JPS6355131U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第６図は本考案の一実施例を示すも
ので、第１図は上半部を断面にした全体の側面図
、第２図は要部の縦断側面図、第３図は同要部の
第２図の―線に沿つた断面図、第４図及び第
５図はトルク検出原理を示す図、第６図は動トル
ク検出特性図である。また、第７図は従来例を示
す縦断側面図である。 図中、１５は回転電機本体、１６はフレーム、
１７及び１８は軸受ブラケツト、２１は出力軸、
２４及び２５は磁性金属薄帯、２６は支持筒体、
２７は磁心ホルダ、２８及び２９は検出磁心、２
８ａ及び２９ａは励磁コイル、２８ｂ及び２９ｂ
は検出コイル、３０はモールド部材を示す。 Figures 1 to 6 show an embodiment of the present invention, in which Figure 1 is a side view of the whole with the upper half sectioned, Figure 2 is a vertical side view of the main part, and Figure 3 is a side view of the main part. A cross-sectional view of the main part taken along the line -- in FIG. 2, FIGS. 4 and 5 are diagrams showing the torque detection principle, and FIG. 6 is a dynamic torque detection characteristic diagram. Moreover, FIG. 7 is a longitudinal sectional side view showing a conventional example. In the figure, 15 is the rotating electric machine body, 16 is the frame,
17 and 18 are bearing brackets, 21 is an output shaft,
24 and 25 are magnetic metal ribbons, 26 is a support cylinder,
27 is a magnetic core holder, 28 and 29 are detection magnetic cores, 2
8a and 29a are exciting coils, 28b and 29b
indicates a detection coil, and 30 indicates a mold member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転電機本体の出力軸の外周面に固定された磁
歪を有する磁性金属薄帯と、前記回転電機本体の
外面に前記磁性金属薄帯を包囲するように取付け
られた非磁性体製の磁心ホルダと、この磁心ホル
ダ内に前記磁性金属薄帯と非接触状に設けられた
検出磁心と、この検出磁心に前記磁性金属薄帯を
励磁するように巻装された励磁コイルと、前記検
出磁心に前記磁性金属薄帯の磁気特性変化に応じ
た検出電圧を発生するように巻装された検出コイ
ルと、前記磁心ホルダ内に前記検出磁心、励磁コ
イル及び検出コイルをモールドするように充填さ
れたモールド部材とを具備して成る回転電機。 a magnetic metal ribbon having magnetostriction fixed to the outer circumferential surface of an output shaft of the rotating electrical machine main body; and a magnetic core holder made of a non-magnetic material attached to the outer surface of the rotating electrical machine main body so as to surround the magnetic metal ribbon. , a detection core provided in the magnetic core holder in a non-contact manner with the magnetic metal ribbon; an excitation coil wound around the detection core so as to excite the magnetic metal ribbon; A detection coil wound so as to generate a detection voltage according to a change in the magnetic properties of the magnetic metal ribbon, and a mold member filled in the magnetic core holder so as to mold the detection core, excitation coil, and detection coil. A rotating electric machine comprising: