DE102008052857A1 - Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium - Google Patents

Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium

Info

Publication number
DE102008052857A1
DE102008052857A1 DE200810052857 DE102008052857A DE102008052857A1 DE 102008052857 A1 DE102008052857 A1 DE 102008052857A1 DE 200810052857 DE200810052857 DE 200810052857 DE 102008052857 A DE102008052857 A DE 102008052857A DE 102008052857 A1 DE102008052857 A1 DE 102008052857A1
Authority
DE
Germany
Prior art keywords
characterized
plug
device according
recognition means
power supply
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.)
Withdrawn
Application number
DE200810052857
Other languages
German (de)
Inventor
Bernd Krafft
Ralf Tillmanns
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technus KG (gmbh & Co)
KEM GmbH
KEM-GMBH
Technus KG & Co GmbH
Original Assignee
KEM GmbH
KEM-GMBH
Technus KG & Co GmbH
Technus KG (gmbh & Co)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KEM GmbH, KEM-GMBH, Technus KG & Co GmbH, Technus KG (gmbh & Co) filed Critical KEM GmbH
Priority to DE200810052857 priority Critical patent/DE102008052857A1/en
Publication of DE102008052857A1 publication Critical patent/DE102008052857A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64Means for preventing incorrect coupling
    • H01R13/641Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/703Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • H01R2201/04Connectors or connections adapted for particular applications for network, e.g. LAN connectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45

Abstract

The invention relates to a device for a network connection, in which in addition to data and a supply current is transferable, with at least one connector part (1). In order to reliably prevent the formation of switching or tearing sparks when disconnecting the connection, it is proposed that the plug connection part (1) has a detection means (5) which is arranged to detect the release of the connection (2, 3) and a leading one To provide signal for switching the power supply (6), so that no power supply contacts (16) no break spark is formed.

Description

  • The Invention relates to a device for a network connection, in addition to data, a supply current transferable is and has at least one connector part.
  • Computers, printers, scanners, hard drives, multimedia devices and the like are now connected to exchange data over a network. As the standard for the wired data connection, the Ethernet has prevailed. There are different specifications and data transfer rates. Very common is the so-called Fast Ethernet with 100 MBit / s. For this purpose, eight-core cables are used and, as plug-in connectors, eight-pin connectors and sockets named RJ45 according to the standard IEC 60603-7 used.
  • It However, it is possible that not only data about the network will be transmitted. An evolution introduces the so-called "Power over Ethernet", abbreviated to "PoE" that connects to the network connected devices via the Ethernet connection cable and the connector parts additionally powered can be. This can be with these consumers Power supply can be saved and also deleted the additional installation of power supply cables. As a conductor, the unused or the signal-carrying Wire pairs of the connection cable used for the network become.
  • There according to the IEEE standard 802.3af the power consumption of energy consumers is limited to about 13 W usable power is the power over Ethernet so far limited to network-enabled devices, who need relatively little energy, like cameras or Wi-Fi access points. Because of this, the future standard IEEE 802.3at developed as PoE + is called and also devices with significantly higher power requirements can supply the power of the transmission line (a channel) of 15W (U = 48V, I = 320mA) to 30W (U = 72V; I = 420 mA) is increased. For later Standards are even planned for an output of 70W.
  • Around to prevent the energy consuming device (will also called "powered device" or "PD" for short) when connecting to the energy supplier ("Power Sourcing Equipment "or" PSE "for short) possibly too high voltage is damaged, is a protection circuit Prior art, which controls the power supply of the PSE and initially only a small voltage is applied to the PD. The protection circuit also measures the input resistance of the PD, assigns it a defined performance class and only then puts the full Voltage depending on the measured resistance or the associated performance class.
  • One Disadvantage of high current flows, however, is that when disconnecting, ie when pulling out the RJ45 connector from the ethernet socket, break-off sparks arise, which are their electrical Destroy contacts permanently. It is also important to take into account that the Ethernet connector parts in terms of their dimensions only on the data transfer, but not on the transfer are designed by high supply currents.
  • The above-mentioned protection circuit can not prevent break-off sparks because when disconnecting the full voltage is still applied.
  • task The invention is therefore to propose a device by the formation of switching or Abreißfunken when disconnecting the connection is reliably prevented.
  • These Task is in accordance with the main claim in a device with at least one connector part for a network connection, in addition to data, a supply current transferable is, solved by the fact that the connector part a Detection means which is set up, the release recognize the connection and a leading signal for switching to supply the power supply, so connect to power contacts no break-off spark forms. The detection means switches the power supply of the energy supplier or the energy consumer in such a way, that the applied voltage is either diminished or completely is turned off. This happens prematurely, that is, before the data and power transmitting connection between the two devices is disconnected. Therefore, it can be between the contacts of the connector parts come to no sparking.
  • advantageous Embodiments are specified in the subclaims and are explained below.
  • The Switch off or reduce the voltage before disconnecting the connection can be done easily by the recognition means is placed directly in the supplying circuit to switch it.
  • The detection means may also be connected to a circuit arrangement which is connected to the supplying circuit or a power supply unit, in particular a power supply. The circuit then measures via the resistance of the detection means whose circuit state and controls the on coupled, powering circuit by turning on or off or reducing the voltage. The circuit arrangement can also be connected to a power supply and in this way regulate the current via a voltage change.
  • The Detection means as is leading electrical contact of the connector part educated. Leading contact means that an electric Contact of the connector part closed at a time or is opened before the contacts of the connector parts to be separated for data and power transmission. By the leading contact can thus prematurely interrupt the power become. The leading electrical contact can, as described above, arranged directly in the supplying circuit or with a circuit arrangement be connected, which controls the power.
  • The Detecting means can also be used as a mechanical switch, in particular Micro switch, or is designed as an optical switch. Of the For example, optical switches may include light emitting diodes and photodiodes.
  • The Plug-in connector is designed as RJ45 plug or as RJ45 socket This makes it possible to establish a network connection via Ethernet.
  • RJ45 connector have a latching tongue in the RJ45 socket when plugging engages and locks both connectors. To her To be able to solve it again first be pressed on the latching tongue. The timing the latching tongue is therefore necessarily a separation of the electrical Contacts of RJ45 plug and RJ45 socket ahead. It is because of that advantageous in that the detection means with a latching tongue of the plug mechanically connected, because in this way the switch in front the separation is actuated. Here for the detection means a microswitch provided. As a means of detection can also the Detent tongue itself be formed by electrically conductive Has switching contacts.
  • The Recognition means may also be arranged on the socket. It is then, for example, designed as a pressure-sensitive micro-switch, the so arranged on the socket that he mechanically by a plugged in when pulling out is actuated, before the electrical contacts of RJ45 plug and RJ45 socket be separated.
  • The Recognition means may also be a contact strip or movable circuit board be that when pulling the plug from the socket a movable PCB is moved, thus closing a contact. Depending on the construction or arrangement, when operated opened by pulling out the plugged plug switching contacts or closed.
  • The The invention will be exemplified with reference to a drawing described, with further advantageous details the figures can be taken from the drawing.
  • functionally the same parts are provided with the same reference numerals.
  • The Figures of the drawing show in detail:
  • 1 a schematic representation of two connected data transmission and power supply systems,
  • 2a a RJ45 socket with plug in vertical section,
  • 2 B a RJ45 jack with plug out 2a with pressed latch,
  • 3a a RJ45 socket with detection means and inserted plug in vertical section,
  • 3b an RJ45 socket out 3a with partially unplugged plug, and
  • 4 schematically the basic structure of a circuit arrangement of the device with a protection circuit.
  • 1 shows a schematic representation of two connected data transmission and power supply systems. These are a data-transmitting, power-supplying device 9 (Power Sourcing Equipment, PSE) and a data-transmitting, power-consuming device 10 (Powered Device, PS). Both devices 9 . 10 Each has an Ethernet socket as connection 3 on, in which a connecting cable 4 with matching RJ45 plugs 2 is plugged. In the drawing, for reasons of clarity, only three wires 14 of the cable 4 while common Ethernet cables have eight wires. Both sockets 3 are with a data interface 7 connected to the data via the cable 4 transferred to. In this way, a common Ethernet network is formed.
  • In addition, both devices 9 . 10 for "Power over Ethernet", short PoE furnished. Here to the power supply unit PSE 9 a power supply 6 on that too with the ethernet jack 3 connected is. The supply current is so over the Ethernet cable 4 the power consuming Ge advises PD 10 provided and can by a consumer 8th be used. For example, this can be done on a separate power supply of the PD 10 be waived. The supply current can also be via the wires 14 of the Ethernet cable 4 are transmitted, which serve the data transmission, since it is the supply current to DC while the data is transmitted in a frequency modulated manner.
  • Disconnect the connection by putting one of the plugs 2 from a socket 3 pulls, then can plug in between the electrical contacts 2 and socket 3 form a break-off spark that permanently damages the electrical contacts and the connector parts. To prevent this, is on at the connector part 1 a detection means 5 provided that turns off the power before the power-supplying circuit by pulling out a plug 2 is interrupted. The detection means 5 is with a control circuit 11 connected, in turn, the power supply of the power supply 6 turns on or off. The detection means 5 but could also be designed as a switch and directly turn on or off the power supply circuit. The detection means can 5 be formed as well as leading contact and interrupt the supply current before the electrical contacts of the connector part 1 be separated. It may alternatively be a mechanical or optical switch, either on the socket 3 or on the plug 2 is arranged (see also the 2a to 3b ). A detection means 5 is both the connector part 1 of the PD 10 as well as at the connector part 1 of the PSE 9 provided to both devices 9 . 10 before pulling out the plug 2 to switch off the supply current. Will the plug 2 from the socket 3 of energy consuming PD 10 pulled, then closes, for example, designed as a switch detection means 5 one or more wire pairs 14 acting as a signal line 17 serve, in short. The change of the resistance of the signal line 17 is from the control circuit 11 measured, then the power supply 6 off.
  • An embodiment of the device show the 2a and 2 B in which a RJ45 socket 3 with plug 2 shown in vertical section. The plug 2 is in the socket 3 plugged in and is in this position by a latching tongue 12 with a catch 15 held. The power is supplied by a pair of wires 14 and electrical contacts 16 on the plug 2 and at the socket 3 as well as via a power line 18 , The catch tongue 12 and plugs 2 have switching contacts 13 and thus form the detection means 5 , The switching contacts 13 are via a signal line 17 with the power line 18 connected.
  • To plug 2 and socket 3 must be able to solve mechanically, first on the latching tongue 12 be pressed. The temporal operation of the latching tongue 12 is therefore necessarily a separation of the electrical contacts 16 from plug 2 and socket 3 ahead, like 2 B shows. By pressing the latching tongue 12 become the switching contacts 13 pressed on each other and close the supply circuit 18 short. To avoid a current spike, can be in the signal line 17 serially connected also a resistor. By pressing the latching tongue 12 thus reduces the resistance within the circuit 18 , This change is made by a control circuit 11 measured, which is connected to the power supply and turns off the power. There is then no or a low voltage on the power contacts 16 on and between the contacts 16 no electricity flows. When the plug 2 is completely pulled out and the power contacts 16 Consequently, no break-off spark is formed.
  • Another embodiment of the device show the 3a and 3b in which a RJ45 socket 3 with detection means 5 and plugged in 2 shown in vertical section. This is from two contacts 13 formed detection means on the socket 3 arranged. The power line 18 via the power contacts 16 , Since it is a representation in cross section, is only a current contact pair 16 for a vein 14 visible, although a total of eight wires are present. In the fully inserted condition, as in 3a shown, the two contacts 13 of the recognition agent 5 pressed on each other and thus close a signal circuit 17 , Will the plug 2 partly pulled out, as in 3b shown, then the signal circuit 17 interrupted, because the switching contact 13 is elastically resetting.
  • The operation of the switch 5 That is, the change in resistance in the switching circuit 17 is from a (not shown) control circuit 11 measured and the supply current in the supply circuit 18 is switched off. When the plug 2 is completely pulled out, therefore there is no voltage on the power contacts 16 why it does not lead to the formation of tearing sparks.
  • 4 schematically shows the basic structure of another embodiment of the circuit arrangement of the device. In contrast to 1 is a protection circuit 20 intended.
  • The circuit arrangement has as a detection means a switch 5 on when releasing plug 2 and socket 3 (not shown) is advanced. The desk 5 is with a control circuit 11 connected to the switching state of the scarf ters 5 measures, for example, about its resistance. The control circuit 11 is again with a power supply unit 6 connected. Will the switch 5 then the control circuit switches 11 the power supply power supply 6 in the current output of the power supply 6 applied voltage is reduced or switched off. Thereby, as in the embodiments described above, sparking upon disconnection of electrically conductive contacts (not shown, see FIGS 2a to 3b ) avoided.
  • However, the circuit arrangement has an additional feature with an additional advantage. With the power supply 6 is also a protection circuit 20 connected. The protection circuit 20 measures the internal resistance 19 a connected PD or consumer and controls depending on the power supply 6 delivered tension. If no consumer is connected, then the protection circuit regulates 20 For safety reasons, the voltage of the power supply 6 down. Such a protection circuit 20 is state of the art. The disadvantage, however, is that the control process of the protection circuit 20 can reduce the "bandwidth" or the data transmission rate, because during the measurement the data transmission has to be interrupted for a short time.
  • To solve this additional problem is the control circuit 11 with the protection circuit 20 connected. The control circuit 11 is due to the switching state of the recognition means 5 "Known", whether already has a network connection between devices 9 . 10 (not shown, see 1 ) is made. If a connection is already established, the function of the protection circuit 20 no longer needed. The control circuit 11 therefore switches the unnecessary protection circuit 20 from. As a result, there are no interruptions in the data transmission by the protection circuit 20 and the transmission rate is increased.
  • 1
    A plug connector
    2
    plug
    3
    Rifle
    4
    connection cable
    5
    recognition means
    6
    power adapter
    7
    Data Interface
    8th
    consumer
    9
    power company PSE
    10
    electricity consumers PD
    11
    control circuit
    12
    catch tongue
    13
    switching contact
    14
    Vein
    15
    locking lug
    16
    current contacts
    17
    signal line
    18
    power line
    19
    internal resistance
    20
    protection circuit
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited non-patent literature
    • - IEC-60603-7 [0002]

Claims (9)

  1. Device for a network connection, in which not only data but also a supply current can be transmitted, with at least one plug connection part ( 1 ), characterized in that the connector part ( 1 ) a recognition means ( 5 ), which is arranged to release the connection ( 2 . 3 ) and a leading signal for switching the power supply ( 6 ), so that at power contacts ( 16 ) no break-off spark is formed.
  2. Device according to claim 1, characterized in that the recognition means ( 5 ) in the supplying circuit ( 18 ) is arranged to switch it.
  3. Device according to Claim 1 or Claim 2, characterized in that the recognition means ( 5 ) with a circuit arrangement ( 11 ) connected to the supplying circuit or a power supply unit ( 6 ), in particular a power supply unit, is connected in a controlled manner.
  4. Device according to one of the preceding claims, characterized in that the recognition means ( 5 ) as a leading electrical contact of the connector part ( 1 ) is trained.
  5. Device according to one of the preceding claims, characterized in that the recognition means ( 5 ) is designed as a mechanical switch, in particular micro-switch, or as an optical switch.
  6. Device according to one of the preceding claims, characterized in that the plug connection part ( 5 ) as RJ45 plug ( 2 ) or as an RJ45 socket ( 3 ) is trained.
  7. Device according to one of the preceding claims, characterized in that the recognition means ( 5 ), in particular a microswitch, with a latching tongue ( 12 ) of the plug ( 2 ) mechanically connected or even as a latching tongue ( 12 ) is formed in order to press the latching tongue ( 12 ) to deliver a leading signal.
  8. Device according to one of the preceding claims, characterized in that the recognition means ( 5 ), in particular a microswitch, to a socket ( 3 ) is arranged.
  9. Device according to one of the preceding claims, characterized in that the recognition means ( 5 ) has a contact strip or movable circuit board, which provides a leading signal when releasing the connection.
DE200810052857 2008-10-23 2008-10-23 Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium Withdrawn DE102008052857A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200810052857 DE102008052857A1 (en) 2008-10-23 2008-10-23 Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810052857 DE102008052857A1 (en) 2008-10-23 2008-10-23 Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium

Publications (1)

Publication Number Publication Date
DE102008052857A1 true DE102008052857A1 (en) 2010-04-29

Family

ID=42055005

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200810052857 Withdrawn DE102008052857A1 (en) 2008-10-23 2008-10-23 Device for network connection for transferring data and supply current, has plug connecting unit with detecting medium, where release of connections is detected by detected medium

Country Status (1)

Country Link
DE (1) DE102008052857A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012054345A1 (en) * 2010-10-22 2012-04-26 Adc Telecommunications, Inc. Contact set arrangement for right angle jack
US8715012B2 (en) 2011-04-15 2014-05-06 Adc Telecommunications, Inc. Managed electrical connectivity systems
US9093796B2 (en) 2012-07-06 2015-07-28 Adc Telecommunications, Inc. Managed electrical connectivity systems
US9203198B2 (en) 2012-09-28 2015-12-01 Commscope Technologies Llc Low profile faceplate having managed connectivity
WO2019034448A1 (en) * 2017-08-15 2019-02-21 Würth Elektronik eiSos Gmbh & Co. KG Electrical plug connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEC-60603-7

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103283095B (en) * 2010-10-22 2016-03-16 Adc电信公司 Means a group of right angle socket contacts
US8480438B2 (en) 2010-10-22 2013-07-09 Adc Telecommunications, Inc. Contact set arrangement for right angle jack
CN103283095A (en) * 2010-10-22 2013-09-04 Adc电信公司 Contact set arrangement for right angle jack
US8795003B2 (en) 2010-10-22 2014-08-05 Adc Telecommunications, Inc. Contact set arrangement for right angle jack
WO2012054345A1 (en) * 2010-10-22 2012-04-26 Adc Telecommunications, Inc. Contact set arrangement for right angle jack
US8715012B2 (en) 2011-04-15 2014-05-06 Adc Telecommunications, Inc. Managed electrical connectivity systems
US8944856B2 (en) 2011-04-15 2015-02-03 Adc Telecommunications, Inc. Managed electrical connectivity systems
US9147983B2 (en) 2011-04-15 2015-09-29 Adc Telecommunications, Inc. Managed electrical connectivity systems
US9093796B2 (en) 2012-07-06 2015-07-28 Adc Telecommunications, Inc. Managed electrical connectivity systems
US9437990B2 (en) 2012-07-06 2016-09-06 Commscope Technologies Llc Managed electrical connectivity systems
US9203198B2 (en) 2012-09-28 2015-12-01 Commscope Technologies Llc Low profile faceplate having managed connectivity
US9525255B2 (en) 2012-09-28 2016-12-20 Commscope Technologies Llc Low profile faceplate having managed connectivity
WO2019034448A1 (en) * 2017-08-15 2019-02-21 Würth Elektronik eiSos Gmbh & Co. KG Electrical plug connector

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Legal Events

Date Code Title Description
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20130501