JP7055266B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture.

Patent Document 1 discloses a lighting fixture including a fixture main body and a unit portion. The instrument body has a tubular shape with one end open. The instrument main body includes a covered cylindrical main body portion located on the upper side, which is the other end side opposite to the opening, and a circular decorative frame that can be attached to and detached from the lower end portion of the main body portion. The unit unit includes a light source module that emits light from one end side of the fixture body.

Japanese Unexamined Patent Publication No. 2016-091740

In the lighting fixture of Patent Document 1, the decorative frame is attached to the main body after the main body is installed on the ceiling. Therefore, there is a risk that the man-hours for installing the fixtures on the ceiling will increase. In addition, since the unit unit is attached to the instrument body from below, the unit unit may fall during the instrument installation work.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a lighting fixture capable of facilitating installation work.

The luminaire according to the present disclosure has a tubular housing having a first opening formed at one end and a second opening formed at the other end, a light source housed in the housing, and a light source housed in the housing. , A lighting device that lights the light source, an optical control unit that controls the light emitted by the light source and emits light from the first opening, a cover that closes the second opening, and a cover attached to the cover and from an external power source. The second opening is wider than the width of the lighting device , and the cover is provided in the direction from the first opening to the second opening. It has a side surface extending along it, and the terminal block is attached to the side surface portion and is adjacent to the lighting device via the side surface portion .

In the lighting fixture according to the present invention, a second opening is provided at an end portion of the housing opposite to the light emitting direction. Therefore, the light source, the lighting device, and the optical control unit can be housed from above the housing. Therefore, the installation work can be facilitated.

It is a perspective view of the lighting equipment which concerns on Embodiment 1. FIG. FIG. 5 is a five-view view of the lighting fixture according to the first embodiment. It is a lower perspective view of the housing which concerns on Embodiment 1. FIG. It is an upper perspective view of the housing which concerns on Embodiment 1. FIG. It is an exploded perspective view of the lighting equipment which concerns on Embodiment 1. FIG. It is a lower perspective view which shows the state which disassembled the light source unit which concerns on Embodiment 1. FIG. It is an upper perspective view which shows the state which disassembled the light source unit which concerns on Embodiment 1. FIG. It is a figure which shows the state which the electric wire is connected to the terminal block which concerns on Embodiment 1. FIG.

The lighting equipment according to the embodiment of the present invention will be described with reference to the drawings. The same or corresponding components may be designated by the same reference numerals and the description may be omitted.

Embodiment 1.
FIG. 1 is a perspective view of the lighting fixture 1 according to the first embodiment. FIG. 2 is a five-view view of the lighting fixture 1 according to the first embodiment. The lighting fixture 1 is, for example, an emergency lighting fixture. The luminaire 1 includes a housing 2, a cover 3, a terminal block 4, a lighting device, a light source, an optical control unit 7, and a holding spring 8.

The cover 3 is attached to the housing 2. The terminal block 4 is provided adjacent to the cover 3. The lighting device is housed inside the housing 2. The light source is housed inside the housing 2. The optical control unit 7 controls the light of the light source. The holding spring 8 is attached to the housing 2.

FIG. 3 is a downward perspective view of the housing 2 according to the first embodiment. FIG. 4 is an upward perspective view of the housing 2 according to the first embodiment. The housing 2 has a tubular shape. A first opening 24 is formed at one end of the housing 2, and a second opening 23 is formed at the other end. The second opening 23 is provided so that the lighting device, the light source, and the optical control unit 7 can be housed in the housing 2 from above. The width of the second opening 23 is larger than the width of the lighting device, the light source, and the optical control unit 7. Further, the width of the first opening 24 is smaller than the width of the lighting device.

The housing 2 is formed of, for example, aluminum die-cast. The housing 2 has a tubular side wall portion 21. Further, a flange portion 22 is provided at one end of the housing 2. The flange portion 22 extends horizontally from the lower end of the side wall portion 21 toward the outside and the inside. The collar portion 22 forms the first opening 24. The flange portion 22 becomes a design surface when the lighting fixture 1 is attached to the ceiling. Here, the design surface is a surface that can be seen by the user when the lighting fixture 1 is installed on the ceiling.

A notch is formed in the side wall portion 21. Due to the notch, the side wall portion 21 is formed with a first side wall portion 21a and a second side wall portion 21b whose height from the flange portion 22 is lower than that of the first side wall portion 21a.

FIG. 5 is an exploded perspective view of the lighting fixture 1 according to the first embodiment. The cover 3 is formed of a plate-shaped member. The cover 3 has a side surface portion 3a, an upper surface portion 3b, and a bottom surface portion 3c. The upper surface portion 3b is provided at the upper end of the first side wall portion 21a of the housing 2. The upper surface portion 3b covers the portion of the second opening 23 surrounded by the first side wall portion 21a. The bottom surface portion 3c is provided at the upper end of the second side wall portion 21b of the housing 2. The bottom surface portion 3c covers the portion of the second opening 23 surrounded by the second side wall portion 21b.

The side surface portion 3a covers the stepped portion between the first side wall portion 21a and the second side wall portion 21b in the side wall portion 21. The side surface portion 3a extends from the first opening 24 toward the second opening 23. As described above, the cover 3 has a shape along the upper end portion of the housing 2 and closes the second opening 23.

As shown in FIGS. 1 and 2, the terminal block 4 is provided adjacent to the housing 2 and the cover 3. The cover 3 is provided with a mounting portion for the terminal block 4. The terminal block 4 is attached to the side surface portion 3a of the cover 3. A lighting device 5 is provided inside the side surface portion 3a of the cover 3. The terminal block 4 is adjacent to the lighting device 5 via the side surface portion 3a.

The terminal block 4 supplies electric power from an external power source to the lighting device 5. Here, the external power supply is an AC power supply or a DC power supply. The terminal block 4 has an electric wire insertion portion 41. An electric wire is inserted into the electric wire insertion portion 41. The terminal block 4 is connected to an external power source by an electric wire. Further, the terminal block 4 is electrically connected to the lighting device 5. The wire insertion portion 41 faces in the horizontal direction. Further, the electric wire insertion portion 41 faces in the direction along the side surface portion 3a.

The terminal block 4 is formed of a thermosetting resin such as unsaturated polyester. Not limited to this, the terminal block 4 may be formed of a thermoplastic resin as long as it has heat resistance.

FIG. 6 is a downward perspective view showing a state in which the light source unit 90 according to the first embodiment is disassembled. FIG. 7 is an upward perspective view showing a state in which the light source unit 90 according to the first embodiment is disassembled. The lighting device 5, the light source 6, the optical control unit 7, and the holding member 9 constitute a light source unit 90. The holding member 9 holds the lighting device 5, the light source 6, and the optical control unit 7. The holding member 9 is, for example, a socket. The lighting device 5, the light source 6, and the optical control unit 7 are fixed to the holding member 9, and become integrated parts.

The lighting device 5 lights the light source 6 by the electric power supplied from the terminal block 4. The lighting device 5 is a so-called DC power supply device. The lighting device 5 receives electric power from an external power source and supplies controlled electric power to the light source 6. As a method of controlling the electric power supplied to the light source 6, constant current control, constant power control, constant voltage control and the like are used. The lighting device 5 includes a resin case and a circuit board housed in the case.

The light source 6 includes, for example, an LED. When an SMD (Surface Mount Device) type LED is used, the light source 6 is composed of an LED and a substrate on which the LED is mounted. On the other hand, when a COB (Chip On Board) type LED is used, the light source 6 does not require a substrate. In this case, the light source 6 may include a socket for holding the LED and connecting to the lighting device 5 instead of the substrate.

The light source 6 is provided between the lighting device 5 and the holding member 9. The light source 6 emits light downward. The light emitted by the light source 6 passes through the opening provided in the holding member 9 and is incident on the optical control unit 7.

The optical control unit 7 is provided in the light emission direction of the light source 6. The optical control unit 7 is provided on the side opposite to the light source 6 and the lighting device 5 with respect to the holding member 9. As shown in FIGS. 1 and 2, the optical control unit 7 closes the first opening 24. Further, the optical control unit 7 is arranged so as to face the outside from the first opening 24, and protrudes from the first opening 24.

The optical control unit 7 controls the light emitted by the light source 6 and emits it from the first opening 24. In this embodiment, the optical control unit 7 is a lens. The optical control unit 7 controls the light distribution so as to satisfy the target light distribution characteristics of the light of the light source 6. The optical control unit 7 is formed of, for example, glass. The optical control unit 7 may be made of a resin as long as the heat resistance is satisfied. Further, the optical control unit 7 may be a reflector other than the lens.

A mounting portion 21c for fixing the holding spring 8 is provided on the side wall portion 21 of the housing 2. The mounting portion 21c is composed of two opposing planes. Two holding springs 8 are attached to the attachment portion 21c so as to face each other. The holding spring 8 extends horizontally from both sides of the side wall portion 21 of the housing 2. The holding spring 8 is deformed toward the mounting portion 21c of the housing 2. That is, the holding spring 8 closes toward the housing 2.

Next, a method of assembling the lighting fixture 1 will be described. First, the light source unit 90 is assembled. At this time, the lighting device 5, the light source 6, and the optical control unit 7 are fixed to the holding member 9, and the light source unit 90 is integrated.

Next, the integrated light source unit 90 is inserted from the second opening 23 of the housing 2 toward the first opening 24. Here, the width of the second opening 23 is larger than the width of the light source unit 90. Therefore, the light source unit 90 can be housed in the housing 2 from the second opening 23. In the present embodiment, the light source unit 90 can be housed in the housing 2 from above. Therefore, the assembly work can be facilitated as compared with the case where the lighting device or the like is attached from below the housing. Further, in the present embodiment, the light source unit 90 integrated in advance is housed in the housing 2. Therefore, the assembly work can be further facilitated.

Further, the width of the first opening 24 is smaller than the width of the light source unit 90. Therefore, the light source unit 90 can be held on the lower end side of the housing 2. Therefore, it is possible to prevent the light source unit 90 from falling. With the light source unit 90 inserted in the housing 2, the first opening 24 of the housing 2 is closed by the optical control unit 7. After that, the cover 3 is attached to the upper end of the housing 2. As a result, the second opening 23 is closed. Further, the terminal block 4 is attached to the cover 3.

The holding spring 8 may be attached to the housing 2 in advance before the light source unit 90 is housed in the housing 2. Further, the holding spring 8 may be attached to the housing 2 after the light source unit 90 is housed in the housing 2.

Next, a method of installing the lighting fixture 1 on the attached portion will be described. The attached portion is, for example, a ceiling. First, the electric wire drawn from the attached portion is connected to the electric wire insertion portion 41 of the terminal block 4. Next, the holding spring 8 is squeezed toward the housing 2, and the luminaire 1 is inserted into the attached portion. When the luminaire 1 is inserted into the attached portion, the holding spring 8 is in an open state. As a result, the luminaire 1 is attached to the attached portion.

As described above, the work of installing the luminaire 1 on the attached portion is completed by attaching the pre-assembled luminaire 1 to the attached portion. Therefore, construction can be facilitated. Further, in the present embodiment, since the light source unit 90 is inserted from above the housing 2, a design surface can be provided in advance at the lower end of the housing 2. Therefore, it is not necessary to attach the decorative frame or the like to the housing 2 after installing the housing 2 on the ceiling. Therefore, the construction can be made easier.

FIG. 8 is a diagram showing a state in which the electric wire 42 is connected to the terminal block 4 according to the first embodiment. The electric wire insertion portion 41 faces in the direction along the mounting portion 21c of the housing 2. Therefore, the electric wire 42 is not pulled out in the direction in which the holding spring 8 is provided. This makes it possible to prevent the holding spring 8 from touching the electric wire 42 even when the electric wire 42 is inserted into the terminal block 4. Therefore, it is possible to prevent the electric wire 42 and the holding spring 8 from coming into contact with each other during construction.

Further, as shown in the plan view of FIG. 2, the terminal block 4 is provided directly above the housing 2. The terminal block 4 fits inside the housing 2 when viewed from the direction along the central axis of the housing 2. Therefore, the lighting fixture 1 can be miniaturized.

Further, as shown in FIG. 8, the electric wire 42 is pulled out from the electric wire insertion portion 41 in the direction along the side surface portion 3a of the cover 3. At this time, the lighting device 5 is not provided on the side opposite to the side where the electric wire 42 of the terminal block 4 is drawn out. Therefore, it is possible to secure a wider space for the electric wire 42 to pass directly above the housing 2 than when the electric wire 42 is pulled out from the electric wire insertion portion 41 in the direction perpendicular to the side surface portion 3a of the cover 3. Therefore, it is difficult for the electric wire 42 to protrude to the side of the lighting fixture 1. Therefore, the lighting fixture 1 can be easily attached to the attached portion and can be easily installed.

In addition, the performance of emergency lighting equipment is stipulated by the Building Standards Law and related laws and regulations. The lighting fixture 1 of the present embodiment has a built-in lighting device 5 and does not have a built-in backup power source such as a battery. When the electric wire can be fed, that is, crossover wiring is possible in such a lighting fixture, a predetermined flame retardant performance is generally required for the terminal block. In the present embodiment, by using a thermosetting resin for the terminal block 4, the flame retardant performance specified as an emergency lighting fixture can be satisfied.

Further, the portion exposed from the ceiling surface of the emergency luminaire generally needs to be formed of a flame-retardant material. The housing 2 in the present embodiment is made of a metal material such as aluminum die-cast. Therefore, the requirements as an emergency lighting fixture can be satisfied.

As a modification of the present embodiment, the side wall portion 21 of the housing 2 may not be provided with a notch. Further, the shape of the housing 2 is not limited to that shown in FIGS. 3 and 4. For example, the cross section of the side wall portion 21 of the housing 2 may be circular, quadrangular, or polygonal. Further, the electric wire insertion portion 41 of the terminal block 4 may face in a direction intersecting the direction in which the holding spring 8 extends. This makes it possible to prevent interference between the electric wire 42 and the holding spring 8.

The technical features described in this embodiment may be used in combination as appropriate.

1 Lighting equipment, 2 housing, 21 side wall, 21a 1st side wall, 21b 2nd side wall, 21c mounting part, 22 flange, 23 2nd opening, 24 1st opening, 3 cover, 3a side surface, 3b Top surface, 3c bottom, 4 terminal block, 41 wire insertion section, 42 wire, 5 lighting device, 6 light source, 7 optical control section, 8 holding spring, 9 holding member

Claims (9)

A tubular housing with a first opening formed at one end and a second opening formed at the other end.
The light source housed in the housing and
A lighting device housed in the housing and lighting the light source,
An optical control unit that controls the light emitted by the light source and emits light from the first aperture.
The cover that closes the second opening and
A terminal block attached to the cover and supplying power from an external power source to the lighting device,
Equipped with
The width of the second opening is larger than the width of the lighting device.
The cover comprises side surfaces extending along the direction from the first opening to the second opening.
A luminaire characterized in that the terminal block is attached to the side surface portion and is adjacent to the lighting device via the side surface portion . The luminaire according to claim 1, wherein the width of the first opening is smaller than the width of the lighting device. The luminaire according to claim 1 or 2, wherein a design surface forming the first opening is provided at one end of the housing. The luminaire according to any one of claims 1 to 3, wherein the optical control unit closes the first opening. The luminaire according to any one of claims 1 to 4, wherein the optical control unit projects from the first opening. The lighting fixture according to any one of claims 1 to 5 , wherein the terminal block has an electric wire insertion portion that faces in a direction along the side surface portion. A holding spring extending horizontally from the side wall of the housing is provided.
The luminaire according to any one of claims 1 to 6 , wherein the terminal block has an electric wire insertion portion that faces a direction intersecting a direction in which the holding spring extends. The lighting equipment according to any one of claims 1 to 7 , wherein the terminal block is formed of a thermosetting resin. The luminaire according to any one of claims 1 to 8 , further comprising a holding member for holding the light source, the lighting device, and the optical control unit.

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