JPH0110908Y2 - - Google Patents
Info
- Publication number
- JPH0110908Y2 JPH0110908Y2 JP3669083U JP3669083U JPH0110908Y2 JP H0110908 Y2 JPH0110908 Y2 JP H0110908Y2 JP 3669083 U JP3669083 U JP 3669083U JP 3669083 U JP3669083 U JP 3669083U JP H0110908 Y2 JPH0110908 Y2 JP H0110908Y2
- Authority
- JP
- Japan
- Prior art keywords
- annular groove
- conductor ring
- ring
- rotary transformer
- protrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 29
- 229910000859 α-Fe Inorganic materials 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【考案の詳細な説明】
本考案はVTR等に使用されるロータリートラ
ンスに関するものである。[Detailed Description of the Invention] The present invention relates to a rotary transformer used in VTRs and the like.
ロータリートランスにおいて、静電誘導又は電
磁誘導などを原因として、ある一つのチヤンネル
の信号が他のチヤンネルの信号に混入するという
現象すなわちクロストークが発生していた。この
クロストークによつてVTRにおいては画像に悪
影響を及ぼすなどの弊害があつた。このクロスト
ーク特性を向上させる為に、各チヤンネル間にシ
ヨートリングを設けることが一般的に知られてい
る。しかし、このシヨートリングにおいても、完
全にクロストーク特性を改善したものではなく、
更に特性の良いロータリートランスが産業界から
望まれている。また、クロストーク特性の改善の
為に、各チヤンネルごとに分離してしまう方法が
あるが、この方法では各チヤンネルごとに製造さ
れるフエライトコアが変形するなどにより、ロー
タリートランスとして非常に重要である真円度、
平行度などに問題があり、セパレート型とするこ
とには問題があつた。 In rotary transformers, a phenomenon in which a signal from one channel mixes with a signal from another channel, that is, crosstalk, occurs due to electrostatic induction or electromagnetic induction. This crosstalk has caused problems in VTRs, such as adversely affecting images. In order to improve this crosstalk characteristic, it is generally known to provide a short ring between each channel. However, even with this shot ring, the crosstalk characteristics are not completely improved.
A rotary transformer with even better characteristics is desired by industry. In addition, in order to improve crosstalk characteristics, there is a method of separating each channel, but this method causes deformation of the ferrite core manufactured for each channel, which is extremely important for rotary transformers. Roundness,
There were problems with parallelism, and there were problems with making it a separate type.
本考案は上記の要望に答えるロータリートラン
スを提供することを目的とする。 The present invention aims to provide a rotary transformer that meets the above requirements.
本考案は上記の目的を満足する為に、ロータリ
ートランスのフエライトコアを一体形とし、チヤ
ンネル溝の中間にクロストーク低減用の導体環を
挿入する為の環状溝を設け、又裏面にも同様に環
状溝を設け、この環状溝の一部に貫通孔が複数設
ける。そして、前記環状溝に係合する非磁性の導
体環であつて、前記貫通孔に係合する突出部を有
する導体環を前記環状溝のどちらか一方より挿入
し、更にもう一方の環状溝に非磁性の導体環を挿
入し、前記突出部を有する導体環と電気的に接続
させるものである。 In order to satisfy the above objectives, the present invention integrates the ferrite core of the rotary transformer, provides an annular groove in the middle of the channel groove for inserting a conductor ring for reducing crosstalk, and also has a similar groove on the back side. An annular groove is provided, and a plurality of through holes are provided in a part of the annular groove. Then, a nonmagnetic conductor ring that engages with the annular groove and has a protrusion that engages with the through hole is inserted into either one of the annular grooves, and then into the other annular groove. A non-magnetic conductor ring is inserted and electrically connected to the conductor ring having the protrusion.
また、前記導体環を固着させるとき又は導体環
どうしを電気的に接続させるときに導導電性接着
材又は導電性樹脂を用いることができる。 Further, a conductive adhesive or a conductive resin can be used when fixing the conductor rings or electrically connecting the conductor rings.
また、導体環において、一方は突出部を有する
導体環であり、もう一方は突出部を有しない導体
環を用いているが、両方共突出部を有する導体環
を用いて、それぞれの突出部を接合させることも
可能である。 In addition, in the conductor rings, one conductor ring has a protrusion and the other uses a conductor ring without a protrusion, but both conductor rings have a protrusion, and each protrusion is It is also possible to join them.
