KR20220121056A - Laundry apparatus - Google Patents

Abstract

A clothing treatment apparatus comprises: a cabinet having an inlet into which clothing is inserted on the front thereof; a drum rotatably provided in the cabinet, and providing a space in which the clothing is accommodated; a hot air supply unit arranged on the outside of the drum to supply hot air into the drum; a rear plate forming the rear surface of the cabinet, and including a duct unit dented backward to have an opened front surface and guide the hot air supplied from the hot air supply unit into the drum; a driving unit coupled to the back of the rear plate, provided to be surrounded by the duct unit, and providing power for rotating the drum; and a rear cover provided to cover the back of the rear plate. At least a portion of the rear cover has a shape corresponding to the duct unit to cover the duct unit and the driving unit, and the rear cover can expose a portion of the rear surface of the rear plate excluding the driving unit and the duct unit to the outside. Accordingly, the rear cover can protect the duct unit and the driving unit from an external impact, and the volume can be minimized.

Description

Clothes processing equipment {LAUNDRY APPARATUS}

The present invention relates to a laundry treatment apparatus, and relates to a laundry treatment apparatus having a driving unit that is directly connected to a drum for accommodating clothing and is capable of rotating the drum.

The laundry treatment apparatus is a generic term for a washing machine for washing clothes (objects to be washed or objects to be dried), a dryer for drying clothes, and devices capable of both washing and drying clothes.

The washing machine is provided to include a tub for storing water, a washing drum provided inside the tub to store clothes, and a driving unit (washing driving unit) that rotates the washing drum, and the dryer includes a drying drum for storing clothes, the drying drum In general, it is provided to include a driving unit (drying driving unit) that rotates the dryer, a heat exchange unit for supplying hot air to the drying drum to remove moisture from clothes, and a hot air flow path through which the hot air flows.

Referring to Korean Patent Laid-Open No. 10-2014-0145431, the washing driving unit may be fixed to the tub. In order to wash or spin clothes, it is necessary for the washing driving unit to control the rotational speed of the washing drum to be high or to change the rotational direction of the washing drum. It has a controllable effect.

On the other hand, referring to Korean Patent Laid-Open No. 10-2019-0121656, the drying driving unit includes a motor, a pulley fixed to the rotation shaft of the motor, and a belt (power transmission unit) connecting the rotational motion of the pulley to the drying drum. may be provided to do so.

That is, the conventional drying driving unit generally has a structure connected to the drying drum through a power transmission unit such as a belt. Specifically, the conventional drying driving unit is fixed to a base supporting the lower portion of the laundry treatment apparatus, and is designed and manufactured in a structure that rotates the drying drum through a belt or the like. This is because the dryer may rotate the drying drum through a power transmission unit such as a belt because the need to maintain a high rotational speed of the drying drum or change the rotation direction of the drying drum is low.

However, if the number of rotations and the direction of rotation of the drying drum can be changed, the movement of clothes inside the drying drum can be controlled, so that the drying time can also be shortened and the drying performance of the dryer can be expected to be improved.

However, unlike the washing machine, the dryer does not have a tub, so a structural design for fixing the driving unit may be an important factor. In addition, if the driving unit is coupled to the rear surface of the drying drum, the structural design of the dryer to guide the hot air to the rear surface of the drying drum may be an important factor.

That is, a configuration for guiding the hot air to the rear surface of the drying drum may be required. The configuration for guiding the hot air to the rear of the drying drum may be disposed at the rear of the cabinet or form the rear of the cabinet to guide the hot air to the rear of the drying drum.

However, the configuration for guiding the hot air to the rear of the drying drum may be heated by the hot air. In addition, in the configuration for guiding the hot air to the rear surface of the drying drum, the driving unit may be directly coupled to directly support the driving unit.

Due to this, if the user comes into contact with the configuration for guiding the hot air to the rear of the drying drum, the user may be injured such as burns. In addition, the hot air may be transmitted to the outside and adversely affect other household appliances, plants and furniture disposed around the dryer. In addition, noise and vibration may be transmitted to the outside by the driving unit attached to the configuration for guiding the hot air to the rear surface of the drying drum. A user may feel unpleasant due to noise and vibration.

Accordingly, there is an increasing need for a structure in which a configuration for guiding hot air to the rear of the drying drum is not exposed to the outside in order to prevent user injury and increase user convenience.

In addition, in the configuration for guiding the hot air to the rear of the drying drum, it may be desirable to block heat exchange to the outside as much as possible for drying efficiency. On the other hand, as the driving unit continuously rotates the drum between operations of the dryer, heat may be generated, and heat dissipation of the driving unit may be related to efficient operation of the dryer.

Accordingly, a structural design capable of insulating a configuration for guiding hot air to the rear surface of the drying drum and dissipating heat from the driving unit may be an essential element in the dryer. That is, research on a structural design capable of insulating a configuration for guiding hot air to the rear surface of the drying drum and dissipating heat from the driving unit is being actively conducted.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus in which a reducer is fixed to a rear plate and a motor unit is fixed to and supported by the reducer.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus capable of efficiently supplying hot air into a drum through a duct portion of a rear plate.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus capable of preventing injury to a user due to contact with the duct through a rear cover provided to cover the duct.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus capable of preventing damage to a driving unit due to an external impact through a rear cover provided to cover the driving unit.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus including a rear cover for insulating a duct part.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus including a rear cover for dissipating heat from a driving unit.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus including a rear cover in which a drain pipe for guiding condensed water condensed in a heat exchanger to a water collecting unit may be disposed outside, and the rear cover is provided to cover the drain pipe.

An example for solving the above-described problem is to provide a laundry treatment apparatus in which a motor unit for providing power to rotate a drum and a reducer for converting power of the motor unit are combined.

The motor unit may be supported by being directly coupled to the reducer, and may be supported by being coupled to only the reducer. Accordingly, the reducer itself may be a vibration reference of the motor unit. In addition, the reducer may be coupled to the rear plate to receive a strong support force.

In addition, the driving unit (the motor unit and the reducer) may be provided to be surrounded by the duct unit to be protected from external impact by the duct unit.

In addition, the rear cover is provided to cover the duct unit and the driving unit to protect the duct unit and the driving unit from external impact. Furthermore, the rear cover is provided to cover only a portion of the rear plate rather than covering the entire rear plate, thereby improving economic efficiency in manufacturing.

In addition, the rear cover may partition the duct part and the driving part through the driving part rib. The driving part rib may thermally insulate the duct from the outside, and the driving part may communicate with the outside to dissipate heat. In addition, the driving part rib can support the driving part more effectively from external impact.

Specifically, a cabinet having an inlet through which clothes are put in the front, a drum rotatably provided inside the cabinet and providing a space in which the clothes are accommodated, and a drum disposed outside the drum to supply hot air into the drum A hot air supply unit, a rear plate that forms a rear surface of the cabinet, and is recessed to the rear to open a front surface and includes a duct unit for guiding the hot air supplied from the hot air supply unit into the drum, and is coupled to the rear of the rear plate a driving unit provided to be surrounded by the duct unit and providing power to rotate the drum; and

It may include a rear cover provided to cover the rear of the rear plate.

At least a part of the rear cover may be provided in a shape corresponding to the duct part to cover the duct part and the driving part, and may expose a part of the rear surface of the rear plate except for the duct part and the driving part to the outside.

In addition, the duct part faces the rear surface of the drum and includes a flow part in which a space in which the hot air flows is formed between the rear surface of the drum, and the drum is provided on the rear surface of the drum and the hot air from the flow part includes a drum inlet receiving have.

In addition, it further comprises a fan duct for guiding the hot air supplied from the hot air supply unit to the duct by connecting the hot air supply unit and the duct unit, the duct unit extending from the flow unit toward the hot air supply unit, the fan duct It may further include an inlet into which at least a part of the part is inserted.

In addition, the rear plate is provided to be surrounded by the moving unit and includes a mounting unit to which the driving unit is coupled, the rear cover protruding from one surface of the rear cover toward the rear plate, and the mounting unit inside the moving unit. and may include a driving unit rib provided to face the driving unit and surround the driving unit.

In addition, the mounting portion is provided at the center of the mounting portion and includes a mounting accommodating portion to which the driving unit is coupled, and a mounting periphery that surrounds the mounting accommodating portion and is connected to the moving portion, wherein the mounting accommodating portion is forward than the mounting perimeter. It protrudes, and the driving part rib may be provided to face the mounting circumferential part and surround the driving part.

In addition, the driving unit rib has a heat dissipation space formed therein, the rear surface is opened to expose the heat dissipation space to the outside, and the protruding end is in contact with the mounting periphery, and the driving unit is the driving unit rib and the rear cover may be spaced apart from the front of the

In addition, the driving part rib is formed through a rib inner peripheral part facing the driving part and the rib inner peripheral part surrounding the heat dissipation space from the inside, and extends in a protruding direction of the driving part rib, and includes the mounting part and the heat dissipation space. It may include a rib slit part for communicating the.

In addition, the rear cover may further include a cover accommodating part facing the driving part and connected to the rib inner peripheral part and including a plurality of heat dissipation holes for communicating the mounting part with the outside.

In addition, the cover accommodating part is located in the center of the cover accommodating part, and surrounds the cover recessed part and the cover recessed part to be recessed away from the driving part, and may include a cover heat dissipation part in which the plurality of heat dissipation holes are radially disposed.

In addition, the driving unit may include a driving rotation shaft coupled to the rear surface of the drum through the mounting receiving part, and the cover recessed part may be provided at a position corresponding to the driving rotation shaft.

In addition, the rear plate further includes a rear cover coupling part that is recessed rearwardly surrounding the duct part from the outside of the upper duct part, the duct part is recessed further rearward than the rear cover coupling part, and the rear cover is the rear cover It may be inserted into the coupling portion to be coupled.

In addition, the rear cover includes a duct cover provided to cover the duct part, and a coupling part cover extending from the duct cover and provided to cover the rear cover coupling part, and the coupling part cover is coupled to the rear surface of the rear plate. and an inner circumferential surface may be provided to face the outer circumferential surface of the rear cover coupling portion.

In addition, the hot air supply unit is disposed inside the hot air supply unit and circulates the hot air to the inside of the drum and the hot air supply unit, the blowing fan is provided therein and the hot air flows through the blowing fan housing and the blowing fan At least a part of the blower fan housing is accommodated in the duct part accommodates the blower fan driving part, and the duct part accommodates the blowing fan driving part, which is coupled to the blowing fan at the rear of the housing and provides power to the blowing fan. and can be placed.

In addition, the blowing fan housing is disposed on a lower surface of the cabinet, the rear cover coupling part is coupled to the lower surface of the cabinet by opening a lower end facing the blowing fan housing, and the coupling part cover is coupled to the rear cover coupling part The lower end may be opened correspondingly to be coupled to the rear cover coupling part.

In addition, a water vapor removal unit provided in the hot air supply unit and provided to remove water vapor from the hot air discharged from the drum, a water collecting unit provided inside the cabinet, the condensed water formed in the water vapor removal unit is introduced and stored; provided in the cabinet, receiving the condensed water from the water collecting unit, and connecting the water collecting unit and the water storage unit in which the condensed water is stored to provide a path through which the condensed water of the water collecting unit flows to the water storage unit It further includes a drainage unit including a drainage pipe, wherein the drainage pipe includes a drainage exposed pipe disposed outside the rear plate, and both ends of the drainage exposed pipe pass through the rear plate to be connected to the water collecting unit and the water storage unit have.

In addition, the drain exposed pipe may extend along an outer circumferential surface of the duct part.

In addition, the rear cover may cover the drain exposed pipe so that the drain exposed pipe is shielded from the outside.

In addition, the drain pipe includes an external discharge pipe provided in the drain exposure pipe to allow the condensed water flowing through the drain exposure pipe to be discharged to the outside, and the rear cover includes one side of the rear cover penetrating through the outside. It may include a through-cover cover for exposing the discharge pipe to the outside.

In addition, the rear cover may further include a cover opening and closing part which is provided to open and close the cover penetration part and selectively exposes the external discharge pipe to the outside.

In addition, the cover opening/closing unit includes an opening/closing body part provided in a shape corresponding to the cover penetration part, an opening/closing hinge part rotatably connecting the opening/closing body part to the rear cover, and an opening/closing hook part protruding from the end of the opening/closing body part and the rear plate further includes an opening/closing hook accommodating part positioned outside the rear cover coupling part and provided through the rear surface of the rear plate, and the opening/closing hook part may be inserted into the opening/closing hook accommodating part to be coupled thereto.

According to embodiments of the present invention, it is possible to maintain the motor providing rotational power to rotate the drum and the rotation shaft of the reducer for converting the rpm and torque of the rotational power.

In addition, according to embodiments of the present invention, the reducer and the motor may be inclined at the same time or vibrate at the same time.

In addition, according to embodiments of the present invention, the reducer may be coupled to the rear plate to receive strong support.

In addition, according to embodiments of the present invention, hot air can be efficiently supplied into the drum through the duct.

In addition, according to embodiments of the present invention, the duct portion is prevented from being exposed to the outside by the rear cover, thereby preventing injury to the user.

In addition, according to embodiments of the present invention, the driving unit (reducer and motor) is prevented from being exposed to the outside by the rear cover, thereby preventing damage to the driving unit.

In addition, according to embodiments of the present invention, the duct part is insulated by the driving part rib provided in the rear cover, so that drying efficiency can be increased.

In addition, according to embodiments of the present invention, the driving part can be radiated through the rib slit part and the heat radiation hole provided in the driving part rib.

In addition, according to embodiments of the present invention, the internal efficiency can be increased by guiding the condensed condensate to the water storage unit through a drain pipe disposed outside.

In addition, according to embodiments of the present invention, the drain pipe is prevented from being exposed to the outside by the rear cover, thereby preventing the drain pipe from being damaged.

1 is a perspective view of a laundry treatment apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing an internal cross-section of the laundry treatment apparatus shown in FIG. 1 .
3 is an exploded perspective view of a laundry treatment apparatus according to an embodiment of the present invention.
4 is a view showing a hot air supply unit and a rear plate according to an embodiment of the present invention.
5 is a view illustrating a rear plate of a laundry treatment apparatus according to an embodiment of the present invention.
6 is a view showing a rear plate and a fan duct according to an embodiment of the present invention.
7 is an exploded perspective view of a rear plate, a fan duct part, and a driving part according to an embodiment of the present invention.
FIG. 8 is an exploded perspective view of the rear plate, the fan duct part, and the driving part shown in FIG. 7 as viewed from another side.
9 is a view showing a rear cover according to an embodiment of the present invention.
10 is a view showing that the rear cover according to an embodiment of the present invention is coupled to the rear plate.
11 is a view showing a rear cover coupling portion of the rear plate according to an embodiment of the present invention.
12 is a cross-sectional view of the rear cover coupled to the rear plate according to an embodiment of the present invention.
13 and 14 are views showing a driving part rib of the rear cover according to an embodiment of the present invention.
15 is a cross-sectional view in which the rear cover according to FIGS. 13 and 14 is coupled to the rear plate.
16 is a view showing a water reservoir, a drain pipe, and a return pipe according to an embodiment of the present invention.
17 is a view showing a rear cover and a cover opening and closing part provided to cover the drain pipe and the return pipe according to an embodiment of the present invention.
18 is a view showing a fan duct unit according to an embodiment of the present invention.
19 is a view illustrating a fan duct unit connected to a hot air supply unit according to an embodiment of the present invention.
20 is a view showing a fan duct unit and a duct unit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

In this specification, duplicate descriptions of the same components will be omitted.

Also, in this specification, when a component is referred to as 'connected' or 'connected' to another component, it may be directly connected or connected to the other component, but other components in the middle It should be understood that there may be On the other hand, in the present specification, when it is mentioned that a certain element is 'directly connected' or 'directly connected' to another element, it should be understood that the other element does not exist in the middle.

In addition, the terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention.

Also in this specification, the singular expression may include the plural expression unless the context clearly dictates otherwise.

Also, in this specification, terms such as 'include' or 'have' are only intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more It should be understood that the existence or addition of other features, numbers, steps, acts, components, parts, or combinations thereof, is not precluded in advance.

Also in this specification, the term 'and/or' includes a combination of a plurality of listed items or any of a plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

1 is a perspective view of a laundry treatment apparatus according to an embodiment of the present invention. FIG. 2 is a view showing an internal cross-section of the laundry treatment apparatus shown in FIG. 1 .

1 and 2 , the laundry treatment apparatus according to an embodiment of the present invention may include a cabinet 100 that forms an exterior.

Specifically, the cabinet 100 includes a front plate 410 forming a front surface, a side plate 141 forming both side surfaces, an upper plate 145 forming an upper surface, and a lower plate 147 forming a lower surface. can do.

In the cabinet 100 , the front plate 410 , the side plate 141 , the upper plate 145 , and the lower plate 147 are connected to each other to form a space therein. Also, the cabinet 100 may further include a rear plate 420 forming a rear surface, and the rear plate 420 may be coupled to the rear to shield the interior.

That is, the rear plate 420 may form the rear surface of the cabinet 100 . However, referring to FIG. 3 , a rear cover 430 , which will be described later, may be coupled to the rear plate 420 , and the rear cover 430 may form a rear surface of the cabinet 100 . In addition, the rear cover 430 and the rear plate 420 may form a rear surface of the cabinet together.

As the inside of the cabinet 100 can be shielded from the outside due to the rear plate 420 , the drum 200 , the hot air supply unit 900 , and the water collecting unit 170 may be disposed therein, and the cabinet 100 . ) The components arranged inside can be prevented from being exposed to the outside.

The front plate 410 and the rear plate 420 will be described later in detail.

Meanwhile, the cabinet 100 may further include a front panel 110 coupled to the front of the front plate 410 . The front panel 110 is coupled to the front surface of the front plate 410 to prevent the front plate 410 and the components coupled to the front plate 410 from being exposed to the outside.

That is, the front panel 110 may form the front of the cabinet 100 together with the front plate 410 . The front panel 110 may be formed integrally with the front plate 410 or may be provided separately. 1 and 2, the front panel 110 and the front plate 410 are shown to be separately provided, but it should not be construed as being limited thereto.

The front panel 110 may include an inlet 111 provided to communicate with the drum 200 to be described later and a door 130 rotatably coupled to the cabinet to open and close the inlet 111 .

A control panel 117 may be installed on the front panel 110 . The control panel 117 may include an input unit 118 for receiving a control command from a user, and a display unit 119 for outputting information such as a control command selectable by the user. The control command may include a drying course or a drying option capable of performing a series of drying strokes. The control panel 117 may be provided with a main control unit for controlling a command for performing a drying course or drying option.

The input unit 118 is provided to include a power supply request unit for requesting power supply to the laundry treatment apparatus, a course input unit for allowing a user to select a desired course from among a plurality of courses, and an execution request unit for requesting the start of the course selected by the user can be

The display unit 119 may be provided to include at least one of a display panel capable of outputting text and figures, and a speaker capable of outputting a voice signal and sound.

Meanwhile, the clothes treatment apparatus according to an embodiment of the present invention may include a water storage unit 7 provided to separately store moisture generated in the process of drying clothes. The water storage unit 7 may include a water storage tank provided to be withdrawn from one side of the front panel 110 to the outside. The water storage tank may be provided to collect condensed water received from a drain pump to be described later.

The user may remove the condensed water by withdrawing the water storage tank from the cabinet 100 , and then re-install it in the cabinet 100 . Accordingly, the laundry treatment apparatus according to an embodiment of the present invention may be disposed in any place where a sewer or the like is not installed.

Meanwhile, the water reservoir 7 may be disposed on the door 130 . Accordingly, when the user withdraws the water storage tank from the front panel 110 , the user can bend the waist relatively less.

The laundry treatment apparatus according to an embodiment of the present invention may further include a filter member capable of removing foreign substances from the circulating circulation passage. The front panel 110 may be provided with a filter mounting hole 113 provided so that the filter member is drawn out or inserted.

3 is an exploded perspective view of a laundry treatment apparatus according to an embodiment of the present invention.

2 and 3 , the laundry treatment apparatus according to an embodiment of the present invention includes a drum 200 accommodated in a cabinet 100 to accommodate clothes, and a driving unit M for rotating the drum 200 . and a hot air supply unit 900 provided to supply hot air to the drum 200 .

The drum 200 may be provided in a cylindrical shape to accommodate clothes. In addition, since water does not need to be put into the drum 200 and water condensed inside the drum 200 does not need to be discharged to the outside, the through-hole provided along the circumference of the drum 200 is omitted. can

The driving unit M may be provided in direct connection with the drum 200 to rotate the drum 200 . For example, the driving unit M may be provided as a direct drive unit (DD) type. Accordingly, the driving unit M may control the rotational direction of the drum 200 or the rotational speed of the drum 200 by directly rotating the drum 200 by omitting the configuration of the belt and the pulley.

In the case of the DD type washing machine, the driving unit M may be coupled to and fixed to the tub accommodating the drum 200 , and the drum 200 may be coupled to the driving unit M and supported by the tub. However, since the laundry treatment apparatus according to an embodiment of the present invention is provided to intensively perform a drying cycle, a tub fixed to the cabinet 100 to accommodate the drum 200 is omitted.

Accordingly, the laundry treatment apparatus according to an embodiment of the present invention may further include a support unit 400 provided to fix or support the drum 200 or the driving unit M inside the cabinet 100 . The support 400 may include the aforementioned front plate 410 and the rear plate 420 .

The front plate 410 may be disposed in front of the drum 200 , and the rear plate 420 may be disposed in the rear of the drum 200 .

The front plate 410 and the rear plate 420 may be provided in a plate shape and disposed to face the front and rear of the drum 200 . The distance between the front plate 410 and the rear plate 420 may be the same as the length of the drum 200 or may be set longer than the length of the drum 200 .

