KR20130016559A - Base assembly for motor and hard disk drive including the same - Google Patents

Base assembly for motor and hard disk drive including the same Download PDF

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Publication number
KR20130016559A
KR20130016559A KR1020110078574A KR20110078574A KR20130016559A KR 20130016559 A KR20130016559 A KR 20130016559A KR 1020110078574 A KR1020110078574 A KR 1020110078574A KR 20110078574 A KR20110078574 A KR 20110078574A KR 20130016559 A KR20130016559 A KR 20130016559A
Authority
KR
South Korea
Prior art keywords
base
motor
lamp
fastening
base assembly
Prior art date
Application number
KR1020110078574A
Other languages
Korean (ko)
Inventor
이현철
최태영
Original Assignee
삼성전기주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020110078574A priority Critical patent/KR20130016559A/en
Publication of KR20130016559A publication Critical patent/KR20130016559A/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • 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
    • G11B21/02—Driving or moving of 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
    • 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
    • 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

Motor base assembly according to an embodiment of the present invention is a motor base; A lamp disposed on the motor base to park the magnetic head when the disk stops rotating; And at least one fastening part protruding from the lamp to be fastened to the base to restrain the movement of the lamp.

Description

Base assembly for motor and hard disk drive including the same

The present invention relates to a motor base assembly and a hard disk drive including the same. More particularly, the present invention relates to a motor base assembly and a hard disk drive including the same in which a coupling structure between a base and a lamp is improved.

A hard disk drive (HDD), which is one of information storage devices of a computer, is a device that reproduces data stored on a disk using a magnetic head or records data on a disk.

In such a hard disk drive, a base is provided with a head drive unit, that is, a head stack assembly (HSA), which allows the magnetic head to be moved on a disc, and the magnetic head rises a predetermined height from the recording surface of the disc by the head drive unit. It performs its function while moving to the desired position.

Here, the magnetic head can be stably disposed above and below the disk by a lamp coupled to the base, and when the disk is stopped, the magnetic head is parked in the lamp.

That is, since the lamp guides the position of the magnetic head to read the data of the disk, it should be firmly fixed while maintaining parallelism to the base.

However, since the conventional coupling method of the lamp and the base is coupled using only screw fastening, there was a possibility that a defect may occur due to foreign matters due to screw fastening.

In addition, the parallelism of the lamp is changed due to an external impact or the like, which causes many problems in the parking of the magnetic head and the accuracy of data reading.

Therefore, in the hard disk drive (HDD), the research to improve the parallelism by improving the coupling structure of the lamp and the base to maximize the performance and life is urgently urgent situation.

It is an object of the present invention to enable accurate positioning of the base of the lamp, and to minimize the fastening means of the lamp and the base to reduce the process and parts to maximize the productivity of the motor base assembly and a hard disk comprising the same To provide a drive.

Motor base assembly according to an embodiment of the present invention is a motor base; A lamp disposed on the motor base to park the magnetic head when the disk stops rotating; And at least one fastening part protruding from the lamp to be fastened to the base to restrain the movement of the lamp.

The motor base of the motor base assembly according to an embodiment of the present invention may be formed with a fastening receiving portion for fastening the fastening portion.

The fastening portion of the base assembly for a motor according to an embodiment of the present invention may penetrate the fastening accommodation portion.

An end of the fastening portion penetrating the fastening accommodation portion of the base assembly for a motor according to an embodiment of the present invention may be coupled to a bottom surface of the base for the motor by fusion or riveting.

The fastening part of the base assembly for a motor according to an embodiment of the present invention may be fixed to the fastening receiving portion.

The fastening accommodation portion of the base assembly for a motor according to an embodiment of the present invention may be formed to protrude while the upper surface of the base is recessed and the lower surface is sealed.

The motor base of the motor base assembly according to an embodiment of the present invention may be formed by press working.

Motor base assembly according to an embodiment of the present invention is formed with a coupling hole formed in communication with the lamp and the motor base, the coupling portion is fastened to the coupling hole so that the lamp is fixed to the base for the motor Can be.

