KR20120071528A - Washing machine - Google Patents

Abstract

PURPOSE: A washing machine capable of smoothly draining washing water to outside is provided to generate bubbles inside the washing water for improving washing efficiency. CONSTITUTION: A washing machine capable of smoothly draining washing water comprises the following: a pump(150) including a pump case and a motor; the pump case including a first pump inlet located on the higher position than an outlet pipe; the motor combined to one end of the pump case, for supplying power for pumping washing water inflowing through the first pump inlet; and a bubble generator(180) generating bubbles inside the pumped washing water.

Description

Washing machine {WASHING MACHINE}

      The present invention relates to a washing machine, and more particularly, to a structure for generating bubbles in the wash water flowing into the tub and the rotating tub of the washing machine and a structure for discharging the washing water in the tub and the rotating tub of the washing machine to the outside.

A washing machine is a machine for washing clothes using electric power, and typically includes a tub for storing wash water, a rotating tub rotatably installed in the tub, a pulsator rotatably installed at the bottom of the tub, and a rotating tub. And a motor for rotationally driving the pulsator.

When the rotating tub and the pulsator are rotated by the motor in the state in which the laundry and the washing water are put into the rotating tub, the pulsator stirs the laundry introduced into the rotating tub with the washing water to remove the stain on the laundry.

In general, in the case of a fully automatic washing machine, supply powder detergent to the washing tank at the beginning of the washing process or liquid detergent (rinse), etc. and store it in a container, and then automatically put it into the washing tank according to washing conditions such as washing stroke or rinsing stroke, and put the detergent into Decomposes or dissolves in water by the rotation of the pulsator, which takes some time. That is, the automatic washing machine has to decompose or dissolve the detergent only by the rotational force of the pulsator, thereby improving washing efficiency and improving washing quality.

One aspect of the present invention provides a washing machine having a structure capable of generating bubbles in the wash water.

Another aspect of the present invention provides a washing machine having a structure capable of smoothly draining the washing water to the outside of the washing machine.

According to an aspect of the present invention, a washing machine includes: a main body; a tub disposed in a vertical direction inside the main body; and an inflow pipe connected to a lower portion of the tub and an outflow pipe through which washing water introduced into the inflow pipe flows out. A flow path case; coupled to one end of the pump case and a pump case having a first pump inlet disposed at a position relatively higher than the outlet pipe, to provide power for pumping the wash water flowing into the first pump inlet; A pump having a motor; and a bubble generating unit generating bubbles in the wash water pumped by the pump; Characterized in that it comprises a.

The flow path case may further include a discharge pipe through which the wash water in the tub is discharged.

The outflow pipe further includes at least one foreign material inflow prevention rib for filtering foreign matters contained in the wash water introduced into the inflow pipe, and the foreign material inflow prevention rib may protrude from an inner circumferential surface of the outflow pipe.

The pump case may further include a second pump inlet connected to the lower end of the tub, and the second pump inlet may be disposed at a position relatively higher than the first pump inlet.

The upper portion of the pump case is provided with a foreign material inflow bumps for filtering the foreign matter contained in the wash water in the tub, the second pump inlet may be formed inside the foreign matter inflow bumps.

The pump case may further include a foreign matter inflow prevention wall for filtering foreign matter contained in the wash water introduced from the first pump inlet.

The foreign material inflow preventing wall may be provided at the center of the pump case, and the wash water introduced from the first pump inlet may flow into the foreign material inflow prevention wall and be pumped to the bubble generator.

The pump case includes a motor coupling part to which a motor for providing power for pumping the washing water introduced from the pump inlet is coupled, and a pump outlet for guiding the pumped washing water to the bubble generating part. Is provided on the outer peripheral surface of the motor coupling portion may be in communication with the motor coupling portion.

The pump case may include a first accommodating part accommodating the washing water flowing from the first pump channel or the second pump channel, one end of which is connected to the first accommodating part, and the other end of which is connected to the motor coupling part. A second accommodating part may be included, and the first accommodating part and the second accommodating part may be partitioned from each other by the foreign matter inflow preventing wall.

The foreign material inflow prevention wall may further include a residual water removal hole for removing the wash water remaining in the second accommodation portion.

The bubble generating unit may supply air to a first flow path through which the wash water pumped by the pump flows, a second flow path having a relatively smaller cross-sectional area than the first flow path, and wash water flowing through the second flow path. It may include an air inlet for communicating with the second flow path.

The discharge pipe may be provided with a valve so that the washing water flowing into the inlet pipe flows to either the discharge pipe or the outlet pipe.

It may further include a first connection hose for connecting the outlet pipe and the first pump inlet, and a second connection hose for connecting the pump outlet and the first flow path.

In addition, the washing machine according to the spirit of the present invention; and the tub disposed in the vertical direction inside the main body; and disposed in the lower portion of the tub, the inflow communicated with the tub so that the wash water in the tub flows in A flow passage including a discharge pipe for discharging the washing water introduced into the inlet pipe and the washing pipe introduced to the outside of the washing machine, and an outflow pipe for changing a moving direction of the washing water introduced into the inlet pipe; A pump including a pump case having a first pump passage disposed closer to the tub and a motor connected to one side of the pump case to pump washing water introduced through the first pump passage; and by the pump And a bubble generator having an air inlet for supplying air to the pumped wash water.

The pump case may further include a second pump passage communicating with a lower end of the tub and provided above the first pump passage.

The pump case may further include a foreign matter inflow prevention wall for filtering foreign matters contained in the wash water introduced through the first pump passage.

Residual water removal holes may be provided on the outer circumferential surface of the foreign matter inflow prevention wall so that the washing water remaining inside the foreign matter inflow prevention wall flows to the discharge pipe.

The outflow pipe may further include at least one foreign material inflow prevention rib protruding from the inner circumferential surface of the outflow pipe to filter foreign matter contained in the wash water.

The bubble generating unit may include a washing water channel through which the washing water pumped by the pump flows, and an air channel communicating with the washing water channel to supply air to the washing water flowing through the washing water channel.

In addition, the control method of the washing machine according to the spirit of the present invention is a main body, a tub disposed in the vertical direction inside the main body, a discharge pipe communicating with the tub, a pump disposed under the tub, by the pump In the control method of the washing machine comprising: detecting the water level of the washing water in the process of supplying the washing water into the tub; And, into the tub Determining whether drainage of the supplied wash water is necessary; and closing the discharge pipe to control the wash water to be transferred to the pump when the level of the wash water rises above a predetermined height. If it is determined that drainage is necessary to open the discharge pipe to control the washing water is discharged to the outside of the washing machine through the discharge pipe The features.

According to embodiments of the present invention, washing performance is improved by generating bubbles in the washing water flowing into the tub.

In addition, the wash water is quickly drained out of the washing machine.

1 is a sectional view of a washing machine according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the tub, the flow path case, the pump, and the bubble generator in FIG. 1;
FIG. 3 is a bottom view illustrating the tub of FIG. 1 as viewed from the bottom; FIG.
4 is a partial cross-sectional view showing an extract of the flow path case in FIG.
5 is a partial cross-sectional view showing an extract of the pump case in FIG.
6 is a cross-sectional view taken from the bubble generating portion in FIG.
7 is a view showing the flow of the wash water in the case of generating bubbles in the wash water.
8 is a view showing the flow of the wash water when the wash water is drained.

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

1 is a cross-sectional view of a washing machine according to an embodiment of the present invention.

As shown in FIG. 1, the washing machine 1 includes a main body 10 forming an external appearance, a tub 20 disposed inside the main body 10, and a rotation rotatably disposed in the tub 20. The tank 30 and the drive device 40 is disposed below the tub 20 to rotate the rotary tub (30).

The upper part of the main body 10 is provided with a cover 15 formed with a laundry inlet 14 to inject laundry into the inside of the rotating tub 30, the cover 15 is a door for opening and closing the laundry inlet 14 (16) is provided.

Suspension device 21 for suspending and supporting the tub 20 to the main body 10 is connected to the outside of the tub 20, the top of the tub 20, the annular tub cover 70 covering the tub 20 Is combined.

The rotating tub 30 is rotatably disposed in the tub 20 and includes a plurality of through holes 31.

The pulsator 35 is rotatably installed on the bottom of the rotating tub 30, and the pulsator 35 serves to stir the laundry introduced into the rotating tub 30 together with the wash water.

The driving device 40 includes a clutch 41 for rotating the rotating tub 30 and the pulsator 35 and a driving motor 43 for driving the clutch 41. The driving motor 43 includes a pulley and The belt 41 is connected to the clutch 41 to transmit the driving force to the rotating tub 30 and the pulsator 35.

The upper portion of the tub 20 is provided with a water supply device 50 for supplying the wash water to the tub (20). The water supply device 50 includes a water supply valve 53 for controlling the water supply and a water supply pipe 51 for connecting the water supply valve 53 and the detergent supply device 60.

One side of the water supply pipe 51 is connected to an external water supply source (not shown), and the other side of the water supply pipe 51 is connected to the detergent supply device 60.

The detergent supply device 60 includes a case 61 provided inside the cover 15 and a detergent container 63 detachably mounted to the case 61 and storing each detergent. The bottom of the case 61 is formed with a discharge port 65 for discharging the wash water in which the detergent is dissolved.

Water supplied through the water supply pipe 51 is supplied into the tub 20 together with the detergent via the detergent supply device 60.

FIG. 2 is a partial cross-sectional view of the tub, the flow path case, the pump, and the bubble generator in FIG. 1, and FIG. 3 is a bottom view of the tub of FIG. 1, viewed from the bottom, and FIG. 4 is FIG. In Figure 5 is a partial cross-sectional view showing an extract of the flow case, Figure 5 is a partial cross-sectional view showing an excerpt of the pump case in Figure 2, Figure 6 is a cross-sectional view showing an excerpt of the bubble generating portion in FIG.

2 to 6, the lower portion of the tub 20 and the flow path case 120 for guiding the washing water in the tub 20 to drain out of the washing machine 1 or flow into the tub 20 again; , The pump 150 for pumping the wash water passing through the flow path case 120, and the bubble generator 180 for supplying air to the wash water pumped by the pump 150 generates a bubble.

The flow path case 120 includes an inlet pipe 122 connected to the tub 20, an outlet pipe 124 for guiding the washing water introduced into the inlet pipe 122 to the pump 150, and an inlet pipe 122. It is provided with a discharge pipe 126 for discharging the washing water introduced into the outside of the washing machine (1).

The inflow pipe 122 is coupled to be in communication with the lower end of the tub 20 to allow the wash water in the tub 20 to flow into the flow path case 120.

The wash water introduced into the flow path case 120 through the inflow pipe 122 flows to the outflow pipe 124 or the discharge pipe 126 through the branch 128.

Outflow pipe 124 is to change the direction of the flow of the wash water introduced through the inlet pipe 122 to guide the pump 150. The outlet pipe 124 includes at least one foreign matter inflow prevention rib 132 for filtering foreign matter such as lint which may be included in the wash water. The foreign matter inflow prevention rib 132 protrudes from the inner circumferential surface of the outflow pipe 124 to a length of about 1/2 of the diameter of the outflow pipe 124 and is disposed in parallel at regular intervals. The foreign material inflow prevention rib 132 provided as described above filters out foreign substances such as lint that may be included in the washing water without affecting the flow of the washing water passing through the outflow pipe 124. In addition, the foreign matter inflow prevention rib 132 protrudes a predetermined length from the upper inner circumferential surface of the outlet pipe 124, so that foreign matters contained in the wash water drained in the process of draining the wash water are not filtered by the foreign matter inflow prevention rib 132. The discharge pipe 126 may be naturally discharged.

The discharge pipe 126 discharges the washing water introduced through the inlet pipe 122 to the outside of the washing machine 1.

