Air duct components and air conditioners

Abstract

The present invention provides an air duct component and an air conditioner, wherein the air duct component comprises an air duct structure and a volute structure, wherein the volute structure comprises a main body and a volute tongue, wherein the main body has an impeller cavity for accommodating an impeller and a vent connected to the impeller cavity, and the main body is detachably arranged in the ventilating cavity of the air duct structure. With this scheme, since the volute tongue is detachably arranged on the main body, when the air duct experimental test fails to meet the standard, a new volute tongue can be redesigned for installation, so that the adaptability of the air duct component is enhanced and it is convenient to change; and since the volute structure is detachably arranged in the air duct structure, the air duct component can be borrowed into other products, especially when the air duct structure does not need to be changed, only the volute structure needs to be changed and installed in the air duct structure for use. Therefore, the air duct structure has strong versatility, can meet the needs of repeated use, and is convenient to change and replace the local structure, reducing the production cost and production cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air duct component and an air conditioner. Background Art

[0002] The centrifugal fan in the air conditioner has a direct impact on the heat exchange comfort of the air conditioner. The centrifugal fan includes structures such as volute and impeller. Studies have shown that under the premise of the same outer diameter and width of the impeller, as long as the ratio of the inner and outer diameters, the width-to-diameter ratio, and the inlet and outlet installation angles of the impeller are selected within a certain range, the geometric parameters of the impeller have little effect on the performance of the fan; the volute has the greatest impact on the performance of the centrifugal fan. The design of the volute mainly includes the design of the volute profile and the design of the volute tongue. Experimental analysis shows that under the premise of the same impeller, motor and the same maximum width of the volute, different volute profiles and volute tongue designs have great differences in the performance parameters of the fan, such as air volume, air pressure, efficiency, and noise. There is a tongue-shaped structure near the outlet of the volute of the centrifugal fan, called the volute tongue. Its function is to divert the airflow directed to the outlet of the volute to prevent some gas from circulating in the volute. Therefore, the shape and form of the volute tongue have an important influence on the air volume, air pressure, efficiency, and noise of the centrifugal fan.

[0003] During the process of product replacement and upgrading, in order to shorten the development cycle, new products need to directly borrow the air duct components of the previous generation of products. It is often required that the overall size of the existing air duct components remain unchanged, but the internal volute needs to be redesigned (mainly the design of the volute profile and the volute tongue). In other words, the outside of the air duct components does not need to be changed, only the internal structure of the air duct needs to be changed.

[0004] But the reality is that the air duct components of existing products cannot be directly used in the next generation of products because their internal structures (volute profile, tongue and groove structure) are fixed. New products need to be re-molded to make air ducts, which is costly and time-consuming. Therefore, a more versatile air duct structure is needed to meet the needs of repeated use.

[0005] On the other hand, after the prototype test, the air duct components of the newly developed models usually fail to meet the standards for parameters such as air volume and noise, and the structure of the volute tongue often needs to be adjusted and modified, but the molds that have been made cannot be changed, or the change cycle is very long and the cost is high. Therefore, a more adaptable air duct structure is also needed to facilitate changes. Summary of the invention

[0006] The present invention provides an air duct component and an air conditioner, so as to improve the versatility of the existing air duct component and reduce the production cost and production cycle.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, the present invention provides an air duct component, comprising: an air duct structure, the air duct structure having a ventilation cavity and an air inlet connected to the ventilation cavity; a volute structure, the volute structure comprising a main body and a volute tongue portion, the main body having an impeller cavity for accommodating an impeller and a ventilation port connected to the impeller cavity; wherein the main body is detachably arranged in the ventilation cavity of the air duct structure, and the ventilation port and the air inlet are correspondingly arranged; the volute tongue portion is detachably connected to the main body, and the volute tongue portion and a part of the structure of the main body constitute an air outlet channel, and the air outlet channel is connected to the impeller cavity.

[0008] Further, the main body portion includes a base plate and a surrounding plate arranged on the base plate, the vent is arranged on the base plate, the surrounding plate is arranged around the vent, and the base plate is detachably arranged on the air duct structure; the volute tongue portion includes a volute tongue, a side plate and a connecting plate, the connecting plate is arranged on the side plate, the first end of the volute tongue is connected to the side plate, and the second end of the volute tongue cooperates with one end of the surrounding plate; the area between the base plate, the surrounding plate, the volute tongue and the side plate forms the impeller chamber and the air outlet channel; the connecting plate is connected to the base plate and / or the air duct structure.

[0009] Furthermore, the second end of the volute tongue has a first step, and one end of the enclosure has a second step, the second step is cooperatively connected with the first step, and the surface of the enclosure facing the impeller cavity is flush with the surface of the volute tongue facing the impeller cavity.

[0010] Furthermore, the connecting plate is connected to the base plate, the connecting plate has an assembly hole, a plug-in component is provided on the base plate, and the plug-in component is cooperatively connected with the assembly hole.

[0011] Furthermore, the connecting plate is connected to the air duct structure, the connecting plate has an assembly hole, the air duct structure is provided with a plug-in component, and the plug-in component is cooperatively connected with the assembly hole.

[0012] Furthermore, an included angle is formed between the side plate and the bottom plate, and the included angle between the side plate and the bottom plate is in the range of 78° to 85°.

[0013] Furthermore, the main body is an integrally formed structure, and the volute tongue is an integrally formed structure.

[0014] Furthermore, the air duct structure includes a shell part and a cover part that are detachably connected, the shell part and the cover part are both provided with the air inlet, the volute structure is located in the ventilation cavity between the shell part and the cover part, and the base plate is detachably connected to the shell part.

[0015] Further, the shell part includes: an outer shell, the outer shell having the air inlet, the main body being detachably connected to the outer shell; a limit plate, arranged on the outer shell, the limit plate being arranged around the air inlet, the shape of the limit plate matching the shape of the enclosure, the limit plate being limitedly matched with a side of the enclosure facing away from the impeller chamber.

[0016] Furthermore, the air duct component includes a plurality of volute structures, and the plurality of volute structures are distributed in the ventilation cavity of the air duct structure.

[0017] Furthermore, the air duct structure has a first air outlet, a second air outlet and a third air outlet which are arranged in sequence, and the air duct component includes two volute structures, which are respectively a first volute structure and a second volute structure, the first volute structure is located between the first air outlet and the second air outlet, and the second volute structure is located between the second air outlet and the third air outlet; the first volute structure includes a volute tongue portion, and the air outlet channel between the volute tongue portion and the main body is connected to the first air outlet; the second volute structure includes two volute tongue portions, which are spaced apart on the main body to form two air outlet channels, and the air outlet directions of the two air outlet channels are different, wherein one air outlet channel is connected to the second air outlet, and the other air outlet channel is connected to the third air outlet.

[0018] According to another aspect of the present invention, an air conditioner is provided, the air conditioner comprising the above-mentioned air duct component.

[0019] The technical scheme of the present invention is applied to provide a duct component, which includes a duct structure and a volute structure, wherein the duct structure has a ventilation cavity and an air inlet connected to the ventilation cavity; the volute structure includes a main body and a volute tongue, wherein the main body has an impeller cavity for accommodating an impeller and a vent connected to the impeller cavity; wherein the main body is detachably arranged in the ventilation cavity of the duct structure, and the vent and the air inlet are arranged correspondingly; the volute tongue is detachably connected to the main body, and the volute tongue and a part of the main body structure form an air outlet channel, which is connected to the impeller cavity. With this scheme, since the volute tongue is detachably arranged on the main body, when the duct experimental test fails to meet the standard, a new volute tongue can be redesigned for installation, so that the adaptability of the duct component is enhanced and it is convenient to change; and since the volute structure is detachably arranged in the duct structure, the duct component can be borrowed into other products, especially when the duct structure does not need to be changed, only the volute structure needs to be changed and installed in the duct structure for use. Therefore, the air duct structure has strong versatility, can meet the needs of reuse, and is convenient for changing and replacing local structures, thereby reducing production costs and production cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic structural diagram of an air duct component provided in Embodiment 1 of the present invention is shown;

[0022] Figure 2 Shows Figure 1 Schematic diagram of the volute structure in FIG.

