Truck head and truck with same

Abstract

The utility model discloses a truck head and a truck with the same. A cab is arranged in the vehicle head, the outer surface of the vehicle head comprises a front end face and a rear end face, the front end face is located on the front side of the cab, the rear end face is located on the rear side of the cab, in the left-right direction of the cab, the width of the front end face is W1, the width of the rear end face is W2, and the relation that W1 / W2 is larger than or equal to 0.75 and smaller than or equal to 0.9 is met. The windward area right in front of the vehicle head can be reduced when the vehicle runs, so that the wind resistance of the vehicle is reduced, and the endurance mileage of the vehicle is increased.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202410350126.5, filed on March 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of vehicle technology, and more specifically, to a cab and a truck having the same cab. Background Technology

[0004] In related technologies, trucks on the market usually adopt a flat-front structure to ensure sufficient visibility for passengers. However, trucks with flat-front structures have a larger frontal area when driving, resulting in greater wind resistance and higher energy consumption. Utility Model Content

[0005] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes a vehicle front end that can reduce wind resistance.

[0006] This utility model also proposes a truck having the aforementioned cab.

[0007] According to an embodiment of the present invention, the vehicle front includes a driver's cab. The outer surface of the vehicle front includes a front end face and a rear end face. The front end face is located on the front side of the driver's cab, and the rear end face is located on the rear side of the driver's cab. In the left-right direction of the driver's cab, the width of the front end face is W1, and the width of the rear end face is W2, satisfying the relationship: 0.75≤W1 / W2≤0.9.

[0008] According to the embodiment of this utility model, the width of the front end face of the vehicle is W1 and the width of the rear end face is W2, which satisfies the relationship: 0.75≤W1 / W2≤0.9. The vehicle head structure is a wedge-shaped head that is narrow in the front and wide in the rear, which can reduce the windward area in front of the vehicle when it is driving, thereby helping to reduce the wind resistance of the vehicle and improve the driving range of the vehicle.

[0009] According to some embodiments of the present invention, the intersection of the front end face and the horizontal plane is a first arc, the radius of the first arc is R1, and R1≥1 / 2W1.

[0010] According to some embodiments of this utility model, R1 satisfies the relationship: 1700mm≤R1≤2100mm.

[0011] According to some embodiments of the present invention, the outer surface of the vehicle head further includes a left end face and a right end face. The left end face is located on the left side of the cab, and a first chamfer is formed at the connection between the left end face and the front end face. The radius of the first chamfer is R11, and R11 ≥ 380 mm. The right end face is located on the right side of the cab, and a second chamfer is formed at the connection between the right end face and the front end face. The radius of the second chamfer is R21, and R21 ≥ 380 mm.

[0012] According to some embodiments of the present invention, the outer surface of the vehicle head further includes a top surface, the top surface being located on the upper side of the cab, and a third chamfer being formed at the connection between the top surface and the front surface, the radius of the third chamfer being R31, wherein R31 ≥ 890 mm.

[0013] According to some embodiments of this utility model, the intersection of the top surface and the vertical surface is a second arc, the radius of the second arc is R2, and R2≥2500mm, wherein the vertical surface is perpendicular to the horizontal surface and parallel to the front-rear direction of the cab.

[0014] According to some embodiments of this utility model, the intersection line of the front end face and the vertical plane is a third arc, the radius of the third arc is R3, and R3≥1860mm, wherein the vertical plane is perpendicular to the horizontal plane and parallel to the front-rear direction of the cab.

[0015] According to some embodiments of this utility model, the angle between the tangent of the third arc and the vertical line is α, and α satisfies the relationship: 10°≤α≤20°.

[0016] According to some embodiments of this utility model, the front of the vehicle includes a windshield, the outer surface of the windshield located on the front side of the cab is the windshield front face, the front face includes the windshield front face, the intersection of the windshield front face and the vertical plane is a fourth arc, the radius of the fourth arc is R4, the R4≥1860mm, wherein the vertical plane is perpendicular to the horizontal plane and the vertical plane is parallel to the front-rear direction of the cab.

[0017] According to another embodiment of the present invention, the truck includes the aforementioned cab.

[0018] According to the embodiment of the present utility model, the width of the front end face of the truck is W1 and the width of the rear end face is W2, which satisfies the relationship: 0.75≤W1 / W2≤0.9. The truck head structure is a wedge-shaped head that is narrow in the front and wide in the rear, which can reduce the windward area directly in front of the truck head when it is driving, thereby helping to reduce the truck's wind resistance and increase the truck's driving range.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a top view of the front of the vehicle according to an embodiment of the present utility model;

[0021] Figure 2 This is a left view of the front of the vehicle according to an embodiment of the present utility model;

[0022] Figure 3 This is a perspective view of the front of a vehicle according to an embodiment of the present utility model;

[0023] Figure 4 This is an internal schematic diagram of the front of a vehicle according to an embodiment of the present utility model.

[0024] Figure label:

[0025] 1. Cab; 2. Front end face; 3. Left end face; 4. Right end face; 5. Side outer panel; 6. Lower door guard; 7. Top end face; 8. Front roof; 9. Front windshield; 10. Front hood; 11. Wiper cover; 12. Concealed wiper; 13. Electronic rearview mirror; 14. Concealed door handle; 15. Door; 16. Front bumper; 16. Air duct; 17. Bumper underbody protection plate; 18. Side air deflector; 19. Side skirt; 20. Roof side panel; 21. Sunroof; 22. Middle roof; 23. Rear roof; 24. Roof spoiler; 100. Front of the vehicle. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, 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 utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The following is combined Figures 1-4 A detailed description is given of the cab 100 and the truck having it according to an embodiment of the present invention.

[0031] Reference Figure 1 As shown, according to an embodiment of the present invention, the vehicle front 100 includes a driver's cab 1. The outer surface of the vehicle front 100 includes a front end face 2 and a rear end face. The front end face 2 is located on the front side of the driver's cab 1, and the rear end face is located on the rear side of the driver's cab 1. In the left-right direction of the driver's cab 1, the width of the front end face 2 is W1, and the width of the rear end face is W2, satisfying the relationship: 0.75 ≤ W1 / W2 ≤ 0.9. For example, W1 / W2 can be 0.75, 0.82, or 0.9. In other words, W1... W2 = 0.75, W1:W2 = 0.82 or W1:W2 = 0.9, the width of the front face 2 is smaller than the width of the rear face, the front of the vehicle 100 can be constructed as a wedge-shaped front of the vehicle 100 which is narrow in the front and wide in the rear, which can reduce the frontal area of ​​the front of the vehicle 100 when the vehicle is driving, thereby helping to reduce the wind resistance of the vehicle, reduce the energy consumption of the vehicle, and increase the driving range of the vehicle. When the vehicle is a fuel vehicle, it can improve the fuel economy of the vehicle. When the vehicle is an electric vehicle or a hybrid vehicle, it can reduce the power consumption of the vehicle.

[0032] Understandably, when W1 / W2 < 0.75, the front of cab 1 is relatively narrow, resulting in a smaller cab space and poorer comfort for the driver and passengers. When W1 / W2 > 0.9, the front of cab 1 is relatively wide, resulting in a larger frontal area of ​​the cab 100, which makes the reduction of wind resistance at the cab 100 less significant.

[0033] In a specific embodiment of this utility model, W1 = 2050mm, W2 = 2500mm, W1 / W2 = 0.82, the front end size of the cab 1 is moderate, and the space of the cab 1 is large, which is conducive to improving the comfort of the driver and passengers, and can significantly reduce the wind resistance of the front of the vehicle 100 while ensuring the space of the cab 1.

[0034] According to the embodiment of the present invention, the width of the front end face 2 of the vehicle 100 is W1 and the width of the rear end face is W2, satisfying the relationship: 0.75≤W1 / W2≤0.9. The vehicle 100 is constructed as a wedge-shaped vehicle 100 that is narrow in the front and wide in the rear, which can reduce the windward area directly in front of the vehicle 100 when the vehicle is driving, thereby helping to reduce the wind resistance of the vehicle and improve the driving range of the vehicle.

