EP1282926A1 - Dämpfungsvorrichtung zur dämpfung einer elektromagnetischen strahlung - Google Patents
Dämpfungsvorrichtung zur dämpfung einer elektromagnetischen strahlungInfo
- Publication number
- EP1282926A1 EP1282926A1 EP00938567A EP00938567A EP1282926A1 EP 1282926 A1 EP1282926 A1 EP 1282926A1 EP 00938567 A EP00938567 A EP 00938567A EP 00938567 A EP00938567 A EP 00938567A EP 1282926 A1 EP1282926 A1 EP 1282926A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug
- damping
- section
- electromagnetic radiation
- damping device
- 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.)
- Granted
Links
- 230000005670 electromagnetic radiation Effects 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 68
- 230000005855 radiation Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/44—Means for preventing access to live contacts
- H01R13/443—Dummy plugs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6598—Shield material
- H01R13/6599—Dielectric material made conductive, e.g. plastic material coated with metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Definitions
- the invention relates to a damping device for damping electromagnetic radiation, which is emitted by an electrical plug-in device located in a receiving socket and a circuit board, the plug-in device being suitable for the electrical connection of a transceiver, in particular an optoelectronic transceiver.
- Figure 1 shows the housing of a computer or a data processing device according to the prior art.
- the computer housing has a plurality of receptacles or slots (so-called ports) on its rear wall for inserting optoelectronic transceivers into the computer housing.
- the front of the transceiver has an electrical connector for connecting the transceiver to the data processing device located in the computer housing.
- the transceiver is also connected to at least one optical transmission line or glass fiber.
- the transceiver receives electrical signals via the plug from an electrical interface, performs a signal conversion in a signal conversion device and emits the converted optical signal to the glass fiber via an optical interface. Conversely, the transceiver receives an optical signal via the glass fiber, converts this optical signal into an electrical signal and transmits it to the data processing device via the plug.
- FIG. 2 shows in cross section a transceiver according to the prior art which is plugged into a receiving socket of the computer housing.
- the one at the. The cut surface of the transceiver before the electrical plug is inserted in a socket provided in the receptacle for the electrical connection of the transceiver to a piezo located in the computer housing. tine.
- the plug socket is connected via electrical lines and soldering points to a circuit board located in the computer housing.
- the data transfer rate in data processing equipment is getting higher and is already in the gigahertz range.
- the frequency of the sinusoidal fundamental wave is therefore, for example, 1.5 gigahertz.
- electromagnetic compatibility EMC is the ability of a device to work satisfactorily in its electromagnetic environment without carrying intolerable interference into the environment or other devices.
- the invention provides a damping device for damping electromagnetic radiation which is emitted by an electrical plug-in device located in a receiving socket and the circuit board, which is provided for the electrical connection of a transceiver to a data processing device, with a plug section for inserting the damping device into the A Receiving socket, wherein the stopper section consists of a damping material that absorbs the electromagnetic radiation emitted by the plug device and a handle section for manual actuation of the damping device.
- the electromagnetic radiation is preferably emitted in radiation frequency ranges which are determined by the data transmission speed within the data processing device and by the geometric dimensions of the receiving socket.
- the damping material preferably absorbs a high proportion of the radiated energy in the predetermined radiation frequency ranges.
- the damping material consists of an elastomer or a plastic which absorbs a high proportion of the radiated energy in the predetermined radiation frequency range.
- the elastomer contains
- gyrotropic materials such as carbon particles, ferrites or iron dust particles are provided for further energy absorption.
- the damping material consists of a purely gyrotropic material.
- a metal layer is additionally provided for shielding the electromagnetic radiation emitted.
- This metal layer preferably runs parallel to the end face of the plug section.
- the cross section of the handle section widens towards the plug section and has a mechanical stop for the computer housing.
- the handle section consists of the same damping material as the damping section.
- the handle section is made of metal for additional electromagnetic shielding.
- the energy absorbed by the damping material is converted into thermal energy, which is preferably dissipated through openings which are provided in the receiving bushing.
- the plug section When plugged in, the plug section preferably fills the receptacle completely.
- the stopper section has a projection for snapping the damping device into the receptacle.
- Figure 1 shows a computer housing with a plurality of receptacles and a pluggable transceiver according to the prior art
- FIG. 2 shows a cross-sectional view through a conventional computer housing with a receptacle into which a flap for electromagnetic shielding is attached according to the prior art
- FIGS. 3a, 3b perspective views of a particularly preferred embodiment of the damping device according to the invention.
- Figure 4 is a cross-sectional view of a damping device according to the invention, which is inserted into a receptacle of a computer housing.
- FIGS. 3a, 3b show perspective views of a particularly preferred embodiment of the damping device 1 according to the invention.
- the damping device 1 serves to dampen the electromagnetic radiation which is emitted by an electrical plug-in device.
- the damping device 1 consists of a stopper section 2 for inserting the damping device 1 into a receptacle of the computer housing.
- the plug section 2 consists of a Nem damping material that absorbs the electromagnetic radiation emitted by the plug device.
- the damping device 1 also has a grip section 3 for manual actuation of the damping device 1.
- the cross section of the handle section 3 towards the plug section 2 increases or widens in an area 3a and forms a mechanical stop 3b for the stop of the damping device 1 according to the invention against the computer housing.
- the handle section 3 preferably has a finger-friendly indentation 3c for simplified actuation.
- the plug section 2 has an end face 2a.
- the height H, the width B and the depth T of the stopper section 2 are preferably dimensioned such that the receptacle A is completely filled in when inserted.
- FIG. 4 shows the damping device 1 according to the invention, which is inserted into a receiving socket 4 of a computer housing 5.
- the receptacle 4 has an electrical
- Plug device 6 which is connected via electrical lines 7 to soldering points 8 on a computer board 9.
- the solder points 8 are connected via signal lines 10 to data processing units (not shown) on the main board 9.
- the receptacle 4 is attached to the main board 9 with soldering legs 11a, 11b.
- the plug section 2 consists of a damping material which absorbs the electromagnetic radiation emitted by the plug device 6 and converts it into thermal energy.
- the thermal energy generated in this way is guided by the damping device 1 via heat dissipation openings 4a to 4f in the receiving bushing 4.
- the frequencies of the electromagnetic radiation emitted by the plug device 6 lie in radiation frequency ranges, which depends on the data transmission speed on the data transmission lines 10 and the geometry of the receiving socket 4.
- the damping material of the plug section 2 is selected such that the absorbed portion of the emitted electromagnetic energy is particularly high in the radiation frequency ranges. Energy components are attenuated increasingly by the damping material 2 from a lower limit frequency.
- the damping material of the plug section 2 preferably consists of an elastomer or plastic, the molecular chains of which vibrate in the radiation frequency ranges and thus largely convert the radiated electromagnetic energy into thermal energy.
- the elastomer or plastic additionally has added gyrotropic materials such as carbon particles, ferrites or iron dust particles or the like, which bring about additional energy absorption.
- the damping material consists of a purely gyrotropic material.
- a metal layer is additionally provided, which additionally prevents the electromagnetic part from spreading, which is not converted into heat by damping.
- This metal layer preferably runs parallel to the end face 2a of the plug section 2.
- This embodiment offers the advantage that, in addition to the attenuation of the electromagnetic radiation due to energy conversion, the non-converted electromagnetic energy is also shielded. This additionally increases the electromagnetic compatibility EMC of the data processing device.
- the handle Section 3 can be made from any material.
- the handle section 3 consists of the same material as the plug section, ie of an elastomer or plastic. As a result, the damping device 1 can be produced particularly inexpensively.
- the damping device 1 according to the invention is inserted with the plug section 2 into the receptacle 4. Due to the elastic properties of the plastic, the damping device 1 sits firmly in the receptacle 4 without the need for additional fastening means.
- the plug section 2 additionally has projections which are designed as a snap lock, so that the damping device 1 engages in the receiving bushing 4.
- the damping device 1 according to the invention ensures a very strong reduction in the electromagnetic radiation emitted by the plug device 6 and thus a very high electromagnetic compatibility EMC of the data processing device located in the housing 5. This lowering is achieved by simply plugging in the damping device 1 without the operator having to carry out an additional fixation, for example by means of a screw. This ensures that the damping device 1 according to the invention is handled particularly quickly.
- the damping device 1 according to the invention is suitable for any receptacle bushings with any cross-section and any depth. Since, due to the damping device 1 according to the invention, no folding devices or the like are necessary for electromagnetic shielding on the housing 5, the housing 5 can also be produced particularly inexpensively.
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2000/001573 WO2001089042A1 (de) | 2000-05-17 | 2000-05-17 | Dämpfungsvorrichtung zur dämpfung einer elektromagnetischen strahlung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1282926A1 true EP1282926A1 (de) | 2003-02-12 |
| EP1282926B1 EP1282926B1 (de) | 2009-07-08 |
Family
ID=5647669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00938567A Expired - Lifetime EP1282926B1 (de) | 2000-05-17 | 2000-05-17 | Dämpfungsvorrichtung zur dämpfung einer elektromagnetischen strahlung |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1282926B1 (de) |
| JP (1) | JP2004515051A (de) |
| DE (1) | DE50015684D1 (de) |
| TW (1) | TW535492B (de) |
| WO (1) | WO2001089042A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20201170U1 (de) | 2002-01-15 | 2002-05-29 | Infineon Technologies AG, 81669 München | Vorrichtung zum Schutz der Steckeraufnahme eines opto-elektronischen Bauelements |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3837772C1 (en) * | 1988-11-07 | 1989-10-12 | Amphenol-Tuchel Electronics Gmbh, 7100 Heilbronn, De | RF-proof (HF-proof) protective cap for plug connectors |
| US5186860A (en) * | 1990-05-23 | 1993-02-16 | Amp Incorporated | Inert electrode comprising a conductive coating polymer blend formed of polyanisidine and polyacrylonitrile |
| EP0852411A1 (de) * | 1997-01-06 | 1998-07-08 | Alcatel Cabling Systems S.A./N.V. | Elektrischer Anschluss |
| DE29700965U1 (de) * | 1997-01-21 | 1997-03-13 | Wilhelm Rutenbeck GmbH & Co., 58579 Schalksmühle | Anschlußdose für Datenleitungen |
-
2000
- 2000-05-17 EP EP00938567A patent/EP1282926B1/de not_active Expired - Lifetime
- 2000-05-17 JP JP2001585361A patent/JP2004515051A/ja active Pending
- 2000-05-17 DE DE50015684T patent/DE50015684D1/de not_active Expired - Lifetime
- 2000-05-17 WO PCT/DE2000/001573 patent/WO2001089042A1/de not_active Ceased
-
2001
- 2001-05-15 TW TW090111642A patent/TW535492B/zh active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0189042A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| TW535492B (en) | 2003-06-01 |
| EP1282926B1 (de) | 2009-07-08 |
| DE50015684D1 (de) | 2009-08-20 |
| WO2001089042A1 (de) | 2001-11-22 |
| JP2004515051A (ja) | 2004-05-20 |
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