CN214356310U

CN214356310U - A water conservancy diversion side skirt board for van

Info

Publication number: CN214356310U
Application number: CN202120008187.5U
Authority: CN
Inventors: 孙博; 王增养; 秦向飞
Original assignee: Beijing Foton Cummins Engine Co Ltd
Current assignee: Beijing Foton Cummins Engine Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-10-08
Anticipated expiration: 2031-01-04

Abstract

The utility model belongs to the technical field of auto-parts, in particular to a water conservancy diversion side skirt board for van. The utility model discloses a water conservancy diversion side skirt board for van, include: the side skirtboard body is arranged on the side face of the frame at the bottom of the container, and at least one flow guide part extending along the length direction of the side skirtboard body is arranged on the side skirtboard body. The utility model discloses a through setting up the water conservancy diversion spare on the side skirt board body of water conservancy diversion side skirt board for the reason is in the same direction as and cuts the air current, makes the air current flow through the lower part on packing box and chassis more smoothly, causes energy loss in order to avoid producing great vortex, and the crosswind stability of reinforcing vehicle travel in-process reduces whole car oil consumption, thereby solves the too big technical problem with the crosswind poor stability of windage of boxcar packing box and chassis side.

Description

A water conservancy diversion side skirt board for van

Technical Field

The utility model belongs to the technical field of auto-parts, in particular to a water conservancy diversion side skirt board for van.

Background

When the automobile runs, the air resistance becomes the running resistance which is mainly needed to be overcome by the engine along with the increase of the speed. When the vehicle speed is lower than 90km/h, the main resistance of the vehicle is mechanical resistance, including friction inside the engine, friction between the tires and the ground, and the like; and when the vehicle speed exceeds 90km/h, the air resistance becomes the first resistance to be overcome by the vehicle. In practice, the mechanical resistance can be considered as a constant whose magnitude does not vary with the vehicle speed, while the air resistance is a variable that is proportional to the vehicle speed, the air resistance being greater the faster the vehicle speed.

The boxcar can cause airflow separation and disturbance of airflow flowing from the front of the van at the lower part of the container and at the chassis due to the absence of the side skirt boards, so that energy loss is increased, the wind resistance of the whole van is increased, more power is consumed to overcome the increase of the wind resistance when the van runs, the oil consumption of the whole van is increased, and meanwhile, the running stability is reduced due to uneven stress. Therefore, how to reduce the wind resistance when the whole vehicle runs and reduce the air flow separation and disturbance is the key to reduce the oil consumption of the whole vehicle and improve the lateral stability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water conservancy diversion side skirt board for van for solve van's packing box and chassis side because do not shelter from and the too big and the poor technical problem of crosswind stability of windage that produces.

The utility model discloses a water conservancy diversion side skirt board for van, include: the side skirtboard body is arranged on the side face of the frame at the bottom of the container, and at least one flow guide part extending along the length direction of the side skirtboard body is arranged on the side skirtboard body.

In one embodiment, at least two of the flow guiding elements are arranged on the side skirt body, and the flow guiding elements are arranged at equal intervals in the width direction of the side skirt body.

In one embodiment, the distance between two adjacent flow guide elements is 100mm to 120 mm.

In one embodiment, the flow guide has a length of 3000mm to 3500mm and a width of 30mm to 35 mm.

In one embodiment, the flow guide member is a flow guide groove, and the flow guide groove penetrates through the side skirt body along the thickness direction of the side skirt body.

In one embodiment, the thickness of the flow guide is 10mm to 15 mm.

In one embodiment, the front end of the side skirt body is provided in an arc shape.

In one embodiment, the upper part of the side skirt body is provided with at least two mounting holes for penetrating fasteners, and the side skirt body is detachably connected with the side surface of the frame through at least two fasteners.

In one embodiment, a lower portion of the rear end of the side skirt body is provided with a chamfer.

In one embodiment, the side skirt body is made of a plastics material.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a through setting up water conservancy diversion spare on the side skirt board body for the reason is in the same direction as and cuts the air current, makes the air current flow more smoothly through the lower part on packing box and chassis, causes energy loss in order to avoid producing great vortex, strengthens the crosswind stability of vehicle driving in-process, reduces whole car oil consumption, thereby solves the too big technical problem with crosswind poor stability of windage of boxcar packing box and chassis side.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.

Fig. 1 is a schematic view of an application structure of a diversion side skirt board of the present invention on a whole vehicle;

fig. 2 is a schematic structural view of the diversion side skirt board and the cargo box of the present invention;

fig. 3 is a schematic structural view of the flow guiding side skirt board of the present invention;

FIG. 4 is a cross-sectional pressure distribution result diagram (left side view) of the whole vehicle of the present invention;

fig. 5 is a result diagram of the analysis of the cross-section flow line in the whole vehicle of the present invention.

Reference numerals:

1-side apron board body; 2-a flow guide part; 3-a cargo box; 4-a frame; 5-mounting holes; 6-bolt.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The utility model provides a water conservancy diversion side skirt board for van, as shown in fig. 1-3, include: the side skirting board comprises a side skirting board body 1, wherein the side skirting board body 1 is arranged on the side surface of a frame 4 at the bottom of a container 3, and at least one flow guide part 2 extending along the length direction of the side skirting board body 1 is arranged on the side skirting board body 1.

The flow guide piece is a flow guide groove which is communicated along the thickness direction of the side apron board body 1, or a raised flow guide strip which is arranged on the side surface of the side apron board body.

It should be noted that, two sides of the frame 4 may be respectively and symmetrically provided with a diversion side skirt board.

The utility model discloses a set up water conservancy diversion spare 2 on the side skirt board body 1, can be used to reason in the same direction as and cut the air current, make the air current flow through the lower part on packing box 3 and chassis more smoothly to avoid producing great vortex and cause energy loss, strengthen the crosswind stability of vehicle driving in-process, reduce whole car oil consumption, thereby solve the windage of boxcar packing box 3 and chassis side too big and crosswind poor stability's technical problem.

In addition, the length of the upper edge of the side skirt body 1 is the same as the length of the cargo box 3.

In one embodiment, the front end of the side skirt body 1 is provided in an arc shape to guide the airflow from the front of the vehicle, thereby facilitating reduction of wind resistance in the front of the vehicle.

In one embodiment, at least two flow guiding elements 2 are arranged on the side skirt body 1, and the flow guiding elements 2 are arranged at equal intervals in the width direction of the side skirt body 1.

Specifically, the distance between two adjacent deflectors 2 is 100mm to 120mm, preferably 110mm, so as to optimize the effect of reducing the wind resistance.

Further specifically, the number of the flow guide members 2 is set to 2 to 5, preferably 3, as shown in fig. 3.

In one embodiment, the flow guiding element 2 is a flow guiding groove, and the flow guiding groove 2 penetrates through the side skirt body 1 along the thickness direction thereof to avoid air flow disturbance caused by thickness gradient.

In particular, the thickness of the flow guide 2 is 10mm to 15 mm.

In one embodiment, the upper portion of the side skirt body 1 is provided with at least two mounting holes 5, the mounting holes 5 are used for penetrating fasteners, and the side skirt body 1 is detachably connected with the side surface of the frame 4 through at least two fasteners. The side skirt board body 1 is fixed on the side surface of the frame 4 through a fastener, and is convenient to detach.

Specifically, the number of fasteners is 7 to 9, preferably 8.

More specifically, the fastener is a bolt 6. In addition, the frame 4 is also provided with a plurality of corresponding threaded holes for matching with the bolts 6 in corresponding positions.

In one embodiment, the lower part of the rear end of the side skirt body is provided with a chamfer to remove sharp parts of the side skirt body 1, improving its safety of use.

In one embodiment the side skirt body 1 is made of a plastic material. Preferably, the plastic material is a high-strength composite plastic such as PPN, PPC, PPU, or the like. The high-strength composite plastic has light weight and high strength. And the flow guide part 2 can also be made of the plastic material.

The utility model discloses a water conservancy diversion side skirt board has combined CFD analytical method when the design to when reducing the design, reduce time cost, and increase the reliability of design.

Fig. 4 is a cloud chart of surface pressure distribution of the cargo box 3 and the side skirt panels of the whole vehicle, which is obtained by establishing a correlation analysis model through ANSYS FLUENT software and calculating by setting a physical model, boundary conditions and the like. The digital-analog model comprises key parts of the whole vehicle, such as a cab, a container 3, a chassis, tires, a power assembly and the like, wherein the material property of the parts is a rigid wall boundary, and the cooling module is set to be a porous medium. And performing related CFD analysis after the model is built to obtain a pressure analysis result, wherein the surface pressure distribution result is used for evaluating the stress condition change of each part and determining whether the scheme can achieve the optimization effect.

FIG. 5 is a diagram of the results of cross-sectional streamline analysis in a complete vehicle. In order to further verify the validity of the scheme, CFD analysis and calculation are carried out in ANSYS FLUENT software, surface pressure distribution and speed distribution are obtained through calculation, and wind resistance of the whole vehicle and parts is obtained.

Through the windage contrast with the same whole car that does not take the side skirt board, adopt the utility model discloses a behind the water conservancy diversion side skirt board, whole car windage has reduced 5.5%, and whole car yawing force is descended to 52N by 85N, and crosswind stability has promoted 38.8%. Specifically, the wind resistance coefficient reduction values of the whole vehicle and each part are as follows:

TABLE 1

To sum up, adopt on whole car the utility model discloses a behind the water conservancy diversion side skirt board, reduced whole car windage, improved crosswind stability, reduced whole car oil consumption.

The utility model discloses a water conservancy diversion side skirt board, but wide application in whole car manufacturing industry.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. 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. A flow directing side skirt for a van, comprising: the side skirt board body is arranged on the side face of the frame at the bottom of the container, at least one flow guide part extending along the length direction of the side skirt board body is arranged on the side skirt board body, and the flow guide part extends from the rear part of the side skirt board body to the front part of the side skirt board body.

2. The lateral skirt of claim 1, wherein at least two of the flow directing elements are disposed on the lateral skirt body, the flow directing elements being equally spaced across the width of the lateral skirt body.

3. The flow-guiding side skirt of claim 2, wherein the distance between two adjacent flow-guiding elements is 100mm to 120 mm.

4. The flow directing side skirt of any one of claims 1 to 3, wherein the flow directing element has a length of 3000mm to 3500mm and a width of 30mm to 35 mm.

5. The lateral skirt of any one of claims 1 to 3, wherein the flow directing elements are channels extending through the lateral skirt body in a thickness direction of the lateral skirt body.

6. The flow directing side skirt of claim 5, wherein the flow directing element has a thickness of 10mm to 15 mm.

7. The flow directing side skirt of any one of claims 1 to 3, wherein the front end of the side skirt body is provided in an arc.

8. The lateral flow guide skirt according to any one of claims 1 to 3, wherein at least two mounting holes are formed in the upper portion of the lateral skirt body, and are used for fasteners to pass through, and the lateral skirt body is detachably connected with the side surface of the frame through at least two fasteners.

9. The flow directing side skirt of any one of claims 1 to 3, wherein a lower portion of the rear end of the side skirt body is provided with a chamfer.

10. The flow directing side skirt of any one of claims 1 to 3, wherein said side skirt body is made of a plastic material.