EP0986140B1 - Elektrische Kontaktbuchse - Google Patents
Elektrische Kontaktbuchse Download PDFInfo
- Publication number
- EP0986140B1 EP0986140B1 EP99202556A EP99202556A EP0986140B1 EP 0986140 B1 EP0986140 B1 EP 0986140B1 EP 99202556 A EP99202556 A EP 99202556A EP 99202556 A EP99202556 A EP 99202556A EP 0986140 B1 EP0986140 B1 EP 0986140B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring arms
- female terminal
- pair
- sleeve
- 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.)
- Expired - Lifetime
Links
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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
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
- H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding 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
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
Definitions
- the present invention relates to an electrical female terminal for mating with an electrical terminal pin.
- EP-A-0390865 describes an electrical female terminal which comprises a socket member integral with a crimp portion, and a sleeve which surrounds the socket member.
- the socket member is tubular and has a longitudinally extending bore having a rectangular cross-section, with a rectangular opening at the end remote from the crimp portion, for receiving an electrical pin.
- the bore is defined by four longitudinally extending spring arms, which are bent to provide contact edges adjacent the opening. The contact edges of the four spring arms are aligned in the same plane. Adjacent pairs of spring arms are joined at the opening.
- This known female terminal generates a high engagement force between the female terminal and the electrical pin during insertion of the pin.
- An electrical female terminal in accordance with the present invention for mating with an electrical terminal pin, comprises a socket member and a sleeve substantially surrounding the socket member; wherein the socket member is substantially tubular with a longitudinal axis and comprises first and second pairs of spring arms which extend in the longitudinal direction to define walls of a bore for receiving the terminal pin; an annular member at one end of the bore connected with the spring arms; a first arcuate member at the other end of the bore connected to the first pair of spring arms; and a second arcuate member at the other end of bore connected to the second pair of spring arms; the first and second arcuate members defining an opening which is substantially circular through which the terminal pin can pass; a first spring arm of the first pair of spring arms being bent inwardly to define a contact edge; a first spring arm of the second pair of spring arms being bent inwardly to define a contact edge opposed the contact edge of the first spring arm of the first pair of spring arms; a second spring arm of the first pair of spring arms being bent inwardly to define a
- the spacing of the planes of the contact edges reduces the force required to insert the terminal pin.
- the first embodiment of electrical female terminal 10 comprises a socket member 12 and a sleeve 14 which substantially surrounds the socket member.
- the socket member 12 is stamped and folded from sheet metal and is integrally connected with a crimp portion 16.
- the crimp portion 16 comprises a number of arms 18 which can be bent over, in use, to mechanically and electrically connect with an electrical conductor (not shown) in the usual manner.
- the socket member 12 is substantially tubular and has a bore 20 with a longitudinal axis A.
- the walls of the bore 20 are defined by first and second pairs of spring arms 22,24, respectively, which extend in the longitudinal direction.
- the spring arms 22,24 are integrally connected by an annular member 26.
- the first pair of spring arms 22 are integrally connected by a first arcuate member 28, and the second pair of spring arms 24 are integrally connected by a second arcuate member 30.
- the first and second arcuate members 28,30 define an opening 32 to the bore 20 which is substantially circular in shape and centred on the axis A.
- the first spring arm 34 of the first pair 22 is bent inwardly towards the axis A to define a contact edge 36 which extends substantially perpendicular to the axis.
- the first spring arm 38 of the second pair 24 is bent inwardly towards the axis A to define a contact edge 40 which extends substantially perpendicular to the axis.
- the second spring arm 42 of the first pair 22 is bent inwardly towards the axis A to define a contact edge 44 which extends substantially perpendicular to the axis.
- the second spring arm 46 of the second pair 24 is bent inwardly towards the axis A to define a contact edge 48 which extends substantially perpendicular to the axis.
- the first spring arms 34,38 are substantially opposed one another on either side of the axis A.
- the contact edges 36,40 of the first spring arms 34,38 are aligned in a first plane P1 which extends substantially perpendicular to the axis A.
- the second spring arms 42,46 are substantially opposed one another on either side of the axis A.
- the contact edges 44,48 of the second spring arms 42,46 are aligned in a second plane P2 which extends substantially perpendicular to the axis A.
- the first and second planes P1,P2 are spaced apart along the axis A, with the second plane being positioned nearer the opening 32 to the bore 20.
