JP6076442B2 - Light source device and lighting apparatus - Google Patents

Description

  The present invention relates to an LED substrate fixing structure in a lighting fixture having an LED substrate.

  Conventionally, there is a lighting fixture in which LED packages are arranged linearly. For example, Patent Document 1 discloses a light source unit in which a plurality of LEDs are mounted on the surface of a substrate, a heat dissipation member that contacts the back surface of the substrate, a reflector disposed on the surface side of the substrate, and the light source. It is a lighting fixture which has a unit main body holding the unit and the heat dissipation member, and a fixing member for fixing the substrate to the heat dissipation member. In this lighting fixture, the fixing member is provided on the non-reflective surface side of the reflection plate with the reflection plate, the attachment portion attached to the fixture main body, and the substrate by the elastic force between the fixture main body. A sandwiching portion for sandwiching is integrally formed.

JP 2012-226957 A

  In Patent Document 1, the substrate is held by the reflector, but the reflector is composed of two parts on the left and right sides, and the substrate is fixed by sliding one side at a time. Problems such as an increase in cost and a decrease in work efficiency occur.

  An object of this invention is to provide the illuminating device which can suppress the increase in a number of parts, and the fall of work efficiency.

A light source device of the present invention;
A frame having at least two surfaces and having the light source disposed on one surface;
A main body covering the light source, a cover having an elastically deformable frame engaging portion protruding from the main body along the other surface of the frame;
Equipped with.

  According to the present invention, since the cover can be attached to the frame and the LED substrate can be fixed to the frame by one operation of engaging the cover with the frame, the number of parts and the number of work steps can be reduced. Can do.

FIG. 3 is a perspective view of the lighting apparatus 1000 in the first embodiment. FIG. 3 is an exploded perspective view of the lighting apparatus 1000 in the first embodiment. The perspective view of the light source part 200 of the state of Embodiment 1 in the state which removed the light source cover part 240. FIG. AA sectional drawing of FIG. FIG. 5 is a view corresponding to the AA cross-sectional view of FIG. FIG. 6 is a diagram for explaining reflection of light 2 in the second embodiment. FIG. 9 is a diagram of the third embodiment, and shows a protrusion 232-1-1. The A section enlarged view of FIG. 7 of Embodiment 3. FIG.

Embodiment 1 FIG.
In the first embodiment, as an example of the lighting apparatus according to the present invention, an inverted Fuji type illumination that is attached to a mounted portion such as a ceiling (hereinafter, the ceiling is described as an example of the mounted portion but is not limited to the ceiling). The instrument 1000 will be described. In the following description, for convenience, the ceiling side (attached surface side) will be described as the upper surface side, and the floor surface (opposite side to the attached surface) will be described as the lower surface side.

(Characteristics of lighting fixture 1000)
As described below (FIGS. 4, 6, 7, etc.), the lighting fixture 1000 of the first embodiment is characterized in that the cover 230 is attached to the frame 220 by engaging the cover 230 with the frame 220. The LED board 210 can be fixed to the frame 220. Hereinafter, the lighting apparatus 1000 of Embodiment 1 will be described with reference to FIGS.

  FIG. 1 is a perspective view of a lighting fixture 1000. FIG. 2 is an exploded perspective view of the lighting fixture 1000 shown in FIG. FIG. 3 is a perspective view in which the light source lid portion 240 is removed from the light source portion 200 shown in FIG.

(Configuration of lighting apparatus 1000)
As shown in FIGS. 1 and 2, a lighting fixture 1000 (lighting device) includes a main body 100 that is installed so as to abut on a ceiling (attached portion), and a light source unit 200 that is detachably attached to the main body 100. Composed. The light source unit 200 is detachably attached so as to face the main body unit 100. Both ends of the light source unit 200 are covered with light source cover units 240.

  FIG. 3 is a perspective view of the light source unit 200, and is a perspective view of the light source unit 200 of FIG. 4 is a cross-sectional view taken along the line AA in FIG. As shown in FIGS. 3 and 4, the light source unit 200 includes an LED substrate 210 (light source unit), a frame 220, and a cover 230.

(LED board)
The lighting fixture 1000 (FIG. 1) has a longitudinal shape, and the LED substrate 210 has a longitudinal shape as well. A plurality of LEDs 212 are mounted on the LED substrate 210 in the longitudinal direction of the mounting surface 211J of the substrate 211.

(Frame 220)
The frame 220 is made of a metal such as aluminum or iron, and heat generated from the LED 212 is transmitted to the frame 220 (frame side flat portion 221) through the substrate 211 to be radiated. The frame 220 functions as a fixing member to which the LED substrate 210 is fixed and a heat radiating member that radiates heat from the LED substrate 210. The frame 220 has a longitudinal shape substantially the same length as the main body 100 (FIG. 2). As shown in FIG. 4, the frame 220 has a frame-side flat portion 221 that abuts against the back surface of the LED substrate 210 (the surface on the back side of the mounting surface 211J). The frame 220 has a side plate 222 that has a substantially “U” shape in cross section and that stands from both sides of a frame-side flat portion 221 that is a long rectangular shape. The end portion of the side plate 222 in the vertical direction is curled along the longitudinal direction of the frame 220 (side plate curl portion 222R).

(Cover 230)
The cover 230 is made of a transparent or transparent resin such as polycarbonate or acrylic or containing a light diffusing material. The cover 230 is an integrally molded product. As shown in FIG. 4, the cover 230 includes a flat cover-side flat portion 232 that contacts the frame-side flat portion 221, and the LED substrate 210.
A translucent cover-side main body portion 233 and a claw portion 234 (cover-side frame engaging portion). The cover-side main body 233 rises from the cover-side flat portion 232 and covers the LED substrate 210. A cover side substrate fixing portion 232-1 is formed at an end portion of each cover side flat portion 232 near the LED substrate 210. In addition, a side plate-shaped claw portion 234 is erected in a wall shape from the back surface of the cover-side flat portion 232 in the longitudinal direction (FIG. 3). The claw portion tip portion 234R has a bent R shape that fits the side plate curl portion 222R.

(Engagement of cover 230 and frame 220)
The engagement between the cover 230 and the frame 220 will be described with reference to FIG. When the cover 230 is engaged with the frame 220, the operator holds the claw portion 234 of the cover 230 while holding the end of the LED substrate 210 in the longitudinal direction by the respective cover side substrate fixing portions 232-1. The claws 234 of the cover 230 are engaged with the side plates 222 of the frame 220 by elastically deforming and spreading as shown by broken lines. That is, the dimension L1 shown in FIG. 4 considers the dimension L1 on the cover 230 side and the dimension L1 on the frame 220 side, and the dimension L2 considers the plate thickness of the LED board 210 and covers the cover side substrate fixing portion 232-1 on the cover side. A step size (dimension L1 on the cover 230 side) with respect to the flat portion 232 is determined. Due to these dimensional relationships, the LED substrate 210 is pressed against and fixed to the frame 220 (frame-side flat portion 221) by the cover-side substrate fixing portion 232-1 and efficiently transmits the heat emitted from the LED 212 to the frame 220. It becomes possible. The LED substrate 210 may be fixed only by the cover 230, but an adhesive having a good thermal conductivity such as silicon is applied and adhered between the LED substrate 210 and the frame 220 (frame side flat portion 221). It may be fixed at 230.

  The lighting fixture 1000 of the above Embodiment 1 is characterized in that a part of the cover 230 is configured to hold the LED substrate. The cover 230 is an integrally molded product and is fixed by being fitted into the frame 220 which is a heat radiating member. A part (claw part) of the cover 230 has a function of fixing the LED substrate again after being fixed to the frame 220, and the LED substrate 210 is attached by one operation of fitting the cover 230 into the frame (heat radiating member). Can be fixed. Therefore, there are effects such as a reduction in the number of parts and a reduction in work man-hours.

Embodiment 2. FIG.
FIG. 6 is a cross-sectional view taken along the line AA in the second embodiment (the AA cross section in FIG. 3 of the first embodiment). As shown in FIG. 6, light emitted from the LED 212 includes light 1 emitted through the cover-side main body 233 and light 2 reflected from the cover inner surface (point P). The light 2 reflected by the inner surface (point P) of the cover-side main body 233 is reflected again by the cover-side flat portion 232 (including the cover-side substrate fixing portion 232-1) (point Q) inside the cover, and the cover-side main body. Light is emitted from the unit 233. Here, in the cover 230, the cover-side flat portion 232 serving as an internal reflection surface is made of a highly reflective material (cover-side flat portion 232A, cover-side substrate fixing portion 232-1A) having a higher reflectance than the cover-side main body portion 233. Thus, the light emission efficiency from the cover 230 can be increased. The highly reflective material is the same material as the light-transmitting material of the cover-side main body 233, for example, polycarbonate, and two kinds of materials can be extruded by integral molding. Further, if a highly reflective material is applied to the surface of the substrate 11, the optical efficiency can be further increased.

  In the lighting apparatus of Embodiment 2, the cover 230 is integrally formed of two types of resin materials, the light emitting portion (cover side main body portion 233) is made of a light transmissive material, and the reflecting portion (cover side substrate fixing portion 232). For the cover side flat portion 232 including -1, a highly reflective material having a reflectance of 90% or more is used. This has the effect of improving the light extraction efficiency.

Embodiment 3 FIG.
7 and 8 (enlarged view of part A) are AA cross-sectional views (cross-section AA in FIG. 3 of the first embodiment) showing the cover-side substrate fixing part 232-1 of the third embodiment.

As shown in FIGS. 7 and 8, the protrusion 232-1-1 is provided on the surface (location) of the cover-side substrate fixing part 232-1 that contacts the mounting surface 211 J of the substrate 211. By this protrusion 232-1-1, the substrate 211 can be reliably pressed against the frame 220 (frame side flat portion 221). The protrusion 232-1-1 has a longitudinal shape along a plurality of LEDs in FIG. 3.
The first to third embodiments may be combined in whole or in part.

The following lighting fixtures have been described in the above embodiments.
An LED substrate on which a plurality of LEDs are arranged;
A frame having a flat portion in contact with the back surface of the LED substrate;
A cover that is integrally formed and includes a light-transmitting cover-side main body that covers the LED substrate, a cover-side substrate fixing portion, and a cover-side frame engaging portion;
The cover is
The cover is attached to the frame by the cover side frame engaging portion engaging with the frame in a state where the cover side substrate fixing portion is in contact with the LED mounting surface of the LED substrate, and the cover side A board fixture fixes the LED board to the flat part of the frame.

The following lighting fixtures have been described in the above embodiments.
The cover is
A flat cover-side flat portion in contact with the flat portion of the frame;
The cover side main body is
While standing up from the cover side flat part and covering the LED substrate,
The cover side flat portion is
The lighting fixture characterized by having a light reflectance higher than that of the cover-side main body.

The following lighting fixtures have been described in the above embodiments.
The cover side substrate fixing part is
A lighting fixture, wherein a protrusion is formed at a location in contact with the mounting surface of the LED substrate.

  100 Main body part, 200 Light source part, 210 LED substrate, 211 substrate, 211J mounting surface, 212 LED, 220 frame, 221 frame side flat part, 222 side plate, 222R side plate curl part, 230 cover, 232 cover side flat part, 232-1, 232-1A Cover side substrate fixing portion, 232-1-1 protrusion, 233 cover side main body portion, 234 claw portion, 234R claw tip end portion, 240 light source lid portion, 1000 lighting fixture.

Claims (6)

A light source;
A frame having at least two surfaces and having the light source disposed on one surface;
A main body covering the light source, a cover having an elastically deformable frame engaging portion protruding from the main body along the other surface of the frame;
Equipped with a,
The frame engaging portion is
A light source device arranged in an outer side direction than the light source in the width direction of the light source. The frame is
A third surface different from the one surface and the other surface;
The cover is
In addition to the frame engaging portion that is the first frame engaging portion, it has a second frame engaging portion that is elastically deformable and protrudes from the main body portion along the third surface of the frame,
The first frame engagement portion and the second frame engagement portion are:
The light source device according to claim 1, wherein the frame is sandwiched. The cover is
The light source device according to claim 1, further comprising a fixing portion that protrudes from the main body portion along the one surface. A light source;
A frame having at least two surfaces and having the light source disposed on one surface, which is a light source arrangement portion on which the light source is disposed;
A main body covering the light source, a cover having an elastically deformable frame engaging portion protruding from the main body along the other surface of the frame;
Equipped with a,
The frame engaging portion is
A light source device arranged in an outer side direction than the light source arrangement part in the width direction of the light source. A light source;
A frame having at least two surfaces and having the light source disposed on one surface, which is a light source arrangement portion on which the light source is disposed;
A main body covering the light source, a cover having an elastically deformable frame engaging portion protruding from the main body along the other surface of the frame;
Equipped with a,
The frame is
A third surface different from the light source placement portion and the other surface;
The cover is
In addition to the frame engaging portion that is the first frame engaging portion, it has a second frame engaging portion that is elastically deformable and protrudes from the main body portion along the third surface of the frame,
The first frame engagement portion and the second frame engagement portion are:
A light source device sandwiching the light source arrangement portion therebetween. In a lighting fixture comprising a lighting fixture main body,
The light source device according to any one of claims 1 to 5 ,
The lighting apparatus body, luminaire that the light source device is attached.

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