Cargo box, rain shielding structure and truck

Abstract

The utility model relates to the technical field of vehicles, in particular to a container, a rain shielding structure and a truck. The cargo box comprises a cargo box body, the cargo box body comprises a cargo box frame and a surrounding plate, the cargo box frame comprises a front stand column and a rear stand column which are arranged in the X direction, the surrounding plate is arranged on the cargo box frame in a surrounding mode and defines a storage space, and the surrounding plate comprises a top panel and a bottom panel which are arranged on the two sides of the cargo box frame in the Z direction; the top panel comprises a horizontal extending section and an inclined section which are connected in sequence in the X direction and in the direction from the front stand column to the rear stand column, one side of the inclined section is connected with the horizontal extending section, and the other end of the inclined section inclines towards the side where the bottom panel is located; the rain shielding structure is connected to the inclined section and comprises a rain shielding part, and the height of the end, away from the inclined section, of the rain shielding part is smaller than or equal to the height of the end, close to the inclined section, of the rain shielding part in the Z direction and in the direction from the bottom panel to the top panel. Therefore, turbulent flow formation can be reduced, and the energy utilization rate of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a cargo box, a rain shelter structure, and a truck. Background Technology

[0002] The cargo box is the core cargo-carrying unit of a freight vehicle. As the physical carrier for the storage and transportation of goods, the cargo box is usually constructed from a metal frame and composite panels to create an enclosed loading space, playing an irreplaceable role in ensuring cargo safety and improving transportation efficiency.

[0003] Traditional cargo boxes typically employ a standard rectangular box design with a rain shield at the rear. However, as the freight industry increasingly demands higher energy efficiency and longer driving range, this cargo box structure suffers from a high drag coefficient, increasing vehicle rolling resistance and resulting in lower energy utilization. Utility Model Content

[0004] This application provides a cargo box, a rain shelter structure, and a truck to solve the problem that the current cargo box has a large drag coefficient, which increases the vehicle's driving resistance and thus leads to low vehicle energy utilization.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] In a first aspect, this application provides a cargo box, comprising: a cargo box body, the cargo box body including a cargo box frame and side panels, the cargo box frame including a front column and a rear column arranged along the X direction, the side panels surrounding the cargo box frame and defining a storage space, the side panels including a top panel and a bottom panel arranged along the Z direction on both sides of the cargo box frame and side panels arranged along the Y direction on both sides of the cargo box frame, the top panel including a horizontal extension section and an inclined section connected in sequence, one side of the inclined section being connected to the horizontal extension section, and the other end being inclined towards the side where the bottom panel is located; a rainproof structure connected to the inclined section, the rainproof structure including a rainproof element, the height of the end of the rainproof element away from the inclined section being less than or equal to the height of the end of the rainproof element close to the inclined section.

[0007] In one possible implementation, the cargo box provided in this application includes a rainproof component comprising a connecting section, a recessed section, and a bent section connected in sequence. The connecting section is connected to the inclined section. The recessed section is recessed along the Z-direction and from the top panel to the bottom panel. The bent section has a first end and a second end opposite to each other. The first end is connected to the recessed section, and the second end is inclined towards the side where the top panel is located and away from the connecting section. Along the Z-direction and from the bottom panel to the top panel, the height of the second end is less than or equal to the height of the highest point of the connecting section.

[0008] In one possible implementation, the cargo box provided in this application has a connecting section with a third end and a fourth end, the third end being disposed away from the recessed section relative to the fourth end, the fourth end being connected to the recessed section, and the fourth end being disposed inclined toward the side where the bottom panel is located relative to the third end.

[0009] In one possible implementation, the cargo box provided in this application has its second, third, and fourth ends arranged in a collinear configuration.

[0010] In one possible implementation, the cargo box provided by this application has the following properties: the angle α between the tilting direction of the connecting section and the X direction satisfies: 2°<a≤30°; and / or, the angle e between the tilting direction of the tilting section and the X direction satisfies: 2°<e≤30°; and / or, the angle b between the tilting direction of the bending section and the X direction satisfies: 5°≤b≤15°; and / or, along the X direction, the length dimension of the top panel is d, the length dimension of the tilting section is c, and 5%≤c / d≤25%.

[0011] In one possible implementation, the cargo box provided in this application has a connecting segment whose tilt angle matches that of the tilt segment, and the connecting segment is at least partially stacked and connected to the tilt segment.

[0012] In one possible implementation, the cargo box provided by this application has a bending section with an extension length of L1 in the direction from the first end to the second end, and the value of L1 satisfies: L1≥15mm; and / or, in the X direction, the maximum vertical distance between the end of the recessed section and the connecting section connected to the second end is L2, and the value of L2 satisfies: 30mm≤L2≤50mm.

[0013] In one possible implementation, the cargo box provided in this application has an arc transition connection between the connecting section and the recessed section; and / or, an arc transition connection between the recessed section and the bent section.

[0014] In one possible implementation, the cargo box provided in this application further includes a support member in its rainproof structure, the support member being connected to the rainproof member and to the cargo box body.

[0015] In one possible implementation, the cargo box provided in this application has multiple support members, which are spaced apart and connected to the rainproof member along the Y direction.

[0016] In one possible implementation, the cargo box provided in this application has a support member comprising a plate-shaped member, which includes a first connecting edge, a support edge, and a second connecting edge connected in sequence. The extension trajectory of the first connecting edge matches and is connected to the cargo box body, and the extension trajectory of the support edge matches and is supported by the recessed section.

[0017] In one possible implementation, the cargo box provided in this application has its orthographic projection of the rainproof structure located between the orthographic projections of the paired side panels along the X direction.

