WO2021253525A1

WO2021253525A1 - Air duct housing for use in clothes dryer and clothes dryer

Info

Publication number: WO2021253525A1
Application number: PCT/CN2020/100766
Authority: WO
Inventors: 谢邦明; 庾仁宗; 刘文法; 李学忠
Original assignee: 无锡飞翎电子有限公司
Priority date: 2020-06-15
Filing date: 2020-07-08
Publication date: 2021-12-23
Also published as: CN212505516U; CN113802347A

Abstract

An air duct housing (100) for use in a clothes dryer and the clothes dryer. The air duct housing (100) comprises: a lower air duct housing (20); and an upper air duct housing (10), the upper air duct housing (10) being connected with the lower air duct housing (20) to define a cavity (101) used for mounting a heat exchanger, where a limiting part (11) is provided on the lower surface of a sidewall of the upper air duct housing (10), a limiting fitting part (21) is provided on the upper surface of a sidewall of the lower air duct housing (20), and at least a portion of the limiting part (11) staggeredly fits at least a portion of the limiting fitting part (21).

Description

Air duct shell for clothes dryer and clothes dryer

Cross-references to related applications

This application requires Wuxi Little Swan Electric Co., Ltd. to file a Chinese patent application with the Chinese patent application number "202021106264.2" on June 15, 2020, and a Chinese patent application file with the Chinese patent application number "202021158931.1" filed on June 19, 2020. The priority of the Chinese patent application of "202010563957.2", the entire content of the Chinese patent application is hereby incorporated into this application as a reference.

Technical field

This application relates to the technical field of clothes dryers, and in particular to an air duct shell used for clothes dryers and clothes dryers.

Background technique

In the related art, the air duct assembly includes a clothes dryer base and an air duct cover. The air duct cover and the dryer base are connected to define an air duct cavity. The connection between the air duct cover and the dryer base is in the air duct assembly. Depression is easy to occur during the working process, which affects the sealing performance of the connection and the structural strength of the air duct assembly.

Summary of the invention

This application aims to solve at least one of the technical problems existing in the prior art. For this reason, an objective of the present application is to provide an air duct shell for a clothes dryer, the upper air duct shell and the lower air duct shell of the air duct shell are not easily dented, and the sealing effect of the connection is ensured.

Another object of the present application is to provide a clothes dryer with the above-mentioned air duct shell.

The air duct shell for a clothes dryer according to an embodiment of the present application includes: a lower air duct shell; an upper air duct shell, the upper air duct shell is connected to the lower air duct shell to define a cavity for installing a heat exchanger , Wherein the lower surface of the side wall of the upper air duct shell is provided with a limiting part, the upper surface of the side wall of the lower air duct shell is provided with a limiting matching part, and at least a part of the limiting part is matched with the limiting At least a part of the part is misaligned.

The air duct shell for the clothes dryer according to the embodiment of the present application adopts a split design, which is easier to disassemble and repair, and at least a part of the limit part and at least part of the limit matching part are misaligned to make the upper air duct shell The connection with the down duct shell is not easy to dent, which ensures the sealing effect of the connection.

In addition, the air duct shell for the clothes dryer according to the above-mentioned embodiments of the present application may also have the following additional technical features:

According to the air duct shell for a clothes dryer according to some embodiments of the present application, the lower surface of the limiting part is in sealing contact with the upper surface of the side wall of the down air duct shell; and/or, the limiting mating part The upper surface of the upper air duct is in sealing contact with the lower surface of the side wall of the upper air duct shell.

According to some embodiments of the present application, surfaces of the limiting portion and the limiting mating portion are in sealing contact with each other.

According to some embodiments of the present application, the limiting portion and/or the limiting matching portion provided on the same side wall of the air duct shell extend from the inlet of the chamber to the outlet of the chamber .

According to some embodiments of the present application, at least a part of the limiting part is located on a side of the limiting mating part close to the cavity, and at least another part of the limiting part is located at a side of the limiting matching part. The side away from the chamber.

According to some embodiments of the present application, one of the limiting portion and the limiting matching portion includes a first convex rib and a second convex rib, and the other of the limiting portion and the limiting matching portion It includes a third convex rib and a fourth convex rib, wherein the first convex rib and the second convex rib are alternately arranged from the inlet of the chamber to the outlet of the chamber, and the third convex rib and The fourth convex rib is alternately arranged from the inlet of the chamber to the outlet of the chamber, the first convex rib is misaligned with the third convex rib, and the second convex rib is aligned with the fourth convex rib. Convex rib misalignment fit.

According to some embodiments of the present application, the first convex rib is located on the side of the third convex rib close to the cavity, and the second convex rib is located on the fourth convex rib away from the cavity On the side.

According to some embodiments of the present application, the other of the limiting portion and the limiting matching portion further includes a fifth convex rib, and the fifth convex rib connects the adjacent third convex rib and The fourth convex rib, and the fifth convex rib is located between the adjacent first convex rib and the second convex rib.

According to some embodiments of the present application, the two opposite side surfaces of the fifth convex rib are respectively in sealing contact with the two opposite sides of the adjacent first convex rib and the second convex rib.

According to some embodiments of the present application, one of the limiting portion and the limiting matching portion is a limiting rib, and the other includes spaced apart distribution along the thickness direction of the side wall of the air duct shell Two matching convex ribs, and the limiting convex rib is inserted between the two matching convex ribs.

According to some embodiments of the present application, the two opposite side surfaces of the limiting ribs are in sealing contact with the two opposite side surfaces of the two mating ribs, respectively.

According to some embodiments of the present application, the horizontal cross-sectional area of the limiting ribs decreases along the insertion direction.

According to some embodiments of the present application, one of the upper air duct shell and the lower air duct shell is provided with a positioning groove, and the other is provided with a positioning post suitable for being inserted into the positioning groove.

According to some embodiments of the present application, at least one of the positioning posts is provided on the edge of the inlet of the chamber; and/or, at least one of the positioning posts is provided on the edge of the outlet of the chamber.

According to some embodiments of the present application, the air duct shell includes a first air duct shell and a second air duct shell that are sequentially connected in the airflow direction, and the inner cavity of the first air duct shell and the second air duct The inner cavity of the housing is in communication, wherein the air flow directions of the inner cavity of the first air duct housing and the inner cavity of the second air duct housing are different, and at least one of the positioning posts is provided in the first air duct housing The connection point with the second air duct shell.

According to some embodiments of the present application, the cross section of the positioning column is a circle or a square, and the cross section of the positioning groove is a circle or a square that matches the positioning column.

The clothes dryer according to the embodiment of the present application includes the air duct shell for the clothes dryer according to the embodiment of the present application.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Fig. 1 is a schematic structural diagram of an air duct shell according to an embodiment of the present application;

Figure 2 is an exploded view of the air duct shell according to the first embodiment of the present application;

Fig. 3 is a schematic diagram showing the enlarged structure of places A and B circled in Fig. 2;

Fig. 4 is a schematic diagram showing the enlarged structure of places C and D circled in Fig. 2;

Fig. 5 is a partial structural diagram of an air duct shell according to a second embodiment of the present application;

Fig. 6 is a cross-sectional view of Fig. 5 along the E-E line.

Reference signs:

Air duct shell 100; chamber 101; inlet 102; outlet 103;

The upper air duct shell 10; the inner cavity 101a of the upper air duct shell 10; the inlet 102a of the inner cavity 101a of the upper air duct shell 10; the outlet 103a of the inner cavity 101a of the upper air duct shell 10; the limiting portion 11; the first rib 12; Two convex ribs 13; matching convex ribs 14; positioning column 15;

Down duct housing 20; inner cavity 101b of down duct housing 20; inlet 102b of inner cavity 101b of down duct housing 20; outlet 103b of inner cavity 101b of down duct housing 20; limit matching portion 21; third rib 22; Fourth convex rib 23; fifth convex rib 24; limiting convex rib 25; positioning groove 26;

The first air duct shell 30; the second air duct shell 40.

detailed description

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation to the present application.

In the description of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "Radial", "Circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the pointed device or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In the description of this application, “first feature” and “second feature” may include one or more of these features, and “plurality” means two or more, and the first feature is in the second feature. "Above" or "below" can include the first and second features in direct contact, or the first and second features are not in direct contact but through another feature between them. The first feature is in the second feature. "Above", "above" and "above" include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than the second feature.

It should be noted that in the description of the present application, the azimuth limits such as "upper" and "lower" are based on the state where the air duct shell 10 is connected to the lower air duct shell 20. For example, the upper air duct shell 10 is located in the lower air duct shell. Above 20, "the lower surface of the side wall of the upper air duct housing 10" refers to the surface of the side wall of the upper air duct housing 10 that faces the lower air duct housing 20, and "the upper surface of the side wall of the lower air duct housing 20" refers to the lower air duct The surface of the side wall of the casing 20 facing the upper air duct casing 10.

The air duct housing 100 for a clothes dryer according to an embodiment of the present application will be described below with reference to the accompanying drawings.

1 and 2, the air duct housing 100 for a clothes dryer according to an embodiment of the present application may include: an upper air duct housing 10 and a lower air duct housing 20.

Specifically, the upper air duct shell 10 and the lower air duct shell 20 are connected to define a chamber 101 for installing a heat exchanger. The hot and humid air discharged from the drying chamber of the clothes dryer can enter the chamber 101 through the inlet 102 of the chamber 101 and exchange heat with the heat exchanger to obtain hot dry air. The hot dry air can pass from the outlet 103 of the chamber 101 Discharge and re-enter the drying chamber to dry the clothes. In the embodiment of the present application, the split design of the upper air duct shell 10 and the lower air duct shell 20 makes it easier to disassemble and maintain the air duct shell 100 and the heat exchanger in the air duct shell 100.

In addition, as shown in FIGS. 2-6, the lower surface of the side wall of the upper air duct shell 10 is provided with a limiting portion 11, and the upper surface of the side wall of the lower air duct shell 20 is provided with a limiting matching portion 21, and at least the limiting portion 11 is A part is misaligned and fitted with at least a part of the limit fitting portion 21. The misaligned parts can interact to make the side walls of the upper air duct shell 10 and the side walls of the lower air duct shell 20 limit each other, so as to prevent the side walls of the upper air duct shell 10 and the side walls of the lower air duct shell 20 from being sunken. That is, it prevents the side wall of the air duct shell 100 from being recessed and affects the sealing effect, and the effect of preventing air leakage is better.

For example, in the example shown in FIGS. 2-6, at least a part of the limiting portion 11 is located on the side of the limiting mating portion 21 close to the chamber 101, and at least a portion of the limiting portion 11 can prevent the down duct shell 20 The side wall of the upper air duct is recessed into the chamber 101; at least another part of the limiting portion 11 is located on the side of the limiting matching portion 21 away from the chamber 101, and the limiting matching portion 21 can prevent the side wall of the upper air duct housing 10 from facing the cavity 101 is recessed. Both the upper air duct shell 10 and the lower air duct shell 20 are not prone to dents, thereby further improving the anti-sag effect and ensuring the airtightness of the connection between the upper air duct shell 10 and the lower air duct shell 20.

It should be noted that two side walls are provided between the inlet 102 and the outlet 103 of the chamber 101 of the air duct shell 100, and at least one side wall is provided with a limiting portion 11 and a limiting matching portion 21 to achieve a limiting fit , Play a role in preventing depression. In addition, it should be noted that in the example shown in FIG. 2, the inner cavity of the upper air duct shell 10 and the inner cavity of the lower air duct shell 20 constitute the cavity 101 of the air duct shell 100, and the inner cavity 101a of the upper air duct shell 10 The inlet 102a and the inlet 102b of the inner cavity 101b of the lower air duct shell 20 constitute the inlet 102 of the cavity 101 of the air duct shell 100, the outlet 103a of the inner cavity 101a of the upper air duct shell 10 and the outlet 103b of the inner cavity 101b of the lower air duct shell 20 The outlet 103 of the cavity 101 constituting the air duct shell 100 is understandable to those skilled in the art.

The air duct shell 100 for a clothes dryer according to the embodiment of the present application adopts a split design, which makes disassembly and maintenance easier, and at least a part of the limiting portion 11 and at least a portion of the limiting mating portion 21 are misaligned and fitted, The connection between the upper air duct shell 10 and the lower air duct shell 20 is not easily dented, and the sealing effect of the connection is ensured.

In some embodiments, the lower surface of the limiting portion 11 is in sealing contact with the upper surface of the side wall of the down duct shell 20. In some embodiments, the upper surface of the limiting mating portion 21 is in sealing contact with the lower surface of the side wall of the upper air duct housing 10. In some embodiments, the surfaces of the limiting portion 11 and the limiting mating portion 21 are in sealing contact with each other. This can achieve a good seal at the junction of the upper air duct shell 10 and the lower air duct shell 20.

In addition, the lower surface including the limiting portion 11 is in sealed contact with the upper surface of the side wall of the lower air duct shell 20, and the upper surface of the limiting mating portion 21 is in sealed contact with the lower surface of the side wall of the upper air duct shell 10, and the limiting portion 11 In the embodiment in which the surfaces of the limiting mating portion 21 are in sealing contact with at least two of the three sealing structures, the sealing area is larger and the sealing effect is better. Of course, in some embodiments, the upper surface of the side wall of the lower air duct shell 20 may also be directly in sealing contact with the lower surface of the side wall of the upper air duct shell 10 to achieve sealing, which is also within the protection scope of the present application.

According to some embodiments of the present application, the limiting portion 11 provided on the same side wall of the air duct shell 100 can extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the extension range is larger, which is beneficial to Improve the limit anti-sag effect, on the other hand, it can increase the sealing range and sealing area, and improve the sealing effect. According to other embodiments of the present application, the position-limiting cooperating portion 21 extends from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the extension range is larger. Enlarge the sealing range and sealing area, and improve the sealing effect. Of course, as shown in FIG. 2, the limiting portion 11 and the limiting matching portion 21 may also extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, which has better anti-sagging and sealing effects.

The specific structures of the limiting portion 11 and the limiting matching portion 21 according to some embodiments of the present application will be described below in conjunction with the accompanying drawings.

As shown in Figures 2 and 3, the limiting portion 11 includes a first convex rib 12 and a second convex rib 13, and the limiting matching portion 21 includes a third convex rib 22 and a fourth convex rib 23, wherein the first convex rib 12 and the second rib 13 are alternately arranged from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the third rib 22 and the fourth rib 23 are alternately arranged from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101 It is provided that the first convex rib 12 is misaligned with the third convex rib 22, and the second convex rib 13 is misaligned with the fourth convex rib 23. Therefore, the first convex rib 12 cooperates with the third convex rib 22, and the second convex rib 13 cooperates with the fourth convex rib 23, so that the limits in different directions can be arranged alternately, so that the entire side wall is at the entrance 102 of the chamber 101. The different positions between the outlet 103 and the outlet 103 have a uniform limit effect, and the anti-sag effect is better.

In some specific embodiments, continuing to refer to Figures 2 and 3, the relative positions of the above air duct shell 10 when it is installed on the down duct shell 20 describe the first rib 12, the third rib 22, and the second protrusion. The specific structure and positional relationship between the rib 12 and the fourth rib 23: the first rib 12 is located on the side of the third rib 22 close to the cavity 101, so that the first rib 12 restricts the lower air duct shell 20 The side wall is recessed into the chamber 101; the second rib 13 is located on the side of the fourth rib 23 away from the chamber 101, so that the fourth rib 23 restricts the side wall of the upper air duct housing 10 from recessing into the chamber 101 , The limit structure is simple, easy to process and assemble.

In some embodiments of the present application, as shown in FIG. 2 and FIG. 3, the limiting and matching portion 21 further includes a fifth convex rib 24, and the fifth convex rib 24 connects the adjacent third convex rib 22 and the fourth convex rib. 23, and the fifth convex rib 24 is located between the adjacent first convex rib 12 and the second convex rib 13. The fifth rib 24 connects the third rib 22 and the fourth rib 23 into a whole, that is, the limiting and matching portion 21 is formed as a whole from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, which can realize More reliable limit and more comprehensive sealing.

For example, in some embodiments, the surfaces of the first rib 12 and the third rib 22 are in sealing contact with each other, the surfaces of the second rib 13 and the fourth rib 23 are in sealing contact with each other, and the fifth rib is in sealing contact with each other. The two opposite sides of the 24 may also be in sealing contact with the two opposite sides of the adjacent first rib 12 and the second rib 13, respectively. The formed sealing surface is from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the sealing range is larger.

Of course, in other embodiments, the structures of the limiting portion 11 and the limiting mating portion 21 can also be interchanged. Specifically, the limiting portion 11 includes a third rib 22 and a fourth rib 23, The portion 21 includes a first rib 12 and a second rib 13. In other words, one of the limiting portion 11 and the limiting mating portion 21 includes a first rib 12 and a second rib 13, and the limiting portion 11 and the limiting The other of the mating parts 21 includes a third rib 22 and a fourth rib 23. In a further embodiment, the limiting portion 11 includes a fifth convex rib 24, the fifth convex rib 24 connects the adjacent third convex rib 22 and the fourth convex rib 23, and the fifth convex rib 24 is located at the adjacent third convex rib. Between a convex rib 12 and a second convex rib 13. This is all within the protection scope of the present application, and according to the above description, the technical solution of the structure interchange of the limiting portion 11 and the limiting matching portion 21 is understandable, and will not be repeated here.

The specific structures of the limiting portion 11 and the limiting mating portion 21 according to other embodiments of the present application will be described below in conjunction with the accompanying drawings.

As shown in Figures 5 and 6, the limiting and matching portion 21 is a limiting rib 25, and the limiting portion 11 includes two matching ribs 14, which are along the thickness direction of the side wall of the air duct shell 100 Spaced apart and distributed, the limiting convex ribs 25 are inserted between the two matching convex ribs 14. The limiting rib 25 cooperates with a matching rib 14 close to the chamber 101 to prevent the side wall of the down duct shell 20 from being recessed into the chamber 101, and the limiting rib 25 cooperates with a matching protrusion 14 away from the chamber 101. The ribs 14 cooperate to prevent the side wall of the upper air duct housing 10 from being recessed into the cavity 101. The position-limiting convex rib 25 and the two matching convex ribs 14 realize a misalignment fit, and the structure of the position-limiting and matching portion 21 is simpler.

In some embodiments of the present application, as shown in FIG. 6, the two opposite side surfaces of the limiting rib 25 are in sealing contact with the two opposite side surfaces of the two mating ribs 14, respectively, so as to realize the upper air duct. The sealing of the connection between the shell 10 and the down duct shell 20 has a large sealing area and a good sealing effect, and the limiting rib 25 is in contact with the sides of the two matching ribs 14 at the same time, which can improve the limiting effect and the anti-sag effect.

In some embodiments, as shown in FIG. 6, the upper surface of the limiting rib 25 is in sealing contact with the lower surface of the side wall of the upper air duct shell 10, and the lower surface of the matching rib 14 is in contact with the side wall of the lower air duct shell 20. The upper surface is in sealed contact to further increase the sealing area and improve the sealing effect.

In some embodiments, as shown in FIG. 6, the limiting rib 25 and the two mating ribs 14 both extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the limiting and sealing range is larger. The entire side wall of the air duct shell 100 can achieve a good and uniform anti-sag and sealing effect.

According to some embodiments of the present application, as shown in FIG. 6, the horizontal cross-sectional area (or cross-sectional) of the limiting rib 25 decreases along the insertion direction. In other words, the horizontal cross-sectional area of the limiting rib 25 decreases upward to make It is easier for the limiting rib 25 to be inserted between the two matching ribs 14, which is beneficial to improve assembly efficiency, and the contact area between the limiting rib 25 and the matching rib 14 is larger, which is beneficial to improve the sealing effect. For example, in the example shown in FIG. 6, the vertical section (or longitudinal section) of the limiting rib 25 is formed as a trapezoid, and the transverse dimension of the upper end of the trapezoid is smaller than the transverse dimension of the lower end.

Of course, in other embodiments, the setting positions of the limiting ribs 25 and the matching ribs 14 can be interchanged. Specifically, the limiting portion 11 is the limiting rib 25, and the limiting matching portion 21 includes two matching ribs. The convex ribs 14 and the two matching convex ribs 14 are spaced apart along the thickness direction of the side wall of the air duct shell 100, and the limiting convex rib 25 is inserted between the two matching convex ribs 14, so that the structure of the limiting portion 11 is simpler. In other words, one of the limiting portion 11 and the limiting matching portion 21 is the limiting rib 25, and the other of the limiting portion 11 and the limiting matching portion 21 includes the thickness direction along the side wall of the air duct shell 100 There are two matching convex ribs 14 spaced apart, and the limiting convex rib 25 is inserted between the two matching convex ribs 14. In addition, according to FIG. 6 and the above description, the sealing contact, extension range, and horizontal cross-sectional area change of the limiting rib 25 and the mating rib 14 are easy to understand, and will not be repeated here.

According to some examples of the present application, the air duct housing 100 may be plastic. For example, the air duct shell 100 may be a foamed part such as foam plastic or foam rubber. Therefore, it is beneficial to improve the heat preservation effect of the air duct shell 100, at the same time, it is beneficial to reduce the weight of the air duct shell 100, and it is beneficial to improve the sealing effect of the connection between the upper air duct shell 10 and the lower air duct shell 20.

In this application, there is no special restriction on the connection mode of the upper air duct shell 10 and the lower air duct shell 20. For example, in some embodiments, the air duct shell 100 may further include a connecting piece, the connecting piece is connected to the bottom plate, and at least a part of the connecting piece is pressed on the upper air duct shell 10 to fix the air duct shell 100 on the bottom plate. At the same time, the upper air duct shell 10 and the lower air duct shell 20 are connected, and the connecting piece can also increase the pressing force between the upper air duct shell 10 and the lower air duct shell 20, thereby improving the connection between the upper air duct shell 10 and the lower air duct shell 20 The sealing effect of the place. And in this embodiment, the air duct shell 100 and the bottom plate of the clothes dryer are separate pieces, and the air duct shell 100 is fixed to the bottom plate, and the connection between the upper air duct shell 10 and the lower air duct shell 20 is realized by one component, and the connection structure is simple. , The assembly difficulty is small, the assembly efficiency is high, and the overall weight of the bottom plate of the clothes dryer is small, the process structure is simple, and the air duct shell 100 and the heat exchanger are more convenient to disassemble and maintain.

According to some examples of the present application, the upper air duct housing 10 and the lower air duct housing 20 can also be pre-assembled and positioned by a positioning structure, so that the restriction portion 11 and the restriction matching portion 21 can be matched more easily.

For example, in some embodiments, as shown in FIGS. 2 and 4, one of the upper air duct housing 10 and the lower air duct housing 20 is provided with a positioning groove 26, and the other of the upper air duct housing 10 and the lower air duct housing 20 is provided with a positioning groove 26. There is a positioning post 15 which can be inserted into the positioning slot 26, thereby achieving a positioning effect and a simple positioning structure.

In some embodiments, the positioning column 15 and the positioning groove 26 can be roughly positioned, and the limiting portion 11 and the limiting matching portion 21 can achieve fine positioning, that is, the matching gap between the positioning column 15 and the positioning slot 26 is greater than the limiting position. The matching clearance between the part 11 and the limit matching part 21, as a result, the fine positioning and coarse positioning cooperation make it easier to assemble the upper air duct shell 10 and the lower air duct shell 20, and the matching clearance between the limit part 11 and the limit matching part 21 can be Smaller, it helps to improve the sealing effect.

According to some examples of the present application, as shown in FIGS. 2 and 4, at least one positioning post 15 is provided on the edge of the inlet 102 of the chamber 101, so that the inlet 102a of the inner cavity 101a of the upper air duct shell 10 and the lower air duct shell 20 The position of the inlet 102b of the inner cavity 101b is more accurate, thereby improving the structural accuracy of the inlet 102 of the cavity 101. According to some examples of the present application, as shown in FIGS. 2 and 4, at least one positioning post 15 is provided on the edge of the outlet 103 of the chamber 101, so that the outlet 103a of the inner cavity 101a of the upper air duct shell 10 and the lower air duct shell 20 The alignment of the outlet 103b of the inner cavity 101b is more accurate, thereby improving the structural accuracy of the outlet 103 of the cavity 101. However, in the embodiment in which both the edge of the inlet 102 and the edge of the outlet 103 of the chamber 101 are provided with positioning posts 15, not only the structural accuracy of the inlet 102 and the outlet 103 of the chamber 101 is improved, but also the inlet 102 and the outlet are improved. The matching accuracy between the upper air duct shell 10 and the lower air duct shell 20 between 103 is beneficial to improve the anti-sag and sealing effect.

In some embodiments of the present application, as shown in FIGS. 1 and 2, the air duct shell 100 includes a first air duct shell 30 and a second air duct shell 40, and the first air duct shell 30 and the second air duct shell 40 In the air flow direction, the inner cavity of the first air duct shell 30 and the inner cavity of the second air duct shell 40 are connected, that is, the air flows through the inner cavity of the first air duct shell 30 and the second air duct shell 40 in sequence. Lumen. It is understandable that, as shown in FIG. 1, the first air duct shell 30 is composed of a part of the upper air duct shell 10 and a part of the lower air duct shell 20, and the second air duct shell 40 is composed of another part of the upper air duct shell 10 and the lower air duct. The other part of the shell 20 is formed.

Wherein, the air flow directions of the inner cavity of the first air duct shell 30 and the inner cavity of the second air duct shell 40 are different, so that the overall extension structure of the air duct shell 100 has a corner, that is, between the first air duct shell 30 and the second air duct shell 30 and the second air duct shell. A corner is formed at the junction of the air duct shell 40. At least one positioning post 15 is provided at the junction of the first air duct shell 30 and the second air duct shell 40 to be positioned from the corner of the air duct shell 100 to further improve the cooperation of the upper air duct shell 10 and the lower air duct shell 20 Accuracy. For example, in the example shown in FIGS. 1 and 2, the first air duct shell 30 and the second air duct shell 40 generally constitute an L-shaped structure, and the inner corners of the L-shaped are provided with positioning posts 15 and corresponding positioning grooves. 26 to locate.

The specific structure of the positioning column 15 and the positioning slot 26 is not particularly limited in this application. For example, the cross section of the positioning column 15 (that is, the cross section along the horizontal direction in FIG. 1) may be circular as shown in FIGS. 2 and 4, and the cross section of the positioning groove 26 may be a circle matching the positioning column 15. The shape structure makes it easier to insert the positioning column 15 and the positioning groove 26; for another example, the cross section of the positioning column 15 may be a square as shown in FIG. The positioning column 15 and the positioning groove 26 can not only achieve horizontal positioning, but also have an anti-rotation effect, and the positioning effect is better.

Of course, in the embodiment in which the air duct shell 100 is provided with multiple positioning posts 15 and corresponding multiple positioning grooves 26, the cross-sectional shapes of the multiple positioning posts 15 may be the same or different. For example, in the example shown in FIG. 2, the air duct housing 100 includes three positioning posts 15, two of which have a circular cross-section to facilitate insertion, and the other positioning post 15 has a square cross-section. , Improve the positioning effect.

The clothes dryer according to the embodiment of the present application includes the air duct shell 100 used for the clothes dryer according to the embodiment of the present application. Since the air duct shell 100 for the clothes dryer according to the embodiment of the present application has the above-mentioned beneficial technical effects, the air duct shell 100 of the clothes dryer according to the embodiment of the present application adopts a split design, which is more disassembled and repaired. It is easy, and through misalignment of at least a part of the limiting portion 11 and at least a portion of the limiting mating portion 21, the connection between the upper air duct housing 10 and the lower air duct housing 20 is not easily dented, and the sealing effect of the connection is ensured.

Other configurations and operations of the clothes dryer and the air duct shell 100 according to the embodiments of the present application are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.

In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific feature, structure, material, or characteristic described in combination with the embodiment or example is included in the application at least In one embodiment or example. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

An air duct shell for a clothes dryer, wherein the air duct shell comprises:

Downwind duct shell

An upper air duct shell, the upper air duct shell is connected to the lower air duct shell to define a cavity for installing a heat exchanger,

Wherein, the lower surface of the side wall of the upper air duct shell is provided with a limiting part, the upper surface of the side wall of the lower air duct shell is provided with a limiting matching part, and at least a part of the limiting part and the limiting matching part At least a part of the misalignment fit.
The air duct shell for a clothes dryer according to claim 1, wherein:

The lower surface of the limiting portion is in sealing contact with the upper surface of the side wall of the down duct shell; and/or,

The upper surface of the limiting and matching portion is in sealing contact with the lower surface of the side wall of the upper air duct shell.
The air duct housing for a clothes dryer according to claim 1 or 2, wherein the mutually opposite surfaces of the restricting portion and the restricting mating portion are in sealing contact with each other.
The air duct housing for a clothes dryer according to any one of claims 1 to 3, wherein the limit part and/or the limit provided on the same side wall of the air duct housing The matching portion extends from the inlet of the chamber to the outlet of the chamber.
The air duct shell for a clothes dryer according to any one of claims 1 to 4, wherein at least a part of the limiting portion is located on a side of the limiting matching portion close to the cavity, At least another part of the limiting portion is located on a side of the limiting matching portion away from the cavity.
The air duct shell for a clothes dryer according to any one of claims 1-5, wherein one of the limiting portion and the limiting matching portion includes a first convex rib and a second convex rib , The other of the limiting portion and the limiting matching portion includes a third convex rib and a fourth convex rib,

Wherein, the first convex rib and the second convex rib are alternately arranged from the inlet of the chamber to the outlet of the chamber, and the third convex rib and the fourth convex rib are separated from the chamber The inlet to the outlet of the chamber are alternately arranged, the first convex rib is misaligned with the third convex rib, and the second convex rib is misaligned with the fourth convex rib.
The air duct shell for a clothes dryer according to claim 6, wherein the first rib is located on a side of the third rib close to the cavity, and the second rib is located at the The side of the fourth rib away from the cavity.
The air duct shell for a clothes dryer according to claim 7, wherein the other of the limiting portion and the limiting matching portion further comprises a fifth rib, the fifth rib The adjacent third convex rib and the fourth convex rib are connected, and the fifth convex rib is located between the adjacent first convex rib and the second convex rib.
The air duct shell for a clothes dryer according to claim 8, wherein the two opposite sides of the fifth rib are connected to the adjacent first rib and the second protrusion, respectively. The two opposite sides of the rib are in sealing contact.
The air duct shell for a clothes dryer according to any one of claims 1 to 5, wherein:

One of the limiting portion and the limiting matching portion is a limiting rib, and the other includes two matching ribs spaced apart along the thickness direction of the side wall of the air duct shell, the The limiting convex rib is inserted between the two matching convex ribs.
The air duct shell for a clothes dryer according to claim 10, wherein the two opposite sides of the limiting rib are sealed with the two opposite sides of the two mating ribs, respectively get in touch with.
The air duct shell for a clothes dryer according to claim 10 or 11, wherein the horizontal cross-sectional area of the limiting rib decreases in the insertion direction.
The air duct housing for a clothes dryer according to any one of claims 1-12, wherein one of the upper air duct housing and the lower air duct housing is provided with a positioning groove, and the other is provided with A positioning post suitable for being inserted into the positioning groove.
The air duct shell for a clothes dryer according to claim 13, wherein:

At least one of the positioning posts is provided on the edge of the entrance of the chamber; and/or,

At least one of the positioning posts is provided on the edge of the outlet of the chamber.
The air duct housing for a clothes dryer according to claim 13 or 14, wherein the air duct housing includes a first air duct housing and a second air duct housing that are sequentially connected in the airflow direction, and the first air duct housing The inner cavity of the air duct shell is communicated with the inner cavity of the second air duct shell,

Wherein, the air flow directions of the inner cavity of the first air duct shell and the inner cavity of the second air duct shell are different, and at least one of the positioning posts is provided on the first air duct shell and the second air duct shell. The junction of the shell.
The air duct shell for a clothes dryer according to any one of claims 13-15, wherein the cross-section of the positioning column is round or square, and the cross-section of the positioning groove is the same as that of the positioning Round or square to match the column.
A clothes dryer, comprising the air duct shell for the clothes dryer according to any one of claims 1-16.