A low wind resistance front fender assembly and a vehicle body assembly having the same

Abstract

The application relates to the front bumper field, in particular to a low-wind-resistance front bumper assembly and a vehicle body assembly with the same; the low-wind-resistance front bumper assembly comprises a front bumper body, the front bumper body comprises an upper bumper body and a lower bumper body connected to the upper bumper body; the upper bumper body and the lower bumper body are designed in a split type; the front bumper body is provided with a flow guide structure for reducing wind resistance; the front bumper body disclosed by the application is designed in a split type of the upper bumper body and the lower bumper body, so that the production and processing of the front bumper body are facilitated, and the difficulty of injection molding processing of an integrated front bumper body is avoided; meanwhile, the size of the integrated front bumper body is prevented from being too large to cause shrinkage marks at corners; in addition, the flow guide structure disclosed by the application can reduce the running wind resistance of the front bumper assembly; and then the running wind resistance of the whole vehicle is reduced; so that the wind resistance of the whole vehicle can be reduced during subsequent use, the energy consumption of the whole vehicle is reduced, and the cruising range of the whole vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of front bumper systems, specifically to a low-drag front bumper assembly and a vehicle body assembly having the low-drag front bumper assembly. Background Technology

[0002] As cars become more and more common, whether traditional gasoline cars or electric cars, if the energy consumption of a vehicle is reduced, the driving range will increase accordingly. This factor also determines the owner's car usage costs and satisfaction.

[0003] Therefore, vehicle range is receiving increasing attention, and OEMs are trying their best to improve it.

[0004] Implementing energy-saving measures on the front bumper assembly can significantly improve driving range. One way to reduce energy consumption and extend driving range is by reducing wind resistance.

[0005] On the front bumper, wind resistance can be reduced by optimizing the shape or by optimizing the components.

[0006] Traditional front bumper bodies are relatively large, and one-piece injection molding can easily cause deformation.

[0007] Traditional front bumper assemblies primarily rely on the grille for ventilation, resulting in significant running resistance on both sides of the front bumper and inevitably wasting the vehicle's power.

[0008] Existing patent 201621113422.0 - for front bumper assembly of a vehicle and vehicle having therein, does not explicitly disclose the technical content for solving the above-mentioned technical problem.

[0009] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing front bumper assembly. Summary of the Invention

[0010] The purpose of this invention is to provide a low-drag front bumper assembly that is easy to manufacture.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0012] A low-drag front bumper assembly includes a front bumper body, the front bumper body including an upper bumper body and a lower bumper body connected to the upper bumper body; the upper bumper body and the lower bumper body adopt a separate design.

[0013] The front bumper body is equipped with a flow-guiding structure to reduce wind resistance.

[0014] The airflow guiding structure includes an air duct mechanism disposed on the front bumper body; the air duct mechanism includes an air duct opening disposed on the front bumper body, the air duct opening being connected to an air duct curtain; the air duct curtain includes an air curtain body, the air curtain body being provided with an airflow channel.

[0015] The air curtain in the air duct is connected to the front bumper body via an air curtain bracket.

[0016] The lower bumper body is provided with a ventilated grille; the airflow guiding structure also includes an active air intake grille assembly; the active air intake grille assembly is arranged opposite to the ventilated grille; the active air intake grille assembly is connected to the vehicle; the active air intake grille assembly includes an active air intake grille mechanism and an airflow guiding shell; the active air intake grille mechanism is also connected to the periphery of the ventilated grille through the airflow guiding shell.

[0017] The flow guide housing includes a housing body, and the housing body is provided with plug-in pieces around its periphery. The flow guide housing is connected to the periphery of the ventilation grille through the plug-in pieces.

[0018] The flow guiding structure also includes a flow-disrupting component, which includes two flow-disrupting mechanisms spaced apart on both sides of the front bumper body; each flow-disrupting mechanism includes a flow-disrupting plate, which includes an outer flow-disrupting plate and an inner flow-disrupting plate; one end of the flow-disrupting plate is connected to the lower bumper body, and the other end extends freely; the inner flow-disrupting plate is connected to the free section of the outer flow-disrupting plate; the flow-disrupting plate is spaced apart from the outer surface of the front bumper body at the free end of the outer flow-disrupting plate.

[0019] The outer spoiler plate is provided with an embedded groove, and the inner spoiler plate is installed in the embedded groove of the outer spoiler plate.

[0020] The airflow guiding structure also includes a wind-blocking mechanism; the wind-blocking mechanism is connected to the front guard body through a lower guard plate; the wind-blocking mechanism includes a wind-blocking box; the wind-blocking box is provided with a guiding slope.

[0021] The windbreak box is made of soft material.

[0022] A vehicle body assembly, including the low-drag front bumper assembly.

[0023] The advantages of this invention are:

[0024] This invention discloses a low-drag front bumper assembly and a vehicle body assembly having the low-drag front bumper assembly.

[0025] The front bumper body disclosed in this invention adopts a separate design of upper and lower bumper bodies, which facilitates the production and processing of the front bumper body and avoids the difficulty of injection molding of a one-piece front bumper body; at the same time, it avoids the problem that a one-piece front bumper body with an excessively large size is prone to shrinkage marks at the corners.

[0026] In addition, the airflow guiding structure disclosed in this invention can reduce the operating wind resistance of the front bumper assembly, thereby reducing the overall vehicle operating wind resistance. As a result, in subsequent use, the overall vehicle wind resistance can be reduced, thereby reducing the overall vehicle energy consumption and increasing the overall vehicle range. Attached Figure Description

[0027] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is a partial enlarged view of the air duct opening of the upper body in this invention.

[0030] Figure 3 This is a schematic diagram of the active air intake grille mechanism in this invention.

[0031] Figure 4 This is a schematic diagram of the turbulence-disrupting mechanism in this invention.

[0032] Figure 5 This is a schematic diagram of the windbreak box in this invention.

[0033] Figure 6 This is a first-view structural schematic diagram of the air duct mechanism in this invention.

[0034] Figure 7 This is a first-view structural schematic diagram of the air duct mechanism in this invention.

[0035] Figure 8 This is a schematic diagram of the structure when the turbulence mechanism is connected to the front guard body in this invention.

[0036] Figure 9 This is a first-view structural diagram of the windbreak box connected to the lower guard plate in this invention.

[0037] Figure 10 This is a second-view structural schematic diagram of the windbreak box connected to the lower guard plate in this invention.

[0038] Figure 11 This is a schematic diagram of the active air intake grille assembly in this invention.

[0039] Figure 12 This is a schematic diagram of the structure of the active air intake grille assembly connected to the front bumper body in this invention.

[0040] The markings in the above figures are all:

[0041] 1. Front bumper body; 11. Upper bumper body; 12. Lower bumper body; 2. Air duct mechanism; 3. Blow-off mechanism; 4. Wind baffle box; 5. Lower guard plate; 6. Active air intake grille mechanism. Detailed Implementation

[0042] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0043] A low-drag front bumper assembly includes a front bumper body 1, which includes an upper bumper body 11 and a lower bumper body 12 connected to the upper bumper body 11. The upper bumper body 11 and the lower bumper body 12 are designed as separate units. The front bumper body 1 is provided with a flow guiding structure to reduce wind resistance. The front bumper body 1 disclosed in this invention, through the separate design of the upper bumper body 11 and the lower bumper body 12, facilitates the production and processing of the front bumper body 1 and avoids the difficulty of injection molding of a one-piece front bumper body 1. At the same time, it avoids the possibility of shrinkage marks at the corners due to the large size of the one-piece front bumper body 1.

[0044] In addition, the airflow guiding structure disclosed in this invention can reduce the operating wind resistance of the front bumper assembly, thereby reducing the overall vehicle operating wind resistance. As a result, in subsequent use, the overall vehicle wind resistance can be reduced, thereby reducing the overall vehicle energy consumption and increasing the overall vehicle range.

