JPH01186703A - Lighting fixture for fluorescent lamp - Google Patents

Abstract

PURPOSE:To obviate service work for changing an all-night illuminant and enable the application of a small-sized inverter printed circuit board by adding a light emitting diode lighting independent of a fluorescent lamp to an inverter printed circuit board to be housed in a lighting fixture proper, and using the light emitting diode as an all-night illuminant. CONSTITUTION:When two fluorescent lamps 15 and 15' are out and only a light emitting diode 20 is on, light from the light emitting diode 20 is emitted toward under a reflecting shade 13b via a cap 22, thereby lighting dimly a lighting fixture and the neighborhood thereof. Also, when a cap 22 for housing the light emitting diode 20 has such color as milk white to diffuse light, light from the light emitting diode 20 turned on with high brightness is diffused via the cap 22 and irradiated outside as mild and un-glaring light, thereby lighting around gently. The light emitting diode 20 used as an all-night illuminant as aforementioned has semipermanent life and, therefore, eliminates service work for a change. Also, an inverter printed circuit board can be miniaturized.

Description

[Detailed Description of the Invention] Industry-leading and public! The present invention relates to a high-frequency inverter lighting type fluorescent lamp lighting fixture equipped with a night-time light source.

Hanging-type ring-shaped fluorescent lamp lighting fixtures, which have traditionally been used as indoor lighting fixtures in ordinary homes, are equipped with two or three ring-shaped fluorescent lamps and an incandescent night bulb (safety bulb). This is common. The fluorescent lamp lighting method of this lighting equipment has replaced the commercial frequency lighting method, and recently the commercial frequency lighting method has been replaced by a commercial frequency lighting method.
A high-frequency inverter lighting method, which converts to a high frequency of KHz and lights a fluorescent lamp at high frequency, has a tendency to be widely used because it has excellent overall efficiency and saves power.

An example of such a lighting fixture for two hanging ring-shaped fluorescent lamps using a high-frequency inverter lighting method is shown in Figure 4. In the figure, (1) is a circular fixture body, and (2) is a fixture body. (1
), (3) (
3') are two annular fluorescent lamps held below the appliance body (1) by a plurality of lamp holders (4).
5) is a shade placed on the instrument body (1).

The appliance body (1) is made by overlapping an inverted dish-shaped appliance body (1a) and a dish-shaped reflective shade (1b), and the appliance body (1a)
A cord case (6) is fixed to the center of the upper surface of the cord case (6), and a power cord (7) is led out above the cord case (6). The inverter printed circuit board (2) is fixed to the lower surface of the appliance body (1a), and the lamp blinking switch (8), the bulb socket (9), and the fluorescent lamp (3) are attached to the lower surface.
) A lighting circuit component (10) that lights up the high-frequency inverter (3') is fixedly arranged, a pull string (11) for operating the lamp blinking is suspended from the switch (8), and a messenger ball ( 12) is installed. Drawstring (11
) is suspended through the reflective shade (lb), and the emissary ball (
12) is attached so as to protrude downward by a reflective shade (1b). Two fluorescent lamps (3) in this lighting fixture
(3°) and the flashing pattern of the emissary ball (I2) is to turn on two fluorescent lamps in parallel at the same time, then turn on only one fluorescent lamp, then turn on only the emissary ball (12),
Then, you can use a flashing pattern that turns off all the lamps, or connect two fluorescent lamps (3) (3") in series to the inverter lighting circuit, turn on the two fluorescent lamps in series at the same time, and then turn on the two fluorescent lamps in series. A common flashing pattern is to turn off the two fluorescent lamps (3) at the same time, turn on only the emissary bulb (12), and then turn off all lamps. The inverter lighting circuit that lights up the lamp is simple and has a small number of circuit parts (and is highly efficient, so it is often used).

(°1) By the way, the above-mentioned lighting equipment is smaller, lighter, and more efficient than commercial frequency lighting systems that use ballasts, so it is used in general households, but fluorescent lamps (3)
The lifespan of the emissary ball (12) used with (3') is approximately 3
000 hours, the exchange period for the emissary ball (12) was short, and maintenance was troublesome. Also, since the socket (9) of the emissary ball (12) is attached to the inverter printed circuit board (2), the socket (9) is attached to the inverter printed circuit board (2).
9) requires space, making it difficult to downsize the inverter printed circuit board (2). Furthermore, the emissary ball (1
2) is a fluorescent lamp (3) (3゛) of about 5 watts that lights up at a brightness that does not disturb people's sleep when it is turned off, but once the human eye becomes accustomed to the dark room, it becomes difficult for people to sleep. had the inconvenience of feeling the light from the emissary ball (12) dazzling.

In addition, it is virtually impossible to keep such an emissary ball (12) on all the time because it wastes a lot of power, so the drawstring (11)
), the fluorescent lamp (3) (3°) is turned off and then turned on. Therefore, for example, in a high-frequency inverter series lighting system in which two fluorescent lamps (3) (3') are lit simultaneously in series,
If one of the two fluorescent lamps (3) (3°) that is lit goes out due to its end of life, the remaining one will also go out and the room will suddenly become pitch black, which may cause inconvenience to people. Ta.

Dish 1ζ ・′ 1 The technical means for solving the above problems of the present invention is to install a light emitting device that is lit independently of the fluorescent lamp on an inverter printed circuit board that is housed in the main body of a high-frequency inverter lighting type fluorescent lamp lighting fixture. A diode was attached and this light emitting diode was used as an emissary light source.

- The lifespan of a light emitting diode is semi-permanent, and by using it as an emissary light source, there is no need to replace the emissary light source. In addition, the light emitting diode is small and can be attached directly to the inverter printed circuit board by half-width, making it possible to reduce the size and cost of the inverter printed circuit board. Furthermore, the light-emitting diode does not cause glare even when turned on.
Furthermore, since the power consumption is low, there is no problem in terms of power consumption even if the light is turned on all the time.

An embodiment of the present invention applied to, for example, a lighting fixture for two hanging type annular fluorescent lamps is shown in No. trXJ, and two sides of the lamp lighting circuit are shown in FIGS. 2 and 3, and the following Let me explain this.

1st FI! In the lighting fixture J, (13) is a circular fixture body, (14) is an inverter printed circuit board housed in the fixture body (13), and (15) (15') is a lamp in the fixture body (13). Holder (16) holds two annular fluorescent lamps through the bend, (17) is a shade placed on the instrument body (13), the instrument body (1
3) is an inverted dish-shaped instrument body (13a) and a dish-shaped reflective shade (13b).
'), and the inverter printed circuit board (14) is directly attached to the lower surface of the device body (13a). On the bottom of the inverter printed circuit board (14) are a lighting circuit component (18) for lighting two fluorescent lamps (15) (15°) using a high-frequency inverter, and a switch (19) for operating the lamp blinking.
), and a light emitting diode (20) characterized by the present invention
is fixedly placed. In addition, the switch (19) has a pull cord (19
').

The light emitting diode (20) is used as a night light source, and two lead wires (21) (21) are led out, and the tips of the lead wires (21) (21) are connected to the impark printed circuit board (14). ), the light emitting diode (20) is supported by the inverter printed circuit board (14) by soldering to the printed wiring body. This light emitting diode (20) is, for example, a reflective shade (13) of the appliance main body (13).
b) Hemispherical translucent camp (22
), and the light from the lit light emitting diode (20) is transmitted through the cap (22) and radiated to the outside.

The blinking patterns of the two fluorescent lamps (15) (15 degrees) and the light emitting diode (20) are various, and the specific two sides will be explained with reference to the lighting circuit diagrams in FIGS. 2 and 3.

Figure 2 shows an inverter lighting circuit (23) connected in parallel with two fluorescent lamps (15) (15'), and a switch (1
9) shows a lamp lighting circuit using a 4-contact changeover switch. In addition, (24) in Fig. 2 is a commercial AC power supply, R is a resistor, D is a rectifier diode, and Ml in the switch (19).
is a contact for turning off all lamps, N2 is a contact for lighting two fluorescent lamps, N3 is a contact for lighting one fluorescent lamp, and N4 is a contact for lighting a light emitting diode.

