CN211167140U

CN211167140U - A vehicle bottom spoiler and electric automobile for electric automobile

Info

Publication number: CN211167140U
Application number: CN201921183507.XU
Authority: CN
Inventors: 张成胜
Original assignee: Aiways Automobile Shanghai Co Ltd
Current assignee: Aiways Automobile Co Ltd; Aiways Automobile Shanghai Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-08-04
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a vehicle bottom spoiler and electric automobile for electric automobile, include: the spoiler body comprises a first plate body and a second plate body which are sequentially connected, wherein the first plate body is used for connecting the rear bottom of a vehicle bottom battery pack of the electric vehicle, the second plate body extends to the front of a lower swing arm of a rear suspension of the electric vehicle in an upward inclined mode towards the rear direction and partially covers the rear suspension, and the spoiler body is arranged below a rear bumper of the electric vehicle through the plane where the second plate body is located. The utility model discloses a vehicle bottom spoiler has effectively improved the vortex form of electric automobile driving in-process at battery package rear to rear bumper the place ahead region and automobile afterbody, does benefit to and reduces the windage of electric automobile driving especially high-speed driving in-process, has characteristics such as simple structure, low in preparation cost and suitability are strong.

Description

A vehicle bottom spoiler and electric automobile for electric automobile

Technical Field

The utility model belongs to the automobile field, concretely relates to a vehicle bottom spoiler reaches electric automobile including it for electric automobile.

Background

The automobile tail negative pressure will directly influence the driving resistance of automobile among the automobile driving process, and the tail negative pressure mainly receives the influence of sensitive areas such as tail gas flow separation point position and the tail vortex form of the tail, the position apart from the automobile body, especially there is great space in vehicle bottom battery package rear to rear bumper place ahead region of electric automobile, electric automobile is when driving process especially high-speed, the air current very easily gets into this great space and forms huge vortex, and then influences the tail vortex form of the tail, lead to the negative pressure increase, cause great electric automobile driving resistance.

The technical means mainly adopted in the field for solving the problem at present are as follows: the method for packaging the lower surfaces of the parts of the vehicle bottom by flat and flat bottom guard plates or locally additionally installing a guide plate on a suspension frame achieves the purposes of reducing the eddy current of the vehicle bottom and improving the air resistance. However, this design method has the following problems: on one hand, the guard plate structure parallel to the ground is easy to cause airflow below the guard plate to flow towards the direction of the ground, and the airflow velocity at the bottom of the vehicle can be increased only within a limited range; on the other hand, in the driving process of the automobile, the amplitude of the up-and-down swing of the lower swing arm of the rear suspension is large, so that the method is limited by the shape and the arrangement space of the lower swing arm of the rear suspension, and the actual space and the cost are combined to cause that parts prepared by the method cannot be additionally installed according to the design effect, so that the resistance reducing effect is limited.

The prior art also discloses a full-bottom guard plate package, and the structural design can reduce the air resistance caused by the chassis to the maximum extent, and is favorable for improving the stability of the automobile in the running process even at high speed. However, the design provides very high requirements for vehicle bottom arrangement and part type selection, so that the manufacturing cost is high, and the design is not suitable for common vehicle types, and is not beneficial to popularization and application.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned whole or partial problem, the utility model aims at providing a vehicle bottom spoiler and electric automobile for electric automobile can effectively reduce electric automobile and at the windage of the in-process of driving and overcome costly and the not enough scheduling problem in space, promotes the application scope of this vehicle bottom spoiler.

The utility model provides a vehicle bottom spoiler for electric automobile, include: the spoiler body comprises a first plate body and a second plate body which are sequentially connected, wherein the first plate body is used for connecting the rear bottom of a battery pack at the bottom of the electric automobile, the second plate body extends to the front of a lower swing arm of a rear suspension of the electric automobile in an upward inclined mode towards the rear direction, and covers the rear suspension simultaneously and partially, and the spoiler body is arranged below a rear bumper of the electric automobile and passes through the plane where the second plate body is located.

Further, the second plate body comprises an arc-shaped edge which is matched and adjacent to the front part of the lower swing arm in the rear suspension of the electric automobile, wherein the distance between the arc-shaped edge and the front part of the lower swing arm is 5-15 cm.

Further, the length of the first plate body is 15-20cm, the length of the second plate body is 25-35cm, and the included angle between the first plate body and the second plate body is 1-5 degrees.

Furthermore, the spoiler comprises a pair of flanging structures which are respectively connected with two side edges of the spoiler body, and the pair of flanging structures are respectively positioned at two sides of the vehicle bottom battery pack.

Further, the vertical distance from the top edge of the flanging structure to the plane of the spoiler body is gradually reduced along the direction from front to back, and the top edge of the flanging structure is connected with the arc-shaped edge.

Further, still including set up in on spoiler body and the flange structure and can with the vehicle bottom spoiler install in a plurality of installation departments on the vehicle bottom battery package.

Further, the installation department is for having the through-hole and towards the protruding structure of bulging of vehicle bottom battery package.

Further, the rear end of the second plate body is mounted on a positioning arm of a rear suspension of the electric vehicle.

Furthermore, the vehicle bottom spoiler is of an integrated structure and is made of plastic.

The utility model also provides an electric automobile, electric automobile includes as above arbitrary the vehicle bottom spoiler.

The utility model discloses a vehicle bottom spoiler for electric automobile can partially cover the space between vehicle bottom battery package to rear bumper, and separation car travel in-process a large amount of airflows advance if this space that is covered effectively, do benefit to and improve the vortex and the rear of a vehicle vortex form that the car travel in-process formed in this position, help reducing the windage. The problem of high preparation cost of the rear spoiler caused by covering the lower swing arm is effectively solved. The airflow passing through the vehicle bottom spoiler can be guided to the tail of the vehicle along the oblique upward direction, and the static pressure on the surface of the vehicle bottom can be reduced compared with the design of the spoiler body which is parallel to the ground or inclines downwards in the prior art, so that the negative lift force of the whole vehicle is further improved, and the stability of the electric vehicle in the running process, particularly the high-speed running process is improved. And simultaneously, the utility model discloses a vehicle bottom spoiler has simple structure, makes the convenience, characteristics such as application scope extensively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is an assembly plan view of a spoiler at the bottom of a vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an electric vehicle according to an embodiment of the present invention;

fig. 3 is an assembly side view of the underbody spoiler in the electric vehicle according to the present embodiment of the present invention;

FIG. 4 is a front view of the underbody spoiler of FIG. 1;

FIG. 5 is a side view of the underbody spoiler of FIG. 1;

fig. 6 is a sectional view of the underbody spoiler shown in fig. 4.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 6, the underbody spoiler 1 includes a spoiler body 101, the spoiler body 101 includes a first plate 111 and a second plate 112 connected in sequence, the first plate 111 is used for connecting a rear bottom of a underbody battery pack 2 of an electric vehicle, the second plate 112 extends obliquely in a rear direction to a front of a lower swing arm 3 of a rear suspension (not shown in the figure) of the electric vehicle, and partially covers the rear suspension, wherein a plane where the spoiler body 101 is disposed through the second plate 112 is located below a rear bumper 4 of the electric vehicle.

Referring to fig. 3, the utility model discloses a vehicle bottom spoiler 1 for electric automobile owing to install in electric automobile's vehicle bottom battery package 2's back bottom, can partially cover the space between vehicle bottom battery package 2 to rear bumper, has obstructed a large amount of air currents effectively and has got into in this covered space of automobile driving in-process to improved the vortex and the rear of a vehicle vortex form that electric automobile driving in-process formed in this position, played obvious resistance effect that falls. Referring to fig. 1, since the underbody spoiler 1 is located in front of the lower swing arm 3 of the rear suspension of the electric vehicle, the problem of high manufacturing cost of the rear spoiler due to the fact that the lower swing arm is covered is effectively solved. Because the second plate body 112 extends obliquely upwards towards the rear, the airflow passing through the vehicle bottom spoiler 1 can be guided to the tail of the vehicle along the oblique direction in the oblique direction, and compared with the design of the spoiler body which is parallel to the ground or inclined downwards in the prior art, the static pressure on the surface of the vehicle bottom can be reduced, so that the negative lift force of the whole vehicle is further improved, and the stability of the electric vehicle in the running process, particularly the high-speed running process is improved. Because the plane of the second plate body 112 is located below the rear bumper 4 of the electric automobile, the condition that the ducted airflow flows to the area in front of the rear bumper 4 to form a large wake vortex at the position can be avoided, and the wind resistance of the electric automobile in the running process, especially the high-speed running process, can be effectively reduced. And simultaneously, the utility model discloses a vehicle bottom spoiler 1's simple structure, manufacturing convenience, use safe and reliable.

Referring to fig. 1, the second plate 112 includes an arc-shaped edge that is matched and adjacent to the front portion of the lower swing arm 3 in the rear suspension of the electric vehicle, wherein the arc-shaped edge is spaced from the front portion of the lower swing arm 3 by 5-15 cm.

For the vehicle bottom spoiler 1, the longer the length of the vehicle bottom spoiler 1, the better the spoiler effect, but because the lower swing arm 3 of the rear suspension swings up and down and the amplitude is large in the vehicle running process, the vehicle bottom spoiler 1 can only be positioned in front of the lower swing arm 3 of the rear suspension. The larger the width of the lower swing arm 3 in the front-back direction along the outer side close to the vehicle width direction is, the larger the side line of the front part of the lower swing arm 3 is, so that the side line is approximately in a circular arc shape, and in order to obtain the maximum length of the vehicle bottom spoiler 1 as far as possible, a gap of 5-15cm is reserved between the rear edge of the second plate body 112 and the arc-shaped side matched with the front part of the lower swing arm 3, preferably 10cm, and on one hand, the installation is convenient; on the other hand forms the installation distance, touches vehicle bottom spoiler 1 and influences vehicle bottom spoiler 1's stability when avoiding swing down 3.

Referring to fig. 3, in the driving process of the automobile, the air flow passing through the underbody spoiler 1 easily causes the oscillation of the tail end position of the underbody spoiler 1, so that the dredging effect on the air flow can be influenced. Therefore, the rear end of the second plate body 112 of the underbody spoiler 1 can be arranged on other parts of the underbody through the cantilever, so that the installation stability of the underbody spoiler 1 can be improved. On the one hand, the stability of the underbody spoiler 1 is affected by the overlong cantilever; on the other hand, the arrangement space of other parts is also affected. Considering that the tail end of the spoiler 1 at the bottom of the vehicle is close to the front end of the lower swing arm 3 of the rear suspension as much as possible, the rear end of the second plate 112 can be mounted on the rear suspension through the cantilever, on one hand, the vertical distance between the rear suspension and the bottom of the battery pack 2 at the bottom of the vehicle bottom is smaller relative to other parts, and on the other hand, the length requirement of the spoiler 1 at the bottom of the vehicle can be effectively ensured.

The rear suspension generally includes a control arm, an upper swing arm, a lower swing arm 3, and a positioning arm 5 located in front of the lower swing arm 3, and in view of the fact that the positioning arm 5 is always in a stationary state, it is considered that the rear end of the second plate 112 is mounted on the positioning arm 5 of the rear suspension through a cantilever. The installation stability of the vehicle bottom spoiler 1 can be effectively guaranteed.

In this embodiment, referring to fig. 2, the vertical distance a between the bottom of the battery pack and the rear bumper and the horizontal distance b between the rear end of the battery pack and the rear bumper directly affect the specific installation position of the spoiler at the bottom of the vehicle and the size of the inclined angle θ of the second plate 112 in the backward direction.

In a preferred embodiment, when the vertical distance between the bottom of the battery pack and the rear bumper 4 is 10-15cm, and the horizontal distance between the rear end of the battery pack and the rear bumper 4 is 110-115cm, the length of the first plate body is 15-20cm, the length of the second plate body is 25-35cm, and the distance between the first plate body and the battery pack is 10cm, and the included angle between the first plate body 111 and the second plate body 112 is 1-5 °, preferably 2 °. In one embodiment, when the vertical distance between the bottom of the battery pack and the rear bumper 4 is 13cm, and the horizontal distance between the rear end of the battery pack and the rear bumper 4 is 114cm, the length of the first plate is 18cm, and the length of the second plate is 30 cm.

Referring to fig. 4 to 6, the underbody spoiler 1 for an electric vehicle according to the present embodiment further includes a pair of flange structures 102 respectively connected to two sides of the spoiler body 101, and the pair of flange structures 102 are respectively located at two sides of the underbody battery pack 2. The flange structure 102 contributes to enhancing the strength of the underbody spoiler 1 itself.

