JP7180082B2 - lighting equipment - Google Patents

Description

The present invention relates to lighting fixtures.

Patent Literature 1 discloses an emergency lighting fixture that includes a fixture body, a light source unit, a battery unit, and a lighting unit, and is embedded in the ceiling of a passageway or corridor of a building. The light source unit, battery unit, and lighting unit are housed in the fixture body. Two mounting springs are attached to the instrument body. The lighting fixture is assembled by housing the lighting unit within the fixture body, then attaching the light source unit to the lighting unit, and then housing the battery unit within the fixture body.

JP 2017-73276 A

In the lighting fixture of Patent Document 1, the insertion port of the terminal block is exposed from the fixture body through a hole provided in the side surface of the fixture body. For this reason, the power line for receiving power supply from the commercial power source is inserted from the side of the main body, and the power line tends to protrude in the lateral direction. At this time, the width of the luminaire is increased by the power supply line, which may make it difficult to attach the luminaire to the mounting portion. In other words, the width of the lighting fixture may become larger than the diameter of the mounting hole, and the lighting fixture may not be able to be vertically inserted into the mounting hole. Alternatively, it may be necessary to insert the luminaire into the mounting hole while twisting it diagonally.

Furthermore, in the lighting fixture of Patent Literature 1, when the lighting fixture is attached to the mounting portion, there is a risk that the power wire and the mounting spring provided on the side surface of the main body will interfere with each other. Furthermore, in Patent Document 1, a lighting unit, a light source unit, and the like are attached separately in order inside the fixture body. For this reason, assembly may take time and effort.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a lighting fixture that can be easily installed.

A lighting fixture according to the present invention comprises a tubular main body, a light source unit housed in the main body, and a terminal block having a wiring insertion surface from which wiring is drawn out , the wiring insertion surface being the main body . is provided above the upper surface of the main body, parallel to the upper surface of the main body or facing the central axis of the main body, and the direction in which the wiring is pulled out from the wiring insertion surface is viewed from the direction along the central axis of the main body, Facing the inside of the main body, the upper surface of the main body does not fix the wiring drawn out from the wiring insertion surface .

In the lighting fixture according to the present invention, the wiring can be pulled out from the wiring insertion part to the upper part of the main body. Therefore, it is difficult for the wiring to protrude to the side of the lighting fixture. Therefore, it becomes easy to attach the lighting equipment to the attached portion, and the installation can be easily performed.

1 is a perspective view of a lighting fixture according to Embodiment 1; FIG. 1 is an exploded perspective view of a lighting fixture according to Embodiment 1. FIG. 1 is a cross-sectional view of a lighting fixture according to Embodiment 1; FIG. 1 is a plan view of a lighting fixture according to Embodiment 1; FIG. 2 is an enlarged view of the lighting fixture according to Embodiment 1. FIG. 1 is a front view of a lighting fixture according to Embodiment 1; FIG. 1 is a side view of a lighting fixture according to Embodiment 1; FIG. 1 is a perspective view of a terminal block according to Embodiment 1; FIG. 2 is an exploded perspective view of the light source unit according to Embodiment 1; FIG. 1 is a perspective view of a power supply unit according to Embodiment 1; FIG. 2 is an exploded perspective view of the power supply unit according to Embodiment 1; FIG. 4A and 4B are diagrams illustrating a method for assembling the lighting fixture according to Embodiment 1; FIG. It is a figure which shows the state which attached the light source unit to the main body. It is a figure which shows the state which attached the terminal block and the frame to the main body. It is a figure explaining the method of attaching the lighting fixture which concerns on Embodiment 1 to a to-be-attached part. It is a figure which shows the state which closed the spring. FIG. 2 is a diagram showing a state where the lighting fixture according to Embodiment 1 is attached to the attached portion;

A lighting fixture according to an embodiment of the present invention will be described with reference to the drawings. The same reference numerals are given to the same or corresponding components, and repetition of description may be omitted.

Embodiment 1.
FIG. 1 is a perspective view of a lighting fixture 20 according to Embodiment 1. FIG. FIG. 2 is an exploded perspective view of the lighting fixture 20 according to Embodiment 1. FIG. FIG. 3 is a cross-sectional view of lighting fixture 20 according to Embodiment 1. As shown in FIG. 3 is a sectional view obtained by cutting FIG. 4 along the line I-II shown in FIG. The lighting fixture 20 is, for example, an emergency lighting fixture. The lighting fixture 20 receives AC and DC power from an external standby power supply to illuminate the light source 5 inside the fixture. The light source 5 is, for example, a semiconductor light source. In this embodiment, the light source 5 is an LED.

The lighting fixture 20 includes a tubular main body 1 , a light source unit 14 housed in the main body 1 , a terminal block 10 and a frame 8 . The main body 1 is attached to an opening provided in a mounting portion such as a ceiling. The light source unit 14 includes a light source section 16 and a power supply unit 200 . The light source unit 16 includes the light source 5 . The power supply unit 200 supplies power to the light source unit 16 to turn on the light source 5 . A power supply unit 200 is housed in the main body 1 .

