CN1306520C - Optical disc machine - Google Patents
Optical disc machine Download PDFInfo
- Publication number
- CN1306520C CN1306520C CNB2004100343417A CN200410034341A CN1306520C CN 1306520 C CN1306520 C CN 1306520C CN B2004100343417 A CNB2004100343417 A CN B2004100343417A CN 200410034341 A CN200410034341 A CN 200410034341A CN 1306520 C CN1306520 C CN 1306520C
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- player
- over cap
- movement
- conductor
- outstanding
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- Elimination Of Static Electricity (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to an optical disc player which comprises a player core, a protective cover, an upper protruding conductor, a lower protruding conductor and a lower cover of the optical disc player, wherein the protective cover is arranged below the player core, and has an upper surface and a lower surface; the protective cover also comprises the upper protruding conductor and the lower protruding conductor; the upper protruding conductor protrudes beyond the upper surface and is in electrical contact with the player core, and relatively, the lower protruding conductor protrudes beyond the lower surface; the lower cover of the optical disc player is arranged below the protective cover, is grounded, and is in electrical contact with the lower protruding conductor.
Description
Technical field
The present invention relates to a kind of CD player, and be particularly related to a kind of CD player that lowers electromagnetic interference and prevent electrostatic interference.
Background technology
Thin optical disc machine generally all has elements such as movement (traverse) and microscope carrier.Wherein movement comprises Spindle Motor (spindle motor), optical read head (pickup), guide rail (guide rail) and rotating disk elements such as (turntable) at least.
Because the subelement of movement, it for example is Spindle Motor, the source takes place in the electromagnetic radiation that belongs to the meeting launching electromagnetic wave, therefore when the energy of electromagnetic radiation is higher, the electromagnetic radiation meeting becomes the electronic noise that disturbs electronic signal and reduce signal integrity, thereby (electromagneticinterference, problem EMI) produces to have electromagnetic interference (EMI).And electronic noise also may be from lead, circuit board printing stitching etc.After electronic noise is radiated the peripheral region, on the signal wire and other conductor near can being coupled to.
On the other hand, (electrostatic discharge, interference ESD) also is a problem common in the CD player to static discharge.For CD player, external static is many from human finger, especially at dry and cold environment, and the easier static electrification of human body.When a charged user of finger opened the CD player use, static can be delivered to the CD player position that is touched by finger tip moment, and the damaged compact disk machine.
For thin optical disc machine, it is important that the interference problem of above-mentioned static discharge more seems.Because general user opens the action that CD player can be put into CD, so when the moment of finger tip contact movement, static can be released and produce instantaneous pressure.Thus, cause the electronic component of movement and periphery to damage easily.
Simultaneously, the CD player microscope carrier of prior art mostly is non-conductive material, so there is the too high problem of electromagnetic radiation energy easily in CD player.For some thin optical disc machine, CD player microscope carrier bottom can be provided with the metal lower cover, in the hope of bringing into play shielding effect and reducing electromagnetic interference (EMI).Moreover because the needs of slimming cover under the metal, the position of the subelement of corresponding movement can have corresponding opening, directly touches the metal lower cover to avoid element.Yet these openings but provide the leakage path of electromagnetic radiation, make the shield effectiveness of anti-electromagnetic interference (EMI) subtract greatly.Meanwhile, the problem of electrostatic interference but still exists.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of CD player,, make external electrostatic interference be minimized by the movement ground connection that allows CD player.And, utilize conducting strip to be covered on the opening of over cap, make over cap bring into play the adequate shielding effect, and allow electromagnetic interference be lowered simultaneously.
According to above-mentioned purpose, the present invention proposes a kind of CD player, and this CD player comprises the over cap of movement, conduction, upward outstanding conductor, outstanding conductor and CD player lower cover down.Over cap is arranged at this movement below, and this over cap has in the face of the upper surface of movement and back to the movement lower surface, and lower surface is with respect to upper surface.Wherein over cap comprises that outstanding conductor reaches outstanding conductor down.Go up outstanding conductor and protrude in upper surface, and electrically contact with movement.Relatively, following outstanding conductor then protrudes in lower surface.The CD player lower cover is arranged at over cap below and ground connection, and this CD player lower cover electrically contacts with following outstanding conductor.When the static in the external world entered movement, static can conduct to over cap via last outstanding conductor in regular turn, then conducted to the CD player lower cover by giving prominence to conductor down again.
According to a further object of the present invention, a kind of CD player is proposed, this CD player comprises over cap, conducting strip, following outstanding conductor and the CD player lower cover of movement, conduction.Over cap is arranged at the movement below, and this over cap has at least one opening.And conducting strip covers this opening and electrically contact by screw and movement.Outstanding conductor protrudes in the lower surface of over cap down.The CD player lower cover electrically contacts with following outstanding conductor.
In the CD player of the invention described above, over cap is the metal coating lid.And the bottom of metal coating lid is provided with down outstanding conductor.
In addition, the CD player lower cover is arranged at metal coating lid below and ground connection, and the CD player lower cover electrically contacts mutually with following outstanding conductor.
Moreover in the CD player of the invention described above, conducting strip is one to be attached at the metal forming that metal coating covers.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the vertical view that shows the CD player over cap of first embodiment of the invention.
Fig. 2 shows along the CD player over cap cut-open view of the profile line 1A-1A ' among Fig. 1 and according to the side schematic view of the CD player movement of first embodiment of the invention.
Fig. 3 is the partial enlarged drawing of regional A in the displayed map 2.
Fig. 4 is the partial enlarged drawing of area B in the displayed map 2.
Fig. 5 is the vertical view that shows according to the CD player over cap of second embodiment of the invention.
Fig. 6 shows along the CD player over cap cut-open view of the profile line 5A-5A ' among Fig. 5 and according to the side schematic view of the CD player movement of second embodiment of the invention.
Fig. 7 shows according to the CD player over cap cut-open view of the third embodiment of the present invention and the side schematic view of movement.
Description of reference numerals:
100,500,700: CD player
102,502: movement
104,504,702: over cap
106: upward outstanding conductor
108,508,706: following outstanding conductor
110: the CD player lower cover
112: pallet
114: Spindle Motor
1162,1164,5102,5104,5106: screw hole
118,506: conducting strip
120: the over cap upper surface
122: the over cap lower surface
512: screw
704: conductive material
Embodiment
Because the electronic component in the CD player forms the generation source of electromagnetic radiation easily, produce the problem of electromagnetic interference (EMI), add extraneous electrostatic interference, make the usefulness attenuating of CD player and the life-span of electronic component shorten.Therefore the objective of the invention is to solve above-mentioned puzzlement.Embodiment such as following example.
Embodiment one
Please be simultaneously with reference to Fig. 1 and Fig. 2; Fig. 1 is the vertical view that shows the CD player over cap of first embodiment of the invention, and Fig. 2 shows along the CD player over cap cut-open view of the profile line 1A-1A ' among Fig. 1 and according to the side schematic view of the CD player movement of first embodiment of the invention.
The contiguous bottoms that are arranged at movement 102 of over cap 104, and this over cap 104 has in the face of a upper surface 120 of movement 102 and back to movement 102 a lower surface 122, and lower surface 122 is with respect to upper surface 120.
Moreover over cap 104 comprises that outstanding conductor 106 reaches outstanding conductor 108 down.Upward outstanding conductor 106 is given prominence to and is arranged at upper surface 120, and electrically contacts with movement 102.Relatively, 108 outstanding lower surfaces 122 that are arranged at of following outstanding conductor, and electrically contact with the CD player lower cover 110 that is arranged at over cap 104 belows, wherein, this CD player lower cover 110 is to be in ground state.
Preferably, over cap 104 be metal with high conductivity as material, and go up outstanding conductor 106 and down outstanding conductor 108 is one-body molded with over cap 104.Also be ductile owing to metal, the above outstanding conductor 106 of institute can be an elastic body with following outstanding conductor 108 simultaneously.
For instance, please refer to Fig. 3, its demonstration be the partial enlarged drawing of regional A among Fig. 2.The outstanding conductor 106 of going up among Fig. 3 is over caps 104 of stamped metal material and form and be similar to down L shaped excrescence.Also have, please refer to Fig. 4, its demonstration be the partial enlarged drawing of area B among Fig. 2.The over cap 104 that following outstanding conductor 108 among Fig. 4 is same stamped metal materials and form the excrescence of an approximate del.
By last outstanding conductor 106 conducting movements 102 and over cap 104, and by down outstanding conductor 108 conducting over caps 104 and CD player lower cover 110, movement 102 is to the state for conducting between the CD player lower cover 110.
Therefore, the static when the external world, for example the user on one's body with static, when entering movement 102, static can conduct to over cap 104 via last outstanding conductor 106 in regular turn, then conducts to CD player lower cover 110 by outstanding conductor 108 down again, last ground connection discharges.Thus, the electronic component of movement 102 or contiguous movement is disturbed by the phenomenon of static discharge promptly no longer, that is to say, has brought into play the function of electrostatic defending.And electromagnetic radiation energy also can see through this transmission mechanism and reduce, and makes the ability of CD player 100 anti-electromagnetic interference (EMI) promote synchronously.
In addition, in fact can have at least one opening on the over cap 104 of thin optical disc machine 100 to meet design requirement, opening 1162,1164 as shown in fig. 1.Become the leakage path of electromagnetic radiation for fear of these openings, and then lower the ability of anti-electromagnetic interference (EMI), can optionally seal whole openings or an opening wherein with a conducting strip.For example on opening 1164, cover conducting strip 118,, reduce number of openings to promote the ability of anti-electromagnetic interference (EMI) in order to electromagnetic radiation shielding.Conducting strip wherein for example is the metal forming (aluminium foil, Copper Foil etc.) of the good high conductivity of ductility.
Further situation is, when conducting strip 118 and movement 102 have when electrically contacting, static can be conducted on the over cap 104 by movement 102 equally, the static conduction effect that performance and last outstanding conductor 106 are same.
Embodiment two
Please be simultaneously with reference to Fig. 5 and Fig. 6, Fig. 5 shows is vertical view according to the CD player over cap of second embodiment of the invention.Fig. 6 shows is along the CD player over cap cut-open view of the profile line 5A-5A ' among Fig. 5 and according to the side schematic view of the CD player movement of second embodiment of the invention.
The CD player 500 of present embodiment and the CD player 100 of embodiment one, main difference are to replace upward outstanding conductor 106 with conducting strip 506, and other identical components are then continued to use same tag, and do not repeat them here.
Conducting strip 506 covers these a little openings 5102,5104 and 5106 and electrically contact with movement 502 simultaneously.Wherein conducting strip 506 is metal formings of the good high conductivity of ductility.Know clearly it.As shown in Figure 5, conducting strip 506 is connected with a screw 512 that is fixed in movement 502 bottoms, uses it as the bridge of conducting movement 502 and over cap 504.
Apparently, possible electromagnetic radiation leakage passage (opening) has not only been sealed in the setting of conducting strip 506, also static can be guided to over cap 504 by movement 502.
In addition, the lower surface of over cap 504 is provided with outstanding conductor 508, and in order to electrically contact with the CD player lower cover 110 that is arranged at over cap 504 belows and ground connection, wherein outstanding conductor 508 is preferably one-body molded and be an elastic body with over cap 504 down.
Above-mentioned set-up mode can be brought into play the effect identical with first embodiment; that is; when the static in the external world enters movement 502; static can conduct to over cap 504 via conducting strip 506; then conduct to CD player lower cover 110 via giving prominence to conductor 508 down again, the ground connection by CD player lower cover 110 is released at last.
As shown in the above description, not only can reduce the interference of electromagnetic radiation, can also effectively prevent the interference of static, bring into play the purpose of dual effect simultaneously with the electronic component that reaches protection CD player movement and periphery according to the second embodiment of the present invention.
Embodiment three
Please refer to Fig. 7, its demonstration be according to the CD player over cap cut-open view of the third embodiment of the present invention and the side schematic view of movement.In Fig. 7, the CD player 700 of present embodiment is that with CD player 100 differences of embodiment one over cap 702 can be different materials, and other identical components are then continued to use same tag, and do not repeat them here.
Over cap 702 is to be the megohmite insulant of plastic material for example, and is coated with layer of conductive material 704 above over cap 720, to form a shielding cap, comes anti-electromagnetic interference (EMI) in order to the performance shielding effect.Conductive material 704 can be the acrylic resin paint that for example includes metallics, or one deck plated metal.
Going up outstanding conductor 106 conducts by this conductive material 704 and following outstanding conductor 706.When the static in the external world entered movement 102, static can conduct to conductive material 704 via last outstanding conductor 106 in regular turn, then conducted to CD player lower cover 110 by giving prominence to conductor 706 down again, and last ground connection discharges.
The disclosed CD player of the above embodiment of the present invention; be by the outstanding conductor or the mode of conducting strip are set on the CD player over cap; CD player movement and CD player lower cover are conducted; make external static be seen through the outstanding conductor or the conduction of conducting strip and then ground connection and discharge, reach the purpose of electrostatic defending.
On the other hand, utilize conducting strip, can reach the shield effectiveness that promotes anti-electromagnetic interference (EMI) the closure of openings on the over cap.Obviously, CD player of the present invention has the dual-use function that prevents electrostatic interference simultaneously and reduce electromagnetic interference (EMI).
In sum; though the present invention by a preferred embodiment openly as above; yet it is not in order to limit the present invention; those skilled in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention should be as the criterion with accompanying claims institute confining spectrum.
Claims (16)
1. CD player comprises:
One movement;
The over cap of one conduction, it is arranged at described movement below, described over cap has in the face of a upper surface of described movement and back to described movement and with respect to a lower surface of described upper surface, described over cap comprises: outstanding conductor on, it protrudes in described upper surface, and electrically contacts with described movement; And outstanding once conductor, it protrudes in described lower surface; And
One CD player lower cover, it is arranged at described over cap below, and described CD player lower cover electrically contacts with described time outstanding conductor.
2. CD player as claimed in claim 1, the material of wherein said over cap are metal, and describedly outstanding conductor and described outstanding conductor is one-body molded with described over cap respectively down.
3. CD player as claimed in claim 1, wherein said outstanding conductor is an elastic body.
4. CD player as claimed in claim 1, wherein said outstanding conductor down is an elastic body.
5. CD player as claimed in claim 1 is coated with layer of conductive material on the wherein said over cap.
6. conductive material and described outstanding conductor down that CD player as claimed in claim 5, wherein said outstanding conductor dbus are crossed described layer electrically contact.
7. CD player as claimed in claim 1, wherein said over cap are metal material, and described over cap also has at least one opening, and described CD player also comprises:
One conducting strip, it is covered on the described opening, and described conducting strip and described movement electrically contact.
8. CD player as claimed in claim 7, wherein said conducting strip are metal formings.
9. CD player comprises:
One movement;
The over cap of one conduction, it is arranged at described movement below, and described over cap has the upper surface in the face of described movement, with respect to a lower surface and at least one opening of described upper surface;
Outstanding once conductor, it protrudes in described lower surface;
One conducting strip, it covers described opening and electrically contacts with described movement; And
One CD player lower cover, it is arranged at described over cap below, and described CD player lower cover and described outstanding conductor down electrically contact;
When the static in the external world entered described movement, static can see through the described conducting strip of described over cap and the lower cover that described outstanding conductor down conducts to described CD player in regular turn.
10. CD player as claimed in claim 9, the material of wherein said over cap are metal, and described down outstanding conductor and described over cap are one-body molded.
11. CD player as claimed in claim 9, wherein said outstanding conductor down is an elastic body.
12. CD player as claimed in claim 9, wherein said conducting strip are metal formings.
13. a CD player comprises:
One movement;
The over cap of one conduction, it is arranged at described movement below, and described over cap has at least one opening;
One conducting strip, it covers described opening and electrically contacts by screw and described movement;
Outstanding once conductor, it protrudes in a lower surface of described over cap; And
One CD player lower cover, itself and described outstanding conductor down electrically contact.
14. CD player as claimed in claim 13, wherein said conducting strip are metal formings.
15. CD player as claimed in claim 13, wherein said CD player lower cover are arranged at described over cap below and ground connection.
16. CD player as claimed in claim 13, wherein said outstanding conductor down and described over cap are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100343417A CN1306520C (en) | 2004-04-12 | 2004-04-12 | Optical disc machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100343417A CN1306520C (en) | 2004-04-12 | 2004-04-12 | Optical disc machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1684193A CN1684193A (en) | 2005-10-19 |
| CN1306520C true CN1306520C (en) | 2007-03-21 |
Family
ID=35263455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100343417A Expired - Fee Related CN1306520C (en) | 2004-04-12 | 2004-04-12 | Optical disc machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1306520C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105967B (en) * | 2006-07-10 | 2010-11-17 | 广明光电股份有限公司 | CD-ROM drive movement structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393915A2 (en) * | 1989-04-17 | 1990-10-24 | International Business Machines Corporation | Magnetic disk drive with seal |
| CN1271940A (en) * | 1999-04-27 | 2000-11-01 | 国际商业机器公司 | Hard disk driver and conductive sheet used for said hard disk driver |
-
2004
- 2004-04-12 CN CNB2004100343417A patent/CN1306520C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393915A2 (en) * | 1989-04-17 | 1990-10-24 | International Business Machines Corporation | Magnetic disk drive with seal |
| CN1271940A (en) * | 1999-04-27 | 2000-11-01 | 国际商业机器公司 | Hard disk driver and conductive sheet used for said hard disk driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1684193A (en) | 2005-10-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20070321 Termination date: 20160412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |