JP2014207112A - Lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a sufficient spatial distance so as to make dust less likely to adhere to a light emitting section when the dust enters from a through hole for inserting an electric wire provided at a lighting apparatus into the lighting apparatus.SOLUTION: An LED lighting apparatus includes: a substrate 31 on which an LED element 30 is mounted; a charging part 32 including wiring, which supplies electric power to the LED element 30 and is provided on the substrate 31, and the LED element 30; an apparatus body 20 housing the substrate 31; a lighting power supply device 70 which supplies the electric power to the LED element 30 of the charging part 32; and an electric wire 60 which electrically connects the lighting power supply device 70 with the charging part 32. The apparatus body 20 is provided with a through hole 25 for inserting the electric wire 60. A barrier part 50 for extending a spatial distance between an apparatus body inner opening edge 24 of the through hole 25 and the charging part 32 is provided between the apparatus body inner opening edge 24 and the charging part 32.

Description

  The present invention relates to a lighting fixture.

  Conventionally, in the lighting fixture 10, it has been known that at least one of the fixture body 20 and the heat radiation fin 40 is provided with a wire wiring hole 44 for wiring the wire 51 connected to the LED light emitting unit 30 (for example, Patent Document 1). See also Cited Reference 1 for the Fuban number).

JP 2012-48996 A

  However, in the luminaire 10 as described above, without changing the size of the luminaire 10, from the opening of the surface of the wire main body 20 of the wire wiring hole 44 where the LED light emitting portion 30 is provided to the LED light emitting portion 30. It is difficult to ensure a sufficient space distance. In order to secure the spatial distance, there is a problem that the lighting fixture 10 is necessarily increased in size and cost.

  The present invention has been made in order to solve the conventional problems, and by providing a barrier between the through hole provided in the instrument body and the light emitting part, a spatial distance between the through hole and the light emitting part is ensured. Is. As a result, it aims at providing the lighting fixture which can aim at size reduction of a lighting fixture and cost reduction.

  A lighting fixture according to the present invention includes a board on which an LED element is mounted, a wiring unit provided on a board for supplying power to the LED element, a charging unit including the LED element, an appliance body that accommodates the board, and a charging unit. In an LED lighting apparatus having a lighting power supply device that supplies power to an LED element, and an electric wire that electrically connects the lighting power supply apparatus and a charging unit, and a through-hole through which the electric wire passes is provided in the apparatus body, A barrier portion is provided between the appliance main body inner rim and the charging portion to increase the spatial distance between the appliance main body inner lip and the charging portion.

  In the lighting fixture of the present invention, the fixture main body has a container shape having a bottom wall portion on which a substrate is provided and a peripheral wall portion surrounding the periphery of the bottom wall portion, and the through-hole has a bottom wall portion. It may penetrate in a direction substantially perpendicular to the bottom wall portion at a position that does not overlap with the substrate, and the barrier portion may protrude from the bottom wall portion.

  Moreover, in the lighting fixture of this invention, a barrier part is the cylinder shape protruded along the through-hole, Comprising: The protrusion front-end | tip of a cylindrical barrier part may be used as the instrument body inner side edge.

  In the lighting fixture of the present invention, the fixture body has a container shape having a bottom wall portion on which a substrate is provided and a peripheral wall portion surrounding the periphery of the bottom wall portion, and the through hole is formed in the peripheral wall portion. It may penetrate in a direction substantially perpendicular to the peripheral wall portion, and the barrier portion may protrude from the bottom wall portion.

  Moreover, in the lighting fixture of this invention, the barrier part may be provided so that a spatial distance may be 30 mm or more.

  The present invention can maintain a long spatial distance between the through hole and the LED substrate by providing a barrier portion between the through hole for inserting the electric wire into the instrument body and the LED substrate provided with the LED light emitting element. This makes it possible to provide an illuminating device that has an effect of making it difficult for dust or the like that has entered the inside of the luminaire main body to come into contact with the LED substrate from the through-hole, and that can reduce the size and cost of the luminaire.

The perspective view of the lighting fixture and lighting power supply device in Embodiment 1 which concerns on this invention The top view which looked at the instrument main body in Embodiment 1 which concerns on this invention from the irradiation direction The perspective view of the instrument main body in Embodiment 1 which concerns on this invention The perspective view of the instrument main body in Embodiment 2 which concerns on this invention The perspective view of the instrument main body in Embodiment 3 which concerns on this invention

(Embodiment 1)
Hereinafter, the lighting fixture of Embodiment 1 of this invention is demonstrated using drawing.
As shown in FIGS. 1 and 2, the luminaire 10 according to the first embodiment of the present invention can be used as a downlight that is embedded in an attachment hole provided in a ceiling and irradiates downward. The lighting fixture 10 includes a fixture main body 20, an LED element 30 that is a light source accommodated in the fixture main body 20, a heat dissipation unit 40, and a lighting power supply device 70.

