JP7174930B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to lighting fixtures having light-emitting elements such as LEDs (Light Emitting Diodes).

In recent years, lighting fixtures using LEDs have rapidly spread. As an example of such a lighting fixture, Patent Literature 1 discloses a so-called bracket-type lighting fixture installed on the wall of a hospital room or guest room.

JP 2015-222692 A

Miniaturization is a problem for the lighting fixtures as described above.

The present invention provides a lighting fixture that can be easily miniaturized.

A lighting fixture according to an aspect of the present invention includes a first light emitting device, a second light emitting device, a first plate having a first mounting surface on which the first light emitting device is mounted, and the second light emitting device A main body portion including a second plate having a second mounting surface on which the device is mounted, a first power supply device that supplies power to the first light emitting device, and a second power source that supplies power to the second light emitting device and a mounting member interposed between the main body and the structure for mounting the main body to the structure, the mounting member having a mounting surface facing the structure. , the first mounting surface and the second mounting surface are respectively inclined with respect to the mounting surface, and the first power supply device and the second power supply device are mounted on the first plate on the It is arranged between the surface opposite to the first mounting surface and the surface of the second plate opposite to the second mounting surface.

ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture which is easy to reduce in size is implement|achieved.

FIG. 1 is a diagram showing a usage example of a lighting fixture according to an embodiment. FIG. 2A is a diagram for explaining a base lighting mode of the lighting fixture according to the embodiment; FIG. 2B is a diagram for explaining a reading light mode of the lighting fixture according to the embodiment; FIG. 2C is a diagram for explaining a night-light mode of the lighting fixture according to the embodiment; FIG. 3 is an external perspective view when the lighting fixture according to the embodiment is viewed from above. FIG. 4 is an exploded perspective view when the lighting fixture according to the embodiment is viewed from above. FIG. 5 is an external perspective view when the lighting fixture according to the embodiment is viewed from below. FIG. 6 is an exploded perspective view when the lighting fixture according to the embodiment is viewed from below. FIG. 7 is a schematic cross-sectional view of the lighting fixture according to the embodiment, taken along a plane perpendicular to the longitudinal direction. FIG. 8 is a diagram showing notches provided at the ends of the grooves of the first plate in the longitudinal direction. FIG. 9 is a diagram showing the structure of the surface of the mounting member on the main body side. FIG. 10 shows an opening in the second plate through which the light emitted by the bulb passes;

Hereinafter, embodiments will be described with reference to the drawings. All of the embodiments described below are generic or specific examples. Numerical values, shapes, materials, constituent elements, arrangement positions of constituent elements, connection forms, and the like shown in the following embodiments are examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept will be described as arbitrary constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|omitted or simplified. Moreover, in the following embodiments, the expression "substantially" or "approximately" also means including manufacturing errors, dimensional tolerances, and the like.

Further, coordinate axes may be shown in the drawings used for explanation in the following embodiments. The Z-axis direction is described as the height direction of the luminaire. The positive side of the Z-axis may be expressed as the upper side (upper), and the negative side of the Z-axis may be expressed as the lower side (downward). Also, the X-axis direction and the Y-axis direction are directions orthogonal to each other on a plane perpendicular to the Z-axis direction. The Y-axis direction is described as the longitudinal direction of the luminaire. The X-axis direction is described as the lateral direction (width direction) of the lighting fixture.

(Embodiment)
[Configuration of lighting equipment]
First, a usage example of the lighting fixture according to the embodiment will be described. FIG. 1 is a diagram showing a usage example of a lighting fixture according to an embodiment.

As shown in FIG. 1, the luminaire 10 according to the embodiment is an elongated luminaire. Specifically, the lighting fixture 10 has a prism shape. The luminaire 10 is attached, for example, to a wall 200 of a hospital room. A hospital room wall 200 is an example of a structure. The luminaire 10 attached to the wall 200 of the hospital room is positioned above the head of the user lying on the bed in the hospital room.

The luminaire 10 is capable of operating in three lighting modes. 2A to 2C are diagrams for explaining the light emission modes of the lighting device 10. FIG.

In the base lighting mode of operation shown in FIG. 2A, the lighting fixture 10 emits light towards the top of the lighting fixture 10 and away from the wall 200 . Thereby, the lighting fixture 10 can illuminate the inside of the hospital room.

In the reading light mode of operation shown in FIG. 2B, lighting fixture 10 emits light below lighting fixture 10 and toward wall 200 . Thereby, the lighting device 10 can indirectly illuminate the area around the user's head.

In the night light mode of operation shown in FIG. 2C, the lighting fixture 10 illuminates the bulb included in the lighting fixture 10 . Night light mode is used at night, for example.

A detailed configuration of such a lighting fixture 10 will be described below. FIG. 3 is an external perspective view of the lighting device 10 viewed from above. FIG. 4 is an exploded perspective view of the lighting device 10 viewed from above. FIG. 5 is an external perspective view of the lighting fixture 10 as viewed from below. FIG. 6 is an exploded perspective view of the lighting device 10 viewed from below. FIG. 7 is a schematic cross-sectional view of the lighting device 10 cut along a plane perpendicular to the longitudinal direction.

