JP2019160533A - Light source unit and lighting device - Google Patents

Abstract

To provide a light source unit which enables a worker to easily grip a shade with a hand when a light source unit is removed from a body unit, and to provide a lighting device.SOLUTION: A lighting device 11 includes: a light source unit 41 having a light source part 51; and a body unit 21 which holds the light source unit 41. The light source unit 41 has an elongated shade 81 which covers the light source part 51. The shade 81 has a facing surface part 82 which is disposed facing the light source part 51 and covers the radiation surface side of the light source part 51; and a pair of side surface parts 83 which extends from both ends of the facing surface part 82 as seen in a shorter side direction and covers a side surface of the light source part 51. The side surface part 83 has: a plane part 84 disposed over a longitudinal direction of the shade 81; and a pair of groove parts 85 disposed between one end of the plane part 84 as seen in the shorter side direction and both ends of the facing surface part 82 as seen in the shorter side direction.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a light source unit and a lighting fixture.

  In recent years, various lighting fixtures have been proposed that use LEDs (Light Emitting Diodes) having advantages such as low power consumption and long life as a light source.

  For example, Patent Literature 1 discloses a lighting fixture having a translucent cover (sade) attached to an attachment portion so as to cover an LED module in a light source unit. Specifically, the translucent cover disclosed in Patent Document 1 is formed between one edge and the other edge, and has a cover body having an arcuate cross section and one edge of the cover body as a base end. A first cover side wall portion that rises as a portion, and a second cover side wall portion that stands up with the other edge of the cover body as a base end portion. That is, the translucent cover has a first cover side wall portion and a second cover side wall portion as flat portions on the side surface. The said 1st cover side wall part and the 2nd cover side wall part are comprised so that it may orthogonally cross with respect to the arrangement | positioning surface of an LED module.

JP 2017-76569 A

  However, in the lighting fixture disclosed in Patent Document 1, since the side surface of the translucent cover is flat, when the operator removes the light source unit from the instrument body (main unit), the operator installs the translucent cover. It was difficult to grasp by hand (there was no part to be hooked with a finger), and the attaching / detaching work of the light source unit was complicated.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a light source unit and a lighting fixture that make it easier for an operator to grasp a shade by hand when removing the light source unit from the main unit. To do.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the lighting fixture disclosed in this application is
A light source unit having a light source;
A main body unit for holding the light source unit, and a lighting fixture comprising:
The light source unit has a long shade covering the light source unit,
Said shade is
An opposing surface portion disposed opposite to the light source portion and covering an irradiation surface side of the light source portion;
A pair of side surfaces extending from both ends of the opposing surface portion in the short direction and covering the side surfaces of the light source unit;
The side surface portion includes a pair of groove portions disposed between a planar portion disposed in the longitudinal direction of the shade, one end in the short direction of the planar portion, and both ends in the short direction of the facing surface portion. I have it.

In the lighting fixture disclosed in the present application,
The pair of side surface portions are preferably parallel to each other.

The light source unit disclosed in the present application is
A light source unit having a light source unit,
The light source unit has a long shade covering the light source unit,
Said shade is
An opposing surface portion disposed opposite to the light source portion and covering an irradiation surface side of the light source portion;
A pair of side surfaces extending from both ends of the opposing surface portion in the short direction and covering the side surfaces of the light source unit;
The side surface portion includes a pair of groove portions disposed between a planar portion disposed in the longitudinal direction of the shade, one end in the short direction of the planar portion, and both ends in the short direction of the facing surface portion. I have it.

  According to the present invention, by providing the groove portion on the side surface portion, when removing the light source unit from the main body unit, an operator can easily grasp it by hand. Furthermore, compared with the structure which does not provide a groove part in a side part, the height dimension of a plane part is felt visually small, and a shade and a light source unit look thin.

The perspective view which looked at the lighting fixture which concerns on embodiment of this invention from diagonally downward. The top view which similarly looked at the lighting fixture from the lower part. The perspective view which shows a main body unit. The perspective view which shows a light source unit. Sectional view on the AA line which shows the lighting fixture (state which isolate | separated the main body unit and the light source unit) shown in FIG. BB sectional drawing in FIG. It is a figure which shows a mounting bracket, (a) is a perspective view, (b) is a top view, (c) is a side view. The side view which shows the modification of an attachment metal fitting. It is a figure which shows an attachment spring, (a) (b) is a perspective view, (c) is a side view. Sectional drawing which shows the light source unit arrange | positioned under the main body unit. Sectional drawing which shows the state which hooked the hook part of the light source unit on the hook part of the main body unit. Sectional drawing which shows the state which hold | maintained the light source unit substantially horizontal. The figure which shows the state which attached the light source unit to the main body unit. The perspective view which shows the modification of an attachment spring. The perspective part which shows the modification of a recessed part. The expanded sectional view which expands and shows the groove part of the shade in FIG. The exploded perspective view which decomposes | disassembles and shows a light source unit. The partial expansion perspective view which expands and shows a part of light source part in FIG. (A) is a top view which shows the state which hold | maintained the wiring with the holding | maintenance part of an attachment spring, (b) is CC sectional view taken on the line in (a). FIG. 19 is a view taken in the direction of arrow Y in FIG. The perspective view which shows an end cap. Sectional drawing which shows the state which has arrange | positioned wiring to the guide part of an end cap. The perspective view which shows the modification of an attachment metal fitting. The perspective view which shows the modification of an attachment spring.

The lighting fixture 11 which concerns on embodiment of this invention is demonstrated using FIGS. The luminaire 11 according to the present embodiment is a luminaire using the LED 53 as a light source. The luminaire 11 is a base light that is directly attached to a mounting surface (a ceiling surface C in the present embodiment) such as a ceiling surface or a wall surface. As shown in FIG. 2, the external shape of the lighting fixture 11 is an elongated shape having a large ratio of the length in the longitudinal direction to the length in the short direction in plan view. In the following description, the side of the luminaire 11 that irradiates light is the irradiating surface side of the luminaire 11, and the side of the luminaire 11 that faces the mounting surface such as a ceiling surface or a wall surface is the mounting surface side (irradiation of the luminaire 11). This will be described as the opposite side of the surface side. In the lighting fixture 11, the vertical direction in FIGS. 1, 3 to 6, 10 to 13, 16, 20, and 22 is described as the “vertical direction” of the lighting fixture 11. Moreover, in description of this embodiment, let the state which looked at the lighting fixture 11 grade | etc., From the downward direction be planar view. A state in which the luminaire 11 and the like are viewed from a direction orthogonal to the vertical direction is referred to as a side view. A state in which the cross-sectional shape of the lighting fixture 11 or the like is viewed is referred to as a cross-sectional view.
The shape of the luminaire 11 is not limited to an elongated shape as shown in the present embodiment, and the shape in plan view may be a circular shape or a square shape.
Moreover, although the lighting fixture 11 which concerns on this embodiment is a ceiling direct attachment type lighting fixture attached directly to the ceiling surface C, it does not specifically limit. For example, an embedded lighting fixture that is embedded in a ceiling surface or the like may be used.

  The lighting fixture 11 includes a main body unit 21 that is a fixture main body of the lighting fixture 11 and a light source unit 41.

