Drum-type laundry treatment device

Abstract

The utility model provides a drum-type clothes processing device. The drum-type clothes processing device can increase the air suction amount through a simple structure and can achieve miniaturization in the height direction. The drum-type laundry treating apparatus includes: a housing; an outer cylinder supported in the housing; an inner tub rotatably mounted in the outer tub and receiving clothes; the outer cylinder is provided with a clothes input opening, a first air suction opening is formed in a part of the wall part, surrounding the clothes input opening, of the outer cylinder, the first air suction opening faces the front portion of the drum-type clothes processing device and is connected with the drying device through an air suction pipe, and a machine door assembly is arranged on the shell. The machine door assembly is used for opening and closing the clothes input opening, a window body sealing ring is installed at the clothes input opening of the outer barrel, when the machine door assembly closes the clothes input opening, the window body sealing ring is located between the outer barrel and the machine door assembly, a second air suction opening is formed in the window body sealing ring, and the second air suction opening is communicated with the air suction pipe.

Description

Technical Field

[0001] The utility model relates to a drum - type clothes processing device, and more particularly, to a drum - type clothes processing device with a drying device, which can increase the air intake volume with a simple structure and can be miniaturized in the height direction. Background Art

[0002] At present, the demand for drum - type clothes processing devices with a drying function is increasing. Such drum - type clothes processing devices include all - in - one washing and drying machines that combine washing and drying functions, and clothes dryers that only have a drying function, etc. Among them, the built - in drum - type clothes processing device that can be installed on a balcony or the like is highly favored. Compared with the ordinary drum - type clothes processing device, the built - in drum - type clothes processing device has higher requirements for miniaturization, especially miniaturization in the height direction, which is beneficial to saving installation space.

[0003] In addition, in the drum - type clothes processing device, as a method for realizing the drying function, the heat pump system is being increasingly adopted due to its advantages such as energy conservation and gentleness to clothes. In the drum - type clothes processing device equipped with a heat pump system, the heat pump system is usually arranged above the outer cylinder.

[0004] In Patent Document 1, a drum - type washing and drying machine with a heat pump device arranged above the outer cylinder is disclosed. Among them, a discharge port is formed in the upper part of the peripheral wall of the outer cylinder, and the air in the outer cylinder is discharged from the outer cylinder through the discharge port and enters the heat pump device. However, in Patent Document 1, since the discharge port is located in the upper part of the peripheral wall of the outer cylinder and opens upward, and the pipe body connecting the discharge port and the heat pump device extends further upward from the discharge port, the size of the drum - type washing and drying machine in the height direction may be large, and it may be difficult to meet the requirements for miniaturization in the height direction of the built - in drum - type clothes processing device.

[0005] In order to achieve miniaturization in the height direction, the following structure is proposed: the air suction port connected to the heat pump device is arranged at a part of the wall of the outer cylinder around the clothes inlet, and opens forward of the clothes processing device. However, since such a structure is equivalent to arranging the air suction port on the front side of the frame, the space position is narrow, and the area of the wall of the outer cylinder around the clothes inlet is limited, so the main air suction surface cannot be made large, resulting in insufficient air intake volume.

[0006] In Patent Document 2, a drying component with two air inlets, namely a main air inlet and an auxiliary air inlet, is disclosed. However, in Patent Document 2, the two air inlets are arranged on different sides, which also increases the complexity of the air duct structure.

[0007] Prior Art

[0008] Patent Document 1: CN102108623A

[0009] Patent Document 2: CN117904851A Summary of the Utility Model

[0010] Problems to be Solved by the Utility Model

[0011] The purpose of the present application is to provide a drum - type laundry treating apparatus including a drying device, which can increase the air suction volume with a simple structure and can be miniaturized in the height direction.

[0012] Solutions for Solving the Problems

[0013] A technical solution of the present utility model provides a drum - type laundry treating apparatus, which is characterized in that the drum - type laundry treating apparatus includes: a housing; an outer cylinder supported within the housing; an inner cylinder rotatably installed within the outer cylinder for receiving laundry; and a drying device for drying the laundry within the inner cylinder by using heated air. The outer cylinder has a laundry inlet, and a first air suction opening is provided locally on the wall portion of the outer cylinder surrounding the laundry inlet, the first air suction opening opens towards the front of the drum - type laundry treating apparatus, and is connected to the drying device via an air suction pipe. A door assembly is provided on the housing, and the door assembly is used to open and close the laundry inlet. A window seal ring is installed at the laundry inlet of the outer cylinder. When the door assembly closes the laundry inlet, the window seal ring is interposed between the outer cylinder and the door assembly. A second air suction opening is provided on the window seal ring, and the second air suction opening communicates with the air suction pipe.

[0014] In the above - mentioned structure, the first air suction opening is provided locally on the wall portion of the outer cylinder surrounding the laundry inlet and opens towards the front. Compared with the structure located at the upper part of the peripheral wall of the outer cylinder and opening upwards, the size in the height direction can be suppressed, which is helpful for miniaturization. And on the basis of the above - mentioned miniaturization, a secondary air duct is formed based on the second air suction opening. The secondary air duct is still connected to the air suction pipe, and no additional air suction pipe is provided for air guiding. Therefore, while increasing the air suction volume, the structure is not made complex. In addition, it can prevent air from directly entering between the inner cylinder and the outer cylinder without passing through the laundry in the inner cylinder.

[0015] Preferably, a first opening and a second opening are provided on the air suction pipe. The first opening is communicated with the first air suction opening, and the second opening is connected to the second air suction opening through an inner sleeve of a pipe joint.

[0016] Thus, a secondary air duct can be reliably formed, which is convenient for assembly.

[0017] Preferably, a first opening and a second opening are provided on the air suction pipe. The first opening is communicated with the first air suction opening, and the second opening is integrally formed with the second air suction opening.

[0018] Thus, a secondary air duct can be formed more reliably without air leakage.

[0019] Preferably, the drying device is located above the outer cylinder.

[0020] Thus, the space above the outer cylinder can be fully utilized.

[0021] Preferably, in the vertical direction, the first air suction port is provided in the upper half of the wall portion.

[0022] Thus, the distance of the air passage between the inner cylinder and the drying device can be shortened, and the heat loss of the hot air in the air passage can be reduced.

[0023] Preferably, a flange portion surrounding the front opening is provided on the inner cylinder, the flange portion extends inward, and ventilation holes are provided in the flange portion to communicate the inside and outside of the inner cylinder.

[0024] Thus, ventilation holes can be formed on the front side of the inner cylinder for the air inside the inner cylinder to blow out from the front side, and the air suction volume can be further increased. And it can prevent the air from directly entering the space between the inner cylinder and the outer cylinder without passing through the clothes in the inner cylinder.

[0025] Another technical solution of the present utility model provides a drum-type laundry treatment device, characterized in that the drum-type laundry treatment device includes: a housing; an outer cylinder supported in the housing; an inner cylinder rotatably installed in the outer cylinder for storing clothes; and a drying device for drying the clothes in the inner cylinder with heated air. The outer cylinder has a clothes inlet, and a first air suction port is provided in a part of the wall portion of the outer cylinder surrounding the clothes inlet, the first air suction port opens forward of the drum-type laundry treatment device, and is connected to the drying device via a suction air pipe. A flange portion surrounding the front opening is provided on the inner cylinder, the flange portion extends inward, and ventilation holes are provided in the flange portion to communicate the inside and outside of the inner cylinder.

[0026] Thus, ventilation holes can be formed on the front side of the inner cylinder for the air inside the inner cylinder to blow out from the front side, the air suction volume can be increased with a simple structure and miniaturization in the height direction can be achieved. In addition, it can prevent the air from directly entering the space between the inner cylinder and the outer cylinder without passing through the clothes in the inner cylinder.

[0027] Preferably, the ventilation holes are distributed in the circumferential direction of the inner cylinder.

[0028] Thus, the air suction volume can be further increased, and the air for drying the clothes can flow evenly in the inner cylinder, which is beneficial to uniform drying.

[0029] Preferably, the ventilation holes are located at the rear side of the first air suction port.

[0030] Thus, it helps the air blown out from the ventilation holes to enter the first air suction port and reduces the air loss.

[0031] Preferably, the drying device is located above the outer cylinder.

[0032] Thus, the space above the outer cylinder can be fully utilized.

[0033] Preferably, in the vertical direction, the first air inlet is provided in the upper half of the wall portion.

[0034] Thus, the distance of the air duct between the inner cylinder and the drying device can be shortened, and the heat loss of the high-temperature air in the air duct can be reduced.

[0035] Effects of the utility model

[0036] Based on the drum-type laundry treating apparatus of the present application, it can increase the air suction amount with a simple structure and can achieve miniaturization in the height direction. Description of the drawings

[0037] Figure 1 It is a perspective view of the drum-type laundry treating apparatus.

[0038] Figure 2 It is a top view of the drum-type laundry treating apparatus.

[0039] Figure 3 It is Figure 2 A sectional view taken along the line A-A in

[0040] Figure 4 It is a perspective view of the drum-type laundry treating apparatus with the outer shell removed.

[0041] Figure 5 It is a perspective view of the drying device from one perspective.

[0042] Figure 6 It is a perspective view of the drying device from another perspective.

[0043] Figure 7 It is a perspective view of the rear half of the outer cylinder.

[0044] Figure 8 It is a perspective view of the front half of the outer cylinder.

[0045] Figure 9 It is a schematic diagram of air suction through the air suction pipe.

[0046] Figure 10 It is Figure 9 A sectional view taken along the line B-B in

[0047] Description of reference numerals

[0048] 1: Drum - type laundry treatment device; 10: Housing; 11: Right wall panel; 12: Front wall panel; 14: Upper space part; 20: Outer cylinder; 201: Air supply port; 21: Laundry inlet; 24: Outer cylinder fitting; 241: First air suction port; 30: Inner cylinder (drum); 40: Drying device; 50: Air duct housing; 51: Air suction pipe; 511: Bellows part; 52: Air outlet part; 521: First pipe; 5211: Bellows part; 522: Second pipe; 53: Housing main body; 54: First opening; 55: Second opening; 56: Air outlet; 57: Upper housing; 571: Partition; 58: Lower housing; 581: Bottom wall part; 582: Peripheral wall part; 583: Compressor accommodation part; 60: Evaporator; 61: Windward surface; 62: Air outlet surface; 63: Upper end; 64: Lower end; 70: Condenser; 71: Windward surface; 72: Air outlet surface; 73: Upper end; 74: Lower end; 80: Fan; 85: Compressor; X: Rotation axis; S1: First air duct area; S2: Second air duct area; S3: Third air duct area. Detailed implementation mode

[0049] In the following description, the laundry inlet 21 of the drum - type laundry treatment device 1 is defined as the front side, the side opposite to the laundry inlet 21 is defined as the rear side, the side where the drying device 40 is located is defined as the upper side, the side opposite to the drying device 40 is defined as the lower side, and Figure 1 the side where the right wall panel 11 in

[0050] <Overall structure of the drum - type laundry treatment device>

[0051] As Figures 1 to 3 shown, the drum - type laundry treatment device 1 includes: a housing 10; an outer cylinder 20, which is supported inside the housing 10; an inner cylinder (drum) 30, which is rotatably installed inside the outer cylinder 20 for storing laundry; and a drying device 40, which dries the laundry inside the drum - type laundry treatment device 1 (i.e., inside the inner cylinder 30) using heated air.

[0052] As Figure 1 shown, the housing 10 forms a substantially rectangular - parallelepiped - shaped outline of the drum - type laundry treatment device 1, including a left wall panel (not shown), a right wall panel 11, a front wall panel 12, a rear wall panel (not shown), and a top wall panel (not shown) formed by plates such as metal plates and resin plates. For the convenience of observing the structure inside the housing 10, some or all of the wall panels constituting the housing 10 are appropriately omitted in each drawing.

[0053] As Figure 1 and Figure 3As shown, the outer cylinder 20 has a bottomed cylindrical shape with a laundry inlet 21 at one end. The outer cylinder 20 is installed in the housing 10 with the laundry inlet 21 facing forward, and is elastically supported by a shock absorber on the lower side and a suspension spring on the upper side in the housing 10, thereby preventing the vibration of the outer cylinder 20 from being transmitted to the housing 10. In addition, the drum-type laundry treatment apparatus 1 further includes a door assembly (not shown) for opening and closing the laundry inlet 21. When the door assembly is closed, the laundry inlet 21 is closed.

[0054] As Figure 3 shown, the inner cylinder 30 has a bottomed cylindrical shape with an open end at one end and is used for storing laundry. The inner cylinder 30 is installed in the outer cylinder 20 with the open end facing the laundry inlet 21 of the outer cylinder 20. A plurality of fine holes can be formed in the wall portion on the outer peripheral side and the bottom side wall portion of the inner cylinder 30, whereby washing water and heated air generated by the drying device 40 can flow between the outer cylinder 20 and the inner cylinder 30. In addition, the inner cylinder 30 is driven by a motor (not shown) and can rotate about a rotation axis X extending in the horizontal direction. Among them, the rotation direction of the inner cylinder 30 can be the clockwise direction when viewed from the front in Figure 3 or the counterclockwise direction, or can continuously switch between the clockwise direction and the counterclockwise direction. In addition, the rotation axis X of the inner cylinder 30 can also be inclined upward toward the laundry inlet 21.

[0055] <Structure of the drying device>

[0056] As Figure 2 shown, when the top wall plate is omitted, the air duct housing 50 of the drying device 40 can be seen.

[0057] Figure 3 is Figure 2 a sectional view taken along the line A-A of Figure 3 shown. As

[0058] shown, an integrated drying device 40 is disposed in the upper space portion 14 above the outer cylinder 20 in the housing 10, whereby the space above the outer cylinder 20 can be fully utilized. The drying device 40 dries the laundry in the inner cylinder 30 using heated air. The upper space portion 14 refers to the space sandwiched by the top wall plate and the upper arc-shaped outer peripheral surface of the outer cylinder 20 in the vertical direction, and includes not only the space above the highest part of the outer cylinder 20 but also the left and right sides of the highest part and the space slightly below the highest part.

[0058] As Figures 3 to 6As shown in the figure, the drying device 40 includes: an air duct housing 50 having a first opening 54, a second opening 55, and an air outlet 56. The first opening 54 and the second opening 55 are located on the front side or the upper side of the outer cylinder 20, and the air outlet 56 is located on the rear side of the outer cylinder 30. The first opening 54, the second opening 55, and the air outlet 56 are respectively communicated with the inner cavity of the drum-type laundry treating device 1 (i.e., the inner cavity of the inner cylinder 30); an evaporator 60 disposed in the air duct housing 50 for dehumidifying the air flowing in the air duct housing 50 and led out from the inner cylinder 30; a condenser 70 disposed in the air duct housing 50 at a position downstream of the evaporator 60 in the air flow direction for heating the air passing through the evaporator 60; and a blower 80 disposed in the air duct housing 50 at a position downstream of the condenser 70 in the air flow direction for causing the air to flow, thereby introducing the air in the inner cylinder 30 into the air duct housing 50 through the first opening 54 and introducing the air passing through the evaporator 60 and the condenser 70 into the inner cylinder 30 through the air outlet 56. In addition, the drying device 40 further includes a compressor 85 for compressing the refrigerant flowing in the evaporator 60 and the condenser 70.

[0059] As Figures 5 to 6 shown, the air duct housing 50 includes: a suction air pipe 51 extending substantially in the vertical direction, having the first opening 54 and the second opening 55 at its lower end. At least a part of the suction air pipe 51 is made of an elastic material such as rubber. The lower end of the suction air pipe 51 is connected to the outer cylinder 20 by means of an outer cylinder fitting 24 (refer to Figure 4 ), and is communicated with the inner cavity of the inner cylinder 30 through the fine holes in the wall of the inner cylinder 30; an air outlet member 52 having an air outlet 56 at its lower end. The lower end of the air outlet member 52 is connected to the outer cylinder 20 on the rear side wall (i.e., the bottom wall) of the outer cylinder 20, and is communicated with the inner cavity of the inner cylinder 30 through an air supply port 201 provided on the bottom wall of the outer cylinder 20 (refer to Figure 7 ), and the air flowing out from the air outlet 56 flows into the outer cylinder 20 through the air supply port 201; and a housing main body 53 connected between the suction air pipe 51 and the air outlet member 52. In addition, as Figures 5 to 6 shown, the suction air pipe 51 includes a telescopic corrugated pipe portion 511 to prevent the vibration of the outer cylinder 20 from being transmitted to the housing main body 53 through the suction air pipe 51. The air outlet member 52 includes a first pipe 521 having a telescopic corrugated pipe portion 5211 connected to the housing main body 53 and a second pipe 522 connected to the first pipe 521 to prevent the vibration of the outer cylinder 20 from being transmitted to the housing main body 53 through the air outlet member 52.

[0060] As Figures 5 to 6As shown, the housing main body 53 has an upper housing 57 and a lower housing 58. The lower housing 58 is in the shape of a substantially cup opening upward, having a bottom wall portion 581 and a peripheral wall portion 582. An air suction pipe 51 is connected near the front end of the bottom wall portion 581, and an air outlet member 52 is connected to the peripheral wall portion 582 at the rear side. The upper housing 57 is in the shape of a substantially plate, and is fixed to the upper end of the peripheral wall portion 582 of the lower housing 58 by screws or the like. Inside the internal space of the housing main body 53 surrounded by the upper housing 57 and the lower housing 58, an evaporator 60, a condenser 70, and a blower 80 are arranged. In addition, a compressor accommodation portion 583 (refer to Figure 4 ) is continuously provided forward from the peripheral wall portion 582 at the front side, and the compressor accommodation portion 583 is in the shape of a substantially bottomed cylinder opening upward. The compressor 85 is arranged inside the housing main body 53 by being installed inside the compressor accommodation portion 583. Thus, the evaporator 60, the condenser 70, the blower 80, and the compressor 85 are arranged in the upper space portion 14 in an integrated structure by the housing main body 53.

[0061] As Figures 3 to 4 shown, the evaporator 60 is a substantially plate-shaped microchannel evaporator, and a pair of opposite plate surfaces respectively serve as a windward surface 61 and an air outlet surface 62, and air passes through the evaporator 60 from top to bottom. The evaporator 60 cools the high-humidity air flowing outside the evaporator 60 by absorbing heat of the refrigerant flowing inside, and causes water vapor in the air to condense on the surface of the evaporator 60 and precipitate as condensed water, thereby obtaining dry air. As Figure 3 shown, in the upper space portion 14, the evaporator 60 is arranged such that the windward surface 61 is on the upper side and the air outlet surface 62 is on the lower side, and the windward surface 61 and the air outlet surface 62 are inclined with respect to the horizontal line in the left-right direction, and the height of the right end is higher than the height of the left end, that is, the right end becomes the upper end 63 and the left end becomes the lower end 64. Thus, the humid air led out from the inner cylinder 30 enters the evaporator 60 from the upper windward surface 61, water vapor in the air condenses on the surface of the evaporator 60 and precipitates as condensed water, and the condensed water separates from the surface of the evaporator 60 under the dual action of its own gravity and the downward flowing air, which is beneficial to discharging the condensed water. In addition, the evaporator 60 is located directly above the rotation axis X of the inner cylinder 30. Here, "the evaporator 60 is located directly above the rotation axis X of the inner cylinder 30" means that there is more than one intersection point between the orthographic projection of the evaporator 60 on the horizontal plane and the orthographic projection of the rotation axis X of the inner cylinder 30 on the horizontal plane.

[0062] As Figures 3 to 4As shown, the condenser 70 is a substantially plate-shaped microchannel condenser. A pair of opposite plate surfaces respectively serve as the windward surface 71 and the air outlet surface 72, and air passes through the condenser 70 from bottom to top. The condenser 70 heats the dry air flowing outside the condenser 70 by releasing heat from the refrigerant flowing inside, thereby obtaining high-temperature and dry air. As Figure 3 shown, in the upper space portion 14, the condenser 70 is arranged such that the windward surface 71 is on the lower side and the air outlet surface 72 is on the upper side, and the windward surface 71 and the air outlet surface 72 are inclined with respect to the horizontal line in the left-right direction, and the height of the left end is higher than the height of the right end, that is, the left end becomes the upper end 73 and the right end becomes the lower end 74.

[0063] It should be noted that the evaporator 60 only needs to be able to dehumidify the air, and is not limited to the microchannel structure. For example, the evaporator 60 can also be a copper tube fin type structure. The condenser 70 only needs to be able to heat the air, and is not limited to the microchannel structure. Since the volume of the microchannel evaporator and the microchannel condenser is smaller than that of the traditional heat exchanger under the same heat exchange energy efficiency, which is beneficial to the miniaturization of the drum-type laundry processing device, therefore, considering both higher heat exchange energy efficiency and device miniaturization, preferably, at least one of the evaporator 60 and the condenser 70 is a microchannel structure, and in particular, the condenser 70 for heating the air is preferably a microchannel structure.

[0064] As Figure 3As shown, within the upper space portion 14, the condenser 70 is located on the right side of the evaporator 60. The evaporator 60 and the condenser 70 are arranged along the left-right direction, in other words, both are arranged along the rotational direction of the inner cylinder 30 around the rotational axis X. Specifically, the upper end 63 of the evaporator 60 and the upper end 73 of the condenser 70 are close to each other, and the lower end 64 of the evaporator 60 extends obliquely downward toward one side (left side) in the rotational direction of the inner cylinder 30, and the lower end 74 of the condenser 70 extends obliquely downward toward the other side (right side) in the rotational direction of the inner cylinder 30. When observed along the direction of the rotational axis X of the inner cylinder 30 (front-rear direction), the evaporator 60 and the condenser 70 are arranged in an inverted V shape. In addition, the height of the lower end 64 of the evaporator 60 is higher than the height of the lower end 74 of the condenser 70, so that the condenser 70 extends downward longer and the condenser 70 is made larger. Further, a V-shaped partition 571 is provided on the surface of the upper housing 57 in a downwardly concave manner. The partition 571 is provided between the evaporator 60 and the condenser 70 and abuts against the upper end 63 of the evaporator 60 and the upper end 73 of the condenser 70 respectively. By arranging the evaporator 60 and the condenser 70 along the rotational direction of the inner cylinder 30 and in a substantially inverted V shape, the space above the outer cylinder 20 can be fully utilized, the heat exchange areas of the evaporator 60 and the condenser 70 can be increased as much as possible, and thus the miniaturization in the height direction of the drum-type laundry treating apparatus can be ensured while improving the drying efficiency and shortening the drying time.

[0065] Among them, the above-mentioned "the evaporator 60 and the condenser 70 are arranged along the rotational direction of the inner cylinder 30" means that when observed along the direction of the rotational axis X of the inner cylinder 30, the position of the evaporator 60 in the rotational direction of the inner cylinder 30 is different from the position of the condenser 70 in the rotational direction of the inner cylinder 30. As a typical example, it can be that the orthographic projection of the evaporator 60 on the vertical plane orthogonal to the front-rear direction and the orthographic projection of the condenser 70 on the vertical plane orthogonal to the front-rear direction do not have an intersection point.

[0066] As Figure 4 shown, the blower 80 is arranged in the housing main body 53 of the air passage housing 50 behind the condenser 70 and at the portion of the housing main body 53 connected to the air outlet member 52. That is to say, the condenser 70 and the blower 80 are arranged along the direction of the rotational axis X of the inner cylinder 30 (i.e., the front-rear direction). Further, in the air flow direction within the air passage housing 50, the blower 80 is located on the downstream side of the condenser 70. Thus, the evaporator 60, the condenser 70, and the blower 80 are arranged in sequence from the upstream side of the air flow direction.

[0067] In addition, the blower 80 is located on the right side of the rotation axis X of the inner cylinder 30 in the left-right direction, and the air outlet 56 of the air outlet member 52 is located on the left side of the rotation axis X of the inner cylinder 30 in the left-right direction. It can also be that the blower 80 is located on the left side of the rotation axis X of the inner cylinder 30 in the left-right direction, and the air outlet 56 of the air outlet member 52 is located on the right side of the rotation axis X of the inner cylinder 30 in the left-right direction. That is to say, as long as the blower 80 and the air outlet 56 are located on opposite sides of the rotation axis X of the inner cylinder 30 in the left-right direction. Thus, it can be ensured that there is a relatively large installation space for the air supply pipeline (i.e., the air outlet member 52) provided between the blower 80 and the air outlet 56 of the air duct housing 50, avoiding an increase in the air loss of the air outlet member 52 due to multiple bends of the air outlet member 52 in a small space, which is beneficial to reducing the air loss of the air outlet member 52, and thus enabling the air blown from the blower 80 to flow more smoothly.

[0068] In addition, the blower 80 is arranged such that its rotation axis extends in a direction substantially perpendicular to the outer peripheral surface of the outer cylinder 20. By operating the blower 80, the low-temperature and high-humidity air inside the inner cylinder 30 is sucked into the housing main body 53 from the front side of the inner cylinder 30 via the suction pipe 51. The low-temperature and high-humidity air sucked into the housing main body 53 passes through the evaporator 60 from the upper windward surface 61. By utilizing the heat absorption effect of the refrigerant in the evaporator 60, the water vapor in the air condenses on the surface of the evaporator 60 and is precipitated as condensed water, thereby obtaining low-temperature and dry air. The low-temperature and dry air coming out from the air outlet surface 62 of the evaporator 60 passes through the condenser 70 from the lower windward surface 71. By utilizing the heat release effect of the refrigerant in the condenser 70, the air is heated, thereby obtaining high-temperature and dry air. The high-temperature and dry air coming out from the air outlet surface 72 of the condenser 70 enters the inner cylinder 30 from the rear side of the inner cylinder 30 through the air outlet member 52. The high-temperature and dry air contacts the damp clothes inside the inner cylinder 30, evaporates the moisture contained in the clothes into water vapor and takes it away, and then becomes low-temperature and high-humidity air. The low-temperature and high-humidity air is sucked into the housing main body 53 again from the front side of the inner cylinder 30 via the suction pipe 51.

[0069] Such as Figure 4As shown, the compressor 85 is located in the upper space portion 14, disposed in the compressor housing portion 583 in front of the condenser 70, and near the upper side of the suction air duct 51. Thereby, the length of the connecting pipe between the compressor 85, the evaporator 60, and the condenser 70 can be shortened. In addition, during the manufacturing process, after the outer cylinder 20 and the inner cylinder 30 are installed, the drying device 40 including the evaporator 60, the condenser 70, the blower 80, and the compressor 85 can be integrally installed in the upper space portion 14. Compared with the case where the compressor 85 is located below the outer cylinder 20, the assembly convenience can be greatly improved. Further, in the direction of the rotation axis X of the inner cylinder 30, the compressor 85 is disposed at a position closer to the laundry inlet 21 side (front side) than the condenser 70, and the blower 80 is disposed on the opposite side (rear side) of the compressor 85 with respect to the condenser 70.

[0070] By operating the compressor 85, the low-temperature and low-pressure gaseous refrigerant is compressed to become a high-temperature and high-pressure liquid refrigerant. Then, the refrigerant is sent into the condenser 70 and becomes a low-temperature and high-pressure refrigerant by releasing heat inside the condenser 70. Then, the refrigerant passes through the throttling device and becomes a low-temperature and low-pressure gas-liquid two-phase refrigerant. Then, the refrigerant enters the evaporator 60 and becomes a low-temperature and low-pressure gaseous refrigerant by absorbing heat. Then, the refrigerant returns to the compressor 85 and is compressed again.

[0071] <Connection between the drying device and the outer cylinder>

[0072] As Figure 8 shown, a first air suction port 241 connected to the suction air duct 51 is provided locally on the wall portion of the outer cylinder 20 surrounding the laundry inlet 21. Specifically, the laundry inlet 21 is formed in an annular wall portion 23 extending radially inward from the outer peripheral wall of the outer cylinder 20, and the first air suction port 241 is provided locally on this wall portion 23. The first air suction port 241 opens toward the front of the drum-type laundry processing apparatus 1. Preferably, the first air suction port 241 is offset to one side in the left-right direction with respect to the rotation axis X of the inner cylinder 30. More preferably, in the up-down direction, the first air suction port 241 is provided in the upper half of the wall portion 23. Thereby, the distance of the air path from the inner cylinder 30 to the drying device 40 can be shortened, and the heat loss of the high-temperature air in the air path can be reduced. In Figure 8In it, a hollow outer cylinder fitting 24 protruding forward is integrally formed on the wall portion 23. The front side opening of the outer cylinder fitting 24 constitutes the first air suction port 241, and the hollow portion of the outer cylinder fitting 24 communicates with the first air suction port 241. The first air suction port 241 is connected to the first opening 54 of the air suction pipe 51 and communicates with the inner cavity of the outer cylinder 20, that is, the first air suction port 241 is an air suction port connected to the first opening 54 of the drying device 40. The first air suction port 241 is in a shape extending along the circumferential direction of the clothing inlet 21. It should be noted that the outer cylinder fitting 24 is not an essential component, and the outer cylinder fitting 24 may not be provided. In this case, the first air suction port 241 can be directly provided locally on the wall portion of the outer cylinder 20 surrounding the clothing inlet 21. Therefore, the expression "the first air suction port 241 connected to the drying device 40 is provided locally on the wall portion of the outer cylinder 20 surrounding the clothing inlet 21" includes both the case where the first air suction port 241 is directly provided locally on the wall portion of the outer cylinder 20 surrounding the clothing inlet 21 and the case where the first air suction port 241 is provided locally on the wall portion of the outer cylinder 20 surrounding the clothing inlet 21 by means of other structures such as the outer cylinder fitting 24.

[0073] As Figures 4 to 6 shown, the air suction pipe 51 communicates with the first air suction port 241 in such a way as to guide the air flowing forward from the first air suction port 241 serving as the air suction port upward. The folds of the corrugated pipe portion 511 of the air suction pipe 51 are inclined along the circumferential direction of the clothing inlet 21.

[0074] The air suction pipe 51 is fixedly connected to the first air suction port 241 of the outer cylinder 20, that is, the air suction port, by a fixing member. When the outer cylinder fitting 24 is integrally provided on the outer cylinder 20, the air suction pipe 51 is fixedly connected to the front side opening of the outer cylinder fitting 24 by a fixing member, so as to achieve the fixed connection with the first air suction port 241 (at this time, the front side opening of the outer cylinder fitting 24 can be regarded as the first air suction port, that is, the air suction port, on the outer cylinder 20).

[0075] A window seal ring 25 is installed at the clothing inlet 21 of the outer cylinder 20. When the door assembly closes the clothing inlet 21, the window seal ring 25 is interposed between the outer cylinder 20 and the door assembly. A second air suction port 251 is provided on the window seal ring 25, and the second air suction port 251 communicates with the air suction pipe 51.

[0076] Specifically, as Figure 10As shown in the figure, a first opening 54 and a second opening 55 are formed in the air suction pipe 51. The first opening 54 communicates with the first air suction port 241, and the second opening 55 communicates with the second air suction port 251. The second opening 55 and the second air suction port 251 can be connected to each other through the inner sleeve 26 of the pipe joint. Thus, a secondary air duct can be reliably formed, which is convenient for assembly. It can also be that the second opening 55 and the second air suction port 251 are integrally formed and directly communicate. Thus, a secondary air duct can be formed more reliably without air leakage.

[0077] In addition, as Figure 10 shown, a flange portion surrounding the front side opening is provided in the inner cylinder 30. The flange portion extends towards the inside (the inside refers to the side of the rotation axis X). Ventilation holes 31 are provided in the flange portion. The ventilation holes 31 connect the inside and outside of the inner cylinder 30, and the ventilation holes 31 also communicate with the first air suction port 241 of the outer cylinder 20. Thus, ventilation holes 31 can be formed on the front side of the inner cylinder 30 for the air inside the inner cylinder 30 to blow out from the front side, which can further increase the air suction volume. And it can prevent the air from directly entering the space between the inner cylinder 30 and the outer cylinder 20 without passing through the clothes in the inner cylinder 30. Therefore, the air inside the inner cylinder 30 can flow through the ventilation holes 31 to the first air suction port 241, and then enter the air suction pipe 51 through the first opening 54 communicating with the first air suction port 241. The ventilation holes 31 are distributed in the circumferential direction of the inner cylinder 30. Thus, the air suction volume can be further increased, and the air for drying the clothes in the inner cylinder 30 can flow evenly in the inner cylinder, which is beneficial to uniform drying. The distribution of the ventilation holes 31 in the circumferential direction can be either evenly distributed or unevenly distributed, and can be either distributed in the entire circumferential direction or locally distributed in the circumferential direction. The ventilation holes 31 are located at the rear side of the first air suction port 241. Thus, it helps the air blown out from the ventilation holes 31 to enter the first air suction port 241 and reduces the wind loss.

[0078] As Figure 7 shown, an air supply port 201 is provided on the rear side wall of the outer cylinder 20. The air outlet 56 of the second pipe 522 of the air outlet member 52 is connected to the air supply port 201. Thus, the air outlet member 52 is used to connect the housing main body 53 and the air supply port 201, and the air flowing out from the air outlet 56 of the air outlet member 52 flows into the outer cylinder 20 through the air supply port 201.

[0079] <Constitution of the air duct>

[0080] As Figures 3 to 4As shown in the figure, the air passage in the air passage housing 50 is divided into: a first air passage area S1, which is the area from the first opening 54 of the air suction pipe 51 to the windward surface 61 of the evaporator 60 in the housing main body 53, that is, the area located upstream of the evaporator 60 in the air flow direction; a second air passage area S2, which is the area between the air outlet surface 62 of the evaporator 60 and the windward surface 71 of the condenser 70 in the housing main body 53, that is, the area located below the evaporator 60 and the condenser 70; and a third air passage area S3, which is the area from the air outlet surface 72 of the condenser 70 to the air outlet 56 of the air outlet member 52, that is, the area located downstream of the condenser 70 in the air flow direction.

[0081] As Figure 4 shown in the figure, the first air passage area S1 is formed such that the air flowing in from the air suction pipe 51 under the negative pressure action when the blower 80 is operating flows from below upward, and then the air flows from right to left and flows from the front of the evaporator 60 toward the windward surface 61 of the evaporator 60.

[0082] As Figure 3 shown in the figure, the bottom wall portion 581 of the air passage housing 50 defining the second air passage area S2 extends in an arc shape along the outer peripheral surface of the outer cylinder 20. Preferably, a condensate drain outlet is provided in the bottom wall portion 581 of the air passage housing 50 defining the second air passage area S2. Specifically, a condensate drain outlet is provided near the portion of the bottom wall portion 581 located below the condenser 70. The condensate drain outlet is used to drain the condensate generated by condensation on the surface of the evaporator 60 and is connected via a hose (not shown) or the like to a drainage structure for draining the washing water in the outer cylinder 20. Thus, the condensate flows along the curvature of the bottom wall portion 581 to the condensate drain outlet. Since the condensate drain outlet is located above the inner cylinder 30, the condensate can directly flow to the drain pipe for draining the washing water in the outer cylinder 20 by gravity. The structure is simple and the cost is low. In addition, the flow direction of the condensate is consistent with the flow direction of the air passing through the evaporator 60, which is more conducive to draining the condensate.

[0083] <Effect>

[0084] In the present utility model, the drum (inner cylinder 30) is connected to the drying device 40 through the air suction pipe 51. In the air suction pipe 51, it is connected to the first air suction port 241 of the outer cylinder 20 through the first opening 54 to suck the air in the drum into the air suction pipe 51 (refer to the arrow L1 in Figure 10 . In addition, the air suction pipe 51 further has a second opening 55, and the second opening 55 communicates with the second air suction port 251 provided in the form sealing ring 25. Thus, in addition to the main air duct formed by the first opening 54 and the first air suction port 241, a secondary air duct can be formed based on the second opening 55 and the second air suction port 251, increasing a side air suction path (refer toFigure 10 The air flow of the main air duct represented by arrow L1 and the air flow of the auxiliary air duct represented by arrow L2 merge into an air flow with a larger air volume (the air flow represented by arrow L3). As a result, the air suction volume is increased and the drying performance is improved.

