JP6495966B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture using an LED as a light source.

  In recent years, a light source using a light emitting diode (LED) has been developed as a light source of a lighting fixture. For example, Patent Literature 1 discloses a lighting fixture having a light source unit in which a plurality of LEDs are arranged on a rectangular plate-like substrate. The lighting fixture is usually provided with a fixture main body for holding a light source unit, a power supply device, and the like. The lighting fixture disclosed in Patent Document 1 is also provided with a fixture main body (chassis 1).

  Patent Document 1 discloses a lighting fixture in which an LED module 2 as a light source is attached to a disk-shaped base 11 of a chassis 1 via a light source holding unit 3. The chassis 1 is made of a metal such as iron or aluminum, and also has a function as a heat sink that dissipates heat from a heating element such as a light source via the light source holding unit 3.

JP 2011-192475 A

  However, in the lighting fixture disclosed in Patent Document 1, a plurality of LED modules 2 serving as heating elements are attached to the chassis 1 via the light source holding portion 3 inside the lighting fixture. For this reason, heat tends to be trapped inside the lighting fixture, and heat radiation to the outside of the lighting fixture is not efficiently performed. Moreover, since the chassis 1 has a flat structure, it is easily bent and weak in strength.

  The present invention has been made to solve the above problems. An object of the present invention is to provide a luminaire that can efficiently dissipate heat generated from a power supply device to the outside of the luminaire, and can reduce performance degradation of the power supply device.

  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 the present application includes a light source portion on which a plurality of LEDs are mounted on a substrate, and a fixture main body that holds the light source portion, and the fixture main body has a mounting surface to which the lighting fixture can be attached. An instrument upper surface that can be opposed to the power supply unit, an accommodating part that accommodates the power supply device, and a light source attaching part that holds the light source part, wherein the accommodating part protrudes from the instrument upper surface toward the attaching surface side, and The portion is formed with a storage portion side surface rising continuously from the device upper surface to the mounting surface side, and a storage portion upper surface continuously from the storage portion side surface in the center direction of the device main body. The housing portion and the light source mounting portion are integrally formed, and a surface on the irradiation surface side of the housing portion is provided closer to the irradiation surface side than the light source mounting portion, and on the irradiation surface side of the housing portion Irradiation surface side connecting the surface and the irradiation surface side surface of the instrument body In which housing portion side is formed.

The lighting fixture disclosed in the present application can take the following aspects based on the above configuration.
In the lighting fixture disclosed in the present application, it is preferable that the housing portion is arranged in a radially central portion with respect to the light source portion in the fixture main body.

  In the lighting fixture disclosed in the present application, it is preferable that at least a part of the power supply device protrudes toward the mounting surface from the upper surface of the fixture.

  The lighting fixture disclosed in the present application further includes an elastically deformable packing. The packing is preferably attached to the outer surface of the housing portion.

  In the lighting fixture disclosed in the present application, it is preferable that the power supply device and the light source unit are arranged at positions that do not overlap in a plan view.

  ADVANTAGE OF THE INVENTION According to this invention, the heat which generate | occur | produces from a power supply device can be efficiently radiated | emitted outside the lighting fixture, and the performance fall of a power supply device can be reduced.

The side view of the lighting fixture 11 which concerns on embodiment of this invention. The figure which shows a part of cross section which cut | disconnected the lighting fixture 11 in radial direction. The figure which looked at the instrument main body 21 of the state which removed the light source part 41, the accommodating part 23, and the power supply device 31 from the irradiation surface side. The figure which looked at the instrument main body 21 of the state which attached the light source part 41 to the light source attachment part 22 from the irradiation surface side. AA arrow sectional drawing in FIG. The perspective view which shows the modification of the lighting fixture 11 which concerns on this embodiment. The side view which shows the modification of the lighting fixture 11 which concerns on this embodiment. BB arrow sectional drawing in FIG.

  The lighting fixture 11 which concerns on embodiment of this invention is demonstrated using FIGS. 1-5. The lighting fixture 11 according to the present embodiment is a lighting fixture that uses the LED 42 as a light source. As shown in FIG. 1, the luminaire 11 is a ceiling light that is directly attached to the ceiling. Below, the side which irradiates the light of the lighting fixture 11 is made into the irradiation surface side of the lighting fixture 11, and the side which opposes mounting surfaces, such as a ceiling in the lighting fixture 11, is the attachment surface side (the ceiling side in an installation state) of the lighting fixture 11. Will be described.

  As shown in FIGS. 1 and 2, the lighting fixture 11 mainly has a fixture main body 21, a power supply device 31, a light source unit 41, a shade 51, and a protection member (not shown).

As shown in FIGS. 2, 3, and 4, the fixture main body 21 constitutes the main body of the lighting fixture 11. The instrument body 21 is a so-called base or chassis member. The lighting fixture 11 according to the present embodiment has a circular planar shape, and the outer contour shape of the fixture main body 21 in plan view is also circular. The appliance main body 21 holds the power supply device 31, the light source unit 41, the shade 51, and the like. The instrument main body 21 includes a light source mounting portion 22, a rib portion 25, a housing portion 23, and a mounting hole 24. The fixture body 21 is disposed between a plurality of light source attachment portions 22 having a projecting surface (a light source attachment surface portion 22a described later) that protrudes toward the irradiation surface side of the lighting fixture 11 and the plurality of light source attachment portions 22. The rib portion 25 is integrally formed as a single member. The housing portion 23 and the mounting hole 24 are provided on the radial center portion side of the instrument main body 21, and the light source mounting portion 22 is provided on the radially outer peripheral side of the housing portion 23. The appliance main body 21 uses a metal plate such as aluminum in consideration of durability capable of holding the power supply device 31, the light source unit 41, and the shade 51 and thermal conductivity for dissipating heat generated by the light source unit 41. Is formed. In addition, the instrument main body 21 can be formed not only with a metal and aluminum but with other materials, if it is a material with high durability and heat dissipation.
In addition, in this embodiment, although the rib part 25 and the light source attachment part 22 are integrally formed with the instrument main body 21, it does not specifically limit.

  The light source attachment portion 22 is provided in a region having a constant width along the circumferential direction of the instrument main body 21, and a plurality of light source attachment portions 22 are arranged in a substantially arc shape around the outer peripheral side of the radial central portion of the instrument main body 21. The light source attachment part 22 is a part to which the light source part 41 is attached. As shown in FIG. 2, the light source attachment portion 22 has a surface on which the light source portion 41 is attached protruding toward the irradiation surface side. The light source mounting part 22 has a light source mounting surface part 22a and a light source fixing part 22b. The light source mounting surface portion 22a is a protruding surface that protrudes toward the irradiation surface side, is an arc-shaped surface having a predetermined width in the circumferential direction and the radial direction, and is a surface for mounting the LED light source module 44 in contact therewith. The light source fixing part 22b is a hole for screwing bolts provided at four corners in the vicinity of the outer periphery of the light source mounting surface part 22a in order to fix the light source part 41 with bolts. The light source fixing portion 22b is preferably formed by burring, for example, so that the length of the screwed portion with the bolt can be ensured long. A housing portion 23 is formed at the radial center of the instrument body 21, and the light source mounting portion 22 is provided in a radially outer region so as to surround the housing portion 23. Further, the light source mounting portion 22 is formed in a region slightly inside in the radial direction from the outer peripheral edge portion of the instrument main body 21. Since the light source mounting portion 22 is also a heat radiating portion that transmits heat generated in the light source portion 41 and releases it to the outside, the light source mounting surface portion 22a to which the light source portion 41 is mounted is flat so that the contact area with the light source portion 41 is widened. Is formed. The light source mounting portion 22 is formed so as to protrude toward the irradiation surface side, so that a space S (see FIG. 5) is formed on the mounting surface side of the fixture body 21 in a state where the lighting fixture 11 is mounted on a mounting surface such as a ceiling. The

