JP3048133B2 - Structure for mounting the surface-emitting lighting unit on the ceiling, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member forming a light emitting surface for closing a concave portion by providing an ultra-small cold-cathode fluorescent tube on one side of the concave portion as a reflecting surface. And a structure for attaching a surface-emitting lighting body to a ceiling or the like, wherein the surface-emitting lighting body is inserted.

[0002]

2. Description of the Related Art Conventional surface light emitters are often used as one component of OA equipment and home appliances, such as a backlight of a liquid crystal display, and are now being used as lighting equipment. In this case, when the fluorescent tube has run out or the lighting life has expired, the entire unit is replaced. Therefore, it was extremely troublesome to remove them from the ceiling or to attach them. Therefore, a configuration has been developed in which a fluorescent tube can be detached and attached from one side of the lighting fixture body in the case of such a broken fluorescent tube.

[0003]

This type of cover has a lid-like cover for the purpose of maintaining the airtightness of the main body of the luminaire, making the support of the luminaire more secure and safe, and further providing an external design. It was necessary to cover the surface-emitting illuminator. However, in this case, when replacing the fluorescent tube, it takes time to remove the cover and remove the surface-emitting illuminator.

[0004] The present invention has been made in view of the above points, and when replacing the ultra-small cold-cathode fluorescent tube of such a surface-emitting illuminator, the cover and the entire surface-emitting illuminator are not removed. An object of the present invention is to provide a structure for mounting a surface-emitting illuminator on a ceiling or the like, which makes it possible to attach and detach the fluorescent tube from the surface-emitting illuminator very easily by suspending the fluorescent tube from a ceiling or the like.

[0005]

According to the first aspect of the present invention, a flat box-shaped main body is provided with a reflection surface on the bottom surface of the concave portion of the opening, and a microminiature cold cathode fluorescent tube is provided on one side of the concave portion. In the surface-emitting illuminator in which a member constituting a light-emitting surface to be closed is inserted, the ultra-small cold cathode fluorescent tube is attached and detached from a side surface of the box-shaped main body. One end of the hinge is fixed to the edge where the side surface and the back surface where the pipe is not attached / detached intersecting, and the other end is fixed to the ceiling or the like, and the box-shaped main body is rotatable around the hinge. The free end is detachably fixed to a ceiling or the like with a screw, and one end of a lid-shaped cover covering the outer periphery of the box-shaped main body is fixed to one end of a hinge fixed to a ceiling or the like outside the hinge. The cover is rotatable around the hinge, and the free end of this cover is And detachably fixed by screws to the ceiling or the like of the outer derived end, and a mounting structure of the ceiling or the like of the surface-emitting lighting element.

According to a second aspect of the present invention, the bottom surface of the flat box-shaped main body is formed as a reflection surface, and a micro cold cathode fluorescent tube is provided on one side of the recess to form a light emitting surface for closing the recess. In the surface-emitting illuminator formed by inserting a member to be inserted, the ultra-small cold-cathode fluorescent tube is attached and detached from a hole with a lid provided on a side surface of the box-shaped main body, and the caulking plate is fixed to a ceiling or the like. ,
One end of a main body mounting plate fixed to the back of the box-shaped main body is attached to a hinge provided on one side of the caulking plate, and the main body mounting plate fixing the box-shaped main body is rotatable around the hinge, The side of the mold body having a hole with a lid is located on the free end side of the body mounting plate, and the free end of the body mounting plate that protrudes outward from the box-shaped body is detachably attached to the ceiling or the like with a screw. Fix and attach one end of a lid-shaped cover covering the outer periphery of the box-shaped body to one end of a hinge provided on the other side of the sash plate located outside the hinge, and this cover is centered on the hinge. It is rotatable, and the edge tongue of the free end of the cover is detachably fixed to a ceiling or the like outside the free end of the main body mounting plate with a screw. .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, a surface-emitting illuminator used in the present invention will be described with reference to FIGS. In the flat box-shaped main body 1 having an opening recess 1a on one side, the bottom surface of the opening recess 1a is used as a reflecting surface, and on the upper and lower sides of the recess 1a,
Groove-shaped concave portions 2 and 2 facing the open concave portion 1a are provided, and a reflection sheet 3 having a substantially U-shaped cross section is inserted into each of the groove-shaped concave portions 2. Tubes 4 and 4 are provided, and a member 5 constituting a light emitting surface for closing the opening recess 1a is inserted. A control device housing recess 1b into which the inverter device 6 of the lighting body is inserted is provided along one side of the opening recess 1a, and a cable bush 7 is inserted into a hole formed in one side surface of the box-shaped main body 1 on the side. The lead wire 8 is introduced into the control device housing recess 1b.

Further, a frame-shaped packing material 9 is placed on the box-shaped main body 1 along the outer periphery of the opening of the opening recess 1a and the control device housing recess 1b, and the opening is closed. A transparent cover plate 10 for closing the portion is placed, and the transparent cover plate 10 is fixed with screws around the outer periphery of the box-shaped main body 1. On the back surface of the transparent cover plate 10, a convex portion 10a is provided through the opening of the open concave portion 1a to press the upper surface of the member 5 constituting the light emitting surface in the open concave portion 1a. The inner peripheral edge of the packing material 9 comes into pressure contact. Further, grooves 12 are provided on one side surface of the box-shaped main body 1 having the control device housing recess 1b in the axial direction of the ultra-small cold cathode fluorescent tubes 4 above and below the box-shaped main body 1, respectively. A small through-hole 13 having a protruding portion 13a is formed on both sides of the circular shape reaching from the groove-shaped concave portion 2 to the groove-shaped concave portion 2. The positions of these grooves 12 are out of the above-mentioned control device housing recess 1b.

At the other end of the groove-shaped recess 2 opposed to the small through hole 13 of each groove 12, a support electrode 14 composed of a coil spring for supporting one end of each of the micro cold cathode fluorescent tubes 4 is fixed. I have. As shown in FIGS. 4 and 5, each of these support electrodes 14 has a U-shaped electrode plate 14a made of a conductor.
Insert the coil spring 14b into the groove of the electrode plate 14a.
One end of the coil spring 14b is supported by a bent plate 14c formed by bending a cut portion provided on one side of the coil spring 14b. Further, one end of one lead wire 6a of the control device housing recess 1b led out from the inverter device 6 is connected to a terminal plate 14d obtained by bending an end of the electrode plate 14a by welding. Each of the support electrodes 14 has a hole 14e formed in the terminal plate 14d fitted into a pin 2a projecting from a corner of the groove-shaped recess 2, and fitted into the corner. Thereby, the supporting electrode 1
4 is fixed. One end of each of the ultra-small cold cathode fluorescent tubes 4 pushes the coil spring 14b, and the coil spring 14b
Is contracted, guided into the two side plates of the electrode plate 14a, supported at the corresponding location, and electrically connected to the support electrode 14.

The small through holes 13 of each of the grooves 12 are closed by caps 15, respectively. Each of these caps 15 has a flange 15b at one end of a short cylinder 15a as shown in FIGS.
The protrusions 15c, 15c are provided on both sides of the other end.
5c, insert the cap 15 into each small through hole 13,
A groove 15d provided on the outer surface of the flange 15b of the cap 15
When a coin or tool is put into the container and turned 90 degrees, the two projections 15c of the cap 15 are locked on the inner peripheral surface of the small through hole 13 as shown in FIG. The flange 15b is clamped, and the cap 15 is fixed. The flange 15b of the cap 15 closes the protrusions 13a on both sides of each small through hole 13.

On the back surface of each of these caps 15,
A pinching electrode 16 composed of a plurality of elastic legs 16a is a screw 17
It is fixed by. The other end of each microminiature cold cathode fluorescent tube 4 is sandwiched between these elastic legs 16a to support each microminiature cold cathode fluorescent tube 4. An electrode plate 18 is erected in each groove-shaped recess 2 at a certain distance from each of the small through holes 13 so as to face the small through hole 13. The electrode plate 18 has a through hole 18a through which each of the microminiature cold cathode fluorescent tubes 4 can be inserted, and one end of the other lead wire 6b of the control device housing recess 1b led out from the inverter device 6 is connected thereto. I have.

Accordingly, an operator holds each cap 15 supporting the other end of each microminiature cold cathode fluorescent tube 4 on each sandwiching type electrode 16, and holds one end of each microminiature cold cathode fluorescent tube 4 on the box-shaped main body 1. Each of the small through holes 13 on the side face is inserted into each of the reflection sheets 3 in the groove-shaped concave portion 2, and further, is locked on the coil spring 14 b of the support electrode 14, and is pushed, so that one end of each cap 15 is fixed to each Insert the through hole 13 and turn it approximately 90 degrees,
5 is fixed to each small through hole 13. Further, in this state, the tip of the elastic leg 16a of each sandwiching type electrode 16 of each cap 15 comes into contact with each electrode plate 18, and one end of the microminiature cold cathode fluorescent tube 4 and the electrode plate 18 are electrically connected. It has a configuration.

