KR100296174B1 - Method of damping vibration and noise of hard disk drive and damping device thereof - Google Patents
Method of damping vibration and noise of hard disk drive and damping device thereof Download PDFInfo
- Publication number
- KR100296174B1 KR100296174B1 KR1019940026386A KR19940026386A KR100296174B1 KR 100296174 B1 KR100296174 B1 KR 100296174B1 KR 1019940026386 A KR1019940026386 A KR 1019940026386A KR 19940026386 A KR19940026386 A KR 19940026386A KR 100296174 B1 KR100296174 B1 KR 100296174B1
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- South Korea
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- vibration
- noise
- hard disk
- disk drive
- spindle motor
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
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- Rotational Drive Of Disk (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
제1도는 본 발명에 따른 하드디스크 드라이브의 베이스의 평면도이다.1 is a plan view of a base of a hard disk drive according to the present invention.
제2도는 제1도의 A-B선을 따라 절단한 단면도이다.2 is a cross-sectional view taken along the line A-B of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 베이스 12 : 홈10: base 12: groove
14 : 스핀들모터 16 : 댐퍼14: spindle motor 16: damper
18 : 감쇠재료 20 : 접착제18 damping material 20 adhesive
22 : 알루미늄판22: aluminum plate
본 발명은 하드디스크 드라이브에 관한 것으로 특히 진동과 소음을 줄이기 위한 댐퍼를 부착한 베이스를 가진 하드디스크 드라이브의 진동 및 소음 감쇠장치에 관한 것이다.The present invention relates to a hard disk drive, and more particularly to a vibration and noise damping device of a hard disk drive having a base with a damper for reducing vibration and noise.
하드디스크 드라이브(HDD: Hard Disk Drive)의 동적 안정성은 제품 성능에 지대한 영향을 미친다. HDD의 운동 부품은 스핀들모터(Spindle Motor)와 액츄에이터(Actuator)이다. 이들 두 부품은 자체 동적 안정성이 확보되어야 함은 물론, 이들과 베이스(Base) 및 커버(Cover)가 조립된 시스템(System) 전체의 동적 안정성이 보장되어야 신뢰성 있는 HDD 제품을 생산할 수 있다.The dynamic stability of a hard disk drive (HDD) has a profound impact on product performance. The moving parts of the HDD are the spindle motor and the actuator. These two parts must not only secure their own dynamic stability, but also ensure the dynamic stability of the entire system where they and the base and cover are assembled to produce reliable HDD products.
베이스(Base)의 과도한 진동은 스핀들모터(Spindle Motor)와 액츄에이터(Actuator)의 상대변위를 유발시켜 위치오차신호(Position Error Signal)에 나쁜 영향을 미친다. 이러한 현상은 HDD의 에러레이트(Error Rate)를 증가시켜, 결과적으로 제품의 신뢰성을 저하시킨다.Excessive vibration of the base causes relative displacement between the spindle motor and the actuator, which adversely affects the position error signal. This phenomenon increases the error rate of the HDD, which in turn lowers the reliability of the product.
한편 HDD의 성능과 신뢰성이 만족할 만한 수준이더라도, 소음이 심하면 소비자의 욕구를 충족시킬 수 없다. 근래에 들어 소비자들은 보다 쾌적한 사무환경을 요구하고 있으므로 조용한 HDD의 개발이 필수적이다. HDD의 소음원으로서는 스핀들 모터(Spindle Motor)와 액츄에이터(Actuator)를 들 수 있다. 스핀들모터(Spindle Motor)만 회전하고 있는 아이들(Idle) 상태는 스핀들모터(Spindle Motor) 만이 소음원이고, 시크(Seek) 시에는 주된 소음원이 액츄에이터(Actuator)이다. 능동적인 소음대책으로 스핀들모터(Spindle Motor)와 액츄에이터(Actuator) 자체의 소음 발생기구를 억제하는 것이 좋으나 현실적으로 불가능하기 때문에 수동적인 방법이 보편적으로 이용되고 있다.On the other hand, even if the performance and reliability of the HDD is satisfactory, the noise is not enough to meet the needs of consumers. In recent years, consumers are demanding a more comfortable office environment, so the development of a quiet HDD is essential. As a noise source of HDD, a spindle motor and an actuator are mentioned. In the idle state in which only the spindle motor is rotating, only the spindle motor is the noise source, and at the time of seek, the main noise source is the actuator. As an active noise countermeasure, it is good to suppress the noise generating mechanisms of the spindle motor and the actuator itself, but the passive method is widely used because it is impossible in reality.
종래 HDD의 몇 모델은 커버(Cover)에 댐퍼(Damper)를 부착하여 커버(Cover)로 부터 발생되는 소음 수준을 낮추고 있다. 많은 양의 소음이 커버(Cover)의 진동으로부터 공기 중으로 방사되기 때문에 댐퍼(Damper)는 소음 감소에 효과적일 수 있으나, 디스크(Disk)와 액츄에이터(Actuator)의 상대운동을 발생시키는, 즉, 위치 오차신호(Plsition Error Signal)를 발생시키는 진동 저감에 대해서는 효율성이 없다.Some models of the conventional HDD are attached to the cover (Damper) to reduce the noise level generated from the cover (Cover). Dampers may be effective in noise reduction because a large amount of noise is radiated into the air from the vibration of the cover, but generates relative motion of the disk and the actuator, i.e., position error. There is no efficiency for vibration reduction which generates a Plsition Error Signal.
왜냐하면, 스핀들모터(Spindle Motor)와 액츄에이터(Actuator)가 베이스(Base)면에 안착되어 있기 때문에, 베이스(Base)의 동적 거동은 위치오차신호(Position Error Signal)에 직접 영향을 주어 제품의 성능과 신뢰성에 직접 영향을 미친다.Because the spindle motor and actuator are mounted on the base surface, the dynamic behavior of the base directly affects the position error signal, Directly affects reliability.
상술한 바와같이 종래의 HDD는 스핀들모터와 액츄에이터의 진동과 소음으로 인하여 제품의 신뢰성을 저하시키는 문제점이 있었다.As described above, the conventional HDD has a problem of lowering the reliability of the product due to vibration and noise of the spindle motor and the actuator.
따라서, 본 발명의 목적은 스핀들모터와 액츄에이터의 진동을 감쇄시키는 댐퍼를 베이스에 설치하여 소음 및 진동을 줄인 하드디스크 드라이브의 진동 및 소음 감쇄 방법 및 장치에 관한 것이다.Accordingly, an object of the present invention is to provide a vibration and noise reduction method and apparatus for a hard disk drive in which a damper for damping vibrations of a spindle motor and an actuator is installed on a base to reduce noise and vibration.
상기와 같은 목적에 따라, 본 발명은 베이스상에 스핀들모터와 액츄에이터를 설치한 하드디스크 드라이브에 있어서, 상기 스핀들모터가 설치된 주변의 베이스상에 형성되는 소정의 홈과, 상기 스핀들모터와 상기 액츄에이터로부터 발생되는 진동과 소음을 줄이기 위하여 상기 홈상에 접착제에 의해 설치되는 댐퍼로 구성됨을 특징으로 한다.In accordance with the above object, the present invention is a hard disk drive provided with a spindle motor and an actuator on a base, comprising: a predetermined groove formed on a peripheral base where the spindle motor is installed, and from the spindle motor and the actuator. It characterized in that it consists of a damper installed by the adhesive on the groove in order to reduce the vibration and noise generated.
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 진동 및 소음 감쇄장치인 댐퍼를 베이스에 설치한 것을 보인 평면도가 제1도에, 그리고 그에 대한 단면도가 제2도에 도시되어 있다.A plan view showing a damper, a vibration and noise damping device for a hard disk drive according to the present invention, is shown in FIG. 1 and a cross-sectional view thereof in FIG.
HDD의 베이스(10)(Base)는 스핀들모터(14)(Spindle Motor)와 액츄에이터(Actuator)를 고정시켜 주는 기초에 해당하기 때문에, 위치오차신호(Position Error Signal)를 가능한한 작게해 주기 위해서 충분한 강성을 가져야 한다.Since the base 10 of the HDD corresponds to the basis for fixing the spindle motor 14 and the actuator, it is sufficient to make the position error signal as small as possible. Must have rigidity
베이스(10)에 스핀들모터(14)와 액츄에이터를 설치한 본 발명에 따른 하드디스크 드라이브는, 제1도와 제2도에 도시한 바와같이, 스핀들모터(14)와 액츄에이터로 부터 발생되는 진동과 소음을 줄이기 위한 댐퍼(16)(Damper)와, 댐퍼(16)를 조립하기 위한 홈(12)을 가진 베이스(10)와, 베이스(10)의 홈(12)에 상기 댐퍼(16)를 고정하기 위한 접착제(20)를 구비한다.In the hard disk drive according to the present invention in which the spindle motor 14 and the actuator are installed on the base 10, as shown in FIGS. 1 and 2, vibration and noise generated from the spindle motor 14 and the actuator are shown. Fixing the damper 16 to the base 10 having a damper 16 for reducing the pressure, the groove 12 for assembling the damper 16, and the groove 12 of the base 10. It is provided with an adhesive 20 for.
댐퍼(16)는 진동에너지를 효과적으로 흡수하기 위하여 알루미늄 판(Aluminum plate)과 감쇠재료(18)(Damping Material)와 그리고 접착제(20)로 구성된다. 감쇠 재료는 진동 감쇄효과가 큰 재질로 한다. 예를 들면 고무(Rubber) 또는 이어(Ear)사의 C-2003-025와 같은 재질은 진동을 흡수하는데 우수한 효과를 발휘한다.The damper 16 is composed of an aluminum plate, an damping material 18, and an adhesive 20 to effectively absorb vibration energy. The damping material is a material having a large vibration damping effect. For example, a material such as Rubber or Ear C-2003-025 has an excellent effect on absorbing vibration.
상기와 같은 구성을 가지는 본 발명에 따른 하드디스크 드라이브의 진동 및 소음 감쇄방법 및 감쇄장치는, 제2도에 도시한 바와같이, 베이스(10)의 홈(12)에 접착제(20)로 감쇄재료(18)를 부착한다. 감쇄재료(18)에는 진동에너지를 효가적으로 흡수하기 위하여 알루미늄 판(Aluminum Plate)을 접착제(20)로 부착한다.Vibration and noise attenuation method and attenuation device of the hard disk drive according to the present invention having the configuration as described above, as shown in Figure 2, the attenuation material with the adhesive 20 in the groove 12 of the base 10 Attach (18). An aluminum plate is attached to the damping material 18 with an adhesive 20 to efficiently absorb vibration energy.
상술한 바와 같이 조립된 본 발명에 따른 하드디스크 드라이브의 진동 및 소음 감쇄방법 및 장치는, 액츄에이터와 스핀들모터(14)에서 발생된 진동을 다음과 같이 감쇄시킨다. 즉, 진동 및 소음은 베이스(10)의 홈(12)에 부착된 댐퍼(16)에 전달된다.Vibration and noise attenuation method and apparatus for a hard disk drive according to the present invention assembled as described above attenuates the vibration generated in the actuator and the spindle motor 14 as follows. That is, vibration and noise are transmitted to the damper 16 attached to the groove 12 of the base 10.
상기 진동은 접착층과 감쇄재료(18)를 통해 알루미늄판(22)으로 전달된다. 따라서 베이스(10)(Base)의 진동에너지중 일부는 알루미늄판(22)(Aluminum Plate)의 운동에너지로 변환되고, 나머지는 감쇄재료(18)(Damping Material)와 접착제(20)(Adhesive) 층의 감쇄 메카니즘(Mechanism)에 의해 시간이 지남에 따라 소멸된다.The vibration is transmitted to the aluminum plate 22 through the adhesive layer and the damping material 18. Therefore, some of the vibration energy of the base 10 is converted into the kinetic energy of the aluminum plate 22, and the rest of the damping material 18 and the adhesive 20 layer. It is extinguished over time by the attenuation mechanism of.
이상에서 살펴본 바와같은 본 발명은, 하드디스크 드라이브에 있어서 댐퍼를 베이스에 설치함에 따라 액츄에이터와 스핀들모터로부터 발생되는 소음 및 진동을 감쇄시킬 수 있어 조용하면서도 HDD 전체계의 진동특성을 향상시킨 효과가 있다.As described above, the present invention can reduce the noise and vibration generated from the actuator and the spindle motor by installing the damper in the base of the hard disk drive, thereby improving the vibration characteristics of the entire HDD system. .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940026386A KR100296174B1 (en) | 1994-10-14 | 1994-10-14 | Method of damping vibration and noise of hard disk drive and damping device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940026386A KR100296174B1 (en) | 1994-10-14 | 1994-10-14 | Method of damping vibration and noise of hard disk drive and damping device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960015565A KR960015565A (en) | 1996-05-22 |
| KR100296174B1 true KR100296174B1 (en) | 2001-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940026386A Expired - Fee Related KR100296174B1 (en) | 1994-10-14 | 1994-10-14 | Method of damping vibration and noise of hard disk drive and damping device thereof |
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| KR (1) | KR100296174B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919124B1 (en) | 2008-04-10 | 2009-09-25 | 주식회사 제일테크노쎌 | Damping rubber bonding device of damper for hard disk drive |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100468703B1 (en) * | 1997-12-31 | 2005-04-06 | 삼성전자주식회사 | Acoustic base damper on hard disk drive |
| KR100591804B1 (en) * | 1999-03-27 | 2006-06-20 | 삼성전자주식회사 | Anti-vibration structure of spindle motor |
| US6583965B1 (en) * | 1999-04-21 | 2003-06-24 | Seagate Technology Llc | Inertia ring for improved rotational vibration performance |
| KR100720089B1 (en) * | 2000-09-28 | 2007-05-18 | 삼성전자주식회사 | Manufacturing method of contact structure of wiring, manufacturing method of thin film transistor substrate including the same and sputtering equipment used therein |
| US6717768B2 (en) * | 2001-10-16 | 2004-04-06 | Samsung Electronics Co., Ltd. | Airflow damper for reducing airborne noise and vibration in an information storage device |
| KR101020678B1 (en) * | 2008-03-10 | 2011-03-09 | (주)대영오앤이 | Disk Damper for Hard Disk Drives |
| KR101010543B1 (en) * | 2008-03-10 | 2011-01-24 | (주)대영오앤이 | Disk Damper for Hard Disk Drives |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910012583A (en) * | 1989-12-11 | 1991-08-08 | 원본 미기재 | Hygienic fit |
| KR940001382A (en) * | 1992-06-05 | 1994-01-11 | 카알 실버맨 | Polyimide processing method for integrated circuit protection |
-
1994
- 1994-10-14 KR KR1019940026386A patent/KR100296174B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910012583A (en) * | 1989-12-11 | 1991-08-08 | 원본 미기재 | Hygienic fit |
| KR940001382A (en) * | 1992-06-05 | 1994-01-11 | 카알 실버맨 | Polyimide processing method for integrated circuit protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919124B1 (en) | 2008-04-10 | 2009-09-25 | 주식회사 제일테크노쎌 | Damping rubber bonding device of damper for hard disk drive |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960015565A (en) | 1996-05-22 |
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