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Antielectromagnetic interference method of mobile hard disk and the mobile hard disk

A technology of anti-electromagnetic interference and mobile hard disk, applied in electromagnetic interference or radio frequency interference shielding, electrical components, magnetic field/electric field shielding, etc., can solve the problem of poor anti-electromagnetic interference effect of mobile hard disk, achieve simple and practical technology, improve Effectiveness of utilization rate and cost reduction

Inactive Publication Date: 2009-06-10
YITUO SCI & TECH CO LTD SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] One of the technical problems to be solved by the present invention is to provide a mobile hard disk anti-electromagnetic interference method to solve the problem of poor anti-electromagnetic interference effect of the existing mobile hard disk

Method used

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  • Antielectromagnetic interference method of mobile hard disk and the mobile hard disk
  • Antielectromagnetic interference method of mobile hard disk and the mobile hard disk
  • Antielectromagnetic interference method of mobile hard disk and the mobile hard disk

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specific Embodiment approach 1

[0028] After a lot of research, the applicant found that an important reason for the poor anti-electromagnetic interference effect of the existing mobile hard disk is that the circuit board 2 used to switch the interface type is not well grounded. The circuit board 2 of the existing mobile hard disk is generally connected to the ground of an external circuit through a ground wire, and the grounding effect is very general. After a lot of research, the applicant believes that the housing of the hard disk 1 is a large metal body relative to the circuit board 2. Therefore, the ground terminal of the circuit board 2 is electrically connected to the housing of the hard disk 1 to achieve good resistance. The effect of electromagnetic interference. It should be noted that, theoretically, the ground terminal of the circuit board 2 can be reliably electrically connected to a metal hard disk box, which can also achieve a good anti-electromagnetic interference effect, but it is inconvenient d...

specific Embodiment approach 2

[0031] Such as Figure 4 As shown, this embodiment is improved on the basis of the first embodiment for a more reliable electrical connection between the ground terminal of the circuit board 2 and the housing of the hard disk 1, specifically, the ground plate 21 and the mounting seat A flexible conductive sheet 3 is set between 11. More specifically, the flexible conductive sheet 3 is a piece of conductive cotton. Of course, other soft conductive materials can also be used to make the soft conductive sheet 3, for example, conductive rubber can be used. Due to the existence of the flexible conductive sheet 3, the electrical connection between the ground plate 21 and the mounting base 11 is more reliable.

specific Embodiment approach 3

[0032] Such as Figure 5 As shown, in this specific embodiment, a conductor 4 is welded on one side of the circuit board 2 corresponding to the position of the mounting seat 11. The conductor 4 may be a copper sheet or other metal sheets with good conductivity, such as aluminum. Sheets and even galvanized iron sheets. The conductor 4 is reliably electrically connected to the ground terminal of the circuit board 2, and the conductor 4 is provided with a hole 41. The position of the hole 41 corresponds to the screw hole on the mounting base 11. The conductor 4 can be fixed on the mounting base 11 by screws , It can also achieve the effect of reliable electrical connection between the ground terminal of the circuit board 2 and the mounting base 11, and thus the reliable electrical connection with the housing of the hard disk 1. Of course, the conductor 4 can also be as Figure 6 Shown is a bent copper sheet. After the conductor 4 is bent, the hole 41 on it corresponds to the screw hol...

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Abstract

The invention discloses an anti-electromagnetic interference method for a mobile hard disc, which allows one end of a connector having two conducted ends to be connected with a grounding end of a circuit board and the other end of the connector to be connected with a mounting seat arranged on a case of the hard disc to realize reliable electric connection between the grounding end of the circuit board and the case of the hard disc and consequently improve the anti-electromagnetic interference of the mobile hard disc. The invention also discloses a mobile hard disc, which comprises a hard disc, a circuit board for switching the interfaces of the hard disc and a mobile hard disc box. The hard disc is provided with the mounting seat. The circuit board is provided with the grounding end. The circuit board and the hard disc are fixedly arranged in the mobile hard disc box. The mobile hard disc also comprises the connector with two conducted ends. One end of connector is connected with the grounding end electrically and the other end of the connector is connected with the mounting seat of the hard disc electrically. The mobile hard disc adopting the technical proposal of the invention has improved anti-electromagnetic interference performance due to the adopted connector which reliably and electrically connects the grounding end of the circuit board and the case of the hard disc.

Description

Technical field [0001] The invention relates to the technical field of hard disk production, in particular to a method for anti-electromagnetic interference of a mobile hard disk and a mobile hard disk adopting the method. Background technique [0002] For mobile hard drives, electromagnetic interference (EMI, Electro magnetic interference) may cause failures such as information transmission errors, operation errors, and abnormal operations. In addition, the mobile hard disk itself may become a source of interference, bringing certain harm to other electronic devices and even the human body. Therefore, the electromagnetic interference problem of mobile hard disks has always been an important research topic for researchers. Generally, shielding and grounding are used to eliminate electromagnetic interference. Now general mobile hard drives such as figure 1 with figure 2 As shown, they all include: a hard disk 1, a mobile hard disk box for accommodating the hard disk 1 and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B33/14H05K9/00
CPCG11B33/1493G11B33/121
Inventor 黄春生欧阳练兵
Owner YITUO SCI & TECH CO LTD SHENZHEN
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