JPH05283191A - Luminaire - Google Patents

Abstract

PURPOSE:To use only a fluorescent lamp as a light source without using a small incandescent lamp and concurrently apply the function of an auxiliary lamp to this fluorescent lamp. CONSTITUTION:A start/stable operation current is outputted to a circular fluorescent lamp 1 from a fluorescent lamp lighting device 2. An auxiliary lamp lighting device 3 has a high-frequency power source and outputs a high-frequency current to an induction coil 40. A selector switch 4 switches the operation of the fluorescent lamp lighting device 2 or the auxiliary lamp lighting device 3. The high-frequency current output from the auxiliary lamp lighting device 3 is inputted to a coil section 8 having the induction coil 40 wound on the outer periphery of the bulb 7 of the fluorescent lamp 1, the electromagnetic field is induced in the fluorescent lamp 1, and the fluorescent lamp 1 is auxiliarily lighted by the ultraviolet radiation by the excitation of mercury gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device using a fluorescent lamp, and more particularly to a fluorescent lamp which also serves as an auxiliary light such as a night light used indoors.

[0002]

2. Description of the Related Art Conventionally, there is an indoor luminaire of this type as described in, for example, Japanese Patent Application Laid-Open No. 2-257508. As shown in FIG. 5, this one has a fluorescent lamp 1 and an all-night lamp 50 as an auxiliary lamp, and lighting can be selectively switched by a pull switch 13. Night light 50
Uses a small incandescent light bulb with a light flux of about 10 lm, which is smaller than that of the fluorescent lamp 1 (about 10 lm) and is about 5 W. Only the night light 50 is turned on at bedtime, when going out, etc., and it is illuminated to a slightly dark degree. Is used as. Therefore, since the night light 50 is used by continuously lighting it for a long time, it is necessary to endure long-term use, the electric energy applied to the filament is suppressed, and the life is extended, so that the color temperature is inevitably increased. Became low, and it was lit in a reddish light color.

[0003]

However, when a conventional night light is used as an auxiliary lamp of an illuminator having a fluorescent lamp as a main light source, the light color is different from that of the fluorescent lamp, and when switching the lamp lighting, only a difference in brightness and darkness is required. However, there was a problem in that it felt visually uncomfortable due to the difference in light color. Further, even a small incandescent light bulb having a long life is about 60% shorter than the life of the fluorescent lamp as the main light source, and the night light is replaced more frequently than the replacement of the fluorescent lamp, and the replacement work is complicated. .. In addition, when a small incandescent lamp is provided as a night light in a lighting device, its mounting position must be designed so that it can be irradiated on the surface of the device and can be replaced, and the shape of the device is limited, and it is also preferable in terms of appearance. Absent. In addition, the number of parts such as small incandescent light bulb sockets increases, and the assembly process becomes complicated.

The present invention solves the above-mentioned problems and provides a lighting apparatus in which a small incandescent lamp is not used and only a fluorescent lamp is used as a light source, and the fluorescent lamp also serves as an auxiliary lamp. ..

[0005]

In order to achieve the above object, the invention of claim 1 provides a fluorescent lamp, a fluorescent lamp lighting device having a ballast for lighting the fluorescent lamp, and an electromagnetic device inside the fluorescent lamp. Lighting including an induction coil for inducing a field, an auxiliary lamp lighting device having a high frequency power source for outputting a high frequency current to the induction coil, and a changeover switch for selectively switching between operations of the fluorescent lamp lighting device and the auxiliary lamp lighting device Provide the equipment.

As the invention of claim 2, there is provided the luminaire according to claim 1, wherein the holder part of the ring type fluorescent lamp has an induction coil.

[0007]

[Function] The induction coil induces an electromagnetic field inside the fluorescent lamp by the high-frequency current output from the auxiliary lamp lighting device,
The mercury gas in the fluorescent lamp is excited, and the ultraviolet light emitted along with this excites the fluorescent substance to emit light, thereby auxiliary lighting the fluorescent lamp.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the outline of this embodiment. Reference numeral 1 is a ring-shaped fluorescent lamp, 2 is a fluorescent lamp lighting device including a ballast for controlling lighting of the fluorescent lamp 1, and 3 is an auxiliary lamp lighting device having a built-in high frequency power supply. A switching element such as an electric field transistor is used in the high frequency power supply device. Reference numeral 4 selectively energizes the fluorescent lamp lighting device 2 or the auxiliary lamp lighting device 3 with electric power from the commercial power source 5,
A changeover switch for changing over the operation of these devices. A starting current and a stable operation current are output from the fluorescent lamp lighting device 2 and input from the socket portion 6. Auxiliary lamp lighting device 3
The high-frequency current output from is input to the coil unit 8 having the induction coil 40 wound around the bulb 7 of the fluorescent lamp 1.

FIG. 2 is a sectional view of a ceiling-suspended luminaire using the configuration shown in FIG. The device body 10 is a power supply introduction hole formed by punching a power cord (not shown) at the upper center of the device.
It is suspended from the ceiling by introducing from 11, and connected to the changeover switch 4 to introduce power. The changeover switch 4 is changed over by a pull switch 13 projecting from an insertion hole 12 in the lower center of the device. The selection of the pull switch 13 is switched to a rotary type such as "all-light lighting → dimming lighting → auxiliary lamp lighting → extinction → all-light lighting". Reference numeral 14 is a circuit board on which the changeover switch 4 and the fluorescent lamp lighting device 2, the auxiliary lamp lighting device 3 and the like are mounted, and these devices are electrically connected by the covered wiring on the substrate. Reference numeral 15 is a holder for holding the lamp. A socket arm 16 is integrated on one side and a holder arm 17 is formed on the other side, which is paired with the socket arm 16, to which the instrument body 10 is fitted. Circuit board
Connector pieces 20 and 21 projecting from the holder 15 are connected to the connectors 18 and 19 mounted on the holder 14 at the same time when the holder 15 is fitted into the device. When the connector piece 20 is connected to the connector 18, the output from the fluorescent lamp lighting device 2 is supplied to the socket portion 6 by the covering wiring (not shown) in the socket arm 16. Reference numeral 22 denotes a holder, which is made of elastic synthetic resin and holds the bulb 7 of the fluorescent lamp 1. 23 is valve 7
Is a coil holder that is formed in a shape to cover the entire outer circumference of the induction coil 40 and houses the induction coil 40. The energization of the auxiliary lamp lighting device 3 to the coil holder 23 is also performed through the covered wiring 24 by connecting the connector piece 21 to the connector 19 at the same time when the holding body 15 is fitted into the device as in the socket portion 6. ..

FIG. 3 is an external view showing the details of the coil holder 23. A semi-circular arc-shaped hook portion whose inner diameter is formed at the tip of the holder arm 17 so as to cover the outer circumference of the bulb 7 of the fluorescent lamp 1.
31 is attached to the instrument body 1 side, and a lock portion 32 having the same shape as the hook portion 31 which is rotated by a shaft 30 provided at the lower end of the hook portion 31.
Are symmetrically attached to the hook portion 31. The rotation of the lock portion 32 covers the entire outer circumference of the valve 7 by connecting with the upper end of the hook portion 31, and the claw 33 on the lock portion 32 side is fixed by being locked in the groove 34 on the hook portion 31 side. Hold the fluorescent lamp 1. A coil connection terminal (35) is projected from the upper end of the hook (31) and is electrically connected by a coil connector (36) provided at the upper end of the lock (32). Inside the hook portion 31 and the lock portion 32, a coil piece (not shown) that electrically connects the coil connector 36 and the coil connection terminal 35 is arranged in a spiral shape, and the coil holder 23 serves as the fluorescent lamp 1.
Is held to form an induction coil around the bulb 7 of the fluorescent lamp 1, and the connector pieces are attached to both ends of the coil piece.
By connecting the covered wiring 24 from 21, the power is supplied from the auxiliary lamp lighting device 3.

Next, the operation of this embodiment will be described.
When the lighting of the fluorescent lamp 1 is switched from full-light lighting to auxiliary lamp lighting by the changeover switch 4, the power supply input is switched from the fluorescent lamp lighting device 2 to the auxiliary lamp lighting device 3. A high-frequency current is output from the high-frequency power supply device in the auxiliary lamp lighting device 3 by the input of this power supply. The output from the auxiliary lamp lighting device 3 is input to the coil portion 8, and the induction coil 40 of the coil holder 23 is supplied with a high frequency current. An electromagnetic field is induced from the induction coil 40 by this high frequency current, and plasma discharge is induced inside the fluorescent lamp 1. Then, the fluorescent substance is caused to emit light by the ultraviolet rays from the mercury gas excited by the plasma discharge, and the fluorescent lamp 1 is supplementarily turned on.

FIG. 4 shows another embodiment of the present invention, in which a straight tube type fluorescent lamp 1'is used as a coil holder 2 in order to serve as an auxiliary lamp.
3 is attached, and 3 is an auxiliary lamp lighting device having the same high frequency power source as in the above embodiment.

In this embodiment, the induction coil 40 of the coil connector 36 is formed by winding the bulb 7 of the fluorescent lamp 1.
The induction coil used in the present invention is not limited to this shape as long as it is an induction coil that is induced by an electromagnetic field that excites the enclosed gas. Further, the coil holder 23 may be formed of a transparent member so as not to impair the illuminance of the auxiliary lamp.

[0015]

As described above in detail, according to the lighting equipment of the present invention, the light color of the fluorescent lamp of the main light source is the same as the light color of the fluorescent lamp of the auxiliary light source that emits light by the electromagnetic field of the induction coil. Therefore, even when the lamp is switched on, there is no visual discomfort. Further, since the fluorescent lamp is also used as the auxiliary light of the lighting fixture, it is not necessary to replace the auxiliary light source lamp due to the life of the small incandescent light bulb. Moreover, since it is not necessary to provide a small incandescent light bulb as an auxiliary light in the lighting fixture, the appearance is good, and the number of parts such as a light bulb socket is reduced, so that the assembly process is simplified. Furthermore, when the auxiliary light is used as a night light, the power consumption of the induction coil is small, which leads to power saving.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of the configuration of this embodiment.

FIG. 2 is a cross-sectional view of a ceiling hanging type lighting fixture of this embodiment.

FIG. 3 is an external view showing details of a coil holder according to the present embodiment.

FIG. 4 is an external view showing another embodiment of the present invention.

FIG. 5 is an external view of a luminaire having a conventional auxiliary lamp.

[Explanation of symbols]

Fluorescent lamp: 1, fluorescent lamp lighting device: 2, auxiliary lamp lighting device: 3, induction coil: 40, changeover switch: 4.

Claims (2)

[Claims] 1. A fluorescent lamp; a fluorescent lamp lighting device having a ballast for lighting the fluorescent lamp; an induction coil for inducing an electromagnetic field inside the fluorescent lamp; a high frequency for outputting a high frequency current to the induction coil. A lighting fixture comprising: an auxiliary lamp lighting device having a power source; and a changeover switch for selectively switching operations of the fluorescent lamp lighting device and the auxiliary lamp lighting device. 2. The luminaire according to claim 1, wherein the holder portion of the ring type fluorescent lamp has the induction coil.