JP5842096B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that is mechanically coupled to and electrically connected to a lighting duct laid on a ceiling or the like.

2. Description of the Related Art Conventionally, a lighting fixture that is movably attached to a lighting duct laid on a ceiling or the like is known (see, for example, Patent Document 1).
As shown in FIG. 9, in the lighting fixture 100 of patent document 1, it attaches to the lighting duct (illustration omitted) laid by the ceiling etc. so that a movement is possible, for example, illuminates the downward direction.
The luminaire 100 includes a power supply box 102 that houses a power supply device 101 and is movably attached to a lighting duct. Below the power supply box 102, a lamp 103 that accommodates a light source (not shown) is attached so that the illumination direction can be adjusted.

On one end side of the power supply box 102 along the length direction of the lighting duct (not shown), a power supply plug 104 as an electrical connection portion that makes electrical connection and mechanical connection to the lamp body 103 and the lighting duct (not shown). Have The power plug 104 can be rotated by a lever 107.
Further, the other end side of the power supply box 102 has a mechanical connection portion 105 for performing mechanical connection to a lighting duct (not shown). This mechanical connection portion 105 is pivotally attached to the upper surface of the power supply box 102 via a hinge 106, and the attachment / detachment operation is performed in a state where the power supply plug 104 is detached from the fixed state to the lighting duct (not shown). It is possible.

Therefore, first, the mechanical connection part 105 is attached to a lighting duct (not shown). Thereafter, the power supply box 102 is rotated around the hinge 106, the power plug 104 is rotated to the mounting position by the lever 107, and the power plug 104 is attached to the lighting duct (not shown).
As a result, the power supply box 102 is movably supported by the lighting duct (not shown) by the power supply plug 104 and the mechanical connection portion 105 and is supplied with power by the power supply plug 104.

Japanese Patent No. 4066618 (FIG. 1)

By the way, as described above, in the lighting fixture 100 that houses the power supply device 101 in the power supply box 102, the primary side connector and the secondary side connector in the power supply device 101 usually face each other in the longitudinal direction. Provided in position.
That is, the primary connector that supplies power to the power supply device 101 is provided directly below the power supply plug 104, and the secondary connector that supplies power to the lamp 103 is provided on the mechanical connection portion 105 side.
For this reason, there is a problem that the lead wire connecting the secondary connector and the lamp 103 must be long in the longitudinal direction inside the power supply box 102.

  The present invention was made to solve the conventional problems, and an object of the present invention is to provide a luminaire that can shorten the wiring for electrically connecting the power supply device and the lamp body in the power supply box that houses the power supply device. To do.

The luminaire of the present invention includes a lamp having a light source therein, a power supply box that supports the lamp body, accommodates a power supply device therein, and is movably attached to a lighting duct; and the power supply box including the lighting duct. A power holding plug that movably supports the power supply box to the lighting duct and feeds power from the lighting duct to the power supply box, and protrudes from the bottom plate of the power supply box to the inside. And a rib that is formed around the projection, and a cover that covers an upper opening of the power supply box, and supports the lamp body at one end of the power supply box and the machine. A power holding unit is disposed, the power plug is disposed at the other end of the power supply box, and an electric input unit of the power supply device is disposed. Is provided on the serial power plug side, the electric output unit for supplying power to the lamp body from the power supply device is disposed on the lamp side, the tip of the protrusion is protruded upwardly from the hole formed in the cover, the The mechanical holding portion is attached to the tip of the protruding portion, and the protruding portion and the rib are thickened toward the base .

  Moreover, the lighting fixture of this invention WHEREIN: The said mechanical holding | maintenance part is provided between the gravity center position of the said power supply box, and the center position of an outline shape.

  Furthermore, in the lighting fixture of the present invention, two or more bosses are provided on the bottom plate of the power supply box, and the bosses are fitted at positions facing the bosses on the bottom surface of the substrate case that houses the power supply circuit board of the power supply device. A recess is provided, and a vertical wall is provided on the outer peripheral surface of the substrate case so as to protrude toward the power supply circuit board from the recess.

  In the present invention, the lamp body and the mechanical holding portion are provided at the end portion on the same side of the power supply box, and the power supply plug is provided at the opposite end portion. Since the electric input unit of the power supply device is provided on the power supply plug side and the electric output unit for supplying power from the power supply device to the lamp body is disposed on the lamp body side, the wiring connecting the electric output unit and the lamp body is shortened. It is possible to provide a lighting apparatus having an effect that it can be performed.

The perspective view of the lighting fixture of embodiment which concerns on this invention The side view which shows the state which attached the lighting fixture of embodiment which concerns on this invention to the lighting duct Top view of the power box with the cover removed Exploded perspective view of power box (A) is a perspective view of the housing of the power supply box with the cover removed, (B) is an enlarged view of a B portion in (A), and (C) is a cross-sectional view at a CC position in (B). (A) is a top view of a power supply box, (B) is a cross-sectional view of the position BB in (A), (C) is an enlarged view of a portion C in (B). (A) is the exploded perspective view which looked at the power supply box which removed the cover from the upper part, (B) is the exploded perspective view which looked at from the lower part (A) is the top view which looked at the power supply box which removed the cover from the upper part, (B) is sectional drawing of the BB position in (A), (C) is an enlarged view of C part in (B). Figure A perspective view of a conventional lighting fixture

Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1 and FIG. 2, a lighting fixture 10 according to an embodiment of the present invention is movably held along a lighting duct 12 attached to a ceiling 11, and illuminates, for example, a lower side or a side. To do.
In the following description, the ceiling 11 side is indicated by “upper side (upward)” and the side opposite to the ceiling 11 is indicated by “lower side (lower)”.

The lighting fixture 10 includes a power supply box 20 that accommodates a power supply device 21 (see FIG. 3) and is movably attached to the lighting duct 12. On the lower surface of the left end, which is one end of the power supply box 20, there is a lamp body 30 having a light source 31 inside. The lamp body 30 is attached to a lower end portion of an overall U-shaped support member 32 opened downward so as to be rotatable and stopable at a desired angle. The support member 32 is supported on the lower surface of the power supply box 20 so as to be rotatable in the horizontal direction.
Accordingly, the lamp body 30 can be irradiated in a desired direction, up, down, left, and right.

On the upper surface of the power supply box 20, there are a mechanical holding part 22 that is movably supported by the lighting duct 12 and a power supply plug 23 that is movably supported by the lighting duct 12 and that feeds power from the lighting duct 12 to the power supply box 20. Have.
The mechanical holding portion 22 is provided at the left end portion (one end portion) where the lamp body 30 is supported in the longitudinal direction of the power supply box 20, and a support plate 221 to be supported by the lighting duct 12 is provided. The power supply box 20 is long in the width direction.

On the other hand, the power supply plug 23 is provided at the right end which is the other end in the longitudinal direction of the power supply box 20. The power supply plug 23 has a support plate 231 that is supported by the lighting duct 12 in the width direction of the power supply box 20 and a power supply member 232 that is supplied with power from the lighting duct 12.
The power supply plug 23 is supported so as to be rotatable in the horizontal direction, and is rotated by the operation of the lever 233.

As shown in FIG. 4, the power supply box 20 has a rectangular box-shaped housing 24 having an upper opening (upper opening 241), and a cover 25 that covers the upper opening 241.
Therefore, the power supply box 20 is configured by housing the power supply device 21 in the housing 24 and attaching the cover 25 to the upper opening 241.

As shown in FIGS. 3 and 4, the power supply device 21 has a rectangular plate-shaped power supply circuit board 211 and is accommodated in a board case 214. The power circuit board 211 is mounted with a primary side connector 212 that is an electric input unit for supplying power to the power supply device 21 at an end on the power supply plug 23 side. The primary side connector 212 is connected to the power supply member 232 of the power supply plug 23 by the primary side lead wire 261.
In addition, a secondary side connector 213 that is an electric output unit for supplying lighting power from the power supply device 21 to the lamp body 30 is mounted on the end of the power circuit board 211 on the lamp body 30 side. The secondary side connector 213 is connected to the light source 31 of the lamp body 30 by the secondary side lead wire 262 as wiring.

As shown in FIG. 5A, a protruding portion 243 is provided on the left end, which is one end of the bottom plate 242 of the casing 24 of the power supply box 20, inside the casing 24 (in FIG. 5A). ) And projecting toward. The protrusion 243 includes a center of gravity position G1 of the power supply box 20 to which the lamp body 30 is attached (that is, a center of gravity position of the entire lighting fixture 10, see FIG. 2), and a center position of the casing 24 that is a contour shape of the power supply box 20. It is provided between G2.
For example, a circular base portion 247 is integrally provided at the lower end portion of the protruding portion 243 and is integrally attached to the bottom plate 242 via the base portion 247.
Thereby, the protrusion 243 is firmly attached to the bottom plate 242.

As shown in FIG. 5B, the projecting portion 243 has a circular cross section, and a plurality of (here, for example, four) ribs 244 are provided along the vertical direction in the periphery.
The protrusions 243 and the ribs 244 are thicker toward the roots. That is, the protruding portion 243 has a truncated cone shape whose diameter decreases upward.

The tip surface 243A of the projection 243 projects upward from a hole 251 (see FIG. 4) provided in the cover 25, and the mechanical holding unit 22 is attached to the tip surface 243A of the projection 243.
That is, as shown in FIGS. 5B and 5C, a pair of protrusions 245 for positioning the mechanical holding portion 22 are provided on the distal end surface 243 A of the protrusion 243, and the pair of protrusions 245 are interposed between the pair of protrusions 245. Is provided with a screw hole 246.
As shown in FIGS. 6B and 6C, the support plate 221 of the mechanical holding unit 22 is attached by fastening the screw 222 to the screw hole 246 of the protrusion 243.

As shown in FIG. 6C, when the diameter of the hole 251 of the cover 25 is D1, the diameter D2 at the base of the projection 243 is set to be at least larger than D1. Further, the diameter of the protrusion 243 including the rib 244 at the position of the hole 251 is smaller than D1.
Accordingly, since the outer diameter of the protrusion 243 increases toward the base, the protrusion 243 is caught in the hole 251 of the cover 25 in the unlikely event that the protrusion 243 is damaged and detached from the bottom plate 242. For this reason, falling of the lighting fixture 10 can be prevented and safety can be improved.

  As shown in FIG. 7A, two or more bosses 27 are provided on the bottom plate 242 of the power supply box 20. Here, for example, two bosses 27 (only one is shown in FIG. 7A) are provided at diagonal positions of the bottom plate 242 (see FIG. 5A). Further, a cradle 248 is provided in the longitudinal direction at the center of the bottom plate 242 (see FIG. 5A).

Then, as shown in FIG. 7B, the boss 27 fits in a position facing the boss 27 provided on the bottom plate 242 of the housing 24 on the bottom surface 214A of the substrate case 214 that houses the power circuit board 211. A recess 28 was provided. That is, the two recesses 28 are provided at diagonal positions of the substrate case 214.
In addition, a vertical wall 214 </ b> B is provided on the outer periphery of the substrate case 214 so as to protrude from the recess 28 toward the power circuit board 211 (that is, the upper side).

Here, as shown in FIG. 8C, when the height of the boss 27 is H1 and the depth of the recess 28 is H2, H1> H2 is set.
As a result, the bottom surface 214A of the substrate case 214 is attached in a state where it floats from the bottom plate 242 of the power supply box 20 by a predetermined distance (H1-H2), and heat dissipation is improved.

Therefore, when attaching the substrate case 214 to the housing 24, the concave portion 28 of the substrate case 214 is fitted to the boss 27 of the bottom plate 242 of the housing 24 and positioned. At this time, the cradle 248 provided on the bottom plate 242 of the housing 24 supports the bottom surface 214 </ b> A of the substrate case 214.
Then, the recess 28 is fixed to the boss 27 with the screw 29.

  As described above, the lighting fixture 10 according to the embodiment of the present invention described above is movably supported by the lighting duct 12 by the mechanical holding portion 22 and the power supply plug 23 provided in the power supply box 20. The power supply device 21 accommodated in the power supply box 20 receives power supplied from the lighting duct 12 via the power supply plug 23, supplies lighting power to the lamp body 30, and turns on the light source 31.

At this time, the lamp body 30 and the mechanical holding portion 22 are provided at the end portion on the same side of the power supply box 20, and the power supply plug 23 is provided at the opposite end portion. And the primary side connector 212 of the power supply device 21 was provided in the electric power feeding plug 23 side, and the secondary side connector 213 which supplies electric power from the power supply device 21 to the lamp body 30 was arrange | positioned in the lamp body 30 side. Thereby, the secondary side lead wire 262 which connects the secondary side connector 213 and the lamp body 30 can be shortened.
As a result, it is less susceptible to external noise.

In addition, the possibility that the primary lead wire 261 and the secondary lead wire 262 come close to the heat-generating component of the power supply device 21 is less affected by the heat from the power supply device 21, and thus the risk of thermal degradation is low. Thus, the life of the lighting fixture 10 can be extended.
Furthermore, since it is not necessary to route the primary side lead wire 261 and the secondary side lead wire 262, space saving can be achieved and the power supply box 20 can be reduced in size.

Further, a protrusion 243 is provided so as to protrude from the bottom plate 242 of the power supply box 20, and the tip of the protrusion 243 is protruded upward from the hole 251 of the cover 25 covering the upper opening 241 of the power supply box 20. The mechanical holding part 22 was attached to the front end surface 243A of 243.
For this reason, the bottom plate 242 of the power supply box 20 supports the weight acting on the mechanical holding unit 22, and the holding force is increased as compared with the case where the mechanical holding unit 22 is attached to the conventional cover 25.
Further, since the rib 244 is formed around the protrusion 243, the strength of the protrusion 243 can be increased.

Further, since the mechanical holding portion 22 is provided between the center of gravity position G1 of the power supply box 20 and the center position G2 of the outline shape of the casing 24, a large space is provided between the mechanical holding portion 22 and the power supply plug 23. be able to.
For this reason, the lighting fixture 10 can be attached to the lighting duct 12 with good balance.
Further, when the power plug 23 is made of resin, even if the power plug 23 is broken, the lighting fixture 10 can be supported only by the mechanical holding portion 22, and safety is increased.

Further, two or more bosses 27 are provided on the bottom plate 242 of the power supply box 20, and a recess 28 in which the boss 27 is fitted is provided at a position facing the boss 27 on the bottom surface 214 </ b> A of the substrate case 214 that stores the power supply circuit board 211. .
For this reason, when attaching the substrate case 214 to the power supply box 20, it can be positioned easily. Further, the height of the power supply box 20 can be lowered by the depth of the recess 28.
Further, since the vertical wall 214B that protrudes toward the power supply circuit board 211 from the recess 28 is provided on the outer periphery of the board case 214, it can be easily positioned when the power supply circuit board 211 is attached to the board case 214. .

  In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 12 Lighting duct 20 Power supply box 21 Power supply device 211 Power supply circuit board 212 Primary side connector (electrical input part)
213 Secondary side connector (electrical output)
214 Substrate case 214A Bottom surface 214B Vertical wall 22 Mechanical holding part 23 Power supply plug 241 Top opening 242 Bottom plate 243 Projection part 244 Rib 25 Cover 251 Hole 262 Secondary side lead wire (wiring)
27 Boss 28 Recess 30 Lamp body 31 Light source G1 Center of gravity position G2 Center position of contour shape

Claims (3)

A lamp body having a light source inside;
A power supply box that supports the lamp body and accommodates a power supply device therein and is movably attached to a lighting duct;
A mechanical holder that movably supports the power supply box on the lighting duct;
A power supply plug that movably supports the power supply box on the lighting duct and supplies power to the power supply box from the lighting duct;
A protrusion protruding inward from the bottom plate of the power supply box,
Ribs formed around the protrusions;
A cover covering the upper opening of the power supply box ,
While supporting the lamp body at one end of the power supply box, the mechanical holding portion is disposed,
Placing the power plug at the other end of the power box;
An electric input portion of the power supply device is provided on the power supply plug side, and an electric output portion for supplying electric power from the power supply device to the lamp body is disposed on the lamp body side ,
Projecting the tip of the protruding portion upward from the hole provided in the cover;
Attach the mechanical holding part to the tip of the protrusion,
The lighting device in which the protrusion and the rib are thicker toward the base . The lighting fixture according to claim 1 ,
The mechanical holding portion is a lighting fixture provided between the center of gravity of the power supply box and the center of the contour shape. The lighting fixture according to claim 1 or 2 ,
Two or more bosses are provided on the bottom plate of the power box,
Providing a recess into which the boss fits at a position facing the boss on the bottom surface of the substrate case that houses the power circuit board of the power supply device;
The lighting fixture which provided the vertical wall which protrudes in the said power supply circuit board side rather than the said recessed part in the outer peripheral surface of the said board | substrate case.

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