Air duct structure and vehicle

Abstract

This disclosure relates to the field of vehicle parts technology, and more particularly to a duct structure and a vehicle. The duct structure includes a duct housing and a sound-absorbing housing. A duct is formed within the duct housing. The sound-absorbing housing includes a first sound-absorbing housing and a second sound-absorbing housing. The first sound-absorbing housing is connected to the duct housing and forms a first resonant cavity with it. The second sound-absorbing housing is connected to the duct housing and forms a second resonant cavity with it. The duct housing has multiple air holes corresponding to both the first and second resonant cavities. By setting up the first and second sound-absorbing housings, a first resonant cavity is formed between the first and duct housings, and a second resonant cavity is formed between the second and duct housings. The air holes, the first resonant cavity, and the second resonant cavity are used to mitigate the rapid airflow within the duct, thereby reducing noise and improving the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle parts technology, and in particular to a duct structure and a vehicle. Background Technology

[0002] With the increasing popularity of vehicles, people have higher and higher requirements for the comfort of vehicle rides. In cars, air conditioning is the most frequently used electrical device. However, the current air duct structure is conventionally blow-molded, which has almost no noise reduction capability. When airflow passes through, it is easy to generate mid-to-high frequency noise, resulting in a poor user experience.

[0003] Therefore, there is an urgent need for a duct structure and vehicle to solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides a duct structure and a vehicle.

[0005] In a first aspect, this disclosure provides a duct structure, including a duct shell and a sound-absorbing shell. A duct is formed inside the duct shell. The sound-absorbing shell includes a first sound-absorbing shell and a second sound-absorbing shell. The first sound-absorbing shell is connected to the duct shell and forms a first resonant cavity with the duct shell. The second sound-absorbing shell is connected to the duct shell and forms a second resonant cavity with the duct shell. The duct shell has multiple air holes in portions corresponding to the first resonant cavity and the second resonant cavity.

[0006] Optionally, the duct housing includes a first duct housing and a second duct housing connected to each other, wherein the first silencing housing is connected to the first duct housing and the second silencing housing is connected to the second duct housing.

[0007] Optionally, the first air duct housing includes a first part and a second part connected to each other. The first part has an annular structure and forms a first air duct. The second air duct housing is connected to the first part and the second part. The second air duct housing and the second part form a second air duct. The first air duct and the second air duct are connected to each other.

[0008] Optionally, the second air duct housing includes a third part and a fourth part connected to each other. The third part is connected to the first part and the second part and forms a second air duct between the third part and the second part. The fourth part has an annular structure and forms a third air duct. The first air duct, the second air duct and the third air duct constitute the air duct.

[0009] Optionally, both the first air duct housing and the second air duct housing are provided with first connecting ribs extending outward on both sides in the air duct width direction, and the first connecting rib of the first air duct housing is connected to the first connecting rib of the second air duct housing.

[0010] Optionally, the first silencing housing is provided with second connecting ribs on both sides of the air duct width direction, wherein one second connecting rib is connected to the first connecting rib of the first air duct housing, and the other second connecting rib is connected to the first air duct housing.

[0011] Optionally, the second silencing housing is provided with third connecting ribs on both sides of the duct width direction, and the two third connecting ribs are respectively connected to the two first connecting ribs on the second duct housing.

[0012] Optionally, the first air duct housing is provided with a first mounting plate and a second mounting plate at intervals in the air duct extension direction, and both the first mounting plate and the second mounting plate are provided with fastening holes.

[0013] Optionally, the duct housing, the first silencer housing, and the second silencer housing are all injection molded.

[0014] Optionally, multiple first resonant cavities are provided, and the multiple first resonant cavities are spaced apart; multiple second resonant cavities are provided, and the multiple second resonant cavities are spaced apart.

[0015] Secondly, this disclosure provides a vehicle including the air duct structure provided in the first aspect.

