JPS6228524B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a fluorescent lamp device that can be used in place of an incandescent light bulb and can save power.

(Prior Art) This type of fluorescent lamp device is constructed by housing a bent fluorescent lamp, a ballast, and a lighting tube as a starter in an envelope composed of a base and a globe. The envelope is configured such that it can be attached to a socket for an incandescent light bulb by attaching a screw-in base to the envelope.

By the way, as a mounting structure for the base, a cylindrical part is formed at one end of the chassis that is housed in the envelope and supports the bent fluorescent lamp, the ballast, and the lighting tube, and the cylindrical part is Means such as screwing the cap onto the outer circumferential surface or fixing the cap to the cap using an adhesive are employed.

By the way, one of the lead wire led from the ballast and the other lead wire led from the bent fluorescent lamp is connected to the cap, and the other is connected to the eyelet terminal of the cap. Connected. The lead wire connected to the cap is soldered to the opening edge of the cap.

Conventionally, both of the above two lead wires are passed through the cylindrical part and led to the open end of the cylindrical part, and one lead wire is welded to the eyelet terminal of the base that is covered with the cylindrical part. At the same time, the other lead wire was led from the open end of the cylindrical part to the opening edge of the cap along the outer peripheral surface of the cylindrical part, and was soldered at the opening edge.

(Problems to be Solved by the Invention) However, when a pair of lead wires is inserted into the inside of the cylindrical portion, it is necessary that these lead wires come into contact with each other. Furthermore, if a lead wire is attached to the outer circumferential surface of the cylindrical portion, when the cap is screwed into the cylindrical portion, the lead wire will easily move along the circumferential surface of the cylindrical portion together with the cap, and therefore the lead wire There are problems such as the soldering position relative to the opening edge is not fixed at a fixed place, which reduces work efficiency. Moreover, in the conventional case, the lead wires are routed around the opening edge of the cylindrical part, so there is a risk that the wiring distance of the lead wires becomes long, and the wiring in the narrow space inside the base becomes more complicated. Of course, there are disadvantages such as requiring a large amount of conductor material.

The present invention was made based on the above circumstances, and its purpose is to accurately position the insertion position of the lead wire in the cylindrical part, improve work efficiency, and improve the position of the lead wire. The present invention aims to provide a fluorescent lamp device that requires only a short wiring distance.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, an introduction groove along the axial direction is formed on the outer surface of the cylindrical portion on which the cap is fitted, and the introduction groove is provided with the introduction groove for the cap. One of the lead wires to be connected is inserted through the cylindrical portion, and the other lead wire to be connected to the eyelet terminal of the cap is inserted through the inside of the cylindrical portion.

(Function) According to the present invention, one of the pair of lead wires connected to the base is wired outside the cylindrical portion and the other wired inside the cylindrical portion, so that both lead wires are mutually connected. Moreover, one lead wire wired outside the cylindrical part is inserted into an introduction groove formed along the axial direction on the outer peripheral surface of this cylindrical part, so that the lead wire is short. With this,
The insertion position of the lead wire is accurately regulated, and the lead wire does not rotate or move as the cap is rotated by screwing, so that soldering with the cap can be ensured.

(Example) The present invention will be described below based on an example shown in the drawings.

In the figure, 1 is a chassis, which is molded from a heat-resistant synthetic resin material. This chassis 1 has a hollow cylindrical part 2 at one end, and a male threaded part 3 for attaching a base is provided on the outer circumferential surface of the distal end of the cylindrical part 2. Further, mounting grooves 4, 4 are formed along the axial direction at two opposing locations on the outer peripheral surface of the cylindrical portion 2, and one end of these mounting grooves 4, 4 is connected to the cylindrical portion 2.
It has an opening at the tip opening edge. Furthermore, an introduction groove 5 is formed on the outer circumferential surface of the cylindrical portion 2 and extends along the axial direction at a side opposite to both ends of a bent fluorescent lamp 21, which will be described later. As a preferable example, the cross section has a substantially V-shape. A base 6 is attached to such a cylindrical portion 2.
The base 6 has a substantially bowl-like shape, and has fitting protrusions 7, 7 protruding from two mutually opposing positions on one end edge of the base 6, which are removably fitted into the mounting grooves 4, 4 through an opening at one end. It has been set up. Therefore, in order to attach the base 6 to the cylindrical part 2, the fitting protrusions 7, 7 are fitted into the mounting grooves 4, 4, and the male screw part 3 is fitted with a base 8, such as an E26 type for incandescent light bulbs. Screw on this cap 8
The opening edge of the base 6 is brought into contact with the opening edge of one end of the base 6, and the fitting protrusions 7, 7 are pressed against the terminal ends of the mounting grooves 4, 4, thereby being fixed. A plurality of louvers 9 are formed on the circumferential surface of the base 6 to communicate the inside and outside of the base 6. Further, the opening edge of the other end of the base 6 is covered with a substantially spherical globe 11 having an opening 10 in a part of the circumferential surface. This glove 11 is preferably made of polycarbonate resin, and is colored light-diffusing white by mixing a light-diffusing material into the resin. and glove 11
Locking claws 12 are provided at multiple locations on the opening edge of the base 6, and by locking these claws 12 to locking protrusions 13 provided at multiple locations on the other end opening edge of the base 6, The glove 11 is detachably fixed to the base 6.

On the other hand, two portions of the proximal edge of the cylindrical portion 2 facing each other
At this location, arm portions 14, 14 are provided which protrude in an inclined manner so as to expand as they advance toward the glove 11, and a mounting body 15 is integrally molded between the tip portions of these arm portions 14, 14. It has been done. This mounting body 15 has a substantially rectangular shape, and its arm portion 14,
A through hole 16 is formed in the center between the holes 14. And on the glove side surface of the mounting body 15,
Approximately U-shaped fitting walls 17, 17 are protruded so as to be spaced apart from each other and face each other with the through hole 16 in between.
A stabilizer 18 is fitted between these fitting wall portions 17 and 17, and this stabilizer 18 is fitted between the fitting wall portions 17 and 17.
17, and is fixed to these fitting wall portions 17, 17 with adhesive as necessary. In addition,
The ballast 18 is fixed with the side from which the power supply lines 19a and 19b are led facing toward the base 6. Furthermore, ribs 20 are provided on the opposing surfaces of the arm portions 14, 14, respectively.
20 are provided protrudingly, and these ribs 20, 20 are
One end of the stabilizer 18 comes into contact with the base side surface of the stabilizer 18 to position it, and the arm part 1
It also serves as reinforcement for 4 and 14.

A curved tube-shaped fluorescent lamp 21 is mounted on the mounting body 15 so as to surround the ballast 18. The bulb 22 of this curved fluorescent lamp 21 is curved as follows. That is, in the bulb 22, a straight glass bulb is bent into a substantially U-shape at the center to form a curved portion 23, and both ends thereof are bent in a direction substantially perpendicular to a plane including the U-shape. It is curved into a roughly U-shape, and the entire body is shaped roughly into a saddle shape. Such a bent tube-shaped valve 22 has both ends thereof and the bent portion 23 facing the mounting body 15, and in this embodiment, both ends and the bent portion 23 are opposed to the mounting body 15.
3 are supported by mounting bodies 15, respectively. To explain this support structure, the mounting body 15 has a locking arm 24 that supports the curved portion 23 and supports both end portions, spaced apart in a direction perpendicular to the opposing direction of the fitting walls 17, 17. A support piece portion 25 is provided integrally. The locking arm 24 is integrally provided with an extension plate 26 extending from one peripheral edge of the through hole 16 toward the cylindrical portion 2 side, and has a substantially L-shape. Further, the support piece portion 25 extends in a flange shape with a step on the cylindrical portion 2 side from the glove side surface of the attachment body 15. Extending tongue pieces 27 and 2 extending in an arc shape on the same plane are provided at both ends of the support piece part 25, respectively.
7 are provided, and both ends of the bulb 22 are brought into contact with these extending tongues 27, 27, and fixed with an adhesive if necessary. On the surface of the support piece 25 on the side of the cylindrical part 2, there are guide projections 2 located near the extending tongue pieces 27, 27.
8 and 28 are provided protrudingly. These guide projections 28,
Guide grooves 29, 29 are cut in 28 along the axial direction, and these guide grooves 29, 29 open on the circumferential surfaces of the guide protrusions 28, 28. These guide grooves 29, 29 are provided so as to be oriented toward the axis of the cylindrical part 2, and the guide groove 29 of one of the guide protrusions 28 is substantially opposed to the introduction groove 5 of the cylindrical part 2. are doing. Further, a mounting hole 30 is provided in the support piece 25 so as to be located between both ends of the bulb 22. A lighting tube 31 as a starter is fitted into the mounting hole 30, and the lighting tube 31 is installed so that the ends from which the conductive wires 32a and 32b are led out face the berth 6 side. . The conductive wires 32a and 32b of this lighting tube 31 are connected in parallel to a capacitor 33, and the bulb 22
It is connected to one external conducting wire 35a, 36a led out from the electrode filaments 34, 34 at both ends of the electrode filament 34, 34. The other external conductive wires 35b, 36b of the electrode filaments 34, 34 are connected to the opening edge of the base 8 and one power supply line 19a of the ballast 18 via the guide grooves 29, 29, respectively. That is, the external conducting wire 35b is inserted into the guide groove 29, then introduced into the introduction groove 5, guided to the opening edge of the base 8, and soldered to the opening edge. The other power supply line 19b of the ballast 18 is passed through the cylindrical portion 2 and soldered to the eyelet terminal of the base 8.

Furthermore, the external conductor 35b soldered to the opening edge of the cap 8 and the power supply line 19b soldered to the eyelet terminal of the cap 8 are wired separately into the outside and inside of the cylindrical portion 2. , these two lines 35b and 19b never come into contact with each other.

A phosphor coating is applied to the inner surface of the curved tube-shaped bulb 22, and a predetermined amount of mercury and an incurable gas are sealed inside.

According to such a configuration, the external conducting wire 35b soldered to the opening edge of the cap 8 is guided to the opening edge of the cap 8 via the introduction groove 5 of the cylindrical portion 2. When the cap 8 is screwed onto the cylindrical portion 2, the external conductive wire 35b does not move together with the cap 8, and the soldering position of the cap 8 relative to the opening edge is fixed. Particularly in this embodiment, since the introduction groove 5 is formed to have a V-shaped cross section, the external conductive wire 35b is difficult to move within the introduction groove 5, and the insertion position can be determined with high precision. Therefore, soldering can be performed reliably and easily, improving work efficiency.

Moreover, since the introduction groove 5 faces the guide groove 29 of the guide protrusion 28 into which the external conductor 35b is inserted immediately after being led out from the valve end, the external conductor 35b enters the insertion groove 5 in a substantially straight line. You will be guided. Therefore, the wiring distance of the external conducting wire 35b can be shortened, which not only prevents the wiring from becoming complicated, but also reduces the amount of conducting wire material and reduces costs.

Note that the present invention is not limited to the above embodiments. For example, the mounting structure of the cap is not limited to the screw type shown in the embodiment, but may be fixed to the cylindrical portion with an adhesive. In this case, it is needless to say that there is no need to provide a male threaded portion in the cylindrical portion, and the installation can be completed by simply inserting the cap coated with adhesive.

"Effects of the Invention" As described above, according to the present invention, an introduction groove for introducing one of the lead wires connected to the base is formed on the outer peripheral surface of the cylindrical part, and the lead wire is inserted into the introduction groove. Therefore, when the cap is attached to the cylindrical portion, the lead wire does not come into contact with the cap and escape from the circumferential surface of the cylindrical portion, and the soldering position of the lead wire relative to the opening edge of the cap is fixed. Therefore, soldering can be performed reliably and easily, improving work efficiency.
Further, the lead wire inserted through the introduction groove requires only a short wiring distance, and it is possible to prevent the wiring from becoming complicated. Furthermore, since the other lead wire is inserted through the inside of the cylindrical portion, there is no risk of the two lead wires coming into contact with each other, and other excellent effects are achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view, FIG. 2 is a sectional view taken along the line - in FIG. 1, FIG. 3 is a sectional view seen from the base side, and FIG. FIG. 5 is a perspective view and a lighting circuit diagram. DESCRIPTION OF SYMBOLS 1... Chassis, 2... Cylindrical part, 5... Introductory groove, 6... Base, 8... Cap, 11... Globe, 15... Valve support part (mounting body), 17...
Fixing part (fitting wall part), 18... Stabilizer, 19b...
...Power line (lead wire), 22...Valve, 30...
...Holding part (mounting hole), 31...Lighting tube, 34...
Electrode filament, 35b...Lead wire (external conductor).

Claims (1)

[Scope of Claims] 1. The base and the globe constitute an envelope, a lighting tube, a ballast, and a bent fluorescent lamp are housed in the envelope, and a cylindrical part is provided in the envelope. In a fluorescent lamp device in which a cap is attached to a cylindrical part with a protruding part, an introduction groove is formed along the axial direction on the outer peripheral surface of the cylindrical part, and a cap is connected to the cap. A fluorescent lamp device characterized in that a lead wire is inserted through the tube, and the other lead wire connected to the eyelet terminal of the cap is inserted through the inside of the cylindrical portion. 2. The fluorescent lamp according to claim 1, wherein the introduction groove is formed on the outer circumferential surface of the cylindrical portion at a position that closely opposes at least one end of the bent fluorescent lamp. lamp device. 3. The above-mentioned bent fluorescent lamp is made by bending a tube-shaped bulb into a substantially U-shape at its center, and bending both ends thereof into a substantially U-shape in a direction substantially perpendicular to a plane containing the above-mentioned U-shape. 3. The fluorescent lamp device according to claim 1, wherein the fluorescent lamp device is housed in an envelope with both ends facing toward the base. 4. The cylindrical portion is integrally formed with a chassis that supports the ballast, lighting tube, and bent fluorescent lamp. Fluorescent lamp device as described in Section 1.