EP1178569B1 - Elément électrique de connexion - Google Patents

Elément électrique de connexion Download PDF

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Publication number
EP1178569B1
EP1178569B1 EP01102642A EP01102642A EP1178569B1 EP 1178569 B1 EP1178569 B1 EP 1178569B1 EP 01102642 A EP01102642 A EP 01102642A EP 01102642 A EP01102642 A EP 01102642A EP 1178569 B1 EP1178569 B1 EP 1178569B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
element according
connecting element
electric connecting
insulation 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
Application number
EP01102642A
Other languages
German (de)
English (en)
Other versions
EP1178569A2 (fr
EP1178569A3 (fr
Inventor
Ralf Dr. Kaufmann
Manfred Höcherl
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.)
Maquet Cardiopulmonary GmbH
Original Assignee
Jostra AG
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 Jostra AG filed Critical Jostra AG
Publication of EP1178569A2 publication Critical patent/EP1178569A2/fr
Publication of EP1178569A3 publication Critical patent/EP1178569A3/fr
Application granted granted Critical
Publication of EP1178569B1 publication Critical patent/EP1178569B1/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
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
    • H01R4/2487—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts penetrating by means of the screw thread
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/909—Medical use or attached to human body

Definitions

  • the present invention relates to an electrical connection element, that to an electrically insulated end of a wire can be connected with the end of the wire when connecting of the connection element stripped and secure at the same time is fastened in the connecting element.
  • connection elements such as electrical sockets or electrical plugs
  • the end of the wire is conventionally stripped and then by means of a clamp or screw connection with the connection element connected.
  • connection elements such as electrical sockets or electrical plugs
  • the end of the wire is conventionally stripped and then by means of a clamp or screw connection with the connection element connected.
  • connection elements such as electrical sockets or electrical plugs
  • the end of the wire is conventionally stripped and then by means of a clamp or screw connection with the connection element connected.
  • connection element such as electrical sockets or electrical plugs
  • the end of the wire is conventionally stripped and then by means of a clamp or screw connection with the connection element connected.
  • a Touching the conductive core of the wire could be an electrostatic Cause discharge.
  • Such an electrostatic Discharge can lead to severe cardiac arrhythmias cause ventricular fibrillation.
  • the connector must be cut to the, but continue to connect electrically insulated end of the wire be removed without first removing the wire insulation becomes.
  • connection element for the connection to an electrically insulated end of a wire known.
  • the connection element comprises a first sleeve to which the end of the wire can be inserted and clamped. With the an insulating sleeve is connected to the first sleeve and connected to a Connection contact is provided.
  • the connection contact is conical or spherical. The insulation of the wire is removed before inserting the wire into the first sleeve. The stripped end of the wire is through the connector pressed against the first sleeve, causing an electrical Contact is established.
  • the invention has for its object an electrical connection element for connection to an electrically insulated Provide end of a wire with the wire end in front the connection does not have to be stripped, which is easy to do handle and that is a small size and a simple Has structure.
  • the electrical connection element according to the invention consists of two parts, a so-called clamping sleeve and a so-called Insulation sleeve that can be connected to each other.
  • the electrically insulated end of the wire to which the electrical Connection element to be connected is first in the clamping sleeve inserted and provisionally clamped there. For this purpose, it can be trained in a corresponding, for example Channel of the clamping sleeve are inserted and clamped. This channel is preferably designed such that the end of the wire inserted in a double force relief loop and is held.
  • Clamping sleeve and insulation sleeve are designed so that if they are screwed together, for example be connected, clamp the wire between itself and its Eliminate the insulation, using a connection contact that at the insulation sleeve is provided in electrical contact comes with the now stripped end of the wire.
  • the clamping sleeve and the insulation sleeve are by a locking ring against unintentional mutual loosening, for example secured by screwing.
  • the clamping sleeve can for this purpose, adjacent to the external thread on its outside be provided with a projection into a gap on the circumference the locking ring is insertable and a locking connection between the clamping sleeve and locking ring.
  • the clamping sleeve preferably has a to the connection point with the insulation sleeve in diameter widening recess, for example in the form of a Funnel can be designed on.
  • the end of the wire is advantageously inserted so far into the clamping sleeve that the end of the wire is roughly at the junction located between the clamping sleeve and insulation sleeve.
  • the connection contact the insulation sleeve includes a forward tapered crimp contact element, which is designed so that when connecting the ferrule and insulation sleeve in penetrates the recess of the clamping sleeve. It squeezes it end of the wire located there against the wall of the recess the clamping sleeve.
