WO2023158170A1 - Combined washer and dryer - Google Patents

Abstract

Disclosed is a combined washer and dryer. The combined washer and dryer disclosed herein comprises: a cabinet having a laundry inlet port formed in the front surface thereof; a tub which is disposed in the cabinet and is provided with a front opening connected to the laundry inlet port and a rear opening; a drum disposed in the tub to be rotatable; and a drying apparatus which is disposed on the upper portion of the tub and supplies hot wind toward the front opening. The drying apparatus comprises: a heat exchanger comprising an evaporator and a condenser; a compressor which is disposed behind the heat exchanger and compresses and circulates a refrigerant of the heat exchanger; an inlet duct which is disposed at one side of the heat exchanger, and guides the air flowing in from the rear portion toward the heat exchanger; a supply duct which is disposed at the other side of the heat exchanger and guides the air passing through the heat exchanger to be discharged to the front portion; and a blower fan supplying the air discharged from the supply duct to the front opening. In addition, the combined washer and dryer may further comprise a ventilation opening provided in the rear portion of the cabinet, which corresponds to the position where the drying apparatus is arranged, and a cooling fan which is disposed in the ventilation opening and supplies the external air to the compressor.

Description

Dryer and washing machine

The present disclosure relates to a washing machine, and more particularly, to a washing machine for washing and drying laundry.

In general, a washing machine for washing laundry and a dryer for drying laundry are formed as separate devices.

Therefore, the consumer uses a washing machine to wash laundry and then uses a dryer to dry laundry.

However, when the washing machine and the dryer are formed as separate devices, the user has to wait for the washing to be completed and then move the washed laundry to the dryer, causing inconvenience.

In order to solve this inconvenience, a washing machine with a drying function has been developed and used.

However, the dryer combined washing machine according to the prior art has a problem in that its drying performance is relatively low compared to a dedicated dryer having only a drying function.

The present disclosure was devised in view of the above problems, and an object of the present disclosure is to provide a washing machine with drying performance comparable to that of a dedicated dryer.

A combined dryer washing machine according to an example of the present disclosure includes a cabinet provided with a laundry inlet on the front side, a tub disposed inside the cabinet and provided with a front opening and a rear opening connected to the laundry inlet, and rotating inside the tub. a drum disposed above the tub, and a drying device for supplying hot air toward the front opening, wherein the drying device includes a heat exchange unit including an evaporator and a condenser, and a heat exchange unit disposed behind the heat exchange unit. A compressor for compressing and circulating the refrigerant of the heat exchange unit, an inlet duct disposed on one side of the heat exchange unit and guiding air introduced from the rear toward the heat exchange unit, disposed on the other side of the heat exchange unit, and passing through the heat exchange unit. a supply duct for guiding air to be discharged forward; and a blower fan for supplying air discharged from the supply duct to the front opening, wherein the drying/combining washing machine includes a part of the cabinet corresponding to a position where the drying device is disposed. The cooling fan may further include a ventilation hole provided at a rear side and a cooling fan disposed in the ventilation hole and supplying external air to the compressor.

The cooling fan may further include a blowing guide disposed in front of the cooling fan and guiding external air supplied by the cooling fan toward the compressor.

In this case, the blowing guide may be formed of a hollow duct with both ends open, one end disposed in front of the cooling fan, and the other end facing the side of the compressor.

Meanwhile, the ventilation hole may be provided at a rear side of the cabinet corresponding to a position where the compressor is disposed such that a direction of air supplied by the cooling fan is directed toward the compressor.

Meanwhile, the cooling fan may have a rotating shaft disposed toward the compressor such that air supplied by the cooling fan faces toward the compressor.

Meanwhile, the washing machine for drying and drying may further include a heat sink disposed on a side surface of the compressor to dissipate heat from the compressor.

In this case, the heat dissipation plate may be disposed in a direction toward the cooling fan from the side of the compressor.

1 is a cross-sectional view illustrating a washing machine for drying according to an example of the present disclosure.

2 is a diagram conceptually illustrating a drying device of a washing machine for drying according to an example of the present disclosure.

3 is a perspective view showing a main configuration of a washing machine for drying according to an example of the present disclosure.

4 is a view showing a cabinet of a drying/combining washing machine according to an example of the present disclosure.

5 is a front view showing a main configuration of a washing machine for drying according to an example of the present disclosure.

6 is a rear view illustrating a main configuration of a washing machine for drying and drying according to an example of the present disclosure.

7 is a partial perspective view illustrating a blowing duct and a supply duct of the washing machine for drying and drying according to an example of the present disclosure.

8A is a plan view illustrating a main configuration of a drying/combining washing machine according to an example of the present disclosure.

8B to 8D are plan views illustrating main configurations of a washing machine for drying according to various examples of the present disclosure.

9 is a perspective view illustrating a state in which the lint filter box of the washing machine for drying and washing according to an example of the present disclosure is drawn out.

10 is a perspective view illustrating a lint filter box of a washing machine for drying and washing according to an example of the present disclosure.

11 is a cross-sectional perspective view illustrating a main configuration of a washing machine for drying and drying according to an example of the present disclosure.

12 is a view illustrating a rear plate of a drum of a washing machine for drying and drying according to an example of the present disclosure.

13 is a partial perspective view illustrating a discharge duct of the drying/combining washing machine according to an example of the present disclosure.

14 is a cross-sectional view illustrating a state of airflow passing through a drum of a washing machine for drying and drying according to an example of the present disclosure.

15 is a graph showing reduction in airflow leakage from the side of a drum by a labyrinth seal of a washing machine for drying and washing according to an example of the present disclosure.

In this specification, various embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope to the specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for like elements.

In describing the present disclosure, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present disclosure, a detailed description thereof will be omitted.

In addition, the following embodiments may be modified in many different forms, and the scope of the technical idea of the present disclosure is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the spirit of the disclosure to those skilled in the art.

Terms used in this disclosure are only used to describe specific embodiments, and are not intended to limit the scope of rights. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Terms used in the embodiments of the present disclosure may be interpreted as meanings commonly known to those skilled in the art unless otherwise defined.

In the present disclosure, expressions such as “has,” “can have,” “includes,” or “can include” indicate the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

Expressions such as "first," "second," "first," or "second," used in the present disclosure may modify various elements regardless of order and/or importance, and may refer to one element as It is used only to distinguish it from other components and does not limit the corresponding components.

In addition, terms such as 'front end', 'rear end', 'upper end', 'lower end', 'upper end', and 'lower end' used in the present disclosure are defined based on drawings, and by these terms, the shape and Location is not limited.

Meanwhile, various elements and regions in the drawings are schematically drawn. Therefore, the technical spirit of the present disclosure is not limited by the relative size or spacing drawn in the accompanying drawings.

Hereinafter, various embodiments of the present disclosure will be described in detail using the accompanying drawings.

1 is a cross-sectional view illustrating a washing machine for drying according to an example of the present disclosure.

Referring to FIG. 1 , a combined drying washing machine 1 according to an example of the present disclosure may include a cabinet 10, a tub 20, a drum 30, and a drying device 40. there is.

The cabinet 10 forms the exterior of the washing machine 1 and is formed in a substantially rectangular parallelepiped shape. The cabinet 10 includes a front cover 11, a rear cover 12, a left cover 13 (see FIG. 2), a right cover 14 (see FIG. 2), an upper cover 15, and a lower cover 16 ) may be included.

At the front side of the cabinet 10, a laundry inlet 18 through which laundry can be put in and taken out of the cabinet 10 is provided. That is, the laundry inlet 18 is provided on the front cover 11 of the main body. A door 17 is installed in the laundry inlet 18 to be opened and closed.

A control panel 19 capable of controlling the washing machine 1 may be provided above the front cover 11 of the cabinet 10 . The control panel 19 may include a plurality of buttons for controlling the washing machine 1, a display for showing information related to the washing machine 1 and a washing process, and a processor for controlling the washing machine.

The tub 20 is installed inside the cabinet 10 of the washing machine 1 and has a hollow cylindrical shape with a front opening toward the laundry inlet 18 of the front cover 11 . The front opening of the tub 20 is connected to the laundry inlet 18 . The tub 20 includes a rear opening provided on a rear surface.

The tub 20 may accommodate a predetermined amount of wash water required for washing. The tub 20 is supported and fixed to the inner surface of the cabinet 10 by a tension spring, an oil damper, or the like.

A diaphragm 25 may be installed between the tub 20 and the front cover 11 of the cabinet 10 . The diaphragm 25 is formed in a substantially annular shape. One end of the diaphragm 25 is fixed to the front surface 21 of the tub 20 provided with a front opening, and the other end of the diaphragm 25 is attached to the inner circumference of the laundry input port 18 of the front cover 11 of the cabinet 10. It is fixed. That is, the diaphragm 25 connects the laundry inlet 18 of the cabinet 10 and the front opening of the tub 20 .

The diaphragm 25 prevents wash water accommodated in the tub 20 from leaking out of the tub 20 and may form a passage through which laundry passes. In addition, the diaphragm 25 may block transmission of vibration generated when the drum 30 rotates to the front cover 11 of the cabinet 10 through the tub 20 .

The drum 30 is rotatably installed inside the tub 20 and has a substantially hollow cylindrical shape. A drum opening 31a corresponding to the laundry input port 18 of the washing machine cabinet 10 is provided on the front surface 31 of the drum 30, and a rear plate 32 is provided on the rear end of the drum 30.

The side surface 33 (see FIG. 11) of the drum 30 is provided with a plurality of through holes 33a through which wash water can pass. A plurality of through holes 32a may also be provided in the back plate 32 of the drum 30 . Therefore, the air inside the drum passes between the drum 30 and the tub 20 through the plurality of through holes 33a formed on the side surface 33 of the drum 30 and the plurality of through holes 32a formed on the rear plate 32. can be discharged into the space of

In addition, a plurality of lifts 34 capable of lifting laundry are provided on the inner circumferential surface of the drum 30 . The drum 30 may be rotated about a central axis by a driving device including a driving motor 35 installed on the rear plate 32 .

A water supply device for supplying water to the tub 20 is provided at an upper portion of the tub 20 , and a drainage device for draining water from the tub 20 to the outside is disposed at a lower portion of the tub 20 .

The water supply device may include a water supply pipe connected to an external water supply source and a water supply valve opening and closing the water supply pipe. One end of the water supply pipe may be connected to the diaphragm 25 . A detergent suction unit may be provided in the water supply pipe.

The drainage device is formed to discharge wash water accommodated in the tub 20 to the outside of the washing machine 1 . The drainage device is installed below the tub 20 and may include a pump and a drain pipe. When the pump operates, wash water accommodated in the tub 20 is discharged to the outside of the washing machine 1 through the drain pipe.

A drying device 40 may be installed above the tub 20 to dry laundry washed by the rotation of the drum 30 . The drying device 40 heats and dries the air discharged from the tub 20 to create hot air and circulates the hot air into the tub 20 to dry laundry located inside the drum 30. do.

Hereinafter, with reference to FIG. 2 , a drying device 40 of a combined drying washing machine 1 according to an example of the present disclosure will be described.

2 is a diagram conceptually illustrating a drying device 40 of a washing machine 1 for drying according to an example of the present disclosure.

Referring to FIG. 2 , the drying apparatus 40 includes a circulation passage 41 connecting the front and rear sides of the tub 20, a blowing fan 61 generating air current circulating through the circulation passage 41, and a drum 30 ) It may include a heat exchange unit 70 that removes moisture contained in the airflow that has passed through and heats it to create a high-temperature dry airflow, that is, hot air.

The circulation passage 41 may include an upper passage 50 provided on the upper side of the tub 20 and a rear passage 55 provided on the rear surface of the tub 20 .

The upper passage 50 may be formed to connect the rear passage 55 and the front of the tub 20 . The upper passage 50 may be formed in a substantially L-shape. The upper flow path 50 may be formed such that the introduced airflow is bent in a substantially right angle direction, moved in a straight line by a predetermined distance, and then bent again in a right angle direction to be discharged to the outside toward the front of the cabinet 10 .

The upper passage 50 may be installed adjacent to the front cover 11 of the cabinet 10 . Therefore, a space 44 in which the compressor 71 of the heat exchange unit 70 can be installed may be provided between the rear cover 12 of the cabinet 10 and the upper passage 50 above the tub 20 . .

In the case of the example shown in FIG. 2 , the upper passage 50 is installed adjacent to the front cover 11 . Accordingly, a space 44 in which the compressor 71 is installed may be provided between the rear cover 12 and the upper passage 50 .

The inlet 51a of the upper passage 50 is provided adjacent to one cover (eg, the right cover 14) of the cabinet 10 . Also, the inlet 51a of the upper passage 50 may be provided adjacent to the rear cover 12 of the cabinet 10 . The outlet 53b of the upper passage 50 may be provided adjacent to the front cover 11 of the cabinet 10 . The inlet 51a of the upper passage 50 communicates with the outlet 55b of the rear passage 55 .

Meanwhile, the outlet 53b of the upper passage 50 may be provided adjacent to the other cover of the cabinet 10 (eg, the left cover 13). Accordingly, the inlet 51a and the outlet 53b of the upper flow passage 50 may be located in a diagonal direction of the upper surface of the cabinet 10 . In other words, the inlet 51a of the upper passage 50 is provided at one corner of the cabinet 10, and the outlet 53b of the upper passage 50 is at the other corner of the cabinet 10 located on the opposite side in the diagonal direction. can be provided.

A blowing fan 61 is installed at the outlet 53b of the upper passage 50 . The blowing fan 61 is accommodated inside the blowing duct 60 disposed in front of the tub 20 . The suction port 60a of the blowing duct 60 is installed to be positioned on a straight line with the outlet 53b of the upper flow passage 50.

The discharge port 60b of the blower duct 60 is provided to discharge air current to the front of the tub 20 . When the diaphragm 25 is provided on the front surface 21 of the tub 20 , the outlet 60b of the blowing duct 60 may be connected to the diaphragm 25 of the tub 20 . An upper portion of the diaphragm 25 may be provided with an inlet 25a through which air flows.

The discharge port 60b of the blowing duct 60 is provided to discharge the airflow into the diaphragm 25 in a straight line. Accordingly, the inlet airflow flowing into the suction port 60a of the blowing duct 60 and the discharge airflow discharged through the outlet port 60b may form a substantially right angle.

The upper passage 50 may include an inflow passage 51 , a heat exchange passage 52 , and a supply passage 53 .

The inflow passage 51 is provided above the tub 20 and adjacent to one side of the cabinet 10 , that is, one side of the tub 20 , and is formed to allow airflow discharged from the rear surface of the tub 20 to flow in. The inflow passage 51 is formed so that the introduced airflow flows in a straight line.

In the case of the example shown in FIG. 2 , the inflow passage 51 is provided to be adjacent to the right cover 14 of the cabinet 10 , that is, the right side surface 24 of the tub 20 , above the tub 20 .

The inlet 51a of the inflow passage 51 is connected to the outlet 55b of the rear passage 55 . The inlet 51a of the inflow passage 51 is provided at the rear end of the inflow passage 51, and the outlet 51b of the inflow passage 51 is in contact with one side of the inflow passage 51, that is, the heat exchange passage 52. provided on the side.

The heat exchange passage 52 is provided above the tub 20 at right angles to the inflow passage 51 and is connected to the inflow passage 51 . The heat exchange passage 52 is formed so that the introduced airflow flows in a straight line. The width of the heat exchange passage 52 is smaller than the length of the inflow passage 51 . Accordingly, the inflow passage 51 is formed to protrude from the heat exchange passage 52 toward the rear cover 12 of the cabinet 10 .

The inlet 52a of the heat exchange passage 52 is connected to the outlet 51b of the inflow passage 51 . The inlet 52a of the heat exchange passage 52 is provided at one end of the heat exchange passage 52 , and the outlet 52b of the heat exchange passage 52 is provided at the other end of the heat exchange passage 52 . The outlet 51b of the inflow passage 51 may have a size corresponding to the inlet 52a of the heat exchange passage 52 .

A lint filter 81 may be installed at the outlet 51b of the inflow passage 51 . That is, a lint filter 81 may be installed between the inflow passage 51 and the heat exchange passage 52 .

The lint filter 81 is formed to filter foreign substances such as lint included in the airflow discharged from the tub 20 .

The supply passage 53 is provided above the tub 20 and adjacent to the other side of the cabinet 10, that is, the other side of the tub 20, and discharges the air flow introduced from the heat exchange passage 52 to the blowing fan 61. is formed to The supply passage 53 is connected to the heat exchange passage 52 at right angles. The supply passage 53 is formed so that the introduced airflow flows in a straight line.

The inlet 53a of the supply passage 53 is connected to the outlet 52b of the heat exchange passage 52 . The inlet 53a of the supply passage 53 is provided on one side of the supply passage 53, that is, on a side contacting the heat exchange passage 52. The inlet 53a of the supply passage 53 may have a size corresponding to the outlet 52b of the heat exchange passage 52 .

The outlet 53b of the supply passage 53 is connected to the suction port 60a of the blowing duct 60 . As shown in FIG. 2 , the supply passage 53 is formed to discharge air toward the front of the cabinet 10 when viewed from above. Thus, the air discharged from the supply passage 53 is sucked into the rear side of the blowing duct 60 . That is, the air discharged from the supply passage 53 is sucked into the blowing fan 61 in a direction from the rear side of the cabinet 10 to the front side.

For example, the outlet 53b of the supply passage 53 is connected to the intake port 60a of the blowing duct 60 installed on the front surface 21 of the tub 20 in a straight line. Therefore, the airflow flowing into the supply passage 53 is sucked into the blowing fan 61 accommodated in the blowing duct 60 in a straight line.

The rear flow path 55 is provided on the rear plate 22 of the tub 20 and is formed to guide airflow passing through the tub 20 to an upper side of the tub 20 . The outlet 55b of the rear passage 55 is provided to be biased to one side in the rear cover 12 of the cabinet 10 and is connected to the inlet 51a of the inflow passage 51 .

A discharge passage 54 connecting the blowing duct 60 and the diaphragm 25 may be installed on the front surface 21 of the tub 20 . The discharge passage 54 is formed to discharge the air discharged from the blower duct 60 downward toward the diaphragm 25 .

For example, the discharge passage 54 is formed to connect the discharge port 60b of the blowing duct 60 and the inlet port 25a of the diaphragm 25 in a straight line. Accordingly, the airflow discharged from the blowing duct 60 may flow into the diaphragm 25 in a straight line through the discharge passage 54 .

The blowing fan 61 is formed to form an air flow so that the air discharged from the supply passage 53 is supplied to the front opening of the tub 20 .

The blowing fan 61 is installed in front of the tub 20 . Specifically, the blowing fan 61 may be installed between the front cover 11 of the cabinet 10 and the tub 20 . In addition, the blowing fan 61 may be disposed in a diagonal direction with respect to the inlet 51a of the inflow passage 51 .

The blowing fan 61 may rotate around a rotating shaft 61a disposed in the front-rear direction. That is, the blowing fan 61 may rotate around the rotating shaft 61a of the blowing fan 61 disposed in the longitudinal direction of the tub 20 . Accordingly, the blowing fan 61 may rotate about the rotating shaft 61a disposed substantially perpendicular to the front surface 21 of the tub 20 . The rotation shaft 61a of the blowing fan 61 may be installed to form a straight line with the supply passage 53 .

The blowing fan 61 is accommodated inside the blowing duct 60 installed in front of the tub 20 . The blowing fan 61 is installed inside the blowing duct 60 so as to be rotatable around a rotating shaft 61a.

The blowing duct 60 may be formed so that the airflow discharged from the supply passage 53 is introduced to the rear and discharged to the lower surface. That is, the blowing duct 60 may be formed so that the discharge direction of the air current and the inflow direction of the air flow form approximately 90 degrees.

When the blowing fan 61 rotates, air may be sucked into the suction port 60a of the blowing duct 60 and then discharged through the blowing fan 61 to the discharge port 60b provided on the lower surface of the blowing duct 60. there is. Accordingly, the direction of the air flow discharged from the discharge port 60b of the blowing duct 60 is approximately 90 degrees from the direction of the air flow flowing into the suction port 60a.

If the blowing fan 61 is installed in front of the tub 20, the space between the tub 20 and the front cover 11 of the cabinet 10 can be used, so that the size of the blowing fan 61 can be maximized. can

The heat exchange unit 70 is formed to remove moisture from the air flowing through the circulation passage 41 and heat it to make high-temperature dry air. Hereinafter, high-temperature dry air formed by the heat exchanger 70 is referred to as heated air.

The heat exchange unit 70 may include a compressor 71 , a condenser 72 , an evaporator 73 , and an expansion valve 74 . In addition, the heat exchange unit 70 includes a refrigerant pipe 75 connecting the compressor 71, the condenser 72, the evaporator 73, and the expansion valve 74 so that the refrigerant circulates. The heat exchange unit 70 may include a heat pump.

The heat exchange unit 70 removes moisture contained in the air and heats the air through heat exchange with the air while the refrigerant circulates through the condenser 72, the expansion valve 74, and the evaporator 73 by the compressor 71. is formed

An evaporator 73 and a condenser 72 are installed in the upper flow path 50 . That is, the evaporator 73 and the condenser 72 may be installed in the heat exchange passage 52 of the upper passage 50 . The evaporator 73 and the condenser 72 are installed to be spaced apart by a certain distance, and the condenser 72 is installed downstream of the evaporator 73 in the circulation direction of air flow.

The evaporator 73 is connected to the rear passage 55 and removes moisture by cooling the humid air discharged from the tub 20 .

The condenser 72 is connected to the blowing fan 61 and heats the air by radiating heat to the air introduced into the tub 20 . Accordingly, the blowing fan 61 discharges hot dry air, that is, hot air, to the diaphragm 25 .

The compressor 71 is installed above the tub 20 and outside the upper flow path 50 . That is, the compressor 71 may be installed in the space 44 provided between the upper flow path 50 and the rear surface of the tub 20 . For example, the compressor 71 may be installed between the heat exchange passage 52 and the rear cover 12, and the compressor 71 may be installed between the supply passage 53 and the rear cover 12.

A ventilation hole 95 may be provided in the rear cover 12 . For example, the ventilation hole 95 may be provided at the rear of the cabinet 10 corresponding to the position where the drying device 40 is disposed above the tub 20 . That is, the vent 95 may be provided at the rear of the upper passage 50 . External air and internal air of the cabinet 10 may pass through the vent 95 .

A cooling fan 90 supplying external air to the drying device 40 may be disposed in the vent 95 . For example, the cooling fan 90 may form an airflow such that external air of the cabinet 10 is supplied to the compressor 71 . As the cooling fan 90, an axial fan may be used. Accordingly, the cooling fan 90 may supply external air to the compressor 71 to cool the heat generated by driving the compressor 71 . The cooling fan 90 may form an air flow so that air inside the cabinet 10 is discharged to the outside of the cabinet 10 .

In order to effectively cool the heat generated by the driving of the compressor 71, the vent 95 may be provided at the rear of the cabinet 10 corresponding to the location where the compressor 71 is disposed. That is, the vent 95 may be provided at a position close to the compressor 71 of the rear cover 12 . Accordingly, since the axis of rotation of the cooling fan 90 may be disposed toward the compressor 71, the direction of the air supplied by the cooling fan 90 may be directed toward the compressor 71, and the air generated by the compressor 71 may be directed toward the compressor 71. heat can be effectively cooled.

In the drying/combining washing machine 1 according to an example of the present disclosure having the structure as described above, when the blowing fan 61 operates, the air inside the drum 30 forms an airflow, and the rear passage 55 and the circulation passage ( 41), the blowing fan 61, and the discharge passage 54, and then flows into the inside of the drum 30 again.

At this time, the heat exchanger 70 operates to remove moisture from the airflow discharged from the drum 30 and raises the temperature of the airflow. That is, the moisture of the air flow is removed by the evaporator 73 of the heat exchange unit 70, and the temperature of the air flow rises by the condenser 72. Hot air is supplied to the drum 30 by the blower fan 61 to dry the laundry in the drum 30 .

Hereinafter, main components of the washing machine 1 for drying and washing according to an example of the present disclosure will be described in detail with reference to FIGS. 3 to 8D.

3 is a perspective view showing a main configuration of a washing machine 1 for drying according to an example of the present disclosure. 4 is a view showing a cabinet 10 of a washing machine for drying according to an example of the present disclosure. 5 is a front view showing a main configuration of a washing machine 1 for drying according to an example of the present disclosure. 6 is a rear view showing the main configuration of the washing machine 1 for drying according to an example of the present disclosure. 7 is a partial perspective view illustrating the blower duct 60 and the supply duct 153 of the washing machine 1 for drying and washing according to an example of the present disclosure. 8A is a plan view showing the main configuration of a washing machine 1 for drying according to an example of the present disclosure. 8B to 8D are plan views illustrating main components of a washing machine 1 for drying according to various examples of the present disclosure.

For reference, FIGS. 3 and 5 to 8D show only the main components for drying in the washing machine 1 for drying according to an example of the present disclosure, and the cabinet 10 and other components are removed. are doing 8A to 8D are upper surfaces of the inlet duct 151, the heat exchange duct 152, and the outlet duct 153 to show the inlet flow passage 51, the heat exchange passage 52, and the supply passage 53. It is shown in a removed state.

Referring to FIG. 3 , a washing machine 1 for drying according to an example of the present disclosure may include a tub 20 , a drum 30 and a drying device 40 .

The tub 20 is installed inside the cabinet 10 of the washing machine 1, and is formed in a hollow cylindrical shape with a front opening 21a toward the laundry inlet 18 of the front cover 11. The tub 20 may accommodate a predetermined amount of wash water required for washing.

A diaphragm 25 may be installed on the front surface 21 of the tub 20 . The diaphragm 25 is formed in a substantially annular shape. One end of the diaphragm 25 is fixed to the front surface 21 of the tub 20 provided with the front opening 21a.

The diaphragm 25 prevents wash water accommodated in the tub 20 from leaking out of the tub 20 and may form a passage through which laundry passes. In addition, the diaphragm 25 may block transmission of vibration generated when the drum 30 rotates to the front cover 11 of the cabinet 10 through the tub 20 .

The drum 30 is rotatably installed inside the tub 20 and has a substantially hollow cylindrical shape. A drum opening 31a corresponding to the front opening 21a of the tub 20 is provided on the front surface 31 of the drum 30, and a rear plate 32 is provided on the rear end of the drum 30.

The side surface 33 of the drum 30 is provided with a plurality of through holes 33a through which wash water can pass. A plurality of through holes 32a may also be provided in the back plate 32 of the drum 30 . Accordingly, air inside the drum 30 may be discharged to the outside of the drum 30 through the through hole 33a formed on the side surface 33 of the drum 30 and the through hole 32a formed on the back plate 32 .

In addition, a plurality of lifts 34 capable of lifting laundry are provided on the inner circumferential surface of the drum 30 . The drum 30 is formed to be rotatable by a drive device including a drive motor 35 installed on the rear plate 32 .

