EP3067991A1 - Buchsenkontakt, der eine feder umfasst - Google Patents

Buchsenkontakt, der eine feder umfasst Download PDF

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Publication number
EP3067991A1
EP3067991A1 EP16159357.9A EP16159357A EP3067991A1 EP 3067991 A1 EP3067991 A1 EP 3067991A1 EP 16159357 A EP16159357 A EP 16159357A EP 3067991 A1 EP3067991 A1 EP 3067991A1
Authority
EP
European Patent Office
Prior art keywords
contact
female contact
female
base
spring
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Withdrawn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
EP16159357.9A
Other languages
English (en)
French (fr)
Inventor
Michel NESPOULOUS
Christophe BOUCHER
Pascal CUIROT
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.)
Socete Technique De Productions Industrielles
Original Assignee
Socete Technique De Productions Industrielles
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 Socete Technique De Productions Industrielles filed Critical Socete Technique De Productions Industrielles
Publication of EP3067991A1 publication Critical patent/EP3067991A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Definitions

  • the present invention relates to a female contact for receiving a male contact. More particularly, the invention relates to a female contact comprising a spring for establishing an electrical contact between said female contact and a male contact.
  • the present invention also relates to a method of modifying an already existing female connector.
  • a female connector is a device comprising at least one female contact in which a male connector comprising at least one male contact is inserted in order to make an electrical contact. The electrical contact is established when the female contact is in contact with the male contact.
  • the figure 1 illustrates the points of electrical contact between a female contact and a male contact in a conventional connection. This electrical contact is made at the inner wall of the side wall of the female contact.
  • the female contacts integrated into electrical connections must respond to very precise dimensions since their dimensioning is a function in particular of the dimensions of the corresponding male contact.
  • very slight variations in sizing can occur during the manufacture of the female contacts. Therefore, it is very important that the contact between the female contact and a male contact can be established continuously even when the female contacts are not exactly the required dimensions.
  • female contact within the meaning of the invention means any device for establishing an electrical contact when a male contact is inserted therein.
  • the female contact is a contact used in a connector such as a base for electrical relay.
  • the female contact may be in the form of a socket with two lips or four lips.
  • not only the internal wall of the side wall of the female contact but also the spring ensure electrical contact with a male contact in the use position to maximize the contact points between the contact female and a male contact.
  • the spring is in contact with the base of the female contact.
  • the base of the female contact is in the form of a conical cavity.
  • the base of the female contact is plane and is chosen from the group consisting of a circular, oval, rectangular or square base.
  • the female contact comprises at least one side wall.
  • the number of side walls will depend in particular on the shape of the base.
  • a female contact comprising a circular base and a side wall or a female contact comprising a square base and four side walls.
  • the orthonormal reference (X, Y, Z) is used in which the direction X is the longitudinal direction of the side wall.
  • the side wall has at least one discontinuity (also called slot) along the direction X.
  • the side wall has two diametrically opposed slots which extend substantially from the base to the open end of the female contact thus creating two lips that can deform during a mechanical stress.
  • the two lips allow to tighten the open end of the female contact before insertion of the male contact.
  • the lips deform slightly but retain the tightening of the open end so as to promote contact with the male contact in the female contact in position d 'use.
  • the female contact has elastic properties in order to be able to deform.
  • At least a portion of the inner wall, the base and the spring are made of material electrical conductor so as to make electrical contact between the female contact and a male contact.
  • the female contact is made of a material both elastic and electrically conductive selected from the group consisting of cuprous alloys such as cuproberyllium, cupro-nickel, brasses and their mixtures.
  • the spring of the invention can be in various forms provided to be deformed under the action of an external force thus allowing to adapt to male contacts of different lengths.
  • the helical spring is in the form of a succession of non-contiguous turns with a constant pitch, that is to say with a constant distance between two successive turns.
  • the coil spring has a pitch of between 0.1 mm and 2 mm, preferably between 0.4 and 0.8 mm.
  • the coil spring has turns having a constant diameter of turns between 0.2mm and 1mm, preferably between 0.3mm and 0.5mm.
  • the helical spring comprises a lower part of a diameter d.sub.i and an upper part of a diameter d.sub.P with d.sub.p > d.sub.P , the lower part of the helical spring being oriented towards the base of the contact. female and the upper part of the coil spring being oriented towards the free edge of the female contact.
