EP0721679B1 - Presshülse - Google Patents
Presshülse Download PDFInfo
- Publication number
- EP0721679B1 EP0721679B1 EP95930421A EP95930421A EP0721679B1 EP 0721679 B1 EP0721679 B1 EP 0721679B1 EP 95930421 A EP95930421 A EP 95930421A EP 95930421 A EP95930421 A EP 95930421A EP 0721679 B1 EP0721679 B1 EP 0721679B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compression
- groove
- compression sleeve
- recesses
- sleeve
- 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
- 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
- H01R4/20—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 using a crimping sleeve
- H01R4/203—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 using a crimping sleeve having an uneven wire-receiving surface to improve the contact
Definitions
- the invention relates to a press sleeve for producing a press connection with one strand, in particular an electrical conductor.
- a compression cable lug which has a compression sleeve has which is provided on its inner surface with a thread.
- the thread is produced by forming a helical, groove-like Depression formed without cutting.
- the thread is said to be a good mechanical and electrical Connection between the press sleeve and the strand to be picked up guarantee.
- this press sleeve as well the known compression sleeves with a smooth inner surface are not always closed leads completely satisfactory press connections.
- the invention is therefore based on the object, a compression sleeve of the beginning to improve the type mentioned. This object is achieved by a Press sleeve with the features of claim 1.
- the groove-like depressions in the longitudinal direction of the sleeve define weak points in the sleeve wall. At these defined weak points, the sleeve wall deforms in such a way that longitudinal cuts are formed. Furthermore, due to the weak points, the restoring force of the press sleeve opposing the pressing is reduced. As a result, a lower pressing force is sufficient to achieve a press connection of the same quality. In addition, the better compressibility enables a shorter length of the compression sleeve and thus possibly a smaller, in particular shorter sleeve with a correspondingly lower need for cast resin. A shorter press sleeve also requires fewer press points.
- the number of pressing points in the circumferential direction (usually six) deviates from the number of groove-like depressions (for example eight).
- the press sleeve according to the invention it is also possible to firmly and electrically connect a single-wire to a multi-wire conductor, even if the two conductors each have the same cross-sectional area but different outer diameters and the inner diameter of the press sleeve is constant over its entire length.
- the groove-like depressions as continuous longitudinal grooves are formed and evenly in the circumferential direction are distributed.
- the latter is also for the quality of the connection advantageous.
- Very advantageous are groove-like depressions, the flanks of each one Form edge with the inner surface, especially groove-like Depressions that are rectangular or trapezoidal Have cross-sectional profile.
- the compression sleeve has cut on their inner lateral surface, which is aligned with a Component extend in the circumferential direction and advantageously Parts of one interrupted by the groove-like depressions Threads.
- the embodiment is in one piece trained, approximately hollow cylindrical press connector, the two identical press sleeves 1 according to the invention axially next to one another having.
- Each press sleeve 1 has cutting edges 3 on its inner lateral surface on which run essentially in the circumferential direction and in the manufacture of the compression sleeve 1 as parts of a thread 2 were formed, preferably by non-cutting shaping.
- By the inward-facing edges of the cutting edges 3 is the inside diameter the compression sleeve 1 defined.
- this edge of the cutting 3 to the outer surface of the press sleeve 1 out the wall thickness of the compression sleeve 1 is defined.
- the compression sleeve 1 also has on the inner jacket side their entire length of axially extending, groove-like depressions 5 on, the flanks of which each have a longitudinal edge with the inner shell side 5 'form.
- six are the same groove-like Wells 5 evenly in the circumferential direction of the compression sleeve 1 distributed. Through the groove-like depressions 5 in these areas, the wall thickness of the compression sleeve 1 is reduced.
- the groove-like depressions 5 are as Longitudinal grooves formed with a rectangular cross section; however, a trapezoidal or round cross section could also be used Find application. The production of the groove-like depressions 5 can be made without cutting or cutting.
- the compression sleeve 1 carries several on its outer surface Markings 7 for attaching the press tool, through which ring zones experiencing compression are defined.
- the groove-like depressions 5 are exemplary embodiments consistently over the entire length of the compression sleeve 1 with the provided the same cross section, but it would for the invention Formation of longitudinal cuts is sufficient if the groove-like depressions 5 essentially in the area of the markings 7 defined ring zones would be formed.
- the two compression sleeves 1 designed so that they have a common Outer surface, the same inner diameter that Cut 3 as parts of the same thread and over both Press sleeves 1, the continuous groove-like depressions 5 have.
