CN217235791U

CN217235791U - Air duct shell, air duct assembly, indoor unit and air conditioner

Info

Publication number: CN217235791U
Application number: CN202220052465.1U
Authority: CN
Inventors: 陈吉存; 成汝振; 郝本华
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-08-19
Anticipated expiration: 2032-01-10

Abstract

The utility model belongs to the technical field of the air conditioner, concretely relates to wind channel casing, wind channel assembly, indoor set and air conditioner. The wind channel casing includes: the volute comprises a volute tongue and a volute matched with the volute tongue; the volute comprises an upper end cover and a lower end cover; the upper end cover and the lower end cover are respectively fastened and connected with two opposite ends of the vortex tongue and are positioned on the same side of the vortex tongue; the top surface of the upper end cover is downwards sunken along the direction towards the lower end cover to form a bearing wall; the bearing wall is used for being in surface contact with the sealing gasket and is fixedly connected with the sealing gasket. The wind channel assembly includes: a sealing gasket and an air duct shell; the sealing gasket is in surface contact with the bottom surface of the bearing wall and is fixedly connected with the bearing wall, and the sealing gasket is used for surface contact with the top end of the heat exchanger and is abutted against the heat exchanger. The indoor unit includes: heat exchanger and wind channel assembly. The air conditioner includes: an outdoor unit and an indoor unit; the indoor unit is connected with the outdoor unit through a pipeline. Through the arrangement, no gap is formed between the top end face of the heat exchanger and the upper end cover.

Description

Air duct shell, air duct assembly, indoor unit and air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, concretely relates to wind channel casing, wind channel assembly, indoor set and air conditioner.

Background

Currently, indoor units include upright-type indoor units and wall-mounted indoor units. Compared with a wall-mounted indoor unit, the vertical indoor unit has the advantages that the area covered by wind blown out of the vertical indoor unit is in accordance with the human body, the wind area of the human body is large, and the change speed of the body surface temperature of the human body is increased.

In the related art, the vertical indoor unit includes a casing, and an air duct assembly, a heat exchanger and a gasket installed in the casing; the shell is provided with an air outlet and an air inlet; the air duct assembly comprises a volute tongue and a volute, wherein the volute tongue and the volute define an opening communicated with the air outlet; the volute comprises an upper end cover, a lower end cover and a connecting seat, wherein two ends of the connecting seat are respectively connected with the upper end cover and the lower end cover and are parallel to the axial direction of the vertical indoor unit; the heat exchanger is positioned between the upper end cover and the lower end cover, and the bottom end of the heat exchanger is contacted with the inner side surface of the lower end cover; the gasket is positioned between the upper end cover and the top end of the heat exchanger and is bonded with the heat exchanger, and the gasket is abutted against the upper end cover.

However, when the vertical indoor unit is assembled, a gap is formed between the heat exchanger and the air duct assembly, so that air leakage occurs.

SUMMERY OF THE UTILITY MODEL

The air duct assembly aims to solve the problems in the prior art, namely, the problem of air leakage caused by the fact that a gap exists between the heat exchanger and the air duct assembly in the prior art is solved.

In a first aspect, the present invention provides an air duct housing, comprising a volute tongue and a volute casing engaged with the volute tongue;

the volute comprises an upper end cover and a lower end cover;

the upper end cover and the lower end cover are respectively and fixedly connected with two opposite ends of the vortex tongue, and the upper end cover and the lower end cover are positioned on the same side of the vortex tongue;

the top surface of the upper end cover is downwards sunken along the direction towards the lower end cover to form a bearing wall;

the bearing wall is used for being in surface contact with the sealing gasket and is fixedly connected with the sealing gasket.

In a preferred embodiment of the above air duct housing, the bearing wall includes a plate-shaped first bending section, a first rectangular section, and a second rectangular section;

and two ends of the first bending section are respectively and fixedly connected with the connecting end of the first rectangular section and the connecting end of the second rectangular section.

In a preferred technical solution of the above air duct housing, a width of the bearing wall is greater than or equal to a width of the sealing gasket; and/or the presence of a gas in the atmosphere,

the distance between the bottom end surface of the bearing wall and the bottom end surface of the upper end cover is 2-4 mm.

