Laundry treating apparatus

Abstract

A laundry treating apparatus includes a cabinet provided with a rear plate, a drum provided with a drum back, and a driving part, the rear plate includes a driving mounting part and an air flow part, the drum back includes a driving connecting part and an air passing part, and the air flow part includes an air guide part protruding within the flow space and guiding the flow of air.

Description

TECHNICAL FIELD

[0001] The present application relates to a laundry treating apparatus, and more particularly, to a laundry treating apparatus including a driving part connected with a drum accommodating laundry and capable of rotating the drum. BACKGROUND

[0002] A laundry treating apparatus is an apparatus performing various treating processes on laundry, such as washing or drying the laundry, and includes a washing machine, a dryer, a laundry styler, etc.

[0003] A washing machine is provided to perform a washing course capable of separating and removing foreign substances on laundry by supplying water and a detergent to the laundry. A dryer can be classified into an exhaust type or a circulation type dryer according to whether air is circulated or not, and both the exhaust and circulation type dryers are provided to perform a drying course by heating air and supplying the heated air to the laundry to remove moisture present in the laundry.

[0004] A laundry treating apparatus can include a driving part for rotating a drum, and the driving part can be connected with the drum in various ways and provide a rotational force.

[0005] As a related document, Korean Patent Laid-open Publication No. 10-2019-0121656 discloses a laundry treating apparatus in which a driving part is disposed at a lower side of an inside of a cabinet and connected with a drum belt.

[0006] The laundry treating apparatus corresponds to a dryer capable of drying laundry, and includes a circulation flow path receiving air of a drum and providing the air to the drum again, and a heat pump connected with the circulation flow path and heating the air.

[0007] In the laundry treating apparatus, since a driving shaft of the driving part and a rotational shaft of the drum are not located on the same line, a power of the driving part is provided to the drum using an additional power transmission medium such as a belt.

[0008] In a case where the driving part is located on a bottom of a cabinet and provides a rotational force to the drum using a belt, since a difference in diameter between the driving shaft or the like and the drum is large, an additional transmission such as a reducer for increasing a torque can be omitted.

[0009] However, if a rotational force is provided from the driving part to the drum using a belt, slippage can easily occur between the belt and the driving part or between the belt and the drum due to a rotational speed of the driving shaft or inertia of the drum.

[0010] Therefore, in the laundry treating apparatus, since the sliding or the like is present, it can be disadvantageous in terms of efficiency, and it can be limited to change the rotational speed of the driving shaft or to change the rotational direction, thereby being disadvantageous in applying an efficient drum rotation strategy.

[0011] Further, in the laundry treating apparatus, the air circulating part and the heat pump are disposed at the lower portion of the cabinet, for example, at a base part provided at the bottom of the cabinet, and the driving part is also disposed, and thus, the disposition between the structures is limited, and the space allocable to each structure is limited, thereby being disadvantageous.

[0012] On the other hand, unlike the laundry treating apparatus, the driving part can be disposed at the rear side of the drum and connected with the drum, without being disposed at the lower side of the cabinet. In this case, the belt or the like configuration for connecting the driving part and the drum can be omitted.

[0013] As related documents, Japanese Patent Laying-Open No. JPS55-081914A, Japanese Patent Laying-Open No. JPS55-115455A, Japanese Patent Laying-Open No. JPS57-063724A, and Japanese Patent Laying-Open No. JPS57-124674A disclose a laundry treating apparatus in which a driving part is fixed at the back side of a cabinet.

[0014] In the laundry treating apparatus, the driving part can be disposed at the rear of the drum and rotate the drum, and thus, the driving shaft of the driving part and the rotational shaft of the drum can be located on the same line, thereby being able to directly rotate the drum by the driving part without using a belt or the like.

[0015] Thereby, it is possible to solve the sliding phenomenon generated by the belt or the like, and it is possible to directly transmit the rotation of the driving shaft to the drum, thereby being advantageous in establishing a rotation strategy of the drum.

[0016] It is noted that the laundry treating apparatus corresponds to a dryer, unlike a washing machine, in which an outer tub in which a drum is built-in and water is contained is not present, and thus, the driving part is coupled to the back panel of the cabinet from the rear of the drum.

[0017] Further, the laundry treating apparatus can supply air to the inside of the drum to dry laundry, and can provide a flow part of air for supplying air to the inside of the drum at the rear side of the drum to smoothly supply air to the inside of the drum rotating.

[0018] Thereby, in the laundry treating apparatus, the driving part and the flow part of air are provided together at the rear side of the drum, and thus, the design of the back of the cabinet including the driving part and the flow part of air becomes an important issue.

[0019] As a related document, Korean Patent Laid-open Publication No. 10-2020-0065932 discloses a laundry treating apparatus in which a driving part is combined to a back surface of a cabinet located at a rear of a drum, and a flow part of air facing a back surface of the drum and flowing air to a back surface side of the drum is provided.

[0020] In the laundry treating apparatus, the driving part is combined to a back surface of the cabinet facing a center of the back surface of the drum, and a flow part for air flow is provided at a periphery of the driving part.

[0021] The flow part is provided as a duct forming a space for air flow is combined to the back surface of the cabinet, a plurality of holes are formed in front of the duct at the back surface of the cabinet, and air in the duct is supplied to the back surface of the drum.

[0022] However, in the laundry treating apparatus, an additional duct member protruding to a rear is combined to the back surface of the cabinet in order to form the flow part, and thus additional fixation for combining the duct member is generated, and air leakage between the duct member and the back surface of the cabinet can occur, which can be disadvantageous.

[0023] In addition, a plurality of holes are formed in front of the duct member at the back surface of the cabinet, and thus an additional punching process of the cabinet is required to be additionally performed, and further, since front flow of air is hindered in an area other than the holes, it can be disadvantageous to supply air to the back surface of the drum.

[0024] On the other hand, in a process of drying laundry by supplying hot air to an inside of a drum, if flow of air inside the flow part of the rear plate is unstable or uniformity is reduced, it can cause a bad influence on drying efficiency of the laundry.

[0025] Further, it can be advantageous to concentrate supply of hot air to a specific area inside the drum according to laundry behavior inside the drum or rotation characteristics of the drum, etc. That is, it is possible to effectively improve drying efficiency of the laundry by strategically providing an area for concentrated flow of air in the flow part of the air.

[0026] Therefore, an important issue in the technical field is to develop an air flow part having a structure for effectively supplying air from a rear plate to a drum, to improve flow of air in the air flow part, and to adjust a flow direction of air in an effective manner. SUMMARY

[0027] An object of an embodiment of the present invention is to provide a laundry treating apparatus in which a driving part is directly connected to a drum to effectively transmit power of the driving part to the drum, and an effective rotation method of the drum can be applied.

[0028] In addition, an object of an embodiment of the present application is to provide a laundry treating apparatus including an air flow portion having an effective structure for supplying air from a rear plate to an inside of a drum.

[0029] In addition, an object of an embodiment of the present application is to provide a laundry treating apparatus capable of effectively increasing a space inside a cabinet and effectively increasing a capacity of a drum.

[0030] In addition, an object of an embodiment of the present application is to provide a laundry treating apparatus capable of effectively guiding a flow direction of air flowing along an air flow portion, thereby being capable of effectively improving a flow property of air.

[0031] In addition, an object of an embodiment of the present application is to provide a laundry treating apparatus capable of effectively guiding a flow-in direction of air flowing into an air flow portion via a flow-in guide portion of the air flow portion.

[0032] In addition, an object of an embodiment of the present application is to provide a laundry treating apparatus capable of suppressing a turbulent flow of air flowing in an air flow portion via a flow-out guide portion of the air flow portion and improving a flow-out uniformity of air or effectively forming a flow-out concentration area.

[0033] According to an embodiment of the present application, a rear plate which can form a back of a cabinet is included. The rear plate includes a driving mounting portion to which a driving portion is coupled and an air flow portion through which air flows.

[0034] A circulation flow path through which air circulates including an inside of a drum can be formed in an inside of the cabinet, and an air supply portion which constitutes a part of the circulation flow path and through which air flows can be provided.

[0035] The air flow portion of the rear plate can be connected with the air supply portion to be supplied with air, an inside thereof can be formed with a flow space through which air flows, and air of the flow space can be transferred to an inside of the drum.

[0036] The air flow portion can be provided in a form of being opened in a front surface on the rear plate. The flow space of the air flow portion can be exposed to a back of the drum via the opened front surface, and air of the flow space can flow to the back of the drum via the opened front surface of the air flow portion, and thus, a flow property of air supplied to the back of the drum can be effectively improved.

[0037] The air flow portion can be formed in one body with the rear plate. For example, the air flow portion can be formed by bending and curving a part of the rear plate, and thus, the rear plate can have a structure in which air cannot leak from the air flow portion.

[0038] The flow space inside the air flow portion can be provided with an air guide portion protruding from the inner side surface of the air flow portion, and the air guide portion can guide the flow of air inside the flow space and form effective air flow.

[0039] The air guide portion can include an inflow guide portion that adjusts the air flow in the air flow portion by guiding the inflow direction of air flowing into the flow space.

[0040] The air guide portion can include an outflow guide portion that guides the outflow of air flowing along the flow space of the air flow portion, and can improve the outflow uniformity of air flowing out through the air flow portion, or can effectively increase the air outflow amount of a specific area.

[0041] The laundry treatment apparatus according to an embodiment of the disclosure includes a cabinet, a drum, and a driving portion. The rear side of the cabinet is provided with a rear plate. The drum is rotatably provided inside the cabinet, and laundry is accommodated inside the drum. A drum back surface facing the rear plate is provided at the rear side of the drum. The driving portion is coupled to the rear plate and connected to the drum.

[0042] The rear plate includes a driving mounting portion to which the driving portion is coupled, and an air flow portion surrounding the driving mounting portion, a flow space in which air flows is formed inside the air flow portion, and the flow space is open to the front to supply air to the drum back surface.

[0043] The drum back surface includes a driving connection portion facing the driving mounting portion and connected to the driving portion, and an air passing portion surrounding the driving connection portion to pass and deliver air supplied from the air flow portion to the inside of the drum. The air flow portion includes an air guide portion protruding from inside the flow space and guiding the flow of air.

[0044] The air guide portion can include an outflow guide portion protruding from a flow recess of the air flow portion that shields the rear of the flow space toward the air passing portion, and guiding the flow of air of the flow space toward the air passing portion.

[0045] The air flow portion can include a flow outer circumferential surface extending along the outer circumferential edge of the flow space, and a flow inner circumferential surface extending along the inner circumferential edge of the flow space, and the outflow guide portion can be connected to the flow outer circumferential surface and the flow inner circumferential surface.

[0046] The outflow guide portion can be formed by being bent or curved toward the air passing portion from the flow recess.

[0047] An embodiment of the present application can further include a power line drawn out from the drive mounting portion rearward of the rear plate and supplying power to the drive portion, and a rear side of the outflow guide portion of the air flow portion can be recessed toward the front to form a space for the power line to pass through and extend.

[0048] The outflow guide portion can include a guide central portion protruding from the flow recessed surface toward the air passing portion, and a guide inclined portion extending from the guide central portion in a circumferential direction of the air flow portion and decreasing in protruding height from the flow recessed surface as it moves away from the guide central portion.

[0049] An embodiment of the present application can further include an air supply portion provided inside the cabinet and supplying air to the air flow portion, and the rear plate can further include an inflow extension portion extending from the air flow portion toward the air supply portion and connected to the air supply portion.

[0050] The outflow guide portion can include a first outflow guide portion located on an opposite side of the inflow extension portion with reference to a center of the air flow portion in a ring shape. A maximum protruding height of the first outflow guide portion can be set to be greater than a depth of the flow space.

[0051] The outflow guide portion can further include a second outflow guide portion disposed between the inflow extension portion and the first outflow guide portion and guiding air of the flow space toward the air passing portion.

[0052] The air flow portion can include a first extension flow path extending from the inflow extension portion to the first outflow guide portion in one direction, and a second extension flow path extending from the inflow extension portion to the first outflow guide portion in another direction opposite to the one direction.

[0053] The air supply portion can be disposed such that an amount of air flowing into the first extension flow path through the inflow extension portion is greater than an amount of air flowing into the second extension flow path, and the second outflow guide portion can be disposed on the second extension flow path.

[0054] The air supply portion can be disposed such that a direction in which air is discharged from the inflow extension portion to the flow space is closer to the first extension flow path than to the second extension flow path.

[0055] A maximum protruding height of the second outflow guide portion can be set to be less than a depth of the flow space. The maximum protruding height of the second outflow guide portion can be set to be less than a maximum protruding height of the first outflow guide portion.

[0056] An embodiment of the present application can further include an air supply portion provided inside the cabinet and supplying air to the air flow portion, and the rear plate can further include an inflow extension portion extending from the air flow portion toward the air supply portion and connected with the air supply portion.

[0057] The air flow portion can include an inflow guide portion provided opposite the inflow extension portion and guiding a flow direction of air emitted from the air supply portion to the air flow portion.

[0058] The air flow portion can include a flow inner circumferential surface provided in a ring shape and extending along an inner circumferential edge of the flow space, and the inflow guide portion can be provided to the flow inner circumferential surface and protrude toward the air supply portion.

[0059] The air flow portion can extend in a manner that a portion of the flow inner circumferential surface protrudes toward the air supply portion to form the inflow guide portion. The portion of the flow inner circumferential surface corresponding to the inflow guide portion can extend in a straight line, and the remaining portion can extend in a curved line.

[0060] The air flow portion can include a first extension flow path extending from the inflow extension portion in one direction, and a second extension flow path extending from the inflow extension portion in another direction opposite the one direction.

[0061] The air supply portion can be provided such that an amount of air flowing to the first extension flow path is greater than an amount of air flowing to the second extension flow path, and the inflow guide portion can guide a portion of the air flowing to the first extension flow path to flow to the second extension flow path.

[0062] The driving portion can rotate the drum in a manner that the drum rotates more in the other direction than in the one direction during a drying process of laundry, the drum can rotate in the other direction, and the air of the first extension flow path flowing in the one direction can flow into an inside of the drum.

[0063] The air flow portion can include a flow outer circumferential surface extending along an outer circumferential edge of the flow space, the first extension flow path and the second extension flow path can be formed between the flow inner circumferential surface and the flow outer circumferential surface, and a separation distance of the inflow guide portion from the flow outer circumferential surface of the first extension flow path can be provided to be less than a separation distance from the flow outer circumferential surface of the second extension flow path.

[0064] Embodiments of the present application can provide a laundry treating apparatus in which a driving part is directly connected to a drum, thereby effectively transmitting power of the driving part to the drum and being able to apply an effective rotation method of the drum.

[0065] In addition, embodiments of the present application can provide a laundry treating apparatus including an air flow part having an effective structure for supplying air from a rear plate to an inside of a drum.

[0066] In addition, embodiments of the present application can provide a laundry treating apparatus capable of effectively increasing a space inside a cabinet and effectively increasing a capacity of a drum.

[0067] In addition, embodiments of the present application can provide a laundry treating apparatus effectively guiding a flow direction of air flowing along an air flow part, thereby being capable of effectively improving flow of air.

[0068] In addition, embodiments of the present application can provide a laundry treating apparatus capable of effectively guiding an inflow direction of air flowing into an air flow part through an inflow guide part of the air flow part.

[0069] In addition, embodiments of the present application can provide a laundry treating apparatus capable of suppressing turbulent flow of air flowing in an air flow part through an outflow guide part of the air flow part, improving outflow uniformity of air, or effectively forming an outflow concentration area. BRIEF DESCRIPTION OF DRAWINGS

[0070] Figure 1 is a view of a laundry treating apparatus according to an embodiment of the present application, as viewed from the outside.

[0071] Figure 2 is a view schematically showing an internal cross section of a laundry treating apparatus according to an embodiment of the present application.

[0072] Figure 3 is a view showing a case in which a laundry treating apparatus according to an embodiment of the present application is disassembled.

[0073] Figure 4 is a view showing a base part and a rear plate according to an embodiment of the present application.

[0074] Figure 5 is a view showing a cross section of an air supply part of a laundry treating apparatus according to an embodiment of the present application.

[0075] Figure 6 is a view disassembling and showing a drum and a rear plate according to an embodiment of the present application.

[0076] Figure 7This is a diagram showing a roller of a garment processing apparatus according to an embodiment of the present invention.

[0077] Figure 8 This is a diagram showing an air passage portion disposed on the back of a roller according to an embodiment of the present invention.

[0078] Figure 9 This is a view of the back of the roller of a garment processing device according to an embodiment of the present invention, viewed from the rear.

[0079] Figure 10 This is a cross-sectional view showing the back of the roller of a garment processing apparatus according to an embodiment of the present invention.

[0080] Figure 11 This is a diagram showing the configuration relationship of the roller, the back plate, and the drive unit according to an embodiment of the present invention.

[0081] Figure 12 This is an exploded view showing the rear side of the housing of a garment handling apparatus according to an embodiment of the present invention.

[0082] Figure 13 This is a diagram showing the rear plate of a garment processing device according to an embodiment of the present invention.

[0083] Figure 14 This is a view of the rear panel of a garment processing device according to an embodiment of the present invention, viewed from the rear.

[0084] Figure 15 This is a cross-sectional view showing the rear plate of a garment processing device according to an embodiment of the present invention.

[0085] Figure 16 This is a cross-section showing the rear side of the housing of a garment handling apparatus according to an embodiment of the present invention, viewed from the side.

[0086] Figure 17 It is to zoom in and show Figure 16 Diagram of the air passage section and airflow section.

[0087] Figure 18 This is a diagram showing the airflow section and inflow extension of the rear plate according to an embodiment of the present invention.

[0088] Figure 19 This is a diagram showing a fan duct section integrated with the rear panel according to an embodiment of the present invention.