[0085] Moreover, the first air suction port 241 is provided at a part of the wall portion surrounding the laundry inlet 21 and opens forward. Compared with the structure located at the upper part of the peripheral wall of the outer cylinder and opening upward, the size in the height direction can be suppressed, which contributes to miniaturization. And on the basis of the above miniaturization, the auxiliary air duct is still connected to the air suction pipe 51, and no additional air suction pipe is provided for air guiding. Therefore, while increasing the air suction volume, the structure is not made complicated.

[0086] In addition, since the auxiliary air duct is a passage for the air flow led out through the second air suction port 251 provided in the window seal ring 25, the air flowing out through the auxiliary air duct will necessarily pass through the inner cylinder 30. Thus, the following effect can be achieved: there is a possibility that the air entering the inner cylinder 30 directly enters the space between the inner cylinder 30 and the outer cylinder 20 through the through holes formed in the inner cylinder 30 without passing through the laundry, and then directly enters the air suction pipe 51 through the first air suction port 241. In the present application, by providing the second air suction port 251 in the window seal ring 25, the amount of air directly entering the space between the inner cylinder 30 and the outer cylinder 20 can be reduced, so that more air circulates in the inner cylinder 30 and then enters the air suction pipe 51 through the second air suction port 251 of the window seal ring 25. Since more air can circulate in the inner cylinder 30, the drying efficiency can be improved.

[0087] In addition, as Figure 10 shown, the front side portion of the inner cylinder 30 has ventilation holes 31, and the ventilation holes 31 communicate with the first air suction port 241 of the outer cylinder 20. Therefore, the air volume entering the air suction pipe 51 (the air flow represented by arrow L4) can also be increased through the ventilation holes 31. And since the ventilation holes 31 are provided in the inner cylinder 30, the effect of making more air circulate in the inner cylinder 30 can also be achieved. Thus, ventilation holes 31 can be formed on the front side of the inner cylinder 30 to blow out the air inside the inner cylinder 30 from the front side, and the air suction volume can be increased with a simple structure and miniaturization in the height direction can be achieved. In addition, it can prevent the air from directly entering the space between the inner cylinder 30 and the outer cylinder 20 without passing through the laundry in the inner cylinder 30.

Claims

1. A drum - type laundry treating apparatus, characterized in that: The drum - type laundry treating apparatus includes: A housing; An outer tub, which is supported within the housing; An inner tub, which is rotatably installed within the outer tub for receiving laundry; and A drying device that dries the laundry within the inner tub using heated air, The outer tub has a laundry inlet, and a first air suction opening is provided locally on the wall portion of the outer tub surrounding the laundry inlet. The first air suction opening opens towards the front of the drum - type laundry treating apparatus and is connected to the drying device via an air suction pipe, A door assembly is provided on the housing, and the door assembly is used to open and close the laundry inlet, A window seal ring is installed at the laundry inlet of the outer tub. When the door assembly closes the laundry inlet, the window seal ring is interposed between the outer tub and the door assembly, A second air suction opening is provided on the window seal ring, and the second air suction opening communicates with the air suction pipe.

2. The drum - type laundry treating apparatus according to claim 1, characterized in that: A first opening and a second opening are provided on the air suction pipe, The first opening communicates with the first air suction opening, The second opening is connected to the second air suction opening through an inner sleeve of a pipe joint.

3. The drum - type laundry treating apparatus according to claim 1, characterized in that: A first opening and a second opening are provided on the air suction pipe, The first opening communicates with the first air suction opening, The second opening is integrally formed with the second air suction opening.

4. The drum - type laundry treating apparatus according to any one of claims 1 to 3, characterized in that: The drying device is located above the outer tub.

5. The drum - type laundry treating apparatus according to claim 4, characterized in that: In the vertical direction, the first air suction opening is provided in the upper half of the wall portion.

6. The drum - type laundry treating apparatus according to claim 1, characterized in that: A flange portion surrounding the front - side opening is provided on the inner tub. The flange portion extends inwardly, and ventilation holes are provided on the flange portion. The ventilation holes communicate the inside and outside of the inner tub.

7. A drum - type laundry treating apparatus, characterized in that: The drum - type laundry treating apparatus includes: A housing; An outer tub, which is supported within the housing; An inner tub, which is rotatably installed within the outer tub for receiving laundry; and A drying device that dries the laundry within the inner tub using heated air, The outer tub has a laundry inlet, and a first air suction opening is provided locally on the wall portion of the outer tub surrounding the laundry inlet. The first air suction opening opens towards the front of the drum - type laundry treating apparatus and is connected to the drying device via an air suction pipe, A flange portion surrounding the front - side opening is provided on the inner tub. The flange portion extends inwardly, and ventilation holes are provided on the flange portion. The ventilation holes communicate the inside and outside of the inner tub.

8. The drum - type laundry treating apparatus according to claim 7, characterized in that: The ventilation holes are distributed in the circumferential direction of the inner tub.

9. The drum-type laundry treating apparatus according to claim 8, wherein the ventilation holes are located at the rear side of the first air suction port.

10. The drum-type laundry treating apparatus according to any one of claims 7 to 9, wherein the drying device is located above the outer cylinder.

11. The drum-type laundry treating apparatus according to claim 10, wherein in the vertical direction, the first air suction port is provided in the upper half of the wall portion.

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