  The main unit 21 has an elongated rectangular shape in a plan view and a substantially trapezoidal shape in a sectional view. As shown in FIG. 3, the main unit 21 has a concave portion 22 that extends in a groove shape along the longitudinal direction at the irradiation surface side (lower side) at the center in the short direction of the main unit 21. The concave portion 22 has a substantially U-shaped cross section, and includes an upper surface portion (bottom surface portion) 22a and a pair of side wall portions 22b that extend downward from both ends in the short direction of the upper surface portion 22a and face each other. The upper surface portion 22a is a portion that is attached in the vicinity of the ceiling surface C with an attachment member (for example, a bolt or a nut). The main unit 21 is a member that holds the light source unit 41 on the irradiation surface side in a state where the light source unit 41 is attached to the recess 22.

The main unit 21 includes a concave portion 22, an inclined surface portion 25 extending obliquely upward from a lower end portion of the side wall portion 22b of the concave portion 22, a side wall portion 24 extending upward from an upper end portion of the inclined surface portion 25, and a main body. The unit 21 includes an end member 26, a terminal block 62, and a mounting bracket 31 that are disposed at both ends in the longitudinal direction of the unit 21 and close both ends of the concave portion 22 and the inclined surface portion 25 in the longitudinal direction. The main unit 21 has a bottomed box-shaped space having an elongated rectangular opening formed by the recess 22 and the end member 26.
In addition, in this embodiment, although it is the structure which has the one recessed part 22 in the irradiation surface side of the main body unit 21, it does not specifically limit. For example, it is good also as a structure which has a some recessed part in the irradiation surface side of a main body unit, in order to attach the some light source unit 41. FIG.
Moreover, the upper surface part 22a, the side wall part 22b, the inclined surface part 25, and the side wall part 24 are integrally molded. Further, the member formed integrally with the upper surface portion 22a, the side wall portion 22b, the inclined surface portion 25, and the side wall portion 24, and the end member 26 are configured as separate members.
Moreover, the upper surface part 22a, the side wall part 22b, the inclined surface part 25, the side wall part 24, and the end member 26 may be integrally formed.

  The inclined surface portion 25 is a portion adjacent to the light source unit 41 when the light source unit 41 is attached to the main body unit 21, and the irradiation surface side surface of the inclined surface portion 25 transmits light emitted from the light source unit 41 downward or laterally. It becomes a light reflecting surface that reflects toward the surface.

Examples of the material constituting the main unit 21 include metal materials such as aluminum, aluminum alloy, iron, and iron alloy having high thermal conductivity. The main unit 21 is formed using a metal material such as an iron alloy in consideration of durability capable of holding the light source unit 41 and thermal conductivity for dissipating heat generated by the light source unit 41. The main unit 21 is formed, for example, by bending and processing a sheet metal (in this embodiment, an iron alloy sheet metal). The main body unit 21 is not limited to a metal such as an iron alloy, or other materials such as a resin, or a combination thereof, as long as the material can secure the durability and necessary heat dissipation that can hold the light source unit 41. Can be formed.
The end member 26 may be formed of a resin material, and the other members may be formed of a metal material. Thereby, the weight reduction and cost reduction of a lighting fixture can be achieved.

  The recess 22 is a portion that houses the upper end side of the light source unit 41 (for example, the power supply device 61 for turning on the LED 53 of the light source unit 51). When the upper end side of the light source unit 41 is attached to the recess 22, the recess 22 has a height (depth) and a width for accommodating the power supply device 61, the terminal block 62, wiring, and the like in the recess 22. Yes. The recess 22 is provided with mounting brackets 31 for mounting mounting springs 71 of the light source unit 41 described later at a plurality of locations (two locations in the present embodiment) in the longitudinal direction of the recess 22 (FIG. 5). reference). A through hole 27 is formed in the upper surface portion 22a of the concave portion 22 in the vicinity of the center in the longitudinal direction of the light source unit 41, and a power line (not shown) extending from an external power source disposed inside the ceiling surface C. Is inserted.

  The terminal block 62 is attached to the irradiation surface side of the upper surface portion 22a. The terminal block 62 is disposed between the mounting bracket 31 and the through hole 27 in the recess 22. A power line is connected to the terminal block 62.

The mounting bracket 31 is disposed in the recess 22 of the main unit 21. The mounting bracket 31 can mount a mounting spring 71 included in the light source unit 41. The mounting bracket 31 is a metal member having a substantially rectangular shape (substantially U shape) in cross-section (see FIG. 7C and the like). The mounting bracket 31 is attached to the irradiation surface side of the upper surface portion 22 a of the recess 22. The mounting bracket 31 is opposed to the through hole 27 provided in the center in the longitudinal direction of the upper surface portion 22a of the main unit 21 and is disposed at a position spaced apart from the through hole 27 at equal intervals.
As described above, in the present embodiment, the pair of mounting brackets 31 face each other around the through hole 27 and are disposed at positions spaced from the through hole 27 at equal intervals. 31 can be disposed at an arbitrary position in the longitudinal direction of the upper surface portion 22 a of the main unit 21.

  As shown in FIG. 7, the mounting bracket 31 includes an extending portion 32, a second engaged portion 33 disposed so as to face the extending portion 32, and a connecting portion 34. The connecting portion 34 has a substantially plate shape, and connects the extending portion 32 and the second engaged portion 33. A plurality of (two in this embodiment) through holes 35 are formed in the connecting portion 34. The mounting bracket 31 is attached to the recess 22 by screwing a screw toward the upper surface portion 22 a of the recess 22 through the through hole 35.

  The extending portion 32 is a portion that extends from one end of the connecting portion 34 to the outside in the extending direction of the connecting portion 34, and has a hooking portion 36 and a first engaged portion 37. The hook portion 36 is a portion that hooks the hook portion 72 of the attachment spring 71. The first engaged portion 37 is a portion with which the first engaging portion 72 c of the attachment spring 71 is engaged.

  The hook portion 36 has a substantially plate shape and is substantially U-shaped in a side view, and extends substantially vertically from one end of the connecting portion 34. The first engaged portion 37 has a substantially plate shape, and is formed by being cut and raised outside the hooking portion 36 in the extending direction of the connecting portion 34. That is, the first engaged portion 37 is formed so as to protrude outward from one end in the extending direction of the connecting portion 34 from the upper edge of the substantially U-shaped through hole 38 formed in the hook portion 36. Yes. The first engaged portion 37 has an overhang portion 37a, a base portion 37b, and a bent portion 37c. The overhanging portion 37 a has a substantially plate shape and extends from one end of the connecting portion 34 to the outside of the hooking portion 36. The base portion 37b has a substantially plate shape and extends substantially vertically from one end of the overhang portion 37a. The bent portion 37c has a bent plate shape, extends from the distal end portion of the base portion 37b, and protrudes toward the second engaged portion 33 that faces the first engaged portion 37. It is a shaped part. The bent portion 37c has a substantially plate-like inclined surface 37d whose tip end portion extends obliquely downward toward the second engaged portion 33 side. The first engaging portion 72c of the attachment spring 71 is engaged with the bent portion 37c.

The second engaged portion 33 has a base portion 33a and a bent portion 33b. The base portion 33a is substantially plate-shaped and extends substantially vertically from the other end of the connecting portion 34. The bent portion 33b has a bent plate shape, extends from the distal end portion of the base portion 33a, and protrudes toward the extended portion 32 facing the second engaged portion 33. It is. The bent portion 33b has a substantially plate-like inclined surface 33c whose tip end portion extends obliquely downward toward the extending portion 32 side. The second engaging portion 73 of the attachment spring 71 is engaged with the bent portion 33b.
In addition, the extension part 32 and the 2nd to-be-engaged part 33 are connected by the connection part 34 only in the upper edge side, and the lower edge side is spaced apart. As a result, the distal end side of the second engaged portion 33 is a free end and only the proximal end side is fixed, so that the elastic deformation of the second engaged portion 33 is not hindered. In addition, the mounting spring 71 of the present embodiment is easy to manufacture because it uses less material than the structure connecting the lower edge sides, reduces costs, and is easy to process.

  FIG. 8 shows a mounting bracket 31 </ b> A as a modification of the mounting bracket 31. The mounting bracket 31 </ b> A is configured to further include an inclined extending portion 39 having an inclined surface 39 a at the tip portion on the side of the mounting bracket 31 facing the hook portion 36 of the second engaged portion 33. With this configuration, when the light source unit 41 is attached to the main body unit 21, the second engagement portion 73 of the attachment spring 71 is brought into contact with the inclined surface 39 a, so that the second engagement portion 73 is attached to the attachment fitting 31. It is possible to guide the light source unit 41 to the normal position of the main body unit 21.

  As shown in FIG. 5, the light source unit 41 includes a base member 42 that is an attachment member, a light source part (LED module substrate) 51, a power supply device 61 that is a power supply part, an attachment spring 71, a shade 81, and a pair of end caps 91. Prepare mainly.

  The base member 42 is a member that holds the light source unit (LED module substrate) 51 and the shade 81 on the irradiation surface side, and holds the power supply device 61 and the attachment spring 71 on the attachment surface side. The base member 42 is a long metal plate-like member. The base member 42 also has a heat dissipation function of absorbing heat generated by the light source unit 51 and releasing it to the air outside the base member 42. The base member 42 is formed so that the longitudinal dimension and the lateral dimension thereof are slightly smaller than those of the recess 22 described above.

  The light source attachment part 42a is a part to which the light source part (LED module substrate) 51 is attached. The light source attachment portion 42 a is a plate-like portion having a rectangular shape in plan view on the irradiation surface side (lower side) of the base member 42. Since the base member 42 also has a heat dissipation function that absorbs heat generated in the light source unit 51 and releases it to the air outside the base member 42, the light source attachment unit 42 a with which the light source unit 51 is in contact with the light source unit 51. Is formed flat so as to increase the contact area.

The light source unit 51 is a part that emits light toward the irradiation surface side of the lighting fixture 11. As shown in FIG. 6, the light source unit 51 is a module substrate. The light source unit 51 includes a plurality of LEDs 53, which are point light sources in the longitudinal direction of the substrate 54, on a long substrate 54 that is processed into a flat plate shape (horizontally long). They are arranged side by side (see FIG. 17). The plurality of LEDs 53 are disposed substantially at the center in the short direction of the substrate 54. In this embodiment, a plurality of LED elements (surface-mount type LED elements) are used as the light source. However, the present invention is not limited to this, and a COB light emitting module, an organic EL element, or the like may be used. The light source part 51 is disposed in contact with the irradiation surface side of the light source attachment part 42a and attached by an attachment member such as a screw. The light source unit 51 is electrically connected to the power supply device 61 by a wiring 63.
In addition, the light source part 51 may be attached to the light source attachment part 42a via a heat conductive sheet (not shown) or heat dissipation grease, and thereby higher heat dissipation can be obtained.

As shown in FIG. 17, on the irradiation surface side of the substrate 54, a connector 64 to which a wiring 63 is electrically connected to at least one end portion in the longitudinal direction of the substrate 54 is provided. The connector 64 is for electrically connecting the power supply device 61 via the wiring 63. By connecting the wiring 63 to the connector 64, the substrate 54 and the power supply device 61 are electrically connected. The connector 64 is disposed at a position different from the plurality of LEDs 53 in the short direction of the substrate 54. Specifically, as shown in FIG. 18, the connector 64 is provided at a position shifted from the center in the short direction (width direction) of the substrate 54.
17 and 18, the vertical direction of the light source unit 41 and the power supply device 61 is opposite to the vertical direction of the paper.

  The power supply device 61 is a device for turning on the LED 53 by supplying power to the LED 53 of the light source unit 51 via the wiring 63. The power supply device 61 includes a power supply circuit in which a plurality of electronic components are mounted on a printed wiring board processed into a rectangular shape in a box-shaped power supply case. The power supply device 61 is disposed near the center in the longitudinal direction of the base member 42 on the mounting surface side of the light source mounting portion 42a. The power supply device 61 converts an alternating current supplied from an external power source into a predetermined direct current, and supplies the converted current to the plurality of LEDs 53 mounted on the substrate 54. The power supply device 61 is electrically connected to the terminal block 62 of the main unit 21 via wiring (not shown).

  As shown in FIG. 5, the power supply device 61 is disposed at a position facing the through hole 27 of the light source mounting portion 42 a. The power supply device 61 includes an inclined surface 61a at one end of the upper surface of the power supply case. The inclined surface 61 a faces the through hole 27 when the light source unit 41 is attached to the main unit 21. By providing the power supply device 61 with the inclined surface 61 a, a large space can be secured between the through hole 27 and the power supply device 61 in a state where the light source unit 41 is attached to the main body unit 21. It is possible to prevent sudden bending of the power supply line of the external power supply, and it is possible to prevent the power supply line from being damaged or disconnected.

  When attaching the luminaire 11 to the ceiling surface C, the main body unit 21 is fixed to the ceiling surface C by pulling out the power line of the external power source from the through hole 27. The power supply device 61 is electrically connected to an external power supply by connecting the power supply line to the terminal block 62. The power supply device 61 and the light source unit 51 are electrically connected by wiring.

  The mounting spring 71 can be attached to and detached from the mounting bracket 31 of the main unit 21. The mounting spring 71 is a metal member having a substantially rectangular shape (substantially U-shaped) in cross section and having elasticity (see FIG. 9). The attachment spring 71 is, for example, a metal leaf spring. The attachment spring 71 is attached to the attachment surface side of the light source attachment portion 42a. The attachment spring 71 is opposed to the center portion in the longitudinal direction on the attachment surface side of the light source attachment portion 42a, and is disposed at a position spaced apart from the center portion at equal intervals. That is, the mounting spring 71 is disposed at a position corresponding to the mounting bracket 31 of the main unit 21.

  As shown in FIG. 9, the attachment spring 71 includes a hook portion 72, a second engagement portion 73 disposed to face the hook portion 72, and a connecting portion 74. The connecting portion 74 has a substantially plate shape, and connects the hook portion 72 and the second engaging portion 73. A plurality of (two in this embodiment) through holes 75 for screwing are formed in the connecting portion 74. The attachment spring 71 is attached to the attachment surface side of the light source unit 41 by screwing a screw from the attachment surface side of the light source attachment portion 42 a through the through hole 75.

  Further, a through hole 76 is formed in the connecting portion 74 at an arbitrary position. The through-hole 76 prevents the front end of a screw that passes through the light source mounting portion 42 a and protrudes toward the mounting surface from interfering with the connecting portion 74 when the substrate 54 is fixed to the light source mounting portion (chassis) 42 a with screws. Is for.

