KR20090026480A - Motor for driving lens - Google Patents

Motor for driving lens Download PDF

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Publication number
KR20090026480A
KR20090026480A KR1020070091479A KR20070091479A KR20090026480A KR 20090026480 A KR20090026480 A KR 20090026480A KR 1020070091479 A KR1020070091479 A KR 1020070091479A KR 20070091479 A KR20070091479 A KR 20070091479A KR 20090026480 A KR20090026480 A KR 20090026480A
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KR
South Korea
Prior art keywords
yoke
carrier
fixed
case
circumferential surface
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Application number
KR1020070091479A
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Korean (ko)
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KR101427752B1 (en
Inventor
이상희
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엘지이노텍 주식회사
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Priority to KR1020070091479A priority Critical patent/KR101427752B1/en
Publication of KR20090026480A publication Critical patent/KR20090026480A/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
    • 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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic 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
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • 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
    • 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

A lens driving motor is provided to prevent the rotation of carrier due to the contact between the side of yoke and the side of joint. A case(110) comprises an upper case(111) located at the upper side and a lower case(115) located at the lower side. The upper case and the lower case are combined. A yoke(120) is fixed inside the case. A magnet(140) is fixed to the yoke. A carrier(130) is installed inside the yoke to be ascended and descended. A coil(150) is fixed to the carrier. An inner circumference of springs(171,175) is fixed to the carrier. The outer circumference of the spring is fixed to the case side. The spring returns the risen carrier to the initial state. Anti-rotation units are prepared in the yoke and the carrier. The anti-rotation unit is comprised of a plurality of openings(128) and a protrusion(138) inserted into the opening.

Description

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

도 1a는 종래의 렌즈구동모터의 단면도.1A is a cross-sectional view of a conventional lens driving motor.

도 1b는 도 1a의 요부 분해 사시도.Figure 1b is an exploded perspective view of the main portion of Figure 1a.

도 2는 본 발명의 일 실시예에 따른 렌즈 구동용 모터의 분해 사시도.2 is an exploded perspective view of a lens driving motor according to an embodiment of the present invention.

도 3은 도 2의 결합 단면도.3 is a cross sectional view of FIG. 2.

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

110 : 케이스 120 : 요크110: case 120: yoke

130 : 캐리어 140 : 마그네트130: carrier 140: magnet

150 : 코일150: coil

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 이동시키기 위한 렌즈구동모터도 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 moving a lens of a camera embedded in a digital device has been developed and used.

도 1a는 종래의 렌즈구동모터의 단면도이고, 도 1b는 도 1a의 요부 분해 사 시도로서, 이를 설명한다.1A is a cross-sectional view of a conventional lens driving motor, and FIG. 1B is an exploded part attempt of FIG. 1A, which will be described.

도시된 바와 같이, 상호 결합되어 내부에 소정 공간을 형성하는 상부캡(11a) 및 하부캡(11b)이 마련된다. 상부캡(11a) 및 하부캡(11b)의 내부에는 프레임(13)이 설치되고, 프레임(13)의 내측에는 링형상을 이루는 요크(15)가 설치된다.As shown, the upper cap 11a and the lower cap 11b which are coupled to each other to form a predetermined space therein are provided. The frame 13 is installed inside the upper cap 11a and the lower cap 11b, and the yoke 15 having a ring shape is installed inside the frame 13.

요크(15)의 내주면에는 마그네트(17)가 고정되고, 프레임(13) 및 요크(15)의 내측에는 캐리어(Carrier)(19)가 승강가능하게 설치된다. 그리고, 캐리어(19)의 내주면에는 경통(30)이 설치되고, 외주면에는 코일(21)이 고정된다. 그리하여, 코일(21)에 전류가 인가되면, 코일(21)과 마그네트(17)의 작용에 의하여 캐리어(19)가 상승하면서 경통(30)을 상승시킨다.The magnet 17 is fixed to the inner circumferential surface of the yoke 15, and a carrier 19 is provided on the inner side of the frame 13 and the yoke 15 so as to be liftable. And the barrel 30 is provided in the inner peripheral surface of the carrier 19, and the coil 21 is fixed to the outer peripheral surface. Thus, when a current is applied to the coil 21, the barrel 30 is raised while the carrier 19 is raised by the action of the coil 21 and the magnet 17.

