To provide a heat insulating structure of a vehicular window device capable of securing heat resistant performance and heat insulation performance while suppressing an increase in thickness of a heat insulating layer in a configuration in which the heating insulating layer is provided on a rear face of a heater for heating a window.SOLUTION: A heat insulating structure of a vehicular window device includes: a heater 42 which is provided in a device body 22 arranged at a vehicle inner side of a window shield 10; a light shielding hood 40 which is provided between the windshield 10 and a heater 42 and applies radiation heat to the windshield 10 by receiving heat from the heater 42; and a heat insulating layer 48 which is provided on a rear face at an opposite side of the light shielding hood 40 of the heater 42. The heat insulating layer 48 is formed by laminating a plurality of heat insulating materials 62 and 64. The heat insulating material 62 at a side closer to the heater 42 has a heat resistant property higher than that of the heat insulating material 64 at a side far from the heater 42. The heat insulating material 64 at the side far from the heater 42 has heat conductivity lower than that of the heat insulating material 62 at the side closer to the heater 42.SELECTED DRAWING: Figure 1

    【課題】ウインドを暖めるヒータの裏面に断熱層が設けられる構成において、断熱層の厚みの増加を抑えつつ、耐熱性能と断熱性能を確保可能な車両用ウインド装置の断熱構造を提供する。【解決手段】車両用ウインド装置の断熱構造は、車両のフロントウインド10よりも車内側に配置される装置本体22に設けられたヒータ42と、フロントウインド10とヒータ42との間に設けられ、ヒータ42から熱を受けることによりフロントウインド10に輻射熱を及ぼす遮光フード40と、ヒータ42の遮光フード40と反対側の裏面に設けられた断熱層48と、を備え、断熱層48は、複数の断熱材62、64が積層されて形成されており、ヒータ42に近い側の断熱材62は、ヒータ42から遠い側の断熱材64よりも耐熱性が高く、ヒータ42から遠い側の断熱材64は、ヒータ42に近い側の断熱材62よりも熱伝導率が低い。【選択図】図1


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    Title :

    HEAT INSULATING STRUCTURE OF VEHICULAR WINDOW DEVICE


    Additional title:

    車両用ウインド装置の断熱構造


    Contributors:

    Publication date :

    2019-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / F16L PIPES , Rohre



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