EP0993689A1 - Anschlussvorrichtung für isolierte elektrische leiter ohne abisolierung - Google Patents
Anschlussvorrichtung für isolierte elektrische leiter ohne abisolierungInfo
- Publication number
- EP0993689A1 EP0993689A1 EP98936243A EP98936243A EP0993689A1 EP 0993689 A1 EP0993689 A1 EP 0993689A1 EP 98936243 A EP98936243 A EP 98936243A EP 98936243 A EP98936243 A EP 98936243A EP 0993689 A1 EP0993689 A1 EP 0993689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- connection device
- cutting
- sleeve
- socket
- 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
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
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- 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
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
- H01R4/2466—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members having a channel-shaped part, the opposite sidewalls of which comprise insulation-cutting means
-
- 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
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
Definitions
- the invention relates to a connection device for insulated electrical conductors, which penetrates the conductor insulation and thereby makes contact with the conductor core.
- Such stripping-free connection devices have the advantage that the conductors to be connected are only cut off and the ends do not have to be prepared any further. On the other hand, such devices are often complicated and expensive, which ultimately nullifies the time saved in the work preparation.
- the starting point for the Indian consideration is the well-known screw clamp with a sleeve or socket and a screw that can be screwed into it, which can be used as a clamping sleeve or clamping bush.
- This clamping sleeve or clamping sleeve is given the ability to also make contact with an insulated conductor, in that the sleeve or socket has a cutting edge or tip which, when the screw is tightened, through the insulating material penetrates through to the conductor core.
- the cutting edge, tip or the like is preferably formed on an insert part contained in the sleeve or bushing.
- a first basic embodiment of the invention consists in that a socket of essentially rectangular cross-section, the screw of which is perpendicular to the narrow walls and is provided with a pressure bracket made of a resilient material, contains a plate perpendicular to the screw, which has on its side facing the pressure bracket Has cutting edge running transversely to the socket axis.
- the cutting edge is in particular a sharp, preferably prismatic rib. This extends tangentially to the conductor. It pushes the insulation material through locally. On the opposite side, however, the conductor lies with its insulation on the pressure bracket. Since the screwing force is applied in this way by means of the pressure bracket and it springs, there is no fear that the contact pressure will decrease over time due to the shrinking or flowing of the insulating material.
- the current is preferably passed on via the circuit board. This can also be fixed to the sleeve and connected with a low contact resistance or molded onto it.
- a further development of this first embodiment is directed to a mirror-symmetrically designed connecting socket with two screws, two pressure brackets, two opposite receiving openings and with a window in the side wall, the correspondingly provided with two cutting edges Circuit board has a projection on its longitudinal edge, which protrudes into the window.
- a second basic embodiment of the invention uses a different insert.
- This proposal is based on a sleeve with an essentially rectangular cross section and with a screw perpendicular to the narrow walls.
- the insert on the other hand, is a pressure piece with a cutting fork that has two prongs, each with two cutting edges and a tip pointing away from the screw.
- the insulation material is slit tangentially on two opposite sides and pressed apart so that the cutting edges can penetrate the conductor material.
- window openings are provided on the narrow wall opposite the screw, into which the tips of the cutting fork tines penetrate when the screw is screwed in, so that they finally come out of the Project the sleeve outwards.
- This second basic embodiment of the invention is also suitable for a mirror-symmetrical line connector, which is expediently designed in such a way that the pressure piece represents the connecting busbar, is provided with two cutting forks and is fastened in an insulating housing.
- a sleeve and a screw which are guided in the insulating housing in the screwing direction, interact with each cutting fork.
- the pressure piece made of flat material expediently has a U-shaped cross section, the cutting fork tines being formed from projections of the bent legs.
- the cutting fork tines have a triangular outline and are curved with respect to the respective screw axis. This results in two cutting edges running inwards from the triangle tip, ie towards the central plane of the sleeve, between which the conductor is pressed in as in a wedge slot.
- the bent legs of the pressure piece have edge cutouts in the longitudinal center.
- the screw terminal with sleeve or socket and at least one cutting edge or tip is designed in such a way that the conductor core is fastened in the area of a notch resulting from the penetration of the cutting edge or tip into the insulating material of the conductor Condition is not subject to bending. This measure ensures that the conductor core is not susceptible to breakage due to the notch, as is regularly the case with a freely movable conductor core at notch points.
- FIG. 1 is a partially cutaway side view of a known clamping bush with screws and pressure clamps and with a board inserted into the socket with cross-cuts,
- FIG. 2 shows the top view of the circuit board according to FIG. 1
- Fig. 3 shows a cross section III-III of the socket of Fig. 1 and the circuit board
- FIG. 4 is a side view of a line connector with a pressure piece, which has two cutting forks, each of which cooperate with a displaceable sleeve together with a screw,
- FIG. 5 shows the front view of the right sleeve according to FIG. 4 with an inserted conductor
- Fig. 6 is a plan view of the pressure piece according to FIG. 4 in the direction of arrow VI and
- Fig. 7 is the view of the sleeve of FIG. 5 from below without a conductor and pressure piece.
- connection device shown in Figures 1 to 3 largely corresponds to a well-known screw terminal, which, surrounded by a flat insulating material housing, represents a common terminal block.
- the illustrated embodiment is also to be used as a terminal block for switchgear. It is shown in about four times its natural size.
- a bushing 1 with a rectangular cross section is "wound" from flat material, so that the upper narrow wall, into which the threaded holes for the screws 2 are made, consists of two layers.
- U-shaped pressure bracket 3 are clipped with their fork-shaped split upper leg into a neck 4 of the respective screw and thus loosely connected. The lower leg of the pressure bracket protrudes into the socket 1.
- a board 5 which has two prismatic cutting ribs 6 on its upper side, which with tn ö rx rx rx Hi P cn cn P cn rx rx ö cd tn 3 PH cn rx cn 0 01 t- ⁇ hd ⁇ J i 3 HN rx F-
- 3 rx P 3 O 3 IV 0 ZP 3 P- tn P ⁇ PO: 3 rx OP z and others P ⁇ rx rt rx P 3 ⁇ P rx P 3 3 p: P ⁇ 0 H ⁇ 3 P 0 • H IV 0 01 ⁇ P
- the sleeve 10 is cut open according to FIG. 4 and shown in its open position, while the left sleeve
- the folded legs of the pressure piece each have an edge recess 20 in the longitudinal center, which extends to the web of the pressure piece. With the top of this web, the pressure piece rests on a block-like projection 21 of the insulating material body. On the other hand, a strip-like projection 22 engages in the cutouts 20. Since the open side of the insulating body is covered in the installed position by an adjacent terminal block or an end plate, the pressure piece cannot move to either side.
- the cutting ribs 6 of the circuit board according to the first example could also be fastened or molded on the inside of the lower narrow wall of the socket 1 according to FIG. 1 in another way. This could make the device cheaper in mass production.
- the pressure piece 12 of the second example with the tips of Cutting forks must be inserted facing upwards. This would have the advantage that, as in the first example, the spring force of the pressure bracket 3 would hold the conductor in the cutting fork even when the stability of the insulating material fades.
- prongs of the cutting fork could be formed on the side of the bushing 1 according to FIG. 1. Partially punched tongues, which would have the shape of the prongs 15, could reach inwards from the side wall.
Landscapes
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19727927 | 1997-07-01 | ||
DE19727927A DE19727927A1 (de) | 1997-07-01 | 1997-07-01 | Anschlußvorrichtung für isolierte elektrische Leiter ohne Abisolierung |
PCT/DE1998/001721 WO1999001910A1 (de) | 1997-07-01 | 1998-06-24 | Anschlussvorrichtung für isolierte elektrische leiter ohne abisolierung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0993689A1 true EP0993689A1 (de) | 2000-04-19 |
EP0993689B1 EP0993689B1 (de) | 2004-04-07 |
Family
ID=7834214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98936243A Expired - Lifetime EP0993689B1 (de) | 1997-07-01 | 1998-06-24 | Anschlussvorrichtung für isolierte elektrische leiter ohne abisolierung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0993689B1 (de) |
DE (2) | DE19727927A1 (de) |
WO (1) | WO1999001910A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10007090A1 (de) * | 2000-02-16 | 2001-08-23 | Schlegel Georg Gmbh & Co | Anschlussklemme für einen isolierten Leiter |
DE10228137B4 (de) * | 2002-06-07 | 2011-01-13 | Arcus Elektrotechnik Alois Schiffmann Gmbh | Fixiereinrichtung sowie Schraubverbinder für Kabelleiter mit einer derartigen Fixiereinrichtung |
DE102019110675A1 (de) * | 2019-04-25 | 2020-10-29 | Phoenix Contact Gmbh & Co. Kg | Anschlusselement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH225299A (de) * | 1936-12-03 | 1943-01-15 | Licentia Gmbh | Anschlussklemme mit Zwischenplatte. |
DE2419677A1 (de) * | 1974-04-24 | 1975-10-30 | Phoenix Elekt | Elektrische anschlussklemme, insbesondere schaltanlagen-reihenklemme |
US4153324A (en) * | 1978-03-08 | 1979-05-08 | Microdot, Inc. | Self-stripping electrical terminal |
FR2459560A1 (fr) * | 1979-06-19 | 1981-01-09 | Alsthom Cgee | Bornes de connexion pour conducteur electrique isole |
FR2503939A1 (fr) * | 1981-04-14 | 1982-10-15 | Alsthom Cgee | Borne de connexion pour conducteur electrique isole |
FR2585516B1 (fr) * | 1985-07-25 | 1988-03-18 | Legrand Sa | Bloc de jonction a raccordement lateral |
FI96726C (fi) * | 1993-12-27 | 1996-08-12 | Sekko Ab Oy | Kiskoliitin maakaapelin liittämiseksi jonovarokkeeseen |
-
1997
- 1997-07-01 DE DE19727927A patent/DE19727927A1/de not_active Withdrawn
-
1998
- 1998-06-24 DE DE59811152T patent/DE59811152D1/de not_active Expired - Fee Related
- 1998-06-24 EP EP98936243A patent/EP0993689B1/de not_active Expired - Lifetime
- 1998-06-24 WO PCT/DE1998/001721 patent/WO1999001910A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9901910A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19727927A1 (de) | 1999-01-07 |
EP0993689B1 (de) | 2004-04-07 |
DE59811152D1 (de) | 2004-05-13 |
WO1999001910A1 (de) | 1999-01-14 |
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