Roof rack structure and vehicle

Abstract

The roof luggage rack structure comprises a luggage rack body, the luggage rack body is arranged above a roof, the luggage rack body comprises a front rod, the upper surface of the front rod is arranged to be a smooth cambered surface, and the lower surface of the front rod is parallel to the corresponding roof surface; wherein a first included angle between the upper surface of the front rod and the horizontal plane is 30-45 degrees.

Description

Technical Field

[0001] The present application relates to the technical field of luggage racks, and in particular to a roof luggage rack structure and a vehicle. Background Art

[0002] A car roof rack is a support frame installed on the top of the car body to safely and conveniently fix luggage. Nowadays, there are usually different ways to set up the luggage rack installed on the roof of the car. The simplest luggage rack is to only install vertical bars on both sides of the car roof. This kind of luggage rack is called a small luggage rack; a more complex luggage rack is to install sheet metal rods around the car roof, and also install luggage boxes, horizontal bars, spotlights, etc. above a circle of sheet metal rods. This kind of luggage rack is called a large luggage rack. After installing a large luggage rack, it can play a decorative role from the appearance, and the overall look will be more personalized. In addition, the installation of a large luggage rack will undoubtedly greatly expand the loading space for items, bringing great convenience to travel or outdoor activities. Therefore, a large luggage rack on the roof of a car has become a very common vehicle modification structure.

[0003] However, when installing a large luggage rack, wind noise is an inevitable problem. Even a small crossbar will cause a sharp increase in wind noise, which will greatly reduce the driving comfort in the car. Based on current technology, the wind noise performance of existing large luggage racks is not perfect enough. Considering the feasibility, safety and practicality of the project, how to reduce the wind noise of the large luggage rack on the roof of the car has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of this application is to provide a roof luggage rack structure to solve the problem that the wind resistance performance of existing large luggage racks is not perfect enough and the wind noise performance is poor; the second purpose is to provide a vehicle.

[0005] In order to achieve the above purpose, the technical solution adopted in this application is as follows:

[0006] A roof luggage rack structure comprises: a luggage rack body, which is arranged above the roof, the luggage rack body comprises a front rod, the upper surface of the front rod is set as a smooth arc surface, and the lower surface of the front rod is parallel to the corresponding roof surface; wherein, the first angle between the first tangent line of the upper surface of the front rod at its upper end point and the horizontal line is set at 30-45°.

[0007] According to the above technical means, it can be foreseen that when the high-speed airflow flows through the luggage rack body, it will be diverted at the windward surface of the front rod, and the high-speed airflow is divided into an upper airflow and a lower airflow. This embodiment sets the upper surface of the front rod to a smooth arc surface, and sets the first angle α between the upper surface of the front rod and the horizontal plane to 30-45°, so that the upper airflow can flow along the upper surface of the front rod without causing airflow separation. In addition, this embodiment sets the lower surface of the front rod to be parallel to the roof surface corresponding to the front rod, so that the lower airflow can flow out in parallel, reduce the generation of vortices, and greatly reduce the intensity of low-frequency noise in this area.

[0008] Furthermore, the outer edge contour of the luggage rack body is arranged identically to the outer edge contour of the roof, and is arranged symmetrically relative to the central axis of the vehicle.

[0009] According to the above technical means, the outer edge contour of the luggage rack body is set to be the same as the outer edge contour of the roof, which can not only improve the driving stability of the vehicle, but also reduce wind noise.

[0010] Furthermore, the luggage rack body also includes: a rear rod, the upper surface of which is a smooth arc surface, and the lower surface of the rear rod is parallel to the corresponding roof surface.

[0011] According to the above technical means, the airflow below can be made to flow out in parallel, the generation of vortices can be reduced, and the intensity of low-frequency noise in this area can be reduced.

[0012] Furthermore, the luggage rack body also includes: a left rod, which is located on one side of the luggage rack body, and the two ends of the left rod are respectively connected to the front rod and the rear rod; a right rod, which is located on the other side of the luggage rack body, and the two ends of the right rod are respectively connected to the front rod and the rear rod; wherein the distance between the roof and the front rod and the rear rod is set at 20-30mm, and the distance between the roof and the left rod and the right rod is set at 10-20mm.

[0013] According to the above technical means, by setting the distance between the roof and the front rod and the rear rod at 20-30 mm, and setting the distance between the roof and the left rod and the right rod at 10-20 mm, wind noise can be reduced to a certain extent.

[0014] Furthermore, the front rod is provided with a plurality of platform-type grooves, and the roof luggage rack structure also includes: a plurality of spotlights, which are respectively arranged at the corresponding platform-type grooves, so that the spotlights are in the shape of a flat cylinder, the windward surface of the spotlights is set as an arc surface, and the second angle between the upper surface of the spotlight and the horizontal plane is set at -10-(-8°).

[0015] According to the above technical means, by setting up spotlights, safe driving can be achieved on roads with very weak light. By setting a flat cylindrical spotlight in a platform-type groove, and setting the windward surface of the spotlight as an arc surface, the second angle between the second tangent of the upper surface of the spotlight at its upper end point and the horizontal line is set at -10-(-8°), which can avoid the risk of howling and prevent the airflow from separating and reattaching in the platform-type groove. At the same time, the airflow behind the spotlight is optimized to a certain extent, greatly reducing the intensity of the noise source in this area.

[0016] Furthermore, a plurality of the spotlights are installed at equal intervals on the platform-shaped groove of the front bar and are symmetrically arranged relative to the central axis of the vehicle, and the lower surface of the spotlight is in close contact with the front bar.

[0017] According to the above technical means, not only the driving stability of the vehicle can be improved, but also the wind noise can be reduced.

[0018] Furthermore, the roof luggage rack structure also includes: a crossbeam, which is arranged on the middle part of the luggage rack body, the windward surface of the crossbeam is arranged as a guide arc surface, and the upper surface of the crossbeam is parallel to the lower surface of the crossbeam.

[0019] According to the above technical means, by setting a crossbeam, the structural strength of the luggage rack body can be enhanced. By setting the windward surface of the crossbeam as a guide arc surface and making the upper surface of the crossbeam and the lower surface of the crossbeam parallel, the noise source caused by the crossbeam itself can be reduced to a minimum.

[0020] Furthermore, the roof rack structure also includes: a spoiler net, which is arranged between the front rod and the cross beam, wherein the mesh size of the spoiler net is not greater than 0.1 mm.

[0021] According to the above technical means, by setting a spoiler net, the impact of the airflow above the luggage rack body on the roof is weakened, the downward pressure airflow is broken up, the energy of the downward pressure airflow is reduced, and the intensity of the noise source above the roof is greatly reduced.

[0022] Furthermore, the roof luggage rack structure also includes: a plurality of bases, one end of which is connected to the luggage rack body and the other end is connected to the roof, and the windward surface of the base is set to be flat in the middle and arc-shaped on both sides.

[0023] According to the above technical means, by setting a base, it can play the role of supporting the luggage rack body and make the luggage rack body float above the roof. On this basis, the present application can avoid the generation of noise sources at the base by setting the windward surface of the base to be flat in the middle and arc-shaped on both sides.

[0024] A vehicle comprises a vehicle body and the roof luggage rack structure as described above, wherein the roof luggage rack structure is arranged on the roof of the vehicle body.

[0025] Beneficial effects of this application:

[0026] When the high-speed airflow flows through the luggage rack body, it will be diverted at the windward surface of the front rod, and the high-speed airflow is divided into an upper airflow and a lower airflow. This embodiment sets the upper surface of the front rod to a smooth arc surface, and sets the first angle between the first tangent line of the upper surface of the front rod at its upper end point and the horizontal line to 30-45°, so that the upper airflow can flow along the upper surface of the front rod without causing airflow separation. This embodiment also sets the lower surface of the front rod to be parallel to the roof surface corresponding to the front rod, so that the lower airflow can flow out in parallel, thereby reducing the generation of vortices and reducing the intensity of low-frequency noise in this area. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure set on the roof of the vehicle for this application.

