EP2381536B1 - Pinces de contact et connexion dotée de pinces de contact - Google Patents

Pinces de contact et connexion dotée de pinces de contact Download PDF

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Publication number
EP2381536B1
EP2381536B1 EP11005784.1A EP11005784A EP2381536B1 EP 2381536 B1 EP2381536 B1 EP 2381536B1 EP 11005784 A EP11005784 A EP 11005784A EP 2381536 B1 EP2381536 B1 EP 2381536B1
Authority
EP
European Patent Office
Prior art keywords
contact
clamping
clamp
spring
leg
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
EP11005784.1A
Other languages
German (de)
English (en)
Other versions
EP2381536A2 (fr
EP2381536A3 (fr
Inventor
Stefan Giefers
Mehmet Sagdic
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact 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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2381536A2 publication Critical patent/EP2381536A2/fr
Publication of EP2381536A3 publication Critical patent/EP2381536A3/fr
Application granted granted Critical
Publication of EP2381536B1 publication Critical patent/EP2381536B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/22—End pieces terminating in a spring clip
    • H01R11/24—End pieces terminating in a spring clip with gripping jaws, e.g. crocodile clip
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/22—End pieces terminating in a spring clip
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • 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

Definitions

  • the invention relates to a contact terminal, which can be opened and closed by means of a movable to a mating contact clamping spring and a connector with the contact terminal, in particular for connecting photovoltaic modules.
  • Single pole waterproof connectors especially for applications in the photovoltaic industry, are typically provided with an electrical lead by crimping the lead to a contactor. Crimping requires a special tool to make the crimped connection. Furthermore, a crimped connection after it has been manufactured is no longer detachable.
  • the bending spring here is relatively complex shaped and it must be used in any case, a relatively high force to close the clamp.
  • the load arm is relatively long and the clamp is relatively large and unwieldy.
  • Another disadvantage is that the conductor end can be inserted only when the contact terminal is open.
  • an acting in the opening direction of the force component on the load arm which requires a high preload or can affect the contact safety.
  • the terminal is prepared for mounting on a busbar and not suitable for a single contact.
  • a contact element and a terminal box for electrical conductors in which by insertion or insertion of the conductor, a first leg of a spring element performs a rotational movement.
  • the nip is relieved by pressure on the first leg, for example by means of an associated with the surrounding insulating housing actuator.
  • the discharge of the terminal point and thus a release of the conductor can be done unintentionally, for example, if accidentally pressed on the actuator.
  • the force and tension conditions do not seem optimal and the clamping force is not particularly great.
  • the terminal appears structurally unsuitable for some applications, in particular with regard to contact safety.
  • an object of the invention to provide an openable contact terminal for the free end of a conductor, which is easy to handle and yet ensure a secure and permanent electrical connection, inter alia, against tensile forces on the conductor.
  • a further general object of the invention is to simplify the connection of electrical lines, for example to connectors, and to enable manual connection, in particular without special tools.
  • the contact terminal should allow the user to select among connection variants.
  • the contact terminal and the connector should also be inexpensive to produce and possibly suitable for outdoor use.
  • an electrical contact terminal for connecting a conductor end of a conductor or conductor cable is provided with a fixed electrical contact.
  • the conductor end is inserted from an insertion side into the contact terminal, whereby the insertion direction is defined.
  • the contact terminal comprises a holding frame or a holding frame with a contact portion, in particular a fixed contact plate with which the conductor end is contacted when the conductor end is inserted in the desired contact position in the contact terminal and the contact terminal is closed.
  • the contact plate is therefore an integral part of the support frame and the clamping spring clamps the conductor end directly against the contact plate and thus directly against the support frame.
  • the contact clamp further comprises a clamping leg which is pivotally mounted in the support frame about a pivot axis to be pivoted between an open pivot position and a closed pivot position back and forth. The pivot axis is transverse to the insertion direction.
  • the clamping leg in the closed pivotal position, electrically clamps the conductor end against the contact portion integrally formed with the support frame when the conductor end is inserted into the desired contact position in the contact terminal to establish electrical contact between the conductor end and the contact portion.
  • In the open pivot position of the clamping leg is pivoted away from the contact portion and releases the contact area in the contact terminal between the terminal point of the clamping leg and the contact portion, so that the conductor end in the open pivot position on the one hand freely in the contact area is inserted and on the other hand for removal from the Contact terminal is released. It is therefore an actively openable and closable contact terminal.
  • the clamping leg is in particular a part of an angled or curved pivotable clamping spring, which also comprises an actuating leg and a knee section therebetween.
