KR101769365B1 - Washing machine - Google Patents

Abstract

The present invention relates to a washing apparatus having a filter assembly for removing foreign matter from air discharged from a receiving space of clothes, and in the case of a circulating type washing apparatus, the heat exchange efficiency of the heat exchanging apparatus is lowered due to foreign substances discharged from the receiving space In the case of the exhaust type washing machine, it is possible to prevent the foreign matter from being discharged to the space provided with the washing machine.

Description

Washing machine

The present invention relates to a washing machine.

The washing machine is a household appliance that is capable of washing, drying, or washing and drying clothes, and includes a washing machine, a dryer, and a washing machine for both drying.

A washing machine capable of drying clothes can be classified into an exhaust type washing machine and a circulating type (condensing type) washing machine based on the air flow method to supply hot air (hot air) to clothes.

The circulating type washing machine is a structure that circulates the air in the receiving portion in which the clothes are stored, removes moisture (dehumidification) from the air discharged from the receiving portion, and supplies the heated air to the receiving portion. The exhaust type washing device supplies heated air But the air discharged from the receiving portion is discharged to the outside of the receiving portion without being circulated.

Meanwhile, in a conventional washing machine capable of drying clothing, it is necessary to remove foreign substances such as lint from the air supplied to the receiving portion.

In the case of the circulating type washing machine, since the air discharged from the receiving space is dehumidified and then re-supplied to the receiving space by heating through the heat exchanger, foreign substances are accumulated in the heat exchanging device without removing foreign substances from the receiving space, You can drop it.

Further, in the case of the exhaust type washing machine, if the air inside the housing space is discharged without filtration, the result is that the lint or dust contained in the discharged air is supplied into the home provided with the washing machine. It is preferable that the air discharged from the space is filtered.

The present invention provides a washing apparatus having a filter assembly for removing foreign matter from air discharged from a receiving space of a garment.

It is another object of the present invention to provide a washing apparatus for automatically discharging a foreign matter filtered through a filter assembly to the outside of a filter assembly.

In order to solve the above-described problems, the present invention provides an air conditioner comprising: a housing space in which clothes are accommodated; a heat exchanger for supplying hot air to the housing space; A filter disposed on at least one side of the filter housing to filter foreign substances in the air, and a foreign matter detachable from the filter housing and discharged to the outside of the filter housing. And a filter assembly including a brush unit that rotates within a predetermined angle range so as to compress foreign substances in the filter housing by moving the foreign matter into the foreign matter receiving portion.

In this case, the brush unit may be rotated in the forward and reverse directions within the predetermined angle range.

Further, the predetermined angle range may be set so that the normal rotation area of the brush unit has an area overlapping with the storage area provided by the foreign body accommodation part.

The filter housing may further include an inlet hole communicating with the inlet, and a discharge hole through which the foreign matter filtered by the filter is discharged to the outside of the filter housing.

The foreign body receiving portion may include a connecting portion that is detachable from the discharge hole, and a collecting portion in which the foreign matter discharged from the filter housing is received.

In this case, the collecting part may be provided in the form of a mesh.

In addition, the filter may be provided as a pair of mesh networks provided in the filter housing and facing each other with the inlet hole therebetween.

The brush unit may include a rotating shaft passing through the filter, a brush accommodating the rotating shaft and rotatable in the filter housing, and a motor rotating the rotating shaft in a predetermined angular range.

In this case, the filter assembly further includes a stopper provided to contact the brush assembly when the brush is rotated in one direction within the predetermined angle range, and the motor changes the rotation direction when the brush contacts the stopper .

The stopper may be a pair of protrusions provided on the filter housing, the protrusions being spaced at the same angle as the predetermined angle range.

In addition, the filter may further include a shaft through hole through which the rotation shaft passes, the stopper protruding from the outer circumferential surface of the shaft through hole, the brush including an axis insertion portion in which the rotation axis is received, And a stopper accommodating groove provided in the shaft inserting portion to contact the stopper when rotated by a predetermined angle.

