EP3449533A1 - Elektrischer crimpkontakt - Google Patents

Elektrischer crimpkontakt

Info

Publication number
EP3449533A1
EP3449533A1 EP17711083.0A EP17711083A EP3449533A1 EP 3449533 A1 EP3449533 A1 EP 3449533A1 EP 17711083 A EP17711083 A EP 17711083A EP 3449533 A1 EP3449533 A1 EP 3449533A1
Authority
EP
European Patent Office
Prior art keywords
grooves
center line
contact sleeve
stranded wire
crimping
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
EP17711083.0A
Other languages
English (en)
French (fr)
Other versions
EP3449533B1 (de
Inventor
Jürgen Lappöhn
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.)
ERNI Production and Co KG GmbH
Original Assignee
ERNI Production and Co KG 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 ERNI Production and Co KG GmbH filed Critical ERNI Production and Co KG GmbH
Publication of EP3449533A1 publication Critical patent/EP3449533A1/de
Application granted granted Critical
Publication of EP3449533B1 publication Critical patent/EP3449533B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/188—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping having an uneven wire-receiving surface to improve the contact

Definitions

  • crimp contacts can be seen for example from DE 10 2013 203 796 A1.
  • crimp contacts are from the WO
  • connection terminals are also evident, for example, from DE 36 34 099 C2, JP 2003 249 284 A or WO 2009/096590 A1.
  • DE 10 2013 203 796 A1 discloses an electrical crimp contact device with arrow-shaped grooves, which serve as a fixing device for the cable ends to be contacted. Disclosure of the invention
  • the contact sleeve according to the invention for the connection of at least one stranded wire with arrow-like to the center line extending on both Crimerieln grooves curved with continuous decreasing slope each extending from the center line to the outside, has the advantage of a particularly strong and gas-tight contacting of stranded conductors.
  • the grooves begin at the centerline and extend over the crimping blades to a predetermined distance from the end of the crimping blades or even to the end of the crimping blades themselves.
  • the grooves run to a certain extent in the manner of bird wings swinging.
  • the slope of a tangent to the grooves at the midline at an angle of about 83 ⁇ 2 ° to the center line and this slope of the tangent decreases towards the edge of the grooves until they have an end angle of about 88 ⁇ 1 ° including the midline.
  • the Crimperiel only cover a small distance during crimping, so that there is a greater slope of the grooves than at the outer edge of the Crimpulatel, which cover a greater distance during the crimping process.
  • the grooves could be designed asymmetrically to the center line, that is, the grooves on one side may be different than the grooves on the other side.
  • a particularly preferred embodiment provides that the grooves are symmetrical to the center line.
  • the formation of the grooves can be done in a variety of ways.
  • An advantageous embodiment provides that the grooves are groove-like depressions, which are arranged on the sides of the receiving area facing the stranding line and the Crimpulatel.
  • Fig. 1 shows a contact sleeve with Crimulateln according to the prior art.
  • a contact sleeve shown in Fig. 1 has a Maiscrimp Colour 10, which serves a compression of strands 10b with Crimperielnl Oa, and an Isolationscrimp Colour 1 1 for attaching the Mixcrimp Studentss 10 to an insulation of a stranded conductor 12.
  • the Kunststoffcrimp Colour 10 has a receiving surface 12a. It serves together with the Crimerieln 10a in a known manner the compression of the strands 10b.
  • the insulating crimping area 11 surrounding an insulation of the stranded conductor 12 is arranged on the crimping contact area 10.
  • the insulation crimping area 1 1 surrounds and clamps the stranded wire 12 and thus serves to secure the stranded wire 12 and its strain relief.
  • a plan view, shown in FIG. 2, of a contact crimping region 15, which has two crimp wings 15a, 15b, comprises grooves 13 arranged symmetrically with respect to a center line 14, which are curved in the form of a curve run by birdwing.
  • the curvature is designed so that a tangent to the grooves in the region of the center line 14 encloses an angle as with the center line 14.
  • the slope steadily decreases towards the outer edge of the crimp wings 15a, 15b, so that the pitch of the grooves in the outer region encloses an angle AE to the center line 14.
  • the angle ⁇ s is preferably about 83 ⁇ 2 °, whereas the angle ⁇ E is about 88 ⁇ 1 °.
  • the curved shape of the grooves With a curvature which continuously decreases from the center line 14 in the direction of the edge of the crimp wings 15a, 15b, optimum crimping of strands in the crimp wings 15a, 15b is achieved.
  • the curved arrangement of the grooves takes into account the fact that during crimping in the region of the center line 14, the crimping blades 15a, 15b travel only a small distance, whereas they cover a large distance in the outer region of the crimping blades 15a, 15b.
  • This smaller path in the area of the center line 14 is taken into account by the greater pitch of the grooves, whereas the larger distance traveled during the crimping in the outer area of the Crimperiel 15a, 15b is taken into account by the smaller pitch.
  • the crimping with the aid of these curved grooves enables an optimal contacting of the strands, in particular a gas-tight contacting of the strands, which can not be achieved with linearly extending grooves.
  • the curved grooves are preferably formed symmetrically to the center line 14. However, it can also be provided in an alternative embodiment, the grooves asymmetric form, so on a Crimputel provide grooves with a different pitch than on the other Crimperiel.
  • the grooves are, for example, embossed conditions, beads and the like, which project in the direction of the strands and thus press the strands.
  • the grooves preferably begin at the centerline 14 and extend over the crimping blades 15a, 15b to a predetermined distance from the end of the crimping blades or even to the end of the crimping blades themselves.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Ropes Or Cables (AREA)

