EP2031705A1 - Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique - Google Patents

Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique Download PDF

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Publication number
EP2031705A1
EP2031705A1 EP07017267A EP07017267A EP2031705A1 EP 2031705 A1 EP2031705 A1 EP 2031705A1 EP 07017267 A EP07017267 A EP 07017267A EP 07017267 A EP07017267 A EP 07017267A EP 2031705 A1 EP2031705 A1 EP 2031705A1
Authority
EP
European Patent Office
Prior art keywords
clamping
points
actuating
clamping unit
unit according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07017267A
Other languages
German (de)
English (en)
Inventor
Paul FRÖHLICH
Carsten Schmidt
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP07017267A priority Critical patent/EP2031705A1/fr
Publication of EP2031705A1 publication Critical patent/EP2031705A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4837—Single arrangement activating multiple springs
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5008—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using rotatable cam
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/505—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using an excentric element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • 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
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • 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
    • H01R4/4848—Busbar integrally formed with the spring

Definitions

  • the invention relates to a clamping unit for electrical contacting of an electrical device comprising a plurality of clamping points each designed to receive at least one electrical line or an electrical plug, wherein the lines or plugs can be inserted into the clamping point in a plug-in direction.
  • Such a clamping unit which is to be attached to a housing of the electrical device, establishes an electrical connection between the interior of the electrical device and the periphery.
  • sensors, actuators and also a power supply of the device which can be connected e.g. is designed as a switching device.
  • the screw in which a connected electrical line is inserted with one hand in the nip and held there and tightened a clamping screw with the other hand.
  • the other basic type of terminal is the spring-type terminal, in which a tool, e.g. a screwdriver with one hand is inserted into an unlocking to insert with the other hand an electrical line to be connected in the so-unlocked nip and hold there until the nip has unfolded after removal of the tool from the unlocking their spring clamping action.
  • the sequential steps "equip” and "fix” are always required. This makes systematic and efficient assembly difficult.
  • the object of the invention is therefore to provide a clamping unit of the type described above, which allows easy mounting of the electrical cables or plugs to be connected.
  • the clamping unit according to the invention has at least two in a direction perpendicular to the insertion depth direction consecutively arranged clamping points are summarized, wherein the summarized to a terminal row clamping points each have their own clamping mechanism. Per terminal row a common operating element is provided, by means of which all terminal points of the respective terminal row can be actuated.
  • the clamping points are biased in the open state. In this state, electrical cables can be plugged in or removed. There is no fixed clamping or fixing of the inserted cables. Due to the bias arranged in the terminal points lines or plugs can not accidentally slip despite open terminal position.
  • clamping points of a clamping row can also be actuated individually, jointly or both individually and jointly by means of the operating element.
  • Each of these variants is conceivable. This allows a very flexible adaptation to the particular application.
  • a joint operation allows very short assembly and changeover times.
  • terminal points can, for example, specifically select and connect functionally related. This also simplifies the Mounting or subsequent change of the pin assignment.
  • the operating element comprises a rod-shaped part which extends in the depth direction and can be rotated about a rotation axis running in the depth direction and which is provided with an actuating disk per nip position.
  • the rod-shaped part is designed as a screw and the actuating discs have an internally threaded bore through which the screw is passed, so that the actuating discs are movable by means of a rotational movement of the screw in the depth direction back and forth.
  • the clamping points each have a spring clamping mechanism
  • the actuating disks fixedly connected to the rod-shaped part are each formed asymmetrically with respect to the axis of rotation, so that the actuating disks depending on the rotational position of the rod-shaped member in interaction with the spring clamping mechanism of the respective Kick the clamping point.
  • the actuating mechanism comes from the cam control technology known and very well proven principle used.
  • the asymmetries of the actuating disks can also be interpreted as cams. Based on appropriately designed and mutually differing actuating discs and a targeted operation only individual terminal points can be achieved.
  • the actuating disks in particular each have a round base body which is provided with at least one radially projecting disk projection. These disc protrusions then act as cams, as stated above. They bring about a very reliable operation of the respectively associated spring clamping mechanism.
  • the spring clamping mechanism has a against a spring force and about a pivot axis pivotable receiving cage for receiving the electrical line or the electrical connector, and the receiving cage is provided with at least one actuating extension for interacting with the actuating disc.
  • terminal points of a terminal row differ from each other in terms of the actuation extension respectively attached to the receiving cage or with respect to the actuating disc. This makes it very easy to achieve a single or group-wise operation of terminal points by means of the common control element.
  • FIG. 1 an embodiment of an electrical device 1 in the form of a switching device is shown in fragmentary form.
  • the device 1 comprises for external electrical contacting a clamping unit 2 with a plurality of clamping points 3, which are intended for receiving and clamping electrical contacting of at least one electrical line 4.
  • the electrical leads 4 are inserted in a plug-in 5 in the terminal points 3.
  • the clamping points 3 are arranged distributed uniformly in a direction perpendicular to the insertion direction 5 level. This plane is spanned by a depth direction 6 of a housing of the electrical device 1 and a width direction 7 of the housing of the electrical device 1. The in the depth direction 6 in a row consecutively arranged clamping points 3 are each combined to form a terminal row 8. Several, in the embodiment of FIG. 1 a total of six, this terminal rows 8 are arranged in the width direction 7 parallel to each other.
  • All terminal points 3 one of the rows of terminals 8 each have a single control element 9 assigned. In the embodiment shown according to FIG. 1 even the terminal points 3 of two adjacent terminal rows 8 are assigned to a single control element 9. All of these associated terminal points 3 can be actuated by means of the single common control element 9, so transfer either in the open or in the locked state. At least in the depth direction 6 successively arranged clamping points 3 a terminal row 8 but still have separate clamping mechanisms.
  • the operating elements 9 are arranged on a front side 10 of the terminal unit 2, which corresponds to the front side of the electrical device 1.
  • the electrical leads 4 to be introduced into the clamping points 3 are introduced on a top side 11 of the terminal unit 2 or of the electrical device 1 that is perpendicular to the front side 10. Even if all terminal points 3 are equipped with lines 4, the controls remain 9 fully accessible. This is a significant advantage over known multi-level clamping units, as for example in 4 and 5 are shown and where access to a portion of the controls can be blocked by inserted electrical lines.
  • the operation of several terminal points 3 by the single control element 9 is also particularly space-saving. This is possible from the front view according to FIG. 2 and from the sectional view according to FIG. 3 of the electrical device 1.
  • the electrical device 1 also comprises a further clamping unit 12, which is arranged on an underside 13 of the electrical device 1.
  • the terminal units 2 and 12 are identical.
  • the particularly space-saving design of the clamping units 2 and 12 is also in a comparison with the already mentioned and in 4 and 5 schematically shown multi-level clamping units 14 and 15 clearly.
  • the latter are arranged on an electrical device 16 which is comparable to the electrical device 1.
  • the comparison shows that when using the particularly space-saving clamping units 2 and 12 on the front side 10 is a much larger area for the accommodation of a control and observation field 17 is available. Also within the housing of the electrical device 1 results due to the use of space-saving clamping units 2 and 12, a larger installation volume 18 for components that are intended to implement the device function.
  • the realized in the clamping units 2 and 12 clamping and actuating mechanism is shown in the cross-sectional views according to FIGS. 6 and 7 seen.
  • the operating element 9 is designed as a threaded screw which extends with its longitudinal direction in the depth direction 6 and is mounted rotatably within the clamping unit 2 about a rotation axis 19 parallel to the depth direction 6.
  • Each clamping point 3, an actuating disk 20 is provided in each case, which has a threaded bore through which the threaded screw of the operating element 9 is passed.
  • the actuating disks 20 can be moved back and forth by a rotary movement of the screw of the control element 9 in the depth direction 6 a bit.
  • This range of motion is determined by the dimensions of the receiving openings of the clamping points 3, in which the actuating disks 20 protrude. With a contact surface 21, the actuating discs 20 press depending on the current position in the depth direction 6 more or less strongly against a resilient clamping contact 22, in which the electrical wires 4 are inserted with their stripped ends.
  • the resilient clamping contacts 22 are shown in their open position in which the lines 4 with little effort or can be executed. Nevertheless, the resilient clamping contacts 22 exert a certain holding force on the inserted lines 4 even in this open position. This holding force is effected by means of a bias of the resilient clamping contacts 22. It is just big enough to prevent the inserted lines 4 with open nip 3 from accidentally slipping out.
  • the clamping unit 2 can be very simple, especially one-handed equip. Due to the bias of the resilient terminal contacts 22, the electrical cables to be connected 4 can be inserted one after the other into the respective clamping point 3, without immediately fixing by means of a corresponding actuation of the operating element 9 is required. This fixation takes place only when all lines 4 are inserted into the associated terminal points 3. through a corresponding tightening torque of the screw of the operating element 9 then all inserted lines 4 are clamped simultaneously. Thus, a simple and quick installation of the voltage to be connected to the clamping unit 2 electrical lines 4 is possible. In addition, the clamping unit 2 due to the holding force of the resilient contact terminals 22 in the open position also provides high security against assembly errors. After releasing the fixation, this holding force prevents the lines 4 inserted into the clamping points 3 from falling out.
  • FIG. 8 another embodiment of an electrical device 23 is shown with a clamping unit 24, the operating and clamping mechanism is realized slightly different than in the above-described clamping unit 2 and 12.
  • the clamping unit 24 includes a plurality of terminal rows 8, each in the depth direction 6 successively arranged clamping points 3. Im in FIG. 8 shown embodiment, three such terminal rows 8 are provided. Each of these three rows of terminals 8 is associated with a control element 25, by means of which the clamping points 3 of this terminal row 8 can be actuated.
  • the controls 25 are each rotatable about the parallel to the depth direction 6 axes of rotation 19.
  • Each control element 25 can assume different rotational positions, according to the exemplary embodiment FIG. 8 a total of six different rotational positions are provided, which are indicated by the capital letters "A”, "B”, “C”, “D”, “E” and “F”.
  • FIG. 8 a total of six different rotational positions are provided, which are indicated by the capital letters "A”, "B”, “C”, “D”, "E” and "F”.
  • the clamping points 3 of the terminal rows 8 are in the embodiment according to FIG. 8 divided into subgroups 26, 27 and 28, the different rotational positions of the operating element 25 are assigned.
  • the acting on the nip 3 actuating mechanism is shown schematically.
  • the operating element 25 designed as a rod, which is rotatably mounted about the axis of rotation 19.
  • the rod of the operating element 25 is provided at each of the clamping points 3 with an actuating disc 29 which is fixedly connected to the rod.
  • the actuating discs 29 each have a round basic shape, on which a radially projecting disc projection 30 is formed.
  • the actuating disks 29 are asymmetrical, in particular not rotationally symmetrical with respect to the axis of rotation 19.
  • the clamping points 3 comprise in the embodiment of the clamping unit 24 each have a spring clamping mechanism in the form of a Federzug prominences 31, which is provided at a suitable location with actuation extensions 32.
  • the exact position of these actuating extensions varies. It depends on the affiliation of the respective nip 3 to the subgroups 26 to 28.
  • the actuating projections 32 occur at a corresponding rotational position of the operating element 25 with the disc projection 30 of the respective actuating disc 29 in interaction.
  • FIG. 9 the operating element 25 is shown in the rotational position "E", in which all the clamping points 3 of the terminal row 8 are in the closed state. None of the actuating projections 32 is in the set rotational position "E" in contact with the disc projection 30th
  • the spring-loaded contact 31 has two main components, namely a receiving cage 33 and a contact tongue 34, which are pivotable about a pivot axis 35 relative to one another.
  • the receiving cage 33 has a U-shaped bracket 36, on which the contact tongue 34 rests in the unpopulated state of the clamping point 3 under a spring tension.
  • the spring-loaded contact 31 of this clamping point 3 is subsequently inserted in the in FIG. 11 brought shown locked state.
  • the contact tongue 34 presses the stripped end of the electrical line 4 against the U-shaped bracket 36 (see FIG. 11 ).
  • the receiving cage 33 and the contact tongue 34 are made of an electrically conductive material, so that in connection with the high mechanical contact force of the desired low electrical contact resistance to the electrical line 4 is produced.
  • the spring tension-based clamping unit 24 is suitable for contacting rigid or flexible lines 4 with or without wire end ferrules. Likewise, several lines 4 can be fixed in a nip 3.
  • the clamping unit 24 always provides the required contact force to produce a low contact resistance.
  • the actuating mechanism described allows a very flexible and time-efficient installation of electrical lines 4 on the clamping unit 24. In particular, many lines 4 can be removed or connected very quickly at once.
  • the current internal position of the actuating mechanism and thus the internal clamping states of the clamping points 3 on the basis of the rotational position of the operating element 25 are also visible from the outside. This increases the operational safety of the clamping unit 24.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP07017267A 2007-09-03 2007-09-03 Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique Withdrawn EP2031705A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07017267A EP2031705A1 (fr) 2007-09-03 2007-09-03 Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07017267A EP2031705A1 (fr) 2007-09-03 2007-09-03 Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique

Publications (1)

Publication Number Publication Date
EP2031705A1 true EP2031705A1 (fr) 2009-03-04

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Application Number Title Priority Date Filing Date
EP07017267A Withdrawn EP2031705A1 (fr) 2007-09-03 2007-09-03 Unité de borne dotée de plusieurs borne en vue de l'établissement d'un contact électrique

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EP (1) EP2031705A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019022A1 (de) 2010-05-03 2011-11-03 Siemens Aktiengesellschaft Klemmanordnung für ein elektrisches Gerät
DE102023000372B3 (de) 2023-02-07 2024-06-20 Mercedes-Benz Group AG Klemmvorrichtung zum Festklemmen zumindest eines elektrischen Leiters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998025325A1 (fr) * 1996-11-30 1998-06-11 Atlantis Solar Systeme Ag Dispositif de serrage pour le raccordement de connexions electriques d'elements solaires
DE19961764A1 (de) * 1999-12-21 2001-06-28 Siemens Ag Schraubenlose Klemme
WO2001047067A1 (fr) * 1999-12-21 2001-06-28 Siemens Aktiengesellschaft Systeme de serrage sans vis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998025325A1 (fr) * 1996-11-30 1998-06-11 Atlantis Solar Systeme Ag Dispositif de serrage pour le raccordement de connexions electriques d'elements solaires
DE19961764A1 (de) * 1999-12-21 2001-06-28 Siemens Ag Schraubenlose Klemme
WO2001047067A1 (fr) * 1999-12-21 2001-06-28 Siemens Aktiengesellschaft Systeme de serrage sans vis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019022A1 (de) 2010-05-03 2011-11-03 Siemens Aktiengesellschaft Klemmanordnung für ein elektrisches Gerät
WO2011138135A1 (fr) 2010-05-03 2011-11-10 Siemens Aktiengesellschaft Ensemble borne pour un appareil électrique
DE102023000372B3 (de) 2023-02-07 2024-06-20 Mercedes-Benz Group AG Klemmvorrichtung zum Festklemmen zumindest eines elektrischen Leiters

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