[0023] Figure 3 Shows Figure 2 A schematic diagram of the structure of the main body of FIG.

[0024] Figure 4 Shows Figure 2 Schematic diagram of the structure of the tongue of the snail;

[0025] Figure 5 Shows Figure 2 The assembly cross-section diagram of the enclosure and the volute tongue;

[0026] Figure 6 A schematic structural diagram of an air duct component provided in Embodiment 2 of the present invention is shown;

[0027] Figure 7 Shows Figure 6 Assembly drawing of the casing and volute structure;

[0028] Figure 8 Shows Figure 7 Exploded diagram.

[0029] The above drawings include the following reference numerals:

[0030] 10. Air duct structure; 11. Air inlet; 12. Shell; 13. Cover; 14. Shell; 15. Limit plate; 16. First air outlet; 17. Second air outlet; 18. Third air outlet; 20. Volute structure; 30. Main body; 31. Ventilation port; 32. Bottom plate; 33. Enclosure; 34. Connector; 35. Air outlet channel; 40. Volute tongue; 41. Volute tongue; 42. Side plate; 43. Connecting plate; 44. First step; 45. Assembly hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As shown in the accompanying drawings, embodiment 1 of the present invention provides an air duct component, including: an air duct structure 10, the air duct structure 10 has a ventilation cavity and an air inlet 11 connected to the ventilation cavity; a volute structure 20, the volute structure 20 includes a main body 30 and a volute tongue portion 40, the main body 30 has an impeller cavity for accommodating an impeller and a ventilation port 31 connected to the impeller cavity; wherein the main body 30 is detachably arranged in the ventilation cavity of the air duct structure 10, and the ventilation port 31 and the air inlet 11 are correspondingly arranged; the volute tongue portion 40 is detachably connected to the main body 30, and the volute tongue portion 40 and a part of the structure of the main body 30 constitute an air outlet channel 35, and the air outlet channel 35 is connected to the impeller cavity.

[0033] By applying the technical solution of the present invention, there is provided an air duct component, which includes an air duct structure 10 and a volute structure 20, wherein the air duct structure 10 has a ventilation cavity and an air inlet 11 connected to the ventilation cavity; the volute structure 20 includes a main body 30 and a volute tongue portion 40, wherein the main body 30 has an impeller cavity for accommodating an impeller and a vent 31 connected to the impeller cavity; wherein the main body 30 is detachably arranged in the ventilation cavity of the air duct structure 10, and the vent 31 and the air inlet 11 are correspondingly arranged; the volute tongue portion 40 is detachably connected to the main body 30, and the volute tongue portion 40 and a part of the structure of the main body 30 constitute an air outlet channel 35, and the air outlet channel 35 is connected to the impeller cavity. With this solution, since the volute tongue portion 40 is detachably arranged on the main body portion 30, when the air duct experimental test fails to meet the standard, a new volute tongue portion 40 can be redesigned for installation, so that the adaptability of the air duct component is enhanced and it is convenient to change; and since the volute structure 20 is detachably arranged in the air duct structure 10, the air duct component can be borrowed into other products, especially when the air duct structure 10 does not need to be changed, only the volute structure 20 needs to be changed and installed in the air duct structure 10 for use. Therefore, the air duct structure 10 has strong versatility, can meet the needs of repeated use, and is convenient to change and replace the local structure, reducing the production cost and production cycle.

[0034] In this embodiment, the main body 30 includes a bottom plate 32 and a surrounding plate 33 arranged on the bottom plate 32, the vent 31 is arranged on the bottom plate 32, the surrounding plate 33 is arranged around the vent 31, and the bottom plate 32 is detachably arranged on the air duct structure 10; the volute tongue portion 40 includes a volute tongue 41, a side plate 42 and a connecting plate 43, the connecting plate 43 is arranged on the side plate 42, the first end of the volute tongue 41 is connected to the side plate 42, and the second end of the volute tongue 41 is matched with one end of the surrounding plate 33; the area between the bottom plate 32, the surrounding plate 33, the volute tongue 41 and the side plate 42 forms an impeller cavity and an air outlet channel 35; the connecting plate 43 is connected to the bottom plate 32 and / or the air duct structure 10. Through the above arrangement, it is convenient to form the impeller cavity and the air outlet channel 35, and it is convenient to realize the disassembly of the volute tongue portion 40 and the matching with the main body 30.

