JPH10188657A - Recessed luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily secure the distance between a lamp part and a ballast box and enhance constructibility. SOLUTION: This luminaire includes a lamp part 1, enclosing a light source and mounted on the ceiling by being inserted into a recessed hole provided in the ceiling, and a ballast box 2 connected to the lamp part 1 by a flexible pipe 3 and installed on the back of the ceiling. A pair of flexible pipes 3 are provided at the side ends of the opposite faces 1c, 2d of the lamp part 1 and the ballast box 2, and a terminal block 6 to which a power cord is connected is provided on the opposite face 2d of the ballast box 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded lighting fixture.

[0002]

2. Description of the Related Art FIGS. 5 to 7 show a conventional recessed lighting device.
And a stabilizer box 2 and a flexible pipe 3.

The lamp unit 1 accommodates a discharge lamp, which is a light source (not shown), and is opened at one side, and is inserted into an embedded hole 4 a provided in the ceiling 4. It is designed to be attached to the ceiling 4. In addition, lamp part 1
One side of the side wall 1a is provided with a small opening 1b, and one flexible pipe 3 is attached.

The ballast box 2 has a substantially box-like shape and is provided with leg pieces 2a protruding laterally on both sides of a lower end. A ballast (not shown), which is a lighting device for lighting a discharge lamp, is provided therein. It is to be accommodated. An opening 2c is provided on one side of the side wall 2b, and a flexible pipe 3 through which the wiring in the instrument is inserted is attached, and a terminal block to which the power supply line 5 is connected is provided on the inner side of the other side wall. 6 are attached. The flexible pipe 3 is flexible and configured to have a length sufficient to allow the lamp unit 1 and the ballast box 2 to be separated from each other by a predetermined distance when stretched straight. ing.

[0005] The recessed lighting fixture thus constructed is
At the time of construction, the power supply line 5 is pulled out from the underside of the ceiling 4 to the underside of the ceiling 4, and the lamp unit 1 is lifted up from the underside of the ceiling 4. First, the power is supplied to the terminal block 6 provided on the other side of the ballast box 2. The ballast box 2 is inserted from the terminal block 6 side into the recessed hole 4a of the ceiling 4 and installed behind the ceiling, and then the lamp part 1 is inserted into the recessed hole 4a, Mounting was performed by fixing the lamp unit 1 to the ceiling 4 with the surfaces of the unit 1 and the ballast box 2 on the side where the flexible pipe 3 was connected facing each other.

FIGS. 8 and 9 show another conventional recessed lighting device. The difference from the conventional recessed lighting device is that the flexible pipe 3 is replaced with the lamp unit 1 and the lamp unit 1 is stable. A rigid arm 7 having rigidity and rotatably supported vertically at a central portion between the lighting box 2 is supported at both ends by the lamp unit 1 and the ballast box 2 so as to be vertically rotatable. At the same time, the direction in which the rigid arm 7 attached to the lamp unit 1 is regulated so that the rigid arm 7 on the side attached to the lamp unit 1 is oriented substantially perpendicular to the side wall 1a of the lamp unit 1. Control spring 8
The other points are substantially the same as those of the above-described conventional embedded lighting fixture.

[0007]

However, in the conventional embedded luminaire constructed as described above, the lamp unit 1 and the ballast box 2 are formed by a single flexible pipe 3 having flexibility. FIG. 6
As shown in (a), the distance between the lamp unit 1 and the ballast box 2 is short due to the bending of the flexible pipe 3 and the temperature of the ballast and the like housed inside the ballast box 2 indicates the temperature of the lamp unit 1. There is a problem that the temperature of the ballast or the like accommodated in the ballast box 2 may rise due to the influence thereof, or the temperature of the ballast or the like housed inside the ballast box 2 may be reversed as shown in FIG. There was a point.

Further, since the terminal block 6 is provided on the side wall of the ballast box 2 on the side opposite to the lamp unit 1, the ballast box 2 is temporarily placed on the upper surface of the ceiling 4 at the time of construction and the power is supplied to the terminal block 6. Line 5 cannot be connected, and
It is necessary to connect the power supply line 5 to the terminal block 6 under the ceiling 4 while holding the lamp unit 1 and the ballast box 2 in hand. Moreover, the terminal block 6 is located on the opposite side of the ballast box 2 from the lamp unit 1, and the power line 5 is pulled out below the ceiling 4, and the ballast box is connected to the terminal block 6. 2, the length of the power supply line 5 also needs to be long.

Further, in another conventional embedded lighting fixture, a rigid arm 7 composed of a combination of rigid members is used instead of the flexible pipe 3, so that the stabilizer box 2 is used. Although the lamp unit 1 is not turned over, when the lamp unit 1 is inserted into the embedding hole 4a, there is little freedom in the posture of the lamp unit 1 with respect to the ballast box 2 placed behind the ceiling. There is a problem that the workability when inserting into the embedding hole 4a is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a recessed lighting fixture which can easily secure a distance between a lamp part and a stabilizer box and has good workability. Is to do.

[0011]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, a light source is housed therein and inserted into an embedded hole provided in a ceiling. In a recessed lighting device comprising a lamp part that is mounted on the ceiling and a stabilizer box connected to the lamp part and a flexible pipe and installed behind the ceiling, the flexible pipe includes the lamp part. The ballast box is characterized in that a pair of ballast boxes are provided on both side ends of the opposing surfaces.

According to the second aspect of the present invention, the first aspect is provided.
In the recessed lighting device described above, a terminal block to which a power supply line is connected is provided on a side of the ballast box facing the lamp unit.

[0013]

1 to 3 show an embodiment of a recessed lighting device according to the present invention. The recessed lighting device includes a lamp unit 1 and a ballast box 2. , And the flexible pipe 3.

The lamp unit 1 is not particularly limited, but has a substantially box-like shape with a light-emitting opening at the bottom, and includes a plurality of light sources 9 mounted inside a socket (not shown). And the ceiling lamp 4 is accommodated.
Is mounted on the ceiling 4 so that the lower end thereof is substantially flush with the ceiling 4. On one side of the side wall 1a of the lamp unit 1 on which the socket is provided, openings are provided near both side ends, and one end of each of the flexible pipes 3 is attached. Is provided as an opposing surface 1c opposing the ballast box 2.

The ballast box 2 has a substantially box-like shape and is provided with leg pieces 2a protruding laterally on both sides of a lower end, and has a ballast (not shown) as a lighting device for lighting a discharge lamp inside. ) Is to be accommodated. Also, two openings 2c are provided on one side of the side wall 2b near both side ends,
Flexible pipes 3 respectively attached to the lamp part 1
The other end side is attached, and one side wall 2b on which the flexible pipe 3 is provided is an opposing surface 2d opposing the lamp unit 1. The opposing surface 2d is provided with, for example, a power supply line hole 2e substantially at the center thereof, and a terminal block 6 to which the power supply line 5 is connected is mounted on the inner side of the ballast box 2.

The flexible pipe 3 is flexible, and has a sufficient length to allow the lamp unit 1 and the ballast box 2 to be separated from each other by a predetermined distance in a state of being extended substantially linearly. An electric wire (not shown) in the device for connecting a component on the lamp unit 1 side such as a socket and a component on the ballast box 2 side such as a ballast or terminal block 6 is inserted therein. Has been. This flexible pipe 3 has a length L1
However, if the dimension L2 between both ends of the opposing surface 2d of the ballast box 2 is 300 mm or more, for example, the length is set shorter. In addition, the electric wire in the appliance is divided into two so that it can be connected to a plurality of sockets arranged in the lamp unit 1 from a side close to each other, and is close to the socket to be connected among the two flexible pipes 3. It is wired so as to pass through the inside of the flexible pipe 3 on the side that has been set.

[0017] The embedded lighting fixture thus configured is
At the time of construction, first, the ballast box 2 is inserted into the back of the ceiling from the embedding hole 4a provided in the ceiling 4, placed on the back of the ceiling, and the lamp unit 1 is hung by the flexible pipe 3. Then, the power supply line 5 is connected to the terminal block 6 provided on the embedded hole 4a side of the ballast box 2. Then, the lamp part 1 is inserted in accordance with the embedding hole 4a,
The ballast box 2 is pushed by the flexible pipe 3 so as to be separated from the embedding hole 4a, and the lamp unit 1 is
The mounting is performed by fixing to the. At this time, the lamp unit 1 and the ballast box 2 whose both ends are connected by the flexible pipes 3 oppose each other at opposing surfaces 1c and 2d to which the flexible pipes 3 are connected.

With such a configuration, in the recessed illuminating apparatus according to the present embodiment, two lamps are provided near both side ends of the opposing surfaces 1c and 2d of the lamp unit 1 and the ballast box 2, respectively. The flexible pipe 3 is attached, and the two flexible pipes 3 are hardly bent at the same time so that the lamp unit 1 and the ballast box 2 are close to each other. It is easy to secure a predetermined distance at which the influence of temperature, which is the length of 3, is small. In addition, since the flexible pipes 3 are attached near both end portions of each of the opposing surfaces 1c and 2d, there is little possibility that the flexible pipes 3 are twisted and crossed, and the ballast box 2 is placed behind the ceiling. It becomes difficult to turn over in the state. For this reason, the temperature of the components housed in the ballast box 2 does not rise abnormally due to an abnormal mounting state. Further, as shown in FIG. 4, although it is conceivable to mount the ballast box 2 upside down on the lamp unit 1 and construct the ballast box 2, in this state, the ballast box 2 protrudes laterally from the facing surface 1c of the lamp unit 1. The flexible pipe 3 cannot be installed by hitting the opening end of the embedding hole 4a, and the risk of such erroneous installation is reduced. Furthermore, the terminal block 6 is provided on the side 2d of the ballast box 2 facing the lamp unit 1, and when the ballast box 2 is placed above the ceiling and the lamp unit 1 is temporarily suspended, the terminal block 6 Since the base 6 is on the facing surface 2d side, which is the side visible from the embedding hole 4a side, the work of connecting the power supply line 5 to the terminal block 6 can be performed in that state, and the workability of construction is improved, and the embedding is improved. Since there is no need to connect the power line 5 below the hole 4a, the power line 5
Can be shortened. Further, since the electric wire in the appliance, which is the wiring between the lamp unit 1 and the ballast box 2, is divided into two, noise can be reduced.

In this embodiment, the light source 8 has a plurality of light sources, and the light source 8 is a single-ended fluorescent lamp 8a. However, the present invention is not limited to this, and the present invention has one light source. In this case, the electric wire in the appliance may pass through only one of the flexible pipes, and the light source may be a straight tube fluorescent lamp or another discharge lamp.

[0020]

As described above, according to the first aspect of the present invention, two flexible pipes are provided near both end portions of the opposing surfaces of the lamp unit and the ballast box. The two flexible pipes are difficult to bend at the same time so that the lamp part and the ballast box are close to each other, and the distance between the lamp part and the ballast box is affected by the temperature, which is the length of the flexible pipe. Is more easily secured at a predetermined distance where the distance is reduced. In addition, since the flexible pipes are attached near both ends of the opposing surfaces of the lamp unit and the ballast box, there is little possibility that the flexible pipes will intersect, and the ballast box is placed above the ceiling. This makes it difficult to turn over and reduces the risk of erroneous construction. For this reason, the temperature of the components accommodated in the ballast box does not rise abnormally due to an abnormal mounting state.

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects of the described invention, the terminal block is provided on the surface of the ballast box facing the lamp unit, and the ballast box is placed above the ceiling and the lamp unit is temporarily suspended, and the terminal is Because the stand is on the opposite surface side that is visible from the embedding hole side,
In that state, the work of connecting the power supply line to the terminal block can be performed, and the workability of the construction is improved, and it is not necessary to connect the power supply line below the recessed hole. Can be shortened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a recessed lighting device of the present invention.

FIG. 2 is a bottom view of the same.

FIG. 3 is a perspective view showing a state during the construction of the above.

FIG. 4 is a side view showing a state where the ballast box is overturned on the lamp unit.

FIG. 5 is a perspective view showing a conventional recessed lighting device.

6 (a) is a perspective view showing a state where the lamp unit and the ballast box are close to each other, and FIG. 6 (b) is a perspective view showing a state where the ballast box is turned upside down.

FIG. 7 is a schematic view showing a construction process of a conventional embedded lighting fixture.

FIG. 8 is a perspective view showing another conventional embedded lighting fixture.

FIG. 9 shows a construction state in which the ceiling is shown as a cross-sectional state, in which (a) is a side view of a state in which a stabilizer box is placed above the ceiling, and (b) is a lamp part in an embedding hole. The front view at the time of insertion, (c) is a front view of the completed construction state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp part 1a Opposing surface 2 Ballast box 2a Opposing surface 3 Flexible pipe 4 Ceiling 4a Embedding hole 5 Power line 6 Terminal block 8 Light source

Claims (2)

[Claims] 1. A lamp unit in which a light source is housed and which is inserted into an embedding hole provided in a ceiling and mounted on the ceiling, and a lamp unit connected to the lamp unit by a flexible pipe and installed in the ceiling. An embedded lighting device comprising a lighting box and a ballast box, wherein a pair of the flexible pipes are provided on both side end sides of the respective opposing surfaces of the lamp unit and the ballast box. lighting equipment. 2. The recessed lighting device according to claim 1, wherein a terminal block to which a power supply line is connected is provided on a surface of the ballast box facing the lamp unit.