Rear side wall decorating part and vehicle

Abstract

The invention relates to a rear side wall decorating part and a vehicle, the rear side wall decorating part comprises an inner plate assembly and an outer plate assembly, and the inner plate assembly comprises an inner plate body; the outer plate assembly comprises a decorating part body, the decorating part body is connected with the inner plate body, an air guide channel is defined by the decorating part body and the inner plate body, the air guide channel is provided with an air inlet and an air outlet, a first guide face is formed on the decorating part body, and the first guide face is arranged on the upstream of the air inlet; the first guide face is an arc-shaped guide face, and the curve radius of at least part of the first guide face is gradually decreased from front to back in the extending direction of the first guide face from front to back, so that a gradual change area is formed. The curve radius of at least part of the first guide surface is gradually reduced from front to back in the extending direction of the first guide surface from front to back, so that the non-uniformity of airflow and the formation of a local high-pressure area are reduced, the smooth and stable flowing of the airflow is ensured, the turbulent flow and vortex of the airflow are reduced, and the overall performance of the air guide channel is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive exterior decoration, and particularly to a rear side panel decorative member and a vehicle. Background Art

[0002] The rear side panels of existing vehicles are usually made of sheet metal, which are costly, heavy and have many processing steps, and cannot meet the requirements of vehicle lightweight, low cost and high quality. In the prior art, plastic is used as the rear side panel decorative member and is arranged in the rear area of the rear side window. An air guiding channel is formed in the rear side panel decorative member. When the vehicle is running, the oncoming wind flows backward through the air guiding channel, reducing the air resistance received by the vehicle.

[0003] However, the structural layout at the air inlet of the air guiding channel is poor, resulting in the formation of a high-pressure area at a local part of the guide when the air flow enters the guiding channel, affecting the performance of the air guiding channel. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a rear side panel decorative member to solve the problem that the air flow entering the guiding channel in the prior art is likely to generate a high-pressure area at a local part of the guide, affecting the performance of the air guiding channel; the second purpose is to provide a vehicle.

[0005] To achieve the above purposes, the technical solutions adopted by the present invention are as follows:

[0006] A rear side panel decorative member includes an inner panel assembly and an outer panel assembly. The inner panel assembly includes an inner panel body; the outer panel assembly includes an outer panel body. The outer panel body is connected to the inner panel body and encloses to form an air guiding channel. The air guiding channel has an air inlet and an air outlet. A first guiding surface is formed on the outer panel body, and the first guiding surface is arranged upstream of the air inlet; the first guiding surface is an arc-shaped guiding surface. Along the extending direction of the first guiding surface from front to back, the curve radius of at least part of the first guiding surface decreases from the front end to the rear end to form a gradual change area.

[0007] According to the above technical means, along the extending direction of the first guiding surface from front to back, the curve radius of at least part of the first guiding surface decreases from the front end to the rear end, reducing the air flow non-uniformity and the formation of local high-pressure areas, ensuring smooth and stable air flow, reducing the turbulence and eddy current of the air flow, and improving the overall performance of the air guiding channel.

[0008] Further, the curve radius of the front end of the first guiding surface is R1, and the curve radius of the rear end of the first guiding surface is R2, satisfying R1≥100mm, R2≥50mm. The ratio of the curve radius R1 of the front end of the first guiding surface to the curve radius R2 of the rear end of the first guiding surface is K, satisfying K≥2.

[0009] According to the above technical means, by limiting the ratio K of the front curve radius R1 to the rear curve radius R2 of the first guiding surface, the air flow can gradually adapt to the change of the decreasing curve radius, further reducing the non-uniformity of the air flow and the formation of local high-pressure areas.

[0010] Furthermore, along the extending direction of the first guiding surface from front to back, the length of the first guiding surface is L1, satisfying L1≥305mm, and along the extending direction of the gradual change area from front to back, the length of the gradual change area is L2, satisfying L2>200mm.

[0011] According to the above technical means, by controlling the lengths of the first guiding surface and the gradual change area, it is ensured that the air flow can be guided through a long enough gradual change area to ensure a smooth transition of the air flow.

[0012] Furthermore, the included angle α formed by the front axis direction of the first guiding surface and the front axis direction of the air guiding channel satisfies 15°≤α≤30°.

[0013] According to the above technical means, by limiting the value of the included angle formed by the front axis direction of the first guiding surface and the front axis direction of the air guiding channel, while reducing air flow separation and improving air flow efficiency, it is possible to prevent an excessive increase in the air resistance of the vehicle due to an overly large included angle and prevent the generation of turbulence.

[0014] Furthermore, the projected area of the front end of the first guiding surface along the axis direction is S1, and the projected area of the rear end of the first guiding surface along the axis direction is S2, satisfying S1 / S2≥4 / 3.

[0015] According to the above technical means, the ratio design of the projected areas of the front end and the rear end of the first guiding surface along the axis direction determines the direction of the air flow when it enters the air inlet, which can avoid a sudden change in the air flow when it enters the air inlet and prevent an increase in the generation of turbulence and the air resistance of the vehicle.

