JPH0426509U

JPH0426509U -

Info

Publication number: JPH0426509U
Application number: JP6779890U
Authority: JP
Priority date: 1990-06-26
Filing date: 1990-06-26
Publication date: 1992-03-03

Description

[Brief explanation of drawings]

第１図は本考案の同軸形ロータリートランスの
一実施例による斜視図、第２図は同断面図、第３
図は同インナー側コイルの斜視図、第４図は同要
部の正面図、第５図は同ロータリートランスの電
気的回路図、第６図は他の実施例のインナー側コ
イルの斜視図、第７図は同要部の正面図、第８図
は同ロータリートランスの電気的回路図、第９図
は従来のインナー側コイルの斜視図、第１０図、
第１１図は同要部の正面図、第１２図は従来のロ
ータリートランスの電気的回路図である。７……インナー側コイル、８……アウター側コ
イル、９……円筒形コア、１０……信号コイル用
円周溝、１１……シヨートリング用円周溝、１２
……縦溝、１３……信号コイル、１４……シヨー
トリングコイル、１５……端子板、１６……端子
、１７……円筒形コア、１８……信号コイル用円
周溝、１９……縦溝、２０……信号コイル、２１
……端子板、２２……端子。 Fig. 1 is a perspective view of an embodiment of the coaxial rotary transformer of the present invention, Fig. 2 is a sectional view of the same, and Fig.
The figure is a perspective view of the inner coil, FIG. 4 is a front view of the main parts, FIG. 5 is an electrical circuit diagram of the rotary transformer, and FIG. 6 is a perspective view of the inner coil of another embodiment. Fig. 7 is a front view of the main parts, Fig. 8 is an electrical circuit diagram of the rotary transformer, Fig. 9 is a perspective view of the conventional inner coil, Fig. 10,
FIG. 11 is a front view of the main parts, and FIG. 12 is an electrical circuit diagram of a conventional rotary transformer. 7... Inner side coil, 8... Outer side coil, 9... Cylindrical core, 10... Circumferential groove for signal coil, 11... Circumferential groove for shot ring, 12
... Vertical groove, 13 ... Signal coil, 14 ... Short ring coil, 15 ... Terminal plate, 16 ... Terminal, 17 ... Cylindrical core, 18 ... Circumferential groove for signal coil, 19 ... Vertical groove, 20...Signal coil, 21
...Terminal board, 22...Terminal.

Claims

[Scope of utility model registration request]

An inner coil and an outer coil each having a plurality of circumferential grooves for signal coils wound with mutually opposing signal coils on the inner and outer peripheral surfaces of a cylindrical core facing each other in close proximity to each other,
A shot ring circumferential groove is provided between the signal coil circumferential grooves of the cylindrical core of at least the inner coil, and the same coated copper wire as the signal coil is used in the shot ring circumferential groove, with two or more turns per groove. A coaxial rotary transformer in which a short ring coil is formed by winding a wire and connecting the beginning and end of the winding to a signal coil terminal or an independent terminal.