JPS6039733A - Discharge lamp device - Google Patents

Abstract

PURPOSE:To reduce parts material and cost and improve mass productivity by integratedly forming a starter holding section that holds a starter at a separate position from the surface of a partition body with the bottom that covers the discharge lamp bottom surface of the starter side. CONSTITUTION:In a shell 2, a rise section 51 that thermally disconnects a stabilizer and a starter 4 and a partition body 5 with the bottom 52 that is formed integratedly with this rise section and covers the lamp bottom section of at least the starter 4 side. A starter holding section 8 is formed integratedly formed at the rise section 51 of this partition body 5. In addition, this starter holding section 8 forms an insertion section 81 with a U-shaped cross section on the tip and a small piece with a support section 82 that holds this insertion section 81 and elastically inserts the starter 4. As a result, the starter 4 can easily by held without using adhesives at the holding section 8.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a discharge lamp device in which a shell having a bulb base is fitted to the bottom of a discharge lamp, and electrical components such as a ballast are housed inside the shell. .

Recently, various discharge lamp devices of this type have begun to be put into practical use as a substitute for incandescent light bulbs. Since this discharge lamp device is intended to replace an incandescent light bulb, the overall shape and dimensions of the device will be made similar to that of an incandescent light bulb. However, since the light emitting part is a discharge lamp, it requires electrical parts such as a ballast and a starter.Moreover, among the electrical parts, the starter uses heat from the ballast and lamp to maintain the reliability of the parts. It was necessary to reduce the size of the shell in order to accommodate this while minimizing the influence of this.

For this reason, it has been proposed to house the starter in the shell by providing a partition to block heat from the ballast and lamp. By doing this, the starter is protected from heat, and malfunctions and short lifespans are significantly reduced, and the shell is made smaller.

However, the heat conducted through the partition body is transmitted to the star 7 with a considerable amount of interference, and in order to prevent this, measures are taken in which the starter is wrapped in a heat insulating material and fixed using an adhesive.

FIG. 1 is a schematic configuration diagram showing a conventional discharge lamp device.
1) is a discharge lamp, I is the bottom of this discharge lamp (1),
(2) is a substantially cylindrical shell that fits and is fixed to this bottom part αυ, (3) is a tt housed in this shell (2), a ballast that becomes part of the lighting circuit, and (5) is the above-mentioned discharge lamp (
1) so as to cover the bottom 00 side of the shell (
2), a rising portion (51) that thermally shields the ballast (3) and the starter (4) and the discharge lamp (
(1) is a partition having a bottom surface portion (52) that covers the bottom α0 surface of (6) is a heat insulating material wrapped around the starter (4), (
7) is an adhesive for fixing the starter (4) wrapped with the heat insulating material (6) to the rising part (5) of the partition (5). (11 is a 126 type light bulb metal plate that is fixed to one end of the shell (2).

A discharge lamp device having such a configuration has a bottom part (
52) and the rising part (51) are respectively discharge lamps (1
) to shield the heat from the bottom aυ of the ballast (3) and the heat from the ballast (3).

Furthermore, by covering the starter (4) with the heat insulating material (6), the starter (4) is protected from the effects of heat as much as possible, and malfunctions and short lifespans are greatly reduced. However, at the manufacturing stage, it is necessary to wrap the starter (4) with the heat insulating material (6) and to bond it to the partition (5), which requires the use of the heat insulating material (6) and the adhesive (
7), the number of component materials increases, and the number of work steps is also large, which impairs mass production and makes it impossible to reduce costs.

[Summary of the invention]

This invention was made in view of the above circumstances.

It is an object of the present invention to provide a discharge lamp device that can reduce component materials while solving thermal problems, improve mass productivity, and reduce costs.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is an enlarged sectional view of a main part showing an embodiment of the present invention, and (8) is a starter holding part, which is formed integrally with the rising part (51) of the partition (5).

Furthermore, this starter holding part (8) has a clamping part (81) having a U-shaped cross section at the tip, and a support part (82) that supports the clamping part (81) between the two, so that the starter (4) can be elastically held. It forms small pieces that can be held together. Therefore, the starter (4) can be easily held by the starter holding portion (8) without using an adhesive.

In addition, the 51C stator holding part (8) can be formed from a small piece to reduce the conduction heat to the starter (14) while arranging the partial pressure starter (4) at a distance from the partition (5). The insulation material that was previously used is also no longer needed.

Therefore, since the heat insulating material and the adhesive can be omitted, the number of component materials can be reduced, and the work steps involved can also be omitted, which simplifies manufacturing, improving mass productivity and reducing costs.

As described above, according to the discharge lamp device of the present invention, lighting circuit components such as a ballast and a starter are housed in the shell fitted to the bottom of the discharge lamp, and the lighting circuit components such as the ballast and starter are fixed to the bottom of the discharge lamp and the shell is fitted to the bottom of the discharge lamp. and a riser for thermally shielding the ballast and the starter at internal pressure.

A starter holding portion for holding the starter at a position separated from the surface of the partition is integrally formed on the partition that has a bottom portion that is integrally connected to the rising portion and covers at least the bottom surface of the lamp on the starter side. This minimizes the influence of heat on the starter, prevents scooter malfunctions and shortened service life, and eliminates the need for adhesives and heat insulators, which reduces component materials, simplifies manufacturing, and improves mass production. Improvements and cost reductions can be beneficial.

In this embodiment, the starter holding portion is provided protruding from the rising portion of the partition, but this effect is not impeded even if the starter holding portion is provided protruding from the bottom of the partition.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing a conventional discharge lamp device. FIG. 2 is a cross-sectional view of the main parts of a discharge lamp device showing one embodiment of the present invention, where (1) is the discharge lamp and aυ is the bottom. (2) is shell, (3) is ballast, (4) is starter,
(5) is the partition # (51) is the rising J part, (52)
(8) is the bottom surface part, and (8) is the starter holding part. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa Fig. 1 1θ Fig. 2 & 5 no βl ■ /-1--4? to'

Claims (3)

[Claims] (1) A discharge lamp, a shell fitted to the bottom of the discharge lamp, and a ballast housed within the shell. The lamp includes a lighting circuit component such as a starter, and a partition body that is integrally connected to the bottom of the discharge lamp and has a bottom surface that covers at least the bottom surface of the lamp on the starter side. A discharge lamp device characterized in that the partition body is integrally formed with a starter holding portion that protrudes toward the starter side and holds the starter at a position separated from the surface of the partition body. (2) The discharge lamp device according to claim 1, wherein the starter holding portion is provided at the rising portion. (3) The discharge lamp device according to claim 1, wherein the starter holding portion is a clamping piece that elastically clamps the starter.