The discharge pipe 126 is further provided with a valve 134. When the discharge pipe 126 is opened in the process of moving the wash water in the tub 20, the wash water does not flow to the outflow pipe 124 and is drained through the discharge pipe 126. The valve 134 closes the discharge pipe 126 in the process of moving the wash water to prevent the washing water from being drained through the discharge pipe 126.

The pump 150 is connected to one end of the pump case 152 and the pump case 152 which forms a flow path for washing water, and provides a motor 154 that provides power for pumping the washing water inside the pump case 152. Equipped.

The pump case 152 has a first pump inlet 161 through which the wash water passing through the outlet pipe 124 flows, a second pump inlet 162 communicating with a lower end of the tub 20, and a first pump inlet 161. Foreign matter inflow prevention wall 164 for filtering foreign matters contained in the wash water introduced from the water), the first accommodating part 171 and the second accommodating part 172 partitioned by the foreign matter inflow preventing wall 164, A motor coupling part 174 for coupling the pump case 152 and the motor 154 and a pump outlet 176 provided on an outer circumferential surface of the motor coupling part 174 are provided.

The first pump inlet 161 is configured to guide the wash water so that the wash water passing through the outlet pipe 124 may be introduced into the pump case 152. The first pump inlet 161 is disposed at a relatively higher position than the outlet pipe 124. . The first pump inlet 161 is disposed at a higher position than the outlet pipe 124 so that the washing water can be smoothly drained to the outside of the washing machine. Details will be described later.

 The second pump inlet 162 is provided at the upper portion of the pump case 152 so that the lower end of the tub 20 and the pump case 152 can communicate with each other, and the wash water in the tub 20 directly flows into the pump case 152. To be possible. The second pump inlet 162 is disposed at a higher position than the first pump inlet 161. The washing water flowing directly into the pump case 152 through the second pump inlet 162 in the process of draining the washing water pressurizes the washing water inside the pump case 152 to open the first pump inlet 161. To flow smoothly through the flow through the case (120).

Meanwhile, the first pump inlet 161 and the second pump inlet 162 respectively form a flow path for washing water to flow into the pump case 152, respectively. )Can be seen as.

Foreign substances such as lint included in the wash water flowing into the pump case 152 through the second pump inlet 162 are filtered by the foreign matter inflow prevention jaw 163. The foreign material inflow prevention jaw 163 protrudes upward from the upper portion of the pump case 152 to the inside of the tub 20, and the second pump inlet 162 is formed inside the foreign matter inflow prevention jaw 163.

Foreign material inflow prevention wall 164 is provided in the shape of a cylindrical hollow inside the center of the pump case 152, the foreign matter contained in the wash water introduced from the first pump inlet 161 is connected to the motor 154. To prevent flow into the rotating impeller (not shown). As described above, the foreign matter contained in the wash water in the tub 20 is first filtered by the foreign matter inflow prevention rib 132 provided in the outflow pipe 124, and filtered by the foreign matter inflow prevention rib 132. Foreign matter that is not supported is secondarily filtered by the foreign matter inflow preventing wall 164.

The first accommodating part 171 and the second accommodating part 172 in the pump case 152 are partitioned from each other by the foreign matter inflow preventing wall 164.

The first accommodating part 171 is a space formed outside the foreign matter inflow preventing wall 164 and is formed in a shape surrounding the second accommodating part 172 and includes a first pump inlet 161 or a second pump inlet ( The washing water flowing from the 162 is guided to be introduced into the second receiving portion 172.

The second accommodating part 172 is a space formed inside the foreign matter inflow preventing wall 164, one end of which is in communication with the first accommodating part 171, and the other end of which is in communication with the motor coupling part 174. The wash water introduced into the unit 171 is guided to be introduced into the motor coupling unit 174.

A residual water removal hole 173 communicating with the second accommodating part 172 is provided below the foreign matter inflow preventing wall 164. Residual water removal hole 173 guides the remaining water remaining in the second accommodating part 172 to the first pump inlet 161 after draining the wash water so that it can be drained through the discharge pipe 126. do.

The motor coupling part 174 is provided at one end of the pump case 152, and the motor coupling part 174 includes a motor 154 that provides power for pumping the washing water flowing from the second accommodating part 172. Combined. An impeller (not shown) is coupled to the rotating shaft of the motor 154, and the impeller provides a transfer power so that the washing water flowing into the motor coupling part 174 can be transferred to the bubble generator 180.

A pump outlet 176 is provided on the outer circumferential surface of the motor coupling part 174 to communicate with the motor coupling part 174 to guide the pumped wash water to the bubble generator 180.

The bubble generating unit 180 includes a washing water flow passage 184 that is a passage through which the washing water flows and an air inlet 190 that supplies air to the washing water flowing through the washing water flow passage 184.

The washing water channel 184 has a substantially circular cross section, is formed through the inside of the bubble generating unit 180, and includes a first channel 181 and a second channel 182.

The first channel 181 extends by a predetermined length inside the bubble generator 180, and the second channel 182 communicates with the first channel 181 and the diameter D1 of the first channel 181. It has a relatively small diameter (D2) compared to the) is formed to extend by a predetermined length inside the bubble generating unit 180.

A diameter reducing unit 183 is provided between the first flow passage 181 and the second flow passage 182 to reduce the transfer resistance received in the process of washing water moving from the first flow passage 181 to the second flow passage 182. .

The air inlet 190 penetrates through the inside of the bubble generating unit 180 from the outer circumferential surface of the bubble generating unit 180 and communicates with the second channel 182. In order to smoothly flow the air, the diameter of the air inlet 190 is preferably smaller than the diameter D2 of the second channel 182. An air inlet hose 192 is coupled to one end of the air inlet 190, and the air inlet hose 192 is coupled to the tub cover 70 as shown in FIG. 1 so that the air inside the tub cover 70 is air inlet. (190) to be introduced.

When the washing water flowing through the first passage 181 flows into the second passage 182 having a smaller diameter than the first passage 181, the speed of the washing water introduced into the second passage 182 is the first passage 181. It will be faster than when it flows, and the pressure will decrease as the speed increases.

At this time, the pressure difference between the second passage 182 section and the outside of the forward bubble generating unit 180 is generated as the pressure decreases in the second passage 182 section, and the bubble generating unit 180 is caused by the pressure difference. Outside air is introduced into the second passage 182 through the air inlet 190 and mixed with the wash water.

This phenomenon is called the Venturi effect, which means that when a fluid passes through different currents or flow paths with different cross-sectional areas, the velocity of the fluid increases in proportion to its square, and the pressure decreases in proportion to the square of the increased velocity. Effect.

As such, the insides of the bubble generator 180 may be configured to have flow paths having different diameters, and the air inlet 190 may be added to supply air to the wash water, thereby generating bubbles (bubble). have.

One end of the bubble generating unit 180 is coupled to the lower end of the tub 20, the second passage 182 is in communication with the lower end of the tub 20, the wash water past the second passage 182 is bubbled as described above It is introduced into the tub 20 in a state including.

The outlet pipe 124 and the first pump inlet 161 may be connected to the first connection hose 142, and the pump outlet 176 and the first channel 181 may be connected to the second connection hose 144. . The first connection hose 142 and the second connection hose 144 prevent leakage of water in the process of washing water. Since the first connection hose 142 and the second connection hose 144 are made of a synthetic resin material such as synthetic rubber, the first connection hose 142 and the second connection hose 144 are stably transported to the wash water without being damaged even when they are hit by the tub 20 by external impact or internal vibration. Can be.

Hereinafter, a process in which bubbles are generated in the wash water or the wash water is drained.

FIG. 7 is a diagram illustrating the flow of wash water when bubbles are generated in the wash water, and FIG. 8 is a diagram illustrating the flow of wash water when the wash water is drained.

