JPH02114910U

JPH02114910U -

Info

Publication number: JPH02114910U
Application number: JP2275789U
Authority: JP
Priority date: 1989-02-28
Filing date: 1989-02-28
Publication date: 1990-09-14

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例のロータートラン
スの部品構成を示し、ａはローターコアの外観斜
視図で、ｂはロータートランス用ボビンの外観斜
視図である。第２図は、第１図に示すボビンにコ
イル巻線を施した状態を示す側面図。第３図は、
本考案の一実施例の同軸型ロータリートランスの
部品の断面図で、ａはロータリートランス用コア
及びボビンの断面図、ｂはステータートランス用
コアの断面図である。第４図は、従来の同軸型ロ
ータリートランスの一例を示し、ａはロータート
ランスの断面図、ｂはステータトランスを示す断
面図である。１……ローターコア、２……ボビン、３，４，
５，６……コイル巻枠、７……（ボビンの）突起
部、８……ローターコアの溝、９……ボビンの溝
、１０……リード線からげ用突起、１１，１２，
２２……コイル、１３，１４……リード線、１５
……（ボビンのコイル巻枠の）角部、１６……ス
テーターコア、１７，１８，１９，２０……ステ
ーターコイル巻枠、２１……（従来の）ローター
コア。 FIG. 1 shows the component structure of a rotor transformer according to an embodiment of the present invention, in which a is a perspective view of a rotor core, and b is a perspective view of a bobbin for the rotor transformer. FIG. 2 is a side view showing a state in which the bobbin shown in FIG. 1 is wound with a coil. Figure 3 shows
1 is a sectional view of parts of a coaxial rotary transformer according to an embodiment of the present invention, in which a is a sectional view of a rotary transformer core and a bobbin, and b is a sectional view of a stator transformer core. FIG. 4 shows an example of a conventional coaxial rotary transformer, in which a is a sectional view of the rotor transformer and b is a sectional view of the stator transformer. 1...Rotor core, 2...Bobbin, 3, 4,
5, 6... Coil winding frame, 7... Protrusion (of bobbin), 8... Groove of rotor core, 9... Groove of bobbin, 10... Protrusion for connecting lead wire, 11, 12,
22... Coil, 13, 14... Lead wire, 15
... Corner (of the coil winding frame of the bobbin), 16 ... Stator core, 17, 18, 19, 20 ... Stator coil winding frame, 21 ... (Conventional) rotor core.

Claims

[Claims for Utility Model Registration] 1. A rotary transformer characterized in that a rotor transformer, which is an outer peripheral transformer of a coaxial rotary transformer, is composed of a rotor core and a bobbin. 2. The rotary transformer bobbin according to claim 1, characterized in that the bobbin has a protrusion for fitting into the rotor core. 3. The rotary transformer bobbin according to claim 1, characterized in that the bobbin has a structure in which the groove of the bobbin has a protrusion for hanging the lead wire so that the coil winding does not come loose. 4. The rotary transformer according to claim 1, wherein the rotor core has a groove on the inner diameter thereof which fits into the protrusion of the bobbin according to claim 2.