Vehicle ventilation structure and vehicle

Abstract

The application discloses a vehicle ventilation structure and a vehicle, and belongs to the technical field of vehicles. The vehicle ventilation structure comprises a ventilation frame, a first cover body and a second cover body. The first cover body is arranged on the side of the ventilation frame close to the vehicle interior, and a first air inlet is formed in the first cover body. The second cover body is arranged on the side of the ventilation frame close to the vehicle exterior, and a second air inlet is formed in the second cover body. The ventilation frame, the first cover body and the second cover body jointly define a through air passage. The air passage defined by the ventilation frame, the first cover body and the second cover body is used for realizing air exchange between the vehicle interior and the vehicle exterior. When external noise enters through the second cover body, the second cover body firstly reflects the incident noise and attenuates the energy of the noise. The ventilation frame and the first cover body jointly form a composite acoustic barrier, and the sound wave is further weakened through secondary reflection and resonance effect. The multiple acoustic blocking design from the outside to the inside can destroy the propagation path of the sound wave and weaken the noise transmitted through the air passage.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle ventilation structure and a vehicle. Background Technology

[0002] While the vehicle's ventilation system facilitates air circulation within the vehicle, it also creates a pathway for external noise to enter the cabin. Road noise and wind noise, in particular, can easily penetrate directly into the passenger compartment through the ventilation frame and the airflow channels it forms, severely disrupting the quietness of the passenger space.

[0003] In related technologies, vehicles commonly employ a ventilation frame structure with an integrated grille to balance ventilation and basic protection. However, this type of grille design still has significant limitations in noise control. While the grille can initially regulate airflow, it cannot effectively block sound wave propagation. Road rumble and wind vibration noise can still clearly enter the vehicle interior along the acoustic channels formed by the grille gaps, making it difficult to achieve good noise isolation performance. Utility Model Content

[0004] This application provides a vehicle ventilation structure and a vehicle to at least partially solve the problem of insufficient noise insulation capability of the vehicle ventilation structure.

[0005] To achieve the above objectives, according to a first aspect of this application, a vehicle ventilation structure is provided, the vehicle ventilation structure comprising: Ventilation frame; The first cover is located on the side of the ventilation frame closer to the vehicle interior, and the first cover has a first air vent. The second cover is located on the side of the ventilation frame closer to the outside of the vehicle, and a second air vent is provided on the second cover; The ventilation frame, the first cover, and the second cover together define a through air passage.

[0006] In some embodiments, a sound-absorbing layer is affixed to the first cover and / or the second cover.

[0007] In some embodiments, the thickness of the sound-absorbing layer is 5-10 mm; the sound-absorbing layer is attached to the inner wall of the first cover and / or the inner wall of the second cover.

[0008] In some embodiments, the first cover includes a first panel facing the interior of the vehicle, and at least a portion of the first panel protrudes inward toward the interior of the vehicle to form a guide portion; The second cover includes a second panel facing outwards from the vehicle, and the second panel has a flat panel structure.

[0009] In some embodiments, the surface of the second cover near the outside of the vehicle is provided with reinforcing ribs.

[0010] In some embodiments, the projection of the first air vent onto the plane of the ventilation frame and the projection of the second air vent onto the plane of the ventilation frame at least partially coincide.

[0011] In some embodiments, the ventilation frame includes a frame body and a plurality of grids, the plurality of grids being disposed at intervals within the frame body.

[0012] In some embodiments, the first cover and the second cover are respectively snapped into the frame.

[0013] In some embodiments, sealing strips are provided at the connection points between the first cover and the frame, and at the connection points between the second cover and the frame.

[0014] Secondly, this application provides a vehicle including the vehicle ventilation structure provided in the first aspect of this application.

[0015] In the vehicle ventilation structure of this application embodiment, air exchange between the vehicle interior and exterior is achieved through the air passage defined by the ventilation frame, the first cover, and the second cover. When external noise enters through the second cover, the second cover reflects the incident noise for the first time, attenuating its energy. The ventilation frame and the first cover together form a composite acoustic barrier, which further weakens the sound waves through secondary reflection and resonance effects. This multi-layered acoustic blocking design from the outside in can disrupt the propagation path of sound waves and weaken the noise transmitted through the air passage.