  • the clamping leg In the closed pivot position of the clamping spring, the clamping leg is inclined - without a conductor end at an angle of preferably about 45 ° ⁇ 30 ° - to the contact portion or obliquely towards the base of the support frame and is resiliently movable, such that the conductor end in the closed pivot position can be introduced from the insertion side to the clamping point under elastic springing of the clamping leg or the entire clamping spring in the desired contact position in the contact terminal without having to open the contact terminal or to have to transfer the clamping spring in the open pivot position.
  • That the angle of the clamping leg to the contact portion and the spring tension are chosen such that on the one hand the clamping leg can be pressed by inserting the conductor end, in particular by hand, and on the other hand, but the spring tension exerts sufficient clamping normal force on the conductor end to a safe and permanent connection to ensure when the conductor end is inserted in the nominal contact position and the spring contact terminal is closed.
  • the conductor end can be inserted both with the contact terminal open - here free - and with the contact terminal closed, which makes handling more flexible.
  • the front tip of the conductor end first comes to the front of the inclined portion of the clamping leg to the plant and then typically slides on the slope of the clamping leg until the conductor end with bottom the contact section comes into contact.
  • the ladder end pushes the clamp leg upwardly away from the contact portion due to the slope and elasticity, and rubs continuously under application of force by the user into the contact area between the clamped end of the clamp leg and the driver Contact section to the nominal contact position.
  • the inclined in the insertion direction clamping leg therefore has a sufficient length to meet the sliding and Aufdgurfunktion.
  • the clamping leg should therefore have at least one skew length corresponding to the thickness of the conductor end, but preferably the skew length should be a multiple of the thickness of the conductor end.
  • such an oblique length of at least 2 mm, in particular at least 5 mm, according to one exemplary embodiment, is approximately 7 mm ⁇ 2 mm.
  • about this skew length of the clamping leg is preferably substantially straight.
  • the clamping leg should run at least in the middle of the insertion opening in the insertion direction obliquely in the direction of the contact plate or base of the support frame to ensure safe sliding of the conductor end during insertion.
  • tensile forces acting on the conductor can be transmitted directly to the bearing point via the, essentially straight, clamping leg.
  • This achieves a good conductor fit. It may, depending on the conductor, be useful to stiffen the stripped conductor end of a sheathed round conductor, for example, to provide with a crimp barrel. This may be useful especially when using a stranded wire. In particular, if a rigid single-core wire is used, but this may be waived if necessary.
  • the rubbing can additionally clean the contact points.
  • the closing force is reduced to the clamping spring against closing with already inserted conductor end, which facilitates handling, especially when closing with the fingers without tools.
  • the clamping leg is also without a conductor in the closed Pivoting already slightly biased against the contact portion to later achieve a sufficient clamping normal force.
  • a clearly audible closing noise can be provided, which increases safety.
  • a contact terminal is flexible, since it can be opened again at any time and the conductor or terminal can be replaced individually.
  • the necessary insertion force and the clamping normal force can be adjusted, inter alia, by means of the oblique angle of the clamping leg and the spring tension.
  • the pivot bearing between the clamping spring and the support frame in the insertion direction in front of the nip of the clamping leg on the conductor end i. Arranged in front of the contact area and the clamping leg extends in the closed pivot position of the pivot bearing towards the nip obliquely in the direction of insertion to the contact portion. That the conductor end is inserted from the direction of the pivot bearing of the clamping spring in the terminal contact.
  • the clamping leg pivots in this configuration when pivoting from the closed to the open pivot position in the insertion direction.
  • the clamping spring or spiral spring is therefore designed in particular as a leaf spring-like rocker arm, which pivots between the open pivot position and the closed pivot position and whose flexural rigidity is adapted such that in the closed pivot position on the one hand press the clamping leg by the insertion of the conductor end elastically allows the conductor end without further actuation of the closed contact terminal in the desired contact position in the contact terminal between the contact portion and the clamping point of the clamping leg can be inserted rubbing on both sides.
  • the rocker arm or the clamping spring is integrally stamped and formed from a metal spring plate.
  • the contact terminal can also be referred to as a rocker arm clamp.
  • the rocker arm or the clamping spring is designed as an angle lever, so that between the actuating leg and the clamping leg, an angled knee section is arranged, wherein at inserted conductor end of at least the knee section is resiliently biased, i. causes at least a part of the clamping normal force.
  • the rocker arm or the clamping spring is designed as an angle lever, so that between the actuating leg and the clamping leg, an angled knee section is arranged, wherein at inserted conductor end of at least the knee section is resiliently biased, i. causes at least a part of the clamping normal force.
  • the rocker arm or the clamping spring is designed as an angle lever, so that between the actuating leg and the clamping leg, an angled knee section is arranged, wherein at inserted conductor end of at least the knee section is resiliently biased, i. causes at least a part of the clamping normal force.
  • the clamping leg also contribute to the clamping leg itself and possibly even the actuating leg by elastic bending to the
  • the actuating leg, the knee section and the clamping leg of the rocker arm and the clamping spring close preferably an angle of greater than 90 °, or in particular form substantially a V-shape, so that the actuating limb away from the knee section also in the insertion direction.
  • the actuating portion thus has generally (apart from the angle) in the same direction (namely, the insertion direction) as the clamping leg.
  • the bearing axis is disposed within the V-shape in the region of the knee section and the actuating portion extends with the contact terminal closed substantially parallel to the insertion direction. It has proven useful to select an angle of the V-shape of 135 ° ⁇ 30 °, adapted to the size and the necessary pivot angle.
  • the substantially V-shaped clamping spring points with the knee section arrowhead like against the insertion direction, especially in the open pivot position slightly downward (towards the conductor axis) and / or in the closed pivot position slightly upward (away from the conductor axis). It should initially not be ruled out that further legs are present to form a more complex spring shape, but the simplest form, which is essentially only a V-shape of two essentially straight main legs (clamping and actuating legs) at an angle of sharpener than 90 ° and the connecting knee section. Smaller sections, such as the slightly angled nip are to be regarded as part of the respective main leg. All in all, this type of design is user-friendly and space-saving.
  • the clamping leg itself is preferably designed as an elastic spring clamping leg, such that upon pressing of the spring clamping leg in the closed pivot position by means of the conductor end, the spring-clamping leg from the contact point elastically bends.
  • the bending moment of the spring-clamping leg in the desired contact position of the conductor end is thus selected such that thereby at least a part of the clamping normal force is effected on the conductor end.
  • the actuating leg is designed as a spring leg and contributes to the effect of the clamping normal force.
  • the bending stiffness of the actuating leg is set greater than the bending stiffness of the spring-clamping leg, for example by a greater width of the actuating arm.
  • the actuating leg is preferably longer than the clamping leg, so that advantageously a translation of the actuating force is achieved in a higher clamping force.
  • the clamping leg has a free terminal end with which the conductor end is clamped and a main section extending between the free terminal end and the knee section.
  • the main section extends in the closed pivot position in the insertion direction from the insertion side to the clamping point obliquely to the contact portion and has a dual function in which it causes the derivation of the conductor end during insertion and contributes to the bias of the clamping spring.
  • the conductor end preferably comes first to the main portion to the plant and is guided due to the oblique arrangement in the direction of the contact portion, in order then to press the clamping spring.
  • the section with the free terminal end is considerably shorter than the main portion and is preferably bent slightly counter to the insertion direction relative to the main portion, so that in the closed pivot position with inserted conductor end the free terminal end forms a stoop angle with the contact portion of the support frame than the main portion or part the clamping leg, which causes the introduction of the conductor end.
  • the clamping portion with the clamping end is therefore angled at an angle of less than 90 ° relative to the main portion, in particular by less than 45 °. In this way, despite a relatively acute angle of the main section, a better power dissipation can be achieved and the pull-out force can be increased.
  • the free clamping section or the clamping end should still point in the insertion direction, ie, as viewed from the insertion direction, have an angle of less than 90 ° to the insertion direction or to the contact section essentially parallel thereto, so as not to hinder the insertion of the conductor.
  • the clamping leg thus still runs substantially straight from the nip to the bearing axis.
  • the main portion of the spring-clamping leg on, in particular arcuate, constriction, which reduces the bending stiffness of the spring-clamping leg at the constriction. This ensures a better distribution of the bending moment and the clamping spring can be made slightly smaller on the whole.
  • the narrowest point of the main section is narrower than the free terminal end and the knee section.
  • the actuating leg of the clamping spring preferably has a remote from the pivot bearing positioned Operating section on.
  • the closing of the clamping spring for example, by manual pressing by the user and can be done with a bare finger.
  • the pivotal movement is effected in the closed pivot position of the clamping spring on the actuating leg, which acts as a power lever.
  • the pivoting angle is approximately 45 ° ⁇ 30 ° and the actuating portion extends in the open pivot position obliquely away from the contact portion and possibly in the closed pivot position substantially parallel to the insertion direction, which allows good operability and compact design.
  • the rocker arm engages audibly on the support frame in the closed pivot position, so that a high contact reliability is ensured.
  • the rocker arm or the clamping spring on a free latching portion which is located at the opposite end of the free clamping end of the rocker arm remote from the bearing axis.
  • the latching portion is preferably angled relative to the actuating limb in the direction of the holding frame or the contact portion and the latching means are arranged on the latching portion.
