EP0921597B1 - Kontaktfeder - Google Patents
Kontaktfeder Download PDFInfo
- Publication number
- EP0921597B1 EP0921597B1 EP98118504A EP98118504A EP0921597B1 EP 0921597 B1 EP0921597 B1 EP 0921597B1 EP 98118504 A EP98118504 A EP 98118504A EP 98118504 A EP98118504 A EP 98118504A EP 0921597 B1 EP0921597 B1 EP 0921597B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- contact
- region
- contact according
- tin
- 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
Images
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
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
-
- 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
- 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
Definitions
- the invention relates to a contact spring with a Basic spring with a central one, of a rectangular one Frame formed spring arm base is provided at the molded on one end a connector for electrical conductors and two at the opposite end connect molded spring arms to the broad sides of the spring arm base, which converge towards each other towards the free end to run and then join a funnel open, the spring arms each in the area of the contact zone by arranged on the longitudinal edges facing each other Keep impressions at a distance as well as from one with the spring arm base connected locking sleeve are included.
- a contact spring is the beginning mentioned type with resilient contact legs for Contact knife known for high current carrying capacity, at which the aforementioned requirements are largely met.
- this known contact spring shown that the contact force after a certain The number of plugging operations is still> 3N and thus the specified holding force for an inserted knife contact not less than, but it should be noted that the required insertion force increases to approx. 10N and as a result handling impaired. This can result in circumstances the connection may be faulty or at lower holding force loosen or be interrupted.
- the invention is based on this prior art the task of a contact spring of the aforementioned Art to create that is simple in design and with reasonable Effort can be produced.
- the opening angle of the Plug funnel over its entire extent is ⁇ ⁇ 30 ° and that the spring arms crowned in the area of the contact zone are shaped and each form a contact tip.
- the indication "over its entire extent” means that the sides or legs of the funnel quasi run linearly without curvature or kink, the opening angle between the legs as pointed as possible, that is small, should be.
- the spring arms are domed in the area of the contact zone.
- the contact zone is the area where the Plug contact cooperates with the assigned knife contact.
- the layer thickness is about 1.5 ⁇ m.
- the tin layer as so-called fire tinning, that is in the molten liquid Tin bath, applied.
- Tin is known to be a good conductive metal, but it is it is mechanically unstable because of its low weight Strength only low wear resistance offers.
- the tin layer in the area of the contact tip is mechanically compressed by means of embossing.
- the tin layer can advantageously at least mechanically compressed area have an intermetallic phase, their share in relation to the total shift volume Is 50% to 75%. This intermetallic phase also contributes to increase the strength of the very soft Tin layer at.
- the spring arms of the contact spring according to the invention each of two mutually parallel spring legs formed on are formed on the broad sides of the spring arm base and by a longitudinal gap are separated from each other, the spring legs one spring arm per contact spring at its free end are connected by means of a web.
- the opposite have wedge-shaped spring arms two elongated strips each, each with a spring leg form and are connected to the spring arm base. These spring legs are through one to their free end Longitudinal gap separated from each other. However, one of the two pairs of strips, each forming a spring arm, of the longitudinal gap closed at the free end by a cross bar.
- the contact spring according to the invention is included provided with a locking sleeve, which with positive and non-positive the spring arm base works together and serves the installation the contact spring in the existing mounting openings of the housing and the like.
- Fig. 1 is a contact spring 10 according to the invention with a Locking sleeve 12 shown in side view, which has a base spring 14 is pushed over and with this non-positive and positive cooperates.
- the contact spring 10 has a in a conventional manner Spring arm base 16, at the rear end of which one in its Design already known as a crimp connection part 18 is integrally formed to connect a not shown electrical conductor is used.
- the base spring 14 of the contact spring 10 is alone, that is, shown without a locking sleeve 12, in side view.
- the design according to the invention relates essentially to How the spring arms 20 are made. About here gives the enlarged section shown in FIG. 3 Outcrop and on the other hand the cross section shown in Fig. 4 along section line II-II in FIG. 2.
- FIG. 3 shows, as already indicated above, an enlarged detail "A" from Fig. 2.
- the insertion funnel 24 on an enlarged scale from the side shown. From this representation it is clear that the course the side walls of the hopper 24 from the starting point in the so-called contact zone 30 to the free End is steady, that is, runs without kinks or curvature.
- the opening angle is at most 30 °, which is advantageously achieved that when inserting an associated one, shown schematically in FIG. 3 Knife contact 32, this not or only at most the smallest possible angle on the flanks of the insertion funnel 24 hits, so that the invention at least provided on the spring arms 20 coating Tin is not damaged, for example by scraping or Pushing off the insertion edge of the knife contact 32.
