Carriage top plate, carriage and vehicle

Abstract

The utility model provides a carriage top plate, a carriage and a vehicle, the carriage top plate comprises a top plate body; the air guide protrusions are sequentially arranged on the top face of the top plate body in the longitudinal direction of the vehicle, and the air guide protrusions extend in the transverse direction of the vehicle; the air guide protrusion comprises a windward side which is located on the side, facing a vehicle head, of the air guide protrusion, and the windward side inclines upwards from the position of the top plate body from the front end to the rear end. The leeside is located on the side, back to the vehicle head, of the air guide protrusion, and the rear end of the leeside is connected with the top plate body; the transition surface is smoothly connected with the rear end of the windward surface and the front end of the leeward surface; the front end of the windward side is close to the headstock, and the rear end of the windward side is far away from the headstock; the front end of the leeside is close to the headstock, and the rear end of the leeside is far away from the headstock. The air guide protrusions can optimize the aerodynamic performance of the top of the compartment, it is ensured that airflow can smoothly bypass the top of the compartment during high-speed driving, airflow separation is reduced, and then wind resistance is reduced, so that energy consumption is reduced, and meanwhile noise is improved.

Description

Technical Field

[0001] This application relates to the field of carriage technology, specifically to a carriage roof panel, and also to a carriage and vehicle. Background Technology

[0002] Light-duty vans are the main vehicle type for urban logistics and short-distance transportation, carrying various goods through their cargo boxes. The cargo box consists of a floor, roof, and side panels that enclose the load-bearing space. Due to their large size, they are prone to generating significant wind resistance.

[0003] Existing roof structures for passenger compartments mainly include flat-top and corrugated types, but these structures are prone to generating vortices or airflow separation, offering limited effectiveness in optimizing aerodynamic performance. During vehicle operation, especially at high speeds, airflow separation zones can easily form on the roof, leading to significant wind resistance, increased energy consumption, and noise generation. Utility Model Content

[0004] The purpose of this application is to provide a roof panel, a carriage, and a vehicle to reduce wind resistance, thereby reducing energy consumption and improving noise levels.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A vehicle roof panel includes a roof panel body; a plurality of air-guiding protrusions are arranged sequentially along the longitudinal direction of the vehicle on the top surface of the roof panel body, and the air-guiding protrusions extend laterally along the vehicle; the air-guiding protrusions include:

[0007] The windward surface is located on the side of the air guide protrusion facing the front of the vehicle, and the windward surface slopes upward from the front end to the rear end, starting from the position of the top plate body;

[0008] The leeward side is located on the side of the air guide protrusion facing away from the front of the vehicle, and the rear end of the leeward side is connected to the top plate body;

[0009] A transition surface that smoothly connects the rear end of the windward side and the front end of the leeward side;

[0010] The front end of the windward side is the end closest to the front of the vehicle, and the rear end of the windward side is the end furthest from the front of the vehicle; the front end of the leeward side is the end closest to the front of the vehicle, and the rear end of the leeward side is the end furthest from the front of the vehicle.

[0011] Optionally, in the above-mentioned carriage roof panel, the leeward side slopes upward from the rear end to the front end, starting from the position of the roof panel body.

[0012] Optionally, in the above-mentioned roof panel, the acute angle formed by the windward side and the horizontal plane containing the top surface of the roof panel body is smaller than the acute angle formed by the leeward side and the horizontal plane containing the top surface of the roof panel body.

[0013] Optionally, in the aforementioned carriage roof panel, both ends of the air guide protrusion are connected to the roof panel body via streamlined air guide sections; the streamlined air guide section includes:

[0014] The curved bottom edge connects the front end of the windward side to the rear end of the leeward side, and the curved bottom edge is connected to the top plate body;

[0015] The air guide longitudinal edge extends longitudinally along the vehicle and smoothly connects to the end of the air guide protrusion. The air guide longitudinal edge includes a windward section, a transition section, and a leeward section. The windward section extends backward and slopes upward from the position where the arc-shaped bottom edge connects to the front end of the windward surface. The leeward section extends forward and slopes upward from the position where the arc-shaped bottom edge connects to the rear end of the leeward surface. The transition section smoothly connects the top of the windward section and the top of the leeward section and is lower than the transition surface.

