Roof rack assembly and vehicle

Abstract

The invention relates to a roof rack assembly and a vehicle, and the roof rack assembly comprises an illuminating lamp which comprises a shell; the luggage rack comprises a front transverse rod, the front transverse rod is arranged behind the shell in the front-back direction of the vehicle, and the front transverse rod is connected with the shell; the maximum height of the shell is larger than the height of the front cross rod. According to the car roof luggage rack assembly, the illuminating lamp is arranged at the front end of the luggage rack, the car roof illuminating lamp is connected with the front end of the luggage rack, the luggage rack serves as a fixing device of the illuminating lamp and also serves as an inhibiting structure of wake flow of the illuminating lamp, and noise in the full frequency domain and wind resistance of the whole car are further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of NVH and aerodynamic performance improvement, and specifically to a roof rack assembly and a vehicle. Background Art

[0002] SUVs and off-road vehicles typically have roof racks and roof lights installed on their roofs. At night, these roof lights emit high-intensity light to illuminate distant terrain, enhancing nighttime driving safety for the driver and serving as a warning to vehicles and people ahead. Roof rack spotlights are primarily designed to enhance nighttime driving safety. However, existing technologies for installing roof rack lights on the roof of vehicles create turbulence as air flows through the lights, affecting the downstream roof racks. This causes wind to strike the roof more frequently during driving, generating more noise and drag. While various technical solutions have been designed to reduce the wind noise associated with roof rack spotlights, the wind noise reduction effect has been suboptimal. The wind resistance reduction effect under different driving conditions fails to meet actual user needs. Summary of the Invention

[0003] This embodiment of the present application provides a roof rack assembly that addresses the aerodynamic performance and aeroacoustic degradation of existing roof lighting designs, proposing a series of optimization solutions. The design considers heat dissipation efficiency and structural stability, while balancing mechanical strength, practicality, and intelligent control requirements. This significantly reduces wind resistance and wind noise during vehicle operation. The following are the core technical contents and innovations of this invention, which at least partially address the aforementioned technical issues.

[0004] In order to achieve the above objectives, the first aspect of the present application provides a roof rack assembly, comprising: A lighting lamp, comprising a housing; The luggage rack includes a front crossbar disposed rearwardly of the housing along the vehicle's fore-aft direction and connected to the housing; the upper and lower edges of the front crossbar are located between the upper and lower edges of the housing in a projection along the vehicle's fore-aft direction. Optionally, the height of the housing gradually decreases along the vehicle's fore-aft direction.

[0005] Optionally, the aspect ratio of the shell and the front cross bar is greater than 4.

[0006] Optionally, a line (L1) connecting two ends of an upper curved surface (BB) from one end of the shell to the other end of the shell connected to the front crossbar is at the same level.

[0007] Optionally, at least part of the front cross bar is located within the housing.

[0008] Optionally, the connecting part of the front crossbar and the shell is provided with a sealant.

[0009] Optionally, the lighting lamp comprises a fixing frame, which is arranged in the shell and fixedly connected with the front crossbar.

[0010] Optionally, the lighting lamp comprises a light source, which is arranged in the shell, and the front surface of the shell is a light-transmitting surface.

[0011] Optionally, the lighting lamp further comprises an adjusting device, the light source is fixed on the adjusting device, and the adjusting device is connected with the fixing frame.

[0012] Optionally, the adjusting device comprises a motor, a movable frame, a fixing frame, an output shaft and a bearing, the motor is arranged in the shell and fixed on the fixing frame; the motor is provided with an output shaft, the output shaft is connected with the movable frame, and the movable frame is connected with the fixing frame through the bearing; the motor drives the output shaft to drive the movable frame to perform a pitching movement, so as to realize the pitching angle adjustment of the light source.

[0013] Optionally, the shell is provided with an air inlet, and the air inlet is arranged towards the front of the vehicle.

[0014] Optionally, the air inlet can be multiple, and the multiple air inlets are distributed along the width direction of the vehicle.

[0015] Optionally, the shell is provided with an air outlet along the height direction of the vehicle.

[0016] Optionally, the air outlet can be multiple.

[0017] Optionally, the lighting lamp comprises a first lighting lamp, a second lighting lamp and a third lighting lamp arranged side by side along the width direction of the vehicle, and the first lighting lamp, the second lighting lamp and the third lighting lamp are respectively connected with the front crossbar.

[0018] Optionally, the luggage rack comprises a middle crossbar, a rear crossbar and the front crossbar, and the middle crossbar, the rear crossbar and the front crossbar are arranged along the length direction of the vehicle.

[0019] According to the second aspect of the present application, a vehicle is provided, which comprises the luggage rack assembly as described above.

[0020] Optionally, the roof luggage rack is fixed to the roof support member through a clamping piece.

[0021] Optionally, a gap is arranged between the shell and the vehicle.

[0022] Optionally, the midpoint of the line (L2) connecting the lower curved surface (AA) of the shell from one end to the other end of the shell to the front crossbar is parallel to the tangent (L3) at the intersection (C) of the roof vertical line (L4) and the roof.

[0023] The roof luggage rack assembly of the embodiment of the application can effectively reduce wind resistance and wind noise in different driving states, such as turning and high-speed driving, by installing the illuminating lamp at the front end of the luggage rack. The illuminating lamp is installed at the front end of the luggage rack, can play an air guiding role, and can also make the structure more compact, reduce the area occupied by the illuminating lamp and the luggage rack on the roof, and make the roof look more beautiful. The illuminating lamp has an aerodynamic shape, and after high-speed airflow flows through the illuminating lamp, the illuminating lamp is located in the sunroof and sky screen area, and no obvious vortex area is generated, thereby greatly reducing wind noise.

[0024] Other features and advantages of the application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] In order to more completely understand the application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0027] Figure 1 The luggage rack assembly structure provided by the embodiment of the application Figure 2 The luggage rack provided by the embodiment of the application Figure 3 The shell and the front crossbar structure provided by the embodiment of the application Figure 4 The shell structure provided by the embodiment of the application Figure 5 The illuminating lamp external structure provided by the embodiment of the application

[0028] Illuminating lamp, 2-luggage rack, 3-support frame, 4-roof sunroof, 5-front, 21-clamping piece, 22-front crossbar, 23-middle crossbar, 24-rear crossbar 111 - housing, 112 - bracket, 113 - light source, 114 - adjusting device, 115 - motor, 116 - bracket, 117 - movable bracket, 118 - bearing, 119 - output shaft, 11 - first lighting lamp, 12 - second lighting lamp, 13 - third lighting lamp, 102 - air inlet, 103 - air outlet DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0030] According to the first aspect of the present application, referring to Figures 1-3 As shown in the figure, a roof rack assembly is provided, comprising: a lighting lamp 1 and a rack 2, wherein the lighting lamp 1 comprises a housing 111, the rack 2 comprises a front crossbar 22, the front crossbar 22 is arranged behind the housing 111 along the vehicle front-rear direction, the front crossbar 22 is connected with the housing 111, and the upper edge and the lower edge of the front crossbar are located between the upper edge and the lower edge of the housing in the projection along the vehicle front-rear direction. The lighting lamp mentioned in the present application is installed at the front end of the front crossbar. When the vehicle is running, high-speed airflow passes through the lighting lamp to reach the front crossbar. Since the lighting lamp and the front crossbar are in a close horizontal plane and form an integrated structure, vortex will not be formed during vehicle running, effectively reducing wind noise, and the function of night driving illumination can be realized.

[0031] In some embodiments, the total height of the housing 111 and the front crossbar 22 gradually decreases along the vehicle front-rear direction. The aerodynamic design of the housing of the prior art roof lighting lamp is not good, and the lighting lamp is directly exposed to high-speed air, and the interaction of airflow will generate Karman vortex, thereby inducing the occurrence of low-frequency boom sound, also known as narrowband noise problem. The lighting lamp housing is designed to gradually decrease in height along the vehicle front-rear direction, which maximizes the use of aerodynamics to reduce the momentum loss of the incoming flow area at the transition between the front windshield and the roof, improve the flow efficiency, further guide the direction of the roof airflow and control the size of the roof airflow, and achieve the effect of maximum reduction of wind noise.

[0032] In some embodiments, the height of the shell 111 gradually decreases along the front-rear direction of the vehicle, which is to control the generation of Karman vortex. Karman vortex is related to the velocity and the characteristic length of the height direction. The lower the velocity, the smaller the characteristic length, and the smaller the influence of Karman vortex. Therefore, the height of the shell gradually decreases along the front-rear direction of the vehicle, and the tail of the front crossbar also gradually decreases. The length of the shell cannot be too short, because too short will cause the transition of the curved surface to be too fast, resulting in local separation. In some specific embodiments, the length is 250 mm and the height is 60 mm.

[0033] In some embodiments, the upper curved surface (BB) of the shell 111 at one end and the upper curved surface (BB) of the shell 111 at the other end connected to the front crossbar 22 are at the same level. The possible angle is 0±1°, because the upper surface of the shell is far away from the roof, the airflow is less affected by the roof, and the deflection is small, so 0° is used as the design requirement for the steady atmospheric flow, which is beneficial to the flow state of the upper surface and avoids local separation. In some specific embodiments, the angle is 0.8°.

[0034] In some embodiments, at least part of the front crossbar 22 is located in the shell 111. The height of the front crossbar first increases and then decreases, and the interface shape in the width direction remains basically unchanged.

[0035] In some embodiments, the connection part of the front crossbar 22 and the shell 111 is provided with sealing glue. Sealing glue is a kind of adhesive used to fill the gap between structures and play a sealing role. The main functions include leakage prevention, waterproof, vibration prevention, sound insulation and heat insulation. The connection part of the front crossbar and the shell is sealed with sealing glue, which can effectively prevent rainwater or dust from entering the shell through the connection part, and effectively prevent the lighting lamp from entering water or dust.

[0036] In some embodiments, the lighting lamp 1 includes a fixing frame 116, which is arranged in the shell 111 and fixedly connected with the front crossbar 22. Preferably, the fixing frame 116 is arranged at the bottom of the front crossbar 22, which is more conducive to installation and saves time.

[0037] In some embodiments, the illumination lamp 1 comprises a light source 113 arranged in the housing 111, and the front surface of the housing 111 is a light-transmitting surface. The light emitted by the light source 113 can directly penetrate the surface of the housing 111. Such a design is beneficial to ensuring that the oncoming vehicle can recognize the driving vehicle in advance when driving at night, and can also provide illumination for the driving vehicle, thereby improving the safety of driving at night. Compared with the prior art of integrating a spotlight into the luggage rack platform and adding a rotating spotlight structure in the front part of the luggage rack, the anti-wind noise reduction effect is not the same when the spotlight is turned off and turned on. When the spotlight is turned on, the effect of reducing wind noise cannot be effectively achieved. In the present application, the connection structure between the spotlight and the luggage rack will not change when the vehicle illumination lamp is turned on or turned off at low speed or high speed, which can adapt to various driving scenes and working conditions and has the effect of high-efficiency anti-wind noise reduction.

[0038] In some embodiments, the illumination lamp 1 further comprises an adjusting device 114, and the light source 113 is fixed on the adjusting device 114, and the adjusting device 114 is connected with the fixing frame 112.