A plurality of rib portions 25 are radially extended from the outer peripheral side of the central portion of the instrument body 21 in the radial direction. The rib portion 25 is disposed between the plurality of light source attachment portions 22. That is, the rib portions 25 and the light source attachment portions 22 are alternately arranged around the outer peripheral side of the central portion of the instrument body 21 in the radial direction. The rib part 25 protrudes to the attachment surface side opposite to the side from which the light source attachment part 22 protrudes (irradiation surface side). The length in the radial direction of the rib portion 25 is substantially the same as the width in the radial direction of the light source mounting portion 22 adjacent to the rib portion 25. The rib portion 25 has a function as a reinforcing rib for reinforcing the instrument main body 21, has a cross-sectional shape of a trapezoid (see FIG. 2), and radially from the outer peripheral side of the central portion in the radial direction of the instrument main body 21. By extending the plurality, the rigidity of the instrument body 21 can be improved. That is, the instrument body 21 is formed with a portion bent by the light source mounting portion 22 and the rib portion 25. The bent shape has higher bending rigidity than the flat shape. Therefore, the rigidity of the instrument body 21 can be increased by arranging a large number of bent portions in the radial direction of the instrument body 21 and in the circumferential direction.
In the present embodiment, the rib portion 25 is configured to project to the mounting surface side opposite to the side from which the light source mounting portion 22 projects (irradiation surface side), but is not particularly limited. The rib portion 25 may be in any shape as long as it has a function as a reinforcing rib for improving the rigidity of the instrument body 21. For example, the rib portion 25 protrudes to the irradiation surface side from which the light source mounting portion 22 protrudes. It may be formed. Further, the cross-sectional shape of the rib portion 25 may be formed in a cross-sectional rectangular shape, a cross-sectional arc shape, a cross-sectional uneven shape, or the like.

  The accommodating portion 23 is a portion in which a power supply device 31 and a lighting device (not shown) for turning on the LEDs 42 of the light source portion 41 are accommodated. The accommodating part 23 is provided in the center part of the instrument main body 21 in the radial direction. The housing portion 23 has a height and a width for housing the power supply device 31 and the lighting device. The accommodating part 23 is adjacent to the light source attaching part 22 to which the light source part 41 is attached. When the accommodating part 23 blocks the light from the light source part 41, the shadow of the accommodating part 23 is reflected on the shade 51. For this reason, the outer side of the accommodating part 23 is formed in an inclined surface, and makes it difficult to block the light from the light source part 41.

  The attachment hole 24 is a portion to which an adapter (not shown) is attached when the lighting fixture 11 is attached to the ceiling. The mounting hole 24 is provided at a position that is the center of the instrument body 21 in the radial direction. The attachment hole 24 is provided so as to penetrate from the irradiation surface side of the housing portion 23 to the attachment surface side of the instrument body 21. When attaching the lighting fixture 11 to the ceiling, the adapter is attached to the ceiling wiring fixture (hanging ceiling) for the lighting fixture, and the adapter is attached so as to be inserted into the mounting hole 24.

  The power supply device 31 is a device for lighting the LED 42 of the light source unit 41 together with a lighting device (not shown) and the like. The power supply device 31 and the lighting device are accommodated in the accommodating portion 23. The power supply device 31 is provided with a connector 32. When attaching the luminaire 11 to the ceiling, the connector 32 is connected to a connector (not shown) on the adapter side, so that the luminaire 11 is electrically connected to an external power source via the ceiling wiring fixture for the luminaire. The lighting device and the light source unit 41 are electrically connected by an electric wire (not shown).

The light source part 41 has a plurality of LEDs 42 and has a flat plate shape arranged on the light source attachment surface part 22 a that is a protruding surface of the light source attachment part 22. Specifically, the light source unit 41 includes a plurality of LED light source modules 44, and each LED light source module 44 is configured by mounting a plurality of LEDs 42 on a flat substrate 43. As shown in FIGS. 2 and 4, in the present embodiment, the light source unit 41 includes eight LED light source modules 44. The substrate 43 of each LED light source module 44 is preferably made to have the same shape and the same area, because the production becomes easy. In addition, it is preferable that the substrate 43 has an arc shape because a portion to be discarded when the substrate 43 is manufactured is small and a manufacturing yield is good. Each LED light source module 44 is arranged so as to surround the outer side in the radial direction of the housing portion 23. Each LED light source module 44 is attached to the light source attachment portion 22 with four bolts 71. Since each LED light source module 44 contacts and is fixed to the light source mounting surface portion 22a of each light source mounting portion 22, when each LED light source module 44 generates heat, the heat of the LED light source module 44 is transmitted to the instrument main body 21. . When the ambient temperature is lower than the temperature of the instrument body 21, the heat transmitted to the instrument body 21 is transmitted to the air around the instrument body 21. Thereby, the heat transmitted to the instrument main body 21 is dissipated to the attachment surface side of the instrument main body 21 via each light source attachment surface part 22a.
In addition, each LED light source module 44 may be attached to the light source attachment part 22 via a heat conductive sheet (not shown) or heat dissipation grease, and thereby higher heat dissipation can be obtained.

