according to the invention it is presented that the front side of the tub 2 is installed in an inclined state of less than 30 degrees about the ground.

At this time, the inclination of the tub 2 is to be inclined to 30 degrees or less in order to facilitate the input and withdrawal of the laundry, and to increase the washing effect.

On the other hand, when the angle of the inclination is more than 30 degrees, because the drum 3 is rotated in a state inclined at a large angle, during washing, the laundry is leaned toward the back of the drum 3, the laundry is tangled, the washing power is lowered In addition, there is a problem that excessive vibration occurs during dehydration.

In order to prevent this, it is preferable to incline the tub 2 to 30 degrees or less.

In addition, a hanging spring (2a) (hanging spring) through which the tub (2) is suspended is installed between the inside of the upper surface of the cabinet (1) and the outer peripheral surface of the tub (2), and the lower peripheral surface of the tub (2) and the cabinet. (1) Between the lower surfaces, a damper 2b for damping the vibration of the tub 2 generated during dehydration and a tub support shaft 2c are provided to maintain the tub 2 in an inclined state.

As described above, when the tub 2 is installed in an inclined state, the drum 3 installed inside the tub 2 is also installed in an inclined state, and the washing water is filled in the drum 3. Washing can be done using less.

For example, if a conventional drum washing machine performs washing by filling the drum 3 halfway to fill the washing water so that the laundry is locked, the drum washing machine according to an embodiment of the present invention is installed with the drum 3 tilted. For this reason, a part of the laundry is collected at the rear side of the inclined drum 3, and washing is performed by filling the wash water only so that the laundry collected at the rear side of the inclined drum 3 is locked.

In addition, the motor 100 includes a rotor 110 and a stator 120.

Here, the rotor 110 is installed to be axially coupled to the drum 3 through the tub (2), the stator (at a position facing the outer peripheral surface of the rotor 110 to rotate the rotor 110) 120 is installed.

At this time, the coupling between one end of the rotor shaft 111 and the rear side of the drum 3 and the other end of the rotor shaft 111 and the center side 110 of the rotor is coupled by the serration part 112. do.

In addition, the bearing housing 113 in which the rear bearings 113a and 113b are press-fitted and installed at the rear center of the tub 2 through which the rotor shaft 111 installed at the rear side of the drum 3 penetrates. ) Is insert molded and integrally formed.

In addition, the stator 120 is fixedly coupled to the rear wall of the tub 2 by a screw 500.

On the other hand, the pulsator 200 is installed inside the drum 3, to increase the washing effect.

At this time, the pulsator 200 and the pulsator shaft 210 are coupled by a screw 500.

For this reason, the pulsator 200 coupled to the pulsator shaft 210 is maintained in a state of being rotated in the drum 3 during the washing stroke under the constraint of the pulsator shaft 310.

The pulsator driving unit includes a pulsator pulley 310, a stationary motor 320, a motor pulley 330, and a belt 340.

Here, the pulsator pulley 310 is provided on the opposite side portion where the pulsator 200 and the pulsator shaft 210 are coupled.

That is, one end of the pulsator shaft 210 is connected to the pulsator 200, and the other end is connected to the pulsator pulley 310 through the center of the rotor shaft 111 and the stator 120. will be.

In addition, the forward and reverse motor 320 is provided to drive the pulsator 200 in the forward or reverse direction.

At this time, the motor pulley 330 is connected to the motor shaft 321 of the stationary motor 320.

In addition, one end of the belt 340 is connected to the motor pulley 330 of the stationary motor 320 and the other end is connected to the pulsator pulley 310 to drive the driving force of the stationary motor 320 to the pulsate. Pass in 200.

On the other hand, the rotating rotor shaft 111 is in contact with the pulsator shaft 210 between the inner circumferential surface of the rotor shaft 111 through which the pulsator shaft 210 penetrates and the outer circumferential surface of the pulsator shaft 210. It is preferable that a predetermined gap 111c is maintained so as not to be made.

In addition, between the stator 120 and the pulsator shaft 210 to which the pulsator shaft 210 is rotatably fixed, the pulsator shaft 210 is rotatable without being interfered with the stator 120. Preferably, a bearing 420 is included.

Method for performing the laundry according to an embodiment of the present invention configured as described above are as follows.