[0016] The streamlined air guide surface smoothly connects the arc-shaped bottom edge and the longitudinal edge of the air guide surface, and the streamlined air guide surface protrudes upward from the end away from the air guide protrusion to the end closer to the air guide protrusion.

[0017] Optionally, in the above-mentioned carriage roof panel, the arc-shaped bottom edge is semi-circular, and the streamlined air guide surface is a downward curved surface along the vehicle's transverse direction.

[0018] Optionally, the aforementioned roof panel also includes a roof panel crossbeam, which is arranged laterally along the vehicle body at the bottom of the roof panel body.

[0019] Optionally, the aforementioned carriage roof panel may also include:

[0020] Front frame, connected to the front side of the top plate body;

[0021] The rear frame is connected to the rear side of the top plate body;

[0022] The left frame is connected to the left side of the top plate body;

[0023] The right frame is connected to the right side of the top plate body, and the two ends of the top plate beam are respectively connected to the left frame and the right frame;

[0024] Wherein, the front frame, the left frame, the rear frame, and the right frame are all sealed together;

[0025] The outer surfaces of the front frame, the left frame, and the right frame are all smooth transition surfaces that connect the top surface of the top plate body to the outer side surface of the carriage side plate.

[0026] The rear frame includes a wind-guiding plane that is flush with the top surface of the top plate body.

[0027] Optionally, in the above-mentioned roof panel, the roof panel crossbeam, the front frame, the left frame, the rear frame, and the right frame are all welded to the roof panel body, and adjacent frames of the front frame, the left frame, the rear frame, and the right frame are welded together. The two ends of the roof panel crossbeam are welded together to the left frame and the right frame, respectively.

[0028] And / or, the top plate body, the top plate crossbeam, the front frame, the left frame, the rear frame and the right frame are all lightweight high-strength steel components.

[0029] As can be seen from the above technical solution, in the car roof provided by this application, the windward surface and the transition surface of the air guide protrusion form a wind guide surface that is gently protruding from front to back and has a smooth top. With this configuration, during vehicle operation, the airflow can adhere to the windward surface and flow slowly upward along the windward surface to the transition surface, and then flow backward from the transition surface.

[0030] The windward surface slopes upward from front to back, effectively guiding airflow. The transition surface smoothly rounds the top of the air guide protrusion, reducing airflow impact and minimizing rear vortices. This optimizes the aerodynamic performance of the vehicle's roof, ensuring smooth airflow around it at high speeds, reducing airflow separation, lowering wind resistance, reducing energy consumption, and improving vehicle operating efficiency. It also enhances vehicle stability, reduces vibration during driving, improves noise levels, and enhances the driving experience.

[0031] In addition, this application significantly reduces vehicle fuel consumption and operating costs by reducing wind resistance, while also reducing carbon emissions, thus meeting environmental protection requirements.

[0032] This application also provides a carriage, including a carriage side panel and a carriage roof panel disposed on top of the carriage side panel. The carriage roof panel is any of the carriage roof panels described above. Since the carriage roof panel has the above-mentioned effects, the carriage with the carriage roof panel has the same effects, so it will not be described again here.

[0033] This application also provides a vehicle including the aforementioned carriage. Since the aforementioned carriage has the aforementioned effects, and a vehicle having the aforementioned carriage has the same effects, it will not be described in detail here. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be introduced below. The accompanying drawings described below are merely embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0035] Figure 1 A schematic diagram of the rear upper side structure of an exemplary carriage, consistent with some embodiments of this application, is shown.

[0036] Figure 2 A schematic diagram of the upper right side structure of an exemplary carriage consistent with some embodiments of this application is shown;

[0037] Figure 3 It shows Figure 2 Enlarged view of a local structure in the image;

[0038] Figure 4 An enlarged view of an exemplary air guide protrusion consistent with some embodiments of this application is shown;

[0039] Figure 5 A left view of an exemplary front structure of a carriage, consistent with some embodiments of this application, is shown;

[0040] Figure 6 It shows Figure 5 A schematic diagram of a partial structural section;

[0041] Figure 7 A top view of an exemplary rear compartment structure consistent with some embodiments of this application is shown;

[0042] Figure 8 A schematic cross-sectional view of a partial structure of the rear of a carriage, consistent with some embodiments of this application, is shown.

[0043] Figure 9 A schematic diagram of the overall airflow of a vehicle including a compartment according to some embodiments of this application is shown.

[0044] superior Figure 1-8 middle:

[0045] 1-Top panel body; 2-Left frame; 3-Top panel crossbeam; 4-Rear frame; 5-Right frame; 6-Front frame; 7-Air guide protrusion; 8-Streamlined air guide section;

[0046] 71-Windward side; 72-Transitional side; 73-Leisure side;

[0047] 81-Curved bottom edge; 82-Streamlined air guide surface; 83-Longitudinal air guide edge. Detailed Implementation

[0048] The embodiments of this application will be described below. It should be noted that, in order to provide a concise description of these embodiments, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, changes may occur from one embodiment to another to achieve specific objectives. Furthermore, it is also understood that, although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content of this application, some design, manufacturing, or production modifications based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient content of this application.

[0049] like Figures 1-8 As shown, the vehicle roof panel provided in this embodiment includes a roof panel body 1; a plurality of air-guiding protrusions 7 are arranged sequentially on the top surface of the roof panel body 1 along the longitudinal direction of the vehicle, and the air-guiding protrusions 7 extend laterally along the vehicle; the air-guiding protrusions 7 include: a windward surface 71, located on the side of the air-guiding protrusion 7 facing the front of the vehicle, the windward surface 71 is inclined upward from the front end to the rear end and from the position of the roof panel body 1; a leeward surface 73, located on the side of the air-guiding protrusion 7 away from the front of the vehicle, the rear end of the leeward surface 73 is connected to the roof panel body 1; a transition surface 72, smoothly connecting the rear end of the windward surface 71 and the front end of the leeward surface 73; wherein, the front end of the windward surface 71 is the end closer to the front of the vehicle, and the rear end of the windward surface 71 is the end farther away from the front of the vehicle; the front end of the leeward surface 73 is the end closer to the front of the vehicle, and the rear end of the leeward surface 73 is the end farther away from the front of the vehicle.

[0050] It should be noted that the vehicle's lateral direction, or Y-axis, refers to the width of the vehicle, i.e., the left-right direction; the vehicle's longitudinal direction, or X-axis, refers to the length of the vehicle, i.e., the front-back direction.

[0051] The roof panel body 1 is the main exposed part of the vehicle roof panel, which directly affects the vehicle's aerodynamic performance and appearance. In the vehicle roof panel provided in this application embodiment, the windward surface 71 and the transition surface 72 of the air guide protrusion 7 form a wind guide surface that protrudes gently from front to back and has a smooth top; with this arrangement, during vehicle operation, the airflow can adhere to the windward surface 71 and flow slowly upward along the windward surface 71 to the transition surface 72, and then flow backward from the transition surface 72.

[0052] The windward surface 71 slopes upward from front to back, which can effectively guide the airflow. The transition surface 72 makes the top of the air guide protrusion 7 smoothly transition, which can reduce the impact on the airflow and reduce the vortex at the rear. Therefore, it can optimize the aerodynamic performance of the top of the vehicle body, ensure that the airflow can smoothly bypass the top of the vehicle body when driving at high speed, reduce airflow separation, thereby reducing wind resistance, reducing energy consumption, and improving the vehicle's operating efficiency. At the same time, it enhances the vehicle's stability, reduces vibration during driving, improves noise issues, and enhances the driving experience.

[0053] In addition, this embodiment significantly reduces vehicle fuel consumption and operating costs by reducing wind resistance, while also reducing carbon emissions, thus meeting environmental protection requirements.

[0054] In some embodiments, the leeward side 73 slopes upward from the rear end to the front end, starting from the position of the top plate body 1. For example... Figure 5 , Figure 6 , Figure 8 As shown, the leeward side 73 is inclined downward from front to back, which can play a good buffering role for airflow and at the same time facilitate the diversion of airflow from the front guide protrusion 7 to the rear guide protrusion 7; it can reduce the vortex between the guide protrusions 7 and further reduce wind resistance.

[0055] With this configuration, the top surface formed by the windward side 71, the leeward side 73, and the transition surface 72 of the air guide protrusion 7 all adopt a streamlined design, which optimizes the airflow adhesion state and reduces wind resistance.

