CN201099288Y

CN201099288Y - Flow guiding structure capable of decelerating wind resistance

Info

Publication number: CN201099288Y
Application number: CNU2007201784011U
Authority: CN
Inventors: 陈世雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2008-08-13
Anticipated expiration: 2017-09-30

Abstract

An air guidance structure for reducing windage resistance is arranged on the rear end of a vehicle body. The air guidance structure is provided with a hollow frame composed of a plurality of curved air deflectors, wherein air channels are formed among the air deflectors, an air inlet is formed on the front end face of the frame, an air outlet is formed on the back end face of the frame, the air inlet and the air outlet communicate with the air channels, and the area of the air inlet is larger than that of the air outlet to enable the air outlet to form a nozzle. An air current produced when the vehicle is traveling is forcibly guided through the air inlet of the frame and guided out by the air outlet through the air channels, so that an invisible air partition is formed in back of the vehicle to reduce the rotational flow region and enable the air current to be fluent, thereby improving traveling efficiency.

Description

Can lower the flow-guiding structure of windage

Technical field

The relevant a kind of flow-guiding structure of the utility model refers to a kind of flow-guiding structure that lowers the driving windage especially.

Background technology

The windage effect that produced by air-flow owing to general vehicle influences driving efficient, therefore common settling mode is the installing deflecting plate, except compact car, the Oversize vehicle of long-distance operation needs deflecting plate especially, though the weight of Oversize vehicle is heavier than general miniature car, under high-revolving motoring condition, any car all can't be avoided the oil consumption problem that produces because of windage; Uniquely different be, in the known technology, the deflecting plate of Oversize vehicle is installed in the tip position of headstock, and form the mode of tiltedly putting and be erected at roof, by the mode of tiltedly putting this deflecting plate, make this car in motion, change the air current flow angle that head-on forms, to slow down the windage effect of running at high speed down and being produced.

Though the deflecting plate that is located at the headstock top can change the direction of air-flow, hope and lower the influence of windage for vehicle, yet during vehicle ', except front end produces windage, air-flow by car body produces disorderly air velocity distribution in the car body rear end, also directly have influence on the efficient of driving.

And known vehicle flow-guiding structure, as shown in Figure 1, be provided with swash plate 20 respectively at this upper/lower terminal place, car body 10 rear, to change the air-flow angle that car body 10 rears are produced, thereby make the air-flow that is produced comparatively smooth, reduce the generation of eddy current, improve car body 10 rear low pressure situations, and then lower the resistance when driving a vehicle.

Yet aforesaid known technology because the necessary volume of set swash plate 20 structures is enough big, and can bear its current rate under running at high speed, therefore causes its infrastructure cost unprecedented soaring; In addition, the switch that these swash plate 20 set positions directly hinder car body 10 rear end car doors causes the extreme inconvenience in the use especially; Therefore, because the existence of aforementioned known configurations shortcoming becomes the problem that those skilled in the art's desire solves.

The utility model content

In view of this, main purpose of the present utility model is to provide a kind of flow-guiding structure that lowers windage, to promote driving efficient.

In order to reach above-mentioned purpose, the utility model mainly provides a kind of flow-guiding structure that lowers windage, be located at the tail end position of car body, this flow-guiding structure has the hollow framework, this framework is made up of plural deflecting plate, these deflecting plates are curved, between these deflecting plates, form gas channel, and form ventilation inlet at this frame forward end face, form the air port at this framework aft end face, this ventilation inlet is communicated with this gas channel with this air outlet, and this air-admitting surface is greater than this air outlet area, make this air outlet form nozzle act, the air-flow that is produced when driving is via the ventilation inlet enforced guiding of this framework, by being derived by air outlet behind this gas channel again, behind car, form invisible brattice, eddy flow zone behind the minimizing car, and make air-flow comparatively smooth, to promote driving efficient.

The flow-guiding structure that lowers windage of the present utility model is provided with in order to guide the framework of the driving air-flow that forms at the car body tail end, to change the direction of this air-flow, significantly reduces the formed windage of driving, promotes the driving efficient and the roadability of Oversize vehicle whereby.

Description of drawings

Fig. 1 is known flow-guiding structure scheme drawing;

Fig. 2 is an application scheme drawing of the present utility model;

Fig. 3 is the a-quadrant partial enlarged drawing of Fig. 2;

Fig. 4 is a three-dimensional exploded view of the present utility model;

Fig. 5 is assembled in the car body scheme drawing for the utility model;

Fig. 6 is running condition figure of the present utility model;

Fig. 7 is the partial enlarged drawing of Fig. 6;

Fig. 8 is a flow-guiding structure swing scheme drawing of the present utility model;

Fig. 9 is a flow-guiding structure configuration schematic diagram of the present utility model;

Figure 10 is a flow-guiding structure configuration schematic diagram of the present utility model;

Figure 11 is a flow-guiding structure configuration schematic diagram of the present utility model;

Figure 12 is another example structure scheme drawing of the present utility model.