[0018] In one possible implementation, the cargo box provided in this application further includes curved panels, with the top panel and each side panel connected by the curved panels. Along the X direction, the orthographic projection of the rainproof structure is located between the orthographic projections of the paired curved panels.

[0019] In one possible implementation, the cargo box provided in this application has a door opening for installing the tailgate on the side of the cargo box body facing the rainproof structure along the X direction, and the height dimension of the door opening is greater than or equal to 1.8m along the Z direction.

[0020] Secondly, this application provides a rainproof structure for a cargo box body, comprising: a rainproof component, the rainproof component comprising a connecting section, a recessed section and a bent section connected in sequence, the connecting section being used to connect with the cargo box body, the recessed section being recessed along a first direction, the bent section having a first end and a second end opposite to each other, the first end being connected to the recessed section, the second end being inclined in a direction away from the bent section, along the first direction and on the side opposite to the recessed direction of the recessed section, the height of the second end being less than or equal to the height of the highest point of the connecting section.

[0021] In one possible implementation, the rainproof structure provided in this application has a connecting segment with a third end and a fourth end, the third end being disposed away from the recessed segment relative to the fourth end, the fourth end being connected to the recessed segment, and the height of the fourth end being less than the height of the third end along a first direction.

[0022] In one possible implementation, the rain shelter structure provided in this application further includes a support member connected to the rain shelter and used for connection with the cargo box body.

[0023] Thirdly, this application provides a truck, including the cargo box or the rain shelter structure provided above.

[0024] The present application provides a cargo box, a rain shelter structure, and a truck. The cargo box includes a cargo box body and a rain shelter structure. The cargo box body includes a cargo box frame and side panels, which surround the cargo box frame and define a storage space. The side panels include a top panel and a bottom panel disposed on both sides of the cargo box frame along the Z direction, and side panels disposed on both sides of the cargo box frame along the Y direction. Along the X direction, from the front pillar to the rear pillar, the top panel includes a horizontally extending section and an inclined section connected in sequence. One side of the inclined section is connected to the horizontally extending section, and the other end is inclined towards the side where the bottom panel is located to guide the airflow to the rear of the cargo box and improve the vortex phenomenon at the rear of the cargo box. The rain shelter structure is connected to the inclined section and includes a rain shelter element. Along the Z direction, from the bottom panel to the top panel, the height of the end of the rain shelter element away from the inclined section is less than or equal to the height of the end of the rain shelter element near the inclined section. This promotes a smooth airflow transition, reduces turbulence formation, reduces air resistance, thereby reducing energy consumption during vehicle operation and improving the vehicle's energy utilization rate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This application provides structural schematic diagrams of cargo boxes for some embodiments;

[0027] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0028] Figure 3 for Figure 2 Schematic diagram of the central rainproof structure;

[0029] Figure 4 for Figure 3 Another perspective illustration;

[0030] Figure 5 This is a speed cloud simulation diagram of a vehicle in operation using existing technology;

[0031] Figure 6 A speed cloud simulation diagram of the vehicle containing the cargo box during operation, provided in one embodiment of this application;

[0032] Figure 7 for Figure 1 Another perspective illustration;

[0033] Figure 8 for Figure 7A magnified view of a section at point B in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10-Cargo box;

[0036] 100 - Cargo box body; 110 - Cargo box frame; 111 - Front upright; 112 - Rear upright; 120 - Side panel; 121 - Top panel; 1211 - Horizontal extension section; 1212 - Inclined section; 122 - Side panel; 123 - Curved panel;

[0037] 200 - Rainproof structure;

[0038] 210 - Rainproof component; 211 - Connecting section; 211a - Third end; 211b - Fourth end; 212 - Recessed section; 213 - Bending section; 213a - First end; 213b - Second end;

[0039] 220 - Support component; 221 - First connecting edge; 222 - Support edge; 223 - Second connecting edge.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the preferred embodiments of this application will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0043] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Traditional cargo boxes typically employ a standard rectangular structure design with a rain shield at the rear top. This rain shield is usually L-shaped and angled upwards to achieve the desired rain protection. However, as the freight industry's requirements for energy efficiency and range continue to increase, the design of the aforementioned cargo box structure has gradually revealed its drawbacks. When the vehicle is traveling at high speed, a large turbulence zone easily forms at the rear of the cargo box, especially at the rain shield, generating significant air turbulence. This increases the vehicle's drag, resulting in lower energy utilization.

[0046] In view of this, this application provides a cargo box, a rainproof structure, and a truck. The cargo box can solve the problem that the current cargo box has a large drag coefficient, which increases the vehicle's driving resistance and thus leads to low vehicle energy utilization.

[0047] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0048] See Figure 1 and Figure 2This application provides a cargo box 10, including a cargo box body 100 and a rainproof structure 200. The cargo box body 100 includes a cargo box frame 110 and side panels 120. The cargo box frame 110 includes a front upright 111 and a rear upright 112 arranged along the X direction. The side panels 120 surround the cargo box frame 110 and define a storage space. The side panels 120 include a top panel 121 and a bottom panel arranged along the Z direction on both sides of the cargo box frame 110, and side panels 122 arranged along the Y direction on both sides of the cargo box frame 110. Along the X direction and in the direction from the front upright 111 to the rear upright 112, the top panel 121 includes a horizontally extending section 1211 and an inclined section 1212 connected in sequence. One side of the inclined section 1212 is connected to the horizontally extending section 1211, and the other end is inclined towards the side where the bottom panel is located. The rainproof structure 200 is connected to the inclined section 1212. The rainproof structure 200 includes a rainproof element 210, which is located in the Z direction and points from the bottom panel to the top panel 121. The height of the end of the rainproof element 210 away from the inclined section 1212 is less than or equal to the height of the end of the rainproof element 210 close to the inclined section 1212.

[0049] It can be understood that the X direction can be interpreted as the front-to-back direction of the cargo box 10, the front-to-back direction of the vehicle's movement, or the length direction of the cargo box 10. The Y direction can be interpreted as the left-to-right direction of the cargo box 10, the left-to-right direction of the vehicle, or the width direction of the cargo box 10. The Z direction can be interpreted as the up-and-down direction of the cargo box 10, the up-and-down direction of the vehicle, or the height direction of the cargo box 10.

[0050] The cargo box frame 110, serving as a supporting structure, can be formed by connecting multiple uprights, crossbeams, and longitudinal beams. The cargo box frame 110 can be made of alloy materials to effectively resist impacts caused by bumps and sudden braking during vehicle operation.

[0051] The side panels 120 are installed around the cargo box frame 110 and together with the cargo box frame 110 define a storage space for accommodating goods. Specifically, the top panel 121 and the bottom panel are respectively located on the upper and lower sides of the cargo box frame 110 along the Z-direction. The top panel 121 provides top protection for the storage space, effectively preventing external debris from falling into the storage space and damaging the goods, while the bottom panel is used to support the goods. Pairs of side panels 122 are located on the left and right sides of the cargo box frame 110 along the Y-direction, forming lateral barriers to the storage space and preventing goods from falling from the sides during transportation.

[0052] It is understood that the cargo box frame 110 may include a front column 111 and a rear column 112. The column located in front of the cargo box frame 110 along the X direction is the front column 111, and the column located behind the cargo box frame 110 along the X direction is the rear column 112.

[0053] The horizontal extension section 1211 extends straight along the X direction of the cargo box 10, providing a flat bearing surface for the top of the cargo box 10. One side of the inclined section 1212 connects to the end of the horizontal extension section 1211, and the connection point can adopt a smooth transition design to avoid sharp angles, thereby reducing airflow disturbance when passing through this area. The other end of the inclined section 1212 extends inclinedly towards the side where the bottom panel is located, that is, inclined downwards towards the cargo box 10. This inclined setting creates a downward slope at the edge of the top panel 121. By designing the top panel 121 as a combination of the horizontal extension section 1211 and the inclined section 1212, the aerodynamic characteristics of the cargo box 10 are optimized. It can guide the airflow to the rear of the cargo box 10, improve turbulence at the rear of the cargo box 10, and the inclined section 1212 can effectively reduce the tail vortex region.

[0054] The rainproof structure 200 is connected to the surface of the inclined section 1212. The connection method between the two can be selected according to actual needs, such as welding, riveting or bolting, to ensure that the rainproof component 210 and the top panel 121 form a solid overall structure.

[0055] It should be noted that the rainproof structure 200 is connected to the inclined section 1212. For example, the rainproof structure 200 can be connected to the rear of the rainproof structure 200 in the X direction, thereby effectively blocking rainwater from the rear of the cargo box 10. Optionally, along the X direction, the orthographic projection of the rainproof structure 200 can be located between the orthographic projections of the paired side panels 122. That is, the extension length of the rainproof structure 200 in the Y direction is less than the spacing between the paired side panels 122 in the Y direction, so that the rainproof structure 200 does not protrude beyond the side panels 122 in the Y direction. This arrangement allows airflow to flow smoothly along the outer side of the side panels 122 when the vehicle is in motion, avoiding additional collisions and interference with the airflow caused by the outward protrusion of the rainproof structure 200 in the Y direction, thereby reducing airflow turbulence.

[0056] It should also be noted that, along the Z-direction and from the bottom panel to the top panel 121, the height of the end of the rain shield 210 away from the inclined section 1212 is less than or equal to the height of the end of the rain shield 210 close to the inclined section 1212. This setting can reduce the probability that the end of the rain shield 210 away from the inclined section 1212 will obstruct the airflow due to being too high, ensuring that the airflow can transition smoothly, reducing the formation of turbulence zone at the rear of the cargo box 10, thereby reducing air resistance when the vehicle is driving, which helps to reduce the vehicle's energy consumption and improve energy utilization.

[0057] In other words, if the height of the end of the rain shield 210 furthest from the inclined section 1212 is set to be greater than the height of the end of the rain shield 210 closest to the inclined section 1212, it will create a hard obstruction to the airflow. When the high-speed airflow passes through the end of the rain shield 210 furthest from the inclined section 1212, it will rise sharply, causing boundary layer separation between the airflow and the surface of the rain shield 210, thereby generating a large amount of swirling turbulence. However, when the height of the end of the rain shield 210 furthest from the inclined section 1212 is controlled to be less than or equal to the height of the end of the rain shield 210 closest to the inclined section 1212, the airflow can transition naturally along the top of the rain shield 210, greatly reducing the airflow disturbance at the rear of the cargo box 10 and effectively reducing the generation of turbulence.

[0058] Among them, see Figure 3 and Figure 4 In some embodiments, the rain shield 210 includes a connecting section 211, a recessed section 212, and a bent section 213 connected in sequence. The connecting section 211 is connected to the inclined section 1212. The recessed section 212 is recessed along the Z direction and from the top panel 121 to the bottom panel. The bent section 213 has a first end 213a and a second end 213b. The first end 213a is connected to the recessed section 212. The second end 213b is inclined towards the side where the top panel 121 is located and in a direction away from the connecting section 211. Along the Z direction and from the bottom panel to the top panel 121, the height of the second end 213b is less than or equal to the height of the highest point of the connecting section 211.

[0059] Optionally, the connecting segment 211 can be securely connected to the inclined segment 1212 by welding, riveting, bolting, or other means. For example, the connecting segment 211 can be welded to the inclined segment 1212, thereby forming a dense weld at the weld between the connecting segment 211 and the top panel 121, ensuring the sealing and firmness of the connection, and thus preventing rainwater from seeping in.

[0060] In practice, the recessed section 212 can be recessed along the Z direction and from the top panel 121 to the bottom panel to form a concave groove structure. This effectively catches falling rainwater, allowing it to collect within the recessed section 212 and flow out along both ends of the recessed section 212 in the Y direction, thus preventing rainwater from dripping directly onto the tailgate at the rear of the cargo box 10.

[0061] The first end 213a of the bent section 213 is connected to the side of the recessed section 212 away from the connecting section 211, and the second end 213b is inclined toward the side where the top panel 121 is located and away from the connecting section 211. This arrangement can effectively prevent rainwater from flowing down through the bent section 213 and avoid rainwater from seeping into the storage space along the rear of the cargo box 10.

[0062] Optionally, the connecting section 211, the recessed section 212, and the bent section 213 can be integrally formed parts. For example, the connecting section 211, the recessed section 212, and the bent section 213 can be integrally bent from a steel coil.

[0063] It should also be noted that, along the Z direction and from the bottom panel to the top panel 121, the height of the second end 213b is less than or equal to the height of the highest point of the connecting section 211. This setting can reduce the probability that the bending section 213 will obstruct the airflow due to being too high, ensuring that the airflow can transition smoothly, reducing the formation of turbulence zone at the rear of the cargo box 10, thereby reducing the air resistance when the vehicle is driving, which helps to reduce the energy consumption of the vehicle and improve the energy utilization rate.

[0064] In other words, if the height of the second end 213b of the bend section 213 is set to be greater than the height of the highest point of the connecting section 211, it will create a hard obstruction to the airflow. When the high-speed airflow passes through the bend section 213, it will rise sharply, causing boundary layer separation between the airflow and the surface of the bend section 213, thereby generating a large amount of swirling turbulence. However, when the height of the second end 213b is controlled to be less than or equal to the height of the highest point of the connecting section 211, the airflow can transition naturally along the top of the bend section 213, which greatly reduces the airflow disturbance at the rear of the cargo box 10 and effectively reduces the generation of turbulence.

[0065] And see also Figure 5 and Figure 6 As shown in the velocity cloud simulation diagram, by setting the height of the second end 213b to be less than or equal to the height of the highest point of the connecting section 211, the aerodynamic characteristics of the cargo box 10 are optimized, which can improve the turbulence phenomenon at the tail of the cargo box 10. This setting of the second end 213b can effectively reduce the turbulence area at the tail. Figure 6 In the turbulent region, M2 is smaller than Figure 5 The turbulent zone M1 in the vehicle effectively reduces the wind resistance of the vehicle when the cargo box 10 is in operation, thus effectively improving the problem of low vehicle energy utilization.

[0066] See Figure 3 In some embodiments, the connecting segment 211 has a third end 211a and a fourth end 211b opposite to each other. The third end 211a is disposed away from the recessed segment 212 relative to the fourth end 211b, and the fourth end 211b is connected to the recessed segment 212. The fourth end 211b is disposed inclined toward the side where the bottom panel is located relative to the third end 211a.

[0067] The fourth end 211b is connected to the recessed section 212, forming a transition section between the connecting section 211 and the recessed section 212. Compared with the third end 211a, the fourth end 211b is inclined towards the side where the bottom panel is located. Thus, the connecting section 211 forms a certain tilt angle relative to the X direction.

[0068] In other words, the connecting section 211 has a shape that gradually slopes downwards from the third end 211a to the fourth end 211b, which serves to guide both airflow and rainwater. Regarding airflow, when airflow flows from the top panel 121 to the rain shield 210, the inclined structure of the connecting section 211 guides the airflow to smoothly transition to the recessed section 212, avoiding airflow separation due to abrupt structural changes and reducing the generation of local turbulence. Regarding rainwater drainage, the inclined fourth end 211b works in conjunction with the recessed structure of the recessed section 212, allowing rainwater on the top panel 121 to flow along the inclined surface of the connecting section 211 to the recessed section 212, preventing rainwater accumulation at the connection between the connecting section 211 and the top panel 121, improving the drainage efficiency of the rain shield structure 200, and further optimizing the airflow continuity between the rain shield 210 and the cargo box body 100, helping to reduce the overall air resistance of the cargo box 10.

[0069] See Figure 3 In some embodiments, the angle α between the tilt direction of the connecting segment 211 and the X direction satisfies: 2°<a≤30°.

[0070] In other words, the included angle α can be any value between 2° and 30°, including the 30° value. For example, the included angle α can be selected as 3°, 5°, 5.5°, 12°, 13.4°, 16°, etc. For example, it can be selected as 10°.

[0071] If the included angle is too small, for example, the included angle α is less than 2°, the inclination of the connecting section 211 is too gentle, which will make it difficult for rainwater on the top panel 121 to flow smoothly along the connecting section 211 to the recessed section 212, and water will easily accumulate on the surface of the connecting section 211. At the same time, when the airflow passes through this place, it may be locally stagnant due to the too gentle transition, resulting in increased air resistance.

[0072] If the included angle α is greater than 30°, the inclination of the connecting section 211 is too large, causing the airflow to change direction significantly when passing through the connecting section 211. This can easily lead to airflow separation and turbulence behind the connecting section 211, which is not conducive to a smooth transition of airflow. Therefore, setting the included angle α within the above-mentioned range ensures that rainwater flows to the recessed section 212 with the help of the slope of the connecting section 211, avoiding water accumulation. It also guides the airflow to smoothly transition along the surface of the connecting section 211 to the recessed section 212, reducing airflow disturbance. This further optimizes the overall aerodynamic performance of the cargo box 10 and helps reduce energy consumption during vehicle operation.

[0073] In some alternative embodiments, the included angle α can be set to satisfy 4° ≤ α ≤ 20°. For example, 4°, 5.5°, 12°, 14.6°, 17°, etc.

[0074] See Figure 3In some embodiments, the second end 213b, the third end 211a, and the fourth end 211b are arranged in a collinear manner.

[0075] In other words, the area formed by the geometric lines connecting the second end 213b of the bent section 213, the third end 211a, and the fourth end 211b of the connecting section 211 in the front-back direction of the cargo box 10 can form a continuous inclined plane. Alternatively, it can be understood that the lines connecting the second end 213b, the third end 211a, and the fourth end 211b in the left-right direction of the cargo box 10 are continuous straight lines.

[0076] This configuration further optimizes the airflow guidance path. Since the second end 213b, the third end 211a, and the fourth end 211b are collinear, the airflow can smoothly transition from the top panel 121 through the connecting section 211, the recessed section 212 to the bending section 213. This linear transition shape helps to reduce the structural resistance of the rain shield 210 itself, thereby improving the aerodynamic performance and rain shielding effect of the cargo box 10.

[0077] See Figure 3 In some embodiments, the angle b between the inclination direction of the bent segment 213 and the X direction satisfies: 5°≤b≤15°.

[0078] If the included angle b is too small, for example, set to less than 5°, the inclination of the bend section 213 is relatively gentle. Although this can reduce obstruction to the airflow, it can also cause rainwater to slide down along the bend section 213, thereby increasing the probability of rainwater seeping into the storage space. If the included angle b is too large, for example, set to greater than 15°, the inclination of the bend section 213 is too steep. This can cause the airflow to change direction sharply when passing through this point, triggering boundary layer separation and forming turbulence.

[0079] Therefore, the included angle b can be set to any value between 5° and 15°, such as 5°, 7°, 12°, 14°, etc. With this setting, on the one hand, the airflow can smoothly transition along the inclined surface of the bend section 213, avoiding airflow disturbance caused by abrupt angle changes and reducing vortex formation; on the other hand, it can block rainwater to a certain extent and guide rainwater to slide down through the two ends of the recessed section 212 in the Y direction, effectively preventing rainwater from sliding down along the bend section 213, thereby ensuring the rainproof effect of the rainproof component 210.

[0080] See Figure 3 In some embodiments, the extension length of the bent segment 213 is L1 in the direction from the first end 213a to the second end 213b, and the value range of L1 satisfies: L1≥15mm.

[0081] It should be noted that the rain shield 210 can be formed by integrally bending a steel coil. Therefore, based on the bending process, L1 can be set to be greater than or equal to 15mm, thereby reducing processing difficulty and improving processing efficiency. Furthermore, this design ensures that the bent section 213 has sufficient length to guarantee ample rain-blocking area, effectively catching and guiding rainwater flow to the recessed section 212, reducing the risk of rainwater leakage. In addition, it also helps guide airflow smoothly at the rear of the cargo box 10.

[0082] See Figure 3 In some alternative embodiments, in the X direction, the maximum vertical distance between the end of the recessed segment 212 connected to the connecting segment 211 and the second end 213b is L2, and the value of L2 is satisfied that: 30mm≤L2≤50mm.

[0083] Optionally, L2 can be 30mm, 32mm, 40mm, 43mm, 46mm, etc.

[0084] This design ensures that the rainproof component 210 has sufficient rain-blocking area to guarantee its rain-blocking effect, and that the recessed section 212 has enough space to accommodate and guide rainwater to drain smoothly at both ends in the Y direction. It also allows for a reasonable transition distance for airflow as it flows from the recessed section 212 to the bend section 213, ensuring smooth airflow along the surface of the rainproof component 210. This effectively enhances the synergistic effect of the rainproof structure 200 in terms of drainage and aerodynamic performance, helping to reduce vehicle drag.

[0085] See Figure 3 and Figure 4 In some embodiments, the rain shelter structure 200 further includes a support member 220, which is connected to the rain shelter member 210 and to the cargo box body 100.

[0086] One end of the support member 220 can be connected to the side of the rain shield 210 away from the airflow. Specifically, it can be fixed to the back of the recessed section 212 or the bent section 213, while the other end extends to the corresponding position of the cargo box body 100, such as the cargo box 10 frame. It can be rigidly fixed by welding, bolting or other means. For example, the support member 220 can be connected to the rain shield 210 and the cargo box body 100 by welding.

[0087] By providing the support member 220, the support member 220 can transfer the load-bearing force of the rainproof component 210 to the cargo box body 100, preventing the area of ​​the rainproof component 210 not connected to the top panel 121 from deforming or detaching due to excessive force. In rainy or snowy weather, the support member 220 can enhance the load-bearing capacity of the rainproof component 210 against the weight of accumulated water, preventing the recessed section 212 from sagging and deforming due to excessive water accumulation.

[0088] See Figure 4In some embodiments, multiple support members 220 are provided, and multiple support members 220 are connected to the rainproof member 210 at intervals along the Y direction.

[0089] Optionally, the support members 220 can be configured as two, three, four, or more. For example, two support members 220 can be configured, and along the Y direction, the two support members 220 can be located at opposite ends of the rainproof member 210. Thus, by setting multiple support members 220, the force can be evenly distributed, making the overall force on the rainproof member 210 more balanced and reducing the possibility of local deformation.