[0035] In this embodiment, the second end of the volute tongue 41 has a first step 44, and one end of the shroud 33 has a second step, the second step is connected with the first step 44, and the surface of the shroud 33 facing the impeller cavity is flush with the surface of the volute tongue 41 facing the impeller cavity. The cooperation of the first step and the second step can ensure the sealing of the shroud 33 and the volute tongue 41 at the connection to avoid air leakage, and the surface of the shroud 33 facing the impeller cavity is flush with the surface of the volute tongue 41 facing the impeller cavity, which can avoid wind resistance at the connection and ensure smooth flow of wind.

[0036] In this embodiment, the connecting plate 43 can be connected to the bottom plate 32, the connecting plate 43 has an assembly hole 45, and the bottom plate 32 is provided with a plug connector 34, and the plug connector 34 is connected with the assembly hole 45. In this way, the connecting plate 43 and the bottom plate 32 can be reliably connected by plug-in matching.

[0037] Alternatively, the connecting plate 43 can be connected to the air duct structure 10, the connecting plate 43 has an assembly hole 45, and the air duct structure 10 is provided with a plug connector 34, and the plug connector 34 is connected with the assembly hole 45. In this way, the connecting plate 43 and the air duct structure 10 can be reliably connected by plug-in matching.

[0038] Optionally, there are multiple assembly holes 45 and multiple connectors 34, and the multiple assembly holes 45 and the multiple connectors 34 are arranged in a one-to-one correspondence, which can improve the connection reliability.

[0039] In this embodiment, there is an angle between the side plate 42 and the bottom plate 32, and the angle range of the angle between the side plate 42 and the bottom plate 32 is 78° to 85°. The specific angle setting can be selected as needed to improve the wind guide effect and meet the use requirements. Optionally, the connecting plate 43 is arranged parallel to the bottom plate 32 to increase the contact area and connection strength. In this embodiment, the volute tongue 41 is an inclined volute tongue.

[0040] In this embodiment, the main body 30 is an integrally formed structure, and the volute tongue 40 is an integrally formed structure. This is convenient for manufacturing and has high structural strength. For example, the main body 30 is made of plastic material or foam material, and the volute tongue 40 is made of plastic material or foam material.

[0041] Optionally, a plurality of volute tongues 40 are provided on the main body 30 in the volute structure 20, and a plurality of air outlet channels 35 with different directions can be formed by cooperation between the plurality of volute tongues 40 and the main body 30 to achieve air outlet in different directions.

[0042] In the present embodiment, the air duct structure 10 includes a shell portion 12 and a cover portion 13 which are detachably connected, and an air inlet 11 is provided on both the shell portion 12 and the cover portion 13. The volute structure 20 is located in the ventilation cavity between the shell portion 12 and the cover portion 13, and the bottom plate 32 is detachably connected to the shell portion 12. The above arrangement facilitates the assembly and disassembly of the air duct structure 10 and the assembly and disassembly of the volute structure 20 on the air duct structure 10, thereby improving the versatility of the air duct components. Since the volute structure 20 is detachably arranged in the air duct structure 10, when the air duct structure 10 does not need to be modified, it is only necessary to change the volute structure 20 and install it in the air duct structure 10 for use. Therefore, the air duct structure 10 has strong versatility, can meet the needs of repeated use, and is convenient for changing and replacing local structures, reducing production costs and production cycles.

[0043] Optionally, the shell body 12 and the cover body 13 are integrally formed of injection molding material, which is easy to manufacture and has high structural strength.

