Air knife, front bumper assembly and vehicle

Abstract

The invention relates to an air knife, a front bumper assembly and a vehicle, the air knife comprises a main body section and an extension section, the extension section is arranged on one side of the main body section in the left-right direction and extends in the up-down direction of the main body section, and the extension section comprises a first fixing part and a second fixing part which are used for being connected with a vehicle body; and the first fixing part and the second fixing part are arranged on the extension section at intervals in the vertical direction. According to the air knife, the modal performance can be improved, the vibration noise in the vehicle running process is reduced, and the aerodynamic performance of the whole vehicle is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a wind knife, a front bumper assembly and a vehicle. Background Art

[0002] When a vehicle is driving at high speed, the wind will generate resistance in the opposite direction of the vehicle's forward direction and lift in the opposite direction of gravity, thus affecting the vehicle's endurance and driving stability. In the related art, manufacturers have installed wind knives on the front bumper of the vehicle to reduce the vehicle's air resistance, but the wind knife structure design in the related art is unreasonable, which makes it easy for the vehicle to generate noise during driving and affects the aerodynamic performance of the entire vehicle. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a wind knife, which can improve modal performance, reduce vibration and noise during vehicle driving, and optimize the aerodynamic performance of the entire vehicle.

[0005] An embodiment of the present invention further provides a front bumper assembly.

[0006] An embodiment of the present invention further provides a vehicle.

[0007] The wind knife of an embodiment of the present invention includes: a main section and an extension section, wherein the extension section is arranged on one side of the left-right direction of the main section and extends along the up-down direction of the main section, and the extension section includes a first fixing portion and a second fixing portion for connecting to the vehicle body, and the first fixing portion and the second fixing portion are arranged on the extension section at intervals along the up-down direction.

[0008] According to the wind knife of the embodiment of the present invention, since the first fixing part and the second fixing part are arranged on the extension section at intervals along the up-down direction, and the first fixing part and the second fixing part are used to connect with the vehicle body, when the wind knife is assembled to the vehicle body, the first fixing part and the second fixing part can provide auxiliary support to the extension section to reduce the shaking amplitude of the extension section during the driving of the vehicle, improve the modal performance of the wind knife, and help reduce the noise during the driving of the vehicle. In addition, since the extension section of the wind knife extends along the up-down direction, the airflow on the front side of the vehicle can be combed, thereby reducing the wind resistance of the vehicle when driving. Therefore, the wind knife of the embodiment of the present invention can reduce the vibration noise during the driving of the vehicle and optimize the aerodynamic performance of the whole vehicle.

[0009] In some embodiments, the first fixing portion is disposed on an upper side of the second fixing portion, the first fixing portion is spaced apart from an upper end of the extension segment, and the second fixing portion is spaced apart from a lower end of the extension segment.

[0010] In some embodiments, the spacing of the extension sections along the up-down direction is A, and the spacing between the first fixed portion and the upper edge of the extension section is B1, wherein 0.3≤B1 / A≤0.5; and / or, the spacing of the extension sections along the up-down direction is A, and the spacing between the first fixed portion and the second fixed portion is B2, wherein 0.25≤B2 / A≤0.45; and / or, the spacing of the extension sections along the up-down direction is A, and the spacing between the second fixed portion and the lower edge of the extension section is B3, wherein 0.15≤B3 / A≤0.35.

[0011] In some embodiments, a third fixing portion for connecting to a vehicle body is disposed on the extension segment, and the third fixing portion is spaced apart from any one of the first fixing portion and the second fixing portion along a front-rear direction of the extension segment.

[0012] In some embodiments, the third fixing portion includes a first clamping hole, and the first clamping hole is arranged on one side of the second fixing portion along the front-to-back direction of the extension section.

[0013] In some embodiments, the third fixing portion further includes a first positioning hole, and the first positioning hole is arranged on one side of the second fixing portion along the front-to-back direction of the extension segment.

[0014] In some embodiments, the extension section includes an outer panel, an inner panel and a frame, the main section is connected to the outer panel, the inner panel is arranged on the inner side of the outer panel, and the frame is arranged between the inner panel and the outer panel.

