EP1821369B1 - Leiterplatten-Steckfortsatz - Google Patents

Leiterplatten-Steckfortsatz Download PDF

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Publication number
EP1821369B1
EP1821369B1 EP07003208.1A EP07003208A EP1821369B1 EP 1821369 B1 EP1821369 B1 EP 1821369B1 EP 07003208 A EP07003208 A EP 07003208A EP 1821369 B1 EP1821369 B1 EP 1821369B1
Authority
EP
European Patent Office
Prior art keywords
contacts
circuit board
plug
board connector
extension according
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.)
Active
Application number
EP07003208.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1821369A3 (de
EP1821369A2 (de
Inventor
Marc Lindkamp
Gert Havermann
Andreas Kohler
Dieter Rose
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.)
Harting Electronics GmbH and Co KG
Original Assignee
Harting Electronics 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 Harting Electronics GmbH and Co KG filed Critical Harting Electronics GmbH and Co KG
Publication of EP1821369A2 publication Critical patent/EP1821369A2/de
Publication of EP1821369A3 publication Critical patent/EP1821369A3/de
Application granted granted Critical
Publication of EP1821369B1 publication Critical patent/EP1821369B1/de
Active 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
    • 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
    • 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
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only
    • 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
    • Y10S439/951—PCB having detailed leading edge

Definitions

  • the invention relates generally to the field of connecting a printed circuit board to another printed circuit board, usually a so-called backplane.
  • the invention particularly relates to a printed circuit board plug-in extension according to the preamble of claim 1.
  • Such a printed circuit board plug-in extension is from the US-A-4,687,267 known.
  • the object of the invention is to provide a printed circuit board plug-in extension, which requires little space and can be plugged into a conventional card edge plug part. This object is achieved with the features of the characterizing part of claim 1.
  • the body consists of two partial areas and has a stepped shape, wherein the two partial areas are integrally stirred together, that the terminal ends of the two groups of contacts are arranged on one and the same side of the body, while the mating ends of the first group are arranged on a different side of the body than the mating ends of the second group, and that the contacts are guided by means of an approximately right-angled transition portion from the first portion to the second portion, the contacts of the first group always remain on the same side of the body while the contacts of the second group pass through the subarea once.
  • the solution according to the invention is based on the basic idea of "copying" the area of the printed circuit board, which serves to make contact with the printed conductors, to the printed circuit board plug-in extension, but at the same time improving it.
  • a plastic part can, in contrast to a printed circuit board, be manufactured with an accuracy of a few hundredths of a millimeter. In this way, the scatter of the insertion forces can be reduced when inserting the plug-in extension in the associated connector part.
  • the plug-in extension can be manufactured with dimensions that lie at the lower end of the permissible tolerance field. In this way, there is a further reduction of the insertion forces.
  • the area of the plug-in extension which serves for contacting is in the same plane as the printed circuit board.
  • the circuit board can therefore be guided and plugged in the conventional manner.
  • the contacts of the plug-in extension are only connected from one side to the circuit board, while the plug ends are on both sides of the plug-in extension, resulting in very small dimensions.
  • the transition portion of the contacts can be used advantageously for fastening the contacts themselves and for suitable biasing of the mating ends.
  • the mating ends of the contacts are bent for this purpose not exactly perpendicular to the transition section, but depending on the arrangement at an angle slightly larger or smaller than 90 °. Only by the final insertion of the transition section in the correct position, the contacts are then bent at an angle of 90 ° to the transition section, the resulting elastic bias can be used to suitably press the plug ends in a recording associated with them.
  • the body has at least one positioning projection, which can be positively inserted into a receptacle of the printed circuit board, to position the plug-in extension.
  • This makes it possible to mount the printed circuit board insertion extension precisely aligned with the printed circuit board, which is of particular importance when several printed circuit boards are combined to form a group.
  • the positioning projection is a cylindrical pin. Such a pin can be easily inserted into a hole in the circuit board.
  • the body is provided between the contacts of a group with openings that allow a free punching of the contacts.
  • This allows the contacts that must be passed through the body of the plug-in extension to punch so that they are initially connected by a bridge of material. This facilitates handling. Only after mounting on the body of the plug-in extension, the material bridges are removed by a suitable tool dips into the openings of the body. Then the contacts are separated.
  • the plug ends of the contacts terminate at different levels. This ensures that not all spring contacts of the plug part, in which the plug-in extension is inserted, are deflected simultaneously, but gradually. In this way, the insertion force is reduced.
  • incisions are provided in front of the plug ends which terminate in a level lying further back in the plugging direction.
  • the notches serve to guide the spring contacts of the plug part to the plug ends of the contacts located further back. The guide prevents the spring contacts from accidentally sliding on adjacent contacts.
  • the leadership of the spring contacts will be further improved if oblique Ein Sciencefasen are provided at the front end of the incisions.
  • air pockets are provided between the contacts and the body.
  • the air pockets make it possible to adjust the impedance of the contacts in the desired manner.
  • more air pockets can be provided at the front end of the plug ends, in front of the area in which attack the spring contacts of the plug part.
  • the transition section is designed with a reduced width, so that latching hooks can be formed approximately with the width of the contacts.
  • the reduction in the width of the transition sections makes it possible to bend the contacts in this area with less force.
  • the latching hooks determine with their dimensions how closely juxtaposed the contacts can be punched out of a material web. If the snap hooks are formed in a region of reduced width, the contacts can ultimately be punched out closer together.
  • the terminal ends of the ground contacts are at a level that seen from the plug ends behind this level
  • the terminal ends of the signal contacts are that behind the terminal ends of the signal contacts, the terminal ends of the ground contacts of the second group of contacts and that behind it are the terminal ends of the signal contacts of the second group.
  • the ground contacts of the two groups of contacts thus serve to shield between the signal contacts of the two groups, which improves the crosstalk attenuation.
  • spacers are arranged between the plug-in extensions, which are inserted laterally into the plug-in extensions, and that in each case a dowel pin extends through the spacers and the lateral regions of the plug-in extensions.
  • the spacers make it possible to mount several printed circuit boards and the associated printed circuit board insertion extensions into assemblies so that several printed circuit boards can be simultaneously inserted into the corresponding backplane connector parts.
  • the spacers are integrally formed on the plug-in extensions.
  • Each spacer is provided with a retaining pin and two positioning holes. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.
  • the invention also relates to an assembly with two or more plug-in extensions.
  • the printed circuit board push-in extension 10 is intended to be mounted on the edge of a printed circuit board so that a part of the printed circuit board plug-in extension projects away from the printed circuit board.
  • a Terminal area 12 is provided, opposite to a plug-in area 14, which is intended to be plugged into a connector to connect the circuit board.
  • the connection region 12 is formed on a first subregion 16 of the printed circuit board push-in extension 10, and the insertion region 14 is formed on a second subregion 18 (see in particular FIG. 5 ).
  • the two portions 16, 18 are generally rectangular in shape and overlap each other in the middle of the printed circuit board plug-in extension 10.
  • the printed circuit board plug-in extension 10 thus has, viewed from the side, a stepped shape.
  • the two sections 16, 18 are integrally formed with each other and made of plastic, which can be molded with very high precision, in particular injection-molded.
  • the plug-in area 14 on the second portion 18 is designed in the manner of a wide, generally rectangular tongue, with two constrictions 20 are provided laterally. These can serve to lock the PCB plug-in extension 10 and thus also the printed circuit board attached thereto to a connector. In the region of the constrictions 20, the contacts are inward.
  • the first portion 16 is designed with a slightly greater thickness than the second portion 18 and has at its lateral edges in each case a positioning Vorspung 22 in the form of a cylindrical pin.
  • the positioning tab 22 is used to hold the PCB tab extension 10 in a precisely defined position on a circuit board. In the vicinity of the positioning projections 22, the first portion 16 has a total of three openings 24, the task of which will be described later.
  • the printed circuit board push-in extension is equipped with two groups of contacts, which extend from the connection region 12 to the insertion region 14.
  • a first group of contacts 26 extend with a mating end 28 along the second portion 18, then as a transition portion 30 on the first portion 16 and then as a terminal end 32 away from the first portion 16.
  • a second group of contacts 27 extends with a mating end 28 along the side of the second portion 18, which faces away from the mating ends 28 of the contacts 26 of the first group, then by means of a transition portion 30 on the underside of the first portion 16 and then by means of a bent terminal end 32 through the first portion 16 through the connection area 12.
  • the contacts 26 of the first group differ from the contacts 27th
  • the second group thus essentially in that the contacts 26 of the first group always remain on the same side of the body 16, 18 of the PCB plug-in extension 10, based on the illustration of FIG. 6
  • the contacts 27 of the second group pass through the portion 16 once.
  • the mating ends 28 of the contacts 27 of the second group on the underside of the PCB plug-in extension, while the terminal ends 32 are located on the top.
  • the contacts of a group whose terminal ends 32 are closest to the transition sections 30, are used as ground contacts. These ground contacts are in the FIGS. 6 and 11 marked with M. Such an arrangement results in the remaining terminal ends 32 of the first group contacts 26 being separated from the mating area by the terminal ends 32 of the contacts 26 and the terminal ends 32 of the grounding conductors of the second group contacts 27 as signal conductors used connection ends.
  • the contacts 26 of the first group can be easily placed on the body 16, 18 after punching, for example by using their terminal ends 32 for transport. With respect to the contacts 27 of the second group, this is somewhat more difficult, since the terminal ends 32 of the contacts 27 must be inserted through the first portion 16 therethrough. For this reason, it is provided for the handling of the contacts 27 that they are still connected by punching material bridges. It must then only a single entity consisting of a variety still integrally interconnected contacts handled. Only after the attachment of the contacts 27 on the PCB plug-in extension 10, the material bridges are removed. For this purpose, small punched openings 56 are provided in the second partial area 18, into which a punching tool can dip when it removes the material bridges provided between these contacts 27 at these locations.
  • the plug-in portion 14 is chamfered at its foremost end.
  • the plug-in region 14 has a chamfer 34 on its upper side and its underside.
  • the chamfer 34 causes the spring contacts of the connector, in which the printed circuit board plug-in extension 10 is inserted, are slowly deflected when plugging in to the outside.
  • the mating ends 28 of the contacts terminate at different staggered levels.
  • the contacts terminate at different levels, with four levels I to IV as shown here.
  • the contacts starting at the first level I are preferably used as mass contacts M.
  • recesses 36 are provided which, in the case of two adjacent contacts starting at the same level, are separated by a partition wall 38.
  • a chamfer 34 is provided at the rear end of each incision 36.
  • the mating ends 28 of the contacts 26, 27 are in suitable receptacles 42 of the second body 18. Below the plug ends 28 a plurality of air pockets 44 are provided in the exceptions 42 (see in particular the FIGS. 7 and 10 ).
  • the air pockets serve on the one hand for impedance matching. On the other hand, they are advantageous for the correctly aligned, planar arrangement of the plug-in ends 28 in the receptacles 42; it is easier to partially support the plug-in ends 28 than to have to create a continuous, flat bearing surface.
  • the pockets 44 may be arranged in front of the area in which the spring contacts of the connector abut against the contacts when the printed circuit board push-in extension 10 is fully inserted into the connector; this area is in FIG. 10 indicated by B.
  • each contact 26, 27 has two latching hooks 46 formed on opposite sides of the transition section 30. These snap hooks are also in the FIGS. 12 and 13 to see. How very good in FIG. 13 can be seen, the latching hooks 46 are arranged by adjacent contacts of a group at different levels. The different height arrangement of the latching hooks on the one hand has the advantage that higher anchoring forces in the body of the printed circuit board plug-in extension 10th result. It is available for the transfer of holding forces more material available, if not at the same height the latching hook of the adjacent contact must be retained.
  • the contacts 27 of the second group have two latching hooks 48 on opposite sides of the connection end 32, respectively.
  • the attachment of the contacts 26, 27 at the portions 16, 18 of the printed circuit board insertion extension 10 is effected substantially by means of a groove 50 which is formed at the transition from the first portion 16 to the second portion 18 on the side of the terminal portion 12 (see in particular FIGS. 6 . 14 and 15 ).
  • the grooves 50 In the grooves 50, the transition portions 30 of the contacts 26 of the first group and the contacts 27 of the second group are accommodated.
  • the groove 50 has a trapezoidal shape, which in FIG. 16 is drawn. Due to the trapezoidal shape, the groove narrows towards the outside, so that the transition section 30 of the contacts 26, 27 is held towards the partial region 16 or 18.
  • each groove 50 On its upper side, from which the transition sections are inserted into the groove, each groove 50 has an insertion section 52, which is designed as a concave groove. The bottom of the channel is located laterally next to the groove 50 and has its lowest point approximately at the point at which the transition section 30 should be located after insertion.
  • the mating ends 28 of the contacts 26, 27 are designed so that the angle ⁇ (see FIG. 6 ) between the mating ends 28 and the transition sections 30 at the contacts 27 of the second group is slightly greater than 90 °, while the angle ⁇ between the mating ends 28 and the transition sections 30 of the contacts 26 of the first group is slightly smaller than 90 °. Then, when the transition portions 30 in the direction of the arrows P of FIG. 6 be pressed, the angle ⁇ is bent to 90 °, while the angle ⁇ is compressed to 90 °. In both cases, the mating ends 28 are resiliently acted upon in the receptacle 42 provided for them in the first body 18, where they remain without further action.
  • the contacts 26, 27 With the arrangement of the contacts 26, 27 shown, in particular, a very close arrangement of the contacts can be achieved.
  • the contacts are arranged in a pitch of 0.75 mm. From this it can be seen how little space between the contacts is available for anchoring them.
  • the printed circuit board plug-in extension 10 equipped with the contacts 26, 27 can be placed on the edge of a printed circuit board 60 (see FIGS FIGS. 18 and 19 ), wherein the terminal ends 32 of the contacts 26, 27 are connected to corresponding tracks of the circuit board 60.
  • the terminal ends 32 can either be soldered, soldered or pressed.
  • the additional latching hooks 48 of the contacts 27 of the second group ensure that the terminal ends 32 of these contacts are not pushed out of the first portion 16; the terminal ends 32 of the contacts 26 are supported without further measures reliably on the first portion 16 from.
  • this is provided with suitable holes into which the positioning projections 22 can engage.
  • the printed circuit board 60 can then be plugged with the PCB plug-in extension 10 in a card edge connector 70, which is arranged here on another circuit board 72, for example, a backplane.
  • a card edge connector 70 which is arranged here on another circuit board 72, for example, a backplane.
  • the use of the printed circuit board push-in extension 10 has the particular advantage that its plug-in region 14 can be designed with much higher accuracy than the edge region of a printed circuit board. Consequently For example, the contact forces that occur when inserting the board tab extension 10 into the card edge connector 70 can be much better controlled.
  • FIG. 20 an assembly is shown, which consists of four interconnected circuit boards 60 here.
  • each spacer 80 see, in particular FIG. 24 ), which have two retaining pins 82 on opposite sides.
  • a positioning opening 84 extends centrally through each spacer 80. The position of the retaining pins 82 and the positioning opening 84 corresponds to the arrangement of the openings 24 on the printed circuit board push-in extension 10.
  • the retaining pins 82 of the spacers 80 are inserted into the outer openings 24 of the printed circuit board tab extensions 60 arranged on the printed circuit boards 60. Then, a dowel pin 86 (see FIG. 23) is pushed through the positioning hole 84 of the spacers 80 and through the center hole 24 of the board tab extensions 10. In this way, all components are precisely aligned relative to each other, so that the assembly of the plurality of printed circuit boards 60 can be inserted into closely adjacent card edge connector 70, which are arranged on another circuit board 72, for example, a backplane.
  • the precise positioning of the PCB tab extensions 10 on the circuit boards 60 as well as their precise alignment with each other via the spacers 80 is particularly important because some of the circuit boards 60 are usually guided in a (not shown) guide so that they correctly into the card edge connector 70 can be inserted. If some of the PCB tab extensions 10 are not positioned correctly, alignment errors will result. For example, the circuit boards 60 could be fan-shaped rotated against each other. In this case, it is hardly possible to correctly guide the circuit boards by means of the guides provided so that the printed circuit board tab extensions 10 meet in their associated connector.
  • FIG. 25 an alternative embodiment is shown, in which the spacers 80 'are integrally formed on the plug-in extensions 10.
  • Each spacer 80 is provided with a retaining pin 82 and two positioning holes 84. This one-piece design reduces the manufacturing and assembly costs and also the tolerances occurring.
  • FIGS. 26 to 29 is shown a plug-in extension according to an alternative embodiment, which differs from that in the FIGS. 1 to 5 shown insertion extension differs in that was dispensed with the lateral constrictions. It is therefore not necessary to let the contacts dodge inwards. Instead, all contacts can be made straightforward.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Combinations Of Printed Boards (AREA)
EP07003208.1A 2006-02-21 2007-02-15 Leiterplatten-Steckfortsatz Active EP1821369B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006008015A DE102006008015B3 (de) 2006-02-21 2006-02-21 Leiterplatten-Steckfortsatz

Publications (3)

Publication Number Publication Date
EP1821369A2 EP1821369A2 (de) 2007-08-22
EP1821369A3 EP1821369A3 (de) 2008-07-16
EP1821369B1 true EP1821369B1 (de) 2014-05-21

Family

ID=37887306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003208.1A Active EP1821369B1 (de) 2006-02-21 2007-02-15 Leiterplatten-Steckfortsatz

Country Status (6)

Country Link
US (1) US7645146B2 (zh)
EP (1) EP1821369B1 (zh)
JP (1) JP4589350B2 (zh)
CN (1) CN100570957C (zh)
CA (1) CA2577574C (zh)
DE (1) DE102006008015B3 (zh)

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US7108520B1 (en) * 2005-05-06 2006-09-19 Molex Incorporated Board mounted electrical connector
JP4223525B2 (ja) 2005-10-27 2009-02-12 山一電機株式会社 プラグコネクタ

Also Published As

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CN100570957C (zh) 2009-12-16
JP4589350B2 (ja) 2010-12-01
DE102006008015B3 (de) 2007-04-12
CA2577574A1 (en) 2007-08-21
US20070197088A1 (en) 2007-08-23
CA2577574C (en) 2009-10-13
JP2007227379A (ja) 2007-09-06
EP1821369A3 (de) 2008-07-16
CN101026271A (zh) 2007-08-29
US7645146B2 (en) 2010-01-12
EP1821369A2 (de) 2007-08-22

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