Clothes dryer

Abstract

The utility model discloses a clothes dryer which comprises a mounting seat, a heat pump system, an air duct shell assembly and a clothes processing drum assembly, and an air duct is defined by the mounting seat; the heat pump system comprises an evaporator, a condenser and a compressor, and the evaporator and the condenser are arranged in the air duct; a ventilation cavity with a through opening in one side is defined by the air duct shell assembly, and a plurality of supporting rollers are arranged on the air duct shell assembly; the outer surface of the clothes processing drum assembly is matched with the multiple supporting rollers to be supported on the multiple supporting rollers, a clothes processing cavity is defined by the clothes processing drum assembly, one part of the clothes processing drum assembly extends into the ventilation cavity from the through opening and is provided with an air inlet part, the air inlet part communicates with the ventilation cavity and the clothes processing cavity, and the ventilation cavity communicates with the clothes processing cavity through the air duct; according to the clothes dryer, the clothes processing drum assembly is supported through the rolling wheels, the bottom structure of the clothes processing drum assembly and the structure, corresponding to the clothes processing drum assembly, of the air duct shell assembly can be subjected to more flexible structural deformation according to different needs, the problems of supporting, fixing and strength do not need to be considered, and the performance of the clothes dryer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothes dryers, and in particular to a clothes dryer. Background Art

[0002] The structure of a traditional clothes dryer includes a clothing processing drum, a rear plate and an air duct shell. The clothing processing drum defines a clothing processing chamber. A first flow channel is defined between the air duct shell and the rear plate. An air outlet area is formed on the rear plate. An air inlet area is formed on the rear wall of the clothing processing drum. The air outlet area and the air inlet area are arranged correspondingly, and a second flow channel is defined between the two. The air flow passes through the first flow channel, the air outlet area, the second flow channel and the air inlet area in sequence and enters the clothing processing chamber. The clothing processing drum is fixed to the rear plate by a bearing.

[0003] In the prior art, the performance of the clothing processing drum, air intake flow, air intake efficiency, etc. is limited by the structure. The dryer cannot process more and larger clothes at the same time, and the performance is poor, which affects the user experience. There is room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the utility model proposes a clothes dryer, which supports a clothes processing drum assembly through a roller, and the bottom structure of the clothes processing drum assembly and the structure of the air duct shell assembly corresponding to the clothes processing drum assembly can be more flexibly deformed according to different needs without considering the support fixation and strength issues, thereby improving the performance of the clothes dryer.

[0005] A clothes dryer according to an embodiment of the utility model comprises: a mounting base, wherein the mounting base defines an air duct;

[0006] A heat pump system, the heat pump system comprising an evaporator, a condenser and a compressor, the evaporator and the condenser being arranged in the air duct;

[0007] An air duct shell assembly, wherein the air duct shell assembly defines a ventilation cavity having an opening on one side, and the air duct shell assembly is provided with a plurality of supporting rollers;

[0008] A clothing processing drum assembly, the outer surface of which cooperates with the plurality of supporting rollers to be supported on the plurality of supporting rollers, the clothing processing drum assembly defines a clothing processing chamber, a portion of the clothing processing drum assembly extends from the through opening into the ventilation chamber and has an air inlet, the air inlet connects the ventilation chamber and the clothing processing chamber, and the air duct connects the ventilation chamber and the clothing processing chamber.

[0009] According to the dryer of the embodiment of the utility model, the dryer supports the clothing processing drum assembly by means of rollers, and the bottom structure of the clothing processing drum assembly and the structure on the air duct shell assembly corresponding to the clothing processing drum assembly can be more flexibly deformed according to different needs without considering support fixation and strength issues, thereby improving the performance of the dryer.

[0010] In addition, the clothes dryer according to the embodiment of the utility model may also have the following additional technical features:

[0011] According to some embodiments of the present utility model, the laundry treatment drum assembly has an annular matching wall, and the plurality of support rollers match the annular matching wall;

[0012] The annular matching wall extends along the axial direction of the laundry processing drum assembly, or the annular matching wall extends outwardly along the axial direction of the laundry processing drum assembly in a direction away from the air duct shell assembly.

[0013] According to some embodiments of the present invention, the angle between the annular mating wall and the central axis of the laundry treatment drum assembly is less than 45°.

[0014] According to some embodiments of the present invention, the axial direction of the supporting roller is parallel to the axial direction of the laundry processing drum assembly, and the axial dimension of the annular matching wall of the laundry processing drum assembly is larger than the axial dimension of the supporting roller.

[0015] According to some embodiments of the present utility model, the laundry processing drum assembly comprises:

[0016] A barrel, wherein one axial end of the barrel has an open opening and the other end has a clothing access opening;

[0017] an air inlet hood, the air inlet hood covering the open opening and defining an air inlet cavity communicating with the inner cavity of the barrel, the laundry processing cavity including the inner cavity of the barrel and the air inlet cavity, at least a portion of the air inlet hood extending from the through opening into the ventilation cavity;

[0018] Wherein, the annular matching wall is located on the cylinder and / or the air inlet cover.

[0019] According to some embodiments of the utility model, the air inlet cavity includes a first chamber, the air inlet cover has a first extension portion extending in a direction away from the cylinder, the first extension portion extends into the ventilation cavity and defines the first chamber, and the air inlet portion is arranged on the first extension portion.

[0020] According to some embodiments of the utility model, the air inlet cavity includes a second chamber, and the air inlet cover further has a second extension portion extending in a direction away from the cylinder, and the second extension portion is a non-porous structure and defines the second chamber;

[0021] The second extension portion is located between the first extension portion and the cylinder, and the first extension portion extends in a direction away from the cylinder relative to the second extension portion. In the axial direction of the cylinder, the second chamber is connected between the first chamber and the inner cavity of the cylinder.

[0022] According to some embodiments of the present invention, at least a portion of the second extending portion forms the annular mating wall.

[0023] According to some embodiments of the present invention, a sealing ring is provided between the side of the air duct housing assembly facing the clothing processing drum assembly and the clothing processing drum assembly, and the sealing ring surrounds the outer side of the through opening.

[0024] According to some embodiments of the utility model, the air duct shell assembly also has an air outlet located on one side of the through opening, the air outlet connects the ventilation cavity and the air duct, and a wind wheel arranged opposite to the air outlet is provided in the ventilation cavity.

[0025] According to some embodiments of the present utility model, the mounting seat is located below the clothing processing tub assembly, and the wind wheel is located obliquely below the clothing processing tub assembly;

[0026] Wherein, at least two of the support rollers are located on both sides of a longitudinal section of the laundry processing drum assembly passing through a central axis, and one of the support rollers disposed close to the wind wheel is higher than the other support roller.

[0027] According to some embodiments of the present utility model, the air duct housing assembly includes:

[0028] A support plate, wherein the through opening is provided on the support plate;

[0029] An air duct shell is connected to one side of the support plate in the thickness direction and covers the through opening, and the air duct shell defines the ventilation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a structural schematic diagram of a clothes dryer according to an embodiment of the utility model;

[0031] Figure 2 It is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model after the air duct shell is removed;

[0032] Figure 3It is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model with the casing removed;

[0033] Figure 4 yes Figure 3 Schematic diagram of the local structure after removing the air duct shell;

[0034] Figure 5 is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model;

[0035] Figure 6 is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model;

[0036] Figure 7 is a schematic structural diagram of a support plate according to an embodiment of the utility model;

[0037] Figure 8 is a side view of the clothes dryer according to an embodiment of the utility model with the casing removed;

[0038] Fig. 9 is a cross-sectional view of a clothes dryer according to an embodiment of the utility model;

[0039] Fig.10 is a front view of the support plate and the laundry treatment drum assembly after being assembled according to an embodiment of the utility model;

[0040] Fig.11 is a side view of the support plate and the laundry treatment drum assembly after being assembled according to an embodiment of the utility model;

[0041] Fig.12 is a schematic structural diagram of the support plate and the laundry treatment drum assembly after being assembled according to an embodiment of the utility model;

[0042] Fig.13 It is a side view of the cooperation between the laundry treatment drum assembly and the supporting roller according to an embodiment of the utility model;

[0043] Fig.14 It is a schematic diagram of the structure of the cooperation between the laundry treatment drum assembly and the supporting roller according to an embodiment of the utility model;

[0044] Fig.15 It is a front view of the cooperation between the laundry treatment drum assembly and the supporting roller according to an embodiment of the utility model.

[0045] Reference numerals:

[0046] Dryer 1000, air duct shell assembly 1, supporting roller 11, supporting plate 12, air duct shell 13, ventilation cavity 101, through port 1011, air outlet 1012, clothing processing drum assembly 2, drum body 21, drum body 211, drum cover 212, air inlet cover 22, first extension portion 223, second extension portion 226, annular matching wall 2261, clothing processing cavity 201, open port 2011, clothing access port 2012, first chamber 2014, second chamber 2015, sealing ring 3, mounting seat 4, air duct 401, support member 6, second roller 61, air inlet portion 7, wind wheel 8. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The structure of a traditional clothes dryer includes a clothing processing drum, a rear plate and an air duct shell. The clothing processing drum defines a clothing processing chamber. A first flow channel is defined between the air duct shell and the rear plate. An air outlet area is formed on the rear plate. An air inlet area is formed on the rear wall of the clothing processing drum. The air outlet area and the air inlet area are arranged correspondingly, and a second flow channel is defined between the two. The air flow passes through the first flow channel, the air outlet area, the second flow channel and the air inlet area in sequence and enters the clothing processing chamber. The clothing processing drum is fixed to the rear plate by a bearing.

[0052] In the prior art, the capacity of the clothes treatment drum is limited by the structure, and it is impossible to process more and larger clothes at the same time, which affects the user experience. To this end, the embodiment of the utility model designs a structure that uses a support roller to rotatably limit the clothes treatment drum assembly inside the dryer, thereby, the bottom structure of the clothes treatment drum assembly and the structure on the air duct shell assembly corresponding to the clothes treatment drum assembly can be more flexibly deformed according to different needs without considering support fixation and strength issues, thereby improving the performance of the dryer.

[0053] Reference below Figure 1-Figure 15 A clothes dryer 1000 according to an embodiment of the present invention is described.

[0054] The clothes dryer 1000 according to the embodiment of the utility model may include: a mounting base 4, a heat pump system, an air duct housing assembly 1 and a clothes processing drum assembly 2.

[0055] The mounting base 4 forms the basis of the entire internal structure of the dryer 1000. The heat pump system, the air duct shell assembly 1 and the clothing processing drum assembly 2 are all supported on the mounting base 4. The mounting base 4 defines an air duct 401, which connects the ventilation chamber 101 and the clothing processing chamber 201. That is to say, the flow path of the airflow in the dryer 1000 is that the airflow in the ventilation chamber 101 enters the clothing processing chamber 201 through the air inlet portion 7, and the airflow in the clothing processing chamber 201 returns to the ventilation chamber 101 through the air duct 401.

[0056] The heat pump system includes an evaporator, a condenser and a compressor. The evaporator and the condenser are heating elements, and the evaporator and the condenser are arranged in the air duct. The clothing treatment drum assembly 2 defines a clothing treatment chamber 201. In the clothing treatment chamber 201, dry hot air passes through wet clothes, and the moisture remaining on the clothes absorbs heat, and the air becomes hot and humid air. The hot and humid air enters the air duct, and the hot and humid air is converted into dry cold air after passing through the condenser. The water vapor in the air condenses into water droplets and is discharged. At this time, the dry cold air continues to be heated and pressurized by the compressor and the evaporator.

[0057] A plurality of supporting rollers 11 are provided on the air duct shell assembly 1, and the outer surface of the clothing processing drum assembly 2 cooperates with the plurality of supporting rollers 11 to be supported on the plurality of supporting rollers 11. Compared with the method in the prior art that the clothing processing drum assembly 2 is rotatably connected to the air duct shell assembly 1 by a bearing structure provided at the central axis of the clothing processing drum assembly 2, in the embodiment of the utility model, the clothing processing drum assembly 2 is limited by cooperating with the outer surface of the clothing processing drum assembly 2 by the plurality of supporting rollers 11 provided on the air duct shell assembly 1. There is no need to provide a bearing structure at the bottom of the clothing processing drum assembly 2. The bottom structure of the clothing processing drum assembly 2 and the structure on the air duct shell assembly 1 corresponding to the clothing processing drum assembly 2 can be more flexibly deformed according to different needs without considering support fixation and strength issues, thereby improving the performance of the dryer 1000. For example, a clothing processing chamber 201 with a larger volume or a clothing processing drum assembly 2 with a higher air intake efficiency can be defined, thereby improving the user experience.

[0058] The air duct shell assembly 1 defines a ventilation cavity 101 with a through opening 1011 on one side. The partial structure of the air duct shell assembly 1 corresponding to the clothing processing drum assembly 2 does not need to have sufficient strength to assume the responsibility of supporting and fixing the clothing processing drum assembly 2. Therefore, the portion corresponding to the air duct shell assembly 1 and the clothing processing drum assembly 2 can be provided with a through opening 1011. The clothing processing drum assembly 2 defines a clothing processing cavity 201. A portion of the clothing processing drum assembly 2 can extend into the ventilation cavity 101 from the through opening 1011, and an air inlet portion 7 is provided on the partial structure extending into the ventilation cavity 101. The air inlet portion 7 connects the ventilation cavity 101 and the clothing processing cavity 201.

[0059] A portion of the clothing processing drum assembly 2 extends from the opening 1011 into the ventilation cavity 101 and has an air inlet portion 7, whereby the clothing processing drum assembly 2 can extend backward until it extends into the ventilation cavity 101, and the clothing processing drum assembly 2 can be designed to be deeper without changing the external dimensions of the dryer 1000, thereby increasing the capacity of the clothing processing cavity 201, and the dryer 1000 can process more and larger clothing at the same time, thereby improving the user experience.

[0060] An air inlet 7 is provided on the structure of the part of the clothing treatment drum assembly 2 that extends backward and extends into the ventilation cavity 101. The air inlet 7 can directly connect the ventilation cavity 101 and the clothing treatment cavity 201. That is to say, during the flow of air, the air in the ventilation cavity 101 can directly enter the clothing treatment cavity 201 through the air inlet 7. The number of structures that the air passes through during the process of flowing from the ventilation cavity 101 to the clothing treatment cavity 201 is reduced, which reduces wind resistance, thereby reducing the loss of air flow and improving air intake efficiency. On this basis, the original complex air outlet area on the air duct shell assembly 1 can directly open a larger opening 1011, which reduces the production cost of the dryer 1000.

[0061] According to the dryer 1000 of the embodiment of the utility model, the dryer 1000 supports the clothing processing drum assembly 2 by means of rollers, and the bottom structure of the clothing processing drum assembly 2 and the structure on the air duct shell assembly 1 corresponding to the clothing processing drum assembly 2 can be more flexibly deformed according to different needs without considering support fixation and strength issues, thereby improving the performance of the dryer 1000.

[0062] like Fig. 9 , Figure 11-Figure 14 As shown, the clothing processing drum assembly 2 has an annular mating wall 2261, and a plurality of supporting rollers 11 cooperate with the annular mating wall 2261. The cross-section of the annular mating wall 2261 is circular. The roundness of the circle formed by the cross-section at the mating point of the annular mating wall 2261 and the supporting rollers 11 determines the smoothness of the clothing processing drum assembly 2 during rotation. The rounder the circle, the less likely the clothing processing drum assembly 2 will experience abnormal conditions such as jumping during rotation, thereby ensuring that the clothing processing drum assembly 2 produces less noise during operation.

[0063] Among them, the annular matching wall 2261 extends axially along the clothing processing drum assembly 2, and the supporting roller 11 can provide a radial supporting force pointing to the center of the clothing processing drum assembly 2 through the annular matching wall 2261, thereby ensuring the stability of the clothing processing drum assembly 2.

[0064] Alternatively, the annular mating wall 2261 extends outwardly along the axial direction of the clothing processing drum assembly 2 in a direction away from the air duct shell assembly 1, whereby the supporting roller 11 can provide the clothing processing drum assembly 2 with a force in the radial direction pointing to the center of the circle to ensure the stability of the setting of the clothing processing drum assembly 2 and a forward force in the axial direction, thereby avoiding the axial position of the clothing processing drum assembly 2 from being offset, ensuring the stability of the operating position of the clothing processing drum assembly 2, and avoiding the clothing processing drum assembly 2 from moving back and forth and colliding with the air duct shell assembly 1.

[0065] According to some embodiments of the utility model, the angle between the annular mating wall 2261 and the central axis of the clothing processing drum assembly 2 is less than 45°, so as to ensure the contact area between the annular mating wall 2261 and the support roller 11, and avoid the contact area between the annular mating wall 2261 and the support roller 11 being too small, which may cause the local structure of the clothing processing drum assembly 2 to be subjected to excessive force, resulting in deformation of the contact part structure.

[0066] Among them, the axial direction of the support roller 11 is parallel to the axial direction of the clothing processing drum assembly 2 to ensure rolling contact between the support roller 11 and the clothing processing drum assembly 2 during the rotation of the clothing processing drum assembly 2. The axial size of the annular matching wall 2261 of the clothing processing drum assembly 2 is larger than the axial size of the support roller 11, so as to ensure the contact area between the support roller 11 and the annular matching wall 2261 while avoiding the axial end of the support roller 11 from colliding with the clothing processing drum assembly 2, or avoiding the clothing processing drum assembly 2 from falling off the support roller 11, affecting the operation stability.

[0067] Reference Figure 6 and Fig. 9 The laundry treatment drum assembly 2 includes a drum body 21 and an air inlet cover 22.

[0068] Among them, the clothing processing drum assembly 2 may include: a drum body 21 and an air inlet hood 22, wherein one axial end of the drum body 21 has an open opening 2011 and the other end has a clothing access opening 2012 for taking clothes in and out, the air inlet hood 22 covers the open opening 2011 to define a clothing processing chamber 201 connected to the clothing access opening 2012 with the drum body 21, wherein the air inlet hood 22 and the drum body 21 can be an integrally molded structure, or the air inlet hood 22 and the drum body 2121 can be separately molded and then fixedly connected, which is not limited here.

[0069] Further, refer to Fig. 9 The clothing processing chamber 201 includes: an inner cavity of the barrel 21 and an air inlet chamber defined by an air inlet cover 22 and connected to the inner cavity of the barrel 21. At least a portion of the air inlet cover 22 extends from the opening 1011 into the ventilation chamber 101. The portion extending into the ventilation chamber 101 can be used to expand the clothing processing chamber 201 and increase the capacity of the clothing processing chamber 201. As a result, the dryer 1000 can process more and larger clothes at the same time.

[0070] Among them, in some embodiments, the annular matching wall 2261 is located on the barrel 21. At this time, the structure of the air inlet hood 22 does not need to be affected by the structural requirements for setting the annular matching wall 2261. The structure of the air inlet hood 22 can be more flexibly deformed and optimized, which is beneficial to increase the inner cavity capacity of the clothing processing barrel assembly 2, or optimize the air flow rate or air efficiency in the clothing processing cavity 201.

[0071] In other embodiments, the annular mating wall 2261 is located at the air inlet hood 22. The annular mating wall 2261 is arranged at the air inlet hood 22. The molding process of the air inlet hood 22 can ensure the strength of the annular mating wall 2261 and the roundness of the circular cross-section of the annular mating wall 2261, thereby ensuring the operating stability of the dryer 1000 and reducing the noise during the operation of the dryer 1000.

[0072] Specifically, the air inlet cavity includes a first chamber 2014, and the air inlet cover 22 has a first extension portion 223 extending in a direction away from the barrel 21. The first extension portion 223 extends from the opening 1011 into the ventilation cavity 101, and the first extension portion 223 defines a first cavity for expanding the capacity of the clothing processing cavity 201. The design of the first extension portion 223 on the air inlet cover 22 increases the capacity of the clothing processing cavity 201, and the dryer 1000 can process more and larger clothing at the same time. The first extension portion 223 is provided with an air inlet portion 7 connected to the clothing processing cavity 201, and the airflow in the ventilation cavity 101 can enter the clothing processing cavity 201 through the air inlet portion 7 provided on the first extension portion 223.

[0073] like Fig. 9 As shown, the air inlet cover 22 defines an air inlet cavity, which includes a first chamber 2014 and a second chamber 2015. The air inlet cover 22 also includes a second extension portion 226 extending in a direction away from the barrel 21. The second extension portion 226 is a non-porous structure and defines the second chamber 2015. The second extension portion 226 is located between the first extension portion 223 and the barrel 21 so that the second chamber 2015 is connected between the first chamber 2014 and the inner cavity of the barrel 21. The provision of the second chamber 20152015 further increases the volume of the laundry processing chamber 201201, and the dryer 1000 can process more laundry at the same time.

[0074] The arrangement of the first extension portion 223 and the second extension portion 226 allows the air inlet cover 22 to form a stepped structure in the axial direction of the clothing processing drum assembly 2, which facilitates the molding and processing of the air inlet cover 22. In addition, the second extension portion 226 defines a certain space between the outer side and the rear wall of the air duct shell assembly 1 and the clothing processing drum assembly 2, and this space can be used for the installation of the support roller 11. The arrangement of the support roller 11 will not affect the arrangement of other internal structures of the dryer 1000, thereby avoiding the arrangement of the support roller 11 affecting the size of the dryer 1000.

[0075] Among them, at least a portion of the second extension portion 226 forms an annular matching wall 2261. Specifically, the outer surface of the peripheral wall of the second extension portion 226 is formed as the annular matching wall 2261. The annular matching wall 2261 is arranged at the second extension portion 226, so that the support roller 11 is arranged at a position closer to the rotation axis position of the clothing processing drum assembly 2, thereby reducing the influence of the cross-sectional roundness on the rotation of the clothing processing drum assembly 2.

[0076] Reference Fig. 9 A sealing ring 3 is provided between the side of the air duct shell assembly 1 facing the clothing processing drum assembly 2 and the clothing processing drum assembly 2. The sealing ring 3 surrounds the outside of the through opening 1011, that is, also surrounds the outside of the air inlet portion 7, so as to achieve sealing between the air duct shell assembly 1 and the clothing processing drum assembly 2.

[0077] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the air duct housing assembly 1 also has an air outlet 1012 located on one side of the through opening 1011, the air outlet 1012 connects the ventilation cavity 101 and the air duct 401, and a wind wheel 8 is arranged in the ventilation cavity 101 opposite to the air outlet 1012. Figure 3 and Figure 4 As shown, the clothes dryer 1000 further includes a mounting base 4, which defines an air duct to connect the clothing processing chamber 201 and the ventilation chamber 101, and a heating element is provided in the air duct 401. During the operation of the clothes dryer 1000, the wet and cold airflow in the clothing processing chamber 201 passes through the air duct 401 defined by the mounting base 4, is heated and dehumidified in the air duct 401, passes through the air port 1012, and enters the ventilation chamber 101 defined by the air duct shell assembly 1 under the drive of the wind wheel 8, and the dry and hot airflow in the ventilation chamber 101 then enters the clothing processing chamber 201 through the air inlet 7 of the clothing processing drum assembly 2, and performs drying treatment on the clothing.

[0078] Combination Figure 3-Figure 6 as well as Figure 8 and Fig. 9 In the illustrated embodiment, the mounting seat 4 is located below the laundry processing tub assembly 2, and the wind wheel 8 is located obliquely below the laundry processing tub assembly 2. Among them, at least two supporting rollers 11 are located on both sides of the longitudinal section of the laundry processing tub assembly 2 passing through the central axis, and one supporting roller 11 disposed close to the wind wheel 8 is higher than the other supporting roller 11, so as to avoid the wind wheel 8, the transmission belt connected between the wind wheel 8 and the motor, and the transmission belt connected between the laundry processing tub assembly 2 and the motor.

[0079] Combination Figure 1-Figure 9 In the illustrated embodiment, the air duct housing assembly 1 comprises: a support plate 12 and an air duct housing 13. A through opening 1011 is provided on the support plate 12, the air duct housing 13 is connected to one side of the support plate 12 in the thickness direction and covers the through opening 1011, the air duct housing 13 defines a ventilation cavity 101, wherein the support roller 11 is provided on the other side of the support plate 12 in the thickness direction.

[0080] That is, the air duct shell 13 is arranged on one side of the support plate 12, and a ventilation cavity 101 having a through opening 1011 is defined between the air duct shell 13, and the clothes processing drum assembly 2 is arranged on the other side of the support plate 12, and at least a part of the clothes processing drum assembly 2 is arranged opposite to the through opening 1011, and the part arranged opposite to the through opening 1011 forms the air inlet 7 of the clothes processing cavity 201. The support roller 11 is arranged on the same side as the clothes processing drum assembly 2, and is arranged below the clothes processing drum assembly 2 to support the clothes processing drum assembly 2. The airflow in the ventilation cavity 101 can enter the clothes processing cavity 201 directly through the air inlet 7 opened at the corresponding part of the clothes processing drum assembly 2 and the through opening 1011. The structure of the support plate 12 is simple, and the production cost is reduced.

[0081] A specific embodiment of the clothes dryer 1000 of the present invention is described below with reference to the accompanying drawings.

[0082] like Figure 1-Figure 15 As shown, the clothes dryer 1000 includes a mounting base 4 , a support member 6 , an air duct housing assembly 1 and a clothes processing drum assembly 2 .

[0083] The laundry processing drum assembly 2 defines a laundry processing chamber 201, which is used to accommodate the laundry to be processed. The capacity of the laundry processing chamber 201 affects the number of laundry that the dryer 1000 can process at the same time and the size of the laundry that the dryer 1000 can process. In order to improve the user experience, the volume of the laundry processing chamber 201 should be as large as possible. The air duct housing assembly 1 defines a ventilation chamber 101, and the dryer 1000 can deliver high-temperature airflow into the laundry processing chamber 201 through the ventilation chamber 101 to achieve the drying function.

[0084] The air duct housing assembly 1 is provided with a supporting roller 11, which can rotatably support the clothes processing drum assembly 2 at the front side of the air duct housing assembly 1, ensuring that the clothes processing drum assembly 2 can be stably arranged and stably rotated. Figure 1-Figure 8 In order to ensure the air inlet area of ​​the clothing processing drum assembly 2 and the volume of the clothing processing drum assembly 2, the dryer 1000 cancels the bearing structure for supporting the clothing processing drum assembly 2, and supports the clothing processing drum assembly 2 through a supporting roller 11 in contact with the outer surface of the clothing processing drum assembly 2. The supporting roller 11 is arranged on the outer side of the clothing processing drum assembly 2 and cooperates with the outer surface of the clothing processing drum assembly 2. There is no need to set a structure for connecting with the bearing at the center position of the bottom wall of the clothing processing drum assembly 2. The bottom structure of the clothing processing drum assembly and the structure on the air duct shell assembly corresponding to the clothing processing drum assembly can be more flexibly deformed according to different needs without considering support fixation and strength issues, thereby improving the performance of the dryer.

[0085] The clothing processing drum assembly 2 has an annular mating wall 2261, and multiple supporting rollers 11 cooperate with the annular mating wall 2261. The cross-section of the annular mating wall 2261 is circular. The roundness of the circle formed by the cross-section at the mating point of the annular mating wall 2261 and the supporting rollers 11 determines the smoothness of the clothing processing drum assembly 2 during rotation. The rounder the circle, the less likely the clothing processing drum assembly 2 will experience abnormal conditions such as jumping during rotation, thereby ensuring that the clothing processing drum assembly 2 produces less noise during operation.

[0086] Among them, the annular matching wall 2261 extends axially along the clothing processing drum assembly 2, and the supporting roller 11 can provide a radial supporting force pointing to the center of the clothing processing drum assembly 2 through the annular matching wall 2261, thereby ensuring the stability of the clothing processing drum assembly 2.

[0087] Alternatively, the annular mating wall 2261 extends outwardly along the axial direction of the clothing processing drum assembly 2 in a direction away from the air duct shell assembly 1, whereby the supporting roller 11 can provide the clothing processing drum assembly 2 with a force in the radial direction pointing to the center of the circle to ensure the stability of the setting of the clothing processing drum assembly 2 and a forward force in the axial direction, thereby avoiding the axial position of the clothing processing drum assembly 2 from being offset, ensuring the stability of the operating position of the clothing processing drum assembly 2, and avoiding the clothing processing drum assembly 2 from moving back and forth and colliding with the air duct shell assembly.

[0088] According to some embodiments of the utility model, the angle between the annular mating wall 2261 and the central axis of the clothing processing drum assembly 2 is less than 45°, so as to ensure the contact area between the annular mating wall 2261 and the support roller 11, and avoid the contact area between the annular mating wall 2261 and the support roller 11 being too small, resulting in excessive force on the local structure of the clothing processing drum assembly 2, causing structural deformation.

[0089] According to some embodiments of the present invention, the axial direction of the support roller 11 is parallel to the axial direction of the clothing processing drum assembly 2 to ensure rolling contact between the support roller 11 and the clothing processing drum assembly 2 during rotation of the clothing processing drum assembly 2, and the axial dimension of the annular matching wall 2261 of the clothing processing drum assembly 2 is larger than the axial dimension of the support roller 11 to ensure the contact area between the support roller 11 and the annular matching wall 2261 while avoiding the axial end of the support roller 11 from colliding with the clothing processing drum assembly 2, or avoiding the clothing processing drum assembly 2 from falling off the support roller 11, which would affect the operation stability.

[0090] The annular matching wall 2261 is located at the air inlet cover 22. The molding process of the air inlet cover 22 can ensure the strength of the annular matching wall 2261 and the roundness of the circular cross-section of the annular matching wall 2261, thereby ensuring the operating stability of the dryer and reducing the noise during the operation of the dryer.

[0091] Among them, one side of the air duct shell assembly 1 has a through opening 1011, and a part of the clothing processing drum assembly 2 extends from the through opening 1011 into the ventilation cavity 101, thereby, the clothing processing drum assembly 2 can extend backward until it extends into the ventilation cavity 101, and the clothing processing drum assembly 2 can be designed to be deeper without changing the external dimensions of the dryer 1000, thereby increasing the capacity of the clothing processing cavity 201, and the dryer 1000 can process more and larger clothes at the same time, thereby improving the user experience.

[0092] The clothes treatment drum assembly 2 can extend backward until it reaches the ventilation cavity 101. The clothes treatment drum assembly 2 has an air inlet 7, which can directly connect the ventilation cavity 101 and the clothes treatment cavity 201. That is to say, during the flow of air, the air in the ventilation cavity 101 can directly enter the clothes treatment cavity 201 through the air inlet 7. On this basis, the original complex air outlet area on the air duct housing assembly 1 can directly open a larger opening 1011, thereby reducing the production cost of the dryer 1000.

[0093] There is no need to set a structure for connecting to the bearing at the position on the air duct shell assembly 1 corresponding to the clothing processing drum assembly 2, nor is there a need to set a structure with sufficient strength to support the clothing processing drum assembly 2. Therefore, a larger opening 1011 can be directly opened at the position opposite to the clothing processing drum assembly 2 to be opposite to the air inlet area of ​​the clothing processing drum assembly 2, so as to reduce the resistance to the airflow flowing to the clothing processing chamber 201 while allowing part of the clothing processing drum assembly 2 to extend from the opening 1011 into the ventilation chamber 101.

[0094] like Figure 8 As shown, the support rollers 11 include at least two, and the at least two support rollers 11 can limit the clothing processing drum assembly 2 at the bottom and both sides of the clothing processing drum assembly 2 to ensure the stability of the clothing processing drum assembly 2, and during the rotation of the clothing processing drum assembly 2, the support rollers 11 are in contact with the outer surface of the clothing processing drum assembly 2 and can roll relative to each other, and there is rolling friction between the two. The support rollers 11 provide a stable friction force while the friction resistance between the two is small, which is beneficial to ensure the stability of the rotation of the clothing processing drum assembly 2.

[0095] Furthermore, the annular matching wall 2261 is located at the second extending portion 226 on the air inlet cover 22 .

[0096] Combination Figure 1-Figure 7 , Figure 10-13In the illustrated embodiment, the air duct housing assembly 1 comprises: a support plate 12 and an air duct housing 13. A through opening 1011 is provided on the support plate 12, the air duct housing 13 is provided on one side of the support plate 12 in the thickness direction and covers the through opening 1011, the air duct housing 13 defines a ventilation cavity 101, wherein the support roller 11 is provided on the other side of the support plate 12 in the thickness direction.

[0097] That is, the air duct shell 13 is arranged on one side of the support plate 12, and a ventilation cavity 101 having a through opening 1011 is defined between the air duct shell 13, and the clothes processing drum assembly 2 is arranged on the other side of the support plate 12, and at least a part of the clothes processing drum assembly 2 is arranged opposite to the through opening 1011, and the part arranged opposite to the through opening 1011 forms the air inlet 7 of the clothes processing cavity 201. The support roller 11 is arranged on the same side as the clothes processing drum assembly 2, and is arranged below the clothes processing drum assembly 2 to support the clothes processing drum assembly 2. The airflow in the ventilation cavity 101 can enter the clothes processing cavity 201 directly through the air inlet 7 opened at the corresponding part of the clothes processing drum assembly 2 and the through opening 1011. The structure of the support plate 12 is simple, and the production cost is reduced.

[0098] like Figure 10-15 As shown, the laundry treatment drum assembly 2 includes: a drum body 21 and an air inlet cover 22. The annular matching wall 2261 is located at the air inlet cover 22, and the annular matching wall 2261 is arranged at the air inlet cover 22. The molding process of the air inlet cover 22 can ensure the strength of the annular matching wall 2261 and the roundness of the circular cross-section of the annular matching wall 2261, thereby ensuring the operating stability of the dryer 1000 and reducing the noise during the operation of the dryer 1000.

[0099] like Fig. 9 As shown, the air inlet cover 22 defines an air inlet cavity, which includes a first chamber 2014 and a second chamber 2015. The air inlet cover 22 also includes a second extension portion 226 extending in a direction away from the barrel 21. The second extension portion 226 is a non-porous structure and defines the second chamber 2015. The second extension portion 226 is located between the first extension portion 223 and the barrel 21 so that the second chamber 2015 is connected between the first chamber 2014 and the inner cavity of the barrel 21. The provision of the second chamber 20152015 further increases the volume of the laundry processing chamber 201201, and the dryer 1000 can process more laundry at the same time.

[0100] The arrangement of the first extension portion 223 and the second extension portion 226 allows the air inlet cover 22 to form a stepped structure in the axial direction of the clothing processing drum assembly 2, which facilitates the molding and processing of the air inlet cover 22. In addition, the second extension portion 226 defines a certain space between the outer side and the rear wall of the air duct shell assembly 1 and the clothing processing drum assembly 2, and this space can be used for the installation of the support roller 11. The arrangement of the support roller 11 will not affect the arrangement of other internal structures of the dryer 1000, thereby avoiding the arrangement of the support roller 11 affecting the size of the dryer 1000.

[0101] Among them, at least a portion of the second extension portion 226 forms an annular matching wall 2261. Specifically, the outer surface of the peripheral wall of the second extension portion 226 is formed as the annular matching wall 2261. The annular matching wall 2261 is arranged at the second extension portion 226, so that the support roller 11 is arranged at a position closer to the rotation axis position of the clothing processing drum assembly 2, thereby reducing the influence of the cross-sectional roundness on the rotation of the clothing processing drum assembly 2.

[0102] Reference Fig. 9 A sealing ring 3 is provided between the side of the air duct shell assembly 1 facing the clothing processing drum assembly 2 and the clothing processing drum assembly 2. The sealing ring 3 surrounds the outside of the through opening 1011, that is, also surrounds the outside of the air inlet portion 7, so as to achieve sealing between the air duct shell assembly 1 and the clothing processing drum assembly 2.

[0103] Combination Figure 10-15 In the illustrated embodiment, the barrel 21 comprises: a barrel body 211 and a barrel cover 212. An axial end of the barrel body 211 has an open opening 2011. The barrel cover 212 is connected to the other axial end of the barrel body 21. The middle portion of the barrel cover 212 defines a clothing access opening 2012. Clothes can be placed into or taken out of the clothing processing chamber 201 through the clothing access opening 2012 defined by the barrel cover 212.

[0104] The barrel 21 has an open opening 2011 at one axial end and a clothing access opening 2012 at the other end. The air inlet hood 22 covers the open opening 2011 to define a clothing processing chamber 201 connected to the clothing access opening 2012 with the barrel 21, wherein the air inlet hood 22 and the barrel 21 can be formed separately and then fixedly connected.

[0105] At least a portion of the air inlet cover 22 extends from the opening 1011 into the ventilation cavity 101 to increase the capacity of the clothing processing cavity 201 so that the dryer 1000 can process more and larger clothing at the same time.

[0106] Specifically, the air inlet cover 22 has a first extension portion 223 extending in a direction away from the barrel 21. The design of the first extension portion 223 on the air inlet cover 22 increases the capacity of the clothing processing chamber 201, and more and larger clothing can be processed simultaneously. The first extension portion 223 is provided with an air inlet portion 7 communicating with the clothing processing chamber 201, and airflow can enter the clothing processing chamber 201 through the air inlet portion 7 provided on the first extension portion 223.

[0107] In addition, the first extension portion 223 is provided with an air inlet portion 7 in communication with the clothing processing chamber 201, and airflow can enter the clothing processing chamber 201 through the air inlet portion 7 provided on the first extension portion 223. Since the air inlet portion 7 is provided on the first extension portion 223, the surface area of ​​the first extension portion 223 affects the air inlet area of ​​the air inlet portion 7, thereby affecting the air intake flow rate and air intake speed of the dryer 1000, and further affecting the clothing processing effect of the dryer 1000.

[0108] like Figure 7 As shown, the shape of the through opening 1011 is circular to correspond to the shape of the first extension portion 223 extending into the ventilation cavity 101, so that the first extension portion 223 can be set as large as possible.

[0109] Furthermore, since the through-port 1011 is connected to the ventilation cavity 101, the airflow in the ventilation cavity 101 can flow out through the through-port 1011. When the diameter of the outer peripheral wall of the cylinder 21 is smaller than the diameter of the through-port 1011, the airflow will flow out through the gap between the edge of the through-port 1011 and the outer peripheral wall of the cylinder 21, causing air volume loss. Therefore, the diameter of the outer peripheral wall of the cylinder 21 is larger than the diameter of the through-port 1011.

[0110] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the air duct housing assembly 1 also has an air outlet 1012 located on one side of the through opening 1011, and a wind wheel 8 arranged opposite to the air outlet 1012 is arranged in the ventilation cavity 101.

[0111] like Figure 3 and Figure 4 As shown, the clothes dryer 1000 further includes a mounting base 4, which defines an air duct 401 to connect the clothing processing chamber 201 and the ventilation chamber 101, and a heating element is arranged in the air duct 401. During the operation of the clothes dryer 1000, the wet and cold airflow in the clothing processing chamber 201 passes through the air duct 401 defined by the mounting base 4, is heated and dehumidified in the air duct 401, passes through the air port 1012, and enters the ventilation chamber 101 defined by the air duct shell assembly 1 under the drive of the wind wheel 8, and the dry and hot airflow in the ventilation chamber 101 then enters the clothing processing chamber 201 through the air inlet 7 of the clothing processing drum assembly 2, and performs drying treatment on the clothing.

[0112] Combination Figure 3-Figure 6 as well as Figure 8 and Fig. 9 In the illustrated embodiment, the mounting seat 4 is located below the laundry processing tub assembly 2, and the wind wheel 8 is located obliquely below the laundry processing tub assembly 2. Among them, at least two supporting rollers 11 are located on both sides of the longitudinal section of the laundry processing tub assembly 2 passing through the central axis, and one supporting roller 11 disposed close to the wind wheel 8 is higher than the other supporting roller 11, so as to avoid the wind wheel 8, the transmission belt connected between the wind wheel 8 and the motor, and the transmission belt connected between the laundry processing tub assembly 2 and the motor.

[0113] According to some embodiments of the utility model, the clothes dryer 1000 further includes: a heat pump system, the heat pump system includes an evaporator, a condenser and a compressor, and the heating element includes an evaporator and a condenser. In the clothing processing chamber 201, the dry hot air passes through the wet clothes, the moisture remaining on the clothes absorbs heat, and the air becomes hot and humid air. The hot and humid air enters the air duct 401, and the hot and humid air is converted into dry cold air after passing through the condenser, and the water vapor in the air condenses into water droplets and is discharged. At this time, the dry cold air continues to be heated and pressurized by the compressor and the evaporator.

[0114] like Figure 3 and Figure 4 As shown, the dryer 1000 also includes: a support member 6, which is arranged opposite to the air duct shell assembly 1, and together with the air duct shell assembly 1, limits the clothing processing drum assembly 2 at both axial ends of the clothing processing drum assembly 2, and the two ends of the clothing processing drum assembly 2 are respectively supported by the air duct shell assembly 1 and the support member 6 to ensure the stability of the setting of the clothing processing drum assembly 2.

[0115] In some embodiments, reference Figure 6 A plurality of second rollers 61 are disposed on the support member 6 , and the outer surface of the laundry treatment drum assembly 2 cooperates with the plurality of second rollers 61 to be supported on the plurality of support rollers 11 and the plurality of second rollers 61 at the same time.

[0116] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0117] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clothes dryer, characterized in that: include: a mounting seat, the mounting seat defining an air duct; A heat pump system, the heat pump system comprising an evaporator, a condenser and a compressor, the evaporator and the condenser being arranged in the air duct; An air duct shell assembly, wherein the air duct shell assembly defines a ventilation cavity having an opening on one side, and the air duct shell assembly is provided with a plurality of supporting rollers; A clothing processing drum assembly, the outer surface of which cooperates with the plurality of supporting rollers to be supported on the plurality of supporting rollers, the clothing processing drum assembly defines a clothing processing chamber, a portion of the clothing processing drum assembly extends from the through opening into the ventilation chamber and has an air inlet, the air inlet connects the ventilation chamber and the clothing processing chamber, and the air duct connects the ventilation chamber and the clothing processing chamber.

2. The clothes dryer according to claim 1, characterized in that: The laundry treatment drum assembly has an annular matching wall, and the plurality of supporting rollers match the annular matching wall; The annular matching wall extends along the axial direction of the laundry processing drum assembly, or the annular matching wall extends outwardly along the axial direction of the laundry processing drum assembly in a direction away from the air duct shell assembly.

3. The clothes dryer according to claim 2, characterized in that: The included angle between the annular mating wall and the central axis of the laundry treatment drum assembly is less than 45°.

4. The clothes dryer according to claim 2, characterized in that: The axial direction of the supporting roller is parallel to the axial direction of the laundry processing tub assembly, and the dimension of the annular matching wall in the axial direction of the laundry processing tub assembly is larger than the dimension of the supporting roller in the axial direction.

5. The clothes dryer according to claim 2, characterized in that: The laundry treatment drum assembly comprises: A barrel, wherein one axial end of the barrel has an open opening and the other end has a clothing access opening; an air inlet hood, the air inlet hood covering the open opening and defining an air inlet cavity communicating with the inner cavity of the barrel, the laundry processing cavity including the inner cavity of the barrel and the air inlet cavity, at least a portion of the air inlet hood extending from the through opening into the ventilation cavity; Wherein, the annular matching wall is located on the cylinder and / or the air inlet cover.

6. The clothes dryer according to claim 5, characterized in that: The air inlet cavity includes a first chamber, the air inlet cover has a first extension portion extending in a direction away from the cylinder, the first extension portion extends into the ventilation cavity and defines the first chamber, and the air inlet portion is arranged on the first extension portion.

7. The clothes dryer according to claim 6, characterized in that: The air inlet cavity includes a second chamber, and the air inlet cover also has a second extension portion extending in a direction away from the cylinder, the second extension portion is a non-porous structure and defines the second chamber; The second extension portion is located between the first extension portion and the cylinder, and the first extension portion extends in a direction away from the cylinder relative to the second extension portion. In the axial direction of the cylinder, the second chamber is connected between the first chamber and the inner cavity of the cylinder.

8. The clothes dryer according to claim 7, characterized in that: At least a portion of the second extension forms the annular mating wall.

9. The clothes dryer according to claim 5, characterized in that: A sealing ring is provided between the side of the air duct housing assembly facing the clothes processing drum assembly and the clothes processing drum assembly, and the sealing ring surrounds the outer side of the through opening.

10. The clothes dryer according to any one of claims 1 to 9, characterized in that: The air duct shell component also has an air outlet located on one side of the through opening, the air outlet connects the ventilation cavity and the air duct, and a wind wheel arranged opposite to the air outlet is arranged in the ventilation cavity.

11. The clothes dryer according to claim 10, characterized in that: The mounting seat is located below the laundry processing tub assembly, and the wind wheel is located obliquely below the laundry processing tub assembly; Wherein, at least two of the support rollers are located on both sides of a longitudinal section of the laundry processing drum assembly passing through a central axis, and one of the support rollers disposed close to the wind wheel is higher than the other support roller.

12. The clothes dryer according to any one of claims 1 to 9, characterized in that: The air duct shell assembly comprises: A support plate, wherein the through opening is provided on the support plate; An air duct shell is connected to one side of the support plate in the thickness direction and covers the through opening, and the air duct shell defines the ventilation cavity.

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