JP2016192276A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire which achieves thickness reduction.SOLUTION: A luminaire 1 includes: a substrate 21; a terminal unit 29; and an attachment part 27. A power supply circuit 22 is formed on the substrate 21. The terminal unit 29 includes a terminal 29a electrically connected with the power supply circuit 22. The terminal unit 29 is attached to the attachment part 27. The substrate 21 has a first cutout part 31. The terminal unit 29 is attached to a first attachment surface 32a of the attachment part 27. The first attachment surface 32a faces a first cutout area A defined by the first cutout part 31.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting fixture.

  The lighting device described in Patent Document 1 includes a plurality of LEDs, a lighting circuit that lights the plurality of LEDs, a quick connection terminal to which a power line is connected, and a substrate. The plurality of LEDs, the lighting circuit, and the quick connection terminal are mounted on the substrate.

JP 2014-112470 A

  However, in the lighting device described in Patent Document 1, the quick connection terminal is mounted on the substrate, and thus protrudes from the substrate. Therefore, it is difficult to reduce the thickness of the lighting device.

  This invention is made | formed in view of the said subject, The objective is to provide the lighting fixture which can implement | achieve thickness reduction.

  The lighting fixture disclosed in the present application includes a substrate, a terminal unit, and an attachment portion. A circuit is formed on the substrate. The terminal unit includes a terminal electrically connected to the circuit. The terminal unit is attached to the attachment portion. The substrate has a first cutout. The terminal unit is attached to the first attachment surface of the attachment portion. The first mounting surface is opposed to a cutout region defined by the first cutout portion.

  It is preferable that the lighting fixture disclosed in the present application further includes a holding member that holds the substrate. The holding member preferably has a second cutout portion formed along the first cutout portion.

  In the lighting fixture disclosed in the present application, it is preferable that an edge of the holding member is positioned outside the substrate with respect to an edge of the substrate, and the edge of the holding member includes an edge of the second notch portion. It is preferable that a recess is formed on an edge different from the edge of the second cutout portion of the edge of the holding member.

  It is preferable that the lighting fixture disclosed in the present application further includes a light source unit. The light source part preferably includes a light emitting element and is attached to the attachment part. It is preferable that the light source part is attached to a second attachment surface of the attachment part. The second mounting surface is preferably opposed to the first mounting surface.

  It is preferable that the lighting fixture disclosed in the present application further includes a sensor mounted on the substrate.

  It is preferable that the lighting fixture disclosed in the present application further includes a housing. It is preferable that the mounting portion is formed in the housing, and the housing accommodates the substrate. It is preferable that a first opening is formed in the housing.

  It is preferable that the lighting fixture disclosed in the present application further includes a housing. It is preferable that the mounting portion is formed in the housing, and the housing accommodates the substrate. It is preferable that the housing includes a curved first wall portion. It is preferable that the first wall portion is opposed to an edge of the first cutout portion and extends along a direction intersecting a surface of the substrate on which the circuit is formed.

  The lighting fixture disclosed in this application WHEREIN: It is preferable that the said 1st wall part opposes the one part edge of the said edge of a said 1st notch part. It is preferable that the lighting fixture further includes a holding member that holds the substrate. It is preferable that the holding member includes a flat second wall portion. It is preferable that the second wall portion is opposed to another part of the edge of the first cutout portion and extends along the direction intersecting the surface on which the circuit is formed. .

  A lighting fixture disclosed in the present application includes a housing in which a first opening and the mounting portion are formed, the housing for accommodating the substrate, a light emitting element, and a light source portion that is attached to an outer surface of the housing. A panel that covers the first opening from the outer surface side and has a second opening formed therein, and a sensor that is housed in the housing and exposed from the second opening through the first opening. It is preferable to further include a cover that covers the light source unit. The panel preferably includes an abutting portion with which the cover abuts.

  In the lighting fixture disclosed in the present application, it is preferable that a part or all of the panel is shielded from light.

  According to the present invention, it is possible to reduce the thickness of a lighting fixture.

(A) It is a perspective view which shows the front side of the lighting fixture which concerns on embodiment of this invention. (B) It is a top view which shows the front side of the lighting fixture which concerns on embodiment of this invention. It is sectional drawing along the II-II line of FIG.1 (b). It is a perspective view which shows the board | substrate and holding member of the lighting fixture which concern on embodiment of this invention. It is a top view which shows the back side of the lighting fixture which concerns on embodiment of this invention. It is a perspective view which shows the inside of the housing | casing of the lighting fixture which concerns on embodiment of this invention. It is a perspective view which shows a lighting fixture when a cover is removed from the lighting fixture which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof is not repeated. In the embodiment, the X axis and the Y axis are along the horizontal direction, the Z axis is along the vertical direction, and the X axis, the Y axis, and the Z axis are orthogonal to each other.

  Fig.1 (a) is a perspective view which shows the front side of the lighting fixture 1 which concerns on embodiment of this invention. FIG. 1B is a plan view showing the front side of the luminaire 1. As shown in FIGS. 1 (a) and 1 (b), the luminaire 1 has a substantially disk shape, and includes a light source unit 3, a sensor 5, a cover 7, a panel 9, and an exterior member 11. Prepare. For example, the lighting fixture 1 is attached to a ceiling wall or a side wall such as a ceiling.

  The light source unit 3 includes a plurality of LEDs (Light Emitting Diodes) 3a and a substrate 3b. The plurality of LEDs 3a are mounted on a substantially circular or substantially polygonal substrate 3b. The LED 3a functions as a light emitting element. For example, the light source unit 3 is an SMD (Surface Mount Device) type. In the SMD type, the LED 3a and the phosphor are integrated into one unit to form an LED chip, and a plurality of LED chips are placed on the mounting surface of the substrate 3b and electrically connected to the conductive pattern of the substrate 3b. 3. For example, the light source unit 3 may be a COB (Chip on Board) type. The COB type is a type in which the light source unit 3 is formed by sealing a plurality of LEDs 3a with a phosphor. The light source unit 3 may include one LED 3a.

  The cover 7 covers the light source unit 3. The cover 7 includes a substantially arcuate outer edge and a substantially straight outer edge. For example, the cover 7 diffuses and emits the light emitted from the LED 3a. For example, the cover 7 is formed by molding a resin mixed with a light diffusing material into a plate shape. For example, the cover 7 is formed by providing minute irregularities on the light emitting surface or light incident surface of a transparent plate member. For example, the cover 7 has a color such as white.

  The sensor 5 is, for example, a human sensor, which detects infrared rays emitted from humans or animals, or is a light / dark sensor, and detects the brightness of the environment. The sensor 5 is disposed at a position different from the light source unit 3 in plan view. The sensor 5 is exposed from a substantially circular second opening 52 formed in the panel 9. The first opening will be described later.

  The panel 9 includes a substantially inferior arc-shaped outer edge and a substantially straight outer edge. The panel 9 is adjacent to the cover 7, and the panel 9 and the cover 7 form a substantially circular shape. The panel 9 is shielded from light. Although it is preferable that the entire panel 9 is shielded from light, a part of the panel 9 may be shielded from light. For example, the panel 9 is formed of a light shielding material or painted with a light shielding paint. In addition, without providing the sensor 5 and the panel 9, the cover 7 can be formed in a substantially circular shape, and the light source unit 3 can be covered with the cover 7. The exterior member 11 is substantially cylindrical and forms an exterior of the lighting fixture 1.

  The detail of the lighting fixture 1 is demonstrated with reference to FIGS. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. As shown in FIG. 2, the lighting fixture 1 further includes a substrate 21, a holding member 23, a housing 25, an attachment portion 27, and a terminal unit 29 including a plurality of terminals 29 a.

  The board | substrate 21 and the holding member 23 are demonstrated with reference to FIG.2 and FIG.3. FIG. 3 is a perspective view showing the substrate 21 and the holding member 23. As shown in FIGS. 2 and 3, a power supply circuit 22 (circuit) is formed on the substrate 21. The power supply circuit 22 is connected to the light source unit 3 and supplies power to the light source unit 3. The power supply circuit 22 is electrically connected to a part of the plurality of terminals 29 a via the substrate 21. On the other hand, the power line 20 drawn from the outside of the lighting fixture 1 is connected to the other part of the plurality of terminals 29a, and the power supply voltage is supplied. Therefore, the power supply voltage supplied from the power supply line 20 is supplied to the power supply circuit 22 through the plurality of terminals 29a. That is, the terminal unit 29 electrically connects the power supply circuit 22 and the power supply line 20. The terminal unit 29 is a terminal block, for example. The power supply circuit 22 supplies power based on the power supply voltage to the light source unit 3.