The drum 200 may include a drum inlet 211 having an open front. The drum inlet 211 may communicate with the inlet 111 provided in the front panel 110 through the front plate 410 . As the drum inlet 211 is provided on the front of the drum 200 , the driving unit M may be installed on the rear plate 420 and connected to the rear of the drum 200 .

The rear plate 420 may be provided such that the driving unit M is mounted and supported in an area facing the rear surface of the drum 200 . Accordingly, the driving unit M may be provided to rotate the drum 200 in a state in which the position is stably fixed through the rear plate 420 .

At least one of the front plate 410 and the rear plate 420 may rotatably support the drum 200 . At least one of the front plate 410 and the rear plate 420 may rotatably accommodate the front end or the rear end of the drum 200 .

For example, the front of the drum 200 may be accommodated in the front plate 410 and rotatably supported, and the rear of the drum 200 is spaced apart from the rear plate 420 and mounted on the rear plate 420 . It may be connected to the driving unit M and indirectly supported by the rear plate 420 .

Accordingly, the area in which the drum 200 is in contact with or rubbed against the support 400 is minimized, and unnecessary noise or vibration may be prevented from occurring.

Of course, the drum 200 may be provided to be rotatably supported on both the front plate 410 and the rear plate 420 .

Meanwhile, in the laundry treatment apparatus according to an embodiment of the present invention, air inside the drum 200 is discharged through the front of the drum 200 with respect to the drum 200 , and the discharged air is discharged outside the drum 200 . It may include a circulation path introduced through the rear surface of the drum 200 again.

The hot air supply unit 900 is provided outside the drum so that the air discharged from the inside of the drum 200 flows, and may form a part of a circulation passage. For example, the hot air supply unit 900 may be disposed on the lower plate 147 of the cabinet 100 .

The hot air supply unit 900 includes an evaporator 951 that cools the air discharged from the inside of the drum 200 to condense water vapor contained in the air, and a condenser 952 that heats the air passing through the evaporator 951. can The hot air supply unit 900 may be provided to supply the air passing through the condenser 952 back into the drum 200 .

The air discharged from the inside of the drum 200 is changed in temperature and water vapor content by the hot air supply unit 900 and flows along the circulation path to dry the clothes accommodated in the drum 200 through continuous circulation. .

The air located inside the drum 200 may be hot air circulating through the circulation passage. That is, the air that is changed in properties by the hot air supply unit 900 and circulates through the circulation passage can be called hot air. Air and hot air may be used as the same meaning hereinafter for convenience of description. A specific configuration of the hot air supply unit 900 will be described later.

The drum 200 may be disposed above the hot air supply unit 900 so that the drum inlet 211 of the drum 200 may be disposed at a relatively high position inside the cabinet 100 . The user can easily take out the clothes located inside the drum 200 .

As described above, the hot air supply unit 900 may be provided with a plurality of heat exchangers for cooling or heating the hot air flowing therein, and removes foreign substances attached to the heat exchanger using condensed water in which water vapor contained in the hot air is condensed. A washing unit 940 may be installed.

Referring back to FIGS. 2 and 3 , the drum 200 of the laundry treatment apparatus according to an embodiment of the present invention is not rotated indirectly by being coupled to a belt or the like, but by being directly coupled to the driving unit M to rotate. Therefore, unlike the conventional drum of a dryer that is provided in a cylindrical shape provided with an open front and rear, the drum 200 of the laundry treatment apparatus according to an embodiment of the present invention has a rear shielded and is directly connected to the driving unit M. provided to be coupled.

Specifically, the drum 200 includes a drum body 210 provided in a cylindrical shape to accommodate clothes, and a drum rear surface 220 coupled to the rear of the drum body 210 to form the rear surface of the drum 200 . can do. That is, the drum rear surface 220 may mean the rear surface of the drum 200 .

The drum rear surface 220 is provided to shield the rear of the drum body 210 may be coupled to the drum rotation shaft 650 of the driving unit (M). That is, the rear drum 220 may be connected to the driving unit M to receive power from the drum rotating shaft 650 to rotate the drum body 210 . As a result, a drum inlet 211 into which clothes are put may be formed in the front of the drum body 210 and the rear may be shielded by the rear drum 220 .

2 schematically shows a bushing part. Referring back to FIG. 2 , the bushing unit 300 may be coupled to the drum rear surface 220 or provided integrally. The drum rotating shaft 650 of the driving unit M is coupled to the bushing unit 300 , and the drum rear surface 220 may be coupled to the drum rotating shaft 650 through the bushing unit 300 . The drum rotating shaft 650 is coupled to the rear of the drum rear surface 220 through the bushing portion 300 or penetrates the drum rear surface 220 through the bushing portion 300 so that the front end is positioned inside the drum 200. can

When the drum rotating shaft 650 passes through the drum 200, the front end of the drum rotating shaft 650 may be coupled to a fixing fastening means provided to fix the drum rotating shaft 650 in the axial direction. In addition, a cap for preventing the drum rotating shaft 650 from contacting the clothes and suppressing heat transfer may be installed inside the drum 200 .

As a result, the drum 200 of the laundry treatment apparatus according to an embodiment of the present invention may be rotated by directly coupling the drum rear surface 220 to the driving unit M, rather than rotating by a belt or the like.

Accordingly, even if the driving unit M changes the rotational direction or the rotational acceleration is high, the drum 200 of the laundry treatment apparatus according to the embodiment of the present invention can be immediately reflected and rotated.

Meanwhile, the front plate 410 may include an input communication hole 412 penetrating through the front plate 410 to accommodate the front of the drum body 210 or the drum inlet 211 . A gasket 413 for accommodating the drum body 210 may be provided on the outer peripheral surface of the input communication hole 412 .

The gasket 413 may rotatably support the drum inlet 211 of the drum body 210 and may be provided in contact with the outer peripheral surface of the drum inlet 211 . The gasket 413 may prevent the hot air inside the drum 200 from leaking between the drum body 210 and the front plate 410 .

The gasket 413 may be provided with a plastic resin series or an elastic material, and a separate sealing member is additionally coupled to the inner circumferential surface of the gasket 413 to allow clothes or hot air to pass through the drum inlet 211 of the drum body 210 to the front plate. It can be prevented from escaping to 410 .

On the other hand, the gasket 413 or the inner peripheral surface of the input communication hole 412 communicates with the drum body 210, a duct communication hole 419 through which the hot air injected into the drum body 210 can be discharged may be formed. The front plate 410 may have a front flow path connecting the duct communication hole 419 and the hot air supply unit 900 therein.

Accordingly, the duct communication hole 419 may guide the hot air discharged from the drum body 210 to be supplied to the hot air supply unit 900 .

A filter member may be installed in the front flow path to block foreign substances or lint discharged from the drum 200 from being input to the hot air supply unit 900 as described above.

The front plate 410 is provided in contact with the outer peripheral surface of the drum body 210, the front wheel 415 for rotatably supporting the drum 200 may be installed. The front wheel 415 may be provided to support the outer circumferential surface of the inlet of the drum body 210 , and may be provided with a plurality of spaced apart along the outer circumferential surface of the input communication hole 412 . The front wheel 415 may be provided to rotate together when the drum 200 rotates while supporting the lower portion of the drum body 210 .

The front plate 410 may include a front tank support hole 414 , and the water storage tank of the water storage unit 7 may be inserted and supported in the front tank support hole 414 . The front tank support hole 414 may be provided in an area corresponding to a portion of the front panel 110 where the water reservoir 7 is disposed, and may be formed through the front plate 410 .

The rear plate 420 may include a rear tank support hole 421 provided at a position corresponding to the front tank support hole 414 . The water storage tank may be supported by being inserted into the front tank support hole 411 and the rear tank support hole 421 together. The rear tank support hole 421 may be formed through the rear plate 420 .

Referring back to FIG. 2 , as described above, the hot air supply unit 900 may form a part of a circulation passage for circulating the hot air to the drum 200 . That is, the hot air supply unit 900 may include a hot air flow path unit 920 through which the hot air discharged from the drum 200 can circulate outside the drum 200 .

The hot air passage unit 920 may be provided in a duct shape disposed outside the drum 200 . The hot air passage unit 920 communicates with the duct communication hole 419 to provide a supply duct 921 to which the hot air of the drum 200 is supplied, and a moving duct 922 through which the hot air supplied from the supply duct 921 moves. , may include an exhaust duct 923 through which the hot air passing through the moving duct 922 is discharged.

The supply duct 921 may be provided to communicate with the duct communication hole 419 of the front plate 410 to communicate with a front flow path installed inside the front plate 410 . The moving duct 922 may be provided extending from the end of the supply duct 921 toward the rear of the drum 200 . The discharge duct 923 may be provided at the end of the moving duct 922 .

Meanwhile, the hot air supply unit 900 may include a heat pump 950 capable of cooling the hot air to remove water vapor included in the hot air and reheating the hot air from which the water vapor has been removed.

The heat pump 950 is installed in the moving duct 922 to cool the hot air and condensate the water vapor contained in the hot air. is disposed and may include a condenser 952 for heating the hot air again.

The heat pump 950 includes an expansion valve that cools the refrigerant passing through the condenser 952 and guides it back to the evaporator 951, and a compressor that pressurizes and heats the refrigerant passing through the evaporator 951 and supplies it to the condenser 952 (953) may be further included. The compressor 953 may be disposed outside the moving duct 922 . That is, the plurality of heat exchangers installed in the above-described hot air supply unit 900 may mean an evaporator 951 and a condenser 952 .

Meanwhile, the hot air supply unit 900 may further include a blower unit 960 capable of providing power to circulate the hot air to the drum 200 .

The blower 960 may be connected to the hot air flow path 920 . That is, the blower 960 may be connected to the rear of the discharge duct 923 , and may receive hot air from the discharge duct 923 to accelerate the hot air and guide it to the rear of the drum 200 .

The blower 960 may include a blowing fan 961 that accelerates the hot air in contact with the hot air, and a blower fan housing 963 connected to the exhaust duct 923 and having the blowing fan 961 disposed therein.

One side of the blowing fan housing 963 may be opened and connected to the discharge duct 923 , and the other side may be opened to guide hot air to the rear of the drum 200 . For example, as shown in FIG. 2 , the blowing fan housing 963 has an open front and may be connected to the discharge duct 923 , and may be opened upwards to guide hot air to the rear of the drum 200 .

In addition, the blowing unit 960 may further include a blowing fan driving unit 965 coupled to the blowing fan housing 963 . The blowing fan driving unit 965 is coupled to the rear of the blowing fan housing 963 and is connected to the blowing fan 961 to provide power to rotate the blowing fan 961 .

Meanwhile, FIG. 4 is a view showing a lower plate and a rear plate according to an embodiment of the present invention.

Referring to FIG. 4 , space efficiency of the lower plate 147 of the cabinet 100 according to an embodiment of the present invention may be increased as the driving unit M is provided on the rear plate 420 .

Specifically, the lower plate 147 of the cabinet 100 may be provided with a configuration different from that of the hot air supply unit 900 . Other configurations may include a water collecting unit 170 and a driving unit M. Other components are not limited to the water collecting unit 170 and the driving unit M, and may be included as long as they can be disposed on the lower plate 147 .

As described above, the hot air supply unit 900 includes the hot air flow path unit 920, the evaporator 951 and the condenser 952 disposed inside the hot air flow path unit 920, and the hot air flow path unit 920. The compressor ( 953 ) and a blower 960 connected to the hot air flow passage 920 .

The lower plate 147 of the cabinet 100 may have a hot air flow passage 920 and a blower 960 through which hot air flows therein may be integrally disposed, and the hot air flow passage 920 and the blower 960 and The water collecting unit 170 and the driving unit M may be disposed to be spaced apart from each other.

In the lower plate 147 of the cabinet 100 according to an embodiment of the present invention, the driving part M is disposed on the rear plate 420 and the driving part M is disposed on the lower plate 147 of the cabinet 100 . Space utilization efficiency can be increased than the case.

That is, in the lower plate 147 of the cabinet 100 according to an embodiment of the present invention, the driving unit M is disposed compared to the case in which the driving unit M is disposed on the lower plate 147 of the cabinet 100 . The size of the existing components can be enlarged by using the space, and the arrangement relationship of the existing components can be made efficiently.

For example, the water collecting unit 170 is provided at the position where the driving unit M is disposed or up to the position where the driving unit M is disposed compared to the case where the driving unit M is disposed on the lower plate 147 of the cabinet 100 . It can be expanded and provided. That is, the water collecting unit 170 is provided to be larger than the case in which the driving unit M is disposed on the lower plate 147 of the cabinet 100 , and thus can store relatively more condensed water.

Meanwhile, referring to FIGS. 2 and 4 , the water collecting unit 170 according to an embodiment of the present invention may be provided in parallel with the evaporator 951 along the lateral direction. In addition, the compressor 953 may be provided in parallel with the condenser 952 in the lateral direction.

Specifically, the hot air passage 920 may extend from the front plate 410 toward the rear plate 420 , and may be provided close to any one of the side plates 141 of the cabinet 100 .

For example, in FIG. 4 , the hot air passage part 920 is shown to be disposed close to the first side plate 1411 . However, this is not limited to interpretation, and the hot air flow path part 920 may be disposed close to the second side plate 1413 . For convenience of description, description will be made based on the fact that the hot air flow path part 920 is disposed close to the first side plate 1411 .

The water collecting unit 170 and the compressor 953 may be disposed outside the hot air flow path unit 920 , and as the hot air flow path unit 920 extends forward and backward and is disposed close to the first side plate 1411 , the second It may be disposed close to the side plate 1413 .

The evaporator 951 and the condenser 952 may be disposed to be spaced apart from each other in the hot air flow passage unit 920 , and the water collecting unit 170 may be disposed in parallel with the evaporator 951 so that condensed water is introduced from the evaporator 951 . distance can be minimized. In addition, the compressor 953 is disposed in parallel with the condenser 952 so that the distance through which the compressed refrigerant is supplied to the condenser 952 can be minimized.

4 shows that as hot air is discharged from the front of the drum 200 , the evaporator 951 is disposed in front of the condenser 952 , and the water collecting unit 170 is disposed in front of the compressor 953 . However, it is not interpreted as being limited thereto, and the arrangement of the evaporator 951 and the condenser 952 may be changed according to the direction in which the hot air is discharged from the drum 200, and correspondingly the arrangement of the water collecting unit 170 and the compressor 9530 The layout may also change.

Meanwhile, referring back to FIG. 4 , the rear plate 420 according to an embodiment of the present invention may include a duct part 423 .

The duct unit 423 may receive the hot air from the hot air supply unit 900 and guide the hot air into the drum 200 .

The duct part 423 may be provided by being recessed backward from one surface of the rear plate 420 . As described above, the rear plate 420 may be located at the rear of the drum 200 . The duct part 423 may be recessed away from the drum 200 from one surface of the rear plate 420 , and one surface of the rear plate 420 may be the front surface of the rear plate 420 .

The duct part 423 may be provided by being depressed from the front to the rear of the rear plate 420 . That is, the duct portion 423 may have a flow space (V) through which the hot air may flow therein, and the front surface may be opened.

From another point of view, the duct part 423 may be provided to protrude backward from the rear surface of the rear plate 420 , and the front surface of the rear-projecting part may be opened, and the flow space may be as much as the rear-projecting part. (V) may be formed. In the flow space (V), the hot air introduced from the hot air supply unit 900 flows, and may guide the hot air into the drum 200 through the rear of the drum 200 .

Specifically, as the hot air is continuously supplied from the hot air supply unit 900 in the flow space V, the hot air may be spread throughout the flow space V. In the duct part 423 , as the hot air diffused throughout the flow space V flows into the drum 200 through the open front surface, the area through which the hot air flows can be maximized. Accordingly, the duct portion 423 may allow the hot air to be efficiently guided into the drum 200 through the flow space (V).

In addition, in the duct part 423 , at least a portion of the fan duct part 850 connecting the hot air supply part 900 and the duct part 423 may be disposed. The fan duct unit 850 may provide the hot air from the hot air supply unit 900 to the duct unit 423 by communicating the hot air supply unit 900 and the duct unit 423 . The fan duct part 850 may be provided by being partially inserted into the flow space V, and may be provided with a supporting force from the duct part 423 in contact with the duct part 423 . The fan duct part 850 will be described later in detail.

Furthermore, the duct part 423 may have a part of the hot air supply part 900 disposed therein. A part of the hot air supply unit 900 may be a rear end as the duct unit 423 is provided on the rear plate 420 , and specifically may be a part of the blower unit 960 described above. The blower 960 may be provided with a part inserted into the flow space V, and may be provided with a supporting force from the duct 423 in contact with the duct 423 .

Meanwhile, FIG. 5 is a view illustrating a rear plate of a laundry treatment apparatus according to an embodiment of the present invention. Specifically, Figure 5 (a) is a perspective view of the rear plate, Figure 5 (b) is a front view of the rear plate, Figure 5 (c) is a rear view of the rear plate.

Referring to FIG. 5A , the duct part 423 according to an embodiment of the present invention may include a flow part 4231 .

The flow unit 4231 may guide the hot air introduced from the hot air supply unit 900 into the drum 200 through the drum rear surface 220 of the drum 200 .

The flow part 4231 may be provided by being recessed backward from one surface of the rear plate 420 facing the drum rear surface 220 . That is, the flow portion 4231 may have a first flow space V1 through which hot air flows therein, and a front surface thereof may be opened. One surface of the rear plate 420 may be the front surface of the rear plate 420 , and the aforementioned flow space V may include a first flow space V1 .

In the flow section 4231, the hot air introduced from the fan duct section 850 flows in the first flow space V1, and the hot air flowing in the first flow space V1 through the drum rear surface 220 facing the drum (200) can be guided inside.

The flow part 4231 may be provided in an annular shape. The above-mentioned annular shape may be understood as forming a closed curve in an extended form. Accordingly, the annular shape may be defined as a closed cross-section surrounded by a closed curve.

Specifically, the flow part 4231 may include a flow outer peripheral part 4231a surrounding the first flow space V1 in which the hot air flows from the outside. That is, the flow outer peripheral portion 4231a may correspond to the outer peripheral surface of the flow portion 4231 in a state in which the flow portion 4231 protrudes backward.

The flow portion 4231 may include a flow inner peripheral portion 4231b that surrounds the first flow space V1 in which the hot air flows from the inside. That is, the flow outer peripheral portion 4231a may correspond to the inner peripheral surface of the flow portion 4231 in a state in which the flow portion 4231 protrudes backward.

In addition, the flow portion 4231 may include a flow depression surface 4232 connecting the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b. The flow depression surface 4232 may correspond to one surface facing the drum rear surface 220 .

The outer flow portion 4231a may be a portion extending from the front to the rear of the rear plate 420 . Based on the radial radius of the flow portion 4231 , the inner flow portion 4231b may be located inside the flow outer portion 4231a and extend from the front to the rear of the rear plate 420 . The flow depression surface 4232 may be a curved surface or may extend in parallel with the front surface of the rear plate 420, and may connect between the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b.

5(c) shows the rear plate of FIGS. 5(a) and 5(b) as viewed from the rear. Referring to FIG. 5(c), the rear plate will be described while looking from the rear.

The outer flow portion 4231a may be a portion protruding backward from the rear surface of the rear plate 420 . The flow inner peripheral portion 4231b is located inside the flow outer peripheral portion 4231a, and may be a portion protruding backward from the rear surface of the rear plate 420 . The flow depression surface 4232 may be a part connecting the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b.

Meanwhile, referring to FIGS. 5A to 5C together, the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b may be provided so that the boundary portion with the front surface of the rear plate 420 is rounded. In addition, the flow outer peripheral portion (4231a) and the flow inner peripheral portion (4231b) may extend in parallel to the rear, as it extends rearward, the distance between the outer flow peripheral portion (4231a) and the inner flow portion (4231b) may be extended so that the closer. . 5, the flow outer peripheral portion (4231a) and the flow inner peripheral portion (4231b) is shown to be closer as it extends rearward, but is not limited thereto. Furthermore, the flow depression surface 4232 may be provided such that a portion connected to the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b is rounded.

When viewed from the front with reference to FIG. 5(b), the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b may be provided in a generally circular shape. For example, if the diameter of the outer flow portion 4231a is D1 and the diameter of the inner flow portion 4231b is D2, D1 may be larger than D2. The flow depression surface 4232 may be an annular surface having an outer diameter of D1 and an inner diameter of D2. The flow part 4231 may have a donut shape as a whole.

Referring to FIG. 3 together, the rear plate 420 may have a driving unit M coupled to the inner side of the flow inner peripheral portion 4231b from the rear side. That is, the inner flow portion 4231b may be provided to surround the driving unit M to protect the driving unit M from external impact.

Meanwhile, FIG. 6 is a view showing a rear plate and a fan duct according to an embodiment of the present invention. Specifically, Fig. 6 (a) is a perspective view of the rear plate to which the fan duct unit is coupled, and Fig. 6 (b) is a front view of the rear plate to which the fan duct unit is coupled.

5(a), 5(b) and 6, the duct part 423 according to an embodiment of the present invention further includes an inlet part 4233 in which the fan duct part 850 can be disposed. may include

The inlet portion 4233 may extend in a shape protruding from the flow portion 4231 . The inlet portion 4233 may extend from the flow portion 4231 in a radial direction of the flow portion 4231 . The inlet portion 4233 may extend downward from the flow portion 4231 . The inlet part 4233 may extend from the flow part 4231 toward the fan duct part 850 and may communicate with the flow part 4231 .

