CN203895119U - Anti-electromagnetic-interference structure of external hard disk - Google Patents
Anti-electromagnetic-interference structure of external hard disk Download PDFInfo
- Publication number
- CN203895119U CN203895119U CN201420284718.3U CN201420284718U CN203895119U CN 203895119 U CN203895119 U CN 203895119U CN 201420284718 U CN201420284718 U CN 201420284718U CN 203895119 U CN203895119 U CN 203895119U
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- China
- Prior art keywords
- hard disk
- circuit board
- electromagnetic interference
- external connected
- connected hand
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an anti-electromagnetic-interference structure of an external hard disk. A hard disk body is arranged in an outer cover. A housing is reverse-U-shaped and is made of metal. The hard disk body is covered from the upper surface and four peripheral side surfaces. The housing is internally provided with a hard disk controller which controls sliding of a reading head, thereby reading and writing data which are stored on a magnetic disk that is driven by a main shaft motor. A control circuit board comprises a metal foil layer which is fixed below the hard disk body through magnet-conducting screws and furthermore shields the lower surface of the hard disc controller, thereby preventing electromagnetic interference and simplifying structure.
Description
Technical field
The utility model relates to a kind of external connected hand disk, especially relates to the external connected hand disk of portable data storage, utilizes the external connected hand disk of inner control circuit board shield electromagnetic interference.
Background technology
Along with popularizing of computing information, the equipment that possesses the various storage mass data of difference in functionality constantly occurs, stores to meet user demand, the especially external connected hand disk of collecting data, high storage capacity and the characteristic that is easy to carry, become the main product of memory device.
As shown in Figure 1, be existing external connected hand disk 10.The shell 12 that the hard disk body 11 of existing external connected hand disk 10 comprises a ㄇ font (or being similar to door type), shell 12 is metal material, shell 12 is by coated above hard disk body 11 and surrounding side, the another control circuit board 13 that external connected hand disk 10 is set in a side of shell 12, formation external connected hand disk 10 is controlled the linkage interface of hard disk body 11.But hard disk body 11 belows there is no betal can and cover, when preventing that external connected hand disk 10 from operating, electromagnetic wave can be from the 11 below radiation turnover of hard disk body, and then interact and produce electromagnetic interference (EMI) (Electro-Magnetic Interference with periphery electronic product, be called for short EMI) so that cause noise.Existing external connected hand disk 10 is separately fixed on hard disk body 11 with screw 14 by metal cage 15, by the coated hard disk body 11 in below, to prevent that electromagnetic wave is from the 11 below radiation turnover of hard disk body.Finally in metal cage 15 outsides, then fasten the upper cover 16 and lower cover 17 of external form attractive in appearance, Fixed disk body 11, to complete the assembling of external connected hand disk 10.
But, the metal cage 15 that existing external connected hand disk 10 installs additional, not only on mold developing, assembling product and part, increase manufacturing cost, and more make external connected hand disk 10 must increase volume and volume weight increase for holding metal cage 15, cause external connected hand disk 10 to be difficult for carrying.Therefore, existing external connected hand disk structurally, still has problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of external connected hand disk anti electromagnetic interference structure, by the metal foil layer of external connected hand disk control circuit board, the metal shell that coordinates hard disk body, the electromagnetic interference (EMI) of covering hard disk body, to reach anti-electromagnetic interference (EMI) effect and simplified structure.
Another object of the utility model is to provide a kind of external connected hand disk anti electromagnetic interference structure, together with by magnetic conduction screw, external connected hand disk control circuit board being locked with hard disk body, to strengthen shield electromagnetic interference effect.
In order to reach the object of aforementioned utility model, the utility model external connected hand disk anti electromagnetic interference structure, hard disk body is located to enclosing cover inside, there is the metal material shell of ㄇ font, by above and the coated hard disk body in surrounding side, in shell, establish hard disk controller, control read head and slide, the data of storing on the disk dish that read-write is rotated by Spindle Motor.Control circuit board comprises a metal foil layer, utilizes magnetic conduction screw to be fixed on the below of hard disk body, and covers hard disk controller below.
This enclosing cover is plastic cement material.
This enclosing cover is metal material.
This control circuit board covers hard disk controller completely.
This control circuit board comprises configuration section and extension, and configuration section is in order to the electronic component of control circuit board to be set, and extension continues at configuration section adjacent side, extends to hard disk controller below, and area covers hard disk controller completely.
