EP2339697A1 - Kontaktsystem - Google Patents

Kontaktsystem Download PDF

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Publication number
EP2339697A1
EP2339697A1 EP10195837A EP10195837A EP2339697A1 EP 2339697 A1 EP2339697 A1 EP 2339697A1 EP 10195837 A EP10195837 A EP 10195837A EP 10195837 A EP10195837 A EP 10195837A EP 2339697 A1 EP2339697 A1 EP 2339697A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact surface
longitudinal direction
terminal member
end portion
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Withdrawn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
EP10195837A
Other languages
English (en)
French (fr)
Inventor
Christophe Meynier
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.)
Radiall SA
Original Assignee
Radiall SA
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 Radiall SA filed Critical Radiall SA
Publication of EP2339697A1 publication Critical patent/EP2339697A1/de
Withdrawn legal-status Critical Current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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/28—Contacts for sliding cooperation with identically-shaped contact, e.g. for hermaphroditic coupling devices
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • 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
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables

Definitions

  • the present invention relates to a contact assembly for establishing an electrical contact between two power lines.
  • a contact assembly comprising at least a first terminal member and at least a second terminal member, can be used for different applications.
  • such a contact assembly can be mounted in a housing for connecting several power lines or in a specific cartridge for connecting two power lines.
  • a terminal member of the prior art generally comprises a main portion extending in a longitudinal direction and an end portion which extends the main portion and which has electrical contact surfaces.
  • Such a terminal member is generally in the form of a socket or pin.
  • a contact assembly of the prior art generally comprises two terminal members, such as a socket and a pin.
  • the socket and the pin have electrically conductive surfaces that are in mutual contact when the pin is inserted into the socket.
  • the socket has claws or flexible petals that close on the pin to ensure electrical contact between respective conductive surfaces.
  • the petals of the bush exert on the spindle exclusively radial forces.
  • Such a terminal member of the prior art does not allow frank contact along the longitudinal direction with a complementary terminal member.
  • the exclusively radial forces between pin and socket do not ensure continuity between power lines.
  • a contact assembly of the prior art therefore requires additional parts, in particular a spring and its abutment, so as to exert efforts for mechanical cohesion between its end members and the other components of the contact assembly. This increases the cost, the size and the risk of failure of such a set of contact.
  • such a set of terminal members of the prior art pin and socket
  • US-A-5,308,258 relates to a contact assembly which comprises a connector intended to be connected to an identical electrical connector.
  • the electrical connector comprises four identical contact elements each connected to an electric cable.
  • Each contact element is composed of a metal strip formed by folding.
  • this contact assembly does not guide the electrical connectors in translation when they come into contact, which is not satisfactory.
  • the present invention aims in particular to overcome these disadvantages, by providing a terminal member whose structure is compact and ensures in itself mechanical cohesion efforts ensuring a frank contact between conductive elements.
  • a contact assembly according to the invention is relatively compact, because it does not require additional parts to ensure a clean electrical contact.
  • a terminal member belonging to a contact assembly in accordance with the invention has a structure adapted to exert cohesion forces, thus to guarantee a sharp electrical contact in the longitudinal direction, which reduces the number of parts, the congestion and the risk of failure of a contact assembly according to the invention.
  • the figure 1 illustrates a housing 2 for connecting electrical lines to each other, such as the power lines 10 and 20 whose envelope is shown in phantom at the figure 1 .
  • the housing 2 is equipped with at least one contact assembly 1 which is housed in a cylindrical bore 3 of the housing 2.
  • the contact assembly 1 makes it possible to connect the electrical lines 10 and 20.
  • the contact assembly 1 can for example define the central contacts of a coaxial connector or a coaxial connection.
  • the housing 2 forms the ground contact of this coaxial connection.
  • a coaxial connection fulfills the microwave waveguide function.
  • connection In this application, the terms "connect”, “connect”, “contact”, “drive”, “connect”, “link”, “isolate” and their derivatives are used by reference to the conduction of electricity.
  • the figure 2 illustrates the different components of the contact assembly 1.
  • the contact assembly 1 comprises a first terminal member 100 and a second terminal member 200. In operation, when the contact assembly 1 connects the electrical lines 10 and 20 together. the first terminal member 100 and the second end member 200 are respectively connected to each electrical line 10 and 20.
  • the figure 3 shows the end member 100 which comprises a main portion 101 and an end portion 110.
  • the main portion 101 extends generally in a longitudinal direction X101-X'101.
  • the end portion 110 extends the main portion 101 in the longitudinal direction X101-X'101.
  • the main portion 101 and the end portion 110 are directly connected and integral with each other. More specifically, the main portion 101 is integral with the end portion 110.
  • the term "longitudinal” qualifies a direction or an element which extends in the longitudinal direction X101-X'101 or parallel thereto.
  • the longitudinal direction X101-X'101 forms a principal direction of the main portion 101 and, by extension, of the end member 100.
  • the main portion 101 has a proximal portion 102 and a distal portion 103.
  • the end portion 110 has a proximal portion 113, a distal portion 114 and a medial portion 116.
  • the medial portion 116 s extends between the proximal portion 113 and the distal portion 114.
  • the proximal portion 113 of the end portion 110 abuts the distal portion 103 of the main portion 101.
  • proximal and distal are used with reference to the relative distance between an element and the electrical line 10 or 20 to which this element is intended to be connected.
  • the proximal portion 102 of the main portion 101 is relatively close to the power line 10, while the distal portion 103 is relatively remote.
  • the main portion 101 has an outer surface 106 which is cylindrical with a circular base.
  • the end member 100 has a hollow section 105 which extends over a portion of the length L100 of the end member 100.
  • the hollow section 105 is hollow over the entire main portion 101.
  • the main portion 101 is a circular base tube whose axis is the longitudinal direction X101-X'101.
  • the hollow section 105 opens at the distal end of the end portion 110.
  • the term "length" is used with reference to the longitudinal direction X101-X'101 of a terminal member 100 or 200.
  • the contact assembly 1 further comprises a rod 150 which is inserted into the hollow section 105 of the end member 100, as can be seen in FIGS. Figures 4 to 10 .
  • a distal portion 151 of the rod 150 protrudes from the end portion 110 so as to allow the translational guidance of the end members 100 and 200 when they come into contact.
  • the end portion 110 has, in a plane P100 orthogonal to the longitudinal direction X101-X'101, a cross section 115, in the form of "C", which is less extensive than the hollow section 105 of the main portion 101.
  • the end portion 110 is obtained by cutting or machining the tube forming the main portion 101.
  • the end portion 110 has a first contact surface 111 and a second contact surface 112.
  • the first contact surface 111 is located on the proximal portion 113 of the end portion 110.
  • the second contact surface 112 is located on the distal portion 114 of the end portion 110.
  • the second contact surface 112 is separated from the first contact surface 111 by a distance D11.12 which is non-zero and which extends in the longitudinal direction X101-X '101.
  • a junction surface 117 extends between the first contact surface 111 and the second contact surface 112.
  • the first contact surface 111 and the second contact surface 112 are oblique with respect to the longitudinal direction X101-X'101.
  • the term "oblique" means that the respective planes of the first contact surface 111 and the second surface contact 112 are inclined on the longitudinal direction X101-X'101.
  • the term "oblique" means that a plane tangential to a median region of the first contact surface or the second contact surface is inclined on the longitudinal direction.
  • a plane P11.12 which comprises the longitudinal direction X101-X'101 and which is transverse to the first contact surface 111 and to the second contact surface 112 and, d on the other hand, a plane P111 tangential to the first contact surface 111 defines a line L111 which forms with the longitudinal direction X101-X'101 an angle A111, equal to approximately 30 °.
  • Angle A111 is measured in the trigonometric direction from the longitudinal direction X101-X'101.
  • the angle A111 can be between 10 ° and 90 °.
  • Plan P11.12 corresponds to the plan of the figure 9 .
  • the intersection between, on the one hand, the plane P11.12 and, on the other hand, a plane P112 tangential to the second contact surface 112 defines a line L112 which forms with the longitudinal direction X101-X'101 an angle A112, worth about 30 °.
  • Angle A112 is measured in the trigonometric direction from the longitudinal direction X101-X'101.
  • the angle A112 can be between 10 ° and 90 °.
  • the junction surface 117 is inclined in the longitudinal direction X101-X'101 at an angle less than angles A111 and A112.
  • angles A111 and A112 are approximately equal because they are opposed by the vertex.
  • the angles A111 and A112 are determined as a function of the coefficient of friction of the materials forming the end members 100 and 200.
  • the terminal member 200 has a shape similar to the shape of the terminal member 100.
  • the description of the terminal member 100 given above in relation to the Figures 2 to 10 can therefore be transposed to the terminal member 200, with the exception of the differences shown below.
  • An element of the terminal member 200 identical or corresponding to an element of the terminal member 100 has the same numerical reference increased by 100.
  • a main portion 201, a proximal portion 202, a distal portion 203, an end portion 210, a first contact surface 211, a second contact surface 212, a proximal portion 213 of the end portion 210 are thus defined.
  • a distal portion 214 of the end portion 210 is thus defined.
  • the second contact surface 212 of the end member 200 is separated from the first contact surface 211, in the longitudinal direction X101-X'101, by a distance D12.11. -nulle and materialized at the figure 9 .
  • the distance D12.11 is substantially equal to the distance D11.12.
  • the terminal member 200 has a shape complementary to the shape of the terminal member 100.
  • the first contact surface 111 of the first end member 100 is arranged to exert on the second contact surface 212 of the second end member 200 contact forces whose resultant is symbolized by an arrow F111 to Figures 8 to 10 .
  • the contact forces may be linear forces or surface forces depending on the shapes of the surfaces in contact.
  • the resultant F111 has a component F111X which is parallel to the longitudinal direction X101-X'101 and which is oriented from the first contact surface 111 to the second contact surface 112.
  • a radial direction is a direction perpendicular and secant to the longitudinal direction X101-X'101 , such as the direction Y101-Y'101.
  • the adjective "radial” is used here with reference to the generally cylindrical geometry of the terminal member 100 or 200. Insofar as the terminal member 100 or 200 has this cylindrical geometry, the longitudinal direction X101-X'101 is merged with the axis of the cylindrical outer surface 106 of the main portion 101.
  • the second contact surface 112 of the first end member 100 is arranged to exert on the first contact surface 211 of the second end member 200 contact forces whose resultant is symbolized by an arrow F112 to figures 8 and 10 .
  • the resultant F112 has a component F112X which is parallel to the longitudinal direction X101-X'101 and which is oriented from the first contact surface 111 to the second contact surface 212.
  • the resultant F112 has a radial component F112Y which guarantees a pressure radial between the end members 100 and 200.
  • first contact surface 111 and the second contact surface 112 of the first end member 100 are arranged to exert respectively on the second contact surface 212 and on the first contact surface 211 of the end member 200 complementary, contact forces of which each resultant F111 or F112 has a component F111X or F112X which is parallel to the longitudinal direction X101-X-101 and which is oriented from the first contact surface 111 to the second contact surface 112.
  • L The orientation of a so-called “longitudinal” component, such as the components F111X and F112X, is therefore oriented from a so-called proximal zone to a distal zone.