[0044] Specifically, the housing 12 includes: a housing 14, the housing 14 has an air inlet 11, the main body 30 is detachably connected to the housing 14; a limit plate 15, which is arranged on the housing 14, the limit plate 15 is arranged around the air inlet 11, the shape of the limit plate 15 matches the shape of the surrounding plate 33, and the limit plate 15 is limitedly matched with the side of the surrounding plate 33 away from the impeller chamber. Through the above arrangement, the positioning and assembly of the volute structure 20 are facilitated, so that the volute structure 20 is convenient to replace. Specifically, the bottom plate 32 of the main body 30 is bonded to the housing 14.

[0045] In the second embodiment of the present invention, different from the above embodiment, the air duct component includes a plurality of volute structures 20, and the plurality of volute structures 20 are distributed in the ventilation cavity of the air duct structure 10. By providing a plurality of volute structures 20, the ventilation capacity and heat exchange effect of the air duct component can be improved, thereby improving the user experience. In this embodiment, each volute structure 20 cooperates with two opposite air inlets 11. The air duct structure 10 has a plurality of air outlets, and each volute structure 20 is connected to at least one air outlet.

[0046] In the present embodiment, the air duct structure 10 has a first air outlet 16, a second air outlet 17 and a third air outlet 18 which are arranged in sequence, and the air duct component includes two volute structures 20, which are respectively the first volute structure 20 and the second volute structure 20, the first volute structure 20 is located between the first air outlet 16 and the second air outlet 17, and the second volute structure 20 is located between the second air outlet 17 and the third air outlet 18; the first volute structure 20 includes a volute tongue portion 40, and an air outlet channel 35 between the volute tongue portion 40 and the main body 30 is connected to the first air outlet 16; the second volute structure 20 includes two volute tongue portions 40, and the two volute tongue portions 40 are spaced apart on the main body 30 to form two air outlet channels 35, and the air outlet directions of the two air outlet channels 35 are different, wherein one air outlet channel 35 is connected to the second air outlet 17, and the other air outlet channel 35 is connected to the third air outlet 18. Through the above arrangement, it is possible to discharge air from different positions of the air duct structure 10 , thus enriching the functions of the air duct structure 10 .

[0047] Optionally, the first air outlet 16 is located at the upper end of the duct structure 10, the second air outlet 17 is located in the middle of the duct structure 10, and the third air outlet 18 is located at the lower end of the duct structure 10. The first air outlet 16 and the second air outlet 17 both discharge air upward, and the third air outlet 18 discharges air downward.

[0048] Another embodiment of the present invention provides an air conditioner, which includes the above-mentioned air duct component. The air duct component includes an air duct structure 10 and a volute structure 20. With this solution, since the volute tongue portion 40 is detachably arranged on the main body 30, when the air duct experimental test does not meet the standard, a new volute tongue portion 40 can be redesigned for installation, so that the adaptability of the air duct component is enhanced and it is convenient to change; and since the volute structure 20 is detachably arranged in the air duct structure 10, the air duct component can be borrowed into other products, especially when the air duct structure 10 does not need to be changed, only the volute structure 20 needs to be changed and installed in the air duct structure 10 for use. Therefore, the air duct structure 10 has strong versatility, can meet the needs of reuse, and is convenient to change and replace local structures, reducing production costs and production cycles. When the experimental test of the air duct does not meet the standard, the solution of the internal volute structure 20 can be adjusted according to the test index, and then the new volute structure 20 can be redesigned and installed in the air duct structure 10 to replace the old volute structure 20, which is convenient for change.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air duct component, characterized in that: include: An air duct structure (10), the air duct structure (10) comprising a ventilation cavity and an air inlet (11) communicating with the ventilation cavity; A volute structure (20), the volute structure (20) comprising a main body (30) and a volute tongue (40), the main body (30) having an impeller cavity for accommodating an impeller and a vent (31) communicating with the impeller cavity; The main body (30) is detachably arranged in the ventilation cavity of the air duct structure (10), and the ventilation port (31) and the air inlet (11) are arranged correspondingly; the volute tongue portion (40) is detachably connected to the main body (30), and the volute tongue portion (40) and a part of the structure of the main body (30) form an air outlet channel (35), and the air outlet channel (35) is connected to the impeller cavity; The main body (30) comprises a bottom plate (32) and a surrounding plate (33) arranged on the bottom plate (32); the vent (31) is arranged on the bottom plate (32); the surrounding plate (33) is arranged around the vent (31); and the bottom plate (32) is detachably arranged on the air duct structure (10); The volute tongue portion (40) comprises a volute tongue (41), a side plate (42) and a connecting plate (43); the connecting plate (43) is arranged on the side plate (42); a first end of the volute tongue (41) is connected to the side plate (42); a second end of the volute tongue (41) is matched with one end of the enclosure plate (33); an area between the bottom plate (32), the enclosure plate (33), the volute tongue (41) and the side plate (42) forms the impeller cavity and the air outlet channel (35); the connecting plate (43) is connected to the bottom plate (32) and / or the air duct structure (10); The air duct structure (10) comprises a shell part (12) and a cover part (13) which are detachably connected, the shell part (12) and the cover part (13) are both provided with the air inlet (11), the volute structure (20) is located in the ventilation cavity between the shell part (12) and the cover part (13), and the bottom plate (32) is detachably connected to the shell part (12).

2. The air duct component according to claim 1, characterized in that: The second end of the volute tongue (41) has a first step (44), one end of the enclosure (33) has a second step, the second step is cooperatively connected with the first step (44), and the surface of the enclosure (33) facing the impeller cavity is flush with the surface of the volute tongue (41) facing the impeller cavity.

3. The air duct component according to claim 1, characterized in that: The connecting plate (43) is connected to the bottom plate (32), the connecting plate (43) has an assembly hole (45), a plug-in connector (34) is provided on the bottom plate (32), and the plug-in connector (34) is matched and connected to the assembly hole (45).

4. The air duct component according to claim 1, characterized in that: The connecting plate (43) is connected to the air duct structure (10), the connecting plate (43) has an assembly hole (45), a plug-in connector (34) is provided on the air duct structure (10), and the plug-in connector (34) is connected in a matching manner to the assembly hole (45).

5. The air duct component according to claim 1, characterized in that: An included angle is formed between the side plate (42) and the bottom plate (32), and the included angle between the side plate (42) and the bottom plate (32) is in the range of 78° to 85°.

6. The air duct component according to claim 1, characterized in that: The main body (30) is an integrally formed structure, and the volute tongue (40) is an integrally formed structure.

7. The air duct component according to claim 1, characterized in that: The housing portion (12) comprises: A housing (14), the housing (14) having the air inlet (11), the main body (30) being detachably connected to the housing (14); A limit plate (15) is arranged on the housing (14), the limit plate (15) is arranged around the air inlet (11), the shape of the limit plate (15) matches the shape of the enclosure (33), and the limit plate (15) is in position-limiting cooperation with a side of the enclosure (33) facing away from the impeller chamber.

8. The air duct component according to any one of claims 1 to 7, characterized in that: The air duct component comprises a plurality of volute structures (20), and the plurality of volute structures (20) are distributed in the ventilation cavity of the air duct structure (10).

9. The air duct component according to claim 8, characterized in that: The air duct structure (10) has a first air outlet (16), a second air outlet (17) and a third air outlet (18) which are arranged in sequence, and the air duct component comprises two volute structures (20), the two volute structures (20) are respectively a first volute structure (20) and a second volute structure (20), the first volute structure (20) is located between the first air outlet (16) and the second air outlet (17), and the second volute structure (20) is located between the second air outlet (17) and the third air outlet (18); The first volute structure (20) comprises a volute tongue portion (40), and an air outlet channel (35) between the volute tongue portion (40) and the main body portion (30) is connected to the first air outlet (16); The second volute structure (20) comprises two volute tongue portions (40), the two volute tongue portions (40) being arranged at intervals on the main body portion (30) to form two air outlet channels (35), the two air outlet channels (35) having different air outlet directions, wherein one of the air outlet channels (35) is connected to the second air outlet (17), and the other of the air outlet channels (35) is connected to the third air outlet (18).

10. An air conditioner, characterized in that: The air conditioner comprises the air duct component according to any one of claims 1 to 9.

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