CN110425715A - A kind of air duct sealing structure and air conditioner - Google Patents

Abstract

The present invention provides an air duct sealing structure and an air conditioner. The air duct sealing structure is arranged at the split place of the upper base and the lower base, including a first sealing member arranged on the upper base and/or arranged on The second seal on the lower base, the first seal or the second seal is in contact with the evaporator of the air conditioner in the assembled state, and is suitable for sealing the disassembly of the upper base and the lower base. sub-office. The air duct sealing structure of the present invention utilizes that the first sealing member abuts against the evaporator during the assembly process, and/or the second sealing member abuts against the evaporator to shield the split between the upper base and the lower base. The sealing of the split part of the air duct is easy and convenient to operate.

Description

Air duct sealing structure and air conditioner

technical field

The invention relates to the technical field of air conditioning, in particular to an air duct sealing structure and an air conditioner.

Background technique

With the continuous improvement of people's living standards, air conditioners have been widely used.

As the core component of the air conditioner, the air duct is very critical for its sealing and reliability. In the split-type air conditioner, the base can be split into an upper base and a lower base, and when the base is split, the air duct is also split. In order to solve the sealing problem at the split position of the air duct, at present, most of the traditional solutions are pasting sponge, but its operability and sealing effect are poor.

It can be seen that developing an air duct sealing structure that can effectively solve the above-mentioned problems is an urgent technical problem to be solved at present.

Contents of the invention

The present invention provides an air duct sealing structure and an air conditioner to solve at least one of the existing problems of sealing performance, reliability and operability when pasting sponges at the split positions of the air duct to seal the air duct.

The present invention provides an air duct sealing structure, which is arranged at the separation place of the upper base and the lower base, including a first sealing member arranged on the upper base and/or a second sealing member arranged on the lower base The first seal or the second seal abuts against the evaporator of the air conditioner in an assembled state, and is suitable for sealing the split between the upper base and the lower base.

Compared with the prior art, in the present invention, the first sealing member is in contact with the evaporator during the assembly process, and/or the second sealing member is in contact with the evaporator, so as to shield the split between the upper base and the lower base , to realize the sealing of the split part of the air duct, the operation is simple and convenient.

Optionally, the air duct sealing structure includes a first sealing member and a second sealing member, the first sealing member is a rib structure arranged transversely relative to the second sealing member, and covers all Describe the second seal.

In this way, the first sealing member arranged horizontally can not only seal against the air leakage surface, but also provide support for the evaporator, and use the evaporator to apply pressure to the first sealing member in the up and down direction, increasing the contact between the first sealing member and the second sealing member. The extrusion force between the parts makes the abutment between the first sealing part and the second sealing part tighter and the sealing effect is better.

Optionally, the air duct sealing structure includes a first sealing member, and the first sealing member is a transverse rib structure, and is located in the rear edge water groove of the lower base in an assembled state.

In this way, the air leakage surface is sealed frontally through the first sealing member, and at the same time cooperates with the rear edge water tank to further shield and seal the split between the upper base and the lower base, thereby improving the sealing effect.

Optionally, the air duct sealing structure includes a second sealing member, the second sealing member is arranged in the rear edge water groove of the lower base, and the rear edge water groove is arranged along the length direction of the rear edge water groove It is divided into a first rear water tank and a second rear water tank, and the first water tank is close to the rear edge of the lower base.

In this way, when it is necessary to add a sealing structure such as a sealing sponge in the first rear water tank to further seal the split of the air duct, the second sealing member can prevent condensed water from flowing into the first rear water tank, soaking the sealing sponge, and affecting drainage, thereby The drainage area and the sealing area are separated so that the two do not interfere with each other and the reliability is higher.

Optionally, the air duct sealing structure further includes a third sealing member disposed on the first sealing member and located below the first sealing member, and the third sealing member is relatively sealed relative to the first sealing member. The parts are arranged vertically and are located in the rear edge water tank of the lower base in an assembled state.

In this way, when the air in the air duct is blown from top to bottom to the split, there may be a small amount of air seepage at the abutment between the first sealing member and the second sealing member, that is, a small amount of wind in the air duct may It will be blown into the first rear water tank from the abutment between the first seal and the second seal, and part of the air blown into the first rear water tank will flow back to the wind under the obstruction of the third seal. In this way, the sealing effect is further improved; moreover, the arrangement of the third sealing member can also enhance the structural strength of the first sealing member, so as to provide better support for the evaporator.

Optionally, the second sealing element and the third sealing element are arranged parallel to each other, and are vertically connected to the first sealing element on the same side of the first sealing element.

In this way, the air leakage at the split part of the air duct can be further reduced, thereby further improving the sealing effect of the air duct sealing structure on the split part of the air duct.

Optionally, there is a distance between the third sealing member and the bottom of the trailing water tank in an assembled state.

In this way, the adjustment space required during installation can be reserved, preventing the lower base from being unable to adjust the installation position due to abutting interference between the third sealing member and the bottom of the first rear water tank during the installation process, which affects installation efficiency.

Optionally, a first sealing layer is provided between the second sealing member and the third sealing member; during assembly, the second sealing member compresses the first sealing layer and the first sealing layer The three seals form an abutment.

In this way, the air leakage between the second sealing member and the third sealing member can be reduced, and the sealing performance between the second sealing member and the third sealing member can be further improved.

Optionally, a second sealing layer is provided between the first sealing member and the second sealing member; during assembly, the second sealing member compresses the second sealing layer and the first sealing layer A seal forms the abutment.

In this way, not only can further reduce the air leakage between the first sealing member and the second sealing member, so as to further improve the sealing performance between the first sealing member and the second sealing member; Between the two sealing parts, the direct contact between the second sealing layer and the evaporator can be avoided, effectively avoiding damage to the second sealing layer when the base is disassembled, thereby prolonging the service life of the second sealing layer.

Optionally, the second sealing layer is arranged at a position where the first sealing member faces toward the second sealing member at alternately cold and hot positions.

In this way, the second sealing layer forms a water film after being water-condensed under the alternating action of cold and heat, so that the water film can be used for sealing, and the sealing performance is better.

In order to solve the above problems, the present invention also provides an air conditioner, comprising any one of the air duct sealing structures described above.

Compared with the prior art, the air conditioner has the same advantages as the above-mentioned air duct sealing structure, which will not be repeated here.

Description of drawings

Fig. 1 is a structural schematic diagram of an air duct sealing structure in an embodiment of the present invention;

Figure 2 is a partial enlarged view of A in Figure 1;

Fig. 3 is a partial enlarged view of another situation at place A in Fig. 1;

Fig. 4 is a schematic structural view of the upper base at the first sealing member in the embodiment of the present invention;

Fig. 5 is a schematic diagram of the structure of the lower base at the rear edge of the water tank in the embodiment of the present invention.

Explanation of reference signs:

1-Evaporator, 2-Upper base, 21-First seal, 22-Third seal, 3-Lower base, 31-Second seal, 32-Rear edge water tank, 321-First rear water tank, 322 - 2nd back sink, 4 - 1st seal, 5 - 2nd seal.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "high" and "low" are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in FIG. 1 to FIG. 5 , this embodiment provides an air duct sealing structure, which is arranged at the split of the upper base 2 and the lower base 3 , and the air duct sealing structure includes a first sealing structure arranged on the upper base 2 Part 21 and/or the second sealing part 31 arranged on the lower base 3, the first sealing part 21 or the second sealing part 31 abuts against the evaporator 1 of the air conditioner in the assembled state, and is suitable for sealing the disassembly of the air duct place.

