EP3799212B1 - Terminal block - Google Patents

Terminal block Download PDF

Info

Publication number
EP3799212B1
EP3799212B1 EP20187947.5A EP20187947A EP3799212B1 EP 3799212 B1 EP3799212 B1 EP 3799212B1 EP 20187947 A EP20187947 A EP 20187947A EP 3799212 B1 EP3799212 B1 EP 3799212B1
Authority
EP
European Patent Office
Prior art keywords
cage
tool
opening
shell
conductor
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
EP20187947.5A
Other languages
German (de)
French (fr)
Other versions
EP3799212A1 (en
Inventor
Olaf Baumeister
Philipp Henrici
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.)
BJB GmbH and Co KG
Original Assignee
BJB 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 BJB GmbH and Co KG filed Critical BJB GmbH and Co KG
Publication of EP3799212A1 publication Critical patent/EP3799212A1/en
Application granted granted Critical
Publication of EP3799212B1 publication Critical patent/EP3799212B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/48275—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end with an opening in the housing for insertion of a release tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • 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
    • H01R13/11—Resilient 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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/22—Hand tools
    • 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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring

Definitions

  • the invention relates to an assembly with a connection terminal and an associated opening tool with the features of the preamble of claim 1.
  • connection terminals are mostly without a housing and are designed as SMD components (surface mount device). They are placed on printed circuit boards and are used to connect connecting conductors, in particular single-wire or multi-wire cables. Multi-wire cables are cables in which a conductor is formed from several individual wires.
  • Generic connection terminals are generally highly miniaturized and are often arranged in rows next to one another, with connection terminals without a housing having to have a minimum insulation distance from one another. However, this is generally smaller than the distance between two housing walls arranged next to one another and connecting terminals that are connected to the housing.
  • US 2017/0005421 A1 shows a terminal block with an integrated opening tool.
  • a sheet metal strip formed from the connection terminal material is bent back here and forms two arms. These pierce the cage ceiling and grab a clamping spring.
  • guide wings are arranged in front of the arms in the insertion direction, which center the conductor.
  • the aforementioned publication also discloses a tool for opening the clamping point.
  • This opening tool has a tunnel-like free cut, which serves to accommodate the connection terminal in the opening tool.
  • One of the sections of the release tool parallel to the side wall of the connection terminals cooperates with the operating handle of the connection terminal.
  • the clamping point is opened by placing the opening tool on the connection terminal and pressing down on the spring element.
  • connection terminal in particular one without a housing
  • opening mechanism of which at the terminal point has an advantageous effect on the arrangement distances to be maintained.
  • the object of the invention is achieved by an assembly consisting of a connection terminal and an opening tool with the features of claim 1, in particular with its characterizing features, according to which the opening tool has two tool attachments arranged at a distance from one another, which are cylindrical in shape, of the same design and whose cross-sectional contour corresponds to the openings of the Cage top are adapted, the distance between the tool attachments to each other allows a recording of the cage bar remaining between the cage top openings, the tool attachments have a circular-cylindrical section, which, seated in the casing recess of the connecting terminal, narrows a conductor receiving space and guides a conductor to be inserted into the conductor receiving space.
  • the main advantage of this opening tool is that the cylinder-shaped tool attachments can be kept slim and narrow and therefore no space is required that would affect the distance between the connection terminal and the adjacent component.
  • the tool attachment Since the tool attachment has a circular-cylindrical section and, being seated in the casing recess of the connecting terminal, narrows a conductor receiving space, it acts and guides a conductor to be inserted into the conductor receiving space.
  • the particular advantage here is that the conductor is centered in the terminal point, thus ensuring that on the one hand the spring element does not tilt due to an off-centre conductor and on the other hand it ensures that with multi-wire conductors no individual cores emerge from the sheath opening provided by the tool attachment.
  • an opening tool with two tool attachments spaced apart from one another makes it possible to act on the spring element on both sides. Compared to only a one-sided effect this has the advantage that tilting of the spring element is avoided. Such tilting can result in the spring element tilting in the connection terminal and not pivoting back into its contact position on the counter bearing, which holds the conductor in a clamping manner.
  • the web of material located between the cage top openings helps to position the opening tool correctly.
  • An opening tool is particularly preferred in which the opening tool has a movement limit stop that limits the immersion depth of the tool attachment into the casing recess in order to prevent damaging movement of the spring element of the connection terminal.
  • the movement limit stop reliably prevents excessive stress on the spring element and thus damage to it.
  • the two tool attachments accommodate the movement limit stop between them.
  • the cage shell forms a holding contour for the spring element and that the holding contour of the shell merges into the shell recess.
  • This embodiment has considerable advantages in terms of manufacturing technology, because the holding contour with the casing recess can be manufactured in one manufacturing step using a corresponding punching tool. In particular, it makes sense to hold the contour, the opening in the Carry out cage ceiling and the opening in the side wall as a uniform shell recess.
  • the purpose of the invention is also served by an opening tool with the features of independent claim 6, in particular with its characterizing features, according to which the opening tool has at least one tool attachment which is shaped like a cylinder.
  • connection terminal 10 is given the reference number 10 in its entirety.
  • Terminal 10 is in figure 1 shown in perspective. It comprises a contact cage 11 which is formed by a cage top 12, a cage bottom 13 and two side walls 14 connecting the cage bottom 13 and the cage top 12.
  • the contact cage 11 On a first, front end face, the contact cage 11 has a conductor insertion opening 16 into which connection conductors, for example single-wire or multi-wire cables, are inserted in the conductor insertion direction x for electrical contacting.
  • the cage floor 13 forms a guide tongue 17 which, starting from the conductor insertion opening 16, extends in the direction of the opposite, second end face and whose free end 18 (see FIG figure 3 ) in the direction of the cage ceiling 12. In this way, the guide tongue 17 forms a first inclined guide surface 19 .
  • the second end face of the contact cage 11 opposite the conductor insertion opening 16 is secured by a stabilizing wall 20 (see FIG figure 3 ) locked.
  • the contact cage 11 has two casing recesses 21 which are mirror-symmetrical to a vertical longitudinal center plane not shown here.
  • the respective shell recess 21 can be subdivided into an opening 22 in the cage ceiling 12, an opening 23 in the side wall 14 and a holding contour 24 worked partly into the side wall 14 and partly into the cage floor 13.
  • the Holding contour 24 serves to fix a spring element 25 in the contact cage 11.
  • the cage jacket is drawn in. This results in a cross-sectional reduction directed in the direction of the longitudinal axis of the contact cage compared to the normal contour of the connection terminal 10, which is primarily formed here by side wall sections 26 that are offset in the direction of the vertical longitudinal center plane. Due to the inwardly offset side wall sections 26, the side walls 14 form second inclined guide surfaces 27 in the area of the conductor insertion opening 16, so that a funnel-like conductor insertion area is formed, which precedes the drawn-in jacket area A in the conductor insertion direction x.
  • figure 2 shows the terminal 10 according to figure 1 in side view.
  • figure 3 shows a sectional view of the terminal 10 according to
  • FIG 2 along a vertical longitudinal plane.
  • the spring element 25 is shown partly in dashed lines.
  • This is a torsion spring that forms a first leg 28 parallel to the cage floor and a second leg 29 . Both legs 28, 29 are connected to one another by a U-shaped section.
  • the second leg 29 is divided into a bearing section 30 parallel to the bottom of the cage and a clamping section 31, which extends and is prestressed in the direction of the cage ceiling 12.
  • This clamping section 31 interacts with the cage ceiling 12, which serves as a counter bearing, and forms a clamping point 32.
  • the stripped end of a Connection cable held for the purpose of electrical contact and mechanical definition.
  • the inner surface of the cage ceiling 12 has a profile, here in the form of notches 33. These increase the friction between the connection cable and the cage cover 12 and thus form an additional protection against being pulled out.
  • figure 4 shows the schematic representation of an opening tool 50 with a tool head 51, the two tool approaches 52 arise.
  • the tool attachments are arranged at a distance from one another, are designed essentially cylindrically and are designed in the same way. Their cross-sectional contour is adapted to the openings 22 in the cage ceiling 12, into which they are able to dip.
  • the distance between the tool attachments 52 to one another is selected such that they can accommodate the cage top web 34 remaining between the cage top openings 22 (see, for example, figure 1 ).
  • the cylindrical tool attachments 52 are positioned above the openings 22 in the cage cover 12 and then inserted into the openings 22.
  • the opening tool 50 is moved in the direction of the cage floor 13 , the tool attachments 52 penetrating into the openings 23 in the side walls 14 after passing through the openings 22 in the cage cover 13 .
  • the spring element 25 namely the second leg 29 facing the cage top, in particular its clamping section 31.
  • a further displacement of the opening tool 50 in the direction of the cage floor 13 causes a movement of the clamping section 31 in the direction of the cage floor 13.
  • the free end of the clamping section 31 separates from the inner surface of the cage roof 12 and thus opens the clamping point 32.
  • This opening movement is terminated by the tool head 51 running onto the outer surface of the cage roof 12.
  • the Terminal 10 facing the end face of the tool head 51 or its arranged between the tool lugs 52 range from a movement end stop.
  • the tool attachments 52 that protrude partially around the circumference of the conductor receiving space 15 have a guiding effect on a conductor that is to be inserted. This slides, if it has an offset to the vertical longitudinal center plane, on the outer surfaces of the tool attachments 52 and is shifted towards the center. This is particularly advantageous for multi-wire connection cables.
  • the electrically conductive wire consists of several individual strands. If these are not tinned and have mushroomed or fanned out slightly due to mechanical damage, the outer surfaces of the tool attachments 52 guide such individual wires in the direction of the center or vertical longitudinal center plane of the contact cage 11 and thus away from the lateral openings 23 . An escape of such individual wires a connecting cable from the contact cage 11 is reliably avoided in this way.
  • the diameter of the tool attachments 52 is dimensioned such that they largely close the openings 23 in the side walls 14, this also prevents the conductor to be inserted into the connection terminal 10 from escaping during manual or machine assembly.
  • figure 7 shows two connecting terminals 10 arranged next to each other in pairs in a perspective view
  • figure 8 shows a view of the conductor insertion openings 16 of two connecting terminals 10 arranged next to each other in pairs.
  • figure 8 is also supplemented by the representation of an opening tool 50.
  • two terminals 10 are shown as an example in a conventional arrangement next to each other.
  • the distance between the two connection terminals 10 is limited to a minimum due to the isolation distance. Since the cylindrical normal contour of the connection terminals 10 of the invention determines the width of the contact cage 11 and - unlike in the prior art - no lateral actuating handle protrudes from the normal cross-sectional contour, the cage width alone determines the minimum distance between two connection terminals 10 from one another.
  • figure 8 shows that an increase in the minimum distance is also not necessary with regard to the opening tool 50 to be used. Since the tool attachments 52 penetrate the interior of the contact cage 11 with a partial circumferential section, the insulating distance is sufficient to use the opening tool 50 according to the invention to open the clamping point 32 in an advantageous manner.
  • connection terminal 10 according to the invention therefore makes it possible to minimize the installation space required from an insulation point of view on a circuit board, which is particularly advantageous when a plurality of connection terminals 10 are arranged next to one another. Nevertheless, using the opening tool 50 according to the invention, the connection terminal 10 according to the invention still makes it possible to open the terminal point 32 for inserting or removing connection conductors.

Description

Die Erfindung betrifft eine Baugruppe mit einer Anschlussklemme und einem zugehörigen Öffnungswerkzeug mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an assembly with a connection terminal and an associated opening tool with the features of the preamble of claim 1.

Solche Anschlussklemmen sind zumeist gehäuselos und als SMD-Bauteile (surface mount device) ausgeführt. Sie werden auf Leiterplatten aufgesetzt und dienen dem Anschluss vom Anschlussleitern, insbesondere ein- oder mehrdrahtigen Kabeln. Als mehrdrahtig werden Kabel bezeichnet, bei welchen ein Leiter aus mehreren Einzeldrähten gebildet ist. Gattungsgemäße Anschlussklemmen sind in der Regel hochminiaturisiert und werden häufig in Reihen nebeneinander angeordnet, wobei gehäuselose Anschlussklemmen einen Mindestisolationsabstand zueinander aufweisen müssen. Dieser ist jedoch in der Regel geringer, als der Abstand zweier nebeneinander angeordneter Gehäusewände von gehäusebehafteten Anschlussklemmen.Such connection terminals are mostly without a housing and are designed as SMD components (surface mount device). They are placed on printed circuit boards and are used to connect connecting conductors, in particular single-wire or multi-wire cables. Multi-wire cables are cables in which a conductor is formed from several individual wires. Generic connection terminals are generally highly miniaturized and are often arranged in rows next to one another, with connection terminals without a housing having to have a minimum insulation distance from one another. However, this is generally smaller than the distance between two housing walls arranged next to one another and connecting terminals that are connected to the housing.

Als Beispiel für eine gattungsgemäße Anschlussklemme kann diejenige der DE 10 2015 122 400 A1 dienen. Diese verfügt über einen Freischnitt in einer Seitenwand der Anschlussklemme. Über diesen Freischnitt ist eine Bedienhandhabe nach außen geführt, die mit dem in der Anschlussklemme einsitzenden Federelement zur klemmenden Halterung eines Anschlusskabels wirkverbunden ist. Mittels dieser Bedienhandhabe lässt sich das Federelement von seinem Gegenlager beabstanden, um Anschlusskabel widerstandsfrei in die Anschlussklemme einführen zu können oder - sofern der Bedarf besteht - in der Anschlussklemme gehaltene Anschlusskabel aus der Anschlussklemme entfernen zu können.As an example of a generic terminal that can DE 10 2015 122 400 A1 serve. This has a cutout in a side wall of the connection terminal. An operating handle is guided to the outside via this cut-out, which is operatively connected to the spring element seated in the connection terminal for the clamping retention of a connection cable. Using this operating handle, the spring element can be spaced from its counter bearing in order to be able to insert connection cables into the connection terminal without resistance or—if necessary—to be able to remove connection cables held in the connection terminal from the connection terminal.

Prinzipiell ähnliche Anschlussklemmen offenbaren US 2008/090471 A1 , US 2019/0229441 A1 und US2018/0254567 A1 .Basically similar terminals disclose U.S. 2008/090471 A1 , US 2019/0229441 A1 and US2018/0254567 A1 .

US 2017/0005421 A1 zeigt eine Anschlussklemme mit integriertem Öffnungswerkzeug. Ein Blechstreifen, geformt aus dem Anschlussklemmenmaterial ist hier zurückgebogen und bildet zwei Arme aus. Diese durchstößen die Käfigdecke und greifen auf eine Klemmfeder. Um Kollisionen des Anschlussleiters mit diesen Armen zu vermeiden, sind den Armen in Einsteckrichtung Führflügel vorgeordnet, die den Leiter zentrieren. US 2017/0005421 A1 shows a terminal block with an integrated opening tool. A sheet metal strip formed from the connection terminal material is bent back here and forms two arms. These pierce the cage ceiling and grab a clamping spring. In order to avoid collisions of the connection conductor with these arms, guide wings are arranged in front of the arms in the insertion direction, which center the conductor.

Die vorgenannte Druckschrift offenbart auch ein Werkzeug zum Öffnen der Klemmstelle. Dieses Öffnungswerkzeug weist einen tunnelartigen Freischnitt auf, welcher der Aufnahme der Anschlussklemme im Öffnungswerkzeug dient. Einer der Anschlussklemmen seitenwandparallelen Abschnitte des Lösewerkzeugs kooperiert mit der Bedienhandhabe der Anschlussklemme. Durch das Aufsetzen des Öffnungswerkzeugs auf die Anschlussklemme und Niederdrücken des Federelementes wird die Klemmstelle geöffnet.The aforementioned publication also discloses a tool for opening the clamping point. This opening tool has a tunnel-like free cut, which serves to accommodate the connection terminal in the opening tool. One of the sections of the release tool parallel to the side wall of the connection terminals cooperates with the operating handle of the connection terminal. The clamping point is opened by placing the opening tool on the connection terminal and pressing down on the spring element.

Dieser Stand der Technik wird als verbesserungswürdig angesehen. Sowohl die Bedienhandhabe als metallisches, elektrisch leitendes Bauteil als auch das Öffnungswerkzeug beeinflussen den zwischen zwei nebeneinander angeordneten Anschlussklemmen erforderlichen Mindestabstand nachteilig und setzen somit der Bauraumminimierung bei Anordnung mehrerer Anschlussklemmen nebeneinander Grenzen.This prior art is considered to be in need of improvement. Both the operating handle as a metallic, electrically conductive component and the opening tool have a disadvantageous effect on the minimum distance required between two connecting terminals arranged next to one another and thus limit the space minimization when arranging several connecting terminals next to one another.

Es ist deshalb Aufgabe der Erfindung, eine gattungsgemäße, insbesondere gehäuselose Anschlussklemme zu schaffen, deren Öffnungsmechanismus der Klemmstelle sich vorteilhaft auf einzuhaltende Anordnungsabstände auswirkt.It is therefore the object of the invention to create a generic connection terminal, in particular one without a housing, the opening mechanism of which at the terminal point has an advantageous effect on the arrangement distances to be maintained.

Gelöst wird die Aufgabe der Erfindung durch eine Baugruppe aus Anschlussklemme und Öffnungswerkzeug mit den Merkmalen des Anspruches 1, insbesondere mit dessen kennzeichnenden Merkmalen, wonach das Öffnungswerkzeug zwei zueinander beabstandet angeordnete Werkzeugansätz aufweist, die zylinderartig geformt, gleichartig ausgebildet und in ihrer Querschnittskontur an die Öffnungen der Käfigdecke angepasst sind, wobei der Abstand der Werkzeugansätze zueinander eine Aufnahme des zwischen den Käfigdeckenöffnungen verbleibenden Käfigstegs ermöglicht,
die Werkzeugansätze einen kreiszylindrischen Abschnitt aufweisen, die in der Mantelausnehmung der Anschlussklemme einsitzend einen Leiteraufnahmeraum verengen und führend auf einen in den Leiteraufnahmeraum einzusteckenden Leiter wirken.The object of the invention is achieved by an assembly consisting of a connection terminal and an opening tool with the features of claim 1, in particular with its characterizing features, according to which the opening tool has two tool attachments arranged at a distance from one another, which are cylindrical in shape, of the same design and whose cross-sectional contour corresponds to the openings of the Cage top are adapted, the distance between the tool attachments to each other allows a recording of the cage bar remaining between the cage top openings,
the tool attachments have a circular-cylindrical section, which, seated in the casing recess of the connecting terminal, narrows a conductor receiving space and guides a conductor to be inserted into the conductor receiving space.

Der wesentliche Vorteil dieses Öffnungswerkzeuges liegt darin, dass die zylinderartig geformten Werkzeugansätze schlank und schmal gehalten werden können und somit kein den Abstand zwischen Anschlussklemme und benachbartem Bauteil beeinflussender Bauraum erforderlich ist.The main advantage of this opening tool is that the cylinder-shaped tool attachments can be kept slim and narrow and therefore no space is required that would affect the distance between the connection terminal and the adjacent component.

Da der Werkzeugansatz einen kreiszylindrischen Abschnitt aufweist und in der Mantelausnehmung der Anschlussklemme einsitzend einen Leiteraufnahmeraum verengt, wirkt er und führend auf einen in den Leiteraufnahmeraum einzusteckenden Leiter. Der besondere Vorteil hier liegt darin, den Leiter in der Klemmstelle zu zentrieren und somit sicherzustellen, dass einerseits das Federelement durch einen dezentrierten Leiter nicht verkippt und andererseits sicherzustellen, dass bei mehrdrahtigen Leitern keine Einzeladern aus der von dem Werkzeugansatz vorgesehenen Mantelöffnung auftreten.Since the tool attachment has a circular-cylindrical section and, being seated in the casing recess of the connecting terminal, narrows a conductor receiving space, it acts and guides a conductor to be inserted into the conductor receiving space. The particular advantage here is that the conductor is centered in the terminal point, thus ensuring that on the one hand the spring element does not tilt due to an off-centre conductor and on the other hand it ensures that with multi-wire conductors no individual cores emerge from the sheath opening provided by the tool attachment.

Weiterhin ermöglicht ein Öffnungswerkzeug mit zwei voneinander beabstandeten Werkzeugansätzen beidseitig auf das Federelement einzuwirken. Gegenüber lediglich einer einseitigen Einwirkung hat dies den Vorteil, dass ein Verkippen des Federelementes vermieden wird. Ein solches Verkippen kann dazu führen, dass sich das Federelement in der Anschlussklemme verkantet und nicht in seine, den Leiter klemmend haltende Andrucklage am Gegenlager zurück schwenkt.Furthermore, an opening tool with two tool attachments spaced apart from one another makes it possible to act on the spring element on both sides. Compared to only a one-sided effect this has the advantage that tilting of the spring element is avoided. Such tilting can result in the spring element tilting in the connection terminal and not pivoting back into its contact position on the counter bearing, which holds the conductor in a clamping manner.

Der zwischen den Käfigdeckenöffnungen befindliche Materialsteges hilft, das Öffnungswerkzeug korrekt zu positionieren.The web of material located between the cage top openings helps to position the opening tool correctly.

Besonders bevorzugt ist ein Öffnungswerkzeug, bei welchem das Öffnungswerkzeug über einen Bewegungsendanschlag verfügt, der die Eintauchtiefe des Werkzeugansatzes in die Mantelausnehmung begrenzt, um eine schädigende Bewegung des Federelementes der Anschlussklemme zu verhindern.An opening tool is particularly preferred in which the opening tool has a movement limit stop that limits the immersion depth of the tool attachment into the casing recess in order to prevent damaging movement of the spring element of the connection terminal.

Durch den Bewegungsendanschlag wird eine übermäßige Beanspruchung des Federelementes und somit dessen Schädigung sicher vermieden.The movement limit stop reliably prevents excessive stress on the spring element and thus damage to it.

Es bietet sich an, dass der Bewegungsendanschlag mit einer Käfigdecke eines Kontaktkäfigs der Anschlussklemme zusammenwirkt.It makes sense for the movement end stop to interact with a cage cover of a contact cage of the connection terminal.

Vorgesehen ist insbesondere, dass die zwei Werkzeugansätze den Bewegungsendanschlag zwischen sich aufnehmen.In particular, it is provided that the two tool attachments accommodate the movement limit stop between them.

Schließlich ist vorgesehen, dass der Käfigmantel eine Haltekontur für das Federelement ausbildet und dass die Haltekontur des Mantels in die Mantelausnehmung übergeht.Finally, it is provided that the cage shell forms a holding contour for the spring element and that the holding contour of the shell merges into the shell recess.

Diese Ausführungsform hat fertigungstechnisch erhebliche Vorteile, weil die Haltekontur mit der Mantelausnehmung in einem Fertigungsschritt durch ein entsprechendes Stanzwerkzeug gefertigt werden kann. Insbesondere bietet es sich an, die Haltekontur, die Öffnung in der Käfigdecke sowie die Durchbrechung in der Seitenwand als eine einheitliche Mantelausnehmung auszuführen.This embodiment has considerable advantages in terms of manufacturing technology, because the holding contour with the casing recess can be manufactured in one manufacturing step using a corresponding punching tool. In particular, it makes sense to hold the contour, the opening in the Carry out cage ceiling and the opening in the side wall as a uniform shell recess.

Dem Erfindungszweck dient darüber hinaus ein Öffnungswerkzeug mit den Merkmalen des nebengeordneten Anspruches 6, insbesondere mit dessen kennzeichnenden Merkmalen, wonach das Öffnungswerkzeug wenigstens einen Werkzeugansatz aufweist, der zylinderartig geformt ist.The purpose of the invention is also served by an opening tool with the features of independent claim 6, in particular with its characterizing features, according to which the opening tool has at least one tool attachment which is shaped like a cylinder.

Weitere Vorteile der Erfindung sowie ein besseres Verständnis ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles. Es zeigen:

Figur 1
eine erfindungsgemäße Anschlussklemme in perspektivischer Ansicht,
Figur 2
die Anschlussklemme gemäß Figur 1 in Seitenansicht,
Figur 3
die Anschlussklemme gemäß Figur 1 in einer Schnittdarstellung entlang einer vertikalen Längsschnittebene,
Figur 4
ein erfindungsgemäßes Öffnungswerkzeug,
Figur 5
das Öffnungswerkzeug gemäß Figur 4 in Wirkstellung an einer Anschlussklemme gemäß Figur 1,
Figur 6
die Darstellung gemäß Figur 5 in Seitenansicht,
Figur 7
die Anordnung zweier Anschlussklemmen gemäß Figur 1 nebeneinander,
Figur 8
die Darstellung gemäß Figur 7 mit Öffnungswerkzeug gemäß Figur 4 in Wirkstellung.
Further advantages of the invention and a better understanding result from the following description of an exemplary embodiment. Show it:
figure 1
a terminal according to the invention in a perspective view,
figure 2
the terminal according to figure 1 in side view,
figure 3
the terminal according to figure 1 in a sectional view along a vertical longitudinal plane,
figure 4
an opening tool according to the invention,
figure 5
the opening tool according to figure 4 in the active position at a terminal according to figure 1 ,
figure 6
the representation according to figure 5 in side view,
figure 7
the arrangement of two connection terminals according to figure 1 side by side,
figure 8
the representation according to figure 7 with opening tool according to figure 4 in operative position.

In den Figuren ist eine erfindungsgemäße Anschlussklemme insgesamt mit der Bezugsziffer 10 versehen. Die Anschlussklemme 10 ist in Figur 1 in perspektivischer Darstellung gezeigt. Sie umfasst einen Kontaktkäfig 11, der von einer Käfigdecke 12, einem Käfigboden 13 und zwei, den Käfigboden 13 und die Käfigdecke 12 verbindenden Seitenwänden 14 gebildet ist.In the figures, a connection terminal according to the invention is given the reference number 10 in its entirety. Terminal 10 is in figure 1 shown in perspective. It comprises a contact cage 11 which is formed by a cage top 12, a cage bottom 13 and two side walls 14 connecting the cage bottom 13 and the cage top 12.

Käfigdecke 12, Käfigboden 13 und die Seitenwände 14 bilden gemeinsam den Käfigmantel und umgeben einen Leiteraufnahmeraum 15 (siehe Figur 3). An einer ersten, vorderen Stirnseite verfügt der Kontaktkäfig 11 über eine Leitereinstecköffnung 16, in welche Anschlussleiter, beispielsweise ein oder mehrdrahtige Kabel in Leitereinschubrichtung x für eine elektrische Kontaktierung eingeschoben werden. Der Käfigboden 13 bildet im Bereich der Leitereinstecköffnung 16 eine Leitzunge 17 aus, die sich ausgehend von der Leitereinstecköffnung 16 in Richtung gegenüberliegender, zweiter Stirnseite erstreckt und deren freies Ende 18 (siehe Figur 3) in Richtung Käfigdecke 12 weist. Auf diese Weise bildet die Leitzunge 17 eine erste Führungsschrägfläche 19 aus.Cage ceiling 12, cage floor 13 and the side walls 14 together form the cage shell and surround a conductor receiving space 15 (see figure 3 ). On a first, front end face, the contact cage 11 has a conductor insertion opening 16 into which connection conductors, for example single-wire or multi-wire cables, are inserted in the conductor insertion direction x for electrical contacting. In the region of the conductor insertion opening 16, the cage floor 13 forms a guide tongue 17 which, starting from the conductor insertion opening 16, extends in the direction of the opposite, second end face and whose free end 18 (see FIG figure 3 ) in the direction of the cage ceiling 12. In this way, the guide tongue 17 forms a first inclined guide surface 19 .

Die der Leitereinstecköffnung 16 gegenüberliegende, zweite Stirnseite des Kontaktkäfigs 11 ist durch eine Stabilisierungswand 20 (siehe Figur 3) verschlossen.The second end face of the contact cage 11 opposite the conductor insertion opening 16 is secured by a stabilizing wall 20 (see FIG figure 3 ) locked.

Der Kontaktkäfig 11 weist zwei Mantelausnehmungen 21 auf, die spiegelsymmetrisch zu einer hier nicht eingezeichneten, vertikalen Längsmittelebene ausgebildet sind. Die jeweilige Mantelausnehmung 21 lässt sich unterteilen in eine Öffnung 22 der Käfigdecke 12, eine Durchbrechung 23 der Seitenwand 14 sowie eine teils in die Seitenwand 14 und teils in den Käfigboden 13 eingearbeitete Haltekontur 24. Die Haltekontur 24 dient der Festlegung eines Federelementes 25 im Kontaktkäfig 11.The contact cage 11 has two casing recesses 21 which are mirror-symmetrical to a vertical longitudinal center plane not shown here. The respective shell recess 21 can be subdivided into an opening 22 in the cage ceiling 12, an opening 23 in the side wall 14 and a holding contour 24 worked partly into the side wall 14 and partly into the cage floor 13. The Holding contour 24 serves to fix a spring element 25 in the contact cage 11.

In einem Bereich A zwischen Leitereinstecköffnung 16 und Käfigdeckenöffnung 22 ist der Käfigmantel eingezogen. Hierdurch ergibt sich eine gegenüber der Normalkontur der Anschlussklemme 10 in Richtung Kontaktkäfiglängsachse gerichtete Querschnittsverringerung, die hier vornehmlich durch in Richtung vertikaler Längsmittelebene versetzte Seitenwandabschnitte 26 gebildet ist. Durch die nach innen versetzten Seitenwandabschnitte 26 bilden die Seitenwände 14 im Bereich der Leitereinstecköffnung 16 zweite Führungsschrägflächen 27 aus, so dass sich ein trichterartiger Leitereinführbereich ausbildet, der dem eingezogenen Mantelbereich A in Leitereinsteckrichtung x vorgeordnet ist.In an area A between the conductor insertion opening 16 and the cage top opening 22, the cage jacket is drawn in. This results in a cross-sectional reduction directed in the direction of the longitudinal axis of the contact cage compared to the normal contour of the connection terminal 10, which is primarily formed here by side wall sections 26 that are offset in the direction of the vertical longitudinal center plane. Due to the inwardly offset side wall sections 26, the side walls 14 form second inclined guide surfaces 27 in the area of the conductor insertion opening 16, so that a funnel-like conductor insertion area is formed, which precedes the drawn-in jacket area A in the conductor insertion direction x.

Figur 2 zeigt die Anschlussklemme 10 gemäß Figur 1 in Seitenansicht. figure 2 shows the terminal 10 according to figure 1 in side view.

Figur 3 zeigt eine Schnittdarstellung der Anschlussklemme 10 gemäß figure 3 shows a sectional view of the terminal 10 according to

Figur 2 entlang einer vertikalen Längsschnittebene. Deutlich sichtbar und in Figur 2 teils gestrichelt ist das Federelement 25 dargestellt. Hierbei handelt es sich um eine Schenkelfeder, die einen ersten, käfigbodenparallelen Schenkel 28 sowie einen zweiten Schenkel 29 ausbildet. Beide Schenkel 28, 29 sind durch einen U-förmigen Abschnitt miteinander verbunden. figure 2 along a vertical longitudinal plane. Clearly visible and in figure 2 The spring element 25 is shown partly in dashed lines. This is a torsion spring that forms a first leg 28 parallel to the cage floor and a second leg 29 . Both legs 28, 29 are connected to one another by a U-shaped section.

Der zweite Schenkel 29 teilt sich in einen käfigbodenparallelen Auflageabschnitt 30 und einen in Richtung Käfigdecke 12 ausgestellten und vorgespannten Klemmabschnitt 31. Dieser Klemmabschnitt 31 wirkt mit der als Gegenlager dienenden Käfigdecke 12 zusammen und bildet eine Klemmstelle 32. In dieser Klemmstelle 32 wird das abisolierte Ende eines Anschlusskabels zwecks elektrischer Kontaktierung und mechanischer Festlegung gehalten. Hierzu verfügt die Innenoberfläche der Käfigdecke 12 über eine Profilierung, hier in Form von Kerben 33. Diese erhöhen die Reibung zwischen Anschlusskabel und Käfigdecke 12 und bilden so eine zusätzliche Auszugssicherung.The second leg 29 is divided into a bearing section 30 parallel to the bottom of the cage and a clamping section 31, which extends and is prestressed in the direction of the cage ceiling 12. This clamping section 31 interacts with the cage ceiling 12, which serves as a counter bearing, and forms a clamping point 32. In this clamping point 32, the stripped end of a Connection cable held for the purpose of electrical contact and mechanical definition. For this purpose, the inner surface of the cage ceiling 12 has a profile, here in the form of notches 33. These increase the friction between the connection cable and the cage cover 12 and thus form an additional protection against being pulled out.

Figur 4 zeigt die schematische Darstellung eines Öffnungswerkzeuges 50 mit einem Werkzeugkopf 51, dem zwei Werkzeugansätze 52 entspringen. Die Werkzeugansätze sind beabstandet zueinander angeordnet, im Wesentlichen zylindrisch ausgestaltet und gleichartig ausgebildet. Sie sind in ihrer Querschnittskontur an die Öffnungen 22 der Käfigdecke 12 angepasst, in welche sie einzutauchen in der Lage sind. Der Abstand der Werkzeugansätze 52 zueinander ist so gewählt, dass sie den zwischen den Käfigdeckenöffnungen 22 verbleibenden Käfigdeckensteg 34 zwischen sich aufnehmen können (siehe beispielsweise Figur 1). figure 4 shows the schematic representation of an opening tool 50 with a tool head 51, the two tool approaches 52 arise. The tool attachments are arranged at a distance from one another, are designed essentially cylindrically and are designed in the same way. Their cross-sectional contour is adapted to the openings 22 in the cage ceiling 12, into which they are able to dip. The distance between the tool attachments 52 to one another is selected such that they can accommodate the cage top web 34 remaining between the cage top openings 22 (see, for example, figure 1 ).

Anhand der Figuren 5 und 6 wird nunmehr gezeigt, wie das Öffnungswerkzeug 50 mit der Anschlussklemme 10 zum Öffnen der Klemmstelle 32 zusammenwirkt.Based on figures 5 and 6 It is now shown how the opening tool 50 interacts with the connection terminal 10 to open the terminal point 32 .

Zum Öffnen der Klemmstelle 32 der Anschlussklemme 10 werden die zylindrischen Werkzeugansätze 52 oberhalb der Öffnungen 22 der Käfigdecke 12 positioniert und sodann in die Öffnungen 22 eingesetzt. Das Öffnungswerkzeug 50 wird in Richtung Käfigboden 13 bewegt, wobei die Werkzeugansätze 52 nach Durchtreten der Öffnungen 22 der Käfigdecke 13 in die Durchbrechungen 23 der Seitenwände 14 eindringen. Sie treffen schließlich mit ihren dem Käfigboden 13 zugewandten Stirnflächen auf das Federelement 25, nämlich auf den der Käfigdecke zugewandten zweiten Schenkel 29, insbesondere auf dessen Klemmabschnitt 31. Eine weitergehende Verlagerung des Öffnungswerkzeugs 50 in Richtung Käfigboden 13 bewirkt eine Bewegung des Klemmabschnittes 31 in Richtung Käfigboden 13. Dadurch trennt sich das freie Ende des Klemmabschnitts 31 von der Innenoberfläche der Käfigdecke 12 und öffnet somit die Klemmstelle 32. Diese Öffnungsbewegung wird durch ein Auflaufen des Werkzeugkopfes 51 auf die Außenoberfläche der Käfigdecke 12 beendet. Insoweit bildet die der Anschlussklemme 10 zugewandte Stirnfläche des Werkzeugkopfes 51 bzw. dessen zwischen den Werkzeugansätzen 52 angeordneter Bereich einen Bewegungsendanschlag aus.To open the clamping point 32 of the connection terminal 10, the cylindrical tool attachments 52 are positioned above the openings 22 in the cage cover 12 and then inserted into the openings 22. The opening tool 50 is moved in the direction of the cage floor 13 , the tool attachments 52 penetrating into the openings 23 in the side walls 14 after passing through the openings 22 in the cage cover 13 . Finally, with their end faces facing the cage floor 13, they hit the spring element 25, namely the second leg 29 facing the cage top, in particular its clamping section 31. A further displacement of the opening tool 50 in the direction of the cage floor 13 causes a movement of the clamping section 31 in the direction of the cage floor 13. As a result, the free end of the clamping section 31 separates from the inner surface of the cage roof 12 and thus opens the clamping point 32. This opening movement is terminated by the tool head 51 running onto the outer surface of the cage roof 12. In this respect, the Terminal 10 facing the end face of the tool head 51 or its arranged between the tool lugs 52 range from a movement end stop.

Die Situation der maximalen Auslenkung des Klemmabschnitts 31 bzw. der maximalen Öffnung der Klemmstelle 32 ist in den Figuren 5 und 6 dargestellt. Unzweifelhaft ist hier zu erkennen, wie durch Auflaufen des Bewegungsendanschlages des Öffnungswerkzeuges 50, also der zum Käfigboden 13 bzw. nach unten weisende Oberflächenabschnitt auf der Käfigdecke 12 aufsitzt. In der Seitenansicht auf die Anschlussklemme 10 gemäß Figur 6 ist der hinter der Seitenwand gelegene Bereich des Klemmabschnitts 31 des Federelementes 25 gestrichelt dargestellt. Deutlich sichtbar ist, dass dieser von der Käfigdecke 12 beabstandet ist, die Klemmstelle 32 also geöffnet ist. In dieser ausgelenkten Position des zweiten Federschenkels 29 lässt sich in die offene Klemmstelle 32 ohne weiteren Widerstand das abisolierte Ende eines Anschlusskabels einschieben oder ein dort einsitzendes Anschlusskabel auf einfache Weise entfernen.The situation of the maximum deflection of the clamping section 31 and the maximum opening of the terminal point 32 is in the figures 5 and 6 shown. It can undoubtedly be seen here how the movement limit stop of the opening tool 50 , that is to say the surface section pointing towards the cage floor 13 or downward, is seated on the cage ceiling 12 . In the side view of the terminal 10 according to figure 6 the region of the clamping section 31 of the spring element 25 located behind the side wall is shown in dashed lines. It is clearly visible that this is at a distance from the cage ceiling 12, that is, the clamping point 32 is open. In this deflected position of the second spring leg 29, the stripped end of a connecting cable can be pushed into the open terminal point 32 without further resistance, or a connecting cable seated there can be easily removed.

Die in den Leiteraufnahmeraum 15 teilumfänglich hineinragenden Werkzeugansätze 52 wirken aufgrund ihrer im Querschnitt kreiszylindrischen Umfangsfläche auf einen einzuschiebenden Leiter führend. Dieser gleitet, sofern er zur vertikalen Längsmittelebene einen Versatz aufweist, an den Mantelflächen der Werkzeugansätze 52 ab und wird in Richtung Zentrum verlagert. Dies ist insbesondere bei mehrdrahtigen Anschlusskabeln von Vorteil. Bei diesen besteht der elektrisch leitende Draht aus mehreren Einzellitzen. Sofern diese unverzinnt sind und durch mechanische Beeinträchtigung leicht aufgepilzt oder aufgespleisst sind, führen die Außenoberflächen der Werkzeugansätze 52 solche Einzeldrähte in Richtung Zentrum bzw. vertikaler Längsmittelebene des Kontaktkäfigs 11 und somit von den seitlichen Durchbrechungen 23 weg. Ein Austreten solcher Einzeldrähte eines Anschlusskabels aus dem Kontaktkäfig 11 ist auf diese Weise sicher vermieden.Due to their circular-cylindrical peripheral surface in cross-section, the tool attachments 52 that protrude partially around the circumference of the conductor receiving space 15 have a guiding effect on a conductor that is to be inserted. This slides, if it has an offset to the vertical longitudinal center plane, on the outer surfaces of the tool attachments 52 and is shifted towards the center. This is particularly advantageous for multi-wire connection cables. In these, the electrically conductive wire consists of several individual strands. If these are not tinned and have mushroomed or fanned out slightly due to mechanical damage, the outer surfaces of the tool attachments 52 guide such individual wires in the direction of the center or vertical longitudinal center plane of the contact cage 11 and thus away from the lateral openings 23 . An escape of such individual wires a connecting cable from the contact cage 11 is reliably avoided in this way.

Wenn die Werkzeugansätze 52 darüber hinaus in ihrem Durchmesser so bemessen sind, dass sie die Durchbrechungen 23 der Seitenwände 14 weitestgehend verschließen, wird hierdurch zusätzlich ein Austreten des in die Anschlussklemme 10 einzuführenden Leiters während der manuellen oder maschinellen Konfektionierung vermeiden.If the diameter of the tool attachments 52 is dimensioned such that they largely close the openings 23 in the side walls 14, this also prevents the conductor to be inserted into the connection terminal 10 from escaping during manual or machine assembly.

Ein weiterer wesentlicher Vorteil der Erfindung wird anhand der Figuren 7 und 8 beschrieben. Figur 7 zeigt zwei paarweise nebeneinander angeordnete Anschlussklemmen 10 in perspektivischer Ansicht, Figur 8 zeigt eine Ansicht auf die Leitereinstecköffnungen 16 zweier paarweise nebeneinander angeordneter Anschlussklemmen 10. Figur 8 ist darüber hinaus ergänzt um die Darstellung eines Öffnungswerkzeuges 50.Another major advantage of the invention is based on the figures 7 and 8th described. figure 7 shows two connecting terminals 10 arranged next to each other in pairs in a perspective view, figure 8 shows a view of the conductor insertion openings 16 of two connecting terminals 10 arranged next to each other in pairs. figure 8 is also supplemented by the representation of an opening tool 50.

In den Figuren 7 und 8 sind zwei Anschlussklemmen 10 beispielhaft in einer üblichen Anordnung nebeneinander dargestellt. Der Abstand beider Anschlussklemmen 10 zueinander ist auf ein dem Isolationsabstand geschuldetes Minimum begrenzt. Da bei den Anschlussklemmen 10 der Erfindung die zylindrische Normalkontur die Breite des Kontaktkäfigs 11 bestimmt und - anders als beim Stand der Technik - keine seitliche Betätigungshandhabe gegenüber der Normalquerschnittskontur hervorstehen, bestimmt also allein die Käfigbreite den Mindestabstand zweier Anschlussklemmen 10 zueinander.In the figures 7 and 8th two terminals 10 are shown as an example in a conventional arrangement next to each other. The distance between the two connection terminals 10 is limited to a minimum due to the isolation distance. Since the cylindrical normal contour of the connection terminals 10 of the invention determines the width of the contact cage 11 and - unlike in the prior art - no lateral actuating handle protrudes from the normal cross-sectional contour, the cage width alone determines the minimum distance between two connection terminals 10 from one another.

Figur 8 zeigt, dass eine Erhöhung des Mindestabstandes auch im Hinblick auf das zu nutzende Öffnungswerkzeug 50 nicht erforderlich ist. Da die Werkzeugansätze 52 mit einem Teilumfangsabschnitt in dem Innenraum des Kontaktkäfigs 11 eindringen, ist der Isolationsabstand ausreichend, um auf vorteilhafte Weise das erfindungsgemäße Öffnungswerkzeug 50 zum Öffnen der Klemmstelle 32 zu nutzen. figure 8 shows that an increase in the minimum distance is also not necessary with regard to the opening tool 50 to be used. Since the tool attachments 52 penetrate the interior of the contact cage 11 with a partial circumferential section, the insulating distance is sufficient to use the opening tool 50 according to the invention to open the clamping point 32 in an advantageous manner.

Die erfindungsgemäße Anschlussklemme 10 ermöglicht es deshalb, den unter Isolationsgesichtspunkten erforderlichen Bauraum auf einer Platine zu minimieren, was insbesondere bei der Anordnung mehrerer Anschlussklemmen 10 nebeneinander vorteilhaft ist. Dennoch ermöglicht es die erfindungsgemäße Anschlussklemme 10 unter Nutzung des erfindungsgemäßen Öffnungswerkzeuges 50 weiterhin, die Klemmstelle 32 zum Einschieben oder zum Entnehmen von Anschlussleitern zu öffnen.The connection terminal 10 according to the invention therefore makes it possible to minimize the installation space required from an insulation point of view on a circuit board, which is particularly advantageous when a plurality of connection terminals 10 are arranged next to one another. Nevertheless, using the opening tool 50 according to the invention, the connection terminal 10 according to the invention still makes it possible to open the terminal point 32 for inserting or removing connection conductors.

BezugszeichenlisteReference List

1010
Anschlussklemmeterminal block
1111
Kontaktkäfigcontact cage
1212
Käfigdeckecage ceiling
1313
Käfigbodencage floor
1414
SeitenwandSide wall
1515
Leiteraufnahmeraumladder pickup room
1616
Leiteranstecköffnungconductor attachment opening
1717
Leitzungeguide tongue
1818
freies Ende von 17free end of 17
1919
erste Führungsschrägflächefirst guiding inclined surface
2020
Stabilisierungswandstabilization wall
2121
Mantelausnehmungjacket recess
2222
Öffnung von 12opening of 12
2323
Durchbrechungbreakthrough
2424
Haltekonturholding contour
2525
Federelementspring element
2626
Seitenwandabschnittsidewall section
2727
zweite Führungsschrägflächesecond guiding surface
2828
erster Schenkelfirst leg
2929
zweiter Schenkelsecond leg
3030
Auflageabschnitt von 29Edition section of 29
3131
Klemmabschnittclamping section
3232
Klemmstelleclamping point
3333
Kerbescore
3434
Käfigdeckenstegcage ceiling web
5050
Öffnungswerkzeugopening tool
5151
Werkzeugkopftool head
5252
Werkzeugansatztool approach
AA
eingezogener Bereichconfiscated area
xx
Leitereinschubrichtungconductor insertion direction

Claims (4)

  1. Assembly consisting of
    a caseless connecting terminal (10)
    - having a contact cage (11), which has a cage cover (12) and two side walls (14) adjoining the cage cover (12) on one side in each case, and a cage base (13), wherein cage cover (12), cage base (13) and side walls (14) are part of a cage shell,
    - having a spring element (25) which, together with a counter-bearing, forms a clamping point for holding and electrically contacting an electrical conductor,
    - having a conductor insertion opening (16) on one end face of the contact cage (11), which is arranged in front of the clamping point in conductor insertion direction x,
    - having two shell recesses (21) in the cage shell, which are formed mirror-inverted with respect to a cage longitudinal plane parallel to the side wall and which are each formed by an opening (22) of the cage cover (12) and which allow access to the spring element (25) in order to change its position relative to the counter-bearing in order to open the clamping point,
    - wherein the openings (22) in the cage cover (12) are spaced apart from a cage cover web (34) arranged between them,
    - wherein each opening (22) in the cage cover (12) merges into an aperture (23) in the side wall (14) adjacent to the opening (22),
    and a separate opening tool (50) for the connecting terminal (10);
    - which obtains direct or indirect access to the spring element (25) through the openings (22) in the cage cover (12),
    characterised in that
    - the opening tool (50) has two tool attachments (52) which are arranged at a distance from each other, are cylindrical in shape, are of the same design and are adapted in their cross-sectional contour to the openings (22) of the cage cover (12),
    - wherein the distance of the tool attachments (52) from each other enables the cage web (34) remaining between the cage cover openings (22) to be accommodated,
    - wherein the tool attachments (52) each have a circular cylindrical section, which, in the shell recess (21) of the connecting terminal (10), narrow a conductor receiving space in a seated manner and act in a guiding manner on a conductor to be inserted into the conductor-receiving space.
  2. Assembly according to one of the preceding claims,
    characterised in that
    the cage shell of the connecting terminal (10) forms a retaining contour (24) for the spring element (25), and the retaining contour (24) of the shell merges into the shell recess.
  3. Assembly according to claim 1,
    characterised in that
    the opening tool (50) has a movement end stop which limits the depth of immersion of the tool attachment (52) into the shell recess in order to prevent a damaging movement of the spring element (25) of the connecting terminal (10).
  4. Assembly according to claim 3,
    characterised in that
    the movement end stop of the opening tool (50) interacts with the cage cover (12) of the contact cage (11) of the connecting terminal (10).
EP20187947.5A 2019-09-26 2020-07-27 Terminal block Active EP3799212B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019125886.3A DE102019125886B4 (en) 2019-09-26 2019-09-26 Housing-free connection terminal with opening tool

Publications (2)

Publication Number Publication Date
EP3799212A1 EP3799212A1 (en) 2021-03-31
EP3799212B1 true EP3799212B1 (en) 2022-01-26

Family

ID=71833253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20187947.5A Active EP3799212B1 (en) 2019-09-26 2020-07-27 Terminal block

Country Status (5)

Country Link
US (1) US11145998B2 (en)
EP (1) EP3799212B1 (en)
CN (1) CN112563766B (en)
DE (1) DE102019125886B4 (en)
PL (1) PL3799212T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019125895B4 (en) * 2019-09-26 2021-06-10 Bjb Gmbh & Co. Kg Connection terminal with insertion funnel

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3000122B2 (en) * 1994-03-09 2000-01-17 矢崎総業株式会社 Connector insertion inspection jig
JP3211735B2 (en) * 1997-07-29 2001-09-25 住友電装株式会社 Female connector
JP2002313472A (en) * 2001-04-16 2002-10-25 Yazaki Corp Connector
US7351118B1 (en) * 2006-10-17 2008-04-01 Tyco Electronics Corporation Poke-in contacts for modular PCB assembly
US10141704B2 (en) * 2013-08-16 2018-11-27 Osram Sylvania Inc. Connector release tool
DE202014104939U1 (en) * 2014-10-16 2016-01-19 Electro Terminal Gmbh & Co Kg Terminal for the electrical connection of a conductor
DE102014119420B3 (en) * 2014-12-22 2016-05-12 Wago Verwaltungsgesellschaft Mbh terminal
DE202015103005U1 (en) * 2015-06-10 2016-09-14 Electro Terminal Gmbh & Co Kg Contact body and terminal with contact body for the electrical connection of a conductor
JP6537905B2 (en) * 2015-06-30 2019-07-03 日本航空電子工業株式会社 connector
DE102015115791B4 (en) * 2015-09-18 2017-05-04 Wago Verwaltungsgesellschaft Mbh Wire connecting terminal element
DE202015104961U1 (en) * 2015-09-18 2016-12-21 Wago Verwaltungsgesellschaft Mbh Wire connecting terminal element
DE102015122400B4 (en) * 2015-12-21 2020-01-16 Wago Verwaltungsgesellschaft Mbh Operating tool and set consisting of a PCB terminal block free of insulating material and operating tool as well as use and method
DE202017101148U1 (en) * 2017-03-01 2018-06-04 Wago Verwaltungsgesellschaft Mbh Wire connecting terminal element

Also Published As

Publication number Publication date
CN112563766A (en) 2021-03-26
EP3799212A1 (en) 2021-03-31
PL3799212T3 (en) 2022-08-22
US11145998B2 (en) 2021-10-12
DE102019125886A1 (en) 2021-04-01
US20210098902A1 (en) 2021-04-01
DE102019125886B4 (en) 2021-06-17
CN112563766B (en) 2022-08-09

Similar Documents

Publication Publication Date Title
DE19654611B4 (en) Spring clamp connection for electrical conductors
EP3625858B1 (en) Plug-type connector with insulation displacement contact
EP2797175B1 (en) Connector for a data and/or telecommunication cable comprising several wires
EP3223372B1 (en) Connector device
EP2856558B1 (en) Rj45 connector with guide device for conductors
EP3799212B1 (en) Terminal block
DE19936557C2 (en) Automatic insulation penetrating connection device
DE69906227T2 (en) Low profile filter connector with ferrite
DE10223271B4 (en) Connectors
DE102015108405B4 (en) connection
EP1523065B1 (en) Electrical terminal
BE1025720B1 (en) Connecting device and method for an electronics housing for connecting a conductor, in particular a shielding conductor
DE19937720C2 (en) Connection device with insulation penetrating slot for an electrical wire
DE4320539C2 (en) Line wire connector
EP3799211B1 (en) Connector terminal with insertion funnel
DE10065136C2 (en) Connection device and method for connecting a multi-core cable to a connector
EP1394827B1 (en) Switch device
DE102018121792B4 (en) Electrical socket
EP3855572A1 (en) Connecting terminal
DE202020100621U1 (en) Cross jumper and terminal arrangement
DE202019105332U1 (en) Housing-free connection terminal
DE60014346T2 (en) ELECTRICAL CABLE CONNECTION ARRANGEMENT WITH CUTTING CLAMP AND MOUNTING SPLICE
DE202009017572U1 (en) Device for contact-receiving a cable core
DE19635872B4 (en) Electrical connector
DE10328659A1 (en) Electrical connection arrangement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210407

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210610

RIC1 Information provided on ipc code assigned before grant

Ipc: H01R 4/48 20060101AFI20210729BHEP

Ipc: H01R 12/51 20110101ALN20210729BHEP

Ipc: H01R 43/22 20060101ALN20210729BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H01R 43/22 20060101ALN20210826BHEP

Ipc: H01R 12/51 20110101ALN20210826BHEP

Ipc: H01R 4/48 20060101AFI20210826BHEP

INTG Intention to grant announced

Effective date: 20210910

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1466001

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020000601

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220526

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220426

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220427

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220526

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502020000601

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20221027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220126

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220727

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220727

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20230629

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230731

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230727

Year of fee payment: 4

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL