JP7299747B2 - lighting equipment - Google Patents

Description

The present invention relates to lighting fixtures.

A lighting fixture having a wiring space in which electric wires are arranged is known. For example, the lighting device of Patent Literature 1 includes an elongated power supply device and an electric wire. The lighting device of Patent Document 1 has wiring spaces on both sides in the width direction of the power supply device. The electric wire is arranged in the wiring space. More specifically, the lighting device of Patent Literature 1 includes a device mounting surface portion to which the power supply device is mounted. The wiring spaces are provided on both sides in the width direction of the device mounting surface portion.

The wiring space is a space surrounded by a virtual boundary surface, a bottom surface, and a side surface. The bottom part is located on the upper part of the lighting device. The side portion extends downward from the end of the bottom portion. The bottom portion and the side portion are perpendicular to each other. The boundary surface is an inclined surface facing the bottom surface portion and the side surface portion, and the outer shape of the wiring space when viewed in cross section is a substantially right-angled triangle. Specifically, the position of the bottom surface portion in the height direction coincides with the upper side portion of the plate portion of the device mounting surface portion. The cross-sectional boundary surface is provided from the end of the upper side portion of the plate portion to the reference portion positioned below the side portion. The interface is angled with respect to the power supply.

JP 2016-207624 A

However, in the lighting device of Patent Literature 1, the power supply device needs to be provided with an inclined portion along the boundary surface so that the power supply device and the electric wire do not interfere with each other. Alternatively, it is necessary to reduce the size of the power supply so that the power supply does not interfere with wires. Therefore, the degree of freedom in designing the power supply is reduced.

The present invention has been made in view of the above problems, and an object thereof is to provide a lighting fixture capable of forming a housing space for housing a power line without reducing the degree of freedom in designing a power supply device.

A lighting fixture disclosed in the present application includes a power line, a power supply device, a light source, a light source placement section , and a housing space formation section . The power line transmits primary power. The power supply generates secondary power based on the primary power. The light source emits light based on the secondary power. The light source is arranged in the light source arrangement portion. The accommodation space forming portion forms an accommodation space in which the power line is accommodated together with the light source arrangement portion. The light source arrangement portion has a facing surface facing one side surface of the power supply device. The facing surface is inclined with respect to one side surface of the power supply device and further faces the accommodation space forming portion. The accommodation space is formed between the facing surface , one side surface of the power supply device, and the accommodation space forming portion . The light source arrangement portion has an edge portion connected to the accommodation space forming portion. The angle between the facing surface and the housing space forming portion is an acute angle. The edge is positioned away from the light source. The power line is sandwiched and positioned between the facing surface and the accommodation space forming portion on the edge portion side .

In the lighting fixture disclosed in the present application, the light source arrangement portion may be plate-shaped.

According to the present invention, it is possible to form an accommodation space for accommodating a power line without lowering the degree of freedom in designing the power supply device.

It is a perspective view showing a lighting fixture concerning an embodiment of the present invention. It is a bottom view which shows the structure of the lighting fixture which concerns on embodiment of this invention. 1 is a cross-sectional view of a lighting fixture according to an embodiment of the present invention; FIG.

Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments. It should be noted that descriptions of overlapping descriptions may be omitted as appropriate. Also, in the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

First, the lighting fixture 100 of this embodiment is demonstrated with reference to FIG. FIG. 1 is a perspective view showing a lighting fixture 100 according to this embodiment. Specifically, FIG. 1 shows the luminaire 100 viewed from below and obliquely forward left.

The lighting fixture 100 of this embodiment is used, for example, as a base light or indirect lighting. Moreover, the lighting fixture 100 of this embodiment is installed in a ceiling surface or a wall surface, for example. Alternatively, the lighting fixture 100 of this embodiment may be installed on the floor. The ceiling surface may be an oblique ceiling surface.