The drying device 40 is installed above the tub 20 and is configured to dry laundry by rotating the drum 30 . The drying device 40 is formed to dry and heat the air discharged from the tub 20 to form hot air, and to circulate the hot air into the tub 20 to dry laundry located inside the drum 30. can

Referring to FIG. 3 , the drying device 40 includes an upper flow path 50 provided on the upper side of the tub 20, a rear flow path 55 provided on the rear side of the tub 20, and a blower for generating circulation air flow. It may include a fan 61, and a heat exchange unit 70 that removes moisture contained in the airflow and heats the airflow to form hot air.

The upper passage 50 may be formed to connect the rear passage 55 and the front of the tub 20 . The upper passage 50 may be formed in a substantially L shape. The upper flow path 50 may be formed such that air flow introduced from the rear is bent in a right angle direction, moved in a straight line by a predetermined distance, and then bent again in a right angle direction and discharged toward the front of the cabinet 10 to the outside.

The upper passage 50 may be installed adjacent to the front surface 21 of the tub 20 . Accordingly, a space 44 in which the compressor 71 of the heat exchange unit 70 can be installed may be provided between the rear surface of the tub 20 and the upper flow path 50 in the upper space of the tub 20 . Here, the front surface 21 of the tub 20 refers to the surface on which the front opening 21a is formed. One side of the tub 20 refers to the left or right side with respect to the front surface 21 of the tub 20, and the other side of the tub 20 refers to one side of the tub 20 with respect to the front surface 21 of the tub 20. say the other side of

In the case of the example shown in FIG. 3 , the upper passage 50 is installed adjacent to the front surface 21 of the tub 20 . Accordingly, a space 44 in which the compressor 71 is installed may be provided between the upper flow path 50 and the rear surface of the tub 20 to the upper side of the tub 20 .

The inlet 51a of the upper passage 50 may be provided to be adjacent to one side and the rear surface of the tub 20 . The inlet 51a of the upper passage 50 communicates with the outlet 55b of the rear passage 55 .

The outlet 53b of the upper passage 50 may be provided adjacent to the other side of the tub 20 and the front surface 21 . Accordingly, the inlet 51a and the outlet 53b of the upper passage 50 may be provided on the upper side of the tub 20 in a diagonal direction. In other words, the inlet 51a of the upper flow path 50 is provided at one corner of the tub 20, and the outlet 53b of the upper flow path 50 is at the other edge of the tub 20 located on the opposite side in the diagonal direction. can be provided.

A blowing fan 61 is installed at the outlet 53b of the upper passage 50 . The blowing fan 61 is accommodated inside the blowing duct 60 . The suction port of the blowing fan 61 coincides with the suction port 60a of the blowing duct 60 . The blowing duct 60 is installed so that the intake port 60a and the outlet 53b of the upper flow path 50 are positioned in a straight line.

The upper passage 50 may include an inflow passage 51 , a heat exchange passage 52 , and a supply passage 53 .

The inflow passage 51 is provided above the tub 20 and adjacent to one side of the tub 20 , and is formed so that the air flow discharged from the rear plate 22 of the tub 20 flows in. The inflow passage 51 is formed so that the introduced airflow flows in a straight line.

The inlet 51a of the inflow passage 51 is connected to the outlet 55b of the rear passage 55 . The inlet 51a of the inflow passage 51 is provided at the rear end of the inflow passage 51, and the outlet 51b of the inflow passage 51 is in contact with one side of the inflow passage 51, that is, the heat exchange passage 52. provided on the side. Therefore, the outlet 51b of the inflow passage 51 forms a right angle with the inlet 51a of the inflow passage 51 .

A lint filter 81 may be installed at the outlet 51b of the inflow passage 51 . The lint filter 81 may be detachably installed at the outlet 51b of the inflow passage 51 . The lint filter 81 may be detachably installed from the inflow passage 51 in front of the tub 20 .

The outlet 51b of the inflow passage 51 may be formed larger than the inlet 51a. For example, the outlet 51b of the inflow passage 51 may be formed to be twice or more larger than the inlet 51a of the inflow passage 51 . In this way, if the outlet 51b of the inflow passage 51 is made larger than the inlet, the size of the lint filter 81 installed at the outlet 51b of the inflow passage 51 can be increased.

That is, the lint filter 81 may be formed in a size corresponding to the inlet 52a of the heat exchange passage 52 . If the size of the lint filter 81 is increased, flow resistance by the lint filter 81 can be reduced.

The air flow introduced into the inlet 51a of the inflow passage 51 passes through the lint filter 81 installed at the outlet 51b and then is discharged to the inlet 52a of the heat exchange passage 52 .

The heat exchange passage 52 is provided above the tub 20 at right angles to the inflow passage 51 and is connected to the inflow passage 51 . The heat exchange passage 52 is formed so that the introduced airflow flows in a straight line.

The width of the heat exchange passage 52 can be as large as possible to maximize the heat transfer area. However, the width of the heat exchange passage 52 is smaller than the length of the inlet passage 51 . For example, the width of the heat exchange passage 52 may be formed to be more than half of the length of the tub 20 . Accordingly, the inflow passage 51 is formed to protrude from the heat exchange passage 52 toward the rear cover 12 of the cabinet 10 .

The inlet 52a of the heat exchange passage 52 is provided at one end of the heat exchange passage 52 , and the outlet 52b of the heat exchange passage 52 is provided at the other end of the heat exchange passage 52 . That is, the inlet 52a and the outlet 52b of the heat exchange passage 52 are provided to face each other on a straight line. The inlet 52a and the outlet 52b of the heat exchange passage 52 may be formed to have the same cross section as the heat exchange passage 52 .

The inlet 52a of the heat exchange passage 52 is connected to the outlet 51b of the inflow passage 51 . The outlet 51b of the inflow passage 51 may have a shape and size corresponding to the inlet 52a of the heat exchange passage 52 .

The supply passage 53 is provided above the tub 20 and adjacent to the other side of the tub 20 , and is formed to discharge the air flow introduced from the heat exchange passage 52 to the blowing fan 61 . The supply passage 53 is connected to the heat exchange passage 52 at right angles. The supply passage 53 is formed so that the introduced airflow flows in a straight line.

The inlet 53a of the supply passage 53 is connected to the outlet 52b of the heat exchange passage 52 . The inlet 53a of the supply passage 53 is provided on one side of the supply passage 53, that is, on a side contacting the heat exchange passage 52. The inlet 53a of the supply passage 53 may have a shape and size corresponding to the outlet 52b of the heat exchange passage 52 .

The outlet 53b of the supply passage 53 is formed on the front surface of the supply passage 53 and is provided at right angles to the inlet 53a of the supply passage 53 . The outlet 53b of the supply passage 53 is connected to the suction port 60a of the blowing duct 60 .

The supply passage 53 is formed to discharge air toward the front of the cabinet 10 . Accordingly, the air discharged from the outlet 53b of the supply passage 53 is sucked into the rear surface of the blowing duct 60 . That is, the air discharged from the outlet 53b of the supply passage 53 is sucked into the blowing fan 61 from the rear side of the cabinet 10 to the front side.

