WO2016079079A1 - Clamping component - Google Patents
Clamping component Download PDFInfo
- Publication number
- WO2016079079A1 WO2016079079A1 PCT/EP2015/076743 EP2015076743W WO2016079079A1 WO 2016079079 A1 WO2016079079 A1 WO 2016079079A1 EP 2015076743 W EP2015076743 W EP 2015076743W WO 2016079079 A1 WO2016079079 A1 WO 2016079079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- clamping
- body component
- contact element
- clamping body
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
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- 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
- H01R4/4846—Busbar details
-
- 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
- H01R4/4819—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 the spring shape allowing insertion of the conductor end when the spring is unbiased
- H01R4/4821—Single-blade spring
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- 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
- H01R4/4846—Busbar details
- H01R4/4852—Means for improving the contact with the conductor, e.g. uneven wire-receiving surface
-
- 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
Definitions
- the invention relates to a clamping body component for connecting an electrical conductor to a printed circuit board according to the preamble of claim 1.
- Such a clamp body component has at least one contact element which is integrally formed (for example punched out) from the material of the clamp body component and which serves for the electrical and, if appropriate, mechanical contacting of a printed circuit board, and an opening formed during the production (molding) of the contact element.
- a clamping member component in the form of a one-piece, made of a piece of spring ribbon material, loop-shaped electrical spring clamp which has a clamping leg and a plant leg. At the plant legs while means for electrical and mechanical connection of the spring terminal are formed with a circuit board. These means comprise a punched out of the plant leg of the spring terminal contact element in the form of a solder pin, which is angled from the plant leg. When punching out the solder pin from the spring terminal a corresponding with the contour of the solder pin opening (in particular in the form of a passage opening) is formed in the plant leg. If such a clamp body component is supplied as bulk material for further processing, snagging of clamp body components can occur in that the solder pin of a clamp body component penetrates into the corresponding opening in another clamp body component.
- a sprag member is described in the form of a current bar, which forms a multi-part spring terminal together with an associated clamping spring and a clamping spring and the current bar surrounded housing.
- At a first leg of the current bar are substantially perpendicular from two pins, which are integrally formed on each one end of said current bar leg.
- the invention is based on the problem of further improving a sprag component of the aforementioned type.
- the dimensions and the opening cross-section of the opening resulting in the clamping body component do not correspond to the dimensions of the contact element produced under the original formation of that opening, but are reduced in comparison, so that the contact element of a clamping body component that the contact element of another (identical) clamping body component (with identical dimensions) associated opening can not pass. A snagging of the sprag components is thereby avoided.
- the clamping body component on the boundary wall of the opening has at least one formation which reduces the cross section of the opening.
- a corresponding shaping can be provided on at least one of two opposite wall sections of the boundary wall of the opening to be reduced in cross-section (thus also on both wall sections), e.g. such that the opening tapers in the region of a respective shaping.
- a deformation of the clamping body component in the region of the opening, in order to reduce the cross section of the opening formed in this case after the production of the contact element, can be effected in particular by embossing or pressing.
- an insertion element is inserted into the opening to reduce the opening cross-section.
- This may be e.g. a substantially rigid (can be pressed into the opening) insert or act a spring-elastic component or to a curable, pasty filling material, such as an adhesive.
- the contact element is elongate (designed as a contact pin, eg soldering pin) and the corresponding opening in the clamping body component is accordingly also elongated (slot-shaped).
- the (slot-shaped) opening limiting longitudinal sides of the boundary wall is formed such that the opening is narrowed in the region of a molding.
- the contact element and the opening corresponding thereto may be formed on a base portion of the clamping body component which (via the contact element) the preparation of a connection with a circuit board is used.
- the clamp body member may further comprise a clamping portion for clamping a conductor to be connected to the printed circuit board.
- a sprag component, z. B. in the form of a current bar can be used, which forms one of several components of a multi-part clamp body, in particular in the form of a spring clamp.
- a multi-part clamping body in particular in the form of a spring-loaded terminal, with a clamping body component according to the invention is characterized by the features of claim 12.
- Advantageous developments of the clamp body arise from the dependent claims.
- Figure 1 is a perspective view of a first clamp body component in the form of a current bar and a second clamp body component in the form of a clamping spring, which are assembled to form a clamp body in the form of a spring clamp.
- FIG. 2 shows the two clamping body components from FIG. 1 in the assembled state
- Fig. 3 is a sectional view of the first clamping body component in the form of a
- FIGS. 1 and 2 shows a current bar according to FIGS. 1 and 2 together with slides for forming a shape on the current bar;
- FIG. 4B shows the current bar of FIG. 4A after formation of the shaping
- FIG. 5 shows a current bar according to Figure 1 and 2 with an insert for at least partially closing an opening of the current bar.
- FIG. 1 shows a metallic first clamping body component in the form of a current bar 1 (designed as a pressure piece) and a second clamping body component in the form of a clamping spring 2, which in the assembled state, as shown in FIG. 2, form a clamping body in the form of a spring-loaded terminal.
- a clamping body is used for clamping receiving an electrical conductor to connect via a contact element 140 of the clamping body with a circuit board and hereby to contact electrically.
- the first clamping body component in the form of the current bar 1 has a base portion 10 (formed in the embodiment by a base leg) and a clamping portion 15 (formed in the embodiment by another leg), which are interconnected via a connecting portion 18.
- the base portion 10 and the clamping portion 15 are opposite to each other, so that the current bar 1 is designed in cross-section substantially C-shaped.
- the geometry of the current bar 1 can be varied depending on the requirements in each case; For example, the current bar 1 could be L-shaped.
- the base portion 10 of the current bar 1 serves its (electrical and mechanical) connection with a printed circuit board.
- a contact element 140 is formed out of the base section 10 of the current bar, more precisely from its second section 12 merging into the connecting section 18.
- this is a contact pin (soldering pin), which tapers at its free end 141.
- the contact element 140 can be inserted into an opening provided therefor of a printed circuit board and connected by soldering to make an electrical contact with this.
- the contact element 140 has been formed out of the base section 10 of the current bar 1 to form an opening 14 (through-opening). This can be done for example by punching or Ausscheren of the contact element 140 of the material of the base portion 10, so that it is at the current bar 1 is a stamped and bent part. Due to the design of the contact element 140 as an elongate contact pin, the corresponding opening 14 formed in the production of the contact element 140 in the base section 10 of the current bar 1 is also elongate (formed as a slot-shaped opening).
- a projection 13 is arranged (integrally formed). Of the Projection 13 is spaced from the (slot-shaped) opening 14 in the base portion 10, in the embodiment along the longitudinal direction of the opening 14. The projection 13 faces from the base portion 10 in the direction of the opposite clamping portion 15 of the current bar. 1
- the two sections 1 1, 12 of the base portion 10 are in this case angled to form an obtuse angle to each other.
- the clamping portion 15 of the current bar 1 defines a clamping surface 16 which faces the base portion 10 of the current bar 1 in the embodiment and on which (by means of the clamping spring 2) an electrical conductor can be clamped to connect via the contact element 140 of the current bar 1 with a circuit board is.
- the clamping surface 16 is provided with a plurality of transverse recesses 16a, in the embodiment in the form of beads.
- the second clamping body in the form of a clamping spring 2 is configured such that it can be arranged in the space surrounded by the (C-shaped) first clamping body in the form of the current bar 1, as shown in FIG.
- the clamping spring 2 is supported on the one hand with a contact portion 20 (in the form of a support leg) on the base portion 10 of the current bar 1 and on the other hand with a clamping portion 25 (in the form of a clamping leg) on the clamping surface 16 of the current bar 1 a.
- the clamping spring 2 is present under bias on or taken in the current bar 1, which can be achieved by a corresponding dimensioning of the clamping spring 2 relative to the dimensions of the space surrounded by the current bar 1 space.
- the abutment portion 20 of the clamping spring 2 has two sections 21, 22, which are each associated with one of the two sections 1 1, 12 of the base section 10 of the current bar 1.
- the two sections 21, 22 of the clamping spring 2 are - as well as the associated sections 1 1, 12 of the current bar 1 - angled to form an obtuse angle to each other, so that when the arrangement of the clamping spring 2 within the space surrounded by the current bar 1 each of the two sections 21, 22 of the contact portion 20 of the clamping spring 2 is flat against a portion 1 1 and 12 of the base portion 10 of the current bar 1.
- the Clamping portion 25 of the clamping spring 2 has for this purpose at its free end 26 a clamping portion 26 a, in the embodiment in the form of a clamping edge, which presses against the clamping surface 16 under bias.
- the abutment portion 20 and the clamping portion 25 of the clamping spring 2 are connected to each other via a connecting portion 28 such that the clamping portion 25 (at an acute angle) inclined to the base portion 20 extends.
- the clamping spring 2 in the area enclosed by the current bar 1 space is therefore on the one hand, as described, the contact portion 20 flat on the base portion 10 of the pressure beam 1, while the clamping portion 25 at its free end 26 via the clamping portion 26a in the form of a clamping edge the clamping surface 16 of the current bar 1 acts.
- the clamping spring 2 is dimensioned such that it is slightly compressed between the clamping portion 15 and the base portion 10 of the current bar 1, whereby the bias voltage is generated, which holds the abutment portion 20 of the clamping spring 2 and the base portion 10 of the current bar 1 in Appendix.
- the clamping spring 2 and the current bar 1 are in the region of the clamping spring-side abutment portion 20 and the current bar side base portion 10 additionally positively engaged to ensure a reliable, permanent fixation under the action of the bias generated at the clamping spring 2.
- a (circular) mounting opening 23 is formed in the first section 21 of the contact section 20 of the clamping spring 2, which rests on the first section 1 1 of the base portion 10 of the current bar 1. In this engages the at the base portion 10 of the current bar 1, more precisely at the first portion 1 1, provided (cylindrical) projection 13, when the clamping spring 2, as shown in Figure 2, intended use in the current bar 1 is arranged.
- the engagement is advantageously substantially free of play.
- a projection in the form of a spring tongue 24 is arranged on the contact section 20 of the clamping spring 2, more precisely on the second section 22, which engages in the opening 14 formed in the base section 10 of the current bar 1 when the contact element 140 is formed.
- FIG. 3 shows a cross section through the current bar 1 from FIG. 1 in the region of the opening 14 corresponding to the contact element 140.
- This extends transversely to its longitudinal direction from a first, inner surface 10a of the base section 10 which faces the clamping section 15 and at which a spring element 2 rests with the abutment portion 20 at the intended arrangement, to the outer surface 10b of the base portion 10, which is the clamping portion 15 (and the clamping spring 2) facing away.
- this opening 14 would have a width b throughout which corresponds to the width b of the contact element 140 produced to form the opening 14 - which just causes the above-described problem of hooking the current bars 1.
- the cross section of the opening 14 is reduced by an embossing process (carried out after the production of the contact element 140).
- an embossing punch has acted on the inner surface 10a of the base section 10 in the region of the opening 14 there.
- a recess 3 is formed on both sides of the opening 14 on the inner surface 10a and the material removed when the recess is formed has been displaced against wall sections 14a, 14b of the lateral boundary wall of the opening 14 to produce a corresponding shaping or deformation 4a, 4b.
- the wall sections 14a, 14b taper along the wall thickness d, namely from the outer surface 10b of the base section 10 to the inner surface 10a of the wall Base section 10.
- the reduction of the cross section of the opening 14 in the base portion 10 of the current bar 1 does not necessarily have to be done by embossing, but other suitable forming or deformation techniques can be used for this purpose.
- pressing by means of slides (bending punches) acting laterally (in the opposite direction) on the current bar 1 is used as a deformation technique in order to reduce the cross section of the opening 14 in the base section 10 of the current bar 1 or, more precisely, the opening 14 by partially closing the lateral wall sections 14a, 14b.
- a respective lateral wall section 14a, 14b of the boundary wall of the opening 14 (on which each one of the slides S1, S2 has acted) has a formation 5a, 5b pointing in the direction of the opposite wall section 14b, 14a.
- the formation of the formations 5a, 5b can be carried out in a simple manner directly in the punching and bending tool, in which the current bar 1 is produced by bending in its shape shown in the figures and by punching out of the contact element 140. For this purpose, only correspondingly movable slides S1, S2 need to be provided on or in that tool.
- the final deformation of the current bar 1 does not have to, as shown in the exemplary embodiment, lead to a material deformation being present on two opposite lateral wall sections 14a, 14b of the boundary wall of the opening 14. Rather, it is basically sufficient to deform the material of the base section 10 only in the region of a lateral wall section 14a or 14b of the boundary wall of the opening 14 in such a way that the cross section of the opening 14 is thereby reduced. It is important that the material of the base portion 10 of the current bar 1 is formed in the region of the opening 14 (formed when the contact element 140 is formed) in order to reduce the opening cross-section and to prevent the contact element of a structurally identical current bar from penetrating.
- the opening 14 in the base section 10 of the current bar 1 is at least partially closed by insertion of an insertion element 6 and thus its Cross-section such (possibly down to zero) reduces that the penetration of the contact element of another, identical current bar is prevented.
- the insertion element 6 may be configured to be (as an insert) such that it is to be pressed into the opening 14 to form a press fit; or it may be fixed thereto by a bonding agent, in particular an adhesive.
- a filling compound to be introduced in pasty form, such as an adhesive can be used as the insertion element in order to reduce the opening cross section.
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
l l
Klemmkörperbauteil Terminal body member
Die Erfindung betrifft ein Klemmkörperbauteil zum Anschluss eines elektrischen Leiters an eine Leiterplatte nach dem Oberbegriff des Anspruchs 1. The invention relates to a clamping body component for connecting an electrical conductor to a printed circuit board according to the preamble of claim 1.
Ein derartiges Klemmkörperbauteil weist mindestens ein Kontaktelement auf, das einstückig aus dem Material des Klemmkörperbauteils geformt (z.B. herausgestanzt) ist und das zur elektrischen und gegebenenfalls mechanischen Kontaktierung einer Leiterplatte dient, sowie eine bei Erzeugung (Formung) des Kontaktelementes gebildete Öffnung. Such a clamp body component has at least one contact element which is integrally formed (for example punched out) from the material of the clamp body component and which serves for the electrical and, if appropriate, mechanical contacting of a printed circuit board, and an opening formed during the production (molding) of the contact element.
Aus der DE 101 53 170 C1 ist ein Klemmkörperbauteil in Form einer einteiligen, aus einem Stück Feder-Flachbandmaterial hergestellten, schlaufenförmigen elektrischen Federkraftklemme bekannt, die einen Klemmschenkel sowie einen Anlageschenkel aufweist. An dem Anlageschenkel sind dabei Mittel zur elektrischen und mechanischen Verbindung der Federkraftklemme mit einer Leiterplatte angeformt. Diese Mittel umfassen ein aus dem Anlageschenkel der Federkraftklemme herausgestanztes Kontaktelement in Form eines Lötstiftes, der von dem Anlageschenkel abgewinkelt ist. Beim Herausstanzen des Lötstiftes aus der Federkraftklemme wird in deren Anlageschenkel eine mit der Kontur des Lötstiftes korrespondierende Öffnung (insbesondere in Form einer Durchgangsöffnung) gebildet. Wird ein solches Klemmkörperbauteil als Schüttgut einer Weiterverarbeitung zugeführt, so kann es zu einem Verhaken von Klemmkörperbauteilen kommen, indem der Lötstift eines Klemmkörperbauteiles in die hiermit korrespondierende Öffnung in einem anderen Klemmkörperbauteiles eindringt. From DE 101 53 170 C1, a clamping member component in the form of a one-piece, made of a piece of spring ribbon material, loop-shaped electrical spring clamp is known, which has a clamping leg and a plant leg. At the plant legs while means for electrical and mechanical connection of the spring terminal are formed with a circuit board. These means comprise a punched out of the plant leg of the spring terminal contact element in the form of a solder pin, which is angled from the plant leg. When punching out the solder pin from the spring terminal a corresponding with the contour of the solder pin opening (in particular in the form of a passage opening) is formed in the plant leg. If such a clamp body component is supplied as bulk material for further processing, snagging of clamp body components can occur in that the solder pin of a clamp body component penetrates into the corresponding opening in another clamp body component.
In der DE 10 2005 048 972 B4 ist ein Klemmkörperbauteil in Form eines Strombalkens beschrieben, der zusammen mit einer zugeordneten Klemmfeder und einem die Klemmfeder sowie den Strombalken umgebenen Gehäuse eine mehrteilige Federkraftklemme bildet. An einem ersten Schenkel des Strombalkens stehen dabei im Wesentlichen senkrecht zwei Kontaktstifte ab, die einstückig an je einem Ende des besagten Strombalkenschenkels angeformt sind. In DE 10 2005 048 972 B4 a sprag member is described in the form of a current bar, which forms a multi-part spring terminal together with an associated clamping spring and a clamping spring and the current bar surrounded housing. At a first leg of the current bar are substantially perpendicular from two pins, which are integrally formed on each one end of said current bar leg.
Der Erfindung liegt das Problem zugrunde, ein Klemmkörperbauteil der eingangs genannten Art weiter zu verbessern. The invention is based on the problem of further improving a sprag component of the aforementioned type.
Dieses Problem wird erfindungsgemäß durch die Schaffung eines Klemmkörperbauteils mit den Merkmalen des Anspruchs 1 gelöst. Danach sind die Abmessungen der Öffnung des Klemmkörperbauteiles - verglichen mit einer allein durch bestimmungsgemäßes Herausformen des Kontaktelementes gebildeten Öffnung - reduziert. This problem is solved according to the invention by the creation of a sprag component with the features of claim 1. Thereafter, the dimensions of the opening of the clamping body component - compared with an opening formed solely by proper shaping of the contact element - reduced.
Somit korrespondieren die Abmessungen bzw. der Öffnungsquerschnitt der im Klemmkörperbauteil resultierenden Öffnung nicht mit den Abmessungen des unter ursprünglicher Bildung jener Öffnung erzeugten Kontaktelementes, sondern sind im Vergleich hierzu verkleinert, so dass das Kontaktelement eines Klemmkörperbauteils die dem Kontaktelement eines anderen (baugleichen) Klemmkörperbauteiles (mit identischen Abmessungen) zugehörige Öffnung nicht durchgreifen kann. Ein Verhaken der Klemmkörperbauteile wird hierdurch vermieden. Thus, the dimensions and the opening cross-section of the opening resulting in the clamping body component do not correspond to the dimensions of the contact element produced under the original formation of that opening, but are reduced in comparison, so that the contact element of a clamping body component that the contact element of another (identical) clamping body component (with identical dimensions) associated opening can not pass. A snagging of the sprag components is thereby avoided.
Gemäß einer Ausführungsform der Erfindung weist das Klemmkörperbauteil an der Begrenzungswand der Öffnung mindestens eine Ausformung auf, die den Querschnitt der Öffnung reduziert. Eine entsprechende Ausformung kann an mindestens einem von zwei einander gegenüberliegenden Wandabschnitten der Begrenzungswand der im Querschnitt zu reduzierenden Öffnung (also auch an beiden Wandabschnitten) vorgesehen sein, und zwar z.B. derart, dass sich die Öffnung im Bereich einer jeweiligen Ausformung verjüngt. Eine Verformung des Klemmkörperbauteils im Bereich der Öffnung, um nach der Erzeugung des Kontakteelementes den Querschnitt der hierbei gebildeten Öffnung zu reduzieren, kann dabei insbesondere durch Prägen oder Pressen erfolgen. According to one embodiment of the invention, the clamping body component on the boundary wall of the opening has at least one formation which reduces the cross section of the opening. A corresponding shaping can be provided on at least one of two opposite wall sections of the boundary wall of the opening to be reduced in cross-section (thus also on both wall sections), e.g. such that the opening tapers in the region of a respective shaping. A deformation of the clamping body component in the region of the opening, in order to reduce the cross section of the opening formed in this case after the production of the contact element, can be effected in particular by embossing or pressing.
Nach einer anderen Ausführungsform der Erfindung ist zur Reduzierung des Öffnungsquerschnittes ein Einsetzelement in die Öffnung eingefügt. Hierbei kann es sich z.B. um ein im Wesentlichen starres (in die Öffnung einpressbares) Einsetzstück oder um ein federelastisches Bauteil handeln oder auch um eine aushärtbare, pastöse Füllmasse, etwa ein Klebemittel. According to another embodiment of the invention, an insertion element is inserted into the opening to reduce the opening cross-section. This may be e.g. a substantially rigid (can be pressed into the opening) insert or act a spring-elastic component or to a curable, pasty filling material, such as an adhesive.
Gemäß einer Erfindungsvariante ist das Kontaktelement längserstreckt (als Kontaktstift, z. B. Lötstift) ausgeführt und die hiermit korrespondierende Öffnung in dem Klemmkörperbauteil dementsprechend ebenfalls längserstreckt (schlitzförmig) ausgebildet. In diesem Fall ist vorteilhaft mindestens eine der die (schlitzförmige) Öffnung begrenzenden Längsseiten der Begrenzungswand derart geformt, dass die Öffnung im Bereich einer Ausformung verengt ist. According to a variant of the invention, the contact element is elongate (designed as a contact pin, eg soldering pin) and the corresponding opening in the clamping body component is accordingly also elongated (slot-shaped). In this case, advantageously at least one of the (slot-shaped) opening limiting longitudinal sides of the boundary wall is formed such that the opening is narrowed in the region of a molding.
Das Kontaktelement und die hiermit korrespondierende Öffnung können an einem Basisabschnitt des Klemmkörperbauteiles ausgebildet sein, der (über das Kontaktelement) der Herstellung einer Verbindung mit einer Leiterplatte dient. Das Klemmkörperbauteil kann darüber hinaus einen Klemmabschnitt zum Festklemmen eines an die Leiterplatte anzuschließenden Leiters aufweisen. The contact element and the opening corresponding thereto may be formed on a base portion of the clamping body component which (via the contact element) the preparation of a connection with a circuit board is used. The clamp body member may further comprise a clamping portion for clamping a conductor to be connected to the printed circuit board.
Die erfindungsgemäße Lösung ist einerseits bei einem Klemmkörperbauteil, z. B. in Form eines Strombalkens, einsetzbar, das eine von mehreren Komponenten eines mehrteiligen Klemmkörpers, insbesondere in Form einer Federkraftklemme, bildet. The solution according to the invention is on the one hand in a sprag component, z. B. in the form of a current bar, can be used, which forms one of several components of a multi-part clamp body, in particular in the form of a spring clamp.
Ein mehrteiliger Klemmkörper, insbesondere in Form einer Federkraftklemme, mit einem erfindungsgemäßen Klemmkörperbauteil ist durch die Merkmale des Anspruchs 12 charakterisiert. Vorteilhafte Weiterbildungen des Klemmkörpers ergeben sich aus den hiervon abhängigen Ansprüchen. A multi-part clamping body, in particular in the form of a spring-loaded terminal, with a clamping body component according to the invention is characterized by the features of claim 12. Advantageous developments of the clamp body arise from the dependent claims.
Weitere Einzelheiten und Vorteile der Erfindung werden bei der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Figuren deutlich werden. Further details and advantages of the invention will become apparent in the following description of exemplary embodiments with reference to the figures.
Es zeigen: Show it:
Fig. 1 eine perspektivische Darstellung eines ersten Klemmkörperbauteiles in Form eines Strombalkens und eines zweiten Klemmkörperbauteiles in Form einer Klemmfeder, die zur Bildung eines Klemmkörpers in Form einer Federkraftklemme zusammenbaubar sind; Figure 1 is a perspective view of a first clamp body component in the form of a current bar and a second clamp body component in the form of a clamping spring, which are assembled to form a clamp body in the form of a spring clamp.
Fig. 2 die beiden Klemmkörperbauteile aus Figur 1 in zusammengebautem Zustand; FIG. 2 shows the two clamping body components from FIG. 1 in the assembled state; FIG.
Fig. 3 eine geschnittene Darstellung des ersten Klemmkörperbauteiles in Form eines Fig. 3 is a sectional view of the first clamping body component in the form of a
Strombalkens, zusammen mit einem weiteren Strombalken; Current bar, together with another current bar;
Fig. 4A einen Strombalken gemäß Figur 1 und 2 zusammen mit Schiebern zur Bildung einer Ausformung am Strombalken; 4A shows a current bar according to FIGS. 1 and 2 together with slides for forming a shape on the current bar;
Fig. 4B den Strombalken aus Figur 4A nach Bildung der Ausformung; FIG. 4B shows the current bar of FIG. 4A after formation of the shaping; FIG.
Figur 5 einen Strombalken gemäß Figur 1 und 2 mit einem Einsatzstück zum mindestens teilweisen Verschließen einer Öffnung des Strombalkens. Figur 1 zeigt ein metallisches erstes Klemmkörperbauteil in Form eines (als Druckstück ausgeführten) Strombalkens 1 sowie ein zweites Klemmkörperbauteil in Form einer Klemmfeder 2, die im zusammengebauten Zustand, wie in Figur 2 dargestellt, einen Klemmkörper in Form einer Federkraftklemme bilden. Ein derartiger Klemmkörper dient zur klemmenden Aufnahme eines elektrischen Leiters, um diesen über ein Kontaktelement 140 des Klemmkörpers mit einer Leiterplatte zu verbinden und hiermit elektrisch zu kontaktieren. 5 shows a current bar according to Figure 1 and 2 with an insert for at least partially closing an opening of the current bar. FIG. 1 shows a metallic first clamping body component in the form of a current bar 1 (designed as a pressure piece) and a second clamping body component in the form of a clamping spring 2, which in the assembled state, as shown in FIG. 2, form a clamping body in the form of a spring-loaded terminal. Such a clamping body is used for clamping receiving an electrical conductor to connect via a contact element 140 of the clamping body with a circuit board and hereby to contact electrically.
Das erste Klemmkörperbauteil in Form des Strombalkens 1 weist einen Basisabschnitt 10 (im Ausführungsbeispiel gebildet durch einen Basisschenkel) sowie einen Klemmabschnitt 15 (im Ausführungsbeispiel gebildet durch einen weiteren Schenkel) auf, die über einen Verbindungsabschnitt 18 miteinander verbunden sind. Dabei liegen der Basisabschnitt 10 und der Klemmabschnitt 15 einander gegenüber, so dass der Strombalken 1 im Querschnitt im Wesentlichen C-förmig ausgeführt ist. Die Geometrie des Strombalkens 1 kann je nach den Anforderungen im Einzelfall variiert werden; so könnte der Strombalken 1 beispielsweise L-förmig ausgeführt sein. The first clamping body component in the form of the current bar 1 has a base portion 10 (formed in the embodiment by a base leg) and a clamping portion 15 (formed in the embodiment by another leg), which are interconnected via a connecting portion 18. In this case, the base portion 10 and the clamping portion 15 are opposite to each other, so that the current bar 1 is designed in cross-section substantially C-shaped. The geometry of the current bar 1 can be varied depending on the requirements in each case; For example, the current bar 1 could be L-shaped.
Der Basisabschnitt 10 des Strombalkens 1 dient dessen (elektrischer und mechanischer) Verbindung mit einer Leiterplatte. Hierfür ist aus dem Basisabschnitt 10 des Strombalkens, genauer aus dessen in den Verbindungsabschnitt 18 übergehenden zweitem Teilabschnitt 12, ein Kontaktelement 140 herausgeformt. Hierbei handelt es sich im Ausführungsbeispiel um einen Kontaktstift (Lötstift), der sich an seinem freien Ende 141 verjüngt. Das Kontaktelement 140 kann in eine hierfür vorgesehene Öffnung einer Leiterplatte eingeführt und durch Löten unter Herstellung eines elektrischen Kontaktes mit dieser verbunden werden. The base portion 10 of the current bar 1 serves its (electrical and mechanical) connection with a printed circuit board. For this purpose, a contact element 140 is formed out of the base section 10 of the current bar, more precisely from its second section 12 merging into the connecting section 18. In the exemplary embodiment, this is a contact pin (soldering pin), which tapers at its free end 141. The contact element 140 can be inserted into an opening provided therefor of a printed circuit board and connected by soldering to make an electrical contact with this.
Das Kontaktelement 140 ist aus dem Basisabschnitt 10 des Strombalkens 1 unter Bildung einer Öffnung 14 (Durchgangsöffnung) herausgeformt worden. Dies kann beispielsweise durch ein Ausstanzen bzw. Ausscheren des Kontaktelementes 140 aus dem Material des Basisabschnittes 10 erfolgen, so dass es sich bei dem Strombalken 1 um ein Stanz-Biege- Teil handelt. Aufgrund der Ausführung des Kontaktelementes 140 als ein längserstreckter Kontaktstift ist die hiermit korrespondierende, bei Herstellung des Kontaktelementes 140 gebildete Öffnung 14 in dem Basisabschnitt 10 des Strombalkens 1 ebenfalls längserstreckt (als eine schlitzförmige Öffnung) ausgebildet. The contact element 140 has been formed out of the base section 10 of the current bar 1 to form an opening 14 (through-opening). This can be done for example by punching or Ausscheren of the contact element 140 of the material of the base portion 10, so that it is at the current bar 1 is a stamped and bent part. Due to the design of the contact element 140 as an elongate contact pin, the corresponding opening 14 formed in the production of the contact element 140 in the base section 10 of the current bar 1 is also elongate (formed as a slot-shaped opening).
An einem sich an den mit dem Kontaktelement 140 und der Öffnung 14 versehenen zweiten Teilabschnitt 12 anschließenden ersten Teilabschnitt 1 1 des Basisabschnittes 10, welcher zugleich dessen freies Ende bildet, ist ein Vorsprung 13 angeordnet (einstückig geformt). Der Vorsprung 13 ist von der (schlitzförmigen) Öffnung 14 im Basisabschnitt 10 beabstandet, und zwar im Ausführungsbeispiel entlang der Längsrichtung der Öffnung 14. Der Vorsprung 13 weist von dem Basisabschnitt 10 in Richtung auf den gegenüberliegenden Klemmabschnitt 15 des Strombalkens 1 . Die beiden Teilabschnitte 1 1 , 12 des Basisabschnittes 10 sind vorliegend unter Bildung eines stumpfen Winkels zueinander abgewinkelt. At one on the provided with the contact element 140 and the opening 14 second portion 12 subsequent first portion 1 1 of the base portion 10, which also forms its free end, a projection 13 is arranged (integrally formed). Of the Projection 13 is spaced from the (slot-shaped) opening 14 in the base portion 10, in the embodiment along the longitudinal direction of the opening 14. The projection 13 faces from the base portion 10 in the direction of the opposite clamping portion 15 of the current bar. 1 The two sections 1 1, 12 of the base portion 10 are in this case angled to form an obtuse angle to each other.
Der Klemmabschnitt 15 des Strombalkens 1 definiert eine Klemmfläche 16, welche im Ausführungsbeispiel dem Basisabschnitt 10 des Strombalkens 1 zugewandt ist und an welcher (mittels der Klemmfeder 2) ein elektrischer Leiter festklemmbar ist, der über das Kontaktelement 140 des Strombalkens 1 mit einer Leiterplatte zu verbinden ist. Die Klemmfläche 16 ist dabei mit einer Mehrzahl quer verlaufender Aussparungen 16a, im Ausführungsbeispiel in Form von Sicken, versehen. The clamping portion 15 of the current bar 1 defines a clamping surface 16 which faces the base portion 10 of the current bar 1 in the embodiment and on which (by means of the clamping spring 2) an electrical conductor can be clamped to connect via the contact element 140 of the current bar 1 with a circuit board is. The clamping surface 16 is provided with a plurality of transverse recesses 16a, in the embodiment in the form of beads.
Der zweite Klemmkörper in Form einer Klemmfeder 2 ist derart ausgestaltet, dass er sich in dem vom (C-förmigen) ersten Klemmkörper in Form des Strombalkens 1 umgebenen Raum anordnen lässt, wie in Figur 2 gezeigt. Dabei stützt sich die Klemmfeder 2 einerseits mit einem Anlageabschnitt 20 (in Form eines Anlageschenkels) am Basisabschnitt 10 des Strombalkens 1 ab und wirkt andererseits mit einem Klemmabschnitt 25 (in Form eines Klemmschenkels) auf die Klemmfläche 16 des Strombalkens 1 ein. Die Klemmfeder 2 ist vorliegend unter Vorspannung an bzw. in dem Strombalken 1 aufgenommen, was sich durch eine entsprechende Dimensionierung der Klemmfeder 2 bezogen auf die Abmessungen des von dem Strombalken 1 umgebenen Raumes erreichen lässt. The second clamping body in the form of a clamping spring 2 is configured such that it can be arranged in the space surrounded by the (C-shaped) first clamping body in the form of the current bar 1, as shown in FIG. In this case, the clamping spring 2 is supported on the one hand with a contact portion 20 (in the form of a support leg) on the base portion 10 of the current bar 1 and on the other hand with a clamping portion 25 (in the form of a clamping leg) on the clamping surface 16 of the current bar 1 a. The clamping spring 2 is present under bias on or taken in the current bar 1, which can be achieved by a corresponding dimensioning of the clamping spring 2 relative to the dimensions of the space surrounded by the current bar 1 space.
Der Anlageabschnitt 20 der Klemmfeder 2 weist zwei Teilabschnitte 21 , 22 auf, die jeweils einem der beiden Teilabschnitte 1 1 , 12 des Basisabschnittes 10 des Strombalkens 1 zugeordnet sind. Die beiden Teilabschnitte 21 , 22 der Klemmfeder 2 sind dabei - wie auch die zugeordneten Teilabschnitte 1 1 , 12 des Strombalkens 1 - unter Bildung eines stumpfen Winkels zueinander abgewinkelt, so dass bei bestimmungsgemäßer Anordnung der Klemmfeder 2 innerhalb des vom Strombalken 1 umgebenen Raumes jeder der beiden Teilabschnitte 21 , 22 des Anlageabschnittes 20 der Klemmfeder 2 flächig an einem Teilabschnitt 1 1 bzw. 12 des Basisabschnittes 10 des Strombalkens 1 anliegt. The abutment portion 20 of the clamping spring 2 has two sections 21, 22, which are each associated with one of the two sections 1 1, 12 of the base section 10 of the current bar 1. The two sections 21, 22 of the clamping spring 2 are - as well as the associated sections 1 1, 12 of the current bar 1 - angled to form an obtuse angle to each other, so that when the arrangement of the clamping spring 2 within the space surrounded by the current bar 1 each of the two sections 21, 22 of the contact portion 20 of the clamping spring 2 is flat against a portion 1 1 and 12 of the base portion 10 of the current bar 1.
Ferner stützt sich bei bestimmungsgemäßer Anordnung der Klemmfeder 2 am Strombalken 1 der Klemmabschnitt 25 der Klemmfeder 1 am Klemmabschnitt 15 des Strombalkens 1 , bzw. genauer an dessen Klemmfläche 16, ab, so dass hierbei gleichzeitig der (dem Klemmabschnitt 25 gegenüberliegende) Anlageabschnitt 20 der Klemmfeder 2 (unter Vorspannung) flächig gegen den Basisabschnitt 10 des Strombalkens 1 gedrückt wird. Der Klemmabschnitt 25 der Klemmfeder 2 weist hierfür an seinem freien Ende 26 einen Klemmbereich 26a, im Ausführungsbeispiel in Form einer Klemmkante, auf, der unter Vorspannung gegen die Klemmfläche 16 drückt. Further, in accordance with the intended arrangement of the clamping spring 2 at the current bar 1, the clamping portion 25 of the clamping spring 1 on the clamping portion 15 of the current bar 1, or more precisely on the clamping surface 16, from, so that in this case the (the clamping portion 25 opposite) contact portion 20 of the clamping spring 2 (under bias) is pressed flat against the base portion 10 of the current bar 1. Of the Clamping portion 25 of the clamping spring 2 has for this purpose at its free end 26 a clamping portion 26 a, in the embodiment in the form of a clamping edge, which presses against the clamping surface 16 under bias.
Um die Klemmfeder 2 in der vorstehend beschriebenen Art und Weise unter Vorspannung in dem Strombalken 1 anordnen zu können, sind der Anlageabschnitt 20 und der Klemmabschnitt 25 der Klemmfeder 2 über einen Verbindungsabschnitt 28 derart miteinander verbunden, dass der Klemmabschnitt 25 (unter einem spitzen Winkel) geneigt zum Basisabschnitt 20 verläuft. Beim bestimmungsgemäßen Anordnen der Klemmfeder 2 in dem vom Strombalken 1 umschlossenen Raum liegt daher einerseits, wie beschrieben, der Anlageabschnitt 20 flächig am Basisabschnitt 10 des Druckbalkens 1 an, während der Klemmabschnitt 25 an seinem freien Ende 26 über den Klemmbereich 26a in Form einer Klemmkante auf die Klemmfläche 16 des Strombalkens 1 einwirkt. Die Klemmfeder 2 ist dabei derart dimensioniert, dass sie zwischen dem Klemmabschnitt 15 und dem Basisabschnitt 10 des Strombalkens 1 etwas zusammengedrückt wird, wodurch die Vorspannung erzeugt wird, welche den Anlageabschnitt 20 der Klemmfeder 2 und den Basisabschnitt 10 des Strombalkens 1 in Anlage hält. In order to arrange the clamping spring 2 in the manner described above under bias in the current bar 1, the abutment portion 20 and the clamping portion 25 of the clamping spring 2 are connected to each other via a connecting portion 28 such that the clamping portion 25 (at an acute angle) inclined to the base portion 20 extends. When properly arranged, the clamping spring 2 in the area enclosed by the current bar 1 space is therefore on the one hand, as described, the contact portion 20 flat on the base portion 10 of the pressure beam 1, while the clamping portion 25 at its free end 26 via the clamping portion 26a in the form of a clamping edge the clamping surface 16 of the current bar 1 acts. The clamping spring 2 is dimensioned such that it is slightly compressed between the clamping portion 15 and the base portion 10 of the current bar 1, whereby the bias voltage is generated, which holds the abutment portion 20 of the clamping spring 2 and the base portion 10 of the current bar 1 in Appendix.
Die Klemmfeder 2 und der Strombalken 1 sind dabei im Bereich des klemmfederseitigen Anlageabschnittes 20 und des strombalkenseitigen Basisabschnittes 10 zusätzlich formschlüssig in Eingriff, um eine zuverlässige, dauerhafte Fixierung unter der Wirkung der an der Klemmfeder 2 erzeugten Vorspannung zu gewährleisten. Hierzu ist im ersten Teilabschnitt 21 des Anlageabschnittes 20 der Klemmfeder 2, welcher am ersten Teilabschnitt 1 1 des Basisabschnittes 10 des Strombalkens 1 anliegt, eine (kreisrunde) Befestigungsöffnung 23 ausgebildet. In diese greift der am Basisabschnitt 10 des Strombalkens 1 , genauer an dessen erstem Teilabschnitt 1 1 , vorgesehene (zylindrische) Vorsprung 13 ein, wenn die Klemmfeder 2, wie in Figur 2 gezeigt, bestimmungsgemäß im Strombalken 1 angeordnet ist. Der Eingriff erfolgt vorteilhaft im Wesentlichen spielfrei. The clamping spring 2 and the current bar 1 are in the region of the clamping spring-side abutment portion 20 and the current bar side base portion 10 additionally positively engaged to ensure a reliable, permanent fixation under the action of the bias generated at the clamping spring 2. For this purpose, a (circular) mounting opening 23 is formed in the first section 21 of the contact section 20 of the clamping spring 2, which rests on the first section 1 1 of the base portion 10 of the current bar 1. In this engages the at the base portion 10 of the current bar 1, more precisely at the first portion 1 1, provided (cylindrical) projection 13, when the clamping spring 2, as shown in Figure 2, intended use in the current bar 1 is arranged. The engagement is advantageously substantially free of play.
Zur Verdrehsicherung ist dabei am Anlageabschnitt 20 der Klemmfeder 2, genauer an dessen zweitem Teilabschnitt 22, ein Vorsprung in Form einer Federzunge 24 angeordnet, der in die bei Formung des Kontaktelementes 140 im Basisabschnitt 10 des Strombalkens 1 gebildete Öffnung 14 eingreift. Hierdurch greifen die Klemmfeder 2 und der Strombalken 1 (im Bereich des Anlageabschnittes 20 und des Basisabschnittes 10) an zwei voneinander beabstandeten Befestigungsstellen 13, 23 und 14, 24 jeweils formschlüssig ineinander. Damit wird ein Verdrehen der (unter Vorspannung im Strombalken 1 angeordneten) Klemmfeder 2 relativ zu dem Strombalken 1 zuverlässig verhindert. Für eine einfache Montage weist dabei die der Federzunge 24 zugeordnete Öffnung 14 in Längsrichtung der Öffnung eine größere Ausdehnung auf als die Federzunge 24 selbst. To prevent rotation, a projection in the form of a spring tongue 24 is arranged on the contact section 20 of the clamping spring 2, more precisely on the second section 22, which engages in the opening 14 formed in the base section 10 of the current bar 1 when the contact element 140 is formed. As a result, the clamping spring 2 and the current bar 1 (in the region of the abutment portion 20 and the base portion 10) at two spaced attachment points 13, 23 and 14, 24 each interlocking manner. Thus, a twisting of (arranged under bias in the current bar 1) clamping spring 2 relative to the current bar 1 is reliably prevented. For a simple Assembly has the spring tongue 24 associated opening 14 in the longitudinal direction of the opening a greater extent than the spring tongue 24 itself.
Zum Zusammenbau des in Figur 2 gezeigten Klemmkörpers in Form einer Federkraftklemme aus den beiden in Figur 1 gezeigten Klemmkörperbauteilen in Form eines Strombalkens 1 und einer Klemmfeder 2 werden letztere dem Montageplatz regelmäßig als Schüttgut zugeführt. Hierbei soll vorliegend verhindert werden, dass sich die als Schüttgut vorliegenden Strombalken 1 ineinander verhaken, indem der Kontaktstift 140 eines Strombalkens 1 in die mit dem Kontaktstift korrespondierende Öffnung 14 eines anderen Strombalkens eingreift. Hierzu ist vorgesehen, die mit dem Kontaktelement 140 an einem jeweiligen Strombalken 1 korrespondierende (und bei Erzeugung des Kontaktelementes gebildete) Öffnung 14 hinsichtlich ihres Öffnungsquerschnittes so zu reduzieren, dass das Kontaktelement 140 an einem Strombalken 1 nicht mehr in die mit dem Kontaktelement an einem anderen Strombalken korrespondierende Öffnung 14 eingreifen kann. Dies ist in Figur 3 dargestellt. For assembling the clamping body shown in Figure 2 in the form of a spring clamp from the two clamping body components shown in Figure 1 in the form of a current bar 1 and a clamping spring 2 the latter are regularly fed to the assembly site as bulk material. This is to be prevented in the present case that the present as bulk current bars 1 interlock with each other by the contact pin 140 of a current bar 1 engages in the contact pin corresponding opening 14 of another current bar. For this purpose, it is provided that with the contact element 140 on a respective current bar 1 corresponding (and formed upon generation of the contact element) opening 14 with respect to their opening cross section to reduce so that the contact element 140 on a current bar 1 no longer in the contact with the element at another Current bar corresponding opening 14 can intervene. This is shown in FIG.
Figur 3 zeigt einen Querschnitt durch den Strombalken 1 aus Figur 1 im Bereich der mit dem Kontaktelement 140 korrespondierenden Öffnung 14. Diese erstreckt sich - quer zu ihrer Längsrichtung - von einer ersten, inneren Oberfläche 10a des Basisabschnittes 10, welche dem Klemmabschnitt 15 zugewandt ist und an welcher bei bestimmungsgemäßer Anordnung ein Federelement 2 mit dem Anlageabschnitt 20 anliegt, zur außenliegenden Oberfläche 10b des Basisabschnittes 10, welche dem Klemmabschnitt 15 (sowie der Klemmfeder 2) abgewandt ist. Ohne zusätzliche Verformung hätte diese Öffnung 14 durchgängig eine Breite b, die der Breite b des unter Bildung der Öffnung 14 erzeugten Kontaktelementes140 entspricht - was gerade die vorstehend erläuterte Problematik des Verhakens der Strombalken 1 bedingt. FIG. 3 shows a cross section through the current bar 1 from FIG. 1 in the region of the opening 14 corresponding to the contact element 140. This extends transversely to its longitudinal direction from a first, inner surface 10a of the base section 10 which faces the clamping section 15 and at which a spring element 2 rests with the abutment portion 20 at the intended arrangement, to the outer surface 10b of the base portion 10, which is the clamping portion 15 (and the clamping spring 2) facing away. Without additional deformation, this opening 14 would have a width b throughout which corresponds to the width b of the contact element 140 produced to form the opening 14 - which just causes the above-described problem of hooking the current bars 1.
Vorliegend ist der Querschnitt der Öffnung 14 durch einen (im Anschluss an die Erzeugung des Kontaktelementes 140 vorgenommenen) Prägevorgang reduziert. Wie anhand Figur 3 erkennbar, hat auf die innenliegende Oberfläche 10a des Basisabschnittes 10 im Bereich der dortigen Öffnung 14 ein Prägestempel eingewirkt. Hierdurch ist an der innenliegenden Oberfläche 10a beidseits der Öffnung 14 eine Ausnehmung 3 gebildet und das bei Bildung jener Ausnehmung weggenommene Material - unter Erzeugung einer entsprechenden Ausformung bzw. Verformung 4a, 4b - an Wandabschnitte 14a, 14b der seitlichen Begrenzungswand der Öffnung 14 verschoben worden. Hierdurch verjüngen sich die Wandabschnitte 14a, 14b entlang der Wanddicke d, nämlich von der außenliegenden Oberfläche 10b des Basisabschnittes 10 zur innenliegenden Oberfläche 10a des Basisabschnittes 10. Durch die hiermit verbundene Reduzierung des Querschnittes der Öffnung 14 kann - wie in Figur 3 gezeigt - das Kontaktelement 140' eines (baugleichen) anderen Strombalkens V nicht mehr substantiell in die Öffnung 14 eindringen und jene insbesondere nicht mehr vollständig durchgreifen, so dass ein Verhaken der Strombalken 1 , V vermieden wird. In the present case, the cross section of the opening 14 is reduced by an embossing process (carried out after the production of the contact element 140). As can be seen with reference to FIG. 3, an embossing punch has acted on the inner surface 10a of the base section 10 in the region of the opening 14 there. As a result, a recess 3 is formed on both sides of the opening 14 on the inner surface 10a and the material removed when the recess is formed has been displaced against wall sections 14a, 14b of the lateral boundary wall of the opening 14 to produce a corresponding shaping or deformation 4a, 4b. As a result, the wall sections 14a, 14b taper along the wall thickness d, namely from the outer surface 10b of the base section 10 to the inner surface 10a of the wall Base section 10. By the associated reduction of the cross section of the opening 14 can - as shown in Figure 3 - the contact element 140 'of a (identical) other current bar V no longer substantially penetrate into the opening 14 and those particular no longer completely reach through, so that snagging the current bars 1, V is avoided.
Die Reduzierung des Querschnittes der Öffnung 14 im Basisabschnitt 10 des Strombalkens 1 muss dabei nicht zwingend durch Prägen erfolgen, sondern es können hierfür auch andere geeignete Umform- bzw. Verformungstechniken genutzt werden. So wird gemäß den Figuren 4A und 4B das Pressen mittels seitlich (in entgegengesetzter Richtung) auf den Strombalken 1 einwirkender Schieber (Biegestempel) als Verformungstechnik genutzt, um den Querschnitt der Öffnung 14 im Basisabschnitt 10 des Strombalkens 1 zu reduzieren bzw. genauer die Öffnung 14 durch Verbiegen der seitlichen Wandabschnitte 14a, 14b teilweise zu verschließen. Im Ergebnis weist ein jeweiliger seitlicher Wandabschnitt 14a, 14b der Begrenzungswand der Öffnung 14 (auf welchen je einer der Schieber S1 , S2 eingewirkt hat) eine in Richtung auf den gegenüberliegenden Wandabschnitt 14b, 14a weisende Ausformung 5a, 5b auf. Hierdurch sind die Abmessungen der Öffnung 14 derart reduziert, dass das Kontaktelement eines anderen, baugleichen Strombalkens nicht mehr substantiell in diese eindringen kann. Die Bildung der Ausformungen 5a, 5b kann dabei in einfacher Weise unmittelbar in dem Stanz-Biege-Werkzeug erfolgen, in welchem der Strombalken 1 durch Biegen in seine in den Figuren gezeigte Form und durch Herausstanzen des Kontaktelementes 140 hergestellt wird. Hierzu müssen lediglich an bzw. in jenem Werkzeug zusätzlich entsprechend verfahrbare Schieber S1 , S2 vorgesehen sein. The reduction of the cross section of the opening 14 in the base portion 10 of the current bar 1 does not necessarily have to be done by embossing, but other suitable forming or deformation techniques can be used for this purpose. Thus, according to FIGS. 4A and 4B, pressing by means of slides (bending punches) acting laterally (in the opposite direction) on the current bar 1 is used as a deformation technique in order to reduce the cross section of the opening 14 in the base section 10 of the current bar 1 or, more precisely, the opening 14 by partially closing the lateral wall sections 14a, 14b. As a result, a respective lateral wall section 14a, 14b of the boundary wall of the opening 14 (on which each one of the slides S1, S2 has acted) has a formation 5a, 5b pointing in the direction of the opposite wall section 14b, 14a. As a result, the dimensions of the opening 14 are reduced so that the contact element of another, identical current bar can no longer substantially penetrate into this. The formation of the formations 5a, 5b can be carried out in a simple manner directly in the punching and bending tool, in which the current bar 1 is produced by bending in its shape shown in the figures and by punching out of the contact element 140. For this purpose, only correspondingly movable slides S1, S2 need to be provided on or in that tool.
Weiterhin muss die abschließende Umformung des Strombalkens 1 nicht, wie im Ausführungsbeispiel gezeigt, dazu führen, dass an zwei gegenüberliegenden seitlichen Wandabschnitten 14a, 14b der Begrenzungswand der Öffnung 14 jeweils eine Materialverformung vorliegt. Vielmehr ist es grundsätzlich ausreichend, das Material des Basisabschnittes 10 lediglich im Bereich eines seitlichen Wandabschnittes 14a oder 14b Begrenzungswand der Öffnung 14 derart zu verformen, dass hierdurch der Querschnitt der Öffnung 14 reduziert wird. Von Bedeutung ist, dass das Material des Basisabschnittes 10 des Strombalkens 1 im Bereich der (bei Erzeugung des Kontaktelementes 140 gebildeten) Öffnung 14 geformt ist, um den Öffnungsquerschnitt zu reduzieren und das Eindringen des Kontaktelementes eines baugleichen Strombalkens zu verhindern. Furthermore, the final deformation of the current bar 1 does not have to, as shown in the exemplary embodiment, lead to a material deformation being present on two opposite lateral wall sections 14a, 14b of the boundary wall of the opening 14. Rather, it is basically sufficient to deform the material of the base section 10 only in the region of a lateral wall section 14a or 14b of the boundary wall of the opening 14 in such a way that the cross section of the opening 14 is thereby reduced. It is important that the material of the base portion 10 of the current bar 1 is formed in the region of the opening 14 (formed when the contact element 140 is formed) in order to reduce the opening cross-section and to prevent the contact element of a structurally identical current bar from penetrating.
Gemäß Figur 5 wird die Öffnung 14 im Basisabschnitt 10 des Strombalkens 1 durch Einfügen eines Einsetzelementes 6 zumindest teilweise verschlossen und so deren Querschnitt derart (ggf. bis auf Null) reduziert, dass das Eindringen des Kontaktelementes eines anderen, baugleichen Strombalkens verhindert wird. Das Einsetzelement 6 kann beispielsweise derart (als ein Einsetzstück) ausgeführt sein, dass es unter Bildung einer Presspassung in die Öffnung 14 einzupressen ist; oder es kann daran durch ein Verbindungsmittel, insbesondere ein Klebemittel, fixiert werden. Alternativ kann z.B. eine in pastöser Form einzubringende Füllmasse, wie etwa ein Klebstoff, als Einsetzelement verwendet werden, um den Öffnungsquerschnitt zu reduzieren. According to FIG. 5, the opening 14 in the base section 10 of the current bar 1 is at least partially closed by insertion of an insertion element 6 and thus its Cross-section such (possibly down to zero) reduces that the penetration of the contact element of another, identical current bar is prevented. For example, the insertion element 6 may be configured to be (as an insert) such that it is to be pressed into the opening 14 to form a press fit; or it may be fixed thereto by a bonding agent, in particular an adhesive. Alternatively, for example, a filling compound to be introduced in pasty form, such as an adhesive, can be used as the insertion element in order to reduce the opening cross section.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Klemmkörperbauteil (Strombalken) 1 sprag component (current bar)
10 Basisabschnitt (Basisschenkel) 10 base section (base leg)
10a Innere Oberfläche 10a inside surface
10b Äußere Oberfläche 10b External surface
1 1 Erster Teilabschnitt 1 1 First Part
12 Zweiter Teilabschnitt 12 Second Part
13 Vorsprung 13 lead
14 Öffnung 14 opening
14a Wandabschnitt (Abschnitt der seitlichen Begrenzungswand) 14a wall section (section of the lateral boundary wall)
14b Wandabschnitt (Abschnitt der seitlichen Begrenzungswand)14b wall section (section of the lateral boundary wall)
140 Kontaktelement (Kontaktstift) 140 contact element (contact pin)
141 Freies Ende 141 Free end
15 Klemmabschnitt (Klemmschenkel) 15 clamping section (clamping leg)
16 Klemmfläche 16 clamping surface
16a Aussparung (Sicke) 16a recess (beading)
18 Verbindungsabschnitt 18 connection section
2 Klemmkörperbauteil (Klemmfeder) 2 sprag component (clamping spring)
20 Anlageabschnitt (Anlageschenkel) 20 contact section (plant leg)
21 Erster Teilabschnitt 21 First Part
22 Zweiter Teilabschnitt 22 Second Part
23 Öffnung 23 opening
24 Vorsprung (Federzunge) 24 projection (spring tongue)
25 Klemmabschnitt (Klemmschenkel) 25 clamping section (clamping leg)
26 Freies Ende 26 Free end
26a Klemmbereich (Klemmkante) 26a clamping area (clamping edge)
28 Verbindungsabschnitt 28 connecting section
3 Ausnehmung 3 recess
4a Ausformung 4a molding
4b Ausformung 4b shaping
5a Ausformung 5a molding
5b Ausformung 5b shaping
6 Einsetzelement 6 insertion element
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014117064.4A DE102014117064A1 (en) | 2014-11-21 | 2014-11-21 | Terminal body member |
| DE102014117064.4 | 2014-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016079079A1 true WO2016079079A1 (en) | 2016-05-26 |
Family
ID=54545153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/076743 Ceased WO2016079079A1 (en) | 2014-11-21 | 2015-11-17 | Clamping component |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102014117064A1 (en) |
| WO (1) | WO2016079079A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012110895A1 (en) * | 2012-11-13 | 2014-05-15 | Wago Verwaltungsgesellschaft Mbh | terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10153170C1 (en) | 2001-10-27 | 2003-02-20 | Phoenix Contact Gmbh & Co | Electrical spring clamp for connecting electrical conductor with printed circuit board has bearing arm provided with integral solder pins for direct mounting on latter |
| DE102005048972B4 (en) | 2005-10-13 | 2010-08-12 | Phoenix Contact Gmbh & Co. Kg | Spring terminal with clamping spring and current bar |
-
2014
- 2014-11-21 DE DE102014117064.4A patent/DE102014117064A1/en not_active Withdrawn
-
2015
- 2015-11-17 WO PCT/EP2015/076743 patent/WO2016079079A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012110895A1 (en) * | 2012-11-13 | 2014-05-15 | Wago Verwaltungsgesellschaft Mbh | terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014117064A1 (en) | 2016-05-25 |
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