TWM621934U - Vehicle body structure for increasing propulsion force and further reducing wind resistance - Google Patents

Abstract

The new type is a vehicle body structure which can increase the front thrust and reduce the wind resistance, which comprises a vehicle body, the vehicle body has a front end surface and a rear end surface, the front end surface and the rear end surface are opposite end surfaces, and the rear end surface is concave to form a The force-receiving part, where the value of the depth of the force-receiving part divided by the length of the car body multiplied by 100% is greater than 5%; when the car body is in a dynamic state while traveling, the fluid flowing on both sides of the car body will be adjacent to the A Karman vortex street is formed at the rear end surface, so the fluid will rotate in the direction of the rear end surface in a vortex manner, and because the fluid flows in, it will present an inclined angle with respect to the rear end surface, so the fluid moving toward the rear end surface, Both can act on the force-receiving part, thereby achieving the effect of increasing the thrust applied to the car body, reducing the air resistance of the car body and reducing fuel consumption.

Description

Body structure that increases forward thrust and reduces wind resistance

The new type relates to a body structure, especially a body structure which can increase the front thrust and reduce the wind resistance.

The vehicle research and development of the existing technology, in order to respond to the policy of energy saving and carbon reduction of governments all over the world, are committed to further achieve the effect of energy saving. In addition to improving the engine performance and reducing the weight of the vehicle, the overall appearance design of the vehicle is also aimed at It is designed to streamline and reduce wind resistance. When the vehicle is running, after the fluid flows through the vehicle, vortices will be formed on both sides of the rear end of the vehicle. One of the vortices rotates clockwise, and the other The vortex rotates counterclockwise, and this fluid phenomenon is called Kármán vortex street.

Because of the phenomenon of the Karman vortex street, when the fluid flows through the vehicle, the vortices on both sides of the rear of the vehicle will form a forward force. Therefore, if the forward thrust can be effectively utilized, the air resistance can be reduced. However, the rear end of today's vehicles, whether they are small cars, SUVs, link cars and pickups, is mostly convex or flat, which is easy to blow into Therefore, the overall structure of the vehicle body structure in the prior art has the aforementioned problems and shortcomings, and needs to be improved.

In view of the deficiencies of the prior art, the present invention provides a vehicle body structure that can increase the front thrust and reduce the wind resistance. The rear end surface of the vehicle body is concavely formed to form a force-receiving portion to achieve the purpose of increasing the fluid thrust during traveling.

In order to achieve the above-mentioned new purpose, the technical means adopted in this new model is to design a vehicle body structure that can increase the front thrust and reduce the wind resistance, which includes a vehicle body, and the vehicle body has a front end surface and a rear end surface. The rear end surface is two opposite end surfaces, the rear end surface is concave to form a force receiving portion, the force receiving portion is concave from the rear end surface toward the front end surface with a depth, the depth of the force receiving portion is divided by the length of the vehicle body The value multiplied by 100% is greater than 5%.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concave to form a V-shaped groove structure, and the force-receiving portion has two side walls, two inclined surfaces and a groove, and the two side walls are respectively Located on the upper and lower opposite sides of the force-receiving part, the two inclined surfaces are respectively located on the other opposite side of the force-receiving part, the groove is formed at the bottom of the force-receiving part, and the depth of the force-receiving part is is the depth of the groove.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concave to form an arc-shaped groove structure, and the force-receiving portion has two side walls and an arc surface, and the two side walls are respectively located on the receiving portion. The upper and lower opposite sides of the force portion, the arc surface is laterally curved, and the depth of the force portion is the depth of the arc surface.