[0035] In some embodiments of this utility model, reference is made to Figure 1 As shown, the intersection of the front end face 2 and the horizontal plane is the first arc, and the radius of the first arc is R1, where R1 ≥ 1 / 2 W1. For example, R1 can be 1 / 2 W1, 3 / 4 W1, W1, etc. The center of the first arc is located inside the cab 1 or on the rear side of the cab 1. In other words, the front end face 2 is constructed as an arc-shaped surface that bulges forward toward the front of the vehicle head 100. Airflow can flow smoothly on the front end face 2 toward the rear of the vehicle head 100, which helps to reduce the wind resistance of the vehicle head 100.

[0036] It is understandable that, in the vertical direction of the cab 1, the intersection line between the front face 2 and the horizontal plane at any height is always the first arc with a radius R1 ≥ 1 / 2W1. In other words, in... Figure 1 In the top view of the front end 100 shown, the front end face 2 is an overall curved surface.

[0037] It should be noted that, given a fixed width of the front face 2, the smaller the radius of the first arc, the greater the curvature of the front face 2, resulting in better wind resistance reduction of the front end 100. However, the front face 2 is more difficult to manufacture. At the same time, given a fixed front-to-rear dimension of the front end 100, the smaller the radius of the first arc, the smaller the space of the cab 1. When R1 = 1 / 2W1, the curvature of the front face 2 is at its maximum, which can significantly reduce the wind resistance of the front end 100.

[0038] In some embodiments of this utility model, R1 satisfies the relationship: 1700mm≤R1≤2100mm. For example, R1 can be 1700mm, 1900mm, 2100mm, etc., so as to reduce the difficulty of manufacturing the front end face 2 while ensuring the reduction of wind resistance of the front end 100, and to ensure the space of the cab 1. Preferably, R1 is 1900mm, which can balance the wind resistance of the front end 100, the manufacturing difficulty and the space of the cab 1. The tilt angle of the front end face 2 does not need to be set too large to effectively reduce wind resistance, so that the truck can have more efficient aerodynamic performance while retaining more usable space and cargo capacity.

[0039] In some embodiments of the present invention, R1 ≥ 1900mm, for example, R1 can be 1900mm, 1950mm, 2000mm, etc., so as to reduce the difficulty of processing and manufacturing the front end face 2 while ensuring the reduction of wind resistance of the front end 100 and ensuring the space of the cab 1.

[0040] In one specific embodiment of this utility model, W1 = 2050mm and R1 = 1900mm, in order to balance the wind resistance of the front end 100, the difficulty of processing, and the space of the cab 1.

[0041] In some embodiments of this utility model, reference is made to Figure 1 As shown, the outer surface of the front end 100 also includes a left end face 3 and a right end face 4. The left end face 3 is located on the left side of the cab 1, and a first chamfer is formed at the connection between the left end face 3 and the front end face 2. The radius of the first chamfer is R11, and R11≥380mm. The right end face 4 is located on the right side of the cab 1, and a second chamfer is formed at the connection between the right end face 4 and the front end face 2. The radius of the second chamfer is R21, and R21≥380mm. The first chamfer can be located at the left A-pillar of the front end 100, and the center of the first chamfer is located inside the cab 1. The second chamfer can be located at the right A-pillar of the front end 100, and the center of the second chamfer is located inside the cab 1. The first chamfer makes the connection between the left end face 3 and the front end face 2 form a smooth curved surface, and the second chamfer makes the connection between the right end face 4 and the front end face 2 form a smooth curved surface. When the vehicle is in motion, the airflow can flow smoothly at the first chamfer and the second chamfer, which helps to reduce the resistance of the airflow passing over the front end 100. For example, R11 can be 380mm, 390mm, 400mm, etc., and R21 can be 380mm, 390mm, 400mm, etc. The left end face 3 and the front end face 2 are connected by a first chamfer, and the right end face 4 and the front end face 2 are connected by a second chamfer, which can effectively reduce the wind resistance of the front of the vehicle 100, thereby helping to improve the vehicle's range and driving performance.

