JPS5949150A - Fluorescent lamp - Google Patents

Abstract

PURPOSE:To obtain a fluorescent lamp capable of completely preventing crosstalk discharge while being suitable for mass production by inserting a glass body holding an electrode lead into the recessed part formed on the opening end of an envelope so as to plug said recessed part. CONSTITUTION:Electrode parts are fixed to a cover 12 while being provided on a luminous envelope 1. That is to say, that any electrode part is fixed with glass frit 5 while the lower end part of a glass body 13 is inserted into the recessed part 14 provided on the cover 12. Further, the upper end of the glass body 13 is inserted into the recessed part 15 provided on the opening end of the envelope inner body 3 so as to plug said recessed part. Abnormal discharge generated between two electrodes 7 through a gap between the opening end part of the envelope outer body 2 and the opening end part of the envelope inner body 3 is prevented by said glass body 13.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to compact fluorescent lamps.

Conventional configuration and problems Incandescent light bulbs exhibit a warm, desirable light color and excellent color rendering, are easy to use, and are compact and high-intensity lamps, making it easy to control light distribution when combined with lighting equipment. It has been widely used for general lighting in homes, stores, etc. due to its characteristics such as: However, in the era of energy saving, the low efficiency, which can be said to be the only drawback of incandescent light bulbs, has become a problem9, and recently there has been a demand for the development of highly efficient compact discharge lamps that can replace incandescent light bulbs.

Anticipating such a situation, the inventors have already filed a patent application in 1972.
-30659 (Refer to Sho Kosho No. 57-37105)
, Patent Application No. 55-645 j 0 (Japanese Unexamined Patent Publication No. 56-160
(see Publication No. 753), we proposed a new compact fluorescent lamp to replace incandescent light bulbs.

As shown in Fig. 1(a) and fb), this fluorescent lamp is constructed of a container outer body 2 made of a translucent glass material and having a curved spherical or cylindrical outer shape. , same profit $
The light-emitting container 1 is constructed by inserting and overlapping the container inner body 3 consisting of the light-emitting container 1. The openings 4 of the container outer body 2 and the container inner body 3 are joined to each other by, for example, a glass frit 5 or the like. Further, in the inner body 3 of the container, a groove 6 for forming a discharge path is provided in a meandering manner so as to form one continuous discharge path, and two electrodes 7 are provided at both ends of the groove. It is held by a lead wire 8, and an external lead wire 9 is further connected to the internal lead wire 8. A phosphor 10 is coated on at least the groove 6 on the inner surface of the container outer body 2 and the outer surface of the container inner body 3. Further, the inside of the groove 6 is evacuated through an exhaust pipe 11, and excess mercury and rare gas are sealed therein.

As the next step, the inventors began manufacturing the above-mentioned compact fluorescent lamp. However, during manufacturing, (1) the container inner body 3 where the groove 6 is formed breaks down due to atmospheric pressure; (1) it is relatively difficult to seal the electrode parts, and the position of the electrode 7 may shift. It has become clear that there is a problem in that the rate of occurrence of leaks and cracks at the sealed portion of the internal lead wire 8 is high. Among the above-mentioned problems, the former, damage to the container inner body 3, is a problem unique to this type of fluorescent lamp, and the inventors have searched for a solution to this problem.

In the end, it was determined that such a problem could not be completely solved by means of increasing the mechanical strength of the inner body 3 of the container, etc.
A new basic structure was proposed in which the opening of the container was covered with a stem, etc., so that atmospheric pressure was not applied to the container inner body 3.
No. 4511 (see Japanese Unexamined Patent Publication No. 6e-160764).

The inventors have been considering the mass production of fluorescent lamps based on this new structure. However, it has been found that a new problem associated with the new structure is that so-called cross-discharge is relatively likely to occur between the two electric machines.

OBJECTS OF THE INVENTION An object of the present invention is to provide a fluorescent lamp that can completely prevent the above-mentioned crosstalk discharge and is suitable for mass production.

Structure of the Invention The fluorescent lamp of the present invention includes a container outer body made of a glass material having a curved surface and a container inner body which are superimposed on each other to form a discharge path in at least the container inner body. A serpentine groove is provided, electrodes are provided at both ends of the groove, and a phosphor is coated on all or part of the inner surface of the outer container body or the outer surface of the inner container body, and the A lid is sealed near the opening of the outer body of the container, an electrode component including the electrode is attached to the lid, and rare gas and mercury are contained in the interior surrounded by the outer body of the container and the lid. The electrode component includes the electrode, a lead body that holds the electrode, and a glass body that integrates the lead body, and the electrode component has an open end of the inner body of the container or the outer body of the container. A recess is formed in the recess, and the glass body is inserted into the recess so as to close the recess.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 2 shows the compact fluorescent lamp of this embodiment. Referring to the figure, 1 is a luminous envelope, 2 and 3 are an outer body and an inner body made of glass, respectively, and the inner body 3 is provided with a meandering groove 6. ing. Two electrodes 7 are provided at both ends of the groove 6. Container outer body 2
The outer surface of the groove 6 of the container inner body 3 is coated with a phosphor. Opening of container outer body 2] Metal material Ni42%-0r6%-Fe52 is applied along the periphery of the part 40.
% iron alloy is sealed with a glass frit 5. Electrode components including the electrode 7, which will be described later, and the exhaust pipe 11 are sealed to the lid 12 using the same glass frit 6. surrounded by the container outer body 2 and the lid 12,
After the entire area including the groove 6 is evacuated through the exhaust pipe 11, 2.5 to 3.5 Torr of argon and excess mercury are sealed. Since the internal region of the inner body 3 is in communication and atmospheric pressure is not applied to the inner body 3 of the container, its damage can be completely prevented. FIG. 3 shows the structure of the electrode part, which realizes a compact fluorescent lamp suitable for mass production by an extremely simple structure in which the electrode part is joined to the lid 12. This electrode part is electrode 7. The internal lead wire 8 and the external lead wire 9 are electrically and mechanically connected as before, but the internal lead wire 8 and the external lead wire 9 are connected to a tall rectangular parallelepiped-shaped glass body 13.
It is different from the conventional method in that it is integrated into one.

And, such electrode parts are shown in Fig. 4 (al, (b)).
As shown in FIG. 2, it is fixed to the lid 12 and provided to the light emitting container 1. That is, in the electrode component, the lower end of the glass body 13 is inserted into the recess 14 provided in the lid 12 and fixed by the glass frit 5. Further, the upper end of the glass body 13 is inserted into a recess 15 provided at the open end of the container inner body 3 so as to close the recess. This glass body 1
3, the abnormal discharge that occurs between the two electrodes 7 through the gap between the open end of the container outer body 2 and the open end of the container inner body 3, so-called crosstalk discharge, is completely eliminated. is prevented.

On the other hand, for example, in a mass-produced fluorescent lamp in which an integrated electrode component was sealed using a piece of glass 16 as shown in FIG. 6, crosstalk discharge occurred at an incidence of about 5%.

Therefore, the configuration using the rectangular parallelepiped glass body 13 according to the present invention shown in FIG. 3 has an extremely simple structure, and
Moreover, the above-mentioned crossstoke discharge can be completely prevented, and it can be said that it is excellent in mass productivity.

It should be noted that the glass body 13 according to the present invention does not need to be applied to both electrode parts, and is sufficiently effective if used for either one of the electrodes. Using a conventional glass piece 16 as shown,
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As described in detail, the present invention provides a fluorescent lamp that solves the quality problems of conventional compact fluorescent lamps, has excellent mass productivity, and is useful as an energy-saving light source to replace light bulbs. It is something that can be provided.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are a partially cutaway longitudinal cross-sectional view of a conventional compact fluorescent lamp, and a cross-sectional view taken along the line X--X of the same.
FIG. 2 is a partially cutaway vertical sectional view of a compact fluorescent lamp according to an embodiment of the present invention, FIG. 3 is a perspective view of an electrode component according to the present invention, and FIGS. 4(a) and (b) are Similarly, a cross-sectional view of a main part of a fluorescent lamp and a cross-sectional view taken along the line X-X, and FIG. 5 are perspective views of conventional electrode parts. ... Container outer body, 3 ... Container inner body, 6 ... Glass frit, 6 ... Groove, 7 ... Electrode, 8・
...Internal lead wire, 9...External lead wire, 10...Fluorescent body, 11...Lid, 13
...Glass body. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure (α) /l Figure 2 Figure 4 (α di (b) Figure 5

Claims (1)

[Claims] A container outer body made of a curved glass material and a container inner body are overlapped, and at least a meandering groove for forming a discharge path is provided in the container inner body, and both ends of the groove are provided. an electrode is provided on the outer surface of the container, and a phosphor is coated on the entire or part of the inner surface of the outer container body or the outer surface of the inner surface of the container, and a lid is provided near the opening of the outer container body. an electrode component including the electrode is attached to the lid, a rare gas and mercury are sealed in an interior surrounded by the outer body of the container and the lid, and the electrode component includes the electrode. It has a lead body that holds the electrode and a glass body that integrates the lead body, and a recess is formed in the open end of the inner body of the container and the outer body of the container, and a recess is formed in the four parts. A fluorescent lamp characterized in that the glass body is inserted so as to close the recess.