CN100399425C - Hand disk circuit breaking protection device and method - Google Patents
Hand disk circuit breaking protection device and method Download PDFInfo
- Publication number
- CN100399425C CN100399425C CNB2005100990642A CN200510099064A CN100399425C CN 100399425 C CN100399425 C CN 100399425C CN B2005100990642 A CNB2005100990642 A CN B2005100990642A CN 200510099064 A CN200510099064 A CN 200510099064A CN 100399425 C CN100399425 C CN 100399425C
- Authority
- CN
- China
- Prior art keywords
- hard disk
- power supply
- tripper
- circuit breaking
- electronic installation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Storage Device Security (AREA)
Abstract
The HD power-off protection device comprises a detector and a braking device. Wherein, when outside force drives HD, the detector detects the HD acceleration; the braking device decides whether cuts off the power according to acceleration.
Description
Technical field
The present invention is relevant for a kind of hard disk protection device, and particularly relevant for a kind of hand disk circuit breaking protection device and method.
Background technology
Portable electronic, computer product yielded unusually brilliant results in market in recent years, include mobile phone, personal digital assistant (personal digital assistant, PDA), products such as MP3 player, carry-on dish, mobile computer and digital camera, because its compact design extensively is subjected to consumer's hobby.Along with the increase of Digital Media demand, when user's desire backups storage with the picture liked or film file, can realize by the hard disk that is equipped with in the portable type electronic product.
On the structure, hard disk comprises magnetic head reading-writing arm, Spindle Motor and dish (platter).Dish includes a plurality of disk regions (sector).Spindle Motor with so that the dish fast rotational, in order to the data in the magnetic head reading-writing arm reading disk district.In order to increase the memory space of hard disk, hard disk generally includes a plurality of dishes, and the magnetic head reading-writing arm must reach accurate moving with reading of data correctly fast.Also therefore, under the state of high speed rotating, any outside power, all may cause the read error of data.
Yet conventional hard there is no the safeguard measure that provides perfect.When hard disk is on-stream when being dropped by eminence accidentally, the suffered impact of hard disk will cause it physically to reach structural damage, cause the data destroying that is stored in the hard disk.How to protect the hard disk that drops, run off, one of problem of being endeavoured for the present technique field to avoid data.
Summary of the invention
In view of this, purpose of the present invention can automatically stop the power supply to hard disk when hard disk drops, to avoid the loss of hard disc data.
According to purpose of the present invention; propose a kind of hand disk circuit breaking protection device, in order to couple with a hard disk, this hard disk is used in the electronic installation; the power supply that this electronic installation provided transfers to hard disk by this hand disk circuit breaking protection device, and this hand disk circuit breaking protection device comprises:
One detecting device, when an external force made this hard disk motion, this detecting device was in order to detect an acceleration of this hard disk; And
One tripper couples with this detecting device, whether turn-offs the power supply of this hard disk that this electronic installation is offered with decision according to the size of this acceleration.
When hard disk was turned off, its magnetic head reading-writing arm moved to the outer position of dish of hard disk automatically.
According to another object of the present invention, a portable electron device is proposed, comprising:
One hard disk;
One power supply unit is in order to provide a power supply to this hard disk;
One control module is in order to control this hard disk;
One hand disk circuit breaking protection device couples with this hard disk, this power supply unit and this control module respectively, and the power supply that this power supply unit provided is sent to this hard disk by this hand disk circuit breaking protection device, and this hand disk circuit breaking protection device comprises:
One detecting device, when an external force made this hard disk motion, this detecting device was in order to detect an acceleration of this hard disk; And
One tripper couples with this detecting device, whether turn-offs the power supply of this hard disk that this power supply unit is offered with decision according to the size of this acceleration.With
According to a further object of the present invention; other proposes a kind of method of hand disk circuit breaking protection, is used for an electronic installation, and the power supply that this electronic installation provided is sent to hard disk by this hand disk circuit breaking protection device; this electronic installation comprises a detecting device, a tripper and a hard disk, and this method comprises:
When an external force makes this hard disk motion, utilize this detecting device to detect an acceleration of this hard disk; And
Whether this tripper turn-offs the power supply of this hard disk that this electronic installation offers according to the size decision of this acceleration.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail as follows:
Description of drawings
Fig. 1 represents the calcspar according to a kind of portable electron device relevant portion of a preferred embodiment of the present invention.
Fig. 2 represents the synoptic diagram according to the hard disk of a preferred embodiment of the present invention.
Fig. 3 represents the synoptic diagram according to the portable electron device of first embodiment of the invention.
Fig. 4 represents the synoptic diagram according to the hand disk circuit breaking protection device of second embodiment of the invention.
Fig. 5 represents the method flow diagram according to the hand disk circuit breaking protection of a preferred embodiment of the present invention.
The main element symbol description
100: portable electron device
110,316,410: hand disk circuit breaking protection device
112,316 (2): detecting device
114,316 (1): tripper
120: hard disk
130,314: power supply unit
140,312: control module
122,420: dish
124: Spindle Motor
126: actuator
128: the magnetic head reading-writing arm
310: motherboard
400: mobile computer
430: connector
440: power lead
450: signal wire
A, B: the position of magnetic head reading-writing arm
P: power supply
RS: reset signal
CS: control signal
Embodiment
Please refer to Fig. 1, its expression is according to the calcspar of a kind of portable electron device relevant portion of a preferred embodiment of the present invention.In the portable electron device 100; comprise hand disk circuit breaking protection device 110, hard disk 120, power supply unit 130 and control module 140; wherein hand disk circuit breaking protection device 110 couples with hard disk 120, power supply unit 130 and control module 140 respectively, by the hand disk circuit breaking protection device 110 that is connected and fixed with hard disk 120 state with detecting hard disk 120.Hand disk circuit breaking protection device 110 also comprises detecting device 112 and tripper 114, and detecting device 112 couples with tripper 114 and control module 140 respectively.Detecting device 112 can for example be micro electronmechanical gravity detector (MEMS G-Force Sensor).
Detecting device 112 by detecting hard disk 120 acceleration magnitude and direction to judge whether conducting of tripper 114.When the hard disk in the portable electron device 100 120 was influenced by external force, detecting device 112 detected the size of the acceleration of hard disk 120.That is, when portable electron device 100 fell accidentally, its acceleration can change to some extent.Therefore, tripper 114 can detect the variation of this acceleration, and makes comparisons with the accekeration in the preset range; When the size of acceleration is in outside this preset range, the acceleration overgauge value of representing hard disk 120 to be born.Therefore, tripper 114 switches to not on-state, provides to the power supply of hard disk 120 with shutoff, makes hard disk 120 stop the operation of data access, does not cause the damage of data when guaranteeing that with this hard disk is dropped.
After hard disk 120 is maintained at off-position, if 1) the reset signal RS that produces of control module 140, or 2) for the unlatching again of the system power supply (not shown) of portable electron device 100, hard disk 120 is accepted power supply again.That is to say, set up, and guarantee that simultaneously when promptly the acceleration of hard disk 120 is in the above-mentioned preset range, hard disk 120 will be opened again under the situation of security of hard disk 120 in one of aforementioned two conditions.
Please refer to Fig. 2, the synoptic diagram of its represented hard disk 120 according to a preferred embodiment of the present invention.Hard disk 120 comprises dish 122, Spindle Motor (spindle motor) 124, actuator (actuator) 126 and magnetic head reading-writing arm 128.Spindle Motor 124 is in order to rolling disc 122; Actuator 126 makes it in moving between footpath and the external diameter within the dish 122, to read the data of different magnetic patch district (not shown) on the dish 122 in order to drive magnetic head reading-writing arm 128.
When the power supply that provides to hard disk 120 was provided for tripper 114, magnetic head reading-writing arm 128 stopped to read, and Spindle Motor 124 shut-down operations.At this moment, magnetic head reading-writing arm 128 coils 122 zone certainly to be removed because of power supply is turned off, and for example moves on to position B by the position A among Fig. 2, makes the dish 122 of 128 pairs of magnetic head reading-writing arms in running up produce scratches to avoid the external force vibrations, causes the damage of data.When power supply was opened again, 128 of magnetic head reading-writing arms returned from position B in the zone of dish 122 to carry out data access.
In one first embodiment of the present invention, hand disk circuit breaking protection device is disposed on the motherboard of portable electron device.Please refer to Fig. 3, it is represented to be synoptic diagram according to the portable electron device of the first embodiment of the present invention.Portable electron device 300 comprises motherboard 310 and hard disk 320, and hard disk 320 is connected and fixed on motherboard 310.Motherboard 310 disposes control module 312, power supply unit 314 and hand disk circuit breaking protection device 316, and wherein hand disk circuit breaking protection device 316 couples with hard disk 320, power supply unit 314 and control module 312 respectively.Hand disk circuit breaking protection device 316 further comprises tripper 316 (1) and detecting device 316 (2); wherein tripper 316 (1) couples with hard disk 320, power supply unit 314 and detecting device 316 (2) respectively, and detecting device 316 (2) more couples with control module 312.Control module 312 control hand disk circuit breaking protection devices 316, hard disk acceleration that is got so that detecting device 316 (2) detects and preset value are relatively.That is, in the time of outside the acceleration that is detected is in a preset range, control module 312 makes tripper 316 (1) power down unit 314 provide to the power supply of hard disk 320 by detecting device 316 (2).When portable electron device falls accidentally, switch to not on-state by making tripper 316 (2), can realize preventing that power supply from reaching the purpose of hard disk 320.
In one second embodiment, hand disk circuit breaking protection device is a modular unit.Its reason is to make hand disk circuit breaking protection device not need to be controlled by extra drive or firmware for providing design to go up preferable elasticity.Please refer to Fig. 4, its represented hand disk circuit breaking protection device synoptic diagram according to second embodiment of the invention.Hand disk circuit breaking protection device for example is disposed in the portable electron device of a mobile computer 400.Mobile computer 400 comprises hard disk 420, hand disk circuit breaking protection device 410, power lead 440, signal wire 450 and motherboard 310, and wherein hand disk circuit breaking protection device 410 couples with hard disk 420, power lead 440 and signal wire 450 respectively.Control module 312 and power supply unit 314 are disposed on the motherboard 310.Hard disk 420 has a connector 430.Modular hand disk circuit breaking protection device 410 1 ends are coupled to hard disk 420 by this connector 430, are connected and fixed with hard disk 420, detect the state of hard disk 420 with this.And the other end of hand disk circuit breaking protection device 410 is connected to power lead 440 and signal wire 450.450 of power lead 440 and signal wires are coupled to power supply unit 314 and control module 312 respectively.Influence when hard disk 420 is subjected to external force, and the hard disk acceleration that is detected is when being in outside the preset range, hand disk circuit breaking protection device 410 will switch to not on-state, and the electrical transmission with between hard disk 420 and power lead 440 makes hard disk 420 power removes.Shown in the above embodiments (among Fig. 3), at this moment, the signal transmission between control module 312 and the hard disk 420 also is turned off simultaneously.
Please refer to Fig. 5, it is represented to be method flow diagram according to the hand disk circuit breaking protection of a preferred embodiment of the present invention.This method can be applicable to portable electron device for example shown in Figure 1 100, or the less electronic installation that is moved, for example desktop PC.This method starts from step 510, when external force makes hard disk 120 motions, utilizes the detecting device 112 of fixedlying connected with hard disk 120 to detect the acceleration of hard disk 120.Then, in step 520, judge whether the size of institute's sense acceleration is in the preset range.If not, in step 530, then turn-off the power supply of electronic installation 100 hard disk that offers 120.Then, in step 540, when hard disk 120 non-transformers were imported, when promptly hard disk was turned off, its magnetic head reading-writing arm 128 moved to dish 122 position in addition of hard disk 120.With this, can avoid the disk region of 128 pairs of dishes 122 of magnetic head reading-writing arm to scrape damage, cause the damage of data.
Detecting device (accelerometer) in order to the acceleration that detects weight is a technique known.The design of accelerometer can be used " Hooke's law " and be realized.For instance, weight is fixed on the spring structure, again spring structure is connected object to be quickened.When waiting to quicken movement of objects, can elongate spring; Therefore, the elongation of measuring spring just can calculate the acceleration that is applied.And measure the distance of elongation, can for example use the principle of work of electric capacity.That is, just can learn displacement easily by the capacitance of measuring electric capacity.
Disclosed hand disk circuit breaking protection device of the above embodiment of the present invention and method; acceleration by detecting device detection hard disk cooperates the design of tripper, turn-offs the power supply of hard disk in due course; can avoid portable electron device effectively when falling accidentally, cause the situation of the damage of hard disk.
In sum; though the present invention with preferred embodiment openly as above; right its is not in order to limit the present invention; any those skilled in the art; under the situation that does not break away from the spirit and scope of the present invention; can change and modification, so protection scope of the present invention is as the criterion with the claim institute restricted portion that is proposed.
Claims (15)
1. hand disk circuit breaking protection device, in order to couple with a hard disk, this hard disk is used in the electronic installation, and the power supply that this electronic installation provided is sent to this hard disk by this hand disk circuit breaking protection device, and this hand disk circuit breaking protection device comprises:
One detecting device, when an external force made this hard disk motion, this detecting device was in order to detect an acceleration of this hard disk; And
One tripper couples with this detecting device, whether turn-offs the power supply of this hard disk that this electronic installation is offered with decision according to the size of this acceleration.
2. hand disk circuit breaking protection device as claimed in claim 1, wherein, in the time of outside this acceleration is in a preset range, the power supply that provides to this hard disk is provided this tripper.
3. hand disk circuit breaking protection device as claimed in claim 1; wherein, turn-off the power supply of this hard disk in this tripper after, receive a reset signal of this electronic installation when this tripper; or this electronic installation is when opening again, and this electronic installation provides power supply to this hard disk again.
4. hand disk circuit breaking protection device as claimed in claim 1; wherein this electronic installation has a motherboard; this hand disk circuit breaking protection device is in order to be disposed at this motherboard; the power supply that this electronic installation provided is sent to this hard disk by this tripper; when this not conducting of tripper, this power supply is turned off.
5. hand disk circuit breaking protection device as claimed in claim 1; wherein this hand disk circuit breaking protection device is modular device; this hard disk has a connector; one end of this tripper is connected to a power lead; the other end of this tripper is connected to this connector; the power supply that this electronic installation provided is sent to this hard disk by this power lead, this tripper and this connector, and when this not conducting of tripper, this power supply is turned off.
6. a portable electron device comprises:
One hard disk;
One power supply unit is in order to provide a power supply to this hard disk;
One control module is in order to control this hard disk;
One hand disk circuit breaking protection device couples with this hard disk, this power supply unit and this control module respectively, and the power supply that this power supply unit provided is sent to this hard disk by this hand disk circuit breaking protection device, and this hand disk circuit breaking protection device comprises:
One detecting device, when an external force made this hard disk motion, this detecting device was in order to detect an acceleration of this hard disk; And
One tripper couples with this detecting device, whether turn-offs the power supply of this hard disk that this power supply unit is offered with decision according to the size of this acceleration.
7. portable electron device as claimed in claim 6, wherein this hard disk comprises a magnetic head reading-writing arm, a Spindle Motor and a dish, this magnetic head reading-writing arm is in order to read the data that are stored in this dish, this Spindle Motor is in order to rotate this dish, in the time of outside this acceleration is in a preset range, the power supply that provides to this hard disk is provided for this tripper, makes this magnetic head reading-writing arm and this Spindle Motor shut-down operation, and makes this magnetic head reading-writing arm move to this dish position in addition.
8. portable electron device as claimed in claim 6; wherein this portable electron device also comprises a motherboard; this control module, this power supply unit and this hand disk circuit breaking protection device are disposed at this motherboard; this hand disk circuit breaking protection device is controlled by this control module; the power supply that this power supply unit provides is sent to this hard disk by this tripper; when this not conducting of tripper, this power supply is turned off.
9. portable electron device as claimed in claim 6; wherein this hand disk circuit breaking protection is modular device; this hard disk has a connector; one end of this tripper is connected to a power lead; the other end of this tripper is connected to this hard disk; the power supply that this power supply unit provided is sent to this hard disk by this power lead, this tripper and this connector, and when this not conducting of tripper, this power supply is turned off.
10. device as claimed in claim 6, wherein, turn-off the power supply of this hard disk in this tripper after, when this tripper receives a reset signal of this control module, or this electronic installation is when opening again, this power supply unit provides power supply to this hard disk again.
11. the method for a hand disk circuit breaking protection is used for an electronic installation, the power supply that this electronic installation provided is sent to this hard disk by this hand disk circuit breaking protection device, and this electronic installation comprises a detecting device, a tripper and a hard disk, and this method comprises:
When an external force makes this hard disk motion, utilize this detecting device to detect an acceleration of this hard disk; And
Whether this tripper turn-offs the power supply of this hard disk that this electronic installation offers according to the size decision of this acceleration.
12. method as claimed in claim 11 also comprises:
Judge whether this acceleration is within the preset range; And
If this acceleration is in outside this preset range, utilize the power supply that this tripper turn-offs to be provided to this hard disk, if this acceleration is within this preset range, then continue this hard disk power supply.
13. method as claimed in claim 11 also comprises: turn-off the power supply of this hard disk in this tripper after, if this tripper receives a reset signal of this electronic installation, or this electronic installation is when opening again, and this tripper provides power supply to this hard disk again.
14. method as claimed in claim 11 also comprises:
This tripper of a motherboard by being disposed at this electronic installation transmits power supply that this electronic installation provides to this hard disk, when this not conducting of tripper, turn-offs this power supply.
15. method as claimed in claim 11 also comprises:
Transmit power supply that a power lead of this electronic installation provided to this hard disk by modular this tripper, when this not conducting of tripper, turn-off this power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100990642A CN100399425C (en) | 2005-09-06 | 2005-09-06 | Hand disk circuit breaking protection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100990642A CN100399425C (en) | 2005-09-06 | 2005-09-06 | Hand disk circuit breaking protection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1928993A CN1928993A (en) | 2007-03-14 |
| CN100399425C true CN100399425C (en) | 2008-07-02 |
Family
ID=37858927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100990642A Expired - Fee Related CN100399425C (en) | 2005-09-06 | 2005-09-06 | Hand disk circuit breaking protection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100399425C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368607B (en) * | 2011-10-27 | 2014-10-22 | 山东超越数控电子有限公司 | Power-off protection system for electronic product drop process |
| US20150032407A1 (en) * | 2013-07-23 | 2015-01-29 | Western Digital Technologies, Inc. | Falling state determination for data storage device |
| CN111341352B (en) * | 2020-03-03 | 2021-11-02 | 贵州倍易通科技有限公司 | Hard disk emergency equipment for dealing with sudden power failure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053780U (en) * | 1989-06-29 | 1990-02-28 | 吴成峰 | Self-returning and rise-fall area device of warm-disk driver's magnetic head |
| CN2078482U (en) * | 1990-10-20 | 1991-06-05 | 徐长征 | Protector for microcomputer hardware disc |
| JPH103362A (en) * | 1996-06-17 | 1998-01-06 | Tec Corp | Magnetic disk device |
| WO2003019559A1 (en) * | 2001-08-22 | 2003-03-06 | Seagate Technology Llc | Contact detection and calibration for electrostatic fly height control in a disc drive |
| JP2005135483A (en) * | 2003-10-29 | 2005-05-26 | Nec Infrontia Corp | Protection mechanism for magnetic disk device |
-
2005
- 2005-09-06 CN CNB2005100990642A patent/CN100399425C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053780U (en) * | 1989-06-29 | 1990-02-28 | 吴成峰 | Self-returning and rise-fall area device of warm-disk driver's magnetic head |
| CN2078482U (en) * | 1990-10-20 | 1991-06-05 | 徐长征 | Protector for microcomputer hardware disc |
| JPH103362A (en) * | 1996-06-17 | 1998-01-06 | Tec Corp | Magnetic disk device |
| WO2003019559A1 (en) * | 2001-08-22 | 2003-03-06 | Seagate Technology Llc | Contact detection and calibration for electrostatic fly height control in a disc drive |
| JP2005135483A (en) * | 2003-10-29 | 2005-05-26 | Nec Infrontia Corp | Protection mechanism for magnetic disk device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1928993A (en) | 2007-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7450332B2 (en) | Free-fall detection device and free-fall protection system for a portable electronic apparatus | |
| JP5064235B2 (en) | System and method for fall detection | |
| US5333138A (en) | Apparatus and method for preventing data corruption in disk drives from mechanical shock during write operations | |
| EP1612565B1 (en) | Free-fall detection device and free-fall protection system for a portable electronic apparatus | |
| EP1659583A2 (en) | Device for operating a hard disk drive of a mobile communication terminal during impact and a method thereof | |
| US8074016B2 (en) | Data loss prevention during a fall of a storage device | |
| US20070162238A1 (en) | Programming a sensitivity level into an inertial sensor based on a proxy of whether a system is in transit | |
| CN100399425C (en) | Hand disk circuit breaking protection device and method | |
| CN105229555A (en) | The operation of mass-memory unit | |
| US20050088773A1 (en) | Shock protection apparatus for hard disk drive | |
| US20060215299A1 (en) | Shock-resistant magnetic storage medium for a portable electronic device | |
| US20070030586A1 (en) | Apparatus and method for hard disk protection | |
| US20050174676A1 (en) | Method and device for data protection | |
| JP2002174641A (en) | Fall detection mechanism | |
| CN201838319U (en) | Portable equipment with electronic control system | |
| JP4581610B2 (en) | Portable equipment | |
| CN1815619A (en) | Magnetic storage device for preventing falling damage and electronic product having same | |
| TWI314725B (en) | ||
| KR20060121368A (en) | Apparatus and method for shock detecting using acceleration sensor | |
| US7548390B2 (en) | HDD write control method and apparatus | |
| US20110153933A1 (en) | Data storage on writeable removable media in a computing device | |
| US20210166729A1 (en) | Storage apparatus | |
| JP4308116B2 (en) | Data playback device | |
| KR100650517B1 (en) | Shock-resistant magnetic storage medium for a portable electronic device | |
| CN2932558Y (en) | Storage device capable of protection and the protection system of the storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20150906 |
|
| EXPY | Termination of patent right or utility model |