JPH0179376U

JPH0179376U -

Info

Publication number: JPH0179376U
Application number: JP1987174712U
Authority: JP
Priority date: 1987-11-16
Filing date: 1987-11-16
Publication date: 1989-05-29

Description

[Brief explanation of drawings]

第１図は本考案のフアンモータの一実施例を示
す半断面図、第２図は第１図のフアンモータにお
ける使用例を説明する要部部分半断面図、第３図
は従来のフアンモータを示す半断面図、第４図は
第３図のフアンモータにおける使用例を説明する
図である。１……軸受ケーシング、３……磁心、５……駆
動コイル、９，１１……オイルレスメタル、１３
，１５……保油部材（保油フエルト）、１７……
ロータシヤフト、１９……固定部材（ブツシユ）
、２１……ロータヨーク、２３……回転フアン、
２５……主マグネツト、２７……当接板、２９…
…貯油壁、３９……回路基板、４９……フランジ
、５１……オイル溜め部。 Fig. 1 is a half-sectional view showing an embodiment of the fan motor of the present invention, Fig. 2 is a half-sectional view of a main part explaining an example of use in the fan motor of Fig. 1, and Fig. 3 is a conventional fan motor. FIG. 4 is a diagram illustrating an example of use in the fan motor of FIG. 3. 1... Bearing casing, 3... Magnetic core, 5... Drive coil, 9, 11... Oil-less metal, 13
, 15... Oil retaining member (oil retaining felt), 17...
Rotor shaft, 19...Fixing member (button)
, 21...rotor yoke, 23...rotating fan,
25... Main magnet, 27... Contact plate, 29...
... Oil storage wall, 39 ... Circuit board, 49 ... Flange, 51 ... Oil reservoir section.

Claims

[Scope of utility model registration request]

A cylindrical bearing casing, an oil-less metal fitted coaxially into both hollow ends of the bearing casing, a magnetic core attached to the casing and around which a drive coil is wound, and a magnetic core that is pivotally supported by the oil-less metal. a rotor shaft, a rotor yoke having a main magnet facing the drive coil and disposed so as to cover the magnetic core, and a fixing member formed on the outer periphery of the rotor shaft and fixing the rotor yoke to the rotor shaft. , a rotating fan attached to the rotor shaft that extends through the fixed member; an oil retaining member impregnated with oil and arranged so as to contact at least the oilless metal on the fixed member side; In the fan motor, the fan motor includes a cylindrical oil storage wall that is arranged upright in the direction of the rotating fan so as to surround the outer periphery of the oil storage member, and that suppresses oil from flowing out from the oil storage member. A fan motor characterized in that an annular oil reservoir for collecting oil transmitted from the oil-less metal on the fixed member side via the shaft is recessed in a portion facing the oil-less metal.