  • the crimp contact element can take into account the above specified shape can be formed differently. It can, for example, from a screw thread, from several disks arranged one behind the other at a distance from one another, which taper in diameter, or from several in diameter ever smaller cylinders exist. critical is that when the pinch contact element penetrates The end of the wire is not compressed, but securely against the wall the recess of the clamping sleeve is pressed, and at the same time the insulation of the wire end is removed. The outer Edges of the crimp contact element must therefore be so sharp be that they remove the insulation from the wire end can, but again they must not be so sharply trained be that they cut through the wire. A offers further security against cutting the wire strand a certain flexibility of the clamping sleeve material.
  • connection contact of the insulation sleeve also shows that Pinch contact element advantageously also with this Crimp contact element electrically connected connecting element on.
  • a plug pin or a socket can be a corresponding matching socket or a plug pin can be connected, so that to the invention Connection element a further electrical Line and electrical wires are connectable.
  • the plug pin and the socket should be as possible be isolated from the outside so that it can be prevented that a user connects to the stripped wire comes.
  • Clamping sleeve and insulating sleeve can be made in different ways be connected to each other. For example, you can do this with suitable screw threads or a connecting device in the form of a bayonet lock or a Luer lock lock be provided.
  • Clamping sleeve and insulation sleeve must be made of one electrical insulating material. You can do this, for example an impact resistant and at the intended application temperatures little flowing plastic are used.
  • a plastic or other material is easily sterilized, for example by ethylene oxide can be. So even under unfavorable operating conditions no corrosion occurs and always a good electrical one Contact is guaranteed, it is advantageous if the electrically conductive parts, such as the connection contact the insulation sleeve, made of non-corrosive materials, such as stainless steel. Furthermore these materials can still be coated, e.g. B. brass gold-plated to further improve the electrical contact.
  • the locking ring when screwing the clamping sleeve and the insulation sleeve together when a cogging torque is exceeded due to deformation Overcome the lead.
  • the head start is dimensioned that if the two sleeves are screwed on further, the insulation sleeve disappears and no interaction has more with the locking ring. The sleeves can then without screwed further resistance and the inserted wire be squeezed.
  • the insulation sleeve can have a peripheral bead on its outside and provided at least one axially directed web be a stop for at least one on the Forms locking hooks arranged on the inside of the locking clamp ring, provided that the clamping sleeve is locked together with the one that is locked with it Snap ring is screwed into the insulation sleeve, whereby the at least one latching hook cannot be detached from the circumferential bead can be snapped in and thereby unscrew the clamping sleeve and insulation sleeve prevented.
  • the locking ring ensures that the insulation sleeve and no longer twist the clamping sleeve against each other and thereby can separate from each other again.
  • the Insulation sleeve on four axially directed webs the stops Form for four snap hooks arranged on the snap ring. This can ensure that practically none Rotational movement of the insulation sleeve with respect to the clamping sleeve possible is.
  • the electrical connection element according to the invention an easy to use, simply constructed, small one Connection element that is secure on a non-stripped Wire can be attached, the user with the electrically conductive part of the wire not in contact comes, so that the electrical connection element according to the invention especially in medical technology, for example in Connection of an external pacemaker, particularly advantageous can be used.
  • Fig. 1 shows a schematic cross section through an embodiment of the electrical connection element according to the invention.
  • the individual elements are for a clearer representation the connecting element in the exploded state shown.
  • the electrical connection element according to the invention consists of two parts, namely a clamping sleeve 10 and one Insulation sleeve 20.
  • the end of the wire is in the clamping sleeve 30, which is to be connected to the connecting element, introduced.
  • the clamping sleeve 10 has an opening in which the wire 30 can be inserted. In the illustrated here Embodiment, this opening consists of a channel 12 and a funnel-shaped inlet 14, through which the Wire 30 introduced in the form of a force relief loop can be.
  • the clamping sleeve 10 points to the insulation sleeve 20 facing end a widening recess 16, which is designed here in the form of a funnel. In this recess 16 the wire 30 is later clamped. The wire 30 must be inserted so far into the clamping sleeve 10 that its end approximately with the end of the recess 16.
  • the crimp contact element 22 of the connection contact 21 of the Insulation sleeve 20 and clamps the end of the wire 30, as can be seen better in FIG. 2 described below can.
  • the crimp contact element 22 has a Diameter tapering shape forward, which provided with edges is on.
  • the crimp contact element 22 shown here is in the form of a screw.
