JP3150972U - Fluorescent light dummy tube - Google Patents

Abstract

The present invention provides a fluorescent lamp dummy tube that can quickly respond to the fluorescent lamp fixtures of each manufacturer without producing many kinds of dummy tubes in a two-lamp type fluorescent lamp fixture. A fluorescent lamp that is mounted between a pair of sockets to which one of two fluorescent lamps of a two-lamp series fluorescent lamp fixture having an inverter-type ballast is mounted and lights the other fluorescent lamp. In the dummy tube 20, the tube 22 provided between the socket pair and provided with the electrode pins 22A electrically connected to the sockets at both ends is connected between the electrode pins at both ends, and the other fluorescent lamp is energized. A connection circuit 23 to be connected, an inductor connection terminal 25 provided in the middle of the connection circuit, an inductor 27 connected to the connection terminal in an exchangeable manner and having a resistance component selected according to the output characteristics of the inverter-type ballast; . [Selection] Figure 2

Description

  The present invention relates to a fluorescent lamp dummy tube, and more particularly, to a dummy tube that can quickly cope with fluorescent lamp fixtures of various manufacturers without producing many kinds of two-lamp type fluorescent lamp fixtures.

  In offices, stores, factories, etc., it is common to illuminate the entire room by attaching a large number of two-lamp fluorescent lamps to the ceiling. There are a parallel type and a series type in this two-lamp type fluorescent lamp apparatus, but the actual situation is that the series type which is excellent in terms of performance and price is widespread.

  Recently, energy saving has been screamed, and fluorescent lamps are also used to save power by turning off one lamp when bright lighting with two lamps is not required, such as in the daytime. When one lamp is removed from a lamp-type fluorescent lamp fixture, the other lamp is extinguished.

  Therefore, in a series type two-lamp type fluorescent lamp fixture, instead of a normal fluorescent lamp, a fluorescent lamp dummy tube that connects between two opposing sockets of the fluorescent lamp fixture with a connection means having a small DC resistance component is used, and the remaining It has been proposed to save energy by turning on a single lamp (Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4).

JP-A-53-45071 Japanese Utility Model Publication No. 56-130296 JP 2000-208238 A JP 2007-311226 A

  However, since the electrical characteristics of inverter type ballasts vary depending on the manufacturer and product number in fluorescent lamp fixtures, measure the electrical characteristics of the inverter type ballast for each manufacturer and product number and select the DC resistance component of the connection means. The dummy tube had to be manufactured, and in fact, 30-40 kinds of fluorescent lamp dummy tubes were manufactured and in stock.

  This invention makes it a subject to provide the fluorescent lamp dummy tube which enabled it to respond | correspond to the fluorescent lamp apparatus for every manufacturer or every product number, without manufacturing many types in view of this point.

  Therefore, the fluorescent lamp dummy tube according to the present invention connects two energization circuits in series between the output terminals of an inverter type ballast that uses a commercial power source as a power source, and lights the fluorescent lamps of both energization circuits. In the two-lamp in-line type fluorescent lamp fixture, the fluorescent lamp dummy tube that is mounted between the pair of sockets to which one of the two fluorescent lamps is mounted and lights the other fluorescent lamp, A tube that is mounted between and provided with electrode pins that are electrically connected to the socket at both ends, a connection circuit that connects between the electrode pins at both ends, and energizes the other fluorescent lamp, and the connection A connection terminal of an inductor provided in the middle of the circuit, and an inductor connected to the connection terminal in an exchangeable manner and having a resistance component selected according to the output characteristics of the inverter type ballast And

  One of the features of the present invention is that an inductor connection terminal is provided in the connection circuit so that the inductor can be exchanged. This makes it possible to quickly manufacture fluorescent lamp dummy tubes according to each manufacturer and part number by selecting an inductor with a DC resistance component that corresponds to the electrical characteristics of the inverter ballast and attaching it to the connection terminal. There is no need to manufacture and stock many kinds of fluorescent lamp dummy tubes as in the prior art.

  The connection circuit may be constituted by a conductor wire, for example, a copper wire, but if a fuse or a thermal fuse is connected, the reliability of the fluorescent lamp dummy tube can be improved. For example, overcurrent can be prevented from flowing by the fuse, and overheating of the fluorescent lamp apparatus can be prevented by the thermal fuse.

It is a figure which shows one example of the circuit structure of the fluorescent lamp fixture provided with preferable embodiment of the fluorescent lamp dummy tube which concerns on this invention. It is a figure which shows an example of the structure of the fluorescent lamp dummy tube in the said embodiment. It is a figure which shows the state which attached the reflecting plate behind the fluorescent lamp in the said embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 and 2 show a preferred embodiment of a fluorescent lamp dummy tube according to the present invention. In the figure, the power supply circuit includes a power switch (not shown) and receives an AC voltage of a commercial power supply as an input. Output terminals H and N of the power supply circuit are connected to input terminals 1 and 2 of a known inverter type ballast 10, and a high frequency voltage is output to output terminals 3 to 8 of the inverter type ballast 10. .

  Two energizing circuits 11A and 11B are connected in series with each other at the output terminals 3 to 8 of the inverter ballast 13, and the fluorescent lamp dummy tube 20 and the fluorescent lamp 12 are connected to both energizing circuits 11A and 11B. Yes. The energization circuits 11A and 11B and the fluorescent lamp 12 have a known configuration, and details thereof are omitted.

  In the fluorescent lamp dummy tube 20, a cap 22 is fixed to both ends of a tube 21 made of polystyrene pipe, and an electrode pin 22 </ b> A that is electrically connected to a socket is fixed to the cap 22.

  The opposing electrode pins 22A are connected by a copper wire (connection circuit) 23, and an inductor connection terminal 24 is connected to the middle of the copper wire 23, and a fuse, for example, a glass tube fuse 25 having a standard of 250V, 3A. And a thermal fuse, for example, a thermal fuse 26 with a standard of 250V, 10A, and 80 ° C. is connected.

  An inductor 27 selected from about 20 types according to the output characteristics of the inverter ballast 10 is connected to the inductor connection terminal 25 in a replaceable manner.

  On the other hand, it is desirable to provide a reflector 30 behind the fluorescent lamp 12. This reflector 30 can be attached to a cover 32 of a fluorescent lamp fixture by a magnet 31. The shape of the reflecting plate 30 is not particularly limited. However, when the reflecting plate (Japanese Patent Laid-Open No. 2000-106015) developed by the present inventor is employed, the brightness equivalent to that of the two-lamp lighting is achieved despite the one-lamp lighting. You can get it.

  In the fluorescent lamp dummy tube of this example as described above, the inductor connection terminal 25 is provided on the copper wire 23 so that the inductor 27 can be replaced. Therefore, the DC resistance component corresponding to the output characteristics of the inverter ballast 10 can be changed. By selecting the inductor 27 and attaching it to the connection terminal 25, it is possible to quickly manufacture the fluorescent lamp dummy tube 20 corresponding to each manufacturer's fluorescent lamp fixture, and to manufacture and stock various types of fluorescent lamp dummy tubes as in the past. There is no need to keep it.

  Further, since the fuse 25 and the temperature fuse 26 are connected to the copper wire 23, for example, it is possible to prevent an overcurrent from flowing by the fuse 25, and the temperature fuse 26 can prevent the fluorescent lamp apparatus from being overheated. The reliability of the pipe 20 can be increased.

DESCRIPTION OF SYMBOLS 10 Inverter type ballast 11A, 11B Energizing circuit 12 Fluorescent lamp 20 Fluorescent lamp dummy tube 21 Tube 22 Base 22A Electrode pin 23 Copper wire (connection circuit)
24 connection terminal 25 fuse 26 thermal fuse 27 inductor

Claims (3)

A two-lamp series fluorescent lamp fixture in which two current-carrying circuits are connected in series between the output terminals of an inverter-type ballast that uses a commercial power source as the two-carrying-circuit fluorescent lamps. In a fluorescent lamp dummy tube that is mounted between a pair of sockets in which one of the two fluorescent lamps is mounted and lights the other fluorescent lamp,
A tube (21) mounted between the socket pair and provided with electrode pins (22A) electrically connected to the socket at both ends;
A connection circuit (23) for connecting between the electrode pins (22A) at both ends, and energizing the other fluorescent lamp (12),
Inductor connection terminal (24) provided in the middle of the connection circuit (23),
An inductor (27) connected to the connection terminal (23) in an exchangeable manner and having a resistance component selected according to the output characteristics of the inverter-type ballast (10);
A fluorescent lamp dummy tube characterized by comprising:   The fluorescent lamp dummy tube according to claim 1, further comprising a fuse (25) connected to the connection circuit (23).   The fluorescent lamp dummy tube according to claim 1, further comprising a thermal fuse (26) connected to the connection circuit (23).

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