[0028] Figure 2 This is a schematic diagram of the structure of this application.

[0029] Figure 3 for Figure 1 AA cross-section diagram.

[0030] Figure 4 for Figure 1 A cross-sectional view of the BB.

[0031] Figure 5 This is a schematic diagram of the connection structure between the base and the roof luggage rack body in this application.

[0032] Figure 6 for Figure 5 Cross-sectional view of CC.

[0033] Figure 7 This is a schematic diagram of the structure in which the spotlights in this application are arranged on the roof luggage rack body.

[0034] Figure 8 for Figure 7 Cross-sectional view of DD.

[0035] Among them, 1-luggage rack body; 11-front rod; 111-first tangent; 12-rear rod; 13-left rod; 14-right rod; 2-base; 3-spotlight; 31-second tangent; 4-cross beam; 5-spoiler net; 6-roof. DETAILED DESCRIPTION

[0036] The following will describe the implementation methods of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, not for limiting the scope of protection of the present application.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0038] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present embodiment proposes a roof luggage rack structure, including a luggage rack body 1, which is arranged above the roof 6. The luggage rack body 1 includes a front rod 11, the upper surface of the front rod 11 is set as a smooth arc surface, and the lower surface of the front rod 11 is parallel to the corresponding surface of the roof 6, wherein the first angle α between the first tangent line of the upper surface of the front rod 11 at its upper end point and the horizontal line is set at 30-45°.

[0039] It can be foreseen that when the high-speed airflow flows through the luggage rack body 1, it will be diverted at the windward surface of the front rod 11, and the high-speed airflow is divided into an upper airflow and a lower airflow. This embodiment sets the upper surface of the front rod 11 to a smooth arc surface, and sets the first angle α between the first tangent of the upper surface of the front rod 11 at its upper end point and the horizontal line to 30-45°, so that the upper airflow can flow along the upper surface of the front rod 11 without causing airflow separation. In addition, this embodiment makes the lower surface of the front rod 11 parallel to the surface of the roof 6 corresponding to the front rod 11, so that the lower airflow can flow out in parallel, thereby reducing the generation of vortices and reducing the intensity of low-frequency noise in this area.

[0040] See also Figure 1 and Figure 2 In this embodiment, the outer edge contour of the luggage rack body 1 is set the same as the outer edge contour of the roof 6, and the luggage rack body 1 is symmetrically arranged relative to the central axis of the vehicle, which can not only improve the driving stability of the vehicle, but also reduce wind noise.

[0041] See also Figure 1 and Figure 2In this embodiment, the luggage rack body also includes a rear rod 12, the upper surface of the rear rod 12 is a smooth arc surface, and the lower surface of the rear rod 12 is parallel to the corresponding surface of the roof 6, which can make the airflow below flow out in parallel, reduce the generation of vortices, and reduce the intensity of low-frequency noise in this area.

[0042] See also Figure 1 and Figure 2 In this embodiment, the luggage rack body 1 also includes a left rod 13 and a right rod 14, the left rod 13 is located on one side of the luggage rack body 1, and the two ends of the left rod 13 are respectively connected to the front rod 11 and the rear rod 12, the right rod 14 is located on the other side of the luggage rack body, and the two ends of the right rod 14 are respectively connected to the front rod 11 and the rear rod 12, wherein the distance between the roof 6 and the front rod 11 and the rear rod 12 is set at 20-30mm, and the distance between the roof 6 and the left rod 13 and the right rod 14 is set at 10-20mm. Through the above settings, wind noise can be reduced to a certain extent.

