EP1635424A2 - Elément de contact - Google Patents

Elément de contact Download PDF

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Publication number
EP1635424A2
EP1635424A2 EP05019413A EP05019413A EP1635424A2 EP 1635424 A2 EP1635424 A2 EP 1635424A2 EP 05019413 A EP05019413 A EP 05019413A EP 05019413 A EP05019413 A EP 05019413A EP 1635424 A2 EP1635424 A2 EP 1635424A2
Authority
EP
European Patent Office
Prior art keywords
connection
contact
terminal block
contact element
element 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.)
Withdrawn
Application number
EP05019413A
Other languages
German (de)
English (en)
Other versions
EP1635424A3 (fr
Inventor
Marcel Strobel
Werner Kallee
Mario Tolj
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.)
Wuerth Elektronik GmbH and Co KG
Original Assignee
Wuerth Elektronik 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 Wuerth Elektronik GmbH and Co KG filed Critical Wuerth Elektronik GmbH and Co KG
Publication of EP1635424A2 publication Critical patent/EP1635424A2/fr
Publication of EP1635424A3 publication Critical patent/EP1635424A3/fr
Withdrawn legal-status Critical Current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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes

Definitions

  • the invention relates to a connection element for printed circuit boards and a method for producing such a connection element.
  • Circuit boards are used to hold and connect electronic components. But it is necessary to supply the printed circuit boards with electricity.
  • connection elements For feeding serve connection elements to which a supply line can be attached.
  • the connection elements must fulfill a double task. First, they must have a sufficiently large cross-section for the power supply line, and second, they must have sufficient mechanical strength.
  • connection elements which are made of a piece of metal and having a plurality of contact elements, with which they can be pressed into plated through holes.
  • the contact pins are produced by milling an initially flat end face of the connecting element several times in two different directions. So that the end surfaces can be milled so that the pins formed thereby no Burrs arise, the material of the connection element must contain lead. Milling results in high production costs. Also, the milling is hardly possible in the required tolerances.
  • connection elements made of sheet metal with recessed or welded nuts.
  • Such connection elements offer only a few connection options.
  • the invention is based on the object to provide a way to produce connection elements with lower production costs and greater variety of connection options while avoiding the Bleianteils and adhering to technologically necessary tolerances.
  • connection element with the features mentioned in claim 1 and / or a method for its production with the features mentioned in claim 18. Further developments of the invention are the subject of the respective dependent claims.
  • connection element thus consists of two parts, a terminal block and a contact element.
  • the connection block looks similar to a connection element in the prior art, with the difference that the end face of this connection block does not need to be milled, since no contact pins should arise here. Since the terminal block does not need to be milled, it is not necessary to make it from leaded material.
  • the contact element is manufactured as a separate component and then connected to the terminal block. It can therefore be connected contact elements with a variety of terminal blocks, so that with only a few elements a large number of connection options can be realized.
  • connection between the terminal block and the contact element is preferably carried out in a development along a separation or connection surface, which is preferably flat. But also a cylindrical surface is possible.
  • the terminal block may be formed in a further development of the invention as a solid part, in particular as part of a longer profile. This additionally reduces the production costs.
  • the contact element can be punched in a further development of the invention from a piece of sheet metal, wherein the pins are produced without additional operation during punching. Subsequently, the contact element can be bent, for example in the form of a U with two parallel legs, at the ends of the contact pins are then formed.
  • the contact element may further comprise two rows of contact pins, for example, parallel to each other.
  • connection between the two parts namely the contact element and the terminal block, can be done by a soldering.
  • connection is that a plug inserted through an opening of the web pin is pressed in a blind hole or a through hole of the terminal block.
  • the method for producing a connection element provides, first by cutting to length of a metal profile to produce the terminal block, which then has a flat separation surface and a fastening means for a supply line.
  • the attachment means for the supply line may be formed, for example, on an end surface of the connection block facing away from the separation surface, but it may also be any other surface.
  • a blank for the contact element is punched, which simultaneously receives a plurality of pins during punching.
  • This blank is bent, for example, U-shaped.
  • the separation surface of the terminal block and the web of the blank are then connected to each other, wherein the compound is for example a soldering.
  • a sleeve element by deep drawing or bending in the middle region of the contact element.
  • This sleeve member with a circular cylindrical passage can also be used to secure the terminal block.
  • the terminal block may be a simple rod in a circular cylindrical sleeve member, the can also be broken down into parts, so that the production can be carried out very easily and inexpensively.
  • the connected to the contact element or connected in the end result terminal block is designed as a pin, for example, preferably has a corrugated press-fit.
  • a press-fit is designed so that it produces a mechanical and electronic secure connection when pressed by projections.
  • the terminal block has a shoulder which abuts in the assembled state on the upper side or on the underside of the web of the contact element.
  • this shoulder can serve to limit the Einpresstiefe the terminal block, if it is pressed.
  • this shoulder is arranged at the end of the press-in section.
  • a head is formed, which has on its side facing the rest of the terminal block the limiting shoulder.
  • Figure 1 shows a side view of the constructed of two interconnected parts connecting element. It contains a terminal block 1, which is made of a square in cross-section metal profile. This terminal block 1 contains in the region of its one end a flat separation surface 2, which of course can also be referred to as a connection surface. In the region of its end opposite the flat parting surface 2, the terminal block 1 is provided with a fastening means 3, in the example shown a threaded pin 4. This threaded pin 4 is an integral part of the terminal block 1. It can be produced by turning.
  • the connecting element further includes a contact element 5, which in the illustrated side view has the shape of a U, with two mutually parallel legs 6 and a connecting web 7.
  • the two legs 6 are not only parallel to each other, but also the same length.
  • the legs 6 facing away from the surface of the web 7 is connected to the end face 2 of the terminal block 1.
  • the connection occurs along a flat surface.
  • the connection may be, for example, a solder. Due to the large area and large mechanical forces can be transmitted or recorded.
  • the contact element 5 looks as shown in Figure 2.
  • Figure 2 shows a view only of the contact element 5 from a relation to Figure 1 offset by 90 ° direction. It can be seen here in front view, one of the two legs 6 of the contact element 5.
  • the web 7 facing away from the end of the legs 6 has a plurality of contact pins 8, which are pressed into corresponding through holes of a printed circuit board. The pressing is done in Figure 1 and 2 from top to bottom, ie in the longitudinal direction of the legs 6 of the contact element 5.
  • the contact pins 8 are separated by notches 9 from each other.
  • the depth of the incisions 9 is the same length everywhere, so that the pins 8 are the same length everywhere. This applies to both legs 6.
  • connection blocks 1 intended for a particular type of feed can form a multiplicity of connection possibilities for any desired application.
  • FIGS. 3 and 4 show a possibility of how the two parts can be connected to each other in a different way.
  • the individual parts are shown in FIG.
  • the connection block 1 contains a blind hole 10 starting from its separating surface 2. By the way, it is exactly the same as the connection block 1 of FIG. 1.
  • the contact element 5 contains in its web 7 a hole, which is of course not visible in the side view of the contact element 5.
  • a pin 11, which has a head 12 is used to connect the terminal block 1 and the contact element 5.
  • the pin 11 is inserted through the hole in the web 7 of the contact element 5 therethrough.
  • the terminal block 1 is heated, so that the inner diameter of the blind hole 10 increases slightly.
  • the pin 11 is inserted into the hole 10, and then done by cooling the terminal block 1, the determination. Again, a connection between the terminal block 1 and the contact element 5 along a surface, which is for the transmission of the current of importance. The result of this process is shown in FIG.
  • connection element proposed by the invention offers the advantage, in addition to the already mentioned larger variation possibility with few elements, that lead-free material can be used, that technologically necessary tolerances can be maintained and that the production costs can be significantly reduced.
  • FIG. 5 shows a further embodiment of the connection element proposed by the invention, in which case the contact element is shown prior to its connection to the connection block.
  • the starting point is again a flat sheet metal blank, which, however, in contrast to the embodiment according to the preceding figures, has contact pins 8 on all four outer edges. This means that after the bending into the illustrated form two pairs of mutually parallel contact pins 8 are present.
  • a sleeve member 15 is formed, which was prepared by deep drawing.
  • the sleeve element 15 extends on the upper side of the contact element facing away from the contact pins 8, wherein the upper side is understood to mean that side which points away from the printed circuit board in the installed state.
  • the transition between the flat central portion 16 of the sheet metal blank for the contact element and the sleeve member 15 produced by deep drawing or bending runs rounded.
  • the inner wall 17 of the sleeve member 15 may have all manufacturable during deep drawing or bending training, for example, a corrugation.
  • a correspondingly shaped part of a terminal block can be pressed.
  • a circle cylindrical element is shown as a terminal block 19 for simplicity. Due to the circular cylindrical shape, it can be pressed into the sleeve member 15.
  • a thread can be formed on the connection block of FIG. 6 in order to provide a possibility of attaching a conduit there.
  • FIGS. 7 and 8 show a further possibility of how a connection element according to the invention can be constructed.
  • the connecting element shown in the assembled state in FIG. 8 contains a connection block 20 in the form of a pin 21.
  • This cylindrical pin 21 has a press-in section 22 at its lower end region assigned to the contact element 5 in FIG.
  • the cylindrical lateral surface of this press-in section 22 is corrugated and has a chamfer 23 in the end region.
  • a shoulder 24 is formed at the end of the press-in portion 22, a shoulder 24 is formed.
  • the pin merges into the cylindrical part.
  • the cylindrical part is smooth. He could also be provided with an external thread.
  • the contact section 5 is in turn similarly constructed as in the previous embodiments, that is punched out of sheet metal.
  • the contact element 5 is U-shaped.
  • the legs having the contact pins 8 are connected in the middle by a web 7, which forms a flat parting surface for the terminal block 20 formed as a pin 21.
  • a circular hole 25 is present.
  • the pin 21 is pressed with its press-in portion 22 from above. The pressing is done until the pin hangs with his shoulder 24 on top of the web 7. Press-fitting produces both a secure mechanical and electrical connection.
  • the pin 21 is provided with a blind hole 26 in the region of its press-in section 22. This makes it possible to crimp after pressing the free edge in the area of the chamfer 23, thereby obtaining an additional mechanical security.
  • FIG. 7 a press-in section 32 is formed which, in contrast to the press-in section 22 of the embodiment according to FIG. 7, has a slightly larger diameter than the smooth-surfaced remaining part of the press-fit pin 31.
  • a shoulder 34 is in this Trap formed on a head 35 which is formed at the end of this pin 31 beyond the press-in portion 32.
  • the head 35 may for example have a square cross-section, or be formed as a conventional hexagonal head to achieve an additional anti-rotation of the press-in pin 31 in the contact portion 5 between the legs thereof.
  • FIG. 11 schematically shows the view of the contact element of FIG. 10 from below, that is to say from the side of the printed circuit board.
  • FIG. 8 and FIG. 10 that side windows 40 are present in the side walls of the contact element directly underneath the flat sheet metal surface, see also FIG. 12.
  • a commercially available hexagon bolt so are two sides 41 of the screw head 42 on the inner sides of the contact pins 8 having parts of the sheet on. Two corners 43 of the screw head 42 then come to lie in the mentioned window 40, as indicated in the schematic illustration of FIG. So it can be used despite a square construction, a commercial screw with a hexagonal head.
  • the screw head can be pressed in from below, wherein the sides of the contact element can yield slightly. This has the additional advantage that the screw head is held captive by engagement of the corners 43 in the window 40 in the contact element, even if nothing is attached to its shaft.
  • lateral shoulders 44 are formed after the stamping and bending of the sheet metal part from which the contact element is made. This is again shown in FIG. These shoulders are formed on all side walls of the pot-like contact element. They are all in one plane, which is not necessary. For pressing the contact element, these shoulders 44 have the advantage that they lie in a straight line extension of the flat side walls of the contact element.
  • the invention now provides for the use of a contact element to use a tool 45 which engages precisely on these shoulders 44.
  • the tool 45 which is shown in section in Figure 12, in an inner receptacle 46 projections 47 which correspond in shape and arrangement of the shoulders 44.
  • the receptacle 46 is designed such that a connecting element connected to the contact element still engages in the receptacle 46.
  • the receptacle 46 can be designed so that this is an additional guide of the tool 45 before and during the pressing is. It is important that the force acting on the contact element during pressing Forces extend in axial extension of the planar side walls of the contact element.
  • outer guide surfaces 48 are still provided, which serve to guide the tool 45 on the outer sides of the contact element, before and during the pressing.
  • the inside of the tool that is to say the boundary surfaces of the receptacle 46 in the region of the tool 45 facing the contact element, is designed to be complementary to the corresponding side of the contact element.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
EP05019413A 2004-09-09 2005-09-07 Elément de contact Withdrawn EP1635424A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004044354A DE102004044354A1 (de) 2004-09-09 2004-09-09 Anschlusselement

Publications (2)

Publication Number Publication Date
EP1635424A2 true EP1635424A2 (fr) 2006-03-15
EP1635424A3 EP1635424A3 (fr) 2006-03-29

Family

ID=35427482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05019413A Withdrawn EP1635424A3 (fr) 2004-09-09 2005-09-07 Elément de contact

Country Status (2)

Country Link
EP (1) EP1635424A3 (fr)
DE (1) DE102004044354A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006038354A1 (de) * 2006-08-10 2008-02-14 Würth Elektronik GmbH & Co. KG Anschlusselement
DE102008050668A1 (de) * 2008-09-23 2010-03-25 Würth Elektronik Ics Gmbh & Co. Kg Anschlusselement für Leiterplatten
WO2018184629A1 (fr) * 2017-04-06 2018-10-11 Würth Elektronik Ics Gmbh & Co.Kg Élément enfichable destiné au raccordement à une carte de circuit imprimée pourvue de trous métallisés
WO2019081151A1 (fr) * 2017-10-24 2019-05-02 HELLA GmbH & Co. KGaA Contact à pression pour courants forts

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700232A1 (de) * 1977-01-05 1978-07-13 Licentia Gmbh Schraubklemme fuer gedruckte leiterplatten
US4555847A (en) * 1984-06-11 1985-12-03 Amp Incorporated Connector insertion tool
DE8605937U1 (de) * 1986-03-05 1986-11-20 Kallee, Werner, 7121 Cleebronn Stromversorgungselement
US5145408A (en) * 1989-06-26 1992-09-08 Siemens Aktiengesellschaft Connector for solderless attachment to a printed circuit board
DE4242837A1 (de) * 1992-12-17 1994-06-23 Siemens Ag Verfahren und Vorrichtung zum Einpressen von metallischen Elementen in Trägerteile
FR2730097A1 (fr) * 1995-01-30 1996-08-02 Framatome Connectors France Procede de realisation d'un bornier pour montage sur circuit imprime et bornier obtenu par un tel procede
EP1447882A1 (fr) * 2003-02-17 2004-08-18 Zapi S.P.A. Connecteur pour connecter des cartes électroniques à des cables électriques

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226172C2 (de) * 1992-08-07 1995-06-08 Wuerth Elektronik Gmbh & Co Kg Stromversorgungselement für Leiterplatten
DE29600371U1 (de) * 1996-01-10 1996-06-13 Siemens AG, 80333 München Hochstrom-Kabelklemme für eine Leiterplattenanordnung
GB9808975D0 (en) * 1998-04-27 1998-06-24 Amp Great Britain Flexible circuit electrical connector assembly
DE20108731U1 (de) * 2001-05-23 2001-08-30 Grote & Hartmann Stromeinspeisung für Leiterplatten
TW555194U (en) * 2002-11-29 2003-09-21 Hon Hai Prec Ind Co Ltd Electrical connector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700232A1 (de) * 1977-01-05 1978-07-13 Licentia Gmbh Schraubklemme fuer gedruckte leiterplatten
US4555847A (en) * 1984-06-11 1985-12-03 Amp Incorporated Connector insertion tool
DE8605937U1 (de) * 1986-03-05 1986-11-20 Kallee, Werner, 7121 Cleebronn Stromversorgungselement
US5145408A (en) * 1989-06-26 1992-09-08 Siemens Aktiengesellschaft Connector for solderless attachment to a printed circuit board
DE4242837A1 (de) * 1992-12-17 1994-06-23 Siemens Ag Verfahren und Vorrichtung zum Einpressen von metallischen Elementen in Trägerteile
FR2730097A1 (fr) * 1995-01-30 1996-08-02 Framatome Connectors France Procede de realisation d'un bornier pour montage sur circuit imprime et bornier obtenu par un tel procede
EP1447882A1 (fr) * 2003-02-17 2004-08-18 Zapi S.P.A. Connecteur pour connecter des cartes électroniques à des cables électriques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006038354A1 (de) * 2006-08-10 2008-02-14 Würth Elektronik GmbH & Co. KG Anschlusselement
DE102008050668A1 (de) * 2008-09-23 2010-03-25 Würth Elektronik Ics Gmbh & Co. Kg Anschlusselement für Leiterplatten
WO2018184629A1 (fr) * 2017-04-06 2018-10-11 Würth Elektronik Ics Gmbh & Co.Kg Élément enfichable destiné au raccordement à une carte de circuit imprimée pourvue de trous métallisés
WO2019081151A1 (fr) * 2017-10-24 2019-05-02 HELLA GmbH & Co. KGaA Contact à pression pour courants forts

Also Published As

Publication number Publication date
DE102004044354A1 (de) 2006-03-16
EP1635424A3 (fr) 2006-03-29

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