JP7170206B2 - Light fixtures and lighting devices - Google Patents

Description

The present invention relates to lamps and lighting devices.

When installing multiple large and thin lighting fixtures next to each other, if there is distortion in the building material (e.g. ceiling surface or wall surface) to which the lighting fixtures are attached, there may be a step between adjacent lighting fixtures. be. This can degrade the quality of the product.

For example, in Patent Document 1, when connecting two lighting units, a protrusion provided on the end cover of one lighting unit is inserted into an insertion hole provided on the end cover of the other lighting unit. A configuration is disclosed.

JP 2018-185910 A JP-A-7-99006

For example, when two or more sides of a rectangular lamp are adjacent to two or more other lamps, the connection method disclosed in Patent Document 1 complicates the specifications of each lamp.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lamp and a lighting device capable of suppressing a step between adjacent lamps.

According to one aspect of the present invention, a lamp includes a chassis having a light source arrangement surface and a back surface opposite to the light source arrangement surface, and a lamp main body having a plurality of light sources arranged on the light source arrangement surface. , a first magnet or a first magnetic body fixed to the rear surface of the chassis, and a second magnet or a second magnetic body fixed to the lamp mounting surface of the building material. The lamp body includes an adapter arranged in a mounting hole formed in the building material. The first magnet can be attracted to the second magnet or the second magnetic body, or the first magnetic body can be attracted to the second magnet.
According to another aspect of the present invention, a lighting device includes a first lamp, a second lamp, and a connecting member that is a magnetic material or a magnet. Each of the first lamp and the second lamp has a chassis having a light source arrangement surface and a back surface opposite to the light source arrangement surface, and a plurality of light sources arranged on the light source arrangement surface. A lamp main body and a first magnet or a first magnetic body fixed to the rear surface of the chassis are provided. The lamp body includes an adapter arranged in a mounting hole formed in the building material. The first lamp and the second lamp are adjacent to each other with their longitudinal ends in contact with each other, and the connecting member is connected between the ends of the first lamp and the second lamp. It is arranged on the rear surface of the chassis of each of the first lamp and the second lamp so as to straddle the boundary, and is attracted to the first magnet or the first magnetic body.

According to the present invention, it is possible to suppress the difference in level between the lamps installed adjacent to each other.

1 is a perspective view schematically showing a state in which a lamp according to an embodiment of the present invention is installed on a ceiling board; FIG. FIG. 3 is a perspective view schematically showing a method of attaching the lamp to the ceiling panel according to one embodiment of the present invention; FIG. 2 is a side view schematically showing a state in which the lamp of one embodiment of the present invention is installed on the ceiling panel; 4 is a perspective view schematically showing an element arranged on the back side of the ceiling plate among the elements shown in FIG. 3; FIG. 1 is a plan view schematically showing a light emitting surface side of a light source module according to one embodiment of the present invention; FIG. It is a sectional view showing typically the light source module of one embodiment of the present invention. FIG. 2 is a plan view schematically showing part of the back surface of the lamp according to one embodiment of the present invention; FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7; It is a perspective view which shows typically the mounting bracket of one Embodiment of this invention. It is a perspective view which shows typically the fitting structure of the mounting bracket of one Embodiment of this invention, and an adapter. It is a cross-sectional perspective view which shows typically the fitting structure of the mounting bracket of one Embodiment of this invention, and an adapter. FIG. 3 is a plan view schematically showing a state in which the magnetic body of one embodiment of the present invention is fixed to the ceiling plate; FIG. 10 is a back view schematically showing a lighting fixture according to another embodiment of the present invention; FIG. 4 is a side view schematically showing a lighting fixture according to another embodiment of the present invention; FIG. 6 is a perspective view schematically showing an enlarged part of a lighting fixture according to another embodiment of the present invention; FIG. 11 is a perspective view schematically showing an enlarged part of a lighting fixture according to still another embodiment of the present invention; FIG. 4 is a plan view schematically showing another example of the light source module according to the embodiment of the invention; FIG. 4 is a perspective view schematically showing another example of the light source according to the embodiment of the invention; FIG. 11 is a perspective view schematically showing the back surface of a lamp according to still another embodiment of the present invention; FIG. 20 is a rear view schematically showing adjacent portions of the two lamp fixtures shown in FIG. 19; 20B is a rear view of FIG. 20A with a connecting member added; FIG. FIG. 20 is a side view schematically showing adjacent portions of the two lamp fixtures shown in FIG. 19;

Hereinafter, embodiments will be described with reference to the drawings. In addition, the same code|symbol is attached|subjected to the same element in each drawing.

FIG. 1 is a perspective view schematically showing a state in which a lamp 100 according to one embodiment of the present invention is installed on a ceiling board 300 as a building material.

In the example shown in FIG. 1, four lamps 100 are installed on the ceiling board 300 . Each lamp 100 has a square shape in a plan view, for example, and four lamps 100 are arranged to form a square light-emitting surface larger than one lamp 100 as a whole. Two different sides of one lamp 100 are adjacent to one side of the other lamp 100 . The number of lamps 100 arranged side by side on the ceiling plate 300 may be three or less, or may be five or more.

FIG. 2 is a perspective view schematically showing a method of attaching one lamp 100 to the ceiling panel 300. As shown in FIG.