  • the female contact is of tubular shape and has a base of internal diameter d b and the ratio between the diameter d of the spring PI and the internal diameter d b of the base (d PI / d b ) is substantially greater than 1.
  • substantially greater than 1 is meant a maximum variation of 10% around the value 1.
  • the spring is fixed integrally to the female contact regardless of the conditions of use.
  • d PI is between 1 and 3 mm, preferably between 1.4 and 1.7 mm.
  • d PS is between 0.5 and 2.5 mm, preferably between 1.2 and 1.4 mm.
  • d b is between 1 mm and 3.5 mm, preferably between 1.4 and 1.9 mm.
  • the spring is made of a material having the following two cumulative characteristics: from a mechanical point of view, the spring must be elastic and from an electrical point of view, the spring must be conductive.
  • the spring is made of a material selected from the group consisting of cuprous alloys such as cuproberyllium, cupro-nickel, brasses and mixtures thereof.
  • the spring and the female contact are made with the same material (s).
  • the spring material can undergo various treatments such as heat treatments and / or surface treatments (eg gold deposit on the entire surface of the spring).
  • the amperage is of the order of 5 amps (5A).
  • the female contact can be in different connectors such as bases for electrical relays or any conventional connections comprising connectors.
  • Another object of the invention is a connector comprising at least one female contact as defined according to the invention.
  • the female connector comprises between 12 and 24 female contacts.
  • Another object of the invention is a kit comprising a connector comprising at least one female contact as defined according to the invention and a male connector.
  • Another object of the invention is a kit comprising a connector comprising at least one female contact, at least one spring as defined above and a male connector.
  • Another object of the invention is the use of the female contact, the female connector or the kits as defined in the present invention under conditions generating high mechanical and / or thermal stresses which can be encountered in means of transport such as plane or train ...
  • the method of the invention makes it possible to use female contacts which do not exactly have the precise dimensions and which are required to establish an electrical contact with a male contact and / or makes it possible to increase the lifetime of a contact.
  • female who would have been deformed over time.
  • the presence of the spring makes it possible to establish the electrical contact between the female contact and a male contact even if the male contact is not in direct contact with the side wall of the female contact.
  • the method of the invention also makes it possible to very quickly and very conveniently restore an electrical contact in a defective connector by avoiding removing the electrical cables from the entire electrical device in which the female contact is integrated.
  • the spring is inserted into the female contact until the spring is in contact with the base of the female contact.
  • the spring is inserted by force into the female contact to ensure its maintenance in the female contact regardless of the conditions of use.
  • the base of the female contact is in the form of a conical cavity.
  • the base of the female contact is flat and is selected from the group consisting of a circular, oval, rectangular or square base.
  • the female contact comprises at least one side wall.
  • the number of side walls will depend in particular on the shape of the base.
  • a female contact comprising a circular base and a side wall or a female contact comprising a square base and four side walls.
  • the orthonormal reference (X, Y, Z) is used in which the direction X is the longitudinal direction of the side wall.
  • the side wall has at least one discontinuity (also called slot) along the direction X.
  • the side wall has two diametrically opposed slots which extend substantially from the base to the open end of the female contact thus creating two lips that can be deformed during a mechanical stress.
  • the two lips allow to tighten the open end of the female contact before insertion of the male contact.
  • the lips deform slightly but retain the tightening of the open end so as to promote contact with the male contact in the female contact in position d 'use.
  • the female contact has elastic properties in order to be able to deform.
  • At least a portion of the inner wall, the base and the spring are made of electrically conductive material so as to establish an electrical contact between the female contact and a male contact.
  • the female contact is made of a material both elastic and electrically conductive selected from the group consisting of cuprous alloys such as cuproberyllium, cupro-nickel, brasses and their mixtures.
  • the spring of the invention can be in various forms provided to be deformed under the action of an external force thus allowing to adapt to male contacts of different lengths.
  • the helical spring is in the form of a succession of non-contiguous turns with a constant pitch, that is to say with a constant distance between two successive turns.
  • the coil spring has a pitch of between 0.1 mm and 2 mm, preferably between 0.4 and 0.8 mm.
  • the coil spring has turns having a constant diameter of turns between 0.2mm and 1mm, preferably between 0.3mm and 0.5mm.
  • the helical spring comprises a lower part of a diameter d.sub.i and an upper part of a diameter d.sub.P with d.sub.p > d.sub.P , the lower part of the helical spring being oriented towards the base of the contact. female and the upper part of the coil spring being oriented towards the free edge of the female contact.
  • the female contact is of tubular shape and has a base of internal diameter d b and the ratio between the diameter d PI of the spring and the internal diameter d b of the base (d PI / d b ) is substantially greater than 1.
  • substantially greater than 1 is meant a maximum variation of 10% around the value 1.
  • the spring is fixed integrally to the female contact regardless of the conditions of use.
  • d PI is between 1 and 3 mm, preferably between 1.4 and 1.7 mm.
  • d PS is between 0.5 and 2.5 mm, preferably between 1.2 and 1.4 mm.
  • d b is between 1 mm and 3.5 mm, preferably between 1.4 and 1.9 mm.
  • the spring is made of a material having the following two cumulative characteristics: from a mechanical point of view, the spring must be elastic and from an electrical point of view, the spring must be conductive.
  • the spring is made of a material selected from the group consisting of cuprous alloys such as cuproberyllium, cupro-nickel, brasses and mixtures thereof.
  • the spring and the female contact are made with the same material (s).
  • the spring material can be subjected to various treatments such as heat treatments or surface treatments (for example gold deposited over the entire surface of the spring).
  • the amperage is of the order of 5 amps (5A).
  • the figure 1 illustrates the points of electrical contact between a female contact 1 (here a bushing) and a male contact 2 in a base for conventional electrical relay.
  • the female contact 1 comprises a base 3, at least one side wall 4 being integral with the base 3 and comprising an inner wall 4a.
  • the side wall 4 has a free edge defining an open end 5 in which the male contact 2 is inserted into the position of use.
  • the electrical contact E (represented by round contact points on the figure 1 ) is made by contact between the inner surface 4a of the side wall 4 of the female contact 1 and the male contact 2 in an upper part of the female contact (that is to say close to the open end 5).
  • the female contact 11 of the present invention illustrated in FIG. figure 3 comprises a spring 16 disposed on its base 13.
  • the contact points E are located between the male contact 12 and the spring 16 and between the spring 16 and the base 13 of the female contact 11.
  • the figure 4a represents a side view of the female contact according to the invention.
  • the female contact 21 comprises a circular base 23 (represented on the figure 4b ) and a side wall 24 integral with the base 23.
  • the side wall comprises an inner wall 24a and a free edge defining an open end 25.
  • the side wall 24 comprises two diametrically opposed slots 27 which extend substantially from the base 23 to at the open end 25 of the female contact 21 along the X axis thus creating two lips 28.
  • the figure 4b is a top view of the figure 4a showing that the female contact is in a tubular form and comprises a circular base 23 integral with a side wall 24 comprising two diametrically opposed slots 27.
  • the figure 4c is a section along the AA axis of the figure 4a .
  • the base 23 of the female contact 21 has an inner diameter d b substantially less than the diameter of the lower part PI of the spring to be in contact with the base (not shown in figure 4c ).
  • the length l CF , of the female contact 21 will depend on the length of the male contact to be inserted into the female contact. According to one embodiment, the length l CF of the female contact 21 is between 3 and 10 mm, preferably between 5 and 8 mm.
  • the diameter d b is between 1 and 3.5 mm, preferably between 1.4 and 1.9 mm.
  • the figure 4d represents a side view of the female contact of Figures 4a and 4b after tightening the two lips 28. As illustrated on figure 4d , the width of the slot 27 is no longer constant as on the figure 4a but decreases from base 23 to open end 25 to become substantially zero.
  • the lips 28 are deformed slightly but retain a tightening of the open end 25 so as to promote contact with the male contact 29 in the female contact 21 in the use position.
  • the figure 5 represents a helical spring 26 according to one embodiment of the invention.
  • the coil spring 26 comprises a succession of five non-contiguous turns 31 having a constant pitch.
  • the turns 31 have a constant diameter of turns of between 0.2 mm and 1 mm, preferably between 0.3 mm and 0.5 mm.
  • the coil spring 26 comprises a lower part 32 with a diameter of P 1 and an upper part 33 with a diameter d PS with d P d> d PS , the lower part 32 of the coil spring 25 being oriented on the side of the base 23 of the female contact and the upper portion 33 of the coil spring 26 being oriented towards the open end 25 of the female contact.
  • the female contact of the present invention is quite suitable for being integrated in small electrical relay bases that require female contacts of very precise dimensions.
  • the method of the invention makes it possible to establish an electrical contact in connectors including contacts that do not have exactly the required dimensions.
  • the method of the invention makes it possible to extend the service life of the electrical installations in which faulty connectors are integrated by restoring the electrical contact and avoiding removing all the cables from said electrical installations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP16159357.9A 2015-03-13 2016-03-09 Buchsenkontakt, der eine feder umfasst Withdrawn EP3067991A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1552068A FR3033672B1 (fr) 2015-03-13 2015-03-13 Contact femelle comprenant un ressort

