JPH0658596U - Fluorescent light device - Google Patents

Abstract

(57) [Summary] [Object] In an illuminating device in which a light source is blinked by a switch means, it is bright at the time of lighting, problems such as contact failure in the switch means are solved, and it can be constructed at low cost. [Configuration] AC power supply 1, ballast 2, semiconductor switch 3a,
, 3f and fluorescent lamps 4a, ..., 4f are connected in series, first high resistances 5a, ..., 5f are connected in parallel to the semiconductor switch, and second high resistances 6a, 6f are connected to the fluorescent lamp. , 6f are connected in parallel, and the semiconductor switches are alternately turned on / off by the control means 7. Since a fluorescent lamp is used as a light source, it is bright, and since a contactless semiconductor switch is used as a switch means, there is no problem such as contact failure.
Since the voltage is distributed by the second high resistance, an inexpensive semiconductor switch having a low breakdown voltage can be used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fluorescent lamp device provided with a switch means for blinking a fluorescent lamp, and more specifically, for example, a fluorescent lamp arranged on the outer edge of a marking tower on which letters or a pattern is displayed is blinked by a switch means. Concerning the fluorescent light device that directs the attention of the.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there is known a lighting device in which a neon tube or an incandescent lamp is arranged on the outer edge of a sign tower or the like and this is turned on and off by a switch so that the person's attention is directed to the sign tower.

[0003]

[Problems to be solved by the device]

 However, the conventional neon tube or the device for blinking the incandescent light bulb as described above has a problem in its brightness, and as a result, there is a problem that the effect of drawing the attention of the person is insufficient. .

In order to solve the above problems, it is conceivable that the light source used in the device is a fluorescent lamp (low-pressure mercury vapor discharge lamp) brighter than a neon tube or an incandescent lamp.

Further, in the conventional device as described above, a contact switch or a relay is used as a switch means for blinking the neon tube or the incandescent light bulb, but in that case, the switch or the relay is frequently switched. The relay contacts may be welded or contact may be poor.

Therefore, it is conceivable to use a non-contact semiconductor switch as the switch means. In that case, a general semiconductor switch currently on the market has a low withstand voltage (withstand voltage), and the light source as described above is used. As a result, if a fluorescent lamp is used and high voltage is applied to it to obtain bright illumination, it is impossible to use the general semiconductor switch as described above, and a special semiconductor switch with high withstand voltage must be used. Therefore, there is a problem that the equipment becomes expensive.

In view of the above circumstances, it is an object of the present invention to provide a fluorescent lamp device which is bright at the time of lighting, can solve problems such as contact failure in the switch means, and can be constructed at low cost.

[0008]

[Means for Solving the Problems]

 A fluorescent lamp device according to a first invention of the present application is an AC power supply, a ballast connected in series with the AC power supply, a semiconductor switch connected in series with the ballast, and the semiconductor switch. And a fluorescent lamp connected in series with the semiconductor switch, a first high resistance connected in parallel with the semiconductor switch, a second high resistance connected in parallel with the fluorescent lamp, and the semiconductor switch turned on. -It is characterized by comprising a control means for turning it off. A fluorescent lamp device according to a second invention of the present application is a fluorescent lamp device that alternately flashes a plurality of fluorescent lamps, and includes an AC power source and a ballast connected in series with the AC power source. A plurality of semiconductor switches arranged in parallel with each other, each of which is connected in series with the ballast, a fluorescent lamp connected in series with each of the semiconductor switches, and connected in parallel with each of the semiconductor switches. A first high resistance, a second high resistance connected in parallel with each of the fluorescent lamps, and a control means for alternately turning on and off each of the semiconductor switches. .

[0009]

[Effect of action and device]

 Since the fluorescent lamp device according to the present invention uses the fluorescent lamp as the light source, it is possible to obtain a brighter illumination than that using a conventional neon tube or an incandescent light bulb, and to draw attention to people. The effect is great.

Further, since the contactless semiconductor switch is used as the switch means, there is no fear of contact welding or contact failure due to frequent blinking, and the reliability is high.

Further, since the first high resistance and the second high resistance are connected in parallel to the semiconductor switch and the fluorescent lamp, respectively, the terminal voltage of the AC power source of the fluorescent lamp device is a semiconductor switch. Is distributed to the terminal voltage of the semiconductor switch and the fluorescent lamp according to the ratio of the resistance value of the first high resistance connected in parallel with the H and the second high resistance connected in parallel with the fluorescent lamp. Therefore, even when a high-voltage power supply is used to obtain brighter illumination, the terminal voltage of the semiconductor switch can be lowered, and as a result, general inexpensive semiconductor switches can be used, and the device can be configured inexpensively. can do.

[0012]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an electric circuit diagram showing an embodiment of a fluorescent lamp device according to the present invention.

The illustrated fluorescent lamp device includes an AC power supply 1, a choke coil 2 as a ballast connected in series with the AC power supply 1, and a choke coil 2 arranged in parallel with each other and connected in series with the choke coil 2. Solid state relays (SSRs) 3a, 3b, ..., 3f as a plurality of connected semiconductor switches, and fluorescent lamps 4a serially connected to the SSRs 3a, 3b ,. , 4b, first resistors 5a, 5b, ..., 5f connected in parallel with each of the SSRs 3a, 3b, ..., 3f, and the fluorescent lights 4a, 4b ,. Control for turning on / off the second resistors 6a, 6b, ..., 6f connected in parallel and the SSRs 3a, 3b, ..., 3f sequentially connected to the primary side of each of the SSRs 3a, 3b ,. And a control means 7 for transmitting a signal.

Next, the operation of the fluorescent lamp device will be described. The control means 7 alternately turns on / off the respective SSRs 3a, 3b, ..., 3f, thereby alternately blinking the respective fluorescent lamps 4a, 4b, ..., 4f, that is, the respective SSRs 3a, 3b ,. Each of them is turned on for a predetermined time in a predetermined order (when one of the SSRs is turned on, all the other SSRs are turned off), so that each of the fluorescent lamps 4a, 4b, ... Then turn on the lights for a predetermined time (when one of the fluorescent lights is on, all other fluorescent lights are off).

More specifically, the control means 7 applies a primary voltage to any one of the SSRs 3a, 3b, ..., 3f according to the order and time stored in advance in the control means 7. For example, when the control means 7 applies a primary voltage to the SSR 3a, only the SSR 3a is turned on, and the alternating current generated by the alternating current power source 1 is applied to the choke coil 2, the turned-on SSR 3a and the fluorescent lamp 4a connected in series with the SSR 3a. The fluorescent lamp 4a is turned on by energizing. Further, the control means 7 does not issue a control signal to the other SSRs 3b, ...

After a predetermined time has passed since the SSR 3a was turned on, the control means 7 turns off the turned-on SSR 3a, and subsequently turns on any one of the other SSRs 3b, ..., 3f. Here, for example, when the SSR 3b is turned on, the fluorescent lamp 4b is turned on.

By alternately repeating the above control for each SSR 3a, 3b, ..., 3f, the fluorescent lamps 4a, 4b ,.

According to the fluorescent lamp device configured as described above, since the fluorescent lamp is used as the light source, it is possible to obtain a brighter illumination than that using the conventional neon tube or the incandescent lamp. , The effect of attracting people's attention is great.

Further, since the contactless semiconductor switch (SSR) is used as the switch means, there is no fear of contact welding or contact failure due to frequent blinking, and the reliability is high.

Further, since the first high resistance and the second high resistance are connected in parallel to the semiconductor switch and the fluorescent lamp, respectively, the terminal voltage of the AC power supply depends on the ratio of the two high resistances. Therefore, the terminal voltage of the semiconductor switch can be lowered even when a high-voltage power supply is used to obtain brighter lighting, and as a result, general inexpensive semiconductor switches are used. It is possible to configure the device at low cost.

For example, in the above embodiment, an AC power supply of 300 V is used, a first high resistance of 10 KΩ and a second high resistance of 20 KΩ are used. As a result, the terminal voltage of the semiconductor switch becomes 100 V, and therefore, for example, it becomes possible to use a commercially available inexpensive semiconductor switch having a withstand voltage of 200 V.

If the resistance values of the first and second high resistances are low, it is meaningless to provide the semiconductor switch, or the lighting of the fluorescent lamp is disturbed. Therefore, these problems occur. It is necessary to have a high resistance value that does not exist.

In the above embodiment, a plurality of fluorescent lamps are alternately blinked, but the fluorescent lamp device according to the present invention includes one that blinks one fluorescent lamp. Further, the above ballast may have at least a current limiting function.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of an embodiment of a fluorescent lamp device according to the present invention.

[Explanation of symbols]

 1 AC power supply 2 Ballasts 3a, 3b, ..., 3f Semiconductor switches 4a, 4b, ..., 4f Fluorescent lamps 5a, 5b, ..., 5f First high resistance 6a, 6b, ..., 6f Second high resistance 7 Control means

Claims (2)

[Scope of utility model registration request] 1. An AC power supply, a ballast connected in series with the AC power supply, a semiconductor switch connected in series with the ballast, and a fluorescent lamp connected in series with the semiconductor switch. A first connected in parallel with the semiconductor switch
The high resistance, the second high resistance connected in parallel with the fluorescent lamp, and the control means for turning on / off the semiconductor switch. 2. A fluorescent lamp device for alternately blinking a plurality of fluorescent lamps, wherein an AC power source and a ballast connected in series with the AC power source are arranged in parallel with each other, and each of the stabilizers is provided. A plurality of semiconductor switches connected in series with the lamp, a fluorescent lamp connected in series with each of the semiconductor switches, a first high resistance connected in parallel with each of the semiconductor switches, and A fluorescent lamp device comprising: a second high resistance connected in parallel with the fluorescent lamp; and a control means for alternately turning on and off each of the semiconductor switches.