JP7065366B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture.

Solid-state light emitting devices such as LEDs (Light Emitting Diodes) are widely used as light sources for various devices in the lighting field or the display field because they are small in size, have good luminous efficiency, and have a long life. For example, in the field of lighting, LEDs are used as light sources for lighting fixtures such as downlights or ceiling lights.

Generally, the LED is unitized as an LED module and serves as a light source for various devices. For example, an LED module (light source) includes a substrate on which wiring is formed and one or more LED elements mounted on the substrate.

Specifically, a COB (Chip On Board) type LED module configured by directly mounting one or a plurality of LED chips (LED elements) on a substrate is known.

Further, an SMD type LED module configured by mounting one or more SMD (Surface Mount Devices) type LED elements packaged by housing an LED chip in a container on a substrate is also known. There is.

The LED module configured in this way is attached to a substrate which is a base portion of various devices. For example, in a lighting fixture, the LED module is arranged at a predetermined position of the fixture main body as a base portion and fixed to the fixture main body.

As a method of fixing the LED module to the base portion, a method of using a holder is known. Specifically, it is a method of fixing the LED module to the base portion by covering the LED module arranged on the base portion with a holder and fixing the holder and the base portion with screws (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-210621

As a holder for fixing the LED module to the base portion, a holder that functions as a connecting member for electrically connecting an electric wire (lead wire) for supplying electric power from the outside and the LED module is known.

A conventional holder 30X of this type is shown in FIG. As shown in FIG. 25, the holder 30X includes a holder main body 100X provided with an electric wire insertion hole 140X through which an electric wire (not shown) for supplying electric power from the outside is inserted, and a conductive plate fixed to the holder main body 100X. It has 200X.

In the holder 30X configured in this way, the LED module 20X is based by sandwiching the substrate 21X of the LED module 20X between a part of the holder 30X and the base portion 10X and screwing the holder 30X to the base portion 10X. It can be fixed to the portion 10X. At this time, one terminal portion of the conductive plate 200X comes into contact with the feeding terminal of the LED module 20X. Then, by inserting the electric wire into the electric wire insertion hole 140X of the holder 30X and pushing it in, the electric wire is connected to the other terminal portion of the conductive plate 200X located at the back of the electric wire insertion hole 140X. As a result, the electric wire inserted in the electric wire insertion hole 140 and the LED module 20X can be electrically connected via the conductive plate 200X, and the electric power supplied by the electric wire can be supplied to the LED module 20X.

However, with a conventional holder in a lighting fixture, the work of attaching a light source such as an LED module to the main body of the fixture (mounting work), which is the base portion, is complicated, and the work of connecting the electric wire and the conductive plate of the holder (wiring work). ) Is complicated. As a result, the assembly work of the lighting fixture 1 becomes complicated.

Therefore, in order to easily perform the wiring work of a plurality of electric wires, a holder provided with a plurality of tubular portions having a tubular portion with an electric wire insertion hole into which each electric wire is inserted is used, and a plurality of tubular portions are used as an instrument. A configuration is conceivable in which the holder is arranged in the instrument body so as to project outward from the through hole of the body.

However, in this configuration, water may collect between two adjacent cylinders among the plurality of cylinders, and the water may enter the cylinders to short-circuit the plurality of electric wires.

The present invention has been made to solve such a problem, and provides a lighting fixture capable of easily connecting a plurality of electric wires and suppressing a short circuit of the plurality of electric wires. The purpose is.

In order to achieve the above object, one aspect of the lighting fixture according to the present invention includes a fixture main body, a light source arranged in the fixture main body, and a plurality of tubular portions through which each of the plurality of electric wires is inserted. A connecting member for electrically connecting the plurality of electric wires and the light source is provided, and the plurality of cylinders project vertically from the back surface of the instrument body, and two adjacent cylinders of the plurality of cylinders are adjacent to each other. The height of the part is different.

The wiring work of a plurality of electric wires can be easily performed, and the short circuit of the plurality of electric wires can be suppressed.

It is a perspective view of the lighting equipment which concerns on embodiment. It is sectional drawing of the lighting equipment which concerns on embodiment in the IIA-IIA line of FIG. It is sectional drawing of the lighting equipment which concerns on embodiment in the IIB-IIB line of FIG. It is sectional drawing of the lighting equipment which concerns on embodiment in the IIC-IIC line of FIG. It is a figure which shows the state which a plurality of electric wires are connected to the luminaire which concerns on embodiment. It is a perspective view when the light source mounting structure in the lighting fixture which concerns on embodiment is seen from the back side. It is a perspective view when the light source mounting structure in the lighting fixture which concerns on embodiment is seen from the front side. It is an exploded perspective view when the light source mounting structure in the luminaire which concerns on embodiment is seen from the back side. It is an exploded perspective view when the light source mounting structure in the luminaire which concerns on embodiment is seen from the front side. It is sectional drawing of the light source mounting structure of the luminaire which concerns on embodiment in line VIII-VIII of FIG. It is a perspective view of the holder which concerns on embodiment. It is an exploded perspective view of the holder which concerns on embodiment. It is a perspective view which shows the state which the 2nd component was removed in the holder shown in FIG. It is a perspective view which shows the state which the 2nd component and the 3rd component were removed in the holder shown in FIG. FIG. 5 is a cross-sectional view of a light source mounting structure when cut in a cross section passing through a holding portion of the holder according to the embodiment. It is a perspective view when the plurality of conductive plates (first conductive plate, second conductive plate, third conductive plate) in the holder which concerns on embodiment are seen from the upper side. It is a perspective view when the plurality of conductive plates (first conductive plate, second conductive plate, third conductive plate) in the holder which concerns on embodiment are seen from the lower side. It is a top view which shows the arrangement example of a plurality of conductive plates in the holder which concerns on embodiment. It is a figure which shows the state before incorporating the conductive plate into a holder. It is a figure which shows the state after incorporating the conductive plate into a holder. It is a top view which shows typically the arrangement example of a plurality of conductive plates in a comparative example. It is a top view which shows typically the arrangement example of the plurality of conductive plates which concerns on embodiment. It is sectional drawing which shows the state before the electric wire is inserted into the cylinder part about the light source mounting structure of the luminaire which concerns on embodiment. It is sectional drawing which shows the state after the electric wire is inserted into the cylinder part about the light source mounting structure of the luminaire which concerns on embodiment. It is a figure for demonstrating the holder of the comparative example. It is sectional drawing of the holder of the comparative example. It is a figure which shows the structure of the 2nd part of the holder of the lighting fixture which concerns on the modification. It is sectional drawing of the 2nd part of the holder of the luminaire which concerns on the modification in the line BB of FIG. 24A. It is a figure for demonstrating a conventional holder.

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

Further, each figure is a schematic view and is not necessarily exactly illustrated. In each figure, substantially the same configuration is designated by the same reference numeral, and duplicate description may be omitted or simplified.

(Embodiment)
First, the schematic configuration of the luminaire 1 according to the embodiment will be described with reference to FIGS. 1, 2A and 2B. FIG. 1 is a perspective view of the lighting fixture 1 according to the embodiment. 2A is a cross-sectional view of the luminaire 1 on the line IIA-IIA of FIG. 1, and FIG. 2B is a cross-sectional view of the luminaire 1 on the line IIB-IIB of FIG. FIG. 2C is a cross-sectional view of the luminaire 1 in the line IIC-IIC of FIG. Note that, in FIGS. 2A, 2B and 2C, only the cross section is shown, and the configuration existing in the depth direction is not shown.

The lighting fixture 1 is an embedded lighting fixture such as a downlight that illuminates light downward (floor, wall, etc.) by being embedded and arranged in a mounted portion such as the ceiling of a building. In the present embodiment, when the lighting fixture 1 is used as a reference, the vertical lower side (floor side) of the lighting fixture 1 is the front side, and the vertical upper side (ceiling side) of the lighting fixture 1 is the back side.

As shown in FIGS. 1 to 2C, the lighting fixture 1 includes a fixture main body 10, a light source 20, a holder 30, an optical member 40, a frame body 50, and an auxiliary reflection member 60. The fixture body 10, the light source 20, the holder 30, the optical member 40, the frame 50, and the auxiliary reflection member 60 are connected by a screw, a locking structure, or the like to be integrated as a lamp unit. The lamp unit is embedded and arranged in a circular opening hole provided in the ceiling.

The luminaire 1 may further include a power supply unit (not shown) that supplies electric power for causing the light source 20 to emit light to the light source 20. The power supply unit is arranged in the vicinity of the lamp unit in the attic, for example, but is not limited to this.

The power supply unit is a power supply box having a power supply circuit that generates electric power for causing the light source 20 to emit light. In the power supply unit, AC power from a commercial power source is converted into DC power by a power supply circuit. The power supply circuit is composed of a printed circuit board and a plurality of electronic components mounted on the printed circuit board. The power supply circuit is housed in, for example, a metal or resin case. As shown in FIG. 3, the DC power generated by the power supply circuit is supplied to the light source 20 of the lamp unit via the plurality of electric wires 2. FIG. 3 is a diagram showing a state in which a plurality of electric wires 2 are connected to the lighting fixture 1 according to the embodiment. In FIG. 3, the mounting spring 51 is omitted.

