JP5519445B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that has an LED light-emitting unit as a light source and is provided mainly on a ceiling or the like to illuminate the lower part.

2. Description of the Related Art Conventionally, LED lighting fixtures that illuminate, for example, the lower side using LEDs are known (see, for example, Patent Document 1).
As shown in FIG. 4, the LED lighting apparatus 101 described in Patent Document 1 is a pendant light (ceiling hanging lamp) that is used by being suspended from the ceiling, for example. The LED lighting apparatus 101 includes an LED board 102 on which LEDs 102a, 102a,... Are mounted, and a power supply circuit 103 that supplies power to the LED board 102. The LED casing 104 that houses the LED substrate 102 and the power supply casing 105 that houses the power supply circuit 103 are configured separately from the LED casing 104. The LED casing 104 and the power supply casing 105 are assembled so as to be detachable from each other.
The power supply circuit 103 is connected to a commercial power supply by a power supply line 106. Further, the LED substrate 102 is connected to the power supply circuit 103 by an electric wire 107.

Japanese Patent Laying-Open No. 2008-258066 (FIG. 2)

  By the way, in the lighting fixture 110 shown to FIG. 5 (A), the fixture main body 111 which accommodates the LED board which mounted the LED chip, and the thermal radiation fin 112 which discharge | releases heat are integrated with the screw 118. FIG. A power supply device 113 that supplies power to the LED substrate is attached on the heat radiation fin 112, and the LED substrate and the power supply device 113 are electrically connected by an electric wire 114.

  As shown in FIG. 5 (B), the electric wires 114 connected to the LED substrate go out of the instrument main body 111 through the electric wire holes 115 provided in the instrument main body 111 and are wired. The electric wire 114 is fixed to the outside of the heat radiation fin 112 by a wire stopper 116 attached to the bottom plate of the heat radiation fin 112 with a screw 117 so that no tension is applied.

  However, in the lighting fixture 110 as described above, the electric wire 114 is fixed by the electric wire stopper 116 so that the electric wire 114 connected to the LED substrate is not tensioned. The above-described parts are necessary, and it is necessary to pass the electric wire 114 through the electric wire stopper 116 and tighten the screw 117, so that there is a problem that it takes time and labor for installation.

  The present invention has been made to solve the conventional problems, and by easily fixing the electric wire drawn from the instrument body without using another part such as a metal fitting, the number of parts can be reduced and the number of work steps can be reduced. It aims at providing the lighting fixture which can aim at reduction.

  The lighting fixture of the present invention has a fixture main body that accommodates the LED light emitting portion, and a radiation fin that is connected to the fixture main body and emits heat generated by the LED light emitting portion, and the LED is provided on at least one of the fixture main body and the radiation fin. While providing the electric wire wiring hole which wires the electric wire connected to a light emission part, an electric wire is clamped by cooperation of an instrument main body and a radiation fin.

  Moreover, the lighting fixture of this invention has an electric wire wiring hole provided in the attachment part vicinity of an instrument main body and a radiation fin.

  Moreover, the lighting fixture of this invention has the protrusion for guides which guides an electric wire in the vicinity of an electric wire wiring hole in the lower surface of a radiation fin.

  Moreover, the lighting fixture of this invention provided the 2nd processus | protrusion for guides which pinches | interposes an electric wire in the vicinity of the processus | protrusion for guides.

  Furthermore, in the lighting fixture of the present invention, the electric wire wiring hole is partially opened, and a protruding portion that protrudes toward the opening is provided.

  In the present invention, at least one of the instrument main body and the heat radiating fin is provided with a wire wiring hole for wiring an electric wire connected to the LED light emitting unit, and the electric wire is sandwiched by the cooperation of the instrument main body and the heat radiating fin. Thus, it is possible to provide a lighting apparatus that can easily fix the obtained electric wire without using a separate part such as a metal fitting, and can reduce the number of parts and the number of work steps.

(A) is the perspective view which looked at the lighting fixture of embodiment which concerns on this invention from upper direction, (B) is an enlarged view of B part in (A). (A) is the exploded perspective view which looked at the radiation fin and the light emission part from the lower part, (B) is sectional drawing of the LED package which comprises a LED light emission part Enlarged view of part III in FIG. Sectional view of a lighting fixture using conventional LEDs (A) is a perspective view which shows the problem in the conventional lighting fixture, (B) is an enlarged view of B part in (A).

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
As shown in FIG. 1, the luminaire 10 according to the embodiment of the present invention can be used as a downlight that is embedded in a mounting hole (not shown) provided in the ceiling 11 and illuminates the lower part. The lighting fixture 10 includes a fixture main body 20, an LED light emitting unit 30 (see FIG. 2) that is a light source accommodated in the fixture main body 20, a radiation fin 40, and a lighting power supply device 50.

  The instrument main body 20 is formed in a cylindrical shape by a peripheral plate 21 made of a hard resin material having insulation properties, and is opened forward (in this case, downward) in the irradiation direction. A ring-shaped gutter member 22 is provided on the lower end surface of the peripheral plate 21, and is exposed in contact with the lower surface of the ceiling 11 when the instrument body 20 is attached to the mounting hole of the ceiling 11. A plurality (for example, two in this case) of attachment springs 23 are attached to the outer peripheral surface of the peripheral plate 21 at a predetermined interval. In addition, a plurality of partial cylindrical radiating fin mounting portions 24 are provided at predetermined intervals on the outer peripheral surface of the peripheral plate 21 in order to mount the radiating fins 40 on the upper side. A hole (not shown) is formed.

  As shown in FIG. 2, the LED light emitting unit 30 is housed inside the instrument body 20, and a plurality of LED packages 34 are mounted with a LED chip 32 mounted on a substrate 31 and covered with a lens 33 facing downward. Have.

As shown in FIGS. 1 and 2, the radiating fin 40 is erected upward from a substantially disc-shaped base 41 corresponding to the shape of the upper end surface 211 of the peripheral plate 21 of the instrument body 20 and the upper surface of the base 41. In addition, a plurality of thin plate-like fins 42 are provided, and a lighting power supply device 50 is attached to the upper side of the fins 42. A plurality of mounting screw holes 43 (see FIG. 3) are provided on the outer peripheral portion of the base 41 corresponding to the radiating fin mounting portions 24 provided on the peripheral plate 21 of the instrument body 20.
Therefore, the fixture body 20 and the radiation fin 40 are joined together by inserting the attachment screw 25 into the attachment screw hole 43 and tightening it to the screw hole of the radiation fin attachment portion 24 provided in the peripheral plate 21 of the base 41. To do.

As shown in FIG. 3, an electric wire wiring hole 44 is provided in at least one of the instrument main body 20 and the radiating fin 40 in order to wire an electric wire 51 that electrically connects the LED light emitting unit 30 and the lighting power supply device 50. . Further, the wire wiring hole 44 is provided in the vicinity of the peripheral plate 21 of the instrument body 20 and the base 41 of the radiation fin 40, which are attachment parts between the instrument body 20 and the radiation fins 40.
Here, the electric wire wiring hole 44 is provided in the outer peripheral part of the base 41 of the radiation fin 40, for example.

As shown in FIG. 1B, the wire wiring hole 44 has a substantially circular shape through which the wire 51 can pass, and at least the upper end surface 211 of the peripheral plate 21 of the instrument body 20 is exposed inside the wire wiring hole 44. It is set to the size to be.
Therefore, when the radiation fin 40 is attached to the instrument body 20, a part of the wire wiring hole 44 is blocked by the peripheral plate 21 of the instrument body 20, so that the electric wire 51 is connected to the base 41 of the radiation fin 40 and the instrument body 20. It is clamped by cooperation with the peripheral plate 21.

As shown in FIG. 3, the electric wire wiring hole 44 is provided in the outer peripheral part of the base 41, and one part is opening outside (opening part 441). The wire wiring hole 44 is provided with a protruding portion 45 that protrudes toward the opening 441. The protrusion 45 can be a column having a semicircular cross section, for example. Further, the distance between the tip of the protrusion 45 and the inner surface of the opposing wire wiring hole 44 is set to be smaller than the outer diameter of the wire 51.
Here, the wire wiring holes 44 are provided on both sides of the mounting screw hole 43, but the number and location are not limited to both sides of the mounting screw hole 43.

In the center of the lower surface of the base 41 of the radiating fin 40, a cylindrical inner tube portion 46 is provided so as to be fitted in the LED light emitting portion 30, and outside the inner tube portion 46 in the vicinity of the electric wire wiring hole 44. A guide projection 47 for guiding the electric wire 51 is provided so as to protrude downward. Here, since the electric wire wiring holes 44 are provided on both sides of the mounting screw hole 43, a pair of guide protrusions 47 are also provided on the left and right in correspondence thereto.
The distance between the guide protrusion 47 and the inner cylinder portion 46 is set to be smaller than the outer diameter of the electric wire 51.

  Further, in the vicinity of the guide projection 47, a second guide projection 48 that sandwiches the electric wire 51 is provided. The second guide protrusion 48 is provided so as to be orthogonal to the inner cylinder portion 46 and toward the mounting screw hole 43. A gap that is smaller than the outer diameter of the electric wire 51 is provided between the guide protrusion 47 and the second guide protrusion 48, and can be held by pushing the electric wire 51.

Next, how to assemble the lighting fixture 10 and how to attach it to the ceiling 11 will be described.
First, when assembling the luminaire 10, one end of the electric wire 51 is connected to the LED light emitting unit 30, the electric wire 51 is pushed between the guide projection 47 and the inner tube portion 46, and the guide projection 47 and the second The guide projection 48 is pushed in between.
And the electric wire 51 is pushed in between the electric wire wiring hole 44 and the protrusion part 45, is temporarily fixed, the electric wire 51 is wired to the outer side of the radiation fin 40, and is connected to the lighting power supply device 50 above the radiation fin 40. Thereafter, the LED light emitting unit 30 is accommodated in the instrument main body 20, and the instrument main body 20 and the heat radiation fin 40 are joined by the mounting screw 25.

  Next, when attaching the lighting fixture 10 to the attachment hole of the ceiling 11, the attachment spring 23 is elastically deformed above the appliance main body 20 (in the direction of arrow A in FIG. 1A) and inserted into the attachment hole. After that, when the attachment spring 23 is released in the horizontal direction by releasing the hand, the lighting fixture 10 is fixed to the ceiling 11 with the ceiling 11 interposed between the lower surface of the attachment spring 23 and the upper surface of the flange member 22 of the fixture body 20. To do.

  As described above, the lighting fixture 10 according to the embodiment of the present invention described above is configured by connecting the fixture main body 20 that houses the LED light emitting unit 30 and the radiation fins 40 that release the heat generated by the LED light emitting unit 30. And since the electric wire wiring hole 44 which wires the electric wire 51 connected to the LED light emission part 30 is provided in the base 41 of the radiation fin 40, and the electric wire 51 is clamped by cooperation of the instrument main body 20 and the radiation fin 40, the instrument The electric wires 51 drawn from the main body 20 can be easily fixed without using separate parts such as metal fittings, and the number of parts and the number of work steps can be reduced.

  Further, since the wire wiring hole 44 is provided in the outer peripheral portion of the base 41 of the radiating fin 40 in the vicinity of the attachment portion between the instrument main body 20 and the radiating fin 40, the electric wire 51 is sandwiched by the cooperation of the instrument main body 20 and the radiating fin 40. It can be easily fixed without using separate parts such as metal fittings, and the number of parts and the number of work steps can be reduced.

  Moreover, since the electric wire 51 can be fixed to the lower surface of the radiation fin 40 by wiring along the guide protrusion 47 provided in the vicinity of the electric wire wiring hole 44 on the lower surface of the base 41 of the radiation fin 40, When connecting the instrument main body 20 and the radiation fin 40, the electric wire 51 can be prevented from being caught and the assemblability is improved.

  In addition, since the second guide protrusion 48 is provided in the vicinity of the guide protrusion 47, the electric wire 51 is sandwiched between the guide protrusion 47 and the second guide protrusion 48 so that the electric wire 51 is connected to the lower surface of the radiating fin 40. When the instrument body 20 and the radiation fin 40 are connected to each other, the electric wire 51 can be prevented from being caught, and the assemblability is improved.

  Further, since the wire wiring hole 44 is provided with the protruding portion 45 protruding toward the opening 441, the electric wire 51 can be easily temporarily fixed, and the instrument main body 20 and the radiation fin 40 can be connected in the temporarily fixed state. Mounting workability is improved.

In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the case where the wire wiring hole 44 is provided in the base 41 of the radiation fin 40 as at least one of the instrument body 20 and the radiation fin 40 is illustrated. It is also possible to provide it.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 30 LED light emission part 40 Radiation fin 41 Base (attachment part)
44 Wire wiring hole 441 Opening (opening)
47 Guide protrusion 48 Second guide protrusion 51 Electric wire

Claims (5)

An instrument body that houses the LED light emitting unit;
A heat dissipating fin that is connected to the appliance body and emits heat generated by the LED light emitting unit;
The lighting fixture which provides the electric wire wiring hole which wires the electric wire connected to the said LED light emission part in at least one of the said fixture main body and the said radiation fin, and clamps the said electric wire by cooperation of the said fixture main body and the said radiation fin. The lighting fixture according to claim 1,
The lighting fixture in which the said wire wiring hole was provided in the attachment part vicinity of the said instrument main body and the said radiation fin. The lighting fixture according to claim 1 or 2,
A luminaire having a guide projection for guiding the electric wire in the vicinity of the electric wire wiring hole on the lower surface of the radiating fin. The lighting fixture according to claim 3,
The lighting fixture which provided the 2nd projection for guides which pinches | interposes the said electric wire in the vicinity of the said projection for guides. In the lighting fixture of any one of Claims 1 thru | or 4,
The said electric wire wiring hole is partially opened, The lighting fixture which provided the protrusion part which protrudes toward the said opening.

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