JPH0218568B2 - - Google Patents
Info
- Publication number
- JPH0218568B2 JPH0218568B2 JP58003763A JP376383A JPH0218568B2 JP H0218568 B2 JPH0218568 B2 JP H0218568B2 JP 58003763 A JP58003763 A JP 58003763A JP 376383 A JP376383 A JP 376383A JP H0218568 B2 JPH0218568 B2 JP H0218568B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- lead wire
- rotary transformer
- channel
- sectional
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【発明の詳細な説明】
本発明はVTR等に用いら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.
ビデオデツキの多機能化及び画質の良好なもの
への移行が進んでいる現在、ビデオデツキのヘツ
ドより信号を伝達するロータリートランスにおい
ては、多チヤンネル化及びチヤンネル間の信号混
入の阻止が要望されている。 At present, as video decks are becoming more multi-functional and have higher image quality, there is a need for rotary transformers that transmit signals from the head of the video deck to have multiple channels and to prevent signal mixing between channels.
従来のロータリートランスの一例の平面図を第
１図に示す。第２図に第１図のＡ−Ａ断面図、第
３図に第１図のＢ−Ｂ断面図を示す。第１図のコ
アは３チヤンネル用ロータリートランスであり、
各チヤンネルの巻線１１，１２，１３はフエライ
トコアに形成された溝底に接着剤により固定され
ている。この巻線のリード線１４，１５，１６は
フエライトコアに形成されているチヤンネル溝底
１７より低いスリツト溝底１８を通りロータリー
トランス外周に到つている。 FIG. 1 shows a plan view of an example of a conventional rotary transformer. FIG. 2 shows a sectional view taken along line AA in FIG. 1, and FIG. 3 shows a sectional view taken along line BB in FIG. The core in Figure 1 is a 3-channel rotary transformer,
The windings 11, 12, 13 of each channel are fixed to the bottom of a groove formed in the ferrite core with an adhesive. Lead wires 14, 15, and 16 of this winding pass through a slit groove bottom 18 that is lower than a channel groove bottom 17 formed in the ferrite core and reach the outer periphery of the rotary transformer.
このような構造をもつロータリートランスで
は、各チヤンネルリード線と巻線が空気を介して
交わつている為、この交点１９における巻線から
リード線へ又、リード線から巻線への信号の混入
が見逃せず、ビデオデツキの再生画像を悪くする
要因となつている。 In a rotary transformer with such a structure, each channel lead wire and the winding intersect through the air, so there is no chance of signals mixing from the winding to the lead wire or from the lead wire to the winding at this intersection 19. This cannot be overlooked and is a factor in deteriorating the video deck's playback image.
本発明は上記の欠点を解消し、容易な方法でリ
ード線と巻線との間の信号の混入を減少させるこ
とを目的とする。 The present invention aims to overcome the above-mentioned drawbacks and to reduce the signal contamination between the leads and the windings in a simple manner.
本発明は前記の目的を達成するために、各チヤ
ンネルリード線と巻線が交差するところで該リー
ド線と該巻線の間に非磁性体導電性板をはさみ、
前記のリード線と巻線の間で発生する磁路を遮断
することにより、リード線と巻線との間の信号の
混入を減少させるものである。 In order to achieve the above object, the present invention sandwiches a non-magnetic conductive plate between each channel lead wire and the winding wire at the intersections of the channel lead wires and the winding wires,
By blocking the magnetic path generated between the lead wire and the winding, the mixing of signals between the lead wire and the winding is reduced.