The inlet part 4233 may have a fan duct part 850 disposed therein, and may receive hot air from the fan duct part 850 and guide it to the flow part 4231 . In addition, the inlet 4233 may provide only an installation space for the fan duct 850 so that the flow portion 4231 can directly receive hot air from the fan duct 850 without passing through the inlet 4233. have. 6 illustrates that the fan duct part 850 is disposed at the inlet part 4233 and the hot air is directly supplied to the flow part 4231, but this is not construed as being limited thereto.

For example, as described above, the hot air supply unit 900 may be located below the drum 200 , the flow unit 4231 may face the drum rear surface 220 , and the fan duct unit 850 may provide hot air The hot air may be guided from the supply unit 900 to the flow unit 4231 .

Accordingly, at least a part of the fan duct part 850 may be located below the flow part 4231 , and the inlet part 4233 is a flow part 4231 to provide an installation space for the fan duct part 850 . can be extended downward. For example, the inlet portion 4233 may extend downward from one side in the lateral direction of the flow portion 4231 .

Specifically, the inlet portion 4233 may be recessed backward from one surface of the rear plate 420 facing the fan duct portion 850 . That is, the inlet part 4233 may be recessed away from the fan duct part 850 on one surface of the rear plate 420 facing the fan duct part 850 . One surface of the rear plate 420 may be the front surface of the rear plate 420 .

The inlet 4233 may have a second flow space V2 formed therein, and a front surface thereof may be opened. That is, the second flow space V2 may be the same as the installation space of the fan duct unit 850 described above, and communicate with the first flow space V1 to form the aforementioned flow space V together. .

At least a part of the fan duct part 850 may be inserted into the second flow space V2 of the inlet part 4233 and coupled thereto. That is, the fan duct part 850 may be supported by an inflow circumferential portion 4233a to be described later, and may be coupled to an inflow recessed surface 4234 to be described later to receive support and coupling force. The inlet peripheral portion (4233a) and the inlet recessed surface (4234) will be described in detail later.

Meanwhile, in the inlet part 4233 according to an embodiment of the present invention, the hot air supply part 900 may be disposed together with the fan duct part 850 .

That is, the inlet part 4233 may extend from the flow part 4231 to insert the fan duct part 850 , and may have a shape that is further extended from the fan duct part 850 toward the hot air supply part 900 .

Accordingly, the inlet 4233 may provide not only an installation space for the fan duct unit 850 disposed between the hot air supply unit 900 and the flow unit 4231 , but also an installation space for the hot air supply unit 900 .

As described above, the hot air supply unit 900 may be provided on the lower plate 147 of the cabinet 100 , and may be disposed close to the first side plate 1411 . The inlet portion 4233 may extend downward from the flow portion 4231 , and may extend toward the lower plate 147 to be closer to the first side plate 1411 . That is, the inlet portion 4233 may extend from the flow portion 4231 toward the first side plate 1411 .

Specifically, in the inlet portion 4233, one surface of the rear plate 420 facing the fan duct portion 850 and the hot air supply portion 900 may be recessed rearward. That is, the inlet part 4233 may be recessed away from the fan duct part 850 and the hot air supply part 900 on one side of the rear plate 420 facing the fan duct part 850 and the hot air supply part 900. . One surface of the rear plate 420 may be the front surface of the rear plate 420 .

In other words, the second flow space V2 of the inlet 4233 may be additionally extended from the fan duct 850 to form a space in which the hot air supply unit 900 is disposed.

As the inlet 4233 is provided on the rear plate 420, the rear end of the hot air supply 900 may be disposed, and the rear end of the hot air supply 900 may be the above-described blower 960. have. As the blower 960 is disposed in the second flow space V2, the limited internal space of the cabinet 100 can be efficiently utilized.

For example, the length of the hot air passage 920 located in front of the blower 960 may be longer than before utilizing the second flow space V2 of the inlet 4233, and the hot air passage 920 ) The size of the evaporator 951 and the condenser 952 disposed therein may also be provided larger.

Specifically, the inlet 4234 may be disposed by inserting the blowing fan driving unit 965 and the blowing fan housing 963 of the blowing unit 960 into the second flow space V2. For example, in FIG. 2 , a part of the blower fan driving unit 965 is illustrated as being inserted into the second flow space V2.

However, the present invention is not limited thereto, and the whole of the blowing fan driving unit 965 may be inserted into the second flow space V2 and disposed, and the blowing fan driving unit 965 and the blowing fan housing 963 are entirely disposed in the second flow space. It may be disposed to be inserted into (V2). In addition, the second flow space V2 may be disposed by further inserting the rear end of the hot air flow passage unit 920 .

On the other hand, more specifically, the inlet portion 4233 may include an inlet circumferential portion 4233a and an inlet recessed surface 4234 that provide support and coupling force to the fan duct portion 850 and the hot air supply portion 900 .

The second flow space V2 according to an embodiment of the present invention may have a shape extending from the first flow space V1, and the inflow circumferential portion 4233a extends from the flow outer peripheral portion 4231a to the second flow space. The perimeter of (V2) can be formed. That is, the flow outer peripheral portion (4231a) and the inlet peripheral portion (4233a) may form the perimeter of the duct portion (423) together.

The inlet circumferential portion 4233a may extend from one side of the flow outer peripheral portion 4231a toward the hot air supply unit 900, and may be connected to the other side of the flow outer peripheral portion 4231a via the lower side of the rear plate 420 .

The first flow space V1 and the second flow space V2 may communicate with each other as described above by opening between one side and the other side of the flow outer peripheral portion 4231a, and a single flow space V may be formed. .

That is, the outer flow portion (4231a) may be provided in the form of a partially open circle, that is, in the shape of an arc instead of forming a complete circle, and the inlet circumferential portion (4233a) is from one side to the other side of the outer flow portion (4231a). It may form a continuous circumference with the flow outer peripheral portion (4231a).

In addition, the inlet recessed surface 4234 may connect between the inlet circumferential portions 4233a. For example, the flow outer peripheral portion (4231a) may extend in the shape of an arc, the inlet peripheral portion (4233a) may extend to connect both sides of the flow outer peripheral portion (4231a), the inlet recessed surface 4232 is the flow portion (4231) It can be connected between the inlet peripheral portion (4233a) extending from the flow recessed surface (4232) of.

That is, the inflow circumferential portion 4233a surrounds a portion of the periphery of the inflow recessed surface 4232 , and the inflow recessed surface 4234 may be connected to the flow recessed surface 4232 in a region excluding the inflow circumferential portion 4233a.

The inflow recessed surface 4234 may shield between the inflow peripheral portions 4233a to form a second flow space V2. That is, the inflow recessed surface 4234 may mean a recessed surface of the inflow part 4233 . The flow outer peripheral portion (4231a) is opened between one side and the other side connected to the inlet peripheral portion (4233a) so that the inflow depression surface 4234 and the flow depression surface 4232 can be connected, the inflow depression surface 4234 and the flow depression surface (4232) may form a continuous surface.

For example, as described above, the inlet portion 4233 may extend downwardly from the flow portion 4231 , and may extend downwardly from the lower portion of the flow portion 4231 . In addition, the inlet portion 4233 may extend from a portion biased toward one side of the cabinet 100 in the flow portion 4231 . That is, the inlet portion 4233 may extend downward from one side of the flow portion 4231 in the lateral direction.

The inlet portion 4233 may extend from the flow portion 4231 toward the lower plate 147 , and further may extend closer to the first side plate 1411 . One side of the flow outer peripheral portion 4231a is located farther than the first side plate 1411 than the other side, and may be located closer to the lower plate 147 of the cabinet 100 .

The flow outer periphery 4231a may form a 'q-shape' perimeter together with the inflow perimeter portion 4233a, and the inflow recessed surface 4234 has a 'q-shape' cross-section together with the flow recessed surface 4232. can be formed

As described above, the fan duct unit 850 and the blower fan driving unit 965 may be coupled to the inlet recessed surface 4234 . As the coupling method, various methods such as screw coupling, riveting coupling, and fitting coupling may be used. In addition, the fan duct part 850 and the blower fan driving part 965 may be supported in contact with the inlet peripheral part 4233a.

That is, the inlet portion 4233 may provide a strong coupling force and support force to the fan duct portion 850 and the blower fan driving portion 965 through the inlet circumferential portion 4233a and the inlet recessed surface 4234 .

In addition, the inlet circumferential portion 4233a may be provided so that the portion connected to the flow outer peripheral portion 4231a, the portion connected to the front surface of the rear plate 420, and the portion connected to the inlet concave surface 4234 are rounded. Injury can be prevented as much as possible even if touched.

Meanwhile, referring back to FIG. 5B , the flow part 4231 and the inlet part 4233 may be integrally provided. The inflow depression surface 4234 may form one surface of the duct portion 423 continuous with the flow depression surface 4232, and the flow outer peripheral portion 4231a is a continuous duct portion of the same depth as the inflow peripheral portion 4233a ( 423) can be formed. As the flow part 4231 and the inlet part 4233 are integrally manufactured, manufacturing convenience may be increased.

In addition, the rear plate 420 may be provided integrally with the duct portion 423 . That is, the duct portion 423 may be formed by pressing from the front to the rear of the rear plate 420 . Accordingly, when the duct part 423 is separately provided and attached to the rear plate 420 , leakage of hot air through a gap between the duct part 423 and the rear plate 420 can be prevented. In addition, manufacturing convenience of the rear plate 420 may be increased.

That is, as the inlet part 4233 and the flow part 4231 are integrally manufactured and the rear plate 420 and the duct part 423 are integrally manufactured, the rear plate 420 can be prevented from leaking as much as possible.

Meanwhile, referring back to FIGS. 2 and 3 , the drum rear surface 220 according to an embodiment of the present invention may include a drum shield 221 through which hot air flows into the drum 200 .

As described above, the drum rear surface 220 may face the flow portion 4231 , and may receive hot air from the flow portion 4231 to guide the hot air into the drum 200 .

The drum shield 221 may be disposed in front of the open front surface of the flow part 4231 . The drum shield 221 may shield the open front surface of the flow part 4231 . That is, the drum shield 221 may be disposed in front of the first flow space V1, and may shield the first flow space V1.

The drum shielding part 221 may be provided to face the flow depression surface 4232 , and hot air may flow therebetween and the flow depression surface 4232 . The drum shield 221 is provided in a shape corresponding to the flow portion 4231 to more easily receive hot air from the flow portion 4231 . That is, the drum shield 221 may be provided in a donut shape.

In addition, the drum shield 221 may include a drum inlet 2213 provided so that hot air can be introduced into the drum 200 .

The drum inlet 2213 may be provided with a plurality of holes provided through the drum shield 221 or may be provided as a mesh in the form of a mesh. In addition, the drum inlet 2213 may be provided in plurality to be spaced apart from each other in the circumferential direction of the drum shield 221 .

In addition, the drum shield 221 may further include a reinforcing rib 2211 and a circumferential rib 2215 to secure structural rigidity.

The reinforcing rib 2211 may be provided between the drum inlet 2213 along the circumferential direction of the drum shield 221 , and the circumferential rib 2215 is formed between the inner side of the reinforcing rib 2211 and the drum inlet 2213 . It may include a circumferential rib 2215 provided on the inside of the. The circumferential rib 2215 may be provided in an annular shape, and may be provided integrally with the reinforcing rib 2211 .

In addition, the reinforcing rib 2211 and the circumferential rib 2215 are disposed relatively rearward as the drum inlet 2213 protrudes forward from the drum shield 221 or protrudes backward from the drum shield 221 . can be provided.

In addition, a part of the drum rear surface 220 may be provided to correspond to a mounting and receiving portion 4251 to be described later. The drum rear surface 220 may include a drum accommodating part 223 provided to correspond to the mounting accommodating part 4251 .

Specifically, the drum rear surface 220 may include a drum accommodating part 223 that is depressed from the inside of the drum shielding part 221 to the front, and the drum accommodating part 223 has a mounting accommodating part 4251 therein. can be accepted.

The drum accommodating part 223 is easy to combine with the drum rotating shaft 650 of the driving part M through which the mounting accommodating part 4251 is inserted and passed through the mounting hole 4255, and the drum shielding part 221 is relatively flexible. It may be easier to shield the open front surface of the flow part 4231 by being disposed close to the eastern part 4231 . The content of the mounting receiving portion 4251 will be described later in detail.

Meanwhile, FIG. 7 is an exploded perspective view of the rear plate, the fan duct part, and the driving part according to an embodiment of the present invention. FIG. 8 is an exploded perspective view of the rear plate, the fan duct part, and the driving part shown in FIG. 7 as viewed from another side.

4 and 7 to 8 , the laundry treatment apparatus according to an embodiment of the present invention may include a sealing part 450 for preventing the leakage of hot air to the outside of the drum 200 .

In the sealing part 450, as the front surface of the flow part 4231 is opened, the hot air flowing through the first flow space V1 flows between the outer peripheral part 4231a and the drum rear surface 220 through the drum ( 200) to prevent leakage to the outside. In addition, the sealing part 450 can prevent the hot air flowing through the first flow space V1 from leaking to the outside of the drum 200 through the space between the flow inner peripheral part 4231b and the drum rear surface 220 . .

The sealing part 450 may include a first sealing part 451 provided along the outer periphery of the flow part 4231 .

The first sealing part 451 may be provided between the front surface of the rear plate 420 and the drum shielding part 221 of the drum rear surface 220 . The first sealing part 451 may be provided between the drum shielding part 221 and the flow part 4231 .

The first sealing part 451 may be provided in a shape corresponding to the flow outer peripheral portion 4231a, and may be provided outside the flow outer peripheral portion 4231a. When the flow outer peripheral portion (4231a) is provided in a circular shape, the first sealing part 451 may be provided in an annular shape in which both inner and outer sides are provided in a circular shape.

Referring to FIG. 6 , if the diameter of the flow outer portion 4231a is D1, the outer diameter of the first sealing portion 451 may be greater than D1, and the inner diameter may be equal to or greater than D1.

The first sealing part 451 may be provided outside the drum shielding part 221 . The first sealing portion 451 may have an inner circumferential surface positioned outside the drum inlet portion 2213 . The thickness of the first sealing part 451 may be greater than the length protruding backward of the drum inlet part 2213 .

As described above, since hot air flows into the drum 200 through a plurality of through-holes provided in the drum inlet 2213 , the first sealing part 451 is introduced into the drum from the outside of the drum inlet 2213 . It is provided to surround the part 2213 to effectively prevent leakage to the outside of the drum 200 .

In addition, the first sealing part 451 is provided with a thickness greater than the protruding depth of the rear side of the drum inlet 2213 , so as to be introduced into the drum 200 through the drum inlet 2213 to the outside of the drum 200 . It is possible to prevent the hot air from leaking as much as possible. The first sealing part 451 is provided to be in contact with both the drum shielding part 221 and the front surface of the rear plate 420 to more effectively prevent leakage.

The sealing part 450 may include a second sealing part 452 provided along the inner circumference of the flow part 4231 .

The second sealing part 452 may be provided between the front surface of the rear plate 420 and the drum shielding part 221 of the drum rear surface 220 . The second sealing part 452 may be provided between the drum shielding part 221 and the flow part 4231 .

The second sealing portion 452 may be provided in a shape corresponding to the flow inner peripheral portion (4231b). When the flow inner peripheral portion 4231b is provided in a circular shape, the second sealing portion 452 may be provided in an annular shape having both the inner and outer sides thereof in a circular shape. The second sealing portion 452 may be provided inside the flow inner peripheral portion (4231b). If the diameter of the inner flow portion 4231b is D2, the outer diameter of the second sealing portion 452 may be equal to or smaller than D2.

The second sealing part 452 may be provided inside the drum shielding part 221 . That is, the second sealing part 452 may be provided on the circumferential rib 2215 . The second sealing part 452 may be provided to surround the driving part M connected to the drum rear surface 220 .

The second sealing part 452 may have an inner circumferential surface positioned inside the drum inlet part 2213 . The thickness of the second sealing part 452 may be greater than the length protruding to the rear of the drum inlet 2213 .

As described above, since hot air flows into the drum 200 through a plurality of through-holes provided in the drum inlet 2213 , the second sealing part 452 is installed inside the drum inlet 2213 by the driving unit ( It is provided to surround M) and it is possible to effectively prevent the hot air from leaking to the driving unit (M).

In addition, the first sealing portion 451 is provided with a thickness greater than the protruding depth of the rear side of the drum inlet 2213 , so that the hot air is blown into the driving unit M before being introduced into the drum 200 through the drum inlet 2213 . This leakage can be prevented as much as possible.

If heat is generated by rotation of the driving unit M and the hot air of the flow unit 4231 is introduced, it may be further heated and a malfunction may occur. The driving unit M may be provided to be exposed to the outside, and if hot air is introduced to the driving unit M side, it may leak to the outside of the drum 200 . The second sealing part 452 is provided to be in contact with both the front surface of the drum shielding part 221 and the rear plate 420 to more effectively prevent leakage.

Since the drum 200 rotates during the operation of the laundry treatment apparatus, continuous friction is applied to the sealing part 450 by the drum rear surface 220 . Therefore, the sealing part 450 may be provided with an elastic material capable of sealing between the drum rear surface 220 and the flow part 4231 without deterioration in performance even with frictional force and frictional heat generated according to rotation.

Meanwhile, FIG. 9 is a view showing a rear cover according to an embodiment of the present invention. 10 is a view showing a rear plate and a rear cover.

Specifically, FIG. 10 (a) is a rear view of the rear plate to which the driving unit is coupled, and FIG. 10 (b) is a rear view of the rear plate to which the rear cover is coupled.

Referring to FIGS. 9 and 10( b ), the laundry treatment apparatus according to an embodiment of the present invention may include a rear cover 430 provided to cover the rear plate 420 .

The rear cover 430 may be provided to cover the rear of the rear plate 420 , and may prevent a configuration disposed on the rear of the rear plate 420 from being exposed to the outside. Accordingly, the rear cover 430 may protect the configuration disposed at the rear of the rear plate 420 from external impact, and may improve aesthetics.

As described above, the duct part 423 may be provided on the rear plate 420 , and the driving part M may be coupled to the rear surface of the rear plate 420 . The rear cover 430 is coupled to the rear surface of the rear plate 420 and may be provided to cover the duct part 423 and the driving part M, and the duct part 423 and the driving part M are exposed to the outside. can be prevented

Accordingly, the rear cover 430 can prevent a safety accident that may occur when the user comes into contact with the duct part 423 or the driving part M, and the duct part 423 and the driving part M from external impact. damage can be prevented.

In addition, the rear cover 430 can prevent the hot air flowing inside the duct 423 from exchanging heat with the outside by shielding the duct part 423 that guides the hot air to the drum rear surface 220 from the outside. It is possible to prevent a decrease in efficiency.

At least a portion of the rear cover 430 may be provided in a shape corresponding to the duct portion 423 . As described above, the driving part M is located inside the duct part 423 and may be coupled to the rear surface of the rear plate 420 , so that the rear cover 430 corresponds to the duct part 423 at least in part. If provided in a shape to cover the duct part 423, the driving part M may also be covered.

The rear cover 430 may expose a portion of the rear surface of the rear plate 420 excluding the duct part 423 and the driving part M to the outside. That is, the rear cover 430 may be provided to cover only the components requiring insulation or protection rather than covering the entire rear surface of the rear plate 420 , thereby minimizing the volume and reducing the manufacturing cost.

In addition, components may be freely disposed on a portion exposed to the outside of the rear surface of the rear plate 420 . For example, in the rear plate 420 , a water storage tank may be inserted through the rear tank support hole 421 described above. The water storage tank may further extend rearward through the rear tank support hole 421 , and interference with the rear cover 430 may be prevented. Details of the rear cover 430 will be described later.

On the other hand, Figure 11 is a view showing the rear cover coupling portion of the rear plate according to an embodiment of the present invention.

Specifically, Figure 11 (a) is a front view of the rear cover coupling portion, Figure 11 (b) is a rear view of the rear cover coupling portion. Figure 11 (c) is a view showing the coupling support portion of the rear plate.

Referring to FIG. 11 , the rear plate 420 according to an embodiment of the present invention may include a rear cover coupling part 427 to which the rear cover 430 is coupled. The rear cover coupling part 427 is inserted into the rear cover 430 so that the rear cover 430 is coupled, thereby improving the supporting force of the rear cover 430 .

The rear cover coupling part 427 may protrude rearward from one surface of the rear plate 420 , and the rear cover coupling part 427 surrounds at least a portion of the duct part 423 from the outside of the duct part 423 . can be extended 11 shows a rear cover coupling part surrounding the entire duct part.

The duct part 423 may protrude rearward from the rear cover coupling part 427 , and the rear cover coupling part 427 may be connected to the outer circumference of the duct part 423 . That is, the rear plate 420 may be provided in a form in which the duct portion 423 protrudes further rearward than the rear cover coupling portion 427 .

In one embodiment of the present invention, the rear cover coupling portion 427 is formed to be stepped with the duct portion 423, thereby increasing the structural rigidity of the entire rear plate 420, and the rear cover 430 is the rear plate 420. ) can serve as a guide when coupled to the rear of the

Specifically, the rear cover coupling portion 427 extends from the rear coupling circumferential portion 427a and the rear coupling circumferential portion 427a forming the periphery of the rear cover coupling portion 427 and is connected to the duct portion 423 . It may include a coupling depression surface (427d).

The rear coupling depression surface 427d may be located in front of the flow depression surface 4232 and the inflow depression surface 4234 of the duct portion 423 . The above-described first sealing part 451 may be disposed on the rear coupling recessed surface 427d, and a fan duct receiving part 4271 to be described later is provided in the boundary region between the flow outer peripheral part 4231a and the inflow peripheral part 4233a. can be

The rear coupling peripheral portion 427a may be provided in a shape corresponding to at least a portion of the flow outer peripheral portion 4231a and the inflow peripheral portion 4233a.