[0045] Specifically, the low-drag front bumper assembly disclosed in this invention mainly includes a front bumper body 1, which is the main structure of the front bumper assembly. In this invention, the front bumper body 1 includes an upper bumper body 11 and a lower bumper body 12 connected to the upper bumper body 11. The upper bumper body 11 and the lower bumper body 12 form the main structure of the front bumper body 1. In this invention, the upper bumper body 11 and the lower bumper body 12 are designed separately. This arrangement facilitates the separate production of the upper bumper body 11 and the lower bumper body 12, which helps to ensure the production efficiency of the front bumper body 1. In addition, the separate design of the upper bumper body 11 and the lower bumper body 12 in this invention allows for the separate injection molding of each component, which helps to improve the production efficiency of the upper bumper body 11 and the lower bumper body 12. Furthermore, the front bumper body 1 of this invention is equivalent to having a flow guiding structure on it for reducing wind resistance. The flow guiding structure mainly guides and directs the airflow in front of or through the front bumper assembly, thereby reducing the running resistance of the front bumper and ultimately reducing the running resistance of the entire vehicle using the front bumper assembly.

[0046] There are various types of flow guiding structures, and the specific type can be selected according to actual needs.

[0047] Furthermore, the airflow guiding structure in this invention includes a duct mechanism 2 disposed on the front bumper body 1; the duct mechanism 2 includes a duct opening 224 disposed on the front bumper body 1, the duct opening 224 being connected to a duct air curtain; the duct air curtain includes an air curtain body 221, the air curtain body 221 being provided with an airflow channel; in this invention, the duct mechanism 2 is essentially a channel structure for guiding airflow; the duct opening 224 disclosed in this invention is mainly a through-hole structure disposed on the front bumper body 1, with the duct air curtain connected to the duct opening 224, facilitating subsequent airflow through the duct opening 224. 4. Air enters the air curtain body 221; In this invention, the setting of the air duct opening 224 facilitates the passage of air from the front end of the front bumper body 1, which can reduce the wind resistance of the front bumper to a certain extent, thereby reducing the resistance of the whole vehicle operation; At the same time, in this invention, the air duct opening 224 is connected to the air duct air curtain; the air duct air curtain includes the air curtain body 221, and the air curtain body 221 is provided with an airflow channel; the air duct air curtain is an airflow guiding device, which facilitates the control of the airflow direction, and then in subsequent use, it can control the airflow at the front of the car to quickly pass through the vehicle body and be discharged outside the vehicle body as needed, thereby reducing wind resistance.

[0048] Specifically, in this invention, the air duct curtain is obliquely distributed; the air duct curtain is arranged facing the side of the vehicle tire; in order to achieve the above operation, a through-hole groove is provided at the corresponding position on the outer wheel cover of the tire, and the through-hole groove is arranged opposite to the outlet end of the air duct curtain. Based on this setting, the airflow can be directly discharged to the wheel cover area, reducing the airflow in the front bumper area entering the front compartment and increasing the vehicle's running resistance. At the same time, the airflow groove disclosed in this invention faces the tire, which also plays a role in descaling and cooling, reducing debris on the tire and increasing the airflow velocity around the tire, which to a certain extent increases the cooling speed of the brake assembly connected to the tire.

[0049] In addition, in this invention, the front protective body 1 includes a protective body and a lower protective body 12. The front protective body 1 is designed as a two-section structure. This design facilitates the segmented injection molding of the front protective body 1, reduces the mold size to a certain extent, and reduces or avoids the problem of injection deformation or wrinkles that are easy to occur when large parts are injection molded. At the same time, the lower protective body 12 on the upper protective body 11 is connected by an overlapping butt joint, which ensures the stability of the connection between the lower protective body 12 on the upper protective body 11.

[0050] In actual production and installation, the front protection assembly disclosed in this invention is required to mainly include an upper protection body 11 and a lower protection body 12, with the lower protection body 12 overlapping the upper protection body 11; based on this configuration, the connection between the lower protection body 12 on the upper protection body 11 is facilitated.

[0051] Furthermore, the air curtain in this invention includes an air curtain body 221; the air curtain body 221 includes an inner air curtain panel 222 and an outer air curtain panel 223, the inner air curtain panel 222 and the outer air curtain panel 223 are arranged opposite to each other, the air curtain body 221 has openings at both ends and is hollow inside; the main body is a box structure; this arrangement facilitates the placement of the air curtain body 221 on the inner wall of the front bumper body 1. At the same time, in this invention, the air curtain is connected to the front bumper body 1 through an air curtain bracket 21; this facilitates the installation of the air curtain on the front bumper body 1. In addition, in this invention, besides having a basic connecting function, the air curtain bracket 21 can also act as a reinforcing member, which can increase the strength of the front bumper body 1 to a certain extent.

