KR20010062904A - High voltage capacitor of fbt - Google Patents

Abstract

PURPOSE: A high tension capacitor of a fly back transformer is provided to easily configure a high tension capacitor without holding a separate high tension capacitor on a capacitor holder, maintain size of an FBT compact, easily manufacture and install the high tension capacitor and drastically reduce cost of the product. CONSTITUTION: A high tension coil is wound on a high tension bobbin(100) and forms a multi layer. An insulation film is wound between the winding coil layers on a bobbin body for insulation. A dielectric material deposited film(140) for high tension capacitor is wound and forms a multi layer on an upper side of the winding coil layer of the high tension coil which are wound on the bobbin body of the high tension bobbin(100). The dielectric deposited film(140) for the high tension capacitor is formed by forming an aluminum thin film(160) on a polyester insulation film(150). A ground terminal(170) and a high tension terminal are drawn on both sides of the dielectric material deposited film(140), so as to be connected to a terminal pin of the high tension bobbin(100).

Description

HIGH VOLTAGE CAPACITOR OF FBT} Flyback Transformer

The present invention relates to a high-voltage capacitor of the FBT to easily and easily configure a high-voltage capacitor (capacitor) of a flyback transformer (hereinafter referred to as "FBT") for supplying a high voltage to the CRT of a TV and a monitor on a high-voltage bobbin. In particular, the high-voltage coil is wound in a plurality of layers, and the dielectric deposition film for the high-pressure capacitor is wound on the body portion of the high-pressure bobbin in which the insulating film for insulation is installed between each winding coil layer, Since the ground and high voltage terminals are drawn to both sides and connected to the terminal pins, the dielectric deposition film is used on the main body of the high voltage bobbin without the need to separately manufacture and fix the high voltage capacitor installed in the FBT. The high voltage capacitor can be easily and easily configured, and accordingly, the size of the FBT is compact. It relates to one of the FBT high-voltage capacitors to be able to maintain.

In the structure of a high voltage capacitor generally installed inside a conventional FBT, as shown in FIG. 1, a capacitor holder having a high voltage capacitor 50 embedded therein on a focus unit 40 installed on one side of the FBT. 60 is installed, the high voltage capacitor 50 is built, and then molded by an insulating resin, wherein the high voltage capacitor installed in the FBT is wound in multiple layers as shown in FIG. 2. The capacitor leads 20 are respectively inserted into both sides of the inside of the 10, and one end thereof is installed to be drawn out of the film 10, and the film 10 to which the capacitor leads 20 are coupled is formed of an insulating resin 30. It is made of a configuration that allows the impregnation hardening integrally through.

The conventional FBT high voltage capacitor 50 having the structure as described above has both sides of the wound film 10 in a state in which the insulating film 10 is wound in a plurality of layers in order to secure a breakdown voltage characteristic and an insulating force. The capacitor leads 20 are respectively inserted and fused by instantaneous discharge, and the winding film 10 having one end of the capacitor leads 20 impregnated with an epoxy resin, which is an insulating resin 30, is allowed to cure. The capacitor 40 is manufactured.

The high voltage capacitor 50 manufactured as described above is embedded in the capacitor holder 60 provided in the FBT focus unit 40, and then molded to form the capacitor as an insulating resin for insulation.

However, the conventional high voltage capacitor 50 as described above, by impregnating and curing the winding film 10 in which one end of the separate capacitor lead 20 is inserted into the insulating resin 30 to produce the high voltage capacitor 50. By increasing the manufacturing cost of the capacitor, the process cost and the cost of the product are increased, as well as the size of the FBT is increased by embedding the manufactured high voltage capacitor 50 in a separate capacitor holder 60. In addition, the workability and productivity of the manufacturing process are greatly reduced, as well as the high-voltage capacitor 50 is installed inside the FBT, and then again in the filling operation of the insulating resin for insulation inside the FBT, impregnation of the insulating resin again This was done was there was an inefficient problem.

SUMMARY OF THE INVENTION The present invention has been made to solve various problems of the related art as described above. The object of the present invention is to deposit a dielectric material on a main body of a high pressure bobbin without having to separately manufacture a high voltage capacitor installed inside the FBT and fix it to a capacitor holder. By using a film, the high voltage capacitor can be easily and easily configured, and accordingly, the size of the FBT can be kept compact, and the filling and curing of the high voltage capacitor is integrated with the high voltage capacitor. It is to provide a high voltage capacitor of FBT that can easily manufacture and install a high voltage capacitor and can greatly reduce the cost of the product.

1 is a schematic configuration diagram of a high voltage capacitor installed in a focus unit on one side of a general FBT.

2 is a schematic perspective view of a high voltage capacitor embedded in a capacitor holder of a conventional focus unit.

Figure 3 is a perspective view of the coupling state of the high-voltage capacitor wound on the high-pressure bobbin body portion of the FBT in accordance with the present invention.

Figure 4 is a front cross-sectional view of a high voltage bobbin showing a laminated structure of the high voltage capacitor of the present invention.

