JPH0222063U - - Google Patents

Description

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

第１図は本考案の一実施例としての電動機を一
部を省略して示す断面図、第２図は同じく本考案
の一実施例としての電動機を一部を省略して示す
断面図、第３図は本考案の一実施例としての電動
機を一部を省略して示す断面図、第４図は同じく
本考案の一実施例としての電動機を一部を省略し
て示す断面図、第５図は同じく本考案の一実施例
としての電動機を一部を省略して示す断面図、第
６図は従来例としての電動機を一部を省略して示
す断面図、第７図は従来の問題点を示す説明図で
ある。図において、１は回転軸、２はステーター
コアー、３は駆動用磁石、４はローターケース、
６は軸受ホルダー、７，８は軸受、１０は駆動用
コイル、１１，１２は永久磁石、１３はスラスト
スペーサ、１４は焼結メタルである。なお、図中
同一符号は、同一又は相当部分を示す。 FIG. 1 is a cross-sectional view showing an electric motor as an embodiment of the present invention with some parts omitted; FIG. 2 is a cross-sectional view showing a motor as an embodiment of the present invention with some parts omitted; 3 is a cross-sectional view showing an electric motor as an embodiment of the present invention with a part omitted; FIG. 4 is a cross-sectional view showing a motor as an embodiment of the present invention with a part omitted; The figure is a sectional view showing a motor as an embodiment of the present invention with a part omitted, FIG. 6 is a sectional view showing a conventional motor with a part omitted, and FIG. 7 is a sectional view showing a conventional problem. It is an explanatory view showing points. In the figure, 1 is a rotating shaft, 2 is a stator core, 3 is a driving magnet, 4 is a rotor case,
6 is a bearing holder, 7 and 8 are bearings, 10 is a driving coil, 11 and 12 are permanent magnets, 13 is a thrust spacer, and 14 is a sintered metal. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

【実用新案登録請求の範囲】 (1) 回転軸を軸受を介して回転可能に内挿し、
外周にはステーターコアーを固定した軸受ホルダ
ーと、上記回転軸に一体化され、上記ステーター
コアーに半径方向の間隙を持つて駆動用磁石を対
向状に保持したローターケースとを備え、上記軸
受ホルダー側と回転軸側との間には磁石の反発力
が回転軸の軸方向に常時付勢されていることを特
徴とする電動機。 (2) 回転軸を少なくとも一つが焼結メタルで構
成された複数の軸受を介して回転可能に内挿し、
外周にはステーターコアーを固定した軸受ホルダ
ーと、上記回転軸に一体化され、上記ステーター
コアーに半径方向の間隙を持つて駆動用磁石を対
向状に保持したローターケースと、上記軸受ホル
ダー側と回転軸側との間に回転軸の軸方向の反発
力を作用させる永久磁石とを備えてなる電動機。[Claims for Utility Model Registration] (1) A rotating shaft is rotatably inserted through a bearing,
The outer periphery is equipped with a bearing holder to which the stator core is fixed, and a rotor case that is integrated with the rotating shaft and holds driving magnets facing the stator core with a gap in the radial direction. An electric motor characterized in that a repulsive force of a magnet is always applied in the axial direction of the rotating shaft between the rotating shaft and the rotating shaft. (2) A rotary shaft is rotatably inserted through a plurality of bearings, at least one of which is made of sintered metal,
On the outer periphery, there is a bearing holder that fixes the stator core, a rotor case that is integrated with the rotating shaft and holds a driving magnet facing the stator core with a radial gap, and a rotor case that rotates with the bearing holder side. An electric motor equipped with a permanent magnet that exerts a repulsive force in the axial direction of the rotating shaft between the shaft and the shaft.