KR100517616B1 - Drum washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine that can not only increase washing performance by heating the washing water but also cleans the washing water to shorten the number of rinsing times and the rinsing time. A drum rotatably positioned inside the tub, in which laundry is to be received, and a hand is formed; A motor for generating a driving force for rotating the drum; A plasma discharge device for plasma discharge the wash water drained from the tub; And a circulation pump configured to circulate the washing water discharged by the plasma discharge device to the inside of the tub.

Description

Drum washing machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum washing machine, and more particularly, to a drum washing machine capable of heating or purifying washing water by plasma discharge, thereby improving washing and rinsing performance.

In general, a drum washing machine is a device for washing a laundry through a process of washing, rinsing, and dehydrating to remove contamination from clothes, bedding, and the like contained in the drum by using the action of the washing water contained in the tub.

1 is a partially cutaway perspective view of a drum washing machine according to the prior art, and FIG. 2 is an internal configuration diagram of the drum washing machine according to the prior art.

1 and 2, the conventional drum washing machine is provided with a base 1 and an entrance hole disposed above the base 1 to form an exterior, and to allow the laundry m to enter and exit the front surface of the drum washing machine. A casing 2 having a 2a formed therein, a door 4 rotatably mounted on the front surface of the casing 2 and supporting the door 2 and opening and closing the access hole 2a, and a cushioning support in the inside of the casing 2. A tub (6), a water supply device (10) for supplying detergent dissolved water or clean water (hereinafter referred to as washing water (w)) to the inside of the tub (6), and in the tub (6) A drainage device 12 for draining the washing water w to the outside of the casing 2, a drum 20 rotatably disposed in the tub 6 to accommodate the laundry object m, and the drum ( 20 is configured to include a motor 30 to rotate.

The tub 6 has an opening 7 formed at the rear of the access hole 2a of the casing 2 to allow the laundry m to enter and exit the drum 20.

The drum 20 has an entrance 21 formed at the rear of the entrance hole 2a of the casing 2 to allow the object m to enter and exit, and the lower part of the drum 20 is immersed in the wash water in the tub 6. The hand 22 is formed in the circumference and the rear part so that the washing water w in the tub 6 can enter and exit.

In addition, a lift 26 is mounted on the inner circumference of the drum 20 so as to lift the laundry m to be lifted up to the inner upper part of the drum 20 and fall by its own weight. do.

The motor 30 is mounted on the rear part of the tub 6, and is disposed horizontally or horizontally so that the rotating shaft 32 penetrates the center of the rear part of the tub 6 and is connected to the center of the rear part of the drum 20. .

In addition, the drum washing machine includes a washing water heating device for heating the washing water in the tub 6, and an electric heater 8 for heating the washing water is mounted at an inner lower portion of the tub 6. To increase the washing power of the laundry (m).

Reference numeral 48 is a gasket mounted on the tub 6 to prevent leakage between the door 4 and the entrance hole 7 of the tub 6 when the door 4 is closed.

Looking at the operation of the prior art configured as described above are as follows.

First, when the laundry (m) is introduced into the drum 20 and the door 4 is closed and the drum washing machine is operated, the water supply device 10 is supplied to the inner lower portion of the tub 6. The washing water w is accumulated, and the lower part of the drum 20 is immersed in the washing water w, and the washing object m in the drum 20 receives the hand 22 of the drum 20. It is soaked in the washing water (w) introduced through.

Then, when the motor 30 is driven so that the drum 20 is rotated, the laundry m received inside the drum 20 is lifted by the lift 26 and dropped while washing water (w). ) The time of staining will drop.

At this time, power is applied to the electric heater (8), the wash water in the tub (6) is heated by the electric heater (8) to increase the solubility of the detergent, and reacts with the time when the laundry (m) It is accelerated | stimulated and the washing | cleaning power of the to-be-washed material m increases.

After the washing stroke is completed, the contaminated washing water w in the tub 6 is drained out of the drum washing machine through the drainage device 12.

On the other hand, the washing machine is a rinsing process for rinsing the foam remaining in the laundry (m) several times, washing water is supplied through the water supply device 10 is contained in the tub 6, the motor 30 When the drum 20 is rotated so that the laundry m received inside the drum 20 is lifted by the lift 26 and the foam is rinsed off.

And, the contaminated wash water containing the foam is drained to the outside through the drainage (12).

After the above several rinsing strokes, the drum washing machine is dewatered to drain the laundry object m.

That is, when the motor 30 rotates the drum 20 at a high speed, the water in the laundry object m is discharged through the hand 22 of the drum 20 while being centrifugally dehydrated to the tub 6. Are collected and drained to the outside through the drainage device 12.

However, in the conventional drum washing machine, only the electric heater 8 can increase the temperature of the washing water, so that a considerable amount of power must be input to the electric heater 8, and the washing water takes a considerable time to heat up. There is a problem that the rinsing stroke is made several times and the rinsing time takes a long time.

The present invention has been made to solve the problems of the prior art, to provide a drum washing machine that can not only increase the washing performance by heating the washing water, but also to reduce the number of rinsing times and rinsing time by purifying the washing water. The purpose is.

Drum washing machine according to the present invention for solving the above problems is a tub containing wash water; A drum rotatably positioned inside the tub, in which laundry is to be received, and a hand is formed; A motor for generating a driving force for rotating the drum; A plasma discharge device for plasma discharge the wash water drained from the tub; And a circulation pump configured to circulate the washing water discharged by the plasma discharge device to the inside of the tub.

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

Figure 3 is a partially cutaway perspective view of one embodiment of a drum washing machine according to the present invention, Figure 4 is an internal configuration of one embodiment of a drum washing machine according to the present invention.

3 and 4, the drum washing machine according to the present embodiment is mounted with a casing 52 to form an appearance on the upper side of the base 51, and the laundry (m) on the front surface of the casing 52. The door 56 is rotatably mounted in order to open and close the entrance hole 54 and the entrance hole 54 through which the door is accessible.

Inside the casing 52 is a tub 60 containing water in which detergent is dissolved or clean water (hereinafter referred to as washing water) is mounted.

The tub 60 has an opening 62 through which the laundry object m may enter and exit from the entrance hole 54 of the casing 52. The tub 60 is opened so that the wash water does not leak between the doors 56. A gasket 64 is mounted at a front circumference of the 62, and a lower portion thereof is connected to a damper 66 mounted on an upper surface of the base 51 so as to be buffered and supported by the base 51. The upper part is connected to a spring 68 mounted on the upper part of the upper part), and is supported to be buffered as if suspended from the casing 52.

On the other hand, the laundry is accommodated inside the tub 60, the drum 70 for washing, rinsing, and dehydrating the laundry (m) is located, the drum 70 of the casing 52 An entrance 72 through which the laundry object m may enter and exit is formed at the rear of the entrance hole 54, and a plurality of manual holes 74 are formed to allow the washing water in the tub 60 to flow in and out of the circumference or the rear part. And, the lift 76 is mounted so that the laundry object (m) accommodated in the inner circumferential surface is lifted upward and free fall.

On the other hand, the drum washing machine casing 52 the driving means for rotating the drum 70, the water supply device 90 for supplying the wash water into the tub 60, and the wash water in the tub 60. It includes a drainage device 100 for draining to the outside.

3 and 4, the driving means is mounted on the rear surface of the tub 60, and the rotating shaft 82 is supported while penetrating the rear surface of the tub 60 to be disposed horizontally or close to horizontal. A motor 80 having an end portion of the rotary shaft 82 connected to the rear surface of the drum 70 or a motor mounted on the lower portion of the tub 60 and having a driving shaft, and a rear surface of the tub 60. It is composed of a driven shaft which is supported so as to penetrate the horizontally or close to the horizontal, and a belt wound around the drive shaft and the driven shaft of the motor.

The water supply device 90 is connected to an external hose, the water supply valve 92 for intermitting the wash water being supplied, the water supply hose 94 for guiding the wash water passed through the water supply valve 92, and the water supply hose The water supply passage of the wash water supplied through the 94 is formed and a detergent container 96 having a detergent accommodating part in which a detergent is contained on one side of the water supply passage, and the wash water passing through the detergent container 96 are connected to the tub 60. It includes a water supply bellows (98) in communication with the tub (60) to guide the inside.

