JPS6034761B2 - discharge lamp device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Objects of the Invention) The present invention relates to a starter-type discharge lamp device, and an object of the present invention is to facilitate assembly and removal of a lamp, a lighting device, and a starter.

(Disadvantages of Conventional Example) A conventional example to be compared with the present invention is shown in FIGS. 1 to 8 as a fluorescent lamp discharge lamp device with an Edison cap, which is used in the same way as a general incandescent lamp.

In the figure, 1 is a glow-type star lamp, 2 is a wire-wound ballast, 3 is a fluorescent lamp, and 4 is an Edison base.The circuit is as shown in Figure 3. A ballast 2 is connected in series with the parallel circuit, and the lamp is started and lit by supplying power from the Edison base 4.
The ballast 2 is constructed by winding a coil 2c around a ring-shaped iron core 2a as shown in FIG. A discharge lamp device having such a structure has the disadvantage that positioning of each component, support and electrical connection of each component are complicated, and the time and cost required for assembly are increased.

Furthermore, since the fluorescent lamp 3 and the star lamp 1, which have a shorter lifespan than the ballast 2, cannot be detached, it is not possible to replace only the fluorescent lamp 3 or the star lamp 1, resulting in an extremely uneconomical structure. (Embodiments of the present invention) The present invention has been made in view of the above drawbacks, and the fourth embodiment is as follows.
A description will be given according to the embodiments shown in FIGS. 6 to 6.

In the figure, numeral 5 denotes a cylindrical ballast storage housing, which houses a ring-shaped ballast 2 similar to the conventional one, and has one end connected to the winding of the ballast 2 and the other end to the winding of the ballast 2, which will be described later, in the center of the upper plate part, similar to the conventional example. An Edison base 4 connected to the contact plate 2b is attached.

Reference numeral 6 denotes a conductive threaded cylinder with upper and lower openings, which is disposed inside the ring-shaped iron core 2a of the stabilizer 2.

2b, 2b are contact plates connected to the winding of the ballast 2 and the Edison base 4.

The screw cylinder 6, the housing 5, and the stabilizer 2 constitute a stabilizer block A. B is a fluorescent lamp as a discharge lamp, and includes an outer tube 7 and U consisting of a cylinder 7a and a stem 7b.
a filament 9 housed in the U-shaped inner tube 8;
9, an Edison cap 10 that abuts the upper surface of the stem 7b and is connected to one end of each of the filaments 9, 9, and a contact plate 11 that is connected to the end of each of the filaments 9, 9.
, 11.

1 is a glow starter with an Edison cap 12 similar to the conventional one.

The glow starter 1 is fitted with its Edison cap 12 screwed from the upper end of the threaded tube 6, and the fluorescent lamp B is fitted with its Edison cap 10 screwed from the lower end of the screw tube 6, and each is mechanically attached to the screw tube 6. and electrically connected.

At this time, the center contacts 12a and 10a of the Edison bases 12 and 10 of the glow starter and the fluorescent lamp B come into contact with each other, and the contact plate 1 of the fluorescent lamp B
1 and 11 are brought into contact with the contact plates 2b and 2b of the ballast block A, respectively, to form a complete discharge lamp circuit as shown in FIG. In the above embodiment, the upper and lower opening diameters of the threaded tube 6 were the same, but it goes without saying that different diameters are required for the glow starter 1 and the fluorescent lamp B. .

FIG. 7 shows a different embodiment of the present invention in which contacts 6b, 6b are provided in the middle of the threaded cylinder 6 and are connected to each other via a spring 6a. Center contact 12 of Edison cap 12, 10
It is excellent in that the contact between a and 10a is reliable.

As described above, in the discharge lamp device of the present invention, a ballast consisting of a ring-shaped iron core wrapped around a coil is housed in a housing, and a threaded tube for guiding the upper and lower sekiguchi is installed inside the iron core of the ballast. to form a ballast block, an Edison cap of an Edison cap star is screwed to the upper end of the conductive screw tube, and an Edison cap of a discharge lamp with an Edison cap is screwed to the lower end of the conductive screw tube; The device is characterized by a configuration in which the center contacts of both Edison caps are brought into contact with each other for conduction, so that the fluorescent lamp and the star lamp are mechanically and electrically connected to each other through the threaded tube, making it easy to assemble. It has been possible to provide a discharge lamp device that is effective in that it is easy to repair the discharge lamp, and since the discharge lamp is detachable, the discharge lamp is easy to repair.

[Brief explanation of the drawing]

1 to 3 show a conventional discharge lamp device in comparison with the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a plan view of the ballast, and FIG. 3 is a circuit diagram. Figures 4 to 6 show a discharge lamp device that is an embodiment of the present invention, with Figure 4 being an exploded sectional view, Figure 5 being a top view of fluorescent lamp B, and Figure 6 being a circuit diagram. . FIG. 7 is a sectional view of a threaded cylinder used in a different embodiment of the present invention. A.
... Ballast block, B is a discharge lamp with an Edison cap, 1... Star light with an Edison cap, 2...
...Ballast, 2a...Iron core, 5...Housing, 6...Threaded conductive tube, 10, 12...
...Edison cap, 10a, 12a...center contact. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. In a discharge lamp device that includes a ballast block, a discharge lamp, and a starter and is connected to a power source via an Edison base, the ballast consisting of a coil wound around a ring-shaped iron core is housed in a housing, and the ballast A ballast block is formed by providing a conductive threaded cylinder with upper and lower openings inside the iron core of the device, and the Edison cap of the starter with Edison cap is screwed onto the upper end of the conductive threaded cylinder. A discharge lamp device characterized in that an Edison cap of a discharge lamp with an Edison cap is screwed onto the lower end, and the center contacts of both Edison caps are brought into contact to establish electrical conduction.