[0016] Furthermore, the rear side surround trim also includes a guiding support member, which is arranged in the air guiding channel, and both sides of the guiding support member are respectively connected to the inner panel body and the outer panel body.

[0017] According to the above technical means, by arranging the guiding support member, it is possible to avoid the deformation of the air guiding channel under external extrusion and the resulting abnormal noise problems; it can effectively block foreign objects from entering the air guiding channel, reduce the gas flow velocity in the air guiding channel, and thus provide a downward pressure for the vehicle.

[0018] Furthermore, the orthographic projection area of the guiding support member along the axis direction is S3, and the orthographic projection area of the air guiding channel along the axis direction is S4, satisfying S3 / S4×100%≤15%.

[0019] According to the above technical means, by limiting the ratio of the orthographic projection area of the guiding support along the axial direction to the orthographic projection area of the air guiding channel along the axial direction, while ensuring the stable supporting effect of the guiding support, the influence of the guiding support on the air flow characteristics in the air guiding channel is prevented from being too large.

[0020] Furthermore, there are two guiding supports, and the two guiding supports are arranged at intervals along the height direction of the vehicle. The two guiding supports are arranged in a staggered manner along the length direction of the vehicle. The projection distance of the front ends of the two guiding supports along the length direction of the vehicle is L3, and the projection distance of the air guiding channel along the length direction of the vehicle is L4, satisfying 1 / 12 ≤ L3 / L4 ≤ 1 / 10.

[0021] According to the above technical means, the two guiding supports are arranged at intervals up and down to prevent the air flow from being overly concentrated or dispersed in the air guiding channel, enabling the air flow to flow smoothly at different heights; the two guiding supports are arranged in a staggered manner front and back, and the gas is guided by one guiding support and then by the other guiding support, making the gas flow direction tend to be stable; by controlling the projection distance of the front ends of the two guiding supports along the length direction of the vehicle, the fluctuation and oscillation of the air flow are reduced, which helps to maintain the stability of the air flow.

[0022] Furthermore, the two guiding supports are respectively a first guiding support and a second guiding support. The first guiding support is arranged above the second guiding support. The projection dimension of the distance from the lower edge of the first guiding support to the upper edge of the second guiding support along the height direction of the vehicle is L5, and the projection dimension of the distance from the upper edge of the first guiding support to the lower edge of the second guiding support along the height direction of the vehicle is L6, satisfying L5 / L6 ≤ 1 / 3.

[0023] According to the above technical means, by limiting the distance between the first guiding support and the second guiding support, the air flow separation is reduced, the occurrence of a large eddy current area is prevented, the air flow can smoothly pass through the air guiding channel, and the energy loss is reduced.

[0024] Furthermore, the guiding support includes a guiding seat and a clamping seat. The guiding seat is arranged on the outer plate body, and the clamping seat is arranged on the inner plate body. The guiding seat and the clamping seat are detachably connected.

[0025] According to the above technical means, the cooperation of the guiding seat and the clamping seat realizes the detachable connection of the inner plate body and the outer plate body, which is convenient for replacement, maintenance and inspection.

[0026] Furthermore, the orthographic projection area of the air inlet along the axial direction is S5, and the orthographic projection area of the air outlet along the axial direction is S6, satisfying S5 / S6 ≥ 20 / 17.

[0027] According to the above technical means, the orthographic projection area of the air inlet along the axial direction is larger than the orthographic projection area of the air outlet along the axial direction. While reducing the air resistance caused by the gas to the vehicle, the flow rate of the gas in the air guide channel is increased, and the downward pressure of the vehicle is further enhanced.

[0028] Furthermore, along the vehicle height direction, the height of the air inlet is greater than the height of the air outlet.

[0029] According to the above technical means, the height of the air inlet is greater than the height of the air outlet. After the air flow enters the air guide channel, it provides a downward pressure to the vehicle, improving the driving stability of the vehicle.

[0030] A vehicle includes a vehicle frame and the above-mentioned rear side surround trim; there are two of the rear side surround trims, and the two rear side surround trims are symmetrically arranged on both sides of the vehicle frame.

[0031] Furthermore, the vehicle further includes a back door air deflector, the back door air deflector is connected to the vehicle frame, the back door air deflector has a second guiding surface, along the axial direction, the second guiding surface is arranged downstream of the air outlet, and the guiding direction of the second guiding surface is a direction away from the ground.

[0032] According to the above technical means, the second guiding surface guides the gas to move upward, and the gas gradually moves upward after flowing out of the second guiding surface, thereby further increasing the downward pressure of the vehicle and improving the driving stability of the vehicle.

