JPH03272507A - Illumination fixture - Google Patents

Abstract

PURPOSE:To simplify the configuration and decrease the number of parts used, by furnishing the body of an illumination fixture having a light source on feeder cables through which low voltage power is supplied, and thereby allowing a member for electric connection of the body of an illumination fixture to work also as a member to generate mechanical connection. CONSTITUTION:An arrangement according to the present invention comprises a power supply part for supplying low voltage power, a plurality of props 3 installed at this power supply part protrudingly, a plurality of feeder cables 4 connected with the props 3 and feed the electricity from the power supply part, and a body 10 of illumination fixture which includes a light source supplied with electricity through these feeder cables 4 and which is mounted on them. That is, the power from the power supply part is fed, and the fixture body 10 is mounted on the feeder cables fixed to the props 3, and low voltage power is supplied to the light source 15 of the fixture body 10 through the feeder wires 4. Thereby the configuration is simplified, and the number of parts used is decreased.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a method for attaching a lighting equipment main body to a power supply line,
The present invention relates to a lighting fixture that supplies power to a light source from this power supply line.

(Prior Art) Conventional lighting equipment of this type includes: -Power is supplied to the light source using, for example, a commercial alternating current voltage.

In this case, due to insulation problems and the like, the feeder line that electrically connects the lighting fixture body and the fixture that mechanically connects the lighting fixture body are separate.

Furthermore, in recent years, lighting fixtures in which the main body of the lighting fixture is held by a power supply line have been known.

(Problems to be Solved by the Invention) However, even if the members for mechanically connecting the lighting equipment main body and the members for electrically connecting it are provided separately, the structure is complicated and the number of parts increases. have.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a lighting fixture that has a simple structure and a reduced number of parts.

[Structure of the invention]

(Means for Solving the Problems) A lighting device according to claim 1 includes: a power supply section that supplies low-voltage power; a plurality of support sections protruding from the power supply section; and connections to these support sections. The lighting equipment is equipped with a plurality of power supply lines that supply power from a power supply section, and a lighting fixture body that has a light source that is supplied with power from these power supply lines and is attached to these power supply lines.

The lighting device according to claim 2 is the lighting device according to claim 1, in which the lighting device main body has a plastic mirror provided facing the light source, and this plastic mirror is rotatably attached to the power supply wire. It is.

In the lighting device according to claim 3, in the lighting device according to claim 2, the plastic mirror is mounted on the rotation axis of the power supply line, and the light source and the weight on the light source side are mounted at symmetrical positions about the rotation axis. It is equipped with a balancer to maintain balance.

(Function) The lighting device according to claim 1 supplies power from the power supply section, attaches the lighting device main body to the power feed line attached to the support column, and connects the light source of the lighting device body from the power feed line to the light source of the lighting device main body. The lighting device according to claim 2, characterized by voltage power, is characterized in that the lighting device according to claim 1
In the described luminaire, the plastic mirror of the luminaire body is rotatable relative to the power supply wire.

The lighting device according to claim 3 is the lighting device according to claim 2, in which the balancer maintains balance with respect to the weight of the light source.

(Embodiment) An embodiment of the lighting fixture of the present invention will be described below with reference to a hanging type lighting fixture shown in the drawings.

In FIGS. 1 to 3, reference numeral 1 designates a cylindrical base body that is closed at both ends and is attached to a ceiling, etc. Inside this base body 1, a power supply section 2 shown in FIG. A connection plug (not shown) is connected to the supply section 2 . Further, locking bodies 3 are attached to the base body 1 as rod-shaped support portions that are insulated in horizontal directions opposite to each other in a linear manner. Two power supply lines 4 formed of conductive bare wires without insulation coating are hung in balance from the ends of this locking body 3, and the lower ends of these power supply lines 4 are respectively A weight body 5 is attached.

Reference numeral 10 denotes a lighting equipment main body, and this lighting equipment main body 10 collects current from a power supply line 4 to both sides of a dichroic mirror 11, which is a plastic mirror with a concave surface formed in the front, and rotates the dichroic mirror 11. , a fixture 12 for sliding fixation is attached, and a conductive straight rod-shaped support 13 is attached to each of these fixtures 12, and a porcelain socket 14 is inserted between one end of these supports 13 as a light source. A lamp 15 is attached thereto, and a handle 16 as an insulating balancer for balancing the weight of the ceramic socket 14 and the lamp 15 is attached at a symmetrical position such as in a point-symmetrical direction between the other ends.

As shown in FIG. 4, this lamp 15 is made of a glass lamp as a reflector having a light emitting part 17 and a concave curved surface facing the dichroic mirror 11 so as to enclose the light emitting part 17. A mirror 18 is provided.

Further, the dichroic mirror 11 has a wall thickness of 125 mm, for example.
Lamp mirror 18, a substrate made of a heat-resistant plastic light-transmitting or non-light-transmitting material, which is a thin member of p@
An optical multilayer film is formed on the surface of a substrate made of a transparent or non-transparent material such as glass. This optical multilayer film is constructed by alternately laminating, for example, titanium oxide (TiO2) film layers and silicon oxide (Si(h)) film layers, and the thickness and number of these film layers are determined by Of the luminous flux from the light emitting part 17, visible light is reflected and infrared light is transmitted.In addition, in the case of a translucent material, it may be made to transmit.Also, both supports 13 The lamps 15 are insulated from each other, and power is supplied to the lamps 15 from the respective power supply lines 4 via the respective fixtures 12 and supports 13.

Next, the power supply unit 2 will be explained with reference to FIG.

This power supply section 2 is connected to a commercial AC power source 21 via a connection plug (not shown), and to a filter 23 via a fuse 22. This filter 23 is composed of a Zener diode 24, a capacitor 25, an inductor 26, and a Zener diode 27. Also,
A rectifier circuit 28 such as a diode bridge is connected between the output terminals of this filter 23, and between the output terminals of this rectifier circuit 28 are connected the collector-emitter of a transistor 31, the resistor 32, the collector-emitter of a transistor 33, and a resistor. 34 is connected, and feedback diodes 35 and 36 are connected between both ends of the transistor 31 and the resistor 32, and between both ends of the transistor 33 and the resistor 34, respectively.

One end of the primary winding 37I of the saturable current transformer 37 is connected to the connection point of the feedback diode 35, 36, and the saturable current transformer is connected between the base of the transistor 31 and the emitter of the transistor 31 via the resistor 32. 37 is connected, and a second secondary winding 37c of the saturable current transformer 37 is connected between the base of the transistor 33 and the emitter of the transistor 33 via the resistor 34. . Furthermore, the second secondary winding 37c includes an auxiliary winding 37d.
and a series circuit of thyristor 38 are connected, the gate of this thyristor 38 is connected to the emitter of the transistor 33 via a Zener diode 39,
A parallel circuit of a resistor 41 and a capacitor 42 is connected between the gate and cathode of the transistor 8. In addition, the rectifier circuit 28
A series circuit of a resistor 43 and a capacitor 44 is connected between the output terminals of the resistor 43 and a capacitor 44. A diode 45 is connected between the connection point of the resistor 43 and the capacitor 44 and the collector of the transistor 33. A constant voltage element 46 is connected between the connection point and the base of the transistor 33. Furthermore, the rectifier circuit 2
Between the output terminals of 8, two voltage dividing capacitors 51,
52 are connected in series, and the connection point of these capacitors 51 and 52 is connected to the input winding 531 of the voltage converter 53 for step-down.
The input winding 53M is connected to one end of the input winding 53M, and the other end of the input winding 53M is the primary winding 37! of the saturable current transformer 37! connected to the other end. The lamp 15 is connected to the output winding 53b of the output glass 53 via the power supply lines 4, 4.

Next, the operation of the above embodiment will be explained.

First, as shown in FIG. 6, for example, the lamp 15 and dichroic mirror 11 are slid up and down using the handle 16 to change the irradiation height, and
The irradiation angle is varied by changing the angles of the lamp 15 and dichroic mirror 11 around .

When the power is turned on in this state, the 100V AC from the commercial AC power supply 21 passes through the filter 23 and is rectified by the rectifier circuit 28. When the capacitor 44 is charged, the constant voltage element 46 is turned on, and the transistor 33 A base current is supplied to the transistor 33, and the transistor 33 is turned on. Then, the primary winding 37M of the saturable current transformer 37 is saturated, turning on the transistor 31, and then turning on the transistor 31 and the transistor 33 alternately, so that the output winding 53b of the catalytic transformer 53 is turned on. A low voltage of 12V is induced, and the lamp 15 is lit at high frequency via the power supply line 4.

The light from the lamp 15 is irradiated onto a dichroic mirror 11, which reflects visible light and transmits infrared rays to prevent the irradiated object from being heated.

Then, for example, when the two power supply lines 4.4 are short-circuited, the Zener diode 39 is turned on and the thyristor 38 is turned on, thereby stopping the base current of the transistor 33 and turning off the transistor 33. Power supply section 2
The output from the terminal is stopped to prevent the risk of short circuit.

Further, in the above embodiment, the output of the power supply section is stopped in the event of a short circuit, but the output may be simply reduced without being stopped.

Further, another embodiment will be described with reference to FIGS. 7 and 8.

In this embodiment, as shown in FIGS. 7 and 8, a pipe body 61 serving as two substantially parallel support pillars bent into an L-shape at a slightly acute angle has a structure between the tips of the short sides 6h. , a cylindrical base portion 62 with a hollow interior and closed ends.
are attached perpendicularly to these pipe bodies 61. A power supply section 2 is housed inside the base section 62, and a connection plug 64 is connected to the power supply section 2. Further, the bent portion of the pipe body 61 forms a leg portion 61b, and an insulating mounting body 64 is provided at the tip of the long side portion 61c. A power supply line 4 is stretched between the power supply part 2 of the base part 62 and the mounting body 64, and between these power supply lines 4, the lighting fixture main body 10 is connected as shown in FIGS. 1 to 3. is installed.

〔Effect of the invention〕

According to the lighting device according to claim 1, by providing the lighting device main body having a light source on the power supply line that supplies low-voltage power, the lighting device main body can be mechanically connected to the electrically connecting member. Since the same members can be used in common, the configuration can be simplified and the number of parts can be reduced.

According to the lighting fixture according to claim 2, in addition to the lighting fixture according to claim 1, a plastic mirror is rotatably attached to the power supply wire, so that the direction of irradiation from the light source can be varied.

According to the lighting fixture according to claim 3, in addition to the lighting fixture according to claim 2, a balancer is provided in a direction symmetrical to the light source to maintain balance with the weight on the light source side, so that balance can be easily maintained. .

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the lighting fixture of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a plan view of the same, FIG. 4 is a partially cutaway side view of the same, and FIG. 6 is a circuit diagram of the same without the power supply section, FIG. 6 is a diagram showing the state of use of the same, FIG. 7 is a front view showing another embodiment, and FIG. 8 is a side view of the same. 2. Power supply section, 3. Locking body as a support section, 4.
- Power supply line, ID...Lighting device main body, 11...Dikuroitsutami 7-115 as a plastic mirror...Lamp as a light section, 61..Pipe body as a support section.

Claims (3)

[Claims] (1) A power supply unit that supplies low-voltage power, a plurality of pillars protruding from the power supply unit, and a plurality of power supply lines that are connected to these pillars and feed power from the power supply unit. , A lighting fixture comprising a light source supplied with power from these power supply lines and a lighting fixture body attached to these power supply lines. (2) Claim 1 characterized in that the lighting fixture body has a plastic mirror provided opposite to the light source, and the plastic mirror is rotatably attached to the power supply wire.
Lighting equipment as described. (3) A claim characterized in that the plastic mirror is mounted on the rotation axis of the power supply line, and is equipped with a light source and a balancer that balances the weight of the light source side at symmetrical positions with respect to the rotation axis. The lighting equipment according to item 2.