[0052] In this invention, the inner air curtain panel 222 and the outer air curtain panel 223 are snapped together, and a sealing strip is provided at the connection between the inner air curtain panel 222 and the outer air curtain panel 223 to ensure the sealing of the connection between the inner air curtain panel 222 and the outer air curtain panel 223.

[0053] In addition, in this invention, the inner panel 222 of the air curtain is connected to the front bumper body 1 by screws.

[0054] During assembly, first install the air curtain bracket 21 on the front bumper body, and then snap the air curtain body onto the air curtain bracket 21 after the air curtain bracket 21 is installed.

[0055] When connecting the air curtain body to the air curtain bracket 21, the end of the air curtain inner panel presses against the air curtain bracket 21, and the side is connected to the front bumper body by screws. After the air curtain inner panel is installed, the air curtain outer panel is fixed to the air curtain inner panel, thus smoothly assembling the air curtain body.

[0056] In addition, in this invention, the air curtain bracket 21 is attached to the inside of the front body and is located behind the air duct opening. The air curtain bracket 21 has a protrusion behind the air duct opening. In subsequent use, the air curtain body is sleeved on the protrusion on the air curtain bracket 21 and connected to the air curtain bracket 21. The connection method can be snap-fit ​​or screw-fit, which can be selected according to the needs.

[0057] Based on the above design, the air curtain body can be sleeved on the protrusion on the air curtain bracket 21, which can limit the position of the air curtain body by the air curtain bracket 21 and prevent the air curtain body from swinging.

[0058] Furthermore, the lower bumper body 12 described in this invention is provided with a ventilating grille 13; the ventilating grille 13 facilitates airflow through the front bumper body 1 and facilitates the entry of subsequent airflow; in addition, the airflow guiding structure described in this invention also includes an active air intake grille assembly; the setting of the active air intake grille assembly can control the air intake of the ventilating grille 13, and facilitates the control of the air intake operation of the front bumper body 1 as needed.

[0059] In this invention, the active air intake grille assembly is arranged opposite to the ventilated grille 13; the active air intake grille assembly is connected to the vehicle; specifically, the active air intake grille assembly is connected to the front end of the vehicle body; the active air intake grille assembly includes an active air intake grille mechanism and a guide housing; the active air intake grille mechanism is also connected to the periphery of the ventilated grille 13 through the guide housing; the active air intake grille mechanism acts as a switch, facilitating control of whether the airflow entering the ventilated grille 13 enters the front compartment and other areas; in addition, the guide housing acts as a connector and a shroud; it facilitates the formation of a box structure with the active air intake grille mechanism, facilitating the control of the air intake operation of the front bumper body 1 during subsequent use.

[0060] In this invention, the active air intake grille mechanism mainly includes a main frame, on which air vents are provided, and inside the air vents are rotating blades.

[0061] Furthermore, the airflow guide housing in this invention includes a housing body 61, with insertion pieces 62 arranged around the periphery of the housing body 61. In this invention, the housing body 61 is a rectangular housing structure. In subsequent arrangements, the insertion piece 62 is located at the end of the housing body 61 furthest from the active air intake grille mechanism; in other words, the insertion piece 62 is arranged around the periphery of the housing body 61. The insertion piece 62 is made of rubber material. Subsequently, the insertion piece 62 is inserted into the connection between the upper protective body 11 and the lower protective body 12, and the connection between the lower protective body 12 and the lower guard plate 5. The connection point; and the plug-in piece 62 is arranged around the ventilation grille 13, so that when the front bumper body 1 takes in air, it can only enter the front compartment through the ventilation grille 13 and the active air intake grille mechanism; when air intake is not required, the blades in the active air intake grille mechanism rotate, so that the active air intake grille mechanism cannot perform air intake operation. Based on the above design, the air intake operation of the front bumper body 1 can be well controlled as needed during subsequent use. When air intake is not required, the active air intake grille mechanism is closed to reduce the airflow entering the front compartment area, thereby reducing the overall vehicle wind resistance.

[0062] In addition, in this invention, the air guide housing is connected to the periphery of the air vent grille 13 via a plug-in piece 62; this arrangement makes the active air intake grille mechanism and the air guide housing form an inner cavity structure, which can ensure normal air intake of the front bumper while blocking airflow when air intake is not needed.