As shown in FIG. 3, in the present embodiment, there are a plurality of electric wires 2. Specifically, the plurality of electric wires 2 include a pair of first electric wires 2a and second electric wires 2b for supplying electric power for supplying electric power to the light source 20, and a third electric wire 2c for grounding. The first electric wire 2a, the second electric wire 2b, and the third electric wire 2c are, for example, lead wires, and are composed of a conductive core wire made of copper or the like and an insulating resin coating covering the core wire.

In the present embodiment, DC power is supplied to the light source 20 via the first electric wire 2a and the second electric wire 2b. As an example, the first electric wire 2a is a power supply line on the high voltage side, and the second electric wire 2b is a power supply line on the low voltage side. Further, the third electric wire 2c is a ground wire and is in contact with the instrument main body 10. As a result, the instrument main body 10 is protected and grounded via the third electric wire 2c.

Hereinafter, each component of the lamp unit of the lighting fixture 1 will be described with reference to FIGS. 1 to 3 with reference to FIGS. 4 to 8. 4 to 8 are views for explaining a light source mounting structure of the lighting fixture 1 including the fixture main body 10, the light source 20, and the holder 30. FIG. 4 is a perspective view of the light source mounting structure when viewed from the back side, and FIG. 5 is a perspective view of the light source mounting structure when viewed from the front side. FIG. 6 is an exploded perspective view of the light source mounting structure when viewed from the back side, and FIG. 7 is an exploded perspective view of the light source mounting structure when viewed from the front side. FIG. 8 is a cross-sectional view of the light source mounting structure taken along the line VIII-VIII of FIG. In addition, in FIG. 8, only the cross section is shown, and the configuration existing in the depth direction is not shown.

[Instrument body]
The fixture body 10 is the main body of the lighting fixture 1. As shown in FIGS. 1 to 8, the fixture main body 10 functions as a base portion (base) on which the light source 20 is arranged. Specifically, the instrument body 10 has an arrangement surface 10a on which the light source 20 is arranged, and the light source 20 is arranged on the arrangement surface 10a of the instrument body 10 and attached to the instrument body 10. That is, the arrangement surface 10a on which the light source 20 is arranged is a mounting surface on which the light source 20 is attached.

The appliance body 10 also functions as a heat sink that dissipates heat generated by the light source 20. Therefore, it is preferable that the instrument main body 10 is made of a material having high thermal conductivity such as a metal material. The heat generated by the light source 20 is conducted to the instrument main body 10 and dissipated to the outside air. In the present embodiment, the fixture body 10 is an outer member of the lighting fixture 1, and the outer surface of the fixture main body 10 constitutes the outer surface of the lighting fixture 1.

The instrument body 10 has, for example, a substantially bottomed cylindrical shape, and can be formed by, for example, pressing a metal plate such as an aluminum alloy plate. The instrument body 10 may be made of die-cast aluminum alloy or the like, instead of being made of sheet metal by press working.

The instrument main body 10 has a through hole 11 provided at a position overlapping the electric wire insertion hole 140 of the holder 30 when the arrangement surface 10a is viewed in a plan view (see FIG. 4). With this configuration, as shown in FIG. 3, the electric wire 2 can be inserted into the electric wire insertion hole 140 of the holder 30 from the outside of the luminaire 1. Specifically, the electric wire 2 can be inserted into the electric wire insertion hole 140 of the holder 30 arranged inside the instrument main body 10 from the outer surface side of the instrument main body 10. As a result, the wiring work of the electric wire 2 can be easily performed. Moreover, by inserting the electric wire 2 from the outside of the luminaire 1, it is possible to prevent the electric wire 2 from being bitten by the internal member of the luminaire 1, and the electric wire 2 is the light of the light source 20. It is possible to avoid becoming a shadow of.

Although the details will be described later, the tubular portion 150 of the holder 30 having the electric wire insertion hole 140 is inserted into the through hole 11 of the instrument main body 10 from the inside to the outside of the instrument main body 10. With this configuration, when the wire 2 is connected, the tubular portion 150 guides the wire 2, so that the wire 2 can be easily inserted into the wire insertion hole 140. As a result, the wiring work of the electric wire 2 can be performed more easily.

Further, as shown in FIGS. 6 and 7, the instrument body 10 has three screw holes 12a for screwing the holder 30 to the instrument body 10 and screwing the frame 50 to the instrument body 10. Two screw holes 12b are formed. The screw holes 12a and 12b are through holes, and as shown in FIG. 1, screws 71 and 72 are inserted into the screw holes 12a and 12b, respectively.

As shown in FIG. 7, the instrument body 10 has a protrusion 13 and a pair of protrusions 14. The protrusion 13 and the pair of protrusions 14 are formed so as to protrude from the inner surface (front side surface) of the instrument main body 10 toward the light source 20 side. When the instrument body 10 is formed by press working, the protrusion 13 and the pair of protrusions 14 can be formed by press working such as deep drawing.

The protruding portion 13 is formed in a substantially central portion of the instrument main body 10. The upper surface of the protrusion 13 is an arrangement surface 10a on which the light source 20 is arranged, and is planar. The pair of protrusions 14 are formed so as to sandwich the protrusions 13. That is, the protrusions 13 are formed between the pair of protrusions 14. When the light source 20 is arranged on the instrument body 10, the protrusion 13 and the pair of protrusions 14 support the light source 20.

In the present embodiment, the arrangement surface 10a is a flat surface, but the surface is not limited to this, and may be a curved surface or the like. Further, the arrangement surface 10a is the upper surface of the protruding portion 13, but is not limited to this, and may be the bottom surface of the instrument main body 10 in which the protruding portion 13 is not formed, or may be formed on the instrument main body 10. It may be the bottom surface of a recess or the like.

[light source]
The light source 20 emits light that becomes the illumination light of the luminaire 1. In the present embodiment, the light source 20 is an LED light source having an LED, and emits white light, for example.

As shown in FIGS. 2A, 2B and 7, the light source 20 is configured as a light source module including a substrate (light source substrate) 21 and a light emitting unit 22. In the present embodiment, the light source 20 is an LED module having a COB (Chip On Board) structure in which an LED is directly mounted on a substrate 21.

The board 21 is a mounting board for mounting the LED. The substrate 21 is, for example, a ceramic substrate, a resin substrate, a metal base substrate, or the like. As shown in FIG. 7, on the substrate 21, a pair of first power supply terminals 21a and second power supply terminals 21b for receiving DC power for causing the LEDs to emit light from the outside, and for electrically connecting the LEDs to each other. A predetermined pattern of metal wiring (not shown) is formed. In the present embodiment, the substrate 21 has a rectangular shape, but the substrate 21 is not limited to this.

The light emitting unit 22 has a plurality of LEDs mounted on the substrate 21 and a sealing member for sealing the plurality of LEDs.

The LED is an example of a light emitting element, and in the present embodiment, it is a bare chip that emits visible light of a single color. The LED is, for example, a blue LED chip that emits blue light when energized. For example, a plurality of LEDs are arranged in a matrix on a substrate. It is sufficient that at least one LED is arranged.

As the sealing member, for example, a translucent resin is used. The sealing member in the present embodiment contains a phosphor as a wavelength conversion material for wavelength conversion of light from an LED. The sealing member is, for example, a phosphor-containing resin in which a phosphor is dispersed in a silicone resin. As the phosphor particles, when the LED is a blue LED chip that emits blue light, for example, a YAG-based yellow phosphor can be used in order to obtain white light.

In the present embodiment, the sealing member is formed so as to have a circular shape in a plan view so as to collectively seal all the LEDs. The outer shape of the sealing member defines the outer shape of the light emitting unit 22. Therefore, the shape of the light emitting unit 22 in a plan view is also circular. The sealing member may collectively seal the LEDs so as to have a shape other than a circle (for example, a rectangular shape). Further, as the sealing member, instead of sealing all the LEDs at once, a plurality of LEDs may be sealed in a line for each row, or each LED may be individually sealed one by one. good.

As shown in FIGS. 2A and 2B, the light source 20 configured in this way is held by the holder 30 in the instrument main body 10. In the present embodiment, the light source 20 is arranged on the arrangement surface 10a of the instrument main body 10 and fixed to the instrument main body 10. Specifically, the light source 20 is arranged on the protrusion 13 by placing the substrate 21 on the upper surface (arrangement surface 10a) of the protrusion 13. At this time, the light source 20 is also arranged on the upper surface of the pair of protrusions 14.

A heat conductive member such as a heat conductive sheet or grease may be inserted between the light source 20 and the arrangement surface 10 a of the instrument main body 10. Specifically, a heat conductive member is inserted between the substrate 21 of the light source 20 and the arrangement surface 10a of the instrument main body 10.

[holder]
The holder 30 is a member for fixing the light source 20 to the instrument main body 10. Therefore, the light source 20 is fixed to the instrument main body 10 by the holder 30. Specifically, the light source 20 is fixed to the fixture body 10 by attaching the holder 30 to the fixture body 10. More specifically, as shown in FIGS. 2A and 2B, the holder 30 is arranged on the light emitting side of the light source 20, and is located between the substrate 21 of the light source 20, a part of the holder 30, and the fixture body 10. The light source 20 can be fixed to the instrument main body 10 by sandwiching the light source 20.

Further, the holder 30 has a reflecting unit (reflector) 180 that reflects the light from the light source 20. That is, the holder 30 is a reflector-integrated light source fixing holder integrally configured with the reflector, has a function of fixing the light source 20 to the instrument main body 10, and has a function of reflecting the light emitted from the light source 20. Has. As a result, the light source 20 can be fixed and the reflector can be attached to the instrument main body 10 at the same time by simply attaching the holder 30 to the instrument main body 10. Therefore, since it is not necessary to separately attach the reflector to the holder 30, the assembly work of the lighting fixture 1 can be simplified.

The detailed configuration of the holder 30 will be described later.

[Optical member]
The optical member 40 is a translucent member having translucency, and transmits light emitted from the light source 20. As shown in FIGS. 2A to 2C, the optical member 40 is arranged so as to cover the light source 20. In the present embodiment, the optical member 40 is arranged so as to cover the holder 30 arranged on the light emitting side of the light source 20. Therefore, the light emitted from the light source 20 that travels without being reflected by the reflecting portion 180 of the holder 30 is incident on the optical member 40, and the light emitted from the light source 20 is incident on the reflecting portion 180 of the holder 30. The reflected light is incident.

The optical member 40 may have a light distribution control function for controlling the light distribution of the light from the light source 20. In the present embodiment, the optical member 40 has a lens function. Specifically, the optical member 40 is a Fresnel lens and has a function of condensing the light of the light source 20. Further, a plurality of irregularities are formed on the surface of the optical member 40 on the light emitting side, and the optical member 40 also has a light diffusing function. As a result, it is possible to scatter the light transmitted through the optical member 40 and improve the uniformity of the light emitted from the optical member 40 (in the present embodiment, the illumination light of the lighting fixture 1).

The optical member 40 is made of a translucent material having translucency. Specifically, the optical member 40 is made of a transparent resin material such as acrylic or polycarbonate, or a glass material.

The optical member 40 may have only the lens function or only the light diffusing function among the lens function and the light diffusing function. Further, the light diffusing function is not limited to the concave-convex structure, and may be realized by dispersing the light diffusing material inside the optical member 40, or by forming a milky white diffusing film on the surface of the optical member 40. You may. Alternatively, the optical member 40 may be a translucent panel having a constant plate thickness without having a light distribution control function of a lens function and a light diffusion function. In this case, the translucent panel may be a flat plate-shaped flat panel or a curved curved panel.

[Frame body]
As shown in FIGS. 2A to 2C, the frame body 50 is a cylindrical frame member through which the light emitted from the optical member 40 passes. The light of the light source 20 transmitted through the optical member 40 passes through the frame body 50 and is emitted to the outside of the luminaire 1.

In the present embodiment, the frame body 50 is a substantially cylindrical frame body. The outer diameter of the frame body 50 is about the same as the outer diameter of the instrument main body 10. The frame 50 can be formed of, for example, a metal material such as aluminum or a hard resin material made of polybutylene terephthalate (PBT) or the like. The frame body 50 is fixed to the instrument body 10 by screws 72.

The frame 50 is an outer member of the lighting fixture 1, and the outer surface of the frame 50 constitutes the outer surface of the lighting fixture 1. The frame body 50 has a flange portion 50a that projects outward in the radial direction. The flange portion 50a is provided at the edge of the opening on the light emitting side (floor side) of the frame body 50.

As shown in FIG. 1, a mounting spring 51 is mounted on the outer surface of the frame body 50. In this embodiment, two mounting springs 51 are mounted on the outer peripheral surface of the frame body 50. The mounting spring 51 is an elastic member for fixing the lighting fixture 1 (lamp unit) to a mounted portion such as a ceiling, and has, for example, a leaf spring structure. The mounting spring 51 is formed of, for example, a long metal plate.

When arranging the lighting fixture 1 (lamp unit) in the opening of the ceiling, the flange portion 50a of the frame body 50 is locked to the ceiling surface, and between the side surface of the frame body 50 and the inner side surface of the opening of the ceiling. The mounting spring 51 is elastically deformed and the lighting fixture 1 is fixed to the opening of the ceiling by utilizing the spring restoring force of the mounting spring 51.

[Auxiliary reflective member]
The auxiliary reflection member 60 is an auxiliary reflection plate arranged inside the frame body 50. The auxiliary reflection member 60 is a frame body having a substantially cylindrical shape. Specifically, as shown in FIGS. 2A to 2C, the auxiliary reflection member 60 is a cup-shaped frame formed so that the inner diameter gradually increases. The auxiliary reflection member 60 is held by the frame body 50.

In the present embodiment, the auxiliary reflection member 60 is made of a metal material such as aluminum or iron. For example, the auxiliary reflection member 60 can be manufactured, for example, by pressing a metal plate or the like. The auxiliary reflection member 60 is not limited to the metal material, and may be formed of a hard resin material such as PBT. In this case, the auxiliary reflective member 60 may be a resin molded product made of a hard white resin material, or may be a resin molded product on which a reflective film such as a metal film is formed.

[Detailed structure of holder]
Next, the detailed structure of the holder 30 will be described with reference to FIGS. 1 to 8 with reference to FIGS. 9 to 15. FIG. 9 is a perspective view of the holder 30 according to the embodiment, and FIG. 10 is an exploded perspective view of the holder 30. 11 is a perspective view showing a state in which the second component 102 is removed in the holder 30 shown in FIG. 10, and FIG. 12 is a perspective view showing a state in which the second component 102 is removed, and FIG. 12 shows the second component 102 and the third component 103 in the holder 30 shown in FIG. It is a perspective view which shows the state which was removed. FIG. 13 is a cross-sectional view of the light source mounting structure when cut in a cross section passing through the holding portion 160 of the holder 30 in FIG. 14A and 14B are perspective views of a plurality of conductive plates 200 (first conductive plate 200a, second conductive plate 200b, third conductive plate 200c) in the holder 30, and FIG. 15 is a perspective view of the plurality of conductive plates. It is a top view which shows the arrangement example of 200. In FIG. 15, the outer shape of the holder 30 is schematically shown. Further, in FIG. 15, the area of the storage portion 130 is hatched for convenience.

The holder 30 in the present embodiment not only functions as a holding member for holding the light source 20 on the instrument main body 10, but also functions as a connecting member for electrically connecting the plurality of electric wires 2 and the light source 20.

As shown in FIGS. 9 and 10, the holder 30 has a holder main body 100 and a plurality of conductive plates 200 electrically connected to the light source 20.

The holder body 100 is an insulating member made of an insulating resin material or the like. The conductive plate 200 is a conductive member made of a conductive material such as a metal material. In the present embodiment, the plurality of conductive plates 200 include a first conductive plate 200a, a second conductive plate 200b, and a third conductive plate. 200c is included.

First, the configuration of the holder body 100 will be described. As shown in FIGS. 9 to 12, the holder main body 100 has a frame-like shape as a whole, and has an opening 110 through which light emitted from the light source 20 passes. In the present embodiment, the opening shape of the opening 110 is circular, but the opening shape is not limited to this.

Further, the holder main body 100 includes a positioning unit 120 for positioning the light source 20 with respect to the instrument main body 10, a storage unit 130 for accommodating a plurality of conductive plates 200, and a plurality of one-to-one connections with the plurality of conductive plates 200. Each of the electric wires 2 has a plurality of electric wire insertion holes 140 through which the electric wires 2 are inserted. Since each electric wire 2 is connected to each conductive plate 200, the electric wire 2 connected to each conductive plate 200 is inserted into each electric wire insertion hole 140.

The positioning portion 120 of the holder body 100 regulates the horizontal movement of the light source 20 with respect to the arrangement surface 10a. Specifically, the positioning unit 120 holds the light source 20 so that the substrate 21 of the light source 20 comes into contact with the positioning unit 120 so that the light source 20 does not move horizontally with respect to the arrangement surface 10a. As a result, the light source 20 can be easily fixed at a predetermined position of the instrument main body 10. Therefore, the light source 20 and the instrument main body 10 can be easily assembled.

In the present embodiment, the positioning unit 120 is a positioning wall that stands on the back side of the holder body 100. The positioning portion 120 (positioning wall) is formed in a plate shape and is in line contact with the instrument main body 10. That is, the tip surface of the positioning portion 120 is in line contact with the arrangement surface 10a of the instrument main body 10. As a result, it is possible to prevent insects and dust from entering the periphery of the light source 20, and thus it is possible to prevent the shadow of black spots from being generated in the light of the light source 20 due to dead insects and dust. In the present embodiment, the tip portion of the positioning portion 120 is formed in a tapered shape.

