CN2930234Y - Clearning static and electromagnetic wave structure for card reader - Google Patents
Clearning static and electromagnetic wave structure for card reader Download PDFInfo
- Publication number
- CN2930234Y CN2930234Y CN 200620120468 CN200620120468U CN2930234Y CN 2930234 Y CN2930234 Y CN 2930234Y CN 200620120468 CN200620120468 CN 200620120468 CN 200620120468 U CN200620120468 U CN 200620120468U CN 2930234 Y CN2930234 Y CN 2930234Y
- Authority
- CN
- China
- Prior art keywords
- card reader
- conducting strip
- static
- connector
- electromagnetic wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Credit Cards Or The Like (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
A static and electromagnetic wave elimination card reader is characterized in that a connector inside the card reader is coated with mental pieces as the shell of the connector, a first electricity conducting piece and a second electricity conducting piece are respectively extended from the two sides of the mental pieces. After the installment of a base seat and an upper cover both of which belong to the metal outer shell of the card reader, the first electricity conducting piece contacts the inner surface of the metal outer shell and accomplishes the ground connection. A memory card is inserted into the card reader to contact the second electricity connecting card, thereby the electromagnetic wave and the static generated by the connector and the electronic assembly at the periphery are conducted by the metal piece and the electricity conducting piece to prevent any negative influences to the electronic assembly.
Description
Technical field
The utility model relates to a kind of machine that is used to read the electron storage medium, particularly has the structure of eliminating electromagnetic wave and static, i.e. a kind of elimination static of card reader and electromagnetic wave structure.
Background technology
Electronic product now all with meet miniaturization, high-performance, high accuracy, high reliability, and high degree of reaction etc. be target, make the distribution density of circuit unit too high, the volume of circuit dwindles greatly, it is more exquisite that yet circuit becomes, then having more assembly squeezes in the middle of very little space, increased the chance of disturbing, wherein with electromagnetic interference (Electromagnetic interference, EMI) and noise make us most feeling the puzzlement.
The inhibition object of electromagnetic interference mainly is divided into radiativity (Radiated) and conductibility (Conducted) electromagnetic interference, the conductibility electromagnetic interference is transmitted noise via power lead, so being connected the electromagnetic interference that electric device produced of same electric power system can disturb each other via power line, therefore, control for the conductibility electromagnetic interference, at first need do effectively to measure, select suitable components values designing filter to be prevented and treated according to the result again for the conductibility electromagnetic interference that electronic building brick produced.The radiativity electromagnetic interference then is directly via the open space transmission, need be via any transmission medium, so generally only can solve with shielding (Shielding), ground connection modes such as (Grounding).In addition, so long as electronic equipment all can produce static in various degree when running, the residual of these static also may produce harmful effect to electronic building brick.
Be used to read the card reader of electron storage medium at present, it is used for eliminating the mode of radiativity electromagnetic interference or static, mainly be that the position near connector is provided with metallic plate in casing inside, this metallic plate then connects conductor wire, make this conductor wire be connected to other conductor again, so as to electromagnetic interference that connector produced and static being conducted and getting rid of.
The utility model content
Existing card reader is used for eliminating the structure of electromagnetic interference and static, because metallic plate and lead must be installed separately, so assembly is more, assembling is trouble, and manufacturing cost is higher.Therefore, the utility model is mainly used in and solves above-mentioned existing card reader in the structural defective of eliminating electromagnetic interference and static.
To achieve these goals, the utility model provides a kind of elimination static and electromagnetic wave structure of card reader, include a metal shell and be located at the interior circuit board of this metal shell, the connector that provides memory card to plant is provided this circuit board, described connector has the housing made from sheet metal, this sheet metal also extends conducting strip is arranged, and makes this conducting strip be contacted with this metal shell.In other words, principal character of the present utility model, be that connector shell with card reader inside is directly to possess the sheet metal manufacturing of conduction property, and extend first and second conducting strip respectively from the both sides of this sheet metal, touch the metal shell of card reader by this first conducting strip, and second conducting strip is contacted with the memory card that inserts in the card reader, thereby electromagnetic interference and static that connector and peripheral electronic building brick are produced are able to conduct and eliminate via this conducting strip.
Major technique means of the present utility model, be to adopt that the punch forming technology is one-body molded on sheet metal to go out described first and second conducting strip, make these conducting strips inclined and make conducting strip have elasticity with respect to sheet metal, this sheet metal is installed in behind the connector directly the housing as connector, therefore, after the metal shell of card reader is finished assembling, allowing this first conducting strip directly oppress is contacted with metal shell and finishes ground connection, second conducting strip then is provided in to contact with memory card, whereby electromagnetic interference and static is conducted to shell.
Description of drawings
Fig. 1 is for showing the stereogram of the utility model card reader.
Fig. 2 is for showing the three-dimensional exploded view of the utility model card reader internal structure.
Fig. 3 is for showing the sectional perspective exploded view of sheet metal of the present utility model and connector assembly structure.
Fig. 4 is for showing the section plan of the utility model card reader structure.
