KR920020812A - Voice coil motor - Google Patents

Voice coil motor Download PDF

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Publication number
KR920020812A
KR920020812A KR1019910007156A KR910007156A KR920020812A KR 920020812 A KR920020812 A KR 920020812A KR 1019910007156 A KR1019910007156 A KR 1019910007156A KR 910007156 A KR910007156 A KR 910007156A KR 920020812 A KR920020812 A KR 920020812A
Authority
KR
South Korea
Prior art keywords
magnetic flux
voice coil
coil motor
peripheral
permanent magnet
Prior art date
Application number
KR1019910007156A
Other languages
Korean (ko)
Inventor
심준석
윤병상
Original Assignee
서주인
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 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR1019910007156A priority Critical patent/KR920020812A/en
Publication of KR920020812A publication Critical patent/KR920020812A/en

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Abstract

내용 없음No content

Description

보이스 코일 모터Voice coil motor

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

제2도는 본 발명에 따른 보이스 코일 모터의 구성을 보인 개략적 측단면도.Figure 2 is a schematic side cross-sectional view showing the configuration of the voice coil motor according to the present invention.

제3도는 본 발명에 따른 보이스 코일 모터의 또다른 구성을 보인 개략적 측단면도.Figure 3 is a schematic side cross-sectional view showing another configuration of the voice coil motor according to the present invention.

Claims (3)

통형으로서 축방향으로 이동 스트로크를 갖는 가동코일과, 그 가동코일의 축방향에 수직한 자속을 발생하는 영구자적 및 그 영구자석을 부착지지하는 동시에 그 자속의 폐회로를 이루는 요크부로 구성되는 보이스 코일 모터에 있어서, 상기 영구자석의 자속중 그 중앙부를 경유하는 중앙부 자속(C)(C')과 그 주변부를 경유하는 주변부자속(B)(B')에 대한 각각의 리턱던스가 거의 대등해지도륵 상기 영구자석과 상기 요크부재 상호간의 자속의 경로길이를 부분적으로 변화시켜 구성하여 된 것을 특징으로 하는 보이스 코일 모터.A voice coil motor comprising a movable coil having a moving stroke in the axial direction as a cylindrical shape, and a yoke portion which supports a permanent magnetic field generating the magnetic flux perpendicular to the axial direction of the movable coil and the permanent magnet and forms a closed circuit of the magnetic flux. In the magnetic flux of the permanent magnet, the respective magnetic fluxes of the central magnetic flux (C) (C ') passing through the central portion thereof and the peripheral magnetic flux (B) (B') passing through the peripheral portion thereof are almost equal. Voice coil motor, characterized in that configured to partially change the path length of the magnetic flux between the permanent magnet and the yoke member. 제1항에 있어서, 상기 중앙부 자속(C)(C')에 대한 리턱턴스가 상기 주변부 자속(B)(B')에 대한 리덕턴스와 근사치가 되도록 상기 영구자석(5)(5')과 상기 요크부재(3)와의 접촉부에서 상기 영구자석(5)(5') 이 좌우대칭하고 그 중앙부가 위로 볼록한 형태로 되게 한 것을 특징으로 하는 보이스 코일 모터.2. The permanent magnets (5) and (5 ') according to claim 1, wherein the resistance to the central magnetic flux (C) (C') is approximated to that of the peripheral magnetic flux (B) (B '). Voice coil motor, characterized in that the permanent magnet (5) (5 ') in the contact portion with the yoke member (3) is symmetrical and the center portion thereof is convex upward. 제1항에 있어서, 상기 주변부(B)(B')에 대한 리덕턴스가 상기 중앙부 자속(C) (C')에 대한 리덕턴스와 근사치가 되도록 상기 영구자석(6)(6')과 상기 요크부재(3) 사이의 접촉부에 서로 대칭하고 각각 좌우주변부로 확대되는 2개의 비자성체(7)(7')가 개재된 것을 특징으로 하는 보이스 코일 모터.2. The permanent magnets (6) and (6 ') according to claim 1, wherein the redundancy with respect to the peripheral portion (B) (B') is close to the redundancy with respect to the central magnetic flux (C) (C '). A voice coil motor, characterized in that two non-magnetic materials (7) (7 ') are symmetrical with each other at the contact portions between the yoke members (3) and extend to the left and right peripheral portions, respectively. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910007156A 1991-04-30 1991-04-30 Voice coil motor KR920020812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910007156A KR920020812A (en) 1991-04-30 1991-04-30 Voice coil motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910007156A KR920020812A (en) 1991-04-30 1991-04-30 Voice coil motor

Publications (1)

Publication Number Publication Date
KR920020812A true KR920020812A (en) 1992-11-21

Family

ID=67432749

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910007156A KR920020812A (en) 1991-04-30 1991-04-30 Voice coil motor

Country Status (1)

Country Link
KR (1) KR920020812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031783A (en) * 2000-10-24 2002-05-03 황의식 Generator with magnetic closed circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031783A (en) * 2000-10-24 2002-05-03 황의식 Generator with magnetic closed circuit

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