[0033] Advantages of the present invention:

[0034] (1) Along the extending direction of the first guiding surface from front to back of the present invention, the curve radius of at least part of the first guiding surface is arranged to decrease from the front end to the rear end, reducing the non-uniformity of the air flow and the formation of local high-pressure areas, ensuring smooth and stable air flow, reducing the turbulence and eddy current of the air flow, and improving the overall performance of the air guide channel;

[0035] (2) By limiting the ratio K of the front curve radius R1 of the first guiding surface to the rear curve radius R2 of the first guiding surface of the present invention, the air flow can gradually adapt to the change of the decreasing curve radius, further reducing the non-uniformity of the air flow and the formation of local high-pressure areas;

[0036] (3) By controlling the length of the first guiding surface and the length of the gradual change area of the present invention, it is ensured that the air flow can be guided through a long enough gradual change area to ensure smooth transition of the air flow;

[0037] (4) By limiting the value of the included angle formed by the front end axial direction of the first guiding surface and the front end axial direction of the air guide channel of the present invention, while reducing air flow separation and improving air flow efficiency, it is prevented from increasing the air resistance received by the vehicle due to an excessive included angle and preventing the generation of turbulence;

[0038] (5) In the axial direction of the present invention, the design of the ratio of the projected areas of the front end and the rear end of the first guiding surface determines the direction of the air flow when it enters the air inlet, which can prevent the sudden change of the air flow when it enters the air inlet, avoid increasing the generation of turbulence and the air resistance suffered by the vehicle;

[0039] (6) By providing a guiding support member in the present invention, the deformation of the air guiding channel under external extrusion and the resulting abnormal noise problem are avoided; foreign objects can be effectively blocked from entering the air guiding channel, the gas flow rate in the air guiding channel is reduced, and thus a downward pressure is provided for the vehicle;

[0040] (7) By limiting the ratio of the projected area of the guiding support member in the axial direction to the projected area of the air guiding channel in the axial direction in the present invention, while ensuring the stable support effect of the guiding support member, the influence of the guiding support member on the air flow characteristics in the air guiding channel is prevented from being too large;

[0041] (8) The two guiding support members in the present invention are arranged at intervals up and down to avoid the over-concentration or dispersion of the air flow in the air guiding channel, so that the air flow flows smoothly at different heights; the two guiding support members are arranged in a staggered manner front and back, and the gas is guided by one guiding support member and then guided by the other guiding support member, so that the gas flow direction tends to be stable; by controlling the projected distance of the front ends of the two guiding support members in the length direction of the vehicle, the fluctuation and oscillation of the air flow are reduced, which helps to maintain the stability of the air flow;

[0042] (9) By limiting the distance between the first guiding support and the second guiding support in the present invention, the air flow separation is reduced, the occurrence of a large eddy current area is prevented, the air flow can smoothly pass through the air guiding channel, and the energy loss is reduced;

[0043] (10) The cooperation of the guiding seat and the clamping seat in the present invention realizes the detachable connection of the inner plate body and the outer plate body, which is convenient for replacement, maintenance and inspection;

[0044] (11) The projected area of the air inlet in the axial direction of the present invention is larger than the projected area of the air outlet in the axial direction. While reducing the air resistance caused by the gas to the vehicle, the gas flow rate in the air guiding channel is increased, and the downward pressure of the vehicle is further improved;

[0045] (12) The height of the air inlet in the present invention is greater than the height of the air outlet. After the air flow enters the air guiding channel, it provides a downward pressure for the vehicle and improves the driving stability of the vehicle;

[0046] (13) The second guiding surface in the present invention guides the gas to move upward, and the gas gradually moves upward after flowing out of the second guiding surface, thereby further improving the downward pressure of the vehicle and the driving stability of the vehicle. Description of the Drawings

[0047] Figure 1 Explosion assembly diagram of the rear side panel trim and the vehicle frame in the embodiment of the present invention;

[0048] Figure 2 Front view of the rear side panel trim in the embodiment of the present invention at the air inlet;

[0049] Figure 3 Schematic structural diagram of the inner panel assembly in the embodiment of the present invention;

[0050] Figure 4 It is Figure 3 The D-D sectional view shown;

[0051] Figure 5 Schematic structural diagram of the outer panel assembly in the embodiment of the present invention;

[0052] Figure 6 Rear view of the rear side panel trim in the embodiment of the present invention at the air outlet;

[0053] Figure 7 Front and side view of the whole vehicle of the rear side panel trim in the embodiment of the present invention;

[0054] Figure 8 It is Figure 7 The enlarged view of part Ⅰ of;

[0055] Figure 9 It is Figure 7 The A-A sectional view shown;

[0056] Figure 10 Rear and side view of the whole vehicle of the rear side panel trim in the embodiment of the present invention;

[0057] Figure 11 It is Figure 10 The B-B sectional view shown;

[0058] Figure 12 It is Figure 10 The C-C sectional view shown

[0059] Figure 13 Schematic structural diagram of the air outlet when the rear door of the vehicle is opened in the embodiment of the present invention;

[0060] Figure 14 It is Figure 13 The enlarged view of part Ⅱ of;

[0061] Figure 15 It is Figure 14 The E-E sectional view shown;

[0062] Figure 16 Schematic structural diagram of the rear side window in the embodiment of the present invention;

[0063] Figure 17 Structural schematic diagram of the vehicle at the rear side panel according to an embodiment of the present invention;

[0064] Figure 18 Schematic diagram of the included angle between the front end axis direction of the first guiding surface and the front end axis direction of the air guiding channel in an embodiment of the present invention;

[0065] Figure 19 Schematic diagram of the relative positions of the first guiding support and the second guiding support in an embodiment of the present invention.