[0016] The vehicle in this application embodiment has all the beneficial effects of the above-described vehicle ventilation structure, which will not be repeated here.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0019] Figure 1 This is a schematic diagram of the overall structure of the vehicle ventilation structure provided in some embodiments of this application; Figure 2This is an exploded view of the vehicle ventilation structure provided in some embodiments of this application; Figure 3 This is a structural schematic diagram of the ventilation frame provided in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of the first cover provided in some embodiments of this application; Figure 5 This is a schematic diagram of the structure of the second cover provided in some embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Ventilation frame; 11. Frame body; 12. Grid; 2. First enclosure; 21. First air vent; 22. First panel; 23. Airflow guide 3. Second enclosure; 31. Second air vent; 32. Second panel; 33. Reinforcing rib; 4. Sound-absorbing layer. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0022] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] While the vehicle's ventilation system facilitates air circulation within the vehicle, it also creates a pathway for external noise to enter the cabin. Road noise and wind noise, in particular, can easily penetrate directly into the passenger compartment through the ventilation frame and the airflow channels it forms, severely disrupting the quietness of the passenger space.

[0026] In related technologies, vehicles commonly employ a ventilation frame structure with an integrated grille to balance ventilation and basic protection. However, this type of grille design still has significant limitations in noise control. While the grille can initially regulate airflow, it cannot effectively block sound wave propagation. Road rumble and wind vibration noise can still clearly enter the vehicle interior along the acoustic channels formed by the grille gaps, making it difficult to achieve good noise isolation performance.

[0027] To improve noise reduction, some solutions improve acoustic performance by adding complex structures or sound-absorbing materials. However, this often leads to increased manufacturing costs, structural complexity, and increased ventilation resistance. Ultimately, it is difficult to achieve excellent noise isolation performance while ensuring ventilation efficiency, making ventilation and noise reduction an irreconcilable contradiction.

[0028] Firstly, this application provides a vehicle ventilation structure, please refer to... Figure 1 and Figure 2The vehicle ventilation structure includes a ventilation frame 1, and a first cover 2 and a second cover 3 respectively disposed on both sides of the ventilation frame 1; the first cover 2 is disposed on the side of the ventilation frame 1 closer to the inside of the vehicle, and a first air vent 21 is provided on the first cover 2; the second cover 3 is disposed on the side of the ventilation frame 1 closer to the outside of the vehicle, and a second air vent 31 is provided on the second cover 3; wherein, the ventilation frame 1, the first cover 2 and the second cover 3 together define a through air passage.

[0029] In this implementation, air exchange between the vehicle interior and exterior is achieved through the air passage defined by the ventilation frame 1, the first cover 2, and the second cover 3. When external noise enters through the second cover 3, the second cover 3 reflects the incident noise for the first time, attenuating its energy. The ventilation frame 1 and the first cover 2 together form a composite acoustic barrier, which further weakens the sound waves through secondary reflection and resonance effects. This multi-layered acoustic blocking design from the outside in can disrupt the propagation path of sound waves and weaken the noise transmitted through the air passage.

[0030] In some embodiments, a sound-absorbing layer 4 is affixed to the first cover 2 and / or the second cover 3. The sound-absorbing layer 4 can dissipate and absorb residual sound energy, further improving the noise reduction effect.

[0031] For example, the sound-absorbing layer 4 is only attached to the inner wall of the first enclosure 2. The sound-absorbing layer 4 is arranged at the last barrier for noise to enter the vehicle, which can efficiently absorb residual noise transmitted through the air passage, achieving a better balance between noise reduction effect and material cost.

[0032] For example, the sound-absorbing layer 4 is only attached to the inner wall of the second enclosure 3. The sound-absorbing layer 4 is arranged at the source of noise to perform initial absorption and blocking, and is particularly suitable for scenarios where mid-to-high frequency noise needs to be reduced.

[0033] For example, the inner walls of both the first enclosure 2 and the second enclosure 3 are covered with sound-absorbing layers 4. The sound-absorbing layers 4 perform initial sound absorption and noise reduction on the outer second enclosure 3, and then perform secondary deep absorption on the inner first enclosure 2, forming a dual noise reduction system that works in concert, which can achieve maximum isolation and attenuation of broadband noise.

[0034] Understandably, the placement and coverage of the sound-absorbing layer 4 can be optimized and adjusted according to specific acoustic design and cost targets. Regarding placement, the sound-absorbing layer 4 can be attached to the inner and / or outer walls of the enclosure. Attaching it to the inner wall (facing the airflow passage) allows the sound-absorbing material to directly absorb noise propagating within the passage, resulting in higher acoustic efficiency; while attaching it to the outer wall facilitates the installation and replacement of the sound-absorbing layer 4. Regarding coverage, the sound-absorbing layer 4 can be partially or fully attached. Partial attachment to key acoustic areas ensures basic noise reduction while saving materials and optimizing costs; while full attachment maximizes the sound-absorbing area, achieving more thorough noise suppression.

[0035] For example, the sound-absorbing layer 4 is composed of sound-absorbing cotton, and the thickness of the sound-absorbing layer 4 is 5~10mm. When the sound-absorbing layer 4 is within this thickness range, it can achieve relatively efficient absorption of noise in the target frequency band with relatively small material and space costs.

[0036] In some embodiments, see Figure 4 The first cover 2 includes a first panel 22 and multiple first side panels extending from the periphery of the first panel 22 to the ventilation frame 1. The first side panels are connected to the ventilation frame 1, thereby realizing the connection between the first cover 2 and the ventilation frame 1.

[0037] For example, at least a portion of the first panel 22 protrudes towards the interior of the vehicle to form a guide section 23; in the air intake condition, the guide section 23 can more smoothly and evenly diffuse the external airflow into the vehicle interior, effectively reducing the secondary noise generated by local high-speed airflow; in the air exhaust condition, the guide section 23 expands the inlet area of ​​the air passage, allowing the air inside the vehicle to be discharged more smoothly and reducing ventilation resistance.

[0038] For example, all peripheries of the first panel 22 are provided with first side panels to form a complete enclosure structure, and the first air vent 21 is directly opened on the panel body of the first panel 22.

[0039] For example, the area of ​​the first panel 22 is smaller than the cross-sectional area of ​​the ventilation frame 1, and at least one side of its perimeter is not provided with a first side plate. The area without a first side plate corresponds spatially with the area of ​​the ventilation frame 1 that is not covered by the first panel 22, and together they constitute the first air vent 21.

[0040] It is understandable that the core purpose of the above examples is to ensure that the first enclosure 2 can form an effective first air vent 21. Therefore, regardless of the number and position of the first side panels, as long as they can cooperate with the first panel 22 to achieve this function, they are all equivalent implementations under the design concept of this application.

[0041] In some embodiments, see Figure 5 The second cover 3 includes a second panel 32 facing outwards and multiple second side panels extending from the periphery of the second panel 32 toward the ventilation frame 1. The second side panels are connected to the ventilation frame 1, thereby realizing the connection between the second cover 3 and the ventilation frame 1.

[0042] For example, the second panel 32 has a flat plate structure. The relatively flat outer surface of the second panel 32 can avoid the disadvantage of accumulating impurities, which reduces wind resistance and facilitates cleaning and maintenance.

[0043] For example, the outer surface of the second cover 3 near the vehicle exterior is provided with reinforcing ribs 33. The reinforcing ribs 33 are rib structures formed by stamping and protruding outwards from the vehicle exterior. Multiple reinforcing ribs 33 can be provided, and the multiple reinforcing ribs 33 are arranged in a crisscross pattern to form an integrated reinforcing mesh, thereby significantly improving the structural rigidity and deformation resistance of the second cover 3.

[0044] For example, all peripheries of the second panel 32 are provided with second side panels to form a complete enclosure structure, and the second air vent 31 is directly opened on the panel body of the second panel 32.

[0045] For example, the area of ​​the second panel 32 is smaller than the cross-sectional area of ​​the ventilation frame 1, and at least one side of its perimeter is not provided with a second side plate. The area without a second side plate corresponds spatially with the area of ​​the ventilation frame 1 that is not covered by the second panel 32, and together they constitute the first air vent 21.

[0046] It is understandable that the core purpose of the above examples is to ensure that the second enclosure 3 can form an effective second air vent 31. Therefore, regardless of the number and position of the second side panels, as long as they can cooperate with the second panel 32 to achieve this function, they are all equivalent implementations under the design concept of this application.