Further, in the aforementioned vehicle body structure capable of increasing front thrust and reducing wind resistance, the force-receiving portion is concave to form an asymmetrical oblique V-shaped groove structure, and the force-receiving portion has two side walls, a long side and a short side, The two side walls are respectively located on the upper and lower opposite sides of the force-receiving portion, the long side and the short side are respectively located on the left and right opposite sides of the force-receiving portion, and the intersection of the long side and the short side is formed. For a groove, the depth of the force-receiving portion is the depth of the groove.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concave to form a double V-shaped groove structure, the force-receiving portion has a plurality of side walls, a plurality of inclined surfaces and two grooves, and the plurality of side walls They are respectively located on the opposite sides of the upper and lower sides of the force-receiving part, the plural slopes are arranged in the left and right directions, and the groove is formed between any two adjacent slopes, and the depth of the force-receiving part is the groove of each groove depth.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the arc groove structure is replaced with a double arc groove structure.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the V-shaped groove structure is replaced by a plurality of V-shaped groove structures.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concave to form a plurality of arc-shaped groove structures, and the force-receiving portion has two side walls and a plurality of arc surfaces, and the two side walls are respectively located in the On the opposite sides of the upper and lower sides of the force-receiving portion, each arc surface is laterally curved, and the arc surfaces are juxtaposed along the left and right directions.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concave to form a trapezoidal groove structure, and the force-receiving portion has two side walls, two inclined surfaces and a bottom surface, and the two side walls are respectively located at The upper and lower opposite sides of the force-receiving portion, the two inclined surfaces are respectively located on the left and right opposite sides of the force-receiving portion, the bottom surface is located between the two inclined surfaces, and the depth of the force-receiving portion is the bottom surface. depth.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concavely formed into a side-arc groove-like structure, and the force-receiving portion has two side walls and an arc surface, and the two side walls are respectively located at The left and right opposite sides of the force-receiving portion, the arc surface is longitudinally curved, and the depth of the force-receiving portion is the concave depth of the arc surface.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concavely formed as a side V-shaped groove structure, and the force-receiving portion has two side walls and two side surfaces, and the two side walls are respectively located on the side wall. The left and right opposite sides of the force-receiving part are respectively located on the upper and lower opposite sides of the force-receiving part, and the intersection of the two side surfaces is a groove, and the groove is formed in the force-receiving part. the bottom of the groove and the groove extending in the lateral direction, the depth of the force-receiving part is the depth of the groove.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the side arc groove structure is replaced with a side double arc groove structure.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the side V-groove structure is replaced with a side double V-groove structure.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concavely formed as a side trapezoidal groove structure, the force-receiving portion has two side walls, two inclined surfaces and a bottom surface, the two side walls are concave. They are respectively located on the left and right opposite sides of the force-receiving portion, the two inclined surfaces are respectively located on the upper and lower opposite sides of the force-receiving portion, and the bottom surface is located between the two inclined surfaces. The depth of the force-receiving portion is the The depth of the concave bottom surface.

Further, in the vehicle body structure that can increase front thrust and reduce wind resistance, the force-receiving portion is concavely formed into a plurality of side V-shaped groove structures, and the force-receiving portion has a plurality of side walls, a plurality of inclined surfaces and a plurality of grooves, each of which is The side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surfaces are arranged along the upper and lower directions of the force-receiving portion, and the intersection of each adjacent inclined surface is a groove. The depth is the depth of the recess in the groove.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the plurality of side V-shaped groove structures are replaced with a plurality of side arc groove structures.

Further, in the aforementioned vehicle body structure capable of increasing front thrust and reducing wind resistance, the force-receiving portion is concavely formed into a laterally inclined V-shaped groove structure, and the force-receiving portion has two side walls, a long side and a short side, The two side walls are respectively located on the left and right opposite sides of the force-receiving portion, the long side and the short side are respectively located on the upper and lower opposite sides of the force-receiving portion, and the intersection of the long side and the short side is a groove, the groove is formed on the groove bottom of the force-receiving part and the groove extends in the lateral direction, and the depth of the force-receiving part is the depth of the concave groove of the groove.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the force-receiving portion is concavely formed into an oblique arc-shaped groove structure, and the force-receiving portion has two side walls, an inclined surface and an arc surface. The side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surface and the arc surface are respectively located on the upper and lower opposite sides of the force-receiving portion and are connected to each other, and the depth of the force-receiving portion is the arc surface. Concave depth.

Further, in the vehicle body structure that can increase the front thrust and reduce the wind resistance, the force-receiving portion is concavely formed into a side inclined arc-shaped groove structure, and the force-receiving portion has two side walls, an inclined surface and an arc surface. The two side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surface and the arc surface are respectively located on the upper and lower opposite sides of the force-receiving portion, one side of the inclined surface and one side of the arc surface The edges are connected, and the depth of the force-receiving portion is the concave depth of the arc surface.

The advantage of the present invention is that when the vehicle body is in a dynamic state, the fluid flowing through both sides of the vehicle body will form a Karman vortex street near the rear end surface, so the fluid will face the rear end surface in a vortex manner The direction of the screw is screwed in, and because the fluid flows in, it will present an inclined angle relative to the rear end surface, so the fluid moving toward the rear end surface can act on the force-receiving part, thereby increasing the thrust applied to the vehicle body, The effect of reducing the air resistance of the car body and reducing fuel consumption.

The technical means adopted by the present invention to achieve the predetermined purpose of the new model are further described below in conjunction with the drawings and the preferred embodiments of the present invention.

Please refer to FIG. 1 and FIG. 2 , the new vehicle body structure capable of increasing front thrust and reducing wind resistance comprises a vehicle body 10 having a front end surface 11 and a rear end surface 12 . The front end surface 11 and the rear end surface 11 The end faces 12 are two opposite end faces. The rear end face 12 of the vehicle body 10 is concave to form a force receiving portion 121 . As shown in FIG. 2 , the front end surface 11 is the front position of the vehicle body 10 , the rear end surface 12 is the rear end position of the vehicle body 10 , and the value of the concave depth of the force receiving portion 121 divided by the length of the vehicle body 10 is multiplied by 100% When the percentage is greater than 5%, the aforementioned depth refers to the distance from the rear end surface 12 to the concave bottom of the force receiving portion 121 , and the length of the vehicle body 10 refers to the distance from the front end surface 11 to the rear end surface 12 .

Please refer to FIG. 2 and FIG. 3 , in the first embodiment of the present invention, a force-receiving portion 121 is concavely formed in the rear end surface 12 of the vehicle body 10 , and the force-receiving portion 121 is concavely formed into a V-shaped groove structure. It has two side walls 122 , two inclined surfaces 123 and a groove 124 . The two side walls 122 are respectively located on two opposite sides of the force receiving portion 121 , that is, the upper and lower opposite sides of the vehicle body 10 , and the two inclined surfaces 123 are respectively located on the force receiving portion 121 . The other opposite side of the vehicle body 10, that is, the left and right opposite sides of the vehicle body 10, the groove 124 is formed on the groove bottom of the force receiving portion 121 and the groove 124 extends in the longitudinal direction, that is, the longitudinal direction of the vehicle body 10, but not in the This is limited, and the form of the concave can be changed according to the needs of the user, as long as the concave can form a groove and the value of the depth of the concave divided by the length of the vehicle body 10 times 100% is greater than 5% That is enough, and the preferred percentage is 15%.

The present invention has other embodiments. The following describes several different embodiments respectively, but not limited thereto. Please refer to FIG. 4 , which is the second embodiment of the present invention. The force-receiving portion 121A is viewed from above. The concave is formed into an arc-shaped groove structure. The force-receiving portion 121A has two side walls 122A and an arc surface 125A. The two side walls 122A are respectively located on the upper and lower opposite sides of the force-receiving portion 121A. The left and right directions of the vehicle body 10 are curved to form an arc surface, and the percentage of the depth of the arc surface 125A divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%.

Please refer to FIG. 5 , which is the third embodiment of the new model. The force-receiving portion 121B is concavely formed into an asymmetrical oblique V-shaped groove structure when viewed from above the vehicle body 10 . The force-receiving portion 121B has two side walls 122B, a The long side 126B and a short side 127B, the two side walls 122B are respectively located on the upper and lower opposite sides of the force receiving portion 121B, the long side 126B and the short side 127B are respectively located on the left and right opposite sides of the force receiving portion 121B, the long side The intersection position of 126B and the short face 127B is a groove 124B. The groove 124B is formed at the bottom of the groove of the force receiving portion 121B and the groove 124B extends in the longitudinal direction. The depth of the groove 124B is divided by the length of the vehicle body 10. A percentage of 100% is greater than 5%, and a preferred percentage is 11%.

Please refer to FIG. 6 , which is a fourth embodiment of the new model. The force-receiving portion 121C is concavely formed into a trapezoidal groove-like structure when viewed from above the vehicle body 10 . The force-receiving portion 121C has two side walls 122C, two inclined surfaces 123C and A bottom surface 128C, two side walls 122C are located on the upper and lower opposite sides of the force-receiving portion 121C, respectively, and two inclined surfaces 123C are located on the left and right opposite sides of the force-receiving portion 121C, respectively. The bottom surface 128C is located between the two inclined surfaces 123C, and the bottom surface 128C The percentage of the depth divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%, and a preferred percentage is 13%.

Please refer to FIG. 7 , which is the fifth embodiment of the new model. The force-receiving portion 121D is concavely formed into a double V-shaped groove structure when viewed from above the vehicle body 10 . The force-receiving portion 121D has four side walls 122D and four inclined surfaces 123D. and two grooves 124D, the four side walls 122D are respectively located on the upper and lower opposite sides of the force receiving portion 121D and each side has two side walls 122D juxtaposed, and the four inclined surfaces 123D are arranged along the left and right directions, and are located on the left two inclined surfaces Grooves 124D are respectively formed between 123D and the two inclined surfaces 123D on the right side. The grooves 124D are formed at the intersection of the two adjacent inclined surfaces 123D. The percentage of 100% is greater than 5%, and the preferred percentage is 10%. The aforementioned double V-shaped structure is not limited to this, and can also be composed of multiple V-shaped structures, ie, a plurality of V-shaped structures that are continuous in the lateral direction.

Please refer to FIG. 8 , which is the sixth embodiment of the new model. The force-receiving portion 121E is concavely formed into a plurality of arc-shaped groove-like structures when viewed from above the vehicle body 10 . The force-receiving portion 121E has two side walls 122E and a plurality of arc surfaces. 125E, the two side walls 122E are respectively located on the upper and lower opposite sides of the force-receiving portion 121E, and each arc surface 125E is curved laterally, that is, curved toward the left and right directions of the vehicle body 10 to form an arc surface, and each arc surface 125E is curved. Along the left and right directions, the percentage of the concave depth of each arc surface 125D divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%. The distance between the bottom ends of the arc surfaces 125E is not limited to the above-mentioned plural arc structures, and can also be only a double arc structure.

Please refer to FIG. 9 , which is a seventh embodiment of the new model. The force-receiving portion 121F is concave in an arc-shaped groove-like structure (side arc) when viewed from the side of the vehicle body 10 , and the force-receiving portion 121F has two side walls 122F. and an arc surface 125F, the two side walls 122F are respectively located on the left and right opposite sides of the force receiving portion 121F, and the arc surface 125F is longitudinally curved, that is, it is bent toward the upper and lower directions of the vehicle body 10 to form an arc surface. The percentage of the depth of the 125F concave divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%, and a preferred percentage is 14.3%.

Please refer to FIG. 10 , which is the eighth embodiment of the new model. The force-receiving portion 121G is concave in a slanted V-shaped groove structure (lateral oblique V-shape) when viewed from the side of the vehicle body 10 . The force-receiving portion 121G has two The side wall 122G, a long side 126G and a short side 127G, the two side walls 122G are respectively located on the left and right opposite sides of the force receiving portion 121G, and the long side 126G and the short side 127G are respectively located on the upper and lower opposite sides of the force receiving portion 121G The intersection position of the side, the long surface 126G and the short surface 127G is a groove 124G. The groove 124G is formed at the bottom of the groove of the force-receiving portion 121G and the groove 124G extends in the lateral direction. The depth of the groove 124G is divided by the body 10 . The percentage of length multiplied by 100% is greater than 5%, and a preferred percentage is 8.8%.

Please refer to FIG. 11 , which is the ninth embodiment of the new model. The force-receiving portion 121H is concave inwardly as a sloping arc-shaped groove structure (side oblique arc type) when viewed from the side of the vehicle body 10 . The force-receiving portion 121H has two The side wall 122H, an inclined surface 123H and an arc surface 125H, the two side walls 122H are respectively located on the left and right opposite sides of the force receiving portion 121H, the inclined surface 123H and the arc surface 125H are respectively located on the upper and lower opposite sides of the force receiving portion 121H, One side of the inclined surface 123H is connected to one side of the cambered surface 125H, and the percentage of the depth of the cambered surface 125H divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%.

Please refer to FIG. 12 , which is a tenth embodiment of the new model. The force-receiving portion 121I is concave in a plurality of V-shaped groove structures (plural side V-shapes) when viewed from the side of the vehicle body 10 , and the force-receiving portion 121I has a plurality of V-shaped grooves. The side walls 122I, the plurality of inclined surfaces 123I and the plurality of grooves 124I, each side wall 122I is located on the left and right opposite sides of the force-receiving portion 121I respectively, the inclined surfaces 123I are arranged along the upper and lower directions of the force-receiving portion 121I, and the adjacent inclined surfaces 123I Grooves 124I are formed at the intersection of the grooves 124I, the depths of the grooves 124I are the same, and the value of the depth of the grooves 124I divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%. However, it can also be a double V-shaped structure or a complex arc structure (plural side arc type), which is a simple change of the shape and quantity, so it will not be described in detail.

Please refer to FIG. 13 , which is an eleventh embodiment of the new model. The force-receiving portion 121J is concave in a trapezoidal groove-like structure (side trapezoid) when viewed from the side of the vehicle body 10 , and the force-receiving portion 121J has two side walls. 122J, two inclined surfaces 123J and a bottom surface 128J, the two side walls 122J are respectively located on the left and right opposite sides of the force receiving portion 121J, the two inclined surfaces 123J are respectively located on the upper and lower opposite sides of the force receiving portion 121J, and the bottom surface 128J is located on the two inclined surfaces Between 123J, the percentage of the depth of the bottom surface 128J divided by the length of the vehicle body 10 multiplied by 100% is greater than 5%, and the preferred percentage is 8%.

Please refer to FIG. 14 , which is the twelfth embodiment of the new model. The force-receiving portion 121K is concave in a V-shaped groove structure (side V-shape) when viewed from the side of the vehicle body 10 , and the force-receiving portion 121K has two side walls. 122K and the two side surfaces 123K, the two side walls 122K are respectively located on the left and right opposite sides of the force-receiving portion 121K, the two side surfaces 123K are respectively located on the upper and lower opposite sides of the force-receiving portion 121K, and the intersection of the two side surfaces 123K is a groove. The groove 124K, the groove 124K is formed at the groove bottom of the force-receiving portion 121K and the groove 124K extends in the lateral direction. The best percentage is 12%.

Please refer to Table 1. It is found through experiments that the forward thrust of the fluid is related to the properties of the car body itself. The above experiments were carried out in a wind tunnel. Three different types were tested respectively. The bottom of a spring scale was fixed and pasted on the front bottom plate of the wind tunnel test section. The hook end of the scale was connected to the model car and the spring scale was reset to zero. After starting the fan in the wind tunnel, the corresponding 60km/h and 70km/h And under the wind speed of 80km/h and different vehicle speeds, read the tensile force value of the spring scale. The experimental data is listed in the following table. Value (unit: gw) presented: Speed (km/hr) Control group (the rear face is flat) Experimental group (the rear end is arc-shaped) Experimental group (the rear face is V-shaped) 60 82 72 62 70 120 80 81.6 80 150 116.6 95 Table I

100％： 車速 減少值/減少率 後端面為弧型 後端面為V型 60 減少值(gw) 10 20 減少率(％) 12.2％ 24.4％ 70 減少值(gw) 38.4 40 減少率(％) 32％ 33.3％ 80 減少值(gw) 33.4 55 減少率(％) 22.2％ 36.6％ 表二 Please refer to Table 2, the values presented are the reduction value and reduction rate of air resistance at different speeds, where reduction rate = (the value of the spring balance of the control group - the value of the spring balance of the experimental group) / the value of the spring balance of the control group

100%: speed Reduction value/Reduction rate The rear end is curved The rear face is V-shaped 60 Reduced value (gw) 10 20 Reduction rate (%) 12.2% 24.4% 70 Reduced value (gw) 38.4 40 Reduction rate (%) 32% 33.3% 80 Reduced value (gw) 33.4 55 Reduction rate (%) 22.2% 36.6% Table II

Therefore, it can be found from the experimental data that if the vehicle speed is faster, the reduction value and the reduction rate will increase, and the reduction rate of the structure with the rear face 12 being V-shaped is larger than that of the structure with the rear face 12 being arc-shaped.

Please refer to Table 3, the values presented are when the speed of the control group is set at 60km/h and the value of the spring balance is 82gw, the value of the spring balance of the force-receiving parts 121 of different shapes in the experimental group, compared with the control group Group spring balance reduction value and reduction rate: V shape Oblique V Double V arc trapezoid side arc side ladder side slope V Side V Spring balance value (gw) 62 70 75 72 58 65 61 70 60 Reduced value (gw) 20 12 7 10 twenty four 17 twenty one 12 twenty two Reduction rate (%) 24.4 14.6 8.5 12.2 29.3 20.7 25.6 14.6 26.8

Therefore, it can be found from the experimental data that no matter what the shape of the force receiving portion 121 is, compared with the control group, the value of the spring balance will be reduced, in other words, the air resistance will also be reduced.

The new type can be applied to the rear compartment cover of a car or the compartment door of a truck. Please refer to FIG. 1 and FIG. 3 . Taking the compartment door applied to a truck as an example, when the vehicle body 10 is in a dynamic state while traveling, flow through The fluid 20 on both sides of the vehicle body 10 will form a Karman vortex street at a position adjacent to the rear end face 12 , so the fluid 20 will rotate in the direction of the rear end face 12 in a vortex manner, and because the fluid 20 flows into the rear face 12 relative to the rear end face 12 It will present an inclined angle, so that the fluid 20 moving towards the rear end surface 12 can act on the force receiving portion 121 with the inclined surface 123, so as to increase the thrust applied to the vehicle body 10 and reduce the air of the vehicle body 10. Resistance and the effect of reducing fuel consumption.

In the foregoing process, the present embodiment takes the fluid 20 flowing through the left and right sides of the vehicle body 10 as an example, but it is not limited to this. In fact, the fluid 20 flowing through the upper and lower sides of the vehicle body 10 will also be adjacent to the A Karman vortex street is formed at the position of the rear end face 12 , and since the principle is the same, it will not be repeated here.

The above is only a preferred embodiment of the creation, and does not limit the creation in any form. Although the creation has been disclosed as a preferred embodiment, it is not intended to limit the creation. Those of ordinary knowledge, within the scope of the technical solution of the creation, can make some changes or modifications by using the technical content disclosed above as equivalent embodiments of equivalent changes, but any content that does not depart from the technical solution of the creation, according to this The technical essence of the creation Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the creation.

