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
  • H01R13/04—Pins or blades for co-operation with sockets
  • H01R13/05—Resilient pins or blades

Definitions

• the present invention relates to an electrical connection device provided with a pair of contact elements having a first contact element and a second contact element complementary to the first.
• the first and second contact elements are contact elements each provided with a multi-blade contact termination so as to produce hermaphroditic contact elements.
• a hermaphrodite contact is a contact having an interruptible contact front portion with a second contact of identical shape to the first.
• the contact blades work in radial elasticity with respect to the longitudinal axis of the contact.
• this document does not describe a pair of contact elements each provided with a multi-blade contact termination so as to produce hermaphroditic contact elements.
• each contact element of a pair of hermaphroditic contact elements having the same behavior in electrical contact resistance and therefore in temperature during the passage of an intense current.
• the invention proposes an electrical contact according to claim 1.
• the blades have an upper face and a lower face, and electrical contact zones are formed between at least a portion of the upper faces of the blades and the inner face of a central body of said complementary contact.
• electrical contact zones are formed between at least a portion of the lower faces of the blades and the outer face of a central body of said complementary contact.
• the invention also relates to an electrical contact comprising at least one of the features defined by claims 2 to 9, taken in combination or in isolation, an electrical contact comprising at least one of the features defined by claims 10 to 16, taken in combination or in isolation, a connector comprising at least one of the features defined by claim 17 or an electrical contact according to claim 18.
• a device for protecting the blades of an electrical contact having a sliding element integral with the electrical contact and adapted to protect the contact blades by coming to cover them when the contact is not not inserted into a receptacle of the electrical contact to avoid any risk of bending or breaking the blades.
• the attached cage element comprises means for engaging the contact in a receptacle for receiving said contact of a connector housing receiving at least said contact.
• the contact is received in an insulating housing and the insulating housing comprises means for pushing the cage in the retracted position when the contact is inserted into the housing.
• FIG. 1 a view of a quarter perspective rear of a first embodiment of a contact according to the invention
• FIGS. 5A, 5B, 5C, 5D, 5E perspective views of a pair of contacts, according to a third and a fourth embodiment of the invention, being mated;
• FIGS. 6A, 6B, 6C perspective views of the contact of FIG.
• FIGS. 8A, 8B perspective views in section of the housings of FIG.
• FIG. 1 represents an electrical contact 1 provided with a longitudinal axis (x) in which a connection termination 2, a central body 3 and a contact termination 4 are produced in succession.
• the connection termination 2 is, according to the example of FIG. crimp terminal for receiving a cable 200.
• the electrical contact is a tubular contact, symmetrical about the x-axis, made from a rolled blank rolled.
• the contact termination comprises a first plurality of blades 5 extending generally in the longitudinal direction of the electrical contact.
• This plurality of blades 5 is regularly distributed along the guide curve of a cylinder.
• the blades comprise an upper face 6 facing the outside of the cylinder, a lower face 7 facing the inside of the cylinder and side faces 8, 9 perpendicular to said upper and lower faces.
• the blades are made according to a general S-shape along their longitudinal axis, comprise a free end 11 bent towards the longitudinal axis x of the contact and an end 12 of connection to the central body in the course of a staircase so as to reduce the cross-section. the envelope of the blades relative to the section of the central body.
• the central body is a tube of inner section slightly smaller than the outer envelope surface of the blades.
• the central body receives an attached cage element 100 which will be described later.
• FIGS. 2A to 2C represent a second type of contact according to the invention, contacts without attached cage element.
• the contact 3 is a hermaphrodite contact which couples with a complementary contact having a contact section itself comprising a plurality of blades 5b interlocking between the blades of the first plurality of blades 5a of the first contact.
• Two contacts according to the invention 1a and 1b are shown before connection to the figure
• the blades 5a of the first contact are interlocked between complementary blades 5b of the second contact, the complementary electrical contact 1b, said blades complementary forming a second plurality of blades 5b fitting in the same manner between the blades of the first plurality of blades 5a.
• the two contacts are aligned on the same coupling axis head to tail with a rotation of one of the two contacts on the coupling axis so that the blades of the first contact are positioned in the recesses or spaces between the blades of the second contact.
• the contacts are offset in rotation along the x axis so that the blades 5a of a first contact 1a are positioned between the blades 5b of the second contactsi b. When the contacts come closer, the blades of the plurality of blades 5a,
• the curved blades S comprise a segment 13 slightly inclined outwards between the ends 11 and 12, the outer face of the segment 13 rubbing against the inner face of the body 3.
• the contact pressure for the electrical connection is generated by the pressure of the central body on the blades because the central body is a tube of inner section slightly smaller than the outer envelope surface of the blades.
• the metal of the contacts is advantageously a highly spring-loaded metal alloy such as a cupro-beryllium alloy.
• FIG. 4 schematizes the pressing forces of the blades 5a, 5b of a contact against the inner surface 10b, 10a of the central body 3b 3a of the other contact and the relative angular positioning of the blades of a contact relative to the blades of the other contact.
• the hermaphrodite contacts according to the invention are thus made such that said first and second pluralities of blades 5, 5a, 5b constitute parallel electrical connections between the central bodies 3, 3a, 3b of said electrical contact and complementary electrical contact 1, 1a, 1b.
• the contacts each comprise four blades, this number can be increased or reduced, for example as a function of the diameter of the contact and the section of the blades.
• FIGS. 5A to 5C show a variant of the contact according to the invention for which the central body 3 is of generally parallelepipedal shape comprising an upper face 32, a lower face 33 and lateral flanks 34, 35.
• the blades 51a, 51b are identical to this variant or third embodiment.
• 52b are distributed on the upper face and the lower face of the contacts and comprise an upper face 52 facing the outside of the contact, a lower face 53 facing the inside of the contact and flanks perpendicular to the upper face and lower face of the contacts .
• This embodiment is made from a folded cut blank.
• the blades of the plurality of blades 51a, 51b have an upper face 52 and a lower face 53 and electrical contact zones are formed between at least a portion of the upper faces 52 blades and an inner face 10a, 10b of the central body 31a, 31b of the complementary contact 1a, 1b.
• the first and second pluralities of blades 51a, 51b here also constitute parallel electrical connections between the central bodies 31a, 31b of said electrical contact and complementary electrical contact 1a, 1b.
• the blades of this second embodiment are made according to a general S profile, have a free end 11 curved towards the longitudinal axis x of the contact included in a longitudinal plane of symmetry of the central body 31a, 31b of the contact and comprise a end 12 of connection to the central body in step of staircase so as to reduce the section of the casing of the blades relative to the section of the central body.
• two pairs of blades are disposed respectively at the end of the upper face 32 and the lower face 33 of the central body of the contact, the blades of a first pair being side by side and the blades of a second pair being spaced apart.
• the parallelepipedal contact of this example is a hermaphrodite contact for which the outer faces 52 of the blades come into contact with the inner face 10a, 10b of the central body.
• FIGS. 5D and 5E correspond to a fourth exemplary embodiment for which the contacts comprise, with respect to the third example, in addition to blades coming into contact with the inside of the central part, blades coming into contact with the outside of the central part.
• the contacts comprise, with respect to the third example, in addition to blades coming into contact with the inside of the central part, blades coming into contact with the outside of the central part.
• the plurality of blades 51a, 51b having an upper face 52 and a lower face 53 at least some of the blades are internal contact blades through which electrical contact zones are formed between at least a portion of the blades.
• upper faces 52 of the blades and the inner face 10, 10a, 10b of the central body 31a, 31b of said complementary contact 1a, 1b and at least some of the blades are external contact blades through which electrical contact zones are formed between at at least a portion of the lower faces 53 of the blades and the outer face 10c, 10d of the central body 3a, 3b of said complementary contact 1a, 1b.
• a first plurality of blades 51a, 51b of a first electrical contact 1a with a second plurality of blades 51a, 51b of a second complementary contact 1b constitute parallel electrical connections between the central bodies 31a, 31b of the contacts electric 1 a, 1 b.
• the blades contacting the inside and the outside of the central bodies are made according to a general S profile.
• the internal contact blades comprise a free end 11 curved towards the longitudinal axis of the contact and the outer contact blades comprise a free end. 11 'curved in a direction away from the longitudinal axis (x) of the contact.
• each contact 1a 1b advantageously comprises 4 pairs of contacts, either on each of the upper 32 and lower 31 faces, a pair of blades with internal contact and a pair of blades with external contact, which in total 16 connection points.
• the current capacity of the contact is increased.
• it allows a pinch of the thickness of the sheet constituting the faces of the central body between the internal contact blades and the external contact blades, so that the accuracy of the contact pressure is mainly dependent on the thickness of the sheet and relatively less the manufacturing precision of the central body.
• FIG. 7 schematically represents an electrical connector provided with contacts according to FIG.
• the connector comprises a first housing 108 called a male housing in which a first contact 1a according to the invention is received and a second housing 109, a female housing receiving a second contact 1b according to the invention.
• Each of the housings 108, 109 has a skirt 111, 112, the skirt 111 of the male housing being received inside the skirt 112 of the female housing.
• the male housing 108 may include a second outer skirt 113 covering the coupling portion of the housings and forming, with the first skirt 111 of the male housing a baffle around the skirt 112 of the female housing.
• FIGS. 8A and 8B respectively represent housings equipped with contacts according to the second exemplary embodiment, contact without attached cage element, and according to the first example, contact with attached cage element.
• the contact comprises an attached cage member 100 more particularly shown in Figures 6A to 6C, adapted to slide on the central body 3 between a protective position of said at least one longitudinal blade and a retracted position clearing said blade.
• FIG. 6A perspective of three quarter face and FIG. 6B perspective of three quarter quarter represent the cage element in the advanced position of protection of the contact contact blades 1 while FIG. 6C represents the cage in the retracted position releasing the blades of contact 5.
• the cage member 100 includes means 101 for engaging the contact in a cavity 102 for receiving said contact in a connector housing 108, 109 receiving at least said contact.
• attachment means here are inclined lances protruding from the cage element towards the rear to form harpoon elements snapping against shoulders of the housings 108, 109 as shown in FIG. 7.
• the attached cage member 100 is retained in rotation so as not to rotate on the central body of the contact and to do this, the central body 3 and the cage member are provided with a longitudinal guiding device of the cage element comprising a groove 103 made in one of the cage element and central body 3, 100 and a pin 104 sliding in the groove formed in the other of the cage element and central body 100, 3.
• the groove has a first end stop 105 before the cage member 100.
• the attached cage element 100 has an inwardly curved front face 106 forming a rear stop of the cage element 100.
• the cage member 100 comprises a lug 107 for locking the cage member on the central body in the retracted position.
• This lug is formed by a tab resulting from a cutting of the cage element and folded towards the inside of the cage element.
• This lug 107 also constitutes a locking lug of the cage element on the central body in the advanced position and the cage element passes from one position to the other by an elastic thrust on the lug which is provided with a ramp 107a allowing it to lift and mount on the central body when the cage is pushed back to the release position of the contact blade or blades.
• FIGS. 9A, 9B and 10A, 10B An example of an electrical connector receiving contacts provided with a cage element according to the invention is shown in FIGS. 9A, 9B and 10A, 10B.
• FIGS. 9A, 9B show the introduction of a contact according to the invention in a female insulating casing 109 and FIGS. 10A and 10B the introduction of a contact according to the invention in a male casing 108.
• the insulating housing 108, 109 comprises means 110 for retaining the cage element pushing it in the retracted position at the insertion of the contact in the case.
• These retaining means are shoulder distributed regularly around the front of the cell portion receiving the central body of the contacts and on which bears the front 106 of the cage elements.
• the cage element according to the invention is applicable to a hermaphrodite contact as described above or to a conventional pin contact.
• the invention is not limited to the examples shown and in particular the cage element 100 is feasible on a parallelepipedic contact according to the third embodiment, the number of blades of the hermaphrodite contacts is not limited to 4 and the housings shown in FIG. as mono-contact housings can be multi-contact housings provided with several cells receiving hermaphroditic contacts as described as well as other contacts.

