EP1950848A1 - Appareil de connexion - Google Patents

Appareil de connexion Download PDF

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Publication number
EP1950848A1
EP1950848A1 EP07001467A EP07001467A EP1950848A1 EP 1950848 A1 EP1950848 A1 EP 1950848A1 EP 07001467 A EP07001467 A EP 07001467A EP 07001467 A EP07001467 A EP 07001467A EP 1950848 A1 EP1950848 A1 EP 1950848A1
Authority
EP
European Patent Office
Prior art keywords
high voltage
voltage impulse
connection apparatus
slot
pins
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
Application number
EP07001467A
Other languages
German (de)
English (en)
Other versions
EP1950848B1 (fr
Inventor
Chien-Hsiang Huang
Muh-Jin Uang
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.)
Giga Byte Technology Co Ltd
Original Assignee
Giga Byte Technology Co Ltd
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 Giga Byte Technology Co Ltd filed Critical Giga Byte Technology Co Ltd
Priority to ES07001467T priority Critical patent/ES2324497T3/es
Priority to DE602007000726T priority patent/DE602007000726D1/de
Priority to AT07001467T priority patent/ATE426262T1/de
Priority to EP07001467A priority patent/EP1950848B1/fr
Publication of EP1950848A1 publication Critical patent/EP1950848A1/fr
Application granted granted Critical
Publication of EP1950848B1 publication Critical patent/EP1950848B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6658—Structural association with built-in electrical component with built-in electronic circuit on printed circuit board
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • H01F2019/085—Transformer for galvanic isolation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64—Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45