Abstract

Eine Kontakthülse für einen Anschluss wenigstens einer Litzenleitung mit einem sich längs einer parallel zur Litzenleitung verlaufenden Mittellinie (14) erstreckenden Aufnahmebereich zum Einlegen von abisolierten Enden der wenigstens einen Litzenleitung und mit zwei Crimpflügeln (15a, 15b), die jeweils aufeinander zu gerichtet und im umgebogenen Zustand die abisolierten Enden klemmen, wobei die Crimpflügel (15a, 15b) Rillen (13) aufweisen, die pfeilartig zu der Mittellinie auf beiden Crimpflügeln (15a, 15b) verlaufen, ist dadurch gekennzeichnet, dass die Rillen (13) gekrümmt mit kontinuierlich abnehmender Steigung jeweils von der Mittellinie (14) beginnend nach außen verlaufen.

Description

ELEKTRISCHER CRIMPKONTAKT
Die Erfindung betrifft eine Kontakthülse für einen Anschluss wenigstens einer Litzenleitung mit den Merkmalen des Oberbegriffs des Anspruchs 1 .
Stand der Technik
Derartige Crimpkontakte gehen beispielsweise aus der DE 10 2013 203 796 A1 hervor. Darüber hinaus sind Crimpkontakte aus der WO
2009/1 19514 A1 bekannt geworden.
Elektrische Verbindungs- und Anschlussklemmen gehen auch beispielsweise aus der DE 36 34 099 C2, der JP 2003 249 284 A oder der WO 2009/096590 A1 hervor.
Insbesondere aus der DE 10 2013 203 796 A1 geht eine elektrische Crimpkontaktvorrichtung mit pfeilförmig verlaufenden Rillen hervor, die als Fixiereinrichtung für die zu kontaktierenden Kabelenden dienen. Offenbarung der Erfindung
Die erfindungsgemäße Kontakthülse für den Anschluss wenigstens einer Litzenleitung mit pfeilartig zu der Mittellinie auf beiden Crimpflügeln verlaufenden Rillen, die gekrümmt mit kontinuierlicher abnehmender Steigung jeweils von der Mittellinie beginnend nach außen verlaufen, weist den Vorteil einer besonders festen und gasdichten Kontaktierung von Litzenleitungen auf. Durch die schwingenartig gekrümmt verlaufenden Rillen werden die Litzen noch wesentlich besser verpresst als bei nicht gekrümmten Rillen. Dies haben umfängliche Untersuchungen der Anmelderin ergeben.
Bevorzugt beginnen die Rillen an der Mittellinie und erstrecken sich über die Crimpflügel bis zu einem vorgegebenen Abstand vom Ende der Crimp- flügel oder sogar bis zum Ende der Crimpflügel selbst.
Die Rillen verlaufen gewissermaßen nach Art von Vogelschwingen schwingenförmig. Die Steigung einer Tangente an die Rillen an der Mittellinie weist gemäß einer vorteilhaften Ausgestaltung einen Winkel von etwa 83 ± 2° zur Mittellinie auf und diese Steigung der Tangente nimmt zum Rand der Rillen hin ab, bis sie einen Endwinkel von etwa 88 ± 1 ° mit der Mittellinie einschließt. Im Bereich der Mittellinie, wo die Crimpflügel während des Crimpens nur einen geringen Weg zurücklegen, ist damit eine größere Steigung der Rillen gegeben als am äußeren Rand der Crimpflügel, die während des Crimpvorgangs einen größeren Weg zurücklegen.
Rein prinzipiell könnten die Rillen asymmetrisch zur Mittellinie ausgestaltet sein, das heißt die Rillen auf der einen Seite können anders verlaufen als die Rillen auf der anderen Seite. Eine besonders bevorzugte Ausgestaltung sieht vor, dass die Rillen zur Mittellinie symmetrisch verlaufen. Die Ausbildung der Rillen kann auf die unterschiedlichste Art und Weise geschehen. Eine vorteilhafte Ausführungsform sieht vor, dass die Rillen rillenartige Vertiefungen sind, welche auf den der Litzenleitung zugewandten Seiten des Aufnahmebereichs und der Crimpflügel angeordnet sind.
Kurze Beschreibung der Zeichnungen