[0039] Referring to Figures 3-4 As shown in the figure, the adjusting device 114 comprises a motor 115, a movable frame 117, a fixed frame 116, an output shaft 119 and a bearing 118. The motor 115 is arranged in the housing 111 and fixed on the fixed frame 116. The motor 115 is provided with the output shaft 119, and the output shaft 119 is connected with the movable frame 117. The movable frame 117 is connected with the fixed frame 116 through the bearing 118. The motor 115 drives the output shaft 119 to drive the movable frame 117 to pitch, so as to realize the pitch angle adjustment of the light source.

[0040] In the present application, the roof illumination lamp can adjust the pitch of the illumination lamp through the motor. The headlamp angle can be adjusted according to the actual road conditions, and long-range or short-range irradiation can be performed. The irradiation direction of the headlamp is appropriate in different environments such as uphill or downhill, and the potential risks caused by the visual blind area are reduced. In addition, the roof lamp of some vehicle models also has a reading mode, which can adjust the light brightness and angle to meet the needs of passengers reading in the vehicle, thereby improving the safety and convenience. The color and brightness of the roof lamp of the vehicle can be adjusted, and the driving experience and comfort can be improved by reasonably setting the linkage mode and adjusting the light.

[0041] In some embodiments, referring to Figure 5As shown, the shell 111 is provided with an air inlet 102, which is arranged towards the front of the vehicle. The air inlet 102 is arranged on the shell 111, and during the operation of the vehicle, external cold air can be sucked into the shell 111 through the air inlet 102 to cool the illuminating lamp 1. This design avoids the extra energy consumption and noise caused by the traditional cooling method (such as fan), significantly improves the energy utilization efficiency and operation silence of the illuminating lamp, and prolongs its service life.

[0042] In some embodiments, the air inlet 102 can be multiple, and the multiple air inlets 102 are distributed along the width direction of the vehicle. The air inlets 102 are arranged on the side of the shell 111 facing the vehicle head, and preferably on both sides of the shell 111. The arrangement of multiple air inlets 102 is conducive to quickly cooling the high-temperature air in the shell 111 by using the cold air entering the shell 111 when the vehicle is running.

[0043] In some embodiments, the shell 111 is provided with an air outlet 103 along the height direction of the vehicle. The present application is suitable for illuminating lamps of various powers, and most preferably for high-power illuminating lamps. The most advantage of arranging the air outlet 103 on the shell 111 is that it does not require additional space and devices, and can achieve natural cooling of the illuminating lamp by using the airflow generated during the running of the vehicle.

[0044] In some embodiments, the air outlet 103 can be multiple. The arrangement of multiple air outlets is conducive to forming multiple air outlet channels and accelerating the air flow in the shell, thereby effectively improving the heat dissipation efficiency of the high-power illuminating lamp.

[0045] In some embodiments, the illumination lamp 1 comprises a first illumination lamp 11, a second illumination lamp 12 and a third illumination lamp 13 arranged side by side along the vehicle width direction, and the first illumination lamp 11, the second illumination lamp 12 and the third illumination lamp 13 are respectively connected with the front cross bar 22. The illumination lamp can be a fog lamp, such as a spotlight or a floor lamp. In the present application, the inner and outer structures of the first illumination lamp 11, the second illumination lamp 12 and the third illumination lamp 13 are preferably the same, and the same structure design is beneficial to airflow in the same horizontal plane during high-speed driving, effectively reducing wind resistance and wind noise; the first illumination lamp 11 is connected with the front cross bar 22, the second illumination lamp 12 is connected with the front cross bar 22, and the third illumination lamp 13 is connected with the front cross bar 22. The connection result ensures that the illumination lamp 1 and the front cross bar 22 have multiple connection points, and the connection between the illumination lamp and the front cross bar is more stable and safe under the condition of strong wind resistance during high-speed driving; the first illumination lamp, the second illumination lamp and the third illumination lamp are fixedly connected with each other and communicate with each other, and such an integrated structure is beneficial to reducing wind resistance and wind noise. In the present application, the number of illumination lamps is not limited. The luggage rack 2 is arranged above the roof and above the roof window 4, behind the front cover 5, and the illumination lamp 1 is connected with the front cross bar 22, that is, the illumination lamp is connected with the front end of the luggage rack in the front-rear direction of the vehicle. Therefore, the illumination lamp has a large stable mounting surface, and multiple illumination lamps can be designed according to the illumination requirements to enhance the night illumination effect and driving safety.