[0056] In some embodiments, the acute angle formed by the windward side 71 and the horizontal plane containing the top surface of the top plate body 1 is smaller than the acute angle formed by the leeward side 73 and the horizontal plane containing the top surface of the top plate body 1. Optionally, the acute angle formed by the windward side 71 and the horizontal plane containing the top surface of the top plate body 1 is 10°-12° smaller than the acute angle formed by the leeward side 73 and the horizontal plane containing the top surface of the top plate body 1; thus, the windward side 71 is closer to the top plate body 1, with a smoother surface, ensuring smoother airflow and better wind resistance reduction; the leeward side 73 occupies a smaller front-to-back dimension than the windward side 71, which is more conducive to the rearward flow of airflow. Figure 6 , Figure 8 As shown, for example, the acute angle formed by the windward side 71 and the horizontal plane where the top surface of the top plate body 1 is located is 15°, and the acute angle formed by the leeward side 73 and the horizontal plane where the top surface of the top plate body 1 is located is 26°, with a difference of 11° between the two.

[0057] Optionally, the windward side 71 has the same longitudinal dimension as the vehicle, and the leeward side 73 and the transition side 72 have the same longitudinal dimension as the vehicle; this facilitates manufacturing and occupies a more compact space.

[0058] In some embodiments, both ends of the air guide protrusion 7 are connected to the top plate body 1 through a streamlined air guide portion 8; the streamlined air guide portion 8 includes an arc-shaped bottom edge 81, which connects the front end of the windward surface 71 and the rear end of the leeward surface 73, and the arc-shaped bottom edge 81 is connected to the top plate body 1; the air guide longitudinal edge 83 extends longitudinally along the vehicle and is smoothly connected to the end of the air guide protrusion 7, the air guide longitudinal edge 83 includes a windward section, a transition section and a leeward section, the windward section slopes backward and upward from the position where the arc-shaped bottom edge 81 is connected to the front end of the windward surface 71, the leeward section slopes forward and upward from the position where the arc-shaped bottom edge 81 is connected to the rear end of the leeward surface 73, the transition section smoothly connects the top end of the windward section and the top end of the leeward section and is lower than the transition surface 72; the streamlined air guide surface 82 smoothly connects the arc-shaped bottom edge 81 and the air guide longitudinal edge 83, the streamlined air guide surface 82 protrudes upward from the end away from the air guide protrusion 7 to the end close to the air guide protrusion 7.

[0059] like Figure 3 , Figure 4 , Figure 7 As shown, the two ends of the air guide protrusion 7 are smoothly connected to the top plate body 1 through the streamlined air guide part 8 formed by the arc-shaped bottom edge 81, the air guide longitudinal edge 83 and the streamlined air guide surface 82. This can optimize the aerodynamic performance of the left and right ends of the top of the carriage, reduce airflow separation, and further reduce wind resistance.

[0060] With this configuration, the air guide protrusion 7 and the positions where it connects to the top plate body 1 form a smooth surface curve with a natural transition arc, presenting an overall streamlined teardrop shape design that mimics the flow characteristics of water droplets in nature. This reduces the wind resistance of the air guide protrusion 7 and the two ends of the air guide protrusion 7, further optimizing aerodynamic performance.

[0061] The streamlined air guide section 8 has a front-to-back length (i.e., along the vehicle's longitudinal dimension) of 150-180mm, for example, 166mm; a left-to-right length (i.e., along the vehicle's lateral dimension) of 75-90mm, for example, 86mm; and a height (i.e., along the vehicle's vertical dimension) of 20-30mm, for example, 25mm. There is a gap between adjacent air guide protrusions 7, with the top ends spaced 200-230mm apart, for example, 216mm. This design avoids being too large or too small, which could affect the aerodynamic performance of the vehicle's roof and effectively reduce wind resistance.

[0062] like Figure 7 As shown, in some embodiments, the arc-shaped bottom edge 81 is semi-circular, with a regular and simple shape, making it easy to form. The streamlined air guide surface 82 is a downward-curving surface along the vehicle's transverse direction, such as... Figure 5 As shown, this closer proximity to the top plate body 1 and the smoother curvature facilitate airflow, optimizes the aerodynamic performance of the left and right ends of the carriage top, and further reduces wind resistance.