Definitions

  • the invention relates to a connection apparatus, and more particularly to a connection apparatus with high voltage impulse protection.
  • Transient overvoltages may be due to any one of several factors. For example, lightning, electrostatic discharge, or malfunctioning equipment at a remote end of the cable may be responsible.
  • Fig. 1 is a schematic diagram of a conventional network connector.
  • the network connector 100 provides high voltage impulse protection (also referred to as lightening or surge protection) between signal lines by transient voltage suppressor (TVS) diodes 10A ⁇ 10D and provides high voltage impulse protection between signal lines and a ground terminal by coupling resistors R1 ⁇ R4 and a capacitor CH to the pins TX+, TX-, RX+ and RX-.
  • TVS transient voltage suppressor
  • the described method has the following disadvantages.
  • Energy caused the high voltage impulse may discharge to other components as the resistors have a large volume.
  • the volume of the resistors must be sufficiently large.
  • isolation glue must be coated on the printed circuit board, reducing yield and increasing time-to-market.
  • the currents through the each resistor may also be different due to resistance error in the resistors, such that the resistor with a relative smaller resistance may bear a larger current and thus be damaged.
  • Total cost increases with the total number of resistors used.
  • the resistors may age due to lightening. Additionally, there is no lightening protection for the secondary coils (TL3 and TL4), and thus, interference with the core of the system by lightening is not preventable.
  • Typical integrated circuits are not capable of sustaining high voltage and although the primary coils (TL1 and TL2) isolate most discharged energy, a voltage of several tens of volts is still induced in the secondary coils and the motherboard may be damaged accordingly.
  • An exemplary embodiment of a connection apparatus comprises at least one isolation transformer comprising a primary coil and a secondary coil. Each primary coil and secondary coil comprises a first end, a second end and a tap.
  • a high voltage impulse protector is disposed between the primary coil of the isolation transformer and a ground terminal for discharging an overcurrent caused by a high voltage to the ground terminal by point discharge when a high voltage impulse event occurs.
  • connection apparatus comprises a socket with a slot disposed on a circuit board.
  • the slot comprises a plurality of pins and a high voltage impulse protector is disposed between the pins of the slot and a ground terminal for discharging an overcurrent caused by a high voltage to the ground terminal by point discharge when a high voltage impulse event occurs.
  • An exemplary embodiment of a high voltage impulse protection method for a connection apparatus comprises a slot disposed on a circuit board, in which the slot has a plurality of pins.
  • a high voltage impulse protector is disposed between the pins of the slot and a ground terminal to discharge overcurrent generated by a high voltage impulse to the ground terminal by point discharge when a high voltage impulse event occurs.
  • Fig. 1 is a schematic diagram of a conventional network connector
  • Fig. 2 shows an embodiment of a connection apparatus
  • Fig. 3 is a diagram illustrating high voltage impulse protector and a slot in the connection apparatus
  • Fig. 4 is another diagram illustrating the high voltage impulse protector and the slot in the connection apparatus
  • Fig. 5 is a diagram illustrating a isolation transformer and a transient voltage suppression unit in the connection apparatus
  • Fig. 6 shows another embodiment of a connection apparatus
  • Fig. 7 is a diagram showing the connection apparatus shown in Fig. 6 ;
  • Figs. 8A and 8B show another embodiment of a connection apparatus.
  • the surrounding air may be dissociated to generate gas discharge, known as point discharge, when electric field strength increases acutely.
  • the invention utilizes point discharge to discharge energy from high voltage impulse on all pins (connected to the primary coil) to the ground terminal by a capacitor when a high voltage impulse event occurs.
  • Fig. 2 shows an embodiment of a connection apparatus.
  • a connection apparatus 200 comprises a slot 22, two isolation transformers 24A and 24B, a high voltage impulse protector 26 and two transient voltage suppression units 28A and 28B.
  • the connection apparatus 200 can be a network connector but is not limited thereto.
  • the slot 22 is coupled between an external network cable (not shown) and the isolation transformers 24A and 24B and comprises a plurality of pins TX+, TX-, RX+ and RX-.
  • the slot 22 can be disposed on a circuit board 29 (shown in Fig. 3 ) by dual-in-line package (DIP) technology.
  • DIP dual-in-line package
  • the isolation transformers 24A and 24B both comprise a primary coil and a secondary coil, in which the primary coil and the secondary coil each has a first end, a second end and a tap.
  • the primary coils of the isolation transformers 24A and 24B are coupled to the slot 22 respectively, and the secondary coils of the isolation transformers 24A and 24B are coupled to an external processing circuit (not shown), such as a processing circuit on a local area network (LAN) card or a motherboard, through the connection terminals TD+, TD-, RD+ and RD-.
  • LAN local area network
  • the first and second ends of the primary coil in the isolation transformer 24A are coupled to the pins TX+ and TX-, and the first and second ends of the primary coil in the isolation transformer 24B are coupled to the pins RX+ and RX-.
  • the high voltage impulse protector 26 is disposed between the primary coils of the isolation transformers 24A and 24B and a ground terminal to discharge overcurrent generated by a high voltage impulse the ground terminal by point discharge when a high voltage impulse event occurs.
  • the high voltage impulse protector 26 can be a conductive layer CM with a plurality of tips TP aligning with pins of the slot 22 respectively.
  • the conductive layer CM does not connect to the pins of the slot 22 directly and provides high voltage impulse protection between signal lines and the ground terminal by point discharge only when a high voltage impulse event occurs.
  • the high voltage impulse protector 26 and all pins of the slot 22 are not electrically connected, i.e., they are open-circuit.
  • the high voltage impulse protector 26 and the pins of the slot 22 are electrically coupled by point discharge only when a high voltage impulse event occurs.
  • the conductive layer CM has a plurality of tips TP separated from pins PN of the slot 22 by a small gap gp, such that the tips TP do not electrically connect directly to the pins PN of the slot 22. Because point discharge is a non-contact design, signals on the pins PN are not affected by aging of the high voltage impulse protector 26 and other elements of the conventional connector can also be prevented.
  • Energy induced by high voltage impulse is discharged to the tips TP by the pins PN connected to the primary coil, electric energy is converted to luminous energy for 0.5-10ns, and after partial decay, is discharged to the ground terminal by the capacitor.
  • the high voltage impulse protector 26 discharges an overcurrent caused by a high voltage on the pins RX+, RX-, TX- and TX+ to the ground terminal by point discharge when a high voltage impulse event occurs.
  • the isolation transformers 24A and 24B and other circuits coupled thereto are protected, against high voltage impulse events.
  • the high voltage impulse protector 26 can further comprise a capacitor CH coupled between the conductive layer CM and the ground terminal, buffering energy generated by the high voltage impulse event and extending discharge time such that the generated energy can be decayed and discharged to the ground terminal.
  • the conductive layer CM can be a metal layer, such as a copper (Cu) layer but it is not limited thereto.
  • the conductive layer CM shown in Fig. 4 is disposed in the circuit board 29 such that the routing on the circuit board 29 can be simplified, but it is also can be disposed on the top surface TS or bottom surface BS of the circuit board 29.
  • the pins of the slot 22 can be connected to the circuit board 29 by plugs when the slot 22 is disposed on the circuit board 29 by surface mount device (SMD) technology.
  • SMD surface mount device
  • the tips of the high voltage impulse protector 26 can be aligned with the plugs respectively but are not electrically connected directly, thus, high voltage impulse protection is provided between signal lines and the ground terminal by point discharge only when a high voltage impulse event occurs.
  • transient voltage suppression units 28A is disposed between the taps of the primary coils in the isolation transformer 24A and 24B and the transient voltage suppression units 28B is disposed between the taps of the secondary coils in the isolation transformer 24A and 24B, performing a high voltage impulse protection between signal lines.
  • transient voltage suppression units 28A and 28B can serve as a voltage-current limiting element for clamping the voltage and the current, or both, induced at the primary coil, or the secondary coils of the isolation transformer 24A and 24B.
  • the transient voltage suppression units 28A and 28B can comprise series-connected or parallel-connected transient voltage suppressor (TVS) diodes, polydiodes, surge absorbers, varistors, zener diodes or combinations thereof but are not limited thereto.
  • TVS transient voltage suppressor
  • Fig. 5 shows a diagram illustrating the isolation transformers and the transient voltage suppression units.
  • the primary coil of the isolation transformer 24A comprises a winding TL1 coupled to the pin TX+, a winding TL2 coupled to the pin TX-, and a tap TPT1 coupled to the transient voltage suppression unit 28A.
  • the primary coil of the isolation transformer 24B comprises a winding RL1 coupled to the pin RX+, a winding RL2 coupled to the pin RX-, and a tap RPT1 coupled to the transient voltage suppression unit 28A.
  • the secondary coil of the isolation transformer 24A comprises a winding TL3 coupled to the pin TD+, a winding TL4 coupled to the pin TD-, and a tap TPT2 coupled to the transient voltage suppression unit 28B.
  • the secondary coil of the isolation transformer 24B comprises a winding RL3 coupled to the pin RD+, a winding RL4 coupled to the pin RD-, and a tap RPT2 coupled to the transient voltage suppression unit 28B.
  • the transient voltage suppression unit 28A and 28B can be transient voltage suppressor (TVS) diodes but it is not limited thereto.
  • the taps are typically at zero-voltage under normal operation, such that signals on the pins TX+, RX+, RX-, TX-, TD+, RD+, RD- and TD- are not affected by the stray capacitors of the transient voltage suppression units 28A and 28B coupled to the taps.
  • the induced currents at the secondary coil can be clamped by the transient voltage suppression unit 28B coupled to the taps TPT2 and TPR2, such that the branch currents on the windings TL3, TL4, RL3 and RL4 can be limited, forming a second-stage high voltage impulse protection.
  • the transient voltage suppression units 28A and 28B still can limit branch current on each winding or clamp the voltage difference between two taps even if currents or voltages on the pins may be different, such that the circuit board can be protected from the high voltage impulse event.
  • connection apparatus of the invention has the following advantages.
  • the discharge path does not couple to signals on the pins, thus, isolation glue is not required, and routing of the circuit board can be simplified. Particularly, because there is no capacitor and resistor coupled to the signals on the pins directly, i.e., the discharge path does not couple signals on the pins, signal decay does not occur.
  • the connection apparatus can be applied to all high speed network standards without affecting their transmission.
  • each transient voltage impulse suppression unit is disposed between two taps, each transient voltage impulse suppression unit can protect four signal lines and transient voltage impulse suppression units disposed at the secondary coil further provide second-stage protection for a mother board against high voltage impulse events.
  • Fig. 6 shows another embodiment of a connection apparatus.
  • a connection apparatus 300 comprises a plug 32 and a socket 34.
  • Fig. 7 is another diagram of the connection apparatus shown in Fig. 6 .
  • the connection apparatus 300 can be a network connector but is not limited thereto.
  • the plug 32 is coupled to the socket 34 through a cable 36, and the socket 34 comprises the high voltage impulse protector 26 and the slot 22 shown in Fig. 2 .
  • the high voltage impulse protector 26 is disposed between the primary coils of the isolation transformers 24A and 24B and a ground terminal to discharge overcurrent generated by a high voltage to the ground terminal by point discharge when a high voltage impulse event occurs.
  • the high voltage impulse protector 26 can be a conductive layer CM with a plurality of tips TP aligning with pins of the slot 22 respectively. Operations of the high voltage impulse protector 26 are similar to those described with reference to Figs. 2 ⁇ 4 , thus, further description thereof is omitted for brevity.
  • a connection apparatus 400 comprises a slot 22 and a plug 32, a circuit board (not shown) in a housing 42, in which the circuit board comprises the high voltage impulse protector 26 shown in Fig. 2 .
  • the slot 22, the plug 32 and the high voltage impulse protection 26 are electrically coupled by the circuit board, and the high voltage impulse protection 26 is disposed between the pins of the slot 22 and the ground terminal, discharging overcurrent generated by high voltage to the ground terminal by point discharge when a high voltage impulse event occurs.
  • the high voltage impulse protector 26 comprises a conductive layer CM with a plurality of tips TP aligning with pins of the slot 22 and a capacitor CH coupled between the conductive layer CM and the ground terminal. Operations of the high voltage impulse protector 26 are similar to those described with reference to Figs. 2 ⁇ 4 , thus, further description thereof is omitted for brevity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Transformers For Measuring Instruments (AREA)
EP07001467A 2007-01-24 2007-01-24 Appareil de connexion Not-in-force EP1950848B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES07001467T ES2324497T3 (es) 2007-01-24 2007-01-24 Aparato de conexion.
DE602007000726T DE602007000726D1 (de) 2007-01-24 2007-01-24 Anschlussgerät
AT07001467T ATE426262T1 (de) 2007-01-24 2007-01-24 Anschlussgerat
EP07001467A EP1950848B1 (fr) 2007-01-24 2007-01-24 Appareil de connexion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07001467A EP1950848B1 (fr) 2007-01-24 2007-01-24 Appareil de connexion

Publications (2)

Publication Number Publication Date
EP1950848A1 true EP1950848A1 (fr) 2008-07-30
EP1950848B1 EP1950848B1 (fr) 2009-03-18

Family

ID=37983471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07001467A Not-in-force EP1950848B1 (fr) 2007-01-24 2007-01-24 Appareil de connexion

Country Status (4)

Country Link
EP (1) EP1950848B1 (fr)
AT (1) ATE426262T1 (fr)
DE (1) DE602007000726D1 (fr)
ES (1) ES2324497T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2194616A2 (fr) * 2008-12-02 2010-06-09 Moxa Inc. Dispositif de connecteur RJ45 doté d'une structure à clé pour changer les définitions de broche
EP2490307A3 (fr) * 2011-02-18 2014-03-19 ASUS Technology Pte Ltd. Composant de protection contre les surtensions dans un connecteur
US20220102046A1 (en) * 2020-09-27 2022-03-31 Optomedia Technology Inc. Signal converter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020001160A1 (en) * 2000-04-20 2002-01-03 Reinhold Berberich Overvoltage protection device
US6541878B1 (en) * 2000-07-19 2003-04-01 Cisco Technology, Inc. Integrated RJ-45 magnetics with phantom power provision
US20040027779A1 (en) * 2002-08-09 2004-02-12 Byrne Daniel J. Electrostatic discharge protection
US20050164558A1 (en) * 2002-04-10 2005-07-28 Ferentz Alon Z. Active local area network connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020001160A1 (en) * 2000-04-20 2002-01-03 Reinhold Berberich Overvoltage protection device
US6541878B1 (en) * 2000-07-19 2003-04-01 Cisco Technology, Inc. Integrated RJ-45 magnetics with phantom power provision
US20050164558A1 (en) * 2002-04-10 2005-07-28 Ferentz Alon Z. Active local area network connector
US20040027779A1 (en) * 2002-08-09 2004-02-12 Byrne Daniel J. Electrostatic discharge protection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2194616A2 (fr) * 2008-12-02 2010-06-09 Moxa Inc. Dispositif de connecteur RJ45 doté d'une structure à clé pour changer les définitions de broche
EP2194616A3 (fr) * 2008-12-02 2011-05-18 Moxa Inc. Dispositif de connecteur RJ45 doté d'une structure à clé pour changer les définitions de broche
EP2490307A3 (fr) * 2011-02-18 2014-03-19 ASUS Technology Pte Ltd. Composant de protection contre les surtensions dans un connecteur
US20220102046A1 (en) * 2020-09-27 2022-03-31 Optomedia Technology Inc. Signal converter
US11600420B2 (en) * 2020-09-27 2023-03-07 Optomedia Technology Inc. Signal converter

Also Published As

Publication number Publication date
DE602007000726D1 (de) 2009-04-30
ES2324497T3 (es) 2009-08-07
ATE426262T1 (de) 2009-04-15
EP1950848B1 (fr) 2009-03-18

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