As shown in FIG. 1 , the lighting fixture 100 includes a long housing 1 and a long cover member 2 . The housing 1 has a first wall portion 11 and a second wall portion 12 facing each other. The first wall portion 11 and the second wall portion 12 constitute the outer wall of the housing 1 . The cover member 2 has an arc shape in cross section, and is arranged from the edge 11 a of the first wall portion 11 to the edge 12 a of the second wall portion 12 .

In this embodiment, in order to facilitate understanding of the invention, the side on which the first wall portion 11 of the housing 1 is arranged is referred to as the “upper side”, and the side of the housing 1 on which the second wall portion 12 is arranged is referred to as the “upper side”. "lower side" defines the vertical direction. The front-rear direction is defined by defining the side on which the cover member 2 is arranged as the "front side" and the opposite side as the "rear side". In addition, the left and right directions are defined by defining the right side as the "right side" and the opposite side as the "left side" as viewed forward from the lighting device 100 . However, these directions do not limit the directions during manufacture, construction, and use of the lighting fixture of the present invention.

The edge 11a of the first wall portion 11 indicates the front edge of the first wall portion 11 , and the edge 12a of the second wall portion 12 indicates the front edge of the second wall portion 12 . The edge 12a of the second wall portion 12 is located on the rear side of the edge 11a of the first wall portion 11 . The cover member 2 is arranged to cover a part of the lower surface from the front surface of the housing 1, and the lighting device 100, the housing 1, and the cover member 2 are long in the left-right direction.

In this embodiment, the lighting fixture 100 will be described by taking as an example the case where the lighting fixture 100 is installed on the ceiling surface C (FIG. 3). In this case, the first wall portion 11 is installed on the ceiling surface C (FIG. 3). The second wall portion 12 is positioned below the first wall portion 11 . In other words, the first wall portion 11 constitutes the upper wall of the housing 1 and the second wall portion 12 constitutes the lower wall of the housing 1 .

Next, the lighting fixture 100 of this embodiment will be described with reference to FIG. FIG. 2 is a bottom view showing the configuration of the lighting fixture 100 according to this embodiment. Specifically, FIG. 2 is a perspective view showing wiring inside the lighting fixture 100 . In addition, in order to clearly show the wiring inside the lighting device 100, the light emitting unit 3 and the power supply device 4 are indicated by dashed lines.

As shown in FIG. 2 , lighting fixture 100 includes light emitting portion 3 , power supply device 4 , first terminal portion 5 , first power line 61 , second power line 62 , third power line 63 , branch portion 7 and a second terminal portion 8 .

The light emitting section 3 emits light. The light emitting unit 3 is arranged next to the power supply device 4 . In this embodiment, the light emitting unit 3 is arranged on the front side of the power supply device 4 . Also, the light emitting unit 3 extends along the longitudinal direction of the lighting device 100 (the housing 1). In this embodiment, the light emitting part 3 extends along the left-right direction.

The light emitting unit 3 has a light source 31 which will be described later with reference to FIG. More specifically, the light emitting section 3 has a plurality of light sources 31 . The plurality of light sources 31 are arranged in a row along the left-right direction. However, the arrangement of the plurality of light sources 31 is not limited to one row. The plurality of light sources 31 may be arranged in two or more rows along the left-right direction, or may be arranged in a staggered manner along the left-right direction.

The power supply device 4 generates secondary power for causing the light emitting unit 3 to emit light based on the primary power. The light emitting unit 3 emits light based on the secondary power. Specifically, the light source 31, which will be described later with reference to FIG. 3, emits light based on the secondary power. Primary power is supplied, for example, from an external power source. In this embodiment, primary power is power based on AC voltage, and secondary power is power based on DC voltage. The power supply device 4 generates, from the AC voltage, a DC voltage for causing a light source 31, which will be described later with reference to FIG. 3, to emit light.

The power supply device 4 of this embodiment extends along the longitudinal direction of the lighting fixture 100 (housing 1). In other words, the power supply device 4 extends along the horizontal direction. Specifically, the power supply device 4 has a rectangular parallelepiped shape. The first terminal portion 5 is arranged on one end side of the power supply device 4 in the longitudinal direction. In this embodiment, the first terminal portion 5 is arranged on the left side of the power supply device 4 .

The first terminal portion 5 is connected to one end of the first power line 61 . The first power line 61 transmits primary power from the first terminal portion 5 to the branch portion 7 . Specifically, one end of an external power line (not shown) drawn into the lighting fixture 100 from the outside of the lighting fixture 100 is connected to the first terminal portion 5 . An external power line (not shown) transmits primary power to the first terminal portion 5 . The first terminal portion 5 conducts primary power transmitted from an external power line (not shown) to the first power line 61 .

In this embodiment, an AC voltage is transmitted from an external power line (not shown) to the first terminal portion 5 . AC voltage is applied to the first power line 61 via the first terminal portion 5 . The first power line 61 transmits AC voltage to the branch portion 7 .

The first power line 61 is arranged along the longitudinal direction of the lighting device 100 (housing 1). More specifically, the first power line 61 is arranged to pass next to the power supply device 4 along the longitudinal direction of the power supply device 4 . In this embodiment, the first power line 61 is arranged to pass through the front side of the power supply device 4 . Specifically, the first power line 61 is arranged so as to pass through the back side of the light emitting section 3 . Here, the back side of the light emitting section 3 indicates the side opposite to the side on which the light source 31 is arranged.

The branch portion 7 is arranged on the other end side of the power supply device 4 in the longitudinal direction. Specifically, the branch portion 7 is arranged on the right side of the power supply device 4 . The other end of the first power line 61 , one end of the second power line 62 , and one end of the third power line 63 are connected to the branch portion 7 . The branch unit 7 energizes the primary power transmitted via the first power line 61 to the second power line 62 and the third power line 63 . The other end of the second power line 62 is connected to the power supply device 4 . As a result, primary power is transmitted to the power supply device 4 .

The other end of the third power line 63 is connected to the second terminal portion 8 . In this embodiment, the second terminal portion 8 is arranged on the right side of the branch portion 7 . One end of an external power line (not shown) is connected to the second terminal portion 8 when connecting two or more lighting fixtures 100 . For example, when connecting two lighting fixtures 100 along the horizontal direction, primary power is supplied to the second terminal section 8 of the lighting fixture 100 arranged on the left side and to the first terminal section 5 of the lighting fixture 100 arranged on the right side. is connected to one end of an external power line (not shown) that transmits the The second terminal portion 8 of the lighting fixture 100 arranged on the left side energizes the primary power transmitted through the third power line 63 to an external power line (not shown).

Next, the lighting fixture 100 of this embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view of the lighting fixture 100 according to this embodiment. Specifically, FIG. 3 shows a cross-section of luminaire 100 along line III-III of FIG.

As shown in FIG. 3, the lighting fixture 100 includes a housing 1, a cover member 2, a light emitting section 3, a power supply device 4, and a first power line 61, as well as a light source arrangement section 13, a power supply box 40, and an insulating sheet. 41.

The housing 1 accommodates the power supply device 4 . Specifically, the power supply device 4 is arranged behind the light emitting unit 3 . More specifically, the power supply device 4 is housed inside a power supply box 40 , and the power supply box 40 is arranged behind the light emitting section 3 . In this embodiment, the power supply box 40 is fixed to the first wall portion 11 of the housing 1 . As a result, the power supply device 4 is fixed to the first wall portion 11 of the housing 1 . In other words, the power supply device 4 is arranged on the first wall portion 11 of the housing 1 . As described with reference to FIG. 1 , the first wall portion 11 constitutes the outer wall of the housing 1 . According to this embodiment, since the power supply device 4 is arranged on the outer wall (first wall portion 11) of the housing 1, the size of the lighting fixture 100 can be reduced.

More specifically, the power supply device 4 is housed inside the power supply box 40 while being surrounded (or wrapped) by the insulating sheet 41 . The power supply box 40 of this embodiment is a box-shaped member with an open top. Therefore, the power supply device 4 faces the first wall portion 11 of the housing 1 via the insulating sheet 41 .

The cover member 2 covers the light emitting section 3 . The cover member 2 is, for example, a shade or a diffusion cover. The cover member 2 is transparent or translucent, and allows the light emitted from the light emitting section 3 to pass therethrough. The cover member 2 is made of, for example, a translucent milky white material.

The light emitting section 3 has a light source 31 and a wiring board 32 . The light source 31 emits light. The light source 31 of this embodiment has an LED (Light Emitting Diode) element as a light emitting element. More specifically, the light source 31 is, for example, an SMD (surface mount device) or a COB (chip on board).

The light source 31 is mounted on the wiring board 32 . The wiring board 32 extends along the longitudinal direction of the lighting device 100 (housing 1) described with reference to FIG. Wiring is formed on the wiring board 32 . The wiring of the wiring board 32 supplies secondary power to the light source 31 . Specifically, the wiring of the wiring board 32 applies a DC voltage to the light source 31 .

The light source arrangement portion 13 extends along the longitudinal direction of the lighting fixture 100 (housing 1) described with reference to FIG. The light source placement section 13 is provided next to the power supply device 4 . Specifically, the light source arrangement portion 13 is provided on the front side of the power supply device 4 . In other words, the light source placement section 13 is provided on the front side of the power supply box 40 . In this embodiment, the light source arrangement portion 13 is part of the housing 1 . Therefore, the housing 1 has the light source arrangement portion 13 . Since the housing 1 has the light source arrangement portion 13, the number of parts of the lighting fixture 100 can be reduced.

The light emitting section 3 is arranged in the light source arrangement section 13 . Specifically, the light source arrangement portion 13 is plate-shaped and has a light source arrangement surface 131 and a facing surface 132 . The light source placement surface 131 faces the cover member 2 . The light emitting unit 3 is arranged on the light source arrangement surface 131 . In this embodiment, the facing surface 132 is a surface on the opposite side of the light source arrangement surface 131 and faces the front surface 4 s of the power supply device 4 . Specifically, the facing surface 132 faces the front surface 40 s of the power supply box 40 . A front surface 4 s of the power supply device 4 is an example of one side surface of the power supply device 4 .

In this embodiment, the light source arrangement portion 13 is inclined with respect to the front surface 4 s of the power supply device 4 . In other words, the light source arrangement portion 13 is inclined with respect to the front surface 40 s of the power supply box 40 . Since the light source arrangement portion 13 is inclined with respect to the front surface 4s of the power supply device 4, the light source arrangement surface 131 and the opposing surface 132 are also inclined with respect to the front surface 4s of the power supply device 4 (the front surface 40s of the power supply box 40). Further, since the light source arrangement surface 131 is inclined with respect to the front surface 4 s of the power supply device 4 , the light emitting section 3 is arranged in a posture inclined with respect to the front surface 4 s of the power supply device 4 .

The light source arrangement portion 13 forms an accommodation space S between the facing surface 132 and the front surface 4 s of the power supply device 4 . Specifically, the light source arrangement portion 13 forms an accommodation space S between the facing surface 132 and the front surface 40 s of the power supply box 40 . The accommodation space S accommodates the first power line 61 .

The housing 1 of this embodiment further has an accommodation space forming portion 111 . The housing space forming portion 111 faces the facing surface 132 of the light source placement portion 13 . The accommodation space S is formed between the light source arrangement portion 13 and the accommodation space forming portion 111 . Specifically, the first wall portion 11 has a housing space forming portion 111 . In other words, the accommodation space forming portion 111 is part of the first wall portion 11 . The accommodation space forming portion 111 is located on the front side of the portion of the first wall portion 11 where the power supply device 4 is arranged. The angle θ between the facing surface 132 of the light source arrangement portion 13 and the inner wall surface 111s of the accommodation space forming portion 111 is greater than 0 degrees and less than 90 degrees. That is, the angle θ is an acute angle.

Specifically, the light source arrangement portion 13 has a first edge portion 13a connected to the housing space forming portion 111 and a second edge portion 13b opposite to the first edge portion 13a. The first edge 13a and the second edge 13b extend along the longitudinal direction of the lighting fixture 100 (housing 1) described with reference to FIG.

The first edge 13a is farther from the front surface 4s of the power supply device 4 (the front surface 40s of the power supply box 40) than the second edge 13b. The second edge portion 13b is farther from the first wall portion 11 and closer to the front surface 4s of the power supply device 4 (the front surface 40s of the power supply box 40) than the first edge portion 13a. As a result, the angle θ between the facing surface 132 of the light source arrangement portion 13 and the inner wall surface 111s of the housing space forming portion 111 is greater than 0 degrees and less than 90 degrees.

More specifically, the light source arrangement portion 13 is inclined so that the front side is closer to the first wall portion 11 (ceiling surface C) and the rear side is further away from the first wall portion 11 (ceiling surface C). In other words, the light source arrangement portion 13 is inclined obliquely forward and upward. Therefore, the light source arrangement surface 131 and the opposing surface 132 are also inclined obliquely forward and upward. Since the light source arrangement surface 131 is inclined diagonally forward and upward, the light emitted from the light emitting section 3 is irradiated diagonally forward and downward.

The embodiments of the present invention have been described above with reference to FIGS. 1 to 3. FIG. According to this embodiment, the accommodation space S can be formed between the power supply device 4 and the light source arrangement portion 13 . Specifically, an accommodation space S can be formed between the power supply box 40 and the light source arrangement portion 13 . Therefore, the accommodation space S can be formed without lowering the degree of freedom in designing the power supply device 4 .

Further, according to the present embodiment, since the facing surface 132 of the light source arrangement portion 13 is inclined with respect to one side surface (front surface 4s) of the power supply device 4, the first power line 61 is arranged at a position further away from the power supply device 4. can do. Therefore, noise emitted from the power supply device 4 is less likely to propagate to the first power line 61 .

Further, according to the present embodiment, since the light source arrangement portion 13 is inclined with respect to one side surface (the front surface 4s) of the power supply device 4, the light source arrangement portion 13 is perpendicular to the one side surface (the front surface 4s) of the power supply device 4. Compared to a configuration that does this, the size of the lighting fixture 100 in the front-rear direction can be reduced, and thus the size of the lighting fixture 100 can be reduced.

Further, according to the present embodiment, since the angle θ between the facing surface 132 of the light source arrangement portion 13 and the inner wall surface 111s of the housing space forming portion 111 is an acute angle, the facing surface 132 of the light source arrangement portion 13 and the housing space The first power line 61 can be sandwiched between the inner wall surface 111 s of the forming portion 111 and positioned.

Further, according to this embodiment, since the light source placement portion 13 is plate-shaped, the accuracy of the inclination angle of the light source placement surface 131 can be improved.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be embodied in various aspects without departing from the spirit of the present invention. Also, the plurality of constituent elements disclosed in the above embodiments can be modified as appropriate.

In addition, the drawings schematically show each component mainly for easy understanding of the invention, and the thickness, length, number, spacing, etc. It may be different from the actual one due to the convenience of Further, the configuration of each component shown in the above embodiment is an example and is not particularly limited, and it goes without saying that various modifications are possible within a range that does not substantially deviate from the effects of the present invention. .

For example, in the embodiment according to the present invention, the primary power was power based on AC voltage, but the primary power may be power based on DC voltage.

Further, in the embodiment according to the present invention, the secondary power is power based on DC voltage, but the secondary power may be power based on AC voltage.

Further, in the embodiment according to the present invention, the configuration in which the primary power is supplied from the external power source to the first terminal portion 5 has been described, but the primary power may be supplied to the first terminal portion 5 from another lighting fixture 100. .