- Each spring arm 34,38,42,46 is substantially rectangular in cross-section on either side of its respective contact edge 36,40,44,48, but becomes arcuate (relative to axis A) at the transition to the annular member 26 and to the respective arcuate member 28,30.
- the bore 20 therefore has a substantially rectangular cross-section for the majority of its axial length with a substantially circular cross-section at either end.
- the contact edges 36,40,44,48 are substantially straight (as shown in Figure 2).
- the sleeve 14 is separately formed from the socket member 12 and is substantially square in cross-section.
- the sleeve 14 is stamped and folded from sheet metal, and then slid into position around the socket member 12.
- the sleeve engages the outer surface of the annular member 26 of the socket member 12.
- a predetermined minimum clearance X is provided between the sleeve and the first and second arcuate members 28,30.
- One of the walls 54 of the sleeve 14 has an integrally formed, outwardly directed, resilient latch tongue 56 formed therein.
- the latch tongue 56 is preferably substantially U-shaped in cross-section.
- the latch tongue 56 is used to retain the female terminal 10 when positioned in a terminal housing (not shown).
- Another of the walls 58 of the sleeve 14 is formed with a projecting tab or tabs 60 for ensuring correct alignment of the female terminal 10 when positioned in the terminal housing.
- an electrical male terminal pin (not shown) is inserted into the bore 20 of the female terminal 10 through the opening 32, and engages the spring arms 34,38,42,46.
- the pin initially engages the contact edges 44,48 of the second spring arms 42,46, and then on further insertion engages the contact edges 36,40 of the first spring arms 34,38.
- the female terminal 10 is suitable for mating with a terminal pin having a square or a round cross-sectional shape.
- the axial spacing of the planes P1 and P2 of the contact edges 36,40 and 44,48 reduces the force required to insert the terminal pin when compared to similar female terminals having contact edges lying in the same plane.
- the sleeve 14 restricts the radial outward movement of the spring arms 34,38,42,46 during insertion of the terminal pin.
- the cross-sectional shape of the bore 20, and the arrangement of the spring arms 34,38,42,46, substantially prevents an increase in insertion force when the terminal pin is not aligned on the axis A during mating.
- the second embodiment of electrical female terminal 100 shown in Figure 6 comprises a socket member 112 with an integral crimp portion 116 which are substantially the same as the socket member 12 and crimp portion 16 of the first embodiment of female terminal 10 described above.
- the sleeve 114 is substantially round in cross-section and substantially surrounds the socket member 112 with a minimum clearance at the open end 132 of the socket member.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Claims (8)
- Elektrischer Buchsenanschluss (10) zur Verbindung mit einem elektrischen Anschlussstift, umfassend ein Aufnahmeelement (12) und eine Hülse (14), die im Wesentlichen das Aufnahmeelement umgibt; worin das Aufnahmeelement im Wesentlichen röhrenförmig mit einer Längsachse (A) ist und erste und zweite Paare von Federarmen (22, 24) umfasst, die sich in die Längsrichtung erstrecken, um Wände einer Bohrung (20) zur Aufnahme des Anschlussstiftes zu definieren; ein ringförmiges Element (26) an einem Ende der Bohrung, das mit den Federarmen verbunden ist; ein erstes bogenförmiges Element (28) an dem anderen Ende der Bohrung, das mit dem ersten Paar von Federarmen verbunden ist; und ein zweites bogenförmiges Element (30) an dem anderen Ende der Bohrung, das mit dem zweiten Paar von Federarmen verbunden ist; wobei die ersten und zweiten bogenförmigen Elemente eine Öffnung (32) definieren, die im Wesentlichen kreisförmig ist und durch welche der Anschlussstift passieren kann; einen ersten Federarm (34) des ersten Paares von Federarmen, der nach innen gebogen ist, um einen Kontaktrand (36) zu definieren; einen ersten Federarm (38) des zweiten Paares von Federarmen, der nach innen gebogen ist, um einen Kontaktrand (40) zu definieren, der dem Kontaktrand des ersten Federarmes des ersten Paares von Federarmen gegenüberliegt; einen zweiten Federarm (42) des ersten Paares von Federarmen, der nach innen gebogen ist, um einen Kontaktrand (44) zu definieren; einen zweiten Federarm (46) des zweiten Paares von Federarmen, der nach innen gebogen ist, um einen Kontaktrand (48) zu definieren, der dem Kontaktrand des zweiten Federarmes des ersten Paares von Federarmen gegenüberliegt; wobei die Kontaktränder der ersten Federarme in einer ersten Ebene (P1) im Wesentlichen senkrecht zu der Längsachse liegen; die Kontaktränder der zweiten Federarme in einer zweiten Ebene (P2) im Wesentlichen senkrecht zu der Längsachse und axial in einem Abstand von der ersten Ebene angeordnet liegen; und worin die Hülse in das ringförmige Element an einem Ende (50) eingreift und ein vorbestimmtes minimales Spiel (X) mit den bogenförmigen Elementen an dem anderen Ende (52) besitzt.