[0046] As shown in Figure 2 In some embodiments, the luggage rack comprises a middle cross bar 23 and a rear cross bar 24 arranged along the length direction of the vehicle. The middle cross bar 23 and the rear cross bar 24 can fix large-volume luggage, bicycles, folding beds and other objects on the cross bar, thereby expanding the loading capacity of the vehicle and enabling these objects that cannot be placed in the trunk to be conveniently carried; the middle cross bar 23 and the rear cross bar 24 can also provide additional support points when installing a roof tent, thereby enhancing the stability and load-bearing capacity of the tent and protecting the roof from being dented and damaged; the design of the three cross bars, i.e., the front cross bar 22, the middle cross bar 23 and the rear cross bar 24, also helps to reduce wind resistance and wind noise during vehicle driving.

[0047] In a second aspect, the present application provides a vehicle comprising the roof luggage rack assembly described above. The vehicle has the beneficial effects of the roof luggage rack assembly described above, which will not be repeated here.

[0048] The vehicle can be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, and the present application does not make specific limitations thereto.

[0049] In some embodiments, the roof rack is fixed to the roof support 3 by the clamping piece 21. In the present application, the roof rack is fixed to the roof support 3 by the clamping piece 21, so that the wind resistance received during driving of the vehicle is higher, and the roof rack 2 can be fixed to the roof by the clamping piece 21 to reduce the energy consumed by the vehicle during driving, that is, to achieve a driving state with lower wind resistance and lower energy consumption. The luggage rack can be detachably installed, and other devices such as a roof tent and a luggage bag can also be installed and unloaded on the roof. The clamping piece can be a jaw type connecting assembly, which can install the spotlight and the luggage rack on the roof, and the installation is firm and reliable, simple and convenient to operate, and can be installed without damaging the roof without punching holes in the roof position.

[0050] As shown in Figure 1 The outer edge profile of the luggage rack is the same as the outer edge profile of the roof, and it is symmetrically arranged relative to the center axis of the vehicle. The windward surface of the roof support 3 is arranged as a flat middle and a circular arc surface on both sides, which can avoid noise at the support 3.

[0051] In some embodiments, the shell is arranged with a gap relative to the vehicle. The gap is beneficial for balancing the airflow above and below the lighting lamp, avoiding the upper air flow being too large and the lower air flow causing the upper air flow to be inducted, and achieving a better noise reduction effect.

[0052] In some embodiments, the midpoint of the line (L2) connecting the lower curved surface of one end of the shell 111 to the other end of the shell 111 connected to the front cross bar 22 is parallel to the tangent line (L3) at the intersection (C) of the vertical line (L4) of the roof and the roof. The possible angle is parallel angle ± 3°, and in some specific embodiments, the angle is 8.2°, and the horizontal angle of the roof tangent line is 6.2°. The parallel arrangement can better fit the direction of the airflow, and the airflow of the roof is parallel to the roof, so that the airflow is not easily divided and noise is not easily formed, and a better noise reduction effect is achieved. The vehicle provided by the present application has a luggage rack assembly arranged on the roof, which has the functions of lighting and air guiding, greatly saves the roof space, is easy to disassemble and assemble, and has the advantages of reducing wind resistance and wind noise. The front cross bar of the luggage rack can be used for air guiding to reduce the wind resistance and wind noise of the vehicle during driving. In addition, the lighting lamp is arranged on the front cross bar, which not only has the functions of lighting, air guiding and wind noise reduction, but also makes the structure more compact, reduces the area occupied by the spotlight and the luggage rack on the roof, and makes the roof look more beautiful.

