CN201099288Y - Flow guiding structure capable of reducing wind resistance - Google Patents

Abstract

The utility model provides a can reduce water conservancy diversion structure of windage, establish the tail end position at the automobile body, this water conservancy diversion structure has the cavity framework, this framework comprises the plural number guide plate, these guide plates are the arc, form airflow channel between these guide plates, and the terminal surface forms the air intake before this framework, form the air outlet at this framework rear end face, this air intake and this air outlet and this airflow channel intercommunication, and this air intake area is greater than this air outlet area, make this air outlet form the nozzle effect, produced air current forces the guide via the air intake of this framework when the driving, derive by the air outlet again behind this airflow channel, form intangible wind wall behind the car, reduce the car rear vortex region, and make the air current comparatively smooth, in order to promote driving efficiency.

Description

Air diversion structure to reduce wind resistance

technical field

The utility model relates to a diversion structure, in particular to a diversion structure which can reduce the wind resistance of driving.

Background technique

Since general vehicles will be affected by the wind resistance generated by the air flow and affect driving efficiency, the common solution is to install deflectors. In addition to small cars, large vehicles that run long distances need deflectors even more. The weight is heavier than that of ordinary small cars. In the high-speed driving state, no car can avoid the fuel consumption problem caused by wind resistance; the only difference is that in the known technology, the deflector of large cars is installed on the top of the front of the car Position, and erected on the roof in an oblique manner, by obliquely placing the deflector, the vehicle can change the flow angle of the head-on airflow when the vehicle is running, so as to reduce the impact of wind resistance caused by high-speed driving.

Although the deflector at the top of the front of the car can change the direction of the airflow, hoping to reduce the impact of wind resistance on the vehicle, however, when the vehicle is running, in addition to the wind resistance at the front end, the airflow passing through the car body creates a turbulent air flow field at the rear end of the car body , also directly affects the efficiency of driving.

And the known vehicle diversion structure, as shown in Figure 1, is respectively provided with sloping plate 20 at the upper and lower ends of the rear of the vehicle body 10, to change the airflow angle generated behind the vehicle body 10, so that the generated The airflow is relatively smooth, reduces the generation of eddy currents, improves the low pressure condition behind the car body 10, and then reduces the resistance when driving.

However, in the aforementioned known technology, since the installed swash plate 20 must have a large enough structure and be able to withstand the airflow intensity at high speeds, the cost of its structure is greatly increased; in addition, the position of the swash plate 20 directly hinders The switch to the car door at the rear end of the car body 10 is extremely inconvenient to use; therefore, in view of the existence of the aforementioned known structural shortcomings, it has become a problem that those skilled in the art want to solve.

Utility model content

In view of this, the main purpose of the present invention is to provide a flow guide structure that can reduce wind resistance to improve driving efficiency.

In order to achieve the above purpose, the utility model mainly provides a diversion structure that can reduce wind resistance, which is located at the rear end of the car body. The diversion structure has a hollow frame, which is composed of a plurality of deflectors. The deflectors are arc-shaped, airflow passages are formed between these deflectors, and an air inlet is formed on the front end of the frame, and an air outlet is formed on the rear end of the frame, and the air inlet communicates with the air outlet and the airflow passage , and the area of the air inlet is larger than the area of the air outlet, so that the air outlet forms a nozzle effect. When driving, the airflow generated is forcibly guided through the air inlet of the frame, and then led out by the air outlet after passing through the airflow channel. An invisible wind wall is formed behind the car to reduce the swirling area behind the car and make the air flow more smooth to improve driving efficiency.

The diversion structure of the utility model that can reduce wind resistance is provided at the rear end of the car body to guide the airflow formed by driving to change the direction of the airflow, greatly reducing the wind resistance formed by driving, thereby improving the size of the large vehicle. driving efficiency and driving stability.

Description of drawings

Fig. 1 is a schematic diagram of a known diversion structure;

Fig. 2 is the application schematic diagram of the utility model;

Fig. 3 is a partial enlarged view of area A of Fig. 2;

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

Figure 5 is a schematic diagram of the utility model assembled in the car body;

Fig. 6 is the use state figure of the utility model;

Figure 7 is a partially enlarged view of Figure 6;

Figure 8 is a schematic diagram of the swing of the diversion structure of the present invention;

Fig. 9 is a schematic diagram of the configuration of the diversion structure of the present invention;

Fig. 10 is a schematic diagram of the configuration of the diversion structure of the present invention;

Figure 11 is a schematic diagram of the configuration of the diversion structure of the present invention;

Fig. 12 is a structural schematic diagram of another embodiment of the present invention.