- Elektrischer Buchsenanschluss nach Anspruch 1, worin die Kontaktränder (36, 40, 44, 48) sich im Wesentlichen senkrecht zu der Längsachse (A) erstrecken.
- Elektrischer Buchsenanschluss nach Anspruch 1 oder Anspruch 2, worin die Kontaktränder (36, 40, 44, 48) im Wesentlichen gerade sind.
- Elektrischer Buchsenanschluss nach einem der Ansprüche 1 bis 3, worin die Federarme (34, 38, 42, 46) so gestaltet sind, dass die Bohrung (20) einen im Wesentlichen kreisförmigen Querschnitt an beiden Enden und einen im Wesentlichen rechteckigen Querschnitt zwischen den Enden aufweist.
- Elektrischer Buchsenanschluss nach einem der Ansprüche 1 bis 4, worin die Hülse (14) im Querschnitt im Wesentlichen quadratisch ist.
- Elektrischer Buchsenanschluss nach Anspruch 5, worin eine der Wände (54) der Hülse (14) eine einteilig ausgebildete, sich nach außen erstreckende, elastische Sperrzunge (56) aufweist.
- Elektrischer Buchsenanschluss nach Anspruch 5 oder Anspruch 6, worin eine der Wände (58) der Hülse (14) eine vorspringende Nase (60) aufweist.
- Elektrischer Buchsenanschluss nach einem der Ansprüche 1 bis 4, wobei die Hülse (114) im Querschnitt im Wesentlichen rund ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19841239A DE19841239A1 (de) | 1998-09-09 | 1998-09-09 | Elektrischer Aufnahmeanschluß |
DE19841239 | 1998-09-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0986140A2 EP0986140A2 (de) | 2000-03-15 |
EP0986140A3 EP0986140A3 (de) | 2000-12-27 |
EP0986140B1 true EP0986140B1 (de) | 2003-03-12 |
Family
ID=7880394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99202556A Expired - Lifetime EP0986140B1 (de) | 1998-09-09 | 1999-08-04 | Elektrische Kontaktbuchse |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0986140B1 (de) |
DE (2) | DE19841239A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL136977C (de) * | 1964-12-16 | |||
DE3510895A1 (de) * | 1985-03-26 | 1986-10-09 | Grote & Hartmann | Rundsteckhuelse |
US4722704A (en) * | 1986-06-12 | 1988-02-02 | Amp Incorporated | High density socket contact receptacle |
US4687278A (en) * | 1986-07-31 | 1987-08-18 | Amp Incorporated | Contact socket with improved contact force |
US4874338A (en) * | 1987-03-31 | 1989-10-17 | Amp Incorporated | Receptacle box terminal with improved contact area |
GB8728575D0 (en) * | 1987-12-07 | 1988-01-13 | Amp Gmbh | Electrical socket terminal |
DE3804976A1 (de) * | 1988-02-18 | 1989-08-31 | Hella Kg Hueck & Co | Kontaktvorrichtung |
DE19536264C2 (de) * | 1995-09-28 | 2001-10-18 | Tyco Electronics Logistics Ag | Kontaktfeder mit Rasthülse |
DE19731245A1 (de) * | 1997-07-21 | 1998-01-29 | Whitaker Corp | Einstückiger buchsenförmiger elektrischer Anschluß zur Verbindung mit einem Stiftkontakt |
-
1998
- 1998-09-09 DE DE19841239A patent/DE19841239A1/de not_active Withdrawn
-
1999
- 1999-08-04 EP EP99202556A patent/EP0986140B1/de not_active Expired - Lifetime
- 1999-08-04 DE DE69905826T patent/DE69905826T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69905826D1 (de) | 2003-04-17 |
EP0986140A2 (de) | 2000-03-15 |
DE19841239A1 (de) | 2000-03-16 |
EP0986140A3 (de) | 2000-12-27 |
DE69905826T2 (de) | 2003-10-09 |
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