The drainage device 100 communicates with one side of the lower portion of the tub 60 to drain the washing water in the tub, and pumps (or interrupts) the wash water drained to the draining bellows 102. ), A drain pump 104 or a drain valve, and a drain hose 106 for guiding the wash water passing through the drain pump 104 or the drain valve to the outside.

In addition, the drum washing machine includes an electric heater 110 for heating the wash water in the tub 60, a plasma discharge device 120 for heating or purifying the plasma by washing the wash water in the tub 60, and the plasma. It further comprises a circulation pump 130 for circulating the washing water discharged by the discharge device 120 into the tub (60).

The electric heater 110 is mounted on the inner lower side of the tub 60, a heating member such as a coil is built therein to heat the washing water around when the power is applied to increase the washing power of the laundry (m). .

The plasma discharge device 120 and the circulation pump 130 are mounted below the tub 60.

Reference numeral 142 is a mesh-shaped filter attached to the inlet of the flow path of the plasma discharge device 120 is a foreign matter in the wash water (w) drained from the tub 60, the reference numeral 143 is a filter ( 142 is a filter guide that slides in and out.

The filter guide 143 is formed in a cross-sectional shape 'b' or 'c' shape, it is preferably composed of left and right filter guides spaced apart from each other by the interval of the filter 142.

And, reference numeral 144 is connected to the outlet of the flow path of the plasma discharge device 120 so that the washing water passed through the plasma discharge device 120 and the heated or purified washing water can be sucked into the suction port of the circulation pump 130. And the other end is a first guide pipe connected to the inlet of the circulation pump 130.

In addition, reference numeral 146 denotes that the washing water pumped from the circulation pump 130 is sprayed on the laundry m through the access hole 62 of the tub 60 and the entrance hole 72 of the drum 70. One end is a second guide pipe is connected to the discharge port of the circulation pump 130 and extends to the upper side of the gasket 64 and the other end is connected to the gasket 64, reference numeral 148 is the second guide The pipe 146 is connected and the inside is hollow guide pipe connector formed protruding on one side of the gasket (64).

On the other hand, the second guide pipe 146 is not connected to the gasket 64 as described above, the washing water pumped by being connected to the guide pipe connector (not shown) formed on one side of the tub 60, the tub 60 Of course, it is also possible to be guided between the inner circumference of the perimeter and the outer periphery of the drum (70).

Figure 5 is an enlarged view showing a plasma discharge device of one embodiment of a drum washing machine according to the present invention.

As shown in FIG. 5, the plasma discharge device 120 sprays the washing water drained from the tub 60 and is connected to the grounded washing water injection hole 122 and the washing water injection hole 122. A high voltage is applied to the dielectric bucket 124 through which the wash water passes, the discharge electrode 126 mounted on the dielectric bucket 124, and the discharge electrode 126 to discharge the washing water sprayed from the washing water injection hole 122. And a high voltage generator 128 to be applied.

The washing water injection hole 122 has an upper end disposed below the filter 142 so that the washing water passing through the filter 142 flows in, and passes through an upper end of the dielectric keg 124, and the dielectric keg 124. At the lower end protruding to the inner top of the nozzle 129 is provided, the upper one side of the nozzle 129 is connected to the ground.

The dielectric cylinder 124 is a hollow insulator. When a high voltage is applied to the discharge electrode 126, electric charge is generated by an electric field between the discharge electrode 126 and the washing water injection hole 122.

The discharge electrode 126 is formed in a cylindrical shape surrounding the outer circumference of the dielectric cylinder 124, and preferably made of metal, particularly copper.

The high voltage generator 128 applies a high voltage of about 5 to 7kv to the discharge electrode 126.

Reference numeral 61 in FIG. 5 is a drain hole formed in the tub 60 so that the washing water in the tub 60 can be drained to the inlet of the flow path of the plasma discharge device 120.

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

First, when the laundry (m) is introduced into the drum 70 and the door 56 is closed and the drum washing machine is operated, the washing water is supplied through the water supply device 90, and the supplied laundry Water is contained in the inner lower portion of the tub 60, the plasma discharge device 120, and the circulation pump 130.

At this time, the lower portion of the drum 70 is immersed in the wash water (w), the wash water contained in the tub 60 is introduced into the drum 70 through the hand 74 of the drum 70 It is soaked in the laundry (m).