- the Press connector In the middle area of the press connector, in which the two press sleeves 1 merge into, the Press connector one from the inner surface to the outer surface reaching hole 9.
- the compression sleeves 1 are on the end faces the compression sleeves 1 chamfered to the inner surface to the To facilitate insertion of a conductor strand.
- a Press connector with two press sleeves according to the invention also two Have blind holes so that the compression sleeves through a central wall are separated.
- the inside diameter of the Blind holes or parts of the hollow cylinder different be, the press connector so be a reducing connector.
- press sleeve according to the invention could also be part of a Press cable lug.
- ferrule is not on electrical conductors limited. It can also be used to manufacture a mechanical Connection with any strands can be used.
- Press sleeve 1 To produce a press connection by means of an inventive Press sleeve 1 is usually first the to be pressed, Insulation-free conductor in the greased with press grease Press sleeve 1 introduced. Then get on through the markings 7 marked positions one after the other a press tool, for example, a pressing tongs, attached and in the press the corresponding sleeve zone with a force, the to a predetermined pressing force between the Press sleeve 1 and the conductor inserted into it.
- a press tool for example, a pressing tongs
- the sleeve wall deforms these weak points in the respective ring zone such that the longitudinal edges 5 'of the recesses 5 to themselves in the longitudinal direction of the sleeve extending longitudinal cutting.
- the groove-like depressions 5 also have after pressing an albeit reduced free cross section. Meals how in the exemplary embodiment, such a recess 5 in at least one of the end faces of the compression sleeve 1 or at the hole 9, so They thus become a pressure relief channel for the press grease. If the press grease heats up, it can then flow through these pressure relief channels expand. This can prevent a pressure builds up in the press sleeve, which leads to an expansion the press sleeve could lead.
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Ropes Or Cables (AREA)
- Impact Printers (AREA)
Description
Ganz besonders vorteilhaft ist es, wenn die Zahl der Preßstellen in Umfangsrichtung (üblicherweise sechs) von der Zahl der nutartigen Vertiefungen abweicht (z.B. acht).
Mit der erfindungsgemäßen Preßhülse ist es auch möglich, einen eindrähtigen mit einem mehrdrähtigen Leiter elektrisch und mechanisch fest zu verbinden, auch wenn die beiden Leiter jeweils die gleiche Querschnittsfläche aber unterschiedliche Außendurchmesser aufweisen und der Innendurchmesser der Preßhülse über ihre gesamte Länge konstant ist.
- Fig. 1
- eine Seitenansicht auf das Ausführungsbeispiel,
- Fig. 2
- eine Stirnansicht des Ausführungsbeispiels,
- Fig. 3
- einen Längsschnitt durch das Ausführungsbeispiel.
Claims (11)
- Preßhülse (1) zur Herstellung einer Preßverbindung mit einem Strang, insbesondere einem elektrischen Leiter, die in ihrer Innenmantelfläche zumindest in den für die Verpressung vorgesehenen Ringzonen mit nutartigen Vertiefungen (5) versehen ist, die sich in Hülsenlängsrichtung erstrecken, wobei die Vertiefungen (5) eine Tiefe haben, welche die Wandstärke der Preßhülse (1) auf einen Wert reduziert, der beim Verpressen zu einer Bildung von Längsschneiden (5') entlang der nutartigen Vertiefung (5) führt, und wobei die Innenmantelfläche zusätzlich mit Schneiden (3) versehen ist, deren Erstreckungsrichtung zumindest eine Komponente in Umfangsrichtung der Preßhülse (1) aufweist.
- Preßhülse nach Anspruch 1, dadurch gekennzeichnet, daß die Schneiden (3) Teile eines durch die nutartigen Vertiefungen (5) unterbrochenen Gewindes sind.
- Preßhülse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zumindest ein Teil der nutartigen Vertiefungen (5) als in wenigstens einer der beiden Stirnflächen der Preßhülse (1) mündende Druckentlastungskanäle für Preßfett ausgebildet ist.
- Preßhülse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die nutartigen Vertiefungen (5) als durchgängige Längsnuten ausgebildet sind.
- Preßhülse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die nutartigen Vertiefungen (5) gleichmäßig in Umfangsrichtung verteilt angeordnet sind.
- Preßhülse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die nutartigen Vertiefungen (5) Flanken aufweisen, die je eine Kante mit der Innenmantelfläche bilden.
