EP0836245A2 - Connecteur électrique à fiches - Google Patents

Connecteur électrique à fiches Download PDF

Info

Publication number
EP0836245A2
EP0836245A2 EP97119582A EP97119582A EP0836245A2 EP 0836245 A2 EP0836245 A2 EP 0836245A2 EP 97119582 A EP97119582 A EP 97119582A EP 97119582 A EP97119582 A EP 97119582A EP 0836245 A2 EP0836245 A2 EP 0836245A2
Authority
EP
European Patent Office
Prior art keywords
contact
pin
plug
electrical
receiving chamber
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.)
Granted
Application number
EP97119582A
Other languages
German (de)
English (en)
Other versions
EP0836245A3 (fr
EP0836245B1 (fr
Inventor
Uwe Frinker
Peter Pszola
Stephan Peter Dieudonne
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
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 Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Priority claimed from EP95924279A external-priority patent/EP0767978B1/fr
Publication of EP0836245A2 publication Critical patent/EP0836245A2/fr
Publication of EP0836245A3 publication Critical patent/EP0836245A3/fr
Application granted granted Critical
Publication of EP0836245B1 publication Critical patent/EP0836245B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • 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
    • 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
    • H01R13/14—Resiliently-mounted rigid sockets
    • 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
    • H01R13/33—Contact members made of resilient wire
    • 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
    • H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
    • H01R4/4863—Coil spring

Definitions

  • the invention relates to an electrical connector with a connector receptacle and a connector pin, in particular a round plug pin in cross section, whereby-the Plug receptacle has a receiving chamber and in the receiving chamber has an axially compressible, single coil spring coil arranged is.
  • Such an electrical connector is in the Form known that in the insertion direction in front of the coil spring a contact piece axially displaceable in the receiving chamber is arranged with which the connector pin in face electrical contact during insertion occurs. It is also known to be a tubular To provide plug receptacle on which on an outer surface a helical spring is pushed on, one Winding of the coil spring through an opening in the Connector receptacle secant the inside of the connector receptacle enforced. The plug pin is used during a plug-in process due to the secant winding pressed against an inner surface of the connector receptacle, so that in this way the desired electrical contact comes about.
  • a such electrical connector is preferred a household appliance such as a vacuum cleaner or one Food processor trained. With a vacuum cleaner, for example. to connect a separate electric drive having electric carpet brush.
  • the connector can be used as a control contact find application as main current contact.
  • the invention The connector system is also characterized by that the pin immersed in the spring to Entering the pen tip into the spring constriction, the Contact turn or the contact turns, no noteworthy Frictional resistance is opposed.
  • the electrical initial contact is in the area of English Spring windings of the insertion opening closed. When the contact turns are reached the actual electrical contact.
  • the spring is angled at this point. This then overlaps with that Spring coils located on the plug pin on the surface of the connector pin and form a total large contact area.
  • the low friction between the connector pin and the spring coils up to actual contacting keeps wear down.
  • the necessary contact pressure between the coil spring and the connector pin is on the one hand between the the contact turn and up to a rear face remaining spring axially, and on the other hand by spring tipping and winding on the pin reached radially.
  • the English contact turns pull the insertion opening as the first or last contact Place the resulting rollover and Tear-off sparks when plugging and pulling under electrical Load on themselves and keep the actual contact area free from the scorch marks.
  • the degree of contact coverage as is the case with Plug systems specified according to the prior art can, with the connector system described here with to be equated to the plug feed between reaching the contact turn and the block state (Ossification) the between the contact turn and the remaining end face of the receiving chamber Residual spring is possible.
  • the typical mechanical properties the coil spring and the constructive design of the diameter of the receiving chamber, the receiving chamber and the spring insertion area allow feeding the round connector pin with a large angle error, radial and axial misalignment.
  • With appropriate Choice of spring material and correct dimensional coordination of the spring contact system remains the spring force the coil spring and thus the contact force itself extreme climatic conditions until the end of their service life of the connector system.
  • Bpsw. is the Contact turn at least in the second third of the coil spring trained, preferably also in the second half the coil spring. But it can also be an individual different arrangement can be made because of the position the contact winding in the course of the helical spring from the free pin length, the most dimensionally unfavorable tolerance chain between the pin tip and the contact turn and the design of the contact chamber and the position of the contact element is dependent.
  • the Coil spring itself can in the usual way from one Spring wire exist.
  • a front end of the connector pin can be designed in different ways. E.g. hemispherical.
  • a slightly conical shape is preferred Forming the front end of the connector pin.
  • the Coil spring overall suitably lies with one Preload in the connector receptacle or the receiving chamber a. This turns the coil spring into contact pressure a contact element on a rear face For example, as detailed below described, built to be a safe electrical To ensure contacting of the leading wire.
  • a connector pin When a connector pin is inserted it can be plugged in Dependence on the preload and the insertion pressure to lift the coil spring from the front Contact surface of the insertion opening of the receiving chamber come. On the other hand, the coil spring lifts when it is pulled out of the connector pin not from the front contact surface on the contact element.
  • a wall of the reception chamber which is arranged to the side of the coil spring, preferably extends at a distance of at least about a diameter of a spring wire which one consists of the coil spring corresponds to the coil spring.
  • An outer diameter of the coil spring will exceeded on both sides by at least 0.5 mm. this applies for example for small pin diameters; the spring contact system can also be used with a different design will. This ensures that the coil spring a non-centered connector pin can dodge to avoid one too quickly increasing, wear-promoting frictional force.
  • a rear end of the coil spring is further preferred with connected a contact element that is under implementation through the receiving chamber in the radial direction electrical connection allows. Furthermore, the contact element also in the axial direction into the receiving chamber be fitted.
  • the Receiving chamber preferably designed open at the end.
  • the inserted contact part for example in the receiving chamber contact part inserted from behind, thus replacing the rear end face of the receiving chamber and offers the Coil spring the system at the spring end. At the same time this is good contact between the coil spring and reached the contact part.
  • the contact part can continue be provided with a crimp connection for immediate Crimp on a strand.
  • the helical spring is a spiral spring, which has some turns, the diameter of which is larger is as the outside diameter of the connector pin and which has further turns that opposite one another the outer diameter of the connector pin smaller diameter exhibit.
  • the Coil spring overall funnel-shaped.
  • the contact system here over two, three turns can extend approximately.
  • Another object of the invention relates to a Design in which the coil spring on a axially displaceable contact piece in the receiving chamber acts in the form of a contact socket. Is essential the special design of the contact piece.
  • the invention proposes that the Contact socket a receiving opening for the connector pin having.
  • the plug pin is therefore not only on the end face on the contact socket in the contact state, but is partially retracted into the contact socket.
  • the receiving opening has an insertion funnel. Deviations in the axial alignment of the contact socket and the plug pin can thus be advantageous when inserting be balanced.
  • the opening also has prefers a slightly larger diameter than it an outer diameter of an associated connector pin is. This is a slight misalignment of the Plug pin tolerable even in contact condition.
  • On the electrical contact changes in terms of circular, preferably spherically curved Contact area nothing.
  • an electrical connector 1 the a coil spring 2 and a connector pin 3.
  • the coil spring 2 and the plug pin 3 are electrical conductive.
  • An electrical circuit 4 can be inserted into the helical spring 2 getting closed.
  • the helical spring 2 mainly turns 5 having an equal (inner) main diameter. Furthermore, the helical spring 2 also has contact turns 6, one opposite the main diameter have smaller contact blades dk.
  • the main diameter ie is a little larger than an outer diameter d of the connector pin 3 while a contact diameter dk is smaller than the diameter d of the connector pin 3rd
  • Fig. 3 it can be seen that the coil spring 2 in a receiving chamber 7 is arranged.
  • the coil spring 2 is inserted into the receiving chamber 7 with prestress, so that they are on the front face 8 or rear end face 9 of the receiving chamber 7 with bias is present.
  • the concern on the rear face 9 can by means of or on a contact element 10 be given, which is described in more detail below is.
  • the receiving chamber 7 can, for example, in the plastic injection molding process - If necessary in two parts to insert the Coil spring 2 - be made.
  • a front end of the coil spring 2 assigned an insertion funnel 12 which into a Insertion opening 13 opens.
  • the insertion opening 13 has about a diameter that is a major diameter ie corresponds to the turns 5.
  • Fig. 4 is the process of inserting a pin into the coil spring and the resulting contact state clarified in detail.
  • the plug pin 3 is inserted so far into the coil spring is that this is in any case in the area of their free end turns 5 '(somewhat) compresses. Because of the geometry of the contact turns 6 is provided 4 introduced a pin between the longitudinal axis a ′′ of the plug pin 3 and the central axis a 'of the - unaffected - coil spring a. Due to the given geometry, the dome-shaped Design of a tip of the connector pin 3 and the one naturally running obliquely to the central axis a ' Contact turns 6 still gives the essential Effect that the coil spring 2 bend is looking for.
  • a conductive connection between the coil spring 2 and a voltage source 14 (see FIG. 1) of the circuit 4 can in detail by the already mentioned Contact element 10 (see. Fig. 3) can be achieved.
  • This Contact element 10 has a platelet-shaped contact surface 14 through a radial opening 15 in the Receiving chamber 7 is inserted into this. she lies in front of the rear end wall 9 of the receiving chamber 7. Die Coil spring 2 is in - on the front - pressure system the plate 14. A spread-out latching foot 14 'of Contact element 10 can in a recess 16 Be receiving chamber 7 inserted.
  • the electrical connector 6 is the coil spring as a spiral spring 22 trained. It tapers from a tallest Diameter D1 at its beginning to a smallest diameter D2 at its end.
  • the connector pin 3 is such inserted into the coil spring 22 that the larger Diameter of the coil of the coil spring 22 is not on the Pin 3, some of the smaller helix with a smaller diameter.
  • the electrical connector specified as an alternative 7 to 13 consists first of all in correspondingly from a connector pin 3 and a receiving chamber 7 with one located therein Spiral spring 2.
  • the spiral spring 2 springs in this Embodiment from its own contact socket 23.
  • This contact socket consists in detail of a larger cross-section End part 24 that against an end face 25 under the bias of the coil spring 2 in the receiving chamber 7 is present.
  • At this end part 24 is in one piece a front area of thinner cross section is connected, in which a receiving opening 26 for the Connector pin 3 is formed.
  • the contact socket 23 is overall, however, both the end part 24 and that front thinner section, in the reception chamber 7 added.
  • the receiving opening 26 faces the front an insertion funnel 27. In Fig. 7 shown position, in which the end part 24 the end face 25 abuts, there is also an offset v with respect to a front face 28 of the Receiving chamber 7.
  • the blind bore 30 can, for example. Take up dirt particles.
  • the plug pin 3 and the contact socket 23 are off a material suitable for electrical contact made, for example, of a bronze alloy.
  • a case is shown in Fig. 10 in which a longitudinal axis a1 of the contact socket 23 is not included a longitudinal axis a2 of the connector pin 3 is aligned. Because of however, the introductory funnel 27 results an introductory effect so that the connector pin 3rd 11 towards the center, i. H. to axis a1 of Receiving socket 23 is deflected. This can there is still an angular offset between axes a1 and a2 exist. This is due to the fact that a diameter the receiving opening 26 a little larger is designed as an outer diameter of the connector pin 3. In Fig. 13 is a complete alignment of the Shown axes a1 and a2.
  • Fig. 14 is in the receiving chamber 7 a contact socket 23 on the insertion opening side inserted which a receiving opening 26 for the Has pin 3.
  • the receiving opening 26 connects to an insertion funnel 27, which in the embodiment 14 by a bending edge or flanging edge is formed, which results here.
  • the contact socket 23 is in the embodiment 14 geometrically from two different diameters tubular, integrally molded Elements composed, the smaller diameter Part is turned inside so that the mentioned bending or flanged edge results. All in all is the contact socket 23, however, in stamping / bending technology created and molded in one piece.
  • the contact socket has an integral molded stop element 31, which is a central Has passage opening 32.
  • the helical spring 34 is of course electrical conductive.
  • Fig. 15 is the locking part 35 'integrally molded by a radial expansion.
  • the contact socket 23 is also integral with the latching part 35 'formed over a tube connecting part 40. Otherwise, Fig. 15 shows that the locking part 35 ', as already explained above, the crimp connection 38 connects in direct connection. It is also essential that the contact socket 23rd is not axially movable in this embodiment.
  • FIGS. 17 and 18 corresponds to essential of the embodiment of FIGS. 15 and 16, with the exception that the contact socket 23 no longer has a retracted part that the spherically curved Forms stop surface, but the tube connecting part 40 tapered towards the contact socket 23 tapered and in the range of the smallest diameter in the spherically curved surface to the front surface Contact with pin 3 passes.
  • a through opening 32 remains.
  • the cross-sectional view 18 shows that also here essentially the same contact conditions result, as in the previously described embodiments 14 to 16.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
EP97119582A 1994-06-29 1995-06-19 Connecteur électrique à fiches Expired - Lifetime EP0836245B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE4422437 1994-06-29
DE4422437 1994-06-29
DE4433657 1994-09-21
DE4433657 1994-09-21
DE4441303A DE4441303A1 (de) 1994-06-29 1994-11-21 Elektrische Steckverbindung
DE4441303 1994-11-21
EP95924279A EP0767978B1 (fr) 1994-06-29 1995-06-19 Connecteur electrique a fiches

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP95924279A Division EP0767978B1 (fr) 1994-06-29 1995-06-19 Connecteur electrique a fiches

Publications (3)

Publication Number Publication Date
EP0836245A2 true EP0836245A2 (fr) 1998-04-15
EP0836245A3 EP0836245A3 (fr) 1999-10-06
EP0836245B1 EP0836245B1 (fr) 2003-03-05

Family

ID=25937763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119582A Expired - Lifetime EP0836245B1 (fr) 1994-06-29 1995-06-19 Connecteur électrique à fiches

Country Status (3)

Country Link
EP (1) EP0836245B1 (fr)
KR (1) KR100372740B1 (fr)
DE (3) DE4441303A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124245A1 (fr) * 2014-02-20 2015-08-27 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connexion enfichable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6565395B1 (en) * 2001-12-21 2003-05-20 Northrop Grumman Corporation Electrical connection to a coil spring through a local interference fit for connection to a vibratory rotation sensor and method of forming the same
DE10261521B3 (de) * 2002-12-23 2004-09-16 Robert Bosch Gmbh Hochstromführende Kontaktelemente mit Versatzausgleich
CH708837A1 (de) * 2013-11-14 2015-05-15 Kistler Holding Ag Piezoelektrischer Kraftsensor mit lösbarer elektrischer Verbindung zwischen Elektrode und Kontaktpin.
TWM588470U (zh) * 2019-10-25 2020-01-01 賴翔浩 接髮結構

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074046A (en) * 1960-12-19 1963-01-15 Cons Engineering Service Inc Coiled wire nut fastener and conductor
WO1986001645A1 (fr) * 1984-08-31 1986-03-13 Amp Incorporated Bornes et connecteurs de contact a force limitee d'insertion
US4632496A (en) * 1983-09-26 1986-12-30 Williams Robert A Connector socket
EP0352967A1 (fr) * 1988-07-29 1990-01-31 The Whitaker Corporation Assemblages électriques incluant une borne électrique femelle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074046A (en) * 1960-12-19 1963-01-15 Cons Engineering Service Inc Coiled wire nut fastener and conductor
US4632496A (en) * 1983-09-26 1986-12-30 Williams Robert A Connector socket
WO1986001645A1 (fr) * 1984-08-31 1986-03-13 Amp Incorporated Bornes et connecteurs de contact a force limitee d'insertion
EP0352967A1 (fr) * 1988-07-29 1990-01-31 The Whitaker Corporation Assemblages électriques incluant une borne électrique femelle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124245A1 (fr) * 2014-02-20 2015-08-27 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connexion enfichable
US9865954B2 (en) 2014-02-20 2018-01-09 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Plug connection

Also Published As

Publication number Publication date
DE4441303A1 (de) 1996-01-04
DE59504088D1 (de) 1998-12-03
EP0836245A3 (fr) 1999-10-06
EP0836245B1 (fr) 2003-03-05
KR100372740B1 (ko) 2003-05-17
DE59510576D1 (de) 2003-04-10

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