  • the longitudinal components F111X and F112X and the radial components F111Y and F112Y make it possible to guarantee a free contact, in the longitudinal direction X101-X'101, between the respective contact surfaces 111, 112, 211, 212 of the first end member 100 and the second terminal organ 200.
  • the forces F10 and F20 are of equal intensity.
  • the force F10 is transmitted to the terminal member 200 by the member 100 and, conversely, the force F20 is transmitted to the terminal member 100 by the member 200.
  • the force F10 induces the resultant F111 at the first surface contact 111 and the resultant F112 at the second contact surface 112.
  • the resultants F111 and F112 are respectively oriented towards the second contact surface 212 and towards the first contact surface 211 of the terminal member 200.
  • the longitudinal components F111 X and F112X are oriented substantially from the terminal member 100 to the terminal member 200.
  • the first contact surface 211 and the second contact surface 212 of the second end member 200 exert contact forces respectively on the second contact surface 112 and the first contact surface 111 of the first terminal member 100.
  • the force F20 induces two resultants, not shown, at the level of the first contact surface 211 and the second contact surface 212 of the terminal member 200. These results are respectively oriented towards the second contact surface 112. and to the first contact surface 111 of the terminal member 100. The longitudinal components, not shown, of these results are therefore oriented substantially from the terminal member 200 to the terminal member 100.
  • the longitudinal and radial components of the results, not shown, of the contact forces exerted by the end member 200 on the end member 100 also contribute to guaranteeing a frank contact between the respective contact surfaces 111, 112, 211, 212 of the first terminal member 100 and the second terminal member 200.
  • the end portion 110 is flexible.
  • the end portion 110 like the main portion 101, is made of a relatively elastic material, for example a beryllium copper alloy (CuBe2).
  • CuBe2 beryllium copper alloy
  • the contact assembly 1 further comprises two spacers 11 and 21 which are electrically insulating.
  • the spacers 11 and 21 are identical in the example of the figures.
  • the spacer 11 has a sleeve shape which has a cylindrical outer surface and a central bore which is coaxial with the outer surface of the spacer 11.
  • the length of the spacer 11 in the longitudinal direction X101-X'101 is relatively low in front of the length L100 of the first terminal member 100.
  • the spacer 11 is mounted on a proximal end 152 of the rod 150.
  • the proximal end 152 has a flange 153 for holding the spacer 11 in position.
  • the spacer 21 is mounted on a proximal endpiece 252 of the second end member 200.
  • the proximal endpiece 252 has a flange 253 for holding the spacer 21 in position.
  • the proximal endpieces 152 and 252 are integral with the rod 150 and the second end member 200 respectively. Since the rod 150 and the second end member 200 are conductive, the proximal endpieces 152 and 252 are also conductive.
  • the spacers 11 and 21 make it possible to hold the end members 100 and 200 in position and to electrically isolate the terminal members 100 and 200 of the casing 2, as shown by the figures 1 or 6 to 8 .
  • each spacer 11 or 21 has a cross section, in the plane P100, which is larger than the cross section of the first terminal member 100 or the second terminal member 200.
  • the spacers 11 and 21 have respective diameters D11 and D21 which are greater than the diameter D100 and equivalent of the first end member 100 and the second end member 200.
  • the spacers 11 and 21 are arranged relative to the corresponding terminal member 100 or 200 so that a conductive element 154 or 254 electrically connected to or belonging to a respective terminal member 100 or 200 is accessible from a side 11.5 or 21.5 of the respective spacer 11 or 21 which is opposed to the respective end portion 110 or 210.
  • the conductive elements 154 and 254 form somehow conductive projections on the opposite faces of the contact assembly 1.
  • the spacers 11 and 21 allow electrical contacts in the longitudinal direction X101-X'101 between the contact assembly 1 and the ends of the power lines 10 and 20.
  • the conductive element 154 or 254 could be recessed within the respective spacer 11 or 21 so as to cooperate with a complementary member projecting at the end of the corresponding power line 10 or 20.
  • the conductive elements 154 and 254 project out of the cylindrical bore 3 respectively by a length L154 and a length L254.
  • the contact assembly 1 is in the state shown in FIG. figure 7 , in which the contact surfaces 111 and 112 on the one hand, and 211 and 212 on the other hand, are brought into open contact.
  • the end portions 110 and 210 flex and then exert contact forces on the contact surfaces 111, 112, 211 and 212.
  • the end members 100 and 200 provide optimum electrical conduction, the elements of the end members 100 and 200 being placed at their nominal dimensions.
  • the contact assembly 1 also ensures the electrical conduction between the electrical lines 10 and 20.
  • the frank contact between the terminal members 100 and 200 is also ensured in the conducting state of the figure 8 .
  • the thrust forces of the end members 100 and 200 towards each other are greater than those exerted in the conductive state illustrated in FIG. figure 7 .
  • These higher thrusts induce larger arrows at the respective distal portions 114 and 214 of the end portions 110 and 210 relative to the arrows in the conductive state illustrated in FIG. figure 7 .
  • the resultants F111 and F112 therefore have intensities greater than those generated in the conductive state illustrated in FIG. figure 7 .
  • a terminal member according to the invention makes it possible to exert efforts of mechanical cohesion, in particular in the longitudinal direction, thus to guarantee a free electric contact.
  • a contact assembly according to the invention has a number of parts and a small footprint as well as limited or even zero risk of failure. The risk of failure is even lower as the contact assembly comprises few components.
  • the present invention has been described in connection with a contact assembly for connecting two "single-contact” lines, that is to say with single voltage and current. Nevertheless, the present invention also applies to contact assemblies intended to connect simultaneously two or more parallel and “multicontact” electrical lines, that is to say having different voltages and / or currents. The invention can also be applied to the central contact of a coaxial line.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP10195837A 2009-12-23 2010-12-20 Kontaktsystem Withdrawn EP2339697A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0959478A FR2954603B1 (fr) 2009-12-23 2009-12-23 Organe terminal pour contact electrique et ensemble de contact comprenant un tel organe terminal

Publications (1)

Publication Number Publication Date
EP2339697A1 true EP2339697A1 (de) 2011-06-29

Family

ID=42455331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10195837A Withdrawn EP2339697A1 (de) 2009-12-23 2010-12-20 Kontaktsystem

Country Status (3)

Country Link
EP (1) EP2339697A1 (de)
FR (1) FR2954603B1 (de)
IL (1) IL210125A0 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1234120A (fr) * 1957-12-23 1960-10-14 Dispositif de connexion électrique
GB886251A (en) * 1957-04-22 1962-01-03 Amp Inc Improvements in electrical connections
US3179914A (en) * 1962-11-06 1965-04-20 Ibm Coaxial line connector
US3398388A (en) * 1966-09-02 1968-08-20 Amphenol Corp Universal electrical connector
US5308258A (en) 1993-01-29 1994-05-03 International Business Machines Corporation Planar modular interconnect system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886251A (en) * 1957-04-22 1962-01-03 Amp Inc Improvements in electrical connections
FR1234120A (fr) * 1957-12-23 1960-10-14 Dispositif de connexion électrique
US3179914A (en) * 1962-11-06 1965-04-20 Ibm Coaxial line connector
US3398388A (en) * 1966-09-02 1968-08-20 Amphenol Corp Universal electrical connector
US5308258A (en) 1993-01-29 1994-05-03 International Business Machines Corporation Planar modular interconnect system

Also Published As

Publication number Publication date
FR2954603A1 (fr) 2011-06-24
IL210125A0 (en) 2011-03-31
FR2954603B1 (fr) 2012-06-22

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