[0043] Among them, the front rod 11, the rear rod 12, the left rod 13 and the right rod 14 can all be flat rods.

[0044] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 In this embodiment, the roof luggage rack structure further includes a plurality of bases 2, one end of each of the plurality of bases 2 is connected to the left rod 13 or the right rod 14, and the other end is connected to the roof 6. The windward surface of the base 2 is set to be flat in the middle and arc-shaped on both sides, and the base 2 can be fixed by bolts. By setting the base 2, this embodiment can play a role in supporting the luggage rack body 1 and make the luggage rack body 1 suspended above the roof 6. On this basis, this embodiment can avoid the generation of noise sources at the base 2 by setting the windward surface of the base 2 to be flat in the middle and arc-shaped on both sides.

[0045] Preferably, in this embodiment, the fillet radius of the arc surface on both sides of the windward surface of the base 2 is set to 20 mm.

[0046] Among them, see Figure 1 and Figure 3 In this embodiment, the base 2 can be set to four, namely two bases 2 at the front and two bases 2 at the back. The two bases 2 at the front are respectively arranged on the left rod 13 and the right rod 14, and are symmetrically arranged. The spacing between the two bases 2 at the front and the front rod 11 is set at 200-300mm. The two bases 2 at the back are respectively arranged on the left rod 13 and the right rod 14, and are symmetrically arranged. The spacing between the two bases 2 at the back and the rear rod 12 is set at 100-200mm.

[0047] See also Figure 1 , Figure 4 and Figure 7 In order to achieve safe driving on roads with very weak light, in this embodiment, the roof luggage rack structure also includes a plurality of spotlights 3, and the front rod 11 is provided with a plurality of platform-type grooves (not shown in the figure), and the plurality of spotlights 3 are respectively arranged at the corresponding platform-type grooves, so the spotlight 3 is in the shape of a flat cylinder, and the windward surface of the spotlight 3 is set as an arc surface, and the second angle β between the second tangent line of the upper surface of the spotlight 3 at its upper end point and the horizontal line is set at -10-(-8°). Through the above-mentioned arrangement, this embodiment can avoid the risk of howling and prevent the airflow from separating and reattaching in the platform-type groove. At the same time, the airflow behind the spotlight 3 is optimized to a certain extent, which greatly reduces the intensity of the noise source in this area.

[0048] Furthermore, in this embodiment, a plurality of spotlights 3 are installed at equal intervals in the platform-shaped groove of the front bar 11 and are symmetrically arranged relative to the central axis of the vehicle. The lower surface of the spotlight 3 is in close contact with the front bar 11. Through the above arrangement, this embodiment can not only improve the driving stability of the vehicle, but also reduce wind noise.

[0049] In this embodiment, the height of the spotlight 3 is set at 40-50 mm, and the width of the spotlight 3 is set at 150-250 mm. Figure 1 , Figure 7 and Figure 8 The number of the spotlights 3 can be four, and correspondingly, four platform-shaped grooves are provided. The four spotlights 3 are installed at equal intervals at the platform-shaped groove of the front bar 11 and are symmetrically arranged relative to the central axis of the vehicle.

[0050] See also Figure 1 In order to enhance the structural strength of the luggage rack body 1, in this embodiment, the roof luggage rack structure also includes a crossbeam 4, which is arranged in the middle of the luggage rack body 1, wherein the two ends of the crossbeam 4 are respectively connected to the left rod 13 and the right rod 14, and the windward surface of the crossbeam 4 is set as a guide arc surface, and the upper surface of the crossbeam 4 is parallel to the lower surface of the crossbeam 4. In this embodiment, by setting the windward surface of the crossbeam 4 as a guide arc surface and making the upper surface of the crossbeam 4 and the lower surface of the crossbeam 4 parallel, the noise source caused by the crossbeam 4 itself can be reduced to a minimum.

[0051] In this embodiment, the distance between the cross beam 4 and the front rod 11 is set at 300-400 mm.

[0052] See also Figure 1In order to further reduce the intensity of wind noise, in this embodiment, the roof luggage rack structure also includes a spoiler net 5, which is arranged between the upper surface of the front rod 11 and the upper surface of the cross beam 4, wherein the mesh size of the spoiler net 5 is not greater than 0.1 mm. By arranging the spoiler net 5, this embodiment weakens the impact of the airflow above the luggage rack body on the roof 6, breaks up the downward pressure airflow, reduces the energy of the downward pressure airflow, and greatly reduces the intensity of the noise source above the roof 6.

[0053] Furthermore, in the present embodiment, the spoiler net 5 may be a metal wire net or an elastic gauze net, and both the metal wire net and the elastic gauze net have good noise reduction effects.

[0054] This embodiment further provides a vehicle, comprising a vehicle body and the roof luggage rack structure as described above, wherein the roof luggage rack structure is arranged on the roof of the vehicle body.

[0055] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. A roof rack structure, characterized in that: include: A luggage rack body is arranged above the roof, the luggage rack body comprises a front rod, the upper surface of the front rod is arranged as a smooth arc surface, and the lower surface of the front rod is parallel to the corresponding roof surface; Wherein, a first angle between a first tangent line of the upper surface of the front rod at its upper end point and a horizontal line is set at 30-45°.

2. The roof rack structure according to claim 1, characterized in that: The outer edge contour of the luggage rack body is arranged identically to the outer edge contour of the roof, and is arranged symmetrically relative to the central axis of the vehicle.

3. The roof rack structure according to claim 1, characterized in that: The luggage rack body also includes: The upper surface of the rear rod is a smooth arc surface, and the lower surface of the rear rod is parallel to the corresponding roof surface.

4. The roof rack structure according to claim 3, characterized in that: The luggage rack body also includes: A left rod, which is located on one side of the luggage rack body, and two ends of the left rod are respectively connected to the front rod and the rear rod; A right rod, which is located on the other side of the luggage rack body, and two ends of the right rod are respectively connected to the front rod and the rear rod; The distances between the roof and the front rod and the rear rod are respectively set at 20-30 mm, and the distances between the roof and the left rod and the right rod are respectively set at 10-20 mm.

5. The roof rack structure according to claim 1, characterized in that: The front bar is provided with a plurality of platform-shaped grooves, and the roof luggage rack structure further comprises: A plurality of spotlights are respectively arranged at the corresponding platform-type grooves, so the shape of the spotlight is a flat cylinder, the windward surface of the spotlight is set as an arc surface, and the second angle between the second tangent line of the upper surface of the spotlight at its upper end point and the horizontal line is set at -10°-(-8°).

6. The roof rack structure according to claim 5, characterized in that: A plurality of the spotlights are installed at equal intervals on the platform-shaped groove of the front bar and are symmetrically arranged relative to the central axis of the vehicle. The lower surface of the spotlight is in close contact with the front bar.

7. The roof rack structure according to claim 6, characterized in that: The roof rack structure also includes: A crossbeam is arranged on the middle part of the luggage rack body, the windward surface of the crossbeam is arranged as a flow guide arc surface, and the upper surface of the crossbeam is parallel to the lower surface of the crossbeam.

8. The roof rack structure according to claim 7, characterized in that: The roof rack structure also includes: A spoiler net is arranged between the front rod and the cross beam, wherein the mesh size of the spoiler net is not greater than 0.1 mm.

9. The roof rack structure according to claim 1, characterized in that: The roof rack structure also includes: A plurality of bases are provided, one end of which is connected to the luggage rack body and the other end is connected to the vehicle roof. The windward surface of the base is arranged to be flat in the middle and arc-shaped on both sides.

10. A vehicle, characterized in that: It comprises a vehicle body and a roof luggage rack structure as described in any one of claims 1 to 9, wherein the roof luggage rack structure is arranged on the roof of the vehicle body.

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