  The sensor 5 is mounted on the substrate 21. Specifically, the sensor 5 is mounted on the substrate 21 so that the substrate 21 is substantially symmetric with respect to an axis of symmetry passing through the sensor 5.

  The board | substrate 21 has a substantially horseshoe shape in planar view, and has the 1st notch part 31 of a substantially U shape. Specifically, the substrate 21 is formed by cutting a substantially disk-shaped substrate into a substantially U shape. As a result, the first notch 31 is formed in the substrate 21. The edge E1 of the substrate 21 includes a substantially arcuate edge 31a of the first cutout portion 31, two substantially straight edges 31b of the first cutout portion 31, and a substantially arcuate edge 21a different from the edges 31a and 31b. Including.

  The holding member 23 holds the substrate 21 and includes a pair of second wall portions 72 facing each other. The first wall will be described later. The holding member 23 holding the substrate 21 is accommodated in the housing 25 so that the power supply circuit 22 faces the inner surface 26 a of the housing 25. The holding member 23 is a plate-like member, and is formed of a sheet metal such as a steel plate, for example.

  The holding member 23 has a substantially horseshoe shape in plan view, and has a substantially U-shaped second cutout portion 33 formed along the first cutout portion 31 of the substrate 21. Specifically, the holding member 23 is formed by cutting out a substantially disk-shaped plate-like member into a substantially keyhole shape and bending a pair of substantially rectangular portions at a substantially right angle. As a result, the holding member 23 is formed with a second notch 33 and a pair of second walls 72. The substantially keyhole shape is a shape having a semicircular contour portion and a contour portion protruding in a rectangular shape from a part of a straight line portion of the semicircular contour portion.

  The edge E <b> 2 of the holding member 23 is positioned outside the substrate 21 with respect to the edge E <b> 1 of the substrate 21. An edge E2 of the holding member 23 has a substantially arcuate edge 33a of the second notch 33, two substantially straight edges 33b of the second notch 33, and a substantially arc-like shape different from the edges 33a and 33b. And an edge 23a.

  Two recesses 35 that face each other are formed on the edge 23 a of the holding member 23. The recess 35 has a substantially semicircular or substantially U-shaped cutout. The two recesses 35 are formed at positions symmetrical to the sensor 5 in the holding member 23. Therefore, the distance between one recess 35 and the sensor 5 is substantially equal to the distance between the other recess 35 and the sensor 5.

  The second wall 72 of the holding member 23 has a substantially flat plate shape and faces the edge 31 b of the first notch 31 of the substrate 21. The second wall 72 extends from the edge 33b of the second notch 33 along a direction D that intersects the mounting surface 28 (surface) of the substrate 21 where the power supply circuit 22 is formed. In the present embodiment, the direction D is a direction substantially orthogonal to the mounting surface 28.

  The housing 25 and the attachment portion 27 will be described with reference to FIGS. As shown in FIG. 2, the housing 25 accommodates the light source unit 3, the substrate 21, the holding member 23, and the terminal unit 29 and has a substantially bottomed cylindrical shape. The housing 25 is made of, for example, aluminum. A mounting portion 27 is formed in the housing 25. The attachment portion 27 and the substrate 21 are arranged such that a step ST is formed between the attachment portion 27 and the substrate 21. A terminal unit 29 is attached to the attachment portion 27. The front end surface 29 b of the terminal unit 29 is substantially flush with the substrate 21.

  FIG. 4 is a plan view showing the back side of the luminaire 1. As shown in FIG. 4, the attachment portion 27 is formed as a part of the housing 25 and has a first attachment surface 32 a. The first mounting surface 32a includes a first surface 27a.

