JPH0260479U

JPH0260479U -

Info

Publication number: JPH0260479U
Application number: JP13813088U
Authority: JP
Priority date: 1988-10-21
Filing date: 1988-10-21
Publication date: 1990-05-02

Description

[Brief explanation of drawings]

第１図は本考案の一実施例における超細形ブラ
シレスモータの断面図、第２図はシート状コイル
の展開平面図、第３図はシート状コイルを円筒状
にまるめた斜視図、第４図は従来のインナーロー
タタイプのブラシレスモータの断面図である。１ａ……シヤフト、２ａ，３ａ……スリーブ軸
受、４ａ……ヨーク、５ａ……ブラケツト、６ａ
……永久磁石ロータ、７ａ……スロツトレス積層
コア、８ａ……シート状コイル、９……スペーサ
。 Fig. 1 is a sectional view of an ultra-slim brushless motor according to an embodiment of the present invention, Fig. 2 is a developed plan view of a sheet-like coil, Fig. 3 is a perspective view of a sheet-like coil rolled into a cylindrical shape, and Fig. 4 is a sectional view of an ultra-slim brushless motor according to an embodiment of the present invention. The figure is a sectional view of a conventional inner rotor type brushless motor. 1a...Shaft, 2a, 3a...Sleeve bearing, 4a...Yoke, 5a...Bracket, 6a
... Permanent magnet rotor, 7a ... Slotless laminated core, 8a ... Sheet-like coil, 9 ... Spacer.

Claims

[Claims for Utility Model Registration] (1) A shaft, a bearing that rotatably supports the shaft, a permanent magnet rotor having a plurality of pairs of magnetic poles disposed on the shaft, and a gear in the radial direction of the rotor. A slotless laminated core that faces each other and has a hollow part in the center, a plurality of approximately rectangular sheet pattern coils connected together, a sheet coil provided with an input terminal, a flatket holding one bearing, and the other. a yoke for holding the bearing and housing the laminated core and the bracket, the sheet coil is rolled into a cylindrical shape, and the inner periphery of the laminated core is provided with a gap in the radial direction facing the permanent magnet rotor. Ultra-thin brushless motor installed in the. (2) The sheet-like coil has an inner diameter of 3 mm to 1 mm.
2. The ultra-slim brushless motor according to claim 1, wherein the brushless motor is rounded into a cylindrical shape within a range of 0 mm. (3) The ultra-slim brushless motor according to claim 1, wherein the sheet-like coil has a thickness in a range of 0.15 mm to 0.35 mm. (4) Claim 1, wherein the sheet-like coil is inserted into or held by pressure in a ring-shaped U groove or step provided in a spacer having both end surfaces or one end surface made of synthetic resin.
The ultra-slim brushless motor described.