Further, in the holder 30, the positioning portion 120 (positioning wall) is formed in a frame shape so as to surround the opening 110. Further, as shown in FIGS. 2B and 8, the positioning unit 120 is formed so as to surround the substrate 21 of the light source 20 with respect to the light source 20. As a result, it is possible to further suppress the invasion of insects and dust around the light source 20.

In the present embodiment, since the plan view shape of the substrate 21 is rectangular, the positioning portion 120 is formed in a rectangular frame shape. Therefore, in the light source 20, the four end faces (four sides) of the rectangular substrate 21 abut on the four inner surfaces of the positioning portion 120, so that the movement in the horizontal direction (vertical direction and horizontal direction) is restricted. become. There may be a slight gap (clearance) between the four end faces of the substrate 21 and the four inner faces of the positioning portion 120.

As shown in FIGS. 10 and 12, the storage portion 130 of the holder body 100 houses the first conductive plate 200a, the second conductive plate 200b, and the third conductive plate 200c, and also stores the first conductive plate 200a and the second conductive plate. It is configured to hold the plate 200b and the third conductive plate 200c. The storage unit 130 also functions as an electric wire storage unit that stores a part of the plurality of electric wires 200. The storage unit 130 is provided on the outside of the positioning unit 120.

The holder body 100 has a storage wall 130a that defines a storage space for the storage unit 130. The storage wall 130a stands on the back side of the holder body 100. Specifically, the storage wall 130a is formed in a plate shape like the positioning portion 120, and is in line contact with the instrument main body 10. The end surface of the storage wall 130a on the instrument body 10 side and the end surface of the positioning portion 120 (positioning wall) on the instrument body 10 side are flush with each other. As a result, it is possible to further suppress the invasion of insects and dust around the light source 20.

In the present embodiment, as shown in FIG. 15, the storage unit 130 is located outside the first storage unit 131, which is a storage space adjacent to the positioning unit 120, and the instrument main body. It has a second storage portion 132 that protrudes in a substantially horizontal direction with respect to the arrangement surface 10a of 10. The second storage portion 132 is provided at a corner of the rectangular frame-shaped positioning portion 120.

As shown in FIGS. 9 and 10, the plurality of electric wire insertion holes 140 are provided corresponding to the number of the plurality of electric wires 2. In the present embodiment, as shown in FIG. 3, three electric wires 2 of the first electric wire 2a, the second electric wire 2b, and the third electric wire 2c are used, so that the first electric wire is inserted into the holder main body 100. Three insertion holes, a hole 140a, a second electric wire insertion hole 140b, and a third electric wire insertion hole 140c, are provided.

The holder main body 100 has a plurality of tubular portions 150 provided with wire insertion holes 140 for each of the plurality of electric wires 2. That is, the plurality of tubular portions 150 are provided in the holder main body 100.

As shown in FIGS. 1 and 4, the plurality of tubular portions 150 project from the back surface of the instrument main body 10. As a result, when the electric wire 2 is inserted into the tubular portion 150, the electric wire 2 is guided by the tubular portion 150, so that the electric wire 2 can be easily inserted into the electric wire insertion hole 140. Therefore, the wiring work of the electric wire 2 can be easily performed.

In the present embodiment, the plurality of tubular portions 150 project vertically from the back surface of the instrument main body 10 through the through holes 11 of the instrument main body 10. As a result, it is possible to easily realize a structure in which the tubular portion 150 projects to the back side of the instrument main body 10, and the electric wire 2 can be connected by inserting the electric wire 2 into the tubular portion 150 from the back side of the instrument main body 10. can. Therefore, the wiring work of the electric wire 2 to the holder 30 can be easily performed.

As shown in FIGS. 1 and 4, the through hole 11 of the instrument main body 10 is composed of one opening surrounding the plurality of tubular portions 150. That is, the through hole 11 has one opening common to the plurality of tubular portions 150. With this configuration, even when a plurality of cylinders 150 are provided in the holder 30, when the holder 30 is assembled to the instrument body 10, the plurality of cylinders 150 are easily projected on the back side of the instrument body 10. be able to. That is, even if the structure is such that a plurality of tubular portions 150 are projected from the through holes 11 of the instrument main body 10, the assembly work of the holder 30 and the instrument main body 10 can be easily performed.

The plurality of tubular portions 150 include a first tubular portion 150a having a first electric wire insertion hole 140a, a second tubular portion 150b having a second electric wire insertion hole 140b, and a third tubular portion having a third electric wire insertion hole 140c. 150c and so on are included. A first electric wire 2a for power supply is inserted into the first cylinder portion 150a, a second electric wire 2b for power supply is inserted into the second cylinder portion 150b, and a first electric wire for grounding is inserted into the third cylinder portion 150c. 3 The electric wire 2c is inserted.

In the present embodiment, of the first cylinder portion 150a, the second cylinder portion 150b, and the third cylinder portion 150c, the first cylinder portion 150a and the second cylinder portion 150b penetrate through the through hole 11 (see FIG. 2C). However, the third cylinder portion 150c does not protrude from the through hole 11, and the end surface of the third cylinder portion 150c is flush with the back surface of the instrument main body 10 (see FIG. 2B).

Further, the plurality of tubular portions 150 are arranged in a row. In the present embodiment, the three cylinder portions 150 of the first cylinder portion 150a, the second cylinder portion 150b, and the third cylinder portion 150c are arranged in a row. Specifically, the third cylinder portion 150c through which the third electric wire 2c for grounding is inserted is inserted, and the first cylinder portion 150a through which the first electric wire 2a for power supply is inserted and the second electric wire 2b for power supply are inserted. It is located between the second cylinder portion 150b and the second cylinder portion 150b. As an example, the distance between two adjacent cylinders 150 is 5 mm.

Further, the heights of the two adjacent cylinders 150 among the plurality of cylinders 150 are different. In the present embodiment, the height of the third cylinder portion 150c arranged in the middle of the three cylinder portions 150 is the height of the first cylinder portion 150a arranged on both sides of the third cylinder portion 150c and the first cylinder portion 150a. It is lower than the height of the two-cylinder portion 150b. The height of the first cylinder portion 150a and the height of the second cylinder portion 150b are the same.

As shown in FIGS. 9 and 10, the holder main body 100 further has a holding portion 160 that presses the light source 20 toward the instrument main body 10. As shown in FIG. 13, the pressing portion 160 presses the surface of the substrate 21 of the light source 20.

The pressing portion 160 restricts the light source 20 from moving in the direction perpendicular to the arrangement surface 10a (the direction perpendicular to the substrate 21). Specifically, the holding portion 160 has a shape that can be elastically deformed, and when the light source 20 is fixed to the instrument main body 10 by the holder 30, the light source 20 receives an urging force from the holding portion 160. .. That is, the light source 20 is applied with a pressing force toward the instrument main body 10 by the elastic restoring force of the pressing portion 160. As a result, the light source 20 is held between the holder 30 and the instrument main body 10 so as not to move in the vertical direction of the substrate 21. By providing the holding portion 160 in the holder 30 in this way, the light source 20 can be more easily fixed at a predetermined position of the instrument main body 10.

As shown in FIGS. 9 to 11, the holder body 100 is provided with a holding claw 170 for holding the optical member 40. The optical member 40 is held by the holder body 100 by engaging the end portion of the optical member 40 with the holding claw 170.

As shown in FIG. 10, in the present embodiment, the holder main body 100 is composed of three parts, a first part 101, a second part 102, and a third part 103.

The first component 101 is a resin body that is a main component of the holder body 100. The first component 101 has an opening 110, a positioning portion 120, and a storage portion 130. That is, the first component 101 is provided with an opening 110, a positioning portion 120, and a storage portion 130.

The second component 102 and the third component 103 are resin covers that cover the storage portion 130 of the first component 101. Specifically, the third component 103 covers the entire storage portion 130 of the first component 101. On the other hand, the second component 102 covers only the second storage section 132 of the storage section 130 of the first component 101 via the third component 103.

The second component 102 has a plurality of electric wire insertion holes 140. That is, the second component 102 is provided with a plurality of electric wire insertion holes 140. Specifically, the second component 102 has a plurality of tubular portions 150 each provided with an electric wire insertion hole 140. In the present embodiment, the second component 102 includes a first tubular portion 150a having a first electric wire insertion hole 140a, a second tubular portion 150b having a second electric wire insertion hole 140b, and a third electric wire insertion hole 140c. A third tubular portion 150c to be provided is provided.

The third component 103 has a holding portion 160. That is, the third component 103 is provided with a holding portion 160. The third component 103 is provided with a plurality of (three in the present embodiment) insertion holes corresponding to each of the plurality of electric wire insertion holes 140. Specifically, as shown in FIGS. 10 and 11, the third component 103 has a first insertion hole 103a communicating with the first electric wire insertion hole 140a and a second insertion hole communicating with the second electric wire insertion hole 140b. It has a 103b and a third insertion hole 103c that communicates with the third electric wire insertion hole 140c. The plurality of electric wires 2 inserted into each of the plurality of tubular portions 150 are connected to each of the plurality of conductive plates 200 housed in the accommodating portion 130 through the insertion holes of the third component 103.

Further, it is preferable that the first component 101 is provided with a release hole for disconnecting the connection between each conductive plate 200 and each electric wire 2. In this case, the connection state between each conductive plate 200 and each electric wire 2 can be released by inserting a jig into the release hole. As a result, the electric wire 2 can be pulled out even after the wire is connected to the conductive plate 200.

The release hole provided in the first component 101 may be covered by the second component 102 or the third component 103. As a result, the release hole cannot be operated unless the second component 102 or the third component 103 is removed from the first component 101, so that the user carelessly pulls out the electric wire 2 at the installation site of the lighting fixture 1 or the like. It can be suppressed. On the other hand, since the manufacturer of the lighting fixture 1 can operate the release hole by removing the second component 102 or the third component 103 from the first component 101, the connection state of the electric wire 2 can be easily released.

As shown in FIGS. 2A and 2B, the holder body 100 has a reflecting portion 180 that reflects light that has passed through the opening 110. The reflecting unit 180 controls the light distribution of the light source 20 by emitting light from the light source 20 and reflecting the light passing through the opening 110. Specifically, the reflecting unit 180 reflects the light from the light source 20 toward the optical member 40.

In the present embodiment, the reflective unit 180 is a part of the first component 101. In this case, for example, by forming the entire first component 101 with a white resin material, the surface of the reflective portion 180 can be made a reflective surface.

The first component 101, the second component 102, and the third component 103 are made of, for example, a hard resin material made of PBT or the like. Further, at least the second component 102 of the first component 101, the second component 102 and the third component 103 may be made of a flame-retardant resin material.

In the present embodiment, the first component 101, the second component 102, and the third component 103 are all made of the same base resin material, but their performances are different. Specifically, since the first component 101 has a reflective portion 180, it is made of a resin material having excellent reflective performance. Further, the second component 102 is made of a resin material having high flame retardancy (autolysis). Further, the third component 103 is made of a resin material having excellent electrical insulation performance. In the present embodiment, the first component 101 and the second component 102 are made of the same resin material. Therefore, the first component 101 and the second component 102 are excellent in reflection performance and electrical insulation performance. On the other hand, the second component 102 is specialized in flame retardancy, and the flame retardancy of the second component 102 is higher than that of the first component 101 and the third component 103. As an example, the flame retardant grade of the second component 102 is V-0, and the flame retardant grade of the first component 101 and the third component 103 is HB. By configuring the holder body 100 with a plurality of parts in this way, it is possible to select the right resin in the right place.

The first component 101 and the third component 103 are fixed to the instrument body 10 by screws 71. Further, the second component 102 is fixed to the first component 101 by engaging the claw portion provided on the second component 102 with the first component 101.

Next, a plurality of conductive plates 200 housed in the holder main body 100 will be described. In the present embodiment, as the plurality of conductive plates 200 (terminal plates), three conductive plates of a first conductive plate 200a, a second conductive plate 200b, and a third conductive plate 200c are used.

In the present embodiment, the first conductive plate 200a is connected to the first electric wire 2a for power supply, the second conductive plate 200b is connected to the second electric wire 2b for power supply, and the third conductive plate 200c is connected to the second electric wire 2b. Is connected to the third electric wire 2c for grounding. Therefore, the first conductive plate 200a and the second conductive plate 200b are conductive plates for feeding, and the third conductive plate 200c is a conductive plate for grounding. As described above, by providing the third conductive plate 200c for grounding other than the first conductive plate 200a for feeding and the second conductive plate 200b, the protective grounding of the lighting fixture 1 can be easily realized.

The first conductive plate 200a, the second conductive plate 200b, and the third conductive plate 200c are configured by bending and deforming a metal plate such as a copper alloy. The thickness of the metal plates constituting the first conductive plate 200a, the second conductive plate 200b, and the third conductive plate 200c is, for example, 0.25 mm.

The first conductive plate 200a includes an electric wire connection terminal portion 210a to which the first electric wire 2a is connected, a light source connection terminal portion 220a connected to the first power supply terminal 21a of the light source 20, an electric wire connection terminal portion 210a, and a light source connection terminal. It has a connecting portion 230a that connects the portions 220a. The electric wire connection terminal portion 210a has a quick connection terminal structure, and sandwiches the core wire of the first electric wire 2a inserted into the electric wire connection terminal portion 210a. Specifically, the electric wire connection terminal portion 210a is elastically deformed from the back surface to the front surface of the instrument main body 10 in the accommodating portion 130 (electric wire accommodating portion) for accommodating a part of the first electric wire 2a, so that the first electric wire is formed. Contact with 2a.

The electric wire connection terminal portion 210a is located between the instrument main body 10 and the reflective portion 180 (reflector) of the holder 30 together with the accommodating portion 130 (electric wire accommodating portion) for accommodating a part of the first electric wire 2a. Further, the light source connection terminal portion 220a has a contact portion that contacts the first power feeding terminal 21a. The connecting portion 230a has an extending portion 231a extending in a substantially horizontal direction with respect to the arrangement surface 10a of the instrument main body 10.

In the present embodiment, the connecting portion 230a of the first conductive plate 200a has a bent portion 232a in which a part of the connecting portion 230a is bent so that the cross-sectional shape is substantially U-shaped.

The bent portion 232a is formed at the end portion of the connecting portion 230a on the wire connecting terminal portion 210a side. The bent portion 232a includes a first bent plate 251 bent from the extending portion 231a and located on the light source connecting terminal portion 220a side, a second bent plate 252 bent from the root of the electric wire connecting terminal portion 210a, and a first bending portion. It has a third bending plate 253 that connects the plate 251 and the second bending plate 252.

Further, the connecting portion 230a of the first conductive plate 200a has a bent piece 233a in which a part of the connecting portion 230a is bent. The bent piece 233a is press-fitted into a part of the holder main body 100. By press-fitting the bent piece 233a of the first conductive plate 200a into the holder main body 100 in this way, it is possible to suppress the misalignment of the first conductive plate 200a with respect to the holder main body 100.

Similar to the first conductive plate 200a, the second conductive plate 200b includes a wire connection terminal portion 210b to which the second electric wire 2b is connected, and a light source connection terminal portion 220b connected to the second power feeding terminal 21b of the light source 20. It has a connecting portion 230b that connects the electric wire connecting terminal portion 210b and the light source connecting terminal portion 220b. The electric wire connection terminal portion 210b has a quick connection terminal structure, and sandwiches the core wire of the second electric wire 2b inserted into the electric wire connection terminal portion 210b. Specifically, the electric wire connection terminal portion 210b is elastically deformed from the back surface to the front surface of the instrument main body 10 in the accommodating portion 130 (electric wire accommodating portion) for accommodating a part of the second electric wire 2b, thereby causing the second electric wire. Contact with 2b.

The electric wire connection terminal portion 210b is located between the instrument main body 10 and the reflective portion 180 (reflector) of the holder 30 together with the accommodating portion 130 (electric wire accommodating portion) for accommodating a part of the second electric wire 2b. Further, the light source connection terminal portion 220b has a contact portion that contacts the second power feeding terminal 21b. The connecting portion 230b has an extending portion 231b extending in a substantially horizontal direction with respect to the arrangement surface 10a of the instrument main body 10.

Similar to the first conductive plate 200a, the connecting portion 230b of the second conductive plate 200b also has a bent portion 232b in which a part of the connecting portion 230b is bent so that the cross-sectional shape is substantially U-shaped.

Also in the second conductive plate 200b, the bent portion 232b is formed at the end portion of the connecting portion 230b on the wire connecting terminal portion 210b side. The bent portion 232b of the second conductive plate 200b is bent from the extending portion 231b and is connected to the first bent plate 251 located on the light source connection terminal portion 220b side in the same manner as the bent portion 232a of the first conductive plate 200a. It has a second bending plate 252 bent from the root of the terminal portion 210b, and a third bending plate 253 connecting the first bending plate 251 and the second bending plate 252.

Further, also in the second conductive plate 200b, the connecting portion 230b has a bent piece 233b in which a part of the connecting portion 230b is bent. The bent piece 233b is press-fitted into a part of the holder main body 100. In this way, by press-fitting the bent piece 233b of the second conductive plate 200b into the holder main body 100, it is possible to suppress the misalignment of the second conductive plate 200b with respect to the holder main body 100.

By forming the bent portions 232a and 232b on the first conductive plate 200a and the second conductive plate 200b in this way, the positions of the first conductive plate 200a and the second conductive plate 200b with respect to the holder body 100 (first component 101). The deviation can be absorbed by the bent portions 232a and 232b. Further, if the bent portions 232a and 232b are not formed, the first conductive plate 200a is caused by the elastic deformation of the contact spring when the light source connection terminal portions 220a and 220b are in pressure contact with the first feeding terminal 21a and the second feeding terminal 21b. And the second conductive plate 200b may rotate around the fixed portion (in this embodiment, the bent pieces 233a and 233b) with the holder main body 100, but by forming the bent portions 232a and 232b, the light source is used. It is possible to reduce the influence of elastic deformation of the connection terminal portions 220a and 220b.

As shown in FIG. 15, the first conductive plate 200a and the second conductive plate 200b configured in this way are housed in the storage portion 130 of the holder 30 in a symmetrical positional relationship. Specifically, the extending portion 231a of the first conductive plate 200a and the extending portion 231b of the second conductive plate 200b are housed in the first storage portion 131 of the storage portion 130 of the holder main body 100. Further, the electric wire connection terminal portion 210a of the first conductive plate 200a and the electric wire connection terminal portion 210b of the second conductive plate 200b are housed in the second storage portion 132 of the storage portion 130 of the holder main body 100. By arranging the electric wire connection terminal portions 210a and 210b in the second accommodating portion 132 protruding outward from the first accommodating portion 131 in this way, the wiring work of the first electric wire 2a and the second electric wire 2b can be easily performed. be able to.

The storage portion 130 of the holder 30 is contained within the projected area of the object composed of the instrument main body 10 and the reflection portion 180. The entire conductive plate 200 housed in the storage portion 130 is contained within the projected area of the object composed of the instrument main body 10 and the reflection portion 180.

As shown in FIG. 16, the holder body 100 has a support wall 190 that supports each of the bent portion 232a of the first conductive plate 200a and the bent portion 232b of the second conductive plate 200b. The support wall 190 that supports the bent portion 232a of the first conductive plate 200a supports the side surface of the second bent plate 252 of the bent portion 232a, and the support wall 190 that supports the bent portion 232b of the second conductive plate 200b is bent. The side surface of the second bending plate 252 of the portion 232b is supported. Note that FIG. 16 shows only the support wall 190 that supports the bent portion 232a of the first conductive plate 200a, and does not show the support wall 190 that supports the bent portion 232b of the second conductive plate 200b.

Further, as shown in FIG. 16, in the first conductive plate 200a and the second conductive plate 200b before being incorporated in the holder 30, the degree of bending of the second bending plate 252 is looser than the degree of bending of the first bending plate 251. It is good to have. That is, it is preferable that the inclination angle θ2 of the second bending plate 252 is larger than the inclination angle θ of the first bending plate 251.

Then, in the first conductive plate 200a and the second conductive plate 200b, the distance from the bent piece 233a (or 233b) which is the fixing portion to the holder main body 100 to the second bent plate 252 is set to A, and the bent piece 233a ( Or 233b), where B is the distance from the end of the second bending plate 252 on the wire connection terminal portion 210a side (or wire connection terminal portion 210b side), and the distance from the bent piece 233a (or 233b) to the support wall 190. Is C, it is preferable that the relationship of A <C <B is satisfied before the first conductive plate 200a (or the second conductive plate 200b) is fixed to the holder main body 100. That is, it is preferable that the relationship A <C <B is satisfied before the second bent plate 252 of the first conductive plate 200a and the second conductive plate 200b is supported by the support wall 190.

As a result, even if the first conductive plate 200a and the second conductive plate 200b are inserted in a misaligned manner, the first conductive plate 200a (and the second conductive plate 200b) are incorporated into the holder body 100 as shown in FIG. Later, the second bent plate 252, which has a looser degree of bending, is deformed by being pressed by the support wall 190, and the B dimension (see FIG. 16) of the first conductive plate 200a (and the second conductive plate 200b) is forced. It becomes the same as the C dimension (see FIG. 16) of the holder body 100. As a result, it is possible to absorb the positional deviation of the first conductive plate 200a and the second conductive plate 200b with respect to the holder main body 100 (first component 101).

Although only the first conductive plate 200a is shown in FIG. 17, the same applies to the second conductive plate 200b. Further, as shown in FIG. 17, the first bending plate 251 and the third bending plate 253 are also supported by a part of the holder main body 100.

Returning to FIGS. 14A and 14B, the third conductive plate 200c bends from the electric wire connection terminal portion 210c to which the third electric wire 2c is connected and the electric wire connection terminal portion 210c, and comes into contact with the instrument main body 10. It has a portion 240c. That is, the third conductive plate 200c does not have an extending portion like the first conductive plate 200a and the second conductive plate 200b.

The electric wire connection terminal portion 210c has a quick connection terminal structure, and sandwiches the core wire of the third electric wire 2c inserted into the electric wire connection terminal portion 210c. Specifically, the electric wire connection terminal portion 210c comes into contact with the third electric wire 2c by elastically deforming from the back surface of the instrument main body 10 toward the front surface.

Further, as shown in FIG. 4, the instrument body contact portion 240c comes into contact with the instrument body 10 by being inserted into the through hole 15 provided in the instrument body 10. Specifically, before the instrument body contact portion 240c is inserted into the through hole 15, the plate width of the instrument body contact portion 240c is slightly larger than the opening diameter of the through hole 15 of the instrument body 10. A slit is formed in the contact portion 240c of the instrument body. As a result, the instrument body contact portion 240c is deformed by pushing the instrument body contact portion 240c into the through hole 15 while sliding it on the inner surface of the through hole 15, so that the instrument body contact portion 240c and the inner surface of the through hole 15 come into contact with each other. The instrument body contact portion 240c can be easily pushed into the through hole 15 while ensuring the state.

The third conductive plate 200c is housed in the second storage part 132 of the storage part 130 of the holder main body 100. In the present embodiment, since the third conductive plate 200c does not have an extending portion, as shown in FIG. 15, the third conductive plate 200c is housed only in the second storage portion 132. That is, almost the entire third conductive plate 200c is stored in the second storage portion 132.

As a result, the electric wire connection terminal portion 210a of the first conductive plate 200a, the electric wire connection terminal portion 210b of the second conductive plate 200b, and the electric wire connection terminal portion 210c of the third conductive plate 200c are put together in one place of the second storage portion 132. The first electric wire 2a, the second electric wire 2b, and the third electric wire 2c can be easily connected.

Specifically, the electric wire connection terminal portion 210c of the third conductive plate 200c is located inside the storage wall 130a that defines the storage space of the storage portion 130, and the instrument main body contact portion 240c of the third conductive plate 200c is stored. It is located on the outside of the wall 130a. That is, the third conductive plate 200c is arranged so as to straddle the storage wall 130a.

Further, in the present embodiment, as shown in FIG. 15, the electric wire connection terminal portion 210c of the third conductive plate 200c is the electric wire connection terminal portion 210b of the first conductive plate 200a and the electric wire connection terminal portion of the second conductive plate 200b. It is located between 210b. As a result, the electric wire connection terminal portion 210a to which the first electric wire 2a for power supply is connected and the second electric wire 2b for power supply are connected while the three electric wire connection terminal portions 210a, 210b, and 210c are combined in one place. Since the wire connection terminal portion 210b can be kept away from the wire connection terminal portion 210b, it is possible to suppress the occurrence of electrical problems such as a short circuit.

Further, the electric wire connection terminal portion 210c of the third conductive plate 200c has a vertically long shape and is located on an extension of the diagonal line of the substrate 21 of the light source 20. Further, the light source connection terminal portion 220a of the first conductive plate 200a and the light source connection terminal portion 220b of the second conductive plate 200b are located so as to sandwich the diagonal line thereof. Then, in a plan view, the third conductive plate 200c is arranged so that the electric wire connection terminal portion 210c of the third conductive plate 200c is oriented sideways. Thereby, as in the present embodiment, when the conductive plate 200 is arranged in a plane around the light source 20, the outer shape of the holder 30 can be reduced. This point will be described with reference to FIGS. 18 and 19.

As shown in FIG. 18, when the electric wire connection terminal portion 210c of the third conductive plate 200c has a vertically long shape, the electric wire connection terminal portion 210a of the first conductive plate 200a and the electric wire connection terminal portion 210b of the second conductive plate 200b Similarly, when the third conductive plate 200c is arranged so that the electric wire connection terminal portion 210c is oriented vertically (that is, when the electric wire connecting terminal portion 210c is arranged so that the diagonal direction of the substrate 21 is the longitudinal direction), the holder The minimum diameter d required for 30Y (that is, the distance between the outermost position of the electric wire connection terminal portion 210c arranged on the straight line connecting the center of the light source 20 and the corner of the substrate 21 and the center of the light source 20) becomes large. Will end up.

On the other hand, as shown in FIG. 19, when the electric wire connection terminal portion 210c of the third conductive plate 200c has a vertically long shape, the third conductive plate portion 210c is oriented sideways as in the present embodiment. When the plate 200c is arranged, the minimum diameter d required for the holder 30 can be made smaller than that in the case of FIG. Therefore, it is preferable to arrange the third conductive plate 200c so that the electric wire connection terminal portion 210c is oriented sideways.

When the light source 20 is fixed to the instrument main body 10 by using the holder 30 configured in this way, first, a heat conductive member is arranged on the arrangement surface 10a (upper surface of the protruding portion 13) of the instrument main body 10 and then from above. The light source 20 is arranged. Specifically, the light source 20 is arranged so that the heat conductive member is sandwiched between the substrate 21 of the light source 20 and the protruding portion 13.

After that, the light source 20 is pressed by the holder 30, and the holder 30 is arranged in the instrument body 10 so that the tubular portion 150 of the holder 30 protrudes from the through hole 11 of the instrument body 10. Then, the screw 71 is inserted into the screw hole 12a of the instrument body 10 from the back side of the instrument body 10, and the screw 71 is screwed into the screw hole of the holder 30. As a result, the light source 20 can be fixed in a state of being pressed against the instrument main body 10. At this time, the light source connection terminal 220a of the first conductive plate 200a of the holder 30 is in pressure contact with the first power supply terminal 21a of the light source 20, and the light source connection terminal 220b of the second conductive plate 200b of the holder 30 is the second of the light source 20. 2 Press contact with the power supply terminal 21b.

After that, as shown in FIGS. 20 and 21, the electric wire 2 is inserted into each of the plurality of tubular portions 150 protruding from the through hole 11 of the instrument main body 10, and each electric wire 2 and the conductive plate 200 of the holder 30 are connected. .. 20 is a cross-sectional view of the light source mounting structure on the XX-XX line of FIG. 4, and FIG. 21 shows a state when the inserted electric wire 2 and the conductive plate 200 of the holder 30 are connected in FIG. 21. It is sectional drawing which shows. In addition, in FIG. 20 and FIG. 21, only a cross section is shown.

As shown in FIGS. 20 and 21, the first electric wire 2a is inserted into the first tubular portion 150a, and the tip portion of the first electric wire 2a is connected to the electric wire connection terminal portion 210a of the first conductive plate 200a. Similarly, the second electric wire 2b is inserted into the second tubular portion 150b, the tip portion of the second electric wire 2b is connected to the electric wire connection terminal portion 210b of the second conductive plate 200b, and the third electric wire 2c is connected to the third tubular portion. It is inserted into 150c to connect the tip of the third electric wire 2c to the electric wire connection terminal portion 210c of the third conductive plate 200c.

As a result, the first electric wire 2a and the first feeding terminal 21a of the light source 20 are electrically connected via the first conductive plate 200a, and the second electric wire 2b and the second feeding terminal 21b of the light source 20 are second conductive. It is electrically connected via the plate 200b. Further, the third electric wire 2c is electrically connected to the instrument main body 10 via the third conductive plate 200c.

As described above, in the lighting fixture 1 according to the present embodiment, the holder 30 which is a connecting member for electrically connecting the plurality of electric wires 2 and the light source 20 has a plurality of holders 30 through which each of the plurality of electric wires 2 is inserted. It has a cylinder portion 150 of the above. The plurality of tubular portions 150 project vertically from the back surface of the instrument main body 10, and the heights of the two adjacent tubular portions 150 among the plurality of tubular portions 150 are different.

With this configuration, it is possible to easily perform the wiring work for connecting the plurality of electric wires 2 to the conductive plate 200 housed in the holder 30, and it is possible to prevent the plurality of electric wires 2 from being short-circuited. Hereinafter, this effect will be described with reference to FIGS. 22 and 23, including the background to the present invention. FIG. 22 is a diagram for explaining the holder 30Y of the comparative example, and FIG. 23 is a cross-sectional view of the holder 30Y of the comparative example.

As described above, in the conventional holder 30X shown in FIG. 25, the work of attaching the light source to the instrument main body is complicated, and the wiring work of connecting a plurality of electric wires and the conductive plate housed in the holder 30X is complicated. be.

Therefore, in order to easily perform the wiring work of a plurality of electric wires, as shown in FIG. 22, a plurality of holders 30Y having a plurality of tubular portions 150Y provided with electric wire insertion holes into which the electric wires 2 are inserted are used. A configuration is conceivable in which the tubular portion 150Y of the above is projected in the vertical direction from the back surface of the instrument main body 10. Specifically, in FIG. 22, a plurality of tubular portions 150Y are projected outward from the through hole 11 of the instrument main body 10. As a result, the wiring work between the electric wire 2 and the conductive plate of the holder 30Y can be easily performed only by inserting the electric wire 2 into the electric wire insertion hole of the tubular portion 150Y from the back side of the instrument main body 10.

However, if the plurality of cylinders 150Y project in the vertical direction from the back surface of the instrument body 10, moisture in the air may aggregate or rainwater or the like may invade, and as shown in FIG. 23, the plurality of cylinders may be present. Water W tends to collect between two adjacent cylinders 150Y of the portions 150Y. This is because when the distance between two adjacent cylinders 150Y is less than a few centimeters (for example, less than 1 cm, 5 mm in FIG. 22), water droplets are formed along the outer surface of the two adjacent cylinders 150Y. It is thought that this is because it accumulates.

In this way, when water W accumulates between two adjacent cylinders 150Y, when the heights of the two adjacent cylinders 150Y are the same, as shown by the broken line arrow in FIG. 23. , Water W may get over the open end surface of the tubular portion 150 and infiltrate into the tubular portion 150. As a result, the plurality of electric wires 2 may be short-circuited. Further, when there is a grounding wire in the plurality of electric wires 2, if water enters the tubular portion 150, the power feeding wire 2 may cause a ground fault via the grounding wire.

On the other hand, in the lighting fixture 1 according to the present embodiment, as shown in FIGS. 1 and 21, the heights of two adjacent cylinders 150 among the plurality of cylinders 150 are different. With this configuration, it is possible to prevent water from accumulating between two adjacent cylinders 150, and thus it is possible to prevent water from entering the cylinder 150. Therefore, it is possible to prevent the electric wires 2 having different potentials from the plurality of electric wires 2 from being short-circuited.

As described above, according to the lighting fixture 1 according to the present embodiment, since the plurality of tubular portions 150 project from the back surface of the fixture main body 10, it is possible to easily perform the wiring work of the plurality of electric wires 2. Since the heights of the two adjacent cylinders 150 among the plurality of cylinders 150 are different, it is possible to prevent the plurality of electric wires 2 from being short-circuited.

Moreover, since the heights of the two adjacent cylinders 150 among the plurality of cylinders 150 are different, the visibility of the polarity of the cylinders 150 can be improved. As a result, it is possible to prevent the electric wire 2 from being inserted incorrectly.

Further, in the present embodiment, the plurality of tubular portions 150 include a first tubular portion 150a through which the first electric wire 2a for power supply is inserted and a second tubular portion 150b through which the second electric wire 2b for power supply is inserted. It has a third tubular portion 150c through which a third electric wire 2c for grounding is inserted. The third cylinder portion 150c is located between the first cylinder portion 150a and the second cylinder portion 150b, and the height of the third cylinder portion 150c is the height of the first cylinder portion 150a and the second cylinder portion. It is lower than the height of 150b.

As a result, even if the holder 30 is provided with a third tubular portion 150c through which the third electric wire 2c for grounding is inserted, the first electric wire 2a for power supply or the second electric wire 2b for power supply is the first for grounding. It is possible to prevent ground faults via the 3 electric wires 2c. Moreover, since the first cylinder portion 150a through which the first electric wire 2a for power supply is inserted and the second cylinder portion 150b through which the second electric wire 2b for power supply is inserted can be separated from each other, the first electric wire 2a for power supply can be separated. And the second electric wire 2b for power supply can be further suppressed from being short-circuited.

In the above embodiment, short circuits or ground faults between the plurality of electric wires 2 are suppressed by making the heights of the two adjacent cylinders 150 of the plurality of cylinders 150 different, but the present invention is not limited to this. ..

For example, it may be a lighting fixture having a structure as shown in FIGS. 24A and 24B. FIG. 24A is a diagram showing the configuration of the second component 102A of the holder 30A of the lighting fixture according to the modified example. FIG. 24B is a cross-sectional view of the second component 102A in line BB of FIG. 24A.

As shown in FIGS. 24A and 24B, in the second component 102A of the holder main body 10A in the holder 30A used for the lighting fixture according to the present modification, the space between the two adjacent cylinders 150 among the plurality of cylinders 150. A protrusion structure 151 projecting in the vertical direction is provided in the portion. Specifically, a protrusion structure 151 is provided between the first cylinder portion 150a and the third convex portion 150c, and a protrusion structure 151 is provided between the second cylinder portion 150b and the third convex portion 150c. Has been done.

The protrusion structure 151 has an inclined surface 151a. The inclined surface 151a has a shape that is inclined downward from the top of the protrusion structure 151. Specifically, the inclined surface 151a of the protrusion structure 151 is inclined in a direction intersecting the arrangement direction of the two adjacent tubular portions 150. In the present embodiment, the protrusion structure 151 has a shape (specifically, a gable roof shape) having an inclined surface 151a inclined in two directions from the top of the protrusion structure 151. That is, the inclined surface 151a of the protrusion structure 151 is inclined from the line segment connecting the central axes of the two adjacent cylinders 150 to both sides in the direction intersecting the arrangement direction of the two adjacent cylinders 150. ing.

Further, the protrusion structure 151 has a shape continuous from one of the two adjacent cylinders 150 to the other between the two adjacent cylinders 150. Specifically, the cross-sectional shape is the same along the arrangement direction of the two adjacent tubular portions 150. Therefore, the top of the protrusion structure 151 exists linearly and continuously from one of the two adjacent cylinders 150 to the other between the two adjacent cylinders 150. In this modification, the protrusion structure 151 has a substantially triangular prism shape.

As described above, also in the lighting fixture in this modification, a plurality of tubular portions 150 project from the back surface of the fixture main body 10 as in the lighting fixture 1 shown in FIG. With this configuration, it is possible to easily perform the wiring work of the plurality of electric wires 2.

On the other hand, unlike the lighting fixture 1 shown in FIG. 1, the lighting fixture in this modification has the same height of two adjacent cylinders 150, but in this modification, of the plurality of cylinders 150. A protrusion structure 151 is provided in a portion between two adjacent tubular portions 150. With this configuration, even if water enters between two adjacent cylinders 150, the protrusion structure 151 allows the water to flow downward. That is, the protrusion structure 151 can encourage water to flow down. As a result, it is possible to prevent water from accumulating between two adjacent cylinders 150, and thus it is possible to prevent water from entering the cylinder 150. Therefore, it is possible to prevent the electric wires 2 having different potentials from the plurality of electric wires 2 from being short-circuited.

Further, in this modification, the protrusion structure 151 has an inclined surface 151a.

With this configuration, water easily flows down along the inclined surface 151a, so that it is possible to further suppress the accumulation of water between two adjacent tubular portions 150.

Further, in the present modification, the inclined surface 151a is inclined in a direction intersecting the arrangement direction of the two adjacent tubular portions 150.

With this configuration, water tends to flow down in a direction intersecting the arrangement direction of the two adjacent cylinders 150, so that it is possible to further suppress the accumulation of water between the two adjacent cylinders 150.

Further, in this modification, the inclined surface 151a is inclined from the line segment connecting the central axes of the two adjacent cylinders 150 to both sides in the direction intersecting the arrangement direction of the two adjacent cylinders 150. are doing.

With this configuration, since water can flow in two directions, it is possible to further suppress the accumulation of water between two adjacent cylinders 150.

The shape of the protrusion structure 151 is not limited to the shape having the inclined surface 151a inclined in two directions in the direction intersecting the arrangement direction of the two adjacent cylinder portions 150, and the arrangement of the two adjacent cylinder portions 150 is not limited to the shape. It may have a shape having an inclined surface 151a inclined in only one direction intersecting the direction (for example, a one-sided roof shape). Alternatively, the shape of the protrusion structure 151 has an inclined surface 151a that is inclined in two directions in the arrangement direction of two adjacent tubular portions 150 and is inclined in two directions intersecting the arrangement direction (that is, is inclined in four directions). It may have a shape (for example, a hipped roof shape or a square roof shape). Further, the shape of the protrusion structure 151 is not limited to the one having the same cross-sectional shape along the arrangement direction of the two adjacent cylinder portions 150, and the plurality of protrusions each having the inclined surface 151a are adjacent to each other. It may have a structure in which one row or a plurality of rows are arranged along the arrangement direction of the cylinder portions 150.

Further, when the protrusion structure 151 is provided between the two adjacent cylinders 150 as in the modified example, the heights of the two adjacent cylinders 150 are not limited to those different as shown in FIG. , The heights of two adjacent cylinders 150 may be the same. For example, as shown in FIG. 24, the heights of all the cylinders 150 may be the same. Of course, the protrusion structure 151 may be provided between the two adjacent cylinders 150 after the heights of the two adjacent cylinders 150 are different.

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

For example, in the above embodiment, the holders 30 and 30A are reflector-integrated light source fixing holders having a reflecting portion 180, but the present invention is not limited to this. Specifically, the holders 30 and 30A and the reflector may be structurally separated. That is, the holders 30 and 30A do not have to have the function of reflecting the light of the light source 20.

Further, in the above embodiment, the holders 30 and 30A are members for fixing the light source 20 to the instrument main body 10, but the present invention is not limited to this. For example, instead of the holders 30 and 30A, a connecting member that electrically connects the plurality of electric wires 2 and the light source 20 may be used. In this case, the connecting member may have at least a plurality of tubular portions 150 through which each of the plurality of electric wires 2 is inserted, and may not have a function of fixing the light source 20 to the instrument main body 10. good.

Further, in the above embodiment, the light source 20 is configured to emit white light by the blue LED chip and the yellow phosphor, but the present invention is not limited to this. For example, a phosphor-containing resin containing a red phosphor and a green phosphor may be used, and a combination thereof with a blue LED chip may be configured to emit white light.

Further, in the above embodiment, the blue LED chip is used as the LED, but the present invention is not limited to this. For example, as the LED, an LED chip that emits a color other than blue may be used. In this case, the phosphor may be appropriately selected according to the emission wavelength of the LED.

Further, in the above embodiment, the light source 20 has a COB structure in which the LED chip is directly mounted on the substrate, but the present invention is not limited to this. For example, as the light source 20, an LED module having an SMD (Surface Mount Device) structure may be used. The LED module having an SMD structure can be realized by mounting one or a plurality of SMD type light emitting elements as the light emitting unit 22 on the substrate 21. The SMD type light emitting element is, for example, a package having a resin package (container), an LED chip mounted in the concave portion of the package, and a sealing member (fluorescent material-containing resin) enclosed in the concave portion of the package. It is a type LED element.

Further, in the above embodiment, the LED is exemplified as the light emitting element, but as the light emitting element, a semiconductor light emitting element such as a semiconductor laser or another solid light emitting element such as an organic EL (Electroluminescence) or an inorganic EL is used. You may.

Further, the lighting fixture in the above embodiment may be installed in a mounted portion other than the ceiling. Further, the present invention may be applied to a lighting fixture other than the embedded lighting fixture, or may be applied to a lighting fixture other than the downlight.

In addition, it can be realized by arbitrarily combining the components and functions in each embodiment within the range obtained by applying various modifications to each embodiment and the purpose of the present invention. Forms are also included in the present invention.

1 Lighting equipment 2 Electric wire 2a 1st electric wire 2b 2nd electric wire 2c 3rd electric wire 10 Instrument body 11, 15 Through hole 20 Light source 30, 30A Holder (connecting member)
100, 100A Holder body 101 1st part 102, 102A 2nd part 150 Cylindrical part 151 Projection structure 151a Inclined surface 200 Conductive plate

Claims (11)

The instrument body and
The light source arranged on the fixture body and
It has a plurality of cylinders through which each of the plurality of electric wires is inserted, and includes a connecting member for electrically connecting the plurality of electric wires and the light source.
The plurality of tubular portions project vertically from the back surface of the instrument body, and the plurality of tubular portions protrude in the vertical direction.
The heights of two adjacent cylinders among the plurality of cylinders are different.
lighting equipment. The plurality of electric wires include a pair of first electric wires and second electric wires for power supply for supplying electric power to the light source, and a third electric wire for grounding.
The plurality of tubular portions include a first tubular portion through which the first electric wire is inserted, a second tubular portion through which the second electric wire is inserted, and a third tubular portion through which the third electric wire is inserted. death,
The third cylinder portion is located between the first cylinder portion and the second cylinder portion.
The height of the third cylinder portion is lower than the height of the first cylinder portion and the height of the second cylinder portion.
The lighting fixture according to claim 1. The connecting member is a holder for fixing the light source to the instrument body.
The holder has a holder body, a plurality of electric wires, and a plurality of conductive plates connected to each of the plurality of electric wires and the light source.
The plurality of tubular portions are provided in the holder body.
The lighting fixture according to claim 1 or 2. The holder body has a first component having a storage portion for accommodating the plurality of conductive plates and a second component having the plurality of tubular portions.
The lighting fixture according to claim 3. The instrument body has through holes provided at positions overlapping the plurality of tubular portions when viewed in a plan view.
The lighting fixture according to any one of claims 1 to 4, wherein the plurality of tubular portions project from the back surface of the fixture body through the through hole. The through hole is composed of one opening surrounding the plurality of tubular portions.
The lighting fixture according to claim 5. A protrusion structure protruding in the vertical direction is provided in a portion between two adjacent cylinders among the plurality of cylinders.
The lighting fixture according to any one of claims 1 to 6. The instrument body and
The light source fixed to the fixture body and
It has a plurality of cylinders through which each of the plurality of electric wires is inserted, and includes a connecting member for electrically connecting the plurality of electric wires and the light source.
The plurality of tubular portions project vertically from the back surface of the instrument body, and the plurality of tubular portions protrude in the vertical direction.
A protrusion structure is provided in the portion between the two adjacent cylinders among the plurality of cylinders .
The protrusion structure has an inclined surface having a shape inclined downward from the top of the protrusion structure.
lighting equipment. The protrusion structure has an inclined surface.
The lighting fixture according to claim 8. The inclined surface is inclined in a direction intersecting the alignment direction of the two adjacent cylinders.
The lighting fixture according to claim 9. The inclined surface is inclined from the line segment connecting the central axes of the two adjacent cylinders to both sides in the direction intersecting the arrangement direction of the two adjacent cylinders.
The lighting fixture according to claim 9.

Images