以下、図面に基づいて詳細に説明する。第４図
は本発明に係る一実施例の平面図であり、第５図
は第４図のＡ−Ａ断面図であり、第６図は第４図
のＢ−Ｂ断面図である。この一実施例は３チヤン
ネル用ロータリートランスであり、各チヤンネル
の巻線２１〜２３が施されており、それぞれの巻
線のリード線２４〜２６が引き出されている。こ
のリード線２４〜２６を引き出す為のスリツト溝
２８が巻線用溝２９より低く設けてあり、前記ス
リツト溝を介してリード線を引き出す。この際、
チヤンネル用巻線とリード線とが交差する部分に
おいて、非磁性導電性板２７を巻線とリード線の
間にはさんでいる。また、第７図に別の実施例に
おけるＡ−Ａ断面図を示す。非磁性導電性板３０
は固定用突起部３１をもち、断面がＴ型をしてい
る。また、このような固定用突起部は中央ではな
く両側に設けるなど、自在に設けることは自由で
あり、材質も上部平板部と同一と限る必要もな
い。 Hereinafter, a detailed description will be given based on the drawings. 4 is a plan view of one embodiment of the present invention, FIG. 5 is a sectional view taken along line AA in FIG. 4, and FIG. 6 is a sectional view taken along line BB in FIG. 4. This embodiment is a three-channel rotary transformer, in which windings 21 to 23 of each channel are provided, and lead wires 24 to 26 of the respective windings are drawn out. A slit groove 28 for drawing out the lead wires 24 to 26 is provided lower than the winding groove 29, and the lead wire is drawn out through the slit groove. On this occasion,
At a portion where the channel winding and the lead wire intersect, a nonmagnetic conductive plate 27 is sandwiched between the winding wire and the lead wire. Further, FIG. 7 shows a sectional view taken along the line AA in another embodiment. Non-magnetic conductive plate 30
has a fixing protrusion 31 and has a T-shaped cross section. Furthermore, such fixing protrusions can be freely provided, such as on both sides instead of in the center, and the material does not have to be the same as that of the upper flat plate part.
以上詳記した如く、本発明によると、巻線とリ
ード線との間に非磁性導電性板をはさむことによ
り、巻線とリード線との間の信号の混入を阻止す
ることが可能となり、ロータリートランスの特性
を向上させ、ビデオデツキの再生画像の品質を向
上させるものである。 As detailed above, according to the present invention, by sandwiching a non-magnetic conductive plate between the winding wire and the lead wire, it is possible to prevent signals from mixing between the winding wire and the lead wire. This improves the characteristics of the rotary transformer and improves the quality of the video deck's playback images.
第１図は従来のロータリートランスの平面図で
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
発明に係る一実施例の平面図であり、第５図は第
４図のＣ−Ｃ断面図であり、第６図は第４図のＤ
−Ｄ断面図であり、第７図は本発明の別の実施例
におけるＣ−Ｃ断面図である。
１１，１２，１３，２１，２２，２３……巻
線、１４，１５，１６，２４，２５，２６……リ
ード線、２７，３０……非磁性体導電性板。
Fig. 1 is a plan view of a conventional rotary transformer, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is a cross-sectional view taken along line B-B in Fig. 1, and Fig. 4 is a cross-sectional view taken along line B-B in Fig. 1. 5 is a plan view of an embodiment according to the present invention, FIG. 5 is a sectional view taken along line CC in FIG. 4, and FIG.
-D sectional view, and FIG. 7 is a CC sectional view in another embodiment of the present invention. 11, 12, 13, 21, 22, 23... Winding wire, 14, 15, 16, 24, 25, 26... Lead wire, 27, 30... Non-magnetic conductive plate.
Claims (1)
両対向面には同心円状の溝が設けられているロー
タリートランスにおいて、各チヤンネル溝に巻線
を施し、該巻線のリード線を溝の設けられた面に
設けたスリツト溝により引き出す際、該リード線
と他チヤンネルの巻線とが交差する部分に非磁性
体導電性板を前記リード線とチヤンネルの巻線と
の間にはさむことを特徴とするロータリートラン
ス。 ２ 特許請求の範囲第１項において、非磁性体導
電性板に固定用の突起部を設けたことを特徴とす
るロータリートランス。[Claims] 1. Consisting of opposing disc-shaped ferrite cores,
In a rotary transformer in which concentric grooves are provided on both opposing surfaces, when winding is applied to each channel groove and the lead wire of the winding is pulled out through a slit groove provided on the grooved surface, the A rotary transformer characterized in that a non-magnetic conductive plate is sandwiched between the lead wire and the winding of another channel at a portion where the lead wire and the winding of another channel intersect. 2. The rotary transformer according to claim 1, characterized in that a fixing protrusion is provided on the non-magnetic conductive plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58003763A JPS59127815A (en) | 1983-01-13 | 1983-01-13 | Rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58003763A JPS59127815A (en) | 1983-01-13 | 1983-01-13 | Rotary transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59127815A JPS59127815A (en) | 1984-07-23 |
| JPH0218568B2 true JPH0218568B2 (en) | 1990-04-26 |
Family
ID=11566206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58003763A Granted JPS59127815A (en) | 1983-01-13 | 1983-01-13 | Rotary transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59127815A (en) |
-
1983
- 1983-01-13 JP JP58003763A patent/JPS59127815A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59127815A (en) | 1984-07-23 |
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