KR20170111483A - Washing machine - Google Patents

Abstract

The present invention provides a washing machine comprising: a tub provided inside a cabinet; A circulation pump circulating the wash water discharged from the tub back into the tub; And aeration module for mixing the compressed air with the washing water supplied from the circulation pump and sending the mixed fluid mixed with the compressed air and the washing water to the inside of the tub.

Description

Washing machine {WASHING MACHINE}

The present invention relates to a washing machine for circulating washing water to improve washing performance.

Generally, a washing machine generally includes a drum and a washing machine. The drum is mechanically driven by a washing object and a washing machine. The drum is mechanically driven to generate mechanical energy such as frictional force or impact energy between the washing water and the laundry, It is a household appliance that removes pollution.

Such a washing machine can be largely classified into a pulsator type using a water stream by the rotation of a pulsator and a drum type using an impact force due to the vertical drop of the washing object due to rotation of the drum.

In the case of the conventional drum type washing machine, the drum rapidly rotates instantly and rotates in the forward / reverse direction, so that the detergent dissolution is performed by friction between the drum and water.

In recent years, various devices have been additionally provided to increase the washing power of the washing machine. For example, there is a washing water circulation and spraying device.

13 is a sectional view showing a drum type washing machine provided with a conventional washing water circulating apparatus.

The drum type washing machine comprises a tub 2 provided inside the cabinet 1, a drum 3 rotatably provided in the tub 2, and a drum 3 rotatably disposed inside the tub 2, A circulation pump 4 for circulating it again, and a circulation hose 5 for circulating the wash water. One side of the circulating hose 5 communicates with the bottom of the tub and the other side of the circulating hose 5 communicates with the inside of the upper portion of the gasket 6 of the tub 2.

The washing water discharged from the bottom of the tub 2 is pumped by the circulation pump 4 and rises along the circulation hose 5 to be supplied again to the inside of the tub 2 to be sprayed onto the laundry, The laundry object is wetted. In addition, by increasing the frictional force by the water flow, the washing power and the rinsing power can be increased, and the amount of washing water used can be reduced.

However, in the case of the circulation pump used in the conventional washing machine, there are the following problems.

First, since the low-pressure pump having a low discharge pressure is used to lower the pump unit price, the jetting power of the washing water circulated to the drum by the circulation pump is weak.

Secondly, in order to further improve the washing power, it is preferable that the washing water circulated to the drum 3 is sprayed in an atomized state. However, when the spraying force is weak, sufficient atomization can not be attained.

Thirdly, when a large number of objects to be laundered occupy most of the internal space volume of the tub and the drum, for example, 2/3 or more, and the direction of spraying the washing water is limited to one, the object to be laundered It takes a long time to get wet quickly and there is a limit to moisturize the can evenly.

Fourth, since the concentration of the detergent dissolved in the washing water is low when the circulating washing water is low, there is a problem that the use amount of the washing water must be increased in order to increase the washing power.

D1: Published Patent Application No. 10-2011-0098485 (published on 09.01.2011)

Accordingly, it is a first object of the present invention to provide a washing machine capable of strongly maintaining the spraying power of washing water circulated even by using a low-pressure pump.

A second object of the present invention is to provide a washing machine capable of increasing washing power by spraying washing water circulated in a drum in an atomized state by a strong spraying force, thereby enhancing the washing force.

A third object of the present invention is to provide a washing machine capable of shortening the time for wetting the laundry by washing water by spraying the washing water supplied to the laundry object in various directions.

A fourth object of the present invention is to provide a washing machine in which washing water having a high detergent concentration can be sprayed onto a laundry object even if a small amount of washing water is used.

In order to maintain the spraying force of the washing water as the first object of the present invention, it is possible to increase the flow rate and pressure of the washing water by mixing compressed air with circulating washing water.

The second object of the present invention is to pass the fluid from the large diameter to the small diameter of the air mixer in order to atomize the washing water in the atomized state to convert the abrupt change of the flow velocity into the pressure energy by the water hammer phenomenon,

A third object of the present invention is to spray the mixed fluid of compressed air and washing water in various directions and angles through a plurality of nozzles in order to shorten the wetting time of the fabric (laundry object).

The fourth object of the present invention can be achieved by spraying washing water in an atomized state, and even if a small amount of washing water is sprayed, the washing water can be sprayed with a high concentration of detergent.

According to another aspect of the present invention, there is provided a washing machine comprising: a tub disposed inside a cabinet; A circulation pump circulating the wash water discharged from the tub back into the tub; And an aeration module for mixing the compressed air with the washing water supplied from the circulation pump and sending the mixed fluid mixed with the compressed air and the washing water to the inside of the tub.

According to one embodiment of the present invention, the aeration module includes: a housing having an outside air inlet, an inlet and an outlet; An air mixer unit which is formed at one side of the inside of the housing and mixes the washing water and the compressed air introduced through the inlet and discharges the mixed fluid of the washing water and the compressed air to the outside through the outlet; And an air pump unit formed on the other side of the inside of the housing, for compressing outside air flowing through the outside air inlet and sending the compressed air to the air mixer unit.

According to one example related to the present invention, the air pump unit comprises: an electromagnet portion; An operating portion disposed to face the electromagnetic portion and having a permanent magnet and reciprocating by an electromagnetic force generated by interaction with the electromagnetic portion; And a compression unit interlocked with the operation unit and compressing external air.

According to an embodiment of the present invention, the electromagnet portion includes: a coil winding portion having a coil wound to generate a magnetic field by applying an electric current; And a core portion having a plurality of protrusions, at least one protrusion being inserted into the coil winding portion and being magnetized by the magnetic field.

According to an embodiment of the present invention, the actuating part includes: a magnet mounting part in which the permanent magnet is mounted so as to face the electromagnetic part; And a moving part provided in the magnet mounting part and moving in a direction moving toward or away from the compression part.

According to an embodiment of the present invention, the compression unit may include: a first compression unit disposed on one side of the operation unit in a moving direction of the operation unit; And a second compression unit disposed on the other side of the operation unit so as to face the first compression unit, wherein the first compression unit and the second compression unit can alternately repeat compression and suction of air.

According to an embodiment of the present invention, the compression unit includes: a compression unit main body having a suction port and a discharge port and having a compression chamber therein; And a diaphragm provided in the compression chamber and compressing the air filled in the compression chamber by the power transmitted from the operation unit or sucking air into the compression chamber.

According to an embodiment of the present invention, the compression unit main body includes: a suction chamber which is separated from the compression chamber by a first partition and stores external air introduced through the suction port; A plurality of suction holes formed at one side of the first partition to communicate with the suction chamber; A first check valve that opens and closes the plurality of suction holes by a pressure difference between the suction chamber and the compression chamber and limits the flow of the external air to the compression chamber; A discharge chamber which is separated from the compression chamber by the first partition, is separated from the suction chamber by a second partition, and stores compressed air to be discharged through the discharge port; A plurality of discharge holes formed on the other side of the first partition to communicate with the discharge chamber; And a second check valve that opens and closes the plurality of discharge holes by a pressure difference between the discharge chamber and the compression chamber and limits the flow of the compressed air to the discharge chamber.