  • connection contact 21 of the insulation sleeve 20 also has an electrically connected to the crimp contact element Connecting element 23.
  • This is in the form of a direct one with the pin contact element 22 connected connector pin shown.
  • the Plug pin can be a socket, not shown here are connected to the connecting element according to the invention to connect with other electrical wires, for example used to connect an external pacemaker can be. So that the user with the electrical Wire does not come into contact, is the connecting element 23 preferably insulated from the outside. So here is the as Connecting element 23 serving plug pin simply in one outer shell 24 out.
  • the clamping sleeve 10 and the insulation sleeve 20 must be together get connected.
  • Connection options such as a bayonet lock or a Snap connection, conceivable.
  • Fig. 2 shows in the form of a schematic cross section in Fig. 1 shown connector element according to the invention in the assembled Status.
  • the clamping sleeve 10 and the insulation sleeve 20 are screwed together here and thus together connected. It can be seen how the end of the wire 30 between the crimp contact element 22 and the wall of the recess 16 is squeezed.
  • the edges of the crimp contact element 22, here the outer edges of the screw at the same time the insulation of the wire 30 aside, so that electrical contact between the wire 30 and the Crimp contact element 22 is produced and the electrical Wire 30 at the same time safely between crimp contact element 22 and the wall of the recess 16 is held.
  • the insulation sleeve 20 can be seen how that as a connector pin trained connecting element 23 is in its shell 24.
  • Fig. 3 shows another embodiment of the connection contact 21 of the insulation sleeve 20.
  • the crimp contact element 22 of the contact 21 here consists of several at a distance mutually arranged disks 26, one towards the front have ever smaller diameters.
  • Fig. 4 shows yet another embodiment of the connection contact 21 of the insulation sleeve 20.
  • the crimp contact element 22 of the connection contact here consists of several cylinders 27 arranged one behind the other, the diameter the cylinder 27 is getting smaller and smaller towards the front.
  • FIG. 5 shows an application of the invention Connection element when connecting an external pacemaker 40 on a heart wire 50, i.e. H. one with the heart muscle 52 connected and led out of the body Wire 50, which is shown here in the form of a pair of wires.
  • the external pacemaker 40 has two connecting lines 42, each provided with plugs 44 at its end are. These plugs 44 are each with the connecting element 23 of the two according to the invention used here electrical connection elements 60 connected.
  • the top Connection element 60 according to the invention is here in its pulled apart Condition and the lower connection element according to the invention 60 shown in its assembled state.
  • connection contact 21 is made of plastic, preferably transparent hard PVC, PC or ABS.
  • cover 24 Fig. 1 is a touch protection cap 80 for the connection contact 21 provided to avoid their loss via a connecting web 82 with a retaining ring 81 connected is.
  • Touch protection cap 80 should be improved Friction clamping on the connection contact 21 from a softer Plastic such.
  • B. PE or PP exist.
  • a projection 19 in the form of a raised cylinder sector in front of the external thread 18.
  • the height of the projection 19 is dimensioned so that they the radial thread play between the external thread 18 and internal thread 25 (Fig. 7) corresponds. Thereby the subsequent screw assembly is not affected.
  • the circumferential width of the projection 19 corresponds to the width of one Gap 72 of a locking ring 70 for securing the parts 10 and 20.
  • the locking ring 70 When assembling the connection element according to FIGS. 7 and 8 the locking ring 70 is first on the outer surface of the Recess 16 clipped. The projection 19 must be in the gap 72 lie. After inserting the connection contact 21 into the Insulation sleeve 20, the external thread 18 in the first thread of the internal thread 25 screwed. The rest Locking hook 71 of the locking clamp ring 70 via a circumferential bead 32 the insulation sleeve 20 a. They come between axial webs 28 to lie on the outer surface of the sleeve 20. The snap ring 70 prevents an unintentional in this way Unscrew the parts 10 and 20. The axial webs 28 prevent the locking clip ring from rotating via the locking hooks 71 70. After pushing on the protective cap 80 on the connection contact 21, the connection element is in its ready for use condition (Fig. 7).
  • Fig. 7 it is also shown how a user a Wire, for example the extracorporeal end of an implanted Pacemaker electrode 30 through the funnel-shaped Inlet 14 to an insertion cone 29 of the connection contact 21 slides past along an insertion path 31.
  • the Projection 19 on part 10 in the gap 72 of the locking ring 70 (Fig. 6) ensures the anti-rotation of the locking ring 70 for a light screw protection of the entire connector configuration. Through this screw lock it is guaranteed that the user always has a screwed-on, but nevertheless a coherent, ready-to-install connection element after unpacking the item in your hands holds.
  • Fig. 8 shows the connected functional connection element.
  • the touch protection cap 80 Before inserting it into a temporary pacemaker 40 (FIG. 5), the touch protection cap 80 must be removed from the connection contact 21 are deducted.
  • the protective cap 80 When executing a Connection element with a fixed sleeve 24 for protection against contact as in Fig. 1 and the presence of corresponding Safety sockets on the temporary pacemaker can the protective cap 80 can also be dispensed with.

Landscapes

  • Electrotherapy Devices (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Claims (18)

  1. Élément de connexion électrique pour la connexion à une extrémité électriquement isolée d'un fil, comprenant une douille de serrage (10), dans laquelle l'extrémité du fil métallique (30) peut être introduite et immobilisée par serrage, et une douille d'isolation (20) qui peut être reliée à la précédente et qui est munie d'un contact de connexion (21), caractérisé en ce que, lors de la liaison de la douille de serrage (10) et de la douille d'isolation (20), le contact de connexion (21) de la douille d'isolation (20) est amené et maintenu en contact avec l'extrémité du fil métallique (30) en supprimant l'isolation, la douille de serrage (10) et la douille d'isolation (20) étant protégées contre une désolidarisation mutuelle accidentelle par l'intermédiaire d'une bague de serrage à emboítement (70).
  2. Élément de connexion électrique selon la revendication 1, caractérisé en ce que la douille de serrage (10) est pourvue d'un évidement (16) dont le diamètre croit vers le point de liaison avec la douille d'isolation (20) et dans lequel est introduit le contact de connexion (21) de la douille d'isolation (20), lequel comporte un élément de contact par écrasement (22) qui se rétrécit de manière correspondante à l'évidement (16), le fil métallique (30) étant serré entre l'élément de contact par écrasement (22) et l'évidement (16) de la douille de serrage (10) en supprimant son isolation.
  3. Élément de connexion électrique selon la revendication 2, caractérisé en ce que l'élément de contact par écrasement (22) comporte, sur son côté extérieur, un filet de vis dont les bords extérieurs sont arrondis.
  4. Élément de connexion électrique selon la revendication 2, caractérisé en ce que l'élément de contact par écrasement (22) comprend des disques individuels de diamètre décroissant (26) disposées à distance les uns derrière les autres.
  5. Élément de connexion électrique selon la revendication 2, caractérisé en ce que l'élément de contact par écrasement (22) comprend des cylindres individuels de diamètre décroissant (27) disposés les uns derrière les autres.
  6. Élément de connexion électrique selon les revendications 2 à 5, caractérisé en ce qu'en plus de l'élément de contact par écrasement (22) le contact de connexion (21) comporte aussi un élément de liaison (23) en forme de prise isolée vers l'extérieur ou de fiche isolée vers l'extérieur pour la connexion d'une fiche de liaison, respectivement d'une prise de liaison.
  7. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que la liaison entre la douille de serrage (10) et la douille d'isolation (20) s'effectue par l'intermédiaire d'un filet de vis (18, 25).
  8. Élément de connexion électrique selon l'une des revendications 1 à 6, caractérisé en ce que la liaison entre la douille de serrage (10) et la douille d'isolation (20) s'effectue par l'intermédiaire d'une fermeture à baïonnette.
  9. Élément de connexion électrique selon l'une des revendications 1 à 6, caractérisé en ce que la liaison entre la douille de serrage (10) et la douille d'isolation (20) s'effectue par l'intermédiaire d'une fermeture Luer Lock.
  10. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que la douille de serrage (10) est pourvue d'un canal (12) dans lequel peut être introduite l'extrémité du fil métallique (30) en forme de double boucle de décharge.
  11. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que la douille de serrage (10) et la douille d'isolation (20) sont constituées de matière plastique résistante aux chocs, à faible fluage et stérilisable à l'oxyde d'éthylène.
  12. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que le contact de connexion (21) de la douille d'isolation (20) est en acier fin.
  13. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que le contact de connexion (21) en acier fin est pourvu d'une couche pour l'amélioration du contact électrique.
  14. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce qu'il est employé pour la connexion d'un stimulateur cardiaque externe (40) à des fils métalliques électriques (50) qui sont reliés au myocarde (52) et qui sortent du corps.
  15. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que, sur son côté extérieur, la douille de serrage (10) comporte, au voisinage de son filet extérieur (18), une saillie (19) qui peut être introduite dans une fente (72) à la périphérie de la bague de serrage à emboítement (70).
  16. Élément de connexion électrique selon la revendication 15, caractérisé en ce que, lors de l'assemblage par vissage de la douille de serrage (10) et de la douille d'isolation (20), la bague de serrage à emboítement (70) surmonte la saillie (19) par déformation en cas de dépassement d'un couple d'emboítement.
  17. Élément de connexion électrique selon l'une des revendications précédentes, caractérisé en ce que, sur son côté extérieur, la douille d'isolation (20) comporte un bourrelet périphérique (32) et au moins une nervure orientée axialement (28) qui forme une butée pour au moins un ergot (71), disposé sur le côté intérieur de la bague de serrage à emboítement (70), lorsque la douille de serrage (10) est vissée dans la douille d'isolation (20) conjointement avec la bague de serrage à emboítement (70) emboítée avec elle, le au moins un ergot (71) étant emboítable de manière non détachable par-dessus le bourrelet périphérique (32) et empêchant ainsi un dévissage de la douille de serrage (10) et de la douille d'isolation (20).
  18. Élément de connexion électrique selon la revendication 17, caractérisé en ce que la douille d'isolation (20) est munie de quatre nervures orientées axialement (28) qui forment des butées pour quatre ergots (71) disposés sur la bague de serrage à emboítement (70).
EP01102642A 2000-08-02 2001-02-07 Elément électrique de connexion Expired - Lifetime EP1178569B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10037613A DE10037613C2 (de) 2000-08-02 2000-08-02 Elektrisches Anschlusselement
DE10037613 2000-08-02

Publications (3)

Publication Number Publication Date
EP1178569A2 EP1178569A2 (fr) 2002-02-06
EP1178569A3 EP1178569A3 (fr) 2002-11-27
EP1178569B1 true EP1178569B1 (fr) 2004-01-28

Family

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Application Number Title Priority Date Filing Date
EP01102642A Expired - Lifetime EP1178569B1 (fr) 2000-08-02 2001-02-07 Elément électrique de connexion

Country Status (7)

Country Link
US (2) US20020031938A1 (fr)
EP (1) EP1178569B1 (fr)
JP (1) JP3475331B2 (fr)
AT (1) ATE258722T1 (fr)
DE (2) DE10037613C2 (fr)
ES (1) ES2211673T3 (fr)
TR (1) TR200400356T4 (fr)

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CN109449869B (zh) * 2018-12-14 2023-09-08 国家电网有限公司 带电更换电能表的接线保护装置
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Also Published As

Publication number Publication date
JP3475331B2 (ja) 2003-12-08
ATE258722T1 (de) 2004-02-15
EP1178569A2 (fr) 2002-02-06
ES2211673T3 (es) 2004-07-16
DE50101381D1 (de) 2004-03-04
DE10037613C2 (de) 2002-08-01
DE10037613A1 (de) 2002-02-21
JP2002056905A (ja) 2002-02-22
US6644998B2 (en) 2003-11-11
US20020197905A1 (en) 2002-12-26
EP1178569A3 (fr) 2002-11-27
TR200400356T4 (tr) 2004-04-21
US20020031938A1 (en) 2002-03-14

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