EP0735624B1 - Connecteur électrique - Google Patents

Connecteur électrique Download PDF

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Publication number
EP0735624B1
EP0735624B1 EP96103555A EP96103555A EP0735624B1 EP 0735624 B1 EP0735624 B1 EP 0735624B1 EP 96103555 A EP96103555 A EP 96103555A EP 96103555 A EP96103555 A EP 96103555A EP 0735624 B1 EP0735624 B1 EP 0735624B1
Authority
EP
European Patent Office
Prior art keywords
contact
electrical connector
circuit board
devices
connection
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 - Lifetime
Application number
EP96103555A
Other languages
German (de)
English (en)
Other versions
EP0735624A2 (fr
EP0735624A3 (fr
Inventor
Jacques Longueville
Peter Pagnin
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.)
TE Connectivity Solutions GmbH
Original Assignee
Tyco Electronics Logistics AG
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 Tyco Electronics Logistics AG filed Critical Tyco Electronics Logistics AG
Publication of EP0735624A2 publication Critical patent/EP0735624A2/fr
Publication of EP0735624A3 publication Critical patent/EP0735624A3/fr
Application granted granted Critical
Publication of EP0735624B1 publication Critical patent/EP0735624B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/931—Conductive coating

Definitions

  • the invention relates to an electrical connector according to the Preamble of claims 1.
  • the electrical Connector reflection, impedance and crosstalk properties have a distortion even for the highest frequencies and enable interference-free transmission.
  • EP 0 486 298 A1 describes a connector arrangement known, in which between signal contacts by one half pitch offset ground contacts are arranged, so that the signal contacts in the plugged state of ground contacts are surrounded.
  • This solution is also not ideal in that than the individual contacts for grounding all individually in the circuit boards need to be contacted and the unbundling which makes the signals considerably more difficult.
  • US-A-4 904 197 discloses an electrical connector in which the Connection devices in a multi-part insulating material housing are cast, the one contacting devices free of protrude from the exit surface of the insulating material housing, so that in this Area there is an increased risk of crosstalk.
  • the present invention is therefore based on the object an electrical connector according to the preamble of the claim 1 in such a way that distortions and / or interference in signal transmission on simple Ways can be reduced significantly and reliably.
  • the connecting devices in Channels that run between the Continuous contacting devices run are formed from a material that Contains metal.
  • the interference and distortion caused by reflections can be used when using the electrical Eliminate connector completely.
  • the electrical connector according to the invention thus enables that usually occur in signal transmission Distortions and / or disturbances in a simple way and can be reliably reduced significantly.
  • Figure 1 shows a schematic cross-sectional view of a Embodiment of the electrical connector according to the invention in the connection state.
  • the electrical connector 1 shown in Figure 1 is used in described embodiment as a circuit board connector element for connecting the surface of a backplane circuit board 2 and the surface of an assembly circuit board 3, the module circuit board 3 in the connected state with the interposition of the electrical connector 1 on the Surface of the backplane circuit board 2 is attached.
  • the electrical connector 1 is symmetrical when connected around a contacting section of the assembly circuit board 3 laid.
  • Each of the symmetrical halves (upper and lower halves according to FIG. 1) has a layered structure or sandwich construction.
  • One symmetrical half i.e. the upper according to Figure 1 Half consists of one in the center of the electrical connector 1 lying bottom 11a, an outside lid Cover parts 12a, 12b and one between the bottom and the Lid lying middle piece from middle piece parts 13a, 13b.
  • the other symmetrical half i.e. the lower according to Figure 1 Half consists of one in the center of the electrical connector 1 lying bottom 11b, an outside lid Cover parts 12c, 12d and one between the bottom and the Lid lying middle piece from middle piece parts 13c, 13d.
  • the covers point to the backplane circuit board when it is connected 2 facing recesses 18a, 18b on which serve the housing of the electrical connector 1 via spring elements 19a, 19b or the like with a To connect the ground connection of the backplane circuit board.
  • the middle piece parts 13a, 13b, 13c, 13d have in this embodiment both on the cover parts 12a, 12b, 12c, 12d side as well as on their bottom 11a, 11b facing side any number of labyrinthine Cutouts to form channels 14.
  • Connection devices 15 for electrical contacting and connection of backplane and assembly circuit board.
  • Figure 1 there are a total of four channels with four connecting devices 15 shown.
  • the inner two according to Figure 1 Channels and connecting devices are not exactly over or under the channels and connecting devices located outside according to FIG. 1. Rather, Figure 1 shows how the offset arrangement of the channels shown in Figure 2 and connecting devices can be seen, one by different Flat sectional view.
  • the channels 14 run with the connecting devices 15 initially essentially in the view shown in FIG perpendicularly away from the rear wall circuit board 2 and kink then in the direction of the assembly circuit board 3.
  • FIG. 2A shows a sectional view of the upper one according to FIG symmetrical half of the electrical connector from one in the figure 1 by an arrow A direction.
