JP6024914B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device.

  In recent years, lighting devices using LEDs as light sources instead of conventional incandescent lamps and discharge lamps have become widespread.

  For example, Patent Document 1 discloses a projector that is an illuminating device mainly used outdoors and uses a light source as an LED. This type of projector requires a very large amount of light as compared with a lighting device used for indoor base lighting or the like. Therefore, the power supply unit that supplies power to the LED must be large.

  In the conventional example described in Patent Document 1, a power supply unit is integrally provided in a main body provided with an LED and a reflecting mirror, but it is also suggested that the power supply unit is separated from the main body.

JP 2011-175868 A

  By the way, when the main body and the power supply unit are separated, it is necessary to connect the main body and the power supply unit with a power feeding wire. Further, as the number of LEDs included in the main body increases, the number of power supply circuits (AC / DC converters) constituting the power supply unit and the number of electric wires also increase. And when connecting a main body and a power supply unit with many electric wires, there exists a problem that an electric wire is drawn and handled.

  This invention is made | formed in view of the said subject, and it aims at reducing the effort concerning the routing and handling of an electric wire.

  The lighting device of the present invention includes a light source and a lighting fixture having a main body that holds the light source, and a power supply unit that supplies power for lighting to the light source, and each of the power supply units supplies the power. Power supply device, a plurality of electric wires having one end connected to the output end of each power supply device, and a case for housing a part of the power supply device and the plurality of electric wires, the plurality of electric wires, In addition to being collectively covered with a sheath made of an insulating material outside the case, an electrical connection portion that is electrically connected to the luminaire is provided at each end.

  In this lighting device, a connection box is provided that is formed in a bottomed cylindrical shape with one surface open and accommodates the electrical connection portion, and has a plurality of connection portions connected to the electrical connection portion, and a bottomed surface with one surface open. It is preferable that the lighting fixture includes a wire storage portion that is formed in a cylindrical shape and stores the plurality of connection portions inside, and the connection box is attached to the main body so as to close an opening of the wire storage portion.

  In this lighting device, the case has a cylindrical case main body that opens at least on one end side, and a lid that closes the opening of the case main body, and the lid has an insertion hole through which the electric wire is inserted. And an insertion hole through which a power supply line for supplying power to the power supply device from the outside is inserted.

  In the lighting device of the present invention, a plurality of electric wires are collectively covered with a sheath made of an insulating material outside the case, and an electric connection portion is provided at each end, so that it takes time and effort to route and handle the electric wires. There is an effect that it can be reduced.

1 shows an embodiment of a lighting device according to the present invention, (a) is a perspective view of a state in which a lighting fixture and a power supply unit are connected by a cable, and (b) is a state in which the lighting fixture and the power supply unit are not connected by a cable. It is a perspective view. It is a top view of the power supply unit same as the above. It is a front view of the power supply unit same as the above. It is side surface sectional drawing of the power supply unit same as the above. It is front sectional drawing of the power supply unit in the same as the above. It is a perspective view of the lighting fixture in the same as the above. The lighting fixture in the same as the above is shown, (a) is a plan view, (b) is a side view, and (c) is a rear view.

  Hereinafter, an embodiment of a lighting device according to the present invention will be described in detail with reference to FIGS. In addition, although the illuminating device of this embodiment is a projector installed outdoors, it is not the meaning limited to this, The technical thought of this invention is applicable also to illuminating devices other than a projector.

  The illuminating device of this embodiment is provided with the lighting fixture 1, the power supply unit 4, the power cable 5, etc. as shown in FIG. However, in the following description, unless otherwise specified, each direction of up, down, left, and right in FIG. 1 is defined.

  As shown in FIGS. 6 and 7, the lighting fixture 1 holds an LED (not shown) as a light source, a reflector (not shown) that reflects light emitted from the LED forward, the LED, and the reflector. It comprises an instrument body 2, a support fitting (arm) 3 that supports the instrument body 2, and the like.

  The instrument body 2 is formed in a truncated cone shape whose front surface is opened by a metal material. A plurality (seven in this embodiment) of LEDs are attached to the inner bottom surface of the instrument body 2. Further, a reflector is attached to the inside of the instrument body 2. Therefore, the light radiated from each LED is directly or directly reflected by the reflecting plate and irradiated forward from the opening on the front surface of the instrument body 2. Note that a cover 11 made of a disk-shaped glass plate is attached to the front surface of the instrument body 2 via a packing (not shown) by an annular mounting frame 10.

  On the rear surface of the instrument body 2, a large number of rectangular flat plate-like heat radiation fins 20 are erected at intervals. That is, the heat generated by the plurality of LEDs is conducted to the instrument body 2 and is radiated into the air by the radiation fins 20.

  In addition, the rear surface of the instrument main body 2 is integrally provided with a rectangular tube-shaped electric wire storage portion 23 that opens rearward. Four receptacle connectors (not shown) are accommodated in the electric wire accommodating portion 23. Each receptacle connector has four contact receptacles. Two of the four contact receivers are respectively connected to the anodes of the two LEDs via electric wires (not shown), and the remaining two contact receivers are connected to the cathodes of the two LEDs via electric wires (not shown). Each is connected. However, since the number of LEDs is seven, in one of the four receptacle connectors, two contact receivers are respectively connected to the anode and cathode of one LED, and the remaining two contact receivers are connected to any LED. Is not connected.

  Further, a pair of support bases 21 that rotatably support the arm 3 are provided on the left and right ends on the rear surface of the instrument body 2 (see FIG. 7). The support base 21 has a cylindrical shape whose axial direction is the left-right direction, and a screw hole (not shown) is formed at the center of the bottom surface. A disc-shaped angle display plate 22 is attached to the left support base 21. The angle display plate 22 is engraved with an angle scale (not shown) centered on the screw hole of the support base 21, and the angle of the arm 3 with respect to the instrument body 2 can be known from the scale.

  In the arm 3, a fixed plate 30, a pair of arm pieces 31 that rise obliquely upward from the left and right ends of the fixed plate 30, and a support piece 32 that rises upward from the tip of each arm piece 31 are integrally formed by a metal plate. Become.

  In the fixing plate 30, a circular fixing hole 300 passes through substantially the center, and a semicircular arc-shaped long hole 301 centering on the fixing hole 300 passes behind the fixing hole 300. Then, the fixing plate 30 is fixed to a lighting stand or the like by a bolt (not shown) inserted through the fixing hole 300 and a bolt (not shown) inserted through the long hole 301. Further, by loosening the bolt inserted into the long hole 301, the direction of the arm 3 (direction of the lighting fixture 1) can be changed within a range of about 180 degrees.

  Each support piece 32 has a circular insertion hole (not shown) passing through the tip. Therefore, the arm 3 can rotatably support the instrument body 2 by screwing the bolt 33 inserted into the insertion hole into the screw hole of the support base 21.

  As shown in FIG. 4, the power supply unit 4 includes four power supply devices 40, a plurality (14) of wires (not shown), one end of which is connected to the output end of each power supply device 40, A case 41 or the like for storing a part is included. Each power supply device 40 includes a power conversion circuit (not shown) that converts AC power fed from a commercial power system through the feeder line 7 into DC power, and a housing 400 that houses the power conversion circuit therein. And have. The casing 400 is formed in a flat rectangular box shape by processing a metal plate.

  The case 41 includes a rectangular tube-shaped case main body 410 that is open at both front and rear ends, and two lid portions 411 and 412 that close the opening of the case main body 410. As shown in FIG. 5, the case main body 410 has protrusions 4100 protruding from the inner side surfaces on both the left and right sides and facing the inner side surfaces on both the upper and lower sides along the front-rear direction. Then, the end portions of the two mounting plates 42 are locked in gaps 4101 formed between the protrusions 4100 and the inner surfaces on both the upper and lower sides.

  The mounting plate 42 is made of a rectangular metal plate that is long in the front-rear direction. Then, two power supply devices 40 are fixed to each mounting plate 42 so as to be aligned in the front-rear direction using a pair of mounting members 43 (see FIGS. 4 and 5). That is, when the mounting plate 42 having two power supply devices 40 attached on one side is inserted into the case body 410 from the front side, the left and right ends of the mounting plate 42 are either the upper pair of gaps 4101 or the lower pair of lower portions. Locked in the gap 4101. Each mounting plate 42 is fixed to the case body 410 by screwing with a plurality of screws 44 from the outside of the case body 410.

  In addition, the case body 410 has pedestals 4102 projecting from the front and rear ends of the lower surface. A rectangular plate-shaped fixing bracket 45 is screwed to each pedestal 4102. Each fixing bracket 45 protrudes from both ends of the case body 410 in the front-rear direction, and a screw insertion hole 450 is provided in the protruding portion (see FIG. 2). Then, screws (not shown) that are inserted through these screw insertion holes 450 are screwed and fixed to a fixed part (not shown) such as an illumination stand.

  The lid portions 411 and 412 are formed in a rectangular flat plate shape by a metal plate. One lid 411 is screwed to the front end of the case body 410, and the other lid 412 is screwed to the rear end of the case body 410.

  The front lid portion 411 passes through an insertion hole (not shown) through which the cable 5 is inserted and an insertion hole (not shown) through which the feeder 7 is inserted. The cable 5 is fixed to the lid portion 411 by a so-called cable gland 46. Further, the power supply line 7 is fixed to the lid portion 411 with a stopper 47.

  The cable 5 is composed of a 16-core cabtire cable in which 16 electric wires are collectively covered with a sheath made of an insulating material (vinyl or rubber). These electric wires (not shown) are connected to the output ends of the power supply devices 40, respectively.

  A connection box 6 is provided at the tip of the cable 5. The connection box 6 is formed in a bottomed cylindrical shape having one surface open and an outer flange 60 at the open end. The cable 5 is inserted into a through-hole penetrating the bottom surface of the connection box 6, and the cable 5 is fixed to the connection box 6 by a cable gland 50.

  Four plug connectors 51 are accommodated inside the connection box 6. Each plug connector 51 has four contacts 510 (see FIG. 3). Then, two of the four contacts 510 are connected to the output terminal on the positive side of one power supply device 40 via an electric wire (not shown), and the remaining two contacts 510 are connected to the power source via an electric wire (not shown). The device 40 is connected to the output terminal on the negative electrode side. However, in one of the four plug connectors 51, two contacts 510 are connected to the positive and negative output ends of one power supply device 40, and the remaining two contacts 510 are connected to any power supply device 40. Not.

  These four plug connectors 51 are separately connected to the four receptacle connectors housed in the electric wire housing part 23. That is, when the contact 510 of each plug connector 51 and the contact receptacle of each receptacle connector are brought into contact with each other, the output end of each power supply device 40 and the anode and cathode of each LED are electrically connected via the cable 5. The

  Further, the packing 24 is fitted into a groove formed in the rear end surface of the electric wire storage portion 23 (see FIG. 1B). Then, the outer casing 60 of the connection box 6 is screwed to the rear end surface of the electric wire storage portion 23 via the packing 24, so that the receptacle connector and the plug connector 51 are sealed space formed by the connection box 6 and the electric wire storage portion 23. (See FIG. 1A).

  As described above, in the lighting device of the present embodiment, a plurality of electric wires that connect the four power supply devices 40 and the seven LEDs are combined into one cable 5, and an electric connection portion is provided at the tip of each electric wire. (Plug connector 51) is provided. Therefore, compared with the case where the luminaire 1 and the power supply unit 4 are connected by a plurality of electric wires, it is possible to reduce the time and effort required to wire and handle the electric wires.

  Further, since a plurality of electric wires are connected by a connector, there is an advantage that the wiring work is simplified. Further, by storing the connector (receptacle connector and plug connector 51) in a sealed space composed of the electric wire storage portion 23 and the connection box 6, it is possible to easily improve waterproofness.

1 Lighting fixture 4 Power supply unit 5 Cable (electric wire, sheath)
40 Power supply
41 cases
51 Plug connector (electrical connection)

Claims (3)

A luminaire having a light source and a main body for holding the light source, and a power supply unit for supplying power for lighting to the light source,
The power supply unit houses a plurality of power supply devices each supplying the power, a plurality of electric wires having one ends connected to output ends of the power supply devices, the power supply device, and a part of the plurality of electric wires. With a case,
The plurality of electric wires are collectively covered with a sheath made of an insulating material outside the case, and an electrical connection portion that is electrically connected to the luminaire is provided at each end. .   A connection box that is formed in a bottomed cylindrical shape with one surface open and accommodates the electrical connection portion inside, and is formed in a bottomed cylindrical shape with a plurality of connection portions connected to the electrical connection portion and one surface open. 2. The electric wire storage part that accommodates the plurality of connection parts inside the lighting fixture, and the connection box is attached to the main body so as to close an opening of the electric wire storage part. Lighting equipment.   The case has a cylindrical case main body that opens to at least one end side, and a lid that closes the opening of the case main body, and the lid includes an insertion hole through which the electric wire is inserted, and the outside from the outside The lighting device according to claim 1, further comprising an insertion hole through which a power supply line for supplying power to the power supply device is inserted.

Images