[0016] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0017] By setting up a first silencing shell and a second silencing shell, the first silencing shell is connected to the air duct shell and the two form a first resonant cavity, and the second silencing shell is connected to the air duct shell and the two form a second resonant cavity. The air duct shell has multiple air holes in the parts corresponding to the first and second resonant cavities. The air holes, the first resonant cavity and the second resonant cavity are used to alleviate the rapid airflow in the air duct, thereby playing a role in noise reduction and improving the user experience. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the air duct structure provided in an embodiment of the present disclosure;

[0021] Figure 2 This is a partial structural diagram of the air duct structure provided in an embodiment of the present disclosure;

[0022] Figure 3 This is a top view of the air duct structure provided in an embodiment of the present disclosure;

[0023] Figure 4 for Figure 3 Schematic sectional view along the middle AA direction;

[0024] Figure 5 for Figure 3 Schematic sectional view along the middle BB direction.

[0025] Figure label:

[0026] 1. Duct housing; 11. First duct housing; 111. First part; 112. Second part; 12. Second duct housing; 121. Third part; 122. Fourth part; 13. First connecting rib; 14. First mounting plate; 15. Second mounting plate; 16. Air hole;

[0027] 10. Air duct; 101. First air duct; 102. Second air duct; 103. Third air duct;

[0028] 2. First silencing shell; 21. Second connecting rib; 20. First resonant cavity;

[0029] 3. Second silencing shell; 31. Third connecting rib; 30. Second resonant cavity. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0032] like Figures 1 to 5As shown, this disclosure provides a duct structure, including a duct shell 1 and a sound-absorbing shell. A duct 10 is formed inside the duct shell 1. The sound-absorbing shell includes a first sound-absorbing shell 2 and a second sound-absorbing shell 3. The first sound-absorbing shell 2 is connected to the duct shell 1 and forms a first resonant cavity 20 between the two. The second sound-absorbing shell 3 is connected to the duct shell 1 and forms a second resonant cavity 30 between the two. The duct shell 1 has multiple air holes 16 in the portions corresponding to the first resonant cavity 20 and the second resonant cavity 30.

[0033] It is understandable that by setting a first silencing shell 2 and a second silencing shell 3, the first silencing shell 2 is connected to the air duct shell 1 and a first resonant cavity 20 is formed between the two, and the second silencing shell 3 is connected to the air duct shell 1 and a second resonant cavity 30 is formed between the two. The air duct shell 1 has multiple air holes 16 in the parts corresponding to the first resonant cavity 20 and the second resonant cavity 30. The air holes 16, the first resonant cavity 20 and the second resonant cavity 30 are used to alleviate the rapid airflow in the air duct 10, thereby playing a role in noise reduction and improving the user experience.

[0034] like Figure 1 As shown, the duct housing 1 includes a first duct housing 11 and a second duct housing 12 connected to each other. A first silencing housing 2 is connected to the first duct housing 11, and a second silencing housing 3 is connected to the second duct housing 12. By separately configuring the first duct housing 11 and the second duct housing 12, the arrangement and opening of the air vents 16 are facilitated. The aforementioned duct 10 is formed between the first duct housing 11 and the second duct housing 12.

[0035] like Figure 2 As shown, the first air duct housing 1 is provided with a first mounting plate 14 and a second mounting plate 15 at intervals along the extension direction of the air duct 10. Both the first mounting plate 14 and the second mounting plate 15 are provided with fastening holes. The installation of the air duct structure is facilitated by providing the first mounting plate 14 and the second mounting plate 15.

[0036] Furthermore, there are two second mounting plates 15, which are located on both sides of the first air duct housing 1 in the width direction of the air duct 10.

[0037] Furthermore, the aforementioned duct housing 1, first silencing housing 2, and second silencing housing 3 are all injection molded. Additionally, the first duct housing 11 and second duct housing 12 are also injection molded. Injection molding offers high production efficiency and precise product dimensions. Moreover, since the first duct housing 11, second duct housing 12, first silencing housing 2, and second silencing housing 3 are all individually injection molded, adjustments to the structure of one component can be made without considering other components. Compared to integral blow molding or injection molding, this saves costs and facilitates fine-tuning of the structure of a specific component.

[0038] The first mounting plate 14 and the second mounting plate 15 are integrally injection molded with the first air duct housing 11, which can improve the overall structural strength of the first air duct housing 11 and thus improve the installation stability of the air duct structure.

[0039] like Figure 3 and Figure 4 As shown, the first air duct housing 11 includes a first part 111 and a second part 112 connected to each other. The first part 111 has an annular structure and forms a first air duct 101. The second air duct housing 12 is connected to the first part 111 and the second part 112. The second air duct housing 12 and the second part 112 form a second air duct 102. The first air duct 101 and the second air duct 102 are connected.

[0040] Furthermore, the second air duct housing 12 includes a third part 121 and a fourth part 122 connected to each other. The third part 121 is connected to the first part 111 and the second part 112, and a second air duct 102 is formed between it and the second part 112. The fourth part 122 has an annular structure and a third air duct 103 is formed therein. The first air duct 101, the second air duct 102 and the third air duct 103 constitute the aforementioned air duct 10.

[0041] It is understandable that the first air duct 101 is formed separately by the first air duct housing 11, and the second air duct 102 is formed separately by the second air duct housing 12. The regular shape facilitates the plug-in connection with other parts of the vehicle, and avoids the irregular shape formed by the connection of the first air duct housing 11 and the second air duct housing 12, which would affect the plug-in connection.

[0042] Optionally, refer again Figure 4 The aforementioned air inlet is formed by the first air duct housing 11, which is the inlet of the first air duct 101. The aforementioned air outlet is formed by the second air duct housing 12, which is the outlet of the third air duct 103. The cross-sectional area of ​​the air outlet is larger than that of the air inlet, which helps to reduce airflow velocity and noise.

[0043] like Figure 3 and Figure 5 As shown, the first air duct housing 11 and the second air duct housing 12 are provided with first connecting ribs 13 on both sides of the width direction of the air duct 10, and the first connecting ribs 13 of the first air duct housing 11 are connected to the first connecting ribs 13 of the second air duct housing 12.

[0044] By setting the first connecting rib 13, the structural strength of the first air duct shell 11 and the second air duct shell 12 can be improved, thereby improving the structural strength of the air duct shell 1.

[0045] Furthermore, the first connecting rib 13 of the first air duct shell 11 and the first connecting rib 13 of the second air duct shell 12 are connected by welding, resulting in a stable connection and good sealing performance.

[0046] Refer again Figure 5 The first silencing housing 2 has second connecting ribs 21 on both sides of the air duct 10 in the width direction. One second connecting rib 21 is connected to the first connecting rib 13 of the first air duct housing 11, and the other second connecting rib 21 is connected to the first air duct housing 11. The second connecting ribs 21 can improve the connection stability between the first silencing housing 2 and the first air duct housing 11.

[0047] In addition, the connection between the second connecting rib 21 and the first connecting rib 13 or the first air duct shell 11 is a welded connection, which is stable and has good sealing performance.

[0048] Furthermore, the second silencing housing 3 is provided with third connecting ribs 31 on both sides of the air duct 10 in the width direction, and the two third connecting ribs 31 are respectively connected to the two first connecting ribs 13 on the second air duct housing 12. The provision of third connecting ribs 31 can improve the connection stability between the second silencing housing 3 and the second air duct housing 12.

[0049] In addition, the third connecting rib 31 and the first connecting rib 13 are connected by welding, which ensures a stable connection and good sealing.

[0050] Optionally, multiple first resonant cavities 20 are provided, and the multiple first resonant cavities 20 are spaced apart; multiple second resonant cavities 30 are provided, and the multiple second resonant cavities 30 are spaced apart.

[0051] Specifically, the first silencing housing 2 has multiple spaced cavities. When the first silencing housing 2 and the duct housing 1 are connected, the duct housing 1 covers the multiple cavities, forming multiple first resonant cavities 20. A vent 16 is provided on the portion of the duct housing 1 corresponding to each first resonant cavity 20. The second silencing housing 3 has multiple spaced cavities. When the second silencing housing 3 and the duct housing 1 are connected, the duct housing 1 covers the multiple cavities, forming multiple second resonant cavities 30. A vent 16 is provided on the portion of the duct housing 1 corresponding to each second resonant cavity 30.

[0052] For example, three first resonant cavities 20 are formed between the first anechoic housing 2 and the first air duct housing 11, and four second resonant cavities 30 are formed between the second anechoic housing 3 and the second air duct housing 12. The volumes of the three first resonant cavities 20 and the four second resonant cavities 30 are all different. Optionally, the number and volume of the first resonant cavities 20 and the second resonant cavities 30 can be set according to actual needs.

[0053] Furthermore, the aforementioned air vent 16 is a circular hole, and the diameter of the circular hole is preferably 5mm. Optionally, the shape and diameter (equivalent diameter) of the air vent 16 can be set according to actual needs.

[0054] In addition, the number of the aforementioned air vents 16 can be set according to actual needs.

[0055] Based on the same inventive concept and in conjunction with the description of the air duct structure in the above embodiments, this embodiment provides a vehicle that includes the aforementioned air duct structure. This vehicle possesses the corresponding technical effects of the air duct structure in the above embodiments, which will not be elaborated further here.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A duct structure, characterized in that, The device includes a duct housing and a sound-absorbing housing. A duct is formed inside the duct housing. The sound-absorbing housing includes a first sound-absorbing housing and a second sound-absorbing housing. The first sound-absorbing housing is connected to the duct housing and forms a first resonant cavity between them. The second sound-absorbing housing is connected to the duct housing and forms a second resonant cavity between them. The duct housing has multiple air holes in the portions corresponding to the first and second resonant cavities. Multiple first resonant cavities are provided, and the multiple first resonant cavities are spaced apart; Multiple second resonant cavities are provided, and the multiple second resonant cavities are spaced apart; The volumes of the multiple first resonant cavities are all different, and the volumes of the multiple second resonant cavities are all different; The first silencing housing has multiple spaced cavities. The first silencing housing and the air duct housing are connected. The air duct housing covers the multiple cavities to form multiple first resonant cavities. The duct housing includes a first duct housing and a second duct housing connected to each other. The first duct housing and the second duct housing are provided with first connecting ribs extending outward on both sides in the duct width direction. The first connecting rib of the first duct housing is connected to the first connecting rib of the second duct housing. The first silencing housing is provided with second connecting ribs on both sides in the duct width direction, wherein one of the second connecting ribs is connected to the first connecting rib of the first duct housing. The second silencing housing is provided with third connecting ribs on both sides in the duct width direction, and the two third connecting ribs are respectively connected to the two first connecting ribs on the second duct housing.

2. The air duct structure according to claim 1, characterized in that, The first air duct housing includes a first part and a second part connected to each other. The first part is an annular structure and forms a first air duct. The second air duct housing is connected to the first part and the second part. The second air duct housing and the second part form a second air duct. The first air duct and the second air duct are connected.

3. The air duct structure according to claim 2, characterized in that, The second air duct housing includes a third part and a fourth part connected to each other. The third part is connected to the first part and the second part and forms a second air duct between the third part and the second part. The fourth part is an annular structure and forms a third air duct. The first air duct, the second air duct and the third air duct constitute the air duct.

4. The air duct structure according to claim 1, characterized in that, Another second connecting rib is connected to the first air duct shell.

5. The air duct structure according to claim 1, characterized in that, The first air duct housing is provided with a first mounting plate and a second mounting plate at intervals in the air duct extension direction, and both the first mounting plate and the second mounting plate are provided with fastening holes.

6. The air duct structure according to claim 1, characterized in that, The air duct housing, the first sound-absorbing housing, and the second sound-absorbing housing are all injection molded.

7. A vehicle, characterized in that, Includes the air duct structure as described in any one of claims 1-6.

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