According to an embodiment of the present invention, the air mixer unit includes: a partition wall partitioning the interior of the housing so as to have a separate internal space from a space for accommodating the air pump unit in the housing; And a mixing chamber for mixing the washing water flowing through the inlet and the inlet hole with the compressed air flowing through the air inlet, the inlet hole, the outlet hole and the air inlet.

According to an embodiment of the present invention, the mixing chamber is provided separately from the inner space of the partition wall for mixing the washing water and the compressed air, and the air mixer unit is provided with a washing water inlet And a bypass channel formed between the partition wall and the mixing chamber to partially bypass the mixing chamber.

According to an embodiment of the present invention, the mixing chamber is formed such that the back surface is spaced apart from the boundary wall in the direction of the intake of the washing water flowing through the inlet, and both side surfaces are spaced apart from the boundary wall in a direction crossing the intake direction .

According to one embodiment of the present invention, the inlet holes are formed in a lower portion of the mixing chamber, and the outlet holes are formed in a plurality of the upper portions of the mixing chamber, the air inlet passes through the upper surface of the mixing chamber And may extend below the mixing space.

According to an embodiment of the present invention, the inlet port is formed in the lower portion of the housing in communication with the inlet hole and in a direction intersecting the direction of the intake of the washing water flowing through the inlet hole, and the outlet is communicated with the outlet hole And may be formed on the upper part of the housing in the same direction as the outflow direction of the mixed fluid flowing out through the outflow hole.

According to an embodiment of the present invention, the housing includes: a lower main body having the outside air inlet and the inlet; And an upper cover having the outlet and covering an upper portion of the lower main body.

According to an embodiment of the present invention, the upper cover includes an exhaust flow path portion,

The exhaust flow path portion may include an exhaust flow path portion in which one side communicates with the air pump unit and the other side communicates with the air mixer unit so that the compressed air flows into the air mixer unit.

According to an embodiment of the present invention, the exhaust passage portion may include: a first flow path formed in a first direction across opposite side surfaces of the upper cover; And a second flow path extending in a second direction intersecting with the first direction in the first flow path, wherein the first flow path and the second flow path are connected to each other by a bifurcated compressed air May be introduced into both ends of the first flow path and be moved in the second flow path and may be merged in the second flow path and transferred to the air inflow section of the air mixer unit.

According to one embodiment of the present invention, a plurality of nozzles for spraying the mixed fluid dispensed from the aeration module into the tub; And a distribution channel for guiding the mixed fluid sent out from the aeration module to the plurality of nozzles.

According to the present invention configured as described above, the following effects can be obtained.

First, before the washing water circulated by the circulating pump is sprayed to the inside of the drum, the washing water and the compressed air are mixed by the air mixer to increase the flow rate in the circulating flow path, thereby increasing the spraying power of the washing water.

Secondly, by injecting a mixed fluid mixed with compressed air and washing water in an air mixer from a large diameter to a small diameter, the impact force can be increased by applying an impact force to water by a water hammer effect.

Third, by mixing the compressed air with the washing water and by the water hammer effect, the washing water can be increased by spraying the laundry detergent mixed with a high concentration of detergent by breaking the particle size of the washing water small.

Fourth, as the circulation direction of the washing water is varied, the time required for wetting the cloth can be shortened.

Fifth, even with a small amount of water, a high concentration of the detergent can be uniformly sprayed on the laundry subject to washing.

Sixth, the spraying duration of washing water can be increased even with a small amount of water consumption.

Seventh, since the air pump unit and the air mixer unit are integrally provided in one housing, the structure is simplified and the number of components can be reduced.

Eighth, since there is only one aeration module, it is easy to connect and disassemble the aeration module with the circulation channel and plural nozzles.

Ninth, an air pump and an air mixer are installed inside a single housing, and even when the performance of the aeration system is tested, it is possible to perform the performance test with the aeration module separately from the washing machine.

In the tenth, when the air pump and the air mixer are mounted inside the cabinet, the space for the arrangement can be efficiently utilized.

Eleventh, since the air pump is mounted inside one housing, it is easy to reduce the vibration generated in the air pump.

Twelfth, vibration can be minimized by applying diaphragm type air pump using electromagnet.

Third, by providing a separate bypass passage in the interior of the air mixer, the water pressure of the washing water flowing into the mixing chamber is lowered even with the same air pump capacity, so that the amount of air injected is increased relative to the washing water, It is possible to effectively increase the spraying power by increasing the water hammer phenomenon caused by the mixing of water.

1 is a front view of a washing machine to which an aeration module according to the present invention is applied.
2 is a perspective view of FIG.
3 is a perspective view showing the aeration module of Fig.
FIG. 4A is an exploded perspective view showing an internal configuration of the aeration module of FIG. 3. FIG.
FIG. 4B is an exploded perspective view showing the internal structure of the air mixer unit in FIG. 4A. FIG.
FIG. 5 is a plan view showing the internal structure of the lower body in FIG.
6 is a plan view of the upper cover in Fig.
7 is an exploded perspective view showing the configuration of the air pump unit in Fig.
FIG. 8A is a plan view of the air pump unit of FIG. 7; FIG.
8B and 8C are sectional views for explaining the operation of the air pump unit.
9 is a conceptual diagram showing that the wash water in the check valve according to the present invention is reversed in the air mixer.
10 is a conceptual diagram for explaining the water hammer effect of the air mixer according to the present invention.
11A is a graph showing a pressure change according to air flow rate to explain an air mixing effect of the present invention.
FIG. 11B is a graph showing changes in flow rate according to the air flow rate to explain the air mixing effect of the present invention. FIG.
12 is an AA cross-sectional view showing a flow path of the fluid in the aeration module of Fig. 5;
13 is a sectional view showing a drum type washing machine provided with a conventional washing water circulating apparatus.

Hereinafter, a washing machine according to the present invention will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

1 is a front view of a washing machine to which a aeration module 200 according to the present invention is applied, and Fig. 2 is a perspective view of Fig.

The washing machine comprises a cabinet (100), a tub (101), a circulation pump (103) and aeration module (200).

The cabinet 100 forms the appearance and appearance of the washing machine. The cabinet 100 may have a rectangular parallelepiped shape. The cabinet 100 includes a front cover forming a front surface of the washing machine, a side cover forming both sides of the washing machine, a back cover forming a rear surface of the washing machine, a top cover forming an upper surface of the washing machine, And a base cover for forming the base cover. At this time, for the rigidity of the washing machine, the side cover and the back cover have one side (ONE PIECE) and can have a 'C' shape when viewed from the top cover.

A tub 101 is provided inside the cabinet 100. The tub 101 stores wash water. The tub 101 may be cylindrical. The tub 101 may be disposed inside such that the longitudinal centerline of the tub 101 faces the front and rear surfaces of the cabinet 100. [ The longitudinal center line of the tub 101 may be inclined within a range of 2 to 10 degrees with respect to the horizontal plane. An inlet may be formed on the front surface of the tub 101, and a rear surface of the tub 101 may be closed. The inlet of the tub 101 may be inclined so as to be positioned higher than the rear surface.