The coupling portion and the coupling hole of the base assembly for a motor according to an embodiment of the present invention may be coupled by screwing.

Hard disk drive according to another embodiment of the present invention is disposed on the base for the motor and at least protruding from the lamp and fastened to the base to restrain the movement of the lamp and the lamp for parking the magnetic head when the disk stops rotating A base assembly for a motor including one fastening portion; A spindle motor coupled to the motor base to rotate the disk; A magnetic head for recording and reproducing data of the disk; And a head driver for moving the magnetic head to a predetermined position on the disk.

According to the motor base assembly and the hard disk drive including the same according to the present invention, it is possible to improve the parallelism of the lamp by maximizing the fixing force of the lamp while enabling accurate positioning of the lamp base.

In addition, by minimizing the fastening means of the lamp and the base to reduce the process and parts can be maximized the productivity.

1 is a schematic exploded perspective view showing a hard disk drive including a base assembly for a motor according to an embodiment of the present invention.
Figure 2 is a schematic perspective view showing a base assembly for a motor according to an embodiment of the present invention.
Figure 3 is a schematic exploded perspective view showing a base assembly for a motor according to an embodiment of the present invention.
Figure 4 is a schematic enlarged cross-sectional view showing a coupling relationship between the base and the lamp for the motor according to the line AA of Figure 2;
5 and 6 are schematic enlarged cross-sectional views showing another coupling relationship between the base and the lamp for the motor according to the line AA of FIG.
7 and 8 are schematic enlarged cross-sectional views showing another coupling relationship between the base and the lamp for the motor according to the line AA of FIG.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

1 is a schematic exploded perspective view showing a hard disk drive including a base assembly for a motor according to an embodiment of the present invention, Figure 2 is a schematic perspective view showing a base assembly for a motor according to an embodiment of the present invention; 3 is a schematic exploded perspective view illustrating a base assembly for a motor according to an embodiment of the present invention, and FIG. 4 is a schematic enlarged cross-sectional view illustrating a coupling relationship between a motor base and a lamp according to line AA of FIG. 2. .

1 to 4, the hard disk drive 500 according to the present invention includes a motor base assembly 100 (hereinafter referred to as a base assembly), a spindle motor 200, and a head driving unit 300 for moving a magnetic head. It may include.

The base assembly 100 may include a motor base 110 (hereinafter referred to as a base) and a lamp 120.

First, the term for the direction is defined, the upper or lower direction in the axial direction may mean a direction from the upper surface of the base 110 toward the cover 400 or the opposite direction.

In the hard disk drive 500 according to the present invention, the base 110 may refer to a housing that forms an appearance together with the cover 400, and includes a disk arranging unit 112 and a lamp arranging unit 114. can do.

The disk placement unit 112 may include a portion where the disk D coupled to the spindle motor 200 to be described later is disposed, and may be formed in a circular shape as a whole so as to correspond to the shape of the disk D.

In detail, the disc placement unit 112 may refer to an area in which a portion of the base 110 protrudes downward in the axial direction to accommodate the disc D.

The lamp disposition unit 114 may be an area in which the lamp 120 for parking the magnetic head is disposed when the rotation of the disc D is stopped, and an area of the base 110 corresponding to the outer side of the disc D. It may mean.

Here, the base 110 including the disk mounting portion 112 and the lamp mounting portion 114 may be formed by a forging or pressing process, the plate-like steel, that is, the cold rolled steel sheet (SPCC, SPCE) Etc.), hot rolled steel sheet, stainless steel, lightweight alloy steel sheet such as boron or magnesium alloy or nonferrous metal sheet may be placed in a press mold and manufactured by a predetermined press pressure.

That is, the shape of the internal space formed by the combination of the upper mold and the lower mold for press or forging is implemented in a shape corresponding to the base 110 according to the present invention to form the base 110 according to the present invention in one step. It can manufacture.

However, after the basic base shape is manufactured in one pressing process, the base 110 of the final book may be formed by bending and additional pressing processes.

Therefore, the above-described disk arrangement portion 112 and the lamp arrangement portion 114 may be formed by the press pressure by the pressing process.

In addition, the lamp arranging unit 114 may be provided with a fastening accommodating part 114 for fastening with the lamp 120, which will be described at the same time as the lamp 120.

When the rotation of the disk D is stopped because the rotation of the spindle motor 200 is stopped, the lamp 120 records data on the disk D or reads the recorded data at a predetermined position of the disk D. It may be a component for parking the magnetic head.

In addition, the lamp 120 may park the magnetic head and stably read the data of the disk D by allowing the magnetic head to be spaced apart by a predetermined interval when the magnetic head moves to the disk D. FIG.

Here, the lamp 120 should be firmly fixed to the lamp mounting section 114 of the base 110, and in the process of being fixed to accurately position the initial position of the lamp 120 relative to the lamp mounting section 114. There is a need.

In addition, at the same time as the accuracy of the initial position of the lamp 120, a firm fixing force with the base 110 is required, and parallelism must also be maintained.

Accordingly, the lamp 120 may include at least one fastening part 125 for fastening with the lamp disposing part 114 of the base 110, and the lamp disposition corresponding to the fastening part 125. The fastening accommodating part 116 may be formed in the part 114.

That is, the fastening part 125 protruding from the lamp 120 is inserted into the fastening accommodating part 116 formed to penetrate the upper and lower surfaces of the lamp arranging part 114 to control the movement of the lamp 120. You can restrain.

At this time, the coupling method of the fastening part 125 and the fastening receiving part 116 may be press-fitting, and the diameter of the fastening part 125 may be adjusted to maximize the coupling force by the press-fitting part of the fastening receiving part 116. It may be formed somewhat larger than the diameter.

That is, the fastening part 125 may be more firmly coupled to the fastening accommodation part 116 by an interference fit method.

Accordingly, the parallelism of the lamp 120 may be improved by maximizing the fixing force of the lamp 120 with respect to the base 110.

In addition, the fastening part 125 may be fastened to the fastening accommodating part 116 after being inserted into the fastening accommodating part 116 through an adhesive.

In addition, the number of the fastening portion 125 and the fastening accommodation portion 116 is not limited, it is noted that it can be variously changed as the intention of those skilled in the art.

The spindle motor 200 is for rotating the disk D, and is fixedly installed at the center portion of the disk arranging unit 112. The disk D may be coupled to the spindle motor 200 and may have a recording surface on which data is recorded by rotating with the rotation of the spindle motor 200.

Here, a clamp 210 for fastening the disk D to the spindle motor 200 may be fastened to the upper end of the spindle motor 200 by a screw 220.

In addition, although FIG. 1 illustrates a configuration in which one disk D is mounted on the spindle motor 200, this is merely an example, and one or more disks D may be mounted on the spindle motor 200. Can be.

When a plurality of disks (D) is mounted in this way, a ring-shaped spacer for maintaining the distance between the disks (D) may be disposed between the disks (D).

The head driving unit 300 is called a head stack assembly (HSA), and mounts a magnetic head and moves the magnetic head to a predetermined position to record data on the disk D or to record data on the disk D. It may be configured to read.

In addition, the head driver 300 may move the magnetic head to a predetermined position of the disk D by a voice coil motor VCM including a coil 310 and upper and lower magnets 320.

Here, the upper and lower magnets 320 and 330 disposed above and below the coil 310 provided to the voice coil motor VCM are respectively upper and lower for increasing magnetic flux density and fixing with the base 110. May be combined with the yoke (340, 350).

The voice coil motor VCM is controlled by a servo control system, and the current input by the coil 310 provided to the voice coil motor VCM and the magnetic fields formed by the upper and lower magnets 320 and 330. The head drive unit 300 is rotated about the pivot axis in the direction according to the Fleming's left hand law by the interaction of.

Here, in the hard disk drive 500 according to the present invention, an operation start command is input and the disk D starts to rotate, and the voice coil motor VCM rotates the swing arm in a counterclockwise direction, and the magnetic head is rotated. Move on the recording surface of D).

On the contrary, when an operation stop command of the hard disk drive 500 according to an embodiment of the present invention is input, the voice coil motor VCM rotates the swing arm clockwise so that the magnetic head leaves the disk D. .

The magnetic head off the recording surface of the disk D is parked by a lamp 120 provided outside the disk D.

5 and 6 are schematic enlarged cross-sectional views illustrating another coupling relationship between a base for a motor and a lamp according to line AA of FIG. 2.

5 and 6, the base 110 including the disc placement unit 112 and the lamp placement unit 114 is formed by a pressing or forging process and an additional machining process (bending or pressing process).

Thereafter, the fastening accommodation portion 116, which is a hole penetrating the upper and lower surfaces of the lamp arranging portion 114, may be formed by a burring process or the like.

Here, the fastening accommodating part 116 may be formed in plural to fix the lamp 120 to the base 110 due to the fastening with the fastening part 125a formed in the lamp 120.

Specifically, in order to fix the lamp 120 to the lamp arranging portion 114 of the base 110, the fastening part 125a is inserted into the fastening accommodation part 116 from the upper side in the axial direction to the lower side (pressing, etc.). The axial length of the fastening part 125a may be longer than the axial length of the fastening accommodation part 116.

Therefore, after inserting (pressing, etc.) the fastening part 125a into the fastening receiving part 116, an end portion of the fastening part 125a may protrude from the bottom surface of the lamp arranging part 114.

Here, the protruding end may crush the protruding end by riveting toward the upper side in the axial direction as shown in FIG. 5, whereby the end of the fastening part 125a is formed in the base 110. It may be coupled to the bottom of the lamp arrangement 114.

In addition, as shown in FIG. 6, an end portion of the fastening part 125b protruding from the lower surface of the lamp arranging part 114 may be formed by the fusion process such as thermal fusion or ultrasonic fusion by the fusion machine X. It may be coupled to the bottom of the lamp arrangement 114 of the

7 and 8 are schematic enlarged cross-sectional views showing another coupling relationship between the base and the lamp for the motor according to the line AA of FIG.

Referring to FIG. 7, the fastening accommodation portion 116a formed in the lamp placement portion 114 of the base 110 includes the disc placement portion 112 and the like by a press or forging process and an additional machining process (bending or pressing process). After the base 110 including the lamp mounting unit 114 is formed, the upper surface of the lamp mounting unit 114 may be pressed to recess the top surface of the lamp mounting unit 114.

Accordingly, the lower surface of the lamp arrangement 114 may protrude downward in the axial direction, and thus the fastening accommodation portion 116a may be a groove in which the lower side in the axial direction is sealed.

Here, the fastening portion 125c is press-fitted from the upper side to the lower side in the axial direction, or inserted into and coupled with an adhesive, and the lamp 120 is connected to the fastening accommodating portion 116a by the lamp arrangement portion of the base 110 ( 114).

Referring to FIG. 8, the lamp arrangement unit 114 and the lamp 120 of the base 110 may include a coupling hole 130 formed in communication with each other, and may be a separate member in the coupling hole 130. Coupling portion N may be fastened.

Here, the coupling portion (N) may be a male screw that is formed with a screw groove on the outer circumferential surface, the coupling hole 130 may be a female screw corresponding to the male screw is formed on the wall surface.

Accordingly, the coupling portion N and the coupling hole 130 may be coupled to each other by screwing, and thus, the lamp 120 may be more stably fixed to the lamp arrangement 114 of the base 110. Can be.

However, an essential means for fixing the lamp 120 to the lamp arrangement 114 of the base 110 may be a combination of the fastening portion 125 and the fastening accommodation portion 116, and the coupling portion (N) and Note that the coupling of the coupling hole 130 is an auxiliary means.

In addition, the coupling method of the coupling portion N and the coupling hole 130 may be applicable to all the embodiments described with reference to FIGS. 1 to 7.

Through the above embodiments, the fastening parts 125, 125a, 125b, and 125c and the fastening accommodation parts 116 and 116a may allow the lamp 120 to be simply and firmly coupled to the base 110 and the lamp 120. It is possible to enable accurate positioning with respect to the base (110) of.

In addition, the parallelism of the lamp 120 may be improved by maximizing the fixing force of the lamp 120.

In addition, by minimizing the fastening means of the lamp 120 and the base 110 to reduce the process and parts it can maximize the productivity.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that such modifications or variations are within the scope of the appended claims.

100: base assembly for the motor 110: base base for the motor
112: disk arrangement portion 114: lamp arrangement portion
116, 116a: fastening receiving portion 120: lamp
125, 125a, 125b, 125c: fastening portion 130: coupling hole
200: spindle motor 300: head driving part
400: cover 500: hard disk drive

Claims (10)

A motor base;
A lamp disposed on the motor base to park the magnetic head when the disk stops rotating; And
And at least one fastening part protruding from the lamp to be fastened to the base to restrain the movement of the lamp.
The method of claim 1,
The base for the motor is a base assembly for the motor is formed with a fastening receiving portion for fastening the fastening portion.
The method of claim 2,
The fastening part is a base assembly for a motor passing through the fastening accommodating part.
The method of claim 3,
An end portion of the fastening portion passing through the fastening accommodation portion is coupled to the bottom surface of the motor base by fusion or riveting.
The method of claim 2,
The fastening part is a base assembly for the motor is fixed to the fastening receiving portion.
The method of claim 2,
The fastening accommodating part is a base assembly for a motor formed by protruding the upper surface of the base is recessed and the lower surface is sealed.
The method of claim 1,
The base for the motor is formed by the press working base assembly for the motor.
8. The method according to any one of claims 1 to 7,
The lamp and the base for the motor is formed in communication with the coupling hole is formed,
The base assembly for the motor to fasten the coupling portion to the coupling hole so that the lamp is fixed to the base for the motor.
9. The method of claim 8,
The base assembly for the motor is coupled to the coupling portion and the coupling hole by screwing.
A base assembly for a motor disposed in the base for the motor and including a lamp for parking the magnetic head when the disk stops rotating and at least one fastening portion protruding from the lamp and fastening to the base to restrain the movement of the lamp;
A spindle motor coupled to the motor base to rotate the disk;
A magnetic head for recording and reproducing data of the disk; And
And a head driver for moving the magnetic head to a predetermined position on the disk.
KR1020110078574A 2011-08-08 2011-08-08 Base assembly for motor and hard disk drive including the same KR20130016559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110078574A KR20130016559A (en) 2011-08-08 2011-08-08 Base assembly for motor and hard disk drive including the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110078574A KR20130016559A (en) 2011-08-08 2011-08-08 Base assembly for motor and hard disk drive including the same

Publications (1)

Publication Number Publication Date
KR20130016559A true KR20130016559A (en) 2013-02-18

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KR1020110078574A KR20130016559A (en) 2011-08-08 2011-08-08 Base assembly for motor and hard disk drive including the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200025666A (en) 2018-08-31 2020-03-10 주식회사 커니스 Lora network multi-channel implementation method
KR20200025667A (en) 2018-08-31 2020-03-10 주식회사 커니스 MESH ALGORITHM IMPLEMENTATION METHOD USING LoRa NETWORK STAR TOPOLOGY

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200025666A (en) 2018-08-31 2020-03-10 주식회사 커니스 Lora network multi-channel implementation method
KR20200025667A (en) 2018-08-31 2020-03-10 주식회사 커니스 MESH ALGORITHM IMPLEMENTATION METHOD USING LoRa NETWORK STAR TOPOLOGY

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