The terminal block 10 protrudes from the upper surface of the main body 1 and has a wiring insertion portion 10a. As shown in FIG. 3 , the lower end of terminal block 10 is provided inside body 1 . The wiring insertion part 10a is provided above the upper surface of the main body 1. As shown in FIG. As shown in FIG. 3, the wiring insertion portion 10a faces the central axis 27 of the main body 1. As shown in FIG. In this embodiment, the wiring insertion portion 10a is parallel to the central axis 27 of the main body 1. As shown in FIG.

(Body 1)
Body 1 has an opening at one end. The main body 1 has a first bottom surface 101 having an opening and a second bottom surface 102 facing the first bottom surface 101 . The second bottom surface 102 is the top surface of the main body 1 . The main body 1 also has a side surface 103 that connects the first bottom surface 101 and the second bottom surface 102 . The first bottom surface 101 has a collar 1011 around the opening. The flange portion 1011 is provided with a frame engaging portion 1011a for holding the frame 8, which will be described later.

Note that the central axis 27 of the main body 1 is a central axis along the direction from the first bottom surface 101 to the second bottom surface 102 and passes through the center of the main body 1 when viewed from a direction perpendicular to the upper surface. In this embodiment, the central axis 27 is perpendicular to the top surface of the main body 1 .

FIG. 4 is a plan view of the lighting fixture 20 according to Embodiment 1. FIG. FIG. 5 is an enlarged view of the lighting fixture 20 according to Embodiment 1. FIG. FIG. 6 is a front view of the lighting fixture 20 according to Embodiment 1. FIG. FIG. 7 is a side view of the lighting fixture 20 according to Embodiment 1. FIG. The second bottom surface 102 is provided with embossing holes 1a. The embossing hole 1a is fitted with an embossing 4c provided on a holder 4, which will be described later.

A terminal block opening 1b through which the terminal block 10 is inserted is formed in the second bottom surface 102 . The terminal block opening 1 b is provided across the second bottom surface 102 and the side surface 103 . The terminal block opening 1 b is blocked by the terminal block 10 .

Further, the second bottom surface 102 is formed with a holding hole 1c through which the fixture 21 is inserted. The holding hole 1c is, for example, a screw hole. The holder 4 is fixed to the main body 1 by means of the fixture 21 . The fixture 21 is, for example, a fastening member such as a screw. The main body 1 can hold the light source unit 14 by fitting the embossing holes 1a and the embossings 4c and passing the fixture 21 through one holding hole 1c formed in the upper part of the holder 4 .

The side surface 103 of the main body 1 has a pair of planar portions 1031 extending along the central axis 27 of the main body 1 and facing each other. A spring 15 is attached to each flat portion 1031 . In addition, the opposing planar portion 1031 is arranged in parallel with the terminal block opening 1b in a straight line. The terminal block 10 is housed inside the main body 1 when viewed from the direction along the central axis 27 of the main body 1. - 特許庁

(spring 15)
Spring 15 extends from side 103 of body 1 . The spring 15 has a spring attachment portion 15a attached to the plane portion 1031 and a spring arm portion 15b provided at an end portion of the spring attachment portion 15a. When the spring 15 is attached to the main body 1 , the spring arm portion 15 b is elastically deformed toward the main body 1 from a state in which the spring arm portion 15 b protrudes in the direction perpendicular to the main body 1 . That is, spring 15 closes towards side 103 . In addition, the spring arm portion 15b, together with the frame 8, holds the opening edge of the mounting portion. Thereby, the luminaire 20 is fixed to the attached portion.

(Frame 8)
The frame 8 is attached so as to cover the first bottom surface 101 of the main body 1 . The frame 8 is fixed to the collar portion 1011 . As shown in FIG. 5, the frame 8 has a plurality of hooking portions 8a pushed out in a direction to contact the main body 1, and a plurality of projecting portions 8b protruding in a half-moon shape. One or more hooking portions 8a and one or more protruding portions 8b may be provided. By rotating the frame 8 in contact with the main body 1 , the hooking portion 8 a is hooked on the frame engaging portion 1011 a of the main body 1 . The hook portion 8a may be hooked on the edge portion of the main body 1. - 特許庁Thereby, the frame 8 is held by the main body 1 . Further, when the frame 8 rotates to a predetermined position, the projecting portion 8b is caught in a hole provided in the edge portion of the main body 1. As shown in FIG. The projecting portion 8b serves as a rotation stop.

The lighting fixture 20 is, for example, an emergency lighting fixture with a separate power supply. Therefore, it is not necessary to replace the battery, and it is not necessary to remove the frame 8 after housing each part in the main body 1.例文帳に追加Therefore, the frame 8 may be fixed to the main body 1 without using detachable fasteners such as screws.

The frame 8 can be easily attached to the main body 1 by rotating. On the other hand, the frame 8 is fitted into the main body 1 or the light source unit 14 and cannot be removed without using a tool or the like. Therefore, it is possible to prevent the frame 8 from coming off unintentionally due to mischief, vibration, or the like.

(Terminal block 10)
The terminal block 10 is connected to a power source via a power line. Also, the terminal block 10 is connected to the light source unit 14 via the wiring 13 . The terminal block 10 supplies power from the power supply to the light source unit 14 .

As shown in FIGS. 4 and 5, the terminal block 10 is provided within the projection plane of the cylinder of the main body 1 and at a position away from the center of the main body 1 when viewed from the direction perpendicular to the upper surface of the main body 1 . A wiring insertion portion 10 a of the terminal block 10 faces the center side of the cylinder of the main body 1 . In other words, the wiring insertion portion 10 a faces the central axis 27 of the main body 1 . The terminal block 10 is inserted into the terminal block opening 1 b so that the output is provided inside the main body 1 when viewed from the direction along the central axis 27 . The terminal block 10 closes the terminal block opening 1b. Therefore, dust can be prevented from entering the interior of the main body 1 .

Also, the direction in which the wiring is pulled out from the wiring insertion portion 10 a is toward the inside of the main body 1 when viewed from the direction along the central axis 27 of the main body 1 . Therefore, the wiring drawn out from the wiring insertion portion 10a is connected to the power supply through the power supply arrangement area 80 shown in FIGS. In this embodiment, a power supply arrangement area 80 is provided directly above the main body 1 .

FIG. 8 is a perspective view of the terminal block 10 according to Embodiment 1. FIG. The terminal block 10 is fixed by a terminal block fixture 11 and fasteners 22 such as screws. The terminal block fixture 11 has a half-moon-shaped protrusion 11c formed on the side surface 11a. As shown in FIG. 1, the position of the terminal block 10 in the height direction with respect to the main body 1 is determined by the protrusion 11c. Screws are passed through the holes formed in the side surface 11a of the terminal block fixing bracket 11 and the side surface 103 of the main body 1, respectively. As a result, the terminal block fixing bracket 11 and the main body 1 are screwed together. Therefore, the terminal block fixing metal fitting 11 is fixed to the main body 1 .

As shown in FIG. 3 , the side surface 11 a of the terminal block fixture 11 is an extended surface of the side surface 103 . The plane portion 1031 and the side surface 11a are parallel. This can prevent the terminal block 10 from interfering with the opening of the attachment portion when the lighting device 20 is attached to the attachment portion.

Alternatively, the terminal block fixture 11 is provided on the wiring insertion portion 10a and has an upper surface 11b that protrudes horizontally with respect to the wiring insertion portion 10a. The upper surface 11 b is a protective member that covers the upper surface of the terminal block 10 and protects the terminal block 10 . The upper surface 11 b is formed longer than the upper surface of the terminal block 10 . As a result, it is possible to prevent dust and the like from accumulating in the connection port into which the power line of the terminal block 10 is inserted.

The terminal block 10 is installed so that the wiring insertion part 10a faces the central axis 27 of the cylinder, so that the connection port into which the power line is inserted is free from dust, rather than being installed perpendicular to the central axis 27. can prevent the accumulation of

(Light source unit 14)
FIG. 9 is an exploded perspective view of the light source unit 14 according to Embodiment 1. FIG. The light source unit 14 includes a lens 7, a holder 9 provided on the lens 7, and a light source substrate 6 provided on the holder. A light source 5 is mounted on the surface of the light source substrate 6 on the lens 7 side. Further, the light source unit 14 includes a heat diffusion component 23 provided on the light source substrate 6 , a holder 4 provided on the heat diffusion component 23 , and a power supply unit 200 held by the holder 4 .

The power supply unit 200 has a case 2 that houses a circuit board 3, which will be described later. Case 2 is, for example, a resin case. The case 2 is provided with a plurality of engaging claws 2ba. The power supply unit 200 is fixed to the holder 4 by engaging the plurality of engaging claws 2ba with the holder 4 .

Also, the holder 9 holds the light source substrate 6 and the lens 7 for controlling the light distribution of the light source 5 . Light source 5 , light source substrate 6 , lens 7 and holder 9 constitute light source section 16 . The holder 4 holds the holder 9 on a surface different from the surface holding the case 2 .

That is, the case 2 containing the circuit board 3 , the holder 4 , the holder 9 , the light source board 6 on which the light source 5 is mounted, and the lens 7 are integrated as a light source unit 14 . The light source unit 14 is an integrated light source ASSY. The power supply unit 200 and the light source section 16 are integrated by the holder 4 .

The central axis 27 of the main body 1 and the optical axis of the light source section 16 included in the light source unit 14 are coaxial or substantially coaxial. The optical axis of the light source unit 16 is the central axis of the irradiation direction of the light source 5 .

(Holder 4)
The holder 4 is made of, for example, a metal plate. The holder 4 is formed, for example, by bending sheet metal. The holder 4 has both the function of holding the case 2 and the function of dissipating heat generated by the light source 5 . The holder 4 has a first portion 401 , a second portion 403 , and a third portion 402 connecting the first portion 401 and the second portion 403 . The power supply unit 200 is provided between the first portion 401 and the second portion 403 .

The light source unit 16 is attached to the first portion 401 . The first portion 401 has a horizontal plane parallel to the light source substrate 6 . The third portion 402 has a vertical surface perpendicular to the light source substrate 6 . A third portion 402 faces the case 2 . The second portion 403 is provided at the far end of the third portion 402 from the light source substrate 6 . The second portion 403 is parallel to the first portion 401 .

The second part 403 comprises a screw hole 403a for fixing with the main body 1 . A fixture 21 is inserted into the holding hole 1c of the main body 1 and the screw hole 403a. The main body 1 and the holder 4 are thereby screwed together. The fixture 21 is inserted from the outside of the main body 1 into the holding hole 1c and the screw hole 403a. That is, the light source unit 14 is fixed to the main body 1 from the outside of the main body 1 .

The second portion 403 also has positioning embossments 4c. The embossing 4c and the embossing hole 1a of the main body 1 are fitted. The embossment 4c is a fitting portion that fits with the main body 1. As shown in FIG. As described above, the second portion 403 of the holder 4 is fixed in contact with the second bottom surface 102 of the main body 1 . The second part 403 is fixed to the end of the main body 1 opposite to the opening.

A third portion 402 of the holder 4 contacts the case 2 . The case 2 has projections 202 projecting in the thickness direction. The third portion 402 has an opening into which the protrusion 202 is fitted. Further, the third portion 402 has a plate end with which the hook 2ba of the case 2 is fitted. The plate edge is the side edge of the third portion 402 . The holder 4 fixes the case 2 by fitting the plate end portion of the third portion 402 and the engaging claw 2ba of the case 2 . Thus, in this embodiment, third portion 402 engages power supply unit 200 .

A first part 401 of the retainer 4 has a threaded hole for fixing the holder 9 . The first portion 401 faces the surface of the light source substrate 6 on which the light source 5 is not mounted. Between the first portion 401 and the light source substrate 6, a heat diffusion component 23 such as a heat dissipation insulating sheet is sandwiched. The heat spreading component 23 may not be provided. Also, the first portion 401 may contact the surface of the light source substrate 6 on which the light source 5 is not mounted.

An A opening 402a is formed in the third portion 402 . The first portion 401 is formed by cutting and raising a plate material, for example. When the first portion 401 is cut and raised, an A opening 402a is formed. A portion of the plate material corresponding to the A opening 402 a forms the first portion 401 of the holder 4 . As a result, the first portion 401 can be formed in such a size as to cover the back surface of the light source substrate 6 . Also, the case 2 has a convex portion 203 . The protrusion 203 is fitted in the A opening 402a.

(Holder 9)
The holder 9 has a hook portion projecting in the thickness direction of the holder 9 on the surface facing the lens 7 . The holder 9 holds the lens 7 by hooking the edge of the lens 7 on the hook. A groove having a shape similar to that of the light source substrate 6 is formed on the surface of the holder 9 opposite to the lens 7 . The position of the light source substrate 6 is fixed by this groove. Moreover, the holder 9 is fixed to the holder 4 with a screw.

(Power supply unit 200)
FIG. 10 is a perspective view of power supply unit 200 according to the first embodiment. FIG. 10 is a diagram of the power supply unit 200 viewed from direction B shown in FIG. FIG. 11 is an exploded perspective view of power supply unit 200 according to the first embodiment. The power supply unit 200 supplies power to the light source section 16 . The power supply unit 200 includes a circuit board 3 that supplies power to the light source 5 to turn on the light source 5 . The power supply unit 200 also includes a case 2 . The case 2 incorporates the circuit board 3 . Case 2 has a function of holding circuit board 3 and is smaller than main body 1 . The circuit board 3 is provided perpendicular to the direction in which the pair of plane portions 1031 are arranged.

The case 2 consists of two parts, a box side 2b and a lid side 2c. The box side 2b has an engaging claw 2ba that contacts the holder 4. As shown in FIG. The lid side 2c covers the circuit board 3 by fitting with the box side 2b. The lid side 2c holds the circuit board 3 by fitting with the box side 2b. As for the case 2, the box side 2b and the lid side 2c may be integrated. Further, the case 2 may not cover the entire circuit board 3, but may have a window partially open. Since the case 2 is made of resin, the insulation performance between the main body 1 made of metal and the circuit board 3 can be ensured.

The case 2 is provided with at least one opening 201 on the lid side 2c. A wiring 13 for electrically connecting the circuit board 3 and the terminal block 10 passes through the opening 201 . The opening 201 communicates with a notch 201 a provided on the side surface of the case 2 . The notch 201a is provided over the lid side 2c and the box side 2b. As shown in FIG. 10, the notch 201a accommodates the wiring 13 when the wiring 13 is routed from the lid side 2c on the front side to the box side 2b on the back side. By providing the notch portion 201 a , it is possible to suppress the size of the components accommodated inside the main body 1 by the wiring 13 . Therefore, an increase in size of the main body 1 can be suppressed.

Further, the box side 2b has a protrusion 202 on the surface that contacts the third portion 402 of the holder 4. As shown in FIG. The protrusion 202 penetrates through an opening provided in the holder 4 . The protrusion 202 has a groove having a width to hold the wiring 13 at its tip. After the case 2 is attached to the holder 4 , the wiring 13 is pushed into the projecting portion 202 penetrating the third portion 402 . Thereby, as shown in FIG. 2, the protrusion 202 holds the wiring 13 .

The case 2 has three holding portions 2d, 2e, and 2f for holding the lead wires 12 on the surface side of the lid side 2c. The holding portion 2d is provided on the bottom surface of the lid side 2c and has a groove for receiving a lead wire. The holding portion 2d fits and temporarily holds the lead wire 12 . This can prevent the lead wire 12 from coming into contact with the portion of the holder 4 near the light source 5 . Each of the holding portions 2e and 2f has a claw shape. The lead wire 12 is fitted and fixed to the holding portions 2e and 2f. The case 2 holds the lead wires 12 by the holding portions 2d, 2e, and 2f. Therefore, it is possible to prevent the lead wires 12 from interfering with the main body 1 and the like during assembly.

Thus, in this embodiment, the lead wire 12 and the wiring 13 are held by the case 2 . Therefore, when the power supply unit 200 is housed in the main body 1 , it is possible to prevent the lead wires 12 or the wires 13 from interfering with or getting caught on the main body 1 . Therefore, the luminaire 20 can be easily assembled.

(Lead wire 12)
The lead wire 12 electrically connects the connector provided on the surface side of the light source board 6 and the circuit board 3 . In the event of a power failure, power supplied from the outside is supplied from the circuit board 3 to the light source 5 via the lead wire 12 to turn on the light source 5 .

(Method for assembling lighting device 20)
A method for assembling the lighting device 20 will be described with reference to FIGS. 12 to 14. FIG. 12A and 12B are diagrams illustrating a method for assembling the lighting fixture 20 according to Embodiment 1. FIG. First, the light source section 16, the power supply unit 200, and the holder 4 are assembled to form the integrated light source unit 14. As shown in FIG. FIG. 12 shows the assembled state of the light source unit 14 .

Next, as indicated by the arrow in FIG. 12, the light source unit 14 is inserted into the main body 1 through the opening of the main body 1 and housed in the main body 1 . FIG. 13 is a diagram showing a state in which the light source unit 14 is attached to the main body 1. FIG. The light source unit 14 is inserted until the embossing 4c is inserted into the embossing hole 1a. Next, with the emboss 4c inserted into the embossing hole 1a, the fixture 21 is inserted into the holding hole 1c and the screw hole 403a, and the holder 4 and the main body 1 are screwed together. Thereby, the light source unit 14 is fixed to the main body 1 .

Next, as shown in FIG. 14, the terminal block 10 and the light source unit 14 are connected by the wiring 13 . Also, the terminal block 10 is attached to the main body 1 by inserting the terminal block 10 into the terminal block opening 1b. Also, the frame 8 is engaged with the flange 1011 so as to cover the opening of the main body 1 . The frame 8 is thereby fixed to the main body 1 . FIG. 14 is a diagram showing a state in which the terminal block 10 and the frame 8 are attached to the main body 1. FIG. From the above, the lighting fixture 20 is assembled. Note that the spring 15 may be attached in any process.

(Method of Attaching Lighting Apparatus 20 to Attached Part)
Next, a method of attaching the lighting device 20 to the attached portion will be described with reference to FIGS. 15 to 17. FIG. 15A and 15B are diagrams illustrating a method of attaching the lighting device 20 according to Embodiment 1 to the attached portion 24. FIG. FIG. 15 shows a state before the luminaire 20 is attached to the opening 25 of the attached portion 24 .

First, as shown in FIG. 16, the power line 26 pulled out from the attached portion 24 is connected to the wiring insertion portion 10a of the terminal block 10. Then, as shown in FIG. At this time, the portion of the power line 26 that is connected to the wiring insertion portion 10 a is arranged within the planar projection plane of the cylindrical main body 1 . Further, when the power line 26 is connected to the wiring insertion portion 10a, the direction in which the power line 26 is pulled out from the wiring insertion portion 10a is the inside of the main body 1 when viewed from the direction along the central axis 27 of the main body 1. head to Therefore, the power line 26 extending from the wiring insertion portion 10 a can be extended to the attached portion 24 directly above the main body 1 without passing through the side portion of the main body 1 .

Next, as shown in FIG. 16 , the spring 15 is contracted toward the main body 1 and the lighting device 20 is inserted into the opening 25 . FIG. 16 is a diagram showing a state in which the spring 15 is closed. The end of the spring 15 opposite to the side surface 103 of the main body 1 is provided at a position lower than the wiring insertion portion 10a in a state in which the spring is closed toward the side surface 103 . In other words, the wiring insertion portion 10a is arranged at a position higher than the upper end of the spring 15 when the spring 15 is contracted.

When the lighting device 20 is inserted into the opening 25, the deformed state of the spring 15 is released and the spring 15 is opened as shown in FIG. Thereby, the lighting device 20 is attached to the attached portion 24 . 17A and 17B are diagrams showing a state in which the lighting fixture 20 according to Embodiment 1 is attached to the attached portion 24. FIG. As described above, the lighting device 20 is fixed to the attached portion 24 by being inserted into the attached portion 24 in the direction along the central axis 27 of the main body 1 .

Next, the effects of the component arrangement of this embodiment will be described. In the lighting fixture 20 , the circuit board 3 is provided above the light source section 16 with respect to the height direction of the cylinder of the main body 1 , and the terminal block 10 is provided above the circuit board 3 . Furthermore, the light source board 6 , the circuit board 3 , and the terminal block 10 are housed inside the main body 1 when viewed from the direction along the central axis 27 of the main body 1 . With these configurations, it is possible to suppress an increase in the size of the lighting device 20 . Moreover, it is possible to prevent the wire insertion portion 10a from interfering with the opening 25 of the attached portion 24 during attachment.

Also, the wiring insertion part 10 a is provided above the upper surface of the main body 1 . Furthermore, the wiring insertion portion 10a faces the center side of the second bottom surface 102 . At this time, the wiring is pulled out toward the inside of the main body 1 from the wiring insertion portion 10 a when viewed from the direction along the central axis 27 of the main body 1 . Therefore, a space can be provided in the projected plane of the main body 1 in which the wiring is inserted and arranged. This space corresponds to the power supply arrangement area 80 . At this time, it is possible to prevent the wiring connected to the wiring insertion portion 10a from protruding from the lighting fixture 20 in the width direction. In addition, when the lighting equipment 20 is attached, the position where the wiring is arranged can be limited above the main body 1. - 特許庁

As described above, in the present embodiment, even if the wiring is connected, it is possible to suppress the size of the lighting device 20 in the width direction. In other words, the lighting fixture 20 can be attached without the power line 26 on the side of the lighting fixture 20 . Thereby, the lighting fixture 20 can be inserted so that the power line 26 does not come into contact with the opening 25 . Therefore, it becomes easy to attach the lighting fixture 20 to the to-be-attached part 24, and the lighting fixture 20 can be installed easily.

Also, the terminal block 10 is provided on the end side of the main body 1 with respect to the central axis 27 . By arranging the terminal block 10 so as not to overlap with the central axis 27, the area occupied by the terminal block 10 on the second bottom surface 102 can be suppressed. Thereby, an area for attaching the holder 4 can be secured on the second bottom surface 102 .

Furthermore, since the terminal block 10 protrudes from the second bottom surface 102 , interference between the spring 15 and the power line 26 can be suppressed compared to a structure in which the power line 26 is pulled out from the side surface 103 of the main body 1 . Further, the wiring insertion portion 10a is arranged at a position where the spring 15 does not interfere with the spring 15 when it is closed. The spring 15 is formed such that its upper end is lower than the wiring insertion portion 10a in the closed state. Therefore, interference between the spring 15 and the wiring can be prevented when the lighting device 20 is installed.

In addition, a plane portion 1031, which is a flat surface, is provided for mounting the spring 15 thereon. In order to suppress an increase in size of the lighting device 20 , the planar portion 1031 is provided so as to be recessed from the cylinder centered on the central axis 27 . Therefore, the distance between the pair of flat portions 1031 is shorter than the diameter of the cylinder centered on the central axis 27 . Here, the circuit board 3 is provided in a direction crossing the direction in which the pair of plane portions 1031 are arranged. Thereby, the circuit board 3 can be accommodated without enlarging the main body 1. - 特許庁

Further, as shown in FIG. 3, the third portion 402 is provided at a position off the central axis 27 of the main body 1. As shown in FIG. As a result, the circuit board 3 can be provided on the central axis 27 of the main body 1 and accommodated at the position of the diameter of the main body 1 . In this embodiment, the central axis 27 of the main body 1 and the central axis of the circuit board 3 included in the light source unit 14 are coaxial. With this configuration, the circuit board 3 can be formed long when viewed from the direction along the central axis 27 . Therefore, the circuit board 3 can be enlarged while suppressing the size of the lighting fixture 20 .

Further, in the present embodiment, only part of terminal block 10 is housed in main body 1 . For this reason, the range occupied by the terminal block 10 in the internal space of the main body 1 can be suppressed. Therefore, the third portion 402 can be offset from the central axis 27 of the main body 1 .

Also, a portion of the terminal block 10 is inserted inside the main body 1 . Accordingly, the wiring 13 connecting the terminal block 10 and the circuit board 3 can be protected by the main body 1 . Moreover, since the wiring insertion part 10a is provided on the upper side of the second bottom surface 102, the terminal block 10 does not need to be accommodated inside the main body 1, and the main body 1 can be made smaller. Furthermore, the space inside the main body 1 for accommodating the power supply unit 200 can be increased. Moreover, the terminal block 10 is fixed to the main body 1 with the rear side thereof held by a terminal block fixing metal fitting 11 . Therefore, the terminal block 10 can be stably fixed to the main body 1 even if the terminal block 10 is pressed when the wiring is inserted.

Next, the effects of the structure of the light source unit 14 of this embodiment will be described. The lighting fixture 20 has a holder 4 to which a power supply unit 200 and a light source section 16 are attached. Each part of the light source unit 14 can be arranged in the main body 1 by inserting the holder 4 into the main body 1 and fixing it. In this embodiment, the light source units 14 integrated by the holder 4 can be collectively attached to the main body 1 . Therefore, assembly can be made easier than when a plurality of parts are separately attached to the main body 1. - 特許庁Also, the light source unit 14 can be attached from the outside of the main body 1 . Therefore, even if the main body 1 is small, the light source unit 14 can be easily attached inside the main body 1 . The frame 8 plays a role of preventing the light source unit 14 from falling.

Also, the power supply unit 200 is attached to the holder 4 so as to be accommodated between the first portion 401 and the second portion 403 . Therefore, an increase in size of the light source unit 14 can be suppressed.

Further, the second portion 403 of the holder 4 is fixed to the second bottom surface 102 of the main body 1 from the outside of the main body 1 by means of fasteners 21 such as screws. Therefore, it is not necessary to fasten the holder 4 from the first bottom surface 101 side, that is, from the inside of the main body 1 with a tool or the like. Therefore, it is not necessary to secure a work space inside the main body 1 . Therefore, the first portion 401 can be formed with a size that covers the opening of the first bottom surface 101 . Furthermore, the main body 1 can be formed so that there is no gap between it and the first portion 401 or the light source substrate 6 in plan view. Therefore, an increase in size of the main body 1 can be suppressed.

Further, in the present embodiment, the holder 4 can be prevented from rotating with respect to the main body 1 by fitting the embossing 4c of the second portion 403 into the embossing hole 1a. Furthermore, the main body 1 and the light source unit 14 can be fixed with one fixture 21 without rotating. Therefore, the number of parts can be reduced.

Further, the projection 203 of the case 2 is fitted into the A opening 402a formed in the third portion 402. As shown in FIG. Thereby, the rigidity of the holder 4 can be reinforced by the case 2 .

Also, the third portion 402 has the effect of a heat radiation fin. Heat from the light source unit 16 is transferred to the main body 1 through the third portion 402 and radiated from the main body 1 . By using the third portion 402 as a heat dissipation surface, the heat dissipation area can be increased compared to the case where the holder 4 is not provided. Therefore, heat dissipation can be improved. Further, by dissipating heat from the main body 1, heat dissipating fins can be simplified. Therefore, the shape of the third portion 402 does not have to be a complicated shape, for example, provided with a plurality of heat radiation fins for heat radiation. Therefore, the structure of the lighting fixture 20 can be simplified.

Next, a modified example of this embodiment will be described. The lighting fixture 20 includes, for example, four light sources 5, but the number of light sources 5 mounted in the lighting fixture 20 may be one or more. Moreover, the crescent-shaped projections formed on the terminal block fixing fitting 11 and the frame 8 only need to have the function of hooking and fixing parts such as sheet metal facing the projections. good. Alternatively, the embossment 4 c may be provided on the second bottom surface 102 and the embossing hole 1 a may be provided on the holder 4 .

Moreover, the holder 4 is not limited to the structure described above, and it is sufficient that at least the light source section 16 and the power supply unit 200 are attached. For example, the power supply unit 200 may be provided on the side opposite to the second portion 403 with respect to the third portion 402 . In this case, it is preferable to provide an insertion opening for the terminal block 10 in the power supply unit 200 .

Also, the wire insertion portion 10a of the terminal block 10 does not have to face the inside of the main body 1. As shown in FIG. For example, the wiring insertion part 10a may be provided at a position beyond the central axis 27 as long as a space for inserting the wiring can be secured in the projection plane of the main body 1 .

Also, the wiring insertion portion 10 a may not be parallel to the central axis 27 . The wiring insertion part 10 a is provided above the upper surface of the main body 1 and may be parallel to the upper surface of the main body 1 or facing the central axis 27 of the main body 1 . Here, the state in which the wiring insertion portion 10a faces the central axis 27 includes any state in which the direction in which the wiring insertion portion 10a faces is inclined toward the central axis 27 from the direction perpendicular to the upper surface of the main body 1. include. In this case as well, when viewed from the direction along the central axis 27 of the main body 1, the wiring can be pulled out toward the inside of the main body 1 from the wiring insertion portion 10a. Therefore, it is possible to prevent the wiring from protruding in the width direction of the lighting device 20 .

For example, the direction in which the wire insertion portion 10a faces may be a direction that is inclined upward or downward from the direction perpendicular to the central axis 27 . Also, the wiring insertion part 10 a may be provided on the upper surface of the terminal block 10 . Also, the wiring insertion part 10a may face the upper surface of the main body 1, and the wiring may be pulled downward from the terminal block 10. As shown in FIG. In this case, it is possible to further prevent dust from accumulating in the connection port into which the wiring is inserted.

In this embodiment, the light source unit 14 and the main body 1 are fixed by the emboss 4c and the fixture 21, but other fixing methods may be used as long as the light source unit 14 and the main body 1 are fixed to each other. . For example, the second portion 403 and the second bottom surface 102 may each have engaging portions such as claws, and the engaging portions may be fitted to each other.

Moreover, the holder 4 may be fixed to the main body 1 , and the holder 4 may be fixed to the main body 1 at a portion other than the second portion 403 . Moreover, the holder 4 may be fixed to a portion other than the upper surface of the main body 1 . Also, if the light source unit 14 can be fixed to the main body 1 , the light source unit 14 other than the holder 4 may be fixed to the main body 1 .

Moreover, if the light source unit 14 can be integrated, the light source unit 14 does not need to be provided with the holder 4 . For example, the light source unit 14 may be attached directly to the power supply unit 200 . In this case also, the integrated light source units 14 can be collectively attached to the main body 1 .

Moreover, the light source unit 14 may have at least the light source 5 and a circuit board for lighting the light source 5 . Moreover, the light source unit 16 only needs to have at least the light source 5, and other components may be omitted or added depending on the application. Moreover, although the power supply line 26 is connected to the wiring insertion portion 10a in the present embodiment, a wiring other than the power supply line 26 may be connected to the wiring insertion portion 10a.

Moreover, the main body 1 is not limited to a cylindrical shape, and any shape in which the light source unit 14 is accommodated can be adopted. For example, body 1 may be polygonal or elliptical in cross-section. Moreover, the lighting device 20 is not limited to emergency use, and may be used for any purpose. Moreover, the power supply to which the terminal block 10 is connected is not limited to a standby power supply, and may be an external power supply such as a commercial power supply.

Note that the technical features described in the present embodiment may be used in combination as appropriate.

Reference Signs List 1 main body 1a embossing hole 1b terminal block opening 1c holding hole 101 first bottom surface 1011 collar portion 1011a frame engaging portion 102 second bottom surface 103 side surface 1031 plane portion 200 power supply unit 2 Case 2b Box side 2ba Interlocking claw 2c Lid side 2d Holding part 2e Holding part 2f Holding part 201 Opening 202 Projection 203 Protrusion 3 Circuit board 4 Holder 4c Emboss 401 First part 402 Third part 402a A opening 403 Second part 403a Screw hole 5 Light source 6 Light source board 7 Lens 8 Frame 8a Hook 8b Projection 9 Holder 10 Terminal block , 10a wiring insertion portion, 11 terminal block fixing bracket, 11a side surface, 11b upper surface, 12 lead wire, 13 wiring, 14 light source unit, 15 spring, 15a spring mounting portion, 15b spring arm portion, 16 light source portion, 20 lighting fixture , 21 fixture, 22 fastener, 23 heat diffusion part, 24 mounted part, 25 opening, 26 power supply line, 27 central axis, 80 power supply arrangement area

Claims (11)

a tubular body;
a light source unit housed in the main body;
a terminal block having a wiring insertion surface from which wiring is drawn ;
with
The wiring insertion surface is provided above the upper surface of the main body and is parallel to the upper surface of the main body or faces the central axis of the main body ,
the direction in which the wiring is pulled out from the wiring insertion surface is toward the inside of the main body when viewed from the direction along the central axis of the main body,
A lighting fixture , wherein the wiring pulled out from the wiring insertion surface is not fixed to the upper surface of the main body . 2. The lighting fixture according to claim 1, wherein the wiring insertion surface is parallel to the central axis of the main body. 3. The lighting fixture according to claim 1 , wherein the terminal block protrudes from the upper surface of the main body. 4. The lighting fixture according to any one of claims 1 to 3, wherein the terminal block is accommodated inside the main body when viewed from a direction along the central axis of the main body. 5. The luminaire according to any one of claims 1 to 4, wherein a lower end of said terminal block is provided inside said main body. 6. The lighting fixture according to claim 1, wherein the central axis of the main body and the central axis of the component mounting surface of the circuit board provided in the light source unit are coaxial . 7. The lighting fixture according to any one of claims 1 to 6 , wherein the central axis of the main body and the optical axis of the light source section provided in the light source unit are coaxial. the main body has a pair of flat surfaces extending along the central axis of the main body and facing each other;
The lighting fixture according to any one of claims 1 to 7 , wherein the light source unit includes a circuit board provided perpendicular to a direction in which the pair of planar portions are arranged. a spring extending from the side of the body;
9. An end portion of the spring opposite to the side surface is provided at a position lower than the wiring insertion surface in a state in which the spring is closed toward the side surface. A lighting fixture according to any one of the preceding items. 10. The lighting fixture according to any one of claims 1 to 9 , further comprising a protective member provided on the wiring insertion surface and protruding horizontally with respect to the wiring insertion surface . The lighting fixture according to any one of claims 1 to 10 , wherein the lighting fixture is fixed to the mounting part by being inserted into the mounting part in a direction along the central axis of the main body.

Images