10: Body 11: Front face 12: rear face 121: Forced Department 121(A~K): Force-receiving part 122: Sidewall 122(A~K):Sidewall 123: Bevel 123 (C, D, H, I, J, K): Bevel 124: Groove 124 (B, D, G, H, I, K): Groove 125 (A, E, F, H): Arc 126 (B, G): long face 127 (B, G): short side 128(C, J): Bottom 20: Fluid

FIG. 1 is a three-dimensional appearance view of the first embodiment of the present invention. FIG. 2 is a side view of the first embodiment of the present invention. FIG. 3 is a partial top view flow field schematic diagram of the first embodiment of the present invention. FIG. 4 is a schematic top view of the second embodiment of the present invention. FIG. 5 is a schematic top view of the third embodiment of the present invention. FIG. 6 is a schematic top view of the fourth embodiment of the present invention. FIG. 7 is a schematic top view of the fifth embodiment of the present invention. FIG. 8 is a schematic top view of the sixth embodiment of the present invention. 9 is a schematic side view of a seventh embodiment of the present invention. FIG. 10 is a schematic side view of the eighth embodiment of the present invention. FIG. 11 is a schematic side view of the ninth embodiment of the present invention. FIG. 12 is a schematic side view of the tenth embodiment of the present invention. FIG. 13 is a schematic side view of the eleventh embodiment of the present invention. FIG. 14 is a schematic side view of the twelfth embodiment of the present invention.

10: Body

11: Front face

12: rear face

121: Forced Department

122: Sidewall

123: Bevel

124: Groove

Claims (19)

A vehicle body structure that can increase front thrust and reduce wind resistance, which comprises a vehicle body, the vehicle body has a front end surface and a rear end surface, the front end surface and the rear end surface are two opposite end surfaces, and the rear end surface is concave to form a The force-receiving portion is concave from the rear end surface to the front end surface with a depth, and the percentage of the depth of the force-receiving portion divided by the length of the vehicle body multiplied by 100% is greater than 5%. The vehicle body structure capable of increasing front thrust and reducing wind resistance as claimed in claim 1, wherein the force-receiving portion is concave to form a V-shaped groove structure, the force-receiving portion has two side walls, two inclined surfaces and a groove, the two side walls are respectively Located on the upper and lower opposite sides of the force-receiving part, the two inclined surfaces are respectively located on the other opposite side of the force-receiving part, the groove is formed at the bottom of the force-receiving part, and the depth of the force-receiving part is is the depth of the groove. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concave to form an arc-shaped groove structure, the force-receiving portion has two side walls and an arc surface, and the two side walls are respectively located on the receiving portion. The upper and lower opposite sides of the force portion, the arc surface is laterally curved, and the depth of the force portion is the depth of the arc surface. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concave to form an asymmetric oblique V-shaped groove structure, and the force-receiving portion has two side walls, a long side and a short side, The two side walls are respectively located on the upper and lower opposite sides of the force-receiving portion, the long side and the short side are respectively located on the left and right opposite sides of the force-receiving portion, and the intersection of the long side and the short side is formed. For a groove, the depth of the force-receiving portion is the depth of the groove. The vehicle body structure capable of increasing front thrust and reducing wind resistance as claimed in claim 1, wherein the force-receiving portion is concave to form a double V-shaped groove structure, the force-receiving portion has a plurality of side walls, a plurality of inclined surfaces and two grooves, and the plurality of side walls They are respectively located on the opposite sides of the upper and lower sides of the force-receiving part, the plural slopes are arranged in the left and right directions, and the groove is formed between any two adjacent slopes, and the depth of the force-receiving part is the groove of each groove depth. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 3, wherein the arc groove structure is replaced by a double arc groove structure. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 2, wherein the V-groove structure is replaced by a plurality of V-groove structures. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concave to form a plurality of arc-shaped groove structures, the force-receiving portion has two side walls and a plurality of arc surfaces, and the two side walls are located on the On the opposite sides of the upper and lower sides of the force-receiving portion, each arc surface is laterally curved, and the arc surfaces are juxtaposed along the left and right directions. The vehicle body structure capable of increasing forward thrust and reducing wind resistance according to claim 1, wherein the force-receiving portion is concave to form a trapezoidal groove structure, and the force-receiving portion has two side walls, two inclined surfaces and a bottom surface, and the two side walls are respectively located at The upper and lower opposite sides of the force-receiving portion, the two inclined surfaces are respectively located on the left and right opposite sides of the force-receiving portion, the bottom surface is located between the two inclined surfaces, and the depth of the force-receiving portion is the bottom surface. depth. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as claimed in claim 1, wherein the force-receiving portion is concavely formed into a side arc groove-like structure, the force-receiving portion has two side walls and an arc surface, and the two side walls are respectively located at The left and right opposite sides of the force-receiving portion, the arc surface is longitudinally curved, and the depth of the force-receiving portion is the concave depth of the arc surface. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concavely formed into a side V-shaped groove structure, the force-receiving portion has two side walls and two side surfaces, and the two side walls are respectively located on the side wall. The left and right opposite sides of the force-receiving part are respectively located on the upper and lower opposite sides of the force-receiving part, and the intersection of the two side surfaces is a groove, and the groove is formed in the force-receiving part. the bottom of the groove and the groove extending in the lateral direction, the depth of the force-receiving part is the depth of the groove. The vehicle body structure capable of increasing front thrust and reducing wind resistance as described in claim 10, wherein the side arc groove structure is replaced by a side double arc groove structure. The vehicle body structure capable of increasing front thrust and reducing wind resistance as described in claim 11, wherein the side V-groove structure is replaced by a side double V-groove structure. The vehicle body structure capable of increasing front thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concavely formed into a side trapezoidal groove structure, the force-receiving portion has two side walls, two inclined surfaces and a bottom surface, and the two side walls are concave. They are respectively located on the left and right opposite sides of the force-receiving portion, the two inclined surfaces are respectively located on the upper and lower opposite sides of the force-receiving portion, and the bottom surface is located between the two inclined surfaces. The depth of the force-receiving portion is the The depth of the concave bottom surface. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concavely formed into a plurality of side V-shaped groove-like structures, and the force-receiving portion has a plurality of side walls, a plurality of inclined surfaces and a plurality of grooves. The side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surfaces are arranged along the upper and lower directions of the force-receiving portion, and the intersection of each adjacent inclined surface is a groove. The depth is the depth of the recess in the groove. The vehicle body structure capable of increasing front thrust and reducing wind resistance as described in claim 15, wherein the plurality of side V-shaped groove structures are replaced by a plurality of side arc groove structures. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concavely formed into a laterally inclined V-shaped groove structure, and the force-receiving portion has two side walls, a long side and a short side, The two side walls are respectively located on the left and right opposite sides of the force-receiving portion, the long side and the short side are respectively located on the upper and lower opposite sides of the force-receiving portion, and the intersection of the long side and the short side is a groove, the groove is formed on the groove bottom of the force-receiving part and the groove extends in the lateral direction, and the depth of the force-receiving part is the depth of the concave groove of the groove. The vehicle body structure capable of increasing forward thrust and reducing wind resistance as described in claim 1, wherein the force-receiving portion is concavely formed into an oblique arc-shaped groove structure, the force-receiving portion has two side walls, an inclined surface and an arc surface, and the two The side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surface and the arc surface are respectively located on the upper and lower opposite sides of the force-receiving portion and are connected to each other, and the depth of the force-receiving portion is the arc surface. Concave depth. The vehicle body structure capable of increasing front thrust and reducing wind resistance as claimed in claim 1, wherein the force-receiving portion is concavely formed into a side inclined arc-shaped groove structure, the force-receiving portion has two side walls, an inclined surface and an arc surface. The two side walls are respectively located on the left and right opposite sides of the force-receiving portion, the inclined surface and the arc surface are respectively located on the upper and lower opposite sides of the force-receiving portion, one side of the inclined surface and one side of the arc surface The edges are connected, and the depth of the force-receiving portion is the concave depth of the arc surface.

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