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Lamp for vehicle

一种车辆用灯、壳体的技术，应用在道路车辆、车辆部件、机动车等方向，能够解决不可能、无法湿气逃散等问题，达到防止模糊的效果

Active Publication Date: 2016-11-16
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plastics that make up the lens and housing are hygroscopic, so creating a completely enclosed lamp space is inherently impossible
Moreover, when a completely sealed lamp space is formed, the moisture that has invaded the lamp space cannot escape to the outside.

Method used

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  • Lamp for vehicle
  • Lamp for vehicle
  • Lamp for vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0028] Such as Figure 1 ~ Figure 3 As shown, the vehicle lamp 100 of this embodiment includes a plurality of light sources 10 , a lens 20 , and a housing 30 . The lens 20 is arranged in front of the light source 10 . The lens 10 and the housing 30 are combined to form a lamp space 50 . The light source 10 is arranged in the lamp space 50 . In the present embodiment, the vehicle lamp 100 is a tail lamp, specifically, a combination lamp including a tail lamp, a parking lamp, and a turn signal lamp.

[0029] An example of the light source 10 is an LED light bulb. The light source 10 is appropriately selected according to the application of the vehicle lamp 100 . The lens 20 is a member made of a resin having a property of transmitting visible light, such as an acrylic resin. The housing 30 is made of polypropylene (PP), polybutylene terephthalate (PBT), acrylic-styrene-acrylonitrile copolymer (ASA), acrylonitrile-butadiene-styrene copolymer (ABS ), polycarbonate (PC), PC / A...

no. 2 approach

[0041] Such as Figure 4 As shown, the vehicle lamp 200 of this embodiment includes a first vent portion 140 and a plurality of second vent portions 42 . The configuration of the vehicle lamp 200 is the same as that of the vehicle lamp 100 of the first embodiment except for the first vent portion 140 . Therefore, common elements in the vehicle lamp 100 of the first embodiment and the vehicle lamp 200 of the present embodiment are denoted by the same reference numerals, and their descriptions may be omitted. That is, the descriptions about the respective embodiments can be applied to each other as long as there is no technical conflict. In addition, the respective embodiments can be combined with each other as long as there is no technical contradiction.

[0042] As described in the first embodiment, the casing 30 may be a member made of thermoplastic resin such as polypropylene. The first vent portion 140 is formed of a porous body of thermoplastic resin, and is integrated ...

Embodiment

[0049] (Example)

[0050] exist Figure 5 In position A shown, an opening is formed in the housing (opening area 300mm 2 ). An ultrahigh molecular weight polyethylene porous body (manufactured by Nitto Denko, Sunmap (registered trademark), thickness 2.0 mm) was fixed to the opening by double-sided tape (manufactured by Nitto Denko, No. 5000NS) so as to close the opening. case. Openings other than the opening at position A were blocked with adhesive tape. The vehicle lamp of the example was obtained by combining the housing and the lens.

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PUM

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Abstract

The invention discloses a lamp for a vehicle. The lamp (100) is provided with a light source (10), a lens (20), a housing (30), and a ventilation portion (40). The housing (30) is combined with the lens (20), and forms a lamp space (50) in which the light source (10) is disposed. The lamp space (50) includes a narrow region (50a) in which the distance between the lens (20) and the housing (30) is 10mm or less. The ventilation portion (40) is provided in the housing (30) in a position facing the narrow region (50a).

Description

technical field [0001] The present invention relates to lamps for vehicles. Background technique [0002] Vehicle lamps such as headlights and taillights have a lamp space formed by a lens and a housing. Light sources such as LED bulbs are arranged in the lamp space. One of the problems in vehicle lamps is that condensation occurs in the lamp space and the lens is blurred. In order to prevent the occurrence of condensation, it is effective to form a completely sealed lamp space. However, the plastics that make up the lens and housing are hygroscopic, so creating a completely enclosed lamp space is inherently impossible. Furthermore, when a completely sealed lamp space is formed, moisture that has entered the lamp space cannot escape to the outside. Therefore, a vent member for preventing lens blurring is attached to a conventional vehicle lamp (see Patent Documents 1 and 2). The ventilation member prevents foreign objects such as rainwater and dust from intruding into t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/10F21V15/01F21V31/03F21W101/02F21W101/12F21W101/14F21Y115/10F21W107/00F21W107/10
CPCF21S45/37F21S45/30B60Q1/0005F21W2107/00
Inventor 手塚铁兵矢野阳三古内浩二
Owner NITTO DENKO CORP
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