JPH1166920A - Ceiling fixed type lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide ceiling fixed type lighting system capable of being installed by relatively simple construction work without forming a large protrusion in room and facilitate maintenance and replacement. SOLUTION: This luminaire has a case 11 expanding in vertical direction, comprising a collar part being formed at a lower end rim of a cylindrical part opening at a lower end, and mounted to a ceiling wall with the cylindrical part being upwardly inserted via a hole formed on the ceiling wall, a translucent lamp cover 12 positioned downward of the case 11 and removably held on the case 11, a reflection plate 25 vertically partitioning an internal space of the case 11 provided by being fixed to the case 11 and vertically partitioning a space in the lamp cover 12 communicating therewith, an illumination lamp 13 disposed in a lamp disposition space 30 downward of the reflection plate 25, a lamp support member 34, and a lighting circuit device 45, and at least a part of the lamp support member 34 and lighting circuit device 45 is arranged in an upper space 40 upwardly of the reflection plate 25. A heat radiation through hole T is formed at the cylinder shaped part of the case 11 and on the reflection plate 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed ceiling lighting device fixed to a ceiling of a room in a building to illuminate the room.

[0002]

2. Description of the Related Art Conventionally, a lighting device has been widely installed on a ceiling to illuminate a room. As such a fixed ceiling lighting device, a so-called downlight lighting device and a ceiling light lighting device are known.

[0003] The downlight type illuminating device uses an opening formed in a ceiling wall to house a lighting apparatus including a light emitting lamp and a lighting circuit device in an upper space of the ceiling wall, that is, a space above the ceiling, and a light emitting section. Alternatively, this is preferable in that a large space occupying portion is not formed in the room because only the light emitting surface is disposed on the ceiling wall surface. On the other hand, in the ceiling light type lighting device, since the whole lighting device is installed on the surface of the ceiling wall, the installation work is easy and the interior decoration function can be exhibited.

[0004] However, all of the conventional ceiling-mounted lighting devices have the following problems. That is, the downlight type lighting device has a problem that a large-scale hole is required to be formed in a building structure called a ceiling wall according to the lighting device, so that a large-scale construction is required. .

[0005] On the other hand, the ceiling light type illuminating device has the advantage that the structural work such as forming an opening in the ceiling wall is unnecessary and the installation work is simple and good. Because it is arranged in the space, it is inevitable that a large space occupation part is formed in the room,
There is a problem.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made based on the above circumstances, and its object is to provide:
An object of the present invention is to provide a ceiling-mounted lighting device that can be installed by relatively simple construction, does not form a large space occupying portion in a room, and is extremely easy to maintain and replace.

[0007]

According to the present invention, there is provided a ceiling-fixed type lighting device comprising a tubular portion extending vertically and having an opening at a lower end formed with a flange protruding outward at a lower end edge thereof. A case mounted on the ceiling wall with the cylindrical portion inserted upward through a hole formed in the ceiling wall, and a translucent lamp cover positioned below the case and held by the case And a reflector fixedly provided in the case, a reflector for vertically dividing an inner space of the case and a space in a lamp cover communicating with the case, and a lamp arrangement space defined below the reflector. An illumination lamp, a lamp support member for supporting the illumination lamp, and a lighting circuit device. The lamp support member and the lighting circuit are provided in an upper space defined above the reflector. Small amount of equipment Ku and a part is characterized in that it is arranged.

[0008] In the above, it is preferable that the heat radiation through-hole is formed in the cylindrical portion of the case so that the upper space communicates with the space above the ceiling wall. In addition, it is preferable that a heat dissipation through-hole is formed in the reflector so that the lamp arrangement space communicates with the room space.

Further, a ballast constituting a circuit device for lighting a lighting lamp can be provided in the upper space, and a plurality of lighting lamps can be provided in the lamp placement space. .

