JP7634338B2 - Lighting fixtures - Google Patents

Description

The present invention relates to a lighting fixture in which an electric wire is connected from an electric wire hole of a main unit to a power terminal block.

Conventionally, there are lighting fixtures in which a main unit (lighting unit) is attached to a mounting part such as a ceiling, and then an electric wire extending from the back of the mounting part is connected to a power terminal block to attach a lighting device (see, for example, Patent Document 1).

JP 2018-97923 A

In the lighting fixture described in Patent Document 1, during installation, the electric wires are pulled out from the mounting part on the ceiling or the like, and the electric wires are connected to a power terminal block having a socket facing the mounting part. After that, the lighting device is attached to the main unit. The main unit is then attached to the mounting part. At this time, any excess electric wires between the mounting part and the main unit having the power terminal block may be pinched between the main unit and the mounting part, which may hinder the installation of the main unit to the mounting part. For this reason, the excess electric wires pulled out from the mounting part need to be pushed to the back side of the mounting part when the main unit is attached to the mounting part. As such, there is an issue that installation of the lighting fixture is time-consuming.

The present invention solves the above-mentioned problems and aims to provide a lighting fixture that makes installation easier by eliminating the need for excess electric wires pulled out from the mounting part to be pushed to the back side of the mounting part when attaching the main unit to the mounting part.

The lighting fixture of the present invention comprises a circular main unit having an electric wire hole through which an electric wire extending from the mounting portion is inserted, and a cylindrical cover assembly which covers the main unit and has an outlet through which light is emitted. The main unit has a power terminal block which has an insertion port which opens in a direction different from the attachment direction to the mounting portion and through which an electric wire is connected. The electric wire hole and the power terminal block are arranged on the surface of the main unit facing the cover assembly and are arranged close together in a position aligned with the side of the cover assembly on the outer periphery of the main unit, so that the electric wire hole and the power terminal block are concentrated in a part of the surface of the main unit facing the cover assembly with a short distance between them when viewed in a plan view.

According to the lighting fixture and the method for mounting the lighting fixture of the present invention, the main unit has a power terminal block provided with an insertion port that opens in a direction different from the mounting direction to the mounting part and to which the electric wire is connected. This allows the electric wire extending from the electric wire hole to be easily connected to the insertion port that opens in a direction different from the mounting direction to the mounting part. The electric wire connected to the electric wire hole and the insertion port is stored in a loose and folded back state in the internal space of the lighting fixture. Therefore, there is no need to push the excess electric wire pulled out from the mounting part to the back side of the mounting part when mounting the main unit to the mounting part, making installation easier.

1 is a perspective view showing a lighting fixture according to a first embodiment. 1 is an exploded perspective view showing a lighting fixture according to a first embodiment. FIG. 1 is a perspective view showing a state in which the main unit is attached to the mounting portion while the electric wires in the lighting fixture of embodiment 1 are being pulled into the electric wire holes. FIG. 1 is a perspective view showing a state in which an electric wire drawn into an electric wire hole in a lighting fixture according to embodiment 1 is connected to a socket of a power terminal block. FIG. 13 is a perspective view showing a state in which a partition plate is provided between the electric wires and the lighting device and storage battery in a lighting fixture according to a modified example of embodiment 1. FIG.

Below, an embodiment is described with reference to the drawings. In each drawing, the same reference numerals are used to denote the same or equivalent parts, and this is the same throughout the entire specification. Furthermore, the forms of the components shown in the entire specification are merely examples and are not limited to these descriptions.

Embodiment 1.
<Lighting fixture 1>
Fig. 1 is a perspective view showing a lighting fixture 1 according to embodiment 1. Fig. 2 is an exploded perspective view showing the lighting fixture 1 according to embodiment 1. As shown in Fig. 1 and Fig. 2, the lighting fixture 1 is formed in a substantially cylindrical shape. As shown in Fig. 2, a portion of the lighting fixture 1 on an upward direction U side is attached to a mounting portion such as a ceiling via a waterproof packing 90.

As shown in Figures 1 and 2, the lower surface of the lighting device 1 in the downward direction D is a disk-shaped cover front portion 11. The cover front portion 11 is a portion from which light rays from a light source (not shown) are emitted. A plurality of display holes 15 are formed in the cover front portion 11.

As shown in FIG. 2, the lighting fixture 1 is fixed to a mounting portion provided on a ceiling or the like. The lighting fixture 1 includes a cover assembly 10, a lighting device 30, a storage battery 31, and a main unit 60. The cover assembly 10 is formed by fixing the light source portion 20 to the cover portion. The main unit 60 has a power terminal block 40 fixed thereto. The lighting device 30 is attached to the main unit 60. The main unit 60 has an upper surface. The upper surface of the main unit 60 is the portion that is fixed to the mounting portion.

<Cover assembly 10>
As shown in Fig. 2, the cover assembly 10 includes a cover portion, a light source portion 20, and a heat sink 27. The cover portion has a cylindrical shape with a bottom, and houses a power terminal block 40 and a lighting device 30 fixed to a main unit 60 inside the cylindrical portion, as well as the light source portion 20 fixed to the cover portion. At this time, an internal space 70 for accommodating electric wires 42 described below is formed inside the cover assembly 10. The cover portion, together with the main body structural portion, constitutes a part of the housing of the lighting fixture 1. The cover portion has a cover front portion 11 corresponding to the lower portion of the cylindrical shape with a bottom, and a cover side portion 13 corresponding to the cylindrical portion.

The cover part has an emission port 21 formed in the cover front part 11 that forms the bottom surface of the bottomed cylindrical shape, exposing the optical control member. The light source part 20 and packing are fixed to the bottom surface, which is the inner surface of the cover front part 11 of the cover part. In addition, the signal receiving part and monitor packing are fixed to the bottom surface of the cover part. The light source part 20, packing, signal receiving part and monitor packing are sandwiched between the cover front part 11 and the heat sink 27 and are fixed by being pressed. The packing is also called a lens packing.

As shown in FIG. 2, the cover has a guide fitting 12 fixed to the inner surface of the cover side portion 13. The guide fitting 12 is combined with a cover mounting member 61. The guide fitting 12 has two plate-shaped guide portions that extend toward the inside of the cover from both ends of a plate-shaped joint along the inner peripheral surface of the cover. In other words, the guide fitting 12 is formed in a U-shape that is open toward the inside of the cover. The guide portions are located on the side where the two side portions are located, sandwiching the cover mounting member 61 from the outside.

<Light source unit 20>
A heat sink 27 is attached to the light source unit 20. The light source unit 20 is fixed to the bottom surface of the cover unit via the heat sink 27 with a screw 10-3. The optical control member is, for example, a lens, and is a member that controls the direction and range of travel of the light beam emitted from the light source. The optical control member includes an optical control unit that protrudes from the center in the direction in which the light beam is emitted from the light source, i.e., in the optical axis direction, and a flange that is formed by protruding outward from the optical control unit. The flange is fixed to the holder by an L-shaped rib. The optical axis is the central axis of the light beam emitted by the light source, and in the first embodiment, it coincides with the central axis of the lighting fixture 1. In other words, the optical axis coincides with the central axis of the cylinder formed by the cover side portion 13 of the cover unit.

The holder of the light source unit 20 is fixed by engaging the engagement part with the heat sink 27. The heat sink 27 is fixed inside the cover unit by pulling it toward the cover front part 11 with the screw 10-3. The light source unit 20 and the packing are sandwiched between the heat sink 27 and the cover front part 11 of the cover unit and pressed and fixed. The screw 10-3 penetrates the screw packing arranged between the cover front part 11 and the heat sink 27 and screws into the heat sink 27. The screw packing is compressed between the cover front part 11 and the heat sink 27, improving the airtightness and waterproofness of the inside of the lighting fixture 1.

<Structure of the Periphery of the Light Source Unit 20>
As shown in Fig. 1, the periphery of the light output port 21 of the cover part is formed to protrude toward the outside of the cover part. In other words, when viewed from inside the cover part, the bottom surface of the cover part, which is in the shape of a cylinder with a bottom, has a packing arrangement surface that is recessed toward the direction in which the light beam is output more than the surrounding surface. The packing arrangement surface is formed in an annular shape around the light output port 21. In addition, a connection surface that extends in the direction along the optical axis is formed between the packing arrangement surface and the surrounding surface. The packing is arranged so as to be along the packing arrangement surface and the connection surface.

<Main unit 60>
As shown in FIG. 2, the main unit 60 is formed in a bottomed cylindrical shape in the direction along the optical axis. The opening of the bottomed cylindrical shape of the main unit 60 faces the cover part side. One side of the main unit 60 is fixed to the mounting part, and the cover part is attached to the other side. The cover part is attached to the main unit 60 so as to cover the other side of the main unit 60. The cylindrical part constituting the side of the main unit 60 is shorter than the cover part. A cover part mounting member 61 that protrudes toward the cover part side is installed on the inside of the cylindrical part of the main unit 60. The cover part mounting member 61 is installed in two places, and a pair is arranged so as to sandwich the lighting device 30 fixed to the center part of the main unit 60.

The cover part mounting member 61 has a U-shaped cross section perpendicular to the optical axis. The tip of the cover part mounting member 61 on the cover part side is formed with a screw mounting part that is parallel to the bottom surface of the cover part. A screw hole is formed in the screw mounting part.

As shown in Figures 1 and 2, the screw attachment portion formed at the tip of the cover attachment member 61 and the bottom surface of the cover are fastened with a screw 10-1. A screw packing is sandwiched between the screw attachment portion and the bottom surface of the cover, and the screw 10-1 screws into a threaded hole formed in the screw attachment portion through the screw packing. With this configuration, the cover is pulled toward the main unit 60 and fixed in place.

<Configuration for Wire Arrangement>
3 is a perspective view showing a state in which the main unit 60 is attached to the attachment portion while the electric wire 42 in the lighting fixture 1 according to the first embodiment is being pulled into the electric wire hole 62-2. As shown in FIG. 3, the main unit 60 is provided with an electric wire hole 62-2 through which the electric wire 42 extending from the attachment portion is inserted.

The main unit 60 has a power terminal block 40 provided with an insertion port 41 that opens in a downward direction D, which is a direction different from the upward direction U, which is the mounting direction to the mounting part, and to which an electric wire 42 is connected. The insertion port 41 opens in a downward direction D, which is the opposite direction from the upward direction U, which is the mounting direction to the mounting part, and the electric wire 42 is connected. Note that it is sufficient that the insertion port 41 opens in a direction different from the upward direction U, which is the mounting direction to the mounting part. For example, the insertion port 41 may open in a horizontal direction such as the front direction F, the rear direction B, the right direction R, or the left direction L.

The electric wire hole 62-2 and the power terminal block 40 are arranged close together on the bottom surface of the mounting part side in a plan view. As a result, the electric wire hole 62-2 and the power terminal block 40 are concentrated in a part of the bottom surface of the mounting part side in a plan view with a short distance between them.

The main unit 60 holds the lighting device 30 at a location on the bottom surface of the mounting part side that is different from the electric wire hole 62-2 and the power terminal block 40 in a plan view. The main unit 60 holds the storage battery 31 at a location close to the lighting device 30 on the bottom surface of the mounting part side in a plan view.

<How to install lighting fixture 1>
As shown in FIG. 3, in a first step, an operator inserts the electric wire 42 into the electric wire hole 62-2, and then moves the main unit 60 in the upward direction U of the arrow A1 in the drawing to attach it to the attachment portion.

Figure 4 is a perspective view showing the state in which the electric wire 42 drawn into the electric wire hole 62-2 in the lighting fixture 1 according to the first embodiment is connected to the socket 41 of the power terminal block 40. As shown in Figure 4, in the second step, the worker folds back the electric wire 42 inserted into the electric wire hole 62-2 in the internal space 70 while still loose, as shown by the arrow A2, and connects it to the socket 41. As a result, the electric wire 42 connected to the electric wire hole 62-2 and the socket 41 is stored in the internal space 70 of the lighting fixture 1 in a loose and folded back state.

<Modification>
Fig. 5 is a perspective view showing a state where a partition plate 63 is provided between the electric wire 42 and the lighting device 30 and the storage battery 31 in the lighting fixture 1 according to the modified example of the first embodiment. As shown in Fig. 5, the main unit 60 has a partition plate 63 that separates the electric wire 42 from the lighting device 30 and the storage battery 31 in a plan view from the bottom surface of the mounting part side toward the opposite direction to the mounting direction to the mounting part. As a third step, after connecting the electric wire 42 to the insertion port 41, the worker may fix the partition plate 63 to the bottom surface of the mounting part side in a plan view between the electric wire 42 and the lighting device 30 and the storage battery 31. Note that the partition plate 63 may separate the electric wire 42 from the lighting device 30 in a plan view from the bottom surface of the mounting part side toward the opposite direction to the mounting direction to the mounting part.

<Effects of First Embodiment>
According to the first embodiment, the lighting fixture 1 includes a main unit 60 having an electric wire hole 62-2 through which an electric wire 42 extending from the mounting portion is inserted. The main unit 60 has a power terminal block 40 having an insertion port 41 that opens in a downward direction D, which is different from an upward direction U, which is the mounting direction to the mounting portion, and through which the electric wire 42 is connected.

Conventionally, a worker would connect the electric wire extending from the electric wire hole of the main unit to the insertion port of the power terminal block, and then push the electric wire into the ceiling while attaching the main unit to the ceiling. In contrast, with this configuration, after the main unit 60 is attached to the mounting part, the electric wire 42 extending from the electric wire hole 62-2 can be easily connected to the insertion port 41 that opens in the downward direction D, which is different from the upward direction U that is the mounting direction to the mounting part, simply by folding it back. The electric wire 42 that connects the electric wire hole 62-2 and the insertion port 41 is stored in a loose and folded back state in the internal space 70 of the lighting fixture 1. Therefore, there is no need to push the excess electric wire 42 pulled out from the mounting part to the back side of the mounting part when attaching the main unit 60 to the mounting part, making installation easier. In addition, by pushing the electric wire to the back side of the mounting part, it is possible to prevent poor connection of the electric wire caused by stress being applied to the electric wire.

According to the first embodiment, the insertion port 41 opens in a downward direction D, which is opposite to the upward direction U, which is the mounting direction to the mounting part, and the electric wire 42 is connected thereto.

Conventionally, a worker would connect the electric wire extending from the electric wire hole of the main unit to the insertion port of the power terminal block, and then push the electric wire into the ceiling while attaching the main unit to the ceiling. In contrast, with this configuration, after the main unit 60 is attached to the mounting part, the electric wire 42 extending from the electric wire hole 62-2 can be easily connected to the insertion port 41 that opens in the downward direction D, which is the opposite direction to the upward direction U that is the mounting direction to the mounting part, simply by folding it back. The electric wire 42 that connects the electric wire hole 62-2 and the insertion port 41 is folded back in a loose state in the internal space 70 of the lighting fixture 1. Therefore, there is no need to push the excess electric wire 42 pulled out from the mounting part to the back side of the mounting part when attaching the main unit 60 to the mounting part, making installation easier. In addition, by pushing the electric wire to the back side of the mounting part, it is possible to prevent poor connection of the electric wire caused by stress being applied to the electric wire.

According to the first embodiment, the lighting fixture 1 is formed with an internal space 70 that accommodates the wire 42 connected to the wire hole 62-2 and the insertion port 41 in a loose and folded-back state.

This configuration makes installation easier, since there is no need to push the excess wire 42 pulled out from the mounting portion to the back side of the mounting portion when attaching the main unit 60 to the mounting portion.

According to the first embodiment, the main unit 60 holds the power terminal block 40.

This configuration allows the power terminal block 40 to be easily attached to the main unit 60.

According to the first embodiment, the electric wire hole 62-2 and the power terminal block 40 are arranged close together on the bottom surface of the mounting portion side in a plan view.

According to this configuration, the electric wire 42 extending from the electric wire hole 62-2 is connected to the insertion port 41 of the power terminal block 40 arranged near the electric wire hole 62-2. As a result, the electric wire 42 that is connected to the electric wire hole 62-2 and the insertion port 41 in a loose and folded-back state in the internal space 70 of the lighting fixture 1 can be contained only in a narrow range within the internal space 70 of the lighting fixture 1, and the electric wire 42 is less likely to interfere with other components.

According to the first embodiment, the main unit 60 holds the lighting device 30 at a location different from the electric wire hole 62-2 and the power terminal block 40 on the bottom surface of the mounting portion side in a plan view.

With this configuration, the electric wire 42 that is connected to the electric wire hole 62-2 and the insertion port 41 in a loose and folded-back state in the internal space 70 of the lighting fixture 1 can be positioned away from the lighting device 30. This reduces problems such as poor connection of the electric wire 42 that occurs when the electric wire 42 comes into contact with the lighting device 30 during maintenance.

According to the first embodiment, the main unit 60 has a partition plate 63 that separates the electric wire 42 and the lighting device 30 from the bottom surface of the mounting part toward a downward direction D, which is the opposite direction to the upward direction U, which is the mounting direction to the mounting part, in a plan view.

According to this configuration, the partition plate 63 separates the electric wire 42 and the lighting device 30 in the internal space 70 of the lighting fixture 1. As a result, the partition plate 63 separates the electric wire 42 side from interference from the worker performing maintenance on the lighting device 30, protecting the electric wire 42 and preventing interference with the electric wire 42 and causing adverse effects. Therefore, problems such as poor connection of the electric wire 42 caused by contact between the electric wire 42 and the lighting device 30 or the worker's tools or hands during maintenance can be reduced.

According to the first embodiment, the main unit 60 holds the storage battery 31 at a location close to the lighting device 30 on the bottom surface of the mounting portion side in a plan view.

With this configuration, the electric wire 42 that is loose and folded back in the internal space 70 of the lighting fixture 1 and connects to the electric wire hole 62-2 and the insertion port 41 can be positioned away from the storage battery 31. This reduces problems such as poor connection of the electric wire 42 that occurs when the electric wire 42 comes into contact with the storage battery 31 or the worker's tools or hands during maintenance.

According to embodiment 1, the partition plate 63 separates the electric wire 42 from the lighting device 30 and the storage battery 31 in a downward direction D, which is the opposite direction to the upward direction U, which is the mounting direction from the bottom surface of the mounting part to the mounting part in a plan view.

According to this configuration, the partition plate 63 separates the electric wire 42 from the lighting device 30 and the storage battery 31 in the internal space 70 of the lighting fixture 1. As a result, the partition plate 63 separates the electric wire 42 side from interference from the worker performing maintenance on the lighting device 30 or storage battery 31, protecting the electric wire 42 and preventing interference with the electric wire 42 and causing no adverse effects. Therefore, problems such as poor connection of the electric wire 42 caused by contact between the electric wire 42 and the lighting device 30 or storage battery 31, or the worker's tools or hands, during maintenance, can be reduced.

According to the first embodiment, the lighting device 1 includes a cover assembly 10 that covers the main unit 60 and has an outlet 21 through which light is emitted.

This configuration allows the cover assembly 10 to keep the interior of the lighting fixture 1 clean and improve the design of the lighting fixture 1.

According to the first embodiment, the method of mounting the lighting fixture 1 includes a first step of attaching the main unit 60 to the mounting part after inserting the electric wire 42 into the electric wire hole 62-2. The method of mounting the lighting fixture 1 includes a second step of folding back the electric wire 42 inserted into the electric wire hole 62-2 while it is still loose in the internal space 70, and connecting it to the insertion port 41.

Conventionally, a worker would connect the electric wire extending from the electric wire hole of the main unit to the insertion port of the power terminal block, and then attach the main unit to the ceiling while pushing the electric wire into the ceiling. In contrast, with this configuration, in the first step, the worker inserts the electric wire 42 into the electric wire hole 62-2, and then attaches the main unit 60 to the mounting part. Then, in the second step, the worker folds back the electric wire 42 inserted into the electric wire hole 62-2 while it is still loose in the internal space 70 of the lighting fixture 1, and connects it to the insertion port 41. As a result, the electric wire 42 extending from the electric wire hole 62-2 can be easily connected to the insertion port 41 that opens in the downward direction D, which is different from the upward direction U, which is the mounting direction to the mounting part, simply by folding back. At this time, since the main unit 60 is fixed to the mounting part, construction is easy. And the electric wire 42 connected to the electric wire hole 62-2 and the insertion port 41 is accommodated in the internal space 70 of the lighting fixture 1 in a loose and folded back state. Therefore, there is no need to push the excess electric wire 42 pulled out from the mounting portion to the back side of the mounting portion when attaching the main unit 60 to the mounting portion, making installation easier. Also, by pushing the electric wire to the back side of the mounting portion as in the past, it is possible to prevent poor connection of the electric wire caused by stress being applied to the electric wire.

According to the first embodiment, the method of mounting the lighting fixture 1 includes a first step of mounting the main unit 60 to the mounting portion after inserting the electric wire 42 into the electric wire hole 62-2. The method of mounting the lighting fixture 1 includes a second step of folding back the electric wire 42 inserted into the electric wire hole 62-2 while it is still loose in the internal space 70 and connecting it to the insertion port 41. The method of mounting the lighting fixture 1 includes a third step of fixing the partition plate 63 to the bottom surface of the mounting portion side in a plan view between the electric wire 42 and the lighting device 30 and the storage battery 31 after connecting the electric wire 42 to the insertion port 41.

According to this configuration, in the third step, after the worker connects the electric wire 42 to the insertion port 41, the partition plate 63 is fixed to the bottom surface of the mounting portion side in a plan view between the electric wire 42 and the lighting device 30 and the storage battery 31. As a result, the partition plate 63 separates the electric wire 42 from the lighting device 30 and the storage battery 31 in the internal space 70 of the lighting fixture 1. As a result, the partition plate 63 protects the electric wire 42 by separating interference from the worker performing maintenance on the lighting device 30 or the storage battery 31 that reaches the electric wire 42 side, and does not interfere with the electric wire 42 and does not cause adverse effects. Therefore, defects caused by contact between the electric wire 42 and the lighting device 30 or the storage battery 31, or the worker's tools or hands, etc. during maintenance can be reduced.

1 Lighting fixture, 10 Cover assembly, 10-1 Screw, 10-3 Screw, 11 Cover front part, 12 Guide metal fitting, 13 Cover side part, 15 Display port, 20 Light source part, 21 Emission port, 27 Heat sink, 30 Lighting device, 31 Storage battery, 40 Power terminal block, 41 Insertion port, 42 Electric wire, 60 Main unit, 61 Cover part mounting member, 62-2 Electric wire hole, 63 Partition plate, 70 Internal space, 90 Waterproof packing.

Claims (8)

a circular main unit having an electric wire hole through which an electric wire extending from the mounting portion is inserted;
a cylindrical cover assembly that covers the main unit and has an exit port through which light is emitted;
the main unit has a power terminal block having an insertion port to which the electric wire is connected, the insertion port opening in a direction different from a direction in which the main unit is attached to the attachment portion;
The wire hole and the power terminal block are arranged on the surface of the main unit facing the cover assembly, and are arranged close together in a position aligned with the side of the cover assembly on the outer periphery of the main unit, so that the wire hole and the power terminal block are concentrated in a portion of the surface of the main unit facing the cover assembly with a short distance between them when viewed in a plane. The lighting fixture according to claim 1, wherein the insertion port opens in the direction opposite to the direction of attachment to the mounting part, and the electric wire is connected. The lighting fixture according to claim 1 or 2, which has an internal space formed to store the wire connected to the wire hole and the insertion opening in a loose and folded-back state. The lighting fixture according to any one of claims 1 to 3, wherein the main unit holds the power terminal block. The lighting fixture described in any one of claims 1 to 4, wherein the main unit holds a lighting device at a location different from the wire hole and the power terminal block on the bottom surface of the mounting portion side and toward the center of the main unit when viewed in a plan view. the main unit has a partition plate that separates the electric wire and the lighting device in a plan view and faces in a direction opposite to a mounting direction of the main unit from a surface of the main unit facing the cover assembly ,
The lighting fixture according to claim 5 , wherein the power supply terminal block is disposed, in the plan view, partly on the lighting device side with the partition plate therebetween. The lighting fixture according to claim 5 or 6, wherein the main unit includes a storage battery detachably attached to the lighting device on a central side of the main unit in a plan view. The lighting fixture according to claim 7, which is dependent on claim 6, wherein the partition plate extends from the face of the main unit facing the cover assembly in a direction opposite to the mounting direction to the mounting portion , and separates the electric wires from the lighting device and the storage battery in a planar view .

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