JPH04301305A - Lighting device - Google Patents

Abstract

PURPOSE:To facilitate replacement of a lamp built in a lighting device main unit of size mountable to a recessed box for 1-quantity use. CONSTITUTION:A light projection opening part 1b, provided in a front surface of a lighting device main unit 1 formed in size mountable to a recessed box for 1-quantity use, is formed such that a lamp 2, which can be lighted by a commercial power supply and mounted from a direction of this light projection opening part 1b, is at least partly protruded. As a result, holding this lamp 2 is facilitated in the case of replacement thereof.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device that is attached to a wall or the like and used as a night light.

0002

BACKGROUND OF THE INVENTION Conventionally, in this type of lighting device, the main body of the lighting device is formed to a size that can be installed in a two-piece recessed box, and it is difficult to secure enough space to replace the lamps that are lit by commercial power. However, in a lighting device main body 21 formed in a size that can be attached to a one-piece embedded box as shown in FIG. In order to reduce the number of lights, the lamp 24, which is lit by commercial power, had to be recessed to some extent, and it was not possible to secure enough space to replace the lamp 24.

[0003] Therefore, for example, Utility Model Application No. 60-1238
In Publication No. 85, the socket that holds the lamp is made rotatable, and the lamp is normally stored in the lighting device main body in a tilted state. When replacing the lamp, the socket is rotated and the lamp is is made to protrude from the light emitting opening so that it can be replaced.

However, in this prior art, the equipment configuration for making the socket rotatable becomes complicated, the number of manufacturing and assembly steps increases, and the product cost rises.

[0005]

[Problems to be Solved by the Invention] As described above, in conventional lighting devices, it is difficult to replace the lamp because the amount of protrusion of the illumination cover is reduced. This necessitates a device configuration such as a drawer, which poses a problem of complicating the structure.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a lighting device which has a simple structure, is easy to handle, and whose lamps can be easily replaced.

[0007]

[Means for Solving the Problems] In order to achieve the above object, a lighting device according to the present invention includes a lighting device main body formed in a size that can be attached to a single-use embedded box and having a light projection opening on the front side; a lamp that is installed in the lighting device body from the direction of the light projection opening and is lit by commercial power; It was formed.

[0008]

[Function] In this configuration, the light emitting opening of the lighting device main body is formed so that at least a part of the lamp lit by the commercial power source protrudes. This lamp can be easily replaced.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings.

1 to 6 show a first embodiment of the present invention,
Fig. 1 is an exploded perspective view of the lighting device, Fig. 2 is a circuit diagram of the lighting device, Fig. 3 is a perspective view of the lighting device assembled to a wall, and Fig. 4
is a perspective view of the lighting device main body, FIG. 5 is a front view of the lighting device main body, and FIG. 6 is a side sectional view of the lighting device.

(Structure) Reference numeral 1 in the figure is a lighting device main body, which consists of a base main body 1a and an upper cover 9, and 2
is a lamp that can be lit using commercial power (100V).

[0012] The lighting device main body 1 is formed in a size that can be attached to a one-piece embedded box (not shown),
A printed board 3 is disposed at the bottom of the base main body 1a of this lighting device main body 1, and ON-OFF-A
A UTO changeover switch 4, a dimming means 5, and a socket terminal 6 are mounted.

Further, an inner cover 7 is disposed above the printed circuit board 3 of the base body 1a, and the inner cover 7 includes:
A socket 8 is fixedly provided to hold the base 2a of the lamp 2 and to guide the base 2a to the socket terminal 6.

Furthermore, the open end of the base body 1a is closed with the upper cover 9 and fixed with screws. Further, a light emitting opening 1b is formed on the front surface of the upper cover 9,
This light emitting opening 1b is covered with a light emitting cover 10 attached to the upper end surface 9a of the upper cover 9. Note that the base 2a of the lamp 2 is connected to the socket 8 from the light projection opening 1b side.
It can be attached and fixed freely.

[0015] Also, the ON-O disposed on the printed circuit board 3
An operating lever 11 connected to the FF-AUTO changeover switch 4 passes through the covers 7 and 9 and is exposed from the illumination cover 10. Furthermore, the lighting cover 10
Auto-ON for illuminance sensor, human body detection sensor, etc.
-OFF sensor 12 is provided.

[0016] The single-piece embedded box is installed, for example, on a wall near the floor, and the lighting device main body 1 is fixed to this single-piece embedded box via a support (not shown), and a plate It is covered with 13.

[0017] Also, a hole 13 bored in this plate 13
a and the upper end surface 9a of the upper cover 9 exposed through the hole 13a are set to be substantially on the same plane. Further, the head of the lamp 2 exposed on the upper cover 9 slightly protrudes from the plate 13.

In addition, notches 9c are provided in the upper end surface 9a on both sides of the hole 9b through which the lamp 2 is inserted in the upper cover 9.
The light projection opening 1b is formed by this. As shown in FIG. 6, the head of the lamp 2 is exposed from this notch 9c, and therefore, as shown in FIG. 5, a space t1 for gripping the head of the lamp 2 can be secured.

On the other hand, as shown in FIG.
ON- connected to the commercial power supply (100V)
The OFF-AUTO changeover switch 4 is connected to the lamp 2, and the auto ON-OFF sensor 14 is connected to the AUTO terminal of the ON-OFF-AUTO changeover switch 4, and the lamp 2 is connected to the dimmer means 5. It is connected to the.

The capacitor C, triac TR, and resistors R2 and R3 of this dimming means 5 are connected in parallel, and further,
A resistor R1 is connected between the capacitor C and the triac TR, and a diac DI is connected between the resistors R2 and R3.
One terminal is connected to the triac TR, and the other terminal is connected to the gate of the triac TR.

(Function) Next, the function of the embodiment having the above configuration will be explained.

The operation lever 11 exposed from the illumination cover 10 attached to the upper cover 9 of the illumination device main body 1 is attached to a single-use recessed box (not shown) installed on a wall near the floor of a hallway or the like. ON-OFF-AUTO via
When the changeover switch 4 is set to ON, or
When set to AUTO and the auto ON-OFF sensor 14 becomes conductive, the lamp 2 is always lit in a dimmed state by the dimming means 5.

Note that the auto ON-OFF sensor 14
If it is an illuminance sensor, it becomes conductive when the surrounding illuminance falls to a predetermined value, and if it is a human body detection sensor, it becomes conductive when a person or the like approaches.

In the dimming means 5, when the voltage between the terminals of the capacitor C reaches the breakdown voltage of the diac DI, a trigger signal is output to the gate of the triac TR, and the triac TR is turned on. As a result, the commercial power source is controlled, and when the lamp 2 is in the lit state, the voltage and current conduction angle are constantly changed to adjust the light to a dimming rate of 50% (2.5 W for 5 W), for example.

[0025] Therefore, the lamp 2 lit by commercial power
Even if the lamp 2 is adopted, the amount of heat generated is small, and the lamp 2 can be assembled into the illumination device main body 1 formed in a size that can be attached to a one-piece embedded box. Further, since a transformer is not required, cost reduction can be achieved.

When replacing the lamp 2, the illumination cover 10 is removed, the head of the lamp 2 is grasped, and the lamp 2 is rotated in the direction in which it is removed. At this time, Figures 5 and 6
As shown in FIG. 2, the head of the lamp 2 is exposed through the light emitting opening 1b by the cutout portions 9c formed on both sides of the upper end surface 9a of the upper cover 9, so that the gap between the conventional lamp 2 and the upper end surface 9a is The space t2 is wider than the space t1 by the thickness of the upper end surface 9a, and the space t2 is wider than the space t1 of the lamp 2.
The lamp 2 can be easily held, and the lamp 2 can be replaced quickly.

(Second Embodiment) FIG. 7 is a side sectional view of a lighting device according to a second embodiment of the present invention.

In this embodiment, the upper end face 9a of the upper cover 9 constituting the lighting device main body 1, which is formed to a size that can be attached to a one-piece embedded box, is set slightly lower than the plate 13. Lamp 2 from light projection opening 1b
The illumination cover 10 is formed so that a part of it protrudes.
When removed, the entire hole 13a of the plate 13 becomes an effective area for removing the lamp 2, making it easier to replace the lamp 2.

[0029]

[Effects of the Invention] As explained above, according to the present invention,
It has a simple structure, is easy to handle, and the lamp can be easily replaced.

[Brief explanation of the drawing]

FIG. 1 to FIG. 6 show a first embodiment of the present invention, and FIG.
is an exploded perspective view of the lighting device

[Figure 2] Circuit diagram of lighting device

[Figure 3] Perspective view of the lighting device installed on the wall

[Figure 4
] Perspective view of the lighting device main body

[Figure 5] Front view of the lighting device main body

[Figure 6] Side sectional view of the lighting device

FIG. 7 is a side sectional view of a lighting device according to a second embodiment of the present invention.

[Figure 8] Side sectional view of a conventional lighting device

[Explanation of symbols]

1...Lighting device body 1b...Light projection opening 2...Lamp

Claims (1)

[Claims] Claim 1: A lighting device main body formed in a size that can be attached to a single embedded box and having a light emitting opening on the front surface, and a lighting device disposed so as to be attachable to the lighting device main body from the direction of the light emitting opening. a lamp that is turned on by a power source, and wherein the lighting device main body is formed with the light projection opening so that at least a portion of the lamp protrudes.