Automobile cabin cover sealing structure and automobile

Abstract

The embodiment of the utility model provides an automobile engine room cover sealing structure and an automobile, and the automobile engine room cover sealing structure comprises a front engine room cover, a penetrating lamp and a sealing piece; the penetrating lamp is arranged on the side, in the opening and closing direction, of the front cabin cover, and when the front cabin cover is in a closed state, an interval space is formed between the front cabin cover and the penetrating lamp. The sealing piece is used for sealing the interval space; the side, close to the front cabin cover, of the sealing piece is at least provided with a first sealing face and a second sealing face, the first sealing face is located on the front side of the second sealing face in the automobile advancing direction, and when the front cabin cover is in a closed state, the first sealing face and the second sealing face make sealing contact with the front cabin cover. According to the automobile cabin cover sealing structure, wind noise can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile manufacturing, and particularly relates to an automobile engine hood sealing structure and an automobile. Background Art

[0002] In the related art, in order to meet the requirements of the appearance and certain working conditions, some automobiles with through-lights are configured to mate the front engine hood with the through-light by means of crimping. At the same time, in order to prevent the front engine hood from damaging the through-light during the closing process, a sealing strip is generally provided between the front engine hood and the through-light for sealing.

[0003] However, the existing sealing method will cause wind noise with a "hissing" sound at the front end position of the front engine hood during the high-speed driving of the automobile (such as when the vehicle speed is above 90 km / h). As the vehicle speed increases, the "hissing" sound becomes more obvious, and the vehicle occupants can clearly perceive it, which is likely to cause complaints from the occupants. Utility Model Content

[0004] In view of this, an embodiment of the present application expects to provide an automobile engine hood sealing structure and an automobile that can effectively reduce wind noise.

[0005] To achieve the above object, an embodiment of the present application provides an automobile engine hood sealing structure, including:

[0006] A front engine hood;

[0007] A through-light, the through-light is arranged on one side of the front engine hood along the opening and closing direction. When the front engine hood is in the closed state, an interval space is formed between the front engine hood and the through-light;

[0008] A sealing member for sealing the interval space, at least a first sealing surface and a second sealing surface are provided on the side of the sealing member close to the front engine hood. The first sealing surface is located on the front side of the second sealing surface along the forward direction of the automobile. When the front engine hood is in the closed state, the first sealing surface and the second sealing surface are respectively in sealing contact with the front engine hood.

[0009] In one implementation manner, the front engine hood includes a cover body and an intermediate member. The cover body has a folded edge formed by bending in the direction close to the through-light. The folded edge is located on the front side of the cover body along the forward direction of the automobile. The intermediate member is located on the side of the folded edge close to the through-light. When the front engine hood is in the closed state, the first sealing surface is in sealing contact with the intermediate member.

[0010] In one embodiment, the front engine hood includes a cover body, the cover body has a hem formed by bending towards the direction close to the through lamp, the hem is located on the front side of the cover body along the forward direction of the vehicle, and when the front engine hood is in the closed state, the first sealing surface is in sealing contact with the hem.

[0011] In one embodiment, the cover body has a first bent section protruding towards the direction close to the through lamp, the first bent section is located on the rear side of the hem along the forward direction of the vehicle, and the second sealing surface is in sealing contact with the first bent section.

[0012] In one embodiment, the cover body has a second bent section protruding towards the direction away from the through lamp, the second bent section is located between the hem and the first bent section, and is smoothly transitioned with the hem and the first bent section respectively.

[0013] In one embodiment, the second sealing surface has a first edge line and a second edge line, the first edge line is located on the front side of the second edge line along the forward direction of the vehicle, the ground clearance of the first edge line is higher than that of the second edge line, and the second sealing surface is a curved surface protruding towards the direction close to the front engine hood.

[0014] In one embodiment, the first sealing surface is a curved surface protruding towards the direction close to the front engine hood, and the first sealing surface is smoothly transitioned with the second sealing surface.

[0015] In one embodiment, one side of the through lamp close to the front engine hood has a first outer surface, a second outer surface and a limiting surface, the first outer surface is located on the front side of the second outer surface along the forward direction of the vehicle, and the ground clearance of the first outer surface is higher than that of the second outer surface, the limiting surface is connected with the first outer surface and the second outer surface respectively, the sealing member is arranged on the second outer surface and is in sealing contact with the limiting surface.

[0016] In one embodiment, the sealing member has a third sealing surface facing the first outer surface, and the third sealing surface is in sealing contact with the first outer surface at least when the front engine hood is in the closed state.

[0017] In one embodiment, the sealing member is of a hollow structure; and / or,

[0018] The sealing member is in a curved strip shape, the sealing member includes an extruded main body section and two connecting corner sections, and the two connecting corner sections are respectively located at opposite ends of the extruded main body section along the extending direction.

[0019] Another embodiment of the present application provides an automobile, including the automobile engine hood sealing structure described above.

[0020] An embodiment of the present application provides an automobile engine hood sealing structure and an automobile. The seal of the automobile engine hood sealing structure can form seals with the front engine hood at at least two positions in the automobile forward direction when the front engine hood is in the closed state by at least providing a first sealing surface and a second sealing surface on one side close to the front engine hood. This sealing method has good sealing performance, and the seal is not easily deformed towards the rear side in the automobile forward direction under the action of the front engine hood. Therefore, the seal can effectively seal the spaced space formed between the front engine hood and the through lamp, so that high-speed air flow can be well prevented from entering the spaced space to generate wind noise with a "hissing" sound during the high-speed driving of the automobile. Compared with the sealing strip using the related technology, using the seal of the embodiment of the present application can keep the noise frequency inside the vehicle within the range of 2500 Hz - 4800 Hz (including the end point values), and the noise intensity is reduced by at least 2.7 dB, thereby effectively reducing the wind noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional view of an automobile engine hood sealing structure according to an embodiment of the present application;

[0022] Figure 2 is Figure 1 a cross-sectional view of the shown seal.

[0023] DESCRIPTION OF THE REFERENCE NUMERALS

[0024] 10. Front engine hood; 10a. Spaced space; 11. Cover body; 11a. Flange; 11b. First bending section; 11c. Second bending section; 12. Intermediate member; 20. Through lamp; 21a. First outer surface; 21b. Second outer surface; 21c. Limiting surface; 30. Seal; 30a. First sealing surface; 30b. Second sealing surface; 30b1. First edge line; 30b2. Second edge line; 30c. Third sealing surface; 31. Extruded main body section; 32. Connecting corner section; 40. Rubber strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In the description of the embodiments of the present application, it should be noted that the letter F in the drawings represents "automobile forward direction", and the letter H represents "ground clearance". These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the embodiments of the present application. Figure 1

[0026] An embodiment of the present application provides an automobile. Please refer to Figure 1 ​, the vehicle includes a vehicle hood sealing structure.

[0027] Please refer to Figure 1 and Figure 2 , the vehicle hood sealing structure of the embodiment of the present application includes a front hood 10, a through lamp 20, and a seal 30.

[0028] The front hood 10 is also called an engine hood or a bonnet. The front hood 10 is used to cover and protect the engine and other important components in the engine compartment of the vehicle.

[0029] Please continue to refer to Figure 1 , the front hood 10 can be opened and closed. The through lamp 20 is arranged on one side of the front hood 10 along the opening and closing direction. When the front hood 10 is in the closed state, an interval space 10a is formed between the front hood 10 and the through lamp 20.

[0030] That is to say, when the front hood 10 is in the closed state, a part of the front hood 10 faces the through lamp 20, and the part of the front hood 10 facing the through lamp 20 is spaced from the through lamp 20, thereby forming an interval space 10a between the front hood 10 and the through lamp 20.

[0031] The seal 30 is used to seal the interval space 10a. That is to say, when the front hood 10 is in the closed state, the seal 30 is located in the interval space 10a, and the seal 30 generates a certain elastic deformation to seal the interval space 10a.

[0032] The seal 30 can be fixed on the through lamp 20. For example, Figure 1 the shown seal 30 is adhered to the through lamp 20 by an adhesive strip 40. In some other embodiments, the seal 30 can also be fixed on the through lamp 20 by other means.

[0033] The seal 30 can adopt Figure 1 the shown hollow structure so that the seal 30 can generate better elastic deformation in the sealed state. In some other embodiments, the seal 30 can also adopt a solid structure.

[0034] The through lamp 20 can adopt a structure form surrounding the front part of the vehicle. Therefore, please refer to Figure 2 , the seal 30 can be arranged in a curved strip shape matching the structure form of the through lamp 20.

[0035] For the convenience of processing and manufacturing the seal 30, exemplarily, please refer to Figure 2 , the seal 30 can be arranged with an extruded main body section 31 and two connecting corner sections 32. The two connecting corner sections 32 are respectively located at opposite ends of the extruded main body section 31 along the extending direction.

[0036] The extrusion main body section 31 is a section formed by extrusion using an extruder, while the two connecting corner sections 32 are processed by other processing techniques. For example, the two connecting corner sections 32 can be injection molded using a mold.