[0063] Furthermore, the airflow guiding structure described in this invention also includes a turbulence component, which is mainly arranged on both sides of the front bumper. Its main function is to guide the airflow passing through both sides of the front bumper, avoid the formation of vortices on both sides of the front bumper, and thus reduce the impact of turbulent airflow on the operation of the entire vehicle.

[0064] Specifically, the turbulence assembly in this invention includes two turbulence mechanisms 3 spaced apart on both sides of the front bumper body 1; each of the turbulence mechanisms 3 is arranged on one side of the front bumper body 1.

[0065] Each of the aforementioned turbulence mechanisms 3 includes a turbulence plate, which is a plate structure added to the front bumper body 1 to control the airflow flowing through the side of the front bumper body 1 and reduce the turbulence of the airflow on the side of the front bumper.

[0066] The baffle plate in this invention includes a baffle outer plate 31 and a baffle inner plate 32. The basic function of the baffle outer plate 31 and the baffle inner plate 32 is to ensure the strength of the baffle plate. In addition, it also facilitates the production and use of the baffle plate. When the baffle outer plate 31 and the baffle inner wall are integrally injection molded, there are difficulties in demolding or injection molding. By manufacturing the baffle outer plate 31 and the baffle inner plate 32 separately, the manufacturing difficulty of the baffle plate can be reduced.

[0067] In this invention, one end of the spoiler plate is connected to the lower bumper body 12, and the other end extends freely; the inner spoiler plate 32 is connected to the free section of the outer spoiler plate; the spoiler plate is located at the free end of the outer spoiler plate 31 and is spaced apart from the outer side of the front bumper body 1; based on this arrangement, the connection of the spoiler plate between the front bumper bodies 1 is facilitated, and the spoiler plate and the front bumper body 1 are spaced apart with a gap between them, which facilitates the subsequent guidance and control of the airflow flowing through the side of the front bumper body 1, and avoids the turbulent flow of this part of the airflow in the front bumper area.

[0068] In this invention, the spoiler body can be connected to the front bumper body 1 by clips and screws.

[0069] In addition, the outer spoiler plate 31 of the present invention is provided with an embedded groove, and the inner spoiler plate 32 is installed in the embedded groove of the outer spoiler plate 31; the embedded groove facilitates the installation of the inner spoiler plate 32 on the outer spoiler plate 31; the inner spoiler plate 32 and the outer spoiler plate 31 can be glued or fixed with screws.

[0070] In addition, in this invention, the inner surface of the turbulence inner plate is a plane.

[0071] Furthermore, the airflow guiding structure in this invention also includes a wind-blocking mechanism; the wind-blocking mechanism is connected to the front bumper body 1 via the lower guard plate 5; the wind-blocking mechanism includes a wind-blocking box 4; the wind-blocking box 4 is provided with a guiding slope 41; the setting of the wind-blocking box 4 in this invention can reduce the height of the lower guard plate 5 from the ground to a certain extent, thereby playing a good guiding role and reducing the overall vehicle running resistance; in addition, in this invention, the wind-blocking box 4 is a hollow box structure, the wind-blocking box 4 is connected to the lower guard plate 5 by screws, and a wind-blocking box 4 is provided on each of the opposite sides of the lower guard plate 5; in addition, in this invention, the setting of the guiding slope 41 is generally such that the height of the end closer to the front of the vehicle from the horizontal plane is greater than the height of the end farther from the front of the vehicle from the horizontal plane, so that the wind-blocking box 4 is in a reverse slope state after installation. When the airflow passes through the wind-blocking box 4, it is first guided by the slope to the lower part of the wind-blocking box 4, and then passes through the lower part and blows onto the tires, which can effectively improve the turbulent state of the airflow passing through the tires.

[0072] Furthermore, the wind deflector box 4 described in this invention is made of a soft material; based on this design, the wind deflector box 4 has good deformation capability, ensuring the passability of the entire vehicle and avoiding any impact on the passability of the entire vehicle due to the design of the wind deflector box 4.

[0073] A vehicle body assembly, including the low-drag front bumper assembly.

