KR970063873A

KR970063873A - The case rotor of the spindle motor

Info

Publication number: KR970063873A
Application number: KR1019960005280A
Authority: KR
Inventors: 유승완
Original assignee: 이형도; 삼성전기 주식회사
Priority date: 1996-02-29
Filing date: 1996-02-29
Publication date: 1997-09-12

Abstract

본 발명은 스핀들 모터의 케이스 로터에 대한 것으로 발명의 주된 목적은 케이스 로터와 팬을 일체로 성형하므로서 동심도가 보장될 수 있도록 하는데 있고, 또 한편으로는 고온 및 저온의 환경에서도 분리가 되지 않도록 하여 제품의 상품성을 높이는데 있으며, 또 다른 한편으로는 제조 공정을 크게 단축하여 생산성을 향상시키고자 하는데 목적이 있다.The present invention relates to a case rotor of a spindle motor. The main object of the present invention is to form a case rotor and a fan integrally so that concentricity can be ensured, and on the other hand, On the one hand, and on the other hand, to improve the productivity by greatly shortening the manufacturing process.

이를 위한 특징적인 구성은 베이스부재상에 고정된 내부의 스테이터, 이 스테이터의 중앙에서 베어링으로 지지된 회전축, 상기 회전축 상단에 케이스 로터를 축설하되, 그 내부에 부착된 마그네트가 상기한 스테이터의 자장에 의해 회전하도록 구성된 통상의 모터에 있어서, 상기한 케이스 로터의 외주면에 다수의 요홈을 형성한 후, 그 외경에 인서트 몰딩의 방법으로 팬을 결합하되, 상기한 요홈에 의해 팬의 내면에 돌기가 형성되어 상호 결합되도록 한 것이다.A characteristic feature of this structure is that an internal stator fixed on a base member, a rotating shaft supported by bearings at the center of the stator, and a case rotor disposed on an upper end of the rotating shaft, wherein a magnet attached inside the stator has a magnetic field A plurality of grooves are formed on an outer circumferential surface of the case rotor and then a fan is coupled to the outer circumference of the case rotor by a method of insert molding, and protrusions are formed on the inner surface of the fan by the grooves So that they are mutually combined.

Description

The case rotor of the spindle motor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 구조를 보인 모터의 단면도.FIG. 1 is a cross-sectional view of a motor showing the structure of the present invention. FIG.

제2도는 본 발명의 요부 구성을 보인 확대 단면도.FIG. 2 is an enlarged cross-sectional view showing the essential structure of the present invention. FIG.

제3도는 본 발명의 구조를 보인 케이스 로터의 평단면도.FIG. 3 is a plan sectional view of the case rotor showing the structure of the present invention. FIG.

제4도는 본 발명의 케이스 로터의 요홈을 보인 예시도.FIG. 4 is an exemplary view showing the groove of the case rotor of the present invention. FIG.

Claims

An inner stator 1 fixed on the base member 2, a rotating shaft 4 supported by the bearing 3 at the center of the stator 1, and a case rotor 5 disposed above the rotating shaft 4 In the conventional spindle motor in which the magnet 7 attached to the inside thereof is configured to rotate by the magnetic field of the stator 1, a plurality of grooves 51 are formed on the outer circumferential surface of the case rotor 5 The protrusions 61 are formed on the inner surface of the fan 6 by the grooves 51 to be engaged with each other. The case rotor of the motor.

2. The spindle motor as claimed in claim 1, wherein a plurality of recesses are formed on the outer periphery of the case rotor (5), and the recesses are arranged in an equally divided radial pattern to ensure concentricity. .

2. The spindle motor according to claim 1, wherein a plurality of recesses are formed on the outer periphery of the case rotor (5), and the recesses (51) are formed in a circular shape so that the recesses Rotor.

The case rotor according to claim 1, wherein a plurality of recesses are formed in the outer periphery of the case rotor (5), and the recesses (51) are formed in a vertically long rectangular shape to double the fastening force with the fan Wherein the spindle motor rotates in a clockwise direction.

※ Note: It is disclosed by the contents of the first application.