Lower protection plate assembly for vehicle and vehicle

Abstract

The utility model relates to a lower guard plate assembly for a vehicle and the vehicle, the lower guard plate assembly comprises a lower guard plate body, an air inlet hole penetrating through the lower guard plate body in the thickness direction is formed in the lower guard plate body, and an air guide wall located on the air inlet hole and located on the front side of the vehicle is formed on the lower guard plate body; and the air guide wall is obliquely arranged towards the bottom of the vehicle in the direction close to the air inlet hole. According to the lower protection plate assembly, the air guide wall is arranged on the edge of the air inlet hole, and the air guide wall is obliquely arranged towards the bottom of the vehicle in the direction close to the air inlet hole, so that airflow entering the cabin through the air inlet hole can flow towards a part with high heat productivity in the cabin along the air guide wall; therefore, the heat dissipation effect of parts with high heat productivity in the cabin is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a lower guard plate assembly for a vehicle and the vehicle. Background Art

[0002] In the related art, the main function of the vehicle's underbody guard assembly is to protect the engine and components in the cabin from colliding with bumps on the road surface, while also making the bottom of the car flat and reducing the car's wind resistance. The underbody guard assembly is generally provided with air inlets and air guide structures to dissipate heat inside the cabin, but the two are too dispersed, and the air guide structure cannot effectively guide the wind to the areas inside the cabin where heat generation is higher, resulting in poor heat dissipation inside the cabin. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a lower guard plate assembly for a vehicle. According to the lower guard plate assembly of the utility model, an air guide wall is arranged at the edge of the air inlet, and the air guide wall is inclined toward the bottom of the vehicle in the direction close to the air inlet, so that the airflow entering the cabin through the air inlet can flow along the air guide wall toward the components with higher heat generation in the cabin, thereby improving the heat dissipation effect of the components with higher heat generation in the cabin.

[0004] The utility model also provides a vehicle with the lower guard plate assembly.

[0005] According to the utility model, a lower guard plate assembly for a vehicle includes: a lower guard plate body, on which is formed an air inlet hole which passes through in the thickness direction, and on which is formed an air guide wall which is located on the front side of the air inlet hole on the vehicle; wherein the air guide wall is inclined toward the bottom of the vehicle in a direction close to the air inlet hole.

[0006] According to the utility model, the lower guard plate assembly is provided with an air inlet hole which penetrates in the thickness direction through the lower guard plate body, and the guard plate body is also provided with an air guide wall which extends toward the interior of the cabin. The air guide wall is arranged at the edge of the air inlet hole and is inclined toward the bottom of the vehicle in the direction close to the air inlet hole, so that the airflow entering the cabin through the air inlet hole can flow along the air guide wall toward the components with higher heat generation in the cabin, thereby improving the heat dissipation effect of the components with higher heat generation in the cabin.

[0007] According to some embodiments of the utility model, the air guide wall includes: a first inclined surface, which is constructed as a plane and is inclined toward the bottom of the vehicle in a direction close to the air inlet; a second inclined surface, which is connected to the first inclined surface and is located on a side of the first inclined surface close to the air inlet, and the second inclined surface is constructed as an arc-shaped surface.

[0008] According to some embodiments of the present invention, the second inclined surface protrudes toward one side of the air inlet.

[0009] According to some embodiments of the utility model, the lower guard plate assembly further includes: an air guide portion, which is disposed in the air inlet and is suitable for guiding the airflow entering the air inlet.

[0010] According to some embodiments of the utility model, the air guide portion is constructed as air guide plates arranged at intervals in the width direction of the air inlet hole, and each of the air guide plates is inclined in the width direction from front to back.

[0011] According to some embodiments of the present invention, the thickness of each of the air guide plates gradually increases in a direction away from the air inlet.

[0012] According to some embodiments of the utility model, the lower guard plate body includes: a front plate body, on which the air guide wall is formed; a rear plate body, which is connected to the front plate body and on which the air inlet hole is formed; wherein a recess is formed on the rear plate body, and the recess is located on the rear side of the air inlet hole.

[0013] According to some embodiments of the present invention, the edge of the air guide wall adjacent to the air inlet hole protrudes beyond the edge of the recess adjacent to the air inlet hole.

[0014] According to some embodiments of the present invention, the bottom wall of the recess is horizontally arranged and the wall surface of the recess on one side close to the air inlet is constructed as a demolding surface, and the angle between the demolding surface and the bottom wall is α, 3°≤α≤5°.

[0015] The vehicle according to the present utility model is briefly described below.

[0016] The vehicle according to the utility model is provided with the lower guard plate assembly described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the lower guard plate assembly described in any one of the above embodiments, the heat dissipation effect of the engine compartment is better when the vehicle according to the present application is running, so that the stability, safety and reliability of the vehicle during operation are higher.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1is a side view of a lower guard plate assembly according to an embodiment of the utility model;

[0020] Figure 2 is a top view of a lower guard plate assembly according to an embodiment of the utility model;

[0021] Figure 3 yes Figure 2 Sectional view of AA in the middle;

[0022] Figure 4 yes Figure 2 Cross-sectional view of BB.

[0023] Reference numerals:

[0024] 100, lower guard plate assembly;

[0025] 1. Lower guard body; 11. Front plate body; 12. Rear plate body; 121. Recessed portion;

[0026] 21. a first inclined surface; 22. a second inclined surface;

[0027] 101. Air inlet; 31. Air guide plate. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the related art, the main function of the vehicle's underbody guard assembly is to protect the engine and components in the cabin from colliding with bumps on the road surface, while also making the bottom of the car flat and reducing the car's wind resistance. The underbody guard assembly is generally provided with air inlets and air guide structures to dissipate heat inside the cabin, but the two are too dispersed, and the air guide structure cannot effectively guide the wind to the areas inside the cabin where heat generation is higher, resulting in poor heat dissipation inside the cabin.

[0030] Reference below Figure 1-Figure 4 A lower guard plate assembly for a vehicle according to an embodiment of the present invention is described.

[0031] According to the utility model, a lower guard plate assembly for a vehicle includes: a lower guard plate body 1, on which is formed an air inlet hole 101 which passes through in the thickness direction, and on which is formed an air guide wall located at the front side of the air inlet hole 101 on the vehicle; wherein the air guide wall is inclined toward the bottom of the vehicle in a direction close to the air inlet hole 101.

[0032] In some specific embodiments, at least one air inlet hole 101 is formed on the lower guard plate body 1, and the air inlet hole 101 penetrates the lower guard plate body 1 in the thickness direction. The airflow in the external environment of the vehicle can enter the interior of the cabin through the air inlet hole 101 and dissipate the heat inside the cabin. An air guide wall is also formed on the lower guard plate body 1, and the air guide wall is arranged at the edge of the air inlet hole 101. The air guide wall extends toward the interior of the cabin and is inclined toward the bottom of the vehicle in the direction close to the air inlet hole 101, so that the airflow entering the cabin through the air inlet hole 101 can flow along the air guide wall toward the components with higher heat generation in the cabin, thereby improving the heat dissipation effect of the components with higher heat generation in the cabin.

[0033] According to the utility model, the lower guard plate assembly is provided with an air inlet hole 101 which penetrates in the thickness direction through the lower guard plate body 1, and the guard plate body is also provided with an air guide wall extending toward the interior of the cabin. The air guide wall is arranged at the edge of the air inlet hole 101 and is inclined toward the bottom of the vehicle in the direction close to the air inlet hole 101, so that the airflow entering the cabin through the air inlet hole 101 can flow along the air guide wall toward the components with higher heat generation in the cabin, thereby improving the heat dissipation effect of the components with higher heat generation in the cabin.

[0034] According to some embodiments of the utility model, the air guide wall includes: a first inclined surface 21 and a second inclined surface 22, the first inclined surface 21 is constructed as a plane and is inclined toward the bottom of the vehicle in a direction close to the air inlet hole 101; the second inclined surface 22 is connected to the first inclined surface 21 and is located on the side of the first inclined surface 21 close to the air inlet hole 101, and the second inclined surface 22 is constructed as an arc-shaped surface.

[0035] In some specific embodiments, the wind guide wall is composed of a first inclined surface 21 and a second inclined surface 22. The first inclined surface 21 is arranged at the edge of the air inlet hole 101 and is inclined toward the bottom of the vehicle in a direction close to the air inlet hole 101. The first inclined surface 21 can provide a clear and continuous guiding interface for the airflow. When the airflow encounters the first inclined surface 21, the airflow can move toward the area with higher heat generation in the cabin along the angle direction set by the first inclined surface 21, thereby improving the heat dissipation effect inside the cabin. The first inclined surface 21 is constructed as a plane, which can reduce the resistance and turbulence in the airflow flow, avoid local vortices and turbulence of the airflow that may be caused by complex curved surfaces, and enable the airflow to be introduced into the cabin in large quantities. The flow efficiency of the airflow is improved; the second inclined surface 22 is connected to the free end of the first inclined surface 21, and the second inclined surface 22 is constructed as a curved surface. When the airflow passes through the second inclined surface 22, the guide angle and speed of the airflow can be further refined, thereby effectively guiding the airflow upward, so that more airflow can flow to the components with higher heat generation in the cabin, thereby improving the heat dissipation effect of the cabin. The curved surface can also guide the airflow more smoothly. Compared with right-angle or acute-angle turns, the curved surface can reduce the airflow separation phenomenon, that is, the phenomenon that the airflow separates from the surface of an object to generate vortices, and reduce the flow resistance of the airflow. The curved surface design helps to maintain the laminar state of the airflow, avoid turbulence, reduce the noise generated by the airflow movement, and improve the stability of vehicle driving.

[0036] According to some embodiments of the utility model, the second inclined surface 22 protrudes toward one side of the air inlet 101. The protruding second inclined surface 22 can more smoothly guide the airflow to flow along the extension direction of the second inclined surface. This design allows the airflow to further accurately adjust its flow direction according to a predetermined trajectory after passing through the first inclined surface 21, thereby reducing the airflow separation phenomenon, thereby more efficiently guiding the air to the components with higher heat generation in the cabin, thereby improving the heat dissipation effect in the cabin.

[0037] According to some embodiments of the utility model, the lower guard plate assembly also includes: an air guide portion, which is arranged in the air inlet hole 101 and is suitable for guiding the airflow entering the air inlet hole 101. The air guide portion can accurately guide the airflow entering the air inlet hole 101 to flow along a predetermined path, ensuring that the airflow is more concentrated and smoothly guided to the parts of the cabin with higher heat generation, such as the steering motor, the electric pedal motor or other key heat-generating components, thereby improving the heat dissipation effect and heat dissipation efficiency of the cabin. The air guide portion can also reduce the turbulence of the airflow when passing through the air inlet hole 101, avoid the generation of unnecessary eddy currents, thereby reducing air resistance, reducing noise during vehicle driving, and improving the NVH (noise, vibration and acoustic roughness) of the vehicle.

[0038] According to some embodiments of the utility model, the air guide portion is constructed as air guide plates 31 arranged at intervals in the width direction of the air inlet hole 101. The air guide plates 31 arranged at intervals can make the airflow entering the air inlet hole 101 more evenly distributed in the width direction, thereby avoiding uneven heat dissipation inside the cabin caused by the airflow being concentrated in a certain part, and ensuring the consistency and high efficiency of the heat dissipation effect. Each air guide plate 31 is inclined in the width direction from front to back to guide the airflow to flow along a predetermined path of the air guide plate 31, reducing the probability of the airflow directly impacting the heat-generating components. The inclined setting of the air guide plates 31 can help the airflow maintain a stable laminar state when passing through a narrow space, reduce turbulence and resistance, and improve the heat dissipation efficiency of the cabin.

[0039] According to some embodiments of the utility model, the thickness of each air guide plate 31 gradually increases in the direction away from the air inlet hole 101. On the one hand, as the thickness of the air guide plate 31 increases, the blocking effect of the rear part of the air guide plate 31 on the airflow is enhanced, which helps to control the speed and direction of the airflow, reduce the vortex and turbulence of the airflow, and help the airflow pass through the air guide plate 31 more smoothly, reducing the friction between the airflow and the edge of the air guide plate 31, thereby reducing wind resistance, reducing the noise caused by the airflow, improving the NVH (noise, vibration and acoustic roughness) of the vehicle, and improving the heat dissipation effect of the cabin. On the other hand, as the thickness of the air guide plate 31 increases in the direction away from the air inlet hole 101, the strength and rigidity of the air guide plate 31 away from the air inlet hole 101 are gradually improved, thereby improving the stability and reliability of the air guide plate 31 when airflow passes through, reducing the deformation of the air guide plate 31 caused by air pressure or vibration, and ensuring the reliability and durability of the air guide plate 31 during long-term use.

[0040] According to some embodiments of the utility model, the lower guard plate body 1 includes: a front plate body 11 and a rear plate body 12, wherein the front plate body 11 is formed with an air guide wall; the rear plate body 12 is connected to the front plate body 11 and an air inlet hole 101 is formed on the rear plate body 12; wherein a recess 121 is formed on the rear plate body 12, and the recess 121 is located on the rear side of the air inlet hole 101.

[0041] In some specific embodiments, the lower guard plate body 1 is composed of a front plate body 11 and a rear plate body 12, the front plate body 11 and the rear plate body 12 are connected to each other, and an air inlet hole 101 is formed at the connection between the front plate body 11 and the rear plate body 12, an air guide wall is formed on the side of the front plate body 11 close to the air inlet hole 101, and a recess 121 is formed on the side of the rear plate body 12 facing the air inlet hole 101, the recess 121 is arranged opposite to the air guide wall, and the air guide wall and at least part of the recessed interior together constitute an airflow channel, which can effectively guide the airflow to flow along a predetermined path, ensure that the airflow smoothly reaches the area in the cabin where higher heat generation is required, and improve the heat dissipation efficiency and effect of the cabin. At the same time, the presence of the recess 121 helps to stabilize the airflow through the air guide wall, reduce the generation of eddy currents and turbulence, and make the airflow smoother.

[0042] In addition, the front plate body 11, the rear plate body 12 and the wind guide plate 31 are constructed as an integral piece. The integral structure eliminates the connection gaps between the components in the split structure, making the entire lower guard plate assembly a continuous, seamless whole, greatly enhancing its structural strength and anti-twisting ability. During vehicle driving, facing the impact of complex road conditions and high-speed airflow, the overall structure of the lower guard plate assembly is more stable and not easy to deform or damage.

[0043] According to some embodiments of the utility model, the edge of the air guide wall adjacent to the air inlet hole 101 protrudes beyond the edge of the recess 121 adjacent to the air inlet hole 101, and the distance between the free end of the air guide wall and the lower guard plate body 1 is greater than the distance between the free end of the recess 121 and the lower guard plate body 1. By adjusting the height difference between the air guide wall and the recess 121 at the air guide hole, the sudden change of the airflow when entering the air guide hole can be reduced, and the vortex caused by the sudden change of the airflow direction can be avoided, which helps the airflow to pass through the air guide plate 31 more smoothly, reducing the friction between the airflow and the edge of the air guide plate 31, thereby reducing wind resistance, reducing the noise caused by the airflow, and improving the NVH (noise, vibration and acoustic roughness) of the vehicle.

[0044] According to some embodiments of the utility model, the bottom wall of the recess 121 is horizontally arranged and the wall surface of the recess 121 on the side close to the air inlet hole 101 is constructed as a demolding surface, and the angle between the demolding surface and the bottom wall is α, 3°≤α≤5°, so that the recess 121 is steeper than the wind guide wall, so as to ensure that the airflow rises high and passes through the area with higher heat generation in the cabin, thereby improving the heat dissipation effect in the cabin.

[0045] The vehicle according to the present utility model is briefly described below.

[0046] The vehicle according to the utility model is provided with the lower guard plate assembly described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the lower guard plate assembly described in any one of the above embodiments, the heat dissipation effect of the engine compartment is better when the vehicle according to the present application is running, so that the stability, safety and reliability of the vehicle during operation are higher.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "first feature" or "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more.

[0049] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0050] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lower guard plate assembly for a vehicle, characterized in that: include: A lower guard plate body (1), wherein the lower guard plate body (1) is formed with an air inlet hole (101) penetrating in the thickness direction, and the lower guard plate is formed with an air guide wall located at the front side of the air inlet hole (101) on the vehicle; wherein The wind guide wall is arranged to be inclined toward the bottom of the vehicle in a direction close to the air inlet hole (101).

2. The lower guard plate assembly for a vehicle according to claim 1, characterized in that: The wind guide wall comprises: A first inclined surface (21), the first inclined surface (21) being configured as a plane and inclined toward the bottom of the vehicle in a direction close to the air inlet hole (101); A second inclined surface (22), the second inclined surface (22) is connected to the first inclined surface (21) and is located on a side of the first inclined surface (21) close to the air inlet hole (101), and the second inclined surface (22) is constructed as an arc-shaped surface.

3. The lower guard plate assembly for a vehicle according to claim 2, characterized in that: The second inclined surface (22) protrudes toward one side of the air inlet hole (101).

4. The lower guard plate assembly for a vehicle according to claim 1, characterized in that: Also includes: An air guide portion, wherein the air guide portion is arranged in the air inlet hole (101) and is suitable for guiding the airflow entering the air inlet hole (101).

5. The lower guard plate assembly for a vehicle according to claim 4, characterized in that: The air guide portion is constructed as air guide plates (31) arranged at intervals in the width direction of the air inlet hole (101), and each of the air guide plates (31) is inclined in the width direction from front to back.

6. The lower guard plate assembly for a vehicle according to claim 5, characterized in that: The thickness of each of the air guide plates (31) gradually increases in a direction away from the air inlet hole (101).

7. The lower guard plate assembly for a vehicle according to claim 1, characterized in that: The lower guard plate body (1) comprises: A front plate body (11), the wind guide wall being formed on the front plate body (11); a rear plate (12), the rear plate (12) being connected to the front plate (11) and the air inlet hole (101) being formed on the rear plate (12); wherein A recess (121) is formed on the rear plate (12), and the recess (121) is located at the rear side of the air inlet hole (101).

8. The lower guard plate assembly for a vehicle according to claim 7, characterized in that: The edge of the air guide wall adjacent to the air inlet hole (101) protrudes beyond the edge of the recess (121) adjacent to the air inlet hole (101).

9. The lower guard plate assembly for a vehicle according to claim 7, characterized in that: The bottom wall of the recess (121) is arranged horizontally, and the wall surface of the recess (121) on one side close to the air inlet (101) is configured as a demoulding surface, and the angle between the demoulding surface and the bottom wall is α, 3°≤α≤5°.

10. A vehicle, characterized in that: Includes the lower guard plate assembly as described in any one of claims 1-9.

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