상부캡(11a)과 프레임(13) 사이 및 하부캡(11b)과 프레임(13) 사이에는 스프링(23)이 설치되는데, 스프링(23)은 코일(21)에 공급되는 전류가 차단되면, 캐리어(19)를 최초의 상태로 복귀시킨다.Spring 23 is installed between the upper cap (11a) and the frame 13 and between the lower cap (11b) and the frame 13, the spring 23 is a carrier when the current supplied to the coil 21 is cut off, Return (19) to the original state.

그런데, 상기와 같은 종래의 렌즈구동모터는 캐리어(19)의 회전을 방지하는 아무런 수단이 없으므로, 외부의 충격에 의하여 캐리어(19)가 쉽게 회전한다. 또한, 캐리어(19)가 승강할 때, 스프링(23)의 구조적 특징으로 인하여, 캐리어(19)는 회전하면서 승강한다.However, the conventional lens driving motor as described above has no means for preventing the rotation of the carrier 19, the carrier 19 is easily rotated by an external impact. In addition, when the carrier 19 moves up and down, due to the structural features of the spring 23, the carrier 19 moves up and down while rotating.

이로 인해, 경통(30)도 회전되어 초점이 어긋나게 되므로, 제품의 신뢰성이 저하되는 단점이 있다.For this reason, since the barrel 30 is also rotated and the focus is shifted, there is a disadvantage in that the reliability of the product is lowered.

본 발명은 상기와 같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으 로, 본 발명의 목적은 제품의 신뢰성을 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 is to provide a lens driving motor that can improve the reliability of the product.

상기 목적을 달성하기 위한 본 발명에 따른 렌즈 구동용 모터는, 상대적으로 상측 및 하측에 위치되어 상호 결합된 상부케이스와 하부케이스를 가지는 케이스; 상기 케이스의 내부에 고정된 요크; 상기 요크에 고정된 마그네트; 상기 요크의 내부에 승강가능하게 설치되며 경통이 결합되는 캐리어; 상기 캐리어에 고정되며 전류가 인가되면 상기 마그네트와 작용하여 상승하는 코일; 내주면측은 상기 캐리어에 고정되고 외주면측은 상기 케이스측에 고정되어 상승된 상기 캐리어를 최초의 상태로 복귀시키는 스프링; 상기 요크와 상기 캐리어에 마련되어 상기 캐리어가 회전하는 것을 방지하는 수단을 포함한다.Lens driving motor according to the present invention for achieving the above object, the case having a relatively upper and lower case is coupled to each other and located on the lower side; A yoke fixed inside the case; A magnet fixed to the yoke; A carrier mounted to the inside of the yoke to be elevated and coupled with a barrel; A coil which is fixed to the carrier and rises by acting with the magnet when a current is applied; A spring having an inner circumferential surface side fixed to the carrier and an outer circumferential surface side fixed to the case side to return the raised carrier to an initial state; Means provided in the yoke and the carrier to prevent the carrier from rotating.

이하, 첨부한 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 2의 결합 단면도이다.2 is a cross-sectional view of a lens driving motor according to an embodiment of the present invention, Figure 3 is a combined cross-sectional view of FIG.

도시된 바와 같이, 내부에 소정 공간이 형성된 육면체형상의 케이스(110)가 마련된다. 케이스(110)는 상대적으로 상측 및 하측에 배치되어 상호 결합된 상부케이스(111)와 하부케이스(115)를 가지고, 상호 대향하는 상부케이스(111)의 상면과 하부케이스(115)의 하면에는 제 1 관통공(112)과 제 2 관통공(112,116)이 대향되게 형성된다.As shown, a case 110 having a hexahedron shape having a predetermined space formed therein is provided. The case 110 has a top case 111 and a bottom case 115 which are disposed on the upper side and the lower side, and are coupled to each other. The first through hole 112 and the second through hole 112 and 116 are formed to face each other.

케이스(110)의 내주면에는 요크(120)가 고정된다. 요크(120)는 케이스(110)의 내주면에 외주면이 고정되는 대략 사각프레임 형상의 외측요크(121), 외측요크(121)의 내부에 배치된 링형상의 내측요크(123) 및 외측요크(121)와 내측요크(123)를 연결하는 연결요크(125)를 가진다. 이때, 연결요크(125)는 외측요크(121)의 상단면(上端面)과 내측요크(123)의 상단면(上端面)에 일체로 형성된다.The yoke 120 is fixed to the inner circumferential surface of the case 110. The yoke 120 includes an outer yoke 121 having a substantially rectangular frame shape having an outer circumferential surface fixed to an inner circumferential surface of the case 110, a ring-shaped inner yoke 123 and an outer yoke 121 disposed inside the outer yoke 121. ) And a connection yoke 125 for connecting the inner yoke 123. At this time, the connecting yoke 125 is integrally formed on the upper surface of the outer yoke 121 and the upper surface of the inner yoke 123.

내측요크(123) 내측에는 원통형상의 캐리어(Carrier)(130)가 승강가능하게 설치되는데, 캐리어(130)에는 경통(200)이 설치되어 캐리어(130)와 동일하게 승강한다.Inside the inner yoke 123 is a cylindrical carrier (130) is installed to be lifted, the carrier (130) is provided with a barrel (200) is the same as the carrier (130).

외측요크(121)의 모서리부측에는 마그네트(140)가 각각 고정되고, 캐리어(130)의 외주면에는 코일(150)이 고정되어 마그네트(140)와 대향한다. 그리하여, 코일(150)에 전류가 공급되면, 코일(150)과 마그네트(140) 사이에 작용하는 전자기력에 의하여 코일(150)이 상승하고, 이로인해 캐리어(130)가 상승하면서 경통(200)을 상승시킨다. 캐리어(130)와 코일(150)의 결합구조에 대해서는 후술한다.The magnets 140 are fixed to the edge portions of the outer yoke 121, and the coil 150 is fixed to the outer circumferential surface of the carrier 130 to face the magnets 140. Thus, when the current is supplied to the coil 150, the coil 150 is raised by the electromagnetic force acting between the coil 150 and the magnet 140, thereby raising the carrier 130 to raise the barrel 200 Raise. A coupling structure of the carrier 130 and the coil 150 will be described later.

요크(130)의 상면과 케이스(110)의 상면 사이 및 요크(130)의 하면과 케이스(110)의 하면 사이에는 탄성을 가진 링형상의 상부스페이서(Spacer)(161) 및 하부스페이서(165)가 각각 배치된다. 상부 및 하부스페이서(161,165)는 신축되면서 케이스(110)의 내부에 조립되는 부품들의 치수 공차 및 조립시 발생하는 조립 오차에 의한 공차를 보상해 준다.A ring-shaped upper spacer 161 and a lower spacer 165 having elasticity between the upper surface of the yoke 130 and the upper surface of the case 110 and the lower surface of the yoke 130 and the lower surface of the case 110. Are arranged respectively. The upper and lower spacers 161 and 165 expand and compensate for the tolerance due to the dimensional tolerances of the components assembled in the case 110 and the assembly errors occurring during assembly.

전자기력에 의하여 상승된 캐리어(130)는 요크(120)의 상측 및 하측에 설치된 상부스프링 및 하부스프링(171,175)에 의하여 하강되어 최초의 상태로 복귀된 다. 상부 및 하부스프링(171,175)은 직경이 다른 복수의 링이 상호 연결된 형태로 형성된다. 상부스프링(171)의 외주면측은 상부스페이서(161)와 케이스(110)의 상면 사이에 고정되고 내주면측은 캐리어(130)의 상단면(上端面)측에 고정되며, 하부스프링(175)의 외주면측은 하부스페이서(165)와 케이스(110)의 하면 사이에 고정되고 내주면측은 캐리어(130)의 하부측 외주면에 고정된다. 그리하여, 코일(150)에 공급되는 전류가 차단되면, 상부 및 하부스프링(171,175)의 탄성력에 의하여 캐리어(130)가 하강한다.The carrier 130 lifted by the electromagnetic force is lowered by the upper and lower springs 171 and 175 installed on the upper and lower sides of the yoke 120 and returned to the initial state. The upper and lower springs 171 and 175 are formed in a shape in which a plurality of rings having different diameters are interconnected. The outer circumferential surface side of the upper spring 171 is fixed between the upper spacer 161 and the upper surface of the case 110, the inner circumferential surface side is fixed to the upper surface side of the carrier 130, the outer circumferential surface side of the lower spring 175 It is fixed between the lower spacer 165 and the lower surface of the case 110 and the inner peripheral surface side is fixed to the lower outer peripheral surface of the carrier 130. Thus, when the current supplied to the coil 150 is cut off, the carrier 130 is lowered by the elastic force of the upper and lower springs (171,175).

캐리어(130)는 승강하면서 경통(200)의 렌즈(미도시)의 초점을 맞춘다. 캐리어(150)가 원활하게 승강하기 위해서는 인접하는 부품들과 유격을 가지고 조립되어야 한다. 그런데, 캐리어(130)가 유격을 가지고 조립되면, 외부의 충격 또는 상부 및 하부스프링(171,175)의 구조적 특징에 의하여 캐리어(130)가 회전될 수 있다.The carrier 130 moves up and down to focus the lens (not shown) of the barrel 200. In order for the carrier 150 to move up and down smoothly, the carrier 150 must be assembled with a clearance between adjacent parts. However, when the carrier 130 is assembled with a clearance, the carrier 130 may be rotated by external impact or structural features of the upper and lower springs 171 and 175.

캐리어(130)가 회전하면, 경통(200)의 렌즈의 초점이 어긋나게 되는데, 본 실시예에 따른 렌즈 구동용 모터에는 캐리어(130)의 회전을 방지하는 수단이 마련된다.When the carrier 130 rotates, the lens of the barrel 200 is out of focus. The lens driving motor according to the present embodiment is provided with means for preventing rotation of the carrier 130.

상기 수단은 내측요크(123)와 내측요크(123)에 접하는 연결요크(125)의 부위에 소정 간격으로 형성된 복수의 개방부(128) 및 개방부(128)와 대응되게 캐리어(120)의 외주면에 형성되어 개방부(128)에 삽입되는 돌출부(138)로 마련된다. 돌출부(138)가 개방부(128)가 삽입되면, 돌출부(138)의 측면이 개방부(128)를 형성하는 내측요크(123)의 면에 접촉하므로, 캐리어(130)가 회전하지 않는 것이다.The means may include an outer circumferential surface of the carrier 120 to correspond to the plurality of openings 128 and the openings 128 formed at predetermined intervals at portions of the connecting yoke 125 contacting the inner yoke 123 and the inner yoke 123. It is provided with a protrusion 138 formed in and inserted into the opening 128. When the protrusion 138 is opened with the opening 128, the side surface of the protrusion 138 contacts the surface of the inner yoke 123 forming the opening 128, so that the carrier 130 does not rotate.

그리고, 돌출부(138)가 개방부(128)가 삽입되면, 결합부(138)의 외면은 내측 요크(123)의 외주면 보다 외측요크(121)측으로 더 돌출되고, 결합부(138)의 외면에 코일(150)이 고정된다. 이로인해, 코일(150)이 상승하면, 캐리어(130)도 상승하는 것이다.And, when the protrusion 138 is the opening portion 128 is inserted, the outer surface of the coupling portion 138 is more protruded toward the outer yoke 121 than the outer peripheral surface of the inner yoke 123, the outer surface of the coupling portion 138 Coil 150 is fixed. Thus, when the coil 150 rises, the carrier 130 also rises.

상부스프링(171)의 내주면측에는 결합공(171a)이 형성되고, 결합부(138)의 상단면(上端面)에는 결합공(171a)에 삽입 결합되는 결합돌기(138a)가 형성된다. 결합공(171a)과 결합돌기(138a)로 인하여, 상부스프링(171)이 캐리어(130)에 고정되므로, 상부스프링(171)을 캐리어(130)에 사출로 형성하지 않아도 된다.A coupling hole 171a is formed at an inner circumferential surface side of the upper spring 171, and a coupling protrusion 138a is inserted into and coupled to the coupling hole 171a at an upper end surface of the coupling portion 138. Due to the coupling hole 171a and the coupling protrusion 138a, since the upper spring 171 is fixed to the carrier 130, the upper spring 171 does not need to be formed in the carrier 130 by injection.

이상에서 설명한 바와 같이, 본 발명에 따른 렌즈 구동용 모터는 캐리어의 외주면에 돌출 형성된 결합부가 요크의 일측에 삽입되고, 결합부의 측면이 요크의 면에 접촉되므로, 캐리어가 회전되지 않는다. 그러므로, 캐리어의 회전에 따른 렌즈의 초점 변화가 없으므로, 제품의 신뢰성이 향상된다.As described above, in the lens driving motor according to the present invention, the coupling part protruding on the outer circumferential surface of the carrier is inserted into one side of the yoke, and the side of the coupling part contacts the surface of the yoke, so that the carrier does not rotate. Therefore, since there is no change in focus of the lens due to the rotation of the carrier, the reliability of the product is improved.

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.In the above, the present invention has been described in accordance with one embodiment of the present invention, but those skilled in the art to which the present invention pertains have been changed and modified without departing from the spirit of the present invention. Of course.