As shown in FIG. 7, the wash water in the tub 20 is introduced into the flow path case 120 through the inflow pipe 122. At this time, the valve 134 installed in the discharge pipe 126 closes the discharge pipe 126 so that the washing water introduced through the inlet pipe 122 is not drained through the discharge pipe 126. The washing water introduced through the inflow pipe 122 passes through the outflow pipe 124 and the first connection hose in the state in which foreign matter is first filtered by the foreign matter inflow prevention rib 132 provided in the outflow pipe 124. It is introduced into the pump case 152 through the 142 and the first pump inlet 161.

The washing water introduced into the pump case 152 is secondarily filtered by the foreign matter inflow preventing wall 164 while passing through the first receiving part 171, and is coupled to the motor through the second receiving part 172. Flows into section 174. Meanwhile, the wash water inside the tub 20 flows directly into the first accommodating part 171 of the pump case 152 through the second pump inlet 162 without directly passing through the flow case 120. After joining the wash water introduced into the first accommodating part 171 may be introduced into the motor coupling part 174 through the second accommodating part 172. The wash water introduced into the motor coupling part 174 is transferred to the bubble generator 180 through the pump outlet 176 by the impeller.

The wash water transferred to the bubble generator 180 is sprayed back into the tub 20 while passing through the first passage 181 and the second passage 182 and including the bubbles.

As shown in FIG. 8, when the washing water is drained to the outside of the washing machine 1, the washing water inside the tub 20 is drained through the discharge pipe 126 or drained through the second pump inlet 162. do. At this time, the valve 134 opens the discharge pipe 126 so that the washing water passing through the inlet pipe 122 can be drained through the discharge pipe 126.

The washing water introduced through the second pump inlet 162 provided at the upper portion of the pump case 150 applies pressure to allow the washing water inside the pump case 150 to flow toward the first pump inlet 161. Washing water introduced into the first pump inlet 161 may flow smoothly to the outlet pipe 124 located lower than the first pump inlet 161 by the effect of gravity.

The wash water passing through the outlet pipe 124 is drained to the outside of the washing machine 1 through the discharge pipe 126.

Meanwhile, the remaining water remaining in the second accommodating part 172 after draining the washing water is washed by the first pump inlet 161 and the discharge pipe 126 by the residual water removing hole 173. This can be drained out.

1: washing machine 20: tub
30: rotating tank 40: driving device
50: water supply device 60: detergent supply device
70: tub cover 120: euro case
124: outlet pipe 126: discharge pipe
132: foreign material inflow prevention rib 150: pump
152: pump case 154: motor
161: first pump inlet 162: second pump inlet
164: foreign material inflow prevention wall 180: bubble generating part
181: first euro 182: second euro
184: wash flow path 190: air flow path
192: air inlet hose

Claims (20)

main body;
Tub disposed in the vertical direction inside the main body; And,
A flow path case having an inflow pipe connected to the lower portion of the tub and an outflow pipe through which the washing water introduced into the inflow pipe flows out;
A pump case having a first pump inlet disposed at a position relatively higher than the outlet pipe and a motor coupled to one end of the pump case to provide power for pumping the wash water flowing into the first pump inlet; Pump;
A bubble generator for generating bubbles in the wash water pumped by the pump;
Wherein the washing machine comprises a washing machine. The method of claim 1,
The euro case,
Washing machine further comprises a discharge pipe for discharging the washing water in the tub. The method of claim 1,
The outlet pipe further includes at least one foreign material inflow prevention rib for filtering the foreign matter contained in the wash water introduced into the inlet pipe,
The foreign material inflow prevention ribs protrude from the inner circumferential surface of the outflow pipe. The method of claim 1,
The pump case further includes a second pump inlet connected to the bottom of the tub,
And the second pump inlet is disposed at a position relatively higher than the first pump inlet. The method of claim 4, wherein
The upper portion of the pump case is provided with a foreign material inflow prevention jaw for filtering foreign matter contained in the wash water in the tub,
The second pump inlet is formed in the washing machine, characterized in that formed on the inside of the foreign matter inlet. The method of claim 1,
The pump case washing machine further comprises a foreign matter inflow prevention wall for filtering foreign matter contained in the wash water introduced from the first pump inlet. The method of claim 6,
The foreign material inflow prevention wall is provided in the center of the pump case,
Washing water introduced from the first pump inlet is introduced into the inside of the foreign material inflow preventing wall is pumped to the bubble generating unit. The method of claim 1,
The pump case,
A motor coupling part to which a motor providing power for pumping the washing water introduced from the pump inlet is coupled;
A pump outlet for guiding pumped wash water to the bubble generator,
The pump outlet is provided on the outer peripheral surface of the motor coupling portion washing machine, characterized in that in communication with the motor coupling portion. The method of claim 8,
The pump case may include a first accommodating part accommodating the washing water flowing from the first pump channel or the second pump channel, one end of which is connected to the first accommodating part, and the other end of which is connected to the motor coupling part. Including a second accommodating part,
And the first accommodating part and the second accommodating part are partitioned from each other by the foreign matter inflow preventing wall. 10. The method of claim 9,
The foreign material inflow prevention wall washing machine further comprises a residual water removal hole for removing the wash water remaining in the second accommodation portion. The method of claim 1,
The bubble generator,
A first flow path through which the wash water pumped by the pump flows in;
A second passage having a smaller cross-sectional area than the first passage,
And an air inlet communicating with the second flow path to supply air to the wash water flowing through the second flow path. The method of claim 2,
And a valve is provided at the discharge pipe so that the washing water flowing into the inlet pipe flows to either the discharge pipe or the outlet pipe. 10. The method of claim 9,
A first connection hose connecting the outlet pipe and the first pump inlet,
Washing machine further comprises a second connecting hose connecting the pump outlet and the first flow path. main body;
Tub disposed in the vertical direction inside the main body; And,
Disposed in the lower portion of the tub, the inlet pipe communicating with the tub so that the wash water in the tub and the discharge pipe for discharging the wash water introduced into the inlet pipe to the outside of the washing machine and the inlet pipe A flow path case including an outlet pipe disposed to be spaced apart from the bottom of the tub by a direction of movement of the wash water; and
A pump including a pump case having a first pump passage disposed closer to the tub than the outlet pipe, and a motor connected to one side of the pump case to pump washing water introduced through the first pump passage; ,
A bubble generator having an air inlet for supplying air to the wash water pumped by the pump;
Wherein the washing machine comprises a washing machine. The method of claim 14,
The pump case is in communication with the lower end of the tub, characterized in that the washing machine further comprises a second pump flow path provided above the first pump flow path. The method of claim 14,
The pump case washing machine further comprises a foreign matter inflow prevention wall for filtering the foreign matter contained in the wash water introduced through the first pump passage. The method of claim 16,
Washing machine, characterized in that the remaining water removal hole is provided on the outer circumferential surface of the foreign matter inflow prevention wall so that the wash water remaining inside the foreign matter inflow prevention wall flows to the discharge pipe. The method of claim 14,
The outflow pipe further comprises at least one foreign material inflow prevention rib protruding from the inner circumferential surface of the outflow pipe to filter foreign matter contained in the wash water. The method of claim 14,
The bubble generator,
A washing water flow path through which the washing water pumped by the pump flows;
And an air flow passage communicating with the wash water flow passage to supply air to the wash water flowing through the wash water passage. Bubble generating unit for generating bubbles in the main body, the tub disposed in the vertical direction inside the main body, the discharge pipe communicating with the tub, the pump disposed below the tub, and the wash water pumped by the pump In the control method of the washing machine comprising;
Sensing the level of the wash water in the process of supplying the wash water into the tub;
Determining whether drainage of the wash water supplied into the tub is necessary;
When the water level of the washing water rises above a certain height, the discharge pipe is closed to control the washing water to be transferred to the pump, and when it is determined that drainage of the washing water is necessary, the discharge pipe is opened to open the washing water through the discharge pipe. Control method of the washing machine characterized in that it is controlled to be discharged to the outside of the washing machine.

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