[0090] See Figure 4 In some embodiments, the support member 220 includes a plate-shaped member, which includes a first connecting edge 221, a support edge 222, and a second connecting edge 223 connected in sequence. The extension trajectory of the first connecting edge 221 matches and is connected to the cargo box body 100, and the extension trajectory of the support edge 222 matches and is supported by the recessed section 212.

[0091] The first connecting edge 221, the supporting edge 222, and the second connecting edge 223 of the plate-shaped component are connected in sequence to form a complete outline. The extension trajectory of the first connecting edge 221 matches the corresponding connecting part of the cargo box body 100, and the first connecting edge 221 is in contact with the cargo box body 100 in a surface-to-surface manner. Then, it is fixed by welding or bolts to achieve a tight connection with the cargo box body 100.

[0092] The support edge 222, as the main supporting part of the plate-like component, extends along a path that matches the outer surface contour of the recessed section 212. The support edge 222 can achieve surface contact with the curved or folded surface formed by the Z-direction recess of the recessed section 212. This allows the support edge 222 to evenly distribute the pressure on the recessed section 212, including the weight of accumulated rainwater, preventing deformation of the recessed section 212 due to localized stress concentration. The second connecting edge 223 can extend to other parts of the rainproof component 210 as needed, or form an angle with the support edge 222 to enhance the structural strength of the plate-like component. Furthermore, this arrangement is more aesthetically pleasing.

[0093] See Figure 3 In some embodiments, the connecting segment 211 and the recessed segment 212 are connected by an arc transition, and in other embodiments, the recessed segment 212 and the bent segment 213 are connected by an arc transition.

[0094] The connection between the connecting section 211 and the recessed section 212 is made by a circular arc transition, which guides the airflow smoothly from the connecting section 211 to the recessed section 212, avoiding airflow collision or separation caused by right angle or acute angle transition, thereby reducing the generation of local turbulence. For rainwater, the circular arc surface can guide the water flow along the curved surface to the recessed section 212, preventing the formation of water accumulation dead corners at the connection between the connecting section 211 and the recessed section 212.

[0095] The concave section 212 and the bend section 213 can also be connected by a circular arc transition. This allows the airflow to smoothly turn along the arc surface when entering the bend section 213 from the concave section 212, avoiding airflow disturbance caused by sudden angle changes and further reducing air resistance.

[0096] See Figure 1 In some embodiments, the enclosure 120 further includes an arcuate plate 123, the top panel 121 and each side enclosure 122 are connected by the arcuate plate 123, and the orthographic projection of the rain shelter structure 200 is located between the orthographic projections of the pairs of arcuate plates 123 along the X direction.

[0097] It should be noted that the arc-shaped plate 123 serves as a transition structure between the top panel 121 and the side panel 122. Its arc-shaped contour is adapted to the edge of the top panel 121 and the top edge of the side panel 122, and the connection is achieved through welding or integral molding. The arc-shaped transition design avoids the formation of right angles or acute angles between the top panel 121 and the side panel 122, making the corners of the top of the cargo box 10 present a smooth curved surface shape. This not only guides the airflow to flow smoothly along the arc-shaped surface, reducing airflow separation and turbulence caused by abrupt corners, but also disperses the stress of the cargo box 10, enhances the impact resistance of the connection between the top panel 121 and the side panel 122, and reduces the probability of rainwater accumulation at the connection between the top panel 121 and the side panel 122.

[0098] Along the X direction, the orthographic projection of the rainproof structure 200 is confined between the orthographic projections of the paired arcuate plates 123, meaning that the extension length of the rainproof structure 200 in the width direction (Y direction) of the cargo box 10 does not exceed the arcuate plates 123 on both sides. Thus, by preventing the rainproof structure 200 from protruding beyond the arcuate plates 123 along the Y direction, additional interference with the airflow along the arcuate plates 123 is avoided.

[0099] See Figure 7 In some embodiments, along the X direction, the length dimension of the top panel 121 is d, and the length dimension of the inclined segment 1212 is c, where 5% ≤ c / d ≤ 25%.

[0100] Optionally, the length dimension d of the top panel 121 can be understood as the vertical distance between the two ends of the top panel 121 in the X direction. The length dimension c of the inclined segment 1212 can be understood as the vertical distance in the X direction between the end of the inclined segment 1212 that abuts against the horizontal extension segment 1211 and the end of the inclined segment 1212 that is away from the horizontal extension segment 1211.

[0101] Optionally, the value of c / d can be any value between 5% and 25%, including both 5% and 25%. For example, it can be selected as 8%, 11%, 12%, 14%, 16%, or 20%.

[0102] The above settings can effectively improve the tangential turbulence at the rear of the cargo box 10, thereby reducing the turbulence at the rear of the cargo box 10, lowering the drag coefficient of the vehicle in which the cargo box 10 is located, and effectively improving the problem of low vehicle energy utilization.

[0103] See Figure 7 In some optional embodiments, the angle e between the tilt direction of the tilt segment 1212 and the X direction satisfies: 2° < e ≤ 30°. Exemplarily, it can be selected as 8°, 10°, 12°, 15°, 17°, or 20°.

[0104] Setting the included angle e within the aforementioned range ensures that rainwater flows to the rain shield 210 via the slope of the inclined section 1212 and is discharged from the rain shield 210, preventing water accumulation. It also guides the airflow to smoothly transition along the surface of the inclined section 1212 to the rain shield 210, reducing airflow disturbance and further optimizing the overall aerodynamic performance of the cargo box 10, thus helping to reduce energy consumption during vehicle operation.

[0105] Since the inclined section 1212 itself has a downward tilt angle, after the connecting section 211 is connected to the inclined section 1212, the tilt angle of the connecting section 211 can match the tilt angle of the inclined section 1212. That is, the tilt angle of the connecting section 211 can be the same as the tilt angle of the inclined section 1212, so that the overall structure of the rainproof member 210 is adapted to the contour of the top panel 121. Thus, by at least a part of the connecting section 211 being stacked and connected to the inclined section 1212, airflow can be guided to flow smoothly along the surfaces of the inclined section 1212 and the connecting section 211, reducing air resistance caused by structural abrupt changes. At the same time, rainwater can flow along the slope of the inclined section 1212 to the recessed section 212 of the rainproof member 210, improving the overall rainproof and drainage effect.

[0106] In some embodiments, along the X direction, a doorway for installing the tailgate is provided on the side of the cargo box body facing the rainproof structure, and along the Z direction, the height of the doorway is greater than or equal to 1.8m.

[0107] In some alternative embodiments, the vertical distance between the height of the highest point of the inclined segment 1212 and the height of the lowest point of the inclined segment 1212 along the Z direction is set to be greater than or equal to 80 mm and less than or equal to 110 mm.

[0108] See Figure 3 and Figure 4 Based on the above embodiments, this application provides a rainproof structure 200 for a cargo box body 100, including: a rainproof component 210, which includes a connecting section 211, a recessed section 212, and a bent section 213 connected in sequence. See [link to relevant documentation]. Figure 8 The connecting section 211 is used to connect with the cargo box body 100. The recessed section 212 is recessed along a first direction. The bending section 213 has a first end 213a and a second end 213b opposite to each other. The first end 213a is connected to the recessed section 212. The second end 213b is inclined in a direction away from the bending section 213. The second end 213b is located on the side opposite to the recessed direction of the recessed section 212 along the first direction. The height of the second end 213b is less than or equal to the height of the highest point of the connecting section 211.

[0109] The first direction can be understood as the direction of gravity, or the Z direction in the vehicle coordinate system. Optionally, the connecting segment 211, the recessed segment 212, and the bent segment 213 can be integrally formed parts. For example, the connecting segment 211, the recessed segment 212, and the bent segment 213 can be integrally formed by bending a steel coil.

[0110] It should be noted that, along the first direction and on the side opposite to the concave direction of the concave section 212, the height of the second end 213b is less than or equal to the height of the highest point of the connecting section 211. This setting can reduce the probability that the bending section 213 will obstruct the airflow due to being too high, ensuring that the airflow can transition smoothly, reducing the formation of turbulence zones, and thus reducing the air resistance of the rainproof structure 200 when the vehicle is in motion, which helps to reduce the vehicle's energy consumption and improve energy utilization.

[0111] In other words, if the height of the second end 213b of the bend section 213 is set to be greater than the height of the highest point of the connecting section 211, it will create a hard obstruction to the airflow. When the high-speed airflow passes through the bend section 213, it will rise sharply, causing boundary layer separation between the airflow and the surface of the bend section 213, thereby generating a large amount of swirling turbulence. However, when the height of the second end 213b is controlled to be less than or equal to the height of the highest point of the connecting section 211, the airflow can transition naturally along the top of the bend section 213, which greatly reduces the disturbance of the tail airflow and effectively reduces the generation of turbulence.

[0112] In some embodiments, the connecting segment 211 has a third end 211a and a fourth end 211b opposite to each other. The third end 211a is disposed away from the recessed segment 212 relative to the fourth end 211b. The fourth end 211b is connected to the recessed segment 212. Along the first direction, the height of the fourth end 211b is less than the height of the third end 211a.

[0113] In other words, the connecting section 211 has a shape that gradually slopes downward from the third end 211a to the fourth end 211b. Therefore, in terms of airflow, when the airflow flows towards the rainproof member 210, the inclined structure of the connecting section 211 can guide the airflow to smoothly transition to the recessed section 212, avoiding airflow separation due to structural abrupt changes and reducing the generation of local turbulence. In terms of rainwater drainage, the inclined fourth end 211b can cooperate with the recessed structure of the recessed section 212, allowing rainwater to flow along the inclined surface of the connecting section 211 to the recessed section 212, improving the drainage efficiency of the rainproof structure 200.

[0114] In some embodiments, the rain shelter structure 200 further includes a support member 220, which is connected to the rain shelter member 210 and is used to connect to the cargo box body 100.

[0115] One end of the support member 220 can be connected to the side of the rain shield 210 away from the airflow. Specifically, it can be fixed to the back of the recessed section 212 or the bent section 213, while the other end extends to the corresponding position of the cargo box body 100, such as the cargo box 10 frame. It can be rigidly fixed by welding, bolting or other means. For example, the support member 220 can be connected to the rain shield 210 and the cargo box body 100 by welding.

[0116] By setting the support member 220, the support member 220 can transfer the load-bearing force of the rain shield 210 to the cargo box body 100, so as to prevent the area of ​​the rain shield 210 not connected to the top panel 121 from deforming or detaching due to excessive force.

[0117] Based on the above embodiments, this application provides a truck, including the cargo box 10 provided in any of the above embodiments or the rain shelter structure 200 provided in any of the above embodiments.

[0118] The specific structures of the rainproof structure 200 and the cargo box 10 have been described in detail in the above embodiments and will not be repeated here.

[0119] It is understood that by employing the cargo box 10 or the rainproof structure 200 provided in any of the above embodiments, airflow can be guided to flow orderly along the outer surface of the cargo box 10, reducing tail turbulence. Compared to a conventional cargo box 10, the cargo box 10 of this application can reduce air resistance when the truck is driving, thereby reducing power loss of the engine or motor. For new energy trucks, adopting the cargo box 10 of this application can improve the driving range, thereby improving the truck's energy utilization rate.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cargo box, characterized in that, include: The cargo box body includes a cargo box frame and side panels. The cargo box frame includes a front column and a rear column arranged along the X direction. The side panels surround the cargo box frame and define a storage space. The side panels include a top panel and a bottom panel arranged along the Z direction on both sides of the cargo box frame, and a side panel arranged along the Y direction on both sides of the cargo box frame. Along the X direction and in the direction from the front column to the rear column, the top panel includes a horizontal extension section and an inclined section connected in sequence. One side of the inclined section is connected to the horizontal extension section, and the other end is inclined towards the side where the bottom panel is located. A rainproof structure is connected to the inclined section. The rainproof structure includes a rainproof element along the Z direction and from the bottom panel to the top panel. The height of the end of the rainproof element away from the inclined section is less than or equal to the height of the end of the rainproof element close to the inclined section.

2. The cargo box according to claim 1, characterized in that, The rainproof component includes a connecting section, a recessed section, and a bent section connected in sequence. The connecting section is connected to the inclined section. The recessed section is recessed along the Z-direction and from the top panel to the bottom panel. The bent section has a first end and a second end opposite to each other. The first end is connected to the recessed section. The second end is inclined towards the side where the top panel is located and away from the connecting section. Along the Z-direction and from the bottom panel to the top panel, the height of the second end is less than or equal to the height of the highest point of the connecting section.

3. The cargo box according to claim 2, characterized in that, The connecting segment has a third end and a fourth end opposite to each other. The third end is disposed away from the recessed segment relative to the fourth end. The fourth end is connected to the recessed segment and is disposed inclined toward the side where the bottom panel is located relative to the third end.

4. The cargo box according to claim 3, characterized in that, The second end, the third end, and the fourth end are arranged in a collinear manner.

5. The cargo box according to claim 3, characterized in that, The angle α between the inclination direction of the connecting segment and the X direction satisfies: 2°<a≤30°; And / or, the angle e between the tilt direction of the tilted segment and the X direction satisfies: 2°<e≤30°; And / or, the angle b between the inclination direction of the bent segment and the X direction satisfies: 5°≤b≤15°; And / or, along the X direction, the length dimension of the top panel is d, and the length dimension of the inclined segment is c, where 5% ≤ c / d ≤ 25%.

6. The cargo box according to claim 3, characterized in that, The tilt angle of the connecting segment matches the tilt angle of the tilt segment, and the connecting segment is at least partially stacked and connected to the tilt segment.

7. The cargo box according to claim 2, characterized in that, The extension length of the bent section from the first end to the second end is L1, and the value range of L1 satisfies: L1≥15mm; And / or, in the X direction, the maximum vertical distance between the end of the recessed segment connected to the connecting segment and the second end is L2, and the value range of L2 satisfies: 30mm≤L2≤50mm.

8. The cargo box according to claim 2, characterized in that, The connecting segment and the recessed segment are connected by a circular arc transition; And / or, the recessed section and the bent section are connected by a circular arc transition.

9. The cargo box according to claim 2, characterized in that, The rainproof structure also includes a support member, which is connected to the rainproof component and to the cargo box body.

10. The cargo box according to claim 9, characterized in that, The support members are configured as a plurality of them, and the plurality of support members are connected to the rainproof member at intervals along the Y direction.

11. The cargo box according to claim 9, characterized in that, The support member includes a plate-shaped member, which includes a first connecting edge, a supporting edge, and a second connecting edge connected in sequence. The extension trajectory of the first connecting edge matches the cargo box body and is connected to the cargo box body. The extension trajectory of the supporting edge matches the recessed section and is supported by the recessed section.

12. The cargo box according to any one of claims 1 to 11, characterized in that, Along the X direction, the orthographic projection of the rainproof structure lies between the orthographic projections of the paired side panels.

13. The cargo box according to claim 12, characterized in that, The enclosure also includes an arc-shaped plate, and the top panel and each of the side enclosures are connected by the arc-shaped plate. Along the X direction, the orthographic projection of the rainproof structure is located between the orthographic projections of the pairs of arc-shaped plates.

14. The cargo box according to any one of claims 1 to 11, characterized in that, Along the X direction, the side of the cargo box body facing the rainproof structure is provided with a door opening for installing the tailgate, and along the Z direction, the height of the door opening is greater than or equal to 1.8m.

15. A rainproof structure for a cargo box body, characterized in that, include: A rainproof component, comprising a connecting section, a recessed section, and a bent section connected in sequence, wherein the connecting section is used to connect to the cargo box body, the recessed section is recessed along a first direction, and the bent section has a first end and a second end opposite to each other, the first end being connected to the recessed section, and the second end being inclined away from the bent section, along the first direction and on the side opposite to the recessed direction of the recessed section, the height of the second end being less than or equal to the height of the highest point of the connecting section.

16. The rainproof structure according to claim 15, characterized in that, The connecting segment has a third end and a fourth end opposite to each other. The third end is disposed away from the recessed segment relative to the fourth end. The fourth end is connected to the recessed segment. Along the first direction, the height of the fourth end is less than the height of the third end.

17. The rainproof structure according to claim 15, characterized in that, The rainproof structure also includes a support member, which is connected to the rainproof member and used to connect with the cargo box body.

18. A truck, characterized in that, Includes a cargo box as described in any one of claims 1 to 14 or a rainproof structure as described in any one of claims 15 to 17.

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