[0089] Figure 20 It is shown Figure 19 The diagram shows the rear panel of the fan duct section removed.

[0090] Figure 21 This is a diagram showing an air supply section inserted into an inflow extension according to an embodiment of the present invention.

[0091] Figure 22 is a view of a blowing part of a laundry treating apparatus according to an embodiment of the present application, viewed from the rear.

[0092] Figure 23 is a view of an air guiding part provided to an air flow part according to an embodiment of the present application.

[0093] Figure 24 is a view of an inflow guiding part of an air flow part according to an embodiment of the present application.

[0094] Figure 25 is a view of a first outflow guiding part of an air flow part according to an embodiment of the present application.

[0095] Figure 26 is a view of a second outflow guiding part of an air flow part according to an embodiment of the present application.

[0096] Reference Numerals

[0097] 10: laundry treating apparatus 30: laundry door

[0098] 100: cabinet 101: upper plate

[0099] 102: front plate 1021: laundry opening

[0100] 1023: front duct 103: lower plate

[0101] 105: base part 106: air supply part

[0102] 107: blowing part 1071: blowing fan

[0103] 1073: blowing motor 1075: blowing fan support part

[0104] 108: fan duct part 1082: air discharge part

[0105] 1084: fan duct extension part 109: side plate

[0106] 110: rear plate 111: rear reference surface

[0107] 112: side coupling part 113: cover seating part

[0108] 120: driving mounting part 122: mounting front part

[0109] 124: mounting side part 126: mounting bracket

[0110] 128: bracket seating part 1282: mounting reinforcing part

[0111] 1285: partitioned area 130: air flow part

[0112] 1302: first extension flow path 1304: second extension flow path

[0113] 132: flow recessed surface 133: flow inner peripheral surface

[0114] 134: flow outer peripheral surface 135: flow space

[0115] 136: outflow guide portion 1362: first outflow guide portion

[0116] 1364: second outflow guide portion 1366: guide central portion

[0117] 1368: guide inclined portion 137: inflow guide portion

[0118] 138: inflow extension portion 1381: extension space

[0119] 1383: extension recessed surface 1385: extension peripheral surface

[0120] 140: rear protruding portion 141: rear peripheral edge region

[0121] 142: expanded peripheral edge region 143: extension member

[0122] 144: extension hole 148: rear outer peripheral surface

[0123] 1482: support insertion portion 149: rear protruding surface

[0124] 200: roller 210: roller back surface

[0125] 220: drive connection portion 222: connection front surface portion

[0126] 230: air passing portion 232: air passage

[0127] 239: air passing surface 240: peripheral edge connection portion

[0128] 300: rear seal 310: inner side seal

[0129] 320: outer side seal 330: seal main body portion

[0130] 360: seal fixing portion 361: inner side seal fixing portion

[0131] 362: outer side seal fixing portion 365: protruding extension portion

[0132] 366: fixing extension portion 400: drive portion

[0133] 402: drive fastening portion 404: power port

[0134] 500: rear cover 501: convex cover portion

[0135] 5012: convex cover outer peripheral surface 5014: convex cover rear surface

[0136] 502: flow cover portion 510: cover peripheral edge portion

[0137] 520: central cover portion 522: drive cover surface

[0138] 524: drive peripheral edge portion DETAILED DESCRIPTION

[0139] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings, so that those skilled in the art to which the present application pertains can easily practice the present application.

[0140] However, the present application can be implemented in various different ways, and is not limited to the embodiments described herein. Also, in order to clearly describe the present application, portions unrelated to the description have been omitted from the accompanying drawings, and like reference numerals have been assigned to like parts throughout the specification.

[0141] In the present specification, repeated description of the same constituent elements is omitted.

[0142] Also, in the present specification, when referring to one constituent element being "connected" or "coupled" to another constituent element, it should be understood that the one constituent element can be directly connected or coupled to the other constituent element, or that there can be another constituent element therebetween. In contrast, in the present specification, when referring to one constituent element being "directly connected" or "directly coupled" to another constituent element, it should be understood that there is no other constituent element therebetween.

[0143] Also, the terms used in the present specification are merely used to describe specific embodiments, and are not intended to limit the present application.

[0144] Also, in the present specification, unless explicitly stated otherwise in the context, a singular expression can include a plural expression.

[0145] Also, in the present specification, it should be understood that the terms "include" or "have" and the like are merely intended to denote the presence of features, numbers, steps, actions, constituent elements, components, or combinations thereof described in the specification, and do not preclude the presence or possibility of addition of one or more other features, numbers, steps, actions, constituent elements, components, or combinations thereof.

[0146] Also, in the present specification, the term "and / or" includes a combination of the plurality of described items or one of the plurality of described items. In the present specification, "A or B" can include "A", "B", or "both A and B".

[0147] Referring to Figure 1 and Figure 2 The laundry treating apparatus 10 according to an embodiment of the present disclosure can include a cabinet 100 forming an outer appearance of the laundry treating apparatus 10.

[0148] A front plate 102 can be provided at a front side of the cabinet 100, side panels 109 can be respectively provided at both sides of the cabinet 100 in a lateral direction, an upper plate 101 can be provided at an upper side of the cabinet 100, a lower plate 103 can be provided at a lower side of the cabinet 100, and a rear plate 110 can be provided at a rear side of the cabinet 100.

[0149] The front plate 102, the side panels 109, and the rear plate 110 can each be provided in a shape extending upward from the ground or the lower plate 103 in a vertical direction.

[0150] The plates can be connected to each other and can form the cabinet 100 together. The plates can be connected together and form a space for providing the drum 200 or the like inside thereof.

[0151] The front plate 102 can form a front surface of the cabinet 100, and can be formed with a laundry opening 1021 for putting laundry into the inside. The laundry opening 1021 can be disposed at a central side of the front plate 102, and a laundry door 30 for opening and closing the laundry putting opening can be provided on the front plate 102.

[0152] The front plate 102 can include a control panel, and the control panel can include an operation part through which a user can input an operation signal, a display part through which a process of treating laundry can be displayed, or the like.

[0153] However, the control panel is not necessarily provided on the front plate 102, but can be provided on the upper plate 101 or the like. Also, the control panel can be provided in a plurality of numbers and disposed on the front plate 102 and the upper plate 101 or the like, respectively.

[0154] The laundry treating apparatus 10 according to an embodiment of the present disclosure can perform a drying course of laundry, and the operation part can be provided to be able to input an execution instruction of the drying course by a user.

[0155] An embodiment of the present application can include a control portion which can be connected in signal with a control panel, inside or apart from the control panel. The control portion can be connected in signal with the control panel and a driving portion 400 and the like described later, and control the driving portion 400 and the like, and can perform a drying course of laundry and the like.

[0156] The upper plate 101 can form a top surface of the cabinet 100, and can be provided to shield an inside of the cabinet 100 at an upper portion of the cabinet 100. The side plates 109 can form both side surfaces in a side direction of the cabinet 100, respectively. For example, the side plates 109 can include a first side plate 109 forming one side surface in the side direction of the cabinet 100, and a second side plate 109 forming the other side surface in the side direction.

[0157] The lower plate 103 can form a bottom surface of the cabinet 100, and the air supply portion 106 and a heat pump described later can be provided on the lower plate 103. The rear plate 110 can form a back surface of the cabinet 100, and the air flow portion 130 and the driving installation portion 120 and the like described later can be provided to the rear plate 110.

[0158] On the other hand, referring to Figure 2 In an embodiment of the present application, a drum front surface can be provided at a front side of the drum 200, and a drum opening for putting in laundry can be provided at the drum front surface.

[0159] Laundry put in the inside of the cabinet 100 through the laundry opening 1021 provided at the front plate 102 can be put in the inside of the drum 200 through the drum opening. The drum 200 can be formed in a form in which the drum front surface is entirely open to form the drum opening.

[0160] A drum circumferential surface 290 surrounding an internal space of the drum 200 can be provided at a rear side of the drum front surface, and a drum back surface 210 can be provided at a rear side of the drum circumferential surface 290. An edge side of the drum back surface 210 can be combined with the drum circumferential surface 290.

[0161] A space defined by the drum circumferential surface 290 and the drum back surface 210 can be formed in the inside of the drum 200. The space in the inside of the drum 200 can be communicated with the outside through the drum opening, surrounded by the drum circumferential surface 290, and shielded from the rear by the drum back surface 210.

[0162] In an embodiment of the present application, the drum 200 can include a rotation shaft extending in a front-rear direction, and can be a front-loading type in which laundry is put in from the front. In the front-loading type, it can be easier to put in and take out laundry than in the top-loading type.

[0163] On the other hand, the front plate 102 can support the drum 200 in a supportable manner. That is, the front plate 102 can support a front end portion of the drum 200 in a rotatable manner. The front end portion of the drum 200 can be accommodated in the front plate 102 and supported.

[0164] For example, the front plate 102 can be provided to support the front end portion of the drum 200 at a circumference of the laundry opening 1021, whereby the laundry opening 1021 and the drum opening can be disposed opposite to each other, and the laundry opening 1021, the drum opening, and the inside of the drum 200 can be communicated.

[0165] On the other hand, the front plate 102 can include a gasket extending along a circumference of the laundry opening 1021 and surrounding at least a portion of the laundry opening 1021.

[0166] The gasket can support the front end portion of the drum 200 in a rotatable manner, and can be provided to block or inhibit air from leaking to the outside between the front plate 102 and the drum opening or between the laundry opening 1021 and the drum opening.

[0167] The gasket can be provided of a plastic resin or an elastomer, and can further be provided with an additional sealing member at an inner circumferential surface of the gasket.

[0168] On the other hand, the front plate 102 can be provided with a front wheel in contact with the front end portion of the drum 200 and supporting the drum 200 in a rotatable manner. The front wheel can be provided to support an outer circumferential surface of the drum opening, and can be provided in plural and spaced apart along a circumference of the laundry opening 1021.

[0169] The front wheel can support the drum 200 from below to above of the front end portion of the drum 200, and can be provided to rotate together by rotation of the drum 200 to minimize friction.

[0170] On the other hand, an embodiment of the present application can perform a drying course on laundry put into the inside of the drum 200, and in order to dry the laundry, air, for example, hot air heated to rise in temperature, can be supplied to the inside of the drum 200, and the air supplied to the inside of the drum 200 can be discharged to the outside of the drum 200 again in a state of containing moisture of the laundry.

[0171] An embodiment of the present application can correspond to a circulating laundry treating apparatus 10 in which air supplied to the inside of the drum 200 in a drying course of laundry is dehumidified and heated again after being discharged, and then supplied to the inside of the drum 200.

[0172] That is, an embodiment of the present application can include a circulation flow path that supplies air to the inside of the drum 200, and the air discharged from the inside of the drum 200 is supplied again to the drum 200 after being dehumidified and heated, and the drum 200 and the air supply part 106 can be included on the circulation flow path for circulation of air. The air supply part 106 can be provided to dehumidify and heat the air discharged from the drum 200 and to supply it again to the drum 200 side.

[0173] On the other hand, in an embodiment of the present application, air can flow into the inside of the drum 200 through the drum back 210 of the drum 200, and the air in the inside of the drum 200 can be discharged again to the outside of the drum 200 through the drum opening of the drum front.

[0174] In addition, in an embodiment of the present application, the front panel 102 can include a front duct 1023. The front duct 1023 can be provided to the front panel 102 and transfer the air discharged from the drum 200 to the air supply part 106 described later.

[0175] The front duct 1023 can be provided to communicate with the drum opening or the laundry opening 1021, and can be provided inside the front panel 102, or can be provided to communicate with the laundry opening 1021 through the gasket outside the front panel 102.

[0176] Figure 2 The front duct 1023 provided inside the front panel 102 of an embodiment of the present application is shown.

[0177] Referring to Figure 2 In the drum 200, the drum opening and the laundry opening 1021 can be connected while maintaining air tightness by the gasket or the sealing member described above, and the front duct 1023 can communicate with the laundry opening 1021 and the drum opening to receive the air discharged from the drum 200.

[0178] The front duct 1023 can extend along the inside of the front panel 102 and discharge air to the outside of the front panel 102, that is, the inside of the cabinet 100. In an embodiment of the present application, the air supply part 106 can be provided in the inside of the cabinet 100, and the air supply part 106 can be connected with the front duct 1023 and receive the air discharged from the front duct 1023.

[0179] Referring to Figure 2 The air supply part 106 can be provided in the inside of the cabinet 100, and can be provided on the lower panel 103 where it is relatively easy to secure space. The base part 105 can be provided on the upper portion of the lower panel 103, and the air supply part 106 or the heat pump can be provided in the base part 105.

[0180] An air supply part 106 and a heat pump or the like can be installed on the base part 105, and the base part 105 can be combined on the lower plate 103 or can be integrally provided with the lower plate 103. That is, the base part 105 can also correspond to the lower plate 103 and form a bottom surface of the cabinet 100.

[0181] The air supply part 106 can include an inflow duct 1061. The inflow duct 1061 can be connected with the front duct 1023 and receive air of the front duct 1023. The inflow duct 1061 and the front duct 1023 can be separately manufactured and combined, or can be integrally formed with each other.

[0182] Air flowing into the inside of the air supply part 106 from the front duct 1023 through the inflow duct 1061 can be dehumidified and heated, and is discharged from the supply part. The air supply part 106 can be internally provided with a part configuration of a heat pump for dehumidifying and heating air, and dehumidification and heating of air will be described in detail in a later-described embodiment.

[0183] Air flowing in through the inflow duct 1061 can flow in the inside of the air supply part 106, and can be discharged through an outflow duct 1064 of the air supply part 106. The air supply part 106 can further include a supply fan part 107 connected with the outflow duct 1064.

[0184] The supply fan part 107 can form a flow of air over the entire above-described circulation flow path by a supply fan 1071 rotated by a supply fan motor 1073, and can discharge air to the outside of the air supply part 106.

[0185] That is, air can flow into the air supply part 106 through the inflow duct 1061 connected with the front duct 1023, air passing through the inside of the air supply part 106 is dehumidified and heated, and the dehumidified and heated air can be discharged to the outside of the air supply part 106 through the outflow duct 1064 and the supply fan part 107.

[0186] On the other hand, the rear plate 110 can include an air flow part 130 for receiving air discharged from the supply fan part 107 and supplying the air to the drum back surface 210. That is, the air supply part 106 can discharge air to the air flow part 130 and supply air to the drum back surface 210 through the air flow part 130.

[0187] The air supply part 106 can further include a fan duct part 1082 connected with the supply fan part 107, and the fan duct part 1082 can connect the supply fan part 107 and the air flow part 130. That is, air discharged through the supply fan part 107 can be supplied to the air flow part 130 via the fan duct part 1082.

[0188] The rear plate 110 can further include an inflow extension 138 extending from the air flow portion 130, and the air supply portion 106 can be connected with the inflow extension 138 to supply air to the air flow portion 130.

[0189] The air supplied from the air supply portion 106 can flow inside the air flow portion 130 and to the drum back 210. The air flow portion 130 can be provided to be open at the front face 131 so that air flows forward, and the air through portion 230 through which air flowing out of the air flow portion 130 can flow in can be provided at the drum back 210. The air through portion 230 can be provided to allow air flowing out of the air flow portion 130 to flow in and pass through to supply the air to the inside of the drum 200.

[0190] Referring to Figure 2 The circulation process of air on the circulation flow path of one embodiment of the present application will be described as follows.

[0191] In the case where the drying course of laundry is performed, the air flowing out of the air flow portion 130 can be supplied to the inside of the drum 200 through the air through portion 230 in the inside of the drum 200.

[0192] The air supplied to the inside of the drum 200 can be hot air which is dehumidified and heated, and the hot air can evaporate moisture of laundry present in the inside of the drum 200 and dry the laundry.

[0193] The air in which humidity is increased in the inside of the drum 200 can be discharged to the outside of the drum 200 through the drum opening, and the air flowing out to the outside of the drum 200 can be supplied to the air supply portion 106 via the front face duct 1023.

[0194] The air supply portion 106 can receive air through the inflow duct 1061 connected with the front face duct 1023, and can dehumidify and heat the air received from the drum 200 using a heat pump or the like.

[0195] The air dehumidified and heated in the air supply portion 106 passes through the air supply portion 107 and flows to the inside of the fan duct portion 1082 through the outflow duct 1064, and the air flow portion 130 supplies the air flowing in through the fan duct portion 1082 to the inside of the drum 200 again through the air through portion 230 of the drum 200.

[0196] The circulation process of air as described above can be continuously performed, whereby low-humidity high-temperature air can be continuously supplied to the inside of the drum 200, and moisture present in laundry can be evaporated by the low-humidity high-temperature air and discharged to the outside of the drum 200 together with the air, so that drying of laundry can be achieved.

[0197] On the other hand, referring to Figure 2The structure of the rear plate 110 and the drum back 210 of an embodiment of the present application will be described as follows.

[0198] The rear plate 110 can include a driving mounting portion 120 and an air flow portion 130. The driving mounting portion 120 can incorporate the driving portion 400, and the shape of the driving mounting portion 120 or the incorporation form of the driving portion 400 can be various.

[0199] For example, as shown in FIG. 1, the driving mounting portion 120 can include a space open to the rear, and at least a portion of the driving portion 400 can be inserted into the inside of the driving mounting portion 120 from the rear of the driving mounting portion 120 and incorporated with the driving mounting portion 120. Figure 2

[0200] The air flow portion 130 can be provided to supply air to the inside of the drum 200 by flowing air to the drum back 210. The shape of the air flow portion 130 or the flowing manner of air can be various.

[0201] For example, the air flow portion 130 can include a flow space 135 for air to flow, and the front surface 131 of the air flow portion 130 can be open so that air of the flow space 135 flows to the drum back 210 through the open front surface 131.

[0202] On the other hand, the drum back 210 can include a driving connection portion 220 and an air passing portion 230. The driving connection portion 220 can be connected with the driving portion 400 incorporated in the driving mounting portion 120 and receive a rotational force from the driving portion 400.

[0203] The shape of the driving connection portion 220 or the form of connection with the driving portion 400 can be various. For example, as shown in FIG. 2, the driving connection portion 220 can be connected with the driving shaft 430 of the driving portion 400 and receive power from the driving shaft 430. Figure 2

[0204] The driving connection portion 220 can be located at a position opposite to the driving mounting portion 120 from the front of the driving mounting portion 120, and can be connected with the driving shaft 430 of the driving portion 400 extending through the driving mounting portion 120.

[0205] Air flowing out of the air flow portion 130 can flow into the air passing portion 230. Air flowing out of the air flow portion 130 can pass through the air passing portion 230 and flow to the inside of the drum 200.

[0206] The shape of the air passing portion 230 or the flowing manner of air can be various. For example, as shown in FIG. 3, the air passing portion 230 can include a space open to the front, and air flowing out of the air flow portion 130 can flow to the inside of the drum 200 through the open space of the air passing portion 230. Figure 2 ​​As shown, the air passing portion 230 can have a shape corresponding to at least a portion of the air flow portion 130, and can be configured to face the air flow portion 130 from the front.

[0207] The air passing portion 230 can include a plurality of air passing holes 234 for passing air, and air flowing out of the open front face 131 of the air flow portion 130 can be supplied to the inside of the drum 200 through the air passing holes 234 of the air passing portion 230.

[0208] In an embodiment of the present application, the rotational shaft of the drum 200 and the driving shaft 430 of the driving portion 400 can be arranged on the same line by the driving portion 400 for rotating the drum 200 being combined with the driving mounting portion 120 of the rear plate 110.

[0209] Accordingly, the driving portion 400 can rotate the drum 200 without using a connecting member such as a belt, and thus, can actively and effectively adjust the rotational speed and the rotational direction of the drum 200 without causing slippage or the like caused by the belt.

[0210] In addition, in an embodiment of the present application, a portion of the rear plate 110 itself can form the air flow portion 130, and thus, the air flow portion 130 can be effectively formed without an additional configuration for forming the air flow portion 130 being attached.

[0211] That is, in the air flow portion 130, the additional configuration is not combined with the rear plate 110, and thus, air leakage from a combined portion between the configurations can be prevented, and the configurations for forming the air flow portion 130 do not need to be combined, thereby being advantageous in a manufacturing process.

[0212] In addition, in an embodiment of the present application, the front face 131 of the air flow portion 130 can be provided in an open form, and thus, the flowability of air flowing from the inside of the air flow portion 130 to the rear face 210 of the drum can be effectively improved.

[0213] On the other hand, Figure 3 An example in which the laundry treating apparatus 10 according to an embodiment of the present application is disassembled is shown. Referring to FIG. 1, the laundry treating apparatus 10 according to an embodiment of the present application can include a cabinet 100, a drum 200, a driving portion 400, and a rear plate 110. Figure 3 The laundry treating apparatus 10 according to an embodiment of the present application can include the following configurations.

[0214] The front plate 102 can be provided at the front side of the cabinet 100 and form the front side appearance of the cabinet 100, and can include a laundry opening 1021 through which laundry can be put into the inside of the cabinet 100.

[0215] A drum 200 can be disposed behind the front plate 102, can rotate about a rotation shaft parallel to the front-rear direction, and a front surface of the drum 200 can be open and form a drum opening through which laundry put through the laundry opening 1021 can be put into the inside of the drum 200.

[0216] The drum 200 can include an opening peripheral portion surrounding the drum opening, a drum peripheral surface 290 surrounding the inside of the drum 200 at a rear side of the opening peripheral portion, and a drum back surface 210 combined with the drum peripheral surface 290 at a rear of the drum peripheral surface 290.

[0217] A rear plate 110 can be provided behind the drum 200. The rear plate 110 can be located at a rear side of the cabinet 100 and form at least a part of a rear side appearance of the cabinet 100.

[0218] The rear plate 110 can include an air flow portion 130 for providing air to the inside of the drum 200, and a rear seal 300 surrounding the air flow portion 130 and for preventing or inhibiting leakage of air can be disposed between the rear plate 110 and the drum back surface 210.

[0219] In an embodiment of the present application, the air flow portion 130 can be substantially ring-shaped, and the rear seal 300 can include an inner seal 310 and an outer seal 320.

[0220] The inner seal 310 can surround an inner periphery of the air flow portion 130 and inhibit leakage of air to the outside of the air passage portion 230, and the outer seal 320 can surround an outer periphery of the air flow portion 130 and inhibit leakage of air to the outside of the air passage portion 230.

[0221] On the other hand, the rear plate 110 can include a drive mounting portion 120 for mounting a drive portion 400, a mounting bracket 126 can be combined to the drive mounting portion 120 from the front, and the drive portion 400 can be combined to the drive mounting portion 120 from the rear.

[0222] The mounting bracket 126 can be combined to a front surface of the drive mounting portion 120 to reinforce rigidity of the drive mounting portion 120 for combining the drive portion 400, and can enhance a combining force of the drive portion 400 and inhibit vibration or the like that can be generated from the drive portion 400.

[0223] In the case where the driving part 400 is coupled to the rear plate 110 and directly connected to the drum 200, it is important to stably fix the driving part 400 and align the driving shaft 430 of the driving part 400 and the rotation shaft of the drum 200, and thus, in an embodiment of the present application, a mounting bracket 126 can be coupled to the front surface of the driving mounting part 120 to reinforce the driving mounting part 120 and strengthen the coupling force of the driving part 400.

[0224] The driving part 400 coupled to the rear of the driving mounting part 120 can also form a coupling relationship with the driving mounting part 120 and the mounting bracket 126. That is, the mounting bracket 126, the driving mounting part 120, and the mounting bracket 126 can form a fastening relationship with each other.

[0225] The driving shaft 430 of the driving part 400 can pass through the driving mounting part 120 and be connected to the driving connection part 220 of the drum back surface 210. The driving part 400 can include a first driving part 410 coupled to the driving mounting part 120, and a second driving part 420 coupled and fixed to the first driving part 410, and the driving shaft 430 can extend forward from the first driving part 410.

[0226] On the other hand, a rear cover 500 can be disposed at the rear of the rear plate 110. The rear cover 500 can be provided to cover at least a portion of the rear plate 110 from the rear, and can be coupled to the rear plate 110.

[0227] The rear cover 500 can form the entire rear surface of the laundry treating apparatus 10 of an embodiment of the present application, or can also allow a portion of the rear plate 110 to be exposed to the rear and form the rear surface of the laundry treating apparatus 10 together with the rear plate 110.

[0228] On the other hand, in an embodiment of the present application, at least a portion of the air flow part 130 of the rear plate 110 or the driving part 400 can be exposed to the rear from the rear plate 110, and the rear cover 500 can be coupled to the rear surface of the rear plate 110 and shield the air flow part 130 and the driving part 400 from the outside.

[0229] Thus, in an embodiment of the present application, heat loss of air due to heat transfer from the air flow part 130 to the outside through the rear cover 500 can be suppressed, and the air flow part 130 can be protected from the outside. In addition, the driving part 400 can be shielded from the outside by the rear cover 500, and the driving part 400 can be protected from an impact or foreign matter that can be transferred from the outside.

[0230] On the other hand, the base part 105 can be disposed below the drum 200 inside the cabinet 100, and the air supply part 106 and a heat pump or the like described above can be provided in the base part 105.

[0231] The air supply part 106 can dehumidify and heat the air discharged from the drum 200 and supply it again to the inside of the drum 200 through the air flow part 130, and at least a part of the heat pump can be disposed inside the air supply part 106 and can be provided to dehumidify and heat the air flowing through the air supply part 106.

[0232] On the other hand, Figure 4 The case in which the air supply part 106 of the base part 105 and the air flow part 130 of the rear plate 110 are connected is shown, Figure 5 The inside cross section of the air supply part 106 is shown.

[0233] Referring to Figure 4 and Figure 5 The air supply part 106 and the heat pump of an embodiment of the present application are specifically described as follows.

[0234] Figure 4 The base part 105 of an embodiment of the present application disposed at the lower portion of the cabinet 100 is shown, and the inflow duct 1061 connected with the front surface duct 1023 of the front plate 102 at the air supply part 106 is shown.

[0235] At least a part of the inflow duct 1061 can be inserted into the inside of the front plate 102, or can be connected with the front surface duct 1023 outside the front plate 102. The inflow duct 1061 can be integrally provided with the front surface duct 1023, or can be separately manufactured and combined with each other.

[0236] The air supply part 106 can be disposed on the base part 105 and can have a form extending in the front-rear direction. That is, the air supply part 106 can extend from the front plate 102 to the rear plate 110 in consideration of the characteristics of the circulation flow path.

[0237] The air supply part 106 can be positioned at a side of the base part 105 located close to one side in the lateral direction of the cabinet 100. For example, the air supply part 106 can be disposed adjacent to the first side panel 109 located at one side in the lateral direction of the cabinet 100. The air supply part 106 can be in close contact with the first side panel 109.

[0238] In an embodiment of the present application, the air supply part 106 is disposed close to one side in the lateral direction, whereby even if the overall height of the cabinet 100 is not increased, structural interference with the lowermost end of the drum 200 can be avoided, and the space inside the cabinet 100 can be effectively utilized.

[0239] The air flowing into the air supply portion 106 can flow from the front side of the cabinet 100 to the rear side in the extension direction of the air supply portion 106. That is, the air of the air supply portion 106 can flow from the front plate 102 side to the rear plate 110 side, and can flow from the front face duct 1023 to the air flow portion 130.

[0240] The air supply portion 106 can be provided with an outflow duct 1064 on the rear side facing the rear plate 110, and the outflow duct 1064 can be connected with the blow portion 107. The shape of the outflow duct 1064 and the connection form with the blow portion 107 can be various.

[0241] The blow portion 107 can include a blow fan housing in which a blow fan 1071 is built, and a blow motor 1073 connected with the blow fan 1071 and providing a rotational force. The blow fan housing can be provided in various shapes, and the blow motor 1073 can be combined with the blow fan housing and located at the rear of the blow fan housing.

[0242] The motor shaft of the blow motor 1073 can be parallel with the rotational shaft of the blow fan 1071, and can be located at the center of the cross section of the air flow path formed in the inside of the air supply portion 106. The blow fan 1071 can form a flow circulating the air of the laundry treatment apparatus 10 of an embodiment of the disclosure.

[0243] In an embodiment of the disclosure, the blow motor 1073 can be inserted from the front of the rear plate 110 and fixed in the inside of the rear plate 110. Thereby, the rear plate 110 can be provided with a plurality of power generators generating a rotational force, such as the drive portion 400 and the blow motor 1073. For example, in an embodiment of the disclosure, the rear plate 110 can be simultaneously provided with the drive portion 400 and the blow motor 1073.

[0244] On the other hand, one side of the blow portion 107 can be connected with the outflow duct 1064, and the other side thereof can be connected with the fan duct portion 1082. The blow portion 107 can flow the air of the air supply portion 106 to the inside of the fan duct portion 1082 by the blow fan 1071.

[0245] The fan duct portion 1082 can connect the blow portion 107 and the air flow portion 130. The air flow portion 130 can be disposed at the rear of the drum back 210, and the blow portion 107 can be located at a position more toward the lower side than the drum 200, and thus the fan duct portion 1082 can extend from the blow portion 107 substantially upward and be connected with the air flow portion 130.

[0246] On the other hand, the rear plate 110 can include an inflow extension 138 extending from the air flow portion 130, and the inflow extension 138 can include an extension space 1381 extending from the flow space 135 formed in the inside of the air flow portion 130.

[0247] The inflow extension 138 can extend on the rear plate 110 from the air flow portion 130 toward the air supply portion 106. The inflow extension 138 can be open to the front such that at least a portion of the air supply portion 107 is inserted into the extension space 1381.

[0248] For example, at least a portion of the fan duct portion 1082 and at least a portion of the air supply portion 107 can be located within the extension space 1381. In an embodiment of the present application, at least a portion of the fan duct portion 1082 and the air supply motor 1073 can be inserted into the inside of the extension space 1381.

[0249] On the other hand, Figure 4 An air flow portion 130 including a flow space 135 open to the front is shown in an embodiment of the present application, and a driving mounting portion 120 can be provided at the center side of the air flow portion 130 provided in a ring shape.

[0250] In the present application, a ring shape can mean a closed curve continuously extending, and can also mean a ring shape in which a closed section is formed in the inside. In the present application, a ring shape can be a circle and a shape corresponding to the circumference of a polygon.

[0251] The driving mounting portion 120 can be provided to be penetrated by a driving portion 400 coupled from the rear. The driving portion 400 can include a driving shaft 430 and a bearing extension 440 surrounding the driving shaft 430, and the driving shaft 430 and the bearing extension 440 can extend in a manner to penetrate the driving mounting portion 120 together. The driving mounting portion 120 and the air flow portion 130 will be described in detail later.

[0252] On the other hand, Figure 4 A heat pump provided in the base portion 105 is shown. The heat pump can include a plurality of heat exchangers and a compressor 1066, and can be provided such that a fluid compressed by the compressor 1066 is heat-exchanged with the outside via the plurality of heat exchangers.

[0253] Specifically, the heat pump can include a first heat exchanger 1062, a second heat exchanger 1063, and a compressor 1066. The heat pump can include a fluid circulating in the first heat exchanger 1062, the second heat exchanger 1063, and the compressor 1066.

[0254] Figure 5The first heat exchanger 1062 and the second heat exchanger 1063 of the heat pump built in the air supply part 106 are schematically shown, Figure 4 The compressor 1066 is shown outside the air supply part 106.

[0255] The first heat exchanger 1062 can correspond to an evaporator that absorbs heat from the outside of the fluid, and the second heat exchanger 1063 can correspond to a condenser that discharges heat to the outside of the fluid.

[0256] The first heat exchanger 1062 and the second heat exchanger 1063 can be disposed on a flow path through which air flows in the air supply part 106, and can be configured to dehumidify and heat the air. The first heat exchanger 1062 can remove moisture present in the air by condensing the moisture in the air by cooling the air, and the second heat exchanger 1063 can heat the air by supplying heat discharged from the fluid to the air.

[0257] On the other hand, the first heat exchanger 1062 can be located on the upstream side of the second heat exchanger 1063 on the air flow path of the air supply part 106. That is, the first heat exchanger 1062 can be located in front of the second heat exchanger 1063, and the first heat exchanger 1062 can be located opposite the inflow duct 1061.

[0258] Air flowing in through the inflow duct 1061 can flow through the first heat exchanger 1062. Air flowing in through the inflow duct 1061, which is discharged from the inside of the drum 200, can contain a large amount of moisture evaporated from the laundry.

[0259] Air flowing in through the inflow duct 1061 passes through the first heat exchanger 1062, and the water vapor in the air, from which heat is absorbed by the first heat exchanger 1062, can be condensed into the form of water droplets at the first heat exchanger 1062 and removed from the air.

[0260] The air supply part 106 can transfer the condensed water condensed at the first heat exchanger 1062 to the water collecting part 1065 disposed outside the air supply part 106. That is, the water collecting part 1065 can be provided to store the condensed water generated at the first heat exchanger 1062 of the air supply part 106.

[0261] On the other hand, the second heat exchanger 1063 can be located on the downstream side of the first heat exchanger 1062 closer to the air supply part 106. That is, the second heat exchanger 1063 can be located behind the first heat exchanger 1062, and can be disposed opposite the air supply part 107 or the outflow duct 1064.

[0262] The second heat exchanger 1063 can correspond to a condenser discharging heat of fluid to the outside, and air passing through the second heat exchanger 1063 can be heated by the second heat exchanger 1063 and flow to the air supply part 107.

[0263] In an embodiment of the present application, since the second heat exchanger 1063 is located at the downstream side of the first heat exchanger 1062, air dehumidified by being cooled by the first heat exchanger 1062 can be discharged from the air supply part 106 in a state of being heated again by the second heat exchanger 1063.

[0264] Figure 5 An air supply fan 1071 discharging air passing through the second heat exchanger 1063 to the outside of the air supply part 107 is shown, and an air supply motor 1073 connected to the air supply fan 1071 at the rear of the air supply fan 1071 is shown. At least a part of the air supply fan 1071 and the air supply motor 1073 can be disposed in the extension space 1381 of the inflow extension part 138 described above.

[0265] Referring again to Figure 4 , a water collecting part 1065 for storing condensed water removed from air by the first heat exchanger 1062 in an embodiment of the present application is shown. As described above, the air supply part 106 can be located at one side in the side direction of the base part 105, and the water collecting part 1065 and the compressor 1066 can be disposed at the other side in the side direction of the base part 105.

[0266] In an embodiment of the present application, the driving part 400 for rotating the drum 200 is disposed at the rear plate 110, and thus, compared to a case in which the driving part 400 is disposed on the base part 105, it is possible to effectively secure a space on the base part 105 and to effectively increase the size and capacity of the water collecting part 1065.

[0267] On the other hand, the compressor 1066 is located at the rear of the water collecting part 1065, and thus, it is possible to minimize transmission of noise and vibration generated by operation of the compressor 1066 to a user using the laundry treatment apparatus 10 in front of the laundry treatment apparatus 10.

[0268] On the other hand, Figure 6 A drum 200 located at the rear plate 110 and in front of the rear plate 110 in an embodiment of the present application is shown, Figure 7 A case in which the inside of the drum 200 is viewed from the front is shown.

[0269] Referring to Figure 6 In an embodiment of the present application, the drum 200 is located in front of the rear plate 110, and air flowing from the air flow part 130 of the rear plate 110 can be supplied to the inside of the drum 200 via the drum back surface 210.

[0270] A front side of the drum 200 can be formed with a drum opening, and the drum 200 can include an opening peripheral portion surrounding the drum opening, and the opening peripheral portion can be supported by the front panel 102.

[0271] A drum peripheral surface 290 surrounding an inside of the drum 200 can be provided at a rear of the opening peripheral portion. The drum peripheral surface 290 can be formed in a cylindrical shape extending in a circumferential direction of the drum 200, and a front end of the drum peripheral surface 290 can be combined with the opening peripheral portion, or the opening peripheral portion can be integrally provided with the front end.

[0272] An inside space of the drum 200 surrounded by the drum peripheral surface 290 can accommodate laundry put through the laundry opening 1021 of the front panel 102.

[0273] On the other hand, a drum back surface 210 can be provided at a rear of the drum peripheral surface 290, and the drum back surface 210 can be integrally formed with the drum peripheral surface 290 or can be separately manufactured and combined with the drum peripheral surface 290.

[0274] The drum back surface 210 can be provided to shield the inside space of the drum 200 from the rear. The drum back surface 210 includes an air passing portion 230 through which air flowing from the air flow portion 130 flows toward the inside of the drum 200, and the drum back surface 210 can include a driving connection portion 220 connected with the driving portion 400.

[0275] On the other hand, referring to Figure 7 A laundry lifting rib 280 for agitation or lifting can be provided in the inside of the drum 200. The laundry lifting rib 280 can be provided on an inner side surface of the drum peripheral surface 290 facing the inside of the drum 200.

[0276] The drum 200 can extend in a front-rear direction of the cabinet 100, and the laundry lifting rib 280 can extend substantially in parallel with a length direction of the extension of the drum 200. The laundry lifting rib 280 can be provided in plural, and can be arranged spaced apart in a circumferential direction of the drum 200.

[0277] In an embodiment of the present application, when the drum 200 rotates, a moving amount of laundry accommodated in the inside of the drum 200 is increased by the laundry lifting rib 280, and it is possible to effectively improve a drying efficiency of the laundry.

[0278] A protrusion and / or a recess can be formed in the drum peripheral surface 290 to be able to increase a frictional force with the laundry. The protrusion or the recess can be provided in plural, and can be distributed over the entire drum peripheral surface 290.

[0279] The air passing portion 230 can be provided in a ring shape, and can be located between the circumferential connecting portion 240 of the drum back 210 and the driving connecting portion 220. The air passing portion 230 can include a plurality of air passing holes 234, and can be provided with an air passing portion 232 corresponding to a region including the air passing holes 234. The air passing portion 232 can be provided in a plurality, and can be spaced apart along the circumferential direction of the drum back 210.

[0280] A reinforcing rib 236 for securing the rigidity of the air passing portion 230 in which the air passing portion 232 is formed can be provided in the drum back 210. The reinforcing rib 236 can be provided in a convex shape when viewed from the front, and can include a back reinforcing rib 2362, an inner side reinforcing rib 2364, and an outer side reinforcing rib 2366.

[0281] The back reinforcing rib 2362 can be disposed between the plurality of air passing portions 232 and extend in the radial direction of the drum back 210. The inner side reinforcing rib 2364 can be located between the air passing portion 232 and the driving connecting portion 220. The outer side reinforcing rib 2366 can be located between the air passing portion 232 and the circumferential connecting portion 240 of the drum back 210.

[0282] The inner side reinforcing rib 2364 can be provided in a ring shape, and extend along the circumferential edge of the driving connecting portion 220 or the inner side circumferential edge of the air passing portion 230 facing the driving connecting portion 220. The outer side reinforcing rib 2366 can be provided in a ring shape, and extend along the circumferential connecting portion 240 or the outer side circumferential edge of the air passing portion 230 facing the circumferential connecting portion 240.

[0283] On the other hand, when viewed from the inside of the drum 200, the air passing portion 230 can be provided in a form of being recessed toward the rear, and the driving connecting portion 220 can be provided in a shape of being convex toward the inside of the drum 200.

[0284] At least a portion of the driving shaft 430 can pass through the driving connecting portion 220, and can be connected with the driving shaft 430, and a shaft cap portion 260 that shields the driving shaft 430 inside the drum 200 can be provided in front of the driving connecting portion 220.

[0285] There can be high-temperature air supplied from the air flow portion 130 inside the drum 200, and heat transfer of the inside of the drum 200 to the driving shaft 430 and the driving portion 400 can be disadvantageous for heat damage to the periphery of the driving portion 400 and the operation efficiency of the driving portion 400.

[0286] Therefore, in an embodiment of the present application, the driving connecting portion 220 can be disposed to overlap the driving portion 400 in front of the driving portion 400, so that heat transfer from the air inside the drum 200 to the driving portion 400 can be suppressed.

[0287] In addition, the inner side periphery of the air passing portion 230 can be positioned outside the driving portion 400 with reference to the radial direction of the drum 200, and thus air passing through the air passing portion 230 can flow in front of the driving portion 400, and heat transfer to the driving portion 400 can be suppressed.

[0288] In addition, the shaft cap portion 260, which is disposed inside the drum 200 in front of the driving connection portion 220, can shield the driving shaft 430 from the inside of the drum 200, and thus heat transfer of air to the driving shaft 430 can be suppressed, and heat transfer from the inside of the drum 200 to the driving portion 400 side together with the driving connection portion 220 can be suppressed.

[0289] On the other hand, Figure 8 The air passing portion 230 of an embodiment of the present application is shown, Figure 9 A case in which the rear surface 210 of the drum is viewed from the rear is shown, Figure 10 A case in which a cross section of the rear surface 210 of the drum is shown.

[0290] Hereinafter, an embodiment of the present application will be described with reference to Figure 8 to Figure 10 The rear surface 210 of the drum 200 of an embodiment of the present application will be described in detail.

[0291] Referring to Figure 8 In an embodiment of the present application, the air passing portion 230 can be formed to protrude rearward from the rear surface 210 of the drum, the air passing portion 232 can be formed to protrude rearward from the air passing portion 230, and the driving connection portion 220 can be disposed to protrude forward from the rear surface 210 of the drum.

[0292] When the rear surface 210 of the drum is viewed from the front, the air passing portion 230 can be provided in a form of being recessed rearward from the front surface of the rear surface 210 of the drum, and the air passing portion 232 can be provided in a form of being recessed rearward from the front surface 131 of the air passing portion 230.

[0293] In an embodiment of the present application, the air passing portion 230 is formed to protrude rearward from the rear surface 210 of the drum, and thus the internal space of the drum 200 can be effectively increased, and as described below, the distance from the open front surface 131 of the air flow portion 130 can be effectively reduced, and thus it can be advantageous to receive air from the air flow portion 130.

[0294] In addition, the air passing portion 232 can protrude rearward from the air passing portion 230 and be positioned closer to the open front surface 131 of the air flow portion 130, and thus it can be provided to be advantageous to the inflow of air from the air flow portion 130.

[0295] Figure 9A case where the space formed by the air passing portion 230 protruding rearward from the drum back surface 210, the ventilation portion 232 protruding rearward from the air passing portion 230, and the driving connection portion 220 recessed forward from the drum back surface 210 is shown.

[0296] On the other hand, as described above, the air passing portion 230 can include the reinforcing rib 236, which can be configured to surround the ventilation portion 232 to reinforce rigidity of the air passing portion 230.

[0297] In relation to the ventilation portion 232, the reinforcing rib 236 can have a shape protruding forward. That is, in relative relation to the ventilation portion 232, the reinforcing rib 236 can be formed to protrude forward. The reinforcing rib 236 can be provided in a form protruding forward in relation to the ventilation portion 232 formed to be recessed rearward from the air passing portion 230, or can be provided in a form protruding forward from the air passing portion 230 regardless of the ventilation portion 232.

[0298] On the other hand, as described above, the reinforcing rib 236 can include the inside reinforcing rib 2364, the back surface reinforcing rib 2362, and the outside reinforcing rib 2366, and the plurality of ventilation portions 232 provided to the air passing portion 230 can be configured to be surrounded by the inside reinforcing rib 2364, the back surface reinforcing rib 2362, and the outside reinforcing rib 2366, respectively.

[0299] Figure 8 A case where the inside reinforcing rib 2364, the back surface reinforcing rib 2362, and the outside reinforcing rib 2366 are connected together and surround the ventilation portion 232 is shown. However, the form of the reinforcing rib 236 is not necessarily limited thereto, and the protrusion height, the configuration relation, and the connection relation can be changed as needed.

[0300] On the other hand, hereinafter, a structure of the drum back surface 210 will be described with reference to Figure 10 The structure of the drum back surface 210 will be described in detail.

[0301] As described above, the drum back surface 210 can include the peripheral edge connection portion 240 connected to the drum peripheral surface 290, and the air passing portion 230 can extend rearward from the peripheral edge connection portion 240. That is, the air passing portion 230 can be positioned more rearward than the peripheral edge connection portion 240.

[0302] The air passing portion 230 can include a passing outer peripheral surface 238 extending rearward from the peripheral edge connection portion 240 and extending in the circumferential direction of the drum 200, and can include an air passing surface 239 connected to a rear side of the passing outer peripheral surface 238.

[0303] The outer circumferential surface 238 can extend from the peripheral connecting portion 240 toward the rear plate 110, and as described below, at least a portion of the outer circumferential surface 238 can be inserted into the inside of the rear plate 110. At least a portion of the air passing surface 239 can be open to the front surface 131 of the air flow portion 130, and can receive air from the air flow portion 130.

[0304] The air passing surface 239 can be positioned more rearward than the drum peripheral portion, to shield the open front surface 131 of the air flow portion 130. The outer circumferential surface 238 and the air passing surface 239 can be integrally formed by extending from the peripheral connecting portion 240.

[0305] The air passing portion 230 can be formed by bending or curving a portion of the drum rear surface 210 to protrude rearward. For example, the drum rear surface 210 can be formed to protrude rearward on the peripheral side by a press process or the like, so that the air passing portion 230 can be formed.

[0306] In an embodiment of the present application, since the air passing portion 230 is provided as a portion of the drum rear surface 210, the air passing portion 230 does not need to be separately manufactured, so that it is advantageous in the manufacturing process, and since there is no joint line through which air can leak from the air passing portion 230, it is advantageous in terms of air tightness.

[0307] On the other hand, the air passage portion 232 can protrude rearward from the air passing surface 239 when viewed from the rear, and can be recessed rearward from the air passing surface 239 when viewed from the front. The air passage portion 232 can be positioned closer to the flow recessed surface 132 than the air passing surface 239, so that it can be advantageous for air flowing through the flow space 135 of the air flow portion 130 to flow into the air passage portion 232.

[0308] The air passage portion 232 can be formed by bending or curving at least a portion of the air passing surface 239 to protrude rearward. That is, the air passage portion 232 is integrally formed with the air passing surface 239, so that it is advantageous in the manufacturing process, and can be advantageous since there is no joint line.

[0309] On the other hand, as described above, the air passing portion 230 can be provided in a ring shape and protrude rearward from the drum rear surface 210, so that it can include an outer circumferential surface and an inner circumferential surface that protrude rearward from the drum rear surface 210.

[0310] The air passing portion 230 can be formed of the outer circumferential surface 238 described above, and can be formed of the inner circumferential surface of the connection side surface portion 226 of the driving connection portion 220. That is, the inner circumferential surface of the air passing surface 239 can be connected to the connection side surface portion 226 of the driving connection portion 220.

[0311] The connection side surface portion 226 of the driving connection portion 220 can extend from the inner side periphery of the air passing surface 239 to the front, and can extend along the periphery of the driving connection portion 220. That is, the connection side surface portion 226 can form the inner periphery surface of the air passing portion 230, and can be provided in a ring shape to surround the space inside the driving connection portion 220.

[0312] The connection front surface portion 222 can be connected to the front side of the connection side surface portion 226. The connection front surface portion 222 and the air passing surface 239 can be provided in a flat plate shape, and can be provided in parallel to each other. However, the specific shape of the connection front surface portion 222 and the air passing surface 239 can be changed as needed.

[0313] The driving connection portion 220 can be formed by protruding from the air passing portion 230 to the front. The driving connection portion 220 can be formed by bending or curving the central side of the drum back surface 210. The driving connection portion 220, the air passing portion 230, and the periphery connection portion 240 can be integrally provided.

[0314] On the other hand, the driving connection portion 220 can extend from the air passing surface 239 to the front, and thus the connection side surface portion 226 of the driving connection portion 220 can form the inner periphery surface of the air passing portion 230, and the connection front surface portion 222 of the driving connection portion 220 can be located at a position relatively more rearward than the periphery connection portion 240.

[0315] In an embodiment of the present application, the air passing portion 230 is formed by protruding from the drum back surface 210 to the rear, thereby being able to effectively increase the internal capacity of the drum 200 in the limited internal space of the cabinet 100.

[0316] In addition, the driving connection portion 220 is formed by protruding to the front, thereby effectively reducing the length of the driving portion 400 protruding to the rear from the drum back surface 210, and thus being able to implement a compact combined structure.

[0317] On the other hand, Figure 11 A case in which the drum back surface 210, the rear plate 110, and the driving portion 400 are arranged is shown, Figure 12 A case in which the plurality of components combined with the rear plate 110 are disassembled is shown.

[0318] Hereinafter, each component related to the rear plate 110 will be described with reference to Figure 11 and Figure 12 with the rear plate 110 as the center.

[0319] The drum back surface 210 is located in front of the rear plate 110, whereby the open front surface 131 of the air flow portion can be shielded from the front by the air passing portion 230 of the drum back surface 210. In addition, the driving portion 400 can be coupled to the rear plate 110 from the rear of the driving mounting portion 120, and the driving shaft 430 of the driving portion 400 can be aligned with the rotation shaft of the drum 200.

[0320] That is, the driving portion 400 can be coupled to the rear plate 110 from the rear of the driving mounting portion 120, and the air flow portion 130 can be shielded from the front by the air passing portion 230. The driving portion 400 can be connected to the driving connection portion 220 of the drum back surface 210 through the driving mounting portion 120.

[0321] On the other hand, the rear seal 300 described above can be provided between the drum back surface 210 and the rear plate 110, and the rear seal 300 can include an inner seal surrounding the inner periphery of the air flow portion 130 and an outer seal 320 surrounding the outer periphery of the air flow portion 130.

[0322] The rear plate 110 can be connected to the air supply portion 106, and the air supply portion 106 can include a fan duct portion 1082 connecting the air supply portion 107 and the air flow portion 130. The rear plate 110 can include an inflow extension portion 138 extending from the air flow portion 130, and the fan duct portion 1082 can be connected to the air flow portion 130 through the inflow extension portion 138.

[0323] The mounting bracket 126 can be coupled to the driving mounting portion 120 of the rear plate 110 from the front while the driving portion 400 is coupled to the driving mounting portion 120 of the rear plate 110 from the rear.

[0324] The driving mounting portion 120 can include a mounting side surface portion 124 extending in a ring shape and a mounting front surface portion 122 connected to the front side of the mounting side surface portion 124 to shield the driving portion 400 from the front. A bracket seating portion 128 for coupling the mounting bracket 126 can be provided on the front surface of the mounting front surface portion 122.

[0325] The mounting bracket 126 is provided on the front side of the driving mounting portion 120 and forms a coupling relationship with the driving portion 400 through the driving mounting portion 120, thereby being able to increase the rigidity of the driving mounting portion 120 while effectively improving the coupling stability of the driving portion 400.

[0326] On the other hand, the rear cover 500 can be coupled to the rear plate 110 from the rear. The rear surface of the rear plate 110 can be protruded rearward from the air flow portion 130, and the driving portion 400 can be exposed rearward, and thus the rear cover 500 can be coupled to the rear side of the rear plate 110 to shield the air flow portion 130 and the driving portion 400 from the outside.

[0327] In another aspect, Figure 13 A case in which a front surface of the rear plate 110 according to an embodiment of the present application is shown, Figure 14 A case in which a rear surface of the rear plate 110 is shown, Figure 15 A case in which a cross section of the rear plate 110 viewed from a side direction is shown.

[0328] Hereinafter, a detailed description will be given of the present application with reference to the accompanying drawings. Figure 13 to Figure 15 The rear plate 110 will be described in detail, and before the description of the rear plate 110, the respective components provided in an embodiment of the present application are summarized as follows.

[0329] The drum 200 can be provided in the inside of the cabinet 100 in a rotatable manner, laundry is accommodated in the inside of the drum 200, and a drum rear surface 210 facing the rear plate 110 can be provided at the rear side of the drum 200. The driving part 400 can be combined with the rear plate 110 and connected with the drum 200.

[0330] The rear plate 110 can include a driving mounting part 120 and an air flow part 130, the driving part 400 can be combined with the driving mounting part 120, the air flow part 130 can surround the driving mounting part 120, and air can be supplied to the drum 200.

[0331] The drum rear surface 210 includes a driving connection part 220 and an air passing part 230, the driving connection part 220 is opposite to the driving mounting part 120 and can be connected with the driving part 400, and the air passing part 230 surrounds the driving connection part 220 and can pass and flow the air supplied from the air flow part 130 into the inside of the drum 200.

[0332] On the other hand, in an embodiment of the present application, the air flow part 130 can be protruded rearward from the rear plate 110 to form a flow space 135 in which air flows in the inside thereof, the flow space 135 can be opened toward the front and be shielded by the air passing part 230.

[0333] Figure 16 A cross section of the rear plate 110 according to an embodiment of the present application and the drum 200 located in front of the rear plate 110 are shown, Figure 17 An enlarged view of Figure 16 The air flow part 130 in which the front surface 131 is shielded by the air passing part 230.

[0334] In an embodiment of the present invention, the air flow portion 130 can be provided on the rear plate 110 to blow air to the drum back surface 210, and can be formed to protrude rearward from the rear plate 110. The inside of the air flow portion 130 can be formed with a flow space 135 for air flow, and the flow space 135 can be exposed to the front by the open front surface 131.

[0335] The air flowing through the flow space 135 can flow out to the front through the open front surface 131 of the air flow portion 130, and the drum back surface 210 can transfer the air to the inside of the drum 200 through the air passing portion 230.

[0336] In an embodiment of the present invention, the air flow portion 130 can form the flow space 135 at the rear side of the rear plate 110 by being formed to protrude rearward, and thus, can effectively secure a space for increasing the capacity of the drum 200 between the rear plate 110 and the drum back surface 210.

[0337] Further, in an embodiment of the present invention, by providing the air flow portion 130 to be open at the front surface 131, the flow resistance of the air flowing from the flow space 135 to the drum back surface 210 is effectively reduced, and the flowability is improved, and thus, the air can be effectively supplied to the inside of the drum 200.

[0338] For example, in the case where the front surface 131 of the air flow portion 130 is provided to have a plurality of holes, such as a grill surface, the air of the flow space 135 can flow out to the front through the holes of the grill surface, but the flow resistance can be generated due to the grill, and thus, the flow rate or the flow speed of the air to the drum back surface 210 can be reduced.

[0339] Further, in order to form the grill surface, a punching process for forming the plurality of holes or a bonding process of the grill surface is involved, and thus, the manufacturing of the rear plate 110 is not advantageous.

[0340] However, in an embodiment of the present invention, since the front surface 131 of the air flow portion 130 is provided to be open as a whole, the flow resistance of the air flowing out to the front from the flow space 135 can be improved, and the effective supply of the air to the drum back surface 210 can be achieved.

[0341] Further, in an embodiment of the present invention, the open front surface 131 of the air flow portion 130 is directly shielded by the air passing portion 230 receiving the air, and thus, the distance between the flow space 135 and the air passing portion 230 can be minimized, and an effective air transfer structure can be achieved.

[0342] On the other hand, in an embodiment of the present application, the air flow portion 130 can be bent or curved from the rear plate 110. The front surface 131 of the air flow portion 130, which faces the air passing portion 230, is open so that the air flow portion 130 directly faces the air passing portion 230, and air can be supplied.

[0343] Figure 13 FIG. 6 illustrates a case where a portion of the rear plate 110 is bent or curved to form the air flow portion 130, according to an embodiment of the present application.

[0344] In an embodiment of the present application, the air flow portion 130 can be integrally formed with the rear plate 110. For example, at least a portion of the rear plate 110 can be bent or curved by a press process or the like to form the air flow portion 130.

[0345] The air flow portion 130 can be formed so as to protrude rearward from the rear plate 110, and thus the rear plate 110 can be bent or curved so that a portion of the rear plate 110 protrudes more rearward than the remaining portion to form the air flow portion 130.

[0346] When viewed from the front of the rear plate 110, the air flow portion 130 can be recessed rearward and have a flow space 135 formed therein, and when viewed from the rear of the rear plate 110, the air flow portion 130 can be provided in a form that protrudes rearward from the rear plate 110.

[0347] In an embodiment of the present application, since the air flow portion 130 is formed as a portion of the rear plate 110, a separate member for forming the air flow portion 130 is not required to be coupled to the rear plate 110, and thus manufacturing is facilitated.

[0348] In addition, since there is no coupling line between the air flow portion 130 and the rear plate 110, leakage of air flowing through the flow space 135 can be effectively prevented. In the present application, the coupling line refers to a boundary region formed by coupling different components to each other.

[0349] On the other hand, in an embodiment of the present application, the driving portion 400 can be coupled to the driving mounting portion 120 from the rear of the driving mounting portion 120, and the air flow portion 130 can be provided in a ring shape to surround the driving portion 400.

[0350] Figure 14 FIG. 6 illustrates a case where a portion of the rear plate 110 is bent or curved to form the air flow portion 130, according to an embodiment of the present application. Figure 16 FIG. 7 illustrates a cross-sectional view of the driving portion 400 coupled to the driving mounting portion 120 from the rear of the driving mounting portion 120.

[0351] The drive unit 400 can be coupled to the drive mounting unit 120 from the rear of the rear plate 110. That is, the drive unit 400 can be coupled to the back side of the drive mounting unit 120. The back side of the drive mounting unit 120 can be recessed forward to form a space inside the drive mounting unit 120, into which the drive unit 400 can be inserted and coupled to the drive mounting unit 120.

[0352] At least a portion of the drive portion 400, which is attached to the rear of the drive mounting portion 120, can protrude rearward and be exposed to external impacts. In one embodiment of the invention, an airflow portion 130 is formed by protruding rearward from the rear plate 110 and is configured to surround the drive portion 400, thereby protecting the drive portion 400 from external impacts.

[0353] On the other hand, in one embodiment of the present invention, the rear plate 110 may include a rear protrusion 140, which protrudes rearward to form a space therein, and the airflow portion 130 may protrude rearward from the rear protrusion 140.

[0354] The air passage 230 can protrude rearward from the back side 210 of the roller and insert into the interior of the rear protrusion 140, and can shield the open front side 131 of the air passage 130.

[0355] Figure 13 to Figure 17 A rear protrusion 140, which protrudes rearward from the rear plate 110 according to an embodiment of the present invention, is shown. Figure 16 and Figure 17 An air passage 230 is shown inserted into the interior of the rear protrusion 140.

[0356] Specifically, the rear protrusion 140 can be formed by protruding rearward from the rear plate 110, and a space can be formed in front of the rear protrusion 140. The rear protrusion 140 can be formed by bending or flexing a portion of the rear plate 110.

[0357] The airflow section 130 can be formed by protruding rearward from the rear protrusion 140. Therefore, through the rear protrusion 140 and the airflow section 130, the front side of the rear plate 110 can be recessed rearward to form a space, and the back side of the rear plate 110 can have a shape that protrudes rearward in a multi-stage manner.

[0358] On the other hand, as described above, the air passage 230 can be formed by protruding rearward from the back side 210 of the roller, and the air passage 230 can be inserted from the front of the rear protrusion 140 into the space formed by the rear protrusion 140. In addition, the air passage 230 can be inserted into the interior of the rear protrusion 140 and directly face the open front side 131 of the airflow section 130 and shield the front side 131.

[0359] In an embodiment of the present application, the air passing portion 230 is formed to protrude rearward from the drum rear surface 210, so that the space inside the drum 200 can be effectively expanded, and the rear plate 110 can provide a space for accommodating the air passing portion 230 by forming the rearward protruding portion 140.

[0360] Thus, in an embodiment of the present application, the air passing portion 230 protruding rearward from the drum 200 can be accommodated inside the cabinet 100 in a state in which the entire rear plate 110 is not further spaced apart rearward from the drum 200, so that the space utilization can be improved.

[0361] Further, the air passing portion 230 receiving air from the air flow portion 130 protrudes rearward from the drum rear surface 210, and the air flow portion 130 is formed to protrude rearward from the rearward protruding portion 140, so that at least a portion of the air passing portion 230 can effectively shield the open front surface 131 of the air flow portion 130 while being accommodated inside the rearward protruding portion 140 and receive air.

[0362] On the other hand, in an embodiment of the present application, the rearward protruding portion 140 can include a rearward peripheral area 141 expanding a reference distance L1 from the air flow portion 130 to the radially outer side of the air flow portion 130, and an expanded peripheral area 142 expanded greater than the reference distance L1.

[0363] In addition, the expanded peripheral area 142 can include an extension hole 144 through which an extension member 143 leading from the inside of the cabinet 100 to the outside is passed. Figure 14 The expanded peripheral area 142 of the rearward protruding portion 140 of an embodiment of the present application is illustrated.

[0364] As described above, in an embodiment of the present application, by forming the rearward protruding portion 140 on the rear plate 110, the space inside the cabinet 100 can be effectively increased without increasing the overall volume of the cabinet 100.

[0365] The space formed inside the cabinet 100 by the rearward protruding portion 140 accommodates various components inside the cabinet 100 while accommodating the air passing portion 230 of the drum rear surface 210, so that the utilization of the internal space of the cabinet 100 can be improved.

[0366] On the other hand, the air passing portion 230 accommodated inside the rearward protruding portion 140 rotates together with the drum 200 as a portion of the drum rear surface 210, so that the rear peripheral surface 148 corresponding to the outer peripheral surface of the rearward protruding portion 140 needs to be spaced apart from the passing peripheral surface 238 of the air passing portion 230 by a predetermined distance in the circumferential direction of the drum 200.

[0367] However, in an embodiment of the present application, in order to prevent the area of the rear protrusion 140 from being unnecessarily increased, the rear peripheral area 141 of the rear protrusion 140 can be expanded by a reference distance Ll from the air flow portion 130 or the air passing portion 230 to the radially outer side of the air flow portion 130, and the expanded peripheral area 142 can be expanded by more than the reference distance Ll to secure an additional space between the rear outer peripheral surface 148 and the passing outer peripheral surface 238.

[0368] The reference distance Ll corresponds to a separation distance that can avoid interference between the rear outer peripheral surface 148 or the like and the rotating air passing portion 230, and can be variously determined according to design.

[0369] In the present application, the expanded peripheral area 142 can have various shapes and be disposed at various positions. The specific shape and position of the expanded peripheral area 142 can be variously determined according to the configuration of the inside of the cabinet 100 or the like.

[0370] Referring to Figure 14 In an embodiment of the present application, the expanded peripheral area 142 can be formed at a portion of the rear protrusion 140, and can also be provided as a plurality of areas. Figure 14 An example in which a portion of the rear peripheral area 141 of an embodiment of the present application facing the side panel 109 extends to the side panel 109 to form the expanded peripheral area 142 is shown.

[0371] On the other hand, the expanded peripheral area 142 can be provided with an extension hole 144 through which an extension member 143 extending from the inside of the cabinet 100 to the outside is inserted. That is, in an embodiment of the present application, the extension member 143 extending inside the cabinet 100 can pass through the space formed by the expanded peripheral area 142 and the drum 200 and be extended to the outside.

[0372] The extension member 143 can be various types. For example, the extension member 143 can correspond to a drain pipe or the like extending from the above-mentioned water collecting portion 1065 to the outside. The extension member 143 can extend along the back of the rear panel 110 after being extended to the outside through the expanded peripheral area 142 at the lower side of the inside of the cabinet 100 and be introduced to the upper side of the inside of the cabinet 100 again through the expanded peripheral area 142.

[0373] In an embodiment of the present application, the extension member 143 extends outside the cabinet 100 and connects different configurations inside the cabinet 100, thereby being able to prevent structural interference between the drum 200 and the extension member 143, and effectively increase the capacity of the drum 200.

[0374] Further, in an embodiment of the present application, a space for the extension member 143 to extend in the inside of the cabinet 100 in a state of being spaced apart from the drum 200 can be effectively secured by the expanded peripheral area 142, and since the rear protruding portion 140 is separately provided with the rear peripheral area 141 and the expanded peripheral area 142, it is possible to prevent the area of the rear protruding portion 140 from being unnecessarily increased.

[0375] On the other hand, in an embodiment of the present application, the rear plate 110 can include a rear reference surface 111 located further rearward than the drum 200, the rear protruding portion 140 can protrude rearward from the rear reference surface 111, the air flow portion 130 can protrude rearward from the rear protruding portion 140, and the drive mounting portion 120 can protrude forward from the rear protruding portion 140.

[0376] Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings. Figure 15 In an embodiment of the present application, a portion of the rear plate 110 other than the rear protruding portion 140 can correspond to a rear reference surface 111. That is, the rear reference surface 111 can be a portion of the rear plate that is not protruded by the rear protruding portion 140. The rear reference surface 111 can be provided in a substantially flat plate shape.

[0377] In the rear plate 110, the rear reference surface 111 can serve as a reference to confirm the degree to which the rear protruding portion 140 and the air flow portion 130 protrude rearward. That is, in an embodiment of the present application, at least a portion of the rear protruding portion 140 and the air flow portion 130 can be located further rearward than the rear reference surface 111.

[0378] The rear protruding portion 140 can protrude rearward from the rear reference surface 111, and can be provided in a stepped shape with the rear reference surface 111. The air flow portion 130 can protrude rearward from the rear protruding portion 140, and can be provided in a stepped shape with the rear protruding portion 140.

[0379] Specifically, the rear protruding portion 140 can include a rear outer circumferential surface 148 extending rearward from the rear reference surface 111 and extending along the periphery of the rear protruding portion 140, and a rear protruding surface 149 connected with the rear outer circumferential surface 148 and shielding the inside of the cabinet 100.

[0380] The rear protruding surface 149 can be in a substantially flat plate shape parallel to the rear reference surface 111, and the rear outer circumferential surface 148 can surround the rear protruding surface 149 and be connected with the periphery of the rear protruding surface 149.

[0381] The air flow portion 130 can include a flow outer circumferential surface 134 extending rearward from the rear protrusion surface 149 and surrounding an outer circumferential edge of the flow space 135, a flow inner circumferential surface 133 extending rearward from the rear protrusion surface 149 and surrounding an inner circumferential edge of the flow space 135, and a flow recessed surface 132 located at a position further rearward than the rear protrusion surface 149 and shielding the flow space 135 from the rear, connected with the flow outer circumferential surface 134 and the flow inner circumferential surface 133.

[0382] The air flow portion 130 can be provided in a ring shape, the flow inner circumferential surface 133 can be provided to surround the driving mounting portion 120 and the driving portion 400, and the flow outer circumferential surface 134 can be provided to surround the flow inner circumferential surface 133 and the flow space 135.

[0383] The flow outer circumferential surface 134 can be located outside the flow inner circumferential surface 133 and the flow space 135 with reference to a radial direction of the air flow portion 130. The flow recessed surface 132 can be provided in a space between the flow outer circumferential surface 134 and the flow inner circumferential surface 133, and an inner circumferential edge of the flow recessed surface 132 can be connected with the flow inner circumferential surface 133 and an outer circumferential edge thereof can be connected with the flow outer circumferential surface 134.

[0384] The air flow portion 130 can be located inside the rear protrusion surface 149, and the rear protrusion portion 140 can be located inside the rear reference surface 111. That is, at least a portion of a circumferential edge of the air flow portion 130 can be surrounded by the rear protrusion portion 140, and at least a portion of a circumferential edge of the rear protrusion portion 140 can be surrounded by the rear reference surface 111.

[0385] The rear protrusion surface 149 can be located at a position further rearward than the rear reference surface 111, and the flow recessed surface 132 can be located at a position further rearward than the rear protrusion surface 149. The rear reference surface 111, the rear protrusion portion 140, and the air flow portion 130 can be formed in a stepped manner with respect to each other on the rear plate 110.

[0386] An embodiment of the present application includes the rear protrusion portion 140 protruding rearward inside the rear reference surface 111, and includes the air flow portion 130 protruding rearward inside the rear protrusion portion 140, thereby being able to minimize a portion unnecessarily protruding and expanding to the outside, and being able to effectively expand an inner space of the case 100.

[0387] On the other hand, Figure 18 An inflow extension portion 138 extending from the air flow portion 130 and used to join the fan duct portion 1082 is shown, Figure 19 A fan duct portion 1082 inserted into the flow space 135 is shown, Figure 20 A flow space 135 in which the inflow extension portion 138 of the fan duct portion 1082 is removed is shown. Figure 19 A flow space 135 in which the inflow extension portion 138 of the fan duct portion 1082 is removed is shown.

[0388] Referring to Figure 18 to Figure 20 In an embodiment of the present application, the inflow extension 138 can include an extension space 1381 extending from the flow space 135 toward the air supply 106 and open to the front.

[0389] The air supply 106 can include the above-described fan duct portion 1082, at least a portion of which can be inserted into the extension space 1381 to discharge air to the flow space 135.

[0390] In addition, the fan duct portion 1082 can include an air discharge portion 1082 inserted into the extension space 1381 to separate the flow space 135 from the extension space 1381 and discharge air to the flow space 135.

[0391] As described above, the inflow extension 138 can extend from the air flow portion 130, and the air supply 106 can be connected with the inflow extension 138. The inflow extension 138 can include an extension space 1381 extending from the flow space 135, and the front of the inflow extension 138 is open, and the fan duct portion 1082 can be inserted thereinto from the front.

[0392] The inflow extension 138 can include an extension circumferential surface 1385 surrounding the extension space 1381, and can form an extension recessed surface 1383 that shields the rear of the extension space 1381. The inflow extension 138 can be integrally formed with the air flow portion 130 and protrude rearward from the rear reference surface 111 of the rear plate 110 or the rear protrusion portion 140.

[0393] The extension circumferential surface 1385 can protrude rearward from the rear protrusion surface 149. The extension space 1381 can be connected with the flow space 135, and the extension circumferential surface 1385 can be disposed to surround the extension space 1381 in a region other than a connection region of the extension space 1381 and the flow space 135.

[0394] That is, between one end and the other end of the flow outer circumferential surface 134 extending along the outer circumferential surface of the flow space 135, an open ring shape can be provided due to the extension space 1381, the extension outer circumferential surface can surround the extension space 1381, and the one end and the other end of the flow outer circumferential surface 134 can be connected.

[0395] The flow outer circumferential surface 134 and the extension outer circumferential surface can form one closed cross section together. The flow outer circumferential surface 134 and the extension outer circumferential surface can be disposed to surround the outer circumferential surface of the flow space 135 and the extension space 1381 together, and the extension outer circumferential surface can be disposed as a part of the flow outer circumferential surface 134.

[0396] The extension recessed surface 1383 can be located further rearward than the rear convex surface 149, and can extend from the flow recessed surface 132. That is, the extension recessed surface 1383 can form one surface located further rearward than the rear convex surface 149 together with the flow recessed surface 132.

[0397] On the other hand, as described above, the fan duct portion 1082 can extend from the air supply portion 106, an end portion thereof facing the flow space 135 or the extension space 1381 can be inserted into the extension space 1381, and can be combined with the rear plate 110.

[0398] The fan duct portion 1082 can be inserted into the extension space 1381 and discharge air to the flow space 135. The air discharge direction B of the fan duct portion 1082 can be parallel to the flow recessed surface 132, and can be parallel to the radial direction or the tangential direction of the air flow portion 130.

[0399] In an embodiment of the present application, the fan duct portion 1082 is inserted into the extension space 1381 and discharges air to the flow space 135, whereby the air discharge direction B can be made parallel to the flow space 135 and the rear plate 110, so that turbulent flow of air can be minimized.

[0400] In addition, the air discharge portion 1082 can be provided at an end portion of the fan duct portion 1082 facing the flow space 135. For example, the air discharge portion 1082 can correspond to the end portion of the fan duct portion 1082. The air discharge portion 1082 can be inserted into the extension space 1381 to discharge air, and the air discharge direction B can be provided parallel to the flow space 135 or the rear plate 110.

[0401] The air discharge portion 1082 can be provided to separate the flow space 135 from the extension space 1381. For example, the air discharge portion 1082 can be provided to shield at least a portion of a boundary surface of the flow space 135 and the extension space 1381 and discharge air to the flow space 135.

[0402] Figure 19 A case in which the air discharge portion 1082 of an embodiment of the present application shields the entire boundary region of the flow space 135 and the extension space 1381 is shown. That is, the air discharge portion 1082 can be in contact with the flow recessed surface 132 or the extension recessed surface 1383, and can be in contact with the extension peripheral surface 1385 or the flow outer peripheral surface 134, respectively, opposite to each other along the circumferential direction of the flow space 135.

[0403] The air discharge portion 1082 can be provided in the shape of an arc extending in the circumferential direction of the flow space 135. That is, the air discharge portion 1082 can have a curvature corresponding to the flow outer circumferential surface 134 and surround the entire outer periphery of the flow space 135 together with the flow outer circumferential surface 134.

[0404] The air discharge portion 1082 can form an air discharge port for discharging air on a side facing the flow space 135. The air discharge port can discharge air in a direction parallel to the flow recessed surface 132.

[0405] In an embodiment of the present application, the air discharge portion 1082 of the fan duct portion 1082 is inserted into the extension space 1381 to separate the flow space 135 from the extension space 1381, thereby being able to effectively prevent unnecessary air inflow to the extension space 1381.

[0406] In addition, the air discharge portion 1082 is inserted into the extension space 1381 and discharges air in a direction parallel to the flow recessed surface 132, thereby being able to reduce turbulent flow of air supplied to the flow space 135 and being able to improve the degree of freedom of the shape extending from the fan duct portion 1082 other than the air discharge portion 1082.

[0407] On the other hand, as described above, an embodiment of the present application can further include an outer seal 320 provided in an annular shape and surrounding the outer periphery of the air flow portion 130 and configured to suppress air leakage.

[0408] In addition, in an embodiment of the present application, the rear plate 110 can include a first outer seal 320 arrangement portion 1494 extending along the outer periphery of the air flow portion 130, and the outer seal 320 is disposed in front of the first outer seal 320 arrangement portion 1494 from the first outer seal 320 arrangement portion 1494.

[0409] In addition, the air discharge portion 1082 can include a second outer seal 320 arrangement portion 1496 surrounding the outer periphery of the flow space 135 together with the first outer seal 320 arrangement portion 1494, and the outer seal 320 is disposed in front of the second outer seal 320 arrangement portion 1496 from the second outer seal 320 arrangement portion 1496.

[0410] Specifically, the first outer seal 320 arrangement portion 1494 supports the outer seal 320 on the outer circumferential edge of the air flow portion 130. The first outer seal 320 arrangement portion 1494 can be provided on the rear protruding surface 149, or can be provided on the rear reference surface 111.

[0411] Figure 18 The first outer seal 320 arrangement portion 1494 of an embodiment of the present application is shown as being formed on the rear protruding surface 149 connected to the flow outer circumferential surface 134 and having the outer seal 320 disposed thereon.

[0412] The first outer seal 320 arrangement portion 1494 can be parallel to the rear protruding surface 149 or can be recessed rearward from the rear protruding surface 149. The outer seal 320 can be joined and fixed to the first outer seal 320 arrangement portion 1494.

[0413] The second outer seal 320 arrangement portion 1496 can be provided on the air discharge portion 1082. As described above, the air discharge portion 1082 can be provided so as to surround the outer circumferential edge of the flow space 135 together with the air outer circumferential surface, and thus the second outer seal 320 arrangement portion 1496 for disposing the outer seal 320 can be formed on the front side of the air discharge portion 1082.

[0414] Figure 19 The second outer seal 320 arrangement portion 1496 provided on the front side of the air discharge portion 1082 of an embodiment of the present application is shown. The second outer seal 320 arrangement portion 1496 can be recessed rearward from the outer surface of the air discharge portion 1082, and can form a circle together with the first outer seal 320 arrangement portion 1494.

[0415] In the present application, a circle can include not only a true circle having a constant radius in the circumferential direction, but also an ellipse having a varying radius. That is, in the present application, a circle can be a general term for a closed curve whose curvature varies differently in the circumferential direction.

[0416] The first outer seal 320 arrangement portion 1494 and the second outer seal 320 arrangement portion 1496 can be continuously connected to each other, and can together form a ring shape corresponding to the shape of the outer seal 320. Thereby, the outer seal 320 can be disposed on both the first outer seal 320 arrangement portion 1494 and the second outer seal 320 arrangement portion 1496.

[0417] In one embodiment of the present application, a first outer seal 320 arrangement portion 1494 is provided on the flow outer circumferential surface 134, and a second outer seal 320 arrangement portion 1496 is provided on the air discharge portion 1082, whereby the air tightness of the flow space 135 can be ensured, and leakage of air flowing out from the air flow portion 130 to the inflow extension portion 138 side can be effectively prevented.

[0418] On the other hand, in one embodiment of the present application, the fan duct portion 1082 can further include a fan duct extension portion 1084. The fan duct extension portion 1084 can extend from the air discharge portion 1082 to the outside of the extension space 1381 and be combined with the rear plate 110.

[0419] In addition, the rear plate 110 can include a fan duct combination portion 1491 that is recessed to the rear side from the outside of the inflow extension portion 138, so that the fan duct extension portion 1084 is disposed from the front side in the fan duct combination portion 1491.

[0420] Referring to Figure 19 , the fan duct extension portion 1084 can extend from the air discharge portion 1082 to the outside of the air flow portion 130 and the inflow extension portion 138. Thereby, air flow hindrance at a combination portion for combining the air discharge portion 1082 or air leakage can be effectively prevented from occurring in the flow space 135 or the extension space 1381.

[0421] The fan duct extension portion 1084 can extend from the air discharge portion 1082 along the circumferential direction of the air flow portion 130. That is, the fan duct extension portion 1084 can extend along the outside circumferential edge of the flow space 135. Therefore, the air discharge portion 1082 can form one arc shape including the fan duct extension portion 1084.

[0422] The fan duct extension portion 1084 can be disposed on the rear protrusion surface 149. That is, the fan duct combination portion 1491 can be provided on the rear protrusion surface 149. Figure 20 The fan duct combination portion 1491 in which the fan duct extension portion 1084 is disposed is shown.

[0423] The fan duct combination portion 1491 can be recessed to the rear side from the rear protrusion surface 149 so that the fan duct extension portion 1084 is disposed thereon from the front side of the fan duct combination portion 1491. The fan duct extension portion 1084 can extend from the front side of both end portions of the air discharge portion 1082 based on the circumferential direction of the air flow portion 130 and be disposed on the rear protrusion surface 149.

[0424] The fan duct extension 1084 extends from the air discharge portion 1082 inserted into the extension space 1381, and thus the fan duct coupling portion 1491 is provided in the shape of a groove open toward the extension space 1381, thereby preventing a gap from being generated when the fan duct extension 1084 is coupled.

[0425] On the other hand, Figure 21 An example of the air supply portion 107 of the present embodiment is shown as being inserted into the inside of the extension space 1381 from the front of the inflow extension portion 138, Figure 22 An example of the air supply motor 1073 coupled to the rear of the air supply fan housing is shown.

[0426] Referring to Figure 21 and Figure 22 In an example of the present embodiment, the air supply portion 107 can include an air supply fan 1071 and an air supply motor 1073, and at least a portion of the air supply portion 107 can be inserted into the extension space 1381 and blow air into the inside of the fan duct.

[0427] As described above, the air supply portion 107 can be positioned at the rear side of the air supply portion 106 and can be opposite the inflow extension portion 138 in the rear direction. At least a portion of the air supply fan housing of the air supply portion 107 and the air supply motor 1073 can be inserted into the extension space 1381, thereby sufficiently securing the length of the air supply portion 106 in the front-rear direction.

[0428] On the other hand, in an example of the present embodiment, the air supply fan 1071 of the air supply portion 107 can be positioned inside the rear protruding portion 140, and the air supply motor 1073 can be disposed behind the air supply fan 1071 and inserted into the extension space 1381.

[0429] In an example of the present embodiment, the rear protruding portion 140 and the inflow extension portion 138 of the rear plate 110 can be steppedly protruded in the rear direction to form a space inside the rear plate 110, and the air supply motor 1073 can be disposed behind the air supply fan 1071 or the air supply fan housing of the air supply portion 107.

[0430] Thus, the air supply motor 1073 positioned behind the air supply fan 1071 or the air supply fan housing of the air supply portion 107 can be inserted into the extension space 1381, and at least a portion of the air supply fan 1071 or the air supply fan housing positioned in front of the air supply motor 1073 can be positioned in the space inside the rear protruding portion 140.

[0431] Since the blower motor 1073 can be inserted into the extension space 1381, and the blower motor 1073 can be combined with the extension recessed surface 1383, in an embodiment of the present application, the rear plate 110 can be provided with a plurality of power generation devices corresponding to the motor or the like. That is, in an embodiment of the present application, the rear plate 110 can be combined with the blower motor 1073 and the driving portion 400.

[0432] On the other hand, Figure 22 A blower fan support portion 1075 protruding rearward from the base portion 105 or the lower plate 103 and supporting the blower fan housing is shown as an embodiment of the present application.

[0433] Referring to Figure 22 In an embodiment of the present application, the air supply portion 106 can include a blower fan support portion 1075 supporting the blower fan 1071 below the blower fan 1071.

[0434] In addition, the rear outer circumferential surface 148 of the rear protrusion portion 140 can include a support insertion portion 1482 into which the blower fan support portion 1075 is inserted from the front. As described above, the blower fan 1071 can be inserted into the inside of the rear protrusion portion 140, and thus the blower fan support portion 1075 located below the blower fan 1071 can also be inserted into the inside of the rear protrusion portion 140.

[0435] Thus, the rear protrusion portion 140 can be provided with a support insertion portion 1482 into which the blower fan support portion 1075 is inserted from the front, and the support insertion portion 1482 can be combined with the blower fan support portion 1075.

[0436] The shape of the support insertion portion 1482 can be various. For example, the support insertion portion 1482 can be provided in the rear protrusion surface 149 into which the blower fan support portion 1075 is inserted from the front, or, as described below, can be formed in the rear outer circumferential surface 148 into which the support insertion portion 1482 is inserted.

[0437] The support insertion portion 1482 can include a space opened toward the front into which the blower fan support portion 1075 is inserted, and the space can correspond to a part of the space inside the rear protrusion portion 140, or can be separately formed.

[0438] In an embodiment of the present application, by providing the blower fan support portion 1075 supporting the blower fan 1071 in the base portion 105 or the lower plate 103, the blower fan 1071 or the blower fan housing can be stably fixed and supported, and the air flow can be improved by making the center of rotation of the blower fan 1071 coincide with the center of the air flow path of the air supply portion 106.

[0439] Further, in an embodiment of the present application, by providing a support insertion portion 1482 for insertion of the air supply fan support portion 1075 in the rear portion 110, i.e., the rear protruding portion 140, it is possible to effectively accommodate the air supply fan 1071 including the air supply fan support portion 1075 and at least a portion of the air supply fan housing inside the rear protruding portion 140.

[0440] On the other hand, Figure 23 An air guide portion of an embodiment of the present application provided in the air flow portion 130 is shown.

[0441] Referring to Figure 23 , the air guide portion can be provided to guide the flow of air inside the air flow portion 130, and can include an outflow guide portion 136 and an inflow guide portion 137. The outflow guide portion 136 can protrude from the flow recessed surface 132 toward the air passing portion 230 to guide the flow of air toward the air passing portion 230.

[0442] The outflow guide portion 136 can include a first outflow guide portion 1362 and a second outflow guide portion 1364, the first outflow guide portion 1362 can be located on the opposite side of the air supply portion 106 with the center of the air flow portion 130 as a reference, and the maximum height of the first outflow guide portion 1362 protruding from the flow recessed surface 132 can be set to be equal to or greater than the depth of the flow space 135.

[0443] The second outflow guide portion 1364 can be located between the first outflow guide portion 1362 and the air supply portion 106 along the circumference of the flow space 135, and the maximum height of the second outflow guide portion 1364 protruding from the flow recessed surface 132 can be set to be less than the depth of the flow space 135.

[0444] The inflow guide portion 137 can be provided to the flow inner circumferential surface 133, and can be provided to protrude toward the air supply portion 106, thereby guiding the flow of air supplied from the air supply portion 106.

[0445] Figure 24 An inflow guide portion 137 of an embodiment of the present application is shown, Figure 25 A first outflow guide portion 1362 is shown, Figure 26 A second outflow guide portion 1364 is shown.

[0446] Referring to Figure 24 to Figure 26 , the air guide portion of an embodiment of the present application is explained as follows.

[0447] The air guide portion can be provided to protrude from the flow space 135 to guide the flow of air. The air guide portion can be provided in a shape protruding from the flow space 135 to guide the flow of air.

[0448] The air supplied from the air supply part 106 flows in the flow space 135, and the air guide part guides the flow of the air flowing in the flow space 135, thereby being able to improve the flow resistance, improve the uniformity of the air flowing to the drum back surface 210, or increase the air flow of the circulation flow path and improve the drying efficiency of the drum 200 by reducing the turbulent flow.

[0449] The air guide part can be provided in various shapes at different positions. For example, the air guide part can be provided in a shape protruding to the inside of the flow space 135 from any one of the flow outer circumferential surface 134, the flow inner circumferential surface 133, and the flow recessed surface 132.

[0450] The air guide part can be separately manufactured and coupled to the inner side surface of the air flow part 130, that is, the flow outer circumferential surface 134, the flow inner circumferential surface 133, and the flow recessed surface 132, or can be integrally formed with the inner side surface.

[0451] The air guide part can be located at a position opposite to the air supply part 106 to guide the flow of the air flowing in from the air supply part 106, or can be provided at any point of the flow space 135 spaced apart from the air supply part 106 to guide the flow of the air flowing through the flow space 135.

[0452] The air guide part can protrude from the inner side surface of the air flow part 130 toward the drum back surface 210 to guide the flow of the air of the flow space 135 toward the drum back surface 210, or can protrude toward the air supply part 106 to guide the flow direction of the air flowing into the flow space 135.

[0453] On the other hand, referring to Figure 23 and Figure 24 An embodiment of the present application can include the air supply part 106 and the inflow extension part 138 described above, and the air flow part 130 can include an inflow guide part 137.

[0454] The inflow guide part 137 corresponds to the air guide part, and the inflow guide part 137 can be located at a position opposite to the inflow extension part 138 to guide the direction in which the air discharged from the air supply part 106 flows into the air flow part 130.

[0455] As described above, the air flow part 130 can be provided in a substantially ring shape and surround the driving installation part 120, the inflow extension part 138 extends from one side of the air flow part 130, and the air supply part 106 discharges air from the inflow extension part 138, and the air flowing into the air flow part 130 from the air supply part 106 can branch in one direction and another direction with the circumferential direction of the air flow part 130 as a reference and flow in.

[0456] Figure 23 and Figure 24 The case where the air flowing into the flow space 135 from the air supply portion 106 flows in one direction and another direction is schematically shown by arrows.

[0457] In an embodiment of the present application, the air flow portion 130 can include a first extension flow path 1302 extending in one direction in the circumferential direction of the air flow portion 130 with the air supply portion 106 as a reference, and a second extension flow path 1304 extending in the opposite direction.

[0458] That is, the air flow portion 130 can be formed by the first extension flow path 1302 and the second extension flow path 1304 together and in a ring shape. The first extension flow path 1302 and the second extension flow path 1304 can be conceptually distinguished and defined according to the direction extending with the air supply portion 106 as a reference.

[0459] That is, a portion of the air flow portion 130 extending in one direction with the air supply portion 106 as a reference can be defined as the first extension flow path 1302, and the remaining portion extending in another direction can be defined as the second extension flow path 1304.

[0460] The first extension flow path 1302 and the second extension flow path 1304 can be provided in a form connected to each other to form a ring shape together. The first extension flow path 1302 and the second extension flow path 1304 can be connected to each other on opposite sides of the air supply portion 106 with the center of the air supply portion 106 and the air flow portion 130 as a reference.

[0461] Figure 23 and Figure 24 The first extension flow path 1302 extending in one direction and the second extension flow path 1304 extending in another direction of an embodiment of the present application are shown with the air supply portion 106 as a reference.

[0462] In the present application, when the air flow portion 130 is viewed from the front, the one direction can be the counterclockwise direction and the other direction can be the clockwise direction. However, the one direction can also correspond to the clockwise direction and the other direction can also correspond to the counterclockwise direction as needed.

[0463] In the case where the first extension flow path 1302 and the second extension flow path 1304 are defined in the air flow portion 130, in an embodiment of the present application, the air flowing into the flow space 135 from the air supply portion 106 can flow into each of the first extension flow path 1302 and the second extension flow path 1304 separately.

[0464] Therefore, in one embodiment of the present invention, the direction and amount of air flowing into the air supply unit 106 can be guided by providing an inflow guide 137 at a position opposite to the air supply unit 106.

[0465] The inflow guide 137 can protrude forward from the inflow recess, protrude from the inner flow surface 133 toward the air supply section 106, or protrude from the outer flow surface 134.

[0466] At least a portion of the inflow guide 137 may be located in the discharge direction B from the air supply section 106, and may be located approximately between the center of the airflow section 130 and the air supply section 106. That is, the inflow guide 137 may be located between the drive mounting section 120 and the air supply section 106.

[0467] The inflow guide 137 can adjust the flow ratio of air flowing into the first extended flow path 1302 and the second extended flow path 1304 by guiding the flow of air discharged from the air supply section 106, or it can improve the flowability by appropriately adjusting the flow direction of air flowing into the first extended flow path 1302 and the second extended flow path 1304 respectively.

[0468] That is, in one embodiment of the present invention, air can be supplied to the back side of the roller 210 by forming an effective airflow, for example, by improving the overall air uniformity of the airflow section 130 through the inflow guide section 137, or by increasing the flow rate of either the first extended flow path 1302 or the second extended flow path 1304 as needed.

[0469] On the other hand, in one embodiment of the present invention, the inflow guide 137 may be disposed on the inner peripheral surface 133 of the flow and protrude from the air supply section 106. Figure 23 and Figure 24 An inflow guide 137 provided on the inner peripheral surface 133 of the flow path is shown according to an embodiment of the present invention.

[0470] When the inflow guide 137 protrudes from the flow recess 132, a portion of the air that is in contact with the inflow guide 137 and guided in the flow direction may flow along the periphery of the inflow guide 137. As a result, the air may not effectively follow the expected flow direction through the inflow guide 137, or turbulent flow may occur.

[0471] Therefore, in one embodiment of the present invention, by providing an inflow guide 137 on the inner peripheral surface 133, the inflow guide 137 can easily protrude relative to the air supply section 106 and can effectively guide the flow direction of the air.

[0472] On the other hand, in one embodiment of the present application, the air flow portion 130 can extend in a manner that a portion of the flow inner circumferential surface 133 protrudes toward the air supply portion 106 and is formed with the inflow guide portion 137.

[0473] In one embodiment of the present application, the inflow guide portion 137 can correspond to a portion of the flow inner circumferential surface 133. That is, a portion of the flow inner circumferential surface 133 facing the air supply portion 106 can protrude toward the flow space 135 to form the inflow guide portion 137.

[0474] Thus, the inflow guide portion 137 can have a shape protruding toward the front from the flow recessed surface 132 to form a space at the rear thereof. Figure 14 A case where the inflow guide portion 137 is integrally formed with the flow recessed surface 132 and the flow inner circumferential surface 133 of the air flow portion 130 is shown as viewed from the rear.

[0475] In one embodiment of the present application, since the inflow guide portion 137 is provided as a portion of the flow inner circumferential surface 133, the inflow guide portion 137 is also formed together in a molding process of the rear plate 110 including the air flow portion 130 and the like, and thus manufacturing can be facilitated.

[0476] On the other hand, referring to Figure 23 In one embodiment of the present application, a portion of the flow inner circumferential surface 133 corresponding to the inflow guide portion 137 can extend in a straight line, and the remaining portion can extend in a curved line.

[0477] As described above, in one embodiment of the present application, the air flow portion 130 can be provided in a ring shape, and thus the flow outer circumferential surface 134 and the flow inner circumferential surface 133 can also form a ring shape in a substantially circumferential shape and surround the flow space 135.

[0478] However, in one embodiment of the present application, the flow inner circumferential surface 133 can include the inflow guide portion 137 protruding toward the air supply portion 106, and thus the flow inner circumferential surface 133 can have a ring shape in which a portion of a circumferential shape protrudes to the radial outer side.

[0479] For example, the flow inner circumferential surface 133 can be provided in a streamline shape. That is, the flow inner circumferential surface 133 can be provided in a streamline shape, which extends in a curved line corresponding to a circumferential shape of a true circle in a portion other than the inflow guide portion 137, and extends in a straight line toward the air supply portion 106 in the inflow guide portion 137.

[0480] The inflow guide portion 137 can be provided in a shape in which the width gradually narrows as it approaches the air supply portion 106 with the circumference of the air flow portion 130 as a reference. That is, the inflow guide portion 137 can have a shape in which it protrudes sharply toward the air supply portion 106 from the flow inner circumferential surface 133.

[0481] Thus, in an embodiment of the present application, the air discharged from the air supply portion 106 can be effectively divided in flow by the inflow guide portion 137 extending substantially linearly on the outside.

[0482] Further, the flow resistance and turbulent flow of the air divided in flow by the inflow guide portion 137 toward the first and second extension flow paths 1302 and 1304 are effectively improved by the flow inner circumferential surface 133 extending in a curve corresponding to the circumferential shape, and the flowability is improved.

[0483] On the other hand, in an embodiment of the present application, the air supply portion 106 can be provided so that the amount of air flowing toward the first extension flow path 1302 is greater than the amount of air flowing toward the second extension flow path 1304.

[0484] In addition, the inflow guide portion 137 can guide a portion of the air flowing toward the first extension flow path 1302 to flow toward the second extension flow path 1304.

[0485] In an embodiment of the present application, the discharge direction B of the air discharged from the air supply portion 106 can be provided to be closer to the first extension flow path 1302 among the first and second extension flow paths 1302 and 1304. Thus, the air supplied to the first extension flow path 1302 can be more than the air supplied to the second extension flow path 1304.

[0486] That is, in an embodiment of the present application, the region in which air is concentratedly discharged in the open front surface 131 of the air flow portion 130 can be set by differently setting the air flow rates of the first and second extension flow paths 1302 and 1304, and air can be effectively supplied to the inside of the drum 200.

[0487] The flow rates of the air supplied to the first and second extension flow paths 1302 and 1304 can be determined by analyzing the flow of the air flowing into the inside of the drum 200 and being discharged, or can be determined from other strategic aspects considering drying efficiency.

[0488] For example, in an embodiment of the present application, air is concentrated to the first extension flow path 1302 and a large amount of air is supplied to the air passing portion 230 through the open front surface of the first extension flow path 1302, and the flow resistance of the first extension flow path 1302 can be offset by flowing a portion of the air to the second extension flow path 1304 and supplying air to the air passing portion 230 through the front surface of the second extension flow path 1304.

[0489] Referring to Figure 23 As described above, the air supply portion 106 can be positioned at a position on one side in the side direction of the drum 200, in which case either one of the first extension flow path 1302 and the second extension flow path 1304 can be positioned with respect to the lower portion of the air flow portion 130, and the other can be positioned with respect to the upper portion of the air flow portion 130.

[0490] Even in the drying course, by the rotation of the drum 200, a portion of laundry accommodated inside the drum 200 is lifted from the inner side surface of the drum 200 in the rotation direction of the drum 200, and the laundry can be distributed in the lower side of the inside of the drum 200 as a whole due to the weight.

[0491] In this case, supplying air to a region of the air passing portion 230 corresponding to the lower side of the inside of the drum 200 can generate strong flow resistance due to the laundry inside the drum 200, and thus can be disadvantageous for the circulation of air.

[0492] Therefore, in an embodiment of the present application, the air flow supplied to the first extension flow path 1302 positioned on one side and the upper portion of the air flow portion 130 is relatively increased, and the air flow supplied to the second extension flow path 1304 positioned on the other side and the lower portion of the air flow portion 130 is relatively decreased, thereby being able to effectively reduce the flow resistance of air supplied to the air passing portion 230 and supply air to the inside of the drum 200.

[0493] In addition, making air flow only in the first extension flow path 1302 is to use only a defined flow path in the entire air flow portion 130, thereby increasing the flow resistance of the first extension flow path 1302, and thus can be disadvantageous.

[0494] Therefore, in an embodiment of the present application, while increasing the air flow in the first extension flow path 1302, a predetermined amount or more of air is also made to flow in the second extension flow path 1304, thereby being able to improve the flow resistance in the entire air flow portion 130 and being able to improve the uniformity of the outflowing air, thereby being able to perform an effective drying course.

[0495] The air discharge direction B of the air of the air supply portion 106 can be set in design in accordance with the direction in which the air discharge port of the fan duct portion 1082 discharges air, and the like. On the other hand, the air flowing fan 1071 in the air supply portion 106 can discharge air in the tangential direction thereof, and the tangential direction of the air flowing fan 1071, that is, the flow direction of the air discharged from the air flowing fan 1071 can also be set to be directed toward the first extension flow path 1302.

[0496] That is, in an embodiment of the present application, the connection portion of the air flowing fan housing and the fan duct portion 1082 can be set to be directed toward the first extension flow path 1302 in the tangential direction of the air flowing fan 1071, the fan duct portion 1082 also extends substantially in parallel with the tangential direction of the air flowing fan 1071, and the opening direction of the air discharge port, that is, the air discharge direction B is set at a position closer to the first extension flow path 1302 than the second extension flow path 1304, thereby being able to minimize the turbulent flow of the air from the air flowing fan 1071 to the first extension flow path 1302, and being able to supply a relatively large amount of air to the first extension flow path 1302.

[0497] However, as described above, it is necessary to provide a predetermined amount or more of air flow to the second extension flow path 1304, and thus, the air discharge direction B of the air supply portion 106 can not be directed entirely toward the first extension flow path 1302, or a part of the air discharged from the air supply portion 106 can flow out of the first extension flow path 1302.

[0498] In addition, the inflow guide portion 137 separates a part of the air extending through the air supply portion 106 in a manner of flowing mainly into the first extension flow path 1302 and flows to the second extension flow path 1304 without flowing to the first extension flow path 1302.

[0499] That is, the inflow guide portion 137 can be disposed at a position closer to the first extension flow path 1302, branches a part of the air flowing to the first extension flow path 1302, and guides the air to the second extension flow path 1304. For example, the end portion of the inflow guide portion 137 protruding from the flow inner circumferential surface 133 can be disposed at a position closer to the first extension flow path 1302 than the second extension flow path 1304.

[0500] On the other hand, in an embodiment of the present application, the driving portion 400 can rotate the drum 200 in a manner that the drum 200 rotates more in the other direction than in the one direction during the drying process of the laundry.

[0501] In addition, the drum 200 rotates in the other direction, and the air of the first extension flow path 1302 flowing in the one direction can flow into the inside of the drum 200.

[0502] Specifically, the laundry treating apparatus 10 according to an embodiment of the present application can rotate the drum 200 by the driving part 400 and air can be supplied to the inside of the drum 200 through the air flow part 130 in the drying course of the laundry.

[0503] The driving part 400 can rotate the drum 200 in such a manner that the amount of rotation of the drum 200 in the other direction is above the amount of rotation in the one direction during the process of supplying air from the air flow part 130. The driving part 400 can adjust the direction and speed of rotation by the control part.

[0504] As described above, in an embodiment of the present application, the first extension flow path 1302 can extend in the one direction from the air supply part 106 and the second extension flow path 1304 can extend in the other direction.

[0505] Therefore, air flowing through the first extension flow path 1302 can flow in the one direction and air flowing through the second extension flow path 1304 can flow in the other direction.

[0506] On the other hand, as described above, in an embodiment of the present application, a greater amount of air flow can be made to flow into the first extension flow path 1302 than the second extension flow path 1304, and thus, it is important to improve the flowability of air supplied to the air passing part 230 through the first extension flow path 1302.

[0507] Accordingly, the control part can rotate the drum 200 in such a manner that the amount of rotation of the drum 200 in the other direction is greater than the amount of rotation in the one direction by controlling the driving part 400 in the drying course of the laundry, and thus, the relative speed of air flowing in the one direction along the first extension flow path 1302 with respect to the air passing part 230 rotating in the other direction increases, thereby enabling the inflow amount into the inside of the drum 200 through the air passing part 230 to be effectively increased.

[0508] In addition, as described above, in the case where the drum 200 rotates in the other direction, the laundry inside the drum 200 can rotate in the other direction along the inner side surface of the drum 200 at the lower side inside the drum 200 due to the friction between the laundry and the drum peripheral surface 290 or the action of the laundry lifting ribs 280, etc.

[0509] At this time, the laundry inside the drum 200 lifted to the upper portion can fall down from the uppermost end of the drum 200 or a point spaced apart in the one direction from the uppermost end due to the weight.

[0510] Therefore, in the interior of the drum 200, the distribution degree of laundry in a region spaced apart from the uppermost end of the drum 200 to the other direction side with reference to the inner side surface of the drum 200 is low, so that air is easily introduced, and the contact area between the introduced air and the laundry is increased, thereby contributing to the drying efficiency, and thus, the region can correspond to a concentrated introduction region of air for drying the laundry.

[0511] Thus, in an embodiment of the present application, the main rotation direction of the drum 200 is set to the other direction, and a large amount of air is caused to flow to the air supply part 106 or the first extension flow path 1302 extending to the one direction from the introduction extension part 138, so that air can be effectively introduced into the interior of the drum 200 through the air flow part 130, and the flow resistance of air can be effectively improved and the drying efficiency of laundry can be improved.

[0512] The drum 200 can rotate only to the other direction in the entire laundry drying program, or rotate to the one direction and the other direction, and the rotation amount to the other direction is above the rotation amount to the one direction.

[0513] On the other hand, not only can the main rotation direction of the drum 200 be determined with reference to the air flow amount of the first extension flow path 1302 and the second extension flow path 1304, but also the main rotation direction of the drum 200 can be first determined, and then the air flow amount to the first extension flow path 1302 and the second extension flow path 1304 from the air supply part 106 and the introduction guide part 137 can be determined according to the main rotation direction of the drum 200.

[0514] On the other hand, with reference to Figure 23 and Figure 24 , the first extension flow path 1302 and the second extension flow path 1304 can be formed between the flow inner circumferential surface 133 and the flow outer circumferential surface 134, and the separation distance L2 of the introduction guide part 137 from the flow outer circumferential surface 134 on the first extension flow path 1302 can be set to be smaller than the separation distance L3 from the flow outer circumferential surface 134 on the second extension flow path 1304.

[0515] As described above, in an embodiment of the present application, the introduction guide part 137 can be formed by a portion of the flow inner circumferential surface 133 protruding to the air supply part 106 side. On the other hand, the protruding direction of the introduction guide part 137 can be designed to be closer to the first extension flow path 1302 than the second extension flow path 1304.

[0516] The air inflow region of the first and second extended flow paths 1302 and 1304 facing the air supply portion 106 can be defined between the inflow guide portion 137 and the flow outer peripheral surface 134. The separation distance L2 of the inflow guide portion 137 from the flow outer peripheral surface 134 on the first extended flow path 1302 can be formed to be smaller than the separation distance L3 from the flow outer peripheral surface 134 on the second extended flow path 1304.

[0517] For example, in an embodiment of the present application, the inflow guide portion 137 can protrude in the radial direction of the air flow portion 130, and the protruding direction thereof can be formed to be closer to the first extended flow path 1302 than the second extended flow path 1304.

[0518] That is, the width of the first extended flow path 1302 defined by the inflow guide portion 137 and the flow outer peripheral surface 134 can be formed to be smaller than the second extended flow path 1304. A portion of the air flowing toward the first extended flow path 1302 can be prevented from flowing into the first extended flow path 1302 and directed toward the second extended flow path 1304.

[0519] On the other hand, Figure 25 and Figure 26 The outflow guide portion 136 of an embodiment of the present application is illustrated. In an embodiment of the present application, the air guide portion can include the outflow guide portion 136.

[0520] Referring to Figure 25 and Figure 26 , the outflow guide portion 136 can protrude from the flow recessed surface 132 of the air flow portion 130, which is located behind the flow space 135, toward the air passing portion 230 to guide the air flow of the flow space 135 toward the air passing portion 230.

[0521] In an embodiment of the present application, the air can flow in the circumferential direction of the air flow portion 130 in the flow space 135, and can flow toward the front through the open front surface 131 of the air flow portion 130. However, the main flow direction of the air in the flow space 135 does not face the front, and thus, in an embodiment of the present application, the air flow of the flow space 135 can be guided toward the front by the outflow guide portion 136.

[0522] The outflow guide portion 136 can be provided to protrude from the flow recessed surface 132 toward the front, i.e., from the air passing surface 239. The air flowing through the outflow flow portion can generate a flow toward the front due to the protrusion of the outflow flow portion.

[0523] Thus, in an embodiment of the present application, the air can effectively flow out from the air flow portion 130 via the open front surface 131, and the air can be supplied from the air flow portion 130 to the inside of the drum 200 through the air passing portion 230.

[0524] The shape or number of the outflow guide portion 136 can be different, Figure 25 and Figure 26 A case where the flow recessed surface 132 is formed to protrude toward the front and the outflow guide portion 136 is formed is shown.

[0525] On the other hand, in an embodiment of the present application, the outflow guide portion 136 can be connected with the flow outer peripheral surface 134 and the flow inner peripheral surface 133. That is, the outflow guide portion 136 can be connected with the flow recessed surface 132, the flow outer peripheral surface 134, and the flow inner peripheral surface 133 to guide the air flow toward the front side.