Meanwhile, the washing machine of the present invention may further include a sensing unit for determining whether the amount of the foreign matter stored in the foreign-body accommodating unit exceeds the amount of foreign matter that can be accommodated.

In this case, the sensing unit may include position detecting means for determining whether the brush unit rotates normally or within an angular range smaller than the predetermined angular range, and a control unit for, when the brush unit is rotated in the normal or reverse direction within an angular range smaller than the predetermined angular range And an informing means for displaying the information on the outside of the washing machine.

Meanwhile, the washing machine of the present invention may further include a sensing unit for indicating to the outside of the washing machine whether or not the amount of the foreign matter stored in the foreign body accommodating unit exceeds the amount of foreign matter that can be accommodated.

In this case, the sensing unit may include a position detecting unit that is provided at the same position as the stopper and senses the contact of the brush, and a notifying unit that displays the outside of the washing unit when the position detecting unit fails to detect the contact of the brush .

The duct may further include an exhaust port for supplying the air introduced into the intake port to the accommodation space, wherein the heat exchange device is provided inside the duct, and the filter assembly may be provided between the intake port and the heat exchange device have.

In addition, the washing apparatus of the present invention may further include a supply duct for supplying air outside the accommodation space into the accommodation space, wherein the heat exchange apparatus may be provided in the supply duct.

The filter assembly may be detachably attached to the suction port.

The present invention can provide a washing apparatus having a filter assembly for removing foreign matter from air discharged from a receiving space of a garment.

In addition, the present invention can provide an effect of providing a washing device that automatically discharges foreign matters filtered through a filter assembly to the outside of a filter assembly.

1 is a conceptual diagram of a washing apparatus of the present invention.
2 is a perspective view of a filter assembly included in the washing apparatus of the present invention.
FIG. 3 is a view showing the relationship between the brush receiving unit and the brush receiving unit provided in the filter assembly.
4 is a view showing an embodiment of a stopper provided in the filter assembly.
5 is a view of another embodiment of a stopper provided in the filter assembly.
6 and 7 are conceptual diagrams showing still another embodiment of the washing apparatus of the present invention.

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

Unless defined otherwise, all terms herein are the same as the general meaning of the term as understood by one of ordinary skill in the art to which this invention belongs, and if the terms used herein conflict with the general meaning of the term Are as defined herein.

It is to be understood that the present invention is not limited to the details of the embodiments described below, .

Hereinafter, a garment processing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of a washing machine according to the present invention. Hereinafter, the overall structure of a washing machine will be described with reference to FIG.

The washing machine 100 of the present invention includes a cabinet 1 having an outer appearance and a receiving space rotatably installed in the cabinet for storing clothes.

The receiving space may be provided with a drum 21 for providing a space for accommodating clothes, which are objects to be dried, and the drum may be provided in a cylindrical shape with open front and rear surfaces.

A front support portion 25 having an opening for receiving the door 3 is provided on the front face of the drum and a rear support portion 27 for supporting the rear of the drum may be provided on the rear face of the drum.

The front supporting part 25 is provided to support the front face of the drum and includes an opening through which the door 3 can be received and a detachable part 251 detachably attached to a filter assembly 5, Is provided on one side.

The rear support part 27 is provided to support the rear surface of the drum and is connected to a duct 41 of an air supply device to be described later.

Therefore, the drum is supported by the front supporting portion 25 and the rear supporting portion 27 so that the front face and the rear face are respectively rotatable, and the drum motor 211 provided at the outside of the drum is supported by the drum v, Thereby providing a rotational force provided by the motor to the drum.

In this case, the inner circumferential surface of the drum is preferably provided with a lifter 29 for facilitating agitation of the clothes.

Meanwhile, the washing machine of the present invention may further include an air supplying device 4 for supplying hot air to clothes accommodated in the drum.

The air supply device 4 discharges the air inside the drum to the outside of the drum and re-supplies the air into the drum 21, and is configured to dehumidify and heat the air discharged from the drum, 43 and a fan 45. [

 The duct 41 may include a suction port 411 communicating with the detachable portion 251 provided on the front support portion 25 and a discharge port 413 communicated with the rear support portion 27.

1, the suction port 411 is provided so as to communicate with the lower portion of the detachable portion 251 so that the filter assembly 5 to be described later can be received in the duct 41 through the detachable portion. And the outlet 413 may be provided so as to communicate with a hole passing through the rear support portion 27.

It is preferable that the heat exchanger 43 is provided so as to dehumidify the air inside the drum 21 discharged through the suction port 411 and then reheat the heated air to the inside of the drum through the discharge port 413 Hida.

The dehumidification and heating of the air discharged from the drum 21 is performed by the heat exchanger 43. The heat exchanger 43 is provided with condensed water supply means for supplying the cold water into the duct to remove moisture in the air and heating means for heating the dehumidified air .

However, unlike the above, the heat exchanger 43 may be equipped with a heat pump. The heat pump is a device in which an evaporator, a compressor, a condenser, and an expander are connected to a refrigerant circulation channel. The evaporator absorbs heat from the air introduced into the duct, thereby evaporating the refrigerant. Therefore, the condenser dehumidifies the air flowing into the duct by supplying heat to the inside of the duct during the condensation of the refrigerant, .

Therefore, if the heat exchanger is constructed through the heat pump, there is no need to provide a structure for communicating the condensed water supply means for condensing the air flowing in the duct 41 to the duct, and the structure related to the condensate water supplied into the duct And the like) is unnecessary, a simpler air supply device can be constructed.

The fan (45) is provided in the duct (41) so that the air inside the drum can provide power to circulate along the duct.

That is, when the fan 45 rotates, the air inside the duct 41 flows into the drum through the discharge port 413. When the air of the duct flows into the drum, the air inside the drum flows through the inlet 411 To the inside of the duct (41). Therefore, the air inside the drum 21 will be dehumidified and heated by the heat exchanger 43 in the process of flowing through the duct by the fan.

Meanwhile, when clothes in the drum are dried while circulating the air inside the drum 21, a foreign matter such as a lint may be generated in the process of drying the clothes, As shown in FIG.

When foreign substances such as lint are circulated through the duct 41 without being filtered, the foreign substances contained in the air can be adsorbed on the surface of the heat exchange apparatus. If foreign substances are adsorbed on the heat exchange apparatus, the efficiency of the heat exchange apparatus is lowered, The drying efficiency of the drying apparatus may be lowered.

Accordingly, the washing machine of the present invention may further include a filter assembly 5 for filtering foreign matter from the air circulating along the duct 41, and cleaning the foreign matter filtered to prevent deterioration of the filtration capacity.

The filter assembly 5 may be detachably attached to the suction port 411 through the detachable portion 251 of the front support portion 25. In this case, the user may open the door 3, 5 can be detached and coupled from the washing machine.

Fig. 2 is a perspective view of the filter assembly 5. Fig.

The filter assembly 5 is detachable from the suction port 411 of the duct 41 through the detachable portion 251 and includes a filter housing 51 for filtering air inside the accommodation space discharged to the suction port 411 And a brush unit 55 which removes foreign matter from the filter housing and stores the foreign matter, and a brush unit 55 that discharges the foreign matter in the filter housing to the foreign body accommodating unit 53 and compresses the foreign matter. do.

The filter housing 51 is detachable from the suction port 411 of the duct through the detachable portion 251 and air in the drum flowing into the suction port 411 flows through the filter housing to the inside of the duct 41 .

In this case, the upper end of the filter housing 51 may include an inlet hole 511 through which air discharged from the drum flows into the filter housing.

In addition, the filter housing may include at least one surface of a filter for filtering foreign substances from air introduced into the filter housing 51 through the inlet hole 511, and the foreign matter remaining in the filter housing may be discharged And a discharge hole 513 formed in the discharge space.

In this case, the foreign substances contained in the air introduced into the filter housing through the inlet hole 511 are left in the filter housing by the filter 513, and the air filtered by the foreign matter flows into the inside of the duct 41 The filter is preferably provided in the form of a mesh so as to flow into the heat exchanger 43 provided.