  In the light source unit 41, a plurality of LEDs 42 are arranged at least on the irradiation surface side of the light source mounting surface portion 22 a of the light source mounting portion 22. This is because the LEDs 42 mounted on the substrate 43 serve as a heat generation source, so that at least the LEDs 42 are arranged in the region of the light source mounting surface portion 22a to improve the efficiency of heat dissipation. For example, as shown in FIGS. 4 and 5, the size / shape of the LED light source module 44 in plan view and the size / shape of the light source mounting surface portion 22a in plan view need not be the same. That is, if the LED 42 that is a heat source is arranged in the region of the light source mounting surface portion 22a via the substrate 43, the heat dissipation effect according to the present invention can be obtained. Therefore, the LED 42 is mounted on the substrate 43 such as the outer peripheral edge of the substrate 43. As shown in FIG. 5, the unexposed portion may be arranged so as to protrude from the region of the light source mounting surface portion 22a.

  The shade 51 is a member that is attached so as to cover the irradiation surface side of the instrument main body 21 and distributes the light from the light source unit 41 to the outside while reflecting and diffusing the light. The seed 51 is formed of a resin material having translucency. The overall shape of the shade 51 is circular in plan, and gently swells in a dome shape on the lower surface side. The shade 51 has a structure that can be attached to and detached from the instrument main body 21 for cleaning the inside of the shade 51 or replacing parts of the instrument main body 21. As shown in FIG. 2, a first held portion 52 to be attached to the instrument body 21 is formed at the opening edge portion on the upper surface side of the shade 51.

  The instrument main body 21 is provided with a first holding portion 26 that holds the first held portion 52 of the shade 51. Although details are omitted, when the shade 51 is arranged at the attachment position of the instrument main body 21 and rotated in the first direction, the first held portion 52 of the shade 51 is held by the first holding portion 26 of the instrument main body 21. Then, the shade 51 is attached to the instrument main body 21. Further, when the shade 51 is rotated in the second direction with the shade 51 attached to the instrument main body 21, the first held portion 52 of the instrument main body 21 is detached from the first holding portion 26 of the shade 51, The shade 51 can be removed from the instrument body 21.

  The protection member is a member that is disposed between the instrument body 21 and the shade 51 so as to cover the light source unit 41. The protective member is formed of, for example, a resin material having translucency. Note that the protective member is not essential.

  In the lighting fixture 11 according to the present embodiment described above, as shown in FIG. 5, a space S is formed on the mounting surface side of the fixture body 21 by projecting the light source mounting portion 22 toward the irradiation surface side. For this reason, when the light source part 41 is disposed in contact with the light source attachment surface part 22 a of the light source attachment part 22, the heat generated from the light source part 41 is radiated to the air in the space S via the instrument body 21. For example, when the luminaire 11 is attached to the ceiling of a building, the space S is secured between the luminaire 11 and the ceiling, so that the air on the attachment surface side of the luminaire 11 is improved and heat is trapped. Can be radiated to the mounting surface side more efficiently.

  Moreover, according to this embodiment, the fixture main body 21 is provided with the several light source attachment part 22 which has the protrusion surface which protrudes in the irradiation surface side of this lighting fixture 11. FIG. Thereby, since the bending of the instrument main body 21 can be reduced, the rigidity of the instrument main body 21 can be raised. That is, by providing the instrument main body 21 with the plurality of light source mounting portions 22 as described above, it is possible to improve rigidity and heat dissipation.

Furthermore, in the luminaire 11, the rib body 25 is disposed between the light source mounting portions 22 included in the fixture main body 21, whereby the fixture main body 21 is further reinforced, and in addition to the effects provided by including the light source mounting portion 22, Since the bending of the instrument body 21 can be reduced, the rigidity of the instrument body 21 can be increased.
That is, according to the luminaire 11 according to the present embodiment, the heat generated from the light source unit 41 can be efficiently radiated to the outside of the luminaire 11 and the rigidity of the fixture body 21 can be ensured.

  In addition, according to the present embodiment, the plurality of LEDs 42 are disposed at least on the irradiation surface side of the light source mounting surface portion 22 a that is the protruding surface of the light source mounting portion 22. As a result, the plurality of LEDs 42 serving as heat generation sources are arranged at positions in contact with or close to the light source mounting surface portion 22a, so that heat is efficiently conducted to the air in the space S via the light source mounting surface portion 22a. The heat dissipation can be improved.

  Moreover, according to this embodiment, the instrument main body 21 is formed in a substantially circular shape in plan view, the light source mounting portion 22 is arranged in a substantially arc shape around the central portion in the radial direction of the instrument main body 21, and the rib portion 25 is formed. These are arranged radially from the central portion of the instrument body 21 in the radial direction. Thereby, rigidity can be secured against the force applied in the radial direction of the instrument body 21.

  Moreover, according to this embodiment, by providing both the light source attachment part 22 projected to the irradiation surface side, or both the light source attachment part 22 and the rib part 25, the bending of the instrument main body 21 can be suppressed and rigidity can be raised. Since it can do, the instrument main body 21 can be made thin, ensuring rigidity. By making the instrument main body 21 thinner, the material cost can be reduced.

  Moreover, according to this embodiment, the distortion (aging) of the instrument main body 21 by using for a long period of time can be reduced by raising the rigidity of the instrument main body 21. FIG. Further, by increasing the rigidity of the fixture main body 21, even when an impact is applied from the outside during transportation of the lighting fixture or the like, distortion does not easily occur, so that product defects can be reduced. When the instrument main body 21 is distorted, the gap between the instrument main body 21 and the shade 51 increases, and the possibility of dust and pests entering the lighting instrument 11 increases. However, the distortion of the instrument main body 21 is suppressed as in this embodiment. Therefore, such a problem is reduced.

  FIG. 6 is a perspective view showing a modification of the lighting fixture 11 according to the present embodiment. FIG. 6 shows a configuration of the instrument main body 21 mainly on the mounting surface C side. FIG. 7 is a side view showing a modification of the lighting fixture 11 according to the present embodiment. 8 is a cross-sectional view taken along the line BB in FIG. In the lighting fixture 11 shown in FIGS. 6-8, about the structure similar to the lighting fixture 11 shown in FIG. 1 etc., the same code | symbol is provided and detailed description is abbreviate | omitted. The modification of the lighting fixture 11 differs in the structure of the accommodating part 23 compared with the lighting fixture 11 shown in FIG. Hereinafter, different points will be mainly described.

  The accommodating portion 23 protrudes closer to the mounting surface C than the upper surface 21a of the instrument body 21. The accommodating portion 23 is provided on the center side in the radial direction of the instrument main body 21 with respect to the light source attachment portion 22. A space S <b> 1 is formed in a portion surrounded by the light source mounting portion 22, the housing portion 23, and the mounting surface C. The dimension H is a protruding amount of the housing part 23 and is a difference in height between the instrument upper surface 21 a of the instrument body 21 and the accommodation part upper surface 23 a of the accommodation part 23. The larger the dimension H is, the larger the space S1 that can be formed between the instrument body 21 and the mounting surface C is. Therefore, the thermal influence (mounting due to high temperature) that the heat generated from the light source 41 gives to the mounting surface C. The dissolution of the surface C) can be reduced. The dimension H can be set to, for example, 5 to 40 mm, but is not limited to this numerical range. The housing upper surface 23a is preferably a flat surface in order to stabilize the posture when the lighting fixture 11 is attached to the attachment surface C. In the present embodiment, the substrate 33 on which the power supply device 31 is mounted is located on the attachment surface C side (the housing unit upper surface 23 a side) with respect to the power supply device 31, and is more attachment surface than the instrument upper surface 21 a of the instrument body 21. It is located on the C side (accommodating unit upper surface 23a side). Further, at least a part of the power supply device 31 is also located closer to the attachment surface C side (accommodating portion upper surface 23a side) than the instrument upper surface 21a of the instrument body 21. Note that the position of the substrate 33 with respect to the power supply device 31 may be turned upside down in FIG. 8 so that the substrate 33 is positioned on the irradiation surface side with respect to the power supply device 31. In that case, at least a part of the power supply device 31 is positioned closer to the attachment surface C side (accommodating portion upper surface 23a side) than the instrument upper surface 21a of the instrument body 21.

  Further, the heat generated from the power supply device 31 is transmitted to the outside air (space S1) via the storage unit side surface 23b of the storage unit 23. The surface area of the storage portion side surface 23b of the storage portion 23 is larger than the surface area of the side surface of the storage portion 23 shown in FIG. Therefore, since the area which contacts external air on the surface of the accommodating part 23 becomes large, the heat which the power supply device 31 accumulates can be reduced, and the performance fall of the power supply device 31 can be reduced.

  A packing 61 is attached to the instrument main body 21. The packing 61 is fixed to the storage unit upper surface 23a (an example of the outer surface) of the storage unit 23 with an adhesive or the like. The packing 61 is made of an elastically deformable material such as urethane. When the lighting fixture 11 is attached to the mounting surface C, the packing 61 is pressed toward the mounting surface C by the fixture body 21 and is compressed and deformed. Since the packing 61 that has undergone compression deformation is pushed in a direction away from the mounting surface C by the force of returning to the original shape, the lighting fixture 11 is less wobbled in a state of being attached to the mounting surface C, and the posture is stabilized. The packing 61 can be omitted.

  In the luminaire 11 according to the modification, the space 23 is formed on the attachment surface C side of the instrument body 21 by causing the housing portion 23 to protrude toward the attachment surface C with respect to the instrument upper surface 21 a of the instrument body 21. For this reason, the heat generated from the light source unit 41 is radiated to the air in the space S <b> 1 through the instrument main body 21. For example, when the luminaire 11 is attached to the ceiling of a building, by securing a space S <b> 1 between the luminaire 11 and the ceiling, the air passage on the attachment surface C side of the luminaire 11 is improved and the appliance body 21. It is possible to prevent heat from being trapped and to dissipate heat toward the mounting surface C more efficiently. Thereby, the heat which the light source part 41 stores can be reduced, and the light quantity fall of the light source part 41 by temperature rise can be reduced. Moreover, since the clearance between the instrument main body 21 and the mounting surface C can be ensured by ensuring a large space S1, the thermal influence that the instrument main body 21 has on the mounting surface C (such as thermal melting of the mounting surface C). ) Can be reduced.

  Moreover, since the surface area of the accommodating part 23 can be enlarged by providing a several fin in the accommodating part upper surface 23a and the accommodating part side surface 23b, the heat dissipation of the instrument main body 21 can further be improved.

  Moreover, since the surface area of the light source attachment part 22 can be enlarged by providing the light source attachment part 22 with a some fin, the heat dissipation of the instrument main body 21 can further be improved.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said Example, A various change is possible. For example, although the luminaire 11 is a round shape, it may be a square shape or other shapes. Moreover, you may apply to a pendant light etc. besides a ceiling light.

  The shape of the instrument main body 21 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 a square shape other than the round shape or other shapes, the shape can be set accordingly. Further, it can be appropriately modified according to the shape of the light source unit 41.

DESCRIPTION OF SYMBOLS 11 Lighting fixture 21 Appliance main body 21a Appliance upper surface 22 Light source attachment part 23 Accommodation part 23a Accommodation part upper surface 23b Accommodation part side surface 24 Attachment hole 25 Rib part 31 Power supply device 33 Board | substrate 41 Light source part 42 LED
43 Substrate 44 LED light source module 51 Sade 61 Packing

Claims (5)

A light source unit in which a plurality of LEDs are mounted on a substrate;
An instrument main body for holding the light source unit,
The appliance main body includes an appliance upper surface that can be opposed to an attachment surface to which the lighting fixture can be attached, a housing portion in which a power supply device is accommodated, and a light source attachment portion that holds the light source portion.
The accommodating portion protrudes from the upper surface of the instrument to the mounting surface side,
The housing portion is formed with a housing portion side surface rising continuously from the instrument upper surface to the mounting surface side, and a housing portion upper surface continuously from the housing portion side surface in the center direction of the instrument body,
The instrument upper surface, the housing portion and the light source mounting portion are integrally formed ,
The surface on the irradiation surface side of the housing portion is provided on the irradiation surface side from the light source mounting portion,
An illumination fixture in which a side surface of the receiving portion on the irradiation surface side that connects a surface on the irradiation surface side of the housing portion and a surface on the irradiation surface side of the fixture body is formed . The lighting fixture according to claim 1,
The said accommodating part is a lighting fixture arrange | positioned in the said instrument main body at the radial direction center side rather than the said light source part. The lighting apparatus according to claim 1 or 2,
The said power supply device is a lighting fixture with which at least one part protrudes in the said attachment surface side rather than the said instrument upper surface. It is a lighting fixture as described in any one of Claims 1-3,
It further comprises an elastically deformable packing,
The packing is a lighting fixture attached to an outer surface of the housing portion. It is a lighting fixture as described in any one of Claims 1-4, Comprising:
The lighting fixture which is arrange | positioned in the position where the said power supply device and the said light source part do not overlap in planar view.

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