[0066] Wherein, 10 - inner panel assembly; 11 - inner panel body; 12 - first foam; 13 - first decorative strip; 131 - first decorative strip snap point; 132 - fourth sealing soft glue; 14 - seventh sealing soft glue; 15 - bracket connection point; 20 - outer panel assembly; 21 - outer panel body; 211 - first guiding surface; 22 - second foam; 23 - decorative part body; 231 - ninth sealing soft glue; 30 - air guiding channel; 31 - air inlet; 32 - air outlet; 40 - guiding support member; 41 - first guiding support; 42 - second guiding support; 43 - guiding seat; 44 - snap seat; 50 - vehicle frame; 51 - side panel welding assembly; 511 - side panel water trough; 52 - back door welding assembly; 53 - rear taillight; 531 - second sealing soft glue; 54 - second decorative strip; 55 - rear door; 60 - back door air deflector; 61 - second guiding surface; 62 - third sealing soft glue; 70 - air outlet bracket; 80 - air outlet cover plate; 81 - first sealing soft glue; 90 - rear side panel window; 91 - fifth sealing soft glue; 92 - sixth sealing soft glue; 93 - hard glue; 100 - air inlet cover plate; 101 - eighth sealing soft glue. Detailed implementation manners

[0067] The following will describe the implementation manners of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention rather than limiting the protection scope of the present invention.

[0068] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The type, quantity and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0069] The following will describe the embodiments of the present invention in conjunction with Figures 1 to 19 , to describe the embodiments of the present invention.

[0070] According to an embodiment of the present invention, in a first aspect, a rear side panel decorative member is provided, which includes an inner panel assembly 10 and an outer panel assembly 20. The inner panel assembly 10 includes an inner panel body 11; the outer panel assembly 20 includes an outer panel body 21, and the outer panel body 21 is connected to the inner panel body 11 and encloses to form an air guiding channel 30. The air guiding channel 30 has an air inlet 31 and an air outlet 32. A first guiding surface 211 is formed on the outer panel body 21, and the first guiding surface 211 is disposed upstream of the air inlet 31; the first guiding surface 211 is an arc-shaped guiding surface, and along the extending direction of the first guiding surface 211 from front to back, the curve radius of at least a part of the first guiding surface 211 is set to decrease from the front end to the rear end to form a gradient area.

[0071] Applying the rear side panel decorative member of this embodiment, along the extending direction of the first guiding surface 211 from front to back, the curve radius of at least a part of the first guiding surface 211 is set to decrease from the front end to the rear end, reducing the non-uniformity of the air flow and the formation of local high-pressure areas, ensuring smooth and stable air flow, reducing the turbulence and eddy current of the air flow, and improving the overall performance of the air guiding channel 30.

[0072] It should be noted that in the related art, no guiding surface is designed at the front end of the air guiding channel 30 of the rear side panel structure. During the driving of the vehicle, some air flow will form a large angle with the air inlet 31 when flowing into the air inlet 31, resulting in the formation of eddy current at the air inlet 31, reducing the smoothness of the air flow entering the channel, and may also generate air flow noise.

[0073] Therefore, in this application, a first guiding surface 211 is provided at the front end of the air guiding channel 30. The first guiding surface 211 pre-guides the air flow about to enter the air guiding channel, making the air flow smoother and avoiding the formation of a large turbulent area at the air inlet 31; moreover, after being guided by the first guiding surface 211, the air flow enters the air guiding channel smoothly, reducing the air flow impact and vibration, thereby reducing the air flow noise.

[0074] Specifically, the first guiding surface 211 is a U-shaped guiding surface.

[0075] Specifically, as Figure 2 shown, the cross-sectional shape of the air inlet 31 is approximately raindrop-shaped to implement a thin design solution; as Figure 6 shown, the air outlet 32 is an approximately trapezoidal outlet, and the setting of the trapezoidal outlet reduces the turbulence of the air flow flowing through the air duct along the air guiding direction of the air guiding channel 30.

[0076] Specifically, the outer panel assembly 20 further includes a decorative member body 23, and the decorative panel body is connected to the outer panel body 21.

[0077] In one embodiment, as Figure 3As shown, the inner panel assembly 10 further includes a first foam 12. The first foam 12 is disposed at the edge of the inner panel body 11 and is arranged close to the air guide channel 30 to prevent abnormal noises and depressions in the area of the air guide channel 30 caused by external leaning or pressing, and improve the waterproof performance.

[0078] In one embodiment, as Figure 5 shown, the outer panel assembly 20 further includes a second foam 22. The second foam 22 is disposed at the edge of the outer panel body 21 and is arranged close to the air guide channel 30 to prevent abnormal noises and depressions in the area of the air guide channel 30 caused by external leaning or pressing, and improve the waterproof performance.

