JP3207649U - lighting equipment - Google Patents

Abstract

In a lighting fixture in which an electric wire for supplying power to an LED is led out, a lighting fixture capable of firmly fixing the electric wire is provided. A board 15, an LED 16 mounted on the board 15, a cylindrical cover 11 that accommodates the board 15 and the LED 16, and caps 12 disposed at both ends of the cover 11, the cap 12 is a cover. 11 and a large diameter portion having a diameter larger than the inner diameter of the cover 11 formed integrally with the small diameter portion, and the small diameter portion is included in the cover 11. The electric wire 13 arranged and electrically connected to the LED 16 is introduced into the cap 12 from the small diameter portion and led out from the outer peripheral surface 12c of the cap 12 to the outside. [Selection] Figure 4

Description

  The present invention relates to a lighting apparatus mainly using a light emitting diode (LED) as a light source.

In the case of performing illumination over a relatively wide range, there has been provided a lighting fixture suitable for increasing the length by arranging a plurality of straight tube type lighting fixtures in a straight line (for example, see Patent Document 1). A straight tube type LED lighting apparatus according to Patent Document 1 includes a plurality of LEDs arranged on a substrate, a long cylindrical glass tube (cover member) having light transmittance that accommodates the substrate and the LEDs, and A pair of caps made of a transparent material tightly fitted to both ends of the glass tube are provided. A hole is provided in the cylindrical side wall of each of the pair of caps, from which a power cable and a connection cord are drawn. In addition to the cap being transparent, the power cable and connecting cord are pulled out from the side of the luminaire, allowing close placement with adjacent luminaires and no dark area in the area between the luminaires Seamless lighting is suitably realized.

Japanese Patent Laid-Open No. 2002-163907

  However, since the luminaire according to Patent Document 1 has a structure in which the connection cord connected to the substrate is simply pulled out from the hole formed on the side surface of the cap, when the connection cord is pulled, the connection cord and the substrate There is a problem that contact failure occurs due to load being applied to the connection part, and in the worst case, the connection cord peels off.

The present invention has been made in view of such problems, and provides a luminaire that can firmly fix the electric wire in the luminaire in which the electric wire for supplying power to the LED is led to the outside. For the purpose.

In order to solve the above problems, the present invention has the following configuration. That is, a board, an LED mounted on the board, a cylindrical cover that accommodates the board and the LED, and caps that are disposed at both ends of the cover, and the cap has an inner diameter of the cover. A small-diameter portion having a diameter that can be accommodated, and a large-diameter portion having a diameter larger than the inner diameter of the cover that is formed integrally with the small-diameter portion, the small-diameter portion being disposed in the cover, An illuminating device is provided in which an electric wire electrically connected to the LED is introduced into the cap from the small diameter portion and led out from the outer peripheral surface of the cap.

  Since this invention is comprised as mentioned above, in the lighting fixture from which the electric wire for electric power feeding to LED was derived | led-out outside, the said electric wire can be fixed firmly.

It is an external view of the lighting fixture which concerns on this invention. It is sectional drawing corresponding to the AA line of FIG. It is sectional drawing which shows the detail of the fitting part of the cap and cover of the lighting fixture which concerns on this invention. It is a figure which shows the connection state of the electric wire of the lighting fixture which concerns on this invention. It is a figure which shows the lighting system which arranged the lighting fixture which concerns on this invention in multiple numbers.

Hereinafter, embodiments of the present invention will be described in detail. However, it should be noted that the drawings are schematic and dimensional ratios and the like are different from actual ones. Therefore, specific dimensional ratios and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
The following embodiments are exemplifications for embodying the technical idea of the present invention. The embodiments of the present invention describe the material, shape, structure, arrangement, etc. of the components as follows. It is not something specific. The embodiments of the present invention can be implemented with various modifications without departing from the scope of the invention.

FIG. 1 is an external view of a lighting fixture 10 according to the present invention. FIG. 2 is a cross-sectional view corresponding to the line AA in FIG. The luminaire according to the present invention has a long substrate 15, a plurality of light emitting diodes (LEDs) 16 mounted in the longitudinal direction on the substrate 15, and translucency for housing the substrate 15 and the LEDs 16. A cylindrical cover 11, a cap 12 that seals both ends of the cover 11, an electric wire 13 that is electrically connected to the LED 16 and is led out from the cap 12, and a connector 14 that is provided at the tip of the electric wire 13. ing.

The luminaire 10 is turned on when the LED 16 emits light by electricity supplied from a power source via the connector 14 and the electric wire 13.

FIG. 3 is a cross-sectional view showing details of the fitting portion between the cap 12 and the cover 11. The cap 12 includes a small diameter portion 12b and a large diameter portion 12a having a larger diameter than the small diameter portion 12b. The large-diameter portion 12a is disposed below the small-diameter portion 12b, and is formed in a columnar shape having a step portion 12e. The cap 12 has a convex shape in cross-sectional view, and includes an upper surface 12g of the small diameter portion 12b, an outer peripheral surface 12d of the small diameter portion 12b, a lower surface 12f of the large diameter portion 12a, an outer peripheral surface 12c of the large diameter portion 12a, and a stepped portion. The outer shape is configured by 12e.

The cap 12 covers the end of the cover 11 in accordance with the leftward arrow shown in FIG. The small diameter portion 12b has a diameter that fits within the inner diameter of the cover 11, the large diameter portion 12a has a diameter larger than the inner diameter of the cover 11, and the small diameter portion 12b and the large diameter portion 12a are It is integrally formed. The small diameter portion 12b is disposed in the cover 11 so that the outer peripheral surface 12d of the small diameter portion 12b and the inner peripheral surface of the cover 11 are in contact with each other. The end portion 11 a of the cover 11 is in contact with the stepped portion 12 e of the cap 12, and the large diameter portion 12 a is exposed from the cover 11. The cap 12 seals both ends of the cover 11 so that the outer peripheral surface of the cover 11 and the outer peripheral surface 12c of the large diameter portion 12a are substantially flat.

FIG. 4 is a cross-sectional view of the lighting fixture 10 according to the present invention cut in the longitudinal direction, and shows a connection state of the electric wires 13. One end of the electric wire 13 is connected to the wiring on the substrate 15 and is electrically connected to the LED 16. A connector 14 is connected to the other end of the electric wire 13. As shown by the dotted line in FIG. 4, the electric wire 13 is introduced into the cap 12 from the upper surface 12 g of the small diameter portion of the cap 12, passes through the cap 12, and is led out from the outer peripheral surface 12 c of the large diameter portion. .

In addition, although the electric wire 13 can also be derived | led-out outside from the outer peripheral surface 12d of the small diameter part 12b, it is necessary to form the hole for making the electric wire 13 lead outside in the edge part of the cover 11.

Thus, since the contact area of the electric wire 13 and the cap 12 increases by comprising the electric wire 13 so that the inside of the cap 12 may be derived | led-out from the outer peripheral surface 12c along the lower surface 12f, the electric wire 13 is made stronger. Can be fixed to. Therefore, even if a force such as pulling from the outside is applied to the electric wire 13, the electric wire 13 is firmly fixed to the cap 12, so that a load is applied to the connection portion between one end of the electric wire 13 and the substrate 15. Can be suppressed.

The cap 12 is preferably formed of a light transmissive member. Since the cap 12 has translucency, the light emitted from the LED 16 can be emitted from the cap 12 to the outside of the lighting fixture 10. Thereby, the light extraction efficiency of the lighting fixture 10 can be improved.

FIG. 5 is a diagram illustrating a lighting system in which two lighting fixtures 10 are arranged in the vertical direction. The lengthening is realized by arranging the lower surface 12f of the cap 12 of the lighting fixture 10 so as to be adjacent to each other. Usually, when a plurality of lighting fixtures are arranged in the vertical direction in this way, a shadow is easily formed around the cap, but a shadow is formed by forming the cap 12 with a translucent member. Can be suppressed.

DESCRIPTION OF SYMBOLS 10 ... Lighting fixture 11 ... Cover 11a ... End part 12 ... Cap 12a ... Large diameter part 12b ... Small diameter part 12c, 12d ... Outer peripheral surface 12e ... Step part 12f ... Lower surface 12g ... Upper surface 13 ... Wire 14 ... Connector 15 ... Substrate 16 ... Light emitting diode (LED)

Claims (4)

A board, an LED mounted on the board, a cylindrical cover that accommodates the board and the LED, and caps that are disposed at both ends of the cover, and the cap fits within an inner diameter of the cover. A small-diameter portion having a large diameter, and a large-diameter portion having a diameter larger than the inner diameter of the cover formed integrally with the small-diameter portion, the small-diameter portion being disposed in the cover, and the LED The lighting apparatus is characterized in that an electric wire that is electrically connected to the lead is introduced into the cap from the small diameter portion and led out from the outer peripheral surface of the cap. The lighting apparatus according to claim 1, wherein the electric wire is led out from an outer peripheral surface of the large-diameter portion. The lighting apparatus according to claim 1, wherein the cap has translucency. The lighting system which lengthened the lighting fixture of any one of Claims 1 thru | or 3 by arranging in multiple vertical directions.

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