That is, the rear coupling peripheral portion 427a is provided in a shape corresponding to the entire flow outer peripheral portion 4231a and the inflow peripheral portion 4233a, or a portion thereof is provided in a shape corresponding to the flow outer peripheral portion 4231a and the inflow peripheral portion 4233a. can be provided.

For example, the rear coupling circumferential portion 427a may be provided in a shape corresponding to the overall flow spaced apart from the flow outer circumferential portion 4231a and the inlet circumferential portion 4233a by a predetermined distance, and the flow outer circumferential portion 4231a or the inflow circumferential portion in a specific portion. It may extend away from 4233a.

As the rear engaging peripheral portion 427a extends away from the flow outer peripheral portion 4231a or the inflow peripheral portion 4233a in a specific portion, the flowing outer peripheral portion 4231a and the inflow peripheral portion 4233a and the rear engaging peripheral portion 427a) The rear coupling recessed surface 427d connecting them may be extended.

The rear coupling recessed surface 427d can be installed in the extended area of the drain pipe 891 and the return pipe 893 to be described later, so that the space utilization efficiency can be increased.

Meanwhile, referring back to FIGS. 9 and 10 , the rear cover 430 according to an embodiment of the present invention may include a duct cover 431 provided to cover the duct part 423 . The duct cover 431 has a space therein, and the duct part 423 may be inserted therein.

Specifically, the duct cover 431 may include a duct cover circumferential portion 431a provided to surround the perimeter of the duct portion 423 and a cover shielding portion 431b extending from the duct cover circumferential portion 431a. , the cover shielding portion (431b) may shield the inside of the duct cover (431).

The inner circumferential surface of the duct cover 431a may face the flow outer circumferential portion 4231a and the inflow circumferential portion 4233a of the duct portion 423 , and the cover shield portion 431b is the flow recessed surface of the duct portion 423 . (4232) and the inlet recessed surface (4233) may face.

Although not shown in the drawing, the rear cover 430 is made of only the duct cover 431 so that the end of the duct cover circumferential part 431a is in contact with the rear coupling recessed surface 427d to cover only the duct part 423 and the driving part M. may be provided.

In addition, the rear cover 430 is made of only the duct cover 431 so that the duct cover circumferential portion 431a surrounds the rear coupling circumferential portion 427a, and the rear plate 420 is located outside the rear coupling circumferential portion 427a. ) may be provided to cover up to the rear cover coupling part 427 together with the duct part 423 and the driving part M in contact with the rear surface.

The shape of the rear cover 430 may be variously determined in consideration of manufacturing conditions, an arrangement relationship with a configuration disposed on the rear surface of the rear plate 420 , and the like.

In addition, the rear cover 430 according to an embodiment of the present invention may include a coupling part cover 433 provided to cover the rear cover coupling part 427 .

The coupling part cover 433 is connected to the duct cover 431 and may shield the inside of the rear cover 430 together with the duct cover 431 . As the duct part 423 protrudes more backward from the rear surface of the rear plate 420 than the rear cover coupling part 427, the duct cover 431 may be provided to protrude further rearward than the coupling part cover 433. have.

The duct cover 431 and the coupling part cover 433 have different protrusions and may be formed to be stepped, and the rear cover 430 has structural rigidity by the duct cover 431 and the coupling part cover 433. can be increased

Specifically, the coupling part cover 433 extends from the coupling cover circumferential part 433a surrounding the periphery of the rear cover coupling part 427 and the coupling cover circumferential part 433a and is connected to the duct cover circumferential part 431a. An extension portion 433b may be included.

The coupling cover circumferential portion 433a may have an inner circumferential surface facing the rear coupling circumferential portion 427a of the rear cover coupling portion 427, and the cover extension 433b is the rear coupling recessed surface of the rear cover coupling portion 427. (427d) can be encountered.

The coupling cover peripheral portion 433a may be connected to the duct cover peripheral portion 431a through the cover extension portion 433b or directly connected to the duct cover peripheral portion 431a. That is, the coupling cover peripheral portion 433a may be provided integrally with the duct cover peripheral portion 431a to surround the duct portion 423 and the rear cover coupling portion 427 together.

From another point of view, at least a portion of the duct cover 431 may be provided to correspond to the duct portion 423 . That is, the entire duct cover 431 may be provided to correspond to the duct portion 423 to cover the duct portion 423 , or a part may be provided to correspond to the duct portion 423 to cover the duct portion 423 .

Specifically, the duct cover circumferential portion 431a may be provided in a shape corresponding to the overall flow while maintaining a predetermined interval with the flow outer circumferential portion 4231a and the inflow circumferential portion 4233a, and the flow outer circumferential portion 4231a or inflow in a specific portion. It may extend away from the peripheral portion 4233a.

As the duct cover peripheral portion 431a extends away from the flow outer peripheral portion 4231a or the inflow peripheral portion 4233a in a specific portion, the cover shielding portion 431b connecting the duct cover peripheral portion 431a may be expanded. have.

The rear cover 430 may have a space formed in the interior of the duct cover 431 as much as the length extended to the rear of the duct cover circumferential portion 431a, and the coupling cover circumferential portion 433a inside the coupling portion cover 433 . ), a space may be formed as much as the length extended to the rear.

That is, the rear cover 430 may have a space formed on the front side of the duct cover 431 by adding the extended length of the duct cover circumferential portion 431a to the extended length of the coupling cover circumferential portion 433a. .

That is, the duct cover 431 protrudes further rearward than the coupling part cover 433 so that a larger space can be formed therein, and the separate configuration disposed on the rear surface of the rear cover coupling part 427 can be easily configured. can be covered

For example, the cover shielding part 431b further extends in the radial direction of the flow part 4231 from one surface facing the flow recessed surface 4232, and an external discharge pipe 895 to be described later is disposed between the rear coupling recessed surface 427d and the It can be easily arranged, and it can provide a space so that the cover opening and closing part 439 selectively exposing the external discharge pipe 895 to the outside can be easily installed. The relationship between the rear cover 430 and the external discharge pipe 895 and the cover opening and closing part 439 will be described later in detail.

Meanwhile, referring to FIGS. 4 and 11 ( a ), at least a portion of the blower 960 may be disposed in the rear cover coupling part 427 according to an embodiment of the present invention.

That is, the rear cover coupling part 427 may accommodate at least a portion of the blower 960 together with the inlet 4233 , and may support the blower 960 . In the blower 960 , the blower fan housing 963 may be positioned in front of the blower fan driving part 965 , and the width of the blower fan housing 963 is larger than the width of the inlet 4233 , so that the inlet Acceptance in (4233) can be difficult.

As the rear cover coupling portion 427 may be provided by being recessed from the front to the rear of the rear plate 420 from the outside of the inlet 4233, it may be provided to be larger than the width of the inlet 4233, At least a portion of the blower fan housing 963 may be accommodated.

As the rear coupling peripheral portion 427a of the rear cover coupling portion 427 is in contact with the blower fan housing 963 to support the blower fan housing 963, the blower unit 960 as a whole is a blower fan driving unit ( 965) can be strongly supported.

As a separate fastening member penetrates through the rear coupling recessed surface 427d of the rear cover coupling part 427 and can be coupled to the blow fan housing 963, the entire location of the blow fan 961 is firmly fixed. can

In addition, the rear cover coupling part 427 according to an embodiment of the present invention may be provided such that a portion facing the blower 960 is opened toward the lower plate 147 . That is, the lower end of the rear cover coupling portion 427 is opened so that the blower 960 and the lower plate 147 can be more easily disposed.

The rear cover coupling part 427 may be provided to protrude rearward from one surface of the rear plate 420 . That is, it may be formed to be stepped with one surface of the rear plate 420 located outside the rear cover coupling part 427 .

The rear coupling circumferential portion 427a may be formed to be inclined with one surface of the rear plate 420 connected to the rear coupling circumferential portion 427a, and the blowing fan housing 963 and the lower plate 147 of the blower 960 are provided. If is located inside the rear cover coupling portion 427, it is contacted by the rear coupling circumferential portion 427a so that it is difficult to arrange or needs to be formed to correspond to the inclination for placement.

Accordingly, the rear engaging peripheral portion 427a has a portion facing the blower 960 and the lower plate 147 is opened toward the lower plate 147 so that the rear engaging recessed surface 427d is the lower end of the rear plate 420 . to form a continuous surface.

That is, the rear coupling perimeter portion 427a may be provided in an open shape rather than a continuous closed curve, and the rear coupling recessed surface 427d of the rear cover coupling part 427 has a lower side of the rear coupling circumferential portion 427a. ) may not be enclosed.

Specifically, the rear cover coupling part 427 is connected to the flow cover coupling part 4278 and the flow cover coupling part 4278 corresponding to the flow part 4231, and the inlet cover coupling part corresponding to the inlet part 4233 ( 4274) may be included.

The floating cover coupling portion 4278 forms a periphery of the floating cover coupling portion 4278, and may include a flow coupling peripheral portion 4278a corresponding to the flow outer peripheral portion 4231a, and the inflow cover coupling portion 4274 is It is connected to the flow-coupled peripheral portion (4278a) and may include an inflow-coupled peripheral portion (4274a) corresponding to the inflow peripheral portion (4233a).

In addition, one side of the inflow coupling peripheral portion 4274a may extend from the first flow coupling connection portion 4278b corresponding to the first flow connection portion 4235, and a second flow coupling corresponding to the second flow connection portion 4236. The other side may extend from the connection portion 4278c.

The inflow coupling peripheral portion 4274a may have one side connected to the first fluid coupling connection part 4278b in contact with the outside, and the other side connected to the second flow coupling coupling part 4278c may be in contact with the outside.

The inflow coupling peripheral portion 4274a may not form a continuous closed curve from the first flow coupling connection part 4278b to the second flow coupling connection part 4278c, and the inflow coupling recessed surface corresponding to the inflow recessed surface 4234 ( 4274b) may be continuous up to the lower end of the rear plate 420 and may come into contact with the outside. The above-described rear coupling recessed surface 427d may include an inflow coupling recessed surface 4274b.

According to an embodiment of the present invention, since the rear cover coupling part 427 is opened toward the lower plate 147 , even when the rear plate 420 is coupled to the lower plate 147 during the manufacturing process of the laundry treatment apparatus 10 . In the rear cover coupling portion 427, the location space of the blower fan housing 963 and the lower plate 147 can be sufficiently secured, and the coupling can be made convenient.

In addition, in one embodiment of the present invention, the upper plate 145, the side plate 141 and the upper plate 145 and the side plate 141 by using the portion in contact with the lower plate 147 as the center of rotation while bringing the rear plate 420 into contact with the lower plate 147. The rear cover coupling portion 427 can be prevented from contacting the lower plate 147 and the blower fan housing 963 by the open lower end of the rear coupling peripheral portion 427a, so that the rear plate 420 is It can be easily combined with the lower plate 147 , the upper plate 145 , and the side plate 141 to form the cabinet 100 .

Meanwhile, referring to FIGS. 9 and 10 , in the rear cover 430 according to an embodiment of the present invention, a portion facing the inflow coupling recessed surface 4274b of the rear cover coupling part 427 among the circumferences may be opened. have.

As described above, the inlet coupling peripheral portion 4274a and the inflow coupling recessed surface 4274b may extend to the lower end of the rear plate 420, and the coupling portion cover 433 surrounding the inflow coupling circumferential portion 4274a. The coupling cover circumferential portion 433a may surround some or all of the inlet coupling circumferential portion 4274a.

When the coupling cover circumferential portion 433a surrounds a portion of the inlet coupling circumferential portion 4274a, the coupling cover circumferential portion 433a may extend from the lower end of the rear plate 420 to a portion spaced apart by a predetermined distance, and the lower end portion As it is opened, a part of the inlet coupling recessed surface 4274b may be exposed to the outside. The coupling cover peripheral portion 433a has an open lower end so that contact with the inflow coupling recessed surface 4274b can be prevented, and the rear cover 430 can be easily coupled to the rear plate 420 .

When the coupling cover circumferential portion 433a surrounds the entire inflow coupling circumferential portion 4274a, the coupling cover circumferential portion 433a may extend to the lower end of the rear plate 420, and the inflow coupling recessed surface 4274b is The whole can be prevented from being exposed to the outside. Even in this case, the lower end of the coupling cover peripheral portion 433a may be opened to prevent contact with the lower plate 147 , and the rear cover 430 may be easily coupled to the rear plate 420 .

From another point of view, the coupling cover circumferential portion 433a may be opened at a position corresponding to the portion where the inflow coupling circumferential portion 4274a is opened, and the rear cover 430 is the open portion of the coupling cover circumferential portion 433a. Since contact with the inlet coupling recessed surface 4274b can be prevented through the portion, coupling with the rear plate 420 can be facilitated.

In addition, the coupling part cover 433 may include a coupling cover coupling surface 4331 facing the inlet coupling recessed surface 4274b.

The coupling cover coupling surface 4331 is a cover extension 433b connecting the duct cover circumferential part 431a and the coupling cover circumferential part 433a of the duct cover 431 or the duct cover circumferential part 431a or the coupling cover circumference It may be a separate surface extending from the portion 433a.

The coupling cover coupling surface 4331 may be provided in parallel with the inflow coupling recessed surface 4274b, and the lower end of the coupling cover circumferential portion 433a is opened to be in contact with the inflow coupling recessed surface 4274b, and inflow coupling It may be in contact with the recessed surface 4274b to provide support to the rear cover 430 .

Meanwhile, referring back to FIGS. 9 and 10 , the rear cover 430 according to an embodiment of the present invention may include a hook coupling part 434 coupled to the rear plate 420 and a cover coupling part 4341 . can

Specifically, the rear cover 430 is provided along the circumference of the rear cover 430 and may include a hook coupling part 434 hook-coupled to the rear plate 420, and the rear plate 420 is a hook coupling part. It may include a hook receiving portion 4273 formed through the rear plate 420 at a position corresponding to the 434. The hook coupling part 434 is inserted into the hook receiving part 4273 and may be provided with an end protruding so as to be caught by the hook receiving part 4273 .

The position at which the plate fastening part 429 and the hook receiving part 4273 are provided can be variously set according to the manufacturing conditions, the manufacturing method, the shape of the rear plate 420, and the shape of the rear cover 430, and the cover fastening The position at which the part 4341 and the hook coupling part 434 are provided may also be set in various ways according to the manufacturing conditions, the manufacturing method, the shape of the rear plate 420 , and the shape of the rear cover 430 .

For example, the hook coupling part 434 may be provided on one open side of the coupling part cover 433 described above, and the hook receiving part 4273 also corresponds to the hook coupling part 434 and the rear cover coupling part 427. It may be provided on an open side of the.

Specifically, the hook coupling part 434 may include a first hook coupling part 434a provided on the coupling cover coupling surface 4331, and the hook receiving part 4273 faces the coupling cover coupling surface 4331. It may include a first hook receiving portion (4273a) provided on the rear coupling recessed surface (427d).

The first hook coupling part 434a may be inserted into and coupled to the first hook receiving part 4273a, and the coupling cover coupling surface 4331 has a cross-sectional area of the coupling part cover 433 secured to a certain level or more so as to be coupled with the first hook. A portion 434a may be advantageously provided.

In addition, the hook coupling portion 434 may include a second hook coupling portion 434b provided on the coupling cover circumferential portion 433a, and the hook receiving portion 4723 is located outside the rear coupling recessed surface 427d. It may include a second hook receiving portion (4273b) provided through one surface of the rear plate (420). The second hook coupling portion 434b may be inserted into and coupled to the second hook receiving portion 4273b.

In addition, the rear cover 430 may include a cover fastening portion 4341 provided along the circumference of the rear cover 430 . The cover fastening portion 4341 may extend to face the rear surface of the rear plate 420 on the circumference of the coupling cover circumference portion 433a, and is provided in plurality to be spaced apart along the circumference of the coupling cover circumference portion 433a. A separate fastening member may pass through and be coupled to the rear plate 420 .

The rear plate 420 may include a plate fastening part 429 formed through one surface of the rear plate 420 at a position corresponding to the cover fastening part 4341, and the plate fastening part 429 is the cover fastening part 429. The separate fastening member may be inserted together with the part 4341 to fix the rear cover 430 and the rear plate 420 . That is, the plate fastening part 429 may be bolted to the cover fastening part 4341 .

In summary, the rear cover 430 may be fixed to the rear plate 420 through welding and adhesive bonding, etc., but depending on the manufacturing conditions, hook coupling through the hook coupling unit 434 or through the cover coupling unit 4341. It may be fixed to the rear plate 420 using a relatively simple coupling method such as bolting coupling.

The rear cover 430 may be fixed to the rear plate 420 using either hook coupling or bolting coupling, and may be fixed to the rear plate 420 using both hook coupling and bolting coupling.

In addition, referring to FIG. 11( c ), the rear plate 420 according to an embodiment of the present invention may further include a coupling support part 424 for supporting coupling with the rear cover 430 .

The coupling support 424 may receive the end of the rear cover 430 to support the entire rear cover 430 . That is, the coupling support portion 424 may receive the coupling cover peripheral portion 433a of the rear cover 430 to support the entire rear cover 430 .

The coupling support part 424 is provided by being recessed in the front from the rear surface of the rear plate 420 or the rear coupling peripheral portion 427a protruding backward from the rear surface of the rear plate 420 and the side plate 141 of the rear plate 420 . ) and may be provided in a relatively recessed space between the plate coupling part to be coupled.

Specifically, the rear plate 420 may include a plate coupling portion protruding rearwardly from the rear plate 420 so that the side plates 141 can be accommodated and coupled to both ends, and the coupling support portion 424 is a plate coupling. It is formed between the part and the rear coupling circumferential portion 427a protruding backward from the rear plate 420 and the end of the coupling cover circumferential portion 433a of the rear cover 430 can be inserted.

That is, the coupling support portion 424 may be provided between the plate coupling portion and the rear coupling peripheral portion 427a facing the plate coupling portion, and may extend in the longitudinal direction of the rear plate 420 . The longitudinal direction of the rear plate 420 may be a direction from the lower plate 147 toward the upper plate 145 .

In addition, the coupling support portion 424 may be provided in plurality to be formed in a vicinity adjacent to the first side plate 1411 and adjacent to the second side plate 1413 .

The coupling support portion 424 accommodates the coupling cover circumferential portion 433a so that the coupling cover circumferential portion 433a is stably fixed by the rear coupling circumferential portion 427a and the plate coupling portion.

Meanwhile, FIG. 12 is a cross-sectional view of the rear cover coupled to the rear plate according to an embodiment of the present invention.

Referring to FIG. 12 , the rear cover 430 according to an embodiment of the present invention may include a driving part rib 435 .

The driving rib 435 may be provided to protrude from one surface of the rear cover 430 toward the rear plate 420 . Specifically, the driving part rib 435 may protrude from the front surface of the rear cover 430 to correspond to the outer periphery of the driving part M and be disposed outside the driving part M. The driving part rib 435 may be a relatively forward most protruding portion of the front surface of the rear cover 430 , and the front surface of the rear cover 430 may be the same as the cover shielding part 431b.

That is, the driving rib 435 can cause a height difference to occur in the front and rear when one surface of the rear cover 430 is viewed from the side, and the structural rigidity of the rear cover 430 can be improved.

Also, referring to FIG. 9(b) , the driving part rib 435 may be provided to prevent contact between the duct part 423 and the driving part M.

As the driving unit M provides power to rotate the drum 200, vibration may be generated even if it is coupled to the rear plate 420, and the duct unit 423 is provided integrally with the rear plate 420 and the driving unit ( It can be vibrated together by the vibration of M) and the vibration of the drum 200 .

The driving part rib 435 may be provided between the duct part 423 and the driving part M, and is provided to be spaced apart from the duct part 423 and the driving part M to contact the duct part 423 and the driving part M. This can be prevented.

Specifically, the driving unit M may be provided to be surrounded by the flow inner peripheral portion 4231b of the duct portion 423, and the driving unit rib 435 may be provided between the flow inner peripheral portion 4231b and the driving unit M. can The driving part rib 435 may have an outer peripheral surface spaced apart from the flow inner peripheral part 4231b, and an inner peripheral surface spaced apart from the driving part M.

That is, unnecessary contact of the driving part rib 435 with the duct part 423 and the driving part M can be prevented as much as possible.

For example, the flow inner peripheral portion 4231b and the outer peripheral surface of the driving part M may be provided in an annular shape, and the driving part rib 435 may be provided in an annular shape and provided between the flow inner peripheral part 4231b and the driving part M. .

On the other hand, referring back to FIG. 12 , the rear cover 430 according to an embodiment of the present invention may include a cover receiving part 436 that is recessed away from the driving part M from one surface of the rear cover 430 . have. The cover receiving part 436 may prevent the driving part M from contacting the rear cover 430 . The above-described cover extension part 433b may include a cover receiving part 436 and a driving part rib 435 .

The cover receiving portion 436 may be recessed from one surface of the rear cover 430 facing the driving unit M, and one surface of the rear cover 430 facing the driving unit M may be the front surface of the rear cover 430 . can

In addition, the cover accommodating part 436 may be provided inside the driving part rib 435 and may be connected to the inner peripheral surface of the driving part rib 435 . The cover accommodating part 436 may be recessed rearward than one surface of the rear cover 430 positioned on the outside of the driving part rib 435 .

In summary, the driving unit M may be a vibrating body disposed on the rear surface of the rear plate 420, and the cover receiving unit 436 is recessed away from the driving unit M to prevent contact with the driving unit M as much as possible. can

Meanwhile, referring to FIGS. 10A and 11 , the rear plate 420 according to an embodiment of the present invention may include a mounting part 425 to which the driving part M is coupled and seated.

The mounting part 425 may be provided inside the flow part 4231 and may be provided to be surrounded by the flow part 4231 .