As shown in FIG. 9, the connection portion 74 of the attachment spring 71 has a holding portion 77 that is convex toward the upper side (attachment surface side) and has a rectangular shape in side view. The holding portion 77 holds, for example, the wiring 63 that is a secondary side wiring extending from the power supply device 61 to the substrate 54 on which the plurality of LEDs 53 are mounted along the irradiation side surface of the light source mounting portion 42a (FIG. 19A). )reference). Thus, when the wiring 63 is fixed to the base member 42, it is only necessary to hold the wiring 63 through the holding portion 77 of the mounting spring 71, so that the operation of fixing the wiring 63 can be easily performed. Moreover, since the position of the wiring 63 can be fixed along the base member 42, the wiring 63 can be prevented from being lifted from the base member 42, and the risk of disconnection due to being caught can be reduced. As an example that can reduce the risk of disconnection, disconnection caused by pinching the wiring 63 between the light source unit 41 and the main unit 21 when the light source unit 41 is attached to the main unit 21 can be prevented. Further, when the light source unit 41 is removed from the main unit 21, it is possible to prevent disconnection due to the wiring 63 being caught on the mounting bracket 31 of the main unit 21. Moreover, since the wiring 63 can be fixed simultaneously when attaching the attachment spring 71 to the base member 42, the assembly workability | operativity of the lighting fixture 11 improves.
The shape of the holding portion 77 may be any shape as long as the wiring 63 can be held, and may be a shape other than a rectangular shape in a side view. The shape of the holding portion 77 may be, for example, a semicircular shape, a semielliptical shape, a triangular shape, or the like.

  Further, the height and width of the holding portion 77 are preferably slightly larger than the thickness (outer diameter) of the wiring 63. Thereby, since the continuous pressing force is not applied to the wiring 63, damage to the coating of the wiring 63 can be prevented. That is, when the dimension of the holding portion 77 is smaller than the wiring 63, the pressing force is continuously applied to the wiring 63, and there is a risk of covering damage.

The holding portion 77 is provided at a position closer to the short-side end portion of the substrate 54 than the plurality of LEDs 53 in the short-side direction (width direction) of the substrate 54. The holding portion 77 is provided at a position shifted from the plurality of LEDs 53 in the short direction (width direction) of the substrate 54. Specifically, the plurality of LEDs 53 are arranged along the longitudinal direction of the substrate 54 at the center of the substrate 54 in the short direction (width direction). That is, the plurality of LEDs 53 are arranged along the line CC in FIG. On the other hand, the holding portion 77 is provided at a position shifted from the center (CC line) in the width direction of the mounting spring 71. Thus, the wiring 63 arranged on the mounting surface side of the base member and the plurality of LEDs 53 arranged on the substrate 54 can be prevented from overlapping each other, so that the heat generated by the LEDs 53 is routed via the base member 42. 63 can be made difficult to be transmitted. As a result, deterioration of the wiring 63 due to heat can be prevented.
The position in the width direction of the LED 53 on the substrate 54 is not limited to the center, and may be a position close to the end in the width direction. At this time, it is preferable that the eccentric directions are different from each other so that the position in the width direction of the LED 53 and the position in the width direction of the wiring 63 do not overlap on the front and back sides (irradiation surface side and attachment surface side).

As described above, the board 54 is provided with the connector 64 to which the wiring 63 is electrically connected to at least one end in the longitudinal direction of the board 54. The connector 64 is disposed at a position different from the position where the plurality of LEDs 53 are arranged in the short direction of the substrate 54. In addition, the holding portion 77 is provided at a position corresponding to the connector 64 in the short direction of the substrate 54. That is, by setting the holding portion 77 and the connector 64 to the same position in the short direction of the substrate 54, the wiring 63 disposed between the holding portion 77 and the connector 64 is substantially along the longitudinal direction of the substrate 54. It becomes straight.
Thus, by arranging the connector 64 at a position different from the plurality of LEDs 53 in the short direction of the substrate 54, the LEDs 53 can be disposed up to the end in the longitudinal direction of the substrate 54. The amount of light in the part can be secured. Further, when the connector 64 is provided at the end portion of the substrate 54 on which the LEDs 53 are arranged side by side (the end portion of the LED row), the distance between the LED 53 disposed at the end portion and the connector 64 is short. Tends to fall within the light distribution range of the LED 53 (for example, a light distribution angle of 120 degrees), the connector 64 may block the light emitted by the adjacent LED 53, and the shade 81 may be shaded. In this embodiment, the connector 64 is disposed at a position shifted in the width direction from the LED row without providing the connector 64 at the end of the LED row, so the distance between the LED 53 and the connector 64 can be increased. 64 becomes difficult to enter the light distribution range of the LED 53 (for example, a light distribution angle of 120 degrees), and the shade 81 is less likely to be shaded. Further, since the holding portion 77 is provided at a position corresponding to the connector 64, the wiring 63 is not bent and arranged at a steep angle, so that the risk of disconnection of the wiring 63 can be reduced.

  In the present embodiment, a plurality of LEDs 53 are arranged in the center in the short side direction (width direction) of the substrate 54. For example, a plurality of LEDs 53 (two rows) are arranged at arbitrary positions in the width direction of the substrate 54. (3 rows, etc.) of LEDs 53 may be arranged side by side. In this case, the center is the center in the width direction of the plurality of rows of LEDs 53.

The hook portion 72 is a portion to be hooked on the hook portion 36 of the mounting bracket 31 included in the main unit 21. The hook portion 72 is for temporarily suspending the light source unit 41 from the main unit 21 by being hooked on the hook portion 36.
Here, “temporarily suspending” refers to a state in which the light source unit 41 is temporarily suspended from the main unit 21 by wiring connection or repair inspection when the light source unit is attached to the main unit 21.

  The hook portion 72 has a bowl shape when viewed from the side, and includes a base portion 72a, a curved portion 72b, and a first engaging portion 72c. The base 72 a is substantially plate-shaped and extends substantially vertically from one end of the connecting portion 74. The curved portion 72b is a plate-like portion that extends from the distal end portion of the base portion 72a and is curved in an arc shape when viewed from the side. The first engaging portion 72c is a bent plate shape, extends from the distal end portion of the curved portion 72b, and protrudes toward the base portion 72a facing the first engaging portion 72c. Part. The first engaging portion 72c has a substantially plate-like inclined surface 72d whose tip portion extends obliquely downward toward the extension portion 32 side, and extends from the tip portion in a direction away from the base portion 72a. It has a substantially plate-like inclined surface 72e extending obliquely downward. The first engaging portion 72 c engages with the first engaged portion 37 (bending portion 37 c) of the mounting bracket 31.

  When the first engaging portion 72 c of the hook portion 72 is engaged with the first engaged portion 37, the inclined surface 72 d of the first engaging portion 72 c becomes the inclined surface 37 d of the first engaged portion 37. Abutting and the downward movement of the mounting spring 71 is restricted. Similarly, when the second engaging portion 73 is engaged with the second engaged portion 33, the inclined surface 73 c of the second engaging portion 73 contacts the inclined surface 33 c of the second engaged portion 33. Thus, the downward movement of the mounting spring 71 is restricted.

  Moreover, as shown in FIG.7 (c), let the length dimension (width dimension) between the front-end | tip part inside the inclined surface 33c and the front-end | tip part inside the inclined surface 37d in the attachment bracket 31 be L2. That is, the length dimension L <b> 2 is the dimension of the portion with the shortest distance between the second engaged portion 33 and the first engaged portion 37. As shown in FIG. 9C, the length dimension (width dimension) between the middle portion of the bending portion 73b (described later) of the mounting spring 71 and the distal end portion of the bending portion 72b is L1, and the distal end portion of the base portion 73a (described later). And L3 is a length dimension (width dimension) between the inner end of the inclined surface 72d and the inclined surface 72d. That is, the length dimension L1 is a dimension of a portion having the longest interval between the hook portion 72 and the second engagement portion 73. The length dimension L3 is the dimension of the portion with the shortest distance between the first engagement portion 72c and the second engagement portion 73. In the dimensions L1, L2, and L3, the mounting spring 71 is engaged with the mounting bracket 31 by satisfying the condition of L3 <L2 <L1.

  Further, as shown in FIG. 9 (c), the width dimension between the inclined surface 72e of the first engagement portion 72c and the distal end portion of the base portion 72a is L4, and as shown in FIG. The thickness dimension of 36 is L5. In each of the dimensions L4 and L5, the hook portion 36 can be hooked on the hook portion 72 by making the dimensional relationship L5 <L4.

  The second engaging portion 73 has a base portion 73a and a curved portion 73b. The base 73a is substantially plate-shaped and extends substantially vertically from the other end of the connecting portion 74. The curved portion 73b is a plate-like portion that is extended from the distal end portion of the base portion 73a and protrudes toward the opposite side of the hook portion 72 side facing the second engaging portion 73 in a side view. The second engaging portion 73 engages with the second engaged portion 33 of the mounting bracket 31.

The shade 81 is attached so as to cover the irradiation surface side of the light source part 51 attached to the light source attachment part 42a, and transmits and diffuses light from the light source part 51 to form an emission surface. The shade 81 is a long member having a substantially arc shape in cross section. The overall length of the shade 81 is substantially the same as the overall length of the base member 42 in the longitudinal direction. The seed 81 is formed of a translucent translucent (for example, milky white) acrylic resin material or the like.
The shape of the shade is not limited to the shape of the present embodiment. For example, the cross-sectional shape of the shade can be formed into a semicircular cross-section, a square cross-section, and a trapezoidal cross-section.

Specifically, as illustrated in FIG. 6, the shade 81 is arranged to face the light source unit 51, and from the opposite surface part 82 that covers the irradiation surface side of the light source unit 51, and from both ends in the short direction of the opposed surface part 82. A pair of side surface portions 83 extending upward and covering the side surfaces of the light source unit 51 are provided.
The facing surface portion 82 is a circular arc-shaped portion in sectional view, and is curved in a convex shape in a direction away from the light source portion 51. The side surface portion 83 is a pair of groove portions disposed between the flat surface portion 84 disposed over the longitudinal direction of the shade, and one end in the short direction of the flat surface portion 84 and both ends in the short direction of the facing surface portion 82. 85. The groove 85 is continuously formed along the longitudinal direction of the shade 81. Thus, by providing the groove portion 85 in the side surface portion 83, when removing the light source unit 41 from the main body unit 21, the operator can easily grasp it by hand.

Further, compared with the configuration in which the groove portion 85 is not provided in the side surface portion 83, the height dimension of the flat surface portion 84 is small, so that the height dimension of the side surface portion 83 is visually felt small, and the shade 81 and the light source unit 41 Looks thin. That is, for example, when the shade 81 is viewed from the direction of the arrow X in FIG. 6, one line-shaped groove 85 is formed on the side surface of the shade 81. By forming the line-shaped groove 85, it is possible to obtain a design effect that even a relatively large shade 81 and light source unit 41 can be visually felt thin and stylish.
Furthermore, since the shade 81 has the flat surface portion 84 on the side surface portion 83, the light from the light source portion 51 can be easily guided to the side, and the light can be distributed around the main body unit 21. Thereby, the ceiling surface C becomes bright and the feeling of the brightness of the whole space is obtained.

  Further, the pair of side surface parts 83 are arranged in parallel to each other. For example, when the pair of side surface portions is formed in a substantially “<” shape in cross section, the rigidity of the side surface portions is low. Therefore, when the light source unit is mounted on the main unit, if the operator pushes the lower side of the shade straight up by hand, there is a possibility that the side surface portion of the shade will be bent and damaged. is there. In order to prevent breakage of the shade of such a shape, there is a method of increasing the rigidity by increasing the thickness of the side portion of the shade. However, if the shade is thickened, the amount of emitted light is reduced and the light efficiency is lowered.

  On the other hand, the rigidity of the side surface part 83 can be increased without reducing the light efficiency by making the side surface part 83 substantially planar and arranging them parallel to each other as in this embodiment. Therefore, when the light source unit 41 is mounted on the main body unit 21, even if the operator pushes the lower surface of the shade 81 straight up by hand, the side surface portion 83 is not easily bent, so that the shade 81 can be prevented from being damaged.

  Further, the side surface portion 83 does not protrude laterally from the recess 22 (the pair of side wall portions 22b) of the main body unit 21. For example, if the shade is protruded to the side, a gap (space) is generated between the main unit and the shade, and dust tends to accumulate on the upper surface (mounting surface side) of the protruding portion, and the dust causes a shadow on the ceiling surface C. I can do it. On the other hand, in the present embodiment, since the side surface portion 83 does not protrude to the side, there is no portion where dust accumulates.

Moreover, when it is set as the structure which does not provide the plane part 84 in the side part 83, if the hollow which curved in the whole pair of side part is provided, the rigidity of a side part will become low. Therefore, when the operator pushes the lower surface of the shade upward by hand when attaching the light source unit to the main unit, the side portion of the shade may be bent and damaged. In order to prevent breakage of the shade of such a shape, there is a method of increasing the rigidity by increasing the thickness of the side portion of the shade. However, if the shade is thickened, the amount of emitted light is reduced and the light efficiency is lowered.
On the other hand, the rigidity of the side surface part 83 can be improved by making the side surface part 83 into a substantially planar shape and arranging them parallel to each other as in the present embodiment. Therefore, when the light source unit 41 is mounted on the main body unit 21, even if the operator pushes the lower surface of the shade 81 straight up by hand, the side surface portion 83 is not easily bent, so that the shade 81 can be prevented from being damaged.

  An end portion (side surface portion 83) in the short direction of the shade 81 does not protrude laterally from the concave portion 22 (side wall portion 22 b) of the main body unit 21. That is, in the present embodiment, in order to accommodate the light source unit 41 (sade 81) in the recess 22 of the main unit 21, the dimension in the short direction of the shade 81 is slightly smaller than the dimension in the short direction of the recess 22. It is configured. Therefore, the upper end of the side surface portion 83 of the shade 81 is disposed close to the side wall portion 22 b of the recess 22. The side surface portion 83 of the shade 81 does not overlap the inclined surface portion 25 of the main body unit 21 in plan view.

  Further, when the light source unit 41 is attached to the main body unit 21, the end portion in the short direction of the shade 81 is not locked to the main body unit 21, and the end cap 91 has both end portions in the longitudinal direction of the main body unit 21. The light source unit 41 can be positioned in the vertical direction with respect to the main unit 21 by being locked to the (end member 26).

  As shown in FIG. 16, the groove portion 85 includes a first surface 86 that extends obliquely downward from the lower end of the flat portion 84 toward the inner side in the short direction of the shade 81, and the shade 81 from the tip portion of the first surface 86. And a second surface 87 extending obliquely downward toward the outer side in the lateral direction. The groove 85 is a space formed by the first surface 86 and the second surface 87 facing each other. The second surface 87 is inclined with respect to the ceiling surface C in a state where the lighting fixture 11 is attached to the ceiling surface C, for example. The first surface 86 and the second surface 87 are connected at their respective end portions, and the bottom portion 88 of the groove portion 85 is formed. The bottom 88 is preferably formed so that the angle formed by the first surface 86 and the second surface 87 is an acute angle in the cross-sectional shape thereof. By configuring the groove 85 in this manner, the bending rigidity (bending strength) in the longitudinal direction of the shade 81 can be increased. Further, when the shade 81 is manufactured, for example, when the shade 81 is manufactured by extrusion molding, deformation can be suppressed even in a soft state immediately after extrusion molding.

  Further, since the groove portion 85 is provided with the second surface 87, when the operator puts the fingertip into the groove portion 85 when removing the light source unit 41 from the main body unit 21, the fingertip is pulled if the second surface 87 is present. Since it is easy to hang, the light source unit 41 can be more easily removed.

  The groove portion 85 has a tip portion 89 that is formed to protrude laterally by both ends of the second surface 87 and the opposing surface portion 82 in the short direction. The distal end portion 89 is configured not to protrude to the side of the plane portion 84. Thereby, it can be set as the neat design with few uneven | corrugated feelings in the whole shade 81. FIG. Further, by providing such a tip portion 89, the bending rigidity (bending strength) in the longitudinal direction of the shade 81 can be increased. Further, when the shade 81 is manufactured, for example, when the shade 81 is manufactured by extrusion molding, deformation can be suppressed even in a soft state immediately after extrusion molding.

  The groove portion 85 is provided so as to be located at a boundary portion between the side surface portion 83 and the opposing surface portion 82 in the longitudinal direction. That is, the groove portion 85 is provided so as to be positioned near the apex portion (near the ridge portion) where the side surface portion 83 and the opposing surface portion 82 intersect. Thereby, when the lighting fixture 11 is seen from the downward direction, the groove part 85 can be made inconspicuous.

  As shown in FIG. 17, the pair of end caps 91 are attached to both ends of the shade 81 in the longitudinal direction. The pair of end caps 91 closes the pair of openings formed at the pair of end portions in the longitudinal direction of the shade 81. The end cap 91 is formed of the same material as the shade 81. The end cap 91 may be formed of a material different from that of the shade 81. 19 to 22 show one end cap 91 of the pair of end caps 91, the configuration of the other end cap 91 is the same as the configuration of the one end cap 91. Description is omitted.

  As shown in FIGS. 20 and 21, the end cap 91 includes a base portion 92, an extension portion 93, and a guide portion 94. The base portion 92 has a bottomed shape and covers the openings at both ends in the longitudinal direction of the shade 81. The extending portion 93 has a flat plate shape and extends in a direction substantially orthogonal to both end surfaces of the shade 81 in the longitudinal direction. The extending portion 93 extends from the upper end of the base portion 92 so as to cover the upper surface of the end portion in the longitudinal direction of the light source mounting portion 42a. The guide portion 94 is provided so as to protrude upward from the upper surface of the extension portion 93.

  The guide portion 94 connects a pair of side wall portions 94a extending upward in a substantially trapezoidal shape in side view, an inclined surface portion 94b connecting the back sides of the pair of side wall portions 94a, and an upper surface side of the pair of side wall portions 94a. A top surface portion 94c. When the end cap 91 covers openings at both ends in the longitudinal direction of the shade 81 to which the base member 42 is assembled, a space S in which the wiring 63 can be arranged is formed by the guide portion 94 (see FIG. 22). The space S is a space surrounded by the side wall portion 94a, the inclined surface portion 94b, and the top surface portion 94c.

  As shown in FIG. 5, the pair of end caps 91 are attached to both ends of the shade 81 in the longitudinal direction. The pair of end caps 91 closes the pair of openings formed at the pair of end portions in the longitudinal direction of the shade 81. In the lighting fixture 11 in a state where the light source unit 41 is attached to the main unit 21, the end cap 91 is locked by the end member 26. In addition, as shown in FIG. 6, in the lighting fixture 11, a part of both ends in the short direction of the shade 81 is accommodated in the recess 22. The end cap 91 is formed of the same material as the shade 81. The end cap 91 may be formed of a material different from that of the shade 81.

Next, a procedure for attaching the light source unit 41 to the main unit 21 will be described with reference to FIGS. 10 to 13.
First, when an operator attaches the light source unit 41 to the main unit 21 fixed to the ceiling surface C from below the main unit 21 (see FIG. 10), the tip of the hook portion 72 of the attachment spring 71 included in the light source unit 41 is provided. The (first engaging portion 72c) is inserted through the through hole 38 of the mounting bracket 31 of the main unit 21, and the hook portion 72 is hooked on the hook portion 36 (see FIG. 11). In this case, the light source unit 41 is suspended below the main body unit 21 in an inclined state so that the second engagement portion 73 side of the mounting spring 71 is on the lower side (this state is referred to as a temporarily suspended state).

  When the light source unit 41 is temporarily suspended as shown in FIG. 11, the operator can stabilize the position of the light source unit 41 without supporting the light source unit 41 with hands. The operation of connecting the wire to the terminal block 62 can be performed. The terminal block 62 is provided with a connection terminal having a gap that is narrower than the thickness of the power supply line so that the connected power supply line is not easily disconnected, and can be connected only by inserting the power supply line with a relatively strong force. Often configured. Therefore, the operator often connects the power line to the terminal block 62 using both hands. In this way, by placing the light source unit 41 in a temporarily suspended state, an operator can perform attachment work and electrical connection work of the light source unit 41 alone. On the other hand, in the case of lighting fixtures where the light source unit cannot be suspended, the other worker uses both hands to connect the power line while holding the light source unit with his hand to prevent it from falling. Since work to connect to the terminal block must be performed, at least two workers are required, and work efficiency is not good.

  Next, as shown in FIG. 12, the operator lifts the second engaging portion 73 side of the mounting spring 71 of the light source unit 41 to bring the light source unit 41 into a substantially horizontal state. Then, the light source unit 41 is pushed upward toward the main body unit 21 while the light source unit 41 is held in a substantially horizontal state. Then, the operator engages the first engaging portion 72 c of the mounting spring 71 with the first engaged portion 37 of the mounting bracket 31, and also connects the second engaging portion 73 of the mounting spring 71 to the first mounting portion 31 of the mounting bracket 31. 2 Engage with the engaged portion 33. That is, the first engaging portion 72 c and the second engaging portion 73 are engaged with the first engaged portion 37 and the second engaged portion 33 by moving the light source unit 41 upward. Specifically, the curved portion 73b comes into contact with the bent portion 33b immediately before the first engaging portion 72c and the second engaging portion 73 engage with the first engaged portion 37 and the second engaged portion 33. The curved portion 72b contacts the bent portion 37c. By raising the light source unit 41 from the contact state, the curved portion 73b moves along the bent portion 33b, and the second engaging portion 73 is elastically deformed inward (on the hook portion 72 side). Similarly, the curved portion 72b moves along the bent portion 37c, and the hook portion 72 is elastically deformed inward (to the second engaging portion 73 side). When the curved portion 73b gets over the V-shaped portion of the bent portion 33b, the second engaging portion 73 returns to its original shape, and the inclined surface 73c contacts the inclined surface 33c. Similarly, when the curved portion 72b gets over the V-shaped portion of the bent portion 37c, the hook portion 72 returns to its original shape, and the inclined surface 72d comes into contact with the inclined surface 37d. Thereby, the light source unit 41 is attached to the recessed part 22 in the state in which the upper end side was accommodated in the recessed part 22 (refer FIG. 13).

As described above, just before the first engaging portion 72c and the second engaging portion 73 engage with the first engaged portion 37 and the second engaged portion 33, the curved portion 73b contacts the bent portion 33b. The curved portion 72b contacts the bent portion 37c. At this time, the curved curved portion 73b makes line contact with the inclined surface 33d (see FIG. 12) of the bent portion 33b, and the curved curved portion 72b makes line contact with the inclined surface 37e (see FIG. 12) of the bent portion 37c. To do. Thereby, for example, there is less friction than in the case where the surfaces are in surface contact with each other, and smooth engagement can be achieved. Further, since the curved curved portion 72b and the curved portion 73b are formed in a curved shape (convex curved surface shape), the light source unit 41 is slightly in the short direction with respect to the corresponding inclined surface 37e and inclined surface 33d. Even if it moves, the curved portion 72b and the curved portion 73b are received by the inclined surface 37e and the inclined surface 33d. That is, even when the operator holds the light source unit 41 and the hand is slightly moved and the light source unit 41 moves in the short direction, the light spring unit 41 is allowed within a predetermined range, and the mounting spring 71 is engaged with the mounting bracket 31. Can be combined.
The “line contact” includes not only a case where the contact is exactly in a line but also a case where the contact has a predetermined width but is in a substantially line.

  In the state shown in FIG. 13, the main body unit 21 and the light source unit 41 have the inclined surface 72d in contact with the inclined surface 37d and the inclined surface 73c in contact with the inclined surface 33c. Further, in the state shown in FIG. 13, with the weight of the light source unit 41, the curved portion 72b cannot get over the V-shaped portion of the bent portion 37c, and the hook portion 72 is on the inner side (the second engaging portion 73 side). Does not elastically deform. Similarly, the curved portion 73b cannot get over the V-shaped portion of the bent portion 33b, and the second engaging portion 73 is not elastically deformed inward (hook portion 72 side). Accordingly, the mounting spring 71 is not detached from the mounting bracket 31 only by the weight of the light source unit 41, and the light source unit 41 is stably held by the main body unit 21.

  When removing the light source unit 41 from the main unit 21, for example, the operator holds both ends of the light source unit 41 (sade 81) shown in FIG. 13 in the short direction and pulls it downward (in the direction of separation). By taking out, it is possible to disengage the first engaging portion 72c and the second engaging portion 73 from the first engaged portion 37 and the second engaged portion 33, respectively. Specifically, when the operator applies a force to pull the light source unit 41 (the shade 81) downward, the inclined surface 73c gets over the V-shaped portion of the bent portion 33b, and the second engaging portion 73 Elastically deforms inward (on the hook part 72 side). Similarly, the curved portion 72b gets over the V-shaped portion of the bent portion 37c, and the hook portion 72 is elastically deformed inward (on the second engaging portion 73 side). Thus, when the light source unit 41 is moved downward from the engaged state shown in FIG. 13, the attachment spring 71 is elastically deformed, and the engagement state of the attachment spring 71 and the attachment fitting 31 is released.

When the engagement state of the attachment spring 71 and the attachment fitting 31 is released, the attachment spring 71 returns to its original shape from the elastically deformed state, and the hook portion 72 passes through the through hole 38. Specifically, the base 72 a side of the mounting spring 71 is positioned inside the extension portion 32 (side facing the second engaged portion 33), and the first engagement portion 72 c side of the mounting spring 71 is the extension portion 32. It will be in the state located in the outer side (opposite side facing the 2nd to-be-engaged part 33).
Further, when the light source unit 41 is further lowered, the hooking portion 36 enters the inner peripheral side of the bending portion 72 b and the hook portion 72 is hooked on the hooking portion 36.

  When the light source unit 41 is moved downward in this manner, the hook portion 72 is hooked on the hook portion 36 as shown in FIG. 12, and the light source unit 41 is temporarily suspended from the main unit 21 as shown in FIG. It becomes a state. Thereafter, as shown in FIG. 10, the light source unit 41 can be detached from the main unit 21 by removing the hook portion 72 from the hook portion 36. With such a configuration, when the operator removes the light source unit 41 from the main unit 21, the hook portion 72 can be hooked even if the light source unit 41 is accidentally dropped after the attachment spring 71 and the mounting bracket 31 are disengaged. The light source unit 41 can be prevented from falling on the ground by being hooked on 36 and temporarily suspended. In addition, since the light source unit 41 can be temporarily suspended as described above, wiring work, repair / inspection work can be easily performed.

  As shown in FIG. 9C, the curved portion 72b of the hook portion 72 has a curved surface on the inner peripheral surface, and has a space S1 that is substantially circular in a side view. For example, when removing the light source unit 41 from the main unit 21, even if the light source unit 41 is accidentally dropped after the engagement of the mounting spring 71 and the mounting bracket 31 is released, the hook 36 of the mounting bracket 31 collides in the space S1. However, the bounce at the time of dropping can be absorbed, and the curved portion 72b is configured not to easily come off from the hook portion 36. For example, when the space S1 is a narrow and narrow space in a side view, the hooking portion 36 cannot move in the short direction (width direction) of the light source unit 41 and the bounce when the light source unit 41 falls is dropped. It becomes difficult to absorb and it becomes easy to come off from the hook part 36.

  The attachment spring 71 has a hook portion 72 and a second engagement portion 73. Both end portions of the connection portion 74 are fixed ends, and upper end portions of the hook portion 72 and the second engagement portion 73 are free. It constitutes a cantilever spring as an end. Since the hook portion 72 is formed so that the base portion 72a and the first engaging portion 72c face each other via the curved portion 72b, the bending strength (difficulty of bending) of the leaf spring is greater than that of the second engaging portion 73. growing. That is, the hook portion 72 is configured to require a force to bend as a leaf spring than the second engaging portion 73. With this configuration, when the attachment spring 71 is engaged with the attachment fitting 31, the second engagement portion 73 whose bending rigidity is smaller than the hook portion 72 comes into contact with the bent portion 33b and begins to bend first. Then, the hook portion 72 (curved portion 72b) comes into contact with the bent portion 37c and begins to bend. In this way, by configuring the hook portion 72 of the attachment spring 71 and the second engagement portion 73 to have different bending rigidity, a large force is applied when the operator engages the attachment spring 71 with the attachment fitting 31. do not need. Further, when the attachment spring 71 is engaged with the attachment fitting 31, the first engagement portion 72 c of the hook portion 72 is firmly fixed by the bending portion 37 c of the first engaged portion 37 due to the relatively large bending rigidity of the hook portion 72. Therefore, the mounting spring 71 is not easily detached from the mounting bracket 31, and the light source unit 41 is stably held by the main body unit 21.

