CN113802347A - Air duct shell for clothes dryer and clothes dryer - Google Patents

Abstract

The invention discloses an air duct shell for a clothes dryer and the clothes dryer, wherein the air duct shell comprises: a lower duct shell; the upper air duct shell is connected with the lower air duct shell to limit a cavity for installing a heat exchanger, wherein a limiting part is arranged on the lower surface of the side wall of the upper air duct shell, a limiting matching part is arranged on the upper surface of the side wall of the lower air duct shell, and at least one part of the limiting part is in dislocation matching with at least one part of the limiting matching part. The air duct shell for the clothes dryer provided by the embodiment of the invention adopts a split type design, so that the air duct shell is easier to disassemble, assemble and maintain, and the joint of the upper air duct shell and the lower air duct shell is not easy to dent through the dislocation matching of at least one part of the limiting part and at least one part of the limiting matching part, so that the sealing effect of the connection is ensured.

Description

Air duct shell for clothes dryer and clothes dryer

Cross Reference to Related Applications

This application claims priority to the patent application having application number 202021106264.2, filed on even 6/15/2020, entitled "duct housing for clothes dryer and clothes dryer".

Technical Field

The invention relates to the technical field of clothes dryers, in particular to an air duct shell for a clothes dryer and the clothes dryer.

Background

In the related art, the air duct assembly comprises a clothes dryer base and an air duct cover plate, the air duct cover plate is connected with the clothes dryer base to limit an air duct cavity, and the joint of the air duct cover plate and the clothes dryer base is easy to dent in the working process of the air duct assembly, so that the connection tightness and the structural strength of the air duct assembly are affected.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide an air duct casing for a clothes dryer, in which an upper air duct casing and a lower air duct casing of the air duct casing are not easily recessed, ensuring a sealing effect of the connection.

Another object of the present invention is to provide a clothes dryer having the above air duct housing.

The air duct case for the dryer according to an embodiment of the present invention includes: a lower duct shell; the upper air duct shell is connected with the lower air duct shell to limit a cavity for installing a heat exchanger, wherein a limiting part is arranged on the lower surface of the side wall of the upper air duct shell, a limiting matching part is arranged on the upper surface of the side wall of the lower air duct shell, and at least one part of the limiting part is in dislocation matching with at least one part of the limiting matching part.

The air duct shell for the clothes dryer provided by the embodiment of the invention adopts a split type design, so that the air duct shell is easier to disassemble, assemble and maintain, and the joint of the upper air duct shell and the lower air duct shell is not easy to dent through the dislocation matching of at least one part of the limiting part and at least one part of the limiting matching part, so that the sealing effect of the connection is ensured.

In addition, the air duct housing for the clothes dryer according to the above embodiment of the present invention may further have the following additional technical features:

according to the air duct shell for the clothes dryer of some embodiments of the present invention, the lower surface of the limiting part is in sealing contact with the upper surface of the side wall of the lower air duct shell; and/or the upper surface of the limiting matching part is in sealing contact with the lower surface of the side wall of the upper air duct shell.

According to some embodiments of the invention, the stopper portion and the stopper fitting portion are in sealing contact with each other at mutually opposite faces.

According to some embodiments of the invention, the limiting part and/or the limiting matching part arranged on the same side wall of the air duct shell extend from the inlet of the cavity to the outlet of the cavity.

According to some embodiments of the invention, at least a portion of the position-limiting part is located on a side of the position-limiting fitting part close to the chamber, and at least another portion of the position-limiting part is located on a side of the position-limiting fitting part far from the chamber.

According to some embodiments of the invention, one of the limiting part and the limiting matching part comprises a first rib and a second rib, and the other of the limiting part and the limiting matching part comprises a third rib and a fourth rib, wherein the first rib and the second rib are arranged alternately from the inlet of the chamber to the outlet of the chamber, the third rib and the fourth rib are arranged alternately from the inlet of the chamber to the outlet of the chamber, the first rib is in staggered fit with the third rib, and the second rib is in staggered fit with the fourth rib.

According to some embodiments of the invention, the first rib is located on a side of the third rib adjacent to the chamber and the second rib is located on a side of the fourth rib remote from the chamber.

According to some embodiments of the invention, the other of the limit stop portion and the limit fitting portion further includes a fifth bead connecting the adjacent third bead and the fourth bead, and the fifth bead is located between the adjacent first bead and the adjacent second bead.

According to some embodiments of the invention, two sides of the fifth bead facing away from each other are in sealing contact with two sides of the first bead and the second bead facing each other, respectively, which are adjacent to each other.

According to some embodiments of the invention, one of the limiting part and the limiting fitting part is a limiting convex rib, and the other one of the limiting part and the limiting fitting part comprises two fitting convex ribs distributed at intervals along the thickness direction of the side wall of the air duct shell, and the limiting convex rib is inserted between the two fitting convex ribs.

According to some embodiments of the invention, two opposite sides of the limiting rib are in sealing contact with two opposite sides of the two matching ribs respectively.

According to some embodiments of the invention, the horizontal cross-sectional area of the retaining bead decreases in the insertion direction.

According to some embodiments of the invention, one of the upper duct casing and the lower duct casing is provided with a positioning groove, and the other is provided with a positioning column adapted to be inserted into the positioning groove.

According to some embodiments of the invention, at least one of the positioning pillars is provided at a rim of the inlet of the chamber; and/or at least one positioning column is arranged at the edge of the outlet of the chamber.

According to some embodiments of the present invention, the air duct shell includes a first air duct shell and a second air duct shell which are sequentially connected in an airflow direction, an inner cavity of the first air duct shell is communicated with an inner cavity of the second air duct shell, airflow 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 positioning column is disposed at a connection position of the first air duct shell and the second air duct shell.

According to some embodiments of the invention, the cross section of the positioning column is circular or square, and the cross section of the positioning groove is circular or square matched with the positioning column.

The clothes dryer according to the embodiment of the present invention includes the duct case for the clothes dryer according to the embodiment of the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of an air duct shell according to an embodiment of the present invention;

FIG. 2 is an exploded view of a duct casing according to a first embodiment of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at circle A and circle B;

FIG. 4 is an enlarged schematic view of FIG. 2 at circle C and circle D;

FIG. 5 is a schematic view of a portion of a duct casing according to a second embodiment of the present invention;

fig. 6 is a sectional view taken along the line E-E in fig. 5.

Reference numerals:

an air duct case 100; a chamber 101; an inlet 102; an outlet 103;

an upper duct case 10; the inner cavity 101a of the upper duct case 10; an inlet 102a of the inner chamber 101a of the upper duct case 10; an outlet 103a of the inner cavity 101a of the upper duct case 10; a stopper 11; a first rib 12; a second rib 13; the fitting ribs 14; a positioning post 15;

a lower duct shell 20; an inner cavity 101b of the lower duct case 20; an inlet 102b of the inner cavity 101b of the lower duct shell 20; an outlet 103b of the inner cavity 101b of the lower duct shell 20; a limit fitting portion 21; a third rib 22; a fourth rib 23; a fifth bead 24; a limit convex rib 25; a positioning groove 26;

a first duct case 30; and a second duct case 40.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being not in direct contact but being in contact with another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

In the description of the present invention, the orientation definitions of "upper" and "lower" are based on the state where the upper duct casing 10 is connected to the lower duct casing 20, for example, the upper duct casing 10 is located above the lower duct casing 20, the "lower surface of the sidewall of the upper duct casing 10" refers to the surface of the sidewall of the upper duct casing 10 facing the lower duct casing 20, and the "upper surface of the sidewall of the lower duct casing 20" refers to the surface of the sidewall of the lower duct casing 20 facing the upper duct casing 10.

The duct case 100 for the dryer according to the embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a duct case 100 for a dryer according to an embodiment of the present invention may include: an upper duct case 10 and a lower duct case 20.

Specifically, the upper duct case 10 is connected to the lower duct case 20 to define a chamber 101 for mounting a heat exchanger. The hot and humid air exhausted from the drying chamber of the dryer can enter the chamber 101 through the inlet 102 of the chamber 101 and exchange heat with the heat exchanger to obtain hot and dry air, and the hot and dry air can be exhausted from the outlet 103 of the chamber 101 and enter the drying chamber again to dry the clothes. In the embodiment of the present invention, the split design of the upper duct shell 10 and the lower duct shell 20 makes the duct shell 100 and the heat exchanger in the duct shell 100 easier to disassemble, assemble and maintain.

In addition, as shown in fig. 2 to 6, the lower surface of the sidewall of the upper duct case 10 is provided with a limit portion 11, the upper surface of the sidewall of the lower duct case 20 is provided with a limit engagement portion 21, and at least a part of the limit portion 11 and at least a part of the limit engagement portion 21 are engaged with each other in a staggered manner. The dislocation complex part can interact to the lateral wall that makes upper air duct shell 10 and lower air duct shell 20 carries on spacingly each other, thereby prevents that the lateral wall of upper air duct shell 10 and lower air duct shell 20's lateral wall from taking place sunkenly, prevents promptly that the lateral wall of air duct shell 100 from taking place sunkenly and influencing sealed effect, and the effect of preventing gas leakage is better.

For example, in the example shown in fig. 2 to 6, at least a part of the limiting part 11 is located on a side of the limiting fitting part 21 close to the cavity 101, and at least a part of the limiting part 11 can prevent the side wall of the lower duct casing 20 from sinking into the cavity 101; at least another part of the limiting part 11 is located on one side of the limiting matching part 21 far away from the cavity 101, and the limiting matching part 21 can prevent the side wall of the upper air duct shell 10 from sinking into the cavity 101. The upper duct shell 10 and the lower duct shell 20 are not easy to sag, so that the anti-sag effect is further improved, and the connection tightness between the upper duct shell 10 and the lower duct shell 20 is ensured.

It should be noted that two side walls are arranged 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 the limiting portion 11 and the limiting matching portion 21, so as to realize limiting matching and achieve the anti-sinking effect. It should be noted that, in the example shown in fig. 2, the inner cavity of the upper duct case 10 and the inner cavity of the lower duct case 20 form a chamber 101 of the duct case 100, the inlet 102a of the inner cavity 101a of the upper duct case 10 and the inlet 102b of the inner cavity 101b of the lower duct case 20 form an inlet 102 of the chamber 101 of the duct case 100, and the outlet 103a of the inner cavity 101a of the upper duct case 10 and the outlet 103b of the inner cavity 101b of the lower duct case 20 form an outlet 103 of the chamber 101 of the duct case 100, which is understood by those skilled in the art.

According to the air duct shell 100 for the clothes dryer provided by the embodiment of the invention, a split type design is adopted, the assembly, disassembly and maintenance are easier, and the connection part of the upper air duct shell 10 and the lower air duct shell 20 is not easy to dent through the dislocation matching of at least one part of the limiting part 11 and at least one part of the limiting matching part 21, so that the connection sealing effect is ensured.

In some embodiments, the lower surface of the stopper portion 11 is in sealing contact with the upper surface of the sidewall of the lower duct case 20. In some embodiments, the upper surface of the limit fitting 21 is in sealing contact with the lower surface of the side wall of the upper duct casing 10. In some embodiments, the opposing faces of the position limiting portion 11 and the position limiting fitting portion 21 are in sealing contact. This can achieve a good sealing at the junction of the upper duct case 10 and the lower duct case 20.

In addition, in the embodiment including at least two of the three sealing structures, namely, the lower surface of the limiting part 11 is in sealing contact with the upper surface of the side wall of the lower air duct shell 20, the upper surface of the limiting matching part 21 is in sealing contact with the lower surface of the side wall of the upper air duct shell 10, and the mutually opposite surfaces of the limiting part 11 and the limiting matching part 21 are in sealing contact, the sealing area is larger, and the sealing effect is better. Of course, in some embodiments, the upper surface of the sidewall of the lower duct shell 20 may also be in direct sealing contact with the lower surface of the sidewall of the upper duct shell 10 to achieve sealing, which is also within the scope of the present invention.

According to some embodiments of the present invention, the limiting portion 11 disposed on the same sidewall of the air duct shell 100 may extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the extending range is wider, which is beneficial to improving the limiting and anti-sinking effect, and on the other hand, may increase the sealing range and the sealing area, and improve the sealing effect. According to other embodiments of the invention, the limit matching part 21 extends from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, and the extension range is larger, so that on one hand, the limit anti-sinking effect is improved, and on the other hand, the sealing range and the sealing area can be enlarged, and the sealing effect is improved. Of course, as shown in fig. 2, both the position-limiting part 11 and the position-limiting matching part 21 can also extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, so that the anti-sinking and sealing effects are better.

Specific structures of the position restricting portion 11 and the position restricting fitting portion 21 according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 2 and 3, the limiting portion 11 includes a first rib 12 and a second rib 13, and the limiting matching portion 21 includes a third rib 22 and a fourth rib 23, wherein the first rib 12 and the second rib 13 are alternately disposed from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, the third rib 22 and the fourth rib 23 are alternately disposed from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, the first rib 12 and the third rib 22 are in dislocation matching, and the second rib 13 and the fourth rib 23 are in dislocation matching. From this, first protruding muscle 12 and the cooperation of third protruding muscle 22, second protruding muscle 13 and the cooperation of fourth protruding muscle 23 can make the spacing alternate setting of equidirectional not to make the spacing effect of different positions of whole lateral wall between the import 102 of cavity 101 and export 103 even, prevent that the sunken effect is better.

In some embodiments, with continued reference to fig. 2 and 3, the specific structural and positional relationships between the first ribs 12 and the third ribs 22, and between the second ribs 12 and the fourth ribs 23 are described in terms of the relative positions of the upper duct casing 10 when mounted to the lower duct casing 20: the first rib 12 is positioned on one side of the third rib 22 close to the cavity 101, so that the first rib 12 limits the side wall of the lower air duct shell 20 from sinking into the cavity 101; the second convex rib 13 is positioned on one side of the fourth convex rib 23 far away from the cavity 101, so that the fourth convex rib 23 limits the side wall of the upper air duct shell 10 to be sunken in the cavity 101, and the limiting structure is simple and easy to process and assemble.

In some embodiments of the present invention, as shown in fig. 2 and 3, the position-limiting engagement portion 21 further includes a fifth rib 24, the fifth rib 24 connects the adjacent third rib 22 and fourth rib 23, and the fifth rib 24 is located between the adjacent first rib 12 and second rib 13. The fifth rib 24 connects the third rib 22 and the fourth rib 23 into a whole, that is, the limit fitting part 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 mutually opposite surfaces of the first rib 12 and the third rib 22 are in sealing contact, the mutually opposite surfaces of the second rib 13 and the fourth rib 23 are in sealing contact, and two mutually opposite side surfaces of the fifth rib 24 may also be in sealing contact with two mutually opposite side surfaces of the adjacent first rib 12 and the second rib 13, respectively. The sealing surface is formed 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 part 11 and the limiting fitting part 21 may be interchanged, specifically, the limiting part 11 includes the third rib 22 and the fourth rib 23, the limiting fitting part 21 includes the first rib 12 and the second rib 13, in other words, one of the limiting part 11 and the limiting fitting part 21 includes the first rib 12 and the second rib 13, and the other of the limiting part 11 and the limiting fitting part 21 includes the third rib 22 and the fourth rib 23. In a further embodiment, the limiting portion 11 comprises a fifth rib 24, the fifth rib 24 connects the adjacent third rib 22 and fourth rib 23, and the fifth rib 24 is located between the adjacent first rib 12 and second rib 13. This is within the scope of the present invention, and the technical solution of the structure interchange of the position-limiting portion 11 and the position-limiting engagement portion 21 can be understood from the above description, and will not be described herein.

Specific structures of the position limiting portion 11 and the position limiting engagement portion 21 according to other embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 5 and 6, the limiting fitting portion 21 is a limiting rib 25, the limiting portion 11 includes two fitting ribs 14, the two fitting ribs 14 are spaced apart from each other along the thickness direction of the side wall of the air duct casing 100, and the limiting rib 25 is inserted between the two fitting ribs 14. The limiting convex rib 25 is matched with one matching convex rib 14 close to the cavity 101 to prevent the side wall of the lower air duct shell 20 from sinking into the cavity 101, and the limiting convex rib 25 is matched with one matching convex rib 14 far away from the cavity 101 to prevent the side wall of the upper air duct shell 10 from sinking into the cavity 101. The spacing convex rib 25 and the two matching convex ribs 14 realize dislocation matching, and the structure of the spacing matching part 21 is simpler.

In some embodiments of the present invention, as shown in fig. 6, two opposite side surfaces of the limiting convex rib 25 are in sealing contact with two opposite side surfaces of the two matching convex ribs 14, respectively, so as to seal the joint between the upper duct shell 10 and the lower duct shell 20, the sealing area is large, the sealing effect is good, and the limiting convex rib 25 is in contact and matching with the side surfaces of the two matching convex ribs 14, so that the limiting effect can be improved, and the anti-sinking effect can be improved.

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 sidewall of the upper duct shell 10, and the lower surface of the matching rib 14 is in sealing contact with the upper surface of the sidewall of the lower duct shell 20, so as 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 fitting ribs 14 both extend from the inlet 102 of the chamber 101 to the outlet 103 of the chamber 101, so that the limiting and sealing range is wider, and a good and uniform anti-sinking and sealing effect can be achieved on the whole side wall of the air duct shell 100.

According to some embodiments of the present invention, as shown in fig. 6, the horizontal cross-sectional area (or called cross-sectional area) of the limiting rib 25 decreases progressively along the insertion direction, in other words, the horizontal cross-sectional area of the limiting rib 25 decreases progressively upward, so that the limiting rib 25 is inserted between two matching ribs 14 more easily, which is beneficial to improving the assembly efficiency, and the contact area between the limiting rib 25 and the matching rib 14 is larger, which is beneficial to improving the sealing effect. For example, in the example shown in fig. 6, the vertical section (or longitudinal section) of the stopper rib 25 is formed in a trapezoidal shape, and the lateral dimension of the upper end of the trapezoidal shape is smaller than the lateral dimension of the lower end.

Of course, in other embodiments, the positions of the limiting ribs 25 and the matching ribs 14 may be interchanged, specifically, the limiting portion 11 is the limiting rib 25, the limiting matching portion 21 includes two matching ribs 14, the two matching ribs 14 are spaced apart along the thickness direction of the side wall of the air duct casing 100, and the limiting rib 25 is inserted between the two matching 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 fitting portion 21 is the limiting convex rib 25, and the other of the limiting portion 11 and the limiting fitting portion 21 includes two fitting convex ribs 14 distributed at intervals 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 fitting convex ribs 14. In addition, according to fig. 6 and the above description, the sealing contact, the extension range, and the horizontal sectional area variation of the stopper rib 25 and the fitting rib 14 are easily understood and will not be described in detail.

According to some examples of the invention, the duct shell 100 may be plastic. For example, the duct case 100 may be a foamed member such as a foamed plastic, a foamed rubber, or the like. Therefore, the heat preservation effect of the air duct shell 100 is improved, the weight of the air duct shell 100 is reduced, and the sealing effect of the joint of the upper air duct shell 10 and the lower air duct shell 20 is improved.

The connection manner of the upper duct case 10 and the lower duct case 20 is not particularly limited in the present invention. For example, in some embodiments, the air duct casing 100 may further include a connecting member, the connecting member is connected to the bottom plate, and at least a portion of the connecting member is pressed above the upper air duct casing 10 to fix the air duct casing 100 to the bottom plate, and the connection between the upper air duct casing 10 and the lower air duct casing 20 is achieved, and the connecting member may further increase a pressing force between the upper air duct casing 10 and the lower air duct casing 20, so as to improve a sealing effect at a connection portion of the upper air duct casing 10 and the lower air duct casing 20. In the embodiment, the air duct shell 100 and the bottom plate of the clothes dryer are separate parts, the air duct shell 100 is fixed on the bottom plate, and the connection between the upper air duct shell 10 and the lower air duct shell 20 is realized through one part, so that the connection structure is simple, the assembly difficulty is small, the assembly efficiency is high, the overall weight of the bottom plate of the clothes dryer is small, the process structure is simple, and the air duct shell 100, the heat exchanger and the like are more convenient to disassemble and maintain.

According to some examples of the present invention, the upper duct case 10 and the lower duct case 20 may be pre-positioned by a positioning structure, so that the fitting of the position-limiting part 11 and the position-limiting fitting part 21 is easier.

For example, in some embodiments, as shown in fig. 2 and 4, one of the upper duct casing 10 and the lower duct casing 20 is provided with a positioning groove 26, and the other of the upper duct casing 10 and the lower duct casing 20 is provided with a positioning post 15, and the positioning post 15 can be inserted into the positioning groove 26, so that the positioning effect is achieved, and the positioning structure is simple.

In some embodiments, the positioning column 15 and the positioning groove 26 can perform coarse positioning, and the fine positioning can be realized by the limiting portion 11 and the limiting matching portion 21, that is, the matching gap between the positioning column 15 and the positioning groove 26 is larger than the matching gap between the limiting portion 11 and the limiting matching portion 21, so that the upper air duct shell 10 and the lower air duct shell 20 can be assembled more easily by the fine positioning and the coarse positioning matching, and the matching gap between the limiting portion 11 and the limiting matching portion 21 can be smaller, which is beneficial to improving the sealing effect.

According to some examples of the present invention, as shown in fig. 2 and 4, at least one positioning post 15 is disposed at the edge of the inlet 102 of the chamber 101, so that the inlet 102a of the inner cavity 101a of the upper duct casing 10 and the inlet 102b of the inner cavity 101b of the lower duct casing 20 are aligned more accurately, thereby improving the structural accuracy of the inlet 102 of the chamber 101. According to some examples of the present invention, as shown in fig. 2 and 4, at least one positioning post 15 is disposed at the edge of the outlet 103 of the chamber 101, so that the outlet 103a of the inner cavity 101a of the upper duct casing 10 and the outlet 103b of the inner cavity 101b of the lower duct casing 20 are aligned more accurately, thereby improving the structural accuracy of the outlet 103 of the chamber 101. In the embodiment that the positioning columns 15 are arranged at the edge of the inlet 102 and the edge of the outlet 103 of the chamber 101, the structural accuracy of the inlet 102 and the outlet 103 of the chamber 101 is improved, and the matching accuracy of the upper air duct shell 10 and the lower air duct shell 20 between the inlet 102 and the outlet 103 is improved, so that the anti-sinking and sealing effects are improved.

In some embodiments of the present invention, as shown in fig. 1 and 2, the air duct shell 100 includes a first air duct shell 30 and a second air duct shell 40, the first air duct shell 30 and the second air duct shell 40 are sequentially connected in an airflow direction, and an inner cavity of the first air duct shell 30 is communicated with an inner cavity of the second air duct shell 40, that is, the airflow sequentially flows through the inner cavity of the first air duct shell 30 and the inner cavity of the second air duct shell 40. It is understood that, as shown in fig. 1, the first air duct case 30 is formed of a portion of the upper air duct case 10 and a portion of the lower air duct case 20, and the second air duct case 40 is formed of another portion of the upper air duct case 10 and another portion of the lower air duct case 20.

The airflow direction of the inner cavity of the first air duct shell 30 is different from the airflow direction of the inner cavity of the second air duct shell 40, so that the overall extension structure of the air duct shell 100 has a corner, that is, a corner is formed at the joint of the first air duct shell 30 and the second air duct shell 40. At least one positioning column 15 is disposed at a joint of the first air duct casing 30 and the second air duct casing 40 to perform positioning from a corner of the air duct casing 100, so as to further improve the matching accuracy of the upper air duct casing 10 and the lower air duct casing 20. For example, in the example shown in fig. 1 and 2, the first air duct shell 30 and the second air duct shell 40 generally form an L-shaped structure, and the inner corners of the L-shaped structure are provided with positioning posts 15 and corresponding positioning slots 26 for positioning.

The present invention is not limited to the specific structure of positioning post 15 and positioning groove 26. For example, the cross section (i.e., the section along the horizontal direction in fig. 1) of positioning column 15 may be circular as shown in fig. 2 and 4, and the cross section of positioning slot 26 is circular to match positioning column 15, and the circular structure makes it easier to plug positioning column 15 and positioning slot 26; for another example, the cross section of the positioning column 15 may be square as shown in fig. 2, the cross section of the positioning groove 26 is square matched with the positioning column 15, and the square shape enables the positioning column 15 and the positioning groove 26 to realize positioning in the horizontal direction, and also has an anti-rotation effect, and the positioning effect is better.

Of course, in the embodiment where the air duct casing 100 is provided with a plurality of positioning pillars 15 and a corresponding plurality of positioning grooves 26, the cross-sectional shapes of the positioning pillars 15 may be the same or different. For example, in the example shown in fig. 2, the air duct casing 100 includes three positioning pillars 15, wherein the cross section of two positioning pillars 15 is circular, so that the insertion is easy, and the cross section of the other positioning pillar 15 is square, so that the positioning effect is improved.

The dryer according to an embodiment of the present invention includes a duct case 100 for the dryer according to an embodiment of the present invention. Because the air duct shell 100 for the clothes dryer according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the clothes dryer according to the embodiment of the present invention has the air duct shell 100 adopting a split design, which is easier to disassemble, assemble and maintain, and the connection between the upper air duct shell 10 and the lower air duct shell 20 is not easy to be recessed due to the dislocation fit of at least a part of the limiting portion 11 and at least a part of the limiting fitting portion 21, thereby ensuring the sealing effect of the connection.

Other constructions and operations of the dryer and the duct housing 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (17)

1. An air duct housing for a clothes dryer, comprising:

a lower duct shell;

an upper duct shell coupled to the lower duct shell to define a chamber for mounting a heat exchanger,

wherein, the lower surface of the lateral wall of upper air duct shell is equipped with spacing portion, the upper surface of the lateral wall of lower air duct shell is equipped with spacing cooperation portion, at least partly of spacing portion with at least partly dislocation cooperation of spacing cooperation portion.

2. The duct housing for a clothes dryer of claim 1, wherein,

the lower surface of the limiting part is in sealing contact with the upper surface of the side wall of the lower air duct shell; and/or the presence of a gas in the gas,

the upper surface of the limiting matching part is in sealing contact with the lower surface of the side wall of the upper air duct shell.

3. The duct casing for the clothes dryer according to claim 1, wherein the stopper portion and the stopper fitting portion are in sealing contact with faces thereof opposite to each other.

4. The air duct shell for the clothes dryer according to any one of claims 1 to 3, wherein the limit part and/or the limit matching part arranged on the same side wall of the air duct shell extend from the inlet of the chamber to the outlet of the chamber.

5. The duct casing for the clothes dryer according to claim 1, wherein at least one portion of the position-limiting portion is located on a side of the position-limiting engagement portion close to the chamber, and at least another portion of the position-limiting portion is located on a side of the position-limiting engagement portion away from the chamber.

6. The duct casing for the clothes dryer of claim 1, wherein one of the stopper portion and the stopper fitting portion includes a first rib and a second rib, and the other of the stopper portion and the stopper fitting portion includes a third rib and a fourth rib,

wherein, first protruding muscle with the second protruding muscle by the import of cavity extremely the export of cavity is alternate to be set up, the third protruding muscle with the fourth protruding muscle by the import of cavity extremely the export of cavity is alternate to be set up, first protruding muscle with the cooperation of third protruding muscle dislocation, the second protruding muscle with the cooperation of fourth protruding muscle dislocation.

7. The duct casing for a clothes dryer of claim 6, wherein the first rib is located on a side of the third rib adjacent to the chamber, and the second rib is located on a side of the fourth rib remote from the chamber.

8. The air duct casing for the clothes dryer according to claim 7, wherein the other one of the limiting portion and the limiting fitting portion further comprises a fifth rib, the fifth rib connects the adjacent third rib and the fourth rib, and the fifth rib is located between the adjacent first rib and the adjacent second rib.

9. The air duct casing for the clothes dryer according to claim 8, wherein two sides of the fifth ribs facing away from each other are in sealing contact with two sides of the first ribs and the second ribs facing each other, respectively, which are adjacent to each other.

10. The duct housing for a clothes dryer of claim 1, wherein,

one of them is spacing protruding muscle in spacing portion with spacing cooperation portion, and another includes along two cooperation protruding muscle of the thickness direction spaced apart distribution of the lateral wall of wind channel shell, spacing protruding muscle inserts two between the cooperation protruding muscle.

11. The duct casing for the clothes dryer according to claim 10, wherein two sides of the stopper rib facing away from each other are in sealing contact with two sides of the two fitting ribs facing each other, respectively.

12. The duct casing for the clothes dryer of claim 10, wherein the horizontal cross-sectional area of the stopper rib decreases in the insertion direction.

13. The air duct casing for the clothes dryer according to claim 1, wherein one of the upper air duct casing and the lower air duct casing is provided with a positioning groove, and the other one is provided with a positioning post adapted to be inserted into the positioning groove.

14. The air duct housing for a clothes dryer of claim 13, wherein,

the positioning column is arranged at the edge of the inlet of the chamber; and/or the presence of a gas in the gas,

at least one positioning column is arranged at the edge of the outlet of the chamber.

15. The air duct shell for the clothes dryer according to claim 13, wherein the air duct shell comprises a first air duct shell and a second air duct shell which are connected in sequence in an airflow direction, an inner cavity of the first air duct shell is communicated with an inner cavity of the second air duct shell,

the air flow direction of the inner cavity of the first air duct shell is different from the air flow direction of the inner cavity of the second air duct shell, and at least one positioning column is arranged at the joint of the first air duct shell and the second air duct shell.

16. The air duct casing for the clothes dryer according to claim 13, wherein the cross section of the positioning column is circular or square, and the cross section of the positioning groove is circular or square matched with the positioning column.

17. Laundry dryer, characterized by comprising a duct casing for a laundry dryer according to any one of claims 1-16.

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