Specifically, the mounting part 425 surrounds the mounting accommodating part 4251 and the mounting accommodating part 4251 to which the driving part M is coupled, and may include a mounting peripheral part 4253 connected to the flow inner peripheral part 4231b. have.

The mounting receiving portion 4251 may be provided in the center of the mounting portion 425 , and may protrude forward than the mounting circumferential portion 4253 , so that the driving unit M may be accommodated and coupled thereto.

Specifically, the mounting receiving portion 4251 may include a mounting surface 4251a to which the driving unit M is coupled and a mounting hole 4255 penetrating the mounting surface 4251a, and the mounting hole 4255 is the driving unit ( M) may pass through and be connected to the drum rear surface 220 . The mounting surface 4251a and the mounting hole 4255 allow the driving unit M to be easily connected to the drum rear surface 220 and may serve to support the driving unit M.

For example, the mounting hole 4255 may be provided in a circular shape in the center of the mounting surface 4251a , and the mounting surface 4251a may be provided in an annular shape by the mounting hole 4255 .

The mounting perimeter 4253 connects the mounting accommodating part 4251 and the flow inner periphery 4231b, and provides a separation distance between the driving part M coupled to the mounting accommodating part 4251 and the flow inner periphery 4231b. can do.

On the other hand, the mounting receiving portion 4251 may include a mounting connection portion 4257 extending rearward from the mounting surface (4251a) and connected to the mounting peripheral portion (4253).

The mounting connection part 4257 may face the outer circumferential surface of the driving part M, and may be provided to prevent contact with the driving part M.

Specifically, the mounting connection portion 4257 may extend so as to increase in diameter toward the rear from the mounting surface 4251a. The mounting connection portion 4257 may protect the driving unit M from external impact, and contact with the driving unit M may be prevented as much as possible.

In summary, the mounting connection portion 4257 may be connected from the radially outer side of the mounting portion 425 based on the mounting surface 4251a, and the mounting circumference portion 4253 may be connected from the radially outer side of the mounting connection portion 4257. , A flow inner peripheral portion (4231b) from the radially outer side of the mounting peripheral portion (4253) can be connected.

In addition, the mounting receiving portion 4251 may include mounting support portions 4251d and 4251e that protrude rearward from the mounting surface 4251a. For example, the mounting support portions 4251d and 4251e may protrude rearward so that a portion of the mounting surface 4251a is bent backward to form a space therein. The mounting support parts 4251d and 4251e may increase the structural rigidity of the mounting surface 4251a, and may serve to guide the coupling of the bracket supporting the coupling of the driving unit M.

The mounting support portions 4251d and 4251e may be provided in plurality, and may be spaced apart from each other in the radial direction to further increase the structural rigidity of the mounting surface 4251a.

The mounting support parts 4251d and 4251e may be provided in a shape corresponding to the mounting surface 4251a. For example, the mounting surface 4251a may be provided in an annular shape, and the mounting support portions 4251d and 4251e may also be provided in an annular shape.

In addition, the mounting support parts 4251d and 4251e may protrude except for a predetermined section so that a terminal (not shown) of the stator 510 can be located. That is, the mounting support portions 4251d and 4251e may have an annular shape with one side open, and may extend in an arc shape. According to an embodiment of the present invention, a stable coupling structure of the driving unit M may be implemented by locating the terminal in a region that does not protrude from the mounting support portions 4251d and 4251e.

In addition, the mounting receiving portion 4251 may include a wire support portion (4251c) provided in the mounting connection (4257).

Specifically, the wire support portion 4251c may be provided to face an area in which the terminal is located among the mounting surfaces 4251a and where the mounting support portions 4251d and 4251e are not provided, and prevent interference with other configurations of the wire and connect the terminal to the terminal. can guide you

The wire support portion 4251c may be provided to protrude from the mounting connection portion 4257 and may include a hole through which the wire may pass. The hole can be secured more than a predetermined length, so that the electric wire can be more strongly supported.

The wire support portion 4251c may be provided integrally with the rear plate 420 or may be separately manufactured and combined. For example, FIG. 11 shows that the wire support part 4251c is separately manufactured and coupled to the rear plate 420 through a fastening member.

Meanwhile, FIGS. 13 and 14 are views showing a driving part rib of the rear cover according to an embodiment of the present invention. Specifically, FIG. 13(a) is a front perspective view of the driving part rib of the rear cover, and FIG. 13(b) shows the driving part rib as viewed from the front. 14(a) is a rear perspective view of the driving part rib of the rear cover, and FIG. 14(b) shows the driving part rib as viewed from the rear.

As described above, the protruding length of the driving part rib may be varied. 9 and 12 show that the protruding length of the driving part rib is shorter than the entire length of the driving part, and in FIGS. 13 and 14 , the protruding length of the driving part rib corresponds to the overall length of the driving part, so that the driving part as a whole is the driving part. Wrapped by the rib is shown.

13 and 14, the driving part rib 435 according to an embodiment of the present invention may have a protruding length corresponding to the driving part M, and is provided to surround the driving part M to protect it from external impact. It is possible to protect the driving unit (M).

The driving part rib 435 may protrude forward from the cover shielding part 431b to face the mounting part 425 , and may be provided to surround the driving part M. Specifically, the driving part rib 435 may be provided such that an end faces the mounting peripheral portion 4253 and an inner peripheral surface thereof is spaced apart from the outer peripheral surface of the driving part M to surround the outer peripheral surface of the driving part M.

That is, when an impact is applied from the outside, the driving part rib 435 has an end in contact with the mounting peripheral part 4253 to support the entire rear cover 430, and the rear cover 430 and the driving part M are contact can be prevented.

The driving unit M directly rotates to provide power to rotate the drum 200 , and serious damage may occur when it comes into contact with the rear cover 430 . The driving part rib 435 may preferentially contact the mounting peripheral part 4253 even when an external shock is applied to prevent contact between the driving part M and the rear cover 430 in advance.

The driving part rib 435 is provided so that the end is in contact with the mounting circumference 4253 even if there is no external impact, or the end is spaced apart from the mounting circumference 4253, and the mounting circumference 4253 and It may be provided to be in contact.

For example, in FIG. 14 , it is shown that the end of the driving part rib 435 is in contact with the mounting peripheral part 4253 even if there is no external impact. However, the interpretation is not limited thereto.

Meanwhile, FIG. 15 is a cross-sectional view in which the rear cover according to FIGS. 13 and 14 is coupled to the rear plate.

13 and 15 , the driving part rib 435 according to an embodiment of the present invention may partition the driving part M and the flow part 4231 of the duct part 423 .

As described above, the driving unit M generates heat by itself by rotation, and the flow unit 4231 may be heated by hot air flowing therein. The flow part 4231 may be advantageous in terms of drying efficiency to prevent heat from being emitted to the outside, and it may be advantageous for the driving part M to prevent the inflow of heat from the outside for smooth operation.

That is, the driving part rib 435 divides the driving part M and the flowing part 4231 to prevent heat that can be emitted from the flowing part 4231 from being transferred to the driving part M as much as possible.

Specifically, the driving part rib 435 may have an end positioned at the rear of the mounting circumferential part 4253 to partition the flow part 4231 and the driving part M.

That is, the rear cover 430 may have an arrangement space F in which the duct part 423 and the driving part M can be disposed, and the driving part rib 435 has an end of the mounting peripheral part 4253. may be in contact with and divide the arrangement space F into a first arrangement space F1 in which the flow part 4231 is disposed and a second arrangement space F2 in which the driving unit M is disposed.

The first arrangement space F1 may be formed outside the driving unit rib 435 , and the second arrangement space F2 may be formed inside the driving unit rib 435 .

Specifically, the first arrangement space F1 includes the rear surface of the rear plate 420 , the duct cover circumference 431a of the rear cover 430 , the cover shielding part 431b of the rear cover 430 and the driving part rib 435 . ), and the second arrangement space F2 is formed by the rear surface of the rear plate 420, the cover shielding part 431b of the rear cover 430, and the inner peripheral surface of the driving part rib 435. can

That is, in one embodiment of the present invention, the driving part rib 435 divides the first arrangement space F1 and the second arrangement space F2 between the first arrangement space F1 and the second arrangement space F2. heat exchange can be suppressed.

Also, referring to FIG. 14 , a heat dissipation space G may be formed in the driving part rib 435 according to an embodiment of the present invention. The heat dissipation space G may be a space for dissipating heat generated by the driving unit M to the outside.

The driving part rib 435 may have a heat dissipation space G formed therein, and a rear surface thereof may be opened.

Specifically, the driving rib 435 may include a rib inner peripheral portion 4353 surrounding the heat dissipation space (G) from the inside and a rib outer peripheral portion 4351 surrounding the heat dissipation space (G) from the outside, and the rib inner circumference A heat dissipation space (G) may be formed between the 4353 and the rib outer peripheral portion (4351). The rib inner peripheral portion 4353 may be an inner peripheral surface of the driving part rib 435 , and the rib outer peripheral part 4351 may be an outer peripheral surface of the driving part rib 435 .

The inner circumference of the rib 4353 may extend so as to increase in diameter toward the front of the rear cover 430 to prevent contact with the driving unit M, or may extend to have a constant diameter.

The outer rib portion 4353 may extend so as to decrease in diameter toward the front from the rear cover 430 to prevent contact with the duct portion 423 or may extend to have a constant diameter.

For example, in FIG. 14 , the rib inner peripheral portion 4353 extends toward the front from the rear cover 430 to increase in diameter, and the rib outer peripheral portion 4351 extends toward the front from the rear cover 430 with a constant diameter. is shown to be However, the interpretation is not limited thereto, and the diameters of the rib inner peripheral portion 4353 and the rib outer peripheral portion 4351 may be variously set through the arrangement relationship between the duct portion 423 and the driving portion M.

The heat dissipation space G may be partitioned from the first arrangement space F1 and the second arrangement space F2 through the driving part rib 435 . The heat dissipation space (G) may be partitioned from the first arrangement space (F1) through the rib outer peripheral portion (4351) and may be partitioned from the second arrangement space (F2) through the rib inner peripheral portion (4353).

The heat dissipation space G may promote heat exchange between the second arrangement space F2 in which the drive unit M is disposed and the outside through the rib inner peripheral portion 4353 facing the drive unit M.

In addition, the driving part rib 435 according to an embodiment of the present invention may include a rib slit part 4355 for communicating the mounting part 425 and the heat dissipation space (G).

The rib slit part 4355 may be provided in the rib inner peripheral part 4353 to communicate the second arrangement space F2 and the heat dissipation space G, and may radiate heat generated by the driving unit M to the outside. . In addition, since the rib slit part 4355 is not formed on the rib outer peripheral part 4351 , it is possible to prevent the heat of the first arrangement space F1 from being radiated to the outside.

The rib slit part 4355 may extend along the protruding direction of the driving part rib 435 , and a plurality of rib slit parts 4355 may be provided to be spaced apart along the circumference of the rib inner peripheral part 4353 , so that the second arrangement space F2 and By sufficiently securing an area in which the heat dissipation space G communicates, heat exchange with the outside may be more actively generated.

For example, in FIG. 13 , the rib slit part 4355 is shown in a slit shape. However, the present invention is not limited thereto, and the rib slit part 4355 has various shapes in consideration of the shape of the driving part rib 435 , the separation distance between the driving part M and the rib inner peripheral part 4353 and the degree of heat generation of the driving part M. can be provided as

In addition, the rib slit part 4355 may be spaced apart at the same distance along the circumference of the rib inner peripheral part 4353, so that the entire driving part rib 435 is sufficiently secured with the second arrangement space F2 and the external communication area. It is possible to prevent the structural stiffness from being reduced as much as possible.

In addition, referring to FIGS. 13 and 14 , the rear cover 430 according to an embodiment of the present invention may include a heat dissipation hole 4361 for communicating the mounting portion 425 and the outside.

That is, the heat dissipation hole 4361 may communicate the second arrangement space F2 with the outside to discharge heat generated by the driving unit M to the outside.

Specifically, the heat dissipation hole 4361 may be provided in the cover receiving portion 436 connected to the rib inner peripheral portion 4353, and may be provided together or alone with the above-described rib slit portion 4355.

The heat dissipation hole 4361 may directly communicate the outside and the second arrangement space F2 without passing through the heat dissipation space G to dissipate the heat of the second arrangement space F2 to the outside. The arrangement space F2 and the external communication area can be sufficiently secured. The heat dissipation hole 4361 will be described in detail later.

Meanwhile, the cover accommodating part 436 according to an embodiment of the present invention may include a cover recessed part 4363 that is recessed away from the driving part M on one surface of the cover accommodating part 436 .

The cover recessed part 4363 is recessed away from the rearwardly protruding part from the front of the cover receiving part 436 corresponding to the rearwardly protruding part of the driving part M to prevent contact with the driving part M as much as possible. can

Specifically, the driving unit M may include a driving rotation shaft MS coupled to the drum rear surface 220 through the mounting receiving portion 4251 of the mounting portion 425, and the driving rotation shaft MS is the drum rear surface ( 220) may extend from one end coupled to the other end facing the cover receiving portion 436. The driving rotation shaft MS may include a drum rotation shaft 650 of the reducer 600 and a driving shaft 530 of the motor unit 500 to be described later.

As the other end of the driving rotation shaft MS may face the cover accommodating portion 436 and the other end may protrude further rearward than the other portions of the driving portion M, the cover recessed portion 4363 may be formed by the driving rotation shaft. It is recessed to the rear at a position corresponding to (MS), so that contact with the driving rotation shaft (MS) can be prevented as much as possible.

For example, in FIG. 15 , the driving rotation shaft MS is provided at the center of the driving unit M, and the cover depression 4363 is provided in the center of the cover receiving unit 436 corresponding thereto.

In addition, the cover accommodating part 436 according to an embodiment of the present invention may be provided with a heat dissipation hole 4361 in an area excluding the cover recessed part 4363 . That is, the cover accommodating part 436 according to an embodiment of the present invention may further include a cover heat dissipation part 4365 surrounding the cover recessed part 4363, and the heat dissipation hole 4361 is a cover heat dissipation part 4365 . ) can be provided.

The cover heat dissipation part 4365 may be connected to the rib inner peripheral part 4353 of the driving part rib 435, and as the cover recessed part 4363 is recessed to the rear, it may protrude relatively forward than the cover recessed part 4363. Or it may be provided to protrude forward from one surface of the cover receiving portion (436).

The driving unit M may have a plurality of slits capable of dissipating heat along the circumferential direction of the driving unit M on one surface facing the cover heat dissipation unit 4365, and the heat dissipation hole 4361 may be formed in the cover heat dissipation unit ( 4365) to more efficiently dissipate the heat of the driving unit M to the outside.

The heat dissipation hole 4361 may be provided in plurality, and may be provided to be spaced apart along the radial or circumferential direction of the cover heat dissipation unit 4365 to more efficiently dissipate the heat of the driving unit M.

In addition, the heat dissipation hole 4361 can be prevented from being concentrated in a certain portion of the cover heat dissipation part 4365 , so that a decrease in structural rigidity due to the heat dissipation hole 4361 can be minimized.

For example, in FIGS. 13 and 14, the cover recessed part 4363 is shown in a circular shape in the center of the cover receiving part 436, and the cover heat dissipation part 4365 surrounds the cover recessed part 4363 and has a rib inner peripheral portion ( 4353 is shown as an annular shape connected to, and the heat dissipation hole 4361 is shown to be radially disposed in the cover heat dissipation part 4365 . That is, the heat dissipation holes 4361 are evenly spaced apart from the cover heat dissipation unit 4365 as a whole, so that the structural rigidity of the cover receiving unit 436 as a whole is prevented from being reduced as much as possible.

Meanwhile, FIG. 16 is a view showing a water reservoir, a drain pipe, and a return pipe according to an embodiment of the present invention.

The laundry treatment apparatus 10 according to an embodiment of the present invention may include a drain unit 890 for guiding the condensed water from the water collecting unit 170 to the water storage unit 7 .

As described above, the clothes treatment apparatus 10 includes an evaporator 951 that removes water vapor from the hot air discharged from the drum 200 , a water collecting unit 170 that stores condensed water formed in the evaporator 951 , and a water collecting unit. It may include a water storage unit 7 provided to receive and store the condensed water stored in 170 , and connect the water collection unit 170 and the water storage unit 7 to collect the condensed water of the water collection unit 170 into the water storage unit. (7) may further include a drainage unit 890 for guiding. The evaporator 951 may mean a water vapor removal unit that removes water vapor.

The drain unit 890 includes a drain pipe 891 connecting the water collection unit 170 and the water storage unit 7 and a drain pump 897 that provides power for the condensed water of the water collection unit 170 to flow to the water storage unit 7 . may include.

The drain pipe 891 may provide a movement path through which the condensed water of the water collecting unit 170 carried by the drain pump 897 is guided to the water storage unit 7 . The drain pipe 891 may be provided with a rubber hose or a pipe. For convenience of description, water in the water collecting unit 170 may be used in the same sense as condensed water.

Referring to FIG. 11 together, the drain pipe 891 according to an embodiment of the present invention may be provided such that at least a part thereof is exposed to the outside.

Specifically, the drain pipe 891 may extend to the outside through the rear plate 420 in the water collecting unit 170, and extend along the rear surface of the rear plate 420 from the outside, and again the rear plate 420. It may be connected to the water reservoir 7 through it.

As described above, since the water collecting unit 170 may be provided on the lower plate 147 and the water storage unit 7 may be provided on the upper plate 145 , the drain pipe 891 is disposed in the water collecting unit 170 . It can extend toward the upper plate 145 from the outside through one side close to the lower plate 147 of the rear plate 420 and passes through the other side close to the upper plate 145 of the rear plate 420 again. (7) can be connected.

The water collecting unit 170 and the water storage unit 7 may be provided inside the cabinet 100 , and the drain pipe 891 may be provided such that a part of the drain pipe 891 is exposed outside the rear plate 420 , so that the inside of the cabinet 100 . The usable space can be increased.

For example, as at least a portion of the drain pipe 891 is exposed to the outside, the drum 200 may expand in size compared to a case in which the drain pipe 891 is provided only inside the cabinet 100, thereby increasing the clothing storage capacity. .

From another point of view, by making the drum 200 in the cabinet 100 to the maximum size and locating a part of the drain pipe 891 outside the cabinet 100 having insufficient free space, the utilization of the internal space of the cabinet 100 is increased. may be understood to be

More specifically, the drain pipe 891 extends along the rear surface of the rear plate 420 from the water collecting pipe 8911 and the water collecting drain pipe 8911 extending from the water collecting unit 170 through the rear plate 420 to the outside. It may include a drain exposed pipe 8913 and a water storage drain pipe 8915 connected to the water storage unit 7 through the rear plate 420 in the drain exposed pipe 8913 .

The water collection and drain pipe 8911, the drain exposed pipe 8913, and the water storage drain pipe 8915 may be separately manufactured and combined or may be integrally manufactured to form a single pipe. That is, the drain pipe 891 may include a water collection drain pipe 8911, a drain exposed pipe 8913, and a water storage drain pipe 8915, and the water collection and drain pipe 8911, the drain exposed pipe 8913 and the water storage drain pipe 8915 are A drain pipe 891 may be formed together.

Meanwhile, in the drain pipe 891 , a water collection drain pipe 8911 , a drain exposed pipe 8913 , and a water storage drain pipe 8915 may be sequentially disposed. For example, in the drain pipe 891 , the water collecting drain pipe 8911 , the drain exposed pipe 8913 , and the water storage drain pipe 8915 may be sequentially connected with respect to the water collecting unit 170 .

That is, the water of the water collecting unit 170 may sequentially flow through the water collecting and draining pipe 8911 , the draining exposed pipe 8913 , and the draining exposed pipe 8931 to be guided to the water storage 7 .

On the other hand, the drain exposure pipe 8913 extends along the outer circumferential surface of the duct part 423 and may extend so as to be in contact with the outer circumferential surface of the duct part 423 or the inner circumferential surface of the rear cover 430 , the outer circumferential surface of the duct part 423 . Alternatively, it may be supported by the inner circumferential surface of the rear cover 430 .

Specifically, the drain exposed pipe 8913 extends between the flow outer peripheral portion 4231a and the coupling cover circumference portion 433a of the duct portion 423 so as to contact both the flow outer circumference portion 4231a and the coupling cover circumference portion 433a. can be, so the position can be fixed.

On the other hand, the drain pump 897 of the drain unit 890 can transport the water of the water collecting unit 170 to the water storage unit 7 , and the water storage drain pipe 8915 of the drain pipe 891 is connected to the water storage unit 7 and the water storage unit 7 . The connected part is located above the water storage unit 7, so that water can be supplied to the upper part of the water storage unit 7, so that even if the operation of the drain pump 897 is stopped, the water of the water storage unit 7 is transferred to the water storage drain pipe 8915. It is possible to prevent backflow to the water collecting unit 170 through the

For example, in FIG. 16 , a water storage drain pipe 8915 extends from the inside of the cabinet 100 toward the upper plate 145 , a part of it extends in parallel with the upper plate 145 , and is again connected to the upper part of the water storage unit 7 downward so as to be connected. It is shown that it is provided in a curved shape.

Meanwhile, referring back to FIG. 16 , the clothes treatment apparatus 10 according to an embodiment of the present invention may include a return pipe 893 for guiding the water stored in the water storage unit 7 to the water collecting unit 170 . have.

The return pipe 893 transfers the water stored in the water storage unit 7 to the water collecting unit 170 to prevent the water stored in the water storage unit 7 from overflowing when the water stored in the water storage unit 7 is filled to a certain height or higher. can guide you That is, the return tube 893 may be a kind of overflow tube.

Like the drain pipe 891 , the return pipe 893 may be provided such that a part thereof is exposed to the outside, and the space that can be utilized inside the cabinet 100 may be increased.