[0047] In some embodiments, the projection of the first air vent 21 onto the plane of the ventilation frame 1 at least partially overlaps with the projection of the second air vent 31 onto the plane of the ventilation frame 1. By defining the positions of the first and second outlets, a near-straight-through low-resistance ventilation path is constructed, reducing the turning, contraction, and expansion of airflow within the air passage and improving ventilation efficiency.

[0048] In some embodiments, see Figure 3 The ventilation frame 1 includes a frame body 11 and a plurality of grids 12, which are spaced apart within the frame body 11. The plurality of grids 12 extend obliquely relative to the plane of the frame body 11, and the spacing between them forms a ventilation channel for airflow.

[0049] For example, the first cover 2 and the second cover 3 are respectively snapped into the frame 11. Specifically, the frame 11 has a slot (not shown in the figure), and the first cover 2 and the second cover 3 are respectively provided with a snap-fit ​​part (not shown in the figure) that matches the slot. The reliable connection between the cover and the frame 11 is achieved through the cooperation of the snap-fit ​​part and the slot.

[0050] The specific structure of the slot and the snap-fit ​​part is not limited; any known structure that can achieve quick assembly and reliable snap-fit ​​can be used.

[0051] For example, sealing strips (not shown in the figure) are provided at the connection positions of the first cover 2 and the frame 11, and at the connection positions of the second cover 3 and the frame 11. The sealing strips can prevent rainwater, dust and other pollutants from outside the vehicle from entering, thus improving the environmental sealing performance; in addition, they can suppress wind noise and abnormal vibration of components caused by high-speed airflow passing through the gaps.

[0052] Secondly, embodiments of this application provide a vehicle that includes the aforementioned minimum vehicle ventilation structure, which is installed at the vehicle's ventilation opening. This vehicle possesses all the beneficial effects of the aforementioned vehicle ventilation structure, which will not be elaborated upon further herein.

[0053] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0054] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0055] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A vehicle ventilation structure, characterized in that, The vehicle ventilation structure includes: Ventilation frame (1); The first cover (2) is located on the side of the ventilation frame (1) near the vehicle interior, and the first cover (2) has a first air vent (21). The second cover (3) is located on the side of the ventilation frame (1) near the outside of the vehicle, and a second air vent (31) is provided on the second cover (3). The ventilation frame (1), the first cover (2) and the second cover (3) together define a through air passage.

2. The vehicle ventilation structure according to claim 1, characterized in that, A sound-absorbing layer (4) is attached to the first cover (2) and / or the second cover (3).

3. The vehicle ventilation structure according to claim 2, characterized in that, The thickness of the sound-absorbing layer (4) is 5~10mm; the sound-absorbing layer (4) is attached to the inner wall of the first cover (2) and / or the inner wall of the second cover (3).

4. The vehicle ventilation structure according to claim 1, characterized in that, The first cover (2) includes a first panel (22) facing the interior of the vehicle, and at least a portion of the first panel (22) protrudes inward toward the interior of the vehicle to form a guide portion (23). The second cover (3) includes a second panel (32) facing outwards from the vehicle, and the second panel (32) is a flat panel structure.

5. The vehicle ventilation structure according to claim 1, characterized in that, The second cover (3) has reinforcing ribs (33) on the surface near the outside of the vehicle.

6. The vehicle ventilation structure according to claim 1, characterized in that, The projection of the first air vent (21) on the plane of the ventilation frame (1) at least partially overlaps with the projection of the second air vent (31) on the plane of the ventilation frame (1).

7. The vehicle ventilation structure according to claim 1, characterized in that, The ventilation frame (1) includes a frame (11) and a plurality of grids (12), which are spaced apart within the frame (11).

8. The vehicle ventilation structure according to claim 7, characterized in that, The first cover (2) and the second cover (3) are respectively snapped into the frame (11).

9. The vehicle ventilation structure according to claim 7, characterized in that, Sealing strips are provided at the connection positions of the first cover (2) and the frame (11), as well as at the connection positions of the second cover (3) and the frame (11).

10. A vehicle, characterized in that, Includes the vehicle ventilation structure as described in any one of claims 1 to 9.

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