The lighting fixture 10 mainly includes a plurality of first light emitting devices 20, a plurality of second light emitting devices 30, a main body portion 40, a first power supply device 50, a second power supply device 60, a mounting member 70, and a light bulb. 75, a cover 80, an end cover 90a and an end cover 90b. Each component of the lighting device 10 will be described below.

[First light emitting device]
The first light emitting device 20 emits light during operation in the base lighting mode. The first light emitting device 20 is a light emitting device having an SMD (Surface Mount Device) structure. The luminaire 10 includes a plurality of first light-emitting devices 20 arranged in the longitudinal direction of the luminaire 10 on the first mounting surface 41 a of the first plate 41 of the main body 40 . is placed in The first light emitting device 20 is elongated and arranged such that the longitudinal direction of the first light emitting device 20 is along the longitudinal direction of the lighting device 10 . The plurality of first light emitting devices 20 emit light mainly toward the first translucent portion T1 (illustrated in FIG. 7) included in the first flat plate portion 81 of the cover 80. As shown in FIG. In addition, the lighting fixture 10 should just be provided with the 1st light-emitting device 20 at least.

The first light emitting device 20 specifically includes a substrate 21 and a plurality of LED elements 22 . The first light emitting device 20 may have at least one LED element 22 .

The substrate 21 is an elongated flat plate whose longitudinal direction is the Y-axis direction. The shape of the substrate 21 when viewed from the direction perpendicular to the main surface of the substrate 21 is rectangular, but may be any other shape.

The substrate 21 is, for example, a CEM-3 (Composite Epoxy Material-3) substrate whose base material is a resin material, but may be another resin substrate, a metal base substrate whose base material is a metal material, or a ceramic substrate. It may be a ceramic substrate based on the material. Other resin substrates are exemplified by FR-4 (Flame Retardant-4) substrates. Examples of the ceramic substrate include an alumina substrate made of aluminum oxide (alumina) and an aluminum nitride substrate made of aluminum nitride. Examples of metal base substrates include aluminum alloy substrates, iron alloy substrates, copper alloy substrates, and the like.

Also, the substrate 21 is not limited to a rigid substrate. The substrate 21 may be a flexible substrate whose base material is polyimide or the like.

The LED element 22 is an SMD type light emitting element and emits white light. The LED element 22 has a package having a recess, an LED chip mounted on the bottom surface of the recess of the package, and a sealing member that fills the recess of the package and seals the LED chip. The LED chip is, for example, a blue LED chip that emits blue light, and the sealing member is, for example, silicone resin containing yttrium-aluminum-garnet (YAG)-based yellow phosphor particles as a wavelength conversion material. Also, the LED element 22 has a metal terminal for mounting the LED element 22 on the substrate 21 .

The plurality of LED elements 22 are arranged on the main surface of the substrate 21 and emit light using power supplied from the first power supply device 50 . Specifically, the plurality of LED elements 22 are arranged in a straight line along the longitudinal direction of the substrate 21 to form a light emitting element row. The light-emitting element array is positioned closer to the X-axis + side of the substrate 21 . The plurality of LED elements 22 are arranged at regular intervals, for example. The plurality of LED elements 22 emit light mainly toward the first translucent portion T1 (illustrated in FIG. 7) included in the first flat plate portion 81 of the cover 80. As shown in FIG.

The plurality of LED elements 22 are connected in series by a wiring pattern included in the wiring layer of the substrate 21, for example. The electrical connection mode of the plurality of LED elements 22 (specifically, serial connection, parallel connection, combination of serial connection and parallel connection, etc.) is not particularly limited.

[Second light emitting device]
The second light emitting device 30 emits light during operation in the reading light mode. The second light emitting device 30 is, like the first light emitting device 20, an SMD structure light emitting device. The second light emitting device 30 specifically includes a substrate 31 and a plurality of LED elements 32 . The second light emitting device 30 may have at least one LED element 32 .

The second light emitting device 30 emits light during operation in the reading light mode. The second light emitting device 30 is an SMD structure light emitting device. The lighting device 10 includes a plurality of second light emitting devices 30 arranged in the longitudinal direction of the lighting device 10 on the second mounting surface 42a of the second plate 42 of the main body 40. is placed in The second light emitting device 30 is elongated and arranged so that the longitudinal direction of the second light emitting device 30 is along the longitudinal direction of the lighting device 10 . The plurality of second light emitting devices 30 emit light mainly toward the second translucent portion T2 (illustrated in FIG. 7) included in the second flat plate portion 82 of the cover 80. As shown in FIG. In addition, the lighting fixture 10 should just be provided with the 2nd light-emitting device 30 at least.

The second light emitting device 30 specifically includes a substrate 31 and a plurality of LED elements 32 . The second light emitting device 30 may have at least one LED element 32 .