- This very clear sliding process is favored by that the tin layer in the area of the contact zone 30 compacted by mechanical stamping, i.e. strain hardened, is. On the one hand, this ensures that the wear resistance of the tin, which is known to be very soft is increased, and secondly, that the surface quality of the melt on the contact spring 10 or but at least applied to the spring arms 20 Zinns is improved and so the sliding resistance for the contact knife 32 is reduced.
- FIG. 4 shows a cross section through the base spring 14 along section line II-II in FIG. 2 and discloses that on the flat broad side of the spring arm base 16 molded spring arms 20 at least in the area of Cutting plane, which intersects the contact zone 30, spherically shaped are and each form a contact tip 33. Further is shown that the spring arms 20 as a strip-shaped spring legs 34 are formed, which are formed by a gap 36 are separated from each other.
- 1 to 4 is the already mentioned tin layer not shown in detail, since it is only a thickness of a few ⁇ m, preferably about 1.5 ⁇ m. But this is supposed to be the case not be understood to mean that the tin layer is insignificant for the invention. Rather, how explained above, the tin layer and its strength-increasing and surface-promoting treatment of considerable Significance for the present contact spring according to the invention 10th
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Measuring Leads Or Probes (AREA)
Description
- Fig. 1
- eine Seitenansicht einer erfindungsgemäßen Kontaktfeder mit angesetzter Rasthülse;
- Fig. 2
- eine Seitenansicht einer Grundfeder einer erfindungsgemäßen Kontaktfeder;
- Fig. 3
- eine Ausschnittvergrößerung "A" aus Fig. 2; und
- Fig. 4
- einen Querschnitt durch eine Kontaktfeder entlang Schnittlinie II-II in Fig. 2.
Claims (11)
- Kontaktfeder (10) mit einer Grundfeder (14) mit einer mittig angeordneten, von einem rechteckförmigen Rahmen gebildeten Federarmbasis (16), mit einem hieran an einem Ende angeformten Anschlußteil (18) für elektrische Leiter und mit zwei am entgegengesetzten Ende jeweils an den Breitseiten der Federarmbasis (16) angeformten Federarmen (20, 34), welche zum freien Ende hin keilförmig aufeinander zu laufen und anschließend sich zu einem Einstecktrichter (24) öffnen, wobei die Federarme (20, 34) jeweils im Bereich der Kontaktzone (30) durch jeweils an den Längskanten (26) angeordnete, einander zugewandte Eindrückungen (28) auf Abstand gehalten sind, sowie mit einer Rasthülse (12), welche die Federarmbasis (16) und die daran angeformten Federarme (20) umfaßt,
dadurch gekennzeichnet, daß
der Öffnungswinkel des Einstecktrichters (24) über dessen gesamte Erstreckung α < 30° beträgt und daß die Federarme (20, 34) im Bereich der Kontaktzone (30) ballig geformt sind und jeweils eine Kontaktkuppe (33) bilden. - Kontaktfeder nach Anspruch 1,
dadurch gekennzeichnet, daß
zumindest die Federarme (20, 34) mit einer Zinnschicht allseitig bedeckt sind. - Kontaktfeder nach Anspruch 2,
dadurch gekennzeichnet, daß
die Zinnschicht im Bereich der Kontaktkuppe (33) mittels Prägen mechanisch verdichtet ist. - Kontaktfeder nach einem der Ansprüche 2 oder 3,
dadurch gekennzeichnet, daß
die Zinnschicht eine geglättete Oberfläche aufweist. - Kontaktfeder nach einem der Ansprüche 3 oder 4,
dadurch gekennzeichnet, daß
die Zinnschicht im Bereich der Kontaktkuppe (33) infolge der mechanischen Verdichtung um etwa 0,3 µm geringer ist als im nicht verdichteten Bereich. - Kontaktfeder nach einem der Ansprüche 2 bis 5,
dadurch gekennzeichnet, daß
die Zinnschicht zumindest im mechanisch verdichteten Bereich eine intermetallische Phase aufweist, deren Anteil in bezug auf das gesamte Schichtvolumen 50% bis 75% beträgt. - Kontaktfeder nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß
die an den Breitseiten der Federarmbasis (16) angeformten Federarme (20, 34) jeweils von zwei zueinander parallelen Federschenkeln (34) gebildet sind. - Kontaktfeder nach Anspruch 7,
dadurch gekennzeichnet, daß
die Federschenkel (34) eines Federarmes (20) durch einen Längsspalt (36) voneinander getrennt sind. - Kontaktfeder nach einem der Ansprüche 7 oder 8,
dadurch gekennzeichnet, daß
die Federschenkel (34) eines Federarmes (20) je Kontaktfeder (10) an ihrem freien Ende mittels eines Steges (38) verbunden sind. - Kontaktfeder nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet, daß
jeder Federschenkel (34) im Bereich der Kontaktzone (30) ballig gewölbt ist und eine Kontaktkuppe (33) bildet. - Kontaktfeder nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß
die Rasthülse (12) form- und kraftschlüssig mit der Federarmbasis (16) zusammenarbeitet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19753459 | 1997-12-02 | ||
DE19753459 | 1997-12-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0921597A1 EP0921597A1 (de) | 1999-06-09 |
EP0921597B1 true EP0921597B1 (de) | 2003-04-09 |
Family
ID=7850511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98118504A Expired - Lifetime EP0921597B1 (de) | 1997-12-02 | 1998-09-30 | Kontaktfeder |
Country Status (5)
Country | Link |
---|---|
US (1) | US6217395B1 (de) |
EP (1) | EP0921597B1 (de) |
JP (1) | JPH11224710A (de) |
KR (1) | KR100348021B1 (de) |
DE (1) | DE59807845D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022107669A1 (de) | 2022-03-31 | 2023-10-05 | Bjb Gmbh & Co. Kg | Steckverbindung, insbesondere für eine Gleichstromverbindung, Steckkontakt und Verfahren zu dessen Herstellung |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4330390C2 (de) * | 1993-09-08 | 1995-10-26 | Erni Elektroapp | Einteilige, zweischenklige Kontaktfeder |
US6475042B1 (en) * | 2001-12-10 | 2002-11-05 | Hon Hai Precision Ind. Co., Ltd. | High-speed electrical connector |
US6752668B2 (en) | 2002-08-14 | 2004-06-22 | Konnektech, Ltd. | Electrical connector |
WO2013105641A1 (ja) * | 2012-01-13 | 2013-07-18 | 矢崎総業株式会社 | 電気コネクタおよびその製造方法 |
US20190273341A1 (en) * | 2018-03-01 | 2019-09-05 | Dell Products L.P. | High Speed Connector |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0675417B2 (ja) * | 1992-05-21 | 1994-09-21 | 山一電機株式会社 | ソケットコンタクト |
DE9211819U1 (de) * | 1992-07-07 | 1993-11-04 | Grote & Hartmann | Elektrisches Kontaktelement |
US5256088A (en) * | 1992-11-30 | 1993-10-26 | Foxconn International, Inc. | Contact for IC memory card |
GB9315160D0 (en) * | 1993-07-22 | 1993-09-08 | Amp Gmbh | Electrical terminal for use with short circuit spring contacts |
DE19535960C2 (de) * | 1995-09-27 | 1997-07-17 | Siemens Ag | Kontaktfeder mit Kontaktvoröffnung |
DE19611698A1 (de) * | 1996-03-25 | 1997-10-02 | Siemens Ag | Kontaktfeder |
DE29719153U1 (de) * | 1997-10-28 | 1999-03-04 | Grote & Hartmann Gmbh & Co Kg, 42369 Wuppertal | Miniaturisiertes Steckkontaktelement |
-
1998
- 1998-09-30 DE DE59807845T patent/DE59807845D1/de not_active Expired - Fee Related
- 1998-09-30 EP EP98118504A patent/EP0921597B1/de not_active Expired - Lifetime
- 1998-11-30 JP JP10340037A patent/JPH11224710A/ja not_active Withdrawn
- 1998-12-02 KR KR1019980052454A patent/KR100348021B1/ko not_active IP Right Cessation
- 1998-12-02 US US09/204,409 patent/US6217395B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022107669A1 (de) | 2022-03-31 | 2023-10-05 | Bjb Gmbh & Co. Kg | Steckverbindung, insbesondere für eine Gleichstromverbindung, Steckkontakt und Verfahren zu dessen Herstellung |
DE102022107669B4 (de) | 2022-03-31 | 2023-11-30 | Bjb Gmbh & Co. Kg | Steckverbindung, insbesondere für eine Gleichstromverbindung, Steckkontakt und Verfahren zu dessen Herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE59807845D1 (de) | 2003-05-15 |
JPH11224710A (ja) | 1999-08-17 |
EP0921597A1 (de) | 1999-06-09 |
KR100348021B1 (ko) | 2002-11-18 |
US6217395B1 (en) | 2001-04-17 |
KR19990062706A (ko) | 1999-07-26 |
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