Moreover, in the embodiment according to the present invention, the light source 31 has an LED element as a light emitting element, but the light emitting element is not limited to an LED element as long as it is an element that emits light. For example, the light emitting element may be an organic EL (electro-luminescence) element.

Also, in the embodiment according to the present invention, the lighting fixture 100 has the branch portion 7 and the second terminal portion 8, but the branch portion 7 and the second terminal portion 8 may be omitted.

Further, in the embodiment according to the present invention, the housing 1 has the light source arrangement portion 13, but the housing 1 and the light source arrangement portion 13 may be separate members.

In addition, in the embodiment according to the present invention, the light source arrangement portion 13 has a plate shape, but the light source arrangement portion 13 is not limited to a plate shape as long as it has the light source arrangement surface 131 and the facing surface 132 .

In addition, in the embodiment according to the present invention, the facing surface 132 of the light source arrangement portion 13 is inclined with respect to one side surface (front surface 4 s ) of the power supply device 4 , but the opposite surface 132 of the light source arrangement portion 13 It may be parallel to one side surface (front surface 4s). In other words, the facing surface 132 of the light source arrangement portion 13 may be perpendicular to the first wall portion 11 .

Further, in the embodiment according to the present invention, the power supply device 4 is arranged on the outer wall (first wall portion 11) of the housing 1, but the power supply device 4 may be arranged inside the outer wall of the housing 1. .

In addition, in the embodiment according to the present invention, one side surface (front surface 4 s) of the power supply device 4 faces the back surface of the light source arrangement portion 13 , but one side surface (front surface 4 s) of the power supply device 4 faces the light source arrangement surface 131 . The light source arrangement portions 13 may be provided so as to face each other. In other words, the surface facing one side surface (front surface 4 s ) of the power supply device 4 may be the same surface as the light source arrangement surface 131 . In this case, the first edge 13a is closer to the front surface 4s of the power supply device 4 (the front surface 40s of the power supply box 40) than the second edge 13b. The second edge portion 13b is farther from the first wall portion 11 and farther from the front surface 4s of the power supply device 4 (the front surface 40s of the power supply box 40) than the first edge portion 13a. Specifically, the light source arrangement portion 13 is inclined so that the front side is farther from the first wall portion 11 (ceiling surface C) and the rear side is closer to the first wall portion 11 (ceiling surface C). In other words, the light source arrangement portion 13 is inclined obliquely forward and downward. Further, the back surface of the light source placement portion 13 faces the first wall portion 11, and the angle between the back surface of the light source placement portion 13 and the first wall portion 11 is an acute angle. In this case, the housing space forming part 111 may be omitted.

INDUSTRIAL APPLICABILITY The present invention is useful for lighting fixtures.

1 housing 3 light emitting unit 4 power supply device 4s front (one side)
11 first wall (outer wall)
13 light source arrangement portion 61 first power line 111 accommodation space forming portion 132 facing surface S accommodation space

Claims (2)

a power line that transmits primary power;
a power supply that generates secondary power based on the primary power;
a light source that emits light based on the secondary power;
a light source placement unit in which the light source is placed ;
an accommodation space forming portion that forms an accommodation space in which the power line is accommodated together with the light source arrangement portion;
with
The light source arrangement portion has a facing surface facing one side surface of the power supply device,
the facing surface is inclined with respect to one side surface of the power supply device and further faces the housing space forming portion;
The accommodation space is formed between the facing surface , one side surface of the power supply device, and the accommodation space forming portion ,
The light source arrangement portion has an edge portion connected to the accommodation space forming portion,
an angle between the facing surface and the accommodation space forming portion is an acute angle;
the edge is positioned away from the light source;
The lighting fixture, wherein the power line is sandwiched and positioned between the facing surface and the housing space forming portion on the edge side . The lighting fixture according to claim 1 , wherein the light source arrangement portion has a plate shape.

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