Stopper for air dam, air dam device and vehicle

Abstract

The invention relates to a stop block for an air dam, an air dam device and a vehicle. The stop block for the air dam comprises a limiting bracket, wherein a main support arm is arranged on the limiting bracket and is provided with a deformation end which can generate elastic deformation in the internal direction and the external direction, a clamping groove which is matched with the air dam in a clamping manner when the air dam is in an unfolded position is formed in the deformation end of the main support arm, wherein a notch of the clamping groove faces to right; the clamping groove is provided with a front groove wall and a rear groove wall which are pushed by the air dam when the air dam swings from forwards to rearwards or from rearwards to forwards so that the clamping groove moves left along with the deformation end. The invention provides the stop block which can improve the stability of the air dam in the unfolded position as well as the air dam device and the vehicle which use the stop block for the air dam.

Description

Technical field [0001] The invention relates to a limiter for an air dam, an air dam device and a vehicle. Background technique [0002] In order to improve the fuel combustion efficiency during high-speed operation, some motor vehicles adopt an air dam device installed below the front end of the vehicle. The lower ground clearance formed by the air dam in the air dam device makes the airflow that should flow into the bottom of the vehicle from both sides of the vehicle. Outflow, avoid high-speed airflow directly impacting the chassis to reduce the formation of vortex, improve the aerodynamic resistance of the vehicle at high speed, so it can improve the fuel economy of the vehicle at high speed. [0003] When the vehicle is running at high speed, the air dam has a more obvious effect of reducing air resistance, and the effect is less at low speed. At the same time, the air dam is installed under the vehicle and is easily damaged when encountering road obstacles. For this reason, t...

AI Technical Summary

Problems solved by technology

The problem with the existing air dam device is that the combined force of the tension of the spring on the air dam and the pressure of the air on the air dam keeps the air dam in the unfolded position. Due to the unstable speed of the vehicle or the unevenness of the road surface, the resultant force It is difficult to stabilize, which causes the air dam to shake constantly, causing noise, and even affecting the effect of reducing air diversion; there is also the fact that the air dam is hinged at the bottom of the front trim panel, and when the air dam is in the stowed position , is still partially exposed to the air, which increases the risk of damage to the air dam when it hits an obstacle; the air dam is forced through the coil spring, and if the coil spring is longer, it will cause the air dam to be exposed to the air when it is in the stowed position. The area of ​​the air dam in the air is large, which affects the passability of the vehicle. If the coil spring is short, when the air dam hits an obstacle and needs to be completely turned backwards, the coil spring may not return to its original shape due to the deformation exceeding the limit. Therefore Difficult to find suitable coil springs

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