[0037] The extrusion main body section 31 and the two connecting corner sections 32 can be bonded together using a vulcanization process.

[0038] Please continue to refer to Figure 1 , on the side of the seal 30 close to the front engine hood 10, there are at least a first sealing surface 30a and a second sealing surface 30b. That is to say, in addition to the first sealing surface 30a and the second sealing surface 30b, other sealing surfaces can also be provided.

[0039] The first sealing surface 30a and the second sealing surface 30b can be flat surfaces or curved surfaces with a non-zero curvature.

[0040] The first sealing surface 30a is located on the front side of the second sealing surface 30b along the forward direction of the vehicle. When the front engine hood 10 is in the closed state, the first sealing surface 30a and the second sealing surface 30b are in sealing contact with the front engine hood 10 respectively. That is to say, when the front engine hood 10 is in the closed state, the seal 30 forms a seal with the front engine hood 10 at at least two positions in the forward direction of the vehicle. One position is the position where the first sealing surface 30a is in sealing contact with the front engine hood 10, and the other position is the position where the second sealing surface 30b is in sealing contact with the front engine hood 10.

[0041] In the related art, the sealing method between the front engine hood and the through lamp is to set a simple sealing strip between the front engine hood and the through lamp. When the front engine hood is in the closed state, the sealing strip only has one position in sealing contact with the front engine hood. Therefore, after the front engine hood is closed, the sealing strip is prone to deform towards the rear side in the forward direction of the vehicle under the action of the front engine hood, resulting in a relatively large cavity formed on the front side of the sealing strip. During the process of the vehicle traveling at a high speed (such as above 90 kilometers per hour), the high-speed airflow flows through the cavity, thus generating a wind noise with a "hissing" sound.

[0042] In the embodiment of the present application, the seal 30 of the sealing structure of the engine hood of the vehicle forms seals with the front engine hood 10 at at least two positions in the vehicle forward direction when the front engine hood 10 is in the closed state by providing at least a first sealing surface 30a and a second sealing surface 30b on the side close to the front engine hood 10. This sealing method has good sealing performance, and the seal 30 is not easily deformed backward in the vehicle forward direction under the action of the front engine hood 10. Therefore, the seal 30 can effectively seal the spaced space 10a formed between the front engine hood 10 and the through lamp 20, so that high-speed air flow can be better prevented from entering the spaced space 10a during the high-speed driving of the vehicle, thereby generating wind noise with a "hissing" sound. Compared with the sealing strip using the related technology, by using the seal 30 of the embodiment of the present application, the noise frequency inside the vehicle can be maintained within the range of 2500 Hz - 4800 Hz (including the end point values), and the noise intensity is reduced by at least 2.7 dB, and thus the wind noise can be effectively reduced.

[0043] In one embodiment, please refer to Figure 1 , the front engine hood 10 includes a hood body 11 and an intermediate member 12. The hood body 11 has a hem 11a bent in the direction close to the through lamp 20. The hem 11a is located on the front side of the hood body 11 along the vehicle forward direction. The intermediate member 12 is located on the side of the hem 11a close to the through lamp 20. When the front engine hood 10 is in the closed state, the first sealing surface 30a is in sealing contact with the intermediate member 12.

[0044] The hood body 11 is the main structure of the front engine hood 10. The specific structure of the intermediate member 12 is not limited. Exemplarily, the intermediate member 12 can be an adhesive member adhered to the hem 11a, for example, a PVC (Polyvinyl Chloride) adhesive member.

[0045] Since the hem 11a is located on the front side of the hood body 11 along the vehicle forward direction, during the driving of the vehicle, the external air flow enters the interior of the vehicle from between the hem 11a and the through lamp 20. Therefore, by using the seal 30 to seal the position where the hem 11a is provided, the function of blocking the air flow from entering the spaced space 10a can be better achieved. By providing the intermediate member 12 on the side of the hem 11a close to the through lamp 20 and the first sealing surface 30a being in sealing contact with the intermediate member 12, the reliability of the seal can be improved.

[0046] In some other embodiments, the intermediate member 12 may not be provided. For example, when the front engine hood 10 is in the closed state, the first sealing surface 30a may also be in sealing contact with the hem 11a.

[0047] In one embodiment, please refer to Figure 1, the cover body 11 can be provided with a first bending section 11b protruding towards the direction close to the through lamp 20. The first bending section 11b is located at the rear side of the hem 11a along the forward direction of the vehicle, and the second sealing surface 30b is in sealing contact with the first bending section 11b.

