JP6757456B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire.

Conventionally, downlights such as the lighting fixtures described in Patent Document 1 have been widely used. Patent Document 1 discloses a lighting fixture used in a state where a hole is formed and embedded in a mounting surface such as a ceiling (building). This luminaire has a main body portion which is a portion embedded in the mounting surface and a frame portion which is a portion exposed to the outside from the mounting surface. Since the lighting fixture of Patent Document 1 is a downlight embedded in a mounting hole on the ceiling surface, there is little protrusion from the ceiling surface, and the ceiling surface can be produced neatly.

However, in the luminaire of Patent Document 1, it is necessary to provide a mounting hole for the luminaire on the ceiling, and once the luminaire is installed, it may be difficult to change the luminaire. Therefore, in recent years, a thin and small ceiling-mounted ceiling light such as the lighting fixture described in Patent Document 2 has been developed.

The lighting fixture disclosed in Patent Document 2 has an LED substrate, an LED lamp body having a lighting circuit board, and a connecting plate to which the LED lamp body is detachably attached, and power is supplied to the LED lamp body. An opening is provided, and the power supply opening has a quick-connect terminal. The power supply opening of the cylinder is inserted into the through hole of the external power supply line formed in the attached portion through the power supply port of the connecting plate.

JP-A-2010-182432 Japanese Patent No. 5538607

When the luminaire of Patent Document 2 is attached to a mounted portion such as a ceiling, the power supply opening of the cylinder must be inserted into both the through hole of the mounted portion and the opening of the connecting plate. If you try to insert the power supply opening along both the opening of the connecting plate and the through hole of the mounted part, the power supply opening of the cylinder will be due to the dimensional error of each and the inclination and misalignment when mounting the connecting plate. The portion may partially come into contact with the inner wall of the through hole of the attached portion, and a load may be applied to the power supply opening of the cylinder and the quick connection terminal inside the opening.
Further, although it is sufficient that the through hole can be properly formed in the attached portion, the through hole may be formed with some inclination or misalignment. When the power supply opening of the cylinder is inserted after the connecting plate is attached to the through hole in such a state, the power supply opening of the cylinder is regulated by the opening of the connecting plate and is more than the connecting plate. It will be inserted deeply into the through hole. Therefore, it is not possible to finely adjust the position of the power supply opening of the cylinder, and the power supply opening of the cylinder tends to partially contact the inner wall of the through hole of the attached portion, and the power of the cylinder There is a possibility that the supply opening and the quick connection terminal will be loaded.

Further, since the LED lamp body is detachably attached to the connecting plate, it is necessary to perform an attachment operation such as rotation of the LED lamp body after inserting the power supply opening of the cylinder into the through hole of the attached portion. At that time, there was a possibility that a load would be applied to the power supply opening of the cylinder and the quick connection terminal.

Therefore, the present invention has been made in view of the above problems, and provides a lighting fixture that is less likely to impose a load on the connecting portion when the lighting fixture is attached to the attached portion and can be directly attached to a mounting surface such as a ceiling. The purpose is.

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

That is, the luminaire disclosed in the present application is
Light source and
A power supply unit that supplies power to the light source unit and
An instrument main body having a light source mounting portion for mounting the light source portion on one surface and a power supply accommodating portion for accommodating the power supply unit on the other surface.
A back cover portion that covers the power supply accommodating portion side of the instrument body and is attached to the instrument body is provided.
The power supply unit has a power supply circuit unit and a power supply case for accommodating the power supply circuit unit.
When the power supply case is housed in the power supply accommodating portion, the lower end of the power supply case is positioned, and by attaching the back cover portion to the instrument body, one surface of the back cover portion becomes the upper end portion of the power supply case. The power supply unit is housed in the instrument main body in a state of contact.

In the luminaire disclosed in the present application
It is preferable that the light source unit is arranged at a position where it does not overlap with the power supply unit in a plan view but overlaps in a side view.