A mounting hole 300 a is formed in the ceiling plate 300 . The mounting hole 300 a is, for example, a circular hole that is smaller than the light emitting surface of the lamp 100 .

The mounting bracket 60 is fitted into the mounting hole 300a. An adapter 40 is provided at the center of the rear surface of the lamp 100 facing the ceiling plate 300 . This adapter 40 is arranged in the mounting hole 300a. Specifically, the lamp 100 is attached to the ceiling plate 300 by fitting the adapter 40 into the mounting bracket 60 fitted into the mounting hole 300a.

A magnet 1 is fixed to the rear surface of the lamp 100 . For example, four magnets 1 are fixed at positions near the four corners on the rear surface of the lamp 100 . On the other hand, the magnetic body 2 is fixed to the lamp mounting surface of the ceiling plate 300 . Four magnetic bodies 2 are fixed to the ceiling plate 300 in correspondence with the four magnets 1 .

The magnet 1 is a permanent magnet and contains neodymium, for example. The magnetic body 2 is a metal plate magnetized by the magnetic force of the magnet 1, and contains iron, for example.

When the lamp 100 is attached to the ceiling board 300 via the adapter 40 , the magnet 1 fixed to the lamp 100 is attracted to the magnetic body 2 fixed to the ceiling board 300 . When the lamp 100 is installed on the ceiling panel 300, the magnet 1 and the magnetic body 2 are not visible to the user.

FIG. 3 is a side view schematically showing a state in which one lamp 100 is installed on the ceiling panel 300. As shown in FIG.
FIG. 4 is a perspective view schematically showing elements arranged on the back side of the ceiling plate 300 among the elements shown in FIG.

The upper surface of the adapter 40 is exposed to the space behind the ceiling plate 300 . A lamp-side connector 43 having a socket structure, for example, is fixed to the upper surface of the adapter 40 . A power supply unit 50 is arranged in the space on the back side of the ceiling plate 300 . The power supply unit 50 has terminal blocks 52 and 53 that can be connected to an external power supply. An electric cable 51 is led out from the power supply unit 50 . Terminals of the terminal blocks 52 and 53 are electrically connected to a circuit board of the power supply unit 50, and an electric cable 51 is electrically connected to the circuit board. A power-side connector 51 a is provided at the end of the electric cable 51 , and the power-side connector 51 a is connected to the lamp side connector 43 .

FIG. 5 is a plan view schematically showing the light emitting surface side of the light source module 20. As shown in FIG.
FIG. 6 is a cross-sectional view schematically showing the light source module 20. As shown in FIG.
FIG. 7 is a plan view schematically showing part of the back surface of the lamp 100. FIG.
8 is a cross-sectional view taken along line VIII-VIII in FIG. 7. FIG.

The lamp 100 has a lamp main body 10 , an adapter 40 , an adapter fixing member 80 and an adapter pressing member 70 .

As shown in FIG. 6 , the lamp main body 10 has a chassis 11 , a light source module 20 and a translucent cover 30 .

The chassis 11 has a light source placement surface 11a and a back surface 11b opposite to the light source placement surface 11a. The light source module 20 is attached to the light source placement surface 11 a of the chassis 11 , and the cover 30 is attached to the chassis 11 so as to cover the light source module 20 . The chassis 11 is, for example, a metal plate, and functions as a reinforcing plate and a radiator plate for the light source module 20 .

The light source module 20 has at least a plurality of light sources 22 , for example a substrate 21 and a plurality of light sources 22 . The rear surface 21 b of the substrate 21 contacts the light source arrangement surface 11 a of the chassis 11 . As shown in FIG. 5 , the plurality of light sources 22 are periodically arranged on the light source arrangement surface 21 a of the substrate 21 . The light source 22 includes a light emitting element 23 such as an LED (Light Emitting Diode), a phosphor layer 24, and a resin member 25, for example. The light-emitting element 23 is electrically connected to a lamp-side connector 43 provided on the upper surface of the adapter 40 via a conductor pattern formed on the substrate 21 .

The phosphor layer 24 is made of, for example, translucent resin containing a wavelength conversion member. The phosphor layer 24 covers the light emitting element 23 , and the phosphor layer 24 is covered with a translucent resin member 25 . A portion of the resin member 25 covering the vicinity of the center of the upper surface of the light emitting element 23 is recessed, and the resin member 25 having such a shape functions as a lens that gives the light source 22 a batwing-shaped light distribution characteristic.

The cover 30 has translucency with respect to the light emitted by the light source 22 . The cover 30 has a light diffusing property, for example, by dispersing titanium oxide or the like in a translucent resin member, and is milky white in color.

As shown in FIG. 8, the adapter 40 is fixed on the adapter fixing member 80. As shown in FIG. The adapter 40 is screwed to the adapter fixing member 80, for example. The adapter fixing member 80 is a metal plate, such as an aluminum plate.

An adapter pressing member 70 is fixed to the rear surface 11 b of the chassis 11 . The adapter holding member 70 is, for example, an electrogalvanized steel plate.

The adapter pressing member 70 has a lower portion 72 and an upper portion 71 . The lower part 72 is screwed to the chassis 11, for example. The upper step portion 71 is positioned farther from the back surface 11 b of the chassis 11 than the lower step portion 72 , and a space is formed between the upper step portion 71 and the back surface 11 b of the chassis 11 . An adapter fixing member 80 is arranged in that space.

