JP2004259689A - Electrodeless fluorescent discharge lamp using clamp type power supply transformer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a electrodeless fluorescent lamp using a clamp type power supply transformer in which a manufacturing process to engage and arrange the power supply transformer in the electrodeless fluorescent discharge lamp main body is extremely simple, and in which both of the electrodeless fluorescent discharge lamp main body and the power supply transformer can be packed up separately, transported, and assembled at installation place. <P>SOLUTION: This lamp is constituted of the discharge lamp main body in which the inner wall of a glass tube formed in ring-shape is coated by a fluorescent coating, and in which mercury vapor is enclosed in the glass tube, and the clamp type power supply transformer in which the ring-shaped iron core is divided into two, a power supply coil is wound at least on one of them, one end of the ring-shaped iron cores divided into two is rotatably joined mutually, and a removable fixing means is installed at the other end, and the ring-shaped iron core which is obtained by dividing the clamp type power supply transformer is fitted removably by surrounding one part of the discharge lamp main body and the iron core is made to be coupled in ring-shape. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electrodeless fluorescent discharge lamp using a clamp-type power supply transformer in which a high-frequency current is supplied to an electrodeless fluorescent discharge lamp by a detachable clamp-type power supply transformer.
[0002]
[Prior art]
[Patent Document 1] JP-A-11-191398
Conventionally, an electrodeless fluorescent discharge lamp as shown in the above-mentioned literature is known. The principle is briefly explained. Two annular cores each having a coil for power supply wound around the outer periphery of a glass tube formed into an annular shape and filled with mercury vapor, and a high-frequency current is supplied to this coil. A high-frequency current is generated inside the glass tube by electromagnetic induction via a ring-shaped iron core to cause the phosphor inside the glass tube to emit light. However, this type has the advantage that the glass tube, which is the discharge lamp body, has almost no failure because there is no discharge electrode, but it is necessary to fit the annular core of the power supply transformer outside the glass tube. Therefore, the manufacturing and assembling process becomes complicated, and the heavy annular core of the power supply coil is attached to the outer periphery of the glass tube, which is easily broken, so that careful attention must be paid to the packaging to prevent damage during transportation. There were drawbacks.
[0003]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to improve the disadvantages of the above-described conventional apparatus, and the manufacturing and assembling process for fitting a power supply transformer to the electrodeless fluorescent discharge lamp main body is extremely simple. An object of the present invention is to provide an electrodeless fluorescent discharge lamp using a clamp-type power supply transformer, which can separately package and transport a transformer and assemble both at an installation site.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned object, an electrodeless fluorescent discharge lamp using a clamp-type power supply transformer according to the present invention has a structure in which a fluorescent paint is applied to the inner wall of an annularly formed glass tube and mercury vapor is sealed in the glass tube. Clamp type power supply in which a discharge lamp body and an annular core are divided into two parts, a power supply coil is wound around at least one of them, and one end of the divided annular core is rotatably connected to each other and provided with detachable fixing means at multiple ends. A transformer is provided, and a divided annular core of the clamp type power supply transformer is detachably attached around a part of the discharge lamp main body so that the iron core is annularly connected.
[0005]
[Action]
The discharge lamp body and the clamp-type power supply transformer are packed and transported separately. When the clamp-type power supply transformer is mounted on the discharge lamp body at the installation location, the two-part annular core is opened and the outer periphery of the fluorescent discharge lamp body is opened. Clamp and mount so as to sandwich it from both sides. When replacing the discharge lamp with a different shape, color, or the like, the clamp-type power supply transformer is removed from the discharge lamp body, and the previously used clamp-type power supply transformer is attached to a newly used discharge lamp body.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of an electrodeless fluorescent discharge lamp using a clamp type power supply transformer according to the present invention will be described with reference to the drawings. 1 is an overall perspective view, FIG. 2 is a perspective view of a discharge lamp main body, and FIGS. 3 and 4 are a perspective view and a partially cut perspective view of a clamp-type power supply transformer, respectively. The electrodeless fluorescent discharge lamp 1 is composed of a discharge lamp main body 2 in which a glass cylinder is formed in an annular shape, and two sets of clamp type power supply transformers 3 mounted on the outer periphery thereof. The two sets of clamp-type power supply transformers 3 are respectively housed in a case 5 and can be mounted by clamping the case 5 on the outer periphery of the discharge lamp body 2.
[0007]
As shown in FIG. 2, the discharge lamp body 2 is formed by forming a glass tube having a uniform diameter into a substantially rectangular shape, and a fluorescent paint is applied to an inner wall thereof. Further, the inside thereof is under a high vacuum, and a mercury vapor and an appropriate amount of argon or other rare gas are sealed therein to form a conductive atmosphere.
