JPH10177809A - Direct type ceiling light type luminare - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a direct type ceiling light type liminaire which is fit for a thin-type luminaire and unapt to cause a malfunction to a man detecting sensor. SOLUTION: A square rosette body 2 which is a turn-hook type is provided, protruding from the ceiling 1. A luminiare body 3 detadchably joined with the rosette body 2 is provided. The luminaire body 3 provides a rosette cap 8 that supports the entire luminaire body 3 attached/detached through a wiring lip from the lower side of the rosette body 2 to/from the rosette body 2, a radiating part 4 with a light bulb 42 distributing light downward, and a man- detecting sensor 7 which monitors downward by infrared rays. The radiating part 4 is positioned toward one side of the luminaire body 3. The man-detecting sensor 7 is positioned toward the other side of the luminaire body 3. The rosette body 2 and the rosette cap 8 are positioned about the center of the luminaire body 3 to curb the heat movement to the man-detecting sensor 7 from the radiating part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted lighting fixture with a human detection sensor, which is detachably mounted on a ceiling via a hanging ceiling rosette.

[0002]

2. Description of the Related Art In a ceiling-mounted lighting apparatus of this type, a human detection sensor is disposed directly below a hanging ceiling closet. In this case, the human detection sensor unit is located at a low place. For this reason, the height of the device is increased, and it is difficult to provide a thin device. On the other hand, because the heat emitted from the light-emitting part, especially the light-emitting part mainly composed of an incandescent light bulb, does not easily reach the human detection sensor part,
This is advantageous in terms of preventing erroneous detection.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ceiling-mounted lighting device which is suitable for a thin-shaped device and in which a human detection sensor is unlikely to malfunction.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a rotating hook-shaped rectangular rosette body fixed to a ceiling surface so as to protrude downward therefrom. A tool body detachably connected to the rosette body; The appliance body is detachably attached to the rosette body from below the rosette body via a wiring connection blade to support the entire appliance body, and a light emitting unit to which an incandescent light bulb is attached and light is distributed downward. And a human detection sensor unit for monitoring the lower side by infrared rays. The light emitting unit is arranged near one end of the device main body. The human detection sensor unit is arranged near the other end of the device main body. The rosette body and the rosette cap are disposed at a substantially central portion of the device main body so as to limit heat transfer from the light emitting portion to the human detection sensor portion.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. The illustrated ceiling-mounted lighting fixture according to the present invention is a rotating hook-shaped rectangular rosette body 2 fixed to a ceiling surface 1 so as to protrude downward therefrom.
Is provided. An instrument body 3 is detachably connected to the rosette body 2. The instrument body 3 is a rosette body 2
A rosette cap portion 8 which is attached to and detached from the lower side of the rosette body 2 via a wiring connection blade to support the entire instrument body 3; a light emitting portion 4 to which an incandescent light bulb 42 is attached and which distributes light downward; And a human detection sensor unit 7 for monitoring the lower side. The light emitting unit 4 is arranged near one end of the device main body 3. The human detection sensor unit 7 is arranged near the other end of the device main body 3. The rosette body 2 and the rosette cap portion 8 are arranged at a substantially central portion of the device main body 3 so as to restrict heat transfer from the light emitting portion 4 to the human detection sensor portion 7. The preferred arrangement of the rosette body 2 and the rosette cap portion 8 is such that the long side of the rosette cap portion 8 faces the light emitting portion 4 and the human detection sensor portion 7 as shown. The light emitting unit 4 includes a socket 5 and a reflection shade 6. Although the reflection shade 6 is a light distribution control member, in relation to the human detection sensor unit 7, the heat spread in the light emitting unit 4 is restricted, and the possibility that the heat reaches the human detection sensor unit 7 and malfunctions may occur. Take the role of mitigating. 9 is an outer cover. Reference numeral 10 denotes a set screw for fixing the outer cover 9 to the instrument body 3. The outer cover 9 has a hole 94 corresponding to the light emitting unit 4 and a hole 97 corresponding to the human detection sensor unit 7.

[0006]

According to the present invention, a human detection sensor is disposed at a position near the end of the device main body, and does not overlap with the closet body and the closet cap. For this reason, a thin instrument is obtained. In addition, although the human detection sensor is located at a high place, a rosette body and a rosette cap intervene with the light-emitting part to limit heat transfer from the light-emitting part to the human detection sensor. There is little worry about malfunction.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing a ceiling-mounted lighting fixture according to the present invention.

FIG. 2 is a bottom view showing the device main body.

[Explanation of symbols]

1: ceiling surface, 2: square rosette body, 3: appliance body, 4: light emitting section, 42: incandescent lamp, 8: rosette cap section, 7: human detection sensor section

Claims (1)

[Claims] 1. A rotary hook-shaped rectangular rosette body (2) fixed to a ceiling surface (1) so as to protrude downward therefrom.
And a device main body (3) detachably connected to the rosette body (2), wherein the device main body (3) is disposed below the rosette body (2) with respect to the rosette body (2). A rosette cap part (8) which is attached and detached via a wiring connection blade and supports the whole of the appliance main body (3); a light emitting part (4) which mounts an incandescent lamp (42) and distributes light downward; A human detection sensor section (7) for monitoring the side; the light emitting section (4) is disposed closer to one end of the tool body (3); and the human detector is closer to the other end of the tool body (3). A sensor part (7) is arranged, and the rosette body (2) and the rosette cap part (8) are so arranged that heat transfer from the light emitting part (4) to the human detection sensor part (7) is restricted. In the appliance body (3) Headlining luminaires, characterized in that arranged in Ruhobo central portion.