Explanation of reference signs

10 Body 20 Inclined plate

1 frame body 11 deflector

12 deflector 13 air flow channel

14 Air inlet 15 Air outlet

16 pivot 17 fixed plate

2 Car body 3 Fixed seat

4 locking components 5 screw components

6 drive motor

Detailed ways

The content of the present utility model is illustrated in conjunction with the accompanying drawings:

Please refer to shown in Fig. 2 to Fig. 5, the diversion structure of the present utility model is arranged on the car body (large truck among Fig. 2) tail top position of large vehicle, as shown in the partial enlarged view of Fig. 2; Continue to refer to Fig. 3, this diversion structure is mainly based on the elongated frame body 1, wherein the frame body 1 is hollow, the upper and lower ends of the frame body 1 have deflectors 11 and 12 respectively, and the deflectors 11 and 12 are An air flow passage 13 is formed between them, the surfaces of the deflectors 11 and 12 are arc-shaped, and there is an air inlet 14 on the front end of the frame 1, and an air outlet 15 on the rear end of the frame 1, and the inlet The area of the air outlet 14 is greater than the area of the air outlet 15, so that the air outlet 15 becomes a substantial nozzle. In addition, in this embodiment, the upper and lower deflectors 11, 12 are integrally formed; Outwardly extending pivot shafts 16, these pivot shafts 16 are respectively installed on the fixed seat 3, and the pivot shaft 16 is connected with the fixed seat 3 through the locking assembly 4, so that the frame body 1 has a turning effect relative to the fixed seat 3, And the fixed seat 3 is fixed on the car body 2 tail end through the screw assembly 5 again, as shown in the combination completion figure of Fig. 5 .

Referring to Fig. 6 to Fig. 8, the frame body 1 of the diversion structure of the present utility model is arranged at the tail end of the car body 2, as can be seen in the accompanying drawings of this embodiment, on the car body 2 tail end, The frame body 1 is arranged at the lower side position, so that when the car body 2 is moving, the airflow (as shown by the arrow) formed on the windward side flows along the outer peripheral edge of the car body 2. The air inlet 14 on the front face of the body 1 enters, and is exported from the air outlet 15 according to the guide direction of the airflow channel 13 inside the frame body 1, forming an invisible wind wall behind the car body 2, which can reduce the swirl area behind the car body 2 , and make the airflow relatively smooth (as shown in the airflow schematic diagram in Figure 6), so as to reduce the influence of the wind resistance formed by the airflow and improve driving efficiency; in addition, as shown in Figure 8, the flow guide direction of the flow guide structure can also follow the Car needs and wind direction conditions for up and down rotation.

Please refer to Fig. 9 to Fig. 11, wherein as shown in Fig. 9, the setting position of the diversion structure can be based on different needs and driving conditions, and the diversion structure can be arranged on the upper and lower sides of the rear end of the car body 2 or as shown in Figure 10, the diversion structure is respectively arranged at the left and right sides of the car body 2 tail end; The air guide structures are respectively arranged on the sides to reduce the wind resistance generated in each direction.

Please refer to Fig. 12, except that the deflector structure of the present utility model utilizes the aforementioned integral structure to complete the structure of the frame body 1, the frame body 1 can also be a plurality of deflector plates 11 and 12 and fixed plates 17 on the left and right sides. After the corresponding combination, the frame body 1 of the air guide structure is formed, and the airflow channel 13 is formed between the air guide plates 11 and 12; in addition, the left and right fixed plates 17 are respectively provided with pivots 16, and these pivots 16 are parallel to each other. They are respectively installed on the fixing base 3 and are jointly fixed on the rear end of the car body 2, and the driving motor 6 is arranged on the fixing base 3, and forms a linkage relationship with the pivot shaft 16. Driven by the motor 6, the Adjust the deflection and swing direction of the frame body 1 .

However, the above-mentioned implementation mode is a preferred embodiment and cannot limit the implementation scope of the present utility model. The utility models are covered by the following patents.

Claims (5)

1. A deflector structure capable of reducing wind resistance, which is installed at the rear end of the car body. It is characterized in that it includes a frame body and is composed of two or more deflectors correspondingly, and these deflectors are arc-shaped. shape, and an airflow channel is formed between these deflectors, and an air inlet is provided at one end of the frame, and an air outlet is provided at the other end of the frame, the air inlet and the air outlet communicate with the airflow channel, and The area of the air inlet is larger than the area of the air outlet. 2. The air diversion structure capable of reducing wind resistance according to claim 1, characterized in that pivots are respectively provided on both sides of the frame, and the air diversion structure also includes a fixing seat, and the pivots are pivotally connected to On the fixing seat, the fixing seat is connected to the rear end of the vehicle body. 3. The air guide structure capable of reducing wind resistance according to claim 2, wherein a motor which is connected with the pivot shaft is provided on the fixed seat. 4. The air guide structure capable of reducing wind resistance according to claim 1, wherein the frame body is integrally formed. 5. The air guide structure capable of reducing wind resistance according to claim 1, wherein the frame body further comprises two or more fixing plates, correspondingly joined with these air guide plates to form the frame body.

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