JP7284982B2 - lighting equipment - Google Patents

Description

The present invention relates to lighting fixtures.

Various luminaires have been proposed that include light source units with LEDs. Patent Literature 1 discloses an example of a conventional lighting fixture. The lighting fixture disclosed in the document includes a fixture body that supports a light source unit. In this lighting fixture, a plurality of light source units are fixed to one mounting plate, and the plurality of light source units are supported by the fixture body by mounting this mounting plate to the fixture body.

JP 2017-191732 A

Specifically, in the lighting fixture, an LED board on which LEDs constituting a light source unit are mounted is fixed to a mounting plate. For this reason, even if one of the plurality of light source units is to be removed for reasons such as repair, the removal of the LED substrate or the like is forced, which is difficult.

SUMMARY OF THE INVENTION The present invention has been conceived under the circumstances described above, and an object of the present invention is to provide a lighting fixture in which a light source unit can be replaced more easily.

A lighting fixture provided by the present invention is a lighting fixture comprising a light source unit having an LED and a fixture body supporting the light source unit, wherein the light source unit comprises a first elastic member, The main body has a second elastic member, and the first elastic member and the second elastic member can be engaged and disengaged, so that the light source unit can be attached to and detached from the fixture main body.

In a preferred embodiment of the present invention, the first elastic member has a pair of first engaging arms spaced apart from each other in a second direction perpendicular to the first direction in which the light source unit is attached and detached. , the second elastic member has second engaging arms spaced apart in the second direction, and the pair of first engaging arms are arranged in the second direction toward the side where the instrument main body is located in the first direction. The pair of second engaging arms are positioned inward in the second direction toward the side where the light source unit is positioned in the second direction. When the light source unit is attached or detached, the second inclined portion of the pair of second engaging arms is positioned between the first inclined portions of the pair of first engaging arms. part passes.

In a preferred embodiment of the invention, the instrument body comprises a plurality of members and a plurality of rivets securing the members together.

In a preferred embodiment of the present invention, the light source unit includes a first cable and a first connector provided at the tip of the first cable, and the instrument body includes a second cable and the tip of the second cable. The light source unit has a unit housing made of resin, and the first connector and the second connector are fitted.

In a preferred embodiment of the present invention, it further comprises a plurality of said light source units, and a power supply section for supplying power to said plurality of light source units, wherein said plurality of light source units are connected in series to said power supply section. It is

In a preferred embodiment of the present invention, the fixture body includes a reinforcing member exposed on the side opposite to the light source unit in the first direction.

A preferred embodiment of the present invention further comprises a control section for controlling the light emitting state of the light source unit, and the control section is configured separately from the power supply section.

According to the present invention, the light source unit can be replaced more easily.

Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a perspective view which shows an example of the lighting fixture which concerns on this invention. It is a perspective view which shows an example of the lighting fixture which concerns on this invention. 1 is an exploded perspective view showing an example of a lighting fixture according to the present invention; FIG. (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a bottom view showing an example of a lighting fixture according to the present invention. It is a perspective view which shows an example of the light source unit of the lighting fixture which concerns on this invention. 1 is an exploded perspective view showing an example of a light source unit of a lighting fixture according to the present invention; FIG. 1 is an exploded perspective view showing an example of a fixture body of a lighting fixture according to the present invention; FIG. 4(a) is an enlarged cross-sectional view of a main part taken along line VIII-VIII of FIG. 4(a); FIG. FIG. 4 is an enlarged cross-sectional view of a main part showing attachment of the light source unit; FIG. 4 is a perspective view showing an example of a first elastic member of the lighting fixture according to the present invention; FIG. 4 is a perspective view showing an example of a second elastic member of the lighting fixture according to the present invention;

Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

The terms "first", "second", "third", etc. in this disclosure are used merely as labels and are not necessarily intended to impose a permutation of the objects.

1 to 11 show an example of a lighting fixture according to the present invention. A lighting fixture A1 of this embodiment includes a light source unit 1, a fixture main body 6, a power supply section 81, and a control section . The luminaire A1 is used as indoor lighting, for example, by being attached to the indoor ceiling.

FIG. 1 is a perspective view showing lighting equipment A1. FIG. 2 is a perspective view showing the lighting fixture A1. FIG. 3 is an exploded perspective view showing the lighting fixture A1. 4, (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a bottom view showing the lighting fixture A1. FIG. 5 is a perspective view showing an example of the light source unit 1 of the lighting fixture A1. FIG. 6 is an exploded perspective view showing an example of the light source unit 1 of the lighting fixture A1. FIG. 7 is an exploded perspective view showing an example of the fixture body 6 of the lighting fixture A1. FIG. 8 is an enlarged cross-sectional view of a main part taken along line VIII-VIII of FIG. 4(a). FIG. 9 is an enlarged cross-sectional view of a main part showing how the light source unit 1 is mounted. FIG. 10 is a perspective view showing an example of the first elastic member 5 of the lighting fixture A1. FIG. 11 is a perspective view showing an example of the second elastic member 7 of the lighting fixture A1. In these figures, the z-direction is the first direction of the invention and the y-direction is the second direction of the invention.

<Light source unit 1>
The light source unit 1 is a unit that emits light and is the light source of the lighting fixture A1. The number of lighting fixtures A1 provided in the lighting fixture A1 is not particularly limited, and may be one or more. In the following description, an example in which three light source units 1 are provided will be described, unless otherwise specified.

As shown in FIGS. 3 , 5 and 6 , the light source unit 1 of this embodiment includes a unit housing 2 , multiple light source sections 3 , a translucent cover 4 and multiple first elastic members 5 . It should be noted that the specific configuration of the light source unit 1 is not limited to the configuration described below, and any configuration that includes the LED 32 as a light source element may be used. The light source unit 1 of this embodiment has an elongated shape whose longitudinal direction is the x direction.

<Unit case 2>
The unit housing 2 is for supporting the light source section 3 , the translucent cover 4 and the first elastic member 5 . The unit housing 2 of this embodiment has a main portion 21 and a pair of end plate portions 22 .
The main portion 21 is a member that mainly supports the light source portion 3 , the translucent cover 4 and the pair of first elastic members 5 . The main portion 21 has an elongated shape whose longitudinal direction is the x direction. The end plate portions 22 are attached to both ends of the main portion 21 in the x direction, and the material of the main portion 21 and the pair of end plate portions 22 of the unit housing 2 is not particularly limited. The material of the main portion 21 and the pair of end plate portions 22 of the unit housing 2 is preferably resin, for example.

<Light source unit 3>
The light source section 3 is a light emitting portion of the light source unit 1 . The configuration of the light source unit 3 is not particularly limited, and has an LED substrate 31 and a plurality of LEDs 32 in this embodiment. The LED substrate 31 has a strip shape elongated in the x-direction, and includes a base material made of, for example, a glass epoxy resin and a wiring pattern formed on the base material.

The plurality of LEDs 32 are, for example, bare-chip LEDs, or LED modules or the like in which bare-chip LEDs are mounted on a support member such as a lead frame or substrate and covered with translucent resin containing a fluorescent material. In this embodiment, the LED 32 is an LED module that emits white light by mixing blue light from the bare chip LED and yellow light emitted from the excited fluorescent material. A plurality of LEDs 32 are arranged along the x direction on the LED substrate 31 .

Moreover, although the light source unit 1 has three light source sections 3 in the present embodiment, the number of the light source sections 3 is not particularly limited. In the illustrated example, the three light source units 3 are arranged in the y direction so as to be parallel to each other. The three light source sections 3 are attached to the main section 21 of the unit housing 2 .

As shown in FIGS. 3 and 5, the light source unit 1 of this embodiment has a first cable 35 and a first connector 36 . The first cable 35 is connected to, for example, the LED board 31 of the light source section 3 and is for supplying power to the light source section 3 . The first connector 36 is attached to one end of the first cable 35 and is for connecting with a second connector 84 on the device main body 6 side, which will be described later.

<Translucent cover 4>
The translucent cover 4 is made of a material that allows the light from the light source section 3 to pass therethrough, and covers the light source section 3 supported by the unit housing 2 from below in the z direction. The material of the translucent cover 4 is not particularly limited, and is made of translucent milky white resin, for example. The shape of the light-transmitting cover 4 is not particularly limited, and in the present embodiment, it extends long in the x-direction and has a substantially U-shape when viewed in the x-direction. The translucent cover 4 is attached to the main portion 21 of the unit housing 2 at both y-direction edges, and is detachable from the unit housing 2 .

<First elastic member 5>
The first elastic member 5 is for detachably attaching the light source unit 1 to the fixture body 6 . In this embodiment, a pair of first elastic members 5 are attached to the upper surface of the main portion 21 of the unit housing 2 in the z direction while being spaced apart from each other in the x direction. The number of first elastic members 5 provided in the light source unit 1 is not particularly limited.

As shown in FIGS. 8, 9 and 10, the first elastic member 5 of this embodiment has a first base portion 51 and a pair of first engaging arms 52. As shown in FIGS. The material of the first elastic member 5 is not particularly limited as long as it is an elastic material capable of exhibiting the effects described later. In this embodiment, the first elastic member 5 is made of metal, and is formed, for example, by cutting and bending a metal plate material.

The first base portion 51 is a portion that supports the pair of first engaging arms 52 and is attached to the upper surface of the main portion 21 of the unit housing 2 . The shape of the first base portion 51 is not particularly limited, and in the present embodiment, it has a substantially rectangular annular shape when viewed in the z direction.

The pair of first engagement arms 52 are respectively connected to both y-direction side portions of the first base portion 51 and are spaced apart from each other in the y-direction. The first engagement arm 52 of this embodiment has a first standing portion 521 , a first intermediate portion 522 and a first tip portion 523 .

The first standing portion 521 is a portion that is connected to the first base portion 51 and stands up from the first base portion 51 in the z direction. In this embodiment, a first opening 525 is formed in the first upright portion 521 . The first opening 525 penetrates the first upright portion 521 in the y direction and has a substantially rectangular shape elongated in the x direction.

The first intermediate portion 522 is inclined with respect to the first standing portion 521 and is connected to the upper end of the first opening 525 in the z direction when viewed in the y direction. The first intermediate portion 522 is inclined outward in the y-direction as it is positioned downward in the z-direction (on the side of the main portion 21 of the unit housing 2) when viewed in the x-direction. That is, the first intermediate portions 522 of the pair of first engaging arms 52 are separated from each other in the y direction as they are positioned lower in the z direction (on the side of the main portion 21 of the unit housing 2) when viewed from the x direction. It is slanted like

The first tip portion 523 is inclined with respect to the first standing portion 521 and is connected to the upper end of the first standing portion 521 in the z direction. The first tip portion 523 is inclined so as to be positioned outward in the y direction as it is positioned higher in the z direction (on the side opposite to the main portion 21 of the unit housing 2) when viewed from the x direction. That is, the closer the first distal end portions 523 of the pair of first engaging arms 52 are positioned in the z-direction (on the side opposite to the main portion 21 of the unit housing 2) when viewed in the x-direction, the more they slanted away from each other.

<Equipment body 6>
As shown in FIGS. 1, 3, 4 and 8, the fixture body 6 is a part that supports the light source unit 1 and is attached to the ceiling or the like when the lighting fixture A1 is installed on the ceiling or the like. In this embodiment, as shown in FIGS. 3 and 7, the instrument body 6 includes a pair of first vertical sections 61, a pair of second vertical sections 62, a third vertical section 63, a reinforcing member 64, and a pair of ends. It has a plate portion 65 and a plurality of second elastic members 7 .

As shown in FIG. 7 , the pair of first vertical section 61, the pair of second vertical section 62, the third vertical section 63, the reinforcing member 64, and the pair of end plates 65 are a plurality of members constituting the instrument body 6. corresponds to an example of In the present embodiment, a pair of first vertical sections 61 , a pair of second vertical sections 62 , a third vertical section 63 , a reinforcing member 64 and a pair of end plate sections 65 , which are a plurality of members, are connected by a plurality of rivets 69 . fixed to each other. In the drawing, the plurality of rivets 69 are distinguished into a plurality of rivets 691 , a plurality of rivets 692 , a plurality of rivets 693 , a plurality of rivets 694 and a plurality of rivets 695 . The plurality of rivets 69 are made of resin or metal, for example.

The materials of the pair of first longitudinal sections 61, the pair of second longitudinal sections 62, the third longitudinal sections 63, the reinforcing member 64, and the pair of end plate sections 65 are not particularly limited, and in the present embodiment, for example, a metal plate material consists of

The pair of first vertical sections 61 each have a shape that extends vertically in the x direction, and are spaced apart from each other on both sides in the y direction. In this embodiment, the first longitudinal section 61 has a support plate portion 611 and a reflecting portion 612 .

The support plate portion 611 is a portion for supporting the light source unit 1 on the lower side in the z direction. In the illustrated example, the support plate portion 611 is a rectangular plate-like portion elongated in the x direction. The reflecting portion 612 is positioned outward in the y direction with respect to the support plate portion 611 . The reflecting portion 612 is inclined so that the lower it is positioned in the z direction, the more outwardly it is positioned in the y direction when viewed from the x direction. The reflecting portion 612 is a portion expected to reflect the light from the light source unit 1 in a desired direction, and preferably has a high reflectance color such as white or metallic color.

The pair of second vertical sections 62 are arranged between the pair of first vertical sections 61 in the y direction. The pair of second vertical sections 62 each have a shape that extends vertically in the x direction, and are spaced apart from each other in the y direction. In this embodiment, the second longitudinal section 62 has two reflecting sections 622 .

The two reflecting portions 622 are portions inclined with respect to the y direction and the z direction. The two reflecting portions 622 are inclined so that they are closer to each other in the y direction as they are positioned lower in the z direction when viewed from the x direction. Reflecting portion 622 is a portion expected to reflect the light from light source unit 1 in a desired direction, and preferably has a high reflectance color such as white or metallic color.

The third vertical section 63 has a shape that extends vertically in the x direction, and is arranged between the pair of second vertical sections 62 in the y direction. In this embodiment, the third longitudinal section 63 has a support plate portion 631 .

The support plate portion 631 is a portion for supporting the light source unit 1 on the lower side in the z direction. In the illustrated example, the support plate portion 631 is a rectangular plate-like portion elongated in the x direction.

The reinforcing member 64 is arranged above the third longitudinal section 63 in the z direction and has a shape elongated in the x direction. Also, in the illustrated example, the reinforcing member 64 has a pair of folded portions 641 . The pair of folded portions 641 are portions where both y-direction edges of the reinforcing member 64 are folded in the z-direction. By providing the pair of folded portions 641, the bending rigidity of the reinforcing member 64 is enhanced. The reinforcing member 64 is a member that is directly fixed to the ceiling or the like with a plurality of bolts 642 when the lighting fixture A1 is attached to the ceiling or the like with a plurality of bolts 642, for example, as shown in FIG.

The pair of end plate portions 65 are arranged at both ends in the x direction, as shown in FIG. The pair of end plate portions 65 blocks the pair of first vertical section 61, the pair of second vertical section 62, and the third vertical section 63 from both sides in the x direction. The shape of the end plate portion 65 is not particularly limited, and in the illustrated example, it is substantially trapezoidal when viewed from the x direction.

As shown in FIG. 7, the pair of end plate portions 65 are fixed to the x-direction ends of the reflecting portions 612 of the pair of first longitudinal sections 61 by a plurality of rivets 691 . Also, the pair of end plate portions 65 are fixed to the support plate portions 611 of the pair of first longitudinal sections 61 by a plurality of rivets 693 .

The pair of end plate portions 65 are fixed to both ends of the reflecting portions 622 of the pair of second longitudinal sections 62 in the x direction by a plurality of rivets 692 .

The support plate portion 631 of the third longitudinal section 63 is fixed to the upper ends of the pair of end plate portions 65 in the z direction by a pair of rivets 694 .

The reinforcing member 64 is fixed to the support plate portion 631 of the third longitudinal section 63 with a plurality of rivets 695 .

In this way, the pair of first longitudinal sections 61, the pair of second longitudinal sections 62, the third longitudinal section 63, the reinforcing member 64, and the pair of end plate sections 65, which are a plurality of members constituting the instrument body 6, are welded. They are fixed together by a plurality of rivets 69 without using a method such as bolting or the like.

<Second elastic member 7>
The second elastic member 7 is for detachably attaching the light source unit 1 to the fixture body 6 . In this embodiment, the pair of second elastic members 7 are spaced apart from each other in the x-direction to form the lower surface of the support plate portion 611 of the first longitudinal section 61 or the support plate portion 631 of the third longitudinal section 63 of the tool body 6 in the z-direction. attached to the In addition, the number of the second elastic members 7 included in the instrument body 6 is not particularly limited. In this embodiment, three pairs (six pieces) of second elastic members 7 are provided corresponding to the fact that the lighting fixture A1 has three light source units 1 .

As shown in FIGS. 8, 9 and 11, the second elastic member 7 of this embodiment has a second base portion 71 and a pair of second engaging arms 72. As shown in FIGS. The material of the second elastic member 7 is not particularly limited as long as it is an elastic material capable of exhibiting the effects described later. In this embodiment, the second elastic member 7 is made of metal, and is formed, for example, by cutting and bending a metal plate material.

The second base portion 71 is a portion that supports the pair of second engaging arms 72, and is provided on the lower surface of the support plate portion 611 of the first vertical section 61 or the support plate portion 631 of the third vertical section 63 of the instrument body 6. It is attached. The shape of the second base portion 71 is not particularly limited, and in the present embodiment, it has a substantially rectangular shape when viewed in the z direction.

The pair of second engaging arms 72 are connected to both y-direction side portions of the second base portion 71 and are spaced apart from each other in the y-direction. The second engaging arm 72 of this embodiment has a second standing portion 721 , a second intermediate portion 722 and a second tip portion 723 .

The second standing portion 721 is connected to the second base portion 71 and stands up from the second base portion 71 in the z direction.

The second intermediate portion 722 is connected to the lower end of the second standing portion 721 in the z direction and is inclined with respect to the second standing portion 721 . The second intermediate portion 722 is inclined so that the lower it is in the z-direction (the side opposite to the support plate portion 611 and the support plate portion 631), the more it is positioned outward in the y-direction when viewed from the x-direction. That is, the second intermediate portions 722 of the pair of second engaging arms 72 are positioned lower in the z direction (on the side opposite to the support plate portion 611 and the support plate portion 631) when viewed from the x direction, the more they are positioned in the y direction. are slanted away from each other.

The second tip portion 723 is inclined with respect to the second standing portion 721 and is connected to the lower end of the second intermediate portion 722 in the z direction. The second tip portion 723 is inclined inwardly in the y-direction as it is positioned downward in the z-direction (on the side opposite to the support plate portion 611 and the support plate portion 631) when viewed in the x-direction. That is, the second distal end portions 723 of the pair of second engaging arms 72 are positioned downward in the z direction (on the side opposite to the support plate portion 611 and the support plate portion 631) when viewed from the x direction, the more they are positioned in the y direction. are slanted toward each other at the In this embodiment, the second tip portion 723 has a wedge-shaped portion whose x-direction dimension decreases toward the tip.

<Power supply unit 81>
The power supply unit 81 is for converting, for example, commercial 100V AC power input from the outside into DC power suitable for causing the LED 32 of the light source unit 3 of the light source unit 1 to emit light. A specific configuration of the power supply unit 81 is not particularly limited, and includes, for example, a transformer, a capacitor, a resistor, and the like as appropriate. In the present embodiment, the power source section 81 is arranged on the support plate section 611 of the first longitudinal section 61, as shown in FIGS.

<control unit 82>
The control section 82 is for controlling the light emitting state of the LED 32 of the light source section 3 of the light source unit 1, for example, according to the operation of the user. In this embodiment, the controller 82 has a control board 821 and a plurality of control components 822 . The control board 821 has a base material made of glass epoxy resin, for example, and a wiring pattern formed on the base material. The plurality of control components 822 are electronic components or the like that constitute a control circuit, such as control ICs, communication components, or sensor components. The control function of the control unit 82 is not particularly limited. Lighting control using a sensor and the like can be mentioned. Note that the control unit 82 may be configured to control the operation of the power supply unit 81 , or may appropriately convert and control the power output from the power supply unit 81 .

In this embodiment, as shown in FIGS. 2 and 3, a second cable 83 is connected to the power supply section 81 . The second cable 83 is for supplying power from the power supply section 81 to the three light source units 1 . In this embodiment, the second cable 83 is laid from the power source section 81 to the lower side of the support plate portion 611 in the z direction via a through hole provided in the support plate portion 611 . In addition, from the lower side of the support plate portion 611 in the z direction, the third vertical section 63 is formed via the through hole provided in the first vertical section 61 and the through hole provided in the second vertical section 62 adjacent thereto. It is laid on the lower side of the support plate portion 631 in the z direction. Furthermore, via a through hole provided in the second vertical section 62, it is laid below the support plate section 611 of the first vertical section 61 on the opposite side in the y direction to the power supply section 81 in the z direction.

Three second connectors 84 are connected to the second cable 83 . The number of second connectors 84 corresponds to the number of light source units 1 . The three second connectors 84 are arranged below the support plate portions 611 of the pair of first vertical sections 61 in the z direction and below the support plate portions 631 of the third vertical section 63 in the z direction. Each second connector 84 is fitted and connected to the first connector 36 of each light source unit 1 .

<Removal of light source unit 1>
3 and 9 show the state in which the light source unit 1 is removed from the fixture main body 6. FIG. In the figure, the light source unit 1 is spaced downward in the z-direction from the support plate portion 611 (or support plate portion 631) of the fixture body 6 and the second elastic member 7 .

In order to attach the light source unit 1 to the instrument body 6, the light source unit 1 and the instrument body 6 are brought close to each other in the z direction, as shown in FIG. For example, when the fixture body 6 is fixed to the ceiling or the like, the light source unit 1 is raised toward the fixture body 6 . At this time, it is preferable to complete the connection between the first connector 36 and the second connector 84 .

When the light source unit 1 is raised, the first tip portions 523 of the pair of first engaging arms 52 of the first elastic member 5 and the second tip portions 723 of the pair of second engaging arms 72 of the second elastic member 7 are approaching each other. As shown in the figure, the first distal end portions 523 of the pair of first engaging arms 52 are positioned upward in the z direction (on the side opposite to the main portion 21 of the unit housing 2) when viewed from the x direction. , are slanted away from each other in the y-direction. In addition, the lower the second end portions 723 of the pair of second engaging arms 72 are positioned in the z direction (on the side opposite to the support plate portion 611 and the support plate portion 631) when viewed from the x direction, the more they are slanted toward each other at the The distance in the y direction between the upper ends of the pair of first tip portions 523 in the z direction is greater than the distance in the y direction between the lower ends of the pair of second tip portions 723 in the z direction. As a result, the pair of second tip portions 723 pass between the pair of first tip portions 523 so as to be guided by the pair of first tip portions 523 .

Also, the distance in the y direction between the z-direction lower ends of the pair of first tip portions 523 is smaller than the distance in the y direction between the z-direction upper ends of the pair of second tip portions 723 . Therefore, when the pair of first tip portions 523 and the pair of second tip portions 723 overlap each other when viewed from the y direction by raising the light source unit 1, the pair of first tip portions 523 The pair of first engaging arms 52 and the pair of second engaging arms 72 are elastically deformed so that the pair of second end portions 723 are spaced apart from each other and the pair of second end portions 723 approach each other in the y direction.

Then, when the pair of first tip portions 523 pass through the pair of second tip portions 723 and are positioned above in the z direction as viewed from the y direction, the second tip portions 723 and the second tip portions 723 of the pair of second engaging arms 72 and The two intermediate portions 722 are fitted into the first openings 525 of the pair of first engaging arms 52, respectively. In this fitting, the pair of first engaging arms 52 elastically deformed to move away from each other in the y direction and the pair of second engaging arms 52 elastically deformed to approach each other in the y direction. 72 approximately return to the shape before elastic deformation.

That is, as shown in FIG. 8, a part of each of the second intermediate portion 722 and the second tip portion 723 of the second engaging arm 72 passes through the first opening 525 to the first upright portion of the first engaging arm 52 . It is in a state of protruding outward in the y direction from 521 . In this state, when the user who lifts the light source unit 1 releases the light source unit 1, the weight of the light source unit 1 causes the first intermediate portions 522 of the pair of first engaging arms 52 to move the pair of first engaging arms 52 apart. It comes into contact with the second intermediate portion 722 of the two-engagement arm 72 and is supported by them. As described above, the attachment of the light source unit 1 to the fixture main body 6 is completed.

When the light source unit 1 is removed from the instrument main body 6, the light source unit 1 is pulled down in the z direction so that the pair of first engaging arms 52 are separated from each other in the y direction, and the pair of second engaging arms The pair of first elastic members 5 are separated from the pair of second elastic members 7 downward in the z direction while the elastic members 72 are elastically deformed so as to approach each other in the y direction. Thereby, the light source unit 1 can be removed from the fixture body 6 .

Next, the operation of the lighting fixture A1 will be described.

According to this embodiment, as shown in FIGS. 8 and 9, the light source unit 1 has the first elastic member 5 and the fixture body 6 has the second elastic member 7 . Since the first elastic member 5 and the second elastic member 7 can be engaged and disengaged, the light source unit 1 can be attached to and detached from the fixture body 6 . Therefore, when replacing the light source unit 1 for reasons such as repair, the light source unit 1 can be replaced more easily.

As described with reference to FIGS. 8 and 9, the pair of first engagement arms 52 have a pair of first tips 523, and the pair of second engagement arms 72 have a pair of second tips 723. , the light source unit 1 can be attached and detached more easily and reliably. In particular, in attaching the light source unit 1 shown in FIG. 9, even if the light source unit 1 is slightly displaced in the y direction with respect to the predetermined position of the fixture body 6, the pair of first tip portions 523 and the pair of Since the second tip portion 723 is inclined, it is possible to absorb the displacement of the light source unit 1 in the y direction and engage the pair of first engaging arms 52 and the pair of second engaging arms 72 . be. In addition, as shown in FIG. 11, the tapered portion of the second tip portion 723 is expected to bring the pair of second tip portions 723 between the pair of first tip portions 523 more reliably. be.

As shown in FIG. 8, when the light source unit 1 is attached to the fixture main body 6, the weight of the light source unit 1 causes the first intermediate portions 522 of the pair of first engagement arms 52 to move the pair of second It comes into contact with the second intermediate portion 722 of the engaging arm 72 and is supported thereon. As a result, the light source unit 1 can be more reliably supported by the instrument body 6, and the position of the light source unit 1 (first elastic member 5) with respect to the instrument body 6 (second elastic member 7) in the y direction can be appropriately corrected. A so-called self-centering effect is expected.

Furthermore, since the light source unit 1 is fixed to the fixture main body 6 by the engagement of the first elastic member 5 and the second elastic member 7, bolts or the like other than the first elastic member 5 and the second elastic member 7 can be fixed. No parts are required. Therefore, when the light source unit 1 is removed from the fixture main body 6, the light source unit 1 is pulled downward in the z direction, thereby causing elastic deformation of the pair of first engaging arms 52 and the pair of second engaging arms 72. Therefore, the light source unit 1 can be removed more easily.

As shown in FIG. 7 , a pair of first vertical sections 61, a pair of second vertical sections 62, a third vertical section 63, a reinforcing member 64, and a pair of end plate sections 65, which are a plurality of members constituting the instrument body 6 are fixed together by a plurality of rivets 69 without using techniques such as welding or bolting. As a result, the instrument body 6 can be configured by dividing it into smaller parts, and the instrument body 6 can be manufactured more easily. Moreover, by fixing with a plurality of rivets 69, the dimensional accuracy in manufacturing the instrument body 6 can be improved.

As shown in FIG. 3, in the replacement work of the light source unit 1, the light source unit 1 is removed from the fixture main body 6 while the first connector 36 and the second connector 84 are engaged. At this time, since the unit housing 2 that occupies most of the light source unit 1 is made of resin and is lighter than, for example, a case of being made of metal, the first connector 36, the second connector 84, and the first cable 35 can be connected. and the second cable 83 can temporarily support the light source unit 1 in a suspended state. This is preferable for easier work such as replacement of the light source unit 1 .

As shown in FIGS. 2 and 3, a plurality of light source units 1 are connected in series to one power supply section 81 by a first cable 35, a first connector 36, a second cable 83 and a second connector 84. ing. That is, each of the light source units 1 does not have a dedicated power supply section. This eliminates the need to replace the power source when the light source unit 1 is replaced, which is preferable for cost reduction.

As shown in FIGS. 2 and 7, instrument body 6 has a reinforcing member 64 . When attaching the device main body 6 to the ceiling or the like, the reinforcing member 64 is attached to the ceiling. Therefore, it is possible to suppress problems such as improper deformation of unintended portions of members other than the reinforcing member 64 in the instrument body 6 . It should be noted that improving the bending rigidity of the reinforcing member 64 by providing the reinforcing member 64 with the folded portion 641 is advantageous for suppressing deformation of the instrument body 6 .

Since the control unit 82 is provided as a separate unit from the power supply unit 81, the functions of the control unit 82 include, for example, wireless dimming using wireless communication, wired dimming (DALI control, PWM control), lighting control using a motion sensor, or the like is added or changed, the control unit 82 may be replaced, and the power supply unit 81 can be used continuously. This is preferable to reduce the cost of luminaire A1.

The luminaire according to the invention is not limited to the embodiments described above. The specific configuration of each part of the lighting fixture according to the present invention can be changed in various ways.

A1: Lighting fixture 1: Light source unit 2: Unit housing 3: Light source section 4: Translucent cover 5: First elastic member 6: Fixture main body 7: Second elastic member 21: Main section 22: End plate section 31: LED Substrate 32: LED
35: first cable 36: first connector 51: first base portion 52: first engaging arm 61: first longitudinal section 62: second longitudinal section 63: third longitudinal section 64: reinforcing member 65: end plate 71 : second base portion 72 : second engaging arm 81 : power supply portion 82 : control portion 83 : second cable 84 : second connector 521 : first standing portion 522 : first intermediate portion 523 : first tip portion 525 : First opening 611 : Supporting plate portion 612 : Reflecting portion 622 : Reflecting portion 631 : Supporting plate portion 641 : Folded portion 642 : Bolts 69, 691, 692, 693, 694, 695: Rivet 721 : Second standing portion 722 : Second intermediate portion 723 : Second tip portion 821 : Control board 822 : Control parts

Claims (7)

a light source unit comprising an LED;
A lighting fixture comprising a fixture body that supports the light source unit,
The light source unit includes a first elastic member,
The instrument body includes a second elastic member,
the first elastic member and the second elastic member can be engaged and disengaged in a first direction , so that the light source unit can be attached to and detached from the fixture body ;
the first elastic member has a pair of first engaging arms spaced apart from each other in a second direction perpendicular to the first direction;
the second elastic member has a pair of second engaging arms spaced apart from each other in the second direction;
The pair of first engaging arms has a pair of first standing portions, a pair of first intermediate portions and a pair of first tip portions,
The pair of second engaging arms has a pair of second standing portions, a pair of second intermediate portions and a pair of second tip portions,
the pair of first intermediate portions are inclined outward in the second direction with respect to the pair of first upright portions so as to separate from each other;
the pair of first tip portions are inclined with respect to the pair of first upright portions so as to approach each other inward in the second direction;
the pair of second intermediate portions are inclined outward in the second direction with respect to the pair of second upright portions so as to separate from each other;
the pair of second end portions are inclined with respect to the pair of second upright portions so as to approach each other inward in the second direction;
The lighting fixture, wherein the pair of first intermediate portions and the pair of second intermediate portions are in surface contact with each other when the first elastic member and the second elastic member are engaged. The pair of first standing portions has a pair of first openings penetrating in the second direction,
In a state in which the pair of first intermediate portions and the pair of second intermediate portions are in surface contact, a portion of the pair of second tip portions passes through the pair of first openings to the pair of first upright portions. 2. The lighting fixture according to claim 1, projecting outward in said second direction more than said second direction . 3. A lighting fixture according to claim 1 or 2, wherein the fixture body comprises a plurality of members and a plurality of rivets securing the members to each other. The light source unit includes a first cable and a first connector provided at the tip of the first cable,
The instrument body includes a second cable and a second connector provided at the tip of the second cable,
The light source unit has a unit housing made of resin,
4. The lighting fixture according to any one of claims 1 to 3, wherein said first connector and said second connector are fitted together. a plurality of light source units;
a power supply unit that supplies power to the plurality of light source units,
5. The lighting fixture according to any one of claims 1 to 4, wherein said plurality of light source units are connected in series to said power source. The lighting fixture according to any one of claims 1 to 5, wherein the fixture body includes a reinforcing member exposed on a side opposite to the light source unit in the first direction. further comprising a control unit for controlling a light emitting state of the light source unit,
The lighting fixture according to claim 5 , wherein the control section is configured separately from the power supply section.

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