Then, when the motor 80 is driven so that the drum 70 is rotated, the laundry object m accommodated inside the drum 70 is lifted by the lift 76 and then dropped while washing water ( Due to the action of w) stains will fall.

On the other hand, the drum washing machine when the circulation pump 130 is driven during the water supply or washing process as described above, the washing water (w) in the tub 60 is the drain port 61 of the tub 60 After passing through the filter 142, foreign matters such as seams are filtered. The laundry water filtered with foreign matters flows into the washing water injection hole 122 and flows into the dielectric bucket 124 through the nozzle 129. It is injected into, and then passed through the inside of the dielectric canister 124 is guided to the first guide tube 144, and flows into the circulation pump 130 is pumped.

The wash water pumped from the circulation pump 130 is guided to the second guide tube 146 to the upper side of the gasket 64, and passes through the guide tube connecting portion 148 of the gasket 64. 64) The sprayed washing water is soaked in the washing material m inside the tub 60, in particular, the drum 70, and then passes through the manual work of the drum 70, and the tub Circulated to the inner bottom of 60.

The drum washing machine is operated when the high voltage generator 128 is operated together with the driving of the circulation pump 130 as described above. When the high voltage of about 5 to 7 kv is applied to the discharge electrode 126, the discharge electrode 126 and the laundry are washed. An electric field is formed between the water injection holes 122. At this time, the washing water sprayed into the dielectric barrel 124 through the nozzle 129 of the washing water injection hole 122 is plasma discharged by the electric field. Heated. The wash water heated by the plasma discharge exits the dielectric container 124 and passes through the first guide tube 144, and is then pumped by the circulation pump 130 to the second guide tube 146. It passes through the guide tube connector 148 of the gasket 64 in sequence, and is wetted with the laundry (m) inside the drum (70).

The washing water soaked in the laundry after heating as described above increases the solubility of the detergent and promotes the reaction with the time when it is buried in the laundry (m), thereby increasing the washing power of the laundry (m).

Here, when the drum washing machine is turned on together with the driving of the circulation pump 130 and the discharge of the plasma discharge device 120, the washing water w in the tub 60 is even faster. The heated wash water is immersed in the laundry m while being circulated as in the driving of the circulation pump 130 and the discharge of the plasma discharge device 120.

After the washing stroke is completed, the contaminated washing water in the tub 60 is drained to the outside through the drainage device 100.

Then, the drum washing machine is a rinsing stroke for rinsing the remaining foam in the laundry (m) bar, washing water (w) is supplied through the water supply device 90 is to be contained in the tub 60, When the motor 80 is driven and the drum 70 is rotated, the laundry m received inside the drum 70 is lifted by the lift 76, and the foam is rinsed off.

On the other hand, the drum washing machine is the washing water injection hole when the circulation pump 130 is driven and the plasma discharge device 120 is discharged as in the case of the washing stroke during the water supply or rinsing stroke as described above. The contaminated washing water (w) sprayed through the 122 is plasma discharged by an electric field formed between the discharge electrode 126 and the washing water injection hole 122, the detergent discharged plasma is removed from the detergent component Or the ion is changed to a harmless material having no polarity due to ultraviolet rays generated during plasma discharge or the like, and as shown in FIG. 7, the pH is reduced, and then the first guide tube 144 and the circulation pump 130 are removed. After passing through the guide tube connector 148 of the second guide tube 146 and the gasket 64 in sequence, the sample is immersed in the laundry (m) inside the drum 70 to rinse the laundry.

The washing water soaked in the laundry (m) after being purified as described above may improve the rinsing performance of the laundry (m) and reduce the rinsing time and the rinsing time.

After the rinsing stroke is completed, the contaminated washing water including foam is drained to the outside through the drainage device 100.

After several rinsing cycles as described above, the washing machine performs a dehydration stroke for draining the water to be washed (m). When the motor 80 rotates the drum 70 at a high speed, the washing water (m) is removed. Water in the centrifugal dehydration is discharged to the outside of the drum 70 through the hand 74 of the drum 70, and then collected to the inner bottom of the tub 60, through the drainage device 100 Drain to the outside.

