JP3159444U - Fluorescent lamp fixtures - Google Patents

Abstract

The present invention provides a two-lamp in-line type fluorescent lamp apparatus that can switch between two lamp lighting and one lamp by switch operation. Two energization circuits are connected in series to the output end of the ballast, a fluorescent lamp is connected to both energization circuits, and the energization circuit is energized from the ballast to the energization circuit by operating a power switch. In a two-lamp in-line type fluorescent lamp apparatus in which a lamp is lit, a resistance component 17D is provided on the way, and one fluorescent lamp is connected by connecting both ends of one of the two fluorescent lamps 15 and 16. And an extinguishing switch 17 for connecting between both ends of one fluorescent lamp by closing the extinguishing circuit. [Selection] Figure 1

Description

  The present invention relates to a fluorescent lamp fixture, and more particularly, to a fixture that can switch between two-lamp lighting and single-lamp lighting by operating a switch in a two-lamp series fluorescent lamp fixture.

  There are two types of fluorescent lamps used in offices, shops, factories, etc., but there are parallel and series types, but lighting equipment is popular in terms of performance and price. Many parallel signs that can easily control the blinking of fluorescent lamps are used for the signs (Patent Documents 1 and 2).

  Recently, energy conservation has been screamed, and lighting fixtures are also turned off to save power when bright lighting with two lights is not needed, such as during the daytime, but two series-type lights are used. If one lamp is removed from a fluorescent light fixture, the other lamp will be extinguished.

  Therefore, in a two-lamp in-line type fluorescent lamp fixture, instead of a normal fluorescent lamp, a dummy tube connected with a current-carrying means having a small DC resistance component is set between two opposing contact pins, and the remaining one lamp is replaced. A method of lighting is proposed (Patent Literature 3, Patent Literature 4, Patent Literature 5). Since these two-lamp in-line type fluorescent lamp fixtures use a dummy tube, the dummy tube must be replaced with a normal fluorescent lamp when bright illumination is required, such as at night, which is complicated. .

  Further, there has been proposed a fluorescent lamp apparatus that counts the number of ON / OFF operations of the power switch provided on the wall surface, and allows and stops the operation of the bimetallic starter of the fluorescent lamp according to the number of operations (Patent Document). 6).

Japanese Utility Model Publication No. 06-58596 Japanese Utility Model Publication No. 06-58599 JP-A-53-45071 Japanese Utility Model Publication No. 56-130296 JP 2000-208238 A JP 2003-142279 A

  The applicants of the present application are a two-lamp parallel type and a two-lamp parallel type in which one lamp is turned off by the operation of a flip-flop circuit when an ON operation is performed within a predetermined time after the power switch is turned ON / OFF. Has developed and filed an application (PCT / JP2009 / 62194). With this fluorescent light fixture, only one lamp can be turned on by operating the power switch when necessary, and one lamp can be turned off during the daytime to save power, and two lights can be turned on at night. And bright lighting can be ensured.

  However, the fluorescent lamp fixture requires a flip-flop circuit, which increases the number of parts, complicates the circuit configuration, and increases the cost.

  This invention makes it a subject to provide the fluorescent lamp fixture which enabled it to switch 2 light lighting and 1 light lighting by switch operation in view of this point.

  Therefore, in the fluorescent lamp fixture according to the present invention, two energizing circuits are connected in series to the output end of the ballast, the fluorescent lamp is connected to both energizing circuits, and the ballast is switched from the ballast to the energizing circuit by operating the power switch. In a two-lamp in-line type fluorescent lamp fixture that is energized to turn on two fluorescent lamps, a resistance component is provided in the middle, and by connecting between both ends of one of the two fluorescent lamps, An extinguishing circuit that extinguishes the one fluorescent lamp, and a extinguishing switch that conducts between both ends of the one fluorescent lamp by closing the extinguishing circuit.

  One of the features of the present invention is that the extinguishing circuit is closed by the extinguishing switch, the both ends of one fluorescent lamp of the two-lamp type fluorescent lamp fixture are connected by the extinguishing circuit, and the one fluorescent lamp is extinguished. It is in the point.

  As a result, one of the fluorescent lamps can be turned on and the other of the fluorescent lamps can be turned off by the configuration of the turn-off switch and the turn-off circuit, no expensive parts such as a flip-flop circuit are required, and the number of parts is small. Since the configuration is simplified, the cost is not incurred, and it is most suitable for a fluorescent lamp apparatus that requires low cost, and can be expected to be put to practical use.

  By the way, since the fluorescent lamp apparatus has different electrical characteristics depending on the manufacturer, it is preferable to select a resistance component having a size corresponding to the fluorescent lamp apparatus having different characteristics.

  According to the experiment of the present inventor, in the case of fluorescent lamps with different characteristics, even if one lamp can be lit, the power consumption and energization amount of the power supply greatly increase, and the temperature of the fluorescent lamp and ballast rises significantly. However, although there was a concern about deterioration of durability, in the present invention, by selecting a resistance component of an appropriate size, the temperature rise of the fluorescent lamp or ballast during lighting can be suppressed, and the power consumption of the power supply It was confirmed that an increase in current and current can be suppressed.

  Although it is conceivable to use a resistor as the resistance component, it is preferable to use an inductor because the resistor generates heat when energized.

  Further, the fluorescent lamp to be turned off may be determined in advance, but may be selected as necessary. Therefore, each of the two individual circuits is connected to a contact pin on one side of the corresponding fluorescent lamp, and a common circuit is connected between the contact pins on one side of the two fluorescent lamps. When one of the two individual circuits is switched and connected to form a turn-off circuit, the fluorescent lamp to be turned off can be freely selected.

  One of the features of the present invention is that the fluorescent lamp can be turned off by operating a turn-off switch. In view of this, it is preferable that a light-off switch or a change-over switch be provided in the power switch so that the user can easily perform the switch operation.

  If only one fluorescent lamp is lit to save power, the illumination becomes dark. Therefore, it is preferable to provide a reflector behind the fluorescent lamp to increase the illuminance. For example, a reflecting plate developed by the present inventors can be used (Japanese Patent Laid-Open No. 2000-106015).

It is a schematic block diagram which shows preferable embodiment of the fluorescent lamp fixture which concerns on this invention.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. FIG. 1 shows a preferred embodiment of a fluorescent lamp apparatus according to the present invention. In the figure, a commercial power supply 10 and a power switch 11 are connected to the input end of the inverter type ballast 12, and a high frequency voltage is output to the output end of the inverter type ballast 12.

  Two energization circuits 13 and 14 are connected in series to the output end of the inverter ballast 12, and fluorescent lamps 15 and 16 are connected between contact pins facing both energization circuits 13 and 14.

  In addition, one end of individual circuits 17B and 17C is connected to energization circuits (contact pins) 13 and 14 on one side of the two fluorescent lamps 15 and 16, and the other side of the two fluorescent lamps 15 and 16 is connected to the other side. One end of the common circuit 17A is connected between the contact pins, the other end of the common circuit 17A is connected to the other end of the individual circuits 17B and 17C, and a changeover switch 19 is connected to the other end of the common circuit 17A, individual circuit 17B, The turn-off circuit 17 is constituted by 17C and the changeover switch 19.

  An extinguishing switch 18 is connected in the middle of the extinguishing circuit 17, and an inductor 17D, a fuse 17E, and a thermal fuse 17F are connected to the extinguishing circuit 17.

  The power switch 11 is attached to the wall surface of the room, and the extinguishing switch 18 and the changeover switch 19 are provided together with the power switch 11.

  When the power switch 11 is turned on, a high-frequency voltage is output to the output terminal of the ballast 12 and is applied to the fluorescent lamps 15 and 16 by the energizing circuits 13 and 14 so that the two fluorescent lamps 15 and 16 are lit.

  Now, when the extinguishing switch 18 is turned on, the changeover switch 19 is connected to the contact on the individual circuit 17C side, so the path of the common circuit 17A and the individual circuit 17C is closed, and the contact pins on both ends of the fluorescent lamp 16 are connected. The fluorescent lamp 16 is turned off, and only the remaining fluorescent lamp 15 is turned on.

  When the changeover switch 19 is switched to the contact on the individual circuit 17B side, the path of the common circuit 17A and the individual circuit 17B is closed, the contact pins between both ends of the fluorescent lamp 15 are conducted, the fluorescent lamp 15 is turned off, and the other Only the fluorescent lamp 16 is lit.

DESCRIPTION OF SYMBOLS 10 Commercial power supply 11 Power switch 12 Inverter ballast 13, 14B Energizing circuit 15, 16 Fluorescent lamp 17 Light-off circuit 17A Common circuit 17B, 17C Individual circuit 18 Light-off switch 19 Changeover switch

Claims (4)

Two energization circuits are connected in series to the output end of the ballast, fluorescent lamps are connected to both energization circuits, and the two fluorescent lamps are lit by energizing the energization circuit from the ballast by operating the power switch. In the two-lamp in-line type fluorescent lamp fixture,
On the way, a resistance component (17D) is provided, and an extinguishing circuit for turning off the one fluorescent lamp (15, 16) by conducting between both ends of the one of the two fluorescent lamps (15, 16) ( 17)
An extinguishing switch (18) for electrically connecting both ends of the one fluorescent lamp (15, 16) by closing the extinguishing circuit (17);
A fluorescent lamp apparatus comprising:   The extinguishing circuit (17) includes two individual circuits (17B, 17C) each connected to a contact pin on one side of the two fluorescent lamps (15, 16), and the two fluorescent lamps ( 15 and 16) switching to connect the common circuit (17A) connected between the contact pins on one side and the common circuit (17A) and one of the two individual circuits (17B and 17C). 2. A fluorescent lamp apparatus according to claim 1, comprising a switch (19).   The fluorescent lamp apparatus according to claim 1, wherein the extinguishing switch (18) is provided alongside the power switch (11). 3. The fluorescent lamp apparatus according to claim 2, wherein the changeover switch (19) is provided together with the power switch (11).

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