Demisting device for front windshields of passenger cars

Abstract

The invention provides a demisting device for front windshields of passenger cars. The demisting device comprises guide rails and demisting assemblies arranged on the guide rails. Each demisting assembly comprises an input shaft, a wiping wheel and scraping piece assemblies, wherein the two ends of the input shaft are fixed to the guide rails, the wiping wheel is arranged on the input shaft in a sleeving mode and the scraping piece assemblies are connected to the two ends of the input shaft through connecting beams. Each scraping piece assembly comprises a fixed plate with the main body shaped like a sleeve, scraping piece shafts, a coil spring and a scraping piece, wherein the scraping piece is fixed to the tangent line position of the outer circumferential wall of the fixed plate, the two ends of the fixed plate are connected to the scraping piece shafts through bearings, a fixed base is arranged on the inner circumferential wall of the fixed plate, one end of the coil spring is connected to the scraping piece shaft, and the other end of the coil spring is connected to the fixed base. According to the invention, the scraping piece assemblies can guarantee that the scraping pieces press the mirror surfaces of the windshields under the effect of the coil springs, mists can be effectively wiped, the wiping wheels can rotate around the input shafts so that the mists can be further wiped, uncontinuous scraping marks or wiping marks left on the windshields can be reduced greatly, the demisting effect is good, drivers can have good visual fields, and the traffic safety can be improved.

Description

technical field [0001] The invention relates to a glass defogging device, in particular to a passenger car front windshield defogging device. Background technique [0002] Modern passenger cars have larger front windshields. When the ambient temperature is low, due to the airtight environment of the passenger car, the temperature of the carbon dioxide exhaled by the passengers in the car is high, and the water vapor is easy to condense into fog after encountering the front windshield, blocking the driver's sight and bringing great hidden dangers to driving . Because the height and width of the front windshield glass of passenger cars are relatively large, when air-conditioning ventilation is used to defog through the bottom of the front windshield, it cannot be effectively defogged. At present, the authorized notification number CN202641635U "A front windshield defogger for passenger cars" proposes a physical defogging device, which is driven by a common motor with the out...

AI Technical Summary

Problems solved by technology

However, since the front windshield is a curved surface, the scraper cannot fit the curved surface for defogging during the movement process, so this patent still cannot achieve effective defogging

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