JP6956377B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire having a light emitting element such as an LED (Light Emitting Diode).

Conventionally, for example, a ceiling light which is a lighting fixture arranged on a construction material such as a ceiling is known (see, for example, Patent Document 1). In the lighting fixtures, there are lighting fixtures that are attached to and detached from wiring fixtures such as so-called hook ceilings that are attached to the construction material in advance, and there are lighting fixtures that are directly fixed to the construction material.

Japanese Unexamined Patent Publication No. 2016-21369

Here, in the case of the latter lighting fixture, it is common that a fixing member for attaching the fixture main body to the building material is interposed between the fixture main body of the lighting fixture and the building material. For this reason, a gap is formed by the fixing member between the instrument main body and the construction material, and the appearance is impaired.

An object of the present invention is to provide a lighting fixture capable of improving the appearance by reducing the distance between the construction material and the fixture main body.

In order to achieve the above object, one aspect of the lighting fixture according to the present invention is a fixture main body having a concave portion dented toward the opposite side of the building material, a mounting member attached to the concave portion of the fixture main body, and a mounting member. It is provided with a fixing member for fixing the instrument body to the building material, and the fixing member protrudes from the center of the flat plate portion in contact with the building material toward the side opposite to the building material. A connecting portion connected to the mounting member is provided, and the distance from the bottom of the recess of the instrument body to the building material is regulated by the mounting member, the connecting portion, and the flat plate portion.

According to the lighting fixture according to the present invention, the appearance can be improved by reducing the distance between the building material and the fixture main body.

FIG. 1 is an exploded perspective view of the lighting fixture according to the first embodiment. FIG. 2 is a cross-sectional view of the lighting fixture according to the first embodiment. FIG. 3 is an enlarged perspective view showing the mounting member and the fixing member according to the first embodiment in an enlarged manner. FIG. 4 is a plan view of the mounting member according to the first embodiment. FIG. 5 is a plan view of the fixing member according to the first embodiment. FIG. 6 is a cross-sectional view showing a mounting member and a fixing member according to the second embodiment. FIG. 7 is a cross-sectional view showing the fixing member and the fixing member according to the third embodiment.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below show a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions of the components, connection forms, and the like shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components.

It should be noted that each figure is a schematic view and is not necessarily exactly shown. Further, in each figure, substantially the same configuration is designated by the same reference numerals, and duplicate description may be omitted or simplified.

(Embodiment 1)
Hereinafter, the lighting fixture 100 according to the first embodiment will be described.

[Overall configuration of lighting equipment]
First, the overall configuration of the lighting fixture 100 according to the first embodiment will be described with reference to FIG. FIG. 1 is an exploded perspective view of the lighting fixture 100 according to the first embodiment. FIG. 2 is a cross-sectional view of the lighting fixture 100 according to the first embodiment. Specifically, FIG. 2 is a cross-sectional view of the center of the luminaire 100 in FIG. 1 as seen from a cut surface cut along a ZX plane.

As shown in FIGS. 1 and 2, the luminaire 100 of the present embodiment is a ceiling light attached to a construction material 200 such as a ceiling. The positive direction of the Z axis in FIG. 1 corresponds to the upward direction, that is, the direction on the construction material 200 side. In other words, the negative direction of the Z axis corresponds to the downward direction, that is, the direction opposite to the construction material 200 side. In the present embodiment, the ceiling is illustrated as the construction material 200, but the construction material may be a wall.

The lighting fixture 100 according to the present embodiment includes a fixture main body 10, a light emitting module 20, a circuit cover 30, a light source cover 40, a lighting cover (not shown), a terminal block 50, a mounting member 60, and a fixing member 70. And have. Hereinafter, these will be described in detail.

[Instrument body]
As shown in FIGS. 1 and 2, the instrument main body 10 is formed in a disk shape, and is a member manufactured by using a sheet metal such as an aluminum plate or a steel plate. For example, a white paint having high light reflectance is applied or a reflective metal material is vapor-deposited on the surface of the instrument body 10 on the side where the light emitting module 20 and the like are arranged.

Further, a circular opening 10a is provided in the central portion of the instrument main body 10, and a substantially cylindrical support portion 11 extending from the peripheral edge of the opening 10a toward the light emitting module 20 is arranged. The support portion 11 is, for example, a member made of resin, and a terminal block 50 is arranged inside the support portion 11.