A drum (108) is provided inside the tub (101). The drum 108 is rotatable by a driving unit such as a motor or the like. The driving unit may be installed on the back surface of the tub 101. The motor may include a rotor having a rotation shaft therein and rotating the rotation axis, and a stator generating a rotation force by electromagnetic interaction between the rotor and the rotor.

A lifter 101b may be provided inside the drum 108. [ The lifter 101b serves to raise the cloth so that the cloth (laundry object) put into the drum 108 rotates together with the inner circumferential surface of the drum 108 in the circumferential direction and can be dropped by gravity.

A plurality of through holes are formed in the circumferential surface of the drum 108 and the washing water containing the detergent inside the tub 101 can be introduced into the drum 108 through the through holes. The washing water introduced into the drum 108 can wet the cloth.

The detergent dispenser 102 may be installed on the upper portion of the tub 101 and the upper portion of the front cover so as to be capable of being drawn out in a DRAWER TYPE. The detergent stored in the laundry box may be mixed with the washing water flowing through the water supply pipe and then introduced into the tub 101. The detergent channel can connect the detergent input unit 102 and the tub 101. [

A circulation pump 103 is provided inside the cabinet 100 to efficiently wet the cloth. The circulation pump 103 circulates the washing water discharged from the tub 101 back into the tub 101. The circulating washing water is sprayed on the cloth inserted into the tub 101 through the plurality of nozzles 107, thereby wetting the cloth. The nozzles 107 are installed in the gaskets 101a of the tub 101 at intervals in the circumferential direction.

The circulation pump 103 may be integrated with the pump casing 105 together with the drain pump 106.

A drain pipe is formed at a lower portion of the tub 101, and a drain pipe connecting the drain pipe and the pump casing 105 is provided. And the rear surface of the pump casing 105 is formed so as to communicate with one side of the drain pipe. The washing water discharged from the tub 101 flows into the pump casing 105 through a drain pipe.

A filter is provided inside the pump casing 105 so that foreign matter such as debris contained in the washing water can be collected by the filter.

A drain pump 106 is formed at one side of the pump casing 105. The drain pump 106 can discharge the wash water to the outside through the drain hose communicating with the outside of the washing machine after the washing is completed.

A circulation pump 103 is formed on the other side of the pump casing 105 and a circulation pump chamber is provided between the circulation pump 103 and the pump casing 105. An impeller is provided inside the circulation pump chamber, and the impeller is connected to a circulation motor incorporated in the circulation pump casing and is rotated while receiving power. The washing water discharged from the tub 101 can be circulated back to the tub 101 by driving the impeller.

In the present invention, the aeration module 200 is provided to improve the spraying power and increase the solubility of the detergent in a small amount of water, spray the laundry in an atomized state, and atomize the washing water.

3 is an exploded perspective view showing the internal configuration of the aeration module 200 of FIG. 3, and FIG. 4B is an exploded perspective view of the aeration module 200 of FIG. It is an incision perspective showing the structure. FIG. 5 is a plan view showing the internal structure of the lower body 202 in FIG. 4A, and FIG. 6 is a plan view of the upper cover 203 in FIG. 4A.

The aeration module 200 may include an air pump unit 210 and an air mixer unit 230.

The washing water discharged from the tub 101 is circulated to the power source of the circulation pump 103. A circulating hose communication hole 103a is formed in the upper part of the circulation pump chamber. The circulating hose communicating hole 103a is connected to the air mixer unit 230 through the circulating hose 104. [ One side of the circulating hose 104 is connected to the circulating hose communicating hole 103a and the other side of the circulating hose 104 is connected to the inlet 2022 of the air mixer unit 230.

The air pump unit 210 compresses outside air such as atmospheric pressure, that is, the outside of the washing machine and the inside of the cabinet 100 to generate compressed air. The generated compressed air is supplied to the air inlet 2323 of the air mixer unit 230.

The air mixer unit 230 mixes the compressed air supplied from the air pump unit 210 and the wash water supplied from the circulation pump 103, and then discharges the mixed mixed fluid toward the inside of the tub 101.

The air pump unit 210 and the air mixer unit 230 may be provided in a single housing 201 to be modularized.

The housing 201 may include a lower body 202 and an upper cover 203.

The lower main body 202 has an outside air inlet 2021 and an inlet 2022. An air pump unit 210 and an air mixer unit 230 are provided inside the lower main body 202.

The upper cover 203 is configured to cover the upper portion of the lower body 202 and has an outlet 2035 on the upper surface of the upper cover 203.

Outside air having the same pressure as the above-mentioned atmospheric pressure flows into the inside of the housing 201 through the outside air inlet 2021. [ The outside air inlet 2021 is formed on the bottom surface of the housing 201 so as to communicate with the outside of the housing 201 and the inside of the cabinet 100. The outside air inlet 2021 is formed in the form of a hole so that the outside of the housing 201 can communicate with the inside thereof.

The inlet 2022 may be formed at a lower side of the housing 201. It is preferable that an inlet 2022 is formed in the lower portion of the housing 201 so that the direction of the intake of the washing water is vertically upward from the lower portion of the housing 201. Since the compressed air has a much lower specific gravity than water, the compressed air has a property of buoyancy rising in the water, and when the flow direction of the wash water is controlled in the same direction as the buoyancy direction of the compressed air, This is because the buoyant force of the air can increase the propulsion force. At this time, the inlet 2022 may protrude from one side of the housing 201 toward the circulation pump 103. The plurality of inlet ports 2022 may be formed in parallel to the lower side of the housing 201. The direction of the intake of the washing water may be a direction intersecting with the direction of gravity.

The outlet 2035 may be formed on one side of the upper portion of the housing 201. The mixed fluid mixed in the air mixer unit 230 flows out to the outside of the housing 201 through the outlet 2035. The outlet 2035 is formed on the upper surface of the housing 201 in the upward direction, such as the buoyancy direction of the compressed air. The outlet 2035 may be formed in plural. For example, two or three outlets 2035 may be formed. The plurality of outlets 2035 are connected to the plurality of nozzles 107 through a plurality of distribution channels 234.

One side of the distribution channel 234 is connected to the outlet 2035 and the other side is connected to the nozzle 107. Accordingly, the mixed fluid flowing out through the outlet 2035 can be guided to the nozzle 107.

The plurality of nozzles 107 may be installed on the gasket 101a provided in front of the tub 101 so as to be spaced apart from each other at regular intervals in the circumferential direction. The nozzle 107 is configured to spray the mixed fluid toward the laundry to be introduced into the tub 101, that is, the inside of the tub 101. The size of the hole at the end of the nozzle 107 can be adjusted so that the mixed fluid is sprayed while spreading at a wide angle.

The air pump unit 210 is formed on one side inside the housing 201. The air pump unit 210 includes a compression unit 220 provided to compress the outside air introduced through the outside air inlet 2021 and an electromagnet unit 211 for generating and transmitting power to the compression unit 220, And an operation unit 214. [

The electromagnetic portion 211 may be constituted by a coil winding portion 212 and a core portion 213.

The coil winding portion 212 is formed by winding a coil 212a around the bobbin 212b and generating a magnetic field around the coil 212a when a power or current is applied to the coil 212a, Respectively.

The core portion 213 is provided to greatly increase the magnetic field generated in the coil winding portion 212. The core portion 213 is composed of a plurality of protruding portions 213a arranged in parallel to each other and a connecting portion 213b connecting one side of the plurality of protruding portions 213a. The plurality of protrusions 213a and the one connection portion 213b may have a shape similar to the English capital letter 'E'.

The middle protrusion 213a of the plurality of protrusions 213a is inserted into the bobbin 212b or the coil winding portion 212 and the core portion 213 and the coil winding portion 212 form one assembly.

The core portion 213 is magnetized by a magnetic field generated in the coil winding portion 212. In other words, the plurality of protrusions 213a have properties of a magnet such as an N pole or an S pole. When a current is applied to the coil 212a, the protrusion 213a of the core portion 213 is magnetized to the N-pole or S-pole, and when the coil 212a is disconnected, the coil 212a returns to its original state. Further, an AC current may be applied to the coil 212a. According to this, the protrusion 213a of the core portion 213 can be switched from the N pole to the S pole or from the S pole to the N pole depending on the frequency.

The actuating part 214 can reciprocate linearly by electromagnetic interaction with the electromagnet 211. To this end, the actuating part 214 is provided with a permanent magnet 216. The operating portion 214 may include a magnet mounting portion 215 to which a plurality of permanent magnets 216 are mounted and a moving portion 217 that moves in conjunction with the magnet mounting portion 215.

The plurality of permanent magnets 216 are arranged to face the core portion 213. The two permanent magnets 216 may be arranged to face a part of the coil 212a wound between the protrusions 213a. The permanent magnet 216 may be composed of an S pole formed on the surface facing the protrusion 213a and an N pole formed on the surface of the end of the protrusion 213a. According to this, when the plurality of protrusions 213a are magnetized to N pole, S pole, and N pole, the S poles of the permanent magnet 216 facing between the N pole and the S pole receive mutual magnetic force and move in one direction. The magnet mounting portion 215 and the moving portion 217 can be moved in one direction by the interaction between the permanent magnet 216 and the core portion 213. [ Or when the AC current is applied to the coil 212a, the polarity of the protrusion 213a of the core portion 213 may be changed repeatedly. Thereby, the permanent magnet 216 can periodically reciprocate linearly in one direction or the opposite direction.

The magnet mounting portion 215 supports the permanent magnet 216 and the moving portion 217 can transmit the power due to the magnetic force generated from the permanent magnet 216 to the compression portion 220.

The compression unit 220 may include a first compression unit 221 and a second compression unit 222 that are spaced apart from each other with the operation unit 214 therebetween. The first compression section 221 may be disposed on one side of the operation section 214 in the movement direction of the operation section 214 and the second compression section 222 may be disposed on the other side of the operation section 214. The first compression portion 221 and the second compression portion 222 may be arranged to be spaced apart from each other in a direction intersecting the direction in which the wash water is received. The first compression unit 221 and the second compression unit 222 may be disposed on opposite sides of the interior of the housing 201 facing each other and may be coupled and supported by fastening elements such as bolts.

The first compression portion 221 is disposed on the left side in the housing 201 with respect to the direction in which the washing water is received in FIG. 4A and the second compression portion 222 is disposed on the right side in the housing 201. A first accommodating portion accommodating the first compression portion 221 and a second accommodating portion accommodating the second compression portion 222 may be provided. The first accommodating portion is formed inside the housing 201 by a first partition formed to protrude in the housing 201 in the direction opposite to the intake direction and the second accommodating portion is formed in the housing 201 in the direction opposite to the intake direction, And is formed inside the housing 201 by a second partition protruding inside. The first accommodating portion and the second accommodating portion may be opened to communicate with the third accommodating portion between the first accommodating portion and the second accommodating portion for connection with the actuating portion 214, The third accommodating portion is provided with an electromagnetic portion 211 and an actuating portion 214.

The air mixer unit 230 is provided inside the housing 201. The air mixer unit (230) has a separate internal space from the space for accommodating the air pump unit (210). The air mixer unit 230 is separated from the air pump unit 210 by the partition wall 231. [ The partition wall 231 is bounded to the air pump unit 210 inside the housing 201 and one side of the housing 201 is connected to the outside of the housing 201 while forming one surface of the air mixer unit 230 Boundaries. The partition wall 231 can partition the internal space of the housing 201 into two spaces, that is, an air pump unit 210 accommodating section and an air mixer unit accommodating section 230. The first receiving portion, the second receiving portion, and the third receiving portion described above constitute the air pump unit 210 accommodating portion.

The air mixer unit 230 includes a mixing chamber 232 inside the partition wall 231. The mixing chamber 232 has a mixing space for mixing wash water and compressed air therein. The mixing chamber 232 is disposed apart from the boundary wall 231. The mixing chamber 232 is positioned higher than the inlet 2022 to avoid impacts due to the pressure of the wash water flowing through the inlet 2022. The mixing chamber 232 has a water inlet hole 2321, a water outlet hole 2322, and an air inlet 2323. The inlet hole 2321 is formed to communicate with the inlet port 2022 such that a part of the washing water flowing through the inlet port 2022 flows into the mixing chamber 232. A plurality of the intake holes 2321 are formed on the lower surface of the mixing chamber 232. The direction in which the washing water flows into the inlet 2022 is a horizontal direction from one side of the housing 201 to the inner space toward the boundary wall 231 or the operating portion 214. The inlet hole 2321 is perforated in the direction intersecting the inlet 2022, that is, in the buoyancy direction or gravity direction or up and down direction. This is to induce the flow of wash water received through the inlet 2022 into the interior of the mixing chamber 232, that is, in the vertical upward or buoyant direction.

The outlet hole 2322 is formed in the upper surface of the mixing chamber 232 in a direction facing the inlet hole 2321 so that a mixed fluid of the compressed air and the washing water flows out in the buoyancy direction.

The air inlet 2323 protrudes into the mixing chamber 232 through the upper surface of the mixing chamber 232 in the form of a pipe. The air inlet 2323 extends to the lower portion of the mixing chamber 232 and the lower end of the air inlet 2323 is connected to the lower surface of the mixing chamber 232 so that compressed air can be discharged to the bottom surface of the mixing chamber 232 And are formed at a slight interval. For example, the interval may be about 5 mm, but is not limited thereto. The purpose of allowing the air inlet 2323 to extend close to the bottom surface of the mixing chamber 232 is to inject compressed air into the lower end of the mixing chamber 232 so that the compressed air and wash water are sufficiently mixed.

The air mixer unit 230 has a bypass passage 233 formed between the partition wall 231 and the mixing chamber 232. The bypass channel 233 is configured such that a portion of the wash water flowing through the inlet 2022 bypasses the mixing chamber 232. A part of the washing water flowing through the inlet 2022 flows into the mixing chamber 232 and the other part of the washing water is branched into the mixing chamber 232 from the lower part of the mixing chamber 232 to the bypass passage 233, And may be discharged through the outlet 2035. [ The bypass channel 233 bypasses part of the washing water flowing into the interior of the air mixer unit 230 through the inlet 2022 without passing through the interior of the mixing chamber 232 to the mixing chamber 232 It is possible to increase the water hammer phenomenon by reducing the amount of the washing water introduced and increasing the effect of mixing the compressed air and the compressed air.

Here, the volume ratio of the mixing chamber 232 and the bypass passage 233 in the partition wall 231 may be 70% to 30%. In order to form the bypass channel 233, the mixing chamber 232 may be configured to be mounted on one side of the housing 201. One side of the mixing chamber 232 (the side facing the inlet 2022) can be fastened to one side of the housing 201 with a fastening element such as a bolt. The mixing chamber 232 may be disposed such that the rear surface thereof is spaced apart from the inner surface of the boundary wall 231 with respect to the direction of the intake of the washing water flowing through the inlet 2022. Both sides of the mixing chamber 232 may be spaced apart from the boundary wall 231 in a direction intersecting with the direction of the intake. In addition, the bottom surface and the top surface of the mixing chamber 232 may be spaced apart from the housing 201 and the top cover 203. The washing water introduced through the inlet 2022 branches from the outer bottom surface of the mixing chamber 232 to the bypass passage 233 and merges at the upper portion of the outer side of the mixing chamber 232 and then flows through the outlet 2035, (Not shown).

The upper cover 203 is provided with an exhaust passage portion 2031 for supplying compressed air from the air pump unit 210 to the air mixer unit 230.

The exhaust passage portion 2031 connects the air pump unit 210 and the air mixer unit 230 such that the compressed air flows into the air mixer unit 230.

The exhaust flow path portion 2031 includes a first flow path 2031a formed in a first direction crossing opposite sides of the upper cover 203 in a first direction and a second flow path 2031b crossing the first direction in the first flow path 2031a And a second flow path 2031b extending in the second direction. The first direction is a direction intersecting with the direction in which the washing water flowing in through the inlet 2022 flows. And the second direction is opposite to the above-mentioned direction of the intake.

Both ends of the first flow path 2031a are connected to the discharge port 2236 of the compression unit 220 and are supplied with the compressed air discharged from the compression unit 220. One end of the first flow path 2031a is connected to the first compression unit 221 and the other end of the first flow path 2031a is connected to the second compression unit 222.

One side of the second flow path 2031b is connected to the first flow path 2031a and the other side of the second flow path 2031b is connected to the air inlet 2323 of the air mixer unit 230. Accordingly, the air compressed by the compression unit 220 can be moved along the first and second flow paths 2031b and flow into the mixing chamber 232 of the air mixer unit 230. [

The exhaust passage portion 2031 may protrude from the upper surface of the upper cover 203 along the shape of the flow path. The exhaust flow path portion 2031 includes an inner flow path portion formed concavely to include the first flow path 2031a and the second flow path 2031b and an outer flow path portion 2033b formed in the upper surface of the upper cover 203 so as to cover the upper portion of the inner flow path portion. And a flow path cover portion. The flow path cover part includes a plurality of fastening ribs 2032 fastened to the upper surface of the upper cover 203 and the fastening ribs 2032 can be fastened to the upper cover 203 by fastening elements such as bolts.

And the second flow path 2031b is provided with a check valve for restricting the flow direction of the compressed air in one direction. The check valve 2033 has a valve body 2033a made of a rubber material inserted into the second flow path 2031b and a valve body 2033b disposed inside the valve body 2033a to fix the valve body 2033a inside the second flow path 2031b And a holder 2034 to be inserted therein.

The valve body 2033a has a pipe shape and a hollow portion inside, so that the fluid can flow through the hollow portion. A rear end portion of the valve body 2033a is opened with respect to a flow direction of the fluid and a tapered portion 2033b formed at an end portion of the valve body 2033a so as to be narrowed in cross section is formed. The tapered portion 2033b may be formed symmetrically with respect to the longitudinal center line of the valve body 2033a. The tapered portion 2033b is configured to be opened when the flow of the fluid is forward and to close when the flow of the fluid is reverse. For this purpose, a cutout 2033c is formed at the front end of the tapered portion 2033b.

7 is an exploded perspective view showing the configuration of the air pump unit 210 in FIG. 5, FIG. 8A is a plan view of the air pump unit 210 in FIG. 7, and FIGS. 8B and 8C are cross- Fig.

The air pump unit 210 mainly includes an electromagnetic portion 211, an operating portion 214, and a compression portion 220.

The description of the electromagnet 211 and the actuating part 214 will be omitted in order to avoid redundant explanations.

7, the internal configuration of the compression unit 220 and the connection relationship between the operation unit 214 and the compression unit 220 will be described. Since the first compression unit 221 and the second compression unit 222 have the same components as each other, a detailed description of the internal configuration of the first and second compression units 222 will be omitted.

The compression section 220 includes a compression section body 223, a diaphragm 224, and a support section 227.

The compression portion main body 223 is disposed on one side of the operation portion 214. [ The compression unit main body 223 has a suction chamber 223a, a compression chamber 223b, and a discharge chamber 223c. The compression unit main body 223 has a suction port 2235 and a discharge port 2236. Outside air flows into the interior of the housing 201 through the outside air inlet 2021 and an inlet 2235 is formed on one side of the compression body 223 (the side facing the operating portion 214). The suction port 2235 is formed to communicate with the inside of the housing 201 and the outside air is introduced into the inside of the compression unit body 223 through the suction port 2235. The discharge port 2236 is provided to discharge the compressed air to the outside of the compression unit main body 223 or the air mixer unit 230 through the air mixer unit 230 or the exhaust flow path unit 2031. The discharge port 2236 may be formed on the side of the compression section body 223 in a direction intersecting with the outside air introduction direction. The discharge port 2236 may be formed on the upper surface (the surface facing the upper cover 203) of the compression section body 223.

The compression chamber 223b is partitioned inside the compression section body 223 by a first partition wall 2231. [ The compression chamber 223b is disposed in the compression chamber body 223 in a direction opposite to the operation portion 214 with respect to the first partition wall 2231.

The diaphragm 224 is made of a material having elasticity such that a part of the diaphragm 22 can be deformed or moved by an external force and returned to its original shape when external force disappears. The diaphragm 224 is provided inside the compression chamber 223b for compressing the air filled in the compression chamber 223b by the power transmitted from the operation portion 214 or for sucking the outside air into the compression chamber 223b. The diaphragm 224 may have a circular shape and may be mounted to cover one side of the compression chamber 223b to seal the compression chamber 223b.

The diaphragm 224 is connected to the moving part 217 to receive power from the actuating part 214. The moving portion 217 extends from the magnet mounting portion 215 toward the compression portion 220. The diaphragm 224 is engaged with the moving portion 217 by the connecting shaft 225. A thread is formed on the connecting shaft 225, and one side of the connecting shaft 225 is fastened to the moving part 217. A through hole is formed in the center of the diaphragm 224 and another side of the connection shaft 225 can be inserted through the through hole.

A circular first pressure plate 226a and a second pressure plate 226b are disposed to apply pressure to one side surface and the other side surface of the diaphragm 224. The connection shaft 225 is inserted through the holes formed in the center portions of the first pressure plate 226a, the diaphragm 224 and the second pressure plate 226b. A fastening element such as a nut is fastened to the end of the connecting shaft 225 so that the first and second pressing plates 226b are brought into close contact with both sides of the diaphragm 224. When the moving part 217 moves, the central part of the diaphragm 224 moves in the longitudinal direction or the axial direction of the connecting shaft 225.

A rotation restricting rib 2261 or a rotation restricting groove 2262 or the like may be formed to limit rotation of the first pressure plate 226a or the second pressure plate 226b relative to the diaphragm 224. [

The outer periphery of the diaphragm 224 may be configured to be fixed.

To this end, an outer circumferential insertion portion 224a is formed to protrude in the circumferential direction on the outer peripheral portion of the diaphragm 224.

A support portion 227 is provided on one side surface of the compression portion main body 223 to fix the outer peripheral portion of the diaphragm 224. The support portion 227 is disposed in a direction opposite to a side surface of the compression portion main body 223. The support portion 227 may have a rectangular plate shape having a circular hole therein. The moving part 217 can reciprocate linearly through the circular hole of the support part 227 toward or away from the compression part 220. The outer circumferential receiving portion 227a is formed concavely in the circumferential direction on one side of the supporting portion 227 (facing the pressing portion main body 223) for supporting the outer circumferential insertion portion 224a of the diaphragm 224 do. The outer circumferential insertion portion 224a of the diaphragm 224 can be inserted into and supported by the outer circumferential receiving portion 227a. The outer peripheral portion of the diaphragm 224 can be fixed by fastening the peripheral portions of the compression portion main body 223 and the support portion 227 to each other by fastening elements such as bolts.

The outer circumferential inserting portion 224a of the diaphragm 224 is provided with the rotation preventing protrusion 224a1 and the outer circumferential receiving portion 227a of the supporting portion 227 is provided in order to restrict the diaphragm 224 from rotating in the circumferential direction. The rotation preventing groove 227a1 is formed. The rotation preventing protrusion 224a1 is inserted into the rotation preventing groove 227a1 to prevent the diaphragm 224 from rotating in the circumferential direction.

The suction chamber 223a is separated from the compression chamber 223b by the first partition wall 2231 and communicates with the suction port 2235. Outside air introduced through the suction port 2235 can be temporarily stored in the suction chamber 223a.

A plurality of suction holes 2231a are formed on one side of the first partition 2231 so as to communicate with the compression chamber 223b. The plurality of suction holes 2231a are opened and closed by the first check valve 2232. The first check valve 2232 is opened and closed by a pressure difference between the suction chamber 223a and the compression chamber 223b. The first check valve 2232 may be composed of a cover plate 2232a configured to cover a plurality of suction holes 2231a and a center support portion 2232b protruding axially from the center of the cover plate 2232a have. The cover plate 2232a has elasticity. The center support portion 2232b is inserted and coupled through a support hole 2231c formed at one side of the first partition wall 2231. [ The center support portion 2232b of the first check valve 2232 is inserted in the direction of the suction chamber 223a in the compression chamber 223b and the cover plate 2232a is disposed in the compression chamber 223b. When the suction pressure is generated in the compression chamber 223b by the diaphragm 224, the cover plate 2232a in the compression chamber 223b is opened and the outside air in the suction chamber 223a is compressed in the compression chamber 223b. Lt; / RTI > However, when the outside air sucked into the compression chamber 223b flows backward, the suction hole 2231a is closed by the cover plate 2232a, so that back flow of the outside air can be prevented.

The discharge chamber 223c is separated from the compression chamber 223b by the first partition wall 2231 and is also separated from the suction chamber 223a by the second partition wall 2234. [ A plurality of discharge holes 2231b are formed on the other side of the first bank 2231 so as to communicate with the compression chamber 223b and the compressed air discharged from the compression chamber 223b through the discharge hole 2231b is temporarily stored do. The plurality of discharge holes 2231b are opened / closed by the second check valve 2233. The second check valve 2233 is opened and closed by a pressure difference between the discharge chamber 223c and the compression chamber 223b. The second check valve 2233 may include a cover plate 2232a configured to cover the plurality of discharge holes 2231b and a center support portion 2232b protruding axially from the center of the cover plate 2232a . The center support portion 2232b of the second check valve 2233 is inserted through the support hole 2231c formed on the other side of the first partition 2231. [ The center support portion 2232b of the second check valve 2233 is inserted into the discharge chamber 223c in the direction of the compression chamber 223b and the cover plate 2232a is disposed inside the discharge chamber 223c. According to this, when the compression pressure of the compression chamber 223b is generated by the diaphragm 224, the cover plate 2232a of the discharge chamber 223c is opened by the pressure of the compressed air and the compressed air of the compression chamber 223b Can be discharged to the discharge chamber 223c. However, when the compressed air discharged to the discharge chamber 223c flows backward, the discharge hole 2231b is closed by the cover plate 2232a, so that the backflow of the compressed air can be prevented. The discharge chamber 223c communicates with the discharge port 2236. The compressed air can be discharged to the outside through the discharge port 2236.

Referring to FIG. 8A, the first compression unit 221 and the second compression unit 222 are spaced apart from each other in a direction opposite to each other, that is, a direction intersecting with the direction of the intake of the washing water flowing through the inlet 2022. The first compression unit 221 is connected to one side of the movement unit 217 and the second compression unit 222 is connected to the other side of the movement unit 217 to transmit the power transmitted through the movement unit 217 Receive. The first compression section 221 and the second compression section 222 can alternately repeat the compression, discharge and suction strokes of the air.

The diaphragm 224 of the first compression portion 221 is moved in the direction of the first compression portion 221 when the shifting portion 217 moves in one direction (left direction in the drawing) Thereby compressing the air filled in the compression chamber 223b. The compressed air pressure is applied to the cover plate 2232a of the first check valve 2232 to overcome the elastic force of the cover plate 2232a and open the cover plate 2232a. The compressed air can be discharged to the outside of the compression unit main body 223 through the discharge hole 2236 through the open discharge hole 2231b.

The diaphragm 224 of the second compression section 222 is configured to expand and contract the compression chamber 223b when the movement section 217 moves in one direction with reference to the suction stroke of the second compression section 222 with reference to FIG. To generate a suction pressure. The cover plate 2232a of the second check valve 2233 is opened by the suction pressure and the outside air is sucked into the compression chamber 223b through the suction hole 2231a.

8C, an AC current is applied to the coil 212a of the electromagnet 211 and the polarity of the protrusion 213a of the core portion 213 changes from the S pole to the N pole or from the N pole to the S pole The moving direction of the moving unit 217 is changed. Thereby, the suction stroke is carried out in the first compression section 221, and the compression and discharge stroke can be performed in the second compression section 222.

FIG. 9 is a conceptual diagram showing that wash water in the check valve 2033 according to the present invention fails to flow back in the air mixer 300.

The check valve 2033 provided in the second flow path 2031b of the exhaust flow path portion 2031 moves the flow of the compressed air from the air pump unit 210 to the air mixer unit 230 and restricts the flow in the reverse direction .

However, when a failure occurs in the check valve 2033, the wash water may flow back to the air pump unit 210 from the air mixer 300.

In this case, the suction port 2235 of the compression unit 220 may be connected to the tub 101 in order to prevent the wash water from leaking into the cabinet 100.

FIG. 10 is a conceptual diagram for explaining the water hammer effect of the air mixer 300 according to the present invention. FIG. 11a is a graph showing the pressure change according to the air flow rate for explaining the air mixing effect of the present invention, FIG. 5 is a graph showing the flow velocity change according to the air flow rate to explain the air mixing effect of the present invention. FIG.

10, the air mixer 300 includes a housing 301, a plurality of inlet ports 302, an air inlet port 303, and a plurality of outflow ports 304.

The housing 301 may be cylindrical. A mixing space for mixing washing water and compressed air is provided inside the housing 301. The inlet (302) is formed on the bottom surface of the housing (301) so that wash water can flow into the mixing space. An air inlet 303 is formed in a direction intersecting the inlet 302 at the lower side of the side of the housing 301 where the compressed air flows into the mixing space. The air inlet 303 and the inlet 302 constitute independent flow paths so that the compressed air flowing through the air inlet 303 and the washing water flowing through the inlet 302 are mixed and mixed. The plurality of outflow ports 304 are formed on the upper portion of the housing 301 so that the mixed fluid in which the washing water and the compressed air are mixed flows out to the outside of the housing 301.

The mixing space can occupy or occupy the entire internal volume of the housing 301. The mixing space shown in FIG. 10 occupies the entire volume space inside the housing 301.

The diameter of the mixing space is much larger than the diameter of the air inlet 303 and the plurality of inlet ports 302. Therefore, the flow rate of the compressed air flowing through the air inlet 303 and the flow rate of the washing water flowing through the inlet 302 are significantly reduced in the mixing space, so that the mixed space of the housing 301 is compressed So that residence time and storage space can be provided so that the washing water can be sufficiently mixed.

Further, the diameter of the mixing space is much larger than the diameter of the plurality of outlets 304. As a result, the flow rate of the mixed fluid of the compressed air and the washing water mixed in the mixed space increases significantly when the housing 301 is exited. This increase in flow velocity can be more effective when the mixed fluid of compressed air and washing water passes through the housing 301 than when the washing water passes through the housing 301 without compressed air.

Further, the pressure of the fluid can be further increased when the mixed fluid of the compressed air and the washing water passes through the housing 301 than when the washing water passes through the housing 301.

Referring to the graph of FIG. 11A, it is shown that as the flow rate of air (LPM) increases to the right, the pressure of the fluid increases in the upward direction.

FIG. 11B shows that the flow rate increases upward as the flow rate of air (LPM) increases to the right. For example, when the flow rate of the mixed air increases from 0.5 LPM to 20 LPM, the flow rate of the mixed fluid increases by about 4 times from 0.42 m / sec to 1.70 m / sec.

In addition, the plurality of outflow ports 304 are in the shape of a pipe bent at a right angle at the upper surface of the housing. The plurality of outflow ports (304) are formed so as to be bent in a direction crossing the inlet (302).

In the case where the compressed air is mixed with the washing water as in the present invention, when the diameter of the flow path is changed from a large diameter to a small diameter, a sudden change in flow velocity (increase in flow velocity) The jetting force of the mixed fluid can be increased by using the phenomenon of water hammer.

12 is a cross-sectional view taken along the line A-A showing the flow path of the fluid in the aeration module 200 of FIG.

The washing water discharged from the tub 101 is supplied to the air mixer unit 230 of the aeration module 200 through the inlet 302 of the housing 201 by the circulation pump 103. A part of the washing water flowing through the inlet 2022 flows into the mixing chamber 232 through the inlet hole 2321 of the mixing chamber 232 and rises. Further, another portion of the washing water flowing through the inlet 2022 branches at the lower portion of the mixing chamber 232, bypasses the mixing chamber 232, and rises along the bypass channel 233.

The compressed air discharged from the discharge port 2236 of the compression section 220 moves along the first flow path 2031a and the second flow path 2031b of the exhaust flow path portion 2031 and flows into the second flow path 2031b Passes through the valve 2033, flows into the mixing chamber 232 through the air inlet 2323 of the air mixer unit 230, and is raised by buoyancy of the compressed air.

Then, the washing water flowing along the bypass passage 233 and the mixed fluid flowing out through the plurality of outflow holes are discharged to the outside of the housing 201 through the plurality of outflow ports 2035.

Here, the air mixer unit 230 performs the following operation by aeration of the compressed air generated from the air pump unit 210 into the washing water flowing into the mixing chamber 232. The compressed air injected into the mixing chamber 232 by the aeration is mixed with the washing water, and at the same time, the buoyancy is received in the washing water, and the upward flow of the washing water can be further accelerated. As a result, the flow velocity of the compressed air and the washing water rapidly increases. Such a rapid change in the flow rate causes a large pressure to generate a large energy. This phenomenon is called the water hammer phenomenon. As described above, the compressed air is injected into the washing water in the mixing chamber 232 and mixed to obtain a water hammer effect by the aeration.

That is, since the compressed air is mixed with the washing water, a large energy can be generated to increase the spraying power of the washing water. In addition, the compressed air can be atomized or atomized by splitting the wash water into small pieces. Further, as the compressed air is mixed with the washing water, the spraying duration of the washing water can be extended with a small amount of water.

The mixed fluid flowing out of the aeration module 200 moves along the distribution passage 234 and is injected into the interior of the tub 101 through the plurality of nozzles 107. The mixed fluid injected is atomized with an increased spraying force, The object can be uniformly wetted.

The washing machine described above is not limited to the configuration and the method of the embodiments described above, but all or a part of the embodiments may be selectively combined so that various modifications may be made in the embodiments.

100: Cabinet
101: the tub
101a: Gasket
101b: lifter
102: detergent dispensing part
103: circulation pump
103a: Circulating hose communicating hole
104: Circulating hose
105: Pump casing
106: Drain pump
107: Nozzle
108: Drums
200: Aeration module
201: housing
202:
2021: Outer air inlet
2022: Entrance
203: upper cover
2031:
2031a:
2031b:
2032: fastening rib
2033: Check valve
2033a: valve body
2033b:
2033c:
2034: Holder
2035: Outlet
210: Air pump unit
211: Electron
212: coil winding section
212a: coil
212b: Bobbin
213: core portion
213a: projection
213b:
214:
215: magnet mounting portion
216: permanent magnet
217:
220:
221: first compression section
222: second compression section
223: compression unit main body
223a: suction chamber
223b: compression chamber
223c: Discharge chamber
2231: first partition
2231a: suction hole
2231b: Discharge hole
2231c: Support hole
2232: First check valve
2232a: cover plate
2232b: Central Branch
2233: Second check valve
2234: second partition
2235: Inlet
2236: Outlet
224: Diaphragm
224a:
224a1: rotation preventing projection
225: Connection axis
226a: first pressure plate
226b: second pressure plate
2261: rotation limit rib
2262: Rotational restricting groove
227: Support
227a:
227a1: Anti-rotation groove
230: Air mixer unit
231:
232: mixing chamber
2321: Receiving hole
2322: Heading hall
2323: Air inlet
233: Bypassing Euro
234: Distribution Euro
300: air mixer
301: Housing
302:
303: Air inlet
304: Outlet

Claims (17)

A tub provided inside the cabinet;
A circulation pump circulating the wash water discharged from the tub back into the tub; And
And aeration module for mixing the compressed air with the washing water supplied from the circulation pump and sending the mixed fluid mixed with the compressed air and the washing water to the inside of the tub. The method according to claim 1,
The aeration module includes:
A housing having an outside air inlet, an inlet and an outlet;
An air mixer unit which is formed at one side of the inside of the housing and mixes the washing water and the compressed air introduced through the inlet and discharges the mixed fluid of the washing water and the compressed air to the outside through the outlet; And
An air pump unit formed on the other side of the housing for compressing outside air flowing through the outside air inlet and sending the compressed air to the air mixer unit;
Wherein the washing machine comprises a washing machine. 3. The method of claim 2,
The air pump unit includes:
Electromagnet part;
An operating portion disposed to face the electromagnetic portion and having a permanent magnet and reciprocating by an electromagnetic force generated by interaction with the electromagnetic portion; And
A compression unit interlocked with the operation unit to compress external air;
Wherein the washing machine comprises a washing machine. The method of claim 3,
The electromagnet portion
A coil winding portion to which a coil is wound so as to generate a magnetic field upon receiving an electric current; And
A core portion having a plurality of protrusions, at least one protrusion being inserted into the coil winding portion and being magnetized by the magnetic field;
Wherein the washing machine comprises a washing machine. The method of claim 3,
Wherein,
A magnet mounting portion in which the permanent magnet is mounted so as to face the electromagnetic portion; And
A moving part provided in the magnet mounting part and moving in a direction moving toward or away from the compression part;
Wherein the washing machine comprises a washing machine. The method of claim 3,
Wherein the compression unit comprises:
A first compression unit disposed at one side of the operation unit in a moving direction of the operation unit; And
And a second compression unit disposed on the other side of the operation unit so as to face the first compression unit, wherein the first compression unit and the second compression unit alternately repeat the compression and the suction of the air. The method according to claim 6,
Wherein the compression unit comprises:
A compression unit main body having a suction port and a discharge port and having a compression chamber therein; And
A diaphragm provided in the compression chamber and compressing air filled in the compression chamber with power transmitted from the operation portion or sucking air into the compression chamber;
Wherein the washing machine comprises a washing machine. 8. The method of claim 7,
The compression unit main body,
A suction chamber which is separated from the compression chamber by a first partition and stores external air introduced through the suction port;
A plurality of suction holes formed at one side of the first partition to communicate with the suction chamber;
A first check valve that opens and closes the plurality of suction holes by a pressure difference between the suction chamber and the compression chamber and limits the flow of the external air to the compression chamber;
A discharge chamber which is separated from the compression chamber by the first partition, is separated from the suction chamber by a second partition, and stores compressed air to be discharged through the discharge port;
A plurality of discharge holes formed on the other side of the first partition to communicate with the discharge chamber; And
A second check valve that opens and closes the plurality of discharge holes by a pressure difference between the discharge chamber and the compression chamber and limits the flow of the compressed air to the discharge chamber;
Wherein the washing machine comprises a washing machine. 3. The method of claim 2,
The air mixer unit includes:
A partition wall partitioning the interior of the housing so as to have a separate internal space from a space for accommodating the air pump unit inside the housing; And
A mixing chamber which has an inlet hole, an outlet hole and an air inlet, and mixes the wash water flowing through the inlet and the inlet hole with the compressed air flowing through the air inlet;
Wherein the washing machine comprises a washing machine. 10. The method of claim 9,
Wherein the mixing chamber has a mixing space for mixing the washing water and the compressed air separately from the inner space of the partition wall,
Wherein the air mixer unit further comprises a bypass flow path formed between the boundary wall and the mixing chamber such that a part of the washing water flowing through the inlet port bypasses the mixing chamber. 11. The method of claim 10,
Wherein the mixing chamber comprises:
Wherein the back surface is spaced apart from the boundary wall in the direction of receiving the washing water flowing through the inlet, and both side surfaces are spaced apart from the boundary wall in a direction crossing the receiving direction. 11. The method of claim 10,
Wherein the plurality of inlet holes are formed in a lower portion of the mixing chamber,
The outflow holes are formed on the upper part of the mixing chamber,
Wherein the air inlet extends through the upper surface of the mixing chamber to a lower portion of the mixing space. 13. The method of claim 12,
Wherein the inlet port is formed in a lower portion of the housing in communication with the inlet hole and in a direction intersecting the direction of the intake of the washing water flowing through the inlet hole,
Wherein the outlet is formed in the upper portion of the housing in a direction that is the same as the outflow direction of the mixed fluid communicated with the outlet hole and flowing out through the outlet hole. 3. The method of claim 2,
The housing includes:
A lower main body having the outside air inlet and the inlet; And
An upper cover having the outlet and covering an upper portion of the lower body;
Wherein the washing machine comprises a washing machine. 15. The method of claim 14,
Wherein the upper cover includes an exhaust passage portion,
The exhaust passage portion
And an exhaust flow path portion in which one side communicates with the air pump unit and the other side communicates with the air mixer unit so that the compressed air flows into the air mixer unit. 16. The method of claim 15,
The exhaust passage portion
A first flow path formed in a first direction across both opposite side surfaces of the upper cover; And
A second flow path extending in a second direction intersecting with the first direction in the first flow path;
Two compressed air sent out from the air pump unit at opposite ends of the lower main body are introduced into both ends of the first flow path and joined together in the second flow path, And is transmitted to the air inlet of the unit. The method according to claim 1,
A plurality of nozzles for spraying the mixed fluid discharged from the aeration module into the tub; And
And a dispensing passage for guiding the mixed fluid dispensed from the aeration module to the plurality of nozzles.

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