EP3888198A1 - Connecteur enfichable - Google Patents

Connecteur enfichable

Info

Publication number
EP3888198A1
EP3888198A1 EP19805710.1A EP19805710A EP3888198A1 EP 3888198 A1 EP3888198 A1 EP 3888198A1 EP 19805710 A EP19805710 A EP 19805710A EP 3888198 A1 EP3888198 A1 EP 3888198A1
Authority
EP
European Patent Office
Prior art keywords
connector
conductor
section
elements
individual
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.)
Pending
Application number
EP19805710.1A
Other languages
German (de)
English (en)
Inventor
Sebastian STAMM
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3888198A1 publication Critical patent/EP3888198A1/fr
Pending legal-status Critical Current

Links

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
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • 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
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6464—Means for preventing cross-talk by adding capacitive elements
    • H01R13/6466—Means for preventing cross-talk by adding capacitive elements on substrates, e.g. printed circuit boards [PCB]
    • 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
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
    • 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 connector for connecting a data line device, with a connector housing, with one or more connecting elements for connecting one wire of the data line, with one or more contact elements and with one or more conductor elements, each of which has a connecting element with a Contact element is electrically connected.
  • Connectors for connecting a data line to an electrical device for example a communication device, a computer or a controller are known from practice in different versions.
  • the data line is simply connected to the electrical device in that the data line is connected to the connector and the connector is connected to a corresponding mating connector on the electrical device.
  • the connector connected to the data line is usually designed as a plug, while the mating connector formed on the electrical device's then forms out as a socket.
  • RJ45 plugs and RJ45 sockets are often used as connectors, which are used to connect multi-core, in particular 8-core, data lines.
  • a connector then has eight connection elements for connecting the eight individual wires of the data line, with cut contacts generally being provided as connection elements.
  • the individual connection elements are electrically conductively connected within the connector housing via corresponding conductor elements, each with a contact element.
  • the individual wires of the data line can also be connected to the connection elements of the plug connector or soldered to them using Pierce connection technology or crimp connection technology.
  • the contact elements serve for the electrical connection with corresponding mating contact elements in the mating connector, for which purpose the contact elements are accessible from an end face of the connector housing.
  • the plug connector is also possible for connecting a data line which has only one wire.
  • a data line which has only one wire.
  • a Chen data line can be, for example, an antenna cable or a coaxial cable.
  • the connector then has to have only one connection element, one conductor element and one contact element.
  • the connector can inadvertently change the signals to be transmitted.
  • the behavior of a connector with regard to signal transmission is described by its transmission properties.
  • An important transmission property is the backflow damping, which is sometimes also referred to as backscatter damping.
  • the return loss is a measure of the reflection, i.e. the ratio of reflected power to transmitted power, usually given as a logarithmic measure in decibels (dB).
  • dB decibels
  • the wave resistances are defined or standardized for different transmission technologies.
  • the shaft resistance is 100 ohms. Therefore, as a rule, all components in such a network, such as, in particular, plug connectors, are designed or adapted to this characteristic impedance, which is referred to as the nominal characteristic impedance.
  • a circuit board for a connector which has additional conductor track sections to adjust the overall wave resistance of the circuit board, which form an additional inductive or capacitive component, whereby the wave resistance can be increased or decreased in this loading .
  • This tries to adapt the total wave resistance via the circuit board to the required nominal wave resistance or to adapt the impedance curve within the connector to the nominal wave resistance if possible after each deviation.
  • the additional conductor track structures require additional space within the connector, which limits the size of the compensation measure.
  • the inductive or capacitive components realized by the additional conductor track structures themselves represent additional joints, which reduce their compensation effect by reflections occurring at these joints.
  • the additional conductor track structures must adhere to very narrow tolerance limits so that the desired compensation effect actually occurs, which is associated with the corresponding manufacturing outlay.
  • the present invention is therefore based on the object of specifying a measure that is as simple as possible and yet effective, how undesired reflections can be reduced in a fastener, so that the requirements changes to the return loss of the connector can be observed.
  • the connector is provided for connecting a data line with only one wire, so that the connector also has only a connection element, a contact element and a conductor element, then at least a section of the conductor element or at least a section of the contact element is specifically mismatched with regard to its wave resistance.
  • the data line has a plurality of wires and, corresponding to the plug connector, also a plurality of connection elements, contact elements and conductor elements.
  • the connector according to the invention is intended, for example, for use in EDV networks in which the nominal characteristic impedance is 100 ohms, at least a section of the individual conductor elements or a section of the individual contact elements is designed and arranged such that the value of the characteristic impedance of the section deviates from 100 ohms. If, for example, capacitors are provided in the connector to ensure the necessary transmission properties, this leads to a reduction in the wave resistance in this area. In such a Chen case would then be designed according to the present invention from at least a section of the individual conductor elements so that its wave impedance is correspondingly greater than 100 ohms in order to compensate for the reduction in the wave resistance by the capacitors if possible.
  • At least a section of the individual conductor elements would be adapted such that the wave resistance in the section was correspondingly less than 100 ohms is. It has previously been stated that at least a section of the individual conductor elements or at least a section of the individual contact elements is designed and arranged such that the characteristic impedance of the section is specifically mismatched. The targeted mismatch can thus be implemented both in the area of the individual conductor elements and in the area of the contact elements.
  • the width and / or the thickness of the conductor element or of the contact element can preferably be enlarged or reduced at least in the section, in each case in relation to the width or thickness of a corresponding conductor element or contact element with nominal wave resistance.
  • the distance between the sections of two conductor elements or two contact elements can be increased or reduced accordingly, in relation to the distance between two conductor elements or two contact elements with nominal wave resistance.
  • the characteristic impedance of a coupled microstrip line is, for example, dependent on the conductor width w and the conductor thickness t of the individual microstrip lines.
  • a reduction in the conductor width w leads, like a reduction in the conductor thickness t, to an increase in the wave resistance, although the influence of the conductor width w is greater. Accordingly, increasing the conductor width w and increasing the conductor thickness t each result in a reduction in the wave resistance of the strip line.
  • the characteristic impedance of a coupled microstrip line also depends on the distance s between the two lines. A reduction in the distance s leads to a reduction in the wave resistance, while an increase in the distance s leads to an increase in the wave resistance.
  • At least one printed circuit board is provided in the plug housing of the connector, which has a plurality of conductor tracks as conductor elements.
  • the printed circuit board can be both a rigid printed circuit board and one or more flexible printed circuit boards arranged one above the other.
  • at least one section of the individual conductor tracks is then advantageously mismatched in a targeted manner.
  • the section can either comprise only a part of the respective conductor track or the entire conductor track can also be specifically mismatched over its entire length, for example the width w of the conductor track can be chosen to be smaller than in the case of an adaptation to the nominal waves resistance would be the case.
  • the targeted mismatching of the wave resistance of the conductor track can then also be achieved in that the distance of the section to the ground surface is increased or decreased in relation to the distance of the section to the ground plane of a corresponding one, at least in one section of the conductor track Conductor with nominal characteristic impedance.
  • a reduction in the distance to the ground surface leads to a reduction in the wave resistance, while an increase in the distance also results in a greater wave resistance.
  • the targeted mismatching of a section of individual conductor tracks on a circuit board is intended to compensate for the mismatching of the wave resistance in another area of the circuit board that is unavoidable due to other restrictions. It preferably follows a targeted mismatch of at least a section of all conductor tracks of the printed circuit board. Regardless of this, however, it is also conceivable that a specific mismatching is carried out only in the case of individual conductor tracks, in particular if the impedance profile does not deviate or deviates only slightly from the nominal characteristic impedance over the entire length of the connector in the case of other conductor tracks.
  • the individual conductor tracks have a reduced width and / or an increased distance h to the ground surface of the printed circuit board at least in one section exhibit. Both measures result in the wave resistance of the section being increased, so that the reduction in wave resistance caused by the capacitors can be at least partially compensated for.
  • An increase in the distance of the section of a conductor track to the ground surface can be realized, for example, in a simple manner that the ground surface in the region of the desired section of the conductor track has corresponding recesses or recesses, which increases the distance between the conductor track and the ground surface can be.
  • the person skilled in the art can create a targeted mismatch of a section of the conductor track by a corresponding combination of the measures described above and, depending on the possibilities given with a printed circuit board, ie increase the characteristic impedance of the conductor track in this section, as a result of which overall the return loss the entire conductor track and thus the connector can be improved.
  • An alternative or additional measure to increase the wave resistance of the section of two adjacent conductor tracks is to increase the distance from the sections of the two adjacent conductor tracks.