Among the figure:
1. metal shell, 11. bases, 12. loam cakes, 2. circuit board, 3. connector, 31. terminal sockets, 32. metallic plates, 321. first conducting strips, 322. second conducting strips.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present utility model is done more detailed description, thereby the person skilled in art can be implemented after studying this specification carefully according to this.
As Fig. 1 and shown in Figure 2, the card reader that the utility model disclosed, its structure includes a metal shell 1, a circuit board 2, and is located at the connector 3 on the circuit board 2, this connector 3 mainly provides plant electron storage medium usefulness, for example memory card ... etc.
Described metal shell 1 further includes a base 11 and a loam cake 12, and this base 11 makes up the interior space that the common formation in back can be held described circuit board 2 and connector 3 with loam cake 12.
Again as shown in Figure 3, the described connector 3 that is located on the circuit board 2 has a terminal socket 31, and the sheet metal 32 that is located at these terminal socket 31 outsides, by these sheet metal 32 direct housings as connector 3; Also extend respectively the relative two sides of this sheet metal 32 has several to be skewed first conducting strip 321 and second conducting strip 322; Form the better embodiment of this first conducting strip 321 and second conducting strip 322, be utilize press machine with sheet metal in mould by punch forming, win conducting strip 321 and second conducting strip 322 are directly extended out from the both sides of this sheet metal 32 are one-body molded; Described sheet metal 32 then is provided with teat near the appropriate location on next door, being located at terminal socket 31 anti-near jacks so as to embedding also fixes, allow between sheet metal 32 and the circuit board 2 to keep the space that sub-Storage Media inserts that to power, thereby make the housing of this sheet metal 32 as connector 3.
The assembling mode of said modules, be that the circuit board 2 that will be combined with connector 3 is positioned on the base 11 and with screw circuit board 2 is fixed on the base 11, be located at that first conducting strip 321 on the sheet metal 32 is subjected to base 11 extruding this moment and perseverance keeps in touch (as shown in Figure 4), and then loam cake 12 covered on the base 11, and utilize screw with loam cake 12 lockings at base 11; The ground connection that promptly finish sheet metal 32 by first conducting strip 321 with contacting of base 11 this moment, therefore, electromagnetic interference that other electronic building brick produced on connector 3 and the circuit board 2 and static are able to be transmitted to base 11 via this sheet metal 32 and conducting strip 321 and obtain getting rid of, and avoid the harmful effect of electromagnetic interference and static to guarantee electronic building brick; Again, when memory card inserts card reader inside, make this second conducting strip 322 touch this memory card, obtain getting rid of thereby can make memory card itself and peripheral electromagnetic interference be transmitted to base 11 via the sheet metal 32 and first conducting strip 321.
The above is only in order to explain preferred embodiment of the present utility model; be not that the attempt tool is to do any pro forma restriction to the utility model; so; do relevant any modification of the present utility model or change in that identical creation spirit is following, it all should be included in the category of the utility model intention protection.
Claims (3)
1, a kind of elimination static of card reader and electromagnetic wave structure, include a metal shell and be located at the interior circuit board of this metal shell, the connector that provides memory card to plant is provided this circuit board, it is characterized in that: described connector has the housing made from sheet metal, this sheet metal also extends conducting strip is arranged, and makes this conducting strip be contacted with this metal shell.
2, the elimination static of card reader according to claim 1 and electromagnetic wave structure is characterized in that, described conducting strip includes first conducting strip and second conducting strip that extends out from the relative both sides of this sheet metal.
3, the elimination static of card reader according to claim 1 and 2 and electromagnetic wave structure is characterized in that, described conducting strip is directly to extend out from this sheet metal is one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120468 CN2930234Y (en) | 2006-06-30 | 2006-06-30 | Clearning static and electromagnetic wave structure for card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620120468 CN2930234Y (en) | 2006-06-30 | 2006-06-30 | Clearning static and electromagnetic wave structure for card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2930234Y true CN2930234Y (en) | 2007-08-01 |
Family
ID=38308599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620120468 Expired - Fee Related CN2930234Y (en) | 2006-06-30 | 2006-06-30 | Clearning static and electromagnetic wave structure for card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2930234Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021101A (en) * | 2012-11-22 | 2013-04-03 | 福建联迪商用设备有限公司 | Contact type IC (Integrated Circuit) card swiping terminal |
| US8553387B2 (en) | 2010-06-25 | 2013-10-08 | Pegatron | Electronic device |
-
2006
- 2006-06-30 CN CN 200620120468 patent/CN2930234Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8553387B2 (en) | 2010-06-25 | 2013-10-08 | Pegatron | Electronic device |
| CN103021101A (en) * | 2012-11-22 | 2013-04-03 | 福建联迪商用设备有限公司 | Contact type IC (Integrated Circuit) card swiping terminal |
| CN103021101B (en) * | 2012-11-22 | 2016-03-16 | 福建联迪商用设备有限公司 | Contact Type Ic Card card swiping terminal |
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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: 20070801 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |