KR200227965Y1 - Light bulb using Cathode Cold Fluorescent Lamp - Google Patents

Abstract

It is electrically insulated to form a hot electrode and a cold electrode, a connector having one end opened, a sealed housing coupled to one end of the connector, and fixedly fixed to the housing at the connector side of the housing and electrically connected to the hot electrode and the cold electrode. Disclosed is a light bulb to which a cold cathode fluorescent lamp comprising an inverter connected and a cold cathode fluorescent lamp having a coil shape in which a lead extending from both electrodes is electrically connected to the inverter.

Description

Light bulb using Cathode Cold Fluorescent Lamp

The present invention relates to a light bulb to which a cold cathode fluorescent lamp is applied, and more particularly, to a light bulb in which an inverter and a cold cathode fluorescent lamp are accommodated to realize low power consumption and long life.

Conventional incandescent light bulb is composed of a mechanism in which the filament is housed in a bulb made of glass and the filament generates heat by applying power.

Such an incandescent bulb is required to form a bulb inside the vacuum pressure at the time of manufacture, there is a difficulty in the manufacturing process.

In addition, there is an inconvenience that often need to be replaced as often as about 1,000 hours, there is a problem that the power consumption is crucial.

Moreover, since the bulb is made of glass, there is a drawback that it is easily broken by external impact.

Nevertheless, the reason why the incandescent bulb is used in various ways is that it can be installed in a narrow space compared to the fluorescent lamp, can be modified in various forms, can realize various colors, and the price is low.

Accordingly, an object of the present invention is to provide a light bulb with a long life and low power consumption.

Another object of the present invention is to provide a light bulb that is not easily broken even by an external impact and is easy to manufacture.

Another object of the present invention is to provide a light bulb that can be installed in a narrow space, easy to change a variety of shapes or colors.

1 is a cross-sectional view showing a light bulb according to the present invention.

<Explanation of symbols for main parts of the drawings>

1 hot electrode 2 cold electrode

3: insulator 4, 4 ': wire

11: first housing 12: second housing

14 reflection film 15 through hole

16 inverter 17 electronic device

18: flexible cable 20: cold cathode fluorescent lamp

22: lead

According to the present invention, a hot electrode and a cold electrode are electrically insulated to form a connector having one end open, a sealed housing coupled to one end of the connector, and fixed to the housing at a connector side of the housing, Disclosed is a light bulb to which a cold cathode fluorescent lamp including an inverter electrically connected to a cold electrode and a coil-shaped cold cathode fluorescent lamp electrically connected to a lead extending from both electrodes to the inverter.

Preferably, the housing is formed by detachably combining the first housing for accommodating the inverter and the second housing for accommodating the cold cathode fluorescent lamp, the first housing being an opaque heat resistant material, and the second housing being transparent or translucent. It is made of material.

Furthermore, a reflective film is provided which partitions between the inverter and the cold cathode fluorescent lamp and has a through hole through which leads extending from both electrodes of the cold cathode fluorescent lamp are formed.

In addition, the inverter is made of a form in which the electronic device is mounted on the printed circuit board, the printed circuit board is a pair of printed circuit board is electrically connected by a flexible cable.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Referring to FIG. 1, the light bulb of the present invention is largely composed of a connector, a housing, and a light emitter.

The connector 30 is a socket 5 and a socket having a screw formed on an outer circumferential surface thereof and opening at one end thereof.

It consists of the insulator 3 formed in the other end part of (5). In this embodiment, the shape of the connector 30 is formed in the same manner as the existing incandescent lamp, but may be modified in other forms. For example, it is also possible to form the shape of a fluorescent lamp choke lamp whose both electrode terminals protrude on the end surface.

The hot electrode 1 is installed in the insulator 3 of the connector 30, and the socket 5 itself may be used as the cold electrode 2. The insulator 3 serves to electrically insulate the hot electrode 1 from the socket 5. In addition, the wires 4 and 4 'are electrically connected to the hot electrode 1 and the cold electrode 2, respectively.

The housing 10 is coupled to one end of the socket 5, and the housing 10 has a sealed shape to form a space isolated from the outside. The material of the housing 10 may be a resin, acrylic or the like, preferably a heat resistant material is used.

An inverter and a cold cathode fluorescent lamp 20 are installed inside the housing 10. An inverter is installed at a connector side, and a cold cathode fluorescent lamp 20 is installed at an opposite side.

The inverter has a form in which the electronic elements 17 are mounted on the printed circuit board 16. Preferably, a pair of printed circuit boards is used to save the installation space.

It can be installed in the shape bent by connecting by 18. In this way, the light bulb can be made compact by reducing the space to be installed.

The inverter may be fixed to the housing 10 using a bracket or the like, or may be fixed by forming an accommodation groove (not shown) on the inner surface of the housing 10 itself. The other end of the outer wires 4 and 4 ', one end of which is connected to the hot electrode 1 and the cold electrode 2, is connected to the inverter.

In another embodiment of the present invention, the housing 10 is made by combining the first housing 12 for receiving the inverter and the second housing 11 for receiving the cold cathode fluorescent lamp 20, preferably the first The housing 12 is an opaque heat resistant material, and the second housing 11 is made of a transparent or translucent material. In addition, when the cold cathode fluorescent lamp 20 is replaced by detachably coupling the first housing 12 and the second housing 11, only the second housing 11 may be disassembled.

Therefore, when viewed from the outside, only the cold cathode fluorescent lamp 20 can be seen without the inverter being visible, so that the appearance of appearance can be enhanced.

In addition, the cold cathode fluorescent lamp 20 is wound in a coil shape so that leads 22 extending from both electrodes are electrically connected to the inverter. The lead 22 may be detachably coupled to the printed circuit board 16, thereby facilitating replacement of the cold cathode fluorescent lamp 20.

Preferably, a reflective film 14 having a through hole 15 is provided between the inverter and the cold cathode fluorescent lamp 20 to reflect light emitted from the cold cathode fluorescent lamp 20. Official

A lead connected to both electrodes of the cold cathode fluorescent lamp 20 is penetrated through 15.

According to the light bulb of the present invention configured as described above, the light emitted from the cold cathode lamp 20 is emitted to the outside through the second housing 11, the light emitted to the rear is a reflective film

Reflected by 14, it is emitted forward.

According to the present invention of the configuration as described above has a number of advantages.

First, since the cold cathode fluorescent lamp is used as the light emitter, the life is long. Compared to the conventional incandescent bulb for about 1,000 hours, the bulb of the present invention can use 40,000 to 80,000 hours. Moreover, there is an advantage that power consumption is very small despite such long life. Furthermore, there is an advantage that the luminous intensity is more than four times larger than incandescent bulbs.

In addition, there is an advantage that the material of the housing is not easily damaged by external impact, such as resin or acrylic.

In addition, since there is no need to form a vacuum inside the housing, it is easy to manufacture, and there is an advantage that the manufacturing cost is low.

In addition, by processing the cold cathode fluorescent lamp in the shape of a coil, the light emitting area can be increased, and the printed circuit board can be superimposed so that a compact structure can be provided and can be installed in a narrow space.

It is also possible to change to a variety of forms, the color can be variously modified according to the type of gas to be sealed in the cold cathode fluorescent lamp has the advantage that can be widely used as decorative lighting.

Claims (4)

A connector having electrical insulation and hot electrodes and cold electrodes formed at one end thereof; A sealed housing coupled to one end of the connector; An inverter fixed to the housing at the connector side of the housing and electrically connected to the hot electrode and the cold electrode; And a coil-shaped cold cathode fluorescent lamp electrically connected to a lead extending from the positive electrode to the inverter. The method of claim 1, wherein the housing is formed by detachably combining the first housing for accommodating the inverter and the second housing for accommodating the cold cathode fluorescent lamp, wherein the first housing is an opaque heat resistant material. The second housing is a bulb with a cold cathode fluorescent lamp, characterized in that made of a transparent or translucent material. 2. The cold cathode fluorescent lamp of claim 1, wherein a reflection film is formed between the inverter and the cold cathode fluorescent lamp and has a through hole through which leads extending from both electrodes of the cold cathode fluorescent lamp are formed. Applied bulb. The cold cathode of claim 1, wherein the inverter has a form in which electronic elements are mounted on a printed circuit board, and the printed circuit board has a pair of printed circuit boards electrically connected by a flexible cable. Bulb with fluorescent lamp.