以下本考案の一実施例により詳細に説明する。
第１図は本考案に係る一実施例のフエライトコア
の平面図であり、第２図は第１図のＡ−Ａ断面図
であり、第３図は第１図のＢ−Ｂ断面図である。
この実施例のフエライトコア１はチヤンネル用溝
２，３が設けてあり、このチヤンネル溝２，３の
中間にクロストーク低減用の導体環を挿入する為
の環状溝４が設けてあり、又この裏面にも前記環
状溝４と同様に環状溝５が設けてあり、この環状
溝５と前記環状溝４とを貫通する貫通孔６が複数
設けてある。 An embodiment of the present invention will be explained in detail below.
FIG. 1 is a plan view of a ferrite core according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG. be.
The ferrite core 1 of this embodiment is provided with channel grooves 2 and 3, and an annular groove 4 for inserting a conductor ring for reducing crosstalk is provided between the channel grooves 2 and 3. An annular groove 5 similar to the annular groove 4 is also provided on the back surface, and a plurality of through holes 6 are provided to pass through the annular groove 5 and the annular groove 4.
また、前記貫通孔６に係合する突出部７を有す
る導体環８の平面図を第４図に示し、その斜視図
を第５図に示す。また、突出部を有しない導体環
９の平面図を第６図に示し、その断面図を第７図
に示す。この突出部７を有する導体環８を前記フ
エライトコア１の貫通孔６に突出部７を係合させ
て環状溝４あるいは環状溝５に挿入し、更に前記
環状溝４あるいは環状溝５のうち導体環８を挿入
しなかつた環状溝に突出部を有しない導体環９を
挿入し、該導体環９と前記導体環８とを電気的に
接続するものである。 Further, a plan view of a conductor ring 8 having a protrusion 7 that engages with the through hole 6 is shown in FIG. 4, and a perspective view thereof is shown in FIG. Further, a plan view of the conductor ring 9 having no protrusion is shown in FIG. 6, and a cross-sectional view thereof is shown in FIG. The conductor ring 8 having the protrusion 7 is inserted into the annular groove 4 or the annular groove 5 by engaging the protrusion 7 with the through hole 6 of the ferrite core 1. A conductor ring 9 having no protrusion is inserted into the annular groove in which the ring 8 was not inserted, and the conductor ring 9 and the conductor ring 8 are electrically connected.
また、導体環の厚みを環状溝の深さより薄くし
ておくことにより、例え導体環を硬質材料を用
い、研摩に適さないものであつても、フエライト
コアのチヤンネル溝の設けられた面又はその裏面
を研摩することが容易となり、ロータリートラン
スにおいて非常に重要な特性である平行度の調整
を簡単にすることができる。 In addition, by making the thickness of the conductor ring thinner than the depth of the annular groove, even if the conductor ring is made of a hard material and is not suitable for polishing, it can be used on the surface of the ferrite core where the channel groove is provided or It becomes easy to polish the back surface, making it easy to adjust parallelism, which is a very important characteristic in rotary transformers.
このような構造とすることによつて、チヤンネ
ル間に発生する磁路を遮断することができる。な
ぜなら、チヤンネル間に磁路が発生すると、その
磁路を打ち消す方向の磁路を導体環が発生させ、
従つて、チヤンネル間の磁路を遮断するものであ
る。このチヤンネル間の磁路を遮断することによ
つてクロストーク特性を大いに向上させるもので
ある。 With such a structure, it is possible to block the magnetic path generated between the channels. This is because when a magnetic path is generated between channels, the conductor ring generates a magnetic path in a direction that cancels out the magnetic path.
Therefore, the magnetic path between the channels is blocked. By blocking the magnetic path between these channels, crosstalk characteristics are greatly improved.
以上詳記した如く、本考案によるロータリート
ランスは、クロストーク特性を大いに向上させた
ものであり、VTRに用いたならば画質の優れた
ものを得ることができ、産業的に非常に有益なも
のである。 As detailed above, the rotary transformer according to the present invention has greatly improved crosstalk characteristics, and when used in a VTR, it can provide excellent image quality, making it extremely useful industrially. It is.
第１図は本考案に係る一実施例のフエライトコ
アの平面図であり、第２図は第１図のＡ−Ａ断面
図であり、第３図は第１図のＢ−Ｂ断面図であ
り、第４図は本考案に係る一実施例の導体環の平
面図であり、第５図は第４図の斜視図であり、第
６図は本考案に係る別の実施例の導体環の平面図
であり、第７図は第６図の断面図である。
１……フエライトコア、２，３……チヤンネル
溝、４，５……環状溝、６……貫通孔、７……突
出部、８，９……導体環。
FIG. 1 is a plan view of a ferrite core according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG. 4 is a plan view of a conductor ring according to one embodiment of the present invention, FIG. 5 is a perspective view of FIG. 4, and FIG. 6 is a conductor ring according to another embodiment of the present invention. FIG. 7 is a sectional view of FIG. 6. 1... Ferrite core, 2, 3... Channel groove, 4, 5... Annular groove, 6... Through hole, 7... Projection, 8, 9... Conductor ring.
Claims (1)
には、同心円状のチヤネル用溝が設けてあり、
該チヤネル用溝の中間にも環状溝を設け、該環
状溝の一部には複数の貫通孔を設け、更にその
裏面にも前記環状溝と同位置に環状溝を設けて
いて、前記一の面若しくはその裏面の環状溝に
係合する非磁性の導体環であつて、前記貫通孔
に係合する突出部を有する導体環を前記一の面
若しくはその裏面の環状溝に挿入し、更に導体
環を挿入しなかつた前記一の面若しくはその裏
面の環状溝に非磁性の導体環を挿入し、前記の
突出部を有する導体環と電気的に接続させたフ
エライトコアのチヤンネル用溝にコイルを施
し、一の面を相対向させて成ることを特徴とす
るロータリートランス。 ２ 実用新案登録請求の範囲第１項において、接
着材として導電性接着材又は導電性樹脂を用い
ることを特徴とするロータリートランス。 ３ 実用新案登録請求の範囲第１項において、導
体環の代わりに導電性樹脂又は導電性接着材を
用いることを特徴とするロータリートランス。 ４ 実用新案登録請求の範囲第１項において、貫
通孔に係合する突出部を有する導体環どうしを
それぞれ環状溝に挿入固着することを特徴とす
るロータリートランス。[Claims for Utility Model Registration] 1. A concentric channel groove is provided on one surface of a ferrite core formed on a disk,
An annular groove is also provided in the middle of the channel groove, a plurality of through holes are provided in a part of the annular groove, and an annular groove is provided on the back side of the annular groove at the same position as the annular groove, and the annular groove is provided in the same position as the annular groove. A non-magnetic conductor ring that engages with an annular groove on the surface or the back surface thereof, the conductor ring having a protrusion that engages with the through hole is inserted into the annular groove on the one surface or the back surface thereof, and Insert a non-magnetic conductor ring into the annular groove on the first side or the back side where no ring was inserted, and insert the coil into the channel groove of the ferrite core that is electrically connected to the conductor ring having the protrusion. A rotary transformer characterized by having two faces facing each other. 2. A rotary transformer as set forth in claim 1 of the utility model registration claim, characterized in that a conductive adhesive or a conductive resin is used as the adhesive. 3. The rotary transformer according to claim 1 of the utility model registration, characterized in that a conductive resin or a conductive adhesive is used instead of the conductor ring. 4. The rotary transformer according to claim 1 of the utility model registration, characterized in that conductor rings having protrusions that engage with through holes are inserted and fixed into respective annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3669083U JPS59143011U (en) | 1983-03-14 | 1983-03-14 | rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3669083U JPS59143011U (en) | 1983-03-14 | 1983-03-14 | rotary transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59143011U JPS59143011U (en) | 1984-09-25 |
| JPH0110908Y2 true JPH0110908Y2 (en) | 1989-03-29 |
Family
ID=30167355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3669083U Granted JPS59143011U (en) | 1983-03-14 | 1983-03-14 | rotary transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59143011U (en) |
-
1983
- 1983-03-14 JP JP3669083U patent/JPS59143011U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59143011U (en) | 1984-09-25 |
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