KR20100088344A - Spindle motor - Google Patents

Spindle motor Download PDF

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Publication number
KR20100088344A
KR20100088344A KR1020090007503A KR20090007503A KR20100088344A KR 20100088344 A KR20100088344 A KR 20100088344A KR 1020090007503 A KR1020090007503 A KR 1020090007503A KR 20090007503 A KR20090007503 A KR 20090007503A KR 20100088344 A KR20100088344 A KR 20100088344A
Authority
KR
South Korea
Prior art keywords
substrate
ffc
spindle motor
base
folded
Prior art date
Application number
KR1020090007503A
Other languages
Korean (ko)
Inventor
유진승
이명석
Original Assignee
엘지이노텍 주식회사
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 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to KR1020090007503A priority Critical patent/KR20100088344A/en
Priority to PCT/KR2010/000537 priority patent/WO2010087637A2/en
Publication of KR20100088344A publication Critical patent/KR20100088344A/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

Spindle motor is disclosed. The spindle motor is provided with only a substrate for driving the motor portion, and a base is formed to a size substantially similar to that of the substrate. Therefore, the size of the substrate and the base is reduced, thereby reducing the cost. In addition, since the substrate and the outer side are connected by using a flexible flat cable (FFC), the cost is further reduced.

Description

Spindle Motors {SPINDLE MOTOR}

The present invention relates to a spindle motor.

The spindle motor is installed inside the optical disk drive (ODD), and rotates the disk so that the linear pickup can read the data recorded on the disk.

1 is a perspective view of a conventional spindle motor, which will be described.

As shown, the substrate 21 and the motor unit 31 are installed on the base 11. An auxiliary substrate 25 is integrally formed on the substrate 21, and the auxiliary substrate 25 is connected to the substrate 21 and a main board of the product or a stepping motor for optical pickup transfer.

The motor part 31 is supported by the site | part of the base 11 in which the board | substrate 21 was installed, and is connected with the board | substrate 21. FIG. Thus, when external power is supplied to the motor unit 31 through the substrate 21, the disk is rotated while rotating.

In the conventional spindle motor as described above, since the auxiliary substrate 25 is integrally formed on the substrate 21, the cost increases.

In addition, since the substrate 21 and the auxiliary substrate 25 formed integrally, the size of the base 11 also increases, there is a disadvantage that the cost is further increased.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention to provide a spindle motor that can reduce the cost.

Spindle motor according to the present invention for achieving the above object, the base; A substrate coupled to the base; A motor unit supported on the base and connected to the substrate,

The substrate is composed of a circuit for driving the motor unit, a flexible flat cable (FFC) is connected to the substrate, the substrate is connected to the outside through the FFC.

In the spindle motor according to the present invention, only a substrate for driving the motor unit is provided, and a base is formed to a size substantially similar to that of the substrate. Therefore, the size of the substrate and the base is reduced, thereby reducing the cost.

In addition, since the substrate and the outer side are connected by using a flexible flat cable (FFC), the cost is further reduced.

Hereinafter, a spindle motor according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First embodiment

2 is a perspective view of the spindle motor according to the first embodiment of the present invention, Figure 3 is a bottom perspective view of the base and the substrate shown in FIG.

As shown, the spindle motor according to the present embodiment has a base 110, a substrate 120 and the motor unit 130.

Hereinafter, in referring to the plane and the direction of the components, the plane and the direction facing upward in the vertical direction of the base 110 is referred to as "upper and upper side", the plane and the direction facing downward is referred to as "lower and lower side".

Base 110 is formed of a metal, the lower surface is bonded to the product. The lower surface of the substrate 120 is coupled to the upper surface of the base 110, and the motor unit 130 is supported by the base 110 to stand up.

The coil 131a of the stator 131 of the motor unit 130 is connected to the substrate 120 to receive external power. When power is supplied to the coil 131a, the rotor 133 rotates due to the action of the stator 131 and the rotor 133, which causes the disk mounted on the rotor yoke 133a of the rotor 133. Rotates.

Since only a circuit necessary for driving the motor unit 130 is formed on the substrate 120 of the spindle motor according to the present embodiment, a medium for connecting the substrate 120 to the outside is required. At this time, the outside is at least two counterparts such as a power source or a product or a stepping motor.

To this end, one side of the flexible flat cable (FFC) 140 is connected to the substrate 120 by soldering or the like. The other side of the FFC 140 is connected to the power supply side and the counterpart.

One side of the substrate 120 protrudes 122 to the outside of the base 110, and a connection terminal 122a is formed on an upper or lower surface of the protrusion 122 of the substrate 120. The connecting terminal 122a is provided in excess and connected with necessary parts.

Since the spindle motor according to the present exemplary embodiment is provided with only the substrate 120 required for driving the motor unit 130, the size of the base 110 is also formed to be approximately the size of the substrate 120. Therefore, since the size of the substrate 120 and the size of the base 110 are reduced, cost is reduced.

Second embodiment

4 is a perspective view illustrating main parts of the spindle motor according to the second embodiment of the present invention.

As shown, the FFC 240 is difficult to manufacture a length of 30mm or less due to the characteristics of the manufacturing apparatus. When one side of the FFC 240 is connected to the substrate 220, if the length of the FFC 240 exposed to the outside of the substrate 220 is longer than necessary, the FFC 240 may not contact other components or use space.

To this end, the central portion of the FFC 240 is folded several times in the longitudinal direction, laminated and then compressed. This shortens the length of the FFC 240, which is convenient.

Third Embodiment

5 is a perspective view illustrating main parts of the spindle motor according to the third embodiment of the present invention.

As shown, the direction of the external power source and the counterpart may be different depending on the space in which the spindle motor is installed.

For this purpose, the boundary portion 340a of the portion 341 of the FFC 340 connected to the external power source and the portion 343 of the FFC 340 connected to the counterpart is cut out of the portion of the FFC 340. . At this time, the portion of the FFC 340 located at the boundary portion 340a is formed as an unused dummy portion, and the dummy portion is cut out.

The center portion 341 of the FFC 340 connected to the external power supply side is folded in the longitudinal direction, and the portion 343 of the FFC 340 connected to the counterpart is folded in the width direction. On the contrary, the portion 341 of the FFC 340 connected to the external power supply side may be folded in the width direction, and the central portion side of the portion 343 of the FFC 340 connected to the counterpart may be folded in the longitudinal direction and stacked. have.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Of course.

1 is a perspective view of a conventional spindle motor.

2 is a perspective view of a spindle motor according to the first embodiment of the present invention.

3 is a bottom perspective view of the base and the substrate shown in FIG.

4 is a perspective view of main parts of the spindle motor according to the second embodiment of the present invention;

5 is a perspective view of main parts of a spindle motor according to a third embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

110: base 120: substrate

130: motor unit

Claims (8)

Base; A substrate coupled to the base; A motor unit supported on the base and connected to the substrate, The substrate is composed of a circuit for driving the motor unit, A flexible flat cable (FFC) is connected to the substrate, and the spindle motor is connected to the outside through the FFC. The method of claim 1, The central portion of the FFC is a spindle motor folded in the longitudinal direction. The method of claim 1, The part of the FFC connected to the outside is a spindle motor cut in the longitudinal direction. The method of claim 3, wherein The FFC has a dummy part formed in a longitudinal direction, and the dummy part is incised. The method of claim 3, wherein The outer connecting with the FFC is at least two different sites, According to the external portion, one side of the FFC is folded in the longitudinal direction and stacked, the other side is folded in the width direction spindle motor. The method of claim 5, The outside of the spindle motor is connected to the power supply side or the counterpart. The method according to claim 2 or 5, The folded portion of the FFC is a compressed spindle motor. The method of claim 1, One side of the substrate protrudes to the outside of the base, the projection of the substrate is a spindle motor formed with a connection terminal.
KR1020090007503A 2009-01-30 2009-01-30 Spindle motor KR20100088344A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020090007503A KR20100088344A (en) 2009-01-30 2009-01-30 Spindle motor
PCT/KR2010/000537 WO2010087637A2 (en) 2009-01-30 2010-01-29 Spindle motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090007503A KR20100088344A (en) 2009-01-30 2009-01-30 Spindle motor

Publications (1)

Publication Number Publication Date
KR20100088344A true KR20100088344A (en) 2010-08-09

Family

ID=42396194

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090007503A KR20100088344A (en) 2009-01-30 2009-01-30 Spindle motor

Country Status (2)

Country Link
KR (1) KR20100088344A (en)
WO (1) WO2010087637A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6227381B2 (en) * 2013-11-12 2017-11-08 東京パーツ工業株式会社 Brushless motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3719379B2 (en) * 2000-10-12 2005-11-24 日本ビクター株式会社 motor
JP2007095215A (en) * 2005-09-29 2007-04-12 Toshiba Corp Disk drive
KR101198613B1 (en) * 2006-06-07 2012-11-07 엘지이노텍 주식회사 Spindle motor

Also Published As

Publication number Publication date
WO2010087637A2 (en) 2010-08-05
WO2010087637A3 (en) 2010-10-21

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E601 Decision to refuse application
N231 Notification of change of applicant