In the luminaire disclosed in the present application
It has a connection portion that is erected on the power supply accommodating portion side of the instrument body, and has a connection portion.
It is preferable that the connection portion is arranged at a position where a part thereof overlaps with the power supply portion in a side view.

In the luminaire disclosed in the present application
The appliance body has a connection portion on the power accommodating portion side,
The back cover portion has an insertion hole through which the connection portion is inserted.
It is preferable that a part of the connecting portion is interposed between the instrument main body and the back cover portion.

According to the present invention, it is possible to provide a luminaire that is thin and has a reduced number of parts.

The perspective view which shows the lighting equipment which concerns on one Embodiment of this invention. A side view also showing a lighting fixture. Similarly, a plan view showing a lighting fixture (with the cover and the diffuser removed). Similarly, a top view showing the mounting surface side of the lighting equipment. Top view also showing a lighting fixture (with the back cover and the cover removed). FIG. 4 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG. An exploded perspective view showing the configuration of a luminaire.

The lighting fixture 11 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8. The luminaire 11 according to the present embodiment is a luminaire that uses the LED element 42 as a light source. The luminaire 11 can be used as a direct-mounted ceiling light that is directly attached to a mounting surface such as a ceiling. The lighting fixture 11 can be attached not only to the ceiling surface but also to a wall surface (including an inclined surface) and used as a bracket light. In the following description, the side that irradiates the light of the luminaire 11 is the irradiation surface side of the luminaire 11, and the side of the luminaire 11 that faces the mounting surface such as the ceiling is the mounting surface side (irradiation surface side) of the luminaire 11. The other side). The mounting surface side of the lighting fixture 11 is the back surface side (back surface side) of the fixture main body 11. Further, in a state where the luminaire 11 shown in FIGS. 6 and 7 is attached to the attached portion C, the direction orthogonal to the attached portion C is set as the vertical direction of the luminaire 11, and the attachment surface side of the luminaire 11 is set. The direction directly below the irradiation surface side of the luminaire 11 will be described as upward. The direction orthogonal to the vertical direction of the luminaire 11 will be described as the side of the luminaire 11. Further, in the following description, a state in which the lighting fixture 11 and the like are viewed from below is defined as a plan view. The state in which the luminaire 11 or the like is viewed from a direction orthogonal to the vertical direction is defined as a side view. The 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.

As shown in FIGS. 1 to 8, the lighting fixture 11 includes a fixture main body 21, a power supply unit 31, a light source unit (LED module substrate) 41, a diffuser plate 51, a cover unit 61, a back cover unit 71, and a connection unit 81. Mainly prepare. The outer shape of the lighting fixture 11 is substantially circular in a plan view, and the height direction of the lighting fixture 11 (vertical direction of the lighting fixture 11 in FIG. 6) is the radial direction of the lighting fixture 11 (illumination in FIG. 6). It has a substantially cylindrical shape that is thin and flat, smaller than the dimension (in the direction orthogonal to the vertical direction of the fixture 11).
The outer shape of the lighting fixture 11 is not limited to this embodiment. In addition to the substantially circular shape in a plan view, for example, an elliptical shape, a square shape, a rectangular shape, a polygonal shape, a fan shape, or a combination thereof can be used.
Further, the attached portion C to which the lighting fixture 11 is attached is provided with a through hole H having a circular shape in a plan view. The through hole H is a hole for inserting an electric wire such as a power supply electric wire or a feed wiring electric wire connected to an external commercial power source.

The instrument body 21 is a member having a substantially circular shape in a plan view and a flat dish shape. The appliance main body 21 holds a power supply unit 31, a light source unit 41, a diffuser plate 51, a cover unit 61, a back cover unit 71, a connection unit 81, and the like. Specifically, the instrument main body 21 accommodates the power supply unit 31 in the power supply accommodating unit 29 described later on the mounting surface side, and the connection unit 81 and the back cover portion 71 are attached to the mounting surface side and on the irradiation surface side. It is a member to which the light source portion 41, the diffuser plate 51, and the cover portion 61 are attached. Examples of the material constituting the instrument main body 21 include metal materials such as aluminum and aluminum alloy having high thermal conductivity. The appliance main body 21 also has a heat radiating function of transmitting the heat generated by the light source unit 41 to the outside. The instrument body 21 has mechanical properties capable of holding the power supply unit 31, the light source unit 41, the diffuser plate 51, the cover unit 61, the back cover unit 71, the connection unit 81, etc., and dissipates the heat generated by the light source unit 41. It is formed by using a metal material such as aluminum in consideration of the thermal conductivity of the above. The instrument body 21 is formed so that the outer shape in a plan view substantially matches or is slightly smaller than the shape inside the cover portion 61.
The instrument body 21 is not limited to a metal such as aluminum, but can be formed of other materials such as resin or a combination thereof as long as the required mechanical properties and thermal conductivity can be ensured.

The instrument body 21 includes a central concave portion 22 (convex portion 22a, light source mounting portion 23, reflecting portion 24, locking step portion 25, terminal mounting portion 30), an outer peripheral edge portion 26, a side wall portion 27, a fixing member arranging portion 28, and It mainly has a power storage unit 29. The instrument body 21 is a member that is directly attached to the attached portion C by a fixing member 91 such as a screw.

The central recess 22 is a dish-shaped portion having a substantially circular shape in a plan view and a concave outer shape toward the mounting surface side. The central concave portion 22 includes a planar view circular convex portion 22a projecting toward the irradiation surface side in the central portion in the radial direction, a light source mounting portion 23 having a substantially annular plate shape in a plan view around the convex portion 22a, and the like. It has a reflecting portion 24 formed around the light source mounting portion 23 and a locking step portion 25 formed around the reflecting portion 24. On the mounting surface side of the light source mounting portion 23, a terminal mounting portion 30 for mounting the connecting portion 81 is formed in the central portion.
The instrument body 21 of the present embodiment has a central portion formed in a concave shape toward the mounting surface side. By forming the instrument body 21 in this way, the mechanical strength and rigidity of the instrument body 21 are formed. Can be raised.
Further, in the present embodiment, the shape of the instrument body 21 is such that the central portion of the instrument body 21 is formed in a concave shape toward the mounting surface side (upper in FIGS. 6 and 7), but the shape is particularly limited to this shape. It's not a thing.

The light source mounting portion 23 is a concave portion to which the light source portion (LED module substrate) 41 is positioned and mounted at a predetermined position. The light source mounting portion 23 is a mounting surface 23a which is a flat plate portion having a substantially annular shape in a plan view extending radially outward from the outer peripheral edge of the convex portion 22a, and a stepped portion formed along the outer peripheral edge of the mounting surface 23a. It has 23b. The mounting surface 23a is located substantially in the middle of the instrument body 21 in the vertical direction. In the light source mounting portion 23, the convex portion 22a of the instrument main body 21 engages with the opening 43a of the substrate 43 of the light source portion 41, and the outer peripheral edge portion of the substrate 43 is locked to the step portion 23b, so that the substrate 43 is mounted. It is positioned with respect to the light source mounting portion 23. Then, the substrate 43 of the light source unit 41 is attached in a state of being in contact with the attachment surface 23a of the light source attachment portion 23. The fixture body 21 transmits the heat generated by the light source unit 41 and easily releases it to the outside. Therefore, the mounting surface 23a of the light source mounting portion 23 with which the light source portion 41 is in contact has a wide contact area with the light source portion 41. It is formed flat so as to be.
In the present embodiment, the plan view shape of the mounting surface 23a of the light source mounting portion 23 is substantially annular, but the shape is not particularly limited as long as at least a part of the substrate 43 can be mounted. Other shapes other than the above may be used.

The reflecting unit 24 is a portion that reflects the light emitted from the LED element 42 and the light reflected by the inner wall surface of the diffuser plate 51 and emits the light to the irradiation surface side. The reflecting portion 24 is an inclined portion extending downward from the stepped portion 23b of the light source mounting portion 23 in a plan view annular shape and increasing in diameter as it goes downward. A locking step portion 25 for locking and positioning the diffusion plate 51 is provided around the reflection portion 24.

As shown in FIG. 6, the locking step portion 25 is an annular portion in which the outer peripheral edge portion of the diffusion plate 51 is locked. The locking step portion 25 has a pair of screw mounting portions 25a extending radially outward from the locking step portion 25 and for mounting the diffusion plate 51 by a mounting member such as a screw. The screw mounting portion 25a is a concave region protruding radially outward from the outer peripheral edge portion of the locking step portion 25, and is a portion where the mounting portion 51a of the diffusion plate 51 is locked and positioned. The screw mounting portion 25a is arranged so as to face the radial outer side of the reflecting portion 24.
In the present embodiment, the screw mounting portion 25a is provided for mounting the diffusion plate 51 using a mounting member such as a screw, but when a mounting method such as adhesion or fitting is adopted, the screw mounting portion 25a is not necessarily used. It is not necessary to provide.

As shown in FIG. 5, the terminal mounting portion 30 is a pair of semicircular mounting surface portions arranged on the mounting surface side of the light source mounting portion 23 so as to face the radial center of the instrument main body 21 in a plan view. It has a pair of locking portions 30b formed in a semicircular convex shape on the outer peripheral edge portion of the mounting surface portion 30a and the mounting surface portion 30a. The mounting surface portion 30a is a portion to which the fixing portion 84 of the connecting portion 81 is mounted by the screw member. The locking portion 30b is a portion in which the fixing portion 84 of the connecting portion 81 is locked and positioned.

The outer peripheral edge portion 26 is a substantially annular portion having a predetermined width in a plan view and extending radially outward from the outer peripheral edge portion of the locking step portion 25. The outer peripheral edge portion 26 is arranged radially outside the light source mounting portion 23, and is located below the light source mounting portion 23 in the vertical direction.

The side wall portion 27 is a substantially cylindrical portion extending upward from the outer peripheral edge of the outer peripheral edge portion 26. The side wall portion 27 has a plurality of cover mounting portions 27a and a pair of fixing member arranging portions 28. The cover mounting portion 27a is provided on the outer peripheral surface of the side wall portion 27, and is a portion for locking and mounting the locking end portion of the cover portion 61. The fixing member arranging portion 28 is a portion in which the outer peripheral edge portion 26 and the side wall portion 27 are bored inward in the radial direction, and extends outward in the radial direction from the wall portion 28a having a substantially V-shape in a plan view and the upper end of the wall portion 28a. It is composed of a flat plate-shaped instrument mounting portion 28b having a substantially triangular shape in a plan view. The instrument mounting portion 28b has a through hole formed by opening the instrument body 21 to be attached to the mounted portion C by a fixing member 91 such as a screw. As described above, the fixture main body 21 is configured such that the fixing member arranging portion 28, which is a fixed position by the fixing member 91, is on the outer peripheral side of the light source portion 41 and does not overlap with the power supply portion 31.

The power supply accommodating unit 29 is a space formed on the mounting surface side of the instrument main body 21 for accommodating the power supply unit 31 and the like and arranging the power supply unit 31 and the like, and has a height and width for accommodating the power supply unit 31 and the like. Is secured. Specifically, the power supply accommodating portion 29 is a substantially semicircular arc-shaped space having a predetermined width formed between the outer peripheral edge of the reflecting portion 24 and the inner peripheral surface of the side wall portion 27 in a plan view. Although the details will be described later, the power supply accommodating unit 29 can accommodate the power supply unit 31 and position it at a predetermined position.

