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Circuit board, motor, disk drive apparatus and circuit board manufacturing method

A technology for circuit substrates and mounting boards, which is applied to electromechanical devices, circuit layouts on support structures, printed circuits, etc., and can solve problems such as poor workability and adhesion of solder to electronic components.

Inactive Publication Date: 2012-03-28
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, when the operator solders the wires to the circuit board, depending on the position of the electronic components and soldering, the solder may adhere to the electronic components.
Furthermore, when the soldered part is located near the electronic component in a straight line, the operator has to use a jig or the like in order to avoid the electronic component, so the workability is poor.

Method used

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  • Circuit board, motor, disk drive apparatus and circuit board manufacturing method
  • Circuit board, motor, disk drive apparatus and circuit board manufacturing method
  • Circuit board, motor, disk drive apparatus and circuit board manufacturing method

Examples

Experimental program
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Embodiment Construction

[0014] In this specification, the upper side in the central axis direction of the motor is simply referred to as "upper side", and the lower side is simply referred to as "lower side". The up-down direction in this manual does not mean the up-down direction when assembled into the actual device. In addition, the circumferential direction around the central axis is simply referred to as "circumferential direction", and the radial direction around the central axis is simply referred to as "radial direction".

[0015] refer to figure 1 The disk drive device 10 includes a motor 1 , an access unit 11 , and a box-shaped casing 12 that accommodates them therein. The motor 1 is a thin motor with a height of several millimeters to tens of millimeters. In the motor 1 , the central hole 91 of the recording disc 9 is fitted into the chuck 5 described later. Thus, the recording disk 9 is fixed to the motor 1 .

[0016] The access unit 11 includes a head 111 and a head moving mechanism ...

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PUM

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Abstract

A circuit board for supplying therethrough an electric current to a stator including windings arranged to generate magnetic fields includes a body portion having a rectangular shape when seen in a plan view and mounted with electronic parts, and an extension portion protruding from the body portion substantially along a circumferential direction around a rotation axis of the motor when seen in a plan view. The extension portion includes a distal end extension opposed to the body portion through a gap when seen in a plan view. The transverse width of the extension portion is smaller than the gap. The body portion includes an outward connector portion connected to an external power source or an external circuit board. The extension portion includes a winding connection portion connected to the outward connector portion through a wiring portion. The windings are soldered to the winding connection portion.

Description

technical field [0001] The present invention mainly relates to a circuit board used for a motor of an optical disk drive device such as a CD or a DVD, a motor mounted with the circuit board, and a disk drive device mounted with the motor. Background technique [0002] A removable disk (Removable Disc) that is rotated by a motor is mounted on the disk drive device. As a removable disk, CD, DVD, a Blu-ray Disc, etc. are mentioned, for example. [0003] In addition, the motor is connected to the circuit board. Various electronic components such as driver ICs and connectors are mounted on the circuit board. The connectors make electrical connections to the actual equipment and motors of the disk drive. In addition, in the case of a three-phase motor, three types of conducting wires, U-phase, V-phase, and W-phase, are wound around the stator core. The three kinds of wires are respectively connected to the circuit board by soldering. [0004] In recent years, there has been a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/18H02K11/00G11B17/022
CPCH05K2201/09027H02K3/522H05K3/3405H05K2201/10287H02K2203/03H02K2203/09H05K2201/09227G11B17/0282Y10T29/49144H05K7/02H05K1/02G11B19/20G11B33/12
Inventor 山田真弘小松聪
Owner NIDEC CORP