Air duct shell assembly of clothes dryer and clothes dryer

Abstract

The utility model discloses an air duct shell assembly of a clothes dryer and the clothes dryer, and the air duct shell assembly of the clothes dryer comprises a supporting plate, a first air duct and a second air duct, the air duct shell is arranged on one side of the supporting plate in the thickness direction, a ventilation cavity is defined by the air duct shell and the supporting plate, and the first through opening and the second through opening communicate with the ventilation cavity; wherein the air duct shell comprises the cover body and the volute which are independently formed, and the cover body and the volute of the air duct shell assembly of the clothes dryer can be independently produced and formed and do not need to be made of uniform materials, so that the production and processing difficulty of the air duct shell is greatly reduced, the production cost is reduced, and the light weight of the clothes dryer is realized.

Description

Technical Field

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

[0002] In the related art, the air duct shell is an integrated molding structure. Since the overall structure of the air duct shell is relatively complex and the production difficulty is relatively high, the production cost is greatly increased. In addition, the air duct shell is made of the same material as a whole, and it is impossible to design it differently according to different requirements of different positions, which is not conducive to the overall lightweight of the dryer. There is room for improvement. Utility Model Content

[0003] 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 an air duct shell assembly of a clothes dryer, the cover body and the volute of the air duct shell assembly of the clothes dryer can be produced and formed separately, and do not need to be made of a unified material, which greatly reduces the production and processing difficulty of the air duct shell, reduces the production cost, and realizes the lightweight of the clothes dryer.

[0004] The utility model also provides a clothes dryer having the air duct shell assembly of the clothes dryer.

[0005] According to an embodiment of the utility model, the air duct housing assembly of the clothes dryer includes: a support plate, the support plate is provided with a first opening and a second opening;

[0006] An air duct shell, the air duct shell is arranged on one side of the support plate in the thickness direction and defines a ventilation cavity with the support plate, and the first through opening and the second through opening are both connected to the ventilation cavity;

[0007] Wherein, the air duct shell includes a cover body and a volute which are formed separately.

[0008] According to the air duct shell assembly of the dryer in the embodiment of the utility model, the cover body and the volute of the air duct shell assembly of the dryer can be produced and formed separately, and there is no need to be made of a unified material, which greatly reduces the difficulty of production and processing of the air duct shell, reduces production costs, and realizes lightweighting of the dryer.

[0009] In addition, the air duct housing assembly of the clothes dryer according to the embodiment of the utility model may also have the following additional technical features:

[0010] According to some embodiments of the present invention, the cover body is a metal part; and / or the volute is a plastic part.

[0011] According to some embodiments of the present invention, the cover covers at least a portion of the first opening, and the volute covers the second opening.

[0012] According to some embodiments of the present invention, the cover body and the volute are partially overlapped and arranged close to each other to achieve a sealed fit.

[0013] According to some embodiments of the present invention, the distance between the portion where the cover body and the volute are stacked and the center of the first opening is smaller than the radius of the first opening.

[0014] According to some embodiments of the utility model, a volute tongue portion is formed on the volute, and a projection of the volute tongue portion on the support plate is located between the first opening and the second opening.

[0015] According to some embodiments of the utility model, the cover body is sealed with the volute and both are connected to the support plate;

[0016] And / or, the cover body and the support plate are integrally formed; or, the cover body and the support plate are separately formed and mechanically connected.

[0017] According to some embodiments of the present invention, the cover body covers at least a portion of the first opening, and a support member is provided on the cover body for supporting a clothes processing drum assembly of the clothes dryer.

[0018] According to some embodiments of the present invention, the support member comprises:

[0019] A bearing seat, the bearing seat is arranged on the cover body;

[0020] A bearing is disposed on the bearing seat and is used to cooperate with the rotating shaft on the clothing processing drum assembly to support the clothing processing drum assembly.

[0021] According to some embodiments of the utility model, the cover body has a placement recess on the side facing away from the first opening, the bearing seat is arranged in the placement recess and the shape of the bearing seat is adapted to the shape of the placement recess, and the bottom wall of the placement recess is provided with a through hole to allow the bearing seat or the rotating shaft to pass through.

[0022] According to some embodiments of the present utility model, the bearing seat includes a first seat body and a second seat body, the first seat body and the second seat body are arranged opposite to each other and define an installation space;

[0023] Wherein, the bearing is a rolling bearing and is arranged in the installation space, the first seat body and the second seat body are stopped at opposite sides of the outer ring of the rolling bearing, and a limiting step is provided on the rotating shaft, and the limiting step is stopped at one side of the inner ring of the rolling bearing.

[0024] A clothes dryer according to another aspect of the present invention comprises:

[0025] a laundry treatment drum assembly, the laundry treatment drum assembly defining a laundry treatment chamber and having an air inlet; and,

[0026] An air duct shell assembly, wherein the air duct shell assembly is the air duct shell assembly of the above-mentioned clothes dryer, and the air inlet portion is connected to the ventilation cavity and the clothes processing cavity.

[0027] According to some embodiments of the present invention, the clothing processing drum assembly has a first extension portion, which extends from the first opening into the ventilation cavity and defines a portion of the clothing processing cavity, and the air inlet portion is provided at the first extension portion.

[0028] According to some embodiments of the present utility model, a rotating shaft is provided on a wall of the laundry processing drum assembly opposite to the cover body, and the rotating shaft is rotatably supported on the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model;

[0030] Figure 2 is a partial structural schematic diagram of a clothes dryer according to an embodiment of the utility model;

[0031] Figure 3 is a partial exploded view of a clothes dryer according to an embodiment of the utility model;

[0032] Figure 4 yes Figure 3 A local enlarged view at point A;

[0033] Figure 5 is a partial exploded view of a clothes dryer according to an embodiment of the utility model;

[0034] Figure 6 is a partial cross-sectional view of the rotating shaft of the clothes processing drum assembly of the clothes dryer according to an embodiment of the utility model;

[0035] Figure 7 is a partial cross-sectional view of the sealing portion between the clothes processing drum assembly and the support plate of the clothes dryer according to an embodiment of the utility model;

[0036] Figure 8 is a partial cross-sectional view of a clothes processing drum assembly according to an embodiment of the utility model;

[0037] Fig. 9 It is a structural schematic diagram of a support plate according to an embodiment of the utility model.

[0038] Reference numerals:

[0039] Air duct shell assembly 1, support member 11, bearing seat 111, first seat body 1111, second seat body 1112, bearing 112, support plate 12, protective structure 121, air duct shell 13, cover body 131, placement recess 1311, through hole 1312, volute 132, volute tongue 1321, ventilation chamber 101, first opening 1011, second opening 1012, clothing processing drum assembly 2, drum body 211, air inlet cover 22, accommodating recess 221, first extension portion 223, second extension portion 224, annular stop protrusion 225, air inlet portion 202, rotating shaft 23, limiting step 231, clothing processing chamber 201, sealing ring 3. DETAILED DESCRIPTION

[0040] 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.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "vertical", "width", "thickness", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] 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.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, 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" or "above" a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0045] Reference below Figure 1-Figure 9 The air duct housing assembly 1 of a clothes dryer according to an embodiment of the present utility model is described.

[0046] The air duct housing assembly 1 of the clothes dryer according to the embodiment of the utility model may include: a support plate 12 and an air duct housing 13 .

[0047] The support plate 12 is provided with a first opening 1011 and a second opening 1012, the air duct housing 13 is provided on one side of the support plate 12 in the thickness direction and defines a ventilation cavity 101 with the support plate 12, and the first opening 1011 and the second opening 1012 are both in communication with the ventilation cavity 101. In some embodiments, the airflow flows from the inner cavity of the clothing treatment drum assembly 2 to the second opening 1012, enters the ventilation cavity 101 from the second opening 1012, flows to the first opening 1011 via the ventilation cavity 101, and flows to the inner cavity of the clothing treatment drum assembly 2 through the first opening 1011.

[0048] In the related art, the air duct shell 13 is an integrated structure. Since the overall structure of the air duct shell 13 is relatively complex and the production difficulty is relatively high, the production cost is greatly increased. In addition, the air duct shell 13 is made of the same material as a whole and cannot be designed differently according to different requirements of different positions, which is not conducive to the overall lightweight of the dryer.

[0049] To this end, the embodiment of the utility model designs an air duct shell 13 including an air duct shell assembly 1 that includes a separately molded cover body 131 and a volute 132. As a result, the cover body 131 and the volute 132 can be produced and molded separately, which greatly reduces the difficulty of producing and processing the air duct shell 13 and reduces the production cost. In addition, the cover body 131 and the volute 132 can be made of different materials according to different strength requirements, without the need to be made of a uniform material. For the parts with lower strength requirements, materials with low strength and lighter material can be used. On the one hand, the production cost is reduced, and on the other hand, the lightweight of the dryer is achieved. For the parts with higher strength requirements, high-strength metal materials can be used to ensure that the strength requirements are met.

[0050] According to the air duct shell assembly 1 of the dryer in the embodiment of the utility model, the cover body 131 and the volute 132 of the air duct shell assembly 1 of the dryer can be produced and formed separately, and there is no need to be made of a unified material, which greatly reduces the difficulty of production and processing of the air duct shell 13, reduces production costs, and realizes lightweighting of the dryer.

[0051] In some embodiments, the cover body 131 may be a metal member, so that the cover body 131 has higher strength by using high-strength metal materials, thereby having sufficient strength to support the clothes processing drum assembly 2 and be connected to the clothes processing drum assembly 2 .

[0052] In some embodiments, the volute 132 can be a plastic part to reduce the difficulty of production and processing, while utilizing the low density and high strength characteristics of the plastic material to make the volute 132 have sufficient strength, ensure the stability of the setting of the volute 132, and at the same time make the weight of the volute 132 lighter, thereby achieving lightweight dryer.

[0053] Refer to the picture - Figure 5 The cover body 131 covers at least a portion of the first opening 1011. Since the first through hole is arranged opposite to the clothing processing drum assembly 2, the cover body 131 covers at least a portion of the first opening 1011, that is, the cover body 131 is correspondingly arranged on the rear side of at least a portion of the clothing processing drum assembly 2.

[0054] Furthermore, the volute 132 covers the second opening 1012, and the airflow enters the cavity defined between the volute 132 and the support plate 12 through the second through hole, then flows to the cavity defined between the cover body 131 and the support plate 12, and then enters the inner cavity of the clothing processing drum assembly 2 through the first through hole.

[0055] In combination with the above, the cover 131 covers at least a portion of the first opening 1011 and the volute 132 covers the second opening 1012, that is, the projection of the connection between the cover 131 and the volute 132 on the support plate 12 is located between the first opening 1011 and the second opening 1012 or on the first opening 1011. The first opening 1011 and the second opening 1012 are different in size, and in order to make the air flow smoother, the air duct shell 13 is further provided with a volute 132 structure between the first opening 1011 and the second opening 1012, resulting in a complex structure of the air duct shell 13. By forming the partial structure of the air duct shell 13 corresponding to the first opening 1011 and the partial structure of the air duct shell 13 corresponding to the second opening 1012 separately, and the connection is provided at the position corresponding to the first opening 1011 on the air duct shell 13, it is helpful to reduce the difficulty of producing the air duct shell 13.

[0056] In some embodiments, the clothing processing drum assembly 2 is rotatably connected to the air duct shell 13, that is, the clothing processing drum assembly 2 is supported and arranged on the air duct shell 13. At this time, there are higher requirements on the strength of the connection position between the clothing processing drum assembly 2 and the air duct shell 13 on the air duct shell 13. Therefore, the part of the air duct shell 13 connected to the clothing processing drum assembly 2 should be made of high-strength material to ensure that it can stably support the clothing processing drum assembly 2, and the remaining structure of the air duct shell 13 that does not participate in supporting the clothing processing drum assembly 2 can choose materials with lower strength and lighter weight.

[0057] Among them, the first through hole is arranged opposite to the clothing processing drum assembly 2, and the cover body 131 covers at least a portion of the first opening 1011, that is, the clothing processing drum assembly 2 can be supported and arranged on the cover body 131. At this time, the cover body 131 can be made of a higher strength material, such as a high-strength metal material, to ensure that the cover body 131 can stably support and fix the clothing processing drum assembly 2.

[0058] Furthermore, the volute 132 covers the second opening 1012. Since the volute 132 does not need to play a supporting role and only needs to guide the airflow to flow to the first opening 1011, the dryer has a lower strength requirement for the volute 132. Therefore, the volute 132 can be made of a material with lower strength but lighter weight, such as plastic material, to achieve lightweight dryer.

[0059] Combination Figure 1-Figure 5 In the illustrated embodiment, the cover body 131 and the volute 132 are partially stacked close to each other to achieve a sealed fit. The stacked portions of the cover body 131 and the volute 132 can increase the contact area at the sealing point between the cover body 131 and the volute 132, thereby better achieving the seal between the cover body 131 and the volute 132.

[0060] Reference Figure 1-Figure 5 The distance between the overlapping portion of the cover body 131 and the volute 132 and the center of the first opening 1011 is less than the radius of the first opening 1011, that is, the overlapping portion of the cover body 131 and the volute 132 is located at the rear side of the first opening 1011. Since the structure of this portion is simple, the overlapping portion of the cover body 131 and the volute 132 is flat, which is beneficial to the sealing between the cover body 131 and the volute 132. In addition, the cover body 131 does not need to cover the entire rear side of the first opening 1011. While ensuring that the cover body 131 has sufficient strength to support the clothing processing drum assembly 2, and the cover body 131 can be arranged at the rear side of the center position of the clothing processing drum assembly 2 to support the clothing processing drum assembly 2, the volume of the cover body 131 with a larger material mass is reduced as much as possible, thereby reducing the overall mass of the air duct shell 13, thereby achieving lightweight dryer.

[0061] Furthermore, since the connection between the cover body 131 and the support plate 12 is arranged around the center of the first opening 1011, the distance between each connection and the connection between the cover body 131 and the clothing processing drum assembly 2 is the same, so that each part can be evenly stressed, which is more conducive to the cover body 131 supporting the clothing processing drum assembly 2.

[0062] like Figure 1-Figure 5 As shown, a volute tongue portion 1321 is formed on the volute 132, and the projection of the volute tongue portion 1321 on the support plate 12 is located between the first opening 1011 and the second opening 1012. The shape and size of the volute tongue portion 1321 can improve the flow characteristics of the airflow and reduce wind resistance, so that the airflow can flow more smoothly from the second opening 1012 to the first opening 1011, reducing noise and vibration.

[0063] Since the structure of the volute tongue portion 1321 is relatively complex, by arranging the volute tongue portion 1321 on the volute 132, the processing difficulty of the cover body 131 can be reduced, and the shape of the cover body 131 is uniform, which is conducive to the cover body 131 to more stably support the clothing processing drum assembly 2.

[0064] The air duct housing 13 includes a separately formed cover body 131 and a volute 132, and the cover body 131 and the volute 132 are sealed and matched to ensure the sealing of the ventilation cavity 101 and prevent the airflow in the ventilation cavity 101 from leaking from the matching point between the cover body 131 and the volute 132. The cover body 131 and the volute 132 are both connected to the support plate 12, so as to strengthen the strength of the cover body 131 and the volute 132 by using the high-strength support plate 12, and ensure the stability of the arrangement of the cover body 131 and the volute 132.

[0065] In some embodiments, the cover body 131 and the support plate 12 can be an integrally formed structure to reduce the number of installation steps and make the connection between the cover body 131 and the support plate 12 tighter. The cover body 131 can rely on the high-strength support plate 12 to improve its own strength, more stably support the clothing processing drum assembly 2, and better achieve the sealing between the cover body 131 and the support plate 12.

[0066] Alternatively, the cover body 131 and the support plate 12 are separately formed and mechanically connected, and the mechanical connection method can be welding, rivet connection, bolt connection, etc. The cover body 131 and the support plate 12 are separately formed to reduce processing difficulty and reduce production costs.

[0067] In some embodiments, the clothing processing drum assembly 2 is rotatably supported on a roller disposed on the support plate 12, thereby eliminating the need for a rotating shaft 23 to be connected between the clothing processing drum and the air duct shell assembly 1, thereby simplifying the dryer structure and reducing production costs.

[0068] In other embodiments, the clothing processing drum assembly 2 is rotatably connected to the air duct shell 13, that is, the clothing processing drum assembly 2 is supported and arranged on the air duct shell 13. At this time, higher requirements are placed on the strength of the connection between the clothing processing drum assembly 2 and the air duct shell 13 on the air duct shell 13. Therefore, in the air duct shell 13, the part connected to the clothing processing drum assembly 2 should be made of high-strength material, while the remaining parts can be made of lighter materials.

[0069] Among them, the first through hole is arranged opposite to the clothing processing drum assembly 2, and the cover body 131 covers at least a portion of the first opening 1011, that is, the clothing processing drum assembly 2 can be supported and arranged on the cover body 131. At this time, the cover body 131 can be made of a material with higher strength to stably support the clothing processing drum assembly 2.

[0070] Specifically, refer to Figure 6 A support member 11 is provided on the cover body 131, and the support member 11 is used to be connected to the clothes processing drum assembly 2, so that the cover body 131 can support the clothes processing drum assembly 2 of the dryer.

[0071] The support member 11 includes: a bearing seat 111 and a bearing 112. The bearing seat 111 is arranged on the cover body 131. The bearing seat 111 is fixedly arranged on the cover body 131 to provide an installation position for the bearing 112, and to limit the bearing 112 to ensure the stability of the bearing 112. The bearing 112 is arranged on the bearing seat 111. The bearing 112 is used to cooperate with the rotating shaft 23 on the clothing treatment drum assembly 2 to support the clothing treatment drum assembly 2. Therefore, the clothing treatment drum assembly 2 can be rotatably connected to the bearing seat 111 through the bearing 112, that is, the clothing treatment drum assembly 2 is supported and arranged on the cover body 131, and the clothing treatment drum assembly 2 can rotate under the drive of the motor.

[0072] Specifically, the bearing 112 includes an outer bearing and an inner bearing. The inner bearing can be rotatably assembled in the inner hole of the outer bearing. The outer bearing is fixedly connected to the bearing seat 111, and the inner bearing is fixedly connected to the rotating shaft 23 of the clothing processing drum assembly 2, so that the clothing processing drum assembly 2 can rotate relative to the bearing seat 111 and the cover body 131 fixedly connected to the bearing seat 111, and can be supported and arranged on the cover body 131.

[0073] like Figure 6 As shown, the cover body 131 has a placement recess 1311 on the side facing away from the first opening 1011, and the bearing seat 111 is arranged in the placement recess 1311. By arranging the placement recess 1311 on the cover body 131, not only can an installation space be provided for the bearing seat 111, but also the matching area between the cover body 131 and the bearing seat 111 can be increased, so that the arrangement of the bearing seat 111 is more stable. Furthermore, it can also avoid that the arrangement of the bearing seat 111 affects the overall size of the dryer in the axial direction of the clothing processing drum assembly 2, thereby realizing the miniaturization and lightweight of the dryer.

[0074] Among them, the shape of the bearing seat 111 is adapted to the shape of the placing recess 1311, so that the bearing seat 111 can be completely embedded in the placing recess 1311, and the inner wall of the placing recess 1311 is used to limit the bearing seat 111 to ensure the stability of the setting of the bearing seat 111. It can also avoid the placing recess 1311 occupying too much space to affect the space used for ventilation inside the ventilation cavity 101, and reduce the influence of the setting of the placing recess 1311 on the wind resistance in the ventilation cavity 101.

[0075] Furthermore, the placement recess 1311 is arranged on the side of the cover body 131 facing away from the first opening 1011, so that the bearing seat 111 can be arranged outside the ventilation cavity 101, so that the bearing 112 and the bearing seat 111 do not need to directly contact the airflow in the ventilation cavity 101, thereby preventing water vapor in the airflow from corroding the bearing 112 or the bearing seat 111 and affecting the service life of the bearing 112 and the bearing seat 111.

[0076] The bottom wall of the recess 1311 is provided with a through hole 1312 to allow the bearing seat 111 or the rotating shaft 23 to pass through, so as to connect the bearing seat 111 arranged at the rear side of the air duct shell 13 and the clothing processing drum assembly 2 arranged at the front side of the air duct shell 13.

[0077] like Figure 6 As shown, the bearing seat 111 includes a first seat body 1111 and a second seat body 1112, which are arranged relative to each other and define an installation space, and the installation space can provide space for the installation of the bearing 112, wherein the bearing 112 is a rolling bearing and is arranged in the installation space, the rolling bearing includes an outer bearing and an inner bearing, the outer peripheral bearing 112 is fixedly arranged in the installation space, and the inner bearing is fixedly connected to the rotating shaft 23, and the first seat body 1111 and the second seat body 1112 are stopped at opposite sides of the outer ring of the rolling bearing, that is, the first seat body 1111 and the second seat body 1112 respectively limit the bearing 112 on both sides of the axial direction of the bearing 112 to ensure the stability of the bearing 112. A limiting step 231 is provided on the rotating shaft 23, and the limiting step 231 stops on one side of the inner ring of the rolling bearing to prevent the rotating shaft 23 from moving in the axial direction relative to the rolling bearing, affecting the stability of the connection of the rotating shaft 23. The inner bearing of the inner ring of the rolling bearing is fixedly connected to the rotating shaft 23 by an interference fit, so that the rotating shaft 23 and the clothing processing drum assembly 2 connected to the rotating shaft 23 can rotate relative to the air duct shell assembly 1.

[0078] According to another aspect of the present invention, a clothes dryer comprises: a clothes processing drum assembly 2 and the above-mentioned air duct shell assembly 1 of the clothes dryer.

[0079] The air duct shell assembly 1 of a traditional clothes dryer defines a ventilation cavity 101, and the clothing processing drum assembly 2 is arranged on one side of the air duct shell assembly 1 and is rotatably connected to the support plate 12. The clothing processing drum defines a clothing processing cavity 201. The capacity of the clothing processing cavity 201 is limited by the size of the space in front of the air duct shell assembly 1 inside the dryer, and a hole 441 is required to be opened at a position corresponding to the clothing processing drum assembly 2 on the side wall of the air duct shell assembly 1 to connect the inner cavity of the clothing processing drum assembly 2 and the ventilation cavity 101. In the process of the airflow flowing into the inner cavity of the clothing processing drum assembly 2, it is blocked by multiple structures, and the airflow resistance is large, which affects the airflow flow rate and flow rate.

[0080] In the embodiment of the utility model, a first opening 1011 is provided on the support plate 12 of the air duct shell assembly 1, and the clothing processing drum assembly 2 has an air inlet 202, which connects the ventilation chamber 101 and the clothing processing chamber 201. Therefore, the airflow only needs to pass through the air inlet 202 to enter the clothing processing chamber 201 from the ventilation chamber 101, which greatly reduces the wind resistance of the airflow flowing into the clothing processing chamber 201. Moreover, the clothing processing drum assembly 2 has no connection with the support plate 12, and part of the structure of the clothing processing drum assembly 2 can extend into the ventilation chamber 101 through the first opening 1011. The capacity of the clothing processing chamber 201 is no longer limited by the space limitation in front of the air duct shell assembly 1, thereby increasing the capacity of the clothing processing chamber 201.

[0081] Since the support of the clothes processing drum assembly 2 needs to rely on a high-strength support structure, a rotating shaft 23 is provided on the wall of the clothes processing drum assembly 2 opposite to the cover body 131, and the rotating shaft 23 is rotatably supported on the cover body 131. Therefore, the cover connected to the rotating shaft 23 of the clothes processing drum assembly 2 is made of high-strength material and connected to the support plate 12, so as to ensure the strength of the cover by relying on the strength of the high-strength material and the strength of the support plate 12, thereby ensuring the stability of the setting of the clothes processing drum assembly 2.

[0082] Among them, the clothing processing drum assembly 2 has a first extension portion 223, the first extension portion 223 extends from the first opening 1011 into the ventilation cavity 101 and defines a part of the clothing processing cavity 201, the first extension portion 223 can increase the capacity of the clothing processing cavity 201, and the air inlet portion 202 is arranged on the first extension portion 223 so that the air inlet portion 202 can directly connect the ventilation cavity 101 and the clothing processing cavity 201.

[0083] like Figure 5-Figure 8As shown, the clothes treatment drum assembly 2 comprises: a drum body 211 and an air inlet cover 22. The drum body 211 has a clothes taking-in and putting-out opening at one axial end and an open opening at the other axial end. The clothes taking-in and putting-out opening faces the front side of the clothes dryer, and the user can put clothes into the clothes treatment chamber 201 through the clothes taking-in and putting-out opening. The open opening faces the rear side of the clothes dryer, and the airflow can enter the clothes treatment chamber 201 through the open opening to dry the clothes. The air inlet cover 22 covers the open opening to define the clothes treatment chamber 201 with the drum body 211. On the one hand, the air inlet cover 22 can separate the ventilation chamber 101 from the clothes treatment chamber 201 to prevent the clothes from entering the ventilation chamber 101 through the open opening. On the other hand, the air inlet cover 22 provides an installation position for the setting of the rotating shaft 23. The rotating shaft 23 is arranged on the air inlet cover 22, ensuring that the rotating shaft 23 can stably support the clothes treatment drum assembly 2 as a whole.

[0084] Combination Figure 5-Figure 8 In the illustrated embodiment, the air inlet cover 22 has a first extension portion 223 extending in a direction away from the barrel 211, and the first extension portion 223 extends into the ventilation cavity 101. The first extension portion 223 can increase the capacity of the clothing processing cavity 201. The air inlet portion 202 is arranged on the first extension portion 223, so that the air inlet portion 202 can directly connect the ventilation cavity 101 and the clothing processing cavity 201, and the rotating shaft 23 is arranged on the first extension portion 223, so that the rotating shaft 23 can be arranged at the center of the clothing processing drum assembly 2.

[0085] Reference Figure 5-Figure 8 The air inlet cover 22 also has a second extension portion 224 extending in a direction away from the barrel 211. The second extension portion 224 is a hole-free structure. The second extension portion 224 does not correspond to the first opening 1011. The setting of the second extension portion 224 can separate the clothing processing barrel assembly 2 from the air duct shell assembly 1 to avoid interference between the clothing processing barrel assembly 2 and the air duct shell assembly 1 during rotation.

[0086] The second extending portion 224 is located between the first extending portion 223 and the tube body 211 , and the first extending portion 223 extends in a direction away from the tube body 211 relative to the second extending portion 224 .

[0087] Reference Figure 3 and Fig. 9 The support plate 12 also has a second opening 1012 located on one side of the first opening 1011. The second opening 1012 can deliver airflow into the ventilation cavity 101. The airflow enters the ventilation cavity 101 through the second opening 1012, and then enters the clothing processing cavity 201 through the first opening 1011 to participate in clothing processing. A wind wheel is arranged in the ventilation cavity 101 opposite to the second opening 1012, which is used to drive the airflow to circulate in the ventilation cavity 101 and the clothing processing cavity 201.

[0088] According to some embodiments of the utility model, the clothes dryer further comprises a mounting seat, which defines an air duct to connect the clothing processing chamber 201 and the ventilation chamber 101, and a heating element is arranged in the air duct. During the operation of the clothes dryer, the wet and cold airflow in the clothing processing chamber 201 passes through the air duct defined by the mounting seat, is heated and dehumidified in the air duct, passes through the second opening 1012, and enters the ventilation chamber 101 defined by the air duct shell assembly 1 under the drive of the wind wheel, and the dry and hot airflow in the ventilation chamber 101 then enters the clothing processing chamber 201 through the air inlet 202 of the clothing processing drum assembly 2, and the clothing is dried.

[0089] According to some embodiments of the utility model, the clothes dryer 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, 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.

[0090] A specific embodiment of the clothes dryer of the present utility model is described below with reference to the accompanying drawings.

[0091] like Figure 1-Figure 9 As shown, the clothes dryer includes a mounting base, a heat pump system, an air duct housing assembly 1 and a clothes processing drum assembly 2 .

[0092] like Figure 1-Figure 6 As shown, the air duct housing 13 includes a separately formed cover 131 and a volute 132, the cover 131 and the volute 132 are sealed together, the cover 131 and the volute 132 are stacked near each other to achieve a sealed fit, and the stacked portion of the cover 131 and the volute 132 can increase the contact area of ​​the seal between the cover 131 and the volute 132, thereby better achieving the seal between the cover 131 and the volute 132. The cover 131 and the volute 132 are both connected to the support plate 12, so as to use the high-strength support plate 12 to strengthen the strength of the cover 131 and the volute 132, and ensure the stability of the cover 131 and the volute 132.

[0093] The cover body 131 and the volute 132 can be made of different materials according to different strength requirements. For example, the cover body 131 is a metal part and the volute 132 is a plastic part. Since the two do not need to be made of the same material, the production cost is reduced and the weight of the dryer is reduced.

[0094] The distance between the portion where the cover body 131 and the volute 132 are stacked and the center of the first opening 1011 is smaller than the radius of the first opening 1011, that is, the portion where the cover body 131 and the volute 132 are stacked is located at the rear side of the first opening 1011. Since this portion has a simple structure and the portion where the cover body 131 and the volute 132 are stacked is flat, it is beneficial to the sealing between the cover body 131 and the volute 132. In addition, the cover body 131 does not need to cover the entire rear side of the first opening 1011. While ensuring that the cover body 131 has sufficient strength to support the clothing processing drum assembly 2 and the cover body 131 can be arranged at the rear side of the center position of the clothing processing drum assembly 2 to support the clothing processing drum assembly 2, the volume of the cover body 131 with a larger material mass is reduced as much as possible, thereby reducing the overall mass of the air duct shell 13, thereby achieving lightweight dryer.

[0095] Furthermore, since the connection between the cover body 131 and the support plate 12 is arranged around the center of the first opening 1011, the distance between each connection and the connection between the cover body 131 and the clothing processing drum assembly 2 is the same, so that each part can be evenly stressed, which is more conducive to the cover body 131 supporting the clothing processing drum assembly 2.

[0096] A volute tongue portion 1321 is formed on the volute 132, and the projection of the volute tongue portion 1321 on the support plate 12 is located between the first opening 1011 and the second opening 1012. The shape and size of the volute tongue portion 1321 can improve the flow characteristics of the airflow and reduce wind resistance, so that the airflow can flow more smoothly from the second opening 1012 to the first opening 1011, reducing noise and vibration.

[0097] Since the structure of the volute tongue portion 1321 is relatively complex, by arranging the volute tongue portion 1321 on the volute 132, the processing difficulty of the cover body 131 can be reduced, and the shape of the cover body 131 is uniform, which is conducive to the cover body 131 to more stably support the clothing processing drum assembly 2.

[0098] The clothes processing drum assembly 2 can be supported on the cover body 131 . Since the cover body 131 is made of a relatively high-strength metal material, the cover body 131 can stably support the clothes processing drum assembly 2 .

[0099] The clothes treatment drum assembly 2 defines a clothes treatment chamber 201, which is used to accommodate clothes to be treated. The capacity of the clothes treatment chamber 201 affects the number of clothes that the dryer can treat at the same time and the size of clothes that the dryer can treat. In order to improve the user experience, the volume of the clothes treatment chamber 201 should be as large as possible. The air duct housing assembly 1 defines a ventilation chamber 101, and the dryer can deliver high-temperature airflow into the clothes treatment chamber 201 through the ventilation chamber 101 to achieve the clothes drying function.

[0100] Among them, the air duct shell assembly 1 has a first opening 1011, and a part of the clothing processing drum assembly 2 extends from the first opening 1011 into the ventilation cavity 101. Thus, the clothing processing drum assembly 2 can extend backward until it extends into the ventilation cavity 101. Without changing the external dimensions of the dryer, the clothing processing drum assembly 2 can be designed to be deeper, thereby increasing the capacity of the clothing processing cavity 201. The dryer can process more and larger clothes at the same time, thereby improving the user experience.

[0101] The clothes processing drum assembly 2 has an air inlet 202, which can directly connect the ventilation cavity 101 and the clothes processing cavity 201. That is to say, during the flow of air, the air in the ventilation cavity 101 can directly enter the clothes processing cavity 201 through the air inlet 202. On this basis, the original complex structure of the air outlet area on the air duct housing assembly 1 can directly open a larger first opening 1011, which reduces the production cost of the dryer.

[0102] The clothing processing drum assembly 2 is provided with a rotating shaft 23, that is, one end of the rotating shaft 23 is fixedly connected to the clothing processing drum assembly 2, and the clothing processing drum assembly 2 is rotatably supported on the air duct shell assembly 1 through the rotating shaft 23, so the other end of the rotating shaft 23 is rotatably supported on the air duct shell assembly 1.

[0103] The air duct housing assembly 1 includes a support plate 12 and an air duct housing 13. The first 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 first opening 1011, and the air duct housing 13 and the support plate 12 together define a ventilation cavity 101.

[0104] The clothes treatment drum assembly 2 comprises: a drum body 211 and an air inlet cover 22. The drum body 211 has a clothes taking-in and putting-out opening at one axial end and an open opening at the other axial end, wherein the clothes taking-in and putting-out opening faces the front side of the clothes dryer, and the user can put clothes into the clothes treatment chamber 201 through the clothes taking-in and putting-out opening, and the open opening faces the rear side of the clothes dryer, and the airflow can enter the cavity defined by the drum body 211 through the open opening to dry the clothes, and the cavity defined by the drum body 211 is the part of the clothes treatment chamber 201 mainly used for accommodating clothes. The air inlet cover 22 covers the open opening to define the clothes treatment chamber 201 together with the drum body 211, and the air inlet cover 22 can separate the ventilation chamber 101 from the clothes treatment chamber 201 on the one hand, and prevent the clothes from entering the ventilation chamber 101 through the open opening, and on the other hand, the air inlet cover 22 provides an installation position for the setting of the rotating shaft 23, and the rotating shaft 23 is arranged on the air inlet cover 22, so as to ensure that the rotating shaft 23 can stably support the clothes treatment drum assembly 2 as a whole.

[0105] The air inlet cover 22 defines another part of the cavity in the clothing processing cavity 201, which can increase the capacity of the clothing processing cavity 201 and improve the user experience.

[0106] At least a portion of the air inlet cover 22 extends from the first opening 1011 into the ventilation cavity 101, so that the clothing processing cavity 201 can extend into the ventilation cavity 101, and part of the space in the ventilation cavity 101 is used to increase the depth of the clothing processing cavity 201 and increase the capacity of the clothing processing cavity 201. The air inlet portion 202 is arranged around the rotating shaft 23 to ensure the strength of the connection between the rotating shaft 23 and the air inlet cover 22, to avoid the setting of the air inlet portion 202 affecting the connection between the rotating shaft 23 and the air inlet cover 22, and to avoid the setting of the rotating shaft 23 affecting the air inlet area of ​​the air inlet portion 202, to ensure the air intake volume of the air inlet portion 202.

[0107] The middle part of the air inlet cover 22 extends in the direction close to the clothing loading and unloading port to form a accommodating recess 221 on the outer surface of the air inlet cover 22. The rotating shaft 23 is arranged on the bottom wall of the accommodating recess 221 and protrudes from the plane where the opening of the accommodating recess 221 is located. The opening of the accommodating recess 221 can provide an installation space for the setting of the rotating shaft 23 and the connecting structure between the rotating shaft 23 and the air inlet cover 22, thereby avoiding interference with the structure on the rear side and affecting the normal operation and rotation of the clothing processing drum assembly 2. It can also avoid that the setting of the rotating shaft 23 and the connecting structure between the rotating shaft 23 and the air inlet cover 22 increases the axial size of the clothing processing drum assembly 2 and affects the overall volume of the dryer.

[0108] The rotating shaft 23 protrudes from the plane where the opening of the accommodating recess 221 is located, so as to be rotatably connected to the structure of the air duct shell assembly 1 located behind the clothing processing drum assembly 2, so that the clothing processing drum assembly 2 as a whole can be supported and set on the air duct shell assembly 1.

[0109] The accommodating recess 221 is arranged on the outer surface of the air inlet cover 22, which can prevent the setting of the rotating shaft 23 from affecting the flatness of the clothing processing chamber 201, and prevent the setting of the rotating shaft 23 and other structures from increasing the edges and corners in the clothing processing chamber 201 and causing damage to the clothes.

[0110] In some embodiments, the connection structure between the air duct shell assembly 1 and the rotating shaft 23 is arranged on the rear side of the accommodating recess 221. By setting the accommodating recess 221, installation space can also be reserved for the setting of the connection structure between the air duct shell assembly 1 and the rotating shaft 23, so that the internal space distribution of the dryer is more reasonable.

[0111] The air inlet cover 22 has a second extension portion 224 and a first extension portion 223 extending in a direction away from the barrel 211. The first extension portion 223 extends into the ventilation cavity 101. The first extension portion 223 can increase the capacity of the clothing processing cavity 201. The rotating shaft 23 is arranged on the first extension portion 223 so that the rotating shaft 23 can be arranged at the center position of the clothing processing barrel assembly 2.

[0112] The second extension portion 224 is a non-porous structure. The second extension portion 224 can separate the clothes processing drum assembly 2 from the air duct shell assembly 1 to avoid interference between the clothes processing drum assembly 2 and the air duct shell assembly 1 during rotation.

[0113] The second extending portion 224 is located between the first extending portion 223 and the tube body 211 , and the first extending portion 223 extends in a direction away from the tube body 211 relative to the second extending portion 224 .

[0114] The first extension portion 223 includes an end wall arranged opposite to the clothing access opening and a peripheral wall surrounding the end wall, and the air inlet portion 202 is arranged on the end wall of the first extension portion 223 and / or the peripheral wall of the first extension portion 223, wherein the rotating shaft 23 is arranged on the end wall of the first extension portion 223.

[0115] The end wall of the first extension portion 223 is also provided with a structural reinforcement portion 43, at least a portion of which extends along the circumference of the rotating shaft 23 to reinforce the end wall structure of the clothing processing drum assembly 2 for connection with the rotating shaft 23, thereby ensuring the stability of the clothing processing drum assembly 2.

[0116] The first extension part 223 is provided with an air inlet 202 in communication with the clothing processing chamber 201, and the air flow can enter the clothing processing chamber 201 through the air inlet 202 provided on the first extension part 223. The air inlet 202 includes a plurality of air inlet holes, and the plurality of air inlet holes are arranged at intervals on the peripheral wall and the end wall of the first extension part 223, so that the air inlet holes are evenly distributed on the first extension part 223, which ensures, on the one hand, that the weight of the clothing processing drum assembly 2 in all directions is even, and ensures that the clothing processing drum assembly 2 can rotate stably, and on the other hand, during the rotation of the clothing processing drum assembly 2, the air flow can stably enter the clothing processing chamber 201 through the evenly arranged air inlet holes, ensuring the stability of the air flow in the clothing processing chamber 201.

[0117] The end wall of the first extension part 223 is connected to the peripheral wall of the first extension part 223 by an arc transition. When the airflow passes through the connection between the end wall of the first extension part 223 and the peripheral wall of the first extension part 223, the airflow can be smoothly guided by the arc transition section, thereby avoiding the large resistance of the airflow when passing through the turning point, impacting the structure of the first extension part 223 and causing noise, avoiding the loss of airflow, and reducing the difficulty of punching in the production process.

[0118] like Fig. 9 As shown, the shape of the first 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.

[0119] Furthermore, since the first opening 1011 is connected to the ventilation cavity 101, the airflow in the ventilation cavity 101 can flow out through the first opening 1011. When the diameter of the outer wall of the cylinder 211 is smaller than the diameter of the first opening 1011, the airflow will flow out through the gap between the edge of the first opening 1011 and the outer wall of the cylinder 211, causing air volume loss. Therefore, the diameter of the outer wall of the cylinder 211 is larger than the diameter of the first opening 1011.

[0120] Since the clothes treatment drum assembly 2 is easy to collide with the edge of the hole of the first opening 1011 during the installation process, and the edge of the hole of the first opening 1011 is relatively low in strength and the edge of the hole of the first opening 1011 is sharp, which will affect the safety of the installation process, a protective structure 121 is provided at the edge of the first opening 1011, such as Figure 7 As shown, the protective structure 121 can, on the one hand, prevent the edge of the first opening 1011 from being too sharp and affecting the safety during installation, and on the other hand, can improve the strength of the air duct shell assembly 1 at the edge of the first opening 1011 and prevent the edge of the first opening 1011 from deforming when the edge of the first opening 1011 is affected by external force.

[0121] The protection structure 121 may be a flange structure or a curling structure.

[0122] In some embodiments, the air duct shell assembly 1 further has a second opening 1012 located on one side of the first opening 1011, a wind wheel arranged opposite to the second opening 1012 is arranged in the ventilation cavity 101, and the clothes dryer further comprises a mounting seat, the mounting seat defines an air duct to connect the clothing processing cavity 201 and the ventilation cavity 101, and a heating element is arranged in the air duct. During the operation of the clothes dryer, the wet and cold airflow in the clothing processing cavity 201 passes through the air duct defined by the mounting seat, heats up and dehumidifies in the air duct, passes through the second opening 1012, and enters the ventilation cavity 101 defined by the air duct shell assembly 1 under the drive of the wind wheel, and the dry and hot airflow in the ventilation cavity 101 then enters the clothing processing cavity 201 through the air inlet 202 of the clothing processing drum assembly 2, and performs drying treatment on the clothes.

[0123] The clothes dryer also includes: a heat pump system, which 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, 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, 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 evaporator.

[0124] Furthermore, the air inlet cover 22 is an integrated part. During the operation of the dryer, in order to ensure that the clothing processing drum assembly 2 can rotate stably, a gap is provided between the air duct shell assembly 1 and the clothing processing drum assembly 2. The air flow will flow out through the gap, causing air volume loss. Therefore, a sealing ring 3 is provided between the air inlet cover 22 and the air duct shell assembly 1, and the sealing ring 3 surrounds the outside of the first opening 1011, that is, it also surrounds the outside of the air inlet part 202, so as to achieve sealing between the air duct shell assembly 1 and the clothing processing drum assembly 2.

[0125] Furthermore, since the air inlet cover 22 is rotatable relative to the air duct shell assembly 1, in order to fix the sealing ring 3 and prevent the sealing ring 3 structure from falling off and deforming during the rotation of the air inlet cover 22 relative to the air duct shell assembly 1, the sealing ring 3 is fixed on one of the air inlet cover 22 and the air duct shell assembly 1, and the other one is movably cooperated with the sealing ring 3.

[0126] Reference Figure 7-Figure 9 The protection structure 121 includes a limiting flange. Specifically, the edge of the first opening 1011 has a limiting flange extending in the direction close to the cylinder 211. The sealing ring 3 is sleeved on the outside of the limiting flange. That is to say, the limiting flange can limit the sealing ring 3, provide an installation position for the setting of the sealing ring 3, and avoid the sealing ring 3 from moving and affecting the sealing performance.

[0127] Furthermore, the limiting flange is also a protective structure 121 disposed at the edge of the first opening 1011 , and the setting of the limiting flange is more practical.

[0128] The air duct shell assembly 1 is provided with a bearing seat 111 arranged opposite to the first opening 1011, and a bearing 112 is installed on the bearing seat 111. The rotating shaft 23 cooperates with the bearing 112 so that the clothing processing barrel assembly can be rotatably supported on the air duct shell assembly 1. Therefore, the rotating shaft 23 can be rotatably connected to the bearing seat 111 through the bearing 112, and then the rotating shaft 23 can be rotatably connected to the air duct shell assembly 1, and the clothing processing barrel assembly 2 can be rotatably supported and arranged on the air duct shell assembly 1.

[0129] The clothing processing drum assembly 2 has a receiving recess 221 which opens toward the bearing seat 111, and the rotating shaft 23 is arranged on the bottom wall of the receiving recess 221. The opening of the receiving recess 221 can provide an installation space for the setting of the rotating shaft 23 and the connecting structure between the rotating shaft 23 and the air inlet cover 22, thereby avoiding interference with the rear side air duct shell assembly 1, the bearing seat 111 and the mounting structure of the bearing seat 111, thereby affecting the normal operation and rotation of the clothing processing drum assembly 2, and avoiding the setting of the rotating shaft 23 and the connecting structure between the rotating shaft 23 and the air inlet cover 22 from increasing the axial size of the clothing processing drum assembly 2 and affecting the overall volume of the dryer.

[0130] The connecting portion 42 between the air duct shell assembly 1 and the rotating shaft 23 and the bearing seat 111 are arranged on the rear side of the accommodating recess 221. By setting the accommodating recess 221, installation space can also be reserved for the connecting portion 42 between the air duct shell assembly 1 and the rotating shaft 23 and the bearing seat 111, so that the internal space distribution of the dryer is more reasonable.

[0131] The bearing seat 111 at least partially extends from the opening of the accommodating recess 221 into the accommodating recess 221 to enable the bearing 112 to cooperate with the rotating shaft 23, and can shorten the distance between the bearing seat 111 and the connection position between the clothing processing drum assembly 2 and the rotating shaft 23, thereby reducing the stress on the rotating shaft 23.

[0132] The bearing seat 111 includes a first seat body 1111 and a second seat body 1112, which are arranged relative to each other and define an installation space, and the installation space can provide space for the installation of the bearing 112, wherein the bearing 112 is a rolling bearing and is arranged in the installation space, the rolling bearing includes an outer bearing and an inner bearing, the outer peripheral bearing 112 is fixedly arranged in the installation space, and the inner bearing is fixedly connected to the rotating shaft 23, and the first seat body 1111 and the second seat body 1112 are stopped at opposite sides of the outer ring of the rolling bearing, that is, the first seat body 1111 and the second seat body 1112 respectively limit the bearing 112 on both sides of the axial direction of the bearing 112 to ensure the stability of the bearing 112. A limiting step 231 is provided on the rotating shaft 23, and the limiting step 231 stops on one side of the inner ring of the rolling bearing to prevent the rotating shaft 23 from moving in the axial direction relative to the rolling bearing, affecting the stability of the connection of the rotating shaft 23. The inner bearing of the inner ring of the rolling bearing is fixedly connected to the rotating shaft 23 by an interference fit, so that the rotating shaft 23 and the clothing processing drum assembly 2 connected to the rotating shaft 23 can rotate relative to the air duct shell assembly 1.

[0133] The cover body 131 has a placement recess 1311 on the side facing away from the first opening 1011, and the bearing seat 111 is arranged in the placement recess 1311. By arranging the placement recess 1311 on the cover body 131, not only can an installation space be provided for the bearing seat 111, but also the matching area between the cover body 131 and the bearing seat 111 can be increased, so that the arrangement of the bearing seat 111 is more stable. Furthermore, it can also avoid that the arrangement of the bearing seat 111 affects the overall size of the dryer in the axial direction of the clothing processing drum assembly 2, thereby realizing the miniaturization and lightweight of the dryer.

[0134] Among them, the shape of the bearing seat 111 is adapted to the shape of the placing recess 1311, so that the bearing seat 111 can be completely embedded in the placing recess 1311, and the inner wall of the placing recess 1311 is used to limit the bearing seat 111 to ensure the stability of the setting of the bearing seat 111. It can also avoid the placing recess 1311 occupying too much space to affect the space used for ventilation inside the ventilation cavity 101, and reduce the influence of the setting of the placing recess 1311 on the wind resistance in the ventilation cavity 101.

[0135] Among them, the placement recess 1311 is arranged on the side of the cover body 131 facing away from the first opening 1011, so that the bearing seat 111 can be arranged outside the ventilation cavity 101, so that the bearing 112 and the bearing seat 111 do not need to directly contact the airflow in the ventilation cavity 101, thereby avoiding the water vapor in the airflow to corrode the bearing 112 or the bearing seat 111 and affect the service life of the bearing 112 and the bearing seat 111.

[0136] The bottom wall of the recess 1311 is provided with a through hole 1312 to allow the bearing seat 111 or the rotating shaft 23 to pass through, so as to connect the bearing seat 111 arranged at the rear side of the air duct shell 13 and the clothing processing drum assembly 2 arranged at the front side of the air duct shell 13.

[0137] 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.

[0138] 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. An air duct housing assembly for a clothes dryer, characterized in that: include: A support plate, wherein the support plate is provided with a first opening and a second opening; An air duct shell, the air duct shell is arranged on one side of the support plate in the thickness direction and defines a ventilation cavity with the support plate, and the first through opening and the second through opening are both connected to the ventilation cavity; Wherein, the air duct shell includes a cover body and a volute which are formed separately.

2. The air duct housing assembly of the clothes dryer according to claim 1, characterized in that: The cover body is a metal part; and / or the volute is a plastic part.

3. The air duct housing assembly of the clothes dryer according to claim 1, characterized in that: The cover covers at least a portion of the first opening, and the volute covers the second opening.

4. The air duct housing assembly of the clothes dryer according to claim 3, characterized in that: The cover and the volute are arranged to overlap each other near each other to achieve a sealing fit.

5. The air duct housing assembly of the clothes dryer according to claim 4, characterized in that: The distance between the overlapping portion of the cover body and the volute and the center of the first opening is smaller than the radius of the first opening.

6. The air duct housing assembly of a clothes dryer according to claim 3, characterized in that: A volute tongue portion is formed on the volute, and a projection of the volute tongue portion on the support plate is located between the first opening and the second opening.

7. The air duct housing assembly of a clothes dryer according to claim 1, characterized in that: The cover body is sealed with the volute and both are connected to the support plate; And / or, the cover body and the support plate are integrally formed; or, the cover body and the support plate are separately formed and mechanically connected.

8. The air duct housing assembly of a clothes dryer according to claim 1, characterized in that: The cover body covers at least a portion of the first opening, and a support member is provided on the cover body for supporting the clothes processing drum assembly of the clothes dryer.

9. The air duct housing assembly of a clothes dryer according to claim 8, characterized in that: The support member comprises: A bearing seat, the bearing seat is arranged on the cover body; A bearing is disposed on the bearing seat and is used to cooperate with the rotating shaft on the clothing processing drum assembly to support the clothing processing drum assembly.

10. The air duct housing assembly of a clothes dryer according to claim 9, characterized in that: The cover body has a placement recess on one side facing away from the first opening, the bearing seat is arranged in the placement recess and the shape of the bearing seat is adapted to the shape of the placement recess, and a through hole is provided on the bottom wall of the placement recess to allow the bearing seat or the rotating shaft to pass through.

11. The air duct housing assembly of a clothes dryer according to claim 9, characterized in that: The bearing seat comprises a first seat body and a second seat body, wherein the first seat body and the second seat body are arranged opposite to each other and define an installation space; Wherein, the bearing is a rolling bearing and is arranged in the installation space, the first seat body and the second seat body are stopped at opposite sides of the outer ring of the rolling bearing, and a limiting step is provided on the rotating shaft, and the limiting step is stopped at one side of the inner ring of the rolling bearing.

12. A clothes dryer, characterized in that: include: A clothes processing drum assembly, wherein the clothes processing drum assembly defines a clothes processing chamber and has an air inlet; as well as, An air duct shell assembly, wherein the air duct shell assembly is an air duct shell assembly of a clothes dryer according to any one of claims 1 to 11, and the air inlet portion connects the ventilation cavity and the clothes processing cavity.

13. The clothes dryer according to claim 12, characterized in that: The clothes processing drum assembly has a first extension portion, which extends from the first opening into the ventilation cavity and defines a part of the clothes processing cavity, and the air inlet portion is arranged on the first extension portion.

14. The clothes dryer according to claim 12, characterized in that: A rotating shaft is provided on a wall of the laundry processing drum assembly opposite to the cover body, and the rotating shaft is rotatably supported on the cover body.

Images