Claims (4)

상대적으로 상측 및 하측에 위치되어 상호 결합된 상부케이스와 하부케이스를 가지는 케이스;A case having an upper case and a lower case which are positioned at upper and lower sides and are coupled to each other; 상기 케이스의 내부에 고정된 요크;A yoke fixed inside the case; 상기 요크에 고정된 마그네트;A magnet fixed to the yoke; 상기 요크의 내부에 승강가능하게 설치되며 경통이 결합되는 캐리어;A carrier mounted to the inside of the yoke to be elevated and coupled with a barrel; 상기 캐리어에 고정되며 전류가 인가되면 상기 마그네트와 작용하여 상승하는 코일;A coil which is fixed to the carrier and rises by acting with the magnet when a current is applied; 내주면측은 상기 캐리어에 고정되고 외주면측은 상기 케이스측에 고정되어 상승된 상기 캐리어를 최초의 상태로 복귀시키는 스프링;A spring having an inner circumferential surface side fixed to the carrier and an outer circumferential surface side fixed to the case side to return the raised carrier to an initial state; 상기 요크와 상기 캐리어에 마련되어 상기 캐리어가 회전하는 것을 방지하는 수단을 포함하는 렌즈 구동용 모터.And a means provided in the yoke and the carrier to prevent the carrier from rotating. 제 1 항에 있어서,The method of claim 1, 상기 요크는 상기 케이스의 내주면에 고정된 외측요크, 상기 외측요크의 내부에 배치된 링형상의 내측요크 및 상기 외측요크와 상기 내측요크를 연결하는 연결요크를 가지고,The yoke has an outer yoke fixed to the inner circumferential surface of the case, a ring-shaped inner yoke disposed inside the outer yoke, and a connecting yoke connecting the outer yoke and the inner yoke, 상기 수단은 상기 내측요크와 상기 내측요크에 접하는 상기 연결요크의 부위에 소정 간격으로 형성된 복수의 개방부 및 상기 캐리어의 외주면에 형성되어 상기 개방부에 삽입되는 돌출부인 렌즈 구동용 모터.The means is a lens driving motor is a plurality of openings formed at predetermined intervals in the portion of the connecting yoke in contact with the inner yoke and the inner yoke and a protrusion formed on the outer peripheral surface of the carrier and inserted into the opening. 제 2 항에 있어서,The method of claim 2, 상기 결합부의 외면은 상기 내측요크의 외주면 보다 상기 외측요크측으로 더 돌출되고, 상기 결합부의 외면에 상기 코일이 고정된 렌즈 구동용 모터.The outer surface of the coupling portion protrudes toward the outer yoke side more than the outer circumferential surface of the inner yoke, the lens driving motor in which the coil is fixed to the outer surface of the coupling portion. 제 2 항에 있어서,The method of claim 2, 상기 요크의 상면과 상기 케이스 사이 및 상기 요크의 하면과 상기 케이스 사이에는 링형상의 상부 및 하부스프링의 외주면측이 각각 고정되고,Between the upper surface of the yoke and the case, and between the lower surface of the yoke and the case, outer peripheral surface sides of the ring-shaped upper and lower springs are respectively fixed, 상기 상부스프링의 내주면측 및 상기 결합부의 단면(端面)에는 상호 삽입 결합되는 결합공 및 결합돌기가 각각 형성되며,On the inner circumferential surface side of the upper spring and the end face of the coupling portion, coupling holes and coupling protrusions which are inserted into and coupled to each other are formed, respectively. 상기 하부스프링의 내주면측은 상기 캐리어의 외주면에 고정된 렌즈 구동용 모터.The inner circumferential surface side of the lower spring is fixed to the outer circumferential surface of the carrier motor for driving the lens.
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KR20210080324A (en) * 2020-11-03 2021-06-30 엘지이노텍 주식회사 Voice coil motor
KR20220020310A (en) * 2021-01-06 2022-02-18 엘지이노텍 주식회사 Voice coil motor
CN112928889A (en) * 2021-03-22 2021-06-08 新思考电机有限公司 Driving device, camera module and electronic equipment
CN112928889B (en) * 2021-03-22 2022-06-10 新思考电机有限公司 Driving device, camera module and electronic equipment
KR20230004407A (en) * 2021-04-21 2023-01-06 엘지이노텍 주식회사 Voice coil motor
KR20220000890A (en) * 2021-04-21 2022-01-04 엘지이노텍 주식회사 Voice coil motor
KR20230006787A (en) * 2021-05-03 2023-01-11 엘지이노텍 주식회사 Voice coil motor
KR20220017981A (en) * 2021-05-03 2022-02-14 엘지이노텍 주식회사 Voice coil motor

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