[0048] By providing the first bending section 11b protruding towards the direction close to the through lamp 20, when the front engine hood 10 is in the closed state, the first bending section 11b can reliably abut against the second sealing surface 30b, thereby better improving the sealing effect between the second sealing surface 30b and the front engine hood 10.

[0049] Please continue to refer to Figure 1 , the cover body 11 can also be provided with a second bending section 11c protruding towards the direction away from the through lamp 20. The second bending section 11c is located between the hem 11a and the first bending section 11b, and is smoothly transitioned with the hem 11a and the first bending section 11b respectively.

[0050] The second bending section 11c being smoothly transitioned with the hem 11a and the first bending section 11b respectively means that the junctions of the second bending section 11c and the hem 11a and the junctions of the second bending section 11c and the first bending section 11b are both relatively smooth, without obvious protrusions or depressions. Or rather, the curvature of the second bending section 11c is continuous with the curvature of the hem 11a, and the curvature of the second bending section 11c is also continuous with the curvature of the first bending section 11b.

[0051] By providing the second bending section 11c, a better transitional effect can be achieved between the hem 11a and the first bending section 11b, thereby making the appearance of the front engine hood 10 more beautiful.

[0052] In one embodiment, please refer to Figure 1 , the second sealing surface 30b has a first edge line 30b1 and a second edge line 30b2 (it can be understood that in the Figure 1 cross-sectional view, both the first edge line 30b1 and the second edge line 30b2 are in the shape of dots, rather than lines). The first edge line 30b1 is located at the front side of the second edge line 30b2 along the forward direction of the vehicle. The ground clearance of the first edge line 30b1 is higher than the ground clearance of the second edge line 30b2, and the second sealing surface 30b is a curved surface protruding towards the direction close to the front engine hood 10.

[0053] The ground clearances of the first edge line 30b1 and the second edge line 30b2 are the heights of the first edge line 30b1 and the second edge line 30b2 relative to the ground after the vehicle engine hood sealing structure is installed on the vehicle.

[0054] The ground clearance of the first edge line 30b1 is higher than that of the second edge line 30b2. This is equivalent to the fact that from the first edge line 30b1 to the second edge line 30b2 of the second sealing surface 30b, the second sealing surface 30b is a curved surface that slopes downward relative to the forward direction of the vehicle. This setting method can enable the front engine hood 10 to generate a component force parallel and forward to the forward direction of the vehicle when the front engine hood 10 is in the closed state by sealingly contacting the second sealing surface 30b, and this component force can play a better blocking role on the seal 30, thereby better preventing the seal 30 from deforming backward in the forward direction of the vehicle under the action of the front engine hood 10.

[0055] Please continue to refer to Figure 1 , the first sealing surface 30a can be a curved surface protruding towards the front engine hood 10, and the first sealing surface 30a and the second sealing surface 30b are in smooth transition.

[0056] The smooth transition between the first sealing surface 30a and the second sealing surface 30b means that the junction between the first sealing surface 30a and the second sealing surface 30b is relatively smooth without obvious protrusions or depressions. Or rather, the curvature of the first sealing surface 30a and the curvature of the second sealing surface 30b are continuous.

[0057] The first sealing surface 30a is set as a curved surface protruding towards the front engine hood 10, which can also achieve a good sealing effect. At the same time, the smooth transition between the first sealing surface 30a and the second sealing surface 30b can also simplify the structure of the seal 30, facilitating processing and manufacturing.

[0058] In one embodiment, please refer to Figure 1 , one side of the through lamp 20 close to the front engine hood 10 has a first outer surface 21a, a second outer surface 21b and a limiting surface 21c. The first outer surface 21a is located on the front side of the second outer surface 21b along the forward direction of the vehicle, and the ground clearance of the first outer surface 21a is higher than that of the second outer surface 21b. The limiting surface 21c is connected to the first outer surface 21a and the second outer surface 21b respectively. The seal 30 can be arranged on the second outer surface 21b and is in limiting cooperation with the limiting surface 21c.

[0059] Specifically, there can be a certain gap between the seal 30 and the limiting surface 21c, or the seal 30 can also be in contact with the limiting surface 21c. Among them, the contact between the seal 30 and the limiting surface 21c can be a sealing contact or a non-sealing contact.

[0060] The limiting surface 21c can play a better limiting and blocking role on the seal 30 to prevent the seal 30 from deforming or moving forward in the forward direction of the vehicle in case of an accident.

[0061] In one embodiment, please refer toFigure 1 Moreover, the seal 30 may further be provided with a third sealing surface 30c facing the first outer surface 21a. Figure 1 As shown, the third sealing surface 30c is a curved surface protruding towards the first outer surface 21a. In some other embodiments, the third sealing surface 30c may also be a flat surface.

