JPH0714547A - Bulb type fluorescent lamp - Google Patents

Abstract

PURPOSE:To prevent the breakage of the fine tube of a fluorescent tube due to the expansion or shrinkage of a silicone adhesive during lighting by sufficiently fixing the fluorescent tube. CONSTITUTION:This bulb type fluorescent lamp is provided with a double U-shaped fluorescent tube 1, a holder 3 holding both end sections 1a of the fluorescent tube 1 to a tubular hold section 2, a lighting circuit 4 for lighting the fluorescent tube 1, a case 5 storing the lighting circuit 4, and a globe 7 storing the fluorescent tube 1 and constituting an envelope 6 together with the case 5. A notch section 8 is provided on the hold section 2 of the holder 3, a silicone adhesive 9 is injected into the notch section 8, and both end sections 1a of the fluorescent tube 1 are fixed and held to the hold section 2 of the holder 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact fluorescent lamp.

[0002]

2. Description of the Related Art A conventional compact fluorescent lamp is shown in FIGS.
As shown in FIG. 1, the end faces of both ends 1 a of the fluorescent tube 1 and the holder 1 are
The holding portion 2 of No. 1 is fixedly held by injecting the silicone adhesive 9 into the silicone adhesive injecting portion 10.

[0003]

However, in the conventional structure, since the end faces of the both ends 1a of the fluorescent tube 1 are uneven, the contact area between the fluorescent tube 1 and the silicone adhesive 9 is small, and the fluorescent tube is small. However, there is a problem in that the fluorescent tube 1 cannot be fixed sufficiently and the fluorescent tube 1 comes off the holder 11. Further, when the silicone adhesive 9 is injected, the silicone adhesive 9 is applied to the fluorescent tube 1.
There is also a problem that the thin tube 1b is damaged due to thermal expansion and contraction of the silicone adhesive 9 during reaching the thin tube 1b.

The present invention has been made in order to solve such a problem, and it is possible to sufficiently fix the fluorescent tube to the holder and prevent the thin tube from being damaged by thermal expansion and contraction of the silicone adhesive during lighting. (EN) A bulb-type fluorescent lamp that can be prevented.

[0005]

A compact fluorescent lamp of the present invention comprises a fluorescent tube, a holder in which both ends of the fluorescent tube are held by tubular holding portions, and a lighting circuit for lighting the fluorescent tube. A case in which the lighting circuit is accommodated, and a globe in which the fluorescent tube is accommodated and which constitutes an envelope, and the holder is provided with a notch, and the notch has a silicone adhesive. Is injected to fix both ends of the fluorescent tube to the holder of the holder.

[0006]

With this configuration, the side surfaces of both ends of the fluorescent tube and the holder of the holder can be fixed to each other with the silicone adhesive, and the contact area between the both ends of the fluorescent tube and the silicone adhesive becomes large. The holder can be sufficiently fixed and held. Moreover, since the silicone adhesive is injected into the notch of the holder, it is possible to prevent the silicone adhesive from reaching the thin tube.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1, 2 and 3, the compact fluorescent lamp of the embodiment of the present invention has a double U-shaped fluorescent tube 1 and both ends 1a of this fluorescent tube 1 in a tubular holding portion 2. A holder 3 that holds the lighting circuit 4, a lighting circuit 4 for lighting the fluorescent tube 1, a case 5 that houses the lighting circuit 4, and a globe that houses the fluorescent tube 1 and forms an envelope 6 with the case 5. 7, a notch 8 is provided in the holder 2 of the holder 3, and a silicone adhesive 9 is injected into the notch 8 to fix both ends 1a of the fluorescent tube 1 to the holder 2 of the holder 3. Have.

As described above, in the bulb-type fluorescent lamp of this embodiment, the wall of the tubular holding portion 2 of the holder 3 is partially cut away,
The fluorescent tube 1 is fixedly held in the holder 3 by injecting the silicone adhesive 9 into the both ends 1a of the fluorescent tube 1 inserted into the holding portion 2 from the notches 8. With such a configuration, the side surfaces of both ends 1a of the fluorescent tube 1 and the holding portion 2 of the holder 3 can be fixed to each other with the silicone adhesive 9, and the contact area between the both ends of the fluorescent tube 1 and the silicone adhesive 9 can be reduced. Since the size is increased, the fluorescent tube 1 can be sufficiently fixed and held on the holder 3. Further, since the silicone adhesive 9 is injected into the cutout portion 8 of the holder 3, it is possible to prevent the silicone adhesive 9 from reaching the thin tube 1b, and the silicone adhesive 9 during lighting is thermally expanded and contracted so that the fluorescent tube 1 can be protected. Thin tube 1b
Can be prevented from being damaged.

[0010]

As described above, in the compact fluorescent lamp of the present invention, the fluorescent tube, the holder that holds both ends of the fluorescent tube in the tubular holding portion, and the lighting for lighting the fluorescent tube. A circuit, a case accommodating the lighting circuit, and a globe that accommodates the fluorescent tube and constitutes an envelope with the case, and a notch is provided on the wall of the holder of the holder,
By injecting a silicone adhesive into the notch to fix both ends of the fluorescent tube to the holder of the holder, the fluorescent tube is sufficiently fixed to the holder,
Moreover, it is possible to prevent the capillary from being damaged due to thermal expansion and contraction of the silicone adhesive during lighting.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a compact fluorescent lamp according to an embodiment of the present invention.

[Fig. 2] Similarly, a bottom view of a notched main part

[Fig. 3] Similarly, an enlarged perspective view of a main part.

FIG. 4 is a partially cutaway front view of a conventional compact fluorescent lamp.

[Fig. 5] Similarly, a bottom view of a notched main part

[Explanation of symbols]

 1 Fluorescent Tube 1a Both Ends of Fluorescent Tube 1b Thin Tube of Fluorescent Tube 2 Holding Section 3 Holder 4 Lighting Circuit 5 Case 6 Envelope 7 Globe 8 Cutout 9 Silicone Adhesive

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Nakano 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electronics Industrial Co., Ltd.

Claims (1)

[Claims] 1. A fluorescent tube, a holder that holds both ends of the fluorescent tube in tubular holding portions, a lighting circuit for lighting the fluorescent tube, a case that houses the lighting circuit, and the fluorescent tube. And a glove that forms an envelope with the case, and a cutout portion is provided in the holding portion of the holder, and a silicone adhesive is injected into the cutout portion so that both ends of the fluorescent tube are A bulb-shaped fluorescent lamp characterized by being fixedly held on a holder of a holder.