[0063] In some embodiments, the roof panel further includes a roof beam 3, which is transversely arranged at the bottom of the roof panel body 1 along the vehicle body. The roof beam 3, as the core supporting structure of the roof panel, supports and fixes the roof panel body 1, ensuring the overall rigidity and stability of the roof panel. Figure 1 , Figure 2 As shown, there can be multiple roof beams 3, which are distributed between two adjacent air guide protrusions 7. For example, there are three roof beams 3, which are evenly distributed along the longitudinal direction of the vehicle on the roof body 1.

[0064] In some embodiments, the roof panel further includes a front frame 6 connected to the front side of the roof panel body 1; a rear frame 4 connected to the rear side of the roof panel body 1; a left frame 2 connected to the left side of the roof panel body 1; and a right frame 5 connected to the right side of the roof panel body 1. The two ends of the roof panel crossbeam 3 are respectively connected to the left frame 2 and the right frame 5. Adjacent pairs of the front frame 6, left frame 2, rear frame 4, and right frame 5 are sealed together. The outer surfaces of the front frame 6, left frame 2, and right frame 5 are all smooth transition surfaces 72 that smoothly connect the top surface of the roof panel body 1 to the outer surface of the side panel of the vehicle compartment. The rear frame 4 includes a guide plane flush with the top surface of the roof panel body 1.

[0065] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the front frame 6 is located at the front end of the carriage roof panel, connecting the roof panel body 1 and the front structure of the carriage. The smooth transition surface 72 on the outer surface of the front frame 6 optimizes the airflow entry, guiding the airflow smoothly into the surface of the roof panel body 1 and reducing airflow impact. The left frame 2 serves as the left boundary structure of the carriage roof panel, connecting the roof panel body 1 and the left side panel of the carriage, ensuring the side sealing and structural integrity of the carriage roof panel. The right frame 5 serves as the right boundary structure of the carriage roof panel, connecting the roof panel body 1 and the right side panel of the carriage; its function is the same as the left frame 2, ensuring the left-right symmetry and right-side sealing of the carriage roof panel. Figures 7-8 As shown, the rear frame 4 is located at the rear end of the roof panel of the carriage, connecting the roof panel body 1 with the rear structure of the carriage. The air guiding plane of the rear frame 4 is a smooth horizontal surface, which guides the airflow to flow out smoothly, reduces airflow separation and eddies, optimizes the airflow state, and reduces noise.

[0066] The front frame 6, left frame 2, and rear frame 4 all feature smooth transition surfaces 72 with large rounded corners or chamfers, optimizing airflow, reducing airflow resistance, and avoiding interference from sharp edges. These three frames can be curved or L-shaped with rounded outer surfaces. The radius R of the smooth transition surface 72 can be 60mm-80mm, effectively buffering airflow.

[0067] A water channel can also be installed at the rear end of the rear frame 4 air guide plane to drain the water accumulated on the top of the carriage roof to the left and right sides.

[0068] During vehicle operation, air enters the roof area from the front of the vehicle and flows smoothly along the front frame 6; then the air flows along the surface of the roof body 1 and passes through the air guide protrusion 7 to reduce airflow separation; finally, the airflow is guided to the rear of the vehicle and flows smoothly out along the rear frame 4 to reduce turbulence and noise.

[0069] like Figure 9 The diagram shows the overall airflow of the vehicle. Figure 9 The colors red, yellow, green, light blue, and dark blue represent decreasing wind resistance in that order. Simulation experiments show that the wind resistance at the top of the carriage roof is mostly dark blue, which is relatively low, thus reducing energy consumption and improving noise levels.

[0070] In some embodiments, the front frame 6, left frame 2, rear frame 4, and right frame 5 are all welded to the top plate body 1, and adjacent pairs of the front frame 6, left frame 2, rear frame 4, and right frame 5 are welded together. Thus, all four frames are welded to the top plate body 1, and the four frames are also welded together, ensuring overall sealing and structural strength. During assembly, the four frames are threaded to the corresponding side panels of the carriage, facilitating the assembly and transportation of the carriage.

[0071] In some embodiments, the top beam 3 is welded to the top body 1; both ends of the top beam 3 are welded to the left frame 2 and the right frame 5, respectively. With this configuration, the top surface of the top beam 3 is welded to the bottom surface of the top body 1, and both ends are welded to the left frame 2 and the right frame 5, respectively, ensuring the connection strength between the top beam 3 and the top body 1, as well as the overall structural strength of the carriage roof.

[0072] Therefore, the embodiments of this application not only optimize the aerodynamic performance of the vehicle roof, but also take into account its load-bearing capacity, noise control, and aesthetics, resulting in a more balanced overall performance and providing users with a more efficient, comfortable, and practical user experience. Through strength calculations and durability tests, the vehicle roof provided by the embodiments of this application can ensure structural strength and service life under various working conditions (such as high-speed driving, severe weather, etc.).

[0073] In some embodiments, the roof body 1, roof crossbeam 3, front frame 6, left frame 2, rear frame 4, and right frame 5 are all made of lightweight, high-strength steel. This achieves a lightweight design for the vehicle roof, significantly reducing its weight, lowering the overall vehicle weight, and improving fuel efficiency. For example, the roof body 1, roof crossbeam 3, front frame 6, left frame 2, rear frame 4, and right frame 5 are all made of lightweight, high-strength BST700X steel plate. BST700X steel plate is a high-strength, low-alloy steel plate with excellent performance, being lightweight, high-strength, and corrosion-resistant, thus achieving both lightweight and high strength.

[0074] In the above embodiments, the roof panel consists of six parts: roof beam 3, roof body 1, left frame 2, right frame 5, front frame 6, and rear frame 4. Through the air guiding structure at the top of the roof body 1 and the reasonable design and optimization of the materials of each component, the goals of lightweighting, aerodynamic performance optimization, strength improvement, and sealing assurance are achieved, providing an efficient and practical solution for vehicles such as light truck vans.

[0075] like Figure 1 , Figure 2 As shown in the figure, this application embodiment also provides a carriage, including a carriage side panel and a carriage roof panel disposed on the top of the carriage side panel. The carriage roof panel is the carriage roof panel provided in any of the above embodiments, which can reduce wind resistance, thereby reducing energy consumption and improving noise problems. Its advantages are brought about by the carriage roof panel. For details, please refer to the relevant parts in the above embodiments, which will not be repeated here.

[0076] The roof panel of the carriage can be threaded onto the top of the side panel of the carriage for easy assembly and transportation.

[0077] The side panels of the carriage include the front side panel, rear side panel, left side panel, and right side panel. After the components of the carriage roof are welded together, they are bolted to the front side panel, rear side panel, left side panel, and right side panel to ensure the airtightness of the carriage roof and side panels, preventing rainwater, dust, etc. from entering the carriage.

[0078] like Figure 9 As shown in the illustration, this application also provides a vehicle including the aforementioned cargo box, which can reduce wind resistance, thereby reducing energy consumption and improving noise levels. For example, the vehicle can be a light truck van or a train.

[0079] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details of the above application are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0080] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Unless otherwise defined, the technical or scientific terms used in the claims and description should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar words used in the patent application description and claims of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected," "coupled," or "linked" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections. Words such as “including,” “contains,” and “has” are open-ended words that mean “including but not limited to” and can be used interchangeably with them.

[0081] In this application, the terms "or" and "and / or" describe the relationship between related objects and indicate a non-exclusive inclusion. For example, "A and / or B" and "A or B" can include: only "A" exists, only "B" exists, and both "A" and "B" exist simultaneously, where "A" and "B" can be singular or plural. As another example, "A, B, and / or C" and "A, B, or C" can include: only "A" exists, only "B" exists, only "C" exists, both "A" and "B" exist simultaneously, both "A" and "C" exist simultaneously, both "B" and "C" exist simultaneously, and both "A", "B", and "C" exist simultaneously, where "A", "B", and "C" can be singular or plural. Furthermore, the symbol " / " in this application indicates an "or" relationship between the related objects before and after the symbol. In this application, the term "at least one A or B" has the same meaning as the aforementioned "A or B". The term "at least one A, B or C" has the same meaning as "A, B or C" above.