[0015] In some embodiments, at least one of the first fixing portion and the second fixing portion includes a nut, the nut is disposed on the frame, and a matching hole is disposed on the inner plate, and the matching hole is arranged opposite to the nut.

[0016] In some embodiments, at least one of the first fixing portion and the second fixing portion includes a column, one end of the column is connected to the extension section, and the other end of the column is used to be connected to the vehicle body.

[0017] In some embodiments, the wind knife is provided with a plurality of buckles, some of which are provided on the main section and arranged at intervals along the left and right directions of the main section, and another part of which is arranged at the lower edge of the extension section.

[0018] A front bumper assembly according to another embodiment of the present invention comprises: a front bumper; a wind knife, wherein the wind knife is the wind knife described in any one of the embodiments of the present invention, the wind knife is arranged on the front bumper, and the first fixing portion and the second fixing portion are both connected to the front bumper.

[0019] According to the front bumper assembly of the embodiment of the present invention, since the first fixing portion and the second fixing portion are arranged on the extension section at intervals along the up-down direction, and the first fixing portion and the second fixing portion are used to connect with the vehicle body, when the wind knife is assembled to the vehicle body, the first fixing portion and the second fixing portion can provide auxiliary support to the extension section to reduce the shaking amplitude of the extension section during the driving of the vehicle, improve the modal performance of the wind knife, and help reduce the noise during the driving of the vehicle. In addition, since the extension section of the wind knife extends along the up-down direction, the airflow on the front side of the vehicle can be combed, thereby reducing the wind resistance of the vehicle when driving. Therefore, the front bumper assembly of the embodiment of the present invention can reduce the vibration noise during the driving of the vehicle and optimize the aerodynamic performance of the whole vehicle.

[0020] In some embodiments, the inner wall surface of the extension section is spaced apart from the outer wall surface of the front bumper to form a guide channel.

[0021] In some embodiments, a first support column and a second support column are provided on the front bumper, the first support column and the second support column are both located in the guide channel, and the first support column and the second support column are connected to the first fixing portion and the second fixing portion in a one-to-one correspondence.

[0022] In some embodiments, at least one of the first support column and the second support column includes a windward portion, the windward portion having an upper windward surface and a lower windward surface, the upper windward surface and the lower windward surface are arranged along the up and down directions, and in the direction from the air outlet of the guide channel to the air inlet of the guide channel, the distance between the upper windward surface and the lower windward surface gradually decreases.

[0023] In some embodiments, the front bumper includes a bumper body and a split plate, the split plate is detachably connected to the bumper body, and the first support column and the second support column are arranged on the split plate (204).

[0024] In some embodiments, the front bumper is provided with a first clamping column and a first positioning column, the first clamping column is clamped with the first clamping hole on the extension section, and the first positioning column is plugged with the first positioning hole on the extension section.

[0025] A vehicle according to another embodiment of the present invention comprises the wind knife or front bumper assembly described in any one of the embodiments of the present invention.

[0026] According to the vehicle of the embodiment of the present invention, since the first fixing part and the second fixing part are arranged on the extension section at intervals along the up-down direction, and the first fixing part and the second fixing part are used to connect with the vehicle body, when the wind knife is assembled to the vehicle body, the first fixing part and the second fixing part can provide auxiliary support to the extension section to reduce the shaking amplitude of the extension section during the driving of the vehicle, improve the modal performance of the wind knife, and help reduce the noise during the driving of the vehicle. In addition, since the extension section of the wind knife extends along the up-down direction, the airflow on the front side of the vehicle can be combed, thereby reducing the wind resistance of the vehicle when driving. Therefore, the wind knife of the vehicle of the embodiment of the present invention can reduce the vibration noise during the driving of the vehicle and optimize the aerodynamic performance of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of an air knife according to an embodiment of the present invention.

[0028] Figure 2 Schematic diagram of the wind knife of the embodiment of the present invention from another perspective.

[0029] Figure 3 is an exploded view of the wind knife according to an embodiment of the present invention.

[0030] Figure 4 It is a partial view of the wind knife according to an embodiment of the present invention.

[0031] Figure 5 Schematic diagram of a front bumper assembly according to an embodiment of the present invention.

[0032] Figure 6 It is a schematic diagram of a front bumper assembly (excluding the wind knife) according to an embodiment of the present invention.

[0033] Figure 7 yes Figure 6 A is an enlarged view of the middle image.

[0034] Reference numerals:

[0035] 100. Wind knife;

[0036] 101, main body section; 102, extension section; 1021, first fixing part; 10211, nut; 1022, second fixing part; 1023, third fixing part; 10231, first clamping hole; 10232, first positioning hole; 112, outer plate; 122, inner plate; 1221, matching hole; 132, frame; 103, buckle; 104, flanging section;

[0037] 200, front bumper;

[0038] 201, first support column; 2011, through hole; 211, windward portion; 2111, upper windward surface; 2112, lower windward surface; 202, second support column; 203, bumper body; 204, split plate; 205, guide channel; 206, first clamping column; 207, first positioning column; 208, bumper lower body. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] Please refer to the following Figures 1 to 7 The wind knife 100 , the front bumper assembly and the vehicle according to the embodiment of the present invention are described.

[0041] like Figures 1 to 4 As shown, the wind knife 100 of the embodiment of the present invention includes: a main section 101 and an extension section 102, wherein the extension section 102 is arranged in the left and right directions of the main section 101 (such as Figure 1 The extension section 102 is arranged on one side (in the length direction of the main section 101) and extends along the up-down direction of the main section 101, the extension section 102 includes a first fixing portion 1021 and a second fixing portion 1022 for connecting to the vehicle body, and the first fixing portion 1021 and the second fixing portion 1022 are arranged on the extension section 102 at intervals along the up-down direction.

[0042] It can be understood that the up-down, down-down, left-right, front-back, and left-right directions of the wind knife 100 are consistent with those of the vehicle.

[0043] According to the wind knife 100 of the embodiment of the present invention, since the first fixing portion 1021 and the second fixing portion 1022 are arranged on the extension section 102 at intervals along the up-down direction, and the first fixing portion 1021 and the second fixing portion 1022 are used to connect with the vehicle body, when the wind knife 100 is assembled to the vehicle body, the first fixing portion 1021 and the second fixing portion 1022 can provide auxiliary support to the extension section 102 to reduce the shaking amplitude of the extension section 102 during the driving of the vehicle, improve the modal performance of the wind knife 100, help reduce the noise during the driving of the vehicle, and improve the stability of the vehicle during driving. Since the extension section 102 of the wind knife 100 extends along the up-down direction, the airflow on the front side of the vehicle can be combed, thereby reducing the wind resistance when the vehicle is driving. Therefore, the wind knife 100 of the embodiment of the present invention can reduce the vibration noise during the driving of the vehicle and optimize the aerodynamic performance of the whole vehicle.

[0044] It should be noted that the number of the first fixing portion 1021 and the second fixing portion 1022 can be one or more.

[0045] For example, when the dimension of the extension section 102 along the up-down direction is larger, the number of the first fixing parts 1021 or the second fixing parts 1022 can be increased accordingly. When the length of the extension section 102 along the up-down direction is smaller, the number of the first fixing parts 1021 or the second fixing parts 1022 can be reduced accordingly. The present invention is not limited to this.

[0046] The extension section 102 of the present invention is provided with two fixing points, namely, the first fixing part 1021 and the second fixing part 1022. Compared with the solution of "the extension section 102 is suspended in the air", the structural strength of the extension section 102 can be enhanced, and the anti-deformation ability of the extension section 102 can be improved. When the vehicle scrapes or collides with an obstacle, the extension section 102 can effectively protect the vehicle. And when the user manually presses or pulls the extension section 102 of the wind knife 100, the deformation amplitude of the extension section 102 is small, which is conducive to improving the texture of the whole vehicle and improving the user experience.

[0047] It is understandable that if Figure 5 As shown, the main section 101 is generally located at the front side of the front bumper 200 of the vehicle body, and the extension section 102 is generally located at the front left or front right of the front bumper 200. The extension section 102 of the wind knife 100 can comb the airflow on the front side of the vehicle so that part of the airflow blows through the tires in the direction from front to rear, so as to reduce the temperature of the tires during driving, thereby improving the driving safety of the vehicle.

[0048] like Figure 5 As shown, the inner wall surface of the extension section 102 is separated from the outer wall surface of the front bumper 200 to form a guide channel 205, so that the airflow on the front side of the vehicle can pass through the guide channel 205 and be guided to the tire position of the vehicle. On the one hand, it can reduce the resistance during the driving of the vehicle, and on the other hand, it can reduce the temperature of the tire and improve the safety of vehicle driving.

[0049] Alternatively, if Figures 2 to 4 As shown, the first fixing portion 1021 is arranged on the upper side of the second fixing portion 1022, the first fixing portion 1021 is spaced apart from the upper end of the extension section 102, and the second fixing portion 1022 is spaced apart from the lower end of the extension section 102. It can be understood that there is a certain distance between the first fixing portion 1021 and the upper edge of the extension section 102, and there is a certain distance between the second fixing portion 1022 and the lower edge of the extension section 102, thereby reducing the adverse effect of the arrangement of the first fixing portion 1021 and the second fixing portion 1022 on the airflow combing. In addition, since there is a certain distance between the first fixing portion 1021 and the upper edge of the extension section 102, the extension section 102 of the wind knife 100 can form a suspended effect in the user's visual sense, thereby improving the aesthetics of the wind knife 100 after being assembled with the front bumper 200.

[0050] like Figure 4 As shown, the distance between the extension section 102 in the vertical direction is A, and the distance between the first fixing portion 1021 and the upper edge of the extension section 102 is B1, wherein 0.3≤B1 / A≤0.5. For example, B1 / A may be 0.3, 0.35, 0.4, 0.45, or 0.5.

[0051] The distance between the first fixing portion 1021 and the second fixing portion 1022 is B2, wherein 0.25≤B2 / A≤0.45. For example, B2 / A may be 0.25, 0.3, 0.35, 0.4, or 0.45.

[0052] The distance between the second fixing portion 1022 and the lower edge of the extension section 102 is B3, wherein 0.15≤B3 / A≤0.35. For example, B3 / A may be 0.15, 0.2, 0.25, 0.3, or 0.35.

[0053] The inventors of the present invention have discovered through experimental research that when B1, B2, B3 and A are designed as the above parameters respectively, the wind resistance during vehicle driving can be further reduced, and at the same time, the extended section 102 of the wind knife 100 can be ensured to have a smaller vibration amplitude, thereby greatly reducing the noise caused by the vibration of the wind knife 100 during vehicle driving, which is beneficial to improving the wind knife modal performance.

[0054] In one example, B1 / A is 0.4, B2 / A is 0.35, and B3 / A is 0.25.

[0055] Alternatively, if Figures 2 to 4 As shown, the extension section 102 is provided with a third fixing portion 1023 for connecting with the vehicle body, and the third fixing portion 1023 is spaced apart from any one of the first fixing portion 1021 and the second fixing portion 1022 along the front-to-back direction of the extension section 102. It should be noted that the front-to-back direction of the extension section 102 is consistent with the front-to-back direction of the vehicle. Figure 1 As shown, the extension section 102 is a plate-like structure, and the extension section 102 extends along the front-rear direction of the vehicle, and the thickness direction of the extension section 102 is substantially parallel to the left-right direction of the vehicle.

[0056] It can be understood that the third fixing portion 1023 can further strengthen the mounting structure of the extension section 102 to reduce the vibration amplitude of the extension section 102 during vehicle driving. On the other hand, since the third fixing portion 1023 is spaced apart from any one of the first fixing portion 1021 and the second fixing portion 1022 along the front-rear direction of the extension section 102, the first fixing portion 1021, the second fixing portion 1022 and the third fixing portion 1023 can be arranged substantially in a triangle, further improving the stability of the extension section 102 mounted on the vehicle body.

[0057] For example, Figure 3 and Figure 4 As shown, the third fixing portion 1023 includes a first clamping hole 10231, which is disposed on one side of the second fixing portion 1022 along the front-to-back direction of the extension section 102. For example, the first clamping hole 10231 is disposed on the front side of the second fixing portion 1022 along the front-to-back direction of the extension section 102.