- Preßhülse nach Anspruch 6, dadurch gekennzeichnet, daß die nutartigen Vertiefungen (5) ein rechteckförmiges oder trapezförmiges Querschnittsprofil haben.
- Preßhülse nach einem der Ansprüche 1 bis 7 mit einem die Zahl der Preßstellen in Umfangsrichtung vorgebenden Preßwerkzeug, dadurch gekennzeichnet, daß die Zahl der nutartigen Vertiefungen (5) von der Zahl der Preßstellen in Umfangsrichtung abweicht.
- Preßhülse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Preßhülse (1) Teil eines Preßverbinders ist.
- Preßhülse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Preßhülse (1) Teil eines Preßkabelschuhs ist.
- Verfahren zur Herstellung einer Preßverbindung mittels einer Preßhülse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Verpressung der Preßhülse (1) in den eine Verpressung erfahrenden Ringzonen mit einer Kraft erfolgt, die zu einer Bildung von Schneiden entlang der nutartigen Vertiefungen (5) führt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4426790 | 1994-07-28 | ||
DE4426790A DE4426790A1 (de) | 1994-07-28 | 1994-07-28 | Preßhülse |
PCT/EP1995/003008 WO1996003784A1 (de) | 1994-07-28 | 1995-07-28 | Presshülse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0721679A1 EP0721679A1 (de) | 1996-07-17 |
EP0721679B1 true EP0721679B1 (de) | 1999-12-22 |
Family
ID=6524381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95930421A Expired - Lifetime EP0721679B1 (de) | 1994-07-28 | 1995-07-28 | Presshülse |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0721679B1 (de) |
AT (1) | ATE188069T1 (de) |
DE (1) | DE4426790A1 (de) |
HU (1) | HUT75412A (de) |
WO (1) | WO1996003784A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357048A1 (de) * | 2003-12-04 | 2005-07-21 | Leoni Bordnetz-Systeme Gmbh & Co Kg | Verfahren zum Herstellen einer elektrischen Verbindung zwischen einem Aluminiumleiter und einem Kontaktelement |
FR2896093B1 (fr) * | 2006-01-10 | 2009-07-10 | Diamecans Soc Par Actions Simp | Borne electrique de coupe circuit, ensemble comprenant une borne electrique de coupe-circuit et un cable d'alimentation electrique, et dispositif de coupure de courant en sortie d'une batterie d'accumulateur |
US8246393B2 (en) * | 2007-03-12 | 2012-08-21 | Hubbell Incorporated | Implosion connector and method for use with transmission line conductors comprising composite cores |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH208425A (it) * | 1938-03-16 | 1940-01-31 | Bagnagatti Achille | Dispositivo di giunzione elettrica e meccanica per conduttori. |
US2375741A (en) * | 1942-01-17 | 1945-05-08 | Dibner Bern | Method of connecting a sleeve to a wire |
US2735997A (en) * | 1953-11-09 | 1956-02-21 | Electmcal connector | |
GB938242A (en) * | 1961-02-02 | 1963-10-02 | Burndy Corp | Fluted connector |
GB1347234A (en) * | 1970-12-22 | 1974-02-27 | Ross Courtney Co Ltd | Solderless joints for electrical conductors |
FR2509919A1 (fr) * | 1981-07-15 | 1983-01-21 | Dervaux Ets | Manchon d'ancrage ou de jonction |
US4469390A (en) * | 1982-06-09 | 1984-09-04 | Kings Electronics Co., Inc. | Crimped connector |
FR2553594B1 (fr) * | 1983-10-14 | 1986-02-21 | Auxiliaire Appar Electric | Connecteur pour cables electriques isoles |
-
1994
- 1994-07-28 DE DE4426790A patent/DE4426790A1/de not_active Withdrawn
-
1995
- 1995-07-28 WO PCT/EP1995/003008 patent/WO1996003784A1/de active IP Right Grant
- 1995-07-28 AT AT95930421T patent/ATE188069T1/de not_active IP Right Cessation
- 1995-07-28 EP EP95930421A patent/EP0721679B1/de not_active Expired - Lifetime
- 1995-07-28 HU HU9600768A patent/HUT75412A/hu unknown
Also Published As
Publication number | Publication date |
---|---|
DE4426790A1 (de) | 1996-02-08 |
ATE188069T1 (de) | 2000-01-15 |
HUT75412A (en) | 1997-05-28 |
HU9600768D0 (en) | 1996-05-28 |
WO1996003784A1 (de) | 1996-02-08 |
EP0721679A1 (de) | 1996-07-17 |
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