KR920003369B1

KR920003369B1 - Fbt for high frequency

Info

Publication number: KR920003369B1
Application number: KR1019890015267A
Authority: KR
Inventors: 박진형
Original assignee: 삼성전기 주식회사; 서주인
Priority date: 1989-10-24
Filing date: 1989-10-24
Publication date: 1992-04-30
Also published as: KR910009045A

Abstract

The method necessary for making FBT in High-Frequency wave condition, facilitates to radiate het generated fromhigh-voltage secondary coil and to insulate the secondary coil electrically. The method is composed of cross-winding high-voltage secondary coils (23,23') arranged at the same intervals, forming a space (25) enclosed with upper and lower coils,and inserting insulation material to the space (25). When cross-winding the coils (23,23') forming radiation curve, the winding angle is 50-60 degrees.

Description

High pressure coil winding method of high frequency FBT

제1도는 고주파용 FBT의 수직단면도.1 is a vertical cross-sectional view of a high frequency FBT.

제2도는 종래의 고압코일권선방식을 설명하기 위한 FBT의 개략확대단면도.2 is a schematic enlarged cross-sectional view of an FBT for explaining a conventional high-pressure coil winding method.

제3도는 본 발명의 고압코일권선방식을 설명하기 위한 FBT의 개략확대단면도.Figure 3 is a schematic enlarged cross-sectional view of the FBT for explaining the high-pressure coil winding method of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

21 : 보민 22 : 1차코일21: Bomin 22: Primary Coil

23, 23' : 2차코일 25 : 공간부23, 23 ': secondary coil 25: space part

본 고안은 고압트랜스, 특히 모니터용 고압출력을 발생하는 고주파용 FBT의 고압코일권선방법에 관한 것이다.The present invention relates to a high voltage coil winding method of a high frequency FBT that generates a high voltage transformer, in particular a high voltage output for a monitor.

최근, 모니터의 성능을 개선시키기 위해 수평출력단의 주파수를 상승시키는 추세에 있다.Recently, the frequency of the horizontal output stage has been increasing to improve the performance of the monitor.

이에따라서 FBT도 높은 주파수(80-100KHz)에 대응할 수 있어야 하는데, 여기에서 문제가 되는 것은 고압측, 즉 고압용 2차코일에서 발생되는 열을 어떻게 방출해내는가와 2차코일에서의 절연을 얼마만큼 안정하게 확보할 수 있는가에 있다.Accordingly, the FBT should also be able to cope with high frequencies (80-100KHz). The problem here is how to release the heat generated from the high pressure side, that is, the secondary coil for high pressure, and how much insulation is in the secondary coil. As long as it can be secured.

특히, 기존의 FBT에 대한 효율적인 방열을 위한 구조는 간단하지 않다.In particular, the structure for efficient heat dissipation for the existing FBT is not simple.

가령, 방열을 위한 구조를 FBT의 외부에 부가한다하더라도 사이즈 증가 및 원가상승이 또다른 문제를 유발하게 된다.For example, even if the structure for heat dissipation is added to the outside of the FBT, the size increase and the cost increase cause another problem.

따라서, 고주파용 FBT에서의이 효율적인 방열 및 2차코일에서의 절연성확보를 위한 수단이 절실하게 요망되고 있다.Therefore, there is an urgent need for means for efficient heat dissipation in the high frequency FBT and for securing insulation in the secondary coil.

일반적인 FBT의 수직단면도는 제1도에서 도시한 바와 같이, 보빈(11)상에 1차코일(12)을 권선하고 난후 그 위에 절연체(14)를 덮고 상기 절연체(14)위에 2차코일(13)을 권선한 다음 페라이트코어(10)를 삽입하여 최종 FBT를 완성하게 된다.A vertical cross-sectional view of a typical FBT is shown in FIG. 1, after winding the primary coil 12 on the bobbin 11 and then covering the insulator 14 thereon and the secondary coil 13 over the insulator 14. ) And then the ferrite core 10 is inserted to complete the final FBT.

이러한 기존의 FBT에서의 2차코일(13)은 상기 제1도의 요부를 확대하여 나타내고 있는 제2도에서와 같이, 정렬적층권선하게 된다.The secondary coil 13 in the existing FBT is aligned with the laminated winding as shown in FIG. 2, which shows an enlarged main part of FIG.

따라서, 이를 고주파회로에 적용할 경우 방열이 쉽지않을 뿐더러 절연에도 상당한 우려가 있게 된다.Therefore, when applied to the high-frequency circuit is not only easy heat dissipation but also there is a significant concern in the insulation.

본 발명은 이와같은 점을 해결하기 위한 것으로, 고주파용 FBT의 고압 2차코일에서의 방열 및 절연성을 유효하게 확보할 수 있는 독특한 2차코일권선방법을 제안한다.The present invention has been made to solve such a problem, and proposes a unique secondary coil winding method capable of effectively securing heat dissipation and insulation in the high voltage secondary coil of the high frequency FBT.

이하, 본 발명을 설명하면 다음과 같다.Hereinafter, the present invention will be described.

제2도에서 도시하고 있는 바와 같이, 보빈(21)상에 1차코일(22)을 권선하고 절연체(24)를 씌운다음 고압용 2차코일(23,23')을 일정한 간격을 유지하면서 차례로 방사선 형태로 권선하여 상, 하층의 2차코일(23,23')이 서로 교차되게 한다.As shown in FIG. 2, the primary coil 22 is wound on the bobbin 21, the insulator 24 is covered, and the secondary coils 23 and 23 'for high pressure are sequentially maintained at regular intervals. Winding in the form of radiation causes the upper and lower secondary coils 23 and 23 'to cross each other.

이때의 방사선 권선각도(θ)는 50°-60°일때가 가장 바람직하다.In this case, the radiation winding angle θ is most preferably 50 ° -60 °.

따라서, 상, 하층의 2차코일(23,23')사이에는 공간부(25)가 형성되므로, 절연물의 흐름이 용이하여 함침이 우수하게 되고 권선내부의 열이 쉽게 방출되는 것이다.Therefore, since the space portion 25 is formed between the upper and lower secondary coils 23 and 23 ', the insulator flows easily, so that the impregnation is excellent and heat inside the winding is easily released.

상기 2차코일(23) 또는 (23')이 권선간격은 권선각도와 권선층수 그리고 권선쪽에 따라 결정된다.The winding interval of the secondary coil 23 or 23 'is determined according to the winding angle, the number of winding layers, and the winding side.

이상에서 설명한 바와 같이, 본 발명에 따른 고주파용 FBT는 고주파회로에의 적용에 기인하는 그 내부의 발열에 대한 우수한 방출성과 2차코일간의 우수한 절연성을 가지게 된다.As described above, the high frequency FBT according to the present invention has excellent emission to the heat generated therein due to the application to the high frequency circuit and excellent insulation of the secondary coil.

더불어 본 발명은 앞에서 예로든 FBT에만 적용되는 것으로 한정되는 것이 아니라 어떠한 고주파용 트랜스에도 적용할 수 있으며, 그 효과 또한 상기한 바와 동일하다.In addition, the present invention is not limited to being applied only to the FBT as described above, but may be applied to any high-frequency transformer, and the effect thereof is also the same as described above.

Claims

In the high voltage transformer winding method, the secondary coils 23 and 23 'for high voltage are cross-wound in a radiation form while maintaining a constant interval so that the space 25 is formed by the upper and lower secondary coils. High-frequency coil winding method of the high frequency FBT, characterized in that the insulator is injected into the space (25).

The high-pressure coil winding method of the high frequency FBT according to claim 1, wherein the radiation winding angle θ is 50 ° -60 °.