It includes an instrument main body 10, an outer peripheral portion 12, and an inner peripheral portion 13 inside the outer peripheral portion. The outer peripheral portion 12 and the inner peripheral portion 13 have a double ring shape as a whole.

The outer peripheral portion 12 includes a flat first mounting surface portion 121 and an upright portion 122 erected on the outer peripheral edge of the first mounting surface portion 121, and these are provided over the entire circumference. A lighting cover is attached to the first mounting surface portion 121, and the standing portion 122 covers the boundary between the first mounting surface portion 121 and the lighting cover from the side to suppress leakage of light.

The inner peripheral portion 13 is a concave portion that is dented downward with respect to the outer peripheral portion 12. Specifically, the inner peripheral portion 13 is dented from the outer peripheral portion 12 toward the side opposite to the construction material 200. Since the inner peripheral portion 13 is dented with respect to the outer peripheral portion 12, the rigidity of the instrument main body 10 can be increased, and the distortion of the instrument main body 10 is suppressed.

The inner peripheral portion 13 is provided with a flat second mounting surface portion 131 and an inclined portion 132 continuous from the first mounting surface portion 121 to the second mounting surface portion 131 over the entire circumference. The second mounting surface portion 131 is parallel to the first mounting surface portion 121 and is arranged below the first mounting surface portion 121. The light emitting module 20 is attached to the second attachment surface portion 131.

Further, the inner peripheral portion 13 is provided with a storage recess 133 located inward of the second mounting surface portion 131. The accommodating recess 133 is concave with respect to the second mounting surface portion 131. The bottom surface of the accommodating recess 133 is arranged between the first mounting surface portion 121 and the second mounting surface portion 131 in the Z-axis direction. The circuit component mounted on the light emitting module 20 is housed in the housing recess 133. That is, since the circuit parts are housed in the housing recess 133 that fits between the first mounting surface portion 121 and the second mounting surface portion 131, the entire instrument body 10 can be made compact. An opening 10a is provided in the center of the accommodating recess 133, and a support portion 11 is attached to the inner peripheral edge of the accommodating recess 133 so as to surround the opening 10a.

[Light emitting module]
The light emitting module 20 includes a substrate 21, a plurality of light emitting elements 23 arranged on the substrate 21, and a plurality of circuit components 80. Here, the main surface of the substrate 21 on the side opposite to the instrument body 10 side is the first main surface 21a, and the main surface on the instrument body 10 side is the second main surface 21b. That is, the first main surface 21a faces the floor side, and the second main surface 21b faces the construction material 200 side. A plurality of light emitting elements 23 and circuit components 80 are arranged on the first main surface 21a, and the remaining circuit components 80 are arranged on the second main surface 21b.

The substrate 21 has a rectangular outer shape with rounded corners in a plan view, and is provided with a circular opening 22 at the center. That is, the substrate 21 has an annular shape.

As the substrate 21, for example, a glass composite substrate such as a CEM3 (Composite epixy material-3) substrate, a resin substrate, a ceramic substrate, a paper phenol substrate, or the like is adopted.

Each of the plurality of light emitting elements 23 of the present embodiment is, for example, a surface mount type light emitting element in which an LED chip is packaged. That is, the mounting structure of the light emitting module 20 is an SMD (Surface Mount Device) structure in which an LED element in which an LED chip is packaged is mounted on a substrate 21.

The plurality of light emitting elements 23 are arranged side by side in an annular shape so as to surround the opening 22 of the substrate 21. In addition, as for the mode of electrical connection of the plurality of light emitting elements 23, for example, a plurality of groups (light emitting element groups) of n (n is an integer of 2 or more) connected in series are formed, and these plurality of light emitting elements 23 are electrically connected. The group of light emitting elements of the above may be connected in parallel. Further, all the light emitting elements 23 arranged on the substrate 21 may be connected in series.

The plurality of circuit components 80 are arranged in a region inside the plurality of light emitting elements 23 arranged in a ring shape. A part of the plurality of circuit components 80 is a component that constitutes at least a part of an electric circuit used for operating the plurality of light emitting elements 23. Here, the operation of the plurality of light emitting elements 23 includes lighting, extinguishing, changing the dimming rate, and the like of the plurality of light emitting elements 23. Further, the other part of the plurality of circuit components 80 is configured with a power supply circuit that supplies electric power for light emission to the plurality of light emitting elements 23. The power supply circuit is connected to the terminal block 50 by a power cable (not shown). It should be noted that this "connection" includes an electrical connection and a mechanical connection. As a result, AC power from the commercial power supply is supplied to the power supply circuit via the terminal block 50 and the power cable. Since the power supply circuit converts AC power into DC power suitable for light emission of the light emitting element 23 and supplies it, the plurality of light emitting elements 23 emit light.

[Circuit cover]
Next, the circuit cover 30 will be described. FIG. 1 illustrates a state in which the circuit cover 30 and the light source cover 40 are assembled. As shown in FIGS. 1 and 2, the circuit cover 30 is a member that covers the area of the substrate 21 on which the circuit component 80 is installed from the first main surface 21a side.

An opening 31 is provided in the center of the circuit cover 30, and the support portion 11 is fitted into the inner peripheral edge of the circuit cover 30 forming the opening 31. The circuit cover 30 is formed in a substantially cup shape that is dented downward. The circuit cover 30 covers the circuit component 80, the power cable, and the like. The circuit cover 30 faces the accommodating recess 133 of the instrument main body 10 via the substrate 21. The outer peripheral portion of the circuit cover 30 is fixed to the substrate 21 by a plurality of screws (not shown). In the present embodiment, the circuit cover 30 is made of a metal such as iron or aluminum and has nonflammability. The circuit cover 30 may be made of resin. Further, the portion forming the outer surface of the circuit cover 30 functions as a reflecting surface that reflects the light emitted from the plurality of light emitting elements 23.

Further, for example, a resin insulating sheet may be arranged on the inner surface of the circuit cover 30. As a result, the inner surface of the circuit cover 30 can be brought closer to the circuit component 80 inside the circuit cover 30, and as a result, the circuit cover 30 can be miniaturized.

[Light source cover]
Next, the light source cover 40 will be described. As shown in FIGS. 1 and 2, the light source cover 40 is a member that covers a plurality of light emitting elements 23 of the light emitting module 20, and is formed of, for example, a transparent resin or the like. The light source cover 40 is formed in a donut shape, and is fixed to the first main surface 21a of the substrate 21 in a state of surrounding the circuit cover 30 and covering a plurality of light emitting elements 23 arranged in an annular shape. .. The light source cover 40 may be made of a material having light diffusivity. Examples of the material having light diffusivity include milky white resin and the like. Further, the light source cover 40 may include a lens for controlling the light distribution of the light from the plurality of light emitting elements 23.

[Lighting cover]
Next, the lighting cover will be described. The lighting cover is a member that covers the side of the fixture body 10 to which the light emitting module 20 and the like are attached, and is made of a translucent resin. The lighting cover is made of, for example, a milky white resin, and can diffuse the light from each light emitting element 23 and emit it to the outside. Further, the lighting cover is detachably attached to, for example, the fixture main body 10.

[Terminal block]
Next, the terminal block 50 will be described. As shown in FIG. 1, the terminal block 50 includes a pedestal 51 and a terminal portion 52. The pedestal 51 is attached together with the attachment member 60 to the inner peripheral edge of the accommodating recess 133 in the instrument body 10. Specifically, the pedestal 51 is formed of sheet metal and includes a pair of leg portions 511 and a beam portion 512. The bases of the pair of legs 511 are bent and fixed to the inner peripheral edge of the accommodating recess 133 together with the mounting member 60 by screws (not shown) or the like. The beam portion 512 is bridged between the tip portions of the pair of leg portions 511, and the terminal portion 52 is attached to the beam portion 512.

The terminal portion 52 is a connector electrically connected to the power supply circuit via a power supply cable. Wiring (not shown) drawn from the construction material 200 can be detachably connected to the terminal portion 52. The wiring is electrically connected to the commercial power supply, and when the wiring is connected to the terminal portion 52, the AC power from the commercial power supply is supplied to the power supply circuit via the wiring, the terminal block 50, and the power cable. NS. That is, the terminal portion 52 is an electrical connection portion that receives power from an external commercial power source.

[Mounting member]
Next, the mounting member 60 will be described. FIG. 3 is an enlarged perspective view showing the mounting member 60 and the fixing member 70 according to the first embodiment in an enlarged manner. FIG. 4 is a plan view of the mounting member 60 according to the first embodiment. FIG. 4 is a plan view of the mounting member 60 when viewed from below.

The mounting member 60 is a member that is mounted on the inner peripheral portion 13 of the instrument main body 10. The mounting member 60 supports the instrument main body 10 in a state of being fixed to the building material 200 by the fixing member 70. The mounting member 60 can be formed of, for example, metal or resin. In the present embodiment, the mounting member 60 is made of metal from the viewpoint of heat transfer and strength. The mounting member 60 includes a bottomed cylindrical protrusion 61 and a collar 62.