This control circuit board is the printed circuit board (PCB) of a multiple field, comprises at least one metal foil layer.
This metal foil layer can be metal graticule mesh.
The metal shell of this magnetic conduction screw locking hard disk body and the metal foil layer of control circuit board are connected to form one.
The utility model has the advantage of, the utility model external connected hand disk anti electromagnetic interference structure can add the metal shell that metal foil layer coordinates hard disk body by the control circuit board in external connected hand disk, metal foil layer and metal shell are locked formation one by recycling magnetic conduction screw, strengthens shielding hard disk body electromagnetic interference (EMI) effect.Further save the setting of existing metal cage, to reduce volume and the weight of external connected hand disk, reach the object of simplified structure.
Brief description of the drawings
Fig. 1 is the parts explosion of existing external connected hand disk;
Fig. 2 is the side diagrammatic cross-section of the utility model external connected hand disk;
Fig. 3 is the stereographic map of the utility model control circuit board;
Fig. 4 is the metal foil layer schematic diagram of the utility model control circuit board.
Symbol description:
| External connected hand disk 20 |
| Hard disk body 21 |
| Control circuit board 22 |
| Magnetic conduction screw 23 |
| Enclosing cover 24 |
| Hard disk controller 25 |
| Read head 26 |
| Spindle Motor 27 |
| Magnetic disc dish 28 |
| Shell 29 |
Embodiment
Relevant the utility model is for reaching above-mentioned purpose, and the technological means adopting and effect thereof, lift preferred embodiment, and it is as follows to coordinate accompanying drawing to be illustrated.
Please refer to Fig. 2, is the side diagrammatic cross-section of the utility model external connected hand disk 20.External connected hand disk 20 comprises hard disk body 21, control circuit board 22, magnetic conduction screw 23 and enclosing cover 24.Wherein in the hard disk body 21 of external connected hand disk 20, be provided with hard disk controller 25, in the time reading and writing data, control read head 26 by hard disk controller 25 and slide, the data of storage on the magnetic disc dish 28 that read-write is rotated by Spindle Motor 27.Hard disk body 21 is provided with the metal material shell 29 of ㄇ font, by and the coated hard disk body 21 in surrounding side, only stays hard disk body 21 belows not cover above.And the control circuit board 22 of external connected hand disk 20 utilizes magnetic conduction screw 23 to be fixed on the part below of hard disk body 21, and cover hard disk controller 25 belows, as the linkage interface of controlling hard disk body 21.The outer enclosing cover 24 that covers again plastic cement material of hard disk body 21,, volume-diminished aesthetic in appearance to be combined into and lightweight external connected hand disk 20.Wherein enclosing cover 24 is not limited with plastic cement material, also can be metal material.
Please also refer to Fig. 3 and Fig. 4, Fig. 3 is the stereographic map of the utility model control circuit board 22, and Fig. 4 is the schematic diagram of the metal foil layer in the utility model control circuit board 22.In Fig. 3, the control circuit board 22 of the utility model external connected hand disk 20 is the printed circuit board (PCB) of a multiple field, control circuit board 22 comprises configuration section 30 and extension 31, configuration section 30 is in order to arrange the electronic component of control circuit board 22, and extension 31 continues at configuration section 30 adjacent sides, extend to hard disk controller below, its area must cover hard disk controller completely.The control circuit board 22 of multiple field comprises at least one metal foil layer 32, shows that metal foil layer 32 can be the metal graticule mesh 33 of a film, the electromagnetic wave producing in order to cover hard disk controller in Fig. 4.Wherein metal foil layer is not limited in the middle of being located at control circuit board 22, also can be located at control circuit board 22 upper surfaces or lower surface.
Refer again to Fig. 2, in the time that the utility model external connected hand disk 20 reads and writes data, control after tested the hard disk controller 25 that read head 26 slides, comparatively fierce trickle because moving, and the signal that reads and writes data of transmission is relatively faint, the most easily generates electromagnetic waves or suffers external Electromagnetic Interference.Therefore the utility model utilizes ㄇ font metal shell 29 to cover top and the side of hard disk body 21, and below hard disk body 21, the utility model utilizes the control circuit board 22 of former external connected hand disk 20, add metal foil layer, move the below of establishing to hard disk body 21, to cover hard disk controller 25 completely.And utilize magnetic conduction screw 23 lock control circuit board 22 and hard disk body 21, allow the metal shell 29 of hard disk body 21 be connected to form one with the metal foil layer of control circuit board 22, strengthen the effect of hard disk body 21 electromagnetic wave shieldings, allow metal foil layer cover the electromagnetic interference of control circuit board 22 simultaneously, promote the effect that external connected hand disk 20 anti electromagnetic waves disturb, to form the structure of the utility model external connected hand disk 20 anti-electromagnetic interference (EMI).
Although the structure of the anti-electromagnetic interference (EMI) of the utility model, control circuit board 22 only covers the part below of the hard disk body 21 of hard disk controller 25, electromagnetic wave shielding disturbs completely, but because covering the hard disk controller 25 that the most easily generates electromagnetic waves or suffer external Electromagnetic Interference, not only can allow external connected hand disk 20 stablize running.And do not cover hard disk body 21 parts of below, and and the operation of the fierce trickle or transmission feeble signal of attonity, the electromagnetic wave impact of radiation turnover is limited, can allow the structure of the utility model external connected hand disk 20 anti-electromagnetic interference (EMI), meets the standard of EMI.
Therefore, the utility model external connected hand disk anti electromagnetic interference structure, just can add the metal shell that metal foil layer coordinates hard disk body by the control circuit board in external connected hand disk, metal foil layer and metal shell are locked formation one by recycling magnetic conduction screw, strengthens shielding hard disk body electromagnetic interference (EMI) effect.Further save the setting of existing metal cage, to reduce volume and the weight of external connected hand disk, reach the object of simplified structure.
Claims (8)
1. an external connected hand disk anti electromagnetic interference structure, is characterized in that, this external connected hand disk anti electromagnetic interference structure comprises:
Enclosing cover;
Hard disk body, is located at this enclosing cover inside, has the metal material shell of ㄇ font, by and the coated hard disk body in surrounding side, establishes hard disk controller in shell above, controls read head and slides, the data of storing on the magnetic disc dish that read-write is rotated by Spindle Motor; And
Control circuit board, comprises a metal foil layer, utilizes magnetic conduction screw to be fixed on the below of hard disk body, and covers this hard disk controller below.
2. external connected hand disk anti electromagnetic interference structure as claimed in claim 1, is characterized in that, this enclosing cover is plastic cement material.
3. external connected hand disk anti electromagnetic interference structure as claimed in claim 1, is characterized in that, this enclosing cover is metal material.
4. external connected hand disk circuit board anti electromagnetic interference structure as claimed in claim 1, is characterized in that, this control circuit board covers hard disk controller completely.
5. external connected hand disk anti electromagnetic interference structure as claimed in claim 4, it is characterized in that, this control circuit board comprises configuration section and extension, configuration section is in order to arrange the electronic component of control circuit board, and extension continues at configuration section adjacent side, extend to hard disk controller below, area covers hard disk controller completely.
6. external connected hand disk anti electromagnetic interference structure as claimed in claim 1, is characterized in that, this control circuit board is the printed circuit board (PCB) of a multiple field, comprises at least one metal foil layer.
7. external connected hand disk anti electromagnetic interference structure as claimed in claim 6, is characterized in that, this metal foil layer is metal graticule mesh.
8. external connected hand disk anti electromagnetic interference structure as claimed in claim 1, is characterized in that, the metal shell of this magnetic conduction screw locking hard disk body and the metal foil layer of control circuit board are connected to form one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284718.3U CN203895119U (en) | 2014-05-30 | 2014-05-30 | Anti-electromagnetic-interference structure of external hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284718.3U CN203895119U (en) | 2014-05-30 | 2014-05-30 | Anti-electromagnetic-interference structure of external hard disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895119U true CN203895119U (en) | 2014-10-22 |
Family
ID=51721491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284718.3U Expired - Fee Related CN203895119U (en) | 2014-05-30 | 2014-05-30 | Anti-electromagnetic-interference structure of external hard disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707202A (en) * | 2021-08-30 | 2021-11-26 | 中科美嘉半导体(北京)有限公司 | Solid state disk structure |
-
2014
- 2014-05-30 CN CN201420284718.3U patent/CN203895119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707202A (en) * | 2021-08-30 | 2021-11-26 | 中科美嘉半导体(北京)有限公司 | Solid state disk structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |