KR100440795B1 - Integrated-type latch device of a hard disk drive, which safely fixed to a lower yoke - Google Patents

Integrated-type latch device of a hard disk drive, which safely fixed to a lower yoke Download PDF

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Publication number
KR100440795B1
KR100440795B1 KR1019970024822A KR19970024822A KR100440795B1 KR 100440795 B1 KR100440795 B1 KR 100440795B1 KR 1019970024822 A KR1019970024822 A KR 1019970024822A KR 19970024822 A KR19970024822 A KR 19970024822A KR 100440795 B1 KR100440795 B1 KR 100440795B1
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South Korea
Prior art keywords
extended portion
hard disk
disk drive
lower yoke
latch device
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KR1019970024822A
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Korean (ko)
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KR19990001475A (en
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김윤태
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삼성전자주식회사
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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
    • 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
    • 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

Abstract

PURPOSE: An integrated-type latch device of a hard disk drive is provided to integratedly supply an extended portion by curving the extended portion upward at a predetermined position of a lower yoke, and to form a slot at the extended portion in a direction contacted with an actuator, so that a rising height of the curved extended portion can be within upper/lower yokes. CONSTITUTION: A latch device(7) extends a portion of a lower yoke(54) during a molding process, and bends the extended portion(1) upward. By bending the extended portion(1) of the lower yoke(54), the extended portion(1) is integratedly fabricated. A rising height of the extended portion(1) is restricted within upper/lower yokes, while a surface is formed in a direction faced with a magnet of an actuator. A slot(2) is formed around the surface faced with the magnet for a smooth magnetic flow. The slot(2) is horizontally formed on the surface.

Description

하드디스크 드라이브의 일체형 래치장치Integrated latch unit of the hard disk drive

본 발명은 하드디스크 드라이브에 관한것으로서, 특히 헤드를 파킹존으로 이동시키는 래칭장치에 관한것이다.The present invention relates to a hard disk drive, and more particularly to a latching device for moving a head to a parking zone.

일반적으로 보조기록 저장기기로써 하드디스크 드라이브는 컴퓨터의 중요한 요소이다. 더욱이 현대의 멀티미디어 환경하에서는 하드디스크 드라이브의 고밀도 기록을 통한 고용량화는 불가피하며, 그에 따라 드라이브 업계에서는 새로운 헤드와 미디어의 개발과 아울러 보다 혁신적인 기술개발을 통해 고용량화에 대처하기위한 조금이라도 유리한 고지를 선점하려는 경쟁이 치열하다.In general, as a secondary record storage device, a hard disk drive is an important element of a computer. Moreover, in today's multimedia environment, high capacity is inevitable through high-density recording of hard disk drives, and accordingly, the drive industry is trying to preempt any advantage to cope with high capacity through the development of new heads and media as well as more innovative technologies. The competition is fierce.

또한, 하드디스크 드라이브는 전자장치와 기계장치로 구성된 메카트로닉스제품으로, 디지탈신호를 전자석역할을 하는 헤드로 보내 자화성질을 가진 디스크에 기록함으로서 정보를 기록하고, 재생하는 역할을 하는 보조기억장치중의 하나이다.In addition, hard disk drive is a mechatronics product composed of electronic devices and mechanical devices. The hard disk drive is a secondary memory device that records and reproduces information by sending a digital signal to a head that acts as an electromagnet and recording the information on a disk having magnetic properties. One.

도 1에 도시된 바와같이, 상기 하드디스크 드라이브는 기본적인 토대를 이루는 베이스10(base), 밀봉(sealing)시키는 역할을 하는 미도시된 가스킷(gascket)과 베이스에 나사를 이용하여 조립되는 커버(cover), 디스크20를 지지하고 회전시키는 스핀들 모터30(spindle motor), 헤드42(head)의 위치를 제어하기 위한 액츄에이터40(actuator) 및 보이스 코일 모터(voice coil motor)를 포함하는 VCM 어셈블리와 상기의 기구물들을 제어하고 전기적처리를 위한 가요성 인쇄회로60등으로 구성되어 있다.As shown in FIG. 1, the hard disk drive includes a base 10, which forms a basic foundation, a gasket not shown to serve as a sealing, and a cover assembled using screws to the base. And a VCM assembly including a spindle motor 30 for supporting and rotating the disk 20, an actuator 40 for controlling the position of the head 42, and a voice coil motor. It consists of a flexible printed circuit 60 for controlling instruments and for electrical treatment.

통상적으로 하드디스크 드라이브는 정보를 디스크에 기록 및 판독하기 위해서는 서스펜션44의 단부에 헤드42가 스핀들 모터30에 의해 회전하는 디스크20상에서 일정한 상대위치에 있어야 한다.Typically, the hard disk drive must be at a constant relative position on the disk 20 at which the head 42 rotates by the spindle motor 30 at the end of the suspension 44 in order to write and read information to the disk.

하드디스크 드라이브의 디스크20가 스핀들모터30에 의해 동작하게 되면, 고속회전(보통 4500rpm 이상)을 하는 디스크20와 헤드42의 계면에 발생하는 공기압에 의해 헤드42가 1～3μm정도의 극히 미세한 높이로 부상을 하게된다. 이러한 헤드42와 디스크20사이의 부상높이사이에 담배연기 입자보다도 작은 미세한 이물질이 들어간다면, 디스크의 표면이 손상되고, 헤드를 손상시키기도 한다.When the disk 20 of the hard disk drive is operated by the spindle motor 30, the air pressure generated at the interface between the disk 20 and the head 42, which rotates at high speed (usually 4500 rpm or more), causes the head 42 to have a very fine height of 1 to 3 μm. You get injured. If fine foreign matter smaller than cigarette smoke particles enters between the height between the head 42 and the disk 20, the surface of the disk may be damaged and the head may be damaged.

또한, 외부의 기계적충격이나 진동에 민감하게 반응하여, 헤드와 디스크가충돌하게 되어 디스크와 헤드에 손상을 가져올 수도 있다. 또한, 이러한 외부진동으로 인해 헤드로 부터의 리드 시그날(read signal)에 떨림이 발생하여 잡음(noise)이 발생되기도 한다.In addition, in response to external mechanical shock or vibration, the head and the disk may collide, resulting in damage to the disk and the head. In addition, the external vibration may cause a vibration in the read signal from the head, thereby generating noise.

이러한 단점을 가진 하드디스크 드라이브는 자동파킹 래치장치(auto parking latch system)를 사용하여 데이터 존에서 작동하다가 전원 오프시 드라이브의 헤드가 자동적으로 안전영역인 파킹존22(parking zone)으로 이동시키고 있다.Hard disk drives with such disadvantages operate in the data zone using an automatic parking latch system, and when the power is turned off, the head of the drive is automatically moved to the parking zone 22, which is a safe zone.

상기 자동파킹 래치장치는 전원이 인가되지 않은 상태에서 드라이브의 헤드42가 디스크20상에서 움직임으로 인해 생기는 헤드와 디스크의 손상을 방지하기 위하여 액츄에이터40를 파킹존22(parking zone)에 고정시키는 역할을 하는 것이다.The automatic parking latch device serves to fix the actuator 40 to the parking zone 22 in order to prevent damage to the head and the disk caused by the movement of the head 42 of the drive on the disk 20 while the power is not applied. will be.

도 2에 도시된 바와같이, 이러한 기능을 담당하는 종래의 래치장치의 구성요소를 보면,As shown in Fig. 2, the components of a conventional latch device that is responsible for this function are

상하부 요크52,54가 장착되고, 상기 요크사이에 스페이서가 위치하여 간격을 유지하며, 상기 요크54바닥에 마그네트56를 설치함으로서 제 기능을 수행한다.Upper and lower yokes 52 and 54 are mounted, and spacers are positioned between the yokes to maintain a gap, and a magnet 56 is installed on the bottom of the yoke 54 to perform a function.

이때, 래치58라는 철편을 하부요크54에 고정시키고, 여기에 액츄에이터의 보빈이 상하요크52,54사이에 삽입되어 액츄에이터가 선회축을 중심으로 회전함으로서 접촉 또는 분리되어 헤드의 위치를 제어하였다.At this time, the iron piece of latch 58 was fixed to the lower yoke 54, and the bobbin of the actuator was inserted between the upper and lower yokes 52 and 54 so that the actuator was rotated about the pivot axis to contact or separate, thereby controlling the position of the head.

이와같은 래치는 하부 요크의 구멍54a에 돌기58b가 삽입되어 고정되고, 상부는 상부 요크의 내측면에 접촉되어 위치한다. 래치의 접촉되는 면에는 슬롯58a이 형성되어 자성의 흐름을 원할하게 한다.The latch is inserted into and secured with the projection 58b in the hole 54a of the lower yoke, and the upper portion is positioned in contact with the inner surface of the upper yoke. Slots 58a are formed in the contact surfaces of the latches to facilitate magnetic flow.

그러나, 종래의 래치장치는 하부 요크의 구멍에 래치의 돌기를 삽입하여 고정할 경우, 고정의 불일치로 인하여 래치의 흔들림이 발생된다.However, in the conventional latch device, when the protrusion of the latch is inserted into the hole of the lower yoke and fixed, the latch is shaken due to the mismatch of the fixing.

또한, 금형에 따라 래치에 형성된 슬롯이 상이함으로서, 래치력에 변동이 생기게 된다. 이는 실질적으로 불안정한 파킹 및 서보제어에 불안정한 요소로서 작용하게 되는 문제점을 초래한다.In addition, since slots formed in the latch are different depending on the mold, variations in the latch force occur. This causes a problem of acting as an unstable element for substantially unstable parking and servo control.

본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로서, 본 발명의 목적은 안전하게 하부요크에 고정된 하드디스크 드라이브의 일체형 래치장치를 제공한다.The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention to provide an integrated latch device of a hard disk drive securely fixed to the lower yoke.

본 발명의 다른 목적은 제작 및 조립공정을 용이하게 하는 하드디스크 드라이브의 일체형 래치장치를 제공한다.Another object of the present invention is to provide an integrated latch device of a hard disk drive, which facilitates the manufacturing and assembly process.

상기한 목적들을 달성하기 위하여, 본 발명은 하부 요크의 일측 소정위치에 연장부를 상방으로 구부려 벤딩하여 일체로 제공하고, 상기 상방으로 구부려 벤딩된 연장부에 자성의 흐름을 도와주는 슬롯을 액츄에이터와 접촉하는 방향으로 형성하며, 상기 상방으로 구부려 벤딩된 연장부의 상승높이가 상,하부요크 이내로 함을 특징으로 한다.In order to achieve the above objects, the present invention provides an integrally bent extension part to be bent upward at one side of the lower yoke, and contacting the actuator with a slot to assist the magnetic flow to the bent extension part bent upwards It is formed in the direction, and the rising height of the bent upwardly bent extension is characterized in that within the upper, lower yoke.

도 1은 통상적인 하드디스크 드라이브의 구성상태를 나타내는 사시도1 is a perspective view showing the configuration of a conventional hard disk drive

도 2는 종래의 일실시예에 따른 래치장치를 나타내는 분리사시도Figure 2 is an exploded perspective view showing a latch device according to a conventional embodiment

도 3은 본 발명의 바람직한 일실시예에 따른 하드디스크 드라이브의 래치장치를 나타내는 사시도3 is a perspective view showing a latch device of a hard disk drive according to an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1:연장부 2:슬롯1: Extension part 2: Slot

7:래치장치7: Latch device

이하에서는 첨부도면을 참조하여 본 발명의 가장 바람직한 일실시예를 상세히 설명하기로 한다. 우선, 각 도면을 설명함에 있어, 동일한 구성요소들에 한해서는 비록 다른 도면상에 도시되더라도 가능한 한 동일한 참조부호를 갖는다. 그리고, 본 발명을 설명함에 있어, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우, 그 상세한 설명을 생략한다.Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. First, in describing each of the drawings, only the same components have the same reference numerals as much as possible even if shown on different drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

도 3은 본 발명의 바람직한 일실시예에 따른 하드디스크 드라이브의 일체형 래치장치를 나타내는 사시도이다. 상기 도면을 참조하면,3 is a perspective view illustrating an integrated latch device of a hard disk drive according to an exemplary embodiment of the present invention. Referring to the drawings,

본 발명의 래치장치7는 종전에 래치가 설치된 하부 요크의 일부를 금형가공시 연장하고, 상기 연장부1는 상방으로 벤딩하여 제작한다. 즉, 하부 요크54의 연장부1를 벤딩하여 래치구조로 가공함으로서 일체형으로 만든다.The latch device 7 of the present invention extends a part of the lower yoke, in which the latch has been previously installed, during the mold processing, and the extension part 1 is bent upwards to produce it. That is, the extension part 1 of the lower yoke 54 is bent and processed into a latch structure to make it integral.

이때, 상기 연장부1의 상승높이는 상하부요크사 이내로 한정하며, 액츄에이터의 마그네트와 마주보는 방향에 면을 형성한다.At this time, the rising height of the extension 1 is limited to within the upper and lower yoke yarns, and forms a surface in the direction facing the magnet of the actuator.

액츄에이터의 마그네트가 접촉되는 면부위에도 슬롯2을 형성하여 자성의 흐름을 원할하게 한다. 상기 슬롯2은 상기 면에 수평하게 형성한다.The slot 2 is also formed on the surface where the magnet of the actuator is in contact to facilitate the magnetic flow. The slot 2 is formed horizontally on the surface.

결과적으로 하부 요크54와 래치7가 일체화됨으로서 결합된 래치구조와 하부 요크간의 흔들림이 존재하지 않으며, 균일한 래치 포오스를 기대할 수 있다. 또한 가공을 통한 치수정밀도로 디스크 레이 아웃의 정밀도도 기대할 수 있다.As a result, since the lower yoke 54 and the latch 7 are integrated, there is no shaking between the combined latch structure and the lower yoke, and a uniform latch force can be expected. In addition, the precision of the disk layout can be expected with the dimensional accuracy through machining.

따라서, 항상 래치 포인트(ratch point)를 유지할 수 있으며, 슬롯(slot)의 일정크기에 의해 일정한 래치력(ratch force)의 유지가 가능하다. 이것은 하드디스크 드라이브의 전체적인 작동관점에서 보면, 헤드의 파킹존이나 데이터존의 위치제어가 가능하며, 안정된 서보제어를 가능케 한다.Therefore, a latch point can be maintained at all times, and a constant latch force can be maintained by a constant size of a slot. This makes it possible to control the position of the parking zone and the data zone of the head from the viewpoint of the overall operation of the hard disk drive, and enables stable servo control.

한편, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해서 설명하였으나, 본 발명의 범위에서 벗어나지 않는 한도내에서 여러 가지 변형이 가능함은 당해분야에서 통상의 지식을 가진자에게 있어 자명할 것이다.On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

이상으로 살펴본 바와같이, 본 발명은 하드디스크 드라이브의 래치장치에서 래치 포인트유지가 가능하며, 항상 일정한 헤드의 파킹 및 안정된 서보제어가 가능할뿐만 아니라, 래치 장치의 제작 및 조립공정을 용이하게 할 수 있는 효과가 있다.As described above, the present invention can maintain the latch point in the latch device of the hard disk drive, it is possible not only to allow constant head parking and stable servo control, but also to facilitate the manufacturing and assembly process of the latch device. It works.

Claims (1)

하드디스크 드라이브의 래치장치에 있어서,In the latch device of a hard disk drive, 하부 요크의 일측 소정위치에 연장부를 상방으로 구부려 벤딩하여 일체로 제공하고, 상기 상방으로 구부려 벤딩된 연장부에 자성의 흐름을 도와주는 슬롯을 액츄에이터와 접촉하는 방향으로 형성하며, 상기 상방으로 구부려 벤딩된 연장부의 상승높이가 상,하부요크 이내로 함을 특징으로하는 하드디스크 드라이브의 일체형 래치장치.Bends the extension upwards at a predetermined position on one side of the lower yoke to provide an integral body, and forms a slot for assisting magnetic flow in the bent upwards in contact with the actuator, and bends upwards to bend An integrated latch device of a hard disk drive, characterized in that the rising height of the extended portion is within the upper and lower yokes.
KR1019970024822A 1997-06-16 1997-06-16 Integrated-type latch device of a hard disk drive, which safely fixed to a lower yoke KR100440795B1 (en)

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KR100513378B1 (en) * 1998-05-28 2005-10-26 삼성전자주식회사 Latch mechanism on hard disk drive

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6391862U (en) * 1986-12-03 1988-06-14
JPH03124367A (en) * 1989-10-06 1991-05-27 Mitsubishi Heavy Ind Ltd Continuous brazing and joining method for long-sized member
JPH03124367U (en) * 1990-03-29 1991-12-17
JPH0596952U (en) * 1992-05-26 1993-12-27 シチズン時計株式会社 Latch mechanism of magnetic disk unit
KR940012315A (en) * 1992-11-25 1994-06-23 정용문 Actuator latch on the hard disk drive
JPH06231549A (en) * 1993-02-05 1994-08-19 Toshiba Corp Magnetic disk apparatus, carriage stopper mechanism thereof and manufacture of the same mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6391862U (en) * 1986-12-03 1988-06-14
JPH03124367A (en) * 1989-10-06 1991-05-27 Mitsubishi Heavy Ind Ltd Continuous brazing and joining method for long-sized member
JPH03124367U (en) * 1990-03-29 1991-12-17
JPH0596952U (en) * 1992-05-26 1993-12-27 シチズン時計株式会社 Latch mechanism of magnetic disk unit
KR940012315A (en) * 1992-11-25 1994-06-23 정용문 Actuator latch on the hard disk drive
JPH06231549A (en) * 1993-02-05 1994-08-19 Toshiba Corp Magnetic disk apparatus, carriage stopper mechanism thereof and manufacture of the same mechanism

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