The protrusion 61 projects toward the construction material 200 with respect to the collar 62. A bottom portion 611 is provided at the tip portion of the protrusion 61. A circular through hole 612 through which the wiring is passed is provided in the center of the bottom portion 611. Further, around the through hole 612 in the bottom portion 611, a pair of engaging holes 613 facing each other with the through hole 612 interposed therebetween are provided. The pair of engaging holes 613 includes an arc-shaped slit portion 614 and a circular hole portion 615 provided at one end of the slit portion 614. Each of the pair of engaging holes 613 is arranged so that the slit portion 614 is aligned on the same circumference. Each circular hole portion 615 of the pair of engaging holes 613 is provided at the tip portion in the clockwise direction. The circular hole portion 615 has a diameter larger than the width of the slit portion 614. A screw 64 for fastening the mounting member 60 and the fixing member 70 is inserted into the engaging hole 613. Specifically, the slit portion 614 of the engaging hole 613 has a width through which the shaft portion of the screw 64 can be inserted, but the screw head cannot be inserted. Further, the circular hole portion 615 of the engaging hole 613 has a size that allows the screw head of the screw 64 to be inserted.

The collar portion 62 is provided at the lower end of the protrusion 61, and is provided over the entire circumference of the collar portion 62. The collar portion 62 is formed in a substantially oval shape. A pair of notches 621 are provided in the curved portion of the collar portion 62 at positions facing each other with the protrusion 61 interposed therebetween. A screw (not shown) for fixing the mounting member 60 and the terminal block 50 to the instrument main body 10 is fastened to the notch 621.

[Fixing member]
Next, the fixing member 70 will be described. FIG. 5 is a plan view of the fixing member 70 according to the first embodiment. FIG. 5 is a plan view of the fixing member 70 when viewed from below.

The fixing member 70 is a member for fixing the instrument main body 10 to the building material 200 by being assembled to the instrument main body 10 via the mounting member 60. The fixing member 70 can be formed of, for example, metal or resin. In the present embodiment, the fixing member 70 is made of metal from the viewpoint of heat transfer and strength. The fixing member 70 includes an annular flat plate portion 71 and a connecting portion 72 provided inside the flat plate portion 71.

The flat plate portion 71 is a plate-shaped portion in contact with the construction material 200, and is formed in an annular shape in a plan view. The flat plate portion 71 is provided with a plurality of elongated holes 711 radially. In this embodiment, a case where four elongated holes 711 are provided is illustrated. A locking tool 300 that is locked to the construction material 200 is inserted into the elongated hole 711. The locking tool 300 may be any device that can fix the flat plate portion 71 and the construction material 200 in a state of being inserted into the elongated hole 711, and examples thereof include screws and nails. In the present embodiment, a screw will be illustrated as the locking tool 300. The elongated hole 711 has a size in which the shaft of the screw, which is the locking tool 300, can be inserted, and the screw head cannot be inserted.

The elongated hole 711 extends along the radial direction of the circle centered on the center of gravity of the flat plate portion 71 in a plan view. Specifically, a pair of elongated holes 711 out of the four elongated holes 711 extend in the X-axis direction and face each other with the connecting portion 72 interposed therebetween. The pair of elongated holes 711 arranged in the X-axis direction are referred to as first elongated holes 711a, respectively.

On the other hand, the remaining pair of elongated holes 711 out of the four elongated holes 711 extend in the Y-axis direction and face each other with the connecting portion 72 in the Y-axis direction. The pair of elongated holes 711 arranged in the Y-axis direction are referred to as second elongated holes 711b, respectively.

Of the two pairs of elongated holes 711, the locking tool 300 is inserted into at least a pair of elongated holes 711. In the present embodiment, as shown in FIG. 2, a case where the locking tool 300 is inserted into the pair of first elongated holes 711a is illustrated.

Further, as shown in FIGS. 4 and 5, ribs 712 are provided on the outer peripheral edge of the flat plate portion 71 over the entire circumference. The rib 712 is erected downward from the flat plate portion 71. The rib 712 has a lower height than the connecting portion 72. Since the flat plate portion 71 is reinforced by the rib 712, the flatness of the flat plate portion 71 is maintained.

