Samsung Electro-mechanics Co., Ltd.

Yeol Choi

Young Sun Yoo

Ho Jun Yoo

Young-Sun Yoo

Viatcheslav Smirnov

Pyo Jae Kim

Kyung-Seob Shin

Jun Kyu Park

Nam Seok Kim

A motor may include: a rotor case having a coupling hook extending downward in an axial direction, secured to a shaft, and performing rotation; a sleeve supporting the shaft; and a sleeve housing having a projection provided at a front end portion of an upper part thereof in the axial direction and a guide passage provided along the projection such that the coupling hook moves along the guide passage while the sleeve is pressed and inserted into an inner circumferential surface thereof.

Motor with rotor case having coupling component

Disclosed herein is a slip prevention member for a turntable. A friction layer prevents a slip of a disk placed on an upper surface thereof. A hardness reinforcing layer is provided under the lower surface of the friction layer. An adhesive layer is provided under the lower surface of the hardness reinforcing layer. A releasable sheet is attached to the lower surface of the adhesive layer. The slip prevention member reduces use of environmentally toxic material and uses the hardness reinforcing layer, thus preventing occurrence of vibrations and noise which may be induced when the hardness of the slip prevention member is relatively low.

Slip prevention member for turntables

There is provided a motor including a sleeve supporting a shaft; a sleeve holder allowing the sleeve to be fixed to an inner circumferential surface thereof and having a coupling rack protruding downwardly from a bottom surface in an axial direction; and a base plate having a sleeve holder insertion hole provided therein such that the sleeve holder insertion hole has a curvature defined by an inner circumferential surface thereof, in contact with an outer circumferential surface of the coupling rack of the sleeve holder, and a bottom surface thereof, in contact with a coupling portion of the coupling rack.

Motor

Disclosed herein is provided a spindle motor and a disk driver having the same. There is provided a spindle motor including: a sleeve rotatably supporting a shaft; a bush combined with the top portion of the shaft to be rotated together with the shaft; a rotor case including a cylindrical wall part combined with the outer peripheral surface of the bush; an air flow spreading part formed on the axial bottom part of the bush and spreading the air flow generated between the shaft and the sleeve to the radial outer side when the shaft is rotated; and a sealing part formed on the axial bottom portion of the bush and formed between the cylindrical wall part and the air flow spreading part to seal oil when the shaft is rotated.

Spindle motor and disk driver having the same

A disk chucking device is disclosed. In accordance with an embodiment of the present invention, the disk chucking device coupling a disk to a rotor of a motor such that the disk can be mounted and demounted can include a boss, which is coupled with the rotor, a first elastic body, which includes an inner circumference surrounding the boss and in which the first elastic body has elasticity in a radial direction from a center of the boss, a plurality of second elastic bodies, which are radially disposed from the first elastic body and in which the plurality of second elastic bodies are elastically supported by the first elastic body, and a plurality of chuck pins, which press the disk and in which each of the plurality of chuck pins is elastically supported by each of the plurality of second elastic bodies.

Disk chucking device for alignment of the rotational center of a disk with the center of the disk chucking device

A chuck pin and a disk chucking device equipped with the chuck pin are disclosed. In accordance with an embodiment of the present invention, the chuck pin fastening a disk by compressing an inner circumference of the disk includes a protruding part, which presses against the disk, and a body, in which a front part of the body is coupled to the protruding part and an inclined part is formed on a lower surface of the body such that the front part of the body can be rotated about a back part of the body as a pivot when pressure is applied to an upper surface of the protruding part. With this configuration, the chuck pin is kept from floating when the disk rotates, and the chuck pin can be easily tilted downward when the disk is loaded.

Chuck pin and disk chucking device having the same

A motor is disclosed. In accordance with an embodiment of the present invention, the motor includes a stator and a rotor, which is supported by the stator such that the rotor rotates. Here, the rotor includes a rotational axis, which is supported by the stator such that the rotational axis rotates, a rotating body, which rotates together with the rotational axis, and a hub, which has a ring-shaped body and a protruding part. Here, the ring-shaped body is interposed between the rotational axis and the rotating body, and the protruding part extends an outer circumferential surface of the ring-shaped body coupled to the rotating body. Thus, the motor can improve the coupling strength between the rotational axis and the rotating body, securing the rotating rotor's stability.

Growing community of inventors

Gyunggi-do, South Korea

Yeol Choi