The surface-emitting illuminator used in the present invention has the above-described structure. Next, the mounting structure of the surface-emitting illuminator of the present invention will be described with reference to FIGS. As shown in FIG. 8, fixed length plates 22 having hinges 21, 21 fixed to both ends are fixed to a ceiling plate 20, and each free end of a main body mounting plate 23 having one end fixed to each hinge 21. The box-type main body 1 is detachably fixed to the ceiling plate 20 by screws 24, as shown in FIG.
The back of is fixed. Further, two hinges 25, 25 are fixed to one side of the caulking plate 22 inside the hinges 21, and each of the hinges 25 has an opening 26a in the center of a flat lid.
Is fixed to one side, and the side edge tongue portion 26b provided on the other side is fixed to the ceiling plate 20 so as to be detachably fixed by screws 27.

Therefore, when replacing the ultra-small cold-cathode fluorescent tube 4, first remove the screws 27 and turn the cover 26 around the hinges 25 as shown in FIGS. When the screws are removed and the screws 24 are further removed, the tips of the main body mounting plates 23 descend around the hinges 21 and the box-shaped main body 1 integrated therewith hangs down from the ceiling plate 23, as shown in FIGS. As shown in FIG.
And the hinges 25 are displaced from each other, so that the box-shaped main body 1 hangs beside the cover 26, and fits into each small through hole 13 of each groove 12 on the side surface of the box-shaped main body 1 as shown in FIG. The closed cap 15 is exposed. Therefore, the ultra-small cold-cathode fluorescent tube 4 can be replaced in this state, which is extremely convenient.

FIGS. 16 to 18 show another example of the surface-emitting illuminator used in the present invention. In this case, the replacement of the ultra-small cold-cathode fluorescent tube 4 is performed through a screw hole on the side of the box-shaped main body 1. Done. That is, instead of the support electrode 14 that supports one end of the microminiature cold cathode fluorescent tube 4, a support electrode 38 having a cap 38b at the tip of a coil spring 38a is provided. , The cap 15
As shown in FIG. 17, instead of the sandwiching type electrode 16 fixed to the box-shaped main body 1, a screw-type cap 40 screwed into a screw hole 39 provided on a side surface of the box-shaped main body 1 is supported by being inserted into a concave groove 40a on the back surface thereof. is there. A cup-shaped electrode plate 41 is placed in the concave groove 40a of the screw-type cap 40.
Outer flange 41a covers the outer peripheral edge of the groove 40a.
A spring plate terminal 4 having one end fixed to the inner periphery of the box-shaped main body 1
2 has a configuration in which the front end thereof is pressed against the outer peripheral flange portion 41 a of the electrode plate 41. Further, a flange 40b is provided at the outer end of the screw cap 40, and an O-ring 40c is provided beside the flange 40b. When the screw cap 40 is screwed into the screw hole 39, O-ring 40c is collar 4
0b and the outer peripheral edge of the screw hole 39, the screw hole 3
9 is hermetically closed.

The ultra-small cold-cathode fluorescent tube 4 has a substantially U-shaped cross section.
18 is covered with a protective case 43 with a letter-shaped reflection sheet.
As shown in the figure, the ultra-small cold cathode fluorescent tube 4 is sandwiched between the curved portions of the locking spring members 44 which are engaged with both ends of the protective case 43 with the reflecting sheet, and the outer periphery of the ultra-small cold cathode fluorescent tube 4 is provided with a reflecting sheet. The protective case 43 is supported. The back of the protective case 43 with a reflective sheet is provided with a ridge 4 in the longitudinal direction.
3a is provided so that the protective case 43 with the reflection sheet does not rotate when these are inserted into the groove-shaped concave portion 2 of the above embodiment. Then, the ultra-small cold-cathode fluorescent tube 4 covered with the protective case 43 with the reflection sheet is inserted into the groove-shaped recess 2 from the screw hole 39, and one end of the ultra-small cold-cathode fluorescent tube 4 is connected to the support electrode 38. The screw type cap 40 is inserted into the cap 38b, and the screw type cap 40 is screwed into the screw hole 39.
As a result, the other end of the ultra-small cold cathode fluorescent tube 4 enters the concave groove 40a of the screw type cap 40, and contracts the coil spring 38a of the support electrode 38. Thus, one end of the ultra-small cold cathode fluorescent tube 4 is supported by the support electrode 38 and the other end is supported by the electrode plate 41, and are electrically connected to each other. The electrode plate 41 and the spring plate terminal 42 are also electrically connected.

