JPH10275555A - Fluorescent lamp device and lighting equipment - Google Patents

Abstract

(57) Abstract: An object of the present invention is to provide a fluorescent lamp device that can easily attach a base to a cover or a chassis with a simple configuration. SOLUTION: A fluorescent lamp L having a pair of electrodes configured to form a bent discharge path, a lighting circuit 6 electrically connected to the fluorescent lamp L, and a slit 13 at one end side along the axial direction. And a cover part 1 having a dome-shaped part supporting the fluorescent lamp L and the lighting circuit 6 on the other end side, a cover part 1 having a large-diameter base fitting insertion part 11 on the base end side, and a cover. The skirt portion 21 at the tip of the shell 22 is fitted into the base fitting insertion portion 11 of the portion 1 and the skirt portion 21 or the shell 22 is partially depressed inward.
4 shows a fluorescent lamp device L including a base 2 locked to a cylindrical portion 12 and a lighting fixture equipped with the fluorescent lamp device L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp device provided with a fluorescent lamp and a lighting circuit, and a lighting fixture.

[0002]

2. Description of the Related Art An E26 type base commonly used for an incandescent lamp is attached to a fluorescent lamp, and a lighting circuit component such as a ballast is incorporated therein. A bulb-type fluorescent lamp device has been put to practical use.

In the fluorescent lamp of this bulb-type fluorescent lamp device, a glass tube bulb having electrodes sealed at both ends is bent into a substantially U-shape, and the substantially U-shaped bulb is further bent into a substantially U-shape.
A so-called saddle-shaped bent valve or a plurality of straight tubular glass tube valves formed into a substantially U-shape or a W-shape via a connecting pipe are made compact. The fluorescent lamp bulb and the lighting circuit component are attached to a cover or a chassis having a housing formed of a synthetic resin material, and are covered with the cover.

On the other side of the cover or the chassis on which the fluorescent lamp bulb is mounted, a spiral groove is formed in the outer periphery of the cylindrical portion, and an E26 type base is screwed into the spiral groove and mounted. ing.

[0005]

However, in the above-mentioned structure for mounting a base, since a spiral groove is formed on the outer periphery of a cylindrical portion, it takes a lot of time to process a mold, and a spiral groove for adjusting to a screw groove of the base. However, there is a demand for high precision, and there is a problem that manufacturing costs increase. In addition, as described above, the lamp device can be supported almost all around the screw portion of the base, and the connection can be easily made by screwing the screw portion of the base into the spiral groove of the cover or the chassis. It seems like this screw is screwed 2.5 to 3.5 times,
Since it has to rotate, the installation work is complicated and also requires complicated equipment for automation work.
Here, too, there is a problem of cost increase.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fluorescent lamp device in which a base is easily attached to a cover or a chassis with a simple structure.

[0007]

According to a first aspect of the present invention, there is provided a fluorescent lamp apparatus comprising: a fluorescent lamp having a pair of electrodes configured to form a bent discharge path; A connected lighting circuit, a cylindrical portion having a slit formed along the axial direction on one end side and having a large-diameter base fitting insertion portion on the base end side, and supporting the fluorescent lamp on the other end side and a lighting circuit. And a skirt portion at the tip of the shell is fitted into the mouthpiece insertion portion of the cover portion, and the skirt portion or the shell is partially recessed inward and locked to the cylindrical portion. Characterized in that it is provided with

The fixing of the base is fitting to a base fitting insertion portion formed to have substantially the same diameter as the inner diameter of the skirt portion. The contact surfaces are parallel to each other and the base is bent and fixed to the lamp shaft. Never be. In addition, since the base metal side is cut into the base fitting insertion portion made of synthetic resin by punching or the like at the opposing portion of the skirt portion, both are securely engaged. In addition, the engagement between the two is not limited to punching, and an engagement recess may be formed in advance in both of them, and the engagement recesses may be fixed later by means such as pressing.

Further, the large-diameter and small-diameter cylindrical portion side of the cover portion to which the base is attached is straight without a thread groove, so that the molding is easy. Further, by providing the slit, for example, even if there is a variation in the inner diameter of the base, the slit absorbs the gap, and the external lead wire can be guided to the slit and led to the outside.

A fluorescent lamp device according to a second aspect of the present invention includes a fluorescent lamp having a pair of electrodes configured to form a bent discharge path, and a lighting circuit electrically connected to the fluorescent lamp. A cylindrical portion having a slit formed along the axial direction on one end side and having a large-diameter base fitting insertion portion on the base end side, a chassis supporting the fluorescent lamp and the lighting circuit on the other end side, and a fluorescent lamp. A cover portion locked to the chassis so as to cover a part and the lighting circuit, and a skirt portion at the tip of the shell is fitted into the base fitting insertion portion of the chassis, and the skirt portion or the shell is partially recessed inward. And a base locked to the cylindrical portion.

Since a cylindrical portion having a mouthpiece insertion portion is formed on the chassis in place of the cover portion according to the first aspect, the same operation as the first aspect is achieved.

A fluorescent lamp device according to a third aspect of the present invention is characterized in that the base fitting insertion portion and the base are indented and locked at a plurality of locations on the circumference.

[0013] At least one locking portion is sufficient, but by using a plurality of locking portions, the balance can be maintained and the rotation at the time of attaching and detaching the socket is not hindered.

A fluorescent lamp device according to a fourth aspect of the present invention is characterized in that a cut-and-raised piece of a base is locked in a recess formed in a cylindrical portion.

In addition to the formation of the projections such as punching and the like, the same operation as described in the above-mentioned claim 1 can be obtained by locking with the cut and raised pieces.

The fluorescent lamp device according to a fifth aspect of the present invention is characterized in that an external lead wire of the lamp is led out from a slit formed in a cylindrical portion and is connected to a skirt portion of a base.

By leading one of the external leads in a short section, it is possible to prevent a short circuit between the leads.

According to a sixth aspect of the present invention, there is provided a fluorescent lamp device, wherein the bulb of the fluorescent lamp is connected to one or more curved glass tubes or a plurality of straight tube glass tubes. It is characterized by having a bent portion in which is formed.

The bulb of the fluorescent lamp can be made more compact.

A fluorescent lamp device according to a seventh aspect of the present invention is characterized in that a light control member for covering the fluorescent lamp is provided on the cover.

If the globe is mounted and turned on, illumination in a soft atmosphere with less glare can be obtained. Further, the light control body referred to in the present invention is a glove exhibiting the light diffusion action,
It refers to a glove having a filter function for changing the emission color, a colorless and transparent protective glove for preventing breakage of the glass tube bulb, and may not completely cover the entire glass tube bulb.

The lighting apparatus according to claim 8 of the present invention is the fluorescent lamp apparatus according to any one of claims 1 to 7, wherein the lighting apparatus is mounted on the apparatus main body, a socket provided on the apparatus main body, and the socket. And characterized in that:

The fluorescent lamp device according to any one of the first to seventh aspects has the same function as that of the first to seventh aspects.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the bulb-type fluorescent lamp device L, FIG. 2 is an enlarged front view showing a main part in a process of covering the cover with the base in FIG. 1, and FIG. 3 is a main part after the base is covered. It is a front view which expands and shows.

In the figure, reference numeral 1 denotes a cover, and this cover 1
It is formed of an electrically insulating heat-resistant synthetic resin material such as BT resin, and has an E26 type base 2 attached to one end thereof. The other end of the cover 1 has a dome shape, and a disc-shaped fixing plate 3 made of a heat-resistant synthetic resin material such as PBT resin closes the opening at the lower opening in the figure. Is fixed. The fixing of the fixing plate 3 is performed by the engagement of an adhesive (not shown) and a locking uneven portion (not shown) formed on both.

A fluorescent lamp 4 has a saddle-shaped discharge path obtained by bending a glass tube bulb 41 into a substantially U-shape and further bending the glass tube bulb 41 into a substantially U-shape. An electrode (not shown) is provided. A phosphor film (not shown) is formed on the inner surface of the glass tube bulb 41, and a rare gas such as mercury and argon is sealed therein as a discharge medium.

The fixed plate 3 having the shape of a circular plate is
An annular mounting groove for mounting the light control body 5 is formed on a continuous surface on the outer peripheral side of the bulb mounting cylindrical portions 31,. The ends of the bulb 41 are inserted into the bulb mounting cylinders 31, and are fixed to each other via a thermosetting adhesive such as silicone.

Further, inside the cover part 1 is housed a wiring board or the like on which a lighting circuit 6 is mounted, for example, a circuit component 61 for high-frequency lighting using a transistor inverter is mounted. Are electrically connected to external lead wires 42 and 43 of the fluorescent lamp 4.

Reference numeral 5 denotes a light control body, which is a substantially shell made of synthetic resin or glass having a light-diffusing property, which is formed to cover the substantially saddle-shaped fluorescent lamp 4 and has an open end and a hemispherical tip. A glove that is shaped. The glove 5 has an opening inserted into the annular concave portion of the fixing plate 3, and a gap is filled with a thermosetting adhesive such as a silicone-based adhesive to be joined or joined to each other. ) Can be fixed by engaging.