Publications (1)

Publication Number Publication Date
EP3067991A1 true EP3067991A1 (de) 2016-09-14

Family

ID=54014910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16159357.9A Withdrawn EP3067991A1 (de) 2015-03-13 2016-03-09 Buchsenkontakt, der eine feder umfasst

Country Status (3)

Country Link
US (1) US9583844B2 (de)
EP (1) EP3067991A1 (de)
FR (1) FR3033672B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110581394B (zh) * 2018-06-08 2021-01-26 睿能创意公司 电连接器插头
EP4439870A1 (de) * 2023-03-27 2024-10-02 Hypertac S.p.a. Buchsenkontakt mit mindestens einer neuen drahtanordnung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982935A (en) * 1958-08-25 1961-05-02 Gen Dynamics Corp Jack type electrical connector
US4632496A (en) * 1983-09-26 1986-12-30 Williams Robert A Connector socket
FR2596587A1 (fr) * 1986-03-26 1987-10-02 Allied Corp Contact femelle pour connecteur electrique
US4906210A (en) * 1988-08-15 1990-03-06 Imo Delaval Incorporated Electrical connector with improved contact
US4906211A (en) * 1987-01-30 1990-03-06 Wyle Laboratories Connector for aircraft-to-ground maintenance electrical connection
DE8915736U1 (de) * 1989-10-17 1991-03-28 VDO Adolf Schindling AG, 60326 Frankfurt Elektrische Kontaktvorrichtung
US20100216321A1 (en) * 2009-02-26 2010-08-26 Ironwood Electronics, Inc. Adapter apparatus with sleeve spring contacts
DE102012008483A1 (de) * 2011-04-26 2012-10-31 Bal Seal Engineering, Inc. Federkontakte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105280A (en) * 1976-04-26 1978-08-08 Thompson Jr Lloyd E High current density electrical contact
US4655526A (en) * 1984-08-31 1987-04-07 Amp Incorporated Limited insertion force contact terminals and connectors
US4775335A (en) * 1986-03-27 1988-10-04 Karel Havel Electrical connector
DK0970544T3 (da) * 1997-03-26 2000-12-11 Kirk Acoustics As Kontaktfjeder og værktøj til håndtering af denne
DE102004033864A1 (de) * 2004-07-13 2006-02-16 Era-Contact Gmbh Elektrischer Druckkontakt
TWM344664U (en) * 2008-04-07 2008-11-11 Hon Hai Prec Ind Co Ltd Electrical contact
US8995141B1 (en) * 2012-07-27 2015-03-31 Amazon Technologies, Inc. Connector pin on springs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982935A (en) * 1958-08-25 1961-05-02 Gen Dynamics Corp Jack type electrical connector
US4632496A (en) * 1983-09-26 1986-12-30 Williams Robert A Connector socket
FR2596587A1 (fr) * 1986-03-26 1987-10-02 Allied Corp Contact femelle pour connecteur electrique
US4906211A (en) * 1987-01-30 1990-03-06 Wyle Laboratories Connector for aircraft-to-ground maintenance electrical connection
US4906210A (en) * 1988-08-15 1990-03-06 Imo Delaval Incorporated Electrical connector with improved contact
DE8915736U1 (de) * 1989-10-17 1991-03-28 VDO Adolf Schindling AG, 60326 Frankfurt Elektrische Kontaktvorrichtung
US20100216321A1 (en) * 2009-02-26 2010-08-26 Ironwood Electronics, Inc. Adapter apparatus with sleeve spring contacts
DE102012008483A1 (de) * 2011-04-26 2012-10-31 Bal Seal Engineering, Inc. Federkontakte

Also Published As

Publication number Publication date
US9583844B2 (en) 2017-02-28
US20160268707A1 (en) 2016-09-15
FR3033672B1 (fr) 2018-07-13
FR3033672A1 (fr) 2016-09-16

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