In this embodiment, the design of the flanging structure is mainly to improve the strength of the spoiler 1 at the bottom of the vehicle, and if the flanging structure 102 occupies a large space, the overall flow guiding effect is inevitably affected, so that on the basis of ensuring the strength of the spoiler 1 at the bottom of the vehicle, the vertical distance from the top edge of the flanging structure 102 to the plane where the spoiler body 101 is located is gradually reduced along the direction from front to back, and the top edge of the flanging structure 102 is connected with the arc-shaped edge.

The vehicle bottom spoiler 1 for the electric vehicle in the embodiment further comprises a plurality of mounting parts 103 which are arranged on the spoiler body 101 and the flanging structure 102 and can mount the vehicle bottom spoiler 1 on a frame of a vehicle bottom battery pack. The mounting portion 103 is a bulging structure with a through hole and protruding towards the vehicle bottom battery pack. By arranging the mounting part 103 to be a convex bulging structure matched with the groove at the bottom of the frame of the vehicle bottom battery pack 2, on one hand, the contact area between the mounting part 103 and the frame of the vehicle bottom battery pack can be enhanced, and the mounting strength of the vehicle bottom spoiler 1 on the frame of the vehicle bottom battery pack is enhanced; on the other hand avoids the design of punching on the frame of vehicle bottom battery package, owing to the recess that is located the vehicle bottom is arranged for the matrix, can adjust vehicle bottom spoiler 1 according to actual vehicle conditions during actual installation along the concrete mounted position of fore-and-aft direction on vehicle bottom battery package 2, has the characteristics that the practicality is strong.

The underbody spoiler 1 in this embodiment may be an integral structure, and the material used is a light material such as plastic or aluminum alloy. The structural design of integral type can guarantee the intensity of vehicle bottom spoiler 1 self, chooses for use light material preparation for use, does benefit to electric automobile's lightweight.

In an embodiment not shown, it relates to an electric vehicle comprising the vehicle underbody spoiler 1, and the electric vehicle can be a hatchback, sedan, SUV, MPV, van or off-road vehicle.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in interactive relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a vehicle bottom spoiler for electric automobile which characterized in that includes:

the spoiler body comprises a first plate body and a second plate body which are sequentially connected, wherein the first plate body is used for connecting the rear bottom of a battery pack at the bottom of the electric automobile, the second plate body extends to the front of a lower swing arm of a rear suspension of the electric automobile in an upward inclined mode towards the rear direction, and covers the rear suspension simultaneously and partially, and the spoiler body is arranged below a rear bumper of the electric automobile and passes through the plane where the second plate body is located.

2. The underbody spoiler of claim 1, wherein the second plate body comprises an arc-shaped edge matching and adjacent to a front portion of a lower swing arm in a rear suspension of the electric vehicle, wherein the arc-shaped edge is spaced from the front portion of the lower swing arm by 5-15 cm.

3. The underbody spoiler of claim 1, wherein the length of the first plate body is 15-20cm, the length of the second plate body is 25-35cm, and an included angle between the first plate body and the second plate body is 1-5 °.

4. The underbody spoiler of claim 2, further comprising a pair of flange structures respectively connected to both side edges of the spoiler body such that the pair of flange structures are respectively located at both sides of the underbody battery pack.

5. The underbody spoiler of claim 4, wherein a vertical distance from a top edge of the burring structure to a plane in which the spoiler body is located is gradually decreased in a forward and backward direction such that the top edge of the burring structure is connected with the arc-shaped edge.

6. The underbody spoiler of claim 4, further comprising a plurality of mounting portions disposed on the spoiler body and the flange structure and capable of mounting the underbody spoiler on the underbody battery pack.

7. The underbody spoiler of claim 6, wherein the mounting portion is a bulged structure having a through hole and protruding toward the underbody battery pack.

8. The underbody spoiler of claim 1, wherein a rear end of the second plate body is mounted on a positioning arm of a rear suspension of the electric vehicle.

9. The underbody spoiler of claim 1, wherein the underbody spoiler is of a unitary structure and is made of plastic.

10. An electric vehicle, characterized in that it comprises an underbody spoiler as claimed in any one of claims 1 to 9.