Unlock instant, AI-driven research and patent intelligence for your innovation.

Spindle motor and disc drive unit

A technology of spindle motors and discs, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of reduced impact resistance and noise of the base

Inactive Publication Date: 2014-07-02
NIDEC CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the impact resistance of the base portion is reduced, and noise is generated when the motor is driven

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spindle motor and disc drive unit
  • Spindle motor and disc drive unit
  • Spindle motor and disc drive unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In this specification, the direction of the central axis of the motor figure 1 The upper side is simply referred to as "upper side", and the lower side is simply referred to as "lower side". In addition, the up-down direction does not indicate the positional relationship and direction when assembled into an actual device. In addition, the direction 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".

[0025] figure 1 It is a vertical cross-sectional view of a disk drive device 1 including a spindle motor (hereinafter simply referred to as "motor") according to an exemplary embodiment of the present invention. The disk drive device 1 is a hard disk drive device of a 2.5 type and 7 mm thick type. The disk drive device 1 includes, for example, a di...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a spindle motor and a disc drive unit. The spindle motor comprises a rotating portion that rotates around the central shaft, a static portion, and a bearing mechanism, wherein the static portion comprises a base portion, a stator, and a resin sleeve; the base portion comprises multiple base portion through holes and an arc-shape recess with the central shaft as the center; the sleeve comprises a connecting portion and multiple barrel portions; the multiple barrels are embedded into the inner side surface of the base portion through holes; the upper surface of the inner side base upon the upper surface of base portion is at a height same as the upper surface of the sleeve, or above the upper surface of the sleeve; and the boundary between the upper surface of the inner side base of the base portion and the arc-shaped recess is closer to the radial interior than the rim of the radial interior of the upper surface of the sleeve.

Description

technical field [0001] The present invention relates to a spindle motor for a disk drive. Background technique [0002] Conventionally, a spindle motor for rotating a disk is mounted on a disk drive device such as a hard disk drive device. A disk drive device disclosed in Japanese Patent Application Laid-Open No. 2006-185553 includes a motor and a case that accommodates the motor in an internal space. Inside the housing, a motor is attached to a plate-shaped housing member made of aluminum. A flexible circuit board is bonded to the main surface of the housing member on the side opposite to the internal space. The housing part includes a through hole. A substantially cylindrical resin bush is inserted into the through hole. In the disk drive device, wires connected to the armature of the motor are drawn out of the casing through the inside of the bushing. The ends of the wires are bonded to the electrodes of the flexible circuit board. By providing the bushing, the cond...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/50G11B33/12
Inventor 玉冈健人
Owner NIDEC CORP