However, the filter may be provided as a first filter 513a and a second filter 513b facing each other with the inlet hole 511 therebetween. This is to maximize the filtration capacity of the filter assembly 5.

That is, even if the foreign matter remains in the filter, the air introduced into the filter assembly can be supplied to the inside of the duct through the first filter and the second filter. Therefore, compared to the case where only one filter is provided, You will be able to supply more.

The discharge hole 53 is formed to allow foreign matter remaining in the filter assembly 5 to be discharged to the outside of the filter assembly 5, and the discharge hole is formed in the inlet hole 511 And a lower end of the filter housing opposite to the lower end of the filter housing.

Furthermore, the filter assembly 5 of the washing machine of the present invention may further include a foreign matter receiving part 53 for storing a foreign matter discharged from the discharge hole in communication with the discharge hole.

The foreign body receiving part 53 may include a collecting part 533 for accommodating foreign matter and a connecting part 531 for detachably connecting the collecting part to the filter housing 51. The structure of the connection portion 531 can be variously embodied as long as the user can detach the foreign body accommodating portion 53 from the filter housing 51. The structure of the male and female slots or the hook- have.

The filter assembly is separated from the front supporting portion 25 and the duct 41 and then the foreign body receiving portion 53 is separated from the filter housing 51 to collect the foreign body in the collecting portion 533, (See Fig. 2 (b)).

Meanwhile, the collecting part 533 may be provided in various shapes or materials as long as the upper part is opened to communicate with the discharge hole 515 of the filter housing and the foreign material discharged to the discharge hole can be stored.

However, if the collecting part 533 is provided in the form of a mesh communicating with the discharge hole, the collecting part can function as the third filter. That is, the air introduced into the inside of the filter housing is supplied to the inside of the duct 41 after the foreign substances are filtered through the collecting part of the foreign body accommodating part 53 as well as the filters 513a and 513b.

The filter assembly 5 included in the washing apparatus of the present invention may further include a brush unit 55 for moving foreign substances remaining in the filters 513a and 513b to the foreign substance receiving unit 53 and compressing the foreign substances. .

The brush unit 55 includes a rotating shaft 553 provided through the filter 513a and a rotating shaft 553 which receives the foreign matter remaining in the filters 513a and 513b during rotation of the rotating shaft, And a motor (not shown) that allows the rotation shaft to rotate in a normal or angular range within a predetermined angle range.

The rotary shaft 553 is inserted into the shaft through hole 5131 of the filter 513a (see FIG. 5 (b)) and connected to the brush 551. One end of the rotary shaft is located inside the filter housing 51 and is coupled to an axial insertion portion 5511 provided in the brush. The other end of the rotary shaft is positioned outside the filter housing 51, (5531).

In this case, it is preferable that the motor (not shown) further includes a driven gear (not shown) engaged with the driven gear 5531.

The driving shaft 553 is provided with the driven gear 5531 and the motor is provided with the driven gear so that the power of the motor is indirectly transmitted to the brush because the filter assembly 5 of the present invention is mounted on the detachable portion 251 And the suction port 411 of the duct 41, as shown in FIG.

That is, if the rotating shaft 533 is directly connected to the motor, the motor must be directly connected to the surface of the filters 513a and 513b so that the filter assembly 5 can be detachably attached to and detached from the detachable part 251 of the front support part 25 In order to have a structure, a structure that can prevent the attachment / detachment unit from interfering with the motor should be provided (there is a problem that the structure of the attaching / detaching unit and the suction port becomes complicated).

In addition, when the motor is provided on the surface of the filter, the power supply portion of the motor must be maintained in a state of being connected to the motor when the filter assembly is separated from the front support portion.

However, if a driven gear (not shown) is provided in the motor and the driven gear 5331 is provided on the rotating shaft as described above, the coupling structure between the motor and the power supply portion of the motor can be simplified, and the structure of the attaching / Even when the motor can not be installed adjacent to the driven gear due to the structure of the washing machine, it is possible to transmit the power of the motor using the plurality of gears.

Meanwhile, the brush 551 rotates in the forward and reverse directions within a predetermined angle range by the motor and the rotating shaft 553, thereby moving the foreign substances remaining in the filters 513a and 513b to the foreign body accommodating portion and then pressurizing them.

The brush moves the foreign matter remaining in the filter to the foreign matter accommodating portion so that the user can maintain the function of the filter assembly without cleaning the foreign matters remaining on the filters 513a and 513b, Compressing and storing the foreign matter is to solve the inconvenience of the user frequently cleaning the foreign body accommodating portion.

Means that the brush 551 rotates clockwise and counterclockwise with respect to the rotation axis 553 as shown in FIG. 3, meaning that the brush 551 rotates in a predetermined angle range.

The normal and reverse rotation areas A of the brushes 551 include a region C overlapping with the foreign matter storage area B provided by the foreign body accommodation part so that the brush presses the foreign matter stored in the foreign matter receiving part. And this can be realized by appropriately designing the normal rotation angle range of the brush.

The motor rotates the rotary shaft 533 so that the brush 551 rotates counterclockwise in the drawing. When the brush rotates counterclockwise, the motor rotates the filters 513a, b, The foreign matter remaining in the foreign matter receiving portion 53 is moved through the discharge hole 515 to the foreign matter receiving portion 53.

At this time, the motor rotates the rotation shaft until the free end (one end where the rotation axis is not inserted) of the brush 551 is received in the foreign-body accommodating portion 53, and the free end of the brush is accommodated in the foreign- The rotation axis is rotated so that the brush rotates in the clockwise direction.

Changing the rotating direction of the brush when the free end of the brush is accommodated in the foreign body accommodating portion 53 is to press foreign matter stored in the collecting portion 533. Therefore, even if many foreign substances are stored in the collecting part 533 due to an increase in the number of times of operation of the washing machine, the brush 551 compresses foreign substances stored in the collecting part, thereby minimizing the volume of the foreign substances stored in the collecting part.

A method of controlling the rotation direction of the motor such that the brush 531 can rotate in a predetermined angle range may include a sensor for sensing the position of the brush and a sensor for receiving a signal from the sensor to change the rotation direction of the motor (Not shown), and may be realized through a motor and a stopper which change the rotation direction by itself when a resistance which interrupts the rotation of the brush is sensed. Hereinafter, the latter will be described as an example.

The motor may be provided with a synchronous motor that automatically changes the direction of rotation of the shaft when a resistance to the rotation is sensed. The stopper may contact the brush when the brush is rotated in one direction by a predetermined angle, Thereby restricting the rotation of the brush.

Accordingly, when the brush rotates by an angle range set in one direction, the brush comes into contact with the stopper. When the brush comes into contact with the stopper, the motor changes the rotation direction of the brush and rotates to a set angle range.

FIGS. 4 and 5 are views showing an embodiment of the stopper included in the washing apparatus of the present invention. Hereinafter, the stopper will be described in detail.

The stopper 517 may be provided in the filter housing 51 as a pair of protrusions spaced at an angle equal to a predetermined angle range set in the brush.

In this case, the stopper 517 may be provided inside the filter 513a as shown in FIG. 4 (a) or may be provided outside the filter 513a as shown in FIG. 4 (b) .

5 shows a case where one stopper 5133 is provided in the filter 513a. In this case, the brush 551 is provided with a stopper receiving groove 5513 for receiving the stopper 5133 .

5 is provided at one side of the outer circumferential surface of the shaft through hole 5131 through which the rotating shaft 553 passes, and the stopper receiving groove 5513 is formed in the shaft receiving hole 5513, (5511).

In this case, the stopper receiving groove 5513 is preferably provided on the outer peripheral surface of the shaft insertion portion 5511 so as to contact the stopper 5133 when the brush is rotated by a predetermined angle.

The washing apparatus of the present invention including the above-described structure filters out foreign matter such as lint generated in the drying process of the clothes and discharges the foreign matter remaining on the mesh of the filter surface to the outside of the filter unit, .

In addition, since the washing apparatus according to the present invention compresses foreign matter and stores it in the foreign-body accommodating portion, frequent cleaning of the filter unit is not required.

However, in the washing machine of the present invention, it is necessary for the user to remove the foreign substance by separating the foreign substance accommodating portion 53 from the filter housing 51. Hereinafter, the user is informed of the cleaning time of the foreign substance stored in the foreign body accommodating portion Will be described.

The sensing unit (not shown) includes position sensing means (not shown) for sensing the position of the brush 551 and notification means 6 for notifying a user of the foreign substance removal timing according to a signal provided from the position sensing means can do.

If foreign matter is stored in the foreign substance receiving portion 53 in a state where the foreign substance is stored in the foreign substance receiving portion 53, foreign substances in the foreign substance receiving portion may be introduced into the filter assembly 51 through the discharge hole 515 of the filter assembly 51.

When the foreign matter flows into the discharge hole 515, the brush 551 is rotated in an angle range smaller than the predetermined angle range, so that the position sensing means (not shown) It is possible to determine the point at which the foreign object collected in the foreign object accommodating portion 53 should be cleaned.

Accordingly, the position sensing means may be implemented by at least one contact detection sensor provided at the same position as the position of the stopper, or by two contact detection sensors having an angular range smaller than the reciprocating motion angle range set in the brush .

Further, the jaw detecting unit may further include notifying means (6) for notifying the user of the movement of the brush through the position sensing means when it is determined that the brush moves in an angular range smaller than a predetermined reciprocating motion angle range.

The notification means 6 can be provided on the outer circumference of the cabinet as shown in FIG. 1, and in this case, the notification means 6 can display a text message to the user to empty the foreign substance stored in the collection means 533 (LCD, LED panel, etc.).

The notification means may further include a speaker for providing a warning sound in addition to the text message. The notification means may notify a user at a position apart from the laundry apparatus of replacement or cleaning time of the collection portion.

Hereinafter, the structure of the exhaust type drier to which the above-described filter assembly is applicable will be described first, and then the structure of the washing apparatus capable of washing and drying will be described.

FIG. 6 shows a structure of an exhaust-type dryer. In the exhaust-type dryer, hot air is supplied into the drum after the air outside the housing space is heated by a heat-exchanging device, and hot air supplied into the drum is heat- It is thrown out of the receiving space.

On the other hand, if the foreign matter is discharged from the air discharged from the drum to the outside of the drum without being filtered, it is necessary to filter the air discharged from the drum even in the case of the exhaust type dryer since the laundry is supplied with lint or dust. have.

Therefore, in the case of the exhaust type, the air supply device preferably includes a discharge duct 41a for discharging the air inside the drum and a supply duct 41b for supplying air into the drum.

In this case, the filter assembly 5 is provided to be accommodated in the discharge duct 41a through the attaching / detaching part 251 of the front supporting part 25 so as to filter the foreign substances contained in the air discharged from the drum And the heat exchanger is provided in the supply duct 41b.

FIG. 7 is a conceptual diagram of a circulating type washing machine capable of washing and drying. In this case, it is preferable that a tub 23 in which the drum 21 is accommodated is further provided in the cabinet 1, and the duct 41 of the air supply device is communicated to the front and rear of the tub 23 .

In other words, in the case of the drying and washing machine provided with the tub, the structure such as the front support portion and the rear support portion is unnecessary. Therefore, it is preferable that the filter assembly 5 is detachably attached to the suction port 411 of the duct, and the drum motor 211 is provided on the rear wall of the tub.

The drum motor 211 shown in Fig. 7 is a direct-coupled motor whose rotation axis is directly connected to the back surface of the drum 21, or the structure disclosed in the drawings does not need to limit the structure of the drying and washing machine.

That is, the drum includes a drum rotation shaft passing through the tub, the drum rotation shaft is provided with a driven pulley, and the drum motor may be provided in a form of transmitting the power of the drum motor to the driven pulley through a belt or a chain.

Although not shown in the drawing, in the case of the exhaust type drying and washing machine, an exhaust duct communicating with the tub 23 and a supply duct are provided. When the filter assembly is detachably attached to the exhaust duct, Is omitted.

The present invention may be embodied in various forms without departing from the scope of the invention. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: Washing device 1: Cabinet 3: Door
4: air supply 5: filter assembly 6:
51: filter housing 511: inlet hole 513: filter
515: discharge hole 517: stopper 53: foreign body receiving portion
55: Brush unit 551: Brush 553:

Claims (18)

A receiving space for accommodating clothes;
A heat exchange device for supplying hot air to the accommodation space;
A duct having a suction port communicating with the accommodating space such that air in the accommodating space is discharged to the outside of the accommodating space;
A filter housing provided in the duct, a filter provided on at least one side of the filter housing to filter foreign substances in the air, a foreign matter receiving part detachable from the filter housing and storing a foreign matter discharged to the outside of the filter housing, A filter housing rotatably provided inside the filter housing and moving foreign matter in the filter housing to the foreign body accommodating portion so as to be compressed in the foreign body accommodating portion, And a stopper protruding from the filter so as to contact the brush unit when the brush unit is rotated forward or reverse within the predetermined angle range,
The brush unit
And a rotation shaft passing through the filter, a shaft insertion portion in which the rotation shaft is received, and a shaft insertion portion having one end coupled to the shaft insertion portion and the other end rotating in the predetermined angular range, And a stopper accommodating portion for accommodating the stopper when the brush is rotated by the predetermined angle so that one end of the outer circumferential surface of the shaft insertion portion is inserted along the circumferential direction of the shaft insertion portion so as to be in contact with the stopper, And a washing device for washing laundry. delete The method according to claim 1,
Wherein the predetermined angle range is set so that the normal and reverse rotation areas of the brush unit have areas overlapping with the storage areas provided by the foreign body accommodation part. The method according to claim 1,
The filter housing
An inlet hole communicating with the inlet, and a discharge hole through which the foreign matter filtered by the filter is discharged to the outside of the filter housing. 5. The method of claim 4,
The foreign-
A connection portion that is detachable from the discharge hole, and a collecting portion that receives a foreign matter discharged from the filter housing. 6. The method of claim 5,
Wherein the collecting part is provided in the form of a mesh. 5. The method of claim 4,
Wherein the filter is a pair of nets provided in the filter housing and facing each other with the inlet hole therebetween. The method according to claim 1,
The brush unit
Further comprising a motor for rotating the rotary shaft in a predetermined angle range. 9. The method of claim 8,
Wherein the motor changes the direction of rotation when the brush contacts the stopper. delete 10. The method of claim 9,
Wherein the filter further includes an axial through hole through which the rotary shaft passes, and the stopper is protruded from the outer peripheral surface of the axial through hole. The method according to claim 1,
Further comprising a sensing unit for determining whether or not an amount of the foreign matter stored in the foreign-matter receiving unit exceeds an amount of foreign matter that can be accommodated. 13. The method of claim 12,
Wherein the sensing unit comprises: position detecting means for determining whether the brush unit is normally or reversely rotated within an angular range smaller than the predetermined angle range; and position detecting means for detecting whether the brush unit is rotated in the normal or reverse direction within an angle range smaller than the predetermined angle range, And a notification means for displaying the message on the display means. 10. The method of claim 9,
Further comprising a sensing unit for indicating to the outside of the washing machine whether or not the amount of the foreign matter stored in the foreign-matter accommodating unit exceeds an amount of the acceptable foreign matter. 15. The method of claim 14,
The detecting unit may include a position detecting unit provided at the same position as the stopper to sense contact of the brush and an informing unit for indicating the outside of the washing unit when the position detecting unit fails to detect the contact of the brush Characterized in that The method according to claim 1,
Wherein the duct further comprises a discharge port for supplying the air introduced into the suction port to the accommodation space,
Wherein the heat exchanger is disposed inside the duct, and the filter assembly is disposed between the inlet and the heat exchanger. The method according to claim 1,
Further comprising a supply duct for supplying air outside the accommodation space into the accommodation space, wherein the heat exchange apparatus is provided in the supply duct. The method according to claim 1,
Wherein the filter assembly is detachably attached to the suction port.

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