In the above embodiment, the main body mounting plate is fixed to the back surface of the box-shaped main body of the surface-emitting illuminating body, and the main body mounting plate is fixed to the ceiling plate and fixed by the hinge provided on the cover plate. However, the present invention is not limited to this, and one end of the back surface of the box-shaped main body may be directly attached to one end of a hinge attached to the ceiling. The frame-shaped cover 26 has an opening 2 on its bottom surface.
6a, the opening 26a is provided with the opening 2
There may be a case where a transparent plate for closing 6a is provided. If the transparent plate is provided, the surface light-emitting illuminating body is covered with the hermetically-covered cover, thereby preventing dust and the like from entering the surface light-emitting illuminating body. Further, in the above-described embodiment, the example in which the surface-emitting illuminator is attached to the ceiling plate is shown. However, the present invention is not limited to the ceiling plate, and can be attached to a ceiling or the like including an appropriate support plane such as a vertical side wall.

[0018]

According to the first aspect of the present invention, when the screw at the free end of the lid-like cover is removed from the ceiling, the cover rotates about its one end under its own weight and hangs down from the ceiling. When the screw at the free end of the box-shaped main body of the surface-emitting illuminating body is removed, the box-shaped main body also rotates about its one end under its own weight and hangs down. At this time, the hinge of the cover and the hinge of the box-shaped main body are shifted so that the side of the box-shaped main body for attaching and detaching the ultra-small cold cathode fluorescent tube is exposed, and the ultra-small cold-cathode fluorescent tube is Small cold cathode fluorescent tubes can be replaced. When this is completed, the free end of the box-shaped main body can be lifted again and fixed to the ceiling with screws, and further, the free end of the cover can be lifted and fixed to the ceiling with screws.
Accordingly, it is possible to extremely easily attach and detach the surface-emitting illuminating body having the cover covering the outside of the surface-emitting illuminating body to a ceiling or the like. Further, in addition to the above, since the box-shaped main body of the thin surface-emitting illuminating body is covered with a cover from the outside, the cover can be made thinner, and can cooperate with the thin appearance of the surface-emitting illuminating body.

According to a second aspect of the present invention, in addition to the effects of the first aspect of the present invention, a main body mounting plate is previously fixed to the back surface of the box-shaped main body of the surface-emitting illuminating body, and the main body mounting plate is interposed therebetween. Since the surface light-emitting illuminator is fixed to the ceiling or the like with screws, there is no risk of damaging the surface light-emitting illuminator at the time of mounting, and the work of attaching to and removing from the ceiling or the like is easier. In addition, the hinge for attaching the box-shaped body and the hinge for attaching the cover are attached to both sides of the plate, and to attach this cover to the ceiling,
The installation work is easier than those in which each of these hinges is directly mounted on the ceiling. Further, in addition to the above, since the box-shaped main body of the thin surface-emitting illuminating body is covered with a cover from the outside, the cover can be made thinner, and can cooperate with the thin appearance of the surface-emitting illuminating body.

[Brief description of the drawings]

FIG. 1 is a schematic exploded configuration diagram of a first embodiment of a surface-emitting illuminator used in the present invention.

FIG. 2 is a front view of the upper half portion of the first embodiment of the surface-emitting illuminator used in the present invention with the transparent cover 10 and the packing material 9 removed.

FIG. 3 is a side view of an upper half portion of the first embodiment of the surface-emitting illuminator used in the present invention.

FIG. 4 is an enlarged perspective view showing a structure of a support electrode and a corner of a groove-shaped concave portion of a box-shaped main body into which the support electrode is fitted in the first embodiment of the surface-emitting illuminator used in the present invention. is there.

FIG. 5 is an enlarged front view showing a state in which a support electrode is fitted into a corner of a groove-shaped concave portion of a box-shaped main body in the first embodiment of the surface-emitting illuminator used in the present invention.

FIG. 6 is an enlarged front view showing a cap, a sandwiching electrode, and one end of a microminiature cold-cathode fluorescent tube of the first embodiment of the surface-emitting illuminator used in the present invention.

FIG. 7 shows a first embodiment of a surface-emitting illuminator used in the present invention, in which a cap having one end of a microminiature cold-cathode fluorescent tube supported by a clamping electrode is fitted into a small through hole of a box-shaped main body. FIG. 4 is an enlarged front view showing a folded state.

FIG. 8 is a bottom view of the embodiment of the present invention, showing a state where the caulking plate and the main body mounting plate are mounted on the ceiling plate.

FIG. 9 is a bottom view showing a state in which the box-shaped main body of the surface-emitting illuminator is mounted on the main body mounting plate mounted on the ceiling according to the embodiment of the present invention.

