JPH0119639B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a starting device for lighting a fluorescent lamp, which applies an impact force to a piezoelectric element to generate a high voltage, and uses the high voltage to light a fluorescent lamp.

Embodiments of the present invention will be described below with reference to the drawings.
First, in the figure, 1 houses a high voltage generation unit (not shown) that generates high voltage by applying an impact force to a piezoelectric element, and the ON/OFF mechanism of the preheater 14a of the fluorescent lamp 14 and the main circuit will be described later. It is a built-in insulated storage body. Reference numeral 2 denotes a cam plate which is rotatably supported by a shaft support pin 1a formed in the housing body 1 and housed in the housing body 1. The cam plate 2 is a cam plate which is rotatably supported by a shaft support pin 1a formed in the housing body 1, and which is housed in the housing body 1. It has an impactor pin engagement side 2a that engages with the impactor pin 3 that protrudes, and also has an engagement side 2a for releasing the engagement between the impactor pin 3 and the engagement step portion 1b formed on the storage body 1. A continuous cam part 2 for turning on and off the switch terminals 4 and 5 of the preheater 14a of the fluorescent lamp 14.
c, 2d. Above switch terminals 4 and 5
are provided in the housing 1 in a normally OFF state, and their respective ends 4' and 5' are electrically connected to the preheater 14a of the fluorescent lamp 14. Reference numeral 6 denotes a locking spring which is interposed between the cam plate 2 and the storage body 1, is supported by a pivot pin 1a, and is used to always bias the cam plate 2 to the pre-operation state shown in FIG. Reference numeral 7 denotes a lighting ON button which is attached to the storage body 1 so that a part thereof protrudes to the outside, and its tip is in contact with the cam plate 2. Reference numeral 8 designates an OFF button for turning off the light, which is also attached to the storage body 1 so that a part thereof protrudes to the outside, and its inwardly protruding portion 8a
This OFF button 8 is always the first button between the
A return spring 9 is provided for biasing it to the pre-actuation state shown in the figure. Reference numerals 10 and 11 are switch terminals of the main circuit of the fluorescent lamp 14 provided in the housing 1 in the normally ON state;
11 is turned off by pressing the OFF button 8, and its ends 10', 11'
is electrically connected to the main circuit of the fluorescent lamp. Reference numeral 12 denotes a high voltage terminal for guiding the high voltage generated by the high voltage generating unit to the fluorescent lamp 14, and its end 12' is located on the outer circumferential side of the fluorescent lamp 14. In the figure, reference numerals 1c and 1c' are mounting surfaces for mounting the storage body 1 to a fixture such as a fluorescent lamp stand. Further, 13 is a front cover attached to the front opening of the storage body 1 by means such as welding.

Next, its operation will be explained. First, the first
When the ON button 7 for the lighting lamp is pressed in the state shown in the figure, the cam plate 2 starts rotating about the pivot pin 1a. Then, as shown in FIG.
The preheater 14a of the fluorescent lamp 14 rides up against the elasticity and contacts the other switch terminal 5, causing the preheater 14a of the fluorescent lamp 14 to
It will be turned on and the heater will start preheating. At the same time, the impactor pin 3 of the high voltage generating unit is engaged with the engagement step 1b of the storage body 1 by the engagement side 2a of the cam plate 2 against the elasticity of an impact spring (not shown), and The voltage generating unit stores the impact energy. Here, when the pressing of the lighting ON button 7 is released, the cam plate 2 attempts to return to the state before activation due to the biasing force of the stiff spring 6, and the switch terminal 4 of the elastic body falls into the cam portion 2c of the cam plate 2. The switch terminals 4 and 5 are separated and the heater preheating circuit of the fluorescent lamp 14 is turned off. Furthermore, ON button 7 for lighting
When completely returned, the impactor pin 3 is attached to the cam plate 2.
The engagement with the engagement step portion 1b is released by the engagement release side 2b, and the accumulated energy causes the piezoelectric element to be impacted by an impactor, and the generated high voltage is applied to the outer peripheral side of the fluorescent lamp 14. The fluorescent lamp 14 is then turned on. In addition, when the lights are turned off, the OFF
When the button 8 is returned and pressed against the biasing force of the spring 9,
As shown in FIG. 4, the inward protrusion 8a of the OFF button 8
presses the elastic switch terminal 11 against its elasticity to turn off the switch terminals 10 and 11. Therefore, the main circuit is temporarily turned off and the fluorescent lamp 14 is turned off.
Next, when the pressure on the OFF button 8 is released, the OFF button 8 is returned to the state before activation by the return spring 9.
The switch terminal 11 adheres to the switch terminal 10 due to its elasticity and becomes ON state, preparing for the next lighting state.

According to the present invention as described above, the preheating heater switch, the main circuit switch, and the high voltage generating unit are built into the housing and are integrated, which makes it extremely easy to install fixtures such as fluorescent lamp stands. Can be installed easily. In addition, since the ON/OFF of the preheating heater switch and the impact operation of the high voltage generation unit are activated by the same cam plate, the timing of heater preheating ON → heater preheating OFF → high voltage generation can be reliably and easily obtained. This will ensure that the fluorescent lamps are turned on. Furthermore, by using the cam plate, the configuration of the high voltage generation unit can be positioned parallel to the mounting surface of the storage body, which allows the cam plate and the high voltage generation unit to be arranged in parallel and stored in the storage body. Because of this structure, the installation height (dimension A in Figure 1) is reduced, resulting in a compact and simple shape.For example, the bottom thickness of a fluorescent lamp stand can be made thinner, making it easier to design. The effect and practical value are extremely great.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the starting device for lighting a fluorescent lamp according to the present invention, FIG. 2 is a schematic configuration diagram of the same device as seen from the top including an applied circuit, and FIG. 3 is the same device. FIG. 4 is a front view of the main part explaining the ON state of the preheating heater switch part, and FIG. 4 is an enlarged front view of the main part explaining the OFF state of the main circuit switch part. DESCRIPTION OF SYMBOLS 1... Storage body, 1a... Pivotal support pin, 1b... Engagement step part, 2... Cam plate, 2a... Impactor pin engagement side, 2b
...Disengagement side, 2c, 2d...Cam part, 3...Impactor pin, 4, 5...Preheater switch terminal, 7,
8...Operation means (ON button for lighting, OFF button for turning off),
10, 11...Switch terminals of the main circuit.

Claims (1)

[Claims] 1. A storage body containing a high voltage generation unit that generates high voltage by applying an impact force to a piezoelectric element is equipped with a normally OFF switch terminal connected to the preheater of the fluorescent lamp and a switch terminal connected to the main circuit of the fluorescent lamp. The normally ON switch terminal is stored in the housing, and the high voltage generating unit is operated in the housing, and the switch terminal of the preheating heater is turned ON and OFF.
A cam plate equipped with a means for activating the cam plate is housed in parallel with the high voltage generating unit, and the storage body includes an operating means for activating the cam plate and other means for turning the switch terminal of the main circuit ON and OFF. The cam plate is rotatably supported by a pivot pin formed in the storage body, and the cam plate is provided with a structure for operating the high voltage in a vertical direction to each storage body. an impactor engaging piece that engages with an impactor pin protruding from the impactor that impacts the piezoelectric element of the generating unit; and an engagement release that releases the engagement between the impactor pin and an engagement step formed in the storage body. The cam plate is provided with a continuous cam part that turns the switch terminal of the preheater ON and OFF, and as the cam plate rotates in one direction, the impactor engaging piece acts to reduce the impact. The child pin is moved against the impact spring and engaged with the engagement stepped portion, and at the same time, the switch terminal of the preheater is turned on by the cam portion, and as the cam plate is rotated in the opposite direction, The disengagement side disengages the impactor pin from the engagement step, and at the same time the impactor pin is moved by the impact spring to a position where it can engage with the impactor engagement piece. A starting device for lighting a fluorescent lamp, characterized in that the cam portion turns off a switch terminal of the preheater.