[0079] In one embodiment, the front curve radius of the first guiding surface 211 is R1, and the rear curve radius of the first guiding surface 211 is R2, satisfying R1≥100mm, R2≥50mm. The ratio of the front curve radius R1 to the rear curve radius R2 of the first guiding surface 211 is K, satisfying K≥2.

[0080] Specifically, in this embodiment, R1 is 100mm and R2 is 50mm, that is, K is 2.

[0081] It should be noted that the values of the front curve radius R1 and the rear curve radius R2 of the first guiding surface 211 can be adjusted according to actual situations.

[0082] It is worth noting that by limiting the ratio K of the front curve radius R1 to the rear curve radius R2 of the first guiding surface 211, the air flow can gradually adapt to the change of the decreasing curve radius, further reducing the non-uniformity of the air flow and the formation of local high-pressure areas.

[0083] In one embodiment, along the extending direction of the first guiding surface 211 from front to back, the length of the first guiding surface 211 is L1, satisfying L1≥305mm. Along the extending direction of the gradual change area from front to back, the length of the gradual change area is L2, satisfying L2>200mm.

[0084] Specifically, in this embodiment, the length L1 of the first guiding surface 211 is 350mm, and the length L2 of the gradual change area is 250mm.

[0085] Of course, in other alternative embodiments, the length L1 of the first guiding surface 211 and the length L2 of the gradual change area can also be selected and adjusted according to actual situations.

[0086] It is worth noting that by controlling the length of the first guiding surface 211 and the length of the gradual change area, it is ensured that the air flow can be smoothly guided through a long enough gradual change area.

[0087] In one embodiment, as Figure 18 shown, the included angle α between the front end axis direction of the first guiding surface 211 and the front end axis direction of the air guiding channel 30 satisfies 15° ≤ α ≤ 30°. By limiting the value of the included angle between the front end axis direction of the first guiding surface 211 and the front end axis direction of the air guiding channel 30, while reducing air flow separation and improving air flow efficiency, it is possible to prevent an excessive increase in the air resistance received by the vehicle due to an overly large included angle and to prevent the generation of turbulence.

[0088] Specifically, the included angle α between the front end axis direction of the first guiding surface 211 and the front end axis direction of the air guiding channel 30 is 20°.

[0089] It should be noted that when α > 30°, the air flow flows from the first guiding surface 211 into the air guiding channel 30, and the resistance generated by the structure inside the air guiding channel 30 on the air flow is too large, resulting in a relatively large air resistance received by the vehicle, affecting the formation stability, and an overly large included angle between the front end axis direction of the first guiding surface 211 and the front end axis direction of the air guiding channel 30 is prone to generating turbulence. Therefore, based on the principle of fluid mechanics, the selection range of the included angle between the front end axis direction of the first guiding surface 211 and the front end axis direction of the air guiding channel 30 is determined.

[0090] Furthermore, the projected area of the front end of the first guiding surface 211 along the axis direction is S1, and the projected area of the rear end of the first guiding surface 211 along the axis direction is S2, satisfying S1 / S2 ≥ 4 / 3.

[0091] It is worth noting that the ratio design of the projected areas of the front end and the rear end of the first guiding surface 211 along the axis direction determines the direction of the air flow when it enters the air inlet 31, which can avoid a sudden change in the direction of the air flow when it enters the air inlet 31, and avoid an increase in the generation of turbulence and the air resistance received by the vehicle.

[0092] In one embodiment, as Figure 6 shown, the rear side body trim also includes a guiding support member 40. The guiding support member 40 is disposed inside the air guiding channel 30, and both sides of the guiding support member 40 are respectively connected to the inner plate body 11 and the outer plate body 21. By providing the guiding support member 40, it is possible to avoid the deformation of the air guiding channel 30 under external extrusion and the resulting abnormal noise problems; it can effectively block foreign objects from entering the air guiding channel 30, reduce the gas flow rate inside the air guiding channel 30, and further provide a downward pressure for the vehicle.

[0093] Specifically, as Figure 6 shown, there are two guiding support members 40 in this embodiment.

[0094] It should be noted that the two guiding supports 40 form two blocking barriers in the air guiding channel 30, which can block larger foreign objects such as branches and garbage debris that enter the air guiding channel 30 along with the air flow, prevent the foreign objects from further moving in the air guiding channel 30, and avoid damage to the relevant structures of the air guiding channel 30 caused by the foreign objects.

[0095] Furthermore, the edges of the guiding support 40 adopt a smooth arc transition to reduce the degree of turbulence when the air flow passes through, reduce the resistance when the air flow passes through, avoid the existence of sharp edges on the guiding support 40, and avoid air flow separation and turbulence in the air guiding channel 30.

