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Flexible printed circuit assembly and disk drive including same

A technology of flexible printed circuits and components, applied in the direction of printed circuits, printed circuits, electrical components, etc., can solve problems affecting the precise movement of HSA

Inactive Publication Date: 2016-06-15
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the relay FPC is connected with the HSA, when the bending state of the relay FPC is unstable, the relay FPC may affect the precise movement of the HSA

Method used

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  • Flexible printed circuit assembly and disk drive including same
  • Flexible printed circuit assembly and disk drive including same
  • Flexible printed circuit assembly and disk drive including same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0027] figure 1 The internal structure of the HDD with the top cover removed is shown. as in figure 1 As shown in , the HDD includes a housing 10. The housing 10 includes a base 12 having a rectangular box shape whose top side is opened, and a top cover (not shown) fixed to the base 12 by a plurality of screws and closing the upper end opening of the base 12 . The base 12 includes a rectangular bottom wall 12a and side walls 12b disposed along the periphery of the bottom wall.

[0028] In the casing 10 , two magnetic disks 16 are provided as storage media, and a spindle motor 18 is provided as a driving section that supports and rotates the magnetic disks 16 . A spindle motor 18 is provided on the bottom wall 12a. The magnetic disk 16 is concentrically fitted in a hub (not shown) of the spindle motor 18 , clamped by a clamp spring 27 , and fixed to the hub. Therefore, the magnetic disk 16 is supported parallel to the bottom wall 12 a of the base 12 . The magnetic disk 16...

no. 2 example

[0056] Figure 12 is a perspective view of the FPC assembly according to the second embodiment. Figure 13 is a perspective view of a clip used with the FPC assembly of the second embodiment. Figure 14 is a perspective view of the part of the FPC assembly to which the clip is attached. Figure 15 is a perspective view of the part of the FPC assembly to which the clip is attached, from a different orientation.

[0057] In the second embodiment, clips are used as the fixing members instead of the support posts used in the first embodiment. as in Figure 12 As shown in , the FPC assembly 21 is constructed in the same manner as the FPC assembly according to the first embodiment, and further includes a clip 72 .

[0058] as in Figure 12 and Figure 13 As shown in , the clip 72 includes a main body 74 substantially having a cuboid shape, and a clamping arm 76 extending from the main body 74 and elastically deformable. The clip 72 is integrally formed with a main body 74 and...

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PUM

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Abstract

A flexible printed circuit assembly includes a flexible printed circuit board including a base portion and a relay portion extending from a first edge of the base portion and capable of being bent relative to the base portion, a first reinforcing member disposed at the relay portion, and a second reinforcing member attached to a first region of the base portion that includes a second edge opposite to the first edge and having an engaging portion. The first region of the base portion is capable of being folded back towards a second region of the base portion that includes the first edge, and the engaging portion of the second reinforcing member is capable of being engaged with the first reinforcing member.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority to US Provisional Patent Application No. 62 / 087,030, filed December 3, 2014, the entire contents of which are hereby incorporated by reference. technical field [0003] Embodiments described herein generally relate to flexible printed circuit (FPC) assemblies and disc drives including FPC assemblies. Background technique [0004] A magnetic disk device generally includes a magnetic disk, a spindle motor supporting and rotating the magnetic disk, a head stack assembly (HSA) supporting a magnetic head, a voice coil motor moving the HSA, a flexible printed circuit board unit (hereinafter, FPC unit), etc. in a housing. [0005] The HSA includes a bearing attached to the housing, and a plurality of arms stacked within and extending from the bearing. A magnetic head is attached to each arm via a suspension. The FPC unit includes a base portion and a relay portion (hereinafte...

Claims

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Application Information

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IPC IPC(8): G11B5/48G11B5/012
CPCG11B5/012G11B5/4806G11B5/4833G11B5/486G11B2220/2508H05K1/028H05K2201/2009G11B5/4846H05K2201/056
Inventor 赤冢直人山口秀树佐藤吉典矢口友树
Owner KK TOSHIBA
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