  • An increase in the distance s by, for example, 20% leads to an increase in the wave resistance by approximately 5%.
  • the geometric parameters of the conductor tracks can be specifically changed individually or in combination in order to achieve the desired mismatch in the wave resistance, that is to say a wave resistance deviating from the nominal wave resistance to reach.
  • a further possibility of reducing the wave resistance of two conductor tracks by means of a targeted mismatch is that the distance s between the sections of two adjacent conductor tracks is reduced from one another. A reduction of the distance s by 30% leads to a reduction in the wave resistance by approximately 10%.
  • This measure can also be implemented either alone or together with the measures described above, depending on the size of the desired mismatch and which geometry parameters of the conductor track are the easiest to change in the specific case.
  • Fig. 1 is a perspective view of a connector
  • Fig. 2 shows the connector of FIG. 1 in an exploded view
  • Fig. 3 shows a first embodiment of a circuit board of a connector with an enlarged detail view
  • Fig. 4 shows a second embodiment of a circuit board of a connector with an enlarged detailed view.
  • FIGS. 1 and 2 show an exemplary embodiment of a connector 1 according to the invention, which in the present case is designed as an RJ45 connector that can be assembled in the field.
  • Fig. 1 shows the connector 1 in the assembled state - but without a data line connected to the connector 1 -
  • Fig. 2 shows an exploded view of the connector 1.
  • the connector 1 has a two-part housing 2 with a Ge housing upper part 2a and a lower housing part 2b.
  • a total of eight connection elements 3, which are embodied here as cut contacts, and eight contact elements 4 are arranged within the housing 2, one connection element 3 each being electrically conductively connected to a contact element 4 via a conductor element 5.
  • the contact elements 4 are arranged and designed to correspond to corresponding mating contact elements of a socket (not shown here) into which the plug connector 1 designed as a plug can be inserted.
  • the connector 1 In the connector 1 according to the invention, at least one section 6 of the individual conductor elements 5 is designed and arranged such that the characteristic impedance of section 6 is specifically mismatched. This means that the value of the characteristic impedance in section 6 deviates from the nominal characteristic impedance of the data line that is to be connected to connector 1.
  • the nominal characteristic impedance is usually 100 ohms, so that the corresponding Sections 6 of the individual conductor elements 5 each have a characteristic impedance that is greater or less than 100 ohms.
  • the connecting elements 3 and the contact elements 4 are arranged on a printed circuit board 7 which has a plurality of conductor tracks 8 as conductor elements 5.
  • the printed circuit board 7 shown in FIG. 2 is a multilayer printed circuit board which has a total of four layers or layers, only the top layer of the printed circuit board 7 being visible in FIG. 2.
  • FIGS. 3 and 4 show two different exemplary embodiments of the top layer of the printed circuit board 7 shown in FIG. 2, one as an overall representation and one as an enlarged detail representation.
  • the individual layers of the printed circuit board 7 each have a ground surface 9 which is arranged below the conductor tracks 8 and by the corresponding base material of the printed circuit board 7 is separated from the conductor tracks 8.
  • the individual conductor tracks 8 can be characterized in particular by their geometry parameters, which are changed in section 6 for the targeted mismatching of the wave resistance.
  • the width w of the two conductor tracks 8 is reduced in section 6, in relation to the width of a corresponding conductor track with nominal characteristic impedance.
  • the wave resistance of the section 6 of the conductor tracks 8 is greater than the nominal wave resistance, ie in the present case greater than 100 ohms.
  • the distance h of the sections 6 of the two conductor tracks 8 to the ground surface 9 is increased, for which purpose a corresponding recess 10 is formed in the ground surface 9.
  • the increase in the distance h of the sections 6 to the ground surface 9 leads to an enlargement of the wave resistance of the sections 6 of the conductor tracks 8, so that the two conductor tracks 8 each have a wave resistance in the area of their sections 6 by the two measures described above for example approx. 15% to 20% above the nominal characteristic impedance.
  • the wave resistance of the sections 6 of the conductor tracks 8 is also increased, in comparison to the nominal wave resistance. 4
  • the distance s between the two parallel sections 6 of the two conductor tracks 8 is increased compared to an adaptation to the nominal characteristic impedance.
  • this measure can be implemented together with a reduction in the width w of the two conductor tracks 8 in section 6 or, alternatively, can be implemented for the measures shown in FIG. 3. In principle, it is also possible to combine all measures with one another.
  • Another way to change the characteristic impedance of a section 6 of a conductor 8 is to reduce or increase the thickness t of the conductor 8.
  • a reduction in the thickness t leads to an increase in the wave resistance
  • an increase in the thickness t of the conductor tracks leads to a reduction in the wave resistance.
  • the influence of a change in the thickness t of the conductor track on the wave resistance is less than the influence of a change in the width w of the conductor track.
  • this possibility of deliberately mismatching the wave resistance of a conductor track 8 is generally less suitable and is therefore less easy to implement in practice.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

La présente invention concerne un connecteur enfichable (1) qui sert au branchement d'une ligne de données et qui comprend : un boîtier (2) ; un ou plusieurs éléments de branchement (3) pour le branchement respectif d'une âme de la ligne de données ; un ou plusieurs éléments de contact (4) ; et un ou plusieurs éléments conducteurs (5) par le biais desquels chaque élément de branchement (3) est relié électriquement à un élément de contact (4). Avec le connecteur enfichable selon la présente invention, l'atténuation du reflux du connecteur enfichable (1) est réduite du fait qu'au moins un secteur (6) des différents éléments conducteurs (5) ou au moins un secteur des différents éléments de contact (4) est conçu et disposé de sorte que l'impédance caractéristique du secteur (6) est spécifiquement désadaptée en ce que la valeur de l'impédance caractéristique s'écarte de l'impédance caractéristique nominale de la ligne de données.
EP19805710.1A 2018-11-26 2019-11-25 Connecteur enfichable Pending EP3888198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20185825A BE1026802B1 (de) 2018-11-26 2018-11-26 Steckverbinder
PCT/EP2019/082403 WO2020109223A1 (fr) 2018-11-26 2019-11-25 Connecteur enfichable

Publications (1)

Publication Number Publication Date
EP3888198A1 true EP3888198A1 (fr) 2021-10-06

Family

ID=64606678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19805710.1A Pending EP3888198A1 (fr) 2018-11-26 2019-11-25 Connecteur enfichable

Country Status (5)

Country Link
US (1) US11848521B2 (fr)
EP (1) EP3888198A1 (fr)
CN (1) CN113056846B (fr)
BE (1) BE1026802B1 (fr)
WO (1) WO2020109223A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127543A1 (de) 2022-10-19 2024-04-25 Weidmüller Interface GmbH & Co. KG Steckanordnung und Ethernet-Datensteckverbinder
DE102022132099A1 (de) * 2022-12-02 2024-06-13 Ims Connector Systems Gmbh Elektrischer Steckverbinder

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US20120244752A1 (en) * 2011-03-22 2012-09-27 Panduit Corp. Communication Connector
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Also Published As

Publication number Publication date
CN113056846A (zh) 2021-06-29
US20220029357A1 (en) 2022-01-27
BE1026802B1 (de) 2020-06-25
US11848521B2 (en) 2023-12-19
CN113056846B (zh) 2024-03-29
WO2020109223A1 (fr) 2020-06-04
BE1026802A1 (de) 2020-06-18

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