[0096] In one embodiment, the orthographic projection area of the guiding support 40 along the axial direction is S3, and the orthographic projection area of the air guiding channel 30 along the axial direction is S4, satisfying S3 / S4×100%≤15%. By limiting the ratio of the orthographic projection area of the guiding support 40 along the axial direction to the orthographic projection area of the air guiding channel 30 along the axial direction, while ensuring the stable support effect of the guiding support 40, it prevents the guiding support 40 from having too much influence on the air flow characteristics in the air guiding channel 30.

[0097] It should be noted that when S3 / S4×100%>15%, the orthographic projection area of the guiding support 40 along the axial direction is too large. Although the support effect of the guiding support 40 is better, the resistance of the air flow passing through the air guiding channel 30 by the guiding support 40 is larger, and the air flow is prone to vibration in the air guiding channel 30, affecting the flow characteristics of the air flow.

[0098] In one embodiment, as Figure 19 shown, there are two guiding supports 40. The two guiding supports 40 are arranged at intervals along the height direction of the vehicle, and the two guiding supports 40 are arranged in a staggered manner along the length direction of the vehicle. The projection distance of the front ends of the two guiding supports 40 along the length direction of the vehicle is L3, and the projection distance of the air guiding channel 30 along the length direction of the vehicle is L4, satisfying 1 / 12≤L3 / L4≤1 / 10. The two guiding supports 40 are arranged at intervals up and down to avoid the air flow being overly concentrated or dispersed in the air guiding channel 30, so that the air flow flows smoothly at different heights; the two guiding supports 40 are arranged in a staggered manner front and back, and the gas is guided by one guiding support 40 and then guided by the other guiding support 40, making the gas flow direction tend to be stable; by controlling the projection distance of the front ends of the two guiding supports 40 along the length direction of the vehicle, the fluctuation and oscillation of the air flow are reduced, which helps to maintain the stability of the air flow.

[0099] Specifically, the two guiding supports 40 are respectively the first guiding support 41 and the second guiding support 42. Please refer to Figure 19, the first guiding support 41 is arranged above the second guiding support 42. The projected dimension in the vehicle height direction from the lower edge of the first guiding support 41 to the upper edge of the second guiding support 42 is L5, and the projected dimension in the vehicle height direction from the upper edge of the first guiding support 41 to the lower edge of the second guiding support 42 is L6, satisfying L5 / L6 ≤ 1 / 3. By defining the distance between the first guiding support 41 and the second guiding support 42, the air flow separation is reduced, the occurrence of a large eddy current area is prevented, the air flow can smoothly pass through the air guiding channel 30, and the energy loss is reduced.

[0100] It should be noted that when L5 / L6 > 1 / 3, the distance from the lower edge of the first guiding support 41 to the upper edge of the second guiding support 42 is too large, and the flow of the air flow on the surfaces of the two guiding supports 40 is relatively independent, which is prone to air flow separation and a large eddy current area, resulting in an increase in air flow resistance. Therefore, it is necessary to further define the distance between the first guiding support 41 and the second guiding support 42 so that the air flow can smoothly pass through the air guiding channel 30.

[0101] Furthermore, the orthographic projection area of the air inlet 31 in the axial direction is S5, and the orthographic projection area of the air outlet 32 in the axial direction is S6, satisfying S5 / S6 ≥ 20 / 17. The orthographic projection area of the air inlet 31 in the axial direction is larger than that of the air outlet 32 in the axial direction. While reducing the air resistance caused by the gas to the vehicle, the flow rate of the gas in the air guiding channel 30 is increased, and the downward pressure of the vehicle is further enhanced.

[0102] It should be noted that the orthographic projection area of the air inlet 31 in the axial direction is larger than that of the air outlet 32 in the axial direction. The flow rate of the gas at the air outlet 32 is greater than that of the gas at the air inlet 31. The gas flow rate becomes faster, and the faster the flow rate, the smaller the pressure. The pressure at the top of the vehicle is greater than the pressure at the air outlet 32, thereby generating a downward pressure difference and increasing the downward pressure of the vehicle.

[0103] It is worth noting that the air flow enters from the air inlet 31, is guided by the first guiding support 41 and the second guiding support 42, and then flows out from the air outlet 32, realizing the weakening of the internal air flow from top to bottom and from front to back. Finally, the air pressure and flow rate of the air flow passing through the air duct are increased. By reducing the air flow rate inside the air duct, the air flow passing through the air duct further enhances the downward pressure of the vehicle and reduces the energy consumption of the vehicle.

[0104] In one embodiment, as Figure 3 and Figure 5As shown, the guiding support member 40 includes a guiding seat 43 and a clamping seat 44. The guiding seat 43 is arranged on the outer plate body 21, and the clamping seat 44 is arranged on the inner plate body 11. The guiding seat 43 and the clamping seat 44 are detachably connected. The cooperation of the guiding seat 43 and the clamping seat 44 realizes the detachable connection between the inner plate body 11 and the outer plate body 21, which is convenient for replacement, maintenance and inspection.

[0105] In one embodiment, along the vehicle height direction, the height of the air inlet 31 is greater than the height of the air outlet 32. Since the height of the air inlet 31 is greater than the height of the air outlet 32, after the air flow enters the air guiding channel 30, it provides a downward pressure to the vehicle, improving the driving stability of the vehicle.

[0106] It should be noted that when the air flow flows out from the lower air outlet 32, it will generate a downward impact force on the vehicle, thus increasing the downward pressure of the vehicle.

[0107] According to an embodiment of the present invention, in a second aspect, there is provided a vehicle, including a vehicle frame 50 and the above-mentioned rear side panel trim; there are two rear side panel trims, and the two rear side panel trims are symmetrically arranged on both sides of the vehicle frame 50.

[0108] In one embodiment, as Figure 11 shown, the vehicle further includes a back door wind deflector 60. The back door wind deflector 60 is connected to the vehicle frame 50. The back door wind deflector 60 has a second guiding surface 61. Along the axial direction, the second guiding surface 61 is arranged downstream of the air outlet 32, and the guiding direction of the second guiding surface 61 is away from the ground. The second guiding surface 61 guides the gas to move upward. After the gas flows out of the second guiding surface 61, it gradually moves upward, thereby further increasing the downward pressure of the vehicle and improving the driving stability of the vehicle.

[0109] Specifically, as Figure 11 and Figure 17 shown, the vehicle frame 50 includes a side panel welding assembly 51 and a back door welding assembly 52. The back door wind deflector 60 is connected to the back door welding assembly 52; a side panel water trough 511 is formed on the side panel welding assembly 51, and there is a gap between the back door guiding plate and the side panel water trough 511; as Figure 1 shown, the rear side panel trim further includes an air outlet bracket 70 and an air outlet cover plate 80. The air outlet bracket 70 is detachably connected to the side panel welding assembly 51. As Figure 3 shown, a bracket connection point 15 is arranged on the inner plate body 11. The outlet bracket is connected to the inner plate body 11 through the bracket connection point 15. The air outlet cover plate 80 is detachably connected to the air outlet bracket 70, and the air outlet cover plate 80 is connected to the inner plate body 11.

[0110] Furthermore, as Figure 15As shown, the surface of the air outlet cover plate 80 is coated with a first sealing soft rubber 81, and the upper part of the air outlet cover plate 80 is overlapped with the outer plate body 21 through the first sealing soft rubber 81 to achieve sealing; As Figure 14 shown, the vehicle frame 50 further includes a rear taillight 53, a second sealing soft rubber 531 is provided on the rear taillight 53, and the lower part of the air outlet cover plate 80 is overlapped with the second sealing soft rubber 531 through the first sealing soft rubber 81 to achieve sealing.

[0111] Furthermore, as Figure 11 shown, a third sealing soft rubber 62 is provided at the edge of the rear door air deflector 60, and the third sealing soft rubber 62 is overlapped with the first sealing soft rubber 81 to achieve regional sealing of the side wall gutter 511.

[0112] In one embodiment, as Figure 2 shown, the inner panel assembly 10 further includes a first decorative strip 13, the first decorative strip 13 is provided on the inner panel body 11, and along the length direction of the vehicle, a first decorative strip clamping point 131 is formed at the front end of the first decorative strip 13. As Figure 17 shown, a second decorative strip 54 is provided on the vehicle frame 50, and the first decorative strip clamping point 131 is detachably and fixedly connected to the second decorative strip 54 to achieve zero-gap sealing; As Figure 2 shown, a fourth sealing soft rubber 132 is provided on the first decorative strip 13, and the first decorative strip 13 forms a seal with the side wall welding assembly 51 through the secondary injection molding soft rubber edge of the fourth sealing soft rubber 132.

[0113] In one embodiment, as Figure 16 shown, the vehicle further includes a rear side wall window 90, the edge of the rear side wall window 90 has multiple regions from a to f, a fifth sealing soft rubber 91 is provided on the rear side wall window 90, and the lower part of the first decorative strip 13 is overlapped with the fifth sealing soft rubber 91 to achieve sealing of the regions from a to c; A sixth sealing soft rubber 92 is further provided on the rear side wall window 90, and the sixth sealing soft rubber 92 is pressed between the rear side wall window 90 and the outer plate body 21 to achieve sealing of the regions from c to d; As Figure 3 shown, a seventh sealing soft rubber 14 is further provided on the inner panel body 11, the vehicle frame 50 further includes a side wall outer panel, and the seventh sealing soft rubber 14 and the side wall outer panel are pressed together by soft rubber to achieve sealing of the regions from d to e; The rear side wall decorative part further includes an air inlet cover plate 100. As Figure 8 shown, an eighth sealing soft rubber 101 is provided on the air inlet cover plate 100. As Figure 16 shown, a hard rubber 93 is provided on the rear side wall window 90, and the air inlet cover plate 100 is overlapped with the hard rubber 93 through the eighth sealing soft rubber 101 to achieve sealing of the regions from e to f; The vehicle frame 50 further includes a rear door 55. As Figure 2As shown, a ninth sealing soft rubber 231 is provided on the decorative part body 23, and the cooperation part between the lower end of the rear side window body 90 and the rear door 55 is sealed through the ninth sealing soft rubber 231.

