JPH0339386B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Fields of Application The present invention provides a case in which a fluorescent lamp, a ballast, a starter, etc. are built into an envelope with a cap similar to that of an incandescent light bulb protruding from the envelope, and the bulb can be directly inserted into an incandescent light bulb socket. This invention relates to a light bulb base type fluorescent lamp that is configured so that it can be mounted and lit.

BACKGROUND TECHNOLOGY In general, a conventional light bulb base type fluorescent lamp is constructed as shown in FIG. Inside the enclosure, there is a double U-shaped fluorescent lamp 4,
A ballast 5, a glow starter 6, etc. are housed therein. However, the cover 2 and the glove 3 are integrally joined by an adhesive layer 7 at their mutual fitting portions, and there is a non-transparent space inside the envelope that partitions the internal space of the cover 2 and the internal space of the glove 3. A cup-shaped holder 8 is provided so that its inner surface faces the cover 2. The holder 8 has a socket 9 for the end of the lamp and a glow starter supporting protrusion 10 on its outer surface, and supports and fixes the ballast 5 on its inner surface. Reference numeral 11 indicates a noise prevention capacitor connected to the glow starter 6.

In the conventional light bulb cap type fluorescent lamp configured as described above, the fluorescent lamp 4, the ballast 5 and the glow starter 6 can be stably supported by the common holder 8. When fixing the device, it was required to be firmly fixed with screws or grommets in consideration of noise generation and heat dissipation effects. Furthermore, fixing the fluorescent lamp 4 to the holder 8 is also important, and requires difficult fixing work on both the inner and outer surfaces of the holder 8.

Problems to be Solved by the Invention Therefore, it is an object of the present invention to fix the ballast firmly and with good heat dissipation to the inner surface of the holder without using screws or grommets, and to also fix the ballast to the inner surface of the holder. To provide a light bulb cap type fluorescent lamp in which the end of the lamp can be efficiently fixed to a socket.

Means for Solving the Problems According to the present invention, a cylindrical socket for supporting an end of a fluorescent lamp is provided on the outer surface side of a holder fixed in an envelope, and a housing for accommodating a ballast is provided. A silicone chamber is provided on the inner surface side of the holder, a through hole is provided between a recess provided at the bottom of the storage chamber and the socket, and a silicone chamber is provided in the storage chamber for fixing the stabilizer. A portion of the resin layer is brought into contact with the end of the fluorescent lamp through the through hole.

Function Since the present invention is configured as described above, the stabilizer can be fixed relatively easily and firmly to the holder without using screws or grommets, thereby suppressing noise generation due to vibration of the core of the stabilizer. be able to. Further, since the silicone resin layer has good thermal conductivity, the heat generated by the stabilizer is efficiently transmitted to the holder and the envelope through the silicone resin layer, and good heat dissipation effect can be obtained. Moreover, the end of the fluorescent lamp is fixed to the holder by a silicone resin layer, and the silicone resin layer is obtained by a silicone resin liquid injected into the housing chamber, and a socket for supporting the lamp end is formed. There is no need to inject silicone resin into the

Embodiment As shown in FIG. 1, a non-transparent cup-shaped cover 2 with a protruding base 1 is attached to an outer enclosure together with a transparent globe 3 bonded using an adhesive layer 7 made of silicone resin or the like. A non-transparent cup-shaped holder 12 that forms a container and partitions the internal space of the cover 2 and the internal space of the glove 3 is attached to the inner surface of the envelope with an adhesive layer 7 so that its inner surface faces the cover 2. is fixed to. The holder 12 has two cylindrical sockets 9 on its outer surface for supporting both ends of the double U-shaped fluorescent lamp 4 provided in the globe 3, and a storage chamber for accommodating the ballast 5. 13 and a housing chamber 14 for housing the glow starter 6 on the inner surface.

A recess 15 is formed in the bottom of the storage chamber 13, and the storage chamber 13 and the two cylindrical sockets 9 are connected to each other.
As shown in the figure, both are in communication through a through hole 16 provided near their bottoms. For this reason, the ballast 5
A portion of the silicone resin layer 17 injected into the storage chamber 13 and solidified to fix the
6 into the two sockets 9 and come into contact with the ends of the fluorescent lamp 4, so that the ends of the fluorescent lamp 4 are also firmly fixed to the holder 12. Note that the glow starter 6 in the storage chamber 14 is sandwiched between two parallel partition walls forming the storage chamber 14.

As shown in FIG. 3, a through hole 18 is formed at the bottom of each of the two cylindrical sockets 9, through which the evacuation thin tube portion of the fluorescent lamp 4 and the lead wire are inserted.

Effects of the Invention According to the present invention, as described above, not only is it easier to fix the ballast to the holder and the end of the fluorescent lamp to the holder, but also noise generation from the ballast can be suppressed. Moreover, the heat dissipation of the ballast and the fluorescent lamp can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a light bulb cap type fluorescent lamp embodying the present invention, Fig. 2 is a side sectional view of the holder of the fluorescent lamp, and Fig. 3 is a plan view of the holder as seen from the inside. FIG. 4 is a side sectional view of a conventional light bulb cap type fluorescent lamp. 1...Base, 2...Cover, 3...Glove,
4... Fluorescent lamp, 5... Ballast, 9... Socket,
12...Holder, 15...Recess, 16...Through hole,
17...Silicone resin layer.

Claims (1)

[Claims] 1. In an envelope consisting of a cup-shaped cover with a protruding cap and a glove coupled to the cover, a cup-shaped holder that partitions the internal space of the cover and the internal space of the glove is placed inside the envelope. is fixed to face the cover, a cylindrical socket for supporting the end of a fluorescent lamp provided in the globe is provided on the outer surface of the holder, and a storage chamber for accommodating a ballast is provided on the holder. a silicone resin layer provided in the accommodation chamber for fixing the stabilizer; A light bulb cap type fluorescent lamp, characterized in that a portion of the fluorescent lamp is brought into contact with an end portion of the fluorescent lamp through the through hole.