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Vehicle Lamps

A technology for lamps and vehicles, which is applied in the direction of headlights, road vehicles, vehicle parts, etc., and can solve the problems of reduced incident light, easy shrinkage, laser scattering, etc.

Active Publication Date: 2021-10-26
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when the amount of protrusion protruding from the appearance surface of the facing surface is large, in the injection molding of the mold using the cover, it is easy to cool the molten resin at the continuous part that is continuous with the facing surface of the appearance surface. Shrinkage occurs
The continuous part of the facing surface that is continuous with the appearance surface is the part where the laser light is incident when the cover is laser welded to the lamp housing. If shrinkage occurs, the laser light will scatter and the incident amount of the laser light incident on the facing surface will decrease and may Does not ensure a stable engagement of the cover relative to the lamp housing

Method used

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Examples

Experimental program
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Embodiment Construction

[0033] Hereinafter, embodiments of the frame structure for a vehicle according to the present invention will be described with reference to the drawings.

[0034] Embodiments shown below apply the vehicle lamp of the present invention to a lamp of a combination lamp having a tail light function. It should be noted that the present invention can be widely used in headlights, turn signals, width lights, brake lights, daytime running lights, turn indicators, hazard warning lights, position lights, reversing lights, fog lights or In various vehicle lamps such as combination lamps combining them.

[0035] In the following description, the direction in which light from the light source is irradiated to the outside is referred to as the direction of front, rear, up, down, left, and right. However, the directions of front, back, up, down, left, and right shown below are for convenience of description, and implementation of the present invention is not limited to these directions.

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PUM

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Abstract

The present invention provides a vehicle lamp capable of ensuring a stable joint state of a cover with respect to a lamp housing. A vehicular lamp comprising: a lamp housing having an internal space and a welding surface formed thereon; and a cover covering the internal space, the cover being joined to the lamp housing by laser welding. The facing surface is formed as a welding surface facing another vehicle lamp positioned adjacently, and at least a part of the facing surface is formed as a transparent portion. Thus, since the lamp housing is provided with at least a part of the facing surface that is a transparent portion, and it is not necessary to provide the facing surface on the cover, and the cover can be formed into a shape that is difficult to shrink during injection molding, therefore, it can be made from A sufficient amount of laser light incident on the cover can reach the welding surface, so that a stable joining state of the cover relative to the lamp housing can be ensured.

Description

technical field [0001] The present invention relates to the technical field of a vehicle lamp whose cover is joined to a lamp housing by laser welding. Background technique [0002] In vehicle lamps such as tail lights, for example, there is a state in which the non-movable part and the movable part of the vehicle are arranged in adjacent positions so that both vehicle lamps are integrally recognized as a single vehicle lamp. A so-called seamless vehicle lamp (for example, refer to Patent Document 1). For example, one vehicular lamp is arranged on the main body of the vehicle, which is a non-movable part, and the other vehicular lamp is arranged on a movable part, that is, a tailgate. It is located adjacent to the lamps for the other party's vehicle. [0003] In such a seamless vehicle lamp, the respective covers of the one vehicle lamp and the other vehicle lamp are provided at positions other than the appearance surface where the outer surface faces the outside of the ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S43/20F21S43/27F21S41/20F21S41/29F21W107/10
CPCF21S41/20F21S41/29F21S43/20F21S43/27F21W2107/10
Inventor 渡边晃池田利正
Owner KOITO MFG CO LTD