[0114] The above embodiments are only preferred embodiments cited to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are within the protection scope of the present invention.

Claims

1. A rear side surround decorative part, characterized in that, including an inner panel assembly (10), including an inner panel body (11); an outer panel assembly (20), including an outer panel body (21), the outer panel body (21) is connected to the inner panel body (11) and encloses to form an air guiding channel (30), the air guiding channel (30) has an air inlet (31) and an air outlet (32), and a first guiding surface (211) is formed on the outer panel body (21), and the first guiding surface (211) is arranged upstream of the air inlet (31); the first guiding surface (211) is an arc-shaped guiding surface, and along the extending direction of the first guiding surface (211) from front to back, the curve radius of at least part of the first guiding surface (211) is set to decrease from the front end to the rear end to form a gradient area.

2. The rear side panel trim according to claim 1, characterized in that The curve radius of the front end of the first guiding surface (211) is R1, and the curve radius of the rear end of the first guiding surface (211) is R2, satisfying R1≥100mm, R2≥50mm, and the ratio of the curve radius R1 of the front end of the first guiding surface (211) to the curve radius R2 of the rear end of the first guiding surface (211) is K, satisfying K≥2.

3. The rear side surround trim according to claim 2, characterized in that, Along the extending direction of the first guiding surface (211) from front to back, the length of the first guiding surface (211) is L1, satisfying L1≥305mm, and along the extending direction of the gradient area from front to back, the length of the gradient area is L2, satisfying L2>200mm.

4. The rear fender trim according to any one of claims 1-3, characterized in that, The included angle between the front end axis direction of the first guiding surface (211) and the front end axis direction of the air guiding channel (30) is α, satisfying 15°≤α≤30°.

5. The rear side surround trim member according to any one of claims 1-3, characterized in that, The projected area of the front end of the first guiding surface (211) in the axis direction is S1, and the projected area of the rear end of the first guiding surface (211) in the axis direction is S2, satisfying S1 / S2≥4 / 3.

6. The rear side surround trim member according to any one of claims 1 to 3, characterized in that, The rear side surround trim also includes a guiding support member (40), the guiding support member (40) is arranged in the air guiding channel (30), and both sides of the guiding support member (40) are respectively connected to the inner panel body (11) and the outer panel body (21).

7. The rear quarter trim according to claim 6, wherein The projected area of the guiding support member (40) in the axis direction is S3, and the projected area of the air guiding channel (30) in the axis direction is S4, satisfying S3 / S4×100%≤15%.

8. The rear side panel trim according to claim 6, characterized in that, There are two guiding support members (40), the two guiding support members (40) are arranged at intervals in the height direction of the vehicle, the two guiding support members (40) are arranged staggeredly in the length direction of the vehicle, the projected distance of the front ends of the two guiding support members (40) in the length direction of the vehicle is L3, and the projected distance of the air guiding channel (30) in the length direction of the vehicle is L4, satisfying 1 / 12≤L3 / L4≤1 / 10.

9. The rear side surround trim according to claim 8, characterized in that, The two guiding and supporting members (40) are respectively a first guiding and supporting member (41) and a second guiding and supporting member (42). The first guiding and supporting member (41) is arranged above the second guiding and supporting member (42). The projected dimension in the vehicle height direction of the distance from the lower edge of the first guiding and supporting member (41) to the upper edge of the second guiding and supporting member (42) is L5, and the projected dimension in the vehicle height direction of the distance from the upper edge of the first guiding and supporting member (41) to the lower edge of the second guiding and supporting member (42) is L6, satisfying L5 / L6 ≤ 1 / 3.

10. The rear side surround trim member according to claim 6, characterized in that, The guiding and supporting member (40) includes a guiding seat (43) and a clamping seat (44). The guiding seat (43) is arranged on the outer plate body (21), and the clamping seat (44) is arranged on the inner plate body (11). The guiding seat (43) and the clamping seat (44) are detachably connected.

11. The rear side surround trim according to any one of claims 1 to 3, characterized in that, The orthographic projection area of the air inlet (31) in the axial direction is S5, and the orthographic projection area of the air outlet (32) in the axial direction is S6, satisfying S5 / S6 ≥ 20 / 17.

12. The rear side panel trim according to any one of claims 1-3, characterized in that, In the vehicle height direction, the height of the air inlet (31) is greater than the height of the air outlet (32).

13. A vehicle, characterized in that, Comprising: A vehicle frame (50); The rear side surround decorative member according to any one of claims 1 to 12. There are two rear side surround decorative members, and the two rear side surround decorative members are symmetrically arranged on both sides of the vehicle frame (50).

14. The vehicle according to claim 13, characterized in that, The vehicle further includes a back door air deflector (60). The back door air deflector (60) is connected to the vehicle frame (50). The back door air deflector (60) has a second guiding surface (61). In the axial direction, the second guiding surface (61) is arranged downstream of the air outlet (32), and the guiding direction of the second guiding surface (61) is the direction away from the ground.

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