In the preferred technical scheme of the air duct shell, both ends of the bearing wall are provided with connecting holes and positioning parts;

the connecting hole is used for a fastener for fixedly connecting the upper end cover and the heat exchanger to penetrate through;

the positioning part is used for positioning the relative positions of the upper end cover and the heat exchanger when the upper end cover and the heat exchanger are assembled.

In a preferred embodiment of the above air duct housing, the positioning portion includes a first plate-shaped section, a second plate-shaped section, and a third plate-shaped section; the first plate-shaped section is installed on the bottom surface of the bearing wall, and the connecting hole is positioned on the first plate-shaped section; the second plate-shaped section and the third plate-shaped section are respectively arranged on two adjacent side edges of the first plate-shaped section and are perpendicular to the first plate-shaped section, and the third plate-shaped section is arranged close to the heat exchanger; the first plate-shaped section, the second plate-shaped section and the third plate-shaped section together define a positioning notch; and/or the presence of a gas in the gas,

the positioning part and the bearing wall are of an integral structure.

In a second aspect, the present invention provides an air duct assembly, comprising a sealing gasket and the air duct housing;

the sealing gasket is in surface contact with the bottom surface of the bearing wall and is fixedly connected with the bearing wall, and the sealing gasket is used for surface contact with the top end surface of the heat exchanger and is abutted to the heat exchanger.

In a preferred embodiment of the above air duct assembly, the sealing pad includes a second bending section, a third rectangular section and a fourth rectangular section;

and two ends of the second bending section are respectively and fixedly connected with the connecting end of the third rectangular section and the connecting end of the fourth rectangular section.

In a preferred embodiment of the above air duct assembly, the sealing gasket is bonded to the bearing wall; and/or the presence of a gas in the gas,

the sealing gasket is a polyurethane plate or a polyethylene plate.

In a third aspect, the present invention provides an indoor unit, comprising a heat exchanger and the above air duct assembly;

the volute tongue and the volute of the air duct assembly define an opening communicated with an air outlet of the indoor unit;

the heat exchanger is arranged between the upper end cover and the lower end cover, and the top end surface of the heat exchanger is in surface contact with the sealing gasket and is abutted against the sealing gasket;

the left end and the right end of the heat exchanger are respectively and fixedly connected with the two ends of the vortex tongue, and the upper end and the lower end of the heat exchanger are respectively and fixedly connected with the upper end cover and the lower end cover.

In a fourth aspect, the present invention provides an air conditioner, comprising an outdoor unit and the indoor unit;

the indoor unit is connected with the outdoor unit through a pipeline.

As can be understood by those skilled in the art, the air duct shell, the air duct assembly, the indoor unit and the air conditioner of the present invention comprise a volute tongue and a volute casing matched with the volute tongue; the volute comprises an upper end cover and a lower end cover; the upper end cover and the lower end cover are respectively and fixedly connected with two opposite ends of the vortex tongue, and the upper end cover and the lower end cover are positioned on the same side of the vortex tongue; the top surface of the upper end cover is downwards sunken along the direction towards the lower end cover to form a bearing wall; the bearing wall is used for being in surface contact with the sealing gasket and is fixedly connected with the sealing gasket. When the vertical indoor unit is assembled, the sealing gasket is firstly fixedly arranged on the bottom surface of the bearing wall, and then the top end surface of the heat exchanger abuts against the sealing gasket and is arranged between the upper end cover and the lower end cover so as to assemble the heat exchanger and the air duct shell in place. Because the bearing wall is connected with the sealing gasket in a fastening manner, the relative position of the sealing gasket and the bearing wall cannot be changed in the assembling process of the heat exchanger, and the sealing gasket is always abutted against the heat exchanger and in surface contact with the heat exchanger, so that a gap cannot be formed between the top end surface of the heat exchanger and the upper end cover.

Drawings

Preferred embodiments of the duct case, the indoor unit, and the air conditioner according to the present invention will be described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a partial isometric view of a prior art indoor unit;

fig. 2 is a partial exploded view of an indoor unit in the related art;

fig. 3 is a schematic view of an indoor unit according to an embodiment of the present invention;

figure 4 is an isometric view of a duct housing of an embodiment of the present invention in a first orientation;

figure 5 is an isometric view of a duct housing of an embodiment of the present invention in a second orientation;

FIG. 6 is an enlarged view of a portion of the load bearing wall of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 5 at the location of the locating section;

FIG. 8 is a schematic view of a gasket according to an embodiment of the present invention;

fig. 9 is a partial perspective view of an indoor unit according to an embodiment of the present invention.

In the drawings:

100-an air duct housing;

110-vortex tongue; 111-front vortex tongue; 112-rear vortex tongue;

120-a volute; 121-upper end cap; 122-lower end cap; 123-connecting seat;

130-a carrier wall; 131-a first rectangular segment; 132-a first bend section; 133-a second rectangular segment;

140-connecting hole;

150-a positioning section; 151-a first plate-like section; 152-a second plate-like section; 153-a third plate section;

200-a gasket; 210-a second bend section; 220-a third rectangular segment; 230-a fourth rectangular segment;

300-a heat exchanger;

400-a housing;

500-pad.

Detailed Description

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 is a partial isometric view of a prior art indoor unit; fig. 2 is a partial exploded view of an indoor unit in the related art.

As shown in fig. 1 and 2, in the related art, the indoor unit of the stand type includes a cabinet 400, and a duct assembly, a heat exchanger 300, and a gasket 500 installed in the cabinet 400; the casing 400 is provided with an air outlet and an air inlet; the air duct assembly includes a volute tongue 110 and a volute 120, wherein the volute tongue 110 and the volute 120 define an opening in communication with the air outlet; the scroll casing 120 includes an upper end cover 121, a lower end cover 122 and a connecting seat 123, wherein both ends of the connecting seat 123 are respectively connected with the upper end cover 121 and the lower end cover 122 and parallel to the axial direction of the vertical indoor unit; the heat exchanger 300 is located between the upper end cap 121 and the lower end cap 122 and the bottom end of the heat exchanger 300 is in contact with the inner side surface of the lower end cap 122; the gasket 500 is located between the upper end cap 121 and the top end of the heat exchanger 300 and bonded to the heat exchanger 300, and the gasket 500 abuts against the upper end cap 121.

Through careful analysis, the main reason why the problems occur in the invention disclosed by the invention is found is that when the vertical indoor unit is assembled, the heat exchanger and the gasket are assembled firstly to obtain the heat exchanger assembly, and then the heat exchanger assembly is assembled with the air duct assembly. Because the liner adopts the mode of bonding and heat exchanger fastening connection to the bonding area of heat exchanger and liner is little, makes the adhesive force between liner and the heat exchanger little, consequently, in the assembling process of heat exchanger assembly and wind channel subassembly, the upper end cover can extrude the liner and lead to the liner to take place the fold, thereby the liner takes place the dislocation for the heat exchanger, so that appear the clearance between liner and the heat exchanger, and then the phenomenon of leaking out.

In view of the above problems, the inventor of the present disclosure has satisfied the sealing requirement between the top end and the upper end cap of the heat exchanger by changing the fixing position of the gasket to avoid the generation of a gap during the assembly process. Specifically, the top surface of the upper end cover is recessed downwards along the direction towards the lower end cover to form a bearing wall, the bottom surface of the bearing wall is in surface contact with the sealing gasket and is fixedly connected with the sealing gasket, so that the sealing gasket is firstly assembled with the air duct shell to form the air duct assembly, and then the air duct assembly is assembled with the heat exchanger. During the assembly process of the air duct assembly and the heat exchanger, the top end of the heat exchanger is abutted against the sealing gasket and is obliquely arranged, and then the heat exchanger is arranged between the lower end cover and the upper end cover. Because the sealing gasket is tightly connected with the bearing wall, the sealing gasket can not be dislocated relative to the upper end cover in the process of loading the heat exchanger, so that the sealing gasket can seal the gap between the top end of the heat exchanger and the upper end cover. Meanwhile, when the sealing gasket is bonded with the bearing wall, the contact area between the bearing wall and the sealing gasket is large, so that the bonding force between the sealing gasket and the bearing wall can be improved, and the sealing gasket is prevented from being dislocated, so that a gap is formed between the heat exchanger and the upper end cover.

The preferred technical solution of the air duct casing, the air duct assembly, the indoor unit and the air conditioner of the present invention will be described with reference to the specific embodiments.

Fig. 3 is a schematic view of the indoor unit of the present embodiment.

Referring to fig. 3, the indoor unit of the stand, which is generally placed on the ground, is provided. The indoor unit includes a cabinet 400, a duct casing 100, and a heat exchanger 300. Wherein, the casing 400 is provided with an air outlet and an air inlet; the air duct housing 100 is arranged in the machine and is provided with an opening communicated with the air outlet; the heat exchanger 300 is installed in the casing 400 and is disposed close to the air inlet, and the heat exchanger 300 is fastened to the air duct housing 100 and is used for exchanging heat with air flowing from the air inlet to perform cooling or heating.

The air outlet is usually in a long strip shape extending along the vertical direction, so that the area covered by the air blown out from the air outlet is in a long strip shape, and is generally consistent with the shape of a human body when the human body stands, and the air receiving area of the human body is large.

FIG. 4 is an isometric view of the air duct housing of the present embodiment from a first orientation; fig. 5 is an isometric view of the air duct housing of this embodiment in a second orientation.

As shown in fig. 4 and 5, the present embodiment provides an air duct housing 100, which includes a volute tongue 110 and a volute casing 120 engaged with the volute tongue 110.

The volute 120 includes an upper end cover 121 and a lower end cover 122. The upper end cover 121 and the lower end cover 122 are respectively fastened to two opposite ends of the vortex tongue 110, and the upper end cover 121 and the lower end cover 122 are located on the same side of the vortex tongue 110.

The top surface of the upper end cap 121 is recessed downward in a direction toward the lower end cap 122 to form a bearing wall 130; the bearing wall 130 is used to face-contact with the gasket 200 and to be fastened to the gasket 200.

The upper end cover 121 and the lower end cover 122 are both plate-shaped structures, wherein the upper end cover 121 is also used for installing a motor for driving the cross flow fan and the vertical swinging blades to rotate.

In the assembly process of the indoor unit, the gasket 200 is first tightly mounted on the carrier wall 130, and then the heat exchanger 300 is fitted between the upper and

lower covers

121 and 122. During the assembly of the heat exchanger 300, the top end of the heat exchanger 300 abuts against the bottom surface of the gasket 200 and abuts against the gasket 200, then the heat exchanger 300 is obliquely installed into the upper end cover 121 and the lower end cover 122, and finally the heat exchanger 300 is fixed to the upper end cover 121 and the lower end cover 122, respectively.

In the assembling process, because the sealing gasket 200 is tightly connected with the bearing wall 130 and is in surface contact with the bearing wall 130, the sealing gasket 200 is firmly connected with the bearing wall 130, and in the assembling process, the heat exchanger 300 cannot make the sealing gasket 200 dislocate relative to the bearing wall 130, so that the sealing gasket 200 can be in surface contact with the top end of the heat exchanger 300 and abutted against the heat exchanger 300, and further, the gap between the top end of the heat exchanger 300 and the upper end cover 121 is sealed.

The bottom surface of the bearing wall 130 is located below the bottom surface of the upper end cover 121 in the axial direction of the indoor unit, so that when the gasket 200 is assembled with the bearing wall 130, the assembling position of the gasket 200 can be quickly located to improve the assembling efficiency of the gasket 200 and the duct casing 100, and under the action of the heat exchanger 300, the bearing wall 130 enables the gasket 200 to be compressed to ensure that the gap between the heat exchanger 300 and the upper end cover 121 is sealed.

It can be understood that the top surface of the upper end cap 121 is recessed to form the bearing wall 130, so that the bearing wall 130 and the upper end cap 121 can be formed into an integral structure through injection molding, so as to improve the manufacturing efficiency of the air duct housing 100. And the weight of the duct housing 100 can be reduced.

Referring to fig. 4 and 5, the vortex tongue 110 includes a front vortex tongue 111 and a rear vortex tongue 112. The front vortex tongue 111 and the rear vortex tongue 112 are opposite and spaced, two ends of the front vortex tongue 111 are respectively fastened and connected with the upper end cover 121 and the lower end cover 122, and two ends of the rear vortex tongue 112 are respectively fastened and connected with the upper end cover 121 and the lower end cover 122; the front and

rear vortex tongues

111, 112, the upper end cover 121 and the lower end cover 122 together define an opening communicating with the outlet of the indoor unit.

Fig. 6 is a partial enlarged view of fig. 5 at the carrier wall.

Referring to fig. 6, in an alternative implementation, the carrier wall 130 includes a plate-shaped first curved section 132, a first rectangular section 131, and a second rectangular section 133.

Wherein, both ends of the first bending section 132 are respectively and tightly connected with the connecting end of the first rectangular section 131 and the connecting end of the second rectangular section 133. With the above arrangement, the shape of the carrier wall 130 is the same as the cross-sectional shape of the heat exchanger 300, so that it is possible to reduce the area of the gasket 200 and to improve the efficiency of assembly with the gasket 200.

The cross-sectional shape of the carrier wall 130 defined by the first bent section 132, the first rectangular section 131, and the second rectangular section 133 is the same as the cross-sectional shape of the heat exchanger 300, so that the gasket 200 can be accurately positioned with the heat exchanger 300 when the gasket 200 is assembled with the carrier wall 130 in place, thereby sealing the gap between the heat exchanger 300 and the upper end cap 121.

It is noted that the cross-sectional shape of the gasket 200 is the same as that of the heat exchanger 300 in order to reduce the cost of the gasket 200.

In an alternative implementation, the width of the bearing wall 130 is greater than or equal to the width of the gasket 200, so that the gasket 200 can abut against the heat exchanger 300 everywhere to ensure the tightness between the heat exchanger 300 and the upper end cover 121.

It is also possible, among other things, to increase the contact area between the carrier wall 130 and the gasket 200, so that the firmness of the connection between the carrier wall 130 and the gasket 200 may be increased, for example, when the gasket 200 is bonded to the carrier wall 130, the adhesion between the gasket 200 and the carrier wall 130 may be increased, whereby the gasket 200 does not move relative to the carrier wall 130 during the assembly of the heat exchanger 300.

In an alternative implementation, the distance between the bottom end surface of the bearing wall 130 and the bottom end surface of the upper end cap 121 is 2mm to 4mm, so that the gasket 200 can be used for heat exchange with different sizes, for example, in the present embodiment, the distance between the bottom end surface of the bearing wall 130 and the bottom end surface of the upper end cap 121 is 3mm, and the distance between the bottom end surface of the bearing wall 130 and the top end surface of the heat exchanger 300 can be 3mm, and of course, the distance between the bottom end surface of the bearing wall 130 and the top end surface of the heat exchanger 300 can also be 4mm, 5mm, and the like.

Referring to fig. 6, in an alternative implementation, both ends of the bearing wall 130 are provided with a connection hole 140 and a positioning portion 150.

Wherein, the connection hole 140 is used for a fastener for fastening the upper end cover 121 and the heat exchanger 300 to pass through.

Wherein the positioning part 150 is used to position the relative positions of the upper end cover 121 and the heat exchanger 300 when the upper end cover 121 and the heat exchanger 300 are assembled.

The positioning part 150 may be disposed on the bottom surface of the bearing wall 130, for example, the positioning part 150 is disposed on the first and second

rectangular sections

131 and 133.

When the upper end cover 121 is assembled with the heat exchanger 300, the heat exchanger 300 is provided with a support lug, and the support lug is provided with a through hole, so that the fastener penetrates through the connecting hole 140 and the through hole and is fastened and connected with the support lug, and the heat exchanger 300 and the upper end cover 121 are fastened and connected.

For example, when the heat exchanger 300 is screwed to the upper end cap 121, the fastening member may be a screw or a bolt, and correspondingly, the connection hole 140 and the through hole are both threaded holes.

It should be further noted that when the gasket 200 is installed on the bearing wall 130, the gasket 200 is located between the two connecting holes 140, or both ends of the gasket 200 are provided with through holes or notches for the fasteners to pass through.

Fig. 7 is a partially enlarged view of fig. 5 at the positioning portion.

Referring to fig. 7, optionally, the positioning part 150 includes a first plate-shaped section 151, a second plate-shaped section 152, and a third plate-shaped section 153.

Wherein the first plate-shaped section 151 is mounted on the bottom surface of the bearing wall 130, and the connection hole 140 is located on the first plate-shaped section 151; the second plate-shaped section 152 and the third plate-shaped section 153 are respectively installed on two adjacent side edges of the first plate-shaped section 151 and are perpendicular to the first plate-shaped section 151, and the third plate-shaped section 153 is arranged next to the heat exchanger 300; the first plate-shaped section 151, the second plate-shaped section 152, and the third plate-shaped section 153 together define a positioning notch, so that the relative position of the heat exchanger 300 and the air duct housing 100 can be ensured during the assembly process of the heat exchanger 300 and the air duct housing 100.

When assembled, the first plate-like section 151 is inserted into a fitting hole or a fitting notch on the top end of the heat exchanger 300, thereby positioning the heat exchanger 300 in the first direction. In the second direction, the second plate-like section 152 is in face contact with the end face of the heat exchanger 300 and abuts the heat exchanger 300, thereby defining the position of the heat exchanger 300. In the third direction, the third plate section 153 is in face contact with a side end of the heat exchanger 300 and abuts the heat exchanger 300, thereby defining the position of the heat exchanger 300. Wherein the first direction is perpendicular to the second direction and the third direction, respectively, and the second direction is perpendicular to the third direction.

Referring to fig. 7, alternatively, in order to primarily fix the heat exchanger 300 and the upper end cover 121, and to prevent the positions of the heat exchanger 300 and the upper end cover 121 from being changed, the third plate-shaped section 153 may be configured in a jaw structure, so that the third plate-shaped section 153 may be snapped with the heat exchanger 300 to fix the heat exchanger 300. For example, the longitudinal section of the third plate-like section 153 includes a vertical section and a horizontal section. Wherein, the both ends of vertical section respectively with horizontal segment and first platelike section 151 fastening connection to vertical section and horizontal segment define the joint breach with heat exchanger 300 joint, thereby third platelike section 153 can with the above-mentioned journal stirrup joint.

The first, second, and third plate-shaped

sections

151, 152, and 153 may be an integral structure to improve manufacturing efficiency of the positioning part 150.

Alternatively, the positioning portion 150 and the bearing wall 130 are of an integral structure, so that the positioning portion 150 can be manufactured by injection molding, thereby improving the manufacturing efficiency of the positioning portion 150.

The present embodiment further provides an air duct assembly, which includes the sealing gasket 200 and the air duct housing 100.

The gasket 200 is in surface contact with the bottom surface of the supporting wall 130 and is tightly connected to the supporting wall 130, and the gasket 200 is in surface contact with the top end surface of the heat exchanger 300 and is abutted to the heat exchanger 300.

When the air duct assembly is assembled with the heat exchanger 300, the gasket 200 is located between the top end surface of the heat exchanger 300 and the bearing wall 130, and the gasket 200 is compressed, thereby sealing the gap between the heat exchanger 300 and the bearing wall 130 to prevent air leakage.

Fig. 8 is a schematic view of the gasket of the present embodiment.

Referring to fig. 8, in an alternative implementation, the gasket 200 includes a plate-shaped second curved section 210, a third rectangular section 220, and a fourth rectangular section 230.

The two ends of the second bending section 210 are respectively fastened and connected with the connecting end of the third rectangular section 220 and the connecting end of the fourth rectangular section 230, so that the shape of the sealing gasket 200 is the same as that of the bearing wall 130, the area of the sealing gasket 200 can be reduced on the premise of ensuring sealing, and therefore, the manufacturing cost of the air duct assembly can be reduced.

In an alternative implementation, the gasket 200 is bonded to the bearing wall 130, which can improve the assembly efficiency of the gasket 200 and the duct casing 100.

For the gasket 200 defined by the second curved section 210, the third rectangular section 220, and the fourth rectangular section 230, making the shape of the gasket 200 the same as the shape of the bearing wall 130 reduces the difficulty in positioning the gasket 200 and the bearing wall 130, so that the assembling efficiency of the gasket 200 and the bearing wall 130 can be improved.

In an alternative implementation, the gasket 200 is a polyurethane or polyethylene sheet.

Fig. 9 is a partial perspective view of the indoor unit of the present embodiment.

Referring to fig. 9, the present embodiment further provides an indoor unit, which includes a heat exchanger 300 and the air duct assembly.

Wherein the volute tongue 110 and the volute casing 120 of the air duct assembly define an opening communicating with the air outlet of the indoor unit.

The heat exchanger 300 is installed between the upper end cover 121 and the lower end cover 122, and the top end surface of the heat exchanger 300 is in surface contact with the gasket 200 and is abutted against the gasket 200; the left and right ends of the heat exchanger 300 are respectively fastened to the two ends of the volute tongue 110, and the upper and lower ends of the heat exchanger 300 are respectively fastened to the upper end cover 121 and the lower end cover 122.

The structure of the vortex tongue 110 has been explained in the above, and is not specifically explained here.

When the air conditioner is cooling, the heat exchanger 300 corresponds to an evaporator. The heat exchanger 300 corresponds to a condenser when the air conditioner heats.

Illustratively, the heat exchanger 300 includes a third curved section, a fifth rectangular section, and a sixth rectangular section; and two ends of the third bending section are respectively and fixedly connected with the fifth rectangular section and the sixth rectangular section.

The embodiment also provides an air conditioner, which comprises an outdoor unit and the indoor unit.

Wherein, the indoor set passes through the pipeline and is connected with the off-premises station.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air duct shell is characterized by comprising a volute tongue and a volute matched with the volute tongue;

the volute comprises an upper end cover and a lower end cover;

2. The air duct housing according to claim 1, wherein the bearing wall includes a plate-like first curved section, a first rectangular section, and a second rectangular section;

3. The air duct housing of claim 1, wherein the width of the bearing wall is greater than or equal to the width of the gasket; and/or the presence of a gas in the atmosphere,

4. The air duct casing according to claim 1, wherein both ends of the bearing wall are provided with a connecting hole and a positioning portion;

the connecting hole is used for allowing a fastener for fastening and connecting the upper end cover and the heat exchanger to pass through;

5. The air duct housing according to claim 4, wherein the positioning portion includes a first plate-like section, a second plate-like section, and a third plate-like section; the first plate-shaped section is installed on the bottom surface of the bearing wall, and the connecting hole is positioned on the first plate-shaped section; the second plate-shaped section and the third plate-shaped section are respectively arranged on two adjacent side edges of the first plate-shaped section and are perpendicular to the first plate-shaped section, and the third plate-shaped section is arranged close to the heat exchanger; the first plate-shaped section, the second plate-shaped section and the third plate-shaped section together define a positioning notch; and/or the presence of a gas in the gas,

the positioning part and the bearing wall are of an integral structure.

6. An air duct assembly comprising a seal and an air duct housing according to any one of claims 1 to 5;

7. The air duct assembly of claim 6, wherein the gasket includes a plate-shaped second curved section, a third rectangular section, and a fourth rectangular section;

8. The air duct assembly of claim 6, wherein the gasket is bonded to the load-bearing wall; and/or the presence of a gas in the gas,

the sealing gasket is a polyurethane plate or a polyethylene plate.

9. An indoor unit comprising a heat exchanger and the duct assembly of any one of claims 6 to 8;

10. An air conditioner comprising an outdoor unit and the indoor unit according to claim 9;

the indoor unit is connected with the outdoor unit through a pipeline.