  The instrument main body 20 is formed in a bottomed cylindrical shape by a peripheral wall portion 21 and a bottom wall portion 22 made of a hard resin material having insulating properties, and is opened in the irradiation direction side (downward in FIG. 1). It is. A ring-shaped gutter member 26 is provided on the irradiation direction side of the peripheral wall portion 21, and is exposed by contacting the lower surface of the ceiling when the instrument body 20 is attached to the ceiling. A plurality of attachment springs 23 are attached to the outer peripheral surface of the peripheral wall portion 21 at a predetermined interval. This attachment spring 23 is used for fixing to the ceiling surface when the instrument body 20 is attached to the ceiling. The number of installation springs 23 shown in FIG. 1 is merely an example, and the present invention is not limited to this. In addition, on the outer peripheral surface of the peripheral wall portion 21, in order to attach the heat radiating portion 40 to the upper side, heat radiating portion attaching portions (not shown) are provided at predetermined intervals.

  FIG. 2 is a plan view when the instrument body 20 is viewed from the irradiation direction side. As shown in FIG. 2, the LED element 30 is accommodated inside the instrument body 20 and is mounted on a substrate 31. Although a specific configuration of the LED element 30 is not illustrated, an LED chip (not shown) mounted on the substrate 31 and covered with a lens (not shown) can be considered. The lens composition may contain a fluorescent resin. In addition, wiring for supplying power to the LED element 30 is provided on the substrate 31, and a portion including all the wiring and the LED element 30 is a charging unit 32.

  As shown in FIGS. 1 and 2, the lighting power supply device 70 and the lighting fixture 10 are connected by an electric wire 60. The electric wire 60 electrically connects the lighting power supply device 70 and the charging unit 32 and supplies power to the LED element 30. Further, the electric wire 60 is drawn into the instrument body 20 by passing through the through hole 25 provided in the bottom wall portion 22 of the instrument body 20. The through hole 25 is provided at a position that does not overlap the substrate 31.

As shown in FIG. 3, a barrier portion 50 is provided on the bottom wall portion 22, which is a surface on which the substrate 31 of the instrument body 20 is installed. The barrier portion 50 is provided between the instrument body inner rim 24 that is an opening portion inside the instrument body 20 of the through hole 25 and the charging unit 32. Thus, by providing between the instrument main body inner rim 24 and the charging part 32, it becomes possible to keep the space distance between the instrument main body inner rim 24 and the charging part 32 long. The spatial distance here is the shortest distance passing through the space between the two conductive portions, and the minimum required spatial distance is determined by the Electrical Safety Law.

  Here, the barrier unit 50 will be specifically described. The barrier portion 50 is provided substantially perpendicular to the bottom wall portion 22 and has a shape that draws an arc when viewed from the irradiation direction. By adopting such a shape, the shortest distance passing through the space between the appliance main body inner rim 24 and the charging unit 32 becomes longer. As a result, the spatial distance can be increased without changing the size of the instrument body 20.

  Further, the height with respect to the bottom wall portion 22 of the barrier portion 50 will be described. In FIG. 3, the height of the barrier portion 50 and the bottom wall portion 22 of the peripheral wall portion 21 as a reference is represented equally, but the height is not limited to the one that keeps the height equal. For example, the barrier portion 50 may be set lower than the peripheral wall portion 21. By reducing the height of the barrier portion 50 in this manner, a gap is formed between the barrier portion 50 and a cover (not shown) for protecting the light source mounted on the instrument body 20. Even if this gap is formed, the shortest distance passing through the space between the instrument body inner rim 24 and the charging unit 32 can be designed longer than when the barrier unit 50 is not provided. . That is, if the barrier portion 50 has a slight convex shape with respect to the bottom wall portion 22, an effect can be obtained.

  Moreover, although the barrier part 50 having a shape that draws an arc has been described above, the shape of the barrier part 50 is not limited thereto. For example, it may be a linear shape or a U-shape with three sides surrounded by sides.

Moreover, it is preferable that the space distance (shortest distance which passes space) from the instrument main body inner side edge 24 to the charging part 32 is 30 mm or more. This length of 30 mm is a standard defined by the Electrical Goods Safety Law. There is a risk that dust or the like may enter the inside of the instrument body 20 from the through hole 25 provided in the instrument body 20, and when dust or the like adheres to the charging unit 32, it may cause a failure such as a short circuit. In order to avoid these problems, it is required to provide a certain distance from the appliance main body inner edge 24 to the charging unit 32.
(Embodiment 2)
Hereinafter, the second embodiment will be described with respect to parts different from the first embodiment. Description of the same parts as those in the first embodiment is omitted.

  As shown in FIG. 4, the barrier portion 50 is a cylinder 28 that protrudes along the through hole 25 toward the installation surface of the substrate 31, and is provided substantially perpendicular to the bottom wall portion 22. The protruding tip of the tube 28 is the instrument body inner rim 24. Thus, by making the protruding tip of the cylinder 28 the appliance main body inner rim 24, it is possible to provide a height difference between the charging unit 32 and the instrument main body inner rim 24. In other words, the spatial distance can be increased by utilizing the region in the height direction. As a result, the spatial distance can be increased without changing the size of the lighting fixture 10. The diameters of the through hole 25 and the cylinder 28 may not be the same. For example, the diameter of the cylinder 28 may be larger than the diameter of the through hole 25.

  In FIG. 4, the height of the cylinder 28 and the peripheral wall portion 21 is equal to the height with respect to the bottom wall portion 22, but is not limited thereto. For example, even if the cylinder 28 is lower than the height of the peripheral wall portion 21, an effect for increasing the spatial distance is produced.

In addition, the shape of the cylinder 28 may be a shape whose diameter becomes narrower as it goes to the projecting tip, or a shape whose diameter becomes thicker. Whichever shape is adopted, the spatial distance between the instrument body inner rim 24 and the charging unit 32 can be increased.
(Embodiment 3)
Hereinafter, Embodiment 3 will be described. The same parts as those in the second embodiment or the third embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 5, the through hole 25 is penetrated so as to be perpendicular to the peripheral wall portion 21. By providing the through hole 25 at such a position, the electric wire 60 can be inserted into the inside of the instrument body 20 from the side surface of the instrument body 20. As a result, it is possible to install the lighting fixture 10 even in a place where the gap between the lighting fixture 10 and the ceiling is limited.

  The barrier portion 50 is provided substantially perpendicular to the bottom wall portion 22 and is provided between the through hole 25 and the charging portion 32. By providing the barrier unit 50 between the through hole 25 and the charging unit 32, the spatial distance of the through hole 25 from the instrument body inner edge 24 of the through hole 25 can be increased.

  The shape of the barrier portion 50 may be a shape having a thickness that draws an arc along the peripheral wall portion 21 as shown in FIG. 5, but is not limited to this shape. For example, a straight shape may be used without drawing an arc.

The present invention can be used for ceiling-mounted LED lights.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 21 Peripheral wall part 22 Bottom wall part 23 Attachment spring 24 Instrument main body inner edge 25 Through-hole 26 Girder member 28 Tube 30 LED element 32 Charging part 31 Substrate 40 Radiation part 50 Barrier part 60 Electric wire 70 Lighting power supply device

Claims (5)

A substrate mounted with LED elements;
A charging unit including wiring provided on the substrate for supplying power to the LED element and the LED element;
An instrument body for housing the substrate;
A lighting power supply for supplying power to the LED element of the charging unit;
An electric wire for electrically connecting the lighting power supply device and the charging unit;
In the LED lighting device provided with a through hole through which the electric wire passes in the device body,
The lighting fixture characterized by providing the barrier part which lengthens the space distance between the said instrument main body inner edge and the said charging part between the instrument main body inner edge of the said through-hole, and the said charging part. The instrument body has a bottom wall provided with the substrate;
A container having a peripheral wall surrounding the bottom wall,
The through hole penetrates in a direction substantially perpendicular to the bottom wall portion at a position not overlapping the substrate of the bottom wall portion,
The lighting apparatus according to claim 1, wherein the barrier portion protrudes from the bottom wall portion. The barrier portion has a cylindrical shape protruding along the through hole,
The lighting fixture according to claim 2, wherein a protruding tip of the cylindrical barrier portion is an inner edge of the fixture main body. The instrument body has a bottom wall provided with the substrate;
A container having a peripheral wall surrounding the bottom wall,
The through hole penetrates the peripheral wall portion in a direction substantially perpendicular to the peripheral wall portion,
The lighting apparatus according to claim 1, wherein the barrier portion protrudes from the bottom wall portion. The lighting apparatus according to claim 1, wherein the barrier portion is provided so that the spatial distance is 30 mm or more.