JP2746705B2 - Fluorescent light - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp mainly used in a device such as a facsimile, a document illuminator of a copying machine, and the like.

2. Description of the Related Art Conventionally, this type of fluorescent lamp includes a base cap 1, a base pin 2 and an insulating plate 3 as shown in FIG. 3, and a lead wire 5 of a fluorescent lamp 4 is inserted into the base pin 2. It was soldered.

However, in such a conventional fluorescent lamp, the connection with a power supply for lighting the fluorescent lamp requires a contact 6a, a socket 6 including an insulating cover 6b, and a lead wire 7. Yes,
There is a disadvantage that the number of parts is large and the cost is high.
At the same time, since the number of electrical connection points increases, contact failure is likely to occur. In addition, there is a problem that a space for mounting the socket 6 is required, and a device for mounting the fluorescent lamp becomes large.

The present invention has been made to solve such a problem, and it is an object of the present invention to provide a fluorescent lamp which is inexpensive, has high reliability, and can be installed in a small space.

Means for Solving the Problems To solve this problem, a fluorescent lamp according to the present invention comprises a synthetic resin base for holding a bulb end, and two metal square bars having one end fixed to the base. And an external lead wire to be connected to a power supply is wound around each of the two square rods and connected thereto.

Operation With this configuration, since the lead wire of the fluorescent lamp and the external lead wire are directly connected via the metal square bar, there is no need to separately provide a socket, and the space for mounting can be reduced. Further, the number of parts is reduced, the cost can be reduced, and the connection part due to the soldering or pressing of the socket part is eliminated, and the connection is made only by winding around a square bar, so that the reliability of the electrical connection is increased.

Embodiment FIG. 1 is a perspective view of a main part of a fluorescent lamp according to an embodiment of the present invention. In FIG. 1, 4 is a fluorescent lamp, 5 is a lead wire led out from the end of the glass bulb, 7 is an external lead wire to be connected to a power supply, 8 is a fluorescent lamp base, and 9 is a square bar made of metal. Is shown.

One end of the square bar 9 is press-fitted into the base 8 and fixed, and is provided at right angles to the tube axis of the fluorescent lamp 4.

FIG. 2 is a sectional view of a main part of the fluorescent lamp according to the embodiment of the present invention, showing a state where the fluorescent lamp 4 and the external lead wire 7 are connected and fixed.

The square rod 9 is attached near the position where the lead wire 5 is led out from the end of the glass bulb of the fluorescent lamp 4 so as to sandwich the thin tube 10 of the fluorescent lamp 4. By being connected to the square bar 9 so as to fit the entire length of the fluorescent lamp 4, the size of the fluorescent lamp 4 in the longitudinal direction can be minimized.

In addition, the edges of the corners 9 are joined in such a manner that the surface portions of the lead wire 5 and the external lead wire 7 are recessed so that they are electrically connected securely and mechanically strong.

With the above configuration, the fluorescent lamp according to the embodiment of the present invention can be connected to the external lead wire 7 with the base 8 and the metal square bar 9, and there is no need to provide a separate socket. The number of parts is small, and the effect of cost reduction is great.

Also, there is no soldering or pressing connection of the socket part,
Since only connection by winding is performed, the reliability of electrical connection is improved. Further, since no space is required for mounting the socket and the structure of the base itself can be simplified and miniaturized, the space for mounting can be reduced, and the apparatus for mounting the fluorescent lamp can be miniaturized.

Effect of the Invention As described above, the present invention can reduce the number of parts, so that the cost can be reduced, the reliability of the electrical connection can be improved, and the base can be downsized. Therefore, it is possible to provide a fluorescent lamp having an excellent effect that a mounting space is reduced and a device to which the fluorescent lamp is mounted can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a fluorescent lamp according to an embodiment of the present invention,
FIG. 2 is a cross-sectional view of a main part, and FIG. 3 is a partial cross-sectional view of a conventional fluorescent lamp. 4… fluorescent light, 5… lead wire, 7… external lead wire, 8
…… Base, 9 …… Square stick.

Claims (1)

(57) [Claims] 1. A synthetic resin base for holding a valve end portion, and two metal square bars having one end fixed to the base, each of the two square bars being connected to the glass bulb. A fluorescent lamp, wherein the derived lead wire and an external lead wire to be connected to a power supply are wound and connected.