JP2012146464A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture that can dramatically improve workability.SOLUTION: The lighting fixture 10 includes a fixture body 11 installed on a ceiling face side, a power supply terminal table 13 installed at the lower side of the fixture body 11, a ballast 14 installed at the lower side of the fixture body 11, and a sub-chassis 12 which is installed on at least one of the power supply terminal table 13 and the ballast 14, and is installed on the fixture body 11.

Description

  The present invention relates to a lighting fixture installed on a ceiling surface using, for example, a straight tube type LED lamp having an LED unit as a light source.

2. Description of the Related Art Conventionally, there has been known a lighting fixture in which a power terminal block and a ballast are attached to the lower surface of a fixture body (see, for example, Patent Document 1).
In the luminaire described in Patent Document 1, a power line drawn from a ceiling surface is electrically connected to a power terminal block.

JP 2008-269996 A (FIG. 1, paragraph 0045)

The lighting apparatus described in Patent Document 1 includes a notification device that reliably notifies that a predetermined energization time has been reached at a predetermined time, and saves the trouble of mounting and wiring processing of the notification device.
In general, a lighting fixture has a longer life in the fixture body than a power supply component such as a power supply terminal block or a ballast. Therefore, only the power supply component may be replaced.
However, the lighting fixture described in Patent Literature 1 is attached to the fixture main body by screwing the power supply component from the ceiling surface side of the fixture main body.
Therefore, the lighting fixture described in Patent Document 1 has to remove the fixture main body from the ceiling surface when exchanging the power supply component, and the workability is extremely poor.
In addition, the luminaire described in Patent Document 1 has a relatively large power supply component attached to a relatively large instrument body, so that the instrument body is held upside down in the assembly process. Workability is poor.
Furthermore, the luminaire described in Patent Document 1 has poor workability of the ground wire, although it is necessary to ensure the ground wire when replacing the fluorescent lamp with the LED lamp.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting apparatus that can dramatically improve workability.

  The lighting fixture according to the present invention includes a fixture main body attached to the ceiling surface side, a power supply terminal block attached to the lower surface of the fixture main body, a ballast attached to the lower surface of the fixture main body, the power supply terminal block and the stability A sub-chassis attached to at least one of the vessels and attached to the instrument body.

  In the luminaire according to the present invention, the sub-chassis has a locking portion at a ground wire mounting portion.

  As for the lighting fixture which concerns on this invention, the said subchassis has a long hole in the attachment part to the said fixture main body.

  As for the lighting fixture which concerns on this invention, the said subchassis has a some hole in the attachment part to the said fixture main body.

  In the lighting fixture according to the present invention, the sub-chassis is attached only to the power terminal block.

  The lighting apparatus according to the present invention has an effect that workability can be dramatically improved.

The disassembled perspective view seen from diagonally downward of the lighting fixture of 1st Embodiment which concerns on this invention The bottom view of the subchassis of the lighting fixture of 1st Embodiment which concerns on this invention. The vertical sectional view of the lighting fixture of a 1st embodiment concerning the present invention. The bottom view of the subchassis of the modification of the lighting fixture of 1st Embodiment which concerns on this invention The disassembled perspective view seen from diagonally downward of the lighting fixture of 2nd Embodiment which concerns on this invention The bottom view around the power terminal block in the lighting fixture of 2nd Embodiment which concerns on this invention The side view around the power terminal block in the lighting fixture of 2nd Embodiment which concerns on this invention

Hereinafter, the lighting fixture of several embodiment which concerns on this invention is demonstrated with reference to drawings.
(First embodiment)
As shown in FIG. 1, the lighting fixture 10 according to the first embodiment of the present invention is a fixture main body 11 also serving as a first reflector, a sub chassis 12 attached to the fixture main body 11, and a sub chassis 12. Power terminal block 13 and ballast 14.
The lighting fixture 10 includes a second reflecting plate 15 attached to the fixture main body 11 and a pair of straight tube LED lamps 16 held on the lower surface of the fixture main body 11.
The lighting fixture 10 is applied to a base light installed on a ceiling surface (not shown).

The instrument body 11 is formed of a thin metal plate member having electrical conductivity, and has a reflective surface 19 on the lower surface of the top plate 17 and the inner surface of the peripheral plate 18.
The appliance body 11 has a pair of power supply side sockets 21 attached to the lower surface of one end of the top plate 17 via a power supply side socket base 20.
The instrument body 11 has a pair of ground side sockets 23 attached to the lower surface of the other end of the top plate 17 via a ground side socket base 22.
The appliance main body 11 is mechanically attached to the power supply side socket 21 and the ground side socket 23 with the straight tube type LED lamp 16 electrically connected thereto.

The subchassis 12 is formed of a thin metal plate member having electrical conductivity similar to that of the instrument body 11, and the longitudinal direction of the instrument body 11 includes a top plate 24, a bottom plate 25, and a pair of side plates 26. It is formed in a substantially square shape having a length.
The sub-chassis 12 has a long hole 29 in the longitudinal direction of the instrument main body 11 that is attached to the instrument main body 11 by screwing a screw 28 into a screw hole 27 provided in the top plate 17 of the instrument main body 11 near both ends of the top plate 24. .
Therefore, since the attachment position of the subchassis 12 can be changed in the longitudinal direction of the instrument body 11 through the long hole 29, the attachment pitch to the instrument body 11 can be increased.
Before the sub-chassis 12 is attached to the instrument body 11, the power terminal block 13 is attached to the lower surface of the bottom plate 25 by screwing screws 30 from above the bottom plate 25. The ballast 14 is also attached to the lower surface of the bottom plate 25 in the same manner as the power terminal block 13.

The second reflector 15 is formed in a V shape in a vertical sectional view and has a length in the longitudinal direction of the instrument body 11.
The second reflecting plate 15 has a V-shaped reflecting surface 31, is deformed so as to reduce the interval on the side of the instrument body 11, and is then attached to the instrument body 11, whereby the sub chassis 12 and the power terminal block 13. The ballast 14 is covered so as not to be directly viewed from the lower surface.

The straight tube type LED lamp 16 is electrically connected to a base 33 at one end of a glass tube 32 having a substantially circular cross section to a pair of power supply side terminal receptacles (not shown) housed in the power supply side socket 21. Each has a pair of power supply side cap pins 34.
The straight tube type LED lamp 16 has a single ground-side base pin that is electrically connected to a base 35 at the other end of the glass tube 32 to a ground-side terminal receiver (not shown) housed in the ground-side socket 23. 36.

The straight tube type LED lamp 16 incorporates an LED unit 39 having an LED substrate 38 in which a plurality of LEDs 37 are mounted in the longitudinal direction of the instrument body 11 in a glass tube 32.
In the straight tube type LED lamp 16, a direct current supplied from the power supply side socket 21 flows from the power supply side base pin 34 to the ground side socket 23 through the ground side base pin 36.
In the straight tube type LED lamp 16, a direct current is supplied to a printed circuit (not shown) included in the LED substrate 38 and the LED unit 39 emits light.
In the straight tube type LED lamp 16, the irradiation range toward the irradiation target is 1/2 to 2/3 with respect to the entire circumference.
The straight tube type LED lamp 16 is not limited to one having a pair of power supply side cap pins 34 in the cap 33 at one end and a single ground side cap pin 36 in the cap 35 at the other end. .
For example, the base 33 at one end has three power supply side base pins 34, the base 35 at the other end has two ground side base pins 36, or the base 33 at one end has two power supplies. It may have a side cap pin 34 and may have two ground side cap pins 36 on a cap 35 at the other end.

As shown in FIG. 2, the subchassis 12 has a locking portion 41 at the attachment portion of the ground wire 40. The ground line 40 is electrically connected to the ground side socket 23 and is grounded to the outside through the ground side socket 23.
The locking portion 41 is partly located near the ground-side socket 23 on the bottom plate 25 of the sub chassis 12 at a position where the ground wire washer 42 electrically connected to the ground wire 40 is screwed into the bottom plate 25 by the screw 43. Is formed by cutting up and down.
Accordingly, the screw 43 is screwed into the bottom plate 25 on the lower surface of the instrument body 11 so that the earth conduction of the straight tube type LED lamp 16 can be easily ensured through the subchassis 12, and the screw screwed into the bottom plate 25 via the ground wire washer 42. 43 can be prevented from loosening.

As shown in FIG. 3, the subchassis 12 has a jig hole 44 at a position corresponding to the power terminal block 13 on the top plate 24.
The jig hole 44 is inserted with a jig (not shown) when the power terminal block 13 is attached in advance to the bottom plate 25 of the sub chassis 12 with the screw 30 in the assembly process of the sub chassis 12.
The subchassis 12 has a power line insertion hole 45 at a predetermined position on the bottom plate 25. Therefore, the power line 46 is drawn through the power line hole 47 provided in the instrument body 11, the power line hole 48 provided in the top plate 24 of the sub chassis 12, and the power line insertion hole 45.
The power line 46 drawn from the power line insertion hole 45 is electrically connected to the power terminal block 13.
Thus, since the subchassis 12 has a substantially rectangular shape, the screw 30 and the power supply line 46 can be accommodated in the internal space.

In such an illuminating device 10, in the assembly process, the power terminal block 13 is attached to the lower surface of the bottom plate 25 in advance by screwing screws 30 from above the bottom plate 25 through the jig holes 44 of the top plate 24 of the sub chassis 12. It is done.
Next, the screw 28 is screwed into the screw hole 27 of the instrument body 11 through the long hole 29 of the subchassis 12 to which the power supply terminal block 13 and the ballast 14 are attached to the lower surface. It is attached.
Therefore, when replacing the power supply terminal block 13 and the ballast 14, it is not necessary to remove the instrument body from the ceiling surface unlike the conventional one, and only the subchassis 12 needs to be removed. it can.

  As described above, according to the lighting fixture 10 of the first embodiment, when replacing the power supply terminal block 13 and the ballast 14, it is not necessary to remove the fixture main body from the ceiling surface unlike the conventional one. Since only the chassis 12 needs to be removed, workability can be dramatically improved.

Moreover, according to the lighting fixture 10 of 1st Embodiment, since the subchassis 12 has the locking part 41 in the attachment part of the ground wire 40, the screw | thread 43 screwed into the baseplate 25 via the ground wire washer 42 is provided. Looseness can be prevented.
Moreover, according to the lighting fixture 10 of 1st Embodiment, the earth conduction | electrical_connection of the straight tube | pipe type LED lamp 16 can be simply ensured through the subchassis 12 by screwing the screw 43 in the bottom plate 25. FIG.

  Moreover, according to the lighting fixture 10 of 1st Embodiment, since the subchassis 12 has the long hole 29 in the attachment part to the instrument main body 11, the attachment position of the subchassis 12 is changed to the longitudinal direction of the instrument main body 11. It is possible to increase the mounting pitch to the instrument body 11.

As shown in FIG. 4, the modification of the lighting fixture 10 includes a plurality of screws for screwing screws 28 into screw holes 27 provided in the top plate 17 of the fixture body 11 near both ends of the top plate 24 of the sub chassis 12. A hole 48 is provided in parallel.
Therefore, since the attachment position of the subchassis 12 can be changed in the longitudinal direction and the short direction of the instrument body 11 through a pair of selected screw holes 48 among the plurality of screw holes 48, the attachment to the instrument body 11 is possible. The pitch can be increased.
At this time, the screw hole 48 in a diagonal position among the plurality of screw holes 48 can also be used. Then, the mounting pitch can be further increased.

  According to the lighting fixture 10 of this modification, the mounting position of the subchassis 12 is set to the longitudinal direction and the short side of the fixture body 11 through a pair of screw holes 48 selected from the plurality of screw holes 48 of the subchassis 12. Since it can change to a direction, the attachment pitch to the instrument main body 11 can be increased.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
Note that, in the following second embodiment, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, or the description is simplified. Omitted.

As shown in FIG. 5, the lighting fixture 50 according to the second embodiment of the present invention includes a subchassis 51 that is attached only to the power terminal block 13.
The power terminal block 13 is attached to the lower surface of the bottom plate 52 by screwing screws 30 into the sub chassis 51 from the upper surface of the bottom plate 52.
As shown in FIGS. 6 and 7, the subchassis 51 has a pair of flanges 53 above the bottom plate 52 via a stepped portion, and the elongated holes 54 are formed in the flange 53 in the longitudinal direction of the instrument body 11, respectively. Have.
The sub-chassis 51 is attached to the instrument body 11 by attaching the screw 28 to the screw hole 27 of the instrument body 11 through the long hole 54 after the power terminal block 13 is previously attached to the lower surface of the bottom plate 52 in the assembly process.
Therefore, the subchassis 51 can be miniaturized, so that versatility can be enhanced.

  According to the lighting fixture 50 of 2nd Embodiment, since the subchassis 51 is attached only to the power terminal block 13, the subchassis 51 can be reduced in size and versatility can be improved.

  In the lighting fixture of the present invention, the fixture body, straight tube LED lamp, second reflector, power supply terminal block, ballast, etc. are not limited to the above-described embodiments, and appropriate modifications, improvements, etc. Is possible.

DESCRIPTION OF SYMBOLS 10,50 Lighting fixture 11 Appliance main body 12,51 Subchassis 13 Power supply terminal block 14 Ballast 29,54 Long hole 40 Ground wire 41 Loosening part 48 Screw hole (hole)

Claims (5)

An instrument body attached to the ceiling surface side;
A power terminal block attached to the lower surface of the instrument body;
A ballast attached to the lower surface of the appliance body;
A lighting fixture comprising: a sub-chassis attached to at least one of the power supply terminal block and the ballast and attached to the fixture main body. The lighting fixture according to claim 1,
The sub-chassis is a lighting fixture having a locking portion at a ground wire attachment portion. The lighting fixture according to claim 1 or 2,
The sub-chassis is a lighting fixture having a long hole in a mounting portion to the fixture main body. The lighting fixture according to claim 1 or 2,
The sub-chassis is a lighting fixture having a plurality of holes in a mounting portion to the fixture body. In the lighting fixture of any one of Claims 1 thru | or 4,
The sub-chassis is a lighting fixture that is attached only to the power terminal block.

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