[0058] On the one hand, the wind knife 100 is connected to the front bumper 200 of the vehicle body through the first clamping hole 10231, which can improve the convenience of disassembly and assembly of the wind knife 100, and at the same time ensure the connection strength between the wind knife 100 and the front bumper 200. On the other hand, since the first clamping hole 10231 is arranged on one side of the second fixing portion 1022 along the front-to-back direction of the extension section 102, the disturbance of the airflow caused by the clamping structure of the first clamping hole 10231 and the front bumper 200 can be reduced. In other words, when the airflow flows through the guide channel 205, since the clamping structure of the first clamping hole 10231 and the front bumper 200 is arranged on the front side of the second fixing portion 1022, the airflow blocking surface can be reduced, thereby reducing the flow resistance of the airflow.

[0059] For example, Figure 3 and Figure 4 As shown, the third fixing portion 1023 further includes a first positioning hole 10232, and the first positioning hole 10232 is provided on one side of the second fixing portion 1022 along the front-to-rear direction of the extension section 102. It can be understood that the first positioning column 207 on the front bumper 200 can be plugged into the first positioning hole 10232 to limit the installation of the wind knife 100 in the Z direction (up and down direction), thereby improving the convenience of assembling the wind knife 100.

[0060] For example, the first positioning hole 10232 is disposed at the front side of the second fixing portion 1022 along the front-to-back direction of the extension section 102. Figure 4 As shown, the first positioning hole 10232 is disposed between the second fixing portion 1022 and the first locking hole 10231 .

[0061] On the one hand, the wind knife 100 is plugged into the front bumper 200 of the vehicle body through the first positioning hole 10232, which can improve the convenience of disassembly and assembly of the wind knife 100 and ensure the connection strength between the wind knife 100 and the front bumper 200. On the other hand, since the first positioning hole 10232 is arranged on one side of the second fixing portion 1022 along the front-rear direction of the extension section 102, the disturbance to the airflow can be reduced and the flow resistance of the airflow can be reduced.

[0062] In some embodiments, Figure 3As shown, the extension section 102 includes an outer plate 112, an inner plate 122 and a frame 132, the main section 101 is connected to the outer plate 112, the inner plate 122 is arranged on the inner side of the outer plate 112, and the frame 132 is arranged between the inner plate 122 and the outer plate 112. It can be understood that the extension section 102 is a three-layer structure of the outer plate 112, the inner plate 122 and the frame 132, thereby improving the structural strength of the extension section 102, improving the anti-deformation ability of the extension section 102, and reducing the amplitude of the extension section 102 during the vehicle driving process, reducing the generation of noise.

[0063] Optionally, the outer panel 112, the inner panel 122 and the frame 132 are all non-metallic parts. For example, the outer panel 112, the inner panel 122 and the frame 132 can be plastic parts or carbon fiber parts to reduce the weight of the whole vehicle.

[0064] like Figure 3 As shown, the outer panel 112 and the frame 132 can be connected by puncture welding, and there can be multiple welding points between the outer panel 112 and the frame 132, and the multiple welding points are arranged at intervals on the frame 132. The inner panel 122 and the frame 132 can be connected by bonding to ensure the integrity of the appearance after the outer panel 112, the inner panel 122 and the frame 132 are assembled.

[0065] like Figure 3 As shown, the main body section 101 and the outer panel 112 are an integrally formed part. The structure of the main body section 101 can be designed according to the appearance of the vehicle, and the present invention does not limit the structure of the main body section 101.

[0066] For example, Figure 1 and Figure 2 As shown, a flange section 104 is provided at one end of the main section 101 away from the extension section 102. In the direction from front to rear, the flange section 104 gradually extends upward and is compatible with the front shovel or front bumper 200 of the vehicle.

[0067] Alternatively, if Figure 3 and Figure 4 As shown, at least one of the first fixing portion 1021 and the second fixing portion 1022 includes a nut 10211, the nut 10211 is provided on the frame 132, and a matching hole 1221 is provided on the inner plate 122, and the matching hole 1221 is arranged opposite to the nut 10211. It can be understood that the screw member is passed through the front bumper 200 and screwed into the nut 10211 to fix the wind knife 100. For example, the screw member can be a self-tapping screw.

[0068] Exemplarily, one of the first fixing portion 1021 and the second fixing portion 1022 is a box-type reed nut, and the other is a U-type reed nut.

[0069] Alternatively, if Figure 1and Figure 2 As shown, the wind knife 100 is provided with a plurality of buckles 103, some of which are provided on the main section 101 and arranged at intervals along the left and right directions of the main section 101, and other buckles 103 are arranged on the lower edge of the extension section 102. This can improve the reliability of the installation of the wind knife 100 and the front bumper 200, which is beneficial to reduce the number of threaded parts used, so as to facilitate the disassembly and assembly of the wind knife 100.

[0070] In other embodiments, at least one of the first fixing portion 1021 and the second fixing portion 1022 includes a pillar (not shown), one end of the pillar is connected to the extension section 102, and the other end of the pillar is connected to the vehicle body (front bumper 200). It can be understood that the pillar is provided on the inner wall surface of the extension section 102, and the pillar extends along the thickness direction of the extension section 102.

[0071] It is understandable that one end of the column is connected to the inner wall of the extension section 102, and the other end of the column is connected to the front bumper 200, so that the inner wall surface of the extension section 102 and the outer wall surface of the front bumper 200 form a guide channel 205. The wind knife 100 of the embodiment of the present invention can be easily integrated into any vehicle by designing the first fixing portion 1021 and the second fixing portion 1022 as a column structure. When the wind knife 100 is installed, it is only necessary to open a hole at the corresponding position of the front bumper 200, thereby improving the flexibility of the installation of the wind knife 100.

[0072] like Figures 5 to 7 As shown, a front bumper assembly of another embodiment of the present invention includes: a front bumper 200 and a wind knife 100, the wind knife 100 is the wind knife 100 of the present invention, the wind knife 100 is arranged on the front bumper 200, and the first fixing part 1021 and the second fixing part 1022 are both connected to the front bumper 200.

[0073] According to the front bumper assembly of the embodiment of the present invention, since the first fixing portion 1021 and the second fixing portion 1022 are arranged on the extension section 102 at intervals along the up-down direction, and the first fixing portion 1021 and the second fixing portion 1022 are used to connect with the vehicle body, when the wind knife 100 is assembled to the vehicle body, the first fixing portion 1021 and the second fixing portion 1022 can provide auxiliary support to the extension section 102 to reduce the shaking amplitude of the extension section 102 during the driving of the vehicle, improve the modal performance of the wind knife 100, and help reduce the noise during the driving of the vehicle. In addition, since the extension section 102 of the wind knife 100 extends along the up-down direction, the airflow on the front side of the vehicle can be combed, thereby reducing the wind resistance when the vehicle is driving. Therefore, the front bumper assembly of the embodiment of the present invention can reduce the vibration noise during the driving of the vehicle and optimize the aerodynamic performance of the whole vehicle.

[0074] like Figure 5As shown, the inner wall surface of the extension section 102 is spaced apart from the outer wall surface of the front bumper 200 to form a guide channel 205. Thus, the airflow at the front side of the vehicle can pass through the guide channel 205 and be guided to the tire position of the vehicle, which can reduce the resistance of the vehicle during driving, and on the other hand, can further reduce the temperature of the tire and improve the safety of vehicle driving.

[0075] Alternatively, if Figure 5 to Figure 6 As shown, the front bumper 200 is provided with a first support column 201 and a second support column 202, both of which are located in the guide channel 205, and the first support column 201 and the second support column 202 are connected to the first fixing portion 1021 and the second fixing portion 1022 in a one-to-one correspondence. It can be understood that the first support column 201 and the second support column 202 are both against the inner plate 122, so that the inner wall surface of the extension section 102 and the outer wall surface of the front bumper 200 can be separated to form a guide channel 205. Under the stop effect of the first support column 201 and the second support column 202, the extension section 102 has a stronger anti-deformation ability and a more stable structure.

[0076] like Figure 7 As shown, the first support column 201 and the second support column 202 are both provided with a through hole 2011 , and the screw member passes through the through hole 2011 and is connected to the corresponding nut 10211 .

[0077] like Figure 7 As shown, at least one of the first support column 201 and the second support column 202 includes a windward portion 211, and the windward portion 211 has an upper windward surface 2111 and a lower windward surface 2112. The upper windward surface 2111 and the lower windward surface 2112 are arranged in the up and down directions, and the upper windward surface 2111 is located on the upper side of the lower windward surface 2112. In the direction from the air outlet of the guide channel 205 to the air inlet of the guide channel 205, the distance between the upper windward surface 2111 and the lower windward surface 2112 gradually decreases.

[0078] Exemplarily, the front ends of the first support column 201 and the second support column 202 are both provided with a windward portion 211 .

[0079] It can be understood that in the direction from the air outlet of the guide channel 205 to the air inlet of the guide channel 205, the windward portion 211 gradually becomes sharper, thereby reducing the resistance of the airflow passing through the first support column 201 and the second support column 202, so as to further reduce wind resistance and increase vehicle speed.

[0080] In some embodiments, Figure 5 and Figure 6As shown, the front bumper 200 includes a bumper body 203 and a split plate 204, the split plate 204 is detachably connected to the bumper body 203, and the first support column 201 and the second support column 202 are arranged on the split plate 204. Figure 6 As shown, the split plate 204 may be an air curtain cover of the front bumper 200. Since the split plate 204 has a relatively small structure, it is convenient to form the first support column 201 and the second support column 202 on the split plate 204. Therefore, the front bumper assembly of the embodiment of the present invention can be easily processed and manufactured by designing the front bumper 200 as the above structure.

[0081] Alternatively, if Figure 7 As shown, the front bumper 200 is provided with a first clamping column 206 and a first positioning column 207, the first clamping column 206 is clamped with the first clamping hole 10231 on the extension section 102, and the first positioning column 207 is plugged with the first positioning hole 10232 on the extension section 102. This can further improve the stability of the connection between the front bumper 200 and the wind knife 100, which is conducive to improving the mode of the wind knife 100.

[0082] For example, Figure 7 As shown, the first clamping column 206 and the first positioning column 207 are arranged adjacent to the lower side of the front bumper 200. For example, the front bumper 200 further includes a bumper lower body 208, which is detachably mounted on the lower side of the bumper body 203, the first clamping column 206 and one of the first positioning columns 207 are both disposed on the bumper lower body 208, and the other first positioning column 207 is disposed on the second support column 202.

[0083] A vehicle according to another embodiment of the present invention comprises the wind knife 100 or the front bumper assembly according to the embodiment of the present invention.

[0084] The technical advantages of the vehicle according to the embodiment of the present invention are the same as the technical advantages of the wind knife 100 or the front bumper assembly of the above-mentioned embodiment, which will not be repeated here.

[0085] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A wind knife (100), characterized in that: The invention comprises a main section (101) and an extension section (102), wherein the extension section (102) is arranged on one side of the main section (101) in the left-right direction and extends along the up-down direction of the main section (101), and the extension section (102) comprises a first fixing portion (1021) and a second fixing portion (1022) for connecting to a vehicle body, and the first fixing portion (1021) and the second fixing portion (1022) are arranged on the extension section (102) at intervals along the up-down direction.

2. The wind knife (100) according to claim 1, characterized in that: The first fixing portion (1021) is arranged on the upper side of the second fixing portion (1022), the first fixing portion (1021) is spaced apart from the upper end of the extension section (102), and the second fixing portion (1022) is spaced apart from the lower end of the extension section (102).

3. The wind knife (100) according to claim 2, characterized in that: The distance between the extension section (102) along the up-down direction is A, and the distance between the first fixing portion (1021) and the upper edge of the extension section (102) is B1, wherein 0.3≤B1 / A≤0.5; and / or, the distance between the extension section (102) along the up-down direction is A, and the distance between the first fixing portion (1021) and the second fixing portion (1022) is B2, wherein 0.25≤B2 / A≤0.45; And / or, the spacing of the extension section (102) along the up-down direction is A, and the spacing between the second fixing portion (1022) and the lower edge of the extension section (102) is B3, wherein 0.15≤B3 / A≤0.

35.

4. The wind knife (100) according to claim 2, characterized in that: The extension section (102) is provided with a third fixing portion (1023) for connecting to the vehicle body, and the third fixing portion (1023) is spaced apart from any one of the first fixing portion (1021) and the second fixing portion (1022) along the front-rear direction of the extension section (102).

5. The wind knife (100) according to claim 4, characterized in that: The third fixing portion (1023) comprises a first clamping hole (10231), and the first clamping hole (10231) is arranged on one side of the second fixing portion (1022) along the front-rear direction of the extension section (102).

6. The wind knife (100) according to claim 4, characterized in that: The third fixing portion (1023) further comprises a first positioning hole (10232), and the first positioning hole (10232) is arranged on one side of the second fixing portion (1022) along the front-to-rear direction of the extension section (102).

7. The wind knife (100) according to claim 1, characterized in that: The extension section (102) comprises an outer panel (112), an inner panel (122) and a frame (132); the main section (101) is connected to the outer panel (112); the inner panel (122) is arranged on the inner side of the outer panel (112); and the frame (132) is arranged between the inner panel (122) and the outer panel (112).

8. The wind knife (100) according to claim 7, characterized in that: At least one of the first fixing portion (1021) and the second fixing portion (1022) comprises a nut (10211), wherein the nut (10211) is disposed on the frame (132), and a matching hole (1221) is disposed on the inner plate (122), wherein the matching hole (1221) is arranged opposite to the nut (10211).

9. The wind knife (100) according to claim 1, characterized in that: At least one of the first fixing portion (1021) and the second fixing portion (1022) comprises a column, one end of the column is connected to the extension section (102), and the other end of the column is used to be connected to the vehicle body.

10. The wind knife (100) according to any one of claims 1 to 9, characterized in that: The wind knife (100) is provided with a plurality of buckles (103), some of the buckles (103) are provided on the main section (101) and are arranged at intervals along the left-right direction of the main section (101), and another part of the buckles (103) are arranged at the lower edge of the extension section (102).

11. A front bumper assembly, characterized in that: include: Front bumper (200); A wind knife (100), wherein the wind knife (100) is the wind knife (100) described in any one of claims 1 to 10, wherein the wind knife (100) is arranged on the front bumper (200), and the first fixing portion (1021) and the second fixing portion (1022) are both connected to the front bumper (200).

12. The front bumper assembly according to claim 11, characterized in that: The inner wall surface of the extension section (102) is spaced apart from the outer wall surface of the front bumper (200) to form a guide channel (205).

13. The front bumper assembly according to claim 12, characterized in that: The front bumper (200) is provided with a first support column (201) and a second support column (202); the first support column (201) and the second support column (202) are both located in the air guide channel (205); and the first support column (201) and the second support column (202) are connected to the first fixing portion (1021) and the second fixing portion (1022) in a one-to-one correspondence.

14. The front bumper assembly according to claim 13, characterized in that: At least one of the first support column (201) and the second support column (202) comprises a windward portion (211), the windward portion (211) having an upper windward surface (2111) and a lower windward surface (2112), the upper windward surface (2111) and the lower windward surface (2112) being arranged along the up-down direction, and in the direction from the air outlet of the guide channel (205) to the air inlet of the guide channel (205), the distance between the upper windward surface (2111) and the lower windward surface (2112) gradually decreases.

15. The front bumper assembly according to claim 13, characterized in that: The front bumper (200) comprises a bumper body (203) and a split plate (204), wherein the split plate (204) is detachably connected to the bumper body (203), and the first support column (201) and the second support column (202) are arranged on the split plate (204).

16. The front bumper assembly according to claim 11, characterized in that: The front bumper (200) is provided with a first clamping column (206) and a first positioning column (207); the first clamping column (206) is clamped with a first clamping hole (10231) on the extension section (102); and the first positioning column (207) is plugged with a first positioning hole (10232) on the extension section (102).

17. A vehicle, characterized in that: It comprises the wind knife (100) described in any one of claims 1 to 10 or the front bumper assembly described in any one of claims 11 to 16.

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