The substrate 31 is an elongated flat plate whose longitudinal direction is the Y-axis direction. The shape of the substrate 31 when viewed from the direction perpendicular to the main surface of the substrate 31 is rectangular, but may be any other shape.

The substrate 31 is, for example, a CEM-3 substrate whose base material is a resin material, but may be another resin substrate, a metal base substrate whose base material is a metal material, or a ceramic substrate whose base material is a ceramic material. It may be a substrate. As another resin substrate, an FR-4 substrate is exemplified. Examples of the ceramic substrate include an alumina substrate made of aluminum oxide (alumina) and an aluminum nitride substrate made of aluminum nitride. Examples of metal base substrates include aluminum alloy substrates, iron alloy substrates, copper alloy substrates, and the like.

Also, the substrate 31 is not limited to a rigid substrate. The substrate 31 may be a flexible substrate whose base material is polyimide or the like.

The LED element 32 is an SMD type light emitting element and emits white light. The LED element 32 has a package having a recess, an LED chip mounted on the bottom surface of the recess of the package, and a sealing member that fills the recess of the package and seals the LED chip. The LED chip is, for example, a blue LED chip that emits blue light, and the sealing member is, for example, silicone resin containing yttrium-aluminum-garnet (YAG)-based yellow phosphor particles as a wavelength conversion material. Also, the LED element 32 has a metal terminal for mounting the LED element 32 on the substrate 31 .

The plurality of LED elements 32 are arranged on the main surface of the substrate 31 and emit light using power supplied from the first power supply device 50 . Specifically, the plurality of LED elements 32 are arranged linearly along the longitudinal direction of the substrate 31 to form a light emitting element row. The light emitting element array is positioned closer to the X-axis + side of the substrate 31 . The plurality of LED elements 32 are arranged at regular intervals, for example. The plurality of LED elements 32 emit light mainly toward the second translucent portion T2 (shown in FIG. 7) of the second flat plate portion 82 of the cover 80. As shown in FIG.

The plurality of LED elements 32 are connected in series by a wiring pattern included in the wiring layer of the substrate 31, for example. The electrical connection mode of the plurality of LED elements 32 (specifically, serial connection, parallel connection, combination of serial connection and parallel connection, etc.) is not particularly limited.

[Body part]
The main body 40 is a member that integrally holds components such as the plurality of first light emitting devices 20, the plurality of second light emitting devices 30, the first power supply device 50, the second power supply device 60, and the cover 80. . The body portion 40 specifically includes a first plate 41, a second plate 42, a first power supply holding plate 43, and a second power supply holding plate (not shown).

[Body part: first plate]
The first plate 41 is an elongated plate extending along the longitudinal direction of the lighting device 10 . A plurality of first light emitting devices 20 , mounting member 70 , cover 80 and the like are screwed to first plate 41 .

The first plate 41 is formed, for example, by bending a steel plate such as SPCC. As shown in FIG. 7 , the first plate 41 includes a portion along the first flat plate portion 81 of the cover 80 and a portion along the third flat plate portion 83 of the cover 80 . A groove extending in the longitudinal direction of the lighting device 10 and having a V-shaped cross section is formed in the portion of the cover 80 along the first flat plate portion 81 by the bending process described above.

The first plate 41 has a first mounting surface 41a. The first mounting surface 41 a is a substantially elongated rectangular surface extending along the longitudinal direction of the lighting device 10 . The first placement surface 41a constitutes a part of the V-shaped cross-sectional groove. A plurality of first light emitting devices 20 are placed side by side in the longitudinal direction of the lighting fixture 10 on the first placement surface 41a. A heat dissipation sheet or an insulation sheet may be arranged between the first light emitting device 20 and the first mounting surface 41a.

The first placement surface 41a is an inclined surface that forms a part of the V-shaped cross-sectional groove. The first mounting surface 41a is inclined with respect to the mounting surface 70a, and is neither perpendicular nor parallel to the mounting surface 70a. More specifically, the first placement surface 41a is inclined so that the first light emitting device 20 emits light toward the wall 200 and the opposite side. This allows the luminaire 10 to illuminate the space above the user with direct light of high light intensity during operation in the base lighting mode.

The first plate 41 is painted white. Thereby, the light emitted by the first light emitting device 20 is reflected by the first plate 41, and the light utilization efficiency is enhanced.

Also, the first plate 41 has a plurality of protrusions 41b. The plurality of protrusions 41b are arranged side by side in the longitudinal direction on a surface of the first plate 41 that is parallel to the first flat plate portion 81 . The multiple protrusions 41b contact the first flat plate portion 81 (that is, the cover 80). In this manner, if the first plate 41 and the cover 80 are in point contact with each other, abnormal noise caused by the contact between the first plate 41 and the cover 80 when the first plate 41 or the cover 80 thermally expands is suppressed.

Each of the plurality of protrusions 41b is formed, for example, by pressing the first plate 41, but may be formed by bonding or welding separate protrusions.

By the way, a notch is provided at the end in the longitudinal direction of the groove having the V-shaped cross section. FIG. 8 is a view showing notches 45 provided at the ends of the grooves of the first plate 41 in the longitudinal direction. In FIG. 8, illustration of the cover 80 is omitted.

More specifically, the notch 45 is provided at the longitudinal end and bottom of the groove. According to such a notch 45 , when a foreign matter such as a dead insect enters between the first plate 41 and the cover 80 , the foreign matter can be removed by tilting the main body 40 without disassembling the lighting device 10 . It can be dropped inside the body portion 40 through the notch 45 . Therefore, a general user who cannot disassemble the lighting fixture 10 can easily remove the foreign matter from around the first light emitting device 20 . An opening may be provided at the end of the groove in the longitudinal direction instead of the notch 45 . In addition, such a notch is not provided at the longitudinal end of the groove of the second plate 42, which will be described later, but the longitudinal end of the groove of the second plate 42 also has a notch or opening. may be provided.

[Body part: second plate]
The second plate 42 is an elongated plate extending along the longitudinal direction of the lighting fixture 10 . A plurality of second light emitting devices 30 and the like are screwed to the second plate 42 .

The second plate 42 is formed, for example, by bending a steel plate such as SPCC. As shown in FIG. 7 , the second plate 42 includes a portion along the second flat plate portion 82 of the cover 80 and a portion along the third flat plate portion 83 of the cover 80 . A groove extending in the longitudinal direction of the lighting fixture 10 and having a V-shaped cross section is formed in the portion of the cover 80 along the second flat plate portion 82 by the bending process described above.

The second plate 42 has a second mounting surface 42a. The second mounting surface 42 a is a substantially elongated rectangular surface extending along the longitudinal direction of the lighting device 10 . The second mounting surface 42a forms a side surface of the groove having the V-shaped cross section. A plurality of first light emitting devices 20 are arranged side by side in the longitudinal direction of the lighting fixture 10 on the second mounting surface 42a. A heat dissipation sheet or an insulation sheet may be arranged between the second light emitting device 30 and the second placement surface 42a.

The second placement surface 42a is an inclined surface that forms a part of the V-shaped cross-sectional groove. The second placement surface 42a is inclined with respect to the mounting surface 70a, and is neither perpendicular nor parallel to the mounting surface 70a. More specifically, the second mounting surface 42 a is inclined so that the second light emitting device 30 emits light toward the wall 200 . As a result, the lighting device 10 can illuminate the user's surroundings with indirect light with a reduced light intensity during operation in the reading light mode.

The second plate 42 is painted white. Thereby, the light emitted by the second light emitting device 30 is reflected by the second plate 42, and the light utilization efficiency is enhanced.

Also, the second plate 42 has a plurality of protrusions 42b. The plurality of protrusions 42b are arranged side by side in the longitudinal direction on a surface of the second plate 42 that is parallel to the second flat plate portion 82 . The multiple protrusions 42b contact the second flat plate portion 82 (that is, the cover 80). In this way, if the second plate 42 and the cover 80 are in point contact with each other, abnormal noise caused by the contact between the second plate 42 and the cover 80 when the second plate 42 or the cover 80 thermally expands is suppressed.

Each of the plurality of projections 42b is formed, for example, by pressing the second plate 42, but may be formed by bonding or welding separate projections.

In the first plate 41 and the second plate 42 described above, for example, L-shaped protrusions formed by cutting and raising one of the first plate 41 and the second plate 42 are formed on the first plate 41 and the second plate 42. They are connected by being slidably inserted into openings formed on the other side. The first plate 41 and the second plate 42 may be integrally formed by bending a single metal plate.

[Main unit: first power supply holding plate]
The first power supply holding plate 43 (shown in FIG. 7) is an elongated plate that extends along the longitudinal direction of the lighting fixture 10 and holds the first power supply device 50 . The cross-sectional shape of the first power supply holding plate 43 is V-shaped. A first power supply device 50 is screwed to the first power supply holding plate 43 . The first power supply holding plate 43 is formed, for example, by bending a steel plate such as SPCC. The first power supply holding plate 43 is screwed to the inner surface of the first plate 41 , but may be screwed to the second plate 42 .

Although not shown, a second power source holding plate that holds the second power source device 60 is also screwed to the inner surface of the first plate 41 . The second power supply holding plate holding the second power supply 60 has the same configuration as the first power supply holding plate 43 .

[First power supply]
The first power supply device 50 is a device that supplies power to the first light emitting device 20 . Specifically, the first power supply device 50 converts AC power obtained via a power cable (not shown) into power suitable for light emission of the plurality of LED elements 22 of the first light emitting device 20, and converts The power after being converted is supplied to the plurality of LED elements 22 . As a result, the plurality of LED elements 22 emit light using the power supplied from the first power supply device 50 .

The first power supply device 50 has an elongated shape extending in the longitudinal direction of the lighting fixture 10 and is screwed to the first power supply holding plate 43 . The first power supply 50 is held between the first plate 41 and the second plate 42 by the first power supply holding plate 43 . More specifically, the first power supply device 50 is arranged between the surface of the first plate 41 opposite to the first mounting surface 41a and the surface of the second plate 42 opposite to the second mounting surface 42a. placed in The surface of the first plate 41 opposite to the first mounting surface 41a is, in other words, the lower surface of the first plate 41, and the surface of the second plate 42 opposite to the second mounting surface 42a is, in other words, , the upper surface of the second plate 42 .

As a result, the lighting fixture 10 can be more easily miniaturized than a lighting fixture in which the first power supply device 50 is arranged outside the main body 40 . A lighting fixture 10 that can be easily miniaturized is realized. It should be noted that the first power supply device 50 is located closer to the Y-axis side than the second power supply device 60 is.

Specifically, the first power supply device 50 includes, for example, a circuit that converts AC power into DC power. The plurality of circuit elements constituting the circuit include, for example, capacitive elements such as electrolytic capacitors or ceramic capacitors, resistive elements such as resistors, rectifying elements, fuses, noise filters, diodes, and semiconductor elements such as integrated circuit elements. etc. are included. A circuit that converts AC power to DC power is, for example, a switching power supply circuit.

[Second power supply]
The second power supply device 60 is a device that supplies power to the second light emitting device 30 . Specifically, the second power supply device 60 converts AC power obtained via a power cable (not shown) into power suitable for light emission of the plurality of LED elements 32 of the second light emitting device 30, and converts The power after being converted is supplied to the plurality of LED elements 32 . As a result, the plurality of LED elements 32 emit light using the power supplied from the second power supply device 60 .

The second power supply 60 has a structure similar to that of the first power supply 50 . The second power supply device 60 has an elongated shape extending in the longitudinal direction of the lighting fixture 10 and is screwed to the second power supply holding plate for the second power supply device 60 . Similar to the first power supply 50, the second power supply 60 is held between the first plate 41 and the second plate 42 by a second power supply holding plate. More specifically, the second power supply device 60 is positioned between the surface of the first plate 41 opposite to the first mounting surface 41a and the surface of the second plate 42 opposite to the second mounting surface 42a. placed in

As a result, the lighting fixture 10 can be more easily miniaturized than a lighting fixture in which the second power supply device 60 is arranged outside the main body portion 40 . The second power supply device 60 is located closer to the + side of the Y axis than the first power supply device 50 is.

The second power supply device 60 specifically includes, for example, a circuit that converts AC power into DC power. The plurality of circuit elements constituting the circuit include, for example, capacitive elements such as electrolytic capacitors or ceramic capacitors, resistive elements such as resistors, rectifying elements, fuses, noise filters, diodes, and semiconductor elements such as integrated circuit elements. etc. are included. A circuit that converts AC power to DC power is, for example, a switching power supply circuit.

[Mounting member]
The mounting member 70 is a plate-like member for mounting the body portion 40 of the lighting fixture 10 to a structure such as a ceiling or a wall. The mounting member 70 is, in other words, a mounting plate. When attaching the luminaire 10 to the wall 200 , the attachment member 70 is first screwed to the wall 200 , and then the body portion 40 is attached to the attachment member 70 . As a result, the mounting member 70 is interposed between the main body portion 40 and the wall 200 . The mounting member 70 and the body portion 40 are screwed, for example. The mounting member 70 has a mounting surface 70 a facing the wall 200 .

The mounting member 70 is an elongated plate material, and is formed by bending a steel plate such as SPCC, for example. The mounting member 70 has a rectangular shape when viewed in a direction parallel to the X-axis, and the length of the mounting member 70 in the Y-axis direction is substantially the same as the length of the main body 40 in the Y-axis direction.

A light bulb 75 is arranged on the surface of the mounting member 70 on the main body portion 40 side. FIG. 9 is a diagram showing the structure of the surface of the mounting member 70 on the body portion 40 side. The surface on the body portion 40 side is, in other words, the surface opposite to the mounting surface 70a.

The light bulb 75 is a so-called miniature ball. The bulb 75 emits an incandescent white light during nightlight mode operation. The bulb 75 is, for example, an LED bulb, but may be an incandescent bulb or the like.

Bulb 75 illuminates primarily to the Z-axis-side (ie downward). Here, in the lighting fixture 10, miniaturization is achieved by shortening the length in the Z-axis direction. The light bulb 75 cannot be placed parallel to the Therefore, the optical axis of the light bulb 75 is inclined with respect to the longitudinal direction of the lighting device 10 so that the light bulb 75 emits light toward the second plate 42 (that is, the Z-axis - side). This makes it possible to increase the amount of light emitted to the second plate 42 side as compared with the case where the light bulb 75 is arranged so that the optical axis is parallel to the longitudinal direction. That is, it is possible to increase the utilization efficiency of the light emitted by the light bulb 75 .

A reflecting plate 76 that reflects the light emitted from the light bulb 75 toward the second plate 42 is arranged on the surface of the mounting member 70 on the side of the main body 40 . The reflector 76 is located on the +Z-axis side of the light bulb 75 . The reflecting plate 76 is arranged such that the reflecting surface of the reflecting plate 76 faces the light bulb 75 and the reflecting surface faces the optical axis of the light bulb 75 . The reflector 76 is formed, for example, by bending a steel plate such as SPCC. The reflector 76 is painted white to enhance light reflectivity. The reflecting plate 76 can increase the amount of light emitted to the Z-axis - side (that is, the second plate 42 side).

An opening 42c is provided in the portion of the second plate 42 facing the light bulb 75 so that the light emitted by the light bulb 75 is not blocked. FIG. 10 is a diagram showing an opening 42c through which the light emitted by the light bulb 75 provided in the second plate 42 passes.

The opening 42c is, for example, a racetrack-shaped elongated hole, but the shape of the opening 42c is not particularly limited. Also, a notch may be provided in a portion of the second plate 42 facing the light bulb 75 instead of the opening 42c.

[cover]
The cover 80 covers the multiple first light emitting devices 20 and the multiple second light emitting devices 30 . The cover 80 includes a first flat plate portion 81 facing the plurality of first light emitting devices 20, a second flat plate portion 82 facing the plurality of second light emitting devices 30, the first flat plate portion 81 and the second flat plate portion 82. It has a third flat plate portion 83 to be connected. Each of the first flat plate portion 81, the second flat plate portion 82, and the third flat plate portion 83 has a substantially elongated rectangular shape. The cross-sectional shape of the cover 80 is square bracket-shaped.

The cover 80 includes a translucent portion and a light shielding portion. The translucent portion is the hatched portion in FIGS. In addition, in FIG. 7, the light-transmitting portions are shown separately as a first light-transmitting portion T1 and a second light-transmitting portion T2 using reference numerals. The other portion is a light shielding portion. The first flat plate portion 81 includes a first light transmitting portion T1 that transmits light emitted by the plurality of first light emitting devices 20, and the second flat plate portion 82 transmits light emitted by the plurality of second light emitting devices 30. The third flat plate portion 83 does not include a light transmitting portion, and includes the second light transmitting portion T2.

Here, the appearance area of the first light transmitting portion T1 is larger than the appearance area of the second light transmitting portion T2. Accordingly, during operation of the base lighting mode, light emitted by the plurality of first light emitting devices 20 can be transmitted through the relatively large first light transmitting portion T1 to illuminate a wide range of space. On the other hand, during operation in the reading light mode, the light emitted by the plurality of second light emitting devices 30 can pass through the relatively small second translucent portion T2 and illuminate only the user's peripheral area. It should be noted that the light emitted from the light bulb 75 is transmitted through the second translucent portion T2 during operation in the night light mode.

By the way, as schematically shown in FIG. 7, when viewed from the direction perpendicular to the second flat plate portion 82, the light shielding portion (portion other than the second light transmitting portion T2) included in the second flat plate portion 82 is , overlap with the LED element 32 provided in the second light emitting device 30 . As described above, the plurality of second light-emitting devices 30 emit light from above the user's head toward the user during operation in the reading light mode. It is possible to suppress direct viewing of the LED elements 32 of the light emitting device 30 .

The cover 80 described above is formed by, for example, extrusion molding of polycarbonate resin. Therefore, the cross-sectional shape of the cover 80 cut along a plane perpendicular to the Y-axis direction has substantially the same shape regardless of the cutting position. Note that the cover 80 may be formed by a construction method other than extrusion molding. Moreover, it is not essential that the cover 80 is made of a resin material. For example, the translucent portion of the cover 80 may be made of a glass material.

[End cover]
The end cover 90a is an end cap that covers one end of the main body 40 in the longitudinal direction. The end cover 90b is an end cap that covers the other end of the main body 40 in the longitudinal direction. The end cover 90a and the end cover 90b are made of a resin material such as polybutylene terephthalate resin, but may be made of a metal material. The end cover 90a and the end cover 90b have a rectangular shape when viewed from a direction parallel to the longitudinal direction.

Each of the end cover 90a and the end cover 90b has a claw portion, and the claw portion engages with an opening provided at an end portion of the main body portion 40 in the longitudinal direction. Also, the end covers 90a and 90b may be screwed to the ends of the main body 40 in the longitudinal direction.

[Effects, etc.]
As described above, the lighting fixture 10 includes the first light emitting device 20, the second light emitting device 30, the first plate 41 having the first mounting surface 41a on which the first light emitting device 20 is mounted, and A body portion 40 including a second plate 42 having a second mounting surface 42a on which the second light emitting device 30 is mounted, a first power supply device 50 supplying power to the first light emitting device 20, and a second light emitting device. and a mounting member 70 interposed between the body portion 40 and the wall 200 to mount the body portion 40 to the wall 200 . The mounting member 70 has a mounting surface 70a facing the wall 200, and each of the first mounting surface 41a and the second mounting surface 42a is inclined with respect to the mounting surface 70a. The first power supply device 50 and the second power supply device 60 are arranged on the surface of the first plate 41 opposite to the first mounting surface 41a and the surface of the second plate 42 opposite to the second mounting surface 42a. is placed between Wall 200 is an example of a structure.