FIG. 10 is a bottom view of the frame-shaped cover according to the embodiment of the present invention.

FIG. 11 is a front view of the embodiment of the present invention, showing a state in which the surface-emitting lighting body is mounted on a ceiling.

FIG. 12 is a bottom view of the embodiment of the present invention, showing a state in which the surface-emitting lighting body is mounted on a ceiling.

FIG. 13 is a front view of the embodiment of the present invention, showing a state in which one end of the surface-emitting illuminator attached to the ceiling is detached from the ceiling and is hung down with a hinge at the other end.

FIG. 14 is an enlarged front view showing a hinge portion of the embodiment of the present invention in which one end of a surface-emitting illuminator attached to a ceiling is detached from the ceiling and hung at the other end.

FIG. 15 is a bottom view of the embodiment of the present invention, showing a state where one end of the surface-emitting illuminator attached to the ceiling is detached from the ceiling and is hung down with a hinge at the other end.

FIG. 16 is a schematic exploded view of another example of the surface-emitting illuminator used in the present invention.

FIG. 17 is a cross-sectional view of a main part of another example of the surface-emitting illuminator used in the present invention, showing a state in which a screw cap is screwed into a screw hole instead of a small through-hole of the box-shaped main body.

FIG. 18 is a cross-sectional view of another example of the surface-emitting illuminator used in the present invention, showing a state in which a protective case with a reflection sheet is covered on the outer periphery of a microminiature cold cathode fluorescent tube.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Box-shaped main body 1a Opening concave part 1b Control device accommodating concave part 2 Groove-shaped concave part 3 Reflection sheet 4 Small cold cathode fluorescent tube 5 Member constituting light emitting surface 10 Transparent cover plate 12 Groove 13 Small through hole 15 Cap 20 Ceiling plate 21 Hinge Reference Signs List 22 flap plate 23 body mounting plate 24 screw 25 hinge 26 frame cover 27 screw 38 support electrode 39 screw hole 40 screw cap

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-99009 (JP, A) JP-A-6-51293 (JP, A) JP-A-11-39921 (JP, A) JP-A-11-99 134921 (JP, A) Japanese Utility Model Hei 5-7538 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F21S 2/00 F21S 8/04 F21V 8/00 601

Claims (2)

(57) [Claims] 1. A flat box-shaped main body having an opening concave bottom surface as a reflection surface, and a micro cold cathode fluorescent tube provided on one side of the concave portion.
In the surface-emitting illuminating body formed by inserting a member constituting a light-emitting surface for closing the recess, the attachment and detachment of the ultra-small cold-cathode fluorescent tube is performed from a side surface of the box-shaped main body. One end of the hinge is fixed to the edge where the side of the cold-cathode fluorescent tube does not detach and the back surface intersects, the other end is fixed to the ceiling, etc., and the box-type main body is rotatable around the hinge. The free end of the mold body is detachably fixed to the ceiling or the like with screws, and one end of a lid-shaped cover covering the outer periphery of the box-shaped body is fixed to one end of a hinge fixed to the ceiling or the like outside the hinge. And make the cover rotatable around the hinge,
A structure for attaching a surface-emitting illuminator to a ceiling or the like, wherein a free end of the cover is detachably fixed to a ceiling or the like outside the free end of the box-shaped main body with screws. 2. An ultra-small cold-cathode fluorescent tube is provided on one side of this concave portion as a reflecting surface, and the bottom surface of the open concave portion of the flat box-shaped main body is provided as a reflecting surface.
In the surface-emitting illuminating body formed by inserting a member constituting a light-emitting surface that closes the recess, the ultra-small cold-cathode fluorescent tube is attached and detached from a hole with a lid provided on a side surface of the box-shaped main body. And the other end of the body mounting plate fixed to the back of the box-shaped main body is attached to the hinge provided on one side of the caulking plate. Rotate around the hinge, position the side of the box-shaped main body with the hole with the lid on the free end side of the main body mounting plate, and set the free end of the main body mounting plate that protrudes outward from the box-shaped main body, It is detachably fixed to the ceiling or the like with screws, and one end of a lid-like cover covering the outer periphery of the box-shaped main body is attached to one end of a hinge provided on the other side of the cover plate located outside the hinge. Attach, this cover is rotatable around hinges, the free end of this cover Characterized in that the Tan'enshita pieces were detachably screwed to the outside of the ceiling or the like from the free end of the body mounting plate, the mounting of the ceiling or the like of the surface-emitting lighting structure.