The power supply unit 31 is a power supply device for supplying power to the LED element 42 included in the light source unit 41 to light the LED element 42. The power supply unit 31 is arranged on a surface side (back surface side) different from the surface side (irradiation surface side) on which the light source unit 41 is arranged in the instrument main body 21. The power supply unit 31 has a power supply circuit unit 32 and a power supply case 33 that houses the power supply circuit unit 32. The power supply circuit unit 32 is formed by mounting a plurality of electronic components on a printed wiring board processed into a semicircular arc shape having a predetermined width. The power supply case 33 has a substantially semicircular arc shape having a predetermined width in a plan view and a substantially square cross-sectional view, and has a bottomed semicircular arc shape with an open upper portion and a ceiling covering the upper end of the case portion 33a. It has a plate portion 33b. The power supply circuit unit 32 is housed in the power supply case 33 along the circumferential direction. The power supply case 33 covers and protects the periphery of the power supply circuit unit 32. As shown in FIG. 6, in the power supply unit 31, the lower end of the power supply case 33 in the radial direction is positioned by the locking step portion 25 by accommodating the power supply case 33 in the power supply accommodating unit 29, and the power supply case 33 The lower end on the outer side in the radial direction is positioned by the side wall portion 27. The power supply unit 31 (power supply case 33) is in a state in which the back cover portion 71 is attached to the mounting surface side of the lighting fixture 11, so that the lower side surface of the back cover portion 71 is in contact with the upper end portion of the power supply case 33. Then, it is arranged in the instrument main body 21. In this way, the power supply unit 31 can be arranged in the power supply accommodating unit 29 of the instrument main body 21 without using a mounting member such as a screw. The power supply unit 31 is for converting an alternating current supplied from an external commercial power source into a predetermined direct current and supplying the converted current to a plurality of LED elements 42 mounted on the substrate 43.

In this way, the light source unit 41 and the power supply unit 31 are arranged on the instrument main body 21, and the light source unit 41 and the power supply unit 31 are arranged at positions where they do not overlap in the plan view but overlap in the side view (see FIG. 6). There is.

The power supply unit 31 is electrically connected to a connection unit 81, which is a small and vertically long terminal block, via wiring (not shown). For example, when the luminaire 11 is attached to the attached portion C, the power supply portion 31 is electrically connected to the external commercial power source by connecting the power supply wire (not shown) of the external commercial power source on the back side of the ceiling to the connection portion 81. Will be done. The power supply unit 31 and the light source unit 41 are electrically connected by wiring 37 (see FIG. 3).
In this embodiment, the terminal block is used as the connection portion 81, but the present invention is not particularly limited. For example, instead of using a terminal block, a connection component such as a connector may be used.

The light source unit 41 is a portion that emits light toward the irradiation surface side of the luminaire 11. The light source unit 41 is a module substrate having a light emitting element that is a light source. In the present embodiment, as the light emitting element, an LED light source module in which LED (Light emitting diode) elements 42, which are a plurality of light sources, are surface-mounted on the substrate 43 is used. Specifically, the LED light source module is a light emitting module in which a plurality of LED elements 42 are arranged in the circumferential direction on the surface of a substrate 43 processed into a substantially annular shape having a predetermined width. The light source unit 41 is attached to the light source attachment unit 23 by a plurality of (three in this embodiment) screw members 49. The board 43 is electrically connected to the power supply unit 31 by wiring 37. In the LED light source module, the back surface of the mounting surface of the substrate 43 abuts and is fixed to the mounting surface 23a of the light source mounting portion 23. Therefore, when the LED light source module generates heat, the heat of the LED light source module is transferred to the instrument body 21. It is transmitted. When the ambient temperature is lower than the temperature of the instrument body 21, the heat transferred to the instrument body 21 is transferred to the air around the instrument body 21. As a result, the heat transferred to the instrument body 21 is dissipated to the periphery of the instrument body 21 via the mounting surface 23a.
In the present embodiment, the surface mount type LED element 42 is used as the light source, but the type of the light source is not limited to the LED element, and can be realized by using, for example, a COB type light emitting module or an organic EL element (OLED). It is possible.
Further, the substrate 43 may be attached to the light source mounting portion 23 via a heat conductive sheet (not shown) or thermal paste, whereby higher heat dissipation can be obtained.

The diffuser plate 51 is attached to the instrument main body 21 so as to cover at least the irradiation surface side of the light source unit 41, and transmits light that controls the light distribution to the outside while reflecting and diffusing the light from the light source unit 41 (LED element 42). It is a sex member. The diffusion plate 51 is a disk-shaped member. The diffuser plate 51 is made of a translucent resin material. The diffuser plate 51 can be made of, for example, one that has been subjected to grain processing (frost processing) in which fine irregularities are formed on the surface, or one in which a diffuser is mixed therein. The outer diameter of the diffuser plate 51 is smaller than the outer diameter of the locking step 25 of the instrument main body 21 (see FIG. 6), and the diffuser plate 51 can be locked to the locking step 25. The diffuser plate 51 closes the opening below the instrument main body 21 to prevent dust and the like from adhering to the LED element 42. The diffusion plate 51 has a pair of screw mounting portions 51a formed on its side surface so as to project outward in the radial direction. The screw mounting portion 51a is attached to the screw mounting portion 25a of the instrument main body 21 by a mounting member such as a screw.

The cover portion 61 is a member attached to the instrument main body 21 so as to mainly cover the outer peripheral edge portion, the outer peripheral edge portion 26, and the outer peripheral portion of the side wall portion 27 of the diffusion plate 51. The cover portion 61 is a substantially cylindrical member having an opening for exposing the diffusion plate 51 on the lower side and having an open upper end. The cover portion 61 is made of a resin material (for example, ABS resin (Acrylonitril-Butadie-Style)). The maximum inner diameter of the cover portion 61 is larger than the outer diameter of the instrument main body 21, and the cover portion 61 can be attached to the outside of the instrument main body 21. The cover portion 61 has a locking protrusion (not shown) on its inner wall surface. The locking protrusions are protrusions formed at predetermined intervals along the circumferential direction on the inner peripheral surface near the opening end of the cover portion 61. In the cover portion 61, the cover portion 61 is positioned with respect to the instrument main body 21 by locking the locking protrusion to the cover mounting portion 27a. The cover portion 61 has a structure that can be attached to and detached from the instrument main body 21 for cleaning the inside and replacing parts of the instrument main body 21.
Further, as the material of the cover portion 61, a resin other than ABS resin, wood, metal, or the like can be appropriately selected as needed.

The instrument main body 21 is provided with the cover mounting portion 27a described above for locking the locking protrusion of the cover portion 61. Although details are omitted, when the cover portion 61 is attached to the instrument main body 21, the cover portion 61 inserts the locking protrusion into the cover attachment portion 27a of the instrument main body 21 and rotates in one of the circumferential directions of the cover portion 61. Then, by locking the device, it can be attached to the instrument body 21. Further, when the cover portion 61 is rotated to the other side in the circumferential direction while the cover portion 61 is attached to the instrument main body 21, the locking protrusion of the cover portion 61 is disengaged from the cover attachment portion 27a of the instrument main body 21. The cover portion 61 can be removed from the instrument body 21.
The cover portion 61 is rotated and attached to the instrument main body 21. When the cover portion 61 is attached, the instrument main body 21 is fixed to the attached portion C by a fixing member 91. Therefore, even if the cover portion 61 is rotated, the instrument main body 21 does not rotate, and the connection portion 81 is less likely to be loaded.

The back cover portion 71 is a substantially circular flat plate member that covers the mounting surface side of the instrument main body 21. The back cover portion 71 is made of a metal material. The back cover portion 71 has an insertion hole 71a in the central portion for inserting the connection portion 81. The back cover portion 71 has a pair of through holes 71b formed so as to face each other across the insertion hole 71a to prevent the head of the screw member 86 from interfering with the back cover portion 71. A part of the head of the pair of screw members 86 is exposed through the through hole 71b (see FIG. 4). By providing the through hole 71b to expose a part of the head of the screw member 86, it is possible to prevent the height dimension of the instrument main body 21 from increasing. The back cover portion 71 covers the mounting surface side of the instrument main body 21 in a state where the connecting portion 81 is inserted into the insertion hole 71a and a part of the head of the screw member 86 is exposed in the through hole 71b. The back cover portion 71 is attached to a plurality of attachment portions (three locations in the present embodiment) provided on the attachment surface side of the instrument main body 21 by screw members 72. As a result, the fixed portion 84 of the connecting portion 81 is interposed between the back cover portion 71 and the mounting surface 23a of the light source mounting portion 23, and the fixed portion 84 of the connecting portion 81 is separated from the mounting surface 23a of the light source mounting portion 23. It can be reliably held so that it does not occur.

The connection unit 81 is a small and vertically long terminal block, and is electrically connected to the power supply unit 31 via an electric wire (wiring), and also electrically connects an electric wire (wiring) such as a power supply electric wire or a feed wiring electric wire. It is for connecting. The connection portion 81 is erected on the back surface side (mounting surface side) of the mounting surface 23a of the light source mounting portion 23 of the instrument main body 21 on which the light source portion 41 is arranged. In the present embodiment, the connecting portion 81 is erected on the surface of the instrument main body 21 facing the attached portion C. The connection portion 81 includes a quick-connect terminal member (not shown), a terminal housing 83, a fixing portion 84, and a cover 85. The fixing portion 84 is positioned by the locking portion 30b of the terminal mounting portion 30, and is attached to the mounting surface portion 30a by the screw member 86.

The quick-connect terminal member is formed by bending a metal plate, and the core wires of the power supply electric wire and the feed wiring electric wire are inserted along the vertical direction of the instrument main body 21 on one end side (upper end side). The core wire of the inserted electric wire is sandwiched between metal plates and electrically connected, and the other end side of the metal plate is electrically connected to the power supply unit 31 by wiring.

The terminal housing 83 has a vertically long and hollow substantially tubular shape, and is made of an electrically insulating resin. The terminal housing 83 contains a plurality of quick-connect terminal members. The terminal housing 83 includes an electric wire connection port 82 into which a core wire such as a power supply electric wire or a feed wiring electric wire is inserted.

The cover 85 is made of an elastic electrically insulating resin such as a silicone resin. It is attached to one end side (upper end side) of the terminal housing 83 so as to cover the electric wire connection port 82. A core wire such as a power supply electric wire or a feed wiring electric wire is pierced so as to penetrate the cover 85, inserted into the electric wire connection port 82, and electrically connected to the quick connection terminal member. By connecting in this way, it is possible to prevent foreign matter such as dust and water droplets from entering the electric wire connection port 82.

(Installation procedure of the lighting equipment of this embodiment)
An example of the mounting procedure of the lighting fixture 11 of the present embodiment will be described. First, one end side of an electric wire (hereinafter, simply referred to as an electric wire) such as a power supply electric wire or a feed wiring electric wire is pulled out from a through hole H provided in the attached portion C to the irradiation surface side. Next, the cover portion 61 is rotated to remove the cover portion 61 from the instrument main body 21. Next, the cover 85 is pierced so as to penetrate the core wire of the electric wire drawn from the through hole H, inserted into the electric wire connection port 82, and electrically connected to the quick-connect terminal member. Next, the instrument main body 21 is arranged at a desired position of the attached portion C so that the electric wire and the terminal housing 83 of the connecting portion 81 are inserted into the through hole H. Next, the tips of the two fixing members 91 and 91 are passed through the through holes of the respective instrument mounting portions 28b of the instrument main body 21 and screwed into the attached portion C to fix the instrument main body 21 to the attached portion C. Finally, the cover portion 61 is rotated in the direction opposite to that when the cover portion 61 is removed, and attached to the instrument main body 21.
The mounting procedure described above is an example, and the step of removing the cover portion 61 may be before or after the step of connecting the electric wire to the quick-connect terminal member.

According to the lighting fixture 11 according to the present embodiment described above, the fixture main body 21 is attached to the attached portion C by a fixing member 91 such as a screw, and the connection portion 81 is arranged with the light source portion 41 in the fixture main body 21. It is erected on the back side of the surface. The instrument main body 21 is attached to the attached portion C by using the fixing member 91 with the connecting portion 81 inserted into the through hole H of the attached portion C. Therefore, the instrument main body 21 can be attached to the attached portion C while adjusting the lateral position of the instrument main body 21 so as not to apply a load to the connection portion 81. Further, when the instrument main body 21 is attached to the attached portion C, there is no operation such as rotation. As a result, when the luminaire 11 is attached to the attached portion C, the load on the connecting portion 81 is less likely to be applied.

Further, in the present embodiment, the light source unit 41 and the power supply unit 31 are arranged on the instrument main body 21, and the light source unit 41 and the power supply unit 31 are arranged at positions where they do not overlap in the plan view but overlap in the side view. With this configuration, the lighting fixture 11 can be miniaturized without increasing the size of the lighting fixture 11 in the vertical direction. That is, a thin lighting fixture can be realized.

Further, in the present embodiment, the fixing position of the fixture body 21 by the fixing member 91 is configured to be on the outer peripheral side of the light source unit 41 and not to overlap with the power supply unit 31. As a result, since the fixing member 91 has a predetermined distance from the light source portion 41, shadows due to the fixing member 91 are unlikely to occur. In addition, the appliance main body 21 is attached to the attached portion C in a state where the power supply portion 31 is electrically connected to the commercial external power supply via the connecting portion 81. Since the power supply unit 31 and the fixing member 91 are not overlapped with each other, the fixing member 91 is unlikely to come into contact with the power supply unit 31, wiring, power supply wire, etc., and the installation work can be performed safely.
Further, in the present embodiment, the fixing position of the fixture main body 21 by the fixing member 91 is on the outer peripheral side of the appliance main body 21, and is at a position away from the connecting portion 81 erected in the central portion of the appliance main body 21. As a result, even when the fixing member 91 is tilted and screwed into the attached portion C, the attachment work can be safely performed without coming into contact with the connecting portion 81, the power supply electric wire, the feed wiring electric wire, or the like.

Further, in the present embodiment, the light source of the light source unit 41 is a light emitting element. As a result, a small lighting fixture can be realized.

Further, in the present embodiment, the power supply unit 31 is arranged on a surface different from the surface on which the light source unit 41 is arranged in the instrument main body 21. As a result, since the light source unit 41 and the power supply unit 31 are arranged on different surfaces of the instrument main body 21, it is not necessary to separately provide an insulating cover or the like for separating the light source unit 41 and the power supply unit 31, and the number of parts can be reduced.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, the shape of the luminaire may be a shape other than a substantially circular shape in a plan view, and may be, for example, a rectangular shape, a polygonal shape, or another shape.

11 Lighting equipment 21 Equipment body 28 Fixing member placement part 31 Power supply part 41 Light source part 51 Diffusing plate 61 Cover part 81 Connection part 91 Fixing member C Attached part

Claims (4)

Light source and
A power supply unit that supplies power to the light source unit and
An instrument main body having a light source mounting portion for mounting the light source portion on one surface and a power supply accommodating portion for accommodating the power supply unit on the other surface.
A back cover portion that covers the power supply accommodating portion side of the instrument body and is attached to the instrument body is provided.
The power supply unit has a power supply circuit unit and a power supply case for accommodating the power supply circuit unit.
When the power supply case is housed in the power supply accommodating portion, the lower end of the power supply case is positioned, and by attaching the back cover portion to the instrument body, one surface of the back cover portion becomes the upper end portion of the power supply case. A lighting fixture in which the power supply unit is housed in the fixture body in a state of contact. The luminaire according to claim 1, wherein the light source unit is arranged at a position where it does not overlap with the power supply unit in a plan view but overlaps in a side view. It has a connection portion that is erected on the power supply accommodating portion side of the instrument body, and has a connection portion.
The luminaire according to claim 1 or 2, wherein a part of the connection portion is arranged at a position where it overlaps with the power supply portion in a side view. A connection portion is provided on the power accommodating portion side of the instrument body.
The back cover portion has an insertion hole through which the connection portion is inserted.
The lighting fixture according to claim 1 or 2, wherein a part of the connection portion is interposed between the fixture main body and the back cover portion.

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