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Spindle motor and storage disk drive having the same

A spindle motor and disc technology, applied in electromechanical devices, information recording on magnetic discs, magnetic recording, etc., can solve the problems of thinning thickness and decreasing rigidity of motor bracket, so as to improve rigidity and reduce planing area Effect

Active Publication Date: 2014-01-01
NIDEC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there may be a problem that the thickness of the planed part becomes thinner and the rigidity of the motor bracket decreases.

Method used

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  • Spindle motor and storage disk drive having the same
  • Spindle motor and storage disk drive having the same
  • Spindle motor and storage disk drive having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following embodiments are essentially preferred examples, and are not meant to limit the scope of the present invention and its applications or uses.

[0021] figure 1 It is a cross-sectional view showing the structure of a hard disk drive device having a spindle motor according to the first exemplary embodiment of the present invention. Such as figure 1 As shown, the hard disk drive device 1 includes a disk-shaped recording disk 11 for recording information, an access unit 12, a spindle motor 10 (hereinafter referred to as “motor 10”), and a housing 13. The access unit 12 reads and / or writes information on the recording disk 11. The motor 10 rotates the recording disk 11. The casing 13 houses the recording disk 11, the access unit 12 and the motor 10. The motor 10 is preferably a three-phase brushless motor.

[0022] In addition, in this specification, th...

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PUM

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Abstract

A spindle motor includes a base portion, a rotor hub, a stator, and a circuit board. The base portion preferably includes a through hole and is arranged to spread out radially around a central axis. The rotor hub is arranged above the base portion to rotate about the central axis. The stator is arranged above the base portion, and includes coils each including at least one lead wire. The circuit board is arranged radially outward of the through hole, and arranged on a lower surface of the base portion. The base portion includes a communicating groove arranged to join the through hole and the circuit board to each other. The at least one lead wire of the coils is arranged to pass inside the through hole and the communicating groove to be electrically connected to the circuit board. The through hole is sealed with a sealant.

Description

Technical field [0001] The invention relates to a spindle motor and a recording disk drive device with the spindle motor. Background technique [0002] In the disk drive motor disclosed in Japanese Patent Application Laid-Open No. 2000-209804, the lead wire of the coil passes through the lead hole of the motor bracket to be electrically connected to the flexible circuit board. The lead hole is closed by the flexible circuit board. Paste the flexible circuit board on the bottom surface of the motor bracket with adhesive. [0003] However, as in Japanese Patent Laid-Open No. 2000-209804, in the case of a structure in which soldering is performed on the bottom surface of the motor bracket, it is necessary to plan the bottom surface of the motor bracket in consideration of the bonding area of ​​the circuit board and the height of the solder. However, there may be a problem that the thickness of the shaved part becomes thinner and the rigidity of the motor bracket decreases. Summary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B19/20H02K3/50
CPCH02K5/225H02K3/521H02K2203/03G11B19/2009
Inventor 斋地正义福島和彦安藤博典三浦和司高桥胜也玉冈健人乔纳森·M·加巴里诺罗伯特·N·莱昂
Owner NIDEC CORP