JPH0381905A - Fluorescent lamp device - Google Patents

Abstract

PURPOSE:To facilitate installation and lessen dispersion of the mounting strength by screw-fitting lighting circuit components and a light emitting tube to a cover through a support. CONSTITUTION:A chassis 8 as a support is accommodated in an envelope 1. To this chassis 8 are fixed a stabilizer 9, a fluorescent lamp 10, and a lighting tube. These stabilizer 9 and lamp 10 are mounted to a cover 2 with fixing of the chassis 8 to the cover 2 with screws 22. On the inner surface of this cover 2 a mounting boss 17 is formed to constitute a wall thickness, and the screws 22 are driven into this boss 17, which increases the strength of this place of fixation. This eliminates fear of deformation of the cover 2.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention includes a cover having a base and a glove forming an envelope, and a lighting circuit component and a light emitting The present invention relates to a fluorescent lamp device configured to house a tube so as to be compatible with an incandescent lamp.

(Prior Art) Conventionally, this type of fluorescent lamp device has an envelope formed by a cover with a screw-type cap at the end and a globe connected to the cover. In addition to housing lighting circuit components such as ballasts and lighting tubes, there are also known ones that house a curved arc tube.

In such a fluorescent lamp device, the lighting circuit components and the arc tube are attached to a support member called a chassis or the like, and this support member is fixed to the cover.

In this case, conventionally, the support member is made of synthetic resin, and this support member has a portion that supports the lighting circuit components, the lighting tube, and the arc tube, and also has a cylindrical portion at the upper end, This cylindrical part was made to protrude to the outside through an insertion hole formed at the top of the cover, and a structure was adopted in which a base was bonded to this protruding end.

(Problem to be Solved by the Invention) However, in the conventional structure described above, the cylindrical portion is integrally formed with the support member, so the shape of the support member is extremely complicated, the amount of resin used is large, and the molding The type becomes complex. In order to simplify the mold, the support member is sometimes divided into multiple parts and these parts are joined by ultrasonic welding, but this type of structure is labor-intensive and has the drawback of causing variations in joint strength. be.

For this reason, in the conventional case, there is a problem that the product cost increases.

The present invention aims to provide a fluorescent lamp device in which a support member supporting lighting circuit components and an arc tube can be easily attached to a cover, there is little variation in connection strength, and the cost is low.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, lighting circuit components and an arc tube housed in an envelope are fixed to a support member, a screw is inserted through the support member, and the screw is inserted into the support member. is screwed to a mounting boss formed on the inner surface of the cover that is thicker than other parts, and the lighting circuit component and the arc tube are screwed to the cover via the support member. do.

(Function) According to the configuration of the present invention, since the support member is screwed to the cover, it is not only easy to assemble, but also there is less variation in the strength of the attachment. Furthermore, the shape of the support member is simplified, the mold is less expensive, and the amount of resin material used can be reduced.

Since the screws are screwed into thick mounting bosses formed on the inner surface of the cover, the strength of the cover is increased, and since the screws are not visible from the outside, the appearance is good.

(Example) An example of the present invention will be described below based on the drawings.

In the figure, 1 indicates an envelope, and this envelope 1 is composed of a substantially bowl-shaped cover 2 with an open bottom end, and a substantially hemispherical globe 3 connected to the opening of this cover 2, It has an approximately spherical shape as a whole.

The cover 2 is made of white synthetic resin, and has a cylindrical portion 4 integrally protruding from the top. A cap 5 is attached to the outer periphery of this cylindrical portion 4.

The cap 5 is of a threaded type, such as an E26 type, and is fixed to the cylindrical portion 4 by adhesive, caulking, or other means.

The glove 3 is made of transparent synthetic resin, and the cover 2
The glove 3 is connected to the cover 2 by fitting and locking a locking pawl 6 formed in the opening with a locking receiving portion 7 formed on the glove 3.

A chassis 8 is housed within the envelope 1 as a support member. The chassis 8 has a substantially rectangular box shape with an open top, and a ballast 9, a fluorescent lamp 10, and a lighting tube (not shown) are attached to the chassis 8.

The ballast 9 is housed in the box-shaped portion through an opening on the upper surface of the chassis 8.

A bent fluorescent lamp 10 is supported on the chassis 8. The fluorescent lamp 10 of the full-length embodiment includes an arc tube 11 bent into a saddle shape. This arc tube 11 is made by bending a straight glass bulb into a U-shape at the center between its two ends, and forming the space between this bend and both ends into a U-shape again in a direction perpendicular to the bending direction. Both end portions 12.12 are in the shape of a straight tube and are positioned adjacent to each other in the same direction.

Incidentally, a thin tube 13 after sealing and cutting an exhaust pipe is provided protruding from the end face of the arc tube 11.

Further, electrodes (not shown) are provided inside both ends of the arc tube 11, and a phosphor coating is coated on the inner surface of the arc tube 11.

Such an arc tube 11 is supported by the chassis 8 with both ends 12 and 12 thereof facing the base 5 side.

That is, as shown in FIG. 1, a mounting protrusion 14 is integrally provided on one side of the chassis 8 in a protruding manner. The straight end portions 12, 12 of the arc tube 11 are mounted on both sides of the protrusion 14, that is, the protrusion 14 is mounted between the end portions 12 and 12 of the arc tube 11. Ru. A presser 15 is provided on the outside of both ends 12.12 of the arc tube 11.
This holding tool 15 is fixed to the projection 14 by a screw 16.

That is, the screw 16 is inserted through the presser 15 and screwed onto the protrusion 14 for installation, so that both ends 12 and 12 of the arc tube 11 are held between the side surface of the chassis 8 and the presser 15. It is something that exists.

In this way, the chassis 8 to which the ballast 9, the fluorescent lamp 10, and the lighting tube (not shown) were attached is attached to the cover 2.
Fixed.

That is, an attachment boss portion 17.17 is formed on the inner surface of the cover 2. These mounting bosses 17.17 are thicker than other parts of the cover 2, extend downward, and have screw holes 18.18 opening on the lower surface.

On the other hand, the chassis 8 is provided with an arm portion 20.20 extending in the horizontal direction, and the arm portion 20.2o is provided with a mounting hole 21.21 extending vertically. Screws 22.22 are inserted into these mounting holes 21.21 from below, respectively.
2 is screwed into a screw hole 18.18 formed in the mounting boss portion 17.17 of the cover 2.

For this reason, the chassis 8 is attached to the cover 2 by screws 22.22.
It is fixed to .

In this fixed state of the chassis 8, the upper surface of the chassis 8 comes into contact with a stopper wall 23 formed integrally with the inner surface of the cover 2, so that the mounting position is restricted.

Further, the cover 2 is formed with ventilation holes 24 for discharging heat inside the envelope 1 during lighting.

The translucent globe 3 is fitted from below so as to cover the chassis 8 and fluorescent lamp 10 as described above.

The operation of the fluorescent lamp device having such a configuration will be explained.

Since the chassis 8 has a substantially rectangular box shape, the shape is simple, the mold for this is inexpensive, and the amount of resin used can be reduced.

In addition, the chassis 8 does not need to be divided into a plurality of parts, and there is no need for joining by ultrasonic welding for this purpose, which reduces manufacturing effort and reduces manufacturing costs.

The ballast 9 and the fluorescent lamp 10 attached to the chassis 8 are attached to the cover 2 by fixing the chassis 8 to the cover 2 with screws 22 and 22.

In this case, mounting bosses 17.17 are formed on the inner surface of the cover 2 and are thicker than other parts, and the screws 22.22 are screwed into these mounting bosses 17.17. The strength of the parts is high, and there is no possibility that the cover 2 will be deformed.

Then, use the screw 22.22 to attach the mounting boss 17.17.
The top surface of the chassis 8 fixed to the cover 2 comes into contact with a stopper wall 23 formed integrally with the inner surface of the cover 2, and the mounting position is regulated, so tightening the screws 22 and 22 should be done to reduce variations in torque. I can do it.

Since such screws 22.22 are not directly visible from the outside, there is no need to worry about spoiling the appearance.

In the above embodiment, the arc tube 12 is fixed to the chassis 8 with the presser 15, but the present invention is not limited to this.
An adhesive may be used as a means for fixing 2 to the chassis 8.

Further, the shape of the arc tube is not limited to the saddle shape, but may be, for example, U-shaped, or a plurality of glass bulbs previously processed into a U-shape are arranged in parallel and their ends are joined together.

Further, the lighting circuit components attached to the chassis 8 are not limited to ballasts and lighting tubes, but may be electronic lighting circuit components such as transistors.

〔Effect of the invention〕

According to the present invention described in detail above, since the support member is screwed to the cover, it is not only easy to assemble, but also there is less variation in the strength of the attachment.

Furthermore, the shape of the support member is simplified, the mold is less expensive, and the amount of resin material used can be reduced, resulting in lower product costs. Since the screws are attached to thick mounting bosses formed on the inner surface of the cover, the strength of the cover is increased, and since the screws are not visible from the outside, the appearance is good.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view of the entire device, FIG. 2 is an exploded sectional view, and FIG.
■It is a cross-sectional view of the line. 1... Envelope, 2... Cover, 3... Glove,
5... Base, 8... Chassis, 9... Stabilizer, 1
0... Fluorescent lamp, 11... Arc tube, 17...
Attach to the boss, 20... Attach to the arm, 22... Screw.

Claims (1)

[Claims] A cover with a cap and a globe connected to the cover form an envelope, and the lighting circuit components and the luminous tube are housed in the envelope, and these lighting circuit components are housed. and a fluorescent lamp device in which the arc tube is fixed to a support member and the support member is attached to the cover, wherein a mounting boss portion that is thicker than other parts is integrally formed on the inner surface of the cover, and the support member is attached to the support member. A fluorescent lamp device characterized in that the lighting circuit component and the arc tube are attached to the cover via the support member by inserting a screw into the support member and screwing the screw into the attachment boss portion.