[0008]
As shown in FIGS. 3 and 4, the two clamp-type power supply transformers 3 mounted at substantially symmetrical positions on the outer periphery of the discharge lamp body 2 divide the annular core into a base 3a and a rotating part 3b. The feeding coil 4 is wound around the base 3a. The base portion 3a and the rotating portion 3b of the annular core are respectively housed in a synthetic resin case 5 whose one end is rotatably connected by a hinge portion 5a, and is hooked on an open end of the case opposite to the hinge portion 5a. The projection 5b and the elastic locking ring 5c are formed integrally with each other.
[0009]
In order to mount the clamp type power supply transformer 3 to the discharge lamp main body 2, the case 5 of the two-piece iron core 3 is opened and mounted so as to be sandwiched between the discharge lamp main bodies 2, and the case 5 is moved from the state shown on the right side of FIG. (2) When closed and strongly pressed from above and below, the elastic locking ring 5c is locked by the locking projection 5b and clamped, so that the case 5 can be fixed with one touch. At this time, the divided cut surfaces of the divided iron cores 3a and 3b are tightly connected by the elasticity of the hook. In addition, if the point of the elastic latching ring 5c is raised outward with a flathead screwdriver or the like in a state where the case 5 is fixed, it can be easily removed from the latching projection 5b, so that the case 5 can be easily opened and removed. is there.
[0010]
The discharge lamp main body 2 and the clamp type power supply transformer 3 are separately packed, transported to the installation location, and assembled at the installation location. Of course, it can be transported in an assembled state for some reason.
[0011]
The assembled electrodeless fluorescent discharge lamp 1 is mounted on a lamp (not shown), and the power supply coils 4 of the two clamp type power supply transformers 3 are connected to a high frequency power supply such as an inverter. When the power switch is turned on, a high-frequency current of the same phase is supplied to both power supply coils 4 to generate magnetic flux in the annular core of the clamp-type power supply transformer 3, and a high-frequency current is induced in the mercury vapor inside the discharge lamp body 2 and applied to the inner wall. The emitted fluorescent paint emits light, and the electrodeless fluorescent discharge lamp 1 lights up brightly.
[0012]
If it is desired to replace the electrodeless fluorescent discharge lamp 1 with a different shape, color, etc., it is not necessary to replace the whole. Instead, remove the clamp type power supply transformer 3 from the discharge lamp body 2 and replace the clamp-type power supply transformer 3 with a newly used discharge lamp body 2 until now. It is only necessary to attach the clamp type power supply transformer 3 used.
[0013]
In the above-described embodiment, the shape of the discharge lamp body 2 is rectangular, but the shape is not limited to this, and may be any other suitable shape such as a circle, an ellipse, or a triangle depending on the purpose. Although two sets of the clamp type power supply transformers 3 are provided, only one set may be used in principle. The two sets are provided because each of the clamp-type power supply transformers 3 can be downsized by sharing the power supply current. In addition, as the means for clamping the split cores 3a and 3b, the locking ring 5c and the locking projection 5b provided integrally with the case 5 are used. However, the present invention is not limited to this. It goes without saying that it may be used as appropriate.
[0014]
【The invention's effect】
As described above, the electrodeless fluorescent discharge lamp using the clamp-type power supply transformer of the present invention can greatly simplify the manufacturing and assembling process by using the power-supply transformer as a clamp type. Can be separately packed and transported, and both can be assembled at the installation location.If you want to replace the electrodeless fluorescent discharge lamp with another one, you do not need to replace the whole. It can be removed from the main body and attached to a newly used discharge lamp body for repeated use, and has an excellent effect of being economical in all aspects such as packing, transportation, storage, and cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electrodeless fluorescent discharge lamp using a clamp type power supply transformer of the present invention. FIG. 2 is a perspective view of the discharge lamp body. FIG. 3 is an exploded perspective view of the clamp type power supply transformer. Partially cut-away perspective view of the clamp type power supply transformer.
REFERENCE SIGNS LIST 1 electrodeless fluorescent discharge lamp 2 discharge lamp main body 3 clamp-type power supply transformer 3 split core 3 a base 3 b rotating part 4 power supply coil 5 case 5 a hinge part 5 b hook protrusion 5 c elastic hook ring

Claims (1)

A discharge lamp body in which a fluorescent paint is applied to the inner wall of an annular glass tube and mercury vapor is sealed in the glass tube, and an annular core are divided into two parts, and a power supply coil is wound around at least one of them and divided into two parts. A clamp-type power supply transformer having one end of an annular core rotatably connected to each other and having detachable fixing means provided at multiple ends, wherein a divided annular core of the clamp-type power transformer is attached and detached around a part of the discharge lamp body. An electrodeless fluorescent discharge lamp using a clamp type power supply transformer, wherein a mounting core is connected in a ring shape as much as possible.

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