[0053] In the description of the application, the terms "first", "second", "third" and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0055] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0056] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment in accordance with the technical essence of the present application without departing from the technical solution content of the present application still falls within the scope of the technical solution of the present application.

Claims

1. A roof rack assembly, characterized in that: include: A lighting lamp, comprising a housing; A luggage rack, the luggage rack comprising a front crossbar, the front crossbar being arranged behind the housing along the front-to-back direction of the vehicle and connected to the housing; In a projection along the front-rear direction of the vehicle, an upper edge and a lower edge of the front cross bar are located between an upper edge and a lower edge of the housing.

2. The roof rack assembly according to claim 1, characterized in that: The height of the structure of the shell and the front crossbar gradually decreases along the front-rear direction of the vehicle.

3. The roof rack assembly according to claim 2, characterized in that: The aspect ratio of the housing and the front crossbar is greater than 4.

4. The roof rack assembly according to claim 2-3, characterized in that: A connecting line (L1) between two ends of an upper curved surface (BB) connected to the front crossbar from one end of the housing to the other end of the housing is at the same level.

5. The roof rack assembly according to claim 1, characterized in that: At least a portion of the front crossbar is located within the housing.

6. The roof rack assembly according to claim 5, characterized in that: The connection portion between the front cross bar and the shell is provided with sealant.

7. The roof rack assembly according to claim 5, characterized in that: The lighting lamp includes a fixing frame, which is arranged in the shell and fixedly connected to the front cross bar.

8. The roof rack assembly according to claim 1, characterized in that: The lighting lamp includes a light source, which is arranged in the shell, and the front surface of the shell is a light-transmitting surface.

9. The roof rack assembly according to claim 7-8, characterized in that: The lighting lamp further comprises an adjusting device, the light source is fixed on the adjusting device, and the adjusting device is connected to the front cross bar.

10. The adjustment device according to claim 9, characterized in that The adjustment device includes a motor, a movable frame, a fixed frame, an output shaft, and a bearing. The motor is arranged in the housing and fixed on the fixed frame. The motor is provided with an output shaft, which is connected to the movable frame, and the movable frame is connected to the fixed frame through a bearing. The motor drives the output shaft to drive the movable frame to pitch, thereby realizing the pitch angle adjustment of the light source.

11. The roof rack assembly according to claim 1, characterized in that: The shell is provided with an air inlet, and the air inlet is arranged toward the front of the vehicle.

12. The roof rack assembly according to claim 11, characterized in that: There may be multiple air inlets, and the multiple air inlets are distributed along the width direction of the vehicle.

13. The roof rack assembly according to claim 1, wherein: The shell is provided with an air outlet along the height direction of the vehicle.

14. The roof rack assembly according to claim 13, wherein: There may be multiple air outlets.

15. The roof rack assembly according to claim 1, wherein: The lighting lamps include a first lighting lamp, a second lighting lamp, and a third lighting lamp arranged side by side along the vehicle width direction, and the first lighting lamp, the second lighting lamp, and the third lighting lamp are respectively connected to the front cross bar.

16. The roof rack assembly according to claim 1, wherein: The luggage rack includes a middle cross bar, a rear cross bar and the front cross bar, and the middle cross bar, the rear cross bar and the front cross bar are arranged along the length direction of the vehicle.

17. A vehicle, characterized in that: The invention comprises a roof rack assembly according to any one of claims 1 to 16.

18. A vehicle according to claim 17, characterized in that: The roof luggage rack is fixed to the roof support member via a clamping member.

19. The vehicle according to claim 18, wherein a gap is provided between the housing and the vehicle.

20. The roof rack assembly according to claim 19, wherein: The midpoint of the line (L2) connecting one end of the shell to the lower curved surface (AA) connected to the other end of the shell and the front crossbar is parallel to the tangent line (L3) at the intersection point (C) of the roof vertical line (L4) and the roof.

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