The adapter fixing member 80 has an outer edge 80a. A gap 73 is formed between the outer edge portion 80 a and the lower step portion 72 of the adapter pressing member 70 . The space between the upper stage portion 71 and the rear surface 11b of the chassis 11 is open in the direction penetrating through the plane of FIG.

As shown in FIG. 7, an upper portion 71 of the adapter holding member 70 is formed with an opening 71a. The adapter 40 is positioned within the opening 71a. In the top view shown in FIG. 7 , the adapter fixing member 80 is hidden under the adapter 40 and under the upper stage portion 71 of the adapter pressing member 70 . An outer edge portion 80a of the adapter fixing member 80 is located outside the edge of the opening 71a.

As shown in FIG. 8 , a portion of the adapter fixing member 80 is sandwiched between the upper step portion 71 of the adapter pressing member 70 and the rear surface 11 b of the chassis 11 and is not fixed to the chassis 11 . That is, the adapter 40 fixed to the adapter fixing member 80 and the lamp main body 10 are relatively movable in a direction parallel to the back surface 11 b of the chassis 11 . Movement here includes not only linear movement but also rotational movement.

Due to the gap 73 between the outer edge portion 80a of the adapter fixing member 80 and the lower step portion 72 of the adapter pressing member 70 and the gap between the edge of the opening 71a formed in the upper step portion 71 and the side surface of the adapter 40, Relative movement of the lamp body 10 with respect to the adapter 40 is allowed. Relative movement of the lamp body 10 with respect to the adapter 40 is restricted by the contact between the outer edge portion 80a of the adapter fixing member 80 and the lower step portion 72 of the adapter pressing member 70 and the contact between the side surface of the adapter 40 and the edge of the opening 71a. be.

If the position of the lamp main body 10 needs to be adjusted after being attached to the ceiling plate 300, the lamp main body 10 is placed on the installation surface (ceiling plate 300) with respect to the adapter 40 and the adapter fixing member 80 fixed to the ceiling plate 300. The mounting position of the lamp main body 10 can be adjusted by sliding (including rotating) along the plane.

Instead of fixing the adapter 40 to the lamp main body 10, the adapter 40 and the lamp main body 10 are made relatively movable so that the outer edge portion 80a of the adapter fixing member 80 and the lower step portion 72 of the adapter pressing member 70 are connected. The gap 73 between the lamp main body 10 and the gap between the edge of the opening 71a formed in the upper step portion 71 and the side surface of the adapter 40 is sufficient for the position adjustment margin formed by the gap 73 between the lamp main body 10 position can be adjusted.

As a result, even if the positions of the mounting holes 300a formed in the ceiling plate 300 vary when the plurality of lamps 100 are arranged side by side, the light emitting surfaces of the plurality of lamps 100 can be arranged seamlessly. become.

FIG. 9 is a perspective view schematically showing the mounting bracket 60 attached to the mounting hole 300a of the ceiling plate 300. As shown in FIG.

The fitting 60 is annular and has an opening 64 therein. A plurality of mounting springs 63 having a leaf spring structure are provided on the side surface of the mounting bracket 60 . An annular flange 61 is provided on the lower surface of the mounting bracket 60 . The outer diameter of the flange 61 is larger than the diameter of the circular mounting hole 300 a formed in the ceiling plate 300 . A receiving plate 62 is provided along the edge of the opening 64 on the upper surface of the flange 61 .

A mounting spring 63 is arranged between the side surface of the mounting bracket 60 and the inner wall of the mounting hole 300a in a state deformed from its natural state. The mounting bracket 60 is urged upward by the restoring force of the mounting spring 63, and the upper surface of the flange 61 presses against the front surface of the ceiling plate 300 (see FIG. 11), so that the mounting bracket 60 fits into the mounting hole 300a. The mated state is maintained.

Before fitting the mounting bracket 60 into the mounting hole 300a, the power supply unit 50 shown in FIGS. The power supply unit 50 is passed through the mounting hole 300a to the back side of the ceiling plate 300, and is arranged on the back side of the ceiling plate 300 at a position not overlapping the mounting hole 300a. Alternatively, if the power supply unit 50 already installed on the back side of the ceiling board 300 is used as it is, the work of installing the power supply unit 50 on the back side of the ceiling board 300 is unnecessary.

Before the lamp fixture 100 is attached to the ceiling plate 300, the electric cable 51 is passed through the attachment hole 300a and the opening 64 inside the attachment bracket 60 fitted in the attachment hole 300a, and the power supply side connector 51a is connected to the ceiling panel 300. It is put out on the front side of the board 300 .

An operator who installs the lamp 100 brings the lamp 100 closer to the ceiling plate 300, holds the lamp 100 with one hand, and uses the other hand to connect the power connector 51a of the electric cable 51 hanging down from the mounting hole 300a. The power supply side connector 51a is connected to the lamp side connector 43 fixed to the upper surface of the adapter 40 by grasping it.

After connecting the power-side connector 51a to the lamp-side connector 43, the adapter 40 is fitted into the inner opening 64 of the mounting bracket 60 fitted into the mounting hole 300a.

