Lamp defogging structure and motor vehicle lighting equipment with the structure
A lamp and anti-fog technology, applied in lighting and heating equipment, motor vehicles, road vehicles, etc., can solve the problems of limited service life of the anti-fog layer, loss of defogging effect, failure of lamps, etc., and achieve the effect of improving the moisture absorption effect
Active Publication Date: 2021-11-12
VALEO LIGHTING HUBEI TECHN CENT
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Problems solved by technology
Condensation fog will affect the use effect of the lamps, and even cause the lamps to fail
[0003] In order to solve this problem, some of the existing lamps and lanterns are designed to prolong the condensation time of the luminous parts after use to alleviate the condensation phenomenon; Fog speed, in order to eliminate the adverse effects of condensation phenomenon; there are some ways to solve the fog condensation problem by coating the anti-fog layer in the lamp, but the disadvantage of this method is that the service life of the anti-fog layer is limited and the cost Others use a desiccant inside the lamp to absorb the mist, but once the desiccant is saturated with moisture, it will lose the defogging effect, so this method has a short service life
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[0037] Specific embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like reference numerals designate like or similar elements throughout. The specific embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but not construed as a limitation of the present invention.
[0038] In order to clearly describe and introduce the inventive concept of the present invention, the motor vehicle headlamp will be adopted as an example below in conjunction with the attached Figure 1-6 Specific examples of the present invention are described. In the attached picture, figure 1 It is a structural schematic diagram of a lighting device for a motor vehicle (for example, a headlight) according to an embodiment of the present invention, where the dotted line part schematically shows the fog condensation area 12 in the lamp; figure 2...
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The invention provides an anti-fog structure for a lamp, comprising: a lamp body (10), the lamp body (10) including a lamp housing (11), and the lamp housing is provided with at least one opening for feeding and discharging materials, Wherein, the opening of the lamp housing is provided with a sealing member that is sealed relative to the external environment; and an anti-fog pipe (20), the material port of which is connected to the opening of the lamp housing (11), and is built inside the anti-fog pipe. A desiccant (30) is placed, and air holes (21) are formed on the anti-fog pipeline, so that the moisture absorption function of the desiccant in the anti-fog pipeline can be realized through the air holes. At the same time, the present invention also provides a motor vehicle lighting device with the aforementioned lamp defogging structure. The invention can alleviate and / or solve the problems caused by the fog condensation phenomenon in the lamps.
Description
technical field [0001] The invention relates to the field of light illumination and signal indication, in particular to a lamp defogging structure and a motor vehicle lighting device having the aforementioned lamp defogging structure. Background technique [0002] In the field of motor vehicle lighting equipment, after use of light-emitting components, condensation will inevitably occur, especially when the humidity inside the lamp is high. The fog condensation phenomenon will affect the use effect of the lamps and even cause the lamps to fail. [0003] In order to solve this problem, some of the existing lamps and lanterns are designed to prolong the condensation time of the luminous parts after use to alleviate the condensation phenomenon; Fog speed, in order to eliminate the adverse effects of condensation phenomenon; there are some ways to solve the fog condensation problem by coating the anti-fog layer in the lamp, but the disadvantage of this method is that the servic...
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IPC IPC(8): F21S45/30F21W107/10
Inventor 孙艳谭海滨李驿林
Owner VALEO LIGHTING HUBEI TECHN CENT