Description of reference numerals

10 car bodies, 20 swash plates

1 framework, 11 deflecting plates

12 deflecting plates, 13 gas channels

14 ventilation inlets, 15 air outlets

16 pivots, 17 adapter plates

2 car bodies, 3 permanent seats

4 locked assemblies, 5 screw assemblies

6 CD-ROM drive motor

The specific embodiment

Content conjunction with figs. of the present utility model is illustrated:

See also Fig. 2 to shown in Figure 5, flow-guiding structure of the present utility model is installed in car body (as the truck among Fig. 2) the afterbody apical position of Oversize vehicle, shown in the partial enlarged drawing of Fig. 2; The continuous Fig. 3 that consults, this flow-guiding structure is based on microscler framework 1, wherein this framework 1 is hollow form, the upper and lower side of this framework 1 has deflecting

plate

11 and 12 respectively, and be formed with gas channel 13 this

deflecting plate

11 and 12, this

deflecting plate

11 and 12 plate face are curved, and has ventilation inlet 14 at the front end face of framework 1, aft end face in framework 1 then has air outlet 15 again, and ventilation inlet 14 areas are greater than air outlet 15 areas, make air outlet 15 become the essence nozzle, upper and lower in the present

embodiment deflecting plate

11,12 constitutes for one in addition; And be respectively equipped with outward extending pivot 16 at the left and right end position of framework 1, these pivots 16 are located in respectively on the permanent seat 3, and pivot 16 and permanent seat 3 are connected via locked assembly 4, make framework 1 have steering-effecting with respect to permanent seat 3, and permanent seat 3 is fixed on car body 2 tail ends through screw assembly 5 again, finishes shown in the figure as the combination of Fig. 5.

See also Fig. 6 to shown in Figure 8, the framework 1 of flow-guiding structure of the present utility model is located at the tail end of car body 2, in the accompanying drawing of present embodiment, can find out, on car body 2 tail ends, lower position all is provided with framework 1, make car body 2 when advancing, the air-flow (as shown by arrows) that the windward side forms is taken advantage of a situation and is flowed along the outer peripheral edges of car body 2, when flowing to the tail end position, ventilation inlet 14 from framework 1 front end face enters, and derive from air outlet 15 according to the water conservancy diversion direction of framework 1 internal gas flow passage 13, form invisible brattice at car body 2 rears, can reduce eddy flow zone, car body 2 rear, and make air-flow comparatively smooth (air-flow scheme drawing as shown in Figure 6), with the influence of reduction windage that air-flow is formed, and promote driving efficient; In addition, as shown in Figure 8, the water conservancy diversion direction of this flow-guiding structure also can be done to rotate up and down with the needs and the wind direction condition of driving.

See also Fig. 9 to shown in Figure 11, wherein shown in Figure 9, the position is set at upper and lower two side positions of car body 2 tail ends flow-guiding structure is set all based on different needs and driving states of this flow-guiding structure; Or as shown in figure 10, this flow-guiding structure is set respectively in car body 2 tail end and arranged on left and right sides positions; Also can on upper and lower, left and right each side of car body 2 tail ends, this flow-guiding structure be set respectively, to lower the windage that all directions were produced as shown in figure 11.

See also shown in Figure 12, flow-guiding structure of the present utility model is finished this framework 1 structure except the aforementioned mode of utilizing one to constitute, this framework 1 also can be

plural deflecting plate

11 and 12 corresponding with the adapter plate 17 of the left and right sides in conjunction with after, the framework 1 of forming this flow-guiding structure, and at this

deflecting plate

11 and 12 formation gas channels 13; In addition, be respectively equipped with pivot 16 on the adapter plate 17 of left and right sides, these pivots 16 also are located in respectively on the permanent seat 3, and be fixed on the tail end of car body 2 jointly, and CD-ROM drive motor 6 is set on the permanent seat 3, and form continuous action relations with pivot 16, under the drive via motor 6, whereby to adjust the deflection swaying direction of framework 1.

But, above-described embodiment is preferred embodiment, can not limit practical range of the present utility model with this, if the equivalence of doing according to the utility model claim and description changes or modification, all should belong to the following patent covering scope of the utility model.

Claims

1, a kind of flow-guiding structure that lowers windage, in order to be installed in the car body tail end, it is characterized in that, comprise framework, form by two or more deflecting plates are corresponding, these deflecting plates are all curved, and between these deflecting plates, be formed with gas channel, in addition the end in this framework has ventilation inlet, has air outlet at the other end of this framework, this ventilation inlet and this air outlet are communicated with this gas channel, and this air-admitting surface is greater than this air outlet area.

2, the flow-guiding structure that lowers windage as claimed in claim 1 is characterized in that, two side positions of described framework are respectively equipped with pivot, and this flow-guiding structure also comprises permanent seat in addition, and this pivot is articulated on this permanent seat, and this permanent seat is connected this car body tail end.

3, the flow-guiding structure that lowers windage as claimed in claim 2 is characterized in that, also is provided with the motor that forms the interlock effect with this pivot on the described permanent seat.

4, the flow-guiding structure that lowers windage as claimed in claim 1 is characterized in that, described framework is that one constitutes.

5, the flow-guiding structure that lowers windage as claimed in claim 1 is characterized in that, described framework also comprises two or more adapter plates, and corresponding joint with these deflecting plates is formed this framework.