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US 7,923,876 B2Granted
Motor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsViatcheslav Smirnov, Nam-Seok Kim, Dong-Yeon Shin
Life of this patent
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Abstract
A motor is disclosed. The motor in accordance with an embodiment of the present invention can include: a shaft; a bearing supporting the shaft to rotate; a thrust plate supporting a lower end of the shaft a boss joined to the shaft and having a ring-shaped groove on a side facing the bearing; and a rotor joined to the boss.
Claims1
A motor comprising:
- a shaft having a hole therein;
- a bearing configured to support the shaft to rotate and containing lubricating oil;
- a thrust plate configured to support a lower end of the shaft;
- a boss joined to the shaft and having a ring-shaped groove on a side facing the bearing, such that the ring-shaped groove is formed on the path of the lubricating oil flowing out from the bearing, and interrupts the flow of the lubricating oil by receiving the flowing lubricating oil;
- and
- a rotor joined to the boss,
- wherein a protruding part is formed in the middle of the lower part of the boss, and the hole of the shaft receives the protruding part of the boss such that a hollow part is formed inside the shaft.
4 more elements
Dependencies are inferred from the claim text.