KR20060033588A - Washing machine - Google Patents

Abstract

In the washing machine according to the present invention, the washing water in the tub is supplied to the inside of the drive shaft by the circulation device, and the washing water supplied to the inside of the drive shaft is supplied to the inside of the drum, so that the washing water is quickly and evenly supplied to the fabric, so that washing performance is improved. And rinsing performance is improved.

Washing machine, tub, washing water, circulator, drive shaft, bag

Description

Washing machine             

1 is a cross-sectional view showing the internal configuration of a washing machine according to the prior art,

2 is a partially cutaway perspective view of a first embodiment of a washing machine according to the present invention;

3 is a cross-sectional view showing the internal configuration of the first embodiment of the washing machine according to the present invention;

4 is a cross-sectional view showing an internal configuration of a washing machine second embodiment according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 60; Tub

70: motor 76: drum

77: opening hole 78: through hole

79: lifter 80: water supply passage

82: drive shaft 90; circulator

92,92 ': Drain bellows pipe 94,94': Circulation pump

96,96 '; Guide bellows pipe 98,98 ′: injection nozzle

100,100 ': sealing member 118: spider

The present invention relates to a washing machine, and more particularly, to a washing machine in which the washing water in the tub is circulated into the drum through the drive shaft.

In general, a washing machine is a device that removes contaminants on clothing, bedding, etc. (hereinafter, referred to as 'po') using the action of detergent and water, and includes agitator type, pulsator type, and drum type ( drum type) Washing machine.

The stirring type washes by rotating the laundry rod rising to the left and right in the center of the washing tank. The vortex type washes by using the frictional force between the water flow and the cloth generated by rotating the disk-shaped pulsator formed at the lower part of the washing tank to the left and right. Put water, detergent and cloth into the drum of which the lift protrudes, and wash the drum by rotating it.

1 is a cross-sectional view showing the inside of a washing machine according to the prior art.

As shown in FIG. 1, the washing machine according to the related art includes a cabinet 2, a tub 4 mounted inside the cabinet 2 and containing wash water w, and an inner side of the tub 4. A drum (6) rotatably disposed on the drum (6), the drive shaft (8) passing through the tub (6) to rotate the drum (6), and the drive shaft (8) A driving means 10 for rotationally driving, a water supply device 12 for supplying the wash water w to the tub 4, and a drainage device 14 for draining the wash water w in the tub 4. It is configured to include.

In the washing machine configured as described above, the washing water w is supplied to the inside of the tub 6 through the water supply device 12 so as to be immersed in the inner lower portion of the tub 6, and introduced into the drum 6. Soaked in the fabric m, washing or rinsing of the fabric m is performed while the fabric m flows inside the drum 6 as the drum 6 is rotated in the tub 5.

After such washing or rinsing of the cloth m is performed for a predetermined time, the contaminated washing water w in the tub 4 is drained out of the washing machine through the drainage device 14.

Meanwhile, as shown in FIG. 1, a circulator for pumping the washing water w in the tub 4 to the front upper side of the drum 6, and then spraying the washing water w toward the inside of the drum 6. It is a trend to improve the washing performance and the rinsing performance by attaching (14).

However, the washing machine according to the related art has a long flow path distance in which the washing water w is pumped to the front upper side of the drum 6 so that the flow resistance increases, so that it is difficult to spray a large amount of washing water w quickly. There is this.

In addition, since the washing water (w) is injected toward the inside of the drum (6) from the front upper side of the drum (6), there is a non-injection area (A) there is a problem that is not evenly sprayed on the cloth (m) as a whole There is this.

The present invention has been made to solve the above-mentioned problems of the prior art, the washing water is passed through the drive shaft and then supplied to the inside of the drum, it is possible to supply the washing water evenly and quickly to the cloth, washing performance and rinsing performance The purpose is to provide a washing machine that can be improved.

Washing machine according to the present invention for solving the above problems is a tub; A drum rotatably disposed inside the tub and containing the cloth; A drive shaft installed to rotate the drum and having a water supply passage communicating with the inside of the drum; It characterized in that it comprises a circulating device for flowing the wash water to the water supply flow path so that the wash water in the tub can pass through the water supply flow path into the drum.

In addition, the drive shaft is characterized in that the hollow so that the water supply passage is formed in the longitudinal direction.

In addition, the circulation device and the drainage bellows installed to guide the wash water in the tub; A circulation pump installed to pump the wash water guided to the drainage bellows; And a guide flow path installed to guide the wash water pumped from the circulation pump to the water supply flow path.

The washing machine may further include a sealing member installed to prevent leakage between the water supply passage and the guide passage.

In addition, the washing machine according to the present invention includes a tub; A drum rotatably disposed inside the tub and containing the cloth; A drive shaft installed to rotate the drum; A plurality of bearings installed to support the drive shaft; A water supply flow passage formed in the drive shaft to communicate between the plurality of bearings and to communicate with an interior of the drum; It characterized in that it comprises a circulation device for flowing the wash water between the plurality of bearings so that the wash water in the tub can be supplied to the inside of the drum through the water supply passage in turn between the plurality of bearings.

In addition, the water supply passage is characterized in that the inlet is formed around the portion between the plurality of bearings in the drive shaft, the outlet is formed on the drum side.

The washing machine may further include a sealing member installed at a rear bearing side of the plurality of bearings to prevent leakage of the washing water.

In addition, the circulation device and the drainage bellows installed to guide the wash water in the tub; A circulation pump installed to pump the wash water guided to the drainage bellows; And a guide flow path installed to guide the wash water pumped by the circulation pump between the plurality of bearings.

In addition, the drum or the drive shaft is characterized in that the injection nozzle for spraying the wash water guided to the water supply passage into the drum.

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

2 is a partially cutaway perspective view of a first embodiment of the washing machine according to the present invention, and FIG. 3 is a cross-sectional view illustrating an internal configuration of the first embodiment of the washing machine according to the present invention.

As shown in FIG. 2 and FIG. 3, the washing machine according to the present embodiment includes a cabinet 50 forming an exterior of the washing machine, a tub 60 supported inside the cabinet 50; A drum (76) rotatably disposed inside the tub (60) and accommodating a fabric (m); A drive shaft (82) installed to rotate the drum (76) and having a water supply passageway (80) communicating with the interior of the drum (76); And a circulating device 90 for flowing the wash water into the water supply passage 80 so that the wash water in the tub 60 passes through the water supply passage 80 and circulates into the drum 76. .

The cabinet 50 includes a base fan 52, a cabinet body 54 disposed above the base fan 52, a top cover 56 disposed on an upper surface of the cabinet body 54, and the cabinet body. It is configured to include a cabinet cover 58 disposed in front of the 54.

The control panel 57 for operating the washing machine is disposed above the top cover 56 or the cabinet cover 58.

The cabinet cover 58 is formed with a cloth entrance hole 58a.

The door 59 for opening and closing the cloth access hole 58a is rotatably connected to the cabinet cover 58.

The tub 60 is a circular cylinder disposed horizontally or inclined at a predetermined angle. The tub 60 is supported by a spring 61 connected to the cabinet body 54 and supported by a damper 62 connected to the base fan 52. By the buffer.

The tub 60 is formed with an opening hole 63 through which the cloth (m) enters and exits from the front center side, and a water supply device 64 for supplying washing water to an upper side is connected, and the circulation unit is connected to a lower side. 90 is connected.

The water supply device 64 is connected to the external hose 65 is a water supply valve 66 for intermittent washing water supplied through the external hose 65 and the wash water passed through the water supply valve 66 is guided The water supply hose 67, the detergent container 68 through which the wash water guided by the water supply hose 67 passes, and the water supply bellows 69 which guide the wash water passing through the detergent container 68 to the tub 60. It is composed of

On the other hand, the tub 60 is provided with a drive means 70 for rotating the drive shaft 82.

The drive means 70 is mounted to the rear surface of the tub 60 is composed of a motor in which the drive shaft 82 is arranged, it is also possible to directly rotate the drum through the drive shaft 82, The belt and the drive are composed of a motor mounted on the lower portion of the tub 60, a drive pulley connected to the rotation shaft of the motor, a driven pulley connected to the drive shaft 82, and a belt wound around the drive pulley and the driven pulley. It is also possible to rotate the drum through the shaft 82, and the following description will be limited to the drive shaft 82 constituted by the motor 70 is installed.

The motor 70 is rotated by an electromagnetic force formed between the stator 71 mounted on the rear surface of the tub 60 and the stator 71, and the rotor 72 is connected to the drive shaft 82. It is composed.

The drum 76 is a circular cylinder disposed horizontally or inclined at a predetermined angle, such as the tub 60, and has an opening hole 77 through which a cloth m or washing water enters and is formed at the center of the front surface, and has a circumferential surface or a rear surface thereof. A through hole 78 through which washing water can flow in and out is formed, and a lift 79 is mounted to lift the cloth m from the inner circumferential surface to lift and drop the cloth m.

The drive shaft 82 is formed in a hollow pipe shape so that the water supply flow path 80 is formed in the longitudinal direction.

The circulation device 90 includes a drainage bellows 92 installed to guide the washing water w in the tub 60; A circulation pump (94) installed to pump wash water (w) guided to the drainage bellows (92); It comprises a guide flow path 96 installed to guide the wash water (w) pumped from the circulation pump 94 to the water supply flow path (80).

The drainage bellows 92 is connected so that one end is in communication with the bottom of the tub 60 and the other end is in communication with the circulation pump 94.

The circulation pump 94 is preferably located as close as possible to the drive shaft 82.

The guide flow path 96 is connected so that one end is in communication with the pump 94 and the other end is in communication with the water supply flow path 80.

The guide passage 96 is composed of a guide bellows pipe that can be stretched.

On the other hand, an injection nozzle 98 is installed on the inner surface of the drum 76 or the tip of the drive shaft 82 to spray the washing water w guided to the water supply passage 80 into the drum 76. do.

Preferably, the spray nozzle 98 is formed with a plurality of handmade water jets to spray washing water toward the entire inner circumferential surface of the drum 76.

On the other hand, the washing machine is further configured to further include a sealing member 100 installed to prevent leakage between the water supply passage 80 and the guide passage 96.

The sealing member 100 may be fixed to the drive shaft 82 or the motor 70, and the guide bellows tube 96 may be disposed to be slippery, and may be fixed to the guide bellows tube 96. The drive shaft 82 or the motor 70 may be disposed to be slippery. Hereinafter, the guide bellows tube 96 may be fixed to the drive shaft 82 or the motor 70. It demonstrates only to arrange | positioned.

In addition, the washing machine further comprises a drainage device 110 for draining the washing water in the tub 60 to the outside of the washing machine.

The drainage device 110 may drain the washing water branched from the circulation device 90 and passed through a portion of the circulation device 90 to the outside of the washing machine, and formed separately from the circulation device 90, and It is also possible to drain the washing machine in the washing machine 60 to the outside of the washing machine, and will be described below by being limited to the circulation device 90.

The drainage device 110 includes a second bellows 112 connected to the tub 60, a drain pump 114 installed to pump wash water w guided to the second bellows 112, and It comprises a drain hose 116 for guiding the washing water (w) pumped from the drain pump 114 to the outside of the washing machine.

Reference numeral 76a denotes a shaft through hole formed in the drum 76 such that the drive shaft 82 passes through the drum 76.

Reference numerals 84 and 86 denote bearings installed on the tub 60 side to support the drive shaft 82.

Reference numeral 118 denotes a spider mounted on the rear surface of the drum 76, and reference numeral 118a denotes a shaft through hole formed in the spider 118 so that the drive shaft 82 penetrates the spider 118.

Looking at the operation of the present invention configured as described above are as follows.

First, the cloth (m) is introduced into the drum 76, the detergent is put into the detergent container 68 of the water supply device 64, the door 59 is closed, and the washing and rinsing process and time If is selected, the water supply valve 66 of the water supply device 64 is turned on for a predetermined time and then turned off to pass a predetermined amount through the washing water (w), and the supplied washing water (w) is the water supply hose (67). The detergent is introduced into the detergent container 68 through which the detergent is mixed, and the washing water mixed with the detergent is supplied into the tub 60 through the water supply bellows 69.

The washing water mixed with the detergent supplied into the tub 60 is introduced into the drum 76 through the opening hole 77 or the through hole 78 and is wetted by the cloth m.

When the circulation pump 94 is driven while the water supply is completed or in progress, the washing water w supplied into the tub 60 is transferred to the circulation pump through the drainage bellows 92. 94, and is pumped by the circulation pump 94 to the guide bellows pipe, which is the guide flow path (96).

The wash water pumped into the guide bellows pipe 96 is moved toward the drum 76 through the water supply flow path 80 that is inside the drive shaft 82, and passes through the injection nozzle 98. It is sprayed in all directions toward the inner circumferential surface of the drum 76.

Washing water (w) sprayed toward the inner circumferential surface of the drum 76 is directly wetted in the cloth (m) while spreading three-dimensionally inside the drum (76).

After the above water supply is performed, when the motor 70 is turned on and the drum 76 is rotated, the lift 79 of the drum 76 spreads the foam m, and the foam m is It flows while falling by its own weight at the inner upper position of the drum 76, and as the flow proceeds, the contamination on the fabric drops.

On the other hand, when the circulation pump 94 is driven while the above cleaning is in progress, the wash water w in the tub 60 is drained to the circulation pump 94 through the drainage bellows 92. The pump is pumped into the guide bellows pipe which is the guide flow path 96 by the circulation pump 94.

The wash water w pumped into the guide bellows pipe 96 is moved toward the drum 76 through the water supply flow path 80, which is the inside of the drive shaft 82, and moves the spray nozzle 98. While passing through the drum 76 is centrifugally sprayed in all directions toward the inner circumferential surface.

Washing water (w) centrifugally sprayed toward the inner circumferential surface of the drum (76) strikes the fabric (m) while directly contacting the fabric (m) flowing in the drum (76), The cleaning power is increased.

On the other hand, when the washing machine is performed for a predetermined time as described above, when the motor 70 is turned off and the drainage pump 114 of the drainage device 110 is driven, the washing water in the tub 60 ( w) passes through the drainage bellows 112, the drainage pump 114 and the drainage hose 116 in order to drain out of the washing machine.

The washing machine then carries out a rinse stroke to rinse the foam in the fabric m.

The water supply valve 66 of the water supply device 64 is turned on and then turned off for a predetermined time to pass a predetermined amount through the washing water w, and the supplied washing water w passes through the water supply hose 67 and the detergent container 68. ) Passes through the feed water bellows 69 and is supplied into the tub 60.

If the circulation pump 94 is driven while the water supply is completed or in progress, the washing water w supplied into the tub 60 is the drainage bellows 92 as in the washing stroke. Pass through the circulating pump 94, the guide bellows pipe 96, and the drive shaft 82, and then spray the pump in all directions toward the inner circumferential surface of the drum 76 while passing through the injection nozzle 98. do.

Washing water (w) sprayed toward the inner circumferential surface of the drum 76 is directly wetted in the cloth (m) while spreading three-dimensionally inside the drum (76).

After the water supply is performed, when the motor 70 is turned on and the drum 76 is rotated, the lift 79 of the drum 76 lifts the cloth m, and the cloth m is the It flows while falling by its own weight at the inner upper position of the drum 76, and the foam remaining in the fabric is rinsed as the flow proceeds.

On the other hand, when the circulation pump 94 is driven while the rinsing is in progress, the washing water w in the tub 60 is the drainage bellows 92 and the circulation pump 94 as in the washing stroke. Pass through the guide bellows tube 96 and the drive shaft 82 in turn, and are centrifugally sprayed toward the inner circumferential surface of the drum 76 while passing through the injection nozzle 98.

Washing water (w) centrifugally sprayed toward the inner circumferential surface of the drum (76) strikes the fabric (m) while directly contacting the fabric (m) flowing in the drum (76), Rinsing force is increased.

On the other hand, when the washing machine performs the above rinsing for a predetermined time, the motor 70 is turned off, and when the drain pump 114 of the drainage device 110 is driven, the contaminated washing water in the tub 60 ( w) passes through the drainage bellows 112, the drainage pump 114 and the drainage hose 116 in order to drain out of the washing machine.

4 is a cross-sectional view showing an internal configuration of a washing machine second embodiment according to the present invention.

Washing machine according to the present embodiment, as shown in Figure 4, the cabinet 50; A tub 60 supported in the cabinet 50; A drum (76) rotatably disposed inside the tub (60) and accommodating a fabric (m); A drive shaft (82) installed to rotate the drum (76); A plurality of bearings (84,86) installed to support the drive shaft (82); A water supply passage 88 formed in the drive shaft 82 to communicate between the plurality of bearings 84 and 86 and to communicate with an interior of the drum 76; The plurality of bearings 84 such that the wash water w in the tub 60 may pass through the bearings 84 and 86 and the water supply passage 88 in order to be supplied into the drum 76. It comprises a circulation device 90 for flowing the wash water (w) between the (86).

Other configurations and functions of the cabinet 50, the tub 60, the drum 76, and the like are the same as those in the first embodiment of the present invention, and the same reference numerals are used, and detailed description thereof will be omitted.

The plurality of bearings 84 and 86 are mounted to the tub 60 or the motor 70.

The water supply passage 88 has an inlet 88a formed around a portion between the plurality of bearings 84 and 86 of the drive shaft 82, and an outlet 88b is formed on the drum 76 side. do.

The inlets 88a are formed to be spaced apart from each other in the circumferential direction.

The circulation device 90 'includes a drainage bellows 92' installed to guide the wash water w in the tub 60; A circulation pump 94 'installed to pump wash water guided to the drainage bellows; And a guide flow path 96 'installed to guide the wash water w pumped by the circulation pump 94' between the plurality of bearings 84 and 86.

The drainage bellows 92 'is connected so that one end is in communication with the bottom of the tub 60 and the other end is in communication with the circulation pump 94'.

The circulation pump 94 'is preferably located as close as possible to the drive shaft 82.

The guide flow path 96 ′ is formed by a guide bellows tube, one end of which is connected to communicate with the circulation pump 94 and the other end of which is communicated between the plurality of bearings 84 and 86.

The guide bellows pipe 96 'is disposed to penetrate the tub 60 or the motor.

On the other hand, the injection nozzle (98 ') for injecting the washing water (w) guided to the water supply flow path 80 into the drum 76 in the inner surface of the drum 76 or the tip of the drive shaft 82 is Is installed.

Preferably, the spray nozzle 98 'is formed with a plurality of handmade water jets to spray washing water toward the entire inner circumferential surface of the drum 76.

In addition, the washing machine further includes a sealing member 100 'installed on the rear bearing 86 side of the plurality of bearings 84 and 86 to prevent leakage of the wash water.

Reference numeral 120 denotes a bearing holder mounted to the tub 60 to support the plurality of bearings 84 and 86.

The bearing holder 120 is formed to be hollow so that the drive shaft 82 penetrates, and communicates with the inlet 88a of the water supply passage 88, and the guide bellows tube 96 ′ passes through one side of the bearing holder 120. Connected.

In the washing machine according to the present embodiment, when the circulation pump 94 'is driven, the washing water w supplied into the tub 60 is transferred to the circulation pump 94' through the drainage bellows 92 '. ) And pumped by the circulation pump 94 'to the guide bellows pipe, which is the guide flow path 96'.

The wash water pumped into the guide bellows pipe 96 'is pumped between the plurality of bearings 84 and 86, and the inlet 88a of the water supply flow path 88 between the plurality of bearings 84 and 86. Flows into).

The washing water w introduced into the inlet 88a of the water supply passage 88 passes through the water supply passage 88, which is the interior of the drive shaft 82, and then the outlet 88b of the water supply passage 88. Flows through the spray nozzle 98 and is sprayed in all directions toward the inner circumferential surface of the drum 76.

In the washing machine according to the present invention configured as described above, since the washing water in the tub is supplied to the inside of the drive shaft by the circulator, the washing water can be supplied to the inside of the drum, so that the washing water can be quickly and evenly supplied to the fabric. There is an advantage that the rinsing performance is improved.

In addition, the washing machine according to the present invention has the advantage that the washing water is not pumped up to the upper height of the drum, the pump is pumped up to the height of the center side of the drum, so that the pumped flow path distance and flow path resistance are minimized, so that a large amount of wash water can be circulated quickly. There is this.

In addition, the washing machine according to the present invention, since the washing water is sprayed in all directions toward the inner surface of the drum from the inner center side of the drum, the non-injection area in which the washing water is not sprayed is minimized, and the washing water can be circulated evenly through the cloth. There is this.

Claims (9)

Tub; A drum rotatably disposed inside the tub and containing the cloth; A drive shaft installed to rotate the drum and having a water supply passage communicating with the inside of the drum; And a circulation device configured to flow the wash water into the water supply passage so that the wash water in the tub passes through the water supply passage and is supplied into the drum. The method of claim 1, The drive shaft is a washing machine, characterized in that the hollow so that the water supply passage is formed in the longitudinal direction. The method of claim 1, The circulation device includes a drainage bellows installed to guide the wash water in the tub; A circulation pump installed to pump the wash water guided to the drainage bellows; Washing machine pumped from the circulation pump characterized in that it comprises a guide flow path installed to be guided to the water supply flow path. The method of claim 3, wherein The washing machine further comprises a sealing member installed to prevent leakage between the water supply passage and the guide passage. Tub; A drum rotatably disposed inside the tub and containing the cloth; A drive shaft installed to rotate the drum; A plurality of bearings installed to support the drive shaft; A water supply passage formed in the drive shaft so as to communicate with the plurality of bearings and communicate with the interior of the drum; And a circulating device for flowing the wash water between the plurality of bearings so that the wash water in the tub may be supplied between the bearings and the water supply passage in order to be supplied into the drum. The method of claim 5, wherein The water supply flow path is a washing machine, characterized in that the inlet is formed around the portion between the plurality of bearings in the drive shaft, the outlet is formed on the drum side. The method of claim 5, wherein The washing machine further comprises a sealing member installed on the rear bearing side of the plurality of bearings to prevent leakage of the wash water. The method of claim 1, The circulation device includes a drainage bellows installed to guide the wash water in the tub; A circulation pump installed to pump the wash water guided to the drainage bellows; And a guide flow path installed to guide the wash water pumped by the circulation pump between the plurality of bearings. The method according to any one of claims 1 to 8, The drum or the drive shaft is a washing machine, characterized in that the spray nozzle for spraying the washing water guided to the water supply passage into the drum.

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