FIG. 10 is a perspective view schematically showing a fitting structure between the mounting bracket 60 and the adapter 40. As shown in FIG.
FIG. 11 is a cross-sectional perspective view schematically showing a fitting structure between the mounting bracket 60 and the adapter 40. As shown in FIG.

The adapter 40 has an upper case 41 , a lower case 42 , two slide members 45 , and a spring 47 connecting the two slide members 45 .

A claw portion 44 having an inclined surface is provided at the tip of each slide member 45 . Due to the sliding movement of the two slide members 45 due to the extension and contraction of the spring 47, the claw portion 44 is retracted inside the cases 41 and 42 through the opening formed between the upper case 41 and the lower case 42, and the cases 41 and 42 are retracted. It is possible to protrude outside the

10 and 11 show a state in which the claw portion 44 protrudes outside the cases 41 and 42 and rides on the upper surface of the receiving plate 62 of the mounting bracket 60. FIG. As shown in FIG. 11, a stopper 41a protruding downward from the upper case 41 is positioned in a concave portion 46 formed in the upper surface of the slide member 45, and the contact between the stopper 41a and the wall surface of the concave portion 46 causes two slides to move. The movement of the members 45 in directions separating them from each other is restricted.

Normally, the claw portion 44 protrudes outside the cases 41 and 42 . When the adapter 40 is fitted inside the mounting bracket 60 , the inclined surface of the claw portion 44 is brought into contact with the inner peripheral wall of the flange 61 of the mounting bracket 60 and the inner peripheral wall of the receiving plate 62 . The two slide members 45 compress the springs 47 and slide closer to each other due to the force that the claws 44 receive from the inner peripheral wall of the flange 61 and the inner peripheral wall of the receiving plate 62 . The claw portion 44 is retracted inside the cases 41 and 42 to allow the adapter 40 to be fitted inside the mounting bracket 60 .

When the claw portion 44 moves to a position above the receiving plate 62, the force that the claw portion 44 receives from the inner peripheral wall of the receiving plate 62 is released, and the two slide members 45 are separated from each other by the restoring force of the spring 47. direction. The claw portion 44 protrudes outside the cases 41 and 42 , and the lower surface of the claw portion 44 rides on the upper surface of the receiving plate 62 . This prevents the adapter 40 and the lamp main body 10 fixed to the adapter 40 from falling from the mounting bracket 60 .

When the adapter 40 is fitted to the mounting bracket 60 and the lamp 100 is attached to the ceiling plate 300 , the adapter 40 is positioned above the bottom surface of the building material (in this example, the bottom surface of the ceiling plate 300 ) and the chassis 11 The magnet 1 (shown in FIG. 2) fixed to the rear surface 11b of the ceiling plate 300 is attracted to the magnetic body 2 fixed to the ceiling plate 300. As shown in FIG.

The rear surface of the lamp main body 10 is brought into close contact with the ceiling plate 300 via the magnet 1. - 特許庁As a result, when a plurality of lamps 100 are arranged side by side, a step between adjacent lamps 100 can be suppressed, and a seamless large-area light-emitting surface can be obtained.

The attraction between the magnet 1 and the magnetic body 2 is in the height direction, and does not hinder the horizontal movement of the lamp body 10 along the ceiling surface with respect to the adapter 40 fixed to the ceiling plate 300 . Therefore, in a state in which the magnet 1 and the magnetic body 2 are attracted to each other, the in-plane position of the lamp body 10 can be adjusted by moving the lamp body 10 in the plane direction with respect to the adapter 40 as described above. .

The shape of the lamp main body 10 in a plan view is a quadrangle (for example, a square), and the adapter 40 is arranged in the central portion of the lamp main body 10 . In such a configuration, especially when the planar size of the lamp 100 is large, the peripheral side portions (side portions and four corners) far from the central portion where the adapter 40 attached to the ceiling plate 300 is arranged tend to be lowered.

Each of the four magnets 1 is arranged at a position closer to the outer periphery (for example, four corners) of the lamp main body 10 than the adapter 40 is. By attracting these magnets 1 to the magnetic body 2 fixed to the ceiling plate 300 , the outer peripheral portion of the lamp fixture 100 having a large planar size can be brought into close contact with the ceiling plate 300 .

The ceiling board 300 is often made of, for example, a gypsum board. Anchor members are first driven into such a gypsum board. The magnetic body 2 is superimposed on the ceiling plate 300 so as to cover the anchor member driven into the ceiling plate 300, and the screw 6 is screwed into the anchor member through the magnetic body 2 as shown in FIG. The magnetic body 2 is pressed against the ceiling plate 300 by the head of the screw 6 . On the back side of the ceiling plate 300, a pair of legs of the anchor member are opened in a direction away from each other by screwing in the screws 6, thereby preventing the anchor member from coming off the gypsum board. As a result, the magnetic body 2 can be firmly screwed even to a fragile member such as a gypsum board.

Alternatively, a magnetic body may be fixed to the lamp fixture 100 and a magnet may be fixed to the ceiling plate 300 to attract them. Alternatively, a magnet may be fixed to the lamp 100 and a magnet may also be fixed to the ceiling plate 300 to attract them.

In addition, since there is a concern that the magnet may be damaged when the installer of the lamp 100 screws the magnet to the ceiling plate 300, a magnetic material (for example, a metal plate such as iron) is fixed to the ceiling plate 300. However, it is desirable to fix the magnet (for example, by screwing) to the lamp 100 at the manufacturing stage in the factory.

In addition, in order to secure the in-plane positional adjustment margin after attachment as described above, the size of one of the attracting surfaces of the magnet and the magnetic body (or magnet) to be attracted to it should be the same as the size of the attracting surface of the other. It is desirable to make it larger than

For example, neodymium, which is used as a material for magnets, has the property that when it is thin and has a large area, its magnetic force decreases at temperatures exceeding 50°C. Therefore, when the magnet 1 is fixed to the lamp 100 that generates heat when lit, it is desirable that the size of the attracting surface of the magnetic body 2 fixed to the ceiling plate 300 is larger than the size of the attracting surface of the magnet 1 .

The lamp 100 of the embodiment can be attached to a wall that is parallel or inclined in the vertical direction by the same method as the attachment method to the ceiling plate 300 .

FIG. 13 is a back view schematically showing a lamp fixture 200 according to another embodiment of the invention.
FIG. 14 is a side view schematically showing a lighting fixture 200 according to another embodiment of the invention.
FIG. 15 is an enlarged perspective view schematically showing a portion of the back side of the lamp 200 according to another embodiment of the invention.

The lamp 200 has, for example, an elongated rectangular outer shape, and has a rectangular light emitting surface 231 . The lamp 200 has a rectangular plate-shaped chassis 211 , a translucent cover 230 , an adapter 240 , and a lamp-side connector 243 .

Adapter 240 is fixed to rear surface 211 b of chassis 211 . The adapter 240 protrudes vertically from the rear surface 211b of the chassis 211 . Adapter 240 is, for example, a metal member. The adapter 240 is arranged in the center of the lamp 200 in the longitudinal direction.

The lamp side connector 243 is fixed to the adapter 240 . The lamp-side connector 243 is separated from the rear surface 211 b of the chassis 211 .

Also, the lamp 200 has a light source module similar to that of the above-described embodiment. The light source modules are attached to the light source placement surface opposite to the rear surface 211b of the chassis 211 . The light source of the light source module can include a light emitting element such as an LED and a phosphor layer as in the above-described embodiments. The lamp side connector 243 is electrically connected to the light source via an electric cable 250 .

The cover 230 has translucency with respect to light emitted by the light source. The cover 230 has a light diffusing property in which titanium oxide or the like is dispersed in a translucent resin member such as acrylic, and is milky white in color. A cover 230 is held on the chassis 211 to cover the light source module.

Also in this embodiment, the magnet 201 is fixed to the rear surface 211b of the chassis 211 . As shown in FIG. 14, for example, two magnets 201 are arranged symmetrically so as to longitudinally sandwich an adapter 240 arranged in the center of the lamp 200 in the longitudinal direction. Each magnet 201 is located between the adapter 240 and the longitudinal end 205 of the lamp 200 . Each magnet 201 is positioned closer to end 205 than adapter 240 .

The lamp 200 of this embodiment can be attached to a building material with a ceiling board by means of a magnet 201, but can also be attached to a building material (a metal frame) without a ceiling board. When the frame itself is a magnetic body like a metal frame (when the frame and the magnetic body are integrated), the magnet 201 is directly attracted to the frame. Alternatively, the frame may be separately provided with a magnetic body to which the magnet 201 is attracted. The adapter 240 is arranged in the space (mounting hole) between the frames and positioned above the lowest surface of the building material (in this example, the lower surface of the frame). Using only the attraction force of the magnet 201, the lamp 200 can be easily attached and detached. Alternatively, a magnet may be fixed to the frame, a magnetic body may be fixed to the lamp 200, and the two may be attracted to each other. Alternatively, a magnet may be fixed to the frame and a magnet may be fixed to the lamp 200 to attract them.

As shown in FIG. 13, the magnet 201 provided in the lamp is fixed to a metal fitting 270. As shown in FIG. A long hole 270 a is formed in the fitting 270 along the longitudinal direction of the lamp 200 . A screw 271 is inserted into the elongated hole 270 a and screwed into the chassis 211 . The fastening force of the screw 271 causes the head of the screw 271 to press the metal fitting 270 against the chassis 11 , thereby fixing the magnet 201 to the chassis 211 . By loosening the screw 271 and sliding the fitting 270 in the longitudinal direction of the lamp 200 , the longitudinal position of the magnet 201 with respect to the chassis 211 can be adjusted. The metal fitting 270 and the magnet 201 can be slid in the direction of arrow A by about 10 mm from the state shown in FIG. 13, for example.

Since the lamp-side connector 243 is fixed to the adapter 240, it is possible to prevent the electric cable 250 from being pulled together with the lamp-side connector 243 during mounting work. Therefore, application of stress to the light source module side due to the electric cable 250 being pulled can be prevented.

Further, as shown in FIG. 15, a drop prevention wire 260 is attached to the adapter 240 . By winding the fall prevention wire 260 around a building material (for example, a frame), it is possible to prevent the lamp 200 from unexpectedly falling.

FIG. 16 is an enlarged perspective view of a portion of the back side of the lamp 400 according to still another embodiment of the present invention.

Like the lamp 200, the lamp 400 also has an elongated rectangular shape and a rectangular light-emitting surface. The lamp 400 has a lamp main body 410 , a translucent cover 430 and an adapter 460 .

The lamp main body 410 has a rectangular plate-shaped chassis 411 . An adapter 460 is provided on the rear surface 411 b of the chassis 411 . For example, an adapter 460 is arranged in the center of the lamp 400 in the longitudinal direction. A lamp-side connector 443 having a socket structure, for example, is fixed to the upper surface of the adapter 460 .

The lamp 400 has a light source module similar to that of the above-described embodiment. The light source module is attached to the light source placement surface opposite to the rear surface 411b of the chassis 411 . The light source of the light source module can include a light emitting element such as an LED and a phosphor layer as in the above-described embodiments. The lamp-side connector 443 is electrically connected to the light source via an electric cable.

The cover 430 has translucency with respect to light emitted by the light source. The cover 430 has a light diffusing property in which titanium oxide or the like is dispersed in a translucent resin member such as acrylic, and is milky white in color. A cover 430 is held on the chassis 411 to cover the light source module.

For example, two mounting springs 463 are fixed to the adapter 460 . The mounting spring 463 is screwed to the adapter 460, for example. The two mounting springs 463 are located across the adapter 460 in the longitudinal direction of the chassis 411 .

The adapter 460 has two plate-like protrusions 461 . The two protruding portions 461 are located on both sides of the adapter 460 in the longitudinal direction of the chassis 411 .

For example, two pressing members 440 are fixed to the rear surface 411b of the chassis 411 . Two pressing members 440 are positioned to sandwich the adapter 460 in the longitudinal direction of the chassis 411 .

One end of the holding member 440 farther from the adapter 460 is screwed to the chassis 411, for example. A portion of the pressing member 440 extending from the portion fixed to the chassis 411 toward the adapter 460 is separated from the rear surface 411 b of the chassis 411 and overlaps the projecting portion 461 of the adapter 460 . The projecting portion 461 is arranged in the space between the pressing member 440 and the back surface 411 b of the chassis 411 .

The projecting portion 461 is sandwiched between the pressing member 440 and the rear surface 411 b of the chassis 411 and is not fixed to the chassis 411 . That is, adapter 460 and mounting spring 463 fixed thereto are not fixed to chassis 411 . The mounting spring 463 and the lamp main body 410 are relatively movable in a direction parallel to the rear surface 411b of the chassis 411 .

The adapter 460 and mounting spring 463 are inserted into the space behind the ceiling plate through the mounting holes of the ceiling plate. The adapter 460 is fitted into a mounting hole formed in the ceiling plate and positioned above the bottom surface of the building material (the bottom surface of the ceiling plate in this example). The mounting spring 463 is arranged in a state deformed from its natural state between the side surface of the adapter 460 and the inner wall of the mounting hole of the ceiling plate. The restoring force of the mounting spring 463 urges the adapter 460 upward and fixes it to the ceiling board, and the lamp main body 410 is mounted on the ceiling board so as to be pressed against the front surface (lower surface) of the ceiling board. It should be noted that the lamp 400 can be attached not only to the ceiling plate but also to the wall, as in the above-described embodiment.

The projecting portion 461 of the adapter 460 fixed to the ceiling plate and the pressing member 440 fixed to the lamp main body 410 are not fixed to each other and are relatively movable. That is, the lamp main body 410 can move relative to the adapter 460 fixed to the ceiling panel. Therefore, when the position of the lamp main body 410 needs to be adjusted after installation, the lamp main body 410 is slid along the installation surface (ceiling surface) with respect to the adapter 460 fixed to the ceiling plate. Thus, the mounting position of the lamp main body 410 can be adjusted.

This makes it possible to seamlessly arrange the light-emitting surfaces of the plurality of lamps 400 even if the positions of the plurality of mounting holes formed in the ceiling plate vary when the plurality of lamps 400 are arranged side by side. .

Furthermore, in this embodiment as well, the magnet 201 is fixed to the rear surface 411b of the chassis 411, and the magnetic material is fixed to the ceiling plate. can be brought into close contact with the ceiling panel. As a result, when a plurality of lamps 400 are arranged side by side, a step between adjacent lamps 400 can be suppressed, and a seamless large-area light-emitting surface can be obtained.

Moreover, the attraction between the magnet and the magnetic material is in the height direction, and does not prevent the lamp main body 410 from moving horizontally along the ceiling surface with respect to the adapter 460 attached to the ceiling plate. Therefore, in a state in which the magnet and the magnetic body are attracted to each other, the in-plane position of the lamp body 410 can be adjusted by moving the lamp body 410 in the plane direction with respect to the adapter 460 as described above.

Alternatively, a magnetic body may be fixed to the lamp fixture 400 and a magnet may be fixed to the ceiling plate so that both of them are attracted to each other. Alternatively, a magnet may be fixed to the lamp 400 and a magnet may also be fixed to the ceiling plate to attract them.

The planar shape of the lamps 100, 200, and 400 is not limited to a square, and may be a circle.

The fall prevention wire 260 shown in FIG. 15 attached to the lamp 200 can also be attached to the lamp 100 or the lamp 400 .

FIG. 17 is a plan view schematically showing another example of the light source module 20 of the embodiment.