  • FIG. 2A it can be clearly seen how through the stacking the bottom 11a, the middle piece part 13a and Cover part 12a in the assembled connector corresponding to the labyrinthine recesses of the middle piece 13a Channels 14 for guiding the connecting devices 15 are formed.
  • the channels formed in that under or on a middle piece, in which the channels correspond exactly to the channels a bottom and a lid are provided, whose surfaces facing the center piece are flat are.
  • Figures 2B and 2C show two corresponding to Figure 2A Views, but only part of the lid and the section of the center piece adjacent to this is shown are.
  • both the middle piece part 13a and the cover part 12a on the sides facing each other Provide recesses.
  • the Middle piece part and the cover part are put together so that respective recesses in the two parts one above the other come to rest.
  • the possibility of channel formation shown in FIG. 2B has the advantage that the middle piece with the same Stability of the same can be made thinner can or with the same thickness formed more stable can be and moreover because of the less deep recesses is easier to manufacture.
  • the possibility for channel formation shown in FIG. 2C has the advantage that the assembly of the electrical Connector facilitates and increases the precision that can be achieved can be.
  • FIG. 3 shows a sectional view of the electrical connector from an arrow B indicated in FIG Direction, the cutting plane being along the top of the Connection devices 15 shown in Figure 1 runs.
  • connection devices 15 is in the channels 14 by providing those not shown everywhere in FIGS. 1 and 3, but provided for each connecting device two guide lugs 16a, 16b and a bracket 17 fixed.
  • the bracket 17 ensures that the connecting device 15 at its right end according to FIGS. 1 and 3 is rigidly fixed or clamped in channel 14.
  • connection device 15 here as an elastic spring element is formed, allow the connection devices 15 on her left according to Figures 1 and 3 End when not connected to the backplane 2 of the electrical connector by about 1 mm the connector 1 are pushed out while as from Figures 1 and 3 can be seen in the rear wall circuit board 2 connected state of the electrical connector be pushed back into this.
  • connection device 15 a substantially frontally the backplane circuit board acting pressure force, what, how will be described in more detail later, a not inconsiderable one Importance for the reliability of the to be accomplished Has contacting.
  • the guide lugs 16a, 16b and the holder 17 are each sprayed onto the connecting devices 15.
  • the connecting devices 15 are used for an electrical Connection between contacting devices of the rear wall and of the assembly circuit board. Accordingly on the one hand, the connecting devices are good electrical ones Conductors, and on the other hand, they are at their ends as contacting devices with one electrical contact each enabling contact surface.
  • the backplane circuit board 2 as contacting devices 21a and 21b on their surface, which for the purpose an improved contact are preferably gold-plated.
  • the contact pads 21a are contacting devices for the transmission or exchange of useful signals, whereas the contact pads 21b contacting devices for Grounding the cover parts 12a and 12c and thus for grounding the entire connector housing.
  • the electrical connection is also made at the same time between the cover of the electrical connector and the as Ground connection serving pads 21b of the backplane circuit board.
  • the backplane circuit board 2 has guide and as an aid Stiffening walls 22, which are preferably made of metal are made.
  • These guide and stiffening walls 22 have the one hand Function, the electrical connector 1 when applying to guide the backplane circuit board so that the as contacting devices serving ends of the connecting devices 15 of the electrical connector exactly on the as contacting devices the backplane circuit board serving Contact pads 21a or - in the connected state - maintain this position and precisely on this an elastic Apply pressure.
  • the backplane circuit board can be around the pads 21a, 21b have wall-shaped elevations, not shown in the figures. These bumps are made of dielectric material, preferably made by spraying plastic and serve the contact surfaces of the contacting devices of the electrical connector exactly on the contact surfaces of the contacting devices of the backplane circuit board lead and precisely defined in this by the survey Keep position or rest position permanently. So that can even when using inaccurately manufactured printed circuit boards and / or electrical connectors always a safe electrical Contact will be obtained.
  • the electrical connector 1 is before the connection is made not yet fully assembled between the circuit boards. Those facing the assembly circuit board Cover parts 12b, 12d and the corresponding center piece parts 13b, 13d have not yet been installed at this time.
  • the intended for connection to the circuit board 2 Contacting devices of the electrical connector 1 are to be used as contacting devices of the assembly circuit board serving solder joints 31 soldered.
  • the Soldering takes place in the present embodiment according to the SMT processes.
  • connection can are caused by the fact that they are in each other and on the assembly circuit board 3 are pressed.
  • the type of contact described has decisive advantages compared to conventional contacts.
  • the contacting described here takes place entirely without joints, which is the case with conventional electrical Connect by the provided in the connection path direction Contact overlap of knife and spring contacts and through pressing the knife and spring contact strips into the Printed circuit boards are formed.
  • the contact overlap regularly provided in the prior art is avoided according to the present invention or at least reduced to a negligible extent.
  • Avoiding the contact overlap causes the elimination a joint at which the signals to be transmitted in conventional electrical connectors were reflected.
  • Another significant advantage of the one described above electrical connector is that the connecting devices over the entire distance from the backplane circuit board to the assembly circuit board in all directions closed channels.
  • connection devices 15 a material for the housing parts of the electrical Connector, i.e. for floors, centerpieces and lids a metal or metal-coated materials or metal containing materials such as metallized Plastics, i.e. Plastics with metal inclusions, and if you connect them - as happened - with mass, so will the connection devices 15 similar to a coaxial line guided in shielded tunnels.
  • connection devices in channels with grounded Walls containing metal also open one easy way on the impedance of the electrical connector To influence.
  • a predefined impedance value can namely be simple can be set by a precise distance between the connecting device and at least one side wall of the channel is set.
  • the signal transmission is carried out by improper impedance or impedance fluctuations Interference and / or distortion reduced to a minimum.
  • the contacting devices of the electrical connector and contacted the assembly circuit board by soldering instead of soldering, however, one can essentially be Connection between the electrical connector and the backplane circuit board appropriate connection are used.
  • the connecting device would have to be provided of the electrical connector also on the assembly circuit board facing side as a resilient element form, which when inserting the electrical connector deflected into the connection state from its rest position is and in the connection state a pressure force on the contact point the assembly circuit board exercises.
  • FIG. 4 shows a view corresponding to FIG. 1, wherein however only the modified contact area in question between the electrical connector and the assembly circuit board is shown.
  • Figure 4 shows the state of connection between the electrical Connector 1 and the assembly circuit board 3. In this state is the connecting device from the in the Figure rest position indicated by dashed lines deflected and exerts a pressure force on the assembly circuit board out.
  • the connecting device 15 protrudes the surface of the assembly circuit board 3 facing the electrical connector.
  • the connecting device 15 against its spring force in the channel 14 pushed back.
  • the movement taking place relative to the walls of the canal the connecting device is advantageously so designed that the distance between the connecting device 15 and the impedance-determining wall of the channel remains constant.
  • FIGS. 5A and 5B are from the direction of that in FIG. 4 arrows shown sectional views. of the electrical Connector.
  • FIG. 5A shows the electrical connector in the module circuit board not connected condition.
  • Figure 5B shows the electrical connector in the with the assembly circuit board connected state.
  • the connecting device takes 15 different in the respective states Positions within the channel.
  • these different positions are chosen so that the distance of the connecting device 15 from the impedance-determining Wall of the channel, which in the present embodiment the left wall according to Figures 5A and 5B of the channel when changing the positions of the connecting device constant within the channel (in the exemplary embodiment shown remains constant equal to v).
  • Such a defined movement of the connecting device within the channel has the advantage that even if the connecting device as a result of not being processed exactly identically Contacting devices when inserting in the Connection status varies within the channel is always moved exactly for all connecting devices the desired impedance can be obtained. About that In addition, one can be extremely simple and even before installation desired impedance value of the electrical connector is set become.
  • the previous embodiments of the electrical connector always referred to the transmission of asymmetrical signals, i.e. on the transmission of the signals via an inner conductor in the form of the connecting device and an outer conductor in the form of the electrically conductive channel walls.
  • the electrical connector according to the invention can also be designed for the transmission of symmetrical signals.
  • the case would be two parallel inner conductors in the form of a channel provided by two parallel connecting devices.
  • Another advantageous development of the invention relates modification of the connection of the electrical connector with mass.
  • Figures 6A and 6B show different embodiments the contact strip in the idle state or in the connection-free state State, whereas FIG. 6C shows that shown in FIG. 6B Contact strips in one to be contacted between two Surface clamped state shows.
  • the embodiments of the contact strip according to the figures 6A and 6B have in common that they are wavy in high density Have deformations with resilient properties, which in compressed state striving to get back into their Return to rest position.
  • Another modification of the invention relates to generation the contact surfaces to be contacted in the connected state each pressing force.
  • the electrical connector described is due to the most extensive Elimination of reflections, crosstalk, and attenuation caused interference and / or distortion fully HF-compatible and yet extremely simple and cheap can be manufactured and assembled.

Landscapes

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

Claims (14)

  1. Connecteur électrique (1), comprenant
    des dispositifs de contact destinés à établir un contact électrique avec des dispositifs de contact (21a, 21b,31) de raccordements externes,
    des surfaces de contact agencées sur les dispositifs de contact du connecteur électrique (1) ayant une configuration permettant une connexion essentiellement sans chevauchement avec les surfaces de contact des dispositifs de contact (21a, 21b, 31) des raccordements externes et
    servant à la connexion électrique de dispositifs de contact correspondants du connecteur électrique (1) avec des dispositifs de connexion (15), caractérisé en ce que les dispositifs de connexion (15) sont guidés dans des canaux (14), s'étendant dans l'état connecté du connecteur électrique (1) d'un dispositif de contact vers l'autre, les parois des canaux (14) étant composées d'un matériau comprenant du métal.
  2. Connecteur électrique selon la revendication 1, caractérisé en ce que celui-ci constitue un connecteur de cartes de circuits en vue de la connexion électrique d'une première et d'une deuxième carte de circuits (2, 3).
  3. Connecteur électrique selon la revendication 2, caractérisé en ce qu'il est configuré de sorte à pouvoir être inséré de manière pratiquement perpendiculaire sur la face supérieure ou la face inférieure de la première et/ou de la deuxième carte de circuits (2, 3).
  4. Connecteur électrique selon les revendications 2 ou 3, caractérisé en ce qu'il est configuré de sorte à pouvoir être inséré de manière pratiquement parallèle à la face supérieure et/ou la face inférieure de la première et/ou de la deuxième carte de circuits (2, 3).
  5. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que les surfaces de contact des dispositifs de contact du connecteur électrique (1) ont une configuration telle que leur extension dans une première direction est supérieure à leur extension dans une deuxième direction, la première direction étant une direction perpendiculaire au sens d'écoulement du courant prédominant par rapport à la région des surfaces de contact et à son environnement, la deuxième direction étant une direction parallèle au sens d'écoulement du courant prédominant dans la région des surfaces de contact et de son environnement.
  6. Connecteur électrique selon la revendication 5, caractérisé en ce que les surfaces de contact des dispositifs de contact du connecteur électrique (1) ont une configuration permettant l'établissement d'un contact de grande surface sous forme d'une section de surface pratiquement plane ou courbée.
  7. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que les surfaces de contact des dispositifs de contact du connecteur électrique (1) sont reliées à des éléments élastiques, déviés dans l'état connecté de leur position de repos et entraínant ainsi l'application d'une force de pression des surfaces de contact des dispositifs de contact du connecteur électrique aux surfaces de contact des dispositifs de contact (21a, 21b, 31) des raccordements externes.
  8. Connecteur électrique selon la revendication 7, caractérisé en ce que la force de pression exercée par chaque surface de contact des dispositifs de contact du connecteur électrique (1) est une force repoussant les surfaces de contact du dispositif de contact (21a, 21b, 31) du raccordement externe respectif du connecteur électrique.
  9. Connecteur électrique selon les revendications 7 ou 8, caractérisé en ce que la force de pression de chaque surface de contact des dispositifs de contact du connecteur électrique (1) repoussant les surfaces de contact des dispositifs de contact (21a, 21b, 31) de raccordements externes correspondants du connecteur électrique (1), pratiquement dans la même direction.
  10. Connecteur électrique selon l'une des revendications 2 à 9, caractérisé en ce que les dispositifs de contact (21a, 21b, 31) des raccordements externes sont pour l'essentiel constitués par des points de contact sur la surfacé de la première et/ou de la deuxième carte de circuits (2, 3).
  11. Connecteur électrique selon l'une des revendications 1 à 10, caractérisé en ce que les parois des canaux (14) sont reliées électriquement à la terre.
  12. Connecteur électrique selon l'une des revendications 1 à 11, caractérisé en ce qu'il comporte des pattes de guidage (16a, 16b) assurant la fixation mobile des sections correspondantes des dispositifs de connexion (15) dans les canaux (14).
  13. Connecteur électrique selon l'une des revendications 1 à 12, caractérisé en ce qu'il comporte des dispositifs de retenue (17) assurant la fixation rigide des sections correspondantes des dispositifs de connexion (15) dans les canaux (14).
  14. Connecteur électrique selon les revendications 12 ou 13, caractérisé en ce que les dispositifs de connexion (15) sont fixés dans les canaux (14) de sorte que lors du déplacement du dispositif de connexion (15) entraíné par la mise dans l'état connecté du connecteur électrique (1), leur distance par rapport à une paroi de détermination de l'impédance du canal (14) reste constante.
EP96103555A 1995-03-29 1996-03-06 Connecteur électrique Expired - Lifetime EP0735624B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511507 1995-03-29
DE19511507A DE19511507A1 (de) 1995-03-29 1995-03-29 Elektrischer Verbinder

Publications (3)

Publication Number Publication Date
EP0735624A2 EP0735624A2 (fr) 1996-10-02
EP0735624A3 EP0735624A3 (fr) 1998-04-22
EP0735624B1 true EP0735624B1 (fr) 2003-05-21

Family

ID=7758046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103555A Expired - Lifetime EP0735624B1 (fr) 1995-03-29 1996-03-06 Connecteur électrique

Country Status (5)

Country Link
US (2) US5785534A (fr)
EP (1) EP0735624B1 (fr)
JP (1) JP3025430B2 (fr)
AT (1) ATE241220T1 (fr)
DE (2) DE19511507A1 (fr)

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Also Published As

Publication number Publication date
US5785534A (en) 1998-07-28
JP3025430B2 (ja) 2000-03-27
ATE241220T1 (de) 2003-06-15
JPH08273763A (ja) 1996-10-18
DE59610448D1 (de) 2003-06-26
DE19511507A1 (de) 1996-10-02
EP0735624A2 (fr) 1996-10-02
US6012927A (en) 2000-01-11
EP0735624A3 (fr) 1998-04-22

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