The return pipe 893 may extend to the outside through the rear plate 420 in the reservoir 7, may extend along the rear surface of the rear plate 420 from the outside, and again the rear plate 420 It may pass through and be connected to the water collecting unit 170 .

As described above, since the water collecting unit 170 may be provided on the lower plate 147 and the water storage unit 7 may be provided on the upper plate 145 , the return pipe 893 is connected to the water storage unit 7 . It can extend toward the lower plate 147 from the outside through the other side close to the upper plate 145 of the rear plate 420 and passes through one side close to the lower plate 147 of the rear plate 420 again. It may be connected to the receiver 170 .

Specifically, the return pipe 893 passes through the rear plate 420 in the reservoir 7 and extends outward from the reservoir return pipe 8935 and the reservoir return pipe 8935 along the rear surface of the rear plate 420 . It may include a return exposed pipe 8933 that extends and a water collection return pipe 8931 connected to the water collecting unit 170 through the rear plate 420 in the return exposed pipe 8933 .

The water collection return pipe 8931, the return exposure pipe 8933, and the water storage return pipe 8935 may be separately manufactured and combined or may be integrally manufactured to form a single pipe. That is, the return pipe 893 may include a collection return pipe 8931 , a return exposure pipe 8933 and a water storage return pipe 8935 , and a collection return pipe 8931 , a return exposure pipe 8933 , and a water storage return pipe. The tube 8935 may together form the return tube 893 .

On the other hand, in the return pipe 893, a water storage return pipe 8935, a return exposure pipe 8933, and a water collection return pipe 8931 may be sequentially disposed. For example, in the return pipe 893 , the water storage return pipe 8935 , the return exposure pipe 8933 , and the water collection return pipe 8931 may be sequentially connected with respect to the water storage unit 7 .

That is, the water of the water storage unit 7 may sequentially flow through the water storage return pipe 8935 , the return exposure pipe 8933 , and the water collection return pipe 8931 to be guided to the water collection unit 170 .

For example, the return exposure pipe 8933 may extend from the rear surface of the rear plate 420 , and interference with the flow portion 4231 provided in an annular shape on the rear plate 420 may be prevented, and the flow portion 4231 may be prevented from interfering with the flow portion 4231 . may be further extended to both sides of the rear plate 420 .

In addition, the return exposed pipe 8933 may extend along the outer circumferential surface of the duct portion 423 together with the drain exposed pipe 8913 . Specifically, any one of the return exposed pipe 8933 and the drain exposed pipe 8913 may extend to contact the flow outer peripheral portion 4231a, and the other may extend to contact the coupling cover peripheral portion 433a. , the return exposed pipe 8933 and the drain exposed pipe 8913 may be supported by the flow outer peripheral portion 4231a and the combined cover peripheral portion 433a as a whole between the flow outer peripheral portion 4231a and the coupling cover peripheral portion 433a. .

However, the drain exposed pipe 8913 may be provided with an external discharge pipe 895 to be described later, and the drain exposed pipe 8913 is in contact with the coupling cover peripheral portion 433a so that the external discharge pipe 895 can be easily provided. The return exposure pipe 8933 may be provided to be in contact with the flow outer peripheral portion 4231a corresponding thereto.

Meanwhile, referring back to FIGS. 11 and 16 , the drain pipe 891 and the return pipe 893 according to an embodiment of the present invention may both pass through the rear plate 420 and extend to the outside.

Specifically, the rear plate 420 is spaced apart from the water collection connection hole 4277 formed through one surface of the rear plate 420 and the water collection connection hole 4277, and is formed through one surface of the rear plate 420 . A connection hole 4725 may be included.

The water collection connection hole 4277 may be extended from the water collection unit 170 to the outside through the water collection and drain pipe 8911 and the water collection return pipe 8931 passing through, and the water storage connection hole 4725 is formed between the water storage drain pipe 8915 and the water storage unit. The return pipe 8935 may penetrate together and extend from the water reservoir 7 to the outside, so that the drain exposed pipe 8913 and the return exposed pipe 8933 are in contact and extend along the outer circumferential surface of the duct part 423 together. it can be easy

The water collecting connection hole 4277 can support the water collecting and draining pipe 8911 and the collecting return pipe 8931 so that they come into contact with each other, and the water storing connecting hole 4725 is so that the water collecting and draining pipe 8915 and the water collecting return pipe 8935 are in contact with each other. Together we can support

That is, the water collecting and draining pipe 8911 and the collecting return pipe 8931 are in contact with each other and can be supported by being in contact with the inside of the water collecting connection hole 4277, and the water collecting and draining pipe 8915 and the water collecting return pipe 8935 are also in contact with each other. and may be supported in contact with the inner side of the water storage connection hole 4725 . Accordingly, the locations of the drain pipe 891 and the return pipe 893 may be fixed to the rear plate 420 even if the drain exposed pipe 8913 and the return exposed pipe 8933 are provided outside.

In addition, the rear plate 420 has a water collecting and draining pipe 8911 and a collecting return pipe 8931, rather than having separate holes through which the water collecting and draining pipe 8911 and the collecting return pipe 8931 pass through the rear plate 420 are separately formed. It is convenient in terms of manufacturing to pass through the water collection connection hole 4277 together, and it is possible to reduce unnecessary penetration portions of the rear plate 420 . The same effect can be obtained by passing the water storage drain pipe 8915 and the water storage return pipe 8935 together through the water storage connection hole 4725 .

Meanwhile, referring back to FIG. 11 , the water collection connection hole 4277 and the water storage connection hole 4725 according to an embodiment of the present invention may be provided in the rear cover coupling part 427 .

The water collection connection hole 4277 and the water storage connection hole 4725 may be provided to be spaced apart from the duct part 423 through the rear cover coupling part 427, and the water collection connection hole 4277 and the water storage connection hole 4275. The drain pipe 891 and the return pipe 893 passing through can be prevented from interfering with the duct part 423 through which hot air flows.

Specifically, the rear cover coupling part 427 may include a floating cover extension part 4279 provided with a water collection connection hole 4277 and a water storage connection hole 4725 .

The rear cover coupling part 427 includes a movable cover coupling part 4278 provided in a shape corresponding to the flow part 4231 and a floating cover extension part extending away from the flow part 4231 in the movable cover coupling part 4278. (4279).

Specifically, the flow part 4231 may be provided in an annular shape, the flow cover coupling part 4278 may be provided in an annular shape, and the flow cover extension part 4279 is the flow part (in the flow cover coupling part 4278). 4231) may extend away in the radial direction.

As the water collection connection hole 4277 and the water storage connection hole 4725 are provided in the flow cover extension part 4279, they can be spaced apart from the flow part 4231 as much as possible, and the water collection connection hole 4277 and the water storage connection hole 4275. The drain pipe 891 and the return pipe 893 passing through can be further prevented from interfering with the flow part 4231 through which the hot air flows.

In addition, the flow cover extension portion 4279 includes a water collecting extension portion 4279a and a flow cover coupling portion 4278 extending in the radial direction of the flow portion 4231 from the flow cover coupling portion 4278 toward the lower plate 147. It may include a water storage extension portion (4279b) extending in the radial direction of the flow portion (4231) toward the upper plate (145).

The water collecting extension 4279a may extend downward from one side close to the lower plate 147 of the floating cover coupling portion 4278, and the water storage extending portion 4279b is the upper plate 145 of the floating cover coupling portion 4278. It can be extended upward from the other side close to

The water collection connection hole 4277 is provided in the water collection extension part 4279a, is spaced apart from the flow part 4231 as much as possible, and may be positioned to be close to the water collection part 170, and the water storage connection hole 4725 is the water storage extension part 4279b. ) and spaced apart from the flow part 4231 as much as possible, and may be positioned so as to be close to the reservoir part 7 .

Accordingly, the distance between the water collection connection hole 4277 and the water collection unit 170 can be minimized, and the overall length of the water collection and drain pipe 8911 and the water collection return pipe 8913 can be reduced, which can be advantageous in terms of manufacturing. It may be advantageous to arrange to prevent interference with other components inside the cabinet 100 .

In addition, the distance between the water storage connection hole 4275 and the water storage unit 7 can be minimized, and the overall length of the water storage drain pipe 8915 and the water storage return pipe 8935 can be reduced, which can be advantageous in terms of manufacturing and cabinet. (100) It may be advantageous to arrange it so that interference with other components inside is prevented.

Meanwhile, the water collection connection hole 4277 and the water storage connection hole 4725 according to an embodiment of the present invention may be provided closer to the other side of both sides of the cabinet 100 .

As described above, the hot air flow path part 920 of the hot air supply unit 900 may be provided closer to one side of both sides of the cabinet 100 , and the water collecting unit 170 and the water storage unit 7 are the cabinet 100 . ) may be provided closer to the other side of both side surfaces, so that the water collection connection hole 4277 and the water storage connection hole 4725 may be provided closer to the other side of both side surfaces of the cabinet 100 . One side of the cabinet 100 may be a first side plate 1411 , and the other side of the cabinet 100 may be a second side plate 1413 .

That is, the water collection connection hole 4277 and the water storage connection hole 4725 are disposed close to the second side plate 1413 of the side plates 141 of the cabinet 100 to connect the water collection unit 170 and the water storage unit 7 to each other. The connection length of the drain pipe 891 and the return pipe 893 to be connected can be minimized, and the interference between the drain pipe 891 and the return pipe 893 with the hot air flow passage unit 920 can be minimized.

When viewed from another perspective, the above-described floating cover extension portion 4279 may extend from the floating cover coupling portion 4278 toward the second side plate 1413 .

That is, both the water collection extension 4279a and the water storage extension 4279b may extend toward the second side plate 1413 from the floating cover coupling portion 4278, and the water collection connection provided in the water collection extension portion 4279a. Both the hole 4277 and the water storage connection hole 4725 provided in the water storage extension part 4279b may be located close to the second side plate 1413 .

In addition, the water collecting extension (4279a) and the water storage extension (4279b) may extend to the side plate coupling part coupled to the second side plate 1413 of the rear plate 420, and the floating cover coupling part 4278 and Together with the above-described side plate coupling portion and the coupling support portion 424 may be formed therebetween. That is, the water collecting extension 4279a and the water storage extension 4279b increase the length of the coupling support 424 to provide a stronger bonding force to the rear cover 430 .

Meanwhile, FIG. 17 is a view showing the rear cover and the cover opening and closing part provided to cover the drain pipe and the return pipe according to an embodiment of the present invention.

Referring back to FIG. 17 , the drain pipe 891 according to an embodiment of the present invention may include an external discharge pipe 895 provided to discharge the water of the water collecting unit 170 to the outside.

The external discharge pipe 895 may be provided in the drain exposed pipe 8913 of the drain pipe 891 exposed to the outside.

Since the external discharge pipe 895 is provided in the drain exposed pipe 8915 of the drain pipe 891, the user does not directly withdraw the water from the water collection unit 170 guided to the water storage unit 7 and discharge the water storage tank. The laundry treatment apparatus 10 according to an embodiment of the present invention may be provided such that water from the water collecting unit 170 is directly discharged to the outside through an external discharge pipe 895 without a user's separate operation.

Specifically, the external discharge pipe 895 may be provided in the drain exposure pipe 8913 located close to the water collection connection hole 4277 as it discharges the water carried by the drain pump 897 to the outside, and the drain pump At 897, the distance for guiding the water of the water collecting unit 170 to the external discharge pipe 895 is minimized, so that unnecessary waste of energy of the drain pump 897 can be prevented.

The external discharge pipe 895 may be connected to the sewer through a separate hose, etc., and one end is connected to the drain exposure pipe 8915 so that a separate hose can be easily arranged and combined, and the other end is a side plate 141 . It can be provided facing.

For example, in FIG. 17, the drain exposure pipe 8913 extends along the rear surface of the rear plate 420 at a position closer to the second side plate 1413 than the first side plate 1411, and the external discharge pipe 895 is the first It is shown that it is adjacent to the second side plate 1413 and the other end extends toward the second side plate 1413 to discharge the water flowing through the drain exposure pipe 8913 .

The external discharge pipe 895 may be provided integrally with the drain exposed pipe 8913 and branched from the drain exposed pipe 8913 or may be separately manufactured and coupled to the drain exposed pipe 8913 .

In addition, referring to FIG. 17( c ), an embodiment of the present invention may include a discharge pipe support member 8951 provided to support the external discharge pipe 895 .

The discharge pipe support member 8951 may be provided on the rear coupling recessed surface 427d of the rear cover coupling part 427 , and the outside discharge pipe 895 passes through the inner circumferential surface to support the outside discharge pipe 895 .

The discharge pipe support member 8951 is coupled to the first discharge pipe support member 8951a and the rear coupling recessed surface 427d that is in contact with the rear coupling recessed surface 427d to support the external discharge pipe 895 to connect the external discharge pipe 895. It may include a second discharge pipe support member (8951b) for supporting.

The end of the first discharge pipe support member 8951a may be in contact with the rear coupling recessed surface 427d, and may be provided in plurality to more strongly support the external discharge pipe 895 .

Specifically, the first discharge pipe support member (8951a) is provided in a plate shape, through which the external discharge pipe 895 passes, and may be provided integrally with the external discharge pipe 895 or may be separately manufactured and combined, and a plurality of external discharge pipes are provided. (895) may be provided spaced apart in the longitudinal direction.

The second discharge pipe support member 8951b may be fixed to the rear coupling recessed surface 427d to support the external discharge pipe 895 .

Specifically, the second discharge pipe support member 8951b may be manufactured such that a space through which the external discharge pipe 895 passes is formed inside by bending the plate, and the overlapping both ends of the plate are coupled to the rear through a separate fastening member. (427d) can be bound.

That is, the second discharge pipe support member 8951 may be coupled to the rear coupling recessed surface 427d to provide a strong supporting force to the external discharge pipe 895 .

In addition, the first discharge pipe support member (8951a) and the second discharge pipe support member (8951b) may be mutually supported.

Specifically, the second discharge pipe support member 8951b may be disposed between the plurality of first discharge pipe support members 8951a, and the first discharge pipe support member 8951a is higher than the second discharge pipe support member 8951b. It can protrude further to the rear.

The first discharge pipe support member 8951a and the second discharge pipe support member 8951b may be supported in contact with each other, and the second discharge pipe support member 8951b is provided through the rear protruding portion of the first discharge pipe support member 8951a. It can be prevented from shaking due to vibration.

Meanwhile, referring to FIG. 17 , the rear cover 430 according to an embodiment of the present invention may be provided to cover the drain pipe 891 and the return pipe 893 .

That is, the rear cover 430 can cover the exposed drain pipe 8913 and the return exposed pipe 8933 exposed to the outside to protect them from external impact, and the drain exposed pipe 8913 and the return exposed pipe 8933 are It is possible to improve aesthetics by preventing exposure to the outside as much as possible.

The rear cover 430 may be provided to cover at least a portion of the drain exposed pipe 8913 and at least a portion of the return exposed pipe 8933 . That is, the rear cover 430 is provided to cover a part of the exposed drain pipe 8913 and a part of the return exposed pipe 8933 or to cover all of the drain exposed pipe 8913 and all of the return exposed pipe 8933 . can be provided.

For example, FIG. 17 shows that the rear cover 430 covers all of the drain exposed pipe 8913 and all of the return exposed pipe 8933 . Hereinafter, for convenience of description, description will be made on the basis that the rear cover 430 covers all of the drain exposed pipe 8913 and all of the return exposed pipe 8933 .

Specifically, the rear cover 430 may be provided such that the duct cover 431 covers one side of the drain exposed pipe 8913 toward the water collection connection hole 4277 .

The duct cover peripheral portion 431a may be provided to correspond to the flow outer peripheral portion 4231a as a whole, and may be extended toward the one side of the drain exposed pipe 8913 and away from the flow outer peripheral portion 4231a, and the coupling portion cover A duct cover 431 having a relatively larger space therein than 433 may cover the vicinity of the water collection connection hole 4277 .

For example, the duct cover circumferential portion 431a may be provided in a generally circular shape to correspond to the flow portion 4231, and extend in the radial direction of the flow portion 4231 from the lower side to the second side plate 1413 and the lower plate. It can be extended towards (147). From another point of view, the duct cover 431 may cover at least a portion of the water collecting extension portion 4279a provided with the water collecting connection hole 4277 .

As described above, an external discharge pipe 895 may be provided on one side of the drain exposure pipe 8913, and a discharge pipe support member 8951 for supporting the external discharge pipe 895 may be provided on the external discharge pipe 895, and , the duct cover 431 can easily cover the water collection connection hole 4277, one side of the drain exposed pipe 8913, the external discharge pipe 895, the discharge pipe support member 8951, and the like.

In addition, the rear cover 430 may be provided such that the coupling part cover 433 covers the other side of the drain exposed pipe 8913 toward the water collecting connection hole 4277 .

The duct cover peripheral portion 431a may be provided to correspond to the flow outer peripheral portion 4231a as a whole, does not extend toward the other side of the drain exposed pipe 8913, and the cover extension portion 433b is the duct cover peripheral portion 431a ) and the coupling cover peripheral portion (433a) can be connected.

That is, the coupling part cover 433 having a smaller space therein than the duct cover 431 may cover the other side of the drain exposure pipe 8913 . Unlike the one side, the other side of the drain outlet pipe 8913 is not provided with a separate configuration, so that the other side of the drain outlet pipe 8913 can be easily covered with only the coupling part cover 433 .

For example, the duct cover peripheral portion (431a) may be provided in a circular shape so that the upper side corresponds to the flow portion (4231). From another point of view, the coupling part cover 433 may cover at least a part of the water storage extension part 4279b provided with the water storage connection hole 4275 .

However, although it was described above that the duct cover 431 covers the vicinity of the water collection connection hole 4277 and the coupling part cover 433 covers the vicinity of the water storage connection hole 4275, the configuration disposed near the water collection connection hole 4277 and the storage connection In consideration of the configurations disposed near the hole 4275 , the duct cover 431 or the coupling part cover 433 may selectively cover the water collection connection hole 4277 and the water storage connection hole 4275 .

In summary, the rear cover 430 according to an embodiment of the present invention is provided with a duct cover 431 and a coupling part cover 433 in consideration of the volume of components protruding backward from the rear surface of the rear plate 420 . It is possible to set the position, and it is possible to easily cover the components located on the rear surface of the rear plate 420 while minimizing the volume.

On the other hand, referring back to FIGS. 11 and 17 , the rear cover 430 according to an embodiment of the present invention is provided to discharge water flowing through the drain exposure pipe 8913 to the outside through the external discharge pipe 895 . The cover through portion 437 may include a rule.

The cover through portion 437 may be formed through one side of the rear cover 430 , and one side of the rear cover 430 may be a region facing the external discharge pipe 895 .

The cover through portion 437 may expose at least a portion of the external discharge pipe 895 to the outside through the penetrating portion, and the other end of the external discharge pipe 895 may be easily connected to a sewer located outside through a hose or the like. can do.

Specifically, the duct cover 431 may be provided to cover a part of the external discharge pipe 895 , and the cover through part 437 includes the duct cover 431 and the coupling part cover 433 of the rear cover 430 . They are formed to penetrate together, so that a larger penetration area can be secured. In addition, the cover through portion 437 is penetrated so that the discharge pipe support member 8591 is exposed to the outside, so that the maintenance of the discharge pipe support member 8591 can be easy.

In addition, the cover through portion 437 may be provided to penetrate a portion of the cover shielding portion 431b of the duct cover 431, and at the end of the cover shielding portion 431b facing the cover through portion 437 to be described later. Since the opening/closing hinge part 4393 of the cover opening/closing part 439 may be provided, the opening/closing hinge part 4393 may be easily installed.

For example, FIG. 17 shows that the cover through portion 437 is formed through the duct cover peripheral portion 431a, the cover shielding portion 431b, the coupling cover peripheral portion 433a and the cover extension portion 430b.

It is enough that the penetration area of the cover penetration part 437 and the hose connecting the external discharge pipe 895 and the sewer located outside can be easily installed, and the shape of the cover penetration part 437 depends on the manufacturing conditions and other factors. It may be set in various ways in consideration of the relationship with the configuration.

In addition, the rear cover 430 according to an embodiment of the present invention may include a cover opening and closing portion 439 provided to open and close the cover through portion 437 .

Specifically, the cover opening/closing part 439 may include an opening/closing body part 4391 provided to close the cover-through part 437 .

The opening/closing body part 4391 may be provided in a shape corresponding to the cover penetration part 437 , and may be coupled to the rear cover 430 to form a part of the rear cover 430 . That is, the opening/closing body part 4391 may be provided to form a part of the duct cover 431 and a part of the coupling part cover 433 .

For example, the opening and closing body part 4391 may form a part of the cover shielding part 431b, a part of the duct cover peripheral part 431a, a part of the cover extension part 433b, and a part of the coupling cover peripheral part 433a. And, the overall shape may be provided so as to have a step difference.

The opening/closing body part 4391 may shield the cover penetration part 437 to prevent exposure of the external discharge pipe 895 , and may form a part of the rear cover 430 , thereby providing a sense of unity in aesthetics.

In addition, the opening and closing body part 4391 may be provided to be spaced apart from the duct cover 431 and the coupling part cover 433 by a predetermined distance, and when the cover penetration part 437 is opened and closed, the duct cover 431 and the coupling part cover ( 433) can be prevented.

On the other hand, the cover opening and closing part 439 may include an opening and closing hinge part 4933 provided so that the opening and closing body part 4391 selectively opens and closes the cover through part 437 .

Specifically, the opening/closing hinge part 4933 may connect the rear cover 430 and the opening/closing body part 4391 , and the opening/closing body part 4391 may be provided to be movable in the cover penetrating part 437 . As described above, the opening/closing hinge part 4933 may connect the cover shielding part 431b and the portion forming the cover shielding part 431b of the opening/closing body part 4391 .

The opening/closing hinge part 4933 may rotate the opening/closing body part 4391 to selectively open and close the cover-through part 437 .

That is, the cover opening and closing part 439 may selectively expose the external discharge pipe 895 to the outside. For example, when the water of the water collection unit 170 is discharged to the outside through the external discharge pipe 895 , the cover through portion 437 may be opened, and the water of the water collection unit 170 to the outside through the water storage unit 7 . When discharging, the cover through portion 437 may be shielded.

Although the cover opening and closing part 439 selectively opens and closes the cover through part 437 by rotating the opening and closing body part 4391 through the opening and closing hinge part 4933, the opening and closing body part 4391 is selectively opened and closed. may be provided in another method such as a sliding method.

Meanwhile, the cover opening/closing unit 439 may include an opening/closing hook unit 4395 provided to fix the opening/closing body unit 4391 to the rear cover 430 or the rear plate 420 .

Specifically, the opening/closing hook part 4395 may be provided to protrude from the end of the opening/closing body part 4391, and is hook-coupled to the rear plate 420 or the rear cover 430 to connect the opening/closing body part 4391 to the rear plate. It may be fixed to the 420 or the rear cover 430 .

In addition, the rear plate 420 or the rear cover 430 may be provided with an opening/closing hook accommodating part 428 capable of accommodating the opening/closing hook part 4395 at a position corresponding to the opening/closing hook part 4395 .

For example, the opening/closing hook part 4395 may be provided at an end forming a part of the coupling part cover 433 of the opening/closing body part 4391 , and may face the rear surface of the rear plate 420 . In addition, the rear plate 420 may include an opening/closing hook receiving part 428 provided through the rear plate 420 at a position corresponding to the opening/closing hook part 4395 .

The opening/closing hook part 4395 may be inserted into the opening/closing hook accommodating part 428 so that the opening/closing body part 4391 may shield the cover-through part 437. (4391) can be made to open the cover through portion (437).

The opening/closing hook part 4395 and the opening/closing hook accommodating part 428 allow the opening and closing body part 4391 to shield the cover penetration part 497 when the external discharge pipe 895 is not used through a relatively simple coupling method called hook coupling. It can be fixed, and when the external discharge pipe 895 is used, the opening/closing body part 4391 can be separated to open the cover-through part 497 .

On the other hand, referring back to FIG. 16 , the drain pipe 891 according to an embodiment of the present invention selectively guides the water delivered from the water collecting unit 170 to the washing unit 940 or the drain exposure pipe 8913 . A switching valve 894 may be included.

Specifically, the flow path switching valve 894 may be provided on the water collecting and draining pipe 8911 , and the water collecting and draining pipe 8911 is a first water collecting and draining pipe 8911a connecting the flow path switching valve 894 and the water collecting unit 170 . and a second collection and drain pipe 8911b connecting the flow path switching valve 894 and the drain exposure pipe 8913.

When the water of the water collecting unit 170 is discharged to the outside, the water of the water collecting unit 170 sequentially passes through the first water collecting and draining pipe 8911a, the flow path switching valve 894 and the second collecting and draining pipe 8911b to be drained. The water may be guided to the exposed pipe 8913 , and the water guided to the drain exposed pipe 8913 may be guided to the external discharge pipe 895 or the water storage unit 7 to be discharged to the outside.

When the water of the water collecting unit 170 is used for washing, the water of the water collecting unit 170 may be guided to the washing path of the first water collecting and drain pipe 8911a, the flow path switching valve 894 and the washing unit 940, The water guided to the washing passage may flow into the evaporator 951 to wash the evaporator 951 .

The flow path switching valve 894 can selectively guide the water of the water collecting unit 170 to the washing unit 940 or the drain exposure pipe 8913 , so that the water of the water collecting unit 170 can be efficiently recycled.

Meanwhile, FIG. 18 is a view showing a fan duct unit according to an embodiment of the present invention. 19 is a view illustrating a fan duct unit connected to a hot air supply unit according to an embodiment of the present invention.

Specifically, Fig. 18 (a) is a view of the fan duct unit viewed from the front, Fig. 18 (b) is a view of the fan duct unit viewed from the rear, Fig. 18 (c) is a view of the fan duct unit viewed from below, Fig. 18 (d) is a view showing that the fan duct part is separated.

18A and 19 , the laundry treatment apparatus according to an embodiment of the present invention may include a fan duct unit 850 for supplying hot air from the hot air supply unit 900 to the duct unit 423 . have.

Specifically, the fan duct part 850 may include a fan duct body part 851 that forms the exterior of the fan duct part 850 .

One end of the fan duct body 851 may be connected to the hot air supply unit 900 , and the other end may be opened to receive hot air from the hot air supply unit 900 .

Specifically, one end of the fan duct body 851 is coupled to the blowing fan housing 963 of the blowing unit 960 to receive hot air from the blowing fan housing 963 .

For example, the blower fan housing 963 may be connected to the hot air flow passage 920 so that hot air may be introduced, and the introduced hot air may be discharged through the open upper surface. One end of the fan duct body 851 may be coupled to the open upper surface of the blower fan housing 963 .

The fan duct body 851 may include a fan duct inlet 8511 coupled to the open upper surface of the blower fan housing 963 .

The fan duct inlet 8511 may be provided in a shape corresponding to the open upper part of the blower fan housing 963 . 18( c ), the fan duct inlet 8511 is shown in a rectangular shape.

In addition, the fan duct inlet 8511 may include a fan duct inlet hole 8511a provided to receive hot air from the blowing fan housing 963 , and the fan duct inlet hole 8511a is formed in the blowing fan housing 963 . It may be provided to correspond to the hole for discharging the hot air to the outside of the.

The fan duct inlet 8511 may be inserted into and coupled to the blower fan housing 963 . Accordingly, the fan duct inlet hole 8511a may receive hot air from the inside of the blowing fan housing 963 .

Since the fan duct inlet 8511 is inserted into and coupled to the blower fan housing 963, a strong coupling force can be provided, and the leakage of hot air to the outside between the fan duct inlet 8511 and the blower fan housing 963 is maximized. can be prevented.

On the other hand, the fan duct body part 851 may include a plurality of connection fastening parts 8511b provided on the outer circumferential surface to be coupled to the blowing fan housing 963 . The connection fastening part 8511b may be coupled to the blower fan housing 963 through a separate fastening member.

The connection fastening part 8511b may be provided on the outer peripheral surface of the fan duct body 851 adjacent to the fan duct inlet 8511 or at the fan duct inlet 8511 . Specifically, the connection fastening part 8511b may protrude from the outer peripheral surface of the fan duct body part 851 or the fan duct inlet part 8511, and a fastening hole through which the fastening member may pass may be provided at the end.

In addition, a plurality of connection fastening parts 8511b are provided along the circumference of the fan duct body part 851 so that separate fastening members pass therethrough to be coupled to the blower fan housing 963 . The connection and fastening part 8511b may provide a coupling force by which the entire fan duct part 850 can be strongly fixed to the blower fan housing 963 .

Meanwhile, referring to FIG. 18(b), the fan duct body 851 according to an embodiment of the present invention may include a fan duct support rib 854 that increases the structural rigidity of the entire fan duct part 850. can

The fan duct support rib 854 may be provided at the rear of the fan duct body 851 to be supported on the inlet recessed surface 4234 . That is, the fan duct support rib 854 may be provided to protrude from the rear surface of the fan duct body 851 .

The fan duct support rib 854 may be provided in a plate shape that protrudes toward the inlet recessed surface 4234 and extends along the longitudinal direction of the fan duct body 851, and may be provided in plurality and spaced apart from each other by a predetermined distance. . The plurality of fan duct support ribs 854 may be disposed to be spaced apart from each other in the width direction as they extend in the longitudinal direction of the fan duct body 851 . The fan duct support rib 854 may be entirely disposed on the rear surface of the fan duct body 851 to further increase the structural rigidity of the fan duct part 850 .

In addition, as described above, when the fan duct part 850 is coupled to the inflow recessed surface 4234 , the fan duct support rib 854 is in contact with the inflow recessed surface 4234 to increase the support force of the fan duct part 850 . can be further increased.

On the other hand, the fan duct body part 851 may include a support rib connection part 8541 for connecting between the plurality of fan duct support ribs 854, respectively. The support rib connection part 8541 may connect the plurality of fan duct support ribs 854 to each other so that the plurality of fan duct support ribs 854 integrally absorb vibration or shock.

For example, in FIG. 18B , the support rib connection part 8541 is illustrated to connect the lower ends of the plurality of fan duct support ribs 854 . However, this should not be construed as being limited thereto, and the position of the support rib connection part 8541 may be variously set.

In addition, the fan duct body part 851 may include a support coupling part 8543 for coupling the inflow recessed surface 4234 and the fan duct body part 851 .

The support coupling part 8543 is provided on the fan duct support rib 854 or the support rib connection part 8541 and may be provided to have a predetermined area, and a separate fastening member penetrates through it to be coupled to the inflow recessed surface 4234 can Accordingly, the support coupling part 8543 can strongly fix the fan duct part 850 to the inflow recessed surface 4234 .

For example, FIG. 18(b) shows that the support coupling part 8543 is provided at a portion where the fan duct support rib 854 and the support rib connection part 8541 are connected. However, the interpretation should not be limited thereto, and the position of the support coupling part 8543 may be set in various ways.

In addition, when the fan duct support rib 854 is in contact with the inlet recessed surface 4234, the space surrounded by the fan duct support rib 854 and the support rib connection part 8541 can be shielded from the outside, and the fan duct The main body 851 may include a support rib connection hole 8542 for communicating the inside of the fan duct support rib 854 and the outside of the fan duct support rib 854 . The support rib connection hole 8542 may be provided in the fan duct support rib 854 or the support rib connection part 8541 .

Meanwhile, FIG. 20 is a view showing a fan duct part and a duct part according to an embodiment of the present invention. Specifically, Fig. 20 (a) is a view showing the fan duct coupled to the duct unit from the upper side, Fig. 20 (b) is a view showing the fan duct unit coupled to the duct unit from the front.

Referring to FIG. 20A , the fan duct body 851 may include a fan duct outlet 8515 for guiding the hot air supplied from the hot air supply unit 900 to the flow unit 4231 .

As described above, one end of the fan duct body 851 is connected to the hot air supply unit 900 , the other end may be connected to the inlet unit 4233 or the flow unit 4231 , and the fan duct outlet unit 8515 is connected to the fan. The other end of the duct body portion 851 may be formed.

Specifically, the fan duct outlet 8515 may be disposed to be inserted into the first flow space V1 of the flow part 4231 or the second flow space V2 of the inlet part 4233 . Also, the fan duct outlet 8515 may be coupled to the flow concave surface 4232 of the flow unit 4231 and the inlet concave surface 4234 of the inlet 4233 .

The fan duct outlet 8515 is provided so that the rear surface is in contact with the inflow depression surface 4234 or the flow depression surface 4232 over a certain area, so that it can be strongly supported by the flow depression surface 4232 or the inflow depression surface 4234. have.

As described above, the flow outer peripheral portion (4231a) is opened between one side and the other side to which the inlet peripheral portion (4233a) is connected, so that the first flow space (V1) and the second flow space (V2) can communicate with each other, and the shape of an arc can be provided as

For convenience of description, one side of the flow outer peripheral portion 4231a will be described as a first flow connection portion 4235 , and the other side of the flow outer peripheral portion 4231a will be described as a second flow connection portion 4236 .

That is, the first flow connection portion 4235 may be located farther from the first side plate 1411 than the second flow connection portion 4236 , and may be located closer to the lower plate 147 of the cabinet 100 .

The fan duct outlet 8515 may be disposed on the boundary between the flow portion 4231 and the inlet portion 4233, and may be inserted into the boundary between the first flow space V1 and the second flow space V2, It may be in contact with the boundary between the flow depression surface 4232 and the inflow depression surface 4234 .

The fan duct outlet 8515 is disposed at the boundary between the flow part 4231 and the inlet part 4233 to directly guide the hot air flowing inside the fan duct part 850 to the flow part 4231, so that the flow distance can be minimized. The fan duct outlet 8515 can minimize the heat loss of the hot air by minimizing the flow distance of the hot air.

Meanwhile, the fan duct outlet 8515 may be provided to partition the flow portion 4231 and the inlet portion 4233 .

The fan duct outlet 8515 may be provided to extend along the circumference of the flow outer peripheral portion 4231a to form a part of the flow portion 4231 . The fan duct outlet 8515 may form a circle shape together with the flow outer peripheral portion 4231a to partition the flow portion 4231 and the inlet portion 4233 .

That is, the length of the fan duct outlet 8515 may be the same as the length between the first flow connection part 4235 and the second flow connection part 4236 . The fan duct outlet 8515 may be provided so that both side surfaces are in contact with the first flow connection part 4235 and the second flow connection part 4236 of the flow outer peripheral part 4231a described above.

Specifically, one side of the fan duct outlet 8515 may contact the second flow connection part 4236 and the other side may contact the first flow connection part 4235 .

Accordingly, the hot air introduced into the flow part 4231 through the fan duct outlet 8515 can be prevented from flowing to the inlet part 4233 as much as possible.

On the other hand, the fan duct part 850 according to an embodiment of the present invention further includes a fan duct shielding part 853 that divides the flow part 4231 and the inflow part 4233 together with the fan duct outlet part 8515. can do.

First, the fan duct outlet 8515 will be described. The fan duct outlet 8515 may have a width smaller than the open width of the flow outer peripheral portion 4231a. The reason that the fan duct outlet 8515 has a width smaller than the open width of the flow outer peripheral portion 4231a may be various.

For example, the blower 960 may be provided with a blower fan 961 therein, and a width greater than that of the fan duct outlet 8515 to sufficiently secure the flow rate of hot air, and the first of the inlet 4233 . As the blower 960 and the fan duct outlet 8515 are disposed together in the second flow space V2, the width of the fan duct outlet 8515 is the first flow connection portion 4235 of the flow outer peripheral portion 4231a and It may be provided to be smaller than the width between the second flow connection parts 4236 .

In addition, as described above, a part of one surface of the blower 960 is opened so that the fan duct inlet 8511 can be coupled, and if the open area of the fan duct outlet 8515 is too large, the hot air The efficiency of the hot air supplied to the flow part 4231 may be reduced, such as a rapid decrease in the flow rate. In addition to the above-mentioned reasons, there may be various reasons.

In one embodiment of the present invention, the fan duct outlet 8515 shields a part of the boundary between the flow part 4231 and the inlet part 4233, and the fan duct shielding part 853 is the fan duct outlet part ( 8515) can shield the unshielded part. That is, the fan duct shielding portion 853 may extend along the circumference of the flow outer peripheral portion 4231 in the fan duct outlet portion 8515 and may form a part of the flow portion 4231a.

Specifically, one side or the other side of the fan duct outlet 8515 may be spaced apart from the flow outer peripheral portion 4231a, and the fan duct shielding portion 853 is formed from one side or the other side of the fan duct outlet 8515. It may extend to the above-described first flow connection part 4235 or the second flow connection part 4236 . That is, the fan duct shielding part 853 may form a circle shape together with the fan duct outlet part 8515 and the flow outer peripheral part 4231 .

Meanwhile, the fan duct shielding part 853 may extend from one side of both side surfaces of the fan duct outlet part 8515 .

That is, any one of one side and the other side of the fan duct outlet 8515 may be provided in contact with the first flow connection part 4235 or the second flow connection part 4236 , and the fan duct shielding part 853 is the other one. may extend toward the first flow connection part 4235 or the second flow connection part 4236 in the .

One side of the fan duct outlet 8515 may mean a side provided closer to the first side plate 1411 among both sides.

For example, in FIG. 11(b), one side of the fan duct outlet 8515 is in contact with the second flow connection part 4236, and the fan duct shielding part 853 extends from the other side of the fan duct outlet 8515. Abutting the first flow connection portion 4235 is shown. However, the present invention is not limited thereto, and the other side of the fan duct outlet 8515 may be provided in contact with the first flow connection part 4235 , and the fan duct shielding part 853 is one of the fan duct outlet parts 8515 . It may extend from the side and be provided in contact with the first flow connection part 4235 .

The fan duct shielding part 853 may extend from only one side of both side surfaces of the fan duct outlet part 8515, so that it may be easier to manufacture. In addition, the fan duct part 850 may include a fan duct extension part 8513 connecting the fan duct outlet part 8515 and the fan duct inlet part 8511, and the fan duct extension part 8513 is a fan duct. As the outlet portion 8515 comes into contact with the first flow connection portion 4235 or the second flow connection portion 4236 , a portion may contact the inlet peripheral portion 4233a. That is, the fan duct portion 850 may have improved support as the fan duct extension portion 8513 comes into contact with the inlet peripheral portion 4233a.

On the other hand, referring to FIG. 20 (b), the fan duct unit 850 according to an embodiment of the present invention has a fan duct outlet ( 8515) may include a fan duct outlet hole 8515a.

The fan duct outlet hole 8515a may be opened from the fan duct outlet 8515 toward the first flow space V1. Specifically, the fan duct outlet hole 8515a may be formed through one surface of the fan duct outlet 8515 facing the flow inner peripheral portion 4231b.

As described above, the fan duct outlet 8515 may partition the first flow space V1 and the second flow space V2 alone or together with the fan duct shield 853, and the fan duct outlet hole ( 8515a) is directed toward the first flow space (V1) without directing the hot air passing through the fan duct outlet hole (8515a) toward the drum shielding part 221 of the drum rear surface 220 as it faces the flow inner peripheral part 4231a. can

In the fan duct outlet hole 8515a, the hot air passing through the fan duct outlet hole 8515a is diffused throughout the flow part 4231 and uniformly through the drum shielding part 221 facing the flow part 4231 drum 200 ) can be introduced into the interior. Furthermore, it is possible to prevent the hot air supplied to the flow unit 4231 from leaking to the outside through the fan duct unit 850 as much as possible.

Meanwhile, referring again to FIG. 5 , the hot air introduced through the fan duct part 850 may flow in one direction C1 and the other direction C2 within the flow part 4231 of the duct part 423 . One direction C1 may mean a clockwise direction. In addition, the other direction C2 may mean a counterclockwise direction.

Meanwhile, referring to FIG. 20B , the fan duct part 850 according to an embodiment of the present invention may include a fan duct coupling part 855 coupled to the rear plate 420 . The fan duct unit 850 may be coupled to the rear plate 420 through the fan duct coupling unit 855 .

The fan duct coupling part 855 may include a first fan duct coupling part 8553 provided in the fan duct shielding part 853 and a second fan duct coupling part 8555 provided in the fan duct outlet part 8515. can

That is, the first fan duct coupling portion 8553 may be provided on the front side of the fan duct outlet portion 8515 , and has a shape corresponding to the flow outer peripheral portion 4231a, so that one end portion is outside the fan duct outlet portion 8515 . can be further extended.

For example, the first fan duct coupling portion 8553 has one end extending further in the other direction C2 than the fan duct outlet portion 8515 and may be coupled with the front surface of the rear plate 420 from the outside of the flow outer peripheral portion 4231a. have.

In addition, the second fan duct coupling part 8555 may be provided on the front surface of the fan duct shielding part 853 , and has a shape corresponding to the flow outer peripheral part 4231a and the other end is outside the fan duct shielding part 853 . can be extended further. The second fan duct coupling portion 8555 has the other end extending further in one direction C1 than the fan duct shielding portion 853 and may be coupled to the front surface of the rear plate 420 from the outside of the flow outer peripheral portion 4231a.

The first fan duct coupling part 8553 and the second fan duct coupling part 8555 are coupled to the rear plate 420 through separate coupling members, respectively, so that a strong coupling force can be formed.

In addition, the first fan duct coupling part 8553 may be provided to be connected to the second fan duct coupling part 8555 . That is, the fan duct coupling portion 855 may extend from one end to the other end, and the length of the arc formed from one end to the other end is the length of the arc formed by the fan duct shielding portion 853 and the fan duct outlet portion 8515 . A larger one may be provided.

Meanwhile, the rear plate 420 may include a fan duct receiving part 4271 coupled to the fan duct coupling part 855 .

The fan duct receiving part 4271 may be coupled to both ends of the fan duct coupling part 855 , and the first fan duct receiving part 4271a coupled to the first fan duct coupling part 8553 may be coupled to the second fan duct. It may include a second fan duct accommodating portion 4271b coupled to the portion 8555.

The first fan duct accommodating portion 4271a may be provided by being depressed in a shape corresponding to a portion protruding further in one direction C1 than the fan duct shielding portion 853 of the first fan duct coupling portion 8553 .

In addition, the second fan duct accommodating portion 4271b may be provided by being depressed in a shape corresponding to a portion that protrudes further in the other direction C2 than the fan duct outlet 8515 of the second fan duct coupling portion 8555. have.

Both ends of the fan duct coupling part 855 are accommodated in the fan duct accommodating part 4271 to receive strong support, and the fan duct part 850 as a whole may be more strongly fixed by the fan duct accommodating part 4271. .

Meanwhile, the fan duct part 850 according to an embodiment of the present invention may include a coupling guider 8551 provided to support the first sealing part 451 .

As described above, the fan duct outlet 8515 may form a part of the outer periphery of the flow part 4231, and the first sealing part 451 is provided in an annular shape and includes the fan duct outlet 8515. It may be provided along the outer periphery of the flow portion (4231).

The coupling guider 8551 may include a first coupling guider 8551a provided in front of the fan duct outlet 8515 and a second coupling guider 8551b provided in front of the fan duct shielding part 853. .

The first fan duct coupling part 8553 may be provided in front of the fan duct outlet 8515 , and the first coupling guider 8551a may be provided in front of the first fan duct coupling part 8553 .

The first coupling guider 8551a may be provided with a plurality of ribs that protrude from the front surface of the first fan duct coupling part 8553 and extend to correspond to the circumference of the first sealing part 451 .

When the first coupling guider 8551a is provided with a plurality of ribs, the plurality of ribs may be spaced apart and a first sealing part 451 may be disposed therebetween. The plurality of ribs may be in contact with the inner peripheral surface and the outer peripheral surface of the first sealing part 451 , respectively, to support the first sealing part 451 . In addition, the plurality of ribs may extend over the entire first fan duct coupling part 8553 along the circumferential direction of the flow part 4231 , and the area in contact with the first sealing part 451 is increased to increase the first sealing area. The part 451 may be supported more strongly.

In addition, the second fan duct coupling part 8555 may be provided in front of the fan duct shielding part 853, and the second coupling guider 8551b may be provided in front of the second fan duct coupling part 8555. have.

The second coupling guider 8551b may be provided with a plurality of ribs that protrude from the front surface of the second fan duct coupling part 8555 and extend to correspond to the circumference of the first sealing part 451 .

When the second coupling guider 8551b is provided with a plurality of ribs, the plurality of ribs may be spaced apart and a first sealing part 451 may be disposed therebetween. The plurality of ribs may be in contact with the inner peripheral surface and the outer peripheral surface of the first sealing part 451 , respectively, to support the first sealing part 451 . In addition, the plurality of ribs may extend over the entire first fan duct coupling part 8553 along the circumferential direction of the flow part 4231 , and the area in contact with the first sealing part 451 is increased to increase the first sealing area. The part 451 may be supported more strongly.

The first coupling guider 8551a may be connected to the second coupling guider 8551b to support the first sealing part 451 together. The first coupling guider 8551a and the second coupling guider 8551b may be connected to support the first sealing part 451 with a larger area.

On the other hand, referring to FIG. 20( a ), the fan duct coupling part 855 according to an embodiment of the present invention is the center of the flow part 4231 rather than the fan duct outlet part 8515 and the fan duct shield part 853 . may be located closer to

For example, the fan duct coupling part 855 may protrude more toward the center of the flow part 4231 than the fan duct outlet part 8515 and the fan duct shield part 853 . That is, the fan duct coupling part 855 has an increased cross-sectional area than the fan duct outflow part 8515 and the fan duct shielding part 853, so that the coupling guider 8551 is easily provided on the front surface of the fan duct coupling part 855. can

Meanwhile, referring to FIG. 18(d) , the fan duct part 850 according to an embodiment of the present invention may be provided with a plurality of divided bodies. That is, the fan duct unit 850 may be provided such that a plurality of divided bodies are coupled to form a flow path therein.

The fan duct part 850 may be manufactured as one piece, but as the shape is complicated and a space in which hot air flows is formed, a plurality of divided parts may be manufactured and combined for manufacturing convenience. Various methods such as screw coupling, rivet coupling, fitting coupling, bonding and welding may be used as a coupling method of the plurality of divisions.

Specifically, the fan duct unit 850 may include a first fan duct forming unit 8501 and a second fan duct forming unit 8502 .

The first fan duct forming part 8501 may form a partial shape of the fan duct part 850, and the second fan duct forming part 8502 may form the remaining shape of the fan duct part 850, If the first fan duct forming part 8501 and the second fan duct forming part 8502 are combined, the shape of the fan duct part 850 may be completed.

For example, the first fan duct forming part 8501 faces the rear plate 420 , a part of the above-described fan duct inlet part 8511 , a part of the fan duct body part 851 , and a fan duct outlet part 8513 . A part of and a part of the fan duct shielding part 853 may be formed.

In addition, the second fan duct forming part 8502 faces the drum rear surface 220, a part of the above-described fan duct inlet part 8511, a part of the fan duct body part 851, and a fan duct outlet part 8513. A part, a part of the fan duct shielding part 853, the fan duct coupling part 855 and the coupling guider 8551 may be formed.

That is, when viewed from the side, the first fan duct forming part 8501 and the second fan duct forming part 8502 move from the upper plate 145 to the lower plate 147 at the center of the fan duct part 850 . It may be formed by dividing in the direction. The first fan duct forming part 8501 may form a rear part of the fan duct part 850 , and the second fan duct forming part 8502 may form a front part of the fan duct part 850 .

However, the shape of dividing the fan duct part 850 may be variously set according to the overall shape of the fan duct part 850 and manufacturing conditions.

Meanwhile, the first fan duct forming part 8501 may be coupled to the second fan duct forming part 8502 by a separate coupling part.

That is, the first fan duct forming part 8501 may include a first fan duct coupling part 8501a provided on one surface of the first fan duct forming part 8501 , and the second fan duct forming part 8502 may be included. may include a second fan duct coupling part 8502a provided on one surface of the second fan duct forming part 8502, and the first fan duct coupling part 8501a and the second fan duct coupling part 8502a are Either one may be fastened to the other.

As described above, the first fan duct forming part 8501 and the second fan duct forming part 8503 may form the fan duct body part 851 together, and the first fan duct coupling part 8501a and the second fan duct forming part 851a may be formed together. The two fan duct coupling portions 8502a may be provided on both sides of the fan duct body portion 851 .

Hereinafter, for convenience of description, a structure in which the second fan duct coupling part 8502a is inserted into and coupled to the first fan duct coupling part 8501a will be described. The structure to be inserted and coupled may be a kind of hook coupling.

However, this is not interpreted as being limited thereto, and the first fan duct coupling part 8501a may be inserted into and coupled to the second fan duct coupling part 8502a.

The first fan duct coupling part 8501a may protrude from both sides of the first fan duct forming part 8501 and may extend forward toward the second fan duct coupling part 8502a, and a fan duct coupling hole ( 8501c) may be provided.

The second fan duct coupling part 8502a protrudes from both sides of the second fan duct forming part 8502 and may be provided in a shape corresponding to the fan duct coupling hole 8501c.

The second fan duct coupling part 8502a may be inserted and coupled to the fan duct coupling hole 8501c. In addition, the first fan duct coupling part 8501a and the second fan duct coupling part 8502a are provided in plurality, so that the coupling force and supporting force of the first fan duct forming part 8501 and the second fan duct forming part 8502 are increased. can be increased

Meanwhile, the first fan duct forming part 8501 and the second fan duct forming part 8502 according to an embodiment of the present invention may include support parts capable of supporting each other.

The first fan duct forming part 8501 may form a space inside the fan duct part 850 together with the second fan duct forming part 8502 . For example, the fan duct inlet 8511 , the fan duct body 851 , and the fan duct outlet 8515 may all have empty spaces formed therein, and the fan duct unit 850 may be formed in a coupling process or a manufacturing process. If an external force is applied, it may be damaged or unable to maintain its shape.

The support portion may provide support for the first fan duct forming unit 8501 and the second fan duct forming unit 8502 to maintain the shape of the fan duct unit 850 .

The support part may include a first fan duct support part 8501b provided in the first fan duct forming part 8501 and a second fan duct support part 8502b provided in the second fan duct forming part 8502 .

The first fan duct support part 8501b and the second fan duct support part 8502b are provided to protrude from the first fan duct forming part 8501 and the second fan duct forming part 8502, respectively, so that their ends are in contact with the first fan Supporting force may be provided to the duct forming unit 8501 and the second fan duct forming unit 8502 .

For example, the first fan duct support part 8501b and the second fan duct support part 8502b may be provided inside the fan duct outlet 8515 .

Specifically, the first fan duct support part 8501b protrudes toward the second fan duct support part 8502 from one surface of the first fan duct forming part 8501 forming the fan duct outlet part 8515, and the second fan The duct support part 8502b may be provided to protrude toward the first fan duct support part 8502 from one surface of the second fan duct forming part 8502 forming the fan duct outlet part 8515 . The ends of the first fan duct support part 8501b and the second fan duct support part 8502b may be in contact with each other inside the fan duct outlet 8515 .

In addition, the first fan duct support part 8501b and the second fan duct support part 8502b have separate fastening members passing through them to fix the first fan duct forming part 8501 and the second fan duct forming part 8502. can

Furthermore, the separate fastening member passes through the rear plate 420 together with the first fan duct forming part 8501 and the second fan duct forming part 8502, so that the first fan duct forming part 8501 and the second fan duct forming part 8501 are formed. The coupling force between the fan duct forming part 8502 and the coupling force between the rear plate 420 and the fan duct part 850 may also be increased.

Meanwhile, referring to FIGS. 18A and 19 , the fan duct part 850 according to an embodiment of the present invention may be provided to prevent contact with the drum 200 .

For efficient space utilization inside the cabinet 100 , the fan duct part 850 may be inclined to prevent contact with the drum 200 .

As described above, in the fan duct body 851, the fan duct inlet 8511 forming one end is connected to the blower 960 of the hot air supply 900, and the fan duct outlet 8515 forming the other end. may be connected to the duct portion 423 of the rear plate 420 .

The blower 960 may be disposed on the lower side of the drum 200 , and the duct part 423 may be disposed to face the drum 200 at the rear of the drum 200 , and thus a fan duct connecting them The main body 851 may extend from the fan duct inlet 8511 to the fan duct outlet 8515 .

For example, referring to FIG. 19 , the fan duct body 851 may extend upwardly and obliquely from the fan duct inlet 8511 to the fan duct outlet 8515 .

If the fan duct part 850 is extended upwardly inclined to the rear, interference with the drum can be reduced compared to the case where the fan duct part 850 is extended vertically upward, and thus the design freedom of the drum can be improved. For example, the drum 200 may extend further to the rear, and may be provided with a larger size to increase the storage capacity of clothes.

On the other hand, according to an embodiment of the present invention, the inner flow portion (4231b) may be provided to guide the hot air into the flow portion (4231).

As described above, the hot air introduced through the fan duct part 850 may flow in one direction C1 and the other direction C2 within the flow part 4231 of the duct part 423 . One direction C1 may mean a clockwise direction, and the other direction C2 may mean a counterclockwise direction.

The flow inner peripheral portion 4231b may be provided such that a portion facing the fan duct outlet 8515 protrudes toward the fan duct outlet 8515 . That is, the flow inner peripheral portion (4231b) can prevent the concentration of hot air in any one of the one direction (C1) or the other direction (C2), so that the hot air is supplied to the inside of the drum 200 in a balanced manner.

6(b) and 20(b), specifically, the flow inner peripheral portion 4231b may include a flow inner peripheral body portion 4231d and a flow inner peripheral guide portion 4231e. The flow inner peripheral body portion 4231d may be provided in a circular shape, and the flow inner peripheral guide portion 4231e may protrude from the flow inner peripheral body portion 4231d toward the fan duct outlet 8515.

That is, the flow inner peripheral portion (4231b) may be provided in a water droplet shape or streamline shape as a whole. In other words, the inner flow guide portion 4231e may extend toward the fan duct outlet 8515 by overlapping arcs, and the length of the arc may be reduced toward the fan duct outlet 8515 .

The hot air discharged from the fan duct outlet 8515 is divided in one direction (C1) and the other direction (C2) by the flow inner circumferential guide portion (4231e), so that the hot air can be guided in a balanced way throughout the first flow space (V1). .

On the other hand, referring back to FIGS. 4 and 6 (b), the flow part 4231 according to an embodiment of the present invention includes a flow guide 4231c for more efficiently guiding the hot air to the drum rear surface 220. can do.

The flow guide 4231c may be provided to protrude forward from the flow recessed surface 4232 . The flow guide 4231c may extend to cross the direction in which the hot air of the first flow space V1 flows.

The flow guide 4231c may extend to connect between the flow outer peripheral portion 4231a and the flow inner peripheral portion 4231b. That is, the flow guide 4231c changes the flow direction of the hot air introduced into the first flow space V1 toward the drum rear surface 220 and reduces the flow velocity of the hot air so that the hot air flows into the drum 200 efficiently. can do.

The flow guide 4231c may be provided with different protrusion heights along the circumferential direction of the flow part 4231 from the flow depression surface 4232 . The flow guide 4231c may be inclined in the circumferential direction.

That is, the flow guider 4231c is an inclined section in which the height protruding toward the front increases as the distance from the fan duct outlet 8515 along the circumferential direction of the flow portion 4231, the circumferential direction of the flow portion 4231 Accordingly, as the distance from the fan duct outlet 8515 increases, the height protruding toward the front is a certain section and the height protruding toward the front as the distance from the fan duct outlet 8515 along the circumferential direction of the flow portion 4231 is constant. It may include a decreasing period in which the is decreased.

The flow guide 4231c may be provided such that the protrusion height is changed as a whole, and the flow velocity and the flow direction of the hot air flowing through the first flow space V1 are changed by the flow guider 4231c, so that the rear surface of the drum ( 220) can be guided.

For example, the flow guide 4231c may extend to further protrude forward from the flow concave surface 4232 along one direction C1 with respect to the fan duct part 850 . Also, the flow guide 4231c may protrude to a predetermined height to prevent contact with the drum rear surface 220 and then extend to maintain a predetermined height along one direction C1. In addition, the flow guide 4231c may extend to maintain a predetermined height and extend to decrease the protrusion height again along one direction C1.

On the other hand, referring again to FIGS. 4 and 6 (b), the flow guides 4231c are provided in plurality and may be provided to be spaced apart along the circumferential direction. 4 shows a flow part having two flow guides 4231c according to an embodiment of the present invention.

One flow guide 4231c may be provided to be positioned furthest from the fan duct part 850 . That is, one flow guider 4231c may be provided on the opposite side of the fan duct part 850 with respect to the center of the flow part 4231 .

The other flow guider 4231c may be provided between the fan duct part 850 and the one flow guider 4231c, and may be disposed along any one of the one direction C1 and the other direction C2.

The number and arrangement of the flow guides 4231c are not limited thereto, and may be determined in consideration of the volume of the first flow space V1, the size of the drum rear surface 220, the speed of hot air, and the like.

Although representative embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications are possible within the limits without departing from the scope of the present invention with respect to the above-described embodiments. . Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined by the claims described below as well as the claims and equivalents.

100: cabinet 200: drum
220: drum rear 221: drum shield
223: drum receiving part 410: front plate
420: rear plate 421: rear tank support hole
423: duct part 4231: flow part
4231a: flow outer periphery 4231b: flow inner periphery
4231c: flow addition ether 4233: inlet
4234: inlet recessed surface 425: mounting portion
4251: mounting receiving portion 4253: mounting circumference
4255: mounting hole 4257: mounting connection
427: rear cover coupling portion 427a: rear coupling peripheral portion
427b: floating cover coupling portion 427c: floating cover extension portion
4275: water storage connection hole 4277: water collection connection hole
430: rear cover 431: duct cover
433: coupling part cover 435: driving part rib
4351: rib outer peripheral portion 4353: rib inner peripheral portion
4355: rib slit portion 436: cover receiving portion
4361: heat dissipation hole 4363: cover recessed part
437: cover through portion 438: cover opening and closing portion
450: sealing portion 451: first sealing portion
452: second sealing part M: driving part
500: motor 600: reducer
850: fan duct part 851: fan duct body part
853: fan duct shielding part 855: fan duct coupling part
8551: coupling guider 891: drain pipe
8911: collection drain pipe 8913: drain exposed pipe
8915: water storage drain pipe 893: return pipe
8931: collection return pipe 8933: return exposed pipe
8935: water return pipe 895: external discharge pipe
900: hot air supply unit 920: hot air passage unit
950: heat pump 961: blowing fan
963: blowing fan housing 965: blowing fan driving part

Claims (20)

a cabinet having an inlet through which clothes are put in the front;
a drum rotatably provided inside the cabinet and providing a space in which the clothes are accommodated;
a hot air supply unit disposed outside the drum to supply hot air into the drum;
a rear plate that forms a rear surface of the cabinet, is recessed to the rear, has a front surface open, and includes a duct part for guiding the hot air supplied from the hot air supply unit into the drum;
a driving unit coupled to the rear of the rear plate and provided to be surrounded by the duct unit and providing power to rotate the drum; and
Includes; a rear cover provided to cover the rear of the rear plate;
At least a portion of the rear cover is provided in a shape corresponding to the duct part to cover the duct part and the driving part, and a part of the rear surface of the rear plate excluding the duct part and the driving part is exposed to the outside. According to claim 1,
The duct part,
and a flow part facing the rear surface of the drum and forming a space in which the hot air flows between the drum and the rear surface of the drum.
The drum is
and a drum inlet provided on the rear surface of the drum and receiving the hot air from the flow unit.
The rear surface of the drum protrudes toward the flow part to shield the open front surface of the flow part, and the hot air flowing inside the flow part flows through the drum inlet. 3. The method of claim 2,
It further includes; a fan duct unit for guiding the hot air supplied from the hot air supply unit to the duct unit by connecting the hot air supply unit and the duct unit,
The duct part,
and an inlet portion extending from the flow portion toward the hot air supply portion and into which at least a portion of the fan duct portion is inserted. 4. The method of claim 3,
The rear plate is
and a mounting part provided to be surrounded by the moving part and coupled to the driving part;
The rear cover is
and a driving part rib that protrudes from one surface of the rear cover toward the rear plate, faces the mounting part from the inside of the flow part, and surrounds the driving part. 5. The method of claim 4,
The mounting part,
a mounting receiving unit provided in the center of the mounting unit and coupled to the driving unit; and
and a mounting perimeter that surrounds the mounting accommodating part and is connected to the moving part.
and the mounting accommodating part protrudes forward from the mounting circumferential part, and the driving part rib faces the mounting circumferential part and surrounds the driving part. 6. The method of claim 5,
The driving part rib has a heat dissipation space formed therein, the rear surface is opened to expose the heat dissipation space to the outside, and the protruding end is in contact with the mounting circumference,
The driving unit is spaced apart from the front surfaces of the driving unit rib and the rear cover. 7. The method of claim 6,
The driving part rib,
a rib inner peripheral portion that surrounds the heat dissipation space from the inside and faces the driving unit; and
and a rib slit part formed through the inner peripheral part of the rib, extending in a protruding direction of the driving part rib, and communicating the mounting part and the heat dissipation space. 8. The method of claim 7,
The rear cover is
and a cover accommodating part facing the driving part and connected to the inner peripheral part of the rib and including a plurality of heat dissipation holes for communicating the mounting part with the outside. 9. The method of claim 8,
The cover receiving part,
a cover recessed portion positioned in the center of the cover receiving portion and recessed away from the driving portion; and
and a cover heat dissipating part surrounding the cover recessed part and having the plurality of heat dissipating holes radially disposed. 10. The method of claim 9,
The driving unit includes a driving rotation shaft coupled to the rear surface of the drum through the mounting receiving unit,
and the cover recessed portion is provided at a position corresponding to the driving rotation shaft. According to claim 1,
The rear plate is
It further includes; a rear cover coupling part that surrounds the duct part from the outside of the upper duct part and is recessed to the rear;
The duct part is recessed further rearward than the rear cover coupling part, and the rear cover is inserted into and coupled to the rear cover coupling part. 12. The method of claim 11,
The rear cover is
a duct cover provided to cover the duct part; and
and a coupling part cover extending from the duct cover and provided to cover the rear cover coupling part;
and the coupling part cover is coupled to a rear surface of the rear plate, and an inner circumferential surface thereof faces an outer circumferential surface of the rear cover coupling part. 13. The method of claim 12,
The hot air supply unit,
a blowing fan disposed inside the hot air supply unit and circulating the hot air into the drum and the hot air supply unit;
a blowing fan housing in which the blowing fan is provided and the hot air flows; and
and a blowing fan driving unit coupled to the blowing fan at the rear of the blowing fan housing and providing power to the blowing fan;
The duct part accommodates the blower fan driving part, and the rear cover coupling part accommodates at least a portion of the blower fan housing. 14. The method of claim 13,
The blower fan housing is disposed on a lower surface of the cabinet,
The rear cover coupling portion is coupled to the lower surface of the cabinet by opening the lower end facing the blower fan housing,
The coupling part cover has a lower end open to correspond to the rear cover coupling part and is coupled to the rear cover coupling part. 12. The method of claim 11,
a water vapor removal unit provided in the hot air supply unit and provided to remove water vapor from the hot air discharged from the drum;
a water collecting unit provided inside the cabinet and storing the condensed water formed in the water vapor removing unit;
a water storage unit provided in the cabinet and receiving the condensed water from the water collecting unit and storing the condensed water; and
It further includes; a drain unit including a drain pipe connecting the water collecting unit and the water storage unit to provide a path through which the condensed water of the water collecting unit flows to the water storage unit;
The drain pipe includes a drain exposed pipe disposed outside the rear plate,
Both ends of the drain exposure pipe pass through the rear plate to be connected to the water collecting unit and the water storage unit. 16. The method of claim 15,
and the drain exposure pipe extends along an outer circumferential surface of the duct part. 17. The method of claim 16,
and the rear cover covers the drain pipe to shield the drain pipe from the outside. 18. The method of claim 17,
The drain pipe is
Containing a;
The rear cover is
and a cover penetrating part through which one side of the rear cover penetrates and exposing the external discharge pipe to the outside. 19. The method of claim 18,
The rear cover is
and a cover opening and closing part provided to open and close the cover through part to selectively expose the external discharge pipe to the outside. 20. The method of claim 19,
The cover opening and closing part,
an opening/closing body portion provided in a shape corresponding to the cover through portion;
an opening/closing hinge unit rotatably connecting the opening/closing body to the rear cover; and
and an opening and closing hook protruding from the end of the opening and closing body part;
The rear plate is
It further includes; an opening/closing hook receiving part located outside the rear cover coupling part and provided through the rear surface of the rear plate;
The opening/closing hook part is inserted into the opening/closing hook receiving part to be coupled thereto.

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