More specifically, the side of the cover 1 to which the base 2 is attached has cylindrical portions 11 and 12 formed in two steps of large and small diameters. The skirt portion 21 of the E26 type base 2 is attached to the outer periphery in a fitted state. The outer diameter of the small-diameter portion 12 is substantially the same as the inner diameter of the shell 22 of the base 2, and a pair of slits 13, 13 (shown as one in FIG. .) Is formed. The slit 13 may be formed up to the large-diameter portion 11 as shown in the figure.
2 may be in the shape of a groove in which it is accommodated.

The skirt portion 21 of the base 2 fitted into the cylindrical base fitting portion 11 is provided with a concave portion 24 which is punched from the outside facing away (180 degrees apart) and pressed inward. , 24. Further, at this time, the recessed portions 14, 14 are also formed in which the fitting portion 11 is also dented.

Further, one external lead wire 42 of the lamp 4 is led out of the one slit 13 and is connected to the base 2.
The outer lead wire 43 extends substantially in the center of the cylindrical portion 12 and is electrically connected to the eyelet portion 23 by welding or soldering. Note that the upper side of the slit 13 is inclined
This is for facilitating the extraction of the lead wire 42.

In the light bulb-type fluorescent lamp device L having such a configuration, the base 2 is fixed to the base fitting insertion portion 11 formed to have substantially the same diameter as the inner diameter of the skirt portion 21.
The contact surfaces are parallel to each other, so that the base 2 is not bent and fixed to the lamp shaft, and concentric light distribution characteristics can be obtained when the lamp is mounted on the socket and lit. In addition, punching is performed at the opposing portion of the skirt portion 21 so that the metal side of the base 2 is cut into the base fitting insertion portion 11 made of synthetic resin, so that both are securely engaged to improve the fixing strength. did it.

The large- and small-diameter cylindrical portions 11 and 12 to which the base 2 of the cover 1 is attached are straight without thread grooves, so that the molding is easy. Also, by providing the slits 13, 13, for example, even if there is a variation in the inner diameter of the base 2, the slit 13 absorbs the gap and one of the external lead wires 4.
Since the second lead 2 is guided to the slit 13 and led to the outside, there is no short circuit between the two external lead wires 42 and 43.

Further, when the fluorescent lamp device L with the globe 5 is turned on, the radiated light from the fluorescent lamp 4 is diffused by passing through the globe 5 to provide a soft atmosphere illumination.

FIGS. 4 to 8 show a main part of another embodiment of the bulb-type fluorescent lamp device of the present invention, and the same parts as those in the embodiments of FIGS. 1 to 3 are denoted by the same reference numerals. The description is omitted here.

FIG. 4 shows a state in which one or several through holes or recesses 15 are provided in the cylindrical portion 12 of the cover 1, the base 2 is covered on the cylindrical portion 12, and the skirt portion 21 at the tip of the base 2 is formed by the base. Upon reaching the fitting portion 11 and fitting, the cut and raised piece 25 formed by cutting and raising the wall surface of the two bases facing the through hole or the recess 15 is folded back into the through hole or the recess 15. Alternatively, the base 2 may be locked and fixed. In this case, it is preferable to form the cut-and-raised piece 25 on the valley groove side of the base 2 threaded portion, since no protrusion is formed on the surface side of the base 2.

As shown in FIG. 4, a recess 14 is formed in the base fitting insertion portion 11 in advance, and a recess (not shown) is formed in the skirt portion 21 in a portion facing the recess 14 in advance. In this case, both may be fixed and fixed later by means such as pressing.

FIG. 5 shows the cylindrical portion 12 of the cover 1.
A convex portion 16 having substantially the same shape as the screw groove of the base 2 is formed on the upper side of the base 2, and the base 2 is covered with the base 2 and pressed by pressing the base 2 from above, and the skirt portion 21 at the tip of the base 2 is fitted with the base. When the thread reaches the insertion part 11 and is fitted, the thread groove at the innermost part of the mouthpiece 2 matches the projection 16, so that the mouthpiece 2 can be attached. Further, fixing may be performed by punching, and fixing strength can be improved by adding punching.

FIG. 6 shows the cylindrical portion 12 of the cover 1.
Are provided at a plurality of positions of the base fitting insertion portion 11, for example, at four positions separated by 90 degrees, while the base 2 is opposed to the protruding portions 16, 16,. At four places of the skirt portion 21, cutouts 26, 26,... Having a width smaller than the width of the protruding portions 16, 16,.
Then, by pressing both, the protrusions 16, 1
, And notches 26, 26,... Are fitted to each other to be fixed.

