KR20100083212A - Motor for driving lens - Google Patents

Motor for driving lens Download PDF

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Publication number
KR20100083212A
KR20100083212A KR1020090002485A KR20090002485A KR20100083212A KR 20100083212 A KR20100083212 A KR 20100083212A KR 1020090002485 A KR1020090002485 A KR 1020090002485A KR 20090002485 A KR20090002485 A KR 20090002485A KR 20100083212 A KR20100083212 A KR 20100083212A
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KR
South Korea
Prior art keywords
housing
base
coupling
driving motor
lens driving
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KR1020090002485A
Other languages
Korean (ko)
Inventor
민상준
Original Assignee
엘지이노텍 주식회사
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Priority to KR1020090002485A priority Critical patent/KR20100083212A/en
Publication of KR20100083212A publication Critical patent/KR20100083212A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Abstract

PURPOSE: A motor for driving a lens is provided to increase the adhesive area of a base and a housing by inserting the combining protrusion of the base into the combining hole of the housing. CONSTITUTION: A base(110) includes a plurality of combining protrusions(114). One side of a housing(120) is combined to the base. The protrusions of the base are inserted into combining holes which are formed in the housing. An input hole(122) is formed on the other side of the housing. A carrier, which passes through the input hole, is installed in the housing. A lens is installed in the carrier.

Description

렌즈 구동용 모터 {MOTOR FOR DRIVING LENS}Lens Driving Motor {MOTOR FOR DRIVING LENS}

본 발명은 렌즈 구동용 모터에 관한 것이다.The present invention relates to a motor for driving a lens.

디지털기기의 다기능화 추세에 따라 카메라 및 MP3 플레이어 등이 내장된 디지털기기가 개발되어 사용되고 있다. 그리고, 디지털기기에 내장된 카메라의 렌즈를 자동으로 이송시키기 위한 렌즈 구동용 모터도 개발되어 사용되고 있다.As digital devices become more versatile, digital devices with built-in cameras and MP3 players have been developed and used. In addition, a lens driving motor for automatically transferring a lens of a camera embedded in a digital device has been developed and used.

도 1은 종래의 렌즈 구동용 모터의 베이스와 하우징을 보인 사시도로서, 이를 설명한다.1 is a perspective view illustrating a base and a housing of a conventional lens driving motor.

도시된 바와 같이, 상호 결합되어 내부에 소정 공간을 형성하는 베이스(11)와 하우징(13)이 마련되고, 베이스(11)와 하우징(13)의 내부에는 캐리어(미도시)가 승강가능하게 설치된다. 상기 캐리어에는 렌즈(미도시)가 설치된다.As shown, the base 11 and the housing 13 are coupled to each other to form a predetermined space therein, and the carrier (not shown) is installed in the base 11 and the housing 13 so as to be elevated. do. The carrier is provided with a lens (not shown).

그리하여, 상기 캐리어에 권선된 코일에 전류가 공급되면, 상기 코일과 상기 하우징의 내부에 설치된 마그네트의 작용에 의하여 상기 캐리어가 상승한다. 그후, 상기 코일에 공급되는 전류를 차단하면, 상기 캐리어의 상하측에 결합된 스프링의 탄성력에 의하여 상기 캐리어가 최초의 상태로 복귀된다. 이로인해, 상기 캐리어에 설치된 상기 렌즈가 승강한다.Thus, when a current is supplied to the coil wound on the carrier, the carrier is raised by the action of the coil and the magnet installed inside the housing. Thereafter, when the current supplied to the coil is cut off, the carrier is returned to the original state by the elastic force of the spring coupled to the upper and lower sides of the carrier. This raises and lowers the lens installed in the carrier.

상기와 같은 종래의 렌즈 구동용 모터는 하면이 개방된 원통형 하우징(13)의 하단면 부위가 베이스(11)에 결합되므로, 베이스(11)와 하우징(13)의 결합면적이 작다. 이로인해, 소정 이하의 충격에 의해서도 베이스(11)와 하우징(13)이 분리되는 단점이 있다.In the conventional lens driving motor as described above, since the lower end portion of the cylindrical housing 13 having an open lower surface is coupled to the base 11, the coupling area of the base 11 and the housing 13 is small. Due to this, there is a disadvantage that the base 11 and the housing 13 are separated even by a predetermined shock or less.

본 발명은 상기와 같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으로, 본 발명의 목적은 베이스와 하우징의 결합력을 향상시킬 수 있는 렌즈 구동용 모터를 제공함에 있다.The present invention has been made to solve the above problems of the prior art, an object of the present invention to provide a lens driving motor that can improve the coupling force of the base and the housing.

상기 목적을 달성하기 위한 본 발명에 따른 렌즈 구동용 모터는, 복수의 결합돌기가 형성된 베이스; 일면측이 상기 베이스에 결합되고, 타면에는 출입공이 형성되며, 내부에는 상기 결합돌기가 삽입 결합되는 결합공이 형성된 하우징; 상기 하우징의 내부에 승강가능하게 설치되어 상기 출입공을 출입하며, 렌즈가 설치되는 캐리어를 포함한다.Lens driving motor according to the present invention for achieving the above object, a base having a plurality of engaging projections; A housing having one side coupled to the base, the other side having an access hole formed therein, and having a coupling hole into which the coupling protrusion is inserted; It is provided to be movable up and down inside the housing to enter and exit the access hole, and includes a carrier in which the lens is installed.

본 발명에 따른 렌즈 구동용 모터는 베이스의 결합돌기가 하우징의 결합공에 삽입되어 결합되므로, 베이스와 하우징의 결합면적이 넓다. 따라서, 베이스와 하우징의 결합력이 크므로, 소정 이하의 충격에 의해서는 베이스와 하우징이 상호 분리되지 않는다.In the lens driving motor according to the present invention, since the coupling protrusion of the base is inserted into and coupled to the coupling hole of the housing, the coupling area of the base and the housing is wide. Therefore, since the coupling force of the base and the housing is large, the base and the housing are not separated from each other by a predetermined shock or less.

이하, 첨부된 도면을 참조하여 본 발명의 일 실시예에 따른 렌즈 구동용 모터를 상세히 설명한다.Hereinafter, a lens driving motor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 렌즈 구동용 모터의 단면도이고, 도 3은 도 2에 도시된 베이스와 하우징의 분해 사시도이다.2 is a cross-sectional view of a lens driving motor according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the base and the housing shown in FIG.

도시된 바와 같이, 본 실시예에 따른 렌즈 구동용 모터는 관통공(112)이 형성된 베이스(110)를 가진다.As shown, the lens driving motor according to the present embodiment has a base 110 in which a through hole 112 is formed.

이하, 베이스(110)를 포함한 다른 구성요소들의 면 및 방향을 지칭함에 있어서, 베이스(110)의 수직방향 상측을 향하는 면 및 방향을 "상면 및 상측", 수직방향 하측을 향하는 면 및 방향을 "하면 및 하측"이라 한다.Hereinafter, in referring to the plane and the direction of other components including the base 110, the plane and the direction toward the vertical direction upward of the base 110 "top and top", the plane and the direction toward the vertical bottom " Lower surface and lower side ".

베이스(110)의 상면에는 하우징(120)이 결합된다. 하우징(120)은 하면은 개방되고 상면에는 관통공(112)과 대향되게 출입공(122)이 형성된 통형상으로 형성되며, 개방된 하면측이 베이스(110)에 결합된다.The housing 120 is coupled to the upper surface of the base 110. The lower surface of the housing 120 is opened, and the upper surface of the housing 120 is formed in a tubular shape having an access hole 122 facing the through hole 112, and the opened lower surface side is coupled to the base 110.

본 실시예에 따른 렌즈 구동용 모터는 베이스(110)와 하우징(120)의 결합력을 향상시키기 위하여, 베이스(110)의 모서리부 상면에 결합돌기(114)를 각각 형성하고, 하우징(120)의 내부 모서리부에 결합돌기(114)가 삽입 결합되는 결합공(124)이 형성된다. 결합돌기(114)의 외면이 결합공(124)의 내면에 접촉되어 상호 결합되므로, 결합면적이 넓다. 따라서, 베이스(110)와 하우징(120)이 상호 견고하게 결합된다.In the lens driving motor according to the present embodiment, the coupling protrusions 114 are formed on the upper surface of the corner of the base 110 to improve the coupling force between the base 110 and the housing 120, respectively. A coupling hole 124 is formed in which the coupling protrusion 114 is inserted and coupled to the inner edge portion. Since the outer surface of the coupling protrusion 114 is in contact with the inner surface of the coupling hole 124 to be mutually coupled, the coupling area is wide. Thus, the base 110 and the housing 120 are firmly coupled to each other.

결합돌기(114)는 베이스(110)의 상면에 일체로 형성되어 상측으로 돌출된 제 1 결합돌기(114a)와 제 1 결합돌기(114a)의 상단부에서 상측으로 연장 형성되며 제 1 결합돌기(114a) 보다 작은 크기로 형성된 제 2 결합돌기(114b)를 가진다. 그리고, 결합공(124)은 제 1 및 제 2 결합돌기(114a,114b)와 각각 대응되게 형성되어 상호 연통된 제 1 및 제 2 결합공(124a,124b)을 가진다.The coupling protrusion 114 is integrally formed on the upper surface of the base 110 and extends upward from an upper end of the first coupling protrusion 114a and the first coupling protrusion 114a that protrude upward and the first coupling protrusion 114a. The second coupling protrusion 114b is formed to have a smaller size. The coupling hole 124 has first and second coupling holes 124a and 124b formed to correspond to the first and second coupling protrusions 114a and 114b, respectively.

베이스(110)와 하우징(120)을 더욱 견고하게 결합하기 위하여, 베이스(110)의 테두리부측에는 상측으로 돌출된 단면(段面)(116)이 형성되고, 단면(116)에는 하우징(120)의 하단면(下端面)측 내주면이 삽입 결합된다.In order to more firmly combine the base 110 and the housing 120, a cross section 116 protruding upward is formed at the edge of the base 110, and the housing 120 is formed at the cross section 116. The inner circumferential surface of the lower side of the lower surface is inserted and coupled.

하우징(120)의 모서리부측 내면에는 마그네트(130)가 고정되고, 마그네트(130)의 하면과 베이스(110)의 상면 사이 및 마그네트(130)의 상면과 하우징(120)의 상면 사이에는 부품들의 치수공차 및 조립공차를 보상해 주는 하부 및 상부스페이서(Spacer)(141,145)가 각각 설치된다.The magnet 130 is fixed to the inner surface of the corner side of the housing 120, and the dimensions of the components are between the bottom surface of the magnet 130 and the top surface of the base 110 and between the top surface of the magnet 130 and the top surface of the housing 120. Lower and upper spacers 141 and 145 that compensate for tolerances and assembly tolerances are installed, respectively.

마그네트(130)의 내측에는 캐리어(150)가 승강가능하게 설치되어 출입공(122)을 출입한다. 캐리어(150)의 내주면에는 렌즈(미도시)가 설치되고, 외주면에는 권선된 코일(160)이 고정된다.The carrier 150 is installed inside the magnet 130 so as to be lifted and lowered to enter and exit the entrance hole 122. A lens (not shown) is installed on the inner circumferential surface of the carrier 150, and the coiled coil 160 is fixed to the outer circumferential surface.

캐리어(150)는 스프링(170)에 의하여 지지된다. 상세히 설명하면, 하부스페이서(141)의 하면과 베이스(110)의 상면 사이 및 상부스페이서(145)의 상면과 하우징(120)의 상면 사이에는 링형상의 스프링(170)의 외주면측이 삽입 지지되고, 스프링(170)의 내주면측은 캐리어(Carrier)(150)의 외주면에 결합된다.The carrier 150 is supported by the spring 170. In detail, the outer circumferential surface side of the ring-shaped spring 170 is inserted and supported between the lower surface of the lower spacer 141 and the upper surface of the base 110 and between the upper surface of the upper spacer 145 and the upper surface of the housing 120. The inner circumferential surface side of the spring 170 is coupled to the outer circumferential surface of the carrier 150.

그리하여, 코일(160)에 전류가 공급되면, 코일(160)과 마그네트(130)의 작용에 의하여 코일(160)이 상승하고, 이로인해 캐리어(150)가 상승하면서 캐리어(150) 에 설치된 상기 렌즈를 상승시킨다. 상승된 캐리어(150)는 코일(160)에 공급되는 전류가 차단되면, 스프링(170)에 의하여 최초의 상태로 복귀된다.Thus, when a current is supplied to the coil 160, the coil 160 is raised by the action of the coil 160 and the magnet 130, and as a result, the carrier 150 is raised and the lens installed on the carrier 150. To increase. The raised carrier 150 is returned to its original state by the spring 170 when the current supplied to the coil 160 is cut off.

이상에서는, 본 발명의 일 실시예에 따라 본 발명을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 변경 및 변형한 것도 본 발명에 속함은 당연하다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Of course.

도 1은 종래의 렌즈 구동용 모터의 베이스와 하우징의 사시도.1 is a perspective view of a base and a housing of a conventional lens driving motor.

도 2는 본 발명의 일 실시예에 따른 렌즈 구동용 모터의 단면도.2 is a cross-sectional view of a lens driving motor according to an embodiment of the present invention.

도 3은 도 2에 도시된 베이스와 하우징의 사시도.3 is a perspective view of the base and the housing shown in FIG.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

110 : 베이스 120 : 하우징110: base 120: housing

130 : 마그네트 150 : 캐리어130: magnet 150: carrier

160 : 코일 170 : 스프링160: coil 170: spring

Claims (4)

복수의 결합돌기가 형성된 베이스;A base having a plurality of coupling protrusions; 일면측이 상기 베이스에 결합되고, 타면에는 출입공이 형성되며, 내부에는 상기 결합돌기가 삽입 결합되는 결합공이 형성된 하우징;A housing having one side coupled to the base, the other side having an access hole formed therein, and having a coupling hole into which the coupling protrusion is inserted; 상기 하우징의 내부에 승강가능하게 설치되어 상기 출입공을 출입하며, 렌즈가 설치되는 캐리어를 포함하는 렌즈 구동용 모터.A lens driving motor including a carrier that is installed to be able to lift and move inside the housing to enter and exit the access hole, the lens is installed. 제 1 항에 있어서,The method of claim 1, 상기 결합돌기는 상기 베이스에 일체로 형성된 제 1 결합돌기와 상기 제 1 결합돌기의 단부에서 연장 형성되며 상기 제 1 결합돌기 보다 작은 크기로 형성된 제 2 결합돌기를 가지고,The coupling protrusion has a first coupling protrusion formed integrally with the base and a second coupling protrusion formed extending from an end of the first coupling protrusion and smaller than the first coupling protrusion, 상기 결합공은 제 1 및 제 2 결합돌기와 각각 대응되게 형성된 제 1 및 제 2 결합공을 가지는 렌즈 구동용 모터.The coupling hole has a lens driving motor having first and second coupling holes formed to correspond to the first and second coupling projections, respectively. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 하우징의 일면은 개방되고,One side of the housing is opened, 상기 베이스의 테두리부측에는 상기 하우징의 개방된 일단면(一端面)측 내주면이 삽입되는 단면(段面)이 형성된 렌즈 구동용 모터.A lens driving motor having a cross section in which an inner circumferential surface of an open one end side of the housing is inserted at an edge portion of the base. 제 3 항에 있어서,The method of claim 3, wherein 상기 베이스의 단면(段面)은 상기 하우징의 타면측으로 돌출된 렌즈 구동용 모터.A cross section of the base is a lens driving motor protruding toward the other surface side of the housing.
KR1020090002485A 2009-01-13 2009-01-13 Motor for driving lens KR20100083212A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140024981A (en) 2012-08-20 2014-03-04 엘지이노텍 주식회사 Voice coil motor
KR20190010697A (en) * 2019-01-21 2019-01-30 엘지이노텍 주식회사 Voice coil motor
KR20190010886A (en) * 2019-01-18 2019-01-31 엘지이노텍 주식회사 Voice coil motor
KR20200003749A (en) * 2019-12-17 2020-01-10 엘지이노텍 주식회사 Voice coil motor
KR20200019658A (en) * 2020-02-14 2020-02-24 엘지이노텍 주식회사 Voice coil motor
KR20200040730A (en) * 2020-04-09 2020-04-20 엘지이노텍 주식회사 Voice coil motor
KR20200117949A (en) * 2020-10-05 2020-10-14 엘지이노텍 주식회사 Voice coil motor
KR20200138114A (en) * 2020-04-09 2020-12-09 엘지이노텍 주식회사 Voice coil motor
KR20210125461A (en) * 2020-11-27 2021-10-18 엘지이노텍 주식회사 Voice coil motor
WO2021218952A1 (en) * 2020-04-29 2021-11-04 苏州欧普照明有限公司 Electric motor for household appliance, and household appliance

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140024981A (en) 2012-08-20 2014-03-04 엘지이노텍 주식회사 Voice coil motor
KR20190010886A (en) * 2019-01-18 2019-01-31 엘지이노텍 주식회사 Voice coil motor
KR20190010697A (en) * 2019-01-21 2019-01-30 엘지이노텍 주식회사 Voice coil motor
KR20200003749A (en) * 2019-12-17 2020-01-10 엘지이노텍 주식회사 Voice coil motor
KR20200019658A (en) * 2020-02-14 2020-02-24 엘지이노텍 주식회사 Voice coil motor
KR20200040730A (en) * 2020-04-09 2020-04-20 엘지이노텍 주식회사 Voice coil motor
KR20200138114A (en) * 2020-04-09 2020-12-09 엘지이노텍 주식회사 Voice coil motor
WO2021218952A1 (en) * 2020-04-29 2021-11-04 苏州欧普照明有限公司 Electric motor for household appliance, and household appliance
KR20200117949A (en) * 2020-10-05 2020-10-14 엘지이노텍 주식회사 Voice coil motor
KR20210125461A (en) * 2020-11-27 2021-10-18 엘지이노텍 주식회사 Voice coil motor
KR20220099935A (en) * 2020-11-27 2022-07-14 엘지이노텍 주식회사 Voice coil motor

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