KR100240766B1 - A device for combined ferrite core of cathode ray tube fbt - Google Patents

Abstract

The present invention relates to a ferrite core coupling device that can be fixed by combining the ferrite core installed in one side of the FBT in a solid state, the technical configuration of the upper and lower ferrite core (3) (3 ') of the FBT case (1) The core support (5) is formed in the outer gap (G) is coupled to one end of the upper and lower ferrite core (3) (3 ') is formed so that the core insertion groove (4) is fixed to the insertion, the core The notch part 6 is provided in the center of the supporter 5 so that one end of the upper and lower ferrite cores 3 and 3 'is held thereon so as to maintain and maintain a constant gap G. In the entirety of 5), the adhesive inlet groove 7 for the introduction of the adhesive is to be formed.

Accordingly, the ferrite core in the core support can be fixed in a solid state without fastening a separate elastic U clip for fixing the upper and lower ferrite cores.

Description

Ferrite Core Coupling Device for Flyback Transformer

The present invention relates to a ferrite core coupling device that allows a ferrite core installed to one side of a flyback transformer (hereinafter referred to as "FBT"), which is a high voltage generator for supplying a high voltage to a CRT of a TV and a monitor, to be fixed by being coupled to a solid state. In particular, a core support having a core insertion groove formed at one end of the upper and lower ferrite cores is fixed to an outer gap portion to which the upper and lower ferrite cores of the FBT case are coupled, and the notch is formed at the center of the core support. It is additionally constrained so that one end of the upper and lower ferrite cores is fixed to it so as to maintain a constant gap, and all of the core supports are formed so that an adhesive inlet groove for inlet of the adhesive material is formed, thereby combining ferrite cores to one side of the FBT case. Separate elastic U clips for fixing the upper, lower and ferrite cores The ferrite core coupling device of the FBT which enables the ferrite core to be firmly fixed and fixed in the core support, and prevents the occurrence of flow due to the poor adhesion of the ferrite core to obtain a stable inductance value of the ferrite core. will be.

In the conventional known ferrite core structure of FBT, as shown in FIG. 1, a ferrite core 23 divided into upper and lower parts is installed on one side of the case of the FBT 21 in which the low-pressure bobbin 22 is inserted. A gap G is formed between the upper and lower ferrite cores 23 to maintain a constant inductance value, and the elastic U clip 24 is coupled to one side of the ferrite core 23 so that one end thereof has a low pressure bobbin 22. It is made of a structure for supporting and fixing the ferrite core 23 inserted into the inside.

As shown in FIG. 2, the conventional ferrite core 23 having the above-described coupling structure has a ferrite core 23 exposed to the outside of the FBT case in a state where one end is inserted into the low pressure bobbin 22 of the FBT 21. The magnetic circuit of the FBT 21 is configured through the above, and at this time, the upper and lower sides of the ferrite core 23 are attached to the case of the FBT 21 through the adhesive D.

However, the ferrite core 23, which is divided into upper and lower parts as described above, and is coupled while maintaining a constant gap G, is located at the position of the ferrite core 23 by an adhesive material that is simply applied to the inside of the upper and lower cores. After fixing, by twisting the U clip 24 again, the upper and lower cores are warped, and accordingly, the upper and lower ferrite cores are alternately coupled to each other, as well as from the ferrite cores during operation of the FBT. Due to the high heat generated, deterioration of the adhesive material (D) applied to fix a small amount occurs, the flow of the ferrite core is generated, and accordingly the exact inductance value can not be obtained, resulting in a lot of problems such as the electrical characteristics of the FBT is degraded will be.

The present invention has been made in order to solve the various problems of the prior art as described above, the purpose of, when combining the ferrite core to one side of the FBT case, to fasten a separate elastic U clip for fixing the upper and lower ferrite cores Stable inductance of ferrite cores is prevented by not only twisting ferrite cores in the core support, but also preventing twisting when combining upper and lower ferrite cores, and preventing occurrence of flow due to poor adhesion of ferrite cores. It is to provide a ferrite core coupling device of FBT that can be obtained.

1 is a schematic exploded perspective view showing a coupling structure of a typical FBT ferrite core.

2 is a main structural diagram showing an image formation state of a conventional upper and lower ferrite core.

Figure 3 is a schematic exploded perspective view showing a ferrite core bonding structure of the FBT according to the present invention.

Figure 4 is a perspective view of the main portion of the core fixture to support the upper and lower ferrite core of the present invention.

Figure 5 is a side cross-sectional structural view of the combined state of the upper, lower ferrite core coupled to the core fixture of the present invention.

Explanation of symbols on the main parts of the drawings

1 ... FBT case 2 ... Low pressure bobbin

3,3 '... upper, lower ferrite core 4 ... core insert groove

5.core support 6 ... notch

7.Glue Inlet Groove G ... Gap

S ... space

As a technical configuration for achieving the above object, the present invention provides a core support having a core insertion groove formed so that one end of the upper and lower ferrite cores can be inserted into and fixed to an outer gap portion to which the upper and lower ferrite cores of the FBT case are coupled. In the center of the core support, the notch is concave, and one end of the upper and lower ferrite cores are caught by this to maintain a constant gap, so that all of the core supports are formed such that an adhesive inlet groove for inlet of the adhesive is formed. By providing a ferrite core coupling device of the FBT made of a configuration.

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

Figure 3 is a schematic exploded perspective view showing a ferrite core coupling structure of the FBT according to the present invention, Figure 4 is a perspective view of the main part of the core fixture for holding and fixing the upper and lower ferrite core of the present invention, the low-pressure bobbin (2) therein Ferrite cores (3) (3 ') divided into upper and lower parts are installed on one side of the interpolated FBT case (1), and a gap for maintaining a constant inductance value between the upper and lower ferrite cores (3) (3') ( G) is formed, and a gluing material is applied to the gap G to support and fix the upper and lower ferrite cores 3 having one end inserted into the inside of the low pressure bobbin 2.

In addition, one end of the upper and lower ferrite cores (3) and (3 ') is fixed to the outer gap (G) where the upper and lower ferrite cores (3) and (3') of the FBT case 1 are coupled. A core support 5 having a core insertion groove 4 is installed, and a notch 6 is recessed at the center of the core support 5 so that one end of the upper and lower ferrite cores 3 and 3 'is provided. This is fixed to maintain a constant gap (G), and the adhesive material inlet groove 7 for the introduction of the adhesive material is formed in the front of the core support (5).

One end of the upper and lower ferrite cores 3 and 3 'is notched in the center of the core support 5 so that one end of the core ferrite cores 3 and 3' maintains the gap G. It is formed so that the adhesive material is filled and cured.

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

As shown in Figures 3 to 5, the ferrite core (3) (3) which is divided into the upper and lower parts on the outer side of the FBT case (1) in which the high and low pressure bobbin (2) is interpolated to generate a high voltage therein. ') Is formed to maintain a constant inductance value (G), while the adhesive material is applied to the gap (G) portion, one end of the core is inserted into the inside of the low-pressure bobbin (2), upper and lower ferrite core (3) is supported and fixed.

At this time, when the upper and lower ferrite cores (3) (3 ') coupled to the outside of the FBT case (1) are combined and fixed in a solid state without the need for a separate fastening means, the upper and lower ferrite cores ( 3) The core support 5 is installed as an integral part in the outer gap G portion of (3 '), and one end of the upper and lower ferrite cores (3) and (3') is the core support (5). It is firmly fixed by the curing of the adhesive is inserted into the core insertion groove (4) of the.

As shown in FIG. 4, the core support 5 has a core support 5 installed at one side of the FBT case 1 having an upper gap and a lower ferrite core 3, 3 ′ with an outer gap G. In the state where the one end of the core is inserted in the horizontal direction and the core is respectively inserted therein, the notched portion 6 having a cross-section > The lower and upper ends of the lower ferrite cores 3 and 3 'are caught by the notches 6 so as to maintain and maintain a constant gap G, and the front of the core support 5 The adhesive inlet groove 7 for the inlet of the adhesive material in the longitudinal direction is formed to be long, and the adhesive material is injected to fix the ferrite cores 3 and 3 'through the adhesive inlet groove 7.

In addition, the core support 5 is formed by the notch 6 recessed in the center of the core support 5 so that one end of the upper and lower ferrite cores 3 and 3 ′ is engaged to maintain the gap G. Space (S) is formed inside the center of the core insertion groove (4) of the core to form a gap (G), and also the adhesive inlet groove (7) formed in all of the core support (5) core It is formed in the upper portion of the support (5) to be in communication with the central space (S), the adhesive material flowing through the adhesive inlet groove 7 is filled in the space (S) as shown in Figure 5 and hardened As a result, the outer gap portions of the upper and lower ferrite cores 3 and 3 'are naturally formed, and the ferrite cores can be reliably supported and fixed.

According to the ferrite core coupling device of the FBT according to the present invention as described above, when the ferrite core is coupled to one side of the FBT case, in the core support without the need to fasten a separate elastic U clip for fixing the upper and lower ferrite core The ferrite core is coupled and fixed in a solid state, as well as to prevent warpage of the outer gap portion of the core when the upper and lower ferrite cores are combined, and to prevent the occurrence of flow due to the poor adhesion of the ferrite cores to stabilize the ferrite cores. There is an excellent effect of obtaining an inductance value.

Claims (5)

Ferrite cores (3) (3 ') divided into upper and lower parts are installed on one side of the FBT case (1) in which the low-pressure bobbin (2) is inserted, and the upper and lower ferrite cores (3) and (3') are fixed. A gap G is formed to maintain an inductance value, and a work piece is applied to the gap G to support and fix the upper and lower ferrite cores 3 having one end inserted into the low pressure bobbin 2. In the ferrite core bond structure of the FBT made, One end of the upper and lower ferrite cores 3 and 3 'is inserted into the outer gap G portion to which the upper and lower ferrite cores 3 and 3' of the FBT case 1 are coupled. A core support 5 having a groove 4 formed therein is provided, and a notch 6 is recessed in the center of the core support 5 so that one end of the upper and lower ferrite cores 3 and 3 'is connected thereto. Ferrite core coupling device of the FBT, characterized in that consisting of a configuration that is fixed to hold a constant gap (G) hanging. According to claim 1, wherein the core support 5 provided on one side of the FBT case (1) is composed of an injection molding integral with the FBT case (1), upper and lower ferrite cores (3) (3 ') Ferrite core coupling device of the FBT characterized in that is installed in the horizontal direction protruding in the outer gap (G). The core supporter 5 of claim 1, wherein one end of the upper and lower ferrite cores 3 and 3 'is interpolated and fixed, so that an adhesive inlet groove 7 for introducing the adhesive material is formed therein. Ferrite core coupling device of the FBT. The adhesive material inflow groove 7 formed in the whole of the core support 5 is formed in the upper part of the core support 5, and it communicates with the center space S of Claim 1 or 2 Ferrite core coupling device of the FBT. The notch part 6 in the center of the core support 5 so that one end of the said upper and lower ferrite cores 3 and 3 'may be caught may hold | maintain the gap G. The ferrite core bonding apparatus of the FBT, characterized in that the space (S) is formed so that the filling material is filled and cured.

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