Since the base of the air conditioner is disassembled along the length direction of the base, and the air duct is also disassembled when the base is disassembled, the disassembly of the upper base 2 and the lower base 3 is also The splitting place of the air duct is located in the length direction of the upper base 2 or the lower base 3 . The first seal 21 is arranged at the lower end of the upper base 2 and extends along the length direction of the upper base 2, and the second seal 31 is arranged at the upper end of the lower base 3 and extends along the length of the lower base 3, that is, in In the length direction of the upper base 2 or the lower base 3 , the first seal 21 and the second seal 31 extend from one end of the split to the other end. Wherein, in conjunction with Fig. 4 and shown in Fig. 5, because the size of upper base 2 and lower base 3 in the left-right direction is greater than the size in other directions, so the length direction of upper base 2 or lower base 3 is in Fig. 4 or Fig. 5 The left-right direction, while the width direction of the upper base 2 or the lower base 3 is the front-rear direction in FIG. 4 or FIG. 5 . When assembling the upper base 2 and the lower base 3, the upper base 2 is fixed first, and then the lower base 3 is assembled on the upper base 2. During the assembly process, it is usually necessary to swing or repeatedly move the lower base 3 to adjust And determine the installation position between the lower base 3 and the upper base 2, if the first seal 21 and the second seal 31 are not provided, if only the sealing sponge is pasted at the split of the upper base 2 and the lower base 3 At the part where the seal is split, it is easy for the sealing sponge to fall off during the swing or repeated movement of the lower base 3. At this time, the sealing sponge needs to be pasted again. The operation is cumbersome and the efficiency is low. The sealing effect of the air duct split. However, in this embodiment, the air duct sealing structure may only include the first sealing member 21. At this time, the first sealing member 21 is in contact with the evaporator 1 of the air conditioner, and the splitting of the upper base 2 or the lower base 3 is carried out. shielding; it can also only include the second sealing member 31, at this time the second sealing member 31 abuts against the evaporator 1 of the air conditioner, and shields the split part of the upper base 2 or the lower base 3; it can also include the second sealing member at the same time A sealing member 21 and a second sealing member 31. At this time, the upper end surface of the first sealing member 21 is in contact with the evaporator 1 of the air conditioner, and the lower end surface is in contact with the second sealing member 31, and the upper base 2 or the lower base 3 Blocking at the split. When the lower base 3 is assembled on the upper base 2, the first sealing member 21 and/or the second sealing member 31 will cover the separation of the upper base 2 and the lower base 3, so as to seal along the upper base 2 or the lower base 3 The length direction of the air duct is sealed at the split.

Compared with the prior art, in this embodiment, the first seal 21 abuts against the evaporator 1 and/or the second seal 31 abuts the evaporator 1 during the assembly process, and the upper base 2 and the lower base 3 are connected to each other. The split part is covered to realize the sealing of the split part of the air duct, and the operation is simple and convenient.

Optionally, the first sealing member 21 and the second sealing member 31 are integrally formed with the upper base 2 and the lower base 3 respectively.

In this way, on the one hand, the number of components of the upper base 2 and the lower base 3 can be reduced, and the assembly efficiency can be improved; The connection between 31 and the lower base 3 is more firm and reliable, which can prevent the first sealing member 21 and/or the second sealing member 31 from shifting during the assembly process, thereby further improving the sealing effect of the split part of the air duct.

Optionally, as shown in FIG. 2 and FIG. 4 , the air duct sealing structure includes a first sealing member 21 and a second sealing member 31 , the first sealing member 21 is a rib structure arranged transversely relative to the second sealing member 31 , And shields the second seal 31 in the assembled state.

In this embodiment, the air duct sealing structure includes a first sealing member 21 and a second sealing member 31, the first sealing member 21 is a plate-shaped rib structure, and is arranged transversely relative to the second sealing member 31, wherein the transverse arrangement It means that, taking the second sealing member 31 as a reference, when the second sealing member 31 is set with a width dimension larger than the thickness dimension, the first seal 21 is set with a width dimension smaller than the thickness dimension, wherein, in this embodiment, the The width direction is the up-down direction in FIG. 1, and the thickness direction is the front-rear direction in FIG. 21 is formed by extending the lower end of the upper base 2 toward the front. The air entering the air conditioner rotates in the air duct under the action of the axial flow vane and is sent out from the air outlet, while the air at the split part of the air duct is blown from top to bottom under the action of the axial flow vane. The split part is equivalent to the first seal 21 blown from top to bottom to the split part. The first seal 21 prevents the air from leaking from the split part on the front side of blowing, so as to realize the frontal sealing of the air leakage surface. When the lower base 3 is assembled on the upper base 2, the first seal 21 is located above the second seal 31 and covers the second seal 31, that is, only the first seal can be seen from the top down 21, and the second seal 31 cannot be seen. Since the rear end of the evaporator 1 is located at the disassembly of the air duct in the assembled state, when the first sealing member 21 is arranged laterally relative to the second sealing member 31, the rear end of the evaporator 1 can abut against the first sealing member 21 on.

In this way, the first sealing member 21 arranged horizontally can not only seal the air leakage surface, but also provide support for the evaporator 1, and use the evaporator 1 to exert pressure on the first sealing member 21 in the up and down direction, increasing the number of first sealing members. The extrusion force between the first sealing member 21 and the second sealing member 31 makes the contact between the first sealing member 21 and the second sealing member 31 tighter, and the sealing effect is better.

Optionally, the air duct sealing structure includes a first sealing member 21, which is a transverse rib structure, and is located in the rear edge water groove 32 of the lower base 3 in an assembled state.

In this embodiment, the air duct sealing structure only includes the first sealing member 21, and the first sealing member 21 is a transverse rib structure, which is the same as that described in the above-mentioned embodiment, and will not be repeated here. Meanwhile, the first The seal 21 is located in the rear edge water tank 32 of the lower base 3, and the lowest point of the first seal 21 is in the rear edge water tank 32, and the front end of the first seal 21 is the lowest point of the first seal 21, so the first seal 21 The front end of a sealing member 21 is in the rear edge water groove 32 . In this way, the first sealing member 21 is used to seal the air leakage surface, and at the same time cooperate with the rear edge water tank 32 to further block and seal the split between the upper base 2 and the lower base 3 to improve the sealing effect.

Optionally, as shown in FIG. 2 and FIG. 5 , the air duct sealing structure includes a second sealing member 31. The second sealing member 31 is arranged in the rear edge water groove 32 of the lower base 3, and is arranged along the length direction of the rear edge water groove 32. The rear edge water tank 32 is divided into a first rear water tank 321 and a second rear water tank 322 , and the first rear water tank 321 is close to the rear edge of the lower base 3 .

In this embodiment, the air duct sealing structure only includes the second sealing member 31 . Since the split position of the upper base 2 and the lower base 3 is located at the rear edge of the water tank 32 of the lower base 3, and the rear edge of the water tank 32 is arranged along the length direction of the lower base 3, so the length direction of the rear edge of the water tank 32 is also the direction of the lower base 3. Longitudinal direction. In this embodiment, the second sealing member 31 has a plate-shaped rib structure, and is arranged in the rear edge water tank 32 along the length direction of the rear edge water tank 32, and divides the rear edge water tank 32 into two parts, namely the first rear water tank 321 and the second rear water tank 322, wherein the first rear water tank 321 is close to the rear edge of the lower base 3, that is, the first rear water tank 321 and the second rear water tank 322 are sequentially arranged from back to front, as shown in Figure 1 or Figure 5 Show.

In this way, when it is necessary to add a sealing structure such as a sealing sponge in the first rear water tank 321 to further seal the split of the air duct, the second sealing member 31 can prevent condensed water from flowing into the first rear water tank 321, soaking the sealing sponge, and affecting Drainage, thereby isolating the drainage area and the sealing area, so that the two do not interfere with each other, and the reliability is higher.

On this basis, when the air duct sealing structure includes the first sealing member 21 and the second sealing member 31 , the first sealing member 21 covers the first rear water tank 321 . Specifically, the lower end surface of the first sealing member 21 abuts against the upper end of the second sealing member 31 and covers the first rear water tank 321, so that the condensed water dripping from the evaporator 1 into the second rear water tank 322 is The second rear water tank 322 is discharged without flowing into the first rear water tank 321 from the abutment between the first sealing member 21 and the second sealing member 31 , so as to further ensure that the drainage area and the sealing area do not interfere with each other.

Optionally, as shown in FIG. 2 , the air duct sealing structure further includes a third sealing member 22 disposed on the first sealing member 21 and located below the first sealing member 21 , and the third sealing member 22 is relatively sealed against the first sealing member 21. The component 21 is arranged vertically, and is located in the rear edge water tank 32 of the lower base 3 in an assembled state.

In this embodiment, the air duct sealing structure includes a first sealing member 21, a second sealing member 31 and a third sealing member 22, and the third sealing member 22 is a plate-shaped rib structure arranged vertically relative to the first sealing member 21. , and is located in the first rear water tank 321. The third sealing member 22 is disposed below the first sealing member 21 and integrally formed with the first sealing member 21 . The vertical setting of the third sealing member 22 relative to the first sealing member 21 means that, taking the first sealing member 21 as a reference, when the first sealing member 21 is arranged with a width dimension smaller than the thickness dimension, the third sealing member 22 has a width dimension It is set in a state larger than the thickness dimension, wherein the width direction referred to in this embodiment is the up-down direction in FIG. 1, and the thickness direction is the front-back direction in FIG. greater than the dimension in the front-to-back direction.

In this way, when the air in the air duct blows from top to bottom to the split, there may be a small amount of air seepage at the abutment between the first sealing member 21 and the second sealing member 31, that is, the wind in the air duct may have A small amount of air will be blown into the first rear water tank 321 from the abutment between the first sealing member 21 and the second sealing member 31 , and the air blown into the first rear water tank 321 is hindered by the third sealing member 22 , part of it will flow back into the air duct, thereby further improving the sealing effect; moreover, the setting of the third sealing member 22 can also enhance the structural strength of the first sealing member 21, so as to provide better support for the evaporator 1 .

It should be noted that the air duct sealing structure including the first sealing member 21 , the second sealing member 31 and the third sealing member 22 will be described in detail below as an example.

Optionally, as shown in FIG. 2 , the second sealing member 31 and the third sealing member 22 are arranged parallel to each other, and are vertically connected to the first sealing member 21 on the same side of the first sealing member 21 .

In this embodiment, the first sealing member 21 , the second sealing member 31 and the third sealing member 22 are plate-shaped rib structures, and are arranged along the length direction of the upper base 2 or the lower base 3 . In the assembled state, both the second sealing member 31 and the third sealing member 22 are located below the first sealing member 21 and connected with the first sealing member 21, meanwhile, the second sealing member 31 and the third sealing member 22 are parallel to each other , and are all perpendicular to the first sealing member 21, so as to form a labyrinth structure.

In this way, the air leakage at the split part of the air duct can be further reduced, thereby further improving the sealing effect of the air duct sealing structure on the split part of the air duct.

Optionally, there is a distance between the third sealing member 22 and the groove bottom of the trailing water groove 32 in an assembled state.

That is to say, in the assembled state, the lower end of the third seal 22 does not abut against the bottom of the trailing water tank 32, but has a certain gap with the bottom of the trailing water tank 32; based on the second seal The member 31 is arranged in the rear water tank 32, and the rear water tank 32 is divided into a first rear water tank 321 and a second rear water tank 322, and the third sealing member 22 is located in the first rear water tank 321, and the third sealing member 22 is located in the first rear water tank 321. In the assembled state, there is a distance between the bottom of the rear water tank 32, that is to say, the lower end of the third seal 22 does not abut against the bottom of the first rear water tank 321, but touches the bottom of the first rear water tank 321. There is a certain gap between the bottoms.

In this way, the adjustment space required during installation can be reserved to prevent the lower base 3 from being unable to adjust the installation position due to the abutment and interference between the third sealing member 22 and the groove bottom of the first rear water tank 321 during the installation process, which affects the Installation efficiency.

Optionally, as shown in FIG. 3 , a first sealing layer 4 is provided between the second sealing member 31 and the third sealing member 22; The third seal 22 forms an abutment.

In this embodiment, the first sealing layer 4 can be other sealing structures such as sealing sponge or sealing ribs, and the first sealing layer 4 can be pasted on the leeward side of the first sealing member 21, that is, on the side of the first sealing member 21. The lower end surface may also be pasted on the side of the second sealing member 31 facing the first sealing member 21 . During the process of installing the lower base 3 to the upper base 2 , the second sealing member 31 exerts a pressing force on the first sealing layer 4 , and abuts against the third sealing member 22 by pressing the first sealing layer 4 .

In this way, the air leakage between the second sealing member 31 and the third sealing member 22 can be reduced, and the sealing performance between the second sealing member 31 and the third sealing member 22 can be further improved.

Optionally, as shown in FIG. 3 , a second sealing layer 5 is provided between the first sealing member 21 and the second sealing member 31; A seal 21 forms the abutment.

In this embodiment, the second sealing layer 5 can be other sealing structures such as sealing sponge or sealing ribs, and the second sealing layer 5 can be pasted on the side of the third sealing member 22 facing the second sealing member 31, or It can be pasted on the side of the second sealing member 31 facing the third sealing member 22 . During the process of installing the lower base 3 to the upper base 2 , the second sealing member 31 exerts a pressing force on the second sealing layer 5 , and abuts against the first sealing member 21 by extruding the second sealing layer 5 .

In this way, not only can further reduce the air leakage between the first sealing member 21 and the second sealing member 31, to further improve the sealing performance between the first sealing member 21 and the second sealing member 31; moreover, the second sealing layer 5 is arranged on Between the first sealing member 21 and the second sealing member 31, the second sealing layer 5 can be avoided from being in direct contact with the evaporator 1, effectively avoiding damage to the second sealing layer 5 when disassembling and assembling the base, thus prolonging the second sealing layer. Layer 5 lifetime.

Optionally, the second sealing layer 5 is arranged at the alternate position of cold and heat on the side of the first sealing member 21 facing the second sealing member 31 .

Due to the abutting fit between the first sealing member 21 and the second sealing member 31, the rear edge water tank 32 is divided into a first rear water tank 321 and a second rear water tank 322, and the temperature at the first rear water tank 321 is closer to that of the air conditioner The ambient temperature outside the device, and the temperature at the second rear water tank 322 is the outlet temperature, there is a temperature difference between the two, so it is easy to form a cold and hot alternation at the abutment of the second sealing member 31 and the first sealing member 21 . Therefore, the second sealing layer 5 is provided at the abutting position between the first sealing member 21 and the second sealing member 31 .

In this way, the second sealing layer 5 forms a water film after being water-condensed under the alternating action of cold and heat, so that the water film can be used to achieve sealing, and the sealing performance is better.

This embodiment also provides an air conditioner to solve at least one of the problems of sealing, reliability, and operability that exist when pasting sponges at the split positions of the air ducts to seal the air ducts. The air conditioner includes the above-mentioned Any air duct sealing structure described above.

In the air conditioner in this embodiment, the first sealing member 21 is provided on the upper base 2, and/or the second sealing member 31 is provided on the lower base 3, and the first sealing member 21 abuts against the evaporator 1 during the assembly process. And/or the second sealing member 31 abuts against the evaporator 1 to realize the sealing of the split part of the air duct, which is easy and convenient to operate.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (11)

1. An air duct sealing structure, which is arranged at the split of the upper base (2) and the lower base (3), is characterized in that it comprises a first seal (21) arranged on the upper base (2) ) and/or the second seal (31) arranged on the lower base (3), the first seal (21) or the second seal (31) is in the assembled state with the evaporation of the air conditioner The device (1) abuts against, and is suitable for sealing the disassembly of the upper base (2) and the lower base (3). 2. The air duct sealing structure according to claim 1, characterized in that, the air duct sealing structure comprises a first sealing member (21) and a second sealing member (31), and the first sealing member (21) It is a rib structure arranged transversely relative to the second sealing member (31), and covers the second sealing member (31) in an assembled state. 3. The air duct sealing structure according to claim 1, characterized in that, the air duct sealing structure comprises a first sealing member (21), and the first sealing member (21) is a transverse rib structure, And it is located in the rear edge water tank (32) of the lower base (3) in the assembled state. 4. The air duct sealing structure according to claim 1, characterized in that, the air duct sealing structure comprises a second sealing member (31), and the second sealing member (31) is arranged on the lower base (3 ) in the rear water tank (32), and divide the rear water tank (32) into a first rear water tank (321) and a second rear water tank (322) along the length direction of the rear water tank (32), And the first water tank (321) is close to the rear edge of the lower base (3). 5. The air duct sealing structure according to claim 2, further comprising a third sealing member ( 22), and the third seal (22) is arranged vertically relative to the first seal (21), and is located in the rear edge water groove (32) of the lower base (3) in an assembled state. 6. The air duct sealing structure according to claim 5, characterized in that, the second sealing member (31) and the third sealing member (22) are arranged parallel to each other, and between the first sealing member ( 21) is vertically connected to said first seal (21). 7. The air duct sealing structure according to claim 5, characterized in that there is a distance between the third sealing member (22) and the groove bottom of the trailing water groove (32) in an assembled state. 8. The air duct sealing structure according to claim 5, characterized in that, a first sealing layer (4) is provided between the second sealing member (31) and the third sealing member (22); During assembly, the second sealing member (31) forms abutment against the third sealing member (22) by pressing the first sealing layer (4). 9. The air duct sealing structure according to any one of claims 5-8, characterized in that a second sealing layer is provided between the first sealing member (21) and the second sealing member (31) (5); during the assembly process, the second sealing member (31) forms abutment against the first sealing member (21) by pressing the second sealing layer (5). 10. The air duct sealing structure according to claim 9, characterized in that, the second sealing layer (5) is arranged on a side of the first sealing member (21) facing the second sealing member (31). Alternate hot and cold positions on the side. 11. An air conditioner, characterized by comprising the air duct sealing structure according to any one of claims 1-10.