As shown in FIG. 10, the mounting bracket 31 may be configured such that its tip 36 a is received in the recess 22 of the main unit 21. That is, the mounting bracket 31 may be configured such that the vertical height dimension H1 (see FIG. 7) is smaller than the height dimension (depth dimension) D of the recess 22. As a result, since the mounting bracket 31 does not protrude outward from the recess 22 of the main unit 21, the possibility that the mounting bracket 31 is damaged by contact with the surroundings when the main unit 21 is transported or the possibility of rattling is reduced. Can do. Furthermore, the main unit 21 can be configured compactly, and space saving can be achieved when the main unit 21 is packed.
As shown in FIG. 10, the mounting spring 71 may be configured such that, for example, the height dimension H <b> 2 in the vertical direction is smaller than the height dimension H <b> 3 of the power supply device 61. Thereby, the light source unit 41 can be comprised compactly and the space saving at the time of packing of the light source unit 41 can be achieved.

  The mounting bracket 31 or the mounting spring 71 according to the present embodiment may be configured to be divided (see FIGS. 23 and 24) or separable at the midway part (for example, the central part) of each of the connecting parts 34 and 74. Thereby, for example, even when the dimension (width dimension) of the light source unit 41 in the short direction is changed, the divided mounting bracket 31 or the mounting spring 71 can be appropriately arranged according to the width dimension. .

  Regardless of whether the attachment spring 71 is integrated or separated, a hook portion 72 may be provided instead of the second engagement portion 73 so that the attachment spring has a pair of hook portions 72. . Thereby, since the right and left of the mounting spring can be made common, the operator does not mistake the mounting direction of the mounting spring.

  In this embodiment, the mounting spring 71 is attached to the light source unit 41 and the mounting bracket 31 is mounted to the main body unit 21. For example, the mounting bracket 31 is mounted on the light source unit 41 side and the mounting bracket 31 is mounted on the main body unit 21 side. The spring 71 may be attached.

  As described above, the mounting bracket 31 of the present embodiment is opposed to the through hole 27 provided at the center in the longitudinal direction of the upper surface portion 22a of the main body unit 21 and is disposed at a position spaced from the through hole 27 at equal intervals. Is done. Similarly, the mounting spring 71 is also arranged at a position spaced apart from the central portion of the light source unit 41 at equal intervals. However, the mounting position of the mounting bracket 31 and the corresponding mounting spring 71 is not particularly limited. For example, the mounting positions of the pair of mounting brackets 31 and the pair of mounting springs 71 are arranged at asymmetric positions in the longitudinal direction, not at regular intervals from the longitudinal center of the main unit 21 and the light source unit 41 of the lighting fixture 11. It is good. By configuring in this way, it is possible to prevent an operator from attaching the light source unit 41 to the main unit 21 in the wrong direction.

  Further, for example, as a modification of the mounting spring 71 of the present embodiment, as in the mounting spring 71A shown in FIG. 14, the position in the longitudinal direction of the connecting portion 74 of the screwing through holes 75 and 75 is changed, You may arrange | position in the position which becomes asymmetrical. That is, the through holes 75 and 75 may be arranged at positions where the positions of the through holes 75 and 75 are not rotationally symmetric when the attachment spring 71 is rotated 180 degrees around the center C of the connecting portion 74. By configuring in this way, it is possible to prevent an operator from attaching the mounting spring 71 and the mounting bracket 31 in the base member 42 in the wrong direction.

  In the present embodiment, the position of the screw-fixing through hole 75 of the mounting spring 71, that is, the position of the screw is configured not to overlap the position of the substrate 54 of the light source unit (LED module substrate) 51. Thereby, even if the screw for fixing the attachment spring 71 penetrates the base member 42, it is possible to prevent the screw from interfering with the substrate 54. By preventing the screw from interfering with the substrate 54, the substrate 54 is damaged at the tip of the screw, or the substrate 54 is lifted by the screw to reduce the contact area between the substrate 54 and the base member 42. It can prevent that heat dissipation falls.

  In addition, as shown in FIG. 15, instead of the mounting bracket 31 of the present embodiment, a configuration in which a portion for mounting the mounting spring 71 on the pair of side wall portions 22 b of the concave portion 22 of the main body unit 21 may be directly formed. Specifically, the hooking portion 23 that hooks the hook portion 72 on one side wall portion 22 b and the engaged portion 28 that engages the first engaging portion 72 c of the hook portion 72 are provided. A second engaged portion 29 with which the second engaging portion 73 is engaged is provided on the other side wall portion 22b. Thereby, since the mounting bracket 31 can be omitted, the number of parts can be reduced.

  Further, the mounting spring 71 (in this embodiment, at least one of the two mounting springs 71) may be integrally formed with the power supply case of the power supply device 61. Thereby, since the attachment spring 71 can be omitted, the number of parts can be reduced.

  In the lighting fixture 11 according to the present embodiment described above, the mounting bracket 31 disposed in the recess 22 of the main unit 21 and the light source unit 41 are disposed on the opposite side of the light source unit 51 and can be mounted on the mounting bracket 31. A mounting spring 71, the mounting spring 71 of the light source unit 41 has a hook-shaped hook portion 72, the mounting bracket 31 has a hook portion 36 for hooking the hook portion 72, and the light source unit 41 is connected to the main unit 21. The hook portion 72 is configured to be hooked on the hook portion 36 when the hook portion 72 is moved away from the concave portion 22 to move away from the concave portion 22. That is, since the fall prevention structure for the light source unit 41 including the hook portion 72 and the hook portion 36 is disposed in the concave portion 22 of the main unit 21, the main unit 21 can be downsized.

  The shape of the lighting fixture 11 of this embodiment is an example, and is not limited to the shape of this embodiment. For example, when the shape of the luminaire 11 is other than the elongated shape, the shape can be set accordingly. Further, the light source unit can be appropriately modified according to the shape of the main unit.

DESCRIPTION OF SYMBOLS 11 Lighting fixture 21 Main body unit 22 Recessed part 31 Mounting bracket 36 Hook part 41 Light source unit 51 Light source part 71 Mounting spring 72 Hook part 81 Seed 82 Opposed surface part 83 Side surface part 84 Flat part 85 Groove part

Claims (3)

A light source unit having a light source unit;
A main body unit for holding the light source unit, and a lighting fixture comprising:
The light source unit has a long shade covering the light source unit,
Said shade is
An opposing surface portion disposed opposite to the light source portion and covering an irradiation surface side of the light source portion;
A pair of side surfaces extending from both ends of the opposing surface portion in the short direction and covering the side surfaces of the light source unit;
The side surface portion includes a pair of groove portions disposed between a planar portion disposed in the longitudinal direction of the shade, one end in the short direction of the planar portion, and both ends in the short direction of the facing surface portion. Having a lighting fixture.   The lighting fixture according to claim 1, wherein the pair of side surface portions are parallel to each other. A light source unit having a light source unit,
The light source unit has a long shade covering the light source unit,
Said shade is
An opposing surface portion disposed opposite to the light source portion and covering an irradiation surface side of the light source portion;
A pair of side surfaces extending from both ends of the opposing surface portion in the short direction and covering the side surfaces of the light source unit;
The side surface portion includes a pair of groove portions disposed between a planar portion disposed in the longitudinal direction of the shade, one end in the short direction of the planar portion, and both ends in the short direction of the facing surface portion. A light source unit;

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