[0042] In some embodiments of this utility model, reference is made to Figure 1 and 2As shown, the outer surface of the front end 100 also includes a top surface 7, which is located on the upper side of the cab 1. A third chamfer is formed at the connection between the top surface 7 and the front surface 2. The radius of the third chamfer is R31, where R31 ≥ 890 mm. The center of the third chamfer is located inside the cab 1. For example, R31 can be 890 mm, 900 mm, 910 mm, etc. The third chamfer makes the connection between the top surface 7 and the front surface 2 form a smooth curved surface. When the vehicle is in motion, the airflow can flow smoothly at the third chamfer, which helps to reduce the wind resistance of the front end 100 and improve the vehicle's range and driving performance.

[0043] In some embodiments of this utility model, reference is made to Figure 2 As shown, the intersection of the top surface 7 and the vertical surface is the second arc, and the radius of the second arc is R2, where R2 ≥ 2500 mm. The vertical surface is perpendicular to the horizontal surface and parallel to the front-rear direction of the cab 1. The center of the second arc is located inside or below the cab 1. For example, R2 can be 2500 mm, 2550 mm, 2600 mm, etc., so that the top surface 7 is constructed as a smooth curved surface, which facilitates airflow and thus helps to reduce the wind resistance of the front of the vehicle 100.

[0044] It is understandable that, in the left-right direction of the cab 1, the intersection line between the top surface 7 and any vertical surface at any position is a second arc with a radius R2 ≥ 2500 mm. In other words, in... Figure 2 In the left view of the front of the vehicle 100 shown, the top surface 7 is an arc-shaped surface.

[0045] In some embodiments of this utility model, reference is made to Figure 2 As shown, the intersection of the front end face 2 and the vertical plane is the third arc, and the radius of the third arc is R3, where R3 ≥ 1860 mm. The vertical plane is perpendicular to the horizontal plane and parallel to the front-rear direction of the cab 1. The center of the third arc is located inside the cab 1 or on the rear side of the cab 1. For example, R3 can be 1860 mm, 1900 mm, 1940 mm, etc., to make the front end face 2 smoother, which helps to further reduce the wind resistance of the front end 100.

[0046] It is understandable that, in the left-right direction of the cab 1, the intersection line between the front face 2 and any vertical plane at any position is a third arc with a radius R3 ≥ 1860 mm. In other words, in... Figure 2 In the left view of the front end 100 shown, the front end face 2 is an overall curved surface.

[0047] In some embodiments of this utility model, the angle between the tangent of the third arc and the vertical line is α, and α satisfies the relationship: 10°≤α≤20°. For example, α can be 10°, 13.6°, 15°, 20°, etc. The front end face 2 is inclined to the rear of the cab 1, that is, the upper end of the front end face 2 is located behind the lower end of the front end face 2, which helps to reduce the wind resistance of the front of the vehicle 100.

[0048] Understandably, when α < 10°, the tilt angle of the front face 2 is small, which is not conducive to reducing the wind resistance of the front of the vehicle 100. When α > 20°, the tilt angle of the front face 2 is large, which leads to the compression of the space in the cab 1 and the poor comfort of the driver and passengers. When α is in the range of 10° to 20°, the tilt angle of the front face 2 is moderate, which can avoid the excessive compression of the space in the cab 1, ensure the comfort of the driver and passengers, and reduce the wind resistance of the front of the vehicle 100. In addition, the moderate tilt angle of the front face 2 is also conducive to the smooth connection between the front face 2 and the top face 7.

[0049] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 As shown, the front of the vehicle 100 includes a front windshield 9. The outer surface of the front windshield 9 located on the front side of the cab 1 is the front windshield face. The front windshield face 2 includes the front windshield face 2. The intersection of the front windshield face and the vertical plane is the fourth arc. The radius of the fourth arc is R4, and R4 ≥ 1860 mm. The vertical plane is perpendicular to the horizontal plane and parallel to the front-rear direction of the cab 1. The center of the fourth arc is located inside the cab 1 or on the rear side of the cab 1. For example, R3 can be 1860 mm, 1900 mm, 1940 mm, etc., to make the front windshield face smoother, thereby helping to reduce the wind resistance of the front of the vehicle 100.

[0050] It is understandable that, in the left-right direction of the cab 1, the intersection line between the front face of the windshield and any vertical plane at any position is a fourth arc with a radius R4 ≥ 1860 mm. In other words, in... Figure 2 In the left view of the front of the car 100 shown, the front surface of the windshield is generally curved.