[0526] If the outflow guide portion 136 is spaced apart from the flow inner peripheral surface 133 or the flow outer peripheral surface 134, the air can flow toward the space between the outflow flow portion and the flow inner peripheral surface 133 or the flow outer peripheral surface 134, thereby causing the air flow to be unable to be guided toward the front by the outflow guide portion 136.

[0527] Therefore, in an embodiment of the present application, the outflow guide portion 136 is provided to be connected with the flow outer peripheral surface 134 and the flow inner peripheral surface 133, thereby being able to guide all of the air flowing through the outflow guide portion 136 toward the front.

[0528] On the other hand, in an embodiment of the present application, the outflow guide portion 136 can be formed by the flow recessed surface 132 being bent or curved toward the air passing portion 230. That is, the outflow guide portion 136 can be provided as a part of the flow recessed surface 132.

[0529] For example, the outflow guide portion 136 can be formed together in a process of pressing the air flow portion 130 on the rear plate 110 by a press process or the like. Figure 14 A case where the outflow guide portion 136 is viewed from the rear is shown for an embodiment of the present application.

[0530] The outflow guide portion 136 can be connected with the flow outer peripheral surface 134 and the flow inner peripheral surface 133, and thus a space can be formed in the rear of the outflow guide portion 136 by the flow recessed surface 132 being recessed toward the front together with the flow outer peripheral surface 134 and the flow inner peripheral surface 133.

[0531] On the other hand, an embodiment of the present application can include a power line 405. The power line 405 can be drawn from the driving mounting portion 120 at the rear of the rear plate 110, and can supply power to the driving portion 400.

[0532] The power line 405 can extend along the mounting side surface 124 and / or the mounting front surface 122 behind the drive mounting portion 120, and can be guided from the drive mounting portion 120 to the outside behind the rear plate 110. The power line 405 can be connected with the power port 404 provided to the mounting front surface 122 or the mounting side surface 124 of the drive mounting portion 120.

[0533] On the other hand, the rear side of the outflow guide portion 136 of the air flow portion 130 can be recessed toward the front to form a space for the power line 405 to pass through and extend. As described above, in an embodiment of the present application, a portion of the flow recessed surface 132 can be raised in a manner protruding toward the front to form the outflow guide portion 136.

[0534] The outflow guide portion 136 can be connected with the flow outer peripheral surface 134 and the flow inner peripheral surface 133, and thus a space can be formed behind the outflow guide portion 136, which is open in the radial direction of the air flow portion 130 and recessed toward the front.

[0535] The power line 405 extending from the drive mounting portion 120 can extend along the back surface of the outflow guide portion 136, and pass through the outflow guide portion 136 to extend to the outside of the air flow portion 130. The power line 405 can pass through the expanded protruding area of the rear protruding portion 140 and be introduced into the inside of the case 100.

[0536] In an embodiment of the present application, if the air flow portion 130 surrounding the drive mounting portion 120 is protruded rearward from the rear plate 110, and the power line 405 extending from the rear of the rear plate 110 to the outside of the drive mounting portion 120 passes through the air flow portion 130 and extends to the outside of the air flow portion 130, the extension length of the power line 405 can be increased by the air flow portion 130 protruded rearward.

[0537] In addition, in an embodiment of the present application, the rear cover 500 is combined to the rear side of the rear plate 110, and the power line 405 extending across the flow recessed surface 132 of the air flow portion 130 or the like can cause structural interference in the combination between the rear cover 500 and the rear plate 110, for example, to separate the flow cover rear surface 514 of the rear cover 500 from the flow recessed surface 132, or to separate the flow cover outer peripheral surface 512 from the flow outer peripheral surface 134, or the like.

[0538] Accordingly, in an embodiment of the present application, while the outflow guide portion 136 is formed to flow the air of the flow space 135 to the front side, the outflow guide portion 136 is provided as a part of the flow recessed surface 132, and a space recessed to the front side and opened to the radial direction of the air flow portion 130 is formed at the rear side of the outflow guide portion 136, so that the influence of the coupling of the power line 405 drawn from the driving mounting portion 120 to the rear cover 500 can be minimized, and the power line 405 can be stably fixed and extended.

[0539] Referring again to Figure 25 and Figure 26 In an embodiment of the present application, the outflow guide portion 136 can include a guide central portion 1366 and a guide inclined portion 1368. The guide central portion 1366 can protrude from the flow recessed surface 132 to the air passing portion 230.

[0540] The guide inclined portion 1368 can extend from the guide central portion 1366 in the circumferential direction of the air flow portion 130, and as it is distanced from the flow central portion 1366, the protrusion height thereof from the flow recessed surface 132 can decrease.

[0541] The outflow guide portion 136 including the guide central portion 1366 and the guide inclined portion 1368 can be provided in the form of a small slope in the flow space 135. The guide central portion 1366 can include a region in which the outflow guide portion 136 is most protruded from the flow recessed surface 132, and the guide inclined portion 1368 can extend in one direction and the other direction, respectively.

[0542] The guide inclined portion 1368 can extend from the guide central portion 1366 in one direction or the other direction, and can be provided such that the protrusion height thereof from the flow recessed surface 132 gradually decreases as it is distanced from the guide central portion 1366.

[0543] The guide central portion 1366 and the guide inclined portion 1368 can be integrally formed with the flow recessed surface 132, the flow outer circumferential surface 134, and the flow inner circumferential surface 133, and can be provided in the form of a curved surface or a flat surface.

[0544] In an embodiment of the present application, the outflow guide portion 136 can be provided with a flow inclined portion at one direction side and / or the other direction side of the flow central portion 1366 protruding from the flow recessed surface 132 to the air passing portion 230, so that the generation of turbulent flow of the air passing through the outflow guide portion 136 can be minimized.

[0545] On the other hand, Figure 23 a first outflow guide portion 1362 provided in the air flow portion 130 of an embodiment of the present application is shown, Figure 25A case in which the first outflow guide portion 1362 is enlarged and indicated is shown.

[0546] In an embodiment of the present application, the outflow guide portion 136 can include a first outflow guide portion 1362. The first outflow guide portion 1362 can be located on the opposite side of the inflow extension portion 138 with reference to the center of the air flow portion 130 in the form of a ring.

[0547] As described above, the air flow portion 130 can include a first extension flow path 1302 and a second extension flow path 1304, which can be connected to each other on the opposite sides of the air supply portion 106 with reference to the center of the air flow portion 130, for example, with reference to the driving mounting portion 120.

[0548] That is, air flowing in one direction along the first extension flow path 1302 and air flowing in the other direction along the second extension flow path 1304 can meet on the opposite sides of the air supply portion 106 in the air flow portion 130.

[0549] Air of the first extension flow path 1302 and air of the second extension flow path 1304, which meet each other on the opposite sides of the air supply portion 106 in the air flow portion 130, have flow directions facing each other, and thus air streams flowing in opposite directions collide with each other on the opposite sides of the air supply portion 106 in the air flow portion 130 and form turbulent flow, generating noise and vibration, and possibly generating a loss of flow rate and flow pressure.

[0550] Thus, in an embodiment of the present application, since the first outflow guide portion 1362 is disposed on the opposite sides of the air supply portion 106 in the air flow portion 130, that is, at the positions at which the first extension flow path 1302 and the second extension flow path 1304 are connected, air of the first extension flow path 1302 and air of the second extension flow path 1304 can flow forward through the first outflow guide portion 1362 and into the inside of the drum 200 through the air passing portion 230 in a state in which they do not collide with each other.

[0551] Further, as described above, it can be advantageous to concentrate air supply to a region located in one direction at the uppermost end inside the drum 200, and in the first extension flow path 1302 facing the region, the flow pressure of the uppermost end of the drum 200 and a region spaced apart from the uppermost end in one direction increases, and thus it can be advantageous to increase the air flow rate flowing forward.

[0552] Thus, in an embodiment of the present application, the first outflow guide portion 1362 is provided at the connection point of the first extension flow path 1302 and the second extension flow path 1304, and due to the increase in flow resistance caused by the first outflow guide portion 1362, the flow pressure of the first extension flow path 1302 can increase on the upstream side of the first outflow guide portion 1362.

[0553] That is, the first extended flow path 1302 extending along the upper portion of the air flow portion 130 can form a strong flow pressure of air at the upstream side of the first outflow guide portion 1362, for example, the uppermost end of the air flow portion 130 or a region located in one direction of the uppermost end, by the first outflow guide portion 1362, whereby the air flow from the uppermost end of the drum 200 and the region located in one direction of the uppermost end to the air passing portion 230 can be effectively increased.

[0554] On the other hand, referring to Figure 25 In an embodiment of the present application, the maximum protrusion height of the first outflow guide portion 1362 can be set to be equal to or greater than the depth of the flow space 135. For example, the protruding end portion of the first outflow guide portion, that is, the guide central portion 1366 can be disposed in parallel with the rear protrusion surface 149, or can protrude more forward than the rear protrusion surface 149.

[0555] As described above, the first outflow guide portion 1362 can prevent the air of the first extended flow path 1302 and the air of the second extended flow path 1304 from colliding with each other, and can form the maximum flow pressure at the upstream side of the first outflow guide portion 1362 by increasing the flow resistance of the first extended flow path 1302.

[0556] That is, the first outflow guide portion 1362 can be disposed to inhibit the air from passing through the first outflow guide portion 1362 in one direction or another direction, whereby the height at which the first outflow guide portion 1362 protrudes from the flow recessed surface 132 can be set to be equal to or greater than the depth of the air flow portion 130.

[0557] On the other hand, Figure 23 A second outflow guide portion 1364 of an embodiment of the present application disposed in the air flow portion 130 is shown, Figure 26 A case in which the second outflow guide portion 1364 is enlarged is shown.

[0558] Referring to Figure 23 and Figure 26 In an embodiment of the present application, the outflow guide portion 136 can include a second outflow guide portion 1364, which can be disposed between the inflow extension portion 138 and the first outflow guide portion 1362, thereby guiding the air of the flow space 135 to the air passing portion 230.

[0559] The second outflow guide portion 1364 can be disposed between the first outflow guide portion 1362 and the inflow extension portion 138 or the air supply portion 106. That is, the second outflow guide portion 1364 can be located within the first extended flow path 1302 or the second extended flow path 1304, and guide the air passing through the second outflow guide portion 1364 to flow to the front side.

[0560] Air flowing along the air flow space 135 can flow to the front side through the open front surface 131 of the air flow portion 130 as the flow pressure increases or diffuses. However, different flow pressures are formed at each location of the air flow portion 130 for various reasons, and thus the amount of air flowing to the front side can be different.

[0561] In addition, in order to improve the drying efficiency of laundry, the flow pressure of air at a specific region of the air flow portion 130 can be strategically increased, and the amount of air flowing out can also be increased.

[0562] Thus, in an embodiment of the present application, the second outflow guide portion 1364 can be disposed at a region where the flow pressure of air is formed to be excessively low due to various reasons, or at a region where the amount of air flowing out needs to be increased from the strategic point of view of improving the drying efficiency or the energy efficiency ratio.

[0563] Under the effect of the second outflow guide portion 1364, the amount of air flowing out from the air flow portion 130 to the air passing portion 230 can be increased as a whole, and the uniformity of air flowing out from the air flow portion 130 can be increased, or the amount of air flowing out at a specific location can be effectively improved.

[0564] On the other hand, in an embodiment of the present application, the second outflow guide portion 1364 can be disposed on the second extension flow path 1304.

[0565] As described above, in an embodiment of the present application, in order to improve the drying efficiency of laundry and improve the flowability of air flowing into the inside of the drum 200, more air can flow from the second extension flow path 1304 to the first extension flow path 1302.

[0566] Thus, the air flow of the second extension flow path 1304 is relatively less than that of the first extension flow path 1302, and thus the flow pressure of air in the second extension flow path 1304 is relatively low, and thus the amount of air flowing to the front side can be less.

[0567] Thus, in an embodiment of the present application, by providing the second outflow guide portion 1364 at the second extension flow path 1304, a flow of air flowing through the second extension flow path 1304 is formed to pass through the second outflow guide portion 1364 and flow to the front side, and thus the amount of air flowing out to the air passing portion 230 can be effectively increased, and the uniformity of air supplied from the entire air flow portion 130 to the air passing portion 230 can be improved.

[0568] On the other hand, as described above, in one embodiment of the present application, the air supply portion 106 can be configured to discharge air from the inflow extension portion 138 toward the discharge direction B of the flow space 135 closer to the first extension flow path 1302 than the second extension flow path 1304.

[0569] Thus, the flow pressure of air of the first extension flow path 1302 is formed to be relatively high compared to the second extension flow path 1304, so that the outflow amount of air can be effectively ensured, and the second extension flow path 1304 can improve the flow pressure and improve the outflow amount of air by the second outflow guide portion 1364.

[0570] On the other hand, in one embodiment of the present application, the maximum protrusion height of the second outflow guide portion 1364 can be configured to be smaller than the depth of the flow space 135. In addition, the maximum protrusion height of the second outflow guide portion 1364 can be configured to be smaller than the maximum protrusion height of the first outflow guide portion 1362.

[0571] Unlike the first outflow guide portion 1362, the second outflow guide portion 1364 is provided on the first extension flow path 1302 or the second extension flow path 1304, and thus it is necessary to ensure the flow rate of air flowing through the second outflow guide portion 1364 to be at a prescribed level.

[0572] That is, the maximum protrusion height of the second outflow guide portion 1364 can be formed to be smaller than the depth of the flow space 135 to prevent the flow resistance of air flowing through the air flow portion 130 from excessively increasing, and to enable air to flow through the second outflow guide portion 1364 and flow throughout the flow space 135.

[0573] Thus, in one embodiment of the present application, the maximum protrusion height of the first outflow guide portion 1362 can be configured to be equal to or greater than the depth of the flow space 135, and the maximum protrusion height of the second outflow guide portion 1364 can be formed to be smaller than the depth of the flow space 135 and smaller than the first outflow guide portion 1362.

[0574] Although the present application has been illustrated and described with respect to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the application as provided in the appended claims.

Claims

1. A garment processing device, wherein, include: The enclosure has a rear panel on its rear side; A roller, rotatably disposed inside the housing to hold clothing, has a back surface facing the back panel located on its rear side; and The base portion is positioned below the roller to circulate air inside the roller; The back of the roller includes an air passage, into which air supplied from the air flow section included in the rear plate flows. The garment handling device further includes an air supply unit, which is disposed on the base portion and supplies air to the air flow portion; An airflow space is formed inside the airflow section to allow air discharged from the air supply section to flow, and the airflow space is open to the front and faces the back of the roller; The airflow unit also includes: The inner peripheral surface of the flow extends along the inner periphery of the flow space; as well as An inflow guide is provided on the inner peripheral surface of the flow and protrudes toward the air supply section. It has a shape that protrudes forward from the flow recess behind the flow space and guides the flow of air discharged from the air supply section toward the air flow section. The airflow section extends in such a way that a portion of the inner circumferential surface of the flow section protrudes toward the air supply section to form the inflow guide section.

2. The garment processing apparatus according to claim 1, wherein, The airflow section further includes an outflow guide section, which protrudes from the flow recess towards the air passage section and guides the airflow in the flow space toward the air passage section.

3. The garment processing apparatus according to claim 2, wherein, The rear plate also includes a drive mounting portion, wherein a drive unit for providing rotational force to the roller is coupled to the drive mounting portion from the rear, and the drive mounting portion is surrounded by the airflow portion. A power line is provided behind the rear plate, the power line extending from the drive mounting part and supplying power to the drive part. The outflow guide is recessed forward from the back of the rear plate to form a space on the back of the rear plate for mounting the power lines.

4. The garment processing apparatus according to claim 2, wherein, The rear panel further includes an inflow extension that extends from the airflow section toward the air supply section and supplies air from the air supply section to the airflow section. The outflow guide also includes: The first outflow guide is located on the opposite side of the inflow extension, with the center of the annular airflow section as a reference; and The second outflow guide is disposed between the inflow extension and the first outflow guide to guide the airflow of the flow space toward the air passage.

5. The garment processing apparatus according to claim 4, wherein, The airflow section includes: A first extended flow path extends in one direction from the inflow extension to the first outflow guide; and The second extended flow path extends from the inflow extension in another direction to the first outflow guide. The amount of air supplied to the second extended flow path via the inflow extension is less than the amount of air supplied to the first extended flow path. The second outflow guide is disposed on the second extended flow path. The air supply unit is configured such that the direction in which air is discharged from the inflow extension into the flow space is closer to the first extension flow path than the second extension flow path.

6. The garment processing apparatus according to claim 4, wherein, The maximum protrusion height of the first outflow guide is above the depth of the flow space. The maximum protrusion height of the second outflow guide is less than the depth of the flow space.

7. The garment processing apparatus according to claim 1, wherein, The rear panel further includes an inflow extension that extends from the airflow section toward the air supply section and supplies air from the air supply section to the airflow section. The inflow guide is positioned opposite the inflow extension.

8. The garment processing apparatus according to claim 7, wherein, The airflow section includes: A first extended flow path extends from the inflow extension in one direction; and The second extended flow path extends from the inflow extension in another direction. The amount of air supplied to the first extended flow path via the inflow extension is greater than the amount of air supplied to the second extended flow path. The inflow guide directs a portion of the air flowing toward the first extended flow path toward the second extended flow path.

9. The garment processing apparatus according to claim 8, wherein, It also includes a drive unit, which is coupled to the rear plate and provides rotational force to the roller. The drive unit rotates the drum during the drying process in a manner that causes the amount of rotation of the drum in the other direction to be greater than the amount of rotation in the first direction. The drum rotates in the other direction, and air from the first extended flow path flowing in the first direction flows into the interior of the drum.

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