Ausführungsbeispiele der Erfindung sind in den Figuren dargestellt und in der nachfolgenden Beschreibung näher erläutert.
Fig. 1 zeigt eine Kontakthülse mit Crimpflügeln gemäß dem Stand der Technik.
Fig. 2 zeigt eine Aufsicht eines erfindungsgemäßen Kontaktcrimpbereichs. Ausführungsformen der Erfindung
Eine in Fig. 1 dargestellte Kontakthülse weist einen Kontaktcrimpbereich 10 auf, welcher einer Verpressung von Litzen 10b mit Crimpflügelnl Oa dient, und einen Isolationscrimpbereich 1 1 zur Befestigung des Kontaktcrimpbereichs 10 an einer Isolierung einer Litzenleitung 12. Der Kontaktcrimpbereich 10 weist eine Aufnahmefläche 12a auf. Er dient zusammen mit den Crimpflügeln 10a auf an sich bekannte Weise der Verpressung der Litzen 10b. An den Kontaktcrimpbereich 10 anschließend ist der eine Isolierung der Litzenleitung 12 umgreifende Isolationscrimpbereich 1 1 angeordnet. Der Isolationscrimpbereich 1 1 umgreift und klemmt die Litzenleitung 12 und dient so der Befestigung der Litzenleitung 12 und deren Zugentlastung.
Eine in Fig. 2 dargestellte Aufsicht auf einen Kontaktcrimpbereich 15, der zwei Crimpflügel 15a, 15b aufweist, umfasst symmetrisch zu einer Mittellinie 14 angeordnete Rillen 13, die gekrümmt schwingenförmig nach Art von Vogelschwingen verlaufen. Die Krümmung ist dabei so ausgebildet, dass eine Tangente an die Rillen im Bereich der Mittellinie 14 einen Winkel as mit der Mittellinie 14 einschließt. Die Steigung nimmt zum äußeren Rand der Crimpflügel 15a, 15b stetig ab, sodass die Steigung der Rillen im äußeren Bereich einen Winkel ÖE zur Mittellinie 14 einschließt.
Untersuchungen der Anmelderin haben ergeben, dass der Winkel as bevorzugt etwa 83 ± 2° beträgt, wohingegen der Winkel ÖE etwa 88 ± 1 ° beträgt.
Durch diese gekrümmt verlaufende Form der Rillen mit einer Krümmung, die kontinuierlich von der Mittellinie 14 nach außen in Richtung des Randes der Crimpflügel 15a, 15b abnimmt, wird eine optimale Verpressung von Litzen in den Crimpflügeln 15a, 15 b erreicht. Dabei trägt die gekrümmt verlaufende Anordnung der Rillen dem Umstand Rechnung, dass während des Crimpens im Bereich der Mittellinie 14 die Crimpflügel 15a, 15b nur einen kleinen Weg zurücklegen, wohingegen sie im äußeren Bereich der Crimpflügel 15a, 15b einen großen Weg zurücklegen. Diesem kleineren Weg im Bereich der Mittellinie 14 wird durch die größere Steigung der Rillen Rechnung getragen, wohingegen dem größeren zurückgelegten Weg während des Crimpens im äußeren Bereich der Crimpflügel 15a, 15b durch die kleinere Steigung Rechnung getragen wird. Die Crimp- ung mit Hilfe dieser gekrümmten Rillen ermöglicht eine optimale Kontaktierung der Litzen, insbesondere eine gasdichte Kontaktierung der Litzen, die mit linear verlaufenden Rillen nicht erzielt werden kann.
Die gekrümmt verlaufenden Rillen sind bevorzugt symmetrisch zur Mittellinie 14 ausgebildet. Es kann allerdings auch bei einer alternativen Ausführungsform vorgesehen sein, die Rillen unsymmetrisch auszubilden, also auf einem Crimpflügel Rillen mit einer anderen Steigung vorzusehen als auf dem anderen Crimpflügel. Die Rillen sind beispielsweise Einprägun- gen, Sicken und dergleichen, die in Richtung der Litzen vorspringen und so die Litzen pressen.
Die Rillen beginnen bevorzugterweise an der Mittellinie 14 und erstrecken sich über die Crimpflügel 15a, 15b bis zu einem vorgegebenen Abstand vom Ende der Crimpflügel oder sogar bis zum Ende der Crimpflügel selbst.

Claims

Ansprüche
1. Kontakthülse für einen Anschluss wenigstens einer Litzenleitung mit einem sich längs einer parallel zur Litzenleitung verlaufenden Mittellinie (14) erstreckenden Aufnahmebereich zum Einlegen von abisolierten Enden der wenigstens einen Litzenleitung und mit zwei Crimpflü- geln (15a, 15b), die jeweils aufeinander zu gerichtet und im umgebogenen Zustand die abisolierten Enden klemmen, wobei die Crimpflü- gel (15a, 15b) Rillen (13) aufweisen, die pfeilartig zu der Mittellinie auf beiden Crimpflügeln verlaufen, dadurch gekennzeichnet, dass die Rillen (13) gekrümmt mit kontinuierlich abnehmender Steigung jeweils von der Mittellinie beginnend nach außen verlaufen.
2. Kontakthülse nach Anspruch 1 , dadurch gekennzeichnet, dass die Rillen (13) an der Mittellinie (14) beginnen und sich über die Crimpflü- gel (15a, 15b) bis zu einem vorgegebenen Abstand vom Ende der Crimpflügel (15a, 15b) erstrecken.
3. Kontakthülse nach Anspruch 2, dadurch gekennzeichnet, dass die Steigung einer Tangente an die Rillen (13) an der Mittellinie (14) einen Winkel (as) von etwa 83 ± 2° zur Mittellinie aufweist und bis zu einem Winkel (ÖE) von 88 ± 1 ° am Ende der Rillen (13) abnimmt.
4. Kontakthülse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Rillen (13) zur Mittellinie (14) symmetrisch verlaufen.
5. Kontakthülse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Rillen (13) rillenartige Vertiefungen sind, welche auf den der Litzenleitung zugewandten Seiten des Aufnahmebereichs und der Crimpflügel (15a, 15b) angeordnet sind.
EP17711083.0A 2016-04-25 2017-02-21 Kontakthülse Not-in-force EP3449533B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016107659.7A DE102016107659A1 (de) 2016-04-25 2016-04-25 Kontakthülse
PCT/DE2017/100145 WO2017186208A1 (de) 2016-04-25 2017-02-21 Elektrischer crimpkontakt

Publications (2)

Publication Number Publication Date
EP3449533A1 true EP3449533A1 (de) 2019-03-06
EP3449533B1 EP3449533B1 (de) 2021-03-10

Family

ID=58347017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17711083.0A Not-in-force EP3449533B1 (de) 2016-04-25 2017-02-21 Kontakthülse

Country Status (12)

Country Link
US (1) US10566707B2 (de)
EP (1) EP3449533B1 (de)
JP (1) JP6788031B2 (de)
KR (1) KR102182467B1 (de)
CN (1) CN109196722A (de)
BR (1) BR112018071913A2 (de)
CA (1) CA3022012C (de)
DE (1) DE102016107659A1 (de)
IL (1) IL262571B (de)
MX (1) MX376818B (de)
TW (1) TWI703781B (de)
WO (1) WO2017186208A1 (de)

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Also Published As

Publication number Publication date
EP3449533B1 (de) 2021-03-10
IL262571A (en) 2018-12-31
US20190140367A1 (en) 2019-05-09
JP2019515433A (ja) 2019-06-06
TWI703781B (zh) 2020-09-01
TW201743506A (zh) 2017-12-16
KR102182467B1 (ko) 2020-11-24
BR112018071913A2 (pt) 2019-02-05
IL262571B (en) 2020-06-30
CN109196722A (zh) 2019-01-11
JP6788031B2 (ja) 2020-11-18
CA3022012A1 (en) 2017-11-02
US10566707B2 (en) 2020-02-18
WO2017186208A1 (de) 2017-11-02
MX376818B (es) 2025-03-07
KR20190013762A (ko) 2019-02-11
CA3022012C (en) 2020-10-27
DE102016107659A1 (de) 2017-10-26

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