KR950010304A - Spindle motor - Google Patents

Spindle motor Download PDF

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Publication number
KR950010304A
KR950010304A KR1019930017772A KR930017772A KR950010304A KR 950010304 A KR950010304 A KR 950010304A KR 1019930017772 A KR1019930017772 A KR 1019930017772A KR 930017772 A KR930017772 A KR 930017772A KR 950010304 A KR950010304 A KR 950010304A
Authority
KR
South Korea
Prior art keywords
motor shaft
hub
magnet
bearing
motor
Prior art date
Application number
KR1019930017772A
Other languages
Korean (ko)
Other versions
KR100193557B1 (en
Inventor
홍원기
Original Assignee
윤종용
삼성전기 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 윤종용, 삼성전기 주식회사 filed Critical 윤종용
Priority to KR1019930017772A priority Critical patent/KR100193557B1/en
Publication of KR950010304A publication Critical patent/KR950010304A/en
Application granted granted Critical
Publication of KR100193557B1 publication Critical patent/KR100193557B1/en

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Abstract

이 발명은 스핀들 모터에 관한 것으로서, 모터축에 삽입고정된 볼 베어링에 의해 허브가 회전되면서 이 베어링에 의해 소음이 증폭되고 부적절한 베어링 예압으로 인한 심한 진동이 발생되었으며, 베어링 자체에 의한 마찰로 인해 전류의 소모가 증대되고 궁극적으로 베어링의 사용으로 원가와 작업공정이 증가되는 종래의 문제점을 해결하고자 한다.The present invention relates to a spindle motor, in which a hub is rotated by a ball bearing inserted into a motor shaft, the noise is amplified by this bearing, and severe vibration is generated due to an improper bearing preload, and a friction caused by the bearing itself causes a current. To solve the conventional problem of increased consumption and ultimately increased cost and work process due to the use of bearings.

이를 해결하기 위하여 이 발명은, 모터축내에 마그네트를 삽입하고 이 모터축 둘레에 자성유체를 흡착시킨 후에 허브를 삽입시키므로 모터축과 허브사이에 유막이 형성되어 허브가 회전시 소음, 진동및 마찰, 마모가 감소됨은 물론 고가의 베어링이 사용되지 않아 획기적인 원가절감이 있게 되어 고품질 다량생산에 적합한 것이다.In order to solve this problem, the present invention inserts a magnet into the motor shaft, adsorbs a magnetic fluid around the motor shaft, and then inserts a hub so that an oil film is formed between the motor shaft and the hub. In addition to reduced wear, expensive bearings are not used, resulting in significant cost savings, making them suitable for high-quality mass production.

Description

스핀들 모터Spindle motor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 이 발명에 따른 스핀들 모터를 나타낸 단면도.2 is a cross-sectional view of a spindle motor according to the present invention.

제3도는 이 발명의 모터축과 허브사이의 회전부를 나타낸 상세 단면도.3 is a detailed sectional view showing a rotating part between the motor shaft and the hub of the present invention.

제4도는 이 발명의 요부 분해 사시도이다.4 is an exploded perspective view of main parts of the present invention.

Claims (2)

허브 중앙에 모터축을 삽입하고 이 모터축 하단에 코일이 권선된 스테이터 코어가 고정설치된 스테이터와, 상기 모터축에 복수 설치된 베어링에 의해 회전 가능하게 허브가 설치되고 상기 허브 내측에 마그네트가 장착된 로우터로 구성되어 있는 스핀들 모터에 있어서, 상기 모터축내에 자기회로를 갖도록 마그네트가 삽입설치되고 상기 마그네트와 작용하여 유막이 형성되도록 상기 모터측의 외주면에 자성유체가 도포되어 있는 스핀들 모터.A stator with a motor shaft inserted in the center of the hub and a stator core with a coil wound around the lower end of the motor shaft, and a rotor with a hub installed rotatably by a plurality of bearings mounted on the motor shaft and a magnet mounted inside the hub. A spindle motor comprising: a spindle motor in which a magnetic fluid is applied to an outer circumferential surface of the motor side such that a magnet is inserted to have a magnetic circuit in the motor shaft, and an oil film is formed by acting with the magnet. 제1항에 있어서, 상기 마그네트가, 복수의 마그네트로 되고 상기 마그네트사이에 원판형링이 개재되어 있는 스핀들 모터.The spindle motor according to claim 1, wherein the magnet is composed of a plurality of magnets and a disc shaped ring is interposed between the magnets. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930017772A 1993-09-06 1993-09-06 Spindle motor KR100193557B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930017772A KR100193557B1 (en) 1993-09-06 1993-09-06 Spindle motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017772A KR100193557B1 (en) 1993-09-06 1993-09-06 Spindle motor

Publications (2)

Publication Number Publication Date
KR950010304A true KR950010304A (en) 1995-04-28
KR100193557B1 KR100193557B1 (en) 1999-06-15

Family

ID=66817243

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930017772A KR100193557B1 (en) 1993-09-06 1993-09-06 Spindle motor

Country Status (1)

Country Link
KR (1) KR100193557B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010064335A (en) * 1999-12-29 2001-07-09 송재인 Motor for driving optical disk

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101133326B1 (en) 2010-08-20 2012-04-05 삼성전기주식회사 Bearing assembly and motor including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010064335A (en) * 1999-12-29 2001-07-09 송재인 Motor for driving optical disk

Also Published As

Publication number Publication date
KR100193557B1 (en) 1999-06-15

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