  The first surface 27a faces the first cutout area A1 (cutout area) defined by the first cutout portion 31 of the substrate 21. A part of the terminal unit 29 is disposed on the first surface 27a. The first attachment surface 32a faces the first cutout area A1 and also faces the second cutout area A2 defined by the second cutout portion 33 of the holding member 23. A terminal unit 29 is attached to the first attachment surface 32a. In order to facilitate understanding, the first surface 27a, the first mounting surface 32a, the first cutout region A1, and the second cutout region A2 are indicated by a one-dot chain line.

  The housing 25 will be described in detail with reference to FIGS. FIG. 5 is a perspective view showing the inside of the housing 25. As shown in FIGS. 4 and 5, the housing 25 includes a first wall portion 71 and two bosses 25 a.

  The first wall portion 71 is curved and has a substantially arc shape in plan view. The first wall portion 71 faces the edge 31 a of the first cutout portion 31 of the substrate 21. The first wall portion 71 extends along the direction D from a curved edge (that is, a curved edge of the edges of the first surface 27a) among the edges of the first mounting surface 32a of the mounting portion 27. ing.

  The two bosses 25a face each other across the center C of the housing 25 (that is, the center C of the lighting fixture 1). The two bosses 25a are formed corresponding to the two recesses 35. The holding member 23 is accommodated in the housing 25 such that the concave portion 35 faces the boss 25a. The boss 25a has a substantially cylindrical shape and has a thread groove. The luminaire 1 is attached to the building by screwing the bolt to the boss 25a via the building.

  FIG. 6 is a perspective view showing the luminaire 1 when the cover 7 is removed. In FIG. 6, the exterior member 11 is omitted for simplification of the drawing. As shown in FIGS. 5 and 6, a first opening 51 is formed in the housing 25. The first opening 51 is formed on the opposite side of the mounting portion 27 with respect to the first wall portion 71 in the housing 25. The panel 9 covers the first opening 51 from the outer surface 26 b side of the housing 25. The sensor 5 is exposed from the second opening 52 through the first opening 51. The panel 9 is substantially D-shaped and includes a contact portion 61 that extends substantially linearly. In the present embodiment, the contact portion 61 is a step portion and has a step surface 61a. A step is formed between the step surface 61 a and the main surface 9 b of the panel 9. The cover 7 is attached to the housing 25 so as to cover the light source unit 3 and to contact the contact portion 61 of the panel 9. Specifically, the cover 7 is substantially D-shaped and has a linear portion 7a. The cover 7 is attached to the housing 25 so that the linear portion 7 a contacts the step surface 61 a of the contact portion 61. Note that a substantially arc-shaped portion of the panel 9 is fixed to the housing 25 with screws.

  The light source unit 3 is attached to the outer surface 26 b of the housing 25. Specifically, the light source unit 3 is attached to the attachment unit 27. The attachment portion 27 has a second attachment surface 32b that faces the first attachment surface 32a. The light source unit 3 is attached to the second attachment surface 32b. Specifically, the second mounting surface 32b includes a second surface 27b that faces the first surface 27a. The light source unit 3 is attached to the second surface 27b. In order to facilitate understanding, the second surface 27b and the second mounting surface 32b are indicated by a one-dot chain line.

  As described above with reference to FIGS. 2 to 4, according to the present embodiment, the first cutout portion 31 is provided in the substrate 21. And the terminal unit 29 is attached to the 1st attachment surface 32a which opposes 1st notch area | region A1. Therefore, it is possible to suppress the terminal unit 29 from protruding from the substrate 21 as compared with the case where the terminal unit is mounted on the substrate. As a result, the lighting fixture 1 can be thinned. The thinning of the luminaire 1 is to reduce the thickness along the direction substantially orthogonal to the light source unit 3.

  For example, according to the present embodiment, the substrate 21 can be disposed so as to be within the thickness t of the terminal unit 29. Therefore, it is possible to reduce the thickness of the lighting fixture 1 as compared with the case where the terminal unit is mounted on the substrate. That is, when the terminal unit is mounted on the substrate, the total thickness of the terminal unit and the substrate is required as the thickness for housing the terminal unit and the substrate in the lighting fixture. On the other hand, in this embodiment, only the thickness t of the terminal unit 29 is sufficient as the thickness for housing the terminal unit 29 and the substrate 21 in the lighting fixture 1. Therefore, the lighting fixture 1 can be thinned.

  In addition, according to the present embodiment, by providing the first cutout portion 31 in the substrate 21, when connecting the wiring to the terminal unit 29, it is possible to secure a space for the operator's finger to enter, so that the connection work is performed. It becomes easy.

  Furthermore, according to the present embodiment, the terminal unit 29 is housed inside the housing 25. Therefore, compared with the case where the terminal unit protrudes from the housing of the luminaire, the attaching operation of the luminaire 1 is easy. For example, when attaching the lighting fixture 1 to a ceiling wall (for example, ceiling board), the operation | work which opens the hole for inserting the terminal unit 29 in a ceiling wall becomes unnecessary, and an attachment operation | work is easy. For example, when attaching the lighting fixture 1 to a top wall, it can suppress that dust like powder enters the connection hole formed in the terminal unit 29. Therefore, it is not necessary to cover the connection hole with a cover such as a tape, and the mounting work is easy. For example, when the heat insulating material is applied to the back of the ceiling using a blowing method, it is possible to suppress the powdered heat insulating material from entering the connection hole of the terminal unit 29. The blowing method is a method of laminating a powdery heat insulating material such as glass wool in the ceiling space using air.

  Furthermore, according to the present embodiment, the holding member 23 is provided with the second notch 33. And the terminal unit 29 is attached to the 1st attachment surface 32a facing 2nd notch area | region A2. Therefore, it is possible to suppress the terminal unit 29 from protruding from the substrate 21 as compared with the case where the terminal unit is mounted on the substrate. As a result, the lighting fixture 1 can be thinned. In addition, by providing the second notch 33 in the holding member 23, when connecting the wiring to the terminal unit 29, it is possible to secure a space for the operator's finger to enter, so that the connection work is facilitated.

  Furthermore, according to the present embodiment, the step ST is formed between the first mounting surface 32 a and the substrate 21. Accordingly, it is possible to further suppress the terminal unit 29 from protruding from the substrate 21. As a result, the lighting fixture 1 can be further reduced in thickness.

  In addition, as described with reference to FIG. 1, according to the present embodiment, the panel 9 is a separate member from the cover 7 and shields it from light. Therefore, the light diffused by the cover 7 is blocked by the panel 9 and the sensor 5 can be prevented from detecting the light diffused by the cover 7. As a result, chattering of the sensor 5 can be suppressed.

  Furthermore, as described with reference to FIG. 3, according to the present embodiment, the sensor 5 is mounted on the substrate 21. Therefore, the power supply circuit 22 and the sensor 5 formed on the substrate 21 become one unit. As a result, the number of assembling steps of the lighting fixture 1 can be reduced as compared with the case where the substrate on which the power supply circuit is formed and the sensor are separately arranged.

  Furthermore, as described with reference to FIGS. 3 to 5, according to the present embodiment, the holding member 23 is formed with the recess 35. Therefore, the boss 25a of the housing 25 can be brought closer to the center C of the lighting fixture 1 as compared with the case where no recess is formed. As a result, the diameter of the lighting fixture 1 can be reduced and the size of the lighting fixture 1 can be reduced. The reduction in the diameter of the luminaire 1 is to reduce the width along the direction substantially parallel to the light source unit 3.

  Further, according to the present embodiment, the two concave portions 35 are formed at positions symmetrical with respect to the sensor 5. And the holding member 23 is accommodated in the housing | casing 25 so that the two recessed parts 35 may oppose the two boss | hubs 25a. Therefore, when the lighting apparatus 1 is attached to a ceiling wall such as a ceiling, the position of the sensor 5 is uniquely determined by determining the positions of the two recesses 35, that is, the positions of the two bosses 25a. As a result, the luminaire 1 can be easily installed so that the sensor 5 is disposed at a desired position.

  Further, according to the present embodiment, the first wall portion 71 of the housing 25 is opposed to a part of the edge 31 a among the edges of the first cutout portion 31 of the substrate 21, and the second wall portion of the holding member 23. 72 faces the other part of the edge 31 b of the edge of the first cutout 31. Therefore, the substrate 21 on which the power supply circuit 22 and the sensor 5 are mounted can be easily isolated from the terminal unit 29 by the first wall portion 71 and the two second wall portions 72. That is, the first wall portion 71 and the two second wall portions 72 constitute a substantially U-shaped partition in plan view.

  Furthermore, according to the present embodiment, since the first wall portion 71 is curved, the edge 31 a of the substrate 21 can be formed along the curved shape of the first wall portion 71. Therefore, the area of the mounting surface 28 of the substrate 21 can be increased compared to the case where the first wall portion is formed in a flat plate shape. In other words, the area of the mounting surface 28 required for forming the power supply circuit 22 can be secured while realizing the downsizing of the lighting fixture 1. Moreover, when connecting a wiring with respect to the terminal unit 29, realizing space reduction of the lighting fixture 1, compared with the case where a 1st wall part is formed in flat form, the space where an operator's finger | toe enters is contained. Since it can be widened, the connection work becomes easy.

  Furthermore, according to the present embodiment, the first wall portion 71 is formed in the housing 25. Therefore, the housing 25 can be molded together with the first wall 71 by die casting (for example, aluminum die casting). In particular, since the first wall portion 71 is curved, it is more suitable for molding by die casting than molding by sheet metal pressing. On the other hand, the second wall portion 72 is formed in the holding member 23. Therefore, the holding member 23 can be molded together with the second wall portion 72 by sheet metal pressing. As a result, compared with the case where the first wall portion and the second wall portion are formed in the housing, it is possible to reduce the portion of the sheet metal that is discarded during the sheet metal pressing. Further, by forming the second wall portion 72 on the holding member 23, the material of the housing 25 (for example, aluminum) is made as compared with the case where the first wall portion and the second wall portion are formed on the housing. Can be reduced. Generally, the material (for example, aluminum) of the housing 25 formed by die casting is more expensive than the material (for example, sheet metal) of the holding member 23 formed by sheet metal pressing. Therefore, the cost of the lighting fixture 1 can be reduced by reducing the material of the housing 25.

  In addition, as described with reference to FIGS. 5 and 6, according to the present embodiment, the first opening 51 is formed in the housing 25. Therefore, the sensor 5 accommodated in the housing 25 can be easily exposed. When the lighting fixture 1 does not include the sensor 5 and the panel 9, the heat of the light source unit 3 is discharged from the first opening 51. Therefore, it is possible to prevent heat from being trapped in the space between the outer surface 26 b of the housing 25 to which the light source unit 3 is attached and the cover 7.

  Furthermore, as described with reference to FIG. 6, according to the present embodiment, the cover 7 is attached to the housing 25 so as to come into contact with the contact portion 61 of the panel 9. Accordingly, the contact portion 61 of the panel 9 is pressed by the cover 7. As a result, the number of screws for attaching the panel 9 to the housing 25 can be reduced. By reducing the number of screws, the screw tightening work in the assembly work of the luminaire 1 can be reduced, the number of assembly steps can be reduced, and the number of parts can be reduced, so that the luminaire 1 can be reduced in weight. Further, by reducing the number of screws, the number of bosses for screwing screws can be reduced. Since the boss is formed in the housing 25, the storage space of the housing 25 is increased by reducing the number of bosses. As a result, the area of the mounting surface 28 of the substrate 21 can be increased. In other words, the area of the mounting surface 28 required for forming the power supply circuit 22 can be secured while realizing the downsizing of the lighting fixture 1.

  Moreover, according to this embodiment, the light source part 3 is attached to the 2nd attachment surface 32b facing the 1st attachment surface 32a. The first attachment surface 32a faces the first cutout area A1. Accordingly, the light source unit 3 and the power supply circuit 22 of the substrate 21 are arranged at different positions in a direction substantially parallel to the substrate 21. As a result, it is possible to suppress the heat of the light source unit 3 from being transmitted to the power supply circuit 22 as compared with the case where the light source and the power supply circuit are disposed along a direction substantially perpendicular to the substrate.

