The invention relates to an automobile lamp which cannot be fogged when being normally used under any weather condition. On the basis of an original lamp, two technical schemes are adopted: firstly, a full-sealed structure is adopted, humid gas is pumped out, and dry gas is injected, so that the relative humidity in the lamp is lower than 20%, and the lamp is not fogged when being used in a temperature range of -40 to 80 DEG C; and secondly, an air pressure balancer is additionally arranged at the lower part of the lamp and consists of an outer cover, an inner cover, a silica gel film and a sealing ring. When the temperature rises, the gas expands, the silica gel film expands towards the outer cover, and the pressure in the lamp slightly rises and then balanced. When the temperature is reduced, the gas shrinks, the silica gel film shrinks towards the inner cover, and the pressure in the lamp is slightly reduced and then is balanced, so that the gas pressure in the lamp is kept at about 1atm (the change value is within 0.2 atm) within the temperature range of -40 to 80 DEG C, and the situation that the lamp is exploded to influence the normal use of the lamp due to the fact that the pressure of the lamp is increased or negative pressure is caused by temperature change is avoided.
本发明是一种在任何气候条件下正常使用都不起雾的汽车灯具。它在原来灯具的基础上采取两个技术方案:第一采用全密封结构,抽出潮湿气体,注入干燥气体,使灯内相对湿度低于20%,灯具在‑40~80℃的温度范围内使用不起雾;第二在灯具下部加装一个气压平衡器,它由外罩、内罩、硅胶膜和密封圈组成。温度升高,气体膨胀,硅胶膜向外罩膨胀,灯内压力略有上升,然后达到平衡;温度降低,气体收缩,硅胶膜向内罩收缩,灯内压力略有下降,然后达到平衡,使灯内的气体压力在‑40~80℃的温度范围内,仍然保持在1atm上下(变化值在0.2atm以内),不至于使灯具因温度变化导致压力升高或负压,造成灯具炸开而影响灯具正常使用。
Fogging-free automobile lamp
不起雾的汽车灯具
01.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21W Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend den Gebrauch oder Einsatz von Leuchten oder Beleuchtungssystem , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS |
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