The connecting portion 72 is a portion connected to the instrument main body 10 via the mounting member 60. Specifically, the connecting portion 72 is a protruding portion that protrudes downward on the instrument main body 10 side with respect to the flat plate portion 71. The connecting portion 72 is formed in a bottomed cylindrical shape. Here, the radial width of the connecting portion 72 when viewed in a plan view is smaller than the radial width of the flat plate portion 71. That is, the area of the flat plate portion 71 is larger than the area of the connecting portion 72 when viewed in a plan view. As a result, the contact area between the flat plate portion 71 and the building material 200 can be increased, and the heat transferred from the instrument main body 10 to the fixing member 70 via the mounting member 60 can be efficiently dissipated to the building material 200. Can be done.

The bottom portion 611 of the mounting member 60 is overlapped and fixed to the bottom portion 721 of the connecting portion 72. Specifically, a circular through hole 722 through which the wiring is passed is provided in the center of the bottom portion 721 of the connecting portion 72. Further, a plurality of circular connecting holes 723 are radially provided around the through hole 722 in the bottom portion 721. The connecting hole 723 is a hole for assembling the fixing member 70 to the instrument main body 10 via the mounting member 60. Specifically, a female screw is provided on the inner peripheral surface of the connecting hole 723. The shaft portion of the screw 64 is tightened with respect to the female screw of the connecting hole 723.

In the present embodiment, the case where four connecting holes 723 are provided like the elongated holes 711 is illustrated. However, the number of connecting holes 723 and the elongated holes 711 need not be the same.

Of the four connecting holes 723, the pair of connecting holes 723 face each other with the through hole 722 in the X-axis direction. The pair of connecting holes 723 arranged in the X-axis direction are referred to as first connecting holes 723a, respectively. The pair of first connecting holes 723a are arranged along the X-axis direction with the pair of first elongated holes 711a. That is, the pair of first connecting holes 723a and the pair of first elongated holes 711a, which form a corresponding set, are arranged in the same linear shape.

On the other hand, the remaining pair of connecting holes 723 of the four connecting holes 723 face each other with the through hole 722 in the Y-axis direction. The pair of connecting holes 723 arranged in the Y-axis direction are referred to as second connecting holes 723b, respectively. The pair of second connecting holes 723b are arranged along the Y-axis direction with the pair of second elongated holes 711b. That is, the pair of second connecting holes 723b and the pair of second elongated holes 711b, which form a corresponding set, are arranged in the same linear shape.

Of the two pairs of connecting holes 723, the shaft portion of the screw 64 is tightened to the pair of connecting holes 723. In the present embodiment, as shown in FIG. 2, a case where the shaft portion of the screw 64 is tightened to the pair of first connecting holes 723a is illustrated. That is, in the present embodiment, the screw 64 or the locking tool 300 is assembled to each of the pair of first connecting holes 723a and the pair of first elongated holes 711a, which are opposite sets.

[How to fix the mounting member and the fixing member]
Next, a method of fixing the mounting member 60 and the fixing member 70 will be described. At the time of fixing, it is assumed that the fixture main body 10, the light emitting module 20, the circuit cover 30, the light source cover 40, the terminal block 50, and the mounting member 60 are integrated in advance, and the lighting cover and the fixing member are integrated. It is assumed that 70 and 70 are disassembled.

First, a procedure for fixing the fixing member 70 to the construction material 200 will be described. Specifically, the operator positions the fixing member 70 at a predetermined position of the building material 200 in a state where the wiring drawn from the building material 200 is passed through the through hole 722 of the fixing member 70. At the time of positioning, the operator determines the alignment direction of the pair of first elongated holes 711a, that is, the direction in the X-axis direction by rotating the fixing member 70 about the Z-axis direction.

After positioning, the operator inserts the locking tool 300 into the pair of first elongated holes 711a of the fixing member 70. At this time, the locking tool 300 can be inserted at any position in the pair of first elongated holes 711a. Therefore, the operator determines a fixing position suitable for fixing the locking tool 300 while checking the surface condition of the construction material 200 exposed from the pair of first elongated holes 711a. After that, the operator inserts the shaft of the locking tool 300 into the first elongated hole 711a, tightens it at the fixed position of the construction material 200, and embeds it. As a result, the screw head of the locking tool 300 fastens the flat plate portion 71 of the fixing member 70, so that the fixing member 70 is fixed to the construction material 200.

If the locking tool 300 attached to each of the pair of first elongated holes 711a is temporarily fixed to the construction material 200, the locking tool 300 can be slid in the first elongated hole 711a. .. As a result, the position of the fixing member 70 in the X-axis direction can be adjusted while the fixing member 70 is temporarily fixed.

Next, a procedure for fixing the mounting member 60 to the fixing member 70 will be described. Specifically, the operator temporarily fixes the screw 64 to the pair of first connecting holes 723a of the fixing member 70. After that, the operator aligns the mounting member 60 with respect to the fixing member 70 so that the screw heads of the pair of temporarily fixed screws 64 penetrate the circular hole portion 615 of the engaging hole 613. When the screw heads of the pair of screws 64 are penetrated through the circular hole portion 615 of the engaging hole 613, the operator rotates the mounting member 60 about the Z-axis direction. By this rotation, the slit portion 614 of the engaging hole 613 moves with respect to the shaft of the screw 64, and finally, the shaft of the screw 64 is arranged at the tip of the slit portion 614. As a result, the orientations of the fixing member 70 and the mounting member 60 in the X-axis direction are the same. Next, the operator tightens the screw 64 to fix the mounting member 60 and the fixing member 70.

After fixing, as shown in FIG. 2, the distance H from the bottom of the inner peripheral portion 13 which is the recess of the instrument main body 10 to the building material 200 is determined by the mounting member 60, the connecting portion 72, and the flat plate portion 71. It is regulated. In the present embodiment, the starting point is the vicinity of the opening 10a in the inner peripheral portion 13, and the length up to the building material 200 in the Z-axis direction is the width H.

As described above, a part of the attachment member 60 and the fixing member 70, which are members for attaching the instrument main body 10 to the construction material 200, is housed in the inner peripheral portion 13. Specifically, in the present embodiment, in the side view, the tip end portion of the protrusion 61 of the mounting member 60 protrudes from the instrument main body 10, and the other portion is housed in the inner peripheral portion 13.

Here, when there is no recess in the instrument body, substantially the entire mounting member and fixing member are exposed from the instrument body in a side view. For this reason, the gap between the construction material and the instrument body becomes large. On the other hand, if a part of the mounting member 60 is housed in the inner peripheral portion 13 which is a recess as in the present embodiment, the part is buried in the instrument main body 10 in a side view. As a result, the gap S between the construction material 200 and the instrument main body 10 can be reduced.

[Effects, etc.]
As described above, according to the lighting fixture 100 according to the present embodiment, the fixture main body 10 having a concave portion (inner peripheral portion 13) dented toward the side opposite to the building material 200 and the concave portion of the fixture main body 10 A mounting member 60 to be attached and a fixing member 70 attached to the mounting member 60 for fixing the instrument main body 10 to the building material 200 are provided, and the fixing member 70 includes a flat plate portion 71 in contact with the building material 200. A connecting portion 72 that protrudes from the center of the flat plate portion 71 toward the side opposite to the building material 200 and is connected to the mounting member 60 is provided, and the distance H from the bottom of the recess of the instrument body 10 to the building material 200 is set. It is regulated by the mounting member 60, the connecting portion 72, and the flat plate portion 71.

According to this configuration, the distance H from the bottom of the recess of the instrument body 10 to the building material 200 is regulated by the mounting member 60, the connecting portion 72, and the flat plate portion 71. A part of the member that causes the gap S is housed in the recess of the instrument body 10. As a result, since a part of the lighting fixture is buried in the fixture body 10 in the side view, the gap S between the construction material 200 and the fixture body 10 can be reduced, and the appearance after the lighting fixture 100 is installed in the fixture body 200 can be improved. Can be improved.

Further, the mounting member 60 has a protruding portion 61 projecting toward the building material 200 side, and the connecting portion 72 of the fixing member 70 is attached to the protruding portion 61.

According to this configuration, the mounting member 60 has a protrusion 61, and the connecting portion 72 of the fixing member 70 is attached to the protrusion 61. Therefore, when a mounting member having no protrusion is used. The amount of protrusion of the connecting portion 72 can be suppressed as compared with the above. This makes it possible to reduce the size of the fixing member 70.

Further, the connecting position between the protrusion 61 and the connecting portion 72 can be arranged in the gap S, and even after the installation, the protrusion 61 and the connecting portion 72 are connected to each other from the outside of the instrument main body 10 via the gap S. It is possible to visually recognize the connected state.

After assembling the mounting member 60 and the fixing member 70, the shaft portion of the screw 64 tightened in the connecting hole 723 is housed in the connecting portion 72. Therefore, the protruding amount of the connecting portion 72 is set to a size that can accommodate the shaft portion of the screw 64. Generally, it is said that a stable fastening force can be maintained by projecting the shaft of the screw 64 from the connecting hole 723 by the amount of displacement in the axial direction when the screw 64 is rotated at least three times. Therefore, the amount of protrusion of the connecting portion 72 may be set to a length that can accommodate the amount of displacement in the axial direction when the screw 64 is rotated three times.

Further, in a plan view, the area of the flat plate portion 71 is larger than the area of the connecting portion 72.

Since the area of the flat plate portion 71 is larger than the area of the connecting portion 72 when viewed in a plan view, the contact area between the flat plate portion 71 and the construction material 200 can be increased. Therefore, the heat transferred from the instrument main body 10 to the fixing member 70 via the mounting member 60 can be efficiently dissipated from the flat plate portion 71 to the building material 200.

(Embodiment 2)
In the first embodiment, the case where the fixing member 70 is connected to the mounting member 60 having the protrusion 61 is illustrated. In the second embodiment, a case where the fixing member is connected to the flat plate-shaped mounting member will be described. In the following description, the same parts as those in the first embodiment may be designated by the same reference numerals and the description thereof may be omitted.

FIG. 6 is a cross-sectional view showing a mounting member 60A and a fixing member 70A according to the second embodiment. As shown in FIG. 6, the mounting member 60A is formed in a flat plate shape as a whole, and is different from the mounting member 60 of the first embodiment in that there is no protrusion 61. On the other hand, the fixing member 70A is basically the same as the fixing member 70 of the first embodiment, but the protruding amount of the connecting portion 72a of the fixing member 70A is larger than that of the connecting portion 72 of the fixing member 70. Is different. In the second embodiment, the amount of protrusion of the connecting portion 72a is such that the tip end portion of the connecting portion 72a is accommodated in the inner peripheral portion 13 of the instrument main body 10.

Also in the second embodiment, the distance H1 from the bottom of the inner peripheral portion 13 which is the recess of the instrument main body 10 to the building material 200 is regulated by the mounting member 60A, the connecting portion 72a, and the flat plate portion 71. As a result, the mounting member 60A and the tip end portion of the connecting portion 72a are housed in the recess of the instrument main body 10. As a result, since the mounting member 60A and the tip end portion of the connecting portion 72a are buried in the instrument main body 10 in the side view, the gap S1 between the building material 200 and the instrument main body 10 can be reduced.

Further, since the mounting member 60A has a flat plate shape, it is possible to reduce the thickness of the mounting member 60A.

(Embodiment 3)
In the second embodiment, a case where the tip end portion of the connecting portion 72a is housed in the inner peripheral portion 13 which is a concave portion of the instrument main body 10 is illustrated. In the third embodiment, a case where almost the entire connecting portion is housed in the recess of the instrument main body 10 will be described. In the following description, the same parts as those in the first and second embodiments may be designated by the same reference numerals and the description thereof may be omitted.

FIG. 7 is a cross-sectional view showing a mounting member 60A and a fixing member 70B according to the third embodiment. In the third embodiment, the flat plate-shaped mounting member 60A illustrated in the second embodiment is adopted. Also in the third embodiment, the distance H2 from the bottom of the inner peripheral portion 13 which is the recess of the instrument main body 10 to the building material 200 is regulated by the mounting member 60A, the connecting portion 72b, and the flat plate portion 71.

The fixing member 70B is basically the same as the fixing member 70 of the first embodiment, but the amount of protrusion of the connecting portion 72b of the fixing member 70B overlaps with the flat plate portion 71 of the fixing member 70B in a side view. The portion that does not become is long enough to fit in the recess of the instrument body 10. As a result, the portion of the fixing member 70B exposed from the flat plate portion 71, that is, the portion of the connecting portion 72b protruding from the rib 712 is accommodated in the recess of the instrument main body 10 in the side view.

As described above, the gap S2 formed by the building material 200 and the instrument main body 10 is about the height of the flat plate portion 71, so that the gap S2 can be made smaller.

Here, the case where the flat plate portion 71 of the fixing member 70 is not housed in the recess of the instrument main body 10 in the side view is illustrated, but the flat plate portion 71 can also be housed in the recess. As a result, the gap between the construction material 200 and the instrument main body 10 can be made smaller. However, if the gap between the building material 200 and the instrument body 10 is too small, the heat radiated from the instrument body 10 will be accumulated in the space formed by the recesses of the building material 200 and the instrument body 10. Therefore, as described above, if a gap S2 having a height of about the flat plate portion 71 is provided, heat can be released from the gap S2 to the outside.

Further, when the flat plate portion 71 does not have the rib 712, the gap may be set by the wall thickness of the flat plate portion 71. In this case, in the side view, the entire connecting portion 72b of the fixing member 70B is housed in the recess of the instrument main body 10.

(Other embodiments)
Although the present invention has been described above based on the first to third embodiments, the present invention is not limited to the first to third embodiments.

For example, in the above-described first to third embodiments, the case where the mounting members 60 and 60A and the fixing members 70, 70A and 70B are originally separate bodies is illustrated, but the mounting member and the fixing member are integrally formed. It doesn't matter.

Further, as the substrate 21 of the light emitting module 20, in addition to the glass composite substrate and the resin substrate exemplified in the above embodiment, for example, a metal base substrate made of a metal material whose surface is coated with a resin may be adopted. In this case, for example, the heat of the plurality of light emitting elements 23 and the plurality of circuit components 80 surface-mounted on the substrate 21 is efficiently conducted to the instrument main body 10 via the substrate 21.

Further, the outer shape of the substrate 21 is not limited to the outer shape shown in FIG. 1, for example. For example, the light emitting module may be provided with an annular substrate having an opening in the center.

Further, the outer shape of the instrument main body 10 is not limited to the outer shape shown in FIG. 1 and the like. The instrument main body 10 may have a polygonal outer shape such as a rectangle in a plan view, or may have an outer shape composed of a straight line and a curved line.

Further, the outer shape of the mounting member 60 is not limited to the outer shape shown in FIG. 4 and the like. The mounting member 60 may have a circular shape or a polygonal shape in a plan view, for example.

Further, the outer shape of the fixing member 70 is not limited to the outer shape shown in FIG. 5 and the like. The fixing member 70 may have a polygonal outer shape such as a rectangle in a plan view, or may have an outer shape composed of a straight line and a curved line.

Further, in the above embodiment, an elongated hole 711 extending along the radial direction of a circle centered on the center of gravity of the flat plate portion 71 in a plan view is illustrated. However, the extending direction of the elongated hole 711 may be arbitrary. Specifically, it may be an elongated hole extending along the circumferential direction of a circle centered on the center of gravity of the flat plate portion 71 in a plan view, or an elongated hole extending in a direction intersecting the radial direction of the circle. May be good.

Further, in the above-described embodiment and modification, an LED element in which an LED chip is packaged is exemplified as the light emitting element 23. However, a semiconductor light emitting element such as a semiconductor laser, or another type of solid light emitting element such as an organic EL (Electro Luminescence) or an EL element such as an inorganic EL may be adopted as the light emitting element 23.

In addition, a form obtained by applying various modifications to the above-described embodiment and its modification, and components and functions in each embodiment and its modification without departing from the spirit of the present invention. The present invention also includes a form realized by arbitrarily combining the above.

10 Instrument body 13 Inner circumference (recess)
60, 60A Mounting member 61 Protrusion 70, 70A, 70B Fixing member 71 Flat plate 72, 72a, 72b Connecting 100 Lighting fixture 200 Construction material H, H1, H2 Interval

Claims (3)

The instrument body, which has a recess that is dented toward the opposite side of the construction material,
A mounting member attached to the recess of the instrument body and
A fixing member that is attached to the mounting member and for fixing the instrument body to the building material is provided.
The fixing member is
The flat plate part in contact with the construction material and
It is provided with a bottomed cylindrical connecting portion that protrudes from the center of the flat plate portion toward the side opposite to the construction material and is connected to the mounting member.
The distance from the bottom of the recess of the instrument body to the building material is regulated by the mounting member, the connecting portion, and the flat plate portion .
The mounting member has a bottomed cylindrical protrusion that protrudes toward the building material side.
A through hole is formed in the center of the bottom of the protrusion.
A through hole is formed in the center of the bottom of the connecting portion.
A lighting fixture in which the bottom of the protrusion and the bottom of the connecting portion are overlapped and fixed over the entire circumference. The luminaire according to claim 1 , wherein a portion of the fixing member that does not overlap the flat plate portion and the mounting member are housed in the recess. The luminaire according to claim 1 or 2 , wherein the area of the flat plate portion is larger than the area of the connecting portion in a plan view.

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