As a result, the first power supply device 50 and the second power supply device 60 are arranged inside the body portion 40 , so that the first power supply device 50 and the second power supply device 60 are arranged outside the body portion 40 in the lighting device 10 . It can be made smaller more easily than the lighting fixtures that are used. That is, the lighting device 10 that can be easily miniaturized is realized. In addition, the lighting device 10 is a lighting device in which the first light emitting device 20 is arranged on one of the front surface and the back surface of one plate material, and the second light emitting device 30 is arranged on the other of the front surface and the back surface of the one plate material. The heat dissipation properties of the first light-emitting device 20 and the second light-emitting device 30 can be improved more.

Further, for example, the first mounting surface 41 a is inclined so that the first light emitting device 20 emits light toward the side opposite to the wall 200 , and the second mounting surface 42 a is inclined so that the second light emitting device 30 faces the wall 200 . tilted to emit light towards

Thereby, the lighting fixture 10 can directly illuminate the space with the light emitted from the first light emitting device 20 and indirectly illuminate the space with the light emitted from the second light emitting device 30 .

Further, for example, the lighting fixture 10 further includes a first light-transmitting portion T1 that transmits light emitted by the first light-emitting device 20, a second light-transmitting portion T2 that transmits light emitted by the second light-emitting device 30, and a light shielding device. A cover 80 including a portion is provided. The appearance area of the first light transmitting portion T1 is larger than the appearance area of the second light transmitting portion T2.

Accordingly, the light emitted from the first light emitting device 20 can illuminate a wide range of space, and the light emitted from the second light emitting device 30 can illuminate a narrow range.

Further, for example, the cover 80 faces the first light emitting device 20 and includes a first flat plate portion 81 including the first light transmitting portion T1 and a second light emitting device 30 facing the second light transmitting portion T2 and the light shielding portion. and a third flat plate portion 83 connecting the first flat plate portion 81 and the second flat plate portion 82 and including a light shielding portion. When viewed from a direction perpendicular to the second flat plate portion 82 , the light blocking portion included in the second flat plate portion 82 overlaps the LED element 32 included in the second light emitting device 30 . The LED element 32 is an example of a light emitting element.

This can prevent the user from looking directly at the LED element 32 of the second light emitting device 30 .

Further, for example, the body portion 40 has a plurality of projections 41b and projections 42b that contact the cover 80 .

As a result, since the body portion 40 and the cover 80 are in point contact with each other, abnormal noise caused by the contact between the body portion 40 and the cover 80 when the body portion 40 or the cover 80 thermally expands is suppressed.

Further, for example, the lighting fixture 10 is elongated, the first plate 41 includes a groove extending in the longitudinal direction of the lighting fixture 10, and the longitudinal end of the groove is an opening or a cut. A notch 45 is provided.

As a result, when a foreign matter such as a dead insect enters between the first plate 41 and the cover 80 , the body portion 40 can be tilted without disassembling the lighting fixture 10 so that the foreign matter can be removed through the notch 45 to the main body portion 40 . can be dropped inside the

Further, for example, the lighting device 10 is elongated and further includes a light bulb 75 arranged on the surface of the mounting member 70 on the main body portion 40 side. The optical axis of the light bulb 75 is inclined with respect to the longitudinal direction of the lighting fixture 10 so that the light bulb 75 emits light toward the second plate 42 side.

As a result, the amount of light emitted to the second plate 42 side can be increased even when the light bulb 75 cannot be arranged so that the optical axis is parallel to the Z-axis direction. That is, it is possible to increase the utilization efficiency of the light emitted by the light bulb 75 .

Further, for example, the second plate 42 is provided with an opening 42c or a notch through which the light emitted by the light bulb 75 passes.

Thereby, the amount of light emitted from the light bulb 75 to the outside of the lighting device 10 can be increased.

Further, for example, the lighting device 10 further includes a reflector 76 arranged on the surface of the mounting member 70 on the main body 40 side and reflecting the light emitted from the light bulb 75 toward the second plate 42 .

Thereby, the amount of light emitted to the second plate 42 side can be increased.

(Other embodiments)
Although the embodiments have been described above, the present invention is not limited to such embodiments.

For example, in the above-described embodiments, the luminaire was elongated, but the luminaire may have any shape. Also, the use of the lighting fixture is not particularly limited, and the lighting fixture may be installed in hotel guest rooms, for example.

In addition, in the above embodiments, the light-emitting device is an SMD structure light-emitting device, but it may be a COB (Chip On Board) structure light-emitting device. In a COB structure light emitting device, an LED chip is used as a light emitting element, the LED chip is directly mounted on a substrate, and the LED chip is sealed with a translucent resin material containing phosphor particles. Further, the light emitting device may be a remote phosphor type light emitting device having an LED chip and a resin member containing phosphor particles arranged at a position separated from the LED chip.

Moreover, the light-emitting element is not limited to an LED chip or an element using an LED chip. For example, solid-state light-emitting devices other than LED chips, such as semiconductor lasers or organic EL (Electro Luminescence), may be used as light-emitting devices.

In addition, as long as it does not deviate from the spirit of the present invention, the present embodiment may be modified in various ways that a person skilled in the art can think of, or a form constructed by combining the constituent elements of different embodiments is one or more aspects. may be included within the range of

REFERENCE SIGNS LIST 10 lighting fixture 20 first light emitting device 21, 31 substrate 22, 32 LED element (light emitting element)
30 second light emitting device 40 main body 41 first plate 41a first mounting surface 41b, 42b projection 42 second plate 42a second mounting surface 42c opening 45 notch 50 first power supply device 60 second power supply device 70 mounting member 70a mounting surface 75 light bulb 76 reflector 80 cover 81 first flat plate portion 82 second flat plate portion 83 third flat plate portion 200 wall (structure)

Claims (10)

a first light-emitting device comprising a substrate and an LED element disposed on the main surface of the substrate;
a second light-emitting device comprising a substrate and an LED element disposed on the main surface of the substrate;
a body portion including a first plate having a first mounting surface on which the first light emitting device is mounted and a second plate having a second mounting surface on which the second light emitting device is mounted;
a first power supply device that supplies power to the first light emitting device;
a second power supply device that supplies power to the second light emitting device;
a mounting member interposed between the main body and the structure for mounting the main body to the structure;
The mounting member has a mounting surface facing the structure,
the first mounting surface and the second mounting surface are inclined at different angles with respect to the mounting surface;
The first power supply device and the second power supply device are arranged on the surface of the first plate opposite to the first mounting surface and the surface of the second plate opposite to the second mounting surface. placed between
the first mounting surface is inclined at an angle that is not perpendicular to the structure so that the first light emitting device emits light toward the opposite side of the structure;
The second mounting surface is inclined at an angle that is not perpendicular to the structure so that the second light emitting device emits light toward the structure. Furthermore, a cover including a first light-transmitting portion that transmits light emitted by the first light-emitting device, a second light-transmitting portion that transmits light emitted by the second light-emitting device, and a light shielding portion,
The lighting fixture according to claim 1, wherein the outer area of the first translucent part is larger than the outer area of the second translucent part. The cover is
a first flat plate portion facing the first light emitting device and including the first light transmitting portion;
a second flat plate portion facing the second light emitting device and including the second light transmitting portion and the light shielding portion;
a third flat plate portion including the light shielding portion connecting the first flat plate portion and the second flat plate portion;
The lighting fixture according to claim 2, wherein when viewed from a direction perpendicular to the second flat plate portion, the light shielding portion included in the second flat plate portion overlaps with the LED element included in the second light emitting device. The lighting fixture according to claim 2 or 3, wherein the body portion has a plurality of protrusions that contact the cover. The lighting fixture is elongated,
the first plate includes a groove extending longitudinally of the lighting fixture;
The lighting fixture according to any one of claims 1 to 4, wherein an opening or a notch is provided at the longitudinal end of the groove. The lighting fixture has an elongated shape, and further includes a light bulb arranged on the surface of the mounting member on the main body side,
The lighting fixture according to any one of claims 1 to 5, wherein the optical axis of the light bulb is inclined with respect to the longitudinal direction of the lighting fixture so that the light bulb emits light toward the second plate. 7. A luminaire according to claim 6, wherein said second plate is provided with an aperture or cut-out for passage of light emitted by said bulb. 8. The lighting fixture according to claim 6, further comprising a reflecting plate arranged on a surface of the mounting member on the side of the main body and reflecting light emitted from the light bulb toward the second plate. The first mounting surface is a surface that forms part of a V-shaped cross-sectional groove of the first plate and is inclined with respect to the mounting surface,
9. The second mounting surface according to any one of claims 1 to 8, wherein the second mounting surface is a surface that forms part of a V-shaped cross-sectional groove of the second plate and is inclined with respect to the mounting surface. lighting fixtures. a first light-emitting device comprising a substrate and an LED element disposed on the main surface of the substrate;
a second light-emitting device comprising a substrate and an LED element disposed on the main surface of the substrate;
a body portion including a first plate having a first mounting surface on which the first light emitting device is mounted and a second plate having a second mounting surface on which the second light emitting device is mounted;
a first power supply device that supplies power to the first light emitting device;
a second power supply device that supplies power to the second light emitting device;
a mounting member interposed between the main body and the structure for mounting the main body to the structure;
The mounting member has a mounting surface facing the structure,
the first mounting surface and the second mounting surface are inclined at different angles with respect to the mounting surface;
The first power supply device and the second power supply device are arranged on the surface of the first plate opposite to the first mounting surface and the surface of the second plate opposite to the second mounting surface. placed between
The first mounting surface is a surface that forms part of a V-shaped cross-sectional groove of the first plate and is inclined with respect to the mounting surface,
Said 2nd mounting surface is a surface which comprises a part of cross-sectional V-shaped groove part which said 2nd plate has, and is inclined with respect to the said attachment surface.

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