  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 embodiment, and can be implemented in various modes without departing from the gist thereof (for example, (1) to (5) shown below). In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine the component covering 3 different embodiment suitably. In order to facilitate understanding, the drawings schematically show each component as a main component, and the thickness, length, number, interval, etc. of each component shown in the drawings are actual for convenience of drawing. May be different. In addition, the material, shape, dimensions, and the like of each component shown in the above embodiment are merely examples, and are not particularly limited, and various changes can be made without departing from the effects of the present invention. is there.

  (1) As described with reference to FIG. 2, the tip end surface 29 b of the terminal unit 29 and the substrate 21 are substantially flush, but are not limited to being substantially flush. For example, the height of the front end surface 29 b of the terminal unit 29 is preferably substantially the same as the height of the substrate 21 or lower than the height of the substrate 21. In this example, the lighting fixture 1 can be further reduced in thickness. The height indicates the height with respect to the attachment portion 27. For example, the substrate 21 may be disposed so as to be within the thickness t of the terminal unit 29. Also in this example, the lighting fixture 1 can be thinned. In this case, the height of the front end surface 29 b of the terminal unit 29 may be higher than the height of the substrate 21.

  (2) As described with reference to FIG. 3, the holding member 23 has two recesses 35, but one recess 35 may be formed, or three or more recesses 35 are formed. It may be. Further, any shape can be adopted as the shape of the recess 35.

  (3) As described with reference to FIG. 4, a part of the terminal unit 29 is disposed on the first surface 27a, but the entire terminal unit 29 may be disposed on the first surface 27a.

  (4) As described with reference to FIG. 6, the entire light source unit 3 is disposed on the second surface 27 b, but a part of the light source unit 3 may be disposed on the second surface 27 b.

  (5) The substrate 21 may be attached to the housing 25 without the holding member 23. Each shape of the 1st notch part 31 and the 2nd notch part 33 is not limited to substantially U shape, Arbitrary shapes are employable. The shape of the first notch 31 may be different from the shape of the second notch 33. The first wall portion 71 may not be curved. The first wall portion 71 and the second wall portion 72 may be formed on the holding member 23 or may be formed on the housing 25. The shape of the lighting fixture 1 is not limited to a substantially disc shape, and may have an arbitrary shape. Each shape of the board | substrate 21 and the holding member 23 is not limited to substantially horseshoe shape, You may have arbitrary shapes. The first wall 71 and the second wall 72 may not be formed. The recess 35 may not be formed. The panel 9 may not have the abutting portion 61 and may not be shielded from light. The sensor 5 and the panel 9 may not be provided. The first opening 51 may not be formed.

The present specification further discloses the following supplementary notes.
(Appendix 1)
The lighting fixture 1 disclosed in the present application includes a light source unit 3 including a light emitting element 3 a, a substrate 21 on which a circuit 22 connected to the light source unit 3 is formed, and a holding member 23 that holds the substrate 21. An edge E2 of the holding member 23 is positioned outside the substrate 21 with respect to an edge E1 of the substrate 21. A recess 35 is formed in the edge E2 of the holding member 23.

  According to this configuration, the boss 25a of the housing 25 can be brought closer to the center C of the lighting fixture 1 as compared with the case where no recess is formed. As a result, the diameter of the lighting fixture 1 can be reduced and the size of the lighting fixture 1 can be reduced.

(Appendix 2)
The lighting fixture 1 disclosed in the present application includes a light source unit 3 including a light emitting element 3a, a substrate 21 on which a circuit 22 connected to the light source unit 3 is formed, and a housing that houses the light source unit 3 and the substrate 21. 25. The casing 25 includes a first wall portion 71 that is curved. The first wall 71 faces the edge 31a of the substrate 21 and extends along a direction D intersecting the surface 28 of the substrate 21 where the circuit 22 is formed.

  According to this configuration, the edge 31 a of the substrate 21 can be formed along the curved shape of the first wall portion 71. Therefore, compared with the case where the first wall portion is formed in a flat plate shape, the area of the surface 28 on which the circuit 22 is formed in the substrate 21 can be increased. In other words, the area of the surface 28 required for forming the circuit 22 can be ensured while realizing miniaturization of the lighting fixture 1. Moreover, when connecting a wiring with respect to the terminal unit 29, realizing space reduction of the lighting fixture 1, compared with the case where a 1st wall part is formed in flat form, the space where an operator's finger | toe enters is contained. Since it can be widened, the connection work becomes easy.