For example, the outlet 53b of the supply passage 53 is connected to the intake port 60a of the blowing duct 60 installed on the front surface 21 of the tub 20 in a straight line. Therefore, the airflow flowing into the supply passage 53 is sucked into the blowing fan 61 accommodated in the blowing duct 60 in a straight line.

The discharge port 60b of the blowing duct 60 is provided to discharge the air flow downward toward the diaphragm 25 of the tub 20 . The discharge port 60b of the blowing duct 60 may be connected to the diaphragm 25 of the tub 20 .

For example, the discharge port 60b of the blowing duct 60 is provided to discharge the airflow into the diaphragm 25 in a straight line. Accordingly, the inlet airflow flowing into the suction port 60a of the blowing duct 60 and the discharge airflow discharged through the outlet port 60b may form a substantially right angle.

The rear flow path 55 is provided on the rear plate 22 of the tub 20 and is formed to guide airflow discharged from the tub 20 to an upper side of the tub 20 . A rear opening 22a through which air flow is discharged may be provided in the rear plate 22 of the tub 20 . The inlet of the rear passage 55 is connected to the rear opening 22a of the tub 20 . The outlet 55b of the rear passage 55 is provided to be biased to one side at the rear surface of the tub 20 and is connected to the inlet 51a of the inflow passage 51 .

A discharge passage 54 connecting the blowing fan 61 and the diaphragm 25 may be installed on the front surface 21 of the tub 20 . The discharge passage 54 may be formed to connect the discharge port 60b of the blowing duct 60 and the inlet port 25a of the diaphragm 25 .

For example, the discharge passage 54 is formed to connect the discharge port 60b of the blowing duct 60 and the inlet port 25a of the diaphragm 25 in a straight line. Accordingly, the airflow discharged from the blowing duct 60 may flow into the diaphragm 25 in a straight line through the discharge passage 54 .

The blowing duct 60 may be installed on the front surface 21 of the tub 20 . A blowing fan 61 is accommodated inside the blowing duct 60 . The blowing duct 60 may be formed such that air flow is introduced to the rear and discharged to the lower surface. That is, the blowing duct 60 may be formed so that the discharge direction of the air current and the inflow direction of the air flow form approximately 90 degrees.

A suction port 60a is provided on the rear side of the blower duct 60, and a discharge port 60b is provided on the lower side of the blower duct 60. As an example, the blowing fan 61 installed inside the blowing duct 60 may be a sirocco fan.

When the blowing fan 61 rotates, air may be sucked into the suction port 60a of the blowing duct 60 and then discharged through the discharge port 60b provided on the lower surface of the blowing duct 60 . Accordingly, the direction of the airflow discharged from the outlet 60b of the blowing duct 60 is approximately 90 degrees from the direction of the airflow sucked into the suction port 60a of the blowing duct 60 .

The heat exchange unit 70 is formed to create hot air by removing moisture from air flowing through the heat exchange passage 52 and heating the air. The heat exchange unit 70 may include a compressor 71 , an evaporator 73 , a condenser 72 , and an expansion valve 74 . In addition, the heat exchange unit 70 includes a refrigerant pipe 75 connecting the compressor 71, the evaporator 73, the condenser 72, and the expansion valve 74 so that the refrigerant circulates.

The heat exchange unit 70 removes moisture contained in the air and heats the air through heat exchange with the air while the refrigerant circulates through the condenser 72, the expansion valve 74, and the evaporator 73 by the compressor 71. is formed to

The evaporator 73 and the condenser 72 may be installed in the heat exchange passage 52 . The evaporator 73 and the condenser 72 are installed to be spaced apart by a certain distance, and the condenser 72 is installed downstream of the evaporator 73 in the circulation direction of air flow.

The evaporator 73 is connected to the rear passage 55 and removes moisture by cooling the humid air discharged from the tub 20 .

The condenser 72 is connected to the blowing fan 61 and heats the air passing through the evaporator 73 . Therefore, the high-temperature dried air can be discharged to the diaphragm 25 by the blowing fan 61 .

The compressor 71 is installed above the tub 20 and outside the upper flow path 50 . That is, the compressor 71 may be installed in the space 44 provided between the upper flow path 50 and the rear surface of the tub 20 . For example, the compressor 71 may be installed in the space 44 provided between the heat exchange passage 52 and the rear surface of the tub 20, and the compressor 71 may be installed between the supply passage 53 and the rear surface of the tub 20. It may be installed in the space 44 between them.

The refrigerant pipe 75 may be installed in the space 44 formed by the inflow passage 51, the heat exchange passage 52, the supply passage 53, and the rear surface of the tub 20 to the upper side of the tub 20. there is.

Referring to FIG. 4 , ventilation holes 95 may be provided in the rear cover 12 of the cabinet 10 . That is, the ventilation hole 95 may be provided at the rear of the cabinet 10 corresponding to the position where the drying device 40 is disposed above the tub 20 . External air and internal air of the cabinet 10 may pass through the vent 95 .

A cooling fan 90 supplying external air to the drying device 40 may be disposed in the vent 95 . Accordingly, the cooling fan 90 may supply external air to the compressor 71 of the drying device 40 to cool the heat generated by driving the compressor 71 .

In order to effectively cool the heat generated by the driving of the compressor 71, the vent 95 may be provided at the rear of the cabinet 10 corresponding to the location where the compressor 71 is disposed. Accordingly, since the direction of the air supplied by the cooling fan 90 may be disposed toward the compressor 71, the heat of the compressor 71 may be effectively cooled.

Referring to FIG. 8A , the inflow passage 51, the heat exchange passage 52, the supply passage 53, the rear passage 55, and the discharge passage 54 include an inlet duct 151, a heat exchange duct 152, It may be formed of a supply duct 153, a rear duct 155, and a discharge duct 154.

Specifically, the inner space of the inlet duct 151 forms the inlet flow path 51, the inner space of the heat exchange duct 152 forms the heat exchange flow path 52, and the inner space of the supply duct 153 forms the supply flow path. (53). The heat exchange unit 70 , the inlet duct 151 , and the supply duct 153 may form a drying device 40 .

In addition, the inner space of the rear duct 155 forms the rear passage 55, and the inner space of the discharge duct 154 forms the discharge passage 54.

The inlet duct 151 has a rectangular cross section, and the rear end is connected to the rear duct 155 forming the rear flow passage 55. That is, the inlet 51a is provided at the rear of the inlet duct 151. The inlet duct 151 is installed above the tub 20 and adjacent to one side of the tub 20 . The front surface of the inlet duct 151 is adjacent to the front surface 21 of the tub 20 and the rear surface is installed adjacent to the rear surface of the tub 20 .

An outlet 51b is provided on one side of the inlet duct 151 . The outlet 51b of the inlet duct 151 has a shape and size corresponding to the inlet 52a of the heat exchange duct 152 . The outlet 51b of the inlet duct 151 and the inlet 52a of the heat exchange duct 152 may be formed in a rectangular shape. The size of the outlet 51b of the inlet duct 151 may be equal to or larger than that of the inlet 52a of the heat exchange duct 152 . The width of the outlet 51b of the inlet duct 151 is shorter than the length of the inlet duct 151.

The inlet 51a and the outlet 51b of the inlet duct 151 may be arranged at right angles.

The inlet duct 151 is disposed on one side of the heat exchange duct 152, and guides air introduced from the rear toward the heat exchange duct 152.

A lint filter 81 may be disposed inside the inlet duct 151 . The lint filter 81 may be disposed to be drawn out from the inlet duct 151 .

The front of the inlet duct 151 is open, and the lint filter box 80 can be detachably installed on the inlet duct 151 through the front. The lint filter box 80 may be installed to slide inside the inlet duct 151. Therefore, the lint filter box 80 can be inserted into or removed from the inlet duct 151 from the front of the tub 20 .

The cooling fan 90 may be disposed at the rear of the drying device 40 . The cooling fan 90 may form a supply air stream B1 supplying external air to the drying device 40 . For example, the cooling fan 90 may be disposed close to the compressor 71 so that the supply airflow B1 is supplied to the compressor 71 . The cooling fan 90 may supply external air to the compressor 71 to cool heat generated by driving the compressor 71 .

Referring to FIG. 8B , the dryer/washing machine 1 according to an example of the present disclosure is disposed in front of a cooling fan 90, and directs external air supplied by the cooling fan 90 toward the compressor 71. It may include a blowing guide 91 that does. The blowing guide 91 may be shaped so that the airflow B2 formed by the cooling fan 90 can reach the compressor 71 in consideration of the position where each component of the drying device 40 is disposed.

The blowing guide 91 may be formed as a hollow duct with both ends open, and one end may be disposed in front of the cooling fan 90 and the other end may be disposed toward the side of the compressor 71 . Accordingly, the cooling fan 90 may form a guide airflow B2 so that the outside air is directed toward the compressor 71 . In addition, by disposing the blowing guide 91 , external air can be effectively supplied to the compressor 71 even when the cooling fan 90 is not disposed close to the compressor 71 .

Referring to FIG. 8C , in the cooling fan 90 according to an example of the present disclosure, the rotation axis of the cooling fan 90 directs the air supplied by the cooling fan 90 toward the compressor 71. can be placed towards Accordingly, since the cooling fan 90 can form the supply air stream B3 so that external air is directly supplied toward the compressor 71, the cooling fan 90 can effectively cool the compressor 71.

Referring to FIG. 8D , a heat sink 92 for dissipating heat may be installed in the compressor 71 according to an example of the present disclosure. The heat sink 92 may be made of a metal material such as copper or aluminum having high thermal conductivity. One side of the heat sink 92 may be disposed on the side of the compressor 71 . A plurality of protruding fins may be formed on the other side of the heat dissipation plate 92 , and the plurality of fins may widen a cross-sectional area for dissipating heat to facilitate heat conduction. Accordingly, the heat dissipation plate 92 can smoothly cool the compressor 71 by the cooling fan 90 .

For example, the heat sink 92 may be disposed from the side of the compressor 71 toward the cooling fan 90 . That is, since the plurality of fins formed on the other side of the heat sink 92 are disposed toward the cooling fan 90, the cooling fan 90 can effectively cool the compressor 71.

Hereinafter, with reference to FIGS. 9 and 10 , the lint filter box 80 used in the washing machine 1 for drying and washing according to an example of the present disclosure will be described in detail.

9 is a perspective view illustrating a state in which the lint filter box 80 is withdrawn from the washing machine 1 for drying and washing according to an example of the present disclosure. 10 is a perspective view illustrating the lint filter box 80 of the washing machine 1 for drying and washing according to an example of the present disclosure. For reference, FIG. 10 is a perspective view showing a state in which the upper surface of the lint filter box 80 is removed to show the lint filter 81 .

When the user pulls the front of the lint filter box 80 accommodated in the inlet duct 151, as shown in FIG. It can protrude from the front cover 11 of the.

As shown in FIGS. 9 and 10 , the lint filter box 80 is formed in a substantially rectangular parallelepiped shape with a long length. The rear end 82 of the lint filter box 80 is open, and a filter hole 83 is provided on one side of the lint filter box 80, that is, on the side of the inlet duct 151 in contact with the outlet 51b. The filter hole 83 may be formed in a shape and size corresponding to the outlet 51b of the inlet duct 151.

The open rear end 82 of the lint filter box 80 communicates with the rear end of the inlet duct 151. Accordingly, the air flow introduced through the inlet 51a of the inlet duct 151 may flow into the lint filter box 80 through the opening of the rear end 82 of the lint filter box 80 .

A lint filter 81 may be installed in the filter hole 83 of the lint filter box 80 . The lint filter 81 may be detachably installed in the filter hole 83 . Thus, the air flow introduced into the lint filter box 80 passes through the lint filter 81 and moves to the heat exchange duct 152 . Accordingly, foreign substances such as lint included in the airflow discharged from the tub 20 may be removed by the lint filter 81 .

Since the removed foreign matter is accommodated in the lint filter box 80, the lint filter box 80 can be separated from the cabinet 10 of the washing machine 1 to empty the lint filter box 80. At this time, if the lint filter 81 is contaminated, the lint filter 81 installed in the lint filter box 80 may also be cleaned or replaced. The washing machine 1 with dryer according to an example of the present disclosure having such a structure can easily remove foreign substances such as lint collected in the lint filter box 80 .

In the washing machine 1 for drying and washing according to an example of the present disclosure, the rear plate of the drum 30 is discharged through the rear plate 32 of the drum 30 so that the air current introduced to the front of the drum 30 is discharged. A plurality of through holes 32a and a pressure seal are provided in (32).

Hereinafter, with reference to FIGS. 11 to 14 , a plurality of through holes 32a and pressure seals provided in the rear plate 32 of the drum 30 will be described in detail.

11 is a cross-sectional perspective view showing a main configuration of a washing machine 1 for drying according to an example of the present disclosure. 12 is a perspective view illustrating the rear plate 32 of the drum 30 of the washing machine 1 for drying and washing according to an example of the present disclosure. 13 is a perspective view illustrating the discharge duct 154 of the washing machine 1 for drying and washing according to an example of the present disclosure. 14 is a cross-sectional view illustrating a state of airflow passing through the drum 30 of the washing machine 1 for drying and washing according to an example of the present disclosure.

Referring to FIGS. 11 and 12 , a plurality of through holes 32a are formed in the back plate 32 of the drum 30 . A plurality of through holes 32a are formed to pass through the rear plate 32 of the drum 30 from the front to the rear. A plurality of through holes 32a may be formed in all parts except for the coupling part 36 of the flange shaft provided in the rear plate 32 of the drum 30. For example, the plurality of through holes 32a may be formed of hundreds of fine holes or more.

In addition, the total area of the plurality of through holes 32a may be three times greater than the cross-sectional area of the discharge duct 154 installed at the inlet 25a of the diaphragm 25 . For example, when the cross-sectional area of the discharge duct 154 is 7000 mm 2 , the total area of the plurality of through holes 32a can be 24,000 mm 2 . Here, the cross-sectional area of the discharge duct 154 refers to the cross-sectional area of the inlet 54a of the discharge duct 154 shown in FIG. 12 .

In this way, when a plurality of through holes 32a are formed in the back plate 32 of the drum 30, the passage of the drum 30 is compared to the case where the plurality of through holes 33a are provided only on the side surface 33 of the drum 30. resistance can be greatly reduced. Accordingly, most of the air current flowing into the drum opening 31a of the drum 30 is discharged to the rear flow path 55 through the plurality of through holes 32a of the back plate 32 . As a result, the high-temperature dry airflow introduced into the front of the drum 30 passes through all the laundry in the drum 30 and is discharged through the plurality of through holes 32a of the back plate 32 of the drum 30. Laundry can be dried effectively.

However, as shown in FIG. 14, a portion of the air flow introduced into the drum 30 passes through a plurality of through holes 33a formed on the side surface 33 of the drum 30 between the tub 20 and the drum 30. After being discharged into the space of the tub 20, it may be discharged to the rear passage 55 through the discharge hole 22a formed in the rear plate 22 of the tub 20. When the airflow is discharged through the plurality of through holes 33a formed on the side surface 33 of the drum 30 as described above, the airflow is prevented from passing through all the laundry, and thus drying efficiency is reduced.

In order to further increase the drying efficiency, it is necessary to prevent air flow in the drum 30 from being discharged through the plurality of through holes 33a of the side 33 of the drum 30 where possible.

To this end, a pressure seal is provided between the rear surface of the rear plate 32 of the drum 30 and the front surface of the rear plate 22 of the tub 20 . The pressure seal may be formed of a labyrinth seal.

Referring to FIG. 11, a first labyrinth seal 27 is provided on the rear edge of the rear plate 32 of the drum 30, and a second labyrinth seal (27) is provided on the front edge of the rear plate 22 of the tub 20. 28) is provided.

The first labyrinth seal 27 is formed of a first rib 27b protruding toward the tub 20 from the first base 27a installed outside the rear surface of the drum 30, and the second labyrinth seal 28 The second rib 28b protrudes toward the drum 30 from the second base 28a installed inside the rear surface of the silver tub 20 .

When the first and second labyrinth seals 27 and 28 are installed between the rear surface of the rear panel 32 of the drum 30 and the front surface of the rear panel 22 of the tub 20, the rear panel of the drum 30 A large flow resistance is generated between the rear surface of the tub 32 and the front surface of the rear plate 22 of the tub 20 . Therefore, the amount of air leaked through the plurality of through holes 33a of the side surface 33 of the drum 30 and introduced between the rear plate 32 of the drum 30 and the rear plate 22 of the tub 20 is minimized. can do.

15 is a graph showing reduction in airflow leakage from the side of the drum 30 by the labyrinth seals 27 and 28 of the washing machine 1 for drying and washing according to an example of the present disclosure.

In FIG. 15, the vertical axis represents the leak rate. The leak rate represents the ratio of air that is discharged through the plurality of through holes (33a) of the side surface (33) of the drum (30) out of the air introduced into the drum (30). The leak rate was calculated through computer simulation.

A represents the leakage rate of the washing machine for drying and washing according to an example of the present disclosure without the labyrinth seals 27 and 28, and B represents the washing machine for drying and combining according to the present disclosure with the labyrinth seals 27 and 28 (1) represents the leak rate of The washing machine for drying and washing of A has the same structure as the washing machine for drying and washing 1 of B except that the labyrinth chambers 27 and 28 are not present.

Referring to FIG. 15 , in the case of the dryer/combined washing machine without labyrinth seals 27 and 28, the leakage rate (A) is 26.9%, but in the case of the dryer/combined washing machine 1 with labyrinth seals 27 and 28, The leak rate (B) is 12.8%. Accordingly, it can be seen that the air leakage rate through the plurality of through holes 33a of the side surface 33 of the drum 30 is reduced by more than half due to the labyrinth seals 27 and 28 .

The drying/combining washing machine 1 according to an embodiment of the present disclosure having the structure described above has a flow path shape and a blowing fan capable of minimizing flow resistance and maximizing air volume. Accordingly, the drying performance of the combined drying washing machine according to an embodiment of the present disclosure is similar to that of a dedicated dryer having only a drying function without a washing function.

In other words, the combined drying washing machine according to the present disclosure has an effect of having drying performance comparable to that of a dedicated dryer.

In the above, various embodiments of the present disclosure have been individually described, but each embodiment is not necessarily implemented alone, and the configuration and operation of each embodiment may be implemented in combination with at least one other embodiment.

In addition, although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and the technical field to which the disclosure belongs without departing from the subject matter of the present disclosure claimed in the claims. Of course, various modifications are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

Claims (7)

In the drying combined washing machine, A cabinet in which a laundry input port is provided on the front side; a tub disposed inside the cabinet and provided with a front opening and a rear opening connected to the laundry inlet; a drum rotatably disposed inside the tub; and A drying device disposed above the tub and supplying hot air toward the front opening, The drying device, A heat exchange unit including an evaporator and a condenser; a compressor disposed behind the heat exchange unit and compressing and circulating the refrigerant in the heat exchange unit; an inlet duct disposed on one side of the heat exchange unit and guiding air introduced from the rear toward the heat exchange unit; a supply duct disposed on the other side of the heat exchange unit and guiding the air passing through the heat exchange unit to be discharged forward; and A blowing fan supplying the air discharged from the supply duct to the front opening, The drying combined washing machine, Ventilation holes provided at the rear of the cabinet corresponding to the location where the drying device is disposed; and The washing machine for drying and drying further comprising a; cooling fan disposed in the ventilation hole and supplying external air to the compressor. According to claim 1, and a blower guide disposed in front of the cooling fan and guiding the external air supplied by the cooling fan toward the compressor; further comprising a dryer and dryer. According to claim 2, The blower guide, The dryer and washing machine are formed of a hollow duct with both ends open, one end disposed in front of the cooling fan, and the other end disposed toward the side of the compressor. According to claim 1, the vent, The dryer and washing machine is provided at a rear of the cabinet corresponding to a position where the compressor is disposed so that the air supplied by the cooling fan is directed toward the compressor. According to claim 1, The cooling fan is and a rotating shaft disposed toward the compressor so that the air supplied by the cooling fan is directed toward the compressor. According to claim 1, The dryer and dryer further comprising a heat dissipation plate disposed on a side surface of the compressor and dissipating heat from the compressor. According to claim 6, The heat sink is A drying/combining washing machine disposed in a direction from the side of the compressor toward the cooling fan.

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