KR910005517Y1 - Variable inductor - Google Patents
Variable inductor Download PDFInfo
- Publication number
- KR910005517Y1 KR910005517Y1 KR2019890006756U KR890006756U KR910005517Y1 KR 910005517 Y1 KR910005517 Y1 KR 910005517Y1 KR 2019890006756 U KR2019890006756 U KR 2019890006756U KR 890006756 U KR890006756 U KR 890006756U KR 910005517 Y1 KR910005517 Y1 KR 910005517Y1
- Authority
- KR
- South Korea
- Prior art keywords
- spring coil
- inductance
- spiral
- coil
- variable
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/04—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by relative movement of turns or parts of windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본 고안의 분리사시도.1 is an exploded perspective view of the present invention.
제 2 도는 본 고안의 결합상태 측면도.2 is a side view of the coupling state of the present invention.
제 3 도는 종래 기술의 일부절개 사시도.3 is a partially cutaway perspective view of the prior art.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 스프링 코일 12 : 나선형 코어10 spring coil 12 spiral core
13 ; 나선형 요구 P1, P2, P3, P4 : 피치13; Pitch: Spiral Requirements P1, P2, P3, P4
본 고안은 저항, 캐패시턴스와 함께 수동소자의 하나인 인덕턴스에 관한 것으로, 라디오 수신기의 주파 수동조기 또는 라디오 수신기의 동조회로에 사용되는 가변스프링 코일에 관한 것이다.The present invention relates to an inductance, which is one of passive elements together with a resistance and a capacitance, and relates to a variable spring coil used in a tuning device of a radio receiver or a passive frequency regulator of a radio receiver.
일반적으로 코일 형태의 인덕턴스값 "ㄴ"은,[H]으로 주어진다.In general, the coil type inductance value "b", Given by [H].
여기에서 "MS"는 공기의 비투자율, "A"는 코일의 단면적, "N"은 감긴수, "l"은 길이를 나타낸다."MS" is the specific permeability of air, "A" is the cross-sectional area of the coil, "N" is the number of turns, "l" is the length.
종래의 스프링코일은 고정인덕턴스와 가변인덕턴스형이 있는바, 가변인덕턴스형 스프링코일은 제 3 도에서 보는 바와 같이 스프링 코일(1)을 보빈(2)에 감고 이 보빈 내에는 비투자율이 큰 재료로 되어 있는 코어(3)의 삽입을 위한 별도의 구조물이 필요하게 되므로 스프링 코일이 사용되는 기기에 부품수가 증가되는 결점이 있었다.Conventional spring coils have a fixed inductance and a variable inductance type. The variable inductance type spring coils are wound in the bobbin 2 with the spring coil 1 as shown in FIG. Since there is a need for a separate structure for the insertion of the core 3, there is a drawback that the number of parts is increased in the apparatus in which the spring coil is used.
본 고안은 종래의 이와 같은 점을 감인하여 고안한 것으로, 비투자율 재료의 코어를 사용하지 않고 피치율이 다른 플라스틱 구조물로된 나선형 코어만을 사용하여 코일의 길이를 변화시켜 인덕턴스를 가변토록 한 것이다.The present invention was conceived in consideration of the above-described point of the related art, and the inductance is varied by varying the length of the coil by using only a spiral core made of a plastic structure having a different pitch ratio without using a core of non-permeability material.
이하 본고안의 실시예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
스프링 코일(10)내에 선 단면에 가변조정공(11)을 형성한 나선형 코어(12)를 결합토록 하며 이 나선형 코어는 각 피치 P1, P2, P3, P4…를 점차 크게 하므로 P1〈P2〈P3〈P4…가 되게하여 각 나선요구(13)에 스프링 코일(10)이 감겨지도록 하여서 된 것이다.The spiral core 12 having the variable adjustment hole 11 formed in the cross section of the spring coil 10 is coupled to each other, and the spiral cores each have a pitch P1, P2, P3, P4... Since P1 <P2 <P3 <P4... It is to be so that the spring coil 10 is wound around each spiral demand (13).
이와 같이 구성된 본 고안은 스프링 코일(10)자체가 나선형 코어(12)의 나선요구(13)에 직접 결합되게 한 것이므로 가변조절공(11)을 이용하여 드라이버등을 사용 나선형 코어(12)를 회전시키면 각 피치 P1, P2, P3, P4…가 점차 크게 되어 있으므로 각 나선요구(13)에 결합되는 스프링 코일(10) 사이의 부분적 인덕턴스가 변환하게 되는 것이다.The present invention configured as described above allows the spring coil 10 itself to be directly coupled to the spiral demand 13 of the spiral core 12, so that the spiral core 12 is rotated using a driver or the like using the variable adjusting hole 11. The pitch P1, P2, P3, P4... Since is gradually larger is the partial inductance between the spring coil 10 coupled to each helix demand 13 is to be converted.
따라서 본 고안은 스프링 코일(10)의 인덕턴스 "ㄴ"은 코일의 길이에 반비례하므로 스프링 코일(10)에 나선형 코어(12)를 결합시키는 정도에 따라 인덕턴스는 가변 되며 이는 제 2 도에서 보는 바와 같이 피치는 P1〈P2〈P3〈P4…이므로 스프링 코일(10)이 "P1" 부근일때와 "P4" 부근에서의 인덕턴스값은 "P1" 부근이 "P4" 부근 보다는 크게 되는 것이다.Therefore, the present invention is because the inductance "b" of the spring coil 10 is inversely proportional to the length of the coil, the inductance is variable according to the degree of coupling the spiral core 12 to the spring coil 10, as shown in FIG. The pitch is P1 < P2 < P3 < Therefore, when the spring coil 10 is near " P1 " and the inductance value near " P4 " is larger than " P4 "
이와 같이 본 고안은 피치가 점차 증가하는 나선형 코어에 스프링 코일을 결합시켜 이 스프링 코일의 길이를 변화시켜 주므로 간단히 인덕턴스를 가변시켜줄 수 있게 되며 그 구조가 간단하고 부품수도 감소되는 등 매우 효과적인 고안이다.As such, the present invention combines the spring coil to the spiral core of which the pitch gradually increases, thereby changing the length of the spring coil, thereby making it possible to simply change the inductance, and the structure is simple and the number of parts is very effective.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890006756U KR910005517Y1 (en) | 1989-05-23 | 1989-05-23 | Variable inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890006756U KR910005517Y1 (en) | 1989-05-23 | 1989-05-23 | Variable inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900021078U KR900021078U (en) | 1990-12-14 |
| KR910005517Y1 true KR910005517Y1 (en) | 1991-07-27 |
Family
ID=19286336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890006756U KR910005517Y1 (en) | 1989-05-23 | 1989-05-23 | Variable inductor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR910005517Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100377561B1 (en) * | 1999-12-21 | 2003-03-26 | 장윤석 | Inner spiral processing method for screw type extrusion device |
-
1989
- 1989-05-23 KR KR2019890006756U patent/KR910005517Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR900021078U (en) | 1990-12-14 |
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