A plurality of first light sources 22 a and a plurality of second light sources 22 b are periodically arranged on the light source arrangement surface 21 a of the substrate 21 . In FIG. 17, the first light source 22a is indicated by diagonal hatching, and the second light source 22b is indicated by a dot pattern.

FIG. 18 is a perspective view schematically showing the first light source 22a and the second light source 22b.

Each of first light source 22 a and second light source 22 b includes light emitting element 23 , phosphor layer 24 , and translucent resin member 25 . A phosphor layer 24 covers the light emitting element 23 , and a resin member 25 covers the phosphor layer 24 . The part of the resin member 25 that covers the vicinity of the center of the upper surface of the light emitting element 23 is recessed, and the resin member 25 having such a shape functions as a lens that gives the light sources 22a and 22b the aforementioned batwing-shaped light distribution characteristics. .

The first light source 22a and the second light source 22b have the same elements, but emit white light with different correlated color temperatures. For example, the first light source 22a can emit white light with a correlated color temperature of 2700K, and the second light source 22b can emit white light with a correlated color temperature of 5000K. By adjusting these and emitting light, the light source module 20 can emit white light with various correlated color temperatures.

As shown in FIG. 17, a plurality of sets of light sources each including one first light source 22a and one second light source 22b arranged close to each other in a first direction (vertical direction in FIG. 17) are arranged. there is A plurality of sets of light sources arranged in the first direction are electrically connected in series. A plurality of sets of light sources arranged in a second direction (horizontal direction in FIG. 17) orthogonal to the first direction are in an electrically parallel relationship.

FIG. 19 is a perspective view schematically showing the back surface of a lamp fixture 500 according to still another embodiment of the present invention.

The lamp 500 has a lamp main body 410, a translucent cover 430, and an adapter 460, like the lamp 400 shown in FIG. The lamp main body 410 has a rectangular plate-shaped chassis 411 . Moreover, the lamp 500 has a light source module similar to that of the above-described embodiment. The light source module is attached to the light source placement surface opposite to the rear surface 411b of the chassis 411 . The light source of the light source module can include a light emitting element such as an LED and a phosphor layer as in the above-described embodiments. The lamp side connector 443 is electrically connected to the light source.

Two adapters 460 are provided on the rear surface 411 b of the chassis 411 . A lamp-side connector 443 is fixed to the upper surface of one adapter 460 . Two adapters 460 are arranged apart in the longitudinal direction of the chassis 411 across the longitudinal center of the chassis 411 .

For example, two magnets 202 are fixed to the rear surface 411b of the chassis 411 . Magnet 202 is a permanent magnet, such as neodymium, similar to the magnets of the previous embodiments. Each magnet 202 is located closer to the longitudinal end of the lamp 500 than the adapter 460 is.

FIG. 20A is a back view schematically showing adjacent portions of two lamp fixtures 500. FIG.
FIG. 20B is a rear view of FIG. 20A with the connecting member 203 added.
FIG. 21 is a side view schematically showing adjacent portions of two lamps 500. FIG.

The lighting device has at least two lamps 500 . The two lamp fixtures 500 can be attached to the ceiling panel 300 in a state where they are adjacent to each other with their longitudinal ends in contact with each other. Two adjacent lamps 500 are attached to the ceiling plate 300 via adapters 460, respectively.

A connecting member 203 is attached to the adjacent portion of the two lamps 500 in common to the two lamps 500 . The connecting member 203 is arranged on the rear surface 411b of the chassis 411 near the ends of the two lamps 500 so as to straddle the boundary between the ends of the lamps 500 . The arrangement position of the connecting member 203 and the arrangement position of the magnet 202 overlap. The connecting member 203 is a magnetic material, and is, for example, a plate member made of an electrogalvanized steel plate. Therefore, the connecting member 203 is attracted to the magnets 202 fixed near each end of the adjacent lamps 500 .

The thickness of the connecting member 203 is, for example, 0.6 mm. As shown in FIG. 21 , when the lamp 500 is attached to the ceiling plate 300 , the connecting member 203 can be accommodated in the gap between the rear surface 411 b of the chassis 411 and the ceiling plate 300 .

The ends of the two lamp fittings 500 adjacent to each other are attracted to the common connecting member 203 by the magnets 202, and a step ( misalignment) can be regulated. As a result, for example, even if the ceiling plate is distorted or the end of the lamp 500 is likely to be displaced downward due to gravity, the two adjacent parts of the lamp 500 do not form a step. In other words, it is possible to give a sense of unity between the light emitting surfaces of the two adjacent lamps 500 without being conscious of the seams.

The connecting member 203 is not fixed to the ceiling plate 300, and the horizontal movement of the lamp main body 410 along the ceiling surface with respect to the adapter 460 attached to the ceiling plate 300 is not hindered. Therefore, by moving the lamp body 410 in the plane direction with respect to the adapter 460 as described above, the in-plane position of the lamp body 410 can be adjusted.

Here, the connection member 203 is a magnetic material, and the first magnet 202 is fixed to the rear surface 411 b of the chassis 411 . A form in which a magnetic body is fixed to the back surface 411b may be used. However, since the connecting member 203 is required to be thin, for example 0.6 mm, and has a high strength, it is preferable to use a magnetic material for the connecting member 203 . Further, the connecting structure of two lamps using the connecting member 203 is not limited to the connection of long rectangular lamps, but can also be applied to the case where square lamps are adjacent to each other as shown in FIG. can be done.

Further, as shown in FIG. 19, a second magnet (magnet for attraction to the ceiling plate) 204 separate from the first magnet 202 that is attracted to the connecting member 203 is fixed to the rear surface 411b of the chassis 411 and attached to the ceiling plate 300. By fixing the magnetic bodies and attracting them, the part of the lamp 500 far from the central part may be brought into close contact with the ceiling plate 300 by the magnet 204 (a magnet different from the magnet 202). Alternatively, a magnetic body may be fixed to the lamp fixture 500 and a magnet may be fixed to the ceiling plate 300 to attract them. Alternatively, a magnet may be fixed to the lamp 500 and a magnet may also be fixed to the ceiling plate 300 to attract them.

The embodiments of the present invention have been described above with reference to specific examples. However, the invention is not limited to these specific examples. Based on the above-described embodiment of the present invention, all forms that can be implemented by those skilled in the art by appropriately designing and changing are also included in the scope of the present invention as long as they include the gist of the present invention. In addition, within the scope of the idea of the present invention, those skilled in the art can conceive of various modifications and modifications, and it is understood that these modifications and modifications also belong to the scope of the present invention. .

DESCRIPTION OF SYMBOLS 1... Magnet 2... Magnetic body 10... Lamp main body 11... Chassis 20... Light source module 22... Light source 30... Cover 40... Adapter 50... Power supply unit 60... Mounting bracket 70... Adapter holding member , 80... Adapter fixing member 100... Lamp 200... Lamp 201... Magnet 202... Magnet 203... Connecting member 204... Magnet 211... Chassis 240... Adapter 243... Lamp side connector 250... Electricity Cable 260 Fall prevention wire 300 Ceiling plate 400 Lamp 410 Lamp body 411 Chassis 440 Pressing member 443 Lamp side connector 460 Adapter 463 Mounting spring 500 Lamp

Claims (12)

a lamp main body having a chassis having a light source arrangement surface and a back surface opposite to the light source arrangement surface; and a plurality of light sources arranged on the light source arrangement surface;
a first magnet or a first magnetic body fixed to the rear surface of the chassis;
a second magnet or a second magnetic body fixed to the installation surface of the building material;
with
The lamp main body includes an adapter arranged in a mounting hole formed in the building material,
The first magnet can be attracted to the second magnet or the second magnetic body, or
The first magnetic body is a lamp that can be attracted to the second magnet. 2. The lighting fixture according to claim 1, wherein the first magnet is fixed to the rear surface of the chassis, and the second magnetic body is fixed to the lighting fixture installation surface of the building material. 3. The lamp according to claim 2, wherein the size of the surface to which the second magnetic body is attracted is larger than the size of the surface to which the first magnet is attracted. an adapter fixing member fixed to the adapter;
an adapter pressing member fixed to the rear surface of the chassis;
further comprising
4. The adapter fixing member according to claim 1, wherein said adapter fixing member is sandwiched between said rear surface of said chassis and said adapter pressing member, and is movable in a direction parallel to said rear surface of said chassis. of lamps. In plan view,
The adapter is arranged in the central part of the lamp body,
The lamp according to any one of claims 1 to 4, wherein the first magnet or the first magnetic body is arranged at a position closer to the outer periphery of the lamp main body than the adapter. The plan view shape of the lamp body is a quadrangle,
The adapter is arranged in the central part of the lamp body,
The lamp according to any one of claims 1 to 4, wherein the first magnet or the first magnetic body is arranged at a position closer to a corner of the lamp main body than the adapter. The plan view shape of the lamp body is a quadrangle,
The adapter is arranged in the central part of the lamp body,
The lamp according to any one of claims 1 to 4, wherein the first magnet or the first magnetic body is arranged at a position closer to the four corners of the lamp main body than the adapter. a connector secured to the adapter;
an electrical cable connecting the connector and the light source;
The lamp according to any one of claims 1 to 7, further comprising: The lamp according to any one of claims 1 to 8, further comprising a fall prevention wire attached to said adapter. A lighting device comprising a first lamp, a second lamp, and a connecting member that is a magnetic material or a magnet,
Each of the first lamp and the second lamp is
a lamp main body having a chassis having a light source arrangement surface and a back surface opposite to the light source arrangement surface; and a plurality of light sources arranged on the light source arrangement surface;
a first magnet or a first magnetic body fixed to the back surface of the chassis;
The lamp main body includes an adapter arranged in a mounting hole formed in a building material,
The first lamp and the second lamp are adjacent to each other with their ends abutting, and the connecting member straddles the boundary between the ends of the first lamp and the second lamp. , the lighting device is arranged on the rear surface of the chassis of each of the first lamp and the second lamp and is attracted to the first magnet or the first magnetic body. 11. The lighting device according to claim 10, wherein the connecting member is a magnetic body, and the first magnet is fixed to the rear surface of the chassis. Each of the first lamp and the second lamp is
a second magnet or a second magnetic body fixed to the rear surface of the chassis;
a third magnet or a third magnetic body fixed to the lighting installation surface of the building material;
further comprising
The second magnet can be attracted to the third magnet or the third magnetic body, or
The lighting device according to claim 10 or 11, wherein the second magnetic body can be attracted to the third magnet.

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