[0062] Please continue to refer to Figure 1 , the third sealing surface 30c is at least in sealing contact with the first outer surface 21a when the front engine hood 10 is in the closed state. That is to say, the third sealing surface 30c may always be in sealing contact with the first outer surface 21a, or may be in sealing contact with the first outer surface 21a under the action of the front engine hood 10 when the front engine hood 10 is in the closed state.

[0063] Providing the third sealing surface 30c can not only improve the sealing effect of the seal 30, but also enable the seal 30 to shield the junction of the first outer surface 21a and the limiting surface 21c of the through lamp 20, so that the appearance of the through lamp 20 can be more ornamental, and thus the static perception quality of the whole vehicle can be improved.

[0064] In the description of the present application, the descriptions with reference to terms such as "in one embodiment", "in some embodiments", "in some other embodiments", "in still some other embodiments", or "exemplary", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine the different embodiments or examples described in the present application and the features of different embodiments or examples.

[0065] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A sealing structure for an automobile engine bonnet, characterized in that: include: front engine cover; A through light, wherein the through light is arranged on one side of the front engine cover along the opening and closing direction, and when the front engine cover is in a closed state, a separation space is formed between the front engine cover and the through light; A seal for sealing the interval space, wherein the seal has at least a first sealing surface and a second sealing surface on a side close to the front bonnet, wherein the first sealing surface is located in front of the second sealing surface along the forward direction of the vehicle, and when the front bonnet is in the closed state, the first sealing surface and the second sealing surface are respectively in sealing contact with the front bonnet.

2. The automobile engine bonnet sealing structure according to claim 1, characterized in that: The front bonnet includes a cover body and a middle piece, the cover body has a folded edge formed by bending in a direction close to the through-light, the folded edge is located on the front side of the cover body along the forward direction of the automobile, and the middle piece is located on the side of the folded edge close to the through-light. When the front bonnet is in the closed state, the first sealing surface is in sealing contact with the middle piece.

3. The automobile engine bonnet sealing structure according to claim 1, characterized in that: The front bonnet includes a cover body, which has a folded edge bent in a direction close to the through-light, and the folded edge is located at the front side of the cover body along the forward direction of the automobile. When the front bonnet is in the closed state, the first sealing surface is in sealing contact with the folded edge.

4. The automobile engine bonnet sealing structure according to claim 2 or 3, characterized in that: The cover body has a first curved section protruding toward the direction approaching the through-light, the first curved section is located at the rear side of the folded edge along the forward direction of the automobile, and the second sealing surface is in sealing contact with the first curved section.

5. The automobile engine bonnet sealing structure according to claim 4, characterized in that: The cover body has a second curved section protruding in a direction away from the through-lamp, the second curved section is located between the folded edge and the first curved section, and has a smooth transition with the folded edge and the first curved section respectively.

6. The automobile engine bonnet sealing structure according to any one of claims 1 to 3, characterized in that: The second sealing surface has a first edge line and a second edge line, the first edge line is located in front of the second edge line along the forward direction of the automobile, the height of the first edge line from the ground is higher than the height of the second edge line from the ground, and the second sealing surface is a curved surface convexly formed in a direction close to the front engine cover.

7. The automobile engine bonnet sealing structure according to claim 6, characterized in that: The first sealing surface is a curved surface that protrudes toward the direction close to the front engine cover, and the first sealing surface and the second sealing surface are smoothly transitioned.

8. The automobile engine bonnet sealing structure according to any one of claims 1 to 3, characterized in that: The side of the through-light close to the front hood has a first outer surface, a second outer surface and a limiting surface, the first outer surface is located in front of the second outer surface along the forward direction of the automobile, and the height of the first outer surface above the ground is higher than the height of the second outer surface above the ground, the limiting surface is respectively connected to the first outer surface and the second outer surface, and the sealing component is arranged on the second outer surface and is in sealing contact with the limiting surface.

9. The automobile engine bonnet sealing structure according to claim 8, characterized in that: The sealing member has a third sealing surface facing the first outer surface, and the third sealing surface is in sealing contact with the first outer surface at least when the front bonnet is in the closed state.

10. The automobile engine bonnet sealing structure according to any one of claims 1 to 3, characterized in that: The sealing member is a hollow structure; and / or, The sealing member is in the shape of a curved long strip and comprises an extruded main body section and two corner sections, wherein the two corner sections are respectively located at two opposite ends of the extruded main body section along the extension direction.

11. A car, characterized in that: The invention comprises the automobile engine bonnet sealing structure as described in any one of claims 1 to 10.

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