[0051] In some embodiments of this utility model, the angle between the tangent of the fourth arc and the vertical line is β, and β satisfies the relationship: 10°≤β≤20°. For example, β can be 10°, 13.6°, 15°, 20°, etc. The front windshield 9 is tilted, which helps to reduce the wind resistance of the front of the vehicle 100.

[0052] Understandably, when β < 10°, the tilt angle of the windshield 9 is too small, which is not conducive to reducing the wind resistance of the front of the vehicle 100. When β > 20°, the tilt angle of the windshield 9 is too large, which leads to the compression of the space in the cab 1 and the poor comfort of the driver and passengers. However, when β is in the range of 10° to 20°, the tilt angle of the windshield 9 is moderate, which can prevent the space in the cab 1 from being excessively compressed, ensure the comfort of the driver and passengers, and also reduce the wind resistance of the front of the vehicle 100.

[0053] In related technologies, trucks often feature a long or bullet-shaped cab design. By increasing the angle of the windshield, wind resistance is reduced. Typically, a large windshield angle (>20°) is required to achieve the desired wind resistance reduction. However, an excessively large windshield angle can lead to excessive compression of the cab space, resulting in poor comfort for the driver and passengers. To ensure cab space, the length of the cab can be increased. However, with a fixed truck length, increasing the cab length will reduce the cargo box length and decrease the truck's carrying capacity. Increasing the overall length of the truck will reduce its flexibility and adaptability.

[0054] It should be noted that the inventors discovered that the front of the vehicle with a large curvature windshield 9 naturally has lower wind resistance than the front of the vehicle with a large angle windshield 9. According to the embodiment of the present invention, the windshield 9 is constructed as an arc-shaped surface protruding forward of the front of the vehicle, and the windshield 9 is appropriately tilted to significantly reduce the wind resistance of the front of the vehicle. Compared with the front of the vehicle with a small long nose or bullet-shaped front, the front of the vehicle in the embodiment of the present invention has a better wind resistance reduction effect while taking into account the space of the cab 1 and the overall length limitation of the vehicle.

[0055] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 As shown, the front of the vehicle 100 also includes a front cover 10, which is located below the windshield 9. The outer surface of the front cover 10 located on the front side of the cab 1 is the front face of the mask. The front face 2 includes the front face of the mask. The intersection of the front face of the mask and the vertical plane is the fifth arc. The radius of the fifth arc is R5. R5 satisfies the relationship: 0.8R4≤R5≤1.2R4. The center of the fifth arc is located inside the cab 1 or on the rear side of the cab 1. For example, R5 can be 0.8R4, R4, 1.2R4, etc., to make the front face of the mask smoother, which helps to reduce the wind resistance of the front of the vehicle 100. In addition, the curvature of the front cover 10 is close to the curvature of the windshield 9, which helps to smoothly connect the front cover 10 and the windshield 9.

[0056] It is understandable that, in the left-right direction of the cab 1, the intersection line between the front surface of the visor and any vertical plane at any position is the fifth arc with a radius of R5. In other words, in...Figure 2 In the left view of the front of the vehicle 100 shown, the front surface of the front grille is generally curved. When R5 < 0.8R4, the curvature difference between the front grille 10 and the windshield 9 is large, which is not conducive to a smooth connection between the front grille 10 and the windshield 9. When R5 > 1.2R4, the curvature difference between the front grille 10 and the windshield 9 is also large, which is not conducive to a smooth connection between the front grille 10 and the windshield 9. Preferably, R5 = R4, the curvature of the front grille 10 and the windshield 9 are the same, which facilitates a smooth connection between the front grille 10 and the windshield 9.

[0057] In some embodiments of this utility model, the angle between the tangent of the fifth arc and the vertical line is γ, and γ satisfies the relationship: 10°≤γ≤20°. For example, γ can be 10°, 13.6°, 15°, 20°, etc. The front cover 10 is tilted, which helps to reduce the wind resistance of the front of the vehicle 100.

[0058] Understandably, when γ < 10°, the tilt angle of the front grille 10 is too small, which is not conducive to reducing the wind resistance of the front of the vehicle 100. When γ > 20°, the tilt angle of the front grille 10 is too large, which causes the space inside the front of the vehicle 100 to be compressed. When γ is in the range of 10° to 20°, the tilt angle of the front grille 10 is moderate, which can avoid excessive compression of the space inside the front of the vehicle 100 and reduce the wind resistance of the front of the vehicle 100. In addition, the moderate tilt angle of the front grille 10 is also conducive to the smooth connection between the front grille 10 and the windshield 9.

[0059] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 As shown, the front of the vehicle 100 also includes a front bumper 16, which is located below the front cover 10. The outer surface of the front bumper 16 on the front side of the cab 1 is the front bumper face. The front face 2 includes the front bumper face. The intersection of the front bumper face and the vertical plane is the sixth arc, and the radius of the sixth arc is R6. R6 satisfies the relationship: 0.8R5≤R6≤1.2R5. The center of the sixth arc is located at the rear lower part of the cab 1. For example, R6 can be 0.8R5, R5, 1.2R5, etc., to make the front bumper face smoother, which helps to reduce the wind resistance of the front of the vehicle 100. In addition, the curvature of the front bumper 16 is close to the curvature of the front cover 10, which helps to smoothly connect the front bumper 16 and the front cover 10.

[0060] It is understandable that, in the left-right direction of the cab 1, the intersection line between the front face of the bumper and any vertical plane at any position is the sixth arc with a radius of R6. In other words, in... Figure 2In the left view of the front of the vehicle 100 shown, the front surface of the bumper is generally curved. When R6 < 0.8R5, the curvature difference between the front bumper 16 and the front cover 10 is large, which is not conducive to a smooth connection between the front bumper 16 and the front cover 10. When R6 > 1.2R5, the curvature difference between the front bumper 16 and the front cover 10 is also large, which is not conducive to a smooth connection between the front bumper 16 and the front cover 10. Preferably, R6 = R5, the curvature of the front bumper 16 is the same as the curvature of the front cover 10, which facilitates a smooth connection between the front bumper 16 and the front cover 10.

[0061] In some embodiments of this utility model, the angle between the tangent of the sixth arc and the vertical line is θ, and θ satisfies the relationship: 10°≤θ≤20°. For example, θ can be 10°, 13.6°, 15°, 20°, etc. The front bumper 16 is tilted, which helps to reduce the wind resistance of the front of the car 100.

[0062] Understandably, when θ < 10°, the tilt angle of the front bumper 16 is too small, which is not conducive to reducing the wind resistance of the front of the vehicle 100. When θ > 20°, the tilt angle of the front bumper 16 is too large, which causes the space inside the front of the vehicle 100 to be compressed. When θ is in the range of 10° to 20°, the tilt angle of the front bumper 16 is moderate, which can avoid excessive compression of the space inside the front of the vehicle 100 and can also reduce the wind resistance of the front of the vehicle 100. In addition, the moderate tilt angle of the front cover 10 is also conducive to the smooth connection between the front bumper 16 and the front cover 10.

[0063] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 As shown, in the left and right direction of the cab 1, the front bumper 16 has air ducts 161 on both sides, through which airflow can flow to the rear of the front of the vehicle 100, thereby helping to reduce the wind resistance of the front of the vehicle 100.

[0064] In some embodiments of this utility model, reference is made to Figure 3 As shown, the front of the vehicle 100 also includes a wiper cover 11 and a concealed wiper 12. The wiper cover 11 is located at the lower part of the windshield 9, and the concealed wiper 12 is hidden behind the wiper cover 11, which can reduce the eddies generated around the concealed wiper 12 when the front of the vehicle 100 is in motion.

[0065] In some embodiments of this utility model, reference is made to Figure 3As shown, on the left side of the front of the vehicle 100, the front of the vehicle 100 also includes a door 15, a side outer panel 5, a side deflector 18, a lower door guard 6, a side skirt 19, and a roof side panel 20. In the front-rear direction of the cab 1, the door 15, the side outer panel 5, and the side deflector 18 are arranged in sequence. The lower door guard 6 is located below the door, the side skirt 19 is located below the side outer panel 5, and the roof side panel 20 is located above the door 15 and the side outer panel 5. The outer surfaces of the door 15, the side outer panel 5, the side deflector 18, the lower door guard 6, the side skirt 19, and the roof side panel 20 on the left side of the cab 1 together form the left end face 3. The structure on the right side of the front of the vehicle 100 is radially symmetrical to the structure on the left side.

[0066] In some embodiments of this utility model, reference is made to Figure 3 As shown, the front of the vehicle 100 also includes a front roof 8, a sunroof 21, a middle roof 22, a rear roof 23, and a roof spoiler 24. In the front-rear direction of the cab 1, the front roof 8, sunroof 21, middle roof 22, rear roof 23, and roof spoiler 24 are arranged in sequence. A part of the outer surface of the front roof 8, the outer surface of the sunroof 21, the outer surface of the middle roof 22, the outer surface of the rear roof 23, and the outer surface of the roof spoiler 24 together form the top surface 7. Another part of the outer surface of the front roof 8, the front surface of the windshield, the outer surface of the wiper cover 11, the front surface of the visor, and the front surface of the bumper together form the front surface 2.

[0067] In some embodiments of this utility model, reference is made to Figure 3 As shown, the front of the vehicle 100 also includes an electronic rearview mirror 13, which is located on the side panel 20 of the roof. Compared with the traditional rearview mirror, the electronic rearview mirror 13 is smaller in size, has less wind resistance, and has a wider field of view.

[0068] In some embodiments of this utility model, reference is made to Figure 3 As shown, the front of the vehicle 100 also includes two hidden door handles 14, which are located on the left and right sides of the doors 15 of the front of the vehicle 100. Compared with traditional door handles, the hidden door handles 14 can be hidden inside the doors 15, thereby reducing the wind resistance of the front of the vehicle 100.

[0069] The truck according to another embodiment of the present invention includes the cab 100 of the above embodiment.

[0070] According to the embodiment of the present utility model, the width of the front end face 2 of the truck 100 is W1 and the width of the rear end face is W2, which satisfies the relationship: 0.75≤W1 / W2≤0.9. The truck 100 is constructed as a wedge-shaped truck 100 that is narrow in the front and wide in the rear, which can reduce the windward area directly in front of the truck 100 when the truck is driving, thereby helping to reduce the wind resistance of the truck and increase the driving range of the truck.

[0071] According to an embodiment of the present invention, the truck cab 100 is constructed as a wedge-shaped cab 100, narrow at the front and wide at the rear (the front width of the cab 1 is 2050mm, the rear width of the cab 1 is 2500mm, and the ratio of the front to the rear is 0.82). The front face 2 is constructed as an arc-shaped surface protruding forward from the cab 100, and the front face 2 is appropriately inclined. The front face 2 and the left end face 3 are transitioned by a first chamfer, the front face 2 and the right end face 4 are transitioned by a second chamfer, and the front face 2 and the top face 7 are transitioned by a third chamfer. The truck features a sun visor with a front bumper of 100mm, along with concealed wipers 12, concealed door handles 14, electronic rearview mirrors 13, air ducts 161 on both sides of the front bumper 16, a bumper underbody protection plate 17, large side air deflectors 18, integrated side skirts 19, and a flat body logo and emblem design. Ultimately, the truck achieves an ultra-low drag coefficient of 0.343. Compared to traditional trucks, this low-drag truck can achieve a fuel saving rate of over 10% at a speed of 80km / h, making it suitable for high-speed trunk line transportation.

[0072] According to embodiments of the present invention, the truck retains more passenger compartment space within current regulatory dimensions (see reference). Figure 4 As shown, based on the cab height of 2020mm, the distance from the seat back to the A-pillar of 750mm, and the cargo capacity, it has more efficient aerodynamic performance, a more novel and beautiful truck design, higher driver and passenger comfort, better fuel economy, lower drag coefficient, and higher space utilization in the cab 1.

[0073] In this embodiment, the front end face 2 is constructed as an arc-shaped surface protruding forward of the truck head 100. The front end face 2 and the left end face 3 are connected by a curved surface, the front end face 2 and the right end face 4 are connected by a curved surface, and the front end face 2 and the top end face 7 are connected by a curved surface, making the truck head 100 semi-teardrop shaped. The truck head 100 is narrower at the front and wider at the back, and the front end face 2 is inclined, which gives the truck head 100 a round head shape. This effectively reduces the frontal area of ​​the truck head 100, allowing the truck to retain more usable space and cargo capacity while achieving higher efficiency. In terms of aerodynamic performance, the truck also features concealed wipers 12, concealed door handles 14, electronic rearview mirrors 13, air ducts 161 on both sides of the front bumper 16, bumper underbody protection plate 17, large side deflectors 18 and integrated side skirts 19, and a flat body logo and emblem design. Ultimately, the truck achieves an ultra-low drag coefficient of 0.343. Compared to traditional trucks, the low drag truck of this utility model embodiment can achieve a fuel saving rate of over 10% at a speed of 80 km / h, making it suitable for high-speed trunk line transportation.

[0074] In addition, wind resistance can be further reduced by optimizing the structure of the truck's cargo box. For example, wind resistance can be reduced by compressing the distance between the cab and the cargo box, improving the flatness and smoothness of the cargo box surface, machining large chamfers at the front of the cargo box, using large-area side guards, and adding air deflectors at the rear of the cargo box. At the same time, the rear of the cargo box can be designed to resemble a teardrop shape, which reduces the height of the rear of the cargo box and helps to further reduce wind resistance, thereby improving the energy efficiency of the entire vehicle.

[0075] In the description of this specification, references to terms such as "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0076] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vehicle front, characterized in that, The front of the vehicle (100) has a driver's cab (1), and the outer surface of the front of the vehicle (100) includes: Front end face (2), the front end face (2) is located on the front side of the cab (1); The rear end face is located on the rear side of the cab (1); In the left-right direction of the cab (1), the width of the front end face (2) is W1 and the width of the rear end face is W2, satisfying the relationship: 0.75≤W1 / W2≤0.

9.

2. The vehicle front according to claim 1, characterized in that, The intersection of the front end face (2) and the horizontal plane is the first arc, and the radius of the first arc is R1, wherein R1≥1 / 2W1.

3. The vehicle front according to claim 2, characterized in that, The R1 satisfies the following relationship: 1700mm≤R1≤2100mm.

4. The vehicle front according to claim 3, characterized in that, The outer surface of the vehicle head (100) also includes: Left end face (3), the left end face (3) is located on the left side of the cab (1), and a first chamfer is formed at the connection between the left end face (3) and the front end face (2), the radius of the first chamfer is R11, and R11≥380mm; The right end face (4) is located on the right side of the cab (1). A second chamfer is formed at the connection between the right end face (4) and the front end face (2). The radius of the second chamfer is R21, and R21 ≥ 380 mm.

5. The vehicle front according to claim 3, characterized in that, The outer surface of the vehicle head (100) also includes: The top surface (7) is located on the upper side of the cab (1). A third chamfer is formed at the connection between the top surface (7) and the front surface (2). The radius of the third chamfer is R31, and R31 ≥ 890 mm.

6. The vehicle front according to claim 5, characterized in that, The intersection of the top surface (7) and the vertical surface is a second arc, the radius of the second arc is R2, R2≥2500mm, wherein the vertical surface is perpendicular to the horizontal surface and parallel to the front-rear direction of the cab (1).

7. The vehicle front according to any one of claims 1-5, characterized in that, The intersection of the front end face (2) and the vertical plane is a third arc, the radius of the third arc is R3, R3≥1860mm, wherein the vertical plane is perpendicular to the horizontal plane and the vertical plane is parallel to the front-rear direction of the cab (1).

8. The vehicle front according to claim 7, characterized in that, The angle between the tangent of the third arc and the vertical line is α, and α satisfies the relationship: 10°≤α≤20°.

9. The vehicle front according to any one of claims 1-5, characterized in that, The front of the vehicle (100) includes a front windshield (9), the outer surface of the front windshield (9) located on the front side of the cab (1) is the front windshield face, the front windshield face (2) includes the front windshield face, the intersection of the front windshield face and the vertical plane is the fourth arc, the radius of the fourth arc is R4, the R4≥1860mm, wherein the vertical plane is perpendicular to the horizontal plane and the vertical plane is parallel to the front-rear direction of the cab (1).

10. A truck, characterized in that, Includes the front end (100) according to any one of claims 1-9.

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