JPS6116461A - Electric lamp type fluorescent lamp - Google Patents

Abstract

PURPOSE:To make it possible to obtain the improvement of heat radiation effect of a lamp whole body and the stabilizer of smaller size by making a structure filled with a compound in the central space portion of the stabilize arranged between a luminous tube and a base and in the hollow portion of the base. CONSTITUTION:Heat generated by a luminous tube 1 is transmitted to a base 13 with a compound 16 and is released by heat radiation and also, a stabilizer 1 is released its heat not only by heat radiation from its periphery but also, transmitting the heat to a base 13 through the compound 16, and is released it by heat radiation. In this case, since the calorific value of a fluorescent luminous tube 1 is low and it is about one-third as the value as an incandescent lamp, the base 13 may be able to have ample heat radiation capacity, and any troubles may not be happened when the heat is released by heat radiation from the center portion of the stabilizer 4. And, because the lead wire 17 of a glow starter 15 is insulated in electricity from the stabilizer 4 and the base 13 with the compound 16, the working condition of its wiring becomes excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a self-ballasted fluorescent lamp, and relates to one equipped with a discharge lamp ballast.

[Conventional technology]

Conventional compact fluorescent lamps of this type include, for example,
As described in Publication No. 78507, a structure is adopted in which the base of the arc tube is fitted into an annular ballast through a gap, and the ballast is provided with a base electrically connected to the arc tube. was.

[Problems that the invention solves]

In the above-mentioned conventional compact fluorescent lamps, the ballast is fitted around the arc tube with a gap, which means that the ballast's heat is only radiated from the surroundings, and the ballast's heat tends to concentrate in the center. There were problems such as the heat dissipation from the parts was small, the heat dissipation effect was low, and the ballast had to be large.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a self-ballasted fluorescent lamp that can improve the heat dissipation effect of the entire bulb and make the ballast smaller so that the entire bulb can be made smaller.

[Means to solve or cover the problem]

The self-ballasted fluorescent lamp of the present invention has an annular ballast installed between a fluorescent light emitting tube and a base electrically connected to the fluorescent light emitting tube, and a ring-shaped ballast installed between the fluorescent light emitting tube and the base. The central space of the discharge lamp ballast and the hollow part of the cap communicating with this space are filled with a compound, the lighting tube is embedded in this compound, and the live part of the lighting tube is insulated from the ballast and the cap. It is characterized by this.

[Function] The compact fluorescent lamp of the present invention generates less heat than an incandescent bulb, and an incandescent bulb does not have enough leeway to dissipate heat from heat sources other than the bulb itself. Since the heat generated is small, the heat of the ballast is radiated from the cap through the compound filled around the ballast and the central space, and the heat of the arc tube is also radiated from the cap through the compound.

〔Example〕

The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a substantially U-shaped fluorescent light emitting tube, and a filament (not shown) is provided inside both ends, and a base 2 that holds both ends of the light emitting tube 1 together can be attached or detached with a presser 3 or fixedly. It is attached to the lower side of the stabilizer 4.

The stabilizer 4 is connected to an annular powder core 5, which powder core 5
, 5, and a coil 7 disposed in an annular groove 6 formed on the joint surface of the two iron cores 5, 5.
, 5 through a circle! It is integrally connected to the presser tools 3 and b at the connector 1-10. In the arc tube 1, the stem portion 8 is disposed in the central space 9 of the ballast 4, and is held at the center of the lower surface of the ballast 4 by the presser 3.

Further, an annular base part 12 of a cylindrical holder 11 molded from an insulating material is integrally fixed to the upper surface of the stabilizer 4 with the bolt 10, and the inner periphery is connected to the central space part 9 of the stabilizer 4. is communicated with.

Next, reference numeral 13 denotes a cap, which is fitted and fixed to the holder 11 and electrically connected to the arc tube 1.

Further, a lighting tube 15 is housed in the hollow portion 14 of the cap 13. The lead wire 17 of the lighting tube 15 is electrically connected to the luminous tube 1 and the ballast 4 within the medium fire space 9 of the ballast 4, which communicates with the hollow portion 14 of the base 13. has been done.

Next, 16 is a resin compound such as a polyester resin with high thermal conductivity, which connects the central space 9 of the ballast 4 and the base 1.
3 is integrally filled with the hollow part 14 of the lighting tube 15.
is embedded in compound 16.

Next, the operation of this embodiment will be explained.

The heat of the arc tube 1 is conducted to the cap 13 by the compound 16 and is radiated, and the heat is not only radiated from the ballast 1 from its surroundings (from the central space 9 to the cap 13 via the compound 16). The heat is conducted and radiated.In this case, the fluorescent light emitting tube 1 has a calorific value of about 3% compared to an incandescent lamp.
Since it is about one-fold lower, there is plenty of room for heat to be radiated from the base 13, and there is no problem even if the heat is radiated from the center of the ballast 4.

Further, in the lighting tube 15, the lead wire 11 is electrically insulated between the ballast 4 and the base 13 with the compound 1G, and the wiring workability of the lead wire 17 is improved.

〔Effect of the invention〕

According to the present invention, since the central space of the ballast disposed between the arc tube and the cap and the hollow portion of the cap are filled with powder, not only the arc tube is heated, but also the ballast teeth,
Heat is radiated from the outer periphery and from the center where hot air tends to concentrate and get trapped, improving the heat radiation effect, and the ballast can be made smaller compared to the I14 structure, which surrounds the arc tube with gaps. .

[Brief explanation of drawings]

The figure is a sectional view of a self-ballasted fluorescent lamp showing an embodiment of the present invention. 1... Arc tube, 4... Ballast, 9... Central space of ballast 4, 13... 1'' gold, 14... Hollow part of base 13, 1
6.2゛J N Bound.

Claims (1)

[Claims] (1) A fluorescent light emitting tube, a cap connected to this light emitting tube,
It is characterized by comprising an annular discharge lamp ballast attached between the arc tube and the cap, and a compound is filled in a central space of the ballast and a hollow part of the cap communicating with the space. A light bulb-shaped fluorescent lamp.