[0074] specific:

[0075] This invention discloses a low-drag front bumper assembly, characterized in that it includes a front bumper body 1, the front bumper body 1 including an upper bumper body 11 and a lower bumper body 12 connected to the upper bumper body 11; the upper bumper body 11 and the lower bumper body 12 adopt a split design; the front bumper body 1 is provided with a flow guiding structure for reducing wind resistance.

[0076] The airflow guiding structure disclosed in this invention can reduce the wind resistance of the front bumper assembly, so that vehicles using the front bumper assembly have lower operating wind resistance.

[0077] In addition, the front bumper assembly disclosed in this invention can reduce vehicle energy consumption by reducing wind resistance; it is particularly suitable for use in electric vehicles.

[0078] In this invention, an air duct mechanism 2 is provided on each of the opposite sides of the upper body 11 in the front bumper body 1. The air duct mechanism 2 includes an air duct opening 224 provided on the front bumper body 1, and the air duct opening 224 is connected to an air duct curtain. The air duct curtain includes an air curtain body 221, and the air curtain body 221 is provided with an airflow channel. A sealing strip is provided at the connection between the inner air curtain plate 222 and the outer air curtain plate 223 to ensure the sealing of the connection between the inner air curtain plate 222 and the outer air curtain plate 223.

[0079] In this invention, the air curtain includes an air curtain body 221; the air curtain body 221 includes an inner air curtain panel 222 and an outer air curtain panel 223, the inner air curtain panel 222 and the outer air curtain panel 223 are arranged opposite to each other, and in this invention, both the inner air curtain panel 222 and the outer air curtain panel 223 have a U-shaped structure. This arrangement gives the air curtain body a notch, which can be used to avoid structures such as radar.

[0080] Meanwhile, the air curtain body 221 consists of air ducts with openings at both ends. The air curtain is essentially composed of two plates, inner and outer, which form a tubular structure after assembly. Due to the need to avoid structures such as radar, the front end of this tubular structure is an air inlet, and the rear end is divided into two air outlets. This air duct runs through the front and rear. The airflow enters from the air inlet and is blown out from the two air outlets at the rear, indirectly reducing the overall frontal area of ​​the front bumper.

[0081] In addition, the lower body 12 of this invention is provided with a ventilation grille 13. The ventilation grille 13 is essentially an open structure. While it is necessary to dissipate heat for the internal structure, it is also necessary to reduce the airflow entering the front compartment. Therefore, an active air intake grille assembly is used at the rear of this open structure. According to the vehicle's operating conditions and in conjunction with the control logic, the ventilation grille 13 partially or fully opens the blades in the active air intake grille assembly when heat dissipation is needed, so as to play a heat dissipation role. When heat dissipation is not needed, the blades in the active air intake grille assembly are closed, which greatly reduces the airflow entering the front compartment, reduces the airflow turbulence in the front compartment, and can reduce wind resistance.

[0082] In addition, the airflow guiding structure described in this invention also includes a turbulence component, which includes two turbulence mechanisms 3 spaced apart on both sides of the front bumper body 1; each of the turbulence mechanisms 3 includes a turbulence plate; the lower sides of the front bumper body 1 are equipped with turbulence plates. Without these turbulence plates, when the airflow passes through the lower sides of the turbulence plates, the airflow separates, causing a turbulent state and increasing wind resistance.

[0083] The spoiler disclosed in this invention mainly includes an inner spoiler plate 32 and an outer spoiler plate 31. The inner spoiler plate 32 is embedded in the outer spoiler plate 31. In addition, the spoiler plate is connected to the lower edge of the front bumper body 1 through the outer spoiler plate 31. Furthermore, in this invention, the tail of the spoiler plate is in an upright state, and the tail of the spoiler plate and the outer side of the front bumper body 1 are arranged parallel to each other. This makes a U-shaped cavity formed between the spoiler plate and the front bumper body 1, and the airflow can pass through the U-shaped cavity. After the airflow passes through, the separation phenomenon is reduced, which can improve the turbulent state of the airflow on both sides of the front bumper body 1.

[0084] A lower guard plate 5 is provided at the lower end of the front bumper body 1. Wind choke boxes 4 are added on both sides of the lower guard plate 5. The wind choke box 4 is triangular and is in a reverse slope state after installation. When the airflow passes through the wind choke box 4, it is first guided by the slope to the lower part of the wind choke box 4, and then blown onto the tire from the bottom. This can effectively improve the turbulent airflow state passing through the tire.

[0085] The front bumper assembly disclosed in this invention can reduce the vehicle's wind resistance by optimizing the structure of the parts, thereby reducing the vehicle's energy consumption and increasing the vehicle's driving range.

[0086] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A low-drag front bumper assembly, characterized in that, The system includes a front protection body, which includes an upper protection body and a lower protection body connected to the upper protection body; the upper protection body and the lower protection body adopt a separate design. The front bumper body is equipped with a flow guiding structure to reduce wind resistance; The airflow guiding structure includes an air duct mechanism disposed on the front bumper body; the air duct mechanism includes an air duct opening disposed on the front bumper body, the air duct opening being connected to an air duct curtain; the air duct curtain includes an air curtain body, the air curtain body being provided with an airflow channel. The air curtain in the air duct is connected to the front bumper body via an air curtain bracket; in addition to its connecting function, the air curtain bracket can also be used to increase the strength of the front bumper body. The air curtain body includes an inner air curtain panel and an outer air curtain panel. The inner air curtain panel and the outer air curtain panel are arranged opposite to each other. During assembly, the air curtain bracket is first installed on the front bumper body. After the air curtain bracket is installed, the air curtain body is then snapped onto the air curtain bracket. When connecting the air curtain body to the air curtain bracket, the end of the air curtain inner panel presses against the air curtain bracket, and the side is connected to the front bumper body by screws. After the air curtain inner panel is installed, the air curtain outer panel is then fixed to the air curtain inner panel. The air curtain bracket fits inside the front body and is located behind the air duct opening. The air curtain bracket has a protrusion behind the air duct opening. In subsequent use, the air curtain body is fitted onto the protrusion on the air curtain bracket and connected to the air curtain bracket. The airflow guiding structure also includes a wind-blocking mechanism; the wind-blocking mechanism is connected to the front guard body via a lower guard plate; the wind-blocking mechanism includes a wind-blocking box; the wind-blocking box is provided with a flow-guiding inclined surface; The windbreak box is a hollow box structure. The windbreak box is made of soft material; The height of the guide slope near the front of the vehicle from the horizontal plane is greater than the height of the slope away from the front of the vehicle from the horizontal plane, so that the wind deflector box is installed in a reverse slope state. When the airflow passes through the wind choke box, it is first guided by the ramp to the lower part of the wind choke box, and then blown onto the tire from the lower part.

2. The low-drag front bumper assembly according to claim 1, characterized in that, The lower bumper body is provided with a ventilated grille; the airflow guiding structure also includes an active air intake grille assembly; the active air intake grille assembly is arranged opposite to the ventilated grille; the active air intake grille assembly is connected to the vehicle. The active air intake grille assembly includes an active air intake grille mechanism and a flow guide housing; the active air intake grille mechanism is also connected to the periphery of the air vent grille via the flow guide housing.

3. A low-drag front bumper assembly according to claim 2, characterized in that, The flow guide housing includes a housing body, and the housing body is provided with plug-in pieces around its periphery. The flow guide housing is connected to the periphery of the ventilation grille through the plug-in pieces.

4. A low-drag front bumper assembly according to claim 1, characterized in that, The flow guiding structure also includes a flow-disrupting component, which includes two flow-disrupting mechanisms spaced apart on both sides of the front bumper body; each flow-disrupting mechanism includes a flow-disrupting plate, which includes an outer flow-disrupting plate and an inner flow-disrupting plate; one end of the flow-disrupting plate is connected to the lower bumper body, and the other end extends freely; the inner flow-disrupting plate is connected to the free section of the outer flow-disrupting plate; the flow-disrupting plate is spaced apart from the outer surface of the front bumper body at the free end of the outer flow-disrupting plate.

5. A low-drag front bumper assembly according to claim 4, characterized in that, The outer spoiler plate is provided with an embedded groove, and the inner spoiler plate is installed in the embedded groove of the outer spoiler plate.

6. A vehicle body assembly, characterized in that, Includes the low-drag front bumper assembly as described in any one of claims 1-5.

Images