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Motor unit and disk drive apparatus

A technology of disk drive device and motor, applied in electromechanical device, connection with control/drive circuit, electrical components, etc., can solve problems such as thinning of shell wall thickness

Inactive Publication Date: 2012-07-04
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when it is desired to place the solder connection between the FPC and the lead wires directly under the stator, it is necessary to keep the connection point away from the stator at the bottom, resulting in a thinner case.

Method used

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  • Motor unit and disk drive apparatus
  • Motor unit and disk drive apparatus
  • Motor unit and disk drive apparatus

Examples

Experimental program
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Embodiment Construction

[0025] In this specification, the direction of the central axis of the motor section figure 1 The upper side is referred to as "upper side" for short, and the direction of the central axis of the motor figure 1 The lower side in is referred to as "lower side" for short. In addition, the vertical direction does not refer to the positional relationship and direction when actually assembled in the device. In addition, the direction parallel or substantially parallel to the central axis is referred to as "axial direction", the radial direction centered on the central axis is simply referred to as "radial direction", and the circumferential direction centered on the central axis is simply referred to as "circumferential direction". Towards".

[0026] figure 1 It is a cross-sectional view of a disk drive device 1 including a spindle motor (hereinafter simply referred to as a "motor") according to an exemplary first embodiment of the present invention. The disk drive device 1 is ...

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Abstract

A motor unit for use in a disk drive apparatus includes a motor portion, a housing member including a through hole defined therein, and a circuit board. The motor portion includes a rotating portion, a base portion, and a stator fixed to the base portion. The circuit board is arranged to extend from an outside of the motor portion to an inside of the stator through a gap defined between the stator and the base portion. The circuit board includes a connection portion arranged radially inward of the stator. A plurality of lead wires of the stator is connected to the connection portion.

Description

technical field [0001] The present invention relates to a motor unit for a disk drive. Background technique [0002] Conventionally, a spindle motor (hereinafter, simply referred to as a "motor") for rotating a disk is mounted on a disk drive device such as a hard disk drive device. In the disk drive device disclosed in Japanese Patent Application Laid-Open No. 7-334967, the bracket of the motor is fixed to the base of the disk drive device by screw clamps or the like. A guide groove is formed on the inner bottom surface of the base, and the guide groove extends from the flange portion of the bracket to the connector provided on the side portion of the disk drive unit. Paste the FPC (flexible printed circuit board) that connects the coil wire of the stator of the motor and the connector to the guide groove. [0003] Japanese Patent Application Laid-Open No. 2006-40423 discloses a structure in which a low-density gas such as helium or hydrogen is filled inside a disk device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/50H02K1/18G11B17/022
CPCG11B19/2009G11B25/043G11B33/122H02K11/0073H02K3/522H02K11/33
Inventor 杉孝时米田朋广小林裕
Owner NIDEC CORP