EP2112716B1 - Kontaktelement für eine Anschlussklemme und Anschlussklemme - Google Patents

Kontaktelement für eine Anschlussklemme und Anschlussklemme Download PDF

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Publication number
EP2112716B1
EP2112716B1 EP09001431A EP09001431A EP2112716B1 EP 2112716 B1 EP2112716 B1 EP 2112716B1 EP 09001431 A EP09001431 A EP 09001431A EP 09001431 A EP09001431 A EP 09001431A EP 2112716 B1 EP2112716 B1 EP 2112716B1
Authority
EP
European Patent Office
Prior art keywords
terminal
clamping
contact element
clamp
contact
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
EP09001431A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2112716A3 (de
EP2112716A2 (de
Inventor
Hermann Stadler
Frank Walter
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.)
MC Technology GmbH
Original Assignee
MC Technology GmbH
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 MC Technology GmbH filed Critical MC Technology GmbH
Publication of EP2112716A2 publication Critical patent/EP2112716A2/de
Publication of EP2112716A3 publication Critical patent/EP2112716A3/de
Application granted granted Critical
Publication of EP2112716B1 publication Critical patent/EP2112716B1/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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2491—Terminal blocks structurally associated with plugs or sockets
    • 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
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2458—Electrical interconnections between terminal blocks
    • 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
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • H01R31/085—Short circuiting bus-strips

Definitions

  • the invention relates to a contact element for a terminal, in particular for a circuit board terminal and a terminal.
  • a terminal usually has several poles on each of which a lead wire can be fixed by clamping action in a conductive connection to a contact element for forwarding an electrical signal. From the contact element, the electrical signal is then tapped usually by one or more fixed or detachable conductive connections. Each pole of a terminal thus corresponds to a clamping element and the entire terminal is composed of several such clamping elements.
  • terminals for connecting a plurality of lead wires in general and circuit board terminals for connecting a plurality of lead wires to printed circuit boards in particular, it is often the case that two or more terminal members of the terminal are to be electrically connected to each other. This is usually done by a U-shaped bent piece of wire or a U-shaped stamped part is inserted and clamped in the nip.
  • the problem with this approach is that at least one of the connected terminal points additionally a connection wire must be connected, so that at this point two elements must be clamped.
  • a secure contact between the two elements can not be regarded as guaranteed, for example, because the diameter of U-shaped Wire piece or stamped part on the one hand and lead wire on the other hand differ from each other. Particularly vulnerable have proved because of their particularly robust, cost-effective to produce and extremely comfortable in handling clamping mechanism widely used spring clips.
  • each contact elements for a terminal known, which are designed as stamped and bent part that recesses for receiving a jumper and a clamping means for fixing a terminal pin have.
  • the object of the invention is therefore to provide a contact element for a terminal, in particular for a circuit board terminal, a terminal and a jumper for a terminal, with the connection of poles of the terminal is flexible, needs and cost possible.
  • the core idea of the invention is to implement a contact element for a terminal as a stamped and bent part, in which at least a first clamping means for fixing a jumper and a second clamping means for fixing a terminal pin are integrated.
  • first and second clamping means are an integral part of the stamped and bent part and the corresponding sections of the stamped and bent parts are optionally provided with a suitable mechanical bias.
  • a separate terminal contact for a jumper is provided, via which different contact elements can be short-circuited to each other, while at the same time ensures an optimal clamping action for pin and electrical conductor on all terminal contacts.
  • the inventively designed, multifunctional contact element can be in a single process step, namely by performing the stamping bending process, easily and inexpensively.
  • the stamped and bent part has a cage-like structure, since then, for example, a force flow introduced into the contact element by an additional clamping spring arranged as a separate part in the contact element can be closed.
  • the first clamping means has at least one clamping leg, for example, a insertable between clamping leg and a wall or a second clamping leg contact fingers of a jumper in the inserted state by a clamping action on a fixed to the clamping leg side surface of the contact finger.
  • a particularly secure clamping connection guaranteeing embodiment of the first clamping means provides that the at least one clamping leg a structure, e.g. an undercut or a bulge into which a corresponding bulge or an undercut of a contact finger can be accommodated.
  • Such clamping means can be provided very easily by punching out a corresponding shape from a sheet metal strip.
  • a wide usability in a single embodiment of the contact element can be achieved if the second clamping means is designed for the insertion of the terminal pin from three different spatial directions.
  • the contact element is further improved if it additionally has a test contact surface which makes it possible to check the signal currently applied to this component.
  • An inventive terminal in particular printed circuit board terminal, has at least two clamping elements, each having an insulating housing and a disposed within the insulating housing according to the invention contact element.
  • the insulating housing of at least two of the clamping elements, in particular the clamping elements, which are to be electrically conductively connected to each other, a wire insertion opening, a separate from the wire insertion opening jumper insertion opening and at least one further opening for producing a plug contact with a Pin or a pin header has. This ensures that its own and thus adapted to the particular requirements of each plug contact terminal point is available for each provided plug contact.
  • the insulating housing has at least one locking device with which it is fixable to a housing or a printed circuit board.
  • variable and retrofittable electrical connection of at least two clamping elements of such a terminal is particularly suitable jumper and in particular a jumper, which is in the mated state in each case with the first clamping means of the contact elements of the respective clamping elements in clamping connection.
  • the jumper for a contact element advantageously has a front part and at least two contact fingers. It is particularly easy to handle, if the front part is at least partially angled. In order to allow a safe removal of the jumper at all just applied to the contact element voltages, it is very useful if the front part is at least partially covered with an insulation.
  • the jacket can be achieved by an attached plastic part or by an overmolded part.
  • a particularly secure hold of the jumper is achieved if the at least one of the contact fingers has a bulge or an undercut, whereby a Verrastungsrial in the associated clamping means is achieved in particular if they have a corresponding undercut or a corresponding bulge.
  • jumper as stamped and bent part, which advantageously has a U-shaped in a two-pole bridge and a comb-like shape in a multi-pole bridge.
  • FIG. 1 shows a view of a terminal 100 according to the invention and an unplugged jumper 3.
  • the in FIG. 1 shown terminal 100 is designed for four connecting wires, not shown, a design for more or fewer connecting wires is also possible.
  • a modular construction of the terminal from individual, interconnectable clamping elements 101, an inseparable design is also possible.
  • Each clamping element 101 shows an insulating housing 1, which is usually made of an electrically insulating material, with a wire insertion opening 4 and a jumper insertion opening 5 and a pusher 2, which is also usually made of an electrically insulating material, and the insulating housing. 1 interspersed.
  • the insulating housing 1 has at least one latching device 6 for latching into a printed circuit board or a wall of a housing. Laterally, the terminal 100 is closed by a side wall 102.
  • FIG. 2 shows a view of the composite of four clamping elements 101 terminal 100 FIG. 1 with the side wall 102 removed so that a view into the interior of one of the clamping elements 101 is possible.
  • the insulating housing 1 has, in addition to the wire insertion opening 4, the jumper insertion opening 5 and the insulating housing 1 passing through Pusher 2 three openings 10, 11, 12 for plug contacts, not shown on.
  • a contact element 8 is arranged, which is accessible from the outside via atician 9.
  • FIG. 4 An embodiment of the contact element 8 of the terminal 100 from FIG. 1 is FIG. 4 refer to.
  • the contact element 8 is designed as a one-piece stamped and bent part.
  • the contact element 8 is further formed like a cage.
  • Essential to the invention is that in the contact element 8, a first clamping means 13 and a second clamping means 15 are integrated, which are in particular designed in one piece and integral with the contact element 8.
  • the first clamping means 13 is in the embodiment according to FIG. 4 Specifically around two clamping legs with an undercut 14.
  • the second clamping means 15 is designed as a contact spring having insertion aids 22 in three directions, which facilitate the production of a clamping contact with a not shown, supplied from these directions pin.
  • a sketch animation 16 which is accessible via the sketchabgriff 9.
  • the test contact surface 16 provided on the contact element 8 makes it possible, via a test tap 9, to pick up the current and voltage conditions currently prevailing on the contact element 8 and supply it to a measurement.
  • a base plate 401 defines by its transverse extent an x-axis 419, its longitudinal extent a y-axis 420 and its thickness extension a z-axis 421, which together form a right-handed Cartesian coordinate system.
  • the coordinate system defined in this way corresponds to "larger” and “smaller” x values “to the front”, “larger” and “smaller” y values to the “right” and smaller z values to the "upper” and “lower” ones.
  • substantially parallel to the y-axis edge of the base plate 401 is extending beyond the right edge of the base plate 401 further to the right extending first strip of material 408 about a substantially parallel to the y-axis axis upwards up bent.
  • the portion of the first strip of material 408 adjacent to the base plate 401 serves for lateral stabilization of the in FIG. 4 not shown clamping spring in the forward direction.
  • first material strip 408 following the extension of the first material strip 408 further to the right, it initially runs obliquely to the right rear, then merges into a substantially parallel to the x-axis, rectangular clamping surface 410, in the remaining three directions of relative to the clamping surface 410 obliquely forward surfaces 411, 412, 413 is surrounded.
  • This portion of the first strip of material 408 forms a first part of the clamping means 15; another strip of material 414, the configuration of which will be described below, forms a second part of the clamping means 15.
  • a rear wall 403 is bent so that it extends in the z-direction. From the rear wall 403, a second strip of material 404 is bent out, that it lies above the base plate 401 parallel to this. The second strip of material 404 prevents tilting of the in FIG. 4 not shown clamping spring.
  • a ceiling plate 405 is bent, which extends parallel to the base plate 401 substantially along the x-axis.
  • the wire On the base plate 401 side facing the ceiling plate 405 comes the wire, not shown, when inserted and by a purely in FIG. 2 and FIG. 3 shown clamping spring 7 is fixed to the plant.
  • a rectangular punched 406 is arranged to receive the in the FIGS. 1 to 3 shown pusher 2 is used.
  • a third strip of material 407 is bent out so that it extends parallel to the x-direction and that on the one hand, the front edge of the base plate 401, the front edge of the third strip of material 407 and the front edge of the ceiling plate 405 in a Plane lie and on the other hand, the left edge of the base plate 401, the left edge of the third material strip 407 and the left edge of the ceiling plate 405 lie in a plane.
  • the strip of material 407 serves to secure the clamping spring 7, not shown, against over-pushing the contact element 8 to the right.
  • a fourth strip of material 409 is bent out so that it extends parallel to the x-direction and the front edge of the fourth strip of material 409 and the cover plate 405 lie in one plane.
  • the fourth strip of material serves as a support for the educative components 16, of him in the front part of its upper Edge region is bent to the right, so that the educative components 16 is substantially parallel to the ceiling plate 405 and is arranged with this in a plane or slightly below it.
  • the fifth strip of material 414 transitions into a substantially parallel and equal square second clamping surface 415 to the first clamping surface 410 in the remaining three directions relative to the second clamping surface 415 obliquely backward surfaces 416, 417, 418 is surrounded.
  • the clamping spring 7 forms the third clamping means of the terminal 100.
  • In the rear region of the contact element 8 can be seen that with this integrally executed second clamping means 15th
  • a jumper 3 is used, via which these two clamping elements 101 are connected to each other conductive.
  • the jumper 3 can of course also be designed so that more than two clamping elements 101 are conductively connected to each other or that two non-adjacent clamping elements 101 are connected together.
  • the depression of the clamping spring 7 can also be brought about by pressure on the pusher 2, which rests on a shoulder or bearing surface of the clamping spring 7. Then the connecting wire is inserted and jammed by eliminating the pressure on the pusher. In both cases, a pressure on the pusher 2 is exerted to release the connection, thereby pressed down the clamping spring 7 and thus overcome the clamping action of the clamping spring 7. In the depressed state of Clamping spring 7 then the connecting wire can be easily removed again.
  • the contact element 8 is made of electrically conductive material. An electrical signal supplied via a connecting wire inserted into the clamping element 101 will therefore propagate in the contact element 8 and in particular in the contact spring for the plug contact.
  • An electrical signal supplied via a connecting wire inserted into the clamping element 101 will therefore propagate in the contact element 8 and in particular in the contact spring for the plug contact.
  • Through the openings 10, 11 and / or 12 can be made from three different spatial directions, a plug contact with the running as a contact spring second clamping means 15 by simply a in FIG. 2 not shown conductive pin or pin is inserted into the contact spring.
  • FIG. 3 shows a cross section through the terminal 100 FIG. 1 , This illustration are next to the already off FIG. 1 respectively.
  • FIG. 2 known elements to take more details, in particular with regard to the arrangement of the clamping spring 7 in the contact element eighth
  • FIG. 5 shows an embodiment of the detailed structure of the jumper 3, which is particularly advantageous designed as a stamped and bent part. It advantageously has an angled front part 20, emanating from the two contact fingers 17, but in principle can also be the contact fingers 17 in the same plane as the front part 20; However, the angled arrangement facilitates handling and in particular the removal of the jumper 3.
  • the number of contact fingers can also be larger, so that there is a comb-like structure.
  • the inserted jumper 3 is determined by a clamping interaction with the integrally provided on the contact element 8 first clamping means 13 (see. FIG. 3 ). A secure fit of the jumper 3 in the inserted state is in particular by the provision of bulges 18, the inserted jumper 3 in the in FIG.
  • Front part 20 and contact fingers 17 are usually made of an electrically conductive material; In particular, the front part 20 may also be at least partially surrounded by an insulating layer, not shown.
  • FIG. 6 shows a bottom view of two juxtaposed and spaced apart contact elements 8 according to FIG. 4 a terminal, which are connected by means of an inserted jumper 3.
  • the contact limbs, which realize the first clamping means 13, with the undercut 14, the second clamping means 15 in the form of a contact spring for the plug contact and the test contact surface 16 are clearly visible in the illustrated viewing perspective from below.
  • FIG. 6 it can be seen particularly clearly the interaction between the provided on the contact elements 8 contact legs 13 and the undercut 14 on the one hand and the contact fingers 17 with recess 18 and recess 19 on the other hand, which guarantees a secure, but also reliable detachable connection of contact elements 8 via the jumper 3 ,
  • the first clamping means 13 is formed separately from the second clamping means 15 and also separately from the third clamping means designed as a clamping spring 7, a reliable fixation of the jumper 3 regardless of the fixation of the terminal pin 21 via the To allow clamping means 15 and the fixation of the connecting wire via the clamping spring 7.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP09001431A 2008-04-23 2009-02-03 Kontaktelement für eine Anschlussklemme und Anschlussklemme Active EP2112716B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008020511A DE102008020511A1 (de) 2008-04-23 2008-04-23 Kontaktelement für eine Anschlussklemme, Anschlussklemme und Steckbrücke für ein Kontaktelement

Publications (3)

Publication Number Publication Date
EP2112716A2 EP2112716A2 (de) 2009-10-28
EP2112716A3 EP2112716A3 (de) 2010-11-03
EP2112716B1 true EP2112716B1 (de) 2012-09-12

Family

ID=40874775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001431A Active EP2112716B1 (de) 2008-04-23 2009-02-03 Kontaktelement für eine Anschlussklemme und Anschlussklemme

Country Status (4)

Country Link
US (1) US7845969B2 (zh)
EP (1) EP2112716B1 (zh)
DE (1) DE102008020511A1 (zh)
TW (1) TWI404281B (zh)

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US20090269985A1 (en) 2009-10-29
TW200950240A (en) 2009-12-01
EP2112716A3 (de) 2010-11-03
DE102008020511A1 (de) 2009-11-05
EP2112716A2 (de) 2009-10-28
TWI404281B (zh) 2013-08-01

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