KR0121520Y1 - Focus units combination system of fbt - Google Patents

Abstract

The present invention relates to a focus unit coupling structure of a flyback transformer (FBT), wherein the front part (4) of the focus unit case (3) protruded integrally through the FBT case (1) and the partition portion (2). Insertion holes 7a and 7b for inserting the focus axis 5 and the screen axis 6 into the upper and lower sides are respectively laid, and a ceramic substrate is formed on the partition portion 2 that is the bottom of the focus unit case 6. (8) by interpolating structure, it is not necessary to provide a separate focus unit and combine it with the FBT case, which saves labor and improves workability, greatly reduces production cost, and uses adhesives. By eliminating the improvement of the reliability of the FBT due to the penetration of the adhesive, the leakage of the insulating resin can be effectively prevented.

Description

Focus unit coupling structure of flyback transformer

1 is an exploded perspective view for explaining a focus unit coupling structure of a conventional flyback transformer.

Figure 2 is a schematic perspective view for explaining the focus unit coupling structure of the flyback transformer according to the present invention.

* Explanation of symbols for main parts of the drawings

1: FBT case 2: divider

3: Focus unit case 4: Front part

5: Focus axis 6: Screen axis

7a, 7b: Insertion hole 8: Ceramic substrate

The present invention is a FLY BACK TRANS FORMER (hereinafter referred to as FBT), which is a high-pressure generator that supplies high voltage to the CRTs of TVs and monitors. In more detail, an insertion hole into which a focus and a screen axis are inserted is inserted into the front and upper sides of a focus unit case which is integrally protruded through an FBT case and a partition part, and a partition injury which is the bottom of the focus unit case is formed. By inserting the ceramic substrate into the inside, a separate focus unit is provided so that it is not necessary to be combined with the FBT case, which reduces labor and improves workability, and improves reliability of the focus unit by preventing adhesive penetration due to the application of the adhesive. Of coupling unit of focus unit of flyback transformer to prevent leakage of insulating resin It relates.

In a structure for coupling and fixing a focus unit on a case of a conventional FBT, as shown in FIG. 1, a focus shaft 22 and a screen shaft 23 are provided, and a substrate 24 is placed therein. The focus unit 25 was prepared separately, and the structure was made to engage and fix using the adhesive 29 in the projection 28 protruded on the engaging portion 27 of the FBT case 26.

Therefore, when the separately provided focus unit 25 is bonded to the coupling portion 27 of the FBT case 26 as the adhesive 29, the adhesive 29 penetrates into the interior to lower the electrical characteristics, and the insulating resin is When molding the focus unit 25 using the epoxy resin, there is a disadvantage in that leakage of the epoxy resin occurs. In addition, as described above, there are many problems such as an increase in the process, a decrease in workability, and an increase in production cost by separately providing the focus unit 25.

The present invention has been made in order to improve the conventional problems as described above, the purpose, the insertion of the focus and the screen axis is inserted into the front and top of the front and bottom of the focus unit case which is integrally formed via the FBT case and the partition portion Holes are formed respectively, and by inserting the ceramic substrate on the partition portion that is the bottom of the focus unit case, there is no need to prepare a separate focus unit and combine it with the FBT case, thereby reducing workmanship and improving workability. In addition to significantly reducing the unit cost, by eliminating the use of the adhesive to improve the reliability of the FBT due to the penetration of the adhesive, to provide a focus unit coupling structure of the FBT that can effectively prevent the leakage of the insulating resin.

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

Figure 2 is a schematic perspective view for explaining the focus unit coupling structure of the FBT according to the present invention, the front portion of the focus unit case (3) which is integrally formed via the FBT case (1) and the partition (2) ( 4) Insertion holes 7a and 7b for inserting the focus shaft 5 and the screen shaft 6 into the upper and lower sides are respectively laid, and on the partition portion 2 which is the bottom of the focus unit case 6. The ceramic substrate 8 is made to interpolate.

Referring to the operation and effects of the present invention composed of such a structure as follows.

That is, as shown in FIG. 2, in a state in which the focus unit case 3 is integrally molded with one mold mold via the partition portion 2 on one side of the FBT case 1, The focus shaft 5 and the screen shaft 6 are respectively inserted into the insertion holes 7a and 7b installed in the front portion 4, and a ceramic having a predetermined pattern is formed at the bottom of the focus unit case 3. By interpolating the substrate 8, the joining operation of the focus unit is simply completed.

In particular, by excluding the use of the adhesive by the bonding structure as described above, to prevent the electrical characteristics of the FBT due to the penetration of the adhesive, to reduce the labor and workability to reduce the production cost, the leakage of epoxy resin This will not happen at all.

As described above, according to the focus unit coupling structure of the FBT according to the present invention, insertion holes into which the focus and the screen shaft are inserted are respectively formed on the front and top of the focus unit case which is integrally formed through the FBT case and the partition part. By inserting the ceramic substrate on the partition portion, which is the bottom of the focus unit case, it is not necessary to provide a separate focus unit and combine it with the FBT case, thereby reducing the labor and workability and greatly reducing the production cost. Of course, by eliminating the use of the adhesive to improve the reliability of the FBT due to the penetration of the adhesive, there is an advantage that the leakage of the insulating resin can be effectively prevented.

Claims (1)

Insertion into which the focus axis 5 and the screen axis 6 are inserted above and below the front part 4 of the focus unit case 3 integrally protruding through the FBT case 1 and the partition part 2. Holes 7a and 7b are respectively laid, and the flyback transformer is configured to interpolate the ceramic substrate 8 on the partition portion 2 which is the bottom of the focus unit case 6. Focus unit coupling structure.