That is, according to one embodiment, the washing process is performed by rotating the pulsator 200 more than three times faster in the same direction in which the drum 3 is rotated.

Here, the washing method of the drum washing machine according to an embodiment of the present invention will be described in more detail.

First, when the power for the washing stroke is applied, the rotor 110 is rotated and the drum axially connected to the rotor 110 is rotated at a predetermined rpm (eg, 50 rpm) by a value set from the microcomputer (not shown).

At the same time, power is applied to the stationary motor 320 so that the stationary motor 320 is driven in the forward direction, that is, the direction in which the drum 3 is rotated, and thus, the motor pulley 310 and the pulsator The driving force is transmitted to the pulsator 200 from the belt 340 connected between the pulleys 330, the pulsator 200 is rotated.

At this time, the pulsator 200 is rotated at an rpm (eg, 100 rpm) corresponding to three times a predetermined rpm by the value set from the microcomputer.

That is, during the washing stroke of the drum washing machine, the drum 3 and the pulsator 200 are rotated in the same direction, and the rotation speed of the pulsator 200 is three times higher than the rotation speed of the drum 3. The rotation is faster than that and washing is performed.

At this time, the laundry is lifted by a plurality of baffles (3a) provided in the drum (3a) and the washing is performed while falling down by gravity, because the drum (3) is in an inclined state, When a part of the laundry falls, it is hit by the pulsator 200 is rotated.

In addition, while the drum 3 is inclined, the pulsator 200 is rapidly rotated relative to the rotational speed of the drum 3, so that a part of the washing water is concentric with the drum 3. It flows, and part of it is not concentric with the drum 3 due to the speed difference between the drum 3 and the pulsator 200, and irregular water flow is formed.

At this time, the water flow helps to wash the laundry evenly collected in the rear side of the drum evenly in the drum to wash the laundry evenly.

That is, when the drum washing machine is controlled in this manner, unlike the conventional drum washing machine, washing is not performed using only the impact force due to the drop of the laundry, but the interference between the laundry due to the speed difference between the drum 3 and the pulsator 200. And since the impact action is added, the washing performance is improved.

Next, another washing method for an embodiment of the present invention configured as described above is as follows.

That is, according to another washing method for an embodiment of the present invention, the washing process is performed by rotating the pulsator 200 more than twice as fast as the drum in the opposite direction in which the drum 3 is rotated. It is done.

Here, another washing method of the drum washing machine according to an embodiment of the present invention will be described in more detail.

First, when the power for the washing stroke is applied, the rotor 110 is rotated and the drum 3 axially connected to the rotor 110 is rotated at a predetermined rpm (eg, 50 rpm) by a value set from the microcomputer.

At the same time, power is applied to the stationary motor 320 so that the stationary motor 320 is driven in the reverse direction, that is, in a direction opposite to the direction in which the drum 3 is rotated, and thus, the motor pulley 310 ) And a driving force is transmitted from the belt 340 connected between the pulsator pulley 330 to the pulsator 200 so that the pulsator 200 is rotated in a direction opposite to the rotation direction of the drum 3. .

At this time, the pulsator 200 is rotated at an rpm (eg, 100 rpm) corresponding to twice the predetermined rpm by the value set from the microcomputer.

That is, during the washing stroke of the drum washing machine, the drum 3 and the pulsator 200 are rotated in opposite directions, but the rotational speed of the pulsator 200 is 2 compared to the rotational speed of the drum 3. It is rotated more than twice as fast as washing is performed.

At this time, the laundry is lifted by a plurality of baffles (3a) provided in the drum (3a) and the washing is performed while falling down by gravity, because the drum (3) is in an inclined state, When a part of the laundry falls, it is hit by the pulsator 200 is rotated.

In addition, since the pulsator 200 is rapidly rotated in a direction opposite to the rotation direction of the drum while the drum 3 is in an inclined state, compared to the rotation speed of the drum 3. It flows while forming a concentric circle with the drum 3, and part of it is not concentric with the drum 3 by a relative speed difference between the drum 3 and the pulsator 200, and an irregular water flow is formed.

When the drum washing machine is controlled in this manner, unlike the conventional drum washing machine, washing is not performed using only the impact force caused by the drop of the laundry, but the interference between the laundry due to the relative speed difference between the drum 3 and the pulsator 200 and Since impact action is added, washing performance is improved.

In addition, according to another washing method for an embodiment of the present invention, by rotating the pulsator 200 more than three times faster than the drum 3 in the same direction as the drum 3 is rotated Alternatively, the washing process is performed by rotating the pulsator 200 more than twice as fast as the drum in the opposite direction in which the drum 3 is rotated.

Here, another washing method of the drum washing machine according to an embodiment of the present invention will be described in detail.

First, when power for the washing stroke is applied, the rotor 110 is rotated and the drum axially connected to the rotor 110 is rotated at a predetermined rpm (for example, 50 rpm) by a value set from the microcomputer (not shown).

At the same time, power is applied to the stationary motor 320 so that the stationary motor 320 is driven in the forward direction, that is, the direction in which the drum 3 is rotated, and thus, the motor pulley 310 and the pulsator The driving force is transmitted to the pulsator 200 from the belt 340 connected between the pulleys 330, the pulsator 200 is rotated.

At this time, the pulsator 200 rotates at an rpm (eg, 150 rpm) corresponding to three times a predetermined rpm, based on the value set by the microcomputer.

After the washing process is performed for a predetermined time by the above method, the stationary motor 320 is driven from the micom in the reverse direction, ie, in the opposite direction in which the drum 3 is rotated.

At this time, the pulsator rotates at an rpm corresponding to twice the predetermined rpm (eg, 100 rpm) by the value set from the microcomputer.

That is, during the washing operation of the drum washing machine, the drum 3 and the pulsator 200 rotate the pulsator 200 more than three times faster than the drum 3 for a predetermined time in the same direction, and then the drum Washing is performed by rotating the pulsator 200 more than two times faster in the opposite direction of (3).

At this time, the laundry is lifted by a plurality of baffles (3a) provided in the drum (3a) and the washing is performed while falling down by gravity, because the drum (3) is in an inclined state, When a part of the laundry falls, it is hit by the pulsator 200 is rotated.

In addition, while the drum 3 is inclined, the pulsator 200 is rapidly rotated in the forward or reverse direction of the drum compared to the rotational speed of the drum 3, so that part of the washing water is partially discharged. It flows concentrically with (3), and part of it is not concentric with the drum 3 by the speed difference between the drum 3 and the pulsator 200, and an irregular water flow is formed.

The present invention as described above is provided with a rotatable pulsator 200 in the drum, the irregular water flow and laundry generated by hitting the rotating pulsator 200 in the drum between the laundry and the pelsator 200 Washing performance is improved due to impact due to the impact.

In addition, since the irregular water flow evenly disperses the laundry collected on the rear side of the drum 3 in the drum, washing performance is further improved.

On the other hand, in the washing method according to an embodiment of the present invention, the drum 3 and the pulsator 200 rotate the motor 100 and the pulsator 200 to rotate the drum by rotating the same direction. It has been proposed to use a forward and reverse motor 310, but using only the motor 100 for rotating the drum (3), by installing a reducer (not shown) in the motor 100, the drum (3) and It is also possible to rotate the pulsator 200 in the same direction.

At this time, by adjusting the gear ratio of each gear provided in the speed reducer it is possible to rotate the rotation speed of the pulsator 200 faster than the rotation speed of the drum (3).

At this time, the same effects as described above are provided.

As described above, the drum washing machine of the present invention can be easily drawn out of the laundry by installing the tub inclined, and the drum is rotated in an inclined state, so that the laundry can be flipped well and the water consumption can be reduced when washing. Therefore, there is an effect of improving the reliability of the product to the user.

In particular, since the rotatable pulsator is provided inside the drum, the washing performance is improved due to the impact caused by the irregular water flow and the impact between the laundry and the pulsator, the washing water of the drum hits the rotating pulsator.

In addition, the irregular water flow has an effect that the washing performance is further improved because the laundry collected on the rear side of the drum is evenly dispersed within the drum for washing.

1 is a cross-sectional view showing the structure of a general drum washing machine

Figure 2 is a schematic diagram schematically showing the structure of a drum washing machine according to the present invention

3 is an enlarged view of a portion A of FIG. 2 and illustrates a state in which the pulsator is rotated three times or more in the same direction as the drum when the drum rotates.

Figure 4 is an enlarged portion A of Figure 2, when the drum rotates, the principal part sectional view showing a state in which the pulsator is rotated more than twice faster in the opposite direction to the drum.

** Explanation of symbols for main parts in drawing **

1: cabinet 2: tub

2a: hanging spring 2b: damper

2c: tub support shaft 3: drum

3a: baffle 100: motor

110: rotor 111: rotor shaft

111c: gap 112: serration part

113: bearing housing 113a: front bearing

113b: rear bearing 120: stator

200: pulsator 210: pulsator shaft

310: pulsator pulley 320: stationary motor

330: motor pulley 340: belt

410: bearing 420: shaft bearing

500: screw

Claims (7)

A tub installed inside the cabinet, the tub being inclined upwardly with respect to the ground; A drum installed inside the tub; A motor comprising a stator fixed to the tub and a rotor axially coupled to the drum; A pulsator located in the drum and axially coupled to the stator; A forward and reverse motor for driving the pulsator in the forward and reverse directions; A pulsator pulley connected to one side of the pulsator shaft; A motor pulley connected to the stationary motor; And, One end is connected to the motor pulley, the other end is connected to the pulsator pulley belt for transmitting the driving force of the stationary motor to the pulsate: comprising an inclined drum washing machine comprising a pulsator. The method of claim 1, The pulsator shaft is One end is connected to the pulsator, the other end is inclined drum washing machine having a pulsator characterized in that it is connected to the pulsator pulley through the center of the rotor shaft and the stator. The method of claim 1, Between the stator and the pulsator shaft is rotatably fixed to the pulsator shaft is inclined with a pulsator, the shaft bearing is further configured to be rotatable without interference from the stator to which the pulsator shaft is fixed Type drum washing machine. The method of claim 1, The tub is inclined drum washing machine having a pulsator, characterized in that the front side is installed in an inclined state to the upper side 30 degrees or less. A motor installed inside the cabinet and having a front side inclined upwardly with respect to the ground, a drum installed inside the tub, a stator fixed to the tub and a rotor axially coupled to the drum, and A pulsator axially coupled to the stator, a stationary motor for driving the pulsator in the forward and reverse directions, a pulsator pulley connected to one side of the pulsator shaft, a motor pulley connected to the stationary motor, and In the washing method of the drum washing machine, one end is connected to the motor pulley of the stationary motor, and the other end is connected to the pulsator pulley to transfer the driving force of the stationary motor to the pulsate. Washing method of an inclined drum washing machine having a pulsator, characterized in that the washing stroke is performed by rotating the pulsator more than three times faster than the drum in the same direction as the drum rotates. A motor installed inside the cabinet and having a front side inclined upwardly with respect to the ground, a drum installed inside the tub, a stator fixed to the tub and a rotor axially coupled to the drum, and A pulsator axially coupled to the stator, a stationary motor for driving the pulsator in the forward and reverse directions, a pulsator pulley connected to one side of the pulsator shaft, a motor pulley connected to the stationary motor, and In the washing method of the drum washing machine, one end is connected to the motor pulley of the stationary motor, and the other end is connected to the pulsator pulley to transfer the driving force of the stationary motor to the pulsate. Washing method of an inclined drum washing machine with a pulsator, characterized in that the washing stroke is performed by rotating the pulsator more than twice as fast as the drum in the opposite direction in which the drum is rotated. A motor installed inside the cabinet and having a front side inclined about the ground, a drum installed inside the tub, a stator fixed to the tub and a rotor axially coupled to the drum, and in the drum A pulsator coupled to the stator, a forward and reverse motor for driving the pulsator in the forward and reverse directions, a pulsator pulley connected to one side of the pulsator shaft, a motor pulley connected to the forward and reverse motors, and one end In the washing method of the drum washing machine comprising a belt connected to the motor pulley of the stationary motor, the other end is connected to the pulsator pulley to transfer the driving force of the stationary motor to the pulsate, Wash the stroke by rotating the pulsator more than three times faster than the drum in the same direction as the drum rotates, or by rotating the pulsator more than twice as fast as the drum in the opposite direction in which the drum is rotated. Washing method of an inclined drum washing machine having a pulsator, characterized in that performing.