FIG. 7 shows a flange (flange) 27 provided at the tip of the skirt 21 of the base 2, and the flange 2 of the base 2 fitted to the cylindrical portion 12 of the cover 1. An annular ring 17 made of a material substantially the same as the material forming the cover 1 is placed on the portion 27, and the ring 17 is melted to form a flange (flange) 27.
And fixed between them.

Further, the ones shown in FIGS. 1 to 7 described above have the base 2 fixed to the cover part 1, but the present invention is not limited to such an embodiment and is shown in FIG. Is also good. In FIG. 8, a fluorescent lamp (not shown), a lighting circuit component 61 and a cover 1 are supported by a chassis 7 composed of a support column 71 and a support plate 72 made of synthetic resin. 2 are installed.

That is, the fluorescent lamp 4 and the lighting circuit component 61 are supported below the substantially mountain-shaped chassis 7, and the through hole at the center of the cover 1 is inserted into the base fitting insertion portion 11 of the upper cylindrical portion 12. The flange 18 at the periphery of the through hole is similarly supported, and the base 2 is fixed to the base fitting insertion portion 11 of the cylindrical portion 12 in the same configuration as described above.

Then, a base fitting portion 11 having substantially the same diameter as the inner diameter of the base skirt portion 21 and a cylinder having substantially the same diameter as the inner diameter of the base shell 22 are provided on the cover 1 or the chassis 7 as shown in FIGS. In the case of the structure provided with the respective shape portions 12, if the skirt portion 21 of the mouthpiece 2 is fitted into the mouthpiece insertion portion 11, and the portion including the mouthpiece insertion portion 11 is fixed by punching or the like. The same operational effects as those described with reference to FIGS.

The locking between the base fitting insertion portion 11 and the base 2 is not limited to being pressed in by punching after both are superimposed, and the recess 14 is provided in advance in the base fitting insertion portion 11 as shown in FIG. Alternatively, the base 2 may be provided with a protrusion protruding inward, and the two may be press-fitted and locked.

Further, as shown in FIG. 4, an uneven surface 19 may be formed on the outer surface of the base fitting insertion portion 11 by knurling or the like, and the base 2 may be fitted with the skirt portion 21. The uneven surface 19 can prevent slippage because the fitting portion between the two is not a smooth surface, can lock a predetermined position without slipping particularly at the time of punching work, etc., and even when the punching is shallow, the inside of the skirt portion 21 side can be prevented. Recess 24 extruded toward
Since the portion is engaged with the uneven surface 19, the joining strength can be improved.

The above-described fluorescent lamp device L can be immediately turned on while being attached to a socket of a lighting device or the like.

The fluorescent lamp device L can be used in accordance with an appropriate lighting fixture, purpose of use and desired light emission characteristics.

The present invention is not limited to the embodiment described above. For example, the configuration of the chassis supporting the lamp and the circuit components, the fixing plate, the base fitting insertion portion or the cover portion may be variously modified according to the shape of the lamp and the components to be incorporated. Further, in a lamp device having a high temperature rise, a ventilation hole for heat radiation may be formed in a cover portion, a fixing plate, or the like.

Also, the bulb of the fluorescent lamp is not limited to the embodiment, but may be a bent portion formed by one glass tube, a bent portion formed by a plurality of glass tubes, or a plurality of straight tube bulbs. And a discharge path may be formed via a connecting pipe. In addition, a simple U
A valve having a U-shape, a substantially W-shape, or a substantially U-shape may be arranged circumferentially.

Further, the lighting circuit device of the lamp is not limited to the high-frequency lighting method, but may be lighted by another method. Furthermore, the lighting circuit components constituting the lighting circuit device may be provided on the fixing plate without using a wiring board.

[0052]

According to the first and second aspects of the present invention, the fixing of the base is performed by fitting the base into the base fitting portion formed to have substantially the same diameter as the inner diameter of the skirt. Since the base is not bent and fixed with respect to the axis, uniform light distribution characteristics can be obtained around the lamp axis.
In addition, since the engagement is achieved by punching or the like at a position facing the skirt portion of the base, a fluorescent lamp device that is securely and firmly connected can be provided.

Further, the molding of the cover or chassis made of a synthetic resin or the like is facilitated, and the productivity can be improved.

According to the third aspect of the present invention, by providing a plurality of locking portions, a good balance can be obtained, and a sufficient connection can be maintained even when a rotational force is applied when the socket is attached or detached.

