EP0495778B1 - Filter-steckverbinder - Google Patents

Filter-steckverbinder Download PDF

Info

Publication number
EP0495778B1
EP0495778B1 EP90908488A EP90908488A EP0495778B1 EP 0495778 B1 EP0495778 B1 EP 0495778B1 EP 90908488 A EP90908488 A EP 90908488A EP 90908488 A EP90908488 A EP 90908488A EP 0495778 B1 EP0495778 B1 EP 0495778B1
Authority
EP
European Patent Office
Prior art keywords
plug connector
filter plug
chamber
connector according
ferrite
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
EP90908488A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0495778A1 (de
Inventor
Ernst Liebich
Karl Schneider
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.)
Siemens AG
Original Assignee
Siemens 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
Priority claimed from DE8912173U external-priority patent/DE8912173U1/de
Priority claimed from DE9005597U external-priority patent/DE9005597U1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0495778A1 publication Critical patent/EP0495778A1/de
Application granted granted Critical
Publication of EP0495778B1 publication Critical patent/EP0495778B1/de
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
    • 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
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7195—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with planar filters with openings for contacts

Definitions

  • the invention relates to a filter connector with a strip body made of insulating material, which forms a chamber which is open to the rear. with a number of parallel, arranged in a grid connector pins, which enter the chamber from the rear and exit through the bottom of the chamber to the front of the ledge body, at least some of the connector pins inside the chamber being guided through a bore in a ferrite core arrangement and on the back of the chamber is connected to a capacitive filter element, and to a shield housing which covers the side walls and at least part of the back of the strip body and the chamber, with the recess of the plug pins.
  • the ferrite cores plugged onto certain connector pins, together with lead-through capacitors, which are arranged, for example, in the area of the shield plate, serve to decouple electromagnetic interference.
  • lead-through capacitors which are arranged, for example, in the area of the shield plate.
  • From DE-A-30 16 315 it is also known to fix filter tubes on the connector pins in that the chamber penetrated by the connector pins in the strip body is completely filled with hardenable sealing compound.
  • both methods require laborious manufacturing steps, and in particular the curing of the adhesive or the casting compound is associated with a loss of time in mass production.
  • the filter connector according to GE-A-30 16 315 is provided, on the one hand, the individual capacitors with the individual connector pins via solder connections in at least two levels and on the other hand to connect a common electrode of the capacitor arrangement to a conductive plate and thus to the shield housing.
  • the object of the invention is to design a filter connector of the type mentioned in such a way that it can be produced with as few individual parts as possible and with as few and simple assembly steps as possible, the filter elements in particular being easy to position and fix in the strip body.
  • this object is achieved in that the ferrite core arrangement is held without play in the axial direction of the connector pins by means of plastic spring elements.
  • the ferrite core arrangement By holding the ferrite core arrangement according to the invention via spring elements made of plastic, the ferrite core arrangement, whether it is formed from individual tubes or from a common block, is held and secured in the correct position. For this positioning, the individual ferrite bodies do not need to be glued or embedded in potting compound. This ferrite core arrangement is secured in its final position simply by plugging it onto the connector pins and closing the chamber with the shield plate. At least as many individual spring elements are expediently provided as there are individual ferrite bodies, so that each ferrite body is pressed individually against the bottom of the plug chamber or against the shield housing.
  • the spring elements are arranged in the bottom region of the chamber, so that they pretension the ferrite core arrangement against the shield housing on the rear of the strip body. It is particularly advantageous, however, if the spring elements are integrally formed on the last body, so that the manufacture and assembly of an additional part are omitted.
  • the ferrite core arrangement can be designed as a one-piece, common ferrite block for at least some of the connector pins and can be provided with longitudinal bores in the grid of the connector pins. In this case, it is advisable that separate spring elements are provided in the chamber for each row in front of connector pins. It is thus possible to provide, for example, only one of two rows of connector pins with a ferrite block of correspondingly halved size and to hold it reliably in the chamber.
  • the ferrite bodies are arranged between the bottom of the chamber and a holding strip made of plastic, that the holding strip is formed cylindrical in each case in the grid of the connector pins towards the ferrite bodies Has pegs, each of which form central bushings for the connector pins and are adapted with their outer diameter to the inner diameter of the ferrite bodies plugged onto them, and that the retaining strip presses the individual ferrite bodies against the bottom of the chamber without play by means of elastic sections.
  • the ferrite body is positioned and fastened using an additional plastic retaining strip that is attached in a single operation and simultaneously secures all the filter body of the connector.
  • the individual ferrite bodies therefore do not need to be glued or embedded in potting compound. Nevertheless, they are held centrally on the connector pins, which is ensured by the pins of the retaining strip which engage in the individual ferrite body.
  • the ferrite bodies are also kept free of play, namely they are individually pressed against the bottom of the plug chamber by the elastic retaining strip. To compensate for the dimensional tolerances of the ferrite body, the holding strip can be designed differently.
  • one each resilient tongue is formed, which biases a ferrite body plugged onto the pin in the direction of the bottom of the chamber. If such a resilient tongue is arranged between two ferrite bodies, one tongue rests on two opposite edge regions of the ferrite body, whereby a uniform prestressing of this ferrite body is effected, so that tilting is excluded.
  • the retaining strip itself can be anchored in a suitable manner in the strip body.
  • Snap hooks are preferably integrally formed on the retaining bar, which can be snapped into opposite side walls of the bar body.
  • a capacitive planar filter arrangement for a number of connector pins with a common substrate is arranged between the ferrite core arrangement and the rear of the shield housing and is soldered to the individual connector pins on the one hand and to the shield housing on the other. It is particularly advantageous if the planar filter arrangement rises at least partially in a section of the shield housing from the chamber over the back of the last body and is held with angled holding tabs of the shield housing, the soldered connections between the filter arrangement and the plug pins on the one hand or the Retaining flaps, on the other hand, lie in a common soldering level set apart from the back of the strip body.
  • planar filter arrangement with the common substrate is preferably provided for two or more rows. However, it is expedient to provide a symmetrical structure of the individual elements on the substrate such that each row can be separated and used for single-row assembly. A separating notch is provided in the substrate between the rows of individual elements.
  • the shield housing is expediently via resilient side parts attached, which grip over the side walls of the last body and lock with angled edge sections on the front. At these front edge sections, contact arms can also be cut free and resiliently bent from the front surface of the last body. In this way, the shield housing can be contacted with a mounting plate without additional measures.
  • the filter connector shown in FIGS. 1 to 3 has a strip body 101 made of plastic (shown in detail in FIGS. 4 to 6), which forms a chamber 102 which is open to the rear. This chamber 102 is closed off by a screen housing 103 (shown in detail in FIGS. 7 to 9). Through the chamber 102, connector pins 104 are guided, which enter the chamber via connectors of a planar filter 105 (see FIG. 10) through a cutout 121 of the shield housing 103 and are guided through the bottom 106 of the chamber to the front of the connector, where they are free Plug ends Form 104a for connection to a plug socket.
  • the free plug ends are surrounded by a collar 107 formed on the strip body 101, which also has locking elements 108 for locking on a front plate 110.
  • the connector pins 104 are arranged in a predetermined grid. At the rear, these plug pins are bent approximately at right angles with their sections 104b, as shown in FIG. 1. Due to the symmetrical structure of the connector, the connector pins can be bent either to the right or to the left, depending on which side a cable, not shown, is to be used for.
  • a block-shaped ferrite body 104 is arranged in the chamber 102 and has bores 109a in the grid of the connector pins.
  • the ferrite body 109 is plugged onto the plug pins 104 with these bores.
  • the ferrite body can be divided accordingly and then only plugged onto a row of the connector pins.
  • a plurality of spring elements 111 are integrally formed, for example molded, on the strip body 1 in the bottom region of the chamber 102, which act symmetrically on the ferrite block and pretension it towards the rear of the strip body against the shield housing.
  • the spring elements 111 each run laterally from the center region of the strip body next to a row of plug pins and have at their free ends each an extension 112 running towards the plug pins (see FIG. 4).
  • a total of four spring elements 111 are provided, two next to each row of pins. If only one row of pins is to be fitted with a ferrite body, this is held by the two spring elements lying next to this row of pins, while the other two spring elements cannot be used or can be omitted.
  • the screen housing 103 is placed with its bottom surface 115 over the back of the last body and is pushed with resiliently widened side walls 116 over the side walls of the last body and locked with angled edge sections 117 on the front side of the last body.
  • These edge sections 117 each have a recess 118 with which they can be locked on corresponding support ribs 119 (see FIGS. 4 to 6).
  • spring arms 120 are formed on the edge sections 117 along the side walls, which are bent away from the strip body and, when the plug connector is installed on a mounting plate 110 (see FIG. 3), result in contacting or ground connection without additional measures.
  • the support ribs 119 prevent the spring arms 120 from being deformed too much when the connector is pressed against the mounting plate.
  • the inwardly curved spring arms 120 which are distributed over the entire peripheral edge of the shield housing, ensure uniform contacting of the shield housing with the mounting plate 110.
  • the inwardly bent springs ensure that all contact forces are absorbed directly and over a large area by the strip body 101 and that a relaxation of the spring force by flowing plastic anchors is avoided.
  • the floor of the umbrella housing has a large cutout 121 in the area of the chamber 102, which is delimited at the edges by holding brackets 122 projecting outwards.
  • the planar filter element 105 is held and contacted with these holding angles 122.
  • the planar filter element 105 is shown in plan view in FIG. It has one on a common substrate 123 capacitive circuit arrangement, which is not shown in detail here.
  • a contact surface 124 is provided on the upper side corresponding to each plug pin, while a common ground contact surface 125 is provided all around the edge in the same plane on the upper side.
  • a separating notch 126 is preformed between the two rows of contact surfaces 124.
  • the twelve-pole flanar filter of FIG. 10 can be divided along this separating notch into two six-pole planar filters if, for example, only one row of connector pins is to be provided with a filter in the example shown.
  • the ferrite block 109 When assembling the connector, the ferrite block 109 is first inserted into the chamber 102 via the connector pins 104.
  • the planar filter 105 is then plugged over the connector pins and then pressed and held with the shield housing attached via the holding bracket 122 against the force of the spring elements 111 into the chamber.
  • the shield housing 103 is snapped onto the strip body 101 in the manner described.
  • the individual capacitor elements of the planar filter are then contacted by soldering the contact surfaces 124 to the plug pins 104 and the contact surface 125 to the brackets 122.
  • the mounting bracket 122 Due to the shape of the mounting bracket 122, which is offset from the back of the strip body, it is possible to solder both the plug pins with the contact surfaces 124 and the mounting bracket 122 with the contact surface 125 in one operation using conventional soldering methods, such as dip soldering or the like.
  • the soldering level is offset from the back of the ledge body, so that the entire arrangement does not need to be immersed up to this back in the solder bath.
  • the filter plug shown in FIGS. 11 and 12 has a strip body 1 which forms a chamber 2 which is open towards the rear. This chamber 2 is closed off by a shield plate 3 (not shown in FIG. 12). Through the chamber 2 connector pins 4 are guided, which lead through capacitors 5 enter the chamber through the shield plate 3 and are led through the bottom 6 of the chamber to the front of the plug, where they form free plug ends 4a for connection to a plug socket. The free connector ends are surrounded by a collar 7 formed on the strip body 1, which also has locking elements 8 for locking a connector coupling as a counterpart.
  • the connector pins 4 are arranged in a predetermined grid; however, only one connector pin 4 is shown in FIG.
  • One of these ferrite bodies is shown in section in FIGS. 11 and 12.
  • the retaining strip which is shown in FIG. 13 alone in a view from below, has pegs 11 formed in the grid of the connecting pins, each of which has an axial, continuous recess 12 which serves to receive the associated plug pin 4.
  • the bushing 12 with a square cross section is adapted to the shape of the plug pins 4.
  • the outer diameter of the pin 11 is matched to the inner diameter of the ferrite body 9, so that the ferrite body which is in each case placed on a pin is centered and held against radial movements without play.
  • Opposite the pins 11 are frustoconical projections 13 formed on the bottom 6 of the last body, each of which protrude more or less into the inner bore of the ferrite body and thereby form a centering and a tolerance compensation.
  • the retaining strip has molded, freely resilient tongues 14 between the pins 11, which are on both sides of a pin rest on the edge of an attached ferrite body and bias it against the bottom 6.
  • tongues shown here differently designed resilient sections of the holding strip 10 could of course also be provided.
  • two tongues each could be assigned to one pin. In the present example, however, when a ferrite body is plugged in, there is also a symmetrical clamping on both sides by the tongues 14 lying on both sides of a pin 11.
  • the diameter of the ferrite body 9 is so large that in the present grid the connector pins are adjacent Connector pins cannot be provided with a ferrite body at the same time.
  • Another embodiment would also be conceivable, however, in which, due to a larger grid spacing of the connector pins or a smaller diameter of the ferrite body, each adjacent connector pin could also be provided with such a ferrite body.
  • the elastic tongues or other spring sections of the retaining strip would also have to be designed accordingly.
  • the retaining strip is fastened via laterally formed locking hooks 15, which are snapped into corresponding recesses 16 in the strip body.
  • the holding strip rests with its end sections 17 on corresponding shoulders 18 of the strip body.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP90908488A 1989-10-12 1990-06-07 Filter-steckverbinder Expired - Lifetime EP0495778B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8912173U 1989-10-12
DE8912173U DE8912173U1 (de) 1989-10-12 1989-10-12 Filter-Stecker
DE9005597U DE9005597U1 (de) 1990-05-16 1990-05-16 Filter-Steckverbinder
DE9005597U 1990-05-16

Publications (2)

Publication Number Publication Date
EP0495778A1 EP0495778A1 (de) 1992-07-29
EP0495778B1 true EP0495778B1 (de) 1994-02-23

Family

ID=25955404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90908488A Expired - Lifetime EP0495778B1 (de) 1989-10-12 1990-06-07 Filter-steckverbinder

Country Status (5)

Country Link
US (1) US5246387A (ja)
EP (1) EP0495778B1 (ja)
JP (1) JP2513930B2 (ja)
DE (1) DE59004707D1 (ja)
WO (1) WO1991006136A1 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112098U1 (de) * 1991-09-27 1993-01-28 Siemens AG, 8000 München Filter-Stecker
DE9208702U1 (de) * 1992-06-29 1993-10-28 Siemens AG, 80333 München Filter-Steckverbinder mit Schirmgehäuse
DE9208703U1 (de) * 1992-06-29 1993-10-28 Siemens AG, 80333 München Filter-Steckverbinder mit Schirmgehäuse
US5286221A (en) * 1992-10-19 1994-02-15 Molex Incorporated Filtered electrical connector assembly
US5415569A (en) * 1992-10-19 1995-05-16 Molex Incorporated Filtered electrical connector assembly
US5456616A (en) * 1994-02-04 1995-10-10 Molex Incorporated Electrical device employing a flat flexible circuit
US5456619A (en) * 1994-08-31 1995-10-10 Berg Technology, Inc. Filtered modular jack assembly and method of use
IE960312A1 (en) * 1995-06-02 1996-12-11 Alza Corp An electrotransport delivery device with voltage boosting¹circuit
US6267626B1 (en) * 1996-02-22 2001-07-31 Omega Engineering, Inc. Connector for thermoelectric devices
US6045406A (en) * 1997-06-27 2000-04-04 Omega Engineering, Inc. Connector with protection from radiated and conducted electromagnetic emissions
JP3451946B2 (ja) * 1998-07-03 2003-09-29 住友電装株式会社 コネクタ
US6142831A (en) * 1999-02-01 2000-11-07 Aux Corporation Multifunction connector assembly
US6663431B1 (en) 2002-08-30 2003-12-16 International Business Machines Corporation Shielding in a power connector
CN104966865A (zh) * 2015-07-13 2015-10-07 常州汇森电子有限公司 带插针保护套的陶瓷滤波器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200355A (en) * 1961-11-24 1965-08-10 Itt Electrical connector having rf filter
US3538464A (en) * 1963-08-20 1970-11-03 Erie Technological Prod Inc Multiple pin connector having ferrite core stacked capacitor filter
DE3016315C2 (de) * 1980-04-28 1982-04-29 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Steckverbinder mit Verbindungsstiften
US4791391A (en) * 1983-03-30 1988-12-13 E. I. Du Pont De Nemours And Company Planar filter connector having thick film capacitors
BR8401386A (pt) * 1983-03-30 1984-11-06 Du Pont Conector de filtro
JPS62180882U (ja) * 1986-05-08 1987-11-17
US4761147A (en) * 1987-02-02 1988-08-02 I.G.G. Electronics Canada Inc. Multipin connector with filtering

Also Published As

Publication number Publication date
WO1991006136A1 (de) 1991-05-02
JPH04504330A (ja) 1992-07-30
JP2513930B2 (ja) 1996-07-10
DE59004707D1 (de) 1994-03-31
US5246387A (en) 1993-09-21
EP0495778A1 (de) 1992-07-29

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