Explanation of symbols on the main parts of the drawings

100 ... High Pressure Bobbin 111 ... High Pressure Coil

110 ... winding coil layer 120 ... bobbin body part

130 dielectric film 140 dielectric film

150 ... Polyester insulation film 160 ... Aluminum thin film

170 ... ground terminal 180 ... high voltage terminal

190 ... terminal pin 200 ... diode

The present invention as a technical configuration for achieving the above object, the bobbin body portion of the high-pressure bobbin winding the high-pressure coil in a plurality of layers;

An insulation film wound for insulation between the winding coil layers of the bobbin body part;

A dielectric deposition film for the high voltage capacitor wound around the high voltage coil wound around the bobbin body of the high pressure bobbin;

By providing a high-voltage capacitor of the FBT characterized in that it comprises a ground and a high voltage terminal which is drawn to both sides of the dielectric deposition film is connected to the terminal pin of the high-voltage bobbin to be connected.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a coupling state of the high voltage capacitor wound on the high-pressure bobbin body portion of the FBT according to the present invention, Figure 4 is a front cross-sectional structural view of the high-pressure bobbin showing the laminated structure of the high voltage capacitor of the present invention, the high voltage coil 111 is The bobbin body portion 120 of the high pressure bobbin 100 wound in a plurality of layers is wound between the winding coil layer 110 for insulation, and the bobbin body portion of the high pressure bobbin 100 is wound. The dielectric deposition film 140 for the high voltage capacitor is wound in a plurality of layers on the winding coil layer 110 of the high voltage coil 111 wound on the 120 to form a laminate.

The dielectric deposition film 140 for the high voltage capacitor is configured such that the aluminum thin film 160 is formed and wound on the polyester insulating film 150 as shown in FIG.

Subsequently, the ground terminal 170 and the high voltage terminal 180 are drawn out at both sides of the dielectric deposition film 140 to be connected to the terminal pin 190 of the high voltage bobbin 100.

In the drawings, reference numeral 200 denotes a diode.

Referring to the operation and effects of the present invention made of such a configuration as follows.

3 and 4, the high voltage coil 111 is wound in a plurality of layers, and the high voltage coil 111 is formed in a plurality of layers in the bobbin main body 120 of the high voltage bobbin 100 that generates a high voltage. In the state in which the insulating film 130 is wound for interlayer insulation between the winding coil layer 110 wound by the winding coil layer 110, the upper side of the winding coil layer 110 wound on the bobbin body portion 120 of the high-pressure bobbin 100 As a result, the dielectric deposition film 140 for the high voltage capacitor is wound in a plurality of layers to configure the high voltage capacitor.

In the dielectric deposition film 140 constituting the high voltage capacitor, as shown in the enlarged view of FIG. 3, a plurality of aluminum thin films 160 are deposited and wound on the polyester insulating film 150. The ground terminal 170 and the high voltage terminal 180 are drawn out at both sides of the dielectric deposition film 140 to form a high voltage capacitor.

On the other hand, the ground terminal 170 and the high voltage terminal 180, which are respectively drawn to both sides of the dielectric deposition film 140, in a state where one end thereof is connected to the aluminum thin film 160, the ground terminal 170 and the high pressure The other end of the terminal 180 is connected to the terminal pin 190 installed on the bobbin body portion 120 of the high voltage bobbin 100 to easily and easily constitute a high voltage capacitor, in which case the formation of the high voltage capacitor The dielectric deposition film 140 may be wound around the low pressure bobbin, not the high pressure bobbin 100, to form a high voltage capacitor.

As described above, according to the high voltage capacitor of the FBT according to the present invention, a dielectric deposition film is used on the main body of the high pressure bobbin or the low pressure bobbin without the need to separately manufacture a high voltage capacitor installed inside the FBT and fix it to the capacitor holder. The high voltage capacitor can be easily and easily configured, and accordingly, the size of the FBT can be kept compact and the high voltage capacitor can be filled and cured integrally with the high voltage capacitor when filling the insulating resin inside the FBT. While easy to install, there is an excellent effect that can greatly reduce the unit cost of the product.

Claims (4)

In the high voltage capacitor of FBT, Bobbin body portion 120 of the high-pressure bobbin 100, the high-voltage coil 111 is wound in a plurality of layers; Between the winding coil layer 110 of the bobbin body portion 120 is wound insulation film 130 for insulation; A dielectric deposition film 140 for a high voltage capacitor wound around the winding coil layer 110 of the high voltage coil 111 wound around the bobbin body 120 of the high pressure bobbin 100; The high pressure of the FBT, characterized in that it comprises a ground and high voltage terminals 170, 180 which are drawn to both sides of the dielectric deposition film 140 is installed to be connected to the terminal pin 190 of the high-pressure bobbin 100 Capacitors. The high voltage capacitor of claim 1, wherein the dielectric deposition film (140) for the high voltage capacitor is configured such that an aluminum thin film (160) is formed and wound on the polyester insulating film (150). The FBT of claim 1, wherein the ground terminal 170 and the high voltage terminal 180 which are respectively drawn to both sides of the dielectric deposition film 140 are connected to the aluminum thin film 160. High voltage capacitor. The high voltage capacitor of claim 1, wherein the dielectric deposition film (140) for forming the high voltage capacitor is wound in a low pressure bobbin to form a high voltage capacitor.