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Lamp unit

一种灯单元、发光元件的技术，应用在车辆聚光灯、照明和加热设备、运输和包装等方向，能够解决降低外观品质、降低照明度等问题

Inactive Publication Date: 2012-09-26
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the related lamp unit, since there is a concern that foreign matter such as dust intrudes into the housing through the opening, there is a problem that foreign matter attaches to the rear side of the lens or the lighting element thereby reducing illuminance; or The problem that foreign matter attached to the lens or the rear side of the light-emitting element is observed from the outside thereby degrading its appearance quality
[0005] In particular, such a problem frequently arises in a current unit used as a map light mounted on the roof (ceiling portion) of a vehicle because foreign substances easily intrude into the housing through the opening of the housing.

Method used

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Embodiment Construction

[0036] Below, will refer to figure 1 To FIG. 6 illustrates the lamp unit 10 according to the preferred embodiment of the present invention.

[0037] The lamp unit 10 includes a housing 11 (opening 11a, attachment holes 11b, 11c, wall 11d, extensions 11e to 11j), lens 12 (lens body 12a, flange 12b, fixing members 12c, 12d, wall 12e To 12g, surface 12h), substrate 13 (attachment holes 13a, 13b), light-emitting element 14, etc.

[0038] Such as figure 1 with figure 2 As shown in, the map light combination switch device 100 is formed in a flat horizontally long shape and is installed on the inner roof of the vehicle, so that the longitudinal direction of the map light combination switch device 100 can be consistent with the lateral direction of the vehicle.

[0039] Such as figure 1 As shown in, the map light combination switch device 100 is provided with light units 10 forming map lights at both ends thereof, and between the two light units 10 along the horizontal direction line is pro...

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Abstract

A lamp unit, comprises a substrate on which a luminous element is mounted, a housing having an opening in which the luminous element is arranged, and a lens arranged at a light emitting side of the luminous element, wherein the housing is sandwiched and fixed between the substrate and the lens; and wherein the lens is provided with a first wall portion protruding from a side of the lens facing the housing and surrounding the opening of the housing, and the housing is provided with a second wall portion protruding from a side of the housing facing the substrate and surrounding the opening of the housing.

Description

Technical field [0001] The invention relates to a lamp unit. Background technique [0002] Related lamp units using light-emitting elements such as LEDs have been configured such that the light-emitting elements are mounted on a substrate, a lens is provided on the light emitting side of the light-emitting element, and the lens and the substrate are covered by means of a housing so that all The lens is exposed from the opening (see Patent Document 1). [0003] Patent Document 1: JP-A-2007-35788 [0004] In the related lamp unit, since there is a fear that foreign substances such as dust invade the housing through the opening, there is a problem that the foreign substances are attached to the lens or the rear side of the lighting element, thereby reducing the illuminance; or The problem of foreign matter attached to the rear side of the lens or the light-emitting element thereby degrading its appearance quality is observed from the outside. [0005] In particular, because foreign sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V19/00F21V17/10
CPCF21S2/00B60Q3/0296B60Q3/0286F21V17/10F21V19/00B60Q3/02B60Q3/82B60Q3/76
Inventor 福井弘贵市川忠冲稻垣聪
Owner TOYODA GOSEI CO LTD
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