8 is an enlarged view showing another example of the plasma discharge device of one embodiment of a drum washing machine according to the present invention.

In the plasma discharge device 120 according to the present embodiment, as shown in FIG. 8, a separate dielectric particle 150 is embedded in the dielectric cylinder 124. First and second dielectric particle support members 154 and 156 are disposed to be spaced inside the dielectric container 124 so that the dielectric particles 150 can be filled and the holes 152 are formed to allow washing water to pass therethrough. Since the configuration is the same, detailed description thereof will be omitted below.

When the separate dielectric particles 150 are disposed in the dielectric container 124, a discharge is induced between the discharge electrode 126 and the dielectric particles 150, so that a detergent for washing is more activated, and a pH change when rinsing is performed. There is an advantage to be promoted.

In the drum washing machine according to the present invention configured as described above, the washing water in the tub is discharged by the plasma discharge device to be heated or purified, and the heated or purified wash water is pumped by the circulation pump and circulated into the tub. As a result, the washing performance is improved, and the rinsing performance is improved by the purified water.

In addition, the plasma discharge device discharges the wash water drained from the tub and discharges the wash water sprayed through the ground, and passes through a dielectric through which the wash water sprayed from the wash water spray is passed, and the wash water sprayed from the wash water spray. It further comprises a discharge electrode mounted on the dielectric barrel, and a high voltage generator for applying a high voltage to the discharge electrode, there is an advantage that the structure is simple and easy plasma discharge of the wash water.

1 is a partially cutaway perspective view of a drum washing machine according to the prior art,

2 is an internal configuration of a drum washing machine according to the prior art,

3 is a partially cutaway perspective view of an embodiment of a drum washing machine according to the present invention;

4 is an internal configuration of a drum washing machine according to an embodiment of the present invention;

5 is an enlarged view showing a plasma discharge device of one embodiment of a drum washing machine according to the present invention;

6 is a graph comparing the temperature when the washing water is circulated during the washing stroke in the drum washing machine according to the present invention and when the plasma discharge is generated while circulating the washing water,

FIG. 7 is a graph comparing pH when washing water is circulated during a rinsing stroke in a drum washing machine according to an embodiment of the present invention, and when plasma discharge is generated while circulating the washing water.

8 is an enlarged view showing another example of the plasma discharge device of one embodiment of a drum washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

51: base 52: casing

54: entrance hall 56: door

60: Tub 62: Entrance Hall

64: gasket 66: damper

68: spring 70: drum

72: entrance hall 74: handmade

76: lift 80: motor

82: rotating shaft 90: water supply

100; Drainage 110: heater

120: plasma discharge device 122: washing water injection port

124: dielectric tube 126: discharge electrode

128: high voltage generator 130: circulation pump

142: filter 143: filter guide

144: first guide officer 146: second guide officer

148: guide connector 150: dielectric particles

154: first dielectric particle support member 156: second dielectric particle support member

m: laundry w: washing water

Claims (6)

A tub containing washing water; A drum rotatably positioned inside the tub, in which laundry is to be received, and a hand is formed; A motor for generating a driving force for rotating the drum; A plasma discharge device for plasma discharge the wash water drained from the tub; And a circulation pump configured to circulate the washing water discharged by the plasma discharge device to the inside of the tub. The method of claim 1, The plasma discharge device may discharge the washing water drained from the tub, discharge the ground water connected to the washing water jet connected to the ground, the dielectric passing through the washing water sprayed from the washing water jet, and the washing water sprayed from the washing water jet. Drum washing machine characterized in that it comprises a discharge electrode mounted to the dielectric barrel so as to. The method of claim 2, The plasma discharge device further comprises a high voltage generator for applying a high voltage to the discharge electrode. The method of claim 2, The plasma discharge device is a drum washing machine, characterized in that the dielectric particles are embedded in the dielectric container. The method of claim 4, wherein And the plasma discharge device further comprises first and second dielectric particle support members disposed spaced apart from the inside of the dielectric container so as to fill the dielectric particles and having holes formed therein to allow the washing water to pass therethrough. The method according to any one of claims 1 to 5, The drum washing machine is a drum washing machine, characterized in that the filter is mounted so that the foreign material at the inlet of the flow path of the plasma discharge device.