KR100346232B1 - Device for fixing actuator of hard disc drive - Google Patents

Device for fixing actuator of hard disc drive Download PDF

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Publication number
KR100346232B1
KR100346232B1 KR1019950009974A KR19950009974A KR100346232B1 KR 100346232 B1 KR100346232 B1 KR 100346232B1 KR 1019950009974 A KR1019950009974 A KR 1019950009974A KR 19950009974 A KR19950009974 A KR 19950009974A KR 100346232 B1 KR100346232 B1 KR 100346232B1
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KR
South Korea
Prior art keywords
actuator
permanent magnet
pin
hard disc
coil
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KR1019950009974A
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Korean (ko)
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KR960038553A (en
Inventor
최영수
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삼성전자 주식회사
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Priority to KR1019950009974A priority Critical patent/KR100346232B1/en
Publication of KR960038553A publication Critical patent/KR960038553A/en
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Publication of KR100346232B1 publication Critical patent/KR100346232B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/22—Supporting the heads; Supporting the sockets for plug-in heads while the head is out of operative position
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4813—Mounting or aligning of arm assemblies, e.g. actuator arm supported by bearings, multiple arm assemblies, arm stacks or multiple heads on single arm

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  • Moving Of Heads (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

PURPOSE: A device for fixing an actuator of a hard disc drive is provided to reduce the influence of a permanent magnet on the actuator by fixing the actuator by a coil pulling a traverse die having elasticity, thereby utilizing the recording surface of a hard disc maximally. CONSTITUTION: A device for fixing an actuator of a hard disc drive includes an actuator(10) formed with a pin(12) at a side, a traverse die(14), a permanent magnet(22) fixed in the proximity of the slant surface of the traverse die, and a coil(26) forming a magnetic circuit according to the power supply and pulling the permanent magnet according to the Fleming's left-hand rule to bend the traverse die. The traverse die has a groove-shaped holding part(18) to be fitted with the pin, a slant surface(16) for guiding the pin into the holding part, and an elastic part(20) formed with a slender part for the flexibility of the traverse die.

Description

하드디스크 드라이브의 액츄에이터 고정장치Actuator retainer on hard disk drive

본 발명은 하드디스크 드라이브에 관한 것으로서, 특히 액츄에이터의 고정장치에 관한 것이다.The present invention relates to a hard disk drive, and more particularly, to a fixing device of an actuator.

종래 하드디스크 드라이드의 액츄에이터 고정장치는, 제 1 도에 도시한 바와같이, 액츄에이터(70)의 회전 운동에 의하여 자기헤드(72)가 파킹 하려고 할때 프레스 부품으로 성형한 래치브라켓(LATCH BRACKET)(74) 내에 영구자석(76)가 조립되어 있어서 액츄에이터(70)의 끝부분에 조립되어진 래치나사(LATCH SCREW)(78)가 상기 영구자석(76)의 자력에 의해 접촉하게 되고 이로 인해 자기헤드(72)의 파킹이 이루어진다.As shown in FIG. 1, the actuator fixing device of a conventional hard disk drive has a latch bracket (LATCH BRACKET) formed of press parts when the magnetic head 72 tries to park by the rotational movement of the actuator 70 ( The permanent magnet 76 is assembled in the 74, and the latch screw 78 assembled at the end of the actuator 70 is brought into contact with the magnetic force of the permanent magnet 76, thereby causing the magnetic head ( 72) parking takes place.

프레스(PRESS) 부품으로 구성된 상기 래치브라켓(74)은 형상이 복잡하여 치수에서 벗어난 휨형상등이 발생하여 래치나사(78)가 상기 영구자석에 제대로 접촉이 되지 않는 등의 문제점이 발생한다. 또 자기헤드(72)의 안정된 파킹(Parking)을 위하여 상기 영구자석(76)의 일정 자속밀도가 필요하게 되는데 이로 인하여 제품의 기동시에 액츄에이터(70)가 상기 영구자석(76)의 힘에 의해 구동되지 않는 경우도 발생하며, 이럴 경우 액츄에이터를 구동시키기 위하여 보이스코일모터의 코일에 과도한 전류 공급이 필요하게 된다. 그리고 하드디스크 드라이브의 사용중에는 래치나사(78)와 영구자석(78)이 접촉되지 않도록 일정한 거리가 필요하므로 이로 인하여 하드디스크(80)상의 데이타면을 충분히 사용하지 못하는 경우가 발생하게 되어서 기록 용량의 감소를 초래하게 된다.The latch bracket 74, which is composed of a press part, has a complicated shape, such as a warp shape that is out of dimensions, such that the latch screw 78 is not properly in contact with the permanent magnet. In addition, a stable magnetic flux density of the permanent magnet 76 is required for stable parking of the magnetic head 72. Therefore, the actuator 70 is driven by the force of the permanent magnet 76 when the product is started. In some cases, excessive current supply to the coil of the voice coil motor is required to drive the actuator. During the use of the hard disk drive, a certain distance is required so that the latch screw 78 and the permanent magnet 78 do not come into contact with each other. Therefore, the data surface on the hard disk 80 may not be sufficiently used. Will result in a decrease.

따라서 본 발명의 목적은 액츄에이터의 고정시에는 기구적으로 고정시키고 해제시에는 영구자석을 끌어당기는 코일를 갖춤에 따라 영구자석이 직접 액츄에이터의 회전 운동에 영향을 주지 않게끔 사용하므로써 기록면을 최대한 활용할 수 있게 하므로써 기록용량의 증가를 가져오는 하드디스크 드라이브의 액츄에이터 고정장치를 제공하는데 있다.Therefore, the object of the present invention is to make the most of the recording surface by using the permanent magnet does not directly affect the rotational movement of the actuator by having a mechanically fixed when the actuator is fixed and a coil that pulls the permanent magnet when released Thus, the present invention provides an actuator fixing device for a hard disk drive, which increases the recording capacity.

상기와 같은 목적에 따라, 본 발명은 일단에 핀을 갖춘 액츄에이터와, 상기 핀이 끼워지는 홈형태의 걸림부와 상기 핀을 상기 걸림부에 안내하는 경사면과 잘 휘어질수 있게 일부분이 잘룩한 탄성부를 갖춘 가로대와, 그리고 상기 가로대의 경사면에 근접하여 고정된 영구자석과, 전원을 공급받음에 따라 자기회로가 형성되고 상기 플레밍의 왼손 법칙에 따라 상기 영구자석을 끌어당겨 상기 가로대를 휘게하는 코일로 구성된 것을 특징으로 한다.In accordance with the above object, the present invention provides an actuator having a pin at one end, a groove-shaped locking portion into which the pin is fitted, and an inclined surface that guides the pin to the locking portion, and an elastic portion that is partially cut to bend well. And a coil having a permanent magnet fixed near to the inclined surface of the crossbar, and a magnetic circuit formed upon receiving power, and pulling the permanent magnet according to the Fleming's left hand law to bend the crossbar. It is characterized by.

이하 본 발명의 바람직한 실시예가 첨부된 도면과 함께 상세히 설명될 것이다. 도면들중 동일한 부품들은 가능한한 어느곳에서든지 동일한 부호들을 나타내고 있음을 유의하여야 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with the accompanying drawings. It should be noted that the same parts in the figures represent the same reference signs wherever possible.

본 발명에 따른 하드디스크 드라이브의 액츄에이터 고정장치는, 제 2 도와 제 3 도에 도시한 바와같이, 일단에 핀(12)을 갖춘 액츄에이터(10)와, 상기 핀(12)이 끼워지는 홈형태의 걸림부(18)와 상기 핀(12)을 상기 걸림부(18)에 안내하는 경사면(16)과 잘 휘어질수 있게 일부분이 잘록한 탄성부(20)를 갖춘 가로대(14)와, 그리고 상기 가로대(14)의 경사면(16)에 근접하여 고정된 영구자석(22)과, 전원을 공급받음에 따라 자기회로가 형성되고 상기 플레밍의 왼손 법칙에 따라 상기 영구자석(22)을 끌어당겨 상기 가로대(14)를 휘게하는 사각형 모양의 코일(26)로 구성된다.The actuator fixing device of the hard disk drive according to the present invention, as shown in FIG. 2 and FIG. 3, has an actuator 10 having a pin 12 at one end, and a groove shape into which the pin 12 is fitted. Grab bars 14 having a locking portion 18 and an inclined surface 16 for guiding the pin 12 to the locking portion 18 and an elastic portion 20 which is partially curved to bend well, and the crossbar ( The permanent magnet 22 fixed near the inclined surface 16 of 14 and a magnetic circuit are formed when the power is supplied, and the permanent magnet 22 is attracted to the crosspiece 14 according to the Fleming's left hand law. It is composed of a coil 26 of a square shape to bend.

상기 가로대(14)의 일단은 대략 45도 경사진 경사면(16)과, 상기 경사면(16)에 연하여 턱으로 형성된 걸림부(18)와 그리고 상기 경사면(16)과 근접되게는 영구자석(22)이 나사(24)로 고정되었다. 상기 가로대(14)의 타단은 나사(24)로 도시하지 않은 베이스의 바닥면에 고정되며 자체 탄력을 갖게 하기 위하여 일부분이 잘록한 탄성부(20)를 구비한다. 상기 가로대(14)는 몰드물이다.One end of the crosspiece 14 is an inclined surface 16 inclined at approximately 45 degrees, a locking portion 18 formed by a jaw connected to the inclined surface 16, and a permanent magnet 22 in close proximity to the inclined surface 16. ) Is fixed with screws (24). The other end of the crosspiece 14 is fixed to the bottom surface of the base (not shown) by the screw 24 and has an elastic portion 20 in which a portion is cut in order to have its own elasticity. The crosspiece 14 is a mold.

상기와 같이 구성된 본 발명에 따른 하드디스크 드라이브의 액츄에이터 고정장치는, 도시하지아노은 베이스의 소정 위치에 액츄에이터(10)가 고정되며, 상기 액츄에이터(10)의 핀(12)에 접하게는 경사면(16)이 접촉되게, 제 4 도에 도시한 바와 같이, 가로대(14)를 도시하지 않은 베이스의 바닥면 소정 위치에 나사(24)로 고정한다. 그리고 영구자석(22)을 가로대(14)의 일단에 나사(24)로 고정한다. 영구자석(22)과 근접되게는 코일(26)을 베이스에 고정한다.In the actuator fixing device of the hard disk drive according to the present invention configured as described above, the actuator 10 is fixed to a predetermined position of the base, and the inclined surface 16 is in contact with the pin 12 of the actuator 10. In this contact, as shown in FIG. 4, the crossbar 14 is fixed to the bottom predetermined position of the base (not shown) with the screw 24. As shown in FIG. And the permanent magnet 22 is fixed to the end of the crosspiece 14 with a screw 24. In close proximity to the permanent magnet 22, the coil 26 is fixed to the base.

상기와 같이 조립 구성된 본 발며에 따른 하드디스크 드라이브의 액츄에이터 고정장치는, 제 4 도에 도시한 바와같이, 정상동작(Read/write)시에는 가로대(14)가 평형상태를 유지하면서 회전운동을 하고 있는 액츄에이터(10)의 핀(12)과는 간섭이 되지 않는다.As shown in FIG. 4, the actuator fixing device of the hard disk drive according to the present invention, which is configured as described above, rotates while the crossbar 14 maintains an equilibrium state during normal operation (read / write). There is no interference with the pin 12 of the actuator 10.

자기헤드를 파킹시에는 도시하지 않은 디스크와 스핀(12)들모터의 역기전력에 의해 액츄에이터(10)의 핀(12)이 경사면(16)을 타고 들어감에 따라 가로대(14)가 탄성부(20)를 중심으로 휘어지고 상기 핀(12)이 걸림부(18)에 삽입된다. 상기 핀(12)이 정위치에 고정되면 가로대(14)는 탄성력에 의해 원래의 위치로 되돌아 가게되어 액츄에이터(10)의 핀(12)이 걸림부(18)에 고정된다.(제 5 도 참조) 이에따라 자기헤드가 파킹된다.When the magnetic head is parked, the crossbar 14 is elastic part 20 as the pin 12 of the actuator 10 enters the inclined surface 16 by the back electromotive force of the disk and the spin 12 motor (not shown). Is bent around the pin 12 is inserted into the locking portion (18). When the pin 12 is fixed in position, the crossbar 14 is returned to its original position by the elastic force so that the pin 12 of the actuator 10 is fixed to the locking portion 18. (See FIG. 5). The magnetic head is parked accordingly.

또한 하드디스크 드라이브를 사용하고자 할때 즉 파워온시 코일(26)에 전원이 공급됨으로로써 자기회로가 형성되고 영구자석(22)이 플레밍의 왼손 법칙에 의해 상기 코일(26) 안쪽 방향으로 운동하게 되고 이로인해 가로대(14)가 탄성부(20)를 중심으로 휘어진다. 이때 도시하지 않은 보이스코일(26)모터에 의해 액츄에이터(10)가 회전함에 따라 액츄에이터(10)의 핀(12)이 걸림부(18)에서 빠져 나간다. 이후 코일(26)의 전원은 끊어지고 가로대(14)는 자체 탄력에 의해, 제 4 도에 도시한 바와같이, 다시 평형 상태를 유지하게 된다.In addition, when a hard disk drive is to be used, that is, power is supplied to the coil 26 at power-on, a magnetic circuit is formed, and the permanent magnet 22 moves inward to the coil 26 by Fleming's left hand law. This causes the crossbar 14 to bend about the elastic part 20. At this time, as the actuator 10 is rotated by the voice coil 26 motor (not shown), the pin 12 of the actuator 10 exits from the locking portion 18. After that, the power of the coil 26 is cut off and the crossbar 14 is in equilibrium again as shown in FIG.

상술한 바와같은 본 발병은 하드디스크 드라이브의 액츄에이터 고정장치에 있어서, 자체 탄력을 갖춘 가로대와 그것을 끌어당기는 코일를 갖추어 그것에 의해 상기 액츄에이터를 고정함에 따라 액츄에이터가 영구자석의 영향을 적게받게 효과가 있다. 상기와 같이 액츄에이터의 회전운동에 상기 영구자석의 영향이 줄어듬에 따라 하드디스크의 기록면을 최대한 활용할 수 있어 기록용량의 증가를 가져온 효과가 있다.As described above, in the actuator fixing device of the hard disk drive, it has an effect that the actuator is less affected by the permanent magnet as it has a cross bar having self-elasticity and a coil pulling it, thereby fixing the actuator. As described above, as the influence of the permanent magnet on the rotational movement of the actuator is reduced, the recording surface of the hard disk can be utilized to the maximum, thereby increasing the recording capacity.

제 1 도는 종래의 하드디스크 드라이브의 개략도이다.1 is a schematic diagram of a conventional hard disk drive.

제 2 도는 본 발명에 따른 액츄에이터의 평면도와 측면도이다.2 is a plan view and a side view of an actuator according to the present invention.

제 3 도는 본 발명에 따른 요부의 평면도이다.3 is a plan view of the main portion according to the present invention.

제 4 도 내지 제 6 도는 본 발명에 따른 하드디스크 드라이브 액츄에이터의 고정장치의 작용상태도이다.4 to 6 are functional state diagrams of the fixing device of the hard disk drive actuator according to the present invention.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

10: 액츄에이터 12: 핀10: actuator 12: pin

14: 가로대 16: 경사면14: crossbar 16: slope

18: 걸림부 20: 탄성부18: engaging portion 20: elastic portion

22: 영구자석 24: 나사22: permanent magnet 24: screw

26: 코일26: coil

Claims (1)

하드디스크 드라리브의 액츄에이터를 고정하는 장치에 있어서,In the device for fixing the actuator of the hard disk drive, 일단에 핀(12)을 갖춘 액츄에이터(10)와, 상기 핀(12)이 끼워지는 홈형태의 걸림부(18)와 상기 핀(12)을 상기 걸림부(18)에 안내하는 경사면(16)과 잘 휘어질수 있게 일부분이 잘록한 탄성부(20)를 갖춘 가로대(14)와, 그리고 상기 가로대(14)의 경사면(16)에 근접하여 고정된 영구자석(22)과, 전원을 공급받음에 따라 자기회로가 형성되고 상기 플레밍의 왼손 법칙에 따라 상기 영구자석(22)을 끌어당겨 상기 가로대(14)를 휘게하는 코일(26)로 구성된 것을 특징으로 하는 하드디스크 드라이브의 액츄에이터 고정장치.An actuator 10 having a pin 12 at one end, a groove-shaped locking portion 18 into which the pin 12 is fitted, and an inclined surface 16 for guiding the pin 12 to the locking portion 18. And a crosspiece 14 having an elastic portion 20 which is partially cut so as to bend well, and a permanent magnet 22 fixed close to the inclined surface 16 of the crosspiece 14, and receiving power. Magnetic circuit is formed and the actuator holding device of the hard disk drive, characterized in that consisting of a coil (26) to draw the permanent magnet (22) to bend the crosspiece (14) according to the left hand law of the Fleming.
KR1019950009974A 1995-04-26 1995-04-26 Device for fixing actuator of hard disc drive KR100346232B1 (en)

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KR1019950009974A KR100346232B1 (en) 1995-04-26 1995-04-26 Device for fixing actuator of hard disc drive

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KR1019950009974A KR100346232B1 (en) 1995-04-26 1995-04-26 Device for fixing actuator of hard disc drive

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KR960038553A KR960038553A (en) 1996-11-21
KR100346232B1 true KR100346232B1 (en) 2002-10-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930010736A (en) * 1991-11-28 1993-06-23 정용문 Actuator lock on hard disk drive
US5305170A (en) * 1992-11-13 1994-04-19 Maxtor Corporation Locking assembly for the actuator arm of a hard disk drive
US5319511A (en) * 1993-01-19 1994-06-07 Quantum Corporation Aerodynamic actuator latch with magnetic return spring for hard disk drive
KR950009023A (en) * 1993-09-02 1995-04-21 천병국 Load-sensitive automatic transmission
KR100268764B1 (en) * 1992-11-25 2000-10-16 윤종용 Locking device for actuator in hard disk drive

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930010736A (en) * 1991-11-28 1993-06-23 정용문 Actuator lock on hard disk drive
US5305170A (en) * 1992-11-13 1994-04-19 Maxtor Corporation Locking assembly for the actuator arm of a hard disk drive
KR100268764B1 (en) * 1992-11-25 2000-10-16 윤종용 Locking device for actuator in hard disk drive
US5319511A (en) * 1993-01-19 1994-06-07 Quantum Corporation Aerodynamic actuator latch with magnetic return spring for hard disk drive
KR950009023A (en) * 1993-09-02 1995-04-21 천병국 Load-sensitive automatic transmission

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