Front defrosting grid for automobile

Abstract

The invention discloses a front defrosting grid for an automobile, which comprises a central air duct and front air grids; the bottom of the central air duct is provided with an air inlet, the middle part thereof is connected with a side defrosting air duct, and the top end thereof is provided with two groups of front air grids which are symmetrically arranged left and right; each front air grid consists of a plurality of flow deflectors with guidance function; the distance of lower ends of two adjacent flow deflectors of each group of front air grids is less than that of upper ends of the two adjacent flow deflectors; and a second flow deflector close to a symmetrical central line of each group of front air grid is consistent with the vertical direction of the automobile, and other flow deflectors are arranged at included angles with the vertical direction. After airflow passes through a group of flow deflectors with gradient angles, two sides of front windscreen are ensured to be blown by enough airflow so as to optimize front defrosting performance effectively, and a condition that a low velocity zone exists in the center because the angles of the flow deflectors are overlarge and most airflow is guided to the two sides is avoided, so the mist or frost on the whole front windscreen is quickly and evenly melted and the driving safety is ensured.

Description

technical field [0001] The invention relates to the technical field of defrosting and defogging of an automobile air-conditioning system, in particular to a defrosting grille structure in front of an automobile. Background technique [0002] In auto parts, the function of the defrosting grille is to blow out hot air when needed to defuse the fog or frost on the windshield and ensure driving safety. The current design of the shape of the front defrosting grill is usually based on the determination of the CAS surface in the passenger compartment (including the instrument panel, front windshield and the position of the defrosting air vent) and the shape of the defrosting air duct, and then adjust the grill according to needs The size, position, and shape of the blades ensure that the front defrosting airflow can blow to the inside of the front windshield evenly and at high speed, which plays a good role in defrosting and defogging, and ensures that the defrosting and defogging ...

AI Technical Summary

Problems solved by technology

[0003] However, compared with the traditional mini-car and car front defrosting vents that are slender and distributed at the front of the instrument panel, a current trend in car interior styling has greatly shortened the length of the front defrosting vents, that is, the front defrosting vents. The space left by the air outlet is limited, and the air outlet area is reduced

In this case, the use of the original thin strip grille for decoration will easily concentrate the front defrosting airflow in the center of the front windshield, resulting in low airflow velocity on both sides, and there may be hidden dangers that the defrosting and defogging performance may not meet the standards

Images