  • the locking means do not interfere with manual operation.
  • the fact that the locking of the actuating leg is arranged away from the storage, the actuating leg can also contribute to the spring action and bias.
  • the holding frame is preferably formed in cross-section to the insertion direction substantially U-shaped and thus has two lateral cheeks and a lower base, the latter integrally forming the contact portion.
  • the Rocker arm or the clamping spring also has two lateral cheeks and the rocker arm is pivotally mounted with his cheeks on the cheeks of the support frame, which ensures good lateral guidance.
  • the lateral cheeks of the rocker arm are formed substantially L-shaped and the bearing axis of the rocker arm is arranged in the insertion direction of the conductor end in front of the junction of the lateral cheeks on the actuating limb so that the pivot point relatively close to the knee section and the connection point slightly further the knee section away.
  • connection element to which the conductor end is connected by means of the contact terminal is arranged on the insertion side of the conductor end opposite side and facing in the insertion direction, so that a substantially linear connection between the conductor and the connection element, for example, is provided for a linear connector.
  • the protruding connecting element is formed integrally with the holding frame.
  • the holding frame is punched and formed together with the connecting element, for example a plug-in contact, from a piece of sheet metal.
  • the holding frame and the plug contact are in particular made of copper sheet, for example, about 0.8 mm to 2 mm thick, stamped and shaped and silvered or tinned and the clamping spring is made of a Spring steel sheet, for example about 0.3 mm to 0.5 mm, punched and shaped.
  • the metallic holding frame has a stop against which a counter-stop of the clamping spring strikes in the closed state.
  • the stop blocks movement of the clamping spring against the clamping standards and is e.g. formed in the form of lateral pins on the cheeks and arranged in particular in the storage area.
  • an additional safeguard against unintentional cracking of the clamping spring is ensured, in the event that the storage of the clamping spring dissolves.
  • the holding frame for this purpose on both sides on its upper side near the storage side hook-like projections which extend transversely to the insertion direction and along the axis of rotation of the cheeks of the U-shaped support frame.
  • Lateral projections on the clamping spring engage in closing the clamping spring in the hook-like projections, which not only secures against the clamping standards, but also against unintentional bending of the cheeks of the clamping spring and the holding frame against each other, which ensures against unintentional popping storage. This is particularly advantageous when short bearing journals are used as a pivot bearing.
  • the invention further relates to a connector for connecting a conductor end to the connection element with a preferably watertight housing in which the contact terminal is housed.
  • the connector is thus particularly suitable for use outdoors, in particular for the connection of photovoltaic modules, eg as Connector for connection to a junction box of a photovoltaic module.
  • the dielectric housing is preferably formed at least in two parts, more preferably at least three parts, and comprises an inner holding part, to which the contact clamp is attached, for example, is latched to the holding part with latching hook.
  • the housing further has a sleeve-shaped Umgepurteil, which at least partially surrounds the holding part in the assembled state.
  • the sleeve-shaped Umgepurteil preferably has an inner securing portion, for example in the form of an inwardly directed rib, which rests in the mounted state on the actuating limb and thus secures the rocker arm, if necessary, in addition to the catch against accidental rupture.
  • the housing bottom is formed in continuation of the contact portion to ensure a hook-free insertion of the conductor end via the housing bottom and the contact portion.
  • the housing further comprises a third sleeve-shaped cap part, which is in the assembled state with the sleeve-shaped Umgephaseuseteil engaged and includes the contact terminal and the holding part together with the sleeve-shaped Umgephaseuseteil, preferably substantially waterproof.
  • the contact terminal is fixed to the holding part of the housing and the capping part is temporarily fixed to the holding part.
  • the cap part is designed as a cap sleeve or union nut, which with a threaded end, not yet completely unscrewed on the holding part.
  • the contact terminal may still be open.
  • the union nut is screwed onto the sleeve-shaped Umgecharuseteil and the clamping rib of the sleeve-shaped Umgephaseuseteils is applied to the clamping spring and secures them.
  • the union nut has opposite the threaded end an insertion opening for the conductor and between the union nut and the holding part is an elastomeric ring seal used to seal the conductor to its sheath.
  • the sleeve-shaped Umgekoruseteil has at its end opposite the insertion a contact projection in which the connection element is housed for contacting with a mating connector, and connecting means with the mating connector.
  • the connector with closed and secured contact terminal without ladder can be almost completely assembled and only subsequently the conductor with the stripped conductor end in the connector with closed contact terminal can be inserted. It is only expedient to leave the screw still slightly loose before inserting the conductor, and only after insertion of the Conductor and manufacture of the terminal contact to tighten the screw, the seal is made. As a result, the connector can be prefabricated very far and is particularly easy for the user to handle. The conductor end is therefore in both states, namely both in the open state and in the closed state with the contact terminal or with the connector, in particular manually, connectable or connectable.
  • Fig. 1 shows the contact terminal 10 according to the invention with a U-shaped cross-section in the contact area of sheet metal bent support frame 20 and the pivotally mounted on the support frame 20 clamping spring 60.
  • the support frame 20 has on lateral cheeks 22a, 22b on the insertion side 12 each outwardly shaped bearing pin 24a , 24b.
  • the clamping spring 60 has at its lateral cheeks 62a, 62b respectively round openings 64a, 64b, in which the bearing pins 24a, 24b engage from the inside out to form the pivot bearing 14 for the clamping spring 60.
  • the arrow E visualizes the insertion direction for the in Fig. 1 not shown ladder.
  • the pivot axis 14 of the clamping spring 60 is perpendicular to the insertion direction E and perpendicular to the base 26 of the support frame 20, which integrally connects the two lateral cheeks 22a, 22b and forms the contact portion as a mating contact for the clamping spring and the electric busbar.
  • the clamping contact 10 also has a connection element 28, in this example in the form of a three-part socket.
  • the three-part socket 28 is stiffened with an over-spring 30 and with a connecting portion 32 which extends parallel to the contact plate 26, integrally stamped and formed with the holding frame 20.
  • the clamping spring 60 is substantially V-shaped and comprises a clamping leg 72, an actuating leg 74, a knee section 76 connecting the clamping leg and the actuating leg.
  • the clamping spring is closed after pivoting down by manual operation of the user.
  • Locking portion 78 are each integrally formed laterally locking projections 80a, 80b, which engage audibly behind locking lugs 34a, 34b.
  • the actuating leg 74 further includes a slightly widened actuating portion 82 at the opposite end of the bearing 14 on which the user presses to close the contact terminal 10.
  • the central main portion 84 of the actuating leg 74 which is slightly narrower than the actuating portion 82, the lateral cheeks 62a, 62b are bent downwards vertically and embrace the lateral cheeks 22a, 22b of the holding frame 20.
  • the lateral cheeks 62a, 62b are transverse to the pivot axis 14 substantially L-shaped with a downwardly extending arcuate connecting portion 86a, 86b and a substantially straight and vertically downwardly extending guide portion 88a, 88b.
  • the openings 64a, 64b are respectively arranged at the rear, the insertion side facing the end of the guide portion 88a, 88b.
  • the L-shaped hooks 36a, 36b on the one hand form a securing stop upward and a lateral securing against bending for the two cheeks 62a, 62b by lateral guidance, so that a popping of the bearing in the closed pivoting position (FIG. Fig. 2, 4 ) is securely prevented, even if a large force acts on the clamping spring 60.
  • the clamping leg 72 has lateral constrictions 73a, 73b, which run asymmetrically arcuately and provide for a reduction in the bending stiffness.
  • the clamping leg 72 has at its lower end a again in full width designed clamping portion 92, with the lower edge 94, the conductor end is clamped and thus defines the nip 95.
  • FIG. 8 is the general V-shape of the clamping spring 60, formed by the clamping leg 72, the actuating leg 74 and the knee section 76, clearly visible.
  • a special feature of the invention is shown, namely the insertion of the conductor end in the closed contact terminal 10.
  • the conductor end 16 is inserted transversely to the axis of rotation 14 of the insertion side 12 in the insertion direction E in the contact terminal 10 linear.
  • the conductor end 16 first abuts with its upper edge approximately in the middle against the clamping leg 72 and, if not already down on the bottom 158 of the housing 160, led down.
  • the housing bottom 158 which in the Fig. 9-11 is only partially shown, leads the contact portion on the insertion side surface and should be formed at its top approximately flush with the base or contact plate 26 of the support frame 20 to allow a hook-free insertion of the conductor end 16.
  • the clamping leg 72 springs upwards and releases the contact region 18 of the contact terminal 10 piece by piece.
  • Fig. 11 shows the fully inserted in the insertion direction E in the contact terminal conductor end 16 in the end position or nominal contact position.
  • the clamping leg 72 clamped with the clamping edge 94 of the clamping portion 92, the conductor end 16 against the contact plate 26 to make the electrical contact. Due to the slight bending of the clamping portion 92 against the insertion direction E with respect to the main portion 75 of the Klemmschenkels 72 is the clamping angle of the clamping leg 72 at the nip 94 despite oblique contact leg 72, whose angle was reduced to the insertion direction by the springs still to about 20 °, yet acceptable.
  • a tensile force K z counter to the insertion direction E on the conductor end 16 acts in the closing direction of the clamping spring 92 acting normal component K N. This increases the pull-out force and thus ensures a permanent connection. In other words, the tensile force K Z causes a tightening of the clamping connection.
  • the housing 160 of the connector 110 is formed in this example in three parts with a sleeve-shaped housing 162, a holding part 164 and a union nut 166.
  • the contact terminal 10 is latched with upwardly extending locking tabs 172a, 172b in the holding part 164.
  • the holding part 164 is substantially U-shaped in cross section, so that the contact terminal 10 can be inserted from above.
  • the operating portion 74 of the clamping spring 60 projects upwards out of the holding part 164, so that the contact clamp can be comfortably closed with the finger.
  • Fig. 14 extends the clamping leg 72 of the clamping spring 60 in the open state approximately parallel to the insertion direction E, so that in In this example, the clamping spring 60 sweeps over a pivot angle of about 45 °.
  • the union nut 166 is screwed with its thread 174 on the thread 176 of the holding part 164, wherein an elastomeric sealing sleeve 178 is inserted into a crimping crown 180 at the insertion end of the holding part 164.
  • the user need only hold the rear contact assembly 182 from the parts 10, 164, 166, 178 and the front sleeve-shaped surrounding housing 162 and can freely insert the conductor end through the insertion opening 184 in the union nut 166 into the open contact terminal 10.
  • a visual inspection of the correct position of the conductor end 16 is possible and the actuating leg 74 is easily accessible with the finger, so that the user can then close the contact terminal 10.
  • the sleeve-shaped surrounding housing 162 is pushed from the front onto the plug contact 28, via the holding part 164 and into the union nut 166. Then, the union nut 166 is screwed on further, the thread 174 engaging with the external thread 186 of the sleeve-shaped surrounding housing 162 and being screwed tightly. Since the thread 174 ends approximately in the middle of the union nut 166, the screw with the thread 176 of the holding part 164 is released again, so that an optimal screw connection with the sleeve-shaped surrounding housing 162 can be achieved.
  • alternative forms of connection are conceivable.
  • the closed contact terminal 10 can be completely installed in the housing 160 and the housing 160 can be closed by screwing. It is only necessary to ensure that the elastomeric sealing sleeve 178 is not completely crushed.
  • the conductor end 16 is inserted into the assembled, but not yet screwed connector in the insertion direction E through the insertion opening 184 in the connector housing 160 and the contact, as shown in the Fig. 9-11 is shown prepared. Subsequently, only the housing 160 is screwed tightly to seal with the elastomeric sealing sleeve 178, the sheath (not shown) of the conductor.
  • Fig. 16 It is shown that the projecting plug contact 28 in the housing 160, more precisely in the sleeve-shaped housing 162, which is designed as a front plug-in part, is housed.
  • the front housing plug 162 has a tubular projection 190 to define the front plug housing.
  • a complementary mating connector not shown.
  • connector housing 160 secures a clamping rib 194 inside the sleeve-shaped housing 162, the clamping spring 60 by abutment against its operating portion 74 against unintentional opening, which further increases the contact reliability.

Claims (15)

  1. Borne de contact (10) destinée à la connexion d'une extrémité de conducteur (16) dénudée qui peut être engagée depuis un côté d'insertion (12) dans la borne de contact (10), comprenant :
    un châssis de support (20) doté d'une partie de contact (26) à laquelle peut être connectée l'extrémité de conducteur (16),
    un ressort de serrage (60) qui comporte une branche de serrage (72) et une branche d'actionnement (74) et est réalisé sous forme de levier basculant qui est monté pivotant dans le châssis de support (20) et peut être pivoté en va-et-vient entre une position de pivotement ouverte (fig. 1) et une position de pivotement fermée (fig.2),
    sachant que dans la position de pivotement fermée, la branche de serrage (72) serre l'extrémité de conducteur (16) contre la partie de contact (26), lorsque l'extrémité de conducteur (16) est engagée dans la position de contact de consigne (fig. 11) dans la borne de contact (10), afin d'établir le contact électrique entre l'extrémité de conducteur (16) et I a partie de contact (26),
    sachant que dans la position de pivotement ouverte, la branche de serrage (72) est pivotée dans le sens opposé à la partie de contact (26) et libère la zone de contact (18) dans la borne de contact (10), de sorte que dans la position de pivotement ouverte, l'extrémité de conducteur (16) peut d'une part être insérée dans la borne de contact (10) et est d'autre part libérée en vue du retrait de la borne de contact (10),
    sachant qu'il est prévu des moyens d'encliquetage (80a, 80b, 34a, 34b) entre le ressort de serrage (60) et le châssis de support (20), et que dans la position de pivotement fermée, le ressort de serrage (60) est encliqueté dans le châssis de support (20),
    caractérisée en ce que
    dans la position de pivotement fermée encliquetée, la branche de serrage (72) s'étend en biais (y) en direction de la partie de contact (26), dans le sens d'insertion (E) de l'extrémité de conducteur (16), et en ce que
    la branche de serrage (72) est réalisée avec une mobilité élastique, de telle sorte que dans la position de pivotement fermée encliquetée, l'extrémité de conducteur (16) puisse être insérée dans la position de contact de consigne dans la borne de contact (10), avec ouverture souple élastique de la branche de serrage (72).
  2. Borne de contact (10) selon la revendication 1, dans laquelle le palier pivotant (14) est disposé avant le point de serrage (94) de la branche de serrage (72) sur l'extrémité de conducteur (16), dans le sens d'insertion (E), et dans la position de pivotement fermée, la branche de serrage (72) s'étend en biais en direction de la partie de contact (26), dans le sens d'insertion, depuis le palier pivotant (14) vers le point de serrage (94), et la branche de serrage (72) s'ouvre par pivotement, dans le sens d'insertion E, lors du pivotement de la position fermée à la position ouverte.
  3. Borne de contact (10) selon la revendication 1 ou 2, dans laquelle le ressort de serrage (60) est réalisé d'une seule pièce, par découpage dans une tôle élastique à ressort, et est mis en forme.
  4. Borne de contact (10) selon une des revendications précédentes, dans laquelle le ressort de serrage (60) est réalisé comme levier coudé, et une partie de genou (76) coudée est disposée entre la branche d'actionnement (74) et la branche de serrage (72).
  5. Borne de contact (10) selon la revendication 4, dans laquelle la branche d'actionnement (74), la partie de genou (76) et la branche de serrage (72) constituent sensiblement une forme en V.
  6. Borne de contact (10) selon une des revendications précédentes, dans laquelle la branche de serrage (72) est réalisée comme branche de serrage de ressort (72) élastique, de telle sorte que lorsque, dans la position de pivotement fermée, la branche de serrage de ressort (72) est poussée dans le sens de l'ouverture au moyen de l'extrémité de conducteur (16), la branche de serrage de ressort (72) se déforme élastiquement dans la direction opposée à la partie de contact (26), et le moment de flexion de la branche de serrage de ressort (72) produise, dans la position de contact de consigne de l'extrémité de conducteur (16), au moins une partie de la force de serrage normale exercée sur l'extrémité de conducteur (16).
  7. Borne de contact (10) selon une des revendications précédentes, dans laquelle la branche de serrage (72) présente une extrémité de serrage (94) libre, avec laquelle est serrée l'extrémité de conducteur (16), et une partie principale, sachant que dans la position de pivotement fermée, la partie principale s'étend en biais en direction de la partie de contact (26), dans le sens d'insertion (E), depuis le côté d'insertion (12) vers le point de serrage (94), et l'extrémité de serrage (94) libre est incurvée dans le sens opposé au sens d'insertion (E), de sorte que dans la position de pivotement fermée, lorsque l'extrémité de conducteur (16) est insérée, l'extrémité de serrage (94) libre forme avec la partie de contact (26) du châssis de support (20) un angle qui est plus obtus que celui avec la partie principale.
  8. Borne de contact (10) selon la revendication 7, dans laquelle la partie principale de la branche de serrage de ressort (72) présente un rétrécissement (73a, 73b) qui réduit la rigidité en flexion de la branche de serrage de ressort (72) à l'endroit du rétrécissement.
  9. Borne de contact (10) selon une des revendications précédentes, dans laquelle, dans la position de pivotement fermée, la branche d'actionnement (74) présente une partie d'actionnement (82) placée à distance du palier pivotant (14), de telle sorte que la pression exercée par l'utilisateur sur la partie d'actionnement (82) a pour effet de faire pivoter le ressort de serrage (60) et de fermer de ce fait la borne de contact (10) et, dans la position de pivotement fermée, la branche d'actionnement (74) s'étend du palier pivotant (14) vers la partie d'actionnement (82), dans le sens d'insertion (E).
  10. Borne de contact (10) selon une des revendications précédentes, dans laquelle le ressort de serrage (60) présente une partie d'encliquetage (78) qui se situe à l'extrémité du ressort de serrage (60) opposée à l'extrémité de serrage (94) libre, sachant que la partie d'encliquetage (78) est coudée par rapport à la branche d'actionnement (74), en direction du châssis de support (20), et sachant que les moyens d'encliquetage sont disposés sur la partie d'encliquetage (26).
  11. Borne de contact (10) selon une des revendications précédentes, dans laquelle le châssis de support (20) est réalisé sensiblement en forme de U et présente deux joues (22a, 22b) latérales, sur lesquelles le ressort de serrage (60) est monté de façon pivotante, et présente une base qui relie les deux joues (22a, 22b) entre elles, la base constituant la partie de contact (26).
  12. Borne de contact (10) selon la revendication 11, dans laquelle le ressort de serrage (60) présente deux joues (62a, 62b) coudées sur les côtés, et le palier (14) du ressort de serrage (60) est prévu sur les joues (62a, 62b) latérales du ressort de serrage (60) et sur les joues (22a, 22b) latérales du châssis de support (20) en forme de U.
  13. Borne de contact (10) selon une des revendications précédentes, dans laquelle le châssis de support (20) et le ressort de serrage (60) présentent des moyens de butée (90a, 90b, 36a, 36b) mutuellement complémentaires qui, dans la position de pivotement fermée, constituent un verrouillage mécanique empêchant la libération non intentionnelle du palier (14).
  14. Borne de contact (10) selon une des revendications précédentes, dans laquelle le châssis de support (20) présente un élément de connexion (28) électrique fixe, orienté dans ie sens d'insertion (E), sur le côté opposé au côté d'insertion (12) de l'extrémité de conducteur, et la borne de contact (10) établit un contact électrique entre l'extrémité de conducteur (16) et l'élément de connexion (28)
  15. Connecteur (110) destiné à la connexion d'une extrémité de conducteur, comprenant
    la borne de contact (10) selon une des revendications précédentes, et
    un boîtier diélectrique (160) dans lequel est logée la borne de contact (10), le boîtier (160) étant réalisé au moins en deux parties et présentant un élément de support (164), auquel est fixée la borne de contact (10), et un élément de boîtier enveloppant (162) en forme de manchon, sachant qu'à l'état monté, l'élément de boîtier enveloppant (162) entoure au moins partiellement l'élément de support (164).
EP11005784.1A 2008-12-10 2009-12-08 Pinces de contact et connexion dotée de pinces de contact Active EP2381536B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008061268.5A DE102008061268B4 (de) 2008-12-10 2008-12-10 Kontaktklemme und Verbinder mit Kontaktklemme
EP09767983.1A EP2356721B1 (fr) 2008-12-10 2009-12-08 Borne de connexion et conducteur de raccordement avec borne de connexion

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP09767983.1A Division EP2356721B1 (fr) 2008-12-10 2009-12-08 Borne de connexion et conducteur de raccordement avec borne de connexion
EP09767983.1A Division-Into EP2356721B1 (fr) 2008-12-10 2009-12-08 Borne de connexion et conducteur de raccordement avec borne de connexion
EP09767983.1 Division 2009-12-08

Publications (3)

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EP2381536A2 EP2381536A2 (fr) 2011-10-26
EP2381536A3 EP2381536A3 (fr) 2014-05-14
EP2381536B1 true EP2381536B1 (fr) 2018-04-11

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EP11005784.1A Active EP2381536B1 (fr) 2008-12-10 2009-12-08 Pinces de contact et connexion dotée de pinces de contact

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US (1) US8727819B2 (fr)
EP (2) EP2356721B1 (fr)
JP (1) JP5697602B2 (fr)
CN (2) CN102282725B (fr)
BR (2) BR122020023680B1 (fr)
DE (1) DE102008061268B4 (fr)
ES (2) ES2558135T3 (fr)
WO (1) WO2010066399A1 (fr)

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Publication number Publication date
JP2012511795A (ja) 2012-05-24
US8727819B2 (en) 2014-05-20
BR122020023680B1 (pt) 2021-03-09
CN103531921B (zh) 2016-05-25
CN103531921A (zh) 2014-01-22
CN102282725A (zh) 2011-12-14
WO2010066399A1 (fr) 2010-06-17
US20110318975A1 (en) 2011-12-29
DE102008061268A1 (de) 2010-06-24
DE102008061268B4 (de) 2017-02-23
BRPI0922446B1 (pt) 2021-01-12
CN102282725B (zh) 2015-04-01
EP2381536A2 (fr) 2011-10-26
JP5697602B2 (ja) 2015-04-08
EP2381536A3 (fr) 2014-05-14
ES2669040T3 (es) 2018-05-23
ES2558135T3 (es) 2016-02-02
EP2356721B1 (fr) 2015-10-14
BRPI0922446A2 (pt) 2020-08-11
EP2356721A1 (fr) 2011-08-17

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