In Figure 2, when the switch (19) is switched to the N1 contact, the two fluorescent lamps (15) (15') and the light emitting diode (20) remain off. N by operating the drawstring (19°)
When switching to 2 contacts, the commercial AC power supply (24) is applied to the inverter lighting circuit (23) and the two fluorescent lamps (1
5) Only the 0th order switch (15°) lights up at the same time (
19) to N8 contact, one fluorescent lamp (1
5) goes out, and only the remaining fluorescent lamp (15") lights up.Furthermore, when the switch (19) is switched to the N4 contact, the one fluorescent lamp (15") that was lit goes out. , instead only the light emitting diode (20) lights up. Next, when the switch (19) is switched to the N1 contact again, the light emitting diode (20) is turned off.

When the above two fluorescent lamps (15) (15') are turned off and only the light emitting diode (20) is lit, the light from the light emitting diode (20) passes through the cap (22) and passes through the reflective shade ( 13b) A light emitting diode (20) used as a night light source that emits light downward to dimly illuminate the lighting equipment and its surroundings has a rated current of several tens of amperes, which is sufficient. be. In addition, if the camp (22) that houses the light emitting diode (20) is made of something that diffuses milky white light, the light from the light emitting diode (20) that lights up at high brightness will be diffused by the cap (22) and will be transmitted to the outside. It emits soft, non-dazzling light that softly illuminates the surrounding area.

Figure 3 is a lighting circuit diagram that connects two fluorescent lamps (15) (15') in series to the inverter lighting circuit (23') and lights them up in series at the same time.In this case, the switch (19)
For example, if the switch (19) is changed to the N1 contact shown in the drawing, all lamps will be turned off, and N! and N2 contact, two fluorescent lamps (15) (15') and a light emitting diode (20
) lights up, and when you switch to N3 contact, the light emitting diode (2
0) only lights up.

In such a high frequency inverter series lighting system, if one of the two fluorescent lamps (15) (15°) that is lit goes out due to its lifespan, the remaining one will also go out, but the light emitting diode (2o) Since only the lamp remains lit, there is no need to worry about the room suddenly becoming pitch black, improving the reliability of the lighting equipment.

Furthermore, even if the light emitting diode (20) is turned on when the two fluorescent lamps (15) (15°) are turned on, the power consumption is minimal since the light emitting diode (20) consumes low power. (Also, since the lifespan of the light emitting diode (20) is semi-permanent, there is no problem with the lifespan even if it is turned on other than as a night light source.

Note that the present invention is not limited to a lighting fixture for two hanging annular fluorescent lamps.

As described above, according to the present invention, the light emitting diode used as a night light source has a semi-permanent lifespan, so there is no need to replace it, and the lighting equipment can be easily maintained. Furthermore, the light emitting diode is small and can be mounted directly in a small space on the inverter printed circuit board without using a socket or the like, so that the inverter printed circuit board can be made smaller. Furthermore, since the light emitting diode consumes low power, there is no problem in terms of power consumption even if the light emitting diode is turned on all the time, and therefore, a wide variety of blinking patterns can be selected in conjunction with the fluorescent lamp.

[Brief explanation of the drawing]

FIG. 1 is a side view including a partial cross section showing one embodiment of the present invention, and FIGS. 2 and 3 are two types of lamp lighting circuit diagrams of the lighting fixture of FIG. 1. FIG. 4 is a side view including a partial cross section of a conventional lighting fixture. (13)--Instrument main body, (14)--Inverter printed circuit board, (15)
< 15°) - Fluorescent lamp, (18) - Lighting circuit components, (20) - Light emitting diode. Patent Applicant: NEC Home Electronics Co., Ltd. Figure 1 (red, page 1) (A phantom wire 2 2υ (lighting diode) Figure 3 (dot, large) Figure 4

Claims (1)

[Claims] In a box-shaped device body containing an inverter printed circuit board incorporating lighting circuit components for lighting a fluorescent lamp with a high-frequency inverter, the inverter printed board has a light emitting device for a night light source that lights independently of the fluorescent lamp. A fluorescent lamp lighting fixture characterized by being equipped with a diode.