(Appendix 3)
The lighting fixture 1 disclosed in the present application includes a housing 25 having a first opening 51 formed therein, a light source unit 3 including a light emitting element 3a attached to the outer surface 26b of the housing 25, and the outer surface of the housing 25. 26b, the first opening 51 is covered with the panel 9 in which the second opening 52 is formed, and the housing 25 is accommodated in the second opening 52 through the first opening 51. And a cover 7 covering the light source unit 3. The panel 9 includes an abutting portion 61 with which the cover 7 abuts.

  According to this configuration, the contact portion 61 of the panel 9 is pressed by the cover 7. As a result, the number of screws for attaching the panel 9 to the housing 25 can be reduced. By reducing the number of screws, the screw tightening work in the assembly work of the luminaire 1 can be reduced, the number of assembly steps can be reduced, and the number of parts can be reduced, so that the luminaire 1 can be reduced in weight. Further, by reducing the number of screws, the number of bosses for screwing screws can be reduced. Since the boss is formed in the housing 25, the storage space of the housing 25 is increased by reducing the number of bosses. As a result, the area of the mounting surface 28 of the substrate 21 can be increased. In other words, the area of the mounting surface 28 required for forming the power supply circuit 22 can be secured while realizing the downsizing of the lighting fixture 1.

  The present invention provides a lighting apparatus and has industrial applicability.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 3 Light source part 3a LED (light emitting element)
5 Sensor 7 Cover 9 Panel 21 Board 22 Power supply circuit (circuit)
23 Holding member 25 Housing 27 Mounting portion 28 Mounting surface (surface)
29 terminal unit 29a terminal 31 first cutout portion 32a first attachment surface 32b second attachment surface 33 second cutout portion 35 recess 51 first opening portion 52 second opening portion 61 contact portion 71 first wall portion 72 second wall Part A1 First notch area (notch area)
A2 Second notch area

Claims (10)

A substrate on which a circuit is formed;
A terminal unit including a terminal electrically connected to the circuit;
An attachment portion to which the terminal unit is attached,
The substrate has a first cutout;
The terminal unit is attached to the first attachment surface of the attachment portion,
The first mounting surface is a lighting fixture facing a notch region defined by the first notch. A holding member for holding the substrate;
The lighting device according to claim 1, wherein the holding member has a second cutout portion formed along the first cutout portion. The edge of the holding member is located outside the substrate than the edge of the substrate,
The edge of the holding member includes an edge of the second notch,
The lighting fixture according to claim 2, wherein a recess is formed in an edge different from the edge of the second cutout portion of the edge of the holding member. A light source part including a light emitting element and attached to the attachment part;
The light source part is attached to the second attachment surface of the attachment part,
The lighting device according to any one of claims 1 to 3, wherein the second mounting surface is opposed to the first mounting surface.   The lighting fixture of any one of Claims 1-4 further provided with the sensor mounted in the said board | substrate. The mounting portion is formed, and further includes a housing for accommodating the substrate,
The lighting fixture according to any one of claims 1 to 5, wherein a first opening is formed in the housing. The mounting portion is formed, and further includes a housing for accommodating the substrate,
The housing includes a curved first wall,
The said 1st wall part is facing the edge of the said 1st notch part, and is extended along the direction which cross | intersects the surface in which the said circuit is formed among the said board | substrates. The lighting fixture according to item 1. The first wall portion is opposed to a part of the edges of the first notch,
A holding member for holding the substrate;
The holding member includes a flat plate-like second wall portion,
The second wall portion is opposed to another part of the edge of the first cutout portion and extends along the direction intersecting the surface on which the circuit is formed. The lighting fixture according to 7. A housing in which the first opening and the mounting portion are formed and which accommodates the substrate;
A light source unit including a light emitting element and attached to the outer surface of the housing;
A panel that covers the first opening from the outer surface side of the housing and in which a second opening is formed;
A sensor housed in the housing and exposed from the second opening through the first opening;
A cover that covers the light source unit;
The lighting device according to claim 1, wherein the panel includes an abutting portion with which the cover abuts.   The lighting fixture according to claim 9, wherein a part or all of the panel is shielded from light.

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