LED light source device for street lights

Abstract

To solve the problem that although an LED lamp on the market is used by inserting the LED lamp with a cap into a socket in a light fixture of a mercury lamp, when a length of a light fixture of a road lamp is long, the LED lamp is not located in the center of the light fixture, but is closer to the socket, making it impossible to distribute light efficiently.SOLUTION: An LED light source device for a road lamp is composed of a light source part that stores an LED module, a U-shaped frame that fixes a side surface of the light source part, and a plate that attaches a cap to the U-shaped frame, where a cap part is inserted into a mercury lamp socket, and the light source is slid to an appropriate position along the U-shaped frame and fixed in place.SELECTED DRAWING: Figure 1

Description

Technical Field

[0007]

[0001] The present invention relates to an LED light source device installed in a street lamp using an existing mercury lamp.

Background Art

[0002] Conventionally, mercury lamps have been the mainstream as the light source of street lamps. However, in recent years, high-brightness LEDs have been developed and, due to advantages such as long life and power saving, LEDs have come to be adopted as the light source instead of mercury lamps.

[0003] In general, for street lamps using LEDs as the light source, the existing lamp fixtures are replaced with new LED lamp fixtures, and the poles are used as they are.

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] However, the lamp fixtures of street lamps are within their sufficient service life, and it is not economical to discard them as they are. It is economical and the replacement work is easy if only the mercury lamp is replaced with an LED lamp. For such purposes, various LED lamps have been developed and put on the market.

[0005] The LED lamps put on the market are used by inserting an LED lamp with a base into the socket in the lamp fixture of the mercury lamp. However, if the length of the lamp fixture of the street lamp is long, the position of the LED lamp is not in the center of the lamp fixture, and efficient light cannot be distributed close to the socket side.

Means for Solving the Problems

[0006] To solve the above problems, the present invention comprises a light source part for housing an LED module, a U-shaped frame for fixing the side surface of the light source part, and a plate for attaching a base to the U-shaped surface. The base part is inserted into the mercury lamp socket, and the light source part is configured to be slid along the U-shaped frame to an appropriate position and fixed.

Effects of the Invention

[0007] According to the present invention, existing streetlight fixtures using mercury lamps can be used as is, and because the position of the light source can be adjusted, the light source can be fixed in an appropriate position, enabling efficient light distribution. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described below with reference to the drawings.

[0009] Figure 1 shows an LED light source device housed within a street light fixture, illustrating an embodiment of the present invention. This LED light source device has a U-shaped frame 3 along both sides of the light source unit 1, and a plate for attaching the base unit 2 is provided on the opposite side of the opening of the U-shaped frame 3. There are several screw holes on both sides of the U-shaped frame 3 for fixing the light source unit 1 when it is slid, allowing the light source unit 1 to be fixed in a predetermined position. The base unit 2 is attached to the socket that fixes the mercury lamp in the street light, and the light source unit 1 can be fixed in an appropriate position within the light fixture, for example, in the center of the light fixture.

[0010] Figure 2 is a perspective view when the light source unit 1 has been moved to the appropriate position.

[0011] By installing the LED light source unit 1 in the center of the luminaire, the light distribution of the LED light source is improved, and sufficient illumination characteristics for use as a road light can be obtained. [Brief explanation of the drawing]

[0012] [Figure 1] A plan view of an LED light source device for road lighting, illustrating an embodiment of the present invention. [Figure 2] A perspective view of an LED light source device for road lighting with the light source unit moved, illustrating an embodiment of the present invention. [Explanation of symbols]

[0013] 1...LED light source section 2. Mouthpiece 3. U-shaped frame

Claims

[Claim 1] It consists of a light source unit that houses an LED module, a U-shaped frame that fixes the sides of the light source unit, and a plate to which a base is attached to the U-shaped frame. The base is inserted into a mercury lamp socket, the U-shaped frame has a guide portion that allows the light source unit to slide along the frame, and the light source unit is movable to a position that protrudes forward from the front surface of the U-shaped frame. The LED light source device for road lighting is configured such that the light source can be slid and fixed away from the base, thereby allowing adjustment of the distance from the base to the light source.

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