[0082] In the apparatus and equipment of this application, the components can be disassembled and / or reassembled. These disassemblies and / or reassemblies should be considered as equivalent solutions of this application.

[0083] The above description of the claimed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be applied within the widest scope consistent with the principles and novel features of this application.

[0084] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms described herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A carriage roof panel, characterized in that, Includes a roof panel body; multiple air guide protrusions are arranged sequentially along the longitudinal direction of the vehicle on the top surface of the roof panel body, and the air guide protrusions extend laterally along the vehicle; the air guide protrusions include: The windward surface is located on the side of the air guide protrusion facing the front of the vehicle, and the windward surface slopes upward from the front end to the rear end, starting from the position of the top plate body; The leeward side is located on the side of the air guide protrusion facing away from the front of the vehicle, and the rear end of the leeward side is connected to the top plate body; A transition surface that smoothly connects the rear end of the windward side and the front end of the leeward side; The front end of the windward side is the end closest to the front of the vehicle, and the rear end of the windward side is the end furthest from the front of the vehicle; the front end of the leeward side is the end closest to the front of the vehicle, and the rear end of the leeward side is the end furthest from the front of the vehicle.

2. The carriage roof panel according to claim 1, characterized in that, The leeward side slopes upward from the rear end to the front end, starting from the position of the top plate body.

3. The carriage roof panel according to claim 2, characterized in that, The acute angle formed by the windward side and the horizontal plane containing the top surface of the top plate body is smaller than the acute angle formed by the leeward side and the horizontal plane containing the top surface of the top plate body.

4. The carriage roof panel according to claim 1, characterized in that, Both ends of the air guide protrusion are connected to the top plate body through streamlined air guide sections; the streamlined air guide section includes: The curved bottom edge connects the front end of the windward side to the rear end of the leeward side, and the curved bottom edge is connected to the top plate body; The air guide longitudinal edge extends longitudinally along the vehicle and smoothly connects to the end of the air guide protrusion. The air guide longitudinal edge includes a windward section, a transition section, and a leeward section. The windward section extends backward and slopes upward from the position where the arc-shaped bottom edge connects to the front end of the windward surface. The leeward section extends forward and slopes upward from the position where the arc-shaped bottom edge connects to the rear end of the leeward surface. The transition section smoothly connects the top of the windward section and the top of the leeward section and is lower than the transition surface. The streamlined air guide surface smoothly connects the arc-shaped bottom edge and the longitudinal edge of the air guide surface, and the streamlined air guide surface protrudes upward from the end away from the air guide protrusion to the end closer to the air guide protrusion.

5. The carriage roof panel according to claim 4, characterized in that, The arc-shaped bottom edge is semi-circular, and the streamlined air guide surface is a downward curved surface along the vehicle's transverse direction.

6. The carriage roof panel according to any one of claims 1-5, characterized in that, It also includes a roof beam, which is arranged laterally along the bottom of the roof body.

7. The carriage roof panel according to claim 6, characterized in that, Also includes: Front frame, connected to the front side of the top plate body; The rear frame is connected to the rear side of the top plate body; The left frame is connected to the left side of the top plate body; The right frame is connected to the right side of the top plate body, and the two ends of the top plate beam are respectively connected to the left frame and the right frame; Wherein, the front frame, the left frame, the rear frame, and the right frame are all sealed together; The outer surfaces of the front frame, the left frame, and the right frame are all smooth transition surfaces that connect the top surface of the top plate body to the outer side surface of the carriage side plate. The rear frame includes a wind-guiding plane that is flush with the top surface of the top plate body.

8. The carriage roof panel according to claim 7, characterized in that, The top plate crossbeam, the front frame, the left frame, the rear frame, and the right frame are all welded to the top plate body, and adjacent frames of the front frame, the left frame, the rear frame, and the right frame are welded together. The two ends of the top plate crossbeam are welded together to the left frame and the right frame, respectively. And / or, the top plate body, the top plate crossbeam, the front frame, the left frame, the rear frame and the right frame are all lightweight high-strength steel components.

9. A carriage, comprising carriage side panels and a carriage roof panel disposed on top of the carriage side panels, characterized in that, The roof panel of the carriage is the roof panel as described in any one of claims 1-8.

10. A vehicle, characterized in that, Including the carriage as described in claim 9.

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