[0010]

According to the ceiling-mounted lighting device of the present invention, substantially or part of the lamp placement space in which the lighting lamp is placed is located on the lower surface of the ceiling wall, and the lighting circuit device and the lamp supporting member are provided. At least a portion of the case is fixed to the ceiling wall and is disposed in the cylindrical portion of the case substantially located in the space behind the ceiling, so that it can be installed with relatively simple construction for the ceiling wall, and Thus, a lighting effect and appearance substantially similar to those of the downlight type lighting device can be obtained without forming a large space occupying portion, and maintenance of the lighting circuit device and replacement of the lighting lamp are extremely easy.
Further, since the heat radiation from the illumination lamp and the lighting circuit device can be satisfactorily dissipated by forming the heat radiation through-hole, a long service life can be obtained. Further, according to the configuration in which the lighting circuit device is disposed in the upper space, the entire lighting device is in a state of being supported by the case, so that the handling is facilitated.

[0011]

Embodiments of the present invention will be described below in detail. FIG. 1 is an explanatory longitudinal sectional view showing a configuration of a fixed ceiling type lighting device 10 according to one embodiment of the present invention mounted on a ceiling wall, and FIG. FIG. 3 is an explanatory view of a state viewed from below.
It is a top view which shows the inside of the cylindrical part of a case.

In the figure, 11 is a case, 12 is a lamp cover, 13 is an illumination lamp, and C is a ceiling wall. The case 11 is made of a metal such as stainless steel, for example, and extends vertically and has a cylindrical portion 1 having an opening 16 at a lower end.
5, a flange 17 bent outward from the lower edge opening edge of the cylindrical portion 15 and folded back into a U-shaped cross section;
And a fixed edge portion 18 formed on the leading edge of the front end. Reference numeral 19 denotes a bottom plate at the upper end of the cylindrical portion 15, and reference numeral 20 denotes a suspension bolt hole used as needed.

The cylindrical portion 15 of the case 11 is inserted upward through a hole H formed in the ceiling wall C, and the flange portion 1 is formed.
7 are fixed to the ceiling wall C around the hole H.
Is attached to the ceiling wall C in contact with the lower surface of the ceiling. The means of this mounting is not particularly limited,
In this example, a plurality of elastic leg pieces 22 each of which is opened downward are provided on an outer peripheral portion of the cylindrical portion 15, and a ceiling wall is formed by a lower end of the elastic leg pieces 22 and the fixed edge 18. By clamping C, the case 11 is fixed.

A circular reflector 25 is fixed to the flange 17 of the case 11 via screws 24. This reflector 2
5 has a form in which the center slightly bulges downward, and a bent edge 26 which is bent upward is formed on the periphery. The tip of the bent edge 26 and the lower surface of the ceiling wall C are connected to each other. A gap 28 is formed between them.

The lamp cover 12 has a dome shape made of a translucent material, and has a circular peripheral portion fitted and fixed to a bent edge portion 26 of the reflective plate 25 so as to be detachably supported by the reflective plate 25. ing. And, by this, the reflection plate 2
The lamp arrangement space 30 is formed by the lamp cover 5 and the lamp cover 12. In this example, the illumination lamps 13 each composed of a rod-shaped fluorescent lamp 33 are arranged in a left and right pair so as to be located in the lamp arrangement space 30. It is held by a lamp support member 34 extending from the reflection plate 25.

A board member 42 extending vertically, for example, is fixed to the bottom plate 19 of the tubular portion 15 by screws 41 in an upper space 40 defined by the reflection plate 25 and the inside of the case 11. 42, the fluorescent lamp 3
A ballast 45 composed of an inverter constituting the lighting circuit device of No. 3 is fixedly disposed by an appropriate support member 43.

Further, through holes T for heat radiation are formed in the cylindrical portion 15 of the case 11, the folded inner sleeve portion and the outer sleeve portion of the flange portion 17, and the outer peripheral portion of the reflection plate 25, respectively. The lamp arrangement space 30 has a gap 28 formed by the heat dissipation through hole T of the reflection plate 25.
The upper space 40 communicates with the indoor space through the gap 28 and the heat radiation through hole T of the flange portion 17, and the heat radiation of the cylindrical portion 15. It is in a state of communicating with the space behind the ceiling by the through hole T for use. When the suspension bolt hole 20 is not closed, the suspension bolt hole 20 may function as a heat dissipation through hole.

According to the above configuration, the light from the fluorescent lamp 33 in the lamp arrangement space 30 emits light from the lamp cover 1.
2, the interior of the room is illuminated. However, the portion protruding into the room is substantially only the lamp cover 12, and no large space occupying portion is formed. Since they are arranged close to each other, it is possible to obtain a lighting effect substantially similar to that of the downlight type lighting device, and the appearance is similar to that of the downlight type lighting device. This is because the cylindrical portion 15 of the case 11 is inserted through the hole H in the ceiling wall C and is located substantially in the space behind the ceiling, and the upper space 4 defined by the cylindrical portion 15 is formed.
This is because the ballast 45 constituting the lighting circuit device is disposed separately from the fluorescent lamp 33 within 0.

Further, since the cylindrical portion 15 of the case 11 may have a small diameter, the construction of the ceiling wall C necessary for mounting the fixed ceiling lighting device 10 is merely to form the small diameter hole H. Therefore, no large-scale construction is required and the cost is very low.

Further, through holes T for heat radiation are formed at appropriate places in the case 11 and the reflection plate 25 to form a space 3 for lamp placement.
By communicating 0 with the indoor space and communicating the upper space 40 with the indoor space and the space above the ceiling, the heat dissipation from the fluorescent lamp 33 and the heat dissipation from the ballast 45 can be reliably performed. Therefore, they are prevented from being overheated, the service life of the fluorescent lamp 33 and the ballast 45 is extended, and there is no danger of fire.

Since the ballast 45 is disposed in the upper space 40, the entire lighting device including the fluorescent lamp 33 is supported by the case 11, so that its handling is facilitated.

The fixed edge 1 which is a part of the case 11
According to the mounting method using the elastic leg piece 22 and the elastic leg piece 22, for example, when the elastic leg piece 22 is inserted into the hole H from below with the closed state, the elastic leg piece 22 is opened by its elasticity, so to speak, so to speak. Since the installation of the fixed ceiling lighting device 10 is achieved, it is extremely convenient. However, the mounting means is not limited to this.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described configuration, and various changes can be made. For example, FIG. 4 is an explanatory longitudinal sectional view showing a configuration of a ceiling-fixed lighting device 50 according to another embodiment mounted on a ceiling wall, and FIG. FIG. 6 is a plan view showing the inside of the cylindrical portion of the case.

In this example, the same parts as in the example of FIG. 1 are indicated by the same reference numerals. However, basically, the shape of the case 11, the shape of the reflector 25 and the illumination lamp are different, and the upper space 4
It is the same as the example of FIG. 1 except that the elements arranged in 0 are different. Specifically, case 11 is
The length of the cylindrical portion 15 in the vertical direction is short.
The reflection plate 25 has a concave shape in which the center portion protrudes upward in a truncated cone shape.
A ring-shaped fluorescent lamp 33A extending along the periphery of 5 and a rod-shaped fluorescent lamp 33B extending downward at the center are arranged in the lamp arrangement space 30. Note that a krypton bulb 33C may be used instead of the rod-shaped fluorescent lamp 33B.

A large part of a lamp support member 34 for supporting an illumination lamp is accommodated in an upper space 40 defined by the cylindrical portion 15 of the case 11 and the reflector 25, and a ballast is provided. 45 is fixed to the upper surface of the ceiling wall C.

In this embodiment, the same operation and effect as those of the above-described embodiment can be obtained. In particular, since the reflection plate 25 has a concave shape at the center, the illumination lamp (33)
B or 33C), and as a result, a lamp cover 12 having a small degree of swelling downward can be used. This is more similar to a downlight type lighting device.

In the present invention, the illumination lamp is not particularly limited, and various lamps can be used. In particular, when a high-luminance light source lamp is used, the illumination lamp itself is small, so that the illumination lamp is small. This is preferable because the entire apparatus can be reduced in size.

[0028]

According to the ceiling-mounted lighting device of the present invention,
Practically, part or all of the lamp arrangement space in which the illumination lamp is arranged is located on the lower surface of the ceiling wall, and at least a part of the lighting circuit device and the lamp support member are fixed to the ceiling wall to substantially cover the ceiling. Since it is located in the cylindrical part of the case located in the back space, it can be installed with relatively simple construction work on the ceiling wall, and there is no large space occupying part formed in the room, and it is practically The same lighting effect and appearance as those of the downlight type lighting device can be obtained, and the maintenance of the lighting circuit device and the replacement of the lighting lamp are very easy. Further, since the heat radiation from the illumination lamp and the lighting circuit device can be satisfactorily dissipated by forming the heat radiation through-hole, a long service life can be obtained. Further, according to the configuration in which the lighting circuit device is disposed in the upper space, the entire lighting device is in a state of being supported by the case, so that the handling is facilitated.

[Brief description of the drawings]

FIG. 1 is an explanatory longitudinal sectional view showing a configuration of a ceiling-fixed lighting device according to an embodiment of the present invention mounted on a ceiling wall.

FIG. 2 is an explanatory diagram of a state where a part of a lamp cover of the lighting device illustrated in FIG. 1 is removed and viewed from below.

FIG. 3 is a cross-sectional plan view showing the inside of a tubular portion of the case of the lighting device shown in FIG. 1;

FIG. 4 is an explanatory vertical sectional view showing a configuration of a ceiling-mounted lighting device according to another embodiment of the present invention.

FIG. 5 is an explanatory diagram of a state where a part of a lamp cover of the lighting device shown in FIG. 4 is removed and viewed from below.

6 is a cross-sectional plan view showing the inside of a cylindrical portion of the case of the lighting device shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ceiling fixed illumination device 11 Case 12 Lamp cover 13 Illumination lamp C Ceiling wall H hole 15 Cylindrical part 16 Opening 17 Flange 18 Fixed edge 19 Bottom plate 20 Hanging bolt hole 22 Elastic leg piece 24 Screw 25 Reflector plate 26 Flexure Edge 28 Gap 30 Lamp placement space 33 Fluorescent lamp 33A Ring fluorescent lamp 33B Rod fluorescent lamp 33C Krypton bulb 34 Lamp support member 40 Upper space 41 Screw 42 Board member 43 Support member 45 Stabilizer T Heat dissipation through hole 50 Ceiling-mounted lighting system

Claims (5)

[Claims] A flange portion extending vertically and having a lower end edge of a tubular portion having an opening at a lower end, the flange portion projecting outward;
A case mounted on the ceiling wall in a state where the cylindrical portion is inserted upward through a hole formed in the ceiling wall, and a translucent lamp positioned below the case and held by the case A cover, a reflector fixedly provided in the case, and a reflector for vertically dividing an internal space of the case and a lamp cover inner space communicating with the case, and a lamp arrangement space defined below the reflector. And a lamp support member and a lighting circuit device for supporting the illumination lamp, and an upper space defined above the reflection plate includes the lamp support member and the lighting circuit. A fixed ceiling lighting device, wherein at least a part of a circuit device is provided. 2. The fixed ceiling light according to claim 1, wherein a heat radiation through hole is formed in the cylindrical portion of the case, whereby the upper space communicates with the space above the ceiling wall. apparatus. 3. The fixed ceiling light according to claim 1, wherein a heat dissipation through-hole is formed in the reflection plate, whereby the lamp arrangement space communicates with the indoor space. apparatus. 4. The fixed ceiling type according to claim 1, wherein a ballast constituting a lighting circuit device of the illumination lamp is disposed in the upper space. Lighting equipment. 5. The fixed ceiling illumination device according to claim 1, wherein a plurality of illumination lamps are disposed in the lamp arrangement space.