Landscapes

• Connector Housings Or Holding Contact Members (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)
• Contacts (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)

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Applications Claiming Priority (2)

Publications (2)

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Country Status (7)

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• 2006
  • 2006-09-22 WO PCT/FR2006/050928 patent/WO2008034957A1/fr not_active Ceased
• 2007
  • 2007-09-24 DE DE602007013468T patent/DE602007013468D1/de active Active
  • 2007-09-24 EP EP07818367A patent/EP2104961B1/de not_active Not-in-force
  • 2007-09-24 EP EP11159090A patent/EP2360792B1/de not_active Not-in-force
  • 2007-09-24 CN CN201110152240XA patent/CN102324644B/zh not_active Expired - Fee Related
  • 2007-09-24 WO PCT/EP2007/008280 patent/WO2008034639A2/fr not_active Ceased
  • 2007-09-24 US US12/311,172 patent/US7794257B2/en not_active Expired - Fee Related
  • 2007-09-24 ES ES07818367T patent/ES2364162T3/es active Active
  • 2007-09-24 ES ES11159090T patent/ES2401174T3/es active Active
  • 2007-09-24 CN CN2007800351665A patent/CN101578740B/zh not_active Expired - Fee Related
  • 2007-09-24 AT AT07818367T patent/ATE503288T1/de not_active IP Right Cessation

Non-Patent Citations (1)

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