JP5029992B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that allows a user to know the lifetime of the lighting fixture itself.

  Inverter-type lighting fixtures are generally equipped with a protection circuit that operates when the fluorescent lamp reaches the end of its life. This protection circuit detects the life of the fluorescent lamp from the lighting state, etc., and controls the operation of the fluorescent lamp based on the detection result (such as turning off the fluorescent lamp or reducing the output), so that the user I was informed.

Also, electrical components such as ballasts in the housing of the lighting fixture have a lifetime. Therefore, for example, regarding the life of the ballast, the life of the ballast mounted on the lighting fixture is checked in advance, and when the cumulative operation time of the lighting fixture monitored by the control unit reaches a predetermined time, the display means, etc. Has been proposed (see Patent Document 1).
JP 2006-236713 A

  However, electrical components such as ballasts and power supply terminal blocks themselves do not have a function of notifying themselves that they are at the end of their lives. Display means and the like were necessary for the notification of the life of the product. In addition, none of the electrical components themselves became a guide when the user replaced them.

  For this reason, the user has not been able to determine whether the failure of the lighting fixture other than the fluorescent lamp itself is due to a mere failure of the electrical component or the lifetime.

  In particular, the life of the inverter-type luminaire is largely due to the components used in the inverter circuit, except for the fluorescent lamps, and the circuit board has a remarkable deterioration over time in the components.

  Therefore, an object of the present invention is to provide a lighting fixture that allows the user to accurately know the life of the lighting fixture itself from the progress of aging of circuit boards and the like.

  The present invention relates to a lighting fixture including an appliance housing and an electrical component arranged in the appliance housing.

  In the lighting fixture according to the present invention, at least a part of the electrical component is exposed so as to be visible from the outside of the fixture housing. And the color reference | standard which can compare visually the change condition from the color at the time of manufacture of an electrical component visually was provided in the vicinity of this exposed part.

  According to the present invention, the user can accurately determine the replacement time of the lighting fixture itself. In addition, it is possible to suppress failures due to aging of the electrical components in the appliance housing.

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

  1 and 2 show an inverter type lighting fixture for a straight tube lamp as an example of the lighting fixture of the present invention. In particular, FIG. 1 is a perspective view of the luminaire according to the present embodiment, and FIG. 2 is a partial sectional view of the luminaire along the longitudinal direction of the lamp.

  As shown in these drawings, the fixture housing of the lighting fixture is configured by combining a main body 1 and a reflector 2. The main body 1 is attached to the indoor ceiling surface and is formed in a concave shape. Electrical components 3 such as ballasts and terminal blocks are attached to the concave bottom surface of the main body 1. Further, a support plate 5 that supports the lamp socket 4 is fixed to the side surfaces of both ends in the longitudinal direction of the main body 1, and the reflection plate 2 can be fixed to the support plate 5 with screws or the like. When the reflection plate 2 is fixed to the support plate 5, the electrical component 3 on the bottom surface of the main body 1 is covered with the reflection plate 2. The reflecting plate 2 is provided with a hole 2a through which the lamp socket 4 is passed and exposed to the outside.

  In the inverter type lighting fixture, an inverter circuit is mounted as the electrical component 3. Among the components of the inverter circuit, the circuit board shows a remarkable change due to aging. In particular, the color of the circuit board changes from its original color. For example, the white portion of FIG. 3 showing ocher at the beginning of manufacture changes to the shaded portion of FIG. 4 showing dark brown at the end of the life of the circuit board.

  In the present embodiment, an opening 1a is provided in the main body 1 as shown in FIG. 1 so that the user can directly see such discoloration, and a part of the inverter circuit board is provided through the opening 1a. It protrudes or is exposed outside the body.

  Although not shown, a part of the exposed inverter circuit board is provided with a color reference capable of visually comparing a change from the original color of the inverter circuit board. As the color reference, paint that does not change color due to ultraviolet rays, heat, or the like, or a seal having a surface layer that does not change the color of the base can be used.

  By using such a color reference as a guide, the user can accurately know the replacement time of the inverter circuit itself.

  According to the lighting fixture of the present embodiment described above, the user can accurately determine the necessity of replacement due to the lifetime of the electrical components such as the inverter circuit. In addition, it is possible to suppress failure due to aging deterioration of components used for the circuit board in the appliance housing.

  Although the embodiments of the present invention have been described with reference to the drawings as described above, the above-described embodiments are appropriately changed without being limited to the illustrated structures and shapes without departing from the technical idea of the present invention. Can be implemented. Of course, the present invention can be applied not only to the above-mentioned straight tube lamp luminaire but also to a ceiling type luminaire.

It is a perspective view which shows the inverter type lighting fixture for straight tube | pipe type lamps as an example of the lighting fixture of this invention. It is the partial cross section figure which cut | disconnected the lighting fixture along the lamp | ramp longitudinal direction of FIG. It is the figure which showed typically the hue at the time of manufacture of the inverter circuit board visually observed when discriminating the lifetime of the lighting fixture by a present Example. It is the figure which showed typically the hue at the end of the lifetime of the inverter circuit board visually observed when discriminating the lifetime of the lighting fixture by a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 1a of lighting fixture Opening 2 Reflecting plate 3 Electrical component 4 Lamp socket 5 Support plate 5a Hole

Claims (3)

In a lighting fixture comprising an appliance casing and an electrical component arranged in the appliance casing,
At least a part of the electrical component is exposed so that it can be seen from the outside of the appliance housing, and the exposed part of the electrical component can be visually compared with a change from the original color of the electrical component. A luminaire characterized by possible color standards.   The lighting fixture according to claim 1, wherein the fixture housing is provided with an opening for projecting or exposing the part having the color reference.   The lighting apparatus according to claim 1, wherein the part is a part of an inverter circuit board.

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