According to the fourth aspect of the present invention, the same degree of fixing strength can be obtained not only by forming protrusions such as punching but also by locking with cut and raised pieces.

According to the fifth aspect of the present invention, it is possible to prevent a short circuit between the lead wires. According to the sixth aspect of the present invention, an existing fluorescent lamp having a bulb having a bent portion can be used.

According to the seventh aspect of the present invention, a fluorescent lamp device having a predetermined light distribution characteristic can be obtained by selecting a light control member.

According to the eighth aspect of the present invention, since the fluorescent lamp device according to any one of the first to seventh aspects is mounted, the first to seventh aspects are provided. It is possible to provide a lighting fixture having the same effect as described above.

[Brief description of the drawings]

FIG. 1 is a front view showing a bulb-type fluorescent lamp device according to an embodiment of the present invention.

FIG. 2 is an enlarged front view showing a main part of a process of covering a cover with a base in the lamp device of FIG. 1;

FIG. 3 is a partial cross-sectional front view showing, in an enlarged manner, a main part of the lamp device of FIG. 1 after the base cap is covered.

FIG. 4 is an enlarged partial cross-sectional front view showing a main part of a bulb-type fluorescent lamp device according to another embodiment of the present invention.

FIG. 5 is an enlarged partial cross-sectional front view showing a main part of a compact fluorescent lamp device according to another embodiment of the present invention.

FIG. 6 is a partial cross-sectional front view showing, in an enlarged manner, a main part in a process of covering a base with a cover in a light bulb shaped fluorescent lamp device according to another embodiment of the present invention.

FIG. 7 is a partial cross-sectional front view showing, in an enlarged manner, a main part of a bulb-type fluorescent lamp device according to another embodiment of the present invention in a state where a base is covered with a cover.

FIG. 8 is a partially sectional front view showing, in an enlarged manner, a main part of a process of covering a cover with a base in a light bulb-shaped fluorescent lamp device according to another embodiment of the present invention.

[Explanation of symbols]

 L: Bulb-type fluorescent lamp device 1: Cover part 11: Base fitting insertion part 12: Cylindrical part 14: Depressed part 2: Base 21: Skirt part 22: Shell 24: Concave 4: Fluorescent lamp 41: Glass tube bulb 5 : Globe 6: Lighting circuit 61: Lighting circuit parts 6: Light control body (glove) 7: Chassis

Claims (8)

[Claims] 1. A fluorescent lamp having a pair of electrodes configured to form a bent discharge path; a lighting circuit electrically connected to the fluorescent lamp; and a slit formed at one end side along an axial direction. A cover portion having a cylindrical portion having a large-diameter base fitting insertion portion on the base end side and a housing portion supporting the fluorescent lamp and housing a lighting circuit on the other end side;
A cap fitted with a skirt at the tip of the shell in a cap fitting insertion portion of the cover, and a skirt or shell partially recessed inward and locked to a cylindrical portion; A fluorescent lamp device. 2. A fluorescent lamp having a pair of electrodes configured to form a bent discharge path; a lighting circuit electrically connected to the fluorescent lamp; and a slit formed at one end along an axial direction. A cylindrical portion having a large-diameter base fitting insertion portion on the base end side, and a chassis supporting the fluorescent lamp and the lighting circuit on the other end side; and being locked to the chassis so as to cover a part of the fluorescent lamp and the lighting circuit. And a base fitting the skirt part at the tip of the shell into the base fitting insertion part of the chassis and partially recessing the skirt part or shell inward to lock the cylindrical part. A fluorescent lamp device, comprising: 3. The fluorescent lamp device according to claim 1, wherein the base insertion portion and the base are recessed and locked inward at a plurality of locations on the circumference. 4. The fluorescent lamp device according to claim 1, wherein a cut-and-raised piece of a base is locked in a recess formed in the cylindrical portion. 5. The fluorescent lamp device according to claim 1, wherein an external lead wire of the lamp is led out from a slit formed in the cylindrical portion and connected to a skirt portion of a base. . 6. The bulb of a fluorescent lamp has a bent portion in which a discharge path is formed by connecting one or more bent glass tubes or a plurality of straight tube glass tubes. The fluorescent lamp device according to any one of claims 1 to 5, wherein: 7. The fluorescent lamp device according to claim 1, wherein a light control body covering the fluorescent lamp is provided on the cover. 8. An apparatus main body; a socket provided in the apparatus main body; and the fluorescent lamp device according to any one of claims 1 to 7 mounted on the socket. Lighting equipment.