JPH01113558U

JPH01113558U -

Info

Publication number: JPH01113558U
Application number: JP718188U
Authority: JP
Priority date: 1988-01-21
Filing date: 1988-01-21
Publication date: 1989-07-31

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す小型モータ
の断面図、第２図は第１図の左側面図、第３図お
よび第４図は第１実施例の作用を示す概略図、第
５図は第２実施例のロータコアと永久磁石との関
係を示す概略図、第６図は軸の両側を引き寄せる
方向を上下逆にした場合の概略図、第７図は第３
実施例を示す概略図、第８図は第４実施例を示す
概略図、第９図は第５実施例の概略図、第９図
は第９図の左側面図、第１０図は第６実施例
の斜視図、第１１図は第７実施例の斜視図、第
１１図は第１１図の永久磁石６および７の正
面図、第１２図は第８実施例の概略図、第１３図
は第９実施例の概略図、第１４図はロータコアお
よび軸の両側を逆方向の横に引き寄せる場合の斜
視図、第１５図，，，は第１４図に示す
方向にロータコアおよび軸を引き寄せる手段を示
す永久磁石６と７の正面図である。１…ヨーク、２，３…軸受、４…軸、５…ロー
タコア、６，７…永久磁石。 FIG. 1 is a sectional view of a small motor showing a first embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIGS. 3 and 4 are schematic diagrams showing the operation of the first embodiment. Fig. 5 is a schematic diagram showing the relationship between the rotor core and permanent magnets of the second embodiment, Fig. 6 is a schematic diagram when the direction in which both sides of the shaft are drawn is upside down, and Fig. 7 is a schematic diagram showing the relationship between the rotor core and the permanent magnets of the second embodiment.
8 is a schematic diagram showing the fourth embodiment, FIG. 9 is a schematic diagram of the fifth embodiment, FIG. 9 is a left side view of FIG. 9, and FIG. 10 is a schematic diagram showing the sixth embodiment. FIG. 11 is a perspective view of the seventh embodiment, FIG. 11 is a front view of the permanent magnets 6 and 7 in FIG. 11, FIG. 12 is a schematic diagram of the eighth embodiment, and FIG. 13 is a perspective view of the embodiment. 14 is a schematic diagram of the ninth embodiment, FIG. 14 is a perspective view of the case where both sides of the rotor core and shaft are pulled sideways in opposite directions, and FIGS. It is a front view of permanent magnets 6 and 7 showing. 1... Yoke, 2, 3... Bearing, 4... Shaft, 5... Rotor core, 6, 7... Permanent magnet.

Claims

[Claims for Utility Model Registration] (1) A motor with a two-pole iron core, which creates a magnetic difference between the N-pole magnet and the S-pole magnet, draws the rotor core to one side, and connects the shaft and bearing. A small motor characterized by a structure that eliminates rattling between the parts and reduces noise. (2) The difference in magnetism between the N-pole magnet and the S-